KR102747588B1 - A laundry apparatus - Google Patents

Abstract

The present invention relates to a garment treatment device including a reducer provided between a motor unit and a drum to convert power provided by the motor unit to rotate the drum, and wherein the motor unit is coupled and fixed to the reducer.

Description

{A laundry apparatus}

The present invention relates to a garment treatment device. More specifically, it relates to a garment treatment device having a driving unit directly connected to a drum for accommodating garments and capable of rotating the drum.

A clothing treatment device is a device that can remove dust or foreign substances attached to clothing by applying physical force to the clothing, and includes washing machines, dryers, and refreshers (stylers).

A washing machine is equipped to perform a washing cycle that supplies water and detergent to clothes to separate and remove foreign substances from the clothes.

Dryers are classified into exhaust-type dryers and circulation-type dryers, and are commonly equipped to produce high-temperature hot air through a heater and perform a drying process to remove moisture contained in clothes by exposing the hot air to clothes.

Recently, dryers have been equipped to perform the drying process intensively by omitting the configuration for supplying or draining water inside the clothes and also omitting the tub for containing water inside the cabinet. This has the advantage of simplifying the structure inside the dryer and directly supplying hot air to the drum containing the clothes, thereby improving the drying efficiency.

Such a dryer may include a drum for accommodating the clothes, a hot air supply unit for supplying hot air to the drum, and a driving unit for rotating the drum. Accordingly, the dryer may supply hot air into the drum to dry the clothes accommodated in the drum, and may rotate the drum so that the surface of the clothes is evenly exposed to the hot air. As a result, the entire surface of the clothes may evenly come into contact with the hot air, thereby completing drying.

Meanwhile, the driving unit needs to be fixed inside the cabinet in order to rotate the drum. In addition, if the driving unit is provided to rotate a rotation shaft coupled to the drum, it needs to be coupled in parallel with the rotation shaft. However, since the dryer does not have a tub fixed inside the cabinet, there is a limitation in that the driving unit cannot be fixed to the tub like in the washing machine.

To solve this problem, a dryer that fixes the drive unit to the back of the cabinet has appeared. [Refer to Japanese Patent Publication JPS55-081914A, Japanese Patent Publication JPS55-115455A, Japanese Patent Publication JPS57-063724A, and Japanese Patent Publication JPS57-124674A]

Figure 1 illustrates the structure of a conventional dryer in which the driving unit is coupled to the back of the cabinet.

Such a dryer may include a cabinet (1) forming an exterior, a drum (2) rotatably provided inside the cabinet (1) to accommodate clothes, and a driving unit (3) provided to rotate the drum (2).

The above driving unit (3) may be arranged on the back surface of the drum (2) to rotate the drum (2), and may be fixed by being joined to the back panel (11) forming the back surface of the cabinet (1). Accordingly, the driving unit (3) may be fixed to the cabinet (1) to rotate the drum (2).

The drive unit (3) of the above-mentioned conventional dryer may commonly include a stator (31) fixed to the back panel (11), a rotor (32) rotated by the stator (31), and a rotational shaft (33) coupled with the rotor (32) to rotate the drum (2), and includes a reducer (37) provided to rotate the drum (2) by increasing torque while reducing the rpm of the rotational shaft (33).

In addition, conventional dryers commonly further include a fixing member (4) that fixes the driving member (3) to the back panel (11). The fixing member (4) may include at least one of a first fixing member (41) that fixes the stator (31) to the back panel (11) and a second fixing member (42) that fixes the rotation shaft (33) to the back panel (11). As a result, conventional dryers were able to stably rotate the drum (2) by arranging the rotation shaft (33) coupled to the drum (2) and the driving member (3) in parallel.

However, since the back panel (11) of the cabinet is made of a thin steel plate, it is easily deformed or vibrates even with a relatively small external force. Furthermore, since the back panel (11) receives not only the load of the driving unit (3) but also the load of the drum (2) through the rotation shaft (33), it may be difficult to maintain its shape.

In addition, if clothing is eccentric inside the drum (2) or repeatedly falls inside the drum (2) during the rotation process, a repetitive external force may be transmitted to the back panel (11), causing the back panel (11) to vibrate.

If vibration or external force is transmitted to the back panel (11) and the back panel (11) is bent or deformed even temporarily, the rotation shaft (33) connecting the driving unit (3) and the drum (2) may become misaligned. Accordingly, unnecessary vibration or noise may occur in the driving unit (3), and in severe cases, the rotation shaft (33) may be damaged. In addition, there is a problem in that unnecessary noise is generated in the process of the back panel (11) being bent or deformed.

In addition, there was a problem that the gap between the rotor (32) and the stator (31) temporarily changed during the process of vibrating the back panel (11), causing the rotor (32) to collide with the stator (31) or causing unnecessary vibration and noise.

Furthermore, in the case where the driving unit (3) further includes the reducer (37), the rotational shaft (33) coupled to the reducer (37) and the reduction shaft (33a) connected from the reducer (37) to the drum (2) exist separately from each other. At this time, since the reducer (37) is supported on the back panel (11) through the stator (31) or the rotational shaft (33), if the back panel (11) is deformed even slightly, a problem may occur in which the reduction shaft (33a) and the rotational shaft (33) become twisted or misaligned.

In other words, the reduction shaft (33a) connected to the drum (33) may have a smaller change in position than the rotation shaft (33) connected to the driving unit (3) due to the load of the drum (33). Therefore, when the back panel (11) is temporarily bent or deformed, the degree to which the rotation shaft (33) and the reduction shaft (33a) are tilted becomes different, and the rotation shaft (33) and the reduction shaft (33a) are misaligned.

Therefore, the conventional clothing treatment device had a problem in that, whenever the driving unit (33) was operated, the rotation shaft (33) and the reduction shaft (33a) were misaligned, which made it impossible to guarantee the reliability of the reducer (37), and there was a risk of the reducer (37) being damaged.

Therefore, the dryers previously mentioned had a fundamental limitation in that they were only disclosed as patent documents and could not be applied and released as actual products.

To prevent such problems from occurring, conventional dryers on the market are equipped to fix the driving unit (3) to the bottom surface of the cabinet (1). [Refer to Korean Patent Publication No. 10-2019-0121656]

Figure 2 illustrates a dryer in which the driving unit (3) is fixed to the floor surface or base of the cabinet (1).

The above dryer includes a cabinet (1) and a drum (2), and may include a circulation path (5) for circulating air of the drum (2) to the outside, and a heat pump (6) received in the circulation path (5) for condensing and reheating the air. Water condensed in the heat pump (6) may be collected in a water storage tank (9) using a pump (8).

Meanwhile, even if the driving unit (3) vibrates or a temporary external force is transmitted through the driving unit (3), the bottom surface (12) of the cabinet (1) can be prevented from being deformed or tilted.

Accordingly, the conventional dryer is equipped with the driving unit (3) fixed to the bottom surface (12) of the cabinet (1) or a base fixed to the bottom surface of the cabinet (1) from below the drum (2). Since the driving unit (3) of this dryer is not arranged parallel to the rotational axis of the drum (2), a separate configuration is additionally used to rotate the drum (2).

Specifically, the driving unit (3) may include a motor unit (34) fixed to the bottom of the cabinet (1), a rotation shaft (37) that rotates on the motor unit (34), a pulley (35) that rotates by the rotation shaft (37), and a belt (36) that is provided to connect the outer surface of the drum (2) and the outer surface of the pulley (35).

Accordingly, when the motor part (34) rotates the rotation shaft (37), the pulley (35) rotates the belt (36), and the belt (36) can rotate the drum (2). At this time, since the diameter of the pulley (35) is much smaller than the diameter of the drum (2), the dryer can omit a reducer.

However, since the diameter of the pulley (35) of such a dryer is much smaller than the diameter of the drum (2), when the motor unit (34) rotates quickly, a slipping phenomenon occurs in which the belt (36) slips on the drum (2) or the pulley (35). Therefore, such a dryer has a problem in that the rotational acceleration of the motor unit (34) is limited to a certain level or less, and there is a fundamental limitation in that the motor unit (34) must be slowly accelerated or decelerated so that the belt (36) does not slip when rotating the drum (2).

Therefore, the conventional dryer may not be able to quickly change the rotation direction of the drum (2), making it impossible to control the rotation of the drum (2), or it may be impossible to change the rotation direction of the drum (2).

Accordingly, the dryer had a limitation in that it could not control the rotation direction and rotation speed of the drum (2) as intended during the drying process, and thus could not maximize drying efficiency.

The present invention aims to provide a clothes treatment device capable of maintaining a rotational shaft of a motor that provides rotational power to rotate a drum and a reducer that converts the rpm and torque of the rotational power.

The present invention aims to solve the problem of providing a garment treatment device in which a reducer and a motor can tilt or vibrate simultaneously.

The present invention aims to solve the problem of providing a clothes treatment device in which a reducer and a motor can be fixed apart from each other on the back of a cabinet.

The present invention aims to solve the problem of providing a clothes treatment device in which the rotational shaft of the drum and the driving shaft of the driving unit are arranged or fixed relative to a reducer.

The present invention aims to solve the problem of providing a garment treatment device in which a reducer is fixed inside the cabinet and the driving part is fixed to and supported by the reducer.

The present invention aims to solve the problem of providing a clothes treatment device in which a drive shaft extending from a motor and rotating, and a rotational shaft of a reducer that rotates by converting the rpm and torque of the rotational shaft can be maintained coaxially.

The present invention aims to provide a clothes treatment device capable of controlling the rotation speed and rotation direction of a drum even without a tub.

The present invention aims to solve the problem of providing a clothing treatment device capable of firmly fixing a reducer.

The present invention aims to solve the problem of providing a clothes treatment device in which the gap between the rotor and the stator in the motor can be maintained.

The present invention provides a garment treatment device having a motor unit that provides power to rotate a drum and a reducer that converts the power of the motor unit.

The above motor section can be directly coupled to and supported by the reducer, or can be coupled to and supported only by the reducer. Accordingly, the reducer itself can become a vibration reference for the motor section.

A stator that generates a rotating magnetic field from the motor section can be fixedly coupled to a housing forming the exterior of the reducer.

The above reduction gear housing may be supported by being coupled to a rear cabinet coupled to the rear surface of the drum. However, the stator may be separately disposed in the rear cabinet and may be provided spaced apart from the rear cabinet.

The above-described reducer housing can be inserted at least partially into the internal space of the stator and can be accommodated and arranged in the stator. As a result, the space occupied independently by the reducer can be reduced by utilizing the internal space of the stator.

In addition, since the stator is directly coupled to the reducer housing and the reducer housing is positioned inside the stator, the center of the rotor rotated by the stator and the center of the reducer can be easily aligned.

As a result, in the garment treatment device of the present invention, the drum, the reducer, the stator, and the rotor can form a single vibration system. The reducer can be coupled to the stator, and the reducer can be connected to the drum. Therefore, the reducer, the stator, and the drum can form an integral vibration system.

The above drum, stator and rotor can be separated and spaced in the rear cabinet.

That is, the drum, stator, and rotor can be tilted in parallel around the reducer and vibrate together.

The above-mentioned reducer can serve as an operating point of a lever or a seesaw in the above-mentioned vibration system, and since the reducer is supported by the above-mentioned rear cabinet, the above-mentioned rear cabinet can serve as the operating point.

Meanwhile, the drum may be provided with a flexible material so that its shape can be changed to some extent, and may be provided with an elastic material so that its shape can be restored. In addition, a connecting shaft connecting the drum and the reducer may also be provided with a portion of a flexible material.

In this case, the drum can move independently by forming a vibration system with the reducer and the stator/rotor. Accordingly, when a severe imbalance occurs inside the drum or excessive vibration occurs inside the drum, external force can be prevented from being transmitted to the stator and the motor unit.

Meanwhile, the reducer and motor can be separated from the outer cover (back panel) and vibration point of view.

That is, the above-mentioned reducer and motor can be placed spaced apart from each other on the back panel of the cabinet.

In other words, the reducer and motor are fixed and coupled to each other, but can be completely separated from the back panel.

Of course, the above-mentioned reducer and motor may be supported by at least contacting the back panel while coupled to each other, but may not be coupled to the back panel by a fixing member or the like.

Therefore, the reducer and the motor can be maintained coaxially only with respect to the reducer without being affected by shape change or vibration of the back panel.

That is, the entire drivetrain can remain coaxial, or can tilt or oscillate together.

Specifically, the reducer and the motor can be fixed to each other to maximize the concentricity of the rotor shaft and drum shaft of the dual-axis reducer.

If concentricity is not formed, not only will the reliability of the reducer itself be significantly reduced, but the gap between the stator and the rotor will not be maintained constant, which may cause unnecessary noise and vibration.

Therefore, by coupling the stator to the reducer housing, the reducer can become a reference for coupling, and the reducer center and the stator center can be aligned. As a result, the reliability of the reducer can be guaranteed. In addition, the concentricity of the drum shaft and the rotor shaft can be maintained, so that the gap between the rotor and the stator can always be maintained.

The present invention has the effect of maintaining a rotational shaft of a motor that provides rotational power to rotate a drum and a reducer that converts the rpm and torque of the rotational power.

The present invention has the effect of allowing the reducer and the motor to tilt or vibrate simultaneously.

The present invention has the effect that the reducer and the motor can be fixed apart from each other on the back of the cabinet.

The present invention has the effect of providing a clothing treatment device in which the rotational shaft of the drum and the driving shaft of the driving unit are arranged or fixed relative to the reducer.

The present invention has the effect that the reducer is fixed inside the cabinet and the driving part can be fixed and supported by the reducer.

The present invention has the effect of allowing a drive shaft extending from a motor and rotating, and a rotational shaft of a reducer rotating by converting the rpm and torque of the rotational shaft to maintain coaxiality.

The present invention has the effect of controlling the rotation speed and rotation direction of a drum in a clothing treatment device that omits a tub.

The present invention has the effect of firmly fixing a reducer.

The present invention has the effect of maintaining the gap between the rotor and the stator in a motor.

Figure 1 illustrates one embodiment of a conventional clothing treatment device.
Figure 2 illustrates another embodiment of a conventional clothing treatment device.
Figure 3 illustrates the appearance of the clothing treatment device of the present invention.
Figure 4 illustrates the interior of the clothing treatment device of the present invention.
Figure 5 illustrates the drum configuration of the clothing treatment device of the present invention.
Figure 6 illustrates the internal configuration of the clothing treatment device of the present invention.
Figure 7 illustrates an embodiment of supporting a drum of a garment treatment device of the present invention.
Figure 8 illustrates the rear case structure of the clothing treatment device of the present invention.
Figure 9 illustrates the combined structure of a reducer and a motor unit in the clothing treatment device of the present invention.
Figure 10 illustrates a reducer of the clothing treatment device of the present invention.
Figure 11 illustrates the process of coupling a motor unit to a reducer of a garment treatment device of the present invention.
Figure 12 illustrates the completion of the combination of the reducer and the motor unit in the clothing treatment device of the present invention.
Figure 13 illustrates a structure in which a reducer of the garment treatment device of the present invention is coupled to a rear case.
Figure 14 illustrates the bracket structure of the clothing treatment device of the present invention.
Figure 15 illustrates a structure in which the above bracket is connected to a reducer.
Figure 16 illustrates a structure in which the above bracket is connected to a rear case.
Figure 17 illustrates a structure in which the bracket fixes the reducer to the rear case.
Figure 18 illustrates the internal configuration of the driving unit of the clothing treatment device of the present invention.

Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. In this specification, identical or similar reference numerals are given to identical or similar components in different embodiments, and their descriptions are replaced with the first description. The singular expression used in this specification includes plural expressions unless the context clearly indicates otherwise. In addition, when describing the embodiments disclosed in this specification, if it is determined that a specific description of a related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, it should be noted that the attached drawings are only intended to facilitate easy understanding of the embodiments disclosed in this specification, and that the technical ideas disclosed in this specification should not be construed as being limited by the attached drawings.

Figure 3 illustrates the appearance of the clothing treatment device (10) of the present invention.

A garment treatment device according to one embodiment of the present invention may include a cabinet (100) forming an exterior.

The cabinet (100) may include a front panel (110) forming the front surface of the garment treatment device, and the front panel (110) may be provided with an inlet (111) that is provided to communicate with a drum (200) described below, and a door (130) that is rotatably coupled to the cabinet and opens and closes the inlet (111).

A control panel (117) may be installed on the front panel (110). The control panel (117) may be equipped with an input unit (118) for receiving a control command from a user, and a display unit (119) for outputting information such as a control command that can be selected by the user. The control command may include a drying course or drying option that can perform a series of drying operations. A main control unit that controls a command for performing the drying course or drying option may be installed on the control panel (177).

The above input unit (118) may be provided to include a power supply request unit that requests power supply to the clothing treatment device, a course input unit that allows the user to select a desired course from among a number of courses, and an execution request unit that requests the start of a course selected by the user.

The above display unit (119) may be provided to include at least one of a display panel capable of outputting text and shapes, and a speaker capable of outputting voice signals and sounds.

Meanwhile, the clothing treatment device of the present invention may include a water storage unit (7) provided to separately store moisture generated during the process of drying the clothing. The water storage unit (7) may include a water storage tank provided so as to be withdrawn to the outside from one side of the front panel (110). The water storage tank may be provided to collect condensed water delivered from a washing pump described later. Accordingly, a user may withdraw the water storage tank from the cabinet (1), remove the condensed water, and then install it back in the cabinet (100). Accordingly, the clothing treatment device of the present invention may be placed in any location where a drain or the like is not installed.

Meanwhile, the water storage unit (7) may be placed on the upper part of the door (130). This allows the user to bend his/her waist relatively less when withdrawing the water storage tank from the front panel (110).

Meanwhile, the clothing treatment device of the present invention may further include a steam unit (195) capable of supplying steam to the inside of the clothing or cabinet. The steam unit (195) may be provided to generate steam with condensed water discharged from the clothing, or may be provided to generate steam by receiving fresh water instead of the condensed water. The steam unit (195) may generate steam by heating the water, using ultrasonic waves, or vaporizing the water.

Since the above steam unit (195) is provided to generate steam by receiving a certain amount of water, it can occupy a certain volume. At this time, a door and a control panel (117) can be installed on the front panel (110) of the cabinet, and a duct and a water supply unit for supplying or discharging air to the drum can be installed on the back panel (120) of the cabinet, so it may be advantageous for the steam unit (195) to be installed on the inside of the side panel (140) of the cabinet.

In addition, the clothing treatment device of the present invention may include a steam control unit (800) that is provided to separately control the steam unit (195). The steam control unit (800) may be installed in the control inner panel (117), but may be provided as a separate control panel to prevent overload of the control panel (117) and not increase the production cost.

The above steam control unit (800) may be provided adjacent to the steam unit (195). The steam control unit (800) may be provided on the side panel (140) where the steam unit (195) is installed, thereby reducing the length of the control line, etc. connected to the steam unit (195).

Since the above steam unit (195) supplies steam that can come into contact with the clothing, it is preferable to generate steam using fresh water. Since the water collected in the water storage unit (7) is generated from clothing, there is a high possibility that it contains lint or foreign substances, and thus it may not be suitable for generating the steam.

Accordingly, the clothing treatment device of the present invention may include a water supply unit (160) that supplies water to the steam unit (195) and is provided separately from the water storage unit (7). The water supply unit (160) may be provided to store fresh water or to receive fresh water from an external source and supply it to the steam unit (195).

For example, the water supply unit (160) may include an external supply unit (180) that can supply water from an external water source and deliver it to the steam unit (195), and an internal supply unit (170) that can separately store fresh water and supply it to the steam unit (195).

The internal supply unit (170) may include a water tank (171) that is provided separately from the water storage unit (7) and can store fresh water. The water tank (171) and the steam unit (195) may be provided with a difference in installation height so that water in the water tank (171) is supplied to the steam unit (195) by its own weight.

In cases where the difference in installation height between the water tank (171) and the steam unit (195) cannot be secured, it may be desirable to additionally install the water pump (172). In addition, when the water pump (430) is placed, there is an advantage in that the space inside the cabinet (1) can be utilized more densely.

Accordingly, the water supply unit (160) may further include a water pump (172) provided to supply water from the water tank (171) to the steam unit (195), and a tank housing (173) that places the water tank (171) and the water pump (172) inside the cabinet.

The above external supply unit (180) may include a direct water valve that is connected to the external water source and can supply water.

In addition, the clothing treatment device of the present invention may further include a decision unit (196) that determines which of the external supply unit (180) and the internal supply unit (170) to use preferentially to supply water to the steam unit (195).

The above decision unit (196) may be equipped to determine which of the external supply unit (500) and the internal supply unit (400) to use first.

Meanwhile, the water tank (171) may be provided to store fresh water. It is preferable that the water tank (171) be provided to be exposed to the outside of the cabinet (100) so that fresh water can be filled at any time.

Meanwhile, the water tank (171) may be provided to be withdrawn from the cabinet (100). Accordingly, a user can simply fill water by withdrawing the water tank (171) from the cabinet (100).

The water tank (171) may be provided so as to be withdrawn through the front panel (110). However, if the water storage tank is also provided so as to be withdrawn through the front panel (110), it may be difficult to secure an area for withdrawing the water tank (171) due to the area occupied by the control panel (117) on the front panel (110).

Accordingly, the water tank (171) is provided to be withdrawn to the upper panel (130), so that interference with the control panel (117) can be prevented.

From another perspective, since the water tank (171) is also provided to store water and the water storage unit (7) is also provided to store water, the user may be confused. To this end, the clothing treatment device of the present invention may be provided so that the water tank (171) and the water storage unit (7) are exposed in different directions or positions in the cabinet.

Accordingly, the water tank (171) may be provided to be exposed to the upper panel (130), and the water reservoir (7) may be provided to be exposed to the front panel (11). Accordingly, even if both the water tank (171) and the water reservoir (7) are provided, it is possible to prevent a user from confusing the water tank (171) and the water reservoir (7). In addition, the water tank (171) must store fresh water, and the freshness of the stored water must be maintained, so it may have a relatively smaller volume than the water reservoir (7). Therefore, the user can distinguish the water tank (171) and the water reservoir (7) by the difference in volume.

Since the water tank (171) has a smaller volume than the water reservoir (7), it can be easily withdrawn upward. Accordingly, the water tank (171) can be provided so that it can be withdrawn upward from the upper panel (130). As a result, since the withdrawal directions of the water tank (171) and the water reservoir (7) are different from each other, the possibility of confusion by the user can be further reduced.

The upper panel (130) of the garment treatment device of the present invention may include a tank withdrawal hole or withdrawal hole (131) provided so that the water tank (171) can be exposed to the outside or the water tank (171) can be withdrawn to the outside of the cabinet. The tank withdrawal hole (131) may be provided to have a cross-sectional area corresponding to the cross-sectional area of the water tank (171) or slightly larger than the area of the water tank (171).

The upper panel (130) may further include a withdrawal cover (132) that is provided to shield the tank withdrawal hole (131) and prevent the water tank (171) from being withdrawn arbitrarily.

The clothing treatment device of the present invention may further include a filter capable of removing foreign substances from a circulating circulation path. The front panel (110) may be provided with a filter mounting hole (113) through which the filter is withdrawn or inserted.

Figure 4 illustrates the interior of the clothing treatment device of the present invention.

The clothing treatment device of the present invention may include a drum (200) accommodated inside the cabinet (100) to accommodate clothing, a driving unit (M) that rotates the drum (200), and a hot air supply unit (900) provided to supply hot air to the drum (200).

The drum (200) may be provided in a cylindrical shape so as to be able to accommodate clothing. In addition, since there is no need to inject water into the drum (200) and there is no need to discharge water condensed inside the drum (200) to the outside, the drum (200) may omit the through hole provided along the circumference.

The above driving unit (M) may be provided so as to be directly connected to the drum (200) so as to rotate the drum (200). For example, the driving unit (M) may be provided as a DD (Direct Drive unit) type. Accordingly, the driving unit (M) can control the rotational direction of the drum (200) or the rotational speed of the drum (200) by directly rotating the drum (200) without the need for a belt and pulley, etc.

Typically, in the case of a DD type washing machine, the driving unit (M) is fixedly coupled to a tub that accommodates the drum (200), and the drum (200) can be supported by the tub by being coupled to the driving unit (M). However, since the clothes treatment device of the present invention is equipped to intensively perform a drying cycle, the tub fixed to the cabinet (100) to accommodate the drum (200) is omitted.

Accordingly, the garment treatment device of the present invention may further include a support member (400) provided to fix or support the drum (200) or the driving member (M) inside the cabinet (100).

The above support member (400) may include a front case (410) arranged in front of the drum (200) and a rear case (420) arranged in the rear of the drum (200). The front case (410) and the rear case (420) may be provided in a plate shape and arranged to face the front and rear of the drum (200). The gap between the front case (410) and the rear case (420) may be set to be equal to the length of the drum (200) or longer than the length of the drum (200). The front case (410) and the rear case (420) may be fixed and supported on the bottom surface of the cabinet (100) or the hot air supply unit (900) described below.

Since the input port of the drum (200) is positioned at the front, it is preferable that the driving unit (M) be installed in the rear case (420) rather than the front case. The rear case (420) may be provided so that the driving unit (M) is mounted and supported in an area facing the back surface of the drum (200). Accordingly, the driving unit (M) may be provided to rotate the drum (200) while its position is stably fixed through the rear case (420).

At least one of the front case (410) and the rear case (420) can rotatably support the drum (200). At least one of the front case (410) and the rear case (420) can rotatably accommodate the front or rear end of the drum (200).

For example, the front of the drum (200) may be rotatably supported by being accommodated in the front case (410), and the rear of the drum (200) may be spaced apart from the rear case (420) but connected to the driving unit (M) mounted on the rear case (420) so as to be indirectly supported by the rear case (420). As a result, the area where the drum (200) comes into contact with or rubs against the support unit (400) can be minimized, and unnecessary noise or vibration can be prevented from occurring.

Of course, the drum (200) may be provided to be rotatably supported by both the front case (410) and the rear case (420).

The above hot air supply unit (900) can form a circulation path that discharges air inside the drum (200) to the outside and introduces it into the drum (200), and can dry clothes contained in the drum (200) by heating the circulating air or condensing moisture in the circulating air.

The hot air supply unit (900) is preferably positioned at the bottom of the drum (200) so that the inlet of the drum (200) is positioned at a relatively high position so that the user can easily take out clothing located inside the drum (200).

The above hot air supply unit (900) may be equipped with a plurality of heat exchangers that cool or heat the air flowing inside, and a cleaning unit (940) that removes foreign substances attached to the heat exchanger using condensate condensed from the air may be installed.

The above hot air supply unit (900) may be provided to receive air inside the drum (200) through the front case (410) and discharge the air toward the rear case (420).

The rear case (420) may be combined with a duct cover (430) that guides the hot air supplied from the hot air supply unit (900) to the rear surface of the drum (200). The duct cover (430) may be provided to expose the driving unit (M) to the outside and may be provided to cool the driving unit (M). The cabinet (100) may further include a back panel (120) that prevents the duct cover (430) and the driving unit (M) from being exposed to the outside, thereby preventing safety accidents.

Meanwhile, if the back panel (120) is omitted, the rear case (420) may form the back of the cabinet.

Figure 5 illustrates a drum of the clothing treatment device of the present invention.

The drum (200) of the clothing treatment device of the present invention is not rotated indirectly by being coupled to a belt or the like, but is directly coupled to the driving unit (M) and rotated. Therefore, unlike the drum of a conventional dryer which is provided in a cylindrical shape with the front and rear open, the drum (200) of the clothing treatment device of the present invention is provided so that the rear is shielded and directly coupled to the driving unit (M).

Specifically, the drum (200) may include a drum body (210) having a cylindrical shape for accommodating clothing, and a drum back surface (220) coupled to the rear of the drum body (210) to form the back surface of the drum.

The drum back surface (220) may be provided to shield the rear of the drum body (210) and provide a space directly coupled with the driving unit (M). That is, the drum back surface (220) may be provided to be connected to the driving unit (M) and directly receive power to rotate the drum body (210). As a result, an input port (211) for inserting clothes may be formed at the front of the drum body (210) and the rear may be shielded by the drum back surface (220).

The drum back surface (220) may be provided with a bushing (300) that can be coupled to the driving unit (M). The bushing (300) may be provided on the drum back surface (220) to form a center of rotation of the drum (200). The bushing (300) may be provided integrally with the drum back surface (220), but may be provided with a material that has greater rigidity or durability than the drum back surface (220) in order to be firmly coupled with the rotational shaft extending from the driving unit (M). The bushing (300) may be coupled by being seated at the exact center of the drum back surface (220).

The drum back surface (220) may include a peripheral portion (221) coupled to the outer surface of the drum body (210) and a mounting plate (222) provided on the inner side of the peripheral portion (221) and capable of being coupled to the driving unit (M). The mounting plate (222) may include a through hole through which the bushing portion (300) may be accommodated by being seated.

Between the above circumference (221) and the mounting plate (222), a suction hole (224) may be arranged to guide hot air supplied from the hot air supply unit (900) into the inside of the drum body (210). The suction hole (224) may be provided as a plurality of holes that penetrate the drum back surface (220) or may be provided as a mesh-shaped net.

In order to prevent the rigidity of the drum back surface (220) from being reduced due to the suction hole (224), a reinforcing rib (225) for reinforcing the rigidity of the drum back surface (220) may be further provided. The reinforcing rib (225) may be provided to extend radially from the outer peripheral surface of the mounting plate (222) toward the inner peripheral surface of the peripheral portion (221). In addition, a circumferential rib (226) may be further provided to extend in the peripheral direction of the drum back surface (220) so as to connect the reinforcing ribs (225) to each other. The suction holes (224) can be arranged between the reinforcing ribs (225), the circumferential ribs (226), the mounting plate (222), and the peripheral portion (221), and even if the drum back surface (220) receives rotational force transmitted from the driving unit (M) due to the reinforcing ribs (225) and the circumferential ribs (226), the shape can be maintained.

Meanwhile, one or more reinforcing beads (212) may be provided on the outer surface of the drum body (210) to reinforce the rigidity of the drum body (210). The reinforcing beads (212) may be provided to be sunken or protruded inwardly or outwardly along the perimeter of the drum body (210), and may be arranged in multiple pieces spaced apart from each other along the longitudinal direction of the drum body (210).

Accordingly, even if a large amount of clothing is accommodated in the drum body (210) or a sudden rotational force is transmitted through the driving unit (M), the drum body (210) can be prevented from twisting.

As a result, the drum (200) of the garment treatment device of the present invention can be rotated not by a belt or the like, but by the drum back surface (220) being directly coupled to the driving unit (M).

Accordingly, even if the driving unit (M) changes the direction of rotation or the rotational acceleration is large, the drum (200) of the clothing treatment device of the present invention can immediately reflect this and rotate.

Figure 6 illustrates the internal configuration of the clothing treatment device of the present invention.

As described above, the drum (200) may include a drum body (210) that is provided in a cylindrical shape and is provided with the front and rear sides open, and a drum back surface (220) that is coupled to the rear of the drum body (210) and provided to shield the rear of the drum body (210).

A rotation shaft extending from the driving unit (M) can be directly coupled to the above bushing portion (300).

The front case (410) may include a front plate (411) forming a main body, and an input communication hole (412) penetrating the front plate (411) to accommodate the front of the drum body (210) or the input port (211). A gasket (413) for accommodating the drum body (210) may be provided on the outer circumference of the input communication hole (412).

The gasket (413) can rotatably support the inlet (211) of the drum body (210) and can be provided so as to be in contact with the outer surface of the inlet (211). The gasket (413) can prevent hot air inside the drum (200) from leaking between the drum body (210) and the front plate (411). The gasket (413) can be provided with a plastic resin series or an elastic body, and a separate sealing member can be additionally bonded to the inner surface of the gasket (413) to prevent clothing or hot air from escaping from the inlet (211) of the drum body (210) to the front plate (411).

Meanwhile, a duct communication hole (419) may be formed on the inner surface of the gasket (413) or the inlet communication hole (412) to communicate with the drum body (210) and to discharge the air supplied to the drum body (210). A path connecting the duct communication hole (419) and the hot air supply unit (900) may be installed inside the front plate (411). Accordingly, the duct communication hole (419) may guide the air discharged from the drum body (210) to be supplied to the hot air supply unit (900).

A filter member may be installed in the above duct communication hole (419) to block foreign substances or lint discharged from the drum (200) from being fed into the hot air supply unit (900).

The front case (410) may be provided so as to be in contact with the outer surface of the drum body (210) and may be provided with a front wheel (415) that rotatably supports the drum (200). The front wheel (415) may be provided so as to support the outer surface of the inlet of the drum body (210), and may be provided in multiple pieces spaced apart from each other along the outer surface of the inlet communication hole (412). The front wheel (415) may be provided so as to support the lower portion of the drum body (210) and rotate together when the drum (200) rotates.

In addition, the front case (410) may be combined with a stopper (500) that prevents the drum body (210) from being detached. The stopper (500) may be placed in a stopper installation part (416) that is placed above the input communication hole (412) in the front case (410).

The front case (410) may be provided with a tank support hole (414) through which the water tank of the water tank (7) may be withdrawn or supported. The tank support hole (414) may be installed in an area corresponding to the portion of the front panel (110) where the water tank (7) is placed, and may be formed by penetrating the front case (410).

A cutout (417) that can be supported by the hot air supply unit (900) may be provided at the lower portion of the front case (410). Due to the cutout (417), the front case (410) can be prevented from interfering with the hot air supply unit (900). The cutout (417) is provided to communicate with the supply duct of the hot air supply unit (900), so that air inside the drum supplied to the duct communication hole (419) can be delivered to the hot air supply unit (900).

The hot air supply unit (900) may include a circulation path (920) through which air discharged from the drum (200) may circulate. The circulation path (920) may be provided in a duct shape arranged on the outside of the drum (200). The circulation path (920) may include a supply duct (921) communicating with the duct communication hole (419) to supply air from the drum (200), a moving duct (922) through which air supplied from the supply duct (921) moves, and an exhaust duct (923) through which air passing through the moving duct (922) is discharged.

The above supply duct (921) may be provided to communicate with the cutout (417) of the front case (410) and the flow path installed inside the front case (410). The above moving duct (922) may be provided to extend from the end of the supply duct (921) toward the rear of the drum (200), and the above exhaust duct (923) may be provided at the end of the above moving duct (922) to guide the air to the drum (200).

Meanwhile, the hot air supply unit (900) may have a heat pump (950) installed therein capable of cooling and heating air. The heat pump (950) may include an evaporator (951) installed inside the moving duct (922) to cool the air and condense moisture contained in the air, and a condenser (952) disposed downstream of the evaporator (951) or spaced apart from the exhaust duct (923) to reheat the air. The heat pump (950) may further include an expansion valve that cools the refrigerant that has passed through the condenser (952) and guides it back to the evaporator (951), and a compressor (953) that pressurizes and heats the refrigerant that has passed through the evaporator (951) and supplies it to the condenser (952). The compressor (953) may be disposed outside the moving duct (922).

The above evaporator (951) and the above condenser (952) may be equipped with a heat exchanger through which refrigerant flows.

The hot air supply unit (900) may further include a connector (930) that is connected to the discharge duct (923) to guide the hot air to the rear of the drum (200) or the duct cover (430). The connector (930) may be arranged at the upper portion of the discharge duct (923) to guide the hot air heated by passing through the condenser (952) to the rear of the discharge duct (923).

Meanwhile, the hot air supply unit (900) may further include a blower fan (9531) that can move air inside the drum (200) to the supply duct (921) or inject air that has passed through the discharge duct (923) into the drum (200). The blower fan (9531) may be installed inside the discharge duct (923) and may be controlled by the main control unit together with the driving unit (M).

The rear case (420) may include a rear plate (421) that is provided to face the front plate (411). The rear case (420) may include a mounting portion (429) to which the driving portion (M) is coupled and mounted. The mounting portion (429) may be provided to penetrate the rear case (420), and the driving portion (M) may be mounted on the mounting portion (429) and fixed inside the cabinet (100). The mounting portion (429) supports the load of the driving portion (M) and may install the driving portion (M) at a position corresponding to the drum back surface (220).

Meanwhile, the rear plate (421) may be further formed with an air movement hole (423) that communicates with the connector (930) to allow air to flow in, and a communication hole (424) that discharges air passing through the air movement hole (423) to the back surface (220) of the drum.

A duct cover (430) that forms a path that can move air introduced through the connector (930) to the suction hole (224) provided on the rear surface (220) of the drum can be combined on the back surface of the above rear plate (421).

The above duct cover (430) may be provided to be coupled to the rear plate (421) but spaced apart from the suction hole (224) to form a space through which the air moves between the rear plate (421) and the duct cover (430).

The above duct cover (430) may be arranged to shield the communication holes (424) so that not all of the communication holes (424) are exposed to the outside. As a result, air introduced into the duct cover (430) may be completely discharged through the communication holes (424) and prevented from leaking to the outside. The duct cover (430) may be spaced apart from the outer surface of the driving unit (M) to prevent interference with the driving unit (M) and accommodate the driving unit (M), but may expose the driving unit (M) to the outside to induce cooling of the driving unit (M).

Meanwhile, the duct cover (430) may be heated by the hot air, and the driving unit (M) may also have a rotating rotor, so a back plate (120) may be placed at the rear of the duct cover (430) to shield it. The back plate (120) may be coupled to the rear case (420) to block the duct cover (430) and the driving unit (M) from being exposed to the outside. It may be placed apart from the duct cover (430) and the driving unit (M).

The above driving unit (M) may include a motor unit (600) that provides power to rotate the drum (200). The motor unit (600) may include a stator (610) that generates a rotating magnetic field and a rotor (620) that is provided to rotate by the stator (610).

The above rotor (620) may be provided as an outer rotor type that accommodates the stator (610) and is configured to rotate around the circumference of the stator (610). At this time, the rotor (620) may be coupled with a rotation shaft that penetrates the stator (610) and the mounting portion (429) and may be directly connected to the drum (200). In this case, the rotor (620) may directly transmit power to rotate the drum (200).

Meanwhile, the rotor (620) can be rotated at a high RPM by the stator (610). For example, it can be rotated at a much higher RPM than the RPM at which clothes inside the drum (200) can be rotated while attached to the inner wall of the drum (200).

However, there is a problem that the drying efficiency decreases because the clothes inside the drum (200) are continuously attached to the inner wall of the drum (200) and rotate, and the part attached to the inner wall of the drum is not exposed to hot air.

If the rotor (620) is rotated at a low RPM so that the clothes inside the drum (200) roll or are stirred without being attached to the inner wall of the drum (200), a problem may occur in which the output or torque that the driving unit (M) can generate is not properly utilized.

Accordingly, the driving unit (M) of the clothing treatment device of the present invention may further include a reducer (700) that can increase torque while utilizing the maximum output of the motor unit (600) by reducing the RPM.

The above reducer (700) may be provided to connect the motor unit (600) and the drum (200). The reducer (700) may convert the power of the motor unit (600) to rotate the drum (200). The reducer (700) may be arranged between the motor unit (600) and the drum (200) to receive the power of the motor unit (600), convert it, and transmit it to the drum (200). The reducer (700) may be provided to convert the RPM of the rotor into a small RPM, increase the torque value, and transmit it to the drum (200).

Specifically, the reducer (700) may be coupled with a drive shaft (630) that extends from the rotor section (610) and rotates together with the rotor section (610). The reducer (700) includes a gearbox that is internally engaged with the drive shaft (630) to rotate and change the rpm of the drive shaft (630) while increasing the torque, and the gearbox is connected to a rotational shaft (740) that is coupled to the drum (200) and rotates the drum. Therefore, when the drive shaft (630) rotates, the rotational shaft (740) may rotate at a slower rpm than the drive shaft (630) but may rotate at a greater torque.

The performance of this reducer (700) is determined by whether the drive shaft (630) and the rotation shaft (740) can maintain coaxiality. That is, if the drive shaft (630) and the rotation shaft (740) are misaligned with each other, there is a risk that the components constituting the gearbox inside the reducer (700) may loosen or become uncoupled from at least one of the drive shaft (630) and the rotation shaft (740). Accordingly, the power of the drive shaft (630) may not be properly transmitted to the rotation shaft (740), or the drive shaft (630) may become useless.

In addition, if the drive shaft (630) and the rotation shaft (740) are misaligned even temporarily, the gear boxes inside the reducer (700) may misalign with each other and collide, causing unnecessary vibration or noise.

In addition, if the angle at which the drive shaft (630) and the rotation shaft (740) are misaligned becomes severe, even temporarily, there is a risk that the gearbox inside the reducer (700) may completely move out of its original position or be damaged.

As a result, if the driving shaft (630) and the rotating shaft (740) do not maintain coaxiality with each other or are not arranged in parallel even temporarily, the performance of the reducer (700) cannot be guaranteed and a problem may occur in which the drum (200) cannot be rotated as intended.

To this end, garment treatment devices equipped with a reducer usually fix the reducer and the motor unit to a support that maintains its original state without deformation even when an external force is applied.

For example, in the case of a washing machine, a method may be applied in which the tub accommodating the drum is first fixed to a cabinet, and then the motor unit and the reducer are secondarily fixed to a bearing housing made of a rigid body that is built into the tub by injection molding. In addition, a method may be applied in which a fixed steel plate coupled to the tub is placed outside the tub, and the motor unit and the reducer are fixed to the fixed steel plate.

Accordingly, even if significant vibration occurs in the tub, the reducer and the driving member can tilt or vibrate together with the bearing housing or the fixed steel plate. As a result, the reducer and the driving member themselves can have the effect of always remaining coupled, and the driving shaft and the rotating shaft can be maintained in a coaxial state.

However, since the clothes treatment device of the present invention is equipped with a dryer, the configuration of the tub fixed inside the cabinet is omitted. In addition, the back panel (120) of the cabinet is equipped with a relatively thin plate, so even if the stator (610) is fixed, the back panel (120) can easily vibrate or bend due to the repulsive force when the rotor (620) rotates or the drive shaft (630) rotates. If the back panel (120) vibrates or bends even temporarily, the rotation shaft (740) and the drive shaft (630), which are arranged to be coupled with the drum (200), bend, so that a problem of the rotation shaft (740) and the drive shaft (630) being misaligned may occur.

In addition, since the back panel (120) is formed of a thin steel plate, it may be impossible to support both the reducer (700) and the motor unit (600). For example, if the reducer (700) and the motor unit (600) are coupled to the back panel (120) in parallel, a rotational moment may be generated due to the overall length and self-weight of the reducer (700) and the motor unit (600), causing the reducer (700) to sag downward. As a result, the rotational shaft (740) itself coupled to the drum may become misaligned with the reducer (700), and may not be able to be coaxial with the driving shaft (630).

Even, the back panel (120) may not be able to support the motor unit (600) itself. The back panel (120) may have a problem in that one side where the motor unit (600) is installed bends downward due to the weight of the motor unit (600). From the beginning, the back panel (120) may not have a configuration suitable for coupling the motor unit (600) itself.

Meanwhile, it may be considered that the stator (620) is coupled to the rear case (420) to support the motor unit (600). When a large amount of clothing is accommodated inside the drum (200) or eccentricity occurs, the rotational shaft (740) may be twisted along the arrangement of the clothing each time the drum (200) rotates. At this time, since the stator (610) is separated from the drum (200) and fixed to the rear case (420), the rotational shaft (740) may vibrate at a different width or tilt at a different angle from the stator (610). Therefore, the coaxiality of the rotational shaft (740) and the driving shaft (630) may not be maintained.

From another perspective, the drum (200) may be fixed at a certain level in a position supported by the front case (410) and the rear case (420) or installed by a stopper (500) described later. Accordingly, the position of the rotation shaft (740) coupled with the drum (200) may also be fixed at a certain level. Accordingly, even if vibration occurs in the drum (200), the vibration may be buffered by at least one of the front case (410) or the rear case (420) or the stopper (500).

However, if the vibration generated from the drum (200) is transmitted to the motor unit (600), even if the reducer (700) and the motor unit (600) are fixed to the rear case (420), the vibration amplitude of the motor unit (600) and the rear case (420) may be greater than the vibration amplitude of the rotation shaft (740). In this case, a problem may occur in which the drive shaft (630) and the rotation shaft (740) cannot maintain coaxiality.

To solve this problem, the clothing treatment device of the present invention can fix the motor unit (600) by coupling it to the reducer (700). In other words, the reducer (700) itself can serve as a reference point for the entire driving unit (M). That is, the reducer (700) can serve as a reference for the vibration and inclination angle amount of the entire driving unit (M).

Since the motor unit (600) is not fixed to other components of the garment treatment device but only to the reducer (700), when vibration or external force is transmitted to the driving unit (M), the motor unit (600) can always be tilted or vibrated simultaneously with the reducer (700) when the reducer (700) tilts or vibrates.

As a result, the reducer (700) and the driving unit (600) can form a single vibration system, and the reducer (700) and the driving unit (600) can be maintained in a fixed state without moving relative to each other.

Among the driving unit (600), the stator (610) can be directly connected to and fixed to the reducer (700). As a result, the position at which the driving shaft (630) is installed relative to the reducer (700) may not change. The center of the driving shaft (630) and the center of the reducer (700) may be arranged to coincide with each other, and the driving shaft (630) may rotate while maintaining the same axis as the center of the reducer (700).

The above-mentioned coaxiality and coincidence do not mean physically perfect coaxiality and coincidence, but rather a concept that allows a range of error that can be mechanically recognized or a range that can be recognized as coaxiality or coincidence by a person skilled in the art. For example, the range in which the driving shaft (630) and the rotating shaft (740) are misaligned by less than 5 degrees can be defined as a state of coaxiality or coincidence.

Since the above driving shaft (630) rotates relative to the reducer (700) but is fixed to prevent tilting, and the stator (610) is also fixed to the reducer (700), the gap between the stator (610) and the rotor (620) can always be maintained. As a result, collision between the stator (610) and the rotor (620) can be prevented, and noise or vibration that may occur due to the rotation center of the rotor (620) changing while rotating the stator (610) can be fundamentally blocked.

The above-described rotational shaft (740) is provided to extend toward the drum (200) within the reducer (700), and can vibrate together with the reducer (700) and tilt together with the reducer (700). That is, the rotational shaft (740) is provided to rotate in the reducer (700), and the installed position can be fixed. As a result, the rotational shaft (740) and the drive shaft (630) can always be arranged in parallel and form a coaxial structure. In other words, the center of the rotational shaft (740) and the center of the drive shaft (630) can be maintained in a state where they coincide with each other.

The above-described reducer (700) and the above-described motor unit (600) may be designed to be arranged along a first axis (S1) parallel to the ground when there is no load on the drum (200) or when the above-described motor unit (600) is not operating. The above-described driving shaft (630) and the above-described rotational shaft (740) may also be arranged parallel to the above-described first axis (S1).

However, when the drum (200) vibrates or the motor unit (600) vibrates, the vibration is transmitted to the reducer (700), causing the reducer (700) to vibrate or tilt, thereby temporarily causing the reducer (700) to tilt toward the second axis (S2).

At this time, since the motor part (600) is coupled to the reducer (700), it can vibrate or tilt together with the reducer (700) and be arranged parallel to the second axis (S2). Accordingly, the driving shaft (630) and the rotation shaft (740) can also be arranged parallel to the second axis (S2).

As a result, even if the reducer (700) is tilted, the motor unit (600) can move integrally with the reducer (700), and the driving shaft (630) and the rotation shaft (740) can maintain coaxiality.

Accordingly, since the driving shaft (630) and the rotation shaft (740) are always inclined with respect to the reducer (700), the reducer (700) can serve as the point of action (P1) of a lever or a seesaw. That is, the reducer (700) can serve as the first point of action (P1) of the vibration system including the motor unit (600). Meanwhile, since the reducer (700) is coupled to the drum (200) through the rotation shaft (740) and the drum (200) is spaced apart from the rear case (420), the load of the drum (200) can be transmitted to the reducer (700). The reducer (700) can form a single vibration system including not only the motor unit (600) but also the drum (200), and the reducer (700) can serve as a reference or operating point (p1) of the vibration system.

Even if the above-mentioned reducer (700) itself serves as the center or point of action (P1) of the vibration system, it must be fixed or supported inside the cabinet (100).

For this purpose, the reducer (700) may be coupled and fixed to the rear case (420). In this case, since the reducer (700) will tilt or vibrate while coupled to the rear case (420), it can be seen that the rear case (420) serves as the center of a vibration system including the reducer (700), the motor unit (600), and the drum (200). In this case as well, the motor unit (600) may not be directly coupled to the rear case (420) even though it may be in contact with it, but may be coupled and fixed only to the reducer (700).

Specifically, the mounting portion (429) of the rear case (420) can serve as a second operating point (P2) of a lever or seesaw formed by the reducer (700), the motor portion (600), and the drum (200).

The above-described reducer (700), the above-described motor unit (600), and the above-described drum (200) are arranged in parallel along the first axis (S1), and then the above-described reducer (700) can be arranged in parallel with the third axis (S3). The above-described third axis (S3) can pass through the reducer (700) coupled to the rear case (420). At this time, since the above-described reducer (700) and the above-described motor unit (600) are coupled, the above-described motor unit (600) can also be arranged in parallel with the third axis (S3).

Finally, the driving unit (600) and the drum (200) are coupled to the reducer (700), so that the driving unit (600) and the drum (200) can tilt parallel to each other or vibrate simultaneously with respect to the reducer (700).

The drum (200) of the garment treatment device of the present invention is not connected to a belt and is supported by the reducer (700). Therefore, when the drum (200) rotates by the reducer (700), it can be lifted upward or tilted downward by centrifugal force, etc.

To prevent this, the garment treatment device of the present invention may further include a stopper (500) that fixes the position of the drum (200). The stopper (500) may include a front stopper (510) positioned in front of the drum (200) and a rear stopper (520) positioned in the rear of the drum.

At this time, the drum (200) can be lifted upward based on the rotation axis (740). Accordingly, the front stopper (510) can be placed so as to be in contact with the front upper portion of the drum.

In addition, there is a risk that the drum (200) may sag downward due to the weight of clothing. Therefore, the rear stopper (520) may be positioned so as to be in contact with the rear lower portion of the drum (200).

The front stopper (510) can be coupled to the installation part (416) of the front case (410), and the rear stopper (520) can be supported on the upper part of the heat exchange part (900).

Figure 7 illustrates a stopper (500) supporting a drum (200) of the clothing treatment device of the present invention.

The above drum (200) is coupled to the free end of the rotation shaft (740) and rotates. The rotation shaft (740) can be fixed to the reducer (700) to prevent it from being misaligned with the reducer (700).

However, the drum (200) may be turned upward or downward due to the load of clothing or the falling of clothing that occurs during rotation. As a result, the drum (200) may be turned upward or downward based on the free end of the rotation shaft (740).

In particular, the drum (200) can vibrate or tilt independently based on the free end of the rotation shaft (470). That is, the drum (200) may be provided with a material having elasticity and may be provided with a material that allows a certain level of deformation. This is to prevent excessive vibration or external force from being transmitted to the rotation shaft (470) and to prevent the arrangement of the rotation shaft (470) and the drive shaft (630) from being distorted.

In addition, since the drum (200) is not fixed by a belt or the like, excessive vibration energy may be generated when it rotates while containing the clothing.

Meanwhile, the front case (410) and the rear case (420) are arranged at the front and rear of the drum (200). The front case (410) can avoid direct contact with the front surface of the drum (200) through the injection hole (412) and the gasket (413). However, since the rear surface of the drum (200) is directly coupled to the rotation shaft (740), the rear surface of the drum body (210) is shielded by the drum rear surface (220), and the rear case (420) must have a mounting part (429) that fixes the driving part (M) to a portion that directly faces the drum rear surface (220). In other words, the rear case (420) cannot have a surface facing the drum as a through hole like the front case (410).

Therefore, if the rear case (420) rotatably supports the rear or back surface of the drum (200) like the front case (410), there is a risk that the rear surface of the drum (220) and the rear case (420) may directly rub or collide.

Specifically, the rear case (420) has many parts that interfere with the drum back surface (220) due to the drum receiving groove (422), air movement hole (423), and mounting part (429) described later. In this situation, if the rear case (420) directly supports the drum (200), the drum back surface (220) and the rear case (420) may be worn or damaged.

Therefore, the rear case (420) needs to be maintained at a certain distance from the drum (200), and the rear case (420) itself may not be able to directly support the drum (200).

In addition, when the drum (200) is rotated by receiving a large amount of clothing, it can move and rotate in the direction of the front case (410) or the rear case (420) because there is no belt, etc.

Taking this into comprehensive consideration, the clothing treatment device of the present invention may further include a stopper (500) to limit the movement of the drum (200) within an allowed range.

The above stopper (500) may include a front stopper (510) coupled to the front case (410) to support the front upper portion of the drum, a support wheel (533) rotatably provided on the front case (410) to support the front lower portion of the drum, and a rear stopper (520) coupled to the rear case (420) to support the rear lower portion of the drum.

The drum (200) may be supported by the driving unit (M) and the support wheel (533) to rotate, and the front stopper (510) and the rear stopper (520) may be provided to limit the drum (200) from moving excessively only when it moves excessively. Accordingly, the front stopper (510) and the rear stopper (520) may buffer vibrations or temporarily occurring shocks of the drum (200), and prevent the front stopper (510) and the rear stopper (520) from damaging the drum (200).

Referring to FIG. 7(a), the front stopper (510) may include a fixed plate (5111) coupled to the stopper installation portion (416) of the front case (410), a lever plate (5112) extending rearwardly from the fixed plate (5111), an extension plate (5113) extending downwardly from the lever plate (5112), a support plate (512) positioned at the front upper portion of the drum (200) from the support plate (5113), and a felt (513) coupled to the lower portion of the support plate (512) and in contact with the drum (200).

Accordingly, the front stopper (510) can absorb the impact of the drum (200) by lifting the lever plate (5112) and the extension plate (5113) upward to a certain degree when the drum (200) is lifted upward, and the felt (513) can prevent the drum (200) from being lifted excessively upward by rubbing against the front of the drum (200).

The outer surface of the inlet (211) of the drum (200) may be extended to a diameter smaller than that of the drum body (210) and may include a grounding portion (213) with which the support wheel (533) or the felt (513) may come into contact. As a result, the felt (513) and the support wheel (533) may be accurately seated on the grounding portion (213) to limit movement of the drum (200).

The front stopper (510) may be positioned at a specific distance from the front upper portion of the drum. The specific distance may be a distance that allows the drum (200) to escape the gasket (413) when rotating, or may correspond to a range in which the drum (200) can excessively twist the rotation axis (470).

Referring to Fig. 7(b), the front stopper (510) may be provided with a contact wheel (532) that rotatably contacts the support plate (512) and the felt (513) with the grounding portion (213).

Thereby, the support wheel (533) supports the lower part of the grounding part (213) and the contact wheel supports the upper part of the grounding part (213), thereby preventing the drum (200) from leaving the input communication hole (412).

Referring to Fig. 7(c), therefore, the rear case (420) and the drum (200) are arranged to be spaced apart, but the rear stopper (520) and the driving unit (M) can support the rear of the drum (200), and when the drum (200) approaches the rear case (420) excessively, the rear stopper (520) can prevent it. As a result, damage due to friction or contact between the rear case (420) and the drum (200) can be prevented.

The rear stopper (520) is arranged in front of the rear case (420) to prevent the drum back surface (220) from contacting and colliding with the rear case (420). When clothes are received in the drum (200) and rotate, the drum (200) generates an external force that moves forward or backward as well as moving upward or downward because it is not fixed by a belt.

Since the rear case (420) supports the load of the driving unit (M), it should be made of a material that is thicker or more rigid than the front case (410). Accordingly, the rear case (420) does not cushion the movement of the drum (200) when the drum (200) moves downward, but rather supports it, and thus may generate a repulsive force that pushes the drum (200) upward.

In this process, the drum (200) is strongly pressed toward the front case (410), and in severe cases, the door (130) may be forcibly opened.

Accordingly, the rear stopper (520) can allow the drum (200) to move rearward to a certain degree by being spaced apart from the rear of the drum (200) by a standard distance. As a result, the drum (200) can be prevented from excessively pressurizing the front case (410).

The above standard interval can be defined as an interval at which the rear surface of the drum (200) and the rear stopper (520) can be supported by contact when the drum (200) is pushed backwards when the drum (200) rotates because clothing exceeding the standard amount is accommodated in the drum (200).

Accordingly, the rear spotter (520) can support the drum (200) only when the drum (200) moves backwards by a standard distance, thereby preventing the rear supporter (520) from being worn. The rear supporter (520) can have a felt attached thereto that can come into contact with the drum (200).

Additionally, the drum (200) and the rear case (420) may be arranged spaced apart from each other by a standard interval or more.

The rear stopper (520) may include a support joint (521) supported on the bottom surface of the cabinet (100) or the hot air supply unit (900), a support leg (522) extending from the support joint (521) toward the drum (200), an extension (524) extending forwardly from the support leg (522) in an inclined manner, and a limiting portion (525) extending from the extension (524) to face the back surface (220) of the drum.

The above support leg (522) may further have a cut groove (523) provided on the inside to enhance rigidity.

The above extension (524) extends obliquely from the support leg (522) to buffer external force applied from the drum (200) to a certain level and can strengthen the rigidity of the entire rear spotter (520).

The above extension portion (524) may include an inclined extension portion (5241) extending forward from the support leg (522) and a straight extension portion (5242) extending upward from the inclined extension portion (5241).

The above-mentioned limiting portion (525) may include a spaced portion (5251) that extends rearwardly from the straight extension portion (5242) and is arranged spaced apart from the drum back surface (220), and a load supporting portion (5252) that is provided so as to face the lower portion of the drum back surface (220) from the spaced portion (5251).

In order to reinforce the rigidity of the load supporting member (5252), a bending member (5253) formed by bending the free end of the load supporting member (5252) may be further installed.

The above rear stopper (520) can prevent direct contact with the rear of the drum (200) due to the separation portion (5251). Rather, it can allow the drum (200) to move to a certain degree toward the rear.

As a result, the rear case (420) can be placed between the rear stopper (520) and the reducer (700) or the driving unit (600).

Meanwhile, the rear stopper (420) may be positioned at a predetermined distance from the lower portion of the drum. The predetermined distance may correspond to a distance at which the drum (200) leaves the sealing portion (490) or a distance at which the rotation shaft (470) is excessively twisted.

That is, the straight extension portion (5242) can be placed at a certain distance from the rear of the drum (200).

Figure 8 illustrates the structure of the rear case (420) of the present invention.

Even if the above motor unit (600) is fixedly coupled to the reducer (700) and the reducer (700) itself becomes the reference for the position and vibration of the driving unit (M), the reducer (700) needs to be supported while positioned on the back of the drum (200) in order to rotate the drum (200).

Accordingly, the reducer (700) may be mounted on the rear case (420) and supported inside the cabinet (100). However, the motor unit (600) and the drum (200) may be positioned apart from the rear case (420). This is to prevent the motor unit (600) or the drum (200) from interfering with other components other than the reducer (700) and moving separately from the reducer (700).

As a result, the rear case (420) can serve as an operating point of a seesaw in a vibration system or a rotation system including the reducer (700), the motor unit (600), and the drum (200).

The rear case (420) may include a rear plate (421) disposed on the rear surface of the drum (200) and provided to face the front plate (411), and a drum receiving groove (422) that protrudes from the rear plate (421) and is provided in a shape corresponding to the drum rear surface (220). The drum receiving groove (422) may be provided to protrude from the rear plate (421) with a diameter and depth that can accommodate a portion of the outer circumference of the drum rear surface (220) while being spaced apart from the drum rear surface (220). That is, the drum receiving groove (422) may protrude from the rear plate (421) by a first height (L1) to induce a portion of the drum rear surface (220) to be accommodated in front of the elongate (421). The drum receiving groove (422) may be provided with a plurality of communication holes (424) that face the suction holes (224) of the drum back surface (220) and allow air to pass through. A reinforcing bend (426) that can reinforce rigidity may be provided between the communication holes (424). The reinforcing bend (426) may be provided in a recessed or protruding manner between the communication holes (424) to prevent the rigidity of the rear plate (421) arranged between the communication holes (424) from being weakened. The plurality of communication holes (424) are configured to supply hot air supplied from the hot air supply unit (900) to the drum (200). At this time, since the drum receiving groove (422) receives the drum back surface (220), the hot air discharged from the communication hole (424) can be induced to be supplied to the suction hole (224). Meanwhile, the clothing treatment device of the present invention may further include a sealing part (450) provided to seal between the drum receiving groove (422) and the drum back surface (220), and the sealing part (450) may be provided to be received and mounted in the drum receiving groove (422).

As a result, the drum receiving home (422) can not only strengthen the rigidity of the rear plate (421), but also provide a space in which the sealing portion (450) can be installed.

The mounting portion (490) may be provided by being recessed in the drum receiving groove (422) in a direction opposite to the direction in which the drum receiving groove (422) protrudes. The mounting portion (490) may be provided by being recessed to a depth L2 from the inner surface of the drum receiving groove (422). Since the mounting portion (490) is provided by being recessed in the drum receiving groove (422), the rigidity of the drum receiving groove (422) can be strengthened, and at the same time, the overall rigidity of the rear plate (421) can be strengthened.

In addition, the mounting portion (490) can be positioned closer to the drum rear surface (220) by being sunken forward by L2 from the drum receiving groove (422). As a result, the gap between the reducer (700) mounted and fixed to the mounting portion (490) and the drum rear surface (220) can be reduced, and the length of the rotational shaft (740) connecting the reducer (700) and the drum rear surface (220) can be further reduced, thereby ensuring the durability of the rotational shaft (740) and reducing the angular range at which the rotational shaft (740) can be twisted.

In addition, the mounting portion (490) may be recessed into the drum receiving groove (422) and may be provided with a diameter larger than that of the reducer (700) and the driving portion (600). Accordingly, at least a portion of the reducer (700) and the motor portion (600) may be accommodated in the mounting portion (490), thereby reducing the thickness of the overall cabinet (100).

The above mounting portion (490) may include a shaft through-hole (4291) through which a rotation shaft (740) extending from the reducer (700) passes through the rear plate (421), a mounting surface (4292) provided on an outer surface of the shaft through-hole (4291) to support the reducer (700), and a mounting groove (4294) extending rearward from the mounting surface (4292) to the drum receiving groove. A fastening portion (4293) coupled with the reducer (700) or a coupling portion (800) that couples the reducer (700) to the mounting surface (4292) may be installed on the mounting surface (4292).

Meanwhile, the mounting groove (4294) can accommodate at least a part of the reducer (700) or the motor unit (600). Accordingly, a wire support groove (4295) in which a wire supplying current to the stator (610) can be installed can be provided by being recessed outward from the mounting groove (4294). The mounting groove (4294) can be provided to be larger than the diameter of the driving unit (M).

Meanwhile, the rear case (420) may further be provided with an air movement hole (423) that transfers hot air supplied from the connector (930) to the duct cover (430). Air introduced into the air ejection hole (423) may be introduced into the communication hole (424) along the duct cover (430).

Figure 9 illustrates the motor unit (600) of the clothing treatment device of the present invention being coupled to a reducer (700).

The above-described reducer (700) may be provided to be supported by being mounted on the mounting portion (429) and to rotate the drum (200). The above-described stator (610) may be directly coupled to and fixed on the reducer (700) and may be spaced apart from the mounting portion (429). The above-described rotor (620) may be supported on the reducer (700) by a driving shaft (630) coupled to the reducer (700) and may be provided to rotate the above-described stator (610).

The above stator (610) may be arranged so that the arrangement of the reducer (700) and the motor unit (600) forms a parallel coaxial axis (s) by being coupled to the reducer (700). The rotation center of the motor unit (600) may be arranged on the coaxial axis (s), and the rotation center of the reducer (700) may also be arranged on the coaxial axis (s).

As a result, the rotor (620) can also rotate based on the coaxial axis (S), and the rotational axis (740) extending from the reducer (700) can also rotate based on the coaxial axis (S).

The above-mentioned reducer (700) can be directly coupled to fix the stator (610). The stator (610) can be arranged spaced apart from the rear case (420) or can be arranged spaced apart from the mounting portion (429).

Of course, the stator (610) may be supported by being in contact with the rear case (420), and if it is directly fixed to the reducer (700), it may be additionally coupled to the rear case (420).

The above stator (610) is coupled to the reducer (700), and the reducer (700) converts the rpm of the driving shaft (630) to rotate the rotation shaft (740), so that the drum (200) can also rotate around the coaxial axis (s).

Even if the above reducer (700) vibrates or rotates and the coaxial shaft (s) is misaligned, the driving shaft (630) and the rotation shaft (740) can be arranged parallel to the coaxial shaft (s).

As a result, the above reducer (700) can be coupled and fixed to the rear case (420).

Since the above-mentioned reducer (700) is coupled to the rear of the rear case (420) and the drum (200) is arranged in front of the rear case (420), the rear case (420) can be arranged between the drum (200) and the reducer (700).

The above reducer (700) can rotate the drum by having the drum rotation shaft (470) pass through the rear case (420) and can support the load of the drum through the drum rotation shaft (470).

In addition, the rear case (420) can be seen as being placed between the drum (200) and the motor unit (600). The reducer (700) can be placed between the drum (200) and the motor unit (600) and supported by the rear case (420).

At this time, the drum (200) and the motor unit (600) can be placed completely apart from each other in the rear case (420). Accordingly, the reducer (700) can serve as the support center of the drum (200) and the motor unit (600).

In addition, the drum (200) is spaced apart and placed in front of the rear case (420), the motor unit is spaced apart and placed in the rear of the rear case (420), and the reducer (700) is connected to the motor unit (600) and the drum (200) by penetrating the rear case at the rear of the rear case.

Accordingly, the drum (200) and the motor unit (600) may be provided to transmit at least a portion of the load to the rear case (420) through the reducer (700).

As a result, the motor unit (600), the reducer (700), and the drum (200) can tilt or vibrate simultaneously with respect to the rear case (420).

In addition, since the stator (610) is fixed to the reducer (700), the driving shaft (630) can tilt together with the reducer (700) or vibrate simultaneously with the reducer (700).

Figure 10 illustrates the appearance of the above reducer (700).

The above-mentioned reducer (700) may include a reducer housing (710, 720) that forms an exterior and accommodates a gearbox therein. The reducer housing may include a first housing (710) that faces the motor unit (600) and a second housing (720) that is provided to face the drum (200).

Referring to Fig. 10(a), the gearbox inside the reducer (700) is mostly accommodated inside the first housing (710), and the second housing (720) may be provided to shield the inside of the reducer (700). As a result, the overall thickness of the reducer (700) can be reduced, thereby further extending the length of the drum (200).

The second housing (720) may include a blocking body (722) provided to shield the first housing (710), a coupling body (721) that extends along the perimeter of the blocking body (722) and is coupled to the first housing (710), and a shaft support part (723) provided to support the rotation shaft (740) in the blocking body (722).

The above blocking body (722) may be provided in a disc shape, and the connecting body (721) may have a certain thickness in the blocking body (722) and may extend toward a part of the first housing (710).

Of course, the above-mentioned coupling body (721) may be provided in the first housing (710) to couple the above-mentioned blocking body (722).

The above-mentioned shaft support member (723) can prevent the rotation shaft (740) from being twisted and maintain the alignment of the rotation shaft (470) and the driving shaft (630).

The above-mentioned joining body (721) has a certain thickness and a fastening member (780) that can secure the reducer (700) to the stator (610) or the mounting member (429) can be installed.

The above-mentioned fastening portion (780) may be provided so as to protrude outwardly from the above-mentioned coupling body (721), and may be provided integrally with the above-mentioned coupling body (721). The above-mentioned fastening portion (780) may include at least one of a fastening projection (781) that may be coupled with the above-mentioned stator (610), and a fastening projection (782) that may be coupled with the above-mentioned mounting portion (429). The above-mentioned fastening projections (781) may be provided in multiple numbers spaced apart from each other along the outer circumferential surface of the above-mentioned coupling body (721), and may be arranged spaced apart from each other at the same angle with respect to the above-mentioned shaft receiving portion (713).

Referring to Fig. 10(b), the first housing (710) is provided in a multi-stage shape and can accommodate gears of various diameters. In general, the gearbox coupled to the reducer (700) may include a sun gear, a planetary gear that orbits the sun gear, and a ring gear that accommodates the planetary gear and induces the planetary gear to rotate. The first housing (710) may include a ring gear housing (711) coupled to the second housing (720) and that accommodates the ring gear, and a planetary gear housing (712) that extends away from the second housing (720) from the ring gear housing (711) and accommodates one end of the planetary gear.

The above planetary gear housing (712) may be provided with a diameter smaller than that of the ring gear housing (711). However, the center of the above planetary gear housing (712) and the center of the above ring gear housing (711) may be designed to be arranged coaxially (s).

A drive shaft (630) that is rotatably coupled to the rotor (620) may be coupled to the above-mentioned planetary gear housing (712). The drive shaft (630) may be inserted into the first housing (710) and rotatably supported by a gearbox within the first housing (710).

A washer part (640) that rotatably supports the rotor (620) may be mounted on one surface of the above-mentioned planetary gear housing (712), and a washer projection (7121) to which the washer part (640) may be coupled and fixed may be installed. In addition, the above-mentioned planetary gear housing (712) may also be provided with a washer coupling hole (7122) to which the washer part (640) may be rotatably coupled.

The above washer projection (7121) and the above washer coupling hole (7122) can be arranged in multiple numbers at a certain angle based on the driving shaft (630).

The above-mentioned fastening projection (781) may be provided with a larger cross-sectional area and a thicker thickness than the above-mentioned joining projection (782). As a result, the bonding force between the above-mentioned fastening projection (781) and the above-mentioned stator (610) may be strengthened, and vibration transmitted from the above-mentioned stator (610) may be more easily withstood.

The above stator (610) can be mounted on the fastening projection (781) and coupled to the fastening projection (781) as a separate fixing member. The fastening projection can have a fastening projection hole (7811) formed therein, into which a fastening member can be fastened by penetrating the stator (610), and a screw thread that can be coupled with the fastening member can be formed inside the fastening projection hole (7811).

Figure 11 illustrates a structure in which the stator (610) is coupled to the reducer (700).

The above stator (610) may include a main body (611) that is fixed to the reducer (600) and is provided in a ring shape, a fixed rib (612) that extends from the inner surface of the main body (611) and is coupled to the fastening projection (781), a tooth (614) that extends from the outer surface along the circumference of the main body (611) and is provided so that a coil is wound, a pole shoe (615) that is provided at the free end of the tooth (614) and prevents the coil from coming off, and a terminal (616) that controls the supply of current to the coil.

The main body (611) above may have an accommodation space (613) inside, and the fixed ribs (612) may be provided in multiple numbers at a predetermined angle relative to the accommodation space (613) inside the main body (611), and the inside of the fixed ribs (612) may include a fixed rib hole (6121) in which a fixed member coupled with the fastening projection (781) is installed.

Since the stator (610) is directly coupled to the reducer (700), the reducer (700) can be coupled to the stator (610) by being at least partially accommodated therein.

In particular, when the reducer (700) is accommodated in the stator (610), the thickness of the entire driving part (M) can be reduced, thereby further expanding the volume of the drum (200). In addition, when the reducer (700) is accommodated in the stator (610), the rotational shaft (740) of the reducer (700) and the driving shaft (630) can more precisely maintain coaxiality.

To this end, the reducer (700) may be provided with a diameter smaller than that of the main body (611). That is, the first housing (710) and the second housing (720) may be provided with a largest diameter smaller than that of the main body (611). Accordingly, the reducer (700) may be arranged so that at least a portion thereof is accommodated in the main body (611). However, the fastening projection (781) may be extended so as to overlap the fixed rib (612) in the reducer housing. Accordingly, the fastening projection (781) may be coupled to the fixed rib (612), and a portion of the first housing (710) and the second housing (720) may be positioned inside the main body (611).

The above-mentioned fixed rib (612) may include a first fixed rib (612a) that is directly connected to the above-mentioned fastening projection (781), and a second fixed rib (612b) that is not directly connected to the above-mentioned fastening projection (781) but can support the above-mentioned fastening projection (781) or the above-mentioned first housing (710).

The above-mentioned coupling protrusion (782) can be arranged in an interlocked manner with the above-mentioned fastening protrusion (781) to prevent interference with the above-mentioned fastening protrusion (781).

Figure 12 illustrates a structure in which the motor section (600) is coupled to the reducer (700).

The above stator (610) is coupled to the reducer (700). It may be coupled to one side of the reducer (700), but may be coupled to a fastening projection (781) protruding outward from the housing of the reducer (700) so that at least a portion of the reducer housing may be accommodated inside the main body (611). As a result, the center of the main body (611), the center of the reducer (700), and the rotational shaft (630) can always maintain coaxiality.

Meanwhile, the rotor (620) may be positioned to receive the stator (610) while being spaced apart from the pole shoe (615) by a certain distance. Since the rotor (620) is fixed to the reducer (700) in which the driving shaft (630) is received in the main body (611), the gap (G1) between the rotor (620) and the stator (610) can always be maintained.

Accordingly, the rotor (620) and the stator (610) can be prevented from colliding or from temporarily twisting and rotating in the stator (610), thereby preventing noise or unnecessary vibration from occurring.

Meanwhile, a virtual first diameter line (D1) passing through the center of the reducer (700) and the center of the drive shaft (630), a virtual second diameter line (D2) passing through the center of the main body (611), and a virtual third diameter line (D3) passing through the center of the rotor (620) can all be arranged at the center of rotation of the drive shaft (630).

Accordingly, since the reducer (700) itself becomes the center of rotation of the driving shaft (630) and the stator (610) is directly fixed to the reducer (700), the driving shaft (630) can be prevented from being deviated from the reducer (700). As a result, the reliability of the reducer (700) can be guaranteed.

Figure 13 illustrates a structure in which the above-mentioned reducer (700) is mounted on the above-mentioned rear case (420).

The above motor part (600) is fixedly coupled to the reducer (700), but the reducer (700) can be fixed to the mounting part (429) of the rear case (420).

Of course, if the motor unit (600) of the clothing treatment device of the present invention can be fixed by being coupled to the reducer (700), the reducer (700) may be supported in any configuration.

The above-described reducer (700) may be directly coupled and fixed to the mounting portion (429), but since the mounting portion (429) is generally processed by press-molding the rear case (420), the thickness may be thin. Therefore, if the reducer (700) is directly coupled to the mounting portion (429), it may be difficult for the mounting portion (429) to fix the reducer (700). In particular, if the motor portion (600) is coupled to the reducer (700), the load of the motor portion (600) is also transmitted to the mounting portion (429). Therefore, durability may not be guaranteed, such as if the mounting portion (429) is bent by the driving portion (M).

Therefore, the clothing treatment device of the present invention may further include a bracket (800) that can reinforce the rigidity of the mounting portion (429) and enhance the durability of the entire rear case (420). The bracket (800) may be thicker than the rear case (420) and may be formed of a material that is stronger than the rear case (420).

The above bracket (800) can be combined with the mounting portion (429) in surface contact to reinforce the rigidity of the mounting portion (429), and can be combined with the reducer (700) to fix the reducer (700) to the mounting portion (429).

The above-mentioned reducer (700) can be coupled to the bracket (800) while being coupled to the mounting portion (429), or can be fixed to the mounting portion (429) by being coupled only to the bracket (800).

The above bracket (800) may include a main bracket (810) coupled to the mounting portion (429) and also coupled to the reducer housing. The main bracket (810) may be provided to support the reducer (700) while being secured and fixed to the mounting surface (4292).

The above main bracket (810) may include a plurality of installation ribs (814) that can be directly coupled with the reducer (700), and the installation ribs (814) may include installation rib holes (8144) to enable a fixing member to be coupled to the reducer (700).

The above main bracket (810) may include a fixing projection (8111) that is provided to engage with the fastening portion (4293) installed on the mounting surface (4292). The fastening portion (4293) is provided to be sunken in the mounting surface (4292), and the fixing projection (8111) is inserted into the fastening portion (4293) so that the main bracket (810) can be prevented from rotating in the mounting portion (429) or changing its installation position due to vibration or the like.

The above reducer (700) is coupled to the main bracket (810) and is spaced apart from the mounting portion (429), so that noise and vibration that may occur due to a collision between the mounting portion (429) and the reducer (700) can be blocked.

However, since the reducer (700) receives power from the motor unit (600) and the gearbox rotates inside, considerable vibration may occur. Furthermore, the reducer (700) may also receive vibration from the drum (200). Therefore, it may be necessary to improve the bonding strength between the main bracket (810) and the reducer (700).

To this end, the bracket (800) may further include an auxiliary bracket (820) that is coupled to both the main bracket (810) and the reducer (700) to secure the reducer (700) to the main bracket (810).

The above main bracket (810) and the above auxiliary bracket (820) can be combined to surround the reducer (700). The main bracket (810) is combined to one side of the reducer (700), and the above auxiliary bracket (820) is combined to the other side of the reducer (700) to fix both sides of the reducer (700).

For example, the main bracket (810) can be coupled to one side of the coupling protrusion (782), and the auxiliary bracket (820) can be coupled to the other side of the coupling protrusion (782) to fix the reducer (700).

The above auxiliary bracket (820) may be coupled to the mounting portion (429), but may also be coupled and fixed to the main bracket (810). Since the main bracket (810) is provided with greater rigidity than the mounting portion (429), the auxiliary bracket (820) may be stably coupled to the main bracket (810).

Figure 14 illustrates an example of a structure in which the bracket (800) and the reducer (700) are combined.

Referring to Fig. 14(a), the connecting projection (782) may be provided to be smaller in area, size, or thickness than the fastening projection (781), but may be provided in greater numbers than the fastening projection (781).

The above-mentioned coupling protrusion (782) may be arranged alternately with the above-mentioned fastening protrusion (781). In addition, the above-mentioned coupling protrusion (782) may be arranged parallel to the fastening protrusion (781) or may be arranged at different heights.

The above-mentioned joining projection (782) may be provided in a plate shape so as to be supported by the bracket (800) or to be in surface contact with the bracket (800), and may be provided with a joining projection hole (7821) into which a joining member capable of being joined with the bracket (800) may be joined.

Referring to Fig. 14(b), the main bracket (810) may include a main body (811) that is provided in a ring shape and can be mounted on the mounting surface (4292). The main body (811) may be provided with a diameter corresponding to the mounting surface (4292) so as to be in surface contact with the mounting surface (4292).

The above-mentioned fixing protrusions (8111) can be arranged in multiple numbers along the circumference of the main body (811), and the above-mentioned fixing protrusions (8111) can be arranged at the same angle based on the center of the main body (811). The above-mentioned fixing protrusions (8111) can be supported by being secured to a fastening member (4293) provided on the mounting surface (4292).

Meanwhile, the main body (811) may be fixed to the mounting surface (4292) via a fastening member. At this time, a fastening hole into which the fastening member is coupled may be provided through the main body (811).

However, since the fixing projection (8111) is provided by being bent or sunken into the main body (811), it may have stronger shock or vibration absorption capacity than the main body (811). Accordingly, the fastening hole may be provided in the fixing projection (8111), and a fastening member may be connected to the mounting surface (4292) by penetrating the fixing projection (8111).

A mounting body (912) having a disc shape may be provided on the inner surface of the main body (811). The mounting body (912) may have a diameter smaller than that of the mounting surface (4242), and may be an area that does not come into contact with the mounting surface (4242).

If the purpose of the above main body (811) is to be fixed by being coupled to the mounting portion (429), the purpose of the above fixing body (912) may be to extend from the inner surface of the main body (811) and support the load of the reducer (700).

The above-mentioned fixing body (912) is bent and extended from the inner surface of the main body (811) to strengthen the rigidity of the main bracket (810) and effectively support the load of the reducer (700).

The above-mentioned reducer (700) may be directly coupled to the above-mentioned mounting body (912). That is, the coupling projection (782) of the above-mentioned reducer may be coupled by being mounted on the above-mentioned mounting body (912).

However, when the diameter of the above-mentioned settling body (912) is provided relatively large, an installation rib (814) that protrudes inward may be provided on the inner surface of the above-mentioned settling body (912).

The above-mentioned installation rib (814) may be provided with a larger area than the above-mentioned coupling protrusion (782), and may be provided with a width corresponding to the circumferential direction longer than the length protruding from the above-mentioned fixing body (912). Accordingly, the above-mentioned installation rib (814) may stably support the load of the above-mentioned reduction gear (700). The above-mentioned installation rib (814) may be provided in a number corresponding to the above-mentioned coupling protrusion (782), and an installation rib hole (81413) may be provided so as to face the above-mentioned coupling protrusion hole (7821).

The above-mentioned installation rib (814) may extend parallel to the above-mentioned mounting body (912), but may also extend by protruding axially from one side of the above-mentioned mounting body (912). The above-mentioned installation rib (814) may be provided by protruding from the above-mentioned mounting body (912) in a direction toward the reduction gear (700).

In this way, the reducer (700) can be prevented from protruding excessively outside the bracket (800). In addition, when the main bracket (810) is fastened to the auxiliary bracket (820), the joining body (782) secured to the installation rib (814) can be induced to be more closely attached to or accommodated in the auxiliary bracket (820).

Referring to Fig. 14(c), the auxiliary bracket (820) may include an auxiliary body (821) that is provided in a ring shape and can be mounted on the mounting body (812), and a shielding body (822) that extends inward from the auxiliary body (821).

The above auxiliary body (821) can be mounted on the mounting body (812) without coming into contact with the main body (811). To this end, the auxiliary body (821) can be manufactured with a diameter corresponding to the mounting body (812). Accordingly, even if the main bracket (810) and the auxiliary bracket (820) are joined with the mounting portion (429) interposed therebetween, the auxiliary bracket (820) can be prevented from interfering with the mounting portion (429).

The above auxiliary body (821) is supported by direct contact with the above fixing body (812), and can be combined with the fixing body (812) by a separate fastening member. That is, the fixing body (812) can be provided with a fixing body hole (8121) through which a fastening member can pass and be combined, and the auxiliary body (821) can be provided with an auxiliary body hole (8211) at a position corresponding to the fixing body hole (8121).

The shielding body (822) may be provided to shield the installation rib (814). That is, the shielding body (822) may be extended to a thickness that can completely shield the installation rib (814) toward the inside of the mounting body (812). The shielding body (822) may be provided to shield the coupling body (782) of the reducer mounted on the installation rib (814) and at the same time shield one side of the coupling body (782).

The above shielding body (822) may be provided so that it can be in close contact with the installation rib (814) and the coupling body (782) when the auxiliary body (821) is coupled to the fixing body (812). That is, the coupling body (782) may be placed between the shielding body (822) and the installation rib (814), and the coupling body (782) may be fixed and supported by the shielding body (822) and the installation rib (814).

Meanwhile, the shielding body (822) may include a rib receiving groove (8221) that is provided with an area corresponding to the installation rib (814) and is provided in a recessed manner to receive the installation rib (814).

The above rib receiving groove (8211) can be installed to correspond to the number of the installation ribs (814) and can be provided at a position corresponding to the installation ribs (814). The above rib receiving groove (8211) can be provided to accommodate all of the installation ribs (814) and can be provided to pressurize one surface of the installation ribs (814).

When the above auxiliary bracket (820) is coupled to the main bracket (810), the installation rib (814) and the coupling protrusion (782) can be inserted into and fixed in the rib receiving groove (8211).

The above-mentioned coupling projection (782) can be fixed by being pressed against or pressed against the installation rib (814) and the rib receiving groove (8211).

Thereby, the auxiliary bracket (820) can be prevented from twisting in the main bracket (810), and the coupling projection (782) can also be fixed to the rib receiving groove (8211) and the installation rib (814), so that the reducer (700) can be stably fixed.

The above shield body (822) may further include a deceleration avoidance hole (8222) that prevents overlapping with the fastening projection (781) and exposes the fastening projection (781). The fastening projection (781) is exposed through the deceleration avoidance hole (8222), so that the stator (610) can be stably coupled to the fastening projection (781).

In addition, the shielding body (822) may further include a wire escape groove (8223) through which a wire connected to the terminal (816) may pass.

Meanwhile, the shielding body (822) may be provided to shield a portion of the surface of the first housing (710) of the reducer (700). As a result, the reducer (700) can be prevented from being detached from the bracket (800) even due to vibration or impact.

The above auxiliary bracket (820) may further include a support hole (824) into which a washer projection (7121) protruding from the first housing (710) of the reducer (700) may be inserted, and a projection fastening hole (825) into which a through projection (8141) protruding from the installation rib (814) and insertable into the auxiliary bracket (820) may be inserted may be provided.

Figure 15 illustrates an embodiment in which the bracket (800) is coupled to the reducer (700).

Referring to Fig. 15(a), the main bracket (810) can be first coupled to the reducer (700) to fix the reducer (700). The coupling projection (782) extending from the reducer housing can be seated on the installation rib (814) of the main bracket (810). The coupling projection (782) and the installation rib (814) can be coupled by a fastening member.

At this time, the fastening projection (781) can be positioned away from the installation rib (814) and exposed inside the main bracket (810).

Referring to Fig. 15(b), when the reducer (700) is mounted on the main bracket (810), the auxiliary bracket (820) can be coupled to the main bracket (810).

The above auxiliary body (821) can be coupled to the above mounting body (812), and the above shielding body (822) can shield the internal space of the reducer (700) and the above mounting body (812).

In the shielding body (822), the rib receiving groove (824) can receive the installation rib (814) on which the coupling rib (782) is secured. The coupling rib (782) can be supported by being positioned between the rib receiving groove (824) and the installation rib (814). As a result, the coupling rib (782) can be prevented from being arbitrarily separated from the installation rib (814).

The above shielding body (822) may be provided so that the fastening projection (781) can be exposed to the outside due to the deceleration avoidance groove (8222). Accordingly, even if the bracket (800) fixes the reducer (700), the coupling between the motor unit (600) and the reducer (700) may not be hindered.

The above-mentioned reducer (700) can be sufficiently fixed by being coupled to the main bracket (810). The above-mentioned auxiliary bracket (820) can strengthen the coupling force between the main bracket (810) and the reducer (700) and prevent the reducer (700) from being arbitrarily separated from the main bracket (810).

The above-mentioned reducer (700) is fixed to the main bracket (810) and the auxiliary bracket (820) and can be stably fixed to the mounting portion (429) without a separate component fixed to the mounting portion (429).

In addition, the reducer (700) may be fixed and supported by the bracket (800) and coupled to the mounting portion (429) without being directly coupled to the mounting portion (429). Accordingly, the reducer (700) may be stably fixed to the mounting portion (429) even when coupled to the motor portion (600).

Figure 16 illustrates a sun in which the bracket (800) is coupled to the rear case (420).

Referring to Fig. 16(a), the main bracket (810) can be coupled to the mounting portion (429) at the front of the rear case (420).

When the drum (200) is rotated while clothes are accommodated in it, the drum (200) can apply a force to push toward the reducer (700). In particular, the drum (200) can be designed to prevent the door from being opened by the clothes by being pressed or moved toward the front case (410).

At this time, in order to prevent the reducer (700) from being separated from the rear case (420), the main body (811) can be coupled to a surface of the mounting surface (4292) that does not face the motor unit (600). Accordingly, the main bracket (810) can fix the reducer (700) so as to prevent the reducer from being pushed and moved toward the motor unit (600).

The main bracket (810) may be provided to face the drum back surface (220) and may be coupled to the front of the mounting portion (429). The mounting portion (429) may be provided to protrude from the rear case (420) toward the drum (200). Accordingly, the main body (811) of the main bracket (810) may be coupled and fixed to one surface of the mounting surface (4292) of the mounting portion (429) that protrudes toward the drum (200).

The fixing projection (8111) protruding from the main body (811) can be accommodated in the fastening portion (4293) provided on the mounting surface (4292). Of course, the fastening portion (4293) can be provided to be accommodated on the opposite side of the fixing projection (8111). Since the fixing projection (8111) is provided under pressure from the main body (811), the opposite side can be formed as a receiving groove.

Accordingly, the fastening portion (4293) may be provided so as to protrude from the mounting surface (4292) toward the drum (200), or may be provided so as to protrude away from the drum (200). The fixing projection (8111) may be provided so as to protrude in the same direction as the direction in which it protrudes from the fastening portion (4293) so as to be secured to the fastening portion (4293).

Since the above main body (811) is combined with the above mounting surface (4292) by making surface contact, the effect of increasing the thickness of the above mounting surface (4292) can be derived. In addition, since the above main body (811) prevents the above mounting surface (4292) from bending, the effect of strengthening the rigidity of the above mounting surface (4292) can be derived.

When the above auxiliary bracket (820) is mounted on the main bracket (810), the shielding body (822) of the above auxiliary bracket (820) can be exposed to the front of the rear case (420).

Referring to Fig. 16(b), the auxiliary bracket (820) can be coupled to an area of the main bracket (420) exposed to the mounting portion (429) at the rear of the rear case (420) to fix the reducer (700). Since the main body (811) of the main bracket (420) is coupled to the mounting surface (4292), only the fixing body (812) can be exposed to the mounting portion (429).

Accordingly, the auxiliary bracket (820) can be coupled to the mounting body (812) to secure the reducer (700).

As a result, the main bracket (810) can be coupled to the front of the rear case (420), and the auxiliary bracket (820) can be coupled to the main bracket (810) at the rear of the rear case (420).

Finally, the auxiliary bracket (820) is provided with a diameter smaller than the mounting surface (4292) so as to intensively assist the coupling of the reducer (700) to the main bracket (810).

Figure 17 illustrates a structure in which the reducer (700) is supported by being coupled to the rear case (420).

The front surface of the above mounting surface (4292) can be joined with the main body (811) of the above main bracket (810), and the above mounting body (812) can form a step in the above main body (811) or have a groove formed in which a portion extending from the above main body (811) is bent by a certain amount, so that the overall rigidity of the above main bracket (810) can be strengthened.

The above-mentioned installation rib (814) may include an extension surface (8141) that extends slantedly from the mounting body (812) toward the rear of the rear case (420), and a support surface (8142) that extends from the extension surface (8141) in a direction parallel to the rear plate (411) to support the coupling rib (782).

The above support surface (8142) may be provided with a fixing hole (8413) into which the above fastening member can be attached.

The above installation rib (814) may further include a through-hole (8144) that extends from the support surface (8142) toward the auxiliary bracket (820).

The above reducer (700) can be coupled by having a coupling projection (782) extended from the reducer housing (710) be seated on the support surface (8142).

The above auxiliary bracket (800) may be coupled by the auxiliary body (821) coming into contact with the mounting body (812), and the shielding body (822) may include an inclined surface (824) that is provided by being sunken along the incline of the extension surface (8141) in the installation rib. The inclined surface (824) may be extended inclinedly to the rib receiving groove (8221) that receives the installation rib (814).

The shield body (822) is provided with the protrusion fastening hole (825) into which the through-hole protrusion (8144) is inserted and fixed. The protrusion fastening hole (825) can be supported by the through-hole protrusion (8144) penetrating through it. The position where the auxiliary bracket (820) and the main bracket (810) are coupled can be easily determined due to the through-hole protrusion (8144) and the protrusion fastening hole (825). The through-hole protrusion (8144) may also be provided to penetrate the coupling body (782).

Meanwhile, the mounting portion (429) includes a mounting groove (4294) that is provided by being sunken toward the front in the drum receiving groove (423), and the mounting surface (4292) can extend from the inner side of the mounting groove (4294).

At this time, since the main bracket (810) and the auxiliary bracket (820) are fixed to the mounting surface (4292), at least a portion of the first housing (710) of the reducer can be accommodated and placed in the mounting groove (4294).

For example, the gearbox (730) accommodated in the first housing (710) and the second housing (720) may be placed inside the mounting groove (4294).

As a result, the volume occupied by the rear case (420) and the reducer (700) can be minimized.

Figure 18 illustrates one embodiment of the driving unit (M) of the clothing treatment device of the present invention.

The bracket (800) is coupled to the rear case (420), and the reducer (700) is coupled to and supported by the bracket (800). The motor unit (600) is arranged at the rear of the reducer (700) and the rear case (420), and the drum rear surface (220) is arranged at the front of the rear case (420) and the reducer (700).

The stator (610) of the motor section (600) is arranged spaced apart from the rear case (420), and the terminal (616) that supplies current to the stator (610) is arranged close to the rear case (420) or may be in contact with the rear case (420), but is not fixedly coupled to the rear case (420).

The rotor (620) may include a permanent magnet (623) facing the stator (610), an installation body (622) coupled with the permanent magnet (623) and spaced apart from the outer surface of the stator (610), and a rotor body (621) extending from the installation body (622) and rotating while facing the stator (610). The rotor body (621) may be provided in a disc shape that is provided to have a diameter larger than that of the stator (610), and the installation body (622) may be provided to receive the outer surface of the stator (610) on the outer surface of the rotor body (621). The above rotor body (621) may be provided with a drive shaft (630) coupled to the center, and a plurality of inlet holes may be formed to inject air into the stator (610) by penetrating between the drive shaft (630) and the installation body (622).

The above driving shaft (630) can be coupled to a starter (631) coupled to the center of the rotor body (621) and extended into the reducer (700).

A washer part (640) that is provided to rotatably support the inner surface of the rotor body (621) may be coupled to the driving shaft (630). The washer part (640) may include a coupling washer (642) coupled to the driving shaft (630) and a support washer (641) that supports the rotor body (620) on the coupling washer (642).

Due to the above washer portion (640), the rotor (620) and the driving shaft (630) can be prevented from being twisted and rotating.

Of course, the washer part (640) may not be coupled to the rotor (620), but may be coupled to the reducer (700) to rotatably support the rotor (620).

The first housing (710) of the above reducer (700) may be provided to face the rotor body (620), and the second housing (720) may be provided to be coupled to the first housing (710) and to face the drum back surface (220).

The gearbox (730) may be provided inside the first housing (710) and the second housing (720). The gearbox (730) may include a sun gear (731) provided on a free end of the driving shaft (630) or coupled to a free end of the driving shaft (630), at least one planetary gear (732) provided to rotate while meshing with the sun gear (731), a ring gear (733) coupled to an outer surface of the planetary gear (732) to induce the planetary gear (732) to rotate, and a carrier (734) that rotatably supports the plurality of planetary gears (732).

The above planetary gears (732) may be arranged along the circumference of the sun gear (731), and each planetary gear (732) may include a first planetary body (7321) that rotates while engaging with the sun gear (731) and the ring gear (733), a second planetary body (7322) that may have a smaller diameter than the first planetary body (7321), and a gear shaft (7323) that rotatably supports the first planetary body (7321) and the second planetary body (7322) on the carrier (734).

When the above sun gear (731) rotates, the above planetary gear (732) rotates, thereby rotating the gear shaft (7323) and thus rotating the carrier (734).

The above carrier (734) may include a first carrier (7341) coupled to one end of the gear shaft (7323) and a second carrier (7342) coupled to the other end of the gear shaft (7323).

The above first carrier (7341) and the above second carrier (7342) may be provided in a ring shape or a disk shape.

Meanwhile, the rotation axis (740) may be extended from the center of rotation of the second carrier (7342). The rotation axis (740) may be provided integrally with the second carrier (7342) or may be extended by being coupled to the second carrier (7342).

The first housing (710) may include a ring gear housing (711) that is provided to fix the outer surface of the first planetary body (732) or the outer surface of the ring gear (733), a planetary gear housing (712) that extends from the ring gear housing (711) to rotatably receive the second planetary body (732) and the first carrier (7341), and a shaft receiving portion (713) that extends from the planetary gear housing (712) to rotatably support the driving shaft (630).

The above ring gear housing (711) may form a side surface of the first housing (710), and the planetary gear housing (712) may form a side surface of the first housing (710) and a surface facing the rotor (620). The shaft receiving portion (713) may be provided in a pipe shape extending inwardly of the planetary gear housing (712). The shaft receiving portion (713) may be arranged in a space formed by the second planetary body (732) having a smaller diameter than the first planetary body (731). The inner circumferential surface of the shaft receiving portion (713) may include a driving bearing (770) that rotatably supports the driving shaft (630). The driving bearings (770) may be arranged in a plurality of spaced apart from each other along the longitudinal direction of the driving shaft (630).

Accordingly, the driving bearing (770) and the shaft receiving portion (713) are not protruded outside the reducer (700), but are arranged inside the reducer (700), thereby reducing the gap at which the driving shaft (630) is arranged. In other words, the volume of the reducer (700) itself can be reduced, and the gap between the reducer (700) and the motor portion (600) can also be reduced.

Accordingly, the overall thickness of the driving part (M) can be reduced, and the stator (610) can be coupled closer to the reducer (700) to prevent the driving shaft (630) from being twisted.

In addition, since the drive bearing (770) and the shaft receiving portion (713) are arranged inside the reducer (700), the drive shaft (630) becomes closer to the reducer (700), so that the reducer (700) can be accommodated and arranged inside the stator (610). As a result, at least a part of the reducer (700) can be arranged by utilizing the space of the motor portion (600).

As a result, the length of the drum (200) positioned between the rear case (420) and the front case (410) can be further extended, and the volume of the drum (200) can be expanded.

Meanwhile, the second housing (720) may include a coupling body (721) coupled to the ring gear housing (711), a blocking body (722) provided to shield the gear box (730) from the coupling body (721), and a shaft support (723) extended from the blocking body (722) to rotatably support the rotational shaft (740). The shaft support (723) may be provided in a pipe shape extended from the blocking body (722), and a shaft bearing (760) may be installed inside the shaft support (723) to rotatably support the rotational shaft (740).

The above-mentioned shaft bearings (760) may be provided in multiple units spaced apart from each other by a certain distance along the longitudinal direction of the rotation shaft (740).

The free end of the above rotation shaft (740) can be inserted into and coupled to the drum back surface (220). At this time, the rotation shaft (740) and the drum back surface (220) can be positioned as close as possible. At least one of the shaft bearings (760) can be positioned closer to the front than the drum back surface (220).

The above drive shaft (630) rotates by the rotor (620), causing the sun gear (731) to rotate, and the planetary gear (732) rotates while meshing with it. The first planetary body (7321) rotates while meshing with the ring gear (733), but since the ring gear (733) is fixed, the first planetary body (7321) rotates along the circumference of the sun gear (731) by reaction.

The above planetary gear (732) rotates the gear shaft (7323), which in turn rotates the carrier (734). When the carrier (734) rotates, the rotation shaft (740) extending from the second carrier (734) rotates.

At this time, since the planetary gear (732) is meshed with the sun gear (731), even if it is meshed with the sun gear (731) and rotates in the opposite direction, the carrier (734) rotates in the same direction as the sun gear (731) due to the reaction as the planetary gear (732) rotates with respect to the ring gear (733), and as a result, the rotational shaft (740) rotates in the same direction as the sun gear (731).

Meanwhile, since the outer surface diameter of the planetary gear (732) and the diameter of the carrier (734) are larger than the diameter of the sun gear (731), the rotation shaft (740) rotates at a smaller rpm than the sun gear (731). Accordingly, the rotation shaft (740) rotates at a smaller rpm than the drive shaft (630). However, since no energy is wasted other than friction loss, the power transmitted to the drive shaft (630) can be transmitted to the rotation shaft (740). Accordingly, the torque, which is the force for rotating the rotation shaft (740), can be amplified as much as the rpm of the rotation shaft (740) decreases.

Since the above-mentioned reducer (700) converts the power corresponding to the low torque and high rpm generated by the above-mentioned motor unit (600) into the power corresponding to the high torque and low rpm, it can be defined that the above-mentioned reducer (700) converts the power of the above-mentioned motor unit (600) and transmits it to the above-mentioned drum (200).

Meanwhile, the a direction, which is the axial direction of the driving shaft (630), and the b direction, which is the axial direction of the rotation shaft (740), can be arranged to form coaxiality with each other. At this time, the driving shaft (630) is supported inside the reducer (700), and the stator (610) is also fixed and coupled to the reducer (700), so that the a direction formed by the driving shaft (630) and the reducer (700) can be maintained almost always.

At this time, since the gearbox (730) is fixed in a gear-coupled manner inside the reducer (700), and the rotational shaft (740) is also fixed in the gearbox (730) by the reducer housing (720) and bearing (770), the b direction in which the rotational shaft (740) extends from the reducer (700) can be almost always maintained.

Accordingly, the a direction and the b direction form a coaxial axis, so that the rotation shaft (740) and the driving shaft (630) can almost always maintain a coaxial axis.

The above rotation shaft (740) and the above drive shaft (630) can be tilted together with the reducer housing or vibrated simultaneously with the reducer housing.

The present invention may be implemented in various modified forms, and the scope of the rights is not limited to the above-described embodiments. Accordingly, if a modified embodiment includes an element of the claims of the present invention, it should be considered to fall within the scope of the present invention.

100 cabinets 200 drums 300 bushings
400 support 500 spotter 600 motor
700 Reducer 900 Hot Air Supply Unit M Drive Unit

Claims (18)

A drum having an inlet for inserting clothes at the front and containing the clothes;
A hot air supply unit arranged outside the drum and supplying hot air to the inside of the drum;
A motor unit provided at the rear of the drum to provide power to rotate the drum;
A reducer is provided between the motor part and the drum to convert the power and rotate the drum;
The above reducer includes a fastening member coupled with the motor,
A garment treatment device characterized in that the motor part is coupled to the fastening part and fixed to the reducer.
In the first paragraph,
The above motor part
A stator that generates a rotating magnetic field at the rear of the drum,
A rotor provided to rotate by the above rotating magnetic field,
It includes a drive shaft coupled to the rotor and inserted into the reducer to rotate,
A garment treatment device characterized in that the stator is provided so as to be coupled to the reducer so that the position where the driving shaft is placed in the reducer is fixed. In the second paragraph,
A garment treatment device, characterized in that the stator is fixedly coupled to the reducer, and the driving shaft is fixed in a position arranged in the reducer, so that the gap between the stator and the rotor is maintained. In the second paragraph,
The above reducer
A reducer housing that accommodates and rotatably supports the above-mentioned drive shaft,
A gearbox that is provided inside the above reduction gear housing and meshes with the driving shaft to change the RPM of the driving shaft,
In the above gearbox, a rotating shaft is included that extends outside the reduction gear housing and is coupled to the drum,
A garment treatment device characterized in that the stator is coupled and fixed to the reduction gear housing. In paragraph 4,
A clothing treatment device characterized in that the above reduction gear housing supports the rotation shaft and maintains the alignment of the rotation shaft and the drive shaft. In paragraph 5,
A garment treatment device, characterized in that the above reduction gear housing includes a shaft support member that extends in the longitudinal direction of the rotation shaft and rotatably supports the rotation shaft to prevent the rotation shaft from being twisted. In the first paragraph,
The above motor part
A stator coupled to the above reducer to generate a rotating magnetic field,
A rotor provided to rotate by the above rotating magnetic field,
It includes a drive shaft coupled to the rotor and inserted into the reducer to rotate,
A garment treatment device, characterized in that the stator and the drive shaft tilt together with the reducer or vibrate together with the reducer. In Article 7,
The above reducer
A reducer housing that accommodates and rotatably supports the above-mentioned drive shaft and is provided with the above-mentioned fastening portion;
A gearbox that is provided inside the above reduction gear housing and meshes with the driving shaft to change the RPM of the driving shaft,
In the above gearbox, a rotating shaft is included that extends outside the reduction gear housing and is coupled to the drum,
A clothing treatment device characterized in that the above-mentioned rotating shaft and the above-mentioned driving shaft tilt together with the above-mentioned reduction gear housing or vibrate together with the above-mentioned reduction gear housing. In the first paragraph,
The above motor part
A stator coupled to the above reducer to generate a rotating magnetic field,
A rotor provided to rotate by the above rotating magnetic field,
It includes a drive shaft coupled to the rotor and inserted into the reducer to rotate,
A garment treatment device, characterized in that the stator is coupled to receive at least a portion of the reducer. In Article 9,
A garment treatment device, characterized in that at least a portion of the driving shaft is disposed inside the stator. In Article 9,
A garment treatment device, characterized in that at least a portion of the reducer is disposed inside the rotor. In Article 9,
A garment treatment device, characterized in that the above reducer includes one or more fastening projections coupled to the inner surface of the stator. A drum having an inlet for inserting clothes at the front and containing the clothes;
A hot air supply unit arranged outside the drum and supplying hot air to the inside of the drum;
A motor unit positioned at the rear of the drum and providing power to rotate the drum;
A reducer provided to connect the above motor unit and the above drum and convert the above power to rotate the above drum;
A rear case is provided between the drum and the motor section and supports the reducer;
The above reducer is fixedly connected to the rear case,
A garment treatment device characterized in that the motor section is coupled to the reducer and arranged to be separated from the rear case. In Article 13,
A garment treatment device characterized in that the drum and the motor section are provided to transmit at least a portion of the load to the rear case through the reducer. In Article 14,
A garment treatment device characterized in that the motor unit, the reducer, and the drum are arranged to tilt or vibrate simultaneously with respect to the rear case. In Article 14,
A garment treatment device characterized in that the drum and the motor section are spaced apart from each other in the rear case. In Article 13,
The above reducer further includes a rotating shaft coupled to the drum,
A clothing treatment device characterized in that the drum is provided to vibrate or tilt separately based on the rotation axis. In Article 17,
A garment treatment device, characterized in that the drum is made of a material capable of providing elasticity.