JP7583916B2 - Clothes Processing Equipment - Google Patents

Description

The present invention relates to a clothing treatment device. More specifically, the present invention relates to a clothing treatment device that is equipped with a drive unit that is directly connected to a drum that stores clothing and rotates the drum.

Clothes treatment devices are devices that apply physical forces to clothes to remove dust or foreign matter from the clothes, and include washing machines, dryers, refreshers (stylers), etc.

A washing machine performs a washing process by supplying water and detergent to clothes and separating and removing foreign substances from the clothes.

Dryers are classified as exhaust dryers or circulation dryers, and both use a heater to produce hot air that is then exposed to the clothes to remove moisture from the clothes.

Recently, dryers have been designed to perform the drying process in a centralized manner, eliminating the need for a mechanism to supply and drain water to and from the clothes, and also eliminating the tub that holds water inside the cabinet. This simplifies the structure inside the dryer, and improves drying efficiency by supplying hot air directly to the drum that holds the clothes.

Such a dryer includes a drum that holds the clothes, a hot air supply unit that supplies hot air to the drum, and a drive unit that rotates the drum. This allows the dryer to supply hot air into the drum to dry the clothes held in the drum, and rotate the drum to evenly expose the surface of the clothes to the hot air. As a result, the entire surface of the clothes comes into even contact with the hot air, completing the drying process.

Meanwhile, in order for the drive unit to rotate the drum, it needs to be fixed inside the cabinet. Also, when rotating a rotating shaft connected to the drum, the drive unit needs to be connected parallel to the rotating shaft. However, dryers have the limitation that the drive unit cannot be fixed to a tub like a washing machine because there is no tub fixed inside the cabinet.

To solve this problem, dryers have been developed in which the drive unit is fixed to the back of the cabinet [see Japanese Patent Publication JPS55-081914A, Japanese Patent Publication JPS55-115455A, Japanese Patent Publication JPS57-063724A, Japanese Patent Publication JPS57-124674A].

Figure 1 shows the structure of a conventional dryer in which the drive unit is attached to the back of the cabinet.

This dryer includes a cabinet 1 that forms the exterior, a drum 2 that is rotatably mounted within the cabinet 1 and holds clothes, and a drive unit 3 that rotates the drum 2.

The drive unit 3 is disposed on the rear of the drum 2 to rotate the drum 2, or is coupled and fixed to the rear panel 11 that forms the rear of the cabinet 1. This allows the drive unit 3 to be fixed to the cabinet 1 and rotate the drum 2.

The drive unit 3 of the above-mentioned conventional dryers commonly includes a stator 31 fixed to the rear panel 11, a rotor 32 rotated by the stator 31, and a rotating shaft 33 coupled to the rotor 32 to rotate the drum 2, and a reducer 37 that increases the torque while decreasing the rpm of the rotating shaft 33 to rotate the drum 2.

All conventional dryers also include a fixing part 4 that fixes the drive unit 3 to the rear panel 11. The fixing part 4 includes either a first fixing part 41 that fixes the stator 31 to the rear panel 11 or a second fixing part 42 that fixes the rotating shaft 33 to the rear panel 11. This allows the conventional dryers to arrange the rotating shaft 33 connected to the drum 2 and the drive unit 3 in parallel, allowing the drum 2 to rotate stably.

However, because the cabinet's rear panel 11 is made of a thin steel plate, it easily deforms and vibrates even with a very small external force. In addition, the rear panel 11 receives the load of not only the drive unit 3 but also the drum 2 via the rotating shaft 33, making it difficult to maintain its shape.

In addition, if the clothes are eccentric inside the drum 2 or fall repeatedly into the drum 2 as it rotates, external forces are repeatedly transmitted to the rear panel 11, causing it to vibrate.

If vibrations or external forces are transmitted to the rear panel 11, causing it to bend or deform even temporarily, it can cause a problem in which the rotating shaft 33 connecting the drive unit 3 and the drum 2 becomes twisted. This can cause unnecessary vibrations and noise in the drive unit 3, and in severe cases, the rotating shaft 33 may be damaged. There is also the problem of unnecessary noise being generated in the process of the rear panel 11 bending or deforming.

In addition, as the rear panel 11 vibrates, the gap between the rotor 32 and the stator 31 may temporarily change, causing the rotor 32 to collide with the stator 31 and resulting in unwanted vibrations and noise.

When the drive unit 3 further includes a reducer 37, the rotating shaft 33 connected to the reducer 37 and the reduction shaft 33a connected from the reducer 37 to the drum 2 are separate from each other. In this case, the reducer 37 is supported by the rear panel 11 via the stator 31 and the rotating shaft 33. Therefore, even the slightest deformation of the rear panel 11 can cause problems such as the reduction shaft 33a and the rotating shaft 33 becoming twisted or misaligned.

In other words, the reduction shaft 33a connected to the drum 2 changes position less due to the load of the drum 2 than the rotation shaft 33 connected to the drive unit 3. Therefore, if the rear panel 11 temporarily bends or deforms, the degree to which the rotation shaft 33 and the reduction shaft 33a tilt will differ, causing the rotation shaft 33 and the reduction shaft 33a to become misaligned.

Therefore, in conventional clothing processing devices, the rotating shaft 33 and the reduction shaft 33a become misaligned every time the drive unit 3 is operated, making it impossible to guarantee the reliability of the reduction gear 37 and even risking damage to the reduction gear 37.

On the other hand, in order to directly connect the drive unit 3 to the drum 200 in a dryer, it is necessary to connect a rotating shaft that transmits the power of the drive unit 3 to the drum 200. However, as mentioned above, in conventional dryers, the specific structure for connecting the drive unit 3 to the drum 200 is not specified, so it is considered to apply a structure for connecting the drum 200 and drive unit 3 of a washing machine.

Figure 2 shows a dryer in which the drive unit is fixed to the bottom or base of the cabinet 1.

The dryer includes a cabinet 1 and a drum 2, a circulation flow path 5 that circulates the air in the drum 2 to the outside, and a heat pump 6 that is housed in the circulation flow path 5 and condenses and reheats the air. The water condensed by the heat pump 6 is collected in a water storage tank 9 using a pump 8.

On the other hand, even if vibration occurs in the drive unit 3 or an external force is temporarily transmitted through the drive unit 3, the bottom surface 12 of the cabinet 1 can be prevented from deforming or tilting.

Therefore, in conventional dryers, the drive unit 3 is disposed on the bottom surface 12 of the cabinet 1, or below the drum 2, and is fixed to a base that is fixed to the bottom surface of the cabinet 1. In such dryers, the drive unit 3 is not disposed parallel to the rotation axis of the drum 2, so another structure is further used to rotate the drum 2.

Specifically, the drive unit 3 includes a motor unit 34 fixed to the bottom surface of the cabinet 1, a rotating shaft 37 that rotates on the motor unit 34, a pulley 35 that rotates on the rotating shaft 37, and a belt 36 that connects the outer periphery of the drum 2 and the outer periphery of the pulley 35.

As a result, when the motor unit 34 rotates the rotating shaft 37, the pulley 35 rotates the belt 36, which in turn rotates 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, in this type of dryer, the diameter of the pulley 35 is much smaller than the diameter of the drum 2, so when the motor unit 34 rotates quickly, a slippage phenomenon occurs in which the belt 36 slips on the drum 2 or pulley 35. Therefore, this type of dryer has the problem of limiting the rotation speed of the motor unit 34 to a certain level or below, and there is a fundamental limitation in that the motor unit 34 must be gradually accelerated or decelerated to prevent the belt 36 from slipping when the drum 2 rotates.

Therefore, conventional dryers are unable to quickly change the rotation direction of drum 2, and are unable to control the rotation of drum 2, or are unable to change the rotation direction of drum 2.

As a result, this dryer has limitations in that the rotation direction and speed of drum 2 cannot be controlled as intended during the drying process, and drying efficiency cannot be maximized.

The problem that the present invention aims to solve is to provide a clothing treatment device that can maintain the rotational shaft of a motor that provides the rotational power to rotate the drum and a reducer that converts the rpm and torque of the rotational power.

The problem that the present invention aims to solve is to provide a clothing processing device in which the reducer and the motor can tilt or vibrate simultaneously.

The present invention aims to provide a clothing processing device in which the reduction gear and motor are fixed away from the rear of the cabinet.

The present invention aims to provide a clothing processing device in which the rotating shaft of the drum and the drive shaft of the drive unit are aligned or fixed based on the reducer.

The present invention aims to provide a clothing processing device in which the reducer is fixed inside the cabinet and the drive unit is fixed and supported by the reducer.

The problem that the present invention aims to solve is to provide a clothing treatment device that can maintain the same axis between the drive shaft that extends from the motor and the rotating shaft of the reducer that rotates by converting the RPM and torque of the rotating shaft.

The goal of this invention is to provide a clothing processing device that can control the drum rotation speed and direction even without the tub.

The problem that the present invention aims to solve is to provide a clothing processing device that can firmly fix the reduction gear.

The present invention aims to provide a clothing processing device that maintains the distance between the rotor and stator in the motor.

The present invention provides a clothing treatment device that is combined with a motor unit that provides power to rotate the drum and a reducer that converts the power of the motor unit.

The motor section is either directly connected to and supported by the reducer, or connected only to and supported by the reducer. This makes the reducer itself the vibration reference for the motor section.

The stator that generates a rotating magnetic field in the motor section is connected and fixed to the housing that forms the exterior of the reducer.

The reducer housing is connected to and supported by a rear cabinet connected to the rear surface of the drum. However, the stator may be disposed separately from the rear cabinet, or may be provided at a distance from the rear cabinet.

The reducer housing is at least partially inserted into the internal space of the stator, or is housed in the stator. This makes it possible to utilize the internal space of the stator and reduce the space occupied by the reducer alone.

In addition, by directly connecting the stator to the reducer housing and positioning the reducer housing inside the stator, the center of the rotor rotated by the stator can be easily aligned with the center of the reducer.

As a result, in the clothing treatment device according to the present invention, the drum, the reducer, the stator and the rotor form a single vibration system. The reducer is coupled to the stator, and the reducer is connected to the drum. Therefore, the reducer, the stator and the drum can form a vibration system together.

The drum, stator and rotor are separate and isolated from the rear cabinet.

In other words, the drum, stator, and rotor are tilted parallel to each other around the reducer and vibrate together.

The reducer acts as the point of action of a lever or seesaw in the vibration system, and since the reducer is supported on the rear cabinet, the rear cabinet can also act as the point of action.

Meanwhile, the drum is made of a flexible material so that its shape can be changed to a certain extent, and is made of a material with elasticity so that it can restore its shape. In addition, a part of the connecting shaft that connects the drum to the reducer may also be made of a flexible material.

In this case, the drum forms a vibration system separate from the reducer and the stator/rotor and can move independently. This makes it possible to prevent external forces from being transmitted to the stator and motor section when severe imbalance occurs within the drum or excessive vibration occurs within the drum.

On the other hand, the reducer and motor are separated from the external cover (rear panel) to prevent vibration.

In other words, the reducer and motor are positioned away from the rear panel of the cabinet.

That is, the reducer and motor are fixed and connected to each other, but are completely separate from the rear panel.

Of course, the reducer and motor can be supported in contact with at least the rear panel while connected to each other, but they do not have to be connected to the rear panel by a fixing member or the like.

Therefore, the reducer and motor are not affected by changes in shape or vibration of the rear panel, and the coaxiality is maintained based only on the reducer.

That is, the entire drive system remains coaxial and tilts or vibrates together.

Specifically, the reducer and the motor are fixed to each other to maintain maximum concentricity between the rotor shaft and drum shaft of the two-shaft reducer.

If concentricity is not achieved, not only will the reliability of the reducer itself be greatly reduced, but the gap between the stator and rotor will not be maintained constant, resulting in unnecessary noise and vibration.

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

The clothing treatment device according to the present invention includes a drum and a motor unit disposed behind the drum, a rear cabinet disposed between the drum and the motor, and a reducer coupled to the rear cabinet to transmit the power of the motor unit to the drum.

The clothing treatment device of the present invention is equipped with a front stopper that rotatably supports the front of the drum, and also includes a rear stopper that is positioned behind the drum.

The rear stopper contacts the back of the drum and supports the rear of the drum.

The rear stopper is placed at a standard distance (e.g. 2 mm) from the rear of the drum. This is to prevent wear on the rear stopper and to support the drum only when the drum is heavy.

The rear cabinet and the back of the drum are positioned at a distance greater than the standard distance.

The rear stopper is located between the rear cabinet and the drum, and supports the bottom end of the drum. The rear stopper is made of a roller/felt structure.

The rear cabinet is positioned between the reducer or motor unit and the drum. The rear cabinet is positioned between the rear stopper and the reducer or motor unit.

The rear cabinet is thicker and more rigid than the front cabinet or rear cover.

In the present invention, the belt that rotates the drum is omitted, and the drive unit is directly connected to the rear of the drum to rotate the drum. Therefore, a structure for installing and supporting the drum and drive unit is additionally required.

At this time, the rotating shaft that connects the drum to the drive unit rises or tilts when rotating.

The drive unit, including the reduction gear, is connected and fixed to the rear of the rear plate. This allows the drum to be placed in front of the rear plate and the drive unit to be placed behind it, distributing the weight.

The rear plate itself supports the load of the drum or drive unit, so not only is the load distributed to the front and rear of the rear plate, but the rear plate can also act as the point of action of the seesaw.

This allows the drum and drive unit to tilt and vibrate while remaining coaxial.

On the other hand, since the rear plate is made of a strong plate, a bracket is provided that can be connected to the rear plate to reinforce its rigidity.

The bracket consists of one or more pieces, is formed into a ring shape, and connects the reducer and the rear plate.

Brackets are also placed at the front and rear of the rear plate, allowing the reducer to be stably connected to the rear plate and strengthening the rigidity of the rear plate.

When the bracket consists of multiple brackets, some of the brackets are used to connect the reducer and the rear plate to reinforce the rigidity of the rear plate, and the other brackets are used to strengthen the connection force of the reducer.

It is possible to maintain the rotating shaft of a motor that provides the rotational force to rotate the drum and a reducer that converts the RPM and torque of the rotational force.

The reducer and motor can tilt and vibrate at the same time.

The present invention has the advantage that the reducer and motor are fixed away from the back of the cabinet.

The present invention has the effect of providing a clothing treatment device in which the rotating shaft of the drum and the drive shaft of the drive unit are aligned or fixed based on the reducer.

The present invention has the advantage that the reducer is fixed inside the cabinet and the drive unit is fixed and supported by the reducer.

The present invention has the effect of maintaining the same axis between the drive shaft that extends from the motor and the rotating shaft of the reducer, which rotates by converting the RPM and torque of the rotating shaft.

The present invention has the advantage of being able to control the rotation speed and direction of the drum in a clothing treatment device that does not require a tub.

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

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

FIG. 1 is a diagram showing an example of a conventional clothing processing device. FIG. 11 is a diagram showing another embodiment of a conventional clothing processing device. 1 is a diagram showing the appearance of a clothing processing device according to the present invention; 1 is a diagram showing the inside of a clothing processing device according to the present invention. FIG. 2 is a diagram showing the drum configuration of the clothing treatment device according to the present invention. 1 is a diagram showing an internal configuration of a clothing processing device according to the present invention; FIG. 2 is a diagram showing an embodiment of supporting the drum of the clothes treatment device according to the present invention. 4 is a diagram showing the structure of a rear case of the clothing processing device according to the present invention. FIG. 4 is a diagram showing the coupling structure between the reduction gear and the motor unit in the clothing processing device according to the present invention. FIG. 4 is a diagram showing a reduction gear of the clothing processing device according to the present invention. FIG. 4 is a diagram showing a process of connecting a motor unit to a reducer of the clothing processing device according to the present invention; FIG. A diagram showing the completed connection of the reduction gear and the motor unit in the clothing processing device of the present invention. 1 is a diagram showing a structure in which a reduction gear of a clothing processing device according to the present invention is connected to a rear case. 4 is a diagram showing a bracket structure of the clothing processing device according to the present invention. FIG. FIG. 13 is a diagram showing a structure in which the bracket is joined to a reducer. 13 is a diagram showing a structure in which the bracket is joined to the rear case. FIG. 13 is a diagram showing a structure in which a bracket fixes a reducer to a rear case. FIG. 2 is a diagram showing the internal configuration of a drive unit in the clothing processing device according to the present invention. FIG.

The embodiments described in this specification will be described in detail below with reference to the attached drawings. In this specification, the same or similar components are given the same or similar reference symbols even in different embodiments, and their description will be omitted. The singular expressions used in this specification include plural expressions unless they have a clearly different meaning in the context. In addition, in describing the present invention, if it is determined that a specific description of known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. The attached drawings are intended to facilitate an understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification should not be limited by the attached drawings.

Figure 3 shows the external appearance of the clothing processing device 10 according to the present invention.

The clothing treatment device of one embodiment of the present invention includes a cabinet 100 that forms the exterior.

The cabinet 100 includes a front panel 110 that forms the front surface of the clothing treatment device, and the front panel 110 includes an input port 111 that communicates with the drum 200 described below, and a door 130 that is rotatably connected to the cabinet to open and close the input port 111.

The front panel 110 is provided with a control panel 117. The control panel 117 is provided with an input section 118 through which a user inputs control commands, and a display section 119 that outputs information such as control commands selectable by the user. The control commands include drying courses or drying options that perform a series of drying steps. The control panel 177 is provided with a main control section that controls commands to perform the drying courses or drying options.

The input unit 118 includes a power supply request unit that requests power supply to the clothing processing device, a course input unit that allows the user to select a desired course from among multiple courses, and an execution request unit that requests the start of the course selected by the user.

The display unit 119 includes either a display panel capable of outputting text and graphics, or a speaker capable of outputting audio signals and sounds.

Meanwhile, the clothing treatment device according to the present invention includes a water storage unit 7 for separately storing moisture generated during the process of drying clothing. The water storage unit 7 includes a water storage tank that can be pulled out from one side of the front panel 110. The water storage tank collects condensed water transferred from a cleaning pump, which will be described later. Thus, a user can pull out the water storage tank from the cabinet 1, remove the condensed water, and then reattach it to the cabinet 100. Therefore, the clothing treatment device according to the present invention can be used even in places where there are no sewer pipes, etc.

On the other hand, the water storage section 7 is located at the top of the door 130. This means that the user has to bend slightly when pulling the water tank out from the front panel 110.

Meanwhile, the clothing treatment device according to the present invention further includes a steam section 195 that supplies steam to the clothing (or inside the cabinet). The steam section 195 generates steam from condensed water discharged from the clothing, or generates steam by receiving a supply of fresh water that is not condensed water. The steam section 195 generates steam by heating water, using ultrasound, or vaporizing it.

The steam section 195 generates steam by receiving a certain amount of water, and therefore occupies a certain volume. At this time, a door and a control panel 117 are provided on the front panel 110 of the cabinet, and a duct for supplying and discharging air to and from the drum and a water supply section are provided on the rear panel 120 of the cabinet. Therefore, it is advantageous to place the steam section 195 inside the side panel 140 of the cabinet.

The clothing treatment device according to the present invention also includes a steam control unit 800 for separately controlling the steam unit 195. The steam control unit 800 is provided on the control panel 117, but may be provided as a separate control panel to prevent overloading of the control panel 117 and to prevent increases in manufacturing costs.

The steam control unit 800 is installed adjacent to the steam unit 195. The steam control unit 800 is installed on the side panel 140 where the steam unit 195 is installed, and the length of the control lines connected to the steam unit 195 can be reduced.

Since the steam section 195 supplies the steam that comes into contact with the clothes, it is desirable to generate steam with fresh water. The water collected in the water reservoir 7 is generated from the clothes and may contain lint or other foreign matter, making it unsuitable for generating steam.

The clothing treatment device according to the present invention therefore includes 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 stores fresh water or receives a supply of fresh water from the outside and supplies it to the steam unit 195.

For example, the water supply unit 160 includes an external supply unit 180 that receives water from an external water source and delivers it to the steam unit 195, and an internal supply unit 170 that stores fresh water separately and supplies it to the steam unit 195.

The internal supply unit 170 includes a water tank 171 that is provided separately from the water storage unit 7 and stores fresh water. The water tank 171 and the steam unit 195 are installed at different heights so that water from the water tank 171 is supplied to the steam unit 195 by its own weight.

If the difference in installation height between the water tank 171 and the steam section 195 cannot be ensured, it is desirable to further provide a water pump 172. When the water pump 430 is provided, the space inside the cabinet 1 can be utilized more compactly.

The water supply section 160 therefore further includes a water pump 172 that supplies water from the water tank 171 to the steam section 195, and a tank housing 173 that mounts the water tank 171 and the water pump 172 within the cabinet.

The external supply unit 180 is connected to an external water source and includes a direct water valve through which water is supplied.

In addition, the clothing treatment device according to the present invention further includes a determination unit 196 that determines whether the external supply unit 180 or the internal supply unit 170 should be used preferentially to supply water to the steam unit 195.

The decision unit 196 decides whether to use the external supply unit 500 or the internal supply unit 400 with priority.

The water tank 171 stores fresh water. It is preferable that the water tank 171 be exposed to the outside of the cabinet 100 so that it can be refilled with fresh water at any time.

On the other hand, the water tank 171 may be provided in the cabinet 100 so that it can be pulled out. This allows the user to pull out the water tank 171 from the cabinet 100 and easily fill it with water.

The water tank 171 is pulled out through the front panel 110. However, if the water tank is also pulled out through the front panel 110, it is difficult to secure an area for pulling out the water tank 171 due to the area of the control panel 117 that is occupied by the front panel 110.

The water tank 171 can therefore be pulled out through the upper panel 130 to prevent interference with the control panel 117.

On the other hand, the water tank 171 and the water storage section 7 also store water, which may cause confusion among users. Therefore, in the clothing treatment device according to the present invention, the water tank 171 and the water storage section 7 may be exposed from the cabinet in different directions or positions.

That is, the water tank 171 is exposed to the upper panel 130, and the water storage section 7 is exposed to the front panel 11. This prevents users from confusing the water tank 171 with the water storage section 7 even if both are provided. In addition, the water tank 171 has a smaller volume than the water storage section 7 because it must store fresh water and maintain the freshness of the stored water. Therefore, users can distinguish between the water tank 171 and the water storage section 7 based on the difference in volume.

The water tank 171 has a smaller volume than the water storage section 7, and can therefore be easily pulled out from the top. Therefore, the water tank 171 can be provided so that it can be pulled out upward from the upper panel 130. As a result, the pull-out directions of the water tank 171 and the water storage section 7 are different from each other, further reducing the possibility of confusion by the user.

The upper panel 130 of the clothing treatment device according to the present invention is provided with a tank pull-out hole or pull-out hole 131 for exposing the water tank 171 to the outside or for pulling the tank 171 out of the cabinet. The tank pull-out hole 131 has a cross-sectional area corresponding to the cross-sectional area of the water tank 171 or slightly larger than the cross-sectional area of the water tank 171.

The upper panel 130 further includes a drawer cover 132 that covers the tank pull-out hole 131 to prevent the water tank 171 from being pulled out arbitrarily.

The clothing treatment device according to the present invention further includes a filter that removes foreign matter from the circulation flow path. The front panel 110 is provided with a filter mounting hole 113 through which the filter can be pulled out or inserted.

Figure 4 shows the inside of the clothing processing device according to the present invention.

The clothing treatment device of the present invention includes a drum 200 that is housed in a cabinet 100 and holds clothing, a drive unit (M) that rotates the drum 200, and a hot air supply unit 900 that supplies hot air to the drum 200.

The drum 200 is cylindrical and contains the clothes. In addition, since there is no need to put water into the drum 200, and no need to discharge the water condensed inside the drum 200 to the outside, the through holes provided along the circumference of the drum 200 can be omitted.

The driving unit (M) is directly connected to the drum 200 to rotate the drum 200. For example, the driving unit (M) is a DD (Direct Drive unit) type. As a result, the driving unit (M) can control the rotation direction or the rotation speed of the drum 200 by directly rotating the drum 200 without using components such as a belt and pulley.

Normally, in the case of a DD type washing machine, the drive unit (M) is connected and fixed to a tub that houses the drum 200, and the drum 200 is connected to the drive unit (M) and supported by the tub. However, in the clothing treatment device according to the present invention, the focus is on the drying process, so the tub that is fixed to the cabinet 100 to house the drum 200 is omitted.

Therefore, the clothing treatment device according to the present invention further includes a support part 400 for fixing or supporting the drum 200 or the driving part (M) within the cabinet 100.

The support unit 400 includes a front case 410 provided in front of the drum 200 and a rear case 420 provided behind the drum 200. The front case 410 and the rear case 420 are plate-shaped and are provided so that the front and rear of the drum 200 face each other. The distance between the front case 410 and the rear case 420 is set to be the same as the length of the drum 200 or longer than the length of the drum 200. The front case 410 and the rear case 420 are fixed and supported by the bottom surface of the cabinet 100 or the hot air supply unit 900 described later.

Since the input port of the drum 200 is located at the front, it is preferable that the driving unit (M) be located in the rear case 420 rather than the front case. The rear case 420 is formed so that the driving unit (M) is attached and supported in an area facing the rear surface of the drum 200. As a result, the driving unit (M) can rotate the drum 200 with its position stably fixed via the rear case 420.

Either the front case 410 or the rear case 420 supports the drum 200 so that it can rotate freely. Either the front case 410 or the rear case 420 houses the front end or the rear end of the drum 200 so that it can rotate freely.

For example, the front of the drum 200 is housed in the front case 410 and supported for free rotation, while the rear of the drum 200 is separated from the rear case 420 and is connected to a drive unit (M) attached to the rear case 420, and is indirectly supported by the rear case 420. This minimizes the area where the drum 200 comes into contact with or rubs against the support unit 400, preventing the generation of unnecessary noise and vibration.

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

The hot air supply unit 900 forms a circulation flow path that discharges the air inside the drum 200 to the outside and feeds it back into the drum 200, heating the circulating air and condensing the moisture in the circulating air to dry the clothes stored in the drum 200.

It is preferable that the hot air supply unit 900 is disposed at the bottom of the drum 200 so that the inlet of the drum 200 is disposed at a relatively high position and the user can easily remove the clothes from inside the drum 200.

The hot air supply unit 900 includes multiple heat exchangers that cool or heat the air flowing inside, and also includes a cleaning unit 940 that uses condensed water in the air to remove foreign matter from the heat exchangers.

The hot air supply unit 900 supplies air into the drum 200 through the front case 410 and expels the air toward the rear case 420.

A duct cover 430 is attached to the rear case 420 to guide the hot air supplied from the hot air supply unit 900 to the rear of the drum 200. The duct cover 430 exposes the driving unit (M) to the outside and cools the driving unit (M). The cabinet 100 further includes a shielding plate 120 that prevents the duct cover 430 and the driving unit (M) from being exposed to the outside, thereby preventing safety accidents.

The front-to-rear length (T1) of the cabinet is the length from the front case 410 to the rear panel 120. Strictly speaking, the length of the cabinet is from the front panel 120 to the rear panel 120, but since the length from the front case 410 to the rear panel 120 corresponds to the allowable space in which the internal structure of the clothing processing device according to the present invention is provided, the length of the allowable space (T1 = allowable length) is simply referred to as the length of the cabinet.

Once the allowable length (T1) is determined, the length (T2) of the drum 200 and the length (T3) of the drive unit are determined. The allowable length (T1) includes the drum length (T2) and the drive unit length (T3), and is equal to or less than the sum of the drum length (T2) and the drive unit length (T3).

On the other hand, if the rear panel 120 is omitted, the rear case 420 may form the rear of the cabinet.

Figure 5 shows the drum of a clothing treatment device according to the present invention.

The drum 200 of the clothing treatment device of the present invention is not indirectly rotated by being connected to a belt or the like, but is directly connected to a drive unit (M) and rotated. Therefore, unlike the drum of a conventional dryer, which is cylindrical with open front and rear ends, the drum 200 of the clothing treatment device of the present invention is closed at the rear and directly connected to a drive unit (M).

Specifically, the drum 200 includes a cylindrical drum body 210 that contains the clothes, and a drum rear surface 220 that is connected to the rear of the drum body 210 to form the rear surface of the drum.

The drum rear surface 220 shields the rear of the drum body 210 and provides a space that is directly connected to the driving unit (M). That is, the drum rear surface 220 is connected to the driving unit (M) and receives direct power to rotate the drum body 210. As a result, an input port 211 through which clothes are input is formed at the front of the drum body 210, and the rear is shielded by the drum rear surface 220.

A bushing part 300 that is connected to the driving part (M) is connected to the drum rear surface 220. The bushing part 300 is provided on the drum rear surface 220 and forms the center of rotation of the drum 200. The bushing part 300 may be formed integrally with the drum rear surface 220, but is made of a material that is more rigid and durable than the drum rear surface 220 so that it is firmly connected to the rotation shaft extending from the driving part (M). The bushing part 300 is connected to the center of the drum rear surface 220.

The drum rear surface 220 includes a circumferential portion 221 that is coupled to the outer circumferential surface of the drum body 210, and a seat portion 223 that is provided inside the circumferential portion 221 and is coupled to the driving portion (M). The seat portion 223 may include a through hole to which the bushing portion 300 is coupled and through which the bushing portion 300 is inserted.

Between the circumferential portion 221 and the sheet portion 223, there is a suction hole 224 that guides the hot air supplied from the hot air supply unit 900 so that it is introduced into the drum body 210. The suction hole 224 is made up of a number of holes that penetrate the drum back surface 220, or is made up of a mesh-like net.

To prevent the suction holes 224 from reducing the rigidity of the drum back surface 220, reinforcing ribs 225 are further provided to reinforce the rigidity of the drum back surface 220. The reinforcing ribs 225 extend radially from the outer circumferential surface of the seat portion 223 toward the inner circumferential surface of the circumferential portion 221. A circumferential rib 226 is further provided to extend in the circumferential direction of the drum back surface 220 so as to connect the reinforcing ribs 225 to each other. Suction holes 224 are arranged between the reinforcing ribs 225 and the circumferential rib 226, and between the seat portion 223 and the circumferential portion 221, so that the reinforcing ribs 225 and the circumferential rib 226 can maintain the shape of the drum back surface 220 even when a rotational force is transmitted from the drive unit (M) to the drum back surface 220.

Meanwhile, one or more reinforcing beads 212 are provided on the outer circumferential surface of the drum body 210 to reinforce the rigidity of the drum body 210. The reinforcing beads 212 are recessed or protruded inward or outward along the circumference of the drum body 210, and a plurality of reinforcing beads 212 may be spaced apart along the length of the drum body 210.

This prevents the drum body 210 from twisting even if a large amount of clothes is placed in the drum body 210 or a rotational force is suddenly transmitted via the drive unit (M).

As a result, the drum 200 of the clothing treatment device of the present invention is not rotated by a belt or the like, but by the rear surface 220 of the drum being directly connected to the drive unit (M).

Therefore, even if the driving unit (M) changes its rotation direction or the rotation speed is fast, the drum 200 of the clothing treatment device according to the present invention can immediately reflect this and rotate.

Figure 6 shows the internal configuration of the clothing processing device according to the present invention.

As described above, the drum 200 is cylindrical and includes a drum body 210 that is open at the front and rear, and a drum back surface 220 that is connected to the rear of the drum body 210 and blocks the rear of the drum body 210.

The bushing part 300 is directly connected to the rotating shaft extending from the drive part (M).

The front case 410 includes a front plate 411 that forms the main body, and an input communication hole 412 that penetrates the front plate 411 and accommodates the front of the drum body 210 or the input port 211. A gasket 413 that accommodates the drum body 210 is provided on the outer circumferential surface of the input communication hole 412.

The gasket 413 rotatably supports the inlet 211 of the drum body 210 and is capable of contacting the outer circumferential surface of the inlet 211. The gasket 413 prevents hot air from inside the drum 200 from leaking between the drum body 210 and the front plate 411. The gasket 413 is made of a plastic resin or an elastic material, and another sealing member is further bonded to the inner circumferential surface of the gasket 413 to prevent clothes or hot air from escaping to the front plate 411 through the inlet 211 of the drum body 210.

Meanwhile, a duct communication hole 419 is formed on the inner peripheral surface of the gasket 413 or the input communication hole 412, which communicates with the drum body 210 and through which the air input into the drum body 210 is discharged. A flow path is provided inside the front plate 411, connecting the duct communication hole 419 and the hot air supply unit 900. As a result, the duct communication hole 419 guides the air discharged from the drum body 210 to be supplied to the hot air supply unit 900.

The duct communication hole 419 is fitted with a filter member that prevents foreign matter and lint discharged from the drum 200 from entering the hot air supply section 900.

The front case 410 is provided with a front wheel 415 that is installed in contact with the outer circumferential surface of the drum body 210 and supports the drum 200 rotatably. The front wheels 415 support the outer circumferential surface of the input port of the drum body 210, and a plurality of front wheels 415 are installed at a distance along the outer circumferential surface of the input communication hole 412. The front wheels 415 support the lower part of the drum body 210 and rotate together with the drum 200 when it rotates.

In addition, a stopper 500 that prevents the drum body 210 from coming off is attached to the front case 410. The stopper 500 may be disposed on a stopper mounting portion 416 disposed on the front case 410 above the input communication hole 412.

The front case 410 is provided with a tank support hole 414 through which the water tank of the water tank 7 is pulled out or supported. The tank support hole 414 is provided in an area of the front panel 110 corresponding to the portion where the water tank 7 is disposed, and is formed by penetrating the front case 410.

A cutout 417 is provided at the bottom of the front case 410 and is supported by the hot air supply unit 900. The cutout 417 prevents the front case 410 from interfering with the hot air supply unit 900. The cutout 417 communicates with the supply duct of the hot air supply unit 900 and transmits the air in the drum supplied to the duct communication hole 419 to the hot air supply unit 900.

The hot air supply unit 900 includes a circulation flow path 920 through which the air discharged from the drum 200 circulates. The circulation flow path 920 is in the form of a duct arranged outside the drum 200. The circulation flow path 920 includes a supply duct 921 that communicates with the duct communication hole 419 and through which the air of the drum 200 is supplied, a moving duct 922 through which the air supplied from the supply duct 921 moves, and an exhaust duct 923 through which the air that has passed through the moving duct 922 is exhausted.

The supply duct 921 communicates with the cutout 417 of the front case 410 and communicates with a flow path provided within the front case 410. The moving duct 922 extends from the end of the supply duct 921 toward the rear of the drum 200, and the exhaust duct 923 is provided at the end of the moving duct 922 to guide air to the drum 200.

Meanwhile, a heat pump 950 for cooling or heating air is provided inside the hot air supply unit 900. The heat pump 950 includes an evaporator 951 that is provided inside the moving duct 922 and cools the air to condense moisture contained in the air, and a condenser 952 that is located downstream of the evaporator 951 or toward the exhaust duct 923 and reheats the air. The heat pump 950 further includes 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 is disposed outside the moving duct 922.

The evaporator 951 and condenser 952 consist of heat exchangers through which the refrigerant flows.

The hot air supply unit 900 further includes a connector 930 that communicates with the exhaust duct 923 and directs the hot air to the rear of the drum 200 or to the duct cover 430. The connector 930 is provided at the top of the exhaust duct 923 and directs the hot air that has passed through the condenser 952 and been heated to the rear of the exhaust duct 923.

Meanwhile, the hot air supply unit 900 further includes a blower fan 9531 that moves the air in the drum 200 to the supply duct 921 or blows the air that has passed through the exhaust duct 923 into the drum 200. The blower fan 9531 is installed in the exhaust duct 923 and is controlled by the main control unit together with the drive unit (M).

The rear case 420 includes a rear plate 421 that faces the front plate 411. The rear case 420 includes an attachment portion 429 to which the drive unit (M) is connected and placed. The attachment portion 429 passes through the rear case 420, and the drive unit (M) is attached to the attachment portion 429 and fixed inside the cabinet 100. The attachment portion 429 supports the load of the drive unit (M), and the drive unit (M) is provided at a position corresponding to the rear surface 220 of the drum.

The rear plate 421 further has an air movement hole 423 that is connected to the connector 930 and through which air flows in, and a communication hole 424 that discharges the air that has passed through the air movement hole 423 to the rear surface 220 of the drum.

A duct cover 430 is attached to the rear of the rear plate 421, forming a flow path that moves the air flowing in through the connector 930 to the intake hole 224 provided on the rear surface 220 of the drum.

The duct cover 430 is connected to the rear plate 421, but is separated from the intake hole 224 to form a space between the rear plate 421 and the duct cover 430 through which air can move.

The duct cover 430 covers all of the communication holes 424 so that none of the communication holes 424 are exposed to the outside. As a result, all air that flows into the duct cover 430 is discharged through the communication holes 424, preventing leakage to the outside. The duct cover 430 houses the driving unit (M) away from the outer periphery of the driving unit (M) to prevent interference with the driving unit (M), and exposes the driving unit (M) to the outside to induce cooling of the driving unit (M).

Meanwhile, since the duct cover 430 is heated by hot air and the driving unit (M) also has a rotating rotor, a rear panel 120 is arranged behind the duct cover 430 to shield it. The rear panel 120 is connected to the rear case 420 to prevent the duct cover 430 and the driving unit (M) from being exposed to the outside. It is arranged at a distance from the duct cover 430 and the driving unit (M).

The driving unit (M) includes a motor unit 600 that provides power to rotate the drum 200. The motor unit 600 includes a stator 610 that generates a rotating magnetic field, and a rotor 620 that rotates due to the stator 610.

The rotor 620 is an outer rotor type that houses the stator 610 and rotates around the stator 610. In this case, a rotating shaft may be coupled to the rotor 620 and directly connected to the drum 200 by passing through the stator 610 and the mounting portion 429. In this case, the rotor 620 directly transmits the power to rotate the drum 200.

Meanwhile, the rotor 620 is rotated by the stator 610 at a high RPM. For example, the rotor 620 rotates at a higher RPM than the RPM at which the clothes in the drum 200 can rotate while still adhering to the inner wall of the drum 200.

However, if the clothes inside the drum 200 continue to stick to the inner wall of the drum 200 as it rotates, the parts that are stuck to the inner wall of the drum are not exposed to the hot air, which reduces the drying efficiency.

If the rotor 620 rotates at a low RPM so that the clothes inside the drum 200 roll or are agitated instead of adhering to the inner wall of the drum 200, a problem occurs in which the power or torque generated by the drive unit (M) cannot be properly utilized.

Therefore, the driving unit (M) of the clothing treatment device according to the present invention further includes a reducer 700 that reduces the RPM to utilize the maximum output of the motor unit 600 while increasing the torque.

The reducer 700 connects the motor unit 600 and the drum 200. The reducer 700 converts the power of the motor unit 600 to rotate the drum 200. The reducer 700 is disposed between the motor unit 600 and the drum 200 and receives power from the motor unit 600, converts it, and transmits it to the drum 200. The reducer 700 converts the rotor RPM to a lower RPM, but increases the torque value and transmits it to the drum 200.

Specifically, the reducer 700 is connected to the drive shaft 630 that extends from the rotor unit 610 and rotates together with the rotor unit 610. Inside the reducer 700, a gear box is provided that rotates in mesh with the drive shaft 630 to change the rpm of the drive shaft 630 and increase the torque, and the gear box is connected to a rotating shaft 740 that is connected to the drum 200 and rotates the drum. Therefore, when the drive shaft 630 rotates, the rotating shaft 740 rotates at a lower RPM than the drive shaft 630, but can rotate with a greater torque.

The performance of the speed reducer 700 varies depending on whether the drive shaft 630 and the rotating shaft 740 are kept coaxial. In other words, if the drive shaft 630 and the rotating shaft 740 are misaligned, the connection between the parts constituting the gear box in the speed reducer 700 and either the drive shaft 630 or the rotating shaft 740 may loosen or be released. As a result, the power of the drive shaft 630 may not be properly transmitted to the rotating shaft 740, or the drive shaft 630 may spin freely.

Even if the drive shaft 630 and the rotating shaft 740 are temporarily misaligned, the gear box inside the reducer 700 will shift and collide, generating unnecessary vibrations and noise.

In addition, if the angle at which the drive shaft 630 and the rotating shaft 740 temporarily misalign becomes large, the gear box in the reducer 700 may come completely out of its correct position or may be damaged.

As a result, if the drive shaft 630 and the rotating shaft 740 cannot be kept coaxial with each other or are not arranged parallel to each other even temporarily, the performance of the reducer 700 cannot be guaranteed and the drum 200 cannot be rotated as intended.

Therefore, clothing processing devices equipped with a reducer usually have the reducer and motor attached 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, the tub that houses the drum is first fixed to the cabinet, and then the motor and reducer are secondarily fixed to a rigid bearing housing that is molded inside the tub using an injection molding method. In addition, a fixed steel plate connected to the tub is placed on the outside of the tub, and the motor and reducer are fixed to the fixed steel plate.

As a result, even if significant vibration occurs in the tub, the reducer and drive unit will tilt or vibrate together with the bearing housing and fixed steel plate. As a result, the reducer and drive unit themselves can always remain connected, and the drive shaft and rotating shaft can be kept coaxial.

However, since the clothing treatment device according to the present invention is a dryer, the structure of the tub fixed inside the cabinet is omitted. In addition, since the rear panel 120 of the cabinet is made of a relatively thin plate, even if the stator 610 is fixed, the rear panel 120 easily vibrates or bends due to the repulsive force when the rotor 620 or the drive shaft 630 rotates. If the rear panel 120 vibrates or bends temporarily, the rotating shaft 740 and the drive shaft 630, which are arranged in combination with the drum 200, bend, causing a problem of misalignment between the rotating shaft 740 and the drive shaft 630.

In addition, because the rear panel 120 is made of a thin steel plate, it is unable to support the reducer 700 and the motor unit 600 in their entirety. For example, if the reducer 700 and the motor unit 600 are connected to the rear panel 120 in parallel, a rotational moment is generated due to the overall length and weight of the reducer 700 and the motor unit 600, causing the reducer 700 to sag downward. As a result, the rotating shaft 740 connected to the drum itself becomes misaligned with the reducer 700, and is unable to maintain its coaxiality with the drive shaft 630.

In addition, the rear panel 120 cannot support the motor unit 600 itself. The weight of the motor unit 600 causes the side of the rear panel 120 on which the motor unit 600 is installed to bend downward. The rear panel 120 is not originally designed to be suitable for mounting the motor unit 600 itself.

Meanwhile, it is considered that the stator 620 is connected to the rear case 420 to support the motor unit 600. If a large amount of clothes is stored in the drum 200 or eccentricity occurs, the rotating shaft 740 may shift in accordance with the arrangement of the clothes every time the drum 200 rotates. In this case, since the stator 610 is separated from the drum 200 and fixed to the rear case 420, the rotating shaft 740 vibrates at a different amplitude or tilts at a different angle from the stator 610. Therefore, the rotating shaft 740 and the drive shaft 630 cannot maintain the same axis.

The drum 200 is supported by the front case 410 and the rear case 420, or the installation position is fixed at a constant level by the stopper 500 described below. Therefore, the position of the rotating shaft 740 connected to the drum 200 is also fixed at a constant level. Therefore, even if vibrations occur in the drum 200, the vibrations are buffered by either the front case 410 or the rear case 420 or the stopper 500.

However, when vibrations generated in the drum 200 are 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 is greater than the vibration amplitude of the rotating shaft 740. In this case, too, it is possible that the drive shaft 630 and the rotating shaft 740 may not be able to maintain their coaxiality.

To solve this problem, the clothing treatment device according to the present invention connects and fixes the motor unit 600 to the reducer 700. In other words, the reducer 700 itself serves as the reference point for the entire drive unit (M). That is, the reducer 700 serves as the reference for the vibration and tilt angle amount of the entire drive unit (M).

The motor unit 600 is not fixed to other components of the clothing treatment device, but is fixed only to the reducer 700. Therefore, if vibration or an external force is transmitted to the drive unit (M), and the reducer 700 tilts or vibrates, the motor unit 600 will always tilt or vibrate at the same time as the reducer 700.

As a result, the reducer 700 and the drive unit 600 form a single vibration system, and the reducer 700 and the drive unit 600 do not move relative to each other and can maintain a fixed state.

Of the drive unit 600, the stator 610 is directly connected and fixed to the reducer 700. This means that the position of the drive shaft 630 relative to the reducer 700 does not change. The centers of the drive shaft 630 and the reducer 700 are aligned with each other, and the drive shaft 630 rotates while remaining coaxial with the center of the reducer 700.

The above definition of coaxial and coincident does not mean perfectly physically coaxial and coincident, but is a concept that allows for a range of error recognized in mechanical engineering or a level that a person skilled in the art would recognize as coaxial or coincident. For example, the range in which the drive shaft 630 and the rotation shaft 740 are misaligned within 5° can be defined as being coaxial or coincident.

The drive shaft 630 rotates based on the reducer 700, but is fixed to prevent tilting, and the stator 610 is also fixed to the reducer 700, so the gap between the stator 610 and the rotor 620 is always maintained. As a result, collisions between the stator 610 and the rotor 620 are prevented, and noise and vibrations that occur when the center of rotation changes as the rotor 620 rotates around the stator 610 can essentially be blocked.

The rotating shaft 740 extends toward the drum 200 within the reducer 700, vibrates together with the reducer 700, and tilts together with the reducer 700. That is, the rotating shaft 740 is only provided to rotate with the reducer 700, and its position is fixed. As a result, the rotating shaft 740 and the driving shaft 630 are always arranged parallel to each other and form a coaxial structure. In other words, the center of the rotating shaft 740 and the center of the driving shaft 630 are maintained in a state of being aligned with each other.

The reducer 700 and the motor unit 600 are arranged along a first axis (S1) that is parallel to the ground when there is no load on the drum 200 or when the motor unit 600 is not operating. The drive shaft 630 and the rotation shaft 740 are also arranged parallel to the first axis (S1).

However, if vibrations occur in the drum 200 or the motor unit 600, the vibrations are transmitted to the reducer 700, causing the reducer 700 to vibrate or tilt, resulting in the reducer 700 temporarily tilting toward the second axis (S2).

At this time, since the motor unit 600 is connected to the reducer 700, it vibrates or tilts together with the reducer 700 and is arranged parallel to the second axis (S2). Therefore, the drive shaft 630 and the rotation shaft 740 are also arranged parallel to the second axis (S2).

As a result, even if the reducer 700 tilts, the motor unit 600 moves together with the reducer 700, and the drive shaft 630 and the rotating shaft 740 remain coaxial.

Therefore, the drive shaft 630 and the rotating shaft 740 are always inclined with respect to the reducer 700, so that the reducer 700 plays the role of the action point (P1) of a lever or seesaw. That is, the reducer 700 plays the role of the first action point (P1) of the vibration system including the motor unit 600. Meanwhile, the reducer 700 is connected to the drum 200 via the rotating shaft 740, and since the drum 200 is separated from the rear case 420, the load of the drum 200 is transmitted to the reducer 700. The reducer 700 can play the role of the reference or action point (P1) of the vibration system, with the system including not only the motor unit 600 but also the drum 200 forming one vibration system.

Even though the reducer 700 itself serves as the center or point of action (P1) of the vibration system, it must be fixed or supported within the cabinet 100.

To this end, the reducer 700 is connected and fixed to the rear case 420. In this case, the reducer 700 tilts or vibrates while connected to the rear case 420, so it can be said 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. Even in this case, the motor unit 600 is not directly connected to the rear case 420 even though it can come into contact with it, but is connected and fixed only to the reducer 700.

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

After the reducer 700, motor unit 600 and drum 200 are arranged in parallel along the first axis (S1), the reducer 700 becomes parallel to the third axis (S3). The third axis (S3) passes through the reducer 700 which is coupled to the rear case 420. At this time, since the reducer 700 and motor unit 600 are coupled, the motor unit 600 also becomes parallel to the third axis (S3).

As a result, the driving unit 600 and the drum 200 are connected to the reducer 700, and the driving unit 600 and the drum 200 are inclined parallel to each other or vibrate simultaneously based on the reducer 700.

In the clothing treatment device according to the present invention, the drum 200 is not connected to a belt, but is supported by the speed reducer 700. Therefore, when the drum 200 is rotated by the speed reducer 700, it is lifted upward or tilted downward by centrifugal force, etc.

To prevent this, the clothing treatment device according to the present invention further includes a stopper 500 that fixes the position of the drum 200. The stopper 500 includes a front stopper 510 disposed in front of the drum 200 and a rear stopper 520 disposed in the rear of the drum.

At this time, the drum 200 is lifted upward with respect to the rotation axis 740. Therefore, the front stopper 510 is positioned so as to contact the upper front part of the drum.

In addition, the drum 200 may sag due to the weight of the clothes. Therefore, the rear stopper 520 is positioned so that it contacts the rear bottom of the drum 200.

The front stopper 510 is connected to the mounting portion 416 of the front case 410, and the rear stopper 520 is supported on the top of the heat exchanger 900.

Figure 7 shows the stopper 500 that supports the drum 200 of the clothing treatment device according to the present invention.

The drum 200 rotates by being connected to the free end of the rotating shaft 740. The rotating shaft 740 is fixed to the reducer 700 to prevent it from slipping off the reducer 700.

However, the drum 200 may shift upward or downward due to the weight of the clothes or clothes falling during rotation. As a result, the drum 200 may shift upward or downward based on the free end of the rotating shaft 740.

In particular, the drum 200 vibrates or tilts separately based on the free end of the rotating shaft 740. That is, the drum 200 is made of a material that has elasticity and is allowed to deform to a certain degree. This prevents excessive vibrations or external forces from being transmitted to the rotating shaft 740, and prevents the alignment of the rotating shaft 740 and the drive shaft 630 from becoming misaligned.

In addition, since the drum 200 is not fixed by a belt or the like, when it rotates with clothes inside, excessive vibration energy is generated.

Meanwhile, a front case 410 and a rear case 420 are disposed in front and behind the drum 200. The front case 410 can avoid direct contact with the front of the drum 200 via the input communication hole 412 and the gasket 413. However, since the rear of the drum 200 is directly connected to the rotating shaft 740, the rear of the drum body 210 is shielded by the drum rear face 220, and the rear case 420 must be provided with an attachment part 429 for fixing the drive unit (M) in a part directly facing the drum rear face 220. In other words, the rear case 420 cannot be disposed with a through hole on one side facing the drum 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 of direct friction and collision between the drum back surface 220 and the rear case 420.

Specifically, the rear case 420 has many parts that interfere with the drum back surface 220 due to the drum accommodation groove 422, the air movement hole 423, and the mounting portion 429 described below. If the rear case 420 directly supports the drum 200 in such a situation, the drum back surface 220 and the rear case 420 may wear out or be damaged.

Therefore, the rear case 420 needs to be kept at a certain distance from the drum 200, and the rear case 420 itself cannot directly support the drum 200.

In addition, when the drum 200 is rotating with a large amount of clothes stored inside, since there is no belt or the like, it may move toward the front case 410 or rear case 420 while rotating.

Taking all of these factors into consideration, the clothing treatment device of the present invention further includes a stopper 500 that limits the movement of the drum 200 within an acceptable range.

The stopper 500 includes a front stopper 510 that is connected to the front case 410 and supports the front upper end of the drum, a support wheel 533 that is rotatably mounted on the front case 410 and supports the front lower end of the drum, and a rear stopper 520 that is connected to the rear case 420 and supports the rear lower end of the drum.

The drum 200 is supported and rotated by the drive unit (M) and the support wheel 533, and a front stopper 510 and a rear stopper 520 are provided to restrict the drum 200 only when it moves excessively. As a result, the front stopper 510 and the rear stopper 520 mitigate vibrations and temporary shocks of the drum 200, and the front stopper 510 and the rear stopper 520 can prevent the drum 200 from being damaged.

Referring to FIG. 7(a), the front stopper 510 includes a fixed plate 5111 connected to the stopper mounting portion 416 of the front case 410, a lever plate 5112 extending rearward from the fixed plate 5111, an extension plate 5113 extending downward from the lever plate 5112, a support plate 512 provided on the upper end of the drum 200 in front of the support plate 5113, and a felt 513 connected to the lower portion of the support plate 512 and in contact with the drum 200.

When the drum 200 is lifted upward, the front stopper 510 absorbs the impact of the drum 200 by lifting the lever plate 5112 and the extension plate 5113 upward to a certain level, and the felt 513 rubs against the front of the drum 200 to prevent the drum 200 from being lifted excessively upward.

The outer circumferential surface of the inlet 211 of the drum 200 extends to a diameter smaller than the drum body 210 and includes a grounding portion 213 with which the support wheel 533 and the felt 513 come into contact. This allows the felt 513 and the support wheel 533 to be accurately placed on the grounding portion 213, limiting the movement of the drum 200.

The front stopper 510 is disposed at a specific distance from the front upper end of the drum. The specific distance corresponds to a distance at which the drum 200 can come off the gasket 413 when rotating, or a range at which the drum 200 can excessively twist the rotating shaft 740.

Referring to FIG. 7(b), the front stopper 510 consists of a support plate 512 and a contact wheel 532 in which the felt 513 rotatably contacts the grounding portion 213.

This allows the support wheel 533 to support the lower part of the ground contact portion 213, and the contact wheel to support the upper part of the ground contact portion 213, preventing the drum 200 from coming off the input communication hole 412.

Referring to FIG. 7(c), the rear case 420 and the drum 200 are separated, and the rear stopper 520 and the driving unit (M) support the rear of the drum 200, and if the drum 200 approaches the rear case 420 too closely, the rear stopper 520 prevents it. As a result, damage caused by friction or contact between the rear case 420 and the drum 200 can be prevented.

The rear stopper 520 is disposed in front of the rear case 420 to prevent the drum rear surface 220 from contacting or colliding with the rear case 420. When clothes are stored in the drum 200 and it rotates, the drum 200 generates an external force that moves it not only upward or downward, but also forward or backward, because it is not fixed by a belt.

The rear case 420 supports the load of the drive unit (M), so it must be thicker or made of a material with greater rigidity than the front case 410. Therefore, when the drum 200 moves downward, the rear case 420 supports the movement of the drum 200 without cushioning it, and instead a repulsive force may be generated that pushes the drum 200 upward.

During this process, the drum 200 is strongly pressed against the front case 410, and in severe cases, the door 130 is forced open.

Therefore, the rear stopper 520 is spaced apart from the rear of the drum 200 by a certain amount, allowing the drum 200 to move rearward. This prevents the drum 200 from applying excessive pressure to the front case 410.

The standard distance is the distance at which the rear surface of the drum 200 and the rear stopper 520 can come into contact and support the drum 200 when the drum 200 contains more than the standard amount of clothes and is pushed backward as it rotates.

This allows the rear stopper 520 to support the drum 200 only when the drum 200 moves rearward by the reference distance, preventing the rear stopper 520 from wearing out. Felt that comes into contact with the drum 200 is attached to the rear stopper 520.

The drum 200 and the rear case 420 are also positioned at a distance greater than the standard distance.

The rear stopper 520 includes a support joint 521 that is supported by the bottom surface of the cabinet 100 or the hot air supply unit 900, a support leg 522 that extends from the support joint 521 toward the drum 200, an extension 524 that extends obliquely forward from the support leg 522, and a limiting portion 525 that extends from the extension 524 to face the rear surface 220 of the drum.

The support leg 522 further has an internal cutout groove 523 to enhance its rigidity.

The extension 524 extends obliquely from the support leg 522 to cushion the external force applied from the drum 200 to a certain level and to strengthen the overall rigidity of the rear stopper 520.

The extension 524 includes an inclined extension 5241 that extends forward from the support leg 522, and a straight extension 5242 that extends upward from the inclined extension 5241.

The limiting portion 525 includes a separation portion 5251 that extends rearward from the linear extension portion 5242 and is spaced apart from the drum rear surface 220, and a load support portion 5252 that is arranged to face the lower portion of the drum rear surface 220 at the separation portion 5251.

To reinforce the rigidity of the load support portion 5252, a curved portion 5253 is further provided by bending the free end of the load support portion 5252.

The rear stopper 520 can be prevented from directly contacting the rear of the drum 200 by the separation portion 5251. Instead, the drum 200 is allowed to move toward the rear at a certain level.

As a result, the rear case 420 is positioned between the rear stopper 520 and the reducer 700 or the drive unit 600.

Meanwhile, the rear stopper 520 is disposed at a certain distance from the bottom of the drum. The certain distance corresponds to the distance at which the drum 200 deviates from the sealing portion 490 or the distance at which the rotating shaft 740 is excessively distorted.

That is, the straight extension portion 5242 is positioned at a certain distance from the rear of the drum 200.

Figure 8 shows the structure of the rear case 420 according to the present invention.

The motor unit 600 is connected and fixed to the reducer 700, and although the reducer 700 itself serves as the reference for the position and vibration of the driving unit (M), the reducer 700 needs to be supported and positioned on the back of the drum 200 in order to rotate the drum 200.

The reducer 700 is therefore placed on the rear case 420 and supported within the cabinet 100. However, the motor unit 600 and the drum 200 are disposed apart from the rear case 420. This prevents the motor unit 600 or the drum 200 from moving separately from the reducer 700 due to interference with other components other than the reducer 700.

As a result, the rear case 420 acts as the point of action of a seesaw in a vibration or rotation system that includes the reducer 700, the motor unit 600, and the drum 200.

The rear case 420 includes a rear plate 421 disposed on the rear side of the drum 200 and facing the front plate 411, and a drum housing groove 422 protruding from the rear plate 421 to face the drum rear side 220. The drum housing groove 422 is spaced from the drum rear side 220 and protrudes from the rear plate 421 with a diameter and depth that partially accommodates the outer circumferential surface of the drum rear side 220. That is, the drum housing groove 422 protrudes from the rear plate 421 by a first height (L1) so that the drum rear side 220 is partially accommodated in front of the rear plate 421. The drum housing groove 422 is provided with a plurality of communication holes 424 that face the suction holes 224 of the drum rear side 220 and through which air passes. Between the communication holes 424, reinforced bent portions 426 are provided to enhance rigidity. The reinforcing bends 426 are recessed or protruded 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 accommodation groove 422 accommodates the drum rear surface 220, the hot air discharged from the communication holes 424 is guided to be supplied to the suction hole 224. Meanwhile, the clothing treatment device according to the present invention further includes a sealing part 450 that seals between the drum accommodation groove 422 and the drum rear surface 220, and the sealing part 450 is accommodated and attached in the drum accommodation groove 422.

As a result, the drum accommodation groove 422 not only strengthens the rigidity of the rear plate 421, but also provides space in which the sealing portion 450 can be installed.

The mounting portion 490 is recessed into the drum accommodating groove 422 in the direction opposite to the direction in which the drum accommodating groove 422 protrudes. The mounting portion 490 is recessed from the inner peripheral surface of the drum accommodating groove 422 by a depth L2. By recessing the mounting portion 490 into the drum accommodating groove 422, the rigidity of the drum accommodating groove 422 can be strengthened while at the same time strengthening the overall rigidity of the rear plate 421.

In addition, the mounting part 490 is recessed forward from the drum receiving groove 422 by L2, so that it is positioned closer to the drum rear surface 220. This reduces the distance between the reducer 700, which is attached and fixed to the mounting part 490, and the drum rear surface 220, and accordingly reduces the length of the rotating shaft 740 connecting the reducer 700 and the drum rear surface 220. This not only ensures the durability of the rotating shaft 740, but also reduces the angle range in which the rotating shaft 740 distorts.

In addition, the mounting part 490 is recessed into the drum receiving groove 422, but is formed to be larger in diameter than the reducer 700 and the driving part 600. As a result, at least a portion of the reducer 700 and the motor part 600 is received in the mounting part 490, thereby reducing the overall thickness of the cabinet 100.

The mounting portion 490 includes a shaft through hole 4291 through which the rotating shaft 740 extending from the reducer 700 passes, a mounting surface 4292 provided on the outer circumferential surface of the shaft through hole 4291 and supporting the reducer 700, and a mounting groove 4294 extending rearward from the mounting surface 4292 to the drum housing groove. The mounting surface 4292 is provided with a fastening portion 4293 that is connected to the reducer 700 or a connecting portion 800 that connects the reducer 700 to the mounting surface 4292.

Meanwhile, the mounting groove 4294 accommodates at least a part of the reducer 700 or the motor unit 600. Accordingly, the wire support groove 4295, in which the wires that supply current to the stator 610 are placed, is formed by being recessed outward from the mounting groove 4294. The mounting groove 4294 is formed to be larger than the diameter of the driving unit (M).

The rear case 420 further includes an air movement hole 423 that transfers the hot air supplied from the connector 930 to the duct cover 430. The air that flows into the air movement hole 423 flows along the duct cover 430 into the communication hole 424.

Figure 9 shows how the motor section 600 of the clothing treatment device according to the present invention is connected to the reducer 700.

The reducer 700 is attached and supported by the mounting portion 429 to rotate the drum 200. The stator 610 is directly connected and fixed to the reducer 700 and is spaced apart from the mounting portion 429. The rotor 620 is supported by the reducer 700 via a drive shaft 630 connected to the reducer 700 to rotate the stator 610.

By connecting the stator 610 to the reducer 700, the reducer 700 and the motor unit 600 are arranged coaxially (S) in parallel. The motor unit 600 has its center of rotation arranged coaxially (S), and the reducer 700 also has its center of rotation arranged coaxially (S).

As a result, the rotor 620 also rotates about the same axis (S), and the rotating shaft 740 extending from the reducer 700 can also rotate about the same axis (S).

The reducer 700 is directly coupled to the stator 610 so as to fix it. The stator 610 is disposed away from the rear case 420 or away from the mounting portion 429.

Of course, the stator 610 may be supported in contact with the rear case 420, or may be further coupled to the rear case 420 if it is directly fixed to the reducer 700.

The stator 610 is connected to the reducer 700, which converts the rpm of the drive shaft 630 to rotate the rotating shaft 740, so that the drum 200 can also rotate around the same axis (S).

Even if the reducer 700 vibrates or rotates and the coaxial axis (S) becomes misaligned, the drive shaft 630 and the rotating shaft 740 are arranged parallel to the coaxial axis (S).

As a result, the reducer 700 is connected and fixed to the rear case 420.

The reducer 700 is connected to the rear of the rear case 420, and the drum 200 is disposed in front of the rear case 420, so that the rear case 420 is disposed between the drum 200 and the reducer 700.

The reducer 700 rotates the drum through the drum rotation shaft 740 which passes through the rear case 420 and supports the drum load via the drum rotation shaft 740.

The rear case 420 is disposed between the drum 200 and the motor unit 600. The reducer 700 is disposed between the drum 200 and the motor unit 600 and is supported by the rear case 420.

At this time, the drum 200 and the motor unit 600 are disposed completely separated from the rear case 420. Therefore, the reducer 700 serves as the support center for the drum 200 and the motor unit 600.

In addition, the drum 200 is disposed at a distance in front of the rear case 420, and the motor unit is disposed at a distance behind the rear case 420. The reducer 700 penetrates the rear case from the rear and is connected to connect the motor unit 600 and the drum 200 to each other.

Therefore, the drum 200 and the motor unit 600 can transmit at least a portion of the load to the rear case 420 via the reducer 700.

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

In addition, since the stator 610 is fixed to the reducer 700, the drive shaft 630 tilts together with the reducer 700 or vibrates simultaneously with the reducer 700.

Figure 10 shows the external appearance of the reducer 700.

The reducer 700 includes reducer housings 710, 720 that form the exterior and house a gearbox inside. The reducer housing includes a first housing 710 that faces the motor unit 600 and a second housing 720 that faces the drum 200.

Referring to FIG. 10(a), most of the gearbox in the reducer 700 is housed inside the first housing 710, and the second housing 720 shields the inside of the reducer 700. This allows the overall thickness of the reducer 700 to be reduced and the length of the drum 200 to be further extended.

The second housing 720 includes a blocking body 722 that blocks the first housing 710, a connecting body 721 that extends around the blocking body 722 and is connected to the first housing 710, and a shaft support portion 723 that supports the rotating shaft 740 in the blocking body 722.

The blocking body 722 is disk-shaped, and the connecting body 721 extends from the blocking body 722 with a constant thickness toward a portion of the first housing 710.

Of course, the connecting body 721 may be provided on the first housing 710 and connected to the blocking body 722.

The shaft support 723 prevents the rotating shaft 740 from shifting and maintains the alignment of the rotating shaft 740 and the drive shaft 630.

The connecting body 721 has a certain thickness and is provided with a fastening portion 780 that fixes the reducer 700 to the stator 610 or the mounting portion 429.

The fastening portion 780 protrudes outward from the combined body 721 and is formed integrally with the combined body 721. The fastening portion 780 includes either a fastening protrusion 781 that is coupled to the stator 610 or a coupling protrusion 782 that is coupled to the mounting portion 429. A plurality of fastening protrusions 781 are provided at intervals along the outer circumferential surface of the combined body 721 and are disposed at equal angular intervals based on the shaft receiving portion 713.

Referring to FIG. 10(b), the first housing 710 is formed in multiple stages to accommodate gears of various diameters. In general, a gearbox coupled to the reducer 700 includes a sun gear, planetary gears that revolve around the sun gear, and a ring gear that accommodates the planetary gears and allows the planetary gears to rotate. The first housing 710 is coupled to the second housing 720 and includes a ring gear housing 711 that accommodates the ring gear, and a planetary gear housing 712 that extends from the ring gear housing 711 away from the second housing 720 and accommodates one end of the planetary gear.

The planetary gear housing 712 is formed with a smaller diameter than the ring gear housing 711. However, the center of the planetary gear housing 712 and the center of the ring gear housing 711 are arranged coaxially (S) with each other.

A drive shaft 630 is connected to the planetary gear housing 712, which is rotatably connected to the rotor 620. The drive shaft 630 is inserted into the first housing 710 and is rotatably supported by a gear box within the first housing 710.

The cleaning part 640, which rotatably supports the rotor 620, is placed on one side of the planetary gear housing 712, and a cleaning protrusion 7121 is provided to which the cleaning part 640 is coupled and fixed. The planetary gear housing 712 also has a cleaning coupling hole 7122 to which the cleaning part 640 is rotatably coupled.

The cleaning protrusions 7121 and cleaning coupling holes 7122 are provided in multiple numbers and spaced at a certain angle from the drive shaft 630.

The fastening protrusion 781 is formed thicker and has a larger cross-sectional area than the connecting protrusion 782. This strengthens the connecting force between the fastening protrusion 781 and the stator 610, making it easier to withstand vibrations transmitted from the stator 610.

The stator 610 is placed on the fastening protrusion 781 and is connected to the fastening protrusion 781 by a separate fixing member. The fastening protrusion is formed with a fastening protrusion hole 7811 into which a fixing member is fastened, which penetrates the stator 610, and the fastening protrusion hole 7811 has a screw thread formed therein to connect with the fixing member.

Figure 11 shows the structure in which the stator 610 is connected to the reducer 700.

The stator 610 includes a ring-shaped main body 611 that is fixed to the reducer 600, a fixing rib 612 that extends from the inner circumferential surface of the main body 611 and is coupled to the fastening protrusion 781, teeth 614 that extend from the outer circumferential surface around the main body 611 and around which a coil is wound, pole shoes 615 that are provided at the free ends of the teeth 614 and prevent the coil from coming off, and a terminal 616 that controls the supply of current to the coil.

The main body 611 has an internal storage space 613, and a plurality of fixing ribs 612 are provided in the main body 611 at a certain angle apart from the storage space 613. The inside of the fixing rib 612 includes a fixing rib hole 6121 in which a fixing member that is coupled to the fastening protrusion 781 is provided.

The stator 610 is directly connected to the reducer 700, so that the reducer 700 is at least partially housed and connected to the stator 610.

In particular, when the reducer 700 is housed in the stator 610, the overall thickness of the driving unit (M) is reduced, and the volume of the drum 200 can be further expanded. In addition, when the reducer 700 is housed in the stator 610, the rotating shaft 740 of the reducer 700 and the driving shaft 630 can be more precisely maintained coaxially.

For this reason, the reducer 700 is formed to have a smaller diameter than the main body 611. That is, the first housing 710 and the second housing 720 are formed to have a maximum diameter smaller than the diameter of the main body 611. As a result, the reducer 700 is disposed with at least a portion housed in the main body 611. However, the fastening protrusion 781 extends to overlap the fixing rib 612 in the reducer housing. As a result, the fastening protrusion 781 is coupled to the fixing rib 612, and a portion of the first housing 710 and the second housing 720 can be positioned within the main body 611.

The fixing rib 612 includes a first fixing rib 612a that is directly connected to the fastening protrusion 781, and a second fixing rib 612b that is not directly connected to the fastening protrusion 781 but supports the fastening protrusion 781 and the first housing 710.

The coupling protrusion 782 is positioned offset from the fastening protrusion 781 to prevent interference with the fastening protrusion 781.

Figure 12 shows the structure in which the motor unit 600 is connected to the reducer 700.

The stator 610 is coupled to the reducer 700. It may be coupled to one side of the reducer 700, or to a fastening protrusion 781 protruding outward from the housing of the reducer 700, so that at least a portion of the reducer housing is housed inside the main body 611. This allows the center of the main body 611, the center of the reducer 700, and the rotating shaft 630 to always remain coaxial.

Meanwhile, the rotor 620 houses the stator 610 with a certain distance between it and the pole shoe 615. The rotor 620 is fixed to the reducer 700, whose drive shaft 630 is housed in the main body 611, so the gap (G1) between the rotor 620 and the stator 610 is always maintained.

This prevents the rotor 620 and the stator 610 from colliding with each other or from rotating in a temporarily distorted state, preventing the generation of unnecessary noise and vibration.

On the other hand, a first imaginary diameter line (D1) passing through the center of the reducer 700 and the center of the drive shaft 630, a second imaginary diameter line (D2) passing through the center of the main body 611, and a third imaginary diameter line (D3) passing through the center of the rotor 620 are all located at the rotation center of the drive shaft 630.

As a result, the reducer 700 itself becomes the center of rotation of the drive shaft 630, and the stator 610 is directly fixed to the reducer 700, preventing the drive shaft 630 from becoming misaligned with the reducer 700. As a result, the reliability of the reducer 700 can be guaranteed.

Figure 13 shows the structure for mounting the reducer 700 on the rear case 420.

The motor unit 600 is connected and fixed to the reducer 700, which is fixed to the mounting portion 429 of the rear case 420.

Of course, as long as the motor unit 600 of the clothing treatment device according to the present invention can be connected and fixed to the reducer 700, the reducer 700 can be supported in any configuration.

The reducer 700 is directly connected and fixed to the mounting part 429, but the mounting part 429 is generally thin because it is processed by pressing the rear case 420. Therefore, if the reducer 700 is directly connected to the mounting part 429, it is not easy for the mounting part 429 to fix the reducer 700. In particular, if the motor part 600 is also connected to the reducer 700, the load of the motor part 600 is also transmitted to the mounting part 429. Therefore, the mounting part 429 may bend due to the driving part (M), and durability cannot be guaranteed.

Therefore, the clothing treatment device according to the present invention further includes a bracket 800 that reinforces the rigidity of the mounting portion 429 and enhances the durability of the entire rear case 420. The bracket 800 is formed to be thicker than the rear case 420 and is made of a material with greater rigidity than the rear case 420.

The bracket 800 is connected to the mounting portion 429 in face-to-face contact to reinforce the rigidity of the mounting portion 429, and is connected to the reducer 700 to fix the reducer 700 to the mounting portion 429.

The reducer 700 may be connected to the bracket 800 while being connected to the mounting portion 429, or may be connected only to the bracket 800 and fixed to the mounting portion 429.

The bracket 800 is connected to the mounting portion 429 and includes a main bracket 810 that is also connected to the reducer housing. The main bracket 810 supports the reducer 700 while being fixed to the mounting surface 4292.

The main bracket 810 includes a number of mounting ribs 814 that are directly connected to the reducer 700, and the mounting ribs 814 include mounting rib holes 8143 to allow a fixing member to be fastened to the reducer 700 to be connected.

The main bracket 810 includes a fixing protrusion 8111 formed to engage with a fastening portion 4293 provided on the mounting surface 4292. The fastening portion 4293 is recessed from the mounting surface 4292, and the fixing protrusion 8111 is inserted into the fastening portion 4293 to prevent the main bracket 810 from rotating at the mounting portion 429 or changing its installation position due to vibration, etc.

The reducer 700 is connected to the main bracket 810 and separated from the mounting part 429, thereby blocking noise and vibrations that may occur when the mounting part 429 and the reducer 700 collide.

However, since the reducer 700 receives power from the motor unit 600 and the gear box rotates inside, considerable vibrations are generated. Vibrations are also transmitted to the reducer 700 by the drum 200. Therefore, it is necessary to improve the connection strength between the main bracket 810 and the reducer 700.

For this purpose, the bracket 800 further includes an auxiliary bracket 820 which is connected to both the main bracket 810 and the reducer 700 to fix the reducer 700 to the main bracket 810.

The main bracket 810 and the auxiliary bracket 820 are connected to surround the reducer 700. The main bracket 810 is connected to one side of the reducer 700, and the auxiliary bracket 820 is connected to the other side of the reducer 700 to fix both sides of the reducer 700.

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

The auxiliary bracket 820 may be connected to the mounting portion 429, or may be connected and fixed to the main bracket 810. Since the main bracket 810 has greater rigidity than the mounting portion 429, the auxiliary bracket 820 is more stable when connected to the main bracket 810.

Figure 14 shows one embodiment of a structure in which the bracket 800 and the reducer 700 are connected.

Referring to FIG. 14(a), the coupling protrusions 782 are smaller in area, size, or thickness than the fastening protrusions 781, but may be formed in greater numbers than the fastening protrusions 781.

The coupling protrusions 782 are offset from the fastening protrusions 781. The coupling protrusions 782 may also be parallel to the fastening protrusions 781 or at different heights.

The coupling protrusion 782 is formed in a plate shape so as to be supported by the bracket 800 or to be in surface contact with the bracket 800, and is provided with a coupling protrusion hole 7821 to which a fastening member that is fastened to the bracket 800 is connected.

Referring to FIG. 14(b), the main bracket 810 includes a main body 811 formed in a ring shape and placed on the mounting surface 4292. The main body 811 has a diameter corresponding to the mounting surface 4292 so as to be in surface contact with the mounting surface 4292.

The fixing protrusions 8111 are provided around the main body 811 and are spaced apart at the same angle from the center of the main body 811. The fixing protrusions 8111 may be supported by fastening portions 4293 provided on the mounting surface 4292.

Meanwhile, the main body 811 is fixed to the mounting surface 4292 by a fastening member. At this time, a fastening hole to which the fastening member is coupled is formed penetrating the main body 811.

However, since the fixing protrusion 8111 is formed by bending or recessing the main body 811, it has a higher shock and vibration absorption capacity than the main body 811. Therefore, the fastening hole is formed in the fixing protrusion 8111, and the fastening member penetrates the fixing protrusion 8111 and is coupled to the mounting surface 4292.

A disk-shaped sheet body 912 is provided on the inner peripheral surface of the main body 811. The sheet body 912 is formed with a diameter smaller than the diameter of the mounting surface 4242 and is an area that does not contact the mounting surface 4242.

While the main body 811 is intended to be connected and fixed to the mounting portion 429, the seat body 912 extends from the inner circumferential surface of the main body 811 to support the load of the reducer 700.

The seat body 912 is bent and extends from the inner peripheral surface of the main body 811, strengthening the rigidity of the main bracket 810 and enabling it to effectively support the load of the reducer 700.

The reducer 700 may be directly coupled to the seat body 912. That is, the coupling protrusion 782 of the reducer may be coupled to the seat body 912.

However, if the diameter of the seat body 912 is relatively large, the inner peripheral surface of the seat body 912 is provided with an installation rib 814 that protrudes inward.

The installation rib 814 is formed with an area larger than the connecting protrusions 782, and is formed with a width corresponding to the circumferential direction larger than the length protruding from the seat body 912. This allows the installation rib 814 to stably support the load of the reducer 700. The installation ribs 814 are provided in a number corresponding to the connecting protrusions 782, and are provided with installation rib holes 81413 corresponding to the connecting protrusion holes 7821.

The mounting rib 814 may extend parallel to the seat body 912, or may extend axially from one surface of the seat body 912. The mounting rib 814 protrudes from the seat body 912 in a direction toward the reducer 700.

This prevents the reducer 700 from excessively protruding outside the bracket 800. In addition, when the main bracket 810 is fastened to the auxiliary bracket 820, the combined body 782 placed on the installation rib 814 can be guided to be more closely attached to or accommodated in the auxiliary bracket 820.

Referring to FIG. 14(c), the auxiliary bracket 820 includes an auxiliary body 821 formed in a ring shape and placed on the base 812, and a shielding body 822 extending inward from the auxiliary body 821.

The auxiliary body 821 is not in contact with the main body 811, but is placed on the base 812. For this reason, the auxiliary body 821 is formed with a diameter corresponding to the base 812. This makes it possible to prevent the auxiliary bracket 820 from interfering with the mounting portion 429 even when the main bracket 810 and the auxiliary bracket 820 are connected via the mounting portion 429.

The auxiliary body 821 is supported in direct contact with the base 812 and is connected to the base 812 by a separate fastening member. That is, the base 812 has a base hole 8121 through which the fastening member passes and is connected, and the auxiliary body 821 has an auxiliary body hole 8211 at a position corresponding to the base hole 8121.

The shielding body 822 shields the mounting rib 814. That is, the shielding body 822 extends to a thickness that completely shields the mounting rib 814 inside the base 812. The shielding body 822 shields the reducer coupling body 782 placed on the mounting rib 814, and is configured to simultaneously shield one side of the coupling body 782.

The shielding body 822 is formed to be in close contact with the installation rib 814 and the connecting body 782 when the auxiliary body 821 is connected to the base 812. That is, the connecting body 782 is disposed between the shielding body 822 and the installation rib 814, and the connecting body 782 is fixed to and supported by the shielding body 822 and the installation rib 814.

Meanwhile, the shielding body 822 includes a rib receiving groove 8221 formed with an area corresponding to the installation rib 814 and recessed to receive the installation rib 814.

The rib accommodating grooves 8211 are provided in a number corresponding to the number of mounting ribs 814, and are provided at positions corresponding to the mounting ribs 814. The rib accommodating grooves 8211 are provided to accommodate all of the mounting ribs 814, or to press one side of the mounting ribs 814.

When the auxiliary bracket 820 is connected to the main bracket 810, the installation rib 814 and the connecting protrusion 782 are inserted into the rib receiving groove 8211 and fixed.

The coupling protrusion 782 is fixed by being pressed against or pressed against the installation rib 814 and the rib receiving groove 8211.

This prevents the auxiliary bracket 820 from shifting from the main bracket 810, and the coupling protrusion 782 is also fixed to the rib accommodating groove 8211 and the installation rib 814, ensuring that the reducer 700 is stably fixed.

The shielding body 822 is prevented from overlapping with the fastening protrusion 781 and further includes a deceleration avoidance hole 8222 that exposes the fastening protrusion 781. The fastening protrusion 781 is exposed from the deceleration avoidance hole 8222, so that the stator 610 is stably coupled to the fastening protrusion 781.

The shielding body 822 further includes a wire avoidance groove 8223 to allow the wire connected to the terminal 816 to pass through.

Meanwhile, the shielding body 822 is provided to shield a portion of the surface of the first housing 710 of the reducer 700. This prevents the reducer 700 from falling out of the bracket 800 even when subjected to vibration or impact.

The auxiliary bracket 820 further includes a support hole 824 into which the cleaning protrusion 7121 protruding from the first housing 710 of the reducer 700 is inserted, and is provided with a protrusion fastening hole 825 into which the through protrusion 8141 protruding from the installation rib 814 and inserted into the auxiliary bracket 820 is inserted.

Figure 15 shows how the bracket 800 is connected to the reducer 700.

Referring to FIG. 15(a), the main bracket 810 is first connected to the reducer 700 to fix the reducer 700. The connecting protrusion 782 extending from the reducer housing is placed on the mounting rib 814 of the main bracket 810. The connecting protrusion 782 and the mounting rib 814 are connected by a fastening member.

At this time, the fastening protrusion 781 is positioned to avoid the installation rib 814 or is exposed inside the main bracket 810.

Referring to FIG. 15(b), when the reducer 700 is placed on the main bracket 810, the auxiliary bracket 820 is coupled to the main bracket 810.

The auxiliary body 821 is connected to the base 812, and the shielding body 822 shields the internal space between the reducer 700 and the base 812.

In the shielding body 822, the rib receiving groove 824 receives the installation rib 814 on which the connecting rib 782 is placed. The connecting rib 782 is disposed and supported between the rib receiving groove 824 and the installation rib 814. As a result, the connecting rib 782 can be prevented from being arbitrarily separated from the installation rib 814.

The shielding body 822 is formed so that the fastening protrusion 781 is exposed to the outside through the deceleration avoidance groove 8222. As a result, even if the bracket 800 fixes the reducer 700, the motor unit 600 and the reducer 700 are not hindered from being connected to each other.

The reducer 700 is connected to the main bracket 810 and is sufficiently fixed. The auxiliary bracket 820 strengthens the connection between the main bracket 810 and the reducer 700 and prevents the reducer 700 from accidentally separating from the main bracket 810.

The reducer 700 is fixed to the main bracket 810 and the auxiliary bracket 820, and is stably fixed to the mounting part 429 even if there is no separate structure for fixing it to the mounting part 429.

In addition, the reducer 700 may not be directly connected to the mounting part 429, but may be fixed and supported by the bracket 800 and connected to the mounting part 429. This allows the reducer 700 to be stably fixed to the mounting part 429 even when connected to the motor part 600.

Figure 16 shows how the bracket 800 is connected to the rear case 420.

Referring to FIG. 16(a), the main bracket 810 is connected to the mounting portion 429 in front of the rear case 420.

When the drum 200 rotates with clothes stored inside, the drum 200 can exert a pushing force toward the reducer 700. In particular, the drum 200 is designed to be pressed toward the front case 410 or prevented from moving, so that the door cannot be opened by the clothes.

At this time, the main body 811 is attached to one side of the mounting surface 4292 that does not face the motor unit 600 so that the reducer 700 does not come off to the rear of the rear case 420. Therefore, the main bracket 810 can fix the reducer 700 so that the reducer does not move by being pushed toward the motor unit 600.

The main bracket 810 is connected to the front of the mounting part 429, facing the drum rear surface 220. The mounting part 429 protrudes from the rear case 420 toward the drum 200. Therefore, in the main bracket 810, the main body 811 is connected and fixed to one side of the mounting surface 4292 of the mounting part 429 that protrudes toward the drum 200.

The fixing protrusion 8111 protruding from the main body 811 is accommodated in the fastening portion 4293 formed on the mounting surface 4292. Of course, the fastening portion 4293 may be accommodated on the opposite side of the fixing protrusion 8111. Since the fixing protrusion 8111 is formed by being pressed from the main body 811, the opposite side becomes an accommodating groove.

Therefore, the fastening portion 4293 may protrude from the mounting surface 4292 toward the drum 200, and may also protrude away from the drum 200. The fixing protrusion 8111 is formed to protrude in the same direction as the fastening portion 4293 so as to be placed on the fastening portion 4293.

The main body 811 is joined to the mounting surface 4292 in surface contact, which has the effect of increasing the thickness of the mounting surface 4292. In addition, the main body 811 prevents the mounting surface 4292 from bending, which has the effect of strengthening the rigidity of the mounting surface 4292.

When the auxiliary bracket 820 is attached to the main bracket 810, the shielding body 822 of the auxiliary bracket 820 is exposed in front of the rear case 420.

Referring to FIG. 16(b), the auxiliary bracket 820 is connected to an area exposed to the mounting portion 429 of the main bracket 420 at the rear of the rear case 420 to secure the reducer 700. Since the main body 811 is connected to the mounting surface 4292 of the main bracket 420, only the base 812 is exposed to the mounting portion 429.

The auxiliary bracket 820 is therefore coupled to the base 812 to secure the reducer 700.

As a result, the main bracket 810 is connected to the front of the rear case 420, and the auxiliary bracket 820 is connected to the main bracket 810 behind the rear case 420.

As a result, the auxiliary bracket 820 is formed with a smaller diameter than the mounting surface 4292 to centrally assist the reduction gear 700 in being attached to the main bracket 810.

Figure 17 shows the structure in which the reducer 700 is connected and supported by the rear case 420.

The main body 811 of the main bracket 810 is connected to the front of the mounting surface 4292, and the base 812 forms a step in the main body 811 or a groove is formed in which the portion extending from the main body 811 is bent to a certain extent, thereby strengthening the overall rigidity of the main bracket 810.

The installation rib 814 includes an extension surface 8141 that extends from the base 812 at an angle 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 and supports the connecting rib 782.

The support surface 8142 has fixing holes 8413 to which fastening members are attached.

The mounting rib 814 further includes a through projection 8144 extending from the support surface 8142 toward the auxiliary bracket 820.

The reducer 700 is connected by placing the coupling protrusion 782 extending from the reducer housing 710 on the support surface 8142.

The auxiliary bracket 800 has an auxiliary body 821 that is connected to the base 812, and the shielding body 822 includes an inclined surface 824 that is recessed from the installation rib along the inclination of the extension surface 8141. The inclined surface 824 extends at an angle to a rib receiving groove 8221 that receives the installation rib 814.

The shielding body 822 has a protrusion fastening hole 825 into which the through-protrusion 8144 is inserted and fixed. The through-protrusion 8144 passes through and is supported in the protrusion fastening hole 825. The through-protrusion 8144 and the protrusion fastening hole 825 make it easy to determine the position where the auxiliary bracket 820 and the main bracket 810 are connected. The through-protrusion 8144 may pass through the connection body 782.

The mounting portion 429 includes a mounting groove 4294 that recesses forward from the drum housing groove 423, and the mounting surface 4292 extends from the inside of the mounting groove 4294.

At this time, the main bracket 810 and the auxiliary bracket 820 are fixed to the mounting surface 4292, so that at least a portion of the first housing 710 of the reducer is accommodated and positioned in the mounting groove 4294.

For example, the gear box 730 housed in the first housing 710 and the second housing 720 is positioned inside the mounting groove 4294.

As a result, the volume occupied by the rear case 420 and the reduction gear 700 can be minimized.

Figure 18 shows one embodiment of the drive unit (M) of the clothing treatment device according to the present invention.

A bracket 800 is connected to the rear case 420, and the reducer 700 is connected to and supported by the bracket 800. The motor unit 600 is disposed behind the reducer 700 and the rear case 420, and the drum rear surface 220 is disposed in front of the rear case 420 and the reducer 700.

The stator 610 of the motor section 600 is disposed away from the rear case 420, and the terminals 616 that supply current to the stator 610 are disposed near the rear case 420 or may be in contact with the rear case 420 but are not connected or fixed to the rear case 420.

The rotor 620 includes a permanent magnet 623 facing the stator 610, an installation body 622 to which the permanent magnet 623 is coupled and spaced apart from the outer circumferential surface of the stator 610, and a rotor body 621 extending from the installation body 622 and rotating opposite the stator 610. The rotor body 621 is formed in a disk shape larger than the diameter of the stator 610, and the installation body 622 is arranged so that the outer circumferential surface of the rotor body 621 accommodates the outer circumferential surface of the stator 610. A drive shaft 630 is coupled to the center of the rotor body 621, and a number of inlet holes are formed through between the drive shaft 630 and the installation body 622 to inject air into the stator 610.

The drive shaft 630 is connected to a stud 631 that is connected to the center of the rotor body 621 and extends into the reducer 700.

A cleaning unit 640 that rotatably supports the inner surface of the rotor body 621 is connected to the drive shaft 630. The cleaning unit 640 includes a combined cleaning unit 642 that is connected to the drive shaft 630, and a supporting cleaning unit 641 that supports the rotor body 620 at the combined cleaning unit 642.

The cleaning section 640 prevents the rotor 620 and the drive shaft 630 from becoming distorted while rotating.

Of course, the cleaning unit 640 may not be connected to the rotor 620, but may be connected to the reducer 700 to support the rotor 620 so that it can rotate freely.

The first housing 710 of the reducer 700 faces the rotor body 620, and the second housing 720 is connected to the first housing 710 and faces the drum back surface 220.

A gear box 730 is provided inside the first housing 710 and the second housing 720. The gear box 730 includes a sun gear 731 provided on or coupled to the free end of the drive shaft 630, at least one planetary gear 732 that rotates in mesh with the sun gear 731, a ring gear 733 that is coupled to the outer periphery of the planetary gear 732 to guide the rotation of the planetary gear 732, and a carrier 734 that rotatably supports the multiple planetary gears 732.

The planetary gears 732 are arranged around the sun gear 731, and each planetary gear 732 includes a first planetary body 7321 that rotates in mesh with the sun gear 731 and the ring gear 733, a second planetary body 7322 that is formed with 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 sun gear 731 rotates, the planetary gear 732 rotates, causing the gear shaft 7323 to rotate, thereby rotating the carrier 734.

The carrier 734 includes 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 first carrier 7341 and the second carrier 7342 are formed in a ring or disk shape.

Meanwhile, a rotation shaft 740 extends from the center of rotation of the second carrier 7342. The rotation shaft 740 is either integral with the second carrier 7342 or is connected to and extends from the second carrier 7342.

The first housing 710 includes a ring gear housing 711 that fixes the outer circumferential surface of the first planetary body 732 or the outer circumferential surface of the ring gear 733, a planetary gear housing 712 that extends from the ring gear housing 711 to rotatably accommodate the second planetary body 732 and the first carrier 7341, and a shaft housing portion 713 that extends from the planetary gear housing 712 and rotatably supports the drive shaft 630.

The ring gear housing 711 forms the side of the first housing 710, and the planetary gear housing 712 forms a part of the side of the first housing 710 and one surface facing the rotor 620. The shaft accommodating portion 713 is formed in a pipe shape extending inside the planetary gear housing 712. The shaft accommodating portion 713 is disposed in a space in which the second planetary body 732 is formed with a smaller diameter than the first planetary body 731. A drive bearing 770 that rotatably supports the drive shaft 630 is provided on the inner peripheral surface of the shaft accommodating portion 713. A plurality of drive bearings 770 are provided at intervals along the length of the drive shaft 630.

As a result, the drive bearing 770 and the shaft receiving portion 713 do not protrude outside the reducer 700, but are arranged inside the reducer 700, thereby reducing the space in which the drive shaft 630 is arranged. In other words, the volume of the reducer 700 itself is reduced, and the space between the reducer 700 and the motor portion 600 can also be reduced.

As a result, the overall thickness of the drive unit (M) can be reduced, and the stator 610 can be connected closer to the reducer 700 to prevent distortion of the drive shaft 630.

In addition, by disposing the drive bearing 770 and the shaft housing 713 inside the reducer 700, the drive shaft 630 approaches the reducer 700 and the reducer 700 is housed and disposed inside the stator 610. As a result, at least a portion of the reducer 700 can be disposed by utilizing the space of the motor section 600.

As a result, the length of the drum 200 disposed between the rear case 420 and the front case 410 can be further extended, thereby increasing the volume of the drum 200.

Meanwhile, the second housing 720 includes a combined body 721 that is combined with the ring gear housing 711, a blocking body 722 that blocks the gear box 730 in the combined body 721, and a shaft support part 723 that extends from the blocking body 722 and rotatably supports the rotating shaft 740. The shaft support part 723 is formed in a pipe shape that extends from the blocking body 722, and a shaft bearing 760 that rotatably supports the rotating shaft 740 is provided inside the shaft support part 723.

Multiple shaft bearings 760 are provided at regular intervals along the length of the rotating shaft 740.

The free end of the rotating shaft 740 is inserted into and coupled to the drum rear surface 220. At this time, the rotating shaft 740 and the drum rear surface 220 are arranged as close as possible. One of the shaft bearings 760 may be arranged in front of the drum rear surface 220.

When the drive shaft 630 is rotated by the rotor 620, the sun gear 731 rotates and the planetary gear 732 rotates in mesh with it. The first planetary body 7321 rotates in mesh with the ring gear 733, but because the ring gear 733 is fixed, the first planetary body 7321 rotates around the sun gear 731 due to a reaction force.

The 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, the planetary gear 732 meshes with the sun gear 731, so even if it meshes with the sun gear 731 and rotates in the opposite direction, as the planetary gear 732 rotates with the ring gear 733, the carrier 734 rotates in the same direction as the sun gear 731 due to a reaction, and ultimately the rotating shaft 740 rotates in the same direction as the sun gear 731.

However, because the diameter of the outer circumferential surface of planetary gear 732 and the diameter of carrier 734 are larger than the diameter of sun gear 731, rotating shaft 740 rotates at a lower rpm than sun gear 731. Therefore, rotating shaft 740 rotates at a lower rpm than drive shaft 630. However, since no energy is wasted except through friction loss, the power transmitted to drive shaft 630 is transmitted to rotating shaft 740. Therefore, the torque, which is the rotational force, is amplified as the rotation speed of rotating shaft 740 decreases.

The reducer 700 converts the power corresponding to low torque and high rpm generated by the motor unit 600 into power corresponding to high torque and low rpm, so it can be said that the reducer 700 converts the power of the motor unit 600 and transmits it to the drum 200.

Meanwhile, the axial direction a of the drive shaft 630 and the axial direction b of the rotation shaft 740 are coaxial with each other. At this time, the drive shaft 630 is supported within the reducer 700, and the stator 610 is also fixedly connected to the reducer 700, so the direction a between the drive shaft 630 and the reducer 700 is almost always maintained.

At this time, the gear box 730 is fixed in the reducer 700 using a gear coupling method, and the rotating shaft 740 is also fixed in the gear box 730 by the reducer housing 720 and the bearing 770, so the direction b in which the rotating shaft 740 extends from the reducer 700 is always maintained.

Therefore, the a direction and the b direction form a coaxial structure, and the rotating shaft 740 and the driving shaft 630 can be maintained coaxially in most cases.

The rotating shaft 740 and the drive shaft 630 tilt together with the reducer housing or vibrate simultaneously with the reducer housing.

The present invention can be modified and embodied in various forms, and the scope of the rights is not limited to the above-mentioned embodiments. Therefore, if a modified embodiment includes the elements of the claims of the present invention, it can be said to fall within the scope of the rights of the present invention.

Claims (20)

a drum having an inlet through which garments are inserted and configured to receive the garments through the inlet ;
a motor section configured to rotate the drum;
A reducer is provided between the motor unit and the drum and configured to convert a rotation speed and a torque of the motor unit ,
The reducer includes a fastening portion at which the motor portion is fastened to an outer surface of the reducer to be fixed,
A clothing processing device, wherein the motor portion is coupled to the fastening portion so as to be fixed to the reduction gear. The motor unit includes:
a stator configured to generate a rotating magnetic field;
a rotor configured to rotate by the rotating magnetic field;
a drive shaft coupled to the rotor and inserted into the reducer;
The clothing processing device according to claim 1 , wherein the stator is coupled to the fastening portion so that the position of the drive shaft disposed in the reduction gear is fixed. The clothing processing device according to claim 2 , wherein the stator is coupled to and fixed at the fastening portion , and the position of the drive shaft disposed in the reducer is fixed to maintain a distance between the stator and the rotor. The reducer includes:
a reduction gear housing that accommodates the drive shaft therein and supports the drive shaft so as to be freely rotatable;
a gearbox disposed within the reducer housing and configured to mesh with the drive shaft to change the rotational speed of the drive shaft;
a rotating shaft extending from the gear box and coupled to the drum,
The fastening portion is provided on the reducer housing,
The clothing treatment device of claim 2 , wherein the stator is coupled to the fastening portion so as to be fixed to the reducer housing. The clothing processing device according to claim 4, wherein the reducer housing supports the rotating shaft and maintains an alignment between the rotating shaft and the drive shaft. The clothing processing device according to claim 5, wherein the reducer housing includes a shaft support portion that extends in the longitudinal direction of the rotating shaft and rotatably supports the rotating shaft to prevent the rotating shaft from shifting. The motor unit includes:
a stator coupled to the fastener and configured to generate a rotating magnetic field;
a rotor configured to rotate by the rotating magnetic field;
a drive shaft coupled to the rotor and inserted into the reducer;
The clothing treatment device of claim 1 , wherein the stator and the drive shaft are configured to tilt together with the reducer or to vibrate together with the reducer. The reducer includes:
a reducer housing that accommodates and rotatably supports the drive shaft;
a gearbox disposed within the reducer housing and configured to mesh with the drive shaft to change the rotational speed of the drive shaft;
a rotating shaft extending from the gear box and coupled to the drum,
The fastening portion is provided on the reducer housing,
The clothing processing device of claim 7 , wherein the rotating shaft and the drive shaft are configured to tilt together with the reducer housing or to vibrate together with the reducer housing. The motor unit includes:
a stator coupled to the fastener and configured to generate a rotating magnetic field;
a rotor configured to rotate by the rotating magnetic field;
a drive shaft coupled to the rotor and inserted into the reducer;
The clothing processing device according to claim 1 , wherein the stator is coupled to the reducer while housing at least a portion of the reducer therein. The clothing processing device according to claim 9, wherein at least a portion of the drive shaft is disposed within the stator. The clothing treatment device of claim 9 , wherein a portion of the reducer is disposed within the rotor. The clothing processing device of claim 9 , wherein the fastening portion includes one or more fastening protrusions coupled to an inner circumferential surface of the stator. a drum having an inlet through which garments are inserted and configured to receive the garments through the inlet ;
a motor section configured to rotate the drum;
A reducer that connects the motor unit and the drum and is configured to convert a rotation speed and a torque of the motor unit ;
a rear case disposed between the drum and the motor unit and supporting the reducer;
The reduction gear is coupled to and fixed to the rear case,
A clothing processing device , wherein the motor unit is coupled to the reduction gear and positioned away from the rear case . The clothing processing device according to claim 13, wherein the drum and the motor unit are configured to transmit at least a portion of a load to the rear case via the reduction gear. The clothing processing device according to claim 14 , wherein the motor unit, the reducer and the drum are configured to tilt or vibrate simultaneously with respect to the rear case. The clothing processing device according to claim 14, wherein the drum and the motor unit are disposed apart from the rear case. The reducer further includes a rotating shaft coupled to the drum,
The device of claim 13, wherein the drums are configured to oscillate or tilt separately about the axis of rotation. The clothing treatment device according to claim 17, wherein the drum is made of a material that provides elasticity. The clothing treatment device of claim 17, further comprising a hot air supplier disposed outside the drum and configured to supply hot air into the drum. The clothing treatment device of claim 13, further comprising a hot air supplier disposed outside the drum and configured to supply hot air into the drum.

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