CN113493995B - Outer barrel of washing machine and washing machine - Google Patents

Abstract

The invention belongs to the technical field of household appliance production, and particularly relates to an outer barrel of a washing machine and the washing machine, which at least partially solve the problem that a barrel opening of the outer barrel of the existing washing machine is easy to deform. The outer tub of the washing machine of the present invention includes: the washing machine comprises a barrel body and an annular reinforcing part, wherein the barrel body is used for containing washing water; the surface of annular reinforcement is laminated with the surface of the lateral wall of staving to form an organic whole piece through the mode of moulding plastics with the staving, annular reinforcement sets up in the bung hole position that is close to the staving. The invention also provides a washing machine, which comprises a box body, the outer barrel of the washing machine, which is arranged in the box body, and an inner barrel which is rotatably arranged in the outer barrel. Through the position that is close to the bung hole with the annular reinforcement at outer bucket lateral wall injection molding, not only increased the intensity at outer bucket bung hole position, avoided the outer bucket bung hole position of washing machine to warp, improved the life of outer bucket, owing to the surface laminating of this annular reinforcement and the lateral wall of staving moreover, also do benefit to the injection molding of outer bucket.

Description

Washing machine outer tub and washing machine

Technical field

The invention belongs to the technical field of home appliance production, and specifically relates to a washing machine outer tub and a washing machine.

Background technique

At present, as the pace of life accelerates, more and more people choose to use washing machines to clean clothes, thus saving a lot of time in washing clothes by hand.

An existing washing machine, taking a pulsator washing machine as an example, includes an outer tub for containing wash water, an inner tub rotatably installed inside the outer tub, and a pulsator rotatably installed at the bottom of the inner tub. Through the rotation of the pulsator, the water in the inner barrel is driven to generate eddy currents. At the same time, the inner barrel also rotates, causing friction between the clothes and the washing water and the inner wall of the inner barrel, thus realizing the cleaning of the clothes.

However, during long-term use of the existing washing machine outer barrel, the barrel mouth of the outer barrel is prone to deformation and interference with the inner barrel, resulting in shortened service life.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the mouth of the outer barrel of the existing washing machine is easily deformed, resulting in a shortened service life of the outer barrel, the present invention provides an outer barrel of a washing machine, which includes: a barrel made of plastic And an annular reinforcement made of metal; the barrel is used to hold wash water; the surface of the annular reinforcement is fit with the surface of the side wall of the barrel, and is injection molded with the barrel. The annular reinforcing member is arranged close to the barrel mouth of the barrel body.

In the preferred technical solution of the above washing machine outer tub, the inner surface of the annular reinforcement is in contact with the outer surface of the side wall, and the outer surface of the barrel is also provided with at least two first connecting ribs. The first connecting rib extends in the axial direction parallel to the outer barrel and wraps a part of the annular reinforcement; the barrel body, the annular reinforcement and the first connecting rib are formed into one piece by injection molding .

In the preferred technical solution of the above-mentioned outer tub of the washing machine, the bottom of the outer tub is provided with at least one boom seat for fixing a boom, and the boom seat is provided with at least one second boom seat toward the mouth of the outer tub. Connecting ribs, the second connecting ribs wrap a part of the annular reinforcement; the barrel, the annular reinforcement, the first connecting ribs, the boom seat and the second connecting ribs are made by injection molding to form an integrated piece; and/or, the axial cross-section of the annular reinforcing member is circular, oval or rectangular, and the reinforcing ring is a cast aluminum reinforcing ring made of cast aluminum.

In the preferred technical solution of the above-mentioned outer barrel of the washing machine, it also includes a heating device installed on the barrel; the heating device includes a coil, and the coil is used to generate an alternating magnetic field under alternating current excitation to heat the barrel. body, and inner barrel made of metal.

In the preferred technical solution for the outer tub of the washing machine, the heating device further includes a housing and a terminal; the housing is tightly connected to the barrel; the terminal is located outside the housing and connected to the housing. Fastening connection for electrical connection with AC power supply; the coil is arranged in the housing, and the input end and output end of the coil extend from the housing and are electrically connected to the terminal.

In the preferred technical solution of the above washing machine outer tub, the housing is installed on the top of the tub; and/or the housing is in a closed ring shape.

In the preferred technical solution of the above washing machine outer tub, a drainage valve installation port is provided at the bottom of the outer tub, and a drainage valve component is installed in the drainage valve installation port. The drainage valve component includes a valve plug, and the drainage valve component controls The valve plug reciprocates to open or close the drain port of the inner barrel.

In the preferred technical solution for the outer tub of the above-mentioned washing machine, the middle part of the valve plug is set to be hollow, and a temperature sensing component is installed on the top of the valve plug. The temperature sensing component communicates with the controller through a wire passed through the valve plug. Electrically connected, the controller is used to control the working state of the heating device according to the temperature signal sensed by the temperature sensing element.

In the preferred technical solution of the above-mentioned washing machine outer tub, the bottom of the barrel is provided with at least one cable fixing bracket integrally formed with the barrel for fixing cables located inside the washing machine box; and/or, A cable groove is provided in the middle of the cable fixing frame for fixing cables.

The present invention also provides a washing machine, which includes a box body, an outer tub of the washing machine as described above arranged in the box body, and an inner tub rotatably arranged in the outer tub.

Those skilled in the art can understand that the outer tub of the washing machine provided by the present invention includes a tub body made of plastic and an annular reinforcing member made of metal; the tub body is used to hold wash water. When the washing machine drains water after washing, the washing water is directly discharged from the outer barrel to the outside of the machine. The surface of the annular reinforcing member is in contact with the surface of the side wall of the barrel and is tightly connected with the side wall of the barrel. The annular reinforcing member is arranged close to the barrel mouth of the barrel body. Through the above arrangement, the mouth of the barrel is supported by an annular reinforcing member, which improves the strength of the mouth of the barrel and makes the mouth of the outer barrel less likely to deform during long-term use, thereby improving the durability of the outer barrel. service life.

Description of the drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.

Figure 1 is a schematic structural diagram of an outer tub of a washing machine provided in Embodiment 1 of the present invention;

Figure 2 is a top view of Figure 1;

Figure 3 is a schematic structural diagram of another washing machine outer tub provided in Embodiment 1 of the present invention;

Figure 4 is a schematic diagram of the outer tub of the washing machine in Figure 3 from another perspective;

Figure 5 is a schematic structural diagram of another washing machine outer tub provided in Embodiment 2 of the present invention;

Figure 6 is an exploded view of the outer barrel of the washing machine in Figure 5;

Figure 7 is a cross-sectional view along the vertical direction of the heating device provided in Embodiment 2 of the present invention;

Figure 8 is a partially enlarged schematic diagram of Figure 7;

Figure 9 is a schematic structural diagram of the drainage valve component provided in Embodiment 2 of the present invention;

FIG. 10 is a cross-sectional view along the A-A direction of FIG. 9 .

In the drawings: 1. Annular reinforcement; 2. Barrel body; 21. First connecting rib; 22. Boom seat; 221. Second connecting rib; 222. Third connecting rib; 23. Cable fixing frame; 231 , Cable trough; 24. Drainage hole; 25. Gathering trough; 26. Guidance trough; 27. Drain valve installation port; 28. Locking component installation port; 29. Cavity; 291. Tracheal inlet; 3. Heating device; 31. Terminal; 32. Shell; 33. Coil; 34. Screw seat; 4. Drain valve parts; 41. Valve plug; 42. Temperature sensing part; 43. Wire.

Detailed ways

First of all, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application situations.

Secondly, it should be noted that in the description of the present invention, terms such as "inner" and "outer" indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for convenience of description. It is not intended to indicate or imply that the device or component must have a specific orientation, be constructed and operate in a specific orientation, and therefore is not to be construed as a limitation of the invention.

In addition, it should be noted that in the description of the present invention, unless otherwise clearly stated and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrally connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be an internal connection between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Some existing pulsator washing machines include an outer tub for containing wash water and a rotatable inner tub installed inside the outer tub. A rotatable pulsator is provided at the bottom of the inner tub. Through the rotation of the pulsator, friction is generated between the clothes and the washing water and the inner wall of the inner barrel to clean the clothes. However, the mouth of the outer barrel has no support. During long-term use, the mouth of the outer barrel is easily deformed, resulting in a shortened service life of the outer barrel.

In the washing machine provided by the invention, an annular reinforcement made of metal is fixed on the side wall of the outer tub. Specifically, the annular reinforcement is fixed on the barrel near the mouth of the barrel, and the annular reinforcement supports the mouth of the barrel to resist deformation of the mouth of the barrel. That is to say, through the above configuration, during long-term use of the washing machine outer barrel, the mouth of the barrel body is not easily deformed, which increases the service life of the washing machine outer barrel.

Embodiment 1

Figure 1 is a schematic structural diagram of a washing machine outer barrel provided in this embodiment. As shown in Figure 1, the washing machine outer barrel provided in this embodiment includes: a barrel body 2 made of plastic and an annular reinforcement 1 made of metal. , the annular reinforcement 1 is integrated with the barrel 2 by injection molding, and the surface of the annular reinforcement 1 is in contact with the surface of the side wall of the barrel 2. That is to say, the annular reinforcement 1 is located on the side wall. inner or outer surface. The annular reinforcement 1 is used to support the barrel 2 and prevent the barrel 2 from deforming.

Before the outer barrel of this embodiment is injection molded, the annular reinforcement 1 can be fixed inside the mold first, and then the melted raw material is injected into the mold. After cooling and molding, the outer barrel is removed from the mold, and the annular reinforcement 1 is It is fixed on the side wall of the barrel 2 and forms an integral part with the barrel.

It should be pointed out that the annular reinforcement 1 and the barrel 2 are made into one piece by injection molding, which not only reduces the secondary assembly process, but also because after the annular reinforcement 1 and the barrel 2 are formed into one piece, the annular reinforcement 1 The relative position of 1 and the barrel 2 is fixed, and the annular reinforcement 1 will not be offset on the barrel 2 due to long-term use of the barrel 2. In addition, arranging the annular reinforcement member to fit the surface of the side wall of the barrel reduces the difficulty of injection molding and improves the efficiency of injection molding compared to completely embedding the annular reinforcement member into the side wall of the barrel body.

In this embodiment, the annular reinforcement 1 can be made of a variety of metal materials, for example, steel can be used. This embodiment does not limit the material of the annular reinforcement 1 .

Preferably, the annular reinforcement 1 is made of cast aluminum. The ring-shaped reinforcement 1 is made of cast aluminum. On the one hand, the rigidity of cast aluminum is greater than that of plastic. The ring-shaped reinforcement 1 made of cast aluminum meets the strength requirements of the barrel 2 made of plastic. On the other hand, the cast aluminum Compared with other metal materials such as steel, aluminum is easier to manufacture, and dimensional tolerances are easier to control.

As shown in FIG. 1 , the axial cross-section of the annular reinforcement 1 is circular. Of course, the present invention is not limited thereto, and the axial cross-section of the annular reinforcement 1 may also be elliptical. The reinforced circular or elliptical ring supports the barrel 2 and prevents the barrel 2 from deforming during long-term use.

In other embodiments of the present invention, the annular reinforcement 1 is a sheet structure matching the side wall of the barrel 2 , that is to say, the axial cross-section of the annular reinforcement 1 is rectangular. The sheet-shaped reinforcing ring is in close contact with the surface of the side wall of the barrel 2 and is tightly connected to the side wall of the barrel 2 . The sheet-shaped reinforcing ring is located close to the mouth of the barrel 2 . The sheet-shaped reinforcing ring can further support the barrel 2 in a wider range in the height direction, thereby further reducing possible deformation of the washing machine outer barrel during long-term use and increasing the service life of the barrel 2 .

In this embodiment, the annular reinforcement 1 is fixed on the side wall of the barrel 2 and is located close to the barrel mouth (for example, it can be 2-5cm away from the end face of the barrel 2), so that the annular reinforcement 1 is made of metal. 1. To increase the strength of the side wall of the plastic barrel 2 at the mouth of the plastic barrel to avoid its deformation, thereby avoiding interference between the outer barrel and the inner barrel and ensuring the safety of washing.

In some implementations, the number of annular reinforcements 1 may be multiple. For example, the number of ring-shaped reinforcements 1 is two, and the two ring-shaped reinforcements 1 are distributed up and down on the side wall of the barrel 2. The ring-shaped reinforcement 1 located below is 7cm away from the mouth of the barrel on the side wall of the barrel 2. location above. This embodiment does not limit the number of annular reinforcements 1 . By increasing the number of annular reinforcements 1, the supporting effect of the annular reinforcements 1 on the barrel 2 can be enhanced. Compared with the solution of only using one annular reinforcement 1 disposed close to the mouth of the barrel 2, the performance can be further improved. The outer barrel may deform during long-term use.

In some implementations, the surface of the annular reinforcement 1 is in contact with the inner surface of the side wall of the barrel 2 . The annular reinforcement 1 and the inner surface of the barrel 2 side wall can be connected in various ways. For example, the annular reinforcement 1 and the inner surface of the barrel 2 side wall can be connected by screws. It should be noted that when the annular reinforcement 1 is attached to the inner surface of the barrel 2, in order not to affect the rotation of the inner barrel of the washing machine, the thickness of the annular reinforcement 1 should not be too large to prevent the annular reinforcement 1 from protruding from the outer tub of the washing machine. Too much and interfere with the inner barrel.

Referring to Figure 1, in some specific examples, the inner surface of the annular reinforcement 1 is in contact with the outer surface of the side wall. The annular reinforcement 1 is arranged on the outside of the barrel 2 and fits the outer surface of the barrel side wall, which can not only support the position of the barrel mouth of the barrel 2, but also ensure the washing machine located inside the barrel. The inner barrel will not easily interfere with the outer barrel.

In summary, the metal ring-shaped reinforcement 1 according to the embodiment of the present invention plays a role in strengthening and supporting the barrel 2, especially at the mouth of the barrel. One or more ring-shaped reinforcements 1 are placed at the mouth of the barrel 2. position to prevent deformation at the mouth of barrel 2. In addition, by using cast aluminum as the material of the ring-shaped metal parts, the ring-shaped metal parts are easier to manufacture and the dimensional tolerances are easier to control.

As shown in Figure 1, the barrel 2 is a hollow cylindrical structure with a barrel mouth at the upper end, and is used to collect the washing water discharged from the inner barrel of the washing machine. Specifically, the bottom of the barrel 2 is circular, and its side walls are substantially perpendicular to the bottom and extend upward. In some possible implementations, there may be a certain angle between the side wall of the barrel 2 and the axis of the barrel 2 so that the area of the mouth of the barrel 2 is larger than the area of the bottom of the barrel, thereby having a larger washing capacity and facilitating dehydration. . The angle range between the side wall of the barrel 2 and the axis of the barrel 2 may be 3-5°. It should be pointed out that in this embodiment, the upper end of the barrel 2, that is, the end facing the user, has a barrel mouth, and the lower end of the barrel 2, that is, the end away from the user, is blocked.

This is to prevent wash water from flowing from the outer tub to the motor below it.

FIG. 2 is a top view of FIG. 1 . For example, as shown in Figure 2, a drainage hole 24 is provided at the bottom of the barrel 2. The drainage hole 24 is provided close to the side wall of the barrel 2. A water collecting groove 25 is provided around the drainage hole 24. The bottom of the barrel 2 is in contact with the side wall of the barrel 2. The side wall connection is provided with a water conduit 26 connected with the water collecting tank 25. That is to say, the water conduit 26 is arranged around the axis of the outer tub. After the washing water enters the outer tub, it is discharged from the drainage hole 24. When the washing water in the barrel 2 is relatively small, the washing water in the barrel 2 is collected into the water collecting tank 25 through the guide groove 26 , and then is discharged from the drainage hole 24 .

Continuing to refer to Figure 2, the bottom of the barrel 2 can also be provided with a drainage valve installation port 27 and a locking component installation port 28. The drainage valve mounting port 27 is used to install the drainage valve component, and the locking component installation port 28 is used to install the lock. part. It is easy to understand that the bottom of the inner barrel of the washing machine is provided with a drain outlet and a locking hole. The valve plug can move up and down in the drain valve installation port 27. When the valve plug moves upward, the drain outlet at the bottom of the inner barrel is blocked. When the valve plug moves downward, the drain outlet at the bottom of the inner barrel is opened to drain water. The locking component can move up and down in the locking component installation opening 28. When the locking component moves upward, the upper end of the locking component extends into the locking hole at the bottom of the inner barrel, thereby locking the inner barrel of the washing machine and the barrel body 2. Prevent the inner barrel of the washing machine from rotating relative to the barrel body 2.

The following briefly introduces the drainage process of the washing machine so that those skilled in the art can better understand the solution of this embodiment:

When the washing machine needs to be drained, the locking component moves upward to prevent the inner barrel from rotating relative to the barrel body 2, and the valve plug moves downward to open the drain port of the inner barrel. The washing water in the inner tub flows into the inside of the tub 2 from the drain port, and then is discharged from the drain hole 24 at the bottom of the tub 2 to the outside of the washing machine.

Figure 3 is a schematic structural diagram of another washing machine outer tub provided in this embodiment. As shown in Figure 3, the outer surface of the barrel 2 is also provided with at least two first connecting ribs 21. The first connecting ribs 21 extend in an axial direction parallel to the outer barrel (ie, in the up and down direction as shown in Figure 3). And wrap a part of the annular reinforcement 1. When the number of the first connecting ribs 21 is two, the two first connecting ribs 21 are respectively located on opposite sides of the outer surface of the outer barrel. When the number of the first connecting ribs 21 is When there are more than two, the first connecting ribs 21 can be evenly arranged around the circumference of the barrel 2 , that is to say, the distance between two adjacent first connecting ribs 21 on the annular reinforcement 1 is equal. This embodiment does not limit the arrangement of the plurality of first connecting ribs 21 on the outer surface of the outer barrel, as long as the plurality of first connecting ribs 21 can be fixed on the outer surface of the barrel 2 by the annular reinforcement 1 . The annular reinforcement 1 is fixed on the outer surface of the barrel 2 near the mouth of the barrel through a plurality of first connecting ribs 21, which can ensure that the connection between the annular reinforcement 1 and the barrel 2 is tighter.

In some implementations, the cross section of the first connecting rib 21 along the axial direction of the outer tub may be in various shapes. For example, as shown in FIG. 3 , the cross section of the first connecting rib 21 along the axial direction of the outer barrel is a triangle, one side of the triangle is connected to the outer surface of the barrel 2 , and the annular reinforcement 1 passes through the inside of the triangle. In this embodiment, there is no restriction on the cross-sectional shape of the first connecting rib 21 along the axial direction of the outer barrel, as long as the first connecting rib 21 can wrap a part of the annular reinforcement 1 and reliably fix the annular reinforcement 1 to the barrel body. 2On the outer surface.

The barrel body 2, the annular reinforcement 1 and the first connecting rib 21 can be formed into an integrated piece by injection molding. The barrel body 2, the annular reinforcement 1, and the first connecting rib 21 are made into one piece by injection molding, which not only avoids secondary processing, but also ensures a more stable connection between the annular reinforcement 1 and the barrel 2.

Figure 4 is a schematic diagram of the outer barrel in Figure 3 from different viewing angles. As shown in Figure 4, the bottom of the outer barrel is provided with at least one boom seat 22 for fixing the boom. For example, the boom seat 22 is provided with a through hole (not shown in the figure), and the axial direction of the through hole is Parallel to the axial direction of the outer barrel, one end of the boom passes through the through hole and is fixed with the through hole. The other end of the boom is detachably installed on the box, so that the outer bucket is hung inside the box through the boom. . The boom seat 22 is provided with at least one second connecting rib 221 (see FIG. 4 ) toward the barrel mouth at the top of the outer tub, and the second connecting rib 221 extends upward.

It should be noted that the number of the second connecting ribs 221 may be one or more. When the number of the second connecting ribs 221 provided on the boom seat 22 toward the mouth of the outer tub is one, the second connecting rib 221 is usually located at the middle position above the boom seat 22 . When the number of the second connecting ribs 221 provided on the boom seat 22 toward the barrel mouth of the outer tub is multiple, the plurality of second connecting ribs 221 are arranged in parallel above the boom seat 22 .

In this embodiment, the second connecting rib 221 extending upward is provided on the boom base 22 and the second connecting rib 221 wraps a part of the annular reinforcement 1, thereby improving the connection strength between the annular reinforcement 1 and the barrel body 2.

Continuing to refer to Figure 4, in some examples, the outer surface of the barrel 2 is also provided with at least two first connecting ribs 21. The first connecting ribs 21 extend in the axial direction parallel to the outer barrel and wrap the annular reinforcement 1 At the same time, the boom seat 22 located at the bottom of the outer tub is provided with at least one second connecting rib 221 toward the barrel mouth of the outer tub. The second connecting rib 221 wraps a part of the annular reinforcement 1 . Through the first connecting rib 21 and the second connecting rib 221 working together, the annular reinforcement 1 is firmly fixed on the outer surface of the barrel 2 . Compared with simply using the first connecting rib 21 or the second connecting rib 221 to fix the annular reinforcement 1 The reinforcement 1 is fixed on the outer surface of the barrel 2, and the connection strength is higher.

In some implementations, one or more first connecting ribs 21 may be provided between the second connecting ribs 221 provided on the tops of two adjacent boom seats 22 . When the number of the first connecting ribs 21 between the second connecting ribs 221 on the tops of two adjacent boom seats 22 is one, the first connecting rib 21 can be located at the middle position between the two boom seats 22. Extend downward to the bottom of barrel 2. When the number of the first connecting ribs 21 between the second connecting ribs 221 on the top of two adjacent boom seats 22 is multiple, for example, the first connecting ribs 21 between the two adjacent boom seats 22 are shown in FIG. 4 The number 21 is three. At this time, the first connecting rib 21 located in the middle can extend downward to the bottom of the barrel 2 . Two adjacent boom seats 22 can also be connected through a third connecting rib 222, so that a network of reinforcing ribs can be formed on the outside of the barrel 2 through the first to third connecting ribs 21 to 222, thereby improving the The overall structural strength of the outer barrel.

In some possible implementations, the barrel body 2, the annular reinforcement 1, the first connecting rib 21, the boom seat 22 and the second connecting rib 221 are formed into one piece by injection molding, which further improves the structural strength of the outer barrel.

Continuing to refer to Figure 4, a cavity 29 is provided near the bottom of the barrel 2. The cavity 29 is formed into a vertical cylindrical shape, that is, a vertically arranged cylindrical shape. The side surfaces of the vertical cylindrical cavity 29 are in contact with the side surfaces of the barrel 2. Tighten the connection. Preferably, a cavity 29 is formed on the side of the barrel 2 by injection molding, so that the water level can be sensed through the cavity 29 .

The bottom end of the cavity 29 is open to form an open end, and the top end of the cavity 29 is closed. It should be noted that the bottom end of the cavity 29 is made open so that the cavity 29 can be injection molded. During use, a cover can be used to seal the open end of the bottom of the cavity 29 . A tracheal inlet 291 is inserted into the top of the cavity 29. The tracheal inlet 291 is connected to one end of the trachea, and the other end of the trachea is connected to a pressure sensor, so that the water level in the outer barrel is sensed through the pressure sensor.

A communication port is provided on the side of the side where the cavity 29 and the barrel 2 are connected, and the cavity 29 and the barrel 2 are connected through the communication port. When the washing water flows into the barrel 2, part of the washing water enters the cavity 29 from the communication port, and the gas in the cavity 29 is compressed upward, so that the pressure sensor can sense such a pressure change and pass through it. Convert to water level height.

It should be noted that the “cylindrical shape” here is understood in a broad sense, that is, the cross-section of the cylindrical shape is not limited to circular, and the dimensions of each cross-section of the cylindrical shape may be equal or unequal. In addition, "vertical arrangement" means that the axis of the cylindrical shape extends generally in the up-and-down direction shown in FIG. 4 .

As shown in FIG. 4 , at least one cable fixing frame 23 integrally formed with the barrel 2 is provided under the side surface of the barrel 2 . The cable fixing frame 23 is provided with a cable groove 231 for fixing cables. For example, the cable fixing bracket 23 and the cable groove 231 are integrally formed by injection molding. In some implementations, through holes are respectively provided on the left and right sides of the cable duct 231 .

When assembling the washing machine, when it is necessary to fix the cables of the electrical components at the bottom of the barrel 2, the cables of the electrical components can be bundled first, and then the bundled cables are placed in the cable trough 231, and then A rope is passed through the through holes on both sides of the cable groove 231. One end of the rope passes through the through hole on one side, and the other end of the rope passes through the through hole on the other side, so that the rope located in the two through holes can pass through. The cable is fixed in the cable trough 231, that is to say, when the rope passing through the two through holes is tightened, the fixing of the cable in the cable trough 231 is completed. By arranging the cable fixing bracket 23 at the bottom of the barrel 2, the electrical component cables located at the bottom of the barrel 2 are fixed on the bottom of the barrel 2, which facilitates the arrangement of the cables in the washing machine.

In summary, the outer barrel provided by the present invention has an annular reinforcement 1 at the barrel mouth to support the barrel 2, so that the barrel mouth of the barrel 2 is not easily deformed after long-term use, thereby extending the length of the outer barrel of the washing machine. usage of.

Embodiment 2

A coil that uses alternating current for electromagnetic excitation can also be installed on the barrel, so that the inner barrel made of stainless steel arranged in the outer barrel is heated by the coil, and then the washing water in the inner barrel is heated. In this way, since heated wash water can be used for washing, on the one hand, the diffusion rate of detergent in hot wash water is higher, and the washing effect is higher than that of cold water; on the other hand, the wash water is heated to a certain temperature for a certain period of time. Can play a sterilizing role.

Figure 5 is a schematic structural diagram of the outer barrel of the washing machine provided in this embodiment. Figure 6 is an exploded view of Figure 5 . Figure 7 is a cross-sectional view of the heating device provided in this embodiment along the vertical direction. Figure 8 is a partial enlargement of Figure 7 Schematic diagram. As shown in FIGS. 5-8 , the heating device 3 includes a coil 33 , a housing 32 and a terminal 31 . Among them, the coil 33 is arranged in the housing 32, and the input end and the output end of the coil 33 are respectively provided with terminals 31. The terminals 31 are electrically connected to the AC power supply, so that the coil 33 can be provided with high-frequency AC power through the AC power supply. In order to generate an alternating magnetic field near the coil 33. Since the magnetic field generated near the coil 33 changes, that is, the magnetic field lines near the coil 33 change with time, the inner barrel will cut these magnetic field lines and then generate heat, and the heat will then be transferred to the washing water in the inner barrel. , thus realizing the heating of the wash water.

For example, the housing 32 may be made of hard plastic to facilitate processing. In specific design, the housing 32 can be designed as a closed ring shape or a semi-ring shape, etc. For example, the diameter of the housing 32 can be substantially consistent with the diameter of the barrel mouth at the top of the barrel 2 , so that the top of the barrel 2 can directly support the heating device 3 . It is easy to understand that when the casing 32 is designed as a closed annular shape, the coil disposed in the casing 32 can surround the inner barrel, and when the coil 32 is excited by high-frequency alternating current, the entire radial cross-section of the inner barrel can be be heated, thus improving its heating efficiency.

The housing 32 and the barrel 2 can be connected in various ways. For example, the housing 32 and the barrel 2 are connected by screws. Specifically, as shown in Figures 6-7, a plurality of outwardly protruding screw seats 34 are provided at the bottom of the housing 32. Each screw seat 34 is provided with a plurality of through holes for inserting screws. The axis of the through holes is in line with the barrel. Body 2 axes are parallel. Correspondingly, a plurality of screw holes matching the through holes are provided on the top of the barrel mouth of the barrel 2, and screws are screwed through the through holes of the screw seats 34 into the screw holes on the top of the barrel 2 to fix the shell 32 to the barrel. 2. Above the barrel mouth. By arranging the shell 32 on the top of the barrel mouth of the barrel 2, the strength of the barrel mouth of the barrel 2 is further improved and the barrel mouth position of the barrel 2 is prevented from being deformed during long-term use.

As shown in Figures 7-8, the coil 33 can be wound at least once inside the cavity of the housing 32. It is worth mentioning that the more turns the coil 33 is wound in the housing 32, the faster the heating rate will be. Helps improve washing efficiency. In this embodiment, the number of winding turns of the coil 33 in the housing 32 is not specifically limited, and those skilled in the art can determine it according to actual needs. The coil 33 is made of a metal material with good electrical conductivity. For example, copper is selected as the material of the coil 33 .

The coil 33 can be fixed in the internal cavity of the housing 32 in various ways. For example, if hard plastic is selected as the material of the shell 32, before the shell 32 is injection molded, the bent coil 33 is first fixed inside the mold, and then the molten raw material is injected into the mold. After cooling and molding, Then the shell 32 is removed from the mold, and the coil 33 is fixed in the cavity inside the shell 32 .

In some implementations, in order to prevent the heating device 3 from short circuit or leakage, insulating glue is provided outside the coil 33 . The insulating glue can effectively prevent the coil 33 from short circuit or leakage.

As shown in FIG. 8 , a terminal 31 for electrically connecting the coil to an AC power source is provided outside the housing 32 . For example, the terminal 31 is a box-shaped structure, and the front and rear ends of the coil 33 extend from the cavity of the housing 32 into the terminal 31 and extend from the bottom of the terminal 31 to connect to the AC power supply. It should be understood that the terminal 31 and the outer wall of the housing 32 can be connected in various ways. For example, the terminal 31 and the housing 32 are connected by screws. By arranging the terminals 31 on the outside of the casing 32, it is prevented that the front and rear ends of the coil 33 extend from the casing 32 and are directly exposed to the outside. Water splashed from the outer barrel falls on the front and rear ends of the coil 33, causing a short circuit in the coil 33, and also causes the coil 33 to be short-circuited. Facilitates the electrical connection between the heating device and the AC power supply.

The working principle of the washing machine equipped with the above-mentioned heating device 3 is introduced below, so that those in the art can better understand the technical solution of the present invention.

When washing is required, the main control of the washing machine controls the water inlet valve to inject water into the inner tub. After that or at the same time, the main control controls electronic components such as transistors to provide high-frequency alternating current to the coil 33 of the heating device 3 so that An alternating magnetic field is generated around the coil 33. Under the action of the magnetic field, the metal molecules in the metal inner barrel located inside the outer barrel move irregularly at high speed. The molecules collide and rub against each other to generate heat. The heat is transferred from the inner barrel to the wash water through waves. The rotation of the wheel promotes the diffusion of heat in the wash water, causing all the wash water in the inner barrel to heat up, thereby heating the inner barrel and thereby heating the wash water.

In summary, a heating device 3 that uses electromagnetic heating is provided in the outer tub to heat the washing water in the inner tub, so that the detergent diffuses faster in the washing water, improves the washing effect, and can also play a sterilizing role. In addition, when the heating device 3 is disposed on the top of the mouth of the barrel 2, the strength of the mouth of the barrel 2 can also be enhanced, and the mouth of the barrel 2 will not be easily deformed during long-term use.

Furthermore, since the water temperature is lower than 56°C, it cannot sterilize, and when the water temperature exceeds 90°C, the clothes will be damaged, so the heating device 3 needs to be controlled to heat the water in the inner bucket to between 56°C and 90°C. . In view of this, a temperature sensing element can also be provided to sense the temperature of the washing water. When the inner barrel is a non-perforated inner barrel, the temperature sensing element can be arranged on the pulsator; when the inner barrel is a perforated inner barrel, the temperature sensing element can be arranged on the outer barrel.

The following describes a solution for arranging a temperature sensing element on the drain valve component to detect the temperature of the wash water in conjunction with Figures 5, 6, 9 and 10. Figure 9 shows a schematic structural diagram of the drain valve component, and Figure 10 is Figure 9 is a cross-sectional view along the A-A direction.

As shown in Figures 5 and 6, a drain valve installation port 27 is provided at the bottom of the barrel 2 of the outer tub. The drain valve component 4 is installed in the drain valve installation port 27, and a part of the drain valve component 4 extends to the barrel 2 below.

Referring to FIG. 10 , the drain valve component 4 includes a valve plug 41 , and the drain valve component 4 can control the valve plug 41 to reciprocate in the drain valve installation port 27 . When the valve plug 41 moves upward in the drain valve installation port 27, the valve plug 41 blocks the drain port of the inner bucket. When the valve plug 41 moves downward in the drain valve installation port 27, the inner bucket drain port opens and the inner bucket moves outward. Drainage.

The valve plug 41 has a hollow cylindrical structure, and the top of the valve plug 41 is tightly connected to a temperature sensing member 42, which is used to detect the water temperature in the inner barrel when the valve plug 41 blocks the drain outlet of the inner barrel. The temperature sensing member 42 and the valve plug 41 can be connected in various ways. For example, as shown in FIG. 10 , the temperature sensing member 42 is embedded in the top of the valve plug 41 . In this embodiment, there are no specific restrictions on the connection method between the valve plug 41 and the temperature sensing member 42. Persons in the art can select a suitable connection method according to actual needs, as long as it is ensured that the washing water will not pass through the temperature sensing member 42 and the valve plug 41. The connection point can enter the inside of the valve plug 41. Of course, the type of the temperature sensing element 42 is also non-limiting. For example, a thermocouple can be used as the temperature sensing element 42 . Using a thermocouple as the temperature sensing element 42 has high measurement accuracy, wide measurement range and simple structure. Those skilled in the art can choose an existing thermocouple on the market as the temperature sensing element 42 .

Continuing to refer to Figure 10, the bottom of the temperature sensing element 42 is connected to one end of the wire 43, and the other end of the wire 43 extends from the bottom of the valve plug 41 to connect to the controller, for example, connected to the control panel of the washing machine. The temperature sensing element 42, wire 43 and the control panel are electrically connected. connect. Of course, the drain valve component 4 also includes other components, such as a drain valve driver that drives the valve plug 41 to reciprocate, a transmission mechanism that connects the valve plug 41 and the drain valve driver, etc. Those skilled in the art can choose other components available on the market to form the drain valve component 4 together with the valve plug 41 .

The working process of the drain valve component 4 provided with the temperature sensing component 42 is introduced below so that those skilled in the art can better understand the solution of this embodiment.

When washing is required, the valve plug 41 moves upward in the drain valve installation port 27 driven by the drain valve component 4, blocking the inner bucket drain port located inside the outer bucket, and the inner bucket is filled with water. After the water inflow is completed, it passes through the top of the outer bucket. The heating device 3 heats water. The temperature sensing element 42 located at the top of the valve plug 41 measures the temperature of the washing water. When the water temperature reaches a first preset value such as 90°, the temperature sensing element 42 transmits a signal to the control panel, and the control panel controls Stop providing AC power to the heating device 3 and heating stops. When the water temperature cools to a second preset value, such as 56°, the temperature sensor 42 transmits a signal to the control panel again, and the control panel controls to provide AC power to the heating device 3, and the heating device 3 starts to heat the wash water.

By arranging the temperature sensor 42 for measuring the water temperature on the top of the valve plug 41, the water can be controlled within a certain temperature range to prevent the water temperature from being too low and losing the sterilization effect and the water temperature being too high from damaging the clothes.

In summary, the outer tub of the washing machine provided in this embodiment is provided with a heating device 3 in the outer tub, which has the function of heating the inner tub and thereby heating the wash water, which not only improves the washing effect, but also plays a sterilizing role. In addition, the heating device 3 is fixed at the mouth of the outer barrel, which also improves the strength of the mouth of the outer barrel, so that the mouth of the outer barrel is not easily deformed during long-term use. At the same time, a temperature sensing member 42 is provided on the top of the valve plug 41 for measuring the temperature of the washing water to prevent the temperature of the washing water from being too low or too high during the heating process of the heating device 3 .

Embodiment 3

Based on the above embodiments, this embodiment also provides a washing machine, which includes a box, an outer tub of the washing machine in Embodiment 1 arranged in the box, and an inner tub rotatably arranged in the outer tub. The washing machine can be used to clean clothes in daily life.

The washing machine provided in this embodiment uses the above-mentioned washing machine outer barrel. The washing machine outer barrel includes a barrel body 2 and an annular reinforcement member 1. The annular reinforcement member 1 is disposed close to the barrel mouth of the barrel body 2. The surface of the annular reinforcement member 1 is in contact with the barrel. The surface of the side wall of the body 2 fits and is tightly connected with the side wall of the barrel 2 . The annular reinforcement 1 supports the mouth of the barrel 2 to increase the strength of the mouth of the barrel 2. At the same time, a heating device 3 is provided at the top of the outer barrel, which can heat the inner barrel located inside the outer barrel to heat the washing water, thereby sterilizing and improving the washing effect.

Of course, the washing machine provided in this embodiment also includes a washing machine using a "non-porous inner barrel". This kind of washing machine simply uses the inner barrel as a water container, and the outer barrel only wraps the bottom of the non-porous inner barrel and a part near the bottom. The outer barrel is used for Collect the water drained from the inner barrel.

During long-term use of the outer barrel of the washing machine, the mouth of the barrel is not easily deformed. The outer barrel of the washing machine has a long service life. The washing machine does not need to replace the outer barrel frequently, and the use cost is low. The heating device 3 provided in the outer barrel has the function of heating the washing water, improving the washing effect, and can also play a sterilizing effect.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings. However, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and technical solutions after these modifications or substitutions will fall within the protection scope of the present invention.

Claims (8)

1. An outer barrel of a washing machine, characterized in that it includes: a barrel made of plastic, a heating device installed on the barrel, and an annular reinforcement made of metal; The barrel is used to hold wash water; The surface of the annular reinforcement is in contact with the surface of the side wall of the barrel, and is formed into an integral piece with the barrel through injection molding; The annular reinforcement is disposed close to the mouth of the barrel; The heating device includes a coil, a shell and a terminal. The coil is used to generate an alternating magnetic field under alternating current excitation to heat an inner barrel made of metal that is arranged in the barrel; The bottom of the housing is provided with a plurality of outwardly protruding screw seats, each screw seat is provided with a plurality of through holes for inserting screws, and the axis of the through holes is parallel to the axis of the barrel; A plurality of screw holes matching the through holes are provided on the top of the barrel mouth, and the screws are screwed through the through holes of the screw seats into the screw holes on the top of the barrel to secure the screws. The shell is fixed above the barrel mouth of the barrel. 2. The outer barrel of the washing machine according to claim 1, wherein the inner surface of the annular reinforcement is in contact with the outer surface of the side wall, and the outer surface of the barrel is further provided with at least two third A connecting rib, the first connecting rib extends in an axial direction parallel to the outer barrel and wraps a part of the annular reinforcement; The barrel body, the annular reinforcement and the first connecting rib are formed into one piece by injection molding. 3. The outer tub of the washing machine according to claim 2, wherein the bottom of the outer tub is provided with at least one boom seat for fixing a boom, and the boom seat faces the direction of the mouth of the outer tub. At least one second connecting rib is provided, and the second connecting rib wraps a part of the annular reinforcement; The barrel body, the annular reinforcement, the first connecting rib, the boom seat and the second connecting rib are formed into one piece by injection molding; and/or, The annular reinforcement has an axial cross-section in a circular, oval or rectangular shape, and the annular reinforcement is a cast aluminum reinforcing ring made of cast aluminum. 4. The washing machine outer tub according to claim 1, characterized in that, The terminal is located outside the housing and is tightly connected to the housing for electrical connection with the AC power supply; The coil is arranged in the housing, and the input end and the output end of the coil extend from the housing and are electrically connected to the terminal. 5. The outer tub of the washing machine according to claim 1, wherein a drainage valve installation port is provided at the bottom of the outer tub, a drainage valve component is installed in the drainage valve installation port, and the drainage valve component includes a valve plug, The drain valve component controls the reciprocating movement of the valve plug to open or close the drain port of the inner barrel. 6. The outer tub of the washing machine according to claim 5, characterized in that the middle part of the valve plug is set to be hollow, and a temperature sensing member is installed on the top of the valve plug, and the temperature sensing member is passed through the valve plug. The wires inside are electrically connected to a controller, and the controller is used to control the working state of the heating device according to the temperature signal sensed by the temperature sensing element. 7. The washing machine outer barrel according to any one of claims 1 to 3, characterized in that the bottom of the barrel is provided with at least one cable fixing frame integrally formed with the barrel for fixing the cable in the washing machine. Cables inside the box; and/or, A cable groove is provided in the middle of the cable fixing frame for fixing cables. 8. A washing machine, characterized in that it includes a box, an outer tub of the washing machine according to any one of claims 1 to 7 arranged in the box, and an inner tub rotatably arranged in the outer tub.