Barrel and drum-type clothes washing and drying machine

Abstract

The invention relates to a barrel which is used for a drum-type clothes washing and drying machine and comprises a barrel body, the first side of the barrel body is provided with an opening, the second side opposite to the first side is provided with a bottom wall, a supporting part is connected with the bottom wall from the outer side of the bottom wall, and an air channel is formed after the supporting part is connected with the bottom wall. The support portion includes a reinforcement portion extending laterally outward around the second wall. A drum type clothes washing and drying machine comprises a drum, and a driving shaft penetrates through a supporting part and a bottom wall and is connected with a drum located in the drum. According to the barrel and the drum-type clothes washing and drying machine comprising the barrel, manufacturing and assembling can be simpler and more convenient, attachment of batting and dirt to the inner side of the bottom wall of the barrel is reduced, and the strength and rigidity of the barrel comprising the air channel are improved.

Description

[Technical field]

[0001] The invention relates to a drum type washing and drying machine and a barrel used for the drum type washing and drying machine, and also relates to the technical field of air heat exchange of the washing and drying machine. [Background technology]

[0002] A drum-type washing and drying machine generally comprises a transversely arranged barrel in which the clothes are washed and / or dried. An air passage is connected to at least one end of the barrel so that processed air is input into and / or discharged from the barrel during the drying process to dehumidify the clothes in the barrel.

[0003] The invention patent application publication document with publication number CN108118505A discloses a cylinder of a clothes drying appliance, comprising: a rear cylinder section including an air output opening, at least one cover attached to the rear cylinder section and an air duct, wherein the air duct is connected to the air output opening and is bounded by the rear cylinder section and at least one cover.

[0004] The public document Figure 1 , Figure 3 In the technical solution shown in FIG. 5 , the connection between the cover and the rear cylinder section destroys the flatness of the inner surface of the rear cylinder section, making it easy for lint generated during the drying process to accumulate in the connection area, as well as various dirt accumulated during the washing process. Figure 4 In the technical solution shown, the end wall of the rear cylinder section where the air duct is located is not reinforced by the reinforcing ribs and is relatively weak. The cover can play a certain reinforcing role, but the structure and manufacturing process of the cover are complicated, and the connection area between the cover and the seat is small, which weakens the reinforcing effect of the cover. [Summary of the invention]

[0005] The object of the present invention is to improve a tub for a drum-type washing and drying machine and a drum-type washing and drying machine comprising the tub, so as to improve at least one of the defects existing in the prior art, such as those mentioned above.

[0006] An embodiment of the present invention discloses a barrel for a drum-type washing and drying machine, comprising a barrel body, a first side of the barrel body having an opening, a second side opposite to the first side having a bottom wall, a support portion connected to the bottom wall from the outside of the bottom wall, a side of the bottom wall facing the support portion having a first wall, a side of the support portion facing the bottom wall having a second wall opposite to the first wall, an air passage is formed between the first wall and the second wall after the support portion is connected to the bottom wall, one of the inlet and the outlet of the air passage is located on the bottom wall, the other of the inlet and the outlet of the air passage is at least partially located on the support portion, the support portion comprises a reinforcing portion extending laterally outward around the second wall, and a plurality of first reinforcing ribs are provided on the reinforcing portion.

[0007] The support portion and the bottom wall may be connected by one or more of welding, gluing, screw fixing and the like.

[0008] Further embodiments also include that the side of the bottom wall away from the supporting portion is overall flat, and / or the first wall and the rest of the bottom wall are on the same extension plane, the supporting portion includes a first surface facing the bottom wall and a second surface away from the bottom wall, and the second wall is recessed relative to the first surface in a direction away from the first wall.

[0009] An optional embodiment also includes that a side of the bottom wall facing the support portion and avoiding the first wall has a plurality of second reinforcing ribs, and the support portion and the bottom wall are welded at the second reinforcing ribs.

[0010] A specific embodiment also includes that at least a portion of the first reinforcing ribs corresponds to a position of at least a portion of the second reinforcing ribs.

[0011] Preferably, at least part of the first reinforcing ribs penetrate front and back and are welded to the second reinforcing ribs.

[0012] As one embodiment, a plurality of the first reinforcing ribs are provided on a side of the second wall facing away from the bottom wall.

[0013] Optionally, the first reinforcing ribs are evenly distributed circumferentially on a side of the support portion facing away from the bottom wall.

[0014] Optionally, the barrel body is made of a first material, and the support portion is made of a second material, the first material has a higher recycling rate than the second material, and / or the second material has a higher strength than the first material.

[0015] The first material includes polypropylene containing talc, and / or the second material includes polypropylene containing glass fiber.

[0016] As one embodiment, a bearing is provided on the support portion near the center area, a second hole is provided on the bottom wall, a drive shaft is supported by the bearing and passes through the second hole to drive the drum in the barrel, and the bearing is reinforced around by a plurality of the first reinforcing ribs.

[0017] The air passage avoids the bearing and presents a substantially “C”-shaped extension path.

[0018] The supporting portion covers most of the outer area of ​​the bottom wall.

[0019] The support portion includes an outlet connection portion connected to an external air passage, wherein the outlet connection portion has a cross section enlarged than a flow cross section of the air passage.

[0020] The barrel body comprises a front barrel and a rear barrel, the opening is located on the front barrel, the bottom wall is located on the rear barrel, and the front barrel and the rear barrel are made of the same recyclable material.

[0021] If technical conditions permit, the above embodiments may be combined in any manner.

[0022] Another aspect of the present invention provides a drum washing and drying machine, comprising a barrel of any of the above embodiments, an external air passage is connected to the air passage, a blowing device is provided in the external air passage to promote air circulation, and a driving shaft passes through the support portion and the bottom wall and is connected to the drum located in the barrel.

[0023] The heat exchange device is connected to the air channel, and a cooling medium is introduced to exchange heat with the air passing through the air channel.

[0024] The barrel of the present invention and the drum-type washing and drying machine including the barrel are not only easier to manufacture and assemble, and reduce the adhesion of lint and dirt on the inner side of the bottom wall of the barrel, but also improve the strength and rigidity of the barrel including the air channel. In addition, it is allowed that only the support part is made of a material with higher rigidity and strength, while the rigidity and strength requirements for the barrel body can be lower, so that there is more room for material selection for the barrel body. For example, the barrel body can be made of a material with lower cost and / or a material with higher recyclability, which is more conducive to environmental protection and sustainable development.

[0025] Some specific embodiments of the present invention will be described below with reference to the accompanying drawings. Other advantages of the present invention will also be described below with reference to various specific embodiments.

Brief Description of the Drawings

[0026] Figure 1 An exploded view of some components of a drum-type washer-dryer, including a tub;

[0027] Figure 2 is a cross-sectional view of the assembled barrel;

[0028] Figure 3 is a rear view of the bottom wall of the barrel;

[0029] Figure 4 It is a rear view of the support part. [Specific embodiment]

[0030] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention clearer, the present invention will be further described in detail in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the scope of protection of the present invention, and each embodiment may share the same view or multiple views for description, but all features appearing in the same figure cannot be interpreted as features that must be possessed by an embodiment. On the contrary, as long as they are not mutually exclusive technically, they can be combined in any suitable manner. Moreover, for the sake of simplicity, different embodiments of different aspects may be presented in the same specific design, but such presentation does not mean that the embodiments of these aspects should appear together. The disassembly and / or combination of all possible embodiments and / or technical features should also take into account the description of the specification and the content that can be directly and unambiguously determined by those skilled in the art based on the description of the specification.

[0031] Before we begin the description, we also need to point out that, for the sake of convenience, this document may use directional terms or direction terms for description. Such directional terms or direction terms are relative to the normal use state of the drum-type washing and drying machine. Those skilled in the art can clearly understand this from the description of the present invention without causing any confusion. In this case, such directional terms and direction terms should not be simply interpreted as the directional or direction in any state. Specifically, the directional terms such as "front" and "rear" in this specification can be combined with Figure 1 and Figure 2 It should be understood that "inside" can be relative to the internal space surrounded by the barrel, while "outside" corresponds to the "inside", that is, the space or direction outside the internal space defined by the barrel.

[0032] Moreover, the ordinal numbers such as "first" and "second" in this specification are provided to avoid confusion among constituent elements, rather than to limit the quantity, nor do they mean that there is any difference in importance between them.

[0033] It must also be pointed out that due to the proportional relationship, the limitation of the space of the figure markings, etc., in the following description, it may be necessary to refer to multiple figures at the same time for understanding.

[0034] The drum type washing and drying machine involved in the present invention can wash and / or dry clothes, so the drum is usually connected to an air passage, or includes an air passage. During the drying process, the air carrying moisture is heat exchanged in the air passage. The drum of the drum type washing and drying machine is generally arranged horizontally in the axial direction, or tilted at a certain angle, but still maintains a door opening basically from the front side.

[0035] Combination Figure 1 and Figure 2The structure of an embodiment of a drum-type washing and drying machine 100 can be understood. As shown in the figure, the drum-type washing and drying machine 100 includes a barrel 1, which is usually made of plastic, and a drum 2 is rotatably located in the barrel 1 by the force transmitted by the driving shaft 3. The clothes are washed and / or dried in the drum 2. An air channel 10 is formed on the barrel 1. One end of the air channel 10 is connected to the space inside the barrel 1, and the other end is connected to the external air channel 20. A blower 21 is provided in the external air channel 20. After the blower 21 is started, the air can be driven from the barrel 1 through the air channel 10 to enter the external air channel 20, and re-enter the barrel 1 after being heated in the external air channel 20; or it can be directly discharged from the machine from the external air channel 20. It is also possible that after the blower 21 is started, the air is driven from the external air channel 20 through the air channel 10 to enter the barrel 1. Generally, the direction of the air flow driven by the blower 21 remains unchanged, and is set in advance according to actual design needs. In practice, it is more common that the air in the barrel 1 is activated to enter the air channel 10, then enter the external air channel 20, and then return to the barrel 1 after being heated.

[0036] The barrel 1 comprises a barrel body 11 constituting the main containing part of the barrel 1. For the convenience of manufacturing, the barrel body 11 is formed by a front barrel 111 and a rear barrel 112 being sealed and connected front and back. The barrel body 11 is basically a cylindrical shape, with an opening 12 on a first side and a bottom wall 13 on a second side opposite to the first side (due to the angle problem, Figure 1 The front tub 111 and the rear tub 112 are not visible on the top, but their positions can be seen in combination with the reference numerals). Clothes can be put in or taken out through the opening 12. Specifically, the opening 12 is located on the front tub 111, and the bottom wall 13 is located on the rear tub 112. For cost saving, sustainable development and other considerations, the front tub 111 and the rear tub 112 can be made of the same first material, especially recyclable materials, and can also be appropriately selected considering the price of the material. For example, the front tub 111 and the rear tub 112 can be made of polypropylene containing talc.

[0037] The support portion 30 is fixedly connected to the bottom wall 13 from the outside of the bottom wall 13, which can strengthen the bottom wall 13 and enhance the rigidity and strength of the entire barrel 1, thereby preventing the barrel 1 from being deformed or damaged under high-intensity working conditions. At the same time, an air passage 10 is formed between the support portion 30 and the bottom wall 13, so that the air passage 10 is formed in a very compact manner, saving the internal space of the machine.

[0038] The following focuses on the support portion 30 and the bottom wall 13 , as well as the structure of forming the air passage 10 .

[0039] according to Figure 3It can be seen that the outer side or rear side of the bottom wall 13 has a first wall 131. Since the support portion 30 is installed on the bottom wall 13 from the rear side, it can also be considered that the side of the bottom wall 13 facing the support portion 30 has the first wall 131. And the side of the support portion 30 facing the bottom wall 13 has a second wall 31 opposite to the first wall 131. Except for the necessary structures, the surfaces of the first wall 131 and the second wall 31 are basically smooth to avoid the accumulation of lint. Moreover, the shapes of the first wall 131 and the second wall 31 are basically adapted to each other. Therefore, after the support portion 30 is connected to the bottom wall 13, an air passage 10 is formed between the first wall 131 and the second wall 31. According to Figure 3 In particular, it can be seen that the bottom wall 13 has a first hole 132 connected to the first wall 131. The first hole 132 can thus serve as the inlet 101 or outlet 102 of the air channel 10. The other of the inlet 101 and the outlet 102 of the air channel 10 is at least partially located on the support portion 30.

[0040] Depend on Figure 1 It can be clearly seen that the support portion 30 includes a reinforcing portion 32 extending laterally outward around the second wall 31. A plurality of first reinforcing ribs 33 are provided on the reinforcing portion 32. The reinforcing portion 32 extending laterally outward not only makes the connection more stable, but also allows the stress at the location of the air passage 10 to be released and reduced laterally, so that the lost strength is better strengthened.

[0041] A preferred embodiment further includes that the support portion 30 covers most of the area outside the bottom wall 13. For example, the range covered by the reinforcement portion 32 can be made as large as possible. In the embodiment shown in the drawings, the support portion 30 almost covers the entire outside of the bottom wall 13, so that the bottom wall 13 can be reinforced as a whole.

[0042] When the range covered by the support portion 30 is large enough, a bearing 36 can be provided on the support portion 30 near the center area. A second hole 133 is provided at the center of the bottom wall 13. The drive shaft 3 is supported by the bearing 36, passes through the second hole 133 on the bottom wall 13, and is fixedly connected to the bracket 4 connected to the drum 2. The drive shaft 3 can then transmit the rotational motion of the motor (not shown in the drawings) to drive the drum 2 in the barrel 1 to rotate. Preferably, since the force borne by the bearing 36 is relatively large, the bearing 36 is reinforced by a plurality of first reinforcing ribs 37.

[0043] Preferably, the air passage 10 avoids the bearing 36 and presents a substantially "C"-shaped extension path. In this way, the path of the air passage 10 can be as long as possible.

[0044] In some embodiments, the support portion 30 is made of a second material different from the first material. In particular, the second material can be a material having higher strength and / or rigidity than the first material, for example, the second material includes polypropylene containing glass fiber.

[0045] The second material preferably has higher requirements for strength and / or rigidity, thereby effectively strengthening the barrel 1. Therefore, the recycling rate of the second material can be given a lower priority. Therefore, the recycling rate of the first material can be higher than that of the second material. Since the barrel body 11 occupies a significantly larger part of the barrel 1, the recyclable part of the barrel 1 accounts for a higher proportion, while the overall strength and rigidity of the barrel 1 can be guaranteed.

[0046] Since no additional components need to be installed from the inner side of the bottom wall 13 , the inner side of the bottom wall 13 , ie, the side away from the support portion 30 , is flat as a whole.

[0047] In addition, the first wall 131 is on the same extension plane as the bottom wall 13. It can be understood that the first wall 131 does not sink or protrude inwardly or outwardly relative to the rest of the bottom wall 13. The support portion 30 includes a first surface 34 facing the bottom wall 13 and a second surface 35 facing away from the bottom wall 13. The second wall 31 is recessed relative to the first surface 34 in a direction away from the first wall.

[0048] like Figure 2 and Figure 4 As shown, the first reinforcing ribs 33 are evenly distributed around the bearing 36 on the side of the support portion 30 facing away from the bottom wall 13. The first reinforcing ribs 33 are distributed radially.

[0049] Preferably, the area covered by the first reinforcing ribs 33 includes the second wall 31, that is, a plurality of first reinforcing ribs 33 are also provided on the side of the second wall 31 facing away from the bottom wall, so that the second wall 31 is also reinforced. From the thickness direction, the closer the area is to the center position where the bearing 36 is located, the higher the height of the first reinforcing ribs 31 is. The height of the first reinforcing ribs 31 at the location of the second wall 31 is lower than the height of the first reinforcing ribs 31 at the location of the reinforcing portion 32.

[0050] A plurality of second reinforcing ribs 135 are provided on the outer side of the bottom wall 13, that is, on the side facing the support portion 30, away from the first wall 131. The second reinforcing ribs 135 are distributed substantially radially around the second hole 133 and are uniform in the circumferential direction.

[0051] The support portion 30 is welded to the bottom wall 13 at the second reinforcing ribs 135. In particular, the reinforcing portion 32 of the support portion 30 is welded to the plurality of second reinforcing ribs 135, and the welding surface is flat. Therefore, not only the second reinforcing ribs 135 themselves play a reinforcing role, but also the connection between the support portion 30 and the bottom wall 13 is more firmly connected, further enhancing the strength of the barrel 1, especially ensuring the strength of the position where the air passage 10 is located.

[0052] The preferred embodiment also includes that at least part of the first reinforcing ribs 31 corresponds to at least part of the second reinforcing ribs 135, so that stress can be better transferred.

[0053] The preferred embodiment also includes that at least part of the first reinforcing rib 31 passes through front and back and is welded to the second reinforcing rib 135. The position where the first reinforcing rib 31 passes through front and back can be regarded as a hollow state, and the first reinforcing rib 31 can directly contact the second reinforcing rib 135 and be welded to each other.

[0054] Through the first reinforcing rib 31, the second reinforcing rib 135, and the large-area welding of the support portion 30 and the bottom wall 13, the support portion 30 and the bottom wall 13 form a stable and high-strength integrated structure, while hiding the air passage 10 therein, achieving a perfect combination of high strength and space saving.

[0055] like Figure 1 As shown, the support portion 30 includes an outlet connection portion 37 connected to the external air channel 20, especially connected to the air inlet portion 22 of the external air channel 20. The outlet connection portion 37 has a cross section that is larger than the flow cross section of the air channel 10.

[0056] In some embodiments of the present invention, the air channel 10 provides a space for heat exchange. During the drying process, the hot air carrying evaporated moisture is cooled in the air channel 10, and the moisture in the air is condensed into water and discharged. The dry air then enters the external air channel 20, is heated by a heating device (not shown in the drawings) in the external air channel 20, and then re-enters the barrel body 11 to heat and evaporate moisture, and the cycle is repeated.

[0057] Then the heat exchange device 40 is connected to the air passage 10, and the cooling medium is introduced to exchange heat with the air passing through the air passage 10. The heat exchange device 40 can be a water-cooled, air-cooled, or heat pump type heat exchange device. As for these types of heat exchange devices, they are more common in the field of washing and drying machines, and are not described in detail one by one. Figure 1 and Figure 2 The water-cooled heat exchange device 40 is used as an example for a brief description. Figure 1 and Figure 2 In the illustrated embodiment, the heat exchange device 40 is implemented as a water inlet pipe whose outlet is located in the air passage 10. The water inlet pipe can introduce cooling water to form a water film and / or water curtain in the air passage 10 to cool the hot and humid air in contact with the water inlet pipe, so that the moisture in the air is condensed and separated from the air.

[0058] The various specific embodiments described above and shown in the drawings are only used to illustrate the present invention. Within the scope of the basic technical concept of the present invention, any form of changes made by ordinary technicians in the relevant technical field to the present invention are within the protection scope of the present invention.

Claims

1. A barrel for a drum-type washing and drying machine, comprising a barrel body (11), a first side of the barrel body having an opening (12), a second side opposite to the first side having a bottom wall (13), characterized in that: The support portion (30) is connected to the bottom wall from the outside of the bottom wall, the side of the bottom wall facing the support portion has a first wall (131), and the side of the support portion facing the bottom wall has a second wall (31) opposite to the first wall. After the support portion is connected to the bottom wall, an air channel (10) is formed between the first wall and the second wall, one of the inlet (101) and the outlet (102) of the air channel is located on the bottom wall, and the other of the inlet and the outlet of the air channel is at least partially located on the support portion, and the support portion includes a reinforcing portion (32) extending laterally outward around the second wall, and a plurality of first reinforcing ribs (33) are provided on the reinforcing portion.

2. The barrel according to claim 1, characterized in that: The side of the bottom wall away from the supporting portion is flat as a whole, and / or the first wall and the rest of the bottom wall are on the same extension plane, the supporting portion comprises a first surface (34) facing the bottom wall and a second surface (35) away from the bottom wall, and the second wall is recessed relative to the first surface (34) in a direction away from the first wall.

3. The barrel according to claim 1, characterized in that: The bottom wall (13) has a plurality of second reinforcing ribs (135) on one side facing the support portion and at a position avoiding the first wall (131), and the support portion (30) and the bottom wall (13) are welded at the second reinforcing ribs (135).

4. The barrel according to claim 3, characterized in that: At least a portion of the first reinforcing ribs (33) and at least a portion of the second reinforcing ribs (135) correspond in position.

5. The barrel according to claim 4, characterized in that: At least a portion of the first reinforcing ribs penetrates front to back and is welded to the second reinforcing ribs.

6. The barrel according to claim 1, characterized in that: A plurality of first reinforcing ribs (33) are provided on a side of the second wall (31) facing away from the bottom wall.

7. The bucket according to claim 6, characterized in that: The first reinforcing ribs are evenly distributed circumferentially on a side of the support portion facing away from the bottom wall.

8. The bucket according to claim 1, characterized in that: The barrel body (11) is made of a first material, and the support portion (30) is made of a second material, the first material has a higher recycling rate than the second material, and / or the second material has a higher strength than the first material.

9. The bucket according to claim 8, characterized in that: The first material includes polypropylene containing talc, and / or the second material includes polypropylene containing glass fiber.

10. The bucket according to claim 1, characterized in that: A bearing (36) is provided near the center area of ​​the support portion (30), and a second hole (133) is provided on the bottom wall. The drive shaft (3) is supported by the bearing (36) and passes through the second hole to drive the drum (2) in the barrel. The periphery of the bearing is reinforced by a plurality of the first reinforcing ribs (33).

11. The bucket according to claim 10, characterized in that: The air passage (10) avoids the bearing (36) and presents a substantially "C"-shaped extension path.

12. The bucket according to claim 1, characterized in that: The supporting portion (30) covers most of the outer area of ​​the bottom wall.

13. The bucket according to claim 1, characterized in that: The support portion (30) includes an outlet connection portion (37) connected to the external air passage (20), wherein the outlet connection portion (37) has a cross section that is larger than a flow cross section of the air passage (10).

14. The bucket according to claim 1, characterized in that: The barrel body (11) comprises a front barrel (111) and a rear barrel (112), the opening (12) is located on the front barrel (111), the bottom wall (13) is located on the rear barrel (112), and the front barrel and the rear barrel are made of the same recyclable material.

15. A drum-type washing and drying machine, characterized in that: It comprises a barrel (1) as described in any one of claims 1 to 14, an external air channel (20) is connected to the air channel (10), a blowing device (21) is provided in the external air channel to promote air circulation, and a driving shaft (3) passes through the supporting part (30) and the bottom wall (13) and is connected to the drum (2) located in the barrel.

16. The drum type washing and drying machine according to claim 15, characterized in that: The heat exchange device (40) is connected to the air passage (10) and introduces a cooling medium to perform heat exchange with the air passing through the air passage (10).

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