Roller sealing structure of clothes dryer and clothes dryer

Abstract

The utility model discloses a roller sealing structure of a clothes dryer and the clothes dryer, and the roller sealing structure comprises a sealing felt which is in sealing contact with the rear end part of a roller; the elastic cushion and the sealing felt are fixedly arranged, and the elastic cushion is used for pushing the sealing felt to abut against the rear end of the roller; the sealing felt is of an annular structure, and the front end face of the sealing felt is obliquely arranged in the direction close to the roller in the inward direction. The front end face of the sealing felt is arranged in an inclined mode, so that the elastic cushion can provide radial and axial elastic force for the sealing felt, sealing of the sealing felt and the roller can be guaranteed under pushing of the elastic cushion after the roller has radial deviation and axial deviation, and the sealing performance is guaranteed. And the sealing performance can be ensured under the condition that the elastic force provided by the elastic cushion is relatively small, so that the abrasion to the sealing felt is reduced, and the motor energy consumption caused by friction force is reduced. The roller sealing structure extends outwards in the forward direction, structural arrangement of the elastic cushion is facilitated, and it is guaranteed that the elastic cushion provides forward pushing force for the sealing felt.

Description

Technical Field

[0001] The utility model belongs to the technical field of clothes dryers, and in particular relates to a drum sealing structure of a clothes dryer and a clothes dryer with the drum sealing structure. Background Art

[0002] The dryer dries clothes quickly by raising and lowering the temperature, increasing the airflow speed, and expanding the evaporation area. It uses circulating hot air to condense the water vapor evaporated from the clothes into water through the condenser and then discharge it from the dryer. This requires a sealing device to be set between the hot air duct system and the drum of the dryer to minimize the heat loss of the circulating hot air flow.

[0003] Patent CN201210559400.7 discloses a dryer drum sealing device, which is arranged between the rear end of the dryer drum and the inner side wall of the drum support plate of the rear housing of the dryer, and includes an annular sealing felt and an annular rubber pad. The sealing felt is arranged between the rubber pad and the rear end of the drum, and is matched with and in contact with the annular shape of the rear end of the drum. The sealing felt is connected to the rubber pad, and the rubber pad is fixed on the inner side wall of the drum support plate of the rear housing of the dryer. The sealing device is also provided with an elastic buffer component, which is arranged between the inner side wall of the drum support plate of the rear housing of the dryer and the rubber pad, and is connected to the inner side wall of the drum support plate of the rear housing of the dryer. The elastic buffer component is provided to support the rubber pad, so that the sealing felt is always in contact with the rear end of the drum during the rotation of the drum, and at the same time, the impact of the drum on the dryer housing is buffered.

[0004] When the dryer is working, the drum undergoes radial and axial displacements due to its rotation. The sealing felt and rubber pad are always connected to the rear end of the dryer drum under the support of the annular sponge. Since there is rotational friction between the drum and the sealing felt and the contact surface is large, the elastic force of the annular sponge and the rubber pad on the sealing felt must be relatively large, resulting in serious wear of the sealing felt and a shortened service life of the sealing felt. At the same time, the friction between the sealing felt and the drum increases, which also increases the rotation resistance of the drum, thereby increasing the energy consumption of the motor driving the drum to rotate. Moreover, the sealing felt is in vertical plane contact with the rear end of the drum, so that the axial deviation of the drum can be compensated in time to ensure sealing. However, due to the radial deviation of the drum, one part of the sealing felt will be in close contact with the drum, while the other part will be in loose contact with the drum, or even out of contact, resulting in leakage of hot air flow in the hot air channel, affecting the drying effect.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In view of the above-mentioned problems in the prior art, the utility model proposes a drum sealing structure for a clothes dryer, in which the front end surface of the sealing felt is arranged to be inclined, which is beneficial for the elastic pad to provide radial and axial elastic forces for the sealing felt, so as to promote the seal between the sealing felt and the drum; and is beneficial for reducing the wear on the sealing felt and reducing the energy consumption of the motor caused by friction.

[0007] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0008] A drum sealing structure of a clothes dryer, comprising:

[0009] A sealing felt in sealing contact with the rear end of the drum;

[0010] an elastic pad fixedly arranged with the sealing felt and used for pushing the sealing felt against the rear end of the drum;

[0011] The sealing felt is an annular structure, the drum sealing structure is arranged to extend obliquely in the forward direction, and the front end surface of the sealing felt is arranged to be inclined in the inward direction toward the drum.

[0012] In some embodiments of the present application, the drum sealing structure is arranged to extend outwardly and obliquely in a forward direction.

[0013] In some embodiments of the present application, an inclined mating surface matching the front end surface of the sealing felt is provided at the rear end portion of the roller.

[0014] In some embodiments of the present application, the front end surface of the sealing felt is an inclined plane, and the rear end surface of the sealing felt is arranged parallel to its front end surface.

[0015] In some embodiments of the present application, the angle between the front end surface of the sealing felt and the horizontal plane is 50° to 70°.

[0016] In some embodiments of the present application, the angle between the front end surface of the sealing felt and the horizontal plane is 55° to 65°.

[0017] In some embodiments of the present application, the elastic pad is fixed on the roller support plate, and the front end surface of the elastic pad is arranged parallel to the sealing felt.

[0018] In some embodiments of the present application, the elastic pad is an annular structure, and the outer end surface of the elastic pad is extended outward in the forward direction.

[0019] In some embodiments of the present application, the inner end surface of the elastic pad is extended outward in a forward direction.

[0020] In some embodiments of the present application, the inner end surface of the elastic pad is arranged perpendicular to the front end surface of the elastic pad.

[0021] In some embodiments of the present application, the outer end surface of the elastic pad is arranged perpendicular to the front end surface of the elastic pad.

[0022] In some embodiments of the present application, the outer end surface of the elastic pad has a forward and outward inclined extension dimension that is smaller than the dimension of the rear end surface of the elastic pad in the inward and outward directions.

[0023] In some embodiments of the present application, the dimension of the inner end surface of the elastic pad extending in an inclined direction forward and outward is greater than or equal to the dimension of the rear end surface of the elastic pad in the inward and outward directions.

[0024] In some embodiments of the present application, the rear end surface of the elastic pad is arranged vertically.

[0025] In some embodiments of the present application, the elastic pad is made of sponge material.

[0026] Based on the above-mentioned drum sealing structure of a dryer, the utility model also provides a dryer with the above-mentioned drum sealing structure, in which the front end surface of the sealing felt is arranged to be inclined, which is beneficial for the elastic pad to provide radial and axial elastic forces for the sealing felt, so as to promote the seal between the sealing felt and the drum; and is beneficial for reducing the wear on the sealing felt and reducing the energy consumption of the motor caused by friction.

[0027] A clothes dryer comprises a box body and a drum, wherein the drum sealing structure is arranged between the box body and the rear end of the drum.

[0028] Compared with the prior art, the advantages and positive effects of the utility model are: the front end surface of the sealing felt is arranged to be inclined, which is conducive to the elastic pad providing radial and axial elastic forces for the sealing felt, so that after the roller has radial and axial offsets, the sealing of the sealing felt and the roller can be guaranteed under the push of the elastic pad, which is conducive to ensuring the sealing performance; and the sealing performance can also be guaranteed when the elastic force provided by the elastic pad is relatively small, which is conducive to reducing the wear on the sealing felt and reducing the motor energy consumption caused by friction. The drum sealing structure is arranged to extend in an inclined manner in the forward direction, which is conducive to the structural setting of the elastic pad and to ensuring that the elastic pad provides a forward driving force for the sealing felt.

[0029] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, a brief introduction will be given below to the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 This is a structural schematic diagram of an embodiment of a drum sealing structure of a clothes dryer proposed by the utility model;

[0032] Figure 2 for Figure 1 A schematic cross-sectional view of the sealing structure of the middle drum;

[0033] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0034] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the elastic pad;

[0035] Figure 5 for Figure 3 An enlarged structural diagram of the middle sealing felt;

[0036] Among them, the drum sealing structure 100;

[0037] Sealing felt 10; front end face 11 of the sealing felt; rear end face 12 of the sealing felt;

[0038] Elastic pad 20; front end surface 21 of the elastic pad; rear end surface 22 of the elastic pad; outer end surface 23 of the elastic pad; inner end surface 24 of the elastic pad;

[0039] Roller support plate 200;

[0040] Roller 300. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0042] In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the positional relationships shown in the accompanying drawings, with the direction close to the axis of the drum being "inside" and the opposite being "outside". The terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials. Example

[0046] See also Figure 1-Figure 5 , is an embodiment of a drum sealing structure of a clothes dryer proposed by the utility model, a drum sealing structure 100 of a clothes dryer is arranged between a drum supporting plate 200 of a clothes dryer housing and a rear end portion of a drum 300, and is used to play a sealing role. The drum sealing structure 100 is fixedly arranged on the rear plate of the housing 200, and the drum sealing structure 100 and the drum 300 can rotate relatively.

[0047] The drum sealing structure 100 includes: a sealing felt 10 and an elastic pad 20. The sealing felt 10 is in sealing contact with the rear end of the drum 300. The elastic pad 20 is fixedly arranged with the sealing felt 10, and the elastic pad 20 is used to push the sealing felt 10 against the rear end of the drum 300. The sealing felt 10 is an annular structure, and the front end surface 11 of the sealing felt 10 is inclined in the inward direction toward the drum 300. The front end surface of the sealing felt 10 is inclined, which is conducive to the elastic pad 20 providing radial and axial elastic forces for the sealing felt 10, so that after the drum 300 has radial offset and axial offset, the sealing felt 10 and the drum 300 can be sealed under the push of the elastic pad 20, which is conducive to ensuring the sealing performance; and the sealing performance can be ensured even when the elastic force provided by the elastic pad 20 is relatively small, which is conducive to reducing the wear of the sealing felt 10 when the drum 300 rotates, and reducing the motor energy consumption caused by friction. The drum sealing structure 100 is arranged to extend obliquely in the forward direction. Preferably, the drum sealing structure 100 is arranged to extend outward in the forward direction, which is beneficial to the structural setting of the elastic pad 20 and to ensure that the elastic pad 20 provides a forward driving force for the sealing felt 10 .

[0048] In some embodiments of the present application, an inclined mating surface matching the front end face 11 of the sealing felt 10 is provided at the rear end of the roller 300, so that the front end face 11 of the sealing felt 10 fits with the rear end of the roller 300, which is conducive to ensuring the contact area between the two and ensuring the sealing performance. The size of the inclined mating surface in the inner and outer directions is set to be larger than the size of the front end face 11 of the sealing felt 10 in the inner and outer directions, ensuring the contact area between the sealing felt 10 and the roller 300 after the roller 300 has radial deviation, thereby ensuring the sealing performance.

[0049] In some embodiments of the present application, the front end face 11 of the sealing felt 10 is an inclined plane, and the inclined mating surface provided at the rear end of the roller 300 is also an inclined plane. The rear end face 12 of the sealing felt 10 is arranged parallel to the front end face 11 of the sealing felt 10, that is, the sealing felt 10 is a sheet-like annular structure.

[0050] In some embodiments of the present application, the angle between the front end face 11 of the sealing felt 10 and the horizontal plane is 50° to 70°, and the angle between the front end face 11 of the sealing felt 10 and the horizontal plane is preferably set to 55° to 65°; more preferably, the angle between the front end face 11 of the sealing felt 10 and the horizontal plane is 60°.

[0051] In some embodiments of the present application, the elastic pad 20 is fixed on the roller support plate 200, and the front end face 21 of the elastic pad 20 is arranged parallel to the sealing felt 10; that is, the front end face 21 of the elastic pad 20 is arranged to be inclined forward in the inward direction, so that the contact area between the sealing felt 10 and the elastic pad 20 is larger, and the sealing felt 10 is bonded to the elastic pad 20.

[0052] In some embodiments of the present application, the elastic pad 20 is an annular structure, the outer end surface 23 of the elastic pad 20 is extended outward in the forward direction, and the inner end surface 24 of the elastic pad 20 is extended outward in the forward direction, so that the elastic pad 20 can easily provide an inclined driving force for the sealing felt 10. After the roller 300 has an axial or radial offset, the sealing felt 10 can maintain a seal with the roller support plate 200 under the push of the elastic pad 20.

[0053] In some embodiments of the present application, the inner end surface 24 of the elastic pad 20 is vertically arranged with the front end surface 21 of the elastic pad 20; the outer end surface 23 of the elastic pad 20 is vertically arranged with the front end surface 21 of the elastic pad 20. The rear end surface 22 of the elastic pad 20 is vertically arranged, and the rear end surface 22 of the elastic pad 20 is bonded to the roller support plate 200. The elastic pad 20 can be made of sponge material, rubber material, or silicone material.

[0054] In some embodiments of the present application, the outer end surface 23 of the elastic pad 20 extends forward and outward in an inclined manner, which is smaller than the dimension of the rear end surface 22 of the elastic pad 20 in the in-out direction. The inner end surface 24 of the elastic pad 20 extends forward and outward in an inclined manner, which is greater than or equal to the dimension of the rear end surface 22 of the elastic pad 20 in the in-out direction. Example

[0055] See also Figure 1-Figure 5 As shown, a clothes dryer comprises a housing and a drum 300, wherein the above-mentioned drum sealing structure 100 is provided between the housing and the rear end of the drum 300; the front end surface of the sealing felt 10 is arranged to be inclined, which is beneficial for the elastic pad to provide radial and axial elastic forces for the sealing felt 20, so as to promote the sealing between the sealing felt 10 and the drum 300; and it is beneficial for reducing the wear on the sealing felt 20 and reducing the energy consumption of the motor caused by friction.

[0056] The drum sealing structure 100 includes: a sealing felt 10 and an elastic pad 20. The sealing felt 10 is in sealing contact with the rear end of the drum 300. The elastic pad 20 is fixedly arranged with the sealing felt 10, and the elastic pad 20 is used to push the sealing felt 10 against the rear end of the drum 300. The sealing felt 10 is an annular structure, and the front end surface 11 of the sealing felt 10 is inclined in the inward direction toward the drum 300. The front end surface of the sealing felt 10 is inclined, which is conducive to the elastic pad 20 providing radial and axial elastic forces for the sealing felt 10, so that after the drum 300 has radial offset and axial offset, the sealing felt 10 and the drum 300 can be sealed under the push of the elastic pad 20, which is conducive to ensuring the sealing performance; and the sealing performance can be ensured even when the elastic force provided by the elastic pad 20 is relatively small, which is conducive to reducing the wear of the sealing felt 10 when the drum 300 rotates, and reducing the motor energy consumption caused by friction.

[0057] In some embodiments of the present application, an inclined mating surface matching the front end face 11 of the sealing felt 10 is provided at the rear end of the roller 300, so that the front end face 11 of the sealing felt 10 fits with the rear end of the roller 300, which is conducive to ensuring the contact area between the two and ensuring the sealing performance. The size of the inclined mating surface in the inner and outer directions is set to be larger than the size of the front end face 11 of the sealing felt 10 in the inner and outer directions, ensuring the contact area between the sealing felt 10 and the roller 300 after the roller 300 has radial deviation, thereby ensuring the sealing performance.

[0058] In some embodiments of the present application, the front end face 11 of the sealing felt 10 is an inclined plane, and the inclined mating surface provided at the rear end of the roller 300 is also an inclined plane. The rear end face 12 of the sealing felt 10 is arranged parallel to the front end face 11 of the sealing felt 10, that is, the sealing felt 10 is a sheet-like annular structure.

[0059] In some embodiments of the present application, the angle between the front end face 11 of the sealing felt 10 and the horizontal plane is 50° to 70°, and the angle between the front end face 11 of the sealing felt 10 and the horizontal plane is preferably set to 55° to 65°; more preferably, the angle between the front end face 11 of the sealing felt 10 and the horizontal plane is 60°.

[0060] In some embodiments of the present application, the elastic pad 20 is fixed on the roller support plate 200, and the front end face 21 of the elastic pad 20 is arranged parallel to the sealing felt 10; that is, the front end face 21 of the elastic pad 20 is arranged to be inclined forward in the inward direction, so that the contact area between the sealing felt 10 and the elastic pad 20 is larger, and the sealing felt 10 is bonded to the elastic pad 20.

[0061] In some embodiments of the present application, the elastic pad 20 is an annular structure, the outer end surface 23 of the elastic pad 20 is extended outward in the forward direction, and the inner end surface 24 of the elastic pad 20 is extended outward in the forward direction, so that the elastic pad 20 can easily provide an inclined driving force for the sealing felt 10. After the roller 300 has an axial or radial offset, the sealing felt 10 can maintain a seal with the roller support plate 200 under the push of the elastic pad 20.

[0062] In some embodiments of the present application, the inner end surface 24 of the elastic pad 20 is vertically arranged with the front end surface 21 of the elastic pad 20; the outer end surface 23 of the elastic pad 20 is vertically arranged with the front end surface 21 of the elastic pad 20. The rear end surface 22 of the elastic pad 20 is vertically arranged, and the rear end surface 22 of the elastic pad 20 is bonded to the roller support plate 200. The elastic pad 20 can be made of sponge material, rubber material, or silicone material.

[0063] In some embodiments of the present application, the outer end surface 23 of the elastic pad 20 extends forward and outward in an inclined manner, which is smaller than the dimension of the rear end surface 22 of the elastic pad 20 in the in-out direction. The inner end surface 24 of the elastic pad 20 extends forward and outward in an inclined manner, which is greater than or equal to the dimension of the rear end surface 22 of the elastic pad 20 in the in-out direction.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A drum sealing structure of a clothes dryer, characterized in that: include: A sealing felt in sealing contact with the rear end of the drum; an elastic pad fixedly arranged with the sealing felt and used for pushing the sealing felt against the rear end of the drum; The sealing felt is an annular structure, the drum sealing structure is arranged to extend obliquely in the forward direction, and the front end surface of the sealing felt is arranged to be inclined in the inward direction toward the drum.

2. The drum sealing structure according to claim 1, characterized in that: An inclined matching surface matching the front end surface of the sealing felt is provided at the rear end portion of the roller.

3. The drum sealing structure according to claim 1, characterized in that: The front end surface of the sealing felt is an inclined plane, and the rear end surface of the sealing felt is arranged parallel to its front end surface.

4. The drum sealing structure according to claim 1, characterized in that: The angle between the front end surface of the sealing felt and the horizontal plane is 50° to 70°.

5. The drum sealing structure according to any one of claims 1 to 4, characterized in that: The elastic pad is fixed on the roller support plate, and the front end surface of the elastic pad is arranged parallel to the sealing felt.

6. The drum sealing structure according to any one of claims 1 to 4, characterized in that: The elastic pad is an annular structure, and the outer end surface of the elastic pad is extended outward in the forward direction.

7. The drum sealing structure according to any one of claims 1 to 4, characterized in that: The inner end surface of the elastic pad is arranged perpendicularly to the front end surface of the elastic pad.

8. The drum sealing structure according to any one of claims 1 to 4, characterized in that: The outer end surface of the elastic pad has a forward and outward inclined extension dimension that is smaller than the extension dimension of the rear end surface of the elastic pad in the inward and outward directions.

9. The drum sealing structure according to any one of claims 1 to 4, characterized in that: The rear end surface of the elastic pad is arranged vertically.

10. A clothes dryer, comprising a housing and a drum, characterized in that: A drum sealing structure according to any one of claims 1 to 9 is provided between the box body and the rear end portion of the drum.

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