Clothes dryer

Abstract

The utility model belongs to the technical field of household appliances, and discloses a clothes dryer which comprises a box body with a rear side plate, a bearing mounting seat, a fan cover, a bearing and a sealing cover, the bearing mounting seat and the fan cover are arranged on the rear side plate, the bearing is mounted on the bearing mounting seat, the sealing cover is arranged on the fan cover, and the rear side plate and the fan cover define an air channel. The sealing cover is arranged in the air duct, the bearing mounting seat comprises a sunken part which is inwards sunken towards one side far away from the fan cover, the sealing cover and the bottom surface of the sunken part are encircled to form a sealing chamber which is isolated from the air duct, and the bearing is arranged in the sealing chamber. The sealing chamber isolated from the air duct is defined by the sealing cover and the bottom surface of the sunken part, and the bearing arranged in the sealing chamber is isolated and protected, so that the bearing is prevented from being directly exposed in the air duct between the box body and the rear cover plate.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a clothes dryer. Background Art

[0002] In the prior art, a clothes dryer includes a drum for holding clothes and a drum shaft, a bearing is installed on the shaft, and the drum is rotatably connected to the rear side plate of the housing through the drum shaft and the bearing. In order to better blow hot air into the drum, an air duct is generally provided on the rear side of the drum, and the air duct is composed of a fan cover and the rear side plate of the housing. In the existing clothes dryer, the bearing is directly exposed to the air duct between the housing and the rear cover plate. During the drying process of the clothes dryer, thread scraps will enter the air duct. The thread scraps in the air duct enter the bearing, which will cause abnormal noise when the bearing is running. At the same time, the high-temperature hot air generated by the heater flows into the air path, so that the bearing is directly placed in a high-temperature environment. The lubricating grease on the bearing is easily worn out in a high-temperature environment for a long time, which causes abnormal noise when the bearing is running. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art that the bearings of the dryer are directly exposed to the air duct, the lubricating grease loss of the bearings is too high in a high temperature environment, and impurities in the air duct are easily drawn into the bearings, resulting in a large abnormal noise when the bearings rotate, the utility model provides a dryer that isolates and protects the bearings through a sealed chamber.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a dryer, including a box body with a rear side panel, a bearing mounting seat and a fan cover arranged on the rear side panel, a bearing mounted on the bearing mounting seat, and a sealing cover arranged on the fan cover, the rear side panel and the fan cover together form an air duct, the sealing cover is arranged in the air duct, the bearing mounting seat includes a recessed portion concave inwardly toward a side away from the fan cover, the sealing cover and the bottom surface of the recessed portion together form a sealed chamber isolated from the air duct, and the bearing is arranged in the sealed chamber.

[0005] In the above technical solution, a sealed chamber isolated from the air duct is formed by enclosing the sealing cover and the bottom surface of the recessed portion, and the bearings arranged in the sealed chamber are isolated and protected, so as to avoid the bearings being directly exposed to the air duct between the housing and the rear cover plate, and to prevent wire scraps and other impurities from entering the bearings, and to prevent impurities from entering the bearings and causing abnormal noises when the bearings are running. At the same time, the bearings are also prevented from contacting with hot air, and the bearing temperature can be prevented from being too high, and the lubricating grease can be prevented from being easily lost due to being in a high temperature environment for a long time, which ultimately leads to the bearings not rotating smoothly and causing abnormal noises. Among them, the recessed portion and the sealing cover form a sealed chamber, and the sealing requirements at the connection position when forming the sealed chamber are higher. The recessed portion is concave, and the recessed portion with high requirements for plane quality can be processed in a targeted manner, which is conducive to reducing the manufacturing difficulty and reducing the manufacturing cost. In addition, the recessed portion is concave, and a bend is formed on the bearing mounting seat, which can improve the strength of the bearing mounting seat.

[0006] The utility model is further configured as follows: a sealing ring is provided between the sealing cover and the recessed portion.

[0007] In the above technical solution, by providing a sealing ring between the sealing cover and the recessed portion, the sealing between the sealing cover and the recessed portion can be increased, and hot air, wire scraps and other impurities can be better prevented from entering the sealing chamber, thereby better protecting the bearing.

[0008] The utility model is further configured as follows: an annular groove is provided on the sealing ring, the end of the sealing cover extends into the annular groove and is tightly fitted and fixed with the sealing ring, and the sealing ring is pressed against the bottom surface of the recessed portion.

[0009] In the above technical solution, during installation, the sealing ring can be positioned by the end of the sealing cover cooperating with the annular groove. It can be quickly installed by simply aligning the end of the sealing cover with the annular groove and pressing it into place. Similarly, it can be easily disassembled when replacement or maintenance is required. In addition, the end of the sealing cover extends into the annular groove and is tightly fitted with the sealing ring, and the sealing ring is tightly pressed against the bottom surface of the recessed portion. The connection between the sealing cover and the sealing ring is more stable. Even if vibration or temperature changes occur during the operation of the dryer, it is not easy to cause the sealing ring to fall off or move, which is conducive to improving the sealing stability of the sealing chamber.

[0010] The utility model is further configured as follows: an annular convex rib integrally formed with the fan cover is provided on the inner wall of the fan cover, and a portion of the fan cover arranged within the enclosed range of the annular convex rib and the annular convex rib constitute the sealing cover.

[0011] In the above technical solution, the annular rib is integrally formed with the fan cover, which can reduce additional components and assembly steps, simplify the manufacturing process, and reduce production costs. In addition, the annular rib is integrally formed with the fan cover, and no additional assembly or connectors are required. When performing maintenance or replacing parts, the operation is simpler and faster, and there is no need to worry about the complexity or loss of multiple small parts. In addition, the annular rib is integrally formed with the fan cover, which increases the stability of the annular rib connection, so that the sealing cover can better withstand the vibration and thermal expansion generated during the operation of the dryer, which is beneficial to improving the sealing stability of the sealing chamber.

[0012] The utility model is further configured as follows: the bearing mounting seat also includes a connecting portion arranged at the periphery of the recessed portion, the connecting portion is fixed to the rear side plate, and the connecting portion and the recessed portion are transitioned through a conical surface.

[0013] In the above technical solution, the recessed portion and the sealing cover form a sealed chamber, and the plane quality requirements of the recessed portion are higher. The connecting portion is fixed to the rear side plate, and the plane quality requirements are not high. By distinguishing different areas of the bearing mounting seat, the areas with high plane quality requirements can be processed in a targeted manner, which is conducive to reducing the manufacturing difficulty and reducing the manufacturing cost. In addition, the connecting portion and the recessed portion transition through a conical surface, which can play a guiding role when the fan cover is installed, facilitating the installation of the fan cover. In addition, the connecting portion and the recessed portion transition through a conical surface, and there is a bend on the bearing mounting seat, which can improve the strength of the bearing mounting seat.

[0014] The utility model is further configured as follows: a plurality of mesh parts are provided on the rear side plate, the plurality of mesh parts are axially spaced and arranged on the outer edge of the bearing mounting seat, and a plurality of through holes for connecting the air duct and the inside of the box body are provided on the mesh part.

[0015] In the above technical solution, in the dryer, the area facing the bearing is the drum area, and the mesh part is arranged on the outer edge of the bearing mounting seat. The hot air in the air duct can enter the drum more quickly through the through holes on the mesh part, which is beneficial to the drying of the dryer.

[0016] The utility model is further configured as follows: a fan is arranged in the air duct at a position far away from the bearing mounting seat, and the fan is mounted on the rear side plate.

[0017] In the above technical solution, the fan accelerates the hot air circulation, which is beneficial to improving the drying efficiency of the clothes dryer. The fan is arranged in the air duct at a position away from the bearing mounting seat, and the fan is located in the air duct, which is beneficial to the transmission of hot air. The fan is installed on the rear side plate, and the fan and the mesh part are on the same side, which is beneficial to the transmission of hot air.

[0018] The beneficial effects of the utility model are as follows: the bearing is isolated and protected by the sealing chamber, so that the bearing is prevented from being directly exposed to the air path between the housing and the rear cover plate, and wire scraps and other impurities are prevented from entering the bearing, and impurities are prevented from entering the bearing to cause abnormal noise when the bearing is running. At the same time, the bearing is also avoided from contacting with hot air, so that the bearing temperature is prevented from being too high, and the lubricating grease is prevented from being easily lost in a high temperature environment for a long time, which ultimately leads to the bearing not rotating smoothly and producing abnormal noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the sealing ring in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the fan cover in the utility model.

[0023] In the figure: box body 1; rear side plate 100; mesh portion 120; bearing mounting seat 200; bearing 210; recessed portion 220; connecting portion 230; fan cover 300; sealing cover 310; annular rib 320; air duct 400; sealing chamber 500; sealing ring 600; annular groove 610; fan 700. DETAILED DESCRIPTION

[0024] In the description of this embodiment, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the utility model. In addition, if the terms "first", "second", and "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Embodiment 1:

[0027] like Figures 1 to 4As shown, a clothes dryer includes a housing 1 having a rear side plate 100, a bearing mounting seat 200 and a fan cover 300 arranged on the rear side plate 100, a bearing 210 mounted on the bearing mounting seat 200, and a sealing cover 310 arranged on the fan cover 300, the rear side plate 100 and the fan cover 300 together form an air duct 400, the sealing cover 310 is arranged in the air duct 400, the bearing mounting seat 200 includes a recessed portion 220 recessed toward a side away from the fan cover 300, the sealing cover 310 and the bottom surface of the recessed portion 220 together form a sealed chamber 500 isolated from the air duct 400, and the bearing 210 is arranged in the sealed chamber 500.

[0028] In this embodiment, the sealing cover 310 and the bottom surface of the recessed portion 220 are combined to form a sealed chamber 500 isolated from the air duct 400, and the bearing 210 disposed in the sealed chamber 500 is isolated and protected, so that the bearing 210 is prevented from being directly exposed to the air duct 400 between the housing 1 and the rear cover plate, and wire scraps and other impurities can be prevented from entering the bearing 210, and impurities can be prevented from entering the bearing 210 to cause abnormal noise when the bearing 210 is running. At the same time, the contact between the bearing 210 and the hot air can also be avoided, so that the temperature of the bearing 210 can be prevented from being too high, and the grease can be prevented from being easily lost in a high temperature environment for a long time, which eventually causes the bearing 210 to rotate poorly and produce abnormal noise. Among them, the recessed portion 220 and the sealing cover 310 form a sealed chamber 500. When forming the sealed chamber 500, the sealing requirements of the connection position are higher. The recessed portion 220 is concave, and the area with high requirements for plane quality can be processed in a targeted manner, which is conducive to reducing the manufacturing difficulty and reducing the manufacturing cost. In addition, the recessed portion 220 is concave, forming a bend on the bearing mounting seat 200 , which can improve the strength of the bearing mounting seat 200 .

[0029] The clothes dryer also includes a drum, a heater, a return air duct, and a fan 700, wherein the hot air heats the air, and the fan 700 blows the hot air out to form hot air, and blows the hot air into the drum, and then passes through the return air duct. A filter is provided in the return air duct to filter the hot air, and the filtered air enters the heater position again.

[0030] Specifically, Figure 2 As shown, a sealing ring 600 is provided between the sealing cover 310 and the recessed portion 220. By providing the sealing ring 600 between the sealing cover 310 and the recessed portion 220, the sealing performance between the sealing cover 310 and the recessed portion 220 can be increased, and hot air, wire scraps and other impurities can be better prevented from entering the sealing chamber 500, thereby better protecting the bearing 210.

[0031] Specifically, Figures 2 to 4As shown, the sealing ring 600 has an annular groove 610, and the end of the sealing cover 310 extends into the annular groove 610 and is tightly fitted and fixed with the sealing ring 600, and the sealing ring 600 is pressed against the bottom surface of the recessed portion 220. During installation, the sealing ring 600 can be positioned by the end of the sealing cover 310 and the annular groove 610. It is only necessary to align the end of the sealing cover 310 with the annular groove 610 and press it into place to achieve quick installation; similarly, it can also be easily disassembled when replacement or maintenance is required. In addition, the end of the sealing cover 310 extends into the annular groove 610 and is tightly fitted and fixed with the sealing ring 600, and the sealing ring 600 is pressed against the bottom surface of the recessed portion 220. The connection between the sealing cover 310 and the sealing ring 600 is more stable. Even if vibration or temperature changes occur during the operation of the dryer, it is not easy to cause the sealing ring 600 to fall off or move, which is conducive to improving the sealing stability of the sealing chamber 500.

[0032] Specifically, Figure 2 and Figure 4 As shown, the inner wall of the fan cover 300 is provided with an annular convex rib 320 integrally formed with the fan cover 300, and the portion of the fan cover 300 disposed within the enclosed range of the annular convex rib 320 and the annular convex rib 320 form a sealing cover 310. The annular convex rib 320 is integrally formed with the fan cover 300, which can reduce additional components and assembly steps, simplify the manufacturing process, and reduce production costs. In addition, the annular convex rib 320 is integrally formed with the fan cover 300, and does not require additional assembly or connectors. When performing maintenance or replacing parts, the operation is simpler and faster, and there is no need to worry about the complexity or loss that may be caused by multiple small parts. In addition, the annular convex rib 320 is integrally formed with the fan cover 300, which increases the stability of the connection of the annular convex rib 320, so that the sealing cover 310 can better withstand the vibration and thermal expansion generated during the operation of the dryer, which is conducive to improving the sealing stability of the sealing chamber 500.

[0033] Specifically, Figure 2 As shown, the bearing mounting seat 200 also includes a connecting portion 230 disposed on the periphery of the recessed portion 220, the connecting portion 230 is fixed to the rear side plate 100, and the connecting portion 230 and the recessed portion 220 are transitioned through a conical surface. The recessed portion 220 and the sealing cover 310 form a sealing chamber 500, which has higher requirements on the plane quality of the recessed portion 220. The connecting portion 230 is fixed to the rear side plate 100, and the plane quality requirements are not high. By distinguishing different areas of the bearing mounting seat 200, the areas with high requirements on the plane quality can be processed in a targeted manner, which is conducive to reducing the manufacturing difficulty and reducing the manufacturing cost. In addition, the connecting portion 230 and the recessed portion 220 are transitioned through a conical surface, which can play a guiding role when the fan cover 300 is installed, and it is convenient for the fan cover 300 to be installed. In addition, the connecting portion 230 and the recessed portion 220 are transitioned through a conical surface, and the bearing mounting seat 200 has a bend, which can improve the strength of the bearing mounting seat 200.

[0034] Specifically, Figure 1 As shown, a plurality of mesh portions 120 are provided on the rear side plate 100, and the plurality of mesh portions 120 are axially spaced and arranged at the outer edge of the bearing mounting seat 200, and a plurality of through holes for connecting the air duct 400 and the interior of the housing 1 are provided on the mesh portion 120. In the clothes dryer, the area facing the bearing 210 is the drum area, and the mesh portion 120 is arranged at the outer edge of the bearing mounting seat 200, so that the hot air in the air duct 400 can enter the drum more quickly through the through holes on the mesh portion 120, which is beneficial to the drying of the clothes dryer.

[0035] Specifically, Figure 1 As shown, a fan 700 is provided in the air duct 400 at a position away from the bearing mounting seat 200, and the fan 700 is installed on the rear side plate 100. The fan 700 accelerates the hot air circulation, which is beneficial to improving the drying efficiency of the dryer. Among them, the fan 700 is arranged in the air duct 400 at a position away from the bearing mounting seat 200. The fan 700 is located in the air duct 400, which is beneficial to the transmission of hot air, and the fan 700 is installed on the rear side plate 100. The fan 700 and the mesh portion 120 are on the same side, which is beneficial to the transmission of hot air. Among them, it should be noted that in order to better display the internal structure, Figure 1 A portion of the fan cover is cut away.

[0036] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above-mentioned utility model, which fall within the scope of protection of the present invention.

Claims

1. A clothes dryer, characterized in that: It includes a box body with a rear side plate, a bearing mounting seat and a fan cover arranged on the rear side plate, a bearing mounted on the bearing mounting seat, and a sealing cover arranged on the fan cover, the rear side plate and the fan cover together form an air duct, the sealing cover is arranged in the air duct, the bearing mounting seat includes a recessed portion concave inwardly toward a side away from the fan cover, the sealing cover and the bottom surface of the recessed portion together form a sealed chamber isolated from the air duct, and the bearing is arranged in the sealed chamber.

2. A clothes dryer according to claim 1, characterized in that: A sealing ring is provided between the sealing cover and the recessed portion.

3. A clothes dryer according to claim 2, characterized in that: The sealing ring has an annular groove, the end of the sealing cover extends into the annular groove and is tightly fitted and fixed with the sealing ring, and the sealing ring is tightly pressed against the bottom surface of the recessed portion.

4. A clothes dryer according to claim 1, characterized in that: An annular convex rib integrally formed with the fan cover is provided on the inner wall of the fan cover, and a portion of the fan cover disposed within the enclosed range of the annular convex rib and the annular convex rib constitute the sealing cover.

5. A clothes dryer according to claim 1, characterized in that: The bearing mounting seat further comprises a connecting portion arranged at the periphery of the recessed portion, the connecting portion is fixed to the rear side plate, and the connecting portion and the recessed portion are transitioned through a conical surface.

6. A clothes dryer according to any one of claims 1 to 5, characterized in that: The rear side plate is provided with a plurality of mesh parts, which are axially spaced and arranged at the outer edge of the bearing mounting seat, and the mesh parts are provided with a plurality of through holes for connecting the air duct and the inside of the box body.

7. A clothes dryer according to any one of claims 1 to 5, characterized in that: A fan is provided in the air duct at a position far away from the bearing mounting seat, and the fan is mounted on the rear side plate.

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