A washing machine motor end cover provided with a heat dissipation structure

Abstract

This invention discloses a washing machine motor end cover with a heat dissipation structure, comprising a motor end cover body, the motor end cover body including a cover shell, a flange fixed to the outer wall of the front end of the cover shell, and several sets of mounting holes disposed inside the flange. A bearing mounting part is fixed in the middle of the cover shell, and a bearing hole is opened inside the bearing mounting part. Several sets of air inlets communicating with the interior of the cover shell are opened at the bottom end of the cover shell, and several sets of air outlets are opened on the side wall of the cover shell. In this washing machine motor end cover with a heat dissipation structure, the air inlets are angled to prevent water vapor from entering directly upwards. The air guide plate ensures that air is evenly cooled inside the motor cover shell after passing through the air inlets and is discharged through the air outlets, preventing water from entering the motor end cover and achieving protection for the motor while also ensuring the heat dissipation effect of the motor end cover.

Description

Technical Field

[0001] This invention relates to the field of motor end cover technology, specifically to a washing machine motor end cover with a heat dissipation structure. Background Technology

[0002] The motor end cover of a washing machine is a cover plate located at the rear of the motor, and it is usually made of metal. In a washing machine, the motor end cover effectively isolates the internal components of the motor from the external environment, ensuring normal motor operation and extending its lifespan. At the same time, the end cover also serves to fix and support the motor, ensuring its stability and safety during operation.

[0003] For example, a Chinese authorized patent, publication number CN222827059U, describes a washing machine motor end cover with a heat dissipation structure. The end cover includes a motor end cover body, a fixed circular sleeve mounted on the outer wall of the body, and four sets of fixed cylinders connected to the outer wall of the sleeve. The fixed circular sleeve and the four sets of fixed cylinders each have a through-hole and a through-feature. A dustproof mesh is slidably connected to the inner wall of the through-hole, and a heat dissipation vent is provided on the side of the fixed circular sleeve near the through-hole. A heat dissipation structure is provided between the motor end cover body and the through-hole and the four sets of through-features. The heat dissipation structure includes a heat-conducting circular plate, and multiple sets of heat dissipation fins and copper heat dissipation pipes are connected to the side of the heat-conducting circular plate near the heat dissipation vent. This heat dissipation structure enables rapid heat dissipation from the washing machine motor, preventing motor malfunctions due to high temperatures. The dustproof mesh also prevents dust accumulation, ensuring proper heat dissipation and facilitating cleaning and replacement.

[0004] The aforementioned heat dissipation holes on the motor end cover are used for ventilation to enhance the dissipation of internal temperature of the motor. However, when the washing machine is working, it will rotate at high speed. The washing water and water carried by the clothes in the drum are subjected to strong centrifugal force and are thrown out from the assembly gap of the inner and outer drums, the drain hole of the drum body, and the periphery of the balance ring, forming a fine water mist and splashing water droplets. These water mist and water droplets are easy to drip onto the surface of the motor end cover. However, in existing technologies, the heat dissipation holes are designed to be straight in and straight out, which completely conflicts with heat dissipation and waterproofing. Specifically, if the opening is too large, water, moisture, and washing water mist will enter, causing condensation inside the motor and leakage due to moisture in the windings; if the opening is too small, there is no heat dissipation effect at all. The market cannot meet the usage requirements of high heat dissipation and high moisture resistance. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a washing machine motor end cover with a heat dissipation structure. The air inlet is angled to prevent water vapor from entering directly upwards. The air guide plate ensures that air is evenly cooled inside the motor cover after passing through the air inlet and is discharged through the air outlet, preventing water from entering the motor end cover and thus protecting the motor. It also ensures the heat dissipation effect of the motor end cover, solving the problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a washing machine motor end cover with a heat dissipation structure, comprising a motor end cover body, the motor end cover body comprising a cover shell, a flange fixed to the outer wall of the front end of the cover shell, and a plurality of mounting holes disposed inside the flange, a bearing mounting part fixed in the middle part of the cover shell, a bearing hole being provided inside the bearing mounting part, a plurality of air inlets communicating with the interior of the cover shell being provided at the bottom end of the cover shell, and a plurality of air outlets being provided on the side wall of the cover shell; A rotating plate is installed at the top of the cover, and guide parts are fixed at both ends of the rotating plate. The guide parts are inclined from front to back and to the left and right sides.

[0007] Preferably, the outer wall of the bearing mounting part is fixed with several sets of strip-shaped reinforcing ribs, and the several sets of strip-shaped reinforcing ribs are connected to the inner wall of the cover shell in a circumferentially distributed manner from front to back.

[0008] Preferably, each pair of adjacent reinforcing ribs forms a ventilation channel with the outer wall of the cover.

[0009] Preferably, each of the strip-shaped reinforcing ribs has a ventilation hole that penetrates the strip-shaped reinforcing rib, and the ventilation hole is connected to the ventilation groove.

[0010] Preferably, two sets of air guide plates are fixed on the inner wall of the cover, and several sets of air inlets are arranged on the opposite side of the two sets of air guide plates.

[0011] Preferably, the air guide plate has an arc surface at one end near the middle of the cover, and the arc surface is located on the lower end face of the top of the air guide plate.

[0012] Preferably, a first annular reinforcing rib is fixed between every two adjacent strip reinforcing ribs, and the first annular reinforcing rib is located at the end of the strip reinforcing rib near the bearing mounting part.

[0013] Preferably, a second annular reinforcing rib is fixed between each pair of adjacent strip reinforcing ribs, and the second annular reinforcing rib is located at the end of the strip reinforcing rib away from the bearing mounting part.

[0014] Preferably, a sliding groove is provided on the outer wall of the top of the cover shell, and a sliding block that cooperates with the sliding groove is fixed at the bottom of the rotating plate.

[0015] Preferably, a mounting block is fixed to one side of each of the two sets of guide portions that are far apart, and the mounting block is threadedly connected to the outer wall of the cover by mounting bolts.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a bearing mounting part, mounting holes, air inlet, air outlet, air guide plate and arc surface combination, the air inlet is set at an angle to avoid water vapor entering straight up and down. The air guide plate can ensure that the air can be evenly cooled inside the motor cover after passing through the air inlet and discharged through the air outlet, preventing water from entering the motor end cover, thus protecting the motor and ensuring the heat dissipation effect of the motor end cover.

[0017] 2. By using a combination of strip-shaped reinforcing ribs, ventilation slots, ventilation holes, first ring-shaped reinforcing ribs, and second ring-shaped reinforcing ribs, the strip-shaped reinforcing ribs can strengthen the support of the cover and enhance the stability of the equipment connection. At the same time, the two ring-shaped reinforcing ribs further strengthen the strip-shaped reinforcing ribs, achieving a reinforcement effect. Ventilation slots are set between multiple strip-shaped reinforcing ribs to facilitate the heat dissipation inside the cover. The ventilation holes connect multiple ventilation slots to accelerate heat dissipation efficiency.

[0018] 3. The rotating plate, guide, mounting block, and mounting bolts are used in combination. The rotating plate can rotate along the outer wall of the cover, causing the guide to rotate. The guide is used to guide water from the surface of the cover to drain out, and at the same time, it can prevent water vapor from entering the motor end cover through the air outlet, thus providing further protection and extending the service life of the motor. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear solid angle structure of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention.

[0020] In the diagram: 1. Motor end cover body; 2. Cover shell; 3. Flange; 311. Mounting hole; 411. Bearing mounting part; 412. Bearing hole; 413. Air inlet; 414. Air outlet; 415. Air guide plate; 416. Arc surface; 511. Strip-shaped reinforcing rib; 512. Ventilation slot; 513. Ventilation hole; 514. First ring-shaped reinforcing rib; 515. Second ring-shaped reinforcing rib; 611. Rotating plate; 612. Guide part; 613. Mounting block; 614. Mounting bolt. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0022] Reference Figure 1-3 As shown, a washing machine motor end cover with a heat dissipation structure includes a motor end cover body 1. The motor end cover body 1 includes a cover shell 2, a flange 3 fixed to the outer wall of the front end of the cover shell 2, and several sets of mounting holes 311 disposed inside the flange 3. A bearing mounting part 411 is fixed in the middle of the cover shell 2. The bearing mounting part 411 has a bearing hole 412 inside, which is used to install a motor bearing. Several sets of air inlets 413 connected to the inside of the cover shell 2 are opened at the bottom end of the cover shell 2. The air inlets 413 are inclined downward, which can better prevent water vapor from flowing into the inside of the cover shell 2 compared with the traditional straight up and down. Several sets of air outlets 414 are opened on the side wall of the cover shell 2. Outside air enters into the inside of the cover shell 2 through the several sets of air inlets 413 to achieve heat dissipation, and is discharged through the several sets of air outlets 414 to dissipate the hot air inside the cover shell 2.

[0023] Two sets of air guide plates 415 are fixed on the inner wall of the cover 2, and several sets of air inlets 413 are set on the opposite side of the two sets of air guide plates 415. The outside air is guided to the middle and upper part of the cover 2 through the two air guide plates 415, and finally discharged through the air outlets 414 on the left and right sides.

[0024] An arc surface 416 is provided at one end of the air guide plate 415 near the middle of the cover 2. The arc surface 416 is located on the lower end face of the top of the air guide plate 415. The arc surface 416 can extend the air circulation and gently guide the air flow to the middle and upper parts of the motor end cover body 1, so as to avoid obstruction of the outside air flow.

[0025] Several sets of strip-shaped reinforcing ribs 511 are fixed to the outer wall of the bearing mounting part 411. These ribs are connected to the inner wall of the cover shell 2 in a circumferentially distributed, inclined arrangement from front to back. The inclined strip-shaped reinforcing ribs 511 can be used for ventilation guidance, which helps to prolong the ventilation time on the surface of the strip-shaped reinforcing ribs 511 and improve the ventilation effect. The strip-shaped reinforcing ribs 511 mainly serve to support the bearing mounting part 411 and can be used to evenly transmit the load. A first annular reinforcing rib 514 is fixed between every two adjacent strip-shaped reinforcing ribs 511, and the first annular reinforcing rib 514 is located at the end of the strip-shaped reinforcing rib 511 closest to the bearing mounting part 411. A second annular reinforcing rib 515 is fixed between every two adjacent strip-shaped reinforcing ribs 511, and the second annular reinforcing rib 515 is located at the end of the strip-shaped reinforcing rib 511 furthest from the bearing mounting part 411. The first annular reinforcing rib 514 and the second annular reinforcing rib 515 support and reinforce both ends of the strip reinforcing rib 511, restraining the lateral instability of the radial rib and exponentially increasing the overall rigidity.

[0026] Each pair of adjacent strip-shaped reinforcing ribs 511 and the outer wall of the cover shell 2 form a ventilation channel. Multiple sets of strip-shaped reinforcing ribs 511 separate multiple independent ventilation channels, which are evenly distributed around the center, so that the 360° whole area is cooled evenly and local heat accumulation is avoided. At the same time, it breaks the dead zone of hot air stagnation on the leeward side of the traditional solid reinforcing rib, so that the airflow completely covers all areas inside the end cover, with no heat dissipation blind spots.

[0027] Each strip-shaped reinforcing rib 511 has a ventilation hole 513 that runs through it. The ventilation hole 513 is connected to the ventilation groove 512, which can connect multiple ventilation channels to ensure the uniformity of air circulation inside the cover 2 and meet the heat dissipation effect of the equipment.

[0028] A rotating plate 611 is installed at the top of the cover 2. Guide parts 612 are fixed at both ends of the rotating plate 611. The guide parts 612 are inclined from front to back and to the left and right sides. The rotating plate 611 and guide parts 612 can achieve a guiding effect. The water vapor inside the washing machine will fall on the cover 2 and be guided by the arc-shaped rotating plate 611 to the left and right sides, and then discharged by the guide parts 612. A sliding groove is opened on the outer wall of the top of the cover 2. A sliding block that cooperates with the sliding groove is fixed at the bottom of the rotating plate 611. The sliding block and sliding groove can ensure the stability of the rotation of the rotating plate 611. The rotating plate 611 can be adjusted by rotation to adapt to different installation environments. The guide parts 612 fit in close to the washing machine shell, and the outer wall and bottom of the cover 2 and the washing machine shell form a protective area. The washing machine shell is provided with air vents corresponding to the air outlet 414 and the air inlet 413. Adjusting the rotating plate 611 and the guide part 612 facilitates the control of the water vapor collection position and makes it easier to install and use on washing machine shells of different sizes.

[0029] Two sets of guide parts 612 are fixed with mounting blocks 613 on their opposite sides. The mounting blocks 613 are threaded to the outer wall of the cover 2 by mounting bolts 614. The top of the cover 2 is provided with multiple threaded holes. By rotating the mounting bolts 614, they can be screwed into or out of the threaded holes to achieve the effect of installing or removing the rotating plate 611, which makes it easy to adjust and fix the rotating plate 611.

[0030] Working principle: Outside air enters the inside of the cover 2 through the air inlet 413. Part of the air is guided by the two air guide plates 415 to the bearing hole 412 and enters the upper part of the cover 2. The other part of the air enters the ventilation slot 512 and is conducted to each ventilation slot 512 through the ventilation hole 513. By circulating the air inside the ventilation slot 512, the heat dissipation uniformity of the inner surface of the cover 2 is accelerated.

[0031] By pushing the rotating plate 611, the two guide parts 612 move along the outer wall of the cover 2. The mounting bolts 614 are rotated to install and position the rotating plate 611 with the cover 2, ensuring the stability of the rotating plate 611. External water vapor falling on the cover 2 will slide down the outer wall of the rotating plate 611 onto the guide parts 612, and then slide down to the rear end of the cover 2 through the guidance of the guide parts 612, achieving a comprehensive waterproof effect.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A washing machine motor end cover with a heat dissipation structure, comprising a motor end cover body (1), wherein the motor end cover body (1) includes a cover shell (2), a flange (3) fixed to the outer wall of the front end of the cover shell (2), and a plurality of mounting holes (311) disposed inside the flange (3), characterized in that: The cover (2) has a bearing mounting part (411) fixed in the middle part, and a bearing hole (412) is opened inside the bearing mounting part (411). The bottom end of the cover (2) has several sets of air inlets (413) that communicate with the inside of the cover (2). The side wall of the cover (2) has several sets of air outlets (414). The top of the cover (2) is equipped with a rotating plate (611), and both ends of the rotating plate (611) are fixed with guide parts (612). The guide parts (612) are inclined from front to back and to the left and right sides.

2. The washing machine motor end cover with a heat dissipation structure according to claim 1, characterized in that: The outer wall of the bearing mounting part (411) is fixed with several sets of strip-shaped reinforcing ribs (511), and the several sets of strip-shaped reinforcing ribs (511) are connected to the inner wall of the cover shell (2) in a circular distribution from front to back.

3. The washing machine motor end cover with a heat dissipation structure according to claim 2, characterized in that: Each pair of adjacent reinforcing ribs (511) and the outer wall of the cover (2) form a ventilation channel.

4. The washing machine motor end cover with a heat dissipation structure according to claim 3, characterized in that: Each of the strip-shaped reinforcing ribs (511) has a ventilation hole (513) that penetrates the strip-shaped reinforcing rib (511), and the ventilation hole (513) is connected to the ventilation groove (512).

5. The washing machine motor end cover with a heat dissipation structure according to claim 1, characterized in that: The inner wall of the cover (2) is fixed with two sets of air guide plates (415), and several sets of air inlets (413) are arranged on the opposite side of the two sets of air guide plates (415).

6. A washing machine motor end cover with a heat dissipation structure according to claim 5, characterized in that: The air guide plate (415) has an arc surface (416) at one end near the middle of the cover (2), and the arc surface (416) is located on the lower end face of the top of the air guide plate (415).

7. A washing machine motor end cover with a heat dissipation structure according to claim 2, characterized in that: A first annular reinforcing rib (514) is fixed between each two adjacent strip reinforcing ribs (511), and the first annular reinforcing rib (514) is located at one end of the strip reinforcing rib (511) near the bearing mounting part (411).

8. A washing machine motor end cover with a heat dissipation structure according to claim 7, characterized in that: A second annular reinforcing rib (515) is fixed between each two adjacent strip reinforcing ribs (511), and the second annular reinforcing rib (515) is located at the end of the strip reinforcing rib (511) away from the bearing mounting part (411).

9. A washing machine motor end cover with a heat dissipation structure according to claim 1, characterized in that: The top outer wall of the cover (2) is provided with a sliding groove, and the bottom end of the rotating plate (611) is fixed with a sliding block that cooperates with the sliding groove.

10. A washing machine motor end cover with a heat dissipation structure according to claim 9, characterized in that: Mounting blocks (613) are fixed to the opposite sides of the two sets of guide portions (612), and the mounting blocks (613) are threadedly connected to the outer wall of the cover (2) by mounting bolts (614).

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