High-strength mute rear cover

Abstract

The utility model provides a high-strength mute rear cover, which is used for protecting a motor and comprises an integrally-formed disc-shaped rear cover, the bottom of the integrally-formed disc-shaped rear cover is flat, two cavities are arranged inside and outside the integrally-formed disc-shaped rear cover, and the inner cavity is in a step shape with a low inside and a high outside; six fan-shaped grooves are uniformly formed in the bottom of the outer cavity, and six first grooves are uniformly formed in the inner wall of the outer cavity; six reinforcing ribs are arranged on the outer side of the rear cover; the edge of the rear cover is provided with an anti-skid sound insulation gasket with the same shape; and the surface of the rear cover is coated with a layer of sound-absorbing coating. According to the utility model, through the design of the grooves at the bottom of the outer cavity and on the inner wall of the outer cavity, heat generated during operation of the motor can be dissipated, so that vibration and noise caused by over-high temperature are reduced, and furthermore, the sound absorption performance of the motor can be improved through the sound absorption coating on the surface of the rear cover; meanwhile, the reinforcing ribs on the outer side can enhance the supporting performance of the rear cover and prevent the motor from being damaged.

Description

Technical Field

[0001] The utility model relates to the field of metal material processing, in particular to a high-strength silent back cover. Background Art

[0002] Motors are devices that convert electrical energy into mechanical energy and are widely used in various fields, including industry, agriculture, transportation, and household appliances. During operation, dust, moisture, and other contaminants can enter the motor. Long-term contamination can degrade motor performance. Motor covers effectively prevent these contaminants from entering, thereby protecting the motor's key components. However, some motor covers are not strong enough to properly support the motor. Furthermore, the heat generated during operation can cause noise, which can affect the working environment. Summary of the Invention

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a high-strength silent back cover.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a high-strength silent back cover, including a back cover, which is an integrally formed disc with a flat bottom and is provided with an inner and outer cavities, the inner cavity being in the shape of a step with the inner side lower and the outer side higher; at least one fan-shaped groove is provided at the bottom of the outer cavity; at least one first groove is provided on the inner wall of the outer cavity of the back cover; and at least one reinforcing rib is provided on the outer side of the back cover.

[0005] Preferably, six fan-shaped grooves are evenly provided on the bottom of the outer cavity; six first grooves are evenly provided on the inner wall of the outer cavity of the rear cover; and six reinforcing ribs are evenly provided on the outer side of the rear cover.

[0006] Preferably, the first groove corresponds to the position of the reinforcing rib.

[0007] Preferably, three limiting holes are evenly arranged on the raised portion at the bottom of the outer cavity.

[0008] Preferably, four first fixing holes are evenly arranged on the edge of the back cover, protruding from the outside of the edge and formed integrally with the back cover.

[0009] Preferably, the edge of the rear cover is provided with a sealing gasket of the same shape and made of rubber.

[0010] Preferably, second fixing holes are respectively provided on the sides of the four first fixing holes on the edge of the rear cover.

[0011] Preferably, the surface of the rear cover is coated with sound-absorbing paint.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The present invention utilizes grooves on the bottom and inner wall of the outer cavity. This design, on the one hand, increases the area of ​​the outer cavity wall, increasing the heat dissipation surface area and allowing the heat generated by the motor to be dissipated during operation. On the other hand, the thickness of the outer cavity wall is reduced at the grooves, reducing the resistance to heat conduction and allowing heat to be transferred more easily from one side of the outer cavity wall to the other, thereby achieving a better cooling effect. Thirdly, because of the grooves, when sound waves generated by the motor pass through the grooves, the air within the grooves compresses and expands, a process that consumes the sound energy and reduces noise. When sound waves encounter the grooves, they are reflected and refracted, causing the sound energy to gradually attenuate during propagation. Furthermore, the presence of the grooves increases the resistance to sound waves propagating along the inner wall. Sound must overcome more obstacles when passing through the grooves, resulting in some sound energy being dissipated during propagation. Furthermore, the sound-absorbing coating on the rear cover improves its sound absorption performance, while the outer reinforcement ribs strengthen the rear cover's support and prevent damage to the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a top view of the first embodiment of the present utility model.

[0016] Figure 3 This is a bottom view of the first embodiment of the present invention.

[0017] Explanation of reference numerals: 100—back cover; 200—sealing gasket; 300—first groove; 400—sector-shaped groove; 500—limiting hole; 600—first fixing hole; 700—reinforcing rib; 800—second fixing hole. DETAILED DESCRIPTION

[0018] In order to enable people skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the present application will be clearly and completely described below in conjunction with the drawings in the embodiment of the present application, as follows.

[0019] Please refer to Figure 1 、 Figure 2 as well as Figure 3 The utility model provides a high-strength silent back cover, including a back cover 100. The back cover 100 is an integrally formed disc with a flat bottom and is provided with an inner and outer cavity. The inner cavity is in a stepped shape with the inner cavity being lower and the outer cavity being higher. At least one fan-shaped groove 400 is provided at the bottom of the outer cavity. At least one first groove 300 is provided on the inner wall of the outer cavity of the back cover 100. At least one reinforcing rib 700 is provided on the outer side of the back cover 100.

[0020] Better, such as Figure 1、 Figure 2 As shown, six fan-shaped grooves 400 are evenly distributed on the bottom of the outer cavity; six first grooves 300 are evenly distributed on the inner wall of the outer cavity of the rear cover 100; and six reinforcing ribs 700 are evenly distributed on the outer side of the rear cover 100. The reinforcing ribs improve the stability of the cover and enhance its load-bearing and compressive resistance. When the motor is operating, it generates heat, which may cause internal components to expand, resulting in smaller gaps between components, increased friction and vibration, and thus greater noise. The grooves dissipate the heat generated by the motor during operation, thereby reducing the vibration and noise caused by excessive temperature.

[0021] Better, such as Figure 1 As shown, the first groove 300 corresponds to the position of the reinforcing rib 700, thereby compensating for the insufficient supporting strength of the inner wall of the outer cavity of the back cover 100 due to the absence of the first groove 300.

[0022] Better, such as Figure 1 As shown, the raised portion at the bottom of the outer cavity is evenly provided with three limiting holes 500, thereby ensuring the accuracy of the brake installation and preventing it from being misplaced.

[0023] Better, such as Figure 1 、 Figure 2 As shown, the back cover 100 has four first fixing holes 600 evenly arranged along its edge, protruding from the outside of the edge and integrally formed with the back cover 100. The first fixing holes 600 ensure precise mounting of the back cover 100 to the motor base, while the integral molding reduces the material, labor, and assembly costs of the back cover 100.

[0024] Better, such as Figure 1 、 Figure 2 As shown, the edge of the rear cover 100 is provided with a sealing gasket 200 of the same shape, which is made of rubber. Rubber has good anti-slip properties, which can make the connection between the rear cover 100 and the motor tighter, prevent loosening, and reduce vibration and noise caused by poor connection.

[0025] Better, such as Figure 1 As shown, the sides of the four first fixing holes 600 on the edge of the rear cover 100 are respectively provided with second fixing holes 800 for connecting the motor fan cover.

[0026] Preferably, the surface of the rear cover 100 is coated with a sound-absorbing coating, which can further absorb the noise generated when the motor is running.

[0027] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A high-strength silent back cover, comprising a back cover (100), wherein the back cover (100) is in the shape of an integrally formed disc, has a flat bottom, is provided with an inner and an outer cavity, and the inner cavity is in the shape of a step with the inner cavity being lower and the outer cavity being higher, and is characterized in that; At least one fan-shaped groove (400) is provided at the bottom of the outer cavity; at least one first groove (300) is provided on the inner wall of the outer cavity of the rear cover (100); and at least one reinforcing rib (700) is provided on the outer side of the rear cover (100).

2. The high-strength silent back cover according to claim 1, characterized in that: The bottom of the outer cavity is evenly provided with six fan-shaped grooves (400); the inner wall of the outer cavity of the rear cover (100) is evenly provided with six first grooves (300); and the outer side of the rear cover (100) is evenly provided with six reinforcing ribs (700).

3. The high-strength silent back cover according to claim 1, characterized in that: The first groove (300) corresponds to the position of the reinforcing rib (700).

4. The high-strength silent back cover according to claim 1, characterized in that: The raised portion at the bottom of the outer cavity is evenly provided with three limiting holes (500).

5. The high-strength silent back cover according to claim 1, characterized in that: There is at least one of the fan-shaped groove (400), the first groove (300) and the reinforcing rib (700).

6. The high-strength silent back cover according to claim 1, characterized in that: Four first fixing holes (600) are evenly arranged on the edge of the back cover (100), protruding from the outside of the edge and integrally formed with the back cover (100).

7. The high-strength silent back cover according to claim 1, characterized in that: The edge of the rear cover (100) is provided with a sealing gasket (200) of the same shape and made of rubber.

8. The high-strength silent back cover according to claim 1, characterized in that: Second fixing holes (800) are respectively provided on the sides of the four first fixing holes (600) on the edge of the back cover (100).

9. The high-strength silent back cover according to claim 1, characterized in that: The surface of the rear cover (100) is coated with sound-absorbing paint.

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