Novel motor rear cover with good waterproof performance

Abstract

The utility model discloses a novel motor rear cover with good waterproof performance, which comprises a rear cover main body and a motor shell positioned on one side of the rear cover main body, a through hole is formed in the rear cover main body, a rotor rotating shaft is arranged in the motor shell, the end part of the rotor rotating shaft penetrates through the interior of the through hole, and the rotor rotating shaft is arranged in the through hole. Fan blades are fixedly arranged outside the rotor rotating shaft, and an auxiliary heat dissipation mechanism is arranged on the rear cover body. According to the utility model, through the designed auxiliary heat dissipation mechanism, when heat in the motor housing is conducted out through the rear cover main body, the heat is absorbed through the left heat absorption sheet and the left conduction ring, and then the heat is transmitted to the external right heat dissipation ring and the right heat dissipation sheet through the plurality of groups of heat pipe bodies for auxiliary heat dissipation; the heat dissipation effect of the rear cover body is improved, and the use performance of the rear cover body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor rear covers, and particularly relates to a new type of motor rear cover with good waterproof performance. Background Technique

[0002] A motor refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. A motor generally includes a housing and a rotor installed inside the motor housing. A motor rear cover is installed at the rear end of the housing. A through hole for inserting the rotor shaft is provided in the middle of the rear cover. The rear cover and the motor housing are fixed together by multiple groups of bolts.

[0003] The motor rear cover is disclosed in Chinese Patent Application No. 201220113256.X. This patent solves the problems that the rear cover and the bearing sleeve provided in the through hole are integrally stretched and are of an integral structure. This kind of structure is not only inconvenient for maintenance, but also not easy to process and has a high manufacturing cost. However, during the use of the motor, part of the heat generated inside the motor housing on the left side is absorbed by the motor rear cover and conducted to the right side of the motor rear cover. Then, a fan blade is installed on the right side of the motor rear cover, and the rotation of the rotor shaft drives the fan blade to rotate to discharge the heat on the motor rear cover. However, relying solely on the conduction of the motor rear cover to conduct the heat inside the motor housing to the right side of the motor rear cover for heat dissipation has poor heat dissipation effect and affects the use performance of the motor rear cover. For this reason, we propose a new type of motor rear cover with good waterproof performance. Content of the Utility Model

[0004] The purpose of the utility model is to provide a new type of motor rear cover with good waterproof performance to solve the problem that relying solely on the conduction of the motor rear cover to conduct the heat inside the motor housing to the right side of the motor rear cover for heat dissipation has poor heat dissipation effect and affects the use performance of the motor rear cover as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A new type of motor rear cover with good waterproof performance, including a rear cover main body and a motor housing located on one side of the rear cover main body. A through hole is provided inside the rear cover main body. A rotor shaft is provided inside the motor housing, and the end of the rotor shaft passes through the inside of the through hole. A fan blade is fixedly provided on the outside of the rotor shaft. An auxiliary heat dissipation mechanism is provided on the rear cover main body. The auxiliary heat dissipation mechanism includes a left conduction ring and a right heat dissipation ring. Multiple groups of left heat absorption sheets are fixedly provided on one side of the left conduction ring. Multiple groups of right heat dissipation sheets are fixedly provided on one side of the right heat dissipation ring. Multiple groups of heat pipe bodies are fixedly provided between the left conduction ring and the right heat dissipation ring.

[0006] Preferably, a plurality of fixing rings are uniformly arranged inside the rear cover body along the circumferential direction of the rear cover body. The end of the heat pipe body passes through the inside of the fixing ring, and the outer wall of the heat pipe body is fixedly connected to the inner wall of the fixing ring.

[0007] Preferably, a plurality of connecting plates are fixedly arranged on the other side of the left conduction ring, and the ends of the connecting plates are fixedly connected to the rear cover body.

[0008] Preferably, a plurality of connecting blocks are fixedly arranged on the other side of the right heat dissipation ring, and the connecting blocks are fixedly connected to the rear cover body.

[0009] Preferably, a sealing ring is arranged between the rear cover body and the motor housing. Three through grooves are formed inside the sealing ring. A mechanical seal is fixedly arranged on the inner wall of the through hole. The end of the rotor shaft passes through the inside of the mechanical seal.

[0010] Preferably, three convex plates are fixedly arranged on the outer wall of the rear cover body. Three bolts are arranged on the convex plates, and the working ends of the bolts pass through the inside of the through grooves and extend into the inside of the motor housing.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] (1) Through the designed auxiliary heat dissipation mechanism of the present utility model, during use, while the heat in the motor housing is conducted out through the rear cover body, the heat is absorbed by the left heat absorption sheet and the left conduction ring, and then transferred to the external right heat dissipation ring and right heat dissipation fins through a plurality of heat pipe bodies for auxiliary heat dissipation, increasing the heat dissipation effect of the rear cover body and improving the service performance of the rear cover body.

[0013] (2) Through the combination of the designed sealing ring, through grooves and mechanical seal of the present utility model, during use, the sealing performance between the rear cover body and the electrode housing and the sealing performance between the rotor shaft and the rear cover body can be increased, thereby increasing its waterproof performance. The waterproof performance is good, avoiding external water from entering the inside of the motor through the gaps between the rear cover body and the electrode housing and between the rotor shaft and the rear cover body during use, and improving the use effect. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a left view structural diagram of the rear cover body of the present utility model;

[0016] Figure 3 is a right view structural diagram of the left heat absorption sheet and the left conduction ring of the present utility model;

[0017] Figure 4 Schematic left view structure of the right heat dissipation ring of the present utility model;

[0018] Figure 5 Schematic left view structure of the sealing ring of the present utility model;

[0019] Figure 6 Schematic left view structure of the main body of the rear cover of the present utility model;

[0020] In the figure: 100, motor housing; 101, convex plate; 102, main body of the rear cover; 103, rotor rotating shaft; 104, fan blade; 105, through hole; 200, sealing ring; 201, mechanical seal; 202, through groove; 300, right heat sink; 301, left heat absorption fin; 302, left conduction ring; 303, heat pipe body; 304, fixing ring; 305, connecting plate; 306, connecting block; 307, right heat dissipation ring. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the present utility model provides a technical solution: a new type of motor rear cover with good waterproof performance, including a main body of the rear cover 102 and a motor housing 100 located on one side of the main body of the rear cover 102. A through hole 105 is opened inside the main body of the rear cover 102. A rotor rotating shaft 103 is arranged inside the motor housing 100, and the end of the rotor rotating shaft 103 passes through the inside of the through hole 105. A fan blade 104 is fixedly arranged outside the rotor rotating shaft 103. The heat can be quickly dissipated by the rotation of the fan blade 104. An auxiliary heat dissipation mechanism is arranged on the main body of the rear cover 102. The auxiliary heat dissipation mechanism includes a left conduction ring 302 and a right heat dissipation ring 307. A plurality of groups of left heat absorption fins 301 are fixedly arranged on one side of the left conduction ring 302. The left heat absorption fins 301 can absorb the heat inside the motor housing 100. A plurality of groups of right heat sinks 300 are fixedly arranged on one side of the right heat dissipation ring 307. A plurality of groups of heat pipe bodies 303 are fixedly arranged between the left conduction ring and the right heat dissipation ring 307. The heat pipe body 303 has good heat transfer effect;

[0024] Inside the rear cover body 102 and along the circumferential direction of the rear cover body 102, multiple groups of fixing rings 304 are evenly arranged. Through the fixing rings 304, the heat pipe body 303 can be fixed. The end of the heat pipe body 303 passes through the inside of the fixing ring 304, and the outer wall of the heat pipe body 303 is fixedly connected to the inner wall of the fixing ring 304;

[0025] On the other side of the left conduction ring 302, multiple groups of connecting plates 305 are fixedly arranged, and the ends of the connecting plates 305 are fixedly connected to the rear cover body 102;

[0026] On the other side of the right heat dissipation ring 307, multiple groups of connecting blocks 306 are fixedly arranged, and the connecting blocks 306 are fixedly connected to the rear cover body 102.

[0027] In the utility model, through the designed auxiliary heat dissipation mechanism, during use, while the heat in the motor housing 100 is conducted out through the rear cover body 102, the heat is absorbed through the left heat absorption sheet 301 and the left conduction ring 302, and then the heat is transferred to the external right heat dissipation ring 307 and the right heat dissipation fins 300 through multiple groups of heat pipe bodies 303 for auxiliary heat dissipation, increasing the heat dissipation effect of the rear cover body 102 and improving the service performance of the rear cover body 102.

[0028] Embodiment 2

[0029] On the basis of Embodiment 1, please refer to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6 Between the rear cover body 102 and the motor housing 100, a sealing ring 200 is provided. Through the sealing ring 200, the sealing performance and waterproof performance between the rear cover body 102 and the motor housing 100 can be increased. Three through grooves 202 are opened inside the sealing ring 200. A mechanical seal 201 is fixedly arranged on the inner wall of the through hole 105. The end of the rotor shaft 103 passes through the inside of the mechanical seal 201. Through the mechanical seal 201, the sealing performance and waterproof performance between the rotor shaft 103 and the rear cover body 102 can be increased;

[0030] Three convex plates 101 are fixedly arranged on the outer wall of the rear cover body 102. Three bolts are arranged on the convex plates 101. Through the bolts, the rear cover body 102 and the motor housing 100 can be fixed together, and the working ends of the bolts pass through the inside of the through grooves 202 and extend into the inside of the motor housing 100.

[0031] The utility model combines the designed sealing ring 200, through groove 202 and mechanical seal 201, which can increase the sealing performance between the rear cover body 102 and the motor housing 100 and between the rotor shaft 103 and the rear cover body 102 during use, thereby enhancing its waterproof performance. With good waterproof performance, it can prevent external water from entering the interior of the motor through the gaps between the rear cover body 102 and the motor housing 100 and between the rotor shaft 103 and the rear cover body 102, improving the usage effect.

[0032] The working principle and usage process of the utility model are as follows:

[0033] When the utility model is in use, the rear cover body 102 is installed on the motor housing 100. When a lot of heat is generated inside the motor housing 100 during the operation of the motor, part of the heat will be conducted by the rear cover body 102 to the right and dissipated. Then, the rotating fan blade 104 discharges the heat. At the same time, part of the heat inside the motor housing 100 is absorbed by the left heat absorption sheet 301 and transferred to the left conduction ring 302. The heat on the left conduction ring 302 is transferred to the right heat dissipation ring 307 through multiple heat pipe bodies 303. The right heat dissipation ring 307 transfers part of the heat to the right heat dissipation fin 300, and then the heat is dissipated into the surrounding air through the right heat dissipation ring 307 and the right heat dissipation fin 300, further enhancing the heat dissipation effect.

[0034] After the rear cover body 102 is installed on the motor housing 100 during use, the sealing ring 200 is installed between the rear cover body 102 and the motor housing 100 to increase the sealing and waterproof performance between them. The mechanical seal 201 is installed between the rotor shaft 103 and the rear cover body 102, which can increase the sealing and waterproof performance between the rotor shaft 103 and the rear cover body 102, preventing external water from entering the interior of the motor through the gaps between the rear cover body 102 and the motor housing 100 and between the rotor shaft 103 and the rear cover body 102.

[0035] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of motor rear cover with good waterproof performance, comprising a rear cover main body (102) and a motor housing (100) located on one side of the rear cover main body (102). A through hole (105) is formed inside the rear cover main body (102). A rotor shaft (103) is arranged inside the motor housing (100), and the end of the rotor shaft (103) passes through the inside of the through hole (105). A fan blade (104) is fixedly arranged on the outside of the rotor shaft (103), and it is characterized in that: An auxiliary heat dissipation mechanism is provided on the rear cover body (102). The auxiliary heat dissipation mechanism includes a left conduction ring (302) and a right heat dissipation ring (307). A plurality of left heat absorption fins (301) are fixedly arranged on one side of the left conduction ring (302), and a plurality of right heat dissipation fins (300) are fixedly arranged on one side of the right heat dissipation ring (307). A plurality of heat pipe bodies (303) are fixedly arranged between the left conduction ring (302) and the right heat dissipation ring (307).

2. The novel motor rear cover with good waterproof performance according to claim 1, characterized in that: A plurality of fixed rings (304) are uniformly arranged inside the rear cover body (102) along the circumferential direction of the rear cover body (102). The end of the heat pipe body (303) passes through the inside of the fixed ring (304), and the outer wall of the heat pipe body (303) is fixedly connected to the inner wall of the fixed ring (304).

3. The novel motor rear cover with good waterproof performance according to claim 2 is characterized in that: A plurality of connecting plates (305) are fixedly arranged on the other side of the left conduction ring (302), and the end of the connecting plate (305) is fixedly connected to the rear cover body (102).

4. The novel motor rear cover with good waterproof performance according to claim 3, characterized in that: A plurality of connecting blocks (306) are fixedly arranged on the other side of the right heat dissipation ring (307), and the connecting block (306) is fixedly connected to the rear cover body (102).

5. The novel motor rear cover with good waterproof performance according to claim 4, characterized in that: A sealing ring (200) is arranged between the rear cover body (102) and the motor housing (100). Three through grooves (202) are formed inside the sealing ring (200). A mechanical seal (201) is fixedly arranged on the inner wall of the through hole (105), and the end of the rotor shaft (103) passes through the inside of the mechanical seal (201).

6. The novel motor rear cover with good waterproof performance according to claim 5, characterized in that: Three convex plates (101) are fixedly arranged on the outer wall of the rear cover body (102). Three bolts are arranged on the convex plate (101), and the working end of the bolt passes through the inside of the through groove (202) and extends into the inside of the motor housing (100).

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