Motor housing

Abstract

The utility model discloses a motor housing, which relates to the field of motors, and is characterized in that the motor housing comprises a main body housing, two ends of the main body housing are respectively provided with a front end cover and a rear end cover, the main body housing is fixedly connected with two supporting legs, and the peripheral wall of the main body housing is provided with upper heat radiation fins and lower heat radiation fins. A cavity is formed between the rear end cover and the outer peripheral wall of the main machine shell. Each lower heat dissipation fin comprises a main section located between the two supporting legs and an extending section located in the cavity. The density of the lower radiating fins at the position is increased to mainly improve the radiating effect of the position, the extension sections are arranged to increase the length of the whole radiating fins, and the distance between every two adjacent extension sections is large, so that heat which is not timely radiated on the main section can be conducted to the extension sections to be radiated, and the radiating effect of the lower radiating fins is improved. And the overall heat dissipation effect of the motor shell is ensured.

Description

Technical Field

[0001] This utility model relates to the field of motors, and more specifically, to a motor housing. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It generates force in an electromagnetic field through electric current, thereby driving rotation or other forms of motion.

[0003] The motor housing includes a main housing, a front cover, a rear cover, and support feet. The support feet are fixedly connected to the main housing, and there are generally two support feet on the main housing. The two support feet are connected to other platforms by bolts. The support feet are designed to ensure the overall stability of the motor. The front cover and rear cover are located at the two ends of the motor housing, respectively. In order to ensure the overall heat dissipation of the motor, several heat dissipation fins are fixedly connected to the outer peripheral wall of the main housing. The heat dissipation fins can improve the overall heat dissipation speed of the motor.

[0004] However, the heat dissipation fins are generally distributed in a uniform ring array on the outer peripheral wall of the motor housing. The heat dissipation fins located above the support feet have a better heat dissipation effect because there is a large space around the heat dissipation fins for heat dissipation. However, because the space between the two support feet is relatively narrow, and the support feet also affect the heat dissipation below the motor housing, the heat dissipation effect of the motor located between the two support feet is relatively poor.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a motor housing.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a motor housing, including a main housing, with a front end cover and a rear end cover respectively at both ends of the main housing, two support feet fixedly connected to the main housing, upper heat dissipation fins and lower heat dissipation fins provided on the outer peripheral wall of the main housing, the upper heat dissipation fins being located between the front end cover and the rear end cover, and a cavity being formed between the rear end cover and the outer peripheral wall of the main housing, the lower heat dissipation fins including a main section located between the two support feet and an extension section located in the cavity, the distance between two adjacent main sections being less than the distance between two adjacent upper heat dissipation fins, the distance between two adjacent extension sections being greater than the distance between two adjacent main sections, and a heat dissipation hole communicating with the cavity being opened on the outer peripheral wall of the rear end cover.

[0008] The present invention is further configured such that a through hole is provided on the side of the rear end cover facing away from the front end cover.

[0009] The present invention is further configured such that: the rear end cover includes a cast iron part and a copper part, the copper part is disposed above the extension section, and all the heat dissipation holes are disposed on the copper part.

[0010] The present invention is further configured such that the copper part and the cast iron part are detachable, and the cast iron part is fixedly connected to the main body housing by bolts.

[0011] The present invention is further configured such that: the copper part has a mounting hole, the cast iron part has a threaded hole, and the copper part and the cast iron part are connected together by a screw located in the mounting hole.

[0012] The present invention is further configured such that an inclined section located outside the cavity is provided between the main section and the extension section.

[0013] In summary, this utility model has the following beneficial effects:

[0014] By increasing the density of the lower heat sink fins at this location, the heat dissipation effect in this area is significantly improved. The length of the entire heat sink fin is increased by adding extension sections, and the distance between adjacent extension sections is relatively large. This allows heat that cannot be dissipated quickly enough on the main section to be conducted to the extension sections for dissipation. The extension sections are located in the cavity between the rear end cover and the main casing. The high density of the heat dissipation holes on the rear end cover allows external air to directly enter the cavity through these holes, thus dissipating heat from the extension sections. The addition of extension sections increases the overall heat dissipation area of ​​the lower heat sink fins, thereby ensuring heat dissipation in this area. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0017] In the diagram: 1. Main casing; 2. Front cover; 3. Rear cover; 4. Support feet; 5. Upper heat dissipation fins; 6. Main section; 7. Extension section; 8. Heat dissipation holes; 9. Through holes; 10. Cast iron section; 11. Copper section; 12. Inclined section. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] A type of motor housing, such as Figure 1 and Figure 2As shown, the device includes a main housing 1, with a front cover 2 and a rear cover 3 at both ends. Two support feet 4 are fixedly connected to the main housing 1. The outer peripheral wall of the main housing 1 is provided with upper heat dissipation fins 5 and lower heat dissipation fins. The upper heat dissipation fins 5 are located between the front cover 2 and the rear cover 3. The motor shaft of the motor is exposed at the center of the front cover 2. The support feet 4 are provided with fixing holes. The stability of the motor can be ensured by setting the support feet 4. The upper heat dissipation fins 5 are located on the outer peripheral wall of the main housing 1. There is a large heat dissipation space around the upper heat dissipation fins 5, which can ensure the heat dissipation speed of the outer peripheral wall of the motor.

[0020] like Figure 1 and Figure 2 As shown, a cavity is formed between the rear end cover 3 and the outer peripheral wall of the main body housing 1. The lower heat dissipation fins include a main section 6 located between the two support legs 4 and an extension section 7 located within the cavity. The distance between two adjacent main sections 6 is less than the distance between two adjacent upper heat dissipation fins 5, and the distance between two adjacent extension sections 7 is greater than the distance between two adjacent main sections 6. A heat dissipation hole 8 communicating with the cavity is provided on the outer peripheral wall of the rear end cover 3. The space between the two support legs 4 is located between the motor and the platform. By increasing the density of the lower heat dissipation fins at this location, the heat dissipation effect at this location is significantly improved. The length of the entire heat dissipation fin is increased by setting extension section 7, and the distance between two adjacent extension sections 7 is relatively large, so that the heat that cannot be dissipated in the main section 6 can be conducted to the extension section 7 for dissipation. The extension section 7 is located in the cavity between the rear end cover 3 and the main body housing 1. The heat dissipation holes 8 are densely distributed on the rear end cover 3, so that external air can directly enter the cavity through the heat dissipation holes 8 on the rear end cover 3, thereby dissipating the heat on the extension section 7. By setting extension section 7, the overall heat dissipation area of ​​the lower heat dissipation fin can be increased, thereby ensuring the heat dissipation of this part.

[0021] like Figure 1 and Figure 2As shown, a through hole 9 is also provided on the side of the rear end cover 3 facing away from the front end cover 2. The through hole 9 is also connected to the cavity. The position of the through hole 9 is different from the position of the heat dissipation holes 8, so that the extension section 7 can also dissipate heat through the through hole 9, further increasing the heat dissipation speed of the motor housing. The rear end cover 3 includes a cast iron part 10 and a copper part 11. The copper part 11 is located above the extension section 7, and all the heat dissipation holes 8 are located on the copper part 11. The cast iron part 10 is made of cast iron, which has the characteristics of high strength, thus ensuring the overall strength of the rear end cover 3. The copper part 11 is located on the outer peripheral wall of the rear end cover 3. The copper part 11 has a better heat dissipation effect than the cast iron part 10. The copper part 11 covers the extension sections 7, so that the heat of the extension section 7 can be directly dissipated through the copper part 11. The copper part 11 and the cast iron part 10 are detachable. The main section 6 is fixedly connected to the main housing 1 by bolts. The copper part 11 is plate-shaped. People can remove the copper part 11 to remove the dust on the extension section 7, reducing the impact of dust on the heat dissipation of the extension section 7. The copper part 11 has a mounting hole, and the cast iron part 10 has a threaded hole. The copper part 11 and the cast iron part 10 are connected together by screws located in the mounting holes. The connection by screws ensures the connection strength between the copper part 11 and the cast iron part 10, and also facilitates the disassembly of the copper part 11. An inclined section 12 located outside the cavity is also provided between the main section 6 and the extension section 7. The inclined section 12 is the intermediate connection between the main section 6 and the extension section 7. The inclination of the inclined section 12 makes the distance between adjacent extension sections 7 greater than the distance between adjacent main sections 6. At the same time, the inclined section 12 can also serve as a heat conduction medium between the main section 6 and the extension section 7.

[0022] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A motor housing, comprising a main housing (1), wherein a front end cover (2) and a rear end cover (3) are respectively provided at both ends of the main housing (1), and two support feet (4) are fixedly connected to the main housing (1), characterized in that: The outer peripheral wall of the main body housing (1) is provided with upper heat dissipation fins (5) and lower heat dissipation fins. The upper heat dissipation fins (5) are located between the front end cover (2) and the rear end cover (3). The rear end cover (3) forms a cavity with the outer peripheral wall of the main body housing (1). The lower heat dissipation fins include a main section (6) located between two support legs (4) and an extension section (7) located in the cavity. The distance between two adjacent main sections (6) is smaller than the distance between two adjacent upper heat dissipation fins (5). The distance between two adjacent extension sections (7) is greater than the distance between two adjacent main sections (6). The outer peripheral wall of the rear end cover (3) is provided with heat dissipation holes (8) that communicate with the cavity.

2. The motor housing according to claim 1, characterized in that: The rear end cover (3) also has a through hole (9) on the side opposite to the front end cover (2).

3. The motor housing according to claim 1, characterized in that: The rear end cover (3) includes a cast iron part (10) and a copper part (11), the copper part (11) being disposed above the extension section (7), and all the heat dissipation holes (8) being disposed on the copper part (11).

4. The motor housing according to claim 3, characterized in that: The copper part (11) and the cast iron part (10) are detachable, and the cast iron part (10) is fixedly connected to the main body housing (1) by bolts.

5. A motor housing according to claim 4, characterized in that: The copper part (11) has a mounting hole, and the cast iron part (10) has a threaded hole. The copper part (11) and the cast iron part (10) are connected together by a screw located in the mounting hole.

6. The motor housing according to claim 1, characterized in that: An inclined section (12) located outside the cavity is also provided between the main section (6) and the extension section (7).

Images