Explosion-proof three-phase asynchronous motor

Abstract

The utility model provides an explosion-proof three-phase asynchronous motor, which comprises a motor shell, a plurality of heat dissipation assemblies are arranged on the outer side of the motor shell, the plurality of heat dissipation assemblies are sequentially distributed along the circumferential direction of the motor shell, each heat dissipation assembly comprises a plurality of heat dissipation fins arranged in parallel, a heat dissipation cavity is formed between every two adjacent heat dissipation fins, and the heat dissipation fins are arranged in the heat dissipation cavities. The heat dissipation assembly further comprises a cooling water pipe, and the cooling water pipe penetrates through all the heat dissipation cavities in the heat dissipation assembly. When the motor is used, the heat dissipation fins can conduct part of heat generated when the motor is used to the air so as to dissipate heat of the motor. Meanwhile, cooling water is injected into the cooling water pipe through the water pump, and the cooling water is driven to be discharged from the end, away from the water pump, of the cooling water pipe. In the process, part of heat generated by the motor is conducted to the cooling water and leaves the motor along with the cooling water, so that the purpose of further cooling the motor is achieved. And active heat dissipation is added to the motor, so that the motor has the advantage of relatively high heat dissipation efficiency.

Description

Technical Field

[0001] The utility model relates to a three-phase asynchronous motor, in particular to an explosion-proof three-phase asynchronous motor. Background Art

[0002] At present, a Chinese patent with announcement number CN212137423U discloses an explosion-proof three-phase asynchronous motor, including a casing, a front cover is fixedly installed at the front end of the casing, and a rear cover is fixedly installed at the rear end of the casing. A junction box is fixedly connected to the side of the casing close to the rear cover, and the operation of the motor can be controlled by the junction box. A second mounting block is fixedly installed on the side of the casing close to the junction box, a base is fixedly installed on the bottom of the casing, and a first mounting block is fixedly installed on the side of the casing close to the base, and the second mounting block cooperates with the first mounting block to fix the motor to a specified position. Mounting holes are provided on both the second mounting block and the first mounting block to facilitate installation. A number of heat dissipation fins are arranged on the outer wall of the casing to increase the contact area between the above-mentioned motor and the air, thereby achieving the purpose of heat dissipation. However, the above-mentioned heat dissipation method is passive heat dissipation, and there is a problem of low heat dissipation efficiency. Summary of the invention

[0003] In view of this, the purpose of the utility model is to provide an explosion-proof three-phase asynchronous motor, which has the advantage of high heat dissipation efficiency.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an explosion-proof three-phase asynchronous motor, comprising a motor housing, a front cover arranged at the front of the motor housing, and a rear cover arranged at the rear of the motor housing, a plurality of heat dissipation components are arranged on the outside of the motor housing, and the plurality of heat dissipation components are distributed sequentially along the circumference of the motor housing, the heat dissipation component comprises a plurality of heat dissipation fins arranged in parallel, a heat dissipation cavity is formed between two adjacent heat dissipation fins, the heat dissipation component also comprises a cooling water pipe, and the cooling water pipe passes through all the heat dissipation cavities in the heat dissipation component.

[0005] Through the above technical solution, when in use, the heat dissipation fins can transfer part of the heat generated by the motor during use to the air to dissipate the heat of the motor. At the same time, cooling water is injected into the cooling water pipe through a water pump, and the cooling water is driven to be discharged from the end of the cooling water pipe away from the water pump. In this process, part of the heat generated by the motor will be transferred to the cooling water and leave the motor with the cooling water to achieve the purpose of further cooling the motor. Adding active heat dissipation to the motor gives the motor the advantage of higher heat dissipation efficiency.

[0006] Preferably, a connecting pipe is provided between two adjacent heat dissipation components, and two ends of the connecting pipe are respectively connected to the cooling water pipes on both sides.

[0007] Through the above technical solution, the cooling water pipes in two adjacent heat dissipation components are connected through a connecting pipe, so that only one water pump is needed during the use of the motor, which is more convenient to use.

[0008] Preferably, a connecting buckle is provided at the side wall of the heat dissipating fin, and the connecting buckle is clamped on the outer side of the cooling water pipe.

[0009] Through the above technical solution, the connecting buckle is clamped on the outside of the cooling water pipe to improve the connection stability between the heat dissipating fins and the cooling water pipe.

[0010] Preferably, the connecting buckle includes an integrally formed snap-fit ​​section and a threaded connection section, the snap-fit ​​section is in a circular ring shape, and a snap-fit ​​opening is provided on the side of the snap-fit ​​section away from the threaded connection section, the width of the snap-fit ​​opening is smaller than the outer diameter of the cooling water pipe, and the threaded connection section is fixedly connected to the heat dissipating fin.

[0011] Through the above technical solution, the clamping section is connected to the heat dissipating fins through the threaded connection section, which has the advantages of convenient disassembly and assembly and relatively stable connection.

[0012] Preferably, a mounting opening is provided at the top of the heat dissipating fin, and the mounting opening penetrates the heat dissipating fin along the thickness direction of the heat dissipating fin. The threaded connection section passes through the mounting opening, and two positioning nuts are threadedly connected to the threaded connection section, and the two positioning nuts are respectively tightly pressed against two sides of the heat dissipating fin.

[0013] Through the above technical solution, two positioning nuts are used to fix the threaded connection section and the heat sink, making the threaded connection section more convenient to disassemble and assemble. Moreover, the connection buckle arranged in this way can adjust the position of the clamping section according to the position of the cooling water pipe, which has the advantage of good applicability.

[0014] Preferably, the cooling water pipe comprises a cooling main pipe arranged in the heat dissipation cavity and a cooling branch pipe connecting two adjacent cooling main pipes, and the cooling branch pipe is in an arc shape.

[0015] Through the above technical solution, the cooling branch pipe is in an arc shape, which can guide the cooling water to flow more smoothly and reduce the obstruction to the flow of cooling water.

[0016] Preferably, a receiving opening is provided at the end of the heat dissipation fin, and the cooling branch pipe passes through the receiving opening.

[0017] Through the above technical solution, the cooling branch pipe is stored in the storage opening and is not easily damaged by contact with external objects.

[0018] Preferably, a supporting rubber is bonded and fixed to the inner wall of the receiving opening, and the supporting rubber is tightly pressed against the cooling branch pipe.

[0019] Through the above technical solution, the supporting rubber is tightly pressed against the cooling branch pipe to support and limit the cooling branch pipe, so that the cooling branch pipe is not prone to shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment;

[0021] Figure 2 for Figure 1 Enlarged view of part A.

[0022] Figure numerals: 1. Motor housing; 2. Front cover; 3. Rear cover; 4. Heat dissipation assembly; 41. Heat dissipation fins; 42. Cooling water pipe; 421. Cooling main pipe; 422. Cooling branch pipe; 5. Heat dissipation cavity; 6. Connecting pipe; 7. Connecting buckle; 71. Snap-on section; 72. Threaded connection section; 8. Snap-on opening; 9. Installation opening; 10. Positioning nut; 11. Storage opening; 12. Support rubber. Implementation

[0023] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0024] An explosion-proof three-phase asynchronous motor, such as Figure 1 , Figure 2 As shown, the motor housing 1 includes a front cover 2 arranged at the front of the motor housing 1, and a rear cover 3 arranged at the rear of the motor housing 1. The motor stator is fixedly connected to the inner wall of the motor housing 1, and the motor rotor is rotatably connected to the center of the motor housing 1, and the motor rotor passes through the center of the front cover 2.

[0025] A plurality of heat dissipation components 4 are arranged on the outside of the motor housing 1 and are sequentially distributed along the circumference of the motor housing 1. The heat dissipation components 4 are used to dissipate the heat generated when the motor is working, so that the motor is not easily damaged due to overheating.

[0026] The heat dissipation assembly 4 includes heat dissipation fins 41 and cooling water pipes 42. In this embodiment, there are a plurality of heat dissipation fins 41 and they are parallel to each other. The spacing between two adjacent heat dissipation fins 41 in the same heat dissipation assembly 4 is the same, and a heat dissipation cavity 5 is formed between two adjacent heat dissipation fins 41. The cooling water pipe 42 passes through all the heat dissipation cavities 5 in the heat dissipation assembly 4. The cooling water pipe 42 includes a cooling main pipe 421 arranged in the heat dissipation cavity 5, and a cooling branch pipe 422 connecting two adjacent cooling main pipes 421, and the cooling branch pipe 422 is in an arc shape.

[0027] A connecting pipe 6 is provided between two adjacent heat dissipation components 4 , and two ends of the connecting pipe 6 are respectively connected to the cooling water pipes 42 on both sides.

[0028] A connecting buckle 7 is provided at the side wall of the heat dissipation fin 41, and the connecting buckle 7 is clamped on the outer side of the cooling water pipe 42 to stably connect the cooling water pipe 42 with the heat dissipation fin 41. The connecting buckle 7 includes an integrally formed clamping section 71 and a threaded connection section 72. The clamping section 71 is annular, and a clamping opening 8 is provided on the side of the clamping section 71 away from the threaded connection section 72, and the width of the clamping opening 8 is smaller than the outer diameter of the cooling water pipe 42. A mounting opening 9 is provided at the top of the heat dissipation fin 41, and the mounting opening 9 penetrates the heat dissipation fin 41 along the thickness direction of the heat dissipation fin 41. The threaded connection section 72 passes through the mounting opening 9. Two positioning nuts 10 are threadedly connected to the threaded connection section 72, and the two positioning nuts 10 are respectively pressed against the two sides of the heat dissipation fin 41.

[0029] The end of the heat dissipation fin 41 is provided with a receiving opening 11, and the cooling branch pipe 422 passes through the receiving opening 11. A supporting rubber 12 is bonded and fixed to the inner wall of the receiving opening 11, and the supporting rubber 12 is tightly pressed against the cooling branch pipe 422.

[0030] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. An explosion-proof three-phase asynchronous motor, comprising a motor housing (1), a front cover (2) arranged at the front of the motor housing (1), and a rear cover (3) arranged at the rear of the motor housing (1), wherein: A plurality of heat dissipation components (4) are provided on the outside of the motor housing (1), and the plurality of heat dissipation components (4) are sequentially distributed along the circumference of the motor housing (1); the heat dissipation components (4) include a plurality of heat dissipation fins (41) arranged in parallel, and a heat dissipation cavity (5) is formed between two adjacent heat dissipation fins (41); the heat dissipation components (4) also include a cooling water pipe (42), and the cooling water pipe (42) passes through all the heat dissipation cavities (5) in the heat dissipation components (4).

2. The explosion-proof three-phase asynchronous motor according to claim 1, characterized in that: A connecting pipe (6) is provided between two adjacent heat dissipation components (4), and both ends of the connecting pipe (6) are respectively connected to the cooling water pipes (42) on both sides.

3. The explosion-proof three-phase asynchronous motor according to claim 1, characterized in that: A connecting buckle (7) is provided on the side wall of the heat dissipation fin (41), and the connecting buckle (7) is clamped on the outside of the cooling water pipe (42).

4. The explosion-proof three-phase asynchronous motor according to claim 3, characterized in that: The connecting buckle (7) includes an integrally formed snap-fit ​​section (71) and a threaded connection section (72); the snap-fit ​​section (71) is annular; a snap-fit ​​opening (8) is provided on a side of the snap-fit ​​section (71) away from the threaded connection section (72); the width of the snap-fit ​​opening (8) is smaller than the outer diameter of the cooling water pipe (42); and the threaded connection section (72) is fixedly connected to the heat dissipation fin (41).

5. The explosion-proof three-phase asynchronous motor according to claim 4, characterized in that: A mounting opening (9) is provided at the top of the heat dissipation fin (41), and the mounting opening (9) passes through the heat dissipation fin (41) along the thickness direction of the heat dissipation fin (41). The threaded connection section (72) passes through the mounting opening (9), and two positioning nuts (10) are threadedly connected to the threaded connection section (72). The two positioning nuts (10) are respectively pressed against two sides of the heat dissipation fin (41).

6. The explosion-proof three-phase asynchronous motor according to claim 1, characterized in that: The cooling water pipe (42) comprises a cooling main pipe (421) arranged in the heat dissipation cavity (5) and a cooling branch pipe (422) connecting two adjacent cooling main pipes (421), wherein the cooling branch pipe (422) is in an arc shape.

7. The explosion-proof three-phase asynchronous motor according to claim 6, characterized in that: A receiving opening (11) is provided at the end of the heat dissipation fin (41), and the cooling branch pipe (422) passes through the receiving opening (11).

8. The explosion-proof three-phase asynchronous motor according to claim 7, characterized in that: A supporting rubber (12) is bonded and fixed to the inner wall of the receiving opening (11), and the supporting rubber (12) is tightly pressed against the cooling branch pipe (422).

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