CN219145194U

CN219145194U - Heat radiation structure of rare earth permanent magnet synchronous motor

Info

Publication number: CN219145194U
Application number: CN202320096771.XU
Authority: CN
Inventors: 郝明前
Original assignee: Tianjin Tianpeng Energy Technology Co ltd
Current assignee: Tianjin Tianpeng Energy Technology Co ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-06-06
Anticipated expiration: 2033-02-01

Abstract

The utility model discloses a rare earth permanent magnet synchronous motor radiating structure, which comprises a motor shell, wherein a cooling fan is arranged above the inside of the motor shell, a ventilation screen plate is arranged below the cooling fan, a cooling water tank is arranged at one side outside the motor shell, the tail end of the cooling water pipe is connected with a cooling box, and a cooling cavity is arranged at the inner side of the cooling box; and the circulating water pump is arranged in the cooling box, and a circulating pipeline is arranged above the circulating water pump. This tombarthite PMSM heat radiation structure compares with current device, can take out the cooling liquid in the cooling water tank through elevator pump and cooling water pipe, can reduce the temperature in the cooling water pipe through the cooling liquid to can absorb the heat of motor housing inner wall through the cooling water pipe of low temperature, reach the effect of heat exchange and cooling, the cooling fan can ventilate the otter board and blow in to the motor housing, improved the radiating effect.

Description

Heat radiation structure of rare earth permanent magnet synchronous motor

Technical Field

The utility model relates to the technical field of motor heat dissipation structures, in particular to a rare earth permanent magnet synchronous motor heat dissipation structure.

Background

The rare earth permanent magnet synchronous motor is a motor made of permanent magnet materials, has small volume, energy conservation and good control performance, is easy to be made into low-speed direct drive, and eliminates a gear reduction device; the elevator has low noise, leveling precision and comfort superior to those of the prior driving system, and is suitable for use in elevator without machine room. The permanent magnet synchronous motor driving system is favored by large elevator companies quickly, and special frequency converter series products matched with the driving system are marketed in various brands, so that more heat can be generated in the motor use process, and a matched heat dissipation structure is generally needed, so that the heat dissipation structure of the rare earth permanent magnet synchronous motor is needed.

The Chinese patent with the publication number of CN218041031U discloses an outer rotor motor heat radiation structure, which comprises a motor main body, wherein a protection plate is arranged on the outer surface wall of the motor main body, a filter layer is arranged on the outer surface wall of the protection plate, a bolt component is arranged on one side of the filter layer, a base is arranged below the motor main body, a heat radiation component is arranged on one side of the motor main body, a heat radiation disc is arranged on one side of the heat radiation component, and a rotating shaft is arranged on the other side of the motor main body; according to the utility model, the motor main body, the heat radiating assembly, the heat radiating disc, the rotating shaft, the rotor assembly, the heat radiating fan and the heat radiating fin are arranged, when the heat radiating structure is used, the motor main body is started, the rotating shaft drives the rotor assembly to operate, the heat radiating fan in the heat radiating assembly radiates heat inside the motor main body, heat is conducted out through the heat radiating opening and the heat radiating fin, the heat radiating effect is good, the motor is not damaged, and the service life of the motor is prolonged.

Although the heat dissipation fan in the heat dissipation assembly can conduct heat dissipation treatment on the inside of the motor main body, a good heat dissipation effect is difficult to achieve through a single heat dissipation assembly, and if the heat accumulated in the motor is more, the problem that the temperature of the motor is too high, the rotation speed is reduced and the service life is reduced due to the fact that the heat dissipation effect is not ideal is solved, so that the heat dissipation structure of the rare earth permanent magnet synchronous motor is provided.

Disclosure of Invention

The utility model aims to provide a rare earth permanent magnet synchronous motor heat radiation structure, which aims to solve the problems that in the prior art, a good heat radiation effect is difficult to achieve by only a single heat radiation component, for example, when heat accumulated in a motor is more, the heat radiation effect is not ideal, so that the temperature of the motor is too high, the rotating speed is reduced, and the service life is shortened.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a rare earth permanent magnet synchronous motor heat dissipation structure, comprising:

the motor comprises a motor shell, wherein a cooling fan is arranged above the motor shell, a ventilation screen plate is arranged below the cooling fan, hollowed-out screen surfaces are arranged on two sides of the lower part of the motor shell, an elastic limiting ring is arranged on the inner side of each hollowed-out screen surface, and a packaging plate is arranged below each hollowed-out screen surface;

the cooling water tank is arranged at one side outside the motor casing, a lifting pump is arranged in the cooling water tank, one side of the lifting pump is connected with a cooling water pipe, the tail end of the cooling water pipe is connected with a cooling box, and a cooling cavity is formed in the inner side of the cooling box;

and the circulating water pump is arranged in the cooling box, and a circulating pipeline is arranged above the circulating water pump.

Preferably, the cooling water tank forms the communication structure through between elevator pump and the cooling water pipe, and the cooling water pipe is laminated mutually with the inner wall of motor housing to the cooling water pipe is S-shaped distribution.

Preferably, the cooling water pipe is communicated with the cooling box, and an enclosing structure is formed between the cooling box and the cooling cavity.

Preferably, the cooling fan coincides with the vertical center line of the motor shell, and the breathable net plate and the hollowed-out net surface are of hollowed-out net structures.

Preferably, the cooling fan is further provided with:

the packaging cover is arranged above the cooling fan, and a plurality of heat dissipation holes are formed in the packaging cover.

Preferably, the elastic limiting ring is fixedly connected with the motor shell, and the elastic limiting ring coincides with the center point of the lower end surface of the motor shell.

Preferably, the package board is further provided with:

the dustproof cotton plates are arranged on two sides in the packaging plate, are parallel to the hollowed-out net surface and are detachably connected with the packaging plate.

Compared with the prior art, the utility model provides a rare earth permanent magnet synchronous motor heat dissipation structure, which has the following beneficial effects:

according to the utility model, the cooling liquid in the cooling water tank can be pumped out through the lifting pump and the cooling water pipe, the temperature in the cooling water pipe can be reduced through the cooling liquid, so that the heat of the inner wall of the motor shell can be absorbed through the low-temperature cooling water pipe, the effects of heat exchange and cooling are achieved, the cooling fan can blow the inside of the motor shell through the ventilation screen plate, the hot air discharge can be accelerated, the heat dissipation effect is improved, and the problems that a good heat dissipation effect is difficult to achieve only through a single heat dissipation component, and the motor temperature is too high, the rotating speed is reduced and the service life is shortened due to the fact that the heat dissipation effect is not ideal when the heat accumulated in the motor is more are avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a motor housing in cross section in a bottom view;

FIG. 3 is a schematic top view of the motor housing of the present utility model;

fig. 4 is a schematic view of the lower end face structure of the motor housing of the present utility model.

In the figure: 1. a motor housing; 2. a cooling fan; 3. a package cover; 4. a heat radiation hole; 5. a breathable mesh plate; 6. a cooling water tank; 7. a lift pump; 8. a cooling water pipe; 9. a cooling box; 10. a cooling chamber; 11. a circulating water pump; 12. a circulation pipe; 13. hollowed-out net surface; 14. an elastic limit ring; 15. a package plate; 16. dust-proof cotton plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, a rare earth permanent magnet synchronous motor heat dissipation structure includes: the motor comprises a motor housing 1, wherein a cooling fan 2 is arranged above the inside of the motor housing 1, a ventilation screen 5 is arranged below the cooling fan 2, hollowed-out net surfaces 13 are arranged on two sides of the inside and the below of the motor housing 1, an elastic limiting ring 14 is arranged on the inside of the hollowed-out net surfaces 13, the elastic limiting ring 14 is fixedly connected with the motor housing 1, and the elastic limiting ring 14 is overlapped with the center point of the lower end surface of the motor housing 1; the stability of the joint of the motor and the motor shell 1 can be improved through the elastic limiting ring 14; a packaging plate 15 is arranged below the hollowed-out net surface 13; the cooling fan 2 coincides with the vertical center line of the motor shell 1, and the ventilation screen 5 and the hollowed-out screen surface 13 are of hollowed-out net structures; the cooling fan 2 can blow the air in the motor shell 1 through the ventilation screen plate 5, and hot air can be conveniently discharged through the hollowed-out screen surface 13, so that hot air discharge can be accelerated, and the heat dissipation effect is improved; the cooling water tank 6 is arranged on one side outside the motor shell 1, the lifting pump 7 is arranged in the cooling water tank 6, one side of the lifting pump 7 is connected with the cooling water pipe 8, the cooling water tank 6 forms a communication structure with the cooling water pipe 8 through the lifting pump 7, the cooling water pipe 8 is attached to the inner wall of the motor shell 1, and the cooling water pipe 8 is distributed in an S shape; the temperature-reducing liquid in the temperature-reducing water tank 6 can be pumped out through the lifting pump 7 and the temperature-reducing water pipe 8, and the temperature in the temperature-reducing water pipe 8 can be reduced through the temperature-reducing liquid, so that the heat of the inner wall of the motor shell 1 can be absorbed through the low-temperature-reducing water pipe 8, and the effects of heat exchange and temperature reduction are achieved; the tail end of the cooling water pipe 8 is connected with a cooling box 9, and a cooling cavity 10 is arranged on the inner side of the cooling box 9; a circulating water pump 11 installed inside the cooling tank 9, and a circulating pipe 12 installed above the circulating water pump 11; the cooling water pipe 8 is communicated with the cooling box 9, and an enclosing structure is formed between the cooling box 9 and the cooling cavity 10; the cooling water pipe 8 can convey circulating liquid into the cooling box 9, the cooling agent stored in the cooling cavity 10 can cool the liquid in the cooling box 9 again, and the cooled liquid can flow into the cooling water tank 6 again through the circulating water pump 11 and the circulating pipeline 12, so that the effect of circulating cooling is achieved.

Referring to fig. 1, 3 and 4, a heat dissipation structure of a rare earth permanent magnet synchronous motor includes: the packaging cover 3 is arranged above the cooling fan 2, and a plurality of heat dissipation holes 4 are formed in the packaging cover 3; the heat dissipation holes 4 in the packaging cover 3 can facilitate the heat dissipation of the cooling fan 2; the dustproof cotton plates 16 are arranged on two sides in the packaging plate 15, the dustproof cotton plates 16 are parallel to the hollowed-out net surface 13, and the dustproof cotton plates 16 are detachably connected with the packaging plate 15; the dustproof cotton plate 16 can absorb and separate external dust, so that dust can be prevented from being carried out in the shell by the hollowed-out net surface 13, and the dustproof effect is achieved.

Working principle: when the rare earth permanent magnet synchronous motor heat dissipation structure is used, the stability of the joint of the motor and the motor shell 1 can be improved through the elastic limiting ring 14, and meanwhile, the dustproof cotton plate 16 can absorb and separate external dust, so that dust is prevented from being conducted in the shell from the hollowed-out net surface 13, and the dustproof effect is achieved; secondly, when the motor is in operation, the lifting pump 7 is started, the cooling liquid in the cooling water tank 6 is pumped out by the lifting pump 7 and the cooling water pipe 8, the temperature in the cooling water pipe 8 can be reduced through the cooling liquid, and therefore the heat of the inner wall of the motor shell 1 is absorbed through the low-temperature cooling water pipe 8, and the effects of heat exchange and cooling are achieved; then the cooling water pipe 8 conveys the circulated liquid into the cooling box 9, the liquid in the cooling box 9 can be cooled again by the coolant stored in the cooling cavity 10, and the cooled liquid can flow into the cooling water tank 6 again through the circulating water pump 11 and the circulating pipeline 12, so that the effect of circulating cooling is achieved; finally, the cooling fan 2 is started, the ventilation screen plate 5 of the cooling fan 2 blows air into the motor shell 1, and hot air is discharged conveniently through the hollowed-out screen surface 13, so that hot air discharge can be accelerated, the heat dissipation effect is improved, and meanwhile, the heat dissipation holes 4 in the packaging cover 3 can facilitate heat dissipation of the cooling fan 2, so that the working principle of the rare earth permanent magnet synchronous motor heat dissipation structure is achieved.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tombarthite PMSM heat radiation structure which characterized in that includes:

the motor comprises a motor shell (1), wherein a cooling fan (2) is arranged above the inside of the motor shell (1), a ventilation screen plate (5) is arranged below the cooling fan (2), hollowed-out screen surfaces (13) are arranged on two sides of the inside of the motor shell (1), an elastic limiting ring (14) is arranged on the inner side of the hollowed-out screen surfaces (13), and a packaging plate (15) is arranged below the hollowed-out screen surfaces (13);

the cooling water tank (6) is arranged on one side outside the motor shell (1), a lifting pump (7) is arranged in the cooling water tank (6), one side of the lifting pump (7) is connected with a cooling water pipe (8), the tail end of the cooling water pipe (8) is connected with a cooling box (9), and a cooling cavity (10) is formed in the inner side of the cooling box (9);

and a circulating water pump (11) which is installed inside the cooling box (9), wherein a circulating pipeline (12) is installed above the circulating water pump (11).

2. The rare earth permanent magnet synchronous motor radiating structure according to claim 1, wherein the cooling water tank (6) forms a communicating structure with the cooling water pipe (8) through the lifting pump (7), the cooling water pipe (8) is attached to the inner wall of the motor shell (1), and the cooling water pipe (8) is distributed in an S shape.

3. The heat dissipation structure of a rare earth permanent magnet synchronous motor according to claim 1, wherein the cooling water pipe (8) is mutually communicated with the cooling box (9), and an enclosing structure is formed between the cooling box (9) and the cooling cavity (10).

4. The heat dissipation structure of a rare earth permanent magnet synchronous motor according to claim 1, wherein the cooling fan (2) is coincident with a vertical center line of the motor housing (1), and the ventilation screen (5) and the hollowed-out screen (13) are both of hollowed-out net structures.

5. The heat dissipation structure of a rare earth permanent magnet synchronous motor according to claim 1, wherein the cooling fan (2) is further provided with:

the packaging cover (3) is arranged above the cooling fan (2), and a plurality of radiating holes (4) are formed in the packaging cover (3).

6. The heat dissipation structure of a rare earth permanent magnet synchronous motor according to claim 1, wherein the elastic limiting ring (14) is fixedly connected with the motor housing (1), and the elastic limiting ring (14) coincides with a center point of a lower end surface of the motor housing (1).

7. A rare earth permanent magnet synchronous motor heat dissipation structure according to claim 1, characterized in that the package plate (15) is further provided with:

the dustproof cotton plates (16) are arranged on two sides in the packaging plate (15), the dustproof cotton plates (16) are parallel to the hollowed-out net surface (13), and the dustproof cotton plates (16) are detachably connected with the packaging plate (15).