CN219181278U

CN219181278U - Rare earth permanent magnet motor convenient for heat dissipation

Info

Publication number: CN219181278U
Application number: CN202223249841.5U
Authority: CN
Inventors: 吴文叶; 张传杨; 华俊
Original assignee: Wuxi Hslt Electric Drive System Co ltd
Current assignee: Wuxi Hslt Electric Drive System Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-06-13
Anticipated expiration: 2032-12-05

Abstract

The utility model discloses a rare earth permanent magnet motor convenient for heat dissipation, which comprises a motor shell, a front end cover, a rear end cover, a rotating shaft, a rotor and first heat dissipation fins, wherein the front end cover is arranged on the left side of the motor shell, the rear end cover is arranged on the right side of the motor shell, the rotating shaft is arranged at the center of the motor shell, the front heat dissipation fan is arranged on the left side of the rotor, the rear heat dissipation fan is arranged on the right side of the rotor, the first heat dissipation fins are arranged on the outer side of the front end cover, heat dissipation holes are formed in the rear end cover, and the second heat dissipation fins are arranged on the outer side of the rear end cover. According to the utility model, through the arrangement of the front cooling fan and the rear cooling fan, when the permanent magnet motor generates heat, the front cooling fan and the rear cooling fan are used for carrying out flowing heat dissipation on the heat, so that the temperature inside the motor shell is reduced, the normal operation of the motor is ensured, and the influence of overhigh temperature on the power and performance of the permanent magnet motor is avoided.

Description

Rare earth permanent magnet motor convenient for heat dissipation

Technical Field

The utility model relates to the technical field of rare earth permanent magnet motor equipment, in particular to a rare earth permanent magnet motor convenient for heat dissipation.

Background

The rare earth permanent magnet motor is a novel permanent magnet motor which appears in the early 70 s, and has a series of advantages of small volume, light weight, high efficiency, good characteristics and the like due to the high magnetic energy product and high coercivity (particularly high intrinsic coercivity) of the rare earth permanent magnet, and meanwhile, the rare earth permanent magnet motor has been widely and successfully applied to a plurality of new energy automobile products developed by world famous automobile companies such as Toyota, ford, general, running and the like.

The existing rare earth permanent magnet motor is inconvenient to dissipate heat in use, for example, a rare earth permanent magnet generator disclosed in application number CN201310350014.1 can generate a large amount of heat under high-speed operation, if the heat cannot be dissipated as soon as possible, the phenomenon that the permanent magnet of the rare earth permanent magnet motor loses magnetism at a high temperature for a long time can be caused, and the phenomenon that the motor is burnt seriously can be caused, so that the rare earth permanent magnet motor is easy to damage is caused.

Therefore, it is necessary to invent a rare earth permanent magnet motor that facilitates heat dissipation to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a rare earth permanent magnet motor convenient for heat dissipation, which solves the problem that the heat dissipation is inconvenient in the technology, and the existing rare earth permanent magnet motor can generate a large amount of heat under high-speed operation, if the heat cannot be dissipated as soon as possible, the phenomenon that the permanent magnet of the rare earth permanent magnet motor loses magnetism at high temperature for a long time can be caused, and the phenomenon that the motor is burnt seriously can be caused, so that the rare earth permanent magnet motor is easy to damage can be caused.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a rare earth permanent magnet motor convenient to heat dissipation, includes motor casing, front end housing, rear end housing, pivot, rotor and first radiating fin, motor casing's left side is provided with the front end housing, motor casing's right side is provided with the rear end housing, motor casing's central point puts the department and is provided with the pivot, the left side of rotor is provided with preceding radiator fan, the right side of rotor is provided with back radiator fan, the outside of front end housing is provided with first radiating fin, the louvre has been seted up on the rear end housing, the outside of rear end housing is provided with second radiating fin.

Preferably, a rotor is arranged in the motor shell, the center line of the rotor is overlapped with the center line of the rotating shaft, and the rotor is connected with the rotating shaft.

Preferably, the outside of rotor is provided with stator winding, stator winding's outside is provided with stator core, stator core's external diameter is less than the internal diameter of motor casing.

Preferably, one end of the rotating shaft is connected with the front cooling fan, the other end of the rotating shaft is connected with the rear cooling fan, and a rotating structure is formed between the rotating shaft and the front cooling fan and between the rotating shaft and the rear cooling fan.

Preferably, the first radiating fins are designed in a rectangular sheet structure, and the first radiating fins are mutually center-symmetrical with respect to the front end cover.

Preferably, the heat dissipation holes are distributed in a circumferential array, and the heat dissipation holes are mutually and centrally symmetrical with respect to the rear end cover.

Preferably, the dustproof net is arranged in the radiating hole, and the dustproof net and the radiating hole are formed by the same structural design.

Preferably, the second radiating fins are designed in a rectangular sheet structure, and the second radiating fins are mutually center-symmetrical with respect to the rear end cover.

In the technical scheme, the utility model has the technical effects and advantages that:

1. through the arrangement of the front cooling fan and the rear cooling fan, when the permanent magnet motor generates heat, the front cooling fan and the rear cooling fan carry out flowing heat dissipation on the heat, so that the temperature inside the motor shell is reduced to ensure the normal operation of the motor, and the influence of overhigh temperature on the power and performance of the permanent magnet motor is avoided;

2. through the setting of first radiating fin and second radiating fin, owing to be provided with first radiating fin in the front end housing outside, the rear end housing outside is provided with second radiating fin to cooperate preceding radiator fan and rear radiator fan to promote the giving off of heat, and absorb the heat and give off in the air, with this radiating effect of having strengthened, and then extension permanent magnet motor's life.

Drawings

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

FIG. 2 is a schematic diagram of a three-dimensional structure of a rotor and stator winding according to the present utility model;

FIG. 3 is a schematic diagram of a front end cover and a first heat dissipating fin according to the present utility model;

FIG. 4 is a schematic perspective view of a rear end cap of the present utility model;

fig. 5 is a schematic perspective view of a dust screen and a second heat dissipating fin according to the present utility model.

Reference numerals illustrate:

1. a motor housing; 2. a front end cover; 3. a rear end cover; 4. a rotating shaft; 5. a rotor; 6. a stator winding; 7. a stator core; 8. a front heat radiation fan; 9. a rear heat radiation fan; 10. a first heat radiating fin; 11. a heat radiation hole; 12. a dust screen; 13. and a second heat radiating fin.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

The utility model provides a rare earth permanent magnet motor convenient for heat dissipation, which is shown in fig. 1-5, and comprises a motor shell 1, a front end cover 2, a rear end cover 3, a rotating shaft 4, a rotor 5 and a first heat dissipation fin 10, wherein the front end cover 2 is arranged on the left side of the motor shell 1, the rear end cover 3 is arranged on the right side of the motor shell 1, the rotating shaft 4 is arranged at the central position of the motor shell 1, the front heat dissipation fan 8 is arranged on the left side of the rotor 5, the rear heat dissipation fan 9 is arranged on the right side of the rotor 5, the first heat dissipation fin 10 is arranged on the outer side of the front end cover 2, the heat dissipation hole 11 is formed in the rear end cover 3, and the second heat dissipation fin 13 is arranged on the outer side of the rear end cover 3.

The inside of motor casing 1 is provided with rotor 5, and the central line of rotor 5 and the central line of pivot 4 coincide each other, and rotor 5 is connected with pivot 4, and the outside of rotor 5 is provided with stator winding 6, and the outside of stator winding 6 is provided with stator core 7, and stator core 7's external diameter is less than the internal diameter of motor casing 1, and the one end of pivot 4 is connected with preceding radiator fan 8, and the other end of pivot 4 is connected with back radiator fan 9, constitutes rotating-structure between pivot 4 and preceding radiator fan 8, the back radiator fan 9.

The first radiating fins 10 are formed by designing rectangular sheet structures, the first radiating fins 10 are mutually symmetrical with respect to the front end cover 2 in a central mode, the radiating holes 11 are distributed in a circumferential array mode, the radiating holes 11 are mutually symmetrical with respect to the rear end cover 3 in a central mode, dust screens 12 are arranged in the radiating holes 11, the dust screens 12 are formed by designing the same structures as the radiating holes 11, the second radiating fins 13 are formed by designing rectangular sheet structures, and the second radiating fins 13 are mutually symmetrical with respect to the rear end cover 3 in a central mode.

The working principle of the utility model is as follows:

referring to fig. 1-5 of the specification, when the device is used, firstly, the rare earth permanent magnet motor is installed at a required position to operate, when the rare earth permanent magnet motor works, a large amount of heat is generated, and when the rotating shaft 4 rotates, the front cooling fan 8 and the rear cooling fan 9 can be driven to conduct flowing heat dissipation on the heat, when the air passes through the inside of the motor shell 1, impurities in the air can be filtered through the dust screen 12, and the front cooling fan 8 and the rear cooling fan 9 can accelerate the heat dissipation in the motor shell 1, so that demagnetization caused by overhigh temperature in the rare earth permanent magnet motor is prevented, the working performance of the rare earth permanent magnet motor is improved, meanwhile, the first cooling fins 10 are arranged on the outer side of the front end cover 2, and the second cooling fins 13 are arranged on the outer side of the rear end cover 3, so that the heat dissipation is promoted by matching the front cooling fan 8 and the rear cooling fan 9, the heat dissipation effect is enhanced, and the service life of the rare earth permanent magnet motor is prolonged.

Claims

1. The utility model provides a rare earth permanent magnet motor convenient to heat dissipation, includes motor casing (1), front end housing (2), rear end housing (3), pivot (4), rotor (5) and first radiating fin (10), its characterized in that: the motor casing (1) left side is provided with front end housing (2), the right side of motor casing (1) is provided with rear end housing (3), the central point of motor casing (1) puts and is provided with pivot (4), the left side of rotor (5) is provided with preceding radiator fan (8), the right side of rotor (5) is provided with back radiator fan (9), the outside of front end housing (2) is provided with first fin (10), louvre (11) have been seted up on rear end housing (3), the outside of rear end housing (3) is provided with second fin (13).

2. The rare earth permanent magnet motor facilitating heat dissipation according to claim 1, wherein: the motor is characterized in that a rotor (5) is arranged in the motor shell (1), the center line of the rotor (5) is mutually overlapped with the center line of the rotating shaft (4), and the rotor (5) is connected with the rotating shaft (4).

3. The rare earth permanent magnet motor facilitating heat dissipation according to claim 2, wherein: the motor is characterized in that a stator winding (6) is arranged on the outer side of the rotor (5), a stator iron core (7) is arranged on the outer side of the stator winding (6), and the outer diameter of the stator iron core (7) is smaller than the inner diameter of the motor shell (1).

4. The rare earth permanent magnet motor facilitating heat dissipation according to claim 2, wherein: one end of the rotating shaft (4) is connected with the front cooling fan (8), the other end of the rotating shaft (4) is connected with the rear cooling fan (9), and a rotating structure is formed between the rotating shaft (4) and the front cooling fan (8) and between the rotating shaft and the rear cooling fan (9).

5. The rare earth permanent magnet motor facilitating heat dissipation according to claim 1, wherein: the first radiating fins (10) are designed in a rectangular sheet structure, and the first radiating fins (10) are mutually symmetrical with respect to the front end cover (2) in a central mode.

6. The rare earth permanent magnet motor facilitating heat dissipation according to claim 1, wherein: the radiating holes (11) are distributed in a circumferential array, and the radiating holes (11) are mutually and centrally symmetrical relative to the rear end cover (3).

7. The rare earth permanent magnet motor facilitating heat dissipation according to claim 6, wherein: the dustproof mesh (12) is arranged in the radiating hole (11), and the dustproof mesh (12) and the radiating hole (11) are formed by the same structural design.

8. The rare earth permanent magnet motor facilitating heat dissipation according to claim 1, wherein: the second radiating fins (13) are designed in a rectangular sheet structure, and the second radiating fins (13) are mutually symmetrical with respect to the rear end cover (3) in center.