CN218771643U

CN218771643U - Motor based on heat dissipation of S-shaped vapor chamber

Info

Publication number: CN218771643U
Application number: CN202222836086.4U
Authority: CN
Inventors: 尹树彬; 黎洪铭; 汤勇; 张仕伟; 黄梓滨; 余小媚
Original assignee: Guangdong Changneng Investment Holdings Co ltd
Current assignee: Guangdong Changneng Investment Holdings Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-03-28
Anticipated expiration: 2032-10-27

Abstract

The utility model relates to a motor based on S-shaped vapor chamber heat dissipation, which comprises a shell, a stator core and an overhanging partial winding, wherein a phase change device is arranged between the shell and the overhanging partial winding; one end of the phase change device is abutted to the overhanging partial winding, the other end of the phase change device is abutted to the inner wall of the shell, and the middle of the phase change device is abutted to the side of the stator core. Because the phase change device has excellent heat transfer characteristic, most of the heat generated by the overhanging partial winding is transferred through the phase change device, and the heat transfer quantity to the winding wrapped by the stator core is greatly reduced, the heat dissipation burden of the winding wrapped by the stator core cannot be increased in the heat dissipation process of the overhanging partial winding. The heat of the stator core wrapping part of the winding can be quickly transferred to the shell through the phase change device, and the heat transfer burden of the stator core is reduced. Through the phase change device which is simultaneously contacted with the shell, the stator core and the overhanging part winding, the heat transfer path of the overhanging part winding has low thermal resistance, and high-efficiency heat dissipation can be realized.

Description

Motor based on heat dissipation of S-shaped vapor chamber

Technical Field

The utility model belongs to the technical field of the motor heat dissipation, concretely relates to motor based on S type soaking plate is radiating.

Background

The motor is an electric component which converts electric energy and mechanical energy into each other, and when the electric energy is converted into the mechanical energy, the motor shows the working characteristics of the motor; when the mechanical energy is converted to electrical energy, the electrical machine exhibits the operating characteristics of a generator. Compared with other types of motors, the permanent magnet synchronous motor has the greatest advantages of higher power density and torque density, and can provide the greatest power output and acceleration for a new energy automobile under the same mass and volume compared with other types of motors. The permanent magnet synchronous motor is the main reason of the first choice in the new energy automobile industry with extremely high requirements on space and self weight. However, it has its own disadvantages, and the permanent magnetic material on the rotor will generate magnetic decay under the conditions of high temperature, vibration and overcurrent, so that the motor is easy to be damaged. Therefore, heat dissipation is an important factor for limiting the limit power of the permanent magnet synchronous motor. At present, air cooling and liquid cooling are mainstream motor heat dissipation technologies, and the principle of the technology is that a motor copper wire winding transfers heat to a machine shell through an insulating layer, a stator core and the like, and then the heat is dissipated by air or liquid working media.

The windings inside the stator include a stator core-wrapped portion winding and a copper wire winding (an overhang portion winding) exposed outside the stator core. The shell of the existing motor is in contact with the stator core, only the direct dissipation of the heat of the winding of the wrapping part of the stator core can be realized, and the winding of the overhanging part needs to firstly transfer the heat to the winding of the wrapping part of the stator core and then transfer the heat to the shell by the winding of the wrapping part of the stator core, so that the indirect dissipation of the heat is realized. The indirect heat dissipation path has high thermal resistance, efficient heat dissipation of the overhanging portion winding is difficult to achieve, when heat of the overhanging portion winding is transferred to the iron core wrapping portion winding, the heat dissipation burden of the stator iron core wrapping portion winding is increased, the overall performance of the motor is affected, and the temperature of the overhanging portion winding copper wire becomes an important index for judging whether the motor reaches the protection temperature.

Therefore, the reduction of the temperature of the winding of the overhanging part has important significance for realizing the high-efficiency heat dissipation and power promotion of the motor.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists among the prior art, the utility model discloses an aim at: the heat dissipation load of the winding of the stator core wrapping part cannot be increased in the heat dissipation process, and the overall performance of the motor is improved.

The utility model discloses the purpose is realized through following technical scheme:

a motor based on S-shaped vapor chamber heat dissipation comprises a shell, a stator core and an overhanging part winding, wherein a phase change device is arranged between the shell and the overhanging part winding; one end of the phase change device is abutted to the overhanging partial winding, the other end of the phase change device is abutted to the inner wall of the shell, and the middle of the phase change device is abutted to the side of the stator core.

Furthermore, one end of the phase change device is provided with a clamping portion, and the clamping portion is clamped on the overhanging portion winding.

Further, the clamping part is U-shaped.

Further, the phase change device is S-shaped.

Furthermore, the contact surface of the phase change device and the overhanging partial winding is coated with heat-conducting glue.

Furthermore, the phase change devices are arranged in a plurality and are uniformly distributed on the overhanging partial winding.

Compared with the prior art, the utility model discloses following beneficial effect has:

because the phase change device has excellent heat transfer characteristic, most of the heat generated by the overhanging partial winding is transferred through the phase change device, and the heat transfer quantity to the winding wrapped by the stator core is greatly reduced, the heat dissipation burden of the winding wrapped by the stator core cannot be increased in the heat dissipation process of the overhanging partial winding. The heat of the stator core wrapping part of the winding can be quickly transferred to the shell through the phase change device, and the heat transfer burden of the stator core is reduced. Through the phase change device which is simultaneously contacted with the shell, the stator core and the overhanging part winding, the heat transfer path of the overhanging part winding has low thermal resistance, and high-efficiency heat dissipation can be realized.

Drawings

Fig. 1 is a schematic view of the assembly of a phase change device with a stator of an electric machine.

Fig. 2 is a schematic cross-sectional view of a phase change device nested with a partially wound motor suspension.

Fig. 3 is a schematic three-dimensional structure diagram of the S-shaped soaking plate.

In the figure:

1-phase change device, 2-overhanging partial winding, 3-stator core, 4-evaporation section and 5-condensation section.

Detailed Description

The present invention is described in further detail below.

As shown in fig. 1 and 2, an S-shaped vapor chamber heat dissipation-based motor includes a casing, a stator core 3, and an overhang winding 2, and a phase change device 1 is disposed between the casing and the overhang winding 2; one end of the phase change device 1 is abutted to the overhanging partial winding 2, the other end of the phase change device 1 is abutted to the inner wall of the shell, and the middle of the phase change device 1 is abutted to the side of the stator core 3.

During operation, the heat generated by the overhanging partial winding 2 is firstly transferred to one end of the phase change device 1, and then transferred to the inner wall of the shell from the other end of the phase change device 1, and the quick dissipation is realized through the air-cooled or water-cooled shell. Because the phase change device 1 has excellent heat transfer characteristics, most of the heat generated by the overhanging partial winding 2 is transferred through the phase change device 1, and the heat transfer quantity of the winding wrapped on the stator core 3 is greatly reduced, so that the heat dissipation burden of the winding wrapped on the stator core 3 can not be increased in the heat dissipation process of the overhanging partial winding 2. The heat of the stator core 3 wrapping part of the winding can be quickly transferred to the machine shell through the phase change device 1 with excellent heat transfer characteristics, so that the heat transfer burden of the stator core 3 is greatly reduced, and the working temperature of the stator core 3 is reduced. Through setting up phase change device 1 with casing, stator core 3 and the contact of overhanging portion partial winding 2 simultaneously, the heat transfer path thermal resistance of overhanging portion partial winding 2 is less, can realize high-efficient heat dissipation, is favorable to promoting the wholeness ability of motor.

In order to improve the stability of the phase change device 1 installed on the overhanging portion partial winding 2, one end of the phase change device 1 is provided with a clamping portion, and the clamping portion is clamped on the overhanging portion partial winding 2. Specifically, the clamping part is U-shaped. The overhanging partial winding 2 is embedded in the U-shaped clamping part.

The phase change device 1 as a whole assumes an S-shape. Preferably, the phase change device 1 is a thermal spreader.

In order to improve the heat transfer performance, the contact surface of the phase change device 1 and the overhanging partial winding 2 is coated with a heat conducting interface material, preferably a heat conducting glue.

The phase change devices 1 are provided in plurality, and the plurality of phase change devices 1 are uniformly arranged in the overhang portion winding 2 in the circumferential direction of the overhang portion winding 2.

The evaporation section 4 of the phase change device 1 can be embedded between any layers of the overhanging partial winding 2, for example, one phase change device 1 is embedded between the 1 st-2 nd layers of the flat wire, and the other phase change device 1 is embedded between the 2-3 th layers or 3-4 th layers of the flat wire.

The working process of the embodiment is as follows:

1. the phase change device 1 is bent by a mold, the bent phase change device 1 is approximately S-shaped, the shape of the bent phase change device is shown in figure 3, and the bent phase change device 1 comprises an evaporation section 4, wherein the S-shaped phase change device 1 wraps the overhanging partial winding 2, and a condensation section 5, wherein the S-shaped phase change device 1 is tightly attached to the cooling machine shell and the stator core. The phase change device 1 is custom designed and manufactured for different sizes of motors. If the width of the phase change device 1 is insufficient, two or more bent S-shaped phase change device 1 belts can be spliced into a ring.

2. The evaporation end of the S-shaped phase change device 1 is embedded between the overhanging partial windings 2, and heat-conducting glue is filled in the gap to completely wrap the windings, so that the heat of the overhanging partial windings 2 is ensured to be rapidly led out and transferred to the shell.

The embodiment has the following advantages:

the heat dissipation condition of the winding at the overhanging part can be obviously improved, the temperature of the motor winding is reduced, the rated service power of the motor is improved, and the motor is light and miniaturized. The phase change device 1 is implemented on the basis of industrial production, and the cost is low. Simple and convenient operation, convenience and practicality. Simple structure and low assembly requirement. The device has low requirement on precision of parts and is easy to process.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. The utility model provides a motor based on heat dissipation of S type soaking board, includes casing, stator core and overhanging portion partial winding, its characterized in that: a phase change device is arranged between the shell and the overhanging part winding; one end of the phase change device is abutted to the overhanging partial winding, the other end of the phase change device is abutted to the inner wall of the casing, and the middle of the phase change device is abutted to the side of the stator core.

2. The heat dissipation motor based on the S-shaped soaking plate as claimed in claim 1, wherein: one end of the phase change device is provided with a clamping portion, and the clamping portion is clamped on the overhanging portion winding.

3. The heat dissipation motor based on the S-shaped soaking plate as claimed in claim 2, wherein: the clamping part is U-shaped.

4. The heat dissipation motor based on the S-shaped soaking plate as claimed in claim 1, wherein: the phase change device is S-shaped.

5. An S-type soaking plate heat dissipation-based motor according to claim 1, wherein: and the contact surface of the phase change device and the overhanging partial winding is coated with heat-conducting glue.

6. The heat dissipation motor based on the S-shaped soaking plate as claimed in claim 1, wherein: the phase change devices are provided in plurality and are uniformly arranged on the overhanging portion winding.