CN222674043U

CN222674043U - Synchronous motor with heat radiation structure

Info

Publication number: CN222674043U
Application number: CN202420770465.4U
Authority: CN
Inventors: 徐祖平; 徐济高; 裘霖富; 章凯凯; 王力锋
Original assignee: Shaoxing Motai Electromechanical Science & Technology Co ltd
Current assignee: Shaoxing Motai Electromechanical Science & Technology Co ltd
Priority date: 2024-04-15
Filing date: 2024-04-15
Publication date: 2025-03-25
Anticipated expiration: 2034-04-15

Abstract

The utility model discloses a synchronous motor with a heat dissipation structure, which includes a motor body, the motor body includes a shell and a motor driver arranged in the shell, and the motor driver includes a power module; wherein the power module is connected to the inner wall of the shell, and a plurality of first fins are correspondingly arranged on the outer wall of the shell to dissipate heat for the power module. In this technical solution, by connecting the power module of the motor driver to the inner wall of the shell, and correspondingly arranging a plurality of first fins on the outer wall of the shell, when the ventilator is working, the heat generated by the power module will be transferred to the first fins and will be taken away by the axial air.

Description

Synchronous motor with heat radiation structure

Technical Field

The utility model relates to the technical field of motors, in particular to a synchronous motor with a heat dissipation structure.

Background

Conventional ventilators are mostly driven by three-phase or single-phase asynchronous motors. Although the asynchronous motor has lower cost, simple structure and convenient maintenance, the efficiency and the power factor are low, the loss is large, and meanwhile, the flow adjustment of the ventilator and the water pump driven by the motor is usually completed through a regulating air door and a valve, so that the electric energy waste is serious. The flow of the asynchronous motor in the ventilator and the water pump is regulated by a frequency converter to obtain a considerable energy-saving effect, but the frequency converter has higher cost, and the low efficiency of the asynchronous motor still exists.

The AC permanent magnet synchronous motor is a motor which can be directly started in a 50Hz three-phase AC environment, is a high-efficiency energy-saving motor which is made by replacing the traditional electric excitation with rare earth permanent magnet materials, has the advantages of simple structure, reliable operation, small heating and the like of the common permanent magnet motor, has the remarkable characteristics of small volume, light weight, small loss, high efficiency and the like, and can realize the high performance which is difficult to reach by the traditional electric excitation motor.

However, in operation, the power module of the motor driver of the ventilator generates a large amount of heat, and if the heat is not discharged in time, electronic elements are easily burnt out, and components are aged, so that the performance of the motor is affected for a long time.

Disclosure of utility model

The utility model mainly aims to provide a synchronous motor with a heat dissipation structure, and aims to solve the technical problem that a power module of the existing synchronous motor driver can generate a large amount of heat to influence the motor performance for a long time.

In order to achieve the above object, the present utility model provides a synchronous motor having a heat dissipation structure, comprising:

The motor comprises a motor body, a motor controller and a control unit, wherein the motor body comprises a shell and a motor driver arranged in the shell, and the motor driver comprises a power module;

The power module is connected to the inner wall of the shell, and a plurality of first fins are correspondingly arranged on the outer wall of the shell and used for radiating the power module.

Optionally, each of the first fins extends in an axial direction.

Optionally, the outer wall of the housing is further provided with a plurality of second fins for dissipating heat from the stator and the rotor inside the housing.

Optionally, each of the second fins extends in an axial direction.

Optionally, a heat conducting material is arranged at the connection part of the power module and the inner wall of the shell.

According to the technical scheme, the power module of the motor driver is connected to the inner wall of the shell, and the plurality of first fins are arranged on the outer wall of the corresponding shell, so that when the ventilator works, heat generated by the power module can be transferred to the first fins and can be taken away by axial-flow air.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of an embodiment of a synchronous motor with a heat dissipation structure according to the present utility model;

FIG. 2 is a perspective view of the structure of FIG. 1 from another perspective;

FIG. 3 is a perspective view of a portion of the structure of FIG. 1;

Fig. 4 is a top view of fig. 3.

In the figure, a synchronous motor-100 with a heat dissipation structure, a motor body-1, a shell-11, a first fin-112, a second fin-113, a motor driver-12, a power module-121 and a circuit board-122 are shown.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present application 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 application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

For a better description and illustration of embodiments of the utility model, reference should be made to one or more of the accompanying drawings, but the additional details or examples used to describe the drawings should not be construed as limiting the scope of any of the inventive, presently described embodiments or preferred modes of carrying out the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are positional relationships based on the drawings, are merely for convenience of describing the present utility model, and do not indicate that the apparatus referred to must have a specific orientation or operate in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

In operation, the power module of the motor driver of the ventilator generates a large amount of heat, and if the heat is not timely discharged, electronic elements are easy to burn out, and components are aged, so that the performance of the motor can be influenced for a long time.

In view of this, the present utility model proposes a synchronous motor with heat dissipation structure, and fig. 1-4 are diagrams showing an embodiment of the synchronous motor with heat dissipation structure provided in the present utility model, referring to fig. 1-4, the synchronous motor with heat dissipation structure 100 includes a motor body 1, the motor body 1 includes a housing 11 and a motor driver 12 disposed in the housing 11, and the motor driver 12 includes a circuit board 122 and a power module 121 mounted on the circuit board 122. The power module 121 includes a power semiconductor and other elements.

The power module 121 is connected to an inner wall of the housing 11, and a plurality of first fins 112 are disposed on an outer wall of the housing 11 corresponding to the power module 121, so as to dissipate heat of the power module 121.

In the technical scheme of the utility model, the power module 121 of the motor driver 12 is connected to the inner wall of the housing 11, and the outer wall of the corresponding housing 11 is provided with a plurality of first fins 112, so that when the ventilator works, heat generated by the power module 121 can be transferred to the first fins 112 and can be carried away by axial-flow wind.

When the synchronous motor is used in an axial flow fan, referring to fig. 2 and 4, in order to improve the heat dissipation efficiency of the power module 121, in an embodiment of the present utility model, each of the first fins 112 extends along the axial direction, so that the flowing air is fully contacted with the surface of each of the first fins 112, and the heat is dissipated more quickly. The axial direction here refers to a direction along which the motor shaft extends.

In order to remove heat generated by other components inside the motor, referring to fig. 1 and 2, in an embodiment of the present utility model, a plurality of first fins 113 are further disposed on the outer wall of the housing 11 to remove heat generated by the stator and the rotor during friction.

Further, in order to improve the heat dissipation efficiency of the power module 121, in an embodiment of the utility model, a heat conducting material is disposed at the connection between the power module 121 and the inner wall of the housing 11, so as to improve the heat conduction rate.

Also, when the synchronous motor is applied to an axial flow fan, referring to fig. 1 and 2, in order to improve heat dissipation efficiency of other components inside the motor, in an embodiment of the present utility model, each of the first fins 113 extends in an axial direction, so that flowing air is fully contacted with a surface of each of the first fins 113, and heat is dissipated more quickly.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A synchronous motor with a heat dissipation structure, characterized by comprising:

A motor body (1), the motor body (1) comprising a housing (11) and a motor driver (12) disposed in the housing (11), the motor driver (12) comprising a power module (121);

The power module (121) is connected to the inner wall of the outer shell (11), and a plurality of first fins (112) are correspondingly provided on the outer wall of the outer shell (11) for dissipating heat from the power module (121).

2. The synchronous motor with a heat dissipation structure according to claim 1, characterized in that each of the first fins (112) extends in the axial direction.

3. The synchronous motor with a heat dissipation structure according to claim 1, characterized in that the outer wall of the housing (11) is further provided with a plurality of second fins (113) for dissipating heat from the stator and rotor inside the housing.

4. The synchronous motor with a heat dissipation structure according to claim 3, characterized in that each of the second fins (113) extends in the axial direction.

5. The synchronous motor with a heat dissipation structure according to claim 1, characterized in that a heat conductive material is provided at a connection between the power module (121) and an inner wall of the housing (11).