CN215817824U

CN215817824U - Permanent magnet brush direct current motor with good heat dissipation performance

Info

Publication number: CN215817824U
Application number: CN202122030471.5U
Authority: CN
Inventors: 杨喻翔
Original assignee: Suzhou Yaluofu Electromechanical Equipment Co ltd
Current assignee: Suzhou Yaluofu Electromechanical Equipment Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-02-11
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a permanent magnet brush direct current motor with good heat dissipation performance, which comprises a front cover, a stator shell, a rear cover, a flywheel, a rotor and a heat dissipation mechanism, wherein the front cover and the rear cover are respectively installed at two ends of the stator shell in an appointment mode, and the rotor is installed inside the stator shell. According to the utility model, the motor is cooled by the way of combining water cooling and air cooling, the spiral blade drives the cooling liquid in the cooling coil to continuously flow when rotating, the cooling liquid in the cooling coil is continuously and circularly exchanged with the cooling liquid in the cooling cavity through the first connecting pipe and the second connecting pipe, and the wind power generated by the rotation of the fan blade cools the cooling liquid through the cooling coil, so that the temperature of the cooling liquid is reduced, and the stator shell is better cooled.

Description

Permanent magnet brush direct current motor with good heat dissipation performance

Technical Field

The utility model relates to the technical field of motors, in particular to a permanent magnet brush direct current motor with good heat dissipation performance.

Background

The brush DC motor is a DC motor, the stator of the brush motor is provided with a fixed main pole and a brush, and the rotor is provided with an armature winding and a commutator. Electric energy of a direct current power supply enters an armature winding through an electric brush and a commutator to generate armature current, and a magnetic field generated by the armature current interacts with a main magnetic field to generate electromagnetic torque so that a motor rotates to drive a load. The motor is represented by a letter M (old standard is represented by D) in a circuit, and the motor mainly plays a role in generating driving torque and is used as a power source of electric appliances or various machines.

The motor among the prior art dispels the heat through the mode of the one end installation flabellum at the motor, but the wind-force that the flabellum produced is not enough to take away the holistic heat of motor for there is a large amount of heat dissipation dead angles, thereby leads to the heat dissipation of motor not good, influences the normal operating of motor.

Therefore, how to provide a permanent magnet brush direct current motor with good heat dissipation performance to solve the problems in the prior art has important significance for the application of the permanent magnet brush direct current motor.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present application is to provide a permanent magnet brush dc motor with good heat dissipation, so as to solve the problem that the motor in the prior art dissipates heat through a manner of installing a fan blade at one end of the motor, but wind power generated by the fan blade is not enough to take away heat of the whole motor, so that a large number of heat dissipation dead corners exist, and thus heat dissipation of the motor is poor and normal operation of the motor is affected.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a good heat dissipation's permanent magnetism brush DC motor, includes protecgulum, stator shell, back lid, flywheel, rotor and heat dissipation mechanism, the both ends of reservation stator shell are installed respectively to protecgulum and back lid, the rotor is installed in the inside of stator shell, the both ends of rotor extend to the outside of protecgulum and back lid respectively and fixedly connected with flabellum and flywheel, heat dissipation mechanism installs in the outside of protecgulum.

As a preferable technical scheme of the utility model, the outer wall of the stator shell is double-layer, and the outer wall of the stator shell is provided with a cooling cavity.

As a preferred technical solution of the present invention, the heat dissipation mechanism includes a cooling coil, a volute, a first bracket and a second bracket, the first bracket is fixedly connected to the top end of the front cover, the second bracket is fixedly connected to the bottom end of the front cover, the end of the second bracket is fixedly connected to the bottom end of the cooling coil, the end of the first bracket is fixedly connected to the top end of the cooling coil, and the volute is installed in the middle of the cooling coil.

As a preferable technical solution of the present invention, the top end of the cooling coil is communicated with the cooling cavity through a first connecting pipe, and the bottom end of the cooling coil is communicated with the cooling cavity through a second connecting pipe.

As a preferable technical scheme of the utility model, the spiral blade is rotatably connected inside the volute, and the tail end of the rotor is fixedly connected with the spiral blade.

As a preferable technical scheme of the utility model, a water inlet valve is installed at the top end of the cooling cavity, and a water discharge valve is installed at the bottom end of the cooling cavity.

As a preferable technical solution of the present invention, the cooling coil is provided in a circular shape, and a diameter of the cooling coil is equal to a diameter of the fan blade.

Compared with the prior art, the utility model has the beneficial effects that:

the cooling device comprises a fan blade, a spiral blade, a cooling coil, a first connecting pipe, a second connecting pipe, a cooling coil, a fan blade, a cooling coil, a cooling cavity, a cooling coil, a fan blade, a cooling coil, a cooling fan, and a cooling fan.

The foregoing description is only an overview of the technical solutions of the present application, so that the technical means of the present application can be more clearly understood and the present application can be implemented according to the content of the description, and in order to make the above and other objects, features and advantages of the present application more clearly understood, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the structure of A-A of the present invention;

fig. 3 is a schematic view of the structure of the cooling coil of the present invention.

In the figure: 1. a front cover; 2. a stator housing; 3. a rear cover; 4. a flywheel; 5. a cooling chamber; 6. a first connecting pipe; 7. a first bracket; 8. a rotor; 9. a fan blade; 10. a volute; 11. a cooling coil; 12. a second bracket; 13. a second connecting pipe; 14. a drain valve; 15. a water inlet valve; 16. helical leaves.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. In the following description, specific details such as specific configurations and components are provided only to help the embodiments of the present application be fully understood. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.

Further, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.

Referring to fig. 1-3, the present invention provides a technical solution of a permanent magnet brush dc motor with good heat dissipation: the utility model provides a good heat dissipation's permanent magnetism brush DC motor, including protecgulum 1, stator housing 2, back lid 3, flywheel 4, rotor 8 and heat dissipation mechanism, protecgulum 1 and back lid 3 install the both ends of reservation stator housing 2 respectively, rotor 8 is installed in stator housing 2's inside, rotor 8's both ends extend to protecgulum 1 and back lid 3's outside and fixedly connected with flabellum 9 and flywheel 4 respectively, heat dissipation mechanism installs in the outside of protecgulum 1, assist the heat dissipation through heat dissipation mechanism, and the heat dissipation efficiency is improved.

Referring to fig. 2, the outer wall of the stator housing 2 is double-layered, and the outer wall of the stator housing 2 is provided with a cooling cavity 5 for storing cooling liquid and absorbing heat generated by the stator housing 2.

Referring to fig. 2 and fig. 3, the heat dissipation mechanism includes a cooling coil 11, a volute 10, a first support 7 and a second support 12, the first support 7 is fixedly connected to the top end of the front cover 1, the second support 12 is fixedly connected to the bottom end of the front cover 1, the end of the second support 12 is fixedly connected to the bottom end of the cooling coil 11, the end of the first support 7 is fixedly connected to the top end of the cooling coil 11, and the volute 10 is installed in the middle of the cooling coil 11.

Further, through first connecting pipe 6 intercommunication between cooling coil 11's top and the cooling chamber 5, communicate through second connecting pipe 13 between cooling coil 11's bottom and the cooling chamber 5, make cooling coil 11 and cooling chamber 5 carry out the intercommunication of coolant liquid, make coolant liquid between the two can circulate, during the use, the heat that coolant liquid in the cooling chamber 5 produced stator housing 2 absorbs, and cool down through cooling coil 11, so circulate, the realization is to stator housing 2's cooling.

Further, the spiral blade 16 is rotatably connected to the inside of the volute 10, the end of the rotor 8 is fixedly connected with the spiral blade 16, and the spiral blade 16 is driven to rotate through the rotor 8, so that the cooling liquid in the cooling coil 11 and the cooling liquid in the cooling cavity 5 are driven to circulate, and the temperature of the stator housing 2 is reduced.

Furthermore, a water inlet valve 15 is installed at the top end of the cooling cavity 5, and a water discharge valve 14 is installed at the bottom end of the cooling cavity 5, so that the cooling liquid is replaced, the deterioration of the cooling liquid is avoided, and a better cooling effect is provided.

Further, the shape of the cooling coil 11 is set to be circular, and the diameter of the cooling coil 11 is equal to that of the fan blades 9, so that wind power generated when the fan blades 9 rotate can comprehensively cool the cooling coil 11, and cooling efficiency is improved.

When the cooling device is used, the heat of the motor is dissipated by a water cooling and air cooling combined mode, when the cooling device is used, the rotor 8 of the motor continuously rotates, the rotor 8 drives the fan blades 9 and the spiral blades 16 inside the volute 10 to rotate, the fan blades 9 rotate to generate wind power to extract heat inside the motor, meanwhile, the spiral blades 16 drive cooling liquid inside the cooling coil 11 to continuously flow when rotating, the cooling liquid in the cooling coil 11 is continuously and circularly exchanged with the cooling liquid in the cooling cavity 5 through the first connecting pipe 6 and the second connecting pipe 13, the wind power generated by the rotation of the fan blades 9 cools the cooling liquid through the cooling coil 11, so that the temperature of the cooling liquid is reduced, and the stator shell 2 is better cooled, each part of the motor is cooled by the wind power and water cooling combined mode, so that the temperature of the motor can be more effectively reduced, the motor can run more stably.

The above description is only a preferred embodiment of the present invention, and it is not intended to limit the scope of the present invention, and various modifications and changes may be made by those skilled in the art. Variations, modifications, substitutions, integrations and parameter changes of the embodiments may be made without departing from the principle and spirit of the utility model, which may be within the spirit and principle of the utility model, by conventional substitution or may realize the same function.

Claims

1. The utility model provides a good heat dissipation's permanent magnetism has brush direct current motor which characterized in that: including protecgulum (1), stator casing (2), hou gai (3), flywheel (4), rotor (8) and heat dissipation mechanism, the both ends of reservation stator casing (2) are installed respectively to protecgulum (1) and hou gai (3), install in the inside of stator casing (2) rotor (8), the both ends of rotor (8) extend to the outside and fixedly connected with flabellum (9) and flywheel (4) of protecgulum (1) and hou gai (3) respectively, heat dissipation mechanism installs in the outside of protecgulum (1).

2. A permanent magnet brush dc motor having good heat dissipation according to claim 1, wherein: the outer wall of the stator shell (2) is double-layered, and the outer wall of the stator shell (2) is provided with a cooling cavity (5).

3. A permanent magnet brush dc motor having good heat dissipation according to claim 1, wherein: the heat dissipation mechanism comprises a cooling coil (11), a volute (10), a first support (7) and a second support (12), the first support (7) is fixedly connected to the top end of the front cover (1), the bottom end of the second support (12) is fixedly connected with the bottom end of the front cover (1), the tail end of the second support (12) is fixedly connected with the bottom end of the cooling coil (11), the tail end of the first support (7) is fixedly connected with the top end of the cooling coil (11), and the volute (10) is installed in the middle of the cooling coil (11).

4. A permanent magnet brush dc motor having good heat dissipation according to claim 3, wherein: the top of cooling coil (11) and cooling chamber (5) are linked together through first connecting pipe (6), the bottom of cooling coil (11) and cooling chamber (5) are linked together through second connecting pipe (13).

5. A permanent magnet brush dc motor having good heat dissipation according to claim 3, wherein: the spiral shell (10) is connected with a spiral blade (16) in a rotating mode, and the tail end of the rotor (8) is fixedly connected with the spiral blade (16).

6. A permanent magnet brush dc motor having good heat dissipation according to claim 2, wherein: a water inlet valve (15) is installed at the top end of the cooling cavity (5), and a drain valve (14) is installed at the bottom end of the cooling cavity (5).

7. A permanent magnet brush dc motor having good heat dissipation according to claim 3, wherein: the shape of the cooling coil (11) is circular, and the diameter of the cooling coil (11) is equal to that of the fan blades (9).