CN217769764U - Linear motor radiator and linear motor - Google Patents

Abstract

The embodiment of the application belongs to the field of transmission motors, and relates to a linear motor radiator, which comprises: the heat conduction device comprises a heat conduction base, a heat conduction pipe, a cooling fin and a fan which are sequentially arranged, wherein the heat conduction base is connected with a motor coil component of the linear motor, the bottom and the top of the heat conduction pipe are respectively connected with the heat conduction base and the cooling fin, the fan is arranged on the cooling fin, and phase change cooling liquid is arranged in the heat conduction pipe. The application also relates to a linear motor. The application provides a technical scheme can carry out high-efficient heat dissipation to linear motor.

Description

Linear motor radiator and linear motor

Technical Field

The application relates to the technical field of transmission motors, in particular to a linear motor radiator and a linear motor.

Background

A permanent magnet linear motor is a very widely used type of electric machine. Linear motors are generally classified into two types: moving magnet motors and moving coil motors. In order to obtain a large thrust, moving magnet type linear motors are widely used.

At present, the cooling mode of the moving magnet linear motor in the industry is mainly to cool the high-temperature part of the motor by using a fan or a compressed air source, and take away the heat of the high-temperature area (especially a coil) of the motor by accelerating the air flow (heat convection).

However, since the heat dissipation area of the coil itself is limited, and the convection heat transfer coefficient of the material of the coil assembly is usually not high, the direct air cooling on the surface of the coil is not enough to effectively dissipate the heat of the coil, so that the coil still generates a high temperature. The high temperature limits the magnitude of the current applied to the motor, so that the thrust constant of the motor cannot be increased, i.e., the motor cannot obtain a large thrust.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the embodiment of the application is how to efficiently dissipate heat of a linear motor.

In order to solve the above technical problem, an embodiment of the present application provides a linear motor heat dissipation device, which adopts the following technical solutions:

the linear motor heat sink includes: the heat conduction device comprises a heat conduction base, a heat conduction pipe, a cooling fin and a fan which are sequentially arranged, wherein the heat conduction base is connected with a motor coil component of the linear motor, the bottom and the top of the heat conduction pipe are respectively connected with the heat conduction base and the cooling fin, the fan is arranged on the cooling fin, and phase change cooling liquid is arranged in the heat conduction pipe.

Further, the motor coil assembly comprises a silicon steel sheet and a coil, the coil is arranged on the silicon steel sheet, and the heat transfer base is connected with the silicon steel sheet.

Further, the motor coil assembly includes a coil, and the heat transfer base is connected to the coil.

Further, the fan is a fan.

Further, the fan is arranged on the top or the side of the radiating fin.

Further, the fan is an air compressor.

Further, the heat sink is a fin heat sink.

Further, the material of the heat sink is copper.

Further, the phase-change cooling liquid is made of fluorocarbon cooling liquid.

In order to solve the above technical problem, an embodiment of the present application further provides a linear motor, which adopts the following technical solutions:

the linear motor includes: a linear motor heat sink.

Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:

through setting up the linear motor radiator, replace the mode that only carries out the forced air cooling to the coil among the prior art, improved linear motor's radiating efficiency effectively for linear motor can keep lower temperature at the during operation, consequently, linear motor can let in bigger electric current and export bigger thrust.

Drawings

In order to illustrate the present application or prior art more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

FIG. 1 is a schematic structural diagram of a linear motor heat sink according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a linear motor according to an embodiment of the present application;

reference numerals: heat transfer base 1, heat pipe 2, fin 3, fan 4, motor coil assembly 5, first motor coil assembly 51, second motor coil assembly 52, active cell 6, motor cover 7, motor base 8, motor cover 9.

Detailed Description

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 in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

Example one

Referring to fig. 1, the heat sink device for linear motor of the present application includes: the heat conduction device comprises a heat conduction base 1, a heat conduction pipe 2, a radiating fin 3 and a fan 4 which are sequentially arranged, wherein the heat conduction base 1 is connected with a motor coil component 5 of a linear motor, the bottom and the top of the heat conduction pipe 2 are respectively connected with the heat conduction base 1 and the radiating fin 3, the fan 4 is arranged on the radiating fin 3, and phase-change cooling liquid is arranged in the heat conduction pipe 2.

After the linear motor works, a large amount of heat is generated by a motor coil assembly 5 of the linear motor, the heat transfer base 1 is connected with the motor coil assembly 5 and used for absorbing the heat generated by the motor coil assembly 5 to complete first heat exchange, the phase-change cooling liquid in the heat conduction pipe 2 absorbs the heat absorbed by the heat transfer base 1, the temperature of the phase-change cooling liquid at the bottom of the heat conduction pipe 2 rises and is converted from a liquid state to a gaseous state, a local high pressure is formed at the lower end of the heat conduction pipe 2, the high pressure pushes the gaseous phase-change cooling liquid to rise in the heat conduction pipe 2 and rise to the top of the heat conduction pipe 2 to complete second heat exchange, the top of the heat conduction pipe 2 is connected with the radiating fins 3, therefore, heat exchange is carried out between the gaseous phase-change cooling liquid and the radiating fins 3, when the gaseous phase-change cooling liquid meets the radiating fins 3 with lower temperature, the heat is released, the heat is transferred to the radiating fins 3 to complete third heat exchange, the temperature rise of the radiating fins 3 at the moment, the liquefied phase-change cooling liquid flows back to the bottom of the heat conduction pipe 2 along the pipe wall of the heat conduction pipe 2 due to the gravity, and the fan 4 is used for accelerating air convection, and the radiating effect of the radiating fins 3 is increased.

The heat exchange and phase change processes are circularly repeated, so that the heat generated by the motor coil assembly can be continuously transferred to the radiating fins 3, and continuous and efficient cooling is realized.

It should be noted that, in the present application, the phase-change heat transfer mode is adopted, the position where the phase-change coolant absorbs heat and gasifies is located at the position of the heat transfer base 1, and the position where the heat is released and liquefied is located at the position of the heat sink 3, so that the position of the heat sink 3 must be higher than that of the heat transfer base 1, but the heat sink does not need to be arranged completely vertically, thereby allowing the position of the heat sink 3 to have a certain angular offset relative to the heat transfer base 1.

Through setting up the linear motor radiator, replace the mode that only carries out the forced air cooling to the coil among the prior art, improved linear motor's radiating efficiency effectively for linear motor can keep lower temperature at the during operation, consequently, linear motor can let in bigger electric current and export bigger thrust.

In this application embodiment, motor coil assembly 5 includes silicon steel sheet and coil, the coil set up in the silicon steel sheet, the heat transfer base is connected the silicon steel sheet.

Heat conduction glue is coated between the heat transfer base 1 and the silicon steel sheet to increase the heat transfer effect, and the heat transfer base 1 absorbs heat generated by the coil through the silicon steel sheet. The heat transfer base 1 is made of copper, and copper has a good heat conduction effect, so that the heat dissipation efficiency of the heat dissipation device can be improved.

In other embodiments of the present application, the motor coil assembly includes a coil, and the heat transfer mount is coupled to the coil.

Motor coil assembly 5 includes the coil but does not have the silicon steel sheet, and heat transfer base 1 is direct to be contacted with the coil, therefore heat transfer base 1 is direct can carry out the heat exchange with the coil, compares and sets up the silicon steel sheet and carries out the heat transfer, and the heat transfer effect of heat transfer base 1 direct connection coil is better.

In the embodiment of the present application, the fan 4 is a fan.

The fan is used for accelerating the airflow flow and further accelerating the heat dissipation effect of the heat dissipation fins 3, and the fan has the advantages of low cost, low power consumption, stable working state and the like.

In the embodiment of the present application, the fan 4 is disposed on the top or the side of the heat sink 3.

The fan 4 may be disposed on the top of the heat sink 3 or on the side of the heat sink 3, and the heat dissipation mode may be an air suction mode (an air inlet of the fan 4 faces the heat sink 3) or an air blowing mode (an air outlet of the fan 4 faces the heat sink) 3.

Wherein, set up fan 4 at the top of fin 3 to fan 4's income wind gap is towards fin 3, and fan 4 absorbs the air current near fin 3, and fan 4 adopts the formula of blowing of formula of induced drafting to compare, and the air current flows more steadily, and the radiating effect is better. The fan 4 is arranged on the top of the heat sink 3, and the fan 4 has a better heat dissipation effect than the fan 4 is arranged on the side of the heat sink 3 or other positions.

In the embodiment of the present application, the fan 4 is an air compressor.

The air compressor can compress air flow and then deliver the air flow to the radiating fins 3, so that the air compressor can generate more intense air flow in the same time, and the radiating fins 3 are promoted to radiate heat better.

In the present embodiment, the heat sink 3 is a fin heat sink.

In the embodiment of the present application, the material of the heat sink 3 is copper.

Copper has better heat conduction effect, and fin 3 adopts the copper product matter, consequently can promote the radiating efficiency of this application.

Compared with the common sheet-shaped radiating fin, the fin radiating fin has larger radiating area and better radiating effect.

In the embodiment of the present application, the material of the phase-change coolant is fluorocarbon coolant.

In other embodiments of the present application, the material of the phase-change coolant may also include, but is not limited to, ammonia, acetone, methanol, toluene, water, etc., and may be changed from a liquid state to a gaseous state by the temperature change of the motor coil assembly 5.

Example two

Referring to fig. 2, the linear motor of the present application includes: a linear motor heat sink.

In the embodiment of the present application, the motor coil assembly 5 includes a first motor coil assembly 51, a second motor coil assembly 52, a mover 6, a motor cover 7, a motor base 8, and a motor cover plate 9; the mover 6 is disposed between the first motor coil assembly 51 and the second motor coil assembly 52, the first motor coil assembly 51 and the second motor coil assembly 52 are disposed on the motor cover 7, the motor cover 7 is used for fixing the first motor coil assembly 51 and the second motor coil assembly 52, the motor cover 7 is disposed on the motor base 8, and the motor base 8 is disposed on the motor cover plate 9.

The linear motor is provided with the linear motor radiator, so that the radiating efficiency of the linear motor can be effectively improved, the linear motor can keep a lower temperature during working, and the linear motor can be supplied with higher current and output higher thrust.

In the embodiment of the present application, the motor coil assemblies 5 are divided into two groups, which are the first motor coil assembly 51 and the second motor coil assembly 52, the heat transfer base 1 and the heat conduction pipe 2 are also divided into two groups, which are connected to the first motor coil assembly 51 and the second motor coil assembly 52, respectively, the heat transfer base 1 on the first motor coil assembly 51 is disposed on the upper end face of the first motor coil assembly 51, the heat transfer base 1 on the second motor coil assembly 52 is disposed on the lower end face of the second motor coil assembly 52, and heat generated by the first motor coil assembly 51 and the second motor coil assembly 52 is transferred to the same heat sink 3 for heat dissipation.

In other embodiments of the present application, the linear motor heat sink may be two sets and respectively dissipate the heat of the first motor coil assembly 51 and the second motor coil assembly 52, that is, the first motor coil assembly 51 and the second motor coil assembly 52 are respectively dissipated by different heat dissipation fins 3.

It should be understood that the above-described embodiments are merely exemplary of some, and not all, embodiments of the present application, and that the drawings illustrate preferred embodiments of the present application without limiting the scope of the claims appended hereto. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields, and all the equivalent structures are within the protection scope of the present application.

Claims (10)

1. A linear motor heat sink, comprising: the heat transfer base is connected with a motor coil component of the linear motor, the bottom and the top of the heat transfer pipe are respectively connected with the heat transfer base and the radiating fins, the fan is arranged on the radiating fins, and phase-change cooling liquid is arranged in the heat transfer pipe.

2. The linear motor heat sink as claimed in claim 1, wherein the motor coil assembly comprises a silicon steel sheet and a coil, the coil is disposed on the silicon steel sheet, and the heat transfer base is connected to the silicon steel sheet.

3. The linear motor heat sink of claim 1, wherein the motor coil assembly includes a coil, the heat transfer mount connecting the coil.

4. The linear motor heat sink of claim 1, wherein the fan is a fan.

5. The linear motor heat sink of claim 4, wherein the fan is disposed on a top or side of the heat sink.

6. The linear motor heat sink of claim 1, wherein the fan is an air compressor.

7. The linear motor heat sink of claim 1, wherein the fins are fin fins.

8. The linear motor heat sink of claim 1, wherein the material of the fins is copper.

9. The linear motor heat sink of claim 1, wherein the phase change coolant is a fluorocarbon coolant.

10. A linear electric motor comprising a linear motor heat sink according to any one of claims 1 to 9.

Images