Quick heat dissipation type fan

Abstract

The utility model relates to a rapid heat dissipation type fan which comprises a motor, a fixed impeller assembly and a movable impeller assembly. The motor comprises a motor shell, a stator, a rotor and a motor rotating shaft, one end of the motor rotating shaft extends out of the motor shell to be connected with an impeller of the movable impeller assembly, the rotor is connected with the motor rotating shaft, and the end, close to two end covers of the motor, of the motor rotating shaft is connected with a first cooling fan and a second cooling fan. A plurality of buckle assemblies are arranged between the first cooling fan and the motor rotating shaft and between the second cooling fan and the motor rotating shaft and used for connecting the first cooling fan and the second cooling fan to the motor rotating shaft. According to the rapid heat dissipation type fan, the upper end and the lower end of the rotor shaft of the motor are respectively and fixedly provided with one heat dissipation fan, the air fluidity in the motor shell is improved through the heat dissipation fans, so that the stator and the rotor are rapidly cooled, the temperature of the motor is rapidly reduced through a multiple heat dissipation mode, and the service life of the motor is prolonged. Therefore, the working efficiency of the motor is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a fast heat dissipation fan. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and deliver gas. It is a driven fluid machine. Fan is a customary abbreviation for gas compression and gas delivery machinery in China. The fans usually mentioned include ventilators, blowers, and wind turbines. The structure of a fan usually includes a wind tube, a motor, and an impeller. The motor drives the impeller to rotate, and the rotation of the impeller drives the flow of air, thereby achieving the purpose of ventilation.

[0003] The quality of the fan mainly depends on the performance of the motor. The motor generates heat when working. The motor is easily damaged if it runs at high temperature for a long time, which is not conducive to extending the service life of the motor, and thus not conducive to extending the service life of the fan. Therefore, how to effectively dissipate the heat of the motor is a common problem for technicians in this field. Utility Model Content

[0004] To this end, the technical problem to be solved by the utility model is to overcome the problem in the prior art that when the fan is working, the driving motor generates a large amount of heat, and when the heat cannot be dissipated in time, it will affect the working efficiency of the motor, and even when the high temperature time is too long, the motor is prone to damage.

[0005] To solve the above technical problems, the utility model provides a fast heat dissipation fan, comprising: a motor, a stator impeller assembly and a movable impeller assembly, wherein the stator impeller assembly is fixedly arranged on the outer wall of one end of the motor; the motor comprises: a motor housing, a stator, a rotor and a motor shaft, one end of the motor shaft extends out of the motor housing and is connected to the movable impeller of the movable impeller assembly, the motor shaft is located in the motor housing and is respectively connected to a first heat dissipation fan and a second heat dissipation fan at positions on both sides of the rotor, a plurality of buckle assemblies are arranged between the first heat dissipation fan and the motor shaft, and between the second heat dissipation fan and the motor shaft, and the buckle assemblies are used to connect the first heat dissipation fan and the second heat dissipation fan to the motor shaft.

[0006] In one embodiment of the utility model, the buckle assembly includes a positioning block and a spring, a plurality of positioning holes are opened on the outer wall of the motor shaft, the spring is arranged in the positioning hole, one end of the spring is connected to the inner wall of the positioning hole, and the other end of the spring is connected to the positioning block, and the positioning block is connected to the first cooling fan and the second cooling fan.

[0007] In one embodiment of the utility model, a positioning groove is provided on the inner wall of the first cooling fan and the second cooling fan close to the motor shaft, and one end of the positioning block extending out of the positioning hole is inserted into the positioning groove.

[0008] In one embodiment of the utility model, a rubber cover is connected to one end of the motor housing away from the stator impeller assembly, a circuit board is provided in the cavity between the rubber cover and the motor housing, and a surface of the circuit board is coated with thermal grease, which is used for heat dissipation of the circuit board.

[0009] In one embodiment of the utility model, a plurality of heat dissipation fins are provided on the outer wall of the motor housing, and the plurality of heat dissipation fins are arranged in a circular array with the center of the motor housing as the center of the circle.

[0010] In one embodiment of the present invention, the stator impeller assembly includes a stator impeller cover and a stator impeller blade.

[0011] In one embodiment of the utility model, an air outlet is provided on the stator wheel cover.

[0012] In one embodiment of the present invention, the impeller assembly includes an impeller cover and an impeller.

[0013] In one embodiment of the utility model, an air inlet is provided at one end of the impeller cover away from the stator impeller cover.

[0014] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0015] The fast heat dissipation fan described in the utility model has a heat dissipation fan fixedly installed on the upper and lower ends of the rotor shaft of the motor. The heat dissipation fan improves the air flow inside the motor casing, thereby quickly cooling the stator and the rotor. The temperature of the motor is quickly reduced through multiple heat dissipation methods, thereby ensuring the working efficiency of the motor.

[0016] By arranging a plurality of cooling fins on the surface of the motor housing, the contact area between the motor housing and the air is increased, thereby improving the heat dissipation capacity. At the same time, the wind discharged by the stator impeller assembly can further improve the heat exchange capacity on the cooling fins, thereby further improving the heat dissipation capacity.

[0017] The surface of the circuit board is coated with thermal grease, and the thermal grease is in contact with the motor housing. The thermal grease allows the heat of the heat dissipating circuit board to be more quickly directed to the motor housing, thereby quickly reducing the temperature of the circuit board and improving the working efficiency of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0019] Figure 1This is a schematic diagram of the appearance structure of a fast heat dissipation fan in a preferred embodiment of the utility model;

[0020] Figure 2 It is a cross-sectional view of a fast heat dissipation type fan in a preferred embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the buckle assembly in the preferred embodiment of the utility model.

[0022] Explanation of the reference numerals in the specification: motor 100, stator impeller assembly 200, stator impeller cover 201, stator impeller blade 202, air outlet 203, impeller assembly 300, impeller cover 301, impeller 302, air inlet 303, motor housing 1, cooling fins 11, stator 2, rotor 3, motor shaft 4, positioning holes 41, first cooling fan 5, positioning groove 51, second cooling fan 6, buckle assembly 7, positioning block 71, spring 72, rubber cover 8, circuit board 81. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0024] Reference Figure 1 , 2 As shown, the fast heat dissipation fan of the utility model comprises: a motor 100, a fixed impeller assembly 200 and a movable impeller assembly 300 connected to the fixed impeller assembly 200, wherein the fixed impeller assembly 200 is fixedly arranged on the outer wall of one end of the motor 100, the movable impeller cover 301 of the movable impeller assembly 300 is connected to the fixed impeller assembly 200, and the movable impeller 302 of the movable impeller assembly 300 is connected to the motor shaft 4 of the motor 100, and is driven to rotate by the motor shaft 4;

[0025] The motor 100 includes: a motor housing 1, a stator 2, a rotor 3 and a motor shaft 4, wherein the stator 2 is fixedly arranged inside the motor housing 1, the motor shaft 4 is arranged at the central axis position inside the motor housing 1, and one end of the motor shaft 4 extends out of the motor housing 1 and passes through the stator impeller assembly 200 and is connected to the impeller 302 of the impeller assembly 300, the rotor 3 is connected to the motor shaft 4, and the rotor 3 is located inside the stator 2, the motor shaft 4 is located in the motor housing 1 and is respectively connected to the first cooling fan 5 and the second cooling fan 6 at the positions on both sides of the rotor 3, and a plurality of buckle assemblies 7 are arranged between the first cooling fan 5 and the motor shaft 4 and between the second cooling fan 6 and the motor shaft 4, and the buckle assemblies 7 are used to connect the first cooling fan 5 and the second cooling fan 6 to the motor shaft 4.

[0026] Reference Figure 3 As shown, the buckle assembly 7 includes a positioning block 71 and a spring 72. A plurality of positioning holes 41 are opened on the outer wall along the circumferential direction of the motor shaft 4. The spring 72 is fixedly arranged in the positioning hole 41. One end of the spring 72 is connected to the inner wall of the positioning hole 41, and the other end of the spring 72 is connected to the positioning block 71. The positioning block 71 is connected to the first cooling fan 5 and the second cooling fan 6, and the side of the positioning block 71 away from the rotor 3 is set to an arc shape, and the side close to the rotor 3 is set to a right angle, so as to facilitate the insertion of the first cooling fan 5 and the second cooling fan 6 and prevent it from getting loose.

[0027] The first cooling fan 5 and the second cooling fan 6 are provided with a positioning groove 51 for use with the positioning block 71 on the inner wall near the motor shaft 4, and one end of the positioning block 71 extending out of the positioning hole 41 is inserted into the positioning groove 51. The first cooling fan 5 and the second cooling fan 6 are clamped by the clamping structure, and the inner diameter of the first cooling fan 5 and the second cooling fan 6 is the same as the outer diameter of the motor shaft 4, so that they can be quickly installed manually during installation, avoiding the problem in the prior art that the two have an interference fit and must be installed using tooling.

[0028] In the above structure, the end of the motor housing 1 away from the stator impeller assembly 200 is connected to a rubber cover 8, and a circuit board 81 is arranged in the cavity between the rubber cover 8 and the motor housing 1. The surface of the circuit board 81 is coated with thermal conductive silicone grease, and the thermal conductive silicone grease is used for heat dissipation of the circuit board 81. The heat of the heat dissipation circuit board 81 can be directed to the motor housing 1 more quickly through the thermal conductive silicone grease.

[0029] In the above structure, a plurality of heat dissipation fins 11 are provided on the outer wall of the motor housing 1, and the plurality of heat dissipation fins 11 are arranged in a circular array with the center of the motor housing 1 as the center of the circle, and the heat dissipation fins 11 are used for heat dissipation of the motor housing 1. The plurality of heat dissipation fins 11 are provided to increase the contact area between the motor housing and the air, thereby improving the heat dissipation capacity.

[0030] In the above structure, the stator impeller assembly 200 includes an integrally formed stator impeller cover 201 and a stator impeller blade 202. The stator impeller cover 201 is fixed on the outer wall of the motor housing 1 by bolts. The stator impeller blade 202 includes a plurality of stator impeller blades 202 which are arranged circumferentially at intervals inside the stator impeller cover 201 to form an air duct. The stator impeller cover 201 is provided with an air outlet 203 which is connected to the air duct.

[0031] In the above structure, the impeller assembly 300 includes an impeller cover 301 and an impeller 302, one end of the impeller cover 301 is fixedly connected to the stator cover 201 by gluing, the impeller 302 is connected to the end of the motor shaft 4 extending out of the motor housing 1, and the impeller 302 is located in the impeller cover 301. An air inlet 303 is provided at one end of the impeller cover 301 away from the stator cover 201.

[0032] During use, when the motor rotates, the impeller 302 forms a negative pressure in the impeller cover 301, and the air flow is sucked in at high speed through the impeller 302 from the air inlet 303 of the impeller cover 301 and discharged upward, and then enters the stator impeller assembly 200, and is discharged from the air outlet 203 to the motor housing 1 through the guidance of the stator impeller blades 202, and the heat on the motor housing 1 is taken away by the exhaust, thereby further reducing the temperature of the motor 1.

[0033] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A fast heat dissipation fan, characterized in that: It comprises a motor, a fixed impeller assembly and a movable impeller assembly, wherein the fixed impeller assembly is fixedly arranged on the outer wall of one end of the motor; the motor comprises: a motor housing, a stator, a rotor and a motor shaft, one end of the motor shaft extends out of the motor housing and is connected to the movable impeller of the movable impeller assembly, the motor shaft is located in the motor housing and is respectively connected to a first cooling fan and a second cooling fan at positions located on both sides of the rotor, a plurality of buckle assemblies are arranged between the first cooling fan and the motor shaft, and between the second cooling fan and the motor shaft, and the buckle assemblies are used to connect the first cooling fan and the second cooling fan to the motor shaft; The fixed impeller assembly comprises a fixed impeller cover and a fixed impeller blade, and the fixed impeller cover is provided with an air outlet; The impeller assembly comprises an impeller cover and an impeller. An air inlet is arranged at one end of the impeller cover away from the fixed impeller cover.

2. The fast heat dissipation fan according to claim 1, characterized in that: The buckle assembly includes a positioning block and a spring. A plurality of positioning holes are opened on the outer wall of the motor shaft. The spring is arranged in the positioning hole. One end of the spring is connected to the inner wall of the positioning hole, and the other end of the spring is connected to the positioning block. The positioning block is connected to the first cooling fan and the second cooling fan.

3. The fast heat dissipation fan according to claim 2, characterized in that: The first cooling fan and the second cooling fan are provided with positioning grooves on their inner walls close to the motor shafts, and one end of the positioning block extending out of the positioning hole is inserted into the positioning groove.

4. The fast heat dissipation fan according to claim 1, characterized in that: A rubber cover is connected to one end of the motor housing away from the stator impeller assembly, a circuit board is arranged in the cavity between the rubber cover and the motor housing, and a surface of the circuit board is coated with thermal conductive silicone grease, which is used for heat dissipation of the circuit board.

5. The fast heat dissipation fan according to claim 1, characterized in that: A plurality of heat dissipation fins are arranged on the outer wall of the motor housing, and the plurality of heat dissipation fins are arranged in a circular array with the center of the motor housing as the center of the circle.

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