A heat-dissipating micro motor housing

Abstract

The utility model provides a heat dissipation type micro motor's casing belongs to micro motor casing technical field, including motor assembly and heat dissipation subassembly, motor assembly includes casing, and the tail end of casing is installed with end cover, the utility model: install the fan in the one end of rotating shaft, and the top edge of casing is surrounded and is opened with side air inlet hole, and the surface of end cover is opened with tail air inlet hole, when the fan is driven external airflow to pass side air inlet hole and tail air inlet hole and enters the inside of casing simultaneously when rotating with rotating shaft, and the outer wall of stator is equipped with a plurality of heat pipes, and after the heat of motor inside is transferred to the inside of heat pipe, the heat dissipation fin of heat pipe surface absorbs heat pipe heat, and after the airflow enters from side air inlet hole, passes the surface of heat dissipation fin, and the air inlet of tail air inlet hole passes through rotor and carries away heat quickly, and the airflow is exhausted through the heat dissipation hole of casing front end, so that the heat dissipation of motor is completed, and the heat dissipation of the effective improvement to motor heat dissipation efficiency is accelerated through the heat dissipation mode of initiative drive airflow.

Description

Technical Field

[0001] This utility model relates to the field of micro motor housing technology, specifically a heat-dissipating micro motor housing. Background Technology

[0002] Micro motors, also known as miniature motors, are motors with a diameter of less than 160mm or a rated power of less than 750mW. They are commonly used in control systems or transmission machinery loads to perform functions such as detection, analysis, amplification, execution, or conversion of electromechanical signals or energy. The main body of a micro motor includes a housing, inside which a rotating shaft is rotatably connected. A rotor is mounted on the shaft, and a permanent magnet is mounted on the outside of the rotor. A stator is mounted on the outside of the permanent magnet. Currently, most micro motors rely on ventilation holes on the housing to dissipate heat and prevent overheating damage. However, because the airflow passively enters the housing, the airflow velocity is relatively slow, resulting in poor heat dissipation and hindering the improvement of heat dissipation efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a heat-dissipating housing for a micro motor to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a housing for a heat-dissipating micro motor, comprising a motor assembly and a heat dissipation assembly; Wherein: the motor assembly includes a housing, an end cap is installed at the tail end of the housing, a stator is installed on the inner wall of the housing, a rotor is rotatably provided in the middle of the stator, a rotating shaft is installed in the middle of the rotor, and the rotating shaft rotatably passes through the middle of the housing; The heat dissipation assembly includes a fan fixedly mounted on one end of the shaft. The top edge of the housing is provided with several side air intake holes. The surface of the end cover is provided with several tail air intake holes. The front end of the housing is provided with heat dissipation holes. The outer wall of the stator is provided with multiple heat pipes at intervals. The front ends of the multiple heat pipes are connected to heat dissipation fins, and the heat dissipation fins correspond to the side air intake holes.

[0005] As a preferred embodiment of this utility model: a mounting bracket is installed on the inner side of the end cap, a mounting hole is opened in the middle of the mounting bracket, a filter screen is installed inside the mounting hole, and the filter screen corresponds to the tail air inlet.

[0006] As a preferred embodiment of this utility model: two locking blocks are symmetrically connected to the inner surface of the end cap, and the mounting bracket has locking grooves on both sides of its edge, with the locking blocks embedded in the locking grooves.

[0007] As a preferred embodiment of this utility model: a fixing seat is installed at the bottom of the housing, and bolt holes are provided on both sides of the fixing seat.

[0008] As a preferred embodiment of this utility model, the heat dissipation fins are made of aluminum.

[0009] As a preferred embodiment of this utility model, wiring terminals are fixedly connected to both sides of the surface of the end cap.

[0010] Compared with the prior art, the beneficial effects of this utility model are: (1) A fan is installed at one end of the shaft. A side air inlet is opened around the top edge of the housing, and a tail air inlet is opened on the surface of the end cover. When the fan rotates with the shaft, it drives the external airflow to enter the housing through the side air inlet and the tail air inlet at the same time. Multiple heat pipes are spaced apart on the outer wall of the stator. After the heat inside the motor is transferred to the heat pipes, the heat dissipation fins on the surface of the heat pipes absorb the heat from the heat pipes. The airflow enters from the side air inlet and passes through the surface of the heat dissipation fins. At the same time, the air inlet at the tail air inlet quickly passes through the rotor and carries away the heat. The airflow is discharged through the heat dissipation hole at the front end of the housing, thus completing the heat dissipation of the motor. By actively driving the airflow to dissipate heat, the heat dissipation efficiency of the motor is effectively improved. (2) An end cover is installed at the tail end of the housing. A stator is installed inside the housing. The rotor is inserted in the middle of the stator and is installed in the middle of the housing by rotating through the shaft. When the terminal on the end cover surface is connected to the power supply, the rotor drives the shaft to rotate, thereby realizing the operation of the motor. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the motor assembly structure of this utility model; Figure 3 This is a schematic diagram of the heat dissipation component structure of this utility model; Figure 4 This is a schematic diagram of the mounting structure of the mounting bracket of this utility model.

[0012] In the diagram: 1. Motor assembly; 101. Housing; 102. End cover; 103. Stator; 104. Rotor; 105. Shaft; 2. Heat dissipation assembly; 21. Fan; 22. Side air intake; 23. Rear air intake; 24. Heat dissipation hole; 25. Heat pipe; 26. Heat dissipation fins; 3. Mounting bracket; 4. Mounting hole; 5. Filter screen; 6. Locking block; 7. Locking slot; 8. Mounting base; 9. Bolt hole; 10. Terminal. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] Please see Figures 1-4 A heat-dissipating micro motor housing includes: a motor assembly 1 and a heat dissipation assembly 2; Please see Figure 1 , Figure 2 The motor assembly 1 includes a housing 101, an end cover 102 is installed at the tail end of the housing 101, a stator 103 is installed on the inner wall of the housing 101, a rotor 104 is rotatably provided in the middle of the stator 103, a rotating shaft 105 is installed in the middle of the rotor 104, and the rotating shaft 105 rotatably passes through the middle of the housing 101. Terminals 10 are fixedly connected to both sides of the surface of the end cover 102.

[0015] In practical use: an end cover 102 is installed at the tail end of the housing 101, a stator 103 is installed inside the housing 101, and a rotor 104 is inserted in the middle of the stator 103 and is rotatably installed in the middle of the housing 101 via a rotating shaft 105. When the wiring terminal 10 on the surface of the end cover 102 is connected to the power supply, the rotor 104 drives the rotating shaft 105 to rotate, thereby realizing the operation of the motor.

[0016] Please see Figure 1 , Figure 3 The heat dissipation assembly 2 includes a fan 21 fixedly installed at one end of the shaft 105. The top edge of the housing 101 is provided with several side air inlets 22. The surface of the end cover 102 is provided with several tail air inlets 23. The front end of the housing 101 is provided with heat dissipation holes 24. The outer wall of the stator 103 is provided with multiple heat pipes 25 at intervals. The front ends of the multiple heat pipes 25 are connected to heat dissipation fins 26, and the heat dissipation fins 26 correspond to the side air inlets 22.

[0017] In practical use: A fan 21 is installed at one end of the shaft 105. A side air inlet 22 is opened around the top edge of the housing 101, and a tail air inlet 23 is opened on the surface of the end cover 102. When the fan 21 rotates with the shaft 105, it drives the external airflow to enter the housing 101 through the side air inlet 22 and the tail air inlet 23. Multiple heat pipes 25 are spaced apart on the outer wall of the stator 103. After the heat inside the motor is transferred to the heat pipes 25, the heat dissipation fins 26 on the surface of the heat pipes 25 absorb the heat from the heat pipes 25. After the airflow enters from the side air inlet 22, it carries away the heat through the surface of the heat dissipation fins 26. At the same time, the air intake from the tail air inlet 23 quickly passes through the rotor 104 and carries away the heat. The airflow is discharged through the heat dissipation hole 24 at the front end of the housing 101, thus completing the heat dissipation of the motor. By actively driving the airflow to dissipate heat, the heat dissipation is accelerated, effectively improving the heat dissipation efficiency of the motor.

[0018] Please see Figure 2 , Figure 4 An installation bracket 3 is installed on the inner side of the end cap 102. An installation hole 4 is opened in the middle of the installation bracket 3. A filter screen 5 is installed inside the installation hole 4. The filter screen 5 corresponds to the tail air inlet 23.

[0019] In practical use: A mounting bracket 3 is installed on the inner side of the end cover 102. The mounting bracket 3 has a mounting hole 4 in the middle. The filter screen 5 is installed inside the mounting hole 4. When the fan 21 drives the airflow into the end cover 102, the airflow is filtered by the filter screen 5, which reduces the dust particles in the airflow and prevents dust from entering the motor and affecting heat dissipation after long-term use.

[0020] Please see Figure 4 Two locking blocks 6 are symmetrically connected to the inner surface of the end cap 102. The mounting bracket 3 has slots 7 on both sides of its edge, and the locking blocks 6 are embedded in the slots 7.

[0021] In practical use: Two locking blocks 6 are symmetrically installed on the inner surface of the end cap 102, and the mounting frame 3 has slots 7 on both sides of its edge. The end cap 102 is engaged in the slots 7 on the edge of the mounting frame 3 by the locking blocks 6, so that the mounting frame 3 can be disassembled, which facilitates the replacement and cleaning of the filter screen 5.

[0022] Please see Figure 1 , Figure 2 A mounting base 8 is installed at the bottom of the housing 101, and bolt holes 9 are provided on both sides of the mounting base 8.

[0023] In practical use: a fixing seat 8 is installed at the bottom of the housing 101, and bolt holes 9 are opened on the surface of the fixing seat 8. The housing 101 can be easily installed on the surface of the object through the bolt holes 9 on the surface of the fixing seat 8.

[0024] Please see Figure 3 The heat dissipation fins 26 are made of aluminum.

[0025] In practical use: The heat dissipation fins 26 are made of aluminum, which meets the heat dissipation requirements of the motor while reducing production costs.

[0026] A fan 21 is installed at one end of the shaft 105. A side air intake 22 is provided around the top edge of the housing 101, and a rear air intake 23 is provided on the surface of the end cover 102. When the fan 21 rotates with the shaft 105, it drives external airflow to enter the housing 101 through the side air intake 22 and the rear air intake 23. Multiple heat pipes 25 are spaced apart on the outer wall of the stator 103. After the heat inside the motor is transferred to the heat pipes 25, the heat dissipation fins 26 on the surface of the heat pipes 25 absorb the heat from the heat pipes 25, and the airflow enters through the side air intake 22. The heat is then carried away by the surface of the heat dissipation fins 26, while the air intake 23 at the rear quickly passes through the rotor 104 to carry away the heat. The airflow is discharged through the heat dissipation pores 24 at the front end of the housing 101, thus completing the heat dissipation of the motor. The active airflow method accelerates the heat dissipation and effectively improves the heat dissipation efficiency of the motor. When the fan 21 drives the airflow into the end cover 102, it passes through the filter screen 5 to filter the airflow, thereby reducing dust particles in the airflow and preventing dust from entering the motor and affecting heat dissipation after long-term use.

[0027] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A housing for a heat-dissipating micro motor, characterized in that, include: The motor assembly (1) includes a housing (101), an end cap (102) is installed at the tail end of the housing (101), a stator (103) is installed on the inner wall of the housing (101), a rotor (104) is rotatably provided in the middle of the stator (103), and a rotating shaft (105) is installed in the middle of the rotor (104), the rotating shaft (105) rotatably passing through the middle of the housing (101); The heat dissipation assembly (2) includes a fan (21) fixedly installed at one end of the rotating shaft (105). The top edge of the housing (101) is provided with several side air inlets (22). The surface of the end cover (102) is provided with several tail air inlets (23). The front end of the housing (101) is provided with heat dissipation holes (24). The outer wall of the stator (103) is provided with multiple heat pipes (25) spaced apart. The front ends of the multiple heat pipes (25) are connected to heat dissipation fins (26). The heat dissipation fins (26) correspond to the side air inlets (22).

2. The housing of a heat-dissipating micro motor according to claim 1, characterized in that: An mounting bracket (3) is installed on the inner side of the end cap (102). An installation hole (4) is provided in the middle of the mounting bracket (3). A filter screen (5) is installed inside the installation hole (4). The filter screen (5) corresponds to the tail air inlet (23).

3. The housing of a heat-dissipating micro motor according to claim 2, characterized in that: The inner surface of the end cap (102) is symmetrically connected with two locking blocks (6), and the mounting bracket (3) has slots (7) on both sides of its edge, with the locking blocks (6) embedded in the slots (7).

4. The housing of a heat-dissipating micro motor according to claim 1, characterized in that: A fixing seat (8) is installed at the bottom of the housing (101), and bolt holes (9) are provided on both sides of the fixing seat (8).

5. The housing of a heat-dissipating micro motor according to claim 1, characterized in that: The heat dissipation fins (26) are made of aluminum.

6. The housing of a heat-dissipating micro motor according to claim 1, characterized in that: Terminals (10) are fixedly connected to both sides of the surface of the end cap (102).

Images