A heat dissipation structure of a motor control

Abstract

The utility model discloses a motor control's heat radiation structure, including controller shell and install inside control circuit board of controller shell, control circuit board with inside fixed mounting of controller shell, the back fixed mounting of controller shell inside has the heat dissipation pipe, the front of heat dissipation pipe integrative second heat conduction board has set up, the outside contact of control circuit board is provided with first heat conduction board, the inside of first heat conduction board is seted up and has the liquid guide pipe, one side fixed mounting of first heat conduction board has with liquid guide pipe one end communication's liquid inlet pipe, first heat conduction board fixed mounting has with liquid guide pipe other end communication's liquid outlet pipe, the inside of second heat conduction board is laid and has the serpentine pipe. By serpentine pipe with second heat conduction board conduction to the heat dissipation fin heat dissipation, and the heat medium of cooling down back flow to liquid guide pipe in liquid inlet pipe will first heat conduction board absorbed heat conduction, further reduce the temperature in the inside of controller shell.

Description

Technical Field

[0001] This utility model relates to the field of motor controller technology, specifically a heat dissipation structure for motor control. Background Technology

[0002] A motor controller is a device used to manage and control the operation of an electric motor. It is commonly used in various applications, including industrial machinery, automobiles, drones, and home appliances. With the widespread use of electrical devices such as motor controllers, rectifiers, and inverters, their importance is increasing. These devices typically contain numerous heat-generating power components that generate significant heat during operation. For example, the high-power IGBTs in a motor controller release a large amount of heat during operation. A rapid rise in IGBT temperature can trigger overheat protection, affecting the normal operation of the motor controller. Therefore, effective heat dissipation for these internal power components is crucial.

[0003] In the existing technology, the heat-generating power devices of electrical devices such as motor controllers, rectifier power supplies and inverter power supplies usually rely on natural heat dissipation. The heat dissipation effect of the heat-generating power devices is poor, and the electrical devices are prone to affecting normal operation or even being damaged due to untimely heat dissipation.

[0004] Therefore, we propose a motor-controlled heat dissipation structure. Utility Model Content

[0005] The purpose of this invention is to provide a heat dissipation structure for motor control to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation structure for motor control, comprising a controller housing and a control circuit board installed inside the controller housing. The control circuit board is fixedly installed inside the controller housing. A heat dissipation pipe is fixedly installed on the back of the controller housing. A second heat-conducting plate is integrally provided on the front of the heat dissipation pipe. A first heat-conducting plate is provided in contact with the outside of the control circuit board. A liquid guide pipe is provided inside the first heat-conducting plate. An inlet pipe connected to one end of the liquid guide pipe is fixedly installed on one side of the first heat-conducting plate. A drain pipe connected to the other end of the liquid guide pipe is fixedly installed on the first heat-conducting plate. A serpentine tube is laid inside the second heat-conducting plate. One end of the serpentine tube is connected to the inlet pipe. A circulation pump is fixedly installed at the other end of the serpentine tube. The other end of the drain pipe is connected to the circulation pump. Heat dissipation fins integrally connected to the second heat-conducting plate are evenly arranged inside the heat dissipation pipe. An exhaust port connected to the heat dissipation pipe is provided at the rear of the controller housing. A cooling fan located below the exhaust port is provided at the rear of the controller housing.

[0007] Optionally, a touch screen is provided on the front of the controller housing, and a protective cover is fixedly installed on the rear of the controller housing above the exhaust port. The protective cover is in the form of a downward-sloping plate, and the lower part of the protective cover is flush with the bottom of the exhaust port.

[0008] Optionally, one end of the drain pipe is fixedly installed to the inlet of the circulation pump, and the outlet of the circulation pump is fixedly installed to one end of the serpentine pipe.

[0009] Optionally, the liquid inlet pipe, liquid guide pipe, liquid outlet pipe, and serpentine pipe are filled with a liquid heat-conducting medium, and the liquid guide pipe is arranged in a serpentine pattern inside the first heat-conducting plate.

[0010] Optionally, the first heat-conducting plate and the second heat-conducting plate are made of the same material, and the heat sink is made of the same material as the second heat-conducting plate. The first heat-conducting plate, the second heat-conducting plate, and the heat sink are all made of aluminum alloy.

[0011] Optionally, the controller housing has a through hole at the rear that is flush with the bottom of the heat sink, the cooling fan is fixedly installed inside the through hole, the controller housing has an intake fan located on one side of the cooling fan, the controller housing has an exhaust fan located on the other side of the exhaust port, and a dustproof net located outside the cooling fan is fixedly installed at the rear of the controller housing.

[0012] Optionally, the adjacent heat sinks are staggered, one side of the heat sink is integrally connected to the second heat-conducting plate, and the other end of the heat sink is in close contact with the inside of the controller housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The heat dissipation structure controlled by this motor uses an intake fan and an exhaust fan to circulate and exchange air inside the controller housing with outside air, thus cooling the inside of the controller housing. A first heat-conducting plate is installed on the outside of the control circuit board, which conducts the heat generated by the control circuit board to the heat-conducting medium inside the liquid guide tube. A circulating pump transports the heat-conducting medium carrying heat through the drain pipe to the serpentine tube, and then the serpentine tube and the second heat-conducting plate conduct the heat to the heat sink for heat dissipation. The cooled heat-conducting medium flows back to the liquid guide tube through the inlet pipe, which conducts the heat absorbed by the first heat-conducting plate away, further reducing the temperature inside the controller housing.

[0015] The heat dissipation structure of this motor control system draws air from outside the controller housing into the heat dissipation pipe by installing a cooling fan at the bottom of the heat dissipation pipe. The air then passes through the staggered heat dissipation fins, allowing the heat on the heat dissipation fins to dissipate into the air and be discharged through the exhaust port at the top of the heat dissipation pipe. The staggered arrangement of the heat dissipation fins increases the airflow path, thus better carrying away the heat from the heat dissipation fins. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a heat dissipation structure for motor control according to this utility model;

[0017] Figure 2 This is a schematic diagram of the controller housing of a heat dissipation structure for motor control according to this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first heat-conducting plate of a heat dissipation structure for motor control according to this utility model;

[0019] Figure 4 This is a schematic diagram of the second heat-conducting plate of a heat dissipation structure for motor control according to this utility model;

[0020] Figure 5 This is a schematic diagram of the heat dissipation pipe of a motor-controlled heat dissipation structure according to the present invention.

[0021] In the diagram: 1. Controller housing; 2. Cooling fan; 3. Exhaust port; 4. Control circuit board; 5. First heat conduction plate; 6. Heat sink; 7. Second heat conduction plate; 8. Liquid inlet pipe; 9. Liquid outlet pipe; 10. Liquid guide pipe; 11. Serpentine tube; 12. Heat sink; 13. Dustproof net; 14. Touch screen; 15. Protective cover; 16. Circulation pump; 17. Intake fan; 18. Exhaust fan. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 5This utility model provides a heat dissipation structure for motor control, including a controller housing 1 and a control circuit board 4 installed inside the controller housing 1. The control circuit board 4 is fixedly installed inside the controller housing 1. A heat dissipation pipe 6 is fixedly installed on the back inside the controller housing 1. A second heat-conducting plate 7 is integrally provided on the front of the heat dissipation pipe 6. A first heat-conducting plate 5 is provided on the outside of the control circuit board 4. A liquid guiding pipe 10 is opened inside the first heat-conducting plate 5. An inlet pipe 8 connected to one end of the liquid guiding pipe 10 is fixedly installed on one side of the first heat-conducting plate 5. Plate 5 is fixedly installed with a drain pipe 9 connected to the other end of the liquid guide pipe 10. The inside of the second heat conduction plate 7 is laid with a serpentine tube 11. One end of the serpentine tube 11 is connected to the liquid inlet pipe 8. The other end of the serpentine tube 11 is fixedly installed with a circulation pump 16. The other end of the drain pipe 9 is connected to the circulation pump 16. Heat sinks 12 that are integrally connected to the second heat conduction plate 7 are evenly arranged inside the heat dissipation pipe 6. The rear of the controller housing 1 is provided with an exhaust port 3 that is connected to the heat dissipation pipe 6. The rear of the controller housing 1 is provided with a cooling fan 2 located below the exhaust port 3.

[0024] The front of the controller housing 1 is equipped with a touch screen 14, and the rear of the controller housing 1 is fixedly installed with a protective cover 15 located above the exhaust port 3. The protective cover 15 is currently a downward sloping plate, and the lower part of the protective cover 15 is flush with the bottom of the exhaust port 3.

[0025] One end of the drain pipe 9 is fixedly installed at the inlet of the circulating pump 16, and the outlet of the circulating pump 16 is fixedly installed at one end of the serpentine pipe 11.

[0026] The liquid inlet pipe 8, liquid guide pipe 10, liquid outlet pipe 9, and serpentine pipe 11 are filled with liquid heat-conducting medium. The liquid guide pipe 10 is arranged in a serpentine pattern inside the first heat-conducting plate 5.

[0027] The first heat-conducting plate 5 and the second heat-conducting plate 7 are made of the same material, and the heat sink 12 is made of the same material as the second heat-conducting plate 7. The first heat-conducting plate 5, the second heat-conducting plate 7 and the heat sink 12 are all made of aluminum alloy.

[0028] The controller housing 1 has a through hole at the rear, flush with the bottom of the heat sink 6. The cooling fan 2 is fixedly installed inside the through hole. An intake fan 17 is located on one side of the cooling fan 2 at the rear of the controller housing 1, and an exhaust fan 18 is located on the other side of the exhaust port 3 at the rear of the controller housing 1. A dust filter 13 is fixedly installed on the rear of the controller housing 1 outside the cooling fan 2. The intake fan 17 and the exhaust fan 18 circulate and exchange the air inside the controller housing 1 with the outside air, providing airflow into the controller housing 1. The system cools down the circuit board 4 by placing a first heat-conducting plate 5 on the outside of the control circuit board 4. The heat generated by the control circuit board 4 is then transferred to the heat-conducting medium inside the liquid guide tube 10 by the first heat-conducting plate 5 on the outside of the control circuit board 4. The heat-conducting medium with heat is then transported to the serpentine tube 11 through the drain pipe 9 by the circulating pump 16. The heat is then transferred to the heat sink 12 by the serpentine tube 11 and the second heat-conducting plate 7 for heat dissipation. The cooled heat-conducting medium flows back to the liquid guide tube 10 through the inlet pipe 8 to conduct away the heat absorbed by the first heat-conducting plate 5, further reducing the temperature inside the controller housing 1.

[0029] The adjacent heat sinks 12 are staggered. One side of the heat sink 12 is integrally connected to the second heat conduction plate 7, and the other end of the heat sink 12 is in close contact with the inside of the controller housing 1. By setting a cooling fan 2 at the bottom of the heat pipe 6, the air outside the controller housing 1 is drawn into the heat pipe 6. The air passes through the staggered heat sinks 12, so that the heat on the heat sink 12 is dissipated into the air and discharged through the exhaust port 3 at the top of the heat pipe 6. The staggered heat sinks 12 can increase the air flow path and better remove the heat on the heat sink 12.

[0030] Working principle:

[0031] The intake fan 17 and exhaust fan 18 circulate and exchange the air inside the controller housing 1 with the outside air, cooling the inside of the controller housing 1. Then, by setting a first heat-conducting plate 5 on the outside of the control circuit board 4, the heat generated by the control circuit board 4 is conducted to the heat-conducting medium inside the liquid guide pipe 10. The circulating pump 16 transports the heat-conducting medium with heat through the drain pipe 9 to the serpentine pipe 11. The serpentine pipe 11 and the second heat-conducting plate 7 then conduct the heat to the heat sink 12 for heat dissipation. The cooled heat-conducting medium flows back to the liquid guide pipe 10 through the liquid inlet pipe 8 to conduct the heat absorbed by the first heat-conducting plate 5 out, further reducing the temperature inside the controller housing 1. By setting a cooling fan 2 at the bottom of the heat sink 6, the air outside the controller housing 1 is drawn into the heat sink 6. The air passes through the staggered heat sink 12, allowing the heat on the heat sink 12 to be dissipated into the air and discharged through the exhaust port 3 at the top of the heat sink 6. The staggered arrangement of the heat sink 12 can increase the airflow path and better remove the heat on the heat sink 12.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure for motor control, comprising a controller housing (1) and a control circuit board (4) installed inside the controller housing (1), characterized in that, The control circuit board (4) is fixedly installed inside the controller housing (1). A heat sink (6) is fixedly installed on the back of the controller housing (1). A second heat-conducting plate (7) is integrally provided on the front of the heat sink (6). A first heat-conducting plate (5) is provided on the outside of the control circuit board (4). A liquid guide pipe (10) is provided inside the first heat-conducting plate (5). An inlet pipe (8) connected to one end of the liquid guide pipe (10) is fixedly installed on one side of the first heat-conducting plate (5). A drain pipe (9) connected to the other end of the liquid guide pipe (10) is fixedly installed on the first heat-conducting plate (5). The second heat-conducting plate (7) is provided with a serpentine tube (11) inside. One end of the serpentine tube (11) is connected to the liquid inlet pipe (8). The other end of the serpentine tube (11) is fixedly installed with a circulation pump (16). The other end of the drain pipe (9) is connected to the circulation pump (16). The heat dissipation pipe (6) is evenly arranged with heat dissipation fins (12) that are integrally connected to the second heat-conducting plate (7). The controller housing (1) is provided with an exhaust port (3) connected to the heat dissipation pipe (6) at the rear. The controller housing (1) is provided with a cooling fan (2) located below the exhaust port (3) at the rear.

2. The heat dissipation structure for motor control according to claim 1, characterized in that, The controller housing (1) has a touch screen (14) on the front and a protective cover (15) above the exhaust port (3) fixedly installed on the rear of the controller housing (1). The protective cover (15) is a downward inclined plate and the lower part of the protective cover (15) is flush with the bottom of the exhaust port (3).

3. The heat dissipation structure for motor control according to claim 1, characterized in that, One end of the drain pipe (9) is fixedly installed at the inlet of the circulation pump (16), and the outlet of the circulation pump (16) is fixedly installed at one end of the serpentine pipe (11).

4. The heat dissipation structure for motor control according to claim 1, characterized in that, The liquid inlet pipe (8), liquid guide pipe (10), liquid outlet pipe (9) and serpentine pipe (11) are filled with liquid heat-conducting medium. The liquid guide pipe (10) is arranged in a serpentine pattern inside the first heat-conducting plate (5).

5. The heat dissipation structure for motor control according to claim 1, characterized in that, The first heat-conducting plate (5) and the second heat-conducting plate (7) are made of the same material, and the heat sink (12) is made of the same material as the second heat-conducting plate (7). The first heat-conducting plate (5), the second heat-conducting plate (7) and the heat sink (12) are made of aluminum alloy.

6. The heat dissipation structure for motor control according to claim 1, characterized in that, The controller housing (1) has a through hole at the rear that is flush with the bottom of the heat sink (6). The cooling fan (2) is fixedly installed inside the through hole. The controller housing (1) has an intake fan (17) located on one side of the cooling fan (2) at the rear. The controller housing (1) has an exhaust fan (18) located on the other side of the exhaust port (3) at the rear. The controller housing (1) has a dustproof net (13) fixedly installed outside the cooling fan (2) at the rear.

7. The heat dissipation structure for motor control according to claim 1, characterized in that, The adjacent heat sinks (12) are staggered, one side of the heat sink (12) is integrally connected to the second heat conduction plate (7), and the other end of the heat sink (12) is in close contact with the inside of the controller housing (1).

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