Heat dissipation structure of electric actuator

Abstract

The utility model discloses a heat dissipation structure of an electric actuator, which comprises an electric actuator shell and two groups of heat dissipation components, the two groups of heat dissipation components are respectively arranged on two sides of the electric actuator shell, each heat dissipation component comprises a connecting frame, the outer walls of multiple sides of the connecting frame are jointly and fixedly connected with a mounting plate, a mounting frame is fixedly connected in the connecting frame, and the mounting plate is fixedly connected with the mounting frame. A semiconductor chilling plate is embedded in the mounting frame, one side of the mounting frame is fixedly connected with a temperature conducting plate, the cold end of the semiconductor chilling plate is in contact with the temperature conducting plate, the temperature conducting plate is inserted into the electric actuator shell, and the other side of the mounting frame is fixedly connected with a cooling fin. According to the electric actuator, the heat dissipation assemblies are arranged on the two sides of the shell of the electric actuator, so that heat dissipation can be conveniently conducted on the interior of the shell of the electric actuator, the electric actuator is prevented from being in an open state, noise generated when the electric actuator operates is reduced, and drying of lubricating oil in the electric actuator is slowed down.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for electric actuators, and in particular to a heat dissipation structure for electric actuators. Background Technology

[0002] Electric actuators are an essential component in automatic control systems. Their function is to receive control signals from the controller, change the size of the controlled medium, and thus maintain the controlled variable at a specified value. Electric actuators contain a large number of electrical components, which generate a lot of heat when they are working. Therefore, electric actuators need to be equipped with heat dissipation structures to reduce their internal temperature.

[0003] Among them, a search revealed Chinese patent CN222532064U, which discloses an electric actuator with convenient heat dissipation. The aforementioned patent achieves the heat dissipation function of the electric actuator by combining a cooling fan and a heat dissipation box. However, since the electric actuator is in an open state, the sound of the electric actuator is easily transmitted, and the lubricant inside the electric actuator is prone to drying out, affecting the normal use of the electric actuator. Therefore, in order to advance the industry's technology, better realize the heat dissipation function of the electric actuator, and improve the core technology competitiveness, this application proposes a new implementation scheme that is different from the heat dissipation structure and application method of the electric actuator in the prior art. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that in the existing heat dissipation structure of electric actuators, the sound of the electric actuator is easily transmitted during use because the electric actuator is in an open state, and the lubricating fluid inside the electric actuator is easy to dry out, which affects the normal use of the electric actuator. Therefore, a heat dissipation structure for electric actuators is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heat dissipation structure for an electric actuator includes an electric actuator housing and two sets of heat dissipation components. The two sets of heat dissipation components are respectively disposed on both sides of the electric actuator housing. Each heat dissipation component includes a connecting frame, with a mounting plate fixedly connected to multiple outer walls of the connecting frame. A mounting frame is fixedly connected inside the connecting frame, and a thermoelectric cooler is embedded in the mounting frame. A temperature-conducting plate is fixedly connected to one side of the mounting frame, with the cold end of the thermoelectric cooler in contact with the temperature-conducting plate. The temperature-conducting plate is inserted into the electric actuator housing. A heat sink is fixedly connected to the other side of the mounting frame, with the heat sink in contact with the hot end of the thermoelectric cooler.

[0007] Furthermore, the electric actuator housing is provided with protective shells on both sides, and a mounting port is provided on one side of the protective shell, into which the heat dissipation component is inserted.

[0008] Furthermore, a first sealing gasket is adhered to one side of the mounting plate, and the first sealing gasket contacts one side of the electric actuator housing.

[0009] Furthermore, the bottom of the protective shell is provided with a vent, and a detachable dustproof net is snapped into the vent.

[0010] Furthermore, a cooling fan is embedded in the top of the protective shell, and a second sealing gasket is adhered to one side of the protective shell, with the second sealing gasket contacting one side of the outer wall of the electric actuator housing.

[0011] Furthermore, a first connecting frame is fixedly connected between the multiple outer walls of one of the protective shells, and a second connecting frame is fixedly connected between the multiple outer walls of the other protective shell.

[0012] Furthermore, two positioning rods are fixedly connected to both ends of the first connecting frame, and two positioning holes are provided at both ends of the first connecting frame, with the positioning rods inserted into the positioning holes.

[0013] Furthermore, both ends of the first connecting frame are rotatably connected to connecting screws, one end of the connecting screw is engaged with one end of the second connecting frame, and this end of the connecting screw is also threaded with a wing nut.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. By providing heat dissipation components on both sides of the electric actuator housing, heat dissipation inside the electric actuator housing can be facilitated, thereby avoiding the electric actuator being in an open state, reducing noise during operation, and slowing down the drying of the lubricating oil inside the electric actuator.

[0016] 2. The heat generated during the operation of the electric actuator is transferred to the heat-conducting plate, which then transfers the heat to the cold end of the thermoelectric cooler. Subsequently, the heat from the cold end of the thermoelectric cooler is transferred to the hot end, causing the temperature of the cold end of the thermoelectric cooler to drop, thereby cooling and dissipating heat inside the electric actuator housing.

[0017] 3. By inserting the positioning rod into the positioning hole, the two protective shells are respectively placed on the outside of the heat dissipation components on both sides of the electric actuator housing. Then, the connecting screw is turned to engage with one end of the second connecting bracket. Finally, the wing nut is tightened to fix the connecting screw, thereby fixing the protective shell in place. The operation is simple, convenient and quick. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a heat dissipation structure for an electric actuator proposed in this utility model;

[0019] Figure 2This is a three-dimensional structural diagram of the heat dissipation component of an electric actuator heat dissipation structure in the installation state, as proposed in this utility model.

[0020] Figure 3 This is a partial side view of the heat dissipation assembly of an electric actuator heat dissipation structure in its installation state, as proposed in this utility model.

[0021] Figure 4 This is a top view of the heat dissipation assembly of an electric actuator heat dissipation structure proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the connection state of two protective shells in a heat dissipation structure for an electric actuator proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the two protective shells in the separated state of a heat dissipation structure for an electric actuator proposed in this utility model.

[0024] In the diagram: 1. Electric actuator housing; 2. Heat dissipation assembly; 201. Connecting frame; 202. Mounting plate; 203. Mounting frame; 204. Semiconductor cooling chip; 205. Heat sink; 206. Temperature conductive plate; 3. Mounting port; 4. First sealing gasket; 5. Protective shell; 6. Ventilation port; 7. Cooling fan; 8. First connecting bracket; 9. Second connecting bracket; 10. Connecting screw; 11. Wing nut; 12. Positioning hole; 13. Positioning rod; 14. Dustproof net; 15. Second sealing gasket. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-6A heat dissipation structure for an electric actuator includes an electric actuator housing 1 and two sets of heat dissipation components 2. The two sets of heat dissipation components 2 are respectively disposed on both sides of the electric actuator housing 1. Each heat dissipation component 2 includes a connecting frame 201. A mounting plate 202 is welded to the multiple outer walls of the connecting frame 201. A mounting frame 203 is welded inside the connecting frame 201. A thermoelectric cooler 204 is embedded in the mounting frame 203. A temperature-conducting plate 206 is fixed to one side of the mounting frame 203 by bolts. The cold end of the thermoelectric cooler 204 contacts the temperature-conducting plate 206. The temperature-conducting plate 206 is inserted into the electric actuator housing 1. The heat generated when the electric actuator is working is transferred to the temperature-conducting plate 206. Then, the temperature-conducting plate 206 transfers the heat to the cold end of the thermoelectric cooler 204. Then, the heat from the cold end of the thermoelectric cooler 204 is transferred to the hot end of the thermoelectric cooler 204, thereby causing the temperature of the cold end of the thermoelectric cooler 204 to drop, thereby cooling and dissipating heat inside the electric actuator housing 1.

[0027] On the other side of the mounting frame 203, a heat sink 205 is fixed with bolts. The heat sink 205 is in contact with the hot end of the thermoelectric cooler 204. Protective shells 5 are provided on both sides of the electric actuator housing 1. A mounting port 3 is provided on one side of the protective shell 5. The heat dissipation component 2 is snapped into the mounting port 3. A first sealing gasket 4 is adhered to one side of the mounting plate 202. The first sealing gasket 4 is in contact with one side of the electric actuator housing 1, thereby sealing the heat dissipation component 2 and the electric actuator housing 1. A vent 6 is provided at the bottom of the protective shell 5. A removable dustproof net 14 is snapped into the vent 6. A cooling fan 7 is embedded at the top of the protective shell 5. The heat from the cold end of the thermoelectric cooler 204 is dissipated into the protective shell 5 through the heat sink 205. Under the action of the cooling fan 7, the gas passes through the dustproof net 14 to filter out dust and enters the protective shell 5. Then, it passes through the heat sink 205 to carry away the heat and is discharged from the top of the protective shell 5, thereby dissipating heat and cooling the hot end of the thermoelectric cooler 204.

[0028] A second sealing gasket 15 is adhered to one side of the protective shell 5. The second sealing gasket 15 contacts one side of the outer wall of the electric actuator housing 1, thereby sealing the protective shell 5 and the electric actuator housing 1. A first connecting frame 8 is welded between the multiple outer walls of one protective shell 5, and a second connecting frame 9 is welded between the multiple outer walls of the other protective shell 5. Two positioning rods 13 are welded to both ends of the first connecting frame 8. Two positioning holes 12 are provided at both ends of the first connecting frame 8. The positioning rods 13 are inserted into the positioning holes 12. The two protective shells 5 are respectively covered on the outside of the heat dissipation components 2 on both sides of the electric actuator housing 1 by the insertion of the positioning rods 13 into the positioning holes 12. Connecting screws 10 are rotatably connected to both ends of the first connecting frame 8. One end of the connecting screw 10 is engaged with one end of the second connecting frame 9. A wing nut 11 is also threaded onto this end of the connecting screw 10. The connecting screw 10 is engaged with one end of the second connecting frame 9. Then, the wing nut 11 is tightened to fix the connecting screw 10, thereby fixing the protective shell 5.

[0029] The working principle of this embodiment is as follows: the heat dissipation component 2 is fixed on one side of the electric actuator housing 1, and the temperature conducting plate 206 is inserted into the electric actuator housing 1. Then, the two protective shells 5 are respectively covered on the outside of the heat dissipation components 2 on both sides of the electric actuator housing 1 by the insertion of the positioning rod 13 and the positioning hole 12. Then, the connecting screw 10 is engaged with one end of the second connecting bracket 9. Then, the wing nut 11 is tightened to fix the connecting screw 10, thereby fixing the protective shell 5.

[0030] The heat generated during the operation of the electric actuator is transferred to the heat-conducting plate 206. Then, the heat-conducting plate 206 transfers the heat to the cold end of the thermoelectric cooler 204. Next, the heat from the cold end of the thermoelectric cooler 204 is transferred to the hot end of the thermoelectric cooler 204, thereby causing the temperature of the cold end of the thermoelectric cooler 204 to drop, thus cooling and dissipating heat inside the electric actuator housing 1. Then, the heat from the cold end of the thermoelectric cooler 204 is dissipated into the protective shell 5 through the heat sink 205. Under the action of the cooling fan 7, the gas passes through the dust filter 14 to remove dust and enters the protective shell 5. Then, it passes through the heat sink 205 to carry away the heat and is discharged from the top of the protective shell 5, thereby cooling and dissipating heat from the hot end of the thermoelectric cooler 204.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heat dissipation structure for an electric actuator, comprising an electric actuator housing (1) and two sets of heat dissipation components (2), the two sets of heat dissipation components (2) being respectively disposed on both sides of the electric actuator housing (1), characterized in that, The heat dissipation assembly (2) includes a connecting frame (201), and a mounting plate (202) is fixedly connected to the multiple outer walls of the connecting frame (201). A mounting frame (203) is fixedly connected inside the connecting frame (201). A semiconductor cooling chip (204) is embedded inside the mounting frame (203). A temperature-conducting plate (206) is fixedly connected to one side of the mounting frame (203). The cold end of the semiconductor cooling chip (204) is in contact with the temperature-conducting plate (206). The temperature-conducting plate (206) is inserted into the electric actuator housing (1). A heat sink (205) is fixedly connected to the other side of the mounting frame (203). The heat sink (205) is in contact with the hot end of the semiconductor cooling chip (204).

2. The heat dissipation structure for an electric actuator according to claim 1, characterized in that, The electric actuator housing (1) is provided with protective shells (5) on both sides, and a mounting port (3) is provided on one side of the protective shell (5), and the heat dissipation component (2) is inserted into the mounting port (3).

3. The heat dissipation structure for an electric actuator according to claim 1, characterized in that, A first sealing gasket (4) is adhered to one side of the mounting plate (202), and the first sealing gasket (4) is in contact with one side of the electric actuator housing (1).

4. The heat dissipation structure for an electric actuator according to claim 2, characterized in that, The bottom of the protective shell (5) is provided with a vent (6), and a detachable dustproof net (14) is snapped into the vent (6).

5. The heat dissipation structure for an electric actuator according to claim 2, characterized in that, A cooling fan (7) is embedded in the top of the protective shell (5), and a second sealing gasket (15) is adhered to one side of the protective shell (5). The second sealing gasket (15) is in contact with one side of the outer wall of the electric actuator housing (1).

6. The heat dissipation structure for an electric actuator according to claim 2, characterized in that, One of the protective shells (5) is fixedly connected to the outer walls of its multiple sides with a first connecting frame (8), and the other protective shell (5) is fixedly connected to the outer walls of its multiple sides with a second connecting frame (9).

7. The heat dissipation structure for an electric actuator according to claim 6, characterized in that, Two positioning rods (13) are fixedly connected to both ends of the first connecting frame (8). Two positioning holes (12) are provided at both ends of the first connecting frame (8). The positioning rods (13) are inserted into the positioning holes (12).

8. The heat dissipation structure for an electric actuator according to claim 6, characterized in that, Both ends of the first connecting frame (8) are rotatably connected with connecting screws (10). One end of the connecting screw (10) is engaged with one end of the second connecting frame (9). A wing nut (11) is also threaded onto this end of the connecting screw (10).

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