Controller shell for small-sized electric actuator

By introducing a combination structure of heat dissipation grooves, heat conduction plates, cooling coils and water pumps into the controller housing of miniature electric actuators, the problem of overheating inside the housing is solved, achieving efficient heat dissipation and convenient maintenance.

CN224139339UActive Publication Date: 2026-04-17JIANGSU LEICESTER MEASUREMENT & CONTROL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The housing of the controller used in existing miniature electric actuators is prone to overheating under high-intensity use, which leads to an increase in the temperature of the internal components.

Method used

The design incorporates a combination of heat dissipation channels, heat conduction plates, heat dissipation plates, cooling coils, water pumps, and water tanks. The internal temperature of the casing is reduced through a circulating water cooling system, heat is dissipated using the heat conduction plates and heat dissipation plates, and cold water is circulated in the cooling coils for heat dissipation. The combination of fixed components and sealing structure facilitates installation and maintenance.

Benefits of technology

It effectively reduces the temperature of the internal components of the controller housing, preventing overheating, while facilitating the disassembly and maintenance of the device and ensuring that the internal components are not contaminated by the outside.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a controller shell for a fine and small electric actuator, which comprises a controller shell, and a plurality of radiating grooves communicated with the controller shell are symmetrically arranged on the front side and the rear side of the controller shell. Through arrangement of a heat dissipation groove, a heat conduction plate, a heat dissipation plate, a sealing groove, a fixing assembly, a cooling coil, a fixing shell, an output pipe, a connecting pipe, a water pump, a water tank assembly and an input pipe, when the temperature of components on the inner side of the controller shell rises, the water pump is started, and heat is guided into the cooling coil through the heat conduction plate and the heat dissipation plate; at the moment, cold water in the circulating water tank is guided into the cooling coil by the water pump, the water continuously circulates in the cooling coil and the circulating water tank, the temperature of the inner side of the controller shell can be rapidly reduced by repeating the steps, components in the controller shell can be cooled through the design, and overheating of the components on the inner side of the controller shell is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of controller housing technology, specifically a controller housing for a miniature electric actuator. Background Technology

[0002] As a core drive device in the field of industrial automation control, the compact electric actuator is designed for applications in confined spaces. It has the dual advantages of compact size and high performance. It adopts a lightweight structural design, with a volume of only about 35% of traditional products and a lighter weight, making it easy to install and maintain in the confined spaces of industries such as petrochemical, power, metallurgy, and HVAC. Its controller housing material is usually made of hard aluminum alloy, which is coated to form a protective layer that can effectively resist the erosion of corrosive media.

[0003] Existing controller housings for miniature electric actuators are widely used, but due to their enclosed design, the components inside the housing are prone to overheating when the electric actuator is used under high intensity. Therefore, a new controller housing for miniature electric actuators is proposed to address the above problem. Utility Model Content

[0004] The purpose of this invention is to provide a controller housing for a miniaturized electric actuator, in order to solve the problem of overheating of components inside existing housings as mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A controller housing for a miniaturized electric actuator includes a controller outer shell. Multiple heat dissipation slots, symmetrically arranged on the front and rear sides of the controller outer shell and communicating with it, are provided. A heat-conducting plate is tightly fitted to the inner side of each heat dissipation slot. A heat dissipation plate is fixedly connected to one side of each heat-conducting plate. A sealing groove is provided on the outer side of the heat dissipation slot, located on the outer side of the controller outer shell. A fixing component is provided on the outer side of the sealing groove. A cooling coil is fixedly connected to the side of the heat dissipation plate away from the heat-conducting plate. A fixing shell is fixedly connected to the outer side of the cooling coil. An output pipe communicating with the cooling coil is fixedly connected to one end of the cooling coil. A vertically arranged connecting pipe communicating with the two output pipes is fixedly connected between the two output pipes. A water pump communicating with the connecting pipe is fixedly connected to the top of the connecting pipe. A water tank assembly is installed on one side of the water pump. An input pipe communicating with the cooling coil is fixedly connected to the end of the cooling coil away from the output pipe.

[0007] Preferably, the fixing assembly includes a plurality of bolts fixedly connected to the outside of the controller housing, a nut being threadedly connected to the outside of the bolts, a fixing hole plate located on the outside of the bolts on one side of the nut, a fixing frame being fixedly connected between the plurality of fixing hole plates, and a sealing ring being fixedly connected to the side of the fixing frame near the controller housing.

[0008] Preferably, the heat sink is fixedly connected to the inside of the fixed frame, the sealing ring is located inside the sealing groove and is tightly fitted to the sealing groove, the fixed housing is fixedly connected to the fixed frame on the side close to the fixed frame, and the output pipe and the input pipe both pass through the fixed housing and are fixedly connected to the fixed housing.

[0009] Preferably, the water tank assembly includes a circulating water tank installed on the top of the controller housing, and a plurality of heat sinks penetrating the circulating water tank are fixedly connected to the inside of the circulating water tank, and a plurality of horizontal through holes are opened inside the heat sinks.

[0010] Preferably, the water pump is fixedly connected to the outside of the circulating water tank and communicates with the circulating water tank, and the end of the input pipe near the circulating water tank is fixedly connected to the circulating water tank and communicates with the circulating water tank.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) In this utility model, by setting heat dissipation groove, heat conduction plate, heat dissipation plate, sealing groove, fixing component, cooling coil, fixing shell, output pipe, connecting pipe, water pump, water tank component and input pipe, when the temperature of the inner component of the controller shell rises, the water pump is started, and the heat is introduced into the cooling coil through the heat conduction plate and heat dissipation plate. At this time, the water pump introduces the cold water in the circulating water tank into the cooling coil. The water circulates continuously in the cooling coil and the circulating water tank. This repeated process can quickly reduce the temperature of the inner component of the controller shell. This design can cool down the components inside the controller shell and prevent the inner component of the controller shell from overheating.

[0013] (2) In this utility model, by setting the fixing components, bolts, nuts, fixing hole plates, fixing frames and sealing rings, when installing the various components of the equipment, the heat conduction plate is inserted into the heat dissipation groove, and the nuts are screwed on the outside of the bolts. The water tank components are welded or glued to the top of the controller housing. The device can then be used normally. When the device needs to be repaired, the nuts can be unscrewed, and the fixing frame and fixing housing can be removed to repair the device. This design can seal the heat dissipation groove, and while drawing out the heat in the controller housing, it ensures that the components in the controller housing will not be contaminated by the outside, and makes the device easier to disassemble and repair. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the circulating water tank of this utility model;

[0016] Figure 3 This is a schematic diagram of the fixed frame installation structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the disassembled structure of the fixed frame connecting component of this utility model.

[0018] In the diagram: 1. Controller housing; 2. Heat dissipation groove; 3. Heat conduction plate; 4. Heat dissipation plate; 5. Sealing groove; 6. Fixing assembly; 61. Bolt; 62. Nut; 63. Fixing hole plate; 64. Fixing frame; 65. Sealing ring; 7. Cooling coil; 8. Fixing housing; 9. Output pipe; 10. Connecting pipe; 11. Water pump; 12. Water tank assembly; 121. Circulating water tank; 122. Heat sink; 123. Through hole; 13. Input pipe. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0021] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution:

[0023] A controller housing for a miniaturized electric actuator includes a controller housing 1. Multiple heat dissipation grooves 2 are symmetrically arranged on the front and rear sides of the controller housing 1, communicating with each other. A heat-conducting plate 3 is provided inside the heat dissipation groove 2, tightly fitting against the inner side of the heat dissipation groove 2. A heat dissipation plate 4 is fixedly connected to one side of the heat-conducting plate 3. A sealing groove 5 is provided on the outer side of the heat dissipation groove 2, extending to the outer side of the controller housing 1. A fixing component 6 is provided outside the sealing groove 5. A cooling coil 7 is fixedly connected to the side of the heat dissipation plate 4 away from the heat-conducting plate 3. A fixing component 6 is fixedly connected to the outer side of the cooling coil 7. The outer casing 8 has an output pipe 9 fixedly connected to one end of the cooling coil 7, which is in communication with the cooling coil 7. A vertically arranged connecting pipe 10, which is in communication with the two output pipes 9, is fixedly connected between the two output pipes 9. A water pump 11, which is in communication with the connecting pipe 10, is fixedly connected to the top end of the connecting pipe 10. A water tank assembly 12 is installed on one side of the water pump 11. An input pipe 13, which is in communication with the cooling coil 7, is fixedly connected to the end of the cooling coil 7 away from the output pipes 9. The water tank assembly 12 includes a circulating water tank 121 installed on the top of the controller outer casing 1. The circulating water tank 121 contains... Multiple heat sinks 122 are fixedly connected to the side of the circulating water tank 121, and multiple horizontal through holes 123 are opened inside the heat sinks 122. The water pump 11 is fixedly connected to the outside of the circulating water tank 121 and communicates with the circulating water tank 121. The end of the input pipe 13 near the circulating water tank 121 is fixedly connected to the circulating water tank 121 and communicates with the circulating water tank 121. The system is connected through the heat dissipation groove 2, heat conduction plate 3, heat dissipation plate 4, sealing groove 5, fixing component 6, cooling coil 7, fixing shell 8, output pipe 9, and connection. Pipe 10, water pump 11, water tank assembly 12, and input pipe 13 are used to start the water pump 11 when the temperature of the internal components of the controller housing 1 rises. The heat is introduced into the cooling coil 7 through the heat conduction plate 3 and the heat dissipation plate 4. At this time, the water pump 11 introduces the cold water in the circulating water tank 121 into the cooling coil 7. The water circulates continuously in the cooling coil 7 and the circulating water tank 121. This repeated process can quickly reduce the temperature of the internal components of the controller housing 1. This design can cool down the internal components of the controller housing 1 and prevent the internal components of the controller housing 1 from overheating.

[0024] The fixing component 6 includes multiple bolts 61 fixedly connected to the outside of the controller housing 1. Nuts 62 are threaded onto the outside of each bolt 61. A fixing plate 63 with holes located outside the bolts 61 is provided on one side of each nut 62. A fixing frame 64 is fixedly connected between the multiple fixing plates 63. A sealing ring 65 is fixedly connected to the side of the fixing frame 64 closest to the controller housing 1. A heat sink 4 is fixedly connected to the inside of the fixing frame 64. The sealing ring 65 is located inside the sealing groove 5 and fits tightly against it. The fixing housing 8 is fixedly connected to the fixing frame 64 on the side closest to it. Both the output pipe 9 and the input pipe 13 pass through the fixing housing 8 and are fixedly connected to it. This is achieved by setting... The device includes a fixing component 6, bolts 61, nuts 62, fixing plate 63, fixing frame 64, and sealing ring 65. When installing the various components of the device, the heat-conducting plate 3 is inserted into the heat dissipation groove 2, and the nuts 62 are screwed onto the outside of the bolts 61. The water tank component 12 is then welded or glued to the top of the controller housing 1. The device can then be used normally. When the device needs to be repaired, the nuts 62 can be unscrewed, thereby removing the fixing frame 64 and the fixing housing 8 to repair the device. This design can seal the heat dissipation groove 2, ensuring that the components in the controller housing 1 are not contaminated by the outside while drawing out the heat from the controller housing 1, and making the device easier to disassemble and repair.

[0025] Workflow: Before use, power on the device and connect it to the external controller. First, install the various components on the device. Pick up the fixing frame 64, insert the heat-conducting plate 3 on one side of the heat sink 4 into the heat dissipation groove 2 on the outside of the controller housing 1, and insert the bolt 61 into the inside of the fixing hole plate 63. Then, tighten the nut 62 on the outside of the bolt 61, so that the sealing ring 65 is inserted into the inside of the sealing groove 5 and fits tightly against the inside of the sealing groove 5. Next, weld or glue the water tank assembly 12 to the top of the controller housing 1. At this point, the device can be used normally. When the temperature of the components inside the controller housing 1 rises, start the water pump 11. The heat inside the controller housing 1 is transferred to the heat sink 4 through the heat-conducting plate 3 in the heat dissipation groove 2, and then to the cooling coil 7 inside the fixing housing 8 through the heat sink 4. At this time, the water pump 11 circulates the cold water in the water tank 121 through multiple through holes 123. The water is introduced into the cooling coil 7 through the input pipe 13. After absorbing heat, the water returns to the inside of the circulating water tank 121 through the output pipe 9 and the connecting pipe 10. The heat sink 122 absorbs and dissipates the heat. After cooling, the cold water enters the cooling coil 7 through the input pipe 13. This process is repeated to quickly reduce the temperature inside the controller housing 1. The design of the water tank assembly 12 and its connecting components can cool the components inside the controller housing 1 and prevent the components inside the controller housing 1 from overheating. When the device needs to be repaired, the nut 62 can be unscrewed to remove the fixing frame 64 and the fixing housing 8 for repair. The design of the fixing component 6 and its connecting components can seal the heat dissipation groove 2, ensuring that the components inside the controller housing 1 are not contaminated by the outside while drawing out the heat from the controller housing 1, and making the device easier to disassemble and repair.

[0026] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0027] 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 controller housing for a miniature electric actuator, comprising a controller housing (1), characterized in that: The controller housing (1) has multiple heat dissipation slots (2) symmetrically arranged on its front and rear sides, which are connected to the controller housing (1). A heat-conducting plate (3) is provided inside the heat dissipation slot (2) and is tightly fitted to the inside of the heat dissipation slot (2). A heat dissipation plate (4) is fixedly connected to one side of the heat-conducting plate (3). A sealing groove (5) is provided outside the heat dissipation slot (2) on the outside of the controller housing (1). A fixing component (6) is provided outside the sealing groove (5). A cooling coil (7) is fixedly connected to the side of the heat dissipation plate (4) away from the heat-conducting plate (3). The cooling coil (7) is located on the outside of... A fixed outer shell (8) is fixedly connected to the cooling coil (7). One end of the cooling coil (7) is fixedly connected to an output pipe (9) that passes through the cooling coil (7). A vertically arranged connecting pipe (10) that passes through the two output pipes (9) is fixedly connected between the two output pipes (9). A water pump (11) that passes through the connecting pipe (10) is fixedly connected to the top of the connecting pipe (10). A water tank assembly (12) is installed on one side of the water pump (11). An input pipe (13) that passes through the cooling coil (7) is fixedly connected to the end of the cooling coil (7) away from the output pipe (9).

2. The controller housing for a precision small electric actuator of claim 1, wherein: The fixing component (6) includes a plurality of bolts (61) fixedly connected to the outside of the controller housing (1). Nuts (62) are threadedly connected to the outside of the bolts (61). A fixing hole plate (63) located outside the bolts (61) is provided on one side of the nut (62). A fixing frame (64) is fixedly connected between the plurality of fixing hole plates (63). A sealing ring (65) is fixedly connected to the side of the fixing frame (64) near the controller housing (1).

3. The controller housing for a precision small electric actuator of claim 2, wherein: The heat sink (4) is fixedly connected to the inside of the fixed frame (64), the sealing ring (65) is located inside the sealing groove (5) and is tightly fitted to the sealing groove (5), the fixed housing (8) is fixedly connected to the fixed frame (64) on the side close to the fixed frame (64), and the output pipe (9) and the input pipe (13) both pass through the fixed housing (8) and are fixedly connected to the fixed housing (8).

4. The controller housing for a precision small electric actuator of claim 3, wherein: The water tank assembly (12) includes a circulating water tank (121) installed on the top of the controller housing (1). A plurality of heat sinks (122) are fixedly connected to the inside of the circulating water tank (121). A plurality of horizontal through holes (123) are opened inside the heat sinks (122).

5. The controller housing for a precision small electric actuator of claim 4, wherein: The water pump (11) is fixedly connected to the outside of the circulating water tank (121) and communicates with the circulating water tank (121). The end of the input pipe (13) near the circulating water tank (121) is fixedly connected to the circulating water tank (121) and communicates with the circulating water tank (121).