A double-sided panel structure heat sink for a contactless controller

Abstract

The utility model discloses a double -faced board structure radiator for contactless controller belongs to controller heat dissipation technical field, including controller module and radiator body, the radiator body includes upper panel, lower panel, fin and fan, the controller module is installed in the upper panel, the lower panel is parallel interval with the upper panel, the fin is located between the upper panel and lower panel, and the fin includes the first fin of the upper panel transverse both ends and is located between the first fin of both sides second fin, the longitudinal length of first fin is same with the upper panel, and the longitudinal length of second fin is shorter than the upper panel, and the upper panel, lower panel and both sides first fin enclose and form the mounting groove, and the fan is embedded in the mounting groove. The utility model discloses adopting the upper panel structure cooperation fin differentiation layout, guarantees the heat dissipation area again, and the fan in the mounting groove forms directional airflow, and it is helpful to promote the heat convection efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of controller heat dissipation technology, and specifically relates to a double-panel heat sink for contactless controllers. Background Technology

[0002] As a core component in industrial control and power electronic equipment, contactless controllers generate a significant amount of heat under high-frequency, high-load conditions due to the continuous generation of heat from their internal power devices and integrated circuits. Excessive temperature directly leads to a decrease in controller response speed and reduced operational stability. In severe cases, it can accelerate the aging of electronic components, shorten their lifespan, and even cause equipment failure. Therefore, heat dissipation performance directly affects the operational reliability of contactless controllers.

[0003] Currently, most heat dissipation solutions for contactless controllers use traditional single-panel heat sinks. Single-panel heat sinks have limited heat dissipation area, and the fin layout is mostly uniformly distributed. They are not structurally adapted for fan installation, and the fans are usually externally suspended. This not only results in poor installation stability but also easily leads to airflow dispersion, making it impossible to efficiently pass through the gaps between the fins to remove heat, resulting in low thermal convection efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a double-panel heat sink for contactless controllers, aiming to solve the problems existing in the prior art mentioned above.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A dual-panel heat sink for a contactless controller includes a controller module and a heat sink body. The heat sink body includes an upper panel, a lower panel, fins, and a fan. The controller module is mounted on the upper panel. The lower panel is parallel to and spaced apart from the upper panel. The fins are located between the upper and lower panels. The fins include first fins located at both ends of the upper panel laterally and second fins located between the two first fins. The longitudinal length of the first fins is the same as that of the upper panel, and the longitudinal length of the second fins is shorter than that of the upper panel. The upper panel, lower panel, and the two first fins together form a mounting groove, and the fan is embedded in the mounting groove.

[0006] Furthermore, the upper panel is provided with a temperature relay for detecting the temperature of the upper panel. The temperature relay is electrically connected to the fan. The bottom of the controller module has an inner slot for accommodating the temperature relay. The temperature relay is connected to the power board of the controller module via a wire.

[0007] Furthermore, the fan turns on when the temperature relay detects a temperature greater than 45°C, and turns off when the temperature relay detects a temperature less than 30°C.

[0008] Furthermore, the fan is provided with a C-shaped mounting bracket and an outer cover. The upper and lower side plates of the C-shaped mounting bracket are respectively attached to the upper mounting plate and the lower mounting plate and fixed by bolts. The outer cover is located outside the mounting groove.

[0009] Furthermore, the upper panel, lower panel, and fins are all made of aluminum profiles.

[0010] Furthermore, the lower panel has mounting holes.

[0011] Compared with the shortcomings and deficiencies of the prior art, the present invention has the following beneficial effects.

[0012] This utility model provides a double-panel heat sink for contactless controllers, which adopts a combination structure of upper panel, fins and lower panel. All three are made of high thermal conductivity aluminum profiles with low thermal resistance, which helps to improve heat transfer efficiency compared with traditional single-panel heat sinks. The fins adopt a differentiated layout of first fins at both ends and second fins in the middle, which not only ensures the heat dissipation area, but also forms a directional airflow with the fan in the mounting slot. After the fan is started, the airflow can accurately pass through the gaps between the fins, avoiding the problem of airflow dispersion of traditional external fans, and greatly improving the heat convection efficiency.

[0013] This utility model integrates a temperature relay on the top plate, which can adaptively control the fan start and stop according to the actual temperature. The heat sink achieves passive heat dissipation through the high thermal conductivity of the aluminum profile frame, and then triggers active heat dissipation with the temperature control logic of the temperature relay, avoiding the ineffective energy consumption of traditional heat sink fans running continuously and reducing the overall power consumption of the equipment. At the same time, the fan is selected as a silent type and is embedded and fixed, which reduces vibration and collision noise compared with traditional external fans. In addition, the non-continuous operation mode of the fan can also reduce mechanical wear. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the connection between the controller module and the heat sink body in this utility model.

[0015] Figure 2 This is a three-dimensional structural diagram of the radiator body with the mounting groove in this utility model.

[0016] Figure 3 This is a cross-sectional view of the radiator body in this utility model.

[0017] In the diagram: 10, controller module; 20, top panel; 21, temperature relay; 30, fin; 31, first fin; 32, second fin; 40, bottom panel; 41, mounting hole; 50, fan; 51, C-mount bracket; 52, outer cover; 60, mounting slot. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] Reference Figure 1 This utility model discloses a double-panel structure heat sink for a contactless controller, including a controller module 10 and a heat sink body, wherein the controller module 10 is a contactless controller and is installed on the top surface of the heat sink body.

[0020] Reference Figure 2 and Figure 3 The heat sink body includes an upper panel 20, fins 30, a lower panel 40, and a fan 50. The upper panel 20 and the lower panel 40 are arranged parallel to each other and spaced apart. The longitudinal length of the upper panel 20 is shorter than that of the lower panel 40. The controller module 10 is fixedly installed on the upper panel 20. The fins 30 are installed between the upper panel 20 and the lower panel 40. The thickness of the fins 30 is set to 2mm. It includes first fins 31 located at both ends of the upper panel 20 and second fins 32 located between the first fins 31 on both sides. Multiple second fins 32 are evenly distributed between the first fins 31 on both sides. The longitudinal length of the first fin 31 is the same as that of the upper panel 20, and the longitudinal length of the second fin 32 is shorter than that of the upper panel 20. That is, one end of the longitudinal length of the second fin 32 is aligned with the upper panel 20, and the other end forms a mounting groove 60. The mounting groove 60 is formed by the upper panel 20, the first fins 31 on both sides and the lower panel 40. The fan 50 is embedded in the mounting groove 60 and the fan 50 is a silent fan. Mounting holes 41 are respectively opened on both sides of the longitudinal length of the lower panel 40.

[0021] In this embodiment, the upper panel 20 and the fins 30 are integrally formed through processes such as die extrusion, surface treatment, fixed-length cutting, and precision machining; the lower panel 40 is an independent profile, which is fixedly connected to the fins 30 by means of pressing and welding. The upper panel 20, fins 30, and lower panel 40 are all made of aluminum profiles, which together constitute the main heat dissipation structure of this double-panel heat sink.

[0022] A C-shaped mounting bracket 51 and an outer cover 52 are provided on one side of the fan 50. The upper and lower side plates of the C-shaped mounting bracket 51 are respectively attached to the upper panel 20 and the lower panel 40, and the upper and lower side plates are provided with first threaded holes. The upper panel 20 and the lower panel 40 are provided with second threaded holes at corresponding positions. After the fan 50 is installed into the mounting groove 60, the first threaded holes and the second threaded holes are aligned and connected, and fixed by bolts. The outer cover 52 is located outside the mounting groove 60.

[0023] In one embodiment, the upper panel 20 is provided with a temperature relay 21, which is electrically connected to the fan 50. The bottom of the controller module 10 has a corresponding inner groove in which the temperature relay 21 is embedded, with its temperature-sensing metal plate tightly fitted to the upper panel 20. When the temperature of the upper panel 20 reaches 45°C, the temperature relay 21 controls the fan 50 to turn on; when the temperature of the upper panel 20 is below 30°C, the temperature relay 21 controls the fan 50 to turn off.

[0024] Temperature relay 21 is connected to the power board of controller module 10 via a wire and is powered by controller module 10. The specific model of temperature relay 21 can be KSD-01F.

[0025] The working principle of this double-panel heat sink for contactless controllers: When the contactless controller module 10 is powered on, its internal electronic components will generate heat. Since the controller module 10 is fixedly installed on the upper panel 20 of the heat sink body, the heat will be quickly transferred to the upper panel 20 through thermal conduction. Because the upper panel 20 is made of aluminum profile with high thermal conductivity, it can quickly receive and dissipate heat, avoiding local heat accumulation in the controller module 10.

[0026] The heat received by the upper panel 20 will be further conducted to the fins 30 below it. The fins 30 are also made of aluminum profile and are integrally formed with the upper panel 20 by die extrusion, ensuring that there are no gaps in the heat conduction path and that heat can be directly transferred to each fin. The fins 30 increase the heat dissipation area and exchange heat with the surrounding air through thermal convection to achieve natural heat dissipation. The lower panel 40 serves as the bottom support of the heat sink body. On the one hand, it is fixed to the fins 30 by pressing and welding to form a complete aluminum profile heat dissipation frame, which helps to disperse the heat of the fins 30. On the other hand, the mounting holes 41 of the lower panel 40 can fix the heat sink to the frame as a whole to ensure structural stability. To cope with the high heat output of the controller module 10 under high load, the heat sink achieves active cooling through a temperature relay 21. The temperature relay 21 is embedded in the inner groove at the bottom of the controller module 10, and its temperature sensing metal plate is in close contact with the upper panel 20, which can detect the temperature of the upper panel 20 in real time. When the load of the controller module 10 increases, the temperature of the upper panel 20 is conducted to the temperature relay 21, and when the detected temperature reaches 45°C, the temperature relay 21 triggers the circuit to conduct, supplying power to the fan 50. The fan 50 is embedded in the mounting groove 60 surrounded by the upper panel 20, the first fins 31 on both sides, and the lower panel 40. After starting, it will form a directional airflow. Driven by the fan 50, the airflow quickly passes through the gaps between the fins 30, accelerates the removal of heat from the surface of the fins 30, greatly improves the heat convection efficiency, and achieves active cooling.

[0027] When the load on the controller module 10 decreases, the temperature of the upper panel 20 gradually decreases as heat is consumed. If the temperature relay 21 detects that the temperature is below 30°C, its internal contacts open, cutting off the power supply to the fan 50. The fan 50 stops running, and the heat sink returns to a passive cooling state. This closed-loop logic can prevent the fan 50 from running ineffectively, which saves energy, reduces the operating noise of the silent fan, and extends the fan's service life.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-panel heat sink for a contactless controller, comprising a controller module (10) and a heat sink body, characterized in that, The heat sink body includes an upper panel (20), a lower panel (40), fins (30), and a fan (50). The controller module (10) is installed on the upper panel (20). The lower panel (40) is parallel to and spaced apart from the upper panel (20). The fins (30) are located between the upper panel (20) and the lower panel (40). The fins (30) include first fins (31) located at both ends of the upper panel (20) and second fins (32) located between the first fins (31) on both sides. The longitudinal length of the first fins (31) is the same as that of the upper panel (20). The longitudinal length of the second fins (32) is shorter than that of the upper panel (20). The upper panel (20), the lower panel (40), and the first fins (31) on both sides enclose and form a mounting groove (60). The fan (50) is embedded in the mounting groove (60).

2. The double-panel heat sink as described in claim 1, characterized in that, The upper panel (20) is provided with a temperature relay (21) for detecting the temperature of the upper panel (20). The temperature relay (21) is electrically connected to the fan (50). The bottom of the controller module (10) has an inner groove for accommodating the temperature relay (21). The temperature relay (21) is connected to the power board of the controller module (10) by a wire.

3. The double-panel heat sink as described in claim 2, characterized in that, When the temperature relay (21) detects a temperature greater than 45°C, the fan (50) turns on; when the temperature relay (21) detects a temperature less than 30°C, the fan (50) turns off.

4. The double-panel heat sink as described in claim 1, characterized in that, The fan (50) is provided with a C-shaped mounting bracket (51) and an outer cover (52). The upper and lower side plates of the C-shaped mounting bracket (51) are respectively attached to the upper panel (20) and the lower panel (40) and fixed by bolts. The outer cover (52) is located outside the mounting groove (60).

5. The double-panel heat sink as described in claim 1, characterized in that, The upper panel (20), lower panel (40) and fins (30) are all made of aluminum profiles.

6. The double-panel heat sink as described in claim 1, characterized in that, The lower panel (40) has mounting holes (41).

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