A heat dissipation unit for an electrical device

Abstract

The utility model belongs to the field of power equipment heat dissipation technology especially relates to a heat dissipation unit for power equipment, including radiator I, radiator II, support plate, heat pipe, be connected with a plurality of support plates between radiator I and radiator II, radiator I, radiator II structure is same, all includes base plate, fin, base plate one side is connected with a plurality of fin fixedly, the other side is connected with heating power device, support plate both ends are connected with radiator I, radiator II's base plate fixedly, fin sets up between radiator I and radiator II's base plate, heat pipe is connected with base plate fixedly. Advantage is: reasonable structure can carry out double -sided heat dissipation, can install heating power device on both sides, satisfies the heat dissipation demand of various power equipment. Realize the volume of satisfaction heat dissipation requirement while reducing.

Description

Technical Field

[0001] This utility model belongs to the field of power equipment heat dissipation technology, and in particular relates to a heat dissipation unit for power equipment. Background Technology

[0002] With the advancement of technology and the rapid development of power systems, the heat generated by power devices in electrical equipment such as reactive power compensation devices is increasing, while the overall size of these devices must be kept smaller. This necessitates matching heat dissipation devices that are both compact and capable of withstanding the clamping pressure during installation. Existing heat pipe cooling units are bulky and inflexible in installation. Therefore, a highly efficient heat dissipation unit is needed that can meet the heat dissipation requirements of power devices while maintaining a compact size and withstanding the clamping pressure during installation. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a heat dissipation unit for power equipment that can install heat-generating power devices on both sides, reduce the size, and ensure heat dissipation effect.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] A heat dissipation unit for power equipment includes a heat sink I, a heat sink II, a support plate, and a heat spreader. Several support plates are connected between heat sink I and heat sink II. Heat sink I and heat sink II have the same structure, each including a base plate and fins. One side of the base plate is fixedly connected to several fins, and the other side is connected to a power heating device. Both ends of the support plate are fixedly connected to the base plates of heat sink I and heat sink II, respectively. The fins are disposed between the base plates of heat sink I and heat sink II. The heat spreader is fixedly connected to the base plate.

[0006] There is a gap between the fins of heat sink I and the fins of heat sink II.

[0007] The support plate has threaded blind holes on both ends, and the base plate has mounting countersunk holes.

[0008] A heat spreader is connected to the other side of the substrate.

[0009] The other side of the substrate is provided with a groove.

[0010] The bottom surface of the aforementioned pipe trench is arc-shaped.

[0011] The other surface of the substrate is on the same plane as the surface of the heat exchanger.

[0012] The substrate and fins are made of copper or aluminum plates.

[0013] The substrate and fins are an integral structure.

[0014] The substrate is welded, bonded, or riveted to the fins.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] A heat dissipation unit for power equipment features a rational structure capable of bi-directional heat dissipation, allowing for the mounting of power devices on both sides and meeting the heat dissipation requirements of various power equipment. It achieves both size reduction and heat dissipation requirements. The heat dissipation unit remains undeformed under clamping force perpendicular to the mounting surface of the power device, meeting the installation requirements of the power device. Heat sink I and heat sink II are tightly connected by a support plate, forming a unified structure capable of bi-directional heat dissipation. The finned portion between heat sink I and heat sink II increases the heat dissipation area and improves heat dissipation efficiency. The embedded heat spreader further optimizes the heat conduction path, enabling the heat from the power device to be rapidly conducted to the edge of the substrate and dissipated. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the heat sink.

[0019] Figure 3 This is a structural schematic diagram of the support plate.

[0020] Figure 4 This is a schematic diagram of the structure of the heat exchanger inside the tube trench.

[0021] In the diagram: 1. Heat sink I; 2. Heat sink II; 3. Support plate; 4. Bolt; 5. Heating power device; 6. Heat spreader; 7. Fin; 8. Substrate; 9. Mounting countersunk hole; 10. Tube groove; 11. Threaded blind hole. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings. However, it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0023] See Figures 1-4 A heat dissipation unit for power equipment includes a heat sink I1, a heat sink II2, a support plate 3, and a heat spreader 6. Several support plates 3 are connected between heat sink I1 and heat sink II2. Heat sink I1 and heat sink II2 have the same structure, each including a base plate 8 and fins 7. One side of the base plate 8 is fixedly connected to several fins 7, and the other side is connected to a heat-generating power device 5. The two ends of the support plate 3 are fixedly connected to the base plate 8 of heat sink I1 and heat sink II2 respectively, which is used to support the connection of the two heat sinks while preventing the base plate 8 from deforming. The fins 7 are disposed between the base plates 8 of heat sink I1 and heat sink II2. The heat spreader 6 is fixedly connected to the base plate 8.

[0024] The fins 7 of heat sink I1 and heat sink II2 are aligned in a straight line, with a gap between their ends. This avoids interference that would hinder installation and also prevents short circuits in the cooling medium caused by excessive gaps, which would affect heat dissipation.

[0025] Both ends of the support plate 3 are provided with threaded blind holes 11, and the base plate 8 is provided with mounting countersunk holes 9. Bolts 4 pass through the mounting countersunk holes 9 and are screwed into the threaded blind holes 11 to ensure that the two ends of the support plate 3 are vertically fixed to the base plate 8, so that the heat sink I1 and heat sink II2 are in close contact with the support plate 3 and are firmly connected. The heat-generating power device 5 requires a certain clamping pressure to meet the device's usage requirements. When this high-efficiency heat dissipation unit is subjected to a very large clamping force in the direction perpendicular to the power device mounting surface, the structure remains firm and does not deform under the action of the support plate 3 and the base plate 8; and the flatness of the device mounting surface of the base plate 8 meets the requirements of the power device mounting surface.

[0026] The substrate 8 of heat sink I1 and heat sink II2 can be processed with a groove 10. The bottom surface of the groove 10 is arc-shaped. A heat spreader 6 is embedded in the groove 10. The heat spreader 6 is embedded in the groove 10 by means of extrusion, welding, bonding and other methods. After the heat spreader 6 is embedded, the cross-section forms a D-shaped structure. The arc-shaped embedded part of the heat spreader 6 is tightly connected to the wall of the groove 10. The surface of the heat spreader 6 is on the same plane as the surface of the substrate 8, so that the heat of the heat-generating power device 5 can be quickly conducted to the edge of the substrate 8 through the heat spreader 6 to improve the heat dissipation efficiency.

[0027] The substrate 8 and the fins 7 can be an integral or separate structure. The separate structure can be connected by welding, bonding, riveting, or other connection methods.

[0028] The substrate 8 and fins 7 are made of copper or aluminum plates, which have good thermal conductivity and mechanical properties. The heat pipe 6 is a sintered heat pipe or a channel heat pipe, and its material is copper.

[0029] This utility model has a reasonable structure and can perform double-sided heat dissipation, allowing for the installation of heat-generating power devices 5 on both sides, thus meeting the heat dissipation needs of various electrical equipment. It achieves both size reduction and heat dissipation requirements. The installed power devices require a certain clamping pressure to meet their usage requirements. This high-efficiency heat dissipation unit remains structurally robust and undeformed even when subjected to very large clamping forces perpendicular to the power device mounting surface, and the flatness of the load-bearing surface, the device mounting substrate 8, meets the requirements for the power device mounting plane.

Claims

1. A heat dissipation unit for power equipment, characterized in that, It includes heat sink I, heat sink II, support plate, and heat spreader. Several support plates are connected between heat sink I and heat sink II. Heat sink I and heat sink II have the same structure, each including a base plate and fins. One side of the base plate is fixedly connected to several fins, and the other side is connected to the heat-generating power device. Both ends of the support plate are fixedly connected to the base plates of heat sink I and heat sink II, respectively. The fins are arranged between the base plates of heat sink I and heat sink II. The heat spreader is fixedly connected to the base plate.

2. A heat dissipation unit for power equipment according to claim 1, characterized in that, There is a gap between the fins of heat sink I and the fins of heat sink II.

3. A heat dissipation unit for power equipment according to claim 1, characterized in that, The support plate has threaded blind holes on both ends, and the base plate has mounting countersunk holes.

4. A heat dissipation unit for power equipment according to claim 1, characterized in that, A heat spreader is connected to the other side of the substrate.

5. A heat dissipation unit for power equipment according to claim 1, characterized in that, The other side of the substrate is provided with a groove.

6. A heat dissipation unit for power equipment according to claim 5, characterized in that, The bottom surface of the aforementioned pipe trench is arc-shaped.

7. A heat dissipation unit for power equipment according to claim 1, characterized in that, The other surface of the substrate is on the same plane as the surface of the heat exchanger.

8. A heat dissipation unit for power equipment according to claim 1, characterized in that, The substrate and fins are made of copper or aluminum plates.

9. A heat dissipation unit for power equipment according to claim 1, characterized in that, The substrate and fins are an integral structure.

10. A heat dissipation unit for power equipment according to claim 1, characterized in that, The substrate is welded, bonded, or riveted to the fins.

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