Air-cooled integrated heat dissipation valve group for electric power deicing equipment

Abstract

This utility model relates to an integrated air-cooled heat dissipation valve assembly for electric de-icing equipment, comprising a heat dissipation unit, pressure plate I, pressure plate II, supporting vertical plate, top bolt, and pad. The supporting vertical plate is fixedly connected between pressure plate I and pressure plate II, forming a frame structure. The heat dissipation unit and heating element are housed within this frame structure; the heat dissipation unit and heating element are stacked on top of each other; a pad is provided between the heat dissipation unit and pressure plate II; the top bolt is threadedly connected to pressure plate II, with its bottom end abutting against the pad; insulating blocks are connected to both sides of the heat dissipation unit, allowing it to slide between the supporting vertical plates; the heat dissipation unit is composed of two identical heat dissipation blocks welded together. Advantages include: efficient heat dissipation for heating electronic components in electric de-icing equipment; double-sided heat dissipation of the heat dissipation unit; simultaneous installation of multiple components; excellent conductivity; and resistance to component clamping forces and vibrations.

Description

Technical Field

[0001] This utility model belongs to the technical field of electric de-icing equipment, and in particular relates to an air-cooled integrated heat dissipation valve group for electric de-icing equipment. Background Technology

[0002] De-icing equipment is a specialized device used for de-icing power transmission lines. Under extreme weather conditions, transmission lines are prone to ice accumulation, posing a threat to power grid safety. DC de-icing devices apply direct current to the transmission lines, generating Joule heating to melt the ice from the conductors. The power devices in the de-icing equipment generate heat during operation, requiring a matching cooling valve assembly for heat dissipation. With technological advancements, mobile de-icing equipment has been developed to improve resource utilization and reduce construction and maintenance costs. This equipment is lightweight, compact, and easily movable, allowing it to be deployed to multiple substations for de-icing operations. This necessitates a matching air-cooled integrated cooling valve assembly with strong heat dissipation capacity, a compact and robust structure, resistance to bumps and vibrations, the ability to withstand the installation pressure requirements of electronic components, and the ability to prevent contact heating when carrying current. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an integrated air-cooled heat dissipation valve assembly for electric de-icing equipment, which can efficiently dissipate heat from the heat-generating electronic components in the electric de-icing equipment, can install multiple components at the same time, has excellent conductivity and can withstand the clamping force of component installation, is resistant to bumps and vibrations, is small in size, and is flexible and convenient to install.

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

[0005] A wind-cooled integrated heat dissipation valve assembly for electric de-icing equipment includes a heat dissipation unit, pressure plate I, pressure plate II, supporting vertical plate, top bolt, and pad. The supporting vertical plate is fixedly connected between pressure plate I and pressure plate II, forming a frame structure. The heat dissipation unit and heating elements are disposed within the frame structure. There are N heating elements and N+1 heat dissipation units, where N is an integer. The heat dissipation units and heating elements are stacked on top of each other. A pad is provided between the heat dissipation unit and pressure plate II. The top bolt is threadedly connected to pressure plate II, and the bottom end of the top bolt abuts against the pad. Insulating blocks are connected to both sides of the heat dissipation unit. The insulating blocks have a U-shaped structure, and the supporting vertical plate is placed within the U-shaped structure, allowing the heat dissipation unit to slide between the supporting vertical plates. The heat dissipation unit is composed of two identical heat dissipation blocks welded together.

[0006] The heat dissipation unit includes heat dissipation block one and heat dissipation block two with identical structures. The two opposite sides of heat dissipation block one and heat dissipation block two are respectively the mounting surface and the welding surface. The welding surfaces of heat dissipation block one and heat dissipation block two are welded together. Heat exchange pipes are connected to the mounting surfaces of heat dissipation block one and heat dissipation block two. The mounting surface and the surface of the heat exchange pipe are on the same plane. The thickness of the mounting surface is thicker than the thickness of the welding surface.

[0007] A ventilation channel is provided in the middle of heat sink one or heat sink two. Several load-bearing teeth are provided in the ventilation channel, which divides the ventilation channel into several air channels. The air channels are divided into several small air channels by the heat sink teeth arranged in parallel with each other.

[0008] The surface roughness of the mounting surface is below 3.2 μm.

[0009] The heat spreader is a sintered heat pipe or a channel heat pipe.

[0010] The heat sink 1 and heat sink 2 are integrally formed from aluminum alloy.

[0011] The top bolt has a spherical protrusion at the bottom, and the pad has a spherical groove structure, with the spherical protrusion structure and the spherical groove structure cooperating.

[0012] The pressure plate I has threaded holes on both ends; the support plate has through holes, and the pressure plate I and the support plate are fixedly connected by fastening bolts, threaded holes, and through holes.

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

[0014] A wind-cooled integrated heat dissipation valve assembly for power de-icing equipment adopts a press-fit structure, with all components integrated and press-fitted within a frame structure, resulting in a compact and rational design. It efficiently dissipates heat from the heat-generating electronic components in the power de-icing equipment. The heat dissipation unit employs double-sided cooling from both top and bottom, using a combination of heat pipes and air cooling. It can accommodate multiple components simultaneously, possessing excellent conductivity while withstanding component clamping forces, resisting bumps and vibrations, and is small in size, lightweight, and flexible and convenient to install. Specific advantages include:

[0015] 1. The heat dissipation unit adopts a double-base plate integral extruded profile, which is formed into a single structure through precision processing and welding, making it sturdy and robust with excellent heat dissipation performance. The heat sink is equipped with ventilation chambers, heat dissipation teeth and support teeth. When the cooling air passes through the ventilation chambers, it can efficiently remove heat and ensure that the components operate within a safe temperature range.

[0016] 2. The combination of pressure plates, supporting uprights, and heat dissipation units forms a U-shaped frame structure. This compact structure occupies little space, making it suitable for use in mobile ice-melting equipment. The heat dissipation unit is made of aluminum alloy, which significantly reduces the weight of the valve assembly while ensuring excellent heat dissipation performance, facilitating equipment movement and installation.

[0017] 3. The heat dissipation unit adopts heat pipe + air cooling technology, which enhances the heat conduction and dissipation capabilities and avoids localized overheating. The heat dissipation unit is formed into a single structure through welding, which is sturdy, robust, and impact-resistant, meeting the requirements of the vehicle environment and maintaining stable operation even in bumpy and vibrating environments.

[0018] 4. The heat dissipation unit and components adopt a modular assembly method. The number of components and heat dissipation units can be flexibly adjusted according to the capacity of the ice melting device, which facilitates equipment upgrades and maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the heat dissipation unit.

[0021] Figure 3 This is a cross-sectional view of the heat sink.

[0022] Figure 4 This is a structural diagram of the mounting surface.

[0023] Figure 5 This is a schematic diagram of the insulating block.

[0024] Figure 6 This is the front view of pressure plate I.

[0025] Figure 7 This is a side view of pressure plate I.

[0026] Figure 8 This is the front view of pressure plate II.

[0027] Figure 9 This is a side view of pressure plate II.

[0028] Figure 10 This is the front view of the supporting panel.

[0029] Figure 11 This is a cross-sectional view of the supporting upright.

[0030] Figure 12 This is a schematic diagram of the top bolt structure.

[0031] Figure 13 This is a schematic diagram of the preload screw.

[0032] Figure 14 This is a cross-sectional view of the preload screw.

[0033] In the diagram: 1. Pressure plate I; 2. Fastening bolt; 3. Support plate; 4. Valve assembly mounting screw hole; 5. Pressure plate II; 6. Heat dissipation unit; 7. Component; 8. Spacer; 9. Top bolt; 10. Heat dissipation block one; 11. Heat dissipation block two; 12. Insulating block; 13. Fastening bolt; 14. Heat spreader; 15. Mounting surface; 16. Welding surface; 17. U-shaped structure; 18. Mounting countersunk hole; 19. Mounting threaded hole; 20. Top bolt mating screw hole; 21. Mounting through hole; 22. Disc spring; 23. Large flat washer; 24. Retaining ring; 25. Pin; 26. Preload screw; 27. Preload rod; 28. Long oval through hole; 29. ​​External thread; 30. Hollow structure; 31. Limiting protrusion. Detailed Implementation

[0034] 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.

[0035] See Figures 1-14 A wind-cooled integrated heat dissipation valve assembly for electric de-icing equipment includes a heat dissipation unit 6, pressure plate I1, pressure plate II5, supporting vertical plate 3, top bolt 9, and pad 8. The supporting vertical plate 3 is fixedly connected between pressure plate I1 and pressure plate II5, forming a frame structure. The heat dissipation unit 6 and heating elements 7 are housed within this frame structure. There are N heating elements 7 and N+1 heat dissipation units 6, where N is an integer. The heat dissipation units 6 and heating elements 7 are stacked on top of each other. A pad 8 is provided between the top heat dissipation unit 6 and pressure plate II5, and the bottom heat dissipation unit 6 is directly attached to pressure plate I1. The top bolt 9 is threaded to pressure plate II5, and its bottom end abuts against the pad 8, ensuring uniform force distribution across the valve assembly and meeting the clamping pressure requirements of the elements 7. Insulating blocks 12 are connected to both sides of the heat dissipation unit 6. The insulating blocks 12 are U-shaped structures 17. The supporting uprights 3 are placed inside the U-shaped structures 17, so that the heat dissipation unit 6 can slide between the supporting uprights 3.

[0036] The bottom surface of the U-shaped structure 17 of the insulating block 12 has a countersunk hole 18. The fastening bolt 13 passes through the insulating block 12 and connects to the heat dissipation unit 6. The top of the fastening bolt 13 is lower than the bottom surface of the U-shaped structure 17 of the insulating block 12. During the assembly of this air-cooled integrated heat dissipation valve assembly, the clamping force between the heat dissipation unit 6 and the heating element 7 is adjusted by controlling the thickness of the pad 8 and the screwing depth of the top bolt 9. During the assembly of this air-cooled integrated heat dissipation valve assembly, the support plate 3 is placed in the U-shaped structure 17 of the insulating block 12. The heat dissipation unit 6 can slide and adjust longitudinally along the support plate 3, and the front and rear positions of the heat dissipation unit 6 can be restricted.

[0037] The heat dissipation unit includes heat sink 10 and heat sink 21 with identical structures. Both heat sink 10 and heat sink 21 are integrally extruded structures made of aluminum alloy. The two opposite sides of heat sink 10 and heat sink 21 are the mounting surface 15 and the welding surface 16, respectively. A ventilation channel is provided in the middle of heat sink 10 or heat sink 21, and several load-bearing teeth are provided within the ventilation channel. These load-bearing teeth divide the ventilation channel into several air ducts, which are further divided into smaller air ducts by the parallel heat dissipation teeth. The load-bearing teeth are thicker than the heat dissipation teeth to ensure the pressure resistance of the heat sink. The heat dissipation teeth are equidistantly arranged and have the same thickness, resulting in a uniform distribution of small air ducts. Cooling air passes through these small air ducts, carrying away heat from the heat dissipation teeth and load-bearing teeth, thus completing the heat dissipation process.

[0038] The welding surfaces 16 of heat sink 10 and heat sink 2 11 are welded together. Heat exchangers 14 are connected to the mounting surfaces 15 of both heat sinks 10 and 2 11, providing rapid heat transfer and temperature equalization. The mounting surfaces 15 and the heat exchangers 14 are on the same plane, allowing the heating element to directly contact the heat exchangers 14, improving heat dissipation efficiency. The mounting surfaces 15 are thicker than the welding surfaces 16. The finely machined welding surfaces 16 of heat sinks 10 and 2 11 are tightly fitted together and welded (using methods such as soldering or friction welding), forming a single structure. The mounting surfaces 15 of the two heat sinks are located on symmetrical sides, forming a good conductor for current flow between them, preventing overheating due to poor contact during current conduction. The heat exchangers 14 are sintered heat pipes or channel heat pipes made of copper, employing heat pipe principles for high heat transfer efficiency and good temperature uniformity.

[0039] See Figures 12-14The top bolt 9 has a spherical protrusion at its bottom, and the pad 8 has a spherical groove. The spherical protrusion and groove fit together. The force on the top bolt 9 is evenly transmitted to the pad 8 through the spherical protrusion, and then to the heat dissipation unit 6 and component 7 below through the pad 8. The spherical contact avoids the uneven force or excessive local force caused by planar contact, ensuring that component 7 is evenly stressed and extending its service life. The top bolt 9 includes a preload rod 27, a preload screw 26, a retaining ring 24, and disc springs 22. The preload screw 26 has a limiting protrusion 31 on its upper part, and the retaining ring 24 is connected in the middle of the preload screw 26. Several disc springs 22 are sleeved between the limiting protrusion 31 of the preload screw 26 and the retaining ring 24. A large flat washer 23 is provided between the disc springs 22. The preload screw 26 has a hollow structure 30, and the preload rod 27 is placed inside the hollow structure 30. The bottom of the preload rod 27 has a spherical protrusion structure. The preload screw 26 and the preload rod 27 have elongated through holes 28 of the same size in the middle. The pin 25 is inserted into the elongated through hole 28 in the middle of the preload screw 26 and the preload rod 27 to limit the position of the preload rod 27 and form a preload force. The lower edge of the retaining ring 24 abuts against the pin 25. The external thread 29 of the pre-tightening screw 26 is screwed into the top bolt matching screw hole 20 in the middle of the pressure plate II. When the pre-tightening screw 26 is rotated, the disc spring 22 is deformed by force and pushes the pre-tightening rod 27 to generate pressure on the pad 8, heat dissipation unit 6, and component 7.

[0040] See Figures 1-14 Both ends of pressure plate I and pressure plate II are provided with mounting threaded holes 19; the support plate 3 is provided with mounting through holes 21. Pressure plate 1 and support plate 3 are fixedly connected by fastening bolts 2, mounting threaded holes 19, and mounting through holes 21. Pressure plate I, pressure plate II, and pad 8 are made of steel plate to meet pressure requirements. The support plate 3 is made of insulating materials with good mechanical strength, such as fiberglass RF4 and epoxy fiberglass cloth board.

[0041] This utility model can be installed on the ice-melting device in various forms, such as vertical and horizontal, through the valve assembly mounting screw holes 4 on the frame structure. Forced air cooling of the heat dissipation unit 6 is achieved by a cooling fan, efficiently dissipating the heat from the heating element 7 into the outside air, ensuring that the element 7 operates within a safe temperature range. The heat dissipation unit is a robust, sturdy, and impact-resistant structure welded together from two identical heat sinks, meeting the requirements for use in automotive environments. Even under very large clamping forces perpendicular to the heating element mounting surface 15, the structure remains sturdy and undeformed, and the flatness of the substrate bearing surface meets the requirements for electronic component mounting surfaces. Current must flow between the installed components to form a series circuit. The two heat sinks of the heat dissipation unit are made of highly conductive metal material. After welding, the welding surfaces 16 of the two heat sinks form a single, highly conductive structure, preventing overheating due to poor contact.

[0042] Through the above specific embodiments, those skilled in the art can easily implement this utility model. However, it should be understood that this utility model is not limited to the specific embodiments described above. Based on the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions. Due to space limitations and for the sake of brevity, not all of these combined solutions have been described. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wind-cooled integrated heat dissipation valve assembly for electric de-icing equipment, characterized in that, The device includes a heat dissipation unit, pressure plate I, pressure plate II, supporting upright plate, top bolt, and pads. The supporting upright plate is fixedly connected between pressure plate I and pressure plate II, forming a frame structure. The heat dissipation unit and heating elements are arranged within the frame structure. There are N heating elements and N+1 heat dissipation units, where N is an integer. The heat dissipation units and heating elements are stacked on top of each other. A pad is provided between the heat dissipation unit and pressure plate II. The top bolt is threadedly connected to pressure plate II, and the bottom end of the top bolt abuts against the pad. Insulating blocks are connected to both sides of the heat dissipation unit. The insulating blocks have a U-shaped structure, and the supporting upright plate is placed within the U-shaped structure, allowing the heat dissipation unit to slide between the supporting upright plates. The heat dissipation unit is composed of two identical heat dissipation blocks welded together.

2. The air-cooled integrated heat dissipation valve assembly for power de-icing equipment according to claim 1, characterized in that, The heat dissipation unit includes heat dissipation block one and heat dissipation block two with identical structures. The two opposite sides of heat dissipation block one and heat dissipation block two are respectively the mounting surface and the welding surface. The welding surfaces of heat dissipation block one and heat dissipation block two are welded together. Heat exchange pipes are connected to the mounting surfaces of heat dissipation block one and heat dissipation block two. The mounting surface and the surface of the heat exchange pipe are on the same plane. The thickness of the mounting surface is thicker than the thickness of the welding surface. A ventilation channel is provided in the middle of heat sink one or heat sink two. Several load-bearing teeth are provided in the ventilation channel, which divides the ventilation channel into several air channels. The air channels are divided into several small air channels by the heat sink teeth arranged in parallel with each other.

3. The air-cooled integrated heat dissipation valve assembly for power de-icing equipment according to claim 2, characterized in that, The surface roughness of the mounting surface is below 3.2 μm.

4. The air-cooled integrated heat dissipation valve assembly for power de-icing equipment according to claim 2, characterized in that, The heat spreader is a sintered heat pipe or a channel heat pipe.

5. A wind-cooled integrated heat dissipation valve assembly for power de-icing equipment according to claim 2, characterized in that, The heat sink 1 and heat sink 2 are integrally formed from aluminum alloy.

6. A wind-cooled integrated heat dissipation valve assembly for power de-icing equipment according to claim 1, characterized in that, The top bolt has a spherical protrusion at the bottom, and the pad has a spherical groove structure, with the spherical protrusion structure and the spherical groove structure cooperating.

7. A wind-cooled integrated heat dissipation valve assembly for power de-icing equipment according to claim 1, characterized in that, The pressure plate I has threaded holes on both ends; the support plate has through holes, and the pressure plate I and the support plate are fixedly connected by fastening bolts, threaded holes, and through holes.

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