Aluminum-based heat dissipation type circuit board

Abstract

The utility model relates to the technical field of aluminum-based heat dissipation, in particular to an aluminum-based heat dissipation type circuit board. The aluminum-based heat dissipation type circuit board comprises aluminum-based heat dissipation type circuit board bodies, a heat dissipation assembly is arranged outside the aluminum-based heat dissipation type circuit board bodies, the heat dissipation assembly is used for conducting heat dissipation on the multiple aluminum-based heat dissipation type circuit board bodies, the heat dissipation assembly comprises a cold water box and a partition plate, the inner walls of the cold water box and the partition plate are each of a hollow structure, and the cold water box is communicated with the interior of the partition plate. According to the utility model, the cold water box is filled with cold water, the cold water in the cold water box flows into the partition plate, a plurality of aluminum-based heat dissipation type circuit board main bodies are horizontally inserted into the inner wall of the cold water box, and the cold water box and the partition plate are attached to the outer wall of the aluminum-based heat dissipation type circuit board main bodies for cooling; a user can conveniently carry out cooling and heat dissipation on a plurality of aluminum-based heat dissipation type circuit board main bodies at the same time, and the heat dissipation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminum base heat dissipation technical field, specifically, relate to a kind of aluminum base heat dissipation type circuit board. BACKGROUND

[0002] Aluminum base heat dissipation type circuit board is a kind of metal base copper-clad plate with good heat dissipation performance using aluminum alloy material as substrate, and it is usually composed of three layers of structure, namely circuit layer (copper foil), insulating layer and metal base layer. Compared with traditional FR-4 circuit board, aluminum base heat dissipation type circuit board can carry higher current under the same line width, thickness and other conditions. In addition, the aluminum substrate also meets the environmental protection requirements and does not contain harmful substances. Aluminum base heat dissipation type circuit board is widely used in LED lighting, automobile, computer and other equipment driving devices, audio equipment and power system industries, especially in LED energy-saving lamps. Due to its excellent heat dissipation performance and high current carrying capacity, aluminum substrate has become the preferred material.

[0003] There are many existing technologies for aluminum base heat dissipation plate, such as:

[0004] Chinese patent application No. CN201920929017.3 discloses an aluminum base heat dissipation type circuit board, which comprises a protection box and a circuit board. The circuit board comprises a metal base layer, a circuit layer and an insulating layer. The metal base layer is located on the lower surface of the circuit layer, and the insulating layer is located on the upper surface of the circuit layer. A plurality of circuit boards are placed in the protection box. The bottom of the metal base layer is bonded with a lower connecting plate, and the top of the insulating layer is provided with an upper connecting plate. The utility model has the beneficial effects that the upper connecting plate is fixed on the upper surface of the circuit board by the first screw on the top of the circuit board, and the lower connecting plate and the connecting seat are fixed on the lower surface of the circuit board by the second screw on the bottom of the circuit board, thereby protecting the upper and lower surfaces of the circuit board. A clamping groove is formed in the upper connecting plate, and the connecting base can be clamped into the clamping groove, thereby realizing the splicing of two circuit boards and fixing them together in parallel, preventing the collision between the circuit boards during the bumpy road section.

[0005] However, in use, when multiple aluminum base heat dissipation type circuit boards are stacked together, the heat transfer is hindered due to the limited contact area between them, resulting in reduced overall heat dissipation efficiency. The heat on the circuit board cannot be dissipated in time, which may cause the temperature of the circuit board to rise, thereby affecting the performance and stability of the equipment. Therefore, we propose an aluminum base heat dissipation type circuit board. UTILITY MODEL CONTENTS

[0006] The utility model aims to solve the above-mentioned shortcomings and provide an aluminum base heat dissipation type circuit board.

[0007] To achieve the above object, the utility model provides a kind of aluminum base heat dissipation type circuit board, including aluminum base heat dissipation type circuit board main body, the aluminum base heat dissipation type circuit board main body outside is equipped with heat dissipation component, the heat dissipation component is used to dissipate heat to multiple aluminum base heat dissipation type circuit board main body, the heat dissipation component includes cold water box and partition plate, wherein:

[0008] The inner wall of the cold water box and the partition plate is a hollow structure, and the inside of the cold water box and the partition plate is connected.

[0009] As a further improvement of the technical solution, the outer side of the aluminum base heat dissipation type circuit board main body is provided with a cold water box, a plurality of partition plates are fixedly connected to the inner wall of the cold water box, the surface of the aluminum base heat dissipation type circuit board main body is attached to the inner wall of the cold water box, and the surface of the aluminum base heat dissipation type circuit board main body is attached to the surface of the partition plate.

[0010] As a further improvement of the technical solution, a plurality of circular tubes are symmetrically fixedly connected to the inner wall of the cold water box, a first spring is arranged inside the circular tube, the end of the first spring is fixedly connected to the inner wall of the cold water box, a circular groove is arranged on the inner wall of the cold water box, the end of the first spring passes through the inner wall of the circular groove without contacting the inner wall of the circular groove, a push plate is fixedly connected to the end of the first spring, and the outer side of the push plate is tightly attached to the outer side of the aluminum base heat dissipation type circuit board main body.

[0011] As a further improvement of the technical solution, a plurality of square tubes are symmetrically fixedly connected to the inner walls on both sides of the cold water box, a plurality of clamping blocks are slidingly connected to the inner walls of the square tubes, the clamping blocks are in a stepped shape from left to right, two clamping grooves are arranged on both sides of the aluminum base heat dissipation type circuit board main body, the inner wall of the clamping groove is clamped and adapted to the outer wall of the clamping block, a sliding rod is fixedly connected to the outer side of the clamping block, the outer wall of the sliding rod slides on the outer side of the cold water box, a pull plate is fixedly connected to the end of the sliding rod, a second spring is fixedly connected to the outer side of the clamping block, the second spring is fixedly sleeved on the outer wall of the sliding rod, and the end of the second spring is fixedly connected to the inner wall of the cold water box.

[0012] As a further improvement of the technical solution, an outflow pipe is fixedly connected to one side of the cold water box, the end of the outflow pipe is fixedly connected to the port of a refrigerator, the refrigerator is fixedly installed above the cold water box, the other port of the refrigerator is fixedly connected to a flow guide pipe, the end of the flow guide pipe is fixedly connected to the water inlet of a water pump, the water pump is fixedly installed above the cold water box, the water outlet at the end of the water pump is fixedly connected to an inflow pipe, the end of the inflow pipe is fixedly connected to the other side of the cold water box, and the inside of the outflow pipe and the inside of the inflow pipe are communicated with the inside of the cold water box.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The aluminium-based heat-dissipation type circuit board, by filling cold water in the cold water box, the cold water in the cold water box flows into the partition plate, the plurality of aluminium-based heat-dissipation type circuit board bodies are horizontally inserted into the inner wall of the cold water box, the cold water box and the partition plate are attached to the outer wall of the aluminium-based heat-dissipation type circuit board body to cool, the user can conveniently cool the plurality of aluminium-based heat-dissipation type circuit board bodies, and the heat dissipation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the pull plate structure schematic diagram of the utility model;

[0017] Figure 3 It is the Figure 2 structure schematic diagram of A place of the utility model;

[0018] Figure 4 It is the partition plate structure schematic diagram of the utility model;

[0019] Figure 5 It is the Figure 4 structure schematic diagram of B place of the utility model.

[0020] The meaning of each reference sign in the drawing is as follows: 1, aluminium-based heat-dissipation type circuit board body; 10, clamping groove; 2, heat-dissipation assembly; 20, cold water box; 201, round groove; 21, partition plate; 22, round pipe; 23, first spring; 231, push plate; 24, square pipe; 25, clamping block; 251, sliding rod; 252, pull plate; 253, second spring; 26, outflow pipe; 27, refrigerator; 271, flow guide pipe; 28, water pump; 29, inflow pipe. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Aluminum-based heat-dissipating circuit board is a kind of metal-based copper-clad plate with good heat dissipation performance, which uses aluminum alloy material as substrate. The aluminum-based heat-dissipating circuit board is usually composed of three layers of structure, namely, circuit layer (copper foil), insulating layer and metal-based layer. Compared with traditional FR-4 circuit board, the aluminum-based heat-dissipating circuit board can carry higher current under the same line width and thickness. In addition, the aluminum substrate meets the environmental protection requirements and does not contain harmful substances. The aluminum-based heat-dissipating circuit board is widely used in LED lighting, automobile, computer and other equipment driving devices, audio equipment and power system industries. Especially in LED energy-saving lamps, due to its excellent heat dissipation performance and high current carrying capacity, aluminum substrate has become the preferred material.

[0023] Referring to Figures 1-5 As shown in the drawings, the embodiment provides an aluminum-based heat-dissipating circuit board, which comprises an aluminum-based heat-dissipating circuit board body 1. When multiple aluminum-based heat-dissipating circuit boards are stacked together, the heat transfer will be hindered due to the limited contact area between them, resulting in reduced overall heat dissipation efficiency. The heat on the circuit board cannot be dissipated in time, which will cause the temperature of the circuit board to rise, thereby affecting the performance and stability of the equipment. Therefore, the aluminum-based heat-dissipating circuit board body 1 is provided with a heat dissipation assembly 2. The heat dissipation assembly 2 is used for dissipating heat of the multiple aluminum-based heat-dissipating circuit board bodies 1. The heat dissipation assembly 2 comprises a cold water box 20 and a partition plate 21, wherein:

[0024] The inner walls of the cold water box 20 and the partition plate 21 are hollow structures, and the interiors of the cold water box 20 and the partition plate 21 are connected. Cold water is injected into the interiors of the cold water box 20 and the partition plate 21. The cold water box 20 and the partition plate 21 jointly cool and dissipate heat of the multiple aluminum-based heat-dissipating circuit board bodies 1.

[0025] The improvement of the embodiment is that:

[0026] The cold water box 20 is filled with cold water. The cold water in the cold water box 20 flows into the interior of the partition plate 21. The multiple aluminum-based heat-dissipating circuit board bodies 1 are horizontally inserted into the inner wall of the cold water box 20. The cold water box 20 and the partition plate 21 are attached to the outer wall of the aluminum-based heat-dissipating circuit board body 1 for cooling and temperature reduction. This facilitates the user to cool and dissipate heat of the multiple aluminum-based heat-dissipating circuit board bodies 1 at the same time, and improves the heat dissipation efficiency.

[0027] In order to cool multiple aluminum-based heat-dissipating circuit board bodies 1, a cold water box 20 is arranged outside the aluminum-based heat-dissipating circuit board body 1, multiple partition plates 21 are fixedly connected to the inner wall of the cold water box 20, the surface of the aluminum-based heat-dissipating circuit board body 1 is attached to the inner wall of the cold water box 20, and the surface of the aluminum-based heat-dissipating circuit board body 1 is attached to the surface of the partition plate 21. The inside of the cold water box 20 is filled with cold water, which flows into the inside of the partition plate 21, and the multiple aluminum-based heat-dissipating circuit board bodies 1 are inserted horizontally into the inside of the cold water box 20. The aluminum-based heat-dissipating circuit board body 1 is slid on the inner wall of the cold water box 20, and the cold water box 20 and the partition plate 21 are attached to the outer wall of the aluminum-based heat-dissipating circuit board body 1 for cooling and heat dissipation.

[0028] In order to prevent the aluminum-based heat-dissipating circuit board body 1 from falling from the inside of the cold water box 20, multiple square tubes 24 are symmetrically fixedly connected to the inner wall of the cold water box 20, multiple clamping blocks 25 are slidably connected to the inner wall of the square tube 24, the clamping block 25 is in a stepped shape from left to right, two clamping grooves 10 are arranged on the two sides of the aluminum-based heat-dissipating circuit board body 1, the inner wall of the clamping groove 10 is adapted to be clamped with the outer wall of the clamping block 25, a sliding rod 251 is fixedly connected to the outer side of the clamping block 25, the sliding rod 251 is slidably connected to the outer side of the cold water box 20, a pull plate 252 is fixedly connected to the end of the sliding rod 251, a second spring 253 is fixedly connected to the outer side of the clamping block 25, the second spring 253 is fixedly sleeved on the outer wall of the sliding rod 251, and the end of the second spring 253 is fixedly connected to the inner wall of the cold water box 20. When the outer wall of the aluminum-based heat-dissipating circuit board body 1 touches the outer side of the clamping block 25, it will be pressed along the inclined surface of the clamping block 25, and the clamping block 25 will slide to the inner wall of the square tube 24 under the pressure. The end of the clamping block 25 is slidably connected to the outer side of the aluminum-based heat-dissipating circuit board body 1, and when the outer side of the aluminum-based heat-dissipating circuit board body 1 is attached to the inner wall of the cold water box 20, the clamping block 25 enters the inner wall of the clamping groove 10 on both sides of the aluminum-based heat-dissipating circuit board body 1. The elastic force of the second spring 253 drives the clamping block 25 to pop out of the inner wall of the clamping groove 10, and the clamping block 25 is clamped in the inner wall of the clamping groove 10. At this time, the aluminum-based heat-dissipating circuit board body 1 is clamped in the cold water box 20 by the clamping block 25 to limit its displacement. The pull plate 252 drives the sliding rod 251 to slide on the outer side of the cold water box 20, the sliding rod 251 drives the clamping block 25 to slide on the inner wall of the square tube 24, and the clamping block 25 is removed from the inside of the clamping groove 10. The aluminum-based heat-dissipating circuit board body 1 can be removed.

[0029] Considering that the user is inconvenient to take out the aluminum-based heat-dissipation type circuit board body 1, the inner wall of the cold water box 20 is symmetrically and fixedly connected with a plurality of circular pipes 22, the first spring 23 is arranged in the circular pipe 22, the end of the first spring 23 is fixedly connected with the inner wall of the cold water box 20, the inner wall of the cold water box 20 is provided with a circular groove 201, the end of the first spring 23 passes through the inner wall of the circular groove 201 and is not in contact with the inner wall of the circular groove 201, the end of the first spring 23 is fixedly connected with a push plate 231, the outer side of the push plate 231 is closely attached to the outer side of the aluminum-based heat-dissipation type circuit board body 1, when the clamping block 25 is away from the inside of the clamping groove 10, the first spring 23 is popped out of the inside of the circular pipe 22, the elastic force of the first spring 23 drives the push plate 231 to pop out the aluminum-based heat-dissipation type circuit board body 1 from the inside of the cold water box 20, so that the user can conveniently take down the aluminum-based heat-dissipation type circuit board body 1.

[0030] In order to circulate and refrigerate the water in the cold water box 20, the cold water box 20 is fixedly connected with an outflow pipe 26 on one side, the end of the outflow pipe 26 is fixedly connected with the port of a refrigeration device 27, the refrigeration device 27 is fixedly installed above the cold water box 20, the other port of the refrigeration device 27 is fixedly connected with a flow guide pipe 271, the end of the flow guide pipe 271 is fixedly connected with the water inlet of a water pump 28, the water pump 28 is fixedly installed above the cold water box 20, the water outlet at the end of the water pump 28 is fixedly connected with an inflow pipe 29, the end of the inflow pipe 29 is fixedly connected with the other side of the cold water box 20, the inside of the outflow pipe 26 and the inside of the inflow pipe 29 are communicated with the inside of the cold water box 20, the cold water in the cold water box 20 flows to the inside of the refrigeration device 27 through the outflow pipe 26 to be refrigerated, and then flows to the water pump 28 through the inner wall of the flow guide pipe 271, the water pump 28 sends the refrigerated cold water to the inside of the cold water box 20 through the inflow pipe 29 to circulate and cool the cold water in the cold water box 20.

[0031] In summary, the working principle of the scheme is as follows:

[0032] The utility model discloses aluminum base heat dissipation type circuit board is in specific use, fills cold water in cold water box 20 inside, and cold water will follow and flow into the inside of the partition board 21, and the multiple aluminum base heat dissipation type circuit board main part 1 horizontal to cold water box 20 inside inserts, and the aluminum base heat dissipation type circuit board main part 1 both sides slide in the inner wall of cold water box 20, when the outer wall of aluminum base heat dissipation type circuit board main part 1 touches the outside of the clamping block 25, will follow and extrude the inclined plane of clamping block 25, and clamping block 25 is extruded and slides to the inner wall of square tube 24, and the end of clamping block 25 slides to the outside of aluminum base heat dissipation type circuit board main part 1, and the outside of aluminum base heat dissipation type circuit board main part 1 extrudes the push plate 231 with first spring 23, when the outside of aluminum base heat dissipation type circuit board main part 1 sticks to the inner wall of cold water box 20, clamping block 25 enters the inner wall of the clamping groove 10 of aluminum base heat dissipation type circuit board main part 1 both sides, and the elasticity of second spring 253 drives clamping block 25 and pops to the inner wall of clamping groove 10, and clamping block 25 is clamped in the inner wall of clamping groove 10, and at this moment, aluminum base heat dissipation type circuit board main part 1 is clamped in cold water box 20 inside by clamping block 25 and is limited its displacement, and the multiple aluminum base heat dissipation type circuit board main part 1 are all clamped in cold water box 20 inside, and the cold water of cold water box 20 and the inside of partition board 21 sticks to the outer wall of aluminum base heat dissipation type circuit board main part 1 and carries out heat dissipation cooling, open water pump 28 and refrigerator 27, and the cold water in the inside of cold water box 20 flows to the inside of refrigerator 27 through flow-out pipe 26 and carries out refrigeration, and then from the inner wall of flow guide pipe 271 to water pump 28, and water pump 28 transports the refrigerated cold water into the inside of cold water box 20 through inflow pipe 29 and carries out circulating cooling to the cold water in the inside of cold water box 20, prevent the cold water in the inside of cold water box 20 from being heated by the temperature of aluminum base heat dissipation type circuit board main part 1, and affect the effect of cooling and heat dissipation, when needing to take out aluminum base heat dissipation type circuit board main part 1 from the inside, pull the pull plate 252, and the pull plate 252 drives the sliding rod 251 to slide to the outside of cold water box 20, and the sliding rod 251 drives clamping block 25 to slide to the inner wall of square tube 24, and after clamping block 25 leaves the inside of clamping groove 10, first spring 23 pops out the inside of round tube 22, and the elasticity of first spring 23 drives push plate 231 and pops out aluminum base heat dissipation type circuit board main part 1 from the inside of cold water box 20, and it is convenient for the user to take down aluminum base heat dissipation type circuit board main part 1.

[0033] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the utility model and are not intended to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An aluminum-based heat dissipating wiring board comprising an aluminum-based heat dissipating wiring board main body (1), characterized by: The aluminum-based heat-dissipation type circuit board body (1) is externally provided with a heat-dissipation assembly (2), the heat-dissipation assembly (2) is used for dissipating heat of a plurality of aluminum-based heat-dissipation type circuit board bodies (1), the heat-dissipation assembly (2) comprises a cold water box (20) and a partition plate (21), wherein: The inner walls of the cold water box (20) and the partition plate (21) are hollow structures, and the cold water box (20) and the partition plate (21) are connected in the inside.

2. The aluminum-based heat dissipating wiring board according to claim 1, wherein: The aluminum-based heat-dissipation type circuit board body (1) is externally provided with a cold water box (20), a plurality of partition plates (21) are fixedly connected to the inner wall of the cold water box (20), the surface of the aluminum-based heat-dissipation type circuit board body (1) is attached to the inner wall of the cold water box (20), and the surface of the aluminum-based heat-dissipation type circuit board body (1) is attached to the surface of the partition plate (21).

3. The aluminum-based heat-dissipating wiring board according to claim 2, wherein: The inner wall of the cold water box (20) is fixedly connected with a plurality of circular pipes (22) in a symmetrical manner, the first spring (23) is arranged in the inside of the circular pipe (22), the end of the first spring (23) is fixedly connected to the inner wall of the cold water box (20), the inner wall of the cold water box (20) is provided with a circular groove (201), the end of the first spring (23) penetrates through the inner wall of the circular groove (201) and is not in contact with the inner wall of the circular groove (201), the end of the first spring (23) is fixedly connected with a push plate (231), and the outer side of the push plate (231) is tightly attached to the outer side of the aluminum-based heat-dissipation type circuit board body (1).

4. The aluminum-based heat-dissipating wiring board according to claim 2, wherein: The inner walls of the cold water box (20) are fixedly connected with a plurality of square pipes (24) in a symmetrical manner on both sides, a plurality of clamping blocks (25) are slidably connected to the inner walls of the square pipes (24), the clamping blocks (25) are in a left-to-right stepped shape, both sides of the aluminum-based heat-dissipation type circuit board body (1) are provided with two clamping grooves (10), the inner walls of the clamping grooves (10) are clamped and matched with the outer walls of the clamping blocks (25), the outer sides of the clamping blocks (25) are fixedly connected with sliding rods (251), the outer walls of the sliding rods (251) slide on the outer side of the cold water box (20), the ends of the sliding rods (251) are fixedly connected with pull plates (252), the outer sides of the clamping blocks (25) are fixedly connected with second springs (253), the second springs (253) are fixedly sleeved on the outer walls of the sliding rods (251), and the ends of the second springs (253) are fixedly connected with the inner wall of the cold water box (20).

5. The aluminum-based heat-dissipating wiring board according to claim 2, wherein: One side of the cold water box (20) is fixedly connected with an outflow pipe (26), the end of the outflow pipe (26) is fixedly connected with the port of a refrigerating device (27), the refrigerating device (27) is fixedly installed above the cold water box (20), the other port of the refrigerating device (27) is fixedly connected with a flow guide pipe (271), the end of the flow guide pipe (271) is fixedly connected with the water inlet of a water pump (28), the water pump (28) is fixedly installed above the cold water box (20), the water outlet at the end of the water pump (28) is fixedly connected with an inflow pipe (29), the end of the inflow pipe (29) is fixed to the other side of the cold water box (20), and the inside of the outflow pipe (26) and the inside of the inflow pipe (29) are communicated with the inside of the cold water box (20).

Images