Water-cooling plate structure of circuit board
The U-shaped frame and screw structure design solves the problem of cumbersome assembly and disassembly of circuit boards on water-cooled plates, enabling convenient fixing and disassembly, improving maintenance efficiency and heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN YIJIE METAL PROD CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-24
AI Technical Summary
The existing circuit board disassembly and assembly operations on the water-cooled plate are cumbersome, time-consuming, and labor-intensive, affecting maintenance efficiency.
The circuit board is conveniently fixed and disassembled by using a U-shaped frame and screw structure design, which is achieved by rotating the screw to bring the U-shaped frame closer together, and utilizing the rebound force of the spring and the fixing parts.
This technology enables convenient assembly and disassembly of the circuit board on the water-cooling plate, shortens operation time, improves maintenance efficiency, and ensures a tight fit between the circuit board and the water-cooling plate, thereby enhancing heat dissipation.
Smart Images

Figure CN224556073U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board heat dissipation technology, specifically to a water-cooled plate structure for a circuit board. Background Technology
[0002] Circuit boards, also known as PCBs, miniaturize and visualize circuits, playing an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. In the application of high-power circuit boards, poor heat dissipation may trigger over-temperature protection devices and cause the circuit to stop working. In order to ensure the stable operation of the circuit board, a water-cooled plate structure is required for heat dissipation.
[0003] However, in the existing technology, in order to ensure the heat dissipation of the circuit board, the circuit board is mostly fixed to the surface of the water cooling plate with multiple screws. When the circuit board is damaged and needs to be repaired or replaced, these screws need to be removed from the circuit board one by one before the water cooling plate can be separated from the circuit board. The operation of disassembling and assembling the circuit board fixed to the water cooling plate is relatively troublesome, time-consuming and labor-intensive, and can easily affect the maintenance efficiency of the circuit board. Utility Model Content
[0004] The purpose of this utility model is to provide a water-cooled plate structure for a circuit board. Through the structural design of the U-shaped frame and screw, the circuit board fixed on the water-cooled plate body can be easily disassembled and assembled, solving the problem that the operation of disassembling and assembling the circuit board fixed on the water-cooled plate is relatively troublesome.
[0005] This utility model is achieved through the following technical solution:
[0006] This utility model relates to a water-cooled plate structure for a circuit board, comprising a water-cooled plate body, with U-shaped frames on both sides of the water-cooled plate body, two mounting slots on the U-shaped frames, a fixing rod in each mounting slot, a spring on the outer surface of the fixing rod, a movable ring on the outer surface of one end of the fixing rod, the movable ring engaging with the mounting slot, a fixing member at the top of the movable ring, and the bottom of the fixing member engaging with the surface of the U-shaped frame. Screws are rotatably mounted on both sides of the water-cooled plate body, and threaded holes are provided on the U-shaped frames, with the outer surface of the screws engaging with the threaded holes.
[0007] Furthermore, circular grooves are provided on both sides of the water-cooled plate body, and bearings are fitted inside the circular grooves. The inner ring of the bearing is fitted with the surface of one end of the screw.
[0008] Furthermore, two stabilizing rods are provided on both sides of the water-cooled plate body, and fixing sleeves are provided at both ends of the two U-shaped frames. The outer surface of the stabilizing rods mates with the fixing sleeves.
[0009] Furthermore, the fixing component includes a vertical plate, the bottom of which is connected to the top of the movable ring one. A receiving groove is provided on the vertical plate, and a vertical rod is vertically arranged in the receiving groove. A spring two is fitted on the outer surface of the vertical rod, and a movable ring two is fitted on the outer surface of the bottom end of the vertical rod. An arc-shaped fixing block is provided on one side of the movable ring two, and the arc-shaped fixing block fits with the surface of the vertical plate.
[0010] Furthermore, a pair of guide blocks are provided at the bottom of the upright plate, and two pairs of guide grooves are provided on the U-shaped frame, with a pair of guide blocks cooperating with a pair of guide grooves.
[0011] Furthermore, two limiting grooves are provided on the upright plate, and two limiting blocks are provided on the arc-shaped fixing block, with the limiting blocks cooperating with the limiting grooves.
[0012] This utility model has the following beneficial effects:
[0013] 1. This utility model utilizes a U-shaped frame and screw structure design. By rotating two screws, the two U-shaped frames move closer together, causing the arc-shaped fixing blocks on the four fixing parts to contact and compress the two side surfaces of the circuit board. The rebound force generated by the contraction of four springs allows the four arc-shaped fixing blocks to fit tightly against the four corners on both sides of the circuit board, achieving convenient fixing of the circuit board. This facilitates easy assembly and disassembly of the circuit board fixed to the water-cooling plate body, effectively shortening the assembly and disassembly time. The operation is simple and labor-saving, ensuring the maintenance efficiency of the circuit board.
[0014] 2. This utility model, through the structural design of the fixing components, uses the arc-shaped surfaces of four arc-shaped fixing blocks to contact and compress the top side of the circuit board, causing the four springs to compress. The rebound force generated by the contraction of the four springs causes the four arc-shaped fixing blocks to press against the four corners of the top of the circuit board, thereby pressing the top of the circuit board and achieving axial fixation of the circuit board. This ensures that the circuit board is in close contact with the surface of the water-cooling plate body, thus guaranteeing the heat dissipation effect of the water-cooling plate body on the circuit board.
[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a water-cooled plate structure.
[0017] Figure 2 This is a schematic diagram of the top of the water-cooled plate structure.
[0018] Figure 3 This is a schematic diagram of the assembly structure of the water-cooled plate structure.
[0019] Figure 4 This is a structural schematic diagram of the fastener.
[0020] Figure 5 This is a schematic diagram of the U-shaped frame.
[0021] In the diagram: 1. Water-cooled plate body; 101. Stabilizing rod; 2. U-shaped frame; 201. Mounting slot; 202. Fixing rod; 203. Spring 1; 204. Movable ring 1; 205. Threaded hole; 206. Fixing sleeve; 207. Guide groove; 3. Fixing component; 301. Vertical plate; 3011. Receiving groove; 302. Vertical rod; 303. Spring 2; 304. Movable ring 2; 305. Arc-shaped fixing block; 4. Screw. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-5 This utility model provides a technical solution: a water-cooled plate structure for a circuit board, including a water-cooled plate body 1, with U-shaped frames 2 on both sides of the water-cooled plate body 1, and two stabilizing rods 101 on both sides of the water-cooled plate body 1. Fixing sleeves 206 are provided at both ends of the two U-shaped frames 2, and the outer surface of the stabilizing rods 101 cooperates with the fixing sleeves 206, so that the two U-shaped frames 2 can be close to or far away from each other on both sides of the water-cooled plate body 1, which facilitates the fixing of the circuit board.
[0024] The U-shaped frame 2 has two mounting slots 201. A fixing rod 202 is installed in the mounting slot 201. A spring 203 is fitted on the outer surface of the fixing rod 202. A movable ring 204 is fitted on the outer surface of one end of the fixing rod 202. The movable ring 204 fits into the mounting slot 201. A fixing member 3 is installed at the top of the movable ring 204. The bottom of the fixing member 3 fits into the surface of the U-shaped frame 2.
[0025] Both sides of the water-cooled plate body 1 are rotatably mounted with screws 4. Both sides of the water-cooled plate body 1 are provided with circular grooves, and bearings are fitted in the circular grooves. The inner ring of the bearing is fitted with the surface of one end of the screw 4 to ensure the rotation effect of the screw 4. The U-shaped frame 2 is provided with threaded holes 205, and the outer surface of the screw 4 is fitted with the threaded holes 205.
[0026] When fixing the repaired circuit board onto the water-cooling plate body 1, first place the circuit board flat on the water-cooling plate body 1, then simultaneously rotate the turntables on the two screws 4, causing the two screws 4 to rotate on both sides of the water-cooling plate body 1. Through the cooperation of the stabilizing rod 101 and the fixing sleeve 206, the two U-shaped frames 2 are brought closer to each other on both sides of the water-cooling plate body 1, so that the arc-shaped fixing blocks 305 on the four fixing parts 3 contact and press against the two side surfaces of the circuit board. Continue to rotate the two screws 4, so that the reaction force generated by the arc-shaped fixing blocks 305 pressing against the circuit board pushes the upright plate 301 to slide on the surface of the U-shaped frame 2. The movement of 301 causes the upright plate 301 to drive the movable ring 204 to slide on the outer surface of the fixing rod 202 in the mounting groove 201. This causes the spring 203 to contract after being squeezed by the movable ring 204. The rebound force generated by the contraction of the four springs 203 allows the four arc-shaped fixing blocks 305 to fit tightly against the four corners on both sides of the circuit board, forming a four-corner fixation of the circuit board. This allows the circuit board to be stably fixed between the four fixing parts 3. Similarly, when it is necessary to remove the circuit board from the water-cooled plate body 1, the above operation is repeated in the opposite direction to achieve quick removal of the circuit board from the water-cooled plate body 1.
[0027] The fixing component 3 includes a vertical plate 301, the bottom of which is connected to the top of the movable ring 204. A pair of guide blocks are provided at the bottom of the vertical plate 301. Two pairs of guide grooves 207 are provided on the U-shaped frame 2. The pair of guide blocks cooperate with the pair of guide grooves 207 to ensure the sliding effect of the vertical plate 301 on the U-shaped frame 2. A receiving groove 3011 is provided on the vertical plate 301, and a vertical rod 302 is vertically arranged inside the receiving groove 3011. A spring 3 is fitted onto the outer surface of the vertical rod 302. 03. The bottom outer surface of the upright 302 is fitted with a movable ring 304. An arc-shaped fixing block 305 is provided on one side of the movable ring 304. The arc-shaped fixing block 305 fits with the surface of the upright plate 301. Two limiting grooves are provided on the upright plate 301. Two limiting blocks are provided on the arc-shaped fixing block 305. The limiting blocks and limiting grooves fit together to ensure the sliding effect of the arc-shaped fixing block 305 on the upright plate 301, which facilitates the fixing of the top of the circuit board by the four arc-shaped fixing blocks 305.
[0028] During the process of fixing the circuit board with the four arc-shaped fixing blocks 305, as the four arc-shaped fixing blocks 305 move towards the four corners on both sides of the circuit board, the arc-shaped surfaces of the arc-shaped fixing blocks 305 contact and compress with the top side of the circuit board, causing the arc-shaped fixing blocks 305 to be subjected to upward pressure. This causes the arc-shaped fixing blocks 305 to slide upward on the surface of the upright plate 301. As the arc-shaped fixing blocks 305 move upward, the movable ring 304 moves upward in the receiving groove 3011 and slides upward on the outer surface of the upright rod 302. This causes the spring 303, which is sleeved on the outer surface of the upright rod 302, to be compressed by the movable ring 304 and contract until the bottom of the four arc-shaped fixing blocks 305 is pressed tightly against the two sides of the circuit board. After the arc-shaped surfaces of the four arc-shaped fixing blocks 305 are pressed tightly against the four corners at the top of the circuit board, the rebound force generated by the compression of the four springs 303 causes the four arc-shaped fixing blocks 305 to press the four corners at the top of the circuit board, thus achieving axial fixation of the circuit board.
[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A water-cooled plate structure for a circuit board, comprising a water-cooled plate body (1), characterized in that: Both sides of the water-cooled plate body (1) are fitted with U-shaped frames (2); The U-shaped frame (2) has two mounting slots (201). A fixing rod (202) is provided in the mounting slot (201). A spring (203) is fitted on the outer surface of the fixing rod (202). A movable ring (204) is fitted on the outer surface of one end of the fixing rod (202). The movable ring (204) fits into the mounting slot (201). A fixing member (3) is provided at the top of the movable ring (204). The bottom of the fixing member (3) fits into the surface of the U-shaped frame (2). Both sides of the water-cooled plate body (1) are rotatably mounted with screws (4), and the U-shaped frame (2) is provided with threaded holes (205), and the outer surface of the screws (4) is engaged with the threaded holes (205).
2. The water-cooled plate structure for a circuit board according to claim 1, characterized in that, Both sides of the water-cooled plate body (1) are provided with circular grooves, and bearings are fitted in the circular grooves. The inner ring of the bearing is fitted with one end surface of the screw (4).
3. The water-cooled plate structure for a circuit board according to claim 2, characterized in that, Two stabilizing rods (101) are provided on both sides of the water-cooled plate body (1), and two fixing sleeves (206) are provided at both ends of the two U-shaped frames (2). The outer surface of the stabilizing rod (101) cooperates with the fixing sleeve (206).
4. A water-cooled plate structure for a circuit board according to any one of claims 1-3, characterized in that, The fixing component (3) includes a vertical plate (301), the bottom of which is connected to the top of a movable ring (204). A receiving groove (3011) is provided on the vertical plate (301), and a vertical rod (302) is vertically arranged in the receiving groove (3011). A spring (303) is fitted on the outer surface of the vertical rod (302), and a movable ring (304) is fitted on the outer surface of the bottom end of the vertical rod (302). An arc-shaped fixing block (305) is provided on one side of the movable ring (304), and the arc-shaped fixing block (305) fits with the surface of the vertical plate (301).
5. The water-cooled plate structure for a circuit board according to claim 4, characterized in that, The bottom of the upright plate (301) is provided with a pair of guide blocks, and the U-shaped frame (2) is provided with two pairs of guide grooves (207), and the pair of guide blocks cooperate with the pair of guide grooves (207).
6. The water-cooled plate structure for a circuit board according to claim 5, characterized in that, The upright plate (301) has two limiting grooves, and the arc-shaped fixing block (305) is provided with two limiting blocks, which cooperate with the limiting grooves.