A circuit board heat dissipation device
By integrating a frame and a bidirectional ball screw system driven by a servo motor, the problem of quick plugging and unplugging of circuit board heat dissipation equipment is solved, enabling multiple flexible adjustments to heat dissipation and improving the heat dissipation effect and ease of disassembly and assembly of circuit boards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANYUNGANG GUOAN ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-05
Smart Images

Figure CN224329798U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board heat dissipation technology, specifically a circuit board heat dissipation device. Background Technology
[0002] A circuit board (PCB) is the support structure and electrical connection carrier for electronic components. It is manufactured using electronic printing technology, hence the name "printed" circuit board. Its core function is to provide mechanical support and electrical interconnection for electronic components, enabling miniaturized and standardized circuit production. PCBs generate heat during use, requiring heat dissipation equipment to maintain normal operation. This equipment effectively reduces the temperature of the PCB in electronic devices, ensuring the stability and reliability of circuit components. Traditional heat dissipation equipment often uses fans, which has low efficiency. To improve this, a new type of PCB heat dissipation device is proposed.
[0003] For example, a circuit board heat dissipation device disclosed in the authorization announcement number CN222839988U includes a circuit board assembly. The circuit board assembly includes a fixed housing. A base plate is fixedly connected to the bottom of the fixed housing, and a circuit board body is installed inside the fixed housing. A heat dissipation mechanism is installed at the bottom of the circuit board body.
[0004] Although it achieves the absorption and transfer of heat directly to the surface of the circuit board through the No. 2 heat conduction plate, and then the heat generated by the circuit board body is quickly dissipated through the connecting inner plate, connecting outer plate, No. 1 heat conduction plate and heat dissipation plate, and then the heat dissipation plate surface is ventilated through the fan body, so that the heat of the circuit board body and the inside of the fixed shell can be quickly dissipated.
[0005] However, it does not solve the problem that existing heat dissipation equipment is not conducive to convenient and quick plugging and unplugging of circuit boards during use, nor to multiple flexible adjustments of heat dissipation on the circuit boards, thus affecting the heat dissipation effect and ease of disassembly and assembly of the circuit boards. Utility Model Content
[0006] The purpose of this utility model is to provide a heat dissipation device for circuit boards, so as to solve the problems mentioned in the background art that the heat dissipation device is not convenient for quick and easy plugging and unplugging of circuit boards, is not conducive to multiple flexible adjustments of heat dissipation of circuit boards, and affects the heat dissipation effect and the convenience of disassembly and assembly of circuit boards.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a circuit board heat dissipation device, comprising a circuit board body and an integrated frame. An integrated frame is mounted on one side of the circuit board body. A bidirectional lead screw is movably mounted inside the integrated frame. A servo motor is mounted on the side wall of the integrated frame, and the output end of the servo motor is connected to the bidirectional lead screw. Two sets of threaded sleeves are fitted onto the surface of the bidirectional lead screw, and the threaded sleeves are threadedly connected to the bidirectional lead screw. Heat sinks are mounted at the bottom ends of the threaded sleeves. A slide rail is mounted on the side wall of the circuit board body on one side of the integrated frame. A slider is mounted at the bottom end of each heat sink, and the slider is slidably connected to the slide rail. A mounting housing is provided on the other side of the circuit board body. A serpentine copper tube is installed inside each heat sink, and the serpentine copper tube is connected to an external coolant source via a flexible hose. A cooling fan is mounted on the side wall of each heat sink.
[0008] Preferably, two sets of plug sockets are symmetrically installed on the side of the mounting box near the circuit board body, and two sets of connecting plates are symmetrically installed on the side of the circuit board body near the mounting box.
[0009] Preferably, each of the side walls of the connecting plate is equipped with a plug-in post, and the plug-in post can be inserted into the interior of the plug-in socket and slidably connected to the plug-in socket.
[0010] Preferably, each of the plug-in sockets is equipped with a limiting ring on its side wall, and each limiting ring is slidably installed with a limiting post inside it.
[0011] Preferably, each of the limiting posts is provided with a spring, and the two ends of the spring are respectively connected to the limiting post and the limiting ring.
[0012] Preferably, the surface of each insertion post is provided with a groove, and the limiting post can be inserted into the inside of the groove.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the heat dissipation device not only realizes convenient and quick plugging and unplugging of circuit boards, and facilitates multiple flexible adjustments to the heat dissipation of circuit boards, but also improves the heat dissipation effect and the convenience of disassembly and assembly of circuit boards.
[0014] (1) Connect the heat sink to the threaded sleeves respectively. Then, remove the circuit board body. The circuit board body drives the connecting plate and the plug-in pin to move, so that the plug-in pin is inserted into the plug socket. The plug-in pin drives the limiting pin to move from inside the limiting ring to outside the plug socket. The limiting pin compresses the spring. When the groove moves to the position of the limiting pin, under the elastic cooperation of the spring, the spring drives the limiting pin to reset and lock into the groove, so that the plug-in pin and the plug socket are connected. This allows the circuit board body to be installed on the mounting box. When it is necessary to quickly remove the circuit board body, simply pull the limiting pin outward to separate the plug-in pin from the plug socket, thus removing the circuit board body from the mounting box. When the circuit board generates high temperature, the heat is transferred to the heat sink. Turn on the cooling fan. A cooling fan blows air onto the heatsink to dissipate heat from the circuit board, while external coolant enters the serpentine copper tube through a flexible hose. The coolant then transfers heat from the heatsink to the outside, providing dual cooling for the circuit board and ensuring effective heat dissipation. When different areas on the circuit board need cooling, a servo motor is activated, driving a bidirectional lead screw. This lead screw moves two sets of threaded sleeves in opposite directions, which in turn move the heatsinks in opposite directions, adjusting their position on the sidewall of the circuit board. This allows for convenient and quick connection and disconnection of the circuit board, facilitating multiple flexible adjustments for heat dissipation and improving overall cooling efficiency. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a three-dimensional perspective structural diagram of the mounting box of this utility model;
[0017] Figure 3 This is a front cross-sectional view of the integrated frame of this utility model.
[0018] Figure 4 This is a three-dimensional structural diagram of the heat sink of this utility model;
[0019] Figure 5 This is a three-dimensional perspective structural diagram of the connector of this utility model.
[0020] In the diagram: 1. Mounting enclosure; 2. Circuit board body; 3. Integrated frame; 4. Heat sink; 5. Slide rail; 6. Socket; 7. Connecting plate; 8. Threaded sleeve; 9. Two-way lead screw; 10. Servo motor; 11. Slider; 12. Servo tube; 13. Cooling fan; 14. Limiting post; 15. Limiting ring; 16. Spring; 17. Socket; 18. Groove. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0022] Please see Figure 1-5 An embodiment of this utility model provides a circuit board heat dissipation device, including a circuit board body 2 and an integrated frame 3. The integrated frame 3 is installed on one side of the circuit board body 2. A bidirectional lead screw 9 is movably installed inside the integrated frame 3. A servo motor 10 is installed on the side wall of the integrated frame 3. The servo motor 10 plays a power driving role, and the output end of the servo motor 10 is connected to the bidirectional lead screw 9. Two sets of threaded sleeves 8 are fitted on the surface of the bidirectional lead screw 9, and the threaded sleeves 8 are threadedly connected to the bidirectional lead screw 9. Heat sinks 4 are installed at the bottom of each threaded sleeve 8. A slide rail 5 is installed on the side wall of the circuit board body 2 on one side of the integrated frame 3. A slider 11 is installed at the bottom of each heat sink 4, and the slider 11 is slidably connected to the slide rail 5. An installation box 1 is provided on the other side of the circuit board body 2. A serpentine copper tube 12 is installed inside each heat sink 4, and the serpentine copper tube 12 is connected to an external coolant source through a flexible hose. A cooling fan 13 is installed on the side wall of each heat sink 4.
[0023] Two sets of plug sockets 6 are symmetrically installed on the side of the mounting box 1 near the circuit board body 2, and two sets of connecting plates 7 are symmetrically installed on the side of the circuit board body 2 near the mounting box 1.
[0024] The side walls of the connecting plate 7 are all equipped with plug-in pins 17, and the plug-in pins 17 can be inserted into the interior of the plug-in base 6 and slidably connected to the plug-in base 6. The side walls of the plug-in base 6 are all equipped with limit rings 15, and the interior of the limit rings 15 is slidably equipped with limit pins 14.
[0025] The surface of each limiting post 14 is provided with a spring 16, and the two ends of the spring 16 are respectively connected to the limiting post 14 and the limiting ring 15. The surface of each insertion post 17 is provided with a groove 18, and the limiting post 14 can be inserted into the inside of the groove 18.
[0026] Connect the heat sink 4 to the threaded sleeve 8 respectively. Then remove the circuit board body 2. The circuit board body 2 drives the connecting plate 7 and the plug 17 to move, so that the plug 17 is inserted into the plug socket 6. Under the sliding engagement of the plug 17 and the limiting post 14, the plug 17 drives the limiting post 14 to move from inside the limiting ring 15 to outside the plug socket 6. The limiting post 14 compresses the spring 16. When the groove 18 moves to the position of the limiting post 14, under the elastic engagement of the spring 16... Spring 16 drives the limiting post 14 to reset and engage with the groove 18, thus connecting the plug post 17 to the plug socket 6, allowing the circuit board body 2 to be mounted on the mounting housing 1. To quickly remove the circuit board body 2, simply pull the limiting post 14 outwards to separate the plug post 17 from the plug socket 6, allowing the circuit board body 2 to be removed from the mounting housing 1. When the circuit board generates high temperatures, the heat is transferred to the heat sink 4. The cooling fan 13 blows air onto the heat sink 4 to dissipate heat from the circuit board. Simultaneously, external coolant enters the serpentine copper tube 12 through a flexible hose, transferring heat from the heat sink 4 to the outside, thus providing dual cooling for the circuit board and ensuring effective heat dissipation. When different locations on the circuit board need cooling, the servo motor 10 is activated, driving the bidirectional lead screw 9 to rotate. With the lead screw 9 threaded into the threaded sleeve 8, the lead screw 9 drives two sets of threaded sleeves 8 to move towards or opposite each other. With the sliding cooperation of the slider 11 and the slide rail 5, the threaded sleeves 8 drive the heat sink 4 to move towards or opposite each other, adjusting the position of the heat sink 4 on the side wall of the circuit board body 2. This allows for convenient and quick insertion and removal of the circuit board, facilitating multiple flexible adjustments for heat dissipation and improving the overall cooling effect.
[0027] Working principle: Connect the heat sink 4 to the threaded sleeve 8 respectively. Then, take out the circuit board body 2. The circuit board body 2 drives the connecting plate 7 and the plug 17 to move, so that the plug 17 is inserted into the plug socket 6. Under the sliding cooperation of the plug 17 and the limiting post 14, the plug 17 drives the limiting post 14 to move from inside the limiting ring 15 to outside the plug socket 6. The limiting post 14 compresses the spring 16. When the groove 18 moves to the position of the limiting post 14, under the elastic cooperation of the spring 16, the spring 16 drives the limiting post 14 to reset and lock the limiting post 14 into the groove 18, so that the plug 17 and the plug socket 6 are connected, thereby installing the circuit board body 2 on the mounting box 1. When it is necessary to quickly remove the circuit board body 2, simply pull the limiting post 14 outward to separate the plug 17 from the plug socket 6, thereby removing the circuit board body 2 from the mounting box 1. When the circuit board is warm, heat is transferred to the heat sink 4. The cooling fan 13 is turned on to blow air onto the heat sink 4, thereby cooling the circuit board. At the same time, external coolant enters the interior of the serpentine copper tube 12 through a flexible hose, and the coolant transfers the heat inside the heat sink 4 out, thus achieving dual cooling of the circuit board to ensure the cooling effect. When it is necessary to cool different parts of the circuit board, the servo motor 10 is turned on, which drives the bidirectional lead screw 9 to rotate. With the threaded connection between the bidirectional lead screw 9 and the threaded sleeve 8, the bidirectional lead screw 9 drives the two sets of threaded sleeves 8 to move towards or opposite each other. With the sliding cooperation between the slider 11 and the slide rail 5, the threaded sleeve 8 drives the heat sink 4 to move towards or opposite each other, thereby adjusting the position of the heat sink 4 on the side wall of the circuit board body 2, thereby cooling different parts of the circuit board body 2. The above is the complete usage of the circuit board cooling equipment.
Claims
1. A circuit board heat dissipation device, comprising a circuit board body (2) and an integrated frame (3), characterized in that: An integrated frame (3) is mounted on one side of the circuit board body (2). A bidirectional lead screw (9) is movably mounted inside the integrated frame (3). A servo motor (10) is mounted on the side wall of the integrated frame (3), and the output end of the servo motor (10) is connected to the bidirectional lead screw (9). Two sets of threaded sleeves (8) are fitted on the surface of the bidirectional lead screw (9), and the threaded sleeves (8) are threadedly connected to the bidirectional lead screw (9). A heat sink (4) is mounted on the bottom end of each threaded sleeve (8). A slide rail (5) is installed on the side wall of the circuit board body (2) on one side of the frame (3). A slider (11) is installed at the bottom of each heat sink (4), and the slider (11) is slidably connected to the slide rail (5). An installation box (1) is provided on the other side of the circuit board body (2). A serpentine copper tube (12) is installed inside each heat sink (4), and the serpentine copper tube (12) is connected to an external coolant source through a flexible hose. A cooling fan (13) is installed on the side wall of each heat sink (4).
2. The circuit board heat dissipation device according to claim 1, characterized in that: Two sets of plug sockets (6) are symmetrically installed on the side of the mounting box (1) near the circuit board body (2), and two sets of connecting plates (7) are symmetrically installed on the side of the circuit board body (2) near the mounting box (1).
3. The circuit board heat dissipation device according to claim 2, characterized in that: Each of the connecting plates (7) has a plug-in post (17) installed on its side wall, and the plug-in post (17) can be inserted into the interior of the plug-in seat (6) and slidably connected to the plug-in seat (6).
4. The circuit board heat dissipation device according to claim 2, characterized in that: Limiting rings (15) are installed on the side walls of each plug-in socket (6), and limiting posts (14) are slidably installed inside each limiting ring (15).
5. A circuit board heat dissipation device according to claim 4, characterized in that: The surface of each limiting post (14) is provided with a spring (16), and the two ends of the spring (16) are respectively connected to the limiting post (14) and the limiting ring (15).
6. A circuit board heat dissipation device according to claim 3, characterized in that: The surface of each plug post (17) is provided with a groove (18), and the limiting post (14) can be inserted into the inside of the groove (18).