A heat dissipation assembly of a programmable electronic load module

Abstract

The utility model discloses a kind of heat dissipation components of program-controlled electronic load module, it is related to the technical field of work.A kind of heat dissipation components of program-controlled electronic load module, including first PCB board, second PCB board, heat dissipation fan and four connecting columns, limit component is set on first PCB board, limit component includes fin and two fixed seats, the upper surface of two fixed seats is fixedly connected with two T-shaped blocks, two fixed seat grooves are set in fin lower end outer wall, by limit component in push block, push block slides in push block groove, compression reset spring, limit block is simultaneously driven from first limit block groove, release the limit of fin, at this time fin can be taken out along the direction of T-shaped block sliding, such disassembly fin is simple and fast, avoid staff to need to disassemble by special tool, effectively reduce the workload of staff while increasing the maintenance and overhaul efficiency of fin.

Description

Technical Field

[0001] This utility model relates to the field of working technology, and in particular to a heat dissipation component for a programmable electronic load module. Background Technology

[0002] In the field of modern electronic equipment, programmable electronic load modules are widely used in key areas such as power supply testing, battery performance evaluation, and power electronic equipment research and development due to their high precision and flexible programmability. They can simulate different load conditions and provide an accurate testing environment for the performance testing of various power supply products and batteries. They are important testing equipment to ensure the quality and performance stability of electronic products. However, with the rapid development of electronic technology, the power density of programmable electronic load modules is constantly increasing. During operation, a large amount of heat will be generated. If this heat cannot be dissipated in a timely and effective manner, the temperature of the electronic components inside the module will rise sharply, which will affect the performance and lifespan of the components. In severe cases, it may even cause equipment failure, resulting in serious consequences such as data loss and test interruption, posing a great safety hazard to the normal operation of electronic equipment and related testing work.

[0003] To address the heat dissipation problem of programmable electronic load modules, various heat dissipation components have emerged on the market. Among them, the heat dissipation structure that combines a PCB board and a heat sink is quite common. This structure connects the heat sink to the PCB board and uses the large surface area of ​​the heat sink to dissipate the heat generated by the electronic components on the PCB board to the surrounding environment, thereby reducing the module temperature. Among the many heat dissipation component designs, the structure of a heat sink sandwiched between two PCB boards has received widespread attention because it can make full use of space and enhance the heat dissipation effect.

[0004] Because existing programmable electronic load modules operate continuously for extended periods, the heat sinks easily accumulate dust and impurities on their surfaces during continuous heat dissipation. These deposits build up in the gaps and on the surface of the heat sinks, severely hindering heat conduction and dissipation, leading to a significant decrease in heat dissipation efficiency. Furthermore, electronic components may malfunction after prolonged operation, requiring PCB board repair or replacement, which necessitates the removal of the heat sinks. However, existing structures with heat sinks sandwiched between two PCB boards mostly employ welding for fixation. While welding ensures a tight bond between the heat sink and the PCB board and guarantees good thermal conductivity, disassembly requires specialized welding equipment to heat and melt the solder joints. This process is not only complex but also highly susceptible to thermal damage to other electronic components on the PCB board, increasing repair difficulty and costs. Utility Model Content

[0005] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a heat dissipation component for a programmable electronic load module. This component can solve the problem that professional welding equipment is required to heat and melt the solder joints during disassembly. The operation process is not only complicated, but also easily causes thermal damage to other electronic components on the PCB board, increasing the difficulty and cost of maintenance.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heat dissipation component for a programmable electronic load module, comprising a first PCB board, a second PCB board, a cooling fan, and four connecting posts, wherein a limit component is provided on the first PCB board;

[0007] The limiting component includes a heat sink and two fixed seats. Two T-shaped blocks are fixedly connected to the upper surface of each of the two fixed seats. Two fixed seat grooves are opened on the lower outer wall of the heat sink. Two T-shaped block grooves are opened on the upper inner wall of each of the two fixed seat grooves. First limiting block grooves are opened on both sides of the inner wall of each of the two fixed seat grooves. Second limiting block grooves are opened on both sides of the outer wall of one end of each of the two fixed seats. Limiting blocks are slidably connected inside the four second limiting block grooves.

[0008] Among them, the outer wall of the two fixed seats near the limit block is provided with a push block groove, and two push blocks are slidably connected inside the two push block grooves. A reset spring is provided inside the two push block grooves, and a limit block is slidably engaged inside the two push block grooves.

[0009] Preferably, both fixing seats are bolted to the surface of the first PCB board, and the outer walls of the two fixing seats are slidably connected to the interior of the corresponding fixing seat groove.

[0010] The outer walls of the four T-blocks are slidably connected to the interior of the corresponding T-block grooves.

[0011] Preferably, the ends of the four limiting blocks near the first limiting block groove all slide into the interior of the fixed seat groove and are respectively slidably connected to the interior of the corresponding first limiting block groove;

[0012] The interiors of the four second limiting block slots are respectively connected to the interiors of the corresponding pushing block slots. The ends of the four pushing blocks that are close to the limiting blocks all slide into the interiors of the second limiting block slots and are respectively fixedly connected to the outer walls of the corresponding limiting blocks.

[0013] Preferably, the two ends of the two return springs are fixedly connected to one side of the outer wall of the corresponding push block;

[0014] The two ends of the two limit blocks are in contact with the outer wall of one side of the corresponding push block.

[0015] Preferably, the lower ends of the four connecting posts are connected to four corner bolts on the first PCB board;

[0016] The second PCB board is mounted on the upper part of the first PCB board by bolts at the four corners and corresponding connecting posts, and the heat sink is located between the first PCB board and the connecting posts.

[0017] Preferably, the outer walls of the two protrusions at the upper end of the cooling fan are threaded with fixing bolts;

[0018] The cooling fan is installed on one end of the second PCB board by fixing bolts on two protrusions and correspondingly engaging with the slots opened in two grooves at one end of the second PCB board.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. The heat dissipation component of this programmable electronic load module is achieved by pushing a push block in the limit component. The push block slides in the push block slot, compressing the reset spring and simultaneously causing the limit block to slide out from the first limit block slot, releasing the limit on the heat sink. At this time, the heat sink can be slid out along the T-shaped block direction. This makes the disassembly of the heat sink simple and quick, avoiding the need for workers to use special tools to disassemble it, effectively reducing the workload of workers while increasing the maintenance and repair efficiency of the heat sink. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the external structure of the fixing base of this utility model;

[0024] Figure 3 This is a schematic diagram of the external structure of the heat sink of this utility model;

[0025] Figure 4 This utility model Figure 2 A structural schematic diagram of the enlarged view at point A in the middle.

[0026] Reference numerals in the attached diagram: 1. First PCB board; 2. Connecting post; 3. Second PCB board; 4. Cooling fan; 5. Fixing bolt; 6. Heat sink; 7. T-shaped block slot; 8. Fixing seat slot; 9. First limiting block slot; 10. T-shaped block; 11. Limiting block; 12. Second limiting block slot; 13. Reset spring; 14. Pushing block slot; 15. Fixing seat; 16. Limiting block; 17. Pushing block. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] Please see Figure 1-4 This utility model provides a technical solution: a heat dissipation component for a programmable electronic load module, including a first PCB board 1, a second PCB board 3, a cooling fan 4 and four connecting posts 2;

[0032] A limit component is provided on the first PCB board 1;

[0033] The limiting assembly includes a heat sink 6 and two fixing seats 15. Two T-shaped blocks 10 are fixedly connected to the upper surface of each fixing seat 15. Two fixing seat grooves 8 are formed on the lower outer wall of the heat sink 6. Both fixing seats 15 are bolted to the surface of the first PCB board 1. Two T-shaped block grooves 7 are formed on the upper inner wall of each fixing seat groove 8. The outer walls of the two fixing seats 15 are slidably connected to the interior of their respective fixing seat grooves 8. The outer walls of the four T-shaped blocks 10 are slidably connected to the interior of their respective T-shaped block grooves 7. First limiting block grooves 9 are formed on both sides of the inner walls of the two fixing seat grooves 8. Second limiting block grooves 12 are formed on both sides of one end of each of the two fixing seats 15. Limiting blocks 11 are slidably connected inside each of the four second limiting block grooves 12. The ends of the four limiting blocks 11 closest to the first limiting block grooves 9 slidably extend to the fixing... The interior of the seat groove 8 is slidably connected to the interior of the corresponding first limiting block groove 9. The outer wall of the two fixed seats 15 near the limiting block 11 is provided with a push block groove 14. The interior of the two push block grooves 14 is slidably connected with two push blocks 17. The interior of the four second limiting block grooves 12 is respectively connected to the interior of the corresponding push block groove 14. The end of the four push blocks 17 near the limiting block 11 is slidably extended into the interior of the second limiting block groove 12 and is fixedly connected to the outer wall of the corresponding limiting block 11. The interior of the two push block grooves 14 is provided with a return spring 13. The two ends of the two return springs 13 are fixedly connected to one side of the outer wall of the corresponding push block 17. The interior of the two push block grooves 14 is slidably engaged with a limiting block 16. The two ends of the two limiting blocks 16 are respectively in contact with one side of the outer wall of the corresponding push block 17.

[0034] The lower ends of the four connecting posts 2 are connected to the four corner bolts on the first PCB board 1. The second PCB board 3 is installed on the upper end of the first PCB board 1 by the four corner bolts and corresponding connecting posts 2. The heat sink 6 is located between the first PCB board 1 and the connecting posts 2. The outer walls of the two protrusions on the upper end of the cooling fan 4 are threaded with fixing bolts 5. The cooling fan 4 is installed on one end of the second PCB board 3 by the fixing bolts 5 on the two protrusions and correspondingly engaging with the grooves opened in the two grooves at one end of the second PCB board 3.

[0035] Furthermore, when using this device, firstly, during the installation of the heat dissipation assembly, the two fixing seats 15 are fixed to the surface of the first PCB board 1 with bolts. At this time, the T-shaped block 10 on the fixing seat 15 is aligned with the T-shaped block groove 7 on the heat sink 6. The heat sink 6 is slid along the direction of the T-shaped block 10, so that the fixing seat 15 slides into the fixing seat groove 8. At the same time, the limiting block 11, under the action of the return spring 13, slides into the first limiting block groove 9 to fix the position of the heat sink 6 and restrict its horizontal movement. Then, the four connecting posts 2 are installed at the four corners of the first PCB board 1 with bolts. Finally, the second PCB board 3 is installed on the upper end of the first PCB board 1 with bolts and the connecting posts 2. At this point, the heat sink 6 is located between the first PCB board 1 and the connecting post 2. Finally, the cooling fan 4 is installed by using the fixing bolts 5 on the two protrusions at its upper end to mate with the slots opened in the two grooves at one end of the second PCB board 3. Then, when the programmable electronic load module is working, the cooling fan 4 is powered on and rotates, generating airflow to accelerate the air flow and remove the heat generated by the electronic components on the first PCB board 1 and the second PCB board 3. At the same time, the heat sink 6 increases the heat dissipation area, assisting the cooling fan 4 in improving the heat dissipation effect, ensuring that the programmable electronic load module operates stably within a suitable temperature range. Meanwhile, the limiting component always keeps the heat sink 6 in a limited and fixed position, preventing it from being interrupted by the operation of the cooling fan 4. The heat sink 6 may loosen due to vibrations and other factors, ensuring the stability and reliability of the heat dissipation components. When it needs to be disassembled or adjusted, pull the handle on the limit block 16 to remove it from the push block slot 14. Then push the push block 17, which slides within the push block slot 14, compressing the return spring 13 and simultaneously causing the limit block 11 to slide out of the first limit block slot 9, releasing the restriction on the heat sink 6. At this point, the heat sink 6 can be slid out along the T-shaped block 10. Currently, conventional electronic load module cooling methods either directly use a heat sink + fan (this method cannot form a closed airflow, and the fan's cooling efficiency is low)... Either a double heatsink stacked on opposite sides plus a fan (this method can form an airflow, but it is costly), or a heatsink with a thin-film shroud plus a fan (although it can also form an airflow, it adds an extra step and materials). Another drawback is that the heat-generating components and high-current traces are on the same PCB board as the control circuit, making it impossible to avoid the impact of temperature on the control circuit when the load is running. This design uses two PCB boards with a heatsink sandwiched in between, forming a heat dissipation airflow without adding any materials. At the same time, it separates the heat-generating components and high-current circuits from the control circuit on two separate PCB boards, thus avoiding temperature interference with the control circuit and affecting its operational stability.

[0036] By pushing the push block 17 in the limiting assembly, the push block 17 slides in the push block groove 14, compressing the reset spring 13, and at the same time driving the limiting block 11 to slide out from the first limiting block groove 9, releasing the limitation on the heat sink 6. At this time, the heat sink 6 can be slid out along the direction of the T-shaped block 10. This makes disassembling the heat sink 6 simple and quick, avoiding the need for workers to use special tools to disassemble it, effectively reducing the workload of workers while increasing the maintenance and repair efficiency of the heat sink 6.

[0037] Structural Description: First PCB Board 1: The first PCB board 1 is the basic mounting carrier of the entire heat dissipation assembly, providing a mounting surface for other components. It has connection structures at its four corners, which are connected to the lower ends of four connecting posts 2 by bolts to achieve combined installation with components such as the second PCB board 3. At the same time, the surface of the first PCB board 1 is used to install the fixing seat 15, which supports the installation of the limiting component and plays a key supporting and connecting role in the heat dissipation assembly.

[0038] Connecting post 2: The lower ends of the four connecting posts 2 are connected to the four corners of the first PCB board 1 by bolts. They serve as a bridge connecting the first PCB board 1 and the second PCB board 3. The second PCB board 3 is installed on the upper part of the first PCB board 1 by bolts at the four corners, so that the two PCB boards maintain a relatively fixed positional relationship. Space is left between the first PCB board 1 and the second PCB board 3 to accommodate components such as heat sink 6, ensuring the overall structural stability of the heat dissipation assembly.

[0039] Second PCB board 3: The second PCB board 3 is installed on the upper end of the first PCB board 1 by bolts at the four corners and corresponding connecting posts 2, providing an installation position for the cooling fan 4. One end of the second PCB board 3 has two grooves with slots inside. The grooves are engaged with the two protrusions on the cooling fan 4 by fixing bolts 5 to realize the installation and fixation of the cooling fan 4. The second PCB board 3 is the carrier platform for the operation of the cooling fan 4.

[0040] Cooling fan 4: Cooling fan 4 is the core power component for achieving heat dissipation. It has two protrusions on its upper end, and the outer wall of the protrusions is machined with threads. It is installed on one end of the second PCB board 3 by fixing bolt 5 corresponding to the slots opened in the two grooves at one end of the second PCB board 3. When working, cooling fan 4 rotates to generate airflow, accelerates air flow, and carries away heat, thus forcibly cooling the programmable electronic load module.

[0041] Fixing base 15 and T-block 10: Two fixing bases 15 are installed on the surface of the first PCB board 1 by bolts. Two T-blocks 10 are fixedly connected to the upper surface of each fixing base 15. The T-blocks 10 cooperate with the T-block slots 7 on the heat sink 6, so that the fixing base 15 and the heat sink 6 are slidably connected. This connection method can restrict the movement of the heat sink 6 in the horizontal direction, while allowing it to slide in a certain direction, providing a basis for the limiting operation of the subsequent limiting block 11.

[0042] Heat sink 6 with mounting slot 8, T-shaped block slot 7, and first limiting block slot 9: Two mounting slots 8 are provided on the lower outer wall of the heat sink 6. The upper inner wall of the mounting slot 8 is provided with a T-shaped block slot 7, and the inner walls on both sides are provided with first limiting block slots 9. The mounting slot 8 is used to accommodate the mounting seat 15. The T-shaped block slot 7 cooperates with the T-shaped block 10, and the first limiting block slot 9 cooperates with the limiting block 11 to realize the positioning and limiting of the heat sink 6 in the vertical and horizontal directions. At the same time, the heat sink 6 increases the heat dissipation area and assists the cooling fan 4 to improve the heat dissipation effect.

[0043] Limiting block 11 and second limiting block groove 12: The four limiting blocks 11 slide in the four second limiting block grooves 12 respectively. The end of the limiting block 11 near the first limiting block groove 9 can slide into the fixed seat groove 8 and slide to connect with the corresponding first limiting block groove 9. By sliding in the second limiting block groove 12 and the first limiting block groove 9, the limiting block 11 restricts the displacement of the heat sink 6 in the horizontal direction, prevents it from loosening, and ensures that the heat sink 6 can stably perform its heat dissipation function.

[0044] Push block 17 and push block groove 14, reset spring 13: Two push blocks 17 are slidably connected in each of the two push block grooves 14. One end of the push block 17 is fixedly connected to the limit block 11, and the other end slides in the push block groove 14. A reset spring 13 is provided in the push block groove 14. The two ends of the reset spring 13 are connected to the push block 17. When the push block 17 is moved by force, the reset spring 13 is compressed or stretched to provide a reset force, so that the push block 17 and the limit block 11 can automatically reset when no external force is applied, and maintain the limit state.

[0045] Limiting block 16: Limiting block 16 is slidably engaged in the two pushing block slots 14. The two ends of the limiting block 16 are in contact with the pushing block 17. When the pushing block 17 moves to the appropriate position, the sliding limiting block 16 locks the pushing block 17, fixing the position of the pushing block 17, and thus fixing the position of the limiting block 11, preventing the limiting block 11 from shifting due to vibration or other factors during operation, and ensuring the reliability of the limiting component.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A heat dissipation assembly for a programmable electronic load module, comprising a first PCB board (1), a second PCB board (3), a cooling fan (4), and four connecting posts (2), characterized in that: A limit component is provided on the first PCB board (1); The limiting component includes a heat sink (6) and two fixing seats (15). Two T-shaped blocks (10) are fixedly connected to the upper surface of each of the two fixing seats (15). Two fixing seat grooves (8) are opened on the lower outer wall of the heat sink (6). Two T-shaped block grooves (7) are opened on the upper inner wall of each of the two fixing seat grooves (8). First limiting block grooves (9) are opened on both sides of the inner wall of each of the two fixing seat grooves (8). Second limiting block grooves (12) are opened on both sides of the outer wall of each of the two fixing seats (15). Limiting blocks (11) are slidably connected inside the four second limiting block grooves (12). Among them, the outer wall of the two fixed seats (15) near the limit block (11) is provided with a push block groove (14), and two push blocks (17) are slidably connected inside the two push block grooves (14). A reset spring (13) is provided inside the two push block grooves (14), and a limit block (16) is slidably engaged inside the two push block grooves (14).

2. The heat dissipation assembly for a programmable electronic load module according to claim 1, characterized in that: Both of the fixing seats (15) are bolted to the surface of the first PCB board (1), and the outer walls of the two fixing seats (15) are slidably connected to the interior of the corresponding fixing seat groove (8); The outer walls of the four T-blocks (10) are slidably connected to the interior of the corresponding T-block grooves (7).

3. The heat dissipation assembly for a programmable electronic load module according to claim 1, characterized in that: The four limiting blocks (11) extend slidably into the interior of the fixed seat groove (8) at one end near the first limiting block groove (9) and are slidably connected to the interior of the corresponding first limiting block groove (9); The interiors of the four second limiting block grooves (12) are respectively connected to the interiors of the corresponding pushing block grooves (14), and the ends of the four pushing blocks (17) near the limiting block (11) slide into the interiors of the second limiting block grooves (12) and are respectively fixedly connected to the outer walls of the corresponding limiting blocks (11).

4. The heat dissipation assembly for a programmable electronic load module according to claim 1, characterized in that: The two ends of the two reset springs (13) are respectively fixedly connected to one side of the outer wall of the corresponding push block (17); The two ends of the two limiting blocks (16) respectively contact one side of the outer wall of the corresponding pushing block (17).

5. The heat dissipation assembly for a programmable electronic load module according to claim 1, characterized in that: The lower ends of the four connecting posts (2) are connected to the four corner bolts on the first PCB board (1); The second PCB board (3) is installed on the upper end of the first PCB board (1) by bolts at the four corners and corresponding connecting posts (2), and the heat sink (6) is located between the first PCB board (1) and the connecting posts (2).

6. The heat dissipation assembly for a programmable electronic load module according to claim 1, characterized in that: The two protrusions at the upper end of the cooling fan (4) are threaded with fixing bolts (5); The cooling fan (4) is installed on one end of the second PCB board (3) by fixing bolts (5) on two protrusions and correspondingly engaging with the slots opened in the two grooves at one end of the second PCB board (3).

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