An easily assembled circuit board and method of operation

Abstract

The application discloses a circuit board convenient to assemble and an operation method, which comprises a base and a main board. The base is connected with two support seats for supporting the main board. The top of the support seat is connected with a pressing mechanism for pressing the main board. The pressing mechanism comprises a guide column, a driving seat, a pressing cylinder, a pressing column, a spring three and a pressing block. The support seat is connected with a pushing mechanism for driving the driving seat to lift and fall. The pushing mechanism comprises a connecting column, a vertical plate, a push-pull plate and a spring two. The base is connected with a heat dissipation fin for dissipating heat of the main board. The two ends of the heat dissipation fin are connected with the two support seats. The base is connected with a driving mechanism for driving the two support seats to move close to or away from each other. The application can realize overall locking and positioning of the main board, improve the stability of the main board, replace the traditional locking by bolts, and timely discharge the heat generated by the main board during work by the heat dissipation fin, thereby prolonging the service life.

Description

Technical Field

[0001] This invention relates to the field of circuit board technology, specifically to a circuit board that is easy to assemble and its operation method. Background Technology

[0002] Circuit boards are named as follows: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board (copper etching technology), etc. Circuit boards miniaturize and visualize circuits, playing an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. Since circuit board use often requires assembly operations, circuit boards that are easy to assemble are needed to meet usage requirements.

[0003] The existing circuit board requires the use of screwdrivers and other tools to turn multiple sets of screws to fix it during installation, which is a relatively complicated operation. When the circuit board needs maintenance, it is inconvenient to disassemble it, thus reducing convenience. Furthermore, this assembly method may lead to stripping of screws after repeated use, thereby affecting the stability of the circuit board assembly. Summary of the Invention

[0004] The purpose of this invention is to provide a circuit board and operating method that are easy to assemble. It has the advantages of achieving full locking and positioning of the motherboard, improving the stability of the motherboard, replacing the traditional method of locking with bolts, and the heat sink can dissipate the heat generated by the motherboard during operation in a timely manner, thus extending its service life. It solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a circuit board that is easy to assemble, comprising a base and a main board. The base is connected to two support seats for supporting the main board. A limiting groove is provided on the inner side of each support seat, and the limiting groove matches a connecting plate connected to both ends of the main board. A pressing mechanism for pressing the main board is connected to the top of each support seat. The pressing mechanism includes a guide post, a drive seat, a pressing cylinder, a pressing post, a spring, and a pressure block. The guide post guides the drive seat, the drive seat drives the pressing cylinder to move up and down, both ends of the pressing post are connected to the pressing cylinder and the pressure block, and both ends of the spring are connected to the pressing cylinder and the pressing post. The support base is connected to a pushing mechanism for driving the drive base to move up and down. The pushing mechanism includes a connecting column, a vertical plate, a push-pull plate, and a second spring. The connecting column is slidably connected to the support base, with one end of the connecting column located in a limiting groove and the other end connected to the vertical plate. The second spring is used to drive the vertical plate to move closer to the support base. The vertical plate is used to drive the push-pull plate to move along the length of the push-pull plate. One end of the push-pull plate is connected to the drive base. The base is connected to a heat sink for motherboard heat dissipation. Both ends of the heat sink are connected to two support bases. The base is connected to a driving mechanism for driving the two support bases to move closer or further apart.

[0006] When the motherboard is in the positioning state, the connecting plate is connected to the limiting groove, and the connecting plate is pressed against the connecting post, the pressure block is pressed against the motherboard, and the heat sink is attached to the bottom of the motherboard.

[0007] Preferably, the pressing mechanism further includes a spring seat, an L-shaped seat, an oblique hole, a rectangular groove, a sliding column, and a first spring. The two ends of the guide column are connected to the spring seat and the L-shaped seat, and the guide column passes through the top of the L-shaped seat. The oblique hole and the rectangular groove are both provided on the drive seat, and the oblique hole is connected to the rectangular groove. The sliding column is slidably connected to the oblique hole, and the sliding column is used to drive the drive seat to rise and fall. The first spring is used to drive the spring seat to move away from the top of the L-shaped seat.

[0008] Preferably, the spring is fitted onto the guide post, and both ends of the spring are connected to the spring seat and the L-shaped seat.

[0009] Preferably, the push-pull plate extends through one side of the L-shaped seat, and both ends of the push-pull plate are connected to the sliding column and the vertical plate.

[0010] Preferably, the support base is provided with a support groove, which is connected to the limiting groove.

[0011] Preferably, the second spring is sleeved on the connecting column, and both ends of the second spring are connected to the vertical plate and the support base.

[0012] Preferably, the heat sink has lifting plates hinged to both ends, and the ends of the lifting plates are hinged to corresponding support seats.

[0013] Preferably, the driving mechanism includes a handle, a screw, and two support plates. The handle is used to drive the screw to rotate. The screw is threadedly connected to the two support seats. The screw passes through the two support plates and is rotatably connected to the support plates.

[0014] Preferably, the support plate is fixed to the top of the base, and the support plate is used to limit the heat sink.

[0015] A circuit board operation method includes the following steps:

[0016] Step 1: Support both ends of the motherboard in the support slots, and align the connecting plate with the corresponding limiting slot. Rotate the handle to drive the screw to rotate, so that the two support seats move closer to each other. That is, the end of the connecting plate is gradually inserted into the limiting slot. The connecting plate applies a pushing force to the connecting column, so that the vertical plate moves away from the support seat. Spring 2 is gradually stretched. The vertical plate applies a pulling force to the push-pull plate, so that the push-pull plate drives the sliding column to slide in the inclined hole, driving the drive seat to move down. That is, the guide column, pressing cylinder, and pressure block move down synchronously. Spring 1 is gradually compressed. At the same time, the lifting plate lifts up the heat sink.

[0017] Step 2: When the two support seats move a suitable distance, the connecting plate is fully inserted into the limiting groove, the end of the connecting plate is pressed against the connecting column, the sliding column moves upward relative to the drive seat, and the pressure block is pressed against the top of the motherboard. At this time, the spring is in a compressed state, and the heat sink is supported on the bottom of the motherboard, thus achieving full locking and positioning of the motherboard.

[0018] Step 3: Rotate the handle to drive the screw to rotate, causing the two support seats to move away from each other and return to their original positions. The connecting plate separates from the limiting groove, and the stretched spring drives the vertical plate to return to its original position. The vertical plate applies a pushing force to the push-pull plate, and the push-pull plate applies a pushing force to the sliding column. That is, the sliding column drives the drive seat to move upward and return to its original position, that is, the pressing cylinder and the pressing block return to their original positions simultaneously. The pressing block separates from the main board. At the same time, the support seat applies a pulling force to the lifting plate, causing the heat sink to move downward and connect with the support plate. That is, the main board is in a relaxed state, which is convenient for disassembly.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is provided with a pressing mechanism, a pushing mechanism, and a heat sink. The pressing mechanism includes a guide post, a drive seat, a pressing cylinder, a pressing post, a third spring, a pressure block, a spring seat, an L-shaped seat, an oblique hole, a rectangular groove, a sliding post, and a first spring. The pushing mechanism includes a connecting post, a vertical plate, a push-pull plate, and a second spring. The two ends of the main board are supported in the support groove. Rotating the handle drives the screw to rotate, causing the two support seats to move closer to each other, that is, the connecting plate moves towards the corresponding limiting groove. The end of the connecting plate is inserted into the limiting groove and applies a pushing force to the connecting post, causing the vertical plate to move away from the support seat. The second spring is gradually pulled. The vertical plate applies a pulling force to the push-pull plate, which drives the sliding column to slide in the inclined hole, causing the drive seat to move downward. This causes the guide column, pressing cylinder, and pressure block to move downward simultaneously, and the spring is gradually compressed. At the same time, the lifting plate lifts the heat sink. When the connecting plate is fully inserted into the limiting groove, the end of the connecting plate presses against the connecting column, the sliding column moves upward relative to the drive seat, and the pressure block presses against the top of the motherboard. At this time, the spring is in a compressed state, while the heat sink is supported at the bottom of the motherboard, achieving full locking and positioning of the motherboard, improving the stability of the motherboard, replacing the traditional bolt locking method. At the same time, the heat sink can dissipate the heat generated by the motherboard during operation in a timely manner, extending its service life. Attached Figure Description

[0020] Figure 1 This is a frontal perspective view of the present invention;

[0021] Figure 2 This is a left-side perspective view of the present invention;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the pressing mechanism of the present invention;

[0024] Figure 5 This is a schematic diagram of the top structure of the base of the present invention;

[0025] Figure 6 This is a perspective view of the present invention. (Motherboard not installed)

[0026] In the diagram: 1. Base; 2. Main board; 3. Connecting plate; 4. Support seat; 5. Slide groove; 6. Handle; 7. Limiting groove; 8. Vertical plate; 9. Push-pull plate; 10. L-shaped seat; 11. Guide post; 12. Drive seat; 13. Lifting plate; 14. Heat sink; 15. Screw; 16. Spring 1; 17. Angled hole; 18. Slide column; 19. Pressing cylinder; 20. Pressing block; 21. Connecting post; 22. Spring 2; 23. Rectangular groove; 24. Spring 3; 25. Pressing post; 26. Support plate; 27. Support groove; 28. Limiting surface; 29. ​​Spring seat. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1 to 6 This invention provides a circuit board that is easy to assemble, including a base 1 and a main board 2. The base 1 is connected to two support seats 4 for supporting the main board 2. The top of the base 1 is provided with four sliding grooves 5, with one support seat 4 corresponding to two sliding grooves 5. The support seat 4 is slidably connected to the sliding grooves 5, which provides good guidance for the support seat 4 and ensures stable reciprocating movement. The inner side of the support seat 4 is provided with a limiting groove 7, which matches the connecting plates 3 connected to both ends of the main board 2. When the connecting plate 3 is connected to the limiting groove 7, the connecting plate 3 can be limited, thereby realizing the positioning of the main board 2. The top of the support base 4 is connected to a pressing mechanism for pressing the main board 2. There are four pressing mechanisms, which correspond to the four corners of the main board 2 respectively, so as to fully press the main board 2. The pressing mechanism includes a guide post 11, a drive base 12, a pressing cylinder 19, a pressing post 25, a spring 24, and a pressure block 20. The guide post 11 is used to guide the drive base 12 and improve the stability of the drive base 12 lifting and lowering. The drive base 12 is used to drive the pressing cylinder 19 to lift and lower. The two ends of the pressing post 25 are connected to the pressing cylinder 19 and the pressure block 20. The two ends of the spring 24 are connected to the pressing cylinder 19 and the pressing post 25. The support base 4 is connected to a pushing mechanism for driving the drive base 12 to rise and fall. There are four pushing mechanisms, each matching a pressing mechanism. Each pushing mechanism includes a connecting column 21, a vertical plate 8, a push-pull plate 9, and a second spring 22. The connecting column 21 is slidably connected to the support base 4, with one end located in the limiting groove 7 and the other end connected to the vertical plate 8. The second spring 22 drives the vertical plate 8 to move closer to the support base 4. The vertical plate 8 drives the push-pull plate 9 to move along its length. One end of the push-pull plate 9 is connected to the drive base 12. The base 1 is connected to a heat sink 14 for cooling the motherboard 2. Both ends of the heat sink 14 are connected to two support bases 4. The base 1 is also connected to a driving mechanism for driving the two support bases 4 closer together or further apart.

[0029] Support both ends of the main board 2 in the support groove 27, rotate the handle 6 to drive the screw 15 to rotate, so that the two support seats 4 move closer to each other, that is, the connecting plate 3 moves in the direction of the corresponding limiting groove 7, the end of the connecting plate 3 is inserted into the limiting groove 7, and a pushing force is applied to the connecting column 21, so that the vertical plate 8 moves away from the support seat 4, and the second spring 22 is gradually stretched. The vertical plate 8 applies a pulling force to the push-pull plate 9, that is, the push-pull plate 9 drives the sliding column 18 to slide in the inclined hole 17, driving the drive seat 12 to move down, that is, the guide column 11, the pressing cylinder 19, and the pressure block 20 move down synchronously, and the first spring 22 moves away from the support seat 4. 16 is gradually compressed, and at the same time, the lifting plate 13 lifts the heat sink 14; when the connecting plate 3 is fully inserted into the limiting groove 7, the end of the connecting plate 3 is pressed against the connecting post 21, the sliding post 18 moves upward relative to the drive seat 12, and the pressure block 20 presses against the top of the motherboard 2. At this time, the spring 3 24 is in a compressed state, and the heat sink 14 is supported on the bottom of the motherboard 2, realizing the full locking and positioning of the motherboard 2, improving the stability of the motherboard 2, replacing the traditional bolt locking, and at the same time, the heat sink 14 can dissipate the heat generated by the motherboard 2 during operation in time, extending its service life.

[0030] The pressing mechanism also includes a spring seat 29, an L-shaped seat 10, an oblique hole 17, a rectangular groove 23, a sliding column 18, and a spring 16. The two ends of the guide column 11 are connected to the spring seat 29 and the L-shaped seat 10, and the guide column 11 passes through the top of the L-shaped seat 10. The oblique hole 17 and the rectangular groove 23 are both located on the drive seat 12, and the oblique hole 17 is connected to the rectangular groove 23. The sliding column 18 is slidably connected to the oblique hole 17 and is used to drive the drive seat 12 to rise and fall. The spring 16 is used to drive the spring seat 29 to move away from the top of the L-shaped seat 10. The high point of the oblique hole 17 is f, and the low point is e. When the sliding column 18 moves towards f, it can drive the drive seat 12 to move downwards; when the sliding column 18 moves towards e, it can drive the drive seat 12 to move upwards.

[0031] Spring 16 is fitted onto guide post 11, and both ends of spring 16 are connected to spring seat 29 and L-shaped seat 10.

[0032] The push-pull plate 9 extends through one side of the L-shaped seat 10, and both ends of the push-pull plate 9 are connected to the sliding column 18 and the vertical plate 8. At the same time, the push-pull plate 9 is slidably connected to the rectangular groove 23. When the push-pull plate 9 applies a pulling force to the sliding column 18, the end of the push-pull plate 9 slides on the rectangular groove 23 and moves upward relative to the drive seat 12.

[0033] The support base 4 is provided with a support groove 27, which is connected to the limiting groove 7.

[0034] Spring 22 is fitted onto connecting post 21, and both ends of spring 22 are connected to vertical plate 8 and support base 4.

[0035] The heat sink 14 is hinged to both ends with lifting plates 13. The ends of the lifting plates 13 are hinged to the corresponding support seats 4. There are four lifting plates 13 in total. When two support seats 4 approach each other, the support seats 4 apply a pushing force to the lifting plates 13, which can increase the angle between the lifting plates 13 and the horizontal, thereby lifting the heat sink 14.

[0036] The drive mechanism includes a handle 6, a screw 15, and two support plates 26. The handle 6 drives the screw 15 to rotate. The screw 15 is threadedly connected to the two support seats 4 and passes through the two support plates 26. The screw 15 and the support plates 26 are rotatably connected to improve the stability of the screw 15's rotation. The internal threads of the two support seats 4 are in opposite directions. When the handle 6 is rotated a suitable number of turns, the top of the heat sink 14 is connected to the bottom of the motherboard 2, meaning the handle 6 cannot rotate. When the handle 6 is rotated a suitable number of turns, the bottom of the heat sink 14 is connected to the top of the support plate 26, meaning the handle 6 cannot rotate. During the positioning or loosening of the motherboard 2, the handle 6 can be rotated relatively freely, making the operation more flexible.

[0037] The support plate 26 is fixed to the top of the base 1, and the support plate 26 is used to limit the heat sink 14, which can prevent the heat sink 14 from moving further down.

[0038] The inner side of the limiting groove 7 is provided with a limiting surface 28. When the end of the connecting plate 3 is connected to the limiting surface 28, it means that the connecting plate 3 is fully inserted into the limiting groove 7. At this time, the end of the connecting column 21 is aligned with the limiting surface 28.

[0039] A circuit board operation method includes the following steps:

[0040] Step 1: Support both ends of the motherboard 2 on the support groove 27, and align the connecting plate 3 with the corresponding limiting groove 7. Rotate the handle 6 to drive the screw 15 to rotate, so that the two support seats 4 move closer to each other, that is, the end of the connecting plate 3 is gradually inserted into the limiting groove 7. The connecting plate 3 applies a pushing force to the connecting column 21, so that the vertical plate 8 moves away from the support seat 4. The second spring 22 is gradually stretched. The vertical plate 8 applies a pulling force to the push-pull plate 9, that is, the push-pull plate 9 drives the sliding column 18 to slide in the inclined hole 17, driving the drive seat 12 to move down. That is, the guide column 11, the pressing cylinder 19, and the pressure block 20 move down synchronously, and the first spring 16 is gradually compressed. At the same time, the lifting plate 13 lifts the heat sink 14.

[0041] Step 2: When the two support seats 4 move a suitable distance, the connecting plate 3 is fully inserted into the limiting groove 7, the end of the connecting plate 3 is pressed against the connecting column 21, the sliding column 18 moves upward relative to the drive seat 12, the pressure block 20 is pressed against the top of the motherboard 2, at this time the spring 3 24 is in a compressed state, and the heat sink 14 is supported on the bottom of the motherboard 2, so as to achieve full locking and positioning of the motherboard 2.

[0042] Step 3: Rotate the handle 6 to drive the screw 15 to rotate, causing the two support seats 4 to move away from each other and return to their original positions. The connecting plate 3 separates from the limiting groove 7. The stretched spring 22 drives the vertical plate 8 to return to its original position. The vertical plate 8 applies a pushing force to the push-pull plate 9, and the push-pull plate 9 applies a pushing force to the sliding column 18. That is, the sliding column 18 drives the drive seat 12 to move upward and return to its original position. That is, the pressing cylinder 19 and the pressing block 20 return to their original positions simultaneously. The pressing block 20 separates from the main board 2. At the same time, the support seat 4 applies a pulling force to the lifting plate 13, causing the heat sink 14 to move downward and connect with the support plate 26. That is, the main board 2 is in a relaxed state, which is convenient for disassembly.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit board that is easy to assemble, characterized in that, Includes a base (1) and a main board (2). The base (1) is connected to two support seats (4) for supporting the main board (2). The inner side of each support seat (4) is provided with a limiting groove (7). The limiting groove (7) matches the connecting plates (3) connected to both ends of the main board (2). The top of each support seat (4) is connected to a pressing mechanism for pressing the main board (2). The pressing mechanism includes a guide post (11), a drive seat (12), a pressing cylinder (19), a pressing column (25), a spring (24), and a pressure block (20). The guide post (11) is used to guide the drive seat (12). The drive seat (12) is used to drive the pressing cylinder (19) to rise and fall. The two ends of the pressing column (25) are connected to the pressing cylinder (19) and the pressure block (20). The two ends of the spring (24) are connected to the pressing cylinder (19) and the pressing column (25). The support seat (11) is connected to the main board (25). 4) A push mechanism for driving the drive seat (12) to rise and fall is connected. The push mechanism includes a connecting column (21), a vertical plate (8), a push-pull plate (9), and a second spring (22). The connecting column (21) is slidably connected to the support seat (4), and one end of the connecting column (21) is located in the limiting groove (7), and the other end is connected to the vertical plate (8). The second spring (22) is used to drive the vertical plate (8) to move closer to the support seat (4). The vertical plate (8) is used to drive the push-pull plate (9) to move along the length direction of the push-pull plate (9). One end of the push-pull plate (9) is connected to the drive seat (12). The base (1) is connected to a heat sink (14) for heat dissipation of the main board (2). The two ends of the heat sink (14) are connected to two support seats (4). The base (1) is connected to a drive mechanism for driving the two support seats (4) to move closer or further away from each other. When the motherboard (2) is in the positioning state, the connecting plate (3) is connected to the limiting groove (7), and the connecting plate (3) is pressed against the connecting post (21), the pressure block (20) is pressed against the motherboard (2), and the heat sink (14) is attached to the bottom of the motherboard (2).

2. The circuit board for easy assembly according to claim 1, characterized in that, The pressing mechanism also includes a spring seat (29), an L-shaped seat (10), an oblique hole (17), a rectangular groove (23), a sliding column (18), and a spring (16). The two ends of the guide column (11) are connected to the spring seat (29) and the L-shaped seat (10), and the guide column (11) passes through the top of the L-shaped seat (10). The oblique hole (17) and the rectangular groove (23) are both located on the drive seat (12), and the oblique hole (17) is connected to the rectangular groove (23). The sliding column (18) is slidably connected to the oblique hole (17), and the sliding column (18) is used to drive the drive seat (12) to rise and fall. The spring (16) is used to drive the spring seat (29) to move away from the top of the L-shaped seat (10).

3. The circuit board for easy assembly according to claim 2, characterized in that, The spring (16) is sleeved on the guide post (11), and the two ends of the spring (16) are connected to the spring seat (29) and the L-shaped seat (10).

4. The circuit board for easy assembly according to claim 2, characterized in that, The push-pull plate (9) extends through one side of the L-shaped seat (10), and both ends of the push-pull plate (9) are connected to the sliding column (18) and the vertical plate (8).

5. A circuit board for easy assembly according to claim 1, characterized in that, The support base (4) is provided with a support groove (27), which is connected to the limiting groove (7).

6. The circuit board for easy assembly according to claim 1, characterized in that, The second spring (22) is sleeved on the connecting column (21), and both ends of the second spring (22) are connected to the vertical plate (8) and the support seat (4).

7. The circuit board for easy assembly according to claim 1, characterized in that, The heat sink (14) has a lifting plate (13) hinged at both ends, and the end of the lifting plate (13) is hinged to the corresponding support (4).

8. The circuit board for easy assembly according to claim 1, characterized in that, The driving mechanism includes a handle (6), a screw (15), and two support plates (26). The handle (6) is used to drive the screw (15) to rotate. The screw (15) is threadedly connected to the two support seats (4). The screw (15) passes through the two support plates (26), and the screw (15) and the support plates (26) are rotatably connected.

9. A circuit board for easy assembly according to claim 8, characterized in that, The support plate (26) is fixed to the top of the base (1), and the support plate (26) is used to limit the heat sink (14).

10. The circuit board operation method according to any one of claims 1-9, characterized in that, The operation includes the following steps: Step 1: Support both ends of the main board (2) in the support groove (27), and align the connecting plate (3) with the corresponding limiting groove (7). Rotate the handle (6) to drive the screw (15) to rotate, so that the two support seats (4) move closer to each other, that is, the end of the connecting plate (3) is gradually inserted into the limiting groove (7). The connecting plate (3) applies a pushing force to the connecting column (21), so that the vertical plate (8) moves away from the support seat (4). The second spring (22) is gradually stretched. The vertical plate (8) applies a pulling force to the push-pull plate (9), that is, the push-pull plate (9) drives the sliding column (18) to slide in the inclined hole (17), driving the drive seat (12) to move down. That is, the guide column (11), the pressing cylinder (19), and the pressure block (20) move down synchronously. The first spring (16) is gradually compressed. At the same time, the lifting plate (13) lifts up the heat sink (14). Step 2: When the two support seats (4) move a suitable distance, the connecting plate (3) is fully inserted into the limiting groove (7), the end of the connecting plate (3) is pressed against the connecting column (21), the sliding column (18) moves upward relative to the drive seat (12), the pressure block (20) is pressed against the top of the main board (2), at this time the spring three (24) is in a compressed state, and the heat sink (14) is supported on the bottom of the main board (2), so as to achieve full locking and positioning of the main board (2); Step 3: Rotate the handle (6) to drive the screw (15) to rotate, so that the two support seats (4) move away from each other and return to their original positions. The connecting plate (3) separates from the limiting groove (7). The stretched spring 2 (22) drives the vertical plate (8) to return to its original position. The vertical plate (8) applies a pushing force to the push-pull plate (9). The push-pull plate (9) applies a pushing force to the slide column (18). That is, the slide column (18) drives the drive seat (12) to move up and return to its original position. That is, the pressing cylinder (19) and the pressing block (20) return to their original positions simultaneously. The pressing block (20) separates from the main board (2). At the same time, the support seat (4) applies a pulling force to the lifting plate (13), so that the heat sink (14) moves down and connects with the support plate (26). That is, the main board (2) is in a relaxed state, which is convenient for disassembly.

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