A novel circuit board fixing structure

Abstract

The utility model discloses a novel circuit board fixed structure, including circuit board body, the slot of setting on the circuit board body and the release module of setting in the side of slot, this release module includes the locating cover of installing on the circuit board body, the sliding seat of setting in the end of locating cover, the detent ratchet wheel of installing on the sliding seat, the stop pawl of setting in the side of detent ratchet wheel, the detent spring of setting on the sliding seat and being used for driving stop pawl and keep contact with detent ratchet wheel, the unlocking drive arrangement of setting on the locating cover and being used for driving sliding seat movement unlocking and the lock catch spring of setting on the locating cover and being used for pushing sliding seat reset. Adopt in the side of slot through release module to graphic card assembly is positioned and locked, utilizes unlocking drive arrangement to extend to the far place of slot to when facing compact space and big size graphic card assembly, can quick and convenient operation sliding seat movement drive detent ratchet wheel unlocking, the dismounting of each element on the circuit board body is convenient.

Description

Technical Field

[0001] This utility model relates to the field of circuit board assembly technology, and specifically to a novel circuit board fixing structure. Background Technology

[0002] A circuit board is a basic electronic component, typically a thin sheet with one or more layers of conductive material, such as copper, used to connect and support electronic components to form a circuit. The main function of a circuit board is to provide electrical connections and mechanical support between electronic components. It is widely used in electronic devices such as computers, mobile phones, and televisions. The motherboard is a special type of circuit board and a key component in computers or other electronic devices. It typically integrates critical components such as the central processing unit (CPU), memory slots, graphics card slots, expansion slots, and input / output ports. The circuit board on the motherboard connects and supports these components, enabling them to work together to form a complete system.

[0003] As computers continue to develop, the performance and specifications of electronic components on motherboards are also constantly improving. This increases the heat dissipation requirements for each component and the whole system, leading to the continuous expansion of the size of CPUs, graphics cards, and other components. Furthermore, the number of various interfaces, slots, control chips, and heat dissipation modules on the motherboard is also increasing. This results in some slots being blocked by other installed components, making it difficult for users to press and install other components. Improper operation can easily damage the entire motherboard, and the components cannot be released during disassembly, making operation extremely inconvenient.

[0004] For example, Chinese patent application number 202010954846.4 discloses a computer graphics card mounting structure and a computer. This patent discloses a relatively traditional card-mount structure. The graphics card component is inserted into the slot 14 of the socket assembly via a connector 4. The locking components in the card slots 15 on both sides of the slot 14 lock the limiting buckle 5 on the main control board 1, thus achieving card mounting of the graphics card. During disassembly, the pull pin 13 in the locking component needs to be pulled manually to disengage the locking block 16 from the limiting buckle 5, thereby unlocking. Therefore, sufficient space is required around the socket assembly for hand access to unlock the locking component. For the current compact motherboard structure, the slot structure obviously cannot meet the requirements, cannot achieve quick installation and removal of components such as graphics cards, and is difficult to meet the needs of parts replacement and maintenance of computer equipment.

[0005] In view of the above, the inventors propose the following technical solution. Summary of the Invention

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a new type of circuit board fixing structure.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a novel circuit board fixing structure, comprising: a circuit board body, a slot disposed on the circuit board body, and a release module disposed beside the slot. The release module includes a positioning cover mounted on the circuit board body, a sliding seat slidably disposed at the end of the positioning cover, a locking ratchet rotatably mounted on the sliding seat, a stop pawl swayingly disposed beside the locking ratchet, a locking spring disposed on the sliding seat and used to drive the stop pawl to maintain contact with the locking ratchet, an unlocking drive device disposed on the positioning cover and used to drive the sliding seat to move and unlock, and a locking spring disposed on the positioning cover and used to push the sliding seat to reset.

[0008] Furthermore, in the above technical solution, the locking ratchet and the stop pawl are respectively mounted in the middle of the sliding seat via the first support shaft and the second support shaft, and the stop pawl extends and presses against the top of the locking ratchet; the middle part of the sliding seat is provided with a central groove for the locking ratchet to rotate, and a stop connection part is provided below the stop pawl to limit its downward swing; the locking spring is a torsion spring, which is mounted on the second support shaft and pushes the end of the stop pawl to keep it pressed against the locking ratchet.

[0009] Furthermore, in the above technical solution, the locking ratchet is provided with multiple teeth, one side of the end of each tooth is an arc-shaped chamfer, and the other side is a right angle; wherein, the arc-shaped chamfer of the tooth contacts the lower end face of the stop pawl, and the right angle of the tooth contacts the front end face of the stop pawl.

[0010] Furthermore, in the above technical solution, the end of the stop pawl is provided with a downward inclined surface, and the two ends of the inclined surface are arc-shaped chamfered and used to contact the arc-shaped chamfer of the teeth; one end of the locking spring abuts against the upper end surface of the stop pawl, and the upper end surface of the stop pawl is formed with a positioning groove for positioning the end of the locking spring.

[0011] Furthermore, in the above technical solution, one end of the positioning cover is provided with a T-shaped slide rail for slidingly mounting the sliding seat. The middle of the T-shaped slide rail is provided with a groove for the locking spring to push the unlocking drive device to extend into and drive the sliding seat to move. The sliding seat is sleeved on the T-shaped slide rail, and the sliding seat is provided with a force-bearing plate that extends downward into the groove and is located between the unlocking drive device and the locking spring.

[0012] Furthermore, in the above technical solution, a spring stop block is provided inside the positioning cover, which presses against the tail of the locking spring. The spring stop block is located at the innermost part of the groove.

[0013] Furthermore, in the above technical solution, the unlocking drive device includes a pull plate that is slidably disposed in the positioning cover and docked with the sliding seat, a button disposed at the other end of the pull plate and used to push the pull plate to unlock the sliding seat, and a locking member disposed next to the button and used to lock the button.

[0014] Furthermore, in the above technical solution, the button passes through the other end of the positioning cover and can float up and down. One side of the button is provided with an inclined surface for pushing the pull plate to move, and the other end of the pull plate is provided with an inclined rocker for contacting the inclined surface.

[0015] Furthermore, in the above technical solution, the button is provided with a reset spring for lifting the button, and a travel groove for matching the locking component is provided on one side of the button. One end of the locking component is provided with a latching arm that extends into the travel groove, and the travel groove is provided with an upper locking groove and a lower locking groove for locking with the latching arm.

[0016] Furthermore, in the above technical solution, the other end of the locking component is rotatably disposed inside the positioning cover, the upper locking groove is located in the middle of the travel groove, and the locking arm can rotate around the two sides of the upper locking groove.

[0017] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0018] 1. In this utility model, a release module is used to lock the graphics card component on the side of the slot, and the unlocking drive device extends to the far end of the slot. Thus, even when facing a compact space and a large graphics card component, the sliding seat can still be moved quickly and conveniently to drive the locking ratchet to unlock the graphics card component. This addresses the increasingly compact layout of the circuit board body at present, facilitates the disassembly and assembly of various components on the circuit board body, and makes the maintenance of computer equipment more convenient.

[0019] 2. This invention utilizes a unidirectional rotating structure with a locking ratchet and a stop pawl. During the insertion of the graphics card component into the slot, the locking ratchet rotates, causing it to flip above the limiting latch of the graphics card component. The stop pawl prevents the ratchet from rotating in the opposite direction, thus locking the limiting latch. During unlocking, the unlocking drive pulls the sliding block backward, disengaging the locking ratchet from the limiting latch and releasing the graphics card component, allowing it to be easily removed from the slot. Of course, after the locking ratchet locks the limiting latch, the sliding block remains locked to the graphics card component due to the locking spring, preventing it from retracting. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model in the released state;

[0021] Figure 2 This is a schematic diagram of the structure of this utility model in the locked state;

[0022] Figure 3 This is a cross-sectional view of the present invention in the locked state;

[0023] Figure 4 This is a perspective view of the release module in this utility model;

[0024] Figure 5 This is an exploded view of the release module in this utility model. Figure 1 ;

[0025] Figure 6 This is an exploded view of the release module in this utility model. Figure 2 ;

[0026] Figure 7 This is a schematic diagram showing the connection state of the sliding seat, the locking ratchet, and the stop pawl in this utility model;

[0027] Figure 8 This is an exploded view of the sliding seat, the locking ratchet, and the stop pawl in this utility model.

[0028] Figure 9 This is a schematic diagram of the assembly structure of the button and the locking component in this utility model. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments and accompanying drawings. In this embodiment, the disassembly and assembly of a graphics card is used as an example for detailed description.

[0030] See Figures 1 to 9As shown, a novel circuit board fixing structure includes a circuit board body 1, a slot 2 disposed on the circuit board body 1, and a release module 3 disposed beside the slot 2. The release module 3 includes a positioning cover 31 mounted on the circuit board body 1, a sliding seat 32 slidably disposed at the end of the positioning cover 31, a locking ratchet 33 rotatably mounted on the sliding seat 32, a stop pawl 34 oscillatingly disposed beside the locking ratchet 33, a locking spring 35 disposed on the sliding seat 32 for driving the stop pawl 34 to maintain contact with the locking ratchet 33, an unlocking drive device 36 disposed on the positioning cover 31 for driving the sliding seat 32 to move and unlock, and a locking spring 37 disposed on the positioning cover 31 for pushing the sliding seat 32 to reset. The graphics card component A is locked in place by releasing the module 3 on the side of the slot 2. The unlocking drive device 36 extends to a distance from the slot 2. Thus, even in the face of a compact space and a large graphics card component A, the sliding seat 32 can still be moved to drive the locking ratchet 33 to unlock the graphics card component A. This addresses the increasingly compact layout of the circuit board body 1, facilitates the disassembly and assembly of various components on the circuit board body 1, and makes the maintenance of computer equipment more convenient. Secondly, the unidirectional rotational structure of the locking ratchet 33 and the stop pawl 34 allows the locking ratchet 33 to rotate during the insertion of the graphics card component A into slot 2. This causes the locking ratchet 33 to flip above the limit latch A1 of the graphics card component A. The stop pawl 34 restricts the ratchet 33 from rotating in the opposite direction, thus locking the limit latch A1. During unlocking, the unlocking drive 36 pulls the sliding seat 32 backward, disengaging the locking ratchet 33 from the limit latch A1, thereby releasing the graphics card component A and allowing it to be smoothly removed from slot 2. Of course, after the locking ratchet 33 locks the limit latch A1, the sliding seat 32 remains locked to the graphics card component A due to the action of the locking spring 37 and will not move backward.

[0031] The locking ratchet 33 and the stop pawl 34 are respectively mounted in the middle of the sliding seat 32 via the first support shaft 38 and the second support shaft 39, and the stop pawl 34 extends and presses against the top of the locking ratchet 33; the middle part of the sliding seat 32 is provided with a central groove 320 for the locking ratchet 33 to rotate, and a stop connection part 321 is provided below the stop pawl 34 to limit its downward swing; the locking spring 35 is a torsion spring, which is mounted on the second support shaft 39 and pushes the end of the stop pawl 34 to keep it pressed against the locking ratchet 33.

[0032] The locking ratchet 33 is provided with a plurality of teeth 331, each tooth 331 having an arc-shaped chamfer on one side and a right angle on the other side; wherein, the arc-shaped chamfer of the tooth 331 contacts the lower end face of the stop pawl 34, and the right angle of the tooth 331 contacts the front end face of the stop pawl 34.

[0033] The end of the stop pawl 34 is provided with a downward inclined surface 341, and the two ends of the inclined surface 341 are arc-shaped chamfered and used to contact the arc-shaped chamfer of the tooth 331; one end of the locking spring 35 abuts against the upper end surface of the stop pawl 34, and the upper end surface of the stop pawl 34 is formed with a positioning groove 342 for positioning the end of the locking spring 35.

[0034] One end of the positioning cover 31 is provided with a T-shaped slide rail 311 for slidingly mounting the sliding seat 32. The middle part of the T-shaped slide rail 311 is provided with a groove 312 for the locking spring 37 to push the unlocking drive device 36 into the groove and drive the sliding seat 32 to move. The sliding seat 32 is sleeved on the T-shaped slide rail 311. The sliding seat 32 is provided with a force plate 322 that extends downward into the groove 312 and is located between the unlocking drive device 36 and the locking spring 37.

[0035] The positioning cover 31 is provided with a spring stop 30 that presses against the tail of the locking spring 37. The spring stop 30 is located at the innermost part of the groove 312.

[0036] The unlocking drive device 36 includes a pull plate 361 slidably disposed within the positioning cover 31 and connected to the sliding seat 32, a button 362 disposed at the other end of the pull plate 361 for pushing the pull plate 361 to unlock the sliding seat 32, and a locking member 363 disposed beside the button 362 for locking the button 362. The button 362 passes through the other end of the positioning cover 31 and can float up and down. One side of the button 362 is provided with an inclined surface 362A for pushing the pull plate 361 to move, and the other end of the pull plate 361 is provided with an inclined rocker plate 361A for contacting the inclined surface 362A. By using the inclined surface 362A on one side of the button 362 to push the pull plate 361 to move, when the button 362 is pressed, the inclined surface 362A contacts the inclined rocker plate 361A and pushes the pull plate 361 to move outward, thereby realizing the release of the limit buckle A1 by the sliding seat 32 driving the locking ratchet 33.

[0037] The button 362 is provided with a reset spring 364 for lifting the button 362. One side of the button 362 is also provided with a travel groove 362B for matching with a locking member 363. One end of the locking member 363 is provided with a locking arm 363A extending into the travel groove 362B. The travel groove 362B is provided with an upper locking groove 362C and a lower locking groove 362D for locking with the locking arm 363A. The other end of the locking member 363 is rotatably disposed within the positioning cover 31. The upper locking groove 362C is located in the middle of the travel groove 362B, and the locking arm 363A can rotate around both sides of the upper locking groove 362C. The travel groove 362B is provided with a guide block 363E for the cyclic movement of the buckle arm 363A. The upper and lower sides of the guide block 363E are formed with guide slopes, which allow the buckle arm 363A to cyclically switch positions around the travel groove 362B.

[0038] A latching arm 363A is provided on the locking member 363, extending into the travel groove 362B of the button 362. This, in conjunction with a reset spring 364, keeps the button 362 lifted. When the button 362 is pressed, the latching arm 363A moves upward along the travel groove 362B to engage with the upper locking groove 362C, keeping the button 362 in the pressed state. When the button 362 is pressed again, the latching arm 363A disengages from the upper locking groove 362C, and the reset spring 364 lifts the button 362, causing the latching arm 363A to move along the travel groove 362B into the lower locking groove 352B, keeping the button 362 in the extended state. Furthermore, the other end of the locking member 363 is hinged to the positioning cover 31, allowing the latching arm 363A at one end of the locking member 363 to swing when subjected to force within the travel groove 362B, thus achieving smooth movement within the locking groove 352.

[0039] In summary, when using this utility model, firstly, pressing button 362 raises the release module 3, which is then in the unlocked state. Next, the connector A2 of graphics card component A is inserted into slot 2. During the insertion of graphics card component A, the limiting buckle A1 of graphics card component A first contacts the locking ratchet 33, pushing it to rotate. After the limiting buckle A1 is fully inserted into the recess 312, one tooth 331 of the locking ratchet 33 flips over to the top of the limiting buckle A1. Lock the limit buckle A1 and the graphics card component A; furthermore, when it is necessary to release the graphics card component A, simply press the button 362, which pushes the pull plate 361 back and pulls the sliding seat 32 to drive the locking ratchet 33 back to unlock the limit buckle A1. At this time, the locking arm 363A of the locking component 363 moves from the lower locking groove 352B along the travel groove 362B to the upper locking groove 362C, keeping the button 362 pressed. At this time, the graphics card component A can be pulled out from the slot 2.

[0040] Meanwhile, when button 362 is pressed, the locking component 363 keeps button 362 pressed by the latching arm 363A and limits the pull plate 361. If graphics card component A is then inserted into slot 2, the sliding seat 32 will not be reset, and the locking ratchet 33 will not be above the limit latch A1, thus failing to lock graphics card component A. Therefore, the state of button 362 indicates whether the release module 3 is in a locked or open state. When graphics card component A needs to be installed again, simply press button 362 to move the latching arm 363A of the latching component 363 along the travel groove 362B into the lower latching groove 352A. At this time, button 362 loses its limit on the pull plate 361. Under the action of the locking spring 37, the sliding seat 32 is pushed to drive the latching ratchet 33 to reset. When graphics card component A is assembled, the process of the limit buckle A1 being inserted into the groove 312 will push the latching ratchet 33 to flip, so that the latching ratchet 33 flips above the limit buckle A1, thereby locking graphics card component A.

[0041] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A novel circuit board fixing structure, comprising a circuit board body (1), a slot (2) disposed on the circuit board body (1), and a release module (3) disposed beside the slot (2), characterized in that: The release module (3) includes a positioning cover (31) mounted on the circuit board body (1), a sliding seat (32) slidably disposed at the end of the positioning cover (31), a locking ratchet (33) rotatably mounted on the sliding seat (32), a stop pawl (34) swayably disposed beside the locking ratchet (33), a locking spring (35) disposed on the sliding seat (32) and used to drive the stop pawl (34) to keep in contact with the locking ratchet (33), an unlocking drive device (36) disposed on the positioning cover (31) and used to drive the sliding seat (32) to move and unlock, and a locking spring (37) disposed on the positioning cover (31) and used to push the sliding seat (32) to reset.

2. The novel circuit board fixing structure according to claim 1, characterized in that: The locking ratchet (33) and the stop pawl (34) are respectively mounted on the middle of the sliding seat (32) via the first support shaft (38) and the second support shaft (39), and the stop pawl (34) extends and presses against the top of the locking ratchet (33); the middle part of the sliding seat (32) is provided with a central groove (320) for the locking ratchet (33) to rotate, and a stop connection part (321) is provided below the stop pawl (34) to limit its downward swing; the locking spring (35) is a torsion spring, which is mounted on the second support shaft (39) and pushes the end of the stop pawl (34) to keep it pressing against the locking ratchet (33).

3. The novel circuit board fixing structure according to claim 1, characterized in that: The locking ratchet (33) is provided with multiple teeth (331), each tooth (331) has an arc-shaped chamfer on one side and a right angle on the other side; wherein, the arc-shaped chamfer of the tooth (331) contacts the lower end face of the stop pawl (34), and the right angle of the tooth (331) contacts the front end face of the stop pawl (34).

4. The novel circuit board fixing structure according to claim 3, characterized in that: The end of the stop pawl (34) is provided with a downward inclined surface (341), the two ends of which are arc-shaped chamfered and used to contact the arc-shaped chamfer of the tooth (331); one end of the locking spring (35) abuts against the upper end surface of the stop pawl (34), and the upper end surface of the stop pawl (34) is formed with a positioning groove (342) for positioning the end of the locking spring (35).

5. The novel circuit board fixing structure according to claim 1, characterized in that: One end of the positioning cover (31) is provided with a T-shaped slide rail (311) for sliding mounting of the sliding seat (32). The middle part of the T-shaped slide rail (311) is provided with a groove (312) for the locking spring (37) to push the unlocking drive device (36) to extend into and drive the sliding seat (32) to move. The sliding seat (32) is sleeved on the T-shaped slide rail (311). The sliding seat (32) is provided with a force plate (322) extending downward into the groove (312) and located between the unlocking drive device (36) and the locking spring (37).

6. The novel circuit board fixing structure according to claim 5, characterized in that: The positioning cover (31) is provided with a spring stop (30) that presses against the tail of the locking spring (37), and the spring stop (30) is located at the innermost part of the groove (312).

7. A novel circuit board fixing structure according to any one of claims 1-6, characterized in that: The unlocking drive device (36) includes a pull plate (361) that is slidably disposed in the positioning cover (31) and docked with the sliding seat (32), a button (362) disposed at the other end of the pull plate (361) and used to push the pull plate (361) to unlock the sliding seat (32), and a locking member (363) disposed next to the button (362) and used to lock the button (362).

8. The novel circuit board fixing structure according to claim 7, characterized in that: The button (362) extends through the other end of the positioning cover (31) and can float up and down. One side of the button (362) is provided with an inclined surface (362A) for pushing the pull plate (361) to move, and the other end of the pull plate (361) is provided with an inclined rocker (361A) for contacting the inclined surface (362A).

9. A novel circuit board fixing structure according to claim 8, characterized in that: The button (362) is provided with a reset spring (364) for lifting the button (362). The button (362) is also provided with a travel groove (362B) for matching with the locking member (363). One end of the locking member (363) is provided with a latching arm (363A) that extends into the travel groove (362B). The travel groove (362B) is provided with an upper locking groove (362C) and a lower locking groove (362D) for locking with the latching arm (363A).

10. A novel circuit board fixing structure according to claim 9, characterized in that: The other end of the locking member (363) is rotatably disposed inside the positioning cover (31), the upper locking groove (362C) is located in the middle of the travel groove (362B), and the locking arm (363A) can move around the upper locking groove (362C) on both sides.

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