Circuit board fixed by screwless clasp

Abstract

The utility model relates to electronic equipment structure technical field discloses the circuit board of adopting exempt from screw buckle fixing, including first shell, second shell and be used for adjusting assembly of fixed circuit board ontology. The adjusting assembly includes fixed buckle block, slide rail and sliding buckle block, the slide rail is opened with a plurality of clamping grooves, the sliding buckle block is connected on the slide rail, and its inside is equipped with pressing block, clamping block and spring, and the clamping block can be made to separate the clamping groove by pressing the pressing block, to adjust the position of sliding buckle block, and the circuit board further includes the connecting assembly for locking shell, and it includes connecting column, fixed block, extrusion block and threaded column, by rotating the threaded column, can make its extrusion or release the extrusion block, and then lock or loosen the connecting column. The utility model solves the single of fixed structure size in the prior art, the problem of inconvenient dismounting, has the beneficial effect that general purpose is strong, can adjust quickly, tool operation is exempted from all the way, is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of electronic device structure technology, and in particular to a circuit board fixed by a screwless snap fastener. Background Technology

[0002] Circuit boards, as the core carrier of modern electronic devices, house processors, memory, and various electronic components. To ensure the stability and reliability of electronic devices during operation, transportation, or use, circuit boards need to be securely and firmly installed inside the device casing to prevent loosening, short circuits, or damage caused by vibration or impact.

[0003] In existing technologies, one of the most common methods for securing circuit boards is by using screws. Typically, multiple threaded posts corresponding to mounting holes on the circuit board are pre-molded integrally inside the casing. During assembly, the circuit board is placed in the designated position, and screws are passed through the mounting holes on the circuit board and screwed into the threaded posts, thus firmly securing the circuit board to the casing. This method is simple in structure, reliable in connection, and is currently the most widely used technical solution.

[0004] However, this mounting method, which relies on screws and threaded posts, has inherent limitations. Because the position of the threaded posts is completely determined during the mold design and manufacturing stage, a single housing model can only fit a circuit board of a specific size and mounting hole layout. In today's rapidly evolving product landscape, hardware upgrades or changes in component suppliers often lead to changes in the size or layout of the circuit board. In such cases, the original housing becomes unusable.

[0005] This results in a general lack of adjustability in the existing internal structures used to fix circuit boards, making them incompatible with circuit boards of different sizes and lacking versatility. Whenever a different circuit board needs to be replaced, companies must reinvest in the design and manufacture of the casing molds, which not only significantly increases production costs but also prolongs product development and time-to-market cycles, slowing down market responsiveness.

[0006] Therefore, this utility model proposes a circuit board that is fixed with screwless clips to overcome the shortcomings of the prior art. Utility Model Content

[0007] In view of the problems of existing devices for fixing circuit boards, such as the single fixing structure size and incompatibility with different types of circuit boards, this utility model aims to provide a circuit board fixing device with an improved structure that can effectively solve the above problems by using screwless clips.

[0008] This utility model provides a circuit board fixed by screwless snap fasteners, including a first housing and a second housing, which are closable to accommodate the circuit board body; it also includes an adjustment component fixedly connected to the inside of the first housing, the adjustment component being used to fix the circuit board body.

[0009] The adjustment assembly includes a fixed latch block, a slide rail, a sliding latch block, a pressing block, a locking block, and a spring.

[0010] The fixed latch block is spaced apart from the slide rail, and the sliding latch block is slidably connected to the slide rail. The sliding latch block and the fixed latch block are used to clamp the circuit board body relative to each other. The slide rail has multiple slots. The pressing block is slidably disposed in the sliding latch block, and the latch block is fixedly connected to the pressing block. The spring is sleeved between the pressing block and the sliding latch block.

[0011] Furthermore, the locking block engages with one of the slots under the return force of the spring, thus locking the position of the sliding latch block through this structural combination.

[0012] Preferably, the circuit board secured with screwless clips further includes a connecting assembly for locking the first housing and the second housing. The connecting assembly includes a first connecting block fixedly connected to the first housing and a second connecting block fixedly connected to the second housing; the connecting assembly also includes a connecting post fixedly connected at one end to the first connecting block, a fixing block fixedly connected to the second connecting block and having internal threads, and a pressing block sleeved on the connecting post; the connecting assembly further includes a threaded post with external threads, the threaded post being threadedly connected to the internal threads of the fixing block, and one end of the threaded post abutting against the pressing block.

[0013] Preferably, the compression block and the connecting post are fitted with a clearance. When the threaded post is screwed into the fixing block, the threaded post compresses the compression block, causing the compression block to deform and press against the connecting post, thereby achieving reliable locking.

[0014] Preferably, the outer end of the threaded post is fixedly connected to a knob that can be manually rotated. This structure makes it easy for users to lock or unlock by hand, improving the convenience of use.

[0015] Preferably, both the fixed latch block and the sliding latch block are provided with slots for accommodating the end of the circuit board body. This slot structure can more securely limit and clamp the circuit board body, preventing it from shaking during use.

[0016] Preferably, the sliding direction of the sliding buckle block is parallel to the length direction of the slide rail. This setting ensures that the sliding buckle block moves smoothly during adjustment and ensures that it is aligned with the clamping surface of the fixed buckle block.

[0017] Preferably, the sliding direction of the pressing block is the first direction, and the direction in which the locking block engages with the slot is the second direction, and the first direction and the second direction are perpendicular to each other. This orthogonal structural design makes the conversion between the pressing unlocking action and the locking action direct and effective.

[0018] Preferably, when the pressing block slides to the first position, the locking block is engaged in the slot under the restoring force of the spring, thus locking; when the pressing block slides to the second position, the spring is compressed, and the locking block disengages from the slot, thus releasing the lock. This two-stage structure clearly defines the locking and unlocking modes of the device.

[0019] This utility model has the following beneficial effects: 1. This utility model, by setting a sliding buckle block that can slide on the slide rail and achieve multi-point positioning through the spring buckle block, and making it cooperate with the fixed buckle block, solves the problem that the existing circuit board fixing structure has a single size and cannot be compatible with different models of circuit boards. It achieves the technical effect of being able to flexibly and quickly adjust the clamping distance to fix a variety of different sizes of circuit boards, and significantly improves the versatility of the device.

[0020] 2. This utility model locks the outer shell by setting a connecting assembly consisting of a manually rotatable threaded column, a pressing block and a connecting column. This solves the problem that the disassembly and assembly of the outer shell in the prior art requires the use of tools such as screwdrivers, which is cumbersome and inefficient. It achieves the technical effect of quickly opening, closing and locking the outer shell without tools, and improves the convenience of assembly and maintenance.

[0021] 3. This utility model integrates a quick-adjustable circuit board clip fixing structure with a tool-free housing locking structure, resulting in a compact, reasonable, and logical overall structure. Compared with existing technologies, it achieves a fully tool-free operation from opening the housing and adjusting the clamps to closing the housing, significantly improving the overall efficiency of replacing circuit boards. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the circuit board using screwless clip fixing proposed in this utility model; Figure 2 This is a schematic diagram of the first outer shell of the circuit board using screwless snap fasteners as proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the image; Figure 4 for Figure 2 Enlarged view of point B in the image.

[0023] Legend: 1. First outer shell; 2. Second outer shell; 3. First connecting block; 4. Second connecting block; 5. Circuit board body; 6. Adjustment component; 601. Fixing buckle block; 602. Slide rail; 603. Sliding buckle block; 604. Pressing block; 605. Locking block; 606. Spring; 607. Locking groove; 7. Connecting component; 701. Connecting post; 702. Threaded post; 703. Fixing block; 704. Pressing block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] Example: Please refer to Figures 1 to 4 This utility model provides a circuit board that is fixed with screwless clips, which aims to solve the problems in the prior art where the fixed structure of the circuit board shell is usually of a single size and cannot be compatible with different models of circuit boards, and the opening and closing requires tools, which makes operation inconvenient.

[0026] like Figure 1 As shown, the circuit board using screwless snap-fit ​​fixing includes a first housing 1 and a second housing 2, which are closable to form an internal space for accommodating the circuit board body 5. The device also includes an adjustment component 6 fixedly connected to the inside of the first housing 1 and a connection component 7 for locking the first housing 1 and the second housing 2; the adjustment component 6 is used to fix the circuit board body 5.

[0027] like Figure 2 and Figure 3As shown, the adjustment component 6 includes a fixed latch block 601, a slide rail 602, a sliding latch block 603, a pressing block 604, a locking block 605, and a spring 606. Specifically, the fixed latch block 601 is spaced apart from the slide rail 602, and the sliding latch block 603 is slidably connected to the slide rail 602. The sliding latch block 603 and the fixed latch block 601 are used to clamp the two ends of the circuit board body 5. Both the fixed latch block 601 and the sliding latch block 603 have slots for accommodating the ends of the circuit board body 5. To achieve the positioning of the sliding latch block 603, multiple slots 607 are provided in the slide rail 602. The pressing block 604 is slidably disposed in the sliding latch block 603, and the locking block 605 is fixedly connected to the pressing block 604. The spring 606 is sleeved on the sliding latch block 604. Located between the pressing block 604 and the sliding latch block 603, the latch block 605 is engaged in one of the multiple latching slots 607 under the restoring force of the spring 606 to fix the sliding latch block 603. More specifically, when the pressing block 604 slides to the first position, the latch block 605 is engaged in the latching slot 607 under the restoring force of the spring 606. When the pressing block 604 is slid to the second position, the spring 606 is compressed, causing the latch block 605 to disengage from the latching slot 607. At this time, the sliding latch block 603 can move along a sliding direction parallel to the length of the slide rail 602. The sliding direction of the pressing block 604 is the first direction, and the direction in which the latch block 605 engages in the latching slot 607 is the second direction. The first direction and the second direction are perpendicular to each other.

[0028] To enable tool-free opening, closing, and locking of the first outer shell 1 and the second outer shell 2, this embodiment also includes a connecting component 7; please refer to the following for details. Figure 1 and Figure 4 The structure of connecting component 7 will be described in detail below: The connecting assembly 7 includes a first connecting block 3, a second connecting block 4, a connecting post 701, a fixing block 703, a pressing block 704, and a threaded post 702. The first connecting block 3 is fixedly connected to the first outer shell 1, and the second connecting block 4 is fixedly connected to the second outer shell 2. One end of the connecting post 701 is fixedly connected to the first connecting block 3, thus the connecting post 701 moves together with the first outer shell 1. The fixing block 703 is fixedly connected to the second connecting block 4 and has internal threads, serving to provide a threaded hole for the threaded post 702. The pressing block 704 is sleeved on the connecting post 701, and the pressing block 704 and the connecting post 701 are fitted with a clearance to ensure that the connecting post 701 can move freely within the pressing block 704 when not under pressure. The threaded post 702 has external threads. The threaded post 702 and the internal thread of the fixed block 703 form a threaded connection. When the threaded post 702 is rotated, it can rise or fall axially on the fixed block 703. In the assembled state, one end of the threaded post 702 is used to abut against the pressing block 704. When the threaded post 702 is screwed into the fixed block 703, the threaded post 702 moves downward and presses the pressing block 704, causing the pressing block 704 to deform and contract inward, thereby pressing against the internal connecting post 701 and locking the first outer shell 1 and the second outer shell 2. Conversely, when the threaded post 702 is screwed out, the pressure on the pressing block 704 is released, and the connecting post 701 can be pulled out from the pressing block 704, thereby opening the outer shell. For convenient manual operation, a knob that can be manually rotated is fixedly connected to the outer end of the threaded post 702.

[0029] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, to further clarify the locking principle of the connecting component 7, please refer to... Figure 4 The compression block 704 and the connecting post 701 are fitted with a gap, which ensures that the connecting post 701 can be smoothly inserted or pulled out in the unlocked state. When the threaded post 702 is screwed into the fixing block 703, its compression force is applied to the compression block 704, causing the compression block 704 to deform. This deformation causes the inner hole of the compression block 704 to shrink, thereby eliminating the gap between it and the connecting post 701, and pressing the connecting post 701 tightly through friction.

[0030] As another preferred embodiment, to facilitate user operation, the outer end of the threaded post 702 is fixedly connected to a knob that can be manually rotated. The surface of the knob can be knurled or grooved to increase friction and facilitate manual rotation.

[0031] As another preferred embodiment, to securely clamp the circuit board body 5, such as... Figure 3As shown, both the fixed latch block 601 and the sliding latch block 603 have slots for accommodating the ends of the circuit board body 5. The two ends of the circuit board body 5 are respectively inserted into these two slots to prevent it from shifting laterally or longitudinally.

[0032] As a more preferred embodiment, in order to clarify the movement mode of the sliding latch block 603, the sliding direction of the sliding latch block 603 is parallel to the length direction of the slide rail 602. This parallel setting ensures the smoothness of the adjustment process and the parallelism after clamping.

[0033] As a further preferred embodiment, to clarify the operational relationships within the regulating component 6, such as... Figure 3 As shown, the sliding direction of the pressing block 604 within its sliding latch block 603 is the first direction, while the movement direction of the latch block 605 from disengaging to engaging with the latch slot 607 is the second direction. The first and second directions are perpendicular to each other. This perpendicular structural design allows the pressing action to be accurately converted into the unlocking and locking action of the latch block 605.

[0034] The working principle of this invention, which uses a screwless clip-on fixed circuit board, is as follows: When it is necessary to replace or install a different model of circuit board body 5, the first step is to open the machine. The operator turns the manually rotatable knob in the connecting assembly 7, which causes the threaded post 702 to rotate and move upward in the internal thread of the fixing block 703, thereby releasing the pressure on the pressing block 704. The pressing block 704 returns to its original state, and the tightness between it and the connecting post 701 is released. At this time, the connecting post 701 fixed to the first housing 1 can be freely pulled out from the connecting assembly 7 fixed to the second housing 2, thereby realizing the separation of the first housing 1 and the second housing 2. The whole process does not require tools.

[0035] After opening the outer casing, the operator performs an adjustment and fixing action. The operator presses the pressing block 604 in the adjusting component 6 to overcome the return force of the spring 606 and slide it in the sliding latch block 603 in the first direction. The movement of the pressing block 604 causes the latch block 605, which is fixedly connected to it, to move in the second direction and completely disengage from the slot 607 opened in the slide rail 602. At this time, the sliding latch block 603 is unlocked, and the operator can freely slide the sliding latch block 603 in a direction parallel to the length of the slide rail 602 to adjust the distance between it and the fixed latch block 601 so that it fits the size of the circuit board body 5 to be installed.

[0036] Subsequently, the two ends of the circuit board body 5 are respectively placed into the slots of the fixing buckle block 601 and the sliding buckle block 603, and then the pressing block 604 is released; under the action of the reset elastic force of the spring 606, the pressing block 604 automatically resets to the first position, driving the buckle block 605 to re-enter the corresponding slot 607 at the current position, thereby firmly locking the sliding buckle block 603 on the slide rail 602, completing the clamping and fixing of the circuit board body 5.

[0037] Finally, the closing action is performed, closing the first outer shell 1 and the second outer shell 2, allowing the connecting post 701 to pass through the pressing block 704 and the fixing block 703 again; the threaded post 702 is rotated in the opposite direction, causing it to move downwards in the fixing block 703, and pressing the pressing block 704 again, thus tightly fixing the first outer shell 1 and the second outer shell 2 together by pressing against the connecting post 701. Through the above synergistic effect, this utility model solves the problem in the prior art that the circuit board shell cannot be compatible with circuit boards of different sizes and is inconvenient to disassemble and assemble.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. Circuit boards secured using screwless clips, including: A first housing (1) and a second housing (2) are connected in an openable manner to accommodate a circuit board body (5). Adjustment component (6) is fixedly connected to the inner side of the first housing (1) and is used to fix the circuit board body (5). The adjustment component (6) is characterized in that it includes: a fixed latch block (601); a slide rail (602) spaced apart from the fixed latch block (601); a sliding latch block (603) slidably connected to the slide rail (602), the sliding latch block (603) and the fixed latch block (601) being used to clamp the circuit board body (5) relative to each other; a pressing block (604) slidably disposed within the sliding latch block (603); a locking block (605) fixedly connected to the pressing block (604); a spring (606) sleeved between the pressing block (604) and the sliding latch block (603); and a plurality of locking slots (607) are provided in the slide rail (602). The latch (605) is engaged in one of the latch slots (607) under the restoring force of the spring (606) to fix the sliding latch block (603).

2. The circuit board using screwless snap-fit ​​fixing according to claim 1, characterized in that, It also includes a connecting component (7) for locking the first housing (1) to the second housing (2); The connecting assembly (7) includes: a first connecting block (3), which is fixedly connected to the first housing (1); a second connecting block (4), which is fixedly connected to the second housing (2); and a connecting post (701), one end of which is fixedly connected to the first connecting block (3). A fixing block (703) is fixedly connected to the second connecting block (4), and the fixing block (703) has an internal thread; a pressing block (704) is sleeved on the connecting post (701); A threaded post (702) having an external thread is threaded to the internal thread of the fixing block (703), and one end of the threaded post (702) is used to abut against the pressing block (704).

3. The circuit board using screwless snap-fit ​​fixing according to claim 2, characterized in that, The extrusion block (704) and the connecting column (701) are fitted with a clearance. When the threaded post (702) is screwed into the fixing block (703), the threaded post (702) squeezes the pressing block (704), causing the pressing block (704) to deform and press against the connecting post (701).

4. The circuit board fixed with screwless clips according to claim 2, characterized in that, The outer end of the threaded post (702) is fixedly connected to a knob that can be manually rotated.

5. The circuit board using screwless snap-fit ​​fixing according to claim 1, characterized in that, Both the fixed latch block (601) and the sliding latch block (603) are provided with slots for accommodating the end of the circuit board body (5).

6. The circuit board using screwless snap-fit ​​fixing according to claim 1, characterized in that, The sliding direction of the sliding buckle block (603) is parallel to the length direction of the slide rail (602).

7. The circuit board using screwless snap-fit ​​fixing according to claim 1, characterized in that, The sliding direction of the pressing block (604) is the first direction; The direction in which the card block (605) engages with the card slot (607) is the second direction, and the first direction and the second direction are perpendicular to each other.

8. The circuit board fixed with screwless clips according to claim 1, characterized in that, When the pressing block (604) slides to the first position, the locking block (605) is locked into the locking groove (607) under the action of the reset elastic force of the spring (606). When the pressing block (604) slides to the second position, the spring (606) is compressed and the locking block (605) disengages from the locking slot (607).

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