PCBA mainboard protection device

By incorporating four mounting frames and a clamping plate structure, along with springs and a locking mechanism, the design solves the problems of bulky structure and insufficient applicability of existing PCBA motherboard protection devices. This enables rapid installation and applicability to multiple specifications, improving protection effectiveness and stability.

CN224006934UActive Publication Date: 2026-03-17JIANGXI XINGHONG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing PCBA motherboard protection devices are bulky, have low space utilization, cannot be compatible with the installation of PCBA motherboards of various sizes, and are prone to component loosening and damage during transportation.

Method used

It adopts a four-mounting frame and clamping plate structure, combined with springs and locking mechanisms, and achieves quick installation and buffer protection through the cooperation of screws and locking plates. It is suitable for PCBA boards of different sizes, and provides additional cushioning and limiting functions through rubber pads and buffer pads.

Benefits of technology

It features a simple structure, small footprint, quick assembly and disassembly, and applicability to PCBA boards of various sizes, improving equipment applicability and protection, and reducing the risk of component loosening and damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a PCBA mainboard protection device, which comprises a PCBA board, four mounting frames are arranged around the PCBA board, the inner side of each of the four mounting frames is slidably connected with two clamping plates, the inner side of each of the four mounting frames is fixedly connected with two springs, the other ends of the eight springs are fixedly connected with the eight clamping plates respectively, and the other ends of the eight springs are fixedly connected with the PCBA board. One sides of the eight clamping plates are tightly attached to the four right-angle portions of the PCBA board respectively, and four connecting boxes are arranged on the periphery of the PCBA board. The protective device is simple in structure and small in occupied space, the PCBA board is very convenient and rapid to disassemble and assemble, the protective device can be suitable for PCBA boards of different sizes, and the applicability of the protective device is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of motherboard protection technology, and more specifically, to a PCBA motherboard protection device. Background Technology

[0002] PCBA motherboards refer to motherboards that have undergone the entire manufacturing process of SMT (Surface Mount Technology) or DIP (Dual In-line Package) component insertion from a bare PCB board. They are important electronic components, serving as the support for electronic components and the provider of electronic component circuit connections. PCBA motherboards are equipped with protective devices during use.

[0003] Chinese Patent CN215922908U discloses a PCBA motherboard protection device, comprising a PCBA motherboard and a protective plate. A protective mechanism is provided at the connection between the PCBA motherboard and the protective plate. The protective mechanism includes a first spring located at the bottom of the PCBA motherboard, and a mounting plate located at the bottom of the first spring. The bottom of the mounting plate has a placement groove on the outer side of the inner wall of the protective plate. By designing this protective mechanism, the PCBA motherboard can be fixed simply by placing it in the designated position. Existing PCBA motherboard protection devices lack this mechanism, resulting in longer installation times and potential vibrations during transport, which can loosen components. This new mechanism allows for quick installation of the PCBA motherboard, and the first spring effectively cushions the impact during transport, protecting the components from damage.

[0004] While the aforementioned patents can protect PCBA motherboards, their overall structure suffers from bulkiness and low space utilization. In particular, the fixed frame design severely restricts equipment adaptability and cannot accommodate the installation needs of PCBA motherboards of various sizes. Given the limitations of existing technology, there is an urgent need to develop a PCBA motherboard protection device with flexible adjustment capabilities. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a PCBA motherboard protection device to solve the problems in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution;

[0007] A PCBA motherboard protection device includes a PCBA board. Four mounting frames are arranged around the PCBA board. Two clamping plates are slidably connected to the inner side of each of the four mounting frames. Two springs are fixedly connected to the inner side of each of the four mounting frames. The other ends of eight springs are fixedly connected to eight clamping plates. One side of each of the eight clamping plates is tightly abutted against four right-angled portions of the PCBA board. Four connecting boxes are arranged around the PCBA board. Two connecting rods are slidably connected to the inner wall of each of the four connecting boxes. One side of each of the eight connecting rods is fixedly connected to one of the four mounting frames. Each of the four connecting boxes is equipped with a locking mechanism.

[0008] As a further description of the above technical solution:

[0009] The locking mechanism includes a screw, one end of which is inserted into and threadedly connected to a connecting box. The inner wall of the connecting box has a groove, and a locking plate is slidably connected to the inner wall of the groove. One side of the locking plate is rotatably connected to the screw.

[0010] As a further description of the above technical solution:

[0011] A wear-resistant pad, which is a rubber layer, is fixedly connected to one side of the clamping plate.

[0012] As a further description of the above technical solution:

[0013] Two fixing strips are fixedly connected to the outer side of the mounting frame. A rubber block is fixedly connected to one side of each of the two fixing strips. A contact plate is fixedly connected to one side of each of the two rubber blocks. A sliding rod is fixedly connected to one side of each of the two contact plates. The four sliding rods are respectively inserted through the two fixing strips and slidably connected to them.

[0014] As a further description of the above technical solution:

[0015] A buffer pad, which is a rubber layer, is fixedly connected to one side of the contact plate.

[0016] As a further description of the above technical solution:

[0017] The inner wall of the mounting frame is fixedly connected to two limiting rods, and the two clamping plates are sleeved on the two limiting rods and slidably connected to them.

[0018] Compared with existing technologies, the advantages of this utility model are:

[0019] This protective device has a simple structure, occupies little space, and is very convenient and quick to install and remove PCBA boards. It can be operated with one hand and is applicable to PCBA boards of different sizes, covering mainstream industrial standard sizes. This significantly expands the equipment's adaptability and effectively improves the applicability of the protective device. Attached Figure Description

[0020] Figure 1 One of the perspective views of this utility model;

[0021] Figure 2 This is a second perspective view of the present utility model;

[0022] Figure 3 This is a perspective view of the mounting frame in this utility model;

[0023] Figure 4 This is a sectional perspective view of the connecting box in this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. PCBA board; 2. Mounting frame; 3. Clamping plate; 4. Spring; 5. Connecting box; 6. Connecting rod; 7. Locking mechanism; 701. Screw; 702. Groove; 703. Locking plate; 8. Wear-resistant pad; 9. Fixing strip; 10. Rubber block; 11. Contact plate; 12. Slide rod; 13. Buffer pad; 14. Limiting rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0027] Please see Figures 1-4 In this utility model: a PCBA motherboard protection device includes a PCBA board 1, four mounting frames 2 are arranged around the PCBA board 1, two clamping plates 3 are slidably connected to the inner side of each of the four mounting frames 2, two springs 4 are fixedly connected to the inner side of each of the four mounting frames 2, the other ends of the eight springs 4 are fixedly connected to the eight clamping plates 3 respectively, one side of each of the eight clamping plates 3 is tightly attached to the four corners of the PCBA board 1, four connecting boxes 5 are arranged around the PCBA board 1, two connecting rods 6 are slidably connected to the inner wall of each of the four connecting boxes 5, one side of each of the eight connecting rods 6 is fixedly connected to the four mounting frames 2, and each of the four connecting boxes 5 is provided with a locking mechanism 7; the locking mechanism 7 includes a screw 701, one end of the screw 701 is inserted into the connecting box 5 and threadedly connected thereto, a groove 702 is opened on the inner wall of the connecting box 5, a locking plate 703 is slidably connected to the inner wall of the groove 702, and one side of the locking plate 703 is rotatably connected to the screw 701.

[0028] In this invention, four mounting frames 2 are distributed on the four right-angled sides of the PCBA board 1. The spring force of the spring 4 allows adjacent clamping plates 3 to clamp the PCBA board 1, thus connecting the mounting frames 2 to the PCBA board 1. Adjacent mounting frames 2 are connected to the connecting box 5 via connecting rods 6. Rotating the screw 701 causes the locking plate 703 to slide along the inner wall of the groove 702 until the locking plate 703 presses the two connecting rods 6 against the inner wall of the connecting box 5, thus fixing the positions of the adjacent mounting frames 2. At this point, the four mounting frames 2 form a whole. 2. The four right corners of PCBA board 1 are protected respectively. When PCBA board 1 is dropped or impacted, the mounting frame 2 can replace PCBA board 1 to contact the impacting object, thereby reducing the occurrence of damage to PCBA board 1 and achieving the effect of protecting PCBA board 1. Moreover, when impacted, PCBA board 1 will cause the clamping plate 3 to slide in the corresponding mounting frame 2. During the process, the spring 4 will be compressed or stretched. The elastic force of the spring 4 will cancel out the impact force, thereby achieving the effect of buffering PCBA board 1 and effectively improving the protection effect of PCBA board 1.

[0029] When using PCBA boards 1 of different sizes, the user first rotates the screw 701 in the opposite direction until the locking plate 703 loses its pressure on the connecting rod 6. At this time, the connecting rod 6 can slide in the connecting box 5, thereby adjusting the distance between two adjacent mounting frames 2. The position of the corresponding clamping plate 3 will also change, thus making it suitable for use with PCBA boards 1 of different sizes. After clamping the clamping plate 3 at the four right-angled parts of the PCBA board 1, rotate the screw 701 again to connect and fix the four mounting frames 2, and then protect the PCBA board 1.

[0030] Please see Figure 3 Among them, a wear-resistant pad 8 is fixedly connected to one side of the clamping plate 3, and the wear-resistant pad 8 is a rubber layer.

[0031] In this invention, the wear-resistant pad 8 can reduce wear and extend the service life of the device.

[0032] Please see Figure 3 The outer side of the mounting frame 2 is fixedly connected to two fixing strips 9. A rubber block 10 is fixedly connected to one side of each of the two fixing strips 9. A contact plate 11 is fixedly connected to one side of each of the two rubber blocks 10. A sliding rod 12 is fixedly connected to one side of each of the two contact plates 11. The four sliding rods 12 are respectively inserted into the two fixing strips 9 and slidably connected to them.

[0033] In this invention, the contact plate 11 directly contacts the edge of the PCBA board 1, which can limit the movement of the PCBA board 1. When subjected to impact, if the PCBA board 1 shifts, it will squeeze the contact plate 11, and the contact plate 11 will move towards the fixing strip 9. At this time, the rubber block 10 will be compressed. The rubber block 10 has a certain elasticity. During the compression process, the elasticity of the rubber block 10 will reduce the impact force on the PCBA board 1, thereby achieving a buffering effect on the PCBA board 1 and further improving the protection effect of the PCBA board 1.

[0034] Please see Figure 3 Among them, a buffer pad 13 is fixedly connected to one side of the contact plate 11, and the buffer pad 13 is a rubber layer.

[0035] In this invention, the buffer pad 13 can reduce wear and provide a certain buffering capacity, thereby improving the practicality of the device.

[0036] Please see Figure 3 Among them, the inner wall of the mounting frame 2 is fixedly connected to two limiting rods 14, and the two clamping plates 3 are both sleeved on the two limiting rods 14 and slidably connected to them.

[0037] In this invention, the limiting rod 14 can limit the clamping plate 3 in the mounting frame 2, preventing the clamping plate 3 from sliding out of the mounting frame 2 and improving the stability of the device.

[0038] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A PCBA mainboard protection device, comprising a PCBA board (1), characterized in that: The periphery of the PCBA plate (1) is provided with four mounting frames (2), the inner side of each of the four mounting frames (2) is slidably connected with two clamping plates (3), the inner side of each of the four mounting frames (2) is fixedly connected with two springs (4), the other end of each of the eight springs (4) is fixedly connected with the eight clamping plates (3), one side of each of the eight clamping plates (3) is tightly attached to the four right-angle parts of the PCBA plate (1), the periphery of the PCBA plate (1) is provided with four connecting boxes (5), the inner wall of each of the four connecting boxes (5) is slidably connected with two connecting rods (6), one side of each of the eight connecting rods (6) is fixedly connected with the four mounting frames (2), each of the four connecting boxes (5) is provided with a locking mechanism (7).

2. The PCBA mainboard protection device according to claim 1, characterized in that: The locking mechanism (7) comprises a screw rod (701), one end of the screw rod (701) penetrates through the connecting box (5) and is in threaded connection with the connecting box (5), the inner wall of the connecting box (5) is provided with a groove (702), the inner wall of the groove (702) is slidably connected with a lock plate (703), one side of the lock plate (703) is rotatably connected with the screw rod (701).

3. The PCBA mainboard protection device according to claim 1, characterized in that: One side of the clamping plate (3) is fixedly connected with a wear-resistant pad (8), the wear-resistant pad (8) is a rubber layer.

4. The PCBA mainboard protection device according to claim 1, characterized in that: The outer side of the mounting frame (2) is fixedly connected with two fixed strips (9), one side of each of the two fixed strips (9) is fixedly connected with a rubber block (10), one side of each of the two rubber blocks (10) is fixedly connected with a contact plate (11), one side of each of the two contact plates (11) is fixedly connected with a sliding rod (12), each of the four sliding rods (12) penetrates through the two fixed strips (9) and is in slidable connection with the two fixed strips (9).

5. The PCBA mainboard protection device according to claim 4, characterized in that: One side of the contact plate (11) is fixedly connected with a buffer pad (13), the buffer pad (13) is a rubber layer.

6. The PCBA mainboard protection device according to claim 1, characterized in that: The inner wall of the mounting frame (2) is fixedly connected with two limiting rods (14), each of the two clamping plates (3) is sleeved on the two limiting rods (14) and is in slidable connection with the two limiting rods (14).