Accompanying protection and test switching integrated device for board-level product

Abstract

The invention relates to an accompanying protection and test switching integrated device for a board-level product, and the device comprises a protection frame which is used for bearing and fixing a circuit board; the adapter connector module is fixed on the protective frame and is used for converting a connector signal of the circuit board into a standardized external interface; the signal adapter plate is fixed in the protective frame, is positioned above the circuit board, is electrically contacted with a test hole in the circuit board through an elastic probe, and leads out a test point signal; the protection frame is provided with a fine adjustment mechanism which is used for finely adjusting the installation position of the signal adapter plate relative to the protection frame. According to the invention, functions of physical protection, electric connector switching and test hole signal leading-out are integrated, full-flow test screening can be completed along with board-level products, physical and electrical damage of the products in the transfer and test process is effectively avoided, and contact loss of connectors and test holes of the products is remarkably reduced.

Description

Technical Field

[0001] This invention belongs to the field of inertial measurement technology, specifically relating to an integrated device for accompanying protection and testing of board-level products. Background Technology

[0002] As electronic devices, especially inertial measurement units, become increasingly smaller and lighter, their internal board-level products (circuit boards) exhibit diverse shapes, sizes, and connector specifications. Throughout the entire production and testing process, these board-level products are typically in a "bare board" state without any protective casing.

[0003] In existing technologies, board-level products require frequent plugging and unplugging of their connectors when moving between various testing processes. This operation method has the following significant problems: ① Appearance and physical damage: Frequent transfer and plugging / unplugging can easily lead to damage to the appearance of the circuit board, and damage or detachment of components due to impacts; ② Connector damage: Repeated plugging and unplugging of connectors can easily cause wear, bending, or even breakage of their pins. At the same time, during the operation, metal shavings and other foreign objects may be drawn out, causing connector pin retraction or poor contact, affecting product quality and reliability; ③ Inconsistent interfaces and low testing efficiency: Because the connector types and specifications of different board-level products are different, testers need to frequently change test cables or adapters, which is cumbersome, reduces testing efficiency, and is prone to damage due to incorrect plugging; ④ Test hole testing risks: To test the signals on the circuit board, multimeter probes need to be used to directly contact the test holes or test points on the circuit board, which poses a risk of scratching the copper foil of the circuit board and puncturing nearby micro-components.

[0004] Therefore, there is an urgent need for a solution that can effectively protect multi-type board-level products, unify external interfaces, and reduce the number of plug-in / plug-out cycles. Summary of the Invention

[0005] To address the aforementioned technical problems in the existing technology, this invention proposes an integrated device for accompanying protection and testing of board-level products, comprising: A protective frame (1) is used to support and fix the circuit board (4); An adapter connector module (2) is fixed on the protective frame (1) and is used to convert the built-in connector signal of the circuit board (4) into a standardized external interface; A signal adapter board (3) is fixed inside the protective frame (1) and located above the circuit board (4). It makes electrical contact with the test hole on the circuit board (4) through an elastic probe and leads out the test point signal. The protective frame (1) is provided with a fine-tuning mechanism for fine-tuning the installation position of the signal adapter board (3) relative to the protective frame (1).

[0006] Furthermore, the protective frame (1) has an internal cavity (11) whose shape matches the circuit board (4).

[0007] Furthermore, the accommodating cavity (11) is provided with cable lead-out holes and positioning structures around its perimeter or at its bottom.

[0008] Furthermore, the protective frame (1) is a rigid structure.

[0009] Furthermore, the fine-tuning mechanism includes an adjusting stud (12) and a push block (13). The adjusting stud (12) provides a pushing force by turning it forward and backward to adjust the position of the push block (13). The push block (13) contacts the support of the signal adapter board (3). The adjusting stud (12) and the push block (13) work together on the signal adapter board (3) to achieve its position fine-tuning.

[0010] Furthermore, the elastic probe is a spring probe.

[0011] Furthermore, the adapter connector module (2) is fixed to the protective frame (1) by screws.

[0012] Furthermore, the adapter connector module (2) includes an external adapter connector, which connects to the fixed connector or wire-spinning connector on the circuit board (4) via a cable, converting the signals of each connector into an external interface for connection with the standard cable of an external test device.

[0013] Furthermore, the adapter connector module (2) includes an internal adapter connector that communicates with a connector on the circuit board.

[0014] Furthermore, the protective frame (1) is provided with a foolproof structure that matches the circuit board to ensure the correct insertion direction of the circuit board and external test cables.

[0015] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an integrated testing and protection device for circuit boards. This device integrates physical protection, electrical connector conversion, and test hole signal extraction functions. It can accompany board-level products through the entire testing and screening process, effectively avoiding physical and electrical damage to products during transportation and testing, and significantly reducing contact loss of its built-in connectors and test holes. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present invention.

[0017] Reference numerals: 1. Protective frame; 11. Accommodating cavity; 12. Adjusting stud; 13. Push block; 2. Adapter connector module; 21. Adapter connector one; 22. Adapter connector two; 23. Adapter connector three; 24. Adapter connector four; 25. Adapter connector five; 3. Signal adapter board; 4. Circuit board. Specific implementation methods To make the objectives, contents, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0018] like Figure 1 As shown, in a specific embodiment of the present invention, it includes: a protective frame 1, an adapter connector module 2, and a signal adapter board 3.

[0019] The protective frame 1 has an internal cavity 11 whose shape matches the circuit board 4, thus providing structural support.

[0020] The adapter connector module 2 is fixed to the perimeter of the protective frame 1 by screws. It is equipped with external adapter connectors, including adapter connector 1 21, adapter connector 22 and adapter connector 3 23; and internal adapter connectors, including adapter connector 4 24 and adapter connector 5 25. Adapter connector 4 24 and adapter connector 5 25 are connected to the connectors on the circuit board to realize the transfer of electrical signals on the circuit board.

[0021] The signal adapter board 3 is fixed on the circuit board 4 and mounted on the protective frame 1 by screws. The adjusting studs 12 and push blocks 13 on the protective frame 1 are used to fine adjust the position of the signal adapter board 3.

[0022] The protective frame 1 is a rigid structure with an internal cavity 11 that conforms to the shape of the circuit board 4 to be protected, used to support and fix the circuit board 4. Cable exit holes and positioning structures are provided around the cavity 11 or at its bottom. The protective frame 1 also features a precision fine-tuning mechanism, including an adjusting stud 12 and a push block 13, used to fine-tune the mounting position of the signal adapter board 3 to ensure that its elastic probes are accurately aligned with the test holes on the circuit board 4.

[0023] The adapter connector module 2 is installed around the protective frame 1 via the fine-tuning mechanism. Its function is to convert and output the signals of the circuit board connectors. The adapter connector module 2 connects to the fixed connector or drop-wire connector on the circuit board 4 via one or more cables, converting the signals of each connector into an external interface for connection with the standard cables of external testing equipment.

[0024] The signal adapter board 3 is fixedly installed inside the protective frame 1, located above the circuit board 4. The signal adapter board 3 is provided with several elastic probes. When the circuit board 4 is correctly placed in the receiving cavity 11, the tips of these elastic probes make reliable electrical contact with the test holes or test points designed on the circuit board 4. The signal path of the signal adapter board 3 is led to the connector provided on the signal adapter board 3.

[0025] In one specific embodiment of the present invention, the elastic probe is a spring probe, which has axial compressibility when compressed, thereby ensuring good contact with the test point and avoiding hard damage.

[0026] In one specific embodiment of the present invention, the protective frame 1 is further provided with a foolproof structure, which is matched with the circuit board to ensure the correct insertion direction of the circuit board and external test cables.

[0027] Workflow: At the start of the process, circuit board 4 is installed into protective frame 1, completing the mating with adapter connectors 24 and 25 on adapter connector module 2. Then, signal adapter board 3 is installed on circuit board 4. The position of signal adapter board 3 is finely adjusted by adjusting studs 12 and push blocks 13, and then installed on protective frame 1. After that, at the testing station, the operator installs the test cable connectors onto adapter connectors 21, 22, and 23 on adapter connector module 2 to access all signals on circuit board 4 without touching circuit board 4 again.

[0028] The beneficial effects of this invention are as follows: 1. Integrated physical protection: By equipping each circuit board with a dedicated protective frame, it provides comprehensive physical protection throughout the entire production and testing process, effectively avoiding scratches, bumps, and other damage to the appearance and components.

[0029] 2. Significantly Reduced Insertion and Removal Losses: After the circuit board is installed in this device, it only needs to be inserted into the "internal interface connector" once at the beginning of the production process. In subsequent testing processes, testers only need to insert and remove the "external interface connector" fixed to the protective frame. The number of insertion and removal cycles of the connectors on the Zhejiang circuit board is greatly reduced, fundamentally lowering the risk of damage.

[0030] 3. Secure Access to Test Holes: By integrating a test hole adapter board and flexible probes, the previously scattered test holes that required direct contact with external probes are now uniformly connected to a fixed external interface. This completely eliminates the risk of sharp probes damaging the circuit board and related components, enabling secure and reliable access to test signals.

[0031] 4. Standardized Interface and Convenient Testing: Regardless of the variety of connectors and test holes on the internal circuit board, this device provides a unified and standardized interface. Testers no longer need to replace test cables for different circuit boards, simplifying operation, improving testing efficiency, and eliminating the possibility of mis-insertion.

[0032] 5. Seamless integration throughout the entire process: This device serves as the "accompanying tooling" for the circuit board, moving with it through various processes, achieving seamless integration of protection and testing, convenient management, and suitability for multi-variety and flexible production modes.

[0033] 6. Precise alignment and reliable contact: The innovative fine-tuning mechanism can compensate for tolerances generated during machining and assembly, achieving precise adjustment of the signal adapter board position and ensuring that the elastic probe can accurately contact the test hole on the circuit board, greatly improving the stability and reliability of the test.

[0034] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An integrated device for accompanying protection and testing transfer of board-level products, characterized in that, include: A protective frame (1) is used to support and fix the circuit board (4); An adapter connector module (2) is fixed on the protective frame (1) and is used to convert the built-in connector signal of the circuit board (4) into a standardized external interface; A signal adapter board (3) is fixed inside the protective frame (1) and located above the circuit board (4). It makes electrical contact with the test hole on the circuit board (4) through an elastic probe and leads out the test point signal. The protective frame (1) is provided with a fine-tuning mechanism for fine-tuning the installation position of the signal adapter board (3) relative to the protective frame (1).

2. The apparatus according to claim 1, characterized in that, The protective frame (1) has a cavity (11) inside, and the shape of the cavity (11) matches the circuit board (4).

3. The apparatus according to claim 2, characterized in that, The accommodating cavity (11) is provided with cable lead-out holes and positioning structures around its perimeter or at its bottom.

4. The apparatus according to claim 1, characterized in that, The protective frame (1) is a rigid structure.

5. The apparatus according to claim 1, characterized in that, The fine-tuning mechanism includes an adjusting stud (12) and a push block (13). The adjusting stud (12) provides a pushing force by turning it forward and backward to adjust the position of the push block (13). The push block (13) contacts the support of the signal adapter board (3). The adjusting stud (12) and the push block (13) work together on the signal adapter board (3) to achieve its position fine-tuning.

6. The apparatus according to claim 1, characterized in that, The elastic probe is a spring probe.

7. The apparatus according to claim 1, characterized in that, The adapter connector module (2) is fixed to the protective frame (1) by screws.

8. The apparatus according to claim 1, characterized in that, The adapter connector module (2) includes an external adapter connector, which connects to the fixed connector or wire-spinning connector on the circuit board (4) via a cable, converting the signals of each connector into an external interface for connection with the standard cable of an external test device.

9. The apparatus according to claim 1, characterized in that, The adapter connector module (2) includes an internal adapter connector that communicates with a connector on the circuit board.

10. The apparatus according to claim 1, characterized in that, The protective frame (1) is provided with a foolproof structure that matches the circuit board and is used to ensure the correct insertion direction of the circuit board and external test cables.

Images