General test fixture for circuit board
By designing a universal test fixture for circuit boards and utilizing a combination of conversion modules and test head components, the problem of needing to design a fixture for each model in the existing technology has been solved, achieving efficient and low-cost circuit board testing.
Patent Information
- Application Number
- CN202520247069.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-14
AI Technical Summary
In the existing technology, a test fixture needs to be designed for each circuit board model, which results in high testing costs and is time-consuming and labor-intensive.
Design a universal test fixture for circuit boards, comprising a universal base, a conversion module, and an output module. The conversion module allows for switching test probes and replacing test head components to enable testing of different types of circuit boards.
It enables the testing of different circuit board models without the need for additional fixture design, improving testing efficiency and saving costs.
Smart Images
Figure CN223784443U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to circuit board test field especially relates to a circuit board general test fixture. BACKGROUND
[0002] In the production process of circuit board, it is very important to test the circuit board to judge the quality of the circuit board, and the conventional test method is to design a corresponding test fixture for different models and different sizes of circuit boards, then connect the test fixture to the test equipment, test a model of circuit board, after the same model of circuit board is tested, replace another model of circuit board corresponding test fixture and test head assembly for testing, so each model needs to design a test fixture, which is time-consuming and laborious and has high test cost. UTILITY MODEL CONTENTS
[0003] In order to overcome the above problems, the utility model provides a circuit board general test fixture, and the utility model solves technical problems thereof adopts the technical scheme that:
[0004] A circuit board general test fixture, including the general base that is electrically connected with test equipment, general base is provided with conversion module and output module on, conversion module and output module are electrically connected, test head assembly is detachably fixed on output module, test head assembly and output module are electrically connected.
[0005] Further, the general base is fixedly connected with the test equipment, and the access end of the general base is electrically connected with the test equipment.
[0006] Further, the general test fixture is made of aluminum alloy and FR4 material.
[0007] Further, the output module is provided with a plurality of clamping grooves to clamp the test head assembly.
[0008] Further, the general base is further provided with a plurality of fixing holes, and the fixing holes are arranged around the output module to fix the test head assembly.
[0009] Further, the two general test fixtures are symmetrically arranged above and below to simultaneously test two surfaces of the circuit board.
[0010] The utility model has the advantages of:
[0011] The test fixture comprises a universal base electrically connected with a test device, a conversion module and an output module are arranged on the universal base, the conversion module and the output module are electrically connected, a test head assembly is detachably arranged on the output module, and the test head assembly and the output module are electrically connected; when different models of circuit boards need to be tested, the test needle points on the output module are switched through the conversion module, then only the corresponding test head assembly needs to be replaced, so that different models of circuit boards can be tested, without the need of additionally arranging a fixture, time and labor are saved, and cost is saved. BRIEF DESCRIPTION OF DRAWINGS
[0012] The utility model will be further described below in combination with the drawings and specific embodiments, wherein:
[0013] Figure 1 is the perspective view of the test fixture;
[0014] Figure 2 is the perspective view of the two test fixtures when working.
[0015] Figure number mark:
[0016] 100, universal base; 101, conversion module; 102, output module; 103, test head assembly; 104, fixing hole; 105, test device; 106, circuit board. DETAILED DESCRIPTION
[0017] In order to better understand the purpose, structure and function of the utility model, the specific embodiments of the utility model "a universal test fixture" will be further described in detail below in combination with the drawings.
[0018] Reference Figure 1 In the embodiment, the universal test fixture comprises a universal base 100 electrically connected with a test device 105, a conversion module 101 and an output module 102 are arranged on the universal base 100, the conversion module 101 and the output module 102 are electrically connected, a test head assembly 103 is detachably arranged on the output module 102, and the test head assembly 103 and the output module 102 are electrically connected; when different models of circuit boards 106 need to be tested, the test array points on the output module 102 can be switched through the conversion module 101 to activate the test array points at the corresponding positions, then only the corresponding test head assembly 103 needs to be replaced, so that the test head assembly 103 and the corresponding test array points are electrically connected, and different models of circuit boards 106 can be tested, the test efficiency is improved, and the production cost of manufacturing different molds is saved.
[0019] More specifically, in the embodiment, the universal base 100 is clamped and fixed with the test equipment 105, the access end of the universal base 100 is electrically connected with the test equipment 105, and the universal base 100 is conveniently fixed and disassembled; of course, in other embodiments, the universal base 100 and the test equipment 105 can also be fixed through screws to ensure the stable electrical connection of the universal base 100 and the test equipment 105.
[0020] Further, in the embodiment, the universal test fixture is made of aluminum alloy and FR4 material, the aluminum alloy material has good processing performance, is light in quality, good in stability and low in cost, the FR4 material has good processing performance, insulation, high temperature resistance and low cost; so that the universal fixture has the advantages of low manufacturing cost, small quality and good stability.
[0021] More specifically, in the embodiment, a plurality of clamping grooves are arranged on the output module 102 to clamp different types of test head assemblies 103; meanwhile, a plurality of fixing holes 104 are arranged on the universal base 100, the fixing holes 104 are arranged around the output module 102, and for larger test head assemblies 103, the test head assemblies 103 can also be fixed in the fixing holes 104 through screws to ensure the stable electrical connection of the test head assemblies 103 and the output module 102.
[0022] Further referring to Figure 2 In the embodiment, the universal test fixture is usually arranged, and the two universal test fixtures are symmetrically arranged upward and downward, and the circuit board 106 is located between the universal test fixtures, so that both sides of the circuit board 106 can be detected at the same time, and the test efficiency is improved.
[0023] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and range of the utility model.In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and range of the utility model.Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the range protected by the utility model.
[0024] In the description of the utility model, it is necessary to explain, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as the limitation of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
Claims
1. A universal test fixture for circuit boards, characterized in that, The device includes a universal base (100) electrically connected to a test device (105), on which a conversion module (101) and an output module (102) are provided. The conversion module (101) and the output module (102) are electrically connected. A test head assembly (103) is detachably fixed on the output module (102), and the test head assembly (103) and the output module (102) are electrically connected.
2. The universal test fixture for circuit boards according to claim 1, characterized in that, The universal base (100) is snapped and fixed to the test equipment (105), and the access end of the universal base (100) is electrically connected to the test equipment (105).
3. The universal test fixture for circuit boards according to claim 1, characterized in that, The universal test fixture is made of aluminum alloy and FR4 material.
4. A universal test fixture for circuit boards according to claim 1, characterized in that, The output module (102) is provided with several slots to engage the test head assembly (103).
5. A universal test fixture for circuit boards according to claim 4, characterized in that, The universal base (100) is also provided with a plurality of fixing holes (104), which are arranged around the output module (102) to fix the test head assembly (103).
6. A universal test fixture for circuit boards according to claim 1, characterized in that, The two general-purpose test fixtures are arranged symmetrically to test both sides of the circuit board (106) simultaneously.