CN219016359U

CN219016359U - Adapter plate for functional test jig

Info

Publication number: CN219016359U
Application number: CN202123070430.5U
Authority: CN
Inventors: 单鸿宇
Original assignee: Suzhou Aotemei Automation Technology Co ltd
Current assignee: Suzhou Aotemei Automation Technology Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2023-05-12
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses an adapter plate for a functional test fixture, which comprises a PCB adapter plate, wherein a plurality of groups of pinholes and standby needle points of test needles are arranged on the PCB adapter plate, the pinholes and the standby needle points of the test needles are respectively provided with a reserved hole and a standby reserved hole, the reserved holes and the standby reserved holes are not provided with plating layers, a bonding pad is arranged at the edges of the reserved holes and the standby reserved holes, and the bonding pad is arranged in a slender shape and is convenient to weld; the PCB adapter board is integrated with functional circuits, so that most wiring can be saved, and the utility model integrates some used functional circuits while realizing the needle point switching function, optimizes and simplifies wiring; holes without plating layers are reserved at positions of corresponding pinholes of the DUTs, and a strip-shaped PAD is reserved at each hole edge for welding; the utility model has low cost, simple wiring, convenient maintenance and easy realization.

Description

Adapter plate for functional test jig

Technical Field

The utility model relates to the technical field of adapter plates, in particular to an adapter plate for a functional test fixture.

Background

In a functional test system, problems with the DUT communicating with the test equipment may be involved. The communication modes generally include the following:

1. inserting the DUT with a connector and then leading to test equipment;

2. the test needle is propped against a test needle point of the DUT, and then is led out to test equipment in a mode of welding wires at the needle sleeve end;

3. and a special adapter plate is designed by adopting the double-head needle, and test points on the DUT are led out to test equipment through the double-head needle and the adapter plate.

The manner in which the DUT communicates with the test equipment for the three items described above has several disadvantages:

1. the 1 st and 2 nd items are more in wiring in the implementation process, are easy to make mistakes, and are not beneficial to debugging and later maintenance of equipment;

2. the cost of implementation in the 3 rd step is relatively high, and the design requirement on the adapter plate is relatively high (longer time is needed to consider the design, errors are easy to occur and the adapter plate is not improved well after errors), so we propose an adapter plate for a functional test fixture.

Disclosure of Invention

The utility model aims to provide an adapter plate for a functional test fixture, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the pinboard for the functional test fixture comprises a PCB pinboard, wherein a plurality of groups of pinholes and standby needle points of test needles are arranged on the PCB pinboard, the pinholes and the standby needle points of the test needles are respectively provided with a reserved hole and a standby reserved hole, the reserved holes and the standby reserved holes are not provided with plating layers, a bonding pad is arranged at the edges of the reserved holes and the standby reserved holes, and the bonding pad is in a slender shape and is convenient to weld; the PCB adapter plate is integrated with functional circuits, so that most wiring can be saved;

under the condition of few test needle points, the PCBA can be conveniently taken down from the back of the needle plate for maintenance. In addition, if components on the PCBA are in a patch mode and enough space is reserved, if the components on the PCBA need to be replaced, the components can be directly replaced without taking the PCBA off the needle plate;

if there is a PCB design error or a subsequent additional test requirement of the functional test project, the reserved pin hole and the test pin sleeve extend out of the PCB for welding, so that the PCB is not required to be additionally designed, the purpose can be achieved by directly welding wires on the exposed pin sleeve, and the problem can be solved in a short time.

The utility model makes a little improvement on the functional test adapter board with relatively few DUT test pins (30 pins or less): 1. the DUT test pins and the spare pins which need to be used are selected according to the functional test requirements. 2. And defining the shape of the PCB adapter plate to be designed and the opening (namely the reserved hole) of the test pin point by using a CAD file.

Compared with the prior art, the utility model has the beneficial effects that: the utility model integrates some used functional circuits while realizing the needle point switching function, optimizes and simplifies wiring; holes without plating layers (namely reserved holes and reserved holes) are reserved at positions of corresponding pinholes of each DUT, and a strip-shaped PAD (namely bonding PAD) is reserved at each hole edge for welding; the utility model has low cost, simple wiring, convenient maintenance and easy realization.

Drawings

FIG. 1 is a schematic view of a PCB adapter structure of the present utility model;

fig. 2 is a circuit diagram of the functional circuit of the present utility model.

In the figure: 1. a preformed hole; 2. a bonding pad; 3. a PCB adapter plate; 4. a fixing hole; 5. a round hole; 6. a switch; 7. a CNT connector; 8. reserve the reserved hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, the present utility model provides a technical solution: the pinboard for the functional test fixture comprises a PCB pinboard 3, wherein a plurality of groups of pinholes and standby needle points of test needles are arranged on the PCB pinboard 3, the pinholes and the standby needle points of the test needles are respectively provided with a reserved hole 1 and a standby reserved hole 8, the reserved holes 1 and the standby reserved holes 8 are not provided with plating layers, a bonding pad 2 is arranged on the edges of the reserved holes 1 and the standby reserved holes 8, and the bonding pad 2 is in a slender shape and is convenient to weld;

the PCB adapter board 3 is integrated with functional circuits, so that most of the wiring is omitted, and the circuit diagram of the functional circuits is shown in fig. 2.

The side edges and the middle part of the PCB adapter plate 3 are provided with fixing holes 4. And a round hole 5 is also formed in the PCB adapter plate 3. The PCB adapter plate 3 is also provided with a CNT connector 7 and a plurality of groups of switches 6.

Printed Circuit Board Assembly, printed circuit board assembly;

DUT Device Under Test, device under test;

FCT, function-circulation testing, functional test.

In particular, when in use, the utility model makes a little improvement on the functional test adapter board with relatively few (30 pins or less) DUT test pins:

1. the DUT test pins and the spare pins which need to be used are selected according to the functional test requirements.

2. The CAD file is used for defining the shape of the PCB adapter plate 3 to be designed and the opening of the test pin point (namely the reserved hole 1).

The function of switching the needle point is realized, and meanwhile, some used functional circuits are integrated, so that the wiring is optimized and simplified;

holes without plating layers (namely a reserved hole 1 and a reserved hole 8) are reserved at positions of corresponding pinholes of each DUT, and a strip-shaped PAD (namely a bonding PAD 2) is reserved at each hole edge for welding;

The utility model has low cost, simple wiring, convenient maintenance and easy realization.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a functional test adapter board for tool, includes PCB adapter board (3), its characterized in that: the PCB adapter plate (3) is provided with a plurality of groups of pinholes and standby pinpoints of the test pins, the pinholes and the standby pinpoints of the test pins are respectively provided with a preformed hole (1) and a standby preformed hole (8), the preformed holes (1) and the standby preformed holes (8) are not provided with plating layers, one bonding pad (2) is arranged on the edges of the preformed holes (1) and the standby preformed holes (8), the bonding pad (2) is arranged in a slender mode, and functional circuits are integrated on the PCB adapter plate (3).

2. The adapter plate for a functional test fixture according to claim 1, wherein: the side edges and the middle of the PCB adapter plate (3) are provided with fixing holes (4).

3. The adapter plate for a functional test fixture according to claim 1, wherein: and a round hole (5) is also formed in the PCB adapter plate (3).

4. The adapter plate for a functional test fixture according to claim 1, wherein: and the PCB adapter plate (3) is also provided with a CNT connector (7) and a plurality of groups of switches (6).