Short circuit test bench for testing

Abstract

The utility model discloses a short circuit test bench for testing, which comprises a base for placing a test article, the left and right sides of the edge of the upper end face of the base are respectively provided with a contact arm adjusting assembly, and each contact arm adjusting assembly comprises an arm rod I rotationally connected to the upper end face of the base; the upper end of the first arm rod is connected with the rear end of the second arm rod through a second rotating connecting piece, the front end of the second arm rod is connected with the rear end of the third arm rod through a third rotating connecting piece, a fourth arm rod is connected to the front end of the third arm rod in an inserted mode, and the front end of the fourth arm rod is connected with the rear end of the fifth arm rod through a fourth rotating connecting piece. The front end of the fifth arm rod is connected with a contact arm in an inserted mode, the front end of the contact arm is provided with a metal contact pin, the metal contact pin is connected with a cable, and the other end of the cable extends into the base. The short circuit test bench can perform physical short circuit on the two connection points on the circuit board, and has the advantages of being convenient and safe to operate and high in adjustability.

Description

Technical Field

[0001] This utility model relates to the technical field of short-circuit testing, and more specifically, to a short-circuit test bench for testing. Background Technology

[0002] Circuit boards are an important component of electronic devices and are widely used in various fields. For example, circuit boards are the core of mobile phones, carrying important functions such as processors, memory, display drivers, and battery management. Circuit boards in televisions are responsible for image processing, sound output, and signal reception. Computer motherboards, graphics cards, hard drives, and other components all rely on circuit boards. They connect various hardware devices and realize data processing, storage, and display, etc. In applications such as troubleshooting circuit board faults, it is necessary to physically short-circuit two connection points on the circuit board and perform corresponding tests. A common method is to directly press a wire onto the two connection points on the circuit board. However, during the test, there are safety hazards such as overheating of the wire and burns, and electric sparks. Utility Model Content

[0003] In view of the above-mentioned technical problems in related technologies, this utility model provides a short-circuit test bench for testing, which can solve the above problems.

[0004] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:

[0005] A short-circuit test bench includes a base for placing a test sample. A contact arm adjustment assembly is provided on the left and right sides of the upper edge of the base. Each contact arm adjustment assembly includes an arm rotatably connected to the upper edge of the base. The upper end of the arm rotatably connects to the rear end of the arm rotatably connected to the upper edge of the base. The front end of the arm rotatably connects to the rear end of the arm rotatably connected to ...

[0006] Furthermore, the first arm is vertically disposed at the upper end of the base, and the first arm is connected to the upper end of the base through a rotating connector.

[0007] Furthermore, the first arm, the second arm, the third arm, the fourth arm, the fifth arm, and the contact arm are all hollow structures. The third arm is provided with a telescopic cavity one that is adapted to the fourth arm, and the fifth arm is provided with a telescopic cavity two that is adapted to the contact arm.

[0008] Furthermore, a short-circuit button is provided at one corner of the upper surface of the base, and two metal contact plates with gaps are provided at the lower part of the short-circuit button.

[0009] Furthermore, the outer shell of the short-circuit button, the base, the contact arm, the fifth arm, the fourth arm, the third arm, the second arm, and the first arm are all made of non-conductive plastic material.

[0010] Furthermore, one end of the cable is connected to the metal contact pin, and the other end passes sequentially through the cavity of the contact arm, the cavity of arm five, the cavity of arm four, the cavity of arm three, the cavity of arm two, and the cavity of arm one and extends into the base. The cables extending from the two contact arm adjustment assemblies are respectively connected to the two metal contact plates.

[0011] The beneficial effects of this utility model are: the short-circuit test bench of this application can physically short-circuit two connection points on the circuit board, and has the advantages of convenient operation, safety and strong adjustability. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] The present invention will now be described in further detail with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the structure of a short-circuit test bench for testing, as described in an embodiment of this utility model.

[0015] In the picture:

[0016] 10. Base; 20. Contact arm adjustment assembly; 30. Short circuit button; 21. Rotary connector one; 22. Arm one; 23. Rotary connector two; 24. Arm two; 25. Rotary connector three; 26. Arm three; 27. Arm four; 28. Rotary connector four; 29. ​​Arm five; 210. Contact arm. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0018] like Figure 1As shown, this utility model discloses a short-circuit test bench, including a base 10 for placing test samples. A contact arm adjustment assembly 20 is provided on the left and right sides of the upper edge of the base 10. Each contact arm adjustment assembly 20 includes an arm 22 rotatably connected to the upper edge of the base 10. The upper end of the arm 22 is connected to the rear end of the arm 24 via a rotating connector 23. The front end of the arm 24 is connected to the rear end of the arm 26 via a rotating connector 25. An arm 27 is inserted into the front end of the arm 26. The front end of the arm 27 is connected to the rear end of the arm 29 via a rotating connector 28. A contact arm 210 is inserted into the front end of the arm 29. A metal contact pin is provided at the front end of the contact arm 210, and a cable is connected to the metal contact pin. The other end of the cable extends into the base 10.

[0019] Example:

[0020] In this application, the contact arm adjustment assembly 20 has the functions of extension and angle adjustment. The first arm 22 can be rotated and its angle adjusted by rotating connector 21, the second arm 24 can be rotated and its angle adjusted by rotating connector 23, the third arm 26 can be rotated and its angle adjusted by rotating connector 35, and the fifth arm 29 can be rotated and its angle adjusted by rotating connector 48. The first rotating connector 21 can be a bearing structure. The second rotating connector 23, the third rotating connector 25, and the fourth rotating connector 28 can all be two circular plates with a rotating groove on the inner side of the circular plate. The rotating block on the arm is rotatably connected to the rotating groove. In addition, the fourth arm 27 can extend and retract in the first extension cavity of the third arm 26, and the contact arm 210 can extend and retract in the second extension cavity of the fifth arm 29. Furthermore, the inner wall of the extension cavity is provided with a damping plate so that the fourth arm 27 and the contact arm 210 can maintain their current state after being adjusted to a certain length.

[0021] In practical use, the circuit board is placed on the upper surface of the base 10 and the corresponding test wiring is made. The arm 29 is held and operated so that the metal contact pin at the front end of the contact arm 210 contacts the two connection points on the circuit board that need to be physically short-circuited. Then the short-circuit button 30 is pressed (the short-circuit button 30 fills the gap between the two metal contact plates or overlaps the two metal contact plates), thereby realizing the physical short circuit of the two contact points. After testing a set of connection points, the arm in the contact arm adjustment assembly 20 can be rotated and extended to test the connection points of different position groups in sequence.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A short-circuit test bench for testing, characterized in that, The device includes a base (10) for placing test specimens. A touch arm adjustment assembly (20) is provided on the left and right sides of the upper edge of the base (10). The touch arm adjustment assembly (20) includes an arm (22) rotatably connected to the upper edge of the base (10). The upper end of the arm (22) is connected to the rear end of the arm (24) via a rotating connector (23). The front end of the arm (24) is connected to the rear end of the arm (3) via a rotating connector (25). An arm (27) is inserted into the front end of the arm (3) via a rotating connector (28). The front end of the arm (27) is connected to the rear end of the arm (5) via a rotating connector (28). A contact arm (210) is inserted into the front end of the contact arm (210). A metal contact needle is provided at the front end of the contact arm (210). The metal contact needle is connected to a cable, and the other end of the cable extends into the base (10).

2. The short-circuit test bench according to claim 1, characterized in that, The first arm (22) is vertically disposed at the upper end of the base (10), and the first arm (22) is connected to the upper end of the base (10) through a rotating connector (21).

3. A short-circuit test bench for testing according to claim 1, characterized in that, The first arm (22), the second arm (24), the third arm (26), the fourth arm (27), the fifth arm (29), and the contact arm (210) are all hollow structures. The third arm (26) is provided with a telescopic cavity one that is adapted to the fourth arm (27), and the fifth arm (29) is provided with a telescopic cavity two that is adapted to the contact arm (210).

4. A short-circuit test bench for testing according to claim 3, characterized in that, A short-circuit button (30) is provided at one corner of the upper surface of the base (10), and two metal contact plates with gaps are provided at the lower part of the short-circuit button (30).

5. A short-circuit test bench for testing according to claim 4, characterized in that, The outer shell of the short-circuit button (30), the base (10), the contact arm (210), the fifth arm (29), the fourth arm (27), the third arm (26), the second arm (24), and the first arm (22) are all made of non-conductive plastic material.

6. A short-circuit test bench according to claim 5, characterized in that, One end of the cable is connected to the metal contact pin, and the other end passes through the cavity of the contact arm (210), the cavity of the fifth arm (29), the cavity of the fourth arm (27), the cavity of the third arm (26), the cavity of the second arm (24), and the cavity of the first arm (22) in sequence and extends into the base (10). The cables extending from the two contact arm adjustment assemblies (20) are respectively connected to the two metal contact plates.

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