Power connection reliability measuring instrument

Abstract

The utility model relates to the technical field of measuring instruments, and discloses a power connection reliability measuring instrument, which comprises a mounting plate, a conductive column and a microohmmeter, and is characterized in that two workpieces to be tested are placed on a test platform; the mounting plate is horizontally arranged, a plurality of limiting blocks extending downwards are arranged on the peripheral edge of the mounting plate, and the limiting blocks abut against the test platform and / or two workpieces on the test platform, so that the mounting plate is suspended relative to the test platform; the two conductive columns are mounted on the mounting plate and extend downwards, and the two conductive columns are correspondingly connected with the positive electrode and the negative electrode of the microohm meter; in a test state, the two conductive columns are in one-to-one correspondence contact with the two workpieces to be tested, and the measured resistance value of the microohm meter is used as a quantized value of the power connection condition of the two workpieces. The power connection reliability measuring instrument is simple in structure, low in cost, convenient to use and high in measuring speed, and meets the use requirements.

Description

Technical Field

[0001] This utility model relates to the field of measuring instrument technology, and in particular to a power connection reliability measuring instrument. Background Technology

[0002] In the process of new product design, it is necessary to test the electrical connection of two electrically connected components. Conventional testing methods require placing the two components in actual or simulated operating conditions, which is cumbersome; alternatively, specific precision instruments are used for conductivity measurement, resulting in high equipment costs. Therefore, it is desirable to design a low-cost and easy-to-use testing device that meets the requirements for measuring electrical connection reliability. Utility Model Content

[0003] The purpose of this utility model is to provide a power connection reliability measuring instrument to solve the problems in the background art and meet the usage requirements.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A power connection reliability measuring instrument is used to test the power connection of two workpieces. The instrument includes a mounting plate, conductive posts, and a micro-ohmmeter, wherein:

[0006] The two workpieces to be tested are placed on the test platform;

[0007] The mounting plate is arranged horizontally, and several downward-extending limiting blocks are provided around the four edges of the mounting plate. The limiting blocks abut against the test platform and / or two workpieces on the test platform, so that the mounting plate is suspended relative to the test platform.

[0008] Two conductive posts are mounted on the mounting plate and extend downwards, and the two conductive posts are connected to the positive and negative terminals of the micro-ohmmeter respectively;

[0009] In the test state, the two conductive posts are in contact with the two workpieces to be tested one by one, and the resistance value measured by the micro-ohmmeter is used as a quantitative value of the electrical connection status of the two workpieces.

[0010] As an alternative, the limiting block abuts against the side or end face of the workpiece to be tested, thus confining the workpiece directly below the mounting plate.

[0011] As an alternative, the limiting block is pressed against the workpiece to be tested, and the limiting block is provided with concave and convex parts that are adapted to the surface shape of the workpiece.

[0012] As an alternative, the conductive post is threaded to the mounting plate, making the distance between the contact head of the conductive post and the surface of the workpiece adjustable.

[0013] As an alternative, the mounting plate has an upward-extending panel, with a micro-ohmmeter mounted on the back of the panel and a display screen on the front of the panel for displaying the measured resistance value.

[0014] As an optional solution, the mounting plate is equipped with multiple conductive posts and multiple micro-ohms, with two conductive posts corresponding to each micro-ohmmeter.

[0015] The beneficial effects of this utility model are:

[0016] Based on the principle that the resistance is relatively small when two workpieces are reliably connected and relatively large when they are loosely connected, this electrical connection reliability measuring instrument uses a micro-ohmmeter to measure the resistance value between two workpieces, which directly reflects the electrical connection reliability of the two workpieces. Furthermore, the electrical connection status can be further quantified based on the measured resistance value. This electrical connection reliability measuring instrument has a simple structure, low cost, is easy to use, and has a fast measurement speed, meeting the usage requirements. Attached Figure Description

[0017] Figure 1 This is a front view of the power connection reliability measuring instrument provided in this embodiment of the utility model;

[0018] Figure 2 This is a side view of the power connection reliability measuring instrument provided in this embodiment of the utility model.

[0019] In the attached image:

[0020] 1. Mounting plate; 2. Conductive post; 3. Micro-ohmmeter; 4. Limiting block; 41. Concave and convex parts; 5. Panel; 6. Display screen. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0022] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.

[0026] Please see Figure 1 and Figure 2 As shown, this embodiment provides a power connection reliability measuring instrument for testing the power connection of two workpieces. The instrument includes a mounting plate 1, conductive posts 2, and a micro-ohmmeter 3, wherein:

[0027] The two workpieces to be tested are placed on the test platform;

[0028] Mounting plate 1 is arranged horizontally, and several downwardly extending limiting blocks 4 are provided on the four periphery of mounting plate 1. The limiting blocks 4 abut against the test platform and / or two workpieces on the test platform, so that mounting plate 1 is suspended relative to the test platform.

[0029] Two conductive posts 2 are mounted on the mounting plate 1 and extend downwards. The two conductive posts 2 are connected to the positive and negative terminals of the micro-ohmmeter 3 respectively.

[0030] In the test state, the two conductive posts 2 are in contact with the two workpieces to be tested one by one, and the resistance value measured by the micro-ohmmeter 3 is used as the quantitative value of the electrical connection status of the two workpieces.

[0031] Based on the principle that the resistance is relatively small when two workpieces are reliably connected and relatively large when they are loosely connected, this electrical connection reliability measuring instrument uses a micro-ohmmeter 3 to measure the resistance value between two workpieces to intuitively reflect the electrical connection reliability of the two workpieces. Furthermore, the electrical connection status can be further quantified based on the measured resistance value.

[0032] Therefore, this power connection reliability measuring instrument has a simple structure, low cost, convenient use, and fast measurement speed, which meets the usage requirements.

[0033] Optionally, the limiting block 4 abuts against the side or end face of the workpiece to be tested, so that the workpiece is restricted directly below the mounting plate 1, and the gap between adjacent limiting blocks 4 is designed according to the workpiece size so that the power connection reliability measuring instrument cover can be fastened on the workpiece.

[0034] Alternatively, the limiting block 4 is pressed against the workpiece to be tested. The limiting block 4 is provided with concave and convex parts 41 that are adapted to the surface shape of the workpiece, so as to press the power connection reliability measuring instrument onto the workpiece and lock the limiting block 4 to ensure reliable contact between the conductive post 2 and the workpiece.

[0035] Optionally, the conductive post 2 is threadedly connected to the mounting plate 1, so that the distance between the contact head of the conductive post 2 and the surface of the workpiece is adjustable to accommodate workpieces of different thicknesses or some workpieces with complex surface shapes.

[0036] Optionally, the mounting plate 1 has an upwardly extending panel 5, the micro-ohmmeter 3 is mounted on the back of the panel 5, and the front of the panel 5 has a display screen 6 for displaying the measured resistance value. For example, when the two workpieces are normally connected to the power supply, the display screen 6 displays a single value or a value fluctuating within a small range; when the displayed value is abnormally large, it indicates that the connection of the two workpieces is abnormal and needs to be checked.

[0037] Optionally, the mounting plate 1 is provided with multiple conductive posts 2 and multiple micro-ohmmeters 3, with one micro-ohmmeter 3 corresponding to two conductive posts 2, so as to test multiple pairs of workpieces simultaneously.

[0038] When using it, first zero the micro-ohmmeter 3; then place the two workpieces in a certain posture on the test platform, and the workpiece placement area can be marked on the test platform; then place the power connection reliability measuring instrument on the workpieces on the test platform, ensuring that the two conductive posts 2 are in contact with the two workpieces one by one; read the measured resistance value on the display screen 6, and judge the power connection between the two workpieces based on the displayed value.

[0039] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A power connection reliability measuring instrument, used to test the power connection of two workpieces, characterized in that, The power connection reliability measuring instrument includes a mounting plate (1), a conductive post (2), and a micro-ohmmeter (3), wherein: The two workpieces to be tested are placed on the test platform; The mounting plate (1) is arranged horizontally, and several downwardly extending limiting blocks (4) are provided on the four periphery of the mounting plate (1). The limiting blocks (4) abut against the test platform and / or two workpieces on the test platform, so that the mounting plate (1) is suspended relative to the test platform. The two conductive posts (2) are mounted on the mounting plate (1) and extend downwards, and the two conductive posts (2) are connected to the positive and negative terminals of the micro-ohmmeter (3) respectively; In the test state, the two conductive pillars (2) are in contact with the two workpieces to be tested one by one, and the resistance value measured by the micro-ohmmeter (3) is used as the quantitative value of the electrical connection status of the two workpieces.

2. The power connection reliability measuring instrument according to claim 1, characterized in that, The limiting block (4) abuts against the side or end face of the workpiece to be tested, thereby restricting the workpiece directly below the mounting plate (1).

3. The power connection reliability measuring instrument according to claim 1, characterized in that, The limiting block (4) presses against the workpiece to be tested, and the limiting block (4) is provided with concave and convex parts (41) that are adapted to the surface shape of the workpiece.

4. The power connection reliability measuring instrument according to claim 2 or 3, characterized in that, The conductive post (2) is threadedly connected to the mounting plate (1), so that the distance between the contact head of the conductive post (2) and the surface of the workpiece is adjustable.

5. The power connection reliability measuring instrument according to claim 1, characterized in that, The mounting plate (1) is provided with an upwardly extending panel (5), the micro ohmmeter (3) is mounted on the back of the panel (5), and the front of the panel (5) is provided with a display screen (6) for displaying the measured resistance value.

6. The power connection reliability measuring instrument according to claim 1, characterized in that, The mounting plate (1) is provided with a plurality of conductive posts (2) and a plurality of micro-ohms (3), and one micro-ohmmeter (3) is provided with two conductive posts (2) respectively.

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