Direct-current low-resistance testing device

Abstract

The utility model provides a DC low resistance testing device, which comprises a first box body and a second box body, the top of the first box body is provided with a resistance meter, the first box body comprises a control box, the bottom of the second box body is provided with a bottom plate, the second box body comprises a protective cover, the upper surface of the bottom plate is provided with a rib plate, and the rib plate is provided with a groove. A fixing plate is arranged on the surface of the rib plate, a transmission mechanism is arranged on the surface of the side, away from the rib plate, of the fixing plate, a displacement module is arranged on the transmission mechanism, a gold-plated brass block is arranged on the surface of the displacement module, and a gold-plated binding post is arranged at one end of the gold-plated brass block. By arranging the servo motor, the coupler and the lead screw module, the resistance condition in the actual application process is reflected, and by arranging the adjusting handle, the locking screw, the gold-plated brass block and the two displacement modules, the functionality of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of resistance testing, in particular to a direct current low resistance testing device. Background Art

[0002] The existing DC low resistance tester can only perform tests under static conditions, and cannot reflect the resistance status of conductive materials (conductive cloth, conductive copper, aluminum foil, gold-plated PI, etc.) during actual application. There are some defects. When processing materials, it is impossible to understand the resistance value change differences of materials in detail, which makes it impossible for engineering designers to obtain accurate material resistance data and match the most economical and affordable product materials for customers. It often happens that the resistance value does not meet the requirements during application and the materials need to be re-matched. Therefore, a DC low resistance test device with dynamic testing function is needed, and the existing DC low resistance test device has a simple structure and poor functionality. Utility Model Content

[0003] The problem that the utility model aims to solve is the problem that the resistance condition in the actual application process cannot be reflected and the functionality is poor.

[0004] In order to solve the above technical problems, the utility model provides a DC low resistance testing device, including a first box and a second box, a resistor is arranged on the top of the first box, the first box includes a control box, a bottom plate is arranged on the bottom of the second box, the second box includes a protective cover, a rib is arranged on the upper surface of the bottom plate, a fixed plate is arranged on the surface of the rib, a transmission mechanism is arranged on the surface of the fixed plate, a displacement module is arranged on the transmission mechanism, a gold-plated brass block is arranged on the surface of the displacement module, a gold-plated terminal is arranged at one end of the gold-plated brass block, a test material is arranged on the surface of the gold-plated brass block, a test window is opened on the surface of the second box, and the gold-plated terminal is electrically connected to the resistor through a wire.

[0005] Preferably, the transmission mechanism includes a servo motor, a coupling and a screw module, the bottom of the screw module is arranged on the upper surface of the base plate, the top of the screw module is provided with a coupling, the output end of the servo motor is connected to the top of the coupling, and the displacement module is arranged on the surface of the screw module on the side of the fixed plate away from the rib plate.

[0006] Preferably, the number of the displacement modules is two and they are symmetrically arranged on the surface of the screw module, a locking screw is threadedly connected to the surface of one side of the gold-plated brass block, an adjustment handle is provided at one end of the two displacement modules, and a bakelite board is provided between the displacement module and the gold-plated brass block.

[0007] Preferably, a proximity switch electrically connected to the servo motor is provided on one side of the screw module.

[0008] Preferably, the number of the proximity switches is three and they are equidistant from each other.

[0009] Preferably, foot cups are provided at the four corners of the bottom of the base plate.

[0010] Preferably, an operation screen is provided on the surface of the first box.

[0011] Preferably, a surface of the gold-plated brass block away from the displacement module is provided with a plurality of threaded holes, and the threaded holes are used for installing and fixing the test material.

[0012] Compared with the prior art, the utility model provides a DC low resistance test device, which has the following beneficial effects:

[0013] 1. The utility model sets a servo motor, a coupling and a screw module. The servo motor drives the coupling to rotate, the coupling drives the screw module to move, and the screw module drives the displacement module to move, thereby realizing a DC low resistance test under a dynamic state, thereby reflecting the resistance condition in the actual application process.

[0014] 2. The utility model provides an adjustment handle, a locking screw, a gold-plated brass block and two displacement modules. The adjustment handle is moved to drive the gold-plated brass block to move on the surface of the displacement module, thereby changing the distance between the two gold-plated brass blocks, so that test materials of different sizes can be installed and fixed on the two displacement modules, thereby improving the functionality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a front schematic diagram of the main structure of the utility model;

[0017] Figure 3 It is a front view schematic diagram of the transmission mechanism structure of the utility model;

[0018] Figure 4 It is a side schematic diagram of the transmission mechanism structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the top structure of the displacement module structure of the utility model;

[0020] Figure 6 It is a schematic diagram of the displacement module structure of the utility model.

[0021] In the figure: 1. first box; 2. second box; 3. resistance meter; 4. bottom plate; 5. rib plate; 6. fixing plate; 7. displacement module; 8. gold-plated brass block; 9. gold-plated terminal; 10. test material; 11. test window; 12. wire; 13. transmission mechanism; 130. servo motor; 131. coupling; 132. screw module; 14. locking screw; 15. adjustment handle; 16. bakelite board; 17. proximity switch; 18. foot cup; 19. operation screen; 20. threaded hole. DETAILED DESCRIPTION

[0022] The utility model relates to a DC low resistance testing device, such as Figure 1-6 As shown, it includes a first box body 1 and a second box body 2, a resistor 3 is arranged on the top of the first box body 1, the first box body 1 includes a control box, a bottom plate 4 is arranged on the bottom of the second box body 2, the second box body 2 includes a protective cover, a rib plate 5 is arranged on the upper surface of the bottom plate 4, a fixing plate 6 is arranged on the surface of the rib plate 5, a transmission mechanism 13 is arranged on the surface of the fixing plate 6, a displacement module 7 is arranged on the transmission mechanism 13, a gold-plated brass block 8 is arranged on the surface of the displacement module 7, a gold-plated terminal 9 is arranged at one end of the gold-plated brass block 8, a test material 10 is arranged on the surface of the gold-plated brass block 8, a test window 11 is opened on the surface of the second box body 2, the gold-plated terminal 9 is electrically connected to the resistor 3 through a wire 12, and the transmission mechanism 13 and the displacement module 7 are arranged, and the displacement module 7 is driven to move by the transmission mechanism 13. The displacement module 7 drives the gold-plated brass block 8 to move, and the gold-plated brass block 8 drives the test material 10 to move, so that the test material 10 is constantly moving, so that the test material 10 is subjected to a DC low resistance test under a dynamic condition, so as to reflect the resistance condition of the conductive material in the actual application process. By setting the rib plate 5 and the fixing plate 6, the bottom of the rib plate 5 is fixedly mounted on the surface of the bottom plate 4, the fixing plate 6 is fixedly mounted on the surface of the rib plate 5, and the transmission mechanism 13 is fixedly mounted on the surface of the fixing plate 6. By setting the gold-plated brass block 8 and the gold-plated terminal 9, the test material 10 is electrically connected to the test wire 12 through the gold-plated brass block 8 and the gold-plated terminal 9. By setting the test window 11, the test material 10 extends into the interior of the protective cover and is installed with the gold-plated brass block 8, so that the transmission mechanism 13 is covered inside the protective cover, thereby improving the safety of the transmission mechanism 13.

[0023] In an embodiment of the utility model, the transmission mechanism 13 includes a servo motor 130, a coupling 131 and a screw module 132. The bottom of the screw module 132 is arranged on the upper surface of the base plate 4, and the top of the screw module 132 is provided with a coupling 131. The output end of the servo motor 130 is connected to the top of the coupling 131. The displacement module 7 is arranged on the surface of the screw module 132 on the side of the fixed plate 6 away from the rib plate 5. By arranging the servo motor 130, the coupling 131 and the screw module 132, the servo motor 130 drives the coupling 131 to rotate, the coupling 131 drives the screw module 132 to move, and the screw module 132 drives the displacement module 7 to move.

[0024] In the embodiment of the utility model, the number of displacement modules 7 is two and they are symmetrically arranged on the surface of the screw module 132, a locking screw 14 is threadedly connected to the surface of one side of the gold-plated brass block 8, an adjusting handle 15 is arranged at one end of the two displacement modules 7, and a bakelite board 16 is arranged between the displacement module 7 and the gold-plated brass block 8. By arranging the locking screw 14 and rotating one end of the locking screw 14, the surface of the locking screw 14 rotates inside the gold-plated brass block 8, so that the other end of the locking screw 14 abuts against the displacement module 7, so that the gold-plated brass block 8 is fixed by the locking screw 14 and the displacement module 7, and by arranging the symmetrically arranged screw module 132 and the adjusting handle 15, the gold-plated brass block 8 is driven to move by moving the adjusting handle 15, thereby changing the distance between the two gold-plated brass blocks 8, so as to facilitate the installation of test materials 10 of different sizes, and by arranging the bakelite board 16, the displacement module 7 and the bakelite board 16 are separated from each other, so that the displacement module 7 and the bakelite board 16 are insulated.

[0025] In an embodiment of the utility model, a proximity switch 17 electrically connected to the servo motor 130 is provided on one side of the screw module 132. By providing the proximity switch 17, the proximity switch 17 and the servo motor 130 are electrically connected. When the displacement module 7 triggers the proximity switch 17, the servo motor 130 is triggered, thereby controlling the movement state of the displacement module 7.

[0026] In the embodiment of the present invention, the number of the proximity switches 17 is three and they are spaced equidistantly from each other.

[0027] In the embodiment of the utility model, foot cups 18 are provided at the four corners of the bottom of the bottom plate 4. By providing the foot cups 18, the stability between the bottom of the bottom plate 4 and the ground is improved.

[0028] In the embodiment of the utility model, an operation screen 19 is provided on the surface of the first box body 1. By providing the operation screen 19, the operation screen 19 is electrically connected to the resistance meter 3 and the servo motor 130, so as to control and set the resistance meter 3 and the servo motor 130.

[0029] In the embodiment of the utility model, a plurality of threaded holes 20 are provided on the surface of the gold-plated brass block 8 away from the displacement module 7. The threaded holes 20 are used to install and fix the test material 10. By setting the threaded holes 20 and using a fixing tool and the threaded holes 20 to be threadedly connected, the test material 10 is fixed to the surface of the gold-plated brass block 8.

[0030] When in use, first, install the test material 10, move the adjustment handle 15, so that the adjustment handle 15 drives the gold-plated brass block 8 to move on the displacement module 7, so that the distance between the two gold-plated brass blocks 8 can be installed at both ends of the test material 10, and then use the fixing tool and the threaded hole 20 to thread the test material 10 to fix the surface of the two gold-plated brass blocks 8, and make the test material 10 and the surface of the gold-plated brass block 8 fit closely, and then rotate the locking screw 14 so that the end of the locking screw 14 located inside the gold-plated brass block 8 and the displacement module 7 The surface of the test material 10 is abutted to fix the gold-plated brass block 8 and the displacement module 7, and the gold-plated terminal 9 and the resistor 3 are respectively connected to the two ends of the wire 12. The test is started, and the servo motor 130 is started through the operation screen 19. The servo motor 130 drives the coupling 131 to rotate, and the coupling 131 drives the screw module 132 to move. The screw module 132 drives the displacement module 7 to move, and the displacement module 7 drives the test material 10 to move. The displacement module 7 triggers the proximity switch 17, and the proximity switch 17 triggers the servo motor 130, thereby controlling the movement of the displacement module 7.

[0031] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A DC low resistance test device, comprising a first box (1) and a second box (2), characterized in that: A resistance meter (3) is arranged on the top of the first box (1), the first box (1) comprises a control box, a bottom plate (4) is arranged on the bottom of the second box (2), the second box (2) comprises a protective cover, a rib plate (5) is arranged on the upper surface of the bottom plate (4), a fixing plate (6) is arranged on the surface of the rib plate (5), a transmission mechanism (13) is arranged on the surface of the fixing plate (6) away from the rib plate (5), a displacement module (7) is arranged on the transmission mechanism (13), a gold-plated brass block (8) is arranged on the surface of the displacement module (7), a gold-plated terminal (9) is arranged at one end of the gold-plated brass block (8), a test material (10) is arranged on the surface of the gold-plated brass block (8), a test window (11) is opened on the surface of the second box (2), and the gold-plated terminal (9) is electrically connected to the resistance meter (3) through a wire (12).

2. A DC low resistance test device according to claim 1, characterized in that: The transmission mechanism (13) comprises a servo motor (130), a coupling (131) and a screw module (132); the bottom of the screw module (132) is arranged on the upper surface of the bottom plate (4); the top of the screw module (132) is provided with a coupling (131); the output end of the servo motor (130) is connected to the top of the coupling (131); and the displacement module (7) is arranged on the surface of the screw module (132) on the side of the fixed plate (6) away from the rib plate (5).

3. A DC low resistance test device according to claim 2, characterized in that: The number of the displacement modules (7) is two and they are symmetrically arranged on the surface of the screw module (132); a locking screw (14) is threadedly connected to the surface of one side of the gold-plated brass block (8); an adjustment handle (15) is arranged at one end of the two displacement modules (7); and a bakelite board (16) is arranged between the displacement module (7) and the gold-plated brass block (8).

4. A DC low resistance test device according to claim 2, characterized in that: A proximity switch (17) electrically connected to the servo motor (130) is provided on one side of the screw module (132).

5. A DC low resistance test device according to claim 4, characterized in that: The number of the proximity switches (17) is three and they are spaced at equal distances from each other.

6. A DC low resistance test device according to any one of claims 1 to 5, characterized in that: Four corners at the bottom of the base plate (4) are provided with foot cups (18).

7. A DC low resistance test device according to any one of claims 1 to 5, characterized in that: An operating screen (19) is provided on the surface of the first box (1).

8. A DC low resistance test device according to any one of claims 1 to 5, characterized in that: A plurality of threaded holes (20) are provided on the surface of the gold-plated brass block (8) at a side away from the displacement module (7), and the threaded holes (20) are used to install and fix the test material (10).

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