Rapid testing device for direct current contactor

Abstract

The utility model provides a rapid testing device for a direct current contactor, belongs to the technical field of testing of direct current contactors, and aims to solve the problem that the use convenience of a tester is affected due to the fact that manual arrangement of signal transmission lines of detection needles consumes a long time. Comprising a tester main body, a tester dustproof cover, a sliding storage box, a signal wire winding shaft, a power transmission shaft and an electromagnetic shielding box, the tester dustproof cover is hinged to the rear side of the tester main body; the sliding storage box is connected to the rear side of the tester main body in an up-down sliding manner; the signal wire winding shaft is rotationally connected to the left side and the right side of the sliding storage box; the power transmission shaft is rotationally connected to the middle of the sliding storage box. The electromagnetic shielding box is in bolted connection with the front side of the sliding storage box; according to the utility model, the inconvenience of manually arranging the detection pin signal transmission lines is avoided, the use convenience of the tester is improved, and a large amount of time is saved.

Description

Technical Field

[0001] This utility model belongs to the field of DC contactor testing technology, and more specifically, it relates to a DC contactor rapid testing device. Background Technology

[0002] DC contactors may malfunction for various reasons during actual use. In such cases, a tester is needed to test parameters such as the contact resistance of the DC contactor. During the test, the signal transmission line of the test probe should first be inserted into the connection port of the tester. Then, the positive and negative test probes should be brought into contact with the positive and negative contacts of the DC contactor respectively to quickly test whether the contact resistance of the DC contactor is within the normal range. The contact resistance value of the DC contactor can then be read from the display screen of the tester.

[0003] Based on the above, after the existing tester is used, the signal transmission line of the test probe needs to be manually tidied up and put into the tester's storage box. This operation is inconvenient and takes a long time, affecting the ease of use of the tester. When multiple DC contactors need to be tested, the storage time after each test accumulates continuously, seriously affecting the testing efficiency of DC contactors. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a rapid testing device for DC contactors. This solves the problem that after use, existing testing instruments require manual organization of the signal transmission lines of the test probes before placing them back into the instrument's storage box. This process is inconvenient and time-consuming, affecting the ease of use of the testing instrument. Furthermore, when testing multiple DC contactors, the time spent on storage after each test accumulates, severely impacting the testing efficiency of DC contactors.

[0005] The purpose and effectiveness of this utility model's rapid testing device for DC contactors are achieved through the following specific technical means:

[0006] A rapid testing device for DC contactors includes a tester body, a dust cover, a sliding storage box, a signal line winding spool, a dustproof structure, a winding structure, a power transmission shaft, and an electromagnetic shielding box. The dust cover is hinged to the rear side of the tester body. The sliding storage box is slidably connected to the rear side of the tester body. Two signal line winding spools are provided, and the two signal line winding spools are rotatably connected to the left and right sides of the sliding storage box, respectively. The dustproof structure is located on the upper part of the tester body. The power transmission shaft is rotatably connected to the middle part of the sliding storage box. The electromagnetic shielding box is bolted to the front side of the sliding storage box, and the electromagnetic shielding box is slidably connected to the tester body. The winding structure is located on the inner side of the tester body.

[0007] Furthermore, the dustproof structure includes a positioning mounting base and a swing dustproof cover; multiple positioning mounting bases are provided, and multiple positioning mounting bases are fixedly connected to the upper end face of the main body of the tester; multiple swing dustproof covers are provided, and multiple swing dustproof covers are rotatably connected to the upper part of multiple positioning mounting bases respectively.

[0008] Furthermore, the dustproof structure also includes sealing rubber pads and reset spiral springs; multiple sealing rubber pads are provided, and the multiple sealing rubber pads are respectively adhered to the lower end face of the multiple swinging dustproof covers; multiple reset spiral springs are provided, and the multiple swinging dustproof covers are elastically connected to the multiple positioning mounting seats through the multiple reset spiral springs.

[0009] Furthermore, the winding structure includes a first positioning shaft and a limiting traction rope; there are two first positioning shafts, which are respectively fixedly connected to the left and right sides of the dust cover of the testing instrument; there are two limiting traction ropes, which are respectively fixedly connected to the inner sides of the two first positioning shafts.

[0010] Furthermore, the winding structure also includes a second positioning shaft and a reset elastic element; there are two second positioning shafts, which are respectively fixedly connected to the left and right sides of the sliding storage box, and are respectively fixedly connected to the two limiting traction ropes; there are multiple reset elastic elements, and the sliding storage box is elastically connected to the main body of the tester through multiple reset elastic elements.

[0011] Furthermore, the winding structure also includes signal line positioning holes, a synchronous transmission structure, and a miniature reciprocating drive; two signal line positioning holes are provided, each located on the upper part of one of the two signal line winding shafts; the synchronous transmission structure is a synchronous belt drive structure, and the power transmission shaft is connected to the two signal line winding shafts via the synchronous transmission structure; the miniature reciprocating drive is bolted to the inner side of the electromagnetic shielding box, and the output shaft of the miniature reciprocating drive is coaxially and fixedly connected to the power transmission shaft.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention utilizes a swing-type dust cover and sealing rubber pad to shield the connection port when the tester is not in use. This effectively prevents dust or impurities from falling into the connection port and affecting the stability of the test probe signal transmission line connection, ensuring signal transmission stability and thus guaranteeing the accuracy of DC contactor test results. This significantly improves the performance of the tester. After the tester is finished, the test probe signal transmission line is automatically wound up by the signal line rewinding shaft, effectively avoiding the inconvenience of manually winding the test probe signal transmission line. This enhances the ease of use of the tester, reduces the workload of testers, saves a significant amount of time, and effectively improves testing efficiency when multiple DC contactors need to be tested. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram showing the disassembled structure of the positioning mounting base and the swing dust cover of this utility model.

[0016] Figure 3 This is a schematic diagram showing the position of the reset spiral spring of this utility model.

[0017] Figure 4 This is a schematic diagram showing the positional relationship between the sliding storage box and the electromagnetic shielding box of this utility model.

[0018] Figure 5 This is a schematic diagram showing the positional relationship between the sliding storage box and the signal cable rewind shaft of this utility model.

[0019] Figure 6 This is a schematic diagram showing the positional relationship between the signal line winding shaft and the power transmission shaft of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Tester body; 101. Positioning mounting base; 102. Swinging dust cover; 103. Sealing rubber gasket; 104. Reset spiral spring; 2. Tester dust cover; 201. First positioning shaft; 202. Limiting traction rope; 3. Sliding storage box; 301. Second positioning shaft; 302. Reset elastic element; 4. Signal line winding shaft; 401. Signal line positioning socket; 402. Synchronous transmission structure; 5. Power transmission shaft; 6. Electromagnetic shielding box; 601. Miniature reciprocating drive component. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0023] Example 1:

[0024] As attached Figure 1 To be continued Figure 3 As shown:

[0025] This utility model provides a rapid testing device for DC contactors, including a tester body 1, a tester dust cover 2, a sliding storage box 3, a signal cable winding shaft 4, a dustproof structure, a power transmission shaft 5, and an electromagnetic shielding box 6. The tester dust cover 2 is hinged to the rear side of the tester body 1. The sliding storage box 3 is slidably connected to the rear side of the tester body 1. Two signal cable winding shafts 4 are provided, and the two signal cable winding shafts 4 are rotatably connected to the left and right sides of the sliding storage box 3, respectively. The dustproof structure is located on the upper part of the tester body 1. The power transmission shaft 5 is rotatably connected to the middle part of the sliding storage box 3. The electromagnetic shielding box 6 is bolted to the front side of the sliding storage box 3, and the electromagnetic shielding box 6 is slidably connected to the tester body 1.

[0026] The dustproof structure includes a positioning mounting base 101 and a swing dustproof cover 102; multiple positioning mounting bases 101 are provided, and multiple positioning mounting bases 101 are fixedly connected to the upper end face of the tester body 1; multiple swing dustproof covers 102 are provided, and multiple swing dustproof covers 102 are rotatably connected to the upper part of multiple positioning mounting bases 101 respectively.

[0027] The dustproof structure also includes a sealing rubber pad 103 and a reset spiral spring 104; multiple sealing rubber pads 103 are provided, and multiple sealing rubber pads 103 are respectively bonded to the lower end face of multiple swinging dustproof covers 102; multiple reset spiral springs 104 are provided, and multiple swinging dustproof covers 102 are elastically connected to multiple positioning mounting seats 101 through multiple reset spiral springs 104.

[0028] The specific usage and function of this embodiment: Open the dust cover 2 of the tester. At this time, the dust cover 2 will pull the sliding storage box 3 upward, causing the wound-up test needle signal transmission line to move upward. At this time, the test needle signal transmission line can be easily removed from the signal line winding shaft 4. After plugging in the power cord of the tester body 1, flip the swing dust cover 102 upward, so that the swing dust cover 102 swings along the positioning mounting base 101. At this time, the connection port of the test needle signal transmission line on the tester body 1 is exposed. Insert the test needle signal transmission line into the connection port to use the test needle to test the contact resistance of the DC contactor. After the test is completed, pull the test needle signal transmission line out of the connection port. At this time, the reset spiral spring 104 will drive the swing dust cover 102 to reset, so that the sealing rubber gasket 103 presses on the connection port.

[0029] Example 2:

[0030] As attached Figure 1 To be continued Figure 6 As shown:

[0031] Based on Embodiment 1, a winding structure is also included; the winding structure is disposed on the inner side of the main body 1 of the tester.

[0032] The winding structure includes a first positioning shaft 201 and a limiting traction rope 202. There are two first positioning shafts 201, which are fixedly connected to the left and right sides of the dust cover 2 of the tester, respectively. There are two limiting traction ropes 202, which are fixedly connected to the inner side of the two first positioning shafts 201, respectively.

[0033] The winding structure also includes a second positioning shaft 301 and a reset elastic element 302. There are two second positioning shafts 301, which are fixedly connected to the left and right sides of the sliding storage box 3, respectively, and are fixedly connected to two limiting traction ropes 202. There are multiple reset elastic elements 302, and the sliding storage box 3 is elastically connected to the main body 1 of the tester through multiple reset elastic elements 302.

[0034] The winding structure also includes a signal line positioning socket 401, a synchronous transmission structure 402, and a miniature reciprocating drive 601. There are two signal line positioning sockets 401, which are respectively located on the upper part of the two signal line winding shafts 4. The synchronous transmission structure 402 is a synchronous belt drive structure, and the power transmission shaft 5 is connected to the two signal line winding shafts 4 through the synchronous transmission structure 402. The miniature reciprocating drive 601 is bolted to the inside of the electromagnetic shielding box 6, and the output shaft of the miniature reciprocating drive 601 is coaxially fixedly connected to the power transmission shaft 5.

[0035] The specific usage and function of this embodiment are as follows: When the dust cover 2 of the tester is opened, the first positioning shaft 201 and the limiting traction rope 202 will pull the second positioning shaft 301 and the sliding storage box 3 upward, so that the detection needle signal transmission line moves to the top of the tester body 1. When the test is completed and the detection needle signal transmission line needs to be stored, the detection needle signal transmission line is inserted into the signal line positioning socket 401. Then, the micro reciprocating drive 601 is started, so that the power transmission shaft 5 and the synchronous transmission structure 402 drive the signal line winding shaft 4 to rotate. During the rotation of the signal line winding shaft 4, the detection needle signal transmission line will be automatically wound up. After the winding is completed, the power cord of the tester can be unplugged. When the dust cover 2 of the tester is closed, the reset elastic element 302 will drive the sliding storage box 3 to reset. The electromagnetic shielding box 6 can shield the electromagnetic signals generated during the operation of the micro reciprocating drive 601.

[0036] The following points should be noted in this article:

[0037] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0038] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0039] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A DC contactor rapid testing device, comprising a tester body (1), a tester dust cover (2), a sliding storage box (3), a signal line winding shaft (4), a dustproof structure, a winding structure, a power transmission shaft (5), and an electromagnetic shielding box (6); the tester dust cover (2) is hinged to the rear side of the tester body (1); characterized in that: The sliding storage box (3) is slidably connected to the rear side of the tester body (1); two signal line winding shafts (4) are provided, and the two signal line winding shafts (4) are rotatably connected to the left and right sides of the sliding storage box (3) respectively; the dustproof structure is provided on the upper part of the tester body (1); the power transmission shaft (5) is rotatably connected to the middle part of the sliding storage box (3); the electromagnetic shielding box (6) is bolted to the front side of the sliding storage box (3), and the electromagnetic shielding box (6) is slidably connected to the tester body (1); the winding structure is provided on the inner side of the tester body (1).

2. The DC contactor rapid testing device as described in claim 1, characterized in that: The dustproof structure includes a positioning mounting base (101) and a swing dustproof cover (102); multiple positioning mounting bases (101) are provided, and multiple positioning mounting bases (101) are fixedly connected to the upper end face of the main body (1) of the tester; multiple swing dustproof covers (102) are provided, and multiple swing dustproof covers (102) are rotatably connected to the upper part of multiple positioning mounting bases (101).

3. The DC contactor rapid testing device as described in claim 2, characterized in that: The dustproof structure also includes a sealing rubber pad (103) and a reset spiral spring (104); multiple sealing rubber pads (103) are provided, and multiple sealing rubber pads (103) are respectively bonded to the lower end face of multiple swing dustproof covers (102); multiple reset spiral springs (104) are provided, and multiple swing dustproof covers (102) are elastically connected to multiple positioning mounting seats (101) through multiple reset spiral springs (104).

4. The DC contactor rapid testing device as described in claim 1, characterized in that: The winding structure includes a first positioning shaft (201) and a limiting traction rope (202); there are two first positioning shafts (201), and the two first positioning shafts (201) are respectively fixedly connected to the left and right sides of the dust cover (2) of the tester; there are two limiting traction ropes (202), and the two limiting traction ropes (202) are respectively fixedly connected to the inner side of the two first positioning shafts (201).

5. The DC contactor rapid testing device as described in claim 4, characterized in that: The winding structure also includes a second positioning shaft (301) and a reset elastic element (302); there are two second positioning shafts (301), which are fixedly connected to the left and right sides of the sliding storage box (3) respectively, and the two second positioning shafts (301) are fixedly connected to the two limiting traction ropes (202) respectively; there are multiple reset elastic elements (302), and the sliding storage box (3) is elastically connected to the tester body (1) through multiple reset elastic elements (302).

6. The DC contactor rapid testing device as described in claim 5, characterized in that: The winding structure also includes a signal line positioning socket (401), a synchronous transmission structure (402), and a miniature reciprocating drive (601); there are two signal line positioning sockets (401), which are respectively opened on the upper part of the two signal line winding shafts (4); the synchronous transmission structure (402) is a synchronous belt drive structure, and the power transmission shaft (5) is connected to the two signal line winding shafts (4) through the synchronous transmission structure (402); the miniature reciprocating drive (601) is bolted to the inner side of the electromagnetic shielding box (6), and the output shaft of the miniature reciprocating drive (601) is coaxially fixedly connected to the power transmission shaft (5).

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