Alternating-current and direct-current voltage-withstanding insulation test equipment
By designing an AC/DC withstand voltage insulation test device and using a combination of carrier and probe components, efficient testing of insulation and conductive parts is achieved, solving the problem of low testing efficiency in existing technologies, meeting mass production requirements, and improving the convenience and safety of testing by displaying test results through indicator lights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN EAVES INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-05-19
AI Technical Summary
In the existing technology, the withstand voltage insulation test efficiency of the component under test is low and cannot meet the mass production requirements, especially for components that have both insulating and conductive parts.
An AC/DC withstand voltage insulation testing device was designed, including a carrier, a probe assembly, and an insulation withstand voltage tester. The carrier is equipped with a placement slot and conductive tape. The probe assembly can be raised and lowered synchronously. The insulation withstand voltage tester is electrically connected to the probe assembly and conductive tape via cables, making contact only with the insulating part and not with the conductive part. The probe body only makes contact with the conductive part, thus achieving efficient detection.
It enables efficient and convenient testing of insulating and conductive parts, can simultaneously test multiple components under test, improves testing efficiency, and displays test results intuitively through indicator lights, ensuring the safety and accuracy of the testing equipment.
Smart Images
Figure CN224263313U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of withstand voltage insulation testing technology, and in particular to AC / DC withstand voltage insulation testing equipment. Background Technology
[0002] Appendix Figure 1 The diagram shows a component under test (DUT), a part of a battery pack. The DUT is a metal part with an insulating coating on a portion of its upper surface, forming an insulating section, while the uncoated portion is a conductive section. When the insulating coating is normal, the DUT should be in an insulating state during use; that is, when an external component is connected to both the insulating and conductive sections, the circuit should not be conductive. In existing technology, a multimeter is typically used to perform withstand voltage insulation tests on the DUT, which is inefficient and cannot meet mass production requirements. Utility Model Content
[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide an AC / DC withstand voltage insulation testing device with high testing efficiency, which meets the testing needs of components under test that have both insulating and conductive parts.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: an AC / DC withstand voltage insulation testing device for testing a component under test, wherein the component under test includes an insulating part and a conductive part arranged along its length direction, and the AC / DC withstand voltage insulation testing device includes:
[0005] A carrier having a placement slot for placing the component to be tested, and a conductive tape being provided at the bottom of the placement slot, the conductive tape being in contact with the insulating part but not with the conductive part;
[0006] The probe assembly is disposed corresponding to the placement slot and located above the carrier. The probe assembly can be raised and lowered synchronously. Each probe assembly includes a probe body corresponding to the conductive part.
[0007] An insulation withstand voltage tester is provided in accordance with the probe assembly, and each insulation withstand voltage tester is electrically connected to the corresponding probe assembly and conductive tape via a cable.
[0008] The beneficial effects of this utility model are as follows:
[0009] The insulation voltage withstand tester provides different test voltages. The conductive tape only contacts the insulating part and does not contact the conductive part, while the probe body only contacts the conductive part. When the insulating part is normal, the conductive tape and the probe body should not conduct electricity, and the circuit formed by the conductive tape, the probe body and the component to be tested is in an open state. If the insulation voltage withstand tester detects that the circuit is conducting, it indicates that the component to be tested is abnormal. The test equipment has high test efficiency, is convenient for placing the component to be tested, and meets the test requirements of components to be tested that have both an insulating part and a conductive part.
[0010] Furthermore, a relief notch corresponding to the conductive part is provided on the carrier, and no conductive tape is provided in the relief notch. The provision of the relief notch prevents the carrier from contacting the conductive part, and even if the carrier is made of a conductive material, it can still meet the detection requirements.
[0011] Furthermore, at least one in-place sensor is provided in the relief notch, and the in-place sensor is used to detect whether a component to be tested is placed in the placement groove.
[0012] Furthermore, a plurality of placement grooves are provided along the horizontal direction, and the probe assemblies correspond to the placement grooves one by one, so as to simultaneously detect a plurality of components to be tested.
[0013] Furthermore, the probe bodies of the same probe assembly are connected in parallel. This can detect different positions of the component to be tested, and any part between a conductive part and an insulating part can be detected. Only when none of the probe bodies is in conduction with the conductive tape can it be considered that this component to be tested is qualified.
[0014] Furthermore, the AC / DC voltage withstand and insulation test equipment further includes a lifting device, and the lifting device includes a lifting driving member and a lifting frame that moves up and down under the drive of the lifting driving member, and the probe assembly is fixed on the lifting frame.
[0015] Furthermore, the lifting device further includes an anti-falling mechanism, and the anti-falling mechanism includes an anti-falling rod that can move horizontally, and the anti-falling rod can extend below the lifting frame to limit the downward movement of the lifting frame. The anti-falling mechanism prevents the lifting frame from falling, improving safety.
[0016] Furthermore, the AC / DC voltage withstand and insulation test equipment further includes a workbench, the carrier is fixed on the workbench, and an indicator light corresponding to the placement groove is provided on the workbench. The test results of the components to be tested in the placement groove are indicated by the indicator light, which is more intuitive and convenient.
[0017] Furthermore, a groove is provided on the workbench, and the indicator light is embedded in the groove and is lower than the placement surface of the workbench. The indicator light does not protrude from the placement surface and does not affect the placement of the carrier.
[0018] Furthermore, the workbench is also provided with a positioning block that is detachably connected to it. The positioning block is located at the corner of the vehicle and is used to define the position of the vehicle. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the component under test in an embodiment of this utility model;
[0020] Figure 2 This is a three-dimensional structural diagram of an embodiment of the present utility model;
[0021] Figure 3 This is a schematic diagram of the carrier being fixed on the workbench in an embodiment of the present invention;
[0022] Figure 4 This is a three-dimensional structural diagram of another embodiment of the present utility model.
[0023] In the picture:
[0024] 1. Component under test; 11. Insulating part; 12. Conductive part;
[0025] 2. Stand; 21. Workbench; 211. Groove;
[0026] 3. Carrier; 31. Placement slot; 32. Clearance notch; 321. Position sensor; 322. Limit block;
[0027] 4. Probe assembly;
[0028] 5. Insulation withstand voltage tester;
[0029] 6. Lifting device; 61. Lifting drive component; 62. Lifting frame; 63. Fall protection mechanism;
[0030] 7. Positioning block. Detailed Implementation
[0031] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0032] This utility model discloses an AC / DC withstand voltage insulation testing device for testing a component 1 under test. Referring to the attached drawings, the component 1 under test includes an insulating portion 11 and a conductive portion 12 arranged along its length. The insulating portion 11 and the conductive portion 12 are spaced apart. The distribution of the conductive portion 12 and the insulating portion 11 varies depending on the component 1 under test. For example, see the attached drawings. Figure 1 As shown, there are three conductive parts 12, located in the middle and at both ends, and two insulating parts 11.
[0033] See appendix Figure 2 As shown, the AC / DC withstand voltage insulation test equipment includes a carrier 3, a probe assembly 4, and an insulation withstand voltage tester 5. The carrier 3 is used for placing the component to be tested 1 and for connecting to the insulation part 11. The probe assembly 4 is connected to the conductive part 12. The insulation withstand voltage tester 5 is used to provide a test voltage and record the test results.
[0034] A placement groove 31 for placing the component to be tested 1 is provided on the carrier 3. A conductive tape is provided at the bottom of the placement groove 31. The conductive tape contacts the insulation part 11 and does not contact the conductive part 12. The conductive tape only contacts the insulation part 11. If there is no abnormality in the insulation part 11, the conductive tape should not conduct with the insulation part 11. Corresponding to the placement groove 31 and located above the carrier 3, the probe assembly 4 can be lifted and lowered synchronously. Each probe assembly 4 includes a probe body corresponding to the conductive part 12. The probe body can abut against the conductive part 12 to conduct with the conductive part 12. The insulation withstand voltage tester 5 is correspondingly arranged with the probe assembly 4. Each insulation withstand voltage tester 5 is electrically connected to the corresponding probe assembly 4 and the conductive tape through a cable.
[0035] The insulation withstand voltage tester 5 provides different test voltages. The conductive tape only contacts the insulation part 11 and does not contact the conductive part 12, while the probe body only contacts the conductive part 12. When the insulation part 11 is normal, the conductive tape and the probe body should not conduct, and the circuit formed by the conductive tape, the probe body, and the component to be tested 1 is in an open state. If the insulation withstand voltage tester 5 detects that the circuit is conductive, it indicates that the component to be tested 1 is abnormal.
[0036] The probe bodies in one probe assembly 4 are connected in parallel to a cable, so that different positions of the component to be tested 1 can be detected. Any part between a conductive part 12 and the insulation part 11 can be detected. Only when no probe body conducts with the conductive tape can it be shown that the component to be tested 1 is qualified. The number and positions of the probe bodies are related to the conductive part 12.
[0037] Exemplarily, in this embodiment, see the appendix Figure 3 As shown, the conductive parts 12 at both ends extend out of the placement groove 31, and at this time, it can be ensured that the conductive parts 12 at both ends do not contact the conductive tape.
[0038] In one embodiment, see the appendix Figure 3 As shown, a relief notch 32 corresponding to the conductive part 12 is provided on the carrier 3, and no conductive tape is provided in the relief notch 3z. In this way, the carrier 3 will not contact the conductive part 12, and even if the carrier 3 is made of a conductive material, it can meet the detection requirements.
[0039] In one embodiment, at least one of the clearance notches 32 is provided with a positioning sensor 321, which is used to detect whether the component to be tested 1 is placed in the placement slot 31. The positioning sensor 321 can be a contact sensor or a proximity sensor. When the component to be tested 1 is placed in the placement slot 31, the positioning sensor 321 sends a signal. However, the probe assembly 4 will only move down to abut against the conductive part 12 when the positioning sensor 321 detects the component to be tested.
[0040] In one embodiment, to improve the positioning effect of the product under test, a limiting block 322 is provided at the clearance notch 32. The limiting block 322 is made of insulating material and has a limiting groove. The conductive part 12 is embedded in the limiting groove. The conductive part 12 and the limiting groove do not contact each other, so the conductive part 12 is suspended. In this way, the limiting groove can limit the position of the conductive part 12 to a certain extent, and on the other hand, it will not be electrically connected to the conductive part 12, thus not affecting the test results.
[0041] To enable simultaneous testing of multiple components 1 under test, in one embodiment, multiple placement slots 31 are provided horizontally. The probe assembly 4 corresponds one-to-one with the placement slot 31, allowing simultaneous testing of multiple components 1 under test.
[0042] See appendix Figure 2 and attached Figure 4 As shown, the AC / DC withstand voltage insulation test equipment also includes a lifting device 6, which is used to drive all probe components 4 to lift synchronously.
[0043] The lifting device 6 includes a lifting drive component 61 and a lifting frame 62 that moves up and down under the drive of the lifting drive component 61. The probe assembly 4 is fixed on the lifting frame 62. The lifting drive component 61 is fixed on the frame, and the lifting frame 62 moves up and down along the frame. The frame is provided with a track to guide the movement of the lifting frame 62, thereby improving the stability of the lifting frame 62.
[0044] The lifting drive component 61 is a pneumatic cylinder or a hydraulic cylinder. The lifting drive component 61 includes a piston rod, which drives the lifting component to move upward when it extends. A sudden interruption of air or hydraulic supply to the lifting drive component 61 may cause the lifting frame 62 to fall. Therefore, in one embodiment, the lifting device 6 further includes a fall protection mechanism 63 to prevent the lifting frame 62 from falling.
[0045] The fall arrestor 63 includes a horizontally movable fall arrestor bar that extends below the lifting frame 62 to limit its downward movement. The lifting frame 62 moves upward under the drive of the lifting drive 61, reaching its initial position. At this point, the fall arrestor bar extends below the lifting frame 62, preventing the lifting frame 62 from falling even if the lifting drive 61 malfunctions. When the lifting frame 62 needs to move downward, the fall arrestor bar moves to one side of the lifting frame 62, so that their projections on the same horizontal plane do not coincide. In this case, the fall arrestor bar will not interfere with the movement of the lifting frame 62.
[0046] The fall arrest mechanism 63 also includes a fall arrest drive, which drives the fall arrest rod to move horizontally. The fall arrest drive is fixed to the frame.
[0047] In one embodiment, as shown in the accompanying drawings, the lifting device 6 further includes a flexible limiting rod, which is communicatively connected to the lifting drive 61. The flexible limiting rod includes a fixed rod fixed to the frame and a limiting rod partially inserted into the fixed rod and capable of moving up and down along the fixed rod. An elastic element is disposed between the fixed rod and the limiting rod. When the limiting rod abuts against the lifting frame 62, a signal is sent to the lifting drive 61, causing the lifting drive 61 to stop. Even if the lifting drive 61 malfunctions, the limited movement distance of the limiting rod will still restrict the continuous downward movement of the lifting frame 62.
[0048] The AC / DC withstand voltage insulation testing equipment also includes a workbench 21, with the fixed platform fixed to the upright 2. The carrier 3 is fixed on the workbench 21, and the workbench 21 is equipped with indicator lights corresponding to the placement slots 31. The indicator lights are used to indicate the testing structure of the component 1 under test 1 in each placement slot 31. The indicator lights are tri-color LEDs; when the test passes, the corresponding indicator light displays green, and when the test fails, the corresponding indicator light displays red. The indicator lights allow for a direct and quick view of the test results, and the component 1 under test can be classified according to the test results.
[0049] See appendix Figure 3 As shown, a groove 211 is provided on the workbench 21, and the indicator light is embedded in the groove 211 and is lower than the placement surface of the workbench 21. At this time, the indicator light will not protrude from the placement surface of the workbench 21 and will not interfere with the placement of the carrier 3.
[0050] The workbench 21 is also equipped with a positioning block 7 that is detachably connected to it. The positioning block 7 is located at the corner of the vehicle 3 and is used to limit the position of the vehicle 3. The positioning block 7 limits the position of the vehicle 3 in the horizontal plane, preventing the vehicle 3 from moving horizontally on the workbench 21. The positioning block 7 is detachable and can be replaced as needed for testing.
[0051] During testing, the carrier 3 is fixed on the workbench 21, and the component under test 1 is placed in the placement cavity. When the positioning sensor 321 detects that the component under test 1 is in place, the lifting drive 61 drives the lifting frame 62 and the probe assembly 4 to move down synchronously until the probe body of the probe assembly 4 contacts the conductive part 12. At this time, because the placement groove 31 is equipped with conductive tape corresponding to the insulating part 11, and the conductive tape is already connected to the withstand voltage insulation tester with the probe assembly 4, the test circuit is completed. The insulation withstand voltage tester 5 applies different amounts of DC and AC current. If the test circuit remains unconducted, the component under test 1 passes the test; otherwise, the component under test fails the test. The indicator light will illuminate according to the test result.
[0052] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.
Claims
1. An AC / DC withstand voltage insulation testing device for testing a component under test, the component under test comprising an insulating portion and a conductive portion arranged along its length, characterized in that: The AC / DC withstand voltage insulation testing equipment includes: The carrier has a placement slot for placing the component to be tested. The bottom of the placement slot is provided with conductive tape, which is in contact with the insulating part but not with the conductive part. The probe assembly is disposed corresponding to the placement slot and located above the carrier. The probe assembly can be raised and lowered synchronously. Each probe assembly includes a probe body corresponding to the conductive part. An insulation withstand voltage tester is provided in accordance with the probe assembly, and each insulation withstand voltage tester is electrically connected to the corresponding probe assembly and conductive tape via a cable.
2. The AC / DC withstand voltage insulation testing equipment according to claim 1, characterized in that: The carrier has a clearance notch corresponding to the conductive part, and no conductive tape is placed in the clearance notch.
3. The AC / DC withstand voltage insulation testing equipment according to claim 2, characterized in that: At least one of the clearance notches is provided with a positioning sensor, which is used to detect whether the part to be tested is placed in the placement slot.
4. The AC / DC withstand voltage insulation testing equipment according to claim 1, characterized in that: The placement slots are arranged in multiple horizontal directions.
5. The AC / DC withstand voltage insulation testing equipment according to claim 1, characterized in that: The probe bodies of the same probe assembly are connected in parallel.
6. The AC / DC withstand voltage insulation testing equipment according to any one of claims 1-5, characterized in that: The AC / DC withstand voltage insulation testing equipment also includes a lifting device, which includes a lifting drive and a lifting frame that moves up and down under the drive of the lifting drive. The probe assembly is fixed on the lifting frame.
7. The AC / DC withstand voltage insulation testing equipment according to claim 6, characterized in that: The lifting device also includes a fall protection mechanism, which includes a fall protection bar that can move horizontally and extends below the lifting frame to limit the downward movement of the lifting frame.
8. The AC / DC withstand voltage insulation testing equipment according to any one of claims 1-5, characterized in that: The AC / DC withstand voltage insulation testing equipment also includes a workbench, on which the carrier is fixed, and on which indicator lights corresponding to the placement slots are provided.
9. The AC / DC withstand voltage insulation testing equipment according to claim 8, characterized in that: The workbench has a groove, and the indicator light is embedded in the groove and is lower than the placement surface of the workbench.
10. The AC / DC withstand voltage insulation testing equipment according to claim 9, characterized in that: The workbench is also provided with a positioning block that is detachably connected to it. The positioning block is located at the corner of the vehicle and is used to define the position of the vehicle.