Insulation performance testing device
By designing an insulation performance test device with automatic disconnection function, the problems of low testing efficiency and low automation in the prior art are solved, and efficient and safe large-scale testing of insulated wearable devices are achieved.
Patent Information
- Application Number
- CN202510011105.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-03-14
AI Technical Summary
The existing insulation performance testing device needs to manually cut off the test circuit when it detects that the leakage current exceeds the standard, resulting in low testing efficiency and low automation, and it is impossible to test large-scale insulated wearable devices.
An insulation performance testing device is designed, including a water tank, pressure supply assembly and parallel test circuit. The test circuit is equipped with a protection relay, a breaking circuit and a connection circuit. The mobile connector of the protection relay triggers and moves when the insulating wearable device is broken down, and automatically disconnects the breaking circuit to ensure the safety of the test and continue.
It achieves high degree of automation, high safety performance and high testing efficiency, and can test a large number of insulated wearable devices at the same time.
Smart Images
Figure CN119619766A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of testing devices, and in particular to an insulation performance testing device. Background Art
[0002] Insulation wearable devices such as insulating headgear and insulating boots need to be tested for insulation performance before use or before leaving the factory to ensure that the insulation performance of the insulating wearable devices is qualified. In the related art, when the test device detects that the leakage current exceeds the standard during the test of the insulating wearable device, in other words, when the test current breaks through the insulating wearable device, it is necessary to manually cut off the test circuit, resulting in low test efficiency and low degree of automation of the test device in the related art, and it is impossible to test a large number of insulating wearable devices. Summary of the invention
[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.
[0004] To this end, an embodiment of the present invention provides an insulation performance testing device.
[0005] The insulation performance testing device of the embodiment of the present invention comprises:
[0006] A water tank, a pressure supply component and at least two test circuits connected in parallel with the pressure supply component, the water tank is used to place an insulating wearable device, the test circuit includes a protection relay, a disconnecting circuit and a connecting circuit connected in sequence in a direction away from the pressure supply component, the protection relay has a movable joint that can pass current, the disconnecting circuit is connected between the movable joint and the first end of the connecting circuit, the second end of the connecting circuit is used to be arranged in a conductive medium inside the insulating wearable device, and the movable joint is triggered and moved when the insulating wearable device is broken down, so that the disconnecting circuit disconnects the movable joint and the first end of the connecting circuit.
[0007] In the insulation performance test device of the embodiment of the present invention, the pressure supply component is connected in parallel with at least two test circuits, each test circuit can test the corresponding insulation wearable device, and in the test circuit, the movable joint of the protection relay is triggered and moved when the insulation wearable device is broken down, so that the disconnect circuit automatically disconnects the first end of the connection between the movable joint and the connection circuit, so as to ensure the safety of the test device, and enable the remaining test circuits to continue to test the corresponding insulation wearable device. Therefore, the insulation performance test device of the embodiment of the present invention has a high degree of automation, high safety performance, high test efficiency, and can test a large number of insulation wearable devices at the same time.
[0008] In some embodiments, the disconnect circuit can be broken under the action of tension, or the disconnect circuit is detachably connected to the movable joint, or the disconnect circuit is detachably connected to the first end of the connecting circuit.
[0009] In some embodiments, the insulation performance testing device further includes an insulating bracket, the insulating bracket is disposed on the water tank, and the test circuit is disposed on the insulating bracket.
[0010] In some embodiments, the insulation performance testing device also includes a fixed joint that can be energized, and the fixed joint is arranged on the insulating bracket. The fixed joints are at least two arranged corresponding to the test circuit. The connecting circuit and the protective relay are both arranged on the insulating bracket. The first end of the connecting circuit is connected to the corresponding fixed joint, and the disconnecting circuit is connected between the corresponding movable joint and the corresponding fixed joint, so that the disconnecting circuit is connected to the first end of the corresponding connecting circuit through the corresponding fixed joint.
[0011] In some embodiments, the insulation performance testing device further includes a control box, wherein the control box is disposed on the top of the insulation bracket, the protection relay is disposed in the control box, and the movable joint extends from the box wall of the control box.
[0012] In some embodiments, the insulation performance testing device also includes a display screen, which is arranged in the control box. There are at least two display screens connected to the test circuits, and the display screens are connected upstream of the corresponding protection relays. The display screens are used to display the current value of the corresponding test circuit when the corresponding insulating wearable device is broken down.
[0013] In some embodiments, the water tank includes a tank body, a first insulating terminal and a second insulating terminal, the first insulating terminal is arranged at a first end of the tank body, the second insulating terminal is arranged at a second end of the tank body, and the insulating bracket is arranged on the first insulating terminal and the second insulating terminal.
[0014] In some embodiments, both the first insulating terminal and the second insulating terminal are detachably connected to the insulating bracket.
[0015] In some embodiments, the insulating bracket includes a bracket body, a first splicing piece and a second splicing piece, the first splicing piece is detachably connected to the first end of the bracket body, the second splicing piece is detachably connected to the second end of the bracket body, the insulating bracket has a first position and a second position relative to the water tank, in the first position, the bracket body connects the first splicing piece and the second splicing piece, the first splicing piece is carried on the first insulating terminal, and the second splicing piece is carried on the second insulating terminal, in the second position, the first splicing piece is detached from both the first insulating terminal and the bracket body, the second splicing piece is detached from both the second insulating terminal and the bracket body, and the bracket body is carried on the tank.
[0016] In some embodiments, the water tank includes a box body and an opener, the opener is arranged in the box body, the insulating wearable device includes insulating gloves and insulating boots, the box body is used to carry the insulating boots, and the opener is used to set the insulating gloves and open the insulating gloves.
[0017] In some embodiments, the water tank includes a box body, a plug and a cover, the box body is provided with a drain outlet, the plug is used to plug the inner end of the drain outlet, and the cover is threadedly connected to the outer end of the drain outlet.
[0018] In some embodiments, the voltage supply component includes a withstand voltage tester and a step-up transformer, the withstand voltage tester is connected to the step-up transformer, and the at least two test circuits are connected in parallel to the step-up transformer. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 Schematic diagram of an insulation performance testing device according to an embodiment of the present invention.
[0020] Reference numerals:
[0021] 1. Water tank; 11. Box body; 12. First insulating terminal; 13. Second insulating terminal; 14. Opener; 2. Pressure supply assembly; 21. Withstand voltage tester; 22. Step-up transformer; 3. Test circuit; 31. Moving joint; 32. Disconnecting circuit; 33. Connecting circuit; 4. Insulating bracket; 41. Bracket body; 411. Joint beam; 412. Load-bearing beam; 42. First splicing piece; 43. Second splicing piece; 5. Fixed joint; 6. Control box; 7. Display screen. DETAILED DESCRIPTION
[0022] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.
[0023] Reference below Figure 1 An insulation performance testing device according to an embodiment of the present invention is described.
[0024] like Figure 1 As shown, the insulation performance testing device according to the embodiment of the present invention includes a water tank 1 , a pressure supply component 2 and a testing circuit 3 .
[0025] The water tank 1 is used to place insulating wearable equipment.
[0026] There are at least two test circuits 3 connected in parallel to the pressure supply assembly 2. Preferably, but not limited to, there are multiple test circuits 3, such as 8, 16, etc.
[0027] The test circuit 3 includes a protection relay, a disconnecting circuit 32 and a connecting circuit 33 which are connected in sequence in a direction away from the pressure supply component 2. The protection relay has a movable joint 31 through which current can pass. The disconnecting circuit 32 is connected between the movable joint 31 and the first end of the connecting circuit 33. The second end of the connecting circuit 33 is used to be arranged in a conductive medium inside the insulating wearable device. The movable joint 31 is triggered and moved when the insulating wearable device is broken down, so that the disconnecting circuit 32 disconnects the first end of the connecting circuit 33 from the movable joint 31.
[0028] When the insulation performance test device is used, the insulating wearable equipment to be tested, such as insulating gloves and insulating boots, is placed in a water tank, and part of the insulating wearable equipment is located below the liquid level in the water tank, for example, two-thirds of the insulating wearable equipment is located below the liquid level. Conductive media such as water, metal particles, metal balls, etc. are arranged inside the insulating wearable equipment. The insulating wearable equipment is arranged corresponding to the second end of the connecting circuit 33, and the second end of the connecting circuit 33 is extended into the conductive medium inside the corresponding insulating wearable equipment. Then the pressure supply component 2 is turned on, and the current flows from the pressure supply component 2 to each test circuit 3, and is released through the second end of the connecting circuit 33. When the insulating wearable equipment is broken down, the corresponding protection relay is triggered and the movable joint 31 of the protection relay is moved, so that the corresponding disconnecting circuit 32 disconnects the first end of the connecting circuit 33 and the movable joint 31. Other test circuits 3 can still continue to operate to test the corresponding insulating wearable equipment.
[0029] It should be noted that the water tank 1 is grounded. The water tank 1 can be made of metal and placed on the ground, or a grounding wire can be set on the water tank 1. Preferably, a grounding wire is set.
[0030] In the insulation performance test device of the embodiment of the present invention, the pressure supply component is connected in parallel with at least two test circuits, each test circuit can test the corresponding insulation wearable device, and in the test circuit, the movable joint of the protection relay is triggered and moved when the insulation wearable device is broken down, so that the disconnect circuit automatically disconnects the first end of the connection between the movable joint and the connection circuit, so as to ensure the safety of the test device, and enable the remaining test circuits to continue to test the corresponding insulation wearable device. Therefore, the insulation performance test device of the embodiment of the present invention has a high degree of automation, high safety performance, high test efficiency, and can test a large number of insulation wearable devices at the same time.
[0031] In some embodiments, the disconnect circuit 32 is breakable under tension.
[0032] like Figure 1 As shown, the movable joint 31 moves away from the connection circuit 33 (eg Figure 1 The movable joint 31 is moved upwardly (in the upward direction shown in the figure) to apply a pulling force to the disconnecting circuit 32, and the disconnecting circuit 32 breaks after being subjected to the pulling force, thereby disconnecting the first end (such as the one shown in the figure) of the connecting circuit 33 and the movable joint 31. Figure 1 The top of the connection circuit 33 is shown).
[0033] In some embodiments, the disconnect circuit 32 is detachably connected to the movable joint 31 .
[0034] like Figure 1 As shown, the disconnecting circuit 32 can be mounted on the movable joint 31, and the movable joint 31 is arranged along the Figure 1 The mobile connector 31 is moved in the front-to-back direction as shown and is disengaged from the housing space of the disconnecting circuit 32, so that the disconnecting circuit 32 is separated from the movable connector 31, and the first end (such as the first end) of the disconnecting circuit 33 is disconnected from the movable connector 31. Figure 1 The top of the connection circuit 33 is shown).
[0035] The disconnect circuit 32 can also be tied to the movable joint 31 by a slipknot, and the movable joint 31 moves away from the connection circuit 33 (such as Figure 1 The movable joint 31 is disconnected from the first end (as shown in the upward direction) of the connecting circuit 33 by pulling the slipknot to release the disconnect circuit 32 and the movable joint 31. Figure 1 The top of the connection circuit 33 is shown).
[0036] In some embodiments, the disconnecting circuit 32 is detachably connected to the first end of the connecting circuit 33 .
[0037] like Figure 1 As shown, the disconnect circuit 32 is tied to the first end of the connecting circuit 33 (such as Figure 1 The top of the connecting circuit 33 is shown in FIG. 1 ), and the moving joint 31 is moved in a direction away from the connecting circuit 33 (as shown in FIG. 1 ). Figure 1The movable joint 31 is moved upwardly as shown in the figure to pull the slipknot to loosen, so that the disconnecting circuit 32 is separated from the first end of the connecting circuit 33, and the first end of the connecting circuit 33 (such as the disconnecting movable joint 31) is disconnected. Figure 1 The top of the connection circuit 33 is shown).
[0038] In some embodiments, the insulation performance testing device of the embodiment of the present invention further includes an insulation bracket 4 , the insulation bracket 4 is arranged on the water tank 1 , and the test circuit 3 is arranged on the insulation bracket 4 .
[0039] like Figure 1 As shown, the insulating bracket 4 is arranged on the water tank 1, and the test circuit 3 is arranged on the insulating bracket 4. The insulating bracket 4 separates the pressure supply component 2 and the test circuit 3 from the water tank 1 to prevent the large voltage carried by the pressure supply component 2 and the test circuit 3 from being transmitted to the water tank 1, thereby ensuring the safety of the operator and making the insulation performance test device have a strong safety performance.
[0040] In some embodiments, the insulation performance testing device of the embodiment of the present invention also includes a fixed joint 5 that can be energized, the fixed joint 5 is arranged on the insulating bracket 4, there are at least two fixed joints 5 arranged corresponding to the test circuit 3, the connecting circuit 33 and the protective relay are both arranged on the insulating bracket 4, the first end of the connecting circuit 33 is connected to the corresponding fixed joint 5, and the disconnecting circuit 32 is connected between the corresponding movable joint 31 and the corresponding fixed joint 5, so that the disconnecting circuit 32 is connected to the first end of the corresponding connecting circuit 33 through the corresponding fixed joint 5.
[0041] like Figure 1 As shown, the insulating bracket 4 has a joint beam 411 and a bearing beam 412 extending in the left-right direction. The joint beam 411 and the bearing beam 412 are arranged at intervals in the vertical direction, and the joint beam 411 is located above the bearing beam 412 .
[0042] The joint beam 411 is provided with a fixed joint 5 that can be energized. The number of the fixed joints 5 is at least two and preferably but not limited to multiple, such as 8, 16, etc., arranged corresponding to the test circuits 3 .
[0043] The protection relay is arranged on the top of the insulating support 4 so that the movable joint 31 is located above the joint crossbeam 411 and the fixed joint 5 .
[0044] The middle part of the connection circuit 33 is arranged on the bearing beam 412, and preferably penetrates the bearing beam 412. The top of the connection circuit 33 is connected to the corresponding fixing joint 5, and the bottom of the connection circuit 33 extends downward from the bearing beam 412.
[0045] The disconnecting circuit 32 is connected between the corresponding movable joint 31 and the corresponding fixed joint 5 to indirectly connect the corresponding connecting circuit 33 through the fixed joint 5 .
[0046] This makes it easier for the movable joint 31 to drive the disconnecting circuit 32 to disconnect the movable joint 31 and the connecting circuit 33 .
[0047] It should be noted that if the disconnect circuit 32 is detachably connected to the top of the connecting circuit 33, the disconnect circuit 32 can be tied to the fixed joint 5 through a slipknot, and the movable joint 31 is moved upward to pull the slipknot to loosen, so that the disconnect circuit 32 is separated from the fixed joint 5, thereby separating the disconnect circuit 32 from the top of the connecting circuit 33.
[0048] In some embodiments, the second terminal of the connection circuit 33 (eg Figure 1 The bottom end of the connecting circuit 33 is set to a spiral shape. The length of the second end of the connecting circuit 33 is retractable, so that the second end of the connecting circuit 33 can be easily inserted into the conductive medium inside the insulating wearable device, and the second end of the connecting circuit 33 can be taken out of the insulating wearable device after the test is completed.
[0049] The connection circuit 33 is preferably, but not limited to, a copper wire provided with an insulating layer, so that the bottom end of the connection circuit 33 can be stretched easily.
[0050] In some embodiments, the insulation performance testing device of the embodiment of the present invention also includes a control box 6, which is arranged on the top of the insulating bracket 4, the protection relay is arranged in the control box 6, and the movable joint 31 extends from the box wall of the control box 6.
[0051] like Figure 1 As shown, a control box 6 is disposed on the top of the insulating support 4 , all protection relays are disposed in the control box 6 , and a movable joint 31 of each protection relay extends out from the box wall of the control box 6 .
[0052] The control box 6 protects the protection relay and the operator, preventing the operator from accidentally touching the protection relay, causing the protection relay to be triggered by external force and the operator to touch the point. The movable joint 31 extends from the wall of the control box 6 to facilitate the connection of the disconnecting circuit 32.
[0053] In some embodiments, the insulation performance testing device of the embodiment of the present invention also includes a display screen 7, which is arranged in the control box 6. The display screen 7 is at least two correspondingly connected to the test circuit 3, and the display screen 7 is connected upstream of the corresponding protection relay. The display screen 7 is used to display the current value of the corresponding test circuit 3 when the corresponding insulating wearable device is broken down.
[0054] like Figure 1As shown, the control box 6 is provided with a display screen 7, and the display screen 7 is at least two, preferably but not limited to multiple, such as 8, 16, etc., arranged corresponding to the test circuit 3. The display screen 7 is connected to the corresponding test circuit 3 through a wire, and is connected to the upstream of the corresponding protection relay along the current direction in the test circuit 3, in other words, it is connected to the side of the corresponding protection relay away from the disconnecting circuit 32.
[0055] The display screen 7 is used to display the current value of the corresponding test circuit 3 when the corresponding insulating wearable device is broken down. In other words, the display screen 7 is used to display the current value of the connected test circuit 3 when the corresponding insulating wearable device is broken down, so as to be recorded as the test result.
[0056] Furthermore, the display screen 7 can also display the real-time current value of the connected test circuit 3 when the corresponding insulating wearable device is not broken down.
[0057] In some embodiments, the water tank 1 includes a tank body 11, a first insulating terminal 12 and a second insulating terminal 13, the first insulating terminal 12 is arranged at the first end of the tank body 11, the second insulating terminal 13 is arranged at the second end of the tank body 11, and the insulating bracket 4 is arranged on the first insulating terminal 12 and the second insulating terminal 13.
[0058] like Figure 1 As shown, the water tank 1 includes a tank body 11, a first insulating terminal 12 and a second insulating terminal 13. The first insulating terminal 12 is provided at the left end of the tank body 11, and the second insulating terminal 13 is provided at the right end of the tank body 11. The insulating bracket 4 is provided on the first insulating terminal 12 and the second insulating terminal 13, and preferably, but not limited to, a bearing beam 412 is provided on the first insulating terminal 12 and the second insulating terminal 13.
[0059] More preferably, the bearing beam 412, the first insulating terminal 12 and the second insulating terminal 13 are each arranged in two along the front-to-back direction, the front bearing beam 412 is arranged on the front first insulating terminal 12 and the front second insulating terminal 13, and the rear bearing beam 412 is arranged on the rear first insulating terminal 12 and the rear second insulating terminal 13 to ensure that the insulating bracket 4 is stably connected.
[0060] In some embodiments, both the first insulating terminal 12 and the second insulating terminal 13 are detachably connected to the insulating bracket 4 .
[0061] like Figure 1 As shown, the load-bearing beam 412 is detachably connected to both the first insulating terminal 12 and the second insulating terminal 13 .
[0062] Before the insulation performance test device is tested, the load-bearing crossbeam 412 is arranged on the first insulation terminal 12 and the second insulation terminal 13 to install the insulation bracket 4 in place. After the insulation performance test device is tested, the load-bearing crossbeam 412 is removed from the first insulation terminal 12 and the second insulation terminal 13 to remove the insulation bracket 4. This facilitates the placement of the insulation performance test device.
[0063] In some embodiments, the insulating bracket 4 includes a bracket body 41, a first splicing piece 42 and a second splicing piece 43, the first splicing piece 42 is detachably connected to the first end of the bracket body 41, and the second splicing piece 43 is detachably connected to the second end of the bracket body 41. The insulating bracket 4 has a first position and a second position relative to the water tank 1. In the first position, the bracket body 41 connects the first splicing piece 42 and the second splicing piece 43, the first splicing piece 42 is carried on the first insulating terminal 12, and the second splicing piece 43 is carried on the second insulating terminal 13. In the second position, the first splicing piece 42 is detached from both the first insulating terminal 12 and the bracket body 41, the second splicing piece 43 is detached from both the second insulating terminal 13 and the bracket body 41, and the bracket body 41 is carried on the box body 11.
[0064] like Figure 1 As shown, the insulating bracket 4 includes a bracket body 41, a first splicing piece 42 and a second splicing piece 43. The bracket body 41 includes a joint beam 411 and a bearing beam 412. The left end of the bearing beam 412 is detachably connected to the first splicing piece 42, and the right end of the bearing beam 412 is detachably connected to the second splicing piece 43.
[0065] Before the insulation performance testing device is tested, the first splicing piece 42 and the second splicing piece 43 are both arranged on the bearing beam 412, and then the first splicing piece 42 is placed on the first insulating terminal 12, and the second splicing piece 43 is placed on the second insulating terminal 13, so that the bearing beam 412 is indirectly arranged on the first insulating terminal 12 and the second insulating terminal 13, so that the insulating bracket 4 is in the first position supported by the first insulating terminal 12 and the second insulating terminal 13, and the insulating wearable device can be tested at this time.
[0066] After the test of the insulation performance test device is completed, the first splicing piece 42 and the second splicing piece 43 are separated from the bearing crossbeam 412, and the bearing crossbeam 412 is removed from the first insulating terminal 12 and the second insulating terminal 13. The bearing crossbeam 412 is preferably, but not limited to, located between the first insulating terminal 12 and the second insulating terminal 13, and the bracket body 41 is placed on the box 11. The removed first splicing piece 42 and the second splicing piece 43 can be placed on the box 11 or on the control box 6. Thus, the insulation bracket 4 is placed in the second position placed on the box 11. At this time, the insulation performance test device has the same horizontal occupied area and a smaller occupied height relative to when the test is performed, so as to have a smaller occupied space, thereby facilitating the placement of the insulation performance test device.
[0067] It can be understood that the load-bearing beam is not limited to being detachably connected to both the first splicing piece and the second splicing piece. In other embodiments, the load-bearing beam is configured to be retractable in length. The load-bearing beam is extended to bear on the first insulating terminal and the second insulating terminal, and the load-bearing beam is shortened to be between the first insulating terminal and the second insulating terminal, thereby placing the bracket body on the box.
[0068] In some embodiments, the water tank 1 includes a box body 11 and an opener 14, the opener 14 is arranged in the box body 11, the insulating wearable equipment includes insulating gloves and insulating boots, the box body 11 is used to carry the insulating boots, and the opener 14 is used to set the insulating gloves and open the insulating gloves.
[0069] like Figure 1 As shown, a spreader 14 is disposed inside the box body 11 , and the spreader 14 is preferably, but not limited to, a cylinder made of metal.
[0070] The insulating wearable device includes insulating gloves and insulating boots. When the insulating performance test device is used, the insulating gloves are inserted into the cylinder from the opening at the top of the cylinder, and the open end of the insulating gloves is placed on the top of the cylinder to stretch the insulating gloves. Then, conductive media such as water, metal particles, metal balls, etc. are placed inside the insulating gloves, and the corresponding connection circuit 33 is inserted. The insulating boots are placed on the bottom surface of the box 11, and then conductive media such as water, metal particles, metal balls, etc. are placed inside the insulating boots, and the corresponding connection circuit 33 is inserted.
[0071] Preferably, the test circuits 3 are arranged in at least two rows spaced apart in the front-to-back direction, more preferably in two rows, each row of the test circuits 3 includes a plurality of test circuits 3 spaced apart in the left-to-right direction, and the joint beams 411 and the load-bearing beams 412 are arranged in two rows spaced apart in the front-to-back direction corresponding to the test circuits 3. A corresponding spreader 14 is provided below the front row of test circuits 3, so that the front row of test circuits 3 is used to test insulating gloves, and a spreader 14 is not provided below the rear row of test circuits 3, so that the rear row of test circuits 3 is used to test insulating boots, so that the insulation performance testing device can test multiple insulating gloves and multiple insulating boots at the same time.
[0072] It can be understood that the insulation performance testing device can also only test insulating boots or only test insulating gloves.
[0073] In some embodiments, the water tank 1 includes a box body 11, a plug (not shown in the figure) and a cover (not shown in the figure). The box body 11 is provided with a drain outlet (not shown in the figure). The plug is used to block the inner end of the drain outlet, and the cover is threadedly connected to the outer end of the drain outlet.
[0074] Specifically, the bottom of the box 11 is provided with a drain port penetrating the wall of the box 11, the inner end of the drain port is located on the inner wall of the box 11, the plug is detachably sealed at the inner end of the drain port, the outer end of the drain port is preferably but not limited to protruding from the outer wall of the box 11 and provided with an external thread, and the cover is provided with an internal thread matching the external thread, so that the cover is threadedly connected with the outer end of the drain port. Thus, the drain port is ensured to be closed by the cooperation of the plug and the cover, so as to avoid water leakage from the drain port during the test and affect the test results.
[0075] Furthermore, the box body 11 is made of metal, and a waterproof coating is provided at the weld of the box body 11 to prevent water leakage at the weld from affecting the test results.
[0076] In some embodiments, the voltage supply assembly 2 includes a withstand voltage tester 21 and a step-up transformer 22 , the withstand voltage tester 21 is connected to the step-up transformer 22 , and at least two test circuits 3 are connected in parallel to the step-up transformer 22 .
[0077] like Figure 1 As shown, the withstand voltage tester 21 , the step-up transformer 22 and the control box 6 are electrically connected in sequence, and at least two protection relays in the control box 6 are connected in parallel, so that at least two test circuits 3 are connected in parallel to the step-up transformer 22 .
[0078] The withstand voltage tester 21 is used to input the test value and test time of the voltage, and can monitor the actual value of the voltage and time the test time. After the withstand voltage tester 21 inputs the test value and test time of the voltage, it transmits a signal to the step-up transformer 22 so that the step-up transformer 22 outputs the voltage to at least two test circuits 3 in parallel. When the voltage is increased to the test value, the withstand voltage tester 21 starts timing. After the voltage maintains the test value to meet the test time, the test ends and the voltage drops. The next test is performed after the actual value of the voltage returns to zero. The test result of the corresponding insulation performance test device is obtained through the value of the display screen 7.
[0079] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0080] In addition, the terms "first" and "second" are only used for distinction, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0081] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0082] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0083] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0084] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.
Claims
1. An insulation performance testing device, characterized in that: include: A water tank (1), a pressure supply component (2), and at least two test circuits (3) connected in parallel to the pressure supply component (2); the water tank (1) is used to place an insulating wearable device; the test circuit (3) comprises a protection relay, a disconnection circuit (32), and a connection circuit (33) connected in sequence in a direction away from the pressure supply component (2); the protection relay has a movable joint (31) through which current can pass; the disconnection circuit (32) is connected between the movable joint (31) and a first end of the connection circuit (33); the second end of the connection circuit (33) is used to be arranged in a conductive medium inside the insulating wearable device; the movable joint (31) is triggered and moves when the insulating wearable device is broken down, so that the disconnection circuit (32) disconnects the first end of the movable joint (31) and the connection circuit (33).
2. The insulation performance testing device according to claim 1, characterized in that: The disconnecting circuit (32) can be broken under the action of tension, or the disconnecting circuit (32) is detachably connected to the movable joint (31), or the disconnecting circuit (32) is detachably connected to the first end of the connecting circuit (33).
3. The insulation performance testing device according to claim 1, characterized in that: It also comprises an insulating support (4), wherein the insulating support (4) is arranged on the water tank (1), and the test circuit (3) is arranged on the insulating support (4).
4. The insulation performance testing device according to claim 3, characterized in that: The invention also comprises a fixed joint (5) that can be energized, the fixed joint (5) being arranged on the insulating support (4), the fixed joint (5) being at least two arranged corresponding to the test circuit (3), the connecting circuit (33) and the protective relay being arranged on the insulating support (4), the first end of the connecting circuit (33) being connected to the corresponding fixed joint (5), and the disconnecting circuit (32) being connected between the corresponding movable joint (31) and the corresponding fixed joint (5), so that the disconnecting circuit (32) is connected to the first end of the corresponding connecting circuit (33) through the corresponding fixed joint (5).
5. The insulation performance testing device according to claim 4, characterized in that: The device also comprises a control box (6) and a display screen (7), wherein the control box (6) is arranged on the top of the insulating support (4), the protective relay is arranged in the control box (6), and the movable joint (31) extends from the wall of the control box (6); the display screen (7) is arranged in the control box (6), and at least two of the display screens (7) are connected to the test circuit (3) in correspondence, and the display screen (7) is connected to the upstream of the corresponding protective relay, and the display screen (7) is used to display the current value of the corresponding test circuit (3) when the corresponding insulating wearable device is broken down.
6. The insulation performance testing device according to claim 3, characterized in that: The water tank (1) comprises a tank body (11), a first insulating terminal (12) and a second insulating terminal (13); the first insulating terminal (12) is arranged at a first end of the tank body (11), the second insulating terminal (13) is arranged at a second end of the tank body (11), and the insulating bracket (4) is arranged on the first insulating terminal (12) and the second insulating terminal (13).
7. The insulation performance testing device according to claim 6, characterized in that: The first insulating terminal (12) and the second insulating terminal (13) are both detachably connected to the insulating bracket (4).
8. The insulation performance testing device according to claim 7, characterized in that: The insulating bracket (4) comprises a bracket body (41), a first assembling piece (42) and a second assembling piece (43); the first assembling piece (42) is detachably connected to a first end of the bracket body (41); the second assembling piece (43) is detachably connected to a second end of the bracket body (41); the insulating bracket (4) has a first position and a second position relative to the water tank (1); in the first position, the bracket body (41) is connected to the first assembling piece (42) and the second assembling piece (43); the first assembling piece (42) is supported on the first insulating terminal (12); the second assembling piece (43) is supported on the second insulating terminal (13); in the second position, the first assembling piece (42) is detached from both the first insulating terminal (12) and the bracket body (41); the second assembling piece (43) is detached from both the second insulating terminal (13) and the bracket body (41); the bracket body (41) is supported on the tank body (11).
9. The insulation performance testing device according to claim 1, characterized in that: The water tank (1) comprises a box body (11) and an opener (14), wherein the opener (14) is arranged in the box body (11), the insulating wearable device comprises insulating gloves and insulating boots, the box body (11) is used to carry the insulating boots, and the opener (14) is used to set the insulating gloves and open the insulating gloves; and / or The water tank (1) comprises a tank body (11), a plug and a cover, the tank body (11) is provided with a drain outlet, the plug is used to plug the inner end of the drain outlet, and the cover is threadedly connected to the outer end of the drain outlet.
10. The insulation performance testing device according to claim 1, characterized in that: The voltage supply component (2) comprises a withstand voltage tester (21) and a step-up transformer (22); the withstand voltage tester (21) is connected to the step-up transformer (22); and the at least two test circuits (3) are connected in parallel to the step-up transformer (22).