Cable insulation test wiring device and cable test method

Abstract

This invention proposes a cable insulation testing wiring device and a cable testing method. The cable insulation testing wiring device of this invention includes: a wiring section having a wiring cavity and multiple wiring ports communicating with the wiring cavity, through which multiple conductors of the cable under test can be inserted into the wiring cavity; multiple metal connectors located within the wiring cavity, with a first end of each metal connector adjacent to its corresponding wiring port, and the first end of each metal connector can be connected to a conductor located within the wiring cavity; and a movable section having terminals conductive to the movable section, the terminals being used to connect to one of the positive and negative terminals of a testing instrument. The movable section is movable relative to the wiring section such that it can be selectively spaced from at least one of the multiple metal connectors and connected to the remaining portions of the multiple metal connectors. Therefore, the cable insulation testing wiring device according to this invention has the advantage of facilitating conductor testing.

Description

Technical Field

[0001] This invention relates to the field of cable testing technology, and specifically to a cable insulation testing wiring device and a cable testing method. Background Technology

[0002] The principle of insulation testing is to apply a DC voltage across the two ends of the medium being tested, detect the current flowing through the medium, and calculate the resistance between the mediums based on Ohm's law. The higher the resistance, the better the insulation.

[0003] In electrical secondary operations, insulation testing of secondary cables is a crucial task in secondary circuit inspection. Secondary cables are often multi-core, with some control cables having up to 24 cores. Testing the insulation performance of secondary cables typically involves testing the insulation to ground of each core (by applying voltage between the core and ground) and the insulation between cores (by applying voltage between the two cores being tested). While testing instruments are equipped with positive and negative test leads, these leads can only test the insulation of a single core. For example, with an 8-core cable, measuring the insulation to ground requires 8 measurements, and measuring the insulation between cores requires 32 measurements. This high number of measurements results in low efficiency. Furthermore, in practice, secondary cable insulation testing often requires disconnecting the cores from the terminal blocks, which can easily lead to confusion due to the large number of cores. Repeated pulling during insulation testing to ground can also loosen the ground connection, requiring remeasurement, further increasing the workload. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a cable insulation testing wiring device and a cable testing method.

[0005] The cable insulation testing wiring device of this invention includes:

[0006] The wiring section has a wiring cavity and multiple wiring ports communicating with the wiring cavity. Multiple cores of the cable under test can be inserted into the wiring cavity through the multiple wiring ports respectively.

[0007] Multiple metal connectors are located within the wiring cavity. Each metal connector corresponds to a specific wiring port. The first end of each metal connector is adjacent to its corresponding wiring port and can be connected to a wire core located within the wiring cavity.

[0008] The movable part has a terminal block on it, the terminal block is conductive to the movable part, the terminal block is used to connect to one of the positive and negative terminals of the tester, and the movable part is movable relative to the terminal block so that the movable part can be selectively spaced from at least one of the plurality of metal connectors and connected to the rest of the plurality of metal connectors.

[0009] Therefore, the cable insulation test wiring device according to the present invention has the advantage of facilitating the testing of wire cores.

[0010] In some embodiments, the movable portion has an inwardly recessed first groove, and the movable portion is movable relative to the wiring portion such that at least one of the plurality of metal connectors is located within the first groove and spaced apart from the wall of the first groove.

[0011] In some embodiments, the outer periphery of the wiring portion is circular, the axial direction of the wiring portion is a first direction, the wiring portion includes a first plate, a second plate and an outer ring plate, the first plate and the second plate are disposed opposite to each other in the first direction, the outer ring plate extends along the first direction, the outer ring plate is connected to the outer edge of the first plate and the outer edge of the second plate and defines the wiring cavity, the wiring port passes through the first plate, and a plurality of wiring ports are disposed at intervals along the circumference of the wiring portion;

[0012] The movable part is disc-shaped and rotatably disposed inside the wiring part. The rotation axis of the movable part is the first direction. The first groove is formed on the outer peripheral surface of the movable part, and the terminal is disposed on one side of the movable part in the first direction.

[0013] In some embodiments, the metal connector is an elastic connecting piece capable of elastic deformation, the first end of the metal connector can abut against the wire core that passes through the terminal and extends into the terminal cavity, and the second end of the metal connector can abut against the outer peripheral surface of the moving part.

[0014] In some embodiments, the first end of each metal connector includes a bent piece, and the wiring portion is provided with a plurality of wiring rods that can move radially therefrom. The plurality of wiring rods correspond one-to-one with the plurality of metal connectors. The wiring rods can drive the bent piece that cooperates with them to move so that the bent piece has a first moving position and a second moving position. In the first moving position, the core of the cable under test can pass through the wiring port and extend into the wiring cavity. In the second moving position, the bent piece can abut against the core located in the wiring cavity.

[0015] In some embodiments, a plurality of spaced conductive posts are provided on the outer peripheral surface of the movable part. The conductive posts are conductive to the movable part. The second end of the metal connector is elastically deformable. The plurality of conductive posts can abut against at least one of the plurality of metal connectors in the circumferential direction of the movable part.

[0016] In some embodiments, the movable part is provided with a pointer located outside the wiring cavity, the pointer extends radially along the movable part, and the pointer points in the same direction as the opening of the first groove.

[0017] In some embodiments, the pointer is provided with a snap-fit ​​component, and the wiring portion is provided with a plurality of slots that can cooperate with the snap-fit ​​component. The plurality of slots are arranged circumferentially along the wiring portion, and the plurality of slots correspond one-to-one with the plurality of wiring ports.

[0018] In some embodiments, the number of the connection ports is one of 8, 9, 12, 13, 16, 17, 24, 25, 36, and 37.

[0019] The wiring section is provided with an identifier to distinguish each of the wiring ports;

[0020] The movable part is movable relative to the wiring part so that the movable part can be selectively spaced apart from one of the metal connectors.

[0021] The present invention also proposes a cable testing method using the above-mentioned cable insulation testing wiring device, comprising the following steps:

[0022] S1. Connect one end of each of the multiple cores of the cable to the multiple terminals of the cable insulation test wiring device, and connect one end of each of the multiple cores to the metal connector of the cable insulation test wiring device.

[0023] S2. Connect the negative terminal of the tester to the terminal of the cable insulation test wiring device;

[0024] S3. Insert the positive terminal of the tester into the terminal block where the wire core to be tested is located so that the positive terminal of the tester is connected to the wire core to be tested. Move the moving part so that the moving part is spaced apart from the wire core to be tested and connected to the remaining parts of the multiple wire cores. Start the tester.

[0025] S4. Ground the negative terminal of the tester, insert the positive terminal of the tester into the terminal block where the wire core to be tested is located so that the positive terminal of the tester is connected to the wire core to be tested, move the moving part so that the moving part is connected to each of the plurality of wire cores, and start the tester.

[0026] Implement at least one of steps S3 and S4. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a cable insulation test wiring device according to an embodiment of the present invention.

[0028] Figure 2 This is a half-sectional schematic diagram of a cable insulation test wiring device according to an embodiment of the present invention.

[0029] Figure 3 This is an internal schematic diagram of a cable insulation test wiring device according to an embodiment of the present invention.

[0030] Figure 4 This is a side view of a cable insulation test wiring device according to an embodiment of the present invention.

[0031] Figure 5 This is a schematic diagram of the moving part according to an embodiment of the present invention.

[0032] Figure 6 This is a schematic diagram of a connecting rod according to an embodiment of the present invention.

[0033] Figure label:

[0034] Cable insulation test wiring device 100;

[0035] Wiring part 1, wiring cavity 11, wiring port 12, first plate 13, second plate 14, outer ring plate 15;

[0036] Metal connector 2, first end 21, second end 22, bent piece 23;

[0037] Moving part 3, terminal 31, first groove 32, conductive post 33;

[0038] Pointer 4, connector 41, card slot 42;

[0039] Connection rod 5, button 51, limit block 52. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0041] The cable insulation testing wiring device 100 of an embodiment of the present invention will now be described with reference to the accompanying drawings. Figures 1 to 6 As shown, the cable insulation test wiring device 100 according to an embodiment of the present invention includes a wiring part 1, a plurality of metal connectors 2 and a moving part 3.

[0042] The wiring section 1 has a wiring cavity 11 and multiple wiring ports 12 communicating with the wiring cavity 11. Multiple cores of the cable under test can be inserted into the wiring cavity 11 through the multiple wiring ports 12 respectively. Multiple metal connectors 2 are located in the wiring cavity 11, and the multiple metal connectors 2 correspond one-to-one with the multiple wiring ports 12. The first end 21 of the metal connector 2 is adjacent to its corresponding wiring port 12, and the first end 21 of the metal connector 2 can be connected to the (corresponding) core located in the wiring cavity 11.

[0043] The movable part 3 is provided with a terminal 31, which is conductive to the movable part 3. The terminal 31 is used to connect to one of the positive and negative terminals of the tester. The movable part 3 can move relative to the terminal part 1 so that the movable part 3 can be selectively arranged at intervals with at least one of the plurality of metal connectors 2 and connected to the rest of the plurality of metal connectors 2.

[0044] According to an embodiment of the present invention, the cable insulation test wiring device 100 has a wiring section 1 with multiple wiring ports 12. Multiple cores of the cable can be inserted into different wiring ports 12 respectively, and the cores inserted into the wiring cavity 11 through the multiple wiring ports 12 can be connected to the metal connector 2 so that the metal connector 2 is electrically connected to the corresponding core, that is, connected to one end of multiple cores of the cable at one time through the wiring section 1.

[0045] The movable part 3 is provided with a terminal 31, which is electrically conductive to the movable part 3. The terminal 31 is used to connect to one of the positive and negative terminals of the tester. In other words, the terminal 31 can be electrically connected to the tester so that the tester can be electrically connected to the movable part 3.

[0046] Furthermore, the movable part 3 can move relative to the wiring part 1 so that the movable part 3 can be selectively spaced from at least one of the plurality of metal connectors 2 and connected to the remaining portions of the plurality of metal connectors 2. That is, the movable part 3 can be electrically connected to the first portion of the metal connectors 2 and spaced from the remaining second portion of the metal connectors 2, so that the tester is electrically connected to the first portion of the metal connectors 2, but not to the remaining second portion of the metal connectors 2. Moreover, the first portion of the metal connectors 2 is selectable; that is, after the multiple cores of the cable inserted into the plurality of different wiring ports 12 and extending into the wiring cavity 11 are respectively connected to the plurality of metal connectors 2, the movable part 3 can selectively be electrically connected to the first portion of the metal connectors 2, so that the movable part 3 can selectively be electrically connected to at least a portion of the multiple cores of the cable, thereby allowing the tester to selectively be electrically connected to at least a portion of the multiple cores.

[0047] Therefore, when testing is required, both ends of each of the multiple wire cores are inserted into the connection ports 12 of the connection parts 1 of the cable insulation testing wiring device 100 according to the embodiment of the present invention, so that both ends of each of the multiple wire cores are connected to the metal connectors 2 in the two connection parts 1 respectively. The positive and negative terminals of the tester are connected to the terminals 31 of the moving parts 3 of the two cable insulation testing wiring devices 100 according to the embodiment of the present invention. Then, according to the test requirements, the moving parts 3 of the two cable insulation testing wiring devices 100 according to the embodiment of the present invention are moved so that the positive and negative terminals of the tester can be electrically connected to the required (partial or all) wire cores, and the positive and negative terminals of the tester can be de-electrically connected to some parts of the line by changing the position of the moving parts 3. Compared with the related art, which requires disassembling and assembling wire cores for each test, the cable insulation testing wiring device 100 of the present invention can make the positive and negative terminals of the tester electrically connected to the corresponding wire cores by changing the position of the moving parts 3, thereby eliminating the need for multiple disassembly and assembly of wire cores, thereby improving test efficiency and facilitating the testing of wire cores.

[0048] Therefore, the cable insulation test wiring device 100 according to an embodiment of the present invention has the advantage of facilitating the testing of wire cores.

[0049] like Figures 1 to 6 As shown, the cable insulation test wiring device 100 according to an embodiment of the present invention includes a wiring part 1, a plurality of metal connectors 2 and a moving part 3.

[0050] The wiring section 1 has a wiring cavity 11 and a plurality of wiring ports 12 communicating with the wiring cavity 11. The multiple cores of the cable under test can be inserted into the wiring cavity 11 through the plurality of wiring ports 12 respectively. For example, the wiring section 1 is made of a lightweight insulating material.

[0051] like Figures 1 to 4 As shown, in some embodiments, the outer periphery of the wiring portion 1 is circular, and the axial direction of the wiring portion 1 is a first direction. The wiring portion 1 includes a first plate 13, a second plate 14, and an outer ring plate 15. The first plate 13 and the second plate 14 are disposed opposite to each other in the first direction. The outer ring plate 15 extends along the first direction and is connected to the outer edge of the first plate 13 and the outer edge of the second plate 14, defining a wiring cavity 11. A wiring port 12 penetrates the first plate 13. Specifically, the wiring portion 1 is disc-shaped, and multiple wiring ports 12 are spaced apart circumferentially along the wiring portion 1 and adjacent to the outer ring plate 15 in the inward and outward directions. The first direction can be a vertical direction, such as... Figure 4 As indicated by the arrows in the diagram. For example, the first plate 13 is located above the second plate 14, and the wiring port 12 extends through the first plate 13 in the vertical direction. The wiring port 12 is adjacent to the outer ring plate 15 in the radial direction of the wiring portion 1. Each of the first plate 13 and the second plate 14 is an annular plate or a circular plate.

[0052] like Figure 2 and Figure 3 As shown, multiple metal connectors 2 are located within the wiring cavity 11, each corresponding to a specific wiring port 12. The first end 21 of each metal connector 2 is adjacent to its corresponding wiring port 12, and can be connected to the wire core located within the wiring cavity 11. Specifically, the first end 21 of the metal connector 2 is the end adjacent to the outer ring plate 15. The metal connector 2 can conduct electricity with the wire core. For example, the metal connectors 2 are fixed within the wiring cavity 11 by a fixing bracket. The number of metal connectors 2 is the same as the number of wiring ports 12, and the metal connectors 2 correspond to their respective wiring ports 12 in the circumferential direction. The first end 21 of the metal connector 2 faces the corresponding wiring port 12 in a first direction.

[0053] In some embodiments, the metal connector 2 is an elastic connecting piece that can undergo elastic deformation. The first end 21 of the metal connector 2 can abut against the wire core that passes through the terminal 12 and extends into the terminal cavity 11, thereby facilitating the connection between the wire core and the metal connector 2.

[0054] like Figure 2 and Figure 3 As shown, in some embodiments, the first end 21 of each metal connector 2 includes a bent piece 23, and the wiring portion 1 is provided with a plurality of wiring rods 5 that can move radially therein. The plurality of wiring rods 5 correspond one-to-one with the plurality of metal connectors 2. The wiring rods 5 can drive the bent piece 23 that cooperates with them to move so that the bent piece 23 has a first moving position and a second moving position. In the first moving position, the wire core of the cable under test can pass through the wiring port 12 and extend into the wiring cavity 11. In the second moving position, the bent piece 23 can abut against the wire core located in the wiring cavity 11.

[0055] Specifically, the first moving position is located inside the second moving position, and the bending piece 23 moves inward so that at least a portion of the bending piece 23 moves from the second moving position to the first moving position. The connecting rod 5 extends radially along the connecting portion 1 and is movably disposed on the outer ring plate 15 along the radial direction of the connecting portion 1. The outer end of the connecting rod 5 is provided with a button 51 located outside the connecting cavity 11. The middle and inner ends of the connecting rod 5 are located inside the connecting cavity 11. The middle of the connecting rod 5 is provided with a limiting block 52. The inner end of the connecting rod 5 abuts against the outer side of the bending piece 23 (the side facing the outer ring plate 15). The bending piece 23 presses the limiting block 52 of the connecting rod 5 against the inner wall of the outer ring plate 15. Pressing the button 51 can move the connecting rod 5 inward so that at least part of the bending piece 23 can be moved from the second moving position to the first moving position. After the position is cleared, the wire core can be inserted into the connecting cavity 11. After releasing the button 51, the bending piece 23 springs back and moves from the first moving position to the second moving position and abuts against the wire core, so that the bending piece 23 and the wire core have good contact.

[0056] like Figures 1 to 5 As shown, the movable part 3 is provided with a terminal 31, which is electrically conductive to the movable part 3 and is used to connect to one of the positive and negative terminals of the tester. The movable part 3 can move relative to the wiring part 1 so that the movable part 3 can be selectively spaced from at least one of the plurality of metal connectors 2 and connected to the remaining parts of the plurality of metal connectors 2. Specifically, the second end 22 of the metal connector 2 can abut against the outer peripheral surface of the movable part 3, and the second end 22 of the metal connector 2 is the end away from the outer ring plate 15, that is, the second end 22 of the metal connector 2 is the inner end in the inward and outward direction of the wiring part 1. For example, the terminal 31 is made of copper, and the movable part 3 and the terminal 31 are electrically connected by a copper brush.

[0057] In some implementations, the movable part 3 has an inwardly recessed first groove 32, and the movable part 3 is movable relative to the wiring part 1 such that at least one of the plurality of metal connectors 2 is located within the first groove 32 and spaced apart from the wall of the first groove 32. That is, the position of the movable part 3 is changed so that the corresponding metal connector 2 (second end 22) is located within the first groove 32 so that the corresponding metal connector 2 does not abut against the outer peripheral surface of the movable part 3.

[0058] like Figure 5 As shown, in some embodiments, the movable part 3 is disc-shaped and rotatably disposed inside the wiring part 1. The rotation axis of the movable part 3 is a first direction. A first groove 32 is formed along the outer peripheral surface of the movable part 3, and a terminal 31 is disposed at the axial position on one side of the movable part 3 in the first direction. Specifically, the movable part 3 can be located inside the wiring cavity 11 (located inside the wiring part 1), and the terminal 31 can extend through the movable part 3 (second plate 14) to the outside. The axial position of the movable part 3 is consistent with the axial position of the wiring part 1. The first groove 32 penetrates the movable part 3 along the first direction. During the rotation of the movable part 3, the orientation of the first groove 32 on the outer peripheral surface of the movable part 3 changes accordingly, that is, the position of the first groove 32 in the circumferential direction can be changed. By changing the position of the first groove 32 in the circumferential direction, the movable part 3 is not electrically connected to the metal connector 2 (electrically) extending into the first groove 32, and thus the movable part 3 is not electrically connected to the wire core in the wiring port 12 facing upwards from the first groove 32. For example, the first groove 32 extends through the moving part 3 in the vertical direction. The second end 22 of the metal connector 2 is an elastic copper brush. This allows the metal connector 2 to reliably contact the moving part 3, and ensures that the first groove 32 can smoothly slide past the second end 22 of each metal connector 2 when the moving part 3 rotates.

[0059] In some embodiments, the movable part 3 may be movable relative to the wiring part 1 so that the movable part 3 may be selectively spaced from a metal connector 2. Specifically, rotating the movable part 3 may cause a metal connector 2 to extend into the first groove 32 and be spaced apart from the wall of the first groove 32.

[0060] like Figure 3 As shown, in some embodiments, the outer peripheral surface of the moving part 3 is provided with a plurality of spaced conductive posts 33. The conductive posts 33 are conductive to the moving part 3, and the second end 22 of the metal connector 2 can undergo elastic deformation. The plurality of conductive posts 33 can abut against at least one of the plurality of metal connectors 2 in the circumferential direction of the moving part 3. Thus, during the rotation of the moving part 3, the second end 22 of the metal connector 2 and the moving part 3 are securely connected through the conductive posts 33. For example, the number of conductive posts 33 is one less than the number of terminals 12 (metal connectors 2).

[0061] like Figure 1 and Figure 4 As shown, in some embodiments, the movable part 3 is provided with a pointer 4, which is located outside the wiring cavity 11. The pointer 4 extends radially along the movable part 3, and its direction is consistent with the opening direction (circumferentially) of the first groove 32. Specifically, the pointer 4 can rotate with the movable part 3. During the rotation of the movable part 3, the pointer 4 rotates and points to the corresponding wiring port 12, so that the tester can know that the metal connector 2 at the position pointed to by the pointer 4 is located in the first groove 32, that is, the wire core in that direction is not electrically connected to the movable part 3. For example, the pointer 4 is located outside the wiring part 1 and is slidably connected to the first plate 13. For example, the pointer 4 is made of a lightweight insulating material and is integrally installed with the protrusion on the movable part 3.

[0062] In some embodiments, the pointer 4 is provided with a snap-fit ​​member 41, and the wiring portion 1 is provided with a plurality of snap-fit ​​slots 42 that can cooperate with the snap-fit ​​member 41. The plurality of snap-fit ​​slots 42 are arranged circumferentially along the wiring portion 1, and the plurality of snap-fit ​​slots 42 correspond one-to-one with a plurality of wiring ports 12 (in the circumferential direction). Specifically, the snap-fit ​​member 41 is a plate body that extends radially along the moving portion 3 on the side of the pointer 4 facing the first plate body 13. The snap-fit ​​slots 42 are located on the outside of the wiring portion 1 (first plate body 13), and the snap-fit ​​slots 42 are composed of a plate body with bends. The opening of the snap-fit ​​slots 42 faces the axial position of the wiring portion 1. When the pointer 4 faces the corresponding wiring port 12, the snap-fit ​​member 41 enters into the snap-fit ​​slot 42 so that the snap-fit ​​member 41 is limited by the snap-fit ​​slot 42, thereby limiting the pointer 4, so that the corresponding metal connector 2 is located in the first groove 32, and the remaining metal connectors 2 are connected to the moving portion 3. For example, the plate body constituting the snap-fit ​​slot 32 is an elastic member.

[0063] In some embodiments, the number of connection ports 12 is one of 8, 9, 12, 13, 16, 17, 24, 25, 36, and 37. For example, the number of connection ports 12 is 9.

[0064] In some embodiments, the wiring portion 1 is provided with a label to distinguish each wiring port 12. This label can be a number or a letter. For example, the nine wiring ports 12 are sequentially labeled 0, 1, 2…7, 8. When the cable includes eight wire cores, the eight wire cores can be inserted into the wiring ports 12 labeled 1 to 8 respectively. When the pointer 4 (first groove 32) points towards the wiring port 12 labeled 0, the moving part 3 (electrode of the tester) is electrically connected to the eight wire cores. When the pointer 4 (first groove 32) sequentially points towards the wiring ports 12 labeled 1 to 8, the moving part 3 (electrode of the tester) sequentially disconnects from the wire cores in the wiring ports 12 labeled 1 to 8, and the moving part 3 (electrode of the tester) is electrically connected to the remaining wire cores.

[0065] The present invention also proposes a cable testing method using a cable insulation testing wiring device 100 according to an embodiment of the present invention, comprising the following steps:

[0066] In step S1, one end of each of the multiple cores of the cable is connected (one by one) to one of the multiple terminals 12 of the cable insulation testing wiring device 100, such that each of the multiple cores is connected to the metal connector 2 of the cable insulation testing wiring device. That is, during testing, the cable insulation testing wiring device 100 needs to be connected to one end of each of the multiple cores, and the terminal 12 to which each core is inserted is marked differently. For example, if there are 8 cores, the terminal 12 to which one end of core 1 is inserted is marked as 1, and the terminal 12 to which one end of core 8 is inserted is marked as 8.

[0067] In step S2, the negative terminal of the tester is connected to the terminal 31 of the cable insulation test wiring device 100. This electrically connects the negative terminal of the tester to the movable part 3 of the cable insulation test wiring device 100.

[0068] In step S3, the positive terminal of the tester is inserted into the terminal 12 where the core to be tested is located so that the positive terminal of the tester is connected to the core to be tested. The moving part 3 is moved so that it is spaced apart from the core to be tested and connected to the remaining parts of the multiple cores. The tester is then started. For example, when testing core 1, the positive terminal of the tester is inserted into the terminal 12 marked 1 so that the positive terminal of the tester is connected to core 1. The moving part 3 is moved so that it is spaced apart from core 1 and connected to cores 2 to 8. After starting the tester and applying DC voltage, the insulation test between core 1 and the remaining 7 cores can be completed. When the pointer 4 (first groove 32) of the moving part 3 is sequentially aligned with the terminal 12 marked 2 to 8, the positive terminal of the tester is inserted into the corresponding terminal 12, and the insulation test of cores 2 to 8 can be completed sequentially.

[0069] In step S4, the negative terminal of the tester is grounded, and the positive terminal of the tester is inserted into the terminal 12 where the core to be tested is located so that the positive terminal of the tester is connected to the core to be tested. The moving part 3 is moved so that the moving part 3 is connected to each of the multiple cores, and the tester is started. Specifically, after the negative terminal of the tester is grounded, the negative terminal can be connected to the earth. When the pointer 4 (first groove 32) of the moving part 3 is sequentially oriented toward the terminal 12 marked 0, each of the cores 1 to 8 is connected to the negative terminal (earth) of the tester, that is, each of the multiple cores is connected to the earth. After inserting the positive terminal of the tester into the terminal 12 where the core to be tested is located, the test button of the tester is pressed to apply a DC voltage to the two ends of the core to be tested and the earth, so as to complete the insulation test of the core to be tested to ground. The positive terminal of the tester is inserted into the corresponding terminal 12 of the cores 2 to 8 one by one, so as to complete the insulation test of the cores 2 to 8 sequentially.

[0070] Perform at least one of steps S3 and S4 so that the required tests can be performed using two cable insulation test wiring devices 100.

[0071] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0073] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0074] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0075] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A cable insulation test wiring device, characterized by The application relates to a cable insulation test connecting device, which comprises: a connecting part provided with a connecting cavity and a plurality of connecting ports in communication with the connecting cavity, a plurality of wire cores of a cable to be tested being capable of being inserted into the connecting cavity through the connecting ports respectively; a plurality of metal connecting pieces arranged in the connecting cavity, the metal connecting pieces corresponding to the connecting ports one by one, a first end of the metal connecting piece being adjacent to the corresponding connecting port, and the first end of the metal connecting piece being capable of being connected with a wire core arranged in the connecting cavity; a moving part provided with a connecting column, the connecting column being electrically connected with the moving part, the connecting column being used for being connected with one of positive and negative poles of a tester, and the moving part being capable of moving relative to the connecting part so as to be selectively spaced apart from at least one of the metal connecting pieces and connected with the rest of the metal connecting pieces; the moving part being provided with a first recess recessed inwardly, and the moving part being capable of moving relative to the connecting part so that at least one of the metal connecting pieces is arranged in the first recess and is spaced apart from a wall surface of the first recess; the moving part being disc-shaped, the moving part being rotatably arranged on an inner side of the connecting part, the first recess penetrating through the moving part along a first direction, an axial direction of the connecting part being the first direction, and the first recess on an outer circumferential surface of the moving part changing in orientation during rotation of the moving part, the first recess being electrically disconnected with the metal connecting piece inserted into the first recess by changing a position of the first recess in a circumferential direction, so that the moving part is electrically disconnected with the wire core in the connecting port in the orientation of the first recess.

2. The cable insulation test connecting device according to claim 1, wherein an outer circumferential contour of the connecting part is circular, the connecting part comprising a first plate body, a second plate body and an outer ring plate, the first plate body and the second plate body being oppositely arranged in the first direction, the outer ring plate extending along the first direction, the outer ring plate being connected with outer edges of the first plate body and the second plate body and defining the connecting cavity, the connecting ports penetrating through the first plate body and being spaced apart in a circumferential direction of the connecting part; a rotation axis of the moving part is the first direction, the first recess being arranged on an outer circumferential surface of the moving part, and the connecting column being arranged on one side of the moving part in the first direction.

3. The cable insulation test connecting device according to claim 2, wherein the metal connecting piece is an elastic connecting piece capable of being elastically deformed, the first end of the metal connecting piece being capable of abutting against the wire core inserted through the connecting port and into the connecting cavity, and a second end of the metal connecting piece being capable of abutting against the outer circumferential surface of the moving part.

4. The cable insulation test wiring device of claim 3, wherein, The first end of each metal connector comprises a bending piece, the connecting part is provided with a plurality of connecting rods which are movable along the radial direction thereof, the plurality of connecting rods correspond to the plurality of metal connectors one by one, the connecting rod can drive the bending piece to move so that the bending piece has a first moving position and a second moving position, in the first moving position, the core of the cable to be tested can pass through the connecting port and extend into the connecting cavity, in the second moving position, the bending piece can abut against the core in the connecting cavity.

5. The cable insulation test wiring device of claim 4, wherein, The outer circumferential surface of the moving part is provided with a plurality of spaced conductive columns, the conductive columns are electrically conductive with the moving part, the second end of the metal connector can be elastically deformed, and the plurality of conductive columns can abut against at least one of the plurality of metal connectors in the circumferential direction of the moving part.

6. The cable insulation test wiring device of claim 1, wherein, The moving part is provided with a pointer, the pointer is located outside the connecting cavity, the pointer extends along the radial direction of the moving part, and the pointing direction of the pointer is consistent with the opening direction of the first groove.

7. The cable insulation test wiring device of claim 6, wherein, The pointer is provided with a clamping piece, the connecting part is provided with a plurality of clamping grooves which can cooperate with the clamping piece, the plurality of clamping grooves are arranged in the circumferential direction of the connecting part, and the plurality of clamping grooves correspond to the plurality of connecting ports one by one.

8. The cable insulation test connecting device according to any one of claims 1-7, characterized in that, the number of connecting ports is one of 8, 9, 12, 13, 16, 17, 24, 25, 36 and 37; the connecting part is provided with an identification which distinguishes each connecting port; the moving part can move relative to the connecting part so that the moving part is selectively spaced apart from one metal connector.

9. A method of testing a cable using the cable insulation testing device of any one of claims 1-8, wherein, The steps include: S1, one end of each of a plurality of cores of a cable is respectively connected to a plurality of connecting ports of a cable insulation test connecting device, and the one end of each of the plurality of cores is connected to a metal connector of the cable insulation test connecting device; S2, the negative electrode of a tester is connected to the connecting column of the cable insulation test connecting device; S3, the positive electrode of the tester is inserted into the connecting port where the core to be tested is located so that the positive electrode of the tester is connected to the core to be tested, the moving part is moved so that the moving part is spaced apart from the core to be tested and connected to the remaining part of the plurality of cores, and the tester is started; S4, the positive electrode of the tester is inserted into the connecting port where the core to be tested is located so that the positive electrode of the tester is connected to the core to be tested, the moving part is moved so that the moving part is connected to each of the plurality of cores, and the tester is started; At least one of steps S3 and S4 is implemented.

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