Creepage distance test equipment

Abstract

The creepage distance testing device comprises a bearing seat, a negative electrode, a positive electrode and a linear module, the bearing seat is provided with a first containing cavity used for containing an insulating plate, the negative electrode is arranged below the first containing cavity and abuts against a first position of the insulating plate, and the linear module is arranged above the first containing cavity and abuts against a second position of the insulating plate. The device comprises a Z-axis sliding table, a connecting block, an X-axis sliding table, a limiting block and a digital micrometer, the connecting block is connected with the moving end of the Z-axis sliding table and the fixed end of the X-axis sliding table, the Z-axis sliding table is used for driving the positive electrode to abut against the insulating plate, the moving end of the X-axis sliding table and the positive electrode, the limiting block is connected with the connecting block and the digital micrometer, the telescopic end of the digital micrometer is connected with the moving end of the X-axis sliding table, and the telescopic end of the X-axis sliding table is connected with the fixed end of the X-axis sliding table. According to the utility model, the position of the negative electrode is fixed, and the digital display micrometer and the X-axis sliding table are combined for use, so that the position of the positive electrode is accurately measured in real time, manual marking and measurement are not needed, and the testing efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating material testing, in particular to a creepage distance testing device. Background Art

[0002] The creepage distance refers to the shortest distance along the surface of the insulating material between two conductive components, and it is an important parameter to ensure electrical safety. When the distance between the positive and negative poles is less than the creepage distance, especially in a high-voltage or humid and contaminated environment, a conductive channel is likely to form on the surface of the insulating material, causing the current to flow along the insulating surface, resulting in the creepage phenomenon, damaging the insulation performance of the insulating material, gradually losing its original insulation effect, and triggering electrical faults.

[0003] Therefore, it is very important to determine the creepage distance. In the prior art, the insulating board is usually placed on the test platform, the position of the test electrode is adjusted manually, a voltage is applied between the electrodes, and it is observed and recorded whether the creepage phenomenon occurs. If the creepage phenomenon occurs, the positions of the positive and negative poles at this time are marked and measured with a ruler, and the test efficiency is low.

[0004] Therefore, it is necessary to improve the prior art.

[0005] The above information is given as background information only to assist in understanding the present disclosure, and it is not determined or admitted whether any of the above content can be used as the prior art relative to the present disclosure. Summary of the Utility Model

[0006] The utility model provides a creepage distance testing device to solve the problem that the existing testing device cannot accurately measure the creepage distance of the insulating material under the condition of non-uniform electric field.

[0007] To achieve the above object, the utility model provides the following technical solutions:

[0008] A creepage distance testing device includes a supporting seat, a negative electrode, a positive electrode and a linear module. The supporting seat is provided with a first accommodating cavity for accommodating an insulating board. The negative electrode is arranged below the first accommodating cavity and abuts against the first position of the insulating board. The linear module is arranged above the first accommodating cavity and includes a Z-axis slide, a connecting block, an X-axis slide, a limiting block and a digital display micrometer. The connecting block connects the moving end of the Z-axis slide and the fixed end of the X-axis slide. The Z-axis slide is used to drive the positive electrode to abut against the insulating board. The moving end of the X-axis slide and the positive electrode, the limiting block connects the connecting block and the digital display micrometer, and the telescopic end of the digital display micrometer connects the moving end of the X-axis slide for adjusting the abutting position of the positive electrode and the insulating board.

[0009] Preferably, the supporting base further includes a second accommodation cavity for accommodating the negative electrode. The second accommodation cavity communicates with the first accommodation cavity. The size of the first accommodation cavity is the same as that of the insulating plate, and the size of the second accommodation cavity is the same as that of the negative electrode.

[0010] Preferably, the creepage distance testing device further includes a base, a first stopper, and a second stopper. The base connects the supporting base and the first stopper. The first stopper connects to the fixed end of the Z-axis slide. The second stopper connects to the moving end of the Z-axis slide. When the moving end of the Z-axis slide drives the second stopper to abut against the first stopper, the positive electrode abuts against the insulating plate.

[0011] Preferably, a guiding post is further connected to the supporting base. A guiding hole is provided at a position corresponding to the guiding post on the connecting block. The diameter of the guiding hole matches the diameter of the guiding post.

[0012] Preferably, the supporting base is further provided with an avoidance groove. The bottom of the avoidance groove is on the same horizontal plane as the bottom of the first accommodation cavity.

[0013] Preferably, the creepage distance testing device further includes a withstand voltage tester. The base includes a first support plate, a second support plate, and a connecting column. The two ends of the connecting column are respectively connected to the first support plate and the second support plate, forming an accommodation cavity. The withstand voltage tester is limited in the accommodation cavity and is electrically connected to the positive electrode and the negative electrode to provide a preset voltage for the positive electrode and the negative electrode.

[0014] Preferably, the supporting base is provided with a first opening communicating with the second accommodation cavity. The first support plate is provided with a second opening corresponding to the first opening. A wire connected to the grounding port of the withstand voltage tester is connected to the negative electrode through the first opening and the second opening. The positive electrode is connected to the high-voltage port of the withstand voltage tester through a wire.

[0015] Preferably, the creepage distance testing device further includes an audible and visual alarm. The audible and visual alarm is arranged between the high-voltage port and the positive electrode. The wire connects the high-voltage port, the positive electrode, and the audible and visual alarm.

[0016] Preferably, the creepage distance testing device further includes a material-gripping manipulator. The manipulator is used to grip the insulating plate and place it in the first accommodation cavity.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] The creepage distance testing device provided by the utility model includes a supporting seat, a negative electrode, a positive electrode and a linear module. The supporting seat is provided with a first accommodating cavity for accommodating an insulating plate. The negative electrode is arranged below the first accommodating cavity and abuts against the first position of the insulating plate. The linear module is arranged above the first accommodating cavity and includes a Z-axis slide, a connecting block, an X-axis slide, a limiting block and a digital display micrometer. The connecting block connects the moving end of the Z-axis slide and the fixed end of the X-axis slide. The Z-axis slide is used to drive the positive electrode to abut against the insulating plate. The moving end of the X-axis slide and the positive electrode, the limiting block connects the connecting block and the digital display micrometer, and the telescopic end of the digital display micrometer connects the moving end of the X-axis slide for adjusting the abutting position of the positive electrode and the insulating plate. The position of the negative electrode of the utility model is fixed. By using the digital display micrometer in combination with the X-axis slide, the real-time and accurate measurement of the position of the positive electrode is realized. The digital display micrometer can directly display the specific position of the positive electrode on the insulating plate without manual marking and measurement. Compared with the prior art, its testing efficiency is greatly improved. When the positive electrode moves in the direction close to the negative electrode and reaches the second position, the positive electrode and the negative electrode are conducted, and the distance between the positive electrode and the negative electrode along the surface of the insulating plate is the creepage distance.

[0019] The utility model has other characteristics and advantages, which will be obvious from the accompanying drawings incorporated herein and the subsequent detailed description, or will be described in detail in the accompanying drawings incorporated herein and the subsequent detailed description. These accompanying drawings and detailed description are used together to explain the specific principles of the utility model. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is a schematic structural diagram of the creepage distance testing device of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the supporting seat of the present utility model.

[0023] Reference Numerals:

[0024] 1. Second support plate; 2. Connecting column; 3. First support plate; 4. Supporting seat; 5. First stop block; 6. Second stop block; 7. Z-axis slide; 8. Connecting block; 9. X-axis slide; 10. Positive electrode; 11. Guide post; 12. Avoidance groove; 13. First opening. Detailed Description of the Embodiments

[0025] In order to make the objectives, features, and advantages of the present utility model more obvious and understandable, the following will describe the technical solutions in the embodiments of the present utility model clearly and completely in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component set at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component set at the same time.

[0027] In addition, terms such as "long", "short", "inner", "outer", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model, rather than indicating or implying that the device or component referred to must have this specific orientation and be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation of the present utility model.

[0028] The following further illustrates the technical solutions of the present utility model in conjunction with the accompanying drawings and through specific implementation manners.

[0029] Please refer to Figure 1 - Figure 2 , the present utility model designs a creepage distance testing device, which includes a supporting seat 4, a negative electrode, a positive electrode 10, and a linear module. The supporting seat 4 is provided with a first accommodating cavity for accommodating an insulating plate. The negative electrode is arranged below the first accommodating cavity and abuts against the first position of the insulating plate. The linear module is arranged above the first accommodating cavity and includes a Z-axis slide 7, a connecting block 8, an X-axis slide 9, a limiting block, and a digital display micrometer. The connecting block 8 connects the moving end of the Z-axis slide 7 and the fixed end of the X-axis slide 9. The Z-axis slide 7 is used to drive the positive electrode 10 to abut against the insulating plate. The moving end of the X-axis slide 9 and the positive electrode 10, the limiting block connects the connecting block 8 and the digital display micrometer. The telescopic end of the digital display micrometer connects the moving end of the X-axis slide 9 and is used to adjust the abutting position of the positive electrode 10 and the insulating plate.

[0030] The position of the negative electrode of the present utility model is fixed. By using the digital display micrometer in combination with the X-axis slide 9, the real-time precise measurement of the position of the positive electrode 10 is realized. The digital display micrometer can directly display the specific position of the positive electrode 10 on the insulating plate, without manual marking and measurement. Compared with the prior art, its test efficiency is greatly improved. When the positive electrode 10 moves in the direction close to the negative electrode, when the positive electrode 10 moves to the second position, the positive electrode 10 and the negative electrode are conducted, and the distance between the positive electrode 10 and the negative electrode along the surface of the insulating plate is the creepage distance.

[0031] Specifically, the supporting seat 4 also includes a second accommodating cavity for accommodating the negative electrode, the second accommodating cavity is communicated with the first accommodating cavity, the size of the first accommodating cavity is consistent with the size of the insulating plate, and the size of the second accommodating cavity is consistent with the size of the negative electrode.

[0032] The size of the first accommodating cavity is consistent with the size of the insulating plate, which ensures the stability of the insulating plate in the accommodating cavity and prevents the insulating plate from moving or tilting during the test. The size of the second accommodating cavity is consistent with the size of the negative electrode, ensuring that the negative electrode can be fully and tightly embedded therein, further improving the contact stability and conductivity between the negative electrode and the insulating plate.

[0033] Specifically, the creepage distance test equipment also includes a base, a first stop block 5 and a second stop block 6. The base is connected to the supporting seat 4 and the first stop block 5. The first stop block 5 is connected to the fixed end of the Z-axis slide 7. The second stop block 6 is connected to the movable end of the Z-axis slide 7. When the movable end of the Z-axis slide 7 drives the second stop block 6 to abut against the first stop block 5, the positive electrode 10 abuts against the insulating plate.

[0034] The utility model also includes an electric push rod, which is connected to the moving end of the Z-axis slide 7. When the electric push rod drives the second stop block 6 to abut against the first stop block 5, the positive electrode 10 just abuts against the insulating plate, thereby avoiding damage to the insulating plate caused by excessive movement.

[0035] Specifically, the support seat 4 is also connected to a guide column 11, and the connection block 8 is provided with a guide hole at a position corresponding to the guide column 11, and the diameter of the guide hole matches the diameter of the guide column 11. The connection block 8 can perform precise linear motion along the guide column 11 during the movement, thereby avoiding test errors caused by offset or shaking.

[0036] Specifically, the support seat 4 is further provided with an avoidance groove 12, and the groove bottom of the avoidance groove 12 is on the same horizontal plane as the groove bottom of the first accommodating cavity. The avoidance groove 12 provides an operating space for the tester to take the insulating board, and the tester can quickly place the insulating board in the first accommodating cavity or take the insulating board out of the first accommodating cavity through the avoidance groove 12.

[0037] Specifically, the creepage distance test equipment also includes a withstand voltage tester, and the base includes a first support plate 3, a second support plate 1 and a connecting column 2, the two ends of the connecting column 2 are respectively connected to the first support plate 3 and the second support plate 1 to form a accommodating cavity, and the withstand voltage tester is limited in the accommodating cavity and electrically connected to the positive electrode 10 and the negative electrode to provide a preset voltage for the positive electrode 10 and the negative electrode.

[0038] Specifically, the supporting base 4 is provided with a first opening 13 communicating with the second accommodating cavity. A second opening is provided at the position corresponding to the first opening 13 on the first support plate 3. The wire connected to the grounding port of the withstand voltage tester is connected to the negative electrode through the first opening 13 and the second opening, and the positive electrode 10 is connected to the high-voltage port of the withstand voltage tester through a wire.

[0039] The connecting column 2 forms an accommodating cavity between the first support plate 3 and the second support plate 1, providing sufficient installation space for the withstand voltage tester. The withstand voltage tester provides a preset voltage for the positive electrode 10 and the negative electrode to simulate the electric field environment under actual working conditions.

[0040] Specifically, the creepage distance test device further includes an audible and visual alarm. The audible and visual alarm is arranged between the high-voltage port and the positive electrode 10, and the wire connects the high-voltage port, the positive electrode 10 and the audible and visual alarm. When creepage occurs on the surface of the insulating material, resulting in current leakage, the audible and visual alarm will respond immediately.

[0041] Specifically, the creepage distance test device further includes a material-gripping manipulator. The manipulator is used to grip the insulating board and place it in the first accommodating cavity.

[0042] So far, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A creepage distance test device, characterized in that: It includes a supporting base, a negative electrode, a positive electrode and a linear module. The supporting base is provided with a first accommodating cavity for accommodating an insulating plate. The negative electrode is arranged below the first accommodating cavity and abuts against the first position of the insulating plate. The linear module is arranged above the first accommodating cavity and includes a Z-axis slide, a connecting block, an X-axis slide, a limiting block and a digital micrometer. The connecting block connects the moving end of the Z-axis slide and the fixed end of the X-axis slide. The Z-axis slide is used to drive the positive electrode to abut against the insulating plate. The moving end of the X-axis slide and the positive electrode. The limiting block connects the connecting block and the digital micrometer. The telescopic end of the digital micrometer connects the moving end of the X-axis slide and is used to adjust the abutting position of the positive electrode and the insulating plate.

2. The creepage distance test device according to claim 1, characterized in that: The supporting base further includes a second accommodating cavity for accommodating the negative electrode. The second accommodating cavity communicates with the first accommodating cavity. The size of the first accommodating cavity is the same as that of the insulating plate. The size of the second accommodating cavity is the same as that of the negative electrode.

3. The creepage distance testing device according to claim 2, wherein: It further includes a base, a first stop block and a second stop block. The base connects the supporting base and the first stop block. The first stop block connects the fixed end of the Z-axis slide. The second stop block connects the moving end of the Z-axis slide. When the moving end of the Z-axis slide drives to the second stop block to abut against the first stop block, the positive electrode abuts against the insulating plate.

4. The creepage distance testing device according to claim 1, wherein: A guiding column is further connected to the supporting base. A guiding hole is provided at the position of the connecting block corresponding to the guiding column. The diameter of the guiding hole matches the diameter of the guiding column.

5. The creepage distance testing device according to claim 1, characterized in that: The supporting base is further provided with an avoidance groove. The bottom of the avoidance groove is on the same horizontal plane as the bottom of the first accommodating cavity.

6. The creepage distance testing device according to claim 3, characterized in that: It further includes a withstand voltage tester. The base includes a first support plate, a second support plate and a connecting column. The two ends of the connecting column are respectively connected to the first support plate and the second support plate and form an accommodating cavity. The withstand voltage tester is limited in the accommodating cavity and is electrically connected to the positive electrode and the negative electrode to provide a preset voltage for the positive electrode and the negative electrode.

7. The creepage distance testing device according to claim 6, wherein: The supporting base is provided with a first opening communicating with the second accommodating cavity. The first support plate is provided with a second opening corresponding to the first opening. The wire connected to the grounding port of the withstand voltage tester passes through the first opening and the second opening to connect the negative electrode. The positive electrode is connected to the high-voltage port of the withstand voltage tester through a wire.

8. The creepage distance testing device according to claim 7, wherein: It further includes an audible and visual alarm. The audible and visual alarm is arranged between the high-voltage port and the positive electrode. The wire connects the high-voltage port, the positive electrode and the audible and visual alarm.

9. The creepage distance testing device according to claim 1, wherein: It further includes a material-gripping manipulator. The manipulator is used to grip the insulating plate and place it in the first accommodating cavity.

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