Insulating material withstand voltage test device

Abstract

The utility model discloses an insulating material withstand voltage test device, which belongs to the technical field of insulating material testing and comprises a hollow shell, insulating oil, a framework, an electric wire, a power supply and a test sample, the framework is detachably placed in the shell and comprises a bottom plate, a cover plate, a support column and two electrodes, and the electric wire is arranged on the support column. The two electrodes are coaxially arranged on the upper surface of the bottom plate and the lower surface of the cover plate respectively, the cover plate is coaxially arranged on the upper surface of the bottom plate, a supporting column is arranged between the lower surface of the cover plate and the upper surface of the bottom plate, a test sample is installed between the two electrodes, insulating oil is further placed in the shell, and the test sample is immersed in the insulating oil. And the two electrodes are electrically connected with the power supply through wires. The beneficial effects of the utility model are that the mutual cooperation of the housing and the insulating oil eliminates the influence of air on the test during the withstand voltage test, the insulating oil prevents external air and moisture from invading, and the housing plays a role in holding the insulating oil and isolating and protecting the skeleton.

Description

Technical Field

[0001] This utility model relates to the field of insulation material testing technology, and more specifically, to an insulation material withstand voltage test device. Background Technology

[0002] Insulating materials play a crucial role in insulation and isolation in various parts of the electrolytic cell. Using substandard insulating materials can pose a significant safety hazard to the subsequent safe production of the electrolytic series. Therefore, it is necessary to conduct withstand voltage tests on the insulating materials.

[0003] Current technology involves conducting experiments in air. Within the gas gaps of air, when the applied voltage is sufficiently high, electrons near the cathode are accelerated and gain enough kinetic energy to collide with gas molecules, causing these molecules to ionize into new electrons and positive ions. As the voltage increases and the electric field strengthens, the number of accelerated electrons increases dramatically. These electrons continuously collide with gas molecules, generating even more electrons and positive ions, forming what is known as an "electron avalanche." During this process, the number of electrons increases exponentially, causing the current to increase rapidly. When the voltage rises to a certain value and the electric field strength reaches a critical value (i.e., the breakdown field strength of the gas), the space charge in the electron avalanche is sufficient to significantly distort the original electric field, thus triggering a complete breakdown of the gas gap. At this point, the gas changes from an insulating state to a conductive state, forming a discharge channel and generating a large discharge current, causing the testing instrument to trip and preventing the required test voltage from being reached. Utility Model Content

[0004] To overcome the problem that existing testing devices cannot reach the required voltage when conducting withstand voltage tests on insulating materials, this utility model provides a withstand voltage testing device for insulating materials, including a hollow shell, insulating oil, a frame, wires, a power supply, and a test sample. The frame is detachably placed inside the shell. The frame includes a base plate, a cover plate, a support column, and two electrodes. The two electrodes are coaxially arranged on the upper surface of the base plate and the lower surface of the cover plate, respectively. The cover plate is coaxially arranged on the upper surface of the base plate, and a support column is arranged between the lower surface of the cover plate and the upper surface of the base plate. The test sample is installed between the two electrodes. Insulating oil is also placed inside the shell, and the test sample is immersed in the insulating oil. Both electrodes are electrically connected to the power supply through wires.

[0005] This application eliminates the influence of air on the test during the withstand voltage test by the cooperation between the shell and the insulating oil. The insulating oil protects the test sample that is immersed in it during the withstand voltage test, fills the air bubbles in the test sample, and prevents the intrusion of external air and moisture. In addition to holding the insulating oil, the shell also provides isolation and protection for the skeleton.

[0006] Preferably, both electrodes are immersed in insulating oil, which further ensures the insulation of the entire device during the withstand voltage test by submerging all electrodes in insulating oil.

[0007] Preferably, the adjustment component is coaxially arranged with the cover plate and passes through the cover plate, and the adjustment component can move along the central axis of the cover plate, with the electrode near the cover plate located at the end of the adjustment component near the bottom plate.

[0008] Preferably, the adjustment assembly includes a hollow adjustment rod and a nut, with the nut coaxially disposed on the surface of the cover plate. The adjustment rod can move along the central axis of the cover plate, passing through the nut and the cover plate. The outer surface of the end of the adjustment rod near the bottom plate is provided with a thread that matches the nut. The electrode near the cover is disposed at the end of the adjustment rod near the bottom plate. An electric wire passes through the adjustment rod and electrically connects the electrode connected to the adjustment rod to a power source. The distance between the two electrodes is adjusted by the adjustment assembly to accommodate test samples of different sizes.

[0009] Preferably, the support column is hollow, and a hollow support platform is provided between the electrode and the base plate and the cover plate. A round hole is provided at the position where the base plate and the cover plate are connected to the support platform. The wire passes through the round hole and the support platform to electrically connect the two electrodes to the power supply.

[0010] Preferably, the base plate has a channel connecting the support platform and support column near the upper surface of the base plate, and the cover plate has a hole connected to the support column. The wire passes through the hole, support column, base plate, and support platform in sequence and is electrically connected to the electrode near the upper surface of the base plate. The hollow support column, support platform, and channel in the floor prevent the wire from contacting the insulating oil and being corroded.

[0011] Preferably, the electrode is a spherical electrode.

[0012] Preferably, the shell is made of ceramic. By selecting ceramic, which has excellent insulation and corrosion resistance, as the shell material, it works in conjunction with insulating oil to provide double insulation, ensuring sufficient insulation strength and making the equipment safer and more reliable.

[0013] Beneficial effects:

[0014] The beneficial effects of adopting the technical solution of this utility model are as follows:

[0015] (1) This application eliminates the influence of air on the test during the withstand voltage test by the cooperation between the shell and the insulating oil. The insulating oil protects the test sample that is immersed in it during the withstand voltage test, fills the air bubbles in the test sample, and prevents the intrusion of external air and moisture. In addition to holding the insulating oil, the shell also plays a role in isolating and protecting the skeleton.

[0016] (2) This application further ensures the insulation of the entire device during the withstand voltage test by submerging all electrodes with insulating oil; in addition, by selecting ceramic with excellent insulation and corrosion resistance as the shell material, it plays a double insulation role in combination with insulating oil, ensuring sufficient insulation strength and making the equipment safer and more reliable.

[0017] (3) In this application, the distance between the two electrodes can be adjusted by adjusting the components to accommodate test samples of different sizes. In addition, the hollow support column, support platform and the channel in the floor prevent the wire from being corroded by contact with the insulating oil. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic cross-sectional view of the overall traditional Chinese medicine hot compress therapy device of this utility model.

[0020] In the diagram: 1. Shell; 2. Insulating oil; 3. Base plate; 4. Cover plate; 5. Support column; 6. Electrode; 7. Support platform; 8. Adjusting rod; 9. Nut; 10. Thread; 11. Wire; 12. Power supply; 13. Round hole; 14. Channel; 15. Hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] This embodiment eliminates the influence of air on the withstand voltage test by setting up a shell and insulating oil in cooperation. During the withstand voltage test, the insulating oil protects the test sample immersed in it, fills air bubbles in the test sample, and prevents the intrusion of external air and moisture. In addition to holding the insulating oil, the shell also provides insulation and protection for the frame. The specific implementation method is as follows:

[0023] like Figure 1 As shown, an insulating material withstand voltage test device includes a hollow shell 1, insulating oil 2, a frame, wires 11, a power supply 12, and a test sample 15. The frame is detachably placed inside the shell 1. The frame includes a base plate 3, a cover plate 4, a support column 5, and two electrodes 6. The two electrodes 6 are coaxially arranged on the upper surface of the base plate 3 and the lower surface of the cover plate 4, respectively. The cover plate 4 is coaxially arranged on the upper surface of the base plate 3, and the support column 5 is arranged between the lower surface of the cover plate 4 and the upper surface of the base plate 3. The test sample 15 is installed between the two electrodes 6. The insulating oil 2 is also placed inside the shell 1, and the test sample 15 is immersed in the insulating oil 2. Both electrodes 6 are electrically connected to the power supply 12 through wires 11.

[0024] This application eliminates the influence of air on the test during the withstand voltage test by the cooperation between the housing 1 and the insulating oil 2. The insulating oil 2 protects the test sample 15 that is immersed in it during the withstand voltage test, fills the air bubbles in the test sample 15, and prevents the intrusion of external air and moisture. In addition to holding the insulating oil 2, the housing 1 also provides isolation and protection for the skeleton.

[0025] Specifically, both electrodes 6 are immersed in insulating oil 2, which further ensures the insulation of the entire device during the withstand voltage test by submerging all electrodes 6 in insulating oil 2.

[0026] Specifically, the adjustment component is coaxially arranged with and passes through the cover plate 4, and the adjustment component can move along the central axis of the cover plate 4. The electrode 6 near the cover plate 4 is located at the end of the adjustment component near the base plate 3.

[0027] Specifically, the adjustment assembly includes a hollow adjustment rod 8 and a nut 9, with the nut 9 coaxially mounted on the surface of the cover plate 4. The adjustment rod 8 can move along the central axis of the cover plate 4, passing through the nut 9 and the cover plate 4. The outer surface of the end of the adjustment rod 8 near the base plate 3 is provided with a thread 10 that matches the nut 9. The electrode 6 near the cover is located at the end of the adjustment rod 8 near the base plate 3. The wire 11 passes through the adjustment rod 8 and electrically connects the electrode 6 connected to the adjustment rod 8 to the power supply 12. The distance between the two electrodes 6 is adjusted by the adjustment assembly to accommodate test samples 15 of different sizes.

[0028] Specifically, the support column 5 is hollow, and hollow support platforms 7 are provided between the electrode 6 and the base plate 3 and the cover plate 4. The base plate 3 and the cover plate 4 are provided with round holes at the positions where they are connected to the support platforms 7. The wire 11 passes through the round holes and the support platforms 7 to electrically connect the two electrodes 6 to the power supply 12.

[0029] Specifically, the base plate 3 is provided with a channel 13 connecting the support platform 7 and the support column 5 near the upper surface of the base plate 3, and a hole 14 connected to the support column 5 is opened on the cover plate 4. The wire 11 passes through the hole 14, the support column 5, the base plate 3, and the support platform 7 in sequence and is electrically connected to the electrode 6 near the upper surface of the base plate 3. The hollow support column 5, the support platform 7 and the channel 13 in the floor prevent the wire 11 from contacting the insulating oil 2 and being corroded.

[0030] Specifically, electrode 6 is a spherical electrode 6.

[0031] Specifically, the shell 1 is made of ceramic. By selecting ceramic, which has excellent insulation and corrosion resistance, as the material of the shell 1, it works in conjunction with insulating oil 2 to provide double insulation, ensuring sufficient insulation strength and making the equipment safer and more reliable.

[0032] Working principle: The test sample is placed between the two electrodes, and the electrodes are clamped by rotating the adjusting rod. Then the entire skeleton is placed into the housing, and the insulating oil in the housing covers the two electrodes and the test sample. Then the power is turned on to perform the withstand voltage test of the insulation material.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A withstand voltage testing device for insulating materials, characterized in that, The device includes a hollow shell (1), insulating oil (2), a frame, wires (11), a power supply (12), and a test sample (15). The frame is detachably placed inside the shell (1). The frame includes a base plate (3), a cover plate (4), a support column (5), and two electrodes (6). The two electrodes (6) are coaxially arranged on the upper surface of the base plate (3) and the lower surface of the cover plate (4). The cover plate (4) is coaxially arranged on the upper surface of the base plate (3), and the support column (5) is arranged between the lower surface of the cover plate (4) and the upper surface of the base plate (3). The test sample (15) is installed between the two electrodes (6). The insulating oil (2) is also placed inside the shell (1), and the test sample (15) is immersed in the insulating oil (2). Both electrodes (6) are electrically connected to the power supply (12) through the wires (11).

2. The insulating material withstand voltage testing device according to claim 1, characterized in that, Both electrodes (6) are immersed in the insulating oil (2).

3. The insulating material withstand voltage testing device according to claim 1, characterized in that, The adjustment component is coaxially arranged with the cover plate (4) and passes through the cover plate (4), and the adjustment component can move along the central axis of the cover plate (4). The electrode (6) near the cover plate (4) is located at the end of the adjustment component near the base plate (3).

4. The insulating material withstand voltage testing device according to claim 3, characterized in that, The adjustment assembly includes a hollow adjustment rod (8) and a nut (9). The nut (9) is coaxially disposed on the surface of the cover plate (4). The adjustment rod (8) can move along the central axis of the cover plate (4) and passes through the nut (9) and the cover plate (4). The outer surface of the end of the adjustment rod (8) near the bottom plate (3) is provided with a thread (10) that matches the nut (9). The electrode (6) near the cover is disposed at the end of the adjustment rod (8) near the bottom plate (3). The wire (11) passes through the adjustment rod (8) and electrically connects the electrode (6) connected to the adjustment rod (8) to the power supply (12).

5. The insulating material withstand voltage testing device according to claim 1, characterized in that, The support column (5) is hollow. A hollow support platform (7) is provided between the electrode (6) and the base plate (3) and the cover plate (4). The base plate (3) and the cover plate (4) are provided with round holes at the positions where they are connected to the support platform (7). The wire (11) passes through the round hole and the support platform (7) to electrically connect the two electrodes (6) to the power supply (12).

6. The insulating material withstand voltage testing device according to claim 5, characterized in that, The base plate (3) is provided with a channel (13) connecting the support platform (7) and the support column (5) near the upper surface of the base plate (3), and a hole (14) connected to the support column (5) is provided on the cover plate (4). The wire (11) passes through the hole (14), the support column (5), the base plate (3), and the support platform (7) in sequence and is electrically connected to the electrode (6) near the upper surface of the base plate (3).

7. The insulating material withstand voltage testing device according to claim 1, characterized in that, The electrode (6) is a spherical electrode (6).

8. The insulating material withstand voltage testing device according to claim 1, characterized in that, The shell (1) is made of ceramic.

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