Lightning impulse voltage generator grounding device
By introducing a hydrophobic component into the grounding device of the lightning impulse voltage generator, the soil moisture was adjusted, the problem of unstable grounding resistance was solved, and the test accuracy was improved.
Patent Information
- Application Number
- CN202520247656.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-14
AI Technical Summary
The existing grounding devices of lightning impulse voltage generators have difficulty maintaining a stable grounding resistance under different soil moisture conditions, which affects the accuracy of the test.
A grounding device including a grounding electrode, an isolation sleeve, and a hydrophobic component was designed. The hydrophobic component consists of hydrophobic cotton, a hydrophobic rod, a hydrophobic plate, and a hydrophobic block. The hydrophobic rod drives the hydrophobic block to move within the through hole, squeezing the hydrophobic cotton to regulate soil moisture and ensure good conductivity between the grounding electrode and the soil.
It effectively regulates soil moisture, maintains stable conductivity between the grounding electrode and the soil, and improves the test accuracy of the lightning impulse voltage generator.
Smart Images
Figure CN223583245U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to impulse voltage generator technical field, concretely relates to a lightning impulse voltage generator grounding device. BACKGROUND
[0002] Lightning impulse voltage generator is mainly used for lightning impulse voltage full wave, lightning impulse voltage cut wave and operating impulse voltage wave impact voltage test of power equipment and other test products, insulating performance is tested, and the grounding device of the generator needs to be discharged after completing the impact voltage test, but the existing grounding device is simply buried in the ground, when the humidity of the land increases, the grounding resistance is smaller, when the land is drought, the grounding resistance is bigger, therefore, the ordinary grounding conductor is difficult to meet the stable grounding demand, and the test precision is affected, and therefore, the utility model is provided. UTILITY MODEL CONTENTS
[0003] In order to solve the problem that the existing grounding device is difficult to meet the stable grounding demand, the utility model provides a lightning impulse voltage generator grounding device.
[0004] The utility model discloses a lightning impulse voltage generator grounding device, the grounding device includes ground pole, isolation sleeve, connecting sleeve and hydrophobic component, one end of ground pole inserts the land, and the other end is connected with connecting sleeve, is provided with the wiring pin on connecting sleeve, the hydrophobic component includes hydrophobic cotton, hydrophobic rod, hydrophobic board and hydrophobic block, the hydrophobic cotton is sleeved on ground pole, isolation sleeve is sleeved on the hydrophobic cotton, the through -hole for the movement of hydrophobic block is seted up in ground pole, hydrophobic rod is located in the through -hole and is connected with hydrophobic block screw thread, a plurality of hydrophobic boards are arranged along the circumferential surface of ground pole, and rotating hydrophobic rod can drive hydrophobic block to move and drive hydrophobic board to extrude hydrophobic cotton.
[0005] In the embodiment of the utility model, the hydrophobic board is arc plate, and one surface is attached to the surface of the ground pole, and the other surface is attached to the surface of the hydrophobic cotton.
[0006] In the embodiment of the utility model, the taper is arranged on the surface of the hydrophobic cotton, so that the attachment strength of the lower side of the hydrophobic board to the hydrophobic cotton is greater than the attachment strength of the upper side of the hydrophobic board to the hydrophobic cotton.
[0007] In the embodiment of the utility model, the surface of the hydrophobic board close to the surface of the ground pole is fixed with a push rod, the push rod passes through the ground pole and is located in the through -hole, and the hydrophobic block moves in the through -hole and pushes the hydrophobic board to move through the push rod.
[0008] In the embodiment of the utility model, the push rod is provided with a limiting table and a reset spring, the reset spring is abutted on the limiting table and makes the hydrophobic plate reset after moving.
[0009] In the embodiment of the utility model, the hydrophobic assembly further includes a hydrophobic driving piece, the hydrophobic driving piece is installed on the connecting sleeve and connected with the hydrophobic rod to drive the hydrophobic rod to rotate.
[0010] In the embodiment of the utility model, the hydrophobic block is a square block, the size of the through hole is adapted to the hydrophobic block to drive the hydrophobic block to slide in the through hole when the hydrophobic rod rotates.
[0011] In the embodiment of the utility model, the upper and lower surfaces of the hydrophobic block are provided with round corners, and one end of the push rod close to the through hole is provided with a round corner.
[0012] In the embodiment of the utility model, the hydrophobic plates are arranged in the circumferential direction of the grounding pole, and the hydrophobic plates are arranged in the circumferential direction of the grounding pole.
[0013] In the embodiment of the utility model, the top of the connecting sleeve is provided with a trumpet-shaped pouring opening to pour water on the hydrophobic cotton through the pouring opening.
[0014] Compared with the prior art, the utility model has the beneficial effects that:
[0015] By setting the hydrophobic cotton on the grounding pole and sleeving the isolation sleeve on the hydrophobic cotton, the hydrophobic assembly adjusts the humidity of the land around the grounding pole, when the humidity of the land is too high, the water in the land is absorbed by the water-absorbing cotton, then the hydrophobic rod is rotated to drive the hydrophobic block to move up and down in the through hole, and then the hydrophobic block drives the hydrophobic plate to move and press the hydrophobic cotton, when the hydrophobic block moves up from the bottom of the through hole, the hydrophobic plate can press the hydrophobic cotton from bottom to top, so that the water in each position of the hydrophobic cotton is close to uniform, thereby reducing the negative effect of water on the conductivity of the land, ensuring the good conductivity between the grounding pole and the land, improving the test accuracy of the impact generator, and vice versa, when the humidity of the land is too low, water can be artificially poured on the hydrophobic cotton, and the hydrophobic block is moved from top to bottom in the through hole by rotating the hydrophobic rod, so as to accelerate the overall absorption of water and hydrophobic cotton, thereby increasing the humidity of the land and avoiding the influence of too dry land on the test accuracy of the impact generator. BRIEF DESCRIPTION OF DRAWINGS
[0016] The drawings are used to provide further understanding of the embodiments of the utility model and constitute a part of the specification, and are used together with the specific embodiments below to explain the embodiments of the utility model, but do not constitute the limitation to the embodiments of the utility model, and in the drawings:
[0017] Figure 1 is a perspective structural schematic view of the grounding device provided by the embodiment of the present application;
[0018] Figure 2 is a half-cut explosion structural schematic view of the grounding device provided by the embodiment of the present application;
[0019] Figure 3 is Figure 2 the enlarged view of A in the above figure.
[0020] Explanation of reference signs
[0021] 1, grounding device; 11, grounding pole, 12, isolation sleeve; 13, connecting sleeve; 14, drainage assembly; 131, wiring pin; 132, pouring port; 133, protective cover; 141, drainage cotton, 142, drainage rod; 143, drainage plate; 144, drainage block; 145, drainage driving member; 1431, push rod; 1432, limiting table; 1433, reset spring. DETAILED DESCRIPTION
[0022] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.
[0023] Please refer to Figures 1-3 , the present application provides a lightning impulse voltage generator grounding device 1, the grounding device 1 includes grounding pole 11, isolation sleeve 12, connecting sleeve 13 and drainage assembly 14, one end of grounding pole 11 is inserted into the earth, the other end is connected with connecting sleeve 13, connecting sleeve 13 is provided with wiring pin 131, drainage assembly 14 includes drainage cotton 141, drainage rod 142, drainage plate 143 and drainage block 144, drainage cotton 141 is sleeved on grounding pole 11, isolation sleeve 12 is sleeved on drainage cotton 141, through hole for drainage block 144 to move is set in grounding pole 11, drainage rod 142 is located in the through hole and is threadedly connected with drainage block 144, drainage plate 143 is provided with a plurality of along the circumferential surface of grounding pole 11, rotating drainage rod 142 can drive drainage block 144 to move and drive drainage plate 143 to extrude drainage cotton 141.
[0024] When using lightning impulse voltage generator to carry out impulse voltage test, first, the grounding device 1 is buried in the earth, then the lightning generator and the wiring pin 131 are connected through the wire, so that the grounding device 1 is discharged for the lightning impulse generator, because the humidity of the earth is affected by the environment temperature and humidity, using simple grounding conductor to ground can cause the grounding resistance of the lightning impulse generator to be unstable, and then affect the test precision.
[0025] The hydrophobic assembly 14 adjusts the humidity of the land around the grounding pole 11 by setting the hydrophobic cotton 141 on the grounding pole 11 and sleeving the isolation sleeve 12 on the hydrophobic cotton 141, and specifically, when the humidity of the land is too high, the water in the land is absorbed by the hydrophobic cotton, and then the hydrophobic rod 142 is rotated to drive the hydrophobic block 144 to move up and down in the through hole, and then the hydrophobic block 144 drives the hydrophobic plate 143 to move and press the hydrophobic cotton 141, because the deeper the land, the higher the humidity, so the humidity at the bottom of the hydrophobic cotton 141 is necessarily higher than the humidity at the top of the hydrophobic cotton 141, and then when the hydrophobic block 144 moves upward from the bottom of the through hole, the hydrophobic plate 143 can press the hydrophobic cotton 141 from bottom to top, so that the moisture of the hydrophobic cotton 141 at different positions is close to uniform, thereby reducing the humidity of the land, reducing the negative effect of water on the conductivity of the land, ensuring good conductivity between the grounding pole 11 and the land, improving the test accuracy of the impulse generator, and vice versa, when the humidity in the land is too low, water can be artificially poured on the hydrophobic cotton 141, and the hydrophobic rod 142 is rotated to drive the hydrophobic block 144 to move from top to bottom in the through hole, so as to accelerate the overall absorption of water and the hydrophobic cotton 141, thereby increasing the humidity of the land and avoiding the influence of too dry land on the test accuracy of the impulse generator.
[0026] In the above embodiment, the humidity sensor is arranged on the grounding pole 11 to detect the humidity of the land through the humidity sensor, and then the test personnel controls the hydrophobic assembly 14 to take humidity adjustment measures for the land according to the humidity detected by the humidity sensor.
[0027] In the embodiment of the utility model, the hydrophobic plate 143 is an arc plate, and one surface is attached to the surface of the grounding pole 11, and the other surface is attached to the surface of the hydrophobic cotton 141, so that the hydrophobic plate 143 can be better attached to the surface of the hydrophobic cotton 141, and the contact area with the hydrophobic cotton 141 is increased. When the hydrophobic cotton 141 is pressed, the structure of the arc plate makes the pressure distribution more uniform, which can more effectively squeeze out the water in the hydrophobic cotton 141 and improve the hydrophobic effect of the hydrophobic cotton 141.
[0028] In the embodiment of the utility model, the hydrophobic plate 143 attached to the surface of the hydrophobic cotton 141 is provided with a taper, so that the attachment strength of the lower side of the hydrophobic plate 143 to the hydrophobic cotton 141 is greater than that of the upper side of the hydrophobic plate 143 to the hydrophobic cotton 141, and when the hydrophobic plate 143 presses the hydrophobic cotton 141, the water in the hydrophobic cotton 141 is squeezed from the bottom to the top, so that the water absorbed by the hydrophobic cotton 141 at different positions is close to uniform, thereby playing a role in absorbing water in the land, reducing the humidity of the land, and enabling the grounding pole 11 to maintain stable conductivity, thereby improving the test accuracy.
[0029] In the embodiment of the utility model, the push rod 1431 is fixed on the surface of the grounding pole 11, passes through the grounding pole 11 and is located in the through hole, the hydrophobic block 144 moves in the through hole and pushes the hydrophobic plate 143 to move through the push rod 1431, so that the hydrophobic plate 143 extrudes the hydrophobic cotton 141, when the moisture in each position of the hydrophobic cotton 141 is close to consistent, the moisture absorption effect in the land can be realized, and the land humidity is reduced, and the test precision of the lightning impulse generator is improved.
[0030] In the embodiment of the utility model, the push rod 1431 is fixed on the surface of the grounding pole 11, passes through the grounding pole 11 and is located in the through hole, the hydrophobic block 144 moves in the through hole and pushes the hydrophobic plate 143 to move through the push rod 1431, so that the hydrophobic plate 143 extrudes the hydrophobic cotton 141, when the moisture in each position of the hydrophobic cotton 141 is close to consistent, the moisture absorption effect in the land can be realized, and the land humidity is reduced, and the test precision of the lightning impulse generator is improved.
[0031] In the embodiment of the utility model, the hydrophobic assembly 14 further includes a hydrophobic driving piece 145, the hydrophobic driving piece 145 is installed on the connecting sleeve 13 and is connected with the hydrophobic rod 142, so as to drive the hydrophobic rod 142 to rotate, so that the rotating hydrophobic rod 142 drives the hydrophobic block 144 to move up and down in the through hole, and adjusts the land humidity under the action of the hydrophobic cotton 141, wherein the hydrophobic driving piece 145 is a motor.
[0032] In the embodiment of the utility model, the hydrophobic block 144 is a square block, the size of the through hole is matched with the hydrophobic block 144 so as to drive the hydrophobic block 144 to slide in the through hole when the hydrophobic rod 142 rotates, when the square hydrophobic block 144 slides in the through hole, the rotation of the hydrophobic block 144 in the through hole can be avoided, and then the rotating hydrophobic rod 142 drives the hydrophobic block 144 to move up and down, so that the hydrophobic effect is achieved and the land humidity is improved.
[0033] In the embodiment of the utility model, the upper and lower surfaces of the hydrophobic block 144 are provided with round corners, and one end of the push rod 1431 close to the through hole is provided with a round corner, so as to facilitate the translation of the hydrophobic block 144 extruding the push rod 1431, and the hydrophobic plate 143 extrudes the hydrophobic cotton 141 to absorb moisture, and the friction between the hydrophobic block 144 and the push rod 1431 is reduced.
[0034] In the embodiment of the utility model, hydrophobic plate 143 is arrayed along the circumferential direction of ground electrode column 11, and hydrophobic plate 143 is arrayed along the circumferential direction of ground electrode column 11, so that when hydrophobic block 144 moves from bottom to top, the lowermost hydrophobic plate 143 extrudes hydrophobic cotton 141, and after passing through the hydrophobic cotton 141 at the intermediate position, the hydrophobic cotton 141 at the uppermost layer is hydrophobized, so as to adjust the moisture in the land.
[0035] In the embodiment of the utility model, the top of connecting sleeve 13 is provided with a pouring opening 132 in the shape of a horn, so as to water hydrophobic cotton 141 through pouring opening 132, thereby increasing the humidity of the land when the land is dry, ensuring that ground electrode column 11 has good conductivity, and improving the test accuracy.
[0036] In the embodiment of the utility model, a protective cover 133 is arranged on pouring opening 132, the protective cover 133 is sleeved on hydrophobic driving part 145 and covers pouring opening 132, so that when the land is dry, the test personnel opens protective cover 133 and waters pouring opening 132, thereby increasing the humidity of the land, and when the land is wet, protective cover 133 is covered on pouring opening 132, so as to prevent rainwater in the environment from flowing into hydrophobic cotton 141 from pouring opening 132.
[0037] In the utility model, unless otherwise expressly specified and limited, the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is less than that of the second feature, and therefore cannot be understood as a limitation on the utility model.
[0038] The preferred embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited thereto. Within the technical concept of the present application, the technical solution of the present application can be subjected to various simple modifications, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present application will not be described again for various possible combination manners. However, these simple modifications and combinations should also be considered as disclosed content of the present application, and all belong to the protection scope of the present application.
[0039] Although the embodiments of the present application have been shown and described above, it should be understood that the above-described embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.
Claims
1. A grounding device for a lightning impulse voltage generator, characterized in that, The grounding device includes a grounding electrode, an isolation sleeve, a connecting sleeve, and a hydrophobic component. One end of the grounding electrode is inserted into the ground, and the other end is connected to the connecting sleeve. The connecting sleeve is provided with wiring pins. The hydrophobic component includes hydrophobic cotton, a hydrophobic rod, a hydrophobic plate, and a hydrophobic block. The hydrophobic cotton is sleeved on the grounding electrode, and the isolation sleeve is sleeved on the hydrophobic cotton. A through hole is opened in the grounding electrode for the hydrophobic block to move. The hydrophobic rod is located in the through hole and is threadedly connected to the hydrophobic block. Multiple hydrophobic plates are arranged in an array along the circumferential surface of the grounding electrode. Rotating the hydrophobic rod can drive the hydrophobic block to move and drive the hydrophobic plate to squeeze the hydrophobic cotton.
2. The grounding device for a lightning impulse voltage generator according to claim 1, characterized in that, The hydrophobic plate is an arc-shaped plate, with one side attached to the surface of the grounding electrode and the other side attached to the surface of the hydrophobic cotton.
3. The grounding device for a lightning impulse voltage generator according to claim 2, characterized in that, The hydrophobic plate is tapered on the surface of the hydrophobic cotton, so that the adhesion between the lower side of the hydrophobic plate and the hydrophobic cotton is greater than the adhesion between the upper side of the hydrophobic plate and the hydrophobic cotton.
4. The grounding device for a lightning impulse voltage generator according to claim 1, characterized in that, A push rod is fixed to the surface of the hydrophobic plate near the grounding electrode. The push rod passes through the grounding electrode and is located in the through hole. When the hydrophobic block moves in the through hole, it pushes the hydrophobic plate to move through the push rod.
5. The grounding device for a lightning impulse voltage generator according to claim 4, characterized in that, The push rod is provided with a limiting platform and a return spring. The return spring abuts against the limiting platform and resets the hydrophobic plate after it has been moved.
6. The grounding device for a lightning impulse voltage generator according to claim 4, characterized in that, The hydrophobic assembly further includes a hydrophobic drive component, which is mounted on the connecting sleeve and connected to the hydrophobic rod to drive the hydrophobic rod to rotate.
7. The grounding device for a lightning impulse voltage generator according to claim 6, characterized in that, The hydrophobic block is a square block, and the size of the through hole is adapted to the hydrophobic block so that the hydrophobic block can slide in the through hole when the hydrophobic rod rotates.
8. The grounding device for a lightning impulse voltage generator according to claim 7, characterized in that, The upper and lower surfaces of the hydrophobic block are provided with rounded corners, and the end of the push rod near the through hole is also provided with rounded corners.
9. The grounding device for a lightning impulse voltage generator according to claim 1, characterized in that, The hydrophobic plates are arranged in an array along the circumferential direction of the grounding electrode, and the hydrophobic plates are arranged in an array along the circumferential direction of the grounding electrode.
10. The grounding device for a lightning impulse voltage generator according to any one of claims 1-9, characterized in that, The top of the connecting sleeve is provided with a trumpet-shaped pouring port to wet the hydrophobic cotton by pouring water through the pouring port.