Photovoltaic booster station grounding soil resistance reducing device
By using conductive concrete columns and retractable grounding plugs in the grounding device of the photovoltaic booster station, the problem of unstable connection of the grounding device in high-resistivity soil was solved, achieving stable grounding effect and equipment safety.
Patent Information
- Application Number
- CN202520011764.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-03
AI Technical Summary
The existing grounding devices for photovoltaic booster stations are not securely connected in high-resistivity soils and are prone to falling off, affecting the grounding effect and equipment safety.
The grounding device is designed with a grounding cylinder at the bottom of a conductive concrete column, combined with a retractable grounding plug and a stable cylinder structure, and fixed by threaded rods and clamps to ensure a stable connection between the grounding device and the soil.
This improves the connection between the grounding device and the soil, avoids the problem of detachment, and enhances the grounding effect and equipment safety.
Smart Images
Figure CN223693379U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to photovoltaic booster station technical field, concretely is a kind of photovoltaic booster station grounding soil resistance reduction device. BACKGROUND
[0002] In the grounding system of photovoltaic booster station, sometimes high soil resistance is encountered, which can affect the grounding effect and the safety performance of the equipment. Therefore, the grounding soil is usually subjected to resistance reduction operation.
[0003] The existing soil resistance reduction method is mainly to increase the length of grounding electrode, increase the number of grounding electrode and add resistance reduction agent. Increasing the length of grounding electrode can increase the contact area with soil, thereby reducing the resistance of grounding system. Increasing the number of grounding electrode can achieve better grounding performance by distributing multiple grounding electrodes in a larger area. Adding resistance reduction agent can improve the conductivity of soil by adding chemicals, thereby reducing the resistance of grounding system. However, the grounding device in the prior art is not firm enough in connection with the ground and is prone to falling off, so the prior art needs to be improved. SUMMARY
[0004] The utility model aims at providing a photovoltaic booster station grounding soil resistance reduction device to solve the problems raised in the background.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a photovoltaic booster station grounding soil resistance reduction device, comprising a conductive concrete column, a grounding cylinder is assembled at the bottom end of the conductive concrete column, and mounting holes are formed around the top end of the grounding cylinder.
[0006] Extension holes are formed around the outer wall of the grounding cylinder, and the extension holes and the mounting holes are connected.
[0007] A stable cylinder is inserted into the mounting hole, a driving hole is formed in the side wall of the stable cylinder, a ground plug is inserted into the driving hole, and the ground plug extends to the outside after passing through the extension hole.
[0008] A threaded hole is formed at the top end of the stable cylinder, a threaded rod is inserted into the threaded hole, a connecting disc is mounted at the top end of the threaded rod, and a wire is mounted between the connecting disc and the grounding cylinder.
[0009] A clamp is mounted at the top end of the grounding cylinder, and the clamp is sleeved outside the conductive concrete column.
[0010] Preferably, one end of the ground plug in the stable cylinder is provided with a fixed plate, and a spring is sleeved between the fixed plate and the inner wall of the stable cylinder.
[0011] Preferably, the cross-sectional area of the fixing plate is larger than that of the driving hole, and the end of the threaded rod is provided with a circular arc surface.
[0012] Preferably, the opening of the clamp is provided with a fastening plate at both ends, the side wall of the fastening plate is provided with a U-shaped groove, and the U-shaped groove is provided with a screw rod.
[0013] Preferably, the outer wall of the screw rod is sleeved with a fixing ring outside the fastening plate, and the outer wall of the screw rod is screwed with a nut outside the fixing ring.
[0014] Preferably, the outer wall of the screw rod is sleeved with a rubber pad a and a rubber pad b, and the rubber pad a and the rubber pad b are provided with a rubber block therebetween.
[0015] Preferably, the bottom end of the grounding cylinder is provided with a grounding needle.
[0016] Compared with the prior art, the photovoltaic booster station grounding soil resistance reduction device has the advantages that the structure is reasonable, the grounding cylinder is arranged at the bottom end of the conductive concrete main body, the telescopic ground plug is arranged on the outer wall of the grounding cylinder, the ground plug is extended out after the grounding cylinder is installed into the soil, and the firmness of the grounding column and the ground is improved, and the problem of easy falling off is solved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structural schematic view of the utility model;
[0018] Figure 2 It is a stable cylinder schematic view of the utility model;
[0019] Figure 3 It is a stable cylinder internal schematic view of the utility model;
[0020] Figure 4 It is a screw rod schematic view of the utility model.
[0021] In the drawing: 1 conductive concrete column, 2 wire, 3 grounding needle, 4 grounding cylinder, 5 clamp, 6 fastening plate, 7 screw rod, 8 U-shaped groove, 9 extension hole, 10 ground plug, 11 stable cylinder, 12 mounting hole, 13 threaded rod, 14 connecting disc, 15 threaded port, 17 circular arc surface, 18 driving hole, 20 fixing plate, 21 spring, 22 rubber pad a, 23 rubber block, 24 rubber pad b, 25 fixing ring, 26 nut. DETAILED DESCRIPTION
[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0023] Please refer to Figures 1-4 The present application provides a technical solution:
[0024] In the technical solution, the grounding soil resistance reduction device for photovoltaic booster station comprises a conductive concrete column 1, characterized in that: the bottom end of the conductive concrete column 1 is assembled with a grounding cylinder 4, and mounting holes 12 are formed around the top end of the grounding cylinder 4; extension holes 9 are formed around the outer wall of the grounding cylinder 4, and the extension holes 9 and the mounting holes 12 are in communication; a stable cylinder 11 is inserted into the mounting hole 12, a driving hole 18 is formed in the side wall of the stable cylinder 11, a ground plug 10 is inserted into the driving hole 18, and the ground plug 10 extends to the outside after passing through the extension hole 9; a threaded hole 15 is formed in the top end of the stable cylinder 11, a threaded rod 13 is inserted into the threaded hole 15, a connecting disc 14 is mounted at the top end of the threaded rod 13, and a wire 2 is mounted between the connecting disc 14 and the grounding cylinder 4; a clamp 5 is mounted at the top end of the grounding cylinder 4, and the clamp 5 is sleeved outside the conductive concrete column 1.
[0025] In the technical solution, the grounding cylinder 4 is mounted at the bottom end of the conductive concrete column 1, the conductive concrete column 1 is arranged at the grounding position of the photovoltaic booster station after being inserted into the soil, the extension holes 9 and the mounting holes 12 are arranged vertically, the stable cylinder 11 is inserted into the mounting hole 12, and the ground plug 10 is inserted into the soil transversely after passing through the extension hole 9.
[0026] In some technical solutions, a fixed plate 20 is mounted at one end of the ground plug 10 in the stable cylinder 11, a spring 21 is sleeved between the fixed plate 20 and the inner wall of the stable cylinder 11; the cross-sectional area of the fixed plate 20 is larger than that of the driving hole 18, and a circular arc surface 17 is formed at the end of the threaded rod 13.
[0027] In the technical solution, the cooperation of the ground plug 10 and the spring 21 facilitates the retraction of the ground plug 20 into the stable cylinder 11.
[0028] In some technical solutions, fastening plates 6 are mounted at both ends of the opening of the clamp 5, a U-shaped groove 8 is formed in the side wall of the fastening plate 6, and a screw rod 7 is assembled in the U-shaped groove 8.
[0029] In the technical solution, the two fastening plates 6 are fastened relative to each other, so that the clamp 5 is fastened.
[0030] In some technical solutions, the outer part of the screw rod 7 is sleeved with a fixing ring 25 at the outer wall of the fastening plate 6, and the outer part of the screw rod 7 is screwed with a nut 26 at the outer wall of the fixing ring 25.
[0031] In this technical solution, the two fastening plates 6 are fastened through the threaded cooperation of the nut 26 and the screw rod 7.
[0032] In some technical solutions, the outer part of the screw rod 7 is sleeved with a rubber pad a 22 and a rubber pad b 24, and a rubber block 23 is installed between the rubber pad a 22 and the rubber pad b 24.
[0033] In this technical solution, the sealing between the screw rod 7 and the U-shaped groove 8 is improved through the rubber pad a 22 and the rubber pad b 24.
[0034] In some technical solutions, the bottom end of the grounding cylinder 4 is equipped with a grounding needle 3.
[0035] Working principle: in use, the electrically conductive concrete column 1 is fixed with the grounding cylinder 4 through the clamp 5, then the grounding cylinder 4 is inserted into the soil, then the threaded rod 13 is screwed down, the fixed plate 20 can be pushed outward, and the spring 21 is compressed. Thus, the ground plug 10 can be stretched outward.
[0036] It should be noted that, in this document, the terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.
[0037] Although the utility model has been described above with reference to the embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the features in the embodiments disclosed by the utility model can be combined in any way, and the combinations are not exhaustively described in this specification only for the purpose of omitting the length and saving resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A photovoltaic booster station grounding soil resistance reduction device comprising a conductive concrete column (1), characterized in that: The bottom end of the conductive concrete column (1) is equipped with a grounding cylinder (4), and mounting holes (12) are evenly arranged around the top end of the grounding cylinder (4); An extension hole (9) is arranged around the outer wall of the grounding cylinder (4), and the extension hole (9) and the mounting hole (12) are in communication; A stable cylinder (11) is inserted into the mounting hole (12), a driving hole (18) is arranged in the side wall of the stable cylinder (11), a ground plug (10) is inserted into the driving hole (18), and the ground plug (10) extends to the outside through the extension hole (9); A threaded hole (15) is arranged at the top end of the stable cylinder (11), a threaded rod (13) is inserted into the threaded hole (15), a connecting disc (14) is arranged at the top end of the threaded rod (13), and a wire (2) is arranged between the connecting disc (14) and the grounding cylinder (4); A clamp (5) is arranged at the top end of the grounding cylinder (4), and the clamp (5) is sleeved on the outside of the conductive concrete column (1).
2. The grounding soil resistance reduction device for a photovoltaic booster station according to claim 1, characterized in that: One end of the ground plug (10) in the stable cylinder (11) is provided with a fixed plate (20), and a spring (21) is sleeved between the fixed plate (20) and the inner wall of the stable cylinder (11).
3. The grounding soil resistance reduction device of a photovoltaic booster station according to claim 2, characterized in that: The cross-sectional area of the fixed plate (20) is greater than that of the driving hole (18), and an arc surface (17) is arranged at the end of the threaded rod (13).
4. The grounding soil resistance reduction device of a photovoltaic booster station according to claim 1, characterized in that: Fastening plates (6) are arranged at both ends of the opening of the clamp (5), U-shaped grooves (8) are arranged in the side walls of the fastening plates (6), and screw rods (7) are arranged in the U-shaped grooves (8).
5. The grounding soil resistance reduction device of a photovoltaic booster station according to claim 4, characterized in that: A fixed ring (25) is sleeved on the outer wall of the screw rod (7) outside the fastening plate (6), and a nut (26) is screwed on the outer wall of the fixed ring (25) outside the screw rod (7).
6. The grounding soil resistance reduction device of a photovoltaic booster station according to claim 5, characterized in that: A rubber pad a (22) and a rubber pad b (24) are sleeved on the outer surface of the screw rod (7), and a rubber block (23) is arranged between the rubber pad a (22) and the rubber pad b (24).
7. The grounding soil resistance reduction device of a photovoltaic booster station according to claim 1, characterized in that: The bottom end of the grounding cylinder (4) is equipped with a grounding needle (3).