Fault detection device for photovoltaic power station

Abstract

The utility model discloses a fault detection device for a photovoltaic power station, which comprises a bottom plate, a protection box is mounted on the upper surface of the bottom plate, a detection mechanism is arranged in the protection box, a pulling mechanism is mounted on the back surface of the protection box, and support columns arranged at equal intervals are fixedly connected to the inner bottom wall of the protection box. The top ends of the supporting columns are jointly provided with a supporting plate, ventilation holes arranged at equal intervals are formed in the upper surface of the supporting plate, the detection mechanism comprises a fault detector, the fault detector is installed on the upper surface of the supporting plate, two detection lines are installed at the output end of the fault detector, and the detection lines are connected with the fault detector. The top ends of the two detection lines are provided with insulating handles, and the top ends of the two insulating handles are provided with detection heads. According to the device, through cooperation of the supporting columns and the ventilation holes, heat dissipation can be carried out on the bottom of the fault detector, heat dissipation can be carried out on the interior of the protection box through the heat dissipation grooves, and operation of detection equipment is prevented from being affected.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power station testing, and in particular to a fault detection device for photovoltaic power stations. Background Technology

[0002] A photovoltaic (PV) power station is a power generation system that utilizes solar energy and employs special materials such as crystalline silicon panels and electronic components such as inverters. It is connected to the power grid and transmits electricity to the grid. PV power stations are among the green power development energy projects that receive the most encouragement from the state. PV power stations can be divided into independent power generation systems with batteries and grid-connected power generation systems without batteries. Solar power generation is divided into solar thermal power generation and photovoltaic power generation. Currently, the solar power that has entered commercialization refers to solar photovoltaic power generation.

[0003] Photovoltaic power plants require regular fault monitoring. Current fault detection devices for photovoltaic power plants are inconvenient to carry, requiring staff to move them back and forth. Moreover, their heat dissipation is poor during testing, affecting the operation of the testing equipment. Therefore, we propose a fault detection device for photovoltaic power plants to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a fault detection device for photovoltaic power plants to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fault detection device for a photovoltaic power station includes a base plate, a protective box installed on the upper surface of the base plate, a detection mechanism inside the protective box, a pulling mechanism installed on the back of the protective box, and support columns arranged at equal intervals fixedly connected to the inner bottom wall of the protective box. A support plate is installed at the top of each support column, and ventilation holes arranged at equal intervals are opened on the upper surface of the support plate.

[0007] In a further embodiment, the detection mechanism includes a fault detector, which is mounted on the upper surface of the support plate. The output end of the fault detector is equipped with two detection lines, each with an insulating handle at its tip and a detection head at its tip.

[0008] In a further embodiment, the pulling mechanism includes a fixed corner plate, a symmetrical fixing block is installed on the back of the fixed corner plate, a pull handle is installed on one side of the two fixing blocks that are close to each other, a positioning seat is installed on the front of the fixed corner plate, and a slot is opened on the front of the positioning seat.

[0009] In a further embodiment, the upper surface of the protective box is provided with a cover plate, and the upper surface of the cover plate is fixedly connected with symmetrical positioning blocks, and the two positioning blocks are fixedly connected with a locking rod on their sides that are close to each other.

[0010] In a further embodiment, a protective cover is installed on the front of the protective box, a controller is installed inside the protective cover, and a display screen is provided on the front of the controller.

[0011] In a further embodiment, four support legs are installed on the bottom surface of the base plate, and each support leg is equipped with a brake caster at its bottom end. Symmetrical heat dissipation grooves are formed on the outer surface of the protective box, and dustproof nets are installed on the inner walls of both heat dissipation grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device, with its support legs and braked casters, facilitates easy movement and carrying by staff. The support columns and ventilation holes allow for heat dissipation from the bottom of the fault detector, while the cooling channels cool the interior of the protective case, preventing interference with the equipment's operation. A dustproof net prevents external dust from entering the case. The fault detector and testing head facilitate fault detection in corresponding mechanisms of photovoltaic power plants. The positioning seat and slot allow for easy insertion of the locking rod into the slot, achieving the desired cover positioning. Opening the cover for testing improves heat dissipation. The fixed corner plate and pull handle allow for easy maneuvering of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a fault detection device used in photovoltaic power plants.

[0015] Figure 2 This is a side sectional view of the protective box in a fault detection device used in photovoltaic power plants.

[0016] Figure 3 This is a top sectional view of the protective box in a fault detection device used in photovoltaic power plants.

[0017] Figure 4 This is a top sectional view of the protective box in a fault detection device used in photovoltaic power plants.

[0018] In the diagram: 1. Base plate; 2. Detection mechanism; 201. Fault detector; 202. Detection line; 203. Insulating handle; 204. Detection head; 3. Pulling mechanism; 301. Fixed angle plate; 302. Fixed block; 303. Pull handle; 304. Positioning seat; 305. Slot; 4. Protective box; 5. Support column; 6. Support plate; 7. Ventilation hole; 8. Cover plate; 9. Positioning block; 10. Locking rod; 11. Protective cover; 12. Controller; 13. Display screen; 14. Support leg; 15. Brake caster wheel; 16. Heat dissipation groove; 17. Dustproof net. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4In this utility model, a fault detection device for a photovoltaic power station includes a base plate 1, a protective box 4 installed on the upper surface of the base plate 1, a detection mechanism 2 inside the protective box 4, a pulling mechanism 3 installed on the back of the protective box 4, and support columns 5 arranged at equal intervals fixedly connected to the inner bottom wall of the protective box 4. A support plate 6 is installed at the top of each support column 5. Ventilation holes 7 arranged at equal intervals are opened on the upper surface of the support plate 6. Symmetrical heat dissipation grooves 16 are opened on the outer surface of the protective box 4. Dustproof nets 17 are installed on the inner walls of the two heat dissipation grooves 16. Through the cooperation of the support columns 5 and the ventilation holes 7, the bottom of the fault detector 201 can be cooled. The heat dissipation grooves 16 can be used to dissipate heat inside the protective box 4, and the dustproof nets 17 can prevent external dust from entering the interior of the protective box 4.

[0023] Testing unit 2 includes a fault detector 201, which can be various testing equipment used in photovoltaic power plants. For example, an infrared thermal imager (model FLIRT1020) is used to detect hot spots and overheating at connection points of components; it is a high-precision industrial-grade thermal imager that supports drone mounting and can identify temperature differences as low as 0.05℃. It captures infrared radiation from the surface of objects using an infrared sensor and converts it into a temperature distribution image, clearly showing abnormally high temperature points. An insulation resistance tester (model CA6412) is used to detect DC-side insulation degradation and leakage risks. It supports high-voltage testing, has a safety alarm function, outputs high-voltage DC, and measures the insulation resistance of the line to ground; a low resistance value indicates insulation damage. There is also a grounding resistance tester (HIOKI3453) that uses a three-pole / four-pole method for measurement, has strong anti-interference capabilities, and uses the potential drop method or clamp method to measure the resistance between the grounding electrode and the earth, ensuring safe current discharge. The fault detector 201 is mounted on the support plate 6. On the surface, the output end of the fault detector 201 is equipped with two detection lines 202. The top of each detection line 202 is provided with an insulating handle 203. The top of each insulating handle 203 is equipped with a detection head 204. The pulling mechanism 3 includes a fixed angle plate 301. The back of the fixed angle plate 301 is equipped with symmetrical fixed blocks 302. The two fixed blocks 302 are close to each other and are equipped with a pull handle 303. The front of the fixed angle plate 301 is equipped with a positioning seat 304. The front of the positioning seat 304 is provided with a slot 305. Through the cooperation of the fault detector 201 and the detection head 204, it is convenient to perform fault detection on the corresponding mechanism of the photovoltaic power station. By using the cooperation of the positioning seat 304 and the slot 305, it is convenient to insert the clamping rod 10 into the slot 305 to achieve the effect of positioning the cover plate 8. The heat dissipation effect is better when the cover plate 8 is open for testing. Through the cooperation of the fixed angle plate 301 and the pull handle 303, it is convenient for the staff to pull the device.

[0024] The upper surface of the protective box 4 is provided with a cover plate 8, and symmetrical positioning blocks 9 are fixedly connected to the upper surface of the cover plate 8. The two positioning blocks 9 are fixedly connected to a locking rod 10 on their adjacent sides. A protective cover 11 is installed on the front of the protective box 4. A controller 12 is installed inside the protective cover 11. A display screen 13 is provided on the front of the controller 12. Four support legs 14 are installed on the bottom surface of the base plate 1. Each support leg 14 is equipped with a brake caster 15 at its bottom end. The protective cover 11 can protect the controller 12. The cooperation between the controller 12 and the display screen 13 makes it convenient for the staff to control the device. The cooperation between the support legs 14 and the brake caster 15 makes it convenient for the staff to move the device, further facilitating the carrying of the device.

[0025] The working principle of this utility model is as follows:

[0026] In use, first connect the device to the corresponding power supply. Then, with the cooperation of the support leg 14 and the brake caster 15, place the device stably in a suitable position. Control the device with the cooperation of the controller 12 and the display screen 13. Then, with the cooperation of the support column 5 and the ventilation hole 7, the bottom of the fault detector 201 can be cooled. The heat dissipation groove 16 can be used to dissipate heat inside the protective box 4. The dustproof net 17 can prevent external dust from entering the interior of the protective box 4. With the cooperation of the fault detector 201 and the detection head 204, it is convenient to detect faults in the corresponding mechanism of the photovoltaic power station. With the cooperation of the positioning seat 304 and the slot 305, it is convenient to insert the clamping rod 10 into the slot 305 to achieve the effect of positioning the cover plate 8. Opening the cover plate 8 for testing provides better heat dissipation. With the cooperation of the fixed corner plate 301 and the handle 303, it is convenient for the staff to pull the device.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fault detection device for a photovoltaic power plant, characterized in that: Includes a base plate (1), on the upper surface of the base plate (1) a protective box (4) is installed, inside the protective box (4) a detection mechanism (2) is provided, on the back of the protective box (4) a pulling mechanism (3) is installed, the inner bottom wall of the protective box (4) is fixedly connected with support columns (5) arranged at equal intervals, and a support plate (6) is installed at the top of each support column (5), and the upper surface of the support plate (6) is provided with ventilation holes (7) arranged at equal intervals.

2. The fault detection device for a photovoltaic power station according to claim 1, characterized in that: The detection mechanism (2) includes a fault detector (201), which is installed on the upper surface of the support plate (6). The output end of the fault detector (201) is equipped with two detection lines (202). The top of each of the two detection lines (202) is provided with an insulating handle (203), and the top of each of the two insulating handles (203) is equipped with a detection head (204).

3. The fault detection device for a photovoltaic power station according to claim 1, characterized in that: The pulling mechanism (3) includes a fixed angle plate (301), on the back of the fixed angle plate (301) are symmetrical fixed blocks (302), and the two fixed blocks (302) are mounted together on one side close to each other. A pull handle (303) is mounted on the front of the fixed angle plate (301), and a positioning seat (304) is mounted on the front of the positioning seat (304). A slot (305) is opened on the front of the positioning seat (304).

4. The fault detection device for a photovoltaic power station according to claim 1, characterized in that: The upper surface of the protective box (4) is provided with a cover plate (8), and the upper surface of the cover plate (8) is fixedly connected with symmetrical positioning blocks (9). The two positioning blocks (9) are fixedly connected with a locking rod (10) on their side that is close to each other.

5. The fault detection device for a photovoltaic power station according to claim 1, characterized in that: The protective box (4) is equipped with a protective cover (11) on the front, and a controller (12) is installed inside the protective cover (11). The controller (12) has a display screen (13) on the front.

6. The fault detection device for a photovoltaic power station according to claim 1, characterized in that: The bottom surface of the base plate (1) is equipped with four support legs (14), and each support leg (14) is equipped with a brake caster (15) at its bottom end. The outer surface of the protective box (4) is provided with symmetrical heat dissipation grooves (16), and the inner walls of the two heat dissipation grooves (16) are equipped with dustproof nets (17).

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