Photovoltaic power station electric leakage detection device

Abstract

The utility model discloses an electric leakage detection device for a photovoltaic power station, and belongs to the technical field of electric leakage detection devices. Comprising a walking vehicle and a universal meter, the universal meter is installed at the top end of the walking vehicle, a manipulator is installed at the top end of the walking vehicle on one side of the universal meter, a supporting arm is installed at the top end of the manipulator, a telescopic arm is slidably arranged in the supporting arm, and an integrated frame is installed at the end, away from the supporting arm, of the telescopic arm; an electric push rod is movably installed in the integrated frame, a push arm is installed at the output end of the electric push rod, a linkage arm is movably installed at the end, away from the electric push rod, of the push arm, and an adjusting arm is movably installed on the outer wall of the integrated frame. According to the utility model, convenient and flexible adjustment is realized to adapt to different electric leakage positions, different electric leakage positions can be conveniently detected, the occurrence of electric shock injury caused by manual detection is reduced, and the detection safety and the use flexibility are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of leakage current detection devices, specifically a leakage current 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 like inverters. It is connected to the power grid and transmits electricity to it. As a green energy source in my country, PV power stations are susceptible to damage if they leak electricity during operation. Therefore, PV power stations typically have leakage detection devices. These devices, such as multimeters, are used to periodically check the power transmission facilities for leakage. Traditionally, when leakage occurs, the detection method involves manual testing with a handheld voltage tester or multimeter, which carries a high risk of injury. To address this issue, a PV power station leakage detection device is proposed.

[0003] As disclosed in the authorization announcement number CN219122376U, a photovoltaic power station leakage current detection device includes a protection box. Guide grooves are respectively opened on the inner walls of both sides of the protection box. A movable plate is slidably connected to the inner wall of the guide groove. A connecting rod is rotatably connected to the outer wall of one side of the movable plate. A multimeter is fixed to the outer wall of one side of the connecting rod. A detection probe is installed on the inner wall of the protection box. A sealing cover is connected to the outer wall of the top of the protection box via a hinge. A signal interface is installed on the outer wall of one side of the multimeter. The detection probe is communicatively connected to the signal interface via a signal transmission line. A set of connecting plates is fixed to the outer wall of one side of the multimeter. A support frame is rotatably connected to the outer wall of one side of the connecting plates via a damping shaft. Multiple locking teeth are provided on the inner wall of the bottom of the protection box. An L-shaped baffle is fixed to the outer wall of one side of the multimeter.

[0004] While it effectively prevents damage to the multimeter and test probe from external natural factors such as sunlight, wind, and rain, it does not solve the problem that existing leakage current detection devices are not convenient to adjust and adapt to different leakage locations during use, which is not conducive to detecting different leakage locations and reducing the occurrence of electric shock injuries during manual detection, thus affecting the safety and flexibility of use during detection. Utility Model Content

[0005] The purpose of this utility model is to provide a leakage current detection device for photovoltaic power stations, so as to solve the problems mentioned in the background art, which are not convenient and flexible to adjust and adapt to different leakage current locations, which is not conducive to detecting different leakage current locations and reducing the occurrence of electric shock injuries during manual detection, thus affecting the safety and flexibility of use during detection.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A leakage current detection device for a photovoltaic power station includes a traveling vehicle and a multimeter. The multimeter is mounted on the top of the traveling vehicle, and a robotic arm is mounted on the top of the traveling vehicle on one side of the multimeter. A support arm is mounted on the top of the robotic arm, and a telescopic arm is slidably arranged inside the support arm. An integrated frame is mounted on the end of the telescopic arm away from the support arm, and an electric push rod is movably mounted inside the integrated frame. A push arm is mounted on the output end of the electric push rod.

[0008] Optionally, a linkage arm is movably mounted on the end of the push arm away from the electric push rod, and an adjustment arm is movably mounted on the outer wall of the integrated frame.

[0009] Optionally, the adjusting arm is connected to the linkage arm, and a drive seat is installed on the side wall of the linkage arm.

[0010] Optionally, a drive motor is mounted on the outer wall of the drive base, and a worm gear is mounted on the output end of the drive motor.

[0011] Optionally, a drive shaft is movably mounted inside the drive seat on one side of the worm gear, and the drive shaft extends to the outside of the drive seat.

[0012] Optionally, an adjustment frame is provided on the outside of the drive seat, and the adjustment frame is connected to the drive shaft.

[0013] Optionally, a worm gear is fitted onto the surface of the drive shaft, and the worm gear meshes with the worm.

[0014] Optionally, a bidirectional lead screw is movably installed inside the adjustment frame, and a servo motor is installed on the outer wall of the adjustment frame, with the output end of the servo motor connected to the bidirectional lead screw.

[0015] Optionally, the surface of the bidirectional lead screw is fitted with two sets of threaded sleeves, and the threaded sleeves are threadedly connected to the bidirectional lead screw.

[0016] Optionally, each of the threaded sleeves has a placement block installed on its side wall, and each placement block has a test pin installed inside, and the test pin is connected to a multimeter via a cable.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the leakage current detection device not only realizes convenient and flexible adjustment to adapt to different leakage current locations, making it easier to detect different leakage current locations and reducing the occurrence of electric shock injuries during manual detection, but also improves the safety and flexibility of use during detection.

[0018] When a leakage occurs at a point within a photovoltaic power station, a trolley can be pushed to move the entire device to the leakage location. Then, a robotic arm is operated to move the support arm, telescopic arm, drive seat, adjustment frame, and detection probes to the leakage location. An electric push rod moves the push arm, which in turn rotates the linkage arm, which in turn rotates the drive seat, adjustment frame, and detection probes, bringing the two sets of detection probes into contact with the leakage location. The detection probes are connected to a multimeter via wiring, displaying the leakage current on the multimeter, thus completing the detection of the leakage location. This device reduces the need for manual handheld detection of leakage locations, effectively preventing electric shock injuries to personnel, and significantly improving safety during detection.

[0019] When the detection position needs to be adjusted, the drive motor drives the worm gear to rotate, which in turn drives the worm wheel to rotate. The worm wheel then drives the drive shaft, adjustment frame, and detection pin to rotate, thereby adjusting the position of the detection pin. A servo motor drives a bidirectional lead screw to rotate, which in turn moves two sets of threaded sleeves towards or opposite each other. These threaded sleeves, through a placement block, move the detection pins towards or opposite each other, thus adjusting the distance between the two sets of detection pins and further adjusting their position. This allows for convenient and flexible adjustment to adapt to different leakage locations, facilitating the detection of various leakage points and improving detection flexibility. Attached Figure Description

[0020] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the detection needle of this utility model;

[0023] Figure 3 This is a front cross-sectional view of the integrated frame of this utility model.

[0024] Figure 4 This is a side sectional view of the adjustment frame of this utility model.

[0025] Figure 5 This is a side view sectional structural diagram of the drive seat of this utility model.

[0026] Figure label:

[0027] 1. Walking vehicle; 2. Multimeter; 3. Robotic arm; 4. Support arm; 5. Integrated frame; 6. Linkage arm; 7. Drive base; 8. Adjustment frame; 9. Threaded sleeve; 10. Placement block; 11. Detection probe; 12. Adjustment arm; 13. Push arm; 14. Electric push rod; 15. Drive shaft; 16. Worm gear; 17. Telescopic arm; 18. Two-way lead screw; 19. Servo motor; 20. Drive motor; 21. Worm gear.

[0028] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0029] The following is a detailed description of a photovoltaic power station leakage detection device provided by this utility model, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0030] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0031] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0032] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0033] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0034] like Figures 1 to 5 As shown, an embodiment of this utility model provides a photovoltaic power station leakage detection device, including a traveling vehicle 1 and a multimeter 2. The multimeter 2 is installed on the top of the traveling vehicle 1. A robotic arm 3 is installed on the top of the traveling vehicle 1 on one side of the multimeter 2. A support arm 4 is installed on the top of the robotic arm 3. A telescopic arm 17 is slidably arranged inside the support arm 4. An integrated frame 5 is installed at the end of the telescopic arm 17 away from the support arm 4. An electric push rod 14 is movably installed inside the integrated frame 5. The electric push rod 14 serves as a power drive. A push arm 13 is installed at the output end of the electric push rod 14. A linkage arm 6 is movably installed at the end of the push arm 13 away from the electric push rod 14. An adjusting arm 12 is movably installed on the outer wall of the integrated frame 5 and is connected to the linkage arm 6. A drive seat 7 is installed on the side wall of the linkage arm 6.

[0035] When a leakage occurs at a point within the photovoltaic power station, the traveling vehicle 1 can be pushed to move the entire device to the leakage location. Then, the robotic arm 3 is operated to move the support arm 4, telescopic arm 17, drive seat 7, adjustment frame 8, and detection needle 11 to the leakage location. Next, the electric push rod 14 is activated, causing the push arm 13 to move. With the support of the adjusting arm 12, the push arm 13 drives the linkage arm 6 to rotate, which in turn drives the drive seat 7, adjustment frame 8, and detection needle 11 to rotate, allowing the two sets of detection needles 11 to contact the leakage location. The detection needles 11 are connected to a multimeter 2 via wiring, displaying the leakage current on the multimeter 2, thus completing the detection of the leakage location. This device reduces the need for manual handling of the detection needles 11 to detect leakage locations, effectively preventing electric shock injuries and improving safety during detection.

[0036] A drive motor 20 is installed on the outer wall of the drive seat 7. The drive motor 20 plays the role of power drive. A worm gear 21 is installed at the output end of the drive motor 20. A drive shaft 15 is movably installed inside the drive seat 7 on one side of the worm gear 21, and the drive shaft 15 extends to the outside of the drive seat 7.

[0037] An adjustment frame 8 is provided on the outside of the drive base 7, and the adjustment frame 8 is connected to the drive shaft 15. A worm gear 16 is fitted on the surface of the drive shaft 15, and the worm gear 16 meshes with the worm 21. A bidirectional lead screw 18 is movably installed inside the adjustment frame 8. A servo motor 19 is installed on the outer wall of the adjustment frame 8. The servo motor 19 plays the role of power drive, and the output end of the servo motor 19 is connected to the bidirectional lead screw 18.

[0038] Two sets of threaded sleeves 9 are fitted on the surface of the bidirectional lead screw 18, and the threaded sleeves 9 are threadedly connected to the bidirectional lead screw 18. Each threaded sleeve 9 has a placement block 10 installed on its side wall, and each placement block 10 has a test needle 11 installed inside it. The test needle 11 is connected to the multimeter 2 via a cable.

[0039] When the detection position needs to be adjusted, the drive motor 20 is turned on, which drives the worm gear 21 to rotate. Under the mutual meshing of the worm gear 21 and the worm wheel 16, the worm gear 21 drives the worm wheel 16 to rotate, which in turn drives the drive shaft 15, the adjustment frame 8, and the detection needle 11 to rotate, thereby adjusting the position of the detection needle 11. Then, the servo motor 19 is turned on, which drives the bidirectional lead screw 18 to rotate. Under the threaded connection between the bidirectional lead screw 18 and the threaded sleeve 9, the bidirectional lead screw 18 drives the two sets of threaded sleeves 9 to move towards or opposite each other. The threaded sleeves 9 drive the detection needle 11 to move towards or opposite each other through the placement block 10, thereby adjusting the distance between the two sets of detection needles 11 and further adjusting the position of the detection needle 11. This allows for the detection of different leakage current locations, realizing convenient and flexible adjustment to adapt to different leakage current locations, facilitating the detection of different leakage current locations, and improving the flexibility of detection.

[0040] The working principle of the technical solution provided by this utility model is as follows: When a leakage occurs at a certain point in the photovoltaic power station, the traveling vehicle 1 can be pushed to move the entire device to the leakage location. Then, the robotic arm 3 is operated to move the support arm 4, telescopic arm 17, drive seat 7, adjustment frame 8, and detection needle 11 to the leakage location. The electric push rod 14 drives the push arm 13 to move, which in turn drives the linkage arm 6 to rotate. The linkage arm 6 then drives the drive seat 7, adjustment frame 8, and detection needle 11 to rotate, so that the two sets of detection needles 11 come into contact with the leakage location. The detection needles 11 are connected to a multimeter 2 through a circuit, and the leakage current is displayed on the multimeter 2, thereby completing the detection of the leakage location. This device can reduce the need for manual handling of the detection needles 11 to check the leakage potential. In the case of detection, it can effectively avoid electric shock injury to personnel. When the detection position needs to be adjusted, the drive motor 20 drives the worm gear 21 to rotate, the worm gear 21 drives the worm wheel 16 to rotate, and the worm wheel 16 drives the drive shaft 15, the adjustment frame 8 and the detection needle 11 to rotate, thereby adjusting the position of the detection needle 11. The servo motor 19 drives the bidirectional lead screw 18 to rotate, and the bidirectional lead screw 18 drives the two sets of threaded sleeves 9 to move towards or opposite each other. The threaded sleeves 9 drive the detection needles 11 to move towards or opposite each other through the placement block 10, thereby adjusting the distance between the two sets of detection needles 11, and further adjusting the position of the detection needles 11, so as to detect different leakage locations. The above is the complete usage of the photovoltaic power station leakage detection device.

[0041] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A leakage current detection device for a photovoltaic power station, comprising a mobile vehicle and a multimeter, characterized in that: A multimeter is mounted on the top of the traveling vehicle. A robotic arm is mounted on the top of the traveling vehicle on one side of the multimeter. A support arm is mounted on the top of the robotic arm. A telescopic arm is slidably arranged inside the support arm. An integrated frame is mounted on the end of the telescopic arm away from the support arm. An electric push rod is movably installed inside the integrated frame. A push arm is mounted on the output end of the electric push rod.

2. The photovoltaic power station leakage detection device according to claim 1, characterized in that: A linkage arm is movably mounted on the end of the push arm away from the electric push rod, and an adjustment arm is movably mounted on the outer wall of the integrated frame.

3. The photovoltaic power station leakage detection device according to claim 2, characterized in that: The adjusting arm is connected to the linkage arm, and a drive seat is installed on the side wall of the linkage arm.

4. The photovoltaic power station leakage detection device according to claim 3, characterized in that: A drive motor is mounted on the outer wall of the drive base, and a worm gear is mounted on the output end of the drive motor.

5. The photovoltaic power station leakage detection device according to claim 4, characterized in that: A drive shaft is movably mounted inside the drive seat on one side of the worm gear, and the drive shaft extends to the outside of the drive seat.

6. The photovoltaic power station leakage current detection device according to claim 5, characterized in that: An adjustment frame is provided on the outside of the drive seat, and the adjustment frame is connected to the drive shaft.

7. The photovoltaic power station leakage detection device according to claim 6, characterized in that: The surface of the drive shaft is fitted with a worm gear, and the worm gear meshes with the worm.

8. The photovoltaic power station leakage detection device according to claim 7, characterized in that: A bidirectional lead screw is movably installed inside the adjustment frame, and a servo motor is installed on the outer wall of the adjustment frame, with the output end of the servo motor connected to the bidirectional lead screw.

9. The photovoltaic power station leakage current detection device according to claim 8, characterized in that: The surface of the bidirectional lead screw is fitted with two sets of threaded sleeves, and the threaded sleeves are threadedly connected to the bidirectional lead screw.

10. The photovoltaic power station leakage current detection device according to claim 9, characterized in that: Each threaded sleeve has a placement block installed on its side wall, and each placement block has a test probe installed inside it. The test probe is connected to a multimeter via a cable.

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