Electric leakage detection device for inverter

Abstract

The utility model discloses an electric leakage detection device for an inverter, which relates to the technical field of inverter detection and comprises a fixed rod, a movable rod is inserted into the top end of the fixed rod, a first motor is fixed at the inner bottom of the fixed rod, a driving rod is fixed on a crankshaft of the first motor, and the driving rod is inserted into the movable rod in a threaded manner. A bump in vertical sliding fit with the inner wall of the fixed rod is fixed on the side surface of the lower end of the movable rod; the top end of the movable rod extends out of the top end of the fixed rod and is rotatably provided with a rotating plate, one end, away from the movable rod, of the rotating plate is elastically provided with an electric leakage detection pen, a control groove is formed in the middle of the rotating plate, a second motor is fixed to the top end of the movable rod, and a motor shaft of the second motor horizontally penetrates through the top end of the movable rod and is fixedly provided with a rotating disc. According to the utility model, a worker can be assisted to carry out electric leakage detection on an inverter at a high position, climbing operation of the worker is not needed, the detection efficiency can be improved, and safety risks during climbing operation can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of inverter detection, in particular to a leakage detection device for an inverter. Background Art

[0002] The inverter can convert the variable DC voltage generated by the photovoltaic solar panel into AC power at the mains frequency, which can be fed back to the commercial power transmission system or used for off-grid power grids. The inverter consists of an inverter bridge, control logic and filter circuit. Before use and during long-term use, it is necessary to use a leakage detection device to detect it to ensure the normal use of the photovoltaic inverter.

[0003] At present, a Chinese patent with publication number CN219609187U discloses a leakage test device for a new energy inverter, including a grip rod, a conductive rod fixedly installed on one side of the grip rod, a support plate fixedly installed on one side of the conductive rod, and an inner plate installed on one side of the support plate; a guide groove is opened in the middle of the support plate, and the inner plate is movably inserted in the guide groove. The utility model is provided with an iron block, an electromagnet and a tension spring. During the use of the leakage test device for the new energy inverter, the grip rod can be held and the electromagnet is turned on. The electromagnet is energized to adsorb the iron block on one side, and the contact is in a retracted state. Then, the two sets of side plates are located outside the inverter. At this time, the side plate position is maintained, and the electromagnet is turned off. The tension spring gives the iron block a force, so that multiple sets of contacts are respectively against the concave and convex areas at various places on the outside of the inverter. Compared with the existing leakage test device, there is no need to move the conductive rod to perform multi-point leakage detection on the surface of the inverter, which effectively improves the efficiency of leakage and leakage detection.

[0004] The above-mentioned prior art is more efficient than the traditional technology using an electric pen for detection. However, during use, this prior art needs to be manually operated by holding a handle, and some photovoltaic inverters are installed at a high position, which requires workers to use tools such as ladders to climb up to operate, which not only affects work efficiency, but also poses a safety hazard.

[0005] To this end, the present application provides a leakage detection device for an inverter to solve the above technical problems. Utility Model Content

[0006] The purpose of the present application is to provide a leakage detection device for an inverter, which can assist workers in performing leakage detection on inverters at high places without the need for workers to climb up to operate. This can not only improve the detection efficiency, but also avoid the safety risks that exist during high-altitude operations.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solution: a leakage detection device for an inverter, comprising a fixed rod, a movable rod is inserted into the top of the fixed rod, a first motor is fixed to the bottom of the fixed rod, a drive rod is fixed to the shaft of the first motor, the drive rod is threadedly inserted into the inside of the movable rod, and a convex block that vertically slides with the inner wall of the fixed rod is fixed to the side surface of the lower end of the movable rod;

[0008] The top end of the movable rod extends out of the top end of the fixed rod and is rotatably installed with a rotating plate. A leakage detection pen is elastically installed on the end of the rotating plate away from the movable rod, and a control groove is opened in the middle of the rotating plate. A second motor is fixed to the top end of the movable rod, and the shaft of the second motor horizontally passes through the top end of the movable rod and is fixed with a rotating disk. A control protrusion is fixed on the edge of the rotating disk, and the control protrusion is slidably embedded in the control groove.

[0009] As a further preferred solution, a control button is installed on the surface of the fixing rod, and the control button is electrically connected to the first motor and the second motor respectively.

[0010] As a further preferred solution, a handle is fixed to the bottom of the fixing rod, and a power source for supplying power to the first motor and the second motor is provided in the handle.

[0011] As a further preferred embodiment, the top of the movable rod is provided with a slot for fixing the second motor, and the lower end of the rotating plate is rotatably installed in the downward position of the slot at the top of the movable rod, and the top of the rotating plate extends out of the top of the movable rod.

[0012] As a further preferred solution, the leakage detection pen vertically penetrates the end of the rotating plate away from the movable rod, and a leakage detection contact for contacting the surface of the inverter housing is installed at one end of the leakage detection pen.

[0013] As a further preferred solution, a warning device is installed at one end of the leakage detection pen away from the leakage detection contact, and the warning device includes an indicator light and a buzzer.

[0014] As a further preferred solution, a spring is sleeved on the leakage detection pen, one end of the spring is fixed to the rotating plate, and the other end of the spring is fixed to the leakage detection contact.

[0015] In summary, the technical effects and advantages of the utility model are:

[0016] Thanks to the cooperation of the fixed rod, the first motor, the driving rod and the movable rod, the utility model can drive the driving rod to rotate by the first motor, so that the driving rod can drive the movable rod to telescope and adjust at the top end of the fixed rod, so that the staff can easily extend the leakage detection pen arranged at the top end of the movable rod to the high surface of the inverter housing. At the same time, with the cooperation of the rotating plate, the second motor, the rotating disk and the leakage detection pen, the rotating disk can be driven to rotate by the second motor, and the rotating plate is driven by the rotating disk to rotate at the top end of the movable rod, so that the leakage detection pen can move on the surface of the inverter housing, thereby assisting the staff to perform leakage detection on the inverter, without the need for the staff to climb for detection, which can not only improve the detection efficiency but also avoid the safety risks existing in the climbing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the fixed rod and the movable rod of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the rotating plate of the utility model;

[0021] Figure 4 The utility model is a schematic diagram of the structure of the rotating disk, the rotating plate and the leakage detection pen.

[0022] In the figure: 1. fixed rod; 101. control button; 102. first motor; 103. driving rod; 2. handle; 3. movable rod; 4. rotating plate; 401. control slot; 5. second motor; 6. rotating disk; 601. control bump; 7. leakage detection pen; 701. leakage detection contact; 702. spring; 8. warning device. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example: Reference Figure 1 and Figure 2 The leakage detection device for the inverter shown includes a fixed rod 1, a movable rod 3 is inserted into the top end of the fixed rod 1, and a first motor 102 is fixed to the bottom of the fixed rod 1, a drive rod 103 is fixed to the shaft of the first motor 102, and the drive rod 103 is threadedly inserted into the interior of the movable rod 3, and a protrusion that vertically slides with the inner wall of the fixed rod 1 is fixed to the lower end side of the movable rod 3, so that the drive rod 103 can be driven to rotate by starting the first motor 102 to control the movable rod 3 to be telescopic, raised and lowered at the top end of the fixed rod 1, thereby facilitating the top end of the movable rod 3 to be extended to the high surface of the inverter housing.

[0025] Cooperate Figure 3 and Figure 4 As shown, the top end of the movable rod 3 extends out of the top end of the fixed rod 1, and a rotating plate 4 is rotatably installed. The end of the rotating plate 4 away from the movable rod 3 is elastically installed with a leakage detection pen 7, and a control groove 401 is opened in the middle of the rotating plate 4. A second motor 5 is fixed to the top end of the movable rod 3. The shaft of the second motor 5 horizontally passes through the top end of the movable rod 3 and is fixed with a rotating disk 6. A control protrusion 601 is fixed on the edge of the rotating disk 6, and the control protrusion 601 is slidably embedded in the control groove 401.

[0026] In a specific implementation, the top of the movable rod 3 is provided with a slot for fixing the second motor 5, and the lower end of the rotating plate 4 is rotatably mounted at a position where the slot at the top of the movable rod 3 is downward, and the top of the rotating plate 4 extends out of the top of the movable rod 3. Therefore, the rotating disk 6 can be driven to rotate by the second motor 5, and the rotating plate 4 can be driven to rotate at the top of the movable rod 3 by the cooperation of the control protrusion 601 and the control groove 401.

[0027] The leakage detection pen 7 vertically penetrates the end of the rotating plate 4 away from the movable rod 3, and a leakage detection contact 701 for contacting the surface of the inverter housing is installed at one end of the leakage detection pen 7, and a warning device 8 is installed at the other end of the leakage detection pen 7. The warning device 8 includes an indicator light and a buzzer, and can be used to warn of leakage through the warning device 8 when the leakage detection contact 701 detects the amount of electricity. Specifically, a spring 702 is sleeved on the leakage detection pen 7, one end of the spring 702 is fixed on the rotating plate 4, and the other end is fixed on the leakage detection contact 701, so that the leakage detection pen 7 is elastically installed on the top of the rotating plate 4.

[0028] In addition, in this embodiment, a control button 101 is installed on the surface of the fixed rod 1, and the control button 101 is electrically connected to the first motor 102 and the second motor 5 respectively, and a handle 2 is fixed to the bottom of the fixed rod 1, and a power supply for powering the first motor 102 and the second motor 5 is provided in the handle 2.

[0029] Working principle of the utility model: when using the leakage detection device for the inverter, the staff can hold the handle 2 to control the first motor 102 to start through the control button 101, and the first motor 102 drives the driving rod 103 to rotate, so that the driving rod 103 can control the movable rod 3 to be telescopic and raised at the top of the fixed rod 1, so that the staff can extend the leakage detection pen 7 set at the top of the movable rod 3 to the position of the surface of the inverter housing at a high place.

[0030] At the same time, the second motor 5 can be started to drive the rotating disk 6 to rotate, and the sliding cooperation between the control protrusion 601 and the control groove 401 can be used to drive the rotating plate 4 to rotate, so that the leakage detection pen 7 can move on the surface of the inverter housing, thereby assisting the staff to perform leakage detection on the inverter. There is no need for the staff to climb up for detection, which not only improves the detection efficiency, but also avoids the safety risks existing in high-altitude operations.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A leakage detection device for an inverter, comprising a fixing rod (1), characterized in that: A movable rod (3) is inserted into the top end of the fixed rod (1), and a first motor (102) is fixed to the bottom of the fixed rod (1). A driving rod (103) is fixed to the shaft of the first motor (102). The driving rod (103) is threadedly inserted into the inside of the movable rod (3). A protrusion that vertically slides with the inner wall of the fixed rod (1) is fixed to the side surface of the lower end of the movable rod (3); The top end of the movable rod (3) extends out of the top end of the fixed rod (1) and is rotatably mounted with a rotating plate (4); an end of the rotating plate (4) away from the movable rod (3) is elastically mounted with a leakage detection pen (7); and a control groove (401) is provided in the middle of the rotating plate (4); a second motor (5) is fixed to the top end of the movable rod (3); the shaft of the second motor (5) horizontally passes through the top end of the movable rod (3) and is fixed with a rotating disk (6); a control protrusion (601) is fixed to the edge of the rotating disk (6); and the control protrusion (601) is slidably embedded in the control groove (401).

2. The leakage detection device for inverter according to claim 1, characterized in that: A control button (101) is installed on the surface of the fixing rod (1), and the control button (101) is electrically connected to the first motor (102) and the second motor (5) respectively.

3. The leakage detection device for inverter according to claim 2, characterized in that: A handle (2) is fixed to the bottom of the fixed rod (1), and a power source for supplying power to the first motor (102) and the second motor (5) is arranged inside the handle (2).

4. The leakage detection device for inverter according to claim 1, characterized in that: The top end of the movable rod (3) is provided with a slot for fixing the second motor (5), and the lower end of the rotating plate (4) is rotatably mounted at a position where the slot at the top end of the movable rod (3) faces downward, and the top end of the rotating plate (4) extends out of the top end of the movable rod (3).

5. The leakage detection device for inverter according to claim 1, characterized in that: The leakage detection pen (7) vertically penetrates one end of the rotating plate (4) away from the movable rod (3), and one end of the leakage detection pen (7) is equipped with a leakage detection contact (701) for contacting the surface of the inverter housing.

6. The leakage detection device for inverter according to claim 5, characterized in that: A warning device (8) is installed at one end of the leakage detection pen (7) away from the leakage detection contact (701), and the warning device (8) comprises an indicator light and a buzzer.

7. The leakage detection device for inverter according to claim 5, characterized in that: The leakage detection pen (7) is sleeved with a spring (702), one end of the spring (702) is fixed on the rotating plate (4), and the other end is fixed on the leakage detection contact (701).

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