CN218240363U - Wet subassembly and system for electric leakage detection - Google Patents

Abstract

The application relates to the field of electric leakage detection, and discloses a wet electric leakage detects uses subassembly and system, includes: the photovoltaic module testing device comprises a groove body, a testing device and a testing device, wherein the groove body is used for accommodating a junction box and a connector of a photovoltaic module to be tested, and the groove body is provided with a testing hole for introducing a testing connector of a wet leakage testing device; the fixing part is used for fixing the groove body on the back face of the photovoltaic assembly to be measured. This application is wet for electric leakage detection subassembly, the back at the photovoltaic module that awaits measuring is fixed with the cell body to the fixed portion, directly places the terminal box and the connector of the photovoltaic module that awaits measuring in the cell body and tests. When carrying out wet electric leakage and detecting, because the cell body is fixed at the photovoltaic module's that awaits measuring the back, so can directly test at the project ground, need not to dismantle and assemble photovoltaic array, not only can use manpower sparingly and material resources, can reduce test cost moreover, and the terminal box is certain inclination and immerses completely in the aquatic, and the possibility that water got into the terminal box bottom increases, and is stricter to the requirement of terminal box, makes the detection accuracy promote.

Description

Wet subassembly and system for electric leakage detection

Technical Field

The present application relates to the field of electrical leakage detection, and more particularly, to a wet electrical leakage detection assembly and system.

Background

When photovoltaic module installs the use on photovoltaic power plant, because environmental factors such as sunshine, rainwater, chemicals probably lead to photovoltaic module ageing, in the electric leakage problem of power station end outbreak, backstage monitored control system can send the suggestion of reporting to the police, need carry out wet electric leakage detection to photovoltaic module this moment. Because only the photovoltaic array with electric leakage can be identified at present, and the specific photovoltaic array cannot be accurately determined to have the electric leakage, the whole photovoltaic array needs to be disassembled, then the photovoltaic modules are transported to a laboratory from a project place for wet electric leakage detection, and the photovoltaic modules are assembled after the detection is finished. In the process of disassembling and assembling the photovoltaic array and transporting the photovoltaic module, a large amount of manpower and material resources are consumed, so that the cost of the wet leakage test is high.

Therefore, how to solve the above technical problems should be a great concern to those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a wet electric leakage detects uses subassembly and system to reduce wet electric leakage test cost, promote wet electric leakage and detect the accuracy.

In order to solve the above technical problem, the present application provides an assembly for wet leakage detection, including:

the photovoltaic module testing device comprises a groove body, a testing device and a testing device, wherein the groove body is used for accommodating a junction box and a connector of a photovoltaic module to be tested, and the groove body is provided with a testing hole for introducing a testing connector of a wet leakage testing device;

the fixing part is used for fixing the groove body on the back face of the photovoltaic module to be detected.

Optionally, the method further includes:

and the flexible sealing ring is arranged at the opening of the groove body and is used for contacting with the back surface of the photovoltaic module to be tested.

Optionally, the fixed part is an elastic insulation frame provided with a first through hole, a second through hole is formed in the bottom of the groove body, the elastic insulation frame is connected with the bottom of the groove body through a connecting piece, the first through hole and the second through hole are fixed, and two ends of the elastic insulation frame are used for being clamped on the inner side of the frame of the photovoltaic assembly to be tested.

Optionally, the fixed part is the elastic insulation frame that is equipped with the draw-in groove, the bottom of cell body is equipped with the projection, the elastic insulation frame passes through the draw-in groove and the projection is fixed the bottom of cell body, the both ends of elastic insulation frame are used for the card to be in the inboard of the photovoltaic module frame that awaits measuring.

Optionally, the fixing portion is at least one of an elastic band, a binding band with a buckle, and an adhesive tape.

Optionally, the flexible sealing ring and the groove body are of an integrated structure.

Optionally, the side wall of the tank body is provided with a water discharge hole and a piston matched with the water discharge hole.

Optionally, the side wall of the tank body is provided with a water inlet hole.

Optionally, the method further includes:

and the temperature sensor is arranged on the inner side of the tank body and is used for measuring the temperature of the liquid in the tank body.

The application also provides a wet leakage detection system, includes: a wet leakage test device and any one of the above-described assemblies for wet leakage detection.

The application provides a wet subassembly for electric leakage detection includes: the photovoltaic module testing device comprises a groove body, a testing device and a testing device, wherein the groove body is used for accommodating a junction box and a connector of a photovoltaic module to be tested, and the groove body is provided with a testing hole for introducing a testing connector of a wet leakage testing device; the fixing part is used for fixing the groove body on the back face of the photovoltaic module to be detected.

It can be seen that this application is wet for electric leakage detection subassembly includes cell body and fixed part, and the fixed part is fixed the cell body at the photovoltaic module's that awaits measuring back, directly places the terminal box and the connector of photovoltaic module that awaits measuring in the cell body and tests. Therefore, when the photovoltaic module to be tested is subjected to wet electric leakage detection, the groove body is fixed on the back of the photovoltaic module to be tested, so that the test can be directly carried out on the project place where the photovoltaic module to be tested is located, the photovoltaic array does not need to be disassembled and assembled, the photovoltaic module to be tested does not need to be transported to a laboratory from the project place, manpower and material resources can be saved, the test cost of the wet electric leakage detection can be reduced, and meanwhile, the influence on the generated energy of the whole power station is small; moreover, when the assembly is used for testing, the photovoltaic assembly with the wet leakage can be effectively checked.

In addition, the application also provides a wet leakage detection system with the advantages.

Drawings

In order to clearly illustrate the embodiments or technical solutions of the present application, the drawings used in the embodiments or technical solutions of the present application will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a side view of a wet electrical leakage detection assembly provided in accordance with an embodiment of the present application as tested on a photovoltaic assembly;

FIG. 2 is a schematic diagram of the wet electrical leakage detection assembly of FIG. 1 during a test process;

FIG. 3 is a side view of a wet electrical leakage detection module provided by an embodiment of the present application as tested on another photovoltaic module;

FIG. 4 is a schematic structural diagram of the wet leakage detection assembly shown in FIG. 3 during a testing process;

FIG. 5 is a schematic structural view of a module for detecting wet leakage according to an embodiment of the present disclosure when tested on another photovoltaic module;

FIG. 6 is a top view of another wet electrical leakage detection module provided in an embodiment of the present disclosure on a photovoltaic module;

FIG. 7 is a cross-sectional view of the wet electrical leakage detection module of FIG. 6 on a photovoltaic module;

fig. 8 is a cross-sectional view of another module for detecting wet leakage on a photovoltaic module according to an embodiment of the present disclosure.

Detailed Description

In order that those skilled in the art will better understand the disclosure, the following detailed description is given with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

As described in the background section, currently, when performing a wet leakage test, it is necessary to disassemble the whole photovoltaic array, transport the individual photovoltaic modules to a laboratory from a project site for wet leakage detection, and assemble the photovoltaic modules after the detection is completed. In the process of disassembling and assembling the photovoltaic array and transporting the photovoltaic module, a large amount of manpower and material resources are consumed, so that the cost of the wet leakage test is high.

In view of the above, the present application provides an assembly for detecting wet leakage, referring to fig. 1 to 5, including:

the groove body 1 is used for accommodating a junction box 31 and a connector 32 of a photovoltaic module 3 to be tested, and the groove body 1 is provided with a test hole 11 for introducing a test connector 41 of a wet leakage test device 4;

and the fixing part 6 is used for fixing the tank body 1 on the back of the photovoltaic module 3 to be tested.

The specific structure of the fixing portion 6 is not limited in this embodiment, as the case may be. For example, as an implementation manner, the fixing portion 6 may be at least one of an elastic band, a binding band with a buckle, and an adhesive tape, and at this time, the fixing portion 6 may be applicable to photovoltaic modules to be tested with different sizes, and is wide in application range, convenient to carry, and relatively simple to operate.

As another possible implementation manner, please refer to fig. 6 and 7, the fixing portion 6 is an elastic insulating frame 61 provided with a first through hole, and the bottom of the tank body 1 is provided with a second through hole, wherein the elastic insulating frame 61 is fixed at the bottom of the tank body 1 through a connecting member, the first through hole and the second through hole, and two ends of the elastic insulating frame 61 are used for being clamped at the inner side of the frame 33 of the photovoltaic module 3 to be measured. The elastic insulating frame 61 may include a metal plate and an insulating layer wrapped on an outer surface of the metal plate, or a single-material insulator directly made of a material having certain hardness and toughness.

In this embodiment, the connection member is not limited, for example, as shown in fig. 7, the connection member may include a shaft 9 and a nut 7, the shaft 9 passes through the first through hole and the second through hole, the nut 7 is respectively disposed inside the tank body 1 and outside the elastic insulation frame 61, the elastic insulation frame 61 is fixed to the tank body 1, two ends of the elastic insulation frame 61 are clamped inside the frame 33 of the photovoltaic module 3 to be measured, the nut 7 may be screwed to adjust the force applied to the tank body 1 by the elastic insulation frame 61, and the tank body 1 is fixed to the back of the photovoltaic module 3 to be measured. Or, the connecting piece includes screw and nut, in order to facilitate the power of applying to the cell body 1 through the elastic insulation frame 61 of nut regulation, set up the nut in the outside of elastic insulation frame 61.

Establish fixed part 6 into the elastic insulation frame 61 that is equipped with first through-hole in this embodiment, can adjust the power that elastic insulation frame 61 applyed cell body 1 through nut 7, the fixed part can be installed at the photovoltaic module's that awaits measuring back more firmly through the nut, and the mounting means is more firm and nimble.

Further, in order to prevent the liquid in the tank body 1 from leaking through the first through hole and the second through hole, a soft gasket 8 may be disposed between the second through hole on the inner side surface of the bottom of the tank body 1 and the nut 7, and the soft gasket 8 may be bonded to the tank body 1 by an adhesive. In addition, the edge of the tank body 1 can be flattened, and the elastic insulating frame 61 and the tank body 1 can be bonded together by using an adhesive to form an integrated structure.

As another possible implementation manner, please refer to fig. 8, the fixing portion 6 is an elastic insulating frame 61 provided with a clamping groove, the bottom of the tank body 1 is provided with a convex pillar 11, the elastic insulating frame 61 is fixed at the bottom of the tank body 1 through the clamping groove and the convex pillar 11, and two ends of the elastic insulating frame 61 are used for being clamped at the inner side of the frame 33 of the photovoltaic module to be measured.

The clamping grooves correspond to the convex columns 11 one by one. It should be pointed out that, do not limit the quantity to draw-in groove and projection in this application, the quantity of draw-in groove and projection can respectively be one, also can be more than two, as required set up by oneself can.

It should be noted that the fixing portion 6 may also be an elastic insulating frame with a convex pillar, the bottom of the slot body 1 is provided with a clamping slot, and the fixing portion is fixedly connected to the bottom of the slot body 1 through the matching of the clamping slot and the convex pillar.

In the embodiment, the fixing part 6 is fixed at the bottom of the groove body in a convex column and clamping groove matched mode, the operation is simple and convenient, and the problem of leakage at the bottom of the groove body can be avoided.

In order to conveniently inject liquid into the tank body 1 after the tank body 1 is contacted with the photovoltaic module 3 to be tested, the side wall of the tank body 1 is provided with a water inlet. In some embodiments, the water inlet may be the same as the test hole 11, as shown in fig. 1, and in other embodiments, the water inlet and the test hole 11 may be different holes, all of which are within the scope of the present disclosure.

Further, in order to discharge the liquid in the tank body 1, a water discharge hole 12 and a piston 5 matched with the water discharge hole 12 are formed in the side wall of the tank body 1, as shown in fig. 1. When the liquid is required to be discharged, the piston 5 is taken out from the discharge hole 12 for reuse, and when the liquid is injected, the piston 5 is closed to the discharge hole 12.

When utilizing wet electric leakage detection in this embodiment to carry out wet electric leakage test with the subassembly, cell body 1 back-off is at the back of the photovoltaic module 3 that awaits measuring, hug closely the backplate of the photovoltaic module 3 that awaits measuring, fixed part 6 is fixed cell body 1, place terminal box 31 and connector 32 in cell body 1, terminal box 31 and connector 32 fully dip in liquid (water) in the cell body 1, connector 32 is connected with a test connector 41 of wet electric leakage test equipment 4, another test wire of wet electric leakage test equipment 4 is connected with electric conductor 42, electric conductor 42 also fully dips in the liquid in cell body 1, electric conductor 42 can be the metal block, and then launch the test. During testing, the photovoltaic module 3 to be tested does not need to be detached from the photovoltaic array, and meanwhile, the assembling process after the testing is finished is also avoided.

The module application scope for wet electric leakage detection in this application is wide, both can be applicable to the vertical installation of power station photovoltaic module, is applicable to the horizontal installation of photovoltaic module again. When the photovoltaic module is vertically installed and the junction box 31 is arranged at the bottom end of the photovoltaic module, schematic diagrams in a wet leakage test process are shown in fig. 1 and fig. 2, and when the photovoltaic module is vertically installed and the junction box 31 is arranged at the top end of the photovoltaic module, schematic diagrams in a wet leakage test process are shown in fig. 3 and fig. 4; when the photovoltaic module is installed horizontally, the schematic diagram in the wet leakage test process is shown in fig. 5.

This wet for electric leakage detection subassembly include cell body and fixed part 6, and fixed part 6 is fixed cell body 1 at the back of the photovoltaic module 3 that awaits measuring, directly places the terminal box 31 and the connector 32 of the photovoltaic module 3 that awaits measuring in the cell body and tests. So, when carrying out wet electric leakage detection to the photovoltaic module 3 that awaits measuring, because cell body 1 is fixed at the back of the photovoltaic module 3 that awaits measuring, so can directly develop the test in the project ground that the photovoltaic module 3 that awaits measuring is located, need not to dismantle and assemble photovoltaic array, also need not transport the photovoltaic module 3 that awaits measuring to the laboratory from the project ground, not only can use manpower sparingly and material resources, can reduce the test cost that wet electric leakage detected in addition, the generated energy influence to whole power station is also less simultaneously.

Moreover, when the assembly for detecting the wet leakage provided by the application is used for testing, the photovoltaic array is not required to be disassembled, so that the junction box 31 can be completely immersed into water at a certain inclination angle when the photovoltaic array is obliquely placed. Therefore, the pressure of water received by different parts of the junction box 31 is different, the pressure of water received by the bottom of the junction box 31 is larger than that received by the top, and water can enter the bottom of the junction box 31 more easily. Therefore, the photovoltaic module is easy to generate the wet leakage phenomenon. Therefore, for the same junction box, by using the assembly for detecting the wet leakage, compared with the condition that the photovoltaic assembly is horizontally placed in a water tank in a laboratory, whether the wet leakage occurs to the photovoltaic assembly can be more effectively detected.

On the basis of the above embodiment, in an embodiment of the present application, the assembly for wet leakage detection further includes:

and the flexible sealing ring 2 is arranged at the opening of the groove body 1 and is used for contacting with the back surface of the photovoltaic module 3 to be tested.

In this embodiment, the flexible sealing ring 2 is not limited, and only needs to have certain flexibility and function as a sealing function, so as to prevent the liquid in the tank body 1 from leaking during the test. For example, the flexible sealing ring 2 includes, but is not limited to, a foam gasket or a silicone ring.

In order to avoid the liquid leakage in the groove body 1 caused by the movement of the flexible sealing ring 2 in the wet leakage test process, the flexible sealing ring 2 and the groove body 1 are of an integrated structure, and the flexible sealing ring 2 can be bonded with the groove body 1 through a bonding agent.

During the test, be equipped with flexible sealing washer 2 between cell body 1 and the photovoltaic module 3 back of awaiting measuring, it has certain flexibility, can reduce the power that cell body 1 produced to the photovoltaic module 3 that awaits measuring on the one hand, avoid awaiting measuring photovoltaic module 3 in the testing process inside take place to be hidden and split, on the other hand, under the effect of fixed part 6, flexible sealing washer 2 is inseparabler with the backplate laminating of the photovoltaic module 3 that awaits measuring, leakproofness and laminating nature between reinforcing cell body 1 and the photovoltaic module 3 that awaits measuring, the problem of leaking in the testing process of avoiding appearing.

In addition to any of the above embodiments, in an embodiment of the present application, the wet leakage detection module further includes:

and the temperature sensor is arranged on the inner side of the tank body 1 and is used for measuring the temperature of the liquid in the tank body 1 so as to measure the wet leakage condition of the photovoltaic module 3 to be measured at different liquid temperatures.

The present application further provides a wet leakage detection system, including: a wet leakage test device 4 and the assembly for wet leakage detection according to any of the above embodiments.

The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.

The assemblies and systems for wet electrical leakage detection provided herein are described in detail above. The principle and the embodiment of the present application are explained by applying specific examples, and the above description of the embodiments is only used to help understand the scheme and the core idea of the present application. It should be noted that, for those skilled in the art, without departing from the principle of the present application, the present application can also make several improvements and modifications, and those improvements and modifications also fall into the protection scope of the claims of the present application.

Claims (10)

1. An assembly for wet leakage detection, comprising:

the photovoltaic module testing device comprises a groove body, a testing device and a testing device, wherein the groove body is used for accommodating a junction box and a connector of a photovoltaic module to be tested, and the groove body is provided with a testing hole for introducing a testing connector of a wet leakage testing device;

the fixing part is used for fixing the groove body on the back face of the photovoltaic module to be detected.

2. The assembly for wet leakage detection according to claim 1, further comprising:

and the flexible sealing ring is arranged at the opening of the groove body and is used for contacting with the back surface of the photovoltaic module to be tested.

3. The assembly for detecting wet leakage according to claim 1, wherein the fixing portion is an elastic insulating frame provided with a first through hole, the bottom of the tank body is provided with a second through hole, the elastic insulating frame is fixed at the bottom of the tank body through a connecting member, the first through hole and the second through hole, and two ends of the elastic insulating frame are used for being clamped at the inner side of the frame of the photovoltaic assembly to be detected.

4. The assembly for detecting wet leakage according to claim 1, wherein the fixing portion is an elastic insulating frame provided with a clamping groove, a protruding column is arranged at the bottom of the groove body, the elastic insulating frame is fixed at the bottom of the groove body through the clamping groove and the protruding column, and two ends of the elastic insulating frame are used for being clamped at the inner side of the frame of the photovoltaic assembly to be detected.

5. The assembly for detecting wet leakage according to claim 1, wherein the fixing portion is at least one of an elastic band, a binding band with a buckle, and an adhesive tape.

6. The assembly for detecting wet leakage of claim 2, wherein the flexible sealing ring and the tank are of an integral structure.

7. The assembly for detecting wet leakage according to claim 1, wherein a water discharge hole and a piston matched with the water discharge hole are formed in the side wall of the tank body.

8. The assembly for detecting wet leakage of claim 1, wherein the side wall of the tank body is provided with a water inlet.

9. The assembly for wet leakage detection according to any one of claims 1 to 8, further comprising:

and the temperature sensor is arranged on the inner side of the tank body and is used for measuring the temperature of the liquid in the tank body.

10. A wet electrical leakage detection system, comprising: a wet electrical leakage test apparatus and a component for wet electrical leakage detection as claimed in any one of claims 1 to 9.

Images