CN209844912U

CN209844912U - Photovoltaic module test fixture

Info

Publication number: CN209844912U
Application number: CN201920812118.2U
Authority: CN
Inventors: 阚加瑞
Original assignee: Yancheng Dafeng Ats Sunshine Power Technology Co Ltd
Current assignee: Yancheng Dafeng Ats Sunshine Power Technology Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2019-12-24
Anticipated expiration: 2029-05-31

Abstract

The utility model provides a photovoltaic module test fixture, include: the insulating body comprises a substrate, a blocking wall arranged on the substrate and a butting piece arranged opposite to the blocking wall; a clamping groove is formed between the blocking wall and the abutting piece to clamp and fix the frame of the photovoltaic assembly; the pair of conductive terminals are arranged on the side face, deviating from the clamping groove, of the blocking wall, one end of each conductive terminal is electrically connected with the photovoltaic module, and the other end of each conductive terminal is electrically connected with the testing equipment; an arc extinguishing curved surface positioned between the pair of conductive terminals is arranged on the side surface of the blocking wall departing from the clamping groove; the section of the arc extinguishing curved surface in the connecting line direction of the pair of conductive terminals is a curve. Compared with the prior art, the utility model discloses photovoltaic module test fixture is through setting up the arc extinguishing curved surface to effectively prevent that photovoltaic module test fixture from being punctured.

Description

Photovoltaic module test fixture

Technical Field

The utility model belongs to the photovoltaic power generation field especially relates to a photovoltaic module test fixture.

Background

The photovoltaic module is prepared by welding and laminating a plurality of photovoltaic battery pieces. In order to protect the module and facilitate installation, a mounting frame is generally provided for the photovoltaic module. And then, carrying out power test, withstand voltage test, EL test and the like on the photovoltaic modules one by one on the production line. When the test is carried out, the lead of the photovoltaic module is electrically connected with the interface of the test equipment. Therefore, in order to improve the testing efficiency, reduce the damage to the photovoltaic module connector caused by repeated plugging and unplugging, and save labor, a testing tool is usually used for connecting the photovoltaic module and the testing equipment. Referring to fig. 1, the conventional photovoltaic device frame generally has A, B, C, D sides, wherein a gap is formed between the C side and the back panel b of the photovoltaic device, and A, B, C, D sides respectively form the top side (f is the glass panel on the front side of the photovoltaic device), the outer side wall surface, the bottom side and the outer side wall surface of the photovoltaic device frame.

When the test tool is used for testing the photovoltaic module, the B surface and the C surface of the frame of the photovoltaic module are fixed by utilizing a clamping groove, a fixing pin and the like on the test tool, and then the connecting wire on the test tool is connected with the connecting wire of the photovoltaic module. When the photovoltaic module reaches the testing station, the metal probe of the testing equipment is in electrical contact with the conductive terminal on the testing tool, so that the testing work is facilitated. After the test is finished, the metal probe of the test equipment retracts, the photovoltaic module is conveyed to the next test station or is directly taken down by the manual work, and the photovoltaic module is packaged.

However, existing photovoltaic module testing tools are typically made of nylon. When the photovoltaic module is subjected to a pressure-resistant test, a pair of conductive terminals on the test tool are mutually communicated because water vapor in the curing room can remain on the surface of the photovoltaic module and nylon has strong water absorption; when 4800V (sometimes 6000V) is applied, a leakage current is generated between a pair of conductive terminals on the test tool, so that the alarm gives an alarm. In addition, the nylon material is easy to be broken down by high voltage in the long-time recycling process of the test tool.

In view of the above problems, there is a need to provide a new photovoltaic module testing tool to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a photovoltaic module test fixture, this photovoltaic module test fixture is through setting up the arc extinguishing curved surface to can prevent effectively that photovoltaic module test fixture from being punctured.

In order to achieve the above object, the utility model provides a photovoltaic module test fixture, include: the insulating body comprises a substrate, a blocking wall arranged on the substrate and a butting piece arranged opposite to the blocking wall; a clamping groove is formed between the blocking wall and the abutting piece to clamp and fix the frame of the photovoltaic assembly; the pair of conductive terminals are arranged on the side face, deviating from the clamping groove, of the blocking wall, one end of each conductive terminal is electrically connected with the photovoltaic module, and the other end of each conductive terminal is electrically connected with the testing equipment; an arc extinguishing curved surface positioned between the pair of conductive terminals is arranged on the side surface of the blocking wall departing from the clamping groove; the section of the arc extinguishing curved surface in the connecting line direction of the pair of conductive terminals is a curve.

As a further improvement of the present invention, the curve is square wave shaped.

As a further improvement of the present invention, the retaining wall is provided with a wire groove penetrating through the retaining wall to accommodate a wire.

As a further improvement, the retaining wall is still including being located hold the inside wall between groove and the wire guide and be located the wire guide deviates from the lateral wall of holding groove one side is held to the card, the wall thickness of lateral wall is located between 10mm ~ 12mm, the arc extinguishing curved surface is located the lateral wall deviates from on the side of wire guide.

As a further improvement of the utility model, be provided with the via hole on the lateral wall, so as to be located wire in the wire casing passes the via hole with conductive terminal electric connection.

As a further improvement of the present invention, one end of the outer sidewall is bent and extended to form an extension wall to assist in supporting the frame of the photovoltaic module; the extension wall is perpendicular to the outer side wall.

As a further improvement of the utility model, support and hold the piece and include the installation department and install be used for supporting holding the arm of holding of supporting of holding the photovoltaic module frame on the installation department.

As a further improvement of the present invention, the retaining member further includes an elastic element located between the mounting portion and the retaining arm so as to adjust the distance between the retaining arm and the blocking wall.

As a further improvement of the present invention, the elastic member is a spring.

As a further improvement of the present invention, the insulating body is made of teflon.

The utility model has the advantages that: the utility model discloses photovoltaic module test fixture is through setting up the arc extinguishing curved surface to can prevent effectively that photovoltaic module test fixture from being punctured.

Drawings

Fig. 1 is a schematic view of an assembly relationship between a conventional photovoltaic module and a photovoltaic module frame.

Fig. 2 is the utility model discloses photovoltaic module test fixture's structural schematic.

Fig. 3 is a top view of the photovoltaic module testing tool shown in fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 2, the present invention discloses a photovoltaic module testing tool 100, which includes an insulating body 10 and a pair of conductive terminals 20 installed on the insulating body 10. One end of the conductive terminal 20 is electrically connected to the photovoltaic module, and the other end is electrically connected to the testing device. In the present embodiment, the conductive terminal 20 is made of a copper block.

Referring to fig. 2 and 3, the insulating body 10 includes a substrate 11, a blocking wall 12 disposed on the substrate 11, an extending wall 13 formed by bending and extending one end of the blocking wall 12, an end wall 14 formed by bending and extending one end of the blocking wall 12 away from the extending wall 13, and a supporting member 15 disposed opposite to the blocking wall 12, wherein a clamping groove 16 is formed between the blocking wall 12 and the supporting member 15 for clamping and fixing a frame of the photovoltaic module.

Referring to fig. 2, the blocking wall 12 includes an inner sidewall 121, an outer sidewall 122 opposite to the inner sidewall 121, and a wire guide 123 between the inner sidewall 121 and the outer sidewall 122. The inner side wall 121 and the holding member 15 together form the holding groove 16. The outer sidewall 122 is located on a side of the wire groove 123 away from the retaining groove 16, and a via hole 1221 penetrating through the outer sidewall 122 is disposed thereon, so that the wire located in the wire groove 123 passes through the via hole 1221 and is electrically connected to the conductive terminal 20. A pair of the conductive terminals 20 are mounted on a side of the outer side wall 122 facing away from the wire guide 123. The side surface of the outer sidewall 122 facing away from the wire guide groove 123 is further provided with an arc extinguishing curved surface 1222 (shown by a dotted line in fig. 3) located between the pair of conductive terminals 20, and the section line of the arc extinguishing curved surface 1222 in the connecting line direction of the pair of conductive terminals 20 is curved, that is: the arc extinguishing curved surface 1222 has a non-linear cross-sectional line in a direction of a line connecting the pair of conductive terminals 20. In the present embodiment, the curve is square wave shaped, but in other embodiments, the curve may also be wavy, zigzag, etc. The utility model discloses it is right the concrete shape of curve does not do the restriction. With such an arrangement, the arc extinguishing curved surface between the pair of conductive terminals 20 can be effectively enlarged, thereby effectively preventing high voltage breakdown. The wall thickness of the outer side wall 122 is between 10mm and 12 mm. With such an arrangement, the performance of preventing high voltage breakdown can be further improved. The thicker the thickness of the outer sidewall 122, the better the penetration resistance. However, as the thickness of the outer sidewall 122 increases, the mass of the photovoltaic module testing tool 100 also increases, so that the photovoltaic module testing tool 100 is not easy to turn around on a production line. In order to take the breakdown-preventing performance and the quality of the photovoltaic module testing tool 100 into consideration, in this embodiment, the thickness of the outer sidewall 122 is 10 mm.

Referring to fig. 2 and 3, the extending wall 13 is perpendicular to the outer sidewall 122 to assist in supporting the frame of the photovoltaic module. The end wall 14 is provided with a wire passing groove 141 penetrating through the end wall 14, and the wire passing groove 141 is communicated with the wire guiding groove 123. The supporting member 15 includes a mounting portion 151, a supporting arm (not shown) mounted on the mounting portion 151 for supporting the frame of the photovoltaic module, and an elastic element (not shown) located between the mounting portion 151 and the supporting arm. The elastic element is used for adjusting the distance between the abutting arm and the blocking wall 12, so that the universality of the photovoltaic module testing tool 100 is enhanced. In this embodiment, the elastic element is a spring.

The existing photovoltaic module testing tool is usually made of nylon. When photovoltaic module carries out withstand voltage test, because the vapor in the curing chamber can remain on photovoltaic module surface and nylon has stronger hydroscopicity to make easily switch on each other between a pair of conductive terminal on the test fixture. In this embodiment, the insulating body 10 is made of teflon. Because the polytetrafluoroethylene has strong water resistance, the conductive terminals 20 can be effectively prevented from being conducted with each other.

When using the utility model discloses during photovoltaic module test fixture 100, at first hold photovoltaic module's frame card and fix hold in the card holds the groove 16, then passes photovoltaic module's wire pass behind wire casing 141, wire casing 123, via hole 1221 with conductive terminal 20 electric connection. Then, the photovoltaic module testing tool 100 is placed on a testing station. At this time, the metal probe of the testing device is electrically contacted with the conductive terminal 20, so as to perform the testing operation.

Compared with the prior art, the utility model discloses photovoltaic module test fixture 100 is through setting up arc extinguishing curved surface 1222 to can effectively prevent photovoltaic module test fixture 100 is punctured.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a photovoltaic module test fixture, includes:

the insulating body comprises a substrate, a blocking wall arranged on the substrate and a butting piece arranged opposite to the blocking wall; a clamping groove is formed between the blocking wall and the abutting piece to clamp and fix the frame of the photovoltaic assembly; and

the pair of conductive terminals are arranged on the side face, deviating from the clamping groove, of the blocking wall, one end of each conductive terminal is electrically connected with the photovoltaic module, and the other end of each conductive terminal is electrically connected with the testing equipment; the method is characterized in that:

an arc extinguishing curved surface positioned between the pair of conductive terminals is arranged on the side surface of the blocking wall departing from the clamping groove; the section of the arc extinguishing curved surface in the connecting line direction of the pair of conductive terminals is a curve.

2. The photovoltaic module test fixture of claim 1, wherein: the curve is square wave shaped.

3. The photovoltaic module test fixture of claim 1, wherein: the blocking wall is provided with a wire groove penetrating through the blocking wall so as to accommodate a wire.

4. The photovoltaic module test fixture of claim 3, wherein: the baffle wall further comprises an inner side wall located between the clamping groove and the wire groove and an outer side wall located on one side of the wire groove and deviating from the clamping groove, the wall thickness of the outer side wall is located between 10mm and 12mm, and the arc extinguishing curved surface is located on the side face of the outer side wall deviating from the wire groove.

5. The photovoltaic module test tool of claim 4, wherein: the outer side wall is provided with a through hole, so that a lead positioned in the lead groove penetrates through the through hole to be electrically connected with the conductive terminal.

6. The photovoltaic module test tool of claim 4, wherein: one end of the outer side wall is bent and extended to form an extension wall to assist in abutting against the frame of the photovoltaic assembly; the extension wall is perpendicular to the outer side wall.

7. The photovoltaic module test fixture of claim 1, wherein: the supporting piece comprises an installation part and a supporting arm which is installed on the installation part and used for supporting the photovoltaic assembly frame.

8. The photovoltaic module test fixture of claim 7, wherein: the abutting piece further comprises an elastic element positioned between the mounting portion and the abutting arm so as to adjust the distance between the abutting arm and the blocking wall.

9. The photovoltaic module test fixture of claim 8, wherein: the elastic element is a spring.

10. The photovoltaic module test fixture of claim 1, wherein: the insulating body is made of polytetrafluoroethylene.