CN217956143U

CN217956143U - Photovoltaic module junction box

Info

Publication number: CN217956143U
Application number: CN202222114050.5U
Authority: CN
Inventors: 饶中山; 钟防; 郭军; 浦秋
Original assignee: China Power Investment Guizhou Jinyuan Group Yunnan Huize New Energy Co ltd
Current assignee: China Power Investment Guizhou Jinyuan Group Yunnan Huize New Energy Co ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-12-02
Anticipated expiration: 2032-08-11

Abstract

The utility model discloses a photovoltaic module terminal box, comprises a box bod and a box cover, the positive symmetry of box body is provided with the junction box with the inside intercommunication of box body, the box body is inside evenly to be provided with a plurality of installation pieces, and installs the equal symmetry of piece upper surface and seted up the screw, and screw internally mounted has the screw, installation piece top all is provided with the current conducting plate of T type structure, and is adjacent all be provided with the diode between the current conducting plate, the both ends of diode all are provided with L type stitch, the current conducting plate upper surface is provided with coupling mechanism, can arrange the wiring stitch of diode in between circular slot and the lower circular slot to compress tightly the wiring stitch through the T template and fix on the current conducting plate, thereby promote the stability between diode and the wire part, follow-up again welds the wiring stitch along bar weld groove, solved the diode stitch and because of welding area little, the not enough problem that leads to the insecure easy emergence of diode welding is become flexible even drops of soldering tin volume.

Description

Photovoltaic module junction box

Technical Field

The utility model belongs to the technical field of solar PV modules, specifically speaking relates to a photovoltaic module terminal box.

Background

The junction box of the solar cell module is one of important modules of the solar cell module, and mainly functions to connect electric power generated by the solar cell with an external circuit. Inside diode wiring stitch of photovoltaic module terminal box needs with electrically conductive parts welded fastening, sets up the pinhole on electrically conductive parts mostly between traditional diode wiring stitch and the electrically conductive parts, with the inside back welding of diode stitch insertion pinhole together, but there is the welding part area little like this, the soldering tin volume is not enough, leads to diode wiring stitch welding insecure, takes place to become flexible even the phenomenon that drops easily.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model adopts the technical scheme that:

a junction box of a photovoltaic assembly comprises a box body and a box cover, wherein junction tubes communicated with the interior of the box body are symmetrically arranged on the front side of the box body, a plurality of mounting blocks are uniformly arranged in the box body, screw holes are symmetrically formed in the upper surfaces of the mounting blocks, screws are arranged in the screw holes, current-conducting plates of T-shaped structures are arranged at the tops of the mounting blocks, diodes are arranged between every two adjacent current-conducting plates, L-shaped pins are arranged at two ends of each diode, and connecting mechanisms are arranged on the upper surfaces of the current-conducting plates;

the connecting mechanism comprises a wire pressing piece arranged above the current conducting plate and close to one end of the wiring pipe, a T-shaped plate arranged at the other end above the current conducting plate, upper circular grooves symmetrically formed in two sides of the lower surface of the T-shaped plate, lower circular grooves symmetrically formed in two sides of the upper surface of the current conducting plate, first through holes formed in the plate body of the current conducting plate and used for inserting screws, and second through holes formed in the end part of the T-shaped plate and used for inserting screws; the one end that lower circular slot is close to the current conducting plate central line is seted up and is used for the pinhole that L type stitch tip passed, the bar welding groove that communicates with last circular slot is seted up to T template upper surface.

As a preferred technical scheme of the utility model, the draw-in groove with the current conducting plate adaptation is seted up at installation piece top, T template and draw-in groove looks adaptation, the degree of depth of draw-in groove is greater than the thickness of current conducting plate.

As an optimized technical scheme of the utility model, the third through-hole that is used for inserting the screw is offered at line ball piece center.

As an optimal technical scheme of the utility model, the thread tooth has been seted up to the wire barrel outside, the thread bush is installed to the wire barrel tip.

As a preferred technical scheme of the utility model, the corner of box body both sides all is provided with the cutting ferrule, the bilateral symmetry of lid be provided with the L type cardboard of cutting ferrule adaptation.

As a preferred technical scheme of the utility model, the box body lower surface be provided with the flange of box body internal portion adaptation, lid lower surface bonds have with the sealing strip of box body top framework adaptation.

Has the beneficial effects that:

through the installation piece that sets up, the screw, the current conducting plate, the diode, L type stitch, the line ball piece, the T template, go up the circular slot, circular slot down, the pinhole, first through-hole, second through-hole and bar soldering bath isotructure, can arrange the wiring stitch of diode in between circular slot and the circular slot down, and compress tightly the wiring stitch through the T template and fix on the current conducting plate, thereby promote the stability between diode and the wire part, follow-up welding to the wiring stitch along the bar soldering bath again, it is little because of welding area to have solved the diode stitch, the soldering tin volume is not enough and leads to the insecure easy problem of taking place not hard up or even droing of diode welding.

The following describes embodiments of the present invention in further detail with reference to the attached drawings.

Drawings

In the drawings:

fig. 1 is a schematic diagram of the explosion structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the case of the present invention;

fig. 3 is a schematic structural view of the box cover of the present invention;

FIG. 4 is a structural schematic of the connection mechanism of the present invention;

FIG. 5 is a schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 6 is a schematic view of the structure at B in fig. 4 according to the present invention.

In the figure: 1. a case body; 2. a box cover; 3. a wire connecting pipe; 4. mounting blocks; 5. a screw hole; 6. a screw; 7. a conductive plate; 8. a diode; 9. an L-shaped stitch; 10. pressing line sheets; 11. a T-shaped plate; 12. an upper circular groove; 13. a lower circular groove; 1301. a pinhole; 14. a first through hole; 15. a second through hole; 16. strip-shaped welding grooves; 17. a card slot; 18. a third through hole; 19. a threaded sleeve; 20. and (7) sealing the tape.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention.

As shown in fig. 1 to 6, a photovoltaic module junction box comprises a box body 1 and a box cover 2, wherein junction pipes 3 communicated with the interior of the box body 1 are symmetrically arranged on the front surface of the box body 1, a plurality of mounting blocks 4 are uniformly arranged in the box body 1, screw holes 5 are symmetrically arranged on the upper surfaces of the mounting blocks 4, screws 6 are arranged in the screw holes 5, current-conducting plates 7 with T-shaped structures are arranged at the tops of the mounting blocks 4, diodes 8 are arranged between the adjacent current-conducting plates 7, L-shaped pins 9 are arranged at two ends of each diode 8, and connecting mechanisms are arranged on the upper surfaces of the current-conducting plates 7;

the connecting mechanism comprises a wire pressing piece 10 arranged above the current conducting plate 7 and close to one end of the wire connecting pipe 3, a T-shaped plate 11 arranged at the other end above the current conducting plate 7, upper circular grooves 12 symmetrically formed in two sides of the lower surface of the T-shaped plate 11, lower circular grooves 13 symmetrically formed in two sides of the upper surface of the current conducting plate 7, first through holes 14 formed in the plate body of the current conducting plate 7 and used for inserting the screws 6, and second through holes 15 formed in the end part of the T-shaped plate 11 and used for inserting the screws 6; one end of the lower circular groove 13 close to the center line of the conductive plate 7 is provided with a pinhole 1301 used for the end part of the L-shaped pin 9 to pass through, and the upper surface of the T-shaped plate 11 is provided with a strip-shaped welding groove 16 communicated with the upper circular groove 12;

in other embodiments, the top of the mounting block 4 is provided with a clamping groove 17 matched with the conductive plate 7, the T-shaped plate 11 is matched with the clamping groove 17, and the depth of the clamping groove 17 is greater than the thickness of the conductive plate 7; the degree of depth of the above-mentioned draw-in groove 17 that sets up is greater than the thickness of current conducting plate 7 to the current conducting plate 7 and the adaptation of T template 11 that the width and the T type structure of draw-in groove 17 set up can be when the installation, and inside current conducting plate 7 and T template 11 placed the draw-in groove 17 in, under the cooperation of screw 6 and screw 5, can place current conducting plate 7 and the condition that the T template 11 took place to rotate.

Specifically, a third through hole 18 for inserting the screw 6 is formed in the center of the line pressing piece 10; when the junction box is used for wiring, the screw 6 firstly passes through the third through hole 18 and then is inserted into the first through hole 14 and the screw hole 5 which are close to the junction tube 3, the lead is wound on the screw 6 between the wire pressing sheet 10 and the conductive plate 7, and the screw 6 is screwed so as to electrically connect the lead and the junction box together.

Specifically, the external part of the wire connecting tube 3 is provided with a thread, and the end part of the wire connecting tube 3 is provided with a thread sleeve 19; when carrying out the wiring, pass threaded sleeve 19 with the wire, pass junction box 3 with the wire from the outer end of junction box 3 again, connect the wire on current conducting plate 7 after that, notice during the wiring and knot the wire in threaded sleeve 19 inside to keep the wire to be located junction box 3 and the inside line body of box body 1 to relax, can avoid the wire to receive external force to draw to drop from screw 6 like this, avoid influencing the normal work of terminal box.

Specifically, the clamping sleeves are arranged at the corners of two sides of the box body 1, and the L-shaped clamping plates matched with the clamping sleeves are symmetrically arranged at two sides of the box cover 2; through the setting of cutting ferrule and L type cardboard, make the mode that adopts the joint between box body 1 and the lid 2 link together, make things convenient for opening and closing of terminal box.

Specifically, the lower surface of the box body 1 is provided with a convex plate matched with the interior of the box body 1, and the lower surface of the box cover 2 is bonded with a sealing strip 20 matched with a frame body at the top of the box body 1; through the setting of above-mentioned flange, make the flange and the inside joint that carries on of box body 1, prevent that lid 2 from taking place the condition of sidesway on box body 1, improve the stability of assembly, through sealing strip 20's setting, can extrude sealing strip 20 when lid 2 is installed on box body 1, seal up in the junction of box body 1 and lid 2, improved the waterproof performance of terminal box.

The working principle is as follows: when in installation, the conductive plate 7 is firstly respectively arranged at the top of the installation block 4, the L-shaped pin 9 is arranged in the lower circular groove 13 and the pinhole 1301, then the T-shaped plate 11 is arranged on the upper surface of the conductive plate 7, the upper circular groove 12 is kept to be coated on the L-shaped pin 9, then, a screw 6 is inserted into the second through hole 15 and the first through hole 14 on the side close to the pinhole 1301, the adjusting screw 6 is matched with the screw hole 5 to fix the conductive plate 7 and the T-shaped plate 11 on the mounting block 4, the L-shaped pins 9 are then soldered along the strip-shaped soldering grooves 16, whereby the diodes 8 are soldered to the two conducting plates 7, when this junction box is wired, the screw 6 is passed through the third through hole 18, and the first through hole 14 on the side close to the wire barrel 3, the lead wire is passed through the wire barrel 3, one end of the lead is wound on a screw 6 positioned between the conductive plate 7 and the wire pressing sheet 10, the adjusting screw 6 is matched with the screw hole 5 to fix the lead, the wiring operation of the junction box is completed, then the box cover 2 is arranged on the box body 1 to complete the installation work of the whole device, the wiring pin of the diode 8 can be arranged between the upper circular groove 12 and the lower circular groove 13 through the arrangement of the installation block 4, the screw hole 5, the screw 6, the conductive plate 7, the diode 8, the L-shaped pin 9, the line pressing sheet 10, the T-shaped plate 11, the upper circular groove 12, the lower circular groove 13, the pin hole 1301, the first through hole 14, the second through hole 15, the strip-shaped welding groove 16 and the like, the wiring pin is tightly pressed and fixed on the conductive plate 7 through the T-shaped plate 11, thereby promote the stability between diode 8 and the wire part, follow-up again along bar soldering bath 16 to the stitch of taking over a telephone switchboard, solved the problem that the diode 8 stitch is difficult to take place to become flexible or even drop because of the bonding area is little, the soldering tin volume is not enough and leads to the diode 8 to weld insecurely.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a photovoltaic module terminal box, includes box body (1) and lid (2), box body (1) openly symmetry be provided with the inside junction box (3) of intercommunication of box body (1), its characterized in that: a plurality of mounting blocks (4) are uniformly arranged in the box body (1), screw holes (5) are symmetrically formed in the upper surfaces of the mounting blocks (4), screws (6) are arranged in the screw holes (5), current-conducting plates (7) of a T-shaped structure are arranged at the tops of the mounting blocks (4), diodes (8) are arranged between every two adjacent current-conducting plates (7), L-shaped pins (9) are arranged at two ends of each diode (8), and connecting mechanisms are arranged on the upper surfaces of the current-conducting plates (7);

the connecting mechanism comprises a wire pressing piece (10) arranged above the current conducting plate (7) and close to one end of the wiring pipe (3), a T-shaped plate (11) arranged at the other end above the current conducting plate (7), upper circular grooves (12) symmetrically arranged on two sides of the lower surface of the T-shaped plate (11), lower circular grooves (13) symmetrically arranged on two sides of the upper surface of the current conducting plate (7), first through holes (14) arranged on the plate body of the current conducting plate (7) and used for inserting the screws (6), and second through holes (15) arranged at the end part of the T-shaped plate (11) and used for inserting the screws (6); one end of the lower circular groove (13) close to the center line of the conductive plate (7) is provided with a pinhole (1301) for the end part of the L-shaped pin (9) to penetrate, and the upper surface of the T-shaped plate (11) is provided with a strip-shaped welding groove (16) communicated with the upper circular groove (12).

2. The photovoltaic module junction box of claim 1, wherein: the mounting block (4) top is seted up with draw-in groove (17) of current conducting plate (7) adaptation, T template (11) and draw-in groove (17) looks adaptation, the degree of depth of draw-in groove (17) is greater than the thickness of current conducting plate (7).

3. The photovoltaic module junction box of claim 1, wherein: the center of the line pressing piece (10) is provided with a third through hole (18) for inserting a screw (6).

4. The photovoltaic module junction box of claim 1, wherein: thread teeth are formed in the outer portion of the wire connecting tube (3), and a thread sleeve (19) is installed at the end portion of the wire connecting tube (3).

5. The photovoltaic module junction box of claim 1, wherein: cutting sleeves are arranged at the corners of the two sides of the box body (1), and L-shaped clamping plates matched with the cutting sleeves are symmetrically arranged at the two sides of the box cover (2).

6. The photovoltaic module junction box of claim 1, wherein: the lower surface of the box body (1) is provided with a convex plate matched with the inside of the box body (1), and the lower surface of the box cover (2) is bonded with a sealing strip (20) matched with the top frame body of the box body (1).