CN216250713U

CN216250713U - Split type photovoltaic terminal box

Info

Publication number: CN216250713U
Application number: CN202122078343.8U
Authority: CN
Inventors: 丁而立; 刘逸飞
Original assignee: Jiangsu Huilang Electronic Technology Co ltd
Current assignee: Jiangsu Huilang Electronic Technology Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-04-08
Anticipated expiration: 2031-08-31

Abstract

The utility model relates to a split type photovoltaic junction box which comprises a box body, a modular diode and a cover plate, wherein the cover plate is detachably fixed at the top of the box body, the modular diode is fixed in the box body, the modular diode comprises an anode terminal, a cathode terminal and a diode chip which is connected with the anode terminal and the cathode terminal in the middle, a supporting part which protrudes upwards is arranged at the bottom in the box body, the anode terminal and the cathode terminal are fixedly connected above the supporting part, and two sides of the anode terminal and the cathode terminal are respectively provided with a hem which is bent downwards along the outer edge of the supporting part and extends to the bottom of the box body. The junction of positive terminal and negative terminal and diode chip all is equipped with the busbar through-hole, and the length direction setting of busbar through-hole perpendicular to box body is equipped with the corresponding busbar logical groove with the busbar through-hole bottom the box body. The split photovoltaic junction box disclosed by the utility model has the advantages of high heat dissipation speed and good stability.

Description

Split type photovoltaic terminal box

Technical Field

The utility model relates to a structure of a solar photovoltaic cell junction box, and belongs to the technical field of photovoltaics.

Background

The solar junction box is a connector between a solar cell array formed by the solar cell modules and the solar charging control device, and provides a combined connection scheme of the solar cell panel for users. The double-glass solar cell module consists of two glass layers on the front side and the back side and a solar cell sheet positioned in the middle of the glass layers. Glass's insulating nature is superior to the backplate, and dual glass assembly can satisfy higher system voltage, and the wearability advantage is obvious, is applicable to the photovoltaic power plant in more acid rain or the big area of salt fog. Due to the fact that the structure of the solar cell module is different from that of a back plate solar cell module, a split type junction box is generally adopted.

Chinese patent document CN211089587U (application number: 201922495824.1) discloses a modular split junction box, which comprises a box body, a modular diode and a cover plate, wherein the cover plate is detachably fixed on the top of the box body, the modular diode is fixed on the bottom inside the box body, the modular diode comprises an anode terminal, a cathode terminal and a diode chip which is centrally connected with the anode terminal and the cathode terminal, the box body is in a strip shape, the box body is composed of a bottom plate and a frame which surrounds the bottom plate, an outward protruding part is arranged on one side of the frame along the length direction of the box body, and the length and the position of the protruding part correspond to the length and the position of the modular diode. Due to the problem of the terminal structure, the heat dissipation performance of the patent needs to be improved.

Disclosure of Invention

The utility model aims to provide a split type photovoltaic junction box with fast heat dissipation and good stability.

In order to solve the technical problems, the utility model provides a technical scheme that: the utility model provides a split type photovoltaic terminal box, includes box body, modularization diode and apron, the apron is removable to be fixed the top of box body, the modularization diode is fixed in the box body, the modularization diode includes positive terminal, negative terminal and the diode chip of connecting positive terminal and negative terminal between two parties, bottom in the box body is equipped with the bellied supporting part that makes progress, the top of positive terminal and negative terminal fixed connection supporting part, the both sides of positive terminal and negative terminal all are equipped with along the supporting part outer edge downward bending and extend to the hem of box body bottom.

Bus bar through holes are formed in the joints of the anode terminal and the cathode terminal and the diode chip, and the bus bar through holes are perpendicular to the length direction of the box body; and the bottom of the box body is provided with a bus bar through groove corresponding to the bus bar through hole.

Bus bar tin soldering portions are arranged on the positive terminal and the negative terminal and adjacent to the bus bar through holes, and the bus bar tin soldering portions are rectangular and lower than horizontal surfaces of the positive terminal and the negative terminal.

Be equipped with many spacing posts on the supporting part, all be equipped with on positive terminal and the negative terminal with spacing post assorted spacing hole, positive terminal and negative terminal pass through spacing post hot melt to be fixed on the supporting part.

The supporting parts are two U-shaped lugs which are symmetrically arranged and respectively correspond to the positive terminal and the negative terminal, and the height of each supporting part is larger than or equal to the length of the folded edge which is bent downwards.

The LED lamp is characterized in that a limiting table is further arranged between the supporting parts, the diode chip is sunk into the limiting table, inclined planes are arranged on the two sides of the limiting table along the length direction of the box body, and triangular grooves extending to the inclined planes are arranged on the two sides of the limiting table along the length direction of the box body.

The inner wall top of box body is equipped with the buckle, the bottom of apron be equipped with buckle joint complex draw-in groove.

The bottom of the box body is provided with a dismounting opening corresponding to the position of the buckle.

The cable terminal is characterized by further comprising a wire clamp, a cable and a connector, wherein a pressure interface is arranged at the joint of the box body and the cable, reinforcing plates are arranged around the pressure interface, one end of the cable, which is positioned in the box body, is fixedly pressed with the positive terminal or the negative terminal, and the other end of the cable, which is positioned outside the box body, is connected with the connector; the cable of box body stretches out the department and sets up the ply-yarn drill groove with ply-yarn drill assorted, thereby the ply-yarn drill passes through ultrasonic welding fixed connection in the ply-yarn drill groove spacing the cable.

A handle is arranged on one side outside the box body.

The utility model has the positive effects that: according to the split type photovoltaic junction box, the two sides of the positive terminal and the negative terminal are respectively provided with the folded edges which are bent downwards along the outer edge of the supporting part and extend to the bottom of the box body, the folded edges fully utilize the inner space of the box body, the heat dissipation surface is increased, the stability is improved, meanwhile, the split type photovoltaic junction box is convenient to mount with the supporting part, and the mounting efficiency is improved. According to the split photovoltaic junction box, the disassembly opening corresponding to the buckle position is formed in the bottom of the box body, so that the box body can be quickly separated from the cover plate by extending the disassembly tool into the disassembly opening, and the operation is simple.

Drawings

The split photovoltaic junction box of the utility model is further explained with reference to the accompanying drawings.

Fig. 1 is a schematic perspective view of a split photovoltaic junction box of embodiment 1;

FIG. 2 is an exploded perspective view of the split photovoltaic junction box of FIG. 1;

FIG. 3 is a schematic perspective view of the cassette of FIG. 2;

FIG. 4 is a schematic perspective view of the bottom of the outer side of the cassette of FIG. 2;

FIG. 5 is a schematic perspective view of the cover plate of FIG. 2;

fig. 6 is a schematic perspective view of the split photovoltaic junction box of embodiment 2.

The above figures are numbered as follows:

the box body 1, the crimping mouth 103, the reinforcing plate 104, the ply-yarn drill groove 105, dismantle mouthful 106, supporting part 11, spacing post 111, the bus bar logical groove 12, buckle 13, spacing platform 18, inclined plane 181, triangular groove 182, modularization diode 2, positive terminal 21, negative terminal 22, diode chip 23, hem 24, bus bar through-hole 25, bus bar soldering tin portion 26, spacing hole 27, apron 3, draw-in groove 31, ply-yarn drill 4, cable 5, connector 6, handle 7.

Detailed Description

Example 1

See fig. 1 to 5, a split type photovoltaic terminal box of this embodiment, including box body 1, modularization diode 2 and apron 3, the top at box body 1 is fixed to apron 3 removable, modularization diode 2 is fixed in box body 1, modularization diode 2 includes positive terminal 21, negative terminal 22 and the diode chip 23 of connecting positive terminal 21 and negative terminal 22 between two parties, bottom in the box body 1 is equipped with the bellied supporting part 11 that makes progress, positive terminal 21 and the top of negative terminal 22 fixed connection supporting part 11, positive terminal 21 and negative terminal 22's both sides all are equipped with along the supporting part 11 outer hem 24 of bending downwards and extending to box body 1 bottom.

The joints of the positive terminal 21 and the negative terminal 22 and the diode chip 23 are provided with bus bar through holes 25, and the bus bar through holes 25 are perpendicular to the length direction of the box body 1.

The bottom of the box body 1 is provided with a bus bar through groove 12 corresponding to the bus bar through hole 25.

Bus bar soldering portions 26 are provided on the positive and

negative terminals

21 and 22 adjacent to the bus bar through-holes 25, and the bus bar soldering portions 26 are rectangular and lower than the horizontal surfaces of the positive and

negative terminals

21 and 22.

Two limiting columns 111 are respectively arranged on the supporting part 11, limiting holes 27 matched with the limiting columns 111 are respectively arranged on the positive terminal 21 and the negative terminal 22, and the positive terminal 21 and the negative terminal 22 are fixed on the supporting part 11 through the limiting columns 111 in a hot melting mode.

The support parts 11 are two U-shaped bumps which are symmetrically arranged and respectively correspond to the positive terminal 21 and the negative terminal 22, and the height of the support parts 11 is larger than the length of the downward bending of the folded edge 24.

Still be equipped with spacing platform 18 between the supporting part 11, diode chip 23 is absorbed in spacing platform 18, and spacing platform 18 all is equipped with inclined plane 181 along the length direction's of box body 1 both sides, and spacing platform 18 all is equipped with the triangular groove 182 that extends to inclined plane 181 along the length direction's of box body 1 both sides.

The top of the inner wall of the box body 1 is provided with a buckle 13, and the bottom of the cover plate 3 is provided with a clamping groove 31 which is clamped and matched with the buckle 13.

In order to facilitate the detachment of the cover plate 2, the bottom of the box body 1 is provided with a detachment opening 106 corresponding to the position of the buckle 13.

The cable connector also comprises a wire clamp 4, a cable 5 and a connector 6, wherein a pressure interface 103 is arranged at the joint of the box body 1 and the cable 5, reinforcing plates 104 are arranged around the pressure interface 103, one end of the cable 5, which is positioned in the box body 1, is fixedly connected with the positive terminal 21 or the negative terminal 22 in a pressure welding manner, and the other end of the cable 5, which is positioned outside the box body 1, is connected with the connector 6; the cable 5 of the box body 1 extends out of the box body and is provided with a wire clamp groove 105 matched with the wire clamp 4, and the wire clamp 4 is fixedly connected with the wire clamp groove 105 through ultrasonic welding so as to limit the cable 5.

When the split photovoltaic junction box is installed, the cover plate 3 can be easily disassembled by using a disassembling tool to penetrate through the disassembling port 106 and the compression joint port 103, so that the cover plate is separated from the box body 1; the modular diode 2 is directly fixed on the supporting part 11 through the limit column 111 by hot melting, then the cable 5 is pressed on the positive terminal 21 or the negative terminal 22, and then the wire clamp 4 and the connector 6 are installed. And a bus bar is installed during later-stage field construction, and the cover plate 3 is covered.

Example 2

Referring to fig. 6, the remaining parts of the split photovoltaic junction box of this embodiment are the same as those of embodiment 1, except that: there are no line cards 4, cables 5 and connectors 6. A handle 7 is arranged at one side outside the box body 1.

It should be understood that the above-described embodiments are merely examples provided for clearly illustrating the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious variations or modifications which fall within the spirit of the utility model are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a split type photovoltaic terminal box, includes box body (1), modularization diode (2) and apron (3), apron (3) are removable to be fixed the top of box body (1), modularization diode (2) are fixed in box body (1), modularization diode (2) include anodal terminal (21), negative terminal (22) and diode chip (23) of connecting anodal terminal (21) and negative terminal (22) between two parties, its characterized in that: the bottom in the box body (1) is equipped with bellied supporting part (11) that makes progress, positive terminal (21) and negative terminal (22) fixed connection supporting part's (11) top, the both sides of positive terminal (21) and negative terminal (22) all are equipped with along supporting part (11) outer edge bend downwards and extend to hem (24) of box body (1) bottom.

2. The split photovoltaic junction box of claim 1, wherein: bus bar through holes (25) are formed in the joints of the anode terminal (21) and the cathode terminal (22) and the diode chip (23), and the bus bar through holes (25) are perpendicular to the length direction of the box body (1); the bottom of the box body (1) is provided with a bus bar through groove (12) corresponding to the bus bar through hole (25).

3. The split photovoltaic junction box of claim 2, wherein: and bus bar tin soldering parts (26) are arranged on the positions, adjacent to the bus bar through holes (25), of the positive terminal (21) and the negative terminal (22), and the bus bar tin soldering parts (26) are rectangular and lower than the horizontal surfaces of the positive terminal (21) and the negative terminal (22).

4. The split photovoltaic junction box of claim 3, wherein: be equipped with many spacing posts (111) on supporting part (11), all be equipped with on positive terminal (21) and negative terminal (22) with spacing post (111) assorted spacing hole (27), positive terminal (21) and negative terminal (22) are fixed on supporting part (11) through spacing post (111) hot melt.

5. The split photovoltaic junction box of claim 4, wherein: the supporting parts (11) are two U-shaped convex blocks which are symmetrically arranged and respectively correspond to the positive terminal (21) and the negative terminal (22), and the height of the supporting parts (11) is larger than or equal to the length of the downward bending of the folded edge (24).

6. The split photovoltaic junction box of claim 5, wherein: the LED light source is characterized in that a limiting table (18) is further arranged between the supporting portions (11), the diode chip (23) is sunk into the limiting table (18), inclined planes (181) are arranged on two sides of the limiting table (18) along the length direction of the box body (1), and triangular grooves (182) extending to the inclined planes (181) are arranged on two sides of the limiting table (18) along the length direction of the box body (1).

7. The split photovoltaic junction box of claim 6, wherein: the inner wall top of box body (1) is equipped with buckle (13), the bottom of apron (3) be equipped with buckle (13) joint complex draw-in groove (31).

8. The split photovoltaic junction box of claim 7, wherein: the bottom of the box body (1) is provided with a disassembly opening (106) corresponding to the position of the buckle (13).

9. The split photovoltaic junction box of any one of claims 1 to 8, wherein: the cable connector is characterized by further comprising a line card (4), a cable (5) and a connector (6), wherein a pressure interface (103) is arranged at the joint of the box body (1) and the cable (5), reinforcing plates (104) are arranged on the periphery of the pressure interface (103), one end of the cable (5) located in the box body (1) is fixedly connected with the positive terminal (21) or the negative terminal (22) in a compression mode, and the other end of the cable (5) located outside the box body (1) is connected with the connector (6); the cable (5) of box body (1) stretches out the department and sets up with line card (4) assorted line draw-in groove (105), thereby line card (4) pass through ultrasonic welding fixed connection in line draw-in groove (105) spacing cable (5).

10. The split photovoltaic junction box of any one of claims 1 to 8, wherein: a grip (7) is arranged on one side outside the box body (1).