CN213279580U

CN213279580U - Short-circuit-proof junction box

Info

Publication number: CN213279580U
Application number: CN202022154905.8U
Authority: CN
Inventors: 史曙明; 马锡方; 黄群雅
Original assignee: Zhejiang Zhonghuan Saite Photovoltaic Science & Technology Co ltd
Current assignee: Zhejiang Zhonghuan Saite Photovoltaic Science & Technology Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-05-25
Anticipated expiration: 2030-09-27

Abstract

The utility model provides a prevent terminal box of short circuit, includes box body and the lid of lid on this box body is established to the lid, the box body in be equipped with the metal support, the both sides of metal support are equipped with respectively and supply busbar male first slot and second slot, the box body in be equipped with a baffle, the baffle be located first slot and second slot between. The bus bars of the first slot and the second slot can be effectively separated through the design of the partition plate, and the phenomenon of short circuit caused by contact between the two bus bars is guaranteed. The design through the base not only can guarantee that metal support's is stable fixed, can also make this metal support be in the state of unsettling relatively, is favorable to metal support's heat dissipation to the base is protruding structure, and this just leads to the inside volume of gluing of box body to reduce, thereby reduce cost.

Description

Short-circuit-proof junction box

Technical Field

The utility model belongs to the technical field of the photovoltaic terminal box and specifically relates to a prevent terminal box of short circuit.

Background

The junction boxes mentioned herein are all photovoltaic junction boxes, and a photovoltaic junction box is a connecting device between a solar cell array formed by solar cell modules and a solar charging control device, and is mainly used for connecting and protecting the solar cell modules, connecting electric power generated by the solar cells with an external circuit, and conducting current generated by the photovoltaic modules.

The conventional junction box basically comprises a box body, a metal bracket, a diode and a bus bar, wherein the metal bracket, the diode and the bus bar are arranged in the box body, the bus bar is generally divided into a bus bar at a current inlet end and a bus bar at a current outlet end, and because no shielding object exists between the two bus bars, when the junction box is interfered by an external environment, the two bus bars may be contacted to cause short circuit, so that the junction box cannot be used.

Disclosure of Invention

In order to overcome the above-mentioned not enough of prior art, the utility model provides a prevent terminal box of short circuit.

The technical proposal of the utility model for solving the technical problem is that: the utility model provides a prevent terminal box of short circuit, includes box body and the lid of lid on this box body is established to the lid, the box body in be equipped with the metal support, the both sides of metal support are equipped with respectively and are used for busbar male first slot and second slot, the box body in be equipped with a baffle, the baffle be located first slot and second slot between.

Preferably, the two partition plates are respectively distributed on the left side and the right side opposite to the first slot and the second slot.

Preferably, the box body is also internally provided with a base protruding upwards, and the metal support is arranged on the base.

Preferably, the base is provided with a positioning column, the metal support is provided with a positioning hole, the positioning column extends into the positioning hole, and the metal support is fixed on the base through a screw.

Preferably, one side of the metal bracket is bent to form a U-shaped notch.

Preferably, the base is provided with an escape notch for preventing interference caused by insertion of the bus bar.

Preferably, the bypass notch is matched with the bus bar.

Preferably, a first wire pressing plate and a second wire pressing plate are further arranged in the box body, and the first wire pressing plate and the second wire pressing plate are respectively distributed on two sides of the metal support.

Preferably, the junction box is subjected to sealing treatment by using pouring sealant.

The beneficial effects of the utility model reside in that: 1. the bus bars of the first slot and the second slot can be effectively separated through the design of the partition plate, and the phenomenon of short circuit caused by contact between the two bus bars is guaranteed. 2. The design through the base not only can guarantee that metal support's is stable fixed, can also make this metal support be in the state of unsettling relatively, is favorable to metal support's heat dissipation to the base is protruding structure, and this just leads to the inside volume of gluing of box body to reduce, thereby reduce cost.

Drawings

Fig. 1 is an internal structure view of the box body of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a structural view of the metal bracket of the present invention.

Fig. 4 is an enlarged view of a of fig. 2 according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, the short-circuit prevention junction box comprises a box body 1 and a box cover 2 covering the box body 1, wherein a metal support 3 is arranged in the box body 1, a first slot 4 and a second slot 5 for inserting a bus bar are respectively arranged on two sides of the metal support 3, a partition plate 6 is arranged in the box body 1, and the partition plate 6 is located between the first slot 4 and the second slot 5. Therefore, the bus bars in the first slot 4 and the second slot 5 can be effectively separated through the design of the partition plates 6, and the phenomenon of short circuit caused by contact among the bus bars is avoided.

And preferably, the two partition plates 6 are respectively distributed on the left side and the right side opposite to the first slot 4 and the second slot 5. Therefore, the bus bars in the first slot 4 and the second slot 5 can be prevented from contacting with each other in all directions through the two clapboards 6, and the short circuit phenomenon is avoided.

In this embodiment, a base 7 protruding upward is further disposed in the box body 1, and the metal bracket 3 is mounted on the base 7. The design of crossing base 7 not only can guarantee metal support 3 stable fixed, can also make this metal support 3 be in the state of unsettling relatively, is favorable to metal support 3's heat dissipation to base 7 is protruding structure, and this just leads to the inside volume of gluing of box body 1 to reduce cost.

Wherein the concrete mounting structure of base 7 and metal support 3 is: the base 7 is provided with a positioning column 8, the metal support 3 is provided with a positioning hole 9, the positioning column 8 extends into the positioning hole 9, and the metal support 3 is fixed on the base 7 through a screw 10.

In this embodiment, one side of the metal bracket 3 is bent to form a U-shaped notch 11. Therefore, the size of the metal support 3 is increased through the design of the U-shaped notch 11, so that the heat dissipation area is increased, and the heat dissipation effect of the metal support 3 is improved.

In the present embodiment, in order to prevent the upper end surface of the base 8 from interfering with the bus bar, the base 7 is provided with a relief notch 12 for preventing interference caused by insertion of the bus bar.

More preferably, the escape slot 12 is adapted to the bus bar. Therefore, effective positioning of the bus bar can be ensured through the avoiding notch 12, and the bus bar is ensured to be more conveniently inserted into the metal support 3.

In this embodiment, the box body 1 is further provided with a first wire pressing plate 13 and a second wire pressing plate 14, and the first wire pressing plate 13 and the second wire pressing plate 14 are respectively distributed on two sides of the metal bracket 3. The design through first line ball board 13 and second line ball board 14 guarantees to stretch into or derive the wire in the box body 1 and arrange the collection effect, prevents that the wire is chaotic and lead to meeting the phenomenon of short circuit.

In this embodiment, the junction box is subjected to a sealing process by using a special potting adhesive. The double-component silica gel is mainly used, has stronger sealing property after being subjected to sealing treatment by the pouring sealant, is strong in impact resistance and shearing force, and is suitable for long-term severe environments.

The utility model has the advantages that: the junction box can prevent contact between the bus bars through the partition plates, prevents short circuit, has the base, enables the metal support to have better hungry heat dissipation performance, reduces the amount of internal sealing glue, and reduces cost.

The above embodiments are only one of the preferable embodiments of the patent, and any changes made without departing from the scope of the present invention are within the scope of the patent.

Claims

1. The utility model provides a prevent terminal box of short circuit, includes box body and the lid of lid on this box body is established, the box body in be equipped with the metal support, the both sides of metal support are equipped with respectively and supply busbar male first slot and second slot, its characterized in that: a partition board is arranged in the box body and located between the first slot and the second slot.

2. The short-circuit prevention junction box of claim 1, wherein: the two partition plates are respectively distributed on the left side and the right side opposite to the first slot and the second slot.

3. The short-circuit prevention junction box of claim 1, wherein: the box body is also internally provided with a base protruding upwards, and the metal support is arranged on the base.

4. The short-circuit prevention junction box of claim 3, wherein: the base is provided with a positioning column, the metal support is provided with a positioning hole, the positioning column extends into the positioning hole, and the metal support is fixed on the base through a screw.

5. The short-circuit prevention junction box of claim 4, wherein: one side of the metal bracket is bent to form a U-shaped notch.

6. The short-circuit prevention junction box of claim 3, wherein: the base is provided with an avoiding notch for preventing the bus bar from being inserted to generate interference.

7. The short-circuit prevention junction box of claim 6, wherein: the avoiding notch is matched with the bus bar.

8. The short-circuit prevention junction box of claim 1, wherein: the box body in still be equipped with first line ball board and second line ball board, just first line ball board and second line ball board distribute respectively in this metal support's both sides.

9. The short-circuit prevention junction box of claim 1, wherein: the junction box is subjected to glue sealing treatment by adopting pouring glue.