CN214675058U

CN214675058U - Combiner box

Info

Publication number: CN214675058U
Application number: CN202120014611.7U
Authority: CN
Inventors: 周玉森; 伍思俊
Original assignee: Guangdong Youdian New Energy Technology Co ltd; Shenzhen Kstar New Energy Co Ltd; Shenzhen Kstar Technology Co Ltd
Current assignee: Shenzhen Kstar New Energy Co Ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-11-09
Anticipated expiration: 2031-01-05

Abstract

The utility model provides a combiner box, which comprises a box body, wherein the bottom of the box body is provided with a negative fuse holder, a negative combiner copper bar, a positive fuse holder, a positive combiner copper bar, an output copper bar, a circuit breaker and a current module, the output copper bar is positioned at one side of the negative fuse holder, the negative combiner copper bar, the positive fuse holder and the positive combiner copper bar, and a monitoring host and a power lightning arrester are arranged above the current module; the negative pole converges the copper bar, the positive pole converges the copper bar and is connected with the circuit breaker, the circuit breaker is connected with the output copper bar, the positive terminal and the positive pole of circuit breaker converge the copper bar and are connected, the positive pole converges the copper bar and is connected with anodal fuse seat, the negative pole end and the negative pole of circuit breaker converge the copper bar and are connected, the negative pole converges the copper bar and is connected with negative fuse seat. Adopt the technical scheme of the utility model, improved space utilization, reduced the part kind, reduced complete machine weight and processing cost, also practiced thrift the cost of package material and transportation simultaneously.

Description

Combiner box

Technical Field

The utility model relates to a photovoltaic power generation technical field especially relates to a collection flow box.

Background

In the existing junction box for photovoltaic power generation, components or parts such as a lightning protector, a monitoring unit, a current module, a communication terminal, a circuit breaker, a positive fuse holder, a negative fuse holder, a junction copper bar, a grounding copper bar, a PG joint and the like need to be installed, and the types of the parts are various; in addition, a bottom tray is installed at the bottom of the confluence box, all sheet metal parts and devices inside the bottom tray are connected and fixed through the riveting pieces of the bottom tray, the whole box body occupies a large area, the general size is 905mm x 570mm, the weight exceeds 24kg, the transportation cost is high, and the operation of installation personnel is inconvenient.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model discloses a collection flow box has improved space utilization, has reduced the part kind, has reduced complete machine weight.

To this end, the technical scheme of the utility model is that:

a junction box comprises a box body, wherein a negative fuse holder, a negative junction copper bar, a positive fuse holder, a positive junction copper bar, an output copper bar, a circuit breaker and a current module are arranged at the bottom of the box body, the circuit breaker is positioned on one side of the negative fuse holder, the negative junction copper bar, the positive fuse holder and the positive junction copper bar, and a monitoring host and a power supply lightning arrester are arranged above the current module; the negative electrode bus copper bar and the positive electrode bus copper bar are connected with a circuit breaker, and the circuit breaker is connected with an output copper bar; the negative fuse holder, the negative bus copper bar, the positive fuse holder, the positive bus copper bar, the output copper bar and the current module are fixedly connected with the bottom of the box body; the positive terminal and the positive pole of circuit breaker converge the copper bar and be connected, the positive pole converges the copper bar and is connected with anodal fuse seat, the negative pole end and the negative pole of circuit breaker converge the copper bar and be connected, the negative pole converges the copper bar and is connected with negative fuse seat.

Adopt this technical scheme, will originally be located in the box with other spare parts together with bottom tray fixed connection's monitoring host computer and power lightning protection device setting in the top of current module, can reduce the length and the money of box, reduce area, negative pole fuse holder, negative pole converge copper bar, anodal fuse holder, anodal copper bar that converges, output copper bar, current module are direct and bottom half fixed connection, have cancelled the bottom tray, have alleviateed the weight of the case that converges.

As a further improvement, the monitoring host, the power lightning protection device and the bottom half fixed connection.

As a further improvement, the bottom of the monitoring host and the power lightning arrester is fixedly connected with the bottom of the box body through a steel column supporting piece. By adopting the technical scheme, the monitoring host and the power supply lightning protector can be firmly fixed, and the monitoring host and the power supply lightning protector cross over the current module.

As a further improvement, the negative fuse holder, the negative pole copper bar that converges, positive fuse holder, the positive pole copper bar that converges, output copper bar, current module are pressed and are riveted on the bottom half.

As a further improvement of the utility model, the lateral wall of the box body is provided with a PG waterproof joint.

As a further improvement of the utility model, the output copper bar is connected with the output terminal,

as a further improvement of the utility model, the bottom of the box body is provided with a communication terminal.

As a further improvement of the present invention, the current module, the positive fuse holder and the negative fuse holder are fixedly connected to the bottom of the case through the guide rail.

As a further improvement, the bottom of the anode bus bar copper bar is connected with the bottom of the box body through an insulating column.

As a further improvement of the utility model, the negative pole fuse seat and the positive pole fuse seat are 24-way fuse seats.

Compared with the prior art, the beneficial effects of the utility model are that:

adopt the technical scheme of the utility model, through rational arrangement and change assembly methods, improved space utilization, reduced the part kind, reduced complete machine weight, reduced the processing cost, also practiced thrift the cost of package material and transportation simultaneously.

Drawings

Fig. 1 is a schematic top view of a junction box according to the present invention.

Fig. 2 is a cross-sectional view taken along the direction Y-Y of fig. 1.

The reference numerals include:

1-box, 2-negative fuse holder, 3-negative bus copper bar, 4-positive fuse holder, 5-positive bus copper bar, 6-output copper bar, 7-current module, 8-monitoring host, 9-power lightning arrester, 10-output terminal, 11-communication terminal, 12-PG waterproof joint, 13-hexagonal long steel column support, 14-grounding copper bar and 15-circuit breaker.

Detailed Description

Preferred embodiments of the present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a collection flow box, it includes box 1, box 1 bottom is equipped with negative pole fuse holder 2, negative pole copper bar 3 that converges, anodal fuse holder 4, anodal copper bar 5 that converges, output copper bar 6, circuit breaker 15, current module 7, circuit breaker 15 is located negative pole fuse holder 2, negative pole copper bar 3 that converges, anodal fuse holder 4, the anodal one side that converges copper bar 5, the top of current module 7 is equipped with monitoring host 8 and power lightning protection device 9, monitoring host 8 and power lightning protection device 9 are connected with box 1 bottom through the 4PCS hexagonal long steel post support 13 of bottom respectively, span in current module 7 top.

The negative pole busbar copper bar 3, the positive pole busbar copper bar 5 are connected with circuit breaker 15, and circuit breaker 15 is connected with output copper bar 6, output copper bar 6 is connected with output terminal 10. The negative fuse holder 2, the negative bus copper bar 3, the positive fuse holder 4, the positive bus copper bar 5, the output copper bar 6 and the current module 7 are fixed on the bottom of the box body 1; the positive terminal of the circuit breaker 15 is connected with the positive bus bar 5, and the positive bus bar 5 is connected with the positive fuse holder 4. And the negative pole end of the circuit breaker 15 is connected with the negative pole bus copper bar 3, and the negative pole bus copper bar 3 is connected with the negative pole fuse holder 2. The bottom of the positive electrode bus copper bar 5 is fixed at the bottom of the box body 1 through an insulating column.

The side wall of the box body 1 is provided with a PG waterproof joint 12. The bottom of the box body 1 is provided with a communication terminal 11 and a grounding copper bar 14 which are directly fixed on the bottom of the box body 1. The current module 7, the positive fuse holder 4 and the negative fuse holder 2 are fixedly connected with the bottom of the box body 1 through guide rails.

Further, in this embodiment, the junction box is a 24-way junction box, and the negative fuse holder 2 and the positive fuse holder 4 are 24-way fuse holders.

By adopting the technical scheme of the embodiment, the monitoring host and the power supply lightning protector are changed to span above the current module and are connected with the bottom of the box body through the 4PCS hexagonal long steel column supporting piece at the bottom, the total height of the device after installation is 158.2mm and is lower than the total height in the box of 183mm, and the height of the box body is not increased. The length of the new box body and the door panel is shortened from 905mm to 750mm, the width is shortened from 655mm to 570mm, the weight is reduced from the original 24.74 kg to 17.47 kg, and the weight is reduced by 6.27 kg. The technical scheme of this embodiment has cancelled the bottom tray to change the pressure riveting piece of all need fixed sheet metal component and devices into the direct fixation and press and rivet on the bottom half, alleviateed the weight of collection flow box, the weight of original bottom tray is 5.51 kg. The collection flow box of this embodiment realizes having improved space utilization through rational arrangement and change assembly methods, reduces the part kind, reduces complete machine weight (total 11.78 kg), has reduced the processing cost, has also practiced thrift the cost of package material and transportation simultaneously.

The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the shape and structure of the present invention are within the protection scope of the present invention.

Claims

1. A collection flow box which is characterized in that: the intelligent lightning protection box comprises a box body, wherein a negative fuse holder, a negative bus copper bar, a positive fuse holder, a positive bus copper bar, an output copper bar, a circuit breaker and a current module are arranged at the bottom of the box body, the circuit breaker is positioned on one side of the negative fuse holder, the negative bus copper bar, the positive fuse holder and the positive bus copper bar, and a monitoring host and a power supply lightning arrester are arranged above the current module; the negative electrode bus copper bar and the positive electrode bus copper bar are connected with a circuit breaker, and the circuit breaker is connected with an output copper bar; the negative fuse holder, the negative bus copper bar, the positive fuse holder, the positive bus copper bar, the output copper bar and the current module are fixedly connected with the bottom of the box body;

the positive terminal and the positive pole of circuit breaker converge the copper bar and be connected, the positive pole converges the copper bar and is connected with anodal fuse seat, the negative pole end and the negative pole of circuit breaker converge the copper bar and be connected, the negative pole converges the copper bar and is connected with negative fuse seat.

2. The combiner box of claim 1, wherein: the monitoring host machine, the power supply lightning protection device and the bottom of the box body are fixedly connected.

3. The combiner box of claim 2, wherein: the monitoring host and the bottom of the power lightning protector are fixedly connected with the bottom of the box body through steel column supporting pieces.

4. The combiner box of claim 3, wherein: the negative fuse holder, the negative bus copper bar, the positive fuse holder, the positive bus copper bar, the output copper bar and the current module are pressed and riveted on the bottom of the box body.

5. The combiner box of claim 3, wherein: and the side wall of the box body is provided with a PG waterproof joint.

6. The combiner box of claim 3, wherein: the output copper bar is connected with the output terminal.

7. The combiner box of claim 3, wherein: and the bottom of the box body is provided with a communication terminal.

8. The combiner box according to any of claims 1 to 7, wherein: the current module, the positive fuse holder and the negative fuse holder are fixedly connected with the bottom of the box body through guide rails.

9. The combiner box of claim 8, wherein: the bottom of the positive bus copper bar is connected with the bottom of the box body through an insulating column.