CN211557225U - Photovoltaic exchanges collection flow box - Google Patents
Photovoltaic exchanges collection flow box Download PDFInfo
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- CN211557225U CN211557225U CN202020301342.8U CN202020301342U CN211557225U CN 211557225 U CN211557225 U CN 211557225U CN 202020301342 U CN202020301342 U CN 202020301342U CN 211557225 U CN211557225 U CN 211557225U
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- fuse
- lightning protection
- protection device
- circuit breaker
- photovoltaic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The utility model discloses a photovoltaic exchanges collection flow box, include: the box, circuit breaker, lightning protection device, anodal fuse, negative pole fuse, anodal fuse all are connected with the circuit breaker with the negative pole fuse, and anodal fuse all is connected with the lightning protection device with the negative pole fuse, all is equipped with lightning protection device protection circuit breaker, lightning protection device ground connection between anodal fuse and the lightning protection device and between negative pole fuse and the lightning protection device. The circuit breaker output flows through behind a plurality of positive pole fuses and the negative pole fuse to the electric current, because all positive pole fuses, all negative pole fuses all are connected with the circuit breaker, when the electric current condition that can damage the photovoltaic conflux case appears, can derive through the lightning protection device of ground connection, prevents to damage the photovoltaic and exchanges the conflux case, promotes the lightning protection performance of photovoltaic interchange conflux case. After the lightning protection device is damaged, the lightning protection device protection circuit breaker can break off the connection between the positive fuse and the lightning protection device, and between the negative fuse and the lightning protection device, and other elements inside the box body are protected.
Description
Technical Field
The utility model relates to a photovoltaic power generation equipment technical field, more specifically say, relate to a photovoltaic exchanges collection flow box.
Background
For a large-scale photovoltaic grid-connected power generation system, in order to reduce connecting wires between a photovoltaic grid-connected inverter and a grid-connected cabinet, facilitate maintenance and improve reliability, a confluence device is generally required to be added between the photovoltaic grid-connected inverter and the grid-connected cabinet. The existing bus bar device is usually provided with a lightning protector, but the failure of the lightning protector can cause damage to other internal components.
In summary, the problem to be solved by the technical personnel in the field is how to avoid the damage of other elements when the lightning protection device fails.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a photovoltaic exchanges collection flow box that lightning protection performance is better, and can prevent to damage other components when the lightning protection device became invalid.
In order to achieve the above object, the present invention provides the following technical solutions:
a photovoltaic ac combiner box, comprising: box, circuit breaker, lightning protection device, positive pole fuse, negative pole fuse, positive pole fuse with the negative pole fuse all with the circuit breaker is connected, positive pole fuse with the negative pole fuse all with the lightning protection device is connected, positive pole fuse with between the lightning protection device and the negative pole fuse with all be equipped with lightning protection device protection circuit breaker between the lightning protection device, lightning protection device ground connection.
Preferably, the intelligent monitoring system comprises an intelligent monitoring module for monitoring current, voltage, electric energy and switching value data.
Preferably, all the positive fuses are connected in parallel, all the negative fuses are connected in parallel, and all the positive fuses and the negative fuses are connected to the busbar, the busbar is connected to the lightning protection device protection circuit breaker.
Preferably, the box body comprises a rear box body and a face cover hinged on the rear box body, and the face cover is connected with the non-hinged side of the rear box body through a lock catch.
Preferably, the incoming line port of anodal fuse the incoming line port of negative pole fuse the ground connection port of lightning protection device the output port of circuit breaker all set up in the bottom of box, just the incoming line port of anodal fuse the incoming line port of negative pole fuse the ground connection port of lightning protection device the output port outside of circuit breaker all is equipped with watertight fittings.
The utility model provides a pair of photovoltaic exchanges collection flow box, include: the box, circuit breaker, lightning protection device, anodal fuse, negative pole fuse, anodal fuse all are connected with the circuit breaker with the negative pole fuse, and anodal fuse all is connected with the lightning protection device with the negative pole fuse, all is equipped with lightning protection device protection circuit breaker, lightning protection device ground connection between anodal fuse and the lightning protection device and between negative pole fuse and the lightning protection device.
The positive pole fuse and the negative pole fuse in the external lines access box, the circuit breaker output is flowed through behind a plurality of positive pole fuses and negative pole fuse to the electric current, because all positive pole fuses, all negative pole fuses all are connected with the circuit breaker, when the electric current condition that can damage the photovoltaic conflux case appears, can derive through the lightning protection device of ground connection, prevent to damage the photovoltaic and exchange the conflux case, promote the lightning protection performance of photovoltaic interchange conflux case. After the lightning protection device is damaged, the lightning protection device protection circuit breaker can break off the connection between the positive fuse and the lightning protection device, and between the negative fuse and the lightning protection device, and other elements inside the box body are protected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is the utility model provides a photovoltaic exchanges collection flow box internal line schematic diagram.
In fig. 1:
1-positive fuse, 2-negative fuse, 3-lightning protection device protection circuit breaker, 4-circuit breaker and 5-lightning protection device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses a core is that it is better to provide a lightning protection performance, and can prevent to damage the photovoltaic of other components when the lightning protection device became invalid exchanges collection flow box.
Referring to fig. 1, fig. 1 is a schematic diagram of an internal circuit of a photovoltaic ac combiner box according to the present invention.
A photovoltaic ac combiner box, comprising: the box, circuit breaker 4, lightning protection device 5, positive pole fuse 1, negative pole fuse 2, positive pole fuse 1 all is connected with circuit breaker 4 with negative pole fuse 2, and positive pole fuse 1 all is connected with lightning protection device 5 with negative pole fuse 2, all is equipped with lightning protection device protection circuit breaker 3 between positive pole fuse 1 and the lightning protection device 5 and between negative pole fuse 2 and the lightning protection device 5, lightning protection device 5 ground connection.
It should be noted that, set up a plurality of anodal fuse 1 that connect in parallel each other and a plurality of negative pole fuse 2 that connect in parallel each other in the photovoltaic exchanges collection flow box, the quantity of anodal fuse 1 and negative pole fuse 2 can set up according to the practical application condition. The photovoltaic alternating current combiner box can be matched with a photovoltaic inverter product to form a complete photovoltaic power generation system solution, and by using the photovoltaic alternating current combiner box, a user can combine the output of a certain number of grid-connected inverters through the lightning protection device 5 and the circuit breaker 4 according to the rated input current and voltage of the alternating current grid-connected cabinet, so that the access of a rear-stage grid-connected cabinet is facilitated.
The photovoltaic alternating current combiner box has the protection grade of IP65, meets outdoor requirements, meets strict high and low temperature tests, and meets the use in an extreme environment, but the combiner box is electrical equipment, so the combiner box is not placed in a humid place as far as possible.
The external dimensions of the box body are 750mm multiplied by 200mm multiplied by 750mm (width multiplied by depth multiplied by height), and the vertical wall-hung installation is recommended. The box adopts closed design, has characteristics such as waterproof, dustproof, box heat dissipation, is fit for indoor outer installation and uses, can be fixed by 4 screw fixed orifices on box both sides.
External lines inserts anodal fuse 1 and negative pole fuse 2 in the box, and the electric current flows through circuit breaker 4 output behind a plurality of anodal fuses 1 and negative pole fuse 2, because all anodal fuses 1, all negative pole fuses 2 all are connected with circuit breaker 4, when the electric current condition that can damage the photovoltaic conflux case appears, can derive through grounded lightning protection device 5, prevents to damage the photovoltaic and exchanges the conflux case, promotes the lightning protection performance of photovoltaic interchange conflux case. After lightning protection device 5 damages, lightning protection device protection circuit breaker 3 can break off being connected between positive fuse 1 and lightning protection device 5, negative pole fuse 2 and lightning protection device 5, other inside components of protection box.
On the basis of the above embodiment, as a further preferred, an intelligent monitoring module for monitoring current, voltage, electric energy and switching value data is included. The intelligent monitoring module comprises a detection unit and a display unit, the detection unit can detect and monitor current, voltage, electric energy and switching value data, the detection unit transmits the data to the display unit for observation of a user, and problems can be found in time.
In addition to the above embodiment, it is further preferable that all the positive fuses 1 are connected in parallel, all the negative fuses 2 are connected in parallel, and all the positive fuses 1 and the negative fuses 2 are connected to a bus bar, and the bus bar is connected to the lightning protection breaker 3. The arrangement of circuit can be simplified, the use of lightning protection device 5 and lightning protection device protection circuit breaker 3 can be reduced to the setting busbar, all positive pole fuses 1 and negative pole fuses 2 are all connected in same busbar, can all positive pole fuses 1 and negative pole fuses 2 all connect in same lightning protection device protection circuit breaker 3.
On the basis of the above embodiment, as a further preferable mode, the box body includes a rear box body and a surface cover hinged to the rear box body, and the surface cover is connected to the non-hinged side of the rear box body through a lock catch.
It should be noted that the front cover may be generally configured to be opened left and right, for example, the right side of the front cover may be hinged to the rear box, the latch may be configured on the left side of the front cover and the rear box, and the front cover may be opened by the latch on the left side of the box. Or the left side of the face cover can be hinged to the rear box body, the lock catch is arranged on the right side of the face cover and the rear box body, and the face cover can be opened by the lock catch on the right side of the box body. The provision of a hinged face cover facilitates opening and closing of the face cover and facilitates mounting of the internal components.
On the basis of the above embodiment, as a further preferable option, the wire inlet port of the positive fuse 1, the wire inlet port of the negative fuse 2, the ground port of the lightning arrester 5, and the output port of the circuit breaker 4 are all disposed at the bottom of the box, and the wire inlet port of the positive fuse 1, the wire inlet port of the negative fuse 2, the ground port of the lightning arrester 5, and the outer side of the output port of the circuit breaker 4 are all provided with waterproof devices. It should be noted that, the waterproof device is a waterproof joint, and when a user connects a wire, the waterproof joint needs to be unscrewed, then the wire is connected, a screw for fixing the wire is screwed, and finally the waterproof joint on the outer side is screwed. This embodiment all is equipped with watertight fittings in the inlet wire port of anodal fuse 1, the inlet wire port of negative pole fuse 2, the ground connection port of lightning protection device 5, the output port outside of circuit breaker 4 and can promotes the waterproof performance of box, increases the security performance.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a photovoltaic exchanges collection flow box and has introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (5)
1. A photovoltaic AC combiner box, comprising: box, circuit breaker (4), lightning protection device (5), positive pole fuse (1), negative pole fuse (2), positive pole fuse (1) with negative pole fuse (2) all with circuit breaker (4) are connected, positive pole fuse (1) with negative pole fuse (2) all with lightning protection device (5) are connected, positive pole fuse (1) with reach between lightning protection device (5) negative pole fuse (2) with all be equipped with lightning protection device protection circuit breaker (3) between lightning protection device (5), lightning protection device (5) ground connection.
2. The photovoltaic ac combiner box of claim 1, comprising an intelligent monitoring module for monitoring current, voltage, power, and switching data.
3. The photovoltaic AC combiner box according to claim 1, characterized in that all the positive fuses (1) are connected in parallel, all the negative fuses (2) are connected in parallel, and all the positive fuses (1) and the negative fuses (2) are connected to a busbar connected to the lightning protection circuit breaker (3).
4. The photovoltaic ac combiner box of claim 1, wherein the box body includes a rear box body and a face cover hinged to the rear box body, the face cover being connected to a non-hinged side of the rear box body by a latch.
5. The photovoltaic AC combiner box of claim 4, wherein the wire inlet port of the positive fuse (1), the wire inlet port of the negative fuse (2), the ground port of the lightning arrester (5), and the output port of the circuit breaker (4) are all disposed at the bottom of the box body, and the wire inlet port of the positive fuse (1), the wire inlet port of the negative fuse (2), the ground port of the lightning arrester (5), and the outer side of the output port of the circuit breaker (4) are all provided with waterproof devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020301342.8U CN211557225U (en) | 2020-03-11 | 2020-03-11 | Photovoltaic exchanges collection flow box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020301342.8U CN211557225U (en) | 2020-03-11 | 2020-03-11 | Photovoltaic exchanges collection flow box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211557225U true CN211557225U (en) | 2020-09-22 |
Family
ID=72494229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020301342.8U Active CN211557225U (en) | 2020-03-11 | 2020-03-11 | Photovoltaic exchanges collection flow box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211557225U (en) |
-
2020
- 2020-03-11 CN CN202020301342.8U patent/CN211557225U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220712 Address after: 325000 first floor, building 1, No. 237, Weisan Road, Yueqing Economic Development Zone, Wenzhou, Zhejiang Province Patentee after: Zhejiang Anfu New Energy Technology Co.,Ltd. Address before: No. 136-138, Xinguang Avenue, Xinguang Industrial Zone, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province 325604 Patentee before: WENZHOU KANGYU ELECTRICAL Co.,Ltd. |
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| TR01 | Transfer of patent right |