CN211860048U

CN211860048U - Five-string photovoltaic assembly

Info

Publication number: CN211860048U
Application number: CN202020281557.8U
Authority: CN
Inventors: 孙海亮
Original assignee: Risen Energy Co Ltd
Current assignee: Risen Energy Co Ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-11-03
Anticipated expiration: 2030-03-09

Abstract

The utility model discloses a five cluster photovoltaic subassemblies, including the lamination piece, the lamination piece back from left to right set gradually first terminal box, second terminal box and third terminal box, the lamination piece openly be equipped with two sets of battery strings respectively and between the transverse gap of battery string, two sets of battery strings relative up-down set up, the anodal output of battery string all be located the transverse gap, battery string negative pole output be located the upper and lower both ends of lamination piece respectively, the battery string include a plurality of battery piece, the utility model provides a can realize five cluster photovoltaic subassemblies that the output collects.

Description

Five-string photovoltaic assembly

Technical Field

The utility model relates to a solar cell technical field especially relates to a five-string photovoltaic module.

Background

Most of the five common strings of photovoltaic modules in the market are 6 strings of battery strings, and the circuits are formed by connecting the five strings of photovoltaic modules in series or in series and parallel, so that the area of a battery piece is increased in a mode which is the quickest along with the continuous promotion of the market on the demand of a high-power module, and according to the prior art, the width of the five strings of photovoltaic modules of the 6 strings of battery strings can reach more than 1.3m along with the increase of the area of the battery piece. For the existing five-string photovoltaic assembly production line, the five-string photovoltaic assembly with the width can not realize automatic production at present, and raw materials such as glass, packaging adhesive films, back plates and the like required for producing the five-string photovoltaic assembly also have certain production difficulty. In addition, the height of the container used by the component outlet also has certain requirements on the width of the component, and the component with the width exceeding 1.2m cannot be suitable for the existing container. According to the prior art, if five battery strings are connected with each other by reducing the number of one string, the collection of the output ends cannot be realized by the existing circuit connection mode.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the defects of the prior art are overcome, and the five-string photovoltaic assembly capable of realizing output end convergence is provided.

The utility model adopts the technical proposal that: a five-string photovoltaic assembly comprises a laminating piece, wherein a first junction box, a second junction box and a third junction box are sequentially arranged on the back surface of the laminating piece from left to right, two groups of battery strings and transverse gaps between the battery strings are respectively arranged on the front surface of the laminating piece, the two groups of battery strings are oppositely arranged from top to bottom, the positive electrode output end of each battery string is positioned in the transverse gap, the negative electrode output end of each battery string is respectively positioned at the upper end and the lower end of the laminating piece, each battery string comprises a plurality of battery pieces, and further comprises a first bus bar, a second bus bar, a third bus bar and a fourth bus bar, the first bus bar and the second bus bar are positioned on the transverse gaps, one end of the first bus bar is communicated with the positive electrode output end of each battery string, the other end of the first bus bar is communicated with the positive electrode leading-out end of the first junction box, one end of the third bus bar is communicated with the negative electrode output end of each battery string, one end of the fourth bus bar is communicated with a negative electrode output end of the battery string positioned at the lower end of the laminating piece, the other end of the third bus bar is connected with the other end of the fourth bus bar at a transverse gap, one end of the second bus bar is communicated with the other end of the fourth bus bar, the other end of the second bus bar is communicated with a negative electrode leading-out end of the third junction box, and the second junction box is used for current connection.

After the structure more than adopting, compared with the prior art, the utility model has the following advantage: photovoltaic module negative pole output is respectively in the higher authority and the lower side of battery cluster, couples together and draws to horizontal clearance department through third busbar and fourth busbar with two negative pole outputs, also is exactly between two sets of battery clusters to install the third terminal box here, can realize that the output collects, does not account for the space.

Preferably, the junction box is arranged at the position of the lamination corresponding to the transverse gap, so that the first bus bar and the second bus bar are conveniently connected to the junction box.

Preferably, the third bus bar is arranged on the back of the battery string, between the battery sheets or on the side of the laminated piece, and does not occupy space.

Preferably, the fourth bus bar is arranged on the back of the battery string, between the battery sheets or on the side of the laminated piece, and does not occupy space.

Preferably, the battery pieces are connected in series when the number of the battery pieces is odd.

Preferably, the battery pieces are connected in parallel when the number of the battery pieces is even.

Preferably, the third bus bar and the fourth bus bar are in contact with each other, and a contact portion of the third bus bar and the fourth bus bar is wrapped by an insulating layer to prevent interference between the third bus bar and the fourth bus bar.

Drawings

Fig. 1 is a perspective view of a five-string photovoltaic module according to the present invention;

FIG. 2 is an enlarged schematic view of A of FIG. 1;

fig. 3 is a schematic diagram of the second bus bar, the third bus bar and the fourth bus bar of the five-string photovoltaic module of the present invention.

The battery comprises a base, a lamination piece, a battery string, a transverse gap, a first junction box, a first bus bar, a second bus bar, a third bus bar, a fourth bus bar, a second junction box, a third junction box and a battery, wherein the lamination piece comprises 1, 2, the battery string, 3, the transverse gap, 4, the first junction box, 5, the first bus bar, 6, the second.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in the figure, the utility model provides a five-string photovoltaic assembly, which comprises a laminated part 1, wherein the back surface of the laminated part 1 is sequentially provided with a first junction box 4, a second junction box 9 and a third junction box 10 from left to right, the front surface of the laminated part 1 is respectively provided with two groups of battery strings 2 and transverse gaps 3 between the battery strings 2, the two groups of battery strings 2 are oppositely arranged from top to bottom, the positive electrode output end of the battery string 2 is positioned in the transverse gap 3, the negative electrode output end of the battery string 2 is respectively positioned at the upper end and the lower end of the laminated part 1, the battery string 2 comprises a plurality of battery sheets, the five-string photovoltaic assembly also comprises a first bus bar 5, a second bus bar 6, a third bus bar 7 and a fourth bus bar 8, the first bus bar 5 and the second bus bar 6 are positioned on the transverse gaps 3, one end of the first bus bar 5 is communicated with the positive electrode output end of the, the other end of the first bus bar 5 is communicated with the positive leading-out end of the first junction box 4, one end of the third bus bar 7 is communicated with the negative pole output end of the battery string 2 positioned at the upper end of the laminated part 1, one end of the fourth bus bar 8 is communicated with the negative pole output end of the battery string 2 positioned at the lower end of the laminated part 1, the other end of the third bus bar 7 and the other end of the fourth bus bar 8 are connected together at the transverse gap 3, one end of the second bus bar 6 is communicated with the other end of the fourth bus bar 8, the other end of the second bus bar 6 is communicated with the negative leading-out end of the third junction box 10, the second junction box 9 is used for current connection, the utility model has the advantages that the negative pole output ends of the photovoltaic module are respectively arranged at the upper side and the lower side of the battery string 2, the two negative pole output ends are connected through the third bus bar 7 and the fourth, namely, the third junction box 10 is arranged between the two groups of battery strings 2, so that the collection of output ends can be realized, and the space is not occupied.

The first junction box 4 is arranged on the position of the laminated part 1 corresponding to the transverse gap 3, so that the first bus bar 5 and the second bus bar 6 are connected to the first junction box 4 conveniently.

The third bus bar 7 is arranged on the back of the battery string 2, between the battery pieces or on the side of the laminated part 1, and does not occupy space.

The fourth bus bar 8 is arranged on the back of the battery string 2, between the battery pieces or on the side of the laminated part 1, and does not occupy space.

The battery pieces are connected in series when the number of the battery pieces is odd, so that the cathode output ends of the battery strings 2 are respectively positioned at the upper end and the lower end of the laminating piece 1.

The battery pieces are connected in parallel when the number of the battery pieces is even, and the cathode output ends of the battery strings 2 are respectively positioned at the upper end and the lower end of the laminating piece 1.

The third bus bar 7 and the fourth bus bar 8 are contacted, and the contact part of the third bus bar 7 and the fourth bus bar 8 is wrapped with an insulating layer to prevent interference between the third bus bar 7 and the fourth bus bar 8.

Particularly, the utility model discloses a principle is that photovoltaic module negative pole output is respectively in the higher authority of battery cluster 2 and following, couples together two negative pole outputs and draws 3 departments in the transverse gap through third busbar 7 and fourth busbar 8, also is exactly between two sets of battery clusters 2 to install third terminal box 10 here, can realize that the output collects, does not account for the space.

The photovoltaic module mainly includes: eight parts, namely tempered coated glass, a packaging adhesive film, a battery piece, a welding strip, a bus bar, a junction box, a back plate and an aluminum frame; wherein the uppermost surface is coated toughened glass; the battery pieces are connected with the bus bars through welding strips; the packaging adhesive film is used for protecting the internal battery piece and bonding the toughened glass and the back plate; the bonded parts are assembled together with the aluminum frame through silica gel; the junction box is used for outputting the electric power generated by the solar cell.

The installation process comprises the following steps: firstly, series welding is carried out on a plurality of battery pieces; secondly, connecting the series-welded battery plates in series or in parallel by using bus bars to form two groups of battery strings 2 which are oppositely arranged on the laminating part 1 from top to bottom; third, the output ends of the upper and lower strings of the battery strings 5 are connected together using the third bus bar 7 and the fourth bus bar 8 and introduced onto the lateral gap 3; welding the fourth bus bar 6, the second bus bar 6 and the fourth bus bar 8 by electric soldering iron, and insulating strips are needed to insulate the third bus bar 7 and the fourth bus bar 8; laying an encapsulation adhesive film, enabling the bus bars of the first bus bar 5 and the second bus bar 6 to penetrate out of the opening of the back plate, and placing the semi-finished product into a laminating machine for laminating; sixthly, after lamination is finished, connecting the first bus bar 5 and the second bus bar 6 with the junction box 4 respectively; and seventhly, bonding the frame and the assembly by using silica gel around the assembly.

While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a five cluster photovoltaic module, includes lamination piece (1), lamination piece (1) back from left to right set gradually first terminal box (4), second terminal box (9) and third terminal box (10), lamination piece (1) front be equipped with two sets of battery strings (2) respectively and between battery string (2) lateral gap (3), two sets of battery strings (2) relative setting from top to bottom, battery string (2) anodal output all be located lateral gap (3), battery string (2) negative pole output be located the upper and lower both ends of lamination piece (1) respectively, battery string (2) include a plurality of battery piece, its characterized in that: the laminated plate structure further comprises a first bus bar (5), a second bus bar (6), a third bus bar (7) and a fourth bus bar (8), wherein the first bus bar (5) and the second bus bar (6) are positioned on the transverse gap (3), one end of the first bus bar (5) is communicated with the positive electrode output end of the battery string (2), the other end of the first bus bar (5) is communicated with the positive electrode leading-out end of the first junction box (4), one end of the third bus bar (7) is communicated with the negative electrode output end of the battery string (2) positioned at the upper end of the laminated member (1), one end of the fourth bus bar (8) is communicated with the negative electrode output end of the battery string (2) positioned at the lower end of the laminated member (1), the other end of the third bus bar (7) is connected with the other end of the fourth bus bar (8) at the transverse gap (3), one end of the second bus bar (6) is communicated with the other end of the fourth bus bar (8), the other end of the second bus bar (6) is communicated with a negative leading-out end of a third junction box (10), and the second junction box (9) is used for current connection.

2. The five-string photovoltaic module of claim 1, wherein: the first junction box (4) is arranged at the position of the laminating piece (1) corresponding to the transverse gap (3).

3. The five-string photovoltaic module of claim 1, wherein: the third bus bar (7) is arranged on the back of the battery string (2), between the battery sheets or on the side surface of the laminating piece (1).

4. The five-string photovoltaic module of claim 1, wherein: the fourth bus bar (8) is arranged on the back of the battery string (2), between the battery sheets or on the side surface of the laminating piece (1).

5. The five-string photovoltaic module of claim 1, wherein: the battery pieces are connected in series when the number of the battery pieces is odd.

6. The five-string photovoltaic module of claim 1, wherein: the battery pieces are connected in parallel when the number of the battery pieces is even.

7. The five-string photovoltaic module of claim 1, wherein: the third bus bar (7) and the fourth bus bar (8) are contacted, and the contact part of the third bus bar (7) and the fourth bus bar (8) is wrapped by an insulating layer.