CN217361608U

CN217361608U - Photovoltaic module based on solar cell string

Info

Publication number: CN217361608U
Application number: CN202221183273.0U
Authority: CN
Inventors: 周卫东; 赵文全; 赵群; 李圣久; 张志祥; 苏宏旺
Original assignee: Yangzhou Rilida Photoelectric Development Co ltd
Current assignee: Yangzhou Rilida Photoelectric Development Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-09-02
Anticipated expiration: 2032-05-17

Abstract

The scheme relates to a photovoltaic module based on a solar cell string, which belongs to the technical field of photovoltaic systems and comprises a plurality of cell pieces, wherein every two adjacent cell pieces are arranged into a cell unit with ends facing each other and a gap in the middle; the plurality of battery units are arranged in parallel, so that gaps of the plurality of battery units are positioned on the same straight line to form a conductive channel; the conductive belt is conductive, is filled in the conductive channel and is electrically communicated with the plurality of battery units; and the fixing device comprises an arched fixing button and a screw which are positioned at the edges of the two ends of the conductive strip, and the arched part of the arched fixing button covers the conductive strip. This technical scheme not only can avoid the rosin joint to lead to conductive band and battery piece contact failure, can also guarantee conductive band and battery piece fully contact, and conductive band is firmly difficult to drop.

Description

Photovoltaic module based on solar cell string

Technical Field

The utility model relates to a photovoltaic system technical field, concretely relates to photovoltaic module's improvement based on solar cell cluster.

Background

The solar photovoltaic cell (photovoltaic cell for short) is used for directly converting solar energy into electric energy. The most important of the photovoltaic cells are solar panels, which are mainly used to convert solar energy into electrical energy. The solar cell panel comprises a cell panel without a main grid, and the solar cell panel does not have the main grid, so that a welding process is omitted, the illumination area is increased, and the conversion rate of the cell panel is improved.

If chinese utility model patent publication No. CN215418200U discloses a solar cell cluster and contain the photovoltaic module of solar cell cluster in 2022 year 01 month 04, bond solder strip and solar wafer through with single face scotch tape, welded pad point has been replaced, when preparing the solar cell cluster, it still reduces the shading loss simultaneously to have reduced the silver thick liquid quantity, and can change partial accessory on present welding machine and just can prepare, the method is simple and convenient, need not fix glued membrane and solder strip together in advance, compatible present stringer, the preparation flow has been simplified greatly. But the scotch tape among the above-mentioned utility model patent technical scheme will very easily drop or become flexible along with the live time lapse, leads to welding and separates between area and the solar wafer, and then leads to solar cell panel to become invalid.

SUMMERY OF THE UTILITY MODEL

To the weak point among the prior art, the utility model provides a photovoltaic module based on solar cell cluster solves above-mentioned problem through at conductive area and fixing device.

The technical scheme of the utility model as follows:

a photovoltaic module based on a solar cell string comprises

Every two adjacent battery pieces are arranged to form a battery unit with the ends facing each other and a gap in the middle; the plurality of battery units are arranged in parallel, so that gaps of the plurality of battery units are positioned on the same straight line to form a conductive channel; the conductive belt is conductive, is filled in the conductive channel and is electrically communicated with the plurality of battery units; and the fixing device comprises an arched fixing button and a screw which are positioned at the edges of the two ends of the conductive strip, and the arched part of the arched fixing button covers the conductive strip and is fixed by the screw.

During assembly, the battery pieces are sequentially placed to form the battery unit. The ends of two adjacent battery units face each other, and a gap is formed between the ends. A plurality of battery units are sequentially and parallelly arranged in a solar panel frame from top to bottom, and a conductive channel is formed by the gaps of the battery units on the same straight line. Next, a conductive strip is placed in the conductive channel such that the conductive strip contacts each end of the cell for collecting the current from each cell. Meanwhile, the fixing device is used for firmly fixing the conductive belt in the conductive channel to prevent the conductive belt from falling off. This technical scheme not only can avoid the rosin joint to lead to conductive band and battery piece contact failure, can also guarantee conductive band and battery piece fully contact, and conductive band is firmly difficult to drop.

Further, the conductive belt comprises a cylindrical pressing part and a convex strip fixed under the pressing part, and the width of the convex strip is matched with the width of the gap of the battery unit.

Furthermore, the cross section of each convex strip is in a conical shape. The conical shape can enable the conductive belt to be in close contact with the battery piece, so that a gap is avoided between the conductive belt and the battery piece, and poor conduction of the solar cell panel is further avoided.

Furthermore, an elastic piece is arranged at the joint of the bow-shaped fixing button and the conductive belt. The elastic component is used for providing a pretightening force for the conductive belt when the conductive belt is locked by the fixing button, so that the conductive belt is fully contacted with the battery piece, and a gap is prevented from being generated between the conductive belt and the battery piece.

Further, the elastic member is rubber.

Further, the elastic member is a spring.

Further, the conductive belt is an aluminum belt.

Advantageous effects

The utility model discloses a put each battery piece in proper order, form battery unit. The ends of two adjacent battery units face each other, and a gap is formed between the ends. A plurality of battery units are sequentially and parallelly arranged in a solar panel frame from top to bottom, and a conductive channel is formed by the gaps of the battery units on the same straight line. Next, a conductive strip is placed in the conductive channel such that the conductive strip contacts each end of the cell for collecting the current from each cell. Meanwhile, the fixing device is used for firmly fixing the conductive belt in the conductive channel to prevent the conductive belt from falling off. This technical scheme not only can avoid rosin joint to lead to conductive band and battery piece contact failure, can also guarantee conductive band and battery piece fully contact, and conductive band is firm to be difficult to drop.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a photovoltaic module based on a solar cell string;

FIG. 2 is a schematic cross-sectional view of the fixing device of the present application;

1. a battery piece; 2. a gap; 3. a conductive path; 4. a conductive tape; 41. a tapered shape; 42. a convex strip; 5. a battery cell; 6. a fixing device; 61. an arcuate securing knob; 62. a screw; 7. an elastic member.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-2, a photovoltaic module based on a solar cell string comprises a plurality of cell sheets 1, wherein each two adjacent cell sheets 1 are arranged to have end portions facing each other, and a cell unit 5 with a gap 2 is arranged in the middle; the battery units 5 are arranged in parallel, so that the gaps 2 of the battery units 5 are positioned on the same straight line to form a conductive channel 3; the conductive belt 4 is conductive, is filled in the conductive channel 3 and is electrically communicated with the plurality of battery units 5; and the fixing device 6 comprises an arc-shaped fixing button 61 and a screw 62 which are positioned at the edges of the two ends of the conductive band 4, the arc-shaped part of the arc-shaped fixing button 61 covers the conductive band 4 and is fixed by the screw 62.

During assembly, the battery cells 1 are sequentially arranged to form the battery unit 5. The ends of two adjacent battery cells 5 face each other with a gap 2 formed therebetween. A plurality of battery units 5 are sequentially and parallelly arranged in a solar panel frame from top to bottom, and gaps 2 of the battery units 5 on the same straight line form a conductive channel 3. Next, the conductive tape 4 is placed in the conductive path 3 such that the conductive tape 4 is in contact with each end of the battery for collecting current from each cell 1. Meanwhile, the fixing device 6 is used for firmly fixing the conductive belt 4 in the conductive channel 3 to avoid falling off. This technical scheme not only can avoid rosin joint to lead to

conductive band

4 and 1 contact failure of battery piece, can also guarantee

conductive band

4 and 1 abundant contacts of battery piece, and conductive band 4 is firmly difficult to drop.

Further, the conductive strip 4 comprises a cylindrical pressing part and a convex strip 42 fixed under the pressing part, and the width of the convex strip 42 is matched with the width of the gap 2 of the battery unit 5. Make in the sand grip 42 can insert electrically conductive passageway 3 to can closely cooperate with the battery piece 1 in the electrically conductive passageway 3, avoid both to appear not hard up, and then avoid appearing contact failure phenomenon.

Further, the cross section of the convex strip 42 is in a tapered shape 41. The tapered shape 41 enables the conductive belt 4 to be in close contact with the cell 1, so that a gap between the conductive belt and the cell is avoided, and poor conduction of the solar cell panel is further avoided.

Furthermore, an elastic part 7 is arranged at the joint of the arc-shaped fixing button 61 and the conductive belt 4. The elastic piece 7 is used for providing a pretightening force for the conductive belt 4 when the fixing button locks the conductive belt 4, so that the conductive belt 4 is fully contacted with the battery piece 1, and a gap 2 is prevented from being formed between the conductive belt 4 and the battery piece.

Further, the elastic member 7 is rubber.

Further, the elastic member 7 is a spring.

Further, the conductive belt 4 is an aluminum belt. The aluminum strip has the advantages of low price and good conductivity, and effectively reduces the production cost.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. A photovoltaic module based on a solar cell string is characterized by comprising

The battery unit comprises a plurality of battery pieces (1), wherein every two adjacent battery pieces (1) are arranged to form a battery unit (5) with ends facing each other and a gap (2) in the middle; the battery units (5) are arranged in parallel, so that gaps (2) of the battery units (5) are positioned on the same straight line to form a conductive channel (3); and

the conductive belt (4) is conductive, is filled in the conductive channel (3), and is electrically communicated with the plurality of battery units (5); and

the fixing device (6) comprises an arched fixing button (61) and a screw (62) which are positioned at the edges of the two ends of the conductive belt (4), and the arched part of the arched fixing button (61) covers the conductive belt (4) and is fixed by the screw (62).

2. The solar string-based photovoltaic module according to claim 1, wherein the conductive strips (4) comprise a cylindrical press part and ribs (42) fixed under the press part, the width of the ribs (42) being adapted to the width of the gaps (2) of the cells (5).

3. The string-based photovoltaic module according to claim 2, characterized in that the cross-section of the ribs (42) is of a tapered shape (41).

4. The photovoltaic module based on a solar cell string as claimed in claim 1, characterized in that the connection of the bow-shaped fixing knob (61) and the conductive tape (4) is provided with an elastic member (7).

5. The solar-string-based photovoltaic module according to claim 4, characterized in that the elastic member (7) is rubber.

6. The string-based photovoltaic module according to claim 4, characterized in that the elastic member (7) is a spring.

7. The solar string-based photovoltaic module according to claim 1, characterized in that the conductive tape (4) is an aluminum tape.