CN220873585U

CN220873585U - PAD structure for solar cell

Info

Publication number: CN220873585U
Application number: CN202322139242.6U
Authority: CN
Inventors: 俞希轮; 刘智生; 王志灵
Original assignee: Truly Semiconductors Ltd
Current assignee: Truly Semiconductors Ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-04-30
Anticipated expiration: 2033-08-09

Abstract

The utility model discloses a PAD structure for a solar cell, which comprises: the FPC, the PAD positive electrode and the PAD negative electrode are provided with a positive electrode connecting position and a negative electrode connecting position, the PAD positive electrode is connected with the positive electrode connecting position, and the PAD negative electrode is connected with the negative electrode connecting position. According to the PAD structure for the solar cell, the PAD positive electrode and the PAD negative electrode of the grid-shaped structure are arranged, so that when the positive electrode and the negative electrode of the PAD are bound with the FPC and hot-pressed, the ACF conduction Jin Qiuhui is used for avoiding being extruded and discharged out of the PAD, and further, the problem that the conductivity of the FPC is poor is solved, and further, the distance between the ACF conduction gold balls extruded out of the edge of the FPC and the positive electrode and the negative electrode parting line of the solar cell is prevented from being relatively close to each other when the ACF conduction gold balls are extruded out of the edge of the FPC and gathered, and the phenomenon of short circuit between the positive electrode and the negative electrode of the solar cell is avoided, so that the possibility that the short circuit of the solar cell is burnt is reduced.

Description

PAD structure for solar cell

Technical Field

The utility model relates to the field of solar cells, in particular to a PAD structure for a solar cell.

Background

The a-Si (amorphous silicon) solar cell has two electrodes of positive electrode and negative electrode for outputting electric energy to the outside, the two electrodes on the glass panel are in block design, the positive electrode and the negative electrode are bound by using FPC, so that the positive electrode and the negative electrode are connected with a main board, but because the contact area of the bound PAD and the FPC is larger, when the positive electrode and the negative electrode are bound with the FPC and hot pressed, the used ACF conduction Jin Qiuhui is extruded to be discharged outside the PAD, after the binding with the FPC, the problem of poor conductivity of the FPC connection is easily caused, and when the ACF conductive gold balls are extruded outside the edge of the FPC to gather, if the distance between the ACF conductive gold balls and the positive electrode and the negative electrode of the solar cell is relatively close, the positive electrode and the negative electrode of the solar cell are short-circuited, so that the solar cell is burnt out.

Disclosure of utility model

The utility model aims to overcome the defects in the prior art and provide a PAD structure for a solar cell, so that poor conductivity of FPC connection is avoided.

The aim of the utility model is realized by the following technical scheme:

A PAD structure for a solar cell, comprising: the lithium ion battery comprises an FPC, a PAD positive electrode and a PAD negative electrode, wherein the FPC is provided with a positive electrode connecting position and a negative electrode connecting position, the PAD positive electrode is connected with the positive electrode connecting position, and the PAD negative electrode is connected with the negative electrode connecting position.

In one embodiment, one end of the PAD anode connected with the anode is in a grid structure.

In one embodiment, one end of the PAD, which is connected to the connection part of the negative electrode and the negative electrode, is in a grid structure.

In one embodiment, the positive electrode connection part is provided with a positive electrode PIN bayonet.

In one embodiment, the negative electrode connection part is provided with a negative electrode PIN bayonet.

In one embodiment, an anode PIN terminal is further disposed at one end of the PAD where the anode is connected to the anode.

In one embodiment, the end of the PAD, where the negative electrode is connected to the negative electrode, is further provided with a negative electrode PIN end.

In one embodiment, the FPC is further provided with a positive and negative electrode dividing line.

In one embodiment, the positive PIN bayonet and the negative PIN bayonet are copper bayonet.

In one embodiment, the FPC is annular.

Compared with the prior art, the utility model has at least the following advantages:

According to the PAD structure for the solar cell, the PAD positive electrode and the PAD negative electrode of the grid-shaped structure are arranged, so that when the positive electrode and the negative electrode of the PAD are bound with the FPC and hot-pressed, the ACF conduction Jin Qiuhui is used for avoiding being extruded and discharged out of the PAD, and further, the problem that the conductivity of the FPC is poor is solved, and further, the distance between the ACF conduction gold balls extruded out of the edge of the FPC and the positive electrode and the negative electrode parting line of the solar cell is prevented from being relatively close to each other when the ACF conduction gold balls are extruded out of the edge of the FPC and gathered, and the phenomenon of short circuit between the positive electrode and the negative electrode of the solar cell is avoided, so that the possibility that the short circuit of the solar cell is burnt is reduced.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described.

FIG. 1 is a schematic diagram of a PAD structure for a solar cell according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

Wherein, the reference numerals are as follows: 10. a PAD structure for a solar cell; FPC;110. the positive electrode joint; 120. a negative electrode joint; 130. positive and negative electrode dividing lines; 111. positive PIN bayonet; 121. a negative PIN bayonet; pad positive electrode; 210. an anode PIN end; pad anode; 310. and a negative PIN terminal.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings.

Example 1:

Referring to fig. 1 and 2, a PAD structure 10 for a solar cell includes: the FPC100, the PAD positive electrode 200 and the PAD negative electrode 300, the FPC100 is provided with a positive electrode connecting position 110 and a negative electrode connecting position 120, the PAD positive electrode 200 is connected with the positive electrode connecting position 110, and the PAD negative electrode 300 is connected with a negative electrode connecting position 310. Preferably, the FPC100 has a circular ring shape, and one end of the PAD positive electrode 200 connected to the positive electrode connection portion 110 has a grid structure. One end of the PAD anode 300 connected with the anode connection part 120 is in a grid structure.

It should be noted that, by designing the end of the PAD positive electrode 200 connected to the positive electrode connection portion 110 and the end of the PAD negative electrode 300 connected to the negative electrode connection portion 120 as a grid structure, when the FPC100 is bonded to the PAD positive electrode 200 and the negative electrode 300 by hot pressing, the conductive ACF gold balls inside the battery are extruded and exploded, and then are not extruded to the outside of the FPC100, and the extruded ACF gold balls can be extruded to the inside of the grid structure of the PAD positive electrode 200 and the PAD negative electrode 300 by the grid structure, so that the ACF gold balls can be connected with the internal traces of the FPC without affecting the conductivity of the ACF gold balls, and meanwhile, the ACF gold balls can not move to the edge of the FPC100 to gather, so as to avoid the ACF gold balls covering the positive and negative electrode parting lines 130 of the FPC100, thereby causing a positive and negative electrode short circuit.

In an embodiment, the positive PIN opening 111 is provided at the positive connection portion 110, the negative PIN opening 121 is provided at the negative connection portion 120, the positive PIN end 210 is further provided at one end of the pad positive electrode 200 connected to the positive connection portion 110, and the negative PIN end 310 is further provided at one end of the pad negative electrode connected to the negative connection portion, it should be noted that, by providing the positive PIN opening 111 at the positive connection portion 110 and the negative PIN opening 121 at the negative connection portion 120, the positive PIN end 210 and the negative PIN end 310 can be firmly bound to the FPC100, falling off is prevented, and abnormal electrification is avoided.

Further, in order to prevent the positive and negative electrodes of the FPC100 from overlapping, a positive and negative electrode dividing line 130 is further provided on the FPC100 to prevent the positive and negative electrodes on the FPC from being connected in parallel to cause a short circuit.

In one embodiment, the positive PIN hole 111 and the negative PIN hole 121 are preferably copper holes, and copper has good electrical conductivity, so that the loss can be reduced by using copper.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model, which are within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A PAD structure for a solar cell, comprising: the lithium ion battery comprises an FPC, a PAD positive electrode and a PAD negative electrode, wherein the FPC is provided with a positive electrode connecting position and a negative electrode connecting position, the PAD positive electrode is connected with the positive electrode connecting position, and the PAD negative electrode is connected with the negative electrode connecting position.

2. The PAD structure for a solar cell according to claim 1, wherein one end of the PAD anode connected to the anode is in a grid structure.

3. The PAD structure for a solar cell according to claim 1, wherein one end of the PAD anode connected to the anode is in a grid structure.

4. The PAD structure for a solar cell according to claim 1, wherein a positive PIN bayonet is provided on the positive connection, and a negative PIN bayonet is provided on the negative connection.

5. The PAD structure for a solar cell according to claim 1, wherein an anode PIN terminal is further provided at one end of the PAD anode connected to the anode connection.

6. The PAD structure for a solar cell according to claim 1, wherein an anode PIN terminal is further provided at an end of the PAD where the anode and the cathode are connected.

7. The PAD structure for a solar cell according to claim 1, wherein positive and negative electrode dividing lines are further provided on the FPC.

8. The PAD structure for a solar cell of claim 4, wherein the positive PIN-clip and the negative PIN-clip are copper-clip.

9. The PAD structure for a solar cell according to claim 1, wherein the FPC is in a ring shape.