CN217425490U

CN217425490U - Probe row structure for EL detection of half battery piece

Info

Publication number: CN217425490U
Application number: CN202220259254.5U
Authority: CN
Inventors: 商贤锋; 陈旭东; 陈健; 杨甜
Original assignee: Siyang Tenghui New Energy Technology Co ltd
Current assignee: Siyang Tenghui New Energy Technology Co ltd
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-09-13
Anticipated expiration: 2032-02-09

Abstract

The utility model discloses a probe row structure for half piece battery piece EL detects, include: the base plate comprises a base plate, a fixed probe and a second movable probe, wherein the base plate comprises a middle base plate and an upper base plate, a plurality of through grooves are formed in the position, corresponding to the fish fork opening of the main grid of the half cell, of the base plate, the second movable probe is arranged in each through groove and comprises a large flat-head probe, an insulating sheet and a conducting sheet, the large flat-head probe is fixed on the insulating sheet, the conducting sheet is fixed on the surface of the insulating sheet and connected with the large flat-head probe, and a conducting elastic sheet is arranged on the conducting sheet. The utility model adopts the mode of combining the small probe and the big probe, and a plurality of big flat probes are arranged at the position of the fish spear opening of the half graph to form a passage with the positive negative electrode of the battery piece, thereby avoiding the problem that EL detection is easy to form middle local darkening or middle local black lines; the movable probe with the big probe and the small probe is arranged to be capable of adapting to the width sizes of different half fishfork openings.

Description

Probe row structure for EL detection of half battery piece

Technical Field

The utility model relates to a photovoltaic cell correlation technique field specifically is a probe row structure for half piece battery piece EL detects.

Background

With the rapid development of photovoltaics, the quality requirements of photovoltaic products are becoming more strict, and particularly, the detection means for the battery piece is becoming more diversified and popular, wherein the battery piece EL detection is also the key point of attention of various suppliers and customers as the important means for the internal detection of the battery piece. On the other hand, with the continuous iteration of the photovoltaic process, half-cell is produced in order to seek higher open-circuit voltage and lower packaging loss to improve the power of the component.

However, the design of the half-chip pattern poses a challenge for EL detection. The width of the fish-fork opening of the main grid at the half position and the distance between the two half patterns are large, so that no current conduction exists in the half cutting area, a middle local dark line or a middle local black line is easy to form, a copper bar is introduced by part of manufacturers for solving the problem, but the copper bar cannot be applied to an IV/EL (integrated circuit/organic light-emitting diode) all-in-one machine (the cracking of the battery cannot be tested), meanwhile, the width of the copper bar is increased, the shading is reduced, the EL hidden crack detection capability of the main grid is reduced, and meanwhile, the rigid contact of the copper bar easily causes the surface of the battery to be pressed and scratched.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a probe row structure for half piece battery piece EL detects to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a probe row structure for EL detection of half-cell comprises: the base plate comprises a base plate, a fixed probe and a second movable probe, wherein the base plate comprises a base plate, a middle base plate and an upper base plate, a plurality of through grooves are formed in the position, corresponding to the fish fork opening of the main grid of the half-cell, of the base plate, the second movable probe is arranged in each through groove and comprises a large flat-head probe, an insulating sheet and a conducting sheet, the large flat-head probe is fixed on the insulating sheet, the conducting sheet is fixed on the surface of the insulating sheet and connected with the large flat-head probe, and a conducting elastic sheet is arranged on the conducting sheet.

As a further aspect of the present invention: still include first activity probe, first activity probe sets up in leading to the inslot, is provided with little probe on the first activity probe, little probe is the same with fixed probe.

As a further aspect of the present invention: the logical inslot side of subbase board is provided with the cavity, the insulating piece both sides are provided with has elastic card.

As a further aspect of the present invention: the base substrate and the upper substrate are made of insulating materials.

As a further aspect of the present invention: the middle substrate is a copper sheet.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model adopts the mode of combining the small probe and the big probe, and the plurality of big flat probes are arranged at the position of the fish spear opening of the half graph, so that the contact area can be increased, and the big flat probes and the positive negative electrode of the battery piece form a passage, thereby avoiding the problem that EL detection is easy to form middle local darkening or middle local black lines; the movable probe with the large probe and the small probe is arranged to adapt to the width sizes of different half fishfork openings, and the width of the movable probe is corresponding to the width of the semi-fishfork opening by increasing or decreasing the small probe.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of a second movable probe according to the present invention.

Fig. 3 is an enlarged structural view at a in fig. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1 and 2, in an embodiment of the present invention, a probe row structure for EL detection of a half battery piece includes: the device comprises a substrate 1, a fixed probe 2, a first movable probe 3 and a second movable probe 4, wherein the substrate 1 comprises a base substrate 11, a middle substrate 12 and an upper substrate 13, the base substrate 11 and the upper substrate 13 are made of insulating materials, the middle substrate 12 is a copper sheet, a plurality of through grooves are formed in the position, corresponding to a semi-cell main grid fish fork opening, of the base substrate 11, the first movable probe 3 and the second movable probe 4 are arranged in the through grooves, wherein the first movable probe 3 and the second movable probe 4 are respectively provided with a small probe and a large flat-head probe 41, the small probe and the fixed probe 2 are the same, the first movable probe 3 and the second movable probe 4 are the same as the structure, the second movable probe 4 is taken as an example and comprises a large flat-head probe 41, an insulating sheet 42 and a conducting sheet 43, the large flat-head probe 41 is fixed on the insulating sheet 42, the conducting sheet 43 is fixed on the surface of the insulating sheet 42 and connected with the large flat-head probe 41, the conductive elastic sheet 44 is arranged on the conductive sheet 43, and after the movable probe is placed in the through groove, the conductive elastic sheet 44 is contacted with the middle substrate 12 to enable the copper sheet to be communicated with the probe;

as shown in fig. 3, a cavity 111 is provided inside the through groove of the bottom substrate 11, two sides of the insulation sheet 42 are provided with elastic cards 421, the movable probe can be fixed by the cards 421 being clamped into the cavity 111, and can be pulled out by external force, so that the probe can be replaced conveniently.

The utility model adopts the mode of combining the small probe and the big probe, and a plurality of big flat probes are arranged at the position of the fish fork opening of the half-piece pattern, so that the contact area can be increased, and a passage is formed between the big flat probes and the positive negative electrode of the battery piece; the movable probe with the large probe and the small probe is arranged to adapt to the width sizes of different half fishfork openings, and the width of the movable probe is corresponding to the width of the semi-fishfork opening by increasing or decreasing the small probe.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A probe row structure for EL detection of half-cell comprises: base plate (1), fixed probe (2), second activity probe (4), its characterized in that: base plate (1) includes base substrate (11), well base plate (12) and upper substrate (13), it sets up a plurality of logical grooves to correspond half battery main grid fish spear mouth position on base substrate (11), second activity probe (4) all set up at logical inslot, and second activity probe (4) are including big crew cut probe (41), insulating piece (42) and conducting strip (43), big crew cut probe (41) are fixed in on insulating piece (42), conducting strip (43) are fixed in insulating piece (42) surface and are connected with big crew cut probe (41), are provided with electrically conductive shell fragment (44) on conducting strip (43).

2. The probe row structure for half-cell EL detection as claimed in claim 1, wherein: still include first activity probe (3), first activity probe (3) set up in leading to the inslot, are provided with little probe on first activity probe (3), little probe is the same with fixed probe (2).

3. The probe row structure for half-cell EL detection as claimed in claim 1, wherein: the logical inslot side of subbase board (11) is provided with cavity (111), insulating piece (42) both sides are provided with and have elastic card (421).

4. The structure of claim 1, wherein the probe row structure for half-cell EL detection comprises: the base substrate (11) and the upper substrate (13) are made of insulating materials.

5. The probe row structure for half-cell EL detection as claimed in claim 1 or 4, wherein: the middle substrate (12) is a copper sheet.