CN201397821Y

CN201397821Y - Graphite carrying plate

Info

Publication number: CN201397821Y
Application number: CN2009200136082U
Authority: CN
Inventors: 夏铁; 孙小刚; 李雪亮
Original assignee: JINZHOU HUACHANG PHOTOVOLTANIC TECHNOLOGY Co Ltd
Current assignee: JINZHOU HUACHANG PHOTOVOLTANIC TECHNOLOGY Co Ltd
Priority date: 2009-05-07
Filing date: 2009-05-07
Publication date: 2010-02-03
Anticipated expiration: 2019-05-07

Abstract

The utility model discloses a graphite carrying plate used in the film coating work procedure of the solar energy cell production process, which comprises a graphite bearing plate on which a pluralityof silicon slice bearing square holes are evenly arranged. Two parallel opposite sides in the silicon slice bearing square hole are symmetrically provided with a metal pothook and another two parallel opposite sides are symmetrically provided with a locating hook. The two sides of the bottom face of the graphite bearing plate are provided with a graphite slideway strip. The lower surface of the graphite bearing plate is higher than the pothook top end of the metal pothook by 0.5mm to 1.5mm. The thickness of the metal pothook is 0.4mm to 0.5mm. The utility model can improve the electrical parameter and the transformation efficiency of the solar energy cell obviously, reduce the technology point area and improve the appearance of the solar energy cell and the product quality.

Description

The graphite support plate

Technical field

The utility model relates to a kind of aid that uses in the solar cell production process, particularly a kind of graphite support plate.

Background technology

Manufacture of solar cells technology generally comprises cleaning and texturing, diffusion, etching, dephosphorization silex glass, plated film, prints electrode, sintering and testing, sorting operation, and wherein silicon chip is to be contained on the graphite support plate, to be placed on and to carry out plated film processing on the filming equipment in filming process.Silicon chip lies in before processing in the graphite support plate, and the graphite support plate is by four metal hanger carrying positions, silicon chip both sides of the edge, and locate silicon chip with the straight hook of metal both sides in addition.Existing graphite support plate lower surface is higher than metal hanger top 5mm, metal hanger thickness is 1mm, therefore the silicon chip upper surface has certain distance to the support plate lower surface, cause in the process of process cavity plasma deposition, can forming the very thin film of one deck, have a strong impact on the electrical quantity of back solar cell in the silicon chip dorsal edge; And the inherent shortcoming of four process point (not having film forming) can appear at four metal hanger places behind the silicon chip back side coating film.

Summary of the invention

The purpose of this utility model is will provide a kind of can obviously promote solar cell electrical quantity and transformation efficiency, reduces the process point area, improves the solar cell outward appearance, the graphite support plate that improves the quality of products.

The utility model is achieved in that it has a graphite loading plate, on the graphite loading plate, be evenly equipped with a plurality of silicon chip carrying square holes, be arranged with metal hanger on two parallel opposite faces in silicon chip carrying square hole, in silicon chip carrying square hole, be arranged with location hook on two parallel opposite faces in addition, be provided with graphite slideway bar in both sides, graphite loading plate bottom surface, its special character is: described graphite loading plate lower surface is higher than the hook top 0.5-1.5mm of metal hanger, and the thickness of metal hanger is 0.4-0.5mm.

Above-mentioned graphite support plate, described graphite loading plate lower surface is higher than the hook top 1mm of metal hanger.

The utility model has the advantages that: graphite loading plate lower surface is higher than the hook top 0.5-1.5mm of metal hanger, reduced the height of hook, directly shortened the distance of silicon chip upper surface to graphite loading plate lower surface, solved the problem of silicon chip dorsal edge film forming, the electrical quantity of solar cell and transformation efficiency all have tangible lifting; The reduced thickness of metal hanger is 0.4-0.5mm, has directly reduced the area of process point, and the outward appearance of solar cell improves, and has improved product quality.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the upward view of Fig. 1;

Fig. 3 is the partial enlarged drawing of Fig. 1;

Fig. 4 is the A-A cutaway view of Fig. 3;

Fig. 5 is the B-B cutaway view of Fig. 3.

Among the figure: graphite loading plate 1, silicon chip carrying square hole 2, metal hanger 3, location hook 4, graphite slideway bar 5, cushion block 6.

Embodiment

As shown in the figure, the utility model has a rectangle graphite loading plate 1 that adopts graphite to make, uniformly on graphite loading plate 1 be processed with a plurality of silicon chips carryings square holes 2 that match with silicon chip, present embodiment silicon chip carrying square hole 2 has totally three ten six of six row, six row, and its quantity is not subjected to the restriction of present embodiment.Be symmetrically fixed with two pairs of metal hangers 3 on two parallel opposite faces in each silicon chip carrying square hole 2, in silicon chip carrying square hole 2, be symmetrically fixed with two pairs of metal location hooks 4 on to parallel opposite face with perpendicular another of above-mentioned opposite face, described metal hanger 3 and location hook 4 have two kinds respectively, be a kind ofly to be respectively one-sided hook and one-sided location hook, another kind ofly to be both sides hook and both sides location hook, one-sided hook and one-sided location hook are positioned at the outside that the silicon chip around the graphite loading plate 1 carries square hole 2.Be provided with cushion block 6 respectively at corresponding metal hanger 3 of the upper and lower surface of graphite loading plate 1 and location hook 4 places, so that fixing metal hook 3 and location hook 4 are provided with graphite slideway bar 5 in graphite loading plate 1 lower surface both sides.Described graphite loading plate 1 lower surface is higher than the hook top 0.5-1.5mm of metal hanger 3, and its preferred value a is 1mm, and the thickness b of metal hanger 3 is 0.4-0.5mm, and the thickness b of metal hanger 3 is example with 0.5mm in the present embodiment.Adding man-hour, silicon chip is lain in the silicon chip carrying square hole 2, by two pairs of metal hangers, 3 carrying positions, silicon chip both sides of the edge, locate with 4 pairs of silicon chips of location hook both sides in addition, and the graphite support plate of again this being filled silicon chip is put into and gets final product plated film on the filming equipment.

Claims

1, a kind of graphite support plate, comprise the graphite loading plate, on the graphite loading plate, be evenly equipped with a plurality of silicon chip carrying square holes, be arranged with metal hanger on two parallel opposite faces in silicon chip carrying square hole, in silicon chip carrying square hole, be arranged with location hook on two parallel opposite faces in addition, be provided with graphite slideway bar in both sides, graphite loading plate bottom surface, it is characterized in that: described graphite loading plate lower surface is higher than the hook top 0.5-1.5mm of metal hanger, and the thickness of metal hanger is 0.4-0.5mm.

2, graphite support plate according to claim 1 is characterized in that: described graphite loading plate lower surface is higher than the hook top 1mm of metal hanger.