CN201788992U

CN201788992U - Liquid-permeable grid plate

Info

Publication number: CN201788992U
Application number: CN2010205048112U
Authority: CN
Inventors: 屈莹; 刘志刚
Original assignee: Changzhou EGing Photovoltaic Technology Co Ltd
Current assignee: Changzhou EGing Photovoltaic Technology Co Ltd
Priority date: 2010-08-26
Filing date: 2010-08-26
Publication date: 2011-04-06
Anticipated expiration: 2020-08-26

Abstract

The utility model relates to a liquid-permeable grid plate which comprises an upper frame rod, a left side rod, a right side rod, partition groove plates and a lower frame rod, wherein the upper frame rod, the left side rod, the right side rod and the lower frame rod are firmly connected respectively to form a grid plate frame; the partition groove plates are respectively parallel to the left side rod and the right side rod and distributed in the grid plate frame; a plurality of silicon wafer slots vertically distributed at equal intervals are formed on the grid plate; and liquid-permeable holes are respectively formed on the left side rod, the right side rod and the partition groove plates. Since the liquid-permeable holes are additionally arranged on the left grid plate and the right grid plate, the silicon wafers are inserted in the silicon wafer slots, the texture-etching solution can be in sufficient contact with the silicon wafers from the liquid-permeable holes, although the left side and the right side of the silicon wafer are inserted into the silicon wafer slot, the texture-etching solution can be in sufficient contact with the silicon wafers from the liquid-permeable holes, the left and the right sides and the middle part of the silicon wafer can be respectively in sufficient contact with the texture-etching solution, and the consistency of texture-etching effect of the entire silicon wafer is enhanced.

Description

Saturating liquid formula screen

Technical field:

The utility model relates to a kind of silicon wafer carrier that uses in the battery slice etching production process, relates in particular to left screen and right screen in the silicon wafer carrier.

Background technology:

In the making herbs into wool production process of solar cell, silicon chip must use silicon wafer carrier to carry out the interval and deposit, and will pass through the processing of NaOH solution, HCl solution, HF solution and the cleaning of clear water therebetween, also will put into drier at last and dry.At present, the employed silicon wafer carrier of making herbs into wool as shown in Figure 1, it is a screen formula structure, surround by left screen 1, right screen 2, front apron 3 and backboard 4 and to form, left side screen 1 is identical with right screen 2 structures, upper end at left screen 1 and right screen 2 is fixed with bracket 5, the lower end, side is provided with bottom bracket 6 within it, madial wall equal intervals ground at left screen 1 and right screen 2 vertically is provided with the silicon chip slot, the silicon chip gag lever post that design level is provided with on the lateral wall of left screen 1 and right screen 2 its objective is to prevent that silicon chip from producing silicon chip and tiltedly blocking phenomenon when spin-drying operation.

In actual use, because the right and left of silicon chip all wants side to insert in the silicon chip slot of left screen and right screen, the right and left of silicon chip and silicon chip slot institute contact portion, owing to can not fully contact with Woolen-making liquid, this a part of making herbs into wool effect is not so good as the good of silicon chip centre certainly, is difficult to reach requirement, and the limit making herbs into wool of the silicon chip left and right sides is inhomogeneous, not only can influence the photoelectric conversion efficiency of battery sheet, but also can influence the presentation quality of battery sheet.

The utility model content:

For overcoming the deficiency that prior art exists, the purpose of this utility model is to provide a kind of liquid formula screen for silicon wafer carrier, this liquid formula of silicon wafer carrier adapted screen can make the consistency of whole making herbs into wool effect of silicon chip, prevents silicon chip the right and left making herbs into wool inequality.

The technical scheme that the utility model is taked is:

A kind of liquid formula screen, it comprises upper ledge bar, left side bar, right-hand rod, separate slot plate and lower frame rod, upper ledge bar, left side bar, right-hand rod and lower frame rod connect into a screen frame securely, the separate slot plate is parallel to left side bar and right-hand rod, and be distributed in the screen frame, make and form some the silicon chip slots that equidistantly vertically distribute on the screen; It is characterized in that: on left side bar, right-hand rod and separate slot plate, all be provided with liquid drain hole.

Owing on left screen and right screen, set up liquid drain hole, silicon chip is inserted in the silicon chip slot, Woolen-making liquid can fully contact with silicon chip from liquid drain hole, though the right and left of silicon chip all is inserted in the silicon chip slot like this, but making herbs into wool solution can fully contact with silicon chip from liquid drain hole, therefore can carry out normal making herbs into wool equally, thereby guarantee that limit, the silicon chip left and right sides can both fully contact with making herbs into wool liquid with mid portion, has improved the consistency of the making herbs into wool effect of whole silicon wafer.

Description of drawings:

Fig. 1 is the structural representation of existing silicon wafer carrier;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is the A-A cutaway view of Fig. 2;

Fig. 4 is a B-B cutaway view among Fig. 2;

Among the figure: the screen of a 1-left side; The right screen of 2-; The 3-front apron; The 4-backboard; The 5-bracket; The 6-bottom bracket; 7-silicon chip slot; The 8-gag lever post; The 9-silicon chip; 21-upper ledge bar; 22-left side bar; The 23-right-hand rod; 24-separate slot plate; The 25-lower frame rod; The 26-liquid drain hole.

Specific embodiments:

Below in conjunction with description of drawings embodiment of the present utility model:

Embodiment 1: following is that 156 * 156 silicon wafer carrier is that example illustrates embodiment of the present utility model with specification:

Specification be 156 * 156 silicon wafer carrier as shown in Figure 1, it is surrounded by left screen 1, right screen 2, front apron 3 and backboard 4 and forms, upper end at left screen 1 and right screen 2 is equipped with bracket 5 symmetrically, is fixed with bottom bracket 6 in the lower end of the medial surface of left screen 1 and right screen 2; Left side screen 1 is identical with the structure of right screen 2, the silicon chip slot 7 that all to offer 25 width vertically on the madial wall of left screen 1 and right screen 2 be 1 mm wide, on bracket 5 and bottom bracket 6, all be provided with 25 width and be 1 millimeter silicon chip slot 7, and bracket 5 is corresponding with the silicon chip slot 7 that screen is provided with the silicon chip slot 7 that bottom bracket 6 is provided with, described left screen 1 and right screen 2 all are liquid formula screens described in the utility model, as Fig. 2～shown in Figure 4, it is by upper ledge bar 21, left side bar 22, right-hand rod 23, separate slot plate 24 and lower frame rod 25 are formed, upper ledge bar 21, left side bar 22, right-hand rod 23 and lower frame rod 25 connect into a screen frame securely, separate slot plate 24 is parallel to left side bar 22 and right-hand rod 23 is distributed in the screen frame, makes and forms 25 equidistantly vertical distribution silicon chip slots 7 on the screen; On left side bar 22, right-hand rod 23 and separate slot plate 24, all be provided with liquid drain hole 26 equably, be provided with two groups of gag lever posts 8, and the home record of two groups of gag lever posts 8 is of a size of 156+0.2 millimeter～156+0.5 millimeter along short transverse.

Claims

1. saturating liquid formula screen, it comprises upper ledge bar (21), left side bar (22), right-hand rod (23), separate slot plate (24) and lower frame rod (25), upper ledge bar (21), left side bar (22), right-hand rod (23) and lower frame rod (25) connect into a screen frame securely, separate slot plate (24) is parallel to left side bar (22) and right-hand rod (23), and be distributed in the screen frame, on screen, form the silicon chip slot (7) that equidistantly vertically distributes; It is characterized in that: on left side bar (22), right-hand rod (23) and separate slot plate (24), all be provided with liquid drain hole (26).