CN213124470U - Silicon chip basket of flowers system of dehydrating in advance - Google Patents

Abstract

The invention provides a silicon wafer basket pre-dehydration system which is characterized by comprising a support and a suction pipe, wherein the support is an L-shaped frame, the suction pipe is fixedly arranged on a bottom frame of the support, rows of water suction holes are uniformly formed in the side wall of the suction pipe, one end of the suction pipe is closed, the other end of the suction pipe is connected with a hose, the other end of the hose is communicated with a water suction pump, the water suction pump provides suction for the suction pipe, and liquid absorbed by the suction pipe can be conveyed into a liquid discharge pipe through the hose. The invention has reasonable structure and simple and controllable operation, the suction pipe sucks the liquid drops at the contact position of the bottom of the flower basket, the pneumatic double-diaphragm pump is adopted to take away the liquid drops, and the residual liquid is discharged through the liquid discharge pipe, thereby solving the problem that the existing flower basket carries the residual liquid, relieving the pressure of long follow-up drying time and low capacity, improving the A-grade product rate of the cell piece under the condition of reducing the drying time, and having wide application prospect in the field of solar cells.

Description

Silicon chip basket of flowers system of dehydrating in advance

Technical Field

The invention belongs to the field of solar cells, and particularly relates to a silicon wafer basket pre-dehydration system.

Background

In the production of crystalline silicon solar cells, a wet process technology is an indispensable process flow, and wet treatment processes are used in the working procedures of cleaning a damaged layer on the surface of a cut silicon wafer, pre-cleaning and texturing a cell, etching, polishing and the like. A large number of fragile silicon wafers are required to be uniformly separated and immersed into each reaction tank one by one for carrying out timing and quantitative chemical reactions in the groove type wet method treatment process, so that the silicon wafers are required to be uniformly placed in layers by a proper device, a wet method flower basket is currently used as the most important tool for the step, after the flower basket is lifted from a groove body, residual liquid is very easily carried at the bottom of the flower basket, liquid is mainly remained at the center of the bottom of a bottom rod, the liquid drop is generally acidic or alkaline, the PN junction of the front side of the silicon wafers in the flower basket can be damaged in a subsequent drying groove, the back side of the silicon wafers is polluted, black spots and black spots are formed, and the A.

Disclosure of Invention

In view of the above, the invention provides a silicon wafer basket pre-dehydration system, wherein a suction pipe sucks liquid drops at a contact position of the bottom of a basket, a pneumatic double-diaphragm pump is adopted to take the liquid drops away, and residual liquid is discharged through a liquid discharge pipe, so that the problem that the liquid drops are remained at the bottom of the basket is solved, and the yield of battery pieces is improved.

The specific technical scheme of the invention is as follows:

the utility model provides a silicon chip basket of flowers dewatering system in advance, its characterized in that, includes support and straw, the support is "L" type frame, the straw fixed set up in on the underframe of support, the even hole that absorbs water in a row of having seted up on the straw lateral wall, just the one end of straw is closed, other end coupling hose, the other end intercommunication suction pump of hose, the suction pump does the straw provides suction to the accessible hose sends the imbibition liquid of straw to in the flowing back pipe.

Further, the straw is made of PVDF.

Further, the water suction pump is a pneumatic double-diaphragm pump.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic structural diagram of a silicon wafer basket pre-dehydration system according to the present invention;

the device comprises a support 1, a suction pipe 2, a water suction hole 3, a water suction pump 4, a hose 5, a liquid discharge pipe 6, a flower basket 7 and a bottom rod 8.

Detailed Description

The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

Referring to fig. 1, the silicon wafer basket pre-dehydration system of this embodiment includes support 1 and straw 2, and support 1 is "L" type frame, and straw 2 is fixed to be set up on the underframe of support 1, and the even in bank hole 3 that absorbs water that has seted up on the 2 lateral walls of straw, and the one end of straw 2 is closed, other end coupling hose 5, the other end intercommunication suction pump 4 of hose 5, suction pump 4 provides suction for straw 2 to the accessible hose 5 is sent the liquid that straw 2 absorbs to in the fluid-discharge tube 6. The PVDF material is preferably selected as the suction pipe 2, and the water pump 4 is a pneumatic double-diaphragm pump.

The silicon wafer basket pre-dehydration system is reasonable in structure and simple and controllable to operate, the water suction pump 4 starts to pump water before the basket 7 is lifted by the slow lifting groove in the pre-dehydration system, water at the bottom of the bottom rod 8 of the basket 7 is sucked by the suction pipe 2 and is discharged through the liquid discharge pipe connected with the other end of the water suction pump 4, and after the mechanical arm lifts the basket 7 from the slow lifting groove, the water suction pump 4 stops pumping water, so that the problem that the existing basket carries residual liquid is solved, liquid (acid, alkali and water) brought into a subsequent drying groove is reduced, pressure of long subsequent drying time and low yield is relieved, the proportion of EL black spots is reduced under the condition of reducing the drying time, the A-grade product rate of a cell is improved, and the silicon wafer basket pre-dehydration system has a wide application prospect in the field of solar cells.

While specific embodiments of the invention have been described in detail with reference to exemplary embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. In particular, reasonable variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the foregoing disclosure, the drawings and the appended claims without departing from the spirit of the invention. Except variations and modifications in the component parts and/or arrangements, the scope of which is defined by the appended claims and equivalents thereof.

Claims (3)

1. The utility model provides a silicon chip basket of flowers dewatering system in advance, its characterized in that, includes support and straw, the support is "L" type frame, the straw fixed set up in on the underframe of support, the even hole that absorbs water in a row of having seted up on the straw lateral wall, just the one end of straw is closed, other end coupling hose, the other end intercommunication suction pump of hose, the suction pump does the straw provides suction to the accessible hose sends the imbibition liquid of straw to in the flowing back pipe.

2. The silicon wafer basket pre-dewatering system of claim 1, wherein the suction tube is PVDF.

3. The silicon wafer basket pre-dehydration system of claim 1 wherein said water pump is a pneumatic double diaphragm pump.

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