CN219457543U - Cleaning equipment for surface sizing agent and silicon nitride film of battery piece - Google Patents

Abstract

The utility model provides cleaning equipment for surface sizing agent of a battery piece and a silicon nitride film, which comprises a machine table, a cleaning tank and a cleaning flower basket, wherein the cleaning tank is arranged in the machine table and is divided into three independent tank bodies, namely a first pickling tank, a second film removing tank and a water washing tank, the cleaning flower basket is detachably arranged in the cleaning tank through clamping lugs and can be transferred between the three tank bodies in a portable manner, a rack is arranged above the machine table, and a solution filling tank is arranged outside the rack and is respectively communicated with the interiors of the first pickling tank and the second film removing tank so as to supplement cleaning solution into the tank bodies. Under the current situation that special cleaning equipment does not exist, the equipment is specially designed for detecting the battery piece EL bad pre-treatment battery piece, the cleaning efficiency of the pre-treatment battery piece can be greatly improved, potential safety hazards of operators are eliminated, and the efficiency of the whole EL bad detection process is further improved.

Description

Cleaning equipment for surface sizing agent and silicon nitride film of battery piece

Technical Field

The utility model belongs to the technical field of photovoltaics, and particularly relates to cleaning equipment for surface sizing agent and a silicon nitride film of a battery piece.

Background

With the increasing requirements of the market of photovoltaic terminals on the yield of the component EL, the technical innovation of the production end of the battery piece is also promoted. The problem that the EL reject ratio of a single crystal battery piece is high can influence the quality of a component and further influence the factory price of a solar battery piece, so that the EL reject ratio of a solar finished battery piece needs to be improved, what causes of the EL reject ratio need to be found out, the causes of the EL reject ratio need to be analyzed by removing surface sizing agent and a silicon nitride film, for example, after the front and back sizing agent and the silicon nitride film need to be removed by the EL reject piece with full face fog black, which face can be determined by testing the front and back side sheet resistance is abnormal, and the problems of underetching or overetching of the surface sizing agent and the silicon nitride film can be found out by the EL reject ratio of the battery piece under a microscope are solved, and the EL reject ratio can be improved after the EL reject ratio is found out.

Disclosure of Invention

In view of the above, the utility model provides a cleaning device for a battery piece surface slurry and a silicon nitride film, which is a device designed for pre-processing a battery piece for detecting the defect of the battery piece EL under the current situation that no special cleaning device exists, and can greatly improve the cleaning efficiency of the battery piece at the early stage, eliminate the potential safety hazard of operators and further improve the efficiency of the whole detection process of the defect of the EL. The specific technical scheme is as follows.

The utility model provides a battery piece surface thick liquids and cleaning equipment of silicon nitride membrane, a serial communication port, including the board, washing tank and washing basket of flowers, the washing tank sets up and is divided into three independent cell body in the board, be first pickling tank respectively, second go membrane groove and washing tank, washing basket of flowers is through the detachable setting of card ear in the washing tank to but portable transfer is between three cell body, the board top sets up the frame, the frame outside sets up the solution and adds the jar, respectively with first pickling tank and the inside intercommunication of second go membrane groove, in order to supply cleaning solution to the cell body.

Further, wash the basket of flowers and include both sides board, a plurality of basket of flowers post and two fixed plates, the both ends at the basket of flowers post are fixed to both sides board, and the fixed plate symmetry is fixed on both sides board, is located the outside of basket of flowers post, is fixed with the handle on the fixed plate, makes things convenient for the transfer of pulling basket of flowers between the cell body.

Further, the clamping lugs are arranged on the outer sides of the two side plates.

Further, a door body is arranged on the frame and positioned above the cleaning tank, and the door body is closed to form a closed space in the device.

Further, an exhaust pipe is connected above the frame and is externally connected with an exhaust device, and gas exhaust equipment generated when the sizing agent and the silicon nitride film on the battery piece are cleaned is subjected to environment-friendly treatment.

Further, clamping and fixing parts are arranged on two opposite side surfaces of the cleaning tank, and clamping and fixing parts are arranged on the three tank bodies and used for supporting clamping lugs, so that the flower basket can be conveniently placed.

Further, the flower basket column comprises a top column, side columns and a bottom column, wherein two flower basket columns are respectively arranged in a group, are symmetrically arranged in parallel, and are provided with flower basket teeth at equal intervals on the inner side of the flower basket column for placing the battery pieces.

Further, a liquid discharge pipeline is arranged below the cleaning tank, the liquid discharge pipeline is externally connected with an outlet device, waste liquid is subjected to uniform recovery treatment, and a valve is arranged outside the liquid discharge pipeline.

According to the cleaning equipment for the surface sizing agent and the silicon nitride film of the battery piece, the hydrochloric acid solution is filled in the first pickling tank to remove metal on the battery piece, the hydrofluoric acid solution is filled in the second stripping tank to remove the silicon nitride film on the battery piece, and the water washing tank is filled with clear water to clean residual solution on the battery piece. In addition, the first pickling tank and the second stripping tank are both provided with a solution adding tank, hydrochloric acid and hydrofluoric acid are automatically added to the two tanks, and the effect of cleaning solution is maintained.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

FIG. 1 is a schematic view of a cleaning apparatus according to the present utility model;

FIG. 2 is a schematic rear plan view of the cleaning apparatus of the present utility model;

FIG. 3 is a schematic view of the structure of the cleaning basket of the present utility model;

the device comprises a 1-machine table, a 11-machine frame, a 12-door body, a 13-exhaust pipe, a 2-cleaning flower basket, a 21-clamping lug, a 22-side plate, a 23-flower basket column, a 24-fixed plate, a 231-jacking column, a 232-side column, a 233-bottom column, a 25-handle, a 3-first pickling tank, a 4-second stripping tank, a 5-flushing tank, a 6-solution adding tank, a 7-clamping part, an 8-liquid discharge pipeline and a 9-pipeline.

Description of the embodiments

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. It will be apparent to those skilled in the art that the specific meaning of the terms described above in the present utility model may be understood by specific circumstances.

Referring to fig. 1-2, the cleaning device for the surface slurry and the silicon nitride film of the battery piece of the embodiment comprises a machine table 1, a cleaning tank and a cleaning flower basket 2, wherein the cleaning tank is arranged in the machine table and is divided into three independent tank bodies, namely a first pickling tank 3, a second stripping tank 4 and a water washing tank 5, clamping and fixing parts 7 are arranged on two opposite side surfaces of the cleaning tank, the clamping and fixing parts 7 are respectively arranged on the three tank bodies, the clamping and fixing parts 7 are structures protruding out of the side walls of the tank bodies and are used for supporting clamping lugs 21, and the placement of the cleaning flower basket is facilitated.

Specifically, the cleaning basket 2 of this embodiment includes two side plates 22, a plurality of basket columns 23 and two fixing plates 24, the two side plates 22 are fixed at two ends of the basket columns 23, the basket columns 23 include a top column 231, a side column 232 and a bottom column 233, which are respectively two groups, are symmetrically arranged in parallel, and basket teeth (not shown in the figure and not influencing understanding) are arranged at equal intervals on the inner side of the basket columns 23 for placing the battery pieces. The fixed plates 24 are symmetrically fixed on the two side plates 22 and positioned at the outer sides of the flower basket posts 23, and the handles 25 are fixed on the fixed plates 24 to facilitate the transfer of the flower basket between the groove bodies. The outside of both side plates 22 is convexly provided with clamping lugs 21, the cleaning flower basket 2 can be erected in the cleaning tank through the clamping lugs 21, and an operator can transfer the cleaning flower basket between the three tank bodies through a lifting handle 25.

Preferably, the frame 11 is arranged above the machine table 1, the frame 11 comprises a frame and a coaming, two solution filling tanks 6 are arranged outside the frame 11 and are respectively communicated with the inside of the first pickling tank 3 and the inside of the second stripping tank 4 so as to supplement cleaning solution into the tank body, the solution filling tanks 6 store the cleaning solution, when the concentration of the solution in the first pickling tank 3 and the concentration of the solution in the second stripping tank 4 are insufficient, the solution in the solution filling tanks 6 is filled into the corresponding tank body through a pipeline 9, and a control device is arranged on the pipeline 9 to control the automatic addition of the solution. The solution adding tank 6 is a constant pressure tank filled with hydrochloric acid and hydrofluoric acid respectively, the hydrochloric acid is added to the first pickling tank 3, and the hydrofluoric acid is added to the second stripping tank 4.

In addition, be provided with the door body 12 on the frame 11, be located the washing tank top, become airtight space in the equipment when closing the door body 12, the frame 11 top is connected with exhaust pipe 13, exhaust pipe 13 external exhaust device, exhaust device starts, with the in-process that first pickling tank 3 and second in the equipment go out the membrane groove 4 go out metal paste and go out the silicon nitride membrane acid gas, waste gas discharge collection to unified processing also prevents simultaneously that waste gas from causing the safety problem to the operating personnel.

Further, the liquid discharge pipelines 8 are arranged below the three cleaning tanks, the liquid discharge pipelines 8 are externally connected with equipment, the waste liquid is subjected to uniform recovery treatment, and valves are arranged outside the liquid discharge pipelines.

The cleaning equipment for the surface sizing agent and the silicon nitride film of the battery piece has the advantages of simple structure, safe and concise operation, time and labor saving in work, high cleaning efficiency and the like, and is suitable for being widely popularized and used in the industry.

While the detailed description of the utility model has been made 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 utility model. 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 claims without departing from the spirit of the utility model. Except insofar as variations and modifications in the component parts and/or arrangements are described in the appended claims and the equivalents thereof.

Claims (8)

1. The utility model provides a battery piece surface thick liquids and cleaning equipment of silicon nitride membrane, a serial communication port, including the board, washing tank and washing basket of flowers, the washing tank sets up and is divided into three independent cell body in the board, be first pickling tank, second go membrane groove and washing tank respectively, washing basket of flowers passes through the detachable setting of card ear in the washing tank to but portable transfer is between three cell body, the board top sets up the frame, the frame outside sets up the solution and adds the jar, respectively with first pickling tank and the inside intercommunication of second go membrane groove.

2. The cleaning device for the surface sizing agent and the silicon nitride film of the battery piece according to claim 1, wherein the cleaning basket comprises two side plates, a plurality of basket columns and two fixing plates, the two side plates are fixed at the two ends of the basket columns, the fixing plates are symmetrically fixed on the two side plates and are positioned at the outer sides of the basket columns, and handles are fixed on the fixing plates.

3. The cleaning apparatus for the surface paste of battery piece and the silicon nitride film according to claim 2, wherein the lugs are provided on the outer sides of both side plates.

4. The cleaning device for the surface slurry and the silicon nitride film of the battery piece according to claim 1, wherein a door body is arranged on the frame and is positioned above the cleaning tank, and a closed space is formed in the device for closing the door body.

5. The cleaning device for the surface sizing agent and the silicon nitride film of the battery piece according to claim 1, wherein an exhaust pipe is connected above the frame and externally connected with an exhaust device.

6. The cleaning device for the surface slurry and the silicon nitride film of the battery piece according to claim 1, wherein clamping and fixing parts are arranged on two opposite side surfaces of the cleaning tank, and the three tank bodies are respectively provided with clamping and fixing parts for supporting clamping lugs.

7. The cleaning device for the surface slurry and the silicon nitride film of the battery piece according to claim 2, wherein the basket posts comprise two groups of top posts, side posts and bottom posts, which are symmetrically arranged in parallel, and basket teeth are arranged on the inner sides of the basket posts at equal intervals.

8. The cleaning device for the surface slurry and the silicon nitride film of the battery piece according to claim 1, wherein a liquid discharge pipeline is arranged below the cleaning tank, and the liquid discharge pipeline is externally connected with the device.