Light-induced horizontal electroplating equipment

Abstract

The utility model relates to light-induced horizontal electroplating equipment, and belongs to the technical field of solar cell processing. The device mainly comprises a rack, a box body, a partition plate, a lamp tube, a conveying roller, a baffle, a motor, an anode metal sheet, a connecting piece and a cathode metal sheet, according to the equipment, a horizontal electroplating mode is adopted, the situation that a clamp is used for clamping a battery piece is avoided, the influence of a clamping point on the integrity of a grid line is reduced, meanwhile, the rejection rate caused by clamping is reduced, in addition, complex equipment is not needed for horizontal electroplating to ensure the stability and controllability of the deposition process, the operation process is simplified, and the cost is reduced; by means of the design of the conveying rollers, the battery pieces can be automatically conveyed in the electroplating process, continuous production is achieved, manual intervention is reduced, the production efficiency is further improved, a plating layer can be more uniform and compact through the light-induced horizontal electroplating technology, and the quality of the plating layer is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to solar cell processing technical field, concretely relates to a light induction horizontal plating equipment. BACKGROUND

[0002] At present, the grid line on the surface of the crystalline silicon solar cell piece is made by screen printing silver paste, with the increase of market demand, silver paste has been unable to further meet the expansion of the crystalline silicon cell piece, therefore, reducing the silver paste consumption or using base metal to replace becomes the research hotspot, the metal that can replace silver and the resistivity is close to silver is copper, it is difficult to realize by using copper paste, and the sintering temperature is high, easy to oxidize, limit the use of copper paste, therefore, electrochemical deposition copper becomes the optimal scheme of replacing silver paste.

[0003] At present, the scheme of electrochemical deposition copper mainly adopts vertical type, the vertical type needs clamp, there will be clamping point in the clamping process, further influence the integrity of the cell piece grid line, at the same time, the vertical type electrochemical deposition copper usually needs relatively complex equipment to ensure the stability and controllability of the deposition process, the operation is complex, and the cost is expensive. UTILITY MODEL CONTENTS

[0004] In order to overcome the problem that the vertical type electrochemical deposition copper needs clamp, there will be clamping point in the clamping process, further influence the integrity of the cell piece grid line, at the same time, the vertical type electrochemical deposition copper usually needs relatively complex equipment to ensure the stability and controllability of the deposition process, the operation is complex, and the cost is expensive, the utility model provides a light induction horizontal plating equipment;The equipment adopts horizontal plating mode, avoids using clamp to hold the cell piece, reduces the influence of clamping point on the integrity of the grid line, also reduces the scrap rate caused by clamping, in addition, horizontal plating does not need complex equipment to ensure the stability and controllability of the deposition process, simplifies the operation process, reduces the cost, the design of conveying roller makes the cell piece can be automatically transmitted in the plating process, realizes continuous production, reduces manual intervention, further improves production efficiency, the light induction horizontal plating technology can make the plating layer more uniform and dense, improves the quality of the plating layer.

[0005] In order to achieve the above object, the utility model is through the following technical scheme realizes: a light induction horizontal electroplating equipment mainly includes frame, box, baffle, lamp tube, conveying roller, baffle, motor, anode metal sheet, connecting piece, cathode metal sheet, the box is installed at the top of frame, the box inside is cavity structure, the baffle is installed in the cavity mechanism inside, the baffle divides the box into upper layer box, lower layer box, and the electroplating solution is contained in the upper layer box inside, the lamp tube is installed in the lower layer box inside, the conveying roller rotatable installation is in the upper layer box inside, the baffle is installed at the top of box, and the motor is installed on the side wall of baffle, and the conveying roller is connected with the motor, and the conveying roller is connected through the chain transmission mechanism between the conveying roller, and the anode metal sheet is detachably installed on the baffle, and the anode metal sheet contacts the electroplating solution, and the connecting piece is installed on the baffle, and the cathode metal sheet is installed on the connecting piece, and is located in the conveying roller directly above, and the gap for conveying solar cell piece is formed between the conveying roller and the cathode metal sheet, and the solar cell piece top end contacts the cathode metal sheet, and the bottom end contacts the conveying roller and the electroplating solution, and the box outside is provided with power supply, and the positive pole of power supply connects the anode metal sheet, and the negative pole connects the cathode metal sheet.

[0006] The box and the baffle are provided with transparent structure.

[0007] The box is provided with guide plates at the front and rear ends.

[0008] The utility model discloses the beneficial effect:

[0009] The equipment adopts horizontal electroplating mode, avoids using the fixture to hold the cell piece, reduces the influence of holding point to the integrity of grid line, also reduces the scrap rate caused by holding, in addition, horizontal electroplating does not need complex equipment to ensure the stability and controllability of deposition process, simplifies the operation process, reduces the cost, the design of conveying roller makes the cell piece can be automatically transmitted in the electroplating process, realizes continuous production, reduces manual intervention, further improves production efficiency, and the light induction horizontal electroplating technology can make the plating layer more uniform and dense, improves the quality of plating layer. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is isometric schematic diagram of the utility model.

[0011] Figure 2 It is three-dimensional schematic diagram of the utility model.

[0012] Figure 3 It is first partial section schematic diagram of the utility model.

[0013] Figure 4 It is second partial section schematic diagram of the utility model.

[0014] Figure 5 It is third partial section schematic diagram of the utility model. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and beneficial effects of the utility model more clear, the preferred embodiments of the utility model will be described in detail below with reference to the drawings, so as to facilitate the understanding of the technical personnel.

[0016] The utility model discloses a kind of photoinduced horizontal electroplating equipment, the photoinduced horizontal electroplating equipment mainly includes rack 1, box 2, baffle 3, lamp tube 4, conveying roller 5, baffle 6, motor 7, anode metal sheet 8, connecting piece 9, cathode metal sheet 10, the box 2 is installed at rack 1 top, box 2 inside is cavity structure, baffle 3 is installed in cavity mechanism inside, baffle 3 separates box 2 into upper layer box 21, lower layer box 22, electroplating liquid is contained in upper layer box 21 inside, lamp tube 4 is installed in lower layer box 22 inside, conveying roller 5 rotatable installation is in upper layer box 21 inside, baffle 6 is installed at box 2 top, motor 7 is installed on the side wall of baffle 6, conveying roller 5 is connected with motor 7, conveying roller 5 is connected by chain transmission mechanism between, anode metal sheet 8 is detachably installed on baffle 6, anode metal sheet 8 contacts with electroplating liquid, connecting piece 9 is installed on baffle 6, cathode metal sheet 10 is installed on connecting piece 9, located conveying roller 5 directly above, gap for conveying solar cell piece is formed between conveying roller 5, cathode metal sheet 10, solar cell piece top end contacts with cathode metal sheet 10, bottom end contacts with conveying roller 5, electroplating liquid, power supply is provided outside box 2, the positive pole of power supply connects anode metal sheet 8, negative pole connects cathode metal sheet 10.

[0017] The electroplating solution is contained in the upper box 21, and the electroplating solution is sufficient and at a suitable temperature and concentration. The lamp 4 is started, and the light emitted by the lamp 4 irradiates the inside of the solar cell, providing a light-induced effect for the electroplating process. The motor 7 drives the conveying roller 5 to rotate, and the conveying roller 5 is connected by a chain transmission mechanism to rotate smoothly. The anode metal sheet 8 is detachably installed on the baffle 6 and in contact with the electroplating solution, serving as an anode. The cathode metal sheet 10 is installed on the connecting piece 9 above the conveying roller 5, serving as a cathode. The box 2 is provided with a power supply outside, and the positive electrode of the power supply is connected to the anode metal sheet 8, and the negative electrode is connected to the cathode metal sheet 10, forming a complete circuit. The solar cell enters the upper box 21 under the guidance of the guide plate 23 and falls on the conveying roller 5. The rotation of the conveying roller 5 conveys the cell forward, so that it passes through each station in turn. When the cell passes above the lamp 4, the light emitted by the lamp 4 irradiates the surface of the cell. Under the induction of light, the solar cell generates current, so that the power supply, the anode metal sheet 8, the electroplating solution, the solar cell, and the cathode metal sheet 10 form a loop for light-induced electroplating. The current can pass through the cell to promote the electroplating process. The cell is continuously electroplated during the conveying process until it reaches the end of the device. The cell after electroplating is discharged from the end of the device and can be processed or inspected subsequently.

[0018] The box 2 and the baffle 6 are provided in a transparent structure, which facilitates observation of the electroplating process and timely discovery and adjustment of problems.

[0019] As shown in Figure 1 , Figure 2 , Figure 3 The box 2 is provided with guide plates 23 at the front and rear ends. The guide plates 23 at the front and rear ends help to smoothly convey the solar cell and avoid deviation or jamming during the electroplating process.

[0020] Working process:

[0021] The electroplating solution is contained in the upper box 21, and the electroplating solution is sufficient and at a suitable temperature and concentration. The lamp 4 is started, and the light emitted by the lamp 4 irradiates the inside of the solar cell, providing a light-induced effect for the electroplating process. The motor 7 drives the conveying roller 5 to rotate, and the conveying roller 5 is connected by a chain transmission mechanism to rotate smoothly. The anode metal sheet 8 is detachably installed on the baffle 6 and is in contact with the electroplating solution, serving as an anode. The cathode metal sheet 10 is installed on the connecting piece 9 and is located directly above the conveying roller 5, serving as a cathode. The box 2 is externally provided with a power supply, the positive electrode of the power supply is connected to the anode metal sheet 8, and the negative electrode is connected to the cathode metal sheet 10, forming a complete circuit. The solar cell enters the upper box 21 under the guidance of the guide plate 23 and falls on the conveying roller 5. The rotation of the conveying roller 5 forwards the cell, so that it passes through each station in turn. When the cell passes above the lamp 4, the light emitted by the lamp 4 irradiates the surface of the cell. Under the induction of light, the solar cell generates current, so that the power supply, the anode metal sheet 8, the electroplating solution, the solar cell, and the cathode metal sheet 10 form a loop, and the light-induced electroplating is carried out. The current can pass through the cell to promote the electroplating process. The cell is continuously electroplated during the conveying process until it reaches the end of the device. The cell after electroplating is sent out from the end of the device and can be subjected to subsequent processing or inspection.

[0022] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and detail without departing from the scope defined by the claims of the present application.

Claims

1. A photo-induced horizontal electroplating device, characterized in that: The aforementioned light-induced horizontal electroplating equipment includes a frame (1), a housing (2), a partition (3), a lamp tube (4), a conveyor roller (5), a baffle (6), a motor (7), an anode metal sheet (8), a connector (9), and a cathode metal sheet (10). The housing (2) is installed at the top of the frame (1). The interior of the housing (2) is a cavity structure. The partition (3) is installed inside the cavity structure, dividing the housing (2) into an upper housing (21) and a lower housing (22). The electroplating solution is placed inside the upper housing (21). The lamp tube (4) is installed inside the lower housing (22). The conveyor roller (5) is rotatably installed inside the upper housing (21). The baffle (6) is installed at the top of the housing (2). A motor (7) is installed on the side wall. The conveying roller (5) is connected to the motor (7). The conveying rollers (5) are connected by a chain drive mechanism. The anode metal sheet (8) is detachably installed on the baffle (6). The anode metal sheet (8) is in contact with the electroplating solution. The connector (9) is installed on the baffle (6). The cathode metal sheet (10) is installed on the connector (9) and located directly above the conveying roller (5). A gap for conveying solar cells is formed between the conveying roller (5) and the cathode metal sheet (10). The top of the solar cell is in contact with the cathode metal sheet (10), and the bottom is in contact with the conveying roller (5) and the electroplating solution. A power supply is provided outside the box (2). The positive terminal of the power supply is connected to the anode metal sheet (8), and the negative terminal is connected to the cathode metal sheet (10).

2. The photo-induced horizontal electroplating equipment as described in claim 1, characterized in that: The box (2) and baffle (6) are designed to be transparent.

3. The photo-induced horizontal electroplating equipment as described in claim 1 or 2, characterized in that: The box body (2) is provided with guide plates (23) at both the front and rear ends.

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