CN117661084A

CN117661084A - Solar cell electroplating equipment

Info

Publication number: CN117661084A
Application number: CN202211189778.2A
Authority: CN
Inventors: 请求不公布姓名; 姚宇; 李中天
Original assignee: Suzhou Taiyangjing New Energy Co ltd
Current assignee: Suzhou Taiyangjing New Energy Co ltd
Priority date: 2022-08-23
Filing date: 2022-09-28
Publication date: 2024-03-08
Also published as: CN219239806U

Abstract

The invention discloses solar cell electroplating equipment which comprises a clamping assembly and a transmission mechanism for transmitting the clamping assembly along a transmission direction, wherein the transmission mechanism is provided with a first position and a second position which are arranged at intervals along the transmission direction. The clamping assemblies are provided with a plurality of groups which are arranged at intervals along the transmission direction, and each group of clamping assemblies is provided with a closed state and an open state. The electroplating apparatus further includes an opening and closing mechanism for actuating the clamping assembly between the open state and the closed state at the first position and for actuating the clamping assembly between the open state and the closed state at the second position. According to the solar cell electroplating equipment provided by the invention, the opening and closing mechanism is arranged, so that the cell can be automatically clamped at the first position and released at the second position, manual intervention is not needed, and the electroplating efficiency of the solar cell is obviously improved.

Description

Solar cell electroplating equipment

Technical Field

The invention relates to the field of solar cell electroplating, in particular to solar cell electroplating equipment.

Background

With the continuous expansion of the scale of the photovoltaic industry and the rapid development of the market, more and more solar cell manufacturers seek technical improvements in terms of simplified procedures and reduced cost. In the existing solar cell, a metal grid line is generally prepared on the cell by adopting a method of screen printing conductive silver paste and then sintering, but the cost of the conductive silver paste is higher and accounts for more than 25% of the total cost of the solar cell, so that the search for a substitute of the silver paste is a key point for reducing the production cost.

Currently, many businesses use electrolytic copper plating instead of silver paste printing. The basic principle of the electroplated copper grid line is that a plating metal (copper) is used as an anode, a workpiece (a battery piece) to be plated is used as a cathode, the cathode and the anode are arranged in a gap of an electroplating solution containing copper ions to form a closed loop, after the electroplating solution is electrified, the cathode and the anode form a potential difference, and the copper ions in the electroplating solution can be gathered on the surface of the battery piece and reduced into a plating layer with a preset shape, so that the copper grid line is formed.

The copper plating process in the prior art can be divided into rack plating and horizontal plating according to the transmission mode of the battery piece in the plating tank. In the horizontal plating method, the battery plate is horizontally transferred on the transfer device, and there is a great difficulty in connecting the power negative electrode of the plating apparatus to the moving battery plate. At present, a battery piece is connected and conducts electricity in a mode of abutting a conductive probe in horizontal electroplating, but the contact area between the tip of the conductive probe and the battery piece is small, the problem of disconnection caused by unstable contact is easy to occur, and the electroplating effect is affected.

In the hanging plating method, a common practice is to clamp the battery piece by adopting an electroplating clamp with a conductive structure, and meanwhile, the electroplating clamp transmits the battery piece according to a set route, and the electroplating clamp plays roles of fixing, transmitting and conducting. In the hanging plating method, the clamping force of the electroplating clamp needs to be strictly and accurately controlled, the clamping force is too small to cause unstable clamping and poor contact, fragments are easily caused by too large clamping force, and the fragments are easily caused by factors such as uneven clamping force or vibration of equipment, so that the electroplating effect is seriously influenced.

In addition, in a continuous electroplating production line, when the battery piece enters an electroplating tank filled with electroplating liquid, a power supply negative electrode needs to be connected to the moving battery piece in time, so that the electroplating time is prevented from being influenced; when the battery piece leaves the electroplating bath, the negative electrode of the power supply needs to be disconnected with the battery piece in time, so that the process operation after electroplating is prevented from being influenced. The function of connecting and separating the battery piece in time can not be realized by the conventional electroplating equipment, and many equipment also need to rely on manual work to feed and discharge the electroplating clamp and the like, thereby being time-consuming, labor-consuming and low in efficiency.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides solar cell electroplating equipment which is high in automation degree and contributes to improving electroplating efficiency.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the solar cell electroplating equipment comprises a clamping assembly and a transmission mechanism for transmitting the clamping assembly along a transmission direction, wherein the transmission mechanism is provided with a first position and a second position which are arranged at intervals along the transmission direction; the clamping assemblies are provided with a plurality of groups which are arranged at intervals along the transmission direction, each group of clamping assemblies comprises a first clamping part and a second clamping part, at least one part of the first clamping part and the second clamping part is made of conductive materials, each group of clamping assemblies is provided with a closed state and an open state, and when the clamping assemblies are in the closed state, the first clamping part and the second clamping part are abutted against each other; when the clamping assembly is in an open state, the first clamping part and the second clamping part are arranged at intervals; the electroplating apparatus further includes an opening and closing mechanism for urging the clamping assembly from the open state to the closed state at the first position and for urging the clamping assembly from the closed state to the open state at the second position.

In some embodiments, the first position is spaced apart from the second position in a horizontal direction, and the clamping assembly is transferred from the first position to the second position in a horizontal direction and in a straight line; the clamp assembly remains in a closed state during transfer of the clamp assembly from the first position to the second position.

In some embodiments, the transfer mechanism is configured to cyclically transfer the plurality of sets of clamping assemblies between the first position and the second position, the transfer direction being a unidirectional closed loop.

In some embodiments, when the clamping assembly is in the open state, a clamping channel extending in the transport direction is formed between the first clamping portion and the second clamping portion.

In some embodiments, each set of the clamping assemblies includes a first clamping arm having a first control end and a second clamping arm having a first clamping portion disposed thereon; the second clamping arm is provided with a second control end part, and the second clamping part is arranged on the second clamping arm; when the clamping assembly is in a closed state, a control end gap is arranged between the first control end part and the second control end part, and the width of the control end gap is H along the direction perpendicular to the conveying direction; when the clamping assembly is switched from the closed state to the open state, the first control end part and the second control end part are mutually far away along the direction perpendicular to the transmission direction; when the clamping assembly is in an open state, the width of the control end gap is greater than H.

In some embodiments, each set of the clamping assemblies includes a first clamping arm having a first control end and a second clamping arm having a first clamping portion disposed thereon; the second clamping arm is provided with a second control end part, and the second clamping part is arranged on the second clamping arm; when the clamping assembly is in a closed state, a control end gap is arranged between the first control end part and the second control end part, and the width of the control end gap is h along the direction perpendicular to the conveying direction; the first control end part and the second control end part are mutually close along the direction perpendicular to the conveying direction in the process of switching the clamping assembly from the closed state to the open state; when the clamping assembly is in an open state, the width of the control end gap is smaller than h.

In some embodiments, the first control end portion and the first clamping portion are disposed at different end portions of the first clamping arm in the longitudinal extension direction, and the second control end portion and the second clamping portion are disposed at different end portions of the second clamping arm in the longitudinal extension direction.

In some embodiments, the first control end is on the same side of the second clamping arm as the first clamping portion in the direction perpendicular to the transport direction.

In some embodiments, the first control end and the first clamping portion are disposed on different sides of the second clamping arm in the direction perpendicular to the conveying direction.

In some embodiments, each set of the clamping assemblies includes a resilient member for providing a force required to bring the first clamping portion and the second clamping portion closer together.

In some embodiments, each set of the clamping assemblies includes a resilient member for providing a force required to move the first clamping portion and the second clamping portion away from each other.

In some embodiments, each group of clamping assemblies includes a first magnetic member and a second magnetic member, the first magnetic member is fixedly disposed at the first control end, the second magnetic member is fixedly disposed at the second control end, and the first magnetic member and the second magnetic member can be close to each other by magnetic attraction.

In some embodiments, in each group of the clamping assemblies, the first clamping portion and the second clamping portion are respectively provided with a protrusion, the two protrusions are oppositely arranged along the direction perpendicular to the transmission direction, and when the clamping assemblies are in the closed state, the two protrusions are abutted against each other.

In some embodiments, in each group of the clamping assemblies, one of the first clamping portion and the second clamping portion is provided with a groove, the other clamping portion is fixedly provided with a protrusion, the groove and the protrusion are oppositely arranged along the direction perpendicular to the transmission direction, and when the clamping assemblies are in a closed state, the protrusion is matched and clamped in the groove.

In some embodiments, the transfer mechanism includes a transfer member capable of moving in the transfer direction and transferring the plurality of sets of clamping assemblies, the second control end of each set of clamping assemblies being fixedly connected to the transfer member, the opening and closing mechanism for urging the first control end of the clamping assembly relatively close to the corresponding second control end at the first position, and for urging the first control end of the clamping assembly relatively far from the corresponding second control end at the second position.

In some embodiments, the transfer mechanism includes a transfer member movable in the transfer direction and transferring the plurality of sets of clamping assemblies, the second control end of each set of clamping assemblies being fixedly connected to the transfer member; the opening and closing mechanism is for urging the first control end of the clamping assembly relatively away from the corresponding second control end at the first position and for urging the first control end of the clamping assembly relatively close to the corresponding second control end at the second position.

In some embodiments, the transfer mechanism includes a transfer member movable in the transfer direction and transferring the plurality of sets of clamping assemblies, the second control end of each set of clamping assemblies being fixedly connected to the transfer member; the opening and closing mechanism comprises an opening and closing piece, the opening and closing piece is provided with a first guide section for driving the clamping assembly to be converted from a closed state to an open state, the first guide section extends along the transmission direction and is provided with a leading-in end and a leading-out end which are respectively arranged at two ends with different transmission directions, and the first guide section gradually and obliquely extends from the leading-in end to the leading-out end; when the first guide section drives the clamping assembly to switch from the closed state to the open state, the first guide section is positioned in the control end gap of the clamping assembly along the direction perpendicular to the transmission direction; when the first control end is matched with the leading-in end, the width of the control end gap is not more than H; when the first control end is matched with the leading-out end, the width of the control end gap is larger than H; when the clamping assembly is transmitted from the leading-in end to the leading-out end, the first control end part abuts against the first guide section and moves along the first guide section; along the transmission direction: the lead-out end is located at the first position or the first guide section is located at the second position.

In some embodiments, the shutter further has a second guide section that interfaces with the lead-in end and extends in a direction opposite the transport direction, the width of the control end gap being no greater than H in the direction perpendicular to the transport direction when the first control end mates with the second guide section.

In some embodiments, the shutter further has a third guide section that interfaces with the lead-out end and extends in the transport direction, the width of the control end gap being greater than H in the direction perpendicular to the transport direction when the first control end mates with the third guide section; the trailing end of the third guide section is located at the first position along the conveying direction.

In some embodiments, the opening and closing members have two groups disposed at intervals along the conveying direction, the two groups of opening and closing members are a first opening and closing member and a second opening and closing member respectively, at least part of the first opening and closing member is located at the first position, and the first guiding section of the second opening and closing member is located at the second position.

In some embodiments, along the direction perpendicular to the conveying direction, two sides of the conveying member are respectively and fixedly connected with the multiple groups of clamping assemblies, the opening and closing member is provided with two groups of clamping assemblies respectively arranged on two sides of the conveying member, and the opening and closing member on each side is matched with the multiple groups of clamping assemblies on the same side.

In some embodiments, when the transmission assembly is aligned with the opening and closing member, the first control end portion of the clamping assembly, the opening and closing member, and the second control end portion of the clamping assembly on each side are sequentially disposed from inside to outside along the direction perpendicular to the transmission direction.

In some embodiments, the transfer mechanism includes a transfer member movable in the transfer direction and transferring the plurality of sets of clamping assemblies, the second control end of each set of clamping assemblies being fixedly connected to the transfer member; the opening and closing mechanism comprises an opening and closing piece, the opening and closing piece is provided with a second guide section, a first guide section and a third guide section which extend along the transmission direction and are sequentially connected, and the direction perpendicular to the transmission direction is as follows: the second guide section, the first guide section and the third guide section can be arranged in the control end gap of the clamping assembly in a penetrating manner; when the first control end is mated with the second guide section, the width of the control end gap is no greater than H; when the first control end is matched with the third guide section, the width of the control end gap is larger than H; the first guide section smoothly transitions between the second guide section and the third guide section; the first control end abuts against and moves along the opening and closing member during the transfer of the clamping assembly from the second guide section to the third guide section.

In some embodiments, the second guide section and the first guide section each extend in a horizontal direction, and an end of the third guide section remote from the first guide section extends in a horizontal direction.

In some embodiments, the transport member has a curved extension extending along a curve during movement of the transport member in the transport direction, and a portion of the third guide section is parallel to and extends along the curve extension.

In some embodiments, the transmission mechanism further includes a first driving wheel and a second driving wheel, the first driving wheel and the second driving wheel are disposed at intervals along the transmission direction, the first driving wheel can be disposed in a relatively rotating manner around a first rotation center line, the second driving wheel can be disposed in a relatively rotating manner around a second rotation center line, the first rotation center line and the second rotation center line are parallel to each other, the transmission member is an annular belt extending along the transmission direction, the transmission member is wound and tensioned on the first driving wheel and the second driving wheel at the same time, and at least part of the opening and closing member extends along the circumferential direction of the first driving wheel and/or the second driving wheel.

In some embodiments, the first rotation center line and the second rotation center line extend in a horizontal direction, the first position is located below the first driving wheel, the second position is located below the second driving wheel, and the transmission member is transmitted from the first position to the second position in the horizontal direction.

In some embodiments, the opening and closing member comprises a first opening and closing member and a second opening and closing member, wherein: the second guide section and the first guide section are both positioned above the first driving wheel and extend along the horizontal direction, part of the third guide section extends along the arc line from top to bottom along the circumferential direction of the first driving wheel, the lower end part of the third guide section extends along the horizontal direction, and the lower end part of the third guide section is positioned at the first position; in the second shutter: the second guide section and the first guide section are both positioned below the second driving wheel and extend along the horizontal direction, part of the third guide section extends along the arc line from bottom to top along the circumferential direction of the second driving wheel, the upper end part of the third guide section extends along the horizontal direction, and the first guide section is positioned at the second position.

In some embodiments, the transfer mechanism includes a transfer member movable in the transfer direction and transferring the plurality of sets of clamping assemblies, the second control end of each set of clamping assemblies being fixedly connected to the transfer member; the opening and closing mechanism comprises an opening and closing piece, the opening and closing piece and the transmission piece are arranged at intervals along the direction perpendicular to the transmission direction, a guide gap is formed between the opening and closing piece and the transmission piece, the opening and closing piece is provided with a first guide section for driving the clamping assembly to be converted from an open state to a closed state, the first guide section extends along the transmission direction and is provided with a leading-in end and a leading-out end which are respectively arranged at two ends with different transmission directions, the first guide section gradually inclines and extends from the leading-in end to the leading-out end, and the first guide section is positioned at the first position along the transmission direction; the first control end is positioned in the guide gap along the direction perpendicular to the conveying direction in the process that the first guide section drives the clamping assembly to switch from the open state to the closed state; when the first control end is matched with the leading-in end, the width of the control end gap is larger than H; when the first control end portion is matched with the leading-out end, the width of the gap between the control ends is not larger than H, and when the clamping assembly is transmitted from the leading-in end to the leading-out end, the first control end portion abuts against the first guide section and moves along the first guide section.

In some embodiments, the shutter further has a second guide section that interfaces with the lead-out end and extends in the transport direction, the first control end being located in the guide gap when the first control end is mated with the second guide section, the width of the control end gap being no greater than H in the direction perpendicular to the transport direction.

In some embodiments, the second guide section extends from the first position to the second position, and the first control end is always located in the guide gap and abuts against the second guide section during the transfer of the clamping assembly from the first position to the second position.

In some embodiments, the opening and closing member further has a fourth guide section, the first guide section, the second guide section, and the fourth guide section are connected in sequence along the conveying direction, and the fourth guide section is located at the second position; when the first control end portion is matched with the fourth guide section and moves along the conveying direction, the first control end portion is located in the guide gap, and the width of the control end gap is gradually increased along the direction perpendicular to the conveying direction.

In some embodiments, the transfer mechanism includes a transfer member movable in the transfer direction and transferring the clamping assembly, the transfer member having a horizontally extending section extending in a horizontal direction during movement of the transfer member in the transfer direction, and a support member extending in a direction parallel to the horizontally extending section; each group of clamping assemblies comprises a second clamping arm and a guide piece, the guide piece is connected with the second clamping arm, the second clamping arm is fixedly connected with the transmission piece, and when the clamping assemblies are in transmission along the horizontal extension section, the guide piece can be connected with the support piece in a relative movement manner along the extension direction of the support piece.

In some embodiments, the transport member has a plurality of discrete horizontally extending segments during movement of the transport member in the transport direction, and the support member has a plurality of sets corresponding to the plurality of horizontally extending segments.

In some embodiments, the support member and the second clamping arm are disposed on different sides of the transmission member in the up-down direction.

In some embodiments, the guide member includes a roller, a guide groove is formed in a circumferential direction of the roller, the roller can relatively rotate around a self axis and is connected with the second clamping arm, when the clamping assembly is transported along the horizontal extension section, the axis of the roller extends along an up-down direction, and at least part of the support member is clamped in the guide groove and is in rolling fit with the guide groove.

In some embodiments, each set of the clamping assemblies comprises a first clamping arm, a second clamping arm, a first connecting rod and a second connecting rod, wherein one end of the first connecting rod is rotatably connected with the first clamping arm, and the other end of the first connecting rod is rotatably connected with the second clamping arm; one end part of the second connecting rod is rotationally connected with the first clamping arm, and the other end part of the second connecting rod is rotationally connected with the second clamping arm; the first clamping part is fixedly arranged on the second connecting rod, and the second clamping part is fixedly arranged on the second clamping arm.

In some embodiments, the extending direction of the first clamping arm and the extending direction of the second clamping arm are parallel to each other when the clamping assembly is in the closed state.

In some embodiments, the first connecting rod is parallel to the rotation center line of the first clamping arm, the first connecting rod is parallel to the rotation center line of the second clamping arm, the second connecting rod is parallel to the rotation center line of the first clamping arm, and the second connecting rod is parallel to the rotation center line of the second clamping arm.

In some embodiments, the first link and the first clamp arm extend along a rotational centerline of the first link: the first connecting rod is provided with two groups which are respectively arranged at two different sides of the first clamping arm, and the second connecting rod is provided with two groups which are respectively arranged at two different sides of the first clamping arm.

In some embodiments, the opening and closing mechanism includes a driving device, the driving device has a plurality of groups, each group of clamping assemblies is connected with a group of driving devices, and each group of driving devices is used for driving the first clamping portion and the second clamping portion of the corresponding clamping assembly to be close to or far away from each other.

In some embodiments, the transmission mechanism includes a first driving wheel, a second driving wheel and a transmission member, where the first driving wheel and the second driving wheel are arranged at intervals along a transmission direction, the first driving wheel can be arranged around a first rotation center line in a relatively rotating manner, the second driving wheel can be arranged around a second rotation center line in a relatively rotating manner, the first rotation center line and the second rotation center line are parallel to each other, the transmission member is an annular belt extending along the transmission direction, the transmission member is simultaneously tensioned and wound on the first driving wheel and the second driving wheel, and each group of clamping assemblies is fixedly connected with the transmission member.

Due to the application of the technical scheme, the solar cell electroplating equipment provided by the invention can automatically clamp the cell at the first position and release the cell at the second position by arranging the opening and closing mechanism, so that manual intervention is not needed, manpower is greatly saved, and the electroplating efficiency of the solar cell is obviously improved. When the clamping assembly is in a normally closed structure (in a closed state under the action of no external force), the opening and closing mechanism is mainly used for converting the clamping assembly into an open state at the first position and the second position, so that the battery piece or a conductive structure connected with the battery piece can enter and exit between the first clamping part and the second clamping part; when the clamping assembly is in a normally open structure (in an open state under the action of no external force), the opening and closing mechanism is mainly used for enabling the clamping assembly to be always kept in a closed state between the first position and the second position.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly described.

FIG. 1 is a schematic front view of a solar cell electroplating apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view showing the partitioning of the plating apparatus in example 1;

FIG. 3 is a schematic partial perspective view of the plating apparatus of example 1;

FIG. 4 is an enlarged schematic view of FIG. 3 at A;

FIG. 5 is an enlarged schematic view of FIG. 3 at B;

fig. 6 is a schematic perspective view of the clamping assembly in the opened state in embodiment 1;

FIG. 7 is a schematic side view of the clamp assembly of example 1 in an open state;

FIG. 8 is a schematic perspective view of the clamping assembly of embodiment 1 in a closed state;

FIG. 9 is a schematic side view of the clamping assembly of example 1 in a closed state;

FIG. 10 is a schematic front view of the plating apparatus of example 2;

FIG. 11 is a schematic top view of the electroplating apparatus of example 2;

FIG. 12 is a schematic side view of a clamping assembly of example 2;

FIG. 13 is a schematic front view of the plating apparatus of example 3;

FIG. 14 is a schematic top view of the plating apparatus of example 3;

FIG. 15 is a schematic side view of the clamping assembly of example 3;

FIG. 16 is a schematic side view of the clamp assembly of example 4 in a closed state;

FIG. 17 is a schematic side view of the clamp assembly of example 4 in an open state;

FIG. 18 is a schematic top view of the plating apparatus of example 4;

FIG. 19 is a schematic side view of the clamp assembly of example 5 in an open state;

FIG. 20 is a schematic side view of the clamping assembly of example 5 in a closed state;

FIG. 21 is a schematic top view of the electroplating apparatus of example 5;

FIG. 22 is a schematic side view of the clamping assembly of example 6;

wherein: 100. a clamping assembly; 101. a clamping channel; 102. controlling the end gap; 110. a first clamping arm; 111. a first control end; 112. a first connection end; 120. a second clamping arm; 121. a second control end; 122. a second connection end; 130. a first clamping part; 131. a first protrusion; 132. a first groove; 140. a second clamping portion; 141. a second protrusion; 150. a first link; 160. a second link; 170. a guide member; 171. a guide groove; 181. a tension spring; 182. a pressure spring; 183. a first magnetic member; 184. a second magnetic member;

200. A transmission mechanism; 200a, a first position; 200b, a second position; 210. a first driving wheel; 220. a second driving wheel; 230. a transmission member; 231. a fixing member; 240. a bracket; 250. a support;

310. an opening and closing member; 310a, a first opening and closing member; 310b, a second shutter; 311. a first guide section; 311a, a leading-in end; 311b, a derivation end; 312. a second guide section; 313. a third guide section; 313a, tail end; 314. a fourth guide section; 320. a driving device; 301. a guide gap;

400. plating bath; 400a, liquid level; 500. a conveying roller;

1. a battery sheet; 11. a conductive member; 1001. a first rotation centerline; 1002. a second rotation center line; 1003. an axial lead; 1004. a fourth rotation center line; 1005. a fifth rotation center line; 1006. a sixth rotation center line; 1007. a seventh rotation center line; x, a first direction; y, second direction; z, third direction; s1, a first clamping opening area; s2, clamping areas; s3, a second clamping opening area; s4, a reflow area.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature. It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Example 1

Referring to fig. 1 to 3, the present embodiment provides a solar cell electroplating apparatus for sequentially performing electroplating treatment on a plurality of horizontally placed and horizontally transferred cells 1, in particular, electroplating copper grid lines on the surfaces of the cells 1. The plating apparatus includes a clamping assembly 100, a transfer mechanism 200, an opening and closing mechanism, a plating tank 400, a transfer roller 500, and the like.

Referring to fig. 1, in this embodiment, a plurality of conductive members 11 are fixedly connected to the surface of each battery plate 1, and the plurality of conductive members 11 are arranged at intervals on the surface of the battery plate 1. Each conductive element 11 is made of a conductive material, and alternative shapes of the conductive element 11 include, but are not limited to, a strip shape, a wire shape, a sheet shape, a strip shape, a rod shape, a needle shape, and the like, and the specific material of the conductive element 11 may be flexible and pliable, or rigid and not easy to deform. The conductive member 11, which is of any shape and material, has one end portion fixedly connected to the battery plate 1 and the other end portion extending upward from the battery plate 1. In this way, one end of each conductive member 11 can be connected to the region to be plated on the battery sheet 1, and the other end is conveniently clamped by the clamping assembly 100 above the battery sheet 1, thereby achieving the effect of a conductive medium. In this embodiment, the conductive member 11 and the battery piece 1 may be specifically connected by means of conductive adhesive, and the two may be electrically connected (hereinafter referred to as "electrical connection") and preferably connected in a detachable manner. The conductive member 11 is fixed to the battery piece 1 before the battery piece 1 enters the plating tank 400, and can be removed after the plating of the battery piece 1 is completed. It should be noted that, in order to avoid that the conductive member 11 and the battery piece 1 are firmly electroplated together, which results in difficult detachment, in this embodiment, an electroplating-proof material is further coated on one end portion of the conductive member 11 connected to the battery piece 1, and the electroplating-proof material should be coated outside the connection point (or connection area) between the conductive member 11 and the battery piece 1, so that the electrical connection between the conductive member 11 and the battery piece 1 cannot be affected. Further, the plating apparatus of the present embodiment may also support double-sided plating of the battery pieces 1, in which case, a plurality of conductive members 11 are connected to both upper and lower surfaces of each battery piece 1 so that the upper and lower surfaces thereof can form a plating circuit with a plating anode of the plating apparatus, respectively. When the upper and lower surfaces of the battery plate 1 are connected with the conductive members 11, the conductive members 11 connected to the lower surface extend from bottom to top after being bent from below, and can be clamped by the clamping assembly 100 above the battery plate 1.

Referring to fig. 1 to 3, in the present embodiment, the plating tank 400 contains a plating solution, and a plurality of battery pieces 1 are sequentially transferred in the horizontal direction in the plating tank 400 and in the plating tank. In the present embodiment, the transfer direction of the battery sheet 1 is defined as a first direction X, the horizontal direction perpendicular to the first direction X is defined as a second direction Y, and the vertical direction is defined as a third direction Z, so that an XYZ three-dimensional coordinate system is constructed in order to describe the specific structure of the plating apparatus. In this embodiment, the plurality of conductive members 11 connected to each of the battery pieces 1 are arranged at intervals along the first direction X during the conveyance of each of the battery pieces in the plating tank 400.

Referring to fig. 1, in the present embodiment, the transfer rollers 500 have a plurality of spaced apart in the first direction X, each transfer roller 500 is relatively rotatably disposed in the plating tank 400 about its own axis, and the axis of each transfer roller 500 extends in the second direction Y, so that the plurality of transfer rollers 500 can successively transfer the plurality of battery pieces 1 in the first direction X. In order to reduce the influence of the transfer roller 500 on the plating process, the transfer roller 500 is preferably made of an insulating material such as plastic. In other embodiments, the conveying roller 500 may be replaced by a conventional conveying device such as a roller or a conveying belt, and a conveying device with a gap for facilitating the circulation of the plating solution is preferably used to enhance the plating effect on the lower surface of the battery sheet 1.

In this embodiment, an electroplating anode is disposed in the electroplating tank 400, and the electroplating anode can be connected to the positive electrode of a power source (not shown). In this embodiment, the upper and lower sides of the battery piece 1 are respectively provided with an electroplating anode for double-sided electroplating of the battery piece 1. Wherein the plating anode located at the lower side may be disposed between the gaps of the plurality of transfer rollers 500 to be closer to the lower surface of the battery sheet 1. Referring to fig. 1, when the electroplating apparatus is in normal operation, all the electroplating anodes, the conveying rollers 500 and the battery pieces 1 conveyed by the same are immersed below the liquid level 400a of the electroplating liquid, the liquid level 400a above the battery pieces 1 is shallower, so that only the lower end portions of the conductive pieces 11 are immersed in the electroplating liquid, and the area of the conductive pieces 11 and the battery pieces 1 to be electroplated together is further reduced. In this embodiment, the upper plating anode and the upper surface of the battery plate 1 are spaced apart and disposed opposite to each other in the third direction Z in the plating solution, and the lower plating anode and the lower surface of the battery plate 1 are spaced apart and disposed opposite to each other in the third direction Z in the plating solution. When the battery piece 1 is connected with the negative electrode of the power supply, the upper surface and the lower surface of the battery piece 1 respectively form an electroplating cathode, and can form a closed loop with a corresponding electroplating anode to carry out electroplating.

In other embodiments, the plating apparatus may be used for single-sided plating of only the upper or lower surfaces of the battery pieces 1, where only one side of the battery piece 1 is connected with the conductive member 11, and the plating anode is disposed in the plating tank 400 only on the corresponding side of each battery piece 1. The single-sided plating or double-sided plating of the battery sheet 1 has no influence on the core technical solution of the present invention, and therefore, the description is not differentiated in this embodiment.

Referring to fig. 1, in the present embodiment, all the clamping assembly 100, the transmission mechanism 200 and the opening and closing mechanism are disposed above the plating tank 400 and are not in direct contact with the plating solution, so as to prevent the clamping assembly 100 or other components and the conductive member 11 from being electroplated together, which results in that the clamping assembly 100 cannot release the conductive member 11 and thus cannot break the electroplating circuit, thereby affecting the subsequent process of the battery piece 1. In this embodiment, the conveying mechanism 200 is used for conveying the clamping assemblies 100 along the conveying direction, and the clamping assemblies 100 have multiple groups arranged at intervals along the conveying direction. It should be noted that, the clamping assemblies 100 are equidistantly arranged along the entire transmission direction, and the number of the clamping assemblies may be up to tens or hundreds, but for clarity and brevity of the drawing, the clamping assemblies 100 are enlarged and simplified in fig. 1 and fig. 2, and most of the clamping assemblies 100 are omitted in fig. 3 to fig. 5, and only several groups of clamping assemblies 100 at critical positions are illustrated, and those skilled in the art should understand that the number of the clamping assemblies 100 in an actual electroplating apparatus may be far greater than that illustrated.

Referring to fig. 1, in the present embodiment, there are a first position 200a and a second position 200b disposed at intervals along a transmission direction, and the transmission mechanism 200 is used for circularly transmitting the plurality of groups of clamping assemblies 100 between the first position 200a and the second position 200b, wherein the transmission direction is a unidirectional closed loop. Further, the first position 200a and the second position 200b are spaced apart in the horizontal direction, and each group of clamping assemblies 100 is transferred from the first position 200a to the second position 200b in the horizontal direction and in a straight line, in particular in the first direction X. In this embodiment, the first position 200a or the second position 200b is not a concept of a point in space, but a small range extending in the transmission direction. In fig. 1 and 3, the "transfer direction" is shown by solid arrows around the periphery of the transfer mechanism 200. It can be seen that the transfer direction of the clamping assembly 100 in this embodiment approximates a rounded rectangle in the vertical plane, the first position 200a is located substantially above the inlet of the plating cell 400, and the second position 200b is located substantially above the outlet of the plating cell 400. In the present embodiment, unless otherwise specified, the "conveyance direction" refers to the conveyance direction of each set of the clamping assemblies 100, and the "direction perpendicular to the conveyance direction" referred to herein corresponds to the second direction Y.

Referring to fig. 1 to 3, the transmission mechanism 200 in the present embodiment includes a first transmission wheel 210, a second transmission wheel 220, a transmission member 230, a bracket 240, and a support member 250. Wherein, the positions of the bracket 240 and the plating tank 400 are relatively fixed, and the bracket 240 forms a base of the whole transmission mechanism 200. The first driving wheel 210 and the second driving wheel 220 are disposed at intervals along the transmission direction, the first driving wheel 210 is relatively rotatably disposed around a first rotation center line 1001, the second driving wheel 220 is relatively rotatably disposed around a second rotation center line 1002, and the first rotation center line 1001 and the second rotation center line 1002 are parallel to each other. The transmission member 230 is an endless belt extending along a transmission direction, the transmission member 230 is wound around and tensioned on the first driving wheel 210 and the second driving wheel 220, the transmission member 230 can rotate synchronously with the rotation of the first driving wheel 210 and the second driving wheel 220, and the extending direction of the transmission member 230 is the transmission direction, so that the transmission member 230 can move along the transmission direction and transmit the clamping assembly 100.

In this embodiment, the transmission mechanism 200 further includes a driving motor (not shown in the drawings) for driving the first driving wheel 210 or the second driving wheel 220 to rotate. The first driving wheel 210 and the second driving wheel 220 are respectively rotatably disposed on the bracket 240, and the first rotation center line 1001 and the second rotation center line 1002 respectively extend in the horizontal direction, specifically respectively extend in the second direction Y. The first driving wheel 210 and the second driving wheel 220 are spaced apart in the first direction X, and both are substantially the same in size and height, so that the transmission members 230 moving to the lower or upper side extend in the horizontal direction. The first position 200a is located below the first driving wheel 210, the second position 200b is located below the second driving wheel 220, and the transmission member 230 is transmitted from the first position 200a to the second position 200b along the horizontal direction (specifically, the first direction X).

Referring to fig. 1 to 3, and as can be seen from the foregoing, in the present embodiment, the conveying member 230 has a horizontally extending section extending in the horizontal direction and a curvedly extending section extending in the curvedly direction during the movement of the conveying member 230 in the conveying direction, wherein the horizontally extending section has discontinuous sections. Specifically, the horizontal extension section of the transmission member 230 has two sections disposed on two opposite sides of the third direction Z, the curved extension section has two sections disposed on two opposite sides of the first direction X, the two sections of the horizontal extension section respectively extend along the first direction X in a straight line, and the two sections of the curved extension section are respectively semicircular arcs. In this embodiment, the lower horizontal extension is located right above the plating tank 400 in the space and parallel to the conveying direction of the battery sheet 1.

In this embodiment, at least part of the transmission member 230 is made of a conductive material, so as to be electrically connected to the negative electrode of the power source and each clamping assembly 100, respectively, and form a part of the electroplating circuit. For example, in some embodiments, the transmission 230 may be a metal strip made of a metal or alloy material such as iron, copper, aluminum, or stainless steel. In other embodiments, the conductive strip 13 may be a belt provided with conductive areas, or a belt covered with a metal layer. In the embodiments of the present invention, whether a part of the element is a conductor or an insulator may not be described, and those skilled in the art should determine whether the part of the element is a conductor or an insulator according to the application scenario.

Referring to fig. 3 to 5, in the present embodiment, the extending direction of the supporting member 250 is parallel to the horizontal extending section of the conveying member 230, and the supporting member 250 has multiple groups corresponding to multiple sections of the horizontal extending section, specifically, has two groups of supporting members 250. The support 250 is made of a rigid material and is not easily deformed by bending. Along the third direction Z, the two sets of support members 250 are disposed on the inner side of the annular transmission member 230, and the support members 250 are fixedly connected to the support 240 or other support structure, such as a frame (not shown).

Referring to fig. 6 to 9, in the present embodiment, each set of clamping assemblies 100 includes a first clamping portion 130 and a second clamping portion 140, and a portion of at least one of the first clamping portion 130 and the second clamping portion 140 is made of a conductive material, so as to be electrically connected to the conductive member 11. Each group of clamping assemblies 100 has a closed state and an open state, and when the clamping assemblies 100 are in the closed state, the first clamping portion 130 and the second clamping portion 140 are abutted against each other; when the clamping assembly 100 is in the open state, the first clamping portion 130 is spaced apart from the second clamping portion 140. Referring to fig. 1-5, the opening and closing mechanism is configured to actuate the clamp assembly 100 from the open state to the closed state at a first position 200a and to actuate the clamp assembly 100 from the closed state to the open state at a second position 200 b; the clamping assembly 100 remains in the closed state during the transfer of the clamping assembly 100 from the first position 200a to the second position 200 b.

Referring to fig. 2, in this embodiment, the conveying mechanism 200 is divided into a first open clamping area S1, a clamping area S2, a second open clamping area S3, and a reflow area S4 in order along the conveying direction. The first driving wheel 210 and the first position 200a are located in the first clamping opening area S1, the lower supporting member 250 is located in the clamping area S2, the second driving wheel 220 and the second position 200b are located in the second clamping opening area S3, and the upper supporting member 250 is located in the reflow area S4. In the process of circularly conveying the plurality of groups of clamping assemblies 100 along the conveying direction by the conveying mechanism 200, each group of clamping assemblies 100 can sequentially pass through the first clamping opening area S1, the clamping area S2, the second clamping opening area S3 and the reflow area S4 which are connected end to end along the conveying direction. In this embodiment, the opening and closing mechanism includes an opening and closing member 310, where the opening and closing member 310 includes two groups of opening and closing members respectively disposed at the first position 200a and the second position 200b, namely, a first opening and closing member 310a is disposed in a first opening and clamping area S1, and a second opening and closing member 310b is disposed in a second opening and clamping area S3.

In this embodiment, each clamping assembly 100 is used to clamp a plurality of conductive members 11 connected to one battery piece 1. When the clamping assembly 100 clamps the conductive member 11, the clamping assembly 100 can be electrically connected with the corresponding conductive member 11 and the battery piece 1, that is, the power source negative electrode, the transmission member 230, the clamping assembly 100, the conductive member 11 and the battery piece 1 are electrically connected in sequence, so as to realize the conduction of the electroplating circuit. In order to improve the stability of clamping and conduction of the clamping assembly 100, the conveying speed of the conveying member 230 should be consistent with the conveying speed of the battery pieces 1, so that after the battery pieces 1 are clamped by the clamping assembly 100, each battery piece 1 and the corresponding clamping assembly 100 can synchronously move and relatively stand still until the clamping assembly 100 releases the conductive member 11.

It should be noted that, in the present embodiment, the position where each clamping assembly 100 gradually (or quickly) closes and starts clamping the conductive member 11 is defined as a first position 200a, the position where each clamping assembly 100 gradually (or quickly) opens and releases the conductive member 11 is defined as a second position 200b, and there is no direct correspondence between the first position 200a, the second position 200b and the plating tank 400. In some embodiments, the first position 200a may be located before the inlet of the plating tank 400, i.e., the battery plate 1 is clamped by the clamping assembly 100 before entering the plating tank 400; in other embodiments, the first position 200a is located just above the inlet of the plating tank 400, i.e. the battery plate 1 is simultaneously clamped by the clamping assembly 100 during the process of entering the plating tank 400; in still other embodiments, the first position 200a is located after the inlet of the plating tank 400, i.e. the battery plate 1 enters the plating tank 400 and is transported a certain distance before being clamped by the clamping assembly 100. Likewise, the second position 200b may optionally be disposed directly above, front above, or back above the outlet of the plating cell 400, corresponding to disengagement of the clamping assembly 100 during or before exiting the plating cell 400, or after exiting the plating cell 400, respectively, of the battery plate 1 from the plating cell 400. In particular, when a post-treatment device (not shown in the drawings) such as a washing and drying tank is further connected after the plating tank 400, the second position 200b may be provided before the inlet of these post-treatment devices.

Referring to fig. 1 to 3, the basic operation principle of the plating apparatus in this embodiment is as follows:

in the electroplating process, the plurality of transfer rollers 500 continuously and uniformly transfer the plurality of horizontally placed battery pieces 1 along the first direction X, and at the same time, the transfer member 230 continuously, uniformly and circularly transfers the plurality of clamping assemblies 100 along the annular transfer direction, and the interval distance between every two adjacent clamping assemblies 100 is approximately equal to the interval distance between every two adjacent battery pieces 1.

In the above process, each time one battery plate 1 moves below the first position 200a, there is just one set of clamping assemblies 100 moving to the first position 200a, and the clamping assemblies 100 undergo at least one transition from the open state to the closed state at the first position 200a, so that the conductive members 11 on the corresponding battery plate 1 can be clamped at the first position 200 a. In this embodiment, each clamping assembly 100 also needs to undergo a transition from the closed state to the open state in the first clamping opening region S1, specifically before moving to the first position 200 a.

Then, after the clamping assembly 100 enters the clamping area S2, the clamping assembly 100 is kept in a closed state and the conductive member 11 on the corresponding battery piece 1 is always clamped, and the clamping assembly 100 and the battery piece 1 move at the same speed, and in this process, the battery piece 1 is subjected to electroplating treatment in the electroplating bath 400.

Then, after the above-described clamping assembly 100 enters the second clamping opening region S3, a process of switching from the closed state to the open state is performed, so that the conductive member 11 on the corresponding battery cell 1 can be released at the second position 200 b. The clamping assembly 100 still needs to maintain synchronous movement with the conductive member 11 before the clamping assembly 100 completely releases the conductive member 11 at the second position 200 b. In this embodiment, each clamping assembly 100 remains in the open state in the second clamping open region S2, particularly after movement to the second position 200 b.

Thereafter, the released battery sheet 1 continues to be transported in the first direction X, and enters the subsequent process. The clamping assembly 100 enters the reflow region S4, and is reversely transported in the reflow region S4 along the first direction X and returns to the first clamping opening region S1 to enter the next cycle. In this embodiment, the clamping assembly 100 remains closed within the recirculation zone S4.

In this embodiment, the plurality of clamping assemblies 100 can be recycled, which improves the recycling rate of the components on the electroplating apparatus and reduces the manufacturing cost of the electroplating apparatus.

Fig. 6 to 9 show a specific structure of each set of the clamping assemblies 100 in the present embodiment. In this embodiment, each set of clamping assemblies 100 further includes a first clamping arm 110, a second clamping arm 120, a first link 150, and a second link 160. One end of the first connecting rod 150 is rotatably connected with the first clamping arm 110, and the other end is rotatably connected with the second clamping arm 120; one end of the second link 160 is rotatably connected to the first clamp arm 110, and the other end is rotatably connected to the second clamp arm 120, so that the first clamp arm 110, the second clamp arm 120, the first link 150, and the second link 160 constitute a four-bar linkage mechanism, and can be operated in a linked manner. In this embodiment, the first clamping portion 130 is disposed on the first clamping arm 110, specifically, is fixedly disposed on the second connecting rod 160; the second clamping portion 140 is disposed on the second clamping arm 120.

In the present embodiment, the first clamping arm 110 has a first control end 111 and a first connection end 112, and the first control end 111 and the first connection end 112 are disposed at different ends in the longitudinal extension direction of the first clamping arm 110. The second clamp arm 120 has a second control end 121 and a second connection end 122, and the second control end 121 and the second connection end 122 are provided at different ends in the longitudinal extension direction of the second clamp arm 120. Along the length extending direction of the second clamping arm 120, the first control end 111 and the second control end 121 are located on the same side of the first link 150, and the first connection end 112 and the second connection end 122 are located on the other side of the first link 150. In this embodiment, along the extending direction of the rotation center line of the first link 150 and the first clamping arm 110: the first connecting rod 150 has two groups respectively disposed on two different sides of the first clamping arm 110, and the second connecting rod 160 has two groups respectively disposed on two different sides of the first clamping arm 110, so that the rotation structure of the clamping assembly 100 is more stable. Referring to fig. 7, the first link 150 on each side is rotatably connected to the first clamp arm 110 about the fourth rotation center line 1004, and the first link 150 is rotatably connected to the second clamp arm 120 about the fifth rotation center line 1005; the second link 160 on each side is rotatably connected to the first clamp arm 110 about a sixth rotation center line 1006, and the second link 160 is rotatably connected to the second clamp arm 120 about a seventh rotation center line 1007. In the present embodiment, the fourth rotation center line 1004, the fifth rotation center line 1005, the sixth rotation center line 1006, and the seventh rotation center line 1007 are parallel to each other and all extend in the conveyance direction. It should be noted that, since the clamping assembly 100 is moved and rotated by the conveying member 230 during the conveying process, the components of the clamping assembly 100 have no absolute positional relationship in the XYZ three-dimensional coordinate system, and the structure of the clamping assembly 100 is mainly described with reference to the conveying direction in this embodiment.

The clamping assembly 100 is used to conduct the current of the negative electrode of the power source to the battery plate 1, and the clamping assembly 100 has various conductive structures, which are not developed one by one in the embodiment of the present invention, and only a part of examples are described below. For example, part or all of the clamping assembly 100 is a conductor; as another example, part or all of the clamping assembly 100 is provided with a conductor housing; as another example, a portion or all of the clamping assembly 100 may be provided with a conductive coating. For another example, the second clamping arm 120 is embedded with a conductor, all the second clamping portions 140 are conductors, the conductor embedded in the second clamping arm 120 is electrically connected to the second clamping portion 140, and the conductor embedded in the second clamping arm 120 is electrically connected to the negative electrode of the power supply.

Referring to fig. 6 to 9, in the present embodiment, the first link 150 and the second link 160 are disposed close to each other and spaced apart along the length extension direction of the first clamping arm 110, and the first link 150 and the second link 160 are located at a side away from the first control end 111, wherein the second link 160 is relatively closer to the first connecting end 112. The first clamping portion 130 is fixedly arranged on one side of the second connecting rod 160 away from the first clamping arm 110, and the second clamping portion 140 is fixedly arranged on the second connecting end 122. Therefore, in the present embodiment, the first control end 111 and the first clamping portion 130 are disposed at different end portions in the longitudinal extension direction of the first clamping arm 110, and the second control end 121 and the second clamping portion 140 are disposed at different end portions in the longitudinal extension direction of the second clamping arm 120. The first control end 111 is located on the same side of the second clamp arm 120 as the first clamp 130 in a direction perpendicular to the transport direction.

Referring to fig. 6 to 9, in the present embodiment, the first clamping portion 130 and the second clamping portion 140 are respectively elongated extending along the conveying direction, so as to be capable of simultaneously clamping the plurality of conductive members 11 arranged along the conveying direction. When the clamping assembly 100 is in the opened state, the clamping channel 101 extending in the conveying direction is formed between the first clamping portion 130 and the second clamping portion 140. Further, the first clamping portion 130 and the second clamping portion 140 are respectively fixed with protrusions, and the two protrusions are oppositely arranged along a direction perpendicular to the conveying direction. In this embodiment, the protrusion on the first clamping portion 130 is a first protrusion 131, the protrusion on the second clamping portion 140 is a second protrusion 141, the first clamping portion 130 is further provided with a groove, i.e. a first groove 132, and the first groove 132 and the second protrusion 141 are oppositely arranged along a direction perpendicular to the transmission direction. In this embodiment, each set of clamping assemblies 100 further includes a first magnetic member and a second magnetic member (not shown), wherein the first magnetic member is fixedly disposed on the first control end 111, and the second magnetic member is fixedly disposed on the second control end 121, and the first magnetic member and the second magnetic member can be close to or attracted by magnetic attraction. Specifically, one of the first magnetic member and the second magnetic member is a magnet, and the other is a magnet or a ferromagnetic material. The magnet in this embodiment includes an electromagnet; preferably, the electromagnet may be magnetized and demagnetized, with the electromagnet being magnetized in the first position 200a and demagnetized in the second position 200 b. More preferably, the opening and closing of the clamping assembly 100 may be controlled by magnetizing and demagnetizing the electromagnet, in which case the opening and closing member 310 may be omitted, and the electromagnet may constitute the opening and closing mechanism.

In other embodiments, there is a dimensional difference between the plurality of conductive members 11, and the conductive members 11 may be dislocated or turned during the clamping process, so that the first clamping portion 130 and the second clamping portion 140 may not clamp a portion of the conductive members 11. The first clamping portion 130 and/or the second clamping portion 140 are densely provided with anti-skid protruding points, and the anti-skid protruding points can be semicircular or saw-tooth. When the first clamping portion 130 and the second clamping portion 140 cooperate to clamp the plurality of conductive members 11, the conductive members 11 may be partially or fully embedded into the gaps between the anti-slip bumps, and even if there is a dimensional difference between the plurality of conductive members 11, or the conductive members 11 are dislocated or turned during the clamping process, the first clamping portion 130 and the second clamping portion 140 can cooperate to clamp the plurality of conductive members 11.

Referring to fig. 8 and 9, in the present embodiment, when the clamping assembly 100 is in the closed state, a control end gap 102 is provided between the first control end 111 and the second control end 121, and the width of the control end gap 102 is H along the direction perpendicular to the conveying direction. At this time, the extending direction of the first clamping arm 110 and the extending direction of the second clamping arm 120 are parallel to each other, the first magnetic member and the second magnetic member are close to each other by magnetic attraction, the two protrusions abut against each other, and the second protrusion 141 is engaged and clamped in the first groove 132. The width of the control end gap 102 gradually increases as the first control end 111 and the second control end 121 move away from each other in a direction perpendicular to the conveying direction during the transition of the clamping assembly 100 from the closed state to the open state. Referring to fig. 6 and 7, in the present embodiment, when the clamping assembly 100 is in the open state, the width of the control end gap 102 is H ', H' is greater than H. In some embodiments, when the clamping assembly 100 is in the closed state, the first control end 111 and the second control end 121 are close to each other, at which time h=0.

As can be seen from the above, in the clamping assembly 100 of the present embodiment, under the condition that no external force acts, the first control end 111 and the second control end 121 automatically approach under the action of magnetic attraction, and under the linkage action of the four-bar mechanism, the first clamping portion 130 abuts against the second clamping portion 140, and the clamping assembly 100 is kept in the closed state, so that the clamping assembly 100 is in a normally closed structure. When an external force is applied to urge the first control end 111 and the second control end 121 away from each other, the magnetic attraction force is overcome, and the first clamping portion 130 and the second clamping portion 140 are further away from each other, and the clamping assembly 100 is switched to the open state.

It should be noted that, during actual operation, since the conductive member 11 itself has a smaller thickness, when the clamping assembly 100 clamps a group of conductive members 11, the conductive members 11 are abutted between the second protrusions 141 and the first grooves 132, so the width of the control end gap 102 is actually slightly larger than H, that is, the clamping assembly 100 is not in a strictly closed state. However, this difference is negligible, so that the state when the clamping assembly 100 clamps a set of conductive members 11 is still referred to as a closed state in this embodiment.

Referring to fig. 9, the first clamping arm 110 of the clamping assembly 100 in the closed state in this embodiment is analyzed, and from the perspective of the drawing, the first clamping arm 110 receives a horizontal rightward magnetic force F1, receives a force F2 from the first link 150, and receives a force F3 (the direction of F3 may also deviate upward and rightward) from the second link 160, and these three forces are balanced. The first clamping arm 110 has a reaction force on the second connecting rod 160, that is, the reaction force of F3, and the reaction force of F3 presses the second connecting rod 160 downward, so that the first clamping portion 130 is pressed tightly against the second clamping portion 140. As can be seen from the above-mentioned stress analysis, the clamping assembly 100 in the present embodiment can form self-locking, so as to prevent the clamping assembly 100 from being separated from the conductive member 11 during the electroplating process.

Referring to fig. 3 to 5, in the present embodiment, two sets of opening and closing members 310 are used to implement automatic clamping and releasing of the conductive members 11 by the clamping assemblies 100, wherein the first opening and closing member 310a and the second opening and closing member 310b have substantially the same structure. In this embodiment, each group of the opening and closing members 310 has a second guiding section 312, a first guiding section 311 and a third guiding section 313, which extend along the conveying direction and are sequentially connected, and the opening and closing members 310 are integrally formed in a strip shape extending along the conveying direction. In this embodiment, a plurality of strip-shaped fixing members 231 are fixed on the conveying member 230 at intervals along the conveying direction, and each fixing member 231 extends along a direction perpendicular to the conveying direction. The second control end 121 of each set of clamping assemblies 100 is fixedly connected to the transmission member 230, and more particularly to an end of one of the fixing members 231. Thus, the opening and closing mechanism (here, the opening and closing member 310) is effectively used to urge the first control end 111 of the clamping assembly 100 relatively close to the corresponding second control end 121 at the first position 200a, and to urge the first control end 111 of the clamping assembly 100 relatively far from the corresponding second control end 121 at the second position 200 b. In this embodiment, in order to achieve effective engagement between the first control end 111 and the opening and closing member 310, the first control end 111 and the opening and closing member 310 are located on a side relatively close to the conveying member 230 along the length extending direction of the second clamping arm 120, and the first clamping portion 130 is located on a side relatively far from the conveying member 230.

Referring to fig. 3 to 5, in the present embodiment, when the first control end 111 is engaged with the shutter 310, in a direction perpendicular to the conveying direction: the second guide section 312, the first guide section 311, and the third guide section 313 can be disposed through the control end gap 102 of the clamping assembly 100. In this embodiment, the first guiding section 311 has an input end 311a and an output end 311b respectively disposed at two ends with different transmission directions, and the first guiding section 311 extends gradually and obliquely from the input end 311a to the output end 311 b. The second guide section 312 is connected to the lead-in end 311a and extends in the opposite direction to the transport direction, and the third guide section 313 is connected to the lead-out end 311b and extends in the transport direction. In this embodiment, when the first control end 111 is mated with the second guide section 312, the width of the control end gap 102 is no greater than H; when the first control end 111 is mated with the third guide section 313, the width of the control end gap 102 is greater than H and the first guide section 311 smoothly transitions between the second guide section 312 and the third guide section 313. When the first control end 111 is mated with the lead-in, the control end gap 102 has a width no greater than H; when the first control end 111 is mated with the lead-out, the control end gap 102 has a width greater than H.

As such, when the clamping assembly 100 is transported in the transport direction, the clamping assembly 100 can sequentially pass through the second guide section 312, the lead-in end 311a, the lead-out end 311b, and the third guide section 313, wherein the first control end 111 and the second guide section 312 may not be in contact due to the closer distance between the second guide section 312 and the second control end 121; as the clamping assembly 100 passes the first guide section 311, the first control end 111 begins to bear against the first guide section 311 and move along the first guide section 311; as the clamping assembly 100 continues to engage the third guide section 313, the first control end 111 remains against the shutter 310 and moves along the shutter 310. Accordingly, in the present embodiment, when the clamping assembly 100 is not engaged with the opening and closing member 310 or the clamping assembly 100 is engaged with the second guiding section 312, the clamping assembly 100 is kept in the closed state; the clamping assembly 100 gradually changes from the closed state to the open state during the movement of the clamping assembly 100 along the first guide section 311; during the movement of the clamping assembly 100 along the third guiding segment 313, the clamping assembly 100 is maintained in the open state, and the clamping channel 101 is opened for the conductive member 11 to enter and exit.

Referring to fig. 3 to 5, based on the above principle, in the present embodiment, the first guiding section 311 is used to drive the clamping assembly 100 from the closed state to the open state. Along the transmission direction: the tail end 313a of the third guiding section 313 in the first opening and closing member 310a is located at the first position 200a, and the first guiding section 311 in the second opening and closing member 310b is located at the second position 200 b. In other embodiments, the third guiding section 313 may not be provided, and the leading end 311b of the first guiding section 311 in the first opening and closing member 310a may be directly provided at the second position 200 b.

Referring to fig. 3 to 5, in this embodiment, along the direction perpendicular to the transmission direction, two sides of the transmission member 230 are respectively and fixedly connected with multiple groups of clamping assemblies 100, specifically, two ends of each fixing member 231 along the second direction Y are respectively and fixedly connected with the second control end 121 of one group of clamping assemblies 100, and the clamping assemblies 100 on two sides are respectively used for clamping the conductive members 11 on different battery pieces 1, so that the transmission member 230 can synchronously transmit the two groups of clamping assemblies 100 arranged at intervals along the second direction Y, double-line parallel of the electroplating process is realized, and the electroplating efficiency is improved. Accordingly, the opening and closing member 310 has two groups spaced along the second direction Y, and each side of the opening and closing member 310 is matched with the multiple groups of clamping assemblies 100 on the same side. Since the opening and closing member 310 is further divided into the first opening and closing member 310a and the second opening and closing member 310b, the first opening and closing member 310a includes two groups spaced along the second direction Y, and the second opening and closing member 310b also includes two groups spaced along the second direction Y. In this embodiment, in the first opening and clamping area S1 or the second opening and clamping area S3, along the direction perpendicular to the conveying direction, the first control end 111 of the clamping assembly 100, the opening and closing member 310, and the second control end 121 of the clamping assembly 100 on each side are sequentially disposed from inside to outside, and from the perspective of appearance, the first guide sections 311 of the two sets of opening and closing members 310 disposed at intervals along the second direction Y are combined to present an "eight" shape.

As can be seen from fig. 1 to 5, in the foregoing embodiment, due to the arrangement of the first driving wheel 210 and the second driving wheel 220, the transmission member 230 has two curved extending sections respectively disposed in the first opening and clamping area S1 and the second opening and clamping area S3 during movement, and the positions of the first opening and closing member 310a and the second opening and closing member 310b exactly correspond to the two curved extending sections, so that at least part of the opening and closing member 310 extends along the circumferential direction of the first driving wheel 210 and/or the second driving wheel 220. Specifically, in each group of the opening and closing members 310, the second guide section 312 and the first guide section 311 respectively extend in the horizontal direction, one end (i.e., the tail end 313 a) of the third guide section 313 away from the first guide section 311 extends in the horizontal direction, and a part of the third guide section 313 is parallel to the curved extending section and extends along a curve. Specifically, as shown in fig. 4 and 5, the third guiding section 313 of the first shutter 310a extends along the circumferential direction of the first driving wheel 210, and the third guiding section 313 of the second shutter 310b extends along the circumferential direction of the second driving wheel 220, except for the tail end 313 a.

More specifically, in the present embodiment, in the first shutter 310 a: the second guide section 312 and the first guide section 311 are located above the first driving wheel 210 and extend in the horizontal direction, a part of the third guide section 313 extends along an arc from top to bottom along the circumferential direction of the first driving wheel 210, and the lower end (i.e. the tail end 313 a) of the third guide section 313 extends in the horizontal direction. Second shutter 310 b: the second guide section 312 and the first guide section 311 are located below the second driving wheel 220 and extend in a horizontal direction, a part of the third guide section 313 extends in an arc from bottom to top along the circumferential direction of the second driving wheel 220, and an upper end portion (i.e., a tail end 313 a) of the third guide section 313 extends in the horizontal direction.

In this embodiment, the second guide section 312 and the first guide section 311 preferably extend horizontally, so that the clamping assembly 100 can complete the clamping opening in the horizontal movement process, the clamping opening process is more stable, and the risk of shutdown caused by shell clamping is reduced. The third guide section 313 includes an arc-shaped section and a horizontal section disposed along the periphery of the transmission 230 at the wrap angle with the first transmission wheel 210 (or the second transmission wheel 220). If the third guiding section 313 of the first opening and closing member 310a has only an arc section, the clamping assembly 100 will directly clamp the conductive member 11 during the arc movement, and the conductive member 11 will be bent or even broken when the clamping assembly 100 enters the horizontal movement stage, so as to affect the subsequent conduction; the horizontal section of the third guide section 313 ensures that the clamping assembly 100 clamps the conductive member 11 during the horizontal movement, and the above problem does not occur; at the same time, the conductive member 11 is more conveniently and stably held during the horizontal movement.

Referring to fig. 3 to 5, in the present embodiment, the support member 250 and the second clamping arm 120 are disposed on two different sides of the transmission member 230 along the third direction Z. Each set of clamping assemblies 100 includes a guide 170, the guide 170 being connected to the second clamping arm 120, the guide 170 being connected to the support 250 so as to be capable of relative movement along the direction of extension of the support 250 when the clamping assemblies 100 are transported along the horizontal extension, i.e. the guide 170 being abutted or clamped to the support 250 and being capable of sliding or rolling along the direction of extension of the support 250. Specifically, the guide member 170 in this embodiment includes a roller, which is connected to the second clamping arm 120 in a manner capable of relatively rotating about its own axis 1003, the axis 1003 of the roller extending in the third direction Z, and the roller being in rolling engagement with the support member 250 when the clamping assembly 100 is transported along the horizontal extension. In this embodiment, the roller is circumferentially provided with a guiding groove 171, the guiding groove 171 is an annular groove around the axis 1003, and when the clamping assembly 100 is transported along the horizontal extension section, at least part of the supporting member 250 is clamped in the guiding groove 171, so that the roller can be in rolling fit with the supporting member 250, and in particular, the side edge of the supporting member 250 can be clamped in the guiding groove 171. In other embodiments, the guide 170 and the second clamping arm 120 may be disposed relatively fixedly, in which case the support 250 can likewise be snapped into the guide groove 171 (in which case the guide groove 171 may be disposed only on a side adjacent to the support 250, rather than in an annular groove), and the support 250 slidably engages the guide 170 as the clamping assembly 100 is transported along the horizontal extension. In this embodiment, the annular transmission member 230 has certain flexibility and elasticity, and the clamping assembly 100 is directly and fixedly connected with the transmission member 230, and because the clamping assembly 100 is heavy and the number of the clamping assemblies is large, the transmission member 230 is loosened only by supporting the clamping assembly 100 by the transmission member 230, thereby causing slipping. In this embodiment, the supporting member 250 and the guiding member 170 are matched to guide, support and limit the transmission of the clamping assembly 100, which is helpful to maintain the shape of the transmission member 230, and reduce the shake and wobble of the clamping assembly 100 in the non-transmission direction, so that the clamping assembly 100 clamps the conductive member 11 more stably.

The working principle of the opening and closing mechanism in this embodiment is further described below:

referring to fig. 1 to 5, when the clamping assembly 100 enters the first open clamping area S1 from the reflow area S4, the second guide section 312 of the first open/close member 310a first passes through the control end gap 102 of the clamping assembly 100, and at this time, the inner wall of the first control end 111 (i.e., a side wall near the second control end 121) contacts with the second guide section 312 or maintains a certain gap, the width of the control end gap 102 is H, and the clamping assembly 100 is still in the closed state.

As the clamping assembly 100 is moved in the first clamping open region S1, the first guide section 311 passes through the control end gap 102 of the clamping assembly 100, and the inner wall of the first control end 111 abuts against the first guide section 311 and slides along the first guide section 311. Because the distance between the first guiding section 311 and the second control end 121 is gradually increased, the control end gap 102 is gradually enlarged, and under the action of the four-bar mechanism, the first clamping arm 110 drives the second connecting rod 160 to rotate, and the first clamping portion 130 fixedly connected with the second connecting rod 160 synchronously rotates, so that the first clamping portion 130 is far away from the second clamping portion 140, and the clamping assembly 100 is converted into an open state.

After the clamping assembly 100 is converted into the open state, the first control end 111 slides to the third guide section 313, the third guide section 313 passes through the control end gap 102 of the clamping assembly 100, and the inner wall of the first control end 111 abuts against the third guide section 313, so that the control end gap 102 remains unchanged at H', and the clamping assembly 100 remains in the open state. As the first control end 111 slides to the trailing end 313a, the conductive member 11 on one of the battery plates 1 moves synchronously into the clamping channel 101 of the clamping assembly 100.

When the first control end 111 slides out of the tail end 313a, the clamping assembly 100 automatically and rapidly changes to a closed state under the interaction of the first magnetic member and the second magnetic member to clamp the corresponding conductive member 11, so that the battery piece 1 connected with the conductive member 11 is connected to the negative electrode of the power supply. At this time, the battery sheet 1 enters the plating tank 400 to form a closed plating circuit. After the first control end 111 slides out of the tail end 313a, the clamping assembly 100 enters the clamping area S2, and in the clamping area S2, the clamping assembly 100 maintains the state of clamping the conductive member 11, and the battery piece 1 is placed in the plating tank 400 and is plated.

When the plating is completed, the clamping assembly 100 moves to the second clamping open area S3. The clamping assembly 100 is switched to an open state to release the conductive member 11 so that the plating circuit is broken. Thereafter, the plated battery sheet 1 is continuously transferred to a subsequent process stage by the transfer roller 500 in the first direction X. In the second opening and clamping area S3, the clamping assembly 100 is opened by the second opening and clamping member 310b, wherein the action of driving the clamping assembly 100 to switch from the closed state to the open state is mainly completed by the first guiding section 311 of the second opening and clamping member 310b, and the principle thereof is similar to that of the first opening and clamping member 310a in the first opening and clamping area S1 for opening the clamping assembly 100, and will not be repeated herein.

The clamping assembly 100 passes through the second clamping opening area S3 and then is transferred to the reflow area S4 to complete one cycle. Since the clip assembly 100 in the present embodiment is of a normally closed type structure, the clip assembly 100 is maintained in a closed state in the reflow region S4. The clamping assembly 100 passing through the reflow region S4 is reflowed to the first open clamping region S1, and a new cycle is performed again.

In other embodiments, the first rotation center line 1001 of the first driving wheel 210 and the second rotation center line 1002 of the second driving wheel 220 may also extend along the third direction Z, respectively, and the conveying direction of the conveying member 230 and the clamping assembly 100 is converted into a unidirectional closed loop in a horizontal plane. Based on the transmission direction of the horizontal closed loop, a person skilled in the art can adaptively adjust the structures such as the clamping assembly 100 and the opening and closing mechanism of the present embodiment, and can also realize the technical effect of automatically opening and closing the clamping assembly 100.

Example 2

Referring to fig. 10 to 12, the present embodiment provides a solar cell electroplating apparatus for performing continuous electroplating treatment on a plurality of horizontally placed and transported cells 1 along a first direction X, which also includes a clamping assembly 100, a transport mechanism 200, an opening and closing mechanism, an electroplating bath 400, a transport roller 500, and the like. In this embodiment, the arrangement of the battery sheet 1 and the conductive member 11, the plating tank 400, the transfer roller 500, and the like are the same as those of embodiment 1, and description of the orientation is continued using the XYZ three-dimensional coordinate system in embodiment 1. The parts not specifically described in this embodiment are the same as those in embodiment 1 by default. The main difference between this embodiment and embodiment 1 is that the arrangement of the clamping assembly 100, the transmission mechanism 200 and the opening and closing mechanism is different.

In this embodiment, the conveying mechanism 200 is also used for conveying the clamping assemblies 100 along the conveying direction, and the clamping assemblies 100 have multiple groups arranged at intervals along the conveying direction. Referring to fig. 10 and 11, the conveying direction in the present embodiment extends along a straight line in a unidirectional manner, specifically along the first direction X, and all the clamping assemblies 100 keep synchronous operation with the battery plate 1. In this embodiment, since the clamping assembly 100 is not recycled, the clamping assembly 100 needs to be fed before the first position 200a, i.e. the clamping assembly 100 is mounted on the conveying mechanism 200; after the second position 200b, the clamping assembly 100 needs to be blanked, i.e. the clamping assembly 100 is detached from the transfer mechanism 200. In this embodiment, the conveying mechanism 200 may be specifically a conductive conveyor belt as in embodiment 1, a chain conveyor mechanism, or other known conveying mechanism.

Referring to fig. 12, in the present embodiment, each set of clamping assemblies 100 includes a first clamping arm 110 and a second clamping arm 120. The first clamping arm 110 has a first control end 111 and a first connection end 112 respectively disposed at two ends with different length extension directions, and the first clamping portion 130 is fixedly disposed on the first connection end 112. The second clamping arm 120 has a second control end 121 and a second connecting end 122 respectively disposed at two ends different from each other in the longitudinal extension direction, and the second clamping portion 140 is fixedly disposed on the second connecting end 122. In this embodiment, the first clamping arm 110 and the second clamping arm 120 are hinged to each other, and the rotation center line of the two extends along the first direction X. The first control end portion 111 and the first clamping portion 130 are disposed on different sides of the second clamping arm 120 along a direction perpendicular to the conveying direction (i.e., the second direction Y), so that when the first control end portion 111 and the second control end portion 121 approach each other along the second direction Y, the first clamping portion 130 and the second clamping portion 140 also approach each other along the second direction Y.

Referring to fig. 12, in this embodiment, each set of clamping assemblies 100 includes an elastic member for providing a force required for the first clamping portion 130 and the second clamping portion 140 to approach each other, and specifically, a tension spring 181 is adopted here, and two ends of the tension spring 181 are respectively connected to the first control end 111 and the second control end 121. In this embodiment, in each set of the clamping assemblies 100, the first clamping portion 130 and the second clamping portion 140 are respectively and fixedly provided with a protrusion (i.e. the first protrusion 131 and the second protrusion 141), and the two protrusions are oppositely disposed along the second direction Y. As such, the clamping assembly 100 in this embodiment is also a normally closed structure: the tension spring 181 drives the first control end 111 and the second control end 121 to approach each other without external force, the clamping assembly 100 is in a closed state, the two protrusions are abutted against each other, and the width of the control end gap 102 is H.

Referring to fig. 10 and 11, in the present embodiment, the opening and closing mechanism also includes two sets of opening and closing members 310 respectively disposed near the first position 200a and the second position 200b, wherein the structures of the two sets of opening and closing members 310 are identical. In this embodiment, both sets of opening and closing members 310 are disposed on one side of the second direction Y of the conveying mechanism 200. Since the transfer direction extends in the horizontal direction, the shutter 310 also extends completely in the horizontal direction, and no longer has an arc segment curved in the third direction Z. In this embodiment, the second control end 121 of each clamping assembly 100 is fixedly connected to the transmission mechanism 200. Each group of opening and closing members 310 includes a second guide section 312, a first guide section 311, a third guide section 313 and a fourth guide section 314 extending along the conveying direction and sequentially connected. When the first control end 111 is mated with the shutter 310, in the second direction Y: the second guide section 312, the first guide section 311, the third guide section 313 and the fourth guide section 314 can be disposed through the control end gap 102 of the clamping assembly 100. When the first control end 111 mates with the second guide section 312, the control end gap 102 has a width no greater than H; when the first control end 111 is mated with the third guide section 313, the width of the control end gap 102 is greater than H and the first guide section 311 smoothly transitions between the second guide section 312 and the third guide section 313. Further, in the present embodiment, the fourth guiding section 314 extends obliquely from the tail end 313a of the third guiding section 313 along the conveying direction, and the control end gap 102 gradually decreases along the direction perpendicular to the conveying direction during the process that the first control end 111 is engaged with the fourth guiding section 314 and slides along the fourth guiding section 314, so that the fourth guiding section 314 plays the role of tail guiding to buffer the closing of the clamping assembly 100.

In this embodiment, the opening and closing member 310 cooperates with the first control end 111 along a side wall of the second direction Y away from the conveying mechanism 200 to automatically open and close the clamping assembly 100. During transport of the clamping assembly 100 in the first direction X, first, the second guide section 312 passes through the control end gap 102 of the clamping assembly 100, the clamping assembly 100 being maintained in a closed state; subsequently, the first guide section 311 gradually enlarges the control end gap 102, and the clamping assembly 100 gradually shifts to the open state; next, the third guide section 313 keeps the clamping assembly 100 in an open state; finally, the fourth guide section 314 gradually returns the clamping assembly 100 to the closed position. In this embodiment, along the transmission direction: the fourth guiding section 314 of the first opening and closing member 310a is located at the first position 200a, and is used for driving the clamping assembly 100 to switch from the open state to the closed state; the first guide section 311 of the second shutter 310b is located at the second position 200b for driving the clamping assembly 100 from the closed state to the open state. The clamping assembly 100 in this embodiment can be opened and closed gradually, so that the problem that the connection between the conductive member 11 and the clamping assembly 100 is damaged due to the rapid opening or the rapid closing can be avoided.

Referring to fig. 10 and 11, only the opening and closing member 310 and the clamping assembly 100 are shown on the second direction Y side of the conveying mechanism 200 in the present embodiment. In other embodiments, similar to embodiment 1, two sets of the opening and closing members 310 and the clamping assembly 100 may be symmetrically disposed on two sides of the second direction Y of the transmission mechanism 200, so as to implement double-line parallelism, thereby improving the production efficiency of the electroplating apparatus.

Example 3

Referring to fig. 13 to 15, the present embodiment provides a solar cell electroplating apparatus for performing a continuous electroplating process on a plurality of horizontally placed and transported cells 1 in a first direction X. The electroplating apparatus of this embodiment is substantially the same as that of embodiment 2, and the main difference is in the specific arrangement of the clamping assembly 100 and the opening and closing mechanism.

Referring to fig. 15, in this embodiment, each set of clamping assemblies 100 includes a first clamping arm 110 and a second clamping arm 120, which have substantially the same structure and connection relationship as those of embodiment 2. In this embodiment, each set of clamping assemblies 100 includes an elastic member for providing a force required to separate the first clamping portion 130 and the second clamping portion 140 from each other, and here, a compression spring 182 is specifically adopted, and two ends of the compression spring 182 respectively abut against the first control end 111 and the second control end 121. In this embodiment, in each group of the clamping assemblies 100, the first clamping portion 130 is provided with a groove, i.e. the first groove 132, and the second clamping portion 140 is fixedly provided with a protrusion, i.e. the second protrusion 141, and the first groove 132 and the second protrusion 141 are disposed opposite to each other along the second direction Y. As such, the clamping assembly 100 in this embodiment is a normally open structure: under the condition that no external force is applied, the pressure spring 182 drives the first control end 111 and the second control end 121 to be away from each other, the clamping assembly 100 is in the open state, and the first groove 132 and the second protrusion 141 are away from each other, so that the width H' of the control end gap 102 is larger than H. When an external force is applied to drive the first control end 111 and the second control end 121 to approach each other, the elastic force of the compression spring 182 is overcome, the width of the control end gap 102 is reduced, the clamping assembly 100 is converted into a closed state, the second protrusion 141 is clamped in the first groove 132 in a matching manner, so as to clamp the conductive member 11 conveniently, reduce the risk of slipping, and the width of the control end gap 102 in the closed state is H.

Referring to fig. 13 and 14, in the present embodiment, the opening and closing mechanism may include only one set of opening and closing members 310 along the first direction X, where the opening and closing members 310 extend in the horizontal direction on one side of the conveying mechanism 200 and extend from before the first position 200a to after the second position 200 b. In this embodiment, the opening and closing member 310 and the conveying mechanism 200 (e.g., the conveying member 230) are disposed at intervals along a direction perpendicular to the conveying direction (i.e., the second direction Y), and a guiding gap 301 is provided between the opening and closing member 310 and the conveying member 230.

Referring to fig. 14, in the present embodiment, the second control end 121 of the clamping assembly 100 is fixedly connected to the transmission mechanism 200. The opening and closing members 310 each include a third guide section 313, a first guide section 311, a second guide section 312, and a fourth guide section 314 extending in the conveying direction and sequentially connected. The first guiding section 311 has an input end 311a and an output end 311b respectively disposed at two ends with different transmission directions, and the first guiding section 311 extends gradually and obliquely from the input end 311a to the output end 311 b; the second guide section 312 is connected to the lead-out end 311b and extends in the conveying direction, and the third guide section 313 is connected to the lead-in end 311a and extends in the opposite direction to the conveying direction.

Referring to fig. 14, in the present embodiment, when the first control end 111 is engaged with the shutter 310, the first control end 111 is located in the guide gap 301 in a direction perpendicular to the conveying direction (i.e., the second direction Y). Specifically, in a direction perpendicular to the transport direction: when the first control end 111 is matched with the leading-in end 311a, the width of the control end gap 102 is larger than H; when the first control end 111 is mated with the lead-out 311b, the width of the control end gap 102 is no greater than H; during the transfer of the clamping assembly 100 from the lead-in end 311a to the lead-out end 311b, the first control end 111 abuts the first guide section 311 and moves along the first guide section 311, with the control end gap 102 gradually increasing. Further, in a direction perpendicular to the transport direction: when the first control end 111 mates with the second guide section 312, the control end gap 102 has a width no greater than H; when the first control end 111 mates with the third guide section 313, the control end gap 102 has a width greater than H. In this embodiment, the fourth guide section 314 extends gradually obliquely from the end of the second guide section 312 in the conveying direction, and the width of the control end gap 102 gradually increases in the direction perpendicular to the conveying direction when the first control end 111 is mated with the fourth guide section 314.

Referring to fig. 14, in the present embodiment, the first guiding section 311 is used to drive the clamping assembly 100 to switch from the open state to the closed state, so that the first guiding section 311 is disposed at the first position 200 a; the second guide section 312 extends from the first position 200a to the second position 200b, and the third guide section 313 is located before the first position 200 a; the fourth guide section 314 is configured to facilitate the progressive transition of the clamping assembly 100 from the closed state to the open state, such that the fourth guide section 314 is positioned at the second position 200 b. In this embodiment, when the first control end 111 is mated with the third guide section 313, the outer wall of the first control end 111 (i.e., a side wall away from the second control end 121) abuts or is in clearance fit with the third guide section 313; during the process of transferring the clamping assembly 100 from the lead-in end 311a to the lead-out end 311b, the outer wall of the first control end 111 abuts against the first guide section 311 and moves along the first guide section 311; during the transfer of the clamping assembly 100 from the first position 200a to the second position 200b, the first control end 111 is always located in the guide gap 301 and its outer wall is always in abutment with the second guide section 312.

Referring to fig. 14, the operating principle of the opening and closing mechanism in this embodiment is specifically as follows:

During transport of the clamping assembly 100, the first control end 111 first enters the guide gap 301 between the third guide section 313 and the transport mechanism 200, the outer wall of the first control end 111 is close to or in contact with the inner wall of the third guide section 313, and the clamping assembly 100 is in an open state.

When the first control end 111 enters the guide gap 301 between the first guide section 311 and the transmission mechanism 200, the outer wall of the first control end 111 abuts against the inner wall of the first guide section 311. As the guide gap 301 is continuously reduced, so is the control end gap 102, at which time the clamping assembly 100 gradually transitions from an open state to a closed state.

After the first control end 111 enters the guide gap 301 between the second guide section 312 and the transport mechanism 200, the width of the control end gap 102 is reduced to about H, at which time the clamping assembly 100 is in a closed state and clamps a corresponding set of conductive members 11. During the electroplating process, the first control end 111 is always located in the control end gap 102 between the second guide section 312 and the transport mechanism 200 and remains clamped against the conductive element 11.

After the first control end 111 enters the guide gap 301 between the fourth guide section 314 and the transport mechanism 200, the guide gap 301 increases and the control end gap 102 increases gradually, and the clamping assembly 100 changes gradually from the closed state to the open state, thereby gradually releasing the conductive element 11 until the conductive element 11 is completely released near the end of the fourth guide section 314.

In other embodiments, when the plating apparatus needs to perform plating twice, for example, copper plating is performed before tin plating, two sets of the opening and closing members 310 in this embodiment may be provided along the conveying direction.

Example 4

Referring to fig. 16 to 18, the present embodiment provides a solar cell electroplating apparatus for performing a continuous electroplating process on a plurality of horizontally placed and transported cells 1 in a first direction X. The electroplating apparatus of this embodiment is substantially the same as that of embodiment 2, and the main difference is in the specific arrangement of the clamping assembly 100 and the opening and closing mechanism.

Referring to fig. 16 and 17, in the present embodiment, each set of clamping assemblies 100 includes a first clamping arm 110 and a second clamping arm 120. The first clamping arm 110 has a first control end 111 and a first connection end 112 respectively disposed at two ends with different length extension directions, and the first clamping portion 130 is fixedly disposed on the first connection end 112. The second clamping arm 120 has a second control end 121 and a second connecting end 122 respectively disposed at two ends different from each other in the longitudinal extension direction, and the second clamping portion 140 is fixedly disposed on the second connecting end 122. In this embodiment, the first clamping arm 110 and the second clamping arm 120 are hinged to each other, and the rotation center line of the two extends along the first direction X. The first control end 111 and the first clamping portion 130 are located on the same side of the second clamping arm 120 along a direction perpendicular to the conveying direction (i.e., the second direction Y), and when the first control end 111 and the second control end 121 are close to each other along the second direction Y, the first clamping portion 130 and the second clamping portion 140 are far away from each other along the second direction Y.

Referring to fig. 16 and 17, in this embodiment, each set of clamping assemblies 100 includes an elastic member for providing a force required for the first clamping portion 130 and the second clamping portion 140 to approach each other, and here, a compression spring 182 is specifically adopted, and two ends of the compression spring 182 are respectively connected to the first control end 111 and the second control end 121. In this embodiment, in each set of the clamping assemblies 100, the first clamping portion 130 and the second clamping portion 140 are respectively and fixedly provided with a protrusion, and the two protrusions are oppositely disposed along the second direction Y. As such, the clamping assembly 100 in this embodiment is also a normally closed structure: as shown in fig. 16, when no external force is applied, the compression spring 182 drives the first control end 111 and the second control end 121 away from each other, the clamping assembly 100 is in a closed state, the two protrusions abut against each other, a control end gap 102 is formed between the first control end 111 and the second control end 121, and the width of the control end gap 102 is h along the direction perpendicular to the transmission direction. Referring to fig. 17, when an external force urging the first control end portion 111 and the second control end portion 121 toward each other in a direction perpendicular to the transmission direction is applied, the elastic force of the compression spring 182 is overcome, the clamping assembly 100 is shifted from the closed state to the open state, and the width of the control end gap 102 is reduced; when the clamping assembly 100 is in the open state, the width of the control end gap 102 is less than h.

Referring to fig. 18, in this embodiment, the second control end 121 of each clamping assembly 100 is fixedly connected to a transmission mechanism 200 (specifically, a transmission member 230). According to the specific structure of the clamping assembly 100, in the present embodiment, the opening and closing mechanism is used to urge the first control end 111 of the clamping assembly 100 relatively away from the corresponding second control end 121 at the first position 200a, and to urge the first control end 111 of the clamping assembly 100 relatively close to the corresponding second control end 121 at the second position 200 b.

Referring to fig. 18, in the present embodiment, the opening and closing mechanism also includes two sets of opening and closing members 310 disposed near the first position 200a and the second position 200b, respectively, the first opening and closing member 310a and the second opening and closing member 310b, and the structures of the two sets of opening and closing members 310 are identical. In this embodiment, two sets of the opening and closing members 310 are spaced apart from the conveying mechanism 200 (e.g. the conveying member 230) along a direction perpendicular to the conveying direction (i.e. the second direction Y), and a guiding gap 301 is provided between the opening and closing members 310 and the conveying member 230.

In this embodiment, each of the opening and closing members 310 includes a second guiding section 312, a first guiding section 311 and a third guiding section 313 extending along the conveying direction and sequentially connected. Wherein when the first control end 111 is mated with the shutter 310, the first control end 111 is located in the guide gap 301 in a direction perpendicular to the conveying direction (i.e., the second direction Y). Specifically, in a direction perpendicular to the transport direction: when the first control end 111 is mated with the second guide section 312, the control end gap 102 has a width not less than h, and the clamping assembly 100 is in a closed state; when the first control end 111 mates with the third guide section 313, the control end gap 102 has a width less than h and the clamping assembly 100 is in an open state. The first guide section 311 transitions smoothly between the second guide section 312 and the third guide section 313, and the width of the control end gap 102 gradually decreases and the clamping assembly 100 gradually transitions from the closed state to the open state as the first control end 111 engages the first guide section 311 and moves along the first guide section 311.

Referring to fig. 18, in the present embodiment, the end of the third guiding section 313 in the first opening and closing member 310a is disposed at the first position 200a, so as to drive the clamping assembly 100 to quickly switch from the open state to the closed state; the first guiding section 311 of the second opening and closing member 310b is disposed at the second position 200b, for driving the clamping assembly 100 to gradually switch from the closed state to the open state. The normally closed clamp assembly 100 can be maintained in a closed state by the force of the compression spring 182 during the transfer of the clamp assembly 100 between the first and second shutters 310a and 310b in the transfer direction.

Example 5

Referring to fig. 19 to 21, the present embodiment provides a solar cell electroplating apparatus for performing a continuous electroplating process on a plurality of horizontally placed and transported cells 1 in a first direction X. The electroplating apparatus of this embodiment is substantially the same as that of embodiment 4, and the main difference is in the specific arrangement of the clamping assembly 100 and the opening and closing mechanism.

Referring to fig. 19 and 20, in this embodiment, each set of clamping assemblies 100 includes a first clamping arm 110 and a second clamping arm 120, which have substantially the same structure and connection relationship as those of embodiment 4. In this embodiment, each set of clamping assemblies 100 includes a magnetic member for providing a force required to move the first clamping portion 130 and the second clamping portion 140 away from each other. Specifically, the first control end 111 is fixedly provided with a first magnetic member 183, the second control end 121 is fixedly provided with a second magnetic member 184, and the first magnetic member 111 and the second magnetic member 121 can be attracted by magnetic attraction. As such, the clamping assembly 100 in this embodiment is a normally open structure: referring to fig. 19, when no external force is applied, the first magnetic member 111 and the second magnetic member 121 attract each other and drive the first control end 111 and the second control end 121 to approach each other, the first clamping portion 130 and the second clamping portion 140 are spaced apart, and the clamping assembly 100 is in an open state, and the width of the control end gap 102 is smaller than h. Referring to fig. 20, when an external force is applied to urge the first and second control ends 111 and 121 away from each other, the magnetic attraction force between the first and second magnetic members 111 and 121 is overcome, the width of the control end gap 102 increases, the clamping assembly 100 is converted into a closed state in which the width of the control end gap 102 is h.

Referring to fig. 21, in the present embodiment, the opening and closing mechanism may include only one set of opening and closing members 310 in the first direction X, and the opening and closing members 310 extend in the horizontal direction on one side of the conveying mechanism 200 and extend from before the first position 200a to after the second position 200 b. In this embodiment, the second control end 121 of the clamping assembly 100 is fixedly connected to the transmission mechanism 200. The opening and closing members 310 each include a second guide section 312, a first guide section 311, a third guide section 313, and a fourth guide section 314 extending in the conveying direction and sequentially connected.

Referring to fig. 21, in this embodiment, when the first control end 111 is matched with the opening and closing member 310, the second guide section 312, the first guide section 311, the third guide section 313 and the fourth guide section 314 can be inserted into the corresponding control end gap 102 along the direction perpendicular to the conveying direction (i.e. the second direction Y). Specifically, in a direction perpendicular to the transport direction: when the first control end 111 mates with the second guide section 312, the control end gap 102 has a width less than h; when the first control end 111 mates with the third guide section 313, the control end gap 102 has a width h; the control end gap 102 gradually increases as the first control end 111 mates with the first guide section 311 and travels along the first guide section 311, the clamping assembly 100 gradually transitions from an open state to a closed state; the width of the control end gap 102 gradually decreases as the first control end 111 is engaged with the fourth guide section 314 and travels along the fourth guide section 314, and the clamping assembly 100 gradually transitions from the closed state to the open state.

Referring to fig. 21, in the present embodiment, a first guiding section 311 is disposed at a first position 200a for driving the clamping assembly 100 to gradually transition from the open state to the closed state; the fourth guiding section 314 is disposed at the second position 200b, and is used for driving the clamping assembly 100 to gradually switch from the closed state to the open state. The clamping assembly 100 can be maintained in a closed state by the third guide section 313 during the transfer of the clamping assembly 100 in the transfer direction from the first position 200a to the second position 200 b.

Example 6

The overall structure of the solar cell electroplating apparatus is substantially the same as that of embodiment 1, and the main difference is that the specific arrangement of the clamping assembly 100 and the opening and closing mechanism is different.

Fig. 22 shows a schematic structure of a set of clamping assemblies 100 in this embodiment, which includes a first clamping arm 110 and a second clamping arm 120, wherein a first clamping portion 130 is fixedly arranged at a lower end portion of the first clamping arm 110, and a second clamping portion 140 is fixedly arranged at a lower end portion of the second clamping arm 120. The first clamping arm 110 and the second clamping arm 120 in this embodiment can move relatively along a direction perpendicular to the conveying direction, so as to realize opening and closing of the clamping assembly 100.

In this embodiment, the opening and closing member 310 is not disposed around the transmission mechanism 200, and the opening and closing mechanism includes a driving device 320. The driving devices 320 have a plurality of groups, and each group of clamping assemblies 100 is connected to a group of driving devices 320, and each group of driving devices 320 is used for driving the first clamping portion 130 and the second clamping portion 140 of the corresponding clamping assembly 100 to be close to each other or far away from each other, so as to drive the clamping assembly 100 to switch between a closed state and an open state. The driving device 320 is preferably a dc motor or a cylinder.

In other embodiments, the first clamping arm 110 and the second clamping arm 120 of each clamping assembly 100 may also be configured to be hinged to each other (see embodiments 2 and 3), and the corresponding driving device 320 may be capable of driving the first clamping arm 110 and/or the second clamping arm 120 to rotate about the hinge point, so that the first clamping portion 130 and the second clamping portion 140 approach each other or separate from each other to clamp or unclamp the conductive element 11.

In this embodiment, the electroplating apparatus further includes a control unit (not shown in the figure), which may be an industrial personal computer or a PLC, and the control unit may be a remote control unit or a local control unit. The control unit is respectively connected to the plurality of driving devices 320 in a communication manner to control the operation of each driving device 320.

In this embodiment, when the conveying roller 500 or other conveying devices sequentially convey the plurality of battery pieces 1 into the plating tank 400 along the first direction X, the corresponding plurality of driving devices 320 sequentially clamp the conductive members 11 on the plurality of battery pieces 1 sequentially entering the plating tank 400. When the plurality of battery pieces 1 sequentially leave the plating tank 400, the corresponding plurality of driving devices 320 sequentially release the conductive members 11 on the plurality of battery pieces 1 sequentially leave the plating tank 400.

The electroplating apparatus provided in this embodiment is mainly suitable for the case where the number of the clamping assemblies 100 is small (for example, less than 100), and when the number of the clamping assemblies 100 is large, the number of the driving devices 320 is correspondingly increased, so that the control difficulty of the control unit is increased, the structure of the electroplating apparatus is more complex, and meanwhile, the manufacturing and running costs of the electroplating apparatus are also significantly increased due to a large number of the driving devices 320.

The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims

1. A solar cell electroplating device is characterized in that: the electroplating equipment comprises a clamping assembly and a transmission mechanism for transmitting the clamping assembly along a transmission direction, wherein the transmission mechanism is provided with a first position and a second position which are arranged at intervals along the transmission direction;

the clamping assemblies are provided with a plurality of groups which are arranged at intervals along the transmission direction, each group of clamping assemblies comprises a first clamping part and a second clamping part, at least one part of the first clamping part and the second clamping part is made of conductive materials, each group of clamping assemblies is provided with a closed state and an open state, and when the clamping assemblies are in the closed state, the first clamping part and the second clamping part are abutted against each other; when the clamping assembly is in an open state, the first clamping part and the second clamping part are arranged at intervals;

the electroplating apparatus further includes an opening and closing mechanism for urging the clamping assembly from the open state to the closed state at the first position and for urging the clamping assembly from the closed state to the open state at the second position.

2. The solar cell electroplating apparatus of claim 1, wherein: the first position and the second position are arranged at intervals along the horizontal direction, and the clamping assembly is horizontally and linearly transmitted to the second position from the first position; the clamp assembly remains in a closed state during transfer of the clamp assembly from the first position to the second position.

3. The solar cell electroplating apparatus of claim 1, wherein: the transmission mechanism is used for circularly transmitting the plurality of groups of clamping assemblies between the first position and the second position, and the transmission direction is a unidirectional closed loop.

4. The solar cell electroplating apparatus of claim 1, wherein: when the clamping assembly is in an open state, a clamping channel extending along the conveying direction is formed between the first clamping part and the second clamping part.

5. The solar cell electroplating apparatus of claim 1, wherein: each group of clamping assemblies comprises a first clamping arm and a second clamping arm, the first clamping arm is provided with a first control end part, and the first clamping part is arranged on the first clamping arm; the second clamping arm is provided with a second control end part, and the second clamping part is arranged on the second clamping arm;

when the clamping assembly is in a closed state, a control end gap is arranged between the first control end part and the second control end part, and the width of the control end gap is H along the direction perpendicular to the conveying direction;

When the clamping assembly is switched from the closed state to the open state, the first control end part and the second control end part are mutually far away along the direction perpendicular to the transmission direction;

when the clamping assembly is in an open state, the width of the control end gap is greater than H.

6. The solar cell electroplating apparatus of claim 1, wherein: each group of clamping assemblies comprises a first clamping arm and a second clamping arm, the first clamping arm is provided with a first control end part, and the first clamping part is arranged on the first clamping arm; the second clamping arm is provided with a second control end part, and the second clamping part is arranged on the second clamping arm;

the first control end part and the second control end part are mutually close along the direction perpendicular to the conveying direction in the process of switching the clamping assembly from the closed state to the open state;

when the clamping assembly is in an open state, the width of the control end gap is smaller than h.

7. The solar cell electroplating apparatus of claim 5 or 6, wherein: the first control end and the first clamping part are positioned on the same side of the second clamping arm along the direction perpendicular to the transmission direction; or, along the direction perpendicular to the conveying direction, the first control end and the first clamping part are arranged on two different sides of the second clamping arm.

8. The solar cell electroplating apparatus of claim 5 or 6, wherein: each group of clamping assemblies comprises an elastic piece for providing a force required by the mutual approaching of the first clamping part and the second clamping part; or alternatively, the first and second heat exchangers may be,

each group of clamping assemblies comprises an elastic piece for providing a force required by the mutual separation of the first clamping part and the second clamping part; or alternatively, the first and second heat exchangers may be,

each clamping assembly comprises a first magnetic piece and a second magnetic piece, the first magnetic pieces are fixedly arranged at the first control end part, the second magnetic pieces are fixedly arranged at the second control end part, and the first magnetic pieces and the second magnetic pieces can be close to each other through magnetic attraction.

9. The solar cell electroplating apparatus of claim 5 or 6, wherein: in each group of clamping assemblies, the first clamping part and the second clamping part are respectively fixedly provided with a bulge, the two bulges are oppositely arranged along the direction perpendicular to the transmission direction, and when the clamping assemblies are in a closed state, the two bulges are mutually abutted; and/or the number of the groups of groups,

In each group of clamping assemblies, one of the first clamping part and the second clamping part is provided with a groove, the other clamping part is fixedly provided with a protrusion, the groove and the protrusion are oppositely arranged along the direction perpendicular to the transmission direction, and when the clamping assemblies are in a closed state, the protrusion is matched and clamped in the groove.

10. The solar cell electroplating apparatus of claim 5, wherein: the transmission mechanism comprises a transmission piece, the transmission piece can move along the transmission direction and transmit the multiple groups of clamping assemblies, and the second control end part of each group of clamping assemblies is fixedly connected with the transmission piece; the opening and closing mechanism is for urging the first control end of the clamping assembly relatively closer to the corresponding second control end at the first position and for urging the first control end of the clamping assembly relatively farther from the corresponding second control end at the second position.

11. The solar cell electroplating apparatus of claim 6, wherein: the transmission mechanism comprises a transmission piece, the transmission piece can move along the transmission direction and transmit the multiple groups of clamping assemblies, and the second control end part of each group of clamping assemblies is fixedly connected with the transmission piece; the opening and closing mechanism is for urging the first control end of the clamping assembly relatively away from the corresponding second control end at the first position and for urging the first control end of the clamping assembly relatively close to the corresponding second control end at the second position.

12. The solar cell electroplating apparatus of claim 5, wherein: the transmission mechanism comprises a transmission piece, the transmission piece can move along the transmission direction and transmit the multiple groups of clamping assemblies, and the second control end part of each group of clamping assemblies is fixedly connected with the transmission piece;

the opening and closing mechanism comprises an opening and closing piece, the opening and closing piece is provided with a first guide section for driving the clamping assembly to be converted from a closed state to an open state, the first guide section extends along the transmission direction and is provided with a leading-in end and a leading-out end which are respectively arranged at two ends with different transmission directions, and the first guide section gradually and obliquely extends from the leading-in end to the leading-out end;

when the first guide section drives the clamping assembly to switch from the closed state to the open state, the first guide section is positioned in the control end gap of the clamping assembly along the direction perpendicular to the transmission direction; when the first control end is matched with the leading-in end, the width of the control end gap is not more than H; when the first control end is matched with the leading-out end, the width of the control end gap is larger than H; when the clamping assembly is transmitted from the leading-in end to the leading-out end, the first control end part abuts against the first guide section and moves along the first guide section;

Along the transmission direction: the lead-out end is located at the first position or the first guide section is located at the second position.

13. The solar cell electroplating apparatus of claim 12, wherein: the opening and closing member further has a second guide section which is connected with the introduction end and extends in a direction opposite to the conveying direction, and when the first control end portion is mated with the second guide section, the width of the control end gap is not greater than H in the direction perpendicular to the conveying direction.

14. The solar cell electroplating apparatus of claim 12, wherein: the opening and closing piece is further provided with a third guide section which is connected with the leading-out end and extends along the transmission direction, and when the first control end part is matched with the third guide section, the width of the gap of the control end is larger than H along the direction perpendicular to the transmission direction; the trailing end of the third guide section is located at the first position along the conveying direction.

15. The solar cell electroplating apparatus of claim 12, wherein: the opening and closing parts are provided with two groups which are arranged at intervals along the transmission direction, the two groups of opening and closing parts are respectively a first opening and closing part and a second opening and closing part, at least part of the first opening and closing part is positioned at the first position, and the first guide section of the second opening and closing part is positioned at the second position.

16. The solar cell electroplating apparatus of claim 12, wherein: along the direction perpendicular to the transmission direction, the both sides of transmission piece are fixedly connected with respectively multiunit clamping assembly, open and shut the piece and have and divide to locate the both sides of transmission piece two sets of, every side open and shut the piece with the homonymy multiunit clamping assembly cooperatees.

17. The solar cell electroplating apparatus of claim 5, wherein: the transmission mechanism comprises a transmission piece, the transmission piece can move along the transmission direction and transmit the multiple groups of clamping assemblies, and the second control end part of each group of clamping assemblies is fixedly connected with the transmission piece;

the opening and closing mechanism comprises an opening and closing piece, the opening and closing piece is provided with a second guide section, a first guide section and a third guide section which extend along the transmission direction and are sequentially connected, and the direction perpendicular to the transmission direction is as follows: the second guide section, the first guide section and the third guide section can be arranged in the control end gap of the clamping assembly in a penetrating manner; when the first control end is mated with the second guide section, the width of the control end gap is no greater than H; when the first control end is matched with the third guide section, the width of the control end gap is larger than H; the first guide section smoothly transitions between the second guide section and the third guide section; the first control end abuts against and moves along the opening and closing member during the transfer of the clamping assembly from the second guide section to the third guide section.

18. The solar cell electroplating apparatus of claim 17, wherein: the second guide section and the first guide section extend along the horizontal direction respectively, and one end part of the third guide section, which is far away from the first guide section, extends along the horizontal direction.

19. The solar cell electroplating apparatus of claim 17, wherein: the conveying member is provided with a curve extending section extending along a curve during the movement of the conveying member along the conveying direction, and part of the third guiding section is parallel to the curve extending section and extends along the curve.

20. The solar cell electroplating apparatus of claim 17, wherein: the transmission mechanism further comprises a first transmission wheel and a second transmission wheel, the first transmission wheel and the second transmission wheel are arranged at intervals along the transmission direction, the first transmission wheel can be arranged around a first rotation center line in a relatively rotating mode, the second transmission wheel can be arranged around a second rotation center line in a relatively rotating mode, the first rotation center line and the second rotation center line are parallel to each other, the transmission piece is an annular belt extending along the transmission direction, the transmission piece is wound and tensioned on the first transmission wheel and the second transmission wheel at the same time, and at least part of the opening and closing piece extends along the circumferential direction of the first transmission wheel and/or the second transmission wheel.

21. The solar cell electroplating apparatus of claim 20, wherein: the first rotation center line and the second rotation center line extend along the horizontal direction respectively, the first position is located below the first driving wheel, the second position is located below the second driving wheel, and the transmission piece is transmitted from the first position to the second position along the horizontal direction.

22. The solar cell electroplating apparatus of claim 21, wherein: the opening and closing piece comprises a first opening and closing piece and a second opening and closing piece,

in the first opening and closing member: the second guide section and the first guide section are both positioned above the first driving wheel and extend along the horizontal direction, part of the third guide section extends along the arc line from top to bottom along the circumferential direction of the first driving wheel, the lower end part of the third guide section extends along the horizontal direction, and the lower end part of the third guide section is positioned at the first position;

in the second shutter: the second guide section and the first guide section are both positioned below the second driving wheel and extend along the horizontal direction, part of the third guide section extends along the arc line from bottom to top along the circumferential direction of the second driving wheel, the upper end part of the third guide section extends along the horizontal direction, and the first guide section is positioned at the second position.

23. The solar cell electroplating apparatus of claim 5, wherein: the transmission mechanism comprises a transmission piece, the transmission piece can move along the transmission direction and transmit the multiple groups of clamping assemblies, and the second control end part of each group of clamping assemblies is fixedly connected with the transmission piece;

the opening and closing mechanism comprises an opening and closing piece, the opening and closing piece and the transmission piece are arranged at intervals along the direction perpendicular to the transmission direction, a guide gap is formed between the opening and closing piece and the transmission piece, the opening and closing piece is provided with a first guide section for driving the clamping assembly to be converted from an open state to a closed state, the first guide section extends along the transmission direction and is provided with a leading-in end and a leading-out end which are respectively arranged at two ends with different transmission directions, the first guide section gradually inclines and extends from the leading-in end to the leading-out end, and the first guide section is positioned at the first position along the transmission direction;

the first control end is positioned in the guide gap along the direction perpendicular to the conveying direction in the process that the first guide section drives the clamping assembly to switch from the open state to the closed state; when the first control end is matched with the leading-in end, the width of the control end gap is larger than H; when the first control end portion is matched with the leading-out end, the width of the gap between the control ends is not larger than H, and when the clamping assembly is transmitted from the leading-in end to the leading-out end, the first control end portion abuts against the first guide section and moves along the first guide section.

24. The solar cell electroplating apparatus of claim 23, wherein: the opening and closing piece is further provided with a second guide section, the second guide section is connected with the leading-out end and extends along the transmission direction, when the first control end part is matched with the second guide section, the first control end part is positioned in the guide gap, and the width of the control end gap is not more than H along the direction perpendicular to the transmission direction.

25. The solar cell electroplating apparatus of claim 24, wherein: the second guide section extends from the first position to the second position, and the first control end is always located in the guide gap and abuts against the second guide section in the process of conveying the clamping assembly from the first position to the second position.

26. The solar cell electroplating apparatus of claim 24, wherein: the opening and closing piece is further provided with a fourth guide section, the first guide section, the second guide section and the fourth guide section are connected in sequence along the transmission direction, and the fourth guide section is positioned at the second position; when the first control end portion is matched with the fourth guide section and moves along the conveying direction, the first control end portion is located in the guide gap, and the width of the control end gap is gradually increased along the direction perpendicular to the conveying direction.

27. The solar cell electroplating apparatus of claim 1, wherein: the transmission mechanism comprises a transmission piece and a supporting piece, wherein the transmission piece can move along the transmission direction and transmit the clamping assembly, and when the transmission piece moves along the transmission direction, the transmission piece is provided with a horizontal extension section extending along the horizontal direction, and the extension direction of the supporting piece is parallel to the horizontal extension section;

each group of clamping assemblies comprises a second clamping arm and a guide piece, the guide piece is connected with the second clamping arm, the second clamping arm is fixedly connected with the transmission piece, and when the clamping assemblies are in transmission along the horizontal extension section, the guide piece can be connected with the support piece in a relative movement manner along the extension direction of the support piece.

28. The solar cell electroplating apparatus of claim 27, wherein: the conveying member has a plurality of discontinuous horizontally extending sections during movement of the conveying member in the conveying direction, and the supporting member has a plurality of groups corresponding to the plurality of horizontally extending sections.

29. The solar cell electroplating apparatus of claim 27, wherein: and the supporting piece and the second clamping arm are respectively arranged on two different sides of the transmission piece along the up-down direction.

30. The solar cell electroplating apparatus of claim 27, wherein: the guide piece comprises a roller, a guide groove is formed in the circumferential direction of the roller, the roller can relatively rotate around the axis of the roller and is connected with the second clamping arm, when the clamping assembly is in the process of conveying along the horizontal extension section, the axis of the roller extends along the upper and lower directions, and at least part of the support piece is clamped in the guide groove and is in rolling fit with the guide groove.

31. The solar cell electroplating apparatus of claim 1, wherein: each group of clamping components comprises a first clamping arm, a second clamping arm, a first connecting rod and a second connecting rod, wherein,

one end part of the first connecting rod is rotationally connected with the first clamping arm, and the other end part of the first connecting rod is rotationally connected with the second clamping arm;

one end part of the second connecting rod is rotationally connected with the first clamping arm, and the other end part of the second connecting rod is rotationally connected with the second clamping arm;

the first clamping part is fixedly arranged on the second connecting rod, and the second clamping part is fixedly arranged on the second clamping arm.

32. The solar cell electroplating apparatus of claim 31, wherein: along the extending direction of the rotation center line of the first connecting rod and the first clamping arm: the first connecting rod is provided with two groups which are respectively arranged at two different sides of the first clamping arm, and the second connecting rod is provided with two groups which are respectively arranged at two different sides of the first clamping arm.