CN116885027A - Battery string preparation method and battery string preparation equipment - Google Patents

Abstract

The present invention relates to the technical field of photovoltaic cell production, and in particular to a battery string preparation method and battery string preparation equipment. In the battery string preparation method provided by this application, the welding ribbon group and the membrane strip are first fixedly connected, and then bonded together on the battery sheet to avoid the phenomenon that the welding ribbon group that is not bonded by the membrane strip is easily deflected or bent. , the pressure component ensures the stability of the connection between the welding ribbon group and the membrane strip. Multiple welding ribbon groups can be laid on the membrane strips at the same time, and the membrane strips with multiple welding ribbon groups can be connected for the first time at the same time, effectively improving the efficiency of the solidification connection; multiple cells can be laid on the membrane strips at the same time. On the conductor component, multiple battery sheets are solidified and connected for a second time, which effectively simplifies the preparation process of the battery string and effectively improves the preparation efficiency of the battery string. The battery string preparation equipment provided by this application also has the above technical effects.

Description

Battery string preparation method and battery string preparation equipment

Technical field

The present invention relates to the technical field of photovoltaic cell production, and in particular to a battery string preparation method and battery string preparation equipment.

Background technique

There are no main grid lines on the front side of the cell sheet that is in back contact with the battery string. The positive electrode row and the negative electrode row of the cell sheet are both arranged on the back side of the cell sheet, thereby reducing the light shading of the cell sheet and improving the light conversion efficiency of the cell sheet. Therefore, back-contacting a string only requires a solder ribbon attached to the back of the string.

Since the welding strips in the back contact battery string are arranged at staggered intervals, the welding strips are located between the adhesive film and the battery sheet. It becomes a technical problem to clamp the welding strips before combining the three. In related technologies, clamping the welding strips is used Position the welding ribbon between the adhesive film and the battery sheet at both ends, and place the adhesive film above the welding ribbon to bond the battery sheet at the bottom. Clamp the head and tail ends of the welding ribbon and simultaneously connect it with the battery sheet and adhesive. The film is bonded, so the welding strip needs to be fixed by the adhesive film before the welding strip can be released.

However, the above method results in that the clamped portion of the soldering ribbon cannot be bonded and fixed to the battery piece by the adhesive film. The portion of the soldering ribbon that is not bonded by the adhesive film is easily deflected and bent, causing the circuit behind the photovoltaic module to be soldered with the ribbon. Bad, and the adhesive film is laid from the top of the welding strip, and the two ends of the welding strip are clamped and fixed. The adhesive film can only be laid in the form of small pieces in the space between the clamping mechanisms, corresponding to the battery pieces one-to-one. , the same adhesive film cannot be bonded across the corresponding ribbons of multiple battery sheets at one time, which increases the complexity of membrane strip processing and placement.

Contents of the invention

This application provides a battery string preparation method and battery string preparation equipment, which can effectively solve the above or other potential technical problems.

The first aspect of this application is to provide a method for preparing a battery string, including:

Lay membrane strips of preset length;

Arrange M welding ribbon groups on the membrane strip in a staggered array;

Use a pressure component to press the top of the welding ribbon group to one side of the membrane strip. At the same time, the membrane strip and the M welding ribbon groups are solidified and connected for the first time. The connected welding ribbon group and the membrane strip form a conductor component;

Lay N battery sheets on the side of the conductor component close to the welding ribbon group, and conduct a second solidification connection between the battery sheets and the conductor component to form a battery string;

Among them, when M≥2, N≥1; when M≥3, N≥2.

The first aspect of the application provides a method for preparing a battery string. M welding ribbon groups are arranged in a staggered array on a membrane strip of a predetermined length, and a pressure component is used to press the top of the welding ribbon group toward one side of the membrane strip. , and at the same time, the conductor component is formed through the first curing connection; then N battery sheets are laid on the side of the conductor component close to the welding ribbon group, and the battery sheets and conductor components are solidified and connected for the second time to form a battery string. In the battery string preparation method provided by this application, the welding ribbon group and the membrane strip are first fixedly connected, and then bonded and fixed together on the battery sheet, which can effectively prevent the welding ribbon group that is not bonded to the membrane strip from easily deflecting and Bending phenomenon, the pressure component further ensures the stability of the connection between the welding ribbon group and the membrane strip. At the same time, multiple welding ribbon groups can be laid on the membrane strips at the same time, and the membrane strips with multiple welding ribbon groups can be solidified and connected for the first time at the same time. The resulting conductor assembly effectively improves the efficiency of the solidification connection; thus, By laying multiple battery sheets on the conductor assembly at the same time, multiple battery sheets can be solidified and connected for the second time at the same time, which effectively simplifies the preparation process of the battery string, thereby effectively improving the preparation efficiency of the battery string.

In an optional embodiment according to the first aspect, the first curing connection and the second curing connection are respectively arranged at a continuous first work station and a second work station, and the first curing is completed at the first work station. After the connection, the conductor component is formed, and the conductor component is transported to the second station for second curing. At the same time, the next set of conductor components is cured on the first station.

In an optional embodiment according to the first aspect, the first curing is conductive heating curing, and the second curing is conductive heating curing and/or infrared heating curing;

The first curing is the instantaneous heating when the welding ribbon group is in contact with the membrane strip, or the first curing is the continuous heating from when the welding ribbon group is in contact with the membrane strip to before the second solidification.

In an optional embodiment according to the first aspect, the pressure component includes a movable presser. The movable presser presses against the welding ribbon group. The movable presser moves with the conductor component. When laying the battery sheet in close proximity, Remove the movable presser from the conductor component, and then lay the battery sheet on the side of the conductor component close to the welding strip.

In an optional embodiment according to the first aspect, the pressure component includes a fixed press, and the fixed press presses the top of the welding ribbon group so that the welding ribbon group is laid flat on the membrane strip, and the battery is laid toward the conductor assembly. Before moving the chip station, remove the fixed presser from the conductor assembly.

The second aspect of the present application also provides a battery string preparation equipment based on the above-mentioned battery string preparation method; the battery string preparation equipment includes a film strip driving mechanism, a belt conveying mechanism, a driving bearing platform, a pressure component, and a first curing part. , the second curing part and the film transport mechanism; the film strip driving mechanism is used to pull the film strips to the driving bearing platform and close to the position corresponding to the belt transport mechanism; the belt transport mechanism is used to grab M welding ribbon groups in a staggered array Arranged on the membrane strip; the pressure component is used to exert pressure on the top of the welding ribbon group; the first curing part is used to connect the membrane strip and M soldering ribbon groups for the first time to solidify to form a conductor assembly; used to drive the bearing platform Before laying, the conductor component is transported to a position close to the sheet transport mechanism; the sheet transport mechanism lays N battery sheets on the side of the conductor component close to the welding strip; the second curing part is used to conduct the second time on the battery sheet and conductor component Cure connections to form battery strings.

Since the battery string preparation equipment provided by this application is based on the above-mentioned battery string preparation method, it also has the above-mentioned ability to effectively prevent the welding ribbon group from being easily deflected and bent in the part that is not bonded by the film strip, further ensuring that the welding ribbon is The stability of the connection between the group and the membrane strip. At the same time, the battery string preparation process is effectively simplified, thereby effectively improving the technical effect of battery string preparation efficiency.

In an optional embodiment according to the second aspect, the tape transport mechanism includes a plurality of clamping hands, two oppositely arranged clamping hands are used to clamp both ends of the same welding ribbon group, and the plurality of clamping hands are used to clamp the M Both ends of the welding ribbon groups are clamped at the same time, and the M welding ribbon groups are staggered and arranged in an array; wherein, the pressure component includes a clamping hand interspersed between two oppositely arranged clamping hands, and each pressure component presses a corresponding Top of two sets of solder ribbons set in a staggered manner.

In an optional embodiment according to the second aspect, the pressure assembly includes a lifting drive mechanism and a pressing tool. The pressing tool is connected to the driving end of the lifting driving mechanism, and the fixed end of the lifting driving mechanism is connected to two opposite clamping hands. among them, the pressing tool elastically presses against the top of the welding ribbon group; the pressing tool is fixedly connected to the lifting drive mechanism so that the pressing tool elastically presses against the top of the welding ribbon group. After the first solidification connection is completed, the clamping hand Release the welding ribbon group, and at the same time, the pressing tool moves in the direction away from the welding ribbon group with the lifting drive mechanism; or, the pressing tool is movably connected to the lifting driving mechanism, and one end of the lifting driving mechanism movablely grabs the pressing tool, and the pressing tool is accompanied by the clamping hand. Lay the welding ribbon group on the surface of the membrane strip. The presser elastically presses the top of the welding ribbon group. The clamping hand releases both ends of the welding ribbon group and moves away from the welding ribbon group. The presser disengages from the lifting drive mechanism and continues to press against the welding ribbon. The top of the group, and with the presser staying on the top surface of the ribbon group, follows the conductor assembly towards the second station.

In an optional embodiment according to the second aspect, the driving carrying platform includes a conveyor belt, and the conveyor belt is used to convey the conductor assembly from the first work station to the second work station at the rear end, so that the first work station can be synchronously moved down. Processing of a set of conductor components.

In an optional embodiment according to the second aspect, the battery string preparation equipment further includes a film supply mechanism, the film strip is wound on the film supply mechanism, and the film strip driving mechanism pulls one end of the film strip under the action of external force, so that The film strips are released from the film supply mechanism and laid on the driving bearing platform, or cut into fixed-length film strips and then transported to the front end of the driving bearing platform by the film transporter.

In an optional embodiment according to the second aspect, the first curing member includes a heating component, which is disposed on the pressure component and/or the driving bearing platform; wherein the heating component is disposed on the driving bearing platform corresponding to the belt conveying mechanism. position, or, the setting of the heating component starts from the position corresponding to the driving bearing platform and the belt conveying mechanism, and ends at the second curing part, which is used to enable the heating component to continuously heat the conductor component; the second curing part is the heating unit, The heating unit is arranged on the driving bearing platform; and/or the second curing element is an infrared heating element, and the infrared heating element is arranged above the driving bearing platform.

In an optional embodiment according to the second aspect, the driving bearing platform is provided with a plurality of adsorption holes, and the adsorption holes are used to adsorb the membrane strips to the driving bearing platform.

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

Description of the drawings

The above and other objects, features and advantages of embodiments of the present invention will become more readily understood by the following detailed description with reference to the accompanying drawings. Various embodiments of the invention will be illustrated by way of example and non-limitingly in the accompanying drawings, in which:

Figure 1 is a partial structural schematic diagram of a battery string preparation equipment including a film transport mechanism provided by an embodiment of the present disclosure;

Figure 2 is a partial structural schematic diagram of the battery string preparation equipment including a pressure component provided by an embodiment of the present disclosure;

Figure 3 is a partial structural schematic diagram of a battery string preparation equipment including a heating component according to an embodiment of the present disclosure;

Figure 4 is a schematic diagram of a battery string prepared by the battery string preparation equipment provided by an embodiment of the present disclosure;

Figure 5 is a partial structural schematic diagram of the battery string preparation equipment including a film supply mechanism provided by an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of the battery string preparation equipment intermittently processing battery strings according to an embodiment of the present disclosure.

Explanation of reference symbols:

10. Battery string preparation equipment; 11. Film strip driving mechanism; 12. Belt transport mechanism; 13. Drive bearing platform; 14. Pressure component; 141. Pressure tool; 15. Heating component; 16. Film transport mechanism; 17. Film supply mechanism; 18. Film cutting mechanism; 19. Tape supply mechanism; 191. Tape cutting mechanism; 21. Film strip; 22. Welding ribbon group; 23. Battery sheets.

Detailed ways

The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and are not to be construed as limiting the present invention.

It should be understood that the following embodiments do not limit the execution order of each step in the method protected by the present invention. The individual steps of the method according to the invention can be carried out in any possible order unless they are inconsistent with each other and can be carried out in a cyclical manner.

In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "back", "vertical", "horizontal", " The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply the following. It is intended that devices or elements must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limitations of the invention.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

In the present invention, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "an example," "specific examples," or "some examples" or the like means that specific features are described in connection with the embodiment or example. , structures, materials or features are included in at least one embodiment or example of the invention. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.

There are no main grid lines on the front side of the cell sheet that is in back contact with the battery string. The positive electrode row and the negative electrode row of the cell sheet are both arranged on the back side of the cell sheet, thereby reducing the light shading of the cell sheet and improving the light conversion efficiency of the cell sheet. Therefore, back-contacting a string only requires a solder ribbon attached to the back of the string. Since the welding strips in the back contact battery string are arranged at staggered intervals, the welding strips are located between the adhesive film and the battery sheet. It becomes a technical problem to clamp the welding strips before combining the three. In related technologies, clamping the welding strips is used Position the welding ribbon between the adhesive film and the battery sheet at both ends, and place the adhesive film above the welding ribbon to bond the battery sheet at the bottom. Clamp the head and tail ends of the welding ribbon and simultaneously connect it with the battery sheet and adhesive. The film is bonded, so the welding strip needs to be fixed by the adhesive film before the welding strip can be released.

However, the above method results in that the clamped portion of the soldering ribbon cannot be bonded and fixed to the battery piece by the adhesive film. The portion of the soldering ribbon that is not bonded by the adhesive film is easily deflected and bent, causing the circuit behind the photovoltaic module to be soldered with the ribbon. Bad, and the adhesive film is laid from the top of the welding strip, and the two ends of the welding strip are clamped and fixed. The adhesive film can only be laid in the form of small pieces in the space between the clamping mechanisms, corresponding to the battery pieces one-to-one. , the same adhesive film cannot be bonded across the corresponding ribbons of multiple battery sheets at one time, which increases the complexity of membrane strip processing and placement.

In view of this, the first aspect of the application provides a method for preparing a battery string. M welding ribbon groups are arranged in a staggered array on a membrane strip of a preset length, and a pressure component is used to press and weld one side of the membrane strip. At the same time, the top of the ribbon group is connected through the first curing process to form a conductor component; then N battery sheets are laid on the side of the conductor component close to the soldering ribbon group, and the battery sheets and conductor components are solidified and connected for the second time to forming a battery string. In the battery string preparation method provided by this application, the welding ribbon group and the membrane strip are first fixedly connected, and then bonded and fixed together on the battery sheet, which can effectively prevent the welding ribbon group that is not bonded to the membrane strip from easily deflecting and Bending phenomenon, the pressure component further ensures the stability of the connection between the welding ribbon group and the membrane strip. At the same time, multiple welding ribbon groups can be laid on the membrane strips at the same time, and the membrane strips with multiple welding ribbon groups can be solidified and connected for the first time at the same time. The resulting conductor assembly effectively improves the efficiency of the solidification connection; thus, By laying multiple battery sheets on the conductor assembly at the same time, multiple battery sheets can be solidified and connected for the second time at the same time, which effectively simplifies the preparation process of the battery string, thereby effectively improving the preparation efficiency of the battery string.

Referring to Figures 1 to 5, the battery string preparation method provided by the embodiment of the present application includes:

Lay membrane strips 21 of preset length;

M welding ribbon groups 22 are arranged in a staggered array on the membrane strip 21;

Use the pressure component 14 to press the top of the welding ribbon group 22 to the side of the membrane strip 21. At the same time, the membrane strip 21 and the M welding ribbon groups 22 are connected for the first time by solidification. The connected welding ribbon group 22 and the membrane Strips 21 constitute the conductor assembly;

Lay N battery sheets 23 on the side of the conductor component close to the welding strip, and perform a second solidification connection between the battery sheets 23 and the conductor component to form a battery string;

Among them, when M≥2, N≥1; when M≥3, N≥2.

It should be noted that in this embodiment, N≥2, that is, the number of battery sheets 23 included in the produced battery string is more than two. It can be understood that the length of the membrane strips 21 of the preset length is It can cover more than two battery sheets 23.

It should also be noted that curing in the first curing and the second curing means fixed connection. During the preparation process of the battery string, the connection is usually heated and solidified.

The battery string preparation method provided by this application is to arrange M welding ribbon groups 22 in a staggered array on a membrane strip 21 of a predetermined length, and use a pressure component 14 to press the welding ribbon group 22 to one side of the membrane strip 21 At the same time, the conductor component is formed through the first curing connection; then N battery sheets 23 are laid on the side of the conductor component close to the welding ribbon group 22, and the battery sheet 23 and the conductor component are solidified and connected for the second time. to form a battery string. In the battery string preparation method provided by this application, the welding ribbon group 22 and the membrane strip 21 are first fixedly connected, and then bonded and fixed on the battery sheet 23 together, which can effectively avoid the welding ribbon group that is not bonded by the membrane strip 21 22 is prone to deflection and bending, the pressure component 14 further ensures the stability of the connection between the welding ribbon group 22 and the membrane strip 21 . At the same time, multiple welding ribbon groups 22 can be laid on the membrane strips 21 at the same time, and the membrane strips 21 with multiple welding ribbon groups 22 can be connected for the first time at the same time to form a conductor assembly that effectively improves the solidification connection. efficiency; then multiple battery sheets 23 are laid on the conductor assembly at the same time, and multiple battery sheets 23 can be solidified and connected for the second time at the same time, which effectively simplifies the preparation process of the battery string, thereby effectively improving the efficiency of the battery string. preparation efficiency.

In an optional exemplary embodiment, the first curing connection and the second curing connection are respectively arranged at a continuous first work station and a second work station. After the first curing connection is completed at the first work station, The conductor component is formed, and the conductor component is transported to the second station for second curing. At the same time, the next set of conductor components is cured on the first station.

It should be noted that, specifically, in this embodiment, the first curing connection and the second curing connection are respectively arranged at the first and second consecutive work stations, and the first curing connection is completed at the first work station. After the connection is cured, the conductor component is formed, and the conductor component is transported to the second station for second curing. At the same time, the next set of conductor components is cured on the first station. With this arrangement, the entire battery string preparation process can be continuously carried out, and multiple battery strings can be prepared synchronously one after another, further improving the battery string preparation efficiency.

In an optional exemplary embodiment, the first curing is conductive heating curing, and the second curing is conductive heating curing and/or infrared heating curing.

It should be noted that the first curing is set to conductive heating curing, and conductive heating is performed on the welding ribbon group 22 and/or the membrane strip 21, so that the welding ribbon group 22 and the membrane strip 21 are fixedly bonded together. The second curing can be conductive heating curing, infrared heating curing, or conductive heating curing and infrared heating curing simultaneously, thereby achieving a fixed connection between the battery piece 23 and the conductor component.

In an optional exemplary embodiment, the first solidification is instantaneous heating when the welding ribbon group 22 contacts the membrane strip 21 .

It should be noted that the first solidification is instantaneous heating when the welding ribbon group 22 and the membrane strip 21 are in contact, that is, the welding ribbon group 22 and the membrane strip 21 are pressed while being heated and solidified to connect.

The first curing may also be continuous heating from when the welding ribbon group 22 is in contact with the membrane strip 21 to before the second curing. That is to say, the welding ribbon group 22 and the membrane strip 21 are in conductive heating for a period of time after contact, which further ensures the stability of the connection between the welding ribbon group 22 and the membrane strip 21 and ensures the quality of the formed battery string.

In an optional exemplary embodiment, the pressure component 14 includes a movable presser 141 which presses against the welding ribbon group 22 . The movable presser 141 moves with the conductor assembly and lays the battery sheet in close proximity. At 23:00, remove the movable presser 141 from the conductor component, and then lay the battery piece 23 on the side of the conductor component close to the welding strip.

It should be noted that, specifically, in this embodiment, the pressure component 14 is set as a movable presser 141, that is, when the pressure component 14 is used to press the welding ribbon group 22, the movable presser 141 is pressed against the welding ribbon group 22. Press on the welding ribbon group 22, the movable presser 141 moves with the conductor assembly. When laying the battery sheet 23 next to it, remove the movable presser 141 from the conductor component, and then lay the battery sheet 23 on the conductor component close to the welding assembly. side of the belt. With this arrangement, the movable pressure tool 141 can exert pressure on the welding ribbon group 22 for a longer period of time, thereby ensuring the stability of the connection between the welding ribbon group 22 and the membrane strip 21 and thus ensuring the quality of the formed battery string.

Specifically, in the process of using the movable presser 141, when laying the battery sheets 23 immediately, the movable presser 141 is removed from the conductor assembly, and the removed movable presser 141 is transported to a location close to the first workstation. location for subsequent recycling.

In an optional exemplary embodiment, the pressure component 14 includes a fixed presser 141, which presses the top of the welding ribbon group 22 so that the welding ribbon group 22 is laid flat on the membrane strip 21, and the conductor assembly is Before moving to the work station where the battery sheets 23 are laid, the fixed pressing tool 141 is removed from the conductor assembly.

It should be noted that, specifically, in this embodiment, the pressure component 14 is set as a fixed press 141, and the fixed press 141 presses the top of the welding ribbon group 22 so that the welding ribbon group 22 is laid flat on the membrane strip. 21, before the conductor assembly moves to the station where the battery sheets 23 are laid, the fixed presser 141 is removed from the conductor assembly. Such an arrangement can make the pressure operation of the pressure application assembly 14 simpler. Compared with the movable pressure tool 141 , there is no need to remove the pressure tool 141 at a later stage.

This application also provides a battery string preparation equipment 10 based on the above-mentioned battery string preparation method; the battery string preparation equipment 10 includes a film strip driving mechanism 11, a belt conveying mechanism 12, a driving bearing platform 13, a pressure component 14, a first The curing part, the second curing part and the film transport mechanism 16; the film strip driving mechanism 11 is used to pull the film strip 21 to the driving bearing platform 13 and close to the position corresponding to the belt conveying mechanism 12; the belt conveying mechanism 12 is used to grab M welding ribbon groups 22 are arranged in a staggered array on the membrane strip 21; the pressure component 14 is used to apply pressure on the top of the welding ribbon group 22; the first curing member is used to perform the sealing process between the membrane strip 21 and the M welding ribbon groups 22. The first solidification connection forms a conductor component; the driving bearing platform 13 is used to transport the laying conductor component to a position close to the sheet transport mechanism 16; the sheet transport mechanism 16 lays N battery sheets 23 on a side of the conductor component close to the welding strip. side; the second curing part is used for the second curing connection of the battery sheet 23 and the conductor assembly to form a battery string.

It should be noted that the M welding ribbon groups 22 are arranged in a staggered array on the membrane strip 21 in such a manner that two adjacent welding ribbon groups 22 are staggered by a preset distance in the length direction of the welding ribbon, and are adjacent to each other. The two welding ribbon groups 22 are staggered in the width direction of the welding ribbon.

Since the battery string preparation equipment 10 provided by this application is based on the above-mentioned battery string preparation method, it also has the above-mentioned ability to effectively avoid the phenomenon that the welding ribbon group 22 that is not bonded by the membrane strip 21 is easily deflected or bent, further ensuring that This ensures the stability of the connection between the welding ribbon group 22 and the membrane strip 21. At the same time, the battery string preparation process is effectively simplified, thereby effectively improving the technical effect of battery string preparation efficiency.

In an optional exemplary embodiment, the belt conveying mechanism 12 includes a plurality of clamping hands, two oppositely arranged clamping hands are used to clamp both ends of the same welding ribbon group 22, and the plurality of clamping hands are used to clamp M pieces of welding ribbons. Both ends of the welding ribbon group 22 are clamped at the same time, and the M welding ribbon groups 22 are staggered and arranged in an array;

The pressure component 14 is interspersed between two opposite clamping hands, and each pressure component 14 presses the tops of the two staggered sets of welding ribbon groups 22 .

It should be noted that, specifically, in this embodiment, the belt conveying mechanism 12 is configured to include multiple clamping hands. Two opposite clamping hands are used to clamp both ends of the same welding ribbon group 22. The clamping hand is used to clamp both ends of the M welding ribbon groups 22 at the same time, and to arrange the M welding ribbon groups 22 in a staggered array, so that the ribbon transport mechanism 12 can clamp multiple welding ribbon groups 22 at the same time, and M welding ribbon groups 22 are laid on the membrane strip 21 in a staggered array.

In an optional exemplary embodiment, the pressure assembly 14 includes a lifting drive mechanism and a pressing tool 141. The pressing tool 141 is connected to the driving end of the lifting driving mechanism, and the fixed end of the lifting driving mechanism is connected to two opposite clamping hands. among them, the pressing tool 141 elastically presses against the top of the welding ribbon group 22 .

In this embodiment, the pressure component 14 is configured to include a lifting driving mechanism and a pressing tool 141. The pressing tool 141 is connected to the driving end of the lifting driving mechanism, and the fixed end of the lifting driving mechanism is connected to two opposite clamping hands. time; the lifting drive mechanism drives the press 141 to press the welding ribbon group 22 in a preset direction, and the press 141 elastically presses against the top of the welding ribbon group 22, thereby effectively protecting the welding ribbon group 22 and effectively avoiding pressure. The tool 141 pressure-damages the welding ribbon group 22 and the membrane strip 21. At the same time, the elastic pressure can utilize the elastic pre-tightening force to further ensure the stability and compliance of the connection between the welding ribbon group 22 and the membrane strip 21.

Among them, there are two ways of connecting the pressing tool 141 and the lifting drive mechanism, one is a fixed connection, and the other is a movable connection.

In this embodiment, the pressing tool 141 and the lifting drive mechanism may be fixedly connected, so that the pressing tool 141 elastically presses the top of the welding ribbon group 22. After the first solidification connection is completed, the clamping hand releases the welding ribbon group 22. At the same time, the pressure tool 141 moves in the direction away from the welding ribbon group 22 with the lifting drive mechanism. That is, the pressure tool 141 exerts relatively short pressure on the welding ribbon group 22. After the pressure is applied, the pressure tool 141 moves along with the welding ribbon group 22. The lifting drive mechanism moves in a direction away from the welding ribbon group 22 so as to exert pressure on the subsequent welding ribbon group 22 .

In this embodiment, the press 141 and the lifting drive mechanism can also be movablely connected. One end of the lifting drive mechanism can movable grab the press 141, and the press 141, along with the clamping hand, lays the welding ribbon group 22 on the surface of the membrane strip 21. The pressing tool 141 elastically presses the top of the welding ribbon group 22, and the clamping hand releases both ends of the welding ribbon group 22 and moves away from the welding ribbon group 22. The pressing tool 141 separates from the lifting drive mechanism and continues to press against the top of the welding ribbon group 22, and As the presser 141 stays on the top surface of the welding ribbon group 22, it follows the conductor assembly and moves toward the second station. That is, the presser 141 along with the clamping hand lays the welding ribbon group 22 on the surface of the membrane strip 21, and when the clamping hand releases both ends of the welding ribbon group 22 and moves away from the welding ribbon group 22, the presser 141 is separated from the lifting drive mechanism. , and continues to press against the top of the welding ribbon group 22, and as the pressure tool 141 stays on the top surface of the welding ribbon group 22, it follows the conductor assembly to move toward the second station, so that the pressure tool 141 can continue to press and weld. The ribbon set 22 ensures the stability of the connection between the welding ribbon set 22 and the membrane strip 21 .

In an optional exemplary embodiment, the battery string preparation equipment 10 further includes a film supply mechanism 17 on which the film strip 21 is wound. The film strip driving mechanism 11 pulls one end of the film strip 21 under the action of external force. , so that the film strip 21 is released from the film supply mechanism 17 and laid on the driving bearing platform 13, or the film strip 21 is cut into a fixed length and then transported to the front end of the driving bearing platform 13 by a film transporter.

It should be noted that, specifically, in this embodiment, the film supply mechanism 17 is used to provide the film strip 21. The film strip 21 is wound on the film supply mechanism 17, and the film strip driving mechanism 11 pulls one end of the film strip 21. Under the action of external force, the film strip 21 is released from the film supply mechanism 17 and laid on the driving bearing platform 13, or the film strip 21 is cut into a fixed length and then transported to the front end of the driving bearing platform 13 by the film transporter, and then The automatic supply of the membrane strip 21 is ensured, and the membrane strip 21 can be laid on the driving bearing platform 13 easily.

In an optional exemplary embodiment, the first curing member includes a heating component 15 , and the heating component 15 is disposed on the pressure component 14 and/or the driving bearing platform 13 . That is, the heating component 15 can be disposed on the pressure component 14 , the driving bearing platform 13 , or the heating component 15 can be disposed on both.

In this embodiment, specifically, the heating component 15 is disposed at a position corresponding to the driving support platform 13 and the belt conveying mechanism 12, which is to facilitate relatively short-term heating.

It is also possible to arrange the heating component 15 starting from a position corresponding to the driving bearing platform 13 and the tape transport mechanism 12 and ending at the second curing member, so that the heating component 15 can continue to heat the conductor component. This achieves heating for a relatively long period of time, thereby ensuring the stability of the connection between the welding ribbon group 22 and the membrane strip 21 .

In this embodiment, the second curing element is a heating unit, and the heating unit is disposed on the driving bearing platform 13 . That is to say, the heating unit is arranged at the second station to realize the connection between the battery piece 23 and the conductor assembly.

And/or, the second curing element is set as an infrared heating element, and the infrared heating element is arranged above the driving bearing platform 13, and then heats through one side of the battery sheet 23, thereby achieving the integration of the battery sheet 23 and the conductor assembly. Connection.

In an optional exemplary embodiment, the drive carrying platform 13 includes a conveyor belt, which is used to convey the conductor assembly from the first station to the second station at the rear end, so that the first station synchronizes the next set of Processing of conductor components.

It should be noted that the driving bearing platform includes a conveyor belt, and the conveyor belt is used to convey the conductor assembly from the first work station to the second work station at the rear end, so that the first work station can synchronize the processing of the next group of conductor assemblies. It can be used to transport the conductor components from the first work station to the second work station at the rear end, so that the first work station can synchronize the processing of the next group of conductor components. This effectively improves the production efficiency of battery strings.

In an optional exemplary embodiment, the driving carrying platform 13 may also be a movable platform, used to transport the conductor assembly placed on the movable platform from the first work station to the second work station at the rear end, so as to The first station is synchronized to process the next set of conductor components. This effectively improves the production efficiency of battery strings.

The driving bearing platform 13 is provided with a plurality of adsorption holes, and the adsorption holes are used to adsorb the membrane strip 21 to the driving bearing platform 13 .

It should be noted that, specifically, in this embodiment, a plurality of adsorption holes are provided on the driving bearing platform 13, and the adsorption holes are used to cause the membrane strip 21 to be adsorbed on the driving bearing platform 13, thereby effectively preventing the membrane strip 21 from attaching to the driving bearing platform 13. The phenomenon of wrinkles during transportation ensures the flatness of the membrane strip 21 and the accuracy of the position of the membrane strip 21, thereby allowing the welding ribbon group 22 to be laid at the corresponding position, further ensuring that the prepared The quality of the battery string.

In an optional exemplary embodiment, the battery string preparation equipment 10 also includes a film cutting mechanism 18. The film cutting mechanism 18 is used to cut the film strip driving mechanism 11 to the film strip 21 of a preset length, and then cut it. The membrane strip 21 laid on the driving bearing platform 13 is made to have a preset length.

In an optional exemplary embodiment, the battery string preparation equipment 10 also includes a tape supply mechanism 19 and a tape cutting mechanism 191. The tape supply mechanism 19 is used to supply the welding ribbon group 22, and the tape cutting mechanism 191 is used to cut the welding ribbon group 22 according to the Cut the preset long segments.

In order to further clearly understand the battery string preparation equipment 10 provided by this application, its usage principle is now described as follows:

In this embodiment, the film strip driving mechanism 11 pulls the end of the film strip 21 to the first station of the front end of the drive bearing platform 13 , and the film cutting mechanism 18 cuts the film strip 21 into one or more sections. One section of the film strip 21 At least three sets of staggered welding sections are covered, and at least two battery sheets 23 can be covered at the same time; the film cutting mechanism 18 cuts the tail of the film strip 21, and the film strip 21 is adsorbed and fixed on the surface of the driving bearing platform 13, and the belt conveying mechanism 12 will The welding ribbon group 22 is transported to the upper part of the membrane strip 21 in the first processing position, and is attached to the upper surface of the membrane strip 21; while the welding ribbon group 22 is in contact with the membrane strip 21, the pressure of the pressure component 14 is pressed against the welding ribbon group At the top of 22, the welding ribbon group 22 or the membrane strip 21 is heated, so that the welding ribbon group 22 and the membrane strip 21 are bonded and firmly connected. Among them, the welding ribbon groups 22 transported by the ribbon conveying mechanism 12 are at least three groups along the welding ribbon group 22 The welding ribbon groups 22 are arranged staggered in the length direction; and then the bonded welding ribbon group 22 and film strips 21 at the first station are transferred to the second station at the rear end through the driving carrying platform 13, and are transferred to the second station at the rear end. At least two battery slices 23 are placed above the soldering ribbon group 22 at a time. Each battery slice 23 is connected to at least two sets of interleaved soldering ribbon groups 22. The positive and negative electrodes of the two adjacent battery slices 23 are connected in series. The battery slices 23 While in contact with the welding ribbon group 22 and the membrane strip 21 , the membrane strip 21 or the battery sheet 23 is heated, so that the membrane strip 21 and the bottom surface of the battery sheet 23 are bonded and fixed, so that the welding ribbon group 22 is adhered and positioned on the battery sheet 23 and between the membrane strips 21, so that at least two battery sheets 23 are connected in series by bonding the welding ribbon groups 22 through the membrane strips 21 to form a battery string.

It should also be noted that the heating component 15 provided on the driving bearing platform 13 can be turned on in advance, so that the membrane strip 21 can be preheated into a glued state. When the welding ribbon group 22 is placed on the membrane strip 21, it can be bonding. This further improves the connection efficiency between the welding ribbon group 22 and the membrane strip 21 .

In this embodiment, the laying of the membrane strips 21 and the laying of the welding strip groups 22 may be carried out continuously as above, or may be carried out intermittently.

That is to say, in this embodiment, the membrane strip 21 is pulled to the front end of the driving bearing platform 13. The driving bearing platform 13 is provided with a heating element. Each time the welding ribbon group 22 is placed, a movable one is placed on the welding ribbon group 22. Each time the presser 141 and the membrane strip 21 move forward by one position of the movable presser 141, the belt transport mechanism 12 pulls a group of welding strips behind it. Processing is done group by group.

Specifically, as shown in FIG. 6 , the welding ribbon group 22 located at the head end of the membrane strip 21 is simultaneously clamped by the ribbon transport mechanism 12 to grasp the first group of welding ribbon groups 22 and the second group of welding ribbon groups 22 that are staggered at the ends, and then Place the pressure tool 141 on one side of the front end of the belt conveying mechanism 12. After the pressure tool 141 is placed, the belt conveying mechanism 12 is released, and the bearing platform 13 is driven to transport a station of the pressure tool 141 backwards. Then the belt conveying mechanism 12 pulls the third The ends of the welding ribbon groups 22 are placed at equal intervals at the tail end of the first welding ribbon group 22, so that the first half of the third welding ribbon group 22 and the second half of the second welding ribbon group 22 are arranged at staggered intervals, and then Place the second presser 141 on the front half of the third group of welding ribbons 22 and the second half of the second group of welding ribbons 22. According to this rule, taking the laying of five groups of welding ribbons 22 as an example, the third group of welding ribbons 22 are laid continuously. When there are four sets of welding ribbon groups 22, the presser 141 placed for the first time can be moved away from the top of the welding ribbon group 22, the driving platform 13 continues to move forward by one station of the presser 141, and the belt conveying mechanism 12 continues to pull the fifth Assemble the welding ribbon group 22, place the battery sheets 23 on the welding ribbon group 22 and the membrane strip 21 after being removed from the press 141, so as to continue to transport backwards, continuously remove the press 141 on the welding ribbon group 22 and continuously place them The battery sheet 23 completes the series connection of the battery strings.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or to equivalently replace some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. .

In addition, it should be noted that the specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner as long as there is no contradiction. In order to avoid unnecessary repetition, various possible combinations are not further described in the present invention.

Claims (12)

1. A method for preparing a battery string, characterized in that it includes: Lay membrane strips of preset length; M welding ribbon groups are arranged in a staggered array on the membrane strip; Use a pressure component to press the top of the welding strip group to one side of the membrane strip. At the same time, the membrane strip and the M welding strip groups are solidified and connected for the first time. The welding strips connected together are The strip group and the membrane strip constitute a conductor component; Lay N battery sheets on the side of the conductor component close to the welding ribbon group, and conduct a second solidification connection between the battery sheets and the conductor component to form a battery string; Among them, when M≥2, N≥1; when M≥3, N≥2. 2. The method for preparing a battery string according to claim 1, wherein the first curing connection and the second curing connection are respectively arranged at a continuous first working station and a second working station. After the first curing connection is completed at the work station, the conductor assembly is formed, and the conductor assembly is transported to the second work station for the second curing. At the same time, the next set of conductor assemblies is processed at the first work station. of curing. 3. The method for preparing a battery string according to claim 1, wherein the first curing is conductive heating curing, and the second curing is conductive heating curing and/or infrared heating curing; The first curing is the instantaneous heating when the welding ribbon group is in contact with the membrane strip, or the first curing is the second time when the welding ribbon group is in contact with the membrane strip. Continuous heating before curing. 4. The method of preparing a battery string according to claim 1, wherein the pressure component includes a movable press, and the movable press presses against the welding ribbon group, and the movable press The press tool moves with the conductor component. When laying the battery sheet immediately, the movable press tool is removed from the conductor component, and then the battery sheet is laid on the conductor component close to the welding component. One side of the belt group. 5. The method of preparing a battery string according to claim 1, wherein the pressure component includes a fixed press, and the fixed press presses the top of the welding strip group so that the welding strip The group is laid flat on the membrane strip, and before the conductor assembly moves to the station where the battery sheet is laid, the fixed pressing tool is removed from the conductor assembly. 6. A battery string preparation equipment, characterized in that it is based on the battery string preparation method according to any one of claims 1 to 5; the battery string preparation equipment includes a film strip driving mechanism, a belt conveying mechanism, and a driving bearing platform. , pressure component, first curing part, second curing part and film transport mechanism; The film strip driving mechanism is used to pull the film strip to the driving bearing platform and close to the position corresponding to the belt conveying mechanism; The tape transport mechanism is used to grab M welding tape groups and arrange them in an array on the membrane strip; The pressure component is used to apply pressure on the top of the welding ribbon group; The first curing part is used to solidify and connect the membrane strip and the M solder ribbon groups for the first time to form the conductor assembly; The driving carrying platform is used to transport the conductor assembly to a position close to the sheet transport mechanism; The sheet transporting mechanism lays N battery sheets on the side of the conductor assembly close to the welding ribbon group; The second curing part is used to perform a second curing connection between the battery sheet and the conductor assembly to form a battery string. 7. The battery string preparation equipment according to claim 6, characterized in that the strap conveying mechanism includes a plurality of clamping hands, two opposite clamping hands are used to clamp both ends of the same welding ribbon group, and the plurality of clamping hands are used to clamp two ends of the same welding ribbon group. The clamping hands are used to clamp both ends of the M soldering ribbon groups at the same time, and make the M soldering ribbon groups arranged in a staggered array; Wherein, the pressure-applying component includes an interspersed arrangement between two clamping hands arranged oppositely, and each of the pressure-applying components corresponds to pressing the tops of two sets of staggered welding ribbon groups. 8. The battery string preparation equipment according to claim 7, wherein the pressure component includes a lifting drive mechanism and a pressing tool, the pressing tool is connected to the driving end of the lifting driving mechanism, and the lifting driving mechanism The fixed end of the mechanism is connected between the two clamping hands arranged oppositely; wherein, the presser elastically presses against the top of the welding ribbon group; The presser is fixedly connected to the lifting drive mechanism, so that the presser elastically presses against the top of the welding ribbon group. After completing the first solidification connection, the clamping hand releases the welding ribbon group, and at the same time, The press tool moves in a direction away from the welding ribbon group along with the lifting drive mechanism; or, The press is movably connected to the lifting drive mechanism. One end of the lifting drive mechanism movablely grasps the press, and the press along with the clamping hand lays the welding ribbon group on the membrane strip. On the surface, the presser elastically presses the top of the welding ribbon group, and the clamping hand releases the two ends of the welding ribbon group and moves away from the welding ribbon group. The presser is separated from the lifting drive mechanism and continues to press against the welding ribbon group. The top of the welding strip group, and as the presser stays on the top surface of the welding ribbon group, follows the conductor assembly toward the second station. 9. The battery string preparation equipment according to claim 6, characterized in that the driving carrying platform includes a conveyor belt, the conveyor belt is used to convey the conductor assembly from the first work station to the second work station at the rear end. position, so that the first station can synchronize the processing of the next set of conductor components. 10. The battery string preparation equipment according to claim 6, further comprising a film supply mechanism, the film strip is wound on the film supply mechanism, and the film strip driving mechanism pulls the film strip. One end, under the action of external force, is used to release the film strip from the film supply mechanism and lay it on the driving bearing platform, or to cut the film strip into a fixed length and then be transported to the driving bearing platform by the film transporter. Front end. 11. The battery string preparation equipment according to claim 6, wherein the first curing member includes a heating component, and the heating component is disposed on the pressure component and/or the driving bearing platform; wherein , the heating component is arranged at a position corresponding to the driving bearing platform and the belt conveying mechanism, or the setting of the heating component starts from a position corresponding to the driving bearing platform and the belt conveying mechanism, and ends at The second curing part is used to make the heating component continue to heat the conductor component; The second curing part is a heating unit, and the heating unit is disposed on the driving bearing platform; and/or the second curing part is an infrared heating part, and the infrared heating part is disposed on a position corresponding to the driving Above the bearing platform. 12. The battery string preparation equipment according to claim 6, wherein the driving bearing platform is provided with a plurality of adsorption holes, and the adsorption holes are used to adsorb the membrane strips to the driving bearing platform. .