Soldering flux coating mechanism and battery string repairing device
Through the combined structure of the coating pen and rotary bracket, the problem of low coating accuracy and waste of dummy welding tape on the back of the battery string is solved, and the precise point coating and flux savings are achieved, and the coating efficiency and accuracy are improved.
Patent Information
- Application Number
- CN202422213871.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-10
AI Technical Summary
In the prior art, the flux coating of the dummy welding tape on the back of the battery string has problems of low accuracy and serious waste.
Using a combined structure of a coating pen and a rotary bracket, the rotation bracket switches between the coating position and the withdrawal position, combined with an independent lifting drive member, accurately point coating on the back of the battery string is achieved. The coated pen avoids the battery string when avoiding the allowance, ensuring the coating accuracy, and preventing the coating pen from drying through the buffer connection assembly.
Accurate coating of the dummy welding tape on the back of the battery string is achieved, reducing the use of flux, avoiding contamination of other welding tapes, and improving coating efficiency and accuracy.
Smart Images
Figure CN223172211U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of photovoltaic cell production equipment. Specifically, the present application relates to a flux coating mechanism and a battery string repair device. Background Art
[0002] When there is a loose solder joint on the lower surface of the battery string, it is necessary to repair and weld the loose solder tape on the back of the battery string. To ensure the welding effect, before welding, it is necessary to coat the flux on the loose solder tape to be welded.
[0003] Currently, for the flux coating of the loose solder tape on the back of the battery string, generally, a nozzle is used to spray the flux onto the loose solder tape. The main problem with using the spraying method to coat the flux is that it is impossible to accurately coat the flux, resulting in waste of flux. Summary of the Utility Model
[0004] In order to solve the above technical problems, the present application provides a flux coating mechanism, and its detailed technical solution is as follows:
[0005] A flux coating mechanism includes a mounting bracket, a rotating bracket, a rotating drive part, N coating pens, and a lifting drive part, where:
[0006] The rotating bracket is rotatably connected to the mounting bracket and is in transmission connection with the rotating drive part arranged on the mounting bracket. The N coating pens are arranged side by side on the rotating bracket, and each coating pen is used to coat one solder tape on the back of the battery string each time.
[0007] The rotating drive part is configured to drive the rotating bracket to rotate vertically to drive the rotating bracket to switch between a coating position and an avoidance position.
[0008] When the rotating bracket rotates upward to the coating position, the coating ends of the N coating pens all face upward. The lifting drive part is configured to independently drive each coating pen to rise, so that the coating end of the driven coating pen contacts the corresponding solder tape, and the coating pen is configured to coat the flux on the corresponding solder tape.
[0009] When the rotating bracket rotates downward to the avoidance position, the coating ends of the N coating pens incline downward.
[0010] N≥2.
[0011] The flux coating mechanism provided by the present application adopts a coating pen to apply flux to the cold solder strip on the back of the battery string, which can realize spot coating of the cold solder strip. Compared with the spraying method, the coating accuracy is higher and the amount of flux used is more economical. At the same time, each coating pen can realize rotation switching between the avoidance position and the coating position under the drive of the rotating bracket, and can be independently lifted and lowered. When flux coating is required for the battery string, each coating pen first rotates and switches to the avoidance position to avoid the battery string so that the battery string can be smoothly moved above each coating pen. After the battery string moves into place, each coating pen rotates and switches to the coating position again. The coating pen corresponding to the cold solder strip rises to implement targeted coating, while the other coating pens are all away from the corresponding solder strip. In this way, accurate spot coating of the cold solder strip is achieved, avoiding contamination of other solder strips.
[0012] In some embodiments, N coating pens are slidably mounted on a rotating bracket, and the lifting drive unit includes N lifting drive members corresponding one to one to the coating pens, wherein: the N lifting drive members are arranged side by side on the rotating bracket, and each coating pen is connected to the driving end of the corresponding lifting drive member. When the rotating bracket rotates upward to the coating position, each lifting drive member is used to drive the corresponding coating pen to rise.
[0013] Each coating pen is independently driven by an independent lifting drive member, ensuring that each coating pen can be independently lifted and lowered to implement targeted coating of the corresponding solder strip.
[0014] In some embodiments, N coating pens are all slidably connected to the rotating bracket, and the lifting drive unit includes N lifting drive members corresponding one to one to the coating pens, wherein: the N lifting drive members are arranged side by side on the mounting bracket, and when the rotating bracket rotates upward to the coating position, each coating pen rotates to above the corresponding lifting drive member, and the driving end of each lifting drive member is used to extend and push the corresponding coating pen to drive the corresponding coating pen to rise.
[0015] Each coating pen is independently driven by a separate lift drive, ensuring it can be raised and lowered independently to coat the corresponding ribbon. Furthermore, the lift drive is mounted on the mounting bracket and does not rotate with the rotating bracket. This prevents the lift drive's cables or piping from interfering with adjacent components during rotation, potentially causing the rotating bracket to stall.
[0016] In some embodiments, each coating pen is slidably mounted on the rotating bracket via a buffer connection assembly, and the buffer connection assembly is configured to be elastically retractable in the length direction of the coating pen.
[0017] By providing the buffer connection assembly, after the driving end of the lifting drive member is separated from the coating pen, the coating pen can automatically return to its original position under the rebound action of the buffer connection assembly.
[0018] In some embodiments, N guiding through holes corresponding to the coating pens one by one are provided on the rotating bracket, and the guiding through holes are arranged along the length direction of the coating pens; the buffer connection assembly at least includes a guiding sleeve and a first spring, wherein: the guiding sleeve is slidably connected in the guiding through hole, the coating pen is installed in the guiding sleeve, and the coating end of the coating pen extends out of the guiding through hole; the first spring is sleeved on the guiding sleeve; the first end of the first spring abuts against the inner wall of the guiding through hole, and the second end of the first spring abuts against the guiding sleeve; the driving end of the lifting driving member is used to extend out and abut against the guiding sleeve of the corresponding coating pen. When the guiding sleeve slides upward along the guiding through hole, the first spring is compressed and contracted; when the driving end of the lifting driving member disengages from the corresponding guiding sleeve, the first spring decompresses and rebounds to push the guiding sleeve to slide and reset along the guiding through hole.
[0019] A specific setting structure of the buffer connection assembly is provided. By setting the buffer connection assembly to include a guiding sleeve and a first spring, when the driving end of the lifting driving member extends out and pushes the guiding sleeve to rise, the first spring is compressed and contracted, and the coating pen contacts the solder tape to apply the flux; after the flux application is completed, when the driving end of the lifting driving member retracts and disengages from the guiding sleeve, the first spring can push the guiding sleeve to slide and reset along the guiding through hole, so that the coating end of the coating pen disengages from the corresponding solder tape and automatically returns to its original position.
[0020] In some embodiments, the buffer connection assembly further includes a second spring. The coating pen slidably passes through the guiding sleeve, the second spring is sleeved on the coating pen, the first end of the second spring abuts against the coating pen, and the second end of the second spring abuts against the guiding sleeve; when the lifting driving member drives the guiding sleeve to slide upward to drive the coating pen to rise, when the coating end of the coating pen abuts against the corresponding solder tape, the second spring is compressed and contracted; when the coating end of the coating pen disengages from the corresponding solder tape, the second spring decompresses and rebounds.
[0021] By setting the second spring, the coating pen can elastically retract after contacting the corresponding solder tape, reducing the pressure of the coating pen on the battery cell. In addition, after the flux application is completed, the second spring can push the coating pen to slide and reset along the guiding sleeve.
[0022] In some embodiments, a first waist-shaped hole extending along the length direction of the coating pen is provided on the guiding sleeve; the buffer connection assembly further includes a limit bolt installed on the rotating bracket, and the limit bolt is inserted into the first waist-shaped hole and can slide along the first waist-shaped hole.
[0023] The limit bolt and the first waist-shaped hole realize the lifting guidance of the guiding sleeve, preventing the guiding sleeve from generating axial rotation relative to the rotating bracket during the lifting process.
[0024] In some embodiments, a second waist-shaped hole penetrating the coating pen and extending along the length direction of the coating pen is provided on the coating pen; the buffer connection assembly further includes a limiting shaft, the limiting shaft passes through the second waist-shaped hole and can slide along the second waist-shaped hole, and both ends of the limiting shaft are fixedly connected to the guide sleeve.
[0025] The limiting shaft and the second waist-shaped hole realize the lifting guidance of the coating pen, and prevent the coating pen from rotating axially relative to the guide sleeve during the lifting process.
[0026] In some embodiments, the rotating bracket includes a connecting frame and a guide plate, wherein: the connecting frame is rotatably connected to the mounting bracket and is in transmission connection with a rotation driving part arranged on the mounting bracket, the guide plate is detachably mounted on the connecting frame, and N coating pens are slidably connected to the guide plate; N lifting driving parts are arranged on the mounting bracket with adjustable positions.
[0027] By setting the rotating bracket into a split structure composed of a connecting frame and a guide plate, it is convenient to disassemble and assemble the coating pen. The lifting driving parts are arranged on the mounting bracket with adjustable positions, so that the coating pens mounted on the guide plate at different intervals can be compatible.
[0028] In some embodiments, the flux coating mechanism further includes a translation driving part, the mounting bracket is connected to the moving part of the translation driving part, and the translation driving part is used to drive the mounting bracket to translate.
[0029] By driving the mounting bracket to translate through the translation driving part, it can be ensured that each coating pen can move to align with the corresponding solder strip. In addition, through the driving of the translation driving part, the coating pen can move along the length direction of the solder strip during the coating process, so as to complete the flux coating of all the defective soldering positions of the solder strip.
[0030] The present application also provides a battery string repair device, which includes the flux coating mechanism, a handling mechanism, a repair platform and a welding mechanism described in any one of the above, wherein: the handling mechanism is used to carry the battery string to be repaired above the flux coating mechanism, and there are defective soldering solder strips on the back of the battery string to be repaired; the flux coating mechanism is used to coat the flux on the defective soldering solder strips; the handling mechanism is also used to carry the battery string to be repaired with the flux coated to the repair platform; the welding mechanism is used to re-weld the defective soldering solder strips coated with the flux to the corresponding battery cells.
[0031] Through the cooperation of the flux coating mechanism, the handling mechanism, the repair platform and the welding mechanism, the battery string repair device provided by the present application realizes the automatic repair of the battery string with defective soldering solder strips on the back. Description of the Drawings
[0032] Figure 1 It is a schematic structural diagram of the flux coating mechanism in an embodiment of the present application from one perspective;
[0033] Figure 2 This is a schematic structural diagram of the soldering flux coating mechanism in an embodiment of the present application from another perspective;
[0034] Figure 3 It is Figure 2 the A-A sectional view of;
[0035] Figure 4 This is a schematic structural diagram of the coating pen and the buffer connection component in an embodiment of the present application from one perspective;
[0036] Figure 5 This is a schematic structural diagram of the coating pen and the buffer connection component in an embodiment of the present application from another perspective;
[0037] Figure 6 It is Figure 5 the B-B sectional view of;
[0038] Figure 7 This is a schematic structural diagram of the soldering flux coating mechanism in another embodiment of the present application;
[0039] Figures 1 to 7 It includes:
[0040] Mounting bracket 1; [[ID=……]]
[0041] Rotating bracket 2: connecting frame 21, guiding plate 22;
[0042] Rotating drive part 3;
[0043] Coating pen 4;
[0044] Lifting drive member 5;
[0045] Buffer connection component 6: guiding sleeve 61, first spring 62, second spring 63, first waist-shaped hole 64, limit bolt 65, second waist-shaped hole 66, limit shaft 67, first limit step 68, second limit step 69;
[0046] Translation drive part 7: X-axis drive module 71, Y-axis drive module 72. Detailed implementation manners
[0047] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present disclosure.
[0048] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present disclosure.
[0049] As Figures 1 to 2 shown, the flux coating mechanism in the embodiment of the present application includes a mounting bracket 1, a rotating bracket 2, a rotation driving part 3, N coating pens 4 and a lifting driving part, where:
[0050] The rotating bracket 2 is rotatably connected to the mounting bracket 1 and is in transmission connection with the rotation driving part 3 arranged on the mounting bracket 1. The N coating pens 4 are arranged side by side on the rotating bracket 2, and each coating pen 4 is used to coat a solder strip on the back of the battery string each time.
[0051] The rotation driving part 3 is configured to drive the rotating bracket 2 to rotate vertically, so as to drive the rotating bracket 2 to switch between a coating position and an avoidance position.
[0052] When the rotating bracket 2 rotates upward to the coating position, the coating ends of the N coating pens 4 all face upward. The lifting driving part is configured to independently drive each coating pen 4 to rise, so that the coating end of the driven coating pen 4 contacts the corresponding solder strip, and the coating pen 4 is configured to coat the flux on the corresponding solder strip.
[0053] When the rotating bracket 2 rotates downward to the avoidance position, the coating ends of the N coating pens 4 incline downward.
[0054] In the embodiment of the present application, N is at least 2, that is, at least 2 coating pens 4 are arranged side by side on the rotating bracket 2. In this way, the flux coating mechanism of the present application can at least coat the flux on two solder strips on the back of the battery string each time. For example Figure 1 and Figure 2 in the embodiment, N is 8, that is, 8 coating pens 4 are arranged on the rotating bracket 2, and the flux coating mechanism can coat the flux on 8 solder strips on the back of the battery string each time. Of course, in other embodiments, other numbers of coating pens 4 such as 3 or 4 can also be arranged on the rotating bracket 2.
[0055] In the flux coating mechanism in the embodiment of the present application, the coating pen 4 is used to coat the flux on the virtual soldering solder strip on the back of the battery string, so as to realize the spot coating of the virtual soldering solder strip. Compared with the spraying method, the coating accuracy of the spot coating is higher, and the flux usage is more saved. At the same time, each coating pen 4 can be driven by the rotating bracket 2 to rotate and switch between the avoidance position and the coating position, and can be independently lifted.
[0056] When it is necessary to apply flux coating to the battery string, each coating pen 4 first rotates and switches to the avoidance position to avoid the battery string, so that the battery string can smoothly move above each coating pen 4. After the battery string moves into place, each coating pen 4 then rotates and switches to the coating position. Subsequently, the coating pen 4 corresponding to the loose solder tape rises to perform targeted coating on the corresponding loose solder tape, and the remaining coating pens 4 all move away from the corresponding solder tape. In this way, precise dot coating of the loose solder tape is achieved, avoiding contamination of other solder tapes. In addition, by rotating the coating pen to the avoidance position when it is not in use, it can also ensure that the tip of the coating pen is always wetted by the flux inside the pen, preventing the tip from drying out.
[0057] The rotation driving part 3 in the embodiment of the present application can adopt various existing rotation driving devices that can drive the vertical rotation of the rotation bracket 2, such as a rotation motor, a rotary cylinder, etc. Optionally, both ends of the rotation bracket 2 are rotatably connected to the installation bracket 1 through rolling bearings.
[0058] Optionally, the number N of the coating pens 4 can be equal to the number M of the solder tapes on the back of the defective battery cells in the battery string to be repaired, and they are in one-to-one correspondence. Each coating pen 4 is used to apply flux to the loose solder positions on the corresponding solder tape. With such a setting, the flux coating mechanism in the embodiment of the present application can complete the flux coating of all the loose solder tapes on the back of the defective battery cells at one time, thereby improving the flux coating efficiency.
[0059] Of course, in order to reduce the equipment cost, the number N of the coating pens 4 can also be set to be less than the number M of the solder tapes on the back of the defective battery cells. At this time, the distance between adjacent two coating pens 4 needs to be set to be K times the distance between adjacent two solder tapes, where K≥1. In this case, the N coating pens 4 need to perform the flux coating on the loose solder positions of the M solder tapes in batches along the width direction of the battery string. That is, after completing the current coating operation, the N coating pen assemblies 4 move a predetermined stroke along the width direction of the battery string and then align with another N solder tapes to start the next coating operation and complete the coating of the loose solder tapes among the other N solder tapes.
[0060] As Figures 1 to 3 shown, optionally, the N coating pens 4 are all slidably connected to the rotation bracket 2. The lifting driving part includes N lifting driving members 5 corresponding to the coating pens 4 one by one, where: the N lifting driving members 5 are arranged side by side on the installation bracket 1. When the rotation bracket 2 rotates upward to the coating position, each coating pen 4 rotates above the corresponding lifting driving member 5. The driving ends of the N lifting driving members 5 can all extend upward and push the corresponding coating pen 4 to independently drive the corresponding coating pen 4 to rise.
[0061] Since each coating pen 4 is independently driven by an independent lifting drive member 5, it can be ensured that each coating pen 4 can be independently lifted and lowered to implement targeted coating on the corresponding solder strip.
[0062] After the flux coating is completed, the driving end of the lifting drive member 5 retracts downward and disengages from the corresponding coating pen 4. Subsequently, the rotating bracket 2 rotates downward, so that each coating pen 4 switches to the avoidance position again.
[0063] The lifting drive 5 can be a variety of existing linear drive components capable of driving the coating pen 4, such as a pneumatic cylinder or an electric cylinder. Since the lifting drive 5 is arranged on the mounting bracket 1, it does not rotate with the rotating bracket 2 and the coating pen 4, thereby preventing the pipes or cables of the lifting drive 5 from interfering with adjacent components during rotation, causing the rotating bracket 2 to freeze.
[0064] Of course, in other embodiments, N lifting drive members 5 can also be arranged side by side on the rotating bracket 2, and each coating pen 4 is connected to the driving end of the corresponding lifting drive member 5. When the rotating bracket 2 rotates upward to the coating position, each lifting drive member 5 independently drives the corresponding coating pen 4 to rise.
[0065] like Figures 3 to 6 As shown, optionally, each coating pen 4 is slidably mounted on the rotating bracket 2 via a buffer connection assembly 6, and the buffer connection assembly 6 is configured to be elastically retractable in the length direction of the coating pen 4. Such an arrangement allows the coating pen 4 to automatically return to its original position under the rebound action of the buffer connection assembly 6 after the driving end of the lifting drive member 5 is separated from the coating pen 4.
[0066] Optionally, the rotating bracket 2 is provided with N guide holes corresponding one to each of the coating pens 4, and the guide holes are arranged along the length of the coating pens 4. The buffer connection assembly 6 includes at least a guide sleeve 61 and a first spring 62. The guide sleeve 61 is slidably connected within the guide holes, and the coating pen 4 is mounted within the guide sleeve 61, with the coating end of the coating pen 61 extending outward from the guide holes. The first spring 62 is sleeved on the guide sleeve 61, with the first end of the first spring 62 abutting the inner wall of the guide hole, and the second end of the first spring 62 abutting the guide sleeve 61.
[0067] When the coating pen 4 rotates and switches to the coating position under the drive of the rotating bracket 2, the driving end of the lifting drive member 5 extends out and abuts the corresponding guide sleeve 61 of the coating pen 4. The guide sleeve 61 slides upward along the guide through hole under the push of the lifting drive member 5 until the coating end of the coating pen 4 abuts against the corresponding welding strip. At the same time, the first spring 62 is compressed and contracts.
[0068] After the solder paste coating is completed, the driving end of the lifting driving member 5 retracts, so as to disengage from the corresponding guide sleeve 61. At the same time, the first spring 62 rebounds under decompression, so as to push the guide sleeve 61 to slide back along the guide through hole, and the coating pen 4 descends synchronously with the guide sleeve 61, so that the coating end of the coating pen 4 disengages from the corresponding solder strip.
[0069] It can be seen that by setting the buffer connection assembly 6 to include a guide sleeve 61 and a first spring 62, when the driving end of the lifting driving member 5 extends and pushes the guide sleeve 61 to rise, the first spring 62 is compressed and contracted, and the coating pen 4 contacts the solder strip to apply the solder paste; after the solder paste coating is completed, when the driving end of the lifting driving member 5 retracts and disengages from the guide sleeve 61, the first spring 62 can push the guide sleeve 61 to slide back along the guide through hole, so that the coating end of the coating pen 4 disengages from the corresponding solder strip and automatically returns to its original position.
[0070] Optionally, the buffer connection assembly 6 further includes a second spring 63. The coating pen 4 slidably penetrates through the guide sleeve 61, and the second spring 63 is sleeved on the coating pen 4. The first end of the second spring 63 abuts against the coating pen, and the second end of the second spring 63 abuts against the guide sleeve 61. When the lifting driving member drives the guide sleeve 61 to slide upward so that the coating end of the coating pen 4 elastically abuts against the corresponding solder strip, the second spring 63 is compressed and contracted. When the coating of the solder strip is completed and the coating end of the coating pen 4 disengages from the corresponding solder strip, the second spring 63 rebounds under decompression.
[0071] By setting the second spring 63, the coating pen 4 can elastically retract after contacting the corresponding solder strip, reducing the pressure exerted by the coating pen 4 on the battery cell. In addition, after the solder paste coating is completed, the second spring 63 can push the coating pen 4 to slide back along the guide sleeve 61.
[0072] As Figures 4 to 6 shown, optionally, a first waist-shaped hole 64 extending along the length direction of the coating pen 4 is provided on the guide sleeve 61. The buffer connection assembly 6 further includes a limit bolt 65 installed on the rotating bracket 2. The limit bolt 65 is inserted into the first waist-shaped hole 64 and can slide along the first waist-shaped hole 64.
[0073] The limit bolt 65 and the first waist-shaped hole 64 realize the lifting guidance of the guide sleeve 61, preventing the guide sleeve 61 from generating axial rotation relative to the rotating bracket 2 during the lifting process.
[0074] Optionally, a second waist-shaped hole 66 penetrating through the coating pen 4 and extending along the length direction of the coating pen 4 is provided on the coating pen 4. The buffer connection assembly 6 further includes a limit shaft 67. The limit shaft 67 passes through the second waist-shaped hole 66 and can slide along the second waist-shaped hole 66. Both ends of the limit shaft 67 are fixedly connected to the guide sleeve 61.
[0075] The limiting shaft 67 and the second waist-shaped hole 66 achieve the lifting guidance for the coating pen 4, preventing the coating pen 4 from generating axial rotation relative to the guiding sleeve 61 during the lifting process.
[0076] As Figures 1 to 3 shown, optionally, the rotating bracket 2 includes a connecting frame 21 and a guiding plate 22, where: the connecting frame 21 is rotatably connected to the mounting bracket 1 and is in transmission connection with the rotation driving part 3 arranged on the mounting bracket 1, and the guiding plate 22 is detachably mounted on the connecting frame 21, and N coating pens 4 are slidably connected to the guiding plate 22.
[0077] By setting the rotating bracket 2 into a split structure composed of the connecting frame 21 and the guiding plate 22, it is convenient to disassemble and assemble the coating pen 4. For example, when it is necessary to apply flux to battery strings of different versions, only the guiding plate 22 equipped with the coating pen 4 needs to be integrally disassembled and replaced, without disassembling and assembling the connecting frame 21.
[0078] Optionally, N lifting driving parts 5 are arranged on the mounting bracket 1 with adjustable positions. After the overall disassembly and replacement of the guiding plate 22 and the coating pen 4, according to the distance between the coating pens 4 on the replaced guiding plate 22, the distance of the lifting driving parts 5 can be adjusted accordingly, so as to ensure that each lifting driving part 5 is aligned with the corresponding coating pen 4 to implement the lifting drive for the corresponding coating pen 4.
[0079] As Figure 7 shown, optionally, the flux coating mechanism in the embodiment of the present application further includes a translation driving part 7, the mounting bracket 1 is connected to the moving part of the translation driving part 7, and the translation driving part 7 is used to drive the mounting bracket 1 to translate, so as to ensure that each coating pen 4 can be aligned with the corresponding solder strip. In addition, through the drive of the translation driving part 7, the coating pen 4 can move along the length direction of the solder strip during the coating process, so as to complete the flux coating of all the virtual soldering positions of the solder strip.
[0080] Optionally, the translation driving part 7 includes an X-axis driving module 71 and a Y-axis driving module 72. Among them, the Y-axis driving module 72 is connected to the moving part of the X-axis driving module 71, and the mounting bracket 1 is connected to the moving part of the Y-axis driving module 72. The X-axis driving module 71 is used to drive the mounting bracket 1 to translate on the X-axis, and the Y-axis driving module 72 is used to drive the mounting bracket 1 to translate on the Y-axis.
[0081] Both the X-axis driving module 71 and the Y-axis driving module 72 can adopt various existing forms of linear driving modules, such as a synchronous belt driving module composed of components such as a motor, a slider and a synchronous belt, or a lead screw driving module composed of a motor, a lead screw and a lead screw nut, etc.
[0082] The embodiment of the present application also provides a battery string repair device, which includes a flux coating mechanism, a handling mechanism, a repair platform and a welding mechanism in any of the above embodiments, where: The handling mechanism is used to transport the battery string to be repaired above the flux coating mechanism, and there are solder joints with poor soldering on the back of the battery string to be repaired. The flux coating mechanism is used to coat flux on the solder joints with poor soldering. The handling mechanism is also used to transport the battery string to be repaired with flux coated to the repair platform. The welding mechanism is used to re-weld the solder joints with poor soldering coated with flux to the corresponding battery cells. Through the cooperation of the flux coating mechanism, the handling mechanism, the repair platform and the welding mechanism, the battery string repair device provided by the present application realizes the automatic repair of the battery string with solder joints with poor soldering on the back.
[0083] In the above description of the present application, unless otherwise clearly specified and limited, terms such as "fixed", "installed", "connected" or "coupled" should be understood in a broad sense. For example, in the case of the term "connected", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the communication inside two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly limited in the present application, those skilled in the art can understand the specific meanings of the above terms in the present application according to specific situations.
[0084] According to the above description of the present application, those skilled in the art can also understand the following terms used, such as "upper", "lower", "front", "rear", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc. The terms indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings of the present application. It is only for the purpose of facilitating the description of the solution of the present application and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in the specific orientation. Therefore, the above terms of orientation or position relationship cannot be understood or interpreted as a limitation to the solution of the present application.
[0085] In addition, the terms "first" or "second" etc. used in the present application to refer to numbers or ordinals are only for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically limited.
[0086] Although several embodiments of the present application have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many changes, variations, and alternative ways may occur to those skilled in the art without departing from the spirit and scope of the present application. It should be understood that various alternatives to the embodiments of the present application described herein may be employed in practicing the present application. The appended claims are intended to define the scope of the present application and thus cover equivalents or alternatives within the scope of these claims.
Claims
1. A flux coating mechanism, characterized in that, The flux coating mechanism includes a mounting bracket, a rotating bracket, a rotating drive part, N coating pens and a lifting drive part, where: The rotating bracket is rotatably connected to the mounting bracket and is in transmission connection with the rotating drive part arranged on the mounting bracket. The N coating pens are arranged side by side on the rotating bracket, and each coating pen is used to coat a solder strip on the back of the battery string each time. The rotating drive part is configured to drive the rotating bracket to rotate vertically to drive the rotating bracket to switch between a coating position and an avoidance position. When the rotating bracket rotates upward to the coating position, the coating ends of the N coating pens all face upward. The lifting drive part is configured to independently drive each coating pen to rise, so that the coating end of the driven coating pen contacts the corresponding solder strip, and the coating pen is configured to coat flux on the corresponding solder strip. When the rotating bracket rotates downward to the avoidance position, the coating ends of the N coating pens incline downward. N≥2。 2. The solder flux coating mechanism according to claim 1, wherein, The N coating pens are all slidably mounted on the rotating bracket. The lifting drive part includes N lifting drive members corresponding to the coating pens one by one, where: The N lifting drive members are arranged side by side on the rotating bracket, and each coating pen is connected to the drive end of the corresponding lifting drive member. When the rotating bracket rotates upward to the coating position, each lifting drive member is used to drive the corresponding coating pen to rise.
3. The solder flux coating mechanism according to claim 1, characterized in that, The N coating pens are all slidably connected to the rotating bracket. The lifting drive part includes N lifting drive members corresponding to the coating pens one by one, where: The N lifting drive members are arranged side by side on the mounting bracket. When the rotating bracket rotates upward to the coating position, each coating pen rotates above the corresponding lifting drive member, and the drive end of each lifting drive member is used to extend and push the corresponding coating pen to drive the corresponding coating pen to rise.
4. The solder flux coating mechanism according to claim 3, wherein Each coating pen is slidably mounted on the rotating bracket through a buffer connection assembly, and the buffer connection assembly is configured to be elastically telescopic in the length direction of the coating pen.
5. The solder flux coating mechanism according to claim 4, characterized in that, The rotating bracket is provided with N guiding through holes corresponding to the coating pens one by one, and the guiding through holes are arranged along the length direction of the coating pen. The buffer connection assembly at least includes a guiding sleeve and a first spring, where: The guiding sleeve is slidably connected in the guiding through hole, the coating pen is mounted in the guiding sleeve, and the coating end of the coating pen extends out of the guiding through hole. The first spring is sleeved on the guiding sleeve. The first end of the first spring abuts against the inner wall of the guiding through hole, and the second end of the first spring abuts against the guiding sleeve. The drive end of the lifting drive member is used to extend and abut against the guiding sleeve of the corresponding coating pen. When the guiding sleeve slides upward along the guiding through hole, the first spring is compressed and contracted. When the drive end of the lifting drive member disengages from the corresponding guiding sleeve, the first spring decompresses and rebounds to push the guiding sleeve to slide and reset along the guiding through hole.
6. The solder flux coating mechanism according to claim 5, characterized in that, The buffer connection assembly further includes a second spring, the coating pen is slidably connected to the guide sleeve, the second spring is sleeved on the coating pen, a first end of the second spring abuts against the coating pen, and a second end of the second spring abuts against the guide sleeve; The lifting drive member drives the guide sleeve to slide upward to drive the coating pen to rise, and when the coating end of the coating pen abuts against the corresponding welding strip, the second spring is compressed and contracts; When the coating end of the coating pen is separated from the corresponding welding strip, the second spring loses pressure and rebounds.
7. The solder flux coating mechanism according to claim 5, wherein The guide sleeve is provided with a first waist hole extending along the length direction of the coating pen; The buffer connection assembly further includes a limiting bolt mounted on the rotating bracket, wherein the limiting bolt is inserted into the first waist hole and can slide along the first waist hole.
8. The flux coating mechanism according to claim 6, characterized in that, The coating pen is provided with a second waist hole which passes through the coating pen and extends along the length direction of the coating pen; The buffer connection assembly further includes a limiting shaft, which passes through the second waist hole and can slide along the second waist hole, and both ends of the limiting shaft are fixedly connected to the guide sleeve.
9. The solder flux coating mechanism according to claim 3, wherein The rotating bracket includes a connecting frame and a guide plate, wherein: The connecting frame is rotatably connected to the mounting bracket and is transmission-connected to the rotary drive unit provided on the mounting bracket. The guide plate is detachably mounted on the connecting frame, and the N coating pens are slidably connected to the guide plate. The N lifting drive members are adjustably arranged on the mounting bracket.
10. The flux coating mechanism according to claim 1, characterized in that, The flux coating mechanism further includes a translation driving portion, the mounting bracket is connected to a movable component of the translation driving portion, and the translation driving portion is used to drive the mounting bracket to translate.
11. A battery string repair device, characterized in that, The battery string repair device comprises the flux coating mechanism, the transport mechanism, the repair platform and the welding mechanism according to any one of claims 1 to 10, wherein: The transport mechanism is used to transport the battery string to be repaired to the top of the flux coating mechanism, and there is a cold solder strip on the back of the battery string to be repaired; The soldering flux coating mechanism is used to coat the soldering flux onto the cold soldering strip; The transport mechanism is also used to transport the battery string to be repaired after the flux coating is completed to the repair platform; The welding mechanism is used to re-weld the cold-weld welding ribbon coated with soldering flux to the corresponding battery cell.