Bearing mechanism and tandem connection equipment

Abstract

The utility model discloses a bearing mechanism and tandem connection equipment, and belongs to the field of solar cell production. The bearing mechanism comprises two supporting plate assemblies used for bearing the pressing tool, the two supporting plate assemblies are oppositely arranged on the two sides of the conveying device and define a bearing face, and the bearing face is higher than the conveying face of the conveying mechanism. The driving element is used for driving the two supporting plate assemblies to get close to each other or get away from each other, when the two supporting plate assemblies get close to each other, the two supporting plate assemblies bear the pressing tool, and at least part of elastic pressing needles of the pressing tool make contact with the to-be-pressed part conveyed by the conveying device; when the two supporting plate assemblies are far away from each other, the two supporting plate assemblies release the pressing tool, and all the elastic pressing needles on the pressing tool make contact with the to-be-pressed piece conveyed by the conveying device. The pressing device has the advantages of being good in pressing effect and capable of avoiding mechanical damage.

Description

Technical Field

[0001] The embodiments of the present application belong to the field of solar cell production, especially the field of cell string manufacturing. In particular, the present application relates to a supporting mechanism and a string connection device. Background Art

[0002] During the battery string production process, the solder ribbons and battery cells are first stacked on a conveying device according to the stringing rules, and then conveyed to a welding device to be welded into battery strings. In order to prevent the solder ribbons and battery cells from shifting during the conveying process, a press is generally used to press the solder ribbons and battery cells tightly before conveying.

[0003] The traditional method is to use a robot to place the press directly on the stacked solder ribbons and battery cells to press and position the solder ribbons on the battery cells. However, the robot releases the press quickly, which will have a certain impact pressure on the stacked solder ribbons and battery cells, and there is a risk of crushing the battery cells. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a supporting mechanism and a serial connection device to ensure a good pressing effect when the stacked solder strips and battery cells are pressed and to avoid mechanical damage.

[0005] In order to solve the above problems, the technical solutions adopted in this application are as follows:

[0006] A first aspect of the present application provides a supporting mechanism, the supporting mechanism comprising:

[0007] Two support plate assemblies for supporting the pressing tool are arranged opposite to each other on both sides of the conveying device and define a supporting surface, and the supporting surface is higher than the conveying surface of the conveying mechanism;

[0008] The driving element is used to drive the two pallet assemblies toward or away from each other.

[0009] When the two pallet assemblies approach each other, the two pallet assemblies support the press, and make at least part of the elastic pressure pins of the press contact with the workpiece to be pressed being transported by the conveying device; when the two pallet assemblies move away from each other, the two pallet assemblies release the press, and all the elastic pressure pins on the press contact with the workpiece to be pressed being transported by the conveying device.

[0010] The supporting mechanism can support the released press for pressing the solder strip and the battery cell, and can release the press by driving the support plate assemblies away from each other. Since the press is first supported by the support plate assembly after being released, the downward impact force on the battery cell and the solder strip generated when the press is released is reduced, thereby reducing the mechanical damage to the solder strip and the battery cell.

[0011] Optionally, the supporting mechanism includes a driving element, and the driving element includes two driving ends, one driving end is connected to a pallet assembly, and the other driving end is connected to another pallet assembly; or the supporting mechanism includes two driving elements, and the driving end of each driving element is connected to a pallet assembly.

[0012] Using one driving element to drive the movement of the two pallet assemblies can ensure synchronization and save drive.

[0013] Optionally, the driving element includes a telescopic cylinder, and the driving end is a piston rod of the telescopic cylinder.

[0014] The telescopic cylinder and the piston rod have a simple structure, are convenient and easy to use and have low cost.

[0015] Optionally, the pallet assembly includes a pallet and a connecting piece, the connecting piece is connected to the driving end of the driving element, the pallet is connected to the connecting piece, and the pallet is parallel to the conveying surface.

[0016] The connecting piece can be arranged perpendicularly to the support plate or can be arranged in an adapted posture or shape according to the space conditions. The support plate is used to carry the pressing tool, which can be maintained and replaced separately.

[0017] Optionally, the connecting member includes a connecting plate, on which a first waist hole extending vertically is provided. The connecting plate is mounted on the driving end of the driving element through the first waist hole.

[0018] The fixed position of the connecting plate and the driving end can be adjusted through the first waist hole, and the vertical height of the support plate can be adjusted, thereby realizing the vertical height adjustment of the press on the conveying surface to match the workpieces to be pressed of different heights.

[0019] Optionally, the connecting member further includes a connecting block, which is disposed between the connecting plate and the driving element, the connecting block is connected to the connecting plate via a first waist hole, and the driving end of the driving element is connected to the connecting block.

[0020] The connection block is used to realize the connection between the connection plate and the driving end, which facilitates the adjustment of the fixed connection position between the connection plate and the connection block and enhances the connection stability.

[0021] Optionally, a second waist hole is provided on the support plate, the extension direction of the second waist hole is the same as the movement direction of the support plate assembly, and the support plate is mounted on the connecting plate through fixing bolts and the second waist hole.

[0022] The fixing position of the connecting plate and the supporting plate is adjusted through the second waist hole to achieve the adjustment of the horizontal installation position of the supporting plate, which is used to match the parts to be pressed of different widths and can adapt to presses with different supporting and stress-bearing parts.

[0023] The use of a buffer mechanism can play a buffering role, avoid the instability of the movement speed of the connecting part during movement, and thus avoid affecting the position stability of the part to be pressed on the pallet.

[0024] Optionally, the supporting mechanism further includes a buffer mechanism, which is disposed on the connecting member and is used to form a buffer when the connecting member moves toward the driving element.

[0025] Optionally, the buffer mechanism includes a buffer and a buffer limiter, the buffer is installed on a side of the connecting member close to the conveying device, the buffer limiter is arranged on a moving path of the buffer, and when the connecting member moves toward the conveying device to a preset distance, the buffer abuts against the buffer limiter.

[0026] The buffer limiter is used to buffer and limit the movement of the buffer and the connecting member, ensuring that the press can be clamped between the two support plates, thereby ensuring the stability and consistency of the press.

[0027] Optionally, a coating is provided on the supporting surface of the support plate assembly.

[0028] The coating can make the surface of the support smooth and wear-resistant. The coating can smoothly release the press and increase the service life.

[0029] Optionally, an inclined section is provided on the supporting surface of the pallet assembly, and the horizontal height of the inclined section gradually decreases from the side away from the conveying device to the side close to the conveying device.

[0030] The inclined section facilitates the slow release of the press when the two support plate assemblies are moved away from each other, thereby reducing the downward impact force on the battery cell and the welding strip generated when the press is released.

[0031] A second aspect of the present application provides a serial connection device, the serial connection device comprising:

[0032] A connecting device, a conveying device, a pressing device, and a supporting mechanism of any one of the first aspects;

[0033] The press is supported by the supporting mechanism, and the two support plate assemblies can be driven to move away from each other until the press is released from the supporting surface. The press comprises a frame and an elastic pressure pin, which is mounted on the frame and extends in a direction perpendicular to the conveying surface. When the two support plate assemblies approach each other, the two support plate assemblies support the press, and at least part of the elastic pressure pins of the press are in contact with the workpiece to be pressed being conveyed by the conveying device; when the two support plate assemblies move away from each other, the two support plate assemblies release the press, and all the elastic pressure pins on the press are in contact with the workpiece to be pressed being conveyed by the conveying device.

[0034] The serial connection device compresses the welding ribbon and battery cells conveyed by the conveying device and then connects them in series to form a battery string. During the pressing process, the impact force on the welding ribbon and the battery cells is small, thereby avoiding the occurrence of mechanical damage.

[0035] The cooperation between the press and the supporting mechanism of the present application reduces the mechanical damage to the welding strip and the battery cell during the pressing process of the press, thereby ensuring the stability of the structure and performance of the battery string after being transported to the string connection device for welding through the conveying device.

[0036] Optionally, the elastic pressure pins are arranged in rows, and each row of elastic pressure pins corresponds to a welding strip; the elastic pressure pins include a first elastic pressure pin with a first length and a second elastic pressure pin with a second length, and the first length is greater than the second length.

[0037] First, the two support plate assemblies are brought close to each other to support the press so that the elastic pressure pins of the first length contact the battery cell first, and the long insertion pins play a supporting and buffering role for the press. When the two support plate assemblies release the press and the press sinks, the second length elastic pressure pins are used to achieve downward pressure buffering, thereby reducing the downward impact force on the battery cell and the soldering strip generated when the press is released, thereby reducing the mechanical damage to the soldering strip and the battery cell.

[0038] Optionally, each row of elastic pressure pins includes a first elastic pressure pin and a second elastic pressure pin, wherein:

[0039] The first part of each row of elastic pressing pins is the second elastic pressing pin, and the rest of the rows are the first elastic pressing pins; or,

[0040] The tail of each row of elastic pressing pins is the second elastic pressing pin, and the rest of the rows are the first elastic pressing pins; or,

[0041] The head and tail of each row of elastic pressing pins are second elastic pressing pins, and the rest are first elastic pressing pins; or, the head of each row of elastic pressing pins is second elastic pressing pins, and the rest are first elastic pressing pins and second elastic pressing pins alternately arranged.

[0042] A plurality of first elastic pressing pins and second elastic pressing pins are used in combination to respectively play a supporting and buffering role, thereby reducing the downward impact force on the battery cell and the soldering strip when the press is released, thereby reducing the mechanical damage to the soldering strip and the battery cell.

[0043] Optionally, the frame is provided with a through hole; or,

[0044] A through hole is arranged in the middle of the elastic pressing pin; or, a through hole is arranged in the middle of both the frame and the elastic pressing pin.

[0045] A through hole is provided so that energy such as light or heat can pass through the through hole to achieve heating, thereby improving heating efficiency.

[0046] Optionally, the serial connection device further includes a press return device, a press unloading device and a press loading device;

[0047] The feeding end of the press return device corresponds to the discharging end of the conveying device, and the discharging end of the press return device corresponds to the feeding end of the conveying device;

[0048] The press unloading device is arranged between the discharge end of the conveying device and the loading end of the press return device, and the press unloading device is used to transport the press on the conveying device to the loading end of the press return device;

[0049] The press loading device is arranged between the loading end of the conveying device and the discharging end of the press return device, and is used for transporting the discharging end of the press return device to the loading end of the conveying device.

[0050] By setting up a press return device, a press unloading device and a press loading device, the loading, unloading and return of the press can be realized, and used in conjunction with the conveying device to ensure the recycling requirements of the press in the welding process of the battery cell.

[0051] Optionally, the serial connection device further includes a welding ribbon pulling device and a battery cell feeding and conveying device. The discharge end of the battery cell feeding and conveying device is arranged corresponding to the discharge end of the press return device. The battery cell feeding device is used to provide battery cells.

[0052] The press feeding device is provided with a press moving mechanism and a battery cell moving mechanism. The press moving mechanism is used to pick up the press, the battery cell moving mechanism is used to pick up the battery cell, and the press feeding device is used to drive the press and the battery cell to move to the conveying device.

[0053] The solder ribbon traction device is used to provide the solder ribbon to the conveying device, and the press feeding device and the solder ribbon traction device stack the press, solder ribbon and battery cells on the conveying device.

[0054] Through the coordinated use of the solder tape traction device, the battery cell feeding and conveying device and the press return device, it is ensured that at the feeding port of the conveying device, the battery cell is pressed onto the solder tape and the press is pressed onto the battery cell to form a fixed crimping structure, which is convenient for the implementation of the subsequent welding process.

[0055] Optionally, the press is provided with a magnetic component, the conveying device is provided with a magnetic component, and the support plate is a non-magnetic component.

[0056] By using the magnetic component, the stability of the crimping between the press and the battery sheet on the conveying device can be enhanced to avoid misalignment during the subsequent transportation process. In addition, the pallet is a non-magnetic component to ensure that the press can be released from the pallet smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 A structural schematic diagram of a first-viewing angle of view of a supporting mechanism supporting a pressing tool provided in an embodiment of the present application;

[0058] Figure 2A structural schematic diagram of a second viewing angle of a supporting mechanism supporting a pressing tool provided in an embodiment of the present application;

[0059] Figure 3 A schematic structural diagram of a first perspective of a driving element driving a support plate assembly provided in an embodiment of the present application;

[0060] Figure 4 A schematic structural diagram of a second perspective of a driving element driving a support plate assembly provided in an embodiment of the present application;

[0061] Figure 5 A schematic diagram of the structure of a support plate provided in an embodiment of the present application;

[0062] Figure 6 A schematic diagram of the structure of a serial connection device provided in an embodiment of the present application.

[0063] Description of reference numerals:

[0064] 1-supporting mechanism; 2-pressing tool; 3-conveying device; 4-pressing tool return device; 5-pressing tool unloading device; 6-pressing tool loading device;

[0065] 11- support plate assembly; 12- driving element; 14- buffer mechanism; 20- frame; 21- elastic pressure needle; 22- through hole;

[0066] 111- support plate; 112- connecting piece; 113- mounting block; 120- driving end; 121- piston rod; 122- telescopic cylinder; 141- buffer; 142- buffer stopper;

[0067] 1111-second waist hole; 1121-connecting plate, 1122-connecting block; 1123-first waist hole. DETAILED DESCRIPTION

[0068] The present application is further described below in conjunction with specific embodiments.

[0069] like Figure 1 , Figure 2 The supporting mechanism 1 shown, wherein Figure 1 is a schematic diagram of the three-dimensional structure. Figure 2 A schematic diagram of the structure from the front view.

[0070] The supporting mechanism 1 provided in this embodiment includes a support plate assembly 11 and a driving element 12 for driving the support plate assembly 11. Among them, the support plate assembly 11 is used to support the press 2, and there are two of them, which are arranged on both sides of the conveying device opposite to each other and define a supporting surface, and the supporting surface is higher than the conveying surface of the conveying mechanism, so that when the parts to be pressed (i.e., solder strips and battery cells) are conveyed by the conveying mechanism, the press 2 on the supporting surface can be pressed on top of the battery cell, and the press 2 is provided with pins of different lengths, the length direction of the pins is perpendicular to the surface of the battery cell, and the press 2 is pressed on the surface of the battery cell through the pins to ensure the stability of the solder strips and battery cells when they are welded at the welding station.

[0071] In addition, the driving element 12 is used to drive the two pallet assemblies 11 to move closer to or farther from each other. When the two pallet assemblies 11 move closer to each other, the two pallet assemblies 11 support the press 2. At this time, the long elastic pressure pins on the press 2 contact the workpiece to be pressed by the conveying device; when the two pallet assemblies 11 move away from each other, the two pallet assemblies 11 release the press 2. At this time, the press 2 sinks due to its own weight, and the short elastic pressure pins on the press 2 also contact the workpiece to be pressed. That is, at this time, all the elastic pressure pins 21 on the press 2 contact the workpiece to be pressed by the conveying device, thereby achieving downward pressure on the workpiece to be pressed. In specific implementation, the workpiece to be pressed can be a battery cell with a solder strip on the surface or a battery cell laid on the solder strip.

[0072] Among them, the two support plate assemblies 11 are first brought close to each other to support the press 2 so that the long elastic pressure pin contacts the battery cell first, and the long insertion pin plays a supporting and buffering role for the press 2. When the two support plate assemblies 11 release the press 2 and the press 2 sinks, the short elastic pressure pin is used to achieve downward pressure buffering, which reduces the downward impact force on the battery cell and the soldering strip generated when the press 2 is released, thereby reducing the mechanical damage to the soldering strip and the battery cell, and at the same time achieving the positioning of the stacked soldering strips and battery cells.

[0073] In this embodiment, the number of driving elements 12 can be one or more. In one embodiment, the supporting mechanism 1 includes a driving element 12, and the driving element 12 includes two driving ends 120, one driving end 120 is connected to a pallet assembly 11, and the other driving end 120 is connected to another pallet assembly 11; using one driving element 12 to drive the movement of two pallet assemblies 11 can ensure synchronization and save drive. In another embodiment, the supporting mechanism 1 includes two driving elements 12, and the driving end 120 of each driving element 12 is connected to a pallet assembly 11, and the two driving elements 12 are connected and driven separately, which has a simple structure and is convenient and easy to use.

[0074] like Figure 3The schematic diagram of a driving element 12 driving a pallet assembly 11 is shown. In one embodiment, the driving element 12 includes a telescopic cylinder 122, and the driving end 120 is a piston rod 121 of the telescopic cylinder 122. The telescopic cylinder 122 drives the piston rod 121 to extend and retract to achieve the approach and separation of the two pallet assemblies 11. The structure is simple, convenient and easy to use, and the cost is low. In addition, the driving element 12 can also use a motor and a gear combination to achieve the approach and separation of the two pallet assemblies 11, and the movement accuracy is high.

[0075] Continue as Figure 3 As shown, for example, the pallet assembly 11 includes a pallet 111 and a connector 112. The pallet 111 is parallel to the conveying surface to ensure that the press 2 carried on the pallet 111 can be pressed on the upper surface of the battery cell; one end of the connector 112 is fixedly connected to the pallet 111, and the other end is connected to the driving end 120 of the driving element 12. The driving element 12 drives the pallets 111 to move closer to and away from each other through the connector 112. In addition, the connector 112 can be set in a posture perpendicular to the pallet 111 or in an adapted posture or shape according to the space conditions. The pallet 111 is used to carry the press 2, which can be maintained and replaced separately, or can be designed separately to match different presses. When using different presses, only the pallet 111 needs to be replaced separately.

[0076] Combination Figure 3 and Figure 4 As shown, as one embodiment, the connecting member 112 includes a connecting plate 1121, and a first waist hole 1123 extending vertically is provided on the connecting plate 1121. The connecting plate 1121 is installed on the driving end 120 of the driving element 12 through the first waist hole 1123. The fixed position of the connecting plate 1121 and the driving end 120 can be adjusted through the first waist hole 1123, and the vertical height of the supporting plate 111 can be adjusted, thereby realizing the vertical height adjustment of the pressing tool 2 on the conveying surface, which is used to match the workpieces to be pressed of different heights.

[0077] When the connection with the driving end 120 is realized through the connecting plate 1121, the connecting member 112 also includes a connecting block 1122 arranged between the connecting plate 1121 and the driving element 12, and the driving end 120 of the driving element 12 is connected to the connecting block 1122, and the connecting block 1122 is connected to the connecting plate 1121 through the first waist hole 1123. The connection between the connecting plate 1121 and the driving end 120 is realized by using the connecting block 1122, which facilitates the adjustment of the fixed connection position of the connecting plate 1121 and the connecting block 1122, and enhances the connection stability. The installation height of the support plate 111 is adjustable through the provision of the first waist hole 1123.

[0078] In addition, if Figure 4As shown, the support plate 111 is also provided with a second waist hole 1111, the extension direction of the second waist hole 1111 is the same as the direction of movement of the support plate assembly 11, and the support plate 111 is installed on the connecting plate 1121 through a fixing bolt (not shown in the accompanying drawings) and the second waist hole 1111. The fixing position of the connecting plate 1121 and the support plate 111 can be adjusted through the second waist hole 1111 to adjust the horizontal installation position of the support plate 111 to match presses and parts to be pressed of different widths, or the contact area of ​​the support plate 111 and the press 2 can be adjusted to ensure that the press 2 can be stably supported while the press 2 can be released stably. The same support plate 111 and the same connecting plate 1121 of this structure can also be flexibly adjusted to adapt to presses with different sizes of supporting force-bearing parts.

[0079] By respectively setting waist holes on the connecting piece 112 and the support plate 111, the support plate 111 can be adjusted separately in the horizontal and vertical directions. By adapting the press 2 of different heights and sizes, the battery cells of different sizes and the corresponding welding strips can be pressed and flexibly applied.

[0080] like Figure 4 As shown, in this embodiment, the supporting mechanism 1 also includes a buffer mechanism 14, which is arranged on the connecting member 112 along the horizontal direction. When the driving element 12 adopts the telescopic cylinder 122 to drive the piston rod 121 to drive the connecting member 112 to move, the buffer mechanism 14 can play a buffering role to avoid the instability of the movement speed of the connecting member 112 during the movement, thereby avoiding affecting the position stability of the parts to be pressed on the support plate 111.

[0081] Continue as attached Figure 4 As shown, specifically, the buffer mechanism 14 includes a buffer 141 and a buffer stopper 142. The buffer 141 is installed on the side of the connecting member 112 close to the conveying device. For example, the buffer 141 is installed on the connecting block 1122; the buffer stopper 142 is arranged on the moving path of the buffer 141, and in one implementation, it can be arranged on the fixed end of the driving element 12; for example, the driving element 12 is installed on the conveying device 3 through the mounting block 113, and the buffer stopper 142 is fixedly connected to the mounting block 113. Of course, the driving element 12 can also be installed on the conveying device 3 through a mounting frame or other connecting plate, and the buffer stopper 142 can also be fixedly connected to the corresponding mounting frame or connecting plate. When the driving element 12 drives the connecting member 112 to move toward the conveying device 3 to a preset distance, the buffer 141 abuts against the buffer stopper, wherein the preset distance is determined according to the size of the part to be pressed. The buffer limiter 142 is used to buffer and limit the movement of the buffer 141 and the connecting member 112, so as to ensure that the pressing tool 2 can be clamped between the two supporting plates 111, thereby ensuring the stability and consistency of the pressing tool 2.

[0082] In addition, if Figure 5 As shown, a coating is provided on the supporting surface of the support plate assembly 11, and the coating surface is smooth, so that when the two support plate assemblies 11 are separated, the pressing tool 2 can be released smoothly, and the coating can form a hard and wear-resistant surface to improve the service life of the support plate assembly 11. In one implementation, the coating can be a hard metal or alloy.

[0083] In this embodiment, an inclined section (not shown in the drawings) is provided on the supporting surface of the pallet assembly 11, and the horizontal height of the inclined section gradually decreases from the side away from the conveying device to the side close to the conveying device, so as to facilitate the slow release of the press 2 when the two pallet assemblies 11 are away from each other, thereby reducing the downward impact force on the battery cells and solder strips generated when the press 2 is released.

[0084] Combination Figure 1 and Figure 6 As shown, based on the same application concept, this embodiment also provides a serial connection device, which includes a serial connection device (not shown in the figure), a conveying device 3, a press 2 and a supporting mechanism 1 of the above embodiment. The press 2 is supported by the supporting mechanism 1, and the two support plate assemblies 11 can be driven to move away from each other until the press 2 is released from the supporting surface.

[0085] In one implementation, the serial connection device may be an infrared lamp heating light box, a light curing light box, a hot air heating light box, a heat pressing light box, or a laser heating welding light box.

[0086] Among them, the press 2 includes a frame 20 and an elastic pressure pin 21, the elastic pressure pin 21 is installed on the frame 20 and extends in a direction perpendicular to the conveying surface. When the two pallet assemblies 11 approach each other, the two pallet assemblies 11 support the press 2 and make at least part of the elastic pressure pins 21 of the press 2 contact with the workpiece to be pressed conveyed by the conveying device 3; when the two pallet assemblies 11 move away from each other, the two pallet assemblies 11 release the press 2, and all the elastic pressure pins 21 on the press 2 contact with the workpiece to be pressed conveyed by the conveying device 3; the serial connection device connects the crimped parts conveyed by the conveying device 3 into a battery string.

[0087] In one implementation, the elastic pressing pin 21 can be lifted and slidably installed on the frame 20, and a spring is mounted on the elastic pressing pin 21, one end of the spring abuts against the bottom protrusion of the pressing pin, and the other end of the spring abuts against the lower side of the frame 20, and the spring keeps the pressing pin always in a state of extending downward. In one implementation, the pressing pin is columnar, and there is a protrusion at the bottom of the pressing pin to facilitate the abutment of the spring.

[0088] Before the press 2 is released by the supporting mechanism 1, at least part of the elastic pressing pins 21 on the press 2 have been in contact with the workpiece to be pressed, so the impact force generated when the press 2 is released from the supporting mechanism 1 is relatively small, which reduces the mechanical damage to the welding strip and the battery cell, thereby ensuring the stability of the structure and performance of the battery string after being transported to the stringing device for welding through the conveying device 3.

[0089] Combination Figure 1 and Figure 2 As shown, in one embodiment, the elastic pressure pins 21 are arranged in rows, each row is arrayed with a plurality of elastic pressure pins 21, and each row of elastic pressure pins 21 corresponds to a welding strip, which is used to press down the battery cell on the welding strip. The elastic pressure pins 21 include a first elastic pressure pin with a first length and a second elastic pressure pin with a second length, and the first length is greater than the second length.

[0090] During the specific implementation, the two support plate assemblies 11 are first brought close to each other to support the press 2 so that the elastic pressure pins 21 of the first length contact the battery cell first, and the long insertion pins play a supporting and buffering role for the press 2. When the two support plate assemblies 11 release the press 2 and the press 2 sinks, the downward pressure buffer is achieved through the elastic pressure pins 21 of the second length, which reduces the downward impact force on the battery cell and the soldering strip generated when the press 2 is released, thereby reducing the mechanical damage to the soldering strip and the battery cell.

[0091] In one embodiment, each row of elastic pressing pins 21 includes a first elastic pressing pin and a second elastic pressing pin. Through the sequential action of the first elastic pressing pin and the second elastic pressing pin, the pressing tool 2 can be used to press the battery cells and the soldering strips on each soldering strip by means of buffered downward pressure.

[0092] The arrangement direction of each row of elastic pressing pins 21 is in accordance with the conveying direction of the conveying device, and the positions of each row of elastic pressing pins can be divided into three parts in sequence according to the conveying direction, namely, the head (i.e., the positions of several elastic pressing pins 21 in front of each row of elastic pressing pins 21 along the conveying direction), the middle (i.e., the positions of several elastic pressing pins 21 in the middle of each row of elastic pressing pins 21 along the conveying direction) and the tail (i.e., the positions of several elastic pressing pins 21 in the back of each row of elastic pressing pins 21 along the conveying direction). There are many ways to combine the first elastic pressing pin and the second elastic pressing pin of each row of elastic pressing pins 21. In example 1, the head of each row of elastic pressing pins 21 is the second elastic pressing pin, and the rest of the positions are the first elastic pressing pins; in one implementation, the number of the second elastic pressing pins at the head can be 1, 2, 3, 4, 5, or adjusted according to demand. Example 2: The tail of each row of elastic pressure pins 21 is the second elastic pressure pin, and the rest of the positions are the first elastic pressure pins; in one implementation, the second elastic pressure pins at the tail can be 1, 2, 3, 4, 5 or adjusted according to demand. Example 3: The head and tail of each row of elastic pressure pins 21 are the second elastic pressure pins, and the rest of the positions are the first elastic pressure pins; in one implementation, the second elastic pressure pins at the head and tail can be 1, 2, 3, 4, 5 or adjusted according to demand. Example 4: The head of each row of elastic pressure pins 21 is the second elastic pressure pin, and the first elastic pressure pins and the second elastic pressure pins at the rest of the positions are alternately arranged. In one implementation, the second elastic pressure pins at the head can be 1, 2, 3, 4, 5 or adjusted according to demand, and the rest of the positions can be a second elastic pressure pin set between each first elastic pressure pin, or a second elastic pressure pin set between every two first elastic pressure pins, every three first elastic pressure pins, and four first elastic pressure pins.

[0093] Regardless of which of the above examples is used, the first elastic pressure pin and the second elastic pressure pin cooperate to play a supporting and buffering role, reducing the downward impact force on the battery cell and the solder strip when the press 2 is released, thereby reducing the mechanical damage to the solder strip and the battery cell. Among them, the head, middle and tail of each row of elastic pressure pins 21 are divided in sequence along the conveying direction; in addition, the head, middle and tail are in a relative position relationship, and the head, middle and tail can have several elastic pressure pins 21, and the specific number is not limited here.

[0094] Continue as Figure 1 As shown, in this embodiment, a through hole 22 is provided on the frame 20, so that when heating the battery cell and the solder strip, energy such as light or heat passes through the through hole 22 to achieve heating, thereby improving the heating efficiency. In addition, a through hole 22 may be provided in the middle of the elastic pressure pin 21; a through hole 22 may also be provided in the middle of both the frame 20 and the elastic pressure pin 21; both of which can improve the heating efficiency.

[0095] like Figure 6 As shown, as one of the embodiments, the series connection device also includes a press tool return device 4, a press tool unloading device 5 and a press tool loading device 6; wherein the press tool return device 4 is arranged adjacent to the conveying device 3, and the loading end of the press tool return device 4 corresponds to the discharging end of the conveying device 3, and the discharging end of the press tool return device 4 corresponds to the loading end of the conveying device 3; the press tool unloading device 5 is arranged between the discharging end of the conveying device 3 and the loading end of the press tool return device 4, and the press tool unloading device 5 is used to transfer the conveying The press on the conveying device 3 is transported to the loading end of the press return device 4, and the press is transported from the loading end of the press return device 4 to the discharging end of the press return device 4 on the press return device 4 (this conveying direction is opposite to the conveying direction of the workpiece to be pressed on the conveying device 3); the press loading device 6 is arranged between the loading end of the conveying device 3 and the discharging end of the press return device 4, and the press loading device 6 is used to transport the press from the discharging end of the press return device 4 to the loading end on the conveying device 3.

[0096] In one implementation, the press tool unloading device 5 includes an electromagnet and a lifting and lateral movement motor module. The electromagnet is used to adsorb the press tool 2, and the lifting and lateral movement motor module is used to drive the press tool 2 to move.

[0097] Specifically, when the loading end of the conveyor 3 delivers the workpiece to be pressed, the press 2 needs to be placed on the surface of the battery cell, and then after welding, the press 2 needs to be recovered at the discharge end of the conveyor 3 and then transported to the loading end of the conveyor 3; that is, the conveying direction of the conveyor 3 is opposite to that of the press 2. The loading, unloading and returning of the press 2 are realized by setting a return device, a press unloading device 5 and a press loading device 6, and used in conjunction with the conveyor 3 to ensure the recycling demand of the press 2 in the welding process of the battery cell.

[0098] In addition, in the present embodiment, the serial connection equipment further includes a solder tape traction device and a battery cell loading and conveying device. The discharge end of the battery cell loading and conveying device is arranged corresponding to the discharge end of the press return device 4. The battery cell loading device is used to provide battery cells. The press loading device 6 is provided with a press moving mechanism and a battery cell moving mechanism. The press moving mechanism is used to pick up the press. The battery cell moving mechanism is used to pick up the battery cell. The press loading device 6 is used to drive the press 2 and the battery cell to move to the conveying device 3. The solder tape traction device is used to provide the solder tape to the conveying device 3. The press loading device 6 and the solder tape traction device stack the press 2, the solder tape and the battery cell on the conveying device 3.

[0099] In one implementation, the solder strip traction device includes a moving module consisting of a motor and a slide rail and a chuck installed on the moving module for clamping the solder strip, the clamping and loading device includes a conveying module, the battery cell moving mechanism includes a suction cup, the press moving mechanism includes an electromagnet for adsorbing the press, and the battery cell moving mechanism and the press moving mechanism are both installed on the conveying module. The conveying module can be a moving structure composed of a lifting and translational module, such as a lifting and translational moving mechanism composed of a motor and a slide rail, or it can be a three-axis, four-axis, five-axis or six-axis manipulator.

[0100] By using the welding tape traction device, the battery cell feeding and conveying device and the press return device 4 in coordination, it is ensured that at the feeding port of the conveying device 3, the battery cell is pressed onto the welding tape, and the press 2 is pressed onto the battery cell, forming a fixed crimping structure, which is convenient for the implementation of the subsequent welding process.

[0101] As an implementation method of the present application, a magnetic attraction component is provided on the press 2, and the conveying device 3 includes a conveyor belt and a support plate. The conveyor belt is used to convey the battery cell, the welding strip and the press 2, and the support plate is used to support the conveyor belt. The support plate is provided with a magnetic component. By using the cooperation of the magnetic component, the stability of the crimping between the press 2 and the battery cell on the conveying device 3 can be enhanced to avoid misalignment during the subsequent transportation process. In addition, the support plate 111 is a non-magnetic component to ensure that the press 2 can be smoothly released from the support plate 111.

[0102] In one implementation, the frame 20 of the press 2 is provided with a magnetic attraction component, or the frame 20 of the press 2 and the pressing needle both contain a magnetic attraction component.

[0103] In one implementation, the magnetic attraction component may be iron, the magnetic component is a magnet, and the magnetic component is embedded on the support plate of the conveying device 3 .

[0104] In the above description of the present application, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" and the like should be understood in a broad sense. For example, with regard to the term "connection", 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 a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in the present application, those skilled in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.

[0105] According to the above description of the present application, those skilled in the art may also understand that the terms used below, such as "upper", "lower", "length", "width", "top", "bottom", "inside", "outside", "axial", "longitudinal", "horizontal", "clockwise" or "counterclockwise", etc., which indicate 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 explanation of the scheme 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 a specific orientation, so the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limiting the scheme of the present application.

[0106] In addition, the terms "first" or "second" used in this application to refer to numbers or ordinals are only used for convenience of description and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. At the same time, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0107] Although multiple embodiments of the present application have been shown and described herein, it will be appreciated by those skilled in the art that such embodiments are provided only by way of example. Those skilled in the art may think of many changes, modifications and alternatives without departing from the thought and spirit of the present application. It should be understood that in the process of practicing the present application, various alternatives to the embodiments of the present application described herein may be adopted. The attached claims are intended to define the scope of protection of the present application, and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A supporting mechanism, characterized in that: The supporting mechanism comprises: Two support plate assemblies for supporting the pressing tool are arranged opposite to each other on two sides of the conveying device and define a supporting surface, wherein the supporting surface is higher than the conveying surface of the conveying device; A driving element, the driving element is used to drive the two support plate assemblies to move closer to each other or away from each other, When the two pallet assemblies approach each other, the two pallet assemblies support the press, and make at least part of the elastic pressure pins of the press contact with the workpiece to be pressed being transported by the conveying device; when the two pallet assemblies move away from each other, the two pallet assemblies release the press, and all the elastic pressure pins on the press contact with the workpiece to be pressed being transported by the conveying device.

2. The supporting mechanism according to claim 1, characterized in that: The supporting mechanism includes one driving element, and the driving element includes two driving ends, one driving end is connected to one pallet assembly, and the other driving end is connected to another pallet assembly; or the supporting mechanism includes two driving elements, and the driving end of each driving element is connected to one pallet assembly.

3. The supporting mechanism according to claim 2, characterized in that: The driving element comprises a telescopic cylinder, and the driving end is a piston rod of the telescopic cylinder.

4. The supporting mechanism according to claim 1, characterized in that: The support plate assembly includes a support plate and a connecting piece, wherein the connecting piece is connected to the driving end of the driving element, the support plate is connected to the connecting piece, and the support plate is parallel to the conveying surface.

5. The supporting mechanism according to claim 4, characterized in that: The connecting member comprises a connecting plate, on which a first waist hole extending vertically is arranged. The connecting plate is mounted on the driving end of the driving element through the first waist hole.

6. The supporting mechanism according to claim 5, characterized in that: The connecting member further comprises a connecting block, which is arranged between the connecting plate and the driving element. The connecting block is connected to the connecting plate through the first waist hole, and the driving end of the driving element is connected to the connecting block.

7. The supporting mechanism according to claim 4, characterized in that: The support plate is provided with a second waist hole, the extension direction of the second waist hole is the same as the movement direction of the support plate assembly, and the support plate is installed on the connecting member through fixing bolts and the second waist hole.

8. The supporting mechanism according to claim 4, characterized in that: The supporting mechanism further includes a buffer mechanism, which is disposed on the connecting member and is used to form a buffer when the connecting member moves toward the driving element.

9. The supporting mechanism according to claim 8, characterized in that: The buffer mechanism includes a buffer and a buffer limiter. The buffer is installed on a side of the connecting member close to the conveying device. The buffer limiter is arranged on a moving path of the buffer. When the connecting member moves toward the conveying device to a preset distance, the buffer abuts against the buffer limiter.

10. The supporting mechanism according to claim 1, characterized in that: A coating is provided on the supporting surface of the support plate assembly.

11. The supporting mechanism according to claim 1, characterized in that: An inclined section is arranged on the supporting surface of the pallet assembly, and the horizontal height of the inclined section gradually decreases from a side away from the conveying device to a side close to the conveying device.

12. A serial connection device, characterized in that: The serial connection device comprises: A serial connection device, a conveying device, a pressing device, and a supporting mechanism according to any one of claims 1 to 11; The press is supported by the supporting mechanism, and the two support plate assemblies can be driven to move away from each other until the press is released from the supporting surface. The press comprises a frame and elastic pressure pins, and the elastic pressure pins are mounted on the frame and extend in a direction perpendicular to the conveying surface. When the two support plate assemblies approach each other, the two support plate assemblies support the press, and at least part of the elastic pressure pins of the press are in contact with the workpiece to be pressed being conveyed by the conveying device; when the two support plate assemblies move away from each other, the two support plate assemblies release the press, and all the elastic pressure pins on the press are in contact with the workpiece to be pressed being conveyed by the conveying device. The serial connection device serially connects the crimping parts conveyed by the conveying device into a battery string.

13. The serial connection device according to claim 12, characterized in that: The elastic pressure pins are arranged in rows, and each row of the elastic pressure pins corresponds to a welding strip; the elastic pressure pins include first elastic pressure pins with a first length and second elastic pressure pins with a second length, and the first length is greater than the second length.

14. The serial connection device according to claim 13, characterized in that: Each row of elastic pressure pins includes a first elastic pressure pin and a second elastic pressure pin, wherein: The first part of each row of elastic pressing pins is the second elastic pressing pin, and the rest of the rows are the first elastic pressing pins; or, The tail of each row of elastic pressing pins is the second elastic pressing pin, and the rest of the rows are the first elastic pressing pins; or, The head and tail of each row of elastic pressing pins are second elastic pressing pins, and the rest are first elastic pressing pins; or, the head of each row of elastic pressing pins is second elastic pressing pins, and the rest are first elastic pressing pins and second elastic pressing pins alternately arranged.

15. The serial connection device according to claim 12, characterized in that: The frame is provided with a through hole; or, A through hole is provided in the middle of the elastic pressing pin; or, a through hole is provided in the middle of both the frame and the elastic pressing pin.

16. The serial connection device according to claim 12, characterized in that: The serial connection device also includes a press return device, a press unloading device and a press loading device; The loading end of the press return device corresponds to the discharging end of the conveying device, and the discharging end of the press return device corresponds to the loading end of the conveying device; The press unloading device is arranged between the discharge end of the conveying device and the loading end of the press return device, and the press unloading device is used to transport the press on the conveying device to the loading end of the press return device; The press loading device is arranged between the loading end of the conveying device and the discharging end of the press return device, and is used for transporting the discharging end of the press return device to the loading end of the conveying device.

17. The serial connection device according to claim 16, characterized in that: The serial connection device further includes a welding ribbon pulling device and a battery cell feeding and conveying device. The discharge end of the battery cell feeding and conveying device is arranged corresponding to the discharge end of the press return device. The battery cell feeding device is used to provide battery cells. The press feeding device is provided with a press moving mechanism and a battery cell moving mechanism, the press moving mechanism is used to pick up the press, the battery cell moving mechanism is used to pick up the battery cell, and the press feeding device is used to drive the press and the battery cell to move to the conveying device. The solder tape traction device is used to provide the solder tape to the conveying device, and the press feeding device and the solder tape traction device stack the press, the solder tape and the battery cell onto the conveying device.

18. The serial connection device according to claim 12, characterized in that: The press is provided with a magnetic attraction component, the conveying device is provided with a magnetic component, and the support plate is a non-magnetic component.

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