Solder strip supply device for series welding of battery pieces

Abstract

The utility model discloses a welding strip supply device for series welding of battery pieces. The welding strip supply device comprises a welding strip guiding-out mechanism, a welding strip clamping mechanism and a movable supporting mechanism. The welding strip is output from the tail end of the welding strip leading-out mechanism; the welding strip clamping mechanism clamps the welding strip at the tail end of the welding strip leading-out mechanism and drives the welding strip to move; a supporting plate of the movable supporting mechanism is arranged below the welding strip, a groove with two open ends is formed in the top of the supporting plate in the moving direction of the welding strip, and the welding strip is arranged in the groove; at least one end of the groove is provided with a horn mouth. The welding strip feeding device can accurately support and convey the welding strip.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cell production, and more specifically to a welding strip supply device for battery cell series welding. Background Art

[0002] In the production process of crystalline silicon solar photovoltaic cell modules, the first step is the cell string welding process. During string welding, the front side of the cell is welded to the back side of the adjacent cell with welding ribbon to form a cell string. The cell string after string welding goes through the processes of layout, busbar welding, and laying of insulating film before entering the lamination process.

[0003] In the production process of solar cell strings, circular welding ribbons are generally used to connect the front and back sides of adjacent cells. Currently, the welding ribbon is driven to move to the surface of the cell by a welding ribbon clamping mechanism, and the welding ribbon is placed in the groove of the welding ribbon support plate during the movement of the welding ribbon with the welding ribbon clamping mechanism, which plays a supporting role for the welding ribbon. However, due to the large number of welding ribbons, the welding ribbon is prone to deviation when it corresponds to the groove of the welding ribbon support plate, and the welding ribbon cannot accurately enter the groove of the welding ribbon support plate.

[0004] Therefore, it is an urgent problem for technical personnel in this field to develop a soldering ribbon supply device for battery cell string welding that can accurately support and transmit the soldering ribbon. Utility Model Content

[0005] In view of this, the utility model provides a welding ribbon supply device for battery cell string welding, which can accurately support and transmit the welding ribbon.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A welding ribbon supply device for battery cell string welding, comprising:

[0008] A welding strip output mechanism, from which the welding strip is outputted at the end thereof;

[0009] A solder strip clamping mechanism, which clamps the solder strip at the end of the solder strip outlet mechanism and drives the solder strip to move;

[0010] A movable support mechanism, wherein the support plate of the movable support mechanism is placed below the welding strip, a groove with two ends opened is provided on the top of the support plate along the moving direction of the welding strip, and the welding strip is placed in the groove; and a bell mouth is provided at least at one end of the groove.

[0011] The beneficial effect of adopting the above technical solution is that in the utility model, a bell mouth is set at the end of the groove. When the welding strip is offset, as long as the offset range is within the bell mouth, the welding strip will enter the groove under the guidance of the bell mouth, which can increase the accuracy of the welding strip entering the groove.

[0012] Preferably, the mobile support mechanism is further provided with a first cylinder, which is provided at the bottom of the support plate and drives the support plate to move up and down. The first cylinder can drive the support plate to move up and down to achieve the connection of the welding strip.

[0013] Preferably, the mobile support mechanism is further provided with a slide rail and a horizontal moving assembly, the slide rail is arranged along the moving direction of the welding strip; the first cylinder is slidably connected to the top of the slide rail; the horizontal moving assembly is connected to the first cylinder and drives the first cylinder to move along the slide rail. Under the action of the horizontal moving assembly, the first cylinder can be driven to move on the slide rail, realizing the synchronous movement of the support plate with the welding strip clamping mechanism, so that the welding strip can be accurately transported.

[0014] Preferably, two opposite side walls of the groove are provided with corresponding blocks, and the solder strip is placed in the groove and below the blocks. The blocks can limit the position of the solder strip to prevent the solder strip from falling out of the groove during movement.

[0015] Preferably, the distance between the two opposite clamping blocks is smaller than the cross-sectional dimension of the welding strip.

[0016] Preferably, a receiving plate is provided below the support plate, and the receiving plate is connected to the telescopic end of the first cylinder.

[0017] Preferably, a second cylinder is provided inside the receiving plate, and the telescopic end of the second cylinder contacts the bottom of the support plate. The second cylinder can lift the support plate in a small range. When the support plate rises to contact the welding strip, the second cylinder lifts the support plate so that the height of the support plate is slightly higher than the height of the welding strip. Due to the tightening of the welding strip clamping mechanism, the welding strip can easily pass through the block and be placed in the groove.

[0018] Preferably, a limiting rod is provided on the top of the support plate, and the bottom of the limiting rod passes through the support plate and the receiving plate in sequence; a limiting plate is provided on the bottom of the limiting rod, and the limiting plate is placed below the receiving plate.

[0019] Preferably, a spring is sleeved on the outside of the limit rod, and two ends of the spring are respectively in contact with the receiving plate and the limit plate. When the second cylinder is retracted, the support plate will be reset under the action of the spring.

[0020] Preferably, the solder strip discharging mechanism, solder strip clamping mechanism and movable support mechanism are all arranged in an operating box, and a through-beam sensor is arranged at a position corresponding to the support plate on two opposite side walls of the operating box, and the through-beam sensor is used to detect the lifting and lowering status of the support plate.

[0021] It can be seen from the above technical solutions that, compared with the prior art, the utility model discloses a welding ribbon supply device for battery cell string welding, which has the following beneficial effects:

[0022] (1) In the utility model, the setting of the bell mouth allows the welding strip to accurately enter the groove, which can improve the accuracy of the welding strip transmission process;

[0023] (2) Under the joint action of the first cylinder and the second cylinder, the accuracy of the lifting distance of the support plate can be improved, so that the welding strip can accurately enter the groove for transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 The accompanying drawing is a structural schematic diagram of the welding strip supply device provided by the utility model in a state where the first cylinder is contracted;

[0026] Figure 2 The accompanying drawing is a structural schematic diagram of the welding strip supply device provided by the utility model in a state where the first cylinder is extended;

[0027] Figure 3 The accompanying drawings are provided by the utility model Figure 2 A top view of the middle welding strip supply device;

[0028] Figure 4 The accompanying drawing is a top view of the support plate provided by the utility model;

[0029] Figure 5 The accompanying drawings are provided by the utility model Figure 4 Right side view of the middle support plate;

[0030] Figure 6 The accompanying drawing is a schematic diagram of the internal structure of the first cylinder and the support plate provided by the utility model in the connected state.

[0031] Among them, in the figure,

[0032] 1-welding strip export mechanism; 2-welding strip; 3-welding strip clamping mechanism;

[0033] 4-Mobile support mechanism;

[0034] 41-support plate;

[0035] 411-groove; 412-bell mouth; 413-block;

[0036] 42-first cylinder; 43-slide rail; 44-spring; 45-support plate; 46-second cylinder; 47-limit rod; 48-limit plate;

[0037] 5-operation box; 6-through-beam sensor; 7-battery panel. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] The utility model discloses a welding ribbon supply device for battery cell series welding, comprising:

[0040] A solder strip outlet mechanism 1, wherein the solder strip 2 is output from a terminal end of the solder strip outlet mechanism 1;

[0041] The solder strip clamping mechanism 3 clamps the solder strip 2 at the end of the solder strip outlet mechanism 1 and drives the solder strip 2 to move;

[0042] The mobile support mechanism 4, the support plate 41 of the mobile support mechanism 4 is placed below the welding strip 2, the top of the support plate 41 is provided with a groove 411 with two ends opened along the moving direction of the welding strip 2, the welding strip 2 is placed in the groove 411; at least one end of the groove 411 is provided with a bell mouth 412.

[0043] In order to further optimize the above technical solution, the solder strip discharging mechanism 1, the solder strip clamping mechanism 3, and the horizontal moving assembly are all the same as the structure in the existing solder strip supply device. The solder strip clamping mechanism 3 drives the clamping structure to move horizontally and up and down through the cylinder to realize the transmission of the solder strip 2. The horizontal moving assembly is also driven by the cylinder to drive the first cylinder 41 to move in the slide rail 43.

[0044] In order to further optimize the above technical solution, a cutter is provided at the end of the solder strip leading-out mechanism 1, and when the solder strip 2 is led out a certain distance, it is cut off by the cutter.

[0045] In order to further optimize the above technical solution, the mobile support mechanism 4 is further provided with a first cylinder 42, which is provided at the bottom of the support plate 41 and drives the support plate 41 to move up and down. The first cylinder 42 and the second cylinder 46 work together to make the support plate 41 rise more accurately, and ensure that the welding strip 2 can accurately enter the groove 411.

[0046] In order to further optimize the above technical solution, the mobile support mechanism 4 is also provided with a slide rail 43 and a horizontal moving assembly, the slide rail 43 is arranged along the moving direction of the welding strip 2; the first cylinder 42 is slidably connected to the top of the slide rail 43; the horizontal moving assembly is connected to the first cylinder 42, and drives the first cylinder 42 to move along the slide rail 43.

[0047] In order to further optimize the above technical solution, two opposite side walls of the groove 411 are correspondingly provided with a clamping block 413, and the welding strip 2 is placed in the groove 411 and below the clamping block 413. The clamping block 413 is made of rubber material and has a certain flexibility, which facilitates the placement of the welding strip 2.

[0048] In order to further optimize the above technical solution, the distance between the two opposite blocks 413 is smaller than the cross-sectional dimension of the welding strip 2. The welding strip 2 is generally cylindrical, and the distance between the two blocks 413 is smaller than the diameter of the cross-sectional dimension of the welding strip 2. The blocks 413 can be arranged at both ends of the groove 411.

[0049] In order to further optimize the above technical solution, a receiving plate 45 is provided below the supporting plate 41 , and the receiving plate 45 is connected to the telescopic end of the first cylinder 42 .

[0050] In order to further optimize the above technical solution, a second cylinder 46 is disposed inside the receiving plate 45, and the telescopic end of the second cylinder 46 contacts the bottom of the support plate 41. The telescopic end of the second cylinder 46 abuts against the support plate 41, and the second cylinder 46 extends to lift the support plate 41. After the second cylinder 46 is retracted, the support plate 41 can be driven to return to its original position under the action of the spring 44.

[0051] In order to further optimize the above technical solution, a limiting rod 47 is set on the top of the support plate 41, and the bottom of the limiting rod 47 passes through the support plate 41 and the receiving plate 45 in sequence; a limiting plate 48 is set at the bottom of the limiting rod 47, and the limiting plate 48 is placed below the receiving plate 45.

[0052] In order to further optimize the above technical solution, a spring 44 is sleeved on the outside of the limiting rod 47 , and two ends of the spring 44 are respectively in contact with the receiving plate 45 and the limiting plate 48 .

[0053] In order to further optimize the above technical solution, the welding strip lead-out mechanism 1, the welding strip clamping mechanism 3 and the movable support mechanism 4 are all arranged in the operation box 5. The two opposite side walls of the operation box 5 are provided with a shooting sensor 6 at the position corresponding to the support plate 41. The shooting sensor 6 is used to detect the lifting and lowering of the support plate 41. The shooting sensor 6 can detect whether the support plate 41 is lifted up, which can improve the accuracy of the welding strip 2 transmission process. The height of the shooting sensor 6 is located at the gap between the receiving plate 45 and the support plate 41 after the first cylinder 42 lifts the receiving plate 45. When the support plate 41 is lifted up by the second cylinder 46, the signal transmitted by the shooting sensor 6 can be received. If the second cylinder 46 fails, the support plate 41 is not lifted up. At this time, there is no gap between the support plate 41 and the receiving plate 45, and the signal between the two shooting sensors 6 cannot be transmitted.

[0054] Working principle:

[0055] After the soldering tape 2 enters the soldering tape outlet mechanism 1, it is led out from the end. The soldering tape clamping mechanism 3 clamps the soldering tape 2 at the end of the soldering tape outlet mechanism 1 and moves toward the battery cell 7. The soldering tape clamping mechanism 3 stops after moving a certain distance. The first cylinder 42 drives the receiving plate 45 to move upward. At this time, the second cylinder 46 is in an extended state, and the support plate 41 is lifted up with a gap between it and the receiving plate 45. After the first cylinder 42 moves into place, the soldering tape 2 is correspondingly placed in the groove 411. At this time, the second cylinder 46 is reset, and the support plate 41 is lowered and reset. Then the cutter positions the soldering tape 2 at the end of the soldering tape outlet mechanism 1. Cut off; then the solder strip clamping mechanism 3 continues to move, at this time the horizontal moving assembly drives the first cylinder 42 to move on the slide rail 43, and moves synchronously with the solder strip holding mechanism 3. When it moves close to the battery cell 7, the horizontal moving assembly 44 stops moving, and the solder strip clamping mechanism 3 continues to move to pull the solder strip 2 out of the groove 411, and place the solder strip 2 on the top of the battery cell 7. Then the solder strip clamping mechanism 3 is reset to perform the next operation of clamping the solder strip 2. The first cylinder 42 drives the receiving plate 45 to descend, and then the horizontal moving assembly 44 drives the first cylinder 42 to reset, waiting for the next operation of conveying the solder strip 2.

[0056] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0057] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding ribbon supply device for battery cell string welding, characterized in that: include: A welding strip output mechanism (1), wherein the welding strip (2) is output from a terminal end of the welding strip output mechanism (1); A welding strip clamping mechanism (3), the welding strip clamping mechanism (3) clamps the welding strip (2) at the end of the welding strip outlet mechanism (1) and drives the welding strip (2) to move; A movable support mechanism (4), wherein a support plate (41) of the movable support mechanism (4) is placed below the welding strip (2), a groove (411) with two ends opened is provided at the top of the support plate (41) along the moving direction of the welding strip (2), and the welding strip (2) is placed in the groove (411); at least one end of the groove (411) is provided with a bell mouth (412); the movable support mechanism (4) is also provided with a first cylinder (42), the first cylinder (42) is arranged at the bottom of the support plate (41) and drives the support plate (41) to move up and down; the movable support mechanism (4) is also provided with a slide rail (43) and a horizontal moving assembly, the slide rail (43) is arranged along the moving direction of the welding strip (2); the first cylinder (42) is slidably connected to the top of the slide rail (43); the horizontal moving assembly is connected to the first cylinder (42) and drives the first cylinder (42) to move along the slide rail (43).

2. A welding ribbon supply device for battery cell string welding according to claim 1, characterized in that: Blocks (413) are correspondingly arranged on two opposite side walls of the groove (411), and the welding strip (2) is placed in the groove (411) and below the block (413).

3. A welding ribbon supply device for battery cell string welding according to claim 2, characterized in that: The distance between the two opposite clamping blocks (413) is smaller than the cross-sectional dimension of the welding strip (2).

4. The welding ribbon supply device for battery cell string welding according to claim 1, characterized in that: A receiving plate (45) is provided below the support plate (41), and the receiving plate (45) is connected to the telescopic end of the first cylinder (42).

5. A welding ribbon supply device for battery cell string welding according to claim 4, characterized in that: A second cylinder (46) is arranged inside the receiving plate (45), and a telescopic end of the second cylinder (46) is in contact with the bottom of the supporting plate (41).

6. A welding ribbon supply device for battery cell string welding according to claim 5, characterized in that: A limiting rod (47) is provided at the top of the support plate (41), and the bottom of the limiting rod (47) passes through the support plate (41) and the receiving plate (45) in sequence; a limiting plate (48) is provided at the bottom of the limiting rod (47), and the limiting plate (48) is placed below the receiving plate (45).

7. A welding ribbon supply device for battery cell string welding according to claim 6, characterized in that: A spring (44) is sleeved on the exterior of the limiting rod (47), and two ends of the spring (44) are respectively in contact with the receiving plate (45) and the limiting plate (48).

8. The welding ribbon supply device for battery cell string welding according to claim 1, characterized in that: The solder strip outlet mechanism (1), the solder strip clamping mechanism (3) and the movable support mechanism (4) are all arranged in an operation box (5); and a beam sensor (6) is arranged at positions corresponding to the support plate (41) on two opposite side walls of the operation box (5); the beam sensor (6) is used to detect the lifting and lowering condition of the support plate (41).

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