Battery piece moving mechanism, battery piece collecting device and battery string series connection equipment

Abstract

The utility model provides a battery piece moving mechanism, a battery piece collecting device and battery string series connection equipment. The battery piece moving mechanism comprises a moving module, a pressing module, a mounting bracket, a battery piece adsorption assembly and an isolation paper adsorption assembly. The mounting bracket is in transmission connection with a movable part of the movable module; the downward pressing module and the battery piece adsorption assembly are both installed on the installation support, and the isolation paper adsorption assembly is installed on a movable part of the downward pressing module. The battery piece adsorption assembly is used for adsorbing battery pieces, and the pressing module drives the isolation paper adsorption assembly to downwards extend out of the battery piece adsorption assembly so as to adsorb isolation paper; and the mobile module drives the battery piece adsorption assembly and the isolation paper adsorption assembly to synchronously transversely move and lift through the mounting bracket. According to the battery piece moving mechanism, carrying and discharging of the battery pieces are achieved, the isolation paper can be carried and padded on the battery pieces alternately in the discharging process, and therefore the equipment cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic cell production, and specifically to a cell moving mechanism, a cell collecting device, and a cell string connection device. Background Art

[0002] After the battery cells are processed, for example, after a large-sized battery cell is cut into small-sized battery cells, the battery cells need to be temporarily stored in a tray. In order to prevent cross contamination between stacked battery cells, a piece of isolation paper needs to be stacked between adjacent battery cells.

[0003] The current solution is to set up independent battery cell moving mechanisms and isolation paper picking and placing mechanisms, where the battery string unloading mechanism is used to store the processed battery cells in the material tray, and the isolation paper picking and placing mechanism is used to stack the isolation paper on the battery cells. Setting up the battery string unloading mechanism and isolation paper picking and placing mechanism at the same time increases the equipment cost, and the battery string unloading mechanism and isolation paper picking and placing mechanism are prone to collision during movement. Utility Model Content

[0004] In view of the above problems existing in the traditional battery cell moving mechanism, the present application provides a battery cell moving mechanism, and its detailed technical solution is as follows:

[0005] A battery cell moving mechanism includes a moving module, a pressing module, a mounting bracket, a battery cell adsorption component and a separation paper adsorption component, wherein:

[0006] The mounting bracket is transmission-connected to the movable part of the moving module;

[0007] The pressing module and the battery cell adsorption assembly are both installed on the mounting bracket, and the isolation paper adsorption assembly is installed on the movable part of the pressing module;

[0008] The battery cell adsorption assembly is used to adsorb the battery cell, and the downward pressing module drives the isolation paper adsorption assembly to extend the battery cell adsorption assembly downward to adsorb the isolation paper;

[0009] The mobile module drives the battery cell adsorption component and the isolation paper adsorption component to move horizontally and rise and fall synchronously through the mounting bracket.

[0010] The cell moving mechanism in the embodiment of the present application can not only implement the transportation and unloading of the cell, but also can intersperse the isolation paper transport pad onto the cell during the unloading process, thereby reducing the equipment cost. In addition, since the isolation paper adsorption component and the cell adsorption component are driven by the same moving module to translate and rise and fall, there is no contact between the two.

[0011] In some embodiments, the battery cell moving mechanism also includes a rotating module, which is installed on the movable part of the moving module, and the mounting bracket is installed on the movable part of the rotating module; the rotating group drives the battery cell adsorption assembly and the isolation paper adsorption assembly to rotate synchronously in the horizontal plane through the mounting bracket.

[0012] By setting up a rotating module, the angle adjustment of the battery cell adsorption assembly and the isolation paper adsorption assembly is achieved, thereby ensuring that the battery cell adsorption assembly and the isolation paper adsorption assembly can smoothly absorb the battery cell and the isolation paper, and completing the angle adjustment of the battery cell and the isolation paper according to the placement requirements during the transportation process, ensuring that the battery cell and the isolation paper are placed at the battery cell storage position at a predetermined angle. In addition, by setting up a rotating assembly, the angle rotation of the battery cell is achieved, thereby achieving the polarity adjustment of the battery cell.

[0013] In some embodiments, the pressing module includes a driving part and a transmission part. The driving part is installed on the movable part of the moving module, and the transmission part is connected to the isolation paper adsorption assembly; the isolation paper adsorption assembly is located on the peripheral side of the battery cell adsorption assembly; the driving part pushes the isolation paper adsorption assembly downward through the transmission part, so that the adsorption end of the isolation paper adsorption assembly extends downward from the battery cell adsorption assembly.

[0014] A simple-structured downward pressing module is provided, which pushes the separation paper adsorption assembly downward through the cooperation of the driving part and the transmission part, so that the adsorption end of the separation paper adsorption assembly extends downward from the battery cell adsorption assembly. In addition, by arranging the separation paper adsorption assembly on the peripheral side of the battery cell adsorption assembly, the separation paper adsorption assembly adsorbs the separation paper from the peripheral direction, ensuring that the adsorbed separation paper is in a horizontal state, and preventing the separation paper from being bent when placed on the battery cell.

[0015] In some embodiments, the battery cell adsorption assembly includes a first mounting plate and a first suction cup, wherein the first mounting plate is fixedly connected to the lower end of the mounting bracket, and the first suction cup is arranged on the lower surface of the first mounting plate; the isolation paper adsorption assembly includes a second mounting plate, a plurality of second suction cups and a plurality of buffer connectors, wherein the second mounting plate can be raised and lowered connected to the mounting bracket, the plurality of second suction cups are circumferentially arranged on the second mounting plate and located on the peripheral side of the first mounting plate, the lower end of the buffer connector is connected to the first mounting plate, and the upper end of the buffer connector is connected to the second mounting plate; when the pressing module pushes the second mounting plate downward, the buffer connector is compressed and contracted, and the adsorption end of the second suction cup extends downward from the first suction cup; when the pressing module detaches from the second mounting plate, the buffer connector loses pressure and rebounds, and the second mounting plate rises and resets to drive the adsorption ends of each second suction cup to retract upward to above the first suction cup.

[0016] By connecting the second mounting plate to the mounting bracket in a levitation manner and arranging a buffer assembly between the first mounting plate and the second mounting plate, it is achieved that when the lower die set pushes the second mounting plate downward, the adsorption end of the second suction cup can extend downward from the first suction cup to adsorb the release paper. When the die set is separated from the second mounting plate, the buffer connector loses pressure and rebounds, thereby pushing the second mounting plate to rise and reset.

[0017] In some embodiments, the first suction cup is a Bernoulli suction cup, and the second suction cup is a columnar suction cup extending in a vertical direction.

[0018] The Bernoulli suction cup has the advantages of strong suction force and stable suction. Therefore, the Bernoulli suction cup is used as the first suction cup to ensure stable suction and handling of the battery cell. The columnar suction cup is used as the second suction cup, so that the second suction cup can surround the first suction cup in the circumferential direction, and the suction end of the second suction cup can fully extend downward from the first suction cup.

[0019] In some embodiments, the buffer connection member includes a guide rod and a spring, wherein the lower end of the guide rod is fixedly connected to the first mounting plate, the upper end of the guide rod is movably connected to the second mounting plate, the spring is sleeved on the guide rod, the lower end of the spring abuts against the first mounting plate, and the upper end of the spring abuts against the second mounting plate.

[0020] A buffer connector with a simple structure is provided, which realizes a buffer connection between a second mounting plate and a first mounting plate, and realizes the lifting and lowering guidance of the second mounting plate, and finally ensures that each second suction cup arranged along the circumferential direction can contact and absorb the isolation paper.

[0021] In some embodiments, the battery cell moving mechanism also includes a connecting bracket and an air supply pipeline, wherein: the upper end of the connecting bracket is rotatably connected to the movable part of the moving module via a rotating connecting piece, and the lower end of the connecting bracket is fixedly connected to the mounting bracket; the air supply pipeline is arranged on the connecting bracket, the upper end of the air supply pipeline is connected to the air supply mechanism, and the lower end of the air supply pipeline is connected to the suction cup of the battery cell adsorption assembly; when the rotating module drives the battery cell adsorption assembly and the isolation paper adsorption assembly to rotate, the connecting bracket rotates synchronously driven by the mounting bracket.

[0022] By setting up the air supply pipeline, the air supply to the suction cup of the battery cell adsorption assembly is realized, so that the battery cell adsorption assembly can adsorb the battery cell. The connection bracket carrying the air supply pipeline is arranged to rotate synchronously with the mounting bracket, so as to ensure that the air supply pipeline remains in its original state and prevent the air supply pipeline from rotating relative to the mounting bracket, causing the air supply pipeline to be twisted or damaged.

[0023] The present application also provides a battery cell collecting device, which includes the battery cell moving mechanism and the battery cell storage mechanism described in any of the above items, wherein: the battery cell storage mechanism includes a mounting bracket and an isolation paper supply tray and a battery cell storage tray arranged on the mounting bracket; the battery cell moving mechanism is used to stack the battery cells on the battery cell storage tray through a battery cell adsorption component; after each battery cell is stacked on the battery cell storage tray, the battery cell moving mechanism is also used to absorb a piece of isolation paper from the isolation paper supply tray through the isolation paper adsorption component, and stack the absorbed isolation paper on the battery cell.

[0024] The cell collecting device provided in the present application realizes automatic cell collection, and during the cell collection process, isolation paper transfer pads are interspersed and placed on the cell to prevent cross contamination between adjacent cell sheets.

[0025] In some embodiments, two battery cell storage trays are provided, and the two battery cell storage trays are used to classify and store two different types of battery cells.

[0026] By providing two battery cell storage trays, two different types of battery cells can be collected in a classified manner.

[0027] The present application also provides a battery string connection device, which is used to connect back-contact battery cells in series into battery strings. The battery string connection device is any one of the battery cell collection device, battery cell feeding and conveying device, battery cell feeding and handling device, welding ribbon feeding device, string connection conveying device and string connection device.

[0028] The battery cell collecting device is used to adjust the polarity of the battery cells conveyed by the battery cell loading and conveying device, and to remove unqualified battery cells from the battery cell loading and conveying device. The battery cell loading and conveying device is used to convey the battery cells to the battery cell loading and conveying device. The battery cell loading and conveying device and the solder strip feeding device are used to stack the battery cells and solder strips according to the stringing rules and put them into the series conveying device. The series conveying device conveys the stacked battery cells and solder strips to the series connection device, and the series connection device welds the battery cells and solder strips into strings.

[0029] The battery cell collecting device provides qualified battery cells after polarity adjustment and screening to the battery cell loading and conveying device. The battery cell loading and conveying device and the solder strip loading device can cooperate with each other to lay the battery cells and solder strips according to the stringing rules onto the stringing conveying device. The stringing device completes the welding of the battery cells into strings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the battery cell moving mechanism in the embodiment of the present application;

[0031] Figure 2 It is a structural schematic diagram of the battery cell moving mechanism in an embodiment of the present application after the moving module is omitted at one viewing angle;

[0032] Figure 3 It is a structural schematic diagram of the battery cell moving mechanism in another perspective after the moving module is omitted in the embodiment of the present application;

[0033] Figure 4 It is a structural schematic diagram of a battery cell collecting device in an embodiment of the present application at a viewing angle;

[0034] Figure 5 is a schematic structural diagram of the battery cell collecting device in the embodiment of the present application from another viewing angle;

[0035] Figures 1 to 5 Included:

[0036] Battery sheet moving mechanism 10:

[0037] Mobile module 1:

[0038] Translation drive module 11, lifting drive module 12, mounting plate 13;

[0039] Press down module 2:

[0040] Driving unit 21;

[0041] Mounting bracket 3;

[0042] Battery cell adsorption component 4:

[0043] A first mounting plate 41 and a first suction cup 42;

[0044] Release paper adsorption component 5:

[0045] A second mounting plate 51, a second suction cup 52, and a buffer connection member 53;

[0046] Rotating module 6;

[0047] Connecting bracket 7;

[0048] Rotating connecting piece 8:

[0049] Battery cell storage mechanism 20:

[0050] Mounting bracket 201;

[0051] Release paper supply tray 202;

[0052] Battery cell storage tray 203. DETAILED DESCRIPTION

[0053] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0054] like Figures 1 to 3 As shown, the cell moving mechanism 10 in the embodiment of the present application includes a moving module 1, a pressing module 2, a mounting bracket 3, a cell adsorption component 4 and a separation paper adsorption component 5, wherein:

[0055] The mounting bracket 3 is drivingly connected to the movable part of the moving module 1 .

[0056] The pressing module 2 and the battery cell adsorption assembly 4 are both mounted on the mounting bracket 3 , and the isolation paper adsorption assembly 5 is mounted on the movable part of the pressing module 2 .

[0057] The cell adsorption assembly 4 is used to adsorb the cell, and the pressing module 2 is used to drive the isolation paper adsorption assembly 5 to extend downward from the cell adsorption assembly 4 to adsorb the isolation paper.

[0058] The mobile module 1 drives the battery cell adsorption assembly 4 and the isolation paper adsorption assembly 5 to move horizontally and rise and fall synchronously through the mounting bracket 3 .

[0059] The optional working process of the battery cell moving mechanism 10 in the embodiment of the present application is as follows:

[0060] In the initial state, the isolation paper adsorption assembly 5 is in a high avoidance position, and the adsorption assembly 5 is located above the battery cell adsorption assembly 4 .

[0061] When it is necessary to unload and transport the battery cells, the battery cell adsorption assembly 4 , driven by the mobile module 1 , adsorbs the battery cells to be unloaded from the battery cell unloading station and transports the adsorbed battery cells to the battery cell storage position.

[0062] Next, the pressing module 2 drives the isolation paper adsorption assembly 5 to descend, so that the isolation paper adsorption assembly 5 extends downward from the battery cell adsorption assembly 4. Subsequently, the isolation paper adsorption assembly 5, driven by the moving module 1, adsorbs a piece of isolation paper from the isolation paper storage position, and stacks the adsorbed isolation paper on the battery cell located at the battery cell storage position.

[0063] Then, the pressing module 2 ends the pressing drive on the release paper adsorption assembly 5, so that the release paper adsorption assembly 5 returns to the avoidance high position.

[0064] Repeat the above steps of transporting the battery cells and the isolation paper to complete the continuous unloading of the battery cells, and finally stack the battery cells that have been unloaded and transported to the battery cell storage position, with a piece of isolation paper placed between adjacent battery cells.

[0065] It can be seen that the cell moving mechanism 10 in the embodiment of the present application can not only implement the transportation and unloading of the cell, but also can intersperse the isolation paper between adjacent cell during the unloading process, thereby reducing the equipment cost. In addition, since the isolation paper adsorption component 4 and the cell adsorption component 5 are driven by the same moving module to translate and rise and fall, there is no contact between the two.

[0066] Figures 1 to 3 In the illustrated embodiment, the mobile module 1 includes a translation drive unit 11, a lifting drive unit 12 and a mounting plate 13, wherein the lifting drive unit 12 is connected to the driving end of the translation drive unit 11, the mounting plate 13 is connected to the driving end of the lifting drive unit 12, and the mounting bracket 3 is connected to the mounting plate 13. The translation drive unit 11 and the lifting drive unit 12 drive the mounting bracket 3 to translate and lift through the mounting plate 13, so as to drive the adsorption assembly 4 and the battery cell adsorption assembly 5 to translate and lift synchronously.

[0067] Of course, the mobile module 1 may also adopt other driving structures. For example, the mobile module 1 is a robotic arm, and the mounting bracket 3 is connected to the end of the robotic arm. The robotic arm drives the mounting bracket 3 to translate and rise and fall, thereby driving the adsorption component 4 and the battery cell adsorption component 5 to translate and rise and fall synchronously.

[0068] Optionally, the cell moving mechanism 10 in the embodiment of the present application further includes a rotating module 6, which is mounted on a movable part of the moving module 1, and the movable part of the moving module 1 is, for example, the mounting plate 13 in the above embodiment. The mounting bracket 3 is mounted on the movable part of the rotating module 6, and the rotating module 6 drives the cell adsorption assembly 4 and the isolation paper adsorption assembly 5 to rotate synchronously in the horizontal plane through the mounting bracket 3.

[0069] After the battery cell is cut into two halves from a whole piece, it is sometimes necessary to rotate one of the two battery cells 180 degrees to maintain consistency with the other battery cell, such as consistent polarity or consistent chamfering direction. The angle adjustment of the battery cell is achieved by rotating the rotating module 6. In the normal production process, the battery cell moving mechanism 10 only needs to adjust the angle of the battery cell to ensure the consistency of adjacent battery cells. When unqualified battery cells or specific battery cells that need to be removed appear, the battery cell moving mechanism 10 can also grab and remove the unqualified battery cells.

[0070] By setting up the rotating module 6, the angle adjustment of the battery cell adsorption component 4 and the isolation paper adsorption component 5 is realized, thereby ensuring that the battery cell adsorption component 4 and the isolation paper adsorption component 5 can smoothly absorb the battery cell and the isolation paper, and completing the angle adjustment of the battery cell and the isolation paper according to the placement requirements during the transportation process, and finally ensuring that the battery cell and the isolation paper are placed at the battery cell storage position according to the placement requirements.

[0071] The rotating module 6 may be, for example, a rotating motor, and the mounting bracket 3 is connected to the rotating shaft of the rotating motor.

[0072] Optionally, the pressing module 2 includes a driving unit 21 and a transmission unit, wherein the driving unit 21 is mounted on a movable part (such as a mounting plate 13) of the moving module 1. The transmission unit is in transmission connection with the isolation paper adsorption assembly 5. The isolation paper adsorption assembly 5 is located on the peripheral side of the battery cell adsorption assembly 4. The driving unit 21 pushes the isolation paper adsorption assembly 5 downward through the transmission unit, so that the adsorption end of the isolation paper adsorption assembly 5 extends downward from the battery cell adsorption assembly 4. The driving unit 21 can be, for example, a cylinder, and when the telescopic rod of the cylinder extends downward, the isolation paper adsorption assembly 5 is pushed downward through the transmission unit. When the telescopic rod of the cylinder retracts upward, the transmission unit is stopped from being pushed, so that the isolation paper adsorption assembly 5 rises and resets after losing pressure.

[0073] By arranging the isolation paper adsorption assembly 5 on the peripheral side of the battery cell adsorption assembly 4, the isolation paper adsorption assembly 5 can adsorb the isolation paper from the peripheral direction, thereby ensuring that the adsorbed isolation paper is in a horizontal state and preventing the isolation paper from bending when placed on the battery cell.

[0074] like Figures 2 to 3 As shown, optionally, the battery cell adsorption assembly 4 includes a first mounting plate 41 and a first suction cup 42 , wherein the first mounting plate 41 is fixedly connected to the lower end of the mounting bracket 3 , and the first suction cup 42 is arranged on the lower surface of the first mounting plate 41 .

[0075] The isolation paper adsorption assembly 5 includes a second mounting plate 51, a plurality of second suction cups 52 and a plurality of buffer connectors 53, wherein the second mounting plate 51 is liftably connected to the mounting bracket 3, the plurality of second suction cups 52 are circumferentially arranged on the second mounting plate 51 and located on the peripheral side of the first mounting plate 41, the lower end of the buffer connector 53 is connected to the first mounting plate 41, and the upper end of the buffer connector 53 is connected to the second mounting plate 51.

[0076] When the lower pressing mold assembly 2 pushes the second mounting plate 51 downward, the second mounting plate 51 is pressed down, the buffer connector 53 is compressed and contracted, and the adsorption end of the second suction cup 52 extends downward from the first suction cup 42, so that the second suction cup 52 can adsorb and carry the release paper.

[0077] When the pressing mold assembly 2 stops pushing the second mounting plate 51, the buffer connector 53 loses pressure and rebounds, thereby pushing the second mounting plate 51 to rise and reset, driving the adsorption ends of each second suction cup 52 to retract upward to above the first suction cup 42, so that the first suction cup 42 can adsorb and transport the battery cell.

[0078] Optionally, the first suction cup 42 is a Bernoulli suction cup, and the second suction cup 52 is a columnar suction cup extending in the vertical direction. The Bernoulli suction cup has the advantages of strong adsorption force and stable adsorption, which can ensure stable adsorption and handling of the battery cell. Using a columnar suction cup as the second suction cup 52 allows the second suction cup 52 to surround the circumferential side of the first suction cup 42, and the adsorption end of the second suction cup 52 can fully extend downward from the first suction cup 42.

[0079] Optionally, the buffer connector 53 includes a guide rod and a spring, wherein the lower end of the guide rod is fixedly connected to the first mounting plate 41, the upper end of the guide rod is movably connected to the second mounting plate 51, the spring is sleeved on the guide rod, the lower end of the spring abuts against the first mounting plate 41, and the upper end of the spring abuts against the second mounting plate 51. By configuring the buffer connector 53 in this way, the buffer connector 53 can implement a buffer connection between the second mounting plate 51 and the first mounting plate 41, and realize the lifting and lowering guidance of the second mounting plate 51, and finally ensure that each second suction cup 52 arranged along the circumferential direction can contact and adsorb the isolation paper.

[0080] Continue to refer Figure 2 and Figure 3 As shown, optionally, the cell moving mechanism 10 in the embodiment of the present application further includes a connecting bracket 7 and an air supply pipeline, wherein: the upper end of the connecting bracket 7 is rotatably connected to the movable part of the moving module 1 via a rotating connector 8, and the lower end of the connecting bracket 7 is fixedly connected to the mounting bracket 3. The air supply pipeline is arranged on the connecting bracket 7, the upper end of the air supply pipeline is connected to the air supply mechanism, and the lower end of the air supply pipeline is connected to the suction cup of the cell adsorption assembly 4, and the air supply mechanism supplies air to the suction cup of the cell adsorption assembly 4 via the air supply pipeline, so that the suction cup of the cell adsorption assembly 4 generates an adsorption force to implement adsorption of the cell.

[0081] Since the upper end of the connecting bracket 7 is rotatably connected to the movable part of the movable module 1 via the rotating connecting piece 8, when the rotating module 6 drives the battery cell adsorption assembly 4 and the isolation paper adsorption assembly 5 to rotate via the mounting bracket 3, the connecting bracket 7 rotates synchronously driven by the mounting bracket 3, so that the air supply pipeline can remain in its original state and prevent the air supply pipeline from being twisted or damaged.

[0082] The present application also provides a battery cell collecting device, such as Figures 4 to 5 As shown, the battery cell collecting device includes a battery cell moving mechanism 10 and a battery cell storage mechanism 20 provided in any of the above embodiments, wherein:

[0083] The cell storage mechanism 20 comprises a mounting bracket 201 , a release paper supply tray 202 and a cell storage tray 203 arranged on the mounting bracket 201 .

[0084] The cell moving mechanism 10 is used to stack the cells into the cell storage tray 203 via the cell adsorption assembly 4. After each cell is stacked into the cell storage tray 203 by the cell moving mechanism 10, the cell moving mechanism 10 is also used to suck a piece of release paper from the release paper supply tray 202 via the release paper adsorption assembly 5, and to stack the sucked release paper onto the cell.

[0085] The cell collecting device in the embodiment of the present application realizes automatic cell collection, and during the cell collection process, isolation paper is placed on the cell in an intermittent manner, so that a piece of isolation paper is placed between two adjacently stored cell sheets to prevent cross contamination between adjacent cell sheets.

[0086] like Figures 4 to 5 As shown, optionally, two battery cell storage trays 203 are provided, and the two battery cell storage trays 203 are used to classify and store two different types of battery cells.

[0087] The present application also provides a battery string connection device, which is used to connect back-contact battery cells in series into battery strings. In particular, the battery string connection device includes a battery cell collecting device, a battery cell loading and conveying device, a battery cell loading and handling device, a solder strip feeding device, a string connection conveying device and a string connection device provided in any of the above embodiments.

[0088] The battery cell collecting device is used to adjust the polarity of the battery cells conveyed by the battery cell loading and conveying device, and to remove unqualified battery cells from the battery cell loading and conveying device. The battery cell loading and conveying device is used to convey the battery cells to the battery cell loading and conveying device. The battery cell loading and conveying device and the solder strip feeding device are used to stack the battery cells and solder strips according to the stringing rules and put them into the series conveying device. The series conveying device conveys the stacked battery cells and solder strips to the series connection device, and the series connection device welds the battery cells and solder strips into strings.

[0089] The cell collecting device can provide the cell loading and conveying device with qualified cells that have completed polarity adjustment. The cell loading and conveying device and the solder tape feeding device can cooperate with each other to lay the cells and solder tapes on the stringing conveying device according to the stringing rules, so that the stringing device can string the cells together, thus avoiding the influx of unqualified cells.

[0090] Specifically, the cell loading and transporting device picks up the cells that have been screened by the cell collecting device and places the cells on the welding conveyor line. The solder tape feeding device pulls the solder tape, cuts it into solder tape segments of a predetermined length, and places the solder tape segments on the stringing conveyor device in a staggered manner according to the stringing rules of the cell strings. The cell loading and transporting device stacks the cells on the solder tape segments provided by the solder tape feeding device. The stringing conveyor device transports the stacked solder tape segments and cells to the stringing device, which heats the solder tape and cells and connects the solder tape and the cell strings into a cell string.

[0091] The present application is described in sufficient detail above with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, rather than by the above description in the embodiments.

Claims

1. A battery cell moving mechanism, characterized in that: The battery cell moving mechanism includes a moving module, a pressing module, a mounting bracket, a battery cell adsorption component and a separation paper adsorption component, wherein: The mounting bracket is drivingly connected to the movable part of the moving module; The pressing module and the battery cell adsorption assembly are both mounted on the mounting bracket, and the isolation paper adsorption assembly is mounted on the movable part of the pressing module; The battery cell adsorption assembly is used to adsorb the battery cell, and the pressing module drives the isolation paper adsorption assembly to extend the battery cell adsorption assembly downward to adsorb the isolation paper; The mobile module drives the battery cell adsorption assembly and the isolation paper adsorption assembly to move horizontally and rise and fall synchronously through the mounting bracket.

2. The battery cell moving mechanism according to claim 1, characterized in that: The battery sheet moving mechanism further comprises a rotating module, the rotating module is mounted on a movable part of the moving module, and the mounting bracket is mounted on the movable part of the rotating module; The rotating module drives the battery cell adsorption assembly and the isolation paper adsorption assembly to rotate synchronously on a horizontal plane through the mounting bracket.

3. The battery sheet moving mechanism according to claim 1, characterized in that: The pressing die set comprises a driving part and a transmission part, wherein the driving part is mounted on the movable part of the moving die set, and the transmission part is in transmission connection with the release paper adsorption assembly; The isolation paper adsorption component is located on the peripheral side of the battery cell adsorption component; The driving part pushes the isolation paper adsorption assembly downward through the transmission part, so that the adsorption end of the isolation paper adsorption assembly extends downward from the battery cell adsorption assembly.

4. The battery sheet moving mechanism according to claim 1, characterized in that: The battery cell adsorption assembly includes a first mounting plate and a first suction cup, wherein the first mounting plate is fixedly connected to the lower end of the mounting bracket, and the first suction cup is arranged on the lower surface of the first mounting plate; The release paper adsorption assembly comprises a second mounting plate, a plurality of second suction cups and a plurality of buffer connectors, wherein the second mounting plate is movably connected to the mounting bracket, the plurality of second suction cups are circumferentially arranged on the second mounting plate and located on the peripheral side of the first mounting plate, the lower end of the buffer connector is connected to the first mounting plate, and the upper end of the buffer connector is connected to the second mounting plate; When the pressing module pushes the second mounting plate downward, the buffer connecting piece is compressed and contracts, and the adsorption end of the second suction cup extends downward from the first suction cup; when the pressing module is separated from the second mounting plate, the buffer connecting piece loses pressure and rebounds, and the second mounting plate rises and resets to drive the adsorption end of each second suction cup to retract upward to above the first suction cup.

5. The battery sheet moving mechanism according to claim 4, characterized in that: The first suction cup is a Bernoulli suction cup, and the second suction cup is a columnar suction cup extending in a vertical direction.

6. The battery sheet moving mechanism according to claim 4, characterized in that: The buffer connection member includes a guide rod and a spring, wherein the lower end of the guide rod is fixedly connected to the first mounting plate, the upper end of the guide rod is movably connected to the second mounting plate, the spring is sleeved on the guide rod, the lower end of the spring abuts against the first mounting plate, and the upper end of the spring abuts against the second mounting plate.

7. The battery sheet moving mechanism according to claim 2, characterized in that: The battery sheet moving mechanism also includes a connecting bracket and an air supply pipeline, wherein: The upper end of the connecting bracket is rotatably connected to the movable component of the moving module via a rotating connecting piece, and the lower end of the connecting bracket is fixedly connected to the mounting bracket; The air supply pipeline is arranged on the connecting bracket, the upper end of the air supply pipeline is communicated with the air supply mechanism, and the lower end of the air supply pipeline is communicated with the suction cup of the battery cell adsorption assembly; When the rotating module drives the battery cell adsorption assembly and the isolation paper adsorption assembly to rotate, the connecting bracket rotates synchronously driven by the mounting bracket.

8. A battery cell collecting device, characterized in that: The battery cell collecting device comprises a battery cell moving mechanism and a battery cell storage mechanism as claimed in any one of claims 1 to 7, wherein: The battery cell storage mechanism comprises a mounting bracket, a separation paper supply tray and a battery cell storage tray arranged on the mounting bracket; The battery cell moving mechanism is used to stack the battery cells onto the battery cell storage tray via the battery cell adsorption assembly; After each battery cell is stacked on the battery cell storage tray, the battery cell moving mechanism is also used to absorb a piece of isolation paper from the isolation paper supply tray through the isolation paper adsorption component, and stack the absorbed isolation paper on the battery cell.

9. The battery sheet collecting device according to claim 8, characterized in that: The battery cell storage trays are provided with two, and the two battery cell storage trays are used for classifying and storing two different types of battery cells.

10. A battery string connection device, characterized in that: The battery string connection device is used to connect back-contact battery cells in series into battery strings, and the battery string connection device includes a battery cell collecting device, a battery cell feeding and conveying device, a battery cell feeding and handling device, a welding ribbon feeding device, a string connection conveying device and a string connection device as claimed in any one of claims 8 to 9, The battery cell collecting device is used to adjust the polarity of the battery cells conveyed by the battery cell loading and conveying device, and to remove unqualified battery cells from the battery cell loading and conveying device. The battery cell loading and conveying device is used to convey the battery cells to the battery cell loading and conveying device. The battery cell loading and conveying device and the solder strip feeding device are used to stack the battery cells and solder strips according to the stringing rule to the series connection conveying device. The series connection conveying device conveys the stacked battery cells and solder strips to the series connection device, and the series connection device welds the battery cells and solder strips into a string.

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