Battery piece auxiliary separator

Abstract

The invention relates to an auxiliary separator for a battery piece, and the separator comprises a battery piece adsorption unit which is disposed above a film pasting unit and is used for adsorbing the battery piece or releasing the adsorption of the battery piece; the film pasting unit is arranged above the battery piece storage box and used for fixing and pulling a film to move so that the film can be laid below the battery piece, and after it is determined that the battery piece falls on the film, fixation of the film can be relieved so that a combination of the film and the battery piece can fall into the battery piece storage box. The device can effectively improve the delivery rate of the battery pieces and reduce the production cost.

Description

Technical Field

[0001] The invention belongs to the technical field of solar cells, and in particular relates to a cell sheet auxiliary separator. Background Art

[0002] Back contact (BC) cells are a type of solar cell that combines multiple technical routes. The electrode is located on the back of the cell, and there is no metal grid blocking the front. The advantage of this design is that it ensures that the front of the cell is fully exposed to sunlight, while reducing the path of current transmission and reducing resistance, thereby effectively improving the performance of the cell. However, this structure also has obvious disadvantages. For example, when BC cells are stacked, the front of the cell contacts the back of the next cell. There are raised metal grids on the front, while the back surface is smooth. When the two cells are in contact, the metal grids can easily cause scratches on the back of the cell, or even cracks or fragments, resulting in a significant reduction in shipment rates and increased production costs. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the present invention provides a battery cell auxiliary separator. The technical problem to be solved by the present invention is achieved through the following technical solutions:

[0004] The present invention provides a battery cell auxiliary separator, comprising: a battery cell adsorption unit, arranged above a film sticking unit, for adsorbing battery cells or releasing the adsorption of the battery cells; the film sticking unit, arranged above a battery cell storage box, for fixing and pulling a film to move so that the film is laid under the battery cell, and after determining that the battery cell falls on the film, releasing the fixation of the film so that the combination of the film and the battery cell falls into the battery cell storage box.

[0005] In some embodiments, the film laminating unit includes: a film supply module, a film clamping module and a first supporting module; the first supporting module is arranged on the film clamping module, and the film supply module is arranged on one side of the film clamping module; the battery cell adsorption unit is arranged on the first supporting module; the film supply module is used to provide the film to the film clamping module; the film clamping module is used to clamp one side of the film to drag the film to move under the battery cell, and after reaching under the battery cell, clamp the other side of the film.

[0006] In some embodiments, the film supply module includes: a cutting submodule and a film storage submodule; the cutting submodule and the film storage submodule are arranged side by side on one side of the film clamping module; the cutting submodule is used to monitor the film length of the film when the film clamping module drags the film stored in the film storage submodule, and cut off the connection between the film and the film storage submodule after the film length of the film reaches a preset length.

[0007] In some embodiments, the first support module includes: a first bracket, a second bracket and a connecting bar; the first bracket and the second bracket are symmetrically arranged, and the two ends of the connecting bar are respectively connected to one end of the first bracket and one end of the second bracket; and a sliding sub-module is provided on the first bracket and the second bracket.

[0008] In some embodiments, the film clamping module includes: a plurality of conical pestles; the battery cell auxiliary separator also includes: a control module; one end of the plurality of conical pestles is movably clamped in the sliding submodule; the plurality of conical pestles and the sliding submodule are electrically connected to the control module respectively; the sliding submodule is used to respond to the first control instruction of the control module to drive the plurality of conical pestles to move relative to the first bracket and the second bracket; the plurality of conical pestles are used to respond to the second control instruction of the control module to slide up and down relative to the sliding submodule to clamp the film or release the clamping of the film.

[0009] In some embodiments, the battery cell adsorption unit includes: an adsorption module and a second support module; the adsorption module and the second support module are movably connected, and the second support module is arranged on one side of the film sticking unit; the adsorption module moves up and down relative to the second support module, and is used to adsorb the battery cell or release the adsorption of the battery cell.

[0010] In some embodiments, the second support module includes: a first support rod and a second support rod; the first support rod is arranged on one side of the film-sticking unit, one end of the second support rod is movably connected to the adsorption module, and the other end is connected to an end of the first support rod away from the film-sticking unit.

[0011] In some embodiments, the adsorption module includes: a suction cup and a fixing rod that are fixedly connected; the fixing rod is movably connected to the second supporting module.

[0012] In some embodiments, the sliding submodule is a rectangular conveyor belt or an elliptical conveyor belt.

[0013] In some embodiments, the adsorption module includes: a suction cup and a fixing rod that are fixedly connected; the fixing rod is movably connected to the second supporting module.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In view of the problem that the existing BC battery cell stacking method easily leads to a low battery cell shipment rate, the present invention proposes a battery cell auxiliary separator, which can use a battery cell adsorption unit to adsorb the battery cell so that the side that needs to be filmed faces the film pasting unit, and use the film pasting unit to attach a wear-resistant film to the battery cell to ensure that when the battery cells are stacked, adjacent battery cells will not scratch each other, avoiding scratches, cracks or fragments, greatly improving the battery cell shipment rate and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural block diagram of a battery cell auxiliary separator provided by an embodiment of the present invention;

[0017] Figure 2 is a structural framework diagram of a battery cell adsorption unit provided in an embodiment of the present invention;

[0018] Figure 3 is a structural framework diagram of a film laminating unit provided in an embodiment of the present invention;

[0019] Figure 4 is a schematic structural diagram of a battery cell auxiliary separator provided by an embodiment of the present invention;

[0020] Figure 5 is a schematic diagram of a top view of the structure of a battery cell auxiliary separator provided by an embodiment of the present invention;

[0021] Figure 6 It is an enlarged view of the local structure of the battery sheet auxiliary separator provided by an embodiment of the present invention;

[0022] Figure 7 It is an example diagram of a taxiing submodule provided in an embodiment of the present invention.

[0023] Reference numerals:

[0024] 1: fixing rod; 2: bracket; 3: conical pestle; 4: second supporting module; 5: suction cup; 6: battery cell; 7: film storage submodule; 8: connecting strip; 9: cutting submodule; 10: film; 21: first bracket; 22: second bracket; 31: first conical pestle; 32: second conical pestle; 41: first supporting rod; 42: second supporting rod; 221: conveyor belt. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to specific embodiments, but the embodiments of the present invention are not limited thereto.

[0026] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0028] Although the present invention is described herein in conjunction with various embodiments, in the process of implementing the claimed invention, those skilled in the art may understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0029] The battery sheet auxiliary separator proposed by the present invention will now be described in detail with reference to the accompanying drawings.

[0030] Figure 1 is a structural block diagram of a battery cell auxiliary separator provided by an embodiment of the present invention; Figure 2 is a structural framework diagram of a battery cell adsorption unit provided in an embodiment of the present invention; Figure 3 is a structural framework diagram of a film laminating unit provided in an embodiment of the present invention; Figure 4 is a schematic structural diagram of a battery cell auxiliary separator provided by an embodiment of the present invention; Figure 5 is a schematic diagram of a top view of the structure of a battery cell auxiliary separator provided by an embodiment of the present invention; Figure 6 It is an enlarged view of the local structure of the battery sheet auxiliary separator provided by an embodiment of the present invention; Figure 7 It is an example diagram of a taxiing submodule provided in an embodiment of the present invention.

[0031] Please refer to Figure 1 , 4 and 5, the battery cell auxiliary separator includes: a battery cell adsorption unit, arranged above the film sticking unit, for adsorbing the battery cell or releasing the adsorption of the battery cell; a film sticking unit, arranged above the battery cell storage box, for fixing and pulling the film 10 to move so that the film 10 is laid under the battery cell 6, and after determining that the battery cell 6 falls on the film 10, releasing the fixation of the film 10 so that the combination of the film 10 and the battery cell 6 falls into the battery cell storage box.

[0032] Here, the battery cell 6 is a BC battery cell and is stored in a battery cell storage unit. The battery cell storage unit may be a production conveyor belt of the battery cell. Exemplarily, the battery cell adsorption unit adsorbs the battery cell 6 from the production conveyor belt of the battery cell and releases the adsorption of the battery cell 6 above the film laminating unit.

[0033] Please refer to Figure 2 , 4 and 5, the battery cell adsorption unit includes: an adsorption module and a second support module 4; the adsorption module and the second support module 4 are movably connected, and the second support module 4 is arranged on one side of the film sticking unit; the adsorption module can move up and down relative to the second support module 4, and is used to adsorb the battery cell or release the adsorption of the battery cell.

[0034] Here, the second support module 4 includes: a first support rod 41 and a second support rod 42; the first support rod 41 is arranged at one side of the film sticking unit, one end of the second support rod 42 is movably connected to the adsorption module, and the other end is connected to the end of the first support rod 41 away from the film sticking unit. The first support rod 41 and the second support rod 42 are perpendicular to each other.

[0035] Here, the adsorption module includes: a fixedly connected suction cup 5 and a fixed rod 1; the fixed rod 1 is movably connected to the second support module 4. Specifically, the fixed rod 1 is movably connected to the first support rod 41, and the second support rod 42 is rotatably arranged on the connecting bar 8; illustratively, the second support rod 42 rotates clockwise to the production line of the battery cell 6, the first support rod 41 is provided with a protrusion, and the fixed rod 1 is provided with a slide rail. By clamping the protrusion in the slide rail, the electrically controlled protrusion slides down in the vertical slide rail, so that the fixed rod 1 drives the suction cup 5 to approach and adsorb the battery cell 6, and then the electrically controlled protrusion rises in the vertical slide rail, and with the counterclockwise rotation of the second support rod 42, the battery cell 6 is located above the film 10. Here, the suction cup 5 is an electric suction cup, and the battery cell 6 is a BC battery cell; the suction cup 5 contacts the side of the battery cell 6 covered with metal grid lines.

[0036] Please refer to Figure 3 , 4-6, the film pasting unit includes: a film supply module, a film clamping module and a first supporting module; the first supporting module is arranged on the film clamping module, and the film supply module is arranged on one side of the film clamping module; the battery cell adsorption unit is arranged on the first supporting module; the film supply module is used to provide the film 10 to the film clamping module; the film clamping module is used to clamp one side of the film 10 to drag the film 10 to move under the battery cell 6, and after reaching under the battery cell 6, clamp the other side of the film 10.

[0037] Here, the film supply module includes: a cutting submodule 9 and a film storage submodule 7; the cutting submodule 9 and the film storage submodule 7 are arranged side by side on one side of the film clamping module; the cutting submodule 9 is used to monitor the film length of the film when the film clamping module drags the film 10 stored in the film storage submodule 7, and cut off the connection between the film and the film storage submodule after the film length of the film reaches a preset length. In a possible implementation, the cutting submodule 9 is a laser cutter; and the film storage submodule 7 is cylindrical.

[0038] In a possible implementation, the second support module 4 is also connected to the cutting submodule 9. Specifically, the second support module 4 is respectively arranged at the midpoint of the connecting strip 8 in the first support module and the cutting submodule 9.

[0039] For example, the technician pulls the film out of the film storage submodule, fixes one end of the film to the film clamping module, and pulls the film 10 to the preset position through the film clamping module. During this period, the cutting submodule 9 is used for real-time monitoring. After the pulled film length is greater than the preset length, the other end of the film 10 is intelligently fixed to the film clamping module before the cutting submodule 9 cuts the film 10. It should be understood that the film length greater than the preset length can ensure that there is a margin to avoid incomplete bonding between the battery cell 6 and the film 10, or holes in the film 10 bonded to the battery cell 6.

[0040] Please continue to refer to Figure 3-5 7, the first support module includes: a first bracket 21, a second bracket 22 and a connecting strip 8; the first bracket 21 and the second bracket 22 are symmetrically arranged, and the two ends of the connecting strip 8 are respectively connected to one end of the first bracket 21 and one end of the second bracket 22; and the first bracket 21 and the second bracket 22 are both provided with a sliding submodule. Here, the first bracket 21 and the second bracket 2 form a bracket 2; the sliding submodule is a rectangular conveyor belt or an elliptical conveyor belt. For example, Figure 7 A conveyor belt 221 is arranged on the first bracket 21.

[0041] Here, the film clamping module includes: a plurality of conical pestles 3. For example, Figure 5The first conical pestle 31 and the second conical pestle 32 in the battery cell auxiliary separator also include: a control module (not shown in the figure); one end of a plurality of conical pestles 3 is movably clamped in the sliding submodule; a plurality of conical pestles 3 and the sliding submodule are electrically connected to the control module respectively; the sliding submodule is used to drive the plurality of conical pestles 3 to move relative to the first bracket 21 and the second bracket 22 in response to a first control instruction of the control module; and the plurality of conical pestles 3 are used to slide up and down relative to the sliding submodule in response to a second control instruction of the control module to clamp the film 10 or release the clamping of the film 10.

[0042] Here, see Figure 6 The conical pestle 3 is composed of two parts, the part stuck in the sliding submodule is a hollow cylinder, and the part used to poke into the film is a conical needle. The conical needle can be retracted and extended in the hollow cylinder in response to the second control instruction. In addition, the number and setting position of the conical pestles 3 arranged on the first bracket 21 and the second bracket 22 are the same, at least 2. Figure 5 As shown, when the number of the conical pestles 3 on one bracket is two, the first conical pestle 31 provided on the first bracket 21 is located at the starting end, that is, the position of the first bracket 21 away from the cutting submodule 9, and the second conical pestle 32 on the first bracket 21 is located at a position close to the cutting submodule 9. In addition, the first conical pestle 31 provided on the first bracket 21 and the second conical pestle 32 provided on the second bracket 22 extend or retract the conical needle synchronously.

[0043] In actual work, the adsorption module in the battery cell adsorption unit adsorbs the battery cell 6 from the conveyor belt of the production line to the top of the battery cell storage box, wherein the back of the battery cell 6 faces the film 10; the technician pulls out the film 10 from the film storage submodule 7, and fixes one end of it on the first conical pestle 31 just near the film storage submodule 7, and responds to the first control instruction, drives the film 10 to slide in the conveyor belt 221 until the length of the pulled film is greater than the preset length, and the cutting submodule 9 cuts off the connection between the film 10 and the film storage submodule 7; the other end of the film 10 is automatically poked and fixed by the second conical pestle 32 that slides over; at this time, the film 10 is located above the battery cell 6; the adsorption module releases the adsorption of the battery cell 6, and accompanied by a proper amount of air blowing, the battery cell 6 falls so that its back is in contact with the film 10, and under the influence of gravity, drives the film 10 to fall off from the first conical pestle 31 and the second conical pestle 32 and fall into the battery cell storage box; at the same time, the adsorption module continues to adsorb new battery cells 6 from the conveyor belt of the production line to repeat the above steps. It should be noted that when the film in the film storage submodule 7 is used for the first time, a technician is required to assist in extracting it. At other times, a new film can be extracted by moving the conical pestle.

[0044] In view of the problem that the existing BC battery cell stacking method easily leads to a low battery cell shipment rate, the present invention proposes a battery cell auxiliary separator, which can use a battery cell adsorption unit to adsorb the battery cell so that the side that needs to be filmed faces the film pasting unit, and use the film pasting unit to attach a wear-resistant film to the battery cell to ensure that when the battery cells are stacked, adjacent battery cells will not scratch each other, avoiding scratches, cracks or fragments, greatly improving the battery cell shipment rate and reducing production costs.

[0045] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A battery cell auxiliary separator, characterized in that: include: A battery cell adsorption unit is arranged above the film sticking unit and is used to adsorb the battery cell or release the adsorption of the battery cell; The film sticking unit is arranged above the battery cell storage box, and is used to fix and pull the film to move so that the film is laid under the battery cell, and after determining that the battery cell falls on the film, release the fixation of the film so that the combination of the film and the battery cell falls into the battery cell storage box.

2. The battery sheet auxiliary separator according to claim 1, characterized in that: The film sticking unit comprises: a film supply module, a film clamping module and a first supporting module; The first supporting module is arranged on the film clamping module, and the film supplying module is arranged on one side of the film clamping module; the battery cell adsorption unit is arranged on the first supporting module; The film supply module is used to provide the film to the film clamping module; The film clamping module is used to clamp one side of the film to drag the film to move under the battery cell, and clamp the other side of the film after reaching under the battery cell.

3. The battery sheet auxiliary separator according to claim 2, characterized in that: The film supply module includes: a cutting submodule and a film storage submodule; The cutting submodule and the film storage submodule are arranged side by side on one side of the film clamping module; The cutting submodule is used to monitor the film length of the film when the film clamping module drags the film stored in the film storage submodule, and cut off the connection between the film and the film storage submodule after the film length of the film reaches a preset length.

4. The battery sheet auxiliary separator according to claim 2, characterized in that: The first support module includes: a first bracket, a second bracket and a connecting bar; The first bracket and the second bracket are symmetrically arranged, and two ends of the connecting strip are respectively connected to one end of the first bracket and one end of the second bracket; and the first bracket and the second bracket are both provided with a sliding submodule.

5. The battery sheet auxiliary separator according to claim 4, characterized in that: The film clamping module includes: a plurality of conical pestles; the battery sheet auxiliary separator also includes: a control module; One end of the plurality of conical pestles is movably clamped in the sliding submodule; the plurality of conical pestles and the sliding submodule are electrically connected to the control module respectively; The sliding submodule is used for driving the plurality of conical pestles to move relative to the first bracket and the second bracket in response to the first control instruction of the control module; The plurality of conical pestles are used to slide up and down relative to the sliding submodule in response to the second control instruction of the control module to clamp the film or release the clamping of the film.

6. The battery sheet auxiliary separator according to claim 1, characterized in that: The battery cell adsorption unit comprises: an adsorption module and a second support module; the adsorption module and the second support module are movably connected, and the second support module is arranged on one side of the film sticking unit; The adsorption module moves up and down relative to the second supporting module, and is used for adsorbing the battery cell or releasing the adsorption of the battery cell.

7. The battery sheet auxiliary separator according to claim 6, characterized in that: The second support module includes: a first support rod and a second support rod; the first support rod is arranged on one side of the film sticking unit, one end of the second support rod is movably connected to the adsorption module, and the other end is connected to the end of the first support rod away from the film sticking unit.

8. The battery sheet auxiliary separator according to claim 6, characterized in that: The adsorption module comprises: a suction cup and a fixing rod which are fixedly connected; the fixing rod is movably connected to the second supporting module.

9. The battery sheet auxiliary separator according to claim 4, characterized in that: The sliding submodule is a rectangular conveyor belt or an elliptical conveyor belt.

10. The battery sheet auxiliary separator according to claim 6, characterized in that: The adsorption module comprises: a suction cup and a fixing rod which are fixedly connected; the fixing rod is movably connected to the second supporting module.

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