A battery piece gluing device and a battery piece gluing apparatus

Abstract

The application provides a battery piece gluing device and a battery piece gluing equipment. The gluing device comprises a first conveying mechanism, a first gluing mechanism, a turnover mechanism, a first carrying mechanism, a second conveying mechanism and a second gluing mechanism. The first conveying mechanism is used for receiving battery pieces to be glued and conveying the battery pieces to the first gluing mechanism and the turnover mechanism in sequence. The first gluing mechanism is used for gluing a first surface of the battery pieces. The turnover mechanism is used for picking up the battery pieces with the first surface glued from the first conveying mechanism and turning over the battery pieces. The first carrying mechanism is used for picking up the turned-over battery pieces from the turnover mechanism and carrying the battery pieces to the second conveying mechanism. The second conveying mechanism is used for conveying the battery pieces to the second gluing mechanism. The second gluing mechanism is used for gluing a second surface of the battery pieces. The application can continuously and automatically glue the two surfaces of the battery pieces, thereby greatly improving the gluing efficiency and the gluing effect.

Description

Technical Field

[0001] This invention relates to the field of battery module manufacturing, specifically to a battery cell coating device and battery cell coating equipment. Background Technology

[0002] When welding battery strings, the welding machine usually uses a light box welding method, which involves high welding temperature. When the battery cells are thin, high-temperature welding can easily cause the battery cells to crack, especially for ultra-thin battery cells, where the risk of cracking is greater.

[0003] To address the cracking issue that easily occurs during high-temperature welding, a low-temperature welding process has emerged in the industry. This process involves first applying adhesive to designated locations on the solar cell, then stringing the solder ribbon to the cell, followed by low-temperature heating. This allows the cell and solder ribbon to achieve precise contact through adhesive bonding, forming a cell string. Finally, during module lamination, the solder ribbon and cell achieve ohmic contact. This low-temperature welding process avoids high-temperature welding and effectively solves the cracking problem caused by high-temperature welding.

[0004] Currently, adhesive is generally applied to solar cells manually. However, the number of adhesive application points on solar cells is very large and dense, making manual adhesive application inefficient and difficult to guarantee the adhesive application effect. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a battery cell coating device, which employs the following technical solution:

[0006] A battery cell coating apparatus includes a first transfer mechanism, a first coating mechanism, a flipping mechanism, a first conveying mechanism, a second transfer mechanism, and a second coating mechanism, wherein:

[0007] The first transfer mechanism is used to receive the battery cells to be coated and to transfer the battery cells to the first coating mechanism and the flipping mechanism in sequence.

[0008] The first adhesive application mechanism is used to apply adhesive to the first surface of the battery cell;

[0009] The flipping mechanism is used to pick up the first battery cell that has undergone the first surface coating from the transfer mechanism and flip the battery cell.

[0010] The first conveying mechanism is used to pick up the flipped battery cell from the flipping mechanism and transport the battery cell to the second transfer mechanism;

[0011] The second transfer mechanism is used to transfer the battery cells to the second coating mechanism;

[0012] The second adhesive application mechanism is used to apply adhesive to the second surface of the battery cell.

[0013] Through the cooperation of the first transfer mechanism, the first adhesive application mechanism, the flipping mechanism, the first handling mechanism, the second transfer mechanism, and the second adhesive application mechanism, the battery cell adhesive application device of the present invention realizes continuous and automatic adhesive application to both surfaces of the battery cell, thereby greatly improving the adhesive application efficiency and the adhesive application effect.

[0014] In some embodiments, the first transfer mechanism includes a first carrier plate and a first translation mechanism, wherein: the first carrier plate is used to receive and carry the battery cell to be coated; the first translation mechanism is used to drive the first carrier plate to translate, so as to sequentially transfer the battery cell carried on the first carrier plate to the first coating mechanism and the flipping mechanism.

[0015] A simple first transfer mechanism is provided, which sequentially transfers the battery cells to be coated to the first coating mechanism and the flipping mechanism through the cooperation of the first translation mechanism and the first carrier plate.

[0016] In some embodiments, the flipping mechanism includes a first lifting mechanism, a flipping drive mechanism, and an adsorption component, wherein: the flipping drive mechanism is connected to the drive end of the first lifting mechanism, and the adsorption component is connected to the drive end of the flipping drive mechanism; the first lifting mechanism is used to drive the adsorption component to lift and lower, the adsorption component is used to adsorb the battery cells, and the flipping drive mechanism is used to drive the adsorption component to flip so as to cause the battery cells adsorbed by the adsorption component to flip.

[0017] A simple flipping mechanism is provided, which uses a first lifting mechanism and a flipping drive mechanism to drive the adsorption component to lift and flip, thereby achieving the adsorption and flipping of the battery cell.

[0018] In some embodiments, the first transfer mechanism further includes a first carrier plate lifting mechanism, which is used to drive the first carrier plate to lift; the flipping mechanism includes a flipping drive mechanism and an adsorption component, the flipping drive mechanism is fixedly disposed, and the adsorption component is connected to the drive end of the flipping drive mechanism; the adsorption component is used to adsorb the battery cells, and the flipping drive mechanism is used to drive the adsorption component to flip so as to cause the battery cells adsorbed by the adsorption component to flip.

[0019] By incorporating a first carrier plate lifting mechanism, the first transfer mechanism can also drive the lifting and lowering of the first carrier plate. Thus, when the first transfer mechanism moves the battery cell below the flipping mechanism, it can push the battery cell upwards, ensuring that the adsorption component of the flipping mechanism can adsorb the battery cell. Therefore, the flipping mechanism does not require an additional lifting mechanism to drive the adsorption component to rise and fall.

[0020] In some embodiments, the adsorption assembly includes a first adsorption plate, which can adsorb at least one battery cell; the adsorption surface of the first adsorption plate is provided with a plurality of first clearance grooves and a plurality of adsorption elements, wherein: the adsorption elements are disposed between adjacent first clearance grooves; the first adsorption plate adsorbs the battery cell through the adsorption elements, and the first clearance grooves are used to avoid the straight line where the adhesive application point is located on the first surface of the battery cell.

[0021] By setting the adsorption surface of the first adsorption plate, the adsorption effect of the first adsorption plate on the battery cell is ensured, and the adhesive application points on the first surface of the battery cell are avoided.

[0022] In some embodiments, the adsorption assembly further includes a second adsorption plate, which has the same structure as the first adsorption plate. The first and second adsorption plates are arranged parallel to each other. The first and second adsorption plates are rotated synchronously under the drive of the rotation drive mechanism. When the first adsorption plate rotates to the position where the adsorption surface faces down, the second adsorption plate rotates to the position where the adsorption surface faces up. When the first adsorption plate rotates to the position where the adsorption surface faces up, the second adsorption plate rotates to the position where the adsorption surface faces down.

[0023] Two adsorption plates are provided, which can alternately adsorb and flip the battery cells, thereby improving the flipping efficiency of the flipping mechanism.

[0024] In some embodiments, the first conveying mechanism includes a second translation mechanism, a second lifting mechanism, a first rotary drive mechanism, and a first gripper, wherein: the second lifting mechanism is connected to the drive end of the second translation mechanism, the first rotary drive mechanism is connected to the drive end of the second lifting mechanism, and the first gripper is connected to the drive end of the first rotary drive mechanism; the first gripper is used to grip the flipped battery cell from the flipping mechanism, the second translation mechanism is used to drive the first gripper to translate in front of the flipping mechanism and the second transfer mechanism, the second lifting mechanism is used to drive the first gripper to lift and lower, and the first rotary drive mechanism is used to drive the first gripper to rotate in a plane.

[0025] By configuring the first transport mechanism to include a second translation mechanism, a second lifting mechanism, a first rotation drive mechanism, and a first gripper, the first transport mechanism not only transports the flipped battery cells from the flipping mechanism to the second transfer mechanism, but also adjusts the angle of the battery cells.

[0026] In some embodiments, the first handling mechanism includes a second translation mechanism, a second lifting mechanism, and a first gripper, wherein: the second lifting mechanism is connected to the drive end of the second translation mechanism, and the first gripper is connected to the drive end of the second lifting mechanism; the first gripper is used to grip the flipped battery cell from the flipping mechanism, the second translation mechanism is used to drive the first gripper to translate in front of the flipping mechanism and the second transfer mechanism, and the second lifting mechanism is used to drive the first gripper to lift.

[0027] A simpler first transport mechanism is provided, which can transport the flipped battery cells from the flipping mechanism to the second transport mechanism when no angle adjustment is required after the cells have been flipped.

[0028] In some embodiments, the second transfer mechanism includes a second carrier plate and a third translation mechanism, wherein: the second carrier plate is used to receive and carry the battery cell that has completed the first surface coating; the third translation mechanism is used to drive the second carrier plate to translate so as to transfer the battery cell carried on the second carrier plate to the second coating mechanism.

[0029] A simple second transfer mechanism is provided, which transfers the solar cells to the second coating mechanism through the cooperation of a third translation mechanism and a second carrier plate.

[0030] In some embodiments, a second clearance groove is provided on the bearing surface of the second carrier plate, the second clearance groove being used to avoid the straight line where the adhesive application point is located on the first surface of the battery cell; or, a second clearance hole is provided on the bearing surface of the second carrier plate, the second clearance hole being used to avoid the adhesive application point on the first surface of the battery cell.

[0031] By providing a second clearance groove or a second clearance hole on the bearing surface of the second bearing plate, the second bearing plate achieves clearance of the adhesive application points on the first surface of the battery cell.

[0032] In some embodiments, the cell coating apparatus further includes a cell feeding mechanism for supplying cells to be coated to a first transfer mechanism. The cell feeding mechanism includes a cassette conveying mechanism, a gripping mechanism, a cell conveying mechanism, a cell straightening mechanism, and a second transport mechanism. Specifically: the cassette conveying mechanism conveys a cassette containing cells to be coated to the gripping mechanism; the gripping mechanism picks up cells from the cassette and places them onto the cell conveying mechanism; the cassette conveying mechanism also outputs an empty cassette; the cell conveying mechanism conveys cells to the cell straightening mechanism; the cell straightening mechanism straightens the cells; and the second transport mechanism transports the straightened cells to the first transfer mechanism.

[0033] By setting up a cell feeding mechanism, the automatic cell picking, conveying and sorting of cells is realized, and the sorted cells are finally transported to the first transfer mechanism.

[0034] In some embodiments, the cassette conveying mechanism includes an upper conveying section, a cassette lifting section, and a lower conveying section, wherein: the lower conveying section is located below the upper conveying section; the upper conveying section is used to convey cassettes containing battery cells to be coated to the gripping mechanism, and to output empty cassettes; the cassette lifting section is configured to be able to move up and down in the vertical direction, and when the cassette lifting section rises to a high position, it receives the empty cassettes output by the upper conveying section; when the cassette lifting section falls to a low position, it outputs the empty cassettes to the lower conveying section, and the lower conveying section is used to output the empty cassettes.

[0035] Through the coordination of the upper conveyor, the material box lifting unit, and the lower conveyor, the material box conveying mechanism realizes automatic feeding of full material boxes and automatic unloading of empty material boxes.

[0036] In some embodiments, the gripping mechanism includes a third lifting mechanism, a second rotary drive mechanism, a rotary support, a first suction cup group, and a second suction cup group, wherein: the second rotary drive mechanism is connected to the drive end of the third lifting mechanism, the rotary support is connected to the drive end of the second rotary drive mechanism, and the first suction cup group and the second suction cup group are connected side by side to the rotary support; the third lifting mechanism is used to drive the rotary support to lift and lower, and the second rotary drive mechanism is used to drive the rotary support to rotate in a plane, thereby causing the first suction cup group and the second suction cup group to rotate and switch between the material box conveying mechanism and the battery cell conveying mechanism; when the first suction cup group rotates to the material box conveying mechanism, the second suction cup group rotates to the battery cell conveying mechanism; when the first suction cup group rotates to the battery cell conveying mechanism, the second suction cup group rotates to the material box conveying mechanism.

[0037] With the setup of the third lifting mechanism, the second rotary drive mechanism, the first suction cup group, and the second suction cup group, the first suction cup group and the second suction cup group can simultaneously lift, rotate, and pick up and put down the battery cells, enabling quick grabbing and release of the battery cells and improving the cell retrieval efficiency.

[0038] In some embodiments, the cell conveying mechanism includes a mounting bracket, a driver, a drive roller, a driven roller, a first conveyor belt, and a second conveyor belt, wherein: the drive roller is mounted on a first end of the mounting bracket, the driven roller is mounted on a second end of the mounting bracket, and the drive end of the driver is connected to the drive roller; the first conveyor belt and the second conveyor belt are wound side by side around the drive roller and the driven roller, and the first conveyor belt and the second conveyor belt cooperate to convey a first cell with a larger size, or the first conveyor belt and the second conveyor belt synchronously convey two second cells with a smaller size placed side by side.

[0039] By configuring the cell conveying mechanism, it is possible to convey both the larger first cell and the two smaller second cells placed side by side.

[0040] In some embodiments, the cell straightening mechanism includes a base plate, a first straightening part, a second straightening part, and a third straightening part, wherein: the first straightening part and the second straightening part are arranged in pairs on the base plate, the first straightening part is located on the side of the first conveyor belt, and the second straightening part is located on the side of the second conveyor belt; the third straightening part is removably mounted on the base plate; after the third straightening part is removed from the base plate, the first straightening part and the second straightening part straighten the first cell that is being transported by the first conveyor belt and the second conveyor belt; after the third straightening part is mounted on the base plate, the third straightening part is located between the first conveyor belt and the second conveyor belt; the third straightening part and the first straightening part straighten the second cell that is being transported by the first conveyor belt, and the third straightening part and the second straightening part straighten the second cell that is being transported by the second conveyor belt.

[0041] By configuring the cell straightening mechanism, it can straighten the first cell with a larger size conveyed by the cell conveying mechanism, and also simultaneously straighten the two second cells with a smaller size placed side by side conveyed by the cell conveying mechanism.

[0042] In some embodiments, the cell conveying mechanism includes a conveyor belt, wherein cells are sequentially spaced along the conveying direction of the conveyor belt, and the cell straightening mechanism includes a base plate, a fourth straightening part, and a fifth straightening part, wherein: the fourth straightening part and the fifth straightening part are arranged in pairs on the base plate, the fourth straightening part is located on a first side of the conveyor belt, and the fifth straightening part is located on a second side of the conveyor belt; the fourth straightening part and the fifth straightening part are configured to be able to move closer to or further away from each other, and when the fourth straightening part and the fifth straightening part move closer to each other, they simultaneously straighten two cells on the conveyor belt so that the sides of the cells are parallel to the conveying direction of the conveyor belt.

[0043] By configuring the cell conveying mechanism, the cells can be conveyed sequentially and at intervals. The cell straightening mechanism can straighten two consecutive cells conveyed by the conveyor belt at the same time. In this way, the second handling mechanism in the subsequent process can pick up two straightened cells from the conveyor belt at the same time.

[0044] In some embodiments, the fourth aligning section includes a first aligning wheel group and a second aligning wheel group arranged along the conveying direction of the conveyor belt; the fifth aligning section includes a third aligning wheel group and a fourth aligning wheel group arranged along the conveying direction of the conveyor belt; when the fourth aligning section and the fifth aligning section approach each other, the first aligning wheel group and the third aligning wheel group align one battery cell on the conveyor belt, and the second aligning wheel group and the fourth aligning wheel group align another battery cell on the conveyor belt; the first aligning wheel group, the second aligning wheel group, the third aligning wheel group and the fourth aligning wheel group each include at least two aligning wheels arranged side by side along the conveying direction of the conveyor belt, and the installation position of each aligning wheel can be adjusted independently.

[0045] By setting two sets of straightening wheels on the fourth and fifth straightening sections respectively, the two solar cells can be straightened simultaneously. By adjusting the installation position of each straightening wheel, it can be ensured that each straightening wheel can contact the corresponding edge of the solar cell being straightened, thereby ensuring the straightening effect.

[0046] In some embodiments, the second conveying mechanism includes a fourth translation mechanism, a fourth lifting mechanism, and a second gripper, wherein: the fourth lifting mechanism is connected to the drive end of the fourth translation mechanism, and the second gripper is connected to the drive end of the fourth lifting mechanism; the second gripper is provided with a first picking-up part and a second picking-up part, the first picking-up part and the second picking-up part are used to pick up the shaped battery cells from the battery cell conveying mechanism, the fourth lifting mechanism is used to drive the second gripper to lift, and the fourth translation mechanism is used to drive the second gripper to translate.

[0047] Driven by the coordinated operation of the fourth translation mechanism and the fourth lifting mechanism, the second gripper transports the battery cells from the battery cell conveying mechanism to the first transfer mechanism. In particular, by configuring the second gripper to include a first picking part and a second picking part, the second gripper can pick up and transport a single larger first battery cell, as well as simultaneously pick up and transport two smaller second battery cells.

[0048] In some embodiments, the second transport mechanism includes a fifth translation mechanism, a fifth lifting mechanism, a sixth lifting mechanism, a third gripper, and a fourth gripper, wherein: the fifth lifting mechanism and the sixth lifting mechanism are jointly connected to the drive end of the fifth translation mechanism, the third gripper is connected to the drive end of the fifth lifting mechanism, and the fourth gripper is connected to the drive end of the sixth lifting mechanism; the third gripper is used to pick up one of the shaped battery cells from the battery cell conveying mechanism, the fourth gripper is used to pick up the other shaped battery cell from the battery cell conveying mechanism, the fifth lifting mechanism is used to drive the third gripper to lift and lower, the sixth lifting mechanism is used to drive the fourth gripper to lift and lower, and the fifth translation mechanism is used to drive the third gripper and the fourth gripper to translate to transport the two battery cells to the first transfer mechanism.

[0049] The spacing between two consecutive solar cells on the solar cell conveying mechanism may be too large or too small, failing to meet the printing requirements. This embodiment provides a second conveying mechanism with an alternative structure, capable of picking up two consecutively transported solar cells from the solar cell conveying mechanism, ensuring that the spacing between the picked-up solar cells meets the printing requirements. For example, driven by a fifth lifting mechanism, a third gripper first descends and picks up one solar cell, then rises back to its original position. A fifth translation mechanism then drives the third and fourth grippers to translate synchronously, parallel to the solar cell conveying direction. Then, driven by a sixth lifting mechanism, the fourth gripper descends and picks up the other solar cell, thus ensuring that the spacing between the two picked-up solar cells meets the printing requirements.

[0050] In some embodiments, the first and second adhesive application mechanisms are screen printing adhesive mechanisms, and the mesh arrangement of the screen printing stencil in the screen printing adhesive mechanism is consistent with the preset adhesive dot arrangement on the battery cell to be printed.

[0051] By employing a screen printing adhesive mechanism, adhesive is applied to both surfaces of the battery cells using screen printing, significantly improving adhesive application efficiency.

[0052] The present invention also provides a cell coating device, which includes any of the above-mentioned cell coating devices, wherein two cell coating devices are arranged in parallel.

[0053] Two cell coating devices simultaneously perform the coating operation on the cells, which greatly improves the coating efficiency of the cell coating equipment. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the battery cell coating device in the first embodiment of the present invention from a first perspective.

[0055] Figure 2 This is a schematic diagram of the battery cell coating device in the first embodiment of the present invention from a second perspective.

[0056] Figure 3 This is a schematic diagram of the battery cell coating device in the first embodiment of the present invention from a third perspective.

[0057] Figure 4 This is a schematic diagram of the structure of the first transfer mechanism, the first transport mechanism, and the second transfer mechanism in the first embodiment of the present invention from one perspective;

[0058] Figure 5 This is a schematic diagram of the assembly structure of the first transfer mechanism, the first transport mechanism, and the second transfer mechanism in the first embodiment of the present invention from two different perspectives.

[0059] Figure 6 This is a schematic diagram of the flipping mechanism in the first embodiment of the present invention;

[0060] Figure 7 This is a schematic diagram of the adsorption component in the first embodiment of the present invention from a first perspective;

[0061] Figure 8 This is a schematic diagram of the adsorption component in the first embodiment of the present invention from a second perspective;

[0062] Figure 9 This is a schematic diagram of the adsorption surface of the second adsorption plate in the first embodiment of the present invention;

[0063] Figure 10This is a schematic diagram of the material box conveying mechanism in the first embodiment of the present invention;

[0064] Figure 11 This is a schematic diagram of the gripping mechanism in the first embodiment of the present invention;

[0065] Figure 12 This is a schematic diagram of the battery cell conveying mechanism in the first embodiment of the present invention;

[0066] Figure 13 This is a schematic diagram of the structure of the cell straightening mechanism in the first embodiment of the present invention;

[0067] Figure 14 This is a schematic diagram of the assembly structure of the battery cell conveying mechanism, the second handling mechanism, and the first transfer mechanism in the first embodiment of the present invention;

[0068] Figure 15 This is a schematic diagram of the battery cell coating device in the second embodiment of the present invention from one perspective;

[0069] Figure 16 This is a schematic diagram of the structure of the first transfer mechanism, the flipping mechanism, and the first transport mechanism in the second embodiment of the present invention;

[0070] Figure 17 This is a schematic diagram of the flipping mechanism in the second embodiment of the present invention;

[0071] Figure 18 This is a schematic diagram of the structure of the battery cell conveying mechanism, the battery cell straightening mechanism and the second transport mechanism in the second embodiment of the present invention;

[0072] Figure 19 This is a schematic diagram of the structure of the battery cell straightening mechanism in the second embodiment of the present invention;

[0073] Figure 20 This is a schematic diagram of the assembly structure of the second transfer mechanism, the unloading mechanism, and the battery cell output mechanism in the second embodiment of the present invention;

[0074] Figures 1 to 20 The following reference numerals are included:

[0075] First transfer mechanism 10: First bearing plate 11, first translation mechanism 12, first bearing plate lifting mechanism 13;

[0076] First adhesive application unit 20;

[0077] Flipping mechanism 30: First lifting mechanism 31, flipping drive mechanism 32, adsorption assembly 33, first adsorption plate 331, second adsorption plate 332, first clearance groove 3311, adsorption component 3312, first support base 34, self-aligning bearing 35, second support base 36, mounting bracket 37, rotating shaft 38, rotating drive mechanism 39; First conveying mechanism 40: Second translation mechanism 41, second lifting mechanism 42, first rotating drive mechanism 43, first gripper 44, first positioning camera 45;

[0078] Second transfer mechanism 50: Second bearing plate 51, Third translation mechanism 52;

[0079] Second adhesive application unit 60;

[0080] Material box conveying mechanism 70: upper conveying part 71, material box lifting part 72, lower conveying part 73;

[0081] Grasping mechanism 80: third lifting mechanism 81, second rotary drive mechanism 82, rotary support 83, first suction cup group 84, second suction cup group 85;

[0082] Battery cell conveying mechanism 90: mounting bracket 91, driver 92, drive roller 93, driven roller 94, first conveyor belt 95, second conveyor belt 96, conveyor belt 97;

[0083] The cell straightening mechanism 100 includes: a base plate 101, a first straightening section 102, a second straightening section 103, a third straightening section 104, a fourth straightening section 105, a fifth straightening section 106, a first straightening wheel group 1051, a second straightening wheel group 1052, a third straightening wheel group 1061, and a fourth straightening wheel group 1062.

[0084] Second transport mechanism 110: Fourth translation mechanism 111, Fourth lifting mechanism 112, Second gripper 113, Fifth translation mechanism 114, Fifth lifting mechanism 115, Sixth lifting mechanism 116, Third gripper 117, Fourth gripper 118;

[0085] Feeding mechanism 120;

[0086] Second positioning camera 130;

[0087] Battery cell output mechanism 140: translation drive mechanism 141, receiving track 142. Detailed Implementation

[0088] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0089] To address the problems of low efficiency and difficulty in guaranteeing the adhesive application effect of manual methods for applying adhesive to solar cells, this invention provides a solar cell adhesive application device that can achieve continuous and automatic adhesive application to both surfaces of the solar cell, thereby significantly improving the adhesive application efficiency and ensuring the adhesive application effect.

[0090] The following two embodiments will be used to describe the structure and working process of the battery cell coating device provided by the present invention.

[0091] First embodiment:

[0092] like Figures 1 to 3 As shown, the battery cell coating apparatus provided in this embodiment includes a first transfer mechanism 10, a first coating mechanism 20, a flipping mechanism 30, a first transport mechanism 40, a second transfer mechanism 50, and a second coating mechanism 60. The first transfer mechanism 10 receives the battery cells to be coated and sequentially transfers them to the first coating mechanism 20 and the flipping mechanism 30. The first coating mechanism 20 applies coating to the first surface of the battery cells. The flipping mechanism 30 picks up the battery cells with the first surface coated from the first transfer mechanism 10 and flips them. The first transport mechanism 40 picks up the flipped battery cells from the flipping mechanism 30 and transports them to the second transfer mechanism 50. The second transfer mechanism 50 transfers the battery cells to the second coating mechanism 60. The second coating mechanism 60 applies coating to the second surface of the battery cells.

[0093] The working process of the battery cell coating device provided in this embodiment is as follows:

[0094] The first transfer mechanism 10 receives the battery cells to be coated by the battery cell feeding device or by manual handling, and transports the battery cells toward the first coating mechanism 20 and the flipping mechanism 30.

[0095] When the solar cell is conveyed to the first adhesive application station of the first adhesive application mechanism 20, the first adhesive application mechanism 20 completes the adhesive application to the first surface of the solar cell that is currently facing upwards. Generally, the adhesive application points are located between two adjacent sub-busbars of the solar cell, and the adhesive application points are arranged in multiple rows at intervals, with each row of adhesive application points corresponding to a solder strip.

[0096] When the battery cell with the first surface adhesive applied is transported to the flipping station of the flipping mechanism 30, the flipping mechanism 30 picks up the battery cell from the first transfer mechanism 10 and flips the battery cell 180° so that the first surface of the battery cell with adhesive applied is facing down and the second surface without adhesive applied is facing up.

[0097] Next, the first transport mechanism 40 picks up the flipped battery cell from the flipping mechanism 30 and transports the battery cell to the second transfer mechanism 50.

[0098] The second transfer mechanism 50 conveys the battery cells toward the second coating mechanism 60.

[0099] When the solar cell reaches the second adhesive application station of the second adhesive application mechanism 60, the second adhesive application mechanism 60 completes the adhesive application to the second surface of the solar cell that is currently facing upward.

[0100] As can be seen, through the cooperation of the first transfer mechanism 10, the first adhesive application mechanism 20, the flipping mechanism 30, the first transport mechanism 40, the second transfer mechanism 50 and the second adhesive application mechanism 60, the battery cell adhesive application device of this embodiment of the invention realizes continuous and automatic adhesive application to the two surfaces of the battery cell, thereby greatly improving the adhesive application efficiency and ensuring the adhesive application effect.

[0101] like Figure 4 and Figure 5 As shown, optionally, the first transfer mechanism 10 includes a first support plate 11 and a first translation mechanism 12, wherein: the first support plate 11 is used to receive and support the battery cells to be coated, that is, the battery cells to be coated are loaded onto the first support plate 11. The first translation mechanism 12 is used to drive the first support plate 11 to translate, thereby transferring the battery cells supported on the first support plate 11 sequentially to the first coating mechanism 20 and the flipping mechanism 30.

[0102] like Figure 6 As shown, optionally, the flipping mechanism 30 includes a first lifting mechanism 31, a flipping drive mechanism 32, and an adsorption component 33, wherein: the flipping drive mechanism 32 is connected to the drive end of the first lifting mechanism 31, and the adsorption component 33 is connected to the drive end of the flipping drive mechanism 32. The first lifting mechanism 31 is used to drive the adsorption component 33 to lift and lower, the adsorption component 33 is used to adsorb the battery cells, and the flipping drive mechanism 32 is used to drive the adsorption component 33 to flip so as to flip the battery cells adsorbed by the adsorption component 33.

[0103] The working process of the flipping mechanism 30 is as follows:

[0104] In the initial state, the adsorption component 33 is at a high position far away from the first transfer mechanism 10.

[0105] When the battery cell that has completed the first surface coating is transported to the flipping station of the flipping mechanism 30, the first lifting mechanism 31 drives the adsorption component 33 to a low position, and the adsorption component 33 then adsorbs the battery cell that has completed the first surface coating.

[0106] The first lifting mechanism 31 drives the adsorption component 33 back to the high position, and the flipping drive mechanism 32 drives the adsorption component 33 to flip 180°, so that the first surface of the battery cell that has been coated faces down and the second surface that has not been coated faces up.

[0107] like Figure 7 and Figure 8As shown, optionally, the adsorption assembly 33 includes a first adsorption plate 331, which can adsorb at least one battery cell. When the adsorption surface of the first adsorption plate 331 is flipped to face downward, it can adsorb the first surface of the battery cell that has undergone first surface coating on the first transfer mechanism 10.

[0108] Optional, such as Figure 7 As shown, the adsorption surface of the first adsorption plate 33 is provided with a plurality of first clearance grooves 3311 and a plurality of adsorption elements 3312, wherein: the adsorption elements 3312 are disposed between adjacent first clearance grooves 3311. The first adsorption plate 33 adsorbs the battery cell through the adsorption elements 3312, and the first clearance grooves 3311 are used to avoid the straight line where the adhesive application point is located on the first surface of the battery cell.

[0109] It can be seen that by setting the adsorption surface of the first adsorption plate 33, the adsorption effect of the first adsorption plate 33 on the battery cell is ensured, and the adhesive application point on the first surface of the battery cell is avoided by the first adsorption plate 33.

[0110] Optionally, the adsorption assembly 33 also includes a vacuum suction mechanism, and the adsorption element 3312 is a vacuum suction cup. The vacuum suction mechanism is connected to the vacuum suction cup. When the vacuum suction mechanism evacuates the vacuum suction cup, a negative pressure is generated inside the vacuum suction cup, allowing the vacuum suction cup to adsorb the battery cells. When the vacuum suction mechanism stops evacuating the vacuum suction cup, the negative pressure inside the vacuum suction cup disappears, and the vacuum suction cup can release the battery cells adsorbed on it.

[0111] like Figures 7 to 9 As shown, optionally, the adsorption assembly 33 also includes a second adsorption plate 332. The second adsorption plate 332 has a structure that is basically the same as that of the first adsorption plate 331, and its adsorption surface is also provided with a number of first clearance grooves 3311 and a number of adsorption elements 3312.

[0112] The first adsorption plate 331 and the second adsorption plate 332 are arranged parallel to each other vertically. Driven synchronously by the flipping drive mechanism 32, the first adsorption plate 331 flips to have its adsorption surface facing down, while the second adsorption plate 332 flips to have its adsorption surface facing up. Conversely, when the first adsorption plate 331 flips to have its adsorption surface facing up, the second adsorption plate 332 flips to have its adsorption surface facing down. In this way, the first adsorption plate 331 and the second adsorption plate 332 can alternately adsorb and flip the battery cells that have undergone the first surface coating, thereby significantly improving the battery cell flipping efficiency of the flipping mechanism.

[0113] Continue to refer to Figure 4 and Figure 5As shown, optionally, the first conveying mechanism 40 includes a second translation mechanism 41, a second lifting mechanism 42, a first rotary drive mechanism 43, and a first gripper 44. Specifically: the second lifting mechanism 42 is connected to the drive end of the second translation mechanism 41, the first rotary drive mechanism 43 is connected to the drive end of the second lifting mechanism 42, and the first gripper 44 is connected to the drive end of the first rotary drive mechanism 43. The first gripper 44 is used to grip the flipped battery cell from the flipping mechanism 30; the second translation mechanism 41 is used to drive the first gripper to translate in front of the flipping mechanism 30 and the second transfer mechanism 50; the second lifting mechanism 42 is used to drive the first gripper 44 to lift and lower; and the first rotary drive mechanism 43 is used to drive the first gripper 44 to rotate in a plane.

[0114] The working process of the first handling mechanism 40 is as follows:

[0115] The second translation mechanism 41 drives the first gripper 44 to translate and move it above the flipping mechanism 30.

[0116] The second lifting mechanism 42 drives the first gripper 44 to descend until the first gripper 44 grabs the flipped battery cell on the flipping mechanism 30, and then the second lifting mechanism 42 drives the first gripper 44 to rise.

[0117] The second translation mechanism 41 drives the first gripper 44 to translate and move it above the second transfer mechanism 50.

[0118] The second lifting mechanism 42 drives the first gripper 44 to descend until the first gripper 44 places the battery cell onto the second transfer mechanism 50.

[0119] In addition, before or during the translation of the first gripper 44 by the second translation mechanism 41, or during the translation of the second lifting mechanism 42 by the first gripper 44 by the second lifting mechanism 42, the first rotation drive mechanism 43 can drive the first gripper 44 to rotate, thereby adjusting the angle of the battery cell and straightening the battery cell.

[0120] As can be seen, through the cooperation of the second translation mechanism 41, the second lifting mechanism 42, the first rotation drive mechanism 43 and the first gripper 44, the first transport mechanism 40 can not only smoothly transport the flipped battery cells from the flipping mechanism 30 to the second transfer mechanism 50, but also realize the angle adjustment of the battery cells.

[0121] Optionally, the battery cell coating device in this embodiment of the invention further includes a first positioning camera 45, such as... Figure 4As shown, the first positioning camera 45 is positioned above the flipping mechanism 30. The first positioning camera 45 is used to acquire the position information of the flipped battery cell on the flipping mechanism 30. The second translation mechanism 41, the second lifting mechanism 42, and the first rotation drive mechanism 43 drive the first gripper 44 based on the position information acquired by the first positioning camera 45, so that the first gripper 44 can accurately pick up the flipped battery cell from the flipping mechanism 30, place the battery cell on the second transfer mechanism 50, and complete the angle adjustment of the battery cell.

[0122] Continue to refer to Figure 4 and Figure 5 As shown, optionally, the second transfer mechanism 50 includes a second carrier plate 51 and a third translation mechanism 52, wherein: the second carrier plate 51 is used to receive and carry the battery cell after the first surface coating is completed, and the third translation mechanism 52 is used to drive the second carrier plate 51 to translate, thereby transferring the battery cell carried on the second carrier plate 51 to the second coating mechanism 60.

[0123] After the battery cell is placed on the second support plate 51, its first surface directly contacts the support surface of the second support plate 51. To prevent the adhesive on the first surface of the battery cell from contacting the support surface of the second support plate 51, optionally, a second clearance groove is provided on the support surface of the second support plate 51. The second clearance groove is used to avoid the straight line where the adhesive application point is located on the first surface of the battery cell. Alternatively, a second clearance hole corresponding to the adhesive application point is provided on the support surface of the second support plate 51. The second clearance hole is used to avoid the adhesive application point on the first surface of the battery cell.

[0124] Optionally, in order to automatically feed the solar cells to be coated onto the first transfer mechanism 10, the solar cell coating device of this embodiment further includes a solar cell feeding mechanism, which is used to supply the solar cells to be coated onto the first transfer mechanism 10.

[0125] like Figure 1 As shown, optionally, the battery cell feeding mechanism includes a cassette conveying mechanism 70, a gripping mechanism 80, a battery cell conveying mechanism 90, a battery cell straightening mechanism 100, and a second transport mechanism 110. Specifically: the cassette conveying mechanism 70 conveys cassettes containing battery cells to be coated to the gripping mechanism 80. The gripping mechanism 80 picks up battery cells from the cassette and places them onto the battery cell conveying mechanism 90. The cassette conveying mechanism 70 also outputs empty cassettes. The battery cell conveying mechanism 90 conveys the battery cells to the battery cell straightening mechanism 100, which straightens the battery cells. The second transport mechanism 110 transports the straightened battery cells onto the first transfer mechanism 10.

[0126] like Figure 10As shown, optionally, the cartridge conveying mechanism 70 includes an upper conveying section 71, a cartridge lifting section 72, and a lower conveying section 73, wherein the lower conveying section 71 is located below the upper conveying section 72. The upper conveying section 71 is used to convey cartridges containing battery cells to be printed to the gripping mechanism 80, and to output empty cartridges. The cartridge lifting section 72 is configured to move vertically; when the cartridge lifting section 72 rises to its high position, it receives the empty cartridges output by the upper conveying section 71. When the cartridge lifting section 72 descends to its low position, it outputs the empty cartridges to the lower conveying section 73, which is used to output the empty cartridges.

[0127] The working process of the material box conveying mechanism 70 in one embodiment is as follows:

[0128] In the initial state, the material box lifting unit 72 rises to the high position, thereby docking with the output end of the upper conveyor unit 71. Then, the upper conveyor unit 71 transports the material box containing the battery cells to be printed to the gripping station of the gripping mechanism 80.

[0129] After the gripping mechanism 80 removes all the battery cells from the material box, the upper conveying unit 71 continues to convey the material box, so that the material box enters the material box lifting unit 72. At the same time, the next material box is conveyed to the gripping station.

[0130] The material box lifting unit 72 descends to its lowest position, thereby docking with the upper end of the lower conveyor unit 73. The material box lifting unit 72 transports the material box to the lower conveyor unit 73, and the lower conveyor unit 73 outputs the material box to the material box recycling station.

[0131] like Figure 11 As shown, optionally, the gripping mechanism 80 includes a third lifting mechanism 81, a second rotary drive mechanism 82, a rotary support 83, a first suction cup group 84, and a second suction cup group 85. The second rotary drive mechanism 82 is connected to the drive end of the third lifting mechanism 81, the rotary support 83 is connected to the drive end of the second rotary drive mechanism 82, and the first suction cup group 84 and the second suction cup group 85 are connected side-by-side to the rotary support 83. The third lifting mechanism 81 drives the rotary support 83 to lift and lower, and the second rotary drive mechanism 82 drives the rotary support 83 to rotate in the plane, thereby causing the first suction cup group 84 and the second suction cup group 85 to rotate and switch between the material box conveying mechanism 70 and the battery cell conveying mechanism 90. Specifically, when the first suction cup group 84 rotates to the material box conveying mechanism 70, the second suction cup group 85 rotates to the battery cell conveying mechanism 90. Conversely, when the first suction cup group 84 rotates to the battery cell conveying mechanism 90, the second suction cup group 85 rotates to the material box conveying mechanism 70.

[0132] The working process of the gripping mechanism 80 in one embodiment is as follows:

[0133] Taking the initial state as an example, where the first suction cup group 84 is located above the material box conveying mechanism 70 and the second suction cup group 85 is located above the battery cell conveying mechanism 90:

[0134] The third lifting mechanism 81 drives the rotating bracket 83 to descend, the first suction cup group 84 picks up the battery cells in the material box from the material box conveying mechanism 70, and then the third lifting mechanism 81 drives the rotating bracket 83 to rise to the high position.

[0135] The second rotary drive mechanism 82 drives the rotary support 83 to rotate in the plane, so that the first suction cup group 84 rotates above the battery cell conveying mechanism 90 and the second suction cup group 85 rotates above the material box conveying mechanism 70.

[0136] The third lifting mechanism 81 drives the rotating bracket 83 to descend again, the first suction cup group 84 places the picked-up battery cell onto the battery cell conveying mechanism 90, at the same time, the second suction cup group 85 picks up the battery cell in the material box of the material box conveying mechanism 70, and then the third lifting mechanism 81 drives the rotating bracket 83 to rise to the high position.

[0137] The second rotary drive mechanism 82 drives the rotary support 83 to rotate in the plane, causing the second suction cup group 85 to rotate above the cell conveying mechanism 90, and the first suction cup group 84 to rotate above the material box conveying mechanism 70. This cycle continues, completing the uninterrupted picking and transfer of cells.

[0138] It can be seen that the cooperation of the third lifting mechanism 81, the second rotary drive mechanism 82, the first suction cup group 84 and the second suction cup group 85 can achieve quick grasping and release of the battery cells, thus improving the cell retrieval efficiency.

[0139] Optionally, both the first suction cup group 84 and the second suction cup group 85 include two sets of suction cups. The two sets of suction cups can work together to pick up a first battery cell with a larger size (such as a whole battery cell) and can also pick up a second battery cell with a smaller size (such as a half battery cell) separately, thereby achieving compatible transfer of the first battery cell and the second battery cell.

[0140] like Figure 12 As shown, optionally, the cell conveying mechanism 90 includes a mounting bracket 91, a driver 92, a drive roller 93, a driven roller 94, a first conveyor belt 95, and a second conveyor belt 96. The drive roller 93 is mounted at the first end of the mounting bracket 91, the driven roller 94 is mounted at the second end of the mounting bracket 91, and the drive end of the driver 92 is connected to the drive roller 93. The first conveyor belt 95 and the second conveyor belt 96 are wound side-by-side around the drive roller 93 and the driven roller 94.

[0141] The first conveyor belt 95 and the second conveyor belt 96 can be used to transport a first battery cell with a larger size (such as a whole battery cell). That is, the first suction cup group 84 or the second suction cup group 85 of the gripping mechanism 80 places a first battery cell picked up from the material box onto the first conveyor belt 95 and the second conveyor belt 96. The first conveyor belt 95 and the second conveyor belt 96 work together to transport the first battery cell toward the battery cell straightening mechanism 100.

[0142] The first conveyor belt 95 and the second conveyor belt 96 can also synchronously transport two side-by-side second battery cells with smaller dimensions (such as half battery cells). That is, the first suction cup group 84 or the second suction cup group 85 of the gripping mechanism 80 picks up two side-by-side second battery cells from the material box and places them on the first conveyor belt 95 and the second conveyor belt 96 respectively. The first conveyor belt 95 and the second conveyor belt 96 drive the two second battery cells to be synchronously transported toward the battery cell straightening mechanism 100.

[0143] like Figure 13 As shown, the battery cell straightening mechanism 100 includes a base plate 101, a first straightening part 102, a second straightening part 103, and a third straightening part 104. The first straightening part 102 and the second straightening part 103 are arranged in pairs on the base plate 101. The first straightening part 102 is located on the side of the first conveyor belt 95, and the second straightening part 103 is located on the side of the second conveyor belt 96. The third straightening part 104 is removably mounted on the base plate 101. After the third straightening part 104 is removed from the base plate 101, the first straightening part 102 and the second straightening part 103 straighten the first battery cell (e.g., a whole battery cell) that is being conveyed by the first and second conveyor belts 95. After the third alignment part 104 is installed on the base plate 101, the third alignment part 104 is located between the first conveyor belt 95 and the second conveyor belt 96. The third alignment part 104 and the first alignment part 102 align the second battery cell (such as half battery cell) conveyed by the first conveyor belt, and the third alignment part 104 and the second alignment part 103 align the second battery cell (such as half battery cell) conveyed by the second conveyor belt 96.

[0144] The working principle of the cell alignment mechanism 100 is as follows:

[0145] When the cell conveying mechanism 90 is conveying a large first cell (such as a whole cell), that is, the first cell is carried on the first conveyor belt 95 and the second conveyor belt 96, the first conveyor belt 95 and the second conveyor belt 96 cooperate to convey the first cell.

[0146] In this case, the third aligning part 104 needs to be removed from the base plate 101, so that a first aligning space for aligning the first battery cell is formed between the first aligning part 102 and the second aligning part 103.

[0147] The first battery cell enters the first straightening space under the combined conveying of the first conveyor belt 95 and the second conveyor belt 96. The first straightening part 102 and the second straightening part 103 work together to straighten the first battery cell from both sides. For example, straightening wheels are respectively provided on the first straightening part 102 and the second straightening part 103. The straightening wheels on the first straightening part 102 and the second straightening part 103 approach the battery cell from both sides to straighten the battery cell, ensuring that the side of the battery cell is parallel to the conveying direction.

[0148] When the cell conveying mechanism 90 conveys two second cells placed side by side (such as half cells), that is, the two second cells are respectively carried on the first conveyor belt 95 and the second conveyor belt 96, the first conveyor belt 95 and the second conveyor belt 96 drive the two second cells to be conveyed synchronously toward the cell straightening mechanism 100.

[0149] In this case, the third alignment part 104 needs to be installed on the base plate 101 so that a second alignment space and a third alignment space for aligning a second battery cell are formed between the first alignment part 102 and the third alignment part 104, and between the second alignment part 103 and the third alignment part 104, respectively.

[0150] Two second solar cells are synchronously driven into the second and third alignment spaces by the first conveyor belt 95 and the second conveyor belt 96. During this process, the first alignment section 102 and the third alignment section 104 cooperate to alignment one second solar cell from both sides, and the second alignment section 103 and the third alignment section 104 cooperate to alignment the other second solar cell from both sides. For example, alignment wheels are respectively provided on the first alignment section 102, the second alignment section 103, and the third alignment section 104, with the third alignment section 104 fixed. The alignment wheels on the first alignment section 102 and the second alignment section 103 approach the solar cells from both sides to alignment the two solar cells, ensuring that the sides of the two solar cells are parallel to the conveying direction.

[0151] like Figure 14 As shown, optionally, the second transport mechanism 110 includes a fourth translation mechanism 111, a fourth lifting mechanism 112, and a second gripper 113, wherein: the fourth lifting mechanism 112 is connected to the drive end of the fourth translation mechanism 111, and the second gripper 113 is connected to the drive end of the fourth lifting mechanism. The second gripper 113 is provided with a first picking-up part and a second picking-up part, which are used to pick up the shaped battery cells from the battery cell conveying mechanism 90; the fourth lifting mechanism 112 is used to drive the second gripper 113 to lift and lower; and the fourth translation mechanism 111 is used to drive the second gripper to translate so as to transport the battery cells to the first transfer mechanism 10.

[0152] Driven by the cooperation of the fourth translation mechanism 111 and the fourth lifting mechanism 112, the second gripper 113 can transport the battery cells on the battery cell conveying mechanism 90 to the first transfer mechanism 10.

[0153] Specifically, by configuring the second gripper 113 to include a first picking section and a second picking section, the second gripper 113 can both pick up and transport a large-sized first battery cell (such as a whole battery cell), that is, the first picking section and the second picking section work together to pick up a first battery cell. It can also simultaneously pick up and transport two smaller-sized second battery cells (such as half-cells) transported side-by-side, that is, the first picking section and the second picking section each pick up a second battery cell.

[0154] Optionally, the solar cell coating device in this embodiment of the invention further includes a second positioning camera 130 disposed above the unloading end of the solar cell conveying mechanism 90. The second positioning camera 130 is used to acquire information about the shaped solar cells located at the unloading end of the solar cell conveying mechanism 90. Based on the information about the solar cells acquired by the second positioning camera 130, the fourth translation mechanism 111 and the fourth lifting mechanism 112 control the movement of the second gripper 113, thereby achieving accurate gripping of the shaped solar cells.

[0155] In one embodiment, the conveying direction of the battery cell conveying mechanism 90 is parallel to the conveying direction of the first transfer mechanism 10. The fourth translation mechanism 111 drives the second gripper 113 to translate along a direction perpendicular to the conveying direction of the battery cell conveying mechanism 90 to transport the battery cell onto the first transfer mechanism 10. The first translation mechanism 12 controls the movement of the first carrier plate 11 based on the information of the battery cell obtained by the second positioning camera 130, thereby achieving accurate carrying of the sized battery cell. For example, when the first and second picking parts of the second gripper 113 pick up a second battery cell respectively, the first carrier plate 11 can move forward or backward according to the position information of the two battery cells after receiving one second battery cell, and then receive another second battery cell. This compensates for the possible front-to-back position difference of the two second battery cells along the conveying direction after sizing, ensuring that the two second battery cells are completely aligned on the first carrier plate 11, thus guaranteeing the subsequent adhesive application effect.

[0156] Continue to refer to Figures 1 to 3 As shown, optionally, the battery cell coating device in this embodiment of the invention further includes a feeding mechanism 120 disposed on the side of the second coating mechanism 60. The feeding mechanism 120 is used to feed the battery cells that have completed the second surface coating from the second transfer mechanism 50.

[0157] Optionally, both the first adhesive application mechanism 20 and the second adhesive application mechanism 60 employ screen printing adhesive mechanisms, where the mesh arrangement of the screen printing stencil matches the pre-set adhesive dots on the solar cell to be coated. By using screen printing adhesive mechanisms to apply adhesive to both surfaces of the solar cell via screen printing, the adhesive application efficiency is significantly improved.

[0158] Second embodiment:

[0159] The overall structure and working principle of the cell coating device provided in this embodiment are basically the same as those of the cell coating device provided in the first embodiment above. For the sake of brevity, the following will focus on describing the technical differences between this embodiment and the first embodiment above. For other technical differences, please refer to the relevant descriptions in the first embodiment above.

[0160] Furthermore, components in this embodiment that are the same as those in the first embodiment are generally referred to by the same reference numerals as those in the first embodiment, without causing confusion.

[0161] like Figure 15 As shown, the battery cell coating apparatus provided in this embodiment includes a first transfer mechanism 10, a first coating mechanism 20, a flipping mechanism 30, a first transport mechanism 40, a second transfer mechanism 50, and a second coating mechanism 60, wherein:

[0162] The first transfer mechanism 10 receives the battery cells to be coated and sequentially transfers them to the first coating mechanism 20 and the flipping mechanism 30. The first coating mechanism 20 applies coating to the first surface of the battery cells. The flipping mechanism 30 picks up the battery cells with the first surface coated from the first transfer mechanism 10 and flips them. The first transport mechanism 40 picks up the flipped battery cells from the flipping mechanism 30 and transports them to the second transfer mechanism 50. The second transfer mechanism 50 transfers the battery cells to the second coating mechanism 60. The second coating mechanism 60 applies coating to the second surface of the battery cells.

[0163] The working process of the battery cell coating device provided in this embodiment is as follows:

[0164] The first transfer mechanism 10 receives the battery cells to be coated by the battery cell feeding device or by manual handling, and transports the battery cells toward the first coating mechanism 20 and the flipping mechanism 30.

[0165] When the solar cell is conveyed to the first adhesive application station of the first adhesive application mechanism 20, the first adhesive application mechanism 20 completes the adhesive application to the first surface of the solar cell that is currently facing upwards. Generally, the adhesive application points are located between two adjacent sub-busbars of the solar cell, and the adhesive application points are arranged in multiple rows at intervals, with each row of adhesive application points corresponding to a solder strip.

[0166] When the battery cell with the first surface adhesive applied is transported to the flipping station of the flipping mechanism 30, the flipping mechanism 30 picks up the battery cell from the first transfer mechanism 10 and flips the battery cell 180° so that the first surface of the battery cell with adhesive applied is facing down and the second surface without adhesive applied is facing up.

[0167] Next, the first transport mechanism 40 picks up the flipped battery cell from the flipping mechanism 30 and transports the battery cell to the second transfer mechanism 50.

[0168] The second transfer mechanism 50 conveys the battery cells toward the second coating mechanism 60.

[0169] When the solar cell reaches the second adhesive application station of the second adhesive application mechanism 60, the second adhesive application mechanism 60 completes the adhesive application to the second surface of the solar cell that is currently facing upward.

[0170] As can be seen, through the cooperation of the first transfer mechanism 10, the first adhesive application mechanism 20, the flipping mechanism 30, the first transport mechanism 40, the second transfer mechanism 50 and the second adhesive application mechanism 60, the battery cell adhesive application device of this embodiment of the invention realizes continuous and automatic adhesive application to the two surfaces of the battery cell, thereby greatly improving the adhesive application efficiency and ensuring the adhesive application effect.

[0171] Continue to refer to Figure 15 As shown, in this embodiment, the main components of the battery cell coating mechanism are located or approximately located on the same straight line.

[0172] like Figure 16 As shown, compared with the first embodiment above, the first transfer mechanism 10 in this embodiment includes a first carrier plate 11 and a first translation mechanism 12, as well as a first carrier plate lifting mechanism 13, which is used to drive the first carrier plate 11 to lift.

[0173] Thus, the first transfer mechanism 10 can not only sequentially transfer the battery cells to the first adhesive application mechanism 20 and the flipping mechanism 30, but also push the battery cells upwards when the first transfer mechanism 10 moves the battery cells below the flipping mechanism 30, so that the battery cells are close to the adsorption component of the flipping mechanism 30, thereby ensuring that the adsorption component of the flipping mechanism 30 can successfully adsorb the battery cells.

[0174] Since the first transfer mechanism 10 can push the battery cells upward to the adsorption component of the flipping mechanism 30, the flipping mechanism 30 in this embodiment does not need to be additionally equipped with a first lifting mechanism to drive the adsorption component to rise and fall. That is, in this embodiment, the flipping mechanism 30 includes a flipping drive mechanism and an adsorption component, wherein the flipping drive mechanism is fixedly installed, and the adsorption component is connected to the drive end of the flipping drive mechanism. The adsorption component is used to adsorb the battery cells pushed upward by the first transfer mechanism 10, and the flipping drive mechanism is used to drive the adsorption component to flip so as to cause the battery cells adsorbed by the adsorption component to flip.

[0175] like Figure 17 As shown, optionally, the flipping mechanism 30 in this embodiment specifically includes: a first support 34, a self-aligning bearing 35, a second support 36, a mounting bracket 37, a rotating shaft 38, a rotating drive mechanism 39, and an adsorption assembly 33, wherein: the rotating shaft 38 and the rotating drive mechanism 39 together constitute the aforementioned flipping drive mechanism; the self-aligning bearing 35 is mounted on the first support 34. The rotating drive mechanism 39 is mounted on the mounting bracket 37. The first end of the rotating shaft 38 is mounted inside the self-aligning bearing 35, and the second end of the rotating shaft 38 is connected to the drive end of the rotating drive mechanism 39. The mounting bracket 37 is adjustablely mounted on the second support 36. The position adjustment direction of the mounting bracket 37 can be either a horizontal rotation around the first end of the rotating shaft 38 or a vertical rotation. The adsorption assembly 33 is mounted on the rotating shaft 38. The adsorption assembly 33 is used to adsorb battery cells, and the rotating drive mechanism 39 and the rotating shaft 38 are used to drive the adsorption assembly 33 to flip, thereby causing the battery cells adsorbed by the adsorption assembly 33 to flip.

[0176] The rotating shaft 38 is driven to rotate by the rotating drive mechanism 39, which in turn causes the adsorption component 310 to flip. This achieves automatic flipping of the battery cells.

[0177] Specifically, in the flipping mechanism 30 of this invention, the first end of the rotating shaft 38 is mounted in the self-aligning bearing 35, and the second end of the rotating shaft 38 is mounted on the position-adjustable mounting bracket 37. By adjusting the mounting bracket 37 to rotate horizontally around the first end of the rotating shaft 38 during equipment debugging, or by adjusting the mounting bracket 37 to rise and fall vertically, the position of the second end of the rotating shaft 38 in the horizontal and vertical directions can be adjusted, thereby adjusting the position of the adsorption component 33, correcting the position of the adsorption component 33, and ultimately eliminating the angular deviation of the battery cell after flipping, ensuring the positional accuracy of the battery cell after flipping during continuous production.

[0178] Because the flipping mechanism 30 can eliminate the angular deviation after the battery cells are flipped, unlike the first embodiment, in this embodiment, the first conveying mechanism 40 in the downstream process does not need to adjust the angle of the battery cells, and therefore it does not need to set up the first rotation drive mechanism 43 to rotate and adjust the battery cells. That is, in this embodiment, as... Figure 16 As shown, the first conveying mechanism 40 includes a second translation mechanism 41, a second lifting mechanism 42, and a first gripper 44, wherein: the second lifting mechanism 42 is connected to the drive end of the second translation mechanism 41, and the first gripper 44 is connected to the drive end of the second lifting mechanism 42. The first gripper 44 is used to grip the flipped battery cell from the flipping mechanism 30, the second translation mechanism 41 is used to drive the first gripper 44 to translate between the flipping mechanism 30 and the second transfer mechanism 50, and the second lifting mechanism 42 is used to drive the first gripper 44 to lift.

[0179] In this embodiment, the working process of the first conveying mechanism 40 is as follows:

[0180] The second translation mechanism 41 drives the first gripper 44 to translate and move it above the flipping mechanism 30.

[0181] The second lifting mechanism 42 drives the first gripper 44 to descend until the first gripper 44 grabs the flipped battery cell on the flipping mechanism 30, and then the second lifting mechanism 42 drives the first gripper 44 to rise.

[0182] The second translation mechanism 41 drives the first gripper 44 to translate and move it above the second transfer mechanism 50.

[0183] The second lifting mechanism 42 drives the first gripper 44 to descend until the first gripper 44 places the battery cell onto the second transfer mechanism 50.

[0184] In this embodiment, optionally, the second transfer mechanism 50 includes a second carrier plate 51 and a third translation mechanism 52, as well as a second carrier plate lifting mechanism, which is used to drive the second carrier plate 51 to rise and fall.

[0185] After the flipping mechanism 30 completes the flipping of the battery cell, the second carrier plate 51 of the second transfer mechanism 50 moves to below the first transport mechanism 40 under the drive of the third translation mechanism 52. Then, the second carrier plate lifting mechanism drives the second carrier plate 51 to rise or fall to a predetermined height. This allows the first transport mechanism 40 to smoothly place the flipped battery cell picked up from the flipping mechanism 30 onto the second carrier plate 51.

[0186] Similar to the first embodiment described above, the cell coating device in this embodiment also includes a cell feeding mechanism, which is used to supply the cells to be coated to the first transfer mechanism 10.

[0187] like Figure 15 As shown, similar to the first embodiment, the cell feeding mechanism in this embodiment includes a cell conveying mechanism 70, a gripping mechanism 80, a cell conveying mechanism 90, a cell straightening mechanism 100, and a second transport mechanism 110, wherein:

[0188] The cassette conveying mechanism 70 transports cassettes containing solar cells to be coated to the gripping mechanism 80. The gripping mechanism 80 picks up solar cells from the cassette and places them onto the solar cell conveying mechanism 90. The cassette conveying mechanism 70 also outputs empty cassettes. The solar cell conveying mechanism 90 transports the solar cells to the solar cell straightening mechanism 100, which straightens the solar cells. The second transport mechanism 110 transports the straightened solar cells onto the first transfer mechanism 10.

[0189] like Figure 18 As shown, optionally, the battery cell conveying mechanism 90 in this embodiment includes a mounting bracket 91, a driver 92, a drive roller 93, a driven roller 94, and a conveyor belt 97, wherein: the drive roller 93 is mounted on the first end of the mounting bracket 91, the driven roller 94 is mounted on the second end of the mounting bracket 91, and the drive end of the driver 92 is connected to the drive roller 93 for transmission. The conveyor belt 97 is wound around the drive roller 93 and the driven roller 94.

[0190] The gripping mechanism 80 picks up the battery cells from the material box conveying mechanism 70 and feeds them onto the conveyor belt 97 at intervals along the conveying direction of the conveyor belt 97. The conveyor belt 97 then conveys the battery cells toward the battery cell straightening mechanism 100.

[0191] like Figure 19 As shown, in this embodiment, the battery cell straightening mechanism 100 includes a base plate, a fourth straightening part 105, and a fifth straightening part 106. The fourth straightening part 105 and the fifth straightening part 106 are arranged in pairs on the base plate. The fourth straightening part 105 is located on the first side of the conveyor belt 97, and the fifth straightening part 106 is located on the second side of the conveyor belt 97. The fourth straightening part 105 and the fifth straightening part 106 are configured to be able to move closer to or further away from each other. When the fourth straightening part 105 and the fifth straightening part 106 move closer to each other, they simultaneously straighten two battery cells on the conveyor belt 97 so that the sides of the battery cells are parallel to the conveying direction of the conveyor belt 97.

[0192] After two consecutive solar cells are driven by conveyor belt 97 into the alignment space between fourth alignment section 105 and fifth alignment section 106, conveyor belt 97 stops conveying. Then, fourth alignment section 105 and fifth alignment section 106 cooperate to align the two solar cells from both sides, thereby ensuring that the sides of the two solar cells are parallel to the conveying direction of conveyor belt 97.

[0193] As can be seen, the battery cell straightening mechanism 100 in this embodiment can simultaneously straighten two consecutive battery cells conveyed on the conveyor belt 97, so that the subsequent second transport mechanism 110 can simultaneously pick up two straightened battery cells from the conveyor belt 97.

[0194] Continue to refer to Figure 19 As shown, the fourth straightening section 105 includes a first straightening wheel set 1051 and a second straightening wheel set 1052 arranged along the conveying direction of the conveyor belt 97. Correspondingly, the fifth straightening section 106 includes a third straightening wheel set 1061 and a fourth straightening wheel set 1062 arranged along the conveying direction of the conveyor belt 97.

[0195] Driven by conveyor belt 97, two consecutive solar cells enter the first alignment sub-space between the first alignment roller group 1051 and the third alignment roller group 1061, and the second alignment sub-space between the second alignment roller group 1052 and the fourth alignment roller group 1062, respectively. Then, the fourth alignment section 105 and the fifth alignment section 106 approach each other. The first alignment roller group 1051 and the third alignment roller group 1061 alignment the solar cells located in the first alignment sub-space, while the second alignment roller group 1052 and the fourth alignment roller group 1062 alignment the solar cells located in the second alignment sub-space.

[0196] Continue to refer to Figure 19 As shown, the first aligning roller group 1051, the second aligning roller group 1052, the third aligning roller group 1061, and the fourth aligning roller group 1062 each include at least two aligning rollers arranged side by side along the conveying direction of the conveyor belt 97, and the installation position of each aligning roller can be adjusted independently. By adjusting the installation position of each aligning roller, it can be ensured that each aligning roller can contact the corresponding edge of the solar cell being aligned, thereby ensuring the alignment effect.

[0197] Optionally, each sizing wheel assembly has several mounting guide grooves arranged side-by-side on its sizing wheel mounting plate, perpendicular to the conveyor belt 97's conveying direction. Each sizing wheel is mounted on a sizing wheel mounting rod, which is inserted into the corresponding mounting guide groove. By adjusting the position of the mounting rod within the guide groove, the position of the sizing wheel can be adjusted, ensuring that each sizing wheel contacts the corresponding edge of the sizing cell. Furthermore, in each sizing wheel assembly, the number of mounting guide grooves exceeds the number of sizing wheels. This allows for the selection of appropriate mounting guide grooves to install the sizing wheels based on the cell size, enabling adjustment of the spacing between the sizing wheels and ensuring that the sizing wheel assembly can meet the sizing requirements of cells of different sizes.

[0198] After the cell straightening mechanism 100 straightens two consecutive cells, the second conveying mechanism 110 simultaneously picks up the two straightened cells from the conveyor belt 97. However, as those skilled in the art know, the spacing between the two straightened cells on the cell conveying mechanism 90 may be too large or too small, which does not meet the requirements for printing.

[0199] To solve this problem, alternatively, such as Figure 18 As shown, the second transport mechanism 110 in this embodiment includes a fifth translation mechanism 114, a fifth lifting mechanism 115, a sixth lifting mechanism 116, a third gripper 117, and a fourth gripper 118, wherein:

[0200] The fifth lifting mechanism 115 and the sixth lifting mechanism 116 are both connected to the drive end of the fifth translation mechanism 114. The third gripper 117 is connected to the drive end of the fifth lifting mechanism 115, and the fourth gripper 118 is connected to the drive end of the sixth lifting mechanism 116.

[0201] The third gripper 117 is used to pick up one of the shaped battery cells from the battery cell conveying mechanism 90, the fourth gripper 118 is used to pick up the other shaped battery cell from the battery cell conveying mechanism 90, the fifth lifting mechanism 115 is used to drive the third gripper 117 to lift, the sixth lifting mechanism 116 is used to drive the fourth gripper 118 to lift, and the fifth translation mechanism 114 is used to drive the third gripper 117 and the fourth gripper 118 to translate to transport the two battery cells onto the first transfer mechanism 10.

[0202] Optionally, the second transport mechanism 110 in this embodiment transports two consecutive battery cells as follows:

[0203] Driven by the fifth lifting mechanism 115, the third gripper 117 descends first and picks up a battery cell from the battery cell conveying mechanism 90.

[0204] The fifth lifting mechanism 115 rises and returns to its original position.

[0205] The fifth translation mechanism 114 then drives the third gripper 117 and the fourth gripper 118 to move synchronously a predetermined distance, with the translation direction parallel to the conveying direction of the battery cell conveying mechanism 90.

[0206] After being moved into position, driven by the sixth lifting mechanism 116, the fourth gripper 118 descends and picks up another battery cell, so that the spacing between the two picked-up battery cells meets the printing requirements.

[0207] Finally, the fifth translation mechanism 114 drives the third gripper 117 and the fourth gripper 118 to move synchronously above the first transfer mechanism 10. The third gripper 117 and the fourth gripper 118 release the battery cells at the same time, so that the two battery cells fall onto the first transfer mechanism 10.

[0208] As can be seen, the second transport mechanism 110 in this embodiment can simultaneously pick up two shaped battery cells from the battery cell transport mechanism 90, and adjust the spacing between the two shaped battery cells during the picking process.

[0209] Similar to the first embodiment, the cell coating device in this embodiment may also include a second positioning camera 130 disposed above the unloading end of the cell conveying mechanism 90. The second positioning camera 130 is used to acquire the position information of the two aligned cells located at the unloading end of the cell conveying mechanism 90. Based on the position information of the two cells acquired by the second positioning camera 130, the fifth translation mechanism 114, the fifth lifting mechanism 115, and the sixth lifting mechanism 116 control the movement of the third gripper 117 and the fourth gripper 118, thereby achieving accurate gripping and spacing adjustment of the two aligned cells.

[0210] like Figure 15 and Figure 20 As shown, the cell coating device in this embodiment also includes a feeding mechanism 120 and a cell output mechanism 140. The feeding mechanism 120 is disposed on the side of the second coating mechanism 60, and the cell output mechanism 140 is disposed after the feeding mechanism 120.

[0211] The unloading mechanism 120 picks up the battery cells that have undergone the second surface coating from the second transfer mechanism 50 and unloads the picked-up battery cells onto the battery cell output mechanism 140. Optionally, the unloading mechanism 120 unloads two battery cells at a time.

[0212] The cell output mechanism 140 is used to output the cells that have undergone the second surface coating to the next processing station. Optionally, the cell output mechanism 140 includes a translation drive mechanism 141 and two receiving rails 142 arranged side by side on the translation drive mechanism 141. Both receiving rails 142 are provided with adsorption holes, and only the two side edges of the cell are adsorbed onto the two receiving rails 142, thus avoiding the adhesive dots on the cell.

[0213] By setting the lengths of the two receiving rails 142, each rail can simultaneously carry at least two solar cells. After the feeding mechanism 120 feeds at least two solar cells onto the two receiving rails 142, the translation drive mechanism drives the two receiving rails 142 to translate, thereby outputting the solar cells to the next workstation.

[0214] To further improve the coating efficiency, the present invention also provides a battery cell coating device, which includes two battery cell coating devices arranged in parallel to perform coating operations on the battery cells simultaneously.

[0215] Since the main components of the cell coating apparatus in the second embodiment are located or are processed on the same straight line, it is preferable to integrate the two cell coating apparatuses of the second embodiment on the same machine to form the cell coating equipment of the present invention.

[0216] The present invention has been described above in sufficient detail and with certain specificities. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and all changes made without departing from the true spirit and scope of the invention should fall within the protection scope of the invention. The scope of protection claimed by the present invention is defined by the claims, and not by the above descriptions in the embodiments.

Claims

1. A battery cell coating device, characterized in that, The battery cell coating device includes a first transfer mechanism, a first coating mechanism, a flipping mechanism, a first handling mechanism, a second transfer mechanism, and a second coating mechanism, wherein: The first transfer mechanism is used to receive the battery cell to be coated and to transfer the battery cell sequentially to the first coating mechanism and the flipping mechanism; The first adhesive application mechanism is used to apply adhesive to the first surface of the battery cell; The flipping mechanism is used to pick up the battery cell that has completed the first surface coating from the first transfer mechanism and flip the battery cell. The first conveying mechanism is used to pick up the flipped battery cell from the flipping mechanism and convey the battery cell to the second transfer mechanism; The second transfer mechanism is used to transfer the battery cell to the second coating mechanism; The second adhesive application mechanism is used to apply adhesive to the second surface of the battery cell; The solar cell coating device further includes a solar cell feeding mechanism, which includes a solar cell conveying mechanism, a solar cell straightening mechanism, and a second transport mechanism. The solar cell conveying mechanism includes a conveyor belt, and solar cells are placed sequentially at intervals along the conveying direction of the conveyor belt. The solar cell straightening mechanism includes a fourth straightening part and a fifth straightening part, which are configured to be able to move closer to or further away from each other. When the fourth straightening part and the fifth straightening part move closer to each other, they simultaneously straighten two solar cells on the conveyor belt so that the sides of the solar cells are parallel to the conveying direction of the conveyor belt. The second transport mechanism includes a fifth translation mechanism, a fifth lifting mechanism, a sixth lifting mechanism, a third gripper, and a fourth gripper, wherein: the fifth lifting mechanism and the sixth lifting mechanism are jointly connected to the drive end of the fifth translation mechanism; the third gripper is connected to the drive end of the fifth lifting mechanism; and the fourth gripper is connected to the drive end of the sixth lifting mechanism. The third gripper is used to pick up one of the shaped battery cells from the battery cell conveying mechanism, and the fourth gripper is used to pick up the other shaped battery cell from the battery cell conveying mechanism. The fifth lifting mechanism is used to drive the third gripper to move up and down, the sixth lifting mechanism is used to drive the fourth gripper to move up and down, and the fifth translation mechanism is used to drive the third gripper and the fourth gripper to move along a direction parallel to the conveying direction of the battery cell conveying mechanism, so as to transport the two battery cells to the first transfer mechanism.

2. The cell coating apparatus as described in claim 1, characterized in that, The first transfer mechanism includes a first support plate and a first translation mechanism, wherein: The first support plate is used to receive and support the battery cells to be coated; The first translation mechanism is used to drive the first carrier plate to translate, so as to sequentially transfer the battery cells carried on the first carrier plate to the first adhesive application mechanism and the flipping mechanism.

3. The cell coating apparatus as described in claim 1, characterized in that, The flipping mechanism includes a first lifting mechanism, a flipping drive mechanism, and an adsorption component, wherein: The flipping drive mechanism is connected to the drive end of the first lifting mechanism, and the adsorption component is connected to the drive end of the flipping drive mechanism. The first lifting mechanism is used to drive the adsorption component to lift and lower, the adsorption component is used to adsorb the battery cell, and the flipping drive mechanism is used to drive the adsorption component to flip so as to cause the battery cell adsorbed by the adsorption component to flip.

4. The cell coating apparatus as described in claim 2, characterized in that, The first transfer mechanism further includes a first carrier plate lifting mechanism, which is used to drive the first carrier plate to lift and lower; the flipping mechanism includes a flipping drive mechanism and an adsorption component, the flipping drive mechanism is fixedly installed, and the adsorption component is connected to the drive end of the flipping drive mechanism; the adsorption component is used to adsorb the battery cell, and the flipping drive mechanism is used to drive the adsorption component to flip so as to cause the battery cell adsorbed by the adsorption component to flip.

5. The cell coating apparatus as described in claim 3 or 4, characterized in that, The adsorption assembly includes a first adsorption plate, which can adsorb at least one of the battery cells. The adsorption surface of the first adsorption plate is provided with a plurality of first clearance grooves and a plurality of adsorption elements, wherein: The adsorption element is disposed between adjacent first clearance slots; The first adsorption plate adsorbs the battery cell via the adsorption member, and the first clearance groove is used to avoid the straight line where the adhesive application point is located on the first surface of the battery cell.

6. The cell coating apparatus as described in claim 5, characterized in that, The adsorption assembly further includes a second adsorption plate, which has the same structure as the first adsorption plate, and the first adsorption plate and the second adsorption plate are arranged parallel to each other vertically. The first adsorption plate and the second adsorption plate are rotated synchronously under the drive of the rotation driving mechanism. When the first adsorption plate rotates to the position where the adsorption surface faces down, the second adsorption plate rotates to the position where the adsorption surface faces up; when the first adsorption plate rotates to the position where the adsorption surface faces up, the second adsorption plate rotates to the position where the adsorption surface faces down.

7. The cell coating apparatus as described in claim 1, characterized in that, The first conveying mechanism includes a second translation mechanism, a second lifting mechanism, a first rotary drive mechanism, and a first gripper, wherein: The second lifting mechanism is connected to the drive end of the second translation mechanism, the first rotation drive mechanism is connected to the drive end of the second lifting mechanism, and the first gripper is connected to the drive end of the first rotation drive mechanism. The first gripper is used to grab the flipped battery cell from the flipping mechanism, the second translation mechanism is used to drive the first gripper to translate in front of the flipping mechanism and the second transfer mechanism, the second lifting mechanism is used to drive the first gripper to lift, and the first rotation drive mechanism is used to drive the first gripper to rotate in the plane.

8. The cell coating apparatus as described in claim 1, characterized in that, The first conveying mechanism includes a second translation mechanism, a second lifting mechanism, and a first gripper, wherein: The second lifting mechanism is connected to the drive end of the second translation mechanism, and the first gripper is connected to the drive end of the second lifting mechanism; The first gripper is used to grab the flipped battery cell from the flipping mechanism, the second translation mechanism is used to drive the first gripper to translate in front of the flipping mechanism and the second transfer mechanism, and the second lifting mechanism is used to drive the first gripper to lift.

9. The cell coating apparatus as described in claim 1, characterized in that, The second transfer mechanism includes a second support plate and a third translation mechanism, wherein: The second support plate is used to receive and support the battery cell after the first surface coating has been applied; The third translation mechanism is used to drive the second carrier plate to translate, so as to transfer the battery cell carried on the second carrier plate to the second adhesive application mechanism.

10. The cell coating apparatus as described in claim 9, characterized in that, A second clearance groove is provided on the bearing surface of the second carrier plate. The second clearance groove is used to avoid the straight line where the adhesive application point is located on the first surface of the battery cell; or, The second bearing plate has a second clearance hole on its bearing surface, which is used to avoid the adhesive application point on the first surface of the battery cell.

11. The cell coating apparatus as described in claim 1, characterized in that, The cell feeding mechanism is used to supply the cells to be coated with adhesive to the first transfer mechanism; the cell feeding mechanism further includes a material box conveying mechanism and a gripping mechanism, wherein: The material box conveying mechanism is used to convey the material box containing the battery cells to be coated to the gripping mechanism; The gripping mechanism is used to pick up the battery cell from the material box and place the picked-up battery cell onto the battery cell conveying mechanism. The material box conveying mechanism is also used to output the empty material box. The cell conveying mechanism is used to convey the cell to the cell straightening mechanism; The cell straightening mechanism is used to straighten the cells. The second transport mechanism is used to transport the shaped battery cells to the first transfer mechanism.

12. The cell coating apparatus as described in claim 11, characterized in that, The material box conveying mechanism includes an upper conveying section, a material box lifting section, and a lower conveying section, wherein: The lower conveying section is located below the upper conveying section; The upper conveying unit is used to convey the cassette containing the battery cells to be coated to the gripping mechanism, and to output the empty cassette. The material box lifting unit is configured to be able to move up and down in the vertical direction. When the material box lifting unit rises to the high position, it receives the empty material box output by the upper conveyor unit. When the material box lifting unit falls to the low position, it outputs the empty material box to the lower conveyor unit, which is used to output the empty material box.

13. The cell coating apparatus as described in claim 11, characterized in that, The gripping mechanism includes a third lifting mechanism, a second rotary drive mechanism, a rotary support, a first suction cup assembly, and a second suction cup assembly, wherein: The second rotary drive mechanism is connected to the drive end of the third lifting mechanism, the rotary bracket is connected to the drive end of the second rotary drive mechanism, and the first suction cup group and the second suction cup group are connected side by side to the rotary bracket; The third lifting mechanism is used to drive the rotating bracket to lift and lower, and the second rotating drive mechanism is used to drive the rotating bracket to rotate in the plane, thereby driving the first suction cup group and the second suction cup group to rotate and switch between the material box conveying mechanism and the battery cell conveying mechanism. When the first suction cup group rotates to the material box conveying mechanism, the second suction cup group rotates to the battery cell conveying mechanism; when the first suction cup group rotates to the battery cell conveying mechanism, the second suction cup group rotates to the material box conveying mechanism.

14. The cell coating apparatus as described in claim 1, characterized in that, The cell alignment mechanism also includes a base plate. The fourth and fifth regularizing parts are arranged in pairs on the base plate, with the fourth regularizing part located on the first side of the conveyor belt and the fifth regularizing part located on the second side of the conveyor belt.

15. The cell coating apparatus as described in claim 14, characterized in that: The fourth straightening section includes a first straightening wheel set and a second straightening wheel set arranged along the conveying direction of the conveyor belt; The fifth straightening section includes a third straightening wheel set and a fourth straightening wheel set arranged along the conveying direction of the conveyor belt; When the fourth and fifth aligning sections approach each other, the first and third aligning wheel sets align one battery cell on the conveyor belt, and the second and fourth aligning wheel sets align another battery cell on the conveyor belt. Each of the first, second, third, and fourth aligning wheel sets includes at least two aligning wheels arranged side by side along the conveying direction of the conveyor belt, and the installation position of each aligning wheel can be adjusted independently.

16. The cell coating apparatus as described in claim 1, characterized in that, Driven by the fifth lifting mechanism, the third gripper first descends and picks up a battery cell, then rises back to its original position. The fifth translation mechanism then drives the third and fourth grippers to translate synchronously in the direction parallel to the battery cell conveying direction. Then, driven by the sixth lifting mechanism, the fourth gripper descends and picks up another battery cell.

17. The cell coating apparatus as described in claim 1, characterized in that, The first and second gluing mechanisms are screen printing gluing mechanisms, and the mesh arrangement of the screen printing stencil in the screen printing gluing mechanism is consistent with the preset glue dot arrangement on the battery cell to be printed.

18. A solar cell coating device, characterized in that, It includes two cell coating devices as described in any one of claims 1-17, the two cell coating devices being arranged in parallel.

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