Clamp mechanism for battery piece coating equipment

Abstract

The utility model relates to the field of battery piece work fixtures, and discloses a fixture mechanism for battery piece coating equipment, which comprises a fixture main plate, a guide component, a lifting pressure plate and a conductive component. And a plurality of placing grooves are formed in the clamp main plate. The lifting pressing plate is arranged above the side edge of the containing groove, and a conductive elastic piece is arranged on the lifting pressing plate. The lifting pressing plate is arranged on the clamp main plate in an up-down moving mode through a plurality of guide assemblies. The conductive assembly is electrically connected with the clamp main plate and the lifting pressing plate, and the conductive assembly is communicated with the cathode current and guides the cathode current to the clamp main plate and the lifting pressing plate. The battery piece is placed on the containing groove, after the lifting pressing plate is pressed downwards, the battery piece is tightly pressed on the containing groove through the conductive elastic pieces, and grid lines on the battery piece are conducted with cathode current of the conductive elastic pieces and cathode current of the clamp main board. According to the utility model, a clamp-type horizontal coating mode is adopted, and a pinch point is used as a catalyst, so that the production yield of a battery piece is improved, the maintenance cost is reduced, and the UPTIME of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of battery sheet fixtures, in particular to a fixture mechanism used for battery sheet coating equipment. Background Art

[0002] At present, the industry prefers horizontal structure to realize metal grid formation of battery cells: generally, multiple rows of battery cells are directly flowed into the roller conveyor mechanism, and after passing through the set process environment in turn, the required conductive film layer is generated on the surface of the battery cell; in this way, the battery cell is prone to a series of problems such as broken pieces, deviation, stacking, and carding during the transmission process; at the same time, related equipment manufacturers mostly use brushes or roller brushes as the coal medium between the negative electrode of the power supply and the grid electrode of the battery cell. With the above scheme, on the one hand, as the grid line of the battery cell is generated, the brush or roller brush material will be deposited with corresponding metal particles synchronously, thereby scratching the subsequent grid line film layer of the battery cell, which is not conducive to the mass production of the battery cell; on the other hand, the brush or roller brush mechanism, as an in-line device, needs to be shut down, replaced and maintained periodically, which brings many hidden dangers to the continuous production of the production line; at the same time, the brush or roller brush mechanism is a floating contact, and its tip characteristics will change all the time as the production progresses, which will cause the contact to be occasional, which brings great challenges to the quality of battery cell coating. Therefore, the industry is in urgent need of finding a solution that can solve existing problems to ensure product production efficiency and quality. Utility Model Content

[0003] The purpose of the utility model is to solve the problems of the prior art and provide a clamp mechanism for battery cell coating equipment, which improves the production yield of battery cells, reduces maintenance costs, and improves the UPTIME of equipment, thereby promoting the healthy development of the industry.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a clamp mechanism for a cell coating device, which includes a clamp mainboard, a guide assembly, a lifting and lowering plate, and a conductive assembly. The clamp mainboard is provided with a plurality of placement slots for placing the cell to be coated. The lifting and lowering plate is arranged above the side of the placement slot, and a conductive spring is arranged on the lifting and lowering plate; a plurality of guide assemblies pass through the lifting and lowering plate and are fixed on the clamp mainboard, so that the lifting and lowering plate can move up and down along the guide assembly; the conductive assembly is electrically connected to the clamp mainboard and the lifting and lowering plate, respectively, and the conductive assembly is connected to the cathode current, and guides the cathode current to the clamp mainboard and the lifting and lowering plate; the cell is placed on the placement slot, and when the lifting and lowering plate is pressed down, the conductive spring presses the cell tightly against the placement slot, and the grid line on the cell is connected to the conductive spring and the cathode current of the clamp mainboard.

[0006] Furthermore, the guide assembly includes a lifting guide post, a spring and a spring limiting ring. The lifting guide post is fixed on the clamp main board, the spring limiting ring is arranged at the upper end of the lifting guide post, the spring passes through the lifting guide post and is arranged between the clamp main board and the spring limiting ring; the lifting pressure plate is arranged between the spring and the clamp main board.

[0007] Furthermore, the conductive component includes a conductive brush, a conductive block and a conductive wire; the conductive brush is connected to the cathode current, and the conductive brush is fixed on the conductive block, the conductive block is fixed on the fixture main board, one end of the conductive wire is electrically connected to the fixture main board, and the other end is electrically connected to the lifting and lowering plate.

[0008] Furthermore, the placement groove is hollow and is provided with downwardly inclined slopes on all sides, and a plurality of contacts for supporting the battery cells are provided at the bottom of all sides of the placement groove.

[0009] Furthermore, the placement groove is provided with a plurality of notches, so that when the battery cell is placed on the placement groove for coating, the chemical solution on the upper surface of the battery cell can flow out through the notches.

[0010] Furthermore, the conductive spring sheet extends in the direction of the placement slot, and a top opening hole matching with the coating equipment is provided on the fixture main board directly below the lifting and pressing plate, which is used to lift the lifting and pressing plate.

[0011] Furthermore, except for the conductive components, conductive springs, and the contact area between the bottom of the battery cell and the placement groove, the clamping mechanism is subjected to surface insulation treatment or made of non-metallic insulating materials.

[0012] Furthermore, the contact point adopts conductive and corrosion-resistant steel balls.

[0013] Furthermore, the placement slots are arranged in an n*m layout, where n / m is an integer from 1 to 30.

[0014] Furthermore, the lifting and pressing plates are arranged on two opposite sides of the placement groove.

[0015] The benefits of the utility model are:

[0016] The utility model adopts a clamp-type horizontal coating method to arrange the battery cells in the placement slots of the clamp according to the set rows, which can solve a series of problems such as breakage, deviation, overlap, and jamming of multiple rows of battery cells during transmission; at the same time, the mechanism adopts clamping points as contacts to ensure stable conduction between the power cathode and the battery cell grid during coating; and, since the clamp is only a carrier for the battery cells and does not belong to the main body of the coating equipment, the maintenance of the clamping points is carried out off-line, thereby ensuring the continuous batch production of the equipment; the use of this clamp mechanism, on the one hand, improves the production yield of the battery cells and reduces the maintenance cost; since manual participation in the production process is reduced, the UPTIME of the equipment is improved; the fixed opening design of the clamp mechanism helps to improve the degree of automation of the production line, thereby promoting the healthy development of the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of this embodiment.

[0018] Figure 2 yes Figure 1 A partial enlarged view of point C in the middle.

[0019] Figure 3 yes Figure 1 A partial enlarged view of point D in the middle.

[0020] Figure 4 It is a partial top view of the clamp in this embodiment.

[0021] Figure 5 yes Figure 4 Front view in direction B.

[0022] Figure 6 yes Figure 4 Front view in direction A.

[0023] Main component symbols:

[0024] 1. fixture main board, 11. placement slot, 12. contact point, 13. notch, 14. top opening;

[0025] 2. Lifting and lowering plate, 21. Conductive spring;

[0026] 3. guide assembly, 31. lifting guide column, 32. spring, 33. spring limiting ring;

[0027] 4. Conductive component, 41. Conductive brush, 42. Conductive block, 43. Conductive wire;

[0028] 5. Battery cells. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 6 As shown, the utility model discloses a clamp mechanism for a cell film coating device, which includes a clamp main board 1, a guide component 3, a lifting and pressing plate 2 and a conductive component 4.

[0031] Among them, Figure 1 As shown, the fixture main board 1 is provided with a plurality of placement slots 11 for placing the battery cells 5 to be coated. The placement slots 11 are arranged in an n*m layout, where n / m is an integer from 1 to 30.

[0032] like Figure 2 As shown, the placement groove 11 is hollow and has downwardly inclined slopes around it, which is convenient for placing the battery cell 5 in the groove. A number of contacts 12 for holding the battery cell 5 are arranged at the bottom around the placement groove 11. The contacts 12 preferably use conductive and corrosion-resistant steel balls, and other shapes of contacts can also be used to make them conductive while reducing the poor appearance caused by the indentation of the contacts 12. In order to ensure that the liquid on the upper surface of the battery cell 5 can flow out smoothly when the battery cell 5 is placed on the placement groove 11 for coating, the placement groove 11 is provided with a number of notches 13 for the outflow of the liquid, and the notches 13 are preferably arranged at the four corners of the placement groove 11.

[0033] The lifting and lowering plate 2 is arranged above the two opposite sides of the placement slot 11, and a conductive spring sheet 21 is arranged on the lifting and lowering plate 2. The conductive spring sheet 21 extends in the direction of the placement slot 11. A top opening 14 matching with the coating equipment is arranged on the fixture main board 1 just below the lifting and lowering plate 2. When it is connected with the loading and unloading automation, the automatic lifting column passes through the top opening 14 to lift the lifting and lowering plate 2.

[0034] like Figure 5 , Figure 6 As shown, several guide assemblies 3 pass through the lifting and pressing plates 2 and are fixed on the fixture main board 1, so that the lifting and pressing plates 2 can move up and down along the guide assemblies 3. Specifically, the guide assemblies 3 include lifting guide posts 31, springs 32 and spring limiting rings 33. The lifting guide posts 31 are fixed on the fixture main board 1, the spring limiting rings 33 are arranged at the upper ends of the lifting guide posts 31, and the springs 32 pass through the lifting guide posts 31 and are arranged between the fixture main board 1 and the spring limiting rings 33 to ensure that the springs 32 run within a certain space. The lifting and pressing plates 2 are arranged between the springs 32 and the fixture main board 1. Under the guidance and limitation of the lifting guide posts 31, the contacts on the conductive spring sheets 21 contact and press the grid lines on the upper surface of the battery cell 5 under the preload force of the springs 32, and are turned on at the cathode of the power supply.

[0035] like Figure 3 , Figure 6 As shown, the conductive component 4 is electrically connected to the fixture main board 1 and the lifting and lowering plate 2 respectively, and the conductive component 4 is connected to the cathode current to guide the cathode current to the fixture main board 1 and the lifting and lowering plate 2. Specifically, the conductive component 4 includes a conductive brush 41, a conductive block 42 and a conductive wire 43. The conductive brush 41 is connected to the cathode current, and the conductive brush 41 is fixed on the conductive block 42, and the conductive block 42 is fixed on the fixture main board 1, and is used to conduct the cathode of the power supply with the fixture main board 1. One end of the conductive wire 43 is electrically connected to the fixture main board 1, and the other end is electrically connected to the lifting and lowering plate 2, and is used to conduct the cathode of the power supply with the lifting and lowering plate 2. One conductive brush 41 can be set for each set of fixtures, and multiple ones can also be set according to process requirements.

[0036] When the battery cell 5 is placed on the placement groove 11, when the lifting and pressing plate 2 is pressed down, the conductive spring sheet 21 presses the battery cell 5 against the placement groove 11, the gate line on the upper surface of the battery cell 5 is connected to the contact 12 of the conductive spring sheet 21, and the lower surface of the battery cell 5 is connected to the contact 12 of the placement groove 11, so that the gate line on the battery cell 5 is connected to the cathode current.

[0037] In order to minimize the power loss during production and make the current distribution more balanced, the clamp mechanism except the conductive component 4, the conductive spring 21, the bottom of the battery cell 5 and the contact area of ​​the placement groove 11 is surface insulated or made of non-metallic insulating material with conductive wires 43 inside.

[0038] The conductive component 4, the lifting and lowering plate 2 and the fixture main board 1 can be fastened with screws according to production requirements, or can be fixed by welding or other methods.

[0039] The number and layout of the contacts 12 and conductive springs 21 provided on each fixture mechanism for each cell 5 are adjusted according to the actual requirements of the process to maximize the coating quality. In this embodiment, 8 contacts 12 and 8 conductive springs 21 are provided on each cell 5.

[0040] The spring limiting ring 33 and the lifting guide column 31 can be locked by screw threads, or fixed by screws or other methods to ensure that the clamp assembly runs stably during use.

[0041] The placement slot 11 can be designed to have corresponding size and shape according to production requirements, and can be used to carry full sheets of various sizes and specifications, and can also carry half sheets of various sizes and specifications.

[0042] This embodiment is mainly used in the clamp-type horizontal coating implementation method. The mechanism can carry more battery cells 5 and run in the coating equipment at a higher transmission speed, thereby raising the production capacity to a new level. The mechanism conforms to the industry trend, and while meeting the functions of carrying battery cells 5 and connecting the power cathode, it makes the conduction current more uniform, and the generated battery cell 5 grid line contacts 12 are more beautiful, which can greatly enhance the market competitiveness of the equipment.

[0043] In summary, the utility model adopts a clamp-type horizontal coating method and uses the clamping point as a catalyst, which improves the production yield of battery cells, reduces maintenance costs, and improves the UPTIME of equipment, thereby promoting the healthy development of the industry.

[0044] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be covered within the protection scope of the present invention.

Claims

1. A clamping mechanism for a cell coating device, characterized in that: It includes a fixture mainboard, a guide component, a lifting and pressing plate and a conductive component; the fixture mainboard is provided with a plurality of placement slots for placing the battery sheets to be coated; the lifting and pressing plate is arranged above the side of the placement slot, and a conductive spring is arranged on the lifting and pressing plate; a plurality of guide components pass through the lifting and pressing plate and are fixed on the fixture mainboard, so that the lifting and pressing plate can move up and down along the guide components; the conductive component is electrically connected to the fixture mainboard and the lifting and pressing plate respectively, and the conductive component is connected to the cathode current to guide the cathode current to the fixture mainboard and the lifting and pressing plate; The battery cell is placed on the placement groove. When the lifting and lowering plate is pressed down, the conductive spring sheet presses the battery cell tightly on the placement groove, and the grid line on the battery cell is connected to the cathode current of the conductive spring sheet and the clamp main board.

2. The clamping mechanism for solar cell coating equipment according to claim 1, characterized in that: The guide assembly includes a lifting guide column, a spring and a spring limiting ring; the lifting guide column is fixed on the clamp main board, the spring limiting ring is arranged at the upper end of the lifting guide column, the spring passes through the lifting guide column and is arranged between the clamp main board and the spring limiting ring; the lifting pressure plate is arranged between the spring and the clamp main board.

3. The clamping mechanism for solar cell coating equipment according to claim 1, characterized in that: The conductive component includes a conductive brush, a conductive block and a conductive wire; the conductive brush is connected to the cathode current, and the conductive brush is fixed on the conductive block, the conductive block is fixed on the fixture main board, one end of the conductive wire is electrically connected to the fixture main board, and the other end is electrically connected to the lifting and lowering plate.

4. The clamping mechanism for solar cell coating equipment according to claim 1, characterized in that: The placement groove is hollow and is provided with downwardly inclined slopes on all sides. A plurality of contacts for supporting the battery sheet are provided at the bottom of all sides of the placement groove.

5. The clamping mechanism for solar cell coating equipment according to claim 4 is characterized in that: The placement groove is provided with a plurality of notches, so that when the battery cell is placed on the placement groove for coating, the chemical solution on the upper surface of the battery cell can flow out through the notches.

6. The clamping mechanism for solar cell coating equipment according to claim 1, characterized in that: The conductive spring sheet extends toward the placement slot, and a top opening matched with the coating device is provided on the fixture main board directly below the lifting and pressing plate, which is used to lift the lifting and pressing plate.

7. The clamping mechanism for solar cell coating equipment according to claim 1, characterized in that: Except for the conductive components, conductive springs, and the contact area between the bottom of the battery cell and the placement groove, the clamping mechanism is surface-insulated or made of non-metallic insulating materials.

8. The clamping mechanism for solar cell coating equipment according to claim 4, characterized in that: The contact point adopts conductive and corrosion-resistant steel ball.

9. The clamping mechanism for solar cell coating equipment according to claim 1, characterized in that: The placement slots are arranged in an n*m layout, where n / m is an integer from 1 to 30.

10. The clamping mechanism for solar cell coating equipment according to claim 1, characterized in that: The lifting and pressing plates are arranged on two opposite sides of the placement groove.

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