CN219519377U - Coating gasket and coating device - Google Patents
Coating gasket and coating device Download PDFInfo
- Publication number
- CN219519377U CN219519377U CN202320109502.2U CN202320109502U CN219519377U CN 219519377 U CN219519377 U CN 219519377U CN 202320109502 U CN202320109502 U CN 202320109502U CN 219519377 U CN219519377 U CN 219519377U
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- China
- Prior art keywords
- coating
- gasket
- utility
- model
- outer protruding
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- 239000011248 coating agent Substances 0.000 title claims abstract description 72
- 238000000576 coating method Methods 0.000 title claims abstract description 72
- 239000007788 liquid Substances 0.000 abstract description 11
- 239000011888 foil Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 239000000872 buffer Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 17
- 239000002002 slurry Substances 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Coating Apparatus (AREA)
Abstract
The utility model relates to the field of power batteries, in particular to a coating gasket and a coating device, wherein the coating gasket comprises a long side, two ends of the long side are respectively connected with side edges, at least two vertical parts are arranged in the middle of the long side at intervals, the vertical parts divide the coating gasket into at least three diversion trenches, the free ends of all the vertical parts are provided with outer protruding parts, and the outer protruding parts protrude towards the diversion trenches. The coating gasket of the present utility model is applicable to a plurality of coating apparatuses in which the gasket is divided into a plurality of guide grooves by a plurality of standing parts. All be provided with the convex outer protruding portion of guiding gutter direction on all stands, when the coating operation, outer protruding portion buffers the thick liquids of process, when making thick liquids pass through this structure, produces the vortex state, makes the ejection of compact evenly scribble on the foil, reduces marginal thinning district surface tension, solves the uneven problem of thick liquids flow in the gasket.
Description
Technical Field
The utility model relates to the field of power batteries, in particular to a coating gasket and a coating device.
Background
Along with the rapid development of new energy industry, new energy automobiles become a main trend of future development, the demands of power batteries are increased increasingly, the improvement of production efficiency becomes a primary goal of production of enterprises, and the improvement of efficiency can be started from two aspects of a process method and a device structure.
The uniformity of the surface density of the cathode coating is a precondition of stable battery performance, and the surface density of the cathode coating is difficult to control at present. Most of the existing coating gaskets are single-frame gaskets or double-frame gaskets, and the surface density of the middle area of the coating pole piece material area can only be improved, but the surface density improvement of the two sides of the coating pole piece material area is not satisfactory, so that the improvement of the surface density uniformity of the two sides of the cathode coating pole piece material area is an urgent problem at present.
Disclosure of Invention
The utility model aims to improve the uniformity of density of two side surfaces of a material region of a cathode coated pole piece, and provides a coated gasket and a coated device.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a coating gasket, includes the long limit, the both ends on long limit are respectively connected with the side the middle part interval on long limit is provided with two at least vertical parts, the vertical part is divided into at least three guiding gutter with the coating gasket, all the free end of vertical part is provided with outer protruding portion, outer protruding portion is protruding to guiding gutter direction.
The gasket is a coating gasket, and the gasket is divided into a plurality of diversion trenches through a plurality of vertical parts, so that the coating gasket is applied to a plurality of coating devices. All be provided with the convex outer protruding portion of guiding gutter direction on all stands, when the coating operation, outer protruding portion buffers the thick liquids of process, when making thick liquids pass through this structure, produces the vortex state, and because outer protruding portion sets up the free end at every stand, makes the ejection of compact evenly scribble on the foil, reduces marginal thinning district surface tension, improvement negative pole coating pole piece material district both sides face density homogeneity that can be fine, makes the thick liquids export more even, solves the uneven problem of thick liquids flow in the gasket.
As a preferable mode of the utility model, the two sides of the vertical part are provided with external protruding parts.
The outer protruding parts are arranged on the two sides of all the vertical parts, so that turbulent flow can be generated to slurry in a plurality of diversion trenches of the coating gasket, and the uniformity of the surface density of the two sides of the material area of the cathode coating pole piece is improved better.
Preferably, the outer protrusion occupies less than one third of the length of the upright portion.
As a preferable mode of the present utility model, the outer protrusion has a wavy protruding structure.
As a preferable mode of the present utility model, the number of the protrusions of the outer protrusion is at least three.
As a preferable mode of the present utility model, the size and shape of each protrusion of the outer protrusion are the same.
The proportion that the outer protruding portion accounts for the length of the vertical portion is smaller than one third of the length of the vertical portion, the outer protruding portion is of a wavy protruding structure, and preferably at least three protruding portions are arranged, the size and the shape of each protruding portion are the same, and the turbulence effect can be better generated on slurry flowing through the protruding portion.
As a preferred embodiment of the present utility model, the length of the standing portion is smaller than the length of the side edge.
The length of the vertical part is smaller than that of the side edge, so that the phenomenon of low-lying caused by too little coating quantity in the middle position due to too long length of the vertical part can be avoided.
In a preferred embodiment of the present utility model, the side edge and the standing portion are perpendicular to the long edge.
In a preferred embodiment of the present utility model, the side edge, the standing portion, the long edge, and the outward protruding portion are integrally formed.
The side, the vertical part, the long side and the outer protruding part are integrally formed, so that the whole coating gasket is more convenient to manufacture, is suitable for mass production, and saves cost.
A coating apparatus comprising an upper die, a lower die, and a coating gasket of the present utility model disposed between the upper die and the lower die.
By using the coating device provided by the utility model, the coating gasket is adopted, so that the discharged material can be uniformly coated on the foil, the surface tension of the edge thinning area is reduced, the density uniformity of the two sides of the material area of the cathode coating pole piece can be well improved, and the slurry outlet is more uniform.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. the gasket is a coating gasket, and the gasket is divided into a plurality of diversion trenches through a plurality of vertical parts, so that the coating gasket is applied to a plurality of coating devices. All be provided with the convex outer protruding portion of guiding gutter direction on all stands, when the coating operation, outer protruding portion buffers the thick liquids of process, when making thick liquids pass through this structure, produces the vortex state, and because outer protruding portion sets up the free end at every stand, makes the ejection of compact evenly scribble on the foil, reduces marginal thinning district surface tension, improvement negative pole coating pole piece material district both sides face density homogeneity that can be fine, makes the thick liquids export more even, solves the uneven problem of thick liquids flow in the gasket.
2. The coating gasket provided by the utility model is provided with the outer protruding parts at the two sides of all the vertical parts, so that turbulent flow can be generated to slurry flowing in a plurality of diversion trenches of the coating gasket, and the uniformity of the surface density at the two sides of a material region of the cathode coating pole piece is better improved; the outer protruding part is arranged to occupy less than one third of the length of the vertical part, the outer protruding part is arranged to be of a wavy protruding structure, and preferably at least three protruding parts are arranged, and the size and the shape of each protruding part are the same, so that a better turbulence effect can be generated on slurry flowing through the protruding part; the length of the vertical part is smaller than that of the side edge, so that the phenomenon of low-lying caused by too little coating quantity in the middle position due to too long length of the vertical part can be avoided.
3. The side, the vertical part, the long side and the outward protruding part of the coating gasket are integrally formed, so that the whole coating gasket is more convenient to manufacture, is suitable for mass production, and saves more cost.
4. The utility model also provides a coating device, wherein the coating gasket provided by the utility model is adopted in the coating device, so that the discharged material can be uniformly coated on the foil, the surface tension of an edge thinning area is reduced, the density uniformity of two side surfaces of a material area of the cathode coating pole piece can be well improved, and the slurry outlet is more uniform.
Drawings
FIG. 1 is a schematic illustration of the structure of a coated gasket of the present utility model;
fig. 2 is an enlarged view of a portion a in fig. 1;
fig. 3 is a schematic structural view of the coating device of the present utility model.
Reference numerals in the drawings: 1-coating gasket, 11-long side, 12-side, 13-vertical part, 14-guiding groove, 15-outward protruding part, 2-upper die head and 3-lower die head.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in fig. 1-3, a coating pad 1 comprises a long side 11, two ends of the long side 11 are respectively connected with a side 12, the length of the long side 11 is longer than that of the side 12, the long side 11 and the two sides 12 jointly enclose an outer frame of the coating pad 1, and an opening of the coating pad 1 is formed between the two sides 12 for the slurry to flow out. Two vertical parts 13 are arranged at intervals in the middle of the long side 11, the two vertical parts 13 are arranged in parallel and extend towards the opening direction of the coating gasket 1, the two vertical parts 13 divide the coating gasket 1 into three diversion trenches 14, and the coating gasket 1 in the embodiment is three coating gaskets. It will be appreciated that in other embodiments, not limited to three coated shims, three, four or more uprights 13 may be provided for four, five or more coated shims.
At the free ends of all the uprights 13, there are provided external protrusions 15, the external protrusions 15 being intended to create turbulence to the slurry flowing through the channels. In the present embodiment, the outer protrusions 15 are disposed at both sides of each upright portion 13, and the outer protrusions 15 protrude toward the diversion trenches 14, i.e., as shown in fig. 1, the outer protrusions 15 at both sides of the upright portion 13 at the left side in fig. 1 protrude toward the diversion trenches 14 at both sides thereof, respectively; similarly, the outer protrusions 15 on the two sides of the vertical portion 13 on the right side are respectively protruded towards the diversion trenches 14 on the two sides of the vertical portion, so that turbulence can be generated on the slurry flowing into the three diversion trenches 14 of the coated gasket 1, and the uniformity of the surface density on the two sides of the material area of the negative electrode coated pole piece is better improved.
When the coating, the outer protruding part 15 buffers the passing slurry, so that the slurry is in a turbulent flow state when passing through the structure, the flow speed of the slurry flowing through the coating gasket 1 is reduced, the outer protruding part 15 is arranged at the free end of each vertical part 13, so that the discharge can be uniformly coated on the foil, the surface tension of an edge thinning area is reduced, the density uniformity of two side surfaces of a material area of the cathode coating pole piece is well improved, the slurry outlet is more uniform, and the problem of uneven slurry flow in the gasket is solved.
In this embodiment, the length of the stand portion 13 is smaller than that of the side edge 12, so that the phenomenon of low-lying caused by too small amount of coating material in the middle position due to too long stand portion 13 length can be avoided. The side edges 12 and the vertical parts 13 are perpendicular to the long edge 11; the side 12, the vertical part 13, the long side 11 and the outward protruding part 15 are integrally formed, so that the whole coating gasket 1 is more convenient to manufacture, is suitable for mass production, and saves cost.
Example 2
On the basis of embodiment 1, the proportion of the outer protrusion 15 accounting for the length of the vertical part 13 is preferably smaller than one third of the length of the vertical part 13, the outer protrusion 15 is preferably provided with a structure with wavy protrusions at the edges, and the protrusions are preferably three, and the size and the shape of each protrusion are the same, so that turbulence can be better generated on the flowing slurry.
The outer protrusion 15 may be provided in a fan-shaped or rectangular structure, but is not limited to this, and may be provided in other shapes, and the shape of the outer protrusion 15 may be ensured to have a turbulence effect.
Example 3
The present utility model also provides a coating apparatus comprising an upper die 2, a lower die 3, and a coating gasket 1 disposed between the upper die 2 and the lower die 3, wherein the coating gasket 1 uses the coating gasket of example 1 or example 2. The discharging material can be uniformly coated on the foil, the surface tension of the edge thinning area is reduced, the density uniformity of two sides of the material area of the cathode coated pole piece can be well improved, and the slurry outlet is more uniform.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The utility model provides a coating gasket (1), its characterized in that includes long limit (11), the both ends of long limit (11) are connected with side (12) respectively the middle part interval of long limit (11) is provided with two at least vertical parts (13), vertical parts (13) divide into at least three guiding gutter (14) with the coating gasket, all the free end of vertical parts (13) is provided with outer protruding portion (15), outer protruding portion (15) are to guiding gutter direction protrusion.
2. A coating gasket (1) according to claim 1, characterized in that the two sides of the standing part (13) are provided with external protrusions (15).
3. A coated gasket (1) according to claim 1, characterized in that the outer protrusion (15) occupies less than one third of the length of the stand (13).
4. A coated gasket (1) according to claim 1, characterized in that the outer protrusions (15) are of a wave-shaped protruding structure.
5. A coated gasket (1) according to claim 3, characterized in that the protrusions of the outer protrusions (15) are at least three.
6. A coated gasket (1) according to claim 3, characterized in that each projection of the outer projection (15) is of the same size, shape.
7. A coated gasket (1) according to claim 1, characterized in that the length of the standing part (13) is smaller than the length of the side edges (12).
8. A coated gasket (1) according to claim 1, characterized in that the side edges (12), the uprights (13) are perpendicular to the long edges (11).
9. A coated gasket (1) according to any of claims 1-8, wherein the side edges (12), the uprights (13), the long edges (11), the outer protrusions (15) are integrally formed.
10. A coating device, characterized by comprising an upper die (2), a lower die (3) and a coated gasket (1) according to any of claims 1-9, said coated gasket (1) being arranged between said upper die (2) and said lower die (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320109502.2U CN219519377U (en) | 2023-01-16 | 2023-01-16 | Coating gasket and coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320109502.2U CN219519377U (en) | 2023-01-16 | 2023-01-16 | Coating gasket and coating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219519377U true CN219519377U (en) | 2023-08-15 |
Family
ID=87629297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320109502.2U Active CN219519377U (en) | 2023-01-16 | 2023-01-16 | Coating gasket and coating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219519377U (en) |
-
2023
- 2023-01-16 CN CN202320109502.2U patent/CN219519377U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |