CN220474751U - Power battery injection molding top cover capable of preventing polar column from loosening - Google Patents
Power battery injection molding top cover capable of preventing polar column from loosening Download PDFInfo
- Publication number
- CN220474751U CN220474751U CN202322120729.XU CN202322120729U CN220474751U CN 220474751 U CN220474751 U CN 220474751U CN 202322120729 U CN202322120729 U CN 202322120729U CN 220474751 U CN220474751 U CN 220474751U
- Authority
- CN
- China
- Prior art keywords
- boss
- column
- top cover
- plastic
- negative pole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001746 injection moulding Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims 3
- 239000007924 injection Substances 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a power battery injection molding top cover capable of preventing a pole from loosening, which comprises a top cover plate and a lower plastic bracket, wherein the two ends of the top cover plate are respectively provided with a first boss, the two ends of the lower plastic bracket are respectively provided with a second boss, the top of the second boss is embedded into a first groove at the bottom of the first boss, through holes are respectively formed in the middle of the first boss and the second boss, and the first boss and the second boss at the two ends are respectively used for arranging a negative pole and a positive pole; the negative pole post and the positive pole post are composed of a bottom plate and a column body arranged at the top of the bottom plate, and a concave ring which is concave inwards is arranged on the column body. The utility model simplifies the assembly process flow of the new energy battery cover plate, reduces the assembly process difficulty, reduces the dosage of key materials, is beneficial to improving the assembly efficiency of the top cover, reducing the production cost and improving the safety of the new energy battery while ensuring the structural reliability.
Description
Technical Field
The utility model relates to the technical field of greenhouse planting, in particular to a power battery injection molding top cover capable of preventing polar posts from loosening.
Background
At present, a traditional cover plate structure is commonly adopted for new energy batteries, so that the material utilization efficiency is low, and the material cost is high; the structure is thick and heavy, and the space utilization rate of the new energy battery is reduced, so that the energy density of the new energy battery is reduced. The traditional cover plate structure pole adopts a copper-aluminum friction welding technology, the cover plate and the pole are fixed by virtue of in-mold injection molding of PPS materials, the risks of fracture of a copper-aluminum joint surface of the pole and falling off of the pole and the cover plate exist, and the safety of the new energy battery in the use process is reduced.
Disclosure of Invention
In order to solve the problems of the conventional cover plate structure, the utility model provides the injection-molded top cover for the power battery, which is used for preventing the polar column from loosening.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a prevent not hard up power battery top cap of post, includes top cap piece and lower plastic support, top cap piece both ends all are provided with first boss, and lower plastic support both ends all are provided with the second boss, and the first recess of first boss bottom is embedded at second boss top, and all are provided with the through-hole in the middle of first boss and the second boss, and first boss and the second boss at both ends are used for setting up negative pole post and positive pole post respectively; the negative pole column and the positive pole column are composed of a bottom plate and a column body arranged at the top of the bottom plate, and the column body is provided with a concave ring which is concave inwards; the bottom plates of the negative pole column and the positive pole column are respectively embedded into third grooves at the bottoms of the second bosses at two ends, the column body penetrates through the through hole of the first boss, the top surface of the column body is higher than the top surface of the first boss, the negative pole column is buckled with the first boss through negative pole insulating upper plastic, and the positive pole column is buckled with the first boss through positive pole conductive upper plastic for preventing loosening; sealing rings are arranged between the bottom plates of the negative pole column and the positive pole column and the second groove at the bottom of the first boss, so that the tightness is ensured; and the middle parts of the top cover sheet and the lower plastic bracket are provided with explosion-proof valve structures.
Preferably, a circle of back-off holes are uniformly distributed on the top of the first boss along the circumferential direction, the back-off holes are in a shape with a small upper part and a big lower part, a circle of clamping grooves are uniformly distributed on the edge of the through hole on the first boss along the circumferential direction, a through hole is also formed in the middle of the plastic on the negative electrode insulation and the plastic on the positive electrode conduction and is used for connecting the columns of the negative electrode column and the positive electrode column, and a convex ring which is convex is arranged in the through hole and is used for clamping a concave ring on the column; the bottom of plastic on the negative electrode insulation and the bottom of plastic on the positive electrode conduction are provided with a circle of back-off column and clamping blocks along the circumferential direction, and the back-off column and the clamping blocks are respectively connected with the back-off holes and the clamping grooves on the top of the first boss.
Preferably, the top of the lower plastic support is provided with a plurality of positioning protrusions, and the bottom of the top cover sheet is provided with a plurality of corresponding positioning holes for positioning when the top cover sheet and the lower plastic support are installed.
Preferably, the bottom plate and the column body of the negative pole column are respectively made of copper materials and aluminum materials, and are manufactured through a composite plate stamping process.
Compared with the prior art, the utility model has the beneficial effects that: the utility model simplifies the assembly process flow of the new energy battery cover plate, reduces the assembly process difficulty, reduces the dosage of key materials, is beneficial to improving the assembly efficiency of the top cover, reducing the production cost and improving the safety of the new energy battery while ensuring the structural reliability.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present utility model;
FIG. 3 is a schematic diagram of an exploded structure of an embodiment of the present utility model;
FIG. 4 is a schematic view of the top of a first boss according to an embodiment of the present utility model;
FIG. 5 is a schematic view of the back side of the top cover sheet according to the embodiment of the present utility model;
FIG. 6 is a schematic view of a back side perspective structure of a plastic bracket according to an embodiment of the present utility model;
FIG. 7 is a schematic view showing a negative electrode insulation plastic-on-plastic reverse side three-dimensional structure according to an embodiment of the present utility model;
fig. 8 is an enlarged schematic view of a in fig. 2.
In the figure: 1. the top cover plate comprises a top cover plate body, 101, a first boss, 102, clamping grooves, 103, a back-off hole, 104, a first groove, 105, a second groove, 106, a positioning hole, 2, a lower plastic support, 201, a second boss, 202, a positioning protrusion, 203, a third groove, 3, a negative pole column, 301, a bottom plate, 302, a column body, 303, a concave ring, 4, negative pole insulation plastic, 401, a back-off column, 402, a clamping block, 403, a convex ring, 5, a positive pole column, 6, positive pole conduction plastic, 7, an explosion-proof valve structure, 8 and a sealing ring.
Description of the embodiments
In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
As shown in fig. 1 to 8, the embodiment of the utility model comprises a top cover sheet 1 and a lower plastic support 2, wherein both ends of the top cover sheet 1 are provided with a first boss 101, both ends of the lower plastic support 2 are provided with a second boss 201, the top of the second boss 201 is embedded into a first groove 104 at the bottom of the first boss 101, the middle of the first boss 101 and the middle of the second boss 201 are provided with through holes, and the first boss 101 and the second boss 201 at both ends are respectively used for arranging a negative pole column 3 and a positive pole column 5; the negative pole column 3 and the positive pole column 5 are both composed of a bottom plate 301 and a column body 302 arranged at the top of the bottom plate 301, and a concave ring 303 which is concave is arranged on the column body 302; the bottom plates 301 of the negative pole column 3 and the positive pole column 5 are respectively embedded into the third grooves 203 at the bottoms of the second bosses 201 at the two ends, the column body 302 penetrates through the through hole of the first boss 101, the top surface of the column body is higher than that of the first boss 101, the negative pole column 3 is buckled with the first boss 101 through negative pole insulation upper plastic 4, and the positive pole column 5 is buckled with the first boss 101 through positive pole conductive upper plastic 6 for preventing loosening; sealing rings are arranged between the bottom plates 301 of the negative pole column 3 and the positive pole column 5 and the second groove 105 at the bottom of the first boss 101, so that the tightness is ensured; the middle parts of the top cover plate 1 and the lower plastic bracket 2 are provided with an explosion-proof valve structure 7.
Preferably, a circle of back-off holes 103 are uniformly distributed on the top of the first boss 101 along the circumferential direction, the back-off holes 103 are in a shape with a small upper part and a big lower part, a circle of clamping grooves 102 are uniformly distributed on the edge of a through hole on the first boss 101 along the circumferential direction, a through hole is also formed in the middle of the negative electrode insulating upper plastic 4 and the positive electrode conductive upper plastic 6 and is used for connecting a column body 302 of the negative electrode column 3 and a column body 5, and a convex ring 403 which is convex is arranged in the through hole and is used for clamping a concave ring 303 on the column body 302; the bottoms of the negative electrode insulating upper plastic 4 and the positive electrode conductive upper plastic 6 are provided with a circle of back-off posts 401 and clamping blocks 402 along the circumferential direction, and are respectively connected with the back-off holes 103 and the clamping grooves 102 on the top of the first boss 101; four positioning protrusions 202 are arranged on the top of the lower plastic support 2, and four corresponding positioning holes 106 are formed in the bottom of the top cover sheet 1 and used for positioning when the top cover sheet 1 and the lower plastic support 2 are installed.
After the second boss 201 of the lower plastic support 2 is clamped into the first groove 104 at the bottom of the first boss 101 of the top cover plate 1, the columns 302 of the negative pole column 3 and the positive pole column 5 respectively pass through the through holes at the two ends, the bottom plate 301 is clamped into the third groove 203 at the bottom of the second boss 201, and a sealing ring 8 is arranged between the bottom plate 301 and the second groove 105 to ensure tightness; then, the plastic 4 on the negative electrode insulation and the plastic 6 on the positive electrode conduction are prepared through an injection molding machine, after injection molding is finished, due to the cooperation of the back-off post 401 and the back-off hole 103 and the clamping block 402 and the clamping groove 102, the negative electrode post 3 and the positive electrode post 5 can be prevented from generating radial looseness and axial rotation, and the reliability and the tightness of the top cover of the battery are effectively improved. The bottom plate 301 and the column 302 of the negative pole column 3 are made of copper and aluminum respectively, so that friction welding technology with complex process, high cost and low production yield is abandoned, and a composite plate stamping process with lower cost and higher production yield is adopted.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a prevent not hard up power battery top cap of utmost point post, its characterized in that includes top cap piece and lower plastic support, top cap piece both ends all are provided with first boss, and lower plastic support both ends all are provided with the second boss, and the first recess of first boss bottom is embedded at second boss top, and all are provided with the through-hole in the centre of first boss and second boss, and first boss and the second boss at both ends are used for setting up negative pole post and positive pole post respectively; the negative pole column and the positive pole column are composed of a bottom plate and a column body arranged at the top of the bottom plate, and the column body is provided with a concave ring which is concave inwards; the bottom plates of the negative pole column and the positive pole column are respectively embedded into third grooves at the bottoms of the second bosses at two ends, the column body penetrates through the through hole of the first boss, the top surface of the column body is higher than the top surface of the first boss, the negative pole column is buckled with the first boss through negative pole insulating upper plastic, and the positive pole column is buckled with the first boss through positive pole conductive upper plastic for preventing loosening; sealing rings are arranged between the bottom plates of the negative pole column and the positive pole column and the second groove at the bottom of the first boss, so that the tightness is ensured; and the middle parts of the top cover sheet and the lower plastic bracket are provided with explosion-proof valve structures.
2. The injection molded top cover for a power battery for preventing loosening of a pole as claimed in claim 1, wherein: a circle of back-off holes are uniformly distributed on the top of the first boss along the circumferential direction, the back-off holes are in a shape with a small upper part and a big lower part, a circle of clamping grooves are uniformly distributed on the edge of the through hole on the first boss along the circumferential direction, a through hole is formed in the middle of the plastic on the negative electrode insulation and the plastic on the positive electrode conduction and is used for connecting a column body of the negative electrode column and a column body of the positive electrode column, and a convex ring which is convex is arranged in the through hole and is used for clamping a concave ring on the column body; the bottom of plastic on the negative electrode insulation and the bottom of plastic on the positive electrode conduction are provided with a circle of back-off column and clamping blocks along the circumferential direction, and the back-off column and the clamping blocks are respectively connected with the back-off holes and the clamping grooves on the top of the first boss.
3. A power cell injection molded top cover for preventing loosening of poles according to claim 1 or 2, wherein: the top of the lower plastic support is provided with a plurality of positioning protrusions, and the bottom of the top cover sheet is provided with a plurality of corresponding positioning holes for positioning when the top cover sheet and the lower plastic support are installed.
4. A power cell injection molded top cover for preventing pole loosening as claimed in claim 3, wherein: the bottom plate of the negative pole column and the column are made of copper material and aluminum material respectively, and are manufactured through a composite plate stamping process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322120729.XU CN220474751U (en) | 2023-08-08 | 2023-08-08 | Power battery injection molding top cover capable of preventing polar column from loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322120729.XU CN220474751U (en) | 2023-08-08 | 2023-08-08 | Power battery injection molding top cover capable of preventing polar column from loosening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220474751U true CN220474751U (en) | 2024-02-09 |
Family
ID=89779500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322120729.XU Active CN220474751U (en) | 2023-08-08 | 2023-08-08 | Power battery injection molding top cover capable of preventing polar column from loosening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220474751U (en) |
-
2023
- 2023-08-08 CN CN202322120729.XU patent/CN220474751U/en active Active
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