CN219658829U - Low-cost and good-structural power battery cover plate - Google Patents
Low-cost and good-structural power battery cover plate Download PDFInfo
- Publication number
- CN219658829U CN219658829U CN202320034830.0U CN202320034830U CN219658829U CN 219658829 U CN219658829 U CN 219658829U CN 202320034830 U CN202320034830 U CN 202320034830U CN 219658829 U CN219658829 U CN 219658829U
- Authority
- CN
- China
- Prior art keywords
- negative pole
- cover plate
- pole post
- post
- upper cover
- 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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- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000003466 welding Methods 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 7
- 229920003023 plastic Polymers 0.000 claims abstract description 7
- 239000003292 glue Substances 0.000 claims description 20
- 238000001746 injection moulding Methods 0.000 claims description 13
- 238000010073 coating (rubber) Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 4
- 230000002572 peristaltic effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 11
- 238000005538 encapsulation Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model belongs to the technical field of power battery equipment, and particularly relates to a power battery cover plate with low cost and good structural performance. According to the utility model, through the arrangement of the structure with low cost and easy production and manufacture, the situation that the sealing property and the insulating property are poor due to the peristaltic movement of the pole column caused by the softening of the plastic can be avoided, the actual use effect of the device is enhanced, the difficulty in producing the battery is reduced, the production efficiency of the battery is improved, the welding connection work of the power battery is facilitated, the battery has good overcurrent capacity, and the utilization efficiency of materials is improved.
Description
Technical Field
The utility model relates to the technical field of power battery equipment, in particular to a power battery cover plate with low cost and good structural performance.
Background
The power battery is a power source for providing power for tools, and is a storage battery for providing power for electric automobiles, electric trains, electric bicycles and golf carts. The power battery adopts a valve port sealed lead-acid battery, an open tubular lead-acid battery and a lithium iron phosphate battery.
Along with the continuous development of society, the demand of people for sustainable energy is continuously enhanced, new energy automobiles are continuously replacing gasoline automobiles and diesel automobiles, and people increasingly need power batteries with high stability and strong overcurrent capacity, and are convenient to produce and manufacture. The power battery consists of a cover plate, a negative electrode, a diaphragm, a positive electrode, electrolyte and a battery shell, wherein the cover plate plays an important role, not only forms stable sealing property and insulating property, but also plays a role in normal discharge use of the negative electrode and the positive electrode.
The prior art has the following problems:
1. the existing power battery cover plate with low cost and good structural performance is mainly characterized in that a negative pole column and a positive pole column are directly welded on the cover plate in the production process of a traditional power battery, high temperature and high pressure and partial scraps are generated in welding, so that the welding quality of the positive pole column and the negative pole column can be influenced, plastic is possibly softened, the pole column of the battery is peristaltic, and then the sealing effect and the insulating effect of the power battery are greatly reduced;
2. the existing power battery cover plate with low cost and good structural performance is large in occupied volume of the polar columns in most traditional power batteries, so that the volume of organic electrolyte is reduced, the overcurrent capacity of the power batteries is further reduced, the power of the power batteries is also reduced, the actual using effect of the power batteries is weakened, meanwhile, the material utilization rate of most traditional power batteries is low, redundancy of the materials exists, the quality of the power batteries is large, and the energy density is low.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the power battery cover plate with low cost and good structural performance, and solves the problems of complex manufacturing and low energy density of the structure.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a power battery apron that low-cost structrual good, includes the upper cover plate, be provided with the riveting ring on the upper cover plate, be provided with first blind hole on the riveting ring, be provided with the rubber coating of moulding plastics on the upper cover plate, the upper cover plate bottom is provided with the insulating glue support, be provided with the sealing washer on the insulating glue support, the insulating glue support is pegged graft and is had the negative pole post, the negative pole post bottom is provided with the concave station, negative pole post bottom fixedly connected with bulge loop, the side of negative pole post is provided with concave ring, the negative pole post top is provided with the second blind hole, the insulating glue support is pegged graft there is the positive pole post, negative pole post bottom welding has the negative pole to converge the piece, be provided with the negative pole arch on the positive pole to converge the piece, be provided with the explosion-proof piece on the upper cover plate, be provided with explosion-proof protection film on the upper cover plate.
As a preferable technical scheme of the utility model, the upper cover plate is made of an aluminum substrate, two identical riveting rings are stamped on the upper cover plate, and a plurality of first blind holes are formed around the riveting rings.
As a preferable technical scheme of the utility model, the number of the injection molding encapsulation is two, and the injection molding encapsulation is injection molded, and the injection molding encapsulation is poured into the first blind hole and fixed in the injection molding process.
As a preferable technical scheme of the utility model, two through holes with the same size are arranged on the insulating glue support, a raised circular ring is fixedly connected to the through holes, the outer diameter size of the sealing ring is matched with the inner diameter size of the through holes on the insulating glue support, and the sealing ring is movably inserted into the insulating glue support.
As a preferable technical scheme of the utility model, the size, the structure and the dimension of the negative pole post and the positive pole post are identical, and the assembly structure of the negative pole post and the positive pole post is also identical.
As a preferable technical scheme of the utility model, the outer diameter sizes of the negative pole column and the positive pole column are matched with the inner diameter sizes of the sealing rings, and the negative pole column and the positive pole column are movably inserted with the sealing rings.
As a preferable technical scheme of the utility model, the outer diameter of the negative electrode bulge is matched with the inner diameter of the concave table, and the negative electrode bulge is inserted into the boss and fixed by laser welding.
Compared with the prior art, the utility model provides the power battery cover plate with low cost and good structural performance, which has the following beneficial effects:
1. this power battery apron that low-cost structural is good makes whole device through setting up upper cover plate, riveting ring, first blind hole, moulding plastics rubber coating, insulating glue support, sealing washer, negative pole post and positive pole post and can avoid welding in the environment of high temperature high pressure, avoids plastic to soften simultaneously and leads to the pole post peristaltic motion to make the poor condition of leakproofness and insulativity take place, has not only improved the in-service use effect of whole device like this, has also reduced the degree of difficulty of operating personnel production battery apron, has improved power battery's production efficiency, the satisfaction of reinforcing use.
2. This power battery apron that low-cost structural is good through setting up upper cover plate, negative pole post, concave station, bulge loop, concave ring, second blind hole, sealing washer, negative pole conflux piece, negative pole arch and anodal conflux piece make the space area increase under power battery's the apron, so not only more be favorable to power battery to carry out welded connection work, reduce operating personnel's the work degree of difficulty, can also make power battery have good overflow ability, also make power battery's energy density increase, reduced the cost of production preparation, improved the utilization efficiency of material.
Drawings
FIG. 1 is a schematic elevational view of the structure of the present utility model;
FIG. 2 is a schematic top view of the structure of the present utility model;
FIG. 3 is a schematic view of the bottom view of the structure of the present utility model;
FIG. 4 is a schematic side view of the structure of the present utility model;
FIG. 5 is an enlarged schematic view of the structure shown in FIG. 2A;
FIG. 6 is a schematic diagram of a second cross-sectional structure of an embodiment of a solid negative electrode column according to the present utility model;
fig. 7 is a schematic diagram of a bottom structure of a second embodiment of the present utility model.
In the figure: 1. an upper cover plate; 101. a riveting ring; 102. a first blind hole; 2. injection molding and encapsulation; 3. an insulating adhesive bracket; 4. a seal ring; 5. a negative electrode column; 51. a concave table; 52. a convex ring; 53. a concave ring; 54. a second blind hole; 6. a positive electrode post; 7. a negative electrode bus bar; 71. a negative electrode protrusion; 8. positive electrode confluence sheet; 81. the positive electrode is convex; 9. explosion-proof sheet; 10. an explosion-proof protective film.
Detailed Description
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 7, in the present embodiment: the utility model provides a power battery cover plate with low cost and good structural property, which comprises an upper cover plate 1, be provided with riveting ring 101 on upper cover plate 1, strengthen the coordination performance of integral device in the use, strengthen the practicality of integral device, be provided with first blind hole 102 on riveting ring 101, the effectual stability of connecting between each component of strengthening integral device, also reduced the degree of difficulty of integral device installation, be provided with the encapsulation 2 of moulding plastics on upper cover plate 1, the convenience of using has been increased, the leakproofness and the actual result of using of integral device have been strengthened simultaneously, upper cover plate 1 bottom is provided with insulating rubber support 3, the mobility of integral device has been strengthened, greatly strengthened the controllability of integral device, guaranteed the practicality of integral device, be provided with sealing washer 4 on the insulating rubber support 3, the leakproofness of integral device has been increased, the stability of integral device connection has been strengthened, the difficulty of the assembly of the whole device is reduced, the insulating adhesive support 3 is inserted with the negative pole post 5, the operability of the whole device is enhanced, the concave table 51 is arranged at the bottom of the negative pole post 5, the matching strength of the whole device in the use process is enhanced, the convex ring 52 is fixedly connected at the bottom of the negative pole post 5, the stability of each component is enhanced, the concave ring 53 is arranged on the side surface of the negative pole post 5, the use coordination of the whole device is enhanced, the top of the negative pole post 5 is provided with the second blind hole 54, the insulating adhesive support 3 is inserted with the positive pole post 6, the negative pole post 5 is welded with the negative pole busbar 7, the range of the position and the angle of the whole device in the common operation is stabilized, the negative pole bulge 71 is arranged on the negative pole busbar 7, the positive pole busbar 8 is welded with the positive pole busbar 8, the positive pole bulge 81 is arranged on the positive pole busbar 8, the matching strength of the whole device in the use process is enhanced, the explosion-proof piece 9 is arranged on the upper cover plate 1, so that explosion of the battery caused by overlarge internal pressure or overhigh temperature is effectively avoided, and the explosion-proof protection film 10 is arranged on the upper cover plate 1, so that the safety performance of the whole device is enhanced, and the using satisfaction degree of the whole device is improved.
In the first embodiment, referring to fig. 1-5, the upper cover plate 1 is made of an aluminum substrate, so that not only can the effect of good working strength be achieved, but also the manufacturing cost can be effectively reduced, the large-batch use is facilitated, the same two riveting rings 101 are stamped on the upper cover plate 1, the production efficiency of the integral device is improved by the stamping process, meanwhile, good stability is achieved, the simpler use of a user is facilitated, a plurality of first blind holes 102 are formed around the riveting rings 101, the stability of the integral device is effectively enhanced, the assembly effect of the integral device is enhanced, the number of injection molding rubber packages 2 is two and is injection molding, the practicality of the integral device is enhanced, the injection molding rubber packages 2 can be poured into the first blind holes 102 and are fixedly molded in the injection molding process, the matching strength of the integral device in the use process is enhanced, the insulating glue bracket 3 is provided with two through holes with the same size, and the through holes are fixedly connected with raised circular rings, so that the sealing performance of the whole device is enhanced, the outer diameter size of the sealing ring 4 is matched with the inner diameter size of the through holes on the insulating glue bracket 3, the sealing ring 4 is movably inserted with the insulating glue bracket 3, the position and angle range of the insulating glue bracket 3 when all structures operate together are strictly and definitely stabilized, the situation that the whole device is blocked by each other in the operating process is avoided, the sizes, structures and sizes of the cathode column 5 and the anode column 6 are completely the same, the assembling structure of the cathode column 5 and the anode column 6 is also the same, the coordination performance of the whole device in the using process is enhanced, the durability of the whole device is enhanced, the outer diameter sizes of the cathode column 5 and the anode column 6 are matched with the inner diameter size of the sealing ring 4, the negative pole post 5 and the positive pole post 6 are movably inserted with the sealing ring 4, so that the matching strength of the whole device in the use process is enhanced to a greater extent, the situation that the whole device is asymmetric in part matching in the use process is avoided, the outer diameter of the negative pole bulge 71 is identical with the inner diameter of the concave table 51, the negative pole bulge 71 is inserted into the concave table 51 and fixed through laser welding, the control of the whole device by a worker is improved to the greatest extent, the use experience of the whole device is improved, and the operation seat difficulty of the worker is reduced.
In the second embodiment, referring to fig. 6-7, the second blind hole 54 on the negative electrode post 5 is extended to a concave table surface for convenience of illustration, the concave tables 51 on the negative electrode post 5 and the positive electrode post 6 are in a plane at this time, and the negative electrode protrusion 71 on the negative electrode bus bar 7 and the positive electrode protrusion 81 on the positive electrode bus bar 8 are in a plane at this time, so that the cost of the post can be effectively simplified.
The working principle and the using flow of the utility model are as follows: the operator inserts the negative pole post 5 inside sealing washer 4 for the concave ring 53 on the negative pole post 5 is pegged graft with sealing washer 4, then peg graft and fix sealing washer 4 on the through-hole of insulating glue support 3, upper cover plate 1 is not riveted this moment, then rivet deformation is carried out to upper cover plate 1 and is formed riveting ring 101 and a plurality of first blind holes 102, the encapsulation 2 is moulded in the membrane to above-mentioned assembled part, just so can fix upper cover plate 1 and sealing washer 4 and negative pole post 5, afterwards laminate the concave station 51 of negative pole post 5 bottom with the protruding 71 on the negative pole busbar 7 again, use laser welding fixed negative pole busbar 7 and negative pole post 5, the positive pole post 6 and negative pole post 5 structure are the same this moment, the packaging structure is the same, the assembled method can be repeated, the battery cover plate that makes with this kind of method can effectively avoid whole device to take place condition such as soften or the leakproofness is bad in the manufacturing welding process, also make the battery cover plate can provide great space area, the welding preparation of product has also improved the overflow ability and the actual use effect of battery.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The utility model provides a power battery apron that low-cost structruality is good, includes upper cover plate (1), its characterized in that: be provided with riveting ring (101) on upper cover plate (1), be provided with first blind hole (102) on riveting ring (101), be provided with rubber coating (2) of moulding plastics on upper cover plate (1), upper cover plate (1) bottom is provided with insulating glue support (3), be provided with sealing washer (4) on insulating glue support (3), insulating glue support (3) are pegged graft and are had negative pole post (5), negative pole post (5) bottom is provided with concave station (51), negative pole post (5) bottom fixedly connected with bulge loop (52), the side of negative pole post (5) is provided with concave ring (53), negative pole post (5) top is provided with second blind hole (54), insulating glue support (3) are pegged graft and are had positive pole post (6), negative pole post (5) bottom welding has negative pole busbar (7), be provided with negative pole arch (71) on negative pole busbar (7), positive pole post (6) bottom welding has positive pole busbar (8), positive pole piece (8) are provided with on the arch (1), explosion-proof membrane (81) are provided with on the cover plate (1).
2. A low cost, structurally sound power cell cover according to claim 1, wherein: the upper cover plate (1) is made of an aluminum substrate, two identical riveting rings (101) are stamped on the upper cover plate (1), and a plurality of first blind holes (102) are formed in the periphery of each riveting ring (101).
3. A low cost, structurally sound power cell cover according to claim 1, wherein: the number of the injection molding rubber coatings (2) is two, the injection molding rubber coatings (2) are injection molded, and the injection molding rubber coatings (2) can be poured into the first blind holes (102) and are fixedly molded in the injection molding process.
4. A low cost, structurally sound power cell cover according to claim 1, wherein: the insulating glue support (3) is provided with two through holes with the same size, a raised circular ring is fixedly connected to the through holes, the outer diameter size of the sealing ring (4) is matched with the inner diameter size of the through holes in the insulating glue support (3), and the sealing ring (4) is movably inserted into the insulating glue support (3).
5. A low cost, structurally sound power cell cover according to claim 1, wherein: the size, the structure and the dimension of the negative pole column (5) are identical to those of the positive pole column (6), and the assembly structure of the negative pole column (5) and the positive pole column (6) is identical.
6. A low cost, structurally sound power cell cover according to claim 1, wherein: the external diameter of the negative pole post (5) and the positive pole post (6) are matched with the internal diameter of the sealing ring (4), and the negative pole post (5) and the positive pole post (6) are movably inserted into the sealing ring (4).
7. A low cost, structurally sound power cell cover according to claim 1, wherein: the outer diameter of the negative electrode bulge (71) is matched with the inner diameter of the concave table (51), and the negative electrode bulge (71) is inserted into the concave table (51) and fixed by laser welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320034830.0U CN219658829U (en) | 2023-01-06 | 2023-01-06 | Low-cost and good-structural power battery cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320034830.0U CN219658829U (en) | 2023-01-06 | 2023-01-06 | Low-cost and good-structural power battery cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219658829U true CN219658829U (en) | 2023-09-08 |
Family
ID=87862681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320034830.0U Active CN219658829U (en) | 2023-01-06 | 2023-01-06 | Low-cost and good-structural power battery cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219658829U (en) |
-
2023
- 2023-01-06 CN CN202320034830.0U patent/CN219658829U/en active Active
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