CN203085653U - Liquid injection hole sealing structure of square lithium ion power battery - Google Patents
Liquid injection hole sealing structure of square lithium ion power battery Download PDFInfo
- Publication number
- CN203085653U CN203085653U CN201220688702XU CN201220688702U CN203085653U CN 203085653 U CN203085653 U CN 203085653U CN 201220688702X U CN201220688702X U CN 201220688702XU CN 201220688702 U CN201220688702 U CN 201220688702U CN 203085653 U CN203085653 U CN 203085653U
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- China
- Prior art keywords
- liquid injection
- injection hole
- sealing
- cover board
- battery
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- 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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- 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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- Secondary Cells (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The utility model discloses a liquid injection hole sealing structure of a square lithium ion power battery. The liquid injection hole sealing structure comprises a liquid injection hole formed in a battery cover plate and provided with a stepped structure on the liquid injection surface, wherein a sealing rubber tripe with a sealing cap is embedded in the liquid injection hole through the stepped structure, and a sealing cover plate embedded on the upper layer stepped surface of the stepped structure firmly presses the sealing cap on the lower layer stepped surface of the stepped structure and is hermetically connected with the periphery of the battery cover plate to seal the liquid injection hole. According to the utility model, a modular integral device is used for achieving safe sealing and protecting effects, simplifying the operation effect and improving the sealing property of the battery, the safety performance is excellent, the structure is simple and the liquid injection hole sealing structure is convenient to assemble.
Description
Technical field
The utility model relates to technical field of lithium ion, is specifically related to a kind of square power lithium-ion battery liquid injection hole hermetically-sealed construction.
Background technology
Current battery industry product structure is very unreasonable, and is low-grade saturated, and high-grade wretched insufficiency, low grade products overstock in a large number, harmful competition, and then supply falls short of demand for the high-quality battery.Especially great-capacity power battery is in great demand both at home and abroad, and big capacity, high-performance, safe and reliable electrokinetic cell are eager to seek in order to solve environmental protection and energy problem in some developed countries and area.
Lithium ion battery compare with the battery of other types such as plumbic acid, cadmium nickel have that specific capacity is big, operating voltage is high, charging rate is fast, operating temperature range is wide, have extended cycle life, volume is little, advantage such as in light weight.At present, be widely used in fields such as mobile phone, notebook computer, electric tool, and its range of application more and more widely.Along with the maturation of electric vehicle engineering and perfect day by day, the dream that electric automobile, hybrid vehicle are come into daily life has become possibility, and is breeding huge business opportunity in the process that electric automobile is popularized.And the quality of vehicle mounted dynamic battery performance directly affects the overall performance of electric automobile, and this also has higher requirement to the electric automobile vehicle mounted dynamic battery.
At present, the square power lithium-ion battery is by the more electric automobiles that is applied to, and battery outer package shell is box hat or aluminum hull.Automobile can run into operating mode situation complicated and changeable in the process of moving, and the security performance of battery under severe service condition had higher requirement, and the security performance of electrokinetic cell has also become the bottleneck place of electric motor car development.
Conventional at present electrokinetic cell liquid injection hole seals the colloid solidification that adopt more and carries out pressurizing window, colloid has aging colloid ion thing and decomposes under long-time varying environment, later stage can be caused situation generations such as poorly sealed to battery, inside battery electricity liquid is flowed out, thereby can cause that the blast of catching fire waits the accident of threat to life safety to take place.
The utility model content
The purpose of this utility model is to overcome the defective of prior art and provides a kind of security performance good, and is simple in structure, the square power lithium-ion battery liquid injection hole hermetically-sealed construction of being convenient to assemble.
For achieving the above object, the utility model adopts as technical scheme:
A kind of square power lithium-ion battery liquid injection hole hermetically-sealed construction, comprise that the fluid injection mask that is located on the battery cover board has the liquid injection hole of step structure, in described liquid injection hole, embed a fluid sealant tripe that has a sealing cap by described step structure, one is embedded in after seal cover board on the upper strata cascaded surface of described step structure tightly is pressed in described sealing cap on lower floor's cascaded surface of described step structure, and is tightly connected with the periphery of described battery cover board and with described liquid injection hole sealing.
After the sealing, the upper surface of described seal cover board and the upper surface of described battery cover board are at grade.
The periphery of described seal cover board and the welding of the junction of described battery cover board.
The laser mode welding is adopted in the periphery of described seal cover board and the junction of described battery cover board.
The periphery of the periphery of described sealing cap and the cascaded surface at its place leaves the space.
The utility model has promptly played the function of security seal protection by adopting the modular single unit system, has simplified operating effect again, has improved the sealing property of battery, and security performance is good, and is simple in structure, is convenient to assembling.
Description of drawings
Figure 1 shows that the structural representation of the square power lithium-ion battery liquid injection hole that the utility model embodiment provides;
Fig. 2 is the sealing schematic diagram that is depicted as the square power lithium-ion battery liquid injection hole that the utility model embodiment provides;
Among the figure: 1, battery cover board, 2, liquid injection hole, 3, the fluid sealant tripe, 4, seal cover board, 20, step structure, 30, sealing cap.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with accompanying drawing.
Shown in Fig. 1 ~ 2, a kind of square power lithium-ion battery liquid injection hole hermetically-sealed construction, comprise that the fluid injection mask that is located on the battery cover board 1 has the liquid injection hole 2 of step structure 20, in described liquid injection hole 2, embed a fluid sealant tripe 3 that has a sealing cap 30 by described step structure 20, one is embedded in after seal cover board 4 on the upper strata cascaded surface of described step structure 20 tightly is pressed in described sealing cap 30 on lower floor's cascaded surface of described step structure 20, and is tightly connected with the periphery of described battery cover board 1 and with described liquid injection hole 2 sealings.
Owing to adopt above-mentioned step structure, thereby after the sealing, the upper surface of the upper surface of described seal cover board 4 and described battery cover board 1 at grade.
Further, the junction of the periphery of described seal cover board 4 and described battery cover board 1 adopts the laser welding mode to weld.
Further, the periphery of lower floor's cascaded surface of the periphery of described sealing cap 30 and the step structure at its place 20 leaves certain space, thereby has guaranteed good sealing effect.
Among the utility model embodiment, described liquid injection hole 2 is circular, accordingly, described step structure on the fluid injection face of liquid injection hole also is a toroidal, the sealing cap of described fluid sealant tripe and the part of inserting described liquid injection hole are accordingly also for circular, and described seal cover board is the toroidal for matching also.
Certainly, also can make other geometry.
The utility model causes the position while welding on the battery lid all to be on the plane owing to adopt the parallel end faces Welding Structure, thereby has guaranteed the quality of welding, on the basis that guarantees cell safety, has improved the operability and the performance of battery.
The utility model is embedded into the fluid sealant tripe in the liquid injection hole of battery cover reservation owing to adopt the insert seal structure, adds the welding of seal cover plate secondary seal again, thereby has played sealing function twice.
The utility model is by adopting whole fluid sealant tripe, in addition seal cover board and battery lid welded type sealing again, increased the sealing effectiveness at position, battery liquid-filling hole better, simplified assembly technology, help solving the not quality problems of strict appearance of process control, improve the performance of battery, can be widely used in shell with square aluminum power lithium-ion battery inside.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. square power lithium-ion battery liquid injection hole hermetically-sealed construction, it is characterized in that, comprise that the fluid injection mask that is located on the battery cover board has the liquid injection hole of step structure, in described liquid injection hole, embed a fluid sealant tripe that has a sealing cap by described step structure, one is embedded in after seal cover board on the upper strata cascaded surface of described step structure tightly is pressed in described sealing cap on lower floor's cascaded surface of described step structure, and is tightly connected with the periphery of described battery cover board and with described liquid injection hole sealing.
2. square power lithium-ion battery liquid injection hole hermetically-sealed construction according to claim 1 is characterized in that after the sealing, the upper surface of described seal cover board and the upper surface of described battery cover board are at grade.
3. square power lithium-ion battery liquid injection hole hermetically-sealed construction according to claim 1 and 2 is characterized in that, the periphery of described seal cover board and the welding of the junction of described battery cover board.
4. square power lithium-ion battery liquid injection hole hermetically-sealed construction according to claim 3 is characterized in that, the laser mode welding is adopted in the periphery of described seal cover board and the junction of described battery cover board.
5. square power lithium-ion battery liquid injection hole hermetically-sealed construction according to claim 1 is characterized in that the periphery of the periphery of described sealing cap and the cascaded surface at its place leaves the space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220688702XU CN203085653U (en) | 2012-12-11 | 2012-12-11 | Liquid injection hole sealing structure of square lithium ion power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220688702XU CN203085653U (en) | 2012-12-11 | 2012-12-11 | Liquid injection hole sealing structure of square lithium ion power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203085653U true CN203085653U (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220688702XU Expired - Lifetime CN203085653U (en) | 2012-12-11 | 2012-12-11 | Liquid injection hole sealing structure of square lithium ion power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203085653U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201425A (en) * | 2014-08-06 | 2014-12-10 | 浙江宝仕电源有限公司 | Environment-friendly lead-acid battery |
| CN107978700A (en) * | 2017-12-28 | 2018-05-01 | 桑德集团有限公司 | A kind of cover board and metal shell for metal battery case |
-
2012
- 2012-12-11 CN CN201220688702XU patent/CN203085653U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201425A (en) * | 2014-08-06 | 2014-12-10 | 浙江宝仕电源有限公司 | Environment-friendly lead-acid battery |
| CN104201425B (en) * | 2014-08-06 | 2016-05-25 | 浙江宝仕电源有限公司 | A kind of environment-friendly type lead-acid accumulator |
| CN107978700A (en) * | 2017-12-28 | 2018-05-01 | 桑德集团有限公司 | A kind of cover board and metal shell for metal battery case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220126 Address after: 266500 Minshan Road, Huangdao District, Qingdao, Shandong Patentee after: LISHEN (QINGDAO) NEW ENERGY CO.,LTD. Address before: 300384 Tianjin Xiqing District Binhai hi tech Industrial Development Zone (outer ring) 38 Haitai South Road Patentee before: TIANJIN LISHEN BATTERY JOINT-STOCK Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |