CN204809307U - Secondary cell annotates liquid hole and uses subassembly - Google Patents
Secondary cell annotates liquid hole and uses subassembly Download PDFInfo
- Publication number
- CN204809307U CN204809307U CN201520524709.1U CN201520524709U CN204809307U CN 204809307 U CN204809307 U CN 204809307U CN 201520524709 U CN201520524709 U CN 201520524709U CN 204809307 U CN204809307 U CN 204809307U
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- CN
- China
- Prior art keywords
- secondary cell
- liquid injection
- injection hole
- sealing cover
- needle head
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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
Abstract
The utility model provides a secondary cell annotates liquid hole and uses subassembly, it includes: the sealed lid of elasticity, the sealed secondary cell that is fixed in annotates the liquid hole, and the syringe, have cavity syringe needle portion and communicate in the barrel portion of cavity syringe needle portion. Wherein, central empty needle head impales the sealed lid of elasticity in order forming when perforating with the inside intercommunication of secondary cell and sealed the covering of elasticity under the exogenic action, forms between outer wall and the fenestrate inner wall that fenestrate inner wall elasticity pressed cavity syringe needle portion and the outer wall of cavity syringe needle portion and seals, central empty needle head seals to cover from elasticity under the exogenic action extracts the back, the closed disappearance in order to locate to form self sealss at the punch position of perforating. In the basis the utility model discloses an among the secondary cell annotates liquid hole and uses subassembly, based on the setting of sealed lid of elasticity and injection head, can guarantee good leakproofness, avoid the inside gaseous leakage of electrolyte or secondary cell, need not the accurate positioning like prior art simultaneously and use one -off rubber seal nail, simplify production processes, improve production efficiency, reduction in production cost.
Description
Technical field
The utility model relates to secondary cell field, particularly relates to a kind of secondary cell liquid injection hole assembly.
Background technology
In lithium ion battery (one of secondary cell) production process, in order to inject electrolyte to battery, liquid injection hole H must be offered on battery cap 3, as shown in Figure 1.Complete in fluid injection and subsequent intermediate step process, need liquid injection hole H to seal, to prevent battery moisture content in intermediate storage process from entering battery, and preventing leaking of electrolyte or inside battery gas.
See Fig. 2, usually after completing per pass intermediate step (as fluid injection), rubber seal can be used to follow closely 4 and to remove shutoff liquid injection hole H; Then, before carrying out next process (as changing into), need to take out rubber seal nail 4 with special equipment.From fluid injection to metal sealing nail welding, every one intermediate step of period all needs plug rubber seal nail 4 once.
Meanwhile, see Fig. 3, in the prior art, when carrying out fluid injection and formation process, use rubber filling head 5 to push down or cover a liquid injection hole H and seal, to form required reservoir channel 6 between rubber filling head 5 and liquid injection hole 2, and ensure good sealing.
In order to ensure the stability of technology and equipment, just require that prior art at least needs to reach following several high request:
When slotting rubber seal follows closely 4, ensure the alignment degree between rubber seal nail 4 and liquid injection hole H;
During the operation such as carry out fluid injection and change into, ensure the alignment degree between rubber filling head 5 and liquid injection hole H;
During the operation such as carry out fluid injection and change into, the end face of rubber filling head 5 and the end face of liquid injection hole H need to be formed excellent sealing face;
Extract rubber seal when following closely 4, between rubber seal nail 4 and nail pulling jaw (not shown), need good matching degree.
And in actual production process, be often difficult to meet above requirement.Roughly reason is as follows with the impact caused:
Equipment is difficult to the exact position effectively identifying and determine each battery core liquid injection hole H;
Rubber seal nail 4 is difficult to the consistency ensureing size and dimension.
Because of above two reasons, equipment is difficult to the alignment degree ensureing rubber seal nail 4 and liquid injection hole H, thus is difficult to ensure plug pin accuracy rate, finally affects device efficiency;
Roughly the same reason, equipment is difficult to the alignment degree ensureing rubber filling head 5 and liquid injection hole H, thus is difficult to form effective seal face, electrolyte can be caused the pollution of metal sealing tack welding junction, finally affect sealed laser welding quality.
Because the state after rubber seal nail 4 inserts is inconsistent, and the collision in battery handling process, also directly causes the unsteadiness of pulling out rubber seal nail technique, thus affect production efficiency;
Simultaneously, consider rubber seal nail 4 because damage problem possible in pilot process, usually these rubber seals nail 4 is all disposable, can not reuse, and the action of each plug nail all needs special equipment to go, repeatedly plugging rubber seal nail 4 not only can cause production efficiency low, also improves material and the apparatus for production line cost of product simultaneously.
In sum, the product of prior art and process step design sinking production efficiency, adds product cost, have impact on product quality, be difficult to meet present high efficiency, low cost, high-quality Production requirement.
Utility model content
In view of Problems existing in background technology, the purpose of this utility model is to provide a kind of secondary cell liquid injection hole assembly, and it can ensure the sealing of secondary cell liquid injection hole, avoids the leakage of electrolyte or secondary cell internal gas.
Another object of the present utility model is to provide a kind of secondary cell liquid injection hole assembly, without the need to accurately locating and without the need to using disposable rubber seal to follow closely, repeatedly plugging rubber seal nail without the need to using special equipment.
An object more of the present utility model is to provide a kind of secondary cell liquid injection hole assembly, and it can simplify production process, enhances productivity, and reduces production cost.
To achieve these goals, the utility model provides a kind of secondary cell liquid injection hole assembly, and it comprises: elastic sealing cover, is sealingly fastened in secondary cell liquid injection hole; And syringe, there is hollow needle head and be communicated in the barrel of hollow needle head; Wherein, when hollow needle head pierce through under external force elastic sealing cover with is communicated with secondary cell inside and cover at elastic packing formed bore a hole time, the outer wall and being formed between the inwall of boring a hole and the outer wall of hollow needle head that the inwall elasticity of perforation is pressed against hollow needle head seals; After hollow needle head covers from elastic packing under external force and extracts, perforation is closed disappears to form self sealss at punch position place.
The beneficial effects of the utility model are as follows: according in secondary cell liquid injection hole assembly of the present utility model, and elastic sealing cover is sealingly fastened in secondary cell liquid injection hole, ensures good sealing, avoids the leakage of electrolyte or secondary cell internal gas, when the operation such as carry out secondary cell fluid injection or change into, only the hollow needle head of syringe need be pierced through elastic sealing cover to bore a hole and the outer wall and being formed between the inwall of boring a hole and the outer wall of hollow needle head that the inwall elasticity of boring a hole is pressed against hollow needle head seals to be communicated with secondary cell inside and to cover at elastic packing to be formed, electrolyte or gas just can inject via hollow needle head and barrel or discharge, fluid injection or after having changed into, after extracting hollow needle head, perforation is closed disappears to form self sealss at punch position place, thus without the need to the such accurate location of prior art and without the need to using disposable rubber seal to follow closely, rubber seal nail is repeatedly plugged without the need to using special equipment, simplify production process, enhance productivity, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the partial perspective view of secondary cell in prior art;
Fig. 2 is the sealing schematic diagram of secondary cell liquid injection hole in prior art;
Fig. 3 is the schematic diagram of the injection process of secondary cell in prior art;
Fig. 4 is the stereogram according to secondary cell liquid injection hole assembly of the present utility model;
Fig. 5 is the exploded view according to secondary cell liquid injection hole assembly of the present utility model;
Fig. 6 is the cutaway view before being pierced according to the elastic sealing cover of secondary cell liquid injection hole assembly of the present utility model;
Fig. 7 is the cutaway view after being pierced according to the elastic sealing cover of secondary cell liquid injection hole assembly of the present utility model;
Fig. 8 is the cutaway view after extracting according to the syringe of secondary cell liquid injection hole assembly of the present utility model.
Wherein, description of reference numerals is as follows:
1 elastic sealing cover 4 rubber seal nail
11 perforation 5 rubber filling heads
12 recess 6 passages
2 syringe P punch positions
21 hollow needle head H liquid injection holes
22 barrel B secondary cells
3 top covers
Embodiment
Describe in detail with reference to the accompanying drawings according to secondary cell liquid injection hole assembly of the present utility model.
With reference to Fig. 4 to Fig. 8, comprise according to secondary cell liquid injection hole assembly of the present utility model: elastic sealing cover 1, be sealingly fastened in secondary cell liquid injection hole H; And syringe 2, there is hollow needle head 21 and be communicated in the barrel 22 of hollow needle head 21.
Wherein, when hollow needle head 21 pierces through elastic sealing cover 1 under external force to be communicated with secondary cell inside and to form perforation 11 on elastic sealing cover 1, the inwall elasticity of perforation 11 is pressed against the outer wall of hollow needle head 21 and is formed between the inwall of perforation 11 and the outer wall of hollow needle head 21 and seals; When hollow needle head 21 is under external force from after elastic sealing cover 1 is extracted, perforation 11 is closed disappears to form self sealss at punch position P (shown in broken lines in fig. 8) place.
Particularly, with reference to Fig. 6 to Fig. 8, when secondary cell fluid injection, barrel 22 is communicated in outside mechanism for filling liquid (not shown), hollow needle head 21 pierces through elastic sealing cover 1 under external force to be communicated with secondary cell inside and to form perforation 11 on elastic sealing cover 1, the inwall elasticity of perforation 11 is pressed against the outer wall of hollow needle head 21 and is formed between the inwall of perforation 11 and the outer wall of hollow needle head 21 and seals, and electrolyte injects in secondary cell B via outside mechanism for filling liquid (not shown), barrel 22 and hollow needle head 21; After fluid injection completes, extract hollow needle head 21, perforation 11 is closed disappears to form self sealss at punch position P place.When secondary cell changes into, barrel 22 is communicated in outside atmosphere or extraction sector (not shown), hollow needle head 21 pierces through elastic sealing cover 1 under external force to be communicated with secondary cell inside and to form perforation 11 on elastic sealing cover 1, the inwall elasticity of perforation 11 is pressed against the outer wall of hollow needle head 21 and is formed between the inwall of perforation 11 and the outer wall of hollow needle head 21 and seals, and secondary cell B is internalized into the gas of generation via hollow needle head 21 and barrel 22 externally air or the discharge of extraction sector (not shown); After having changed into, extract hollow needle head 21, perforation 11 is closed disappears to form self sealss at punch position P place.Here remark additionally, the closed degree disappeared of perforation 11 with do not make electrolyte from secondary cell B to outward leakage and do not make gas in secondary cell B to outward leakage.
According in secondary cell liquid injection hole assembly of the present utility model, elastic sealing cover 1 is sealingly fastened in secondary cell liquid injection hole H, ensures good sealing, avoids the leakage of electrolyte or secondary cell internal gas, when the operation such as carry out secondary cell fluid injection or change into, only the hollow needle head 21 of syringe 2 need be pierced through elastic sealing cover 1 be communicated with secondary cell inside and on elastic sealing cover 1, form perforation 11 and bore a hole 11 inwall elasticity be pressed against hollow needle head 21 outer wall and bore a hole 11 inwall and the outer wall of hollow needle head 21 between formed and seal, electrolyte or gas just can inject via hollow needle head 21 and barrel 22 or discharge, fluid injection or after having changed into, after extracting hollow needle head 21, perforation 11 is closed disappears to form self sealss at punch position P place, thus without the need to the such accurate location of prior art and without the need to using disposable rubber seal to follow closely 4, rubber seal nail 4 is repeatedly plugged without the need to using special equipment, simplify production process, enhance productivity, reduce production cost.
According in secondary cell liquid injection hole assembly of the present utility model, the material of described elastic sealing cover 1 can be neoprene, natural rubber, nitrile rubber, silica gel or ethylene propylene diene rubber.
According in secondary cell liquid injection hole assembly of the present utility model, the shape of described liquid injection hole H can be circle, square, oval, stairstepping or track type.
According in secondary cell liquid injection hole assembly of the present utility model, the shape of described elastic sealing cover 1 and the form fit of liquid injection hole H.
According in secondary cell liquid injection hole assembly of the present utility model, with reference to Fig. 6 and Fig. 7, described elastic sealing cover 1 is coordinated by machinery or glue bonding way is fixed on liquid injection hole H.Ensureing the sealing of elastic sealing cover 1 and liquid injection hole H and fastening, preventing deviating from of when pulling out syringe 2 elastic sealing cover 1.
According in secondary cell liquid injection hole assembly of the present utility model, the material of syringe 2 can be stainless steel or plastics.
According in secondary cell liquid injection hole assembly of the present utility model, with reference to Fig. 5 to Fig. 7, elastic sealing cover 1 has the recess 12 towards secondary cell inside opening.Recess 12 be arranged so that hollow needle head 21 more easily pierces through elastic sealing cover 1.
According in secondary cell liquid injection hole assembly of the present utility model, with reference to Fig. 7, fluid injection and when changing into, hollow needle head 21 pierces through elastic sealing cover 1 from recess 12.Recess 12 is larger than the size of hollow needle head 21, can reduce like this for the alignment degree requirement of syringe 2 with elastic sealing cover 1, thus can reduce for equipment precision requirement, simplify relevant device.
Claims (7)
1. a secondary cell liquid injection hole assembly, is characterized in that, comprising:
Elastic sealing cover (1), is sealingly fastened in secondary cell liquid injection hole (H); And
Syringe (2), has hollow needle head (21) and is communicated in the barrel (22) of hollow needle head (21);
Wherein,
When hollow needle head (21) pierce through under external force elastic sealing cover (1) with is communicated with secondary cell inside and formed on elastic sealing cover (1) bore a hole (11) time, the inwall elasticity of (11) of boring a hole is pressed against the outer wall of hollow needle head (21) and is formed between the inwall of bore a hole (11) and the outer wall of hollow needle head (21) and seals;
When hollow needle head (21) is under external force from after elastic sealing cover (1) is extracted, perforation (11) is closed disappears to form self sealss at punch position (P) place.
2. secondary cell liquid injection hole assembly according to claim 1, is characterized in that, the material of described elastic sealing cover (1) is neoprene, natural rubber, nitrile rubber, silica gel or ethylene propylene diene rubber.
3. secondary cell liquid injection hole assembly according to claim 1, is characterized in that, the shape of described liquid injection hole (H) is circular, square, oval, stairstepping or track type.
4. secondary cell liquid injection hole assembly according to claim 3, is characterized in that, the shape of described elastic sealing cover (1) and the form fit of liquid injection hole (H).
5. secondary cell liquid injection hole assembly according to claim 1, is characterized in that, described elastic sealing cover (1) is coordinated by machinery or glue bonding way is fixed on liquid injection hole (H).
6. secondary cell liquid injection hole assembly according to claim 1, is characterized in that, the material of syringe (2) is stainless steel or plastics.
7. secondary cell liquid injection hole assembly according to claim 1, is characterized in that, elastic sealing cover (1) has the recess (12) towards secondary cell inside opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524709.1U CN204809307U (en) | 2015-07-20 | 2015-07-20 | Secondary cell annotates liquid hole and uses subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524709.1U CN204809307U (en) | 2015-07-20 | 2015-07-20 | Secondary cell annotates liquid hole and uses subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204809307U true CN204809307U (en) | 2015-11-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520524709.1U Active CN204809307U (en) | 2015-07-20 | 2015-07-20 | Secondary cell annotates liquid hole and uses subassembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN204809307U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016221539A1 (en) | 2016-11-03 | 2018-05-03 | Robert Bosch Gmbh | battery cell |
| CN108110189A (en) * | 2017-12-15 | 2018-06-01 | 中银（宁波）电池有限公司 | Maintainable alkaline zinc-manganese battery and maintenance method of alkaline zinc-manganese battery |
| CN108604662A (en) * | 2016-08-26 | 2018-09-28 | 株式会社Lg化学 | The method of secondary cell and electrolyte for supplementing secondary cell |
| CN110707281A (en) * | 2019-10-10 | 2020-01-17 | 江西赣锋电池科技有限公司 | Secondary cell top cap fluid infusion structure |
| CN111201633A (en) * | 2017-12-14 | 2020-05-26 | 株式会社Lg化学 | Method for manufacturing battery module |
| CN112599899A (en) * | 2020-12-15 | 2021-04-02 | 上海兰钧新能源科技有限公司 | Top cover structure and battery |
| CN113394524A (en) * | 2021-06-30 | 2021-09-14 | 苏州清陶新能源科技有限公司 | Sealing assembly and battery negative pressure formation and secondary liquid supplementing method |
| CN113437452A (en) * | 2021-07-21 | 2021-09-24 | 珠海冠宇电池股份有限公司 | Battery electrolyte injection assembly and electrolyte injection system |
| CN113725566A (en) * | 2021-09-02 | 2021-11-30 | 深圳市精朗联合科技有限公司 | Efficient battery production process capable of achieving wiping-free liquid injection port and directly welding sealing sheet |
| CN114335821A (en) * | 2022-01-05 | 2022-04-12 | 宁波容百新能源科技股份有限公司 | Soft-packaged electrical core shell and soft-packaged electrical core |
| CN115275542A (en) * | 2022-08-17 | 2022-11-01 | 厦门海辰储能科技股份有限公司 | Battery end cover assembly, battery pack and electric equipment |
-
2015
- 2015-07-20 CN CN201520524709.1U patent/CN204809307U/en active Active
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108604662A (en) * | 2016-08-26 | 2018-09-28 | 株式会社Lg化学 | The method of secondary cell and electrolyte for supplementing secondary cell |
| US10944084B2 (en) | 2016-08-26 | 2021-03-09 | Lg Chem, Ltd. | Secondary battery and method for supplementing electrolyte of secondary battery |
| CN108604662B (en) * | 2016-08-26 | 2021-03-16 | 株式会社Lg化学 | Secondary battery and method for replenishing electrolyte of secondary battery |
| DE102016221539A1 (en) | 2016-11-03 | 2018-05-03 | Robert Bosch Gmbh | battery cell |
| CN111201633A (en) * | 2017-12-14 | 2020-05-26 | 株式会社Lg化学 | Method for manufacturing battery module |
| US11342629B2 (en) | 2017-12-14 | 2022-05-24 | Lg Chem, Ltd. | Method for manufacturing battery module |
| CN108110189A (en) * | 2017-12-15 | 2018-06-01 | 中银（宁波）电池有限公司 | Maintainable alkaline zinc-manganese battery and maintenance method of alkaline zinc-manganese battery |
| CN110707281B (en) * | 2019-10-10 | 2021-12-14 | 江西赣锋电池科技有限公司 | Secondary cell top cap fluid infusion structure |
| CN110707281A (en) * | 2019-10-10 | 2020-01-17 | 江西赣锋电池科技有限公司 | Secondary cell top cap fluid infusion structure |
| CN112599899A (en) * | 2020-12-15 | 2021-04-02 | 上海兰钧新能源科技有限公司 | Top cover structure and battery |
| CN113394524A (en) * | 2021-06-30 | 2021-09-14 | 苏州清陶新能源科技有限公司 | Sealing assembly and battery negative pressure formation and secondary liquid supplementing method |
| CN113394524B (en) * | 2021-06-30 | 2023-11-10 | 苏州清陶新能源科技有限公司 | Sealing assembly and battery negative pressure formation and secondary fluid infusion method |
| CN113437452A (en) * | 2021-07-21 | 2021-09-24 | 珠海冠宇电池股份有限公司 | Battery electrolyte injection assembly and electrolyte injection system |
| CN113437452B (en) * | 2021-07-21 | 2022-08-30 | 珠海冠宇电池股份有限公司 | Battery electrolyte injection assembly and electrolyte injection system |
| CN113725566A (en) * | 2021-09-02 | 2021-11-30 | 深圳市精朗联合科技有限公司 | Efficient battery production process capable of achieving wiping-free liquid injection port and directly welding sealing sheet |
| CN114335821A (en) * | 2022-01-05 | 2022-04-12 | 宁波容百新能源科技股份有限公司 | Soft-packaged electrical core shell and soft-packaged electrical core |
| CN114335821B (en) * | 2022-01-05 | 2024-02-09 | 宁波容百新能源科技股份有限公司 | Soft packet of electric core casing and soft packet of electric core |
| CN115275542A (en) * | 2022-08-17 | 2022-11-01 | 厦门海辰储能科技股份有限公司 | Battery end cover assembly, battery pack and electric equipment |
| CN115275542B (en) * | 2022-08-17 | 2023-09-22 | 厦门海辰储能科技股份有限公司 | Battery end cover assembly, battery pack and electric equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 352100 Jiaocheng District of Ningde City, Fujian Province Zhang Wan Zhen Xingang Road No. 1 Patentee after: Contemporary Amperex Technology Co.,Ltd. Address before: 352100 Jiaocheng District of Ningde City, Fujian Province Zhang Wan Zhen Xingang Road No. 1 West Building 1F- research Patentee before: CONTEMPORARY AMPEREX TECHNOLOGY Ltd. |