CN202165647U - Liquid-filling check valve and lithium battery liquid filling device - Google Patents
Liquid-filling check valve and lithium battery liquid filling device Download PDFInfo
- Publication number
- CN202165647U CN202165647U CN2011202513992U CN201120251399U CN202165647U CN 202165647 U CN202165647 U CN 202165647U CN 2011202513992 U CN2011202513992 U CN 2011202513992U CN 201120251399 U CN201120251399 U CN 201120251399U CN 202165647 U CN202165647 U CN 202165647U
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- China
- Prior art keywords
- fluid injection
- valve
- valve body
- way valve
- medium
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- Expired - Lifetime
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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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- Filling, Topping-Up Batteries (AREA)
Abstract
The utility model provides a liquid-filling check valve and a lithium battery liquid filling device, wherein the liquid filling check valve comprises a valve body, a nozzle base, a valve plug ball and a reset elastic piece, the valve body comprises an input end and an output end, a valve cavity is arranged in the valve body and comprises a medium input port and a medium output port which are respectively corresponding to the input end and the output end of the valve body, the valve plug ball and the reset elastic piece are arranged in the valve cavity, the nozzle base is fixedly connected with the output end of the valve body, one end of the valve plug ball props against the medium input port, the other end of the valve plug ball props against the medium output port by the reset elastic piece, and a sealing surface matched with the valve plug ball in a sealing manner is arranged on the inner wall of the medium input port. The valve plug ball is arranged in the check valve body and fixedly connected with a male joint by the reset elastic piece, and the valve plug ball is in hard match with the sealing surface on a female joint, so that the liquid-filling check valve has a good sealing effect and overcomes the defect of leakage caused by inaccurate guidance of a guide rod in the prior art.
Description
Technical field
The utility model relates to the lithium cell field, is specifically related to a kind of fluid injection one-way valve and lithium battery priming device.
Background technique
The effect of lithium ion battery priming device is exactly through a kind of topping-up pump of precision electrolytic solution to be squeezed into fluid injection actuator from liquid container; What the exporting to of topping-up pump adopted between the actuator is that long fluid injection pipeline is carried; Because factors such as vibrations the during motion of fluid injection pipeline or sealing; Can cause dropping liquid or bubble to be back in the fluid injection pipeline, can cause the electrolyte contamination battery like this and owing to existing bubble to cause problems such as reservoir quantity is inaccurate in the electrolytic solution.In order to address these problems, normally the end at the fluid injection pipeline increases an one-way valve.
The spool of the one-way valve that existing lithium cell field is adopted is generally guide rod, and the bottom of guide rod is equipped with O type circle in order to sealing.The subject matter that this structure exists is, when guide rod in valve body during reseting movement, one-way valve is not because the motion guide of guide rod will definitely produce leakage.And O type circle is because of the compression that takes regular exercise, and sealing effect will reduce gradually.
The model utility content
The technical problem underlying that the utility model will solve is that a kind of fluid injection one-way valve and lithium battery priming device that can improve sealing effect is provided.
For solving the problems of the technologies described above, the utility model provides a kind of fluid injection one-way valve, comprises valve body; Said valve body comprises input end and output terminal; Said valve inner is provided with valve pocket, and said valve pocket comprises and the input end and the corresponding respectively medium inlet opening and the medium delivery outlet of output terminal of said valve body, also comprises nozzle base, is arranged on spool ball and return springs in the said valve pocket; Said nozzle base is fixedly connected on the output terminal of said valve body; Said spool ball one end props up said medium inlet opening, and the other end props up said medium delivery outlet through said elastic reset spare, and the inwall of said medium inlet opening is provided with the sealing surface that is sealed and matched with said spool ball.
Further, said valve body comprises female head and public head fastening and that be tightly connected for dividing body structure, and said medium inlet opening is arranged on said female head, and said medium delivery outlet is arranged on the said public head.
Further, the output terminal of said valve body also is positioned on the said public head, and said nozzle base is realized fixing with said public head through being threaded.
Preferably, said public head and female head thread matching and fixing, and on the installation end face between the two seal ring is set.
Further, the input end of said valve body is positioned on said female head, and said input end is provided with and is used for the direct outside thread that is connected with the fluid injection pipeline.
Preferably, said sealing surface is the conical surface.
Preferably, said return springs is a pressure spring.
Preferably, said spool ball is the ceramic valve core ball.
The utility model also provides a kind of lithium battery priming device; Comprise topping-up pump, fluid injection pipeline and fluid injection actuator; Said fluid injection pipeline is connected between said topping-up pump and the fluid injection actuator; Also comprise above-mentioned fluid injection one-way valve, said fluid injection one-way valve is connected between said fluid injection pipeline and the fluid injection actuator.
The beneficial effect of the utility model is:
1. in the valve body of this one-way valve the spool ball is set; Spool ball one end props up the medium inlet opening of valve pocket; The other end props up the medium delivery outlet of valve pocket through return springs, this return springs drive with accurate Pilot poppet ball in the valve pocket to-and-fro motion, the spool ball is sealed and matched with sealing surface on female head; Play good sealing effect, overcome in the existing technology because the inaccurate caused leakage problem of guide rod guiding.
2. public head and female split design in this one-way valve, and fixing through being threaded are provided with seal ring at the installation end face of public head and female head, so the valve body convenient processing and manufacture, and sealing effect is good between public head and the mother.
3. the input end of female head is provided with the outside thread that directly is connected with pipeline; Saved transit joint of the prior art, not only provided cost savings, and compared than existing technology; Avoided because the bad leakage phenomenon that causes of transit joint sealing effect improves the reliability and stability of fluid injection.
Description of drawings
Fig. 1 is a kind of fluid injection one-way valve of the utility model embodiment's a sectional view;
Fig. 2 is a kind of lithium battery priming device structure diagram of the utility model.
Embodiment
Combine accompanying drawing that the utility model is done further explain through embodiment below.
Embodiment one:
Please refer to Fig. 1; A kind of fluid injection one-way valve of the utility model comprises valve body, and valve body comprises that input end and output terminal valve inner are provided with valve pocket; Valve pocket comprises input end and corresponding respectively medium inlet opening and the medium delivery outlet of output terminal with valve body; Also comprise nozzle base 8, be arranged on spool ball 3 and return springs in the valve pocket, nozzle base 8 is fixedly connected on the output terminal of valve body, and spool ball 3 one ends prop up the medium inlet opening; The other end props up the medium delivery outlet through elastic reset spare, and the inwall of medium inlet opening is provided with the sealing surface that is sealed and matched with spool ball 3.
Further, valve body for divide body structure, comprise the mother that is fastenedly connected 2 with public 6, enclose closeding valve cavity with public 6 for female 2, medium inlet opening and input end are arranged on female 2, medium delivery outlet and output terminal are arranged on the public affairs 6.For easy for installation and sealing effect are good, public 6 is adopted and is threaded with female 2, and at the installation end face O type circle 5 is set and seals.
This spool ball 3 is a ceramic material; The inwall of medium inlet opening is provided with the sealing surface that is sealed and matched with spool ball 3, and sealing face exterior contour is realized excellent sealing with spool ball 3 through cooperating firmly, and the sealing face is preferably the conical surface; Also can use other sealing surfaces to replace, like the arc sealing surface etc.
This return springs is used for driving with Pilot poppet ball 3 and in valve pocket, moves reciprocatingly, and this return springs is preferably pressure spring 4, and these pressure spring 4 upper ends and spool ball 3 bottoms are fixed, and the inwall of medium delivery outlet is fixed on lower end and the public affairs 6.Realize the purpose of the utility model, the pressure of pressure spring 4 should be less than the pressure of topping-up pump outlet, and it is fixed that the line of pressure spring 4 footpath can be come according to actual conditions.
This one-way valve can directly be connected with pipeline, saves transit joint of the prior art, not only practices thrift cost, and can avoid owing to the bad leakage phenomenon that causes of transit joint sealing effect.Specifically the method for realization is, offers the outside thread that cooperates with the fluid injection pipeline in female 2 the input end outside, is fixedly connected with said pipeline through outside thread.
The working procedure of the utility model lithium cell fluid injection one-way valve is following:
When female 2 of valve body squeezed into electrolytic solution 1 by topping-up pump, overcome the elastic force of pressure spring 4, promote spool ball 3 and move down, this moment valve opening, electrolytic solution 1 flows into from the medium inlet opening and flows out from the medium delivery outlet; When the pressure of medium inlet opening place electrolytic solution 1 disappears, reseting movement takes place down in pressure spring 4 effects in spool ball 3, moves up, and contacts with the inwall of the medium inlet opening of female 2 of valve body, and valve closing is in prevention reflux liquid 7 return pipelines.
The valve inner sealing of this one-way valve mainly is that ceramic valve core ball 3 is controlled with female 2 accuracy of manufacturing, and 5 sealings of O type circle are leaned in outside seal, so medium can not leak outside, also do not understand interior leakage.
Please refer to Fig. 2; The utility model also provides a kind of lithium battery priming device; Comprise topping-up pump 13, fluid injection pipeline 12 and fluid injection actuator 10, topping-up pump 13 links to each other with the liquid container 14 of outside, and fluid injection pipeline 12 is connected between topping-up pump 13 and the fluid injection actuator 10; Also comprise above-mentioned fluid injection one-way valve 11, it is connected between fluid injection pipeline 12 and the fluid injection execution architecture 10.
The utility model is applicable to the liquid injection process of various lithium celies such as lithium ion battery.
Above content is the further explain that combines concrete mode of execution that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
Claims (9)
1. a fluid injection one-way valve comprises valve body, and said valve body comprises input end and output terminal; Said valve inner is provided with valve pocket; Said valve pocket comprises and the input end and the corresponding respectively medium inlet opening and the medium delivery outlet of output terminal of said valve body, it is characterized in that, also comprises nozzle base, is arranged on spool ball and return springs in the said valve pocket; Said nozzle base is fixedly connected on the output terminal of said valve body; Said spool ball one end props up said medium inlet opening, and the other end props up said medium delivery outlet through said return springs, and the inwall of said medium inlet opening is provided with the sealing surface that is sealed and matched with said spool ball.
2. fluid injection one-way valve as claimed in claim 1 is characterized in that, said valve body comprises female head and public head fastening and that be tightly connected for dividing body structure, and said medium inlet opening is arranged on said female head, and said medium delivery outlet is arranged on the said public head.
3. fluid injection one-way valve as claimed in claim 2 is characterized in that, the output terminal of said valve body also is positioned on the said public head, and said nozzle base is realized fixing with said public head through being threaded.
4. fluid injection one-way valve as claimed in claim 2 is characterized in that, said public head and female head thread matching and fixing, and on the installation end face between the two seal ring is set.
5. fluid injection one-way valve as claimed in claim 4 is characterized in that, the input end of said valve body is positioned on said female head, and said input end is provided with and is used for the direct outside thread that is connected with the fluid injection pipeline.
6. fluid injection one-way valve as claimed in claim 1 is characterized in that, said sealing surface is the conical surface.
7. fluid injection one-way valve as claimed in claim 1 is characterized in that, said return springs is a pressure spring.
8. like each described fluid injection one-way valve of claim 1-7, it is characterized in that said spool ball is the ceramic valve core ball.
9. lithium battery priming device; Comprise topping-up pump, fluid injection pipeline and fluid injection actuator; Said fluid injection pipeline is connected between said topping-up pump and the fluid injection actuator; It is characterized in that also comprise each described fluid injection one-way valve of claim 1-7, said fluid injection one-way valve is connected between said fluid injection pipeline and the fluid injection actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202513992U CN202165647U (en) | 2011-07-15 | 2011-07-15 | Liquid-filling check valve and lithium battery liquid filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202513992U CN202165647U (en) | 2011-07-15 | 2011-07-15 | Liquid-filling check valve and lithium battery liquid filling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165647U true CN202165647U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202513992U Expired - Lifetime CN202165647U (en) | 2011-07-15 | 2011-07-15 | Liquid-filling check valve and lithium battery liquid filling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165647U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299274A (en) * | 2014-06-09 | 2016-02-03 | 芜湖德孚转向系统有限公司 | Novel safety valve |
| CN106621026A (en) * | 2016-12-29 | 2017-05-10 | 四川南格尔生物科技有限公司 | Non-return needle connector |
| CN107084264A (en) * | 2017-05-18 | 2017-08-22 | 长沙执先智量科技股份有限公司 | A kind of sanitation-grade check valve |
| CN107579198A (en) * | 2017-08-30 | 2018-01-12 | 安徽环鑫电子有限公司 | A kind of capping structure with liquid injection hole explosion-proof valve |
| CN109390503A (en) * | 2018-11-15 | 2019-02-26 | 河北银隆新能源有限公司 | A kind of battery liquid-filling mouth structure and battery |
| CN112879699A (en) * | 2021-03-23 | 2021-06-01 | 东莞市创英机械设备有限公司 | Lithium battery vacuum liquid injection precision needle valve |
-
2011
- 2011-07-15 CN CN2011202513992U patent/CN202165647U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299274A (en) * | 2014-06-09 | 2016-02-03 | 芜湖德孚转向系统有限公司 | Novel safety valve |
| CN106621026A (en) * | 2016-12-29 | 2017-05-10 | 四川南格尔生物科技有限公司 | Non-return needle connector |
| CN106621026B (en) * | 2016-12-29 | 2020-03-27 | 四川南格尔生物科技有限公司 | Non-return needle connector |
| CN107084264A (en) * | 2017-05-18 | 2017-08-22 | 长沙执先智量科技股份有限公司 | A kind of sanitation-grade check valve |
| CN107579198A (en) * | 2017-08-30 | 2018-01-12 | 安徽环鑫电子有限公司 | A kind of capping structure with liquid injection hole explosion-proof valve |
| CN109390503A (en) * | 2018-11-15 | 2019-02-26 | 河北银隆新能源有限公司 | A kind of battery liquid-filling mouth structure and battery |
| CN112879699A (en) * | 2021-03-23 | 2021-06-01 | 东莞市创英机械设备有限公司 | Lithium battery vacuum liquid injection precision needle valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |