CN100541868C - Battery liquid-filling pin and adopt the battery liquid-filling device of this fluid injection pin - Google Patents

Battery liquid-filling pin and adopt the battery liquid-filling device of this fluid injection pin Download PDF

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Publication number
CN100541868C
CN100541868C CNB2006100821850A CN200610082185A CN100541868C CN 100541868 C CN100541868 C CN 100541868C CN B2006100821850 A CNB2006100821850 A CN B2006100821850A CN 200610082185 A CN200610082185 A CN 200610082185A CN 100541868 C CN100541868 C CN 100541868C
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China
Prior art keywords
inner chamber
fluid injection
vacuum suction
filling
battery liquid
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CNB2006100821850A
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CN101075668A (en
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郭彦文
杨海涛
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Zhengzhou Bak Battery Co Ltd
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Shenzhen Bak Battery Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The present invention relates to a kind of battery liquid-filling pin and adopt the priming device of this fluid injection pin, the syringe needle inside of described fluid injection pin is provided with inner chamber, in inner chamber, be inserted with the vacuum suction spindle that cooperates with the inner chamber tight seal, also be provided with the steel ball that can cooperate in the described inner chamber, and described vacuum suction spindle port diameter is less than diameter of the steel ball with vacuum suction spindle port tight seal; One sidewall of described syringe needle inner chamber is provided with pit, and the syringe needle outer wall place corresponding with pit is set is provided with an electromagnet.Battery liquid-filling apparatus structure of the present invention is simple, is convenient to safeguard that failure rate is low; The priming device vacuum is few where, is convenient to accurate fluid injection, improves the fluid injection precision; Adopt this priming device can realize disposable fluid injection, need not repeatedly vacuumize, fluid injection several times, thereby avoided the situation of electrolyte suck-back to take place, further guaranteed the accuracy of fluid injection.

Description

Battery liquid-filling pin and adopt the battery liquid-filling device of this fluid injection pin
Technical field
The present invention relates to a kind of battery process equipment, relate in particular to a kind of battery liquid-filling pin and adopt the battery liquid-filling device of this fluid injection pin.
Background technology
The liquid lithium ion secondary cell is being represented the advanced level of current chemical power source development as the new green environment protection battery.Because lithium ion battery has advantages such as high-energy-density, long circulation life, memory-less effect, safety nuisance free and quick charge and discharge, be widely used in the electronic devices such as video camera, notebook computer at present, and progressively expanded range of application to fields such as electric bicycle, electric automobiles.
Not only to the positive and negative electrode material of battery, the structure of electrolyte and battery has been carried out big quantity research to the various countries researcher, and the liquid-injection equipment of lithium battery has been carried out a large amount of improvement.As shown in Figure 1, be present widely used rotating disc type priming device, vacuumizing with the fluid injection part of this device finished in the different position of rotating disk respectively.The fluid injection pin partly comprises fluid injection syringe needle 1, syringe 2 and cylinder seat 3 in the device.Earlier vacuumizing the position, by the height above sea level pump quantitative electrolyte is squeezed into syringe 2 then during fluid injection, make electrolyte inject inside battery by the air extraction of vacuum suction spindle 4 among Fig. 1 with syringe 2 and inside battery.
When adopting the said apparatus fluid injection, because the sealing property requirement is stronger, the careless slightly reservoir quantity that will cause is inaccurate, exists the space of vacuum bigger in the device simultaneously, is unfavorable for improving the accuracy of reservoir quantity.In addition, this device fluid injection is fluid injection several times, is not disposable required electrolyte to be injected in the battery, and the suck-back phenomenon takes place easily.This apparatus structure complexity, troublesome poeration, fluid injection efficient is not high, and maintenance of equipment rate height.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of simple in structure, accurate battery liquid-filling pin of fluid injection.
Another technical problem to be solved by this invention is to provide a kind of battery liquid-filling device that adopts above-mentioned fluid injection pin.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of battery liquid-filling pin is provided, it comprises syringe needle, described syringe needle inside is provided with inner chamber, in inner chamber, be inserted with the vacuum suction spindle that cooperates with the inner chamber tight seal, also be provided with the steel ball that can cooperate in the described inner chamber, and described vacuum suction spindle port diameter is less than diameter of the steel ball with vacuum suction spindle port tight seal; One sidewall of described syringe needle inner chamber is provided with pit, and the syringe needle outer wall place corresponding with pit is set is provided with an electromagnet.
More specifically, described inner chamber is funnel-form.
More specifically, described vacuum suction spindle and inner chamber position contacting place are provided with the sealing sealing ring.
More specifically, described pit is hemisphere, and it is arranged on intracavity bottom, and the pit radius is greater than the steel ball radius.
More specifically, described vacuum suction spindle port is provided with sealing ring.
The present invention also provides a kind of battery liquid-filling device that adopts above-mentioned battery liquid-filling pin, it has vacuum device and mechanism for filling liquid, described vacuum device has the vacuum suction spindle, described mechanism for filling liquid has the fluid injection pin, described fluid injection needle set has syringe needle, described syringe needle inside is provided with inner chamber, described vacuum suction spindle is inserted in the inner chamber, and cooperate with the inner chamber tight seal, also be provided with the steel ball that can cooperate in the described inner chamber, and described vacuum suction spindle port diameter is less than diameter of the steel ball with vacuum suction spindle port tight seal; One sidewall of described syringe needle inner chamber is provided with pit, and the syringe needle outer wall place corresponding with pit is set is provided with an electromagnet.
Compare with existing battery liquid-filling device, the present invention has with beneficial effect: battery liquid-filling apparatus structure of the present invention is simple, is convenient to safeguard that failure rate is low; The priming device vacuum is few where, is convenient to accurate fluid injection, improves the fluid injection precision; Adopt this battery liquid-filling device can realize disposable fluid injection, need not repeatedly vacuumize, fluid injection several times, thereby avoided the situation of electrolyte suck-back to take place, further guaranteed the accuracy of fluid injection.
Description of drawings
Fig. 1 is the generalized section of fluid injection pin part in the priming device of prior art.
Fig. 2 is the cross-sectional view of a preferred embodiment of battery liquid-filling pin among the present invention;
Fig. 3 to Fig. 5 is a working state schematic representation embodiment illustrated in fig. 2.
Embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Liquid-filling machine for battery of the present invention has vacuum device and mechanism for filling liquid, and wherein, this vacuum device has the vacuum suction spindle, and this mechanism for filling liquid has the fluid injection pin.Seeing also shown in Figure 2ly, is a preferred embodiment of battery liquid-filling pin among the present invention, and this battery liquid-filling needle set has syringe needle 20, and described syringe needle 20 is provided with and roughly is funnelform inner chamber.The one vacuum suction spindle 21 that is hollow tubular is inserted in the inner chamber of syringe needle 20, and cooperates with the inner chamber neck tight seal of syringe needle 20, is provided with sealing ring 23 in the inner chamber neck of its contact.Be provided with a steel ball 22 in the inner chamber of syringe needle 20, its diameter is provided with sealing ring 24 greater than the diameter of vacuum suction spindle 21 ports in vacuum suction spindle 21 ports, and steel ball 22 can be cooperated with vacuum suction spindle 21 port tight seals.In addition, also be provided with a hemispherical dimples 25 in intracavity bottom one side of above-mentioned syringe needle 20, the radius of this hemispherical dimples 25 is greater than the radius of steel ball 22.The syringe needle 20 outer wall places corresponding with hemispherical dimples 25 is set are provided with an electromagnet 26, are used to control the position of steel ball 22.
Please together consult Fig. 3 to Fig. 5, during work, at first fluid injection syringe needle 20 terminal insertions are treated in the liquid injection hole of intercell 30 that start electromagnet 26, the magnetic force of electromagnet 26 is transferred to hemispherical dimples 25 places with steel ball 22; Start vacuum extractor, vacuum suction spindle 21 is evacuated syringe needle 20 inner chamber necks and battery 30 inside; Simultaneously, height above sea level pump (not shown) pumps into a certain amount of electrolyte (as shown in Figure 3) to the inner chamber first half of syringe needle 20; After the inner chamber neck of syringe needle 20 and battery 30 inside are evacuated, close electromagnet 26, steel ball 22 leaves pit 25, with vacuum suction spindle 21 port sealings (as shown in Figure 4); Vacuum suction spindle 21 is mentioned, and the electrolyte in syringe needle 20 inner chambers is because secondary effect of pressing is inhaled into battery 30 interior (as shown in Figure 5).

Claims (10)

1, a kind of battery liquid-filling pin, comprise syringe needle, it is characterized in that: described syringe needle inside is provided with inner chamber, in inner chamber, be inserted with the vacuum suction spindle that cooperates with the inner chamber tight seal, also be provided with the steel ball that can cooperate in the described inner chamber, and described vacuum suction spindle port diameter is less than diameter of the steel ball with vacuum suction spindle port tight seal; One sidewall of described syringe needle inner chamber is provided with pit, and the syringe needle outer wall place corresponding with pit is set is provided with an electromagnet.
2, battery liquid-filling pin as claimed in claim 1, it is characterized in that: described inner chamber is funnel-form.
3, battery liquid-filling pin as claimed in claim 1 is characterized in that: described vacuum suction spindle and inner chamber position contacting place are provided with sealing ring.
4, battery liquid-filling pin as claimed in claim 1 or 2, it is characterized in that: described pit is hemisphere, and it is arranged on intracavity bottom, and the pit radius is greater than the steel ball radius.
5, battery liquid-filling pin as claimed in claim 1 is characterized in that: described vacuum suction spindle port is provided with sealing ring.
6, a kind of battery liquid-filling device, have vacuum device and mechanism for filling liquid, described vacuum device has the vacuum suction spindle, described mechanism for filling liquid has the fluid injection pin, and described fluid injection needle set has syringe needle, it is characterized in that: described syringe needle inside is provided with inner chamber, described vacuum suction spindle is inserted in the inner chamber, and cooperate with the inner chamber tight seal, also be provided with the steel ball that can cooperate in the described inner chamber, and described vacuum suction spindle port diameter is less than diameter of the steel ball with vacuum suction spindle port tight seal; One sidewall of described syringe needle inner chamber is provided with pit, and the syringe needle outer wall place corresponding with pit is set is provided with an electromagnet.
7, battery liquid-filling device as claimed in claim 6, it is characterized in that: described inner chamber is funnel-form.
8, battery liquid-filling device as claimed in claim 6 is characterized in that: described vacuum suction spindle and inner chamber position contacting place are provided with sealing ring.
9, as claim 6 or 7 described battery liquid-filling devices, it is characterized in that: described pit is hemisphere, and it is arranged on intracavity bottom, and the pit radius is greater than the steel ball radius.
10, battery liquid-filling device as claimed in claim 6 is characterized in that: described vacuum suction spindle port is provided with sealing ring.
CNB2006100821850A 2006-05-20 2006-05-20 Battery liquid-filling pin and adopt the battery liquid-filling device of this fluid injection pin Active CN100541868C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006100821850A CN100541868C (en) 2006-05-20 2006-05-20 Battery liquid-filling pin and adopt the battery liquid-filling device of this fluid injection pin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006100821850A CN100541868C (en) 2006-05-20 2006-05-20 Battery liquid-filling pin and adopt the battery liquid-filling device of this fluid injection pin

Publications (2)

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CN101075668A CN101075668A (en) 2007-11-21
CN100541868C true CN100541868C (en) 2009-09-16

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102306741B (en) * 2011-08-18 2013-08-28 江门三捷电池实业有限公司 Injection method for battery electrolyte
JP5906935B2 (en) * 2012-05-15 2016-04-20 株式会社島津製作所 Needle and needle port connection structure
CN114069168B (en) * 2021-10-29 2023-08-01 惠州锂威新能源科技有限公司 Lithium battery liquid injection hole structure and liquid injection method thereof

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Effective date of registration: 20161017

Address after: An Zhen Zhongmu County 451470 Henan city of Zhengzhou Province Liu Zheng Qiao Village

Patentee after: ZHENGZHOU BAK BATTERY Co.,Ltd.

Address before: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119

Patentee before: SHENZHEN BAK BATTERY Co.,Ltd.

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