CN204008046U - Lithium battery fluid injection air-tightness detection device - Google Patents

Lithium battery fluid injection air-tightness detection device Download PDF

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Publication number
CN204008046U
CN204008046U CN201420480547.1U CN201420480547U CN204008046U CN 204008046 U CN204008046 U CN 204008046U CN 201420480547 U CN201420480547 U CN 201420480547U CN 204008046 U CN204008046 U CN 204008046U
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CN
China
Prior art keywords
interface
lithium battery
fluid injection
platform
vacuum
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.)
Expired - Fee Related
Application number
CN201420480547.1U
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Chinese (zh)
Inventor
谭彬
邓凌峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGSHA SAIWEI ENERGY TECHNOLOGY Co Ltd
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CHANGSHA SAIWEI ENERGY TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
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Priority to CN201420480547.1U priority Critical patent/CN204008046U/en
Application granted granted Critical
Publication of CN204008046U publication Critical patent/CN204008046U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

Lithium battery fluid injection air-tightness detection device, comprises platform, and the surface of described platform is provided with locating slot, the periphery of described locating slot is provided with airtight cover body, the upper surface of described cover body is provided with KF interface and CF interface, described KF interface Bonding pressure sensor, and described CF interface connects vacuum valve; One side of described platform is provided with vacuum pump, and described vacuum pump connects the side interface of vacuum valve by pipeline; The opposite side of described platform is provided with electric cabinet, and the surface of electric cabinet is provided with pressure sensor interface, and electric cabinet inside is provided with control circuit.The utility model is simple to operate, can realize the automatic acquisition to the bubble-tight automatic detection of system and vacuum tightness, has reduced operating personnel's workload, has improved detection efficiency.

Description

Lithium battery fluid injection air-tightness detection device
Technical field
The utility model relates to lithium battery detection field, particularly a kind of lithium battery fluid injection air-tightness detection device.
Background technology
In lithium battery industry, serious consequence that product poor sealing can cause that battery performance degradation, solution leakage, battery bulging are even exploded etc., causes product image to be badly damaged, so the impermeability of lithium battery detects most important.Conventionally the detection of the impermeability of lithium battery is to carry out between battery seal and battery liquid-filling operation.While especially adopting the method for vacuum suck-back to carry out fluid injection, more need to detect the sealing between lithium battery and closed chamber, air tight when guaranteeing to vacuumize, guarantee the condition of high vacuum degree in closed chamber.
Existing lithium battery air-tightness detection method is first in the liquid injection hole of detected battery, to beat malleation, then at the manual suds of smearing in the outside of detected battery container, observes whether bubbling of battery surface, if there is bubbling, just illustrates that lithium battery leaks gas; Yet this detection method complex operation, detection efficiency is low, has increased operating personnel's labour intensity, and is not suitable for the impermeability detection of vacuum inverse inhalation type fluid injection.
Utility model content
The purpose of this utility model is overcome the above-mentioned deficiency of prior art and provide a kind of simple to operate, the lithium battery fluid injection air-tightness detection device that detection efficiency is high.
The technical solution of the utility model is: lithium battery fluid injection air-tightness detection device, comprise platform, the surface of described platform is provided with locating slot, the periphery of described locating slot is provided with airtight cover body, the upper surface of described cover body is provided with KF interface and CF interface, described KF interface Bonding pressure sensor, described CF interface connects vacuum valve; One side of described platform is provided with vacuum pump, and described vacuum pump connects the side interface of vacuum valve by pipeline; The opposite side of described platform is provided with electric cabinet, and the surface of electric cabinet is provided with pressure sensor interface, and electric cabinet inside is provided with control circuit.
Further, described vacuum pump connects the side interface of vacuum valve by corrugated stainless steel tubing.
Further, described pressure transducer is Capacitance Diaphragm Gauge.
Further, described vacuum valve is vacuum flapper valve.
Further, the size fit of the bulk of described locating slot and lithium battery.
Further, the periphery of described locating slot be provided with suitable with four limit sizes of cover body, for blocking the groove of cover body.
The utility model compared with prior art has following features:
(1) by design KF interface and CF interface on cover body, improved the pressure maintaining performance of whole closed system;
(2) by the pressure that utilizes pressure transducer to survey confined space, realize the automatic acquisition to the bubble-tight automatic detection of system and vacuum tightness under vacuum condition, reduced operating personnel's workload, improved detection efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the schematic perspective view of vacuum valve embodiment illustrated in fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, detailed structure of the present utility model is further described.
As depicted in figs. 1 and 2: lithium battery fluid injection air-tightness detection device, comprise platform 1, the surface of platform 1 is provided with locating slot 2, the periphery of locating slot 2 is provided with airtight cover body 3, the upper surface of cover body 3 is provided with KF interface 41 and CF interface 51, KF interface 41 Bonding pressure sensors 4, for measuring the vacuum tightness in airtight cover body 3; CF interface 51 connects vacuum valve 5, for the break-make of airtight cover body 3 gas circuits of control linkage; One side of platform 1 is provided with vacuum pump 6, and vacuum pump 6 connects the side interface of vacuum valve 5 by corrugated stainless steel tubing; The opposite side of platform 1 is provided with electric cabinet, and the surface of electric cabinet is provided with pressure sensor interface, and electric cabinet inside is provided with control circuit.
Pressure transducer 4 in the present embodiment is selected Capacitance Diaphragm Gauge, and the measuring accuracy of Capacitance Diaphragm Gauge is high, is not less than 0.1Pa; Vacuum valve 5 is selected vacuum flapper valve, is the vacuum valve that hand is opened/disconnected, and vacuum flapper valve is for the vacuum valve of open/disconnection of self-action, and impermeability is better; The size fit of the bulk of locating slot 2 and lithium battery, for the lithium battery that is fixedly clamped; The periphery of locating slot 2 is provided with the groove suitable with four limit sizes of cover body 3, for blocking cover body 3, for enhanced leaktightness, can between cover body 3 and groove, seal be set; The liquid injection hole surrounding of lithium battery is also provided with seal, so that further enhanced leaktightness.
The course of work of the present utility model is: lithium battery is placed in locating slot 2 and is fixedly clamped, cover body 3 is snapped in the groove of locating slot 2 peripheries fixingly, and seal by seal, make to form airtight cavity between cover body 3 and the liquid injection hole of lithium battery; Before the impermeability of device detects and to start, first confirm whether the pump oil of vacuum pump needs to change, and whether pipeline closely connects, whether valve is tightened and in closed condition; After having confirmed, opening power, the impermeability that starts to carry out device detects, and the setting value of take is carried out pressurize as standard, suppose that setting value is 100Pa, turn on vacuum valve 5, by vacuum pump 6, airtight cavity is evacuated to 100Pa, then tighten successively vacuum valve 5, close vacuum pump 6, pressurize ten minutes, if system leak rate is less than 1Pa/h, judge that impermeability is good, prepare to carry out lithium battery fluid injection; If system leak rate is more than or equal to 1Pa/h, judge that impermeability is bad, signal piping connects, and finds leakaging cause and processes.

Claims (6)

1. lithium battery fluid injection air-tightness detection device, it is characterized in that: comprise platform, the surface of described platform is provided with locating slot, the periphery of described locating slot is provided with airtight cover body, the upper surface of described cover body is provided with KF interface and CF interface, described KF interface Bonding pressure sensor, described CF interface connects vacuum valve; One side of described platform is provided with vacuum pump, and described vacuum pump connects the side interface of vacuum valve by pipeline; The opposite side of described platform is provided with electric cabinet, and the surface of electric cabinet is provided with pressure sensor interface, and electric cabinet inside is provided with control circuit.
2. lithium battery fluid injection air-tightness detection device according to claim 1, is characterized in that: described vacuum pump connects the side interface of vacuum valve by corrugated stainless steel tubing.
3. lithium battery fluid injection air-tightness detection device according to claim 1 and 2, is characterized in that: described pressure transducer is Capacitance Diaphragm Gauge.
4. lithium battery fluid injection air-tightness detection device according to claim 1 and 2, is characterized in that: described vacuum valve is vacuum flapper valve.
5. lithium battery fluid injection air-tightness detection device according to claim 1 and 2, is characterized in that: the size fit of the bulk of described locating slot and lithium battery.
6. lithium battery fluid injection air-tightness detection device according to claim 1 and 2, is characterized in that: the periphery of described locating slot be provided with suitable with four limit sizes of cover body, for blocking the groove of cover body.
CN201420480547.1U 2014-08-25 2014-08-25 Lithium battery fluid injection air-tightness detection device Expired - Fee Related CN204008046U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420480547.1U CN204008046U (en) 2014-08-25 2014-08-25 Lithium battery fluid injection air-tightness detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420480547.1U CN204008046U (en) 2014-08-25 2014-08-25 Lithium battery fluid injection air-tightness detection device

Publications (1)

Publication Number Publication Date
CN204008046U true CN204008046U (en) 2014-12-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420480547.1U Expired - Fee Related CN204008046U (en) 2014-08-25 2014-08-25 Lithium battery fluid injection air-tightness detection device

Country Status (1)

Country Link
CN (1) CN204008046U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105466641A (en) * 2015-10-15 2016-04-06 杭州伯坦科技工程有限公司 Battery leakage rapid detection device and detection method thereof
CN106197903A (en) * 2016-08-31 2016-12-07 无锡东恒新能源科技有限公司 A kind of lithium battery leak test plant
CN110061184A (en) * 2019-04-22 2019-07-26 无锡先导智能装备股份有限公司 Liquid-filling machine for battery and its explosion prevention controlling process, storage medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105466641A (en) * 2015-10-15 2016-04-06 杭州伯坦科技工程有限公司 Battery leakage rapid detection device and detection method thereof
CN106197903A (en) * 2016-08-31 2016-12-07 无锡东恒新能源科技有限公司 A kind of lithium battery leak test plant
CN110061184A (en) * 2019-04-22 2019-07-26 无锡先导智能装备股份有限公司 Liquid-filling machine for battery and its explosion prevention controlling process, storage medium

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141210

Termination date: 20200825