CN204461695U - A kind of feeder and lithium battery leak detection system - Google Patents
A kind of feeder and lithium battery leak detection system Download PDFInfo
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- CN204461695U CN204461695U CN201520154112.2U CN201520154112U CN204461695U CN 204461695 U CN204461695 U CN 204461695U CN 201520154112 U CN201520154112 U CN 201520154112U CN 204461695 U CN204461695 U CN 204461695U
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Abstract
The utility model relates to a kind of feeder and lithium battery leak detection system, belongs to technical field of lithium batteries.Lithium battery leak detection system comprises the mixing gas circuit be connected with lithium battery to be measured with feeder, mixing gas circuit is connected with the first branch road and the second branch road, and on the first branch road, string is provided with and shows leaking source, and on the second branch road, string is provided with dry air source of the gas.Lithium battery leak detection system feeder of the present utility model can provide the mixed gas of probe gas and dry air for lithium battery to be measured, saves the use amount of probe gas, saves leak detection cost on the whole.
Description
Technical field
The utility model relates to a kind of feeder and lithium battery leak detection system, belongs to technical field of lithium batteries.
Background technology
Lithium battery because operating voltage is high, energy density large, long service life, green non-pollution and there is good development prospect, along with the fast development of New Energy Industry, the fast development of particularly electric motor car, has higher requirement to the security of lithium battery.Owing to employing the electrode material containing lithium in lithium battery, this lithium-containing materials can cause its performance sharply to worsen after the oxygen run in air and water vapor, even blasts.Therefore, from secure context, the impermeability of lithium battery seems most important.
In actual production, for metal casing lithium ion battery, housing and cover plate are welded together by Laser Welding (LBW), this welding manner is quick, efficient, reliability is high, but in the batch production process of lithium battery, due to the reason of housing, cover plate, welding gear and frock, welding technology etc. aspect, there will be the situation of a small amount of rosin joint or pore, for this part battery, need detect rapidly and accurately and pick out, to avoid causing safety problem.
Because the requirement of lithium battery to Leak Detection is higher, the battery possessing minor leakage all needs accurately to detect, and therefore needs the checkout equipment that service precision is very high.Mass spectrum leak detection equipment is normally adopted to carry out the high precision leak detection of battery in prior art, its mass spectrum leak detection equipment generally comprises for placing the closed container of mesuring battary or chamber, with the helium mass analyzer of closed container or chamber, mesuring battary is communicated with providing the source of the gas of probe gas, and probe gas is generally helium." the space Ni-H cell sealing property method of inspection " (power technology, Zhao Hongwei etc., 2010 (10), 1046-1048) disclose a kind of similar helium mass spectrum leak detection system.But, the helium that helium mass spectrum leak detection equipment use of the prior art is pure, can overflow by battery container to allow helium, must ensure that the air pressure in battery container reaches certain value, this just substantially increases the use amount of helium, and the cost of helium is higher, thus add overall leak detection cost.And in the actual production of lithium battery, in a lot of situation, need to regulate and control the flow of probe gas, to be applicable to the battery leak detection needs of different model, different size.
Utility model content
The purpose of this utility model is to provide a kind of lithium battery leak detection system feeder that can reduce probe gas use amount.
The purpose of this utility model is also to provide a kind of lithium battery leak detection system.
In order to realize above object, the technical scheme of lithium battery leak detection system feeder of the present utility model is as follows:
A kind of lithium battery leak detection system feeder, comprises the mixing gas circuit be connected with lithium battery to be measured, and mixing gas circuit is connected with the first branch road and the second branch road, and on the first branch road, string is provided with and shows leaking source, and on the second branch road, string is provided with dry air source of the gas.
Described mixing gas circuit is provided with the mixture pressure table for detecting mixture pressure in mixing gas circuit.
Described second branch road is provided with the air manometer for dry air pressure in detection second branch road.
Described mixing gas circuit comprises gas mixer chamber, and the first branch road, the second branch road are all connected on described gas mixer chamber.
Describedly show that leaking source is helium source of the gas or argon gas source of the gas.
The technical scheme of lithium battery leak detection system of the present utility model is as follows:
A kind of lithium battery leak detection system, comprise the closed container for placing lithium battery to be measured and feeder, described feeder comprises the mixing gas circuit be connected with lithium battery to be measured, mixing gas circuit is connected with the first branch road and the second branch road, on first branch road, string is provided with and shows leaking source, and on the second branch road, string is provided with dry air source of the gas.
Described mixing gas circuit is provided with the mixture pressure table for detecting mixture pressure in mixing gas circuit.
Described second branch road is provided with the air manometer for dry air pressure in detection second branch road.
Described mixing gas circuit comprises gas mixer chamber, and the first branch road, the second branch road are all connected on described gas mixer chamber.
Described closed container is connected with mass spectrometer.
Described first branch road is provided with helium throttle valve, described second branch road is provided with air control shutter.
Describedly show that leaking source is helium source of the gas or argon gas source of the gas.
The utility model by arrange lithium battery leak detection system feeder can simultaneously with show that leaking source is connected with dry air source of the gas, for lithium battery to be measured provides the mixed gas of probe gas and dry air, dry air can provide certain pressure, make that probe gas is easier overflows from lithium battery to be measured, save the use amount of probe gas helium, save gas cost, and save leak detection cost on the whole.
Further, the utility model arranges mixture pressure table in mixing gas circuit, the flow that enter the mixed gas of lithium battery to be measured can be regulated according to the pressure of mixed gas, lithium battery leak detection system of the present utility model can be made to be applicable to the detection of battery of different model, size.
Accompanying drawing explanation
Fig. 1 is the embodiment schematic diagram of lithium battery leak detection system of the present utility model.
Embodiment
The embodiment of lithium battery leak detection system of the present utility model:
As shown in Figure 1, lithium battery leak detection system of the present utility model, comprise the closed container 15 for placing lithium battery 16 to be measured, the helium mass analyzer 18 be communicated with closed container 15, and to be communicated with lithium battery 16 to be measured and can to the feeder of insufflation gas in mesuring battary, described feeder comprises the mixing gas circuit be connected with lithium battery to be measured, mixing gas circuit is connected with the first branch road and the second branch road, first branch road with show that leaking source is connected, second branch road is connected with dry air source of the gas, the dry air that described mixing gas circuit comprises probe gas for being provided by the first branch road and the second branch road to be provided carries out the gas mixer chamber 8 mixed, probe gas and dry air are after gas mixer chamber mixes, lithium battery to be measured is filled with the first tracheae 14 be connected between gas mixer chamber by lithium battery to be measured, first tracheae and lithium battery to be measured and gas mixer chamber junction are and are tightly connected, first tracheae through closed container wall place also encapsulation process in case leak-stopping gas.The first tracheae be between gas mixer chamber and closed container pipeline on be connected with for monitoring the mixture pressure table 13 of mixture pressure.Helium mass analyzer is tightly connected with closed container by the second tracheae 19, and the pipeline of the second tracheae is provided with the helium detection head 17 for detecting helium.
In the present embodiment, show that leaking source is helium source of the gas 12, helium source of the gas is tightly connected with gas mixer chamber by the 3rd tracheae 11, the pipeline of the 3rd tracheae 11 is provided with for controlling the helium throttle valve 9 of helium gas flow and helium flow gauge the 10, three tracheae, helium throttle valve, helium flow gauge together constitute described first branch road.
Described dry air source of the gas comprises air compressor 1, the filtrator 2 be connected with air compressor, the gas-holder 3 that is connected with filtrator, air after air compressor can compress by filtrator 2 filters, and the air after filtration can store by gas-holder 3.Dry air source of the gas is tightly connected with gas mixer chamber by the 4th tracheae 4, the pipeline of the 4th tracheae is connected with in turn air flowmeter 5, controls air control shutter 6, the air manometer 7 of air mass flow, wherein, air manometer 7 is connected with gas mixer chamber.4th tracheae, air flowmeter, air control shutter, air manometer together constitute described second branch road.
Above-described embodiment in use, the pressurized air produced in air compressor is stored in gas-holder after filtering, the flow of the air entering gas mixer chamber is regulated by air control shutter, air flowmeter and air manometer can be used for monitoring the flow of the air entering gas mixer chamber and the pressure of generation, helium throttle valve can regulate the flow of the helium entered in gas mixer chamber, and helium flow gauge is used for monitoring the flow of helium.By the adjustment of helium throttle valve and air control shutter, in gas mixer chamber, the ratio of each gas can arbitrarily regulate, and to adapt to the needs of different accuracy of detection, and saves cost.Mixture pressure table can monitor the pressure of the mixed gas entered in battery to be detected, can regulate the number entering gas in mixed gas chamber, to control the gas flow entered in mesuring battary, adapt to the battery detecting needs of different size according to this pressure.
In other embodiments of lithium battery leak detection system of the present utility model, helium source of the gas and gas mixer chamber connecting line arrange helium throttle valve and helium flow gauge, the pipeline that dry air source of the gas is connected with mixed gas chamber is not provided with air control shutter and air flowmeter, regulates the ratio of each gas in mixed gas chamber by means of only the flow controlling helium.Certainly, also further helium flow gauge can be saved, only retain helium throttle valve.
In other embodiments, dry air source of the gas and mixed gas chamber's connecting line arrange air control shutter, air flowmeter and air manometer, and the connecting line of helium source of the gas and mixed gas chamber is not provided with helium throttle valve and helium flow gauge, the ratio of each gas in mixed gas chamber is regulated by means of only the flow controlling dry air.Certainly, also can further air flowmeter or air manometer be saved.
In other embodiments, dry air source of the gas can replace with dry air accumulator unit, store in dry air accumulator unit be applicable to helium mix after as the dry air of probe gas.
In other embodiments, show described in that leaking source is argon gas source of the gas.
The structure of the feeder in the embodiment of lithium battery leak detection system feeder of the present utility model and above-mentioned lithium battery leak detection system embodiment is completely the same, and this is no longer going to repeat them.In addition, in above-mentioned lithium battery leak detection system embodiment, the alternative of various feeder is applicable to the embodiment of lithium battery leak detection system feeder of the present utility model too.
Claims (10)
1. a lithium battery leak detection system feeder, it is characterized in that: comprise the mixing gas circuit be connected with lithium battery to be measured, mixing gas circuit is connected with the first branch road and the second branch road, and on the first branch road, string is provided with and shows leaking source, and on the second branch road, string is provided with dry air source of the gas.
2. lithium battery leak detection system feeder as claimed in claim 1, is characterized in that: described mixing gas circuit is provided with the mixture pressure table (13) for detecting mixture pressure in mixing gas circuit.
3. lithium battery leak detection system feeder as claimed in claim 1, is characterized in that: described second branch road is provided with the air manometer (7) for dry air pressure in detection second branch road.
4. lithium battery leak detection system feeder as claimed in claim 1, it is characterized in that: described mixing gas circuit comprises gas mixer chamber (8), the first branch road, the second branch road are all connected on described gas mixer chamber.
5. a lithium battery leak detection system, comprise the closed container (15) for placing lithium battery to be measured and feeder, it is characterized in that, described feeder comprises the mixing gas circuit be connected with lithium battery to be measured, mixing gas circuit is connected with the first branch road and the second branch road, on first branch road, string is provided with and shows leaking source, and on the second branch road, string is provided with dry air source of the gas.
6. lithium battery leak detection system as claimed in claim 5, is characterized in that, described mixing gas circuit is provided with the mixture pressure table (13) for detecting mixture pressure in mixing gas circuit.
7. lithium battery leak detection system as claimed in claim 5, is characterized in that, described second branch road is provided with the air manometer (7) for dry air pressure in detection second branch road.
8. lithium battery leak detection system as claimed in claim 5, it is characterized in that, described mixing gas circuit comprises gas mixer chamber (8), and the first branch road, the second branch road are all connected on described gas mixer chamber.
9. lithium battery leak detection system as claimed in claim 5, is characterized in that, described closed container is connected with mass spectrometer (18).
10. lithium battery leak detection system as claimed in claim 5, is characterized in that, described first branch road is provided with helium throttle valve (9), described second branch road is provided with air control shutter (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520154112.2U CN204461695U (en) | 2015-03-18 | 2015-03-18 | A kind of feeder and lithium battery leak detection system |
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| CN201520154112.2U CN204461695U (en) | 2015-03-18 | 2015-03-18 | A kind of feeder and lithium battery leak detection system |
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| CN204461695U true CN204461695U (en) | 2015-07-08 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823607A (en) * | 2016-03-14 | 2016-08-03 | 中航锂电（洛阳）有限公司 | Airtightness detection apparatus of power supply module |
| CN106017817A (en) * | 2016-05-17 | 2016-10-12 | 中广核检测技术有限公司 | Secondary side system for helium mass spectrum leakage detection equipment for heat-transfer pipe of nuclear steam generator |
| CN107991029A (en) * | 2016-10-26 | 2018-05-04 | 广舜检测技术（上海）有限公司 | A kind of lithium ion battery leakage detection apparatus and its leak hunting method using general densimeter |
| CN108827552A (en) * | 2018-06-08 | 2018-11-16 | 合肥国轩高科动力能源有限公司 | System and method for detecting sealing performance of lithium battery after liquid injection |
| CN109323813A (en) * | 2017-07-31 | 2019-02-12 | 深圳市远望工业自动化设备有限公司 | Mass spectrum leak detection equipment with elevating mechanism |
| CN109323814A (en) * | 2017-07-31 | 2019-02-12 | 深圳市远望工业自动化设备有限公司 | Mass spectrum leak detection equipment and mass spectrum leak detection method with classification inflation mechanism |
| CN109323819A (en) * | 2017-07-31 | 2019-02-12 | 深圳市远望工业自动化设备有限公司 | Mass spectrum leak detection method |
| CN111587569A (en) * | 2018-01-02 | 2020-08-25 | 三星电子株式会社 | Method for detecting and controlling battery state by using sensor and electronic device using the same |
| CN113916460A (en) * | 2021-09-27 | 2022-01-11 | 东风时代(武汉)电池系统有限公司 | Device and method for detecting welding quality of battery pole |
-
2015
- 2015-03-18 CN CN201520154112.2U patent/CN204461695U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823607A (en) * | 2016-03-14 | 2016-08-03 | 中航锂电（洛阳）有限公司 | Airtightness detection apparatus of power supply module |
| CN106017817A (en) * | 2016-05-17 | 2016-10-12 | 中广核检测技术有限公司 | Secondary side system for helium mass spectrum leakage detection equipment for heat-transfer pipe of nuclear steam generator |
| CN107991029A (en) * | 2016-10-26 | 2018-05-04 | 广舜检测技术（上海）有限公司 | A kind of lithium ion battery leakage detection apparatus and its leak hunting method using general densimeter |
| CN109323813A (en) * | 2017-07-31 | 2019-02-12 | 深圳市远望工业自动化设备有限公司 | Mass spectrum leak detection equipment with elevating mechanism |
| CN109323814A (en) * | 2017-07-31 | 2019-02-12 | 深圳市远望工业自动化设备有限公司 | Mass spectrum leak detection equipment and mass spectrum leak detection method with classification inflation mechanism |
| CN109323819A (en) * | 2017-07-31 | 2019-02-12 | 深圳市远望工业自动化设备有限公司 | Mass spectrum leak detection method |
| CN111587569A (en) * | 2018-01-02 | 2020-08-25 | 三星电子株式会社 | Method for detecting and controlling battery state by using sensor and electronic device using the same |
| CN111587569B (en) * | 2018-01-02 | 2022-04-19 | 三星电子株式会社 | Method for detecting and controlling battery state by using sensor and electronic device using the same |
| US11733303B2 (en) | 2018-01-02 | 2023-08-22 | Samsung Electronics Co., Ltd | Method for detecting and controlling battery status by using sensor, and electronic device using same |
| CN108827552A (en) * | 2018-06-08 | 2018-11-16 | 合肥国轩高科动力能源有限公司 | System and method for detecting sealing performance of lithium battery after liquid injection |
| CN113916460A (en) * | 2021-09-27 | 2022-01-11 | 东风时代(武汉)电池系统有限公司 | Device and method for detecting welding quality of battery pole |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160205 Address after: 213299 Jintan Road, Jintan District, Jiangsu, No. 88, No. Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Address before: 471003 Henan city of Luoyang province high tech Development Zone Binhe Road No. 66 Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 213200 Jiangdong Avenue 1, Jintan District, Jiangsu, Changzhou Patentee after: AVIC lithium Technology Co.,Ltd. Address before: 213299 No. 88, Jintan Avenue, Jintan District, Jiangsu, Changzhou Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: Zhongchuangxin Aviation Technology Co.,Ltd. Address before: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: AVIC lithium Technology Co.,Ltd. Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: AVIC lithium Technology Co.,Ltd. Address before: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: AVIC lithium Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220427 Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: Zhongchuangxin Aviation Technology (Jiangsu) Co.,Ltd. Address before: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: Zhongchuangxin Aviation Technology Co.,Ltd. |