CN105784288A - Nickel-cadmium battery helium mass spectrometer leak rate test method - Google Patents
Nickel-cadmium battery helium mass spectrometer leak rate test method Download PDFInfo
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- CN105784288A CN105784288A CN201410812493.9A CN201410812493A CN105784288A CN 105784288 A CN105784288 A CN 105784288A CN 201410812493 A CN201410812493 A CN 201410812493A CN 105784288 A CN105784288 A CN 105784288A
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Abstract
The invention relates to a nickel-cadmium battery helium mass spectrometer leak rate test method, and belongs to the technical field of nickel-cadmium batteries. The nickel-cadmium battery helium mass spectrometer leak rate test method is characterized in that the helium mass spectrometer leak rate test is adopted. During the test process, after a nickel-cadmium battery cell is sealed, the nickel-cadmium battery cell, qualified for chemical leak detection test, is placed in a closed tank. After that, the helium gas is filled into the closed tank. When the pressure inside the closed tank is constant, the timing is started. After that, the closed tank is placed in a detection chamber of a system. When the vacuum degree inside the detection chamber reaches the specified requirement, a check valve is opened. By means of a helium mass spectrometer leak detector, the overall leak rate of the nickel-cadmium battery cell is quantitatively detected. The nickel-cadmium battery helium mass spectrometer leak rate test method is simple in operation, convenient in test, accurate in data, high in test level and high in reliability. Therefore, the nickel-cadmium battery can be effectively and quantitatively detected.
Description
Technical field
The invention belongs to ickel-cadmium cell technical field, particularly relate to a kind of ickel-cadmium cell helium mass spectrum leak rate method of testing.
Background technology
At present, the sealing property of existing ickel-cadmium cell adopts chemical method to check, on the battery completing sealing, by using ethanol phenolphthalein solution that battery each road weld seam is hunted leak.This kind of method is simple to operate, visual result, and can realize battery weld leakage point is positioned.But meanwhile, it is disadvantageous in that, due to the restriction of method itself so that measuring accuracy is relatively low and cannot quantify battery overall sealing performance, is met for battery, the instructions for use of high reliability exists and lacks the technical problem such as data support the satellite long-life.
Summary of the invention
The present invention solves that the technical problem existed in known technology provides a kind of ickel-cadmium cell helium mass spectrum leak rate method of testing.
It is an object of the invention to provide one and have simple to operate, convenient test, data are accurate, and testing level is high, and reliability is high, it is possible to ickel-cadmium cell effectively carries out quantifying the ickel-cadmium cell helium mass spectrum leak rate method of testing of the features such as detection.
The present invention introduces the test of helium mass spectrum leak rate in cadmium nickel cell sealing property checks, after cell completes sealing, qualified cell of being hunted leak by chemical method is placed in vapor tight tank, it is filled with the helium of authorized pressure, take out after constant voltage regulation duration, use nitrogen that battery surface and weld seam are carried out winding-up process, the sensing chamber of system will be put into subsequently, when sensing chamber's vacuum reaches regulation requirement, open detection valve, utilize helium mass spectrometer leak detector, cadmium nickel cell entirety leak rate is carried out detection by quantitative.With it, detect that cell gas leak rate level is better than 1.0 × 10-7Pa·m3/ s, the sealing property of cell is effectively quantified detection, is conducive to improving set of cells reliability.
Ickel-cadmium cell helium mass spectrum leak rate method of testing of the present invention is adopted the technical scheme that:
A kind of ickel-cadmium cell helium mass spectrum leak rate method of testing, it is characterized in: ickel-cadmium cell helium mass spectrum leak rate method of testing introduces the test of helium mass spectrum leak rate, test process: after cadmium nickel cell completes sealing, the cadmium nickel cell hunting leak qualified by chemical method is placed in vapor tight tank, is filled with helium, constant voltage timing, it is subsequently placed in the sensing chamber of system, when sensing chamber's suction reaches regulation requirement, open detection valve, utilize helium mass spectrometer leak detector, cadmium nickel cell entirety leak rate is carried out detection by quantitative.
Ickel-cadmium cell helium mass spectrum leak rate method of testing of the present invention can also adopt the following technical scheme that
Described ickel-cadmium cell helium mass spectrum leak rate method of testing, is characterized in: after being filled with the timing of helium constant voltage, uses nitrogen that battery surface and weld seam are carried out winding-up process.
The present invention has the advantage that and has the benefit effect that
The technical scheme that ickel-cadmium cell helium mass spectrum leak rate method of testing is brand-new owing to have employed the present invention, compared with prior art, battery is placed in hermetically sealed can by the present invention, it is filled with helium the constant voltage certain time length of certain pressure, helium is made to be entered by the leakage position of battery internal, re-using helium mass spectrometer leak detector subsequently, the helium to enter inside battery does search gas and realizes the detection by quantitative to ickel-cadmium cell overall sealing performance.Method of testing of the present invention has simple to operate, convenient test, and data are accurate, and testing level is high, it is possible to effectively carry out ickel-cadmium cell quantifying the advantages such as detection.
Accompanying drawing explanation
Fig. 1 is that cadmium nickel cell fills helium constant voltage schematic diagram；
Fig. 2 is cadmium nickel cell helium mass spectrum leak rate leak rate test schematic diagram.
In figure, 1-helium tank, 2-charging valve.3-hermetically sealed can, 4-pressure vacuum gauge, 5-exits valve, 6-vent valve, 7-hunts leak chamber pressure measuring gage, 8-battery, 9-vacuum detecting room, 10-valve, 11-helium referance leak, 12-push-pull valve, 13-valve, 14-molecular pump, 15-mechanical pump, 16-mechanical pump, 17-valve, 18-helium mass spectrometer leak detector, 19-valve.
Detailed description of the invention
For the summary of the invention of the present invention, feature and effect can be further appreciated that, hereby enumerate following example, and it be as follows to coordinate accompanying drawing to describe in detail:
Embodiment 1
Accompanying drawings 1 and Fig. 2.
A kind of ickel-cadmium cell helium mass spectrum leak rate method of testing: introduce the test of helium mass spectrum leak rate in cadmium nickel cell sealing property checks, after cell completes sealing, qualified cell of being hunted leak by chemical method is placed in vapor tight tank, it is filled with the helium of authorized pressure, take out after constant voltage regulation duration, use nitrogen that battery surface and weld seam are carried out winding-up process, the sensing chamber of system will be put into subsequently, when sensing chamber's vacuum reaches regulation requirement, open detection valve, utilize helium mass spectrometer leak detector, cadmium nickel cell entirety leak rate is carried out detection by quantitative.With it, detect that cell gas leak rate level is better than 1.0 × 10-7Pa·m3/ s, the sealing property of cell is effectively quantified detection, is conducive to improving set of cells reliability.
The concrete test operating procedure of the present embodiment is as follows:
Ickel-cadmium cell helium mass spectrum leak rate test process: carry out surface cleaning process to through the chemical method qualified cell of leak detection by regulation, in the hermetically sealed can again cell formulated, it is filled with constant voltage regulation duration after the helium of authorized pressure size, use nitrogen that battery surface and commissure are carried out winding-up process after taking-up, then the battery being disposed is inserted ickel-cadmium cell helium mass spectrum leak rate test system sensing chamber in, start it is carried out evacuation after closing sensing chamber's door, after reaching specified vacuum degree, close sensing chamber's evacuating valve, use helium mass spectrometer leak detector that battery is carried out leak rate test, finally stop leak detection, recover normal pressure, take out battery, complete leak detection.
The present embodiment has described simple to operate, convenient test, and data are accurate, and testing level is high, and reliability is high, it is possible to effectively carry out ickel-cadmium cell quantifying the good effects such as detection.
Claims (2)
1. an ickel-cadmium cell helium mass spectrum leak rate method of testing, it is characterized in that: ickel-cadmium cell helium mass spectrum leak rate method of testing introduces the test of helium mass spectrum leak rate, test process: after cadmium nickel cell completes sealing, the cadmium nickel cell hunting leak qualified by chemical method is placed in vapor tight tank, is filled with helium, constant voltage timing, it is subsequently placed in the sensing chamber of system, when sensing chamber's suction reaches regulation requirement, open detection valve, utilize helium mass spectrometer leak detector, cadmium nickel cell entirety leak rate is carried out detection by quantitative.
2. ickel-cadmium cell helium mass spectrum leak rate method of testing according to claim 1, is characterized in that: after being filled with the timing of helium constant voltage, uses nitrogen that battery surface and weld seam are carried out winding-up process.
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| CN201410812493.9A CN105784288A (en) | 2014-12-23 | 2014-12-23 | Nickel-cadmium battery helium mass spectrometer leak rate test method |
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| CN201410812493.9A CN105784288A (en) | 2014-12-23 | 2014-12-23 | Nickel-cadmium battery helium mass spectrometer leak rate test method |
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| CN106017821A (en) * | 2016-08-05 | 2016-10-12 | 青海时代新能源科技有限公司 | Battery leakproofness detecting system |
| CN107389498A (en) * | 2017-07-07 | 2017-11-24 | 金华职业技术学院 | A kind of method for measuring methane transmitance |
| CN108414156A (en) * | 2018-02-11 | 2018-08-17 | 安徽问天量子科技股份有限公司 | Sealing leak detection system based on avalanche photodide and its operating method |
| CN109406065A (en) * | 2019-01-04 | 2019-03-01 | 湖南阿提斯智能装备有限公司 | A kind of side's shell lithium battery casing air-tightness detection device |
| CN110440998A (en) * | 2019-07-30 | 2019-11-12 | 核工业第八研究所 | A kind of composite material of silicon carbide round tube leak rate method for testing performance |
| CN111795784A (en) * | 2020-07-08 | 2020-10-20 | 苏州华智诚精工科技有限公司 | Helium detection process for detecting battery leakage |
| CN113029460A (en) * | 2021-02-03 | 2021-06-25 | 武汉英飞光创科技有限公司 | Leak detection method for optical device |
| CN113196028A (en) * | 2018-11-27 | 2021-07-30 | 西部制药服务有限公司 | System and method for seal integrity testing of sealed containers at cryogenic temperatures |
| CN113514197A (en) * | 2021-07-01 | 2021-10-19 | 广舜检测技术（上海）有限公司 | Vehicle battery PACK package leakage detection system and detection method based on accumulative test |
| CN116625593A (en) * | 2023-07-25 | 2023-08-22 | 爱发科东方检测技术(成都)有限公司 | Simulation leak for lithium battery leakage detection and use method thereof |
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| CN108414156A (en) * | 2018-02-11 | 2018-08-17 | 安徽问天量子科技股份有限公司 | Sealing leak detection system based on avalanche photodide and its operating method |
| CN113196028A (en) * | 2018-11-27 | 2021-07-30 | 西部制药服务有限公司 | System and method for seal integrity testing of sealed containers at cryogenic temperatures |
| CN109406065B (en) * | 2019-01-04 | 2021-11-19 | 重庆新知创科技有限公司 | Air tightness detection device for square-shell lithium battery shell |
| CN109406065A (en) * | 2019-01-04 | 2019-03-01 | 湖南阿提斯智能装备有限公司 | A kind of side's shell lithium battery casing air-tightness detection device |
| CN110440998A (en) * | 2019-07-30 | 2019-11-12 | 核工业第八研究所 | A kind of composite material of silicon carbide round tube leak rate method for testing performance |
| CN111795784A (en) * | 2020-07-08 | 2020-10-20 | 苏州华智诚精工科技有限公司 | Helium detection process for detecting battery leakage |
| CN113029460A (en) * | 2021-02-03 | 2021-06-25 | 武汉英飞光创科技有限公司 | Leak detection method for optical device |
| CN113029460B (en) * | 2021-02-03 | 2021-12-31 | 武汉英飞光创科技有限公司 | Leak detection method for optical device |
| CN113514197A (en) * | 2021-07-01 | 2021-10-19 | 广舜检测技术（上海）有限公司 | Vehicle battery PACK package leakage detection system and detection method based on accumulative test |
| CN116625593A (en) * | 2023-07-25 | 2023-08-22 | 爱发科东方检测技术(成都)有限公司 | Simulation leak for lithium battery leakage detection and use method thereof |
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Application publication date: 20160720 |