CN106500923B - A kind of supercapacitor leak detection tool equipment - Google Patents
A kind of supercapacitor leak detection tool equipment Download PDFInfo
- Publication number
- CN106500923B CN106500923B CN201611096338.7A CN201611096338A CN106500923B CN 106500923 B CN106500923 B CN 106500923B CN 201611096338 A CN201611096338 A CN 201611096338A CN 106500923 B CN106500923 B CN 106500923B
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- supercapacitor
- leak detection
- detection tool
- tool equipment
- measured
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
- G01M3/205—Accessories or associated equipment; Pump constructions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/226—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention discloses a kind of supercapacitor leak detection tool equipments to be made of for cylindrical shape upper and lower two part, and large size O-ring seal is arranged in the end face of two parts connection；Upper atop part setting aperture is used to connect the device of air that adds helium；Lower part bottom sides opening welding vacuum flange, for connecting helium mass spectrometer leak detector；Tooling inside upper surface is provided with rounded groove, for positioning supercapacitor to be measured；O-ring seal is arranged in inside top, and the fluid injection hole site of supercapacitor to be measured is located at the inside of the enclosed circumference of O-ring seal, and supercapacitor leak detection tool equipment bottom cover is configured with elastic rubber.It places capacitor when the present invention tests not needing deliberately to align, reliability, testing efficiency are good, and test result is accurate；Sealing effect is good, and structure is reliable, and assembly is simple, time saving and energy saving；Time needed for forvacuum is short, improves testing efficiency；And a relatively low vacuum degree easy to accomplish excludes influence of the helium in air to test result.
Description
Technical field
The present invention relates to a kind of leakage detection apparatus of supercapacitor more particularly to a kind of supercapacitor leak detection tool equipments.
Background technique
Supercapacitor (also known as farad capacitor, gold capacitor) is a kind of new between traditional capacitance and secondary cell
Emerging energy storage electrical component.It is the high-specific-power of super capacitor, high current charge-discharge ability, the long-life, ultralow temperature performance, highly reliable
Property, it is environmentally protective the features such as so that its fields such as industrial electronic, communications and transportation, the renewable sources of energy, military affairs as power power-supply or
Accumulation power supply is widely used.The reliability for influencing supercapacitor mainly has the following aspects: internal resistance, mechanical structure
Stability, air-tightness etc..
Wherein air-tightness is a very crucial technical indicator, safety and service life concerning supercapacitor, and
Lithium ion battery is compared, and super electric sealing requirements are higher.As the application field of supercapacitor is more and more extensive, to super electricity
More stringent requirements are proposed for the safety of container, so, before supercapacitor encapsulation, carrying out leak detection to it seems outstanding
It is important.
The common leak detection tool equipment of industry is usually relatively complex, at high cost, cumbersome, is unfavorable for process when batch production
Full inspection；The leakage detection apparatus of the type, since the volume of design is bigger, the time of forvacuum is very long, and testing efficiency is low,
And it is easy to appear leakage, influences the accuracy of test.
The position of the liquid injection hole of supercapacitor oral area be not fixed, conventional test fixture be all in alignment with this hole into
Row pumping or pressurization, this fit system difficulty is big, the bad control of aligning accuracy.
Summary of the invention
For supercapacitor structures feature and special technical requirements, the present invention proposes that a kind of leakage detection apparatus is used to detect
Slip before supercapacitor fluid injection.
Supercapacitor leak detection tool equipment of the present invention is cylindrical shape, is made of upper and lower two part, the end of upper and lower two parts connection
Large size O-ring is arranged in face, pushes tooling bottom cover by cylinder, implements sealing；Upper part top drilling is used to connect the gas dress that adds helium
It sets；Lower part bottom sides opening welding vacuum flange, for connecting helium mass spectrometer leak detector；Inside supercapacitor leak detection tool equipment
Upper surface is provided with rounded groove, for positioning supercapacitor to be measured；The setting of supercapacitor leak detection tool equipment inside top is O-shaped close
Seal, supercapacitor leak detection tool equipment bottom cover are configured with elastic rubber, Auxiliary support supercapacitor to be measured.
This leak detection tool equipment is more small and exquisite, and clamping is simple, and reliably, when forvacuum can reach relatively low vacuum degree, surveys
Pressure that is more accurate, and can control addition helium is tried, the test under different brackets pressure is adapted to, test result is more quasi-
It is really and scientific.
The leak detection tool equipment internal diameter is 2mm-5mm bigger than the outer diameter of supercapacitor to be measured, and preferential 2mm is easy to setup, again
The volume for reducing forvacuum space, can shorten the time of forvacuum in this way, be rapidly achieved the vacuum degree of < 2pa, improve
Testing efficiency can guarantee the accuracy of test result again.
The elastic rubber can be fluorubber, ethylene propylene diene rubber, polytetrafluoroethylene (PTFE) etc., preferably fluorubber, can
By durable；The spring that elastic rubber can also be replaced with to a kind of proper strength, also may be implemented same purpose.
The leakage detection apparatus lower bottom cover can push up sealing with cylinder, this mode is suitable for mass production；It can also be with
It is designed to manual closing spanner, this mode is suitble to research and development to test, and it is low in cost, but structure is reliable.
The pressure of the addition helium is 0.5bar-8bar, is controlled by accurate helium pressure regulator valve, preferably 0.5bar
Helium, pressure is smaller, and the amount of helium that can accomplish non-destructive testing, and be filled with meets the test request of helium mass spectrum leak detection enough,
Guarantee measuring accuracy；Under some special test conditions, the helium of bigger pressure, the actual use of analog equipment can be filled with
Environment, this properer reality of test mode result have certain reference significance to properties of product assessment.
This leakage detection apparatus has following advantages:
1, design of Sealing Structure is ingenious, it is only necessary to which two necessary sealings can be realized in a movement, and sealing effect is good, knot
Structure is reliable, and assembly is simple, time saving and energy saving.
2, when hunting leak, spatial volume locating for testing capacitor is small, and the time needed for forvacuum is very short, greatly improves
Testing efficiency；And a relatively low vacuum degree easy to accomplish excludes influence of the helium in air to test result, mentions
The high accuracy of test.
3, the aligning structure that testing capacitor is connected with tooling is ingenious in design, place when test capacitor do not need it is deliberately right
Position ensure that the reliability of tooling sealing, improve testing efficiency, improve the accuracy of test result.
Detailed description of the invention
The present invention is further described with example with reference to the accompanying drawing.
Fig. 1 is supercapacitor leak detection tool equipment connection schematic diagram of the present invention.
Fig. 2 is the cross-sectional view of supercapacitor leak detection tool equipment of the present invention.
Fig. 3 is supercapacitor leak detection tool equipment of the present invention and supercapacitor connection schematic diagram to be measured.
Fig. 4 is supercapacitor leak detection tool equipment liquid injection hole of the present invention and upper sealing gasket schematic diagram.
Fig. 5 is the sealing structure top view of the testing capacitor oral area of supercapacitor leak detection tool equipment of the present invention.
Fig. 6 is the sealing structure top view of the testing capacitor oral area of existing knowledge tooling.
Specific embodiment
As depicted in figs. 1 and 2, supercapacitor leak detection tool equipment of the present invention connects helium mass spectrum leak detection by vacuum flange 101
Tester 1 connects the device of air 3 that adds helium by aperture 102.Vacuum flange 101 can be model KF-25.
Fig. 2 show the cross-sectional view of supercapacitor leak detection tool equipment of the present invention, and supercapacitor leak detection tool equipment is cylindrical shape,
It is made of upper and lower two part, large size O-ring 105 is arranged in the end face of upper and lower two parts connection, pushes tooling bottom cover by cylinder, real
Apply sealing；Helium injects supercapacitor to be measured by aperture 102, and the setting of supercapacitor leak detection tool equipment inside top is O-shaped close
Seal 103, inside upper surface are provided with rounded groove 104 for positioning supercapacitor to be measured；Supercapacitor leak detection tool equipment bottom
Lid is configured with elastic rubber 106, Auxiliary support supercapacitor to be measured.
The advantages of further illustrating supercapacitor leak detection tool equipment of the present invention below with reference to Fig. 3, Fig. 4.
Such as Fig. 4, only one liquid injection hole 301 is its inside of connection before supercapacitor to be measured is unencapsulated, so helium
When mass spectrometric measurement need from this hole be added helium, due to be provided with O-ring seal 103, thus prevent helium be leaked to it is to be measured
Try region 303.When clamping supercapacitor to be measured, supercapacitor to be measured is assembled inside tooling from the bottom up, using super
Grade capacitor terminal 302 is stuck among tooling top circular fluting 104, and 104 internal diameters are 0.2mm bigger than 302 outer diameters, and is equipped with
Angle, it is convenient for assembly, and positioning can be implemented, guarantee the concentricity of capacitor and fixture；Work is pushed using cylinder or Manual pressure bar
Bottom 107 is filled, tooling is closed, sealing ring 105 will receive compressional deformation and play sealing function at this time, guarantee the air-tightness of tooling,
As shown in Fig. 3 sealing position 203；The elastic rubber 106 of tooling bottom can give capacitor one upward holding power simultaneously, thus
The O-ring seal 103 of compression tooling inside top setting, as shown in Fig. 3 top seal position 202.Sealing ring 103, which separates, to add helium
The space that gas channel 205(, that is, aperture 102 is connect with the liquid injection hole 301 of supercapacitor to be measured) and tooling and super electricity to be measured
Space 201 between container ensure that the helium being added when leak detection tool equipment work will not enter tooling and supercapacitor to be measured
Between space 201, do not influence test result.The Fixture Design is ingenious, it is only necessary to one movement can be realized two it is necessary
Sealing, assembly is very simple and reliable, time saving and energy saving.
Further, when leakage detection apparatus works, helium mass spectrometer leak detector is by vacuum flange 101 to tooling and super electricity to be measured
Space 201 between container is vacuumized, as shown in figure 3, the internal diameter inside tooling is 2-5mm bigger than testing capacitor outer diameter,
So 201 volume of space is very small, the time needed for forvacuum is very short, substantially increases testing efficiency.
This tooling also solves the difficult feature of traditional test tooling contraposition.Comparison is as shown in Figure 5 and Figure 6.O-ring 103 is
The position of the sealing means that the present invention uses, the liquid injection hole 301 of supercapacitor to be measured is located in supercapacitor leak detection tool equipment
The inside of the enclosed circumference of lateral roof O-ring seal 103.403 be the sealing ring that traditional tooling uses.Due to the position of liquid injection hole 301
It is random for setting, and the sealing structure for the sealing ring 403 that traditional tooling uses requires contraposition very accurate, once it is inclined to generate contraposition
Difference just will affect entire sealing effect and test result.The present invention innovates the sealing structure proposed, carries out in the periphery of liquid injection hole
Sealing, this structure design do not need to align, arbitrarily placement capacitor, and ensure that the reliability of tooling sealing, improve
Testing efficiency improves the accuracy of test result.
Supercapacitor leak detection tool equipment of the present invention is used to detect the slip before supercapacitor fluid injection, has measuring accuracy
Height, it is high-efficient, it is at low cost, assemble simple feature.The sealing propertytest requirement that can satisfy supercapacitor, is conducive to improve
Production efficiency and qualification rate have positive production practices meaning to reduce the production cost of supercapacitor.
Claims (3)
1. a kind of supercapacitor leak detection tool equipment；It is characterized in that supercapacitor leak detection tool equipment is cylindrical shape, by upper and lower two
Divide and constitute, large size O-ring seal is arranged in the end face of upper and lower two parts connection, pushes tooling bottom cover, implementation sealing by cylinder；On
Atop part setting aperture is used to connect the device of air that adds helium；Lower part bottom sides opening welding vacuum flange, for connecting helium
Mass-spectrometer leak detector；Supercapacitor leak detection tool equipment inside upper surface is provided with rounded groove, for positioning supercapacitor to be measured；It is super
O-ring seal is arranged in grade capacitor leak detection tool equipment inside top, and the fluid injection hole site of supercapacitor to be measured is located at super capacitor
The inside of the enclosed circumference of device leak detection tool equipment inside top O-ring seal, supercapacitor leak detection tool equipment bottom cover configure flexible rubber
Glue, Auxiliary support supercapacitor to be measured；Supercapacitor leak detection tool equipment internal diameter is 2- bigger than the outer diameter of supercapacitor to be measured
5mm；Gap between tooling and supercapacitor to be measured is vacuumized, is injected by the liquid injection hole of supercapacitor to be measured
Helium leaks hunting.
2. supercapacitor leak detection tool equipment as described in claim 1, it is characterised in that elastic rubber is fluorubber, EPDM
Rubber, polytetrafluoroethylene (PTFE).
3. supercapacitor leak detection tool equipment as described in claim 1, it is characterised in that supercapacitor terminal to be measured is stuck in circle
Among shape fluting, rounded groove internal diameter is 0.2mm bigger than terminal outer diameter, and is equipped with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611096338.7A CN106500923B (en) | 2016-12-02 | 2016-12-02 | A kind of supercapacitor leak detection tool equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611096338.7A CN106500923B (en) | 2016-12-02 | 2016-12-02 | A kind of supercapacitor leak detection tool equipment |
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| Publication Number | Publication Date |
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| CN106500923A CN106500923A (en) | 2017-03-15 |
| CN106500923B true CN106500923B (en) | 2019-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611096338.7A Active CN106500923B (en) | 2016-12-02 | 2016-12-02 | A kind of supercapacitor leak detection tool equipment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664559A (en) * | 2017-08-01 | 2018-02-06 | 南通江海储能技术有限公司 | A kind of ultracapacitor leak hunting method |
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| JP3856121B2 (en) * | 2002-03-29 | 2006-12-13 | 日本ケミコン株式会社 | Capacitor airtightness inspection method and apparatus |
| CN201397217Y (en) * | 2009-04-14 | 2010-02-03 | 深圳市吉阳自动化科技有限公司 | Capacitor leakage detection device |
| CN102095557A (en) * | 2010-12-20 | 2011-06-15 | 天津力神电池股份有限公司 | Leak-detecting device of super capacitor |
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| 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 |
| CN206235440U (en) * | 2016-12-02 | 2017-06-09 | 柯贝尔电能质量技术（上海）有限公司 | A kind of ultracapacitor leak detection tool equipment |
-
2016
- 2016-12-02 CN CN201611096338.7A patent/CN106500923B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3856121B2 (en) * | 2002-03-29 | 2006-12-13 | 日本ケミコン株式会社 | Capacitor airtightness inspection method and apparatus |
| CN201397217Y (en) * | 2009-04-14 | 2010-02-03 | 深圳市吉阳自动化科技有限公司 | Capacitor leakage detection device |
| CN102095557A (en) * | 2010-12-20 | 2011-06-15 | 天津力神电池股份有限公司 | Leak-detecting device of super capacitor |
| CN202631207U (en) * | 2012-04-16 | 2012-12-26 | 宁德新能源科技有限公司 | Power battery air tightness detection apparatus |
| CN103674451A (en) * | 2013-12-20 | 2014-03-26 | 天津力神电池股份有限公司 | Leakage detection method and device for peripheral welding of lithium-ion battery |
| CN104006923A (en) * | 2014-02-19 | 2014-08-27 | 宁波南车新能源科技有限公司 | Supercapacitor gas tightness detection method and gas tightness detection machine |
| 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 |
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| CN106500923A (en) | 2017-03-15 |
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