CN103616143A - Air tightness detecting device for cylindrical cell - Google Patents
Air tightness detecting device for cylindrical cell Download PDFInfo
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- CN103616143A CN103616143A CN201310600717.5A CN201310600717A CN103616143A CN 103616143 A CN103616143 A CN 103616143A CN 201310600717 A CN201310600717 A CN 201310600717A CN 103616143 A CN103616143 A CN 103616143A
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- detection device
- tightness detection
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- electrical core
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Abstract
The invention discloses an air tightness detecting device for a cylindrical cell. The air tightness detecting device comprises an air-pressure meter, a high-pressure air pipe connector, a base and an air inflation connector. The air inflation connector comprises a conical hollow threaded rod on the front portion and a feeding mechanism on the rail portion, the base is provided with an installation hole with the diameter being slightly larger than the diameter of the cell to be detected, a threaded hole allowing the conical hollow threaded rod to penetrate is formed in the side wall of the installation hole, the tail end of the air inflation connector is movably connected with the high-pressure air pipe connector, the high-pressure air pipe connector is in series connection with the air-pressure meter, and a liquid storage device is arranged on the upper portion of the base. According to the air tightness detecting device, the cell is inserted from the side face by the utilization of the conical hollow threaded rod so as to prevent the cell from flying away in the pressurizing process, a drilling air hole does not need to be arranged singly, propulsion control is accurate, a liquid storage bin and a bleeder valve which is arranged on one side of the installation hole are arranged on the base, liquid is directly filled into the liquid storage bin during air tightness detection, the application amount of the liquid is small, the liquid is prevented from being polluted by a destructive test, detection can be performed conveniently and rapidly without moving the whole air tightness detecting device into a water channel, and cost is reduced greatly.
Description
Technical field
The invention belongs to battery air tightness detection technique field, particularly a kind of cylindrical electrical core air-tightness detection device.
Background technology
At present, in the manufacturing process of battery, the poor sealing of battery sizes lid heat-sealing, can cause battery to leak the problems such as acid, affects battery quality; Therefore, need to carry out airtight test to battery.Existing air-tightness detection method is normally poor by mineralization pressure inside and outside battery, utilizes the poor variation of pressure transducer detected pressures to judge impermeability, and this is the General Principle of air tightness detection machine.But, in detection cylindrical electrical core impermeability and explosion-proof valve, open in the practical operation of pressure data, general employing adds an O RunddichtringO at battery core head-tail, again battery core is placed on to one and slightly larger in diameter in the metal device of battery core, a hole is bored in battery core bottom and from bottom, inflate, then a water is put in battery core block place observe it and whether leak gas.The method complicated operation and have certain potential safety hazard, causes battery core to be filled if air pressure is controlled bad meeting, not only the failure of an experiment but also the people that easily injures; The method that also has bottom to insert is single cannot complete independently, installs, detection speed is slow, accuracy is low.Therefore, needing a kind of novel cylindrical electrical core of design badly reduces detection difficulty and increases work efficiency with air-tightness detection device.Application number: 201220500677.8 Chinese patent discloses a kind of cylindrical battery sealing air-tightness detection device, comprise tensimeter, high-pressure air pipe joint, draw point, worktable, battery clamp, cylinder, it is characterized in that tensimeter is connected with high-pressure air pipe joint; Battery clamp comprises strap, mobile clamping plate, guide rail, silicagel pad; The inner concave that is fixed in the strap on worktable is provided with silicagel pad, and high-pressure air pipe joint is housed on strap, draw point and the seamless link of high-pressure air pipe joint, and be placed in strap hole and through silicagel pad; Between strap, mobile clamping plate, pass through guide rail fixed guide; On worktable, be provided with cylinder, cylinder rams is fixed in the outside of mobile clamping plate.Easy to operate when although it detects, but must hole to battery core before detecting, easily inner physicochemical property is exerted an influence, and in testing process, need to be equipped with separately in addition cylinder as draw point insertion detection battery core described in propelling power guarantee, and preformed hole gap is larger in draw point and battery core, if being greater than preformed hole, described draw point external diameter is difficult to insert.
Summary of the invention
The object of the present invention is to provide the cylindrical electrical core air-tightness detection device of a kind of simple to operate, safe and reliable, sampling Detection battery core impermeability and explosion-proof performance.
For achieving the above object, the technical solution used in the present invention is: a kind of cylindrical electrical core air-tightness detection device, comprise rain glass, high-pressure air pipe joint, pedestal and gas-charging connection, described gas-charging connection comprises anterior taper hollow thread bar and the feed mechanism of afterbody, on described pedestal, be provided with slightly larger in diameter in the mounting hole of tested battery core diameter, the threaded hole that wears taper hollow thread bar is set on described mounting hole sidewall, described gas-charging connection tail end is flexibly connected described high-pressure air pipe joint, on described high-pressure air pipe joint, be connected in series described rain glass, described pedestal top arranges liquid storage device.
Described liquid storage device comprises the containing liquid chamber of described pedestal top setting and the bleeder valve of described mounting hole one side.
Described containing liquid chamber is connected with base thread.
Described containing liquid chamber is set to transparent products or described containing liquid chamber sidepiece arranges view window.
Described containing liquid chamber top arranges transparent arc capping, and the top of described arc capping arranges liquid injection port.
Described feed mechanism comprises that outside has axle and the flexible handle of card access surface.
Described feed mechanism comprises gear pair and drive motor.
Described taper hollow thread bar front portion is provided with O-ring seal, and described threaded hole front end arranges the groove that size is greater than described O-ring seal.
Described mounting hole sidewall is embedded illumination part.
The present invention is provided with slightly larger in diameter in the mounting hole of tested battery core diameter on pedestal, in order to detected battery to be installed, threaded hole is set on mounting hole sidewall described in described pedestal and is used for wearing taper hollow thread bar, the present invention adopts taper hollow thread bar structure to be inserted in battery core to be detected through described threaded hole, and the front end of taper can puncture battery core outer wall, with before conventional sense, need first the technology to battery core boring and compare, not only optimized detection, reduced detection time, taper surface structure fits inside rear thread and advances the contact of surface of contact tight, impermeability is good, can also avoid material outflow in battery core and ambient atmos to enter and affect its physicochemical property, the endoporus of described taper hollow thread bar sees through described feed mechanism and is connected with the high-pressure air pipe joint that described gas-charging connection tail end is flexibly connected, realized the conducting of gas circuit, and can test easily detection by the rain glass being connected in series on described high-pressure air pipe joint, described pedestal top arranges liquid storage device, described liquid storage device comprises the containing liquid chamber of described pedestal top setting and the bleeder valve of described mounting hole one side, the present invention by arrange described liquid storage device can be when impermeability detects directly to filling liquid in described containing liquid chamber, not only liquid consumption is few, prevent dirty to liquid of destructive test, and can detect easily to tank without integral shift, detection efficiency and cost reduce greatly, described containing liquid chamber is connected with base thread, adopts the form impermeability being threaded good, and can remove described containing liquid chamber, simple operation when battery core or cleaning legacy are installed, described containing liquid chamber is set to transparent products or described containing liquid chamber sidepiece arranges view window, can well observe real-time detected status, when avoiding observing aloft, easily produce the potential safety hazards such as blasting impact, particularly described containing liquid chamber top arranges transparent arc capping, the top of described arc capping arranges liquid injection port, liquid can be filled with, and has Bubble formation just can significantly see, improved detection accuracy, and described arc capping also has the effect of safety guard, described feed mechanism comprises that outside has axle and the flexible handle of card access surface, utilizing laborsaving lever construction easily to realize inserts described taper hollow thread bar structure in battery core to be detected from the side, and a people can complete whole testing process, reduced human cost, another kind of mode, described feed mechanism comprises gear pair and drive motor, insert in battery core to be detected, and speed is faster by controlling described drive motor with regard to conveniently realizing described taper hollow thread bar structure, described taper hollow thread bar front portion is provided with O-ring seal, in company with described taper hollow thread bar, move together, after inserting battery core, described O-ring seal can well guarantee impermeability, in placement gas replenishment process, leak from here the illusion that causes poor air-tightness, described threaded hole front end arranges the groove that size is greater than described O-ring seal, under original state, described sealing gasket and described taper hollow thread bar be not in exposing the state of described groove, guarantee can not disturb the flexible installation of battery core to be measured, described mounting hole sidewall is embedded illumination part, can improve the brightness of device inside, can be clearer the real-time condition that detects of observation, improved the accuracy detecting.
The present invention utilizes described taper hollow thread bar to insert from the side battery core and detects, effectively prevent from impacting and flying up in pressure process, and do not need to join separately and creep into pore, be threaded stable, reliably, advance precise control, further, the bleeder valve of the containing liquid chamber that the present invention arranges on described pedestal and described mounting hole one side, when impermeability detects directly to filling liquid in described containing liquid chamber, not only liquid consumption is few, prevent dirty to liquid of destructive test, and do not need integral shift can detect easily to tank, cost reduces greatly.The present invention is easy to operate, and detection efficiency is high, with low cost, applicable to cylindrical battery sealing impermeability, detects, and is convenient to promote the use of.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is a kind of structural representation of the embodiment of the present invention one;
Fig. 2 is the structural representation of the embodiment of the present invention one gas-charging connection;
Fig. 3 is a kind of structural representation of the embodiment of the present invention two;
Fig. 4 is a kind of structural representation of arc capping described in the embodiment of the present invention three.
Embodiment
Specific embodiment one
As shown in Figure 1, a kind of cylindrical electrical core air-tightness detection device, comprise rain glass 1, high-pressure air pipe joint 2, pedestal 3 and gas-charging connection, described gas-charging connection comprises anterior taper hollow thread bar 4 and the feed mechanism of afterbody, on described pedestal 3, be provided with slightly larger in diameter in the mounting hole 6 of tested battery core 5 diameters, the threaded hole that wears taper hollow thread bar 4 is set on described mounting hole 6 sidewalls, described gas-charging connection 4 tail ends are flexibly connected described high-pressure air pipe joint 2, on described high-pressure air pipe joint 2, be connected in series described rain glass 1, described pedestal 3 tops arrange liquid storage device, described liquid storage device comprises the containing liquid chamber 8 of described pedestal 3 tops settings and the bleeder valve 9 of described mounting hole 6 one sides.
Described containing liquid chamber 8 and pedestal 3 are threaded.
Described containing liquid chamber 8 is set to transparent products or described containing liquid chamber 8 sidepieces arrange view window.
Described feed mechanism comprises that outside has axle 7 and the flexible handle 10 of card access surface.
Described taper hollow thread bar 4 front portions are provided with O-ring seal 11, and described threaded hole front end arranges the groove that size is greater than described O-ring seal 11.
Cylindrical electrical core of the present invention by the using method of air-tightness detection device is: first battery core to be detected 5 is put into described mounting hole 6 rotation flexible handles 10 and drive taper hollow thread bar 4 to advance, when withstanding battery core 5, taper hollow thread bar 4 firmly make again its tip pierce through battery core 5, until the tip of taper hollow thread bar 4 all enters battery core 5, now described O-ring seal 11 with battery core 5 outer wall top tight sealings; Then described containing liquid chamber 8 is installed, and filling liquid, connect described high-pressure air pipe joint 2 and pass into nitrogen, atmospheric pressure is set to the airtight test pressure scope of technological requirement, observe battery core 5 sealing part sealing conditions; After battery core 5 sealing part airtight tests are complete, more slowly pressurized nitrogen until battery core 5 explosion-protection equipments start, the atmospheric pressure when recording numerical value on rain glass 1 and be exactly battery core 5 explosion-proof valves and opening moment.
Embodiment bis-
As shown in Figure 3, a kind of cylindrical electrical core air-tightness detection device, is with the difference of embodiment mono-: described feed mechanism comprises gear pair 12 and drive motor 13.
Cylindrical electrical core of the present invention is identical with embodiment mono-by the using method of air-tightness detection device.
Embodiment tri-
As Figure 1 and Figure 4, a kind of cylindrical electrical core air-tightness detection device, be with the difference of embodiment mono-: described containing liquid chamber 8 tops arrange transparent arc capping 14, and the top of described arc capping 14 arranges liquid injection port 15, described arc gland bonnet 14 is threaded with described containing liquid chamber 8.
Embodiment tetra-
A cylindrical electrical core air-tightness detection device, is with embodiment mono-or two difference: described mounting hole 6 sidewalls are embedded illumination part.
Cylindrical electrical core of the present invention is identical with embodiment mono-by the using method of air-tightness detection device.
Claims (9)
1. a cylindrical electrical core air-tightness detection device, it is characterized in that: comprise rain glass, high-pressure air pipe joint, pedestal and gas-charging connection, described gas-charging connection comprises anterior taper hollow thread bar and the feed mechanism of afterbody, on described pedestal, be provided with slightly larger in diameter in the mounting hole of tested battery core diameter, the threaded hole that wears taper hollow thread bar is set on described mounting hole sidewall, described gas-charging connection tail end is flexibly connected described high-pressure air pipe joint, on described high-pressure air pipe joint, be connected in series described rain glass, described pedestal top arranges liquid storage device.
2. cylindrical electrical core air-tightness detection device as claimed in claim 1, is characterized in that: described liquid storage device comprises containing liquid chamber that described pedestal top arranges and the bleeder valve of described mounting hole one side.
3. cylindrical electrical core air-tightness detection device as claimed in claim 2, is characterized in that: described containing liquid chamber is connected with base thread.
4. cylindrical electrical core air-tightness detection device as described in claim 2 or 3, is characterized in that: described containing liquid chamber is set to transparent products or described containing liquid chamber sidepiece arranges view window.
5. cylindrical electrical core air-tightness detection device as described in claim 2 or 3, is characterized in that: described containing liquid chamber top arranges transparent arc capping, and the top of described arc capping arranges liquid injection port.
6. cylindrical electrical core air-tightness detection device as claimed in claim 1, is characterized in that: described feed mechanism comprises that outside has axle and the flexible handle of card access surface.
7. cylindrical electrical core air-tightness detection device as claimed in claim 1, is characterized in that: described feed mechanism comprises gear pair and drive motor.
8. cylindrical electrical core air-tightness detection device as claimed in claim 1, is characterized in that: described taper hollow thread bar front portion is provided with O-ring seal, and described threaded hole front end arranges the groove that size is greater than described O-ring seal.
9. cylindrical electrical core air-tightness detection device as claimed in claim 1, is characterized in that: described mounting hole sidewall is embedded illumination part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310600717.5A CN103616143B (en) | 2013-11-25 | 2013-11-25 | A kind of cylindrical electrical core air-tightness detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310600717.5A CN103616143B (en) | 2013-11-25 | 2013-11-25 | A kind of cylindrical electrical core air-tightness detection device |
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| CN103616143A true CN103616143A (en) | 2014-03-05 |
| CN103616143B CN103616143B (en) | 2016-08-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808468A (en) * | 2014-03-07 | 2014-05-21 | 南通新三能电子有限公司 | Airtightness detection device for cover plate of bolt type electrolytic capacitor cover plate and detection method thereof |
| CN104132784A (en) * | 2014-08-13 | 2014-11-05 | 南通新三能电子有限公司 | Leakproofness detecting device and method for electrolytic condenser seal |
| CN104614128A (en) * | 2015-01-12 | 2015-05-13 | 浙江天能能源科技有限公司 | Lithium battery liquid leakage detection device |
| CN109459196A (en) * | 2018-12-12 | 2019-03-12 | 东风时代(武汉)电池系统有限公司 | Battery pack air-tightness automatic checkout system |
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| JP2002134164A (en) * | 2000-10-25 | 2002-05-10 | Ngk Insulators Ltd | Leak detection method of sealed container, and leak detector |
| CN202814661U (en) * | 2012-09-28 | 2013-03-20 | 山西皇城相府中道能源有限公司 | Cylindrical battery sealing air tightness detection |
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| CN203629756U (en) * | 2013-11-25 | 2014-06-04 | 河南福森新能源科技有限公司 | Air tightness detection device for cylindrical electrical core |
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2013
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Patent Citations (5)
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| JP2000121483A (en) * | 1998-10-16 | 2000-04-28 | Sanoh Industrial Co Ltd | Leak detection method for caulking part of battery can with groove |
| JP2002134164A (en) * | 2000-10-25 | 2002-05-10 | Ngk Insulators Ltd | Leak detection method of sealed container, and leak detector |
| CN202814661U (en) * | 2012-09-28 | 2013-03-20 | 山西皇城相府中道能源有限公司 | Cylindrical battery sealing air tightness detection |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808468A (en) * | 2014-03-07 | 2014-05-21 | 南通新三能电子有限公司 | Airtightness detection device for cover plate of bolt type electrolytic capacitor cover plate and detection method thereof |
| CN103808468B (en) * | 2014-03-07 | 2016-08-17 | 南通新三能电子有限公司 | Screw bolt-type electrolysis condenser cover plate for sealing detection method |
| CN104132784A (en) * | 2014-08-13 | 2014-11-05 | 南通新三能电子有限公司 | Leakproofness detecting device and method for electrolytic condenser seal |
| CN104132784B (en) * | 2014-08-13 | 2016-10-05 | 南通新三能电子有限公司 | Electrolytic capacitor sealing device for detecting sealability and detection method thereof |
| CN104614128A (en) * | 2015-01-12 | 2015-05-13 | 浙江天能能源科技有限公司 | Lithium battery liquid leakage detection device |
| CN104614128B (en) * | 2015-01-12 | 2017-12-08 | 浙江天能能源科技股份有限公司 | A kind of lithium battery apparatus for testing weeping |
| CN109459196A (en) * | 2018-12-12 | 2019-03-12 | 东风时代(武汉)电池系统有限公司 | Battery pack air-tightness automatic checkout system |
| CN109459196B (en) * | 2018-12-12 | 2020-07-28 | 东风时代(武汉)电池系统有限公司 | Automatic detection system for air tightness of battery pack |
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| Publication number | Publication date |
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| CN103616143B (en) | 2016-08-10 |
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Address after: 474450 Xichuan County Industrial Park, Henan, Nanyang Patentee after: Henan's new energy Polytron Technologies Inc Address before: 474405 Jinhe Industrial Zone, Xichuan County, Henan, Nanyang Patentee before: HENAN FUSEN NEW ENERGY TECHNOLOGY CO., LTD. |
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Address after: 474450 Xichuan County Industrial Park, Henan, Nanyang Patentee after: HENAN FUSEN NEW ENERGY TECHNOLOGY CO., LTD. Address before: 474450 Xichuan County Industrial Park, Henan, Nanyang Patentee before: Henan's new energy Polytron Technologies Inc |