CN203479464U - A lithium battery air impermeability detection apparatus - Google Patents

A lithium battery air impermeability detection apparatus Download PDF

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Publication number
CN203479464U
CN203479464U CN201320477531.0U CN201320477531U CN203479464U CN 203479464 U CN203479464 U CN 203479464U CN 201320477531 U CN201320477531 U CN 201320477531U CN 203479464 U CN203479464 U CN 203479464U
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CN
China
Prior art keywords
lithium battery
air
guide rail
support platform
test
Prior art date
Application number
CN201320477531.0U
Other languages
Chinese (zh)
Inventor
徐建波
陆南耀
董智斌
杨麟
张祥
李少军
冯旭东
Original Assignee
中航锂电(洛阳)有限公司
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Application filed by 中航锂电(洛阳)有限公司 filed Critical 中航锂电(洛阳)有限公司
Priority to CN201320477531.0U priority Critical patent/CN203479464U/en
Application granted granted Critical
Publication of CN203479464U publication Critical patent/CN203479464U/en

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Abstract

The utility model relates to a lithium battery air impermeability detection apparatus comprising detecting units. Each detecting unit comprises a supporting base plate used for placing a lithium battery to be detected and a supporting frame disposed vertically on the supporting base plate. A supporting platform moving in a guiding manner along the vertical direction is disposed on the supporting frame and is equipped with a testing structure. The testing structure comprises a testing cylinder used for enabling a testing piece connected with the testing structure to be in sealed force fit with the lithium battery to be measured. A guide rail extended along the vertical direction is disposed on the supporting frame. The supporting platform is in slide fit with the guide rail. The guide rail is provided with a locking structure used for limiting and fixing the supporting platform and the guide rail in the guiding moving direction of the supporting platform after the supporting platform is moved to a target position. The lithium battery air impermeability detection apparatus locks and fixes the supporting platform with the locking structure after the supporting platform is in place and achieves reliable locking and fixing.

Description

Lithium battery air-tightness detection device

Technical field

The utility model relates to a kind of lithium battery air-tightness detection device.

Background technology

Lithium battery is generally used after encapsulation under vacuum state, if the impermeability of lithium battery is bad, likely make the environment of lithium battery interior contact with atmospheric environment, thereby moisture in atmosphere and the electrolytic solution of lithium battery interior are reacted, thereby cause lithium battery fault, even explosion, affect serviceable life and the safety in utilization of lithium battery, so the detection of the impermeability of lithium battery is indispensable link during lithium battery is produced.

The structure of existing lithium battery air-tightness detection device as Granted publication number be the structure of disclosed proving installation in the Chinese patent " air tightness testing device for power lithium ion batteries " of CN 202126345U, this proving installation comprises for placing the support baseboard of lithium battery to be measured, on support baseboard, be provided with the battery location structure for adjusting lithium battery to be measured and it being clamped, on support baseboard, be vertically installed with bracing frame, on bracing frame, being provided with can be along the support platform of the guide piece guiding movement on bracing frame, in support platform, be provided with the test structure for lithium battery is tested, also comprise for drive support platform along the guide pole traveling priority on bracing frame to adjust between test structure and battery to be detected drive unit highly, this proving installation adopts and drives cylinder to drive, during test, drive air cylinder driven support platform to close lithium battery one side shifting to be measured, until the instrument connection compression fit of the test lead on test structure and lithium battery to be measured, but when the acting force of the suffered measuring air pressure of test structure is greater than while driving cylinder to the acting force of the support platform at test structure place, test structure promotes support platform and moves to the direction away from lithium battery to be measured under the reacting force of measuring air pressure, thereby the piston of support platform compressible drive cylinder is regained, even can promote to drive cylinder to move to the direction away from lithium battery to be measured along guide pole, finally make the test lead of test structure be less than the required theoretical snap-in force of lithium battery to the snap-in force of the instrument connection of lithium battery to be measured, even making between test lead and instrument connection can not press seal, thereby impact is to the bubble-tight accurate detection of lithium battery.

Utility model content

The purpose of this utility model is that position can blocked lithium battery air-tightness detection device after moving into place for a kind of support platform of proposition.

For addressing the above problem, the technical solution adopted in the utility model is:

Lithium battery air-tightness detection device, comprise detecting unit, described detecting unit comprises the bracing frame of vertically placing on the support baseboard of lithium battery to be detected and support baseboard for placing, on support frame as described above, be provided with the vertically support platform of guiding movement, in described support platform, be provided with test structure, described test structure comprises test block and the friction tight tested cylinder of lithium battery sealing pressing to be measured connecting on it for making, on support frame as described above, be provided with the guide rail vertically extending, described support platform is slided to turn and is assigned on described guide rail, on described guide rail, be provided with for after moving into place in support platform in the guiding movement direction of support platform by described support platform and the spacing locking structure being fixed together of guide rail.

Described locking structure in the dowel hole offered on described guide rail and described support platform, offer for installing the fixing limit pin hole of position-limitting pin and corresponding dowel hole locking.

Described support platform comprise for the slide plate with described guide rail slidable fit and with slide plate supporting plate connected vertically, described test structure is fixedly mounted on described supporting plate, described limit pin hole is the slotted hole extending along its glide direction of offering on described slide plate.

Described guide rail is the vertically linearly extended chute of offering on support frame as described above.

Also comprise on support baseboard vertically arrange for the axis of guide to described support platform guiding, on described supporting plate, offer for installing the described axis of guide with described direct bearing to the pilot hole coordinating.

Also comprise air-leakage detector, described detecting unit has two, two gas outlets of described air-leakage detector are communicated with the air intake opening of the corresponding tested cylinder of two detecting units by gas circuit respectively for controlling the piston rod of tested cylinder stretches, described test block is the test valve arranging on described tested cylinder piston rod, and the detection mouth of described air-leakage detector is communicated with the test valve in tested cylinder by gas circuit.

On described support baseboard, be provided with for the battery location structure to lithium battery clamping and positioning to be measured, described battery location structure is two clamps that arrange for relative spacing.

The lithium battery air-tightness detection device the utility model proposes, detecting unit can regulate according to the height of lithium battery to be measured the position of test structure, be equipped with the support platform of test structure along the guide rail guiding movement arranging on bracing frame, tested cylinder drives the test block connecting on it to coordinate laggard row impermeability to detect with lithium battery press seal to be measured, after support platform moves into place, employing locking structure is fixed together support platform and guide rail locking, the utility model adopts locking structure that its locking is fixed after support platform moves into place, locking is fixing reliable, avoided because support platform is oppositely mobile, making test structure reduce to affect air tightness test accuracy to the snap-in force of lithium battery to be measured in test process.

Further, many group dowel holes are set on guide rail, in support platform, are provided for installing the limit pin hole of position-limitting pin to coordinate with corresponding dowel hole block, simple in structure, convenient operation.

Further, the axis of guide coordinating with support platform guiding is set on support baseboard, test structure and the lithium battery to be measured be convenient in support platform align.

Further, pick-up unit comprises two detecting units, on each detecting unit, be respectively arranged with tested cylinder, adopt an air-leakage detector to be connected with two tested cylinder respectively, thereby can realize, control respectively the flexible of tested cylinder, can realize double and measure simultaneously, but both are separate, be independent of each other, detection efficiency is high.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of lithium battery air-tightness detection device of the present utility model.

Embodiment

The embodiment of lithium battery air-tightness detection device of the present utility model: as shown in Figure 1, this lithium battery air-tightness detection device comprises two detecting units, two detecting units are set up in parallel, each detecting unit comprises support baseboard 1, on support baseboard 1, be arranged at intervals with two groups for clamping the battery location structure 2 of lithium battery to be measured, every Battery pack location structure 2 comprises two clamps that relative spacing arranges, on support baseboard 1, be vertically provided with bracing frame 4, bracing frame 4 is provided with towards a side of battery location structure the chute extending along vertical lines, chute is arranged at intervals with many group dowel holes along its bearing of trend, on chute, slidable fit has slide plate 9, on slide plate 9, offer for install position-limitting pin with chute on the fixing limit pin hole of corresponding dowel hole locking, on slide plate 9, be vertically connected with supporting plate 6, slide plate 9 and supporting plate 6 are fixedly connected into L shaped by reinforcement 8, on supporting plate 6, also offer pilot hole, pilot hole on support baseboard 1 on corresponding each supporting plate 6 is provided with the axis of guide 3, the axis of guide 3 coordinates with the pilot hole guiding movement on supporting plate 6, on supporting plate 6, be also provided with tested cylinder 7, on the piston rod of tested cylinder 7, be connected with the test valve 5 for being connected with lithium battery to be measured, also comprise air-leakage detector 10, air-leakage detector 10 is connected respectively to control the flexible of each tested cylinder by gas circuit with the tested cylinder 7 of two detecting units, the detection mouth of air-leakage detector is communicated with and carries out impermeability detection with test valve 5 by pipeline.

When adopting this pick-up unit to detect lithium battery, lithium battery to be measured is placed on support baseboard 1 and adopts clamp to be fixedly clamped, according to the height mobile pallet 6 of lithium battery to be measured, make the slide plate being connected with supporting plate 6 slide and drive supporting plate 6 to move under the guide effect of the axis of guide along the chute of offering on bracing frame, when supporting plate 6 moves to lithium battery to be measured top correct position, adopt position-limitting pin to pierce in the corresponding dowel hole in the limit pin hole on slide plate 9 and on the chute of the bracing frame 4 corresponding with this limit pin hole is fixed together slide plate 9 and chute locking simultaneously, thereby supporting plate 6 is fixed on to this position, avoid supporting plate 6 in test process towards away from lithium battery one side shifting to be measured, distance adjustment is accurate, locking positioning is reliable, start air-leakage detector 10 and control the piston rod action of tested cylinder 7, the test valve 5 that makes to be connected on piston rod coordinates with the instrument connection press seal of lithium battery to be measured, press the test starting button of air-leakage detector, air-leakage detector starts the impermeability of lithium battery to be measured to detect, two detecting units are set in the present embodiment, therefore can realize simultaneously two lithium batteries are tested, thereby also can only drive a tested cylinder action only a lithium battery to be tested.

Adopt in the present embodiment two detecting units that are set up in parallel, can independently to two groups of lithium batteries, detect simultaneously, improve detection efficiency, in other embodiment of the present utility model, air-leakage detector also can only be controlled the tested cylinder action of a detecting unit, only one group of lithium battery is detected.

Guide rail is the chute extending along vertical lines arranging on bracing frame in the present embodiment, at other embodiment middle guide of the present utility model, also can adopt line slideway is set on bracing frame, and slide plate is fixedly connected with the slide block on line slideway.

In the present embodiment support platform be slidedly assemblied in slide plate in chute and with slide plate supporting plate connected vertically, in other embodiment of the present utility model, also can adopt the L shaped plate being wholely set.

In the present embodiment Stop structure adopt on the dowel hole that arranges on chute and slide plate, offer for installing the limit pin hole of position-limitting pin to coordinate with corresponding dowel hole block, in other embodiment of the present utility model, also can will on chute and slide plate, all be set to install the threaded hole of bolt; Or can on chute, offer corresponding recess hole, and at slide plate, towards chute one side, spring is set, on spring, connect the steel ball that can coordinate with corresponding recess hole block.

Claims (7)

1. lithium battery air-tightness detection device, comprise detecting unit, described detecting unit comprises the bracing frame of vertically placing on the support baseboard of lithium battery to be detected and support baseboard for placing, on support frame as described above, be provided with the vertically support platform of guiding movement, in described support platform, be provided with test structure, described test structure comprises test block and the friction tight tested cylinder of lithium battery sealing pressing to be measured connecting on it for making, it is characterized in that: on support frame as described above, be provided with the guide rail vertically extending, described support platform is slided to turn and is assigned on described guide rail, on described guide rail, be provided with for after moving into place in support platform in the guiding movement direction of support platform by described support platform and the spacing locking structure being fixed together of guide rail.
2. lithium battery air-tightness detection device according to claim 1, is characterized in that: described locking structure in the dowel hole offered on described guide rail and described support platform, offer for installing the fixing limit pin hole of position-limitting pin and corresponding dowel hole locking.
3. lithium battery air-tightness detection device according to claim 2, it is characterized in that: described support platform comprise for the slide plate with described guide rail slidable fit and with slide plate supporting plate connected vertically, described test structure is fixedly mounted on described supporting plate, and described limit pin hole is the slotted hole extending along its glide direction of offering on described slide plate.
4. lithium battery air-tightness detection device according to claim 1, is characterized in that: described guide rail is the vertically linearly extended chute of offering on support frame as described above.
5. lithium battery air-tightness detection device according to claim 3, it is characterized in that: also comprise on support baseboard vertically arrange for the axis of guide to described support platform guiding, on described supporting plate, offer for installing the described axis of guide with described direct bearing to the pilot hole coordinating.
6. according to the lithium battery air-tightness detection device described in any one in claim 1~5, it is characterized in that: also comprise air-leakage detector, described detecting unit has two, two gas outlets of described air-leakage detector are communicated with the air intake opening of the corresponding tested cylinder of two detecting units by gas circuit respectively for controlling the piston rod of tested cylinder stretches, described test block is the test valve arranging on described tested cylinder piston rod, and the detection mouth of described air-leakage detector is communicated with the test valve in tested cylinder by gas circuit.
7. lithium battery air-tightness detection device according to claim 6, it is characterized in that: on described support baseboard, be provided with for the battery location structure to lithium battery clamping and positioning to be measured, described battery location structure is two clamps that arrange for relative spacing.
CN201320477531.0U 2013-08-06 2013-08-06 A lithium battery air impermeability detection apparatus CN203479464U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320477531.0U CN203479464U (en) 2013-08-06 2013-08-06 A lithium battery air impermeability detection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320477531.0U CN203479464U (en) 2013-08-06 2013-08-06 A lithium battery air impermeability detection apparatus

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CN203479464U true CN203479464U (en) 2014-03-12

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104949802A (en) * 2015-06-17 2015-09-30 安徽江淮松芝空调有限公司 Water tank air tightness detection tool
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
CN106441735A (en) * 2016-10-18 2017-02-22 合肥国轩高科动力能源有限公司 Waterproof detection method for battery pack
CN106441744A (en) * 2016-12-13 2017-02-22 力信(江苏)能源科技有限责任公司 Leakage checking device of lithium ion square power battery and leakage checking process of leakage checking device
WO2018103225A1 (en) * 2016-12-09 2018-06-14 广州市永合祥自动化设备科技有限公司 Battery air-tightness detection system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104949802A (en) * 2015-06-17 2015-09-30 安徽江淮松芝空调有限公司 Water tank air tightness detection tool
CN104949802B (en) * 2015-06-17 2017-12-29 安徽江淮松芝空调有限公司 Water tank air-tightness detection tool
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
CN106441735A (en) * 2016-10-18 2017-02-22 合肥国轩高科动力能源有限公司 Waterproof detection method for battery pack
WO2018103225A1 (en) * 2016-12-09 2018-06-14 广州市永合祥自动化设备科技有限公司 Battery air-tightness detection system
CN106441744A (en) * 2016-12-13 2017-02-22 力信(江苏)能源科技有限责任公司 Leakage checking device of lithium ion square power battery and leakage checking process of leakage checking device

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