CN203551208U - A variable-capacity apparatus for testing the air impermeability of a lithium ion battery - Google Patents
A variable-capacity apparatus for testing the air impermeability of a lithium ion battery Download PDFInfo
- Publication number
- CN203551208U CN203551208U CN201320661219.7U CN201320661219U CN203551208U CN 203551208 U CN203551208 U CN 203551208U CN 201320661219 U CN201320661219 U CN 201320661219U CN 203551208 U CN203551208 U CN 203551208U
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- Prior art keywords
- storehouse
- testing
- lithium ion
- ion battery
- pedestal
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Abstract
The utility model discloses a variable-capacity apparatus for testing the air impermeability of a lithium ion battery. The apparatus is mainly characterized by comprising a pedestal (1), a testing cabin (3) fixed on the pedestal (1) and including a battery inlet (2), a hydraulic pump (4) fixed on the pedestal (1), a cabin cover (5) fixedly connected with a push rod of the hydraulic pump (4) and matched with the battery inlet (2), and an inflator pump (6) disposed on the outer wall of the testing cabin (3). The testing cabin (3) comprises a cabin housing (31) and a pressurized sealing bag (32) disposed inside the cabin housing (31), wherein the opening end of the pressurized sealing bag (32) is in sealed connection with the edge of the battery inlet (2). The volume of the testing cabin can be adjusted freely according to realities such that a defect is overcome that the conventional volume cannot be changed. Therefore, the apparatus has strong practicality.
Description
Technical field
The utility model relates to a kind of lithium ion battery device for testing, specifically refers to a kind of varying capacity lithium ion battery airtightness device for testing.
Background technology
The quality of vehicle-mounted great-capacity power battery performance affects the overall performance of electric automobile, if the sealing of high capacity lithium ion battery is poor, will affect serviceable life and the security of lithium ion battery, therefore, develop a kind of device that can fast detecting lithium ion battery airtightness and there is great practice significance for the life-span and the security that improve lithium ion battery.Although have on the market some can detect the device of lithium ion battery airtightness at present, but these apparatus cost costs are comparatively expensive, and the sealing property of these proving installations itself neither be very desirable, so its data that test out and the certain error of physical presence, can not extensively promote and use.Meanwhile, the volume of these proving installations is all fixed, and can not adjust according to demand.
Utility model content
The purpose of this utility model is to overcome at present that existing expensive, the sealing of device of lithium ion battery airtightness own is strong, test data and the larger error of real data existence for testing, and the fixing uncontrollable defect of volume, provide a kind of not only simple in structure, can significantly dwindle error, and its volume varying capacity lithium ion battery airtightness device for testing that can also regulate.
To achieve these goals, the technical solution adopted in the utility model is as follows: a kind of varying capacity lithium ion battery airtightness device for testing, mainly by pedestal, be fixed on pedestal and there is the test storehouse of battery import, be fixed on the hydraulic pump on pedestal, the Cang Gai that is fixedly linked with the push rod of hydraulic pump and matches with battery import, and the inflator pump being arranged on the outer wall in test storehouse forms; Described test storehouse is by storehouse shell, be arranged on shell inside, storehouse and openend and seal with battery inlet edge the pressurized seal bag being connected, be arranged on the piston sheet that storehouse shell is inner and can be free to slide along its inwall, one end and piston sheet are connected to a fixed, the other end stretches out in the screw rod outside the shell of storehouse, and are positioned at the rotary nut composition that storehouse shell is outside and be meshed with screw rod; Described inflator pump is connected with the inside of pressurized seal bag by pipeline.
In order to ensure result of use, described piston sheet is positioned at pressurized seal bag and the inner formed closed cavity of storehouse shell; Meanwhile, on inflator pump, be also provided with tensimeter.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utility model one-piece construction is very simple, uses and makes very convenient.
(2) the utility model adopts hydraulic pump to be used as the thrust of Cang Gai, therefore can guarantee that Cang Gai and test storehouse can tightly combine.
(3) volume in the utility model test storehouse can be adjusted arbitrarily according to actual conditions, thoroughly overcome the unalterable defect of traditional volume, so its practicality is very strong.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model.
Fig. 2 is the cross-sectional view in the utility model test storehouse.
Wherein, the Reference numeral title in accompanying drawing is respectively:
1-pedestal, the import of 2-battery, 3-test storehouse, 4-hydraulic pump, 5-Cang Gai, 6-inflator pump, 7-tensimeter, 31-storehouse shell, 32-pressurized seal bag, 33-piston sheet, 34-screw rod, 35-rotary nut.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, pedestal 1 of the present utility model is prepared from by metal material, is fixed with test storehouse 3 and hydraulic pump 4 on this pedestal 1.Hydraulic pump 4 maintains 10～20cm spacing apart from test storehouses 3, and structure and the size of storehouse lid 5 match with test storehouse 3, and this storehouse lid 5 is connected to a fixed with the push rod of hydraulic pump 4, to guarantee that storehouse covers 5 promotions that can be subject to hydraulic pump 4.
Test storehouse 3 is provided with the battery import 2 of putting into for lithium ion battery, and as shown in Figure 2, this test storehouse 3 is comprised of storehouse shell 31, pressurized seal bag 32, piston sheet 33, screw rod 34 and rotary nut 35 cross-section structure in whole test storehouse 3.Wherein, pressurized seal bag 32 is arranged at the inside of storehouse shell 31, and its openend is connected with the edge seal of battery import 2, thereby by this pressurized seal bag 32, whole storehouse shell 31 is divided into two cavitys, one is pressurized seal bag 32 inner chambers, and another is pressurized seal bag 32 and the inner formed closed cavity of storehouse shell 31.33 of piston sheets are arranged in this closed cavity, and this piston sheet 33 can be free to slide along the inwall of storehouse shell 31.One end of screw rod 34 and piston sheet 33 are fixedly linked, and the other end stretches out in outside storehouse shell 31, and rotary nut 35 is positioned at storehouse shell 31 outsides and meshes with screw rod 34.During use, only need to turn this rotary nut 35 and just can promote piston sheet 33 and move left and right in the inside of storehouse shell 31, thereby change the volume in test storehouse 3.
Be arranged on the inflator pump 6 of test 3 outsides, storehouse for inflating in test storehouse 3, and inflator pump 6 need to be connected with the inside of pressurized seal bag 32 by pipeline, with the intracavity inter-connection of pressurized seal bag 32, to guarantee that gas can only be filled in this pressurized seal bag 32 inside.In order to ensure security performance, this test storehouse 3 and storehouse lid 5 all will be shaped by metal material integrated injection molding, meanwhile, also will be provided with the tensimeter 7 that embodies test storehouse 3 air pressure inside value sizes on inflator pump 6.
As mentioned above, just can realize preferably the utility model.
Claims (3)
1. a varying capacity lithium ion battery airtightness device for testing, it is characterized in that, mainly by pedestal (1), be fixed on pedestal (1) and go up and have the test storehouse (3) of battery import (2), be fixed on the hydraulic pump (4) on pedestal (1), the Cang Gai (5) that is fixedly linked with the push rod of hydraulic pump (4) and matches with battery import (2), and the inflator pump (6) being arranged on the outer wall in test storehouse (3) forms; Described test storehouse (3) is by storehouse shell (31), be arranged on the pressurized seal bag (32) that storehouse shell (31) inside and openend are connected with battery import (2) edge seal, be arranged on the piston sheet (33) that storehouse shell (31) is inner and can be free to slide along its inwall, one end and piston sheet (33) are connected to a fixed, the other end stretches out in the outer screw rod (34) of storehouse shell (31), and are positioned at rotary nut (35) composition that storehouse shell (31) is outside and be meshed with screw rod (34); Described inflator pump (6) is connected with the inside of pressurized seal bag (32) by pipeline.
2. a kind of varying capacity lithium ion battery airtightness device for testing according to claim 1, is characterized in that, described piston sheet (33) is positioned at pressurized seal bag (32) and the inner formed closed cavity of storehouse shell (31).
3. a kind of varying capacity lithium ion battery airtightness device for testing according to claim 1 and 2, is characterized in that, is also provided with tensimeter (7) on inflator pump (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661219.7U CN203551208U (en) | 2013-10-24 | 2013-10-24 | A variable-capacity apparatus for testing the air impermeability of a lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661219.7U CN203551208U (en) | 2013-10-24 | 2013-10-24 | A variable-capacity apparatus for testing the air impermeability of a lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203551208U true CN203551208U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320661219.7U Expired - Fee Related CN203551208U (en) | 2013-10-24 | 2013-10-24 | A variable-capacity apparatus for testing the air impermeability of a lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203551208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941496A (en) * | 2017-11-30 | 2018-04-20 | 中航锂电（江苏）有限公司 | Lithium battery pressure-bearing tests gas explosion frock |
-
2013
- 2013-10-24 CN CN201320661219.7U patent/CN203551208U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941496A (en) * | 2017-11-30 | 2018-04-20 | 中航锂电（江苏）有限公司 | Lithium battery pressure-bearing tests gas explosion frock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20141024 |
|
| EXPY | Termination of patent right or utility model |