CN103134956B - A kind of fixture for testing soft-package battery electrical property - Google Patents

A kind of fixture for testing soft-package battery electrical property Download PDF

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Publication number
CN103134956B
CN103134956B CN201110398551.4A CN201110398551A CN103134956B CN 103134956 B CN103134956 B CN 103134956B CN 201110398551 A CN201110398551 A CN 201110398551A CN 103134956 B CN103134956 B CN 103134956B
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soft
package battery
testing
coupling arrangement
fixture
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CN201110398551.4A
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CN103134956A (en
Inventor
王驰伟
董尚尚
扈银龙
姜广
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Tianjin EV Energies Co Ltd
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Tianjin EV Energies Co Ltd
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Abstract

The invention discloses a kind of fixture for testing soft-package battery electrical property, comprise insulation mainboard, be arranged at positive pole coupling arrangement and the negative pole coupling arrangement of insulation mainboard, and positive pole coupling arrangement is corresponding with the positive pole ear of soft-package battery, negative pole coupling arrangement is corresponding with the negative lug of soft-package battery, and positive pole coupling arrangement and negative pole coupling arrangement include: the pad being connected to the mainboard that insulate; Be stacked and placed on the conductive wafer on pad upper strata, conductive wafer and pad are connected by two bolts being close to the two two-end part and installing, and the upper surface of conductive wafer is provided with at least two poles, and at least one pole is provided with external thread, and the testing current terminal of testing apparatus can be pressed between nut and conductive wafer by the suitable nut of external thread.Setting like this, the fixture for testing soft-package battery electrical property disclosed by the invention, it effectively can simplify the test process of soft-package battery and can provide stable test data.

Description

A kind of fixture for testing soft-package battery electrical property
Technical field
The present invention relates to battery performance test technical field, relating to a kind of fixture for testing soft-package battery electrical property more specifically.
Background technology
In recent years, along with the develop rapidly of economic construction, petroleum reserves in the world declines rapidly, and in order to alleviating energy crisis, electric motor car becomes one of ideal vehicles of people.
Soft-package battery is the core component of electric motor car, and the performance quality of soft-package battery directly has influence on the flying power of electric motor car.Electric performance test is the big event of inspection soft-package battery performance, below content will describe in detail to soft-package battery electric performance test mode in prior art.
Please refer to Fig. 1, Fig. 1 is testing apparatus and soft-package battery syndeton schematic diagram in prior art.
Soft-package battery comprises two positive pole ears 01 and negative lug 02, and these two lugs are by the metallic conductor extracted in battery core, and positive pole ear 01 and negative lug 02 are the contact points that soft-package battery carries out discharge and recharge.In prior art, in order to be connected with testing apparatus with negative lug 02 by positive pole ear 01 easily, usually on above-mentioned two lugs, offer through hole.The calibrating terminal of testing apparatus adopts Cu (copper) terminal usually, and two testing current terminals of testing apparatus are provided with the through hole corresponding with the through hole that above-mentioned two lugs are offered.When carrying out the testing current of soft-package battery, the connected mode of bolt and nut is adopted to connect one to one with positive pole ear 01 and negative lug 02 respectively two testing current terminals.
When carrying out the voltage tester of soft-package battery, only the voltage tester chuck of testing apparatus need be sandwiched in positive pole ear and the negative lug of soft-package battery bag.
But in prior art, the positive pole ear 01 of soft-package battery and negative lug 02 need be punched respectively and can carry out testing current, test step is more complicated.In addition, adopt the connected mode of bolt and nut to be connected with above-mentioned two lugs respectively by testing current terminal, the contact area between testing current terminal and lug is less, and then causes when carrying out high-current test, and test data is unstable.
Therefore, how to solve soft-package battery test process complexity in prior art and the problem of test data instability, become those skilled in the art's important technological problems to be solved.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of fixture for testing soft-package battery electrical property, it effectively can simplify the test process of soft-package battery and can provide stable test data.
The invention provides a kind of fixture for testing soft-package battery electrical property, comprise insulation mainboard, the positive pole coupling arrangement being arranged at described insulation mainboard and negative pole coupling arrangement, and described positive pole coupling arrangement is corresponding with the positive pole ear of described soft-package battery, described negative pole coupling arrangement is corresponding with the negative lug of described soft-package battery, and described positive pole coupling arrangement and described negative pole coupling arrangement include:
Be connected to the pad of described insulation mainboard;
Be stacked and placed on the conductive wafer on described pad upper strata, described conductive wafer and described pad are connected by two bolts being close to the two two-end part and installing, and the upper surface of described conductive wafer is provided with at least two poles, and pole is provided with external thread described at least one, and the testing current terminal of testing apparatus can be pressed between described nut and described conductive wafer by the suitable nut of described external thread.
Preferably, described positive pole coupling arrangement and described negative pole coupling arrangement are equipped with three described poles, and three described poles are uniformly distributed, and described in one of them, pole is provided with external thread.
Preferably, described insulation mainboard offers multiple thermal vias.
Preferably, described pad is copper backing.
Preferably, described conductive wafer is copper compressing tablet.
Preferably, placed separately between described positive pole coupling arrangement and described negative pole coupling arrangement have insulcrete.
Preferably, described pole is welded in the upper surface of described conductive wafer.
Preferably, described pad is adhered to described insulation mainboard.
The invention provides a kind of fixture for testing soft-package battery electrical property, comprise insulation mainboard, the positive pole coupling arrangement being arranged at described insulation mainboard and negative pole coupling arrangement, and described positive pole coupling arrangement is corresponding with the positive pole ear of described soft-package battery, described negative pole coupling arrangement is corresponding with the negative lug of described soft-package battery, and described positive pole coupling arrangement and described negative pole coupling arrangement include: the pad being connected to described insulation mainboard; Be stacked and placed on the conductive wafer on described pad upper strata, described conductive wafer and described pad are connected by two bolts being close to the two two-end part and installing, and the upper surface of described conductive wafer is provided with at least two poles, and pole is provided with external thread described at least one, and the testing current terminal of testing apparatus can be pressed between described nut and described conductive wafer by the suitable nut of described external thread.
Setting like this, use the fixture for testing soft-package battery electrical property provided by the invention, when testing, soft-package battery is positioned on insulation mainboard, and by the positive pole ear of soft-package battery and negative lug respectively with the positive pole coupling arrangement insulated on mainboard with negative pole coupling arrangement is corresponding places.Then, unscrew the bolt for attachment spacers and conductive wafer, making between conductive wafer and pad can accommodating positive pole ear and negative lug, the positive pole ear of soft-package battery and negative lug are inserted in the gap of conductive wafer and pad respectively, and screwing bolts, positive pole ear and negative lug can be pressed between conductive wafer and pad.Then the testing current terminal of testing apparatus is pressed between nut and conductive wafer by described nut, and the voltage tester terminal of testing apparatus is sandwiched in other pole.
Obviously, the fixture for testing soft-package battery electrical property provided by the invention, without the need to the positive pole ear of soft-package battery and negative lug being punched, and contact area between conductive wafer and lug is comparatively large, effectively can ensure the stability of measuring current.Therefore, a kind of fixture for testing soft-package battery electrical property provided by the invention, it effectively can simplify the test process of soft-package battery and can provide stable test data.
Accompanying drawing explanation
Fig. 1 is testing apparatus and soft-package battery syndeton schematic diagram in prior art;
Fig. 2 is for testing the structural representation of the fixture of soft-package battery electrical property in the specific embodiment of the invention.
Embodiment
The invention provides a kind of fixture for testing soft-package battery electrical property, it effectively can simplify the test process of soft-package battery and can provide stable test data.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 2, Fig. 2 is for testing the structural representation of the fixture of soft-package battery electrical property in the specific embodiment of the invention.
Fixture for testing soft-package battery electrical property provided in the present embodiment, comprises insulation mainboard 11, is arranged at positive pole coupling arrangement 12 and the negative pole coupling arrangement 13 of insulation mainboard 11.
It should be noted that, positive pole coupling arrangement 12 and negative pole coupling arrangement 13 respectively with the positive pole ear of soft-package battery and negative lug corresponding, namely positive pole coupling arrangement 12 is for connecting the positive pole ear of soft-package battery, and negative pole coupling arrangement 13 is for connecting the negative lug of soft-package battery.
Positive pole coupling arrangement 12 and negative pole coupling arrangement 13 include pad 14 and conductive wafer 15, and wherein, pad 14 is connected on insulation mainboard 11, and conductive wafer 15 is stacked and placed on the upper strata of pad 14.Conductive wafer 15 is connected by two bolts 16 with pad 14, and wherein, these two bolts 16 are close to the position at the both ends of conductive wafer 15 and pad 14 respectively.
The upper surface of conductive wafer 15 is provided with at least two poles 17, and wherein the outer peripheral face of at least one pole 17 is provided with external thread, and the testing current terminal of testing apparatus can be pressed between nut 18 and conductive wafer 15 by the suitable nut 18 of external thread.
Setting like this, use the fixture for testing soft-package battery electrical property provided in the present embodiment, when testing, soft-package battery is positioned on insulation mainboard 11, and by the positive pole ear of soft-package battery and negative lug respectively with the positive pole coupling arrangement 12 insulated on mainboard 11 with negative pole coupling arrangement 13 is corresponding places.
Then, unscrew for the bolt 16 of attachment spacers 14 with conductive wafer 15, making between conductive wafer 15 and pad 14 can accommodating positive pole ear and negative lug, the positive pole ear of soft-package battery and negative lug are inserted into respectively conductive wafer 15 with in the gap of pad 14, and screwing bolts 16, positive pole ear and negative lug can be pressed between conductive wafer 15 and pad 14.Then the testing current terminal of testing apparatus is pressed between nut 18 and conductive wafer 15 by nut 18, and the voltage tester terminal of testing apparatus is sandwiched in other pole.
Obviously, fixture for testing soft-package battery electrical property provided in the present embodiment, without the need to the positive pole ear of soft-package battery and negative lug being punched, and contact area between conductive wafer 15 and lug is comparatively large, effectively can ensure the stability of measuring current.Therefore, a kind of fixture for testing soft-package battery electrical property provided in the present embodiment, it effectively can simplify the test process of soft-package battery and can provide stable test data.
It should be noted that, due to the soft-package battery of different model, varying in size of its lug.Due to test time, the testing current terminal of testing apparatus and the distance between voltage tester terminal and lug less, measured data are more accurate.
Given this, the pole 17 that conductive wafer 15 provided in the present embodiment is arranged can be multiple, and the plurality of pole 17 is distributed in the upper surface of conductive wafer 15 equably, such as, pole 17 can be specially three, one of them is provided with external thread, to be connected with testing current terminal, three poles 17 are uniformly distributed in the upper surface of conductive wafer 15.
Setting like this, according to the size of soft-package battery lug, can select the pole of closer battery pole ear to be connected with the calibrating terminal of testing apparatus, effectively improves the range of application of test fixture provided in the present embodiment.
Certainly, pole 17 provided in the present embodiment also can be other quantity, such as, four, five etc., and be provided with externally threaded pole and also can be two, three etc., the concrete quantity of this embodiment to pole does not do concrete restriction, and its concrete quantity can be thoroughly done away with actual conditions and specifically set.
In addition, it should be noted that, insulation mainboard 11 is for propping up soft-package battery, and in test process, soft-package battery meeting distribute heat, the heat distributed to make soft-package battery is dissipated to the external world as early as possible, raises impact test data to avoid soft-package battery temperature.
Test fixture provided in the present embodiment, its insulation mainboard 11 offers multiple thermal vias 111, setting like this, when carrying out soft-package battery electric performance test, the heat that soft-package battery distributes is dissipated in outside air as early as possible by thermal vias 111, effectively improves the heat dispersion of test fixture.
In addition, it should be noted that, pad 14 provided in the present embodiment can be specially copper gasket, be to be understood that, copper gasket has good electric conductivity, and the electric current that soft-package battery is released conducts to conductive wafer 15 by copper gasket, and then conducts to the calibrating terminal of testing apparatus, copper gasket effectively can reduce the loss of electric current in conductive process, effectively ensure that test accuracy.
In addition, in order to reduce the loss of electric current in conductive process, conductive wafer 15 provided in the present embodiment also can be copper compressing tablet.Certainly, pad 14 and conductive wafer 15 also can be pad and the conductive wafer of other material, and its need have good electric conductivity.
In order to prevent in test process, positive pole coupling arrangement 12 and negative pole coupling arrangement 13 come in contact, and then cause the problem of battery short circuit, fixture for testing soft-package battery electrical property provided in the present embodiment, placed separately between its positive pole coupling arrangement 12 and negative pole coupling arrangement 13 have insulcrete 19.This insulcrete 19 can be specially plank, certainly, also can be the insulcrete of other material, such as, and electro-insulating rubber, insulating glass etc.
Setting like this, is interval with insulcrete 19 in positive pole coupling arrangement 12 and negative pole coupling arrangement 13, effectively can evade positive pole coupling arrangement 12 and come in contact with negative pole coupling arrangement 13, and then cause the problem of battery short circuit.
In addition, the fixture for testing soft-package battery electrical property provided in the present embodiment, its pole 17 is connected to the upper surface of conductive wafer 15 by the mode of welding, and certainly, also by alternate manner, such as, bonding, casting such as to connect at the mode.In addition, pad 14 is connected to insulation mainboard 11 by bonding mode, and certainly, pad 14 is also connected to insulation mainboard 11 by modes such as riveted joint, screw connections.
Above a kind of fixture for testing soft-package battery electrical property provided by the present invention is described in detail, apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.

Claims (8)

1. one kind for testing the fixture of soft-package battery electrical property, it is characterized in that, comprise insulation mainboard, the positive pole coupling arrangement being arranged at described insulation mainboard and negative pole coupling arrangement, and described positive pole coupling arrangement is corresponding with the positive pole ear of described soft-package battery, described negative pole coupling arrangement is corresponding with the negative lug of described soft-package battery, and described positive pole coupling arrangement and described negative pole coupling arrangement include:
Be connected to the pad of described insulation mainboard;
Be stacked and placed on the conductive wafer on described pad upper strata, described conductive wafer and described pad are connected by two bolts being close to the two two-end part and installing, and the upper surface of described conductive wafer is provided with at least two poles, and pole is provided with external thread described at least one, and the testing current terminal of testing apparatus can be pressed between described nut and described conductive wafer by the suitable nut of described external thread.
2. a kind of fixture for testing soft-package battery electrical property as claimed in claim 1, it is characterized in that, described positive pole coupling arrangement and described negative pole coupling arrangement are equipped with three described poles, and three described poles are uniformly distributed, and described in one of them, pole is provided with external thread.
3. a kind of fixture for testing soft-package battery electrical property as claimed in claim 1, is characterized in that, described insulation mainboard offers multiple thermal vias.
4. a kind of fixture for testing soft-package battery electrical property as claimed in claim 3, it is characterized in that, described pad is copper backing.
5. a kind of fixture for testing soft-package battery electrical property as claimed in claim 4, it is characterized in that, described conductive wafer is copper compressing tablet.
6. a kind of fixture for testing soft-package battery electrical property as described in any one of claim 1-5, is characterized in that, placed separately between described positive pole coupling arrangement and described negative pole coupling arrangement have insulcrete.
7. a kind of fixture for testing soft-package battery electrical property as claimed in claim 6, it is characterized in that, described pole is welded in the upper surface of described conductive wafer.
8. a kind of fixture for testing soft-package battery electrical property as claimed in claim 7, it is characterized in that, described pad is adhered to described insulation mainboard.
CN201110398551.4A 2011-12-05 2011-12-05 A kind of fixture for testing soft-package battery electrical property Active CN103134956B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103487605B (en) * 2013-09-27 2015-12-02 国家电网公司 A kind of lithium ion battery safety instrumentation
CN104764907A (en) * 2015-03-18 2015-07-08 江苏乐能电池股份有限公司 Flexible package lithium ionized clamp
CN105548903A (en) * 2016-01-08 2016-05-04 北京长城华冠汽车科技股份有限公司 Battery tab clamp, battery test mounting table, and installation method during battery test
CN112345845A (en) * 2020-09-25 2021-02-09 华东光电集成器件研究所 Microminiature encapsulation circuit aging clamp

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CN2607582Y (en) * 2003-03-15 2004-03-24 比亚迪股份有限公司 Cell measuring clamp
CN201945608U (en) * 2011-01-14 2011-08-24 杭州杭可精密仪器有限公司 Clamp device for lithium battery test
CN202013914U (en) * 2011-04-22 2011-10-19 马军玲 Flat connector for pole pieces of high-current polymer lithium ion battery pack

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Publication number Priority date Publication date Assignee Title
IE940996A1 (en) * 1994-07-22 1996-01-24 Enda Brennan A battery pack testing apparatus
CN2572414Y (en) * 2002-09-28 2003-09-10 深圳市中兴通讯股份有限公司 Universal plate shape battery test clamp
CN2607582Y (en) * 2003-03-15 2004-03-24 比亚迪股份有限公司 Cell measuring clamp
CN201945608U (en) * 2011-01-14 2011-08-24 杭州杭可精密仪器有限公司 Clamp device for lithium battery test
CN202013914U (en) * 2011-04-22 2011-10-19 马军玲 Flat connector for pole pieces of high-current polymer lithium ion battery pack

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