CN108398111A - A kind of method for soft package lithium ion power thickness measurement device - Google Patents

A kind of method for soft package lithium ion power thickness measurement device Download PDF

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Publication number
CN108398111A
CN108398111A CN201710068047.5A CN201710068047A CN108398111A CN 108398111 A CN108398111 A CN 108398111A CN 201710068047 A CN201710068047 A CN 201710068047A CN 108398111 A CN108398111 A CN 108398111A
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CN
China
Prior art keywords
lifter plate
pressure
rack
lithium ion
soft package
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Application number
CN201710068047.5A
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Chinese (zh)
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CN108398111B (en
Inventor
蒋伟
周朝杰
李之洋
沈利江
徐奕鑫
徐炜东
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Wanxiang A123 Systems Asia Co Ltd
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Wanxiang Group Corp
Wanxiang A123 Systems Asia Co Ltd
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Priority to CN201710068047.5A priority Critical patent/CN108398111B/en
Publication of CN108398111A publication Critical patent/CN108398111A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/08Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a kind of method for soft package lithium ion power thickness measurement devices, including rack, sample placement platform, thickness detection mechanism, pressure simulation mechanism and industrial personal computer, sample placement platform, pressure simulation mechanism is set in rack, thickness detection mechanism includes lifter plate, test board, lifting drive and displacement sensor, lifting drive is fixedly arranged in rack, lifter plate is liftably slidably connected in rack and is sequentially connected with lifting drive, test board is located at below lifter plate and is slidably connected with lifter plate, displacement sensor is fixed on lifter plate, the probe of displacement sensor is located at below lifter plate, pressure simulation mechanism is located above thickness detection mechanism, thickness detection mechanism, pressure simulation mechanism accesses industrial personal computer.The present invention can accurately measure the thickness of method for soft package lithium ion power.

Description

A kind of method for soft package lithium ion power thickness measurement device
Technical field
The present invention relates to a kind of battery detection equipments, more specifically, it relates to which a kind of method for soft package lithium ion power is thick Spend measuring apparatus.
Background technology
Method for soft package lithium ion power needed before putting into battery modules carry out thickness be detected, but due to Soft Roll lithium from Sub- power battery surface is soft, after putting into battery modules, just has metastable shape and ruler under battery modules constraint It is very little, therefore sort preceding no suitable method after Battery formation and detect thickness.Existing method for soft package lithium ion power thickness Measurement method is to be measured in a conventional manner with vernier caliper, but nonrigid battery surface can not provide fixed vernier caliper Clamping face applies different power to battery surface and goes Thickness Measurement by Microwave, different detected values just had, due to that can not simulate single battery Surface installed in battery modules after pressure-bearing situation, be difficult to which kind of clear slide calliper rule should be secured to when blocking battery with vernier caliper Degree could obtain the actual parameter of battery, thus measure in this way the result is that inaccurate, if the battery for having thickness exceeded is just It cannot find, defective products can flow into module line and be assembled, and eventually cause that battery modules thickness is exceeded, and module plastic stent is heaved Deformation, influences battery overall performance.The utility model of Publication No. CN200944041 disclosed a kind of lithium on 5th in September in 2007 Ion battery thickness detection apparatus, it is characterised in that by pedestal, test block, calliper is constituted, pedestal be in ramped shaped, along slope both sides Be correspondingly provided with support upwards test block, equipped with cylindrical calliper both ends and pedestal supported on both sides testing, block is corresponding is fixedly connected;Circle Gap is equipped between cylindricality calliper and base upper surface;Base upper surface is respectively equipped with insulating tape with cylindrical calliper surface Layer.The apparatus structure is simple, easy to use, will not cause battery short circuit, Thickness sensitivity accurate in detection.It can be widely used for The Inspection of Thickness of various cell production process and sorting, examination criteria are reliable.Detection can be reached not by replacing thickness measuring calliper The purpose of stack pile battery, it is simple and easy to do.And the surface quality of battery is effectively ensured and reduces lithium ion battery measuring thickness device Manufacturing cost.It is aobvious especially for the surface quality effect of the efficiency and battery that improve polymer Li-ion battery Thickness sensitivity It.Meanwhile easily forming the scale of industry.But the utility model is more demanding to the surface appearance of battery, while it cannot root Pressure size is adjusted according to the difference in thickness of battery, causes measurement thickness inconsistent, it is difficult to provide accurate data to module design.
Invention content
Existing method for soft package lithium ion power method for measuring thickness can not simulate single battery surface in battery modules Pressure-bearing situation after installation, measurement result is inaccurate, and easily leading to the exceeded battery of thickness cannot be detected, after causing assembling Battery modules thickness is exceeded, influences battery overall performance, and to overcome this defect, the present invention provides one kind can simulating single electricity Pool surface installed in battery modules after pressure-bearing situation, to accurately measure method for soft package lithium ion power thickness, it is ensured that group Battery modules thickness after dress method for soft package lithium ion power thickness measurement device up to standard.
The technical scheme is that:A kind of method for soft package lithium ion power thickness measurement device, including rack, sample are put Horizontalization platform, thickness detection mechanism, pressure simulation mechanism and industrial personal computer, sample placement platform, pressure simulation mechanism are set in rack, Thickness detection mechanism includes lifter plate, test board, lifting drive and displacement sensor, and lifting drive is fixedly arranged on rack On, lifter plate is liftably slidably connected in rack and is sequentially connected with lifting drive, and test board is located under lifter plate It being slidably connected just and with lifter plate, displacement sensor is fixed on lifter plate, and the probe of displacement sensor is located at below lifter plate, Pressure simulation mechanism is located above thickness detection mechanism, and thickness detection mechanism, pressure simulation mechanism access industrial personal computer.Use this When method for soft package lithium ion power thickness measurement device measures method for soft package lithium ion power, battery is placed on sample placement platform On, under the control of industrial personal computer, thickness detection mechanism starts, and test board is fallen with lifter plate, pushes down battery sample to be measured, surveys Battery sample under test plate (panel) can be such that test board is in a height, and the probe of displacement sensor can be pressed at the top of test board, from And the thickness of battery sample is reflected by the numerical value that displacement sensor measures.Due to being sliding between test board and lifter plate Connection, test board can voluntarily adapt to the thickness of battery sample, be kept in contact with battery sample but to the pressure of battery sample compared with Small, hereafter pressure simulation mechanism starts to work, and is gradually pressurizeed to battery sample until reaching the reality with battery in battery modules Pressure-bearing value in border is equal or close, and the registration that displacement sensor at this time show is the battery thickness under battery modules restrained condition Degree.The present invention has fully considered size meeting after method for soft package lithium ion power is installed in battery modules when measuring cell thickness The situation changed, and the pressure-bearing situation after install in battery modules by simulating single battery surface for measurement provide close to The measuring condition of real working condition, therefore it is also closer to reality to measure the method for soft package lithium ion power thickness obtained in the case The more accurate numerical value on border.
Preferably, the pressure simulation mechanism includes pressure apparatus and the pressure sensor that can be touched by pressure apparatus, Pressure apparatus is fixedly arranged on frame top, and pressure sensor is fixedly arranged on a pressure conduction plate, and pressure conduction plate is connected to test board Top.Pressure apparatus is for providing pressure, and the pressure that pressure apparatus applies directly acts on pressure sensor, further through pressure Sensor, pressure conduction plate are transmitted on test board, therefore plate is eventually transferred to battery to the pressure of pressure apparatus offer after tested On sample, and pressure size can directly be read by pressure sensor and feed back to industrial personal computer, be controlled pressure size, with The pressure value suffered in battery modules close to battery obtains preferably simulation effect.
More connecting rods are connected with preferably, sliding to wear on lifter plate, connecting rod top is connected on pressure conduction plate, even Extension bar bottom end is connected on test board.Connecting rod is connected on test board, while being slided to wear again and be connected on lifter plate, therefore is passed through The connection of connecting rod, test board are realized with lifter plate and are slidably connected.
Preferably, connecting rod is equipped with upper limit boss and lower limit baffle, upper limit boss is located above lifter plate, lower limit stop Plate is located at below lifter plate.Upper limit boss is set and lower limit baffle can be to the range of the relative motion between test board and lifter plate It is defined, test board under free state is prevented to be detached from lifter plate without limitation downslide, it is close with lifter plate prevented also from test board When it is unrestricted cause occur rigid contact and damage.
Preferably, being installed with sliding rail in rack, lifter plate is connect by sliding block with sliding rail.Pass through matching for sliding block and sliding rail It closes, lifter plate is slidably connected with rack with relatively simple structure realization.
Preferably, the lifting drive is a lifting cylinder, lifting cylinder is fixed on the rack, the work of the cylinder Stopper rod is connected on lifter plate.It is lifted with air cylinder drives lifting plate, it is simple in structure, it is easy to implement.
Preferably, the pressure apparatus is a pressurized cylinder, pressurized cylinder is fixed on a supporting plate, and supporting plate is fixed on machine On frame.It is pressurizeed using cylinder as pressure apparatus to battery sample, it is simple in structure, it is easy to implement.
Preferably, rack is equipped with touch control screen and industry control display screen.Touch control screen is set, space can be provided Small, the high operating device of functional integration is occupied, the tailored appearanceization and operation judicial convenience of equipment are contributed to.Setting industry control is shown Screen can be intuitively displayed the running state parameter and measurement parameter of equipment, is monitored convenient for the operating status to equipment, with And directly acquire measurement result.
The beneficial effects of the invention are as follows:
Accuracy of measurement is high.After the present invention can be installed by pressure simulation mechanism analog single battery surface in battery modules Pressure-bearing situation carries out the thickness of method for soft package lithium ion power in the case to measure the measuring condition provided close to real working condition Degree measures, and acquired results are closer to truthful data, accuracy higher.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the present invention;
Fig. 2 is the front view of the present invention;
Fig. 3 is a kind of structural schematic diagram of thickness detection mechanism in the present invention;
Fig. 4 is the structural schematic diagram at another visual angle of thickness detection mechanism in the present invention;
Fig. 5 is the side view of thickness detection mechanism in the present invention.
In figure, 1- racks, 2- sample placement platforms, 3- lifter plates, 4- test boards, 5- lifting cylinders, 6- displacement sensors, 7- pressue devices, 8- pressure sensors, 9- pressure conduction plates, 10- connecting rods, 11- upper limit boss, 12- lower limit baffles, 13- are slided Rail, 14- supporting plates, 15- pressure heads, 16- touch control screens, 17- industry control display screens, 18- power master control platforms, 19- industrial personal computers, 20- are visited Head.
Specific implementation mode
The invention will be further described for specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1:
As shown in Figures 1 to 5, a kind of method for soft package lithium ion power thickness measurement device, including rack 1, sample placement platform 2, thickness detection mechanism, pressure simulation mechanism and industrial personal computer 19, sample placement platform 2, pressure simulation mechanism are set in rack 1, Thickness detection mechanism includes lifter plate 3, test board 4, lifting drive and four displacement sensors 6, and lifting drive is solid In rack 1, lifter plate 3 is liftably slidably connected in rack 1 and is sequentially connected with lifting drive, test board 4 It is slidably connected positioned at 3 lower section of lifter plate and with lifter plate 3, displacement sensor 6, which runs through, to be fixed on lifter plate 3, displacement sensor 6 Probe 20 be located at the lower section of lifter plate 3, pressure simulation mechanism is located at thickness detection mechanism top, thickness detection mechanism, pressure mould Quasi- mechanism accesses industrial personal computer 19.The pressure simulation mechanism includes pressure apparatus and the pressure sensing that can be touched by pressure apparatus Device 8, pressure apparatus are fixedly arranged on 1 top of rack, and pressure sensor 8 is fixedly arranged on the pressure conduction plate 9 of a square, pressure conduction Plate 9 is connected to 4 top of test board.It is opened on lifter plate 3 there are four the company of the wearing hole for being arranged in square, is respectively slided respectively in the company of wearing hole It wears and is connected with a connecting rod 10,10 top of connecting rod is connected on four angles of pressure conduction plate 9, and 10 bottom end of connecting rod is connected in survey On test plate (panel) 4.Four displacement sensors 6 are also arranged in square and are centered around outside four connecting rods 10.Connecting rod 10 is equipped with upper Boss 11 and lower limit baffle 12 are limited, upper limit boss 11 is located at 3 top of lifter plate, and lower limit baffle 12 is located at 3 lower section of lifter plate.Rack It is respectively installed with a sliding rail 13 on the symmetrical rear column of two of 1, a pair of of sliding block is fixed on 3 rear of lifter plate, lifter plate 3 is logical Sliding block is crossed to connect with sliding rail 13.The lifting drive is a lifting cylinder 5, and lifting cylinder 5 is fixed in rack 1, is lifted The piston rod of cylinder 5 is connected on lifter plate 3.The pressure apparatus is a pressurized cylinder 7, and pressurized cylinder 7 is fixed on a supporting plate On 14, supporting plate 14 is fixed in rack 1, and straight down, screw thread connects the piston rod of pressurized cylinder 7 on the piston rod of pressurized cylinder 7 It is connected to pressure head 15, the position on the piston rod of pressurized cylinder 7 of pressure head 15 is adjustable.1 positive Middle face of rack is equipped with power master control platform 18, Power master control platform 18 is equipped with startup/power-off button and barcode scanner, and 1 top of rack is equipped with touch control screen 16 and industry control is aobvious Display screen 17.
Before measuring battery sample, lifting cylinder 5 first pushes once, and test board 4 is made to touch product placement platform 2, Then the numerical value of displacement sensor 6 is calibrated to 0.00.When starting to measure, it will be positioned over after tested battery sample scanning bar code Under test board 4, under industrial personal computer control, lifting cylinder 5 drives the decline of test board 4 to touch battery sample, then pressurized cylinder 7 Apply and the pressure compaction test board 4 as battery, the battery of different model are needed to use different pressure in battery modules Value, pressure limit 2940N-4900N, pressure is monitored in real time by pressure sensor 8 to be fed back.Four are mounted on different location To test board 4, displacement sensor 6 is just transferred to thickness value in industrial personal computer 19 and and should the probe contacts of displacement sensor 6 The bar code of battery is matched, and numerical value and follow-up retrospect are conveniently transferred.
Embodiment 2:
Connecting rod 10 is the six roots of sensation.Remaining is the same as embodiment 1.

Claims (8)

1. a kind of method for soft package lithium ion power thickness measurement device, it is characterized in that including rack(1), sample placement platform(2)、 Thickness detection mechanism, pressure simulation mechanism and industrial personal computer, sample placement platform(2), pressure simulation mechanism be set to rack(1)On, Thickness detection mechanism includes lifter plate(3), test board(4), lifting drive and displacement sensor(6), lifting drive It is fixedly arranged on rack(1)On, lifter plate(3)Liftably it is slidably connected to rack(1)Above and with lifting drive it is sequentially connected, Test board(4)Positioned at lifter plate(3)Lower section and and lifter plate(3)It is slidably connected, displacement sensor(6)It is fixed on lifter plate(3) On, displacement sensor(6)Probe be located at lifter plate(3)Lower section, pressure simulation mechanism are located above thickness detection mechanism, thickness Testing agency, pressure simulation mechanism access industrial personal computer.
2. method for soft package lithium ion power thickness measurement device according to claim 1, it is characterized in that the pressure simulation Mechanism includes pressure apparatus and the pressure sensor that can be touched by pressure apparatus(8), pressure apparatus is fixedly arranged on rack(1)Top, Pressure sensor(8)It is fixedly arranged on a pressure conduction plate(9)On, pressure conduction plate(9)It is connected to test board(4)Top.
3. method for soft package lithium ion power thickness measurement device according to claim 2, it is characterized in that lifter plate(3)Upper cunning Dynamic wear is connected with more connecting rods(10), connecting rod(10)Top is connected in pressure conduction plate(9)On, connecting rod(10)Bottom end is connected In test board(4)On.
4. method for soft package lithium ion power thickness measurement device according to claim 3, it is characterized in that connecting rod(10)On Equipped with upper limit boss(11)With lower limit baffle(12), upper limit boss(11)Positioned at lifter plate(3)Top, lower limit baffle(12)It is located at Lifter plate(3)Lower section.
5. method for soft package lithium ion power thickness measurement device according to claim 1, it is characterized in that rack(1)It is upper fixed There is sliding rail(13), lifter plate(3)Pass through sliding block and sliding rail(13)Connection.
6. method for soft package lithium ion power thickness measurement device according to claim 1, it is characterized in that the lifting drives Device is a lifting cylinder(5), lifting cylinder(5)It is fixed on rack(1)On, the piston rod of the cylinder is connected to lifter plate(3) On.
7. method for soft package lithium ion power thickness measurement device according to claim 2, it is characterized in that the pressure apparatus For a pressurized cylinder(7), pressurized cylinder(7)It is fixed on a supporting plate(14)On, supporting plate(14)It is fixed on rack(1)On.
8. method for soft package lithium ion power thickness measurement device according to any one of claim 1 to 7, it is characterized in that machine Frame(1)It is equipped with touch control screen and industry control display screen.
CN201710068047.5A 2017-02-07 2017-02-07 Soft packet of lithium ion power battery thickness measurement equipment Active CN108398111B (en)

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Application Number Priority Date Filing Date Title
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CN108398111B CN108398111B (en) 2020-03-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112082447A (en) * 2020-08-01 2020-12-15 湖南有色金属职业技术学院 Displacement monitoring device in underground engineering construction
CN114951007A (en) * 2021-07-16 2022-08-30 杭州多善科技有限公司 Device for measuring and screening thickness dimension of battery with automatic data reading and storing functions
CN116399693A (en) * 2023-01-13 2023-07-07 东莞市钰成精密机械有限公司 Pressure maintaining box pressure point inspection equipment

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CN203534562U (en) * 2013-10-28 2014-04-09 中航锂电(洛阳)有限公司 Square lithium battery electrical core constant voltage thickness measuring device
CN203785652U (en) * 2014-03-27 2014-08-20 深圳市美拜电子有限公司 Electrical core thickness and width test machine
KR20140144425A (en) * 2013-06-11 2014-12-19 삼성에스디아이 주식회사 Apparatus for measuring thickness of secondary battery
CN105423979A (en) * 2015-12-17 2016-03-23 佛山市南海区欣源电子有限公司 Soft-packaged lithium battery thickness measuring device
CN105865392A (en) * 2016-05-25 2016-08-17 北京新能源汽车股份有限公司 Measuring device for measuring thickness variation of soft-packaged power battery

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Publication number Priority date Publication date Assignee Title
CN201094011Y (en) * 2007-07-23 2008-07-30 比亚迪股份有限公司 Thickness measuring apparatus
CN201233218Y (en) * 2008-06-30 2009-05-06 深圳市比克电池有限公司 Battery thickness measuring instrument
CN201773892U (en) * 2010-08-03 2011-03-23 天津力神电池股份有限公司 Lithium ion battery pole group reshaping and detection device
KR20140144425A (en) * 2013-06-11 2014-12-19 삼성에스디아이 주식회사 Apparatus for measuring thickness of secondary battery
CN203534562U (en) * 2013-10-28 2014-04-09 中航锂电(洛阳)有限公司 Square lithium battery electrical core constant voltage thickness measuring device
CN203785652U (en) * 2014-03-27 2014-08-20 深圳市美拜电子有限公司 Electrical core thickness and width test machine
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CN105865392A (en) * 2016-05-25 2016-08-17 北京新能源汽车股份有限公司 Measuring device for measuring thickness variation of soft-packaged power battery

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112082447A (en) * 2020-08-01 2020-12-15 湖南有色金属职业技术学院 Displacement monitoring device in underground engineering construction
CN112082447B (en) * 2020-08-01 2021-10-26 湖南有色金属职业技术学院 Displacement monitoring device in underground engineering construction
CN114951007A (en) * 2021-07-16 2022-08-30 杭州多善科技有限公司 Device for measuring and screening thickness dimension of battery with automatic data reading and storing functions
CN116399693A (en) * 2023-01-13 2023-07-07 东莞市钰成精密机械有限公司 Pressure maintaining box pressure point inspection equipment
CN116399693B (en) * 2023-01-13 2023-12-01 东莞市钰成精密机械有限公司 Pressure maintaining box pressure point inspection equipment

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