CN207798317U - Automobile-used lithium ion battery pretightning force test fixture - Google Patents
Automobile-used lithium ion battery pretightning force test fixture Download PDFInfo
- Publication number
- CN207798317U CN207798317U CN201820091223.7U CN201820091223U CN207798317U CN 207798317 U CN207798317 U CN 207798317U CN 201820091223 U CN201820091223 U CN 201820091223U CN 207798317 U CN207798317 U CN 207798317U
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- China
- Prior art keywords
- top board
- bottom plate
- pretightning force
- automobile
- lithium ion
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model belongs to electric automobile power battery field, more particularly to a kind of automobile-used lithium ion battery pretightning force test fixture, including bottom plate (1), pressing plate (2), pressing device (3), Weighing type pressure sensor (20) and cell support plate (30)；The upper surface of bottom plate (1) is evenly arranged multiple Weighing type pressure sensors (20), and the center of the lower surface of fixed cell support plate (30) is fixed on the sensing head of Weighing type pressure sensor (20)；The plane that the lower surface of top board (2) has multiple level heights different, the plane that each level height of the lower surface of top board (2) is different are corresponding with one cell support plate (30) respectively；Pressing device (3) is arranged in the upper surface of top board (2), and positive charge port (A) and cathode charge port (B) are arranged on bottom plate (1).The utility model, which can greatly improve, tests the battery performance of different pretightning forces or the efficiency of life experiment.
Description
Technical field
The utility model belongs to electric automobile power battery field, more particularly to a kind of automobile-used lithium ion battery pretightning force is surveyed
Try fixture.
Background technology
Energy crisis makes electric vehicle become the hot spot of automobile industry with environmental problem.The battery pack conduct of electric vehicle
Power output is one of the core component on electric vehicle.Since the power demand and continuation of the journey demand of electric vehicle are larger, individually
Lithium ion battery much cannot be satisfied its demand, it is therefore desirable to battery is integrated, multiple single batteries are gone here and there, simultaneously
Connection composition battery modules, then final battery pack is made of battery modules series and parallel.In battery strings, compose in parallel the mistake of module
Cheng Zhong needs to apply pretightning force to battery pack.If pretightning force is too small, the vibration in vehicle travel process may lead to battery mould
Group part loose or dislocation causes to use failure, if there is electrical contact at the position to fall off, it is likely that problems of excessive heat is caused in turn result in
Safety hazards.If but pretightning force is excessive, may be impacted to performance, the cycle life etc. of battery.Therefore electricity
Module selection of pretightning force in packing process in pond is vital, can also have different pretightning forces for different batteries
Selection.On the other hand selection to battery group pretightning force, the reliability after on the one hand considering in groups consider pretightning force to electricity
The performance in pond and the influence in service life, this generally requires largely to test to be verified.The utility model proposes a kind of pretightning forces
Test fixture can measure the performance under the different pretightning forces of polylith battery and service life, to improve test efficiency simultaneously.
Invention content
The purpose of this utility model is that proposing a kind of automobile-used lithium ion battery pretightning force test fixture, which can be with one
The secondary performance and service life for measuring polylith battery under different pretightning forces improves the testing efficiency of Battery Plant or vehicle enterprise.
The purpose of this utility model is achieved through the following technical solutions：
A kind of automobile-used lithium ion battery pretightning force test fixture, including bottom plate 1, pressing plate 2, pressing device 3, Weighing type pressure
Sensor 20 and cell support plate 30；
The upper surface of bottom plate 1 is evenly arranged multiple Weighing type pressure sensors 20, the lower surface of fixed cell support plate 30
Center be fixed on the sensing head of Weighing type pressure sensor 20；
Top board 2 is located at the top of bottom plate 1, and parallel with bottom plate 1；
The plane that the lower surface of top board 2 has multiple level heights different, each of lower surface of top board 2 are horizontal high
It is corresponding with a cell support plate 30 respectively to spend different planes；
Pressing device 3 is arranged in the upper surface of top board 2, and positive charge port A and cathode charge port B are arranged on bottom plate 1.
The lower surface of top board 2 has the plane that multiple level heights are successively decreased successively.
Pressing device 3 is connect with the center fastener of 2 upper surface of top board.
The beneficial effects of the utility model are：
The automobile-used lithium ion battery pretightning force test fixture of the utility model can greatly improve the different pretightning forces of test
Battery performance or life experiment efficiency, multiple batteries can be tested by the device, it is empty to reduce laboratory
Between and equipment resource occupation and simplify the operating procedure of experimenter.
Description of the drawings
Fig. 1 is the schematic cross-sectional view for the automobile-used lithium ion battery pretightning force test fixture for being the utility model；
Fig. 2 is the schematic top plan view of the automobile-used lithium ion battery pretightning force test fixture of the utility model.
Reference numeral：
1 bottom plate, 2 top board
3 pressing device, 20 Weighing type pressure sensor
30 cell support plate, 40 mesuring battary
50 anode poles/lug, 60 anode pole/lug
A device anode charge port B device cathode charge ports
Specific implementation mode
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.
As shown in Figure 1, a kind of automobile-used lithium ion battery pretightning force test fixture, including bottom plate 1, top board 2, pressing device
3, Weighing type pressure sensor 20 and cell support plate 30.
The upper surface of bottom plate 1 is evenly arranged multiple Weighing type pressure sensors 20.In the lower surface of cell support plate 30
The heart is fixed on the sensing head of Weighing type pressure sensor 20.
The plane that the lower surface of top board 2 has multiple level heights different, level height and the needs of each plane are given
The pretightning force that battery applies is related, according to pretightning force demand needed for experiment, designs the height of each plane.Pretightning force is that battery exists
The pressure that upper and lower two surfaces are subject to, the pretightning force that each battery is subject to are determined by the deflection and elasticity modulus of battery.
Preferably, in the present embodiment, the lower surface of top board 2 has the plane that multiple level heights are successively decreased successively.
When in use, top board 2 is located at the top of bottom plate 1, and parallel with bottom plate 1, each of on the lower surface of top board 2
The different plane of level height is corresponding with a cell support plate 30 respectively.
The difference in height of the different plane of each level height on the lower surface of top board 2 and Weighing type pressure sensor 20
Sensing head rigidity it is related, specific embodiment is as described below：
First, pressure test calibration is carried out to Weighing type pressure sensor 20, obtains the corresponding pressure sensing of different pressures
The correspondence of the sensing head displacement of device 20.According to pretightning force demand needed for experiment, the lower surface rank of top board 2 is calculated and designed
Tread difference in height processes corresponding top board 2.
Pressing device 3 is arranged in the upper surface of top board 2, and is connect with the center fastener of 2 upper surface of top board.Compress dress
Pressure vertically downward can be provided to top board 2 by setting 3.Positive charge port A and cathode charge port B are arranged on bottom plate 1, are convenient for
It is connected with charging/discharging apparatus.
The course of work of the utility model：
As shown in Fig. 2, multiple mesuring battaries 40 are lain in respectively in cell support plate 30.The positive pole of mesuring battary 40
Column/lug 50 is uniformly arranged in the side of mesuring battary 40, and Positive Poles/lug 50 of these mesuring battaries 40 passes through metal
Conducting wire or metal copper bar connect together, and are finally connected with the positive charge port A of entire test fixture.
Cathode pole/lug 60 of mesuring battary 40 is uniformly arranged in the other side of mesuring battary 40, and these electricity to be measured
Cathode pole/the lug 60 in pond 40 is connected together by plain conductor or metal copper bar, finally with entire test fixture
Cathode charge port B is connected.
Pressing device 3 applies pressure vertically downward so that multiple mesuring battaries 40 are by different pretightning forces.Pass through device
Positive charge port A connect with cathode charge port B with charging/discharging apparatus carry out battery charging/discharging performance testing or life test etc..
Claims (3)
1. a kind of automobile-used lithium ion battery pretightning force test fixture, it is characterised in that：
It includes bottom plate (1), top board (2), pressing device (3), Weighing type pressure sensor (20) and cell support plate (30)；
The upper surface of bottom plate (1) is evenly arranged multiple Weighing type pressure sensors (20), the following table of fixed cell support plate (30)
The center in face is fixed on the sensing head of Weighing type pressure sensor (20)；
Top board (2) is located at the top of bottom plate (1), and parallel with bottom plate (1)；
The plane that the lower surface of top board (2) has multiple level heights different, each of lower surface of top board (2) are horizontal high
It is corresponding with one cell support plate (30) respectively to spend different planes；
Pressing device (3) is arranged in the upper surface of top board (2), and positive charge port (A) and cathode charge port (B) are arranged in bottom plate
(1) on.
2. automobile-used lithium ion battery pretightning force test fixture according to claim 1, it is characterised in that：
The lower surface of top board (2) has the plane that multiple level heights are successively decreased successively.
3. automobile-used lithium ion battery pretightning force test fixture according to claim 1 or 2, it is characterised in that：
Pressing device (3) is connect with the center fastener of top board (2) upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820091223.7U CN207798317U (en) | 2018-01-19 | 2018-01-19 | Automobile-used lithium ion battery pretightning force test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820091223.7U CN207798317U (en) | 2018-01-19 | 2018-01-19 | Automobile-used lithium ion battery pretightning force test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207798317U true CN207798317U (en) | 2018-08-31 |
Family
ID=63271213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820091223.7U Expired - Fee Related CN207798317U (en) | 2018-01-19 | 2018-01-19 | Automobile-used lithium ion battery pretightning force test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207798317U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612628A (en) * | 2018-12-07 | 2019-04-12 | 力神动力电池系统有限公司 | The test fixture of lithium ion battery life cycle management pressure |
| CN110376532A (en) * | 2019-06-26 | 2019-10-25 | 清华大学 | The battery data measurement method of cell device under impaction state |
| CN111458061A (en) * | 2020-03-27 | 2020-07-28 | 河南德力新能源汽车有限公司 | Method for searching buffer board for slowing down attenuation of lithium ion battery |
| CN111537126A (en) * | 2020-04-28 | 2020-08-14 | 苏州清陶新能源科技有限公司 | Tool for determining pretightening force of soft package battery, method for determining pretightening force of soft package battery and method for assembling module |
| CN114023985A (en) * | 2021-10-18 | 2022-02-08 | 中国电子科技集团公司第十八研究所 | Method for detecting pressure of activated thermal battery stack |
-
2018
- 2018-01-19 CN CN201820091223.7U patent/CN207798317U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612628A (en) * | 2018-12-07 | 2019-04-12 | 力神动力电池系统有限公司 | The test fixture of lithium ion battery life cycle management pressure |
| CN110376532A (en) * | 2019-06-26 | 2019-10-25 | 清华大学 | The battery data measurement method of cell device under impaction state |
| CN111458061A (en) * | 2020-03-27 | 2020-07-28 | 河南德力新能源汽车有限公司 | Method for searching buffer board for slowing down attenuation of lithium ion battery |
| CN111537126A (en) * | 2020-04-28 | 2020-08-14 | 苏州清陶新能源科技有限公司 | Tool for determining pretightening force of soft package battery, method for determining pretightening force of soft package battery and method for assembling module |
| CN114023985A (en) * | 2021-10-18 | 2022-02-08 | 中国电子科技集团公司第十八研究所 | Method for detecting pressure of activated thermal battery stack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 Termination date: 20190119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |