CN209570286U - A kind of measuring device of cell expansion power distribution - Google Patents
A kind of measuring device of cell expansion power distribution Download PDFInfo
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- CN209570286U CN209570286U CN201920009446.9U CN201920009446U CN209570286U CN 209570286 U CN209570286 U CN 209570286U CN 201920009446 U CN201920009446 U CN 201920009446U CN 209570286 U CN209570286 U CN 209570286U
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- mounting plate
- battery
- insulation board
- measuring device
- cell expansion
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Abstract
A kind of measuring device of cell expansion power distribution provided by the utility model, including the first mounting plate, the second mounting plate and third mounting plate being parallel to each other, and second mounting plate is between first mounting plate and the third mounting plate；The bolt and stud being used cooperatively through first mounting plate, second mounting plate and the third mounting plate, are fixed on the device for pressure measurement of first mounting plate bottom；Second mounting plate and the third mounting plate are additionally provided with the first insulation board and the second insulation board being oppositely arranged, there is the space for accommodating battery between first insulation board and second insulation board, first insulation board and second insulation board and battery contact surface further include the pressure sensitive recording paper, the measuring device of the utility model is simple, influence of the isolation board to test result can not only be eliminated, moreover it is possible to the distribution situation of expansive force suffered by accurate measurement battery different location.
Description
Technical field
The utility model belongs to technical field of lithium ion, is related to the research of hard shell and the distribution of cell expansion power, especially
It is related to a kind of measuring device of cell expansion power distribution.
Background technique
As new-energy automobile industry rapidly develops, lithium-ion electric electrical automobile just gradually replaces the serious fuel oil of exhaust emissions
Automobile, while the service life of battery is required also higher and higher.And in the life cycle of power battery, power battery passes through
A certain proportion of expansion can be presented in long-term circulation or storage, battery volume, break when battery volume is expanded into back casing to a certain degree
Electrolyte outflow is split, may cause the major safety problems such as burning and explosion.
For the expansion of power battery, a kind of currently used disposal options are that pressure sensing is arranged in power battery pack
Device is facilitated the state for grasping battery by pressure in detection power battery pack, makes counter-measure in time, avoid between battery
Pressure is excessive to cause the problems such as exploding, burning.On the one hand, existing measurement method is detected for the pressure of battery pack,
That is, its detect be multiple cell expansion degree in entire battery pack average value, when single battery volume occur
When expansion, the pressure data that the pressure sensor of whole installation detects cannot not only reflect problem, also will cause the vacation of mistake
As missing the opportunity handled in time.In view of the above-mentioned problems, Chinese patent CN108063286A discloses one kind for battery pack electricity
The detection device and power battery pack of pond expansion, it includes the first mounting plate being oppositely arranged and the second installation which, which passes through,
The fixed frame of plate and cell expansion detection unit including endless metal belt, elastomeric element and tension sensor in battery pack into
Row detection, is in real time monitored the volume expansion of the single battery in battery pack, can more accurate, reliably reflect
In power battery pack the case where the expansion of single battery.However this can only detect the expansion status of single battery, cannot but examine
The case where measuring the distribution of single battery expansive force.
On the other hand, at present applied to cell expansion power measurement device for pressure measurement in order to avoid device for pressure measurement with
Battery, which directly contacts, causes battery damaged, an isolation board is often arranged between battery and device for pressure measurement, if isolation board
It is too thick, it is easy to divide equally the expansive force of battery, is then difficult to accurately measure the distribution situation of cell expansion power, if isolation board is too thin,
It is being more than to be easily deformed after it withstands forces threshold range, is equally also will affect the accuracy of expansive force distribution.
Summary of the invention
It is easy to operate in order to solve the above technical problem, the present invention provides a kind of measuring device of cell expansion power distribution,
Accuracy is high, can not only eliminate influence of the isolation board to test result, moreover it is possible to expansive force suffered by accurate measurement battery different location
Distribution situation.
The present invention provides a kind of measuring device of cell expansion power distribution, including be parallel to each other the first mounting plate, second
Mounting plate and third mounting plate, and second mounting plate is between first mounting plate and the third mounting plate；Also
Including the bolt and stud through first mounting plate, second mounting plate and the third mounting plate, for fixing
With adjusting first mounting plate, second mounting plate and the third mounting plate；It is fixed on first mounting plate bottom
Device for pressure measurement；And second mounting plate towards the third mounting plate further includes being parallel to the third on one side
First insulation board of mounting plate and the third mounting plate towards second mounting plate further include being parallel to described on one side
Second insulation board of two mounting plates, the space for accommodating battery with one between first insulation board and second insulation board,
First insulation board and second insulation board and the battery contact surface further include pressure sensitive recording paper.
Further, the second mounting plate and the third mounting plate are controlled and is being hung down by screwing the stud or the bolt
Histogram moves up and down；
Further, the pressure measurement dress can be the device of arbitrary measuring force；
Further, first insulation board and the second insulation board surfacing impulse- free robustness, and long and width is all larger than
The length and width of the battery；
Further, second mounting plate, the third mounting plate width be slightly larger than the battery width；
Further, the length of the pressure sensitive recording paper and width are all larger than the length and width of the battery.
Further, the utility model measuring device measurement process is as follows:
S1 prepares colorimetric card: taking the pressure sensitive recording paper of blank, applies certain pressure to it respectively using press device
F1, F2 ... .Fn prepare pressure colorimetric card corresponding with color；
S2 presses to battery: the battery is placed in first described in the measuring device of above-mentioned cell expansion power distribution
It between insulation board and second insulation board, is wrapped in the pressure sensitive recording paper, and applies primary stress F0 to it；
Performance test: S3 the measuring device in S2 including the battery is put in particular experiment environment and is tested；
Comparative analysis: S4 after the completion of test, takes out the pressure sensitive recording paper for being wrapped in the battery, sticks into the colorimetric
Row comparison obtains the distribution situation of the suffered expansive force of the battery different location.
Further, stressed mode is applied in S2 can be directly adjust the stud or the bolt presses,
By adjusting the stud, the primary stress F0 towards second mounting plate can be applied to the third mounting plate, it is corresponding
The numerical value of the device for pressure measurement, which reaches the default primary stress F0, then to be stopped adjusting；Also it can use press device progress
Apply, the press device applies primary stress F0 to the third mounting plate, and reaches the default primary stress in pressure
F0 stops pressure；
Further, the circulation experiment that the test in S3 in specific lab environment can be disposed in constant-temperature house, can also
To be high temperature storage experiment in an oven.
The measuring device of a kind of cell expansion power distribution provided by the invention, by the way that pressure sensitive recording paper is wrapped battery simultaneously
Apply specified pressure to it, then the pressure sensitive recording paper and colorimetric card comparative analysis are obtained into the battery stress condition, this hair
Bright clear principle, it is easy to operate, the expansive force of battery can not only be measured, moreover it is possible to measure expansive force suffered by battery different location
Distribution situation can more eliminate influence of the isolation board to battery measurement result.
Detailed description of the invention:
Fig. 1 is a kind of measuring device structural schematic diagram of cell expansion power distribution provided by the invention
Fig. 2 is the structural schematic diagram of part A in Fig. 1
Fig. 3 is the colorimetric card prepared in advance in the present embodiment
Fig. 4 is the present embodiment comparative analysis figure
Wherein, each mark meaning in figure are as follows:
A be colorimetric card b be test after pressure sensitive recording paper
1 first mounting plate
2 second mounting plates
3 third mounting plates
4 bolts
5 studs
6 device for pressure measurement
7 first insulation boards
8 second insulation boards
9 pressure sensitive recording papers
10 batteries.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment it is detailed
Thin description and attached drawing cannot be used to limit the scope of the invention for illustratively illustrating the principle of the present invention, i.e., of the invention
It is not limited to described embodiment.
In the description of the present invention, it should be noted that unless otherwise indicated, the meaning of " plurality " is refer to two or two
More than a；The mode or positional relationship of the instructions such as term " on ", "lower", "left", "right", "inner", "outside" are merely for convenience of retouching
It states the present invention and simplifies description, rather than indicate or imply that signified device or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In description of the invention, it is also necessary to explanation, unless this field explicitly provides and limits, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, " connection " may be a fixed connection, may be a detachable connection, Huo Zheyi
The connection of body, can be directly connected, and be also possible to indirectly connected through an intermediary.For those of ordinary skill in the art
For, visual concrete condition understands the concrete meaning of above-mentioned term in the present invention.
Technical solution of the present invention is described in detail below with reference to Fig. 1 and Fig. 2.
As depicted in figs. 1 and 2, the present invention provides a kind of measuring device of cell expansion power distribution, including the first mounting plate
1, the second mounting plate 2, third mounting plate 3, bolt 4, stud 5, device for pressure measurement 6, the first insulation board 7,8 and of the second insulation board
Pressure sensitive recording paper 9；First mounting plate 1 and the second mounting plate 2 are respectively positioned on immediately below third mounting plate 3, and the second mounting plate 2 is located at
Between first mounting plate 1 and third mounting plate 3；Bolt 5 and stud 4 are through the first mounting plate 1, the second mounting plate 2 and third
Mounting plate 3, to fix the first mounting plate 1, the second mounting plate 2 and third mounting plate 3；Third mounting plate 3 is under pressure
Direction along stud 5 towards the second mounting plate 2 moves；In the present embodiment, bolt 4 is installed through the first mounting plate 1 and second
Plate 2；Stud is fastened in bolt 4 through the second mounting plate 2 and third mounting plate 3, stud 5, by the first mounting plate 1, second
Mounting plate 2 is fixedly connected with third mounting plate 3, by rotating the height of the adjustable third mounting plate 3 of stud 5, in general
The height of third mounting plate 3 is adjusted according to preset pressure to control the stress condition of the battery；Second mounting plate 2 is towards institute
State third mounting plate 3 further includes the first insulation board 7 for being parallel to third mounting plate 3 on one side, and third mounting plate 3 is pacified towards second
Loading board 2 further includes the second insulation board 8 for being parallel to the second mounting plate 2 on one side, between the first insulation board 7 and the second insulation board 8
The space for accommodating battery with one, the first insulation board 7 and the second insulation board 8 and 10 contact surface of battery further include pressure sensitive recording paper 9；
Device for pressure measurement 6 is fixed on 1 bottom of the first mounting plate, for measuring the expansive force of battery and applying to third mounting plate 3
Pressure.
Further, device for pressure measurement 6 is arbitrary the device of measuring force.
Further, the smooth impulse- free robustness of the first insulation board 7 and 8 face of the second insulation board table, preferably glass plate, and it is long and wide
It is all larger than the length and width of battery 10；
Further, the second mounting plate 2, third mounting plate 3 width be slightly larger than battery 10 width；
Further, 9 length of pressure sensitive recording paper and the wide length for being all larger than battery 10 and width；
A kind of process of the measuring device of cell expansion power distribution provided by the invention is as follows:
S1 prepares colorimetric card: taking the pressure sensitive recording paper a an of blank, is applied respectively using press device to its different location
The pressure for adding 4000N, 8000N, 12000N, 16000,20000N, 24000N, 2800N, prepares colorimetric card；7 skies can also be taken
White pressure sensitive recording paper a, applies the pressure of 4000N, 8000N, 12000N, 16000,20000N, 24000N, 2800N to it respectively
Power, then intercepting respectively has a part of the pressure sensitive recording paper a of the marking to be spliced into colorimetric card, as shown in Figure 3；
S2 presses to battery: the first insulation battery 10 being placed in the measuring device of above-mentioned cell expansion power distribution
It between plate 7 and the second insulation board 8, is wrapped in the pressure sensitive recording paper 9, is applied just by adjusting stud 5 to third mounting plate 3
Beginning stress 2000N；
Performance test: S3 the measuring device in S2 including the battery 10 is put in 60 DEG C of constant-temperature house and is recycled
Test 48h；Progress high temperature storage 240h in baking oven can also be placed in；
S4, comparative analysis: after the completion of test, taking out and be wrapped in the pressure sensitive recording paper 9 of the battery 10, and prepares in S1
Colorimetric card compare and analyze expansive force suffered by 10 different location of battery distribution situation.
Specifically, in the present embodiment, device for pressure measurement 6 is located at the bottom of the first mounting plate 1, the battery 10 is placed
When doing circulation experiment in 60 DEG C of constant-temperature houses, which is fixed on ground or is fixed on other plates, it is ensured that the
The position fixation of one mounting plate 1 will not move, in this way when the battery 10 during cyclic test forced expansion, then can
Generate the power for pushing the second mounting plate 2 and third mounting plate 1 to be displaced outwardly, but consolidating due to device for pressure measurement 6 and bolt 5
It is set for using, the second mounting plate 2 and third mounting plate 3 can not move, and pressure test device 6 prevents the second mounting plate 2 to moving down
It is dynamic, therefore power measured by device for pressure measurement 6 is power suffered by the second mounting plate 2, is also equal to battery 10 and pressure sensitive recording
Power suffered by paper 9.The dynamics as suffered by 9 different location of pressure sensitive recording paper may be inconsistent, and the color printed to thereon is presented
It is compared and analyzed the stress condition that 10 different location of battery can be obtained by different depth out with above-mentioned colorimetric card.
As shown in figure 4, the value shown on the device for pressure measurement is 28000N, i.e., the described battery after the completion of test
Expansive force suffered by 10 is 28000N, then observes the colour developing situation of pressure sensitive recording paper 9, it can be seen that 1,2,3 is trizonal
Discontinuity compares and analyzes it with colorimetric card, and expansive force suffered by available 12,3 three regions is respectively
28000N, 20000N and 8000N.Using measuring device and measuring method of the invention, battery clearer can be analyzed not
With the stress condition of position.
Claims (6)
1. a kind of measuring device of cell expansion power distribution, including the first mounting plate, the second mounting plate and third being parallel to each other
Mounting plate, and second mounting plate is between first mounting plate and the third mounting plate；It is characterized in that, also wrapping
Include bolt and stud through first mounting plate, second mounting plate and the third mounting plate, for fixed and
Adjust first mounting plate, second mounting plate and the third mounting plate；It is fixed on first mounting plate bottom
Device for pressure measurement；And second mounting plate towards the third mounting plate further includes being parallel to third peace on one side
First insulation board of loading board and the third mounting plate towards second mounting plate further include being parallel to described second on one side
Second insulation board of mounting plate, the space for accommodating battery with one between first insulation board and second insulation board, institute
It states the first insulation board and second insulation board and the battery contact surface further includes pressure sensitive recording paper.
2. a kind of measuring device of cell expansion power distribution according to claim 1, which is characterized in that described by screwing
Stud or the bolt control the lower movement in vertical direction of the second mounting plate and the third mounting plate.
3. a kind of measuring device of cell expansion power distribution according to claim 1, which is characterized in that the pressure measurement
Device is the device of any measuring force.
4. a kind of measuring device of cell expansion power distribution according to claim 1, which is characterized in that first insulation
Plate and the second insulation board surfacing impulse- free robustness, and long and width is all larger than the length and width of battery.
5. a kind of measuring device of cell expansion power distribution according to claim 1, which is characterized in that state the second installation
Plate, the third mounting plate width be slightly larger than battery width.
6. a kind of measuring device of cell expansion power distribution according to claim 1, which is characterized in that the pressure sensitive recording
The length and width of paper are all larger than the length and width of battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009446.9U CN209570286U (en) | 2019-01-04 | 2019-01-04 | A kind of measuring device of cell expansion power distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009446.9U CN209570286U (en) | 2019-01-04 | 2019-01-04 | A kind of measuring device of cell expansion power distribution |
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| Publication Number | Publication Date |
|---|---|
| CN209570286U true CN209570286U (en) | 2019-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920009446.9U Active CN209570286U (en) | 2019-01-04 | 2019-01-04 | A kind of measuring device of cell expansion power distribution |
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| Country | Link |
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| CN (1) | CN209570286U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813479A (en) * | 2019-01-04 | 2019-05-28 | 欣旺达电动汽车电池有限公司 | A kind of measuring device and measuring method of cell expansion power distribution |
| GB2619557A (en) * | 2022-06-10 | 2023-12-13 | Virtual Vehicle Res Gmbh | Device for measuring thickness changes of battery cells |
-
2019
- 2019-01-04 CN CN201920009446.9U patent/CN209570286U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813479A (en) * | 2019-01-04 | 2019-05-28 | 欣旺达电动汽车电池有限公司 | A kind of measuring device and measuring method of cell expansion power distribution |
| GB2619557A (en) * | 2022-06-10 | 2023-12-13 | Virtual Vehicle Res Gmbh | Device for measuring thickness changes of battery cells |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518107 Xinwangda Industrial Park, No.18, Tangjia south, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |