CN111562177B - Battery test extrusion platform - Google Patents
Battery test extrusion platform Download PDFInfo
- Publication number
- CN111562177B CN111562177B CN202010561208.6A CN202010561208A CN111562177B CN 111562177 B CN111562177 B CN 111562177B CN 202010561208 A CN202010561208 A CN 202010561208A CN 111562177 B CN111562177 B CN 111562177B
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- plate
- locking structure
- force
- force application
- barb
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000001125 extrusion Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 34
- 238000012546 transfer Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 13
- 229910052744 lithium Inorganic materials 0.000 description 13
- 238000002474 experimental method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000009778 extrusion testing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a battery test extrusion platform which comprises a bottom plate, a pressure strain gauge baffle, a force application plate, a stud fixing plate, a force transmission plate, a spring and an upright post, wherein the bottom plate, the pressure strain gauge baffle, the force application plate, the stud fixing plate, the force transmission plate, the spring and the upright post are sequentially arranged from top to bottom; the bottom plate, the pressure strain gauge baffle plate, the force application plate and the force transmission plate are provided with abdication holes along the center symmetry; the bottom plate, the pressure strain gauge baffle plate, the force application plate and the relief holes on the force transmission plate are in one-to-one correspondence up and down; the upright post sequentially passes through the yielding holes on the bottom plate, the pressure strain gauge baffle plate, the force application plate and the force transmission plate; a battery to be tested is arranged between the stud fixing plate and the force application plate; the upright post between the force application plate and the force transmission plate passes through the spring; the center of the force transmission plate is provided with a center force application device. By the aid of the technical scheme, accuracy of battery pressure testing can be achieved on the basis of simple platform structure.
Description
Technical Field
The invention relates to the field of battery testing, in particular to a battery testing extrusion platform.
Background
With the increasing attention of people to the environment, the new energy drive is increasingly favored by the masses, and the lithium battery becomes one of the cores in the new energy drive by virtue of the advantages of high energy density, environmental friendliness, long service life and the like, and the safety of the lithium battery is also the most concerned by the masses. With the large amount of battery put into use, the safety accidents are continuously increased, such as explosion of the mobile phone battery, ignition of new energy automobiles, and the like. In order to detect the safety of the battery under specific conditions, it is necessary to design a device capable of applying pressure to the battery, thereby evaluating the safety of the battery. In the current market, the pressure test on the battery generally adopts an expensive pressure testing machine, which leads to some small mechanisms to give up the detection of the safety, and in addition, a part of cheap and simple pressure devices can in principle meet the requirement of pressing the battery, but they cannot guarantee the consistency of the pressure applied to the same plane of the battery, so that the detection result is inaccurate.
Disclosure of Invention
The invention aims to provide a battery test extrusion platform, which realizes the accuracy of battery pressure test on the basis of simple platform structure.
In order to solve the technical problems, the invention provides a battery test extrusion platform which comprises a bottom plate, a pressure strain gauge baffle, a force application plate, a stud fixing plate, a force transmission plate, a spring and an upright post, wherein the bottom plate, the pressure strain gauge baffle, the force application plate, the stud fixing plate, the force transmission plate, the spring and the upright post are sequentially arranged from top to bottom; the bottom plate, the pressure strain gauge baffle plate, the force application plate and the force transmission plate are provided with abdication holes along the center symmetry; the bottom plate, the pressure strain gauge baffle plate, the force application plate and the relief holes on the force transmission plate are in one-to-one correspondence up and down; the upright post sequentially passes through the yielding holes on the bottom plate, the pressure strain gauge baffle plate, the force application plate and the force transmission plate; a battery to be tested is arranged between the stud fixing plate and the force application plate; the upright post between the force application plate and the force transmission plate passes through the spring; the center of the force transmission plate is provided with a center force application device.
In a preferred embodiment, the device further comprises a first barb locking structure and a second barb locking structure, and a plurality of first cuts are arranged on the base plate; one side of the stud fixing plate extends downwards to form the first barb locking structure; the tail end of the first barb locking structure is provided with a first barb and is used for limiting the first incision mutually; a second incision is formed on one side of the stud fixing plate, which is not provided with the first barb locking structure; the second barb locking structure is specifically arranged in the vertical direction, the second barbs are arranged at the upper end and the lower end of the barb locking structure, the second barbs located below are used for limiting the first incisions, and the second barbs located above are used for limiting the second incisions.
In a preferred embodiment, a yielding groove is further formed on one side of the stud fixing plate provided with the second notch; when the second barb locking structure is sunk into the abdication groove so that the second barb positioned above and the second incision are mutually limited, the second barb locking structure is limited along the horizontal direction.
In a preferred embodiment, the first barb locking structure is specifically formed by extending one side of the stud fixing plate downward in a vertical direction for a certain distance, then extending in a horizontal direction for a certain distance, and then extending upward in a vertical direction for a certain distance; the second barb locking structure comprises a vertical body, wherein two ends of the vertical body extend upwards and downwards for a certain distance after extending for a certain distance along the horizontal direction, so as to form the second barb.
In a preferred embodiment, the first barb locking structure and the second barb locking structure are respectively provided with two.
In a preferred embodiment, the central force application device is embodied as a stud and a bolt; the center of the force transfer plate is provided with a through hole, and the stud passes through the through hole and is abutted against the middle part of the stud fixing plate; the bolt is connected with the stud, and the bolt is rotated to enable the force transmission plate to move upwards or downwards; the force transfer plate moves downward so that the spring is compressed and a compression force is generated to compress the force transfer plate.
In a preferred embodiment, the distance between the force transfer plate and the force application plate is greater than the thickness of the stud retainer plate when the spring is compressed to a minimum length.
In a preferred embodiment, the aperture of the through hole is larger than the diameter of the stud.
In a preferred embodiment, the columns are provided with four columns.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
The invention provides a battery test extrusion platform, which realizes the accuracy of battery pressure test on the basis of simple structure. The four parts of the springs are compressed by forming a downward movement trend on the force applying plate through screwing of the nut studs, and the lithium battery can be pressed by the pressure from the force applying plate under the action of the spring force to reach a pressed state. The patent has the advantages of low price, high cost performance, convenient operation, portability and the like.
Drawings
FIG. 1 is a schematic view showing the overall structure of a battery test extrusion platform according to a preferred embodiment of the present invention;
FIG. 2 is a top view of the base plate structure of the battery test crush platform in accordance with the preferred embodiment of the present invention;
FIG. 3 is a schematic view of the positional relationship between the stud fixing plate and the first barb locking structure of the battery test extrusion platform according to the preferred embodiment of the present invention;
fig. 4 is a schematic view of a second barb locking structure of the battery test compression platform in accordance with a preferred embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
The battery test extrusion platform comprises a bottom plate 2, a pressure strain gauge baffle plate 3, a force application plate 4, a stud fixing plate 5, a force transmission plate 6, a spring 8 and a stand column 7 which are sequentially arranged from top to bottom, wherein the force transmission plate 6 is a cylindrical plate; the bottom plate 2, the pressure strain gauge baffle plate 3, the force application plate 4 and the force transmission plate 6 are provided with yielding holes along central symmetry; the yielding holes on the bottom plate 2, the pressure strain gauge baffle plate 3, the force application plate 4 and the force transmission plate 6 are in one-to-one correspondence up and down; the upright posts 7 sequentially penetrate through the yielding holes on the bottom plate 2, the pressure strain gauge baffle 3, the force application plate 4 and the force transmission plate 6, and in the embodiment, the upright posts 7 are provided with four, and are respectively arranged at four corners of the bottom plate 2, the pressure strain gauge baffle 3, the force application plate 4 and the force transmission plate 6; a battery to be tested is arranged between the stud fixing plate 5 and the force application plate 4; the upright post 7 between the force application plate 4 and the force transmission plate 6 passes through the spring 8; a central force application device is arranged at the central position of the force transmission plate 6. In this embodiment, the battery to be measured is specifically a lithium battery to be measured. The device can select different springs 8 for assembly according to the actual requirements of an experimenter, and can meet different pressure requirements. The size of the structure of the bottom plate 2 is 160 x 100 x 15mm, compared with the thickness of other structural plates, the thickness of the bottom plate 2 is relatively thicker, the structure can play a better role in stabilizing the whole structure, the middle of the whole structure is designed into a hollow structure, and the heat possibly generated by the lithium battery in the extrusion experiment can be released better.
The base plate 2 is provided with a plurality of first notches 21, and four first notches 21 are respectively arranged at four positions as shown in fig. 2, so that the positions of the first barb locking structure 53 and the second barb locking structure 11 are limited, and the slipping phenomenon in the working process is avoided. One side of the stud fixing plate 5 extends downwards to form the first barb locking structure 53; the end of the first barb locking structure 53 is provided with a first barb 531 for limiting the first incision 21; a second notch 51 is formed in one side, on which the first barb locking structure 53 is not formed, of the stud fixing plate 5; the second barb locking structure 11 is specifically disposed along a vertical direction, and the upper end and the lower end of the barb locking structure are provided with second barbs 111, the second barbs 111 located below are used for limiting the first incisions 21 mutually, and the second barbs 111 located above are used for limiting the second incisions 51 mutually. One side of the stud fixing plate 5 provided with the second notch 51 is also provided with a relief groove 52; when the second barb locking structure 11 is sunk into the relief groove 52 to limit the second barb 111 and the second slit 51, which are located above, the second barb locking structure 11 is limited in the horizontal direction. The first barb locking structure 53 is specifically formed by extending a certain distance downwards in the vertical direction and then extending a certain distance in the horizontal direction and then extending a certain distance upwards in the vertical direction on one side of the stud fixing plate 5; the second barb locking structure 11 comprises a vertical body, and the two ends of the vertical body extend a distance along the horizontal direction and then respectively extend upwards and downwards a distance to form the second barb 111. In this embodiment, two barb locking structures 53 and 11 are provided.
The central force application device is specifically a stud 9 and a bolt 10; a through hole is formed in the center of the force transfer plate 6, and the stud 9 passes through the through hole and abuts against the middle part of the stud fixing plate 5; the bolt 10 is connected with the stud 9, and the bolt 10 is rotated to enable the force transmission plate 6 to move upwards or downwards; the force transfer plate 6 moves downward so that the spring 8 is pressed and a pressing force is generated to press the force application plate 4. In order to avoid friction between the stud 9 and the through hole and prolong the service life of the platform, the diameter of the through hole is larger than the diameter of the stud 9. When the spring 8 is pressed to the minimum length, the distance between the force transfer plate 6 and the force application plate 4 is larger than the thickness of the stud fixing plate 5. The downward pressing force generated by the rotation between the nut and the stud 9 is transferred to the force transfer plate 6, and the force on the plane is evenly distributed by utilizing the characteristics of the plane structure. The center position of the force transfer plate 6 is required to be provided with a through hole which is 5mm larger than the diameter of the stud 9, so that the stud 9 is convenient to install, friction between the force transfer plate 6 and the stud 9 in the force application process is avoided, and the structural integrity of the force transfer plate 6 is further protected.
The method for installing and using the battery extrusion test platform comprises the following steps: firstly, the stand columns 7 are inserted into four yielding holes of the bottom plate 2, the main function of the stand columns 7 is to provide positions for the springs 8, meanwhile, the movement directions of the springs are limited, then the four yielding holes on the pressure strain gauge baffle plate 3 are installed corresponding to the positions of the four stand columns 7, at the moment, a lithium battery pack to be tested can be placed on the pressure strain gauge baffle plate 3, then the force application plate 4 is placed along with the stand columns 7 along with the through holes, the force application plate 4 is directly contacted with the tested lithium battery, the springs 8 are installed respectively, the force transmission plate 6 is covered, the yielding holes are arranged on all the plates, the stability of the stand columns 7 can be improved in terms of space arrangement, and the experiment process is not distorted. And then the first barb locking structure 53 of the stud fixing plate 5 is aligned with the first notch 21 under the bottom plate 2, the other side is fixed, the second barb locking structure corresponds to the first notch 21 through the second notch 51, the combination of the second barb 111, the first notch 21 and the second notch 51 plays a role in fixing, the plane of the stud fixing plate 5 is positioned above the force application plate 4, the thickness of the stud fixing plate is not more than the limit compression length of the spring 8, the stud 9 can be screwed after the fixing of the stud fixing plate 5 is completed, finally downward acting force is generated through the cooperation of the nut and the stud 9, the second barb 111 is transferred to the lithium battery layer by layer, and the extrusion working condition is completed. The lithium battery extrusion test platform device provides an experiment table which is low in cost, high in cost performance and simple to operate for the extrusion experiment of the lithium battery, so that more factories can carry out extrusion test on the lithium battery, and the development of the lithium battery is promoted.
The invention provides a battery test extrusion platform, which realizes the accuracy of battery pressure test on the basis of simple structure. The four parts of the spring 8 are compressed by forming a downward movement trend on the force transmission plate 6 through screwing of the nut stud 9, and the lithium battery is pressed by the force of the spring 8 to be in a pressed state. The patent has the advantages of low price, high cost performance, convenient operation, portability and the like.
The foregoing is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art will be able to make insubstantial modifications of the present invention within the scope of the present invention disclosed herein by this concept, which falls within the actions of invading the protection scope of the present invention.
Claims (5)
1. The battery test extrusion platform is characterized by comprising a bottom plate, a pressure strain gauge baffle, a force application plate, a stud fixing plate, a force transmission plate, a spring and an upright post which are sequentially arranged from top to bottom; the bottom plate, the pressure strain gauge baffle plate, the force application plate and the force transmission plate are provided with abdication holes along the center symmetry; the bottom plate, the pressure strain gauge baffle plate, the force application plate and the relief holes on the force transmission plate are in one-to-one correspondence up and down; the upright post sequentially passes through the yielding holes on the bottom plate, the pressure strain gauge baffle plate, the force application plate and the force transmission plate; a battery to be tested is arranged between the stud fixing plate and the force application plate; the upright post between the force application plate and the force transmission plate passes through the spring; a central force application device is arranged at the central position of the force transmission plate; the central force application device is specifically a stud and a bolt; the center of the force transfer plate is provided with a through hole, and the stud passes through the through hole and is abutted against the middle part of the stud fixing plate; the bolt is connected with the stud, and the bolt is rotated to enable the force transmission plate to move upwards or downwards; the force transfer plate moves downwards so that the spring is extruded and extrusion force is generated to extrude the force application plate; when the length of the spring is minimum, the distance between the force transmission plate and the force application plate is larger than the thickness of the stud fixing plate; the aperture of the through hole is larger than the diameter of the stud; the device further comprises a first barb locking structure and a second barb locking structure, and a plurality of first cuts are formed in the bottom plate; one side of the stud fixing plate extends downwards to form the first barb locking structure; the tail end of the first barb locking structure is provided with a first barb and is used for limiting the first incision mutually; a second incision is formed on one side of the stud fixing plate, which is not provided with the first barb locking structure; the second barb locking structure is specifically arranged in the vertical direction, the second barbs are arranged at the upper end and the lower end of the barb locking structure, the second barbs located below are used for limiting the first incisions, and the second barbs located above are used for limiting the second incisions.
2. The battery test extrusion platform of claim 1, wherein a relief groove is further provided on one side of the stud fixing plate provided with the second cutout; when the second barb locking structure is sunk into the abdication groove so that the second barb positioned above and the second incision are mutually limited, the second barb locking structure is limited along the horizontal direction.
3. The battery test extrusion platform of claim 2, wherein the first barb locking structure is formed by extending one side of the stud fixing plate downward a distance in a vertical direction, then extending a distance in a horizontal direction, and then extending a distance upward in a vertical direction; the second barb locking structure comprises a vertical body, wherein two ends of the vertical body extend upwards and downwards for a certain distance after extending for a certain distance along the horizontal direction, so as to form the second barb.
4. The battery test compression platform of claim 3, wherein the first barb locking structure and the second barb locking structure are each provided in two.
5. The battery test compression platform of claim 1, wherein the posts are provided with four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561208.6A CN111562177B (en) | 2020-06-18 | 2020-06-18 | Battery test extrusion platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561208.6A CN111562177B (en) | 2020-06-18 | 2020-06-18 | Battery test extrusion platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111562177A CN111562177A (en) | 2020-08-21 |
| CN111562177B true CN111562177B (en) | 2024-07-02 |
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| CN202010561208.6A Active CN111562177B (en) | 2020-06-18 | 2020-06-18 | Battery test extrusion platform |
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| CN (1) | CN111562177B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340575A (en) * | 2021-04-30 | 2021-09-03 | 中国航天空气动力技术研究院 | Pressure-bearing testing mechanism |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212459185U (en) * | 2020-06-18 | 2021-02-02 | 华侨大学 | Battery test extrusion platform |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX2010002060A (en) * | 2010-02-22 | 2011-08-30 | Luis Gerardo Oyervides Ochoa | Hydraulic nut with calibration device and warning alarm. |
| CN102798331A (en) * | 2011-05-24 | 2012-11-28 | 鸿富锦精密工业（深圳）有限公司 | Device for detecting stress deformation value |
| CN104345282A (en) * | 2014-10-20 | 2015-02-11 | 江苏华东锂电技术研究院有限公司 | Battery testing platform |
| CN205643648U (en) * | 2016-03-28 | 2016-10-12 | 新材料与产业技术北京研究院 | A pressure cloud platform for battery test equipment |
| CN107271284A (en) * | 2017-08-22 | 2017-10-20 | 成都飞航沛腾科技有限公司 | A kind of lithium battery compression test device |
| KR20190090291A (en) * | 2018-01-24 | 2019-08-01 | 삼성에스디아이 주식회사 | Test device for battery |
| CN109119671B (en) * | 2018-08-30 | 2024-03-19 | 海目星（江门）激光智能装备有限公司 | Electric core hot press device |
| CN209027909U (en) * | 2018-10-19 | 2019-06-25 | 中航锂电技术研究院有限公司 | A kind of extruding test fixture fixture based on change size side's shell lithium battery |
| CN109342906B (en) * | 2018-12-05 | 2020-07-07 | 山东大学 | Multifunctional partial discharge detection system and method |
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- 2020-06-18 CN CN202010561208.6A patent/CN111562177B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212459185U (en) * | 2020-06-18 | 2021-02-02 | 华侨大学 | Battery test extrusion platform |
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