CN113218609A - Change equipment and realize lithium cell package bottom ball and hit experimental apparatus - Google Patents
Change equipment and realize lithium cell package bottom ball and hit experimental apparatus Download PDFInfo
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- CN113218609A CN113218609A CN202110314007.0A CN202110314007A CN113218609A CN 113218609 A CN113218609 A CN 113218609A CN 202110314007 A CN202110314007 A CN 202110314007A CN 113218609 A CN113218609 A CN 113218609A
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- vibration
- battery pack
- shaking table
- vibrating
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000013016 damping Methods 0.000 claims description 38
- 238000002474 experimental method Methods 0.000 claims description 10
- 238000013461 design Methods 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011076 safety test Methods 0.000 description 1
- 238000009781 safety test method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/04—Monodirectional test stands
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to an experimental device for realizing ball impact on the bottom of a lithium battery pack by changing equipment, which is used for vibration detection on the bottom of the battery pack, wherein the bottom of the battery pack is upwards arranged on a mounting table; including last shaking table and lower shaking table, install the first vibrating motor of a plurality of vertical installations along last shaking table and the last shaking table on lower shaking table border and between the shaking table down, go up the shaking table and put the department with lower shaking table central point and install at least one horizontally mounted's second vibrating motor, second vibrating motor below is connected with the vibration post, and the vibration post head is equipped with and is hemispherical vibrating head, and under the test condition, the vibrating head butt is in the bottom of battery package. This experimental apparatus simple structure is ingenious, and convenient operation can effectively verify whether the structural strength of power battery system bottom satisfies whole car design requirement to guarantee new energy automobile's mechanical safe reliability is favorable to the popularization and the application of above-mentioned experimental apparatus in new energy electric automobile technical field.
Description
Technical Field
The invention relates to the technical field of new energy electric automobiles, in particular to an experimental device for realizing ball impact on the bottom of a lithium battery pack by changing equipment.
Background
The lithium battery has important application in the field of new energy automobiles due to the characteristics of high energy density, long cycle life and the like. With the popularization and application of new energy vehicles, the safety problem of the power battery system becomes an important concern for the development of the new energy vehicles.
The safety performance of a power battery system is not only related to the material system, the structural design of the battery cell, and the like, but also related to the abuse condition in the use process.
The safety test and evaluation of the power battery system mainly comprises the aspects of electricity abuse safety, mechanical safety, environmental safety and the like, and the international and domestic relevant standards of the safety test and evaluation method of the power battery system are further improved.
At present, the mechanical performance evaluation methods for power battery systems mainly comprise vibration, mechanical impact, simulated collision, extrusion and the like. However, damage caused by the road surface environment can be caused in the driving process of the new energy automobile, so that a vibration test is urgently needed to be carried out on the bottom of the power battery system to verify whether the structural strength of the bottom of the power battery system meets the design requirement of the whole automobile or not, and the mechanical safety and reliability of the new energy automobile are guaranteed.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the experimental device for realizing the ball impact at the bottom of the lithium battery pack by changing equipment, the experimental device is simple and ingenious in structure and convenient to operate, and whether the structural strength at the bottom of the power battery system meets the design requirements of the whole vehicle or not can be effectively verified, so that the mechanical safety and reliability of the new energy vehicle are guaranteed, and the experimental device is favorable for popularization and application in the technical field of new energy electric vehicles.
In order to achieve the aim, the invention adopts the following technical scheme that a device for realizing the ball impact experiment at the bottom of a lithium battery pack is changed, the device is used for detecting the vibration at the bottom of the battery pack, and the bottom of the battery pack is upwards arranged on a mounting table; including last shaking table and lower shaking table, along go up the shaking table with the shaking table border down go up the shaking table with install the first vibrating motor of a plurality of vertical installations down between the shaking table, go up the shaking table with shaking table central point puts the department down and installs at least one horizontal installation's second vibrating motor, second vibrating motor below is connected with the vibration post, vibration post head is equipped with and is hemispherical vibrating head, under the test condition, vibrating head butt in the bottom of battery package.
As a preferable scheme of the present invention, a vibration damping member arranged in a columnar shape is provided between the upper vibration table and the lower vibration table.
In a preferred embodiment of the present invention, the damping member is a rubber spring.
As a preferred scheme of the present invention, a vibration damping mounting column for mounting the vibration damping member is disposed on the lower vibration table, a vibration damping positioning member is disposed on the vibration damping mounting column, and the vibration damping member is mounted on the vibration damping positioning member.
As a preferred scheme of the present invention, the vibration damping mounting column and the vibration damping positioning member are both arranged in a columnar shape and are arranged coaxially.
As a preferable mode of the present invention, the plurality of vibration dampers are installed at corners of the lower vibration table.
In a preferred embodiment of the present invention, a vibration plate is mounted below the second vibration motor, and the vibration column is connected to the vibration plate.
As a preferable scheme of the present invention, the vibration column is disposed at an angle to the bottom of the battery pack.
In a preferred embodiment of the present invention, the vibration column is disposed perpendicular to the bottom of the battery pack.
In a preferred embodiment of the present invention, the vibration column is integrally formed with the vibration head.
Compared with the prior art, the invention has the beneficial effects that: according to the experimental device for realizing the ball impact on the bottom of the lithium battery pack by changing equipment, the first vibrating motor and the second vibrating motor are arranged between the upper vibrating table and the lower vibrating table, the vibrating column with the hemispherical vibrating head is in contact with the bottom of the battery pack, and the vibration test on the bottom of the battery pack is realized.
Drawings
Fig. 1 is a schematic structural diagram of an experimental apparatus for implementing ball-impact on the bottom of a lithium battery pack by modifying equipment in this embodiment;
fig. 2 is a schematic structural diagram of an experimental apparatus for implementing ball-impact on the bottom of a lithium battery pack by modifying equipment in the present embodiment;
fig. 3 is a schematic structural diagram of a lower vibration table in an experimental apparatus for implementing ball impact on the bottom of a lithium battery pack by modifying equipment in this embodiment.
Reference numerals: 1. an upper vibration table; 2. a lower vibrating table; 3. a vibration damping mounting post; 30. a vibration damping positioning piece; 4. a vibration damping member; 5. a first vibration motor; 6. a second vibration motor; 7. a vibrating column; 70. a vibrating head; 8. an installation table; 9. a battery pack; 10. a vibrating plate.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
Example (b): as shown in fig. 1 to 3, an experimental apparatus for implementing ball impact on the bottom of a lithium battery pack by modifying equipment is used for vibration detection of the bottom of the battery pack 9, the bottom of the battery pack 9 is installed on an installation table 8 upward, and the battery pack 9 is fixed by fixing members such as clamps and the like to ensure the detection effect, the experimental apparatus includes an upper vibration table 1 and a lower vibration table 2, the upper vibration table 1 and the lower vibration table 2 are both arranged in a square structure, and the upper vibration table 1 and the lower vibration table 2 are arranged in a matching manner, that is, the outer frame sizes of the upper vibration table 1 and the lower vibration table 2 are similar or identical, the lower vibration table 2 is installed under the upper vibration table 1, a plurality of vertically installed first vibration motors 5 are installed between the upper vibration table 1 and the lower vibration table 2 along the edges of the upper vibration table 1 and the lower vibration table 2, in this embodiment, the four first vibration motors 5 are respectively vertically installed in the four edges of the lower vibration table 2 and the upper vibration table 1 The position department to guarantee the stability of first vibrating motor 5 structure in experimental apparatus, guarantee the vibration effect.
The center positions of the upper vibration table 1 and the lower vibration table 2 are provided with at least one second vibration motor 6 which is horizontally installed, a vibration column 7 is connected below the second vibration motor 6, the head of the vibration column 7 is provided with a hemispherical vibration head 70, the vibration head 70 is abutted to the bottom of the battery pack 9 in a test state, the arrangement of the hemispherical vibration head 70 can truly simulate the application scene that the electric automobile is damaged by being impacted by obstacles thrown from the bottom direction in the normal driving process, and a technical support is provided for the mechanical reliability verification and evaluation of the power battery system.
A vibration damping member 4 is arranged between the upper vibration table 1 and the lower vibration table 2 in a columnar shape, and the vibration damping member 4 is a rubber spring. In order to ensure the structural stability of the vibrating member 4 and further ensure the using effect thereof, a vibration damping mounting column 3 for mounting the vibration damping member 4 is arranged on the lower vibrating table 2, a vibration damping positioning member 30 is arranged on the vibration damping mounting column 3, and the vibration damping member 4 is mounted on the vibration damping positioning member 30 to avoid the vibration damping member 4 from falling off.
In order to ensure the stability of the structure, the vibration damping mounting column 3 and the vibration damping positioning member 30 are both arranged in a column shape and are arranged coaxially.
A plurality of the above-mentioned vibration damping members 4 are all installed at the corner of the above-mentioned lower vibration table 2 to reduce the influence on the second vibration motor 6, thereby ensuring the vibration effect of the vibration head 70 of the vibration column 7 and the head thereof, and simultaneously ensuring the structural stability of the above-mentioned upper vibration table 1 and the above-mentioned lower vibration table 2.
In order to facilitate the installation of the second vibration motor 6 and the installation of the vibration column 7, a vibration plate 10 is installed below the second vibration motor 6, the vibration plate 10 plays a bearing role, and the vibration column 7 is connected to the vibration plate 10, so as to realize the resonance of the vibration column 7 and the second vibration motor 6.
The vibrating column 7 is arranged at an angle with the bottom of the battery pack 9, and further, the vibrating column 7 is arranged vertically with the bottom of the battery pack 9 to ensure the accuracy of the test result of the bottom of the battery pack 9.
In order to ensure the structural strength of the joint between the vibrating column 7 and the vibrating head 70, reduce the probability of fracture of the joint, and further reduce the test cost, the vibrating column 7 and the vibrating head 70 are integrally formed.
Change equipment and realize lithium cell package bottom ball and hit experimental apparatus in this embodiment, through last shaking table 1 and set up first vibrating motor 5 and second vibrating motor 6 down between shaking table 2, will have vibration column 7 contact battery package 9 bottoms of hemispherical vibration head 70, realize the vibration test's to battery package bottom detection, this experimental apparatus simple structure is ingenious, and convenient for operation, whether structural strength that can effectively verify power battery system bottom satisfies whole car design requirement, thereby guarantee new energy automobile's mechanical safety reliability, be favorable to the popularization and the application of above-mentioned experimental apparatus in new energy electric automobile technical field.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: 1. an upper vibration table; 2. a lower vibrating table; 3. a vibration damping mounting post; 30. a vibration damping positioning piece; 4. a vibration damping member; 5. a first vibration motor; 6. a second vibration motor; 7. a vibrating column; 70. a vibrating head; 8. an installation table; 9. a battery pack; 10. vibrating plates, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The utility model provides an it realizes lithium cell package bottom ball and hits experimental apparatus to change equipment which characterized in that: the vibration detection device is used for detecting the vibration of the bottom of a battery pack (9), and the bottom of the battery pack (9) is upwards arranged on an installation table (8); including last shaking table (1) and lower shaking table (2), along go up shaking table (1) with shaking table (2) border down go up shaking table (1) with install the first vibrating motor (5) of a plurality of vertical installations down between shaking table (2), go up shaking table (1) with shaking table (2) central point department of putting down installs at least one horizontal installation's second vibrating motor (6), second vibrating motor (6) below is connected with vibration post (7), vibration post (7) head is equipped with and is hemispherical vibrating head (70), under the test state, vibrating head (70) butt in the bottom of battery package (9).
2. The device for realizing the ball striking experiment at the bottom of the lithium battery pack by changing the equipment as claimed in claim 1, is characterized in that: and a vibration damping piece (4) which is arranged in a columnar shape is arranged between the upper vibration table (1) and the lower vibration table (2).
3. The device for realizing the ball striking experiment at the bottom of the lithium battery pack by changing the equipment as claimed in claim 2, is characterized in that: the vibration damping piece (4) is a rubber spring.
4. The device for realizing the ball striking experiment at the bottom of the lithium battery pack by changing the equipment as claimed in claim 3, is characterized in that: be equipped with down on shaking table (2) and supply damping erection column (3) of damping piece (4) installation, be equipped with damping setting element (30) on damping erection column (3), damping piece (4) install in damping setting element (30).
5. The device for realizing the ball striking experiment at the bottom of the lithium battery pack by changing the equipment as claimed in claim 4, is characterized in that: the vibration damping mounting column (3) and the vibration damping positioning piece (30) are both arranged in a columnar mode and are arranged coaxially.
6. The device for realizing the ball striking experiment at the bottom of the lithium battery pack by changing the equipment as claimed in claim 5, is characterized in that: and the vibration reduction pieces (4) are arranged at the corners of the lower vibrating table (2).
7. The device for realizing the ball striking experiment at the bottom of the lithium battery pack by changing the equipment as claimed in claim 6, is characterized in that: a vibration plate (10) is arranged below the second vibration motor (6), and the vibration column (7) is connected to the vibration plate (10).
8. The device for realizing the ball striking experiment at the bottom of the lithium battery pack by changing the equipment as claimed in claim 7, is characterized in that: the vibrating column (7) and the bottom of the battery pack (9) are arranged at an angle.
9. The device for realizing the ball striking experiment at the bottom of the lithium battery pack by changing the equipment as claimed in claim 8, is characterized in that: the vibrating column (7) is perpendicular to the bottom of the battery pack (9).
10. The device for realizing the ball striking experiment at the bottom of the lithium battery pack by changing the equipment as claimed in claim 1, is characterized in that: the vibrating column (7) and the vibrating head (70) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110314007.0A CN113218609A (en) | 2021-03-24 | 2021-03-24 | Change equipment and realize lithium cell package bottom ball and hit experimental apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110314007.0A CN113218609A (en) | 2021-03-24 | 2021-03-24 | Change equipment and realize lithium cell package bottom ball and hit experimental apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113218609A true CN113218609A (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110314007.0A Pending CN113218609A (en) | 2021-03-24 | 2021-03-24 | Change equipment and realize lithium cell package bottom ball and hit experimental apparatus |
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| Country | Link |
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| CN (1) | CN113218609A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296763A (en) * | 2023-05-12 | 2023-06-23 | 宁德时代新能源科技股份有限公司 | Battery pack ball impact testing device and testing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763418A (en) * | 2019-10-21 | 2020-02-07 | 中国汽车技术研究中心有限公司 | Power battery system bottom ball impact reliability testing method |
| CN111693370A (en) * | 2020-06-30 | 2020-09-22 | 中国汽车工程研究院股份有限公司 | Battery pack top extrusion testing method |
-
2021
- 2021-03-24 CN CN202110314007.0A patent/CN113218609A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763418A (en) * | 2019-10-21 | 2020-02-07 | 中国汽车技术研究中心有限公司 | Power battery system bottom ball impact reliability testing method |
| CN111693370A (en) * | 2020-06-30 | 2020-09-22 | 中国汽车工程研究院股份有限公司 | Battery pack top extrusion testing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296763A (en) * | 2023-05-12 | 2023-06-23 | 宁德时代新能源科技股份有限公司 | Battery pack ball impact testing device and testing method |
| CN116296763B (en) * | 2023-05-12 | 2023-10-17 | 宁德时代新能源科技股份有限公司 | Battery pack ball impact testing device and testing method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 314500 988 Tong Tong Road, Wu Tong Street, Tongxiang, Jiaxing, Zhejiang Applicant after: United New Energy Automobile Co.,Ltd. Address before: 314500 988 Tong Tong Road, Wu Tong Street, Tongxiang, Jiaxing, Zhejiang Applicant before: Hozon New Energy Automobile Co., Ltd. Address after: 314500 988 Tong Tong Road, Wu Tong Street, Tongxiang, Jiaxing, Zhejiang Applicant after: Hozon New Energy Automobile Co., Ltd. Address before: 314500 988 Tong Tong Road, Wu Tong Street, Tongxiang, Jiaxing, Zhejiang Applicant before: Hozon New Energy Automobile Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210806 |