CN109828214B - Power battery short circuit testing device - Google Patents
Power battery short circuit testing device Download PDFInfo
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- CN109828214B CN109828214B CN201711152126.0A CN201711152126A CN109828214B CN 109828214 B CN109828214 B CN 109828214B CN 201711152126 A CN201711152126 A CN 201711152126A CN 109828214 B CN109828214 B CN 109828214B
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Abstract
The power battery monomer has large capacity and high discharge rate, and is a main power supplier of a new energy automobile. According to the requirements of the national standard GT/B31485 and 2015, the power battery must pass a short circuit test. When the power battery is tested in a short circuit mode, instantaneous current can reach more than ten thousand amperes sometimes, and corresponding testing equipment is high in requirement, high in price, large in investment and long in purchase period. The invention discloses a power battery short circuit testing device, which adopts a special design and utilizes a unique tool to achieve the purpose of carrying out short circuit testing on a power battery, is cheap and practical, and has a main structure made of easily available materials and accessories.
Description
Technical Field
The invention belongs to the technical field of power battery testing, and particularly relates to a power battery short circuit testing device.
Background
The total delivery of lithium power battery enterprises in China in 2016 is 30.5Gwh, which is 79.4% longer than the total delivery of lithium power battery enterprises in China. The fire explosion of the new energy vehicle market drives the continuous high-speed development of the lithium power battery industry. The total planned energy of the power battery in 2017 can reach 230.1GWH, the equivalent increase is 127.8%, and the effective total energy at the end of 2017 is predicted to be about 170 GWH and 180 GWH. The power battery industry is in an explosive growth situation, and most enterprises participating in the explosive growth situation have great profits, and meanwhile, more enterprise institutions are attracted to participate in investment and development of power batteries.
The state also supports the development of new energy production lines, and forms a whole set of policy support systems such as purchase subsidies, operation subsidies, scientific and technological research and development, charging facility construction rewards, technical standards, supervision platforms and the like.
Meanwhile, most new energy vehicles are used for carrying people, safety is the greatest importance, a series of standards are successively issued to the country, strict requirements are put forward on the quality of power batteries of power units of the new energy vehicles, and the published standard is GB/T
31484-.
GB/T31485-. The single power battery has large capacity, some of the single power battery even reaches 200Ah, the discharge rate is high, once the single power battery is in short circuit, the instantaneous current sometimes can reach more than 10000A, the requirement on detection equipment is very high, and the detection equipment is expensive. In addition, the short circuit test is a destructive test, and once the product is shaped to the maximum, the product is tested in a drawing mode, so that the equipment is idle for most of time, and the capital is occupied, and the waste is caused. If some cheap frock clamps can be designed and manufactured to replace expensive test equipment, the design is very practical, the internal test is firstly carried out, and the battery is sent to a professional laboratory for test after passing the test, so that much money can be saved.
Disclosure of Invention
The invention discloses a power battery short circuit testing device, which adopts a special design and utilizes a unique tool to achieve the purpose of carrying out short circuit testing on a power battery, is cheap and practical, and has a main structure made of easily available materials and accessories.
The power battery short circuit testing device is designed for replacing expensive professional equipment, can meet the requirements of national standards on testing equipment, and is quite low in cost.
The technical scheme of the invention is as follows:
a power battery short circuit testing device comprises an upper refute fire tray (1), a lower refute fire tray (2), a heavy object (3), a pulling latch (4), an anode cable (5), a cathode cable (6) and a bracket (7), wherein the lower refute fire tray (2) is fixed on the bracket (7) and is connected with a battery (8) electrode through the anode cable (5) and the cathode cable (6), the upper end of the upper refute fire tray (1) is connected with the bracket (7) through the pulling latch (4), the lower end of the upper refute fire tray is connected with the heavy object (3) through a hole in the lower refute fire tray (2) and is connected with the battery (8) electrode through the anode cable (5) and the cathode cable (6), the battery is connected according to the structure during working, then the pulling latch (4) out quickly, the upper refute fire tray (1) is driven by the heavy object (3) to be rapidly contacted with the lower refute fire tray (2), and the anode and the cathode of the battery (8) are short circuit immediately, the purpose of short circuit test is achieved.
The upper lighter fire disc (1) consists of lighter fire plates, an upper connecting rod and a lower connecting rod, wherein the lighter fire plates are provided with internal thread holes for connecting an anode cable (5) and a cathode cable (6), the upper connecting rod and the lower connecting rod are connected with the center positions of two sides of the lighter fire plates through threads, and the tail ends of the upper connecting rod and the lower connecting rod are respectively provided with a circular ring.
Refute fire dish (2) down by refute the fire board and constitute, refute the fire board middle empty, the edge has the internal screw hole to be used for connecting anodal cable (5), negative pole cable (6).
The bracket (7) supports the lower refute fire plate (2), a test battery (8) is placed, a connector with a pair of holes is arranged on the bracket, and the upper refute fire plate (1) is fixed on the bracket (7) through the pulling bolt (4) and a circular ring on an upper connecting rod of the upper refute fire plate (1).
And two ends of the positive cable (5) and the negative cable (6) are respectively provided with a copper nose which is connected with the upper and lower fire trays (2) and the positive and negative ends of the battery (8) through fasteners.
After the upper refuting fire tray (1) and the lower refuting fire tray (2) are tightly contacted under the action of the weight (3), the internal resistance of two ends of the positive cable (5) and the negative cable (6) connected with the upper refuting fire tray is less than 5m omega.
The upper refuting fire tray (1) and the lower refuting fire tray (2) are made of one of copper, silver, gold, aluminum and graphite.
Drawings
Fig. 1 is a schematic structural diagram of a power battery short circuit testing device of the invention.
FIG. 2 is a schematic structural view of a lighter fire tray.
FIG. 3 is a schematic structural view of a lower barge fire tray.
Fig. 4 is a schematic view of the structure of the weight.
Fig. 5 is a schematic drawing of the structure of the pulling latch.
Fig. 6 is a schematic structural diagram of the positive cable.
Fig. 7 is a schematic diagram of a negative cable structure.
Fig. 8 is a (partial) structural schematic view of the stent.
Detailed Description
The following description is intended as an additional illustration of the invention and not as a limitation thereof.
Examples
A power battery short circuit testing device comprises an upper refute fire tray (1), a lower refute fire tray (2), a heavy object (3), a pulling latch (4), an anode cable (5), a cathode cable (6) and a bracket (7), wherein the lower refute fire tray (2) is fixed on the bracket (7) and is connected with a battery (8) electrode through the anode cable (5) and the cathode cable (6), the upper end of the upper refute fire tray (1) is connected with the bracket (7) through the pulling latch (4), the lower end of the upper refute fire tray is connected with the heavy object (3) through a hole in the lower refute fire tray (2) and is connected with the battery (8) electrode through the anode cable (5) and the cathode cable (6), the battery is connected according to the structure during working, then the pulling latch (4) out quickly, the upper refute fire tray (1) is driven by the heavy object (3) to be rapidly contacted with the lower refute fire tray (2), and the anode and the cathode of the battery (8) are short circuit immediately, the purpose of performing the short circuit test is achieved as shown in fig. 1-8.
The upper lighter fire plate (1) consists of lighter fire plates, an upper connecting rod and a lower connecting rod, wherein the lighter fire plates are provided with internal thread holes for connecting an anode cable (5) and a cathode cable (6), the upper connecting rod and the lower connecting rod are connected with the center positions of two sides of the lighter fire plates through threads, and the tail ends of the upper connecting rod and the lower connecting rod are respectively provided with a circular ring, as shown in figure 2.
The lower fire connection plate (2) is composed of fire connection plates, the middle of each fire connection plate is hollow, and the edge of each fire connection plate is provided with an internal thread hole for connecting a positive cable (5) and a negative cable (6), as shown in figure 3.
The bracket (7) supports the lower refute fire plate (2), a test battery (8) is placed, a connector with a pair of holes is arranged on the bracket, and the upper refute fire plate (1) is fixed on the bracket (7) through a pulling latch (4) and a circular ring on an upper connecting rod of the upper refute fire plate (1), as shown in figures 1 and 8.
The two ends of the positive cable (5) and the negative cable (6) are respectively provided with a copper nose which is connected with the upper and lower fire trays (2) and the positive and negative ends of the battery (8) through fasteners, as shown in figures 7 and 8.
After the upper lapel fire tray (1) and the lower lapel fire tray (2) are tightly contacted under the action of the weight (3), the internal resistance of two ends of the positive cable (5) and the negative cable (6) connected with the upper lapel fire tray is less than 5m omega.
The upper refuting fire plate (1) and the lower refuting fire plate (2) are made of one of copper, silver, gold, aluminum and graphite.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (7)
1. A power battery short circuit testing device comprises an upper refute fire tray (1), a lower refute fire tray (2), a heavy object (3), a pulling latch (4), an anode cable (5), a cathode cable (6) and a bracket (7), and is characterized in that the lower refute fire tray (2) is fixed on the bracket (7) and is connected with a battery (8) electrode through the anode cable (5) and the cathode cable (6), the upper end of the upper refute fire tray (1) is connected with the bracket (7) through the pulling latch (4), the lower end of the upper refute fire tray (1) is connected with the heavy object (3) through a hole on the lower refute fire tray (2) and is connected with the battery (8) electrode through the anode cable (5) and the cathode cable (6), the battery is connected according to the structure during working, then the pulling latch (4) out quickly, the upper refute fire tray (1) is driven by the heavy object (3) to be rapidly contacted with the lower fire tray (2), and the anode and the cathode of the battery (8) are short-circuited immediately, the purpose of short circuit test is achieved.
2. The power battery short circuit testing device according to claim 1, wherein the upper refute fire tray (1) is composed of a refute fire plate, an upper connecting rod and a lower connecting rod, the refute fire plate is provided with an internal thread hole for connecting a positive cable (5) and a negative cable (6), the upper connecting rod and the lower connecting rod are connected with the center positions of two sides of the refute fire plate through threads, and the tail ends of the upper connecting rod and the lower connecting rod are respectively provided with a circular ring.
3. The power battery short circuit testing device according to claim 1, wherein the lower fire connection plate (2) is composed of fire connection plates, the fire connection plates are hollow in the middle, and the edges of the fire connection plates are provided with inner threaded holes for connecting the positive cable (5) and the negative cable (6).
4. The power battery short circuit testing device according to claim 1, wherein the bracket (7) supports the lower refute fire plate (2), the testing battery (8) is placed on the bracket, the connector is provided with a pair of open holes, and the upper refute fire plate (1) is fixed on the bracket (7) through the latch (4) and a circular ring on the upper connecting rod of the upper refute fire plate (1).
5. The power battery short circuit testing device according to claim 1, wherein two ends of the positive cable (5) are respectively provided with a copper nose, and are respectively connected with the upper refuting fire plate (1) through one end of a fastener, and the other end of the positive cable is connected with the positive electrode of the battery (8); and two ends of the negative cable (6) are respectively provided with a copper nose, and are respectively connected with the lower lighter fire disc (2) through one end of a fastener, and the other end of the negative cable is connected with the negative electrode of the battery (8).
6. The power battery short circuit testing device according to claim 1, wherein after the upper refuting fire tray (1) and the lower refuting fire tray (2) are tightly contacted under the action of the weight (3), the internal resistance at two ends of the positive cable (5) and the negative cable (6) connected to the upper refuting fire tray is less than 5m Ω.
7. The power battery short circuit testing device according to claim 1, wherein the upper refute fire tray (1) and the lower refute fire tray (2) are made of one of copper, silver, gold, aluminum and graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711152126.0A CN109828214B (en) | 2017-11-19 | 2017-11-19 | Power battery short circuit testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711152126.0A CN109828214B (en) | 2017-11-19 | 2017-11-19 | Power battery short circuit testing device |
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| CN109828214A CN109828214A (en) | 2019-05-31 |
| CN109828214B true CN109828214B (en) | 2021-08-17 |
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| CN201711152126.0A Active CN109828214B (en) | 2017-11-19 | 2017-11-19 | Power battery short circuit testing device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452057A (en) * | 2007-12-07 | 2009-06-10 | 株式会社Ntt都科摩 | Battery testing device and battery testing method |
| CN202433476U (en) * | 2012-01-10 | 2012-09-12 | 广西天鹅蓄电池有限责任公司 | Improved short circuit testing machine |
| CN203811640U (en) * | 2014-05-22 | 2014-09-03 | 湖北蜂鸟科技股份有限公司 | Test fixture applicable to short-circuit test of lithium ion batteries |
| CN104597410A (en) * | 2015-01-27 | 2015-05-06 | 肇庆市风华锂电池有限公司 | Lithium ion battery short circuit detecting device and method |
| CN204516866U (en) * | 2015-04-02 | 2015-07-29 | 河北金力新能源科技股份有限公司 | A kind of stretching device of lithium ion battery separator semi-fixed type |
| CN204556800U (en) * | 2015-04-15 | 2015-08-12 | 浙江金开来新能源科技有限公司 | A kind of electric pole short circuit proving installation for lithium battery |
-
2017
- 2017-11-19 CN CN201711152126.0A patent/CN109828214B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452057A (en) * | 2007-12-07 | 2009-06-10 | 株式会社Ntt都科摩 | Battery testing device and battery testing method |
| CN202433476U (en) * | 2012-01-10 | 2012-09-12 | 广西天鹅蓄电池有限责任公司 | Improved short circuit testing machine |
| CN203811640U (en) * | 2014-05-22 | 2014-09-03 | 湖北蜂鸟科技股份有限公司 | Test fixture applicable to short-circuit test of lithium ion batteries |
| CN104597410A (en) * | 2015-01-27 | 2015-05-06 | 肇庆市风华锂电池有限公司 | Lithium ion battery short circuit detecting device and method |
| CN204516866U (en) * | 2015-04-02 | 2015-07-29 | 河北金力新能源科技股份有限公司 | A kind of stretching device of lithium ion battery separator semi-fixed type |
| CN204556800U (en) * | 2015-04-15 | 2015-08-12 | 浙江金开来新能源科技有限公司 | A kind of electric pole short circuit proving installation for lithium battery |
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| CN109828214A (en) | 2019-05-31 |
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Effective date of registration: 20221019 Address after: 523000 Building 9, Dasheng Industrial City, No. 1438, Provincial Road S358, Shangsha Community, Chang'an Town, Dongguan City, Guangdong Province Patentee after: Dongguan Grind Energy Co.,Ltd. Address before: 518105 4th Floor, Building A2, Liyuan Bay Industrial Park, 168 Honghu Road, Yanchuan, Songgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN GRAND POWERSOURCE Co.,Ltd. |
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