CN202836908U - Battery pack liquid leakage detection system - Google Patents
Battery pack liquid leakage detection system Download PDFInfo
- Publication number
- CN202836908U CN202836908U CN 201220488147 CN201220488147U CN202836908U CN 202836908 U CN202836908 U CN 202836908U CN 201220488147 CN201220488147 CN 201220488147 CN 201220488147 U CN201220488147 U CN 201220488147U CN 202836908 U CN202836908 U CN 202836908U
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- battery
- electric battery
- detection system
- battery pack
- load
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Abstract
The utility model provides a battery pack liquid leakage detection system, which comprises a battery pack, a metal battery box for accommodating the battery pack, an input power supply, a load and a voltage detection device, wherein the battery pack, the input power supply, the load and the battery box shell are connected in series; and the voltage detection device is connected parallelly with the metal battery box or the load. By adopting the technical scheme provided by the utility model, liquid leakage of the battery pack can be detected, the battery cell to which liquid leakage happens can be accurately calculated through simple calculation, and replacement of the battery cell is more facilitated; the system is designed based on the original battery pack, and thus the battery pack liquid leakage detection system can be added when the structure of the original battery pack is not changed; and the battery pack liquid leakage detection system has the advantages that popularization and use are facilitated, operation is simple and the result is accurate.
Description
Technical field
The utility model relates to a kind of electric battery detection system, especially a kind of electric battery leakage detection system.
Background technology
Polymer flexible packaging lithium ion battery has the advantages such as voltage is high, specific energy is high, recycle often, storage time is long, use several battery cell connection in series-parallel to form after the battery module, can be widely used in the big-and-middle-sized electrical equipment aspects such as electric automobile, electric bicycle and electric tool.
In the prior art, battery module is contained in the battery case, owing to need to take into account heat-sinking capability and the stability of battery case, generally adopts the metal battery case as the container that holds battery module; Lithium ion battery is owing to the defective that self exists or mount fixing structure is unreasonable, after use after a while, the inefficacy that may have leakage occurs, the electrolytic solution that spills is a kind of conduction organic material, electrolyte leakage with electric battery and battery case conducting, causes battery case charged to the battery tank wall the time, the high-tension electricity of electric battery may be given passenger and the electron device cause danger in the electric automobile, causes potential safety hazard.
The utility model content
The purpose of this utility model provides a kind of system that detects the electric battery leakage.
For reaching above-mentioned purpose, the utility model provides a kind of electric battery leakage detection system, it comprises electric battery, accommodates metal-made battery case, input power, load and the voltage check device of electric battery, electric battery, input power, load and battery case shell are connected in series, and described voltage check device is parallel to metal battery case or load.
Electric battery, input power, load and battery case shell are connected in series, if electric battery is working properly leakage do not occur, and then this circuit is considered as opening circuit, and do not have or can only detect very little voltage; If electric battery operation irregularity generation leakage, then the magnitude of voltage of voltage check device detection is higher, for input supply voltage adds the battery cell of leakage and the pressure reduction of maximum potential.
The input power of connecting in series circuit is convenient to calculate the present position of battery cell of electric battery internal leakage, and the magnitude of voltage that voltage check device detects is that input supply voltage adds the battery cell of leakage and the pressure reduction of maximum potential.
As preferably, described voltage check device is parallel to load.
Load reduces input power to the impact of electric battery, and voltage check device is parallel to load so that the voltage that voltage check device records is more accurate.
As preferably, described load comprises resistance.
Use resistance as load, assembling is simple, and reliability is high.
As preferably, described resistance comprises that resistance is the resistance of 50k Ω to 300k Ω.
Selecting resistance is the resistance of 50k Ω to 300k Ω, can reduce input power to the impact of electric battery, has also guaranteed the accuracy of voltage check device reading simultaneously.
As preferably, described resistance comprises that resistance is the resistance of 100k Ω.
Selecting resistance is the resistance of 100k Ω, can further reduce input power to the impact of electric battery.
As preferably, the positive terminal of input power arranges unilateral diode on the described series circuit.
The positive terminal of input power arranges unilateral diode on series circuit, can prevent the high voltage of electric battery to the impact of input power, prevents that input power from being burnt out by the inverse current of electric battery.
As preferably, on the described series circuit detector switch is set.
Because the leakage situation is a generating process, can not occur suddenly, do not need to detect very frequently so detect the words of leakage, detect just passable every a period of time; When needs detect, with regard to occlusion detection switch (anode can be connected to casing by input power during detection), just disconnect when not needing to detect, guarantee the fully disconnection of battery and casing.
After the technical scheme that employing the utility model provides, can when electric battery generation leakage, detect, and can calculate exactly the battery unit that leakage occurs by simple calculating, more be convenient to change battery unit; System can increase the electric battery leakage detection system in the situation that do not change primary element group structure based on the design of primary element group, is convenient to promote the use of, and simple to operate, the result is accurate.
Description of drawings
Fig. 1 is electric battery leakage detection system electrical schematics.
Wherein, 1, battery case, 11, electric battery, 2, input power, 3, load, 4, voltage check device, 5, unilateral diode, 6, detector switch.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
Embodiment 1
As shown in Figure 1, the electric battery leakage detection system that the utility model provides, it comprises metal-made battery case 1, electric battery 11, input power 2, load 3, voltage check device 4, unilateral diode 5 and detector switch 6, at first electric battery 11, battery case 1, input power 2, load 3, voltage check device 4 and unilateral diode 5 are cascaded, it is the resistance of 50k Ω that resistance is selected in load 3; Occlusion detection switch 6, when electric battery 11 is working properly when leakage not occuring, then this circuit is considered as opening circuit, and voltage check device 4 does not have reading or can only detect very little voltage; If electric battery 11 operation irregularity generation leakages, then the reading of voltage check device 4 detections shows that magnitude of voltage is higher, and show in the electric battery 11 have battery unit that leakage has occured, defective insulation this moment.
Embodiment 2
As shown in Figure 1, the electric battery leakage detection system that the utility model provides, it comprises metal-made battery case 1, electric battery 11, input power 2, load 3, voltage check device 4 unilateral diodes 5 and detector switch 6, at first electric battery 11, battery case 1, input power 2, load 3, voltage check device 4 and unilateral diode 5 are cascaded, it is the resistance of 100k Ω that resistance is selected in load 3; Occlusion detection switch 6, when electric battery 11 is working properly when leakage not occuring, then this circuit is considered as opening circuit, and voltage check device 4 does not have reading or can only detect very little voltage; If electric battery 11 operation irregularity generation leakages, then the reading of voltage check device 4 detections shows that magnitude of voltage is higher, and show in the electric battery 11 have battery unit that leakage has occured, defective insulation this moment.
Embodiment 3
As shown in Figure 1, the electric battery leakage detection system that the utility model provides, it comprises metal-made battery case 1, electric battery 11, input power 2, load 3, voltage check device 4 unilateral diodes 5 and detector switch 6, at first electric battery 11, battery case 1, input power 2, load 3, voltage check device 4 and unilateral diode 5 are cascaded, it is the resistance of 300k Ω that resistance is selected in load 3; Occlusion detection switch 6, when electric battery 11 is working properly when leakage not occuring, then this circuit is considered as opening circuit, and voltage check device 4 does not have reading or can only detect very little voltage; If electric battery 11 operation irregularity generation leakages, then the reading of voltage check device 4 detections shows that magnitude of voltage is higher, and show in the electric battery 11 have battery unit that leakage has occured, defective insulation this moment.
Claims (7)
1. electric battery leakage detection system, comprise electric battery, accommodate metal-made battery case, input power, load and the voltage check device of electric battery, it is characterized in that: electric battery, input power, load and battery case shell are connected in series, and described voltage check device is parallel to metal battery case or load.
2. electric battery leakage detection system according to claim 1, it is characterized in that: described voltage check device is parallel to load.
3. electric battery leakage detection system according to claim 2, it is characterized in that: described load comprises resistance.
4. electric battery leakage detection system according to claim 3, it is characterized in that: described resistance comprises that resistance is the resistance of 50k Ω to 300k Ω.
5. electric battery leakage detection system according to claim 4, it is characterized in that: described resistance comprises that resistance is the resistance of 100k Ω.
6. electric battery leakage detection system according to claim 1, it is characterized in that: the positive terminal of input power arranges unilateral diode on the described series circuit.
7. electric battery leakage detection system according to claim 1 is characterized in that: on the described series circuit detector switch is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220488147 CN202836908U (en) | 2012-09-24 | 2012-09-24 | Battery pack liquid leakage detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220488147 CN202836908U (en) | 2012-09-24 | 2012-09-24 | Battery pack liquid leakage detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202836908U true CN202836908U (en) | 2013-03-27 |
Family
ID=47948590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220488147 Withdrawn - After Issue CN202836908U (en) | 2012-09-24 | 2012-09-24 | Battery pack liquid leakage detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202836908U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674454A (en) * | 2012-09-24 | 2014-03-26 | 微宏动力系统（湖州）有限公司 | Battery-pack leakage-liquid detection system |
| CN105606317A (en) * | 2016-03-13 | 2016-05-25 | 陈志刚 | Wine jar leak detection apparatus |
| CN106124999A (en) * | 2016-08-11 | 2016-11-16 | 深圳市柏特瑞电子有限公司 | The method and apparatus of a certain battery leakage in a kind of on-line checking accumulator battery |
-
2012
- 2012-09-24 CN CN 201220488147 patent/CN202836908U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674454A (en) * | 2012-09-24 | 2014-03-26 | 微宏动力系统（湖州）有限公司 | Battery-pack leakage-liquid detection system |
| CN105606317A (en) * | 2016-03-13 | 2016-05-25 | 陈志刚 | Wine jar leak detection apparatus |
| CN106124999A (en) * | 2016-08-11 | 2016-11-16 | 深圳市柏特瑞电子有限公司 | The method and apparatus of a certain battery leakage in a kind of on-line checking accumulator battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 313000 Huzhou economic and Technological Development Zone, Zhejiang, Hung Fung Road, No. 2198 Patentee after: Microvast Power System (Huzhou) Co., Ltd. Address before: 313000 Zhejiang city of Huzhou province Huzhou City Road No. 1555 sunny Industrial Science and Technology Park 1 Patentee before: Microvast Power System (Huzhou) Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130327 Effective date of abandoning: 20170329 |