CN104330734A - Detection screening device of lithium battery protector switches - Google Patents
Detection screening device of lithium battery protector switches Download PDFInfo
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- CN104330734A CN104330734A CN201410700686.5A CN201410700686A CN104330734A CN 104330734 A CN104330734 A CN 104330734A CN 201410700686 A CN201410700686 A CN 201410700686A CN 104330734 A CN104330734 A CN 104330734A
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- ion cell
- protection device
- cell protection
- heating resistor
- device switch
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Abstract
The invention discloses a detection screening device of lithium battery protector switches. The detection screening device comprises a detection platform, a main power supply, an auxiliary power supply and a controller, wherein a plurality of stations are arranged on the detection platform, and each station is composed of a vent on the detection platform, a heating resistor and a cooling device; the heating resistor is located above the vents and the cooling devices are located below the vents; the lithium battery protector switches are placed on the heating resistors of the stations; through the main power supply, the stations are sequentially connected, and the lithium battery protector switches to be tested are connected in a detection loop in serial; each cooling device is connected to the output end of the controller, and the input end of the controller is connected to the auxiliary power supply. The detection screening device disclosed by the invention is special for the lithium battery protector switches; the multiple lithium battery protector switches can be systematically detected, so that conforming and nonconforming products can be screened out immediately, and failure rate of delivered conforming lithium battery protector switches can be reduced.
Description
Technical field
The invention belongs to li-ion cell protection device field, be specifically related to a kind ofly be exclusively used in the device detecting li-ion cell protection device switch and screen.
Background technology
Li-ion cell protection device is ingredient indispensable in lithium ion battery, and the safety ensureing lithium ion battery serves vital role.Especially the nowadays recent development li-ion cell protection device based on metal physics deformation out; be different from traditional li-ion cell protection device; its inside comprises a heating resistor and one by the metal physics protection switch that can automatically disconnect or recover after temperature influence; make switch triggering more rapidly sensitive, more reliably durable.
This li-ion cell protection device switch internal is made up of a moving contact and stationary contact, and moving contact is made up of two gold plaque or marmem usually.Its principle of work exactly when lithium battery generation excess temperature, overvoltage, overcharge or overcurrent time, heating resistor starts to carry out equilibrium to lithium battery, produce heat; when the temperature of heating resistor reaches setting value; direct triggering moving contact generation deformation, disconnects with stationary contact, plays the effect of protection lithium battery.
Due to the new product that above-mentioned this li-ion cell protection device switch has also just just emerged; its performance need is through a large amount of detections; and the failure rate of any product all exists one " tub curve "; namely when product has just been produced and closed on serviceable life; the failure rate of product is higher; a period of time internal fault rate in the middle of this is lower; usually durability analysis can be carried out; so be now badly in need of one both can carry out Performance Detection for above-mentioned li-ion cell protection device switch; the equipment of life tests can be carried out again, reduce failure rate.
Summary of the invention
In order to meet the demand, the present invention aims to provide a kind of detection screening plant of li-ion cell protection device switch, can carry out systematic detection to multiple li-ion cell protection device switch, the failure rate after reduction li-ion cell protection device switch dispatches from the factory.
For solving the problems of the technologies described above, the present invention is achieved through the following technical solutions:
A kind of detection screening plant of li-ion cell protection device switch, comprise monitor station, primary power, accessory power supply and controller, described monitor station is provided with several for detecting the station of li-ion cell protection device switch, each described station is opened in ventilating opening, a heating resistor and the cooling device composition on described monitor station by one, described heating resistor is positioned at above described ventilating opening, described cooling device is positioned at below described ventilating opening, and described cooling device aims at described heating resistor;
Each station can be laid a described li-ion cell protection device switch, described li-ion cell protection device switch is fixed on described heating resistor, described primary power connects one end of first described li-ion cell protection device switch, the other end of first described li-ion cell protection device switch is connected with one end of first described heating resistor, the other end of first described heating resistor is connected with one end of second described li-ion cell protection device switch, the other end of second described li-ion cell protection device switch is connected with one end of second described heating resistor, by that analogy, each described station is connected successively, each described cooling device is all connected with the output terminal of described controller, and the input end of described controller is connected with described accessory power supply.
Further, air-duct clapboard is provided with between each described station.
Preferably, described cooling device is fan or semiconductor cooler.
Cleaning Principle of the present invention is associated in measure loop by li-ion cell protection device switch series to be measured, by heating resistor and cooling device with the use of, make li-ion cell protection device switch repeatedly automatically shut down or open, reach testing goal.If monitor station has been installed 4 li-ion cell protection device switches to be measured, after primary power and accessory power supply are connected simultaneously, testing process of the present invention is as follows:
1) except first cooling device, its excess-three cooling device works simultaneously, cools the heating resistor of correspondence, detects first li-ion cell protection device switch situation;
2), after the time of delay adjustments, second cooling device is out of service, and its excess-three cooling device works simultaneously, cools the heating resistor of correspondence, detects second li-ion cell protection device switch situation;
3), after the time of delay adjustments, the 3rd cooling device is out of service, and its excess-three cooling device works simultaneously, cools the heating resistor of correspondence, detects the 3rd li-ion cell protection device switch situation;
4), after the time of delay adjustments, the 4th cooling device is out of service, and its excess-three cooling device works simultaneously, cools the heating resistor of correspondence, detects the 4th li-ion cell protection device switch situation;
5) move in circles above-mentioned steps 1-4, until stipulated time or number of times terminate.
Beneficial effect of the present invention is as follows:
The present invention is specially for li-ion cell protection device switch provides a kind of detection screening plant; li-ion cell protection device switch series to be measured is associated in measure loop; by heating resistor and cooling device with the use of, make li-ion cell protection device switch repeatedly automatically shut down or open, reach testing goal.The present invention can carry out systematic detection to multiple li-ion cell protection device switch, not only can immediately filter out certified products and unacceptable product, can also as efficient life tests equipment, reduce qualified li-ion cell protection device switch dispatch from the factory after failure rate.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the one-piece construction schematic diagram of an embodiment of the present invention;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is the one-piece construction schematic diagram of the another kind of embodiment of the present invention.
Number in the figure illustrates: 1, monitor station; 2, primary power; 3, accessory power supply; 4, controller; 5, li-ion cell protection device switch; 6, station; 7, ventilating opening; 8, heating resistor; 9, cooling device; 10, air-duct clapboard.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Shown in Fig. 1, Fig. 2, a kind of detection screening plant of li-ion cell protection device switch, comprise monitor station 1, primary power 2, accessory power supply 3 and controller 4, described monitor station 1 is provided with several for detecting the station 6 of li-ion cell protection device switch 5, each described station 6 is opened in ventilating opening 7, heating resistor 8 on described monitor station 1 by one and a cooling device 9 forms, described heating resistor 8 is positioned at above described ventilating opening 7, described cooling device 9 is positioned at below described ventilating opening 7, and described cooling device 9 aims at described heating resistor 8;
Each station 6 can be laid a described li-ion cell protection device switch 5, described li-ion cell protection device switch 5 is fixed on described heating resistor 8, described primary power 2 connects one end of first described li-ion cell protection device switch 5, the other end of first described li-ion cell protection device switch 5 is connected with one end of first described heating resistor 8, the other end of first described heating resistor 8 is connected with one end of second described li-ion cell protection device switch 5, the other end of second described li-ion cell protection device switch 5 is connected with one end of second described heating resistor 8, by that analogy, each described station 6 is connected successively, each described cooling device 9 is all connected with the output terminal of described controller 4, and the input end of described controller 4 is connected with described accessory power supply 3.
Further, shown in Figure 3, be provided with air-duct clapboard 10 between each described station 6.
Preferably, described cooling device 9 is fan or semiconductor cooler.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the detection screening plant of a li-ion cell protection device switch, it is characterized in that: comprise monitor station (1), primary power (2), accessory power supply (3) and controller (4), described monitor station (1) is provided with several for detecting the station (6) of li-ion cell protection device switch (5), each described station (6) is opened in the ventilating opening (7) on described monitor station (1) by one, one heating resistor (8) and a cooling device (9) composition, described heating resistor (8) is positioned at described ventilating opening (7) top, described cooling device (9) is positioned at described ventilating opening (7) below, described cooling device (9) aims at described heating resistor (8),
Each station (6) can be laid a described li-ion cell protection device switch (5), described li-ion cell protection device switch (5) is fixed on described heating resistor (8), described primary power (2) connects one end of first described li-ion cell protection device switch (5), the other end of first described li-ion cell protection device switch (5) is connected with one end of first described heating resistor (8), the other end of first described heating resistor (8) is connected with one end of second described li-ion cell protection device switch (5), the other end of second described li-ion cell protection device switch (5) is connected with one end of second described heating resistor (8), by that analogy, each described station (6) is connected successively, each described cooling device (9) is all connected with the output terminal of described controller (4), and the input end of described controller (4) is connected with described accessory power supply (3).
2. the detection screening plant of li-ion cell protection device switch according to claim 1, is characterized in that: be provided with air-duct clapboard (10) between each described station (6).
3. the detection screening plant of li-ion cell protection device switch according to claim 1 and 2, is characterized in that: described cooling device (9) is fan or semiconductor cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410700686.5A CN104330734B (en) | 2014-11-28 | 2014-11-28 | A kind of detection screening plant of li-ion cell protection device switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410700686.5A CN104330734B (en) | 2014-11-28 | 2014-11-28 | A kind of detection screening plant of li-ion cell protection device switch |
Publications (2)
| Publication Number | Publication Date |
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| CN104330734A true CN104330734A (en) | 2015-02-04 |
| CN104330734B CN104330734B (en) | 2017-07-07 |
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| CN201410700686.5A Active CN104330734B (en) | 2014-11-28 | 2014-11-28 | A kind of detection screening plant of li-ion cell protection device switch |
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Citations (9)
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|---|---|---|---|---|
| TW556974U (en) * | 2002-12-09 | 2003-10-01 | Ji-Hung Chen | Automatic tester of lithium ion battery |
| TW200740068A (en) * | 2006-04-06 | 2007-10-16 | Mitac Int Corp | Serially-connected battery set with breaker/protection switch |
| CN101762800A (en) * | 2010-01-28 | 2010-06-30 | 北京航空航天大学 | Battery managing system testing platform |
| CN201594133U (en) * | 2009-12-15 | 2010-09-29 | 天津力神电池股份有限公司 | Novel testing equipment for lithium ion battery protecting plates |
| CN102208696A (en) * | 2011-04-28 | 2011-10-05 | 常州格力博工具有限公司 | High-capacity lithium battery pack |
| CN202329850U (en) * | 2011-11-16 | 2012-07-11 | 江苏正佰电气有限公司 | Temperature rise detecting system of switch apparatus |
| CN203278206U (en) * | 2013-05-13 | 2013-11-06 | 深圳Tcl新技术有限公司 | Battery pack discharging protection circuit and device |
| CN104092190A (en) * | 2014-07-28 | 2014-10-08 | 中投仙能科技（苏州）有限公司 | Trigger type lithium battery physical protector based on equalization |
| CN204215015U (en) * | 2014-11-28 | 2015-03-18 | 中投仙能科技（苏州）有限公司 | A kind of detection screening plant of li-ion cell protection device switch |
-
2014
- 2014-11-28 CN CN201410700686.5A patent/CN104330734B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW556974U (en) * | 2002-12-09 | 2003-10-01 | Ji-Hung Chen | Automatic tester of lithium ion battery |
| TW200740068A (en) * | 2006-04-06 | 2007-10-16 | Mitac Int Corp | Serially-connected battery set with breaker/protection switch |
| CN201594133U (en) * | 2009-12-15 | 2010-09-29 | 天津力神电池股份有限公司 | Novel testing equipment for lithium ion battery protecting plates |
| CN101762800A (en) * | 2010-01-28 | 2010-06-30 | 北京航空航天大学 | Battery managing system testing platform |
| CN102208696A (en) * | 2011-04-28 | 2011-10-05 | 常州格力博工具有限公司 | High-capacity lithium battery pack |
| CN202329850U (en) * | 2011-11-16 | 2012-07-11 | 江苏正佰电气有限公司 | Temperature rise detecting system of switch apparatus |
| CN203278206U (en) * | 2013-05-13 | 2013-11-06 | 深圳Tcl新技术有限公司 | Battery pack discharging protection circuit and device |
| CN104092190A (en) * | 2014-07-28 | 2014-10-08 | 中投仙能科技（苏州）有限公司 | Trigger type lithium battery physical protector based on equalization |
| CN204215015U (en) * | 2014-11-28 | 2015-03-18 | 中投仙能科技（苏州）有限公司 | A kind of detection screening plant of li-ion cell protection device switch |
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| Publication number | Publication date |
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| CN104330734B (en) | 2017-07-07 |
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