CN201233323Y - Flow detecting device for battery safety valve - Google Patents
Flow detecting device for battery safety valve Download PDFInfo
- Publication number
- CN201233323Y CN201233323Y CNU2008200923967U CN200820092396U CN201233323Y CN 201233323 Y CN201233323 Y CN 201233323Y CN U2008200923967 U CNU2008200923967 U CN U2008200923967U CN 200820092396 U CN200820092396 U CN 200820092396U CN 201233323 Y CN201233323 Y CN 201233323Y
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- pressure
- safety valve
- air
- capacitor
- valve
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Abstract
The utility model belongs to the technical field of the detection, and provides a flow-rate detection device that is applied to a battery safety valve, which comprises a pressure source, a pressure control device, a pressure detection device, an air capacitor and an air flow-rate detection device, wherein, the pressure source and the safety valve are communicated with the air capacitor through the pressure control device, and the pressure detection device is arranged between the pressure source and the air capacitor, and the air flow-rate detection device is connected with the safety valve. Compared with the prior art, not only the test is more convenient and accurate, but also the security is remarkably improved and the time adopting the battery for the repeat verification can be greatly reduced, thereby shortening the design period of the battery safety structure, and reducing the cost, and providing condition for rapidly occupying the market.
Description
Technical field
The utility model belongs to the detection technique field, relates in particular to a kind of flow detector that is used for battery safety valve.
Background technology
Along with improving constantly of people's environmental consciousness, using electric automobile or PHEV to replace existing fuel vehicle must be a developing direction of following car industry.As the core drive energy---the power battery pack of electric automobile, it is particularly outstanding that its importance just seems.Vehicle mounted dynamic battery requires to have good high rate performance and security performance, and for cell, the safety valve structure design is extremely important, and its quality will directly have influence on the security performance of battery.
In the electrokinetic cell relief valve design, must obtain the starting pressure of safety valve and the flow of safety valve pressure release exactly.In order to reach this purpose, what traditional method adopted is the mode of reverse engineer, after soon relief valve device and battery combination will finish, be made into qualified battery, and then carry out a series of safety tests, as furnace temperature, acupuncture, extruding etc., the standard of the starting pressure of final just definite safety valve and the safety relief flow of safety valve.This method of testing is not only complicated but also dangerous, simultaneously also can the serious waste time, and in addition, for electrokinetic cell, this detection mode also makes the standard of safety valve determine that cost becomes quite high.
The utility model content
Technical problem to be solved in the utility model provides a kind of flow detector of battery safety valve, and is not only easy to detect, accurate, can also save time and cost.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is:
A kind of flow detector of battery safety valve is provided, it comprises a pressure source, pressure control device, pressure-detecting device, air-capacitor and gas flow pick-up unit, wherein, pressure source and safety valve all are connected with air-capacitor by pressure control device, pressure-detecting device is arranged between pressure source and the air-capacitor, and the gas flow pick-up unit is connected with described safety valve.
Adopt after such structure, only need by pressure control device the air pressure of pressure source output to be equated substantially with the pressure of inside battery earlier, in air-capacitor, pressurize again, after force value is stable, make the gas flow safety valve again, measure the gas gross that the certain hour internal safety valve is discharged by the gas flow proving installation, so just finish and detected.Compared with prior art, only need to change safety valve, just can be suitable for the needs of structure design verification of the safety valve of different batteries.It is more convenient, accurate that this makes that not only test becomes, and security also is significantly improved, and significantly reduced the time of adopting battery to verify repeatedly, thereby shortened the cell safety structure Design cycle, reduced cost, provide condition for dominating the market as early as possible.
Description of drawings
Fig. 1 is the structural representation of the preferred embodiment that provides of the utility model;
Fig. 2 is the structural representation of safety valve among Fig. 1.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
A preferred embodiment as depicted in figs. 1 and 2, it comprises a pressure source, pressure control device, pressure-detecting device, air-capacitor 7 and gas flow pick-up unit.Pressure source 1 and safety valve 100 all are connected with air-capacitor 7 by pressure control device, and pressure-detecting device is arranged between pressure source 1 and the air-capacitor 7, and the gas flow pick-up unit is connected with described safety valve 100.During concrete enforcement, as shown in Figure 1, the product that the connection between each element can adopt prior art to provide realizes, as tracheae 9 etc.; The gas flow pick-up unit can be selected gas meter 13 for use.
Only need by pressure control device the air pressure of pressure source 1 output to be equated substantially with the pressure of inside battery earlier, in air-capacitor 7, pressurize again, after force value is stable, make gas flow safety valve 100 again, measure the gas gross that certain hour internal safety valve 100 is discharged by the gas flow proving installation, so just finish and tested.Compared with prior art, it is more convenient, accurate to make that not only test becomes, and security also is significantly improved, significantly reduced the time of adopting battery to verify repeatedly, thereby shortened the cell safety structure Design cycle, reduced cost, especially the manufacturing cost of vehicle mounted dynamic battery great number provides condition for dominating the market as early as possible.
In order to make testing become more convenient and accurate, as the further improvement of aforementioned techniques scheme, a timer 6 can also be set, this timer 6 is connected with aforesaid pressure-detecting device.
As further preferred embodiment, the aforementioned pressure control module comprises pressure regulator valve 2, first pressure switch 3 and second pressure switch 8.The pressure regulator valve 2 and first pressure switch 3 are connected between described pressure source 1 and the air- capacitor 7, and 8 of second pressure switches are arranged between described air-capacitor 7 and the safety valve 100.
As further preferred embodiment, the aforementioned pressure detecting unit can comprise pressure transducer 4 and pressure digital display meter 5.Described pressure transducer 4 is connected with first pressure switch 3 and air-capacitor 7 respectively, and 6 of described pressure digital display meter 5 and timers all are connected with this pressure transducer 4.
As shown in Figure 2, aforementioned safety valve 100 comprises valve body 10, valve bonnet 12 and caulking gum 11.Valve body 10 is connected with described air-capacitor 7, and valve bonnet 12 is arranged on valve body 10 tops, and is connected with described gas flow pick-up unit, and caulking gum 11 is arranged in the valve bonnet 12.
During concrete the detection, at first be connected with the valve body 10 of safety valve 100, again caulking gum 11 put into safety valve 100 valve bonnets 12, safety valve 100 valve bonnets 12 are linked together with safety valve 100 valve bodies 10 with screw with tracheae 9; With pressure source 1 switch opens, turn pressure regulator valve 2, guarantee that manifold pressure equates substantially with the cell internal pressure, open first pressure switch 3 again, in air-capacitor 7, pressurize, observe the value on the pressure digital display meter 5, behind value stabilization on the pressure digital display meter 5, close first pressure switch 3, open second pressure switch 8, this moment, timer 6 also picked up counting; Then, safety valve 100 starts, gas meter 13 begins the gas flow that shows that safety valve 100 emits, when safety valve 100 cuts out, timer 6 and gas meter 13 are closed simultaneously, and the time of the value of gas meter 13 demonstrations this moment and timer 6 reflections is exactly the gas gross that these safety valve 100 structures are discharged within a certain period of time.So just finished the flow detection work of battery safety valve 100.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1, a kind of flow detector of battery safety valve, it is characterized in that: it comprises a pressure source, pressure control device, pressure-detecting device, air-capacitor and gas flow pick-up unit, wherein, pressure source and safety valve all are connected with air-capacitor by pressure control device, pressure-detecting device is arranged between pressure source and the air-capacitor, and the gas flow pick-up unit is connected with described safety valve.
2, flow detector according to claim 1 is characterized in that: this flow detector also comprises timer, and this timer is connected with described pressure-detecting device.
3, flow detector according to claim 2, it is characterized in that: described pressure control unit comprises pressure regulator valve, first pressure switch and second pressure switch, wherein, the pressure regulator valve and first pressure switch are connected between described pressure source and the air-capacitor, and second pressure switch then is arranged between described air-capacitor and the safety valve.
4, flow detector according to claim 3, it is characterized in that: described pressure sensing cell comprises pressure transducer and pressure digital display meter, described pressure transducer is connected with first pressure switch and air-capacitor respectively, and described pressure digital display meter and timer then all are connected with this pressure transducer.
5, according to each described flow detector of claim 1 to 4, it is characterized in that: described safety valve comprises valve body, valve bonnet and caulking gum, wherein, valve body is connected with described air-capacitor, valve bonnet is arranged on the valve body top, and be connected with described gas flow pick-up unit, caulking gum is arranged in the valve bonnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200923967U CN201233323Y (en) | 2008-02-28 | 2008-02-28 | Flow detecting device for battery safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200923967U CN201233323Y (en) | 2008-02-28 | 2008-02-28 | Flow detecting device for battery safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201233323Y true CN201233323Y (en) | 2009-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200923967U Expired - Fee Related CN201233323Y (en) | 2008-02-28 | 2008-02-28 | Flow detecting device for battery safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201233323Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949772A (en) * | 2010-09-29 | 2011-01-19 | 奇瑞汽车股份有限公司 | Method for measuring pressure reliving rate of pressure reducing valve and detection method of pressure reducing valve |
| CN101793586B (en) * | 2009-12-31 | 2011-07-20 | 熊辉 | Precise testing device of safety valve of cylindrical lithium-ion battery |
| CN104730465A (en) * | 2015-03-04 | 2015-06-24 | 宁德新能源科技有限公司 | Lithium ion battery detection system and detection method applying same |
| CN109186982A (en) * | 2018-09-25 | 2019-01-11 | 芜湖优能自动化设备有限公司 | A kind of pressure-detecting device for relief valve |
| CN111208441A (en) * | 2020-01-17 | 2020-05-29 | 恒大新能源汽车科技(广东)有限公司 | Battery testing device |
| CN113447261A (en) * | 2021-07-16 | 2021-09-28 | 上海廷本流体控制有限公司 | Detection system and detection method for safety valve |
-
2008
- 2008-02-28 CN CNU2008200923967U patent/CN201233323Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793586B (en) * | 2009-12-31 | 2011-07-20 | 熊辉 | Precise testing device of safety valve of cylindrical lithium-ion battery |
| CN101949772A (en) * | 2010-09-29 | 2011-01-19 | 奇瑞汽车股份有限公司 | Method for measuring pressure reliving rate of pressure reducing valve and detection method of pressure reducing valve |
| CN104730465A (en) * | 2015-03-04 | 2015-06-24 | 宁德新能源科技有限公司 | Lithium ion battery detection system and detection method applying same |
| CN104730465B (en) * | 2015-03-04 | 2017-08-08 | 宁德时代新能源科技股份有限公司 | Lithium ion battery detection system and detection method adopting same |
| CN109186982A (en) * | 2018-09-25 | 2019-01-11 | 芜湖优能自动化设备有限公司 | A kind of pressure-detecting device for relief valve |
| CN111208441A (en) * | 2020-01-17 | 2020-05-29 | 恒大新能源汽车科技(广东)有限公司 | Battery testing device |
| CN111208441B (en) * | 2020-01-17 | 2022-04-19 | 恒大恒驰新能源汽车科技(广东)有限公司 | Battery testing device |
| CN113447261A (en) * | 2021-07-16 | 2021-09-28 | 上海廷本流体控制有限公司 | Detection system and detection method for safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20160228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |