CN2772902Y - Mixed gas generator of safety gasbag with side bump protection for vehicle - Google Patents
Mixed gas generator of safety gasbag with side bump protection for vehicle Download PDFInfo
- Publication number
- CN2772902Y CN2772902Y CNU2005200111528U CN200520011152U CN2772902Y CN 2772902 Y CN2772902 Y CN 2772902Y CN U2005200111528 U CNU2005200111528 U CN U2005200111528U CN 200520011152 U CN200520011152 U CN 200520011152U CN 2772902 Y CN2772902 Y CN 2772902Y
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- gas
- electric igniter
- gas generator
- closing
- pyrotechnics
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Abstract
The utility model discloses a mixed type gas generator for a safety gasbag for side bump protection for a vehicle, which solves the insufficiencies of complicated structure, complicated assembly technique, high cost, etc. of the prior art. The mixed type gas generator for a safety gasbag for side bump protection for a vehicle comprises a high pressure cylinder, and one end of the high pressure cylinder is communicated with a gas generating device which comprises a firework gas bottle, and both ends of the firework gas bottle are opened. A gas generating medicine chamber is arranged in the firework gas bottle, wherein one end of the gas generating medicine chamber is provided with an electric ignition device, and the other end of the gas generating medicine chamber forms a tapered closing-up opening shape. The surrounding of the tapered closing-up opening is provided with a filter screen, an exhaust vent is arranged on the firework gas cylinder and an opening end of the firework gas cylinder is provided with an arc-shaped bursting sheet. A sealing ring is arranged between the electric ignition device and an electric ignition device seat, and the electric ignition device and the electric ignition device seat are pressed and connected through the closing-up opening at the same time. The utility model enables assembling process to be simplified, and thus production cost is reduced. The bursting sheet is designed in the shape of an inverse arc, and the back of the bursting sheet is provided with a groove, which is in favor of inverse blasting. The tapered closing-up opening of the gas generating chamber can be used for carrying out adjustment in a releasing direction on gas after the gas generating medicine is burnt, which is in favor of rapidly breaking the bursting sheet.
Description
Technical field
The utility model relates to a kind of gas generator, relates in particular to a kind of safe automobile air bag gas generator.
Background technology
Along with the raising of Freeway Development and automotive performance, automobile driving speed is more and more faster, and traffic is more and more crowded, and it is frequent to cause the accident, so vehicle safety is more and more important.Vehicle safety is divided into two kinds of active safety and passive securities, safe automobile air bag is one of high-tech product in the vehicle passive safety technology, its design-calculated basic thought is: after automobile bumps, before occupant and the collision of car inner member, between the two, open a gassiness air cushion rapidly, the occupant " is pounced on " on air cushion, impact and the absorption collision energy to relax, thereby reach the purpose that alleviates the occupant injury degree.Concrete action principle is: in vehicle traveling process, sensor amplification system in the gas-bag system constantly changes (or acceleration/accel) information to the electronic control unit transmission speed, electronic control unit is to these information analysis and judgement in addition, if institute's measuring acceleration, velocity variable or other variable quantities surpass predetermined value (collision case has promptly really taken place), then electronic control unit sends firing command or the igniting of sensor direct control to gas generator, the reaction of blasting after the igniting produces N2 or the pressure gas in the storage tank is discharged and is full of airbag rapidly.When the occupant contacts with airbag,, thereby reach the purpose of protecting the member by the damping absorption collision energy of airbag upper air-vent.Gas generator is the parts that produce gas, is the gas source in the safe automobile air bag.The gas generator that is used for safe automobile air bag in the world mainly contains three kinds of forms: pyrotechnic, high-pressure gas bottle formula and hybrid.The fast burn that the gas part of hybrid gas generator derives from pyrotechnic composition discharges, and another part derives from the high pressure gas of compression in advance.Hybrid gas generator described in the utility model patent is mainly used in gas flows such as automobile side impact protecting safety airbag, knee protection air bag to be needed less and the very fast safety air bag of generation gas velocity.Existing hybrid generator architecture complexity, assembly technology complexity, the cost height.
The utility model content
At above-mentioned deficiency, the utility model provides a kind of simple in structure, hybrid gas generator of automobile side impact protecting safety airbag that cost is low.
For achieving the above object; the utility model is by the following technical solutions: the hybrid gas generator of a kind of automobile side impact protecting safety airbag; comprise a high-pressure gas bottle; described high-pressure gas bottle one end communicates with aerogenesis apparatus; described aerogenesis apparatus comprises the pyrotechnics gas cylinder of a both ends open; described pyrotechnics gas cylinder is built-in with the aerogenesis coyote hole; described aerogenesis coyote hole one end is equipped with electric igniter; the tapered closing in of the other end; around closing up, described taper is equipped with filtering net; with the cooresponding position of described filtering net; be equipped with deflation hole on the described pyrotechnics gas cylinder, an end opening of described pyrotechnics gas cylinder closes up with described taper and fits mutually, and this open end is equipped with the arch rupture disk; the arc-shaped protrusions part of this arch rupture disk closes up towards described taper, and the back of described arch rupture disk is equipped with groove.
As further improvement: described aerogenesis coyote hole is equipped with gas generant composition in accordance, is equipped with the buffering net between this gas generant composition in accordance and the described electric igniter.Described electric igniter is equipped with the electric igniter seat, and this electric igniter seat is the rank type, and is suitable mutually with closing in place of described pyrotechnics gas cylinder.Be equipped with seal ring between described electric igniter and the electric igniter seat.
The utlity model has following technique effect: after described electric igniter receives firing command, in the 2-3 millisecond, light the indoor gas generant composition in accordance of described gas generant composition in accordance, gas generant composition in accordance is burnt rapidly and is produced high pressure gas shock wave and red-hot high pressure gas, after this shock wave and red-hot high pressure gas break through the bottom of described aerogenesis coyote hole, moment punctures described rupture disk again, make hot gas that gas generant composition in accordance burning produces mix with high pressure gas in being fitted in described high-pressure gas bottle in advance, the rupture disk mouth of mixed gas after by explosion be net filtration after filtration, and the miscellaneous gas after the filtration deflation hole on described pyrotechnics gas cylinder again enters air bag.Described buffering net can play buffer action when gas generant composition in accordance is assembled, in order to avoid when assembling squeezes gas generant composition in accordance broken; Simultaneously when storing, Product transport prevents that the phase mutual friction is rocked between the gas generant composition in accordance, has improved security of products.Described filtering net can filter hot gas and the miscellaneous gas that produces, and has less residue or does not have residue to guarantee the gas that gas generator was discharged.Be equipped with seal ring between described electric igniter and the electric igniter seat, compress connection by closing between the two simultaneously, this design can be simplified assembly technology, thereby reduces production costs.Described rupture disk is the design of antiarch shape, and its back is equipped with groove, helps reverse explosion.Described aerogenesis coyote hole taper is closed up and the gas after the gas generant composition in accordance burning can be carried out the adjustment of release direction, thereby helps rapidly rupture disk being broken up.
Description of drawings
Fig. 1 is the structural representation of the utility model automobile side impact protecting safety airbag with hybrid gas generator.
The specific embodiment
Consult accompanying drawing 1; the hybrid gas generator of a kind of automobile side impact protecting safety airbag of the utility model; comprise a high-pressure gas bottle 1; this high-pressure gas bottle 1 is pressed with high pressure gas 2 in advance; described high-pressure gas bottle 1 one ends communicate with aerogenesis apparatus; described aerogenesis apparatus comprises the pyrotechnics gas cylinder 10 of a both ends open; described pyrotechnics gas cylinder 10 is built-in with aerogenesis coyote hole 9; described aerogenesis coyote hole 9 one ends are equipped with electric igniter 8; the tapered closing in of the other end; described taper is equipped with filtering net 3 around closing up, and with described filtering net 3 cooresponding positions, is equipped with deflation hole 11 on the described pyrotechnics gas cylinder 10; one end opening of described pyrotechnics gas cylinder 10 closes up suitable mutually with described taper; this open end is equipped with arch rupture disk 12, and the arc-shaped protrusions part of this arch rupture disk 12 closes up towards described taper, and the back of described arch rupture disk 12 is equipped with groove.This groove has increased area of thrust surface, helps reverse explosion.Described aerogenesis coyote hole 9 is equipped with gas generant composition in accordance 4, is equipped with buffering net 5 between this gas generant composition in accordance 4 and the described electric igniter 8.Described electric igniter 8 is equipped with electric igniter seat 6, this electric igniter seat 6 is the rank type, suitable mutually with described pyrotechnics gas cylinder 10 closing ins place, the port of described pyrotechnics gas cylinder 10 extends internally and is equipped with annular projection, electric igniter seat 6 tops are equipped with columnar projections, form the single order type structure, the two is used, and can play good supporting role.Be equipped with seal ring 7 between described electric igniter 8 and the electric igniter seat 6.13 is end socket.
Gas generant composition in accordance 4 adopts pentaamino tetrazolium series, nitroguanidine series, single base or how basic propellant powder etc., and this gas generant composition in accordance burning velecity is fast, and the gas that burning simultaneously produces meets the requirements.Described buffering net 5 can play buffer action when gas generant composition in accordance 4 assembling, in order to avoid squeeze gas generant composition in accordance 4 broken during assembling; Simultaneously when storing, Product transport prevents that the phase mutual friction is rocked between the gas generant composition in accordance 4, has improved security of products.Described filtering net 3 can filter hot gas and the miscellaneous gas that produces, and has less residue or does not have residue to guarantee the gas that gas generator was discharged.High pressure gas 2 adopt the high pressure inert mixed gas, and this miscellaneous gas is not flammable, and is free from environmental pollution, satisfies environmental demands.Described rupture disk 12 is the design of antiarch shape, and its back is equipped with groove, helps reverse explosion.Described aerogenesis coyote hole 9 tapers are closed up and the gas after the gas generant composition in accordance burning can be carried out the adjustment of release direction, thereby help rapidly rupture disk being broken up.
Claims (5)
1. hybrid gas generator of automobile side impact protecting safety airbag; comprise a high-pressure gas bottle; described high-pressure gas bottle one end communicates with aerogenesis apparatus; described aerogenesis apparatus comprises the pyrotechnics gas cylinder of a both ends open; described pyrotechnics gas cylinder is built-in with the aerogenesis coyote hole; described aerogenesis coyote hole one end is equipped with electric igniter; it is characterized in that the tapered closing in of the described aerogenesis coyote hole other end; around closing up, described taper is equipped with filtering net; with the cooresponding position of described filtering net; be equipped with deflation hole on the described pyrotechnics gas cylinder; one end opening of described pyrotechnics gas cylinder closes up suitable mutually with described taper; this open end is equipped with the arch rupture disk, and the arc-shaped protrusions part of this arch rupture disk closes up towards described taper.
2. the hybrid gas generator of automobile side impact protecting safety airbag according to claim 1 is characterized in that: be equipped with the buffering net between described electric igniter and the gas generant composition in accordance.
3. the hybrid gas generator of automobile side impact protecting safety airbag according to claim 1, it is characterized in that: described electric igniter is equipped with the electric igniter seat, and this electric igniter seat is the rank type, and is suitable mutually with closing in place of described pyrotechnics gas cylinder.
4. the hybrid gas generator of automobile side impact protecting safety airbag according to claim 3 is characterized in that: be equipped with seal ring between described electric igniter and the electric igniter seat.
5. the hybrid gas generator of automobile side impact protecting safety airbag according to claim 1, it is characterized in that: the back of described arch rupture disk is equipped with groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200111528U CN2772902Y (en) | 2005-03-28 | 2005-03-28 | Mixed gas generator of safety gasbag with side bump protection for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200111528U CN2772902Y (en) | 2005-03-28 | 2005-03-28 | Mixed gas generator of safety gasbag with side bump protection for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2772902Y true CN2772902Y (en) | 2006-04-19 |
Family
ID=36708159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200111528U Expired - Lifetime CN2772902Y (en) | 2005-03-28 | 2005-03-28 | Mixed gas generator of safety gasbag with side bump protection for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2772902Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010149080A1 (en) | 2009-06-26 | 2010-12-29 | Byd Company Limited | Hybrid gas generator |
| CN105358508A (en) * | 2013-05-21 | 2016-02-24 | 有限会社三松 | Gas generator having increased combustion rate and combustion gas amount |
| CN110371074A (en) * | 2019-07-01 | 2019-10-25 | 均胜汽车安全系统(湖州)有限公司 | A kind of special combustion chamber of gas generator |
| CN115056743A (en) * | 2022-05-20 | 2022-09-16 | 均胜汽车安全系统(湖州)有限公司 | Column generator inflation inlet and end cap structure |
-
2005
- 2005-03-28 CN CNU2005200111528U patent/CN2772902Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010149080A1 (en) | 2009-06-26 | 2010-12-29 | Byd Company Limited | Hybrid gas generator |
| US8528482B2 (en) | 2009-06-26 | 2013-09-10 | Byd Company Limited | Hybrid gas generator |
| CN105358508A (en) * | 2013-05-21 | 2016-02-24 | 有限会社三松 | Gas generator having increased combustion rate and combustion gas amount |
| CN110371074A (en) * | 2019-07-01 | 2019-10-25 | 均胜汽车安全系统(湖州)有限公司 | A kind of special combustion chamber of gas generator |
| CN110371074B (en) * | 2019-07-01 | 2021-09-24 | 均胜汽车安全系统(湖州)有限公司 | Special combustion chamber for gas generator |
| CN115056743A (en) * | 2022-05-20 | 2022-09-16 | 均胜汽车安全系统(湖州)有限公司 | Column generator inflation inlet and end cap structure |
| CN115056743B (en) * | 2022-05-20 | 2023-10-20 | 均胜汽车安全系统(湖州)有限公司 | Columnar generator inflation inlet and plug structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ORIENTAL YONGJIU SAFE AIRBAG LTD. Free format text: FORMER OWNER: ZHANG GENFA Effective date: 20070907 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070907 Address after: Xinle City, Hebei Province, 050700 South Road No. 8 Patentee after: East Joy Long Motor Airbag Co., Ltd. Address before: 201201 Shanghai Pudong New Area Heqing Industrial Park Kyung Road No. 219 Patentee before: Zhang Genfa |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150328 Granted publication date: 20060419 |