CN203391727U - Air generator for lateral air bag - Google Patents
Air generator for lateral air bag Download PDFInfo
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- CN203391727U CN203391727U CN201320411459.1U CN201320411459U CN203391727U CN 203391727 U CN203391727 U CN 203391727U CN 201320411459 U CN201320411459 U CN 201320411459U CN 203391727 U CN203391727 U CN 203391727U
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- filtering net
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Abstract
The utility model discloses an air generator for a lateral air bag. The air generator comprises a case, an ignition pipe, a starting mix cup, starting mix, an air producing powder accommodating cavity, air producing powder, air bent passage flow-out assembly, a blasting film and an exhaust valve, wherein the front end of the case is provided with the ignition pipe, the back end of the case is provided with a filter net, the blasting film and the exhaust valve, the air producing powder accommodating cavity is arranged in the case, the front part of the air producing powder accommodating cavity is provided with the starting mix cup, the back part of the air producing powder accommodating cavity is provided with the air bent passage flow-out assembly, the starting mix is filled in the starting mix cup, the air producing powder is filled in the air producing powder accommodating cavity, the air producing powder accommodating cavity, the air bent passage flow-out assembly, the blasting film and the exhaust valve are sequentially arranged from the front side to the back side, and air produced in the air producing powder accommodating cavity breaks through the blasting film after flowing out from a bent passage of the air bent passage flow-out assembly, and is exhausted out from a hole formed in the exhaust valve. The air generator has the advantages that the exhaust time and the exhaust path of high-temperature and high-pressure air are increased, the flame ejection condition is eliminated to a great degree, and the air temperature and the speed are respectively lowered and decelerated.
Description
[technical field]
The utility model relates to automobile air-bag system, especially side airbag of automobile gas generator.
[background technology]
Safety air bag is very important safety device on automobile, when automobile has an accident, can effectively reduce the injury of accident to human body, thus protection driver and motroist's life security.
Safety air bag is mainly comprised of parts such as gas generator, combustion chamber, filter/filtering net, starting mix/expansion combustion medicine, gas generant composition in accordance/gas generating agent, igniter/ignition tube, deflation hole, dividing plate, medicine boxs.Gas generator: the parts that produce and discharge gas in automobile air-bag system.Combustion chamber: the cavity volume that loads gas generant composition in accordance (gunpowder) in gas generator.Filter/filtering net: the gas producing is filtered, solid residue is wherein stayed within it, and high-temperature gas is had to certain cooling effect; Conventionally by metallic material, formed.Starting mix/expansion combustion medicine: ignition energy is amplified to a kind of gunpowder that gas generant composition in accordance is ignited smoothly.Gas generant composition in accordance/gas generating agent: main gas provides source, reacts by fast speed combustion chemistry, and solid chemical material is converted into gas.Igniter/ignition tube: a kind of firer's components and parts of lighting fast starting mix by electric signal triggering energy.Deflation hole: the gas that producer produces discharges required gas by deflation hole to safety air bag.Dividing plate: gas generant composition in accordance combustion chamber is divided into the part of different separate space, is with or without through hole on it.Medicine box: for filling part gas generant composition in accordance, that there is independent enclosure space.
Pie or column filtering net that existing side air bag mostly is a kind of compacting or is wound around with its filtration of firework type gas generator, in addition, sometimes do not adopt filter screen, but reach and reduce gas temperature and collect oarse-grained residue by a secondary diffuser (orifice restriction effect).
Conventional simple type filtering net (as: simply pie or the column filtering net of compacting or winding), its filtration channel is shorter, and filter degree of utilization is not high, and high temperature and high pressure gas directly enters air bag through filter, cause delivery curve too fast early stage, air bag module is caused to greater impact.Because its filtration channel is short, for reaching same filter effect, its design for filtration elements weight is large simultaneously, and cost is high.For the similar side air bag firework type gas generator that does not adopt filter screen structure, because powder burning produces a large amount of high temperature and high pressure gas at short notice, producer may produce too much flame, and this flame has the risk of burning gasbag.
[utility model content]
The purpose of this utility model solves the problems of the prior art exactly, propose a kind of side gas generator for air bag, can improve gas filtration path, increase high temperature and high pressure gas and discharge distance and time, eliminate the hidden danger of jet flames, and can simplified structure, reduce costs.
For achieving the above object, the utility model proposes a kind of side gas generator for air bag, comprise shell, ignition tube, starting mix cup, starting mix, gas generant composition in accordance cavity volume, gas generant composition in accordance, gas bend flows out assembly, rupture disk and blow off valve, the front end of described shell is provided with ignition tube, rear end is provided with rupture disk and blow off valve, in described shell, be provided with gas generant composition in accordance cavity volume, the front portion of gas generant composition in accordance cavity volume is provided with starting mix cup, the rear portion of gas generant composition in accordance cavity volume is provided with gas bend and flows out assembly, in described starting mix cup, be filled with starting mix, in gas generant composition in accordance cavity volume, be filled with gas generant composition in accordance, described gas generant composition in accordance cavity volume, gas bend flows out assembly, rupture disk and blow off valve set gradually from front to back, after the bend outflow that the gas producing in gas generant composition in accordance cavity volume flows out assembly through gas bend, break through rupture disk, from blow off valve Shang hole, discharge.
As preferably, described gas bend flows out assembly and comprises the first dividing plate, screen cloth, the first filtering net, second partition and the second filtering net, between described the first dividing plate and second partition, be provided with the first filtering net of hollow, in the first filtering net, be arranged with screen cloth, on the first dividing plate, have some the first through holes with screen cloth corresponding position, on the first dividing plate with the first filtering net not perforate of corresponding position, the side of screen cloth is provided with some the second through holes, on second partition with screen cloth not perforate of corresponding position, on second partition, have some third through-holes with the first filtering net corresponding position, the rear portion of second partition is provided with the second filtering net, the gas producing in described gas generant composition in accordance cavity volume is successively through the first through hole, the second through hole, the first filtering net, third through-hole and the second filtering net.
As preferably, described gas bend flows out assembly and comprises the first dividing plate, screen cloth, the first filtering net and the second filtering net, between described the first dividing plate and the second filtering net, be provided with the first filtering net of hollow, in the first filtering net, be arranged with screen cloth, on the first dividing plate, have some the first through holes with screen cloth corresponding position, on the first dividing plate with the first filtering net not perforate of corresponding position, the side of screen cloth is provided with some the second through holes, the first filtering net and the second filtering net structure that is formed in one, the gas producing in described gas generant composition in accordance cavity volume is successively through the first through hole, the second through hole, the first filtering net and the second filtering net.
As preferably, described starting mix cup is funnel-form starting mix cup, and bottom and the side of funnel-form starting mix cup all have fourth hole.Bottom has increased the area of contact of starting mix and gas generant composition in accordance with the funnelform aerogenesis medicine box of hole (fourth hole), make to pass fire point at gas generant composition in accordance middle part, can light more gas generant composition in accordance simultaneously, and burning more uniformly, to reach side air bag, air bag is reached fast to the time requirement of peak value.
The beneficial effects of the utility model: the utility model is by improving filtration device structure, forming process and knitting forming technique that combined filtering device is wound around, to arrive, change gas filtration path, the bend that a plurality of change gas flows out, increase high temperature and high pressure gas efflux time and distance, eliminate to a great extent the situation of jet flames, reduced gas temperature and speed, arrived the requirement of S shape delivery curve.The utility model is simple in structure, and cost is low, practical.
Feature of the present utility model and advantage will be elaborated by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of a kind of side gas generator for air bag of the utility model.
In figure: 1-ignition tube, 2-ignition tube plastic stent, 3-plastic supporting pieces, 4-starting mix, 5-starting mix cup, 6-gas generant composition in accordance, 7-gas generant composition in accordance cavity volume, 8-screen cloth, 9-second partition, 10-rupture disk, 11-the first dividing plate, 12-the first filtering net, 13-the second filtering net, 14-blow off valve, 15-the first through hole, 16-the second through hole, 17-third through-hole, 18-fourth hole, 19-shell.
[specific embodiment]
Consult Fig. 1, side gas generator for air bag, comprise shell 19, ignition tube 1, starting mix cup 5, starting mix 4, gas generant composition in accordance cavity volume 7, gas generant composition in accordance 6, gas bend flows out assembly, rupture disk 10 and blow off valve 14, the front end of described shell 19 is provided with ignition tube 1, rear end is provided with rupture disk 10 and blow off valve 14, in described shell 19, be provided with gas generant composition in accordance cavity volume 7, the front portion of gas generant composition in accordance cavity volume 7 is provided with starting mix cup 5, the rear portion of gas generant composition in accordance cavity volume 7 is provided with gas bend and flows out assembly, in described starting mix cup 5, be filled with starting mix 4, in gas generant composition in accordance cavity volume 7, be filled with gas generant composition in accordance 6, described gas generant composition in accordance cavity volume 7, gas bend flows out assembly, rupture disk 10 and blow off valve 14 set gradually from front to back, after the bend outflow that the gas of gas generant composition in accordance cavity volume 7 interior generations flows out assembly through gas bend, break through rupture disk 10, from blow off valve 14Shang hole, discharge.
The enforcement of gas bend outflow assembly can be adopted in two ways, a kind of implementation is to comprise the first dividing plate 11, screen cloth 8, the first filtering net 12, second partition 9 and the second filtering net 13, between described the first dividing plate 11 and second partition 9, be provided with the first filtering net 12 of hollow, in the first filtering net 12, be arranged with screen cloth 8, on the first dividing plate 11, have some the first through holes 15 with screen cloth 8 corresponding positions, on the first dividing plate 11 with the first filtering net 12 not perforates of corresponding position, the side of screen cloth 8 is provided with some the second through holes 16, on second partition 9 with screen cloth 8 not perforates of corresponding position, on second partition 9, have some third through-holes 17 with the first filtering net 12 corresponding positions, the rear portion of second partition 9 is provided with the second filtering net 13, the gas of described gas generant composition in accordance cavity volume 7 interior generations is successively through the first through hole 15, the second through hole 16, the first filtering net 12, third through-hole 17 and the second filtering net 13.
The another kind of implementation that gas bend flows out assembly is to comprise the first dividing plate 11, screen cloth 8, the first filtering net 12 and the second filtering net 13, between described the first dividing plate 11 and the second filtering net 13, be provided with the first filtering net 12 of hollow, in the first filtering net 12, be arranged with screen cloth 8, on the first dividing plate 11, have some the first through holes 15 with screen cloth 8 corresponding positions, on the first dividing plate 11 with the first filtering net 12 not perforates of corresponding position, the side of screen cloth 8 is provided with some the second through holes 16, the first filtering net 12 and the second filtering net 13 structure that is formed in one, the gas of described gas generant composition in accordance cavity volume 7 interior generations is successively through the first through hole 15, the second through hole 16, the first filtering net 12 and the second filtering net 13.This structure is canceled second partition 9, adopt the first filtering net 12 and second filtering net 13 of integrative-structure, make the filtering net of a similar cup-shaped hollow, coordinate with screen cloth 8, the first dividing plate 11, and wherein the porose part in the first dividing plate 11 middle parts is removed and screen cloth 8 can be connected as a single entity and changes similar careless hat-shaped structure into, but gas filtration path can not change, and plays equally good flame arrest, reduction of speed, cooling filter effect.
Described starting mix cup 5 is funnel-form starting mix cup 5, and bottom and the side of funnel-form starting mix cup 5 all have fourth hole 18.Funnel-form starting mix cup 5, plays cumulative action, and porose insertion gas generant composition in accordance 6 middle parts, bottom of funnel, plays the effect of transferring energy that can be good, can make gas generant composition in accordance 6 light in shorter time, rather than be burned to the other end from one end of producer.Starting mix cup 5 bottoms have increased the area of contact of starting mix 4 with gas generant composition in accordance 6 with funnelform gas generant composition in accordance 6 boxes of hole (fourth hole 18), make to pass fire point at gas generant composition in accordance 6 middle parts, can light more gas generant composition in accordance 6 simultaneously, and burning, reaches the time requirement of peak value fast to reach side air bag to air bag more uniformly.
Ignition tube plastic stent 2, plastic supporting pieces 3 are injection mo(u)lding structure, can make after module and housing assembling again, coordinate, or be directly injection molded into integral type with spinning, not only simplify the structure but also reduced cost.
The starting mix 4 that the utility model ignites in funnel-form starting mix cup 5 by the igniting of ignition tube 1, after the violent burning of starting mix 4, discharge after the first pressurize cumulative of short duration in funnel cup of a large amount of energy, hole through hopper walls and bottom is discharged in gas generant composition in accordance cavity volume 7, gas generant composition in accordance 6 is lighted rapidly in high temperature and high pressure environment, larger energy and gas are released, arrow is gas discharge path as shown, gas is by porose in the middle of first and the first dividing plate 11 of edge atresia, in the middle of entering, the tubbiness visual filter effect of this inner chamber of screen cloth 8(with holes is being filled in the filtering net of compression forming), then gas enters the first filtering net 12 by Tong Bishang hole, the first filtering net 12 is by the compressing or Wrapping formed filtering net of iron wire braiding, last middle without the porose second partition 9 of bore edges in process, finally by crossing the second filtering net 13, the second filtering net 13 is by the compressing cake filtration net of iron wire, breaking through afterwards rupture disk 10 discharges from blow off valve 14Shang hole.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, any scheme after the utility model simple transformation is all belonged to protection domain of the present utility model.
Claims (4)
1. a side gas generator for air bag, it is characterized in that: comprise shell, ignition tube, starting mix cup, starting mix, gas generant composition in accordance cavity volume, gas generant composition in accordance, gas bend flows out assembly, rupture disk and blow off valve, the front end of described shell is provided with ignition tube, rear end is provided with rupture disk and blow off valve, in described shell, be provided with gas generant composition in accordance cavity volume, the front portion of gas generant composition in accordance cavity volume is provided with starting mix cup, the rear portion of gas generant composition in accordance cavity volume is provided with gas bend and flows out assembly, in described starting mix cup, be filled with starting mix, in gas generant composition in accordance cavity volume, be filled with gas generant composition in accordance, described gas generant composition in accordance cavity volume, gas bend flows out assembly, rupture disk and blow off valve set gradually from front to back, after the bend outflow that the gas producing in gas generant composition in accordance cavity volume flows out assembly through gas bend, break through rupture disk, from blow off valve Shang hole, discharge.
2. a kind of side gas generator for air bag as claimed in claim 1, it is characterized in that: described gas bend flows out assembly and comprises the first dividing plate, screen cloth, the first filtering net, second partition and the second filtering net, between described the first dividing plate and second partition, be provided with the first filtering net of hollow, in the first filtering net, be arranged with screen cloth, on the first dividing plate, have some the first through holes with screen cloth corresponding position, on the first dividing plate with the first filtering net not perforate of corresponding position, the side of screen cloth is provided with some the second through holes, on second partition with screen cloth not perforate of corresponding position, on second partition, have some third through-holes with the first filtering net corresponding position, the rear portion of second partition is provided with the second filtering net, the gas producing in described gas generant composition in accordance cavity volume is successively through the first through hole, the second through hole, the first filtering net, third through-hole and the second filtering net.
3. a kind of side gas generator for air bag as claimed in claim 1, it is characterized in that: described gas bend flows out assembly and comprises the first dividing plate, screen cloth, the first filtering net and the second filtering net, between described the first dividing plate and the second filtering net, be provided with the first filtering net of hollow, in the first filtering net, be arranged with screen cloth, on the first dividing plate, have some the first through holes with screen cloth corresponding position, on the first dividing plate with the first filtering net not perforate of corresponding position, the side of screen cloth is provided with some the second through holes, the first filtering net and the second filtering net structure that is formed in one, the gas producing in described gas generant composition in accordance cavity volume is successively through the first through hole, the second through hole, the first filtering net and the second filtering net.
4. a kind of side gas generator for air bag as claimed in claim 1, is characterized in that: described starting mix cup is funnel-form starting mix cup, and bottom and the side of funnel-form starting mix cup all have fourth hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411459.1U CN203391727U (en) | 2013-07-10 | 2013-07-10 | Air generator for lateral air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411459.1U CN203391727U (en) | 2013-07-10 | 2013-07-10 | Air generator for lateral air bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203391727U true CN203391727U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320411459.1U Expired - Lifetime CN203391727U (en) | 2013-07-10 | 2013-07-10 | Air generator for lateral air bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203391727U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196960A (en) * | 2015-08-29 | 2015-12-30 | 锦州锦恒安全装置有限公司 | Small-scale firework type gas generator of side airbag |
| CN105564364A (en) * | 2016-01-11 | 2016-05-11 | 淮阴工学院 | Passive protection device for vehicle collision |
| CN105667446A (en) * | 2014-12-05 | 2016-06-15 | 天合安全气囊系统有限责任公司 | Combustion chamber comprising opening device, hybrid inflator and method of discharging fluid |
| CN106394478A (en) * | 2015-07-30 | 2017-02-15 | 天合安全气囊系统有限责任公司 | Inflator, especially for a vehicle safety system, airbag module, vehicle safety system and method of manufacturing and operating an inflator |
| CN109664857A (en) * | 2018-12-26 | 2019-04-23 | 宁波保税区艾尔希汽车有限公司 | A kind of hybrid gas generator for side air bag |
| DE102018112010A1 (en) * | 2018-05-18 | 2019-11-21 | Trw Airbag Systems Gmbh | FUEL CAGE FOR A GAS GENERATOR, GAS GENERATOR WITH SUCH A FUEL CAGE, OPERATING METHOD AND METHOD FOR LEADING A CHOCOLATE OF A GAS GENERATOR |
| CN110789489A (en) * | 2019-11-22 | 2020-02-14 | 延锋汽车智能安全系统有限责任公司 | Automobile safety air bag and gas generator and manufacturing method thereof |
| CN114572148A (en) * | 2022-02-24 | 2022-06-03 | 均胜汽车安全系统（长兴）有限公司 | Hybrid generator capable of reducing gas temperature |
-
2013
- 2013-07-10 CN CN201320411459.1U patent/CN203391727U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667446A (en) * | 2014-12-05 | 2016-06-15 | 天合安全气囊系统有限责任公司 | Combustion chamber comprising opening device, hybrid inflator and method of discharging fluid |
| CN105667446B (en) * | 2014-12-05 | 2019-06-28 | 天合安全气囊系统有限责任公司 | The method of combustion chamber, hybrid inflator and exhaust fluid including opening device |
| CN106394478A (en) * | 2015-07-30 | 2017-02-15 | 天合安全气囊系统有限责任公司 | Inflator, especially for a vehicle safety system, airbag module, vehicle safety system and method of manufacturing and operating an inflator |
| CN105196960A (en) * | 2015-08-29 | 2015-12-30 | 锦州锦恒安全装置有限公司 | Small-scale firework type gas generator of side airbag |
| CN105196960B (en) * | 2015-08-29 | 2019-04-05 | 锦州锦恒安全装置有限公司 | Small-sized pyrotechnic side air bag gas generator |
| CN105564364A (en) * | 2016-01-11 | 2016-05-11 | 淮阴工学院 | Passive protection device for vehicle collision |
| DE102018112010A1 (en) * | 2018-05-18 | 2019-11-21 | Trw Airbag Systems Gmbh | FUEL CAGE FOR A GAS GENERATOR, GAS GENERATOR WITH SUCH A FUEL CAGE, OPERATING METHOD AND METHOD FOR LEADING A CHOCOLATE OF A GAS GENERATOR |
| US11077820B2 (en) | 2018-05-18 | 2021-08-03 | Trw Airbag Systems Gmbh | Propellant cage for an inflator, inflator comprising such propellant cage operating method and method of guiding a shock wave of an inflator |
| CN109664857A (en) * | 2018-12-26 | 2019-04-23 | 宁波保税区艾尔希汽车有限公司 | A kind of hybrid gas generator for side air bag |
| CN109664857B (en) * | 2018-12-26 | 2023-12-15 | 宁波保税区艾尔希汽车有限公司 | Mixed gas generator for side air bag |
| CN110789489A (en) * | 2019-11-22 | 2020-02-14 | 延锋汽车智能安全系统有限责任公司 | Automobile safety air bag and gas generator and manufacturing method thereof |
| CN114572148A (en) * | 2022-02-24 | 2022-06-03 | 均胜汽车安全系统（长兴）有限公司 | Hybrid generator capable of reducing gas temperature |
| CN114572148B (en) * | 2022-02-24 | 2023-03-28 | 均胜汽车安全系统（长兴）有限公司 | Hybrid generator capable of reducing gas temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313100 Houshan Natural Village, Heping Town, Changxing County, Huzhou City, Zhejiang Province Patentee after: Junsheng Automobile Safety System (Huzhou) Co.,Ltd. Address before: 313100 Houshan Natural Village, Heping Town, Changxing County, Huzhou City, Zhejiang Province Patentee before: KEY SAFETY SYSTEMS (HUZHOU) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term |