CN205615465U - Safe type gas generator - Google Patents
Safe type gas generator Download PDFInfo
- Publication number
- CN205615465U CN205615465U CN201620344745.4U CN201620344745U CN205615465U CN 205615465 U CN205615465 U CN 205615465U CN 201620344745 U CN201620344745 U CN 201620344745U CN 205615465 U CN205615465 U CN 205615465U
- Authority
- CN
- China
- Prior art keywords
- separation sleeve
- combustion
- gas
- end cap
- gas generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model relates to a gas generator technical field discloses a safe type gas generator, which comprises a housing and an end cap, the center of end cover is equipped with squib holder, be equipped with ignition tube in the squib holder, squib holder the inner is connected with combustion -supporting pipe, combustion -supportingly intraductal be equipped with combustion -supporting medicine, the inboard of end cover is equipped with the interior separation sleeve of opening towards the casing bottom, the open end of interior separation sleeve is equipped with the filter screen, the filter screen cover is established and is inclined at combustion -supporting outside of tubes, form the combustion chamber between interior separation sleeve and the combustion -supporting pipe, be equipped with in the combustion chamber and produce the gas medicine, the bottom of casing is equipped with the outer separation sleeve of opening towards the end cover, be equipped with the cooling filter screen between outer separation sleeve and the interior separation sleeve, the lateral wall of combustion -supporting pipe is equipped with the inlet port that communicates with the combustion chamber, the inlet port outside is equipped with the aluminium foil, the side of casing is equipped with the exhaust hole, the inner in exhaust hole is passed through the aluminium foil and is sealed. Produce the dual cooling of high -temperature gas process that the burning of gas medicine formed, the cooling effect is good, and the gas temperature who finally gets into the gasbag obviously reduces, can not damage the gasbag.
Description
Technical field
This utility model relates to gas generator technology field, particularly relates to a kind of safety gas generator.
Background technology
Air bag is very important safety device on automobile, and when automobile has an accident, gas generator is to airbag inflated, it is possible to effectively reduces the accident injury to human body, thus protects the life security of driver and motroist.Common gas generator principle is all igniter (ignitron) igniting, and combustion-supporting medicine burns and gas generant composition in accordance of igniting, and produces a large amount of gas after gas generant composition in accordance burning, thus to airbag aeration.But produce amount of heat during gas generant composition in accordance burning, the gas temperature of entrance air bag is the highest can damage air bag, although all arranging filter screen in the most a lot of gas generator, filter screen has certain cooling effect to high-temperature gas, but yet suffers from damaging the phenomenon of air bag because gas temperature is the highest.
Such as Chinese Patent Application No. is CN201520453989.1, filing date on June 29th, 2015, and open a kind of automobile safety air bag gas generator, including shell, gas generant composition in accordance, ignitron, fixture and automatic ignition medicine；Enclosure forms airtight combustor；Gas generant composition in accordance and ignitron may be contained within the combustor of shell；Fixture is positioned at described combustor, and is fixed on outer casing inner wall；Fixture is internally formed lock chamber, and fixture has multiple connection lock chamber and the mesh of combustor；Automatic ignition medicine is arranged at the interior lock chamber of described fixture.The gas temperature that gas generant composition in accordance burning in this kind of gas generator is formed is higher, and gas is easily damaged air bag after entering air bag.
Utility model content
This utility model is in order to solve in prior art the higher problem being easily damaged air bag of expellant gas temperature in gas generator, it is provided that a kind of to gas good cooling results, will not damage the safety gas generator of air bag.
To achieve these goals, this utility model adopts the following technical scheme that
A kind of safety gas generator, including housing and end cap, the center of described end cap is provided with igniting base, it is provided with ignitron in igniting base, described igniting base the inner connects combustion tube, combustion-supporting medicine it is provided with in combustion tube, the inner side of described end cap is provided with the opening interior separation sleeve towards housing bottom, the opening of described interior separation sleeve is provided with drainage screen, described filtration net cover is located at outside combustion tube, combustor is formed between described interior separation sleeve and combustion tube, it is provided with gas generant composition in accordance in described combustor, the bottom of described housing is provided with the opening outer separation sleeve towards end cap, it is provided with cooling filter screen between described outer separation sleeve and interior separation sleeve, the sidewall of described combustion tube is provided with the air inlet with combustion chamber, aluminum paper tinsel it is provided with outside air inlet, the side of described housing is provided with steam vent, the inner of steam vent is closed by aluminium foil.
Ignitron is lighted a fire, combustion-supporting guiding drug fires, and in entering combustor, gas generant composition in accordance is ignited after breaking through aluminium foil, and gas generant composition in accordance produces a large amount of high-temperature gas after igniting, high-temperature gas cools down through supercooling filter screen through filter screen filtration again, and gas finally breaks through the aluminium foil at steam vent and enters in air bag；The gas that gas generant composition in accordance burning produces, through drainage screen, cooling filter screen double filtration, effectively filters aerogenesis medicinal residues, has been also carried out twice cooling simultaneously, and the gas temperature finally entering air bag substantially reduces, and will not damage air bag.
As preferably, forming annular gap between described outer separation sleeve and inner walls, described steam vent connects with annular gap, and described steam vent is positioned at housing bottom place end.Gas route of process when steam vent is discharged that gas generant composition in accordance produces is S-type, and route bends, gas good cooling results.
As preferably, being welded to connect between described end cap and shell nozzle end, the edge of described end cap stretches out formation flange.
As preferably, in described combustor, it is provided with desiccant.Desiccant is used for keeping gas generant composition in accordance to be dried.
In this utility model, the high-temperature gas that gas generant composition in accordance burning is formed substantially reduces through dual-cooled, good cooling results, the gas temperature eventually entering into air bag, will not damage air bag.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
In figure: housing 1, end cap 2, flange 3, igniting base 4, ignitron 5, combustion tube 6, combustion-supporting medicine 7, interior separation sleeve 8, drainage screen 9, combustor 10, gas generant composition in accordance 11, outer separation sleeve 12, cooling filter screen 13, air inlet 14, aluminium foil 15, annular gap 16, desiccant 17, steam vent 18.
Detailed description of the invention
With detailed description of the invention, this utility model is further described below in conjunction with the accompanying drawings:
A kind of safety gas generator as shown in Figure 1, including housing 1 and end cap 2, is welded to connect between end cap and shell nozzle end, and the edge of institute's end cap stretches out and forms flange 3；nullThe center of end cap 2 is provided with igniting base 4，It is provided with ignitron 5 in igniting base，Igniting base the inner connects combustion tube 6，Combustion-supporting medicine 7 it is provided with in combustion tube，The inner side of end cap 2 is provided with the opening interior separation sleeve 8 towards housing bottom，The opening of interior separation sleeve 8 is provided with drainage screen 9，Drainage screen 9 is set in outside combustion tube 7，Combustor 10 is formed between interior separation sleeve 8 and combustion tube 6，Gas generant composition in accordance 11 and desiccant 17 it is provided with in combustor，The bottom of housing 1 is provided with the opening outer separation sleeve 12 towards end cap，Cooling filter screen 13 it is provided with between outer separation sleeve and interior separation sleeve，The sidewall of combustion tube is provided with the air inlet 14 with combustion chamber，Aluminium foil 15 it is provided with outside air inlet，Annular gap 16 is formed between outer separation sleeve 12 and inner walls，The side of housing is provided with steam vent 18，Steam vent is positioned at housing bottom place end，Steam vent connects with annular gap，The inner of steam vent is closed by aluminium foil.
In conjunction with accompanying drawing, principle of the present utility model is as follows: ignitron is lighted a fire, combustion-supporting guiding drug fires, in entering combustor after breaking through aluminium foil, gas generant composition in accordance is ignited, gas generant composition in accordance produces a large amount of high-temperature gas after igniting, high-temperature gas cools down through supercooling filter screen through filter screen filtration again, and gas finally breaks through the aluminium foil at steam vent and enters in air bag；The gas that gas generant composition in accordance burning produces, through drainage screen, cooling filter screen double filtration, effectively filters aerogenesis medicinal residues, has been also carried out twice cooling simultaneously, and the gas temperature finally entering air bag substantially reduces, and will not damage air bag.
Claims (4)
- null1. a safety gas generator，Including housing and end cap，The center of described end cap is provided with igniting base，It is provided with ignitron in igniting base，Described igniting base the inner connects combustion tube，Combustion-supporting medicine it is provided with in combustion tube，It is characterized in that，The inner side of described end cap is provided with the opening interior separation sleeve towards housing bottom，The opening of described interior separation sleeve is provided with drainage screen，Described filtration net cover is located at outside combustion tube，Combustor is formed between described interior separation sleeve and combustion tube，It is provided with gas generant composition in accordance in described combustor，The bottom of described housing is provided with the opening outer separation sleeve towards end cap，It is provided with cooling filter screen between described outer separation sleeve and interior separation sleeve，The sidewall of described combustion tube is provided with the air inlet with combustion chamber，Aluminium foil it is provided with outside air inlet，The side of described housing is provided with steam vent，The inner of steam vent is closed by aluminium foil.
- A kind of safety gas generator the most according to claim 1, is characterized in that, forms annular gap between described outer separation sleeve and inner walls, and described steam vent connects with annular gap, and described steam vent is positioned at housing bottom place end.
- A kind of safety gas generator the most according to claim 1, is characterized in that, be welded to connect between described end cap and shell nozzle end, and the edge of described end cap stretches out formation flange.
- 4., according to a kind of safety gas generator described in claim 1 or 2 or 3, it is characterized in that, in described combustor, be provided with desiccant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620344745.4U CN205615465U (en) | 2016-04-24 | 2016-04-24 | Safe type gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620344745.4U CN205615465U (en) | 2016-04-24 | 2016-04-24 | Safe type gas generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205615465U true CN205615465U (en) | 2016-10-05 |
Family
ID=57028140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620344745.4U Active CN205615465U (en) | 2016-04-24 | 2016-04-24 | Safe type gas generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205615465U (en) |
-
2016
- 2016-04-24 CN CN201620344745.4U patent/CN205615465U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205615467U (en) | Knee protection gas generator for air bag | |
| CN206954171U (en) | A kind of small-sized pyrotechnic airbag gas generator of column | |
| CN105644491B (en) | Inflatable gas generator is ignited in a kind of secondary delay | |
| JPH0737356B2 (en) | Gas generator for air back deployment | |
| US7059633B2 (en) | Hybrid gas inflator | |
| TWI588045B (en) | Dual stage hybrid gas generator and triggering method thereof | |
| CN107264463A (en) | A kind of columnar gas generator architecture | |
| CN109664857B (en) | Mixed gas generator for side air bag | |
| CN205615470U (en) | High -efficient cooled gas generator | |
| CN205615465U (en) | Safe type gas generator | |
| CN205924775U (en) | Engine compartment suspension type dry powder extinguishing device | |
| CN210554658U (en) | Gas generator for safety air bag | |
| CN105196960B (en) | Small-sized pyrotechnic side air bag gas generator | |
| CN106110540A (en) | Enging cabin hanged powder extinguishing equipment | |
| CN205615469U (en) | High pressure gas mixture style gas generator | |
| CN205615464U (en) | Two -way formula gas generator that ignites | |
| CN101746344A (en) | Twin-stage type gas generator | |
| CN206954172U (en) | One kind exhaust stable type gas generator structure | |
| CN104154825B (en) | A kind of bait gas generator | |
| CN207466594U (en) | A kind of buffering filtering type gas generator | |
| CN201161579Y (en) | Gas generator | |
| CN204845851U (en) | Small -size firework formula side gasbag gas generator | |
| CN205615468U (en) | Buffering shock attenuation formula gas generator | |
| CN207466596U (en) | A kind of lightweight ignition type gas generator | |
| CN105818779A (en) | Intelligent gas generation device special for automobile safety air bag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 313104 Changxing County Agricultural Institute, Zhejiang Patentee after: Jun Sheng automotive safety system (Changxin) Co., Ltd. Address before: 313104 Changxing County Agricultural Institute, Changxing County City, Zhejiang Patentee before: Gao Tian (Changxin) automotive safety equipment Co., Ltd. |
|
| CP03 | Change of name, title or address |