CN203681474U - Firework-like gas generator provided with powder box and applied to supplementary restraint system - Google Patents
Firework-like gas generator provided with powder box and applied to supplementary restraint system Download PDFInfo
- Publication number
- CN203681474U CN203681474U CN201420022575.9U CN201420022575U CN203681474U CN 203681474 U CN203681474 U CN 203681474U CN 201420022575 U CN201420022575 U CN 201420022575U CN 203681474 U CN203681474 U CN 203681474U
- Authority
- CN
- China
- Prior art keywords
- medicine box
- shell structure
- dividing plate
- container
- 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.)
- Expired - Lifetime
Links
- 239000000843 powder Substances 0.000 title abstract 9
- 239000000203 mixture Substances 0.000 claims abstract description 59
- 239000003814 drug Substances 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 11
- 239000005030 aluminium foil Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000005192 partition Methods 0.000 abstract 5
- 239000007789 gas Substances 0.000 description 73
- 238000002485 combustion reaction Methods 0.000 description 20
- 239000007787 solid Substances 0.000 description 4
- 229940079593 drug Drugs 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000003721 gunpowder Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Air Bags (AREA)
Abstract
The utility model discloses a firework-like gas generator provided with a powder box and applied to a supplementary restraint system. The firework-like gas generator comprises a lower shell structure, an upper shell structure, an ignitron container, a starting mix container, a filter, a partition board, an electric ignitron and the powder box. The starting mix container is installed in the lower shell structure. The ignitron container is installed in the starting mix container. An end port of the ignitron container is connected to the lower shell structure. The electric ignitron is installed in the ignitron container. Starting mix is contained in the starting mix container. The starting mix container is provided with a plurality of first exhaust ports. The closed powder box is arranged in the lower shell structure. The lower shell structure is filled with first gas generation powder. The powder box is filled with second gas generation powder. The partition board is installed in the upper shell structure. The filter is located on the upper portion of the partition board. The first gas generation powder is located on the lower portion of the partition board. The partition board is provided with a plurality of second exhaust ports. The upper shell structure is provided with third exhaust ports. According to the firework-like gas generator provided with the powder box and applied to the supplementary restraint system, the internal pressure is reduced, the rate of curve of the firework-like PAB gas generator is lowered, and smooth unfolding of a security module is facilitated.
Description
[technical field]
The utility model relates to automobile air-bag system, especially pyrotechnic airbag gas generator.
[background technology]
Safety air bag is very important safety device on automobile, in the time that 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 made up 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, medicine boxs.Air-cushion inflator: 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 therein, and high-temperature gas is had to certain cooling effect; Conventionally formed by metallic material.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.Medicine box: for filling part gas generant composition in accordance, that there is independent enclosure space.
At present pyrotechnic PAB gas generator only has single combustion chamber, and in the time of ignition trigger, moment produces very high interior pressure, and rate of curve is very high, is unfavorable for that the triumph of module launches.
[utility model content]
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of band medicine box pyrotechnic airbag gas generator, can reduce the slope of pyrotechnic PAB gas generator, is conducive to the smooth expansion of module.
For achieving the above object, the utility model proposes a kind of band medicine box pyrotechnic airbag gas generator, comprise lower shell structure, upper case structure, ignition tube container, starting mix container, filter, dividing plate, squib, medicine box, described lower shell structure coordinates formation closed cavity with upper case structure, in lower shell structure, starting mix container is installed, ignition tube container is installed in starting mix container, the port of ignition tube container is connected on lower shell structure, in ignition tube container, squib is installed, in starting mix container, starting mix is housed, on starting mix container, have some first row gas ports, in lower shell structure, be provided with the medicine box of sealing, in lower shell structure, be filled with the first gas generant composition in accordance, in medicine box, be filled with the second gas generant composition in accordance, dividing plate is installed in upper case structure, described filter bits is in the top of dividing plate, the first gas generant composition in accordance is positioned at the bottom of dividing plate, on dividing plate, have some second row gas ports, on upper case structure, have the 3rd exhausr port.
As preferably, described dividing plate is provided with some weak points, and the thickness of described weak point is less than the thickness of dividing plate.
As preferably, 1/4～1/5 of the thickness that the thickness of described weak point is dividing plate.
As preferably, the second row gas port on described dividing plate comprises nine macropores and four apertures; It is circle-shaped that nine macropores are arranged in, and one of them macropore is the center of circle, and all the other eight macropores distribute along even circumferential; Four apertures are distributed in circumference.
As preferably, described medicine box is plastic material or the carbon steel material readily conducting heat.
As preferably, described medicine box is made up of box body and upper cover, and upper cover and box body carry out flush fit sealing, and described flush fit is sealed under certain External Force Acting and can opens.
As preferably, described first row gas port is provided with the first aluminium foil, and second row gas port is provided with the second aluminium foil.
The beneficial effects of the utility model: the utility model adopts medicine box to be isolated into two combustion chambers, has the first combustion chamber of ignition device first to burn, then makes flame heat energy spread to the second combustion chamber.In reducing, press, reduce the rate of curve of pyrotechnic PAB gas generator, be conducive to security module and launch smoothly.
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 a kind of structural representation with medicine box pyrotechnic airbag gas generator of the utility model;
Fig. 2 is a kind of gas flow schematic diagram with medicine box pyrotechnic airbag gas generator of the utility model;
Fig. 3 is the structural representation of the utility model median septum;
Fig. 4 is the Tank comparison diagram of common gases producer and gas generator of the present invention.
In figure: shell structure, 8-medicine box, 9-the first gas generant composition in accordance, 10-the second gas generant composition in accordance, 11-dividing plate, 12-filter, 13-upper case structure, 14-second row gas port, 15-the second aluminium foil, 16-starting mix, 17-weak point, 18-macropore, 19-aperture under 1-the 3rd exhausr port, 2-the first aluminium foil, 3-first row gas port, 4-starting mix container, 5-ignition tube container, 6-squib, 7-.
[specific embodiment]
Consult Fig. 1,2, band medicine box pyrotechnic airbag gas generator, comprise lower shell structure 7, upper case structure 13, ignition tube container 5, starting mix container 4, filter 12, dividing plate 11, squib 6, medicine box 8, lower shell structure 7 is connected by laser beam welding with upper case structure 13, dividing plate 11 is connected by laser beam welding with upper case structure 13, lower shell structure 7 is connected by laser welding with ignition tube container 5, ignition tube container 5 and starting mix container 4 are connected by closing up, and squib 6 and ignition tube container 5 are connected by closing up.Described lower shell structure 7 coordinates formation closed cavity with upper case structure 13, in lower shell structure 7, starting mix container 4 is installed, ignition tube container 5 is installed in starting mix container 4, the port of ignition tube container 5 is connected on lower shell structure 7, squib 6 is installed in ignition tube container 5, starting mix 16 is housed in starting mix container 4, on starting mix container 4, have some first row gas ports 3, in lower shell structure 7, be provided with the medicine box 8 of sealing, in lower shell structure 7, be filled with the first gas generant composition in accordance 9, in medicine box 8, be filled with the second gas generant composition in accordance 10, dividing plate 11 is installed in upper case structure 13, described filter 12 is positioned at the top of dividing plate 11, the first gas generant composition in accordance 9 is positioned at the bottom of dividing plate 11, on dividing plate 11, have some second row gas ports 14, on upper case structure 13, have the 3rd exhausr port 1.The topological design of gas generator medicine box points of engagement fire tube container 5 bias, filter.Medicine box uses injected plastics material and injection point fire tube container 5 as a whole or carbon steel materials.In dividing plate 11, deflation hole coordinates with large aperture, can select 9 macropores and 4 apertures, the mode that the deflation hole of dividing plate 11 adopts large and small hole to coordinate, and large and small hole dimension and quantity can rationally be adjusted according to Tank performance, and sealed material is aluminium film or steel membrane.The thickness that is the weak point 17 of circle distribution on dividing plate 11 be dividing plate 11 thickness 1/4～1/5, this thickness by low temperature press and high temperature internal pressure poor consider draw.
Concrete action principle: electric current is inputted to squib 6, thereby excite squib 6.Discharge flame by squib 6, the starting mix 16 igniting in starting mix container 4.Then starting mix 16 takes fire, and discharges gas and the flame of high temperature, breaks up the first aluminium foil 2, diffuses to gas generant composition in accordance storehouse, thereby the first gas generant composition in accordance 9 is taken fire by first row gas port 3.The first gas generant composition in accordance 9 is burnt, and chemical reaction occurs, and self solid chemicals is converted into gas, chemical power and solid residue.Reaction starts, and gas is put aside in combustion chamber, in the time that interior pressure reaches certain value, breaks up the second aluminium foil 15, discharges gas generant composition in accordance storehouse by second row gas port 14.Simultaneously gas generator has larger gap because of the pressure reduction in high temperature and low-temperature condition lower chamber, and when low temperature, the weak point 17 of dividing plate 11 is broken, and high temperature breaks.Under the condition of high temperature, gas breaks through after weak point 17 through filter 12 filtration residues and reduces after gas temperature, by the 3rd exhausr port 1 Exhaust Gas producer.Meanwhile, medicine box 8 materials are conducted heat the second gas generant composition in accordance 10 are lighted, and the gas that the second gas generant composition in accordance 10 produces breaks through the flush fit device of medicine box 8, enters gas generant composition in accordance storehouse, by second row gas port 14, filter 12 and the 3rd exhausr port 1 Exhaust Gas producer.
Gas generator of the present utility model adopts medicine box to be separated into 2 independently combustion chambers, the first combustion chamber and the second combustion chamber.When in ignition process, there is the first combustion chamber of ignition device first to light a fire and cause gas generant composition in accordance burning.The heat being produced by the first combustion chamber again conducts to the second combustion chamber by the material of the second combustion chamber (being medicine box inner chamber).After a period of time, the gunpowder in the second combustion chamber is heated and reaches a little quick-fried temperature, produces expanding gas.By analyzing inner pressure curve or external pressure single order differential curve, there is the gas generant composition in accordance in the first combustion chamber of ignition device can produce the first peak point, the gas generant composition in accordance in medicine box can produce the second peak point.By adjusting material, thickness and the structure of dose, Types of Medicine and medicine box of first and second combustion chamber, can obtain the tank curve of desirable low slope, high output, launch smoothly thereby be conducive to security module.Consult Fig. 4, in Fig. 4, y1 is the Tank curve of common gases producer, and y2 is the Tank curve of the utility model gas generator, after the utility model improves, can obtain the tank curve of desirable low slope, high output.
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 (7)
1. a band medicine box pyrotechnic airbag gas generator, it is characterized in that: comprise lower shell structure (7), upper case structure (13), ignition tube container (5), starting mix container (4), filter (12), dividing plate (11), squib (6), medicine box (8), described lower shell structure (7) coordinates formation closed cavity with upper case structure (13), starting mix container (4) is installed in lower shell structure (7), ignition tube container (5) is installed in starting mix container (4), the port of ignition tube container (5) is connected on lower shell structure (7), squib (6) is installed in ignition tube container (5), starting mix (16) is housed in starting mix container (4), on starting mix container (4), have some first row gas ports (3), in lower shell structure (7), be provided with the medicine box (8) of sealing, in lower shell structure (7), be filled with the first gas generant composition in accordance (9), in medicine box (8), be filled with the second gas generant composition in accordance (10), dividing plate (11) is installed in upper case structure (13), described filter (12) is positioned at the top of dividing plate (11), the first gas generant composition in accordance (9) is positioned at the bottom of dividing plate (11), on dividing plate (11), have some second row gas ports (14), on upper case structure (13), have the 3rd exhausr port (1).
2. a kind of band medicine box pyrotechnic airbag gas generator as claimed in claim 1, is characterized in that: described dividing plate (11) is provided with some weak points (17), and the thickness of described weak point (17) is less than the thickness of dividing plate (11).
3. a kind of band medicine box pyrotechnic airbag gas generator as claimed in claim 2, is characterized in that: the thickness of described weak point (17) be dividing plate (11) thickness 1/4～1/5.
4. a kind of band medicine box pyrotechnic airbag gas generator as claimed in claim 1, is characterized in that: the second row gas port (14) on described dividing plate (11) comprises nine macropores (18) and four apertures (19); Nine macropores (18) are arranged in circle-shaped, and one of them macropore (18) is the center of circle, and all the other eight macropores (18) distribute along even circumferential; Four apertures (19) are distributed in circumference.
5. a kind of band medicine box pyrotechnic airbag gas generator as claimed in claim 1, is characterized in that: plastic material or the carbon steel material of described medicine box (8) for readily conducting heat.
6. a kind of band medicine box pyrotechnic airbag gas generator as claimed in claim 1, it is characterized in that: described medicine box (8) is made up of box body and upper cover, upper cover and box body carry out flush fit sealing, and described flush fit is sealed under certain External Force Acting and can opens.
7. the one band medicine box pyrotechnic airbag gas generator as described in any one in claim 1 to 6, is characterized in that: described first row gas port (3) is provided with the first aluminium foil (2), and second row gas port (14) is provided with the second aluminium foil (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420022575.9U CN203681474U (en) | 2014-01-14 | 2014-01-14 | Firework-like gas generator provided with powder box and applied to supplementary restraint system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420022575.9U CN203681474U (en) | 2014-01-14 | 2014-01-14 | Firework-like gas generator provided with powder box and applied to supplementary restraint system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203681474U true CN203681474U (en) | 2014-07-02 |
Family
ID=51003416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420022575.9U Expired - Lifetime CN203681474U (en) | 2014-01-14 | 2014-01-14 | Firework-like gas generator provided with powder box and applied to supplementary restraint system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203681474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109416235A (en) * | 2016-06-29 | 2019-03-01 | 奥托立夫开发公司 | Gas generator |
| JP2022099202A (en) * | 2020-12-22 | 2022-07-04 | 日本化薬株式会社 | Gas generator |
-
2014
- 2014-01-14 CN CN201420022575.9U patent/CN203681474U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109416235A (en) * | 2016-06-29 | 2019-03-01 | 奥托立夫开发公司 | Gas generator |
| JP2022099202A (en) * | 2020-12-22 | 2022-07-04 | 日本化薬株式会社 | Gas generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102996284B (en) | Solid-liquid rocket engine annular igniter suitable for head jet of hydrogen peroxide | |
| CN105644491B (en) | Inflatable gas generator is ignited in a kind of secondary delay | |
| CN102292244B (en) | Gas generator for airbag device | |
| CN101970265A (en) | Gas generator for inflating a gas bag of a vehicle occupant restraint system and method of inflating a gas bag | |
| SE8902672D0 (en) | GAS GENERATOR FOR FILLING OF A LINER VEHICLE DEDICATED GAS SHOULDER TYPE PROTECTION | |
| PL332304A1 (en) | Hybrid gas generator for a safety air bag with mechanically opened air bag holding compartment | |
| CN203391727U (en) | Air generator for lateral air bag | |
| CN109664857B (en) | Mixed gas generator for side air bag | |
| CN203681474U (en) | Firework-like gas generator provided with powder box and applied to supplementary restraint system | |
| CN205344813U (en) | Car is secondary delay inflatable gas generator for air bag | |
| CN203391721U (en) | Firework type gas generator for airbag | |
| CN109677353B (en) | Mixed gas generator | |
| CN202541476U (en) | Hybrid gas generator for safety air bag | |
| CN2900260Y (en) | Gas generator for driver's safety air sac | |
| CN114407824B (en) | Gas generator with ignitions and explosion functions of igniters | |
| CN103398930B (en) | A kind of gas generator for safety air sac screen pack ventilation performance test system and method | |
| CN201169241Y (en) | Compressed gas type gas generator for main drive safety air bag | |
| CN203391724U (en) | Miniaturized airbag air generator | |
| CN201058593Y (en) | Automobile safety gas-bag main-drive hybrid gas generator | |
| CN203391722U (en) | Gas generator with variable combustion chamber | |
| CN209813912U (en) | Hybrid gas generator | |
| CN203391723U (en) | Safety air bag air generator | |
| CN211809502U (en) | Air bag cold air type gas generator | |
| CN104228752B (en) | A kind of gas combustion generator for safe automobile air bag | |
| CN204184308U (en) | A kind of gaseous combustion producer for safe automobile air bag |
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 | ||
| 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. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |