CN203681473U - Minitype firework type airbag gas generator - Google Patents
Minitype firework type airbag gas generator Download PDFInfo
- Publication number
- CN203681473U CN203681473U CN201420022572.5U CN201420022572U CN203681473U CN 203681473 U CN203681473 U CN 203681473U CN 201420022572 U CN201420022572 U CN 201420022572U CN 203681473 U CN203681473 U CN 203681473U
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- China
- Prior art keywords
- medicine box
- filter
- gas generator
- row
- upper casing
- 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
- 239000003814 drug Substances 0.000 claims description 37
- 239000011148 porous material Substances 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 23
- 239000005030 aluminium foil Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 239000000126 substance Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- 239000011888 foil Substances 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003721 gunpowder Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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- Air Bags (AREA)
Abstract
The utility model discloses a minitype firework type airbag gas generator which comprises an ignitron, a lower shell flange, a chemical box, a gas generating chemical, a first row of exhaust holes, an upper shell, a filter, a second row of exhaust holes, aluminum foil and protrusions. The lower shell flange and the upper shell are matched and assembled, the ignitron is mounted on the lower shell flange, the chemical box is arranged in the upper shell, the gas generating chemical is arranged in the chemical box, the ignitron makes contact with the gas generating chemical in the chemical box, the first row of exhaust holes and the protrusions are arranged on the chemical box, the protrusions are arranged below the exhaust holes, the filter is arranged between the upper shell and the chemical box, the second row of exhaust holes are formed in the position, corresponding to the filter, in the upper shell, and the aluminum foil is arranged in the second row of exhaust holes. Through the engineering that other parts are integrated with the chemical box, the filter is made to be smaller in size and lighter under the same filter effect. The generator is smaller in size and lighter. A better inflation effect can be achieved through the gas generating chemical of the same weight.
Description
[technical field]
The utility model relates to the technical field of the technical field, particularly air-cushion inflator of safety air bag parts.
[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, 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 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.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.
The air-cushion inflator of driver side generally need to effectively be full of the airbag of 40L～55L at present; according to the demand of air bag protection effect; general inflationtime is 60～90ms; in 60L pressure vessel testing, the general peak value of its pressure curve is 170kPa～210kPa, and gas molar weight is not from 0.9mol～1.3mol etc.
The general size of the gas generator of the safety air bag of driver side is external diameter 70mm left and right at present, size is relatively large, weight compares heavier, cost is also relatively high simultaneously, and along with the development in chaufeur space in steering wheel arrangement and car, less, lighter air bag module has needed to be brought to schedule.
[utility model content]
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of small-sized pyrotechnic airbag gas generator, can reduce costs, and reduces the size of gas generator, alleviates the weight of gas generator.
For achieving the above object, the utility model proposes a kind of small-sized pyrotechnic airbag gas generator, comprise ignition tube, lower casing flange, medicine box, gas generant composition in accordance, first row pore, upper casing, filter, second row pore, aluminium foil and projection, described lower casing flange coordinates installation with upper casing, on lower casing flange, ignition tube is installed, in described upper casing, be provided with medicine box, in described medicine box, be provided with gas generant composition in accordance, ignition tube contacts with the gas generant composition in accordance in medicine box, described medicine box is provided with some first row pores and projection, described projection is located at the below of first row pore, between described upper casing and medicine box, be provided with filter, on described upper casing, be provided with second row pore with filter corresponding position, described second row pore is provided with aluminium foil.
As preferably, described ignition tube adopts injection point fire tube, and described ignition tube is connected with medicine box employing interference fit, and the outer end of described ignition tube is connected with stitch.
As preferably, described lower casing flange and upper casing all adopt laser welding structure to be connected to form closed cavity.
As preferably, described first row gas cell distribution is on the top of medicine box, and filter bits is in the lower outside of upper casing.
As preferably, projection on described medicine box is made up of upper convex portion and the lower protuberance that is positioned at upper convex portion below, upper convex portion is circle-shaped distribution by some salient points, and lower protuberance is to be also circle-shaped distribution by some salient points, and the salient point on the salient point in upper convex portion and lower protuberance is longitudinally interspersed.
The beneficial effects of the utility model: the utility model passes through the engineering of integrated other part of medicine box, and under identical filter effect, filter can do to such an extent that volume is less, and weight is lighter.Thereby the integral structure of gas generator can be optimized greatly, accomplish less with respect to present producer volume, the feature that weight is lighter.And producer reaches by the heat and the momentum that increase gas the object that increases inflation effect.Make like this gas generant composition in accordance of equivalent weight, can reach higher inflation effect.
Feature of the present utility model and advantage will be elaborated by reference to the accompanying drawings by embodiment.
[brief description of the drawings]
Fig. 1 is the structural representation of a kind of small-sized pyrotechnic airbag gas generator of the utility model;
Fig. 2 is the structural representation of the medicine box of a kind of small-sized pyrotechnic airbag gas generator of the utility model;
Fig. 3 is the enlarged drawing of A in Fig. 2.
In figure: protuberance under 1-ignition tube, 2-lower casing flange, 3-medicine box, 4-gas generant composition in accordance, 5-first row pore, 6-upper casing, 7-filter, 8-second row pore, 9-aluminium foil, 10-projection, 11-upper convex portion, 12-.
[detailed description of the invention]
Consult Fig. 1, Fig. 2 and Fig. 3, a kind of small-sized pyrotechnic airbag gas generator of the utility model, comprise ignition tube 1, lower casing flange 2, medicine box 3, gas generant composition in accordance 4, first row pore 5, upper casing 6, filter 7, second row pore 8, aluminium foil 9 and projection 10, described lower casing flange 2 is provided with upper casing 6 and ignition tube 1, described upper casing 6 is provided with second row pore 8 and aluminium foil 9, described second row pore 8 is provided with aluminium foil 9, in described upper casing 6, be provided with medicine box 3, in described medicine box 3, be provided with gas generant composition in accordance 4, described medicine box 3 is provided with first row pore 5 and projection 10, described protruding 10 are located at the below of first row pore 5, between described upper casing 6 and medicine box 3, be provided with filter 7, described ignition tube 1 is connected with medicine box 3, described ignition tube 1 adopts injection point fire tube, described ignition tube 1 adopts interference fit to be connected with medicine box 3, and ignition tube 1 contacts with gas generant composition in accordance 4, the outer end of described ignition tube 1 is connected with stitch, described lower casing flange 2 and upper casing 6 adopt laser welding structure to be connected to form closed cavity, described medicine box 3 is provided with several first row pores 5, described several first row pores 5 are evenly distributed in the upper periphery of medicine box 3, projection 10 on described medicine box 3 is made up of upper convex portion 11 and the lower protuberance 12 that is positioned at upper convex portion 11 belows, upper convex portion 11 is circle-shaped distribution by some salient points, lower protuberance 12 is to be also circle-shaped distribution by some salient points, salient point on salient point in upper convex portion 11 and lower protuberance 12 is longitudinally interspersed.
The utility model working process: a kind of small-sized pyrotechnic airbag gas generator of the utility model in the course of the work, by ignition tube 1 gas generant composition in accordance 4 of igniting, the gas producing is by first row pore 5 and projection 10, enter filter 7, discharge from second row pore 8, first row pore 5 is used for filtering large residue, the curve that projection 10 can realize gas realizes the effect that stops flame and solid residue, filter 7 is used for filtering the gas of discharging, the utility model passes through the engineering of medicine box 3 integrated other parts, therefore, under identical filter effect, filter 7 can do to such an extent that volume is less, weight is lighter.Thereby the integral structure of gas generator can be optimized greatly, accomplish less with respect to present producer volume, the feature that weight is lighter.And producer reaches by the heat and the momentum that increase gas the object that increases inflation effect.Make like this gas generant composition in accordance of equivalent weight, can reach higher inflation effect.
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 (5)
1. a small-sized pyrotechnic airbag gas generator, it is characterized in that: comprise ignition tube (1), lower casing flange (2), medicine box (3), gas generant composition in accordance (4), first row pore (5), upper casing (6), filter (7), second row pore (8), aluminium foil (9) and projection (10), described lower casing flange (2) coordinates installation with upper casing (6), ignition tube (1) is installed on lower casing flange (2), in described upper casing (6), be provided with medicine box (3), in described medicine box (3), be provided with gas generant composition in accordance (4), ignition tube (1) contacts with the gas generant composition in accordance (4) in medicine box (3), described medicine box (3) is provided with some first row pores (5) and projection (10), described projection (10) is located at the below of first row pore (5), between described upper casing (6) and medicine box (3), be provided with filter (7), on described upper casing (6) and filter (7) corresponding position is provided with second row pore (8), described second row pore (8) is provided with aluminium foil (9).
2. the small-sized pyrotechnic airbag gas generator of one as claimed in claim 1, it is characterized in that: described ignition tube (1) adopts injection point fire tube, the inner of described ignition tube (1) is stretched in medicine box (3), contact with the gas generant composition in accordance (4) in medicine box (3), the outer end of described ignition tube (1) is connected with stitch.
3. the small-sized pyrotechnic airbag gas generator of one as claimed in claim 1, it is characterized in that: described lower casing flange (2) coordinates with upper casing (6) installs formation closed cavity, between lower casing flange (2) and upper casing (6), is connected by laser welding.
4. the small-sized pyrotechnic airbag gas generator of one as claimed in claim 1, is characterized in that: described first row pore (5) is distributed in the top of medicine box (3), filter (7) is positioned at the lower outside of upper casing (6).
5. the small-sized pyrotechnic airbag gas generator of the one as described in any one in claim 1 to 4, it is characterized in that: the projection (10) on described medicine box (3) is by upper convex portion (11) and be positioned at lower protuberance (12) formation below upper convex portion (11), upper convex portion (11) is circle-shaped distribution by some salient points, lower protuberance (12) is to be also circle-shaped distribution by some salient points, and the salient point on the salient point in upper convex portion (11) and lower protuberance (12) is longitudinally interspersed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420022572.5U CN203681473U (en) | 2014-01-14 | 2014-01-14 | Minitype firework type airbag gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420022572.5U CN203681473U (en) | 2014-01-14 | 2014-01-14 | Minitype firework type airbag gas generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203681473U true CN203681473U (en) | 2014-07-02 |
Family
ID=51003415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420022572.5U Expired - Lifetime CN203681473U (en) | 2014-01-14 | 2014-01-14 | Minitype firework type airbag gas generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203681473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946777A (en) * | 2015-03-06 | 2016-09-21 | 丰田合成株式会社 | Air bag case |
-
2014
- 2014-01-14 CN CN201420022572.5U patent/CN203681473U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946777A (en) * | 2015-03-06 | 2016-09-21 | 丰田合成株式会社 | Air bag case |
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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 | ||
| 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 |