CN207466594U - A kind of buffering filtering type gas generator - Google Patents
A kind of buffering filtering type gas generator Download PDFInfo
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- CN207466594U CN207466594U CN201721524650.1U CN201721524650U CN207466594U CN 207466594 U CN207466594 U CN 207466594U CN 201721524650 U CN201721524650 U CN 201721524650U CN 207466594 U CN207466594 U CN 207466594U
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- gas
- gathering mask
- gas gathering
- filtering type
- fiery cylinder
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Abstract
The utility model discloses a kind of buffering filtering type gas generators, including housing and end cap, the middle part of the end cap is equipped with igniter seat, igniter is equipped in the igniter seat, the inner end of the igniter seat is connected with the fiery cylinder of biography, it passes in fiery cylinder and is equipped with starting mix, the gas gathering mask for being set in and passing on the outside of fiery cylinder is equipped in the housing, gas generant composition in accordance is equipped in the gas gathering mask, the side for passing fiery cylinder is equipped with the side through hole with being connected inside gas gathering mask, the top open part of the gas gathering mask is equipped with buffer layer, strainer is equipped between the side wall and inner walls of gas gathering mask, the side wall of the housing is equipped with gas port.The utility model is intended to provide a kind of effective buffering filtering type gas generator for alleviating the impact of gas generant composition in accordance combustion explosion.
Description
Technical field
The utility model belongs to gas generator technology field more particularly to a kind of buffering filtering type gas generator.
Background technology
Air bag is very important safety device on automobile, and when accident occurs for automobile, gas generator is to safety
Airbag aeration can effectively reduce injury of the accident to human body, so as to protect the life security of driver and motroist.It is common
Gas generator principle is all igniter（Ignitron）Igniting, combustion-supporting medicine burns and gas generant composition in accordance of igniting, and is generated after gas generant composition in accordance burning
A large amount of gases, so as to airbag aeration.Gas generant composition in accordance loads in the combustion chamber, and gas generant composition in accordance moment of igniting can generate very big pressure,
So as to which inner wall, the side wall to combustion chamber have very big impact force, impact excessive Inner Wall of Combustion Chamber, housing etc. of being easy to cause and cause
Damage.
Such as Chinese Patent Application No. is CN201520453989.1, the applying date is on June 29th, 2015, discloses a kind of vapour
Vehicle air-cushion inflator, including shell, gas generant composition in accordance, ignitron, fixing piece and automatic ignition medicine；Enclosure forms close
The combustion chamber closed；Gas generant composition in accordance and ignitron may be contained in the combustion chamber of shell；Fixing piece is located in the combustion chamber, and fixed
In on outer casing inner wall；Lock chamber is formed inside fixing piece, there are multiple connection lock chambers and the mesh of combustion chamber on fixing piece；From
Dynamic ignition charge is set to the interior lock chamber of the fixing piece.Gas generant composition in accordance combustion explosion moment in this kind of gas generator generates punching
It is very big to hit power, which can cause gas generator various components inside and housing to damage.
Invention content
The utility model is to overcome above-mentioned deficiency of the prior art, provides a kind of gas generant composition in accordance of effectively alleviating and burns
The buffering filtering type gas generator of blast impulse.
To achieve these goals, the utility model uses following technical scheme：
A kind of buffering filtering type gas generator, including housing and end cap, the middle part of the end cap is equipped with igniter seat, institute
It states and igniter is equipped in igniter seat, the inner end of the igniter seat is connected with the fiery cylinder of biography, passes in fiery cylinder and is equipped with starting mix,
The gas gathering mask for being set in and passing on the outside of fiery cylinder is equipped in the housing, gas generant composition in accordance is equipped in the gas gathering mask, it is described to pass fiery cylinder
Side be equipped with the side through hole that connect inside gas gathering mask, the top open part of the gas gathering mask equipped with buffer layer, gas gathering mask
Strainer is equipped between side wall and inner walls, the side wall of the housing is equipped with gas port.Starting mix is lighted in igniter igniting
When, the high-temperature gas of starting mix explosion generation is gone out the fiery cylinder of biography and is entered in gas gathering mask, and gas generant composition in accordance is ignited, gas generant composition in accordance burning
Explosion time generates impact force to gas gathering mask, and upward impact force is then absorbed by buffer layer, and lateral impactor acts on gas gathering mask
Side wall, make the sidewall extrusion strainer of gas gathering mask.Gas is come by strainer between housing and gas gathering mask, finally at gas port
Discharge.
Preferably, it is welded and fixed between the end cap and housing.After end cap and case weld are fixed, the two connection
It is more solid and reliable.
Preferably, the top side wall of the gas gathering mask is equipped with the contraction mouth of taper, the filter screen set is set on contraction mouth
Outer wall.Contraction mouth at the top of gas gathering mask is conducive to the upward impact force directed of explosion time to buffer layer, at the same be also beneficial to by
Lateral impact force directed is to strainer, so as to improve buffering effect.
Preferably, the middle part of the gas gathering mask is equipped with the centre bore with passing fiery cylinder body outer wall cooperation, gas gathering mask is at center
The positioning cylinder that positioning passes fiery cylinder is equipped at hole.In this way, gas gathering mask and the location fit passed between fiery cylinder are more reliable.
Preferably, the flaring with the cooperation positioning of igniter seat is equipped at the fiery cartridge openings of the biography.
The beneficial effects of the utility model are：To gas generant composition in accordance combustion explosion moment into row buffering, damping, so as to prevent gas
Generator various components inside and housing damage, and keep overall stability.
Description of the drawings
Fig. 1 is a kind of structure diagram of the utility model；
In figure：End cap 1, igniter seat 2, igniter 3, buffer layer 4, strainer 5, housing 6, gas port 6a, gas generant composition in accordance 7 pass
Gunpowder 8 passes fiery cylinder 9, and side through hole 9a is flared 9b, and gas gathering mask 10 positions cylinder 10a, contraction mouth 10b.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and detailed description.
In embodiment as shown in Figure 1, a kind of buffering filtering type gas generator, including housing 6 and end cap 1, end cap with
Laser welding is fixed between housing.The middle part of end cap is equipped with igniter seat 2, and igniter 3 is equipped in igniter seat, igniter seat
Inner end is connected with the fiery cylinder 9 of biography, passes the flaring 9b being equipped at fiery cartridge openings with the cooperation positioning of igniter seat.It passes and is set in fiery cylinder
There is starting mix 8, the gas gathering mask 10 for being set in and passing on the outside of fiery cylinder is equipped in housing, the middle part of gas gathering mask is equipped with passing outside fiery cylinder
The centre bore of wall cooperation, gas gathering mask are equipped with the positioning cylinder 10a of the fiery cylinder of positioning biography in central hole.Aerogenesis is equipped in gas gathering mask
Medicine 7, the side for passing fiery cylinder are equipped with the side through hole 9a connected with gas gathering mask inside, and the top open part of gas gathering mask is equipped with buffer layer
4, strainer 5 is equipped between the side wall and inner walls of gas gathering mask, the top side wall of gas gathering mask is equipped with the contraction mouth 10b of taper, filter
Net cover is set on the outer wall of contraction mouth, and the side wall of housing is equipped with gas port 6a.
When igniter is lighted a fire, when the starting mix passed in fiery cylinder is lighted, starting mix explosion generates high-temperature gas, gas
It is entered in gas gathering mask by the side through hole for passing fiery cylinder, gas generant composition in accordance is ignited.Gas gathering mask is generated during gas generant composition in accordance combustion explosion
Impact force, the impact force of explosion are absorbed by the buffer layer above gas gathering mask and the strainer of side.Gas is by strainer from shell
It is discharged at the gas port of body.Gas generant composition in accordance in combustion explosion moment, buffer layer and strainer to blast impulse into row buffering, so as to keep
Overall stability.
Claims (5)
1. a kind of buffering filtering type gas generator, including housing（6）With end cap（1）, the end cap（1）Middle part be equipped with igniting
Has seat（2）, the igniter seat（2）It is interior to be equipped with igniter（3）, the igniter seat（2）Inner end be connected with the fiery cylinder of biography
（9）, pass fiery cylinder（9）It is interior to be equipped with starting mix（8）, it is characterized in that, the housing（6）Interior be equipped with is set in the fiery cylinder of biography（9）Outside
The gas gathering mask of side（10）, the gas gathering mask（10）It is interior to be equipped with gas generant composition in accordance（7）, it is described to pass fiery cylinder（9）Side be equipped with and gas collection
Cover（10）The side through hole of inside connection（9a）, the gas gathering mask（10）Top open part be equipped with buffer layer（4）, gas gathering mask（10）
Side wall and housing（6）Strainer is equipped between inner wall（5）, the housing（6）Side wall be equipped with gas port（6a）.
2. a kind of buffering filtering type gas generator according to claim 1, it is characterized in that, the end cap（1）And shell
Body（6）Between be welded and fixed.
3. a kind of buffering filtering type gas generator according to claim 1 or 2, it is characterized in that, the gas gathering mask（10）
Top side wall be equipped with taper contraction mouth（10b）, the strainer（5）It is sheathed on contraction mouth（10b）Outer wall.
4. a kind of buffering filtering type gas generator according to claim 1 or 2, it is characterized in that, the gas gathering mask（10）
Middle part be equipped with and pass fiery cylinder（9）The centre bore of outer wall cooperation, gas gathering mask（10）Positioning, which is equipped with, in central hole passes fiery cylinder
（9）Positioning cylinder（10a）.
5. a kind of buffering filtering type gas generator according to claim 1 or 2, it is characterized in that, the biography fire cylinder
（9）Opening is equipped with and igniter seat（2）Coordinate the flaring of positioning（9b）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524650.1U CN207466594U (en) | 2017-11-15 | 2017-11-15 | A kind of buffering filtering type gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524650.1U CN207466594U (en) | 2017-11-15 | 2017-11-15 | A kind of buffering filtering type gas generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207466594U true CN207466594U (en) | 2018-06-08 |
Family
ID=62260493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721524650.1U Active CN207466594U (en) | 2017-11-15 | 2017-11-15 | A kind of buffering filtering type gas generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN207466594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987456A (en) * | 2019-11-18 | 2020-04-10 | 上海新力动力设备研究所 | Engine simulation device for ignition device test |
-
2017
- 2017-11-15 CN CN201721524650.1U patent/CN207466594U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987456A (en) * | 2019-11-18 | 2020-04-10 | 上海新力动力设备研究所 | Engine simulation device for ignition device test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180827 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. |