CN105984419B - A kind of gas generator - Google Patents
A kind of gas generator Download PDFInfo
- Publication number
- CN105984419B CN105984419B CN201510043885.8A CN201510043885A CN105984419B CN 105984419 B CN105984419 B CN 105984419B CN 201510043885 A CN201510043885 A CN 201510043885A CN 105984419 B CN105984419 B CN 105984419B
- Authority
- CN
- China
- Prior art keywords
- tubular shell
- shell
- gas
- cup
- exhaust
- 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
- Air Bags (AREA)
- Cookers (AREA)
Abstract
There are exhaust end cover in a kind of gas generator, tubular shell lower end；Gas throttling component, tubular shell, cup-shaped igniting shell, igniting pedestal are sequentially arranged in tubular shell from the bottom to top.There are multiple exhaust outlets on the exhaust end cover of cup-like structure.The gas throttling component openings end of cup-like structure is opposite with exhaust end cover open end, has recess portion on blind end end face, there is multiple intercommunicating pores in circumferential wall.Second self-cocking action medicine is packaged in through the second sealing foil in recess portion.There are multiple through-holes in the tubular shell circumferential wall of the big hypomere small stair tubular structure of epimere.The connection corresponding with the intercommunicating pore of gas throttling component of the partial through holes of tubular shell；Gas-forming agent is housed in tubular shell.Cup-shaped igniting has collar flange, the first self-cocking action medicine to be packaged at collar flange center through the first sealing foil on the end face of housings close end；There are one or more to pass burner at collar flange center；Cup-shaped is lighted a fire, and shell is interior to be equipped with the fiery agent of biography.The present invention is easy to through flame and slow heat run, and performance is more excellent.
Description
Technical field
The present invention relates to a kind of gas generator, the restraint device being installed in vehicle, such as air bag system etc.,
More particularly to a kind of gas generator used in side impact airbag system, for air bag to be unfolded in occupant side.
Background technology
It is usually designed to for the gas generator of vehicle side collision airbag deployment since installation site space limits
Slim cylindrical.Such gas generator must ensure the safety rule of structural intergrity by flame assay and slow heat run
It is fixed.
In flame assay and slow heat run, gas generator sets three kinds of testing positions relative to heating direction：
1, the igniter of gas generator is towards heating location；
2, the igniter of gas generator is far from heating location；
3, gas generator axis horizontal is placed and heating is located among gas generator.
Compared with the gas generator of disk-like structure, slim cylindrical structure axial length is long, so carrying out flame or adding slowly
When igniter in heat test is placed far from heating location or gas generator axis horizontal, to self-cocking action medicine position or device
Structure is more focused on, and to prevent gas generator shell material reduced performance caused by heat intensive, it is broken to increase structure
Broken danger.
Invention content
A kind of gas generator of slim cylindrical is provided it is an object of the invention to overcome the above-mentioned insufficient of the prior art,
It is easy to through flame and slow heat run, and performance is more excellent.
Technical program of the present invention lies in：Tubular shell lower end is equipped with exhaust end cover；Tubular shell inner cavity from the bottom to top according to
It is secondary that gas throttling component, tubular shell, cup-shaped igniting shell, igniting pedestal are housed.
The exhaust end cover is cup-shaped, and open at one end is connected with tubular shell lower end；It is set on the exhaust end cover
There are multiple exhaust outlets.
The gas throttling component is cup-shaped, and open end is opposite with exhaust end cover open end；The gas throttling
Component openings end is equipped with big flange；Outer diameter is equal to the tubular shell internal diameter at corresponding place at the big flange；Gas throttling portion
Part blind end end face is equipped with recess portion；Second self-cocking action medicine is packaged in through the second sealing foil in recess portion；Gas throttling component is justified
Peripheral wall is equipped with multiple intercommunicating pores；Connection hole number is preferably 5-9 odd number.
The tubular shell is in the small step tubular structure of the big hypomere of epimere；Small stair section lower end is installed in gas throttling portion
Part outer circle wall；Big step section is installed in the inner peripheral wall of the tubular shell；Tubular shell small stair section outer diameter is less than and it
The tubular shell internal diameter of corresponding position；Tubular shell circumferential wall is equipped with multiple through-holes；Through-hole diameter setting should ensure that the gas
Propellant cannot pass through, quantity preferably 36 to 64.The partial through holes of tubular shell lower part and the company on gas throttling component
Through-hole corresponds to connection；Gas-forming agent, diameter preferred 3mm to 5mm, thickness preferred 1mm to 2mm are housed in the tubular shell.
The cup-shaped igniting housings close side pressure is loaded on tubular shell upper end；Cup-shaped igniting housings close end end face is equipped with
Collar flange, the first self-cocking action medicine are packaged in through the first sealing foil at collar flange center；One is equipped at collar flange center
A or multiple biography burners；Cup-shaped is lighted a fire, and shell is interior to be equipped with the fiery agent of biography；Passing burner dimensionally ensures to pass fiery agent or self-cocking action medicine
It cannot pass through, or the biography burner is closed by sealing foil, obstruction passes fiery agent or self-cocking action medicine passes through.
Cup-shaped igniting shell upper end is pressed with igniting pedestal.
Exhaust outlet on the exhaust end cover is set in exhaust end cover circumferential wall.
Exhaust outlet on the exhaust end cover is set to exhaust end cover bottom.
The exhaust end cover open end is equipped with flange, and flange outer is connected with tubular shell lower end.
The big step section of tubular shell is in rib tubular structure.
The cylindrical structure of tubular shell small stair section.
The length of the big step section of tubular shell is 1 with the length ratio of small stair section:2~3.
Exhaust outlet on the exhaust end cover is closed by band to prevent the gas-forming agent from making moist.
The igniting pedestal outer circle wall is in the big step-like structure of the small hypomere of epimere；The tubular shell upper end close up with
Igniting pedestal small stair portion mutually blocks with fixed ignition pedestal.
Compared with the prior art, the advantages of the present invention are as follows：First, second self-cocking action medicine is respectively placed in tubular shell two
Recess portion at the cup-shaped igniting shell collar flange center at end on gentle body segment stream unit blind end end face is lighted a fire shell by cup-shaped
Biography burner on the gentle body segment stream unit of body is easy to self-cocking action medicine and passes heat transfer that fiery agent burning generates to being placed in pipe
The gas-forming agent of shape enclosure interior so that when gas generator carries out flame or slow heat run, igniter is far from heating position
It sets or gas generator axis horizontal places experiment and is easier to pass through.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of tubular shell.
Fig. 3 is the A-A sectional views of Fig. 1.
Specific implementation mode
In Fig. 1, the present invention, which includes the surface being placed in tubular shell 30, has the tubular shell 20 of through-hole；In tubular shell
30 one end, the igniting chamber for being limited by cup-shaped igniting shell 12 and being filled with the fiery agent of biography, self-cocking action medicine；By tubular shell
20 and gas throttling component 40 limit and with gas-forming agent, self-cocking action medicine fill combustion chamber；Tubular shell 20
It places so that forming gap between 30 circumferential inner wall of tubular shell outer circumferential walls and tubular shell.
30 lower end of tubular shell is equipped with exhaust end cover 50.30 inner cavity of tubular shell is sequentially arranged with gas throttling portion from the bottom to top
Part 40, tubular shell 20, cup-shaped igniting shell 12, igniting pedestal 11.
Igniting chamber 10 is provided in the igniter of 30 upper end 30a of tubular shell.Igniting chamber 10 be by known ignitron,
The fire agent 80 of the biography of graininess or sheet or the combination of gas-forming agent and cup-shaped igniting shell 12 form.Ignitron flange is fixed
In in igniting pedestal 11, the fiery agent 80 of biography of graininess or sheet or the combination loading of gas-forming agent are in cup-shaped igniting shell 12
It is interior, formula of the decomposition temperature higher than 200 DEG C can be selected as priming or gas-forming agent, cup-shaped igniting shell may be used
Punching press or machine add or forging and molding.
Collar flange 12b is arranged in cup-shaped igniting 12 blind end of shell, and the first self-cocking action medicine 100 is fixed on collar flange
In 12b, and with 110 open ends closed circular flange 12b of the first sealing foil, decomposition temperature can be selected less than 200 DEG C or even low
To 160 DEG C of formulas as the first self-cocking action medicine.
Cup-shaped, which is lighted a fire by 12 outer circle wall 12a of shell is contacted by being squeezed with 30 surfaces inner peripheral wall 30d of tubular shell, to be consolidated
It is fixed.
The lower end 30b in tubular shell is arranged in exhaust end cover 50, and in open end, 50a has flange and in outer circle wall
50b has multiple exhaust outlet 50c, closes exhaust outlet 50c by band 140, prevents gas-forming agent 60 from making moist, can select 4
A diameter 2mm circular through holes, punching press may be used for exhaust end cover or machine adds or forging and molding.
Gas throttling component 40 has blind end 40a and open end 40f, the open end 40f directions of gas throttling component 40
Exhaust end cover 50 and be adjacent to exhaust end cover open end 50a flange, the open end 40f of gas throttling component 40 is equipped with big convex
Edge 40d, and recess portion 40b is set at blind end 40a, the second self-cocking action medicine 120 is fixed in recess portion 40b, and close with second
It seals foil 130 and closes the open ends recess portion 40b.Decomposition temperature can be selected to be less than 200 DEG C, even as low as 160 DEG C of formula is as the
Two self-cocking action medicines.Punching press may be used for gas throttling component or machine adds or forging and molding.
It is provided with multiple intercommunicating pore 40c at the outer circle wall 40e of gas throttling component 40, can arrange 7 diameter 3mm
Intercommunicating pore.
Tubular shell 20 is placed in tubular shell 30, and multiple through-hole 20c are arranged in surface, it can be provided 8 rows are equidistantly led to
Hole, preceding 7 row often arrange the through-hole for being evenly arranged 8 2.5mm, are evenly arranged 7 3mm's close to last row of the second open end
Through-hole is with corresponding with 7 intercommunicating pore 40c on gas throttling component 40.
The big step section 20a outer circle walls of tubular shell 20 are contacted by being squeezed with the surfaces tubular shell inner peripheral wall 30e
And fix, by small stair section 20f inner peripheral walls are consolidated by squeezing contact with 40 surfaces outer circle wall 40e of gas throttling component
It is fixed.
Cup-shaped igniting shell 12,20 gentle body segment stream unit 40 of tubular shell pass through 30 circumferential inner wall surface of tubular shell
30e squeezes contact and axially and radially fixes, 12 axis of cup-shaped igniting shell, 20 axis of tubular shell, gas throttling component 40
Axis is consistent with 30 axis of tubular shell.
The big step section maximum outside diameter of tubular shell 20 is equal to the cylinder shell inner peripheral wall diameter；Small stair section circumference
Outer wall outer diameter is less than the cylinder shell inner peripheral wall diameter.The length of 20 big step section 20a of tubular shell and small stair section 20f
Length ratio be 1:3（As shown in Figure 2）.Pipe diameter expansion forming may be used in big step section 20a.The big step of tubular shell
Section is in rib tubular structure（As shown in Figure 3）.Gradually amplification gap is formed between tubular shell 20 and tubular shell 30, and in gas
Blind end 90 is formed at 40 big flange 40d of throttle part.
Combustion chamber 70 is by the gentle body segment stream unit of cup-shaped igniting shell 12 closed end, tubular shell 20e inner peripheral walls 40
The end faces blind end 40a surround.
Load gas-forming agent 60 in combustion chamber 70.Gas-forming agent 60 can have advantageous ignition performance and it is advantageous quickly
Combustibility.The embodiment of gas-forming agent 60 can select the round sheet gas-forming agent of diameter 3mm, thickness 1.5mm, point
Solve the formula that temperature is higher than 200 DEG C.
Flame or slow heat run are carried out, when igniter is towards heating location, igniting chamber 10 heats at first, is located at cup-shaped
The most preceding arrival decomposition temperature of the first self-cocking action medicine 100 lighted a fire in shell collar flange 12b lights light a fire positioned at cup-shaped first
The fiery agent 80 of the biography of shell 12 or the combination of gas-forming agent, and then generate certain heat gas ignition and be located at the gas in combustion chamber 70
Body propellant 60, gas generator proper detonation.
When igniter is far from heating location, the position heated at first is located at the exhaust end cover of 30 lower end 30b of tubular shell
50, as temperature is transmitted, heat can be transmitted to gas throttling component 40, and second in gas throttling member concave portions 40b is certainly
120 most preceding arrival decomposition temperature of dynamic priming, generates certain heat, and then light the gas-forming agent in combustion chamber 70
60, pass fiery agent 80 or the combination of gas-forming agent, gas generator can also proper detonation, and be located at 30 upper end of tubular shell
The ignitron of the igniting chamber 10 of 30a finally detonates.
When gas generator axis horizontal is placed, the position heated at first is located at 30 middle part of tubular shell, with temperature
It transmits, heat can be almost instantaneously communicated to gas throttling component 40 and cup-shaped igniting shell 12, and it is cyclic annular to be located at cup-shaped igniting shell
The second self-cocking action medicine 120 in 100 gentle body segment stream unit recess portion 40b of the first self-cocking action medicine in flange 12b is almost same
When reach decomposition temperature, and then generate certain heat gas ignition and be located at the gas-forming agent 60 in combustion chamber 70, gas generation
Device equally can be with proper detonation.
Gas generator according to the present invention has structure as described above, is easy to through flame and slow heat run,
The proper detonation of gas generator is not influenced.
Above-described embodiment is to illustrate and be not limitation.The present invention technical scope determined by claims, and
Also include to be equal to the record of claims and being had altered in the range.
Claims (8)
1. a kind of gas generator, it is characterised in that：Tubular shell（30）Lower end is equipped with exhaust end cover（50）；Tubular shell（30）
Inner cavity is sequentially arranged with gas throttling component from the bottom to top（40）, tubular shell（20）, cup-shaped light a fire shell（12）, igniting pedestal
（11）；
The exhaust end cover（50）It is cup-shaped, open at one end and tubular shell（30）Lower end is connected；The exhaust end cover
（50）It is equipped with multiple exhaust outlets（50c）；
The gas throttling component（40）It is cup-shaped, open end（40f）With exhaust end cover（50）Open end（50a）Phase
It is right；The gas throttling component（40）Open end（40f）Equipped with big flange（40d）；The big flange（40d）Locate outer diameter be equal to
The tubular shell of its corresponding position（30）Internal diameter；Gas throttling component（40）Blind end（40a）End face is equipped with recess portion（40b）；
Second self-cocking action medicine（120）Through the second sealing foil（130）It is packaged in recess portion（40b）It is interior；Gas throttling component（40）Circle
Peripheral wall is equipped with multiple intercommunicating pores（40c）；
The tubular shell（20）In the small step tubular structure of the big hypomere of epimere, the tubular shell（20）Big step section
（20a）Length and small stair section（20f）Length ratio be 1:2~3；Small stair section（20f）Lower end is installed in gas throttling portion
Part（40）Outer circle wall（40e）；Big step section（20a）It is installed in the tubular shell（30）Inner peripheral wall（30e）；Tubular shell
Body（20）Small stair section（20f）Outer diameter is less than the tubular shell at corresponding place（30）Internal diameter；Tubular shell（20）In circumferential wall
Equipped with multiple through-holes（20c）；Tubular shell（20）The partial through holes of lower part（20c）With gas throttling component（40）On intercommunicating pore
（40c）Corresponding connection；The tubular shell（20）It is interior that gas-forming agent is housed（60）；
The cup-shaped igniting shell（12）Blind end is pressed in tubular shell（20）Upper end；Cup-shaped igniting shell（12）Blind end end
Face is equipped with collar flange（12b）, the first self-cocking action medicine（100）Through the first sealing foil（110）It is packaged in collar flange（12b）
At center；Collar flange（12b）It is equipped at center and passes burner；Cup-shaped igniting shell（12）Interior be equipped with passes fiery agent（80）；Cup-shaped point
Fiery shell（12）Upper end is pressed with igniting pedestal（11）.
2. gas generator according to claim 1, it is characterised in that：The exhaust end cover（50）On exhaust outlet
（50c）It is set in exhaust end cover circumferential wall.
3. gas generator according to claim 1, it is characterised in that：The exhaust end cover（50）On exhaust outlet
（50c）It is set to exhaust end cover bottom.
4. gas generator according to claim 1, it is characterised in that：The exhaust end cover（50）Open end（50a）If
There are flange, flange outer and tubular shell（30）Lower end is connected.
5. gas generator according to claim 1, it is characterised in that：The tubular shell（20）Big step section（20a）
In rib tubular structure.
6. gas generator according to claim 1, it is characterised in that：The tubular shell（20）Small stair section（20f）
Cylindrical structure.
7. gas generator according to claim 1,2 or 3, it is characterised in that：The exhaust end cover（50）On exhaust
Mouthful（50c）It is closed by band to prevent gas-forming agent from making moist.
8. gas generator according to claim 1, it is characterised in that：The igniting pedestal（11）Outer circle wall is in epimere
The big step-like structure of small hypomere；The tubular shell（30）Upper end, which is closed up, mutually blocks with igniting pedestal small stair portion with fixed ignition
Pedestal（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510043885.8A CN105984419B (en) | 2015-01-29 | 2015-01-29 | A kind of gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510043885.8A CN105984419B (en) | 2015-01-29 | 2015-01-29 | A kind of gas generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105984419A CN105984419A (en) | 2016-10-05 |
| CN105984419B true CN105984419B (en) | 2018-10-30 |
Family
ID=57034209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510043885.8A Active CN105984419B (en) | 2015-01-29 | 2015-01-29 | A kind of gas generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105984419B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016123312A1 (en) | 2016-12-02 | 2018-06-07 | Trw Airbag Systems Gmbh | GAS GENERATOR, GAS TANK MODULE AND VEHICLE SAFETY SYSTEM |
| CN108146383B (en) * | 2017-12-21 | 2020-02-07 | 湖北航天化学技术研究所 | Tablet, gas generator and gas generating equipment |
| CN108213165A (en) * | 2018-01-08 | 2018-06-29 | 伟业精密科技（惠州）有限公司 | Air-cushion inflator housing one is into having more reverse-drawing Sheet Metal Forming Technology |
| CN114084094B (en) * | 2021-10-26 | 2023-03-24 | 湖北航天化学技术研究所 | Low-cost columnar safety airbag gas generator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6412816B1 (en) * | 1999-01-27 | 2002-07-02 | Contec Chemieanlagen Gmbh | Gas generator |
| CN204432595U (en) * | 2015-01-29 | 2015-07-01 | 湖北航天化学技术研究所 | A kind of gas generator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09226508A (en) * | 1996-02-26 | 1997-09-02 | Nippon Kayaku Co Ltd | Gas generator for air bag |
| US8496266B2 (en) * | 2005-06-02 | 2013-07-30 | Tk Holdings, Inc. | Gas generating system |
| US20080078486A1 (en) * | 2006-09-30 | 2008-04-03 | Khandhadia Paresh S | Gas generating system and composition |
-
2015
- 2015-01-29 CN CN201510043885.8A patent/CN105984419B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6412816B1 (en) * | 1999-01-27 | 2002-07-02 | Contec Chemieanlagen Gmbh | Gas generator |
| CN204432595U (en) * | 2015-01-29 | 2015-07-01 | 湖北航天化学技术研究所 | A kind of gas generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105984419A (en) | 2016-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102162699B1 (en) | Gas generator for occupant restraining device | |
| CN105984419B (en) | A kind of gas generator | |
| JP5965334B2 (en) | Gas generator | |
| JP5399935B2 (en) | Gas generator | |
| JP2002046569A5 (en) | ||
| KR102309123B1 (en) | gas producer | |
| JP2011207326A (en) | Gas generator | |
| JP6184829B2 (en) | Gas generator | |
| JP6930981B2 (en) | Gas generator | |
| JPWO2011043314A1 (en) | Method for producing perforated pipe for gas generator and gas generator | |
| CN102791538A (en) | Gas generator having combustion chamber including cushion member | |
| JP6675255B2 (en) | Gas generator | |
| KR20190141647A (en) | gas producer | |
| CN204432595U (en) | A kind of gas generator | |
| KR102292867B1 (en) | Gas generator | |
| JP6804374B2 (en) | Gas generator | |
| JP6933527B2 (en) | Gas generator | |
| JP3137916U (en) | Gas generator | |
| JP5243114B2 (en) | Gas generator | |
| JP2019093318A (en) | Gas generator | |
| JP4993646B2 (en) | Combustor | |
| JP7270793B2 (en) | gas generator | |
| JP2008149837A (en) | Gas generator | |
| JP2009208483A (en) | Gas generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |