CN206954171U - A kind of small-sized pyrotechnic airbag gas generator of column - Google Patents
A kind of small-sized pyrotechnic airbag gas generator of column Download PDFInfo
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- CN206954171U CN206954171U CN201720542196.6U CN201720542196U CN206954171U CN 206954171 U CN206954171 U CN 206954171U CN 201720542196 U CN201720542196 U CN 201720542196U CN 206954171 U CN206954171 U CN 206954171U
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- filter screen
- connection ring
- combustion chamber
- gas generator
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Abstract
It the utility model is related to automobile safety system technical field, disclose a kind of small-sized pyrotechnic airbag gas generator of column, shell including column, the left end of the shell is provided with igniting tube head, the right end sidewalls of the shell are provided with some steam vents, the right-hand member end of the shell is provided with end cap, the tubular filter screen for covering steam vent is provided with inside the right-hand member of the shell, the inwall of the tubular filter screen is provided with some annulars and stores up slag chute, the left end of the tubular filter screen is provided with pressurize partition, position between the pressurize partition and igniting tube head forms combustion chamber, starting mix and gas generant composition in accordance are provided with the combustion chamber.The utility model have can effectively prevent gas generant composition in accordance burn after residue block filter screen, ensure air bag stablize it is inflating expanded, using safer beneficial effect.
Description
Technical field
It the utility model is related to automobile safety system technical field, more particularly to a kind of 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, injury of the accident to human body can be effectively reduced, 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 produced after gas generant composition in accordance burning
A large amount of gases, gas, to airbag aeration, residue can be also produced while amount of heat is produced when gas generant composition in accordance is burnt after filter screen,
Residue easily blocks the filter opening of filter screen and causes to inflate resistance increase, is unfavorable for the stable expansion of air bag.Such as Application No.
CN201520453989.1, a kind of automobile safety air bag gas generator, including shell, gas generant composition in accordance, ignitron, fixture are disclosed
With automatic ignition medicine.Use plane formula filter screen in this kind of gas generator, the gas generant composition in accordance gunpowder residue to be formed that burns easily blocks
Filter screen, so as to cause, inflation is not smooth, airbag deployment is unstable.
Utility model content
The utility model easily blocks to solve the residue of the burning of the gas generant composition in accordance in gas generator of the prior art
Filter and cause inflation not smooth to be asked, there is provided it is a kind of can effectively prevent gas generant composition in accordance burn after residue block filter screen, ensure
Air bag stablizes the small-sized pyrotechnic airbag gas generator of inflating expanded column.
To achieve these goals, the utility model adopts the following technical scheme that：
A kind of small-sized pyrotechnic airbag gas generator of column, include the shell of column, the left end of the shell
Provided with igniting tube head, the right end sidewalls of the shell are provided with some steam vents, and the right-hand member end of the shell is provided with end cap, described
The tubular filter screen for covering steam vent is provided with inside the right-hand member of shell, the inwall of the tubular filter screen is provided with some annulars and stores up slag
Groove, the left end of the tubular filter screen are provided with pressurize partition, and the position between the pressurize partition and igniting tube head forms combustion chamber,
Starting mix and gas generant composition in accordance are provided with the combustion chamber.Light a fire tube head igniting, starting mix for gas generant composition in accordance provides heat, aerogenesis after igniting
Medicine produces substantial amounts of gas, residue after being ignited by starting mix, the air pressure moment increase in combustion chamber, so as to which pressurize partition be rushed
Broken, gas is discharged after tubular filter screen at steam vent；On the one hand tubular filter screen can reduce gas temperature, another aspect tubulose
The surface area of filter screen inwall is larger, and filter area is big, and filter screen is not easy to be blocked, while annular storage slag chute further increases filtering
Area, the residue after gas generant composition in accordance burning are accumulated in storage slag chute, are not easily blocked filter screen, and gas quickly, stably can enter gas
In capsule, it is ensured that air bag is stable to deploy, and use is safer.
Preferably, the left end of the igniting tube head is provided with sealing ring, the right-hand member of the igniting tube head is provided with beam, institute
The center of beam is stated provided with the vent with combustion chamber.Sealing ring plays sealing function, prevent gas generant composition in accordance, starting mix by
Tide；Beam lights moment in starting mix, gas generant composition in accordance and plays cushioning effect.
Preferably, the left end of the combustion chamber is provided with Isolation net cover, combustion chamber is separated into biography fire by the Isolation net cover
Room, aerogenesis room, described vent connect with described biography fire room, and described starting mix is placed in indoor, the described aerogenesis of biography fire
Medicine is placed in aerogenesis room.Isolation net cover is easy to the filling of starting mix, gas generant composition in accordance, while the residue that can be reduced after starting mix burning enters
Enter filter screen, reduce the residue at filter screen.
Preferably, the pressurize partition includes connection ring, the spacer that is located in connection ring, described connection ring with it is outer
It is welded to connect between shell, described spacer is plastic sheet.Caused heat can melt spacer after gas generant composition in accordance burning, so as to
So that gas is discharged after tubular filter screen from steam vent is stable.
Preferably, the pressurize partition includes connection ring, the spacer that is located in connection ring, described connection ring with it is outer
It is welded to connect between shell, described connection ring is integral type structure with spacer, and described connection ring is with spacer by aluminium alloy
It is made, the side of the spacer is provided with some radially distributed reduction grooves.After gas generant composition in accordance burning, the air pressure in combustion chamber increases
Greatly, spacer is pressurized broken, so that gas is discharged after tubular filter screen from steam vent is stable.
Preferably, it is welded to connect between described end cap and shell.
Therefore, there is the utility model the residue after effectively preventing gas generant composition in accordance burning to block filter screen, ensure that air bag is stable
It is inflating expanded, use safer beneficial effect.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is partial structural diagram of the present utility model.
Fig. 3 is the structural representation of pressurize partition.
Fig. 4 is Fig. 3 left view.
In figure：Shell 1, igniting tube head 2, steam vent 3, end cap 4, tubular filter screen 5, annular storage slag chute 50, pressurize partition 6,
Combustion chamber 7, pass fiery room 70, aerogenesis room 71, starting mix 8, gas generant composition in accordance 9, sealing ring 10, beam 11, vent 12, Isolation net cover
13rd, connection ring 60, spacer 61, reduction groove 62.
Embodiment
The utility model is further described with reference to the accompanying drawings and detailed description：
The small-sized pyrotechnic airbag gas generator of a kind of column as depicted in figs. 1 and 2, include the shell of column
1, the left end of shell is provided with igniting tube head 2, and the right end sidewalls of shell 1 are provided with some steam vents 3, and the right-hand member end of shell is provided with end
Lid 4, it is welded to connect between end cap 4 and shell, the tubular filter screen 5 for covering steam vent, tubular filter is provided with inside the right-hand member of shell 1
The inwall of net 5 is provided with some annulars and stores up slag chute 50, and the left end of tubular filter screen is provided with pressurize partition 6, pressurize partition and igniting tube head
Between position form combustion chamber 7, be provided with starting mix 8 and gas generant composition in accordance 9 in combustion chamber；
The left end of igniting tube head 2 is provided with sealing ring 10, and the right-hand member for tube head of lighting a fire is provided with beam 11, and the center of beam is set
Have and the vent of combustion chamber 12；The left end of combustion chamber 7 is provided with Isolation net cover 13, and combustion chamber is separated into biography by Isolation net cover
Fiery room 70, aerogenesis room 71, vent are connected with passing fiery room, and starting mix is placed in biography fire interior, and gas generant composition in accordance is placed in aerogenesis room.
As shown in Figure 3 and Figure 4, pressurize partition 6 includes connection ring 60, the spacer 61 that is located in connection ring, connection ring with
It is welded to connect between shell, connection ring and spacer are integral type structure, and connection ring is made up with spacer of aluminium alloy, spacer
Side be provided with some radially distributed reduction grooves 62, gas generant composition in accordance produces a large amount of gases when burning, the air pressure wink in combustion chamber
Between raise, so as to break through spacer.Pressurize partition can also use another embodiment：Pressurize partition includes connection ring, set
Spacer in connection ring, is welded to connect between connection ring and shell, and spacer is plastic sheet, is produced when gas generant composition in accordance is burnt big
Calorimetric amount, so as to which spacer be melted, it is easy to gas to discharge.
With reference to accompanying drawing, principle of the present utility model is as follows：Light a fire tube head igniting, starting mix for gas generant composition in accordance provides heat after igniting
Amount, gas generant composition in accordance produce substantial amounts of gas, residue after being ignited by starting mix, the air pressure moment increase in combustion chamber, so as to by pressurize
Partition is broken through or melted, and gas is discharged after tubular filter screen at steam vent；On the one hand tubular filter screen can reduce gas temperature,
The surface area of another aspect tubular filter screen inwall is larger, and filter area is big, and filter screen is not easy to be blocked, while annular storage slag chute enters one
Step adds filter area, and the residue after gas generant composition in accordance burning is accumulated in storage slag chute, is not easily blocked filter screen, gas can quickly,
Stable enters in air bag, it is ensured that air bag is stable to deploy, and use is safer.
Claims (6)
1. a kind of small-sized pyrotechnic airbag gas generator of column, includes the shell of column, the left end of the shell is set
There is ignitron head, the right end sidewalls of the shell are provided with some steam vents, and the right-hand member end of the shell is provided with end cap, its feature
It is that the tubular filter screen for covering steam vent is provided with inside the right-hand member of the shell, the inwall of the tubular filter screen is provided with some rings
Shape stores up slag chute, and the left end of the tubular filter screen is provided with pressurize partition, and the position between the pressurize partition and igniting tube head is formed
Combustion chamber, starting mix and gas generant composition in accordance are provided with the combustion chamber.
2. the small-sized pyrotechnic airbag gas generator of a kind of column according to claim 1, it is characterized in that, it is described
The left end of igniting tube head is provided with sealing ring, and the right-hand member of the igniting tube head is provided with beam, the center of the beam provided with
The vent of combustion chamber.
3. the small-sized pyrotechnic airbag gas generator of a kind of column according to claim 2, it is characterized in that, it is described
The left end of combustion chamber is provided with Isolation net cover, and combustion chamber is separated into and passes fiery room, aerogenesis room, described vent by the Isolation net cover
Connected with described biography fire room, described starting mix is placed in biography fire interior, and described gas generant composition in accordance is placed in aerogenesis room.
4. the small-sized pyrotechnic airbag gas generator of a kind of column according to claim 1 or 2 or 3, its feature
It is that the pressurize partition includes connection ring, the spacer being located in connection ring, the company of welding between described connection ring and shell
Connect, described spacer is plastic sheet.
5. the small-sized pyrotechnic airbag gas generator of a kind of column according to claim 1 or 2 or 3, its feature
It is that the pressurize partition includes connection ring, the spacer being located in connection ring, the company of welding between described connection ring and shell
Connect, described connection ring and spacer are integral type structure, and described connection ring is made up with spacer of aluminium alloy, the isolation
The side of piece is provided with some radially distributed reduction grooves.
6. the small-sized pyrotechnic airbag gas generator of a kind of column according to claim 1 or 2 or 3, its feature
It is to be welded to connect between described end cap and shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720542196.6U CN206954171U (en) | 2017-05-16 | 2017-05-16 | A kind of small-sized pyrotechnic airbag gas generator of column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720542196.6U CN206954171U (en) | 2017-05-16 | 2017-05-16 | A kind of small-sized pyrotechnic airbag gas generator of column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206954171U true CN206954171U (en) | 2018-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720542196.6U Active CN206954171U (en) | 2017-05-16 | 2017-05-16 | A kind of small-sized pyrotechnic airbag gas generator of column |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108630470A (en) * | 2018-06-15 | 2018-10-09 | 厦门宏发汽车电子有限公司 | A kind of breather hole structure and its switch of switch |
| CN112109657A (en) * | 2020-08-13 | 2020-12-22 | 均胜汽车安全***(湖州)有限公司 | Low-cost high-output columnar pyrotechnic safety airbag gas generator |
| CN114559895A (en) * | 2022-02-24 | 2022-05-31 | 均胜汽车安全***（长兴）有限公司 | Small-size firework formula gas generator of multi-functional filter screen structure |
| WO2023174313A1 (en) * | 2022-03-15 | 2023-09-21 | 湖北航天化学技术研究所 | Integral ignition structure and compressed-gas-type fuel gas generator |
-
2017
- 2017-05-16 CN CN201720542196.6U patent/CN206954171U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108630470A (en) * | 2018-06-15 | 2018-10-09 | 厦门宏发汽车电子有限公司 | A kind of breather hole structure and its switch of switch |
| CN112109657A (en) * | 2020-08-13 | 2020-12-22 | 均胜汽车安全***(湖州)有限公司 | Low-cost high-output columnar pyrotechnic safety airbag gas generator |
| CN114559895A (en) * | 2022-02-24 | 2022-05-31 | 均胜汽车安全***（长兴）有限公司 | Small-size firework formula gas generator of multi-functional filter screen structure |
| CN114559895B (en) * | 2022-02-24 | 2024-02-27 | 均胜汽车安全***（长兴）有限公司 | Small pyrotechnic gas generator with multifunctional filter screen structure |
| WO2023174313A1 (en) * | 2022-03-15 | 2023-09-21 | 湖北航天化学技术研究所 | Integral ignition structure and compressed-gas-type fuel gas generator |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313103 Houshan Natural Village, Heping Town, Changxing County, Huzhou City, Zhejiang Province Patentee after: Junsheng Automobile Safety System (Huzhou) Co., Ltd. Address before: 313103 Houshan Natural Village, Heping Town, Changxing County, Huzhou City, Zhejiang Province Patentee before: Key (Huzhou) Automotive Safety Systems Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |