CN2502951Y - Air bag inflator - Google Patents
Air bag inflator Download PDFInfo
- Publication number
- CN2502951Y CN2502951Y CN 01250525 CN01250525U CN2502951Y CN 2502951 Y CN2502951 Y CN 2502951Y CN 01250525 CN01250525 CN 01250525 CN 01250525 U CN01250525 U CN 01250525U CN 2502951 Y CN2502951 Y CN 2502951Y
- Authority
- CN
- China
- Prior art keywords
- gland
- airbag
- cylinder
- shell
- ignition tube
- 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 - Fee Related
Links
- 210000004907 gland Anatomy 0.000 claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000010892 electric spark Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 19
- 239000002360 explosive Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Landscapes
- Air Bags (AREA)
Abstract
The utility model discloses an air bag inflator pump, the shell, the outer cover and the gland of the pump are sealed to form an annular combustion chamber filled with tablets, a plurality of layers of filter screens are arranged around the combustion chamber, two rows of fire transmission holes are arranged on the cylinder of the gland, and an ignition tube which is fixedly connected with a socket and is fixed by a connecting piece is arranged in the cylinder. When the automobile collides, the electronic control device of the automobile passive safety system sends out an instruction to the ignition tube to generate electric sparks, the sparks ignite the tablets through the fire transfer holes to generate gas, and the gas is filtered by the filter screen and then is transmitted to the air bag connected with the outer cover, so that the air bag is inflated to protect the head of a driver.
Description
One, technical field:
The utility model relates to the airbag inflation pump in a kind of automobile passive safety system.
Two, background technology:
The airbag inflation pump is the core component that plays a significant role in the whole automobile passive safety system; when automobile bumps; the electronic control package of automobile passive safety system sends ignition tube that instruction makes the airbag inflation pump and produces electro spark and light tablet in the pump, produces a large amount of gases behind the tablet explosive combustion and is full of airbag by filtering net the people is played the safety guard-safeguard effect.So whether airbag inflation pump structure is reasonable, the quality quality directly influences the work effect of whole safety system.Before the utility model proposes, applied airbag inflation pump have for being welded to connect, welding makes the part distortion, and is poorly sealed during installation, and gas leak phenomenon is arranged.Because the flash hole in the ignition tube outside is on the low side less than normal, causes fire transmission rate slower, make the interior medicine grain of pump economic combustion generation capacity gas at short notice.Because the filtering net number of plies in the airbag inflation pump is less, causes gas filtration not thorough, the gas that charges in the airbag has dust and peculiar smell, contaminated environment.Because what the lead-in wire of the ignition tube of pump adopted is the screw connection mode, jolting in automotive operation makes its broken string easily, makes the total system cisco unity malfunction.
Three, summary of the invention:
Technical problem to be solved in the utility model provides a kind of good seal, and fire transmission rate is fast, and is free from environmental pollution, is difficult for the airbag inflation pump of broken string.
Solving the problems of the technologies described above the concrete technical scheme of taking is: the airbag inflation pump is cast into to be connected with on the shell of basin shape and has the cylindrical housing that burning gases can be passed to the through hole of airbag, be the gland of cylinder in the middle of the outer cover back seal is connected with, but laterally have the flash hole of two row's conduct electricity sparks on the cylinder of gland; Flash hole leads to the combustion chamber that is filled with tablet that is surrounded by shell, outer cover, gland, has four floor can filter the cylinder leaching net of the gas of tablet explosive combustion generation around this chamber; Be fixed with the ignition tube of the produced electro spark that can be solidified as a whole in the cylinder of gland with the plug bonded assembly socket of the electronic control package of automobile passive safety system with socket by connector; Be connected with on the outer of shell and can expand into airbag and the airbag cover that ellipse is protected people's head by receiver gases.
Compared with prior art the beneficial effects of the utility model one are row's number and the numbers that has increased flash hole on the cylinder of gland, thereby have strengthened the fire transmission rate of ignition tube, and the gas that makes pump produce capacity is at short notice supplied with airbag; The 2nd, increased the number of plies of filtering net, it is free from environmental pollution that gas is fully filtered; The 3rd, set up being connected of socket and control setup, ignition tube and socket be fixedly connected, prevented that effectively jolting in automotive operation from making ignition tube and control setup broken string, guaranteed the total system normal operation; The 4th, removed welding process from, improved the leak tightness of associated part.
Four, description of drawings:
Fig. 1 is the main cutaway view of the utility model airbag inflation pump.
Fig. 2 is the left view that removes airbag and bag cover of the utility model airbag inflation pump.
Fig. 3 is the bag cover birds-eye view of the utility model airbag inflation pump.
Five, the specific embodiment:
In each accompanying drawing, the shell 1 of the utility model airbag inflation pump and gland 2 adopt the magnesium aluminum alloy die cast; Outer cover 3 usefulness stainless steel sheets are made into tubular, but corresponding site has the through hole 13 of conduction gas on its barrel.The centre of gland 2 is the approximate T type of its section of cylindrical shape, but laterally has the flash hole 16 of two row's conduct electricity sparks on this cylinder, and the row of going up of this flash hole 16 is transverse holes, and following row is downward-sloping inclined hole; The purpose in this double hole is to increase flash hole 16 quantity to pass fiery position with changing, and the electro spark that ignition tube 9 is produced conducts rapidly gives combustion chamber 6, makes tablet 4 economic combustions produce a large amount of gases.Outer cover 3 is connected on the basin shape shell 1, and gland 2 is sealedly connected on the outer cover 3, and shell 1, gland 2, outer cover 3 surround sealed combustion chamber 6, is filled with the tablet 4 that produces gas in the combustion chamber 6; There are four layers can filter the cylinder filtering net between lid and the shell of being pressed on that tablet 4 explosive combustions produce gas around the combustion chamber 6.Have certain intervals between every layer of this filtering net, its net be arranged as the two-layer wire net of manufacturing for stainless wire mesh 5 in innermost layer and outside, the fleece 7 of interior several second layers for manufacturing with Blanket.This four-layer network particularly fleece 7 fully the impurity in the filtering gas avoid contaminated environment.The tail end of ignition tube 9 is fixed with the plug bonded assembly socket 8 with the electronic control package of automobile passive safety system, socket 8 is fixed on the connector 15, and the connector 15 of its tail end of relevant position in the cylinder of ignition tube 9 insertion glands 2 is threaded in the bottom of shell 1.Be connected with by rivet 10 on the outer of shell 1 and can receiver gases make it expand into ellipse to protect people's the airbag 12 of head and the airbag cover 11 of splendid attire airbag 12, have airbag to launch door 14 on the upper surface of airbag cover 11.
This airbag inflation pump is installed on the vehicle steering, and socket 8 places insert the plug of the electronic control package of automobile passive safety system, makes its controlled device control after the energising.When automobile bumps; the electronic control package of automobile passive safety system sends instruction makes ignition tube produce tablet in the electro spark ignition combustion chamber; make its explosive combustion produce a large amount of gas; gas after filtering by four layers of filtering net charges into airbag from the through hole of outer cover; airbag is heaved under the impact of high pressure gas and is broken through airbag expansion door; in face of the driver, form an oval air cushion, protect driver's head to avoid injury.
Claims (3)
1, a kind of airbag inflation pump, this pump pressure is cast on the shell (1) of basin shape and is connected with the cylindrical housing (3) that has the through hole (13) that gas can be passed to airbag (12), in the middle of being connected with, outer cover (3) back seal is the gland of cylinder (2), the flash hole (16) that the conduct electricity spark is arranged on the cylinder of gland (2), flash hole (16) leads to the combustion chamber that is filled with tablet (4) (6) that is surrounded by shell (1), outer cover (3), gland (2), and the cylindrical shape filtering net is arranged around this chamber; The interior ignition tube (9) that leans on connector (15) to be fixed with socket (8) and can produce electro spark of the cylinder of gland (2); Be connected with airbag (12) and airbag cover (11) on the outer of shell (1); It is characterized in that: described gland (2) but cylinder on laterally have the flash hole (16) of two row's conduct electricity sparks; Described cylindrical shape filtering net is four layers; Socket (8) and ignition tube (9) are solidified as a whole and are fixed on the connector (15).
2, airbag inflation pump as claimed in claim 1 is characterized in that: the row of going up of described two row's flash holes (16) is transverse holes, and following row is downward-sloping inclined hole.
3, airbag inflation pump as claimed in claim 1 is characterized in that: described cylindrical shape is filtered between stratum reticulare and the layer certain intervals, and interior several second layers are fleece (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250525 CN2502951Y (en) | 2001-08-29 | 2001-08-29 | Air bag inflator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250525 CN2502951Y (en) | 2001-08-29 | 2001-08-29 | Air bag inflator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2502951Y true CN2502951Y (en) | 2002-07-31 |
Family
ID=33660660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01250525 Expired - Fee Related CN2502951Y (en) | 2001-08-29 | 2001-08-29 | Air bag inflator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2502951Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337859C (en) * | 2004-05-21 | 2007-09-19 | 德尔菲技术公司 | Apparatus and method for providing combustible gas inflator |
-
2001
- 2001-08-29 CN CN 01250525 patent/CN2502951Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337859C (en) * | 2004-05-21 | 2007-09-19 | 德尔菲技术公司 | Apparatus and method for providing combustible gas inflator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Huludao Zundi Industrial Co., Ltd. Document name: Notice of conformity |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |