CN2625216Y - Base construction of aerating device for automobile safe gasbag - Google Patents
Base construction of aerating device for automobile safe gasbag Download PDFInfo
- Publication number
- CN2625216Y CN2625216Y CNU032564589U CN03256458U CN2625216Y CN 2625216 Y CN2625216 Y CN 2625216Y CN U032564589 U CNU032564589 U CN U032564589U CN 03256458 U CN03256458 U CN 03256458U CN 2625216 Y CN2625216 Y CN 2625216Y
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- CN
- China
- Prior art keywords
- combustion chamber
- combustion
- face
- base construction
- air bag
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- Expired - Fee Related
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Abstract
A pedestal structure for an air charging unit of vehicle air bags comprises a wholly forged hollow combustion part, a connector, a large first combustion chamber and a small combustion chamber surrounded into the combustion part, a plurality of lateral holes through the first combustion chamber and around an external wall of the combustion part and an igniter arranged at a joint between the first and the second combustion chamber. As the pedestal is applied to an air charging unit, the air bag is closed by a top surface of the first combustion chamber. Here, a top surface of the second combustion chamber is open to make air in both combustion chambers respectively jet along lateral surfaces and top surfaces, thus greatly reducing air interflow interference between both combustion chambers and providing more authentic sectional utilization of two combustion chambers. The utility model can improve operating safety.
Description
Technical field
The utility model relates to a kind of vehicle body fittings, relates in particular to a kind of base construction that improves the inflator for car safety air bag of safety in utilization.
Background technology
General inflator for car safety air bag is for being fit to the difference of human body weight, and impulse force that is produced and holding capacity difference are provided with two combustion chambers and develop at pedestal, can be the inflator for car safety air bag of different inflated conditions.
Existing inflator for car safety air bag, for example: be installed on the bearing circle of operator's saddle, extremely shown in Figure 5 as Fig. 3, it is to be arranged with a hole 51 at a bearing circle 50, be provided with a pedestal 52, a tray 53, a gas filled device 60, a tray ring 54, a gasbag 55 and a cover plate 56 respectively in regular turn, be fixed on the bearing circle 50 for this cover plate 56, and each above-mentioned assembly is positioned this hole 51.This gas filled device 60 comprises a pedestal 61, this pedestal 61 is provided with the joint portion 63 that a burning portion 62 and is located at these burning portion 62 end faces, these burning portion 62 inner area are separated with small one and large one first combustion chamber 64 and second combustion chamber 65, other runs through this joint portion 63 and is communicated with this first combustion chamber 64 and second combustion chamber 65, be respectively equipped with a firing unit 66,67, two firing units 66, form one in 67 respectively and strengthen coyote hole 68,69, and two combustion chambers 64,65 with firing unit 66, fill between 67 and be provided with gas producing agent, two firing units 66,67 are connected to a sensing module 57, and at sealing two combustion chambers 64,65 are provided with two pads 70, one pad 71 and a capping 72, and two combustion chambers 64,65 run through this pad 70 respectively and capping 72 is provided with a deflation hole 73, be provided with an inner housing 74 and cover at this capping 72, these inner housing 74 all sides and 72 of cappings are formed with the gap, can be communicated with this inner housing 74 for this deflation hole 73, these inner housing 74 peripheries are provided with a body skin 75 that coats to these pedestal 61 joint portions 63 peripheries, these body skin 75 peripheral rings are provided with the air-filled pore 76 of annular arrangement, are provided with a filter screen 77 between the side wall surface for this body skin 75 and inner housing 74.
During use, as Fig. 3 and shown in Figure 5, after automobile is collided, this sensing module 57 transfers to firing unit 66 with signal, 67, make this firing unit 66,67 trigger this strengthens coyote hole 68,69, this gas producing agent that ignites again, and according to different users's body weight, and produce different gaseous tensions, for example: during user's heavyweight vehicle, two firing units 66 then, 67 trigger this gas producing agent simultaneously, make the gas producing agent after the blast, produce high pressure gas and know from experience and pass two combustion chambers 64 through this pad 71,65 deflation hole 73, and gap along 74 of this capping 72 and inner housings, flow to filter screen, discharge through air-filled pore 76, gasbag 55 fast aeration; When user's body weight is light, then only ignite first combustion chamber 64; When body weight circle is between heavy and light, then ignite first combustion chamber 64 earlier, postpone to ignite second combustion chamber 65 again after 0.02 second.
But, the base construction of existing inflator for car safety air bag in the use, because the high pressure gas of two combustion chambers are discharged by end face, therefore for two sectional type or when only igniting this first combustion chamber, because the high pressure gas of first combustion chamber are discharged by end face, and deflation hole adjacent to the second combustion chamber end face, cause high pressure gas to be back in this second combustion chamber easily, cause the gas producing agent false triggering in this second combustion chamber, cause the gas producing agent in second combustion chamber to be ignited, two combustion chambers are ignited simultaneously, not only lose the gas filed effect of two sectional type, especially for the light user of body weight, the power that causes excessive shock is caused danger during use easily.
The utility model content
For the base construction that overcomes existing inflator for car safety air bag on reality is used, still the not good and dangerous high shortcoming of use of result of use that has two sectional type, the utility model provides a kind of base construction of improved inflator for car safety air bag, it can reduce by two combustion chamber phase mutual interference, increase the certainty that two sectional type is ignited, improve result of use and safety.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of base construction of inflator for car safety air bag comprises the pedestal that one is forged, and this pedestal is provided with the burning portion of a hollow form, and this burning portion inner area is every being provided with one first combustion chamber and one second combustion chamber; It is characterized in that described burning portion is provided with the side opening that several run through this first combustion chamber in the periphery annular arrangement.
The base construction of aforesaid inflator for car safety air bag, wherein burning portion is that the face that encloses of an annular is arranged with the less ring-type of a diameter in internal side wall and encloses face for a short time, forming than semi-moon shaped first combustion chamber of large space, and second combustion chamber that encloses less space in the face for a short time.
The base construction of aforesaid inflator for car safety air bag, wherein the pedestal one is forged to connect in an end face of this burning portion and is stretched sealing and be provided with a joint portion, this joint portion is run through and is provided with two firing units that are placed in respectively in two combustion chambers, forms one in two firing units respectively and strengthens coyote hole.
The base construction of aforesaid inflator for car safety air bag, wherein first combustion chamber and second combustion chamber are respectively equipped with a cushion rubber and a supporting blade at the end opening in addition away from this joint portion, this supporting blade runs through with respect to this second combustion chamber and is provided with a perforation, this burning portion one end face is provided with a pad and a capping that is covered with this cushion rubber and supporting blade in regular turn, filling is provided with gas producing agent between this pad and two combustion chambers, this capping this perforation relatively is provided with a deflation hole, this burning portion periphery frame is provided with an inner housing, this burning end surface periphery and circumferential position, form a gap of flowing out for air respectively and between this capping, this inner housing periphery is provided with one and even extends the body skin that is fixed in this joint portion, be provided with a filter screen that is communicated with this gap between this body skin and inner housing, this body skin periphery ring is provided with several can charge into air-filled pore in gasbag.
The utility model runs through the side opening that is provided with annular arrangement by first combustion chamber in sidewall, and when being implemented on gas filled device, the end face of this first combustion chamber is closed state, and the end face of second combustion chamber is open state, for the side opening of first combustion chamber and the exhaust position of second combustion chamber is different directions and position, reach and significantly reduce by two combustion chambers when igniting, phase mutual interference between two strands of high pressure gas, not only increase charge efficiency, and when two sectional type is ignited or is only ignited first combustion chamber, can reduce the false triggering of second combustion chamber,, improve the safety of using to have the function that two sectional type or single combustion chamber are ignited really.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a stereoscopic scheme drawing of the present utility model.
Fig. 2 is the assembled sectional view that the utility model is applied to gas filled device.
Fig. 3 is general safe automobile air bag single-piece assembly exploded perspective scheme drawing.
Fig. 4 is existing stereoscopic scheme drawing.
Fig. 5 is the assembled sectional view of existing gas filled device.
The number in the figure explanation:
10,61 pedestals, 11,62 burning portions
12,63 joint portions
13,64 first combustion chambers
14,65 second combustion chambers
15 side openings
16,17,66,67 firing units
18,19,68,69 strengthen coyote hole
20 cushion rubbers, 21 supporting blades
22 perforation, 23,71 pads
24,72 cappings, 25,73 deflation holes
30,74 inner housings, 31 gaps
40,75 body skiies, 41,77 filter screens
42,76 air-filled pores
50 bearing circle, 51 holes
52 pedestals, 53 trays
54 tray rings, 55 gasbags
56 cover plates, 57 sensing modules
60 gas filled devices, 70 pads
The specific embodiment
As shown in Figures 1 and 2, the base construction of the utility model inflator for car safety air bag, it is the pedestal 10 that one is forged, the burning portion 11, one that this pedestal 10 comprises a hollow form is closed in the joint portion 12 of these burning portion 11 1 end faces, the face that encloses that this burning portion 11 is an annular is arranged with the less ring-type of a diameter in internal side wall and encloses face for a short time, to form one than semi-moon shaped first combustion chamber 13 of large space, and one enclosing second combustion chamber 14 in less space in the face for a short time, and these burning portion 11 periphery annular arrangements are provided with several side openings that runs through this first combustion chamber 13 15.This joint portion 12 is run through to be provided with and is formed with one respectively in two firing unit 16,17, two firing units 16,17 that are placed in respectively in two combustion chambers 13,14 and strengthens coyote hole 18,19.By above-mentioned structure, to finish the base construction of the utility model inflator for car safety air bag.
Base construction of the present utility model is applied to this gas filled device, as shown in Figure 2, this first combustion chamber 13 and second combustion chamber 14 are respectively equipped with a cushion rubber 20 and a supporting blade 21 at the in addition end opening away from this joint portion 12 respectively, and this supporting blade 21 runs through with respect to this second combustion chamber 14 and is provided with a perforation 22.These burning portion 11 1 end faces are provided with a pad 23 and a capping 24 that is covered with this cushion rubber 20 and supporting blade 21 in regular turn, filling is provided with the gas producing agent (not shown) between this pad 23 and two combustion chambers 24, these capping 24 relative these perforation 22 are provided with a deflation hole 25, these burning portion 11 periphery frames are provided with an inner housing 30, these burning portion 11 end face periphery and circumferential position, respectively and 24 of this cappings form a gap 31 of flowing out for air.These inner housing 30 peripheries are provided with one and even extend the body skin 40 that is fixed in this joint portion 12, make 30 of this body skin 40 and inner housings be provided with a filter screen 41 that is communicated with this gap 31, these body skin 40 periphery rings are provided with several air-filled pores that can charge into the gasbag (not shown) 42.
When the user of heavyweight vehicle uses gas filled device, as shown in Figure 2, two firing units 16,17 trigger two simultaneously and strengthen coyote hole 18,19, gas producing agent in two combustion chambers 13,14 again ignites, make the gas producing agent blast produce high pressure gas, and the high pressure gas of this first combustion chamber 13 is known from experience by 15 discharges of this side opening, and the high pressure gas of this second combustion chamber 14 are given off by perforation 22, deflation hole 25, and drain into filter screen 41 by gap 31 respectively, by this air-filled pore 42 the gasbag fast aeration is filled up; During high pressure gas, form the exhaust mode of different directions in discharging for two combustion chambers 13,14, reduce high pressure gas, impact and flow-disturbing between two strands of high pressure gas at first explosion time.
In addition, when middleweight user uses, the gas producing agent of this first combustion chamber 13 is ignited, the gas of igniting in this first combustion chamber 13 is discharged along each side opening 15, each side opening 15 and deflation hole 25 non-conterminous and different directions, and can not disturb and influence gas producing agent in this second combustion chamber 14, and this first combustion chamber 13 is after about 0.02 second of blast, relend by the gas producing agent in this firing unit 17 triggerings second combustion chamber 14, with the gas filed strength of buffer air bag bag.
For the light user of body weight, then only trigger first combustion chamber 13, and it is as above-mentioned, gases in this first combustion chamber 13 can not disturb and this second combustion chamber 14 of false triggering in gas producing agent, to guarantee having only this first combustion chamber 13 to ignite, suitable inflation effect is provided, and to the different users, produce different inflation effects, improve the safety of using.
Claims (4)
1, a kind of base construction of inflator for car safety air bag comprises the pedestal that one is forged, and this pedestal is provided with the burning portion of a hollow form, and this burning portion inner area is every being provided with one first combustion chamber and one second combustion chamber; It is characterized in that described burning portion is provided with the side opening that several run through this first combustion chamber in the periphery annular arrangement.
2, the base construction of inflator for car safety air bag according to claim 1, it is characterized in that described burning portion is that the face that encloses of an annular is arranged with the less ring-type of a diameter in internal side wall and encloses face for a short time, forming than semi-moon shaped first combustion chamber of large space, and second combustion chamber that encloses less space in the face for a short time.
3, the base construction of inflator for car safety air bag according to claim 1, it is characterized in that described pedestal one forges to connect in an end face of this burning portion stretches sealing and is provided with a joint portion, this joint portion is run through and is provided with two firing units that are placed in respectively in two combustion chambers, forms one in two firing units respectively and strengthens coyote hole.
4, the base construction of inflator for car safety air bag according to claim 1, it is characterized in that described first combustion chamber and second combustion chamber are respectively equipped with a cushion rubber and a supporting blade at the end opening in addition away from this joint portion, this supporting blade runs through with respect to this second combustion chamber and is provided with a perforation, this burning portion one end face is provided with a pad and a capping that is covered with this cushion rubber and supporting blade in regular turn, filling is provided with gas producing agent between this pad and two combustion chambers, this capping this perforation relatively is provided with a deflation hole, this burning portion periphery frame is provided with an inner housing, this burning end surface periphery and circumferential position, form a gap of flowing out for air respectively and between this capping, this inner housing periphery is provided with one and even extends the body skin that is fixed in this joint portion, be provided with a filter screen that is communicated with this gap between this body skin and inner housing, this body skin periphery ring is provided with several can charge into air-filled pore in gasbag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032564589U CN2625216Y (en) | 2003-04-23 | 2003-04-23 | Base construction of aerating device for automobile safe gasbag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032564589U CN2625216Y (en) | 2003-04-23 | 2003-04-23 | Base construction of aerating device for automobile safe gasbag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2625216Y true CN2625216Y (en) | 2004-07-14 |
Family
ID=34253848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032564589U Expired - Fee Related CN2625216Y (en) | 2003-04-23 | 2003-04-23 | Base construction of aerating device for automobile safe gasbag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2625216Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106627471A (en) * | 2016-11-29 | 2017-05-10 | 宋建毅 | Air generating device for automobile safety air bag |
| CN111055803A (en) * | 2018-10-16 | 2020-04-24 | 元翎精密工业股份有限公司 | Safety air bag gas generating device with flow guide ring |
| DE112017002566B4 (en) | 2016-05-18 | 2023-12-14 | Daicel Corporation | Gas generator with an outer casing, an igniter chamber housing, and a cover element covering a bottom surface of the igniter chamber housing |
-
2003
- 2003-04-23 CN CNU032564589U patent/CN2625216Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112017002566B4 (en) | 2016-05-18 | 2023-12-14 | Daicel Corporation | Gas generator with an outer casing, an igniter chamber housing, and a cover element covering a bottom surface of the igniter chamber housing |
| CN106627471A (en) * | 2016-11-29 | 2017-05-10 | 宋建毅 | Air generating device for automobile safety air bag |
| CN111055803A (en) * | 2018-10-16 | 2020-04-24 | 元翎精密工业股份有限公司 | Safety air bag gas generating device with flow guide ring |
| CN111055803B (en) * | 2018-10-16 | 2021-06-04 | 元翎精密工业股份有限公司 | Safety air bag gas generating device with flow guide ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |