CN111409583A - Two-stage automobile safety airbag and use method thereof - Google Patents
Two-stage automobile safety airbag and use method thereof Download PDFInfo
- Publication number
- CN111409583A CN111409583A CN202010175471.1A CN202010175471A CN111409583A CN 111409583 A CN111409583 A CN 111409583A CN 202010175471 A CN202010175471 A CN 202010175471A CN 111409583 A CN111409583 A CN 111409583A
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- ignition
- gas
- airbag
- dual
- wall body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R2021/26029—Ignitors
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention relates to a two-stage automobile safety airbag which comprises an airbag and a bipolar generator, wherein the airbag and the bipolar generator are connected with each other, the bipolar generator comprises a wall body, and a first ignition piece and a second ignition piece which are respectively positioned at two ends of the wall body, the first ignition piece and the second ignition piece are ignited simultaneously, a gas cavity filled with compressed gas is formed between the first ignition piece and the second ignition piece, and the gas cavity is communicated with the airbag through a gas hole of the wall body. Compared with the prior art, the gas bag can accelerate the ignition efficiency and the gas expansion speed, reduce the unfolding time of the gas bag, enlarge the protection range, ensure that the gas bag can be unfolded more quickly and better when collision happens, and more effectively protect passengers.
Description
Technical Field
The invention relates to the field of automobile safety airbags, in particular to a double-stage automobile safety airbag and a using method thereof.
Background
In order to protect the occupants during a collision of the vehicle, side airbags are installed to protect the driver and the occupants in a side view. At present, the automobile side safety air bags all adopt single-stage side safety air bags, after collision signals are received, a controller sends ignition signals to explode the air bags, the air bags are unfolded to protect passengers, and the passengers are lightened or even avoided, and the existing automobile safety air bags are shown in figure 4 and comprise single-pole generators 3 and air bags 2.
The prior art is a monopole generator 3, namely only a monopole ignition element 11 is provided, as shown in fig. 5 and 6, the inflation time after ignition is longer, the capacity of the monopole generator 3 cannot be too much, otherwise the monopole generator cannot be unfolded before the vehicle body is deformed, and the safety protection range and the effect on drivers and passengers are limited due to the small gas volume and the small protection range. The space requirement from the interior to the air bag is higher during arrangement, the time from ignition to completion of inflation is longer, the volume of the air bag 2 is smaller, and the protection range is relatively smaller; occupant protection development is not easy to meet the target requirements.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a double-stage automobile safety air bag and a using method thereof.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a doublestage car air bag, includes interconnect's air pocket and bipolar generator, bipolar generator includes the wall body and is located the first ignition and the second ignition at wall body both ends respectively, first ignition and second ignition are igniteed simultaneously, are the gaseous chamber that is full of compressed gas between first ignition and the second ignition, and the gaseous chamber passes through the gas pocket and the air pocket intercommunication of wall body.
The number of the air holes is 18-24.
The outer side of the wall body on the opposite side of the air hole is fixed with a mounting piece and a mounting plate.
The mounting member and the mounting plate are welded to the wall body.
A limiting piece is fixed on the outer side of the wall body on the opposite side of the air hole.
The limiting piece is welded on the wall body.
The first ignition part and the second ignition part are both ignited by signals of the recognition ECU.
A method of using the dual stage automotive airbag, the method comprising:
step S1: the first ignition part and the second ignition part receive an ignition signal of the ECU and ignite simultaneously;
step S2: the compressed gas is combusted to produce a fill gas;
step S3: the filling gas is released to the airbag through the gas hole, and the airbag is inflated to separate the occupant from the vehicle body.
Compared with the prior art, the invention has the following advantages:
(1) the bipolar generator comprises a wall body, a first ignition part and a second ignition part, wherein the first ignition part and the second ignition part are respectively positioned at two ends of the wall body, and the first ignition part and the second ignition part are ignited simultaneously, so that the ignition efficiency can be increased, the gas expansion speed can be increased, the unfolding time of the air bag can be shortened, the protection range can be enlarged, the air bag can be unfolded faster and better when collision occurs, and passengers can be protected more effectively.
(2) The number of the air holes is 18-24, the number of the air holes is increased, and the generated filling gas can rapidly enter the air bag by matching with the first ignition piece and the second ignition piece, so that the unfolding time of the air bag is further shortened, and the influence of the deformation of a vehicle body on the unfolding is avoided.
(3) The number of the air holes is 18-24, the number of the air holes is increased, the air outlet speed of the generator is increased, the pressure of the generator is reduced, the risk of metal damage of the generator can be reduced, if the air outlet speed is doubled, the pressure of the generator on the metal can be reduced by half, and the risk of metal damage is reduced by 75%.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of a bipolar generator of the present invention;
FIG. 3 is a top view of a bipolar generator of the present invention;
FIG. 4 is a schematic diagram of a prior art configuration;
FIG. 5 is a front view of a prior art monopole generator;
FIG. 6 is a top view of a prior art monopole generator;
reference numerals:
1 is a bipolar generator; 2 is an air bag; 3 is a monopole generator; 4 is a mounting piece; 5 is a limiting piece; 6 is a mounting plate; 7 is a first ignition element; 8 is a second ignition piece; 9 is an air hole; 10 is a wall body; and 11 is a single-pole ignition element.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Examples
The embodiment provides a two-stage automobile safety airbag, as shown in fig. 1, comprising an airbag 2 and a bipolar generator 1 which are connected with each other, wherein the bipolar generator 1 comprises a wall 10 and a first ignition part 7 and a second ignition part 8 which are respectively positioned at two ends of the wall 10, the first ignition part 7 and the second ignition part 8 are ignited simultaneously, a gas cavity filled with compressed gas is arranged between the first ignition part 7 and the second ignition part 8, and the gas cavity is communicated with the airbag 2 through a gas hole 9 of the wall 10; the bipolar generator comprises a wall body, a first ignition part and a second ignition part, wherein the first ignition part and the second ignition part are respectively positioned at two ends of the wall body, and the first ignition part and the second ignition part are ignited simultaneously, so that the ignition efficiency can be increased, the gas expansion speed can be increased, the unfolding time of the air bag can be shortened, the protection range can be enlarged, the air bag can be unfolded faster and better when collision occurs, and passengers can be protected more effectively.
The number of the air holes 9 is 18-24; the quantity of the air holes is increased, and the generated filling gas can quickly enter the air bag by matching with the first ignition piece and the second ignition piece, so that the unfolding time of the air bag is further shortened, and the influence of the deformation of a vehicle body on the unfolding is avoided; and the generator speed of giving vent to anger accelerates, reduces the generator pressure, can reduce the damaged risk of generator metal, if the speed of giving vent to anger increases the one time, can reduce half to the pressure of generator metal, and the damaged risk of metal reduces 75%.
The embodiment also provides a use method of the double-stage automobile airbag, which comprises the following steps:
step S1: the first ignition part 7 and the second ignition part 8 receive an ignition signal of the ECU and perform ignition at the same time;
step S2: the compressed gas is combusted to produce a fill gas;
step S3: the filling gas is released to the bag 2 through the gas hole 9, and the bag 2 is inflated to separate the occupant from the vehicle body.
Specifically, the method comprises the following steps: the bipolar generator 1 is tubular, a gas cavity is formed by a wall body 10, a first ignition part 7 and a second ignition part 8 are arranged at two ends of the gas cavity, an inflation mechanism (an air hole 9) is arranged at one side of the gas cavity, a fixing mechanism (a mounting part 4 and a mounting plate 6) is welded at the other side of the gas cavity, and a limiting and protecting mechanism (a limiting part 5) is welded at the other side of the gas cavity; the first ignition part 7 and the second ignition part 8 are used for quickly igniting and releasing compressed gas; the gas bag 2 receives filling gas released by the bipolar generator 1 and rapidly expands at the side of an occupant according to a set mode, when collision happens, the first ignition piece 7 and the second ignition piece 8 determine ignition through signal judgment of an ECU, the expanded filling gas is rapidly filled into the gas bag 2 through the gas hole 9, the gas bag 2 rapidly expands, a vehicle body is separated from the occupant through the gas bag 2 after expansion, the occupant is prevented from being directly contacted with the vehicle body in the collision and installation process, the cushioning effect of the occupant is increased through the gas bag 2 to protect the occupant, and finally the injury of the occupant is reduced to achieve the protection effect.
Claims (8)
1. The utility model provides a doublestage car air bag, includes interconnect's air pocket (2) and bipolar generator (1), its characterized in that, bipolar generator (1) includes wall body (10) and is located first ignition (7) and second ignition (8) at wall body (10) both ends respectively, first ignition (7) and second ignition (8) ignite simultaneously, are the gaseous chamber of filling compressed gas between first ignition (7) and the second ignition (8), and the gaseous chamber passes through gas pocket (9) and the air pocket (2) intercommunication of wall body (10).
2. The dual-stage vehicle airbag according to claim 1, wherein the number of the air holes (9) is 18-24.
3. The dual-stage vehicle airbag according to claim 1, wherein the mounting member (4) and the mounting plate (6) are fixed to the outside of the wall (10) opposite to the air hole (9).
4. The dual-stage vehicle airbag of claim 3, wherein the mounting member (4) and the mounting plate (6) are welded to the wall (10).
5. The dual-stage vehicle airbag as claimed in claim 1, wherein the retainer (5) is fixed to the outside of the wall (10) on the opposite side of the vent (9).
6. The dual-stage vehicle airbag according to claim 4, wherein the retainer (5) is welded to the wall (10).
7. The dual-stage vehicle airbag according to claim 1, wherein the first ignition element (7) and the second ignition element (8) are ignited by signals identifying the ECU.
8. A method of using the dual stage vehicle airbag of any of claims 1-7, the method comprising:
step S1: the first ignition part (7) and the second ignition part (8) receive an ignition signal of the ECU and ignite simultaneously;
step S2: the compressed gas is combusted to produce a fill gas;
step S3: the filling gas is released to the airbag (2) through the gas hole (9), and the airbag (2) is inflated to separate the occupant from the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010175471.1A CN111409583A (en) | 2020-03-13 | 2020-03-13 | Two-stage automobile safety airbag and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010175471.1A CN111409583A (en) | 2020-03-13 | 2020-03-13 | Two-stage automobile safety airbag and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111409583A true CN111409583A (en) | 2020-07-14 |
Family
ID=71487575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010175471.1A Pending CN111409583A (en) | 2020-03-13 | 2020-03-13 | Two-stage automobile safety airbag and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111409583A (en) |
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2020
- 2020-03-13 CN CN202010175471.1A patent/CN111409583A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200714 |