CN102398562B - The aerating device of automobile safety air curtain - Google Patents
The aerating device of automobile safety air curtain Download PDFInfo
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- CN102398562B CN102398562B CN201010283598.1A CN201010283598A CN102398562B CN 102398562 B CN102398562 B CN 102398562B CN 201010283598 A CN201010283598 A CN 201010283598A CN 102398562 B CN102398562 B CN 102398562B
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- injection section
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- generating unit
- guiding portion
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Abstract
A kind of aerating device of automobile safety air curtain, there is the injection section being axially connected with gas generating unit and the air guiding portion with injection section gas communication, described aerating device is by the barrel shape body of a textile material cincture, described injection section is the radial direction upper end of described textile material barrel shape body axially extended part, described air guiding portion is the radial direction lower end of described textile material barrel shape body axially extended part, and the described textile material barrel shape body portion between described injection section and described air guiding portion forms gas passage will the two gas communication.Apparatus of the present invention simple in construction, easy to process, simultaneously injection section with between air guiding portion by the smooth and easy connection of structure of self, it is to avoid employing sewing thread fixed work order, and the potential destroyed possibility being subsequently formed；And air guiding portion uses flexible fabric to also allow for adjusting the area of QI KOU, and then adjust tolerance and form the regulation and control of the many sizes to air bag, to meet various inflation requirement.
Description
Technical field
The present invention inflates about one, gas-guiding structure, espespecially for protecting the inflation of inflatable safety gas curtain of occupant's head, gas-guiding structure when there is side collision.
Background technology
Automobile side airbag gas curtain provides the protection when there is side collision for occupant, especially for the protection of head.Gas curtain of the prior art is longitudinally arranged more than car door along car door; simultaneously in order in time soft air bag be inflated and make it from up to down launch to provide protection; gas generating unit for pneumatophore inflation is accomplished by fixed and arranged in the height that it is of a relatively high, as being arranged in middle part or the rear portion of car door.
Owing to gas curtain has longitudinally longer length, the gas outlet of gas generating unit can not synchronize to be inflated the air bag in gas curtain in the vertical.Thus, it is accomplished by therebetween providing aerating device to realize transition.Existing aerating device has injection section and air guiding portion, and injection section axially receives gas and sends out device upper, and injection section is connected with air guiding portion by gap simultaneously, such as German patent application: the technical characteristic disclosed in DE102006040983A1.
But structure is relative complex in prior art, needing to carry out more sewing operation, part sewing thread is owing to being in the path of gas release simultaneously, thus can be by gas impact failure power.Further, since the increase in sewing face also results in the most smooth and easy of gas release.
Summary of the invention
For solving above-mentioned technological deficiency, the present invention provides the aerating device of a kind of novel automobile safety air curtain, and its technical purpose to be reached is: can provide the instantaneous protection gas of enough capacity the most smoothly for air bag；Can have simple structure and manufacturing cost；Bear the impulsive force of the produced gas of gas generating unit simultaneously.
For this; the present invention provides the aerating device of a kind of automobile safety air curtain; inflatable bladders that described gas curtain includes providing lateral protection and for the gas generating unit of described airbag aeration; described aerating device has: the injection section being axially connected with described gas generating unit; described injection section includes that the outer layer being made up of textile material, the sewing of described outer layer are fixed on described air bag；With with described injection section gas communication described charge air conditioning is entered along longitudinal guide described air bag air guiding portion, wherein: described aerating device is by the barrel shape body of a textile material cincture, described injection section is the radial direction upper end of described textile material barrel shape body axially extended part, described air guiding portion is the radial direction lower end of described textile material barrel shape body axially extended part, and the described textile material barrel shape body portion between described injection section and described air guiding portion forms gas passage will the two gas communication.
Simultaneously as improvement, described air guiding portion has the first gas outlet and the second gas outlet at axial two ends.As optimization, the sidewall of described air guiding portion has at least one the 3rd gas outlet.
Have employed in the present invention by single fabric loop turn to flexible gas-filled device, its simple in construction, easy to process.Simultaneously injection section with between air guiding portion by self the smooth and easy connection of structure, it is to avoid employing sewing thread fixed work order, and the potential destroyed possibility being subsequently formed；And air guiding portion uses flexible fabric rather than metal material to make, it is processed and fixing convenient, flexible fabric also allows for adjusting the area of first, second and third gas outlet simultaneously, and then adjusts tolerance and form the regulation and control of the many sizes to air bag, to meet various inflation requirement.
Accompanying drawing explanation
Fig. 1 is shown that the scheme of installation of gas curtain of the present invention；
Fig. 2 is shown that the schematic diagram that aerating device of the present invention is opened；
Fig. 3 A is shown that the schematic diagram after aerating device of the present invention sewing；
Fig. 3 B is shown that the aerating device of the present invention connection diagram with gas generating unit；
Fig. 4 is shown that in Fig. 2 the cross-sectional schematic along A-A；
Fig. 5 is shown that the cross-sectional schematic in Fig. 3 B along B-B.
Detailed description of the invention
Fig. 1 is shown that the installation diagram of gas curtain of the present invention; a kind of aerating device 20 of automobile safety air curtain 1; described gas curtain 1 includes the inflatable bladders 10 providing lateral protection; 10 ' and be the gas generating unit 11 of described airbag aeration; described aerating device 20 has: the injection section 12 being axially connected with described gas generating unit 11; described injection section 12 includes that the outer layer 17 being made up of textile material, the sewing of described outer layer 17 are fixed on described air bag；With with described injection section 12 gas communication described charge air conditioning is entered along longitudinal guide described air bag air guiding portion 13, wherein: described aerating device 20 is by the barrel shape body of a textile material cincture, described injection section 12 is the radial direction upper end of described textile material barrel shape body axially extended part, described air guiding portion 13 is the radial direction lower end of described textile material barrel shape body axially extended part, and the described textile material barrel shape body portion between described injection section 12 and described air guiding portion 13 forms gas passage will the two gas communication.
Fig. 2 is the schematic diagram that the aerating device in the present invention is opened, it is piece of fabric material by its body shown in figure, Fig. 3 A be above-mentioned fabrics material through around barrel shape body, Fig. 3 B be through around the schematic diagram that axially connects with gas generating unit 11 of the aerating device 20 of barrel shape body.From the gas of gas generating unit 11 after injection section 12 along between described injection section 12 and described air guiding portion 13 by described textile material barrel shape body portion formed gas passage enter air guiding portion 13, and be described air bag 10,10 ' inflate.
In the present invention, due to use by single fabric loop turn to flexible gas-filled device, its simple in construction, easy to process.Simultaneously injection section with between air guiding portion by self the smooth and easy connection of structure, it is to avoid employing sewing thread fixed work order, and the potential destroyed possibility being subsequently formed；And air guiding portion uses flexible fabric rather than metal material to make, it is processed and fixing convenient.
As shown in Fig. 1, Fig. 3 A and 3B, the air guiding portion 13 of shown aerating device 20, for extending along longitudinal extension, think the airbag aeration being longitudinally arranged.Air guiding portion 13 has the first gas outlet B and the second gas outlet C at axial two ends simultaneously, owing to this aerating device 20 is made for textile material, therefore, first gas outlet B and the gas outlet shape of the second gas outlet C and area can be easier to change, the most just can improve the adaptability of air curtain device, meet the different automobile types inflation requirement to air bag, such as, be gone out the ratio of open area by setting, i.e. B: C, to obtain different gas output.
As further improving, the sidewall of described air guiding portion has at least one the 3rd gas outlet A.Gas outlet A herein has above-mentioned first gas outlet B and the feature of the second gas outlet C variable area equally, simultaneously because it occupy on the sidewall of air guiding portion, therefore can realize the aerification function to diverse location, the adaptability of gas curtain more improves, such as, be inflated the central region of gas curtain.Certainly, adjust the area of three gas outlets, i.e. A: B: C, also realize more inflating requirement by different for acquisition gas outputs.
Wherein as preferably, described gas generating unit 11 is pyrotechnic gas generating unit.Above-mentioned improvement is for the big quality of gas curtain employing, the defect of large-sized hybrid gas generating unit in prior art.Hybrid gas generating unit uses compressed gas form to store gas, and its compression process is complicated, device case is complicated, the quality of the whole device after molding compared with big, overall dimensions cost big, overall is higher, the release process of compressed gas is slower simultaneously.In the case of conventional gas capacity, the quality of internal compressed gas is 100 grams, and its gross mass is 600 to 700 grams.And scheme provided by the present invention uses pyrotechnic gas generating unit, this device uses the flaky material of solid to provide gas, the solid sheet material that chemical change occurs can produce substantial amounts of gas, and himself memory space requires minimum, this feature converted to gas by solid-state, making it have less volume solid situation is little, and have bigger volume under gaseous state, this salient feature is that prior art is not caned.Under the requirement of above-mentioned identical gas flow, solid material needs 25 grams, and gross mass is about 250 grams, and overall dimensions and weight are greatly reduced simultaneously, it is simple to the installation in later stage is fixed.The aeration quantity that this use light-duty, undersized gas generating unit will meet automobile mounting arrangement, fixing and offer is sufficient.
As it is shown in figure 1, pyrotechnic gas generating unit 11 axially inserts in injection section 12, the gas outlet of pyrotechnic gas generating unit 11 be circumferential ring around layout, produced gas will circumferentially discharge.Simultaneously as in figure 2 it is shown, have the internal layer 14 around described gas generating unit 11 gas outlet at the most described injection section 12.Preferably, as shown in Fig. 1 to Fig. 3 B, described internal layer 14 is around the gas outlet, middle and upper part of described gas generating unit 11, and gas outlet, its underpart is passed through described air guiding portion 13 with described gas passage (as shown by arrows) is connected.During inflation, from the gas of the top half gas outlet of pyrotechnic gas generating unit 11 release upwards by the internal layer of impact injection section 12, flowing underneath will be turned to owing to being limited, flow the most directly down from the gas of gas outlet, the latter half release, the gas of all releases will enter air guiding portion 13 by gas passage, and distributed into aerating gasbag 10 by air guiding portion 13,10 '.Owing to above-mentioned internal layer 14 guides and protects, i.e. including the structure of at least two-layer, the destructive power of injection section 12 is lowered by gas produced by pyrotechnic gas generating unit 11, and guiding gas enters air guiding portion 13.
Preferably, as it is shown in figure 5, described internal layer 14 includes the contact layer 16 with the contact of described pyrotechnic gas generating unit 11, the intermediate layer 15 between described contact layer 16 and described injection section outer layer 17.The most just at the gas outlet of the top half of pyrotechnic gas generating unit 11, the structure of three layers is defined, naturally it is also possible to be the structure of multilamellar.Wherein, described intermediate layer 15 can be thermoplastic elastic material, textile material or metal material, preferably can use the synthetic material of PP material and rubber, and described contact layer 16 is textile material, i.e. defines outer layer 17 and contact layer 16 is textile material.The described contact layer 16 using layer of web material can be fixing by sewing with described gas tube outer layer 17, and accommodates described intermediate layer 15 between the two.
Said structure will be formed fixing by the operation of sewing, it is simple to processing.Simultaneously because intermediate layer 15 is the material that can resist certain pressure and temperature, therefore, it is possible to instantaneous high-temperature and pressure produced by opposing pyrotechnic gas generating unit 11, injection section 12 can normally be worked, it is to avoid damage, and gas is inducted into downwards air guiding portion 13.
As further improving, as it is shown in figure 5, described contact layer 16 has the leader 161,162 along the described pyrotechnic gas generating unit 11 described gas passage of extending radially downward entrance.Owing to contact layer 16 is directly facing pyrotechnic gas generating unit 11, therefore use and extended down into gas passage formation leader 161, after 162, gas will smoothly enter air guiding portion 13 along the direction of arrow in Fig. 5, due to the stitching thread do not fixed on the progress path of gas, therefore gas is along leader 161, and more smooth during 162 flowing, the most whole device also will not be destroyed by gas impulsive force.
As can be seen here, have employed in the present invention by single fabric loop turn to flexible gas-filled device, its simple in construction, easy to process；Injection section is with the smooth and easy connection of structure between air guiding portion, it is to avoid Latent destruction power during inflation；And air guiding portion is also processing and fixing convenient flexible fabric, also allow for adjusting the area of first, second and third gas outlet simultaneously, and then adjust tolerance and form the regulation and control of the many sizes to air bag, to meet various inflation requirement.
And after the present invention uses the gas generating unit of pyrotechnic light-duty, undersized, overall weight greatly reduces, installation site is the most flexible, and adaptability is consequently increased.The gas produced by this pyrotechnic gas generating unit with moment higher temperatures, pressure it is also resistant against in combination with the injection section structure of above-mentioned aerating device.
Claims (9)
1. an aerating device for automobile safety air curtain, inflatable bladders that described gas curtain includes providing lateral protection and for the gas generating unit of described airbag aeration, described aerating device has:
The injection section being axially connected with described gas generating unit, described injection section includes that the outer layer being made up of textile material, the sewing of described outer layer are fixed on described air bag；With
With described injection section gas communication charge air conditioning is entered along longitudinal guide described air bag air guiding portion,
It is characterized in that:
Described aerating device be by single piece of fabric rings of material around barrel shape body, described injection section is the radial direction upper end of described textile material barrel shape body axially extended part, described air guiding portion is the radial direction lower end of described textile material barrel shape body axially extended part, and the described textile material barrel shape body portion between described injection section and described air guiding portion forms gas passage will the two gas communication；
The gas outlet of described gas generating unit be circumferential ring around layout, described injection section also has the internal layer around described gas generating unit gas outlet.
2. the aerating device of the automobile safety air curtain as described in claim l, it is characterised in that: described air guiding portion has the first gas outlet and the second gas outlet at axial two ends.
3. the aerating device of the automobile safety air curtain as described in claim l, it is characterised in that: there is on the sidewall of described air guiding portion at least one the 3rd gas outlet.
4. the aerating device of automobile safety air curtain as claimed in claim 1, it is characterised in that: described gas generating unit is pyrotechnic gas generating unit.
5. the aerating device of automobile safety air curtain as claimed in claim 1, it is characterised in that: described inner layer ring is around the gas outlet, middle and upper part of described gas generating unit, and the gas outlet, bottom of described gas generating unit connects with described gas passage.
6. the aerating device of automobile safety air curtain as claimed in claim 5, it is characterised in that: described internal layer includes the contact layer contacted with described gas generating unit, the intermediate layer between described contact layer and described injection section outer layer.
7. the aerating device of automobile safety air curtain as claimed in claim 6, it is characterised in that: described intermediate layer is thermoplastic elastic material, textile material or metal material, and described contact layer is textile material.
The aerating device of automobile safety air curtain the most as claimed in claims 6 or 7, it is characterised in that: described contact layer is fixing by sewing with the outer layer of described injection section, and accommodates described intermediate layer between the two.
The aerating device of automobile safety air curtain the most as claimed in claims 6 or 7, it is characterised in that: described contact layer has the leader along the described gas generating unit described gas passage of extending radially downward entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010283598.1A CN102398562B (en) | 2010-09-13 | 2010-09-13 | The aerating device of automobile safety air curtain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010283598.1A CN102398562B (en) | 2010-09-13 | 2010-09-13 | The aerating device of automobile safety air curtain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102398562A CN102398562A (en) | 2012-04-04 |
| CN102398562B true CN102398562B (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010283598.1A Active CN102398562B (en) | 2010-09-13 | 2010-09-13 | The aerating device of automobile safety air curtain |
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| CN (1) | CN102398562B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019069143A2 (en) * | 2017-03-29 | 2019-04-11 | Nio Nextev Limited | Airbag deployment trajectory control mechanism and method with positioner |
| US10343643B2 (en) | 2017-03-29 | 2019-07-09 | Nio Nextev Limited | Airbag deployment trajectory control mechanism and method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005056348A1 (en) * | 2003-12-08 | 2005-06-23 | Autoliv Development Ab | Vehicle air bag device |
| DE102005001598A1 (en) * | 2005-01-12 | 2006-07-20 | Autoliv Development Ab | Airbag and method for producing an airbag |
| JP4884192B2 (en) * | 2006-12-11 | 2012-02-29 | 住商エアバッグ・システムズ株式会社 | Gas distribution member for curtain bags |
| CN201325406Y (en) * | 2008-11-05 | 2009-10-14 | 锦州锦恒汽车安全系统有限公司 | Curtain type airway tube for air chamber |
| CN201325407Y (en) * | 2008-11-07 | 2009-10-14 | 锦州锦恒汽车安全系统有限公司 | Curtain type airway tube for air chamber |
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| CN102398562A (en) | 2012-04-04 |
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