CN104791528A - Automobile safety air bag deflation hole automatic pressure control valve - Google Patents
Automobile safety air bag deflation hole automatic pressure control valve Download PDFInfo
- Publication number
- CN104791528A CN104791528A CN201510089656.XA CN201510089656A CN104791528A CN 104791528 A CN104791528 A CN 104791528A CN 201510089656 A CN201510089656 A CN 201510089656A CN 104791528 A CN104791528 A CN 104791528A
- Authority
- CN
- China
- Prior art keywords
- air bag
- deflation
- pressure
- bleeder port
- reed
- 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.)
- Pending
Links
Classifications
-
- 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
- B60R21/23—Inflatable members
- B60R21/239—Inflatable members characterised by their venting means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention discloses an automobile safety air bag deflation hole automatic pressure control valve which comprises a deflation orifice plate. The deflation porous plate is connected with a deflation hole position on an air bag, and a deflation hole cover piece is arranged on the deflation orifice plate and is provided with a pressure reed. The deflation orifice plate is connected with a reed support bottom plate through a fixing connecting piece, and the pressure reed is arranged between the deflation hole cover piece and the reed support bottom plate. The valve has the advantages that a deflation valve is installed on a deflation hole of the air bag to automatically control deflation of the air bag, residual pressure can be kept in the air bag for a certain period of time, and the danger that deflation of the air bag is not controlled and passengers are hurt can be effectively reduced.
Description
Technical field
The invention belongs to automotive safety equipment technical field, relate to a kind of safe automobile air bag bleeder port automatic pressure control valve.
Background technique
Safe automobile air bag is a kind of modern automobile passenger passive protective device; namely when automobile crashes; airbag can be inflating expanded within the extremely short time, stops passenger to contact with hard object in car (as steering wheel, instrument panel etc.) and secondary collision occurs.When on passenger's head or chest impact during gassiness airbag, air bag can get rid of gas, to reach the object of buffering energy-absorbing by the bleeder port on airbag again within the extremely short time.Because compole when the inflating expanded of air bag and effect of impact is short, approximately only have 30-50 millisecond, therefore, when a vehicle is in a collision, air bag detonates, gassy and to complete the effect of disappointing moment to passenger protection most important.
Automotive Airbag Technology and background thereof can be understood from its action principle.When automobile collides, mounted in a vehicle sensor detects collision impact, when impacting force value or deceleration value exceedes setting value, electric detonator circuit in safety airbag ECU demand working inflation element, light the ignition media in electric detonator, lead fire medicinal powder and gas-forming agent, produce a large amount of gas, within the time of about 30 milliseconds, make air bag sharply expand, break through deckboard or occupant side instrument panel on steering wheel, the head of driver and occupant or chest is made to be pressed on gassiness air bag, relax the impact of driver or occupant, after driver or occupant strike air bag, gas in air bag is discharged by bleeder port again by air bag fast.
In above-mentioned air bag system, the bleeder port of air bag is an important constituent element.If do not have bleeder port to be vented, then the Impact energy of passenger cannot be compressed by air bag and effectively absorb.If lose heart too early or lost heart evening, then air bag does not reach good protected effect equally, even likely causes damage to occupant.
Current safe automobile air bag is all directly on airbag, open two bleeder ports, Leakage Gas in bag can not be effectively controlled, if the kinetic energy that when there is high velocity impact, occupant is clashed into not yet effectively is absorbed by air bag and air bag may lose heart totally, the body part of occupant can be caused so directly to strike the hard object bodies such as steering wheel and be subject to major injury.
If the bleeder port on airbag does not install any control gear additional, so its lose heart would not be subject to any control, although be convenient to like this lose heart, but also have two obvious shortcomings: one be from inflation time will lose heart, thus need larger aeration quantity, cause inflationtime to extend, in a disguised form reduce protected effect; If two is that in particular cases air bag needs to preserve certain residual pressure and cannot keep gas here to relax when occupant impacts, thus air bag can be caused not reach due protected effect in crucial moment.
Summary of the invention
The object of this invention is to provide a kind of safe automobile air bag bleeder port automatic pressure control valve, existing bladder deflates hole installs additional a kind of pressure controlled valve of automation, and only have when the pressure in air bag reaches certain value, bleeder port could lose heart; And when losing heart to certain pressure, bleeder port can be closed automatically, thus ensure the residual pressure that there is certain hour in air bag.
The technical solution adopted in the present invention is: a kind of safe automobile air bag bleeder port automatic pressure control valve, comprise disappointing orifice plate, the orifice plate that loses heart is connected with the bleeder port position on air bag, the orifice plate that loses heart is provided with bleeder port cover plate, bleeder port cover plate is provided with pressure reed.
Feature of the present invention is also, the orifice plate that loses heart connects reed support base plate by fixed connecting piece, and pressure reed is arranged between bleeder port cover plate and reed support base plate.
The invention has the beneficial effects as follows by bladder deflates hole install a gas bleeder valve the disappointing of air bag is controlled automatically, gas bleeder valve adopts the mutual automatism of the gentle pressure of pressure reed to control to lose heart, when the pressure in air bag is higher than pressure reed pressure, bleeder port loses heart; And when the air pressure in air bag is lower than pressure reed pressure, bleeder port is closed and is stopped losing heart.The residual gas pressure retaining certain hour in air bag can be made like this, thus effectively can reduce the occupant injury risk caused because bladder deflates is uncontrolled.
Accompanying drawing explanation
Fig. 1 is automatic pressure control valve structural representation of the present invention.
In figure, 1. lose heart orifice plate, 2. bleeder port cover plate, 3. pressure reed, 4. reed support base plate, 5. fixed connecting piece, 6. air bag.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
A kind of safe automobile air bag bleeder port automatic pressure control valve, structure as shown in Figure 1, comprise disappointing orifice plate 1, the orifice plate 1 that loses heart is connected with the bleeder port position on air bag 6, the orifice plate 1 that loses heart connects reed support base plate 4 by fixed connecting piece 5, disappointing orifice plate 1 is provided with bleeder port cover plate 2, between bleeder port cover plate 2 and reed support base plate 4, is provided with pressure reed 3.
Under the pressure reed 3 of automatic pressure control valve of the present invention is in certain preload pressure, bleeder port cover plate 2 is pressed on disappointing orifice plate 1.When pressure upon inflation in air bag 6 is less than the preload pressure of pressure reed 3, the bleeder port of air bag is covered and can not loses heart, and is now conducive to air bag 6 and inflates rapid deployment; And when the pressure in air bag 6 is greater than the preload pressure of pressure reed 3, bleeder port cover plate 2 is opened by air pressure and loses heart; When air bag 6 clashes into by occupant and loses heart to certain pressure, pressure reed 3 self-return promotes bleeder port cover plate 2 and is covered by bleeder port, can ensure to leave certain residual pressure in air bag 6.The size of the preload pressure of pressure reed 3 and elastic characteristic are by experiment or computer simulation and determining.
Automatic pressure control valve of the present invention installs additional on existing airbag bleeder port, convenient and practical, simple to operate.Control automatically opening and closedown of bleeder port by the pressure of gas in airbag self, can lose heart less when airbag deployment is inflated on the one hand, reduce gas consumption; What is more important on the other hand, can make to retain certain residual gas pressure in air bag, extend buffer function time of air bag, pressure when avoiding high velocity impact in air bag is let out fast to the greatest extent and causes driver in car (or occupant) finally strike in the hard object such as steering wheel (or instrument panel) and sustain a severe injury.
Claims (2)
1. a safe automobile air bag bleeder port automatic pressure control valve, it is characterized in that, comprise disappointing orifice plate (1), the orifice plate (1) that loses heart is connected with the bleeder port position on air bag (6), disappointing orifice plate (1) is provided with bleeder port cover plate (2), bleeder port cover plate (2) is provided with pressure reed (3).
2. a kind of safe automobile air bag bleeder port automatic pressure control valve according to claim 1, it is characterized in that, described disappointing orifice plate (1) connects reed support base plate (4) by fixed connecting piece (5), and pressure reed (3) is arranged between bleeder port cover plate (2) and reed support base plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510089656.XA CN104791528A (en) | 2015-02-27 | 2015-02-27 | Automobile safety air bag deflation hole automatic pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510089656.XA CN104791528A (en) | 2015-02-27 | 2015-02-27 | Automobile safety air bag deflation hole automatic pressure control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104791528A true CN104791528A (en) | 2015-07-22 |
Family
ID=53556571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510089656.XA Pending CN104791528A (en) | 2015-02-27 | 2015-02-27 | Automobile safety air bag deflation hole automatic pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104791528A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882592A (en) * | 2016-04-20 | 2016-08-24 | 芜湖金鹏汽车部件有限公司 | Safety airbag with safety relief valve |
| CN108813782A (en) * | 2018-07-01 | 2018-11-16 | 钟冬妹 | It is a kind of to bury the assisted respiartion helmet of saving oneself |
| CN110040094A (en) * | 2019-04-10 | 2019-07-23 | 浙江吉利汽车研究院有限公司 | Air bag system and vehicle |
| CN112109656A (en) * | 2020-09-29 | 2020-12-22 | 陈肇明 | Novel high-efficient car air bag device |
-
2015
- 2015-02-27 CN CN201510089656.XA patent/CN104791528A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882592A (en) * | 2016-04-20 | 2016-08-24 | 芜湖金鹏汽车部件有限公司 | Safety airbag with safety relief valve |
| CN108813782A (en) * | 2018-07-01 | 2018-11-16 | 钟冬妹 | It is a kind of to bury the assisted respiartion helmet of saving oneself |
| CN110040094A (en) * | 2019-04-10 | 2019-07-23 | 浙江吉利汽车研究院有限公司 | Air bag system and vehicle |
| CN112109656A (en) * | 2020-09-29 | 2020-12-22 | 陈肇明 | Novel high-efficient car air bag device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150722 |