CN2234887Y

CN2234887Y - Air bag protector for vehicle

Info

Publication number: CN2234887Y
Application number: CN 95207480
Authority: CN
Inventors: 范良藻; 范思琼
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-13
Filing date: 1995-04-13
Publication date: 1996-09-11
Anticipated expiration: 2005-04-13

Abstract

The utility model discloses a high-pressure gas container which is designed specially in an oblate ellipsoid shape and can be installed in the steering wheel. The utility model can replace the common gas generator which is composed of initiating explosive device at home and abroad; when the neck of the high-pressure gas container is opened by detonator explosion, the high-pressure gas which is stored in the high-pressure container can charge in the air bag quickly, having a function of protecting the drivers and passengers; the gas in the air bag is cold and is without environmental pollution; the detonator is detonated by an electric signal, so a crash sensor can be arranged at the most suitable position and can detect the occurrence of the serious collision accidents accurately; so the utility model can protect the safety of the drivers and passengers and can protect the environment.

Description

Air bag protecting arrangement for vehicle

The utility model relates to a kind of for motor vehicle air bag protecting arrangement, the air bag protecting arrangement that the air bag protecting arrangement of using on the automobile of more specifically saying so, particularly chaufeur used.

In recent years the development of communications and transportation promotes the increase of highway, especially express highway since, and vehicle increases and speed increases, so the collision case of vehicle also increases.Prevent that personnel's injures and deaths are earth shaking problems in the accident.Because the speed height, general safety strap can not solve the injures and deaths problem in the high-speed crash.Occurred the protection air bag apparatus since the eighties, promptly in time inflated after the collision, between human body and other objects of Che Nei, formed buffering with airbag to an airbag.Be to activate to open gas source by a crash sensor to inflate in the prior art to airbag.What gas source had produces with the gunpowder detonation, as Chinese utility model patent 92229131.4 (CN 2138594Y), the gas that this device produces is followed a large amount of heat energy, might hurt sb.'s feelings and damage device, and also has the problem of objectionable constituent in gunpowder residue or the gas.Gas source also can be used high-pressure gas bottle, as Chinese utility model patent 9238860.1 (CN 2138593Y), wherein discloses a kind of fully mechanical air bag protecting device.But be communicated with tracheae between the gas cylinder of this device and the air bag,, also mentioned the thought of opening electromagnetic valve with pressure sensor so the capacity of gas big (tens liters) inadequately particularly has action that the pipeline damping makes device fast (100 milliseconds) inadequately.The utility model patent 9229132.2 (CN2138595Y) in addition of power demand sensor.In addition, the structure of installing in the prior art is all very complicated, and the cost of product is higher.

The purpose of this utility model overcomes above-mentioned shortcoming of the prior art exactly, and a kind of simple structure, nuisanceless, the fast air bag protecting arrangement for vehicle of action are provided.

The task of this part utility model realizes with technical solution described as follows: air bag protecting arrangement is made up of collision detector, gas source and bag module, wherein gas source is the high-pressure gas container of an oblate ellipsoid shape, its inner section ovalize, its neck is by a foil seal; Signal with collision detector output is lighted a detonator, in order to the thin slice of explosion high-pressure gas container neck.Because discharge gas,, and use compressed nitrogen not have public hazards so gas has chilling effect when expanding with the high pressure gas container.Can make gas source be arranged on airbag mouth position again,,, inflate more fasterly, can reach the 30-50 millisecond than CN2138593Y so there is not the pipeline damping as CN2138594Y.Gas container adopts elliposoidal that the capacity of gas is increased, and can also be arranged in the chaufeur bearing circle in front.Detonator is arranged on the thin slice of gas container neck, and detonator is preferably used the electric detonation detonator, and this just can be connected with electric transducer, makes collision detector be arranged on optimal position.

Below knot platform drawings and Examples are done detailed explanation to the present invention.

Fig. 1 is an air bag protecting arrangement scheme drawing of using gunpowder nitrogen gas generator and mechanical pick-up device in the prior art.

Fig. 2 is with the gas generator for air bag scheme drawing of high-pressure nitrogen bottle and mechanical pick-up device in the prior art.

Fig. 3 is the scheme drawing of the utility model air bag protecting arrangement for vehicle, and a part is high-pressure gas container and airbag, and another part is a crash sensor 13, uses cable connection between two parts.

Fig. 4 is the structural representation of embodiment mesohigh gas container of the present utility model and bag module.

High-pressure gas container, detonator and bag module can be concentrated compactly and be arranged on the automobile steering wheel as can be seen from Figure 3.As long as collision detector provides an electric signal detonating primer, air bag apparatus just can be worked.

Airbag 1 represented among Fig. 4 is open, and airbag 1 is to fold up to be arranged at (among the figure) below the high-pressure gas container 2 when usual.The neck end of high-pressure gas container 2 is exactly a leak free thin slice 3.Be right after thin slice 3 above be electric detonation detonator 4, electric detonation detonator 4 is fixed on the neck of high-pressure gas container 2 by support 5.Be contact pilotage 6 above the electric detonation detonator 4, contact pilotage 6 outsides have insulator 7 to make electrical isolation between contact pilotage 6 and the venting cover 8, so that add electric energizing signal.Insulator 7 and venting cover 8 flush fits, there are a plurality of holes 9 side of venting cover 8.There is filter layer 10 inboard in hole 9, enters airbag 1 in order to stop solid granulates by hole 9.There is a bevelled lid 11 outside of venting cover 8, the round mouth and the sealings such as airbag 1 usefulness bolt and packing ring of lid 11, and 9 gases that shoot out are through covering the direct directive airbag 1 of conical reflecting in 11 from the hole.The volume of high-pressure gas container 2 can be the 100-200 milliliter, and its inflation pressure can not be lower than 200 barometric pressures.This just makes the volume of gas can satisfy 60 liters requirement.

The air bag protecting arrangement of high-pressure gas container formula of the present utility model, the capacity of gas can reach more than 60 liters, can finish whole gas replenishment processs in 30 milliseconds.It is non-harmful using compressed nitrogen, and the gas of airbag is cold, because collision detection device and high-pressure gas container and airbag separate, might judge whether serious collision case more accurately.The utility model is simple in structure, compactness and parts are few, the moderate product so reliable operation can be provided.

Though above embodiment and explanation all are to illustrate with the air bag protecting arrangement on the vehicle steering, the utility model is not limited to the air bag protecting arrangement that automobile driver is used, and also can use aspect the chaufeur of hot-short and occupant's the protection.A those skilled in the art so long as utilized design of the present utility model, will be understood that it is within protection domain of the present utility model in the scheme of having read the various distortion that can design by drawing inferences about other cases from one instance behind the specification sheets.

Claims

1. an air bag protecting arrangement for vehicle is made up of collision detector, gas source and bag module, it is characterized in that:

A. said gas source is a high-pressure gas container, is oblate ellipsoid shape

Cross section ovalize in it, its neck is by foil seal;

B. light a detonator with the signal of said collision detector output,

Thin slice in order to the said high-pressure gas container of explosion.

2. by the described air bag protecting arrangement for vehicle of claim 1, it is characterized in that said detonator is an electric detonator.

3. by claim 1 or 2 described air bag protecting arrangement for vehicle, it is characterized in that said high-pressure gas container and bag module are arranged in the automobile steering wheel.

4. by the described air bag protecting arrangement for vehicle of claim 3, the volume that it is characterized in that said high-pressure gas container is the 100-200 milliliter, and inflation pressure is not less than 200 barometric pressures.