CN201362233Y - Parallel device of automobile safety airbag - Google Patents
Parallel device of automobile safety airbag Download PDFInfo
- Publication number
- CN201362233Y CN201362233Y CNU2009201020295U CN200920102029U CN201362233Y CN 201362233 Y CN201362233 Y CN 201362233Y CN U2009201020295 U CNU2009201020295 U CN U2009201020295U CN 200920102029 U CN200920102029 U CN 200920102029U CN 201362233 Y CN201362233 Y CN 201362233Y
- Authority
- CN
- China
- Prior art keywords
- air bag
- safety airbag
- safety air
- terminal
- automobile
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a safety airbag initiation device used on an automobile; the device comprises a contact button arranged in a front cover of the automobile and a contactor connected with the contact button; the device also comprises a safety airbag central sensor (1); the B1 terminal in the safety airbag central sensor (1) is connected with a safety airbag initiator (2) for a driver, the B2 terminal in the safety airbag central sensor (1) is connected with a safety airbag initiator (3) for a front passenger, the B1 terminal and the B2 terminal of the safety airbag central sensor (1) are respectively connected with an automobile power supply which adopts a contactor self-locking circuit. The device has the beneficial effects that: the device has simple structure and is economic and practical; the initiation of the traditional safety airbag is controlled only by utilizing a sensor, in the utility model, by additionally arranging a pressure mechanical contact, the sensor system and the pressure contact device are used in parallel, so as to effectively reduced the casualties of people in accidents.
Description
Technical field
The utility model relates to a kind of safety air bag igniter that uses on automobile.
Technical background
Along with the development of highway and improving constantly of automotive performance, the moving velocity of automobile is more and more faster, and particularly because the increasing sharply of car owning amount, traffic is more and more crowded, makes accident more frequent, so that the safety of automobile just becomes is particularly important.Simultaneously, according to investigations, be because the fault or the abnormal signal of electronics package part cause in the problem overwhelming majority of the secure context that all safety air bags caused.
Traditional safety air bag mainly is made up of gas generator and control setup, the requirement gas generator a large amount of gas of (about 30ms) generation in the short period of time is full of air bag, the gas that produces must be harmless, and temperature can not be too high, requires gas generator that very high reliability and stability are arranged simultaneously.Gas generator mainly contains: pressure gas formula, pyrotechnic and hybrid three kinds of patterns.Hybrid gas generator is the producer that pressure gas formula and pyrotechnic combine, and also is a kind of gas generator of present widespread use.And control setup generally is integrated in the microcomputer.When automobile bumped, electrical controller received the signal that a plurality of sensors transmit, and through analyzing continuously, compare, calculating, whether decision sends ignition signal.
Safety air bag on the market structurally can be different now, but its principle of work basically identical.In the vehicle traveling process, sensing system is constantly to control setup transmission speed change information, by control setup (central controller) to these information analysis and judgement in addition, if the acceleration/accel of being surveyed, velocity variable or other index surpass predetermined value, then control setup sends ignition order or the igniting of sensor direct control to gas generator, the reaction of blasting after the igniting produces N
2Or compression hydrogen in the storage tank discharged be full of the collision airbag.When the occupant contacts with airbag,, reach protection occupant's purpose by the damping absorption collision energy of airbag upper air-vent.
Summary of the invention
In order to overcome above-mentioned shortcoming; the utility model provides a kind of parallel device of safe automobile air bag; this device has installed a mechanical contact device additional on the electronics package of safety air bag, reach the purpose that reduces accident potential's protection chaufeur thereby form parallel device.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of parallel device of safe automobile air bag, this device comprises the safety air bag master reference, the B in the described safety air bag master reference
1Terminal links to each other with the safety air bag detonator with chaufeur, the B in the described safety air bag master reference
2Terminal links to each other with the safety air bag detonator with front occupant, the B in the described safety air bag master reference
1Terminal and B
2Terminal is connected with the automobile power source that adopts the contactless switch self-locking circuit respectively.
As preferred structure of the present utility model, the open contact that described contactless switch self-locking circuit is a contactless switch is in parallel with mechanical contact, and gets the break-make that dead electricity is controlled open contact by the coil of contactless switch.
The beneficial effect of the utility model product is be device simple in structure, simultaneously economical and practical, it has changed the conventional security air bag and has only utilized popping of sensor control safety air bag, by installing a pressure contact additional, form the parallel use of sensing system and pressure contact device, thereby can reduce personnel's injures and deaths in the accident by actv..
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is done explanation in further detail.
Fig. 1 is the circuit structure diagram of the parallel device of safe automobile air bag.
The specific embodiment
In order to overcome the disadvantage of existing air bag sensor unstable properties, the utility model is using a mechanical contact in the general-duty sensor safe balloon detection circuit now simultaneously, and promptly the two has one can normal operation the time, all can make safety air bag work.Simultaneously, this device has compact conformation, and cost of manufacture is low, and circuit is simple, and reliable operation is had a style of one's own, and the convenient characteristics that link to each other with automobile interface are convenient to promote the advantage that market outlook are wide.
B in the safety air bag master reference 1 of this device
1Terminal links to each other with safety air bag detonator 2 with chaufeur, the B in the safety air bag master reference 1
2Terminal links to each other with safety air bag detonator 3 with front occupant, the B in the safety air bag master reference 1
1Terminal and B
2Terminal is connected with the automobile power source that adopts the contactless switch self-locking circuit respectively.The contactless switch self-locking circuit is the open contact KM of contactless switch
1SB is in parallel with mechanical contact, and by the coil KM of contactless switch
1Get dead electricity and control open contact KM
1Break-make.
The external device of this device mainly is made of following three parts:
1. bump pressure sleeve: make by engineering plastics, be made into a rectangular cover, and by calculating the intensity that can determine engineering plastics, to guarantee that safety air bag can not flick in cruising He in the slight impact.When pressure surpasses the highest limit that bump pressure sleeve institute can bear, clashing into pressure sleeve will be damaged, and touch the contact.
2. mechanical contact and connection mode thereof: mechanical contact is placed in automobile protecgulum inside, on the crashproof crossbeam.Simultaneously, a small-sized contactless switch is installed behind mechanical contact, the circuit of forming by this contactless switch just with safety air bag master reference 1 in B
1Terminal and B
2Terminal is connected, and adopts latching circuit.When pressing mechanical contact, will make the mechanical contact closure, and lock by latching circuit, suitable operating voltage is provided and makes its ignition with safety air bag detonator 3 with safety air bag detonator 2 and front occupant to chaufeur.
3. dividing potential drop and feed circuit: because the automotive interior power supply is general different with the operating voltage of safety air bag detonator, for example the energy supply voltage of air bag device is 30V, and has only 13.7V with safety air bag detonator 2 and front occupant with the operating voltage of safety air bag detonator 3 for chaufeur.Therefore, use dividing potential drop variable resistance R at this
1It is carried out voltage division processing, make chaufeur ensure normal operating voltage with safety air bag detonator 3 with safety air bag detonator 2 and front occupant.
Claims (2)
1, a kind of parallel device of safe automobile air bag, comprise be installed in automobile protecgulum in-to-in contact button and and contact button bonded assembly contactless switch, it is characterized in that: this device also comprises safety air bag master reference (1), the B in the described safety air bag master reference (1)
1Terminal links to each other with safety air bag detonator (2) with chaufeur, the B in the described safety air bag master reference (1)
2Terminal links to each other with safety air bag detonator (3) with front occupant, the B in the described safety air bag master reference (1)
1Terminal and B
2Terminal is connected with the automobile power source that adopts the contactless switch self-locking circuit respectively.
2. the parallel device of safe automobile air bag according to claim 1 is characterized in that: the open contact (KM that described contactless switch self-locking circuit is a contactless switch
1) in parallel with mechanical contact (SB), and by the coil (KM of contactless switch
1) must dead electricity control open contact (KM
1) break-make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201020295U CN201362233Y (en) | 2009-03-20 | 2009-03-20 | Parallel device of automobile safety airbag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201020295U CN201362233Y (en) | 2009-03-20 | 2009-03-20 | Parallel device of automobile safety airbag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201362233Y true CN201362233Y (en) | 2009-12-16 |
Family
ID=41472893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201020295U Expired - Fee Related CN201362233Y (en) | 2009-03-20 | 2009-03-20 | Parallel device of automobile safety airbag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201362233Y (en) |
-
2009
- 2009-03-20 CN CNU2009201020295U patent/CN201362233Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20100320 |