JPH03279056A - Passenger safeguard device with air bag system - Google Patents
Passenger safeguard device with air bag systemInfo
- Publication number
- JPH03279056A JPH03279056A JP2082326A JP8232690A JPH03279056A JP H03279056 A JPH03279056 A JP H03279056A JP 2082326 A JP2082326 A JP 2082326A JP 8232690 A JP8232690 A JP 8232690A JP H03279056 A JPH03279056 A JP H03279056A
- Authority
- JP
- Japan
- Prior art keywords
- electric power
- heat
- conversion element
- electric
- air bag
- 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.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims description 5
- 230000020169 heat generation Effects 0.000 claims description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 238000005422 blasting Methods 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000010009 beating Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- BICLVNGVIUNNTB-UHFFFAOYSA-N [N-]=[N+]=[N-].[Na+].[O-2].[Fe+2] Chemical compound [N-]=[N+]=[N-].[Na+].[O-2].[Fe+2] BICLVNGVIUNNTB-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
Landscapes
- Air Bags (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は電気雷管発火式ガス発生器によりエヤーバッグ
を作動させるエヤーバッグシステムによる乗員保護装置
の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in an occupant protection device using an air bag system that operates an air bag using an electric detonator ignition type gas generator.
乗物が衝突事故を起した場合の乗員保護装置として、気
体袋の緩衝性を利用する装置が乗物に装備される様にな
ってきており、通称エヤーバッグシステムと称せられて
いる。かかる乗員保護装置に於ては、一定値以上の衝撃
値を加速度計又は歪計等の衝撃センサーで感知し、その
信号によりガス発生器を作動させて気体袋を膨張させて
いる。従来のかかるエヤーバッグシステムによる乗員保
護装置では、乗員が複数の場合は乗員数だけの気体袋が
必要となり、従って夫々の気体袋を膨張させるためのガ
スを供給する各ガス発生器を作動させる点火用雷管が必
要であり、その雷管が電気式の場合は各電気雷管を点火
させるための複数倍の電力が必要となり、一方刺突雷管
の場合は複数個の機械式センサーを必要とした。2. Description of the Related Art Vehicles have come to be equipped with devices that utilize the cushioning properties of gas bags as occupant protection devices in the event of a vehicle collision, and are commonly referred to as air bag systems. In such an occupant protection device, an impact value greater than a certain value is detected by an impact sensor such as an accelerometer or a strain meter, and the signal is used to operate a gas generator to inflate a gas bag. In the conventional occupant protection device using such an air bag system, when there are multiple occupants, as many gas bags as the number of occupants are required. Electric detonators required multiple times the power to ignite each electric detonator, while piercing detonators required multiple mechanical sensors.
上記の様に複数個のセンサーや複数倍の電力を常時必要
とするエヤーバッグシステムはコスト高となり、かつ電
力を電気雷管の配線系に常時蓄電していると不時発火の
危険もあり、安全性が低下するという欠点がある。従っ
て常時は電気雷管系に電力を存在させずに安全性を向上
させ得る装置が望まれていた。As mentioned above, airbag systems that require multiple sensors and multiple times more power at all times are expensive, and if power is constantly stored in the electric detonator wiring system, there is a risk of accidental ignition, making it safer. The disadvantage is that the performance is reduced. Therefore, there has been a desire for a device that can improve safety without requiring power to be constantly present in the electric detonator system.
本発明者等はかかる課題を解決し得るエヤーバッグシス
テムによる乗員保護装置について鋭意研究した結果、衝
撃により発熱する発熱器内に熱変換素子を配置し、衝撃
センサーが作動した場合発熱器が発生する熱を利用して
熱変換素子に電力を発生させ、その電力により、ガス発
生器の電気雷管を点火させることにより、常時電気雷管
の配線系に蓄電する必要がなく、又機械式センサーを複
数個設ける必要もなく、安全性の優れたエヤーバッグに
よる乗員保護装置が得られることを見出して本発明に到
ったものである。即ち本発明は衝撃を感知して発熱する
発熱器内にこの発熱を電力に変換する熱変換素子を配置
し、発生した電力を１個若しくは複数個のエヤーバッグ
の夫々の電気雷管発火式ガス発生器に供給して、夫々の
エヤーバッグを作動させる様にしたことを特徴とするエ
ヤーバッグシステムによる乗員保護装置に係るものであ
る。As a result of intensive research into an occupant protection device using an airbag system that can solve these problems, the inventors of the present invention have placed a heat conversion element inside a heat generator that generates heat due to impact, and when the impact sensor is activated, the heat generator is generated. By using heat to generate electricity in a heat conversion element and using that electricity to ignite the electric detonator of the gas generator, there is no need to constantly store electricity in the electric detonator's wiring system, and multiple mechanical sensors can be used. The present invention was developed based on the discovery that an air bag-based occupant protection device with excellent safety can be obtained without the need to provide an air bag. That is, the present invention arranges a heat conversion element that converts this heat generation into electric power in a heat generator that senses an impact and generates heat, and the generated electric power is applied to each electric detonator ignition type gas generator of one or more airbags. This invention relates to an occupant protection device using an airbag system, characterized in that the airbag system is supplied with air to operate each airbag.
次に本発明を図面について説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明に係るエヤーバッグシステムの概略図で
ある。乗物が衝突等の事故を起してそれにより一定値以
上の衝撃加速度を受けると衝撃センサー１が作動し、発
熱器２が発熱する。FIG. 1 is a schematic diagram of an airbag system according to the present invention. When a vehicle causes an accident such as a collision and receives an impact acceleration of a certain value or more, an impact sensor 1 is activated and a heat generator 2 generates heat.
本発明の装置に於ては発熱器２内に設けた熱変換素子３
がこの発熱により起電され、発生した電力は熱変換素子
３の電力端子４及び４゛から配線５及び５°を通じて複
数個（この場合２個であるが乗員数に応じて何個でもよ
い）の気体袋９及び９°を膨張させるための夫々のガス
発生器８及び８°内に配置された電気雷管７及び７°の
電力端子６及び６′に供給される。この場合、衝撃セン
サー１は機械式センサーでも又電気式センサーであって
も良い。In the device of the present invention, a heat conversion element 3 provided in a heat generator 2
is generated by this heat generation, and the generated electric power is transmitted from the power terminals 4 and 4 of the heat conversion element 3 to the wires 5 and 5 through multiple terminals (in this case, two terminals, but any number of terminals may be used depending on the number of passengers). Electric detonators 7 and 7° are supplied with electrical power terminals 6 and 6' located in gas generators 8 and 8°, respectively, for inflating gas bags 9 and 9°. In this case, the impact sensor 1 may be a mechanical sensor or an electrical sensor.
次に第１図に示した様な本発明になるエヤーバッグシス
テムによる乗員保護装置の作動を説明する。刺突雷管を
配置した直径３．５ｃｍの機械式センサーに、同じく直
径３．５ｃｍの発熱器に硝酸カリウムを酸化剤とし硼素
粉末を燃料とした発熱剤９ｇを挿入し、更に発熱器内に
動作温度５００℃、出力電圧１．７ボルトの性能を持つ
アモルファス熱変換デバイスを挿入して配置させた。Next, the operation of the occupant protection device using the air bag system according to the present invention as shown in FIG. 1 will be explained. A 3.5 cm diameter mechanical sensor equipped with a piercing detonator was inserted into a 3.5 cm diameter heat generator with 9 g of a heat generating agent using potassium nitrate as an oxidizing agent and boron powder as a fuel, and the operating temperature was further increased within the heat generator. An amorphous heat conversion device with a performance of 500° C. and an output voltage of 1.7 volts was inserted and placed.
一方容積６０リットルの気体袋を膨張させるためのアジ
化ナトリウム−酸化鉄系のガス発生剤９０ｇを夫々のガ
ス発生器に装填した。ガス発生器を発火させるたぬの電
気雷管の電力端子と熱変換デバイスの電力端子間は２メ
ートルの配線で結合した。尚乗員２名を想定してエヤー
バッグは２個並列に配置した。On the other hand, 90 g of a sodium azide-iron oxide gas generating agent for inflating a gas bag having a volume of 60 liters was loaded into each gas generator. The power terminal of Tanu's electric detonator, which ignites the gas generator, and the power terminal of the heat conversion device were connected with a 2-meter wire. Two airbags were placed in parallel assuming there were two occupants.
上記機械式センサーに８０Ｇ（ジー）の衝撃を与えると
２個の気体袋は２０ミリ秒後から膨張を開始し、８０ミ
リ秒後には完全膨張した。When an impact of 80 G (G) was applied to the mechanical sensor, the two gas bags started to expand after 20 milliseconds, and were completely inflated after 80 milliseconds.
実施例で述べたように本発明の乗員保護装置。 The occupant protection device of the present invention as described in the embodiments.
では電気雷管の配線系には常時は電力源が一切存在して
いないので、ガス発生器の不時発火の危険は全く無い。Since no power source is always present in the wiring system of the electric detonator, there is no danger of the gas generator accidentally igniting.
又高価な衝撃センサーは一個のみで複数個のガス発生器
を同時に作動させることができるので、安価で信頼性が
高いエヤーバッグシステムを構成することが出来、又各
ガス発生器は小型の電気雷管のみで発火できるので軽量
小型化が可能である。In addition, only one expensive impact sensor can operate multiple gas generators at the same time, making it possible to construct an inexpensive and highly reliable air bag system. Since it can be ignited with just one, it can be made lighter and smaller.
第１図は本発明のエヤーバッグシステムの概略図である
。
１ 衝撃センサー ６．６゛ 電力端子２ 発熱
器 ７，７° 電気雷管３ 熱変換素子
８，８′ ガス発生器４．４′ 電力端子 ９
，９゛ 気体袋５ 配線FIG. 1 is a schematic diagram of the air bag system of the present invention. 1 Shock sensor 6.6゛ Power terminal 2 Heat generator 7.7° Electric detonator 3 Heat conversion element
8, 8' Gas generator 4.4' Power terminal 9
,9゛ Gas bag 5 Wiring
Claims (1)
に変換する熱変換素子を配置し、発生した電力を１個若
しくは複数個のエヤーバッグの夫々の電気雷管発火式ガ
ス発生器に供給して、夫々のエヤーバッグを作動させる
様にしたことを特徴とするエヤーバッグシステムによる
乗員保護装置。1. A heat conversion element that converts this heat generation into electricity is placed in a heat generator that generates heat by sensing an impact, and the generated electricity is supplied to the electric detonator ignition type gas generator of each of one or more airbags. An occupant protection device using an airbag system, characterized in that each airbag is activated by the airbag system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2082326A JP2878770B2 (en) | 1990-03-28 | 1990-03-28 | Occupant protection device with airbag system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2082326A JP2878770B2 (en) | 1990-03-28 | 1990-03-28 | Occupant protection device with airbag system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03279056A true JPH03279056A (en) | 1991-12-10 |
| JP2878770B2 JP2878770B2 (en) | 1999-04-05 |
Family
ID=13771433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2082326A Expired - Lifetime JP2878770B2 (en) | 1990-03-28 | 1990-03-28 | Occupant protection device with airbag system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2878770B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7651127B2 (en) | 2006-10-31 | 2010-01-26 | Hyundai Motor Company | Blasting cap apparatus for vehicle airbag and control method |
-
1990
- 1990-03-28 JP JP2082326A patent/JP2878770B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7651127B2 (en) | 2006-10-31 | 2010-01-26 | Hyundai Motor Company | Blasting cap apparatus for vehicle airbag and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2878770B2 (en) | 1999-04-05 |
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