CN2335840Y - Mechanoelectric collision transducer for controlling automotive safety air bag device - Google Patents
Mechanoelectric collision transducer for controlling automotive safety air bag device Download PDFInfo
- Publication number
- CN2335840Y CN2335840Y CN 98252118 CN98252118U CN2335840Y CN 2335840 Y CN2335840 Y CN 2335840Y CN 98252118 CN98252118 CN 98252118 CN 98252118 U CN98252118 U CN 98252118U CN 2335840 Y CN2335840 Y CN 2335840Y
- Authority
- CN
- China
- Prior art keywords
- diode
- acceleration switch
- air bag
- relay
- bag device
- 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 - Lifetime
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Abstract
The utility model relates to an electromechanical type collision transducer used for controlling the safety air bag device of an automobile. An acceleration switch K and diodes D1 and D2 which are connected in a reverse direction are connected in series in a circuit, the diode D1 is switched on, and the diode D2 is stopped. A capacitor C, a relay K j and the diode D2 are connected in parallel, and the relay K j at least is provided with a pair of normal open contacts which are respectively connected with a circuit terminal of the initiation energy and an input terminal of a safety transducer. The utility model makes a relay circuit generate the change through the acceleration switch, and complete the ignition control of the safety air bag. The utility model has the advantages of reliable work, small size, low cost and convenient production and adjustment, and is especially suitable for a one-point safety air-bag device.
Description
The utility model relates to a kind of sensor of Control of Automobile air bag device, particularly a kind of electromechanical crash sensor.
No matter the crash sensor that existing Automotive Safety Air Bags is adopted is wind spring or torsional spring type, and reality all is a kind of acceleration switch of Purely mechanical, and shortcoming is that volume is big, the production debugging is higher than trouble, cost, the incompatibility miniaturization structure.
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, provides a kind of volume little, and reliable operation is with low cost, produces and debugs the electromechanical crash sensor of Control of Automobile air bag device easily.
The purpose of this utility model realizes by following technical proposals:
The electromechanical crash sensor of Control of Automobile air bag device has acceleration switch, and its technical scheme is described acceleration switch K and cond C, relay K j, diode D
1And D
2The circuit that constitutes is connected, acceleration switch K and reverse bonded assembly diode D
1And D
2Be series between power line voltage and the ground wire diode D
1Conducting, diode D
2End diode D
2Plus earth, cond C, relay K j and diode D
2In parallel; The above-mentioned relay K j that finishes safety air bag ignition control has a pair of a pair of normal opened contact that connects energy of initiation circuit terminal A and insurance sensor input terminal B respectively at least, in the collision process, under the force of inertia effect, after the acceleration switch K conducting, the relay effect, thus make this junction closure.
In the technique scheme, acceleration switch K by with diode D
1Anode bonded assembly conductive shell, be located at coasting body, spring, conductive sleeve, the bench insulator in this housing and be fixed in and connect the electricity pin with the power supply bonded assembly on the bench insulator and form, the conductive sleeve that is electrically connected with housing is located on the bench insulator, spring one end contacts with conductive sleeve and is spacing by bench insulator, its other end is spacing by coasting body, and conductive pin has to stretch out to be inserted in the spring from bench insulator can realize the free end that itself and coasting body electrically contact.
Sensor of the present utility model changes relay circuit by its acceleration switch, finishes the ignition control to air bag device.Through test, function of the present utility model and technical index all are not less than spring type or torsional spring type sensor, its reliable operation; And used device such as acceleration switch, cond, relay, diode volume are little, are installed on the same wiring board, are adapted to the single-point type air bag device especially; Simultaneously, the utility model is with low cost, produces debugging easily.
The utility model is described in further detail below in conjunction with embodiment:
Fig. 1 is an electrical equipment connection diagram of the present utility model.
Fig. 2 is the structural representation of acceleration switch in the utility model.
As shown in Figure 1 and Figure 2, the utlity model has acceleration switch K, cond C, relay K j, diode D
1And D
2, acceleration switch K and reverse bonded assembly diode D
1And D
2Be series between power line voltage and the ground wire diode D
1Conducting, diode D
2End diode D
2Plus earth, cond C, relay K j and diode D
2In parallel.Acceleration switch K by with diode D
1Anode bonded assembly conductive shell 6, be located at coasting body 5, spring 4, conductive sleeve 3, the bench insulator 2 in this housing and be fixed in and connect electricity pin 1 with the power supply bonded assembly on the bench insulator and form, the conductive sleeve 3 that is electrically connected with housing is located on the bench insulator 2, spring 4 one ends contact with conductive sleeve and are spacing by bench insulator 2, and its other end is spacing by coasting body 5.Conductive pin has to stretch out to be inserted in the spring from bench insulator can realize the free end that itself and coasting body electrically contact.The bench insulator outer face has solid envelope material 7.Connect electricity pin 1 and housing 6 not conductings at ordinary times, during collision, under the force of inertia effect, coasting body 5 compression springs 4 and moving, and contact with connecing electricity pin 1 make to connect electricity pin 1 and housing 6 conductings, thereby make the circuit conversion of relay K j.By design calculation and debugging, can make this acceleration switch by predetermined acceleration rate threshold and predetermined in-service time, the circuit of switching relay Kj.The above-mentioned relay K j that finishes the sensor that ignition is controlled to safety air bag has a pair of a pair of normal opened contact that connects energy of initiation circuit terminal A and insurance sensor input terminal B respectively, energy of initiation is cut off at ordinary times, after the acceleration switch K conducting, this junction closure, air bag promptly acts on.Because acceleration switch K conducting under the force of inertia effect is instantaneous, the utlity model has a cover time delay circuit.When the K conducting, power supply is by diode D
1To charge of a capacitor, after K disconnected, cond C charged to relay, and the time constant RC that the electric capacity of cond and relay-coil resistance R constitute has determined the time length after the circuit conversion, adjusted the acting duration that capacitance can obtain to stipulate.Diode D
1Effect be to prevent the cond reverse charging, diode D
2Effect be to prevent that inverse electromotive force from damaging relay K j.Because acceleration switch K is nonpolarity, also housing 6 can be connected with power supply in the utility model, meet electricity pin 1 and diode D
1Anode connect.
Claims (2)
1, a kind of electromechanical crash sensor of Control of Automobile air bag device has acceleration switch, it is characterized in that described acceleration switch K and cond C, relay K j, diode D
1And D
2The circuit that constitutes is connected, this acceleration switch K and reverse bonded assembly diode D
1And D
2Be series between power line voltage and the ground wire diode D
1Conducting, diode D
2End diode D
2Plus earth, cond C, relay K j and diode D
2In parallel; The above-mentioned relay K j that finishes safety air bag ignition control has a pair of a pair of normal opened contact that connects energy of initiation circuit terminal A and insurance sensor input terminal B respectively at least, after the acceleration switch K conducting, and this junction closure.
2, the electromechanical crash sensor of Control of Automobile air bag device according to claim 1, it is characterized in that acceleration switch K by with diode D
1Anode bonded assembly conductive shell (6), be located at coasting body (5), spring (4), conductive sleeve (3), the bench insulator (2) in this housing and be fixed on the bench insulator and connect electricity pin (1) composition with the power supply bonded assembly, the conductive sleeve that is electrically connected with housing (3) is located on the bench insulator (2), spring (4) one ends contact with conductive sleeve and are spacing by bench insulator (2), its other end is spacing by coasting body (5), and conductive pin has to stretch out to be inserted in the spring from bench insulator can realize the free end that itself and coasting body electrically contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98252118 CN2335840Y (en) | 1998-12-28 | 1998-12-28 | Mechanoelectric collision transducer for controlling automotive safety air bag device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98252118 CN2335840Y (en) | 1998-12-28 | 1998-12-28 | Mechanoelectric collision transducer for controlling automotive safety air bag device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2335840Y true CN2335840Y (en) | 1999-09-01 |
Family
ID=33995854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98252118 Expired - Lifetime CN2335840Y (en) | 1998-12-28 | 1998-12-28 | Mechanoelectric collision transducer for controlling automotive safety air bag device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2335840Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101473538B (en) * | 2006-06-30 | 2011-12-07 | 瑞萨电子株式会社 | Semiconductor integrated-circuit device |
-
1998
- 1998-12-28 CN CN 98252118 patent/CN2335840Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101473538B (en) * | 2006-06-30 | 2011-12-07 | 瑞萨电子株式会社 | Semiconductor integrated-circuit device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ORIENTAL YONGJIU SAFE AIRBAG LTD. Free format text: FORMER OWNER: ZHANG GENFA Effective date: 20080118 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080118 Address after: Hebei province Xinle City South Road No. 8, zip code: 050700 Patentee after: East Joy Long Motor Airbag Co., Ltd. Address before: No. 8, South Ring Road, Hebei, Xinle: 050700 Patentee before: Zhang Genfa |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |