CN2641805Y - Power cut off delay converter - Google Patents
Power cut off delay converter Download PDFInfo
- Publication number
- CN2641805Y CN2641805Y CN 03266665 CN03266665U CN2641805Y CN 2641805 Y CN2641805 Y CN 2641805Y CN 03266665 CN03266665 CN 03266665 CN 03266665 U CN03266665 U CN 03266665U CN 2641805 Y CN2641805 Y CN 2641805Y
- Authority
- CN
- China
- Prior art keywords
- operational amplifier
- relay
- model
- utility
- closed contact
- 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 power-down delayed converter for switching the oil gas on a double-fuel vehicle. The utility model is to add a circuit between a ship-shaped switch and a liquid level sensor, and the circuit comprises an operational amplifier, a relay with a pair of normally closed contact points and relevant components. Because the relevant circuit, which is composed of the operational amplifier and the relay with a pair of normally closed contact points, is added by the utility model, and the electric charging and discharging of capacitance decides whether current of the wire coil of the relay is switched on or not, the closing and the opening of the normally closed contact points can be guaranteed, thereby attaining switching on and off of the gas valve and ensuring the electric power-down time to be delayed two to three seconds so that the safety of driving can be assured.
Description
Technical field: the utility model relates to a kind of oil outage time-delay conversion equipment of gas shift of dual-fuel automobile that is used for.
Background technology: by oil, gas is jointly on the dual-fuel automobile as vehicle ' fuel, it mainly is to be finished by the oil gas conversion equipment on the car that the conversion of two kinds of fuel is used, existing oil gas conversion equipment is made up of operational amplifier and change over switch etc., the conversion equipment of this kind structure is when the automobile frequent starting, the pressing number of times and will increase of rocker type switch in the change over switch, so not only influence switch life, in case and switch loose contact, even switch is got to the relevant position, also do not have corresponding actions, if switch is got to the centre position, air valve is not outage but, and liquefied gas is still sent, and hidden danger easily causes the accident.
Summary of the invention: the purpose of this utility model is, provides a kind of and can cut off the power supply automatically, guarantee the outage time-delay conversion equipment of traffic safety.Technical solution of the present utility model is, one end of rocker type switch 1 joins with air valve and diode 2 simultaneously, this diode plays the effect of forward conduction, its operational amplifier 3 of another termination, the output termination triode 4 of operational amplifier 3, succeed electrical equipment 5 on the collector electrode of triode 4, relay 5 is connected in parallel with diode 6.What the utility model increased is the interlock circuit of operational amplifier and the relay that has a pair of normally-closed contact, utilize discharging and recharging of electric capacity that the power on/off of relay coil is provided, its normally-closed contact closure, disconnection have been guaranteed, thereby realize the switching of air valve, the power-off time of air valve was delayed time 2～3 seconds, and this time is adjustable, has guaranteed traffic safety.
Description of drawings: Fig. 1 is a principle schematic of the present utility model.
Embodiment: rocker type switch 1 joins with fuel tap and air valve respectively, when rocker type switch 1 joins with air valve, connect a diode 2, another termination operational amplifier 3 of diode 2, it is LM124 that this operational amplifier that increases is chosen model, the base stage of the output of operational amplifier 3 and a triode 4 is joined, connect a relay 5 in parallel on the collector electrode of triode 4 with diode 6, the 12V relay 5 of this operational amplifier 3 and triode 4 and normally-closed contact and the diode 6 common delay cut-off circuit of forming, diode 6 discharge and recharge the power on/off that relay 5 coils are provided, guarantee its normally-closed contact closure, disconnect, thereby realize the break-make of air valve, and control the oil gas conversion of dual-fuel vehicle with original level sensing circuit 7 and liquid level display circuit 8.
Claims (1)
1. outage time-delay conversion equipment of forming by rocker type switch, operational amplifier, it is characterized in that, one end of rocker type switch (1) joins with air valve and diode (2) simultaneously, an operational amplifier of the other end adjunction of diode (2) (3), the output termination triode (4) of operational amplifier (3), succeed electrical equipment (5) on the collector electrode of triode (4), relay (5) is connected in parallel with diode (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03266665 CN2641805Y (en) | 2003-07-03 | 2003-07-03 | Power cut off delay converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03266665 CN2641805Y (en) | 2003-07-03 | 2003-07-03 | Power cut off delay converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2641805Y true CN2641805Y (en) | 2004-09-15 |
Family
ID=34298393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03266665 Expired - Fee Related CN2641805Y (en) | 2003-07-03 | 2003-07-03 | Power cut off delay converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2641805Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813007A (en) * | 2010-02-24 | 2010-08-25 | 莫嘉林 | Automatic outage delay device |
-
2003
- 2003-07-03 CN CN 03266665 patent/CN2641805Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813007A (en) * | 2010-02-24 | 2010-08-25 | 莫嘉林 | Automatic outage delay device |
| CN101813007B (en) * | 2010-02-24 | 2014-12-10 | 莫嘉林 | Automatic outage delay device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |