CN2411483Y - Warner for gas leakage of double-fuel vehicle - Google Patents
Warner for gas leakage of double-fuel vehicle Download PDFInfo
- Publication number
- CN2411483Y CN2411483Y CN 99241858 CN99241858U CN2411483Y CN 2411483 Y CN2411483 Y CN 2411483Y CN 99241858 CN99241858 CN 99241858 CN 99241858 U CN99241858 U CN 99241858U CN 2411483 Y CN2411483 Y CN 2411483Y
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- China
- Prior art keywords
- time
- circuit
- delay
- warner
- circuit board
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- Expired - Fee Related
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Abstract
The utility model relates to a gas leakage warner of a double-fuel vehicle, which comprises a housing and an electronic circuit board arranged in the housing. The utility model is characterized in that a delay time tracking circuit is arranged in the electronic circuit board. According to the different charge and discharge time of a capacitor, delay time is not fixed but varies following the change of parameters of a sensor. Therefore, the utility model fundamentally eliminates the false alarm phenomenon generated after the warner is energized.
Description
The utility model belongs to the auto parts machinery device, specially refers to the warning device that is used for the dual-fuel automobile gas leakage.
In the vehicle traveling process, safety is first important problem, when the employed fuel of automobile leaks, will become the hidden danger that causes accident.Therefore in case gas leakage takes place, in time report to the police and take measures just to become crucial thing.For the automobile of two kinds of fuel, when selecting sensor material, all high susceptibility to be arranged to every kind of material.For example, developed the element of the extremely sensitive sensor of butagas as this dual-fuel automobile Fuel Gas Leak Alarm.Simultaneously, should under the existing power supply supply of automobile condition, carry out warning work.For example, 12V on the employing automobile cigarette lighter or 24V direct supply are as the electric power system on the alarm, in the work of existing alarm, often there are many phenomenons of reporting by mistake because of element fault, therefore, when the design warning circuit, consider the function etc. of warning to Fault Diagnosis function, hummer and luminotron duty.But because of the parameter that ambient condition occurs changes the influence that causes the warning accuracy, do not have a kind of strong solution for sensor self at present, this just needs further to be improved the influence that the compensation sensor parameter changes on circuit.
The purpose of this utility model to produce parameter and changes and impact the such defective of warning accuracy in order to overcome in gas leakage alarm exactly because of sensor is affected by environment, need be reset on alarm circuit, just can overcome above-mentioned defective.
The utility model relies on following technical proposals to realize, a kind of dual-fuel automobile Fuel Gas Leak Alarm, the electronic circuit board, hummer window, gas discrepancy window, pilot lamp and the incoming feeder that comprise body case of annunciator, inside, it is characterized in that, inner electronic circuit board is provided with and makes the unfixed time-delay tracking circuit of delay time part, it is connected after the operational amplifier of comparator circuit, and way circuit is connected on the direct supply of automobile cigarette lighter.
Because the temperature and humidity difference of the sensor state of living in the alarm, to cause Different Effects to its parameter, after sensor output signal is by comparator circuit, be added on the charge and discharge capacitance device set in the delay circuit, will by sensor parameter affected by environment change and make capacitor have the different time that discharges and recharges, thereby to make the time-delay numerical value of delay circuit be not fixed value, thereby play the time-delay tracking effect.
The utility model has the advantages that, because the time-delay tracking circuit is set, make delay time fixing, change with the variation of sensor parameters, this has just fundamentally eliminated the wrong report phenomenon that alarm energising back that this factor causes produces.
Further specify embodiment below in conjunction with accompanying drawing
Description of drawings:
Fig. 1 is the profile and the annexation figure of dual-fuel automobile Fuel Gas Leak Alarm;
Fig. 2 is above-mentioned alarm circuit schematic diagram;
Wherein, body case of annunciator 1 is packaged in the outside of internal electron wiring board 2, includes on the wiring board the extremely sensitive sensor 2.1 of butagas, and sensor one end links to each other with comparator circuit 2.2, be connected to time-delay tracking circuit 2.3 by operational amplifier 358, this circuit comprises discharging capacitor C4; Fault diagnosis circuit 2.4 is connected to the other end of sensor, drives warning circuit 2.5 by operational amplifier 358; The hummer window 3 that is arranged on the body case of annunciator surface can send the buzzing chimes of doom, and pilot lamp 1.1, L2 are respectively power supply indication and the indication of alarm light.Gas discrepancy window 4 can enter for the leakage combustion gas and lean on the into sensor 2.1 at this place, and power feeder 5 is connected on the 12V or 24V direct supply of automobile cigarette lighter.
Claims (2)
1. dual-fuel automobile Fuel Gas Leak Alarm, the electronic circuit board, hummer window, gas discrepancy window, pilot lamp and the incoming feeder that comprise body case of annunciator, inside, it is characterized in that, inner electronic circuit board is provided with and makes the unfixed time-delay tracking circuit of delay time part, it is connected after the operational amplifier of comparator circuit, and way circuit is connected on the direct supply of automobile cigarette lighter.
2. according to the described alarm of claim 1, it is characterized in that time-delay is provided with the charge and discharge capacitance device in the tracking circuit, it will by sensor parameter affected by environment change, and make capacitor have different discharging and recharging the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241858 CN2411483Y (en) | 1999-08-16 | 1999-08-16 | Warner for gas leakage of double-fuel vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241858 CN2411483Y (en) | 1999-08-16 | 1999-08-16 | Warner for gas leakage of double-fuel vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2411483Y true CN2411483Y (en) | 2000-12-20 |
Family
ID=34028644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99241858 Expired - Fee Related CN2411483Y (en) | 1999-08-16 | 1999-08-16 | Warner for gas leakage of double-fuel vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2411483Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115497259A (en) * | 2022-11-17 | 2022-12-20 | 无锡优耐特能源科技有限公司 | Modular false alarm prevention combustible gas leakage alarm device |
-
1999
- 1999-08-16 CN CN 99241858 patent/CN2411483Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115497259A (en) * | 2022-11-17 | 2022-12-20 | 无锡优耐特能源科技有限公司 | Modular false alarm prevention combustible gas leakage alarm 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 |