CN2624184Y - Fuel low oil sensing alarm - Google Patents
Fuel low oil sensing alarm Download PDFInfo
- Publication number
- CN2624184Y CN2624184Y CN 03218047 CN03218047U CN2624184Y CN 2624184 Y CN2624184 Y CN 2624184Y CN 03218047 CN03218047 CN 03218047 CN 03218047 U CN03218047 U CN 03218047U CN 2624184 Y CN2624184 Y CN 2624184Y
- Authority
- CN
- China
- Prior art keywords
- oil
- alarm
- fuel
- level sensor
- oil level
- 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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- Level Indicators Using A Float (AREA)
Abstract
The utility model relates to a sensor alarm when the oil level is low. The utility model comprises an oil tube whose lower section can be arranged in the oil tank; the lower section of the oil tube is sleeved with a filter screen; the upper section of the oil tube is provided with a resistance case which holds the variable resistance and oil meter; the sliding arm of the variable resistance is connected with the first floater in the oil tank through a connecting rod. The utility model is characterized in that the oil tube situated at the lower middle is connected with a second floater; the second floater is provided with a permanent-magnet ring; and the permanent-magnet ring is in electromagnetic connection with a dry reed pipe when the oil is in low level; and the dry reed pipe is then connected between the input end of the alarm through the lead wire. No matter the display instrument of the tubular oil sensor demonstrates a precise oil level in the oil tank or not, the utility model is to alarm when the oil in the oil tank is lower than the setting value; thus to warn the driver on the way to fuel.
Description
Technical field
The utility model relates to a kind of oil level sensor alarm, a kind of fuel oil low oil level sensor alarm of more specifically saying so.
Background technology
At present, employed tubular type fuel sensor on motor vehicle oil tank, its structural principle are with reflecting that the float of oil level drives a variohm, by the variation of variohm resistance, with the height of oil level in the Displaying Meter display machines motor vehicle oil box, i.e. what of fuel tank intermediate fuel oil.Its drawback is in long-term use, variohm is owing to there is mechanical wear, thereby the phenomenon of loose contact very easily appears, show oil meter misregister, the fault of even not indicating thereby cause, this fuel oil in the fuel tank will occur and be lower than to set and plant but show that oil meter can not accurately and timely indicate, make the driver can't judge the fuel oil amount of having in the fuel tank, thereby can not guarantee safety, driving on schedule, cause very big inconvenience to the driver to the motor vehicle in travelling.
Summary of the invention
The purpose of this utility model provides the fuel oil low oil level sensor alarm that can send alerting signal when a kind of oil level in fuel tank is lower than setting value.
In order to realize above-mentioned purpose, this fuel oil low oil level sensor alarm, comprise that hypomere can place the oil pipe of fuel tank, the lower end of oil pipe is set with filter screen, the resistance box that includes variable resistor and oil meter is housed on the stage casing of oil pipe, variable-resistance travelling arm is connected with first float that is arranged in fuel tank by connecting rod, its design feature is to be connected with second float on oil pipe is arranged in the hypomere of fuel tank, on second float permanent-magnetic clamp is housed, this permanent-magnetic clamp can constitute electromagnetism with a tongue tube and be connected when low oil level, tongue tube is connected between the input end and ground of alarm by lead.
The second above-mentioned float is to be sleeved on the conduit, and two fixed mounts were connected with oil pipe about this conduit passed through, and tongue tube is contained in the bottom of conduit cavity.
Above-mentioned alarm comprises first order comparator circuit, the differentiating circuit that is connected with the output terminal of first order comparator circuit, second comparator circuit that is connected with the output terminal of differentiating circuit, with the amplifying circuit that the output terminal of second comparator circuit is connected, alarm appliance is the load of amplifying circuit.
Alarm appliance can be a hummer, also can be light emitting diode, can also be hummer and light emitting diode in parallel.
The principle of work of this fuel oil low oil level sensor alarm is: when the fuel oil in the fuel tank is higher than calibration value, be transformed into electric signal by first float in the former tubular type fuel sensor of the concrete oil level of reflection by variable-resistance travelling arm, show by oil meter, because fuel oil is more, do not influence the motor vehicle cruising, thereby the display error of oil meter can be ignored, at this moment, permanent-magnetic clamp on second float is away from tongue tube, contact in the tongue tube is in off-state, the input end of alarm does not form path, and alarm is not worked; When the fuel oil in the fuel tank was lower than calibration value, the permanent-magnetic clamp on second float was near tongue tube, and the magnetic field of permanent-magnetic clamp makes the contact in the tongue tube be in closure state, the input end of alarm forms path, alarm work, alarm appliance sends alerting signal, reminds the driver to add fuel oil.
By above narration as can be known, on motor vehicle, adopt this fuel oil low oil level sensor alarm, no matter be whether fuel level in the shown fuel tank of the Displaying Meter of original tubular type fuel sensor is accurate, when the fuel level in the fuel tank is lower than setting value, alarm just sends alerting signal, reminds the driver travel in road oil in time.
Description of drawings
Embodiment of the present utility model is illustrated in conjunction with the accompanying drawings, wherein:
Fig. 1 is the structural representation of fuel oil low oil level sensor alarm when high oil level;
Fig. 2 is the structural representation of fuel oil low oil level sensor alarm when low oil level;
Fig. 3 is the circuit structure schematic diagram of alarm.
Embodiment
With reference to accompanying drawing, this fuel oil low oil level sensor alarm, comprise that hypomere can place the oil pipe 1 of fuel tank, the lower end of oil pipe 1 is set with filter screen 2, the resistance box 10 that includes variable resistor and oil meter is housed on the stage casing of oil pipe 1, variable-resistance travelling arm is connected with first float 12 that is arranged in fuel tank by connecting rod 11, be arranged at oil pipe 1 on the hypomere of fuel tank by two fixed mounts 7 up and down conduit 8 is housed, be set with second float 4 on the conduit 8, in second float 4 permanent-magnetic clamp 5 is housed, this permanent-magnetic clamp 5 can constitute electromagnetism with a tongue tube 3 and be connected when low oil level, tongue tube 3 is contained in the bottom of conduit 8 inner chambers, be connected on by lead 6 between the input end and ground of alarm 9, alarm 9 comprises first order comparator circuit 13, the differentiating circuit 14 that is connected with the output terminal of first order comparator circuit 13, second comparator circuit 15 that is connected with the output terminal of differentiating circuit 14, the amplifying circuit 16 that is connected with the output terminal of second comparator circuit 15 and the power supply stabilization circuit 18 of foregoing circuit, power supply stabilization circuit 18 is by R1, C1, C2 and three terminal integrated voltage stabilizer IC1 constitute, first order comparator circuit 13 is by R2, R3, R4, R5, R6, R7 and integrated circuit (IC) 2 constitute, differentiating circuit 14 is made of C3 and W1, second comparator circuit 15 is by R8, R9, R10 and integrated circuit (IC) 3 constitute, amplifying circuit 16 is by R11, V1 and alarm appliance 17 constitute, alarm appliance 17 can be a hummer, it also can be light emitting diode, can also be hummer and light emitting diode in parallel, what draw among Fig. 3 be hummer.The principle of work of alarm 9 each circuit is known technologies, not in carefully stating.
Claims (6)
1, a kind of fuel oil low oil level sensor alarm, comprise that hypomere can place the oil pipe (1) of fuel tank, the lower end of oil pipe (1) is set with filter screen (2), the resistance box (10) that includes variable resistor and oil meter is housed on the stage casing of oil pipe (1), variable-resistance travelling arm is connected with first float (12) that is arranged in fuel tank by connecting rod (11), it is characterized in that on oil pipe (1) is arranged in the hypomere of fuel tank, being connected with second float (4), permanent-magnetic clamp (5) is housed on second float (4), this permanent-magnetic clamp (5) can constitute electromagnetism with a tongue tube (3) and be connected when low oil level, tongue tube (3) is connected between the input end and ground of alarm (9) by lead (6).
2, fuel oil low oil level sensor alarm according to claim 1, it is characterized in that alarm (9) comprises first order comparator circuit (13), the differentiating circuit (14) that is connected with the output terminal of first order comparator circuit (13), second comparator circuit (15) that is connected with the output terminal of differentiating circuit (14), with the amplifying circuit (16) that the output terminal of second comparator circuit (15) is connected, alarm appliance (17) is the load of amplifying circuit (16).
3, fuel oil low oil level sensor alarm according to claim 2 is characterized in that alarm appliance (17) is a hummer.
4, fuel oil low oil level sensor alarm according to claim 2 is characterized in that alarm appliance (17) is a light emitting diode.
5, fuel oil low oil level sensor alarm according to claim 2 is characterized in that alarm appliance (17) is hummer and a light emitting diode in parallel.
6, according to claim 1,2,3,4 or 5 described fuel oil low oil level sensor alarms, it is characterized in that second float (4) is to be sleeved on the conduit (8), two fixed mounts (7) were connected with oil pipe (1) about this conduit (8) passed through, and tongue tube (3) is contained in the bottom of conduit (8) inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03218047 CN2624184Y (en) | 2003-06-10 | 2003-06-10 | Fuel low oil sensing alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03218047 CN2624184Y (en) | 2003-06-10 | 2003-06-10 | Fuel low oil sensing alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2624184Y true CN2624184Y (en) | 2004-07-07 |
Family
ID=34243816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03218047 Expired - Fee Related CN2624184Y (en) | 2003-06-10 | 2003-06-10 | Fuel low oil sensing alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2624184Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581594B (en) * | 2009-06-23 | 2010-12-08 | 宁波洛卡特汽车零部件有限公司 | Sealed type automobile oil level sensor |
| CN104330133A (en) * | 2014-11-21 | 2015-02-04 | 东风柳州汽车有限公司 | Extremely-low water level alarming device |
| CN108769927A (en) * | 2018-06-04 | 2018-11-06 | 广州金座网络科技有限公司 | A kind of communication system based on radio network technique |
| CN110887548A (en) * | 2019-11-28 | 2020-03-17 | 四川泛华航空仪表电器有限公司 | Oil level annunciator with overload resistance |
| CN114088166A (en) * | 2021-11-18 | 2022-02-25 | 东莞市西弗莱电子有限公司 | Oil level alarm switch |
-
2003
- 2003-06-10 CN CN 03218047 patent/CN2624184Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581594B (en) * | 2009-06-23 | 2010-12-08 | 宁波洛卡特汽车零部件有限公司 | Sealed type automobile oil level sensor |
| CN104330133A (en) * | 2014-11-21 | 2015-02-04 | 东风柳州汽车有限公司 | Extremely-low water level alarming device |
| CN108769927A (en) * | 2018-06-04 | 2018-11-06 | 广州金座网络科技有限公司 | A kind of communication system based on radio network technique |
| CN110887548A (en) * | 2019-11-28 | 2020-03-17 | 四川泛华航空仪表电器有限公司 | Oil level annunciator with overload resistance |
| CN114088166A (en) * | 2021-11-18 | 2022-02-25 | 东莞市西弗莱电子有限公司 | Oil level alarm switch |
| CN114088166B (en) * | 2021-11-18 | 2024-04-30 | 东莞市西弗莱电子有限公司 | Oil level alarm switch |
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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: 20040707 Termination date: 20110610 |