CN2074012U - Liquid level sensor of automobile liquefied gas tank - Google Patents
Liquid level sensor of automobile liquefied gas tank Download PDFInfo
- Publication number
- CN2074012U CN2074012U CN 90208314 CN90208314U CN2074012U CN 2074012 U CN2074012 U CN 2074012U CN 90208314 CN90208314 CN 90208314 CN 90208314 U CN90208314 U CN 90208314U CN 2074012 U CN2074012 U CN 2074012U
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- Prior art keywords
- liquid level
- float
- resistance
- pipe body
- series
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- 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.)
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- Level Indicators Using A Float (AREA)
Abstract
The utility model provides a liquid level sensor of automobile liquefied gas tank, comprising a copper pipe body whose bottom is sealed and a float which enclasps the pipe body. The upper part of the pipe body is provided with a sealing hollow bolt in which a liquid level measuring screw of a liquified gas tank can be screwed. Each different position in the pipe body is provided with a reed pipe which is leaded out by a conducting wire and is connected with a series resistor. The float is sealed with an annular magnet which floats on the liquid surface and can move up and down following the liquid level. The magnet in the float makes the reed pipe in the relevant position attracted, and the relevant resistor is short-circuited. So the total resistance of the series resistors can change following the height variation of the liquid level. The sensor can be matched with the fuel gauge of a vehicle and can work in a sealing tank.
Description
The utility model relates to the automobile liquid gas storage tank liquid level sensor that a kind of liquid level sensor of sealable tank, the particularly patent No. are 87216695.3 " with the gasoline engine fuel feedway of liquefied petroleum gas (LPG) ".
The level gauging of existing automotive oil tank is to be finished by fuel level gauge, tank sensor, and its sensor can not seal in fuel tank, thereby can not be used in the liquid gas storage tank.
It is (supporting with the automotive oil scale) sensor that the automobile liquid gas storage tank level gauging of fuel is used that task of the present utility model provides a kind of being suitable for the liquefied gas, and this sensor can carry out work in the sealing flow container.
Task of the present utility model is finished as follows: it is made up of the copper pipe body and the float of bottom sealing.A sealing hollow bolt that can screw in liquid gas storage tank liquid level test screw socket is arranged at body top, and variant from the lower to the upper position is equipped with reed capsule in the copper pipe body, and reed capsule is drawn lead and connect resistance in series.Float is to encircle body, and envelope has ring-shaped magnet in it, and it floats over liquid level, can move up and down with liquid level.Magnet in the float makes the reed capsule adhesive of relevant position in the body, the corresponding resistance of short circuit, make total change in resistance of resistance in series, its total resistance is corresponding with liquid level, it can with the supporting use of automotive oil scale, the circuit of this sensor all is contained in the body, and the inside and outside wall of body is isolated, can carry out work in the sealing gas tank.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the automobile liquid gas storage tank liquid level sensor electrical schematic diagram that the utility model provides.
Fig. 2 is the longitudinal sectional drawing of a kind of concrete structure of automobile liquid gas storage tank liquid level sensor.
Describe concrete structure of the present utility model and working condition in detail below in conjunction with embodiment that provides and accompanying drawing thereof.
This sensor is made up of the two large divisions: copper pipe body 8 and float 10.The round bottom of copper pipe body 8 bottoms sealing has outward extending block 11, and a sealing hollow bolt 7 that can screw in liquid gas storage tank liquid level test screw socket is arranged at body 8 tops.Variant from the lower to the upper position is equipped with ten reed capsule K9-K0 in the body, and the circuit board 6 of series resistor R8-R1 is housed in the hollow of the hollow bolt 7 on body top, and the gland 5 of band binding post is pressed on circuit board 6 in the hollow of bolt 7.Each reed capsule K9-K0 one end all connects the binding post 1 on the binding post gland 5, series resistor R8 end also connects binding post 1, series resistor R1 termination binding post 4, another termination minimum liquid level warning binding post 2 of the reed capsule K9 of minimum liquid level, between another termination R7 and R8 of reed capsule K8, between another termination R7 and R6 of reed capsule K7 ... between another termination R2 and R1 of reed capsule K2, another termination of reed capsule K1 allows the high liquid level warning binding post 4 that fills.Another termination extra-high-speed liquid level danger warning binding post 3 of the reed capsule K0 of most significant digit.
Float 10 is being encircled body 8, and its inner envelope has ring-shaped magnet 9, and float 10 can float over liquid level, can move up and down with liquid level, and block 11 can prevent that float 10 from deviating from from body.Float internal magnet 9 makes the interior corresponding reed capsule adhesive of the body of position, changes total resistance of resistance in series, its value reflection liquid level.
During use binding post 1 is connect the automobile power source negative pole, bull alarm Y positive pole is connect the automobile power source positive pole, binding post 2,3,4 connects each end of reporting to the police of bull alarm respectively, and automotive oil scale positive pole connects positive source, and negative pole connects with binding post 4.The gas tank liquid level descends, float 10 descends thereupon, when liquid level drops to minimum liquid level, magnet 9 in the float 10 faces reed capsule K9, the K9 adhesive, send the minimum liquid level alerting signal, can notify to fill to add liquefied gas, add in the liquefied gas process filling, liquid level raises gradually, K8-K1 is adhesive one by one, and the corresponding resistance of short circuit is when liquid level is raised to K1, be the highest liquid level reed capsule K1 that allows to fill with all series resistor short circuits, fuel level gauge G full scale is connected by binding post 4 simultaneously and is allowed to fill high liquid level warning, can stop to fill liquefied gas.If liquid level is elevated to the K0 position during temperature rising volumetric expansion, promptly send danger alarm signal, need take certain measure, its liquid level is fallen back on allow to fill liquid level.
Ring-shaped magnet 9 on float 10 overmolded with plastic, the sensor body is made by copper pipe, float is enclosed within the copper pipe body after, shut pipe and add weldering block 11 end, the hollow bolt 7 of body 8 upper ends can weld.This sensor directly adopts the automotive oil scale, to general automobile use oil instead, two kinds of fuel vehicles of liquefied gas are very convenient.
Claims (3)
1, a kind of by bottom sealing copper pipe body 8 and encircling body 8 in it envelope can float over the automobile liquid gas storage tank liquid level sensor that liquid level can be formed with the float 10 that liquid level moves up and down by ring-shaped magnet 9, variant from the lower to the upper position is equipped with reed capsule in the copper pipe body 8, each reed capsule is connected to the series resistor on body 8 tops, when float 10 moves with liquid level, the reed capsule of relevant position in the body 8 is connected, the resistance of short circuit relevant position, make the corresponding liquid level of change in resistance sign of resistance in series, it is characterized by body 8 tops has a sealing hollow bolt 7 that can screw in liquid gas storage tank liquid level test screw socket.
2, automobile liquid gas storage tank liquid level sensor according to claim 1, it is characterized in that: the circuit board 6 of resistance in series is installed in the hollow of bolt 7; Also have a circuit board 6 to be pressed on binding post gland 5 in bolt 7 hollows with resistance in series.
3, automobile liquid gas storage tank liquid level sensor according to claim 1, the round bottom that it is characterized by the sealing of body 8 bottoms has the outward extending block 11 that prevents that float 10 from skidding off from body 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90208314 CN2074012U (en) | 1990-06-06 | 1990-06-06 | Liquid level sensor of automobile liquefied gas tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90208314 CN2074012U (en) | 1990-06-06 | 1990-06-06 | Liquid level sensor of automobile liquefied gas tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2074012U true CN2074012U (en) | 1991-03-27 |
Family
ID=4888584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90208314 Withdrawn CN2074012U (en) | 1990-06-06 | 1990-06-06 | Liquid level sensor of automobile liquefied gas tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2074012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100338442C (en) * | 2005-04-22 | 2007-09-19 | 合肥邦立电子有限公司 | Oil box level sensor for vehicle |
-
1990
- 1990-06-06 CN CN 90208314 patent/CN2074012U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100338442C (en) * | 2005-04-22 | 2007-09-19 | 合肥邦立电子有限公司 | Oil box level sensor for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |