CN102252734A - Sealed type liquid level and oil level sensor - Google Patents
Sealed type liquid level and oil level sensor Download PDFInfo
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- CN102252734A CN102252734A CN2011101572413A CN201110157241A CN102252734A CN 102252734 A CN102252734 A CN 102252734A CN 2011101572413 A CN2011101572413 A CN 2011101572413A CN 201110157241 A CN201110157241 A CN 201110157241A CN 102252734 A CN102252734 A CN 102252734A
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Abstract
This invention relates to a sealed liquid level and oil level sensor. A float and a float rod are fixedly connected together, a thick film resistor is fixed on a frame, a brush is fixed to an inner rotary bracket, and an inner magnet is fixed to the inner rotary bracket hinged on the frame; an outer rotary bracket is hinged on the frame, an outer magnet is fixed on the outer rotary bracket, and the float rod is fixedly connected to the outer rotary bracket; a cover plate is fixed on the frame through seal welding, the thick film resistor and the inner rotary bracket are arranged in a containing space of the frame, the brush is pressed on an upper conduction band and a lower conduction band of a resistor disc, and the outer magnet is opposite to the inner magnet. The sensor works under the driving of the inner and outer magnets, so that the inner parts do not contact with the fuel, therefore the sensor has long service life, high precision of output resistance value and convenience maintenance, and the cost in vehicle maintenance and repair is reduced.
Description
Technical field:
The present invention relates to liquid level, fuel level sensor technical field, say that relating to a kind of can being applicable to uses automobile, the motorcycle tank inside of bio-fuel how many frs is measured with having more, send automobile oil gauge to, show the sensor of Fuel Oil Remaining after the processing.
Background technology:
Fuel level sensor is the sensor that automotive oil tank must be equipped, and it can in time indicate the Fuel Remained amount in the fuel tank with after automobile power system, oil level gage are connected.
Traditional liquid level, fuel level sensor adopt accurate thick-film resistor sheet to realize variable resistor, and this working sensor principle is simple, and just a variable resistor is put into fuel tank and got final product.Its contact is directly contacting with fuel oil of opening wide with the thick-film resistor sheet, and serviceable life is short, and its life-span is half a year.This can not being suitable for used in 100% methyl alcohol, 100% ethanol, liquid level (oil level) sensor uses contact surface easily to produce layer of metal sulphur silver oxide film in these oil products, oxide film can increase contact resistance, the resistor disc conductor also can be corroded, the initial stage conductor can resistance strengthen, later stage can make conductor disconnect, and makes the resistance value signal of sensor output error, and this is great test to liquid level (oil level) sensor.In addition, liquid level sensor is installed in fuel tank internal, change very inconvenient, be unfavorable for the maintenance, increase the auto repair cost simultaneously.
Summary of the invention:
The object of the present invention is to provide a kind of liquid level sensor of enclosure-type, it utilizes two inside and outside magnet to come drive work, and its interior part is not contacted with fuel, its long service life, and output resistance precision height, easy to maintenance, reduced the auto repair cost.
Technology solution of the present invention is as follows:
A kind of enclosure-type liquid level, fuel level sensor, comprise float, float lever, thick-film resistor and brush, float and float lever are fixed together, thick-film resistor is fixed on the skeleton, brush is fixed on the interior runing rest, on the runing rest, interior runing rest was hinged on the skeleton in internal magnet was fixed on;
The inner rotary support is hinged on the skeleton, and external magnet is fixed on the inner rotary support, and float lever is fixedly connected on the inner rotary support;
Cover plate for sealing is weldingly fixed on the skeleton, and thick-film resistor, interior runing rest place the receiving space of skeleton, and brush is pressed on the last conduction band and following conduction band of resistor disc, and external magnet is facing to internal magnet.
Runing rest and inner rotary support are that center hinge is connected on the skeleton by bearing pin all in described, and bearing pin is fixed on the skeleton.
The electrical connection of described thick-film resistor sheet is drawn the pin embedding and injection molding and is electrically connected on skeleton and with external wire.
Beneficial effect of the present invention is: 1, it utilizes two inside and outside magnet to come drive work, and its interior part is not contacted with fuel, its long service life, and output resistance precision height, easy to maintenance, reduced the auto repair cost.
2, it can satisfy in the fuel that contains 100% ethanol, 100% methyl alcohol and works, and continuous firing is more than 5,000,000 times, and its work output signal is highly stable.It has reduced maintenance cost, excellent corrosion resistance.
Description of drawings:
Fig. 1 is the schematic perspective view that removes behind the partial cover plate of the present invention
Fig. 2 is a principle structure synoptic diagram of the present invention
Among the figure: 1, float; 2, float lever; 3, cover plate; 4, inner rotary support; 5, external magnet; 6, internal magnet; 7, interior runing rest; 8, brush; 9, resistor disc; 10, pin is drawn in electrical connection; 11, skeleton; 12, bearing pin.
Embodiment:
Embodiment: see shown in Fig. 1,2, a kind of enclosure-type liquid level, fuel level sensor, comprise float 1, float lever 2, thick-film resistor 9 and brush 8, float 1 is fixed together with float lever 2, thick-film resistor 9 is fixed on the skeleton 11, on the runing rest 7, on the runing rest 7, interior runing rest 7 was hinged on the skeleton 11 in internal magnet 6 was fixed in brush 8 was fixed on;
Inner rotary support 4 is hinged on the skeleton 11, and external magnet 5 is fixed on the inner rotary support 4, and float lever 2 is fixedly connected on the inner rotary support 4;
The electrical connection of described thick-film resistor sheet 9 is drawn pin 10 embedding and injection moldings and is electrically connected on skeleton 11 and with external wire.
Principle of work: this sensor is owing to can be sealed in resistor disc 9 and interior runing rest 7 and brush 8 in the skeleton 11 by cover plate 3, the buoyancy that produces in liquid by float 1 drives inner rotary support 4, external magnet 5 on the inner rotary support 4 drives the internal magnet 6 that is sealed on the inner interior runing rest 7, brush 8 in being installed in like this on the runing rest 7 is finished change in resistance output along with the mobile drive brush 8 of float lever 2 moves at resistor disc 9 top offsets.
Claims (3)
1. an enclosure-type liquid level, fuel level sensor, comprise float (1), float lever (2), thick-film resistor (9) and brush (8), float (1) is fixed together with float lever (2), it is characterized in that: thick-film resistor (9) is fixed on the skeleton (11), brush (8) is fixed on the interior runing rest (7), internal magnet (6) is fixed on the interior runing rest (7), and interior runing rest (7) is hinged on the skeleton (11);
Inner rotary support (4) is hinged on the skeleton (11), and external magnet (5) is fixed on the inner rotary support (4), and float lever (2) is fixedly connected on the inner rotary support (4);
Cover plate (3) seal welding is fixed on the skeleton (11), and thick-film resistor (9), interior runing rest (7) place the receiving space of skeleton (11), and brush (8) is pressed on the last conduction band and following conduction band of resistor disc (9), and external magnet (5) is facing to internal magnet (6).
2. a kind of enclosure-type liquid level according to claim 1, fuel level sensor is characterized in that: interior runing rest (7) and inner rotary support (4) all are connected on the skeleton (11) for center hinge by bearing pin (12), and bearing pin (12) is fixed on the skeleton (11).
3. a kind of enclosure-type liquid level according to claim 1, fuel level sensor is characterized in that: the electrical connection of thick-film resistor sheet (9) is drawn pin (10) embedding and injection molding and is gone up and be electrically connected with external wire at skeleton (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101572413A CN102252734A (en) | 2011-06-13 | 2011-06-13 | Sealed type liquid level and oil level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101572413A CN102252734A (en) | 2011-06-13 | 2011-06-13 | Sealed type liquid level and oil level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102252734A true CN102252734A (en) | 2011-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101572413A Pending CN102252734A (en) | 2011-06-13 | 2011-06-13 | Sealed type liquid level and oil level sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102252734A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538903A (en) * | 2012-01-17 | 2012-07-04 | 江苏奥力威传感高科股份有限公司 | Multi-claw wear-resistant oil-resistant liquid level sensor |
| CN103424156A (en) * | 2013-08-07 | 2013-12-04 | 江苏奥力威传感高科股份有限公司 | Semi-closed sensor |
| CN103424161A (en) * | 2013-08-07 | 2013-12-04 | 江苏奥力威传感高科股份有限公司 | Filtering type semi-sealed sensor |
| CN103512637A (en) * | 2012-06-18 | 2014-01-15 | 罗伯特·博世有限公司 | Liquid level measurement device |
| CN104880236A (en) * | 2015-06-23 | 2015-09-02 | 浙江湖州新京昌电子有限公司 | Novel oil level sensor structure |
| CN105737947A (en) * | 2016-02-29 | 2016-07-06 | 广东工业大学 | Magnetic drive type liquid level detecting device |
| CN105910678A (en) * | 2016-04-07 | 2016-08-31 | 黄山永舟仪器有限公司 | Liquid level sensing device for electronic injection fuel pump assembly |
| CN107091670A (en) * | 2017-06-12 | 2017-08-25 | 常州市鼎兴电子有限公司 | A kind of fuel liquid level sensor device |
| CN107870018A (en) * | 2016-09-23 | 2018-04-03 | 韩国自动车部品株式会社 | Fuel tank fuel level sensing device further |
| CN108489575A (en) * | 2018-03-14 | 2018-09-04 | 国网天津市电力公司电力科学研究院 | Float light shading type transformer optical fiber oil level indicator |
| CN109443495A (en) * | 2019-01-16 | 2019-03-08 | 浙江湖州新京昌电子有限公司 | A kind of reluctance type sealing non-contact liquid level sensor |
| CN109724669A (en) * | 2019-01-24 | 2019-05-07 | 广西桂仪科技有限公司 | One kind being used for automobile oil level sensor and its preparation process |
| CN109798954A (en) * | 2019-02-25 | 2019-05-24 | 浙江众泰汽车制造有限公司 | A kind of automobile liquid level sensor |
| CN111521244A (en) * | 2020-05-27 | 2020-08-11 | 河海大学 | Liquid level difference detection device and flood early warning system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2879140Y (en) * | 2006-03-08 | 2007-03-14 | 岳阳万力机械制造有限责任公司 | Sealed oil level sensor |
| WO2008142709A1 (en) * | 2007-05-23 | 2008-11-27 | Pricol Limited | A fluid level sensor and a method thereof |
| CN201780148U (en) * | 2010-02-02 | 2011-03-30 | 常州机械电子工程研究所 | Hall sensor for oil level of automobile |
| CN202101738U (en) * | 2011-06-13 | 2012-01-04 | 浙江湖州新京昌电子有限公司 | Sealing type liquid level and oil level sensor |
-
2011
- 2011-06-13 CN CN2011101572413A patent/CN102252734A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2879140Y (en) * | 2006-03-08 | 2007-03-14 | 岳阳万力机械制造有限责任公司 | Sealed oil level sensor |
| WO2008142709A1 (en) * | 2007-05-23 | 2008-11-27 | Pricol Limited | A fluid level sensor and a method thereof |
| CN201780148U (en) * | 2010-02-02 | 2011-03-30 | 常州机械电子工程研究所 | Hall sensor for oil level of automobile |
| CN202101738U (en) * | 2011-06-13 | 2012-01-04 | 浙江湖州新京昌电子有限公司 | Sealing type liquid level and oil level sensor |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538903B (en) * | 2012-01-17 | 2014-08-20 | 江苏奥力威传感高科股份有限公司 | Multi-claw wear-resistant oil-resistant liquid level sensor |
| CN102538903A (en) * | 2012-01-17 | 2012-07-04 | 江苏奥力威传感高科股份有限公司 | Multi-claw wear-resistant oil-resistant liquid level sensor |
| CN103512637A (en) * | 2012-06-18 | 2014-01-15 | 罗伯特·博世有限公司 | Liquid level measurement device |
| CN103424156A (en) * | 2013-08-07 | 2013-12-04 | 江苏奥力威传感高科股份有限公司 | Semi-closed sensor |
| CN103424161A (en) * | 2013-08-07 | 2013-12-04 | 江苏奥力威传感高科股份有限公司 | Filtering type semi-sealed sensor |
| CN104880236A (en) * | 2015-06-23 | 2015-09-02 | 浙江湖州新京昌电子有限公司 | Novel oil level sensor structure |
| CN105737947A (en) * | 2016-02-29 | 2016-07-06 | 广东工业大学 | Magnetic drive type liquid level detecting device |
| CN105910678A (en) * | 2016-04-07 | 2016-08-31 | 黄山永舟仪器有限公司 | Liquid level sensing device for electronic injection fuel pump assembly |
| CN107870018A (en) * | 2016-09-23 | 2018-04-03 | 韩国自动车部品株式会社 | Fuel tank fuel level sensing device further |
| CN107091670A (en) * | 2017-06-12 | 2017-08-25 | 常州市鼎兴电子有限公司 | A kind of fuel liquid level sensor device |
| CN108489575A (en) * | 2018-03-14 | 2018-09-04 | 国网天津市电力公司电力科学研究院 | Float light shading type transformer optical fiber oil level indicator |
| CN109443495A (en) * | 2019-01-16 | 2019-03-08 | 浙江湖州新京昌电子有限公司 | A kind of reluctance type sealing non-contact liquid level sensor |
| CN109724669A (en) * | 2019-01-24 | 2019-05-07 | 广西桂仪科技有限公司 | One kind being used for automobile oil level sensor and its preparation process |
| CN109798954A (en) * | 2019-02-25 | 2019-05-24 | 浙江众泰汽车制造有限公司 | A kind of automobile liquid level sensor |
| CN111521244A (en) * | 2020-05-27 | 2020-08-11 | 河海大学 | Liquid level difference detection device and flood early warning system |
| CN111521244B (en) * | 2020-05-27 | 2021-03-26 | 河海大学 | Liquid level difference detection device and flood early warning system |
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Application publication date: 20111123 |