CN202101738U - Sealing type liquid level and oil level sensor - Google Patents
Sealing type liquid level and oil level sensor Download PDFInfo
- Publication number
- CN202101738U CN202101738U CN2011201969387U CN201120196938U CN202101738U CN 202101738 U CN202101738 U CN 202101738U CN 2011201969387 U CN2011201969387 U CN 2011201969387U CN 201120196938 U CN201120196938 U CN 201120196938U CN 202101738 U CN202101738 U CN 202101738U
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- fixed
- skeleton
- magnet
- liquid level
- type liquid
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Abstract
Provided is a sealing type liquid level and oil level sensor. A buoy is fixedly connected with a buoy rod, a thick film resistor is fixed on a framework, a brush is fixed on an inner rotating support, an inner magnet is fixed on the inner rotating support which is hinged to the framework, an outer rotating support is hinged to the framework, an outer magnet is fixed on the outer rotating support, the buoy rod is fixedly connected to the outer rotating support, and a cover board is fixedly welded to the framework in sealing mode. The thick film resistor and the inner rotating support are arranged in a containing space of the framework, the brush is pressed on an upper guide belt and a lower guide belt of a resistor sheet, and the outer magnet is opposite to the inner magnet. The sealing type liquid level and oil level sensor is driven to work through the inner magnet and the outer magnet and enables parts in the sensor not to be contacted with fuels, thereby being long in service life, high in precision of output resistance value, convenient to maintain and capable of reducing maintenance cost of an automobile.
Description
Technical field:
The utility model 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 to be prone to produce layer of metal sulphur silver oxide film in these oil products, and oxide film can increase contact resistance, and the resistor disc conductor also can be corroded; The initial stage conductor can resistance strengthen; Later stage can make conductor break off, 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, changes very inconvenience, is unfavorable for maintenance, increases the auto repair cost simultaneously.
The utility model content:
The purpose of the utility model is to provide a kind of liquid level sensor of enclosure-type, and it utilizes two inside and outside magnet to come drive work, and its interior part is not contacted with fuel; Its long service life; The output resistance precision is high, and is easy to maintenance, reduced the auto repair cost.
The technological solution of the utility model is following:
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, and thick-film resistor is fixed on the skeleton, and 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 through bearing pin all in said, and bearing pin is fixed on the skeleton.
The electrical connection of said thick-film resistor sheet is drawn the pin embedding and injection molding and on skeleton and with external wire, is electrically connected.
The beneficial effect of the utility model 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 the output resistance precision is high, and is 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 behind the partial cover plate that removes of the utility model
Fig. 2 is the principle structure synoptic diagram of the utility model
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, pin is drawn in resistor disc 10, electrical connection; 11, skeleton; 12, bearing pin.
Embodiment:
Embodiment: see Fig. 1, shown in 2; A kind of enclosure-type liquid level, fuel level sensor comprise float 1, float lever 2, thick-film resistor 9 and brush 8, and 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 said thick-film resistor sheet 9 is drawn pin 10 embedding and injection moldings and on skeleton 11 and with external wire, is electrically connected.
Principle of work: this sensor is owing to can be sealed in resistor disc 9 and interior runing rest 7 in the skeleton 11 through cover plate 3 with brush 8; The buoyancy that in liquid, produces through 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 accomplished 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. 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), and it is characterized in that: thick-film resistor (9) is fixed on the skeleton (11), and 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) sealing is weldingly 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. 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 through bearing pin (12), and bearing pin (12) is fixed on the skeleton (11).
3. 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 |
|---|---|---|---|
| CN2011201969387U CN202101738U (en) | 2011-06-13 | 2011-06-13 | Sealing type liquid level and oil level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201969387U CN202101738U (en) | 2011-06-13 | 2011-06-13 | Sealing type liquid level and oil level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202101738U true CN202101738U (en) | 2012-01-04 |
Family
ID=45387744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201969387U Expired - Lifetime CN202101738U (en) | 2011-06-13 | 2011-06-13 | Sealing type liquid level and oil level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202101738U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252734A (en) * | 2011-06-13 | 2011-11-23 | 浙江湖州新京昌电子有限公司 | Sealed type liquid level and oil level sensor |
| CN103616058A (en) * | 2013-12-06 | 2014-03-05 | 安徽江淮汽车股份有限公司 | Sealed fuel quantity transducer |
| 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 |
-
2011
- 2011-06-13 CN CN2011201969387U patent/CN202101738U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252734A (en) * | 2011-06-13 | 2011-11-23 | 浙江湖州新京昌电子有限公司 | Sealed type liquid level and oil level sensor |
| CN103616058A (en) * | 2013-12-06 | 2014-03-05 | 安徽江淮汽车股份有限公司 | Sealed fuel quantity transducer |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |
|
| CX01 | Expiry of patent term |