CN202748104U - High-precision linear fuel sensor - Google Patents
High-precision linear fuel sensor Download PDFInfo
- Publication number
- CN202748104U CN202748104U CN201220415017.XU CN201220415017U CN202748104U CN 202748104 U CN202748104 U CN 202748104U CN 201220415017 U CN201220415017 U CN 201220415017U CN 202748104 U CN202748104 U CN 202748104U
- Authority
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- China
- Prior art keywords
- fuel sensor
- fuel
- precision linear
- wire resistor
- sliding electrode
- 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 - Lifetime
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000002828 fuel tank Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 abstract 4
- 238000009434 installation Methods 0.000 abstract 3
- 239000000295 fuel oil Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Level Indicators Using A Float (AREA)
Abstract
The utility model provides a high-precision linear fuel sensor. The high-precision linear fuel sensor comprises an installation plate which is fixed inside an oil tank, a winding resistance which is fixed below the installation plate along an upright direction, a sliding rod which is fixed below the installation plate along the upright direction, a floater which is capable of being sleeved on the winding resistance and the sliding rod in a moving mode, an output end which is used for outputting numerical values of fuel liquid levels, a bond strap terminal used for inputting electric power, and a sliding electrode which installed on the floater. A first end of the sliding electrode is connected with the winding resistance, the winding resistance is connected with the output end, a second end of the sliding electrode is connected with the sliding rod in an electric mode, and the sliding rod is connected with the bond strap terminal. The high-precision linear fuel sensor is simple in structure, high in precision, accurate in measured data of fuel quantity and reliable in performance.
Description
Technical field
The utility model relates to a kind of fuel sensor, particularly a kind of high-precision linear fuel sensor.
Background technology
In the prior art, the vehicle fuel sensor mainly contains swing arm shape sliding rheostat fuel sensor and linear sliding rheostat fuel sensor.Swing arm shape sliding rheostat fuel sensor is because the existence of swing arm structure, its output characteristics is nonlinear, measuring accuracy is very poor, and swing arm shape sliding rheostat fuel sensor is because the restriction of manufacturing structure, and the total resistance value of slide rheostat wherein is smaller; And the employing of the slide rheostat in the linear sliding rheostat fuel sensor is linear type structure, cause total resistance value can't do greatly, when above-mentioned fuel sensor changed by a small margin in amount of fuel, the resistance change of fuel sensor was minimum, thereby cause resolution low, the problem such as measuring accuracy is poor.
Take a volume as 300 liters, the fuel tank that highly is 500 millimeters is example, when using above-mentioned fuel sensor, because the total resistance value of fuel sensor is approximately 50 Ω, when fuel liquid level changed 10 millimeters, the fuel oil variable quantity was 6 liters, when the variable quantity of fuel sensor output resistance is 1 Ω at this moment, and the variable quantity of fuel sensor output resistance could satisfy and measure needed resolution when 1 Ω is arranged, thus measuring accuracy can only reach ± about 6 liters.Can't carry out the accurate measurement that vehicle fuel amount parameter changes, can not satisfy that automobile energy-saving is reduced discharging the demand that reduce fuel oil consumption improvement and fuel oil are controlled by norm.
The utility model content
The purpose of this utility model is to provide a kind of high-precision linear fuel sensor.It is simple in structure, and precision is high, and the amount of fuel measured data accurately and dependable performance.
In order to achieve the above object, the utility model provides a kind of high-precision linear fuel sensor, and it comprises:
Mounting disc is fixed in the fuel tank;
Wire resistor vertically is fixed in the below of described mounting disc;
Slide bar vertically is fixed in the below of described mounting disc;
Float, that can move is socketed on described wire resistor and the slide bar;
Output terminal is for the numerical value of output fuel liquid level;
The bonding terminals are used for input electric power; And
Sliding electrode is installed on the described float, and the first end of described sliding electrode is electrically connected with wire resistor, and described wire resistor connects described output terminal, and the second end of sliding electrode is electrically connected with slide bar, and described slide bar connects described bonding terminals.
Described high-precision linear fuel sensor, wherein, also comprise warning resistance, described warning resistance vertically is located at the below of described wire resistor, the first end of sliding electrode can be electrically connected with warning resistance, and warning resistance connects the warning terminals and is used for output alarm signal.
The beneficial effects of the utility model are: owing to adopting the Wound-rotor type electric resistance structure, in the length range that fuel sensor allows, improved the total resistance value of slide rheostat, when amount of fuel is changed by a small margin, the output resistance of fuel sensor just can have larger variation, the problems such as thereby it is low to have solved existing fuel sensor resolution, and measuring accuracy is poor are of the present utility model simple in structure, precision is high, and the amount of fuel measured data accurately and dependable performance.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Description of reference numerals: 1-wire resistor; The 2-sliding electrode; The 3-float; The 4-slide bar; The 5-mounting disc; 6-warning resistance.
Embodiment
About the utility model is the application target that reaches above-mentioned and effect and the technological means that adopts, now enumerate better feasible embodiment, and cooperate shown in the accompanying drawing, details are as follows:
At first as shown in Figure 1, be structural representation of the present utility model.The utility model high-precision linear fuel sensor mainly comprises: wire resistor 1, sliding electrode 2, float 3, slide bar 4 and mounting disc 5.
Wherein, a preset height place (not shown) in the fuel tank is fixed in described mounting disc, and described wire resistor 1 and slide bar 4 all vertically are fixed in the below of mounting disc 5.
Described float 3 movably is socketed on described wire resistor 1 and the slide bar 4, and described float 3 can be according to the variation of fuel liquid level and fluctuated in real time.
In conjunction with shown in Figure 2, be circuit theory diagrams of the present utility model again.Wherein, on the described float 3 sliding electrode 2 is installed, the first end of described sliding electrode 2 is electrically connected with wire resistor 1, and described wire resistor 1 connects the numerical value that output terminal is used for the output fuel liquid level, the second end of sliding electrode 2 is electrically connected with slide bar 4, and described slide bar 4 connects the bonding terminals.
In addition, the below of described wire resistor 1 also can be provided with the warning resistance 6 that vertically extends, and described warning resistance 6 connects the warning terminals and is used for output alarm signal.When fuel liquid level was low, the first end of sliding electrode 2 was electrically connected with warning resistance 6, and the second end of sliding electrode 2 still is electrically connected with slide bar 4, and meeting this moment output alarm signal, driver in time replenish fuel oil.
Because the resistance in the high-precision linear fuel sensor of the present utility model adopts the Wound-rotor type structure, in the length range that fuel sensor allows, improved the total resistance value of slide rheostat, when amount of fuel is changed by a small margin, the output resistance of fuel sensor just can have larger variation, the problems such as thereby it is low to have solved existing fuel sensor resolution, and measuring accuracy is poor, it is simple in structure, precision is high, and the amount of fuel measured data accurately and dependable performance.
Still take a volume as 300 liters, the fuel tank that highly is 500 millimeters is example, when using the utility model high-precision linear fuel sensor, the total resistance value of fuel sensor can be accomplished more than 500 Ω, if the total resistance value of fuel sensor is 500 Ω, when fuel liquid level changed 1 millimeter, the fuel oil variable quantity was 0.6 liter, the variable quantity of fuel sensor output resistance can reach 1 Ω, thus measuring accuracy can reach ± more than 0.6 liter.
Above is illustrative to description of the present utility model; and it is nonrestrictive; those skilled in the art is understood, and can carry out many modifications, variation or equivalence to it within spirit that claim limits and scope, but they will fall in the protection domain of the present utility model all.
Claims (2)
1. a high-precision linear fuel sensor is characterized in that, comprising:
Mounting disc is fixed in the fuel tank;
Wire resistor vertically is fixed in the below of described mounting disc;
Slide bar vertically is fixed in the below of described mounting disc;
Float, that can move is socketed on described wire resistor and the slide bar;
Output terminal is for the numerical value of output fuel liquid level;
The bonding terminals are used for input electric power; And
Sliding electrode is installed on the described float, and the first end of described sliding electrode is electrically connected with wire resistor, and described wire resistor connects described output terminal, and the second end of sliding electrode is electrically connected with slide bar, and described slide bar connects described bonding terminals.
2. high-precision linear fuel sensor according to claim 1, it is characterized in that, also comprise warning resistance, described warning resistance vertically is located at the below of described wire resistor, the first end of sliding electrode can be electrically connected with warning resistance, and warning resistance connects the warning terminals and is used for output alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220415017.XU CN202748104U (en) | 2012-08-21 | 2012-08-21 | High-precision linear fuel sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220415017.XU CN202748104U (en) | 2012-08-21 | 2012-08-21 | High-precision linear fuel sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202748104U true CN202748104U (en) | 2013-02-20 |
Family
ID=47707482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220415017.XU Expired - Lifetime CN202748104U (en) | 2012-08-21 | 2012-08-21 | High-precision linear fuel sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202748104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323422A (en) * | 2016-09-14 | 2017-01-11 | 合肥京东方光电科技有限公司 | Liquid level sensor, liquid processing equipment and liquid detection method |
| CN108917878A (en) * | 2018-08-07 | 2018-11-30 | 江西清华泰豪三波电机有限公司 | A kind of device and method changing resistive sensor resistance size |
-
2012
- 2012-08-21 CN CN201220415017.XU patent/CN202748104U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323422A (en) * | 2016-09-14 | 2017-01-11 | 合肥京东方光电科技有限公司 | Liquid level sensor, liquid processing equipment and liquid detection method |
| CN108917878A (en) * | 2018-08-07 | 2018-11-30 | 江西清华泰豪三波电机有限公司 | A kind of device and method changing resistive sensor resistance size |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |