CN211504335U - High-resolution oil level sensor - Google Patents
High-resolution oil level sensor Download PDFInfo
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- CN211504335U CN211504335U CN202020675969.XU CN202020675969U CN211504335U CN 211504335 U CN211504335 U CN 211504335U CN 202020675969 U CN202020675969 U CN 202020675969U CN 211504335 U CN211504335 U CN 211504335U
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- conduction band
- level sensor
- wire
- oil level
- conducting wires
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Abstract
The utility model discloses a high resolution oil level sensor, including skeleton and metal reed, be equipped with the resistance card between skeleton and the metal reed, be provided with the high density conduction band on the resistance card, the high density conduction band is fan-shaped distribution by many wires and constitutes, the wire quantity of the outer arc department of high density conduction band is more than the wire quantity of the interior arc department of high density conduction band, and the high density conduction band comprises first wire and second wire, is equipped with the second wire between two adjacent first wires. The utility model has the advantages that the resistance card in this oil level sensor utilizes self arc structure, and the characteristic difference of inner radius arc length, outer radius arc length through designing a wire in the circular arc inboard, the scheme of two wires of outside design increases lines quantity to improve the quantity and the density of wire in original within range, make the resistance value of conduction band change for a short time, improved oil level sensor's precision greatly.
Description
The technical field is as follows:
the utility model belongs to the technical field of car oil level sensor, specifically be a high resolution oil level sensor is related to.
Background art:
the fuel level sensor is an important part for detecting the level of fuel in a tank of an automobile, and is a part for detecting the position or height of the fuel in the tank by using the level and change of a float in the fuel caused by the fuel entering the tank and converting the change into a voltage change.
The fuel level sensor is composed of a floater, a float rod, a guide belt, a sliding contact and other parts, wherein the guide belt is also called a thick film resistor disc, namely a sliding rheostat, the resistance value of the guide belt is controlled by the position of the liquid level of fuel oil of the floater, the floater can float up and down along with the change of the residual fuel amount in the fuel tank, so that the float rod can drive the sliding contact to slide, the resistance value of the guide belt can change along with the change of the resistance value, the output voltage of the sensor connected in series in a circuit is changed, and the voltage is reflected on an automobile fuel level meter and converted into the residual fuel amount according to a certain proportion.
The conduction band is formed by many wires in fan-shaped distribution, and under the unchangeable condition of angle, the more that the wire was arranged, then the resistance value variation of conduction band just is littleer, density is higher, and the data of gathering through ECU just can be more accurate for high instrument through calculating like this. The conduction band in the existing oil level sensor has the defects of small quantity of conducting wires and low density due to the process limitation of the density of thick film printing lines, so that the precision and the sensitivity of the whole oil level sensor are not high, and the endurance mileage of an automobile is not accurate.
The utility model has the following contents:
the utility model aims at being not enough to prior art, and provide a high resolution oil level sensor, the resistance card among this oil level sensor utilizes the arc structure of self, and interior radius arc length, the long characteristic difference of outer radius arc length, through at a wire of the inboard design of circular arc, the scheme of two wires of outside design increases lines quantity to improve the quantity and the density of wire, made the resistance value change of conduction band little, improved oil level sensor's precision greatly.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a high resolution oil level sensor, includes skeleton and metal reed, be equipped with the resistance card between skeleton and the metal reed, be provided with high density conduction band on the resistance card, its characterized in that: the high-density conduction band is formed by a plurality of conducting wires which are distributed in a fan shape, and the number of the conducting wires at the outer arc of the high-density conduction band is more than that of the conducting wires at the inner arc of the high-density conduction band.
Preferably, the high-density conduction band is composed of first conducting wires and second conducting wires, and the second conducting wires are arranged between every two adjacent first conducting wires.
Preferably, the lower end of the first conductive wire has a downward extending lower wide portion, and a second conductive wire is disposed above the lower wide portion and on one side of the first conductive wire.
Preferably, in the above technical solution, the number of the second conductive lines is one or two.
As the optimization of the technical scheme, the framework is provided with a pin shaft, the swing arm is hinged to the framework through the pin shaft, and the swing arm is provided with a metal reed.
Preferably, the pin shaft is wound with a spring wire, one end of the spring wire is connected with the output lead, and the other end of the spring wire is welded on the metal spring.
Preferably, in the above-described aspect, the skeleton includes a substrate.
The beneficial effects of the utility model reside in that: the resistance card in the oil level sensor utilizes the arc structure of the resistance card, the length of an inner radius arc and the length of an outer radius arc, and the number of lines is increased by designing a lead at the inner side of an arc and designing a scheme of two leads at the outer side, so that the number and the density of the leads are improved in the original range, the resistance value of a conduction band is small in change, and the precision of the oil level sensor is greatly improved.
Description of the drawings:
fig. 1 is a schematic structural view of a high resolution fuel level sensor according to the present invention;
fig. 2 is a schematic structural view of a high-density conduction band according to the present invention;
FIG. 3 is a schematic view of another embodiment of the high density conduction band of the present invention;
Detailed Description
The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The directions of the upper and lower parts mentioned in the present embodiment are consistent with the directions of the upper and lower parts of the drawings, and are not intended to limit the scope of the present invention, and the changes or adjustments of the relative relationships thereof should be considered as the scope of the present invention without substantial changes in the technical contents.
Referring to fig. 1 to 3, the high-resolution fuel level sensor comprises a framework 1 and a metal reed 3, wherein a resistor disc 4 is arranged between the framework 1 and the metal reed 3, a high-density conduction band 5 is arranged on the resistor disc 4, the high-density conduction band 5 is formed by a plurality of conducting wires which are distributed in a fan shape, and the number of the conducting wires at the outer arc of the high-density conduction band 5 is greater than that of the conducting wires at the inner arc of the high-density conduction band 5.
Further, the high-density conductive tape 5 is composed of a first conductive wire 51 and a second conductive wire 52, and the second conductive wire 52 is disposed between two adjacent first conductive wires 51.
Further, the lower end of the first conductive line 51 has a lower wide portion 511 extending downward, and a second conductive line 52 is disposed above the lower wide portion 511 and on one side of the first conductive line 51.
Further, the number of the second conductive lines 52 is one or two.
Further, a pin shaft 11 is arranged on the framework 1, the swing arm 2 is hinged to the framework 1 through the pin shaft 11, and a metal reed 3 is arranged on the swing arm 2.
Further, the following steps are carried out: the pin shaft 11 is wound with a spring wire 6, one end of the spring wire 6 is connected with an output lead, and the other end of the spring wire 6 is welded on the metal reed 3.
Further, a substrate 7 is disposed in the framework 1.
Claims (7)
1. The utility model provides a high resolution oil level sensor, includes skeleton (1) and metal reed (3), be equipped with resistance card (4) between skeleton (1) and metal reed (3), be provided with high density conduction band (5), its characterized in that on resistance card (4): the high-density conduction band (5) is formed by a plurality of conducting wires in a fan-shaped distribution mode, and the number of the conducting wires at the outer arc of the high-density conduction band (5) is more than that of the conducting wires at the inner arc of the high-density conduction band (5).
2. A high resolution fuel level sensor as claimed in claim 1, wherein: the high-density conduction band (5) is composed of first conducting wires (51) and second conducting wires (52), and the second conducting wires (52) are arranged between every two adjacent first conducting wires (51).
3. A high resolution fuel level sensor as claimed in claim 2, wherein: the lower end of the first conducting wire (51) is provided with a lower wide part (511) extending downwards, and a second conducting wire (52) is arranged above the lower wide part (511) and positioned on one side of the first conducting wire (51).
4. A high resolution fuel level sensor as claimed in claim 2, wherein: the number of the second conductive lines (52) is one or two.
5. A high resolution fuel level sensor as claimed in claim 1, wherein: the swing arm is characterized in that a pin shaft (11) is arranged on the framework (1), the swing arm (2) is hinged to the framework (1) through the pin shaft (11), and a metal reed (3) is arranged on the swing arm (2).
6. The high resolution fuel level sensor of claim 5, wherein: the spring wire (6) is wound on the pin shaft (11), one end of the spring wire (6) is connected with the output lead, and the other end of the spring wire (6) is welded on the metal reed (3).
7. A high resolution fuel level sensor as claimed in claim 1, wherein: a substrate (7) is arranged in the framework (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020675969.XU CN211504335U (en) | 2020-04-28 | 2020-04-28 | High-resolution oil level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020675969.XU CN211504335U (en) | 2020-04-28 | 2020-04-28 | High-resolution oil level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211504335U true CN211504335U (en) | 2020-09-15 |
Family
ID=72404687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020675969.XU Active CN211504335U (en) | 2020-04-28 | 2020-04-28 | High-resolution oil level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211504335U (en) |
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2020
- 2020-04-28 CN CN202020675969.XU patent/CN211504335U/en active Active
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