CN212843850U - Oil level sensor - Google Patents
Oil level sensor Download PDFInfo
- Publication number
- CN212843850U CN212843850U CN202021772491.9U CN202021772491U CN212843850U CN 212843850 U CN212843850 U CN 212843850U CN 202021772491 U CN202021772491 U CN 202021772491U CN 212843850 U CN212843850 U CN 212843850U
- Authority
- CN
- China
- Prior art keywords
- pipe portion
- reed switch
- resistor
- level sensor
- tongue tube
- 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 - Fee Related
Links
- 230000006698 induction Effects 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 235000014676 Phragmites communis Nutrition 0.000 claims description 30
- 239000000446 fuel Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
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- Level Indicators Using A Float (AREA)
Abstract
The utility model discloses an oil level sensor relates to liquid level sensing technical field, including hollow pipe portion, the upper end of pipe portion is provided with stifled head, and the lower extreme of stifled head is provided with connecting portion, connecting portion are provided with the external screw thread, the outer wall of pipe portion is provided with and follows gliding slider portion about the pipe portion, the fixed magnetic substance that is provided with in slider portion, the inner chamber of pipe portion is provided with tongue tube sensing circuit, tongue tube sensing circuit can produce the not current of equidimension according to the not co-altitude position of magnetic substance. The utility model discloses a tongue tube carries out the induction measurement oil tank oil level, directly adopts the threaded connection oil tank simultaneously, has the structure succinct, measure accurate, low cost, advantage that the practicality is strong.
Description
Technical Field
The utility model belongs to the technical field of the liquid level response technique and specifically relates to an oil level sensor is related to.
Background
The vehicle fuel gauge is used to detect and display the level of fuel in the vehicle fuel tank, and is typically monitored by a liquid level gauge. In order to measure oil level, special design in the oil tank accurately the utility model discloses.
SUMMERY OF THE UTILITY MODEL
The utility model provides an oil level sensor adopts following technical scheme: the utility model provides an oil level sensor, includes hollow pipe portion, the upper end of pipe portion is provided with stifled head, and the lower extreme of stifled head is provided with connecting portion, connecting portion are provided with the external screw thread, the outer wall of pipe portion is provided with can follow gliding slider portion about the pipe portion, the fixed magnetic substance that is provided with in the slider portion, the inner chamber of pipe portion is provided with tongue tube induction circuit, tongue tube induction circuit can produce the not current of equidimension according to the not co-altitude position of magnetic substance.
Preferably, the reed switch sensing circuit comprises a plurality of parallel reed switch-resistor combinations, and each reed switch-resistor combination comprises a reed switch and a resistor which are connected in series.
Further, each reed switch in the plurality of reed switch-resistor combinations is the same, and the size of each resistor is different.
Further, the dry reed pipes are uniformly distributed along the length direction of the pipe part.
The utility model discloses a tongue tube carries out the induction measurement oil tank oil level, directly adopts the threaded connection oil tank simultaneously, has the structure succinct, measure accurate, low cost, advantage that the practicality is strong.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an internal circuit board;
fig. 3 is a schematic circuit diagram.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the fuel level sensor is composed of a tube portion 1, a plug portion 2, a connecting portion 3, and a slider portion 4. Wherein pipe portion 1 is hollow, and the upper end of pipe portion 1 is provided with end cap portion 2, and the lower extreme of end cap portion 2 is provided with connecting portion 3, and connecting portion 3 are provided with the external screw thread and are used for being connected fixedly with the oil tank. The outer wall of the pipe part 1 is provided with a slide block part 4 which can slide up and down along the pipe part 1, and a magnet block (not shown in the figure) is fixedly arranged on the slide block part 4. The plugging part 2 is provided with a lead 5 externally connected with a direct current 12V power supply, the inner end of the pipe is connected with a circuit board 6 arranged in the inner cavity of the pipe part 1, and the outside of the pipe is also connected with a current type oil level meter. A plurality of reed switches are uniformly distributed on the circuit board 6 from top to bottom, namely a first reed switch 71, a second reed switch 72, a third reed switch 73 and a fourth reed switch 74 … …, the circuit schematic diagram of the circuit is shown in fig. 3, the reed switch sensing circuit comprises a plurality of parallel reed switch-resistor combinations, each reed switch-resistor combination comprises a reed switch and a resistor which are connected in series, the resistors are respectively a first resistor, a second resistor, a third resistor and a fourth resistor … …, the first reed switch 71, the second reed switch 72, the third reed switch 73 and the fourth reed switch 74 … … have the same size specification, but the resistance values of the first resistor, the second resistor, the third resistor and the fourth resistor … … are sequentially increased, so that when the slider part 4 floats on the liquid level of the oil tank, and the magnet is at the height position of the first reed switch 71, the first reed switch 71 is conducted under the action of a magnetic field, the generated current is the largest, and by analogy, the current is gradually reduced along with the reduction of the liquid level, and the index of the corresponding oil level meter is gradually reduced. The magnitude of the current generated when each reed pipe-resistor combination is conducted is different and corresponds to different oil level heights.
Although the specific embodiments of the present invention have been described above with reference to the accompanying drawings, the scope of the present invention is not limited thereto, and for some technical contents known to those skilled in the art, the detailed description is omitted here, and it should be understood by those skilled in the art that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (4)
1. The utility model provides an oil level sensor, its characterized in that, includes hollow pipe portion, the upper end of pipe portion is provided with stifled head, and the lower extreme of stifled head is provided with connecting portion, connecting portion are provided with the external screw thread, the outer wall of pipe portion is provided with and follows gliding slider portion about pipe portion, the fixed magnetic substance that is provided with in slider portion, the inner chamber of pipe portion is provided with tongue tube induction circuit, tongue tube induction circuit can produce the not equidimension electric current according to the not co-altitude position of magnetic substance.
2. The fuel level sensor of claim 1, wherein the reed switch sensing circuit comprises a plurality of parallel reed switch-resistor combinations, the reed switch-resistor combinations comprising one reed switch and one resistor in series.
3. The fuel level sender of claim 2, wherein each reed switch of the plurality of reed switch-resistor combinations is identical, and each resistor is of a different size.
4. The fuel level sensor according to claim 2, wherein said dry reed pipes are evenly distributed along the length of said tube portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021772491.9U CN212843850U (en) | 2020-08-21 | 2020-08-21 | Oil level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021772491.9U CN212843850U (en) | 2020-08-21 | 2020-08-21 | Oil level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212843850U true CN212843850U (en) | 2021-03-30 |
Family
ID=75138104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021772491.9U Expired - Fee Related CN212843850U (en) | 2020-08-21 | 2020-08-21 | Oil level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212843850U (en) |
-
2020
- 2020-08-21 CN CN202021772491.9U patent/CN212843850U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210330 |