CN204963950U - Compact form electric capacity oil level fuel quantity sensor rises - Google Patents
Compact form electric capacity oil level fuel quantity sensor rises Download PDFInfo
- Publication number
- CN204963950U CN204963950U CN201520663652.3U CN201520663652U CN204963950U CN 204963950 U CN204963950 U CN 204963950U CN 201520663652 U CN201520663652 U CN 201520663652U CN 204963950 U CN204963950 U CN 204963950U
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- electrode
- pole
- fuel
- oil level
- utmost point
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- Expired - Fee Related
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
Compact form electric capacity oil level fuel quantity sensor rises, by the utmost point in the electrode and cover establish in the electrode utmost point outside the outer utmost point of electrode, gather the control chip of oil level information and the electrode base that goes on sealing to the utmost point bottom electrode outside constitutes, utmost point tail end is the tapering structure in the electrode, the interior head end extremely of electrode is equipped with the nut, through screwing up the nut, it tightly sets up in the recess to rise by extremely tail end in the electrode. Mode and the tapering structure of this sensor in order to measure the multistage capacitance value realizes the sensor oil level and measures, measures stably.
Description
Technical field
The utility model relates to fuel-quantity transducer, and the mode adopting sectional capacitance to measure specifically carries out the swelled capacitance fuel level fuel-quantity transducer of oil-level measurement.
Background technology
Automobile oil level sensor can be used for detecting the oil level in fuel oil box, current automobile oil level sensor mostly is swept resistance formula, due to road bump, swept resistance high frequency rubs, very easily aging.Cause fuel level in tank to be measured inaccurate, make troubles to driving.The ball float of swept resistance and lever are in bigoted position, fuel tank center, can not accurately show oil level position when the gradient occurs on ground.Oil level is shown on the low side when going up a hill when travelling in hill path, oil level is shown on the high side when going down the hill, the current Some vehicles that still has uses second generation dry-reed fuel level sensor to make moderate progress to above-mentioned defect, but along with the development of auto industry is to the demand of accurate oil consumption, dry-reed is difficult to meet its accuracy requirement.Due to the restriction of tongue tube volume, can not arrange overstocked.So tongue tube fuel level sensor full accuracy is at 3-5cm.Due to vehicle vibrations of jolting under steam, the frequent adhesive of tongue tube, reduces its serviceable life.Be difficult to meet Hyundai Motor growth requirement.
And existing automobile oil level sensor has multiple according to acquisition mode, and there is different defect in the sensor of different acquisition mode, such as: resistance sensor rubs because exist between brush and coil or resistive film, therefore need to input larger energy, wearing and tearing not only reduce serviceable life and reduce reliability, and can measuring accuracy be reduced, resolution is lower, dynamic response is poor, Reed pipe type sensor resolution is low is not suitable for the little product design of error range: contact capacity is little, contact easily produce shake and contacts resistance large, malfunction elimination operation is many.
Utility model content
For solving the problems of the technologies described above, adopting a kind of swelled capacitance fuel level fuel-quantity transducer, to measure mode and the tapered configuration of multistage capacitance, realizing sensor oil-level measurement, Measurement sensibility.
For realizing above-mentioned utility model object, the technical solution adopted in the utility model is: swelled capacitance fuel level fuel-quantity transducer, by the outer pole of pole in electrode and the electrode be set in electrode outside pole, gather the control chip of oil level information, and to the electrodes base composition that the outer bottom, pole of electrode seals, electrode outer extremely on be provided with multiple oil supply hole, the cavity for oil storage is provided with between pole in the outer pole of electrode and electrode, described electrodes base is provided with the groove establishing pole in electrode for card, in electrode extremely on be enclosed with the Copper Foil of multisection type, each section of Copper Foil is connected with control chip by gathering electric wire, in described electrode, pole tail end is tapered configuration, in electrode, the head end of pole is provided with nut, pass through tightening nuts, the tail end tensioner of pole in electrode is arranged in groove.
In electrode described in the utility model, pole is fastened at groove tail end is tapered, the shape of groove and tail end mating shapes.
The hop count of Copper Foil described in the utility model is five sections.
Multiple oil supply hole described in the utility model is oppositely arranged on the both sides of the outer pole of electrode.
Multiple oil supply hole described in the utility model is at least provided with two in same level.
The utility model beneficial effect is:
1, principle design level sensing terminal--the liquid level sensor of electric capacity is used; Adopt the practice of five segmentations, improve accuracy of detection, power reaches 1mm.
2, this sensor construction adopts tapered configuration bottom central electrode, solve electrode two ends fixation and cause electrode centers to depart from causing with crimp measuring the not high technical matters of oil level precision.Anti-vibration resistance is strong, and electrode offset is little, and measuring accuracy is high.
3, oil supply hole is arranged on the both sides of the outer pole of electrode, when oil level not at ordinary times, reduce error from both sides oil-feed.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model;
In figure: 1, pole in electrode, 2, the outer pole of electrode, 3, electrodes base, 301, groove, 4, oil supply hole, 5, cavity, 6, Copper Foil, 7, O RunddichtringO, 8, electrical appliance kit upper cover, 9, electrical appliance kit, 10, nut, 11, trim ring, 12, four fluorine tube.
Embodiment
As shown in the figure, swelled capacitance fuel level fuel-quantity transducer, by pole in electrode be set in the outer pole of electrode in electrode outside pole, gather the control chip of oil level information and form the electrodes base that the outer bottom, pole of electrode seals, electrode outer extremely on be provided with multiple oil supply hole, the cavity for oil storage is provided with between pole in the outer pole of electrode and electrode, described electrodes base is provided with the groove establishing pole in electrode for card, in electrode extremely on be enclosed with the Copper Foil of multisection type, each section of Copper Foil is connected with control chip by gathering electric wire.
In electrode described in the utility model, pole is fastened at groove tail end is tapered, the shape of groove and tail end mating shapes, the diameter of the tail end of pole in electrode can be diminished, make pole tail end forming station hierarchic structure in electrode, whole tail end is snapped in groove, the end face of groove mates completely with pole bench floor in electrode, complete clamping, namely this structure achieves sealing effectiveness, make again pole in electrode more stable, simultaneously pole head end fixing in electrode, by adding nut at head end, by jam-packed nut, press down pole in electrode, the mode and the groove that pole in electrode are passed through tensioner realize fixing, anti-vibration resistance is strong, electrode offset is little.Measuring accuracy is high.
The hop count of Copper Foil described in the utility model is five sections, only with the variable quantity measuring liquid place section, can draw liquid residue.
Multiple oil supply hole described in the utility model is oppositely arranged on the both sides of the outer pole of electrode, and when liquid level is unstable, both sides, pole oil-feed from electrode, ensures the liquid level stabilizing in cavity, can not produce too big error.
Multiple oil supply hole described in the utility model is at least provided with two in same level, same level is formed and is communicated with effect, ensure oil-feed speed, many groups can be arranged the end of to top along electrode outer pole outer wall, optimum set-up mode arranges two groups of oil supply holes in the outer bottom, pole of electrode by two surface levels, namely ensure that oil-feed speed, pasta can not being made again to impact sensor measurement when rocking.
In electrode, the head end of pole and the outer pole of electrode adds electrical appliance kit, by nut and trim ring, pole in electrode and the outer pole of electrode are fixed on the bottom surface of electrical appliance kit, O RunddichtringO can be added between electrical appliance kit bottom surface and the outer pole of electrode, prevent from oil-feed from affecting to detect, also in the outer pole of electrode and electrode, O RunddichtringO can be added between pole, electrical appliance kit is for placing control chip, and control chip gathers the capacitance variation of five sections of Copper Foils, and counts out oily surplus in fuel tank according to change.
Capacitance type sensor adopts two electrodes to form a plate condenser, electric capacity C=￡ × d × s.At two electrode separation d, when electrode pair answers area s to fix.The electric capacity C of sensor is directly proportional to dielectric constant.
The mode of 5 sections is adopted to have following advantage:
First, by the change of the capacitance of every section, parameter can be corrected in real time, realizes adaptive function.
Secondly, because the height of every section is known in the process made, calculate the variable quantity that liquid level only needs to calculate liquid place section, add the maximum height of the section under this section, effectively can improve the accuracy of measurement.
Again, multistage is adopted can to reduce brought error of expanding with heat and contract with cold.
Claims (4)
1. swelled capacitance fuel level fuel-quantity transducer, by pole in electrode (1) and the outer pole (2) of electrode being set in outside, pole in electrode (1), gather the control chip of oil level information, and to electrodes base (3) composition that outer pole (2) bottom of electrode seals, the outer pole (2) of electrode is provided with multiple oil supply hole (4), the cavity (5) for oil storage is provided with between pole (1) in the outer pole (2) of electrode and electrode, described electrodes base (3) is provided with the groove (301) establishing pole in electrode (1) for card, pole (1) is enclosed with the Copper Foil of multisection type in electrode, each section of Copper Foil (6) is connected with control chip by gathering electric wire, it is characterized in that: in described electrode, pole (1) tail end is tapered configuration, in electrode, the head end of pole (1) is provided with nut (10), by tightening nuts (10), the tail end tensioner of pole in electrode (1) is arranged in groove (301).
2. swelled capacitance fuel level fuel-quantity transducer as claimed in claim 1, is characterized in that: the hop count of described Copper Foil (6) is five sections.
3. swelled capacitance fuel level fuel-quantity transducer as claimed in claim 1, is characterized in that: described multiple oil supply holes (4) are oppositely arranged on the both sides of the outer pole (2) of electrode.
4. swelled capacitance fuel level fuel-quantity transducer as claimed in claim 3, is characterized in that: described multiple oil supply holes (4) are at least provided with two in same level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520663652.3U CN204963950U (en) | 2015-08-31 | 2015-08-31 | Compact form electric capacity oil level fuel quantity sensor rises |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520663652.3U CN204963950U (en) | 2015-08-31 | 2015-08-31 | Compact form electric capacity oil level fuel quantity sensor rises |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204963950U true CN204963950U (en) | 2016-01-13 |
Family
ID=55059006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520663652.3U Expired - Fee Related CN204963950U (en) | 2015-08-31 | 2015-08-31 | Compact form electric capacity oil level fuel quantity sensor rises |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204963950U (en) |
-
2015
- 2015-08-31 CN CN201520663652.3U patent/CN204963950U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160113 Termination date: 20200831 |