CN213455313U - Bipolar capacitance type vehicle-mounted inclination angle sensor - Google Patents
Bipolar capacitance type vehicle-mounted inclination angle sensor Download PDFInfo
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- CN213455313U CN213455313U CN202021515874.8U CN202021515874U CN213455313U CN 213455313 U CN213455313 U CN 213455313U CN 202021515874 U CN202021515874 U CN 202021515874U CN 213455313 U CN213455313 U CN 213455313U
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Abstract
The invention discloses a bipolar capacitor type vehicle-mounted tilt angle sensor which comprises a vehicle-mounted tilt angle sensor main body, a cross rod and a buffer tension spring, wherein the cross rod is installed at the front end of the vehicle-mounted tilt angle sensor main body, the buffer tension spring is arranged on the right side of the front end of the cross rod, a soft rope is arranged at the upper end of the buffer tension spring, a vehicle frame is arranged at the upper end of the soft rope, an axle is arranged at the lower end of the vehicle-mounted tilt angle sensor main body, a middle shaft is arranged in the middle of the front end of the vehicle-mounted tilt angle sensor main body, a first electrode is arranged on. The invention adopts a bipolar capacitor structure, can effectively eliminate the influence of external factors such as ambient temperature, humidity, electromagnetism and the like, and has more accurate and stable measured data.
Description
Technical Field
The invention relates to the technical field of sensors, in particular to a bipolar capacitor type vehicle-mounted tilt angle sensor.
Background
A tilt sensor disclosed in chinese patent application publication No. 201680050248.6 is capable of improving the detection accuracy of tilt information. However, the specific structure is different from that in the present application, and the weight calculation function in the present application is not provided, and the present invention is not applied to a cargo vehicle. Accordingly, the present invention provides a bipolar capacitive vehicle-mounted tilt sensor to solve the above-mentioned problems.
Disclosure of Invention
The present invention is directed to a bipolar capacitive vehicle-mounted tilt sensor, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the bipolar capacitor type vehicle-mounted tilt sensor comprises a vehicle-mounted tilt sensor main body, a cross rod and a buffer tension spring, wherein the cross rod is installed at the front end of the vehicle-mounted tilt sensor main body, the buffer tension spring is arranged on the right side of the front end of the cross rod, a soft rope is arranged at the upper end of the buffer tension spring, a frame is arranged at the upper end of the soft rope, an axle is arranged at the lower end of the vehicle-mounted tilt sensor main body, a middle shaft is arranged at the middle part of the front end of the vehicle-mounted tilt sensor main body, a first electrode is arranged on the upper side of the.
As a further scheme of the invention: the upper end and the lower end of the buffer tension spring are respectively fixedly connected with the soft rope and the cross rod.
As a still further scheme of the invention: both ends all are equipped with the tire about the axle, and the tire is located the four corners department of axle respectively.
As a still further scheme of the invention: calculating the change to the angle by detecting the capacitance change between the first electrode (9) and the second electrode (10) and the common electrode (12), and calculating the formula: the length of the cross bar is a, the distance that the frame moves downward relative to the axle after the vehicle is loaded is delta b-K × T (T is the loading weight), the angle change caused by the change is theta, and the proportional relation between the weight and the angle change can be obtained according to the fact that tan theta is delta b/a-K × T/a. Because the angle changes, Δ C, which is X × θ, changes in capacitance of the bipolar plate (X is a proportionality coefficient of capacitance changing with angle).
As a still further scheme of the invention: the dielectric sheet is positioned on the front sides of the first electrode and the second electrode.
As a still further scheme of the invention: the common electrode is located on the front side of the dielectric sheet.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts a bipolar capacitor structure, can effectively eliminate the influence of external factors such as ambient temperature, humidity, electromagnetism and the like, and has more accurate and stable measured data.
2. The angle of the invention adopts the connection of the soft rope and the buffer tension spring, which can effectively prevent the sensor from being damaged by the vertical and horizontal shaking of the vehicle, and greatly prolong the service life of the sensor.
3. The invention adopts an angle measurement mode to measure the vehicle load, and has the advantages of high measurement precision, simple structure, small volume, low cost, convenient installation and long service life.
4. The invention adopts an angle measuring method and can detect whether the vehicle is loaded or not to cause the inclination of the vehicle.
Drawings
Fig. 1 is a schematic structural diagram of a bipolar capacitive vehicle-mounted tilt sensor.
Fig. 2 is a schematic side view of a central axis, a first electrode, a second electrode, a dielectric sheet and a common electrode in the bipolar capacitive vehicle-mounted tilt sensor.
In the figure: 1. a vehicle-mounted tilt sensor body; 2. a cross bar; 3. a buffer tension spring; 4. a flexible cord; 5. a frame; 6. an axle; 7. a tire; 8. a middle shaft; 9. a first electrode; 10. a second electrode; 11. a dielectric sheet; 12. and a common electrode.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, in the embodiment of the present invention, the bipolar capacitive vehicle-mounted tilt sensor includes a vehicle-mounted tilt sensor main body 1, a cross bar 2 and a buffer tension spring 3, the cross bar 2 is mounted at a front end of the vehicle-mounted tilt sensor main body 1, the buffer tension spring 3 is disposed on a right side of the front end of the cross bar 2, a soft rope 4 is disposed at an upper end of the buffer tension spring 3, an upper end and a lower end of the buffer tension spring 3 are respectively fixedly connected with the soft rope 4 and the cross bar 2, a frame 5 is disposed at an upper end of the soft rope 4, an axle 6 is disposed at a lower end of the vehicle-mounted tilt sensor main body 1, tires 7 are disposed at left and right ends of the axle 6, the tires 7 are respectively located at four corners of the axle 6, a center shaft 8 is disposed at a middle portion of the front end of the vehicle-mounted tilt sensor main body 1, a first electrode 9 is disposed, the front end of the vehicle-mounted tilt sensor body 1 is provided with a common electrode 12, and the common electrode 12 is located on the front side of the medium sheet 11.
The working principle of the invention is as follows:
when the invention is used, the bipolar capacitance type vehicle-mounted inclination angle sensor main body 1 is arranged between a frame 5 and an axle 6 of a vehicle. When the vehicle is loaded more, the distance between the frame 5 and the axle 6 is smaller, so that the loading weight and the distance between the frame 5 and the axle 6 are in a certain proportional relation, and the weight of the vehicle for pulling goods can be indirectly measured according to the distance relation;
calculating the formula:
the length of the cross bar is a, the distance that the frame moves downward relative to the axle after the vehicle is loaded is delta b-K × T (T is the loading weight), the angle change caused by the change is theta, and the proportional relation between the weight and the angle change can be obtained according to the fact that tan theta is delta b/a-K × T/a. Because the angle changes, the capacitance of the bipolar plate changes Δ C (X × θ) (X is the proportionality coefficient of the capacitance changing with the angle);
the transverse rod 2 and the medium piece 11 straighten the buffer tension spring 3 and the soft rope 4 under the action of gravity, and the change of the distance between the frame 5 and the axle 6 causes the change of the angle of the transverse rod 2 and drives the medium piece 11 to rotate between the first electrode 9, the second electrode 10 and the common electrode 12; the dielectric sheet 11 is arranged among the first electrode 9, the second electrode 10 and the common electrode 12, and the capacitance is larger as the dielectric sheet 11 between the first electrode 9 and the second electrode 10 and the common electrode 12 is larger, so that the distance between the vehicle frame 5 and the vehicle axle 6 can be known by measuring the capacitance.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. On-vehicle inclination sensor of bipolar capacitance formula, including on-vehicle inclination sensor main part (1), horizontal pole (2) and buffering extension spring (3), its characterized in that, horizontal pole (2) are installed to on-vehicle inclination sensor main part (1) front end, and horizontal pole (2) front end right side is equipped with buffering extension spring (3), and buffering extension spring (3) upper end is equipped with soft rope (4), and soft rope (4) upper end is equipped with frame (5), on-vehicle inclination sensor main part (1) lower extreme is equipped with axle (6), and on-vehicle inclination sensor main part (1) front end middle part is equipped with axis (8), and axis (8) upside is equipped with electrode one (9), and axis (8) downside is equipped with electrode two (10), is equipped with dielectric piece (11) on axis (8), on-vehicle inclination sensor main part (1) front end is equipped with common.
2. The bipolar capacitive vehicle-mounted tilt sensor according to claim 1, wherein the upper end and the lower end of the tension buffer spring (3) are fixedly connected with the flexible rope (4) and the cross bar (2), respectively.
3. The bipolar capacitive vehicle-mounted inclination sensor according to claim 1, wherein tires (7) are provided at the left and right ends of the vehicle axle (6), and the tires (7) are respectively located at the four corners of the vehicle axle (6).
4. The bipolar capacitive vehicle tilt sensor according to claim 1, wherein the dielectric sheet (11) is located on the front side of the first electrode (9) and the second electrode (10).
5. The bipolar capacitive vehicle tilt sensor according to claim 1, wherein the common electrode (12) is located on the front side of the dielectric sheet (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021515874.8U CN213455313U (en) | 2020-07-28 | 2020-07-28 | Bipolar capacitance type vehicle-mounted inclination angle sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021515874.8U CN213455313U (en) | 2020-07-28 | 2020-07-28 | Bipolar capacitance type vehicle-mounted inclination angle sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001642A (en) * | 2020-07-28 | 2022-02-01 | 河北重优科技有限公司 | Bipolar capacitance type vehicle-mounted inclination angle sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001642A (en) * | 2020-07-28 | 2022-02-01 | 河北重优科技有限公司 | Bipolar capacitance type vehicle-mounted inclination angle sensor |
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