KR0158155B1 - Tire air pressure measuring device - Google Patents

Abstract

The present invention is a tire air pressure measurement device of the vehicle that can prevent the accident due to the puncture of the tire by always measuring the pressure of the tire check, the present invention for realizing this is installed outside the rim of the wheel on which the tire is mounted Magnetic force generating means of the magnetic member is installed while the position is variable by the air pressure fixed inside; Magnetic sensing means of the sensing member for generating an alternating voltage by sensing a magnetic field change caused by the rotation of the magnetic member; And a control means of a control device for detecting a signal generated while converting a current generated by the sensing member into a direct current to generate a warning light and a warning sound.

Description

Automobile tire pressure measurement device

1 is a view schematically showing a tire inflation pressure measuring apparatus according to the present invention.

2 is an enlarged view of a tire inflation pressure measuring apparatus according to the present invention.

3 is a view showing that the tire pressure measurement apparatus according to the present invention is installed.

4 is a view showing the arrangement of the magnetic body in the tire air pressure according to the present invention.

5 is a graph showing the tire pressure measurement apparatus according to the present invention.

[Field of Invention]

The present invention relates to a tire inflation pressure measuring apparatus of a vehicle, and more particularly, to a tire inflation pressure measuring apparatus of a vehicle capable of preventing accidents due to tire puncture by checking and checking the tire pressure at all times.

[Prior art]

Tire pressure in automobiles is not only a major factor in steering and shaking, but also a deflection factor, which greatly affects safe driving, and thus prevents large accidents that must be maintained at a constant pressure at all times. You can do it.

That is, when the air pressures of the steering wheels are not equal to each other, the steering wheel is directed toward the lower air pressure, which leads to a great risk in high-speed driving, as well as a braking during rapid braking, which causes a large accident. It causes a lot of negative effects on the safety operation by making the person feel the burden and eventually increase the physical fatigue of the driver.

Accordingly, it is important to check the tire air pressure from time to time to maintain the air pressure suitable for the road conditions and driving conditions, as well as to ensure that the front and rear wheels maintain the pressure of the tire at all times.

However, most drivers do not pay much attention to the tire pressure check, even though they are aware that the air pressure of the tire has a great influence on the safety operation as mentioned above. have.

In addition, the tire air pressure is not only leaked at the time of stopping, but also due to various factors such as the object stuck to the tire while driving, such as being stuck in the tire, but when the air is slowly leaked, the driver does not recognize it. You may not be able to drive, leading to an accident.

In summary, it is desirable to detect air pressure leaks and alert the driver even if the driver does not check the air pressure with the naked eye, so that the air pressure leak can be recognized and responded promptly. .

[Summary of invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a tire air pressure measuring apparatus for a vehicle which can prevent an accident due to a puncture of a tire by measuring and checking the tire pressure at all times.

The present invention for realizing this is provided on the outside of the rim portion of the wheel on which the tire is mounted, the magnetic force generating means of the magnetic member is fixed to the inside while the position is changed by the air pressure;

Magnetic sensing means of the sensing member for generating an alternating voltage by sensing a magnetic field change caused by the rotation of the magnetic member;

It characterized in that the tire inflation pressure measuring device comprising a control means of the control device for operating the horn to detect the signal generated while switching the current generated by the sensing member to direct current to turn on the warning light and generate a warning sound.

The magnetic member includes a lifting chamber formed at a predetermined interval outside the predetermined portion on the rim of the wheel, a variable magnetic body that is built to slide under the air pressure of the tire while being supported by an elastic member in the lifting chamber, and the variable magnetic body is incorporated therein. The present invention provides a tire inflation pressure measuring device for a vehicle including a built-in groove formed alternately with a lifting chamber inside a rim and a fixed magnetic body fixedly installed in the built-in groove.

The sensing member includes a magnetic rod body integrally formed with a permanent magnet so as to detect a magnetic field of a rotating magnetic member installed at one end of the rod member extending from a predetermined frame of the vehicle body, and wound around the magnetic rod body to rotate the magnetic member. The present invention provides a tire inflation pressure measuring apparatus for a vehicle including a coil unit generating an electromotive force by a magnetic field changed by the same and applying a signal to a control device.

The control device includes a converter for converting an electrical signal of a sensing member and a regulator for sensing the signal of the converter and operating a horn when the signal applied to the converter is cut off while lighting a warning light on the instrument panel. To provide a tire inflation pressure measuring apparatus.

EXAMPLE

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.

FIG. 1 is a view schematically showing a tire inflation pressure measuring apparatus according to the present invention, and FIG. 2 is an enlarged view of a tire inflation pressure measuring apparatus according to the present invention. 3 is a view showing that the tire inflation pressure measuring apparatus according to the present invention is installed, reference numeral 1 denotes the air pressure measuring apparatus.

The air pressure measuring device 1 is composed of a magnetic member 2, a sensing member 3, and a control device 4.

The magnetic member 2 of the air pressure measuring device 1 is installed outside the rim portion 7 of the wheel 6 on which the tire 5 is mounted as a magnetic force generating means, and the inside thereof is fixed while the position thereof is changed by air pressure. Is installed.

The magnetic member 2 is lifted by an elevating chamber 8 formed at regular intervals on the outside of a predetermined portion on the rim portion 7 of the wheel 6, and the tire is supported by an elastic member 9 in the elevating chamber 8. A variable magnetic body (10) slidably embedded by the air pressure of (5), and a built-in groove (11) alternately formed with the elevating chamber (8) inside the rim portion (7) in which the variable magnetic body (10) is incorporated, It comprises a fixed magnetic body 12 fixed to the built-in groove (11).

The lifting chamber 8 of the magnetic member 2 is provided with a locking protrusion 14 inside the insertion hole 13 so as to prevent separation of the variable magnetic body 10.

The sensing member 3 of the air pressure measuring apparatus 1 detects a magnetic field change caused by the rotation of the magnetic member 2 by the magnetic sensing means to generate an AC voltage.

The sensing member 3 is installed on one end of the rod member 15 extending from a predetermined frame of the vehicle body and is formed as a magnetic rod body integrally formed with the permanent magnet 16 so as to sense a magnetic field of the rotating magnetic member 2. 17 and a coil portion 18 wound around the magnetic rod body 17 to generate electromotive force by a magnetic field that is changed by the rotation of the magnetic member 2 to apply a signal to the controller 4. Is done.

The control device 4 of the pneumatic pressure measuring device 1 detects a signal generated while converting the current generated by the sensing member 3 into a direct current as a control means so that the warning lamp 19 lights up and generates a warning sound. It comprises 20.

The control device 4 is a converter 21 for converting the electrical signal of the sensing member 3 and the converter 21 while sensing the signal of the converter 21 and lighting the warning light 22 of the instrument panel. And an adjuster 23 for operating the horn 20 when the signal applied to it is cut off.

According to the operation of the present invention as described above, if the air pressure of the tire 5 of the vehicle maintains an appropriate value, the air pressure acts on the elevating chamber 8, so that the variable magnetic body 10 is adapted to the elastic force of the elastic member 9. Overcoming and advancing to the center of the wheel 6 maintains the shape as shown in a) of FIG.

At this time, the graph G shown by the converter 21 to which the electric signal is applied through the sensing member 3 is shown in FIG.

Point (P) in the graph (G) of FIG. 5 shows that the variable magnetic material 10 is in an advanced state and the air pressure in the tire 5 is in an appropriate state, and accordingly, the electric signal generated by the regulator 23 is adjusted. ) Detects and activates the warning light 19 or the horn 20.

When the air pressure in the tire 5 is lowered due to a sharp article or abnormality while the vehicle is driving or parking or stopping, the variable magnetic body 10 moves the lifting chamber 8 as shown in b) and c) of FIG. Will appear.

Therefore, at this time, since the sensing member 3 continuously detects the electrical signal at the point R portion of the graph G of FIG. 5, the adjuster 23 is a warning light 19 or a horn of the instrument panel. Activate (20) to allow the operator to check.

The air pressure measuring device 1 in the tire 5 as described above can be applied to the wheel speed shank method of the anti-brake system ABS and has a plurality of effects.

And when the air pressure in the tire 5 falls more than a predetermined amount and the arrangement shape of the variable magnetic body 10 and the fixed magnetic body 12 becomes d) of FIG. 4, the regulator 23 operates the horn 20 and takes safety measures. This will prevent accidents.

The present invention is a useful invention that enables the driver to drive safely while allowing the pneumatic shank of the tire even in the car while driving.

Claims (4)

A magnetic force generating means of the magnetic member installed on the outside of the rim of the wheel on which the tire is mounted and the inside thereof is fixed while the position thereof is changed by air pressure; Magnetic sensing means of the sensing member for generating an alternating voltage by sensing a magnetic field change caused by the rotation of the magnetic member; And a control means of a control device for detecting a signal generated while converting a current generated by the sensing member into a direct current to operate a horn to light a warning light and generate a warning sound. 2. The magnetic member of claim 1, wherein the magnetic member is provided with a lifting chamber formed at a predetermined interval outside the predetermined portion on the rim of the wheel, a variable magnetic body built into the slide by the air pressure of the tire while being supported by the elastic member in the lifting chamber, A tire inflation pressure measuring device including a built-in groove formed alternately with a lifting chamber inside a rim part in which a magnetic material is embedded, and a fixed magnetic body fixedly installed in the built-in groove. According to claim 1, wherein the sensing member is installed on one end of the rod member extending from a predetermined frame of the vehicle body and the magnetic rod body formed integrally with the permanent magnet to sense the magnetic field of the rotating magnetic member, and wound around the magnetic rod body A tire inflation pressure measuring device for a vehicle, comprising a coil unit generating an electromotive force by a magnetic field changed by rotation of a magnetic member and applying a signal to a control device. The apparatus of claim 1, wherein the control device includes a converter for converting an electrical signal of the sensing member, a warning lamp of the instrument panel lit by the signal of the time converter, and a horn operating when the signal applied to the converter is disconnected. An apparatus for measuring tire inflation pressure of a vehicle.