KR960000545Y1 - Device for measuring tire pressure - Google Patents

Abstract

No content.

Description

Car Tire Pressure Sensor

1 is a schematic configuration sectional view showing a configuration in which a tire inflation pressure detecting device according to the present invention is installed in a rear axle driving portion of a rear wheel drive;

2 is a schematic configuration sectional view showing a configuration in which a tire air pressure sensing device according to the present invention is installed on an axle without a drive;

3 is a schematic configuration sectional view showing a configuration in which a tire inflation pressure detecting device according to the present invention is installed in a front axle driving portion of a front wheel drive;

4 is a view showing a pressure gauge substrate of the tire pressure sensor according to the present invention

FIG. 5 is an exemplary view showing a state in which the pressure gauge substrate shown in FIG. 4 is installed on a driver's seat panel.

6 is a diagram illustrating a state in which tires are mounted on axles of various vehicles,

(a) is for a general passenger car,

(b) is for buses and small trucks,

(c) shows the case of a large truck.

7 is a side view illustrating the position where the pressure sensor is attached to the tire

* Explanation of symbol for main part of drawing

1: Tire 2: Rib

3: pressure sensor 4,4b.4c: lead wire

5: Soget 6: rubber ring

7: Friction Ring 8: Brush

9: spring 10: section

11: pressure gauge substrate 12: pressure gauge

13: alarm rich 14: driver's seat panel

20: axle 25a, 25b: drill hole

27: storage container 39: brush fixing cover

The present invention relates to an automobile tire pressure sensor, and more particularly, to an air pressure sensor that detects tire air pressure by a pressure sensor attached to a tire and makes the detected air pressure known by a pressure gauge installed in a driver's seat panel.

The proper tire pressure is very important for the safe driving of a car.

In particular, a water film phenomenon occurs between the tire and the road surface in rainy weather, so if the tire air pressure is lower than the appropriate pressure, the braking distance is prolonged during sudden braking, which is likely to cause a safety accident. In addition, if the tire air pressure is not proper when driving at high speeds or when driving on slopes or curves, the vehicle body may be inclined to a lower side of the air pressure, resulting in a vehicle rollover accident. In addition, tire inflation pressure is related to the riding comfort of the vehicle.

Although the proper tire inflation pressure of the vehicle has a significant influence on the safety operation and ride comfort of the vehicle, up to now, the tire inflation pressure has only been checked by visual observation or by hitting the tire with a ball of iron. In the case of trucks, two tires are mounted on the left and right sides of the rear axle. In this case, the tires mounted on the inner side of the truck are covered by the outer tires, so it is not easy to check the air pressure with the naked eye or a bunch of metal.

In addition, since the tire air pressure can be measured only before and after the vehicle operation, and the tire air pressure cannot be checked while the vehicle is being driven, safety accidents caused by fluctuations in the tire pressure during driving cannot be prevented.

On the other hand, the tire has a high temperature during high-speed driving due to friction with the road surface.

In particular, when high-speed driving on the asphalt pavement in the summer, the tires are likely to generate high heat, which may cause the tire to burst.

The present invention solves the above problems, the tire pressure is accurately measured by the pressure sensor and temperature sensor attached to the tire of the vehicle, and the measured air pressure is displayed on the pressure gauge installed on the driver's seat panel so that the driver The purpose of this study is to make it easy to determine whether the tire pressure is appropriate even during the operation of the vehicle, and to alert the driver by alerting the driver when the air pressure is out of the proper standard range. .

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

1 is a schematic sectional view showing a configuration in which the tire air pressure sensor of the present invention is installed on the rear axle of the rear wheel drive, and a pressure sensor capable of measuring the air pressure inside the tire on the bottom of the tire 1 mounted on the rim 2; (3) is attached. The pressure sensor 3 may use a known pressure sensor, and as shown in FIG. 7, the pressure sensor 3 may have a tire 1 in the same manner as the air inlet 31 is attached to the tire 1. It is attached to the appropriate part near the rim (2) of (). The conducting wires 4, 4b and 4c through which the sensing current flows from the pressure sensor 3 are two stranded wires of + and-wires, and the conducting wire 4 is detachably connected to the socket 5. The socket 5 is attached to the distal end of the axle 20 and connects the conductor 4 and the conductor 4b. The reason for installing the socket 5 is that when it is necessary to remove the rim 2 from the axle 20 when the tire is replaced or when the vehicle is being repaired, the conductor 4 is removed from the socket 5 and the rim ( 2) to separate together.

A horizontal drill hole 25a and a longitudinal drill hole 25b for accommodating the conductive wire 4b are formed in the center of the axle 20, and the holes 25a and 25b are formed in the axle 20. Connected.

The longitudinal drill hole 25b penetrates upward through the outer circumferential wall of the axle 20. The insulator rubber ring 6 is fixed around the axle 20 while covering the longitudinal drill hole 25b. The outer ring of the rubber ring 6 is fitted with a friction ring 7 as a conductor. The conductive wire 4b passes through the drill holes 25a and 25b and passes through the rubber ring 6 to be connected to the friction ring 7.

A brush 8 is interposed between the friction ring 7 and the metal plate 8a, and a spring 9 embedded in the storage device 27 is installed on the upper surface of the metal plate 8a to downwardly move the metal plate 8a. By pressing the brush 8 in contact with the bottom surface of the metal plate 8a, the brush 8 is pressed against the top surface of the friction ring 7. The reason why the rubber ring 6 is interposed between the axle 20 and the friction ring 7 is to prevent the friction ring 7 from contacting the axle 20 so that only the conductive wire 4b is energized. to be.

The conductive wire 4b is connected to the conductive wire 4c via a friction ring 7, a brush 8, a metal plate 8a, a spring 9, a lid of the storage container 27, an insulator 10, and the like. The conductive wire 4c is connected to the pressure gauge substrate 11 installed on the driver's seat panel 14.

In FIG. 1, the axle 20 is the rear axle in the rear wheel driving, so when the axle 20 rotates, the rubber ring 6 and the friction ring 7 are fixed to the axle 20 to rotate together with the axle 20. In addition, the brush 8 pressed downward and fixed by the metal plate 8a maintains contact with the upper surface of the rotating friction ring 7 while pressing the upper surface of the friction ring 7. As shown in FIG. 1, the center line AA is divided and divided into rubber rings 6, friction rings 7, brushes 8, metal pipes 8a, storage vessels 27, and the like. This prevents the current flow of the + and-wires from being energized.

Reference numeral 21 denotes a brake drum, 22 a bearing, 23 an oil ring and 24 an axle case.

2 is a schematic cross-sectional view showing a configuration in which the tire inflation pressure sensor of the present invention is installed on a front axle that does not drive in a rear wheel drive vehicle or a rear axle that does not drive in a front wheel drive vehicle. In the same bar, the axle 20 is fixed without rotation, and the socket 5 is attached to the upper part of the brush fixing cover 39 attached to the end of the axle 20, and the wire 4 is connected to the pressure sensor 3. Is detachably connected to the socket (5).

Below the socket 5 is provided a storage container 27 for accommodating the spring 9 and the brush 8. The conducting wire 4b connected to the socket 5 is connected to the friction ring 7, and the brush 8 is pressed against the upper surface of the friction ring 7 by pressing the spring 9 as in the case of FIG. 1. do. A rubber ring 6 is interposed in the inner circumference of the friction ring 7 to prevent the friction ring 7 and the axle 20 from energizing. The conductive wire 4c drawn out from the friction ring 7 is connected to the pressure gauge substrate 11 via the drill holes 25a and 25b.

Reference numeral 35 denotes an oil seal, 36 brake linings, 37 and 38 bearings.

3 is a schematic cross-sectional view showing a configuration in which the tire air pressure sensing device of the present invention is installed on the front axle of the front wheel drive, similar to that of FIG. The pressure sensor 3 is attached to the tire 1 and the conductive wire 4 connected to the pressure sensor 3 is detachably connected to the socket 5, and the conductive wire 4b is formed of drill holes 25a and 25b, rubber It is connected to the pressure gauge substrate 11 via the conductive wire 4c via the ring 6, the friction ring 7, the brush 8, and the spring 9.

Unmarked 40-degree anchor, 41 is a sleeve.

4 shows a pressure gauge substrate 11 provided with a pressure gauge 12 for displaying tire air pressure of each wheel. The pressure gauge 12 is connected to the pressure sensor 3 via the conductor 4c. In the figure, A and B are the pressure gauges of the tires attached to the left and right of the front axle, and C, D, E, and F represent the pressure gauges of the two tires attached to the left and right of the rear axle. This is the case.

13 is an alarm component and generates an alarm when the tire pressure of each tire is out of an appropriate reference range, that is, when it is at a dangerous value.

5 is an exemplary view showing a state in which the pressure gauge board 11 of the present invention is installed on the driver's seat panel 14, and the pressure gauge board 11 is disposed at an appropriate position of the driver's seat panel 14 so that the driver's vision can be easily entered. Just do it. 15 is rpm gauge and 16 is speed gauge.

6 is a view illustrating a state in which tires 1 are mounted on axles of various vehicles, in which (a) is a general passenger car, (b) is a small bus, and (c) is a large truck. The case is shown.

In the case of the vehicle shown in (b) of FIG. 6, the arrangement of the pressure gauge 12 shown in FIG. In various vehicles, the pressure gauge 12 may be disposed on the pressure gauge substrate 11 corresponding to the number and position of the vehicle wheels.

In FIG. 7, the pressure sensor 3 according to the present invention may be installed on any part of the tire 1, but is preferably disposed opposite to the air inlet 31.

As described above, the tire air pressure sensor according to the present invention has been described. In the case of a rear-wheel drive vehicle, the sensor shown in FIG. 1 is installed on the rear axle, and the sensor shown in FIG. 2 is installed on the front axle. do.

On the other hand, in the case of a front wheel drive vehicle, the sensing device shown in FIG. 3 is installed on the front axle, and the sensing device shown in FIG. 2 is installed on the rear axle.

And in the embodiment of the present invention has been described only the configuration of the sensing device with a pressure sensor by way of example, the configuration of the sensing device with a temperature sensor can be installed alone or together with the pressure sensor by the same mechanism.

As can be seen from the above description, the present invention makes it easy for the driver to easily check whether the tire pressure attached to each wheel is properly adjusted even while the vehicle is being driven, so that the vehicle safety accident can be prevented in advance and the proper air pressure is always maintained. As a result, an effect of improving the riding comfort of the vehicle also occurs.

Claims (1)

The end portion of the two conductors 4 of the pressure sensor 3 + .- attached to the tire 1 is connected, and the conductors 4 are detachably mounted to the sockets 5, and the axles 20 of the axle 20 A conducting wire penetrates through the inside of the hole 25a. By fixing the ring 7 to press the brush 8 downward by the spring 9 embedded in the storage container portion 27 so that the brush 8 is pressed against the upper surface of the friction ring 7. The conductive wire 4c connected to the gauge 12 and the conductive wire 4 attached to the pressure sensor 3 are energized to each other so that the pressure of the tire 1 appears on the pressure gauge substrate 11 and the pressure gauge substrate 11. Is a tire pressure detection device for a car tire that specifies a wheel installed in the driver's seat closing board (14).