• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake system of a motor vehicle, and more particularly, to a brake oil leakage warning device for a vehicle, which alerts a driver when a brake oil enclosed in a brake system leaks. The present invention relates to a brake system of an automobile including a brake pedal (10), a brake master cylinder (11), a brake line (12), and a brake wheel cylinder (13). A brake switch 20 that is turned on / off according to the operation of the brake pedal 10; The brake pressure switch 30 connected to the brake switch 20, the master cylinder 11, and the wheel cylinder 13, and configured to be turned on / off by a pressure difference therein, and the brake By configuring the alarm 40 which is connected to the pressure switch 30 and installed in the dash panel, the driver recognizes the leakage of the brake oil of the brake system and prevents a large accident of the vehicle due to the inoperation of the brake. It is possible to provide a leak alarm device.
    公开号:KR19990015087A
    申请号:KR1019970036984
    申请日:1997-08-01
    公开日:1999-03-05
    发明作者:배한
    申请人:정몽규；현대자동차 주식회사；
    IPC主号:
    专利说明:

    Automotive brake oil leak alarm device
    BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake system of a motor vehicle, and more particularly, to a brake oil leakage warning device for a vehicle, which alerts a driver when a brake oil enclosed in a brake system leaks.
    A brake system is an important device used to keep a car parked at the same time as decelerating or stopping a driving car. In general, a brake system converts the kinetic energy of the car into thermal energy using a friction force and releases it into the atmosphere. Friction brakes with braking action are used.
    In addition, there are many types of braking devices, and there are a main brake for braking when driving and a parking brake for parking. The main brake is called a foot brake because it is operated by the driver's foot, and the parking brake is also called a hand brake because it is mainly operated by hand.
    The brakes are mechanical by means of rods or wires and hydraulic by means of hydraulics. In general, the brakes are hydraulic and the parking brakes are mechanical.
    According to the type of hydraulic brake, the drum type brake and the disc type brake are mainly used. The disc brake is configured to brake by pressing the brake pads by hydraulic pressure on both sides of the brake disc that rotates together with the wheels. Also called a caliper type brake.
    1 is a configuration diagram showing a general hydraulic brake system. For convenience of illustration, only the wheels on one side of the front and rear wheels are illustrated.
    As shown, when the brake pedal 1 is operated, the piston 2a in the master cylinder 2 is advanced by the push rod 1b connected to the pedal arm 1a, thereby compressing the brake oil in the cylinder 2. The high-pressure brake oil is supplied to the caliper (front wheel side) or the wheel cylinders 6 and 8 of the brake shoe (rear wheel side) in communication with the end of the front and rear brake lines 3 and 4 to brake the lining or pads. Compression is applied to the drum (internal expansion type) or disk (caliper type, front wheel side) by friction. In addition, when the brake pedal is released, the brake oil that has been compressed returns to the master cylinder 2 and the brake is released.
    When such a brake action is repeatedly used for a long time, the brake oil enclosed in the brake system may leak. When the brake oil enclosed in the brake system leaks, the oil pressure inside the brake line is dropped, and the braking effect is not obtained properly even though the brake pedal is operated.
    In order to solve this problem, the present invention, when the brake oil enclosed in the brake system is leaked, the brake oil leakage warning for automobiles to prevent large accidents due to the brake not operating by recognizing the leakage of the brake oil to the driver To provide a device.
    1 is a configuration diagram showing a general hydraulic brake system.
    Figure 2 is a block diagram showing a brake oil leak alarm device for a vehicle of the present invention.
    Explanation of the main symbols used in the drawings
    10: brake pedal 11: master cylinder
    12: brake line 13: wheel cylinder
    20: brake switch 30: brake pressure switch
    31: fixed terminal 32: cylinder
    33: piston 34: hydraulic chamber
    35: return spring 36: conductive plate
    40: alarm
    In order to achieve this object, the present invention provides a brake system of a vehicle including a brake pedal, a brake master cylinder, a brake line, and a brake wheel cylinder.
    A brake switch instructing operation of the brake pedal; A brake pressure switch installed in the brake line, the brake pressure switch being on when the brake pressure falls below a reference value and transferring input power from the brake switch to the alarm device; It provides a brake oil leakage alarm device for a vehicle comprising a warning device for generating an alarm when both the brake switch and the brake pressure switch is turned on.
    In addition, the brake pressure switch of the present invention includes a piston reciprocating in accordance with the operation of the brake in the cylinder; A return spring for generating a restoring force of the piston; Two hydraulic chambers in the cylinder formed by the piston; A fixed terminal installed in the hydraulic chamber including the hydraulic chamber return spring; A vehicle characterized in that the brake pressure switch including a conductive plate that is electrically connected to both sides of the fixed terminal when the pressure of the brake oil acts below the reference value by integrally reciprocating the piston with the restoring force of the brake pressure and the return spring. Brake oil leakage alarm system
    Hereinafter, with reference to the accompanying drawings, the configuration of the brake oil leakage alarm device for a vehicle according to the present invention will be described in detail.
    Figure 2 is a block diagram showing a brake oil leakage alarm device for a vehicle of the present invention. As shown, the brake oil leakage warning device for an automobile of the present invention includes a brake pedal 10, a brake master cylinder 11, a brake line 12, and a brake wheel cylinder 13 In the system, the brake switch 20, the brake pressure switch 30, and the alarm device 40 are constituted.
    When the brake switch 20 applies an operating force to the brake pedal 10, the switch 20 is turned on to transmit power to one fixed terminal 31 of the brake pressure switch 30 and the brake pedal 10. When the operating force applied to the) is removed, the switch 20 is turned off to cut off the power transmitted to the fixed terminal 31 of the brake pressure switch 30.
    As shown in FIG. 2, the brake pressure switch 30 includes a master cylinder 11, a wheel cylinder 13, a cylinder 32 connected to the above-described brake switch 20, and the cylinder 32. The piston 33 to reciprocate slightly according to the operation of the brake pedal 10 therein, the hydraulic chamber 34 separated up and down by the piston 33, to generate a restoring force to the piston 33 Return spring 35, two fixed terminals 31 installed in the hydraulic chamber 34 including the return spring 35 of the hydraulic chamber 34, reciprocating movement integrally with the piston by the restoring force of the brake pressure and the return spring When the pressure of the brake oil acts below the reference value, it is composed of a conductive plate 36 which is connected to both sides of the fixed terminal 31 and is energized.
    One fixed terminal 31 of the two fixed terminals 31 constituting the brake pressure switch 30 is connected to the brake switch 20, and the other fixed terminal 31 is connected to the alarm 40. It is connected.
    The alarm 40 is configured to sound an alarm when the fixed terminal 31 of the brake pressure switch 30 described above is connected by the conductive plate 36.
    Next, the operation of the brake oil leakage alarm device for a vehicle of the present invention configured as described above is as follows.
    As shown in FIG. 2, when the ignition switch 14 is turned on, power is supplied to one terminal of the brake switch 20. At this time, when the brake pedal 10 is operated, the brake switch 20 is turned on and sends power to one side fixed terminal 31 of the brake pressure switch 30. At this time, when the pressure of the oil flowing into the brake pressure switch 30 via the master cylinder 11 is greater than the reference value, the piston 33 moves downward, and when it reaches the fixed terminal 31, it can no longer go downward. In addition, the pressure of the incoming oil is transmitted to the wheel cylinder 13 to obtain a braking effect.
    However, if the brake pedal is operated in the event of leakage of brake oil in the brake system, the brake switch 20 is turned on and the power is supplied to the fixed terminal 31 on one side of the brake pressure switch 30. The internal oil pressure of the brake line 12, the master cylinder 11, and the wheel cylinder 13 drops due to leakage of the brake oil. Thus, the piston 33 inside the brake pressure switch 30 moves upward due to the difference in pressure, and the conductive plate 36 integrally connected to the lower portion of the piston 33 also moves upward. The fixed terminal 31 is reached. When the conductive plate 36 connects the fixed terminal 31, the alarm 40 sounds an alarm.
    Accordingly, the present invention provides a brake system of an automobile including a brake pedal 10, a brake master cylinder 11, a brake line 12, and a brake wheel cylinder 13.
    A brake switch 20 that is turned on / off according to the operation of the brake pedal 10; The brake pressure switch 30 connected to the brake switch 20, the master cylinder 11, and the wheel cylinder 13, and configured to be turned on / off by a pressure difference therein, and the brake By configuring the alarm 40 which is connected to the pressure switch 30 and installed in the dash panel, the driver recognizes the leakage of the brake oil of the brake system and prevents a large accident of the vehicle due to the inoperation of the brake. It is possible to provide a leak alarm device.
    Although specific embodiments of the present invention have been described in detail above, the present invention is not limited thereto, and those skilled in the art may make various changes and modifications based on the technical idea of the present invention.
    权利要求:
    Claims (2)
    [1" claim-type="Currently amended] In a brake system of a motor vehicle comprising a brake pedal, a brake master cylinder, a brake line, and a brake wheel cylinder,
    A brake switch instructing operation of the brake pedal; A brake pressure switch installed in the brake line, the brake pressure switch being on when the brake pressure falls below a reference value and transferring input power from the brake switch to the alarm device; Brake oil leakage alarm device for a vehicle comprising a warning device for generating an alarm when both the brake switch and the brake pressure switch is turned on.
    [2" claim-type="Currently amended] The brake pressure switch of claim 1, further comprising: a piston reciprocating in response to the operation of the brake in the housing; A return spring for generating a restoring force of the piston; Two hydraulic chambers in the housing formed by the piston; A fixed terminal installed in the hydraulic chamber including the hydraulic chamber return spring; A vehicle characterized in that the brake pressure switch including a conductive plate that is electrically connected to both sides of the fixed terminal when the pressure of the brake oil acts below the reference value by integrally reciprocating the piston with the restoring force of the brake pressure and the return spring. Brake oil leak alarm system.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1997-08-01|Application filed by 정몽규, 현대자동차 주식회사
    1997-08-01|Priority to KR1019970036984A
    1999-03-05|Publication of KR19990015087A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019970036984A|KR19990015087A|1997-08-01|1997-08-01|Automotive brake oil leak alarm device|
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