KR20120122757A - Wear detect device of brake pad for a vehicle - Google Patents

Wear detect device of brake pad for a vehicle Download PDF

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Publication number
KR20120122757A
KR20120122757A KR1020110041101A KR20110041101A KR20120122757A KR 20120122757 A KR20120122757 A KR 20120122757A KR 1020110041101 A KR1020110041101 A KR 1020110041101A KR 20110041101 A KR20110041101 A KR 20110041101A KR 20120122757 A KR20120122757 A KR 20120122757A
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KR
South Korea
Prior art keywords
wear
wear detection
pad
brake
disc
Prior art date
Application number
KR1020110041101A
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Korean (ko)
Inventor
김현정
Original Assignee
김현정
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Filing date
Publication date
Application filed by 김현정 filed Critical 김현정
Priority to KR1020110041101A priority Critical patent/KR20120122757A/en
Publication of KR20120122757A publication Critical patent/KR20120122757A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D66/02—Apparatus for indicating wear
    • F16D66/021—Apparatus for indicating wear using electrical detection or indication means
    • F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
    • F16D66/023—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness directly sensing the position of braking members
    • F16D66/024—Sensors mounted on braking members adapted to contact the brake disc or drum, e.g. wire loops severed on contact

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

The present invention relates to a wear detection device for an automobile brake pad,
A pair of plates disposed on both sides of the disk to be in close contact with the disk to perform a braking operation, the disk rotating together with the automobile wheel, and a pair of plates having a brake pad attached to a surface in contact with the disk, and at least one of the plates In the brake disk including a wear detection sensor for penetrating the sensing of the brake,
The wear detection sensor unit is characterized in that consisting of a sensing unit which is in the form of a curved line in the inside of one of the pads attached to the pad and the connection unit for sending the wear replacement time to the display unit.
In addition, the wear detection sensor unit is characterized in that a plurality of screw portion of the connection hole provided through one of the plates are installed in a screwing manner.
In the present invention as described above, in the wear detection sensor unit, through the through hole of the plate, by providing a sensing unit which is in the form of a curved line in the inside of the pad, the disk and the pad friction by a predetermined range or more There is an effect that the detector can immediately detect any part of the wear in the process of wear.
In addition, by installing a plurality of wear detection sensor unit of the present invention in the connection hole formed in one of the plates by screwing, it is not only easy to install and install it, but also has the effect of reducing the exchange cost thereof.

Description

Wear detect device of brake pad for a vehicle

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wear detection device of an automobile brake pad. Particularly, a brake pad is worn by continuous friction when a part of the disk of the automobile is strongly pressed by the brake pad on both sides to obtain braking force by friction between the disk and the brake pad. The present invention relates to a wear detection device for a brake pad for a vehicle that detects a degree of replacement of the brake pad.

In general, a disc brake is to obtain a braking force by pressing the disk-like disk that rotates with the wheel with a pad from both sides.

Conventional disc brakes include a housing in which a piston is built to move back and forth by braking hydraulic pressure, a carrier fixed to the vehicle body, and a housing coupled to the housing so that the housing is slidably coupled, and a disk which rotates with the wheel while a part of the outer circumference is inserted between the pad plate. It is provided.

In the rear part of the caliper housing, a cylinder for transmitting the braking hydraulic pressure is machined, and in the front part thereof, a finger portion bent downward to surround the outer pad plate, which will be described later, is integrally provided. It comes in close contact with.

The carrier is bolted to the knuckle of the vehicle body, where a pair of pad plates with pads are slidably installed inward. The pad plate is divided into an inner pad plate disposed to be in direct contact with the front end of the piston and an outer pad plate disposed to be in contact with the inner surface of the finger portion.

When the driver presses the brake pedal during driving of a vehicle having a disc brake configured as described above, a braking hydraulic pressure is formed in the master cylinder and continuously transmitted into the cylinder to move the piston forward. If this process is repeated without a break, the lining is worn, the driver can not sense the worn state as described above, and the pad is worn out, weakening the braking force.

In addition, in the process of wearing the pads as described above, one of the pads on both sides of the pad wears more wear occurs, there is a case where the braking force is dropped leading to a traffic accident.

The present invention for solving the above problems is to provide a wear detection device of the brake pad for a vehicle to detect the replacement cycle to the driver by electrically detecting the brake pad of the disc brake device to reach a certain depth. .

In order to accomplish the above object of the present invention,

A pair of plates disposed on both sides of the disk to be in close contact with the disk to perform a braking operation, the disk rotating together with the automobile wheel, and a pair of plates having a brake pad attached to a surface in contact with the disk, and at least one of the plates In the brake disk including a wear detection sensor for penetrating the sensing of the brake,

  The wear detection sensor unit is characterized in that consisting of a sensing unit which is in the form of a curved line in the inside of one of the pads attached to the pad and the connection unit for sending the wear replacement time to the display unit.

      In addition, a disk that rotates together with the wheels of the car and a pair of plates respectively disposed on both sides of the disk to be in close contact with the disk to perform a braking operation, the brake pad is attached to the surface in contact with the disk, and at least one of the plates In the brake disk including a wear detection sensor for penetrating one to detect the wear of the brake,

      The wear detection sensor unit is characterized in that the plurality of threaded portion of the connection hole provided through one of the plates are installed in a screwing manner.

      In the present invention as described above, in the wear detection sensor unit, through the through hole of the plate, by providing a sensing unit which is in the form of a curved line in the inside of the pad, the disk and the pad friction by a predetermined range or more There is an effect that the detector can immediately detect any part of the wear in the process of wear.

In addition, by installing a plurality of wear detection sensor unit of the present invention in the connection hole formed in one of the plates by screwing, it is not only easy to install and install it, but also has the effect of reducing the exchange cost thereof.

1 is an exploded perspective view showing a coupling structure of a wear detection device of a brake pad for a vehicle according to a first embodiment of the present invention.
Figure 2 is a perspective view showing a wear detection device of a brake pad for a vehicle according to the present invention.
Figure 3 is an enlarged view showing the component coupling state of the wear detection device of a brake pad for a vehicle according to a first embodiment according to the present invention.
Figure 4 is a longitudinal cross-sectional view showing a state of lying down the wear detection device of a brake pad for a vehicle according to a first embodiment according to the present invention.
Figure 5 is an enlarged view showing a coupling structure of the wear detection device of a brake pad for a vehicle as a second embodiment according to the present invention.
Figure 6 is a state diagram before the operation of the wear detection device of a brake pad for a vehicle according to the first embodiment of the present invention.
Figure 7 is a state diagram showing after the operation of the wear detection device of a brake pad for a vehicle according to the first embodiment of the present invention.
Figure 8 is a state diagram showing before the operation of the wear detection device of a brake pad for a vehicle according to a second embodiment of the present invention.
Figure 9 is a state diagram showing after the operation of the wear detection device of a brake pad for a vehicle according to a second embodiment of the present invention.

Hereinafter, a preferred configuration and a first embodiment of the present invention will be described with reference to the accompanying drawings.

The disc 100 rotates together with the wheels of the car and the disc 100 is disposed on both sides of the disc 100 to perform a braking operation, and the brake pad 20 is in contact with the disc 100. In the brake disc comprising a pair of plates (10) attached to the 21, and a wear detection sensor unit (30) for penetrating at least one of the plates (10) to detect wear of the brake,

The wear detection sensor unit 30 replaces the wear unit with the detection unit 31 which is installed in a curved line shape inside one of the pads 20 to which the pads 20 and 21 are attached. It consists of a connecting portion 32 for sending to the display portion 101.

Referring to FIG. 1, the present invention includes a pair of plates 10 having pads 20 and 21 attached thereto, one of which has a wear detection sensor unit 30 embedded in the pad 20. An inner plate 11 and the other is an outer plate 12 positioned opposite to the inner plate 11.

If the inner plate 11 and the installation of each component will be described in more detail,

The inner plate 11 is coupled to the insulator 70 having the through-hole 80 formed therein so that the detection unit 31 of the wear detection sensor unit 30 passes through and sends a signal to the display unit 101. The pad 20 is attached to the bottom of the 11, the rod 40 is connected to the upper surface, the cylinder 50 is installed to the rod 40 to perform the forward function, the cylinder 50 is hydraulic A piston (not shown) for pushing the pad 20 is installed.

Meanwhile, as shown in FIG. 3, the wear detection sensor unit 30 is installed to detect wear of the brake, and the wear detection sensor unit 30 is installed in a curved line shape inside the pad 20. It is composed of a connecting portion 32 which is connected to the sensing line 102 to send a signal to the display unit 101 to inform the detection unit 31 and the wear replacement time to be.

In addition, referring to FIG. 4, when the detection unit 31 of the wear detection sensor unit 30 determines a state in which the upper surface of the inner plate 11 is placed on the floor, the front of the detection unit 31 is "

Figure pat00001
Has the form ".

The sensing unit 31 may be manufactured in various forms when viewed from the front, but in the friction between the pads 20 and 21 and the disk 100, constant curved contact portions 33 are arranged. It is preferable to manufacture the pad 20 so that any part of the pad 20 may be immediately detected, and the material of the sensing unit 31 may be made of a curved linear conductor.

Meanwhile, an insulator 70 having a through hole 80 is formed to block the signal transmitted to the display unit 101 by grounding the disk 100 and the sensing unit 31, and the insulator 70 is provided. silver,

In the case where the disk 100 and the sensing unit 31 are grounded to transmit a signal to the display unit, when the pad 20 is worn over a predetermined range due to continuous friction with the disk 100, the disk 100 and the sensing unit 31 are detected. The part 31 is grounded and the negative electrode (-) flowing in the disk 100 is applied to the sensing unit 31 to block the transfer to the display unit 101 through the sensing line 102.

Referring to the preferred configuration and the second embodiment of the present invention.

      The disc 100 rotates together with the wheels of the car and the disc 100 is disposed on both sides of the disc 100 to perform a braking operation, and the brake pad 20 is in contact with the disc 100. In the brake disc comprising a pair of plates (10) attached to the 21, and a wear detection sensor unit (30) for penetrating at least one of the plates (10) to detect wear of the brake,

       The wear detection sensor unit 60 is characterized in that a plurality of screws are installed in the screw portion 84 of the connection hole 82 provided through one of the plate 10 in a screwing manner.

In the above configuration, prior to explaining the second embodiment of the present invention, only different parts from the first embodiment will be described in detail.

 The present invention is provided with a pair of plates 10 to which a pad 20 is attached, one of which is an inner plate 11 having a connection hole 82 having a threaded portion 84 therein, and the other The outer plate 12 is positioned opposite to the inner plate 11.

When the wear detection sensor 60 is fastened to the inner plate 11 in more detail,

As shown in FIG. 5, in the wear detection sensor unit 60 is installed in the connection hole 82 formed in the inner plate 11 by screwing,

The wear detection sensor unit 60 is in contact with the pad 20 but inserted into the groove 21 of the pad 20 by a predetermined depth, and the sensing member 61 and the sensing member 61 upward. It is composed of an elastic member 90 for applying a constant elastic force, and a support member 65 having a threaded portion 63 formed on the outer circumference provided to maintain the function of the elastic member 90, the wear portion is replaced by the display portion 101 The sensing line 102 indicating the timing is connected to the end of the sensing member 61.

On the other hand, to support the sensing member 61, to maintain the function of the elastic member 90 is provided with a support 65, the support 65 is formed with a screw portion 63 on the outer periphery, the sensing line 102 is provided with a through-hole 67 formed to connect with the sensing member 61, it is installed in the connection hole 82 formed in the inner plate 11 by screwing.

As described above, since the wear detection sensor unit 60 is fitted to the inner plate 11 by a screw fastening method, the wear detection sensor unit 60 may be easily installed and reused, thereby reducing its exchange cost.

Referring to the operation of the first embodiment and the second embodiment in using the wear detection device of the brake pad for a vehicle of the present invention configured as described above are as follows.

First, when the driver steps on a brake pedal (not shown) when the vehicle moves forward, a brake inflow is formed in the brake master cylinder (not shown), and hydraulic pressure is transferred into the cylinder 50 from the master cylinder (not shown), so that the piston ( The pressure is applied to the rod 40 to move forward. By the braking hydraulic pressure, the piston (not shown) moves forward to the disk 100 and presses the inner plate 11 and the outer plate 12 to the disk 100. Each of the plates 11 and 12 is provided with brake pads 20 and 21 so that the two brake pads 20 and 21 rub against the disk 100 and generate braking force.

Herein, the operation according to the first embodiment of the present invention will be described.

As shown in FIGS. 5 to 6, the pads 20 and 21 attached to each plate 11 and 12 are worn down little by little as time passes. When worn over a certain range, the contact portion 33 of the detection unit 31 in the disc 100 and the pad 20 is rubbed, wherein the negative electrode (-) flowing in the disc 100 is the detection unit Applied to 31 and sent to the display unit via the sensing line 102, the driver can immediately know when to replace the pad 20.

On the other hand, if the operation described in accordance with the second embodiment of the present invention,

As shown in FIGS. 7 to 8, the pad 20 attached to the inner plate 11 wears over time in the process of repeatedly generating the braking force by friction with the disc 100. When moving toward the abnormal disk 100, the sensing member 61 applied upward by the elastic member 90 to the groove 21 of the pad 20 is rubbed with the disk 100, The signal is sent to the display unit 101 through the sensing line 102 connected to the end of the sensing member 61.

In other words. When the pad 20 is worn to the sensing member 61. The disk 100 and the sensing member 61 are in friction. At this time, a negative electrode (-) flowing through the disk 100 is applied to the sensing member 61 and sent to the display unit through the sensing line 102. By loading, the driver can immediately know when to replace the pad (20).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of illustration, It will be understood by those of ordinary skill in the art that various changes and modifications may be made without departing from the scope of the present invention.

10: plate 70: insulator
11: inner plate 80: through hole
12: outer plate 82: connector
20.21: Pad 100: Disc
30.60: wear detection sensor unit 101: display unit
31: detector 102: detection line
40: loading
50: cylinder

Claims (6)

The disc 100 rotates together with the wheels of the car and the disc 100 is disposed on both sides of the disc 100 to perform a braking operation, and the brake pad 20 is in contact with the disc 100. In the brake disc comprising a pair of plates (10) attached to the 21, and a wear detection sensor unit (30) for penetrating at least one of the plates (10) to detect wear of the brake,
The wear detection sensor unit 30 replaces the wear unit with the detection unit 31 which is installed in a curved line shape inside one of the pads 20 to which the pads 20 and 21 are attached. Apparatus for detecting wear of a brake pad for a vehicle, characterized in that consisting of a connecting portion (32) for sending to the display portion (101).
The method of claim 1,
The sensing unit 31 is built in a curved line shape smaller than the thickness of the pad 20, the material is a wear detection device for a brake pad for a vehicle, characterized in that made of a hard insulator.
The method of claim 1,
Wear detection of a brake pad for a vehicle, characterized in that the insulator 70 having a through hole 80 is formed to block the signal transmitted to the display unit 101 by grounding the disk 100 and the sensing unit 31. Device.
The disc 100 rotates together with the wheels of the car and the disc 100 is disposed on both sides of the disc 100 to perform a braking operation, and the brake pad 20 is in contact with the disc 100. In the brake disc comprising a pair of plates (10) attached to the 21, and a wear detection sensor unit (30) for penetrating at least one of the plates (10) to detect wear of the brake,
The wear detection sensor unit 60 of the brake pad 20 for a vehicle, characterized in that a plurality of screws are installed in the screw portion 84 of the connection hole 82 provided through one of the plate 10 is screwed. Wear detection device.
The method of claim 4, wherein
The wear detection sensor unit 60 includes a sensing member 61 in contact with the pad 20, an elastic member 90 for applying a constant elastic force to the sensing member 61 in an upward direction, and the elastic member ( Brake pad for a vehicle, characterized in that the support 65 provided to maintain the function of the 90 and the sensing line 102 informing the wearer to the display unit 101 is connected to the end of the sensing member 61. Wear detection device.
The method of claim 4
The support 65 is a screw portion 63 is formed to be detachable on the outer periphery, characterized in that the through-hole 67 is formed so that the sensing line 102 is connected to the sensing member 61.
KR1020110041101A 2011-04-29 2011-04-29 Wear detect device of brake pad for a vehicle KR20120122757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110041101A KR20120122757A (en) 2011-04-29 2011-04-29 Wear detect device of brake pad for a vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110041101A KR20120122757A (en) 2011-04-29 2011-04-29 Wear detect device of brake pad for a vehicle

Publications (1)

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KR20120122757A true KR20120122757A (en) 2012-11-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150069328A (en) * 2013-12-13 2015-06-23 현대자동차주식회사 Pad Abrasion Sensor Built in Break Caliper
KR20220073457A (en) * 2020-11-26 2022-06-03 목포대학교산학협력단 Monitoring unit for brake system and brake pad assembly having the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150069328A (en) * 2013-12-13 2015-06-23 현대자동차주식회사 Pad Abrasion Sensor Built in Break Caliper
KR20220073457A (en) * 2020-11-26 2022-06-03 목포대학교산학협력단 Monitoring unit for brake system and brake pad assembly having the same

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