KR102248904B1 - Double safty type brake apparatus for vehicle - Google Patents

Abstract

The present invention relates to a brake device to which a vehicle dual safety structure is applied, comprising: a housing; A rotational force supply unit mounted on the housing and providing a rotational force; A rotating unit that receives rotational force and rotates when the rotational force supply unit is operated; A linear moving part positioned inside the rotating part and moving linearly while interlocking while rotating the rotating part to press the brake pad; A hydraulic pressure supply unit connected to the housing unit and supplying hydraulic pressure for moving the linear moving unit; And a hydraulic pressure supply unit connected to the housing unit and supplying hydraulic pressure for moving the linear moving unit.
According to the present invention, the brake device to which the dual safety structure for a vehicle is applied is braking of the vehicle through the rotational force supply unit in normal times, and braking of the vehicle is performed through the hydraulic supply unit when the braking torque is limited or the rotational force supply unit is broken. There is an effect that can be improved.

Description

Brake system with dual safety structure for vehicles {DOUBLE SAFTY TYPE BRAKE APPARATUS FOR VEHICLE}

The present invention relates to a brake device to which a dual safety structure for a vehicle is applied, and more particularly, to a brake device to which a dual safety structure for a vehicle is applied that can provide a large driving force while being able to use electric energy and hydraulic pressure singly or in combination. .

In general, a brake is a braking device used to maintain a parking state while decelerating or stopping a traveling vehicle.

Brakes used in vehicles are mainly friction-type brakes, and pads are installed on both sides of the disk rotating together with the wheel, and the pads are moved by hydraulic pressure to press the disk, thereby performing a braking function.

With the revitalization of the electric vehicle market in recent years, the development trend of hydraulic braking devices is that a motor-type vacuum pump is used or an electronically controlled brake is used instead of a vacuum device caused by an engine pressure.

The hydraulic braking system applied to electric vehicles adopts two methods, a method of generating hydraulic pressure by driving a motor and boosting it, and a method of driving and accumulating a pump to eject hydraulic pressure.

Conventionally, since a brake used in a vehicle including an electric vehicle is a single driving method that is operated by hydraulic pressure or electricity, there is a problem that the braking stability of the vehicle is deteriorated. Therefore, there is a need to improve this.

Republic of Korea Patent Publication No. 10-1654813 (2016.08.31.) Republic of Korea Patent Publication No. 10-2014-099270 (2014.08.11.)

The present invention has been proposed in view of the above circumstances, and an object of the present invention is to provide a brake device employing a dual safety structure for a vehicle capable of using a single or a combination of electric energy and hydraulic pressure through a torque supply unit and a hydraulic supply unit.

In addition, it is an object of the present invention to provide a brake device employing a dual safety structure for a vehicle capable of providing a driving force greater than that of a conventional motor by improving the structure of the torque supply unit.

A brake device to which a vehicle dual safety structure according to an embodiment of the present invention is applied includes: a housing; A rotational force supply unit mounted on the housing and providing a rotational force; A rotating unit that receives rotational force and rotates when the rotational force supply unit is operated; A linear moving part positioned inside the rotating part and moving linearly while interlocking while rotating the rotating part to press the brake pad; And a hydraulic pressure supply unit connected to the housing unit and supplying hydraulic pressure for moving the linear moving unit.

And the rotational force supply unit is mounted on a linear moving unit located between the rotational unit and the hydraulic supply unit, the motor for providing a rotational force; And a rotor that rotates by receiving the rotational force of the motor, has a sun gear connection portion formed at one end, and transmits the rotational force to the rotational portion.

Here, the rotation unit sun gear configured integrally with the sun gear connection portion of the rotor; A ring gear disposed on an outer circumferential surface of the sun gear; A planetary gear mounted at an interval between the sun gear and the ring gear; A rotating body formed in a cylindrical shape; An inner spiral groove portion having a spiral groove formed on the inside of the rotating body facing the linear moving portion; And a rotation fixing device for fixing the side surfaces of the planetary gear and the rotating body.

In addition, the rotation unit sun gear; A ring gear disposed on an outer circumferential surface of the sun gear; A planetary gear mounted at an interval between the sun gear and the ring gear; A rotating body formed in a cylindrical shape; An inner spiral groove portion having a spiral groove formed on the inside of the rotating body facing the linear moving portion; And a rotation fixing device for fixing the side surfaces of the planetary gear and the rotating body; and

The rotational force supply unit may include a driving motor mounted outside the housing portion in which the belt mounting groove is formed; A driving pulley coupled to the rotation shaft of the driving motor and disposed on the same line of the rotation unit; A driven pulley mounted on the outer side of the linear moving body constituting the linear moving part and transmitting rotational force to the sun gear; And a timing belt passing through the belt mounting groove of the housing part and wound around the driving pulley and the driven pulley.

In addition, the linear moving part is provided with a spiral groove corresponding to the inner spiral groove constituting the rotating part on the outside, and a linear moving body installed in a state in which rotation is restricted inside the housing part; A connecting member installed through the linear moving body; A pressing member connected to the connecting member protruding toward one side of the linear moving body and moving together with the connecting member to press the brake pad; A moving member connected to the connecting member protruding to the other side of the linear moving body and moving by hydraulic pressure supplied through the hydraulic pressure supply unit; And a ball bearing installed between the linear moving body and the inner spiral groove.

In addition, the housing unit comprises a first housing forming a first inner space through which the linear moving body is linearly moved; A second housing installed on one side of the first housing and forming a second inner space for moving the moving member; A third housing in communication with the second housing; A first boundary member installed between the first housing and the second housing to partition the first inner space and the second inner space; And an operation in which the hydraulic pressure supplied to the second housing through the hydraulic supply unit is moved to the third housing by opening and closing a flow path by being installed between the second housing and the third housing and operated by a control signal from a control unit. It may include a; control valve unit for controlling the.

Here, a first working fluid for performing a lubricating function may be provided inside the first housing, and a second working fluid in a liquid state may be provided between the moving member and the first boundary member.

In addition, a return part is further mounted inside the third housing to elastically press the second working fluid moved to the inside of the third housing in a direction toward the second housing, and the return part A plate-shaped return panel partitioning the inner space; And a return spring elastically supporting the return panel.

According to the present invention, the brake device to which the dual safety structure for a vehicle is applied is braking of the vehicle through the rotational force supply unit in normal times, and braking of the vehicle is performed through the hydraulic supply unit when the braking torque is limited or the rotational force supply unit is broken. There is an effect that can be improved.

In addition, by improving the structure of the rotational force supply unit, it is possible to provide greater driving force than the conventional motor, as well as to reduce the size of the motor.

1 is a schematic diagram showing an installation state of a brake device to which a vehicle dual safety structure according to the present invention is applied.
Figure 2 is a cross-sectional view showing an embodiment of a brake device to which the double safety structure for a vehicle according to the present invention is applied.
3 and 4 are cross-sectional views showing another embodiment of a brake device to which a vehicle safety structure according to the present invention is applied.
5(a) to 5(c) are views showing a coupling relationship between a rotational force supply unit and a rotation unit constituting a brake device to which a vehicle safety structure according to the present invention is applied.
6 is a cross-sectional view showing a linear moving part constituting a brake device to which a vehicle dual safety structure according to the present invention is applied.
Figure 7 is a block diagram showing a brake device to which the dual safety structure for a vehicle according to the present invention is applied.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms. It is provided to fully inform the scope of the invention to those who have it, and the invention is defined by the description of the claims. Meanwhile, terms used in the present specification are for explaining embodiments and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used herein, "comprises" or "comprising" refers to the presence of one or more other components, steps, actions and/or elements other than the recited elements, steps, actions and/or elements, or Does not exclude addition.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings, FIG. 1 is a schematic diagram showing an installation state of a brake device to which a vehicle safety structure according to the present invention is applied, and FIG. 2 is a vehicle according to the present invention. A cross-sectional view showing an embodiment of a brake device to which a double safety structure is applied, and FIGS. 3 and 4 are cross-sectional views showing another embodiment of a brake device to which the double safety structure for a vehicle according to the present invention is applied, and FIGS. 5(a) to 5( c) is a view showing the coupling relationship between the rotational force supply unit and the rotation unit constituting the brake system to which the vehicle safety structure according to the present invention is applied, and FIG. 6 is a straight line constituting the brake system to which the safety structure for a vehicle according to the present invention is applied. It is a cross-sectional view showing the eastern part.

First, since the brake device 100 applying the dual safety structure for a vehicle, which is the present invention, individually controls the braking of each wheel of the vehicle, EMB (Electro Mechanical Break), ESC (Electronic Stability Control) and ABS (Anti-lock Brake System) It can perform functions such as.

In addition, the brake device 100 to which the vehicle double safety structure is applied can implement an electric motor and hydraulic braking alone or in combination by introducing an EMB system with excellent responsiveness to a micro electric vehicle, as well as providing a large driving force. Therefore, the convenience of the driver can be improved.

Next, the brake device 100 to which the vehicle double safety structure is applied is a housing part 200, a rotational force supply part 300, a rotation part 400, a linear moving part 500, and a hydraulic pressure as shown in FIGS. 1 to 3. It includes a supply unit 600, a return unit 700, and a deceleration unit 800.

The housing part 200 is installed on each wheel of the vehicle.

And the housing part 200 is composed of a first housing 210, a second housing 230, and a third housing 250, the rotating part 400, the linear moving part 500, the return part 700 It wraps around the outside of the main parts of the back.

Here, the housing unit 200 may be formed in a variety of shapes unless the shape is limited to the drawing, in the present invention, the housing unit 200 is a first housing 210 and a second housing 230 and An example in which the third housing 250 is integrally formed will be described.

The first housing 210 has a rotational force supply unit 300, a rotational unit 400, and a linear movement unit 500 installed therein, and a linear movement body constituting the linear movement unit 500 in a horizontal direction at the center portion The first inner space 220 is formed so that it can be moved linearly.

In addition, a belt mounting groove 212 may be formed on an outer surface of the first housing 210 according to an installation position of the rotational force supply unit 300.

At this time, a brush 214 is mounted on the inner surface of the belt mounting groove 212 so as to remove foreign substances flowing in along the timing belt of the rotational force supply unit 300 to be installed later, and cooling while discharging foreign substances to the outside is at one side. A blower 216 is mounted so that it can be used.

In addition, in the first inner space 220 of the first housing 210 in which the pressurizing member constituting the linear moving part 500 is located, the pressurizing member can be cooled while preventing damage to the pressurizing member due to deviations according to external temperature. A temperature maintaining unit 218 in which a viscous liquid is provided is selectively mounted therein so that it can be performed.

The second housing 230 is formed on one side of the first housing 210 and is formed in the same line as the first inner space 220 so that the moving member constituting the linear moving part 500 can be moved. 2 inner space 240 is formed.

In addition, a first boundary member 270 is installed between the first housing 210 and the second housing 230 to partition the first inner space 220 and the second inner space 240.

Here, the first boundary member 270 is formed in the shape of a partition wall, and a boundary member through hole 272 is formed in a central portion so that the connecting member constituting the linear moving part 500 can pass therethrough.

The third housing 250 is formed on one side along the circumference of the second housing, and a third inner space 260 communicating with the second inner space 240 is formed therein.

That is, the third inner space 260 is divided into left and right sides through a moving member constituting the linear moving part 500, and a second working fluid is disposed on the left side of the third inner space 260 around the moving member. 292 is filled, and a third working fluid 293 is filled on the right side of the third inner space 260.

In addition, the housing part 200 is provided with a first working fluid 291 that performs a lubricating function inside the first housing 210 through which the linear moving part 500 is moved, and the linear moving part ( A liquid second working fluid 292 is provided between the moving member of 500) and the first boundary member 270, and a brake between the moving member of the linear moving part 500 and the hydraulic supply part 600 An oil-based third working fluid 293 is provided.

Here, the first working fluid 291, the second working fluid 292, and the third working fluid 293 may vary depending on the environment and purpose, and in the present invention, the first working fluid 292 is a lubricating oil. Is used, and brake oil is used as the second working fluid 293 and the third working fluid 294.

The rotational force supply unit 300 is fixed to the inside of the housing unit 200, and various types of magnets or electromagnets may be used within the technical idea of forming a magnetic field.

In the present invention, the rotational force supply unit 300 uses a permanent magnet and is installed in a fixed state inside the first housing 210.

In addition, the rotational force supply unit 300 may be configured as shown in FIGS. 5(b) and 5(c) to provide a large driving force.

First, the rotational force supply unit 300 of FIG. 5(b) shown is a motor 310 that is mounted on a linear moving unit 500 located between the rotation unit 400 and the hydraulic supply unit 600 and provides rotational force, and the It rotates by receiving the rotational force of the motor 310, and a sun gear connection part 330 is formed at one end, and may be composed of a rotor 320 that transmits rotational force to the rotational part 400.

That is, the rotational force supply unit 300 supplies rotational force to the rotational unit 400 through the sun gear connection unit 330 while the rotor 320 rotates when the motor 310 is driven according to the supply of electric energy.

In addition, the rotational force supply unit 300 of FIG. 5(c) is a driving motor 340 mounted outside the housing part 200 in which the belt mounting groove 212 is formed, and the rotation shaft of the driving motor 340 The driving pulley 350 coupled to, the driven pulley 360 mounted on the outer side of the linear moving body 510 constituting the linear moving part 500 and transmitting rotational force to the sun gear 462, and the housing part ( The timing belt 370 passes through the belt mounting groove 212 of 200 and is wound around the driving pulley 350 and the driven pulley 360.

That is, when the driving motor 340 is operated according to the supply of electric energy, the rotational force supply unit 300 rotates along the rotation axis of the driving motor 340, and the driving pulley 360 As the timing belt 370 wound around also rotates to rotate the driven pulley 360, the sun gear 462 is rotated.

At this time, the driving pulley 350, the driven pulley 360, and the timing belt 370 may have various sizes and pitches according to the purpose of a large driving force, and the driven pulley 360 coupled with the sun gear 462 It is natural that the connection part of) is formed in a gear shape.

The rotation unit 400 is located inside the rotational force supply unit 300 and rotates by generating electromagnetic force using electric energy.

In the present invention, the rotating part 400 is formed in a cylindrical shape, and the inside of the rotating body 420 on which the coil is wound and the rotating body 420 facing the linear moving part 500 form a groove in a spiral shape. It consists of a spiral groove (440).

In addition, the rotating part 400 may be configured as shown in FIG. 5(b).

The rotating part 400 of FIG. 5(b) is a sun gear 462 integrally configured with the sun gear connection 330 of the rotor 320, and a ring gear disposed on the outer circumferential surface of the sun gear 462 ( 464), a planetary gear 466 mounted at an interval between the sun gear 462 and the ring gear 464, a rotating body 420 formed in a cylindrical shape, and facing the linear moving part 500 It consists of an inner spiral groove portion 440 in which a groove is formed in a spiral shape inside the rotation body 420 and a rotation fixture 468 fixing the side surfaces of the planetary gear 466 and the rotation body 420.

That is, the rotation unit 400 is a planetary gear located between the sun gear 462 and the ring gear 464 when the sun gear 462 connected to the sun gear connection unit 330 constituting the rotational force supply unit 300 rotates. 466 is rotated, and the rotating body 420 is rotated by receiving a rotational force through a rotation fixture 468 connected to the planetary gear 466.

For supplementary explanation, the rotation part 400 rotates in place when the sun gear connection part 330 is operated, and the planetary gear 466 is formed of the sun gear 462 and the ring gear 464. It rotates in the circumferential direction in the interspace. At this time, the planetary gear 466 transmits the rotational force to the rotational body 420 through the rotational fixture 468 connected to the rotational body 420.

At this time, the ring gear 464 is mounted on the housing part 200 to transmit smooth rotational force.

The linear moving part 500 is located inside the fixing part 300 and interlocked with the rotation of the rotating part 400 to move linearly to press the brake pad 20.

And the linear moving part 500, as shown in Fig. 6, a linear moving body 510, an outer spiral groove 520, a pressing module part 540, a connecting member 550, a pressing member 560, a moving member ( 570), and a ball bearing 580.

The linear moving body 510 has a helical groove corresponding to the inner helical groove 440 on the outside and is installed inside the housing part 200 in a state in which rotation is restricted.

The outer spiral groove portion 520 is formed on the outside of the linear moving body 510 and a spiral groove corresponding to the inner spiral groove portion 440 is formed.

At this time, a ball bearing 580 is installed between the outer spiral groove 520 and the inner spiral groove 440 of the linear moving body 510, and the end of the linear moving body 510 is in the housing part 200. It is caught and rotation is constrained.

Therefore, when the rotating part 400 is rotated, the linear moving body 510 meshed with the ball bearing 580 together with the rotating part 400 is moved in a horizontal direction.

The pressing module part 540 is installed in a shape penetrating the linear moving body 510 and may be formed in various shapes within the technical idea of pressing the brake pad 20 by interlocking when the linear moving body 510 moves. .

In addition, the pressing module part 540 includes a connecting member 550, a pressing member 560, and a moving member 570.

That is, the pressing module unit 540 is a single member consisting of a connecting member 550, a pressing member 560, and a moving member 570, and when the rotational force supply unit 400 or the hydraulic supply unit 600 is operated, the brake pad It pressurizes (20) to form a braking force.

At this time, a bush member 280 is additionally installed between the connecting member 550 and the linear moving body 510 to reduce friction generated when the pressing module unit 540 including the connecting member 550 moves linearly. .

The connecting member 550 is installed in a shape penetrating the linear moving body 510.

In addition, the connecting member 550 is formed in a rod shape, and the length is equal to or longer than the length of the linear moving body 510.

The pressing member 560 is connected to the connecting member 550 protruding toward one side of the linear moving body 510 and moved together with the connecting member 550 to press the brake pad 20.

The moving member 570 is connected to the connecting member 550 protruding to the other side of the linear moving body 510, and is moved by the hydraulic pressure supplied through the hydraulic supply unit 600, and in the present invention, the moving member The 570 is formed in a plate shape and is connected to the other end of the connecting member 550.

The hydraulic supply unit 600 is connected to the booster unit 850 and supplies hydraulic pressure generated by the booster unit 850 to the inside of the housing unit 200.

Here, the hydraulic supply unit 600 is connected to the housing unit 200 and various modifications are possible within the technical concept of supplying hydraulic pressure for moving the linear moving unit 500. The hydraulic supply unit 600 according to an embodiment includes a hydraulic line 620.

In addition, the booster unit 850 includes a plurality of operating members that are moved by a force that the driver presses the brake pedal. One side of the plurality of hydraulic lines 620 is connected to the booster unit 850, and the other side of the hydraulic line 620 is connected to the third housing 250 of the housing unit 200.

Therefore, the hydraulic pressure generated by the operation of pressing the brake pedal is moved to the housing part 200 through the hydraulic line 620.

The return part 700 is installed inside the third housing 250, and elastically presses the second working fluid 292 moved to the inside of the third housing 250 in a direction toward the second housing 230 It can be transformed into a variety of shapes within the thought of technology.

The return unit 700 according to an embodiment includes a return panel 720, a return spring 740, and a connection shaft 760.

The return panel 720 has a plate shape that divides the third inner space 260, which is the inner space of the third housing 250, and a return spring ( 740) is installed.

Here, since the return spring 740 elastically supports the return panel 720, the return panel 720 can press the second working fluid 292 or the third working fluid 293 with a set force.

The control unit 800 exchanges control signals with the booster unit 850 and controls the operation of the control valve unit 900 installed inside the housing unit 200.

Here, the control unit 80 may be installed together with the electric device 860 provided in the booster unit 850 and may be variously installed.

The booster unit 850 senses the movement of the brake pedal and supplies hydraulic pressure to the inside of the housing unit 200 through the hydraulic line 620, or the brake pedal from the electric unit 860 installed in the booster unit 850. Upon detecting the movement of and transmitting the measured value to the control unit 800, the control unit 800 generates a control signal for rotating the rotating unit 400 installed in the housing unit 200.

Here, a plurality of hydraulic lines 620 and power lines 880 are installed between the brake device 100 to which the vehicle safety structure is applied and the booster unit 85 so that they can be operated by hydraulic and electric energy, respectively.

Next, the brake device 100 to which the vehicle double safety structure is applied may further include a control valve unit 900.

The control valve unit 900 is installed between the second housing 230 and the third housing 250 and is operated by a control signal from the controller 800 to open and close the flow path.

Therefore, the hydraulic pressure supplied to the second housing 230 through the hydraulic supply unit 600 does not press the moving member 570 of the pressure module unit 540, but the third housing ( 250). The control valve unit 900 according to an embodiment uses a solenoid valve.

An embodiment of a brake device to which the dual safety structure for a vehicle configured as described above is applied will be described as follows.

When the brake device 100 applying the dual safety structure for a vehicle is operated using electric energy, the movement of the brake pedal and the moving distance are sensed by the booster unit 850, and a control signal through the control unit 800 is transmitted to each wheel. It is transmitted to the brake device 100 to which the dual safety structure for the vehicle mounted on is applied.

When the rotating unit 400 rotates through magnetic force change or a motor or a driving motor, the linear moving body 510 installed inside the rotating unit 400 with the ball bearing 580 interposed therebetween is moved in a linear direction.

Thereafter, when the linear movement body 510 is moved in the direction toward the brake pad 20, the pressing member 560 of the pressing module part 540 is pushed by the linear movement body 510 to the wheel disk 22. By pressing the brake pad 20 in the contacting direction, the brake pad 20 contacts the wheel disk 22 and brakes the vehicle.

At this time, the oil in front of the moving member 570 corresponding to the piston is moved to the return unit 700 so that there is no loss of force due to hydraulic pressure.

Further, the second working fluid 292 is moved to the third inner space 260 and presses the return panel 720 of the return unit 700, so that the return spring 740 is compressed.

Next, in a state in which the brake pad 20 is first moved by the supply of electric energy, the hydraulic pressure generated by the booster unit 850 is supplied to the inside of the housing unit 200 through the hydraulic line 620. .

At this time, since the hydraulic pressure moved to the third inner space 260 through the hydraulic line 620 presses the moving member 570, the pressing member 560 moves together with the moving member 570 to move the brake pad 20 Since the additional pressure is applied, the braking force is improved.

Next, when the linear moving part 500 is moved in a direction away from the brake pad 20 by the reverse rotation of the rotating part 400, the return spring 740 is operated to press the return panel 720. 3 The second working fluid 292 moved to the inner space 260 is moved between the moving member 570 and the first boundary member 270 again.

Therefore, the pressing module part 540 including the moving member 570 is moved to the initial position.

Next, when the driver presses the brake pedal, hydraulic pressure may be generated, but when hydraulic pressure is not required by the control logic of the brake device 100 to which the vehicle double safety structure is applied, the control valve unit 900 is opened and 3 The hydraulic pressure supplied to the inner space 260 is subtracted to the second inner space 240 in which the return unit 700 is installed.

At this time, the operation of the pressing module unit 540 is performed only by the rotation of the rotating unit 400.

Next, the brake device 100 to which the vehicle double safety structure is applied can control the movement of the pressure module unit 540 corresponding to the piston to the left or right, and use it with the booster unit 850 to provide double safety. The structure can be implemented.

In addition, the brake device 100 to which a vehicle double safety structure that obtains braking power by hydraulic pressure and electric energy is applied can be used simultaneously with the electronically controlled hydraulic booster unit 850.

At this time, the main brake is braked by moving the pressurizing module unit 540 by the rotation of the rotor, and hydraulic pressure can be used as an aid when the braking torque is insufficient according to the driving situation.

Next, when a problem occurs in the generation of braking force using electric energy, the electronically controlled hydraulic booster unit 850 is operated and emergency braking is performed by pushing the moving member 570 corresponding to the piston by hydraulic pressure.

In addition, the control unit 800 may control the control valve unit 900 using the linear solenoid valve to appropriately adjust the hydraulic pressure according to the braking method and the control mode.

When the brake device 100 to which the vehicle safety structure according to an embodiment of the present invention is applied is operated only by hydraulic pressure, hydraulic pressure is generated from the booster unit 850 when the driver presses the brake pedal.

Since the hydraulic pressure supplied through the hydraulic line 620 presses the moving member 570, the pressing member 560 moves the brake pad 200 to generate a braking force. At this time, the control valve unit 900 does not operate.

In this way, the brake device to which the dual safety structure for vehicles is applied can be operated only by hydraulic pressure or by electric energy only. Alternatively, hydraulic and electric energy can be operated at the same time. In general, braking is performed using only hydraulic or electric energy, and various modifications such as double braking using other energy sources are possible only for special cases.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains, various modifications and variations can be made without departing from the essential characteristics of the present invention.

Therefore, the embodiments expressed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed by the following claims, and all technical ideas equivalent to or within the scope should be construed as being included in the scope of the present invention.

20: brake pad 22: wheel disc
100: brake system with dual safety structure for vehicles
200: housing part 210: first housing
220: first inner space 230: second housing
240: second inner space 250: third housing
260: third inner space 270: first boundary member
280: bush member 291: first working fluid
292: second working fluid 293: third working fluid
300: torque supply unit 310: motor
320: rotor 330: sun gear connection
340: drive motor 350: drive pulley
360: driven pulley 370: timing belt
400: rotating part 420: rotating body
440: inner spiral groove 462: sun gear
464: ring gear 466: planetary gear
500: linear moving part 510: linear moving body
520: outer spiral groove portion 540: pressure module portion
550: connecting member 560: pressing member
570: moving member 580: ball bearing
600: hydraulic supply unit 620: hydraulic line
700: return unit 720: return panel
740: return spring 760: connecting shaft
800: control unit 850: booster unit
860: electronic part 880: power line
900: control valve part

Claims (8)

A housing portion having first, second, and third inner spaces located inside the brake pads at both ends of the vehicle's wheel disks;
A rotational force supply unit mounted on the inside of the housing unit and having a motor providing rotational force;
A rotating unit having a cylindrical rotating body that receives rotational force from the motor of the rotational force supply unit and rotates;
A linear moving part connected to the inside of the rotating body and moving linearly while interlocking with the rotating body when the motor rotates to press the brake pad on the first inner space of the housing part; And
A hydraulic pressure supply unit connected to the housing unit and supplying hydraulic pressure for moving the linear moving unit through the second inner space,
The rotating body
A brake device employing a double safety structure for a vehicle, which rotates in place in the third inner space by using the rotational force supplied from the motor and moves the linear moving part linearly.
The method of claim 1,
The rotational force supply unit,
It is mounted on a linear moving part located between the rotating part and the hydraulic supply part and rotates by receiving the rotational force of a motor providing rotational force, and a sun gear connection part is formed at one end, and a rotor that transmits the rotational force to the rotational part. Brake system with dual safety structure for in-vehicle vehicles.
The method of claim 2,
The rotating part,
A sun gear integrally configured with a sun gear connection portion of the rotor;
A ring gear disposed on an outer circumferential surface of the sun gear;
A planetary gear mounted at an interval between the sun gear and the ring gear;
An inner spiral groove portion having a spiral groove formed on the inside of the rotating body facing the linear moving portion; And
A brake device to which a dual safety structure for a vehicle is applied, further comprising a rotation fixing device for fixing a side surface of the planetary gear and the rotating body.
The method of claim 1,
The rotational force supply unit
A driving pulley coupled to a rotation shaft of the motor mounted outside the housing part in which the belt mounting groove is formed and disposed on the same line of the rotation part;
A driven pulley mounted on the outer side of the linear moving body constituting the linear moving part and transmitting rotational force to the sun gear; And
A brake device applying a double safety structure for a vehicle comprising a timing belt penetrating the belt mounting groove of the housing part and wound around the driving pulley and the driven pulley.
The method of claim 1,
The linear moving part,
A linear moving body having a helical groove corresponding to the inner helical groove constituting the rotating part provided on the outside, and installed in a state in which rotation is restricted inside the housing part;
A connecting member installed through the linear moving body;
A pressing member connected to the connecting member protruding toward one side of the linear moving body and moving together with the connecting member to press the brake pad;
A moving member connected to the connecting member protruding to the other side of the linear moving body and moving by hydraulic pressure supplied through the hydraulic pressure supply unit; And
A brake device applying a dual safety structure for a vehicle comprising a ball bearing installed between the linear moving body and the inner spiral groove.
The method of claim 5,
The housing part,
A first housing forming the first inner space so that the linear moving body can move linearly;
A second housing installed on one side of the first housing and forming the second inner space, which is a space in which the moving member moves;
A third housing in communication with the second housing;
A first boundary member installed between the first housing and the second housing to partition the first inner space and the second inner space; And
It is installed between the second housing and the third housing, and is operated by a control signal from the control unit to open and close a flow path, so that the hydraulic pressure supplied to the second housing through the hydraulic supply unit is moved to the third housing. A brake device to which a double safety structure for a vehicle is applied, which includes a control valve to control.
The method of claim 6,
A first working fluid that performs a lubricating function is provided inside the first housing,
A brake device employing a dual safety structure for a vehicle, wherein a second working fluid in a liquid state is provided between the moving member and the first boundary member.
The method of claim 6,
A return part is further mounted inside the third housing to elastically press the second working fluid moved to the inside of the third housing in a direction toward the second housing,
The return part
A plate-shaped return panel partitioning the inner space of the third housing; And
A brake device to which a double safety structure for a vehicle is applied, comprising a return spring for elastically supporting the return panel.

Images