Hydraulic block of electronic brake system for vehicle

1. A hydraulic block of an electronic braking device for vehicles, comprising:

a first input port for receiving brake oil from a master cylinder;

a first output port for discharging the brake oil to a wheel brake;

a first inlet valve port for accommodating a first inlet valve disposed on a first inlet flow path connecting the first input port to the first output port; and

a first outlet valve port for accommodating a first outlet valve disposed on a first outlet flow path configured to depressurize the brake oil,

wherein the first outlet flow path is configured to pressurize the first outlet valve in an axial direction of a first plunger mounted inside the first outlet valve and to deliver the brake oil to the first outlet valve,

the first outlet flow path includes a first linear-decompression flow path,

the first linear-decompression flow path being configured to bypass the brake oil delivered from the first input port in a vertically downward direction, and to supply the brake oil to the first outlet valve in a direction parallel to the first outlet valve port,

the first linear-decompression flow path is vertically connected with the first outlet flow path to receive the brake oil, and

the first linear-decompression flow path includes at least two perpendicularly-bent portions after the brake oil passes a connection point of the first linear-decompression flow path with the first outlet flow path and before the brake oil reaches the first outlet valve port.

2. The hydraulic block of claim 1 , wherein

the first outlet valve is configured to receive the brake oil from the first outlet flow path in the axial direction of the first plunger and to linear-decompress the brake oil.

3. The hydraulic block of claim 1 , wherein

the first outlet flow path and the first linear-decompression flow path are disposed on different planes.

4. The hydraulic block of claim 1 , wherein

the first linear-decompression flow path bypasses the brake oil to supply the brake oil to the first outlet valve in a direction to which the first plunger is pushed up.

5. The hydraulic block of claim 4 , wherein

both of the first outlet valve port and the first linear-decompression flow path are disposed to pass through one plane parallel to a bottom plane of the hydraulic block.

6. The hydraulic block of claim 1 , further comprising,

a second output port for discharging the brake oil from the first input port to another wheel brake;

a second inlet valve port for accommodating a second inlet valve disposed on a second inlet flow path connecting the first input port to the second output port; and

a second outlet valve port for accommodating a second outlet valve installed on a second outlet flow path configured to depressurize the brake oil,

wherein the second outlet flow path is configured to pressurize the second outlet valve in an axial direction of a second plunger mounted inside the second outlet valve and to deliver the brake oil to the second outlet valve.

7. The hydraulic block of claim 6 , wherein

the second outlet valve is configured to receive the brake oil from the second outlet flow path in the axial direction of the second plunger and to linear-decompress the brake oil.

8. The hydraulic block of claim 6 , wherein

the second outlet flow path includes a second linear-decompression flow path,

the second linear-decompression flow path being configured to bypass the brake oil delivered from the first input port in a vertically downward direction, and to supply the brake oil to the second outlet valve in a direction parallel to the second outlet valve port.

9. The hydraulic block of claim 8 , wherein

the second linear-decompression flow path is vertically connected with the second outlet flow path to receive the brake oil in a vertically downward direction, and

the second linear-decompression flow path bypasses the brake oil to supply the brake oil to the second outlet valve in a direction to which the second plunger is pushed up.

10. The hydraulic block of claim 9 , wherein

both of the second outlet valve port and the second linear-decompression flow path are disposed to pass through one plane parallel to a bottom plane of the hydraulic block.

11. The hydraulic block of claim 6 , wherein

the second outlet flow path and the second linear-decompression flow path are disposed on different planes.