Hydraulic valve block and brake actuation device comprising a hydraulic valve block

Abstract

Embodiments of the present invention relate to a hydraulic valve block for a brake actuator that supports an electronic control unit on one side and a motor unit controlled by the electronic control unit on the other side, and a brake actuator including the same, the hydraulic valve block including: a block body provided with a valve that operates according to an electrical signal input to the electronic control unit and restricts the flow of brake oil; a block through-hole formed in the block body to support the motor unit; a drain flow passage formed through the block body; and a first drain hole formed at one end of the drain flow passage and disposed on the other side of the block body supporting the motor unit, above the center of the block through-hole.

Description

Technical Field

[0001] Embodiments of the present invention relate to a hydraulic valve block and a brake drive device including the hydraulic valve block, and more specifically, to a hydraulic valve block that can improve the life of a brake drive device by maintaining pressure balance inside the brake drive device and a brake drive device including the hydraulic valve block. Background Technology

[0002] Typically, a brake actuation system provides braking force based on the force applied by the driver when pressing the brake pedal in a vehicle equipped with a brake actuation system. This braking force is applied to the vehicle's wheels, reducing the vehicle's speed and thus achieving braking.

[0003] The braking force is varied according to the pedaling force by switching and changing the position of multiple solenoid valves caused by hydraulic pressure.

[0004] For brake actuators that require a compact installation space, the increased internal pressure during motor operation can damage the motor. Motor damage reduces the lifespan of the brake actuator, and replacing the brake actuator is time-consuming and costly.

[0005] Specifically, due to the increased pressure in the motor and internal components, there is a problem of shortened lifespan of the brake drive and a shorter replacement cycle for the components that make up the brake drive.

[0006] [Patent Literature]

[0007] (Patent Document 0001) Korean Patent Publication No. 10-2018-0032382 (Publication Date: 2018.03.30) Summary of the Invention

[0008] (a) Technical problems to be solved

[0009] Embodiments of the present invention provide a hydraulic valve block and a brake drive device including the hydraulic valve block, which can maintain the pressure balance inside the motor unit when the motor unit pressure increases due to motor unit operation by connecting the inside and outside of the motor unit.

[0010] (II) Technical Solution

[0011] According to an embodiment of the present invention, a hydraulic valve block is provided, which is a hydraulic valve block of a brake drive device supported on one side by an electronic control unit and on the other side by a motor unit controlled by the electronic control unit. The valve block includes: a block body, on which a valve is provided, the valve being operated according to an electrical signal input to the electronic control unit and constraining the flow of brake oil; a block through hole formed on the block body to support the motor unit; a discharge channel formed through the block body; and a first discharge hole formed at one end of the discharge channel and disposed on the other side of the block body supporting the motor unit, above the center of the block through hole.

[0012] Furthermore, the first discharge hole is formed on the motor support area facing a portion of the motor unit on the other side of the block.

[0013] Furthermore, the hydraulic valve block further includes a second discharge port formed at the other end of the discharge channel and disposed on one side of the block.

[0014] Furthermore, on the block, the center of the second discharge hole is configured to be relatively higher than the center of the first discharge hole.

[0015] Furthermore, the hydraulic valve block further includes a second discharge port formed at the other end of the discharge channel and configured to communicate with an adjacent surface of the block, the adjacent surface of the block being adjacent to another side of the block supporting the motor unit.

[0016] Furthermore, the second discharge hole is formed in the lower part of the block.

[0017] Furthermore, according to an embodiment of the present invention, a brake drive device includes: an electronic control unit; a motor unit controlled by the electronic control unit; a hydraulic valve block having a valve internally disposed therein, the valve being operated according to an electrical signal input to the electronic control unit to constrain the flow of brake fluid, and the hydraulic valve block including a block body supporting the electronic control unit on one side and the motor unit on the other side; and a discharge unit to maintain the balance of internal pressure caused by the operation of the motor unit.

[0018] Furthermore, the emission unit includes an emission channel that extends through the block and guides the motor unit to communicate with the outside of the block.

[0019] Furthermore, the discharge unit further includes a first discharge hole disposed on the other side of the block and formed at one end of the discharge channel.

[0020] Furthermore, the first discharge port is formed as part facing the motor unit.

[0021] Furthermore, a block through-hole for supporting the motor unit is formed in the block, and the center of the first discharge hole is configured to be relatively higher than the center of the block through-hole on the block.

[0022] Furthermore, the discharge unit further includes a second discharge port, disposed on one side of the block and formed on the other side of the discharge channel.

[0023] Furthermore, the second discharge port faces the electronic control unit.

[0024] Furthermore, the discharge unit further includes a second discharge port configured to communicate with the lower part of the block and with the other side of the discharge channel.

[0025] Furthermore, the discharge unit further includes a filter section disposed in the block and communicating with the second discharge hole.

[0026] (III) Beneficial Effects

[0027] According to an embodiment of the present invention, the hydraulic valve block and the brake drive device including the hydraulic valve block can maintain the pressure balance inside the motor unit when the motor unit pressure increases due to operation by communicating the inside and outside of the motor unit. Attached Figure Description

[0028] Figure 1 This is a diagram illustrating a brake drive device according to an embodiment of the present invention.

[0029] Figure 2 yes Figure 1 A magnified view of the side profile.

[0030] Figure 3 and Figure 4 A hydraulic valve block according to a first embodiment of the present invention is shown.

[0031] Figure 5 and Figure 6 A hydraulic valve block according to a second embodiment of the present invention is shown.

[0032] <Explanation of Figure Markers>

[0033] 100: Electronic control unit; 101: Brake drive device

[0034] 200, 202: Hydraulic valve block; 210: Block body

[0035] 220: Motor support area; 215: Through hole.

[0036] 400: Emission unit; 410: Emission channel

[0037] 411: First discharge port; 412: Second discharge port

[0038] 420: Filtration section Detailed Implementation

[0039] The invention will now be described in detail with reference to the accompanying drawings to enable those skilled in the art to readily implement embodiments of the invention. The invention is not limited to the embodiments described below and can be implemented in many different forms.

[0040] It should be noted that the accompanying drawings are schematic and not cumulative. For clarity and convenience, the relative dimensions and ratios of parts in the drawings are shown enlarged or reduced, and the arbitrary dimensions are merely illustrative and not limiting. Furthermore, the same components or parts shown in more than two drawings use the same reference numerals to indicate that they have similar features.

[0041] The embodiments of the present invention specifically illustrate ideal embodiments of the invention. As a result, various variations of the illustrations can be predicted. Therefore, the embodiments are not limited to the specific morphology of the shown portions, but also include, for example, morphological variations caused by manufacturing processes.

[0042] Below, refer to Figures 1 to 4 This describes a brake drive device 101 according to an embodiment of the present invention.

[0043] like Figure 1 and Figure 2 As shown, the brake drive device 101 includes an electronic control unit 100, a hydraulic valve block 200, a motor unit 300, and a discharge unit 400.

[0044] The electronic control unit 100 receives information from sensors capable of detecting pedal force or pedal displacement, such as those found in the pedal. Specifically, for example... Figure 1 As shown, in the brake drive unit 101, the mounting bracket 500 is supported by the vehicle, the brake pedal is mounted on the input lever 600 and receives the pedal force from the driver.

[0045] The hydraulic valve block 200 has a flow channel controlled by a valve inside, which is controlled by brake oil. Furthermore, the valve installed in the hydraulic valve block 200 is operated according to the electrical signal input to the electronic control unit 100, and controls the flow of brake oil.

[0046] An electronic control unit 100 is provided on one side of the hydraulic valve block 200.

[0047] The motor unit 300 is supported on the other side of the hydraulic valve block 200. Furthermore, the motor unit 300 is controlled after receiving a signal from the electronic control unit 100. Specifically, the motor unit 300 can be supported on the opposite side of the electronic control unit 100 with the hydraulic valve block 200 as the center.

[0048] The discharge unit 400 connects the interior and exterior of the motor unit 300 to maintain a balance of internal pressure caused by the operation of the motor unit 300. Specifically, the discharge unit 400 includes a discharge channel 410, a first discharge port 411 at one end of the discharge channel 410, and a second discharge port 412 at the other end of the discharge channel 410. The discharge channel 410 is formed in the hydraulic valve block 200.

[0049] A brake drive device 101 according to one embodiment of the present invention may include a hydraulic valve block 200 according to a first embodiment of the present invention or a hydraulic valve block 202 according to a second embodiment of the present invention.

[0050] And, as Figure 3 and Figure 4 As shown, the hydraulic valve block 200 according to the first embodiment of the present invention includes a block body 210, a block through hole 215, a discharge channel 410, and a first discharge hole 411.

[0051] The block 210 has a valve (not shown) and a flow channel for regulating and guiding the movement of brake fluid. Furthermore, the block 210 supports an electronic control unit 100 on one side and a motor unit 300 on the other side.

[0052] The through-hole 215 is formed such that the motor unit 300 is supported on the block 210. Specifically, the through-hole 215 is formed through the block 210 so that a portion of the motor unit 300 is inserted and supported.

[0053] The discharge channel 410 is formed through the block 210. Furthermore, the discharge channel 410 is separated from the block through-hole 215 and is formed through the block 210. In addition, the discharge channel 410 can guide the pressure and hot air inside the motor unit 300 to the outside. That is, it guides external air to flow in through the discharge channel 410 and guides the air inside the motor unit 300 to discharge through the discharge channel 410.

[0054] A first discharge port 411 is formed at one end of the discharge channel 410. The first discharge port 411 can guide the pressure and hot air inside the motor unit 300 to move to the outside of the motor unit 300.

[0055] Furthermore, the first discharge hole 411 is disposed on the other side of the block 210 supporting the motor unit 300. Also, the center of the first discharge hole 411 can be disposed above the center of the block through hole 215.

[0056] Therefore, in the hydraulic valve block 200 according to the first embodiment of the present invention, the first discharge hole 411 is disposed on the upper side of the center of the block through hole 215, so that when oil leakage occurs inside the motor unit 300, oil accumulates on the lower side inside the motor unit 300. Thus, oil can be prevented from flowing into the first discharge hole 411 and blocking the first discharge hole 411 or the discharge channel 410.

[0057] That is, when the leaked oil accumulates at the bottom of the motor unit 300 due to gravity, the first drain hole 411 is located above the center of the block through hole 215, thus preventing the leaked oil from flowing into the first drain hole 411 and effectively communicating with the motor unit 300.

[0058] In addition, such as Figure 3 and Figure 4 As shown, according to the first embodiment of the present invention, the first discharge hole 411 can be formed in the motor support region 220.

[0059] A motor support region 220 may be formed on the other side 211 of the block 210 supporting the motor unit 300. This motor support region 220 may face a portion of the motor unit 300. Specifically, the motor support region 220, as a region surrounding the other side 211 of the block 210 with the through hole 215, may be a motor sealing region for maintaining the watertightness between the motor unit 300 and the block 210.

[0060] The first discharge hole 411 is formed in the motor support region 220, thus preventing moisture from flowing into the discharge channel 410 when air moves between the motor unit 300 and the discharge channel 410. That is, the first discharge hole 411 is formed in a sealing region that maintains watertightness when the motor unit 300 is engaged with the block 210. Therefore, the first discharge hole 411 prevents moisture from flowing in and effectively guides pressurized and hot air to be discharged between the motor unit 300 and the discharge channel 410.

[0061] Furthermore, a second discharge hole 412 is formed at the other end of the discharge channel 410 formed in the hydraulic valve block 200 according to the first embodiment of the present invention.

[0062] The second discharge port 412 can be configured on one side 212 of the block 210. Furthermore, the second discharge port 412 is configured separately from the block through hole 215 on one side 212 of the block 210, so that the hot air and pressure moving through the motor unit 300 to the discharge channel 410 can be guided to the outside of the block 210.

[0063] For example, the second discharge port 412 is connected to the electronic control unit 100 so that the hot air and pressure of the motor unit 300 can be discharged to the filter section supported by the electronic control unit 100. Therefore, through the filter section supported by the electronic control unit 100, external air can effectively flow into the motor unit 300 through the discharge channel 410.

[0064] Furthermore, the center of the second discharge port 412 of the hydraulic valve block 200 according to the first embodiment of the present invention can be configured to be relatively higher than the center of the first discharge port 411.

[0065] The second exhaust port 412 can guide external air passing through the filter into the motor unit 300. Therefore, compared to the first exhaust port 411, the second exhaust port 412 is positioned higher on the valve block 210, thereby reducing the inflow of contaminants into the second exhaust port 412. Specifically, when the brake drive unit 101 is supported in the vehicle by the mounting bracket 500, the center of the second exhaust port 412 is positioned relatively higher than the center of the first exhaust port 411, thereby effectively reducing the inflow of pollutants from the ground over which the vehicle passes into the second exhaust port 412.

[0066] Below, refer to Figure 5 and Figure 6 The hydraulic valve block 202 according to the second embodiment of the present invention is described below.

[0067] The hydraulic valve block 202 of the second embodiment of the present invention has the same structure as the block 210, discharge channel 410, first discharge hole 411 and configuration structure of the hydraulic valve block 200 of the first embodiment of the present invention.

[0068] According to the second embodiment of the present invention, the discharge channel 410 of the hydraulic valve block 202 can be formed through the block 210.

[0069] According to the second embodiment of the present invention, the other end of the discharge channel 410 of the hydraulic valve block 202, namely the second discharge hole 412, can be configured to communicate with the adjacent surface 213 of the block 210 on the other side 211 of the adjacent block 210.

[0070] The second discharge port 412 can be configured to communicate between another side of the block 210 supporting the motor unit 300 and one side 212 of the block 210 supporting the electronic control unit 100. Specifically, the discharge unit 400 of the brake drive device 101 according to an embodiment of the present invention may further include a filter section 420. Furthermore, the filter section 420 may be supported on the block 210 and communicate with the second discharge port 412.

[0071] For example, in the second embodiment of the present invention, the adjacent surface 213 of the block 210 of the hydraulic valve block 202 may be the lower surface of the block 210.

[0072] Therefore, the filter section 420 is inserted into and supported on the adjacent surface 213 of the block 210 to communicate with the second discharge port 412. Furthermore, when guiding outside air into the second discharge port 412, the filter section 420 can filter out foreign matter included in the outside air. For example, the filter section 420 can be a membrane structure.

[0073] According to the structure described above, the brake drive device 101 according to an embodiment of the present invention is connected to the outside, thus effectively eliminating pressure changes or heat generation inside the brake drive device 101.

[0074] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, it should be understood that those skilled in the art can implement the invention in other specific forms within the scope of the technical concept of the invention or without changing the essential features.

[0075] Therefore, the above embodiments are merely illustrative in all respects and are not limiting. They should be interpreted as meaning that the scope of the invention is indicated by the detailed claims, and that the meaning and scope of the claims and all modifications or variations derived from their equivalent concepts are included within the scope of the invention.

Claims

1. A hydraulic valve block, comprising a brake drive device for a motor unit controlled by the electronic control unit, wherein one side supports an electronic control unit and the other side supports a brake drive device for a motor unit controlled by the electronic control unit, the hydraulic valve block comprising: The block is equipped with a valve that operates according to an electrical signal input to the electronic control unit and restricts the flow of brake fluid. A through-hole is formed on the block to support the motor unit; The discharge channel is formed by penetrating the block. A first discharge hole is formed at one end of the discharge channel and disposed on the other side of the block supporting the motor unit, above the center of the block through hole; as well as A second discharge port is formed at the other end of the discharge channel, and is disposed on one side of the block and communicates with the electronic control unit. In this configuration, the center of the second discharge hole is positioned relatively higher than the center of the first discharge hole on the block.

2. The hydraulic valve block according to claim 1, wherein, The first discharge hole is formed on the motor support area facing a portion of the motor unit on the other side of the block.

3. The hydraulic valve block according to claim 1, further comprising: A filter section is disposed in the block and communicates with the second discharge hole.

4. A brake drive device, comprising: Electronic control unit; The motor unit is controlled by the electronic control unit; The hydraulic valve block has a valve inside, which is operated according to an electrical signal input to the electronic control unit to restrict the flow of brake fluid. The hydraulic valve block includes a block body, one side of which supports the electronic control unit and the other side of which supports the motor unit. as well as The discharge unit maintains a balance of internal pressure within the motor unit caused by its operation. The emission unit includes: An exhaust channel is formed by penetrating the block and guiding the motor unit to communicate with the outside of the block; A first discharge port is disposed on the other side of the block and formed at one end of the discharge channel, wherein a block through-hole supporting the motor unit is formed in the block, and the center of the first discharge port is configured to be relatively higher than the center of the block through-hole on the block; and The second discharge port is disposed on one side of the block and communicates with the electronic control unit, and is formed on the other side of the discharge channel.

5. The brake drive device according to claim 4, characterized in that, The first discharge port is formed as part facing the motor unit.

6. The brake drive device according to claim 4, characterized in that, The second discharge port faces the electronic control unit.

7. The brake drive device according to claim 4, wherein, The electronic control unit includes: The filter section faces the second discharge port.

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