Brake drive device

Abstract

The present invention relates to a brake actuator device including a hydraulic valve block formed with a discharge flow passage for discharging air to the outside, an electronic control device supported on one side of the hydraulic valve block and including an electrical equipment housing formed with a vent hole opening in the direction of the discharge flow passage of the hydraulic valve block and connected with an internal space, and a filter attached to the electrical equipment housing to shield the vent hole in a manner allowing air to pass, and a discharge port sealing member for sealing a space between the hydraulic valve block and the electronic control device and surrounding the discharge flow passage, the vent hole and the filter.

Description

Technical Field

[0001] The present invention relates to a brake drive device, and more specifically, to a brake drive device that can prevent internal pressure changes caused by temperature variations in one or more of the electronic control unit and the motor. Background Technology

[0002] Typically, the brake actuation system provides braking force to the brakes based on the force applied by the driver when pressing the brake pedal. The brakes then reduce the rotational speed of the wheels based on the received braking force, thereby slowing the vehicle and achieving braking. This braking force varies according to the pedal input force through the switching and positional changes of multiple solenoid valves under hydraulic pressure.

[0003] Furthermore, in brake drive units that are required to be compact due to limited installation space, the internal pressure can easily rise due to increased temperature during the operation of the motor used to generate braking force. Excessive internal pressure can potentially damage the motor or cause oil leaks.

[0004] In addition, for electronic control devices that control drive motors, the internal pressure may easily rise due to the heat generated by the printed circuit board. When the internal pressure rises excessively, it may damage the electronic control device.

[0005] As mentioned above, when temperature changes in the motor and electronic control unit, which are the main components of the brake drive device, lead to an increase in internal pressure, there is a problem of reduced overall lifespan of the brake drive device and shortened replacement cycle of components. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] Embodiments of the present invention provide a brake drive device that can stably maintain the balance of internal pressure.

[0008] (II) Technical Solution

[0009] According to an embodiment of the present invention, a brake drive device includes: a hydraulic valve block having an exhaust channel for discharging air to the outside; an electronic control device supported on one side of the hydraulic valve block and including an electrical housing and a filter, the electrical housing having a vent hole opening toward the exhaust channel of the hydraulic valve block and connected to an internal space, the filter being attached to the electrical housing to block the vent hole in a manner that allows air to pass through; and an exhaust port sealing member for sealing the space between the hydraulic valve block and the electronic control device, and surrounding the exhaust channel, the vent hole, and the filter.

[0010] The brake drive device may further include a main sealing member that seals the space between the hydraulic valve block and the electronic control device, and is formed along the edge of the electrical equipment housing facing the hydraulic valve block.

[0011] The hydraulic valve block may have a valve inside for controlling the flow of brake fluid.

[0012] The electronic control device may further include a printed circuit board housed in the internal space of the electrical equipment housing, and generate an electrical signal for controlling the valve of the hydraulic valve block.

[0013] The brake drive device may further include a motor, which is supported on the other side of the hydraulic valve block and controlled by the electronic control device.

[0014] The filter may include a membrane filter.

[0015] The discharge port sealing member and the main sealing member may be made of Cured In Place Gaskets (GIPG).

[0016] (III) Beneficial Effects

[0017] According to an embodiment of the present invention, the brake drive device can stably maintain the balance of internal pressure. Attached Figure Description

[0018] Figure 1 This is a perspective view of a brake drive device according to an embodiment of the present invention.

[0019] Figure 2 yes Figure 1 A partially enlarged 3D image.

[0020] Figure 3 It is shown in magnification Figure 2 A magnified 3D view of the part indicated by F3.

[0021] Figure 4 It is cutting Figure 3 A partial cross-sectional perspective view.

[0022] Figure 5 It is shown Figure 2 A cross-sectional view of a portion of the electronic control unit supported by a hydraulic valve block.

[0023] Figure description markings

[0024] 101: Brake drive unit; 110: Electronic control unit

[0025] 120: Hydraulic valve block; 129: Discharge channel

[0026] 130: Motor; 150: Mounting bracket

[0027] 160: Input lever; 300: Electrical equipment housing

[0028] 340: Vent 400: Filter

[0029] 830: Main sealing component; 840: Discharge sealing component Detailed Implementation

[0030] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings to facilitate implementation by those skilled in the art. The present invention can be implemented in various different ways and is not limited to the embodiments described herein.

[0031] It should be noted that the accompanying drawings are schematic only and not to scale. To make the drawings clearer and simpler, the relative dimensions and ratios of parts in the drawings have been enlarged or reduced, and these dimensions are merely exemplary and not limiting. The same reference numerals are used to indicate similar features for the same structures, elements, or components appearing in more than two drawings.

[0032] The embodiments of the present invention specifically demonstrate the ideal embodiments of the invention. As a result, various variations of the illustrations can be anticipated. Therefore, the embodiments are not limited to the specific morphology of the illustrated region, and may include, for example, morphological variations by manufacturing.

[0033] Furthermore, unless otherwise defined, all technical and scientific terms used in this specification have the meanings commonly understood by one of ordinary skill in the art to which this invention pertains. All terms used in this specification have been chosen for the purpose of more clearly describing the invention and are not intended to limit the scope of the claims according to the invention.

[0034] Furthermore, the terms "comprising," "possessing," and "having" as used in this specification should be understood as open-ended terms that include the possibility of other embodiments, unless otherwise stated in the statement or text containing such terms.

[0035] Furthermore, unless otherwise stated, the singular expressions described in this specification may include plural meanings, and this part also applies to the singular expressions recited in the claims.

[0036] Below, refer to Figures 1 to 5 To illustrate a brake drive device 101 according to an embodiment of the present invention.

[0037] The brake drive device 101 can convert the force applied to the brake pedal into a predetermined braking pressure required for braking and provide it to the vehicle to brake the vehicle.

[0038] Specifically, such as Figure 1 and Figure 2 As shown, the brake drive device 101 includes an electronic control unit (ECU) 110, a hydraulic valve block 120, and a motor 130.

[0039] In addition, in the brake drive unit 101, the mounting bracket 150 is supported by the vehicle, and the brake pedal is mounted on the input lever 160, so the brake drive unit 101 can receive the pedal force from the driver.

[0040] The hydraulic valve block 120 may contain a valve for controlling the flow of brake fluid, and form a flow channel controlled by the valve. The valve controls the supply of brake fluid through the flow channel. Specifically, the valve located inside the hydraulic valve block 120 can be operated according to an electrical signal input from the electronic control device 110 (described later), thereby controlling the flow of brake fluid.

[0041] Additionally, in one embodiment of the invention, a vent passage 129 for discharging air to the outside may be formed in the hydraulic valve block 120. Figure 5 (as shown in the image).

[0042] The electronic control device 110 can receive sensor information capable of detecting pedal force or pedal displacement, etc. The electronic control device 110 may include: a printed circuit board (PCB) that generates electrical signals for controlling the valve built into the hydraulic valve block 120 and the motor 130 (described later); an electrical equipment housing 300, the PCB being housed within its internal space; and a filter 400 attached to the electrical equipment housing 300. Furthermore, the electronic control device 110 can be supported on one side of the hydraulic valve block 120.

[0043] like Figures 3 to 5 As shown, the electrical equipment housing 300 may have a vent 340 that opens toward the discharge passage 129 of the hydraulic valve block 120 and connects to the internal space.

[0044] For reference only. Figure 3 It shows Figure 2 The region represented by F3 in the middle, Figure 4 By cutting Figure 3 The internal structure of the electrical appliance housing 300 is shown as a part of it. Furthermore, Figure 5 A portion of the electronic control unit 110, supported by the hydraulic valve block 120, is shown.

[0045] The filter 400 can be attached to the electrical appliance housing 300 and block the vent 340 in a manner that allows air to pass through. For example, the filter 400 can be a membrane filter. A membrane filter 400 is a permeable filter that allows air to pass through.

[0046] In addition, the filter 400 can be attached to the electrical equipment housing 300 by various means such as adhesives.

[0047] The filter 400 configured in this way can connect the interior of the electrical equipment housing 300 to the exterior through the discharge channel 129 of the hydraulic valve block 120, so as to suppress the internal pressure fluctuations caused by the operation of the electronic control device 110 and stably maintain the internal pressure balance.

[0048] In addition, when the internal pressure of the electrical equipment housing 300 cannot be balanced, the internal pressure may be excessively increased due to the heat generated by the valves controlling the hydraulic valve block 120 and the printed circuit board of the electronic control device 110 of the motor 130 (described later). As a result, the printed circuit board of the electronic control device 110 may be damaged or have a reduced lifespan.

[0049] The discharge port sealing member 840 can be formed to seal the space between the hydraulic valve block 120 and the electronic control device 110, and surround the discharge passage 129, the vent 340 and the filter 400.

[0050] Thus, the discharge port sealing member 840 can protect the filter 400 and prevent the discharge channel 129 from becoming blocked.

[0051] For example, the discharge port sealing member 840 can not only prevent air discharged through the vent 340 of the electrical equipment housing 300 from leaking to other parts as it flows through the filter 400 to the discharge channel 129 of the hydraulic valve block 120, but also prevent air, moisture, oil, dust or foreign matter from other parts from adhering to the filter 400 and contaminating the filter 400, blocking the discharge channel 129 or allowing foreign matter to flow into the interior of the hydraulic valve block 120.

[0052] The main sealing member 830 can seal the space between the hydraulic valve block 120 and the electronic control device 110, and is formed along the edge of the electrical equipment housing 300 facing the hydraulic valve block 120.

[0053] As described above, the main sealing member 830 can prevent moisture, oil, dust or foreign matter from flowing into the electronic control device 110 or the hydraulic valve block 120 by sealing one side of the electrical equipment housing 300 connected to the hydraulic valve block 120.

[0054] The motor 130 can be supported on the other side of the hydraulic valve block 120. Furthermore, the motor 130 can be controlled by signals received from the electronic control unit 110. Specifically, the motor 130 can be supported on the side opposite to the side of the hydraulic valve block 120 facing the electronic control unit 110.

[0055] According to an embodiment of the present invention, the brake drive device 101 can stably maintain the balance of internal pressure through the construction described above.

[0056] Specifically, according to an embodiment of the present invention, the brake drive device 101 can connect the inside of the electronic control device 110 to the outside, so as to suppress the internal pressure fluctuations during the operation of the electronic control device 110 and stably maintain the internal pressure balance.

[0057] That is, by maintaining the balance of the internal pressure of the electronic control device 110, it is possible to prevent the internal pressure of the electronic control device 110 from rising excessively due to the heat generated by the printed circuit board of the electronic control device 110 controlling the valves of the motor 130 and the hydraulic valve block 120, thereby preventing damage to the printed circuit board or a reduction in its lifespan.

[0058] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, those skilled in the art should understand that the present invention can be implemented in other specific ways without changing the technical concept or essential technical features.

[0059] Therefore, the embodiments described above should be understood as exemplary in all respects and not limiting. The scope of the invention and the detailed description above will be indicated by the appended claims, and should be interpreted as including the meaning and scope of the claims and all modifications or variations derived from their equivalents within the scope of the invention.

Claims

1. A brake drive device, comprising: The hydraulic valve block has an exhaust channel for discharging air to the outside; An electronic control device is supported on one side of the hydraulic valve block and includes an electrical housing and a filter. The electrical housing has a vent hole that opens toward the discharge channel of the hydraulic valve block and connects to the internal space. The filter is attached to the electrical housing and completely covers the vent hole, and the filter is breathable. as well as A discharge port sealing member is used to seal the space between the hydraulic valve block and the electronic control device, and surrounds the discharge passage, the vent, and the filter. The air discharged through the vent of the electrical equipment housing flows through the filter to the discharge channel of the hydraulic valve block.

2. The brake drive device according to claim 1, wherein, The brake drive device further includes a main sealing member that seals the space between the hydraulic valve block and the electronic control device, and is formed along the edge of the surface of the electrical equipment housing facing the hydraulic valve block.

3. The brake drive device according to claim 1, wherein, The hydraulic valve block has a valve inside it for controlling the flow of brake fluid. The electronic control device further includes a printed circuit board housed in the internal space of the electrical equipment housing, which generates an electrical signal for controlling the valve of the hydraulic valve block.

4. The brake drive device according to claim 3, wherein, The brake drive device further includes a motor, which is supported on the other side of the hydraulic valve block and controlled by the electronic control device.

5. The brake drive device according to claim 1, wherein, The filter includes a membrane filter.

6. The brake drive device according to claim 2, wherein, The discharge port sealing component and the main sealing component are made of in-situ cured gaskets, i.e., CIPG.

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