# US 2013/0153799 A1 · Hydraulic pressure control device

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- Number: US 2013/0153799 A1
- Document ID: US20130153799A1
- Status: Published application
- Kind: A1
- Application number: 13/713,451
- Filed: 2012-12-13
- Published: 2013-06-20
- Earliest claimed: 2011-12-14
- Assignees: Denso Corporation; Advics Co., Ltd.
- Inventors: Masato OGAWA; Ayumi YAMAMURA; Masayuki HIJIKATA; Kouji YANAI
- Web page: https://patentgrep.com/patent/US20130153799A1

## CPC

- F16K 31/046: {with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor (F16K31/041 takes precedence)}
- B60T 8/368: {combined with other mechanical components, e.g. pump units, master cylinders}
- F16K 27/029: {Electromagnetically actuated valves}
- F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)}
- B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES

## Abstract

A hydraulic pressure control device includes: a hydraulic pressure unit, in which a solenoid valve for hydraulic pressure control is assembled with a hydraulic pressure block; and an electronic control unit, which includes a circuit board having a drive control circuit of the solenoid valve and stored inside a resin case, wherein a solenoid coil is fit onto the main body of the solenoid valve fixed to the hydraulic pressure block of hydraulic pressure unit, and wherein the solenoid coil is elastically pressed against and fixed to the hydraulic pressure block by a coil pressing arm integrally formed with the resin case.

## Claims

### Claim 1

A hydraulic pressure control device comprising:
a hydraulic pressure unit, in which a solenoid valve for hydraulic pressure control is assembled with a hydraulic pressure block; and
an electronic control unit, which includes a circuit board having a drive control circuit of the solenoid valve and stored inside a resin case,
wherein a solenoid coil is fit onto the main body of the solenoid valve fixed to the hydraulic pressure block of hydraulic pressure unit, and
wherein the solenoid coil is elastically pressed against and fixed to the hydraulic pressure block by a coil pressing arm integrally formed with the resin case.

### Claim 2 (depends on 1)

The hydraulic pressure control device according to claim 1,
wherein at least one of the thickness and width of the coil pressing arm is reduced from the root side of the arm connected to the resin case toward the front end side.

### Claim 3 (depends on 1)

The hydraulic pressure control device according to claim 1,
wherein the front end of the coil pressing arm extends over the center of the coil in a direction so that a distance from the arm connection point of the case to the front end of the coil pressing arm increases.

### Claim 4 (depends on 1)

The hydraulic pressure control device according to claim 1,
wherein a yoke to be integrated with the solenoid coil is configured by end walls facing both ends of the coil and an intermediate wall whose both ends are connected to sides of the two end walls so that the yoke has a U-shape in a side view, and
wherein the coil pressing arm is deflected to the intermediate wall of the yoke, and the side wall of the yoke is pressed by the front end portion of the coil pressing arm in the vicinity of the intermediate wall of the yoke rather than the coil center.

### Claim 5 (depends on 1)

The hydraulic pressure control device according to claim 1,
wherein a protrusion is provided at the front end of the coil pressing arm so that the solenoid coil is pressed by the protrusion.

### Claim 6 (depends on 1)

The hydraulic pressure control device according to claim 1,
wherein the coil pressing arm is formed along at least part of the outer circumference of the solenoid coil, as viewed from an axially direction of the coil.

### Claim 7 (depends on 1)

The hydraulic pressure control device according to claim 1,
wherein at least one coil pressing arm is provided for respective coils