Hydraulic control apparatus integrated with motor driving circuit unit
US6354674B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1999 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Dec 10, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/3481
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A hydraulic control apparatus integrated with motor circuit unit, in which waterproof for preventing liquid such as water from entering an electronic substrate or the like accommodated in a circuit unit housing can be efficiently performed. A hydraulic control apparatus is provided with a hydraulic unit for adjusting brake fluid pressure, and a motor driving circuit unit for actuating a motor for adjusting the brake fluid pressure and integrally assembled with the hydraulic unit. An ECU for controlling the brake fluid pressure is separately provided from the motor driving circuit unit. The motor driving circuit unit is provided with a circuit unit housing constructed by a case portion made of resin and a cover made of resin. The circuit unit housing is divided into an electronic substrate portion for accommodating an electronic substrate, and an operation portion for accommodating a solenoid and a pressure sensor by partition walls provided at the case portion and the cover. The cover is bonded with the case portion by vibrating welding so that the cover is integrated with the cover. As a result, it can prevent water from entering into the circuit unit housing. Particularly, the el…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.