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Title:
CONTROL DEVICE GROUNDED VIA CASING
Document Type and Number:
Japanese Patent JP2014099553
Kind Code:
A
Abstract:

To provide a control device that has an improved resistance to effects of external noise.

The control device includes a circuit board (100) mounted with electrical components for controlling a controlled object, and a casing (104a, 104b) directly or indirectly electrically connected to a ground of a power supply. The circuit board has a first ground pattern (148, 249) for electrically connecting grounds of the electrical components on the circuit board to the casing. The first ground pattern is electrically connected to a part of an inner surface of the casing. The part of the inner surface is a part having the lowest resistance value of a current path to a central part of a mounting surface (204) of the casing to a conductive external structure.


Inventors:
KURAUCHI JUNJI
SHINTO MASATO
ENDO TAKASHI
Application Number:
JP2012000251361
Publication Date:
May 29, 2014
Filing Date:
November 15, 2012
Export Citation:
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Assignee:
HONDA MOTOR CO LTD
International Classes:
H05K9/00
Domestic Patent References:
JP2011258886A2011-12-22
JPH0722807A1995-01-24
JPS6175599A1986-04-17
Attorney, Agent or Firm:
特許業務法人OFH特許事務所