Title:
CIRCUIT FOR SUPPRESSING SURGE NOISE OF BATTERY RELAY
Document Type and Number:
Japanese Patent JP2018152212
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To protect a load in a circuit of an on-vehicle electrical component or the like by suppressing surge noise generated from an electromagnetic coil during off of a battery relay.SOLUTION: A circuit for suppressing surge noise of a battery circuit is provided which comprises a normally open battery relay 4 turned ON by being energized to an electromagnetic coil 5 via a signal line 6 during ON of a battery switch 7 and which suppresses surge noise generated from the electromagnetic coil 5 of the battery relay 4 during OFF of the battery switch 7. A normally open sub-relay 9 is interposed in the downstream side close to the electromagnetic coil 5 in the signal line 6 connected to the electromagnetic coil 5 of the battery relay 4. The signal line 11 for energizing the electromagnetic coil 10 of the sub-relay 9 is provided with the battery switch 7.SELECTED DRAWING: Figure 1
Inventors:
SOMEYA YASUSHI
YAMAZAKI HODAKA
HASEGAWA KODAI
YAMAZAKI HODAKA
HASEGAWA KODAI
Application Number:
JP2017046901A
Publication Date:
September 27, 2018
Filing Date:
March 13, 2017
Export Citation:
Assignee:
HINO MOTORS LTD
International Classes:
H01H47/00; B60R16/02; H01H47/22
Domestic Patent References:
| JP2007062634A | 2007-03-15 |
Attorney, Agent or Firm:
Yamada Patent Office