Patent ID: 11878673
Assignee: HITACHI ASTEMO, LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F  H | IPC B  F

Claim 4:
5. A brake control device comprising:
a housing, and an electromagnetic valve fixed to the housing,
the housing comprising a fluid channel,
the electromagnetic valve comprising:
a bobbin made of resin;
a coil wound around an outer periphery of the bobbin;
a cylindrical member in contact with an inner side of the bobbin;
a movable member disposed inside the cylindrical member and moved in a winding axis direction of the coil by energization of the coil, and
a valve portion configured to switch between communication states of the fluid channel in response to the motion of the movable member, wherein
the bobbin has an inner periphery that is retained in contact with an outer periphery of the cylindrical member,
the bobbin includes a protruding portion in the inner periphery, and the protruding portion is in contact with the outer periphery of the cylindrical member,
the protruding portion is provided in part of the bobbin in a circumferential direction,
the protruding portion is reduced in circumferential width inwards from an inner periphery of the bobbin, and
the bobbin is in contact with the movable member with the protruding portion intervening therebetween to increase heat conduction from the bobbin to the movable member.