Electronic control device

Patent metadata

Field	Value
Publication number	US-2018192526-A1
Application number	US-201615740216-A
Country	US
Kind code	A1
Filing date	Jun 30, 2016
Priority date	Jun 30, 2015
Publication date	Jul 5, 2018
Grant date	—

Abstract

Electronic component unit ( 20 ) is received in inside of housing ( 1 ) prepared by joining base ( 2 ) and cover ( 3 ). Sealing groove ( 24 ) for sealing material ( 24 a ) is formed on joining surface ( 21 ) of base ( 2 ). Protruding rib ( 35 ) fittable into seal groove ( 24 ) is formed on joining surface ( 33 ) of cover ( 3 ). Furthermore, spring hook portion ( 4 ) is provided to be positioned outside of the joining surfaces ( 21, 33 ) on an outer peripheral side of housing ( 1 ). Spring hook portion ( 4 ) is structured to include flexible portion ( 41 ) that extends to span between outer peripheral surfaces of base ( 2 ) and cover ( 3 ) and that is formed into a beam supported at only one end thereof on the outer peripheral surface of cover ( 3 ), and engaging portion ( 40 ) that is formed on a tip end side of flexible portion ( 41 ) and is engaged with the outer peripheral surface of base ( 2 ).

First claim

1 . An electronic control device, comprising:
a housing having at least first and second housing members that are joined together and that respectively have joining surfaces sealed; a sealing groove that is formed on the joining surface of one of the first and second housing members and that is filled with a sealing material; a protruding rib that is formed on the joining surface of another of the first and second housing members and that is fitted into the sealing groove; a spring hook portion that is positioned outside of the joining surfaces on an outer peripheral side of the housing; and an electronic component unit that is received in a space inside of the housing, wherein the spring hook portion comprises:
a flexible portion that extends to span between outer peripheral surfaces of the first and second housing members and that is formed into a beam supported at only one end thereof on the outer peripheral surface of the first housing member; and
an engaging portion that is formed at a position of the flexible portion, the position being opposed to the outer peripheral surface of the second housing member, the engaging portion being engaged with the outer peripheral surface of the second housing member.

2 . The electronic control device as claimed in claim 1 , wherein the spring hook portion is formed at at least two positions that are outside of the joining surfaces and are opposed to each other.

3 . The electronic control device as claimed in claim 1 , wherein an outer peripheral surface recessed portion that is recessed in an engagement direction of the engaging portion is formed on the outer peripheral surface of the second housing member at a position opposed to the engaging portion,
wherein the engaging portion is formed with an engaging projection portion that is projected in the engagement direction of the engaging portion at a position opposed to the outer peripheral surface recessed portion, and wherein the engaging projection portion is fitted into the outer peripheral surface recessed portion to achieve an engagement.

4 . The electronic control device as claimed in claim 1 , wherein an outer peripheral surface projection portion that is projected in a direction opposite to an engaging direction of the engaging portion is formed on the outer peripheral surface of the second housing member at a position opposed to the engaging portion,
wherein the engaging portion is formed with an engaging recessed portion that is recessed in the direction opposite to the engaging direction of the engaging portion, at a position opposed to the outer peripheral surface projection portion, and wherein the engaging recessed portion receives the outer peripheral surface projection portion to achieve an engagement.

5 . The electronic control device as claimed in claim 1 , wherein the scaling groove is formed on an inner side of the housing on the joining surface of the one of the first and second housing members, and
the protruding rib is formed on an inner side of the housing on the joining surface of the another of the first and second housing members.

6 . The electronic control device as claimed in claim 1 , wherein the electronic control device further comprises:
first and second flange portions that are respectively projected at positions outside of the joining surfaces on outer peripheral surfaces of the first and second housing members and that are stacked by joining the first and second housing members; and first and second through holes that are respectively formed through the first and second flange portions and are concentrically positioned in a stacked position, wherein a hole wall of one of the first and second through holes on a side of a stacking direction is projected to have a tubular shape in the stacking direction by a projection length equivalent to a through hole length of another of the first and second through holes and is fitted into the another, wherein the first and second flange portions are fastened together by a screwing means, and wherein the screwing means comprises: an external screw portion having a screw shaft that has a bar shape and that passes through one of the first and second through holes; and an internal screw portion that is screwed on one end side of the screw shaft that is projected by passing through the one of the first and second through holes.

7 . The electronic control device as claimed in claim 6 , wherein the first and second through holes are formed at at least two opposing positions outside of the joining surfaces.

8 . The electronic control device as claimed in claim 1 , wherein the first housing member and the spring hook portion are monolithically formed by using a resin material.

Assignees

• Meidensha Electric Mfg Co Ltd
• Meidensha Electric Mfg Co Ltd

Inventors

• Suzuki Tetsuji
• Hara Shoji
• Umebachi Masako

Classifications

• H05K5/063

  sealed by a labyrinth structure provided at the joining parts · CPC title

• H05K5/069

  Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft · CPC title

• H05K5/062

  sealed by a material injected between a non-removable cover and a body, e.g. hardening in situ · CPC title

• H05K5/03

  Covers · CPC title

• H05K7/20418

  the radiating structures being additional and fastened onto the housing · CPC title