Electronic control unit

• US 20070072452A1
• Filed: 09/25/2006
• Published: 03/29/2007
• Est. Priority Date: 09/26/2005
• Status: Active Grant

• Current Assignee: Jtekt Corporation (Toyota Motor Corporation)
• Original Assignee: Jtekt Corporation (Toyota Motor Corporation)
• Inventors: Inagaki, Tatsuya, Kohno, Toshio
• Granted Patent: US 7,413,445 B2
• Time in Patent Office: Days
• US Class Current: 439/76.200
• CPC Class Codes: B60R 16/0239 Electronic boxes
• CPC Class Codes: H01R 13/5202 Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
• CPC Class Codes: H01R 13/521 Sealing between contact members and housing, e.g. sealing insert
• CPC Class Codes: H05K 5/0043 comprising a frame housing mating with two lids wherein the PCB is flat mounted on the frame housing
• CPC Class Codes: H05K 5/069 Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
• CPC Class Codes: Y10S 439/936 Potting material or coating, e.g. grease, insulative coating, sealant or, adhesive

Abstract

An electronic control unit includes an electronic circuit substrate and a casing that accommodates the electronic circuit substrate. A plurality of electronic components are mounted on the electronic circuit substrate. A plurality of connector terminals extend through a side wall of the casing for electrically connecting the electronic circuit substrate to external wires. A retainer portion capable of retaining liquid seal agent is arranged at an inner side of the wall through which the connector terminals extend.

Claims

1. An electronic control unit comprising:

an electronic circuit substrate;

a casing that accommodates the electronic circuit substrate and includes a wall;

a connector terminal that extends through the wall of the casing, the connector terminal being for electrically connecting the electronic circuit substrate to an external wire;

a seal agent that seals the space between the wall through which the connector terminal extends and the connector terminal in a liquid-tight manner; and

a retainer portion that is provided at an inner side of the wall through which the connector terminal extends and retains the seal agent.

2. The electronic control unit according to claim 1, wherein the casing has an opening, and wherein the retainer portion has an opening facing the opening of the casing.

3. The electronic control unit according to claim 1, wherein the retainer portion is arranged to prevent an inner surface of the retainer portion from contacting the connector terminal.

4. The electronic control unit according to claim 1, wherein the opening of the retainer portion faces in the direction in which the connector terminal extends through the wall of the casing.

5. The electronic control unit according to claim 2, wherein the retainer portion is arranged to prevent an inner surface of the retainer portion from contacting the connector terminal.