Electrical junction box with electrical components mounted to conductive metal plates across a gap

• US 9,385,512 B2
• Filed: 10/20/2011
• Issued: 07/05/2016
• Est. Priority Date: 10/20/2010
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Ooishi, Manabu, Sugiura, Maki, Yamamoto, Kazuhiro, Ogawa, Kenji
• Primary Examiner(s): Smith, Courtney
• Assistant Examiner(s): Ervin, Jessey R
• Application Number:
  US13/878,460
• Publication Number:
  US 20130194725A1
• Time in Patent Office: 1,720 Days
• Field of Search: 174/250, 174/255, 174/520, 361/622, 361/795, 361/600, 361/752, 361/761, 439/76.2
• US Class Current: 1/1
• CPC Class Codes: H02B 1/012 Details of mechanical connections
• CPC Class Codes: H05K 1/0203 Cooling of mounted components H05K1/0272 takes precedence
• CPC Class Codes: H05K 1/056 the metal substrate being covered by an organic insulating layer
• CPC Class Codes: H05K 2201/09663 Divided layout, i.e. conductors divided in two or more parts
• CPC Class Codes: H05K 3/3447 Lead-in-hole components H05K3/3415 takes precedence
• CPC Class Codes: H05K 3/44 Manufacturing insulated metal core circuits or other insulated electrically conductive core circuits H05K3/0058, H05K3/4608, and H05K3/4641 take precedence
• CPC Class Codes: H05K 7/026 Multiple connections subassemblies

Abstract

An electrical junction box for distributing electric power in a vehicle includes a metal core substrate provided with a core metal assembly having two core metal plates arranged with a gap, an insulating layer embedded in the gap and covering surfaces of the core metal plates to integrate the core metal plates, and electronic components. Electric power from a battery is inputted into the core metal plate, and electric power from an alternator is inputted into the core metal plate. The electronic components are provided with a plurality of attaching portions soldered or screwed to the metal core substrate. At least one of the attaching portions is attached to the core metal plate, and at least one of the attaching portions is attached to the core metal plate.

Claims

1. An electrical junction box for respectively distributing inputted electric power from power sources of a plurality of systems to a plurality of core metal plates comprising:

a metal core substrate provided with a rectangular shaped core metal assembly having the core metal plates arranged with slit-shaped gaps connected end to end to one another across the substrate, and an insulating layer embedded in the gaps and covering surfaces of the core metal plates to integrate the core metal plates; and

a plurality of electronic components mounted on the metal core substrate, including a connector block mounted along one longitudinal edge of the substrate and a fuse block mounted along an opposite longitudinal edge of the substrate,

wherein the electronic components are provided with a plurality of attaching portions soldered or screwed to the metal core substrate,

wherein at least one of the attaching portions of the electronic components is a pair of screw fixing portions arranged on a housing which is made of synthetic resin and constitutes the electronic components,

wherein the pair of screw fixing portions are screwed to one and an other of the plurality of core metal plates adjacent to each other at opposite ends of the fuse block with the gap therebetween, respectively, and

wherein the slit-shaped gaps include a first straight portion extending from the connector block longitudinally offset from the fuse block, and a second straight portion extending from fuse block.

2. The electrical junction box as claimed in claim 1,

wherein one of the core metal plates adjacent to each other with the gap therebetween is provided with a convex portion projected toward the other core metal plate, and the other core metal plate is provided with a concave portion where the convex portion is positioned.

3. The electrical junction box as claimed in claim 1,

wherein one of the core metal plates adjacent to each other with the gap therebetween is provided with a convex projected toward the other core metal plate, and the other core metal plate is provided with a concave where the convex is positioned.