Simplified connecting-type electric junction box with wiring harness

• US 5,755,579 A
• Filed: 12/20/1995
• Issued: 05/26/1998
• Est. Priority Date: 12/28/1994
• Status: Expired due to Term

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Saimoto, Tetsuro, Yanase, Takeshi
• Primary Examiner(s): Abrams, Neil
• Assistant Examiner(s): STANDIG, BARRY
• Application Number:
  US08/575,327
• Time in Patent Office: 888 Days
• Field of Search: 439/76.2, 439/949, 439/621, 439/212, 439/361, 439/307, 439/214, 174/68.2, 174/70 B, 174/71 B, 174/72 B, 174/99 B
• US Class Current: 439/76.2
• CPC Class Codes: H01R 31/00 Coupling parts supported only by co-operation with counterpart
• CPC Class Codes: H02G 3/16 structurally associated with support for line-connecting terminals within the box
• CPC Class Codes: Y10S 439/949 Junction box with busbar for plug-socket type interconnection with receptacle

Abstract

An electric junction box includes a main case having a component connector, an under case having a harness connector, and a longitudinal busbar, which are mounted by making a board surface of the insulated substrate and the longitudinal busbar cross at right angles, and in which the longitudinal busbar is extended to the connector through junction terminals accommodated in the terminal-accommodating cavity. An under case, which is divided into a plurality of sub-cases corresponding to sub-wiring harnesses, is provided with an insulated supporting board for supporting a plurality of junction terminals and a longitudinal busbar. The described arrangement enables each of the separated insulated supporting boards to be fixedly installed in the main case by means of known ways, such as welding, or the like.

Claims

1. An electric junction box comprising:

a main case;

an under case fitted in said main case;

a circuit component composed of an insulated substrate and a plurality of longitudinal busbars upstanding from a surface of said insulated substrate, said circuit component being received in said main case and said under case;

component connector means for connecting electrical components provided on an outer wall of said main case;

wiring harness connector means for connecting a plurality of groupings of external wiring harnesses provided on an outer wall of said under case, circuits extending between said component connector and said wiring harness connector through junction terminals accommodated in terminal-accommodating cavities in said component connector or a busbar, and said under case being divided into a plurality of sub-cases operative to receive respective of said groupings of said wiring harnesses; and

a separated insulated supporting board associated with each of said sub-cases for supporting a plurality of said junction terminals and longitudinal busbars operative in each of said separated sub-cases, and each of said separated insulated supporting boards being fixed to said main case.

2. An electric junction box according to claim 1, further comprising a joint portion for connecting adjacent insulated supporting boards at selected locations therealong, and a notch portion for avoiding an interference with said joint portion provided on a periphery wall of the corresponding sub-case.

3. An electric junction box according to claim 1 or claim 2, further comprising pilot holes for fitting said separated insulated supporting boards onto said main case, a plurality of welding bosses provided on said main case, and a plurality of boss holes corresponding to said plurality of welding bosses provided in said separated insulated supporting board, at least two boss holes of said plurality of boss holes in each of said separated insulated supporting boards being for accurately locating said welding bosses.

4. An electric junction box according to claim 1 or claim 2, further comprising a guide wall on each of said sub-cases having a height higher than that of a periphery wall portion thereof said guide wall being operative to engage a wall of said main case of said main case to facilitate accurate location of said sub-case with respect to said man case.