Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – Within distinct housing spaced from panel circuit arrangement
Reexamination Certificate
2000-03-09
2001-05-29
Sircus, Brian (Department: 2839)
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
Within distinct housing spaced from panel circuit arrangement
C439S949000
Reexamination Certificate
active
06238221
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a circuit connection structure for a junction block in which electronic components constituting an electronic control unit are installed.
2. Description of the Related Art
Conventionally, in a junction block-related product having installed therein various types of electronic components, normally used as a circuit connection structure for connecting a cabling conductive portion within a junction block with a circuit conductive portion on a printed-wiring board
5
on which electronic components constituting an electronic control unit are mounted is a method for connecting the cabling conductive portion with the circuit conductive portion on the printed-wiring board comprising the steps of mounting a connector
3
in which a junction terminal
1
is mounted in a housing
2
on a printed-wiring board
5
with soldering
4
or the like, and connecting a bus bar
6
constituting the wiring conductive portion within the junction block with the junction terminal
1
.
For instance, such a method is disclosed in JP-A-9-9457.
According to the aforesaid conventional circuit connection structure for a junction block, however, a space greater than an actual connecting portion needs to be secured due to the existence of the housing
2
retaining the junction terminal
1
, and a problem results therefrom that the enlargement of the junction block is entailed.
In addition, thermal stress and stress due to vibration is applied differently to the soldered portion
4
where the junction terminal
1
and the printed-wiring board
5
are soldered to each other for every mode of utilizing a junction block having various types electronic control units installed therein, and therefore, a reliability confirmation has been needed.
SUMMARY OF THE INVENTION
To cope with this, an object of the present invention is to provide a circuit connection structure for a junction block that is intended to reduce a space required for circuit connection and which can improve the reliability in such a circuit connection.
According to a first aspect of the invention, there is provided a circuit connection structure for a junction block for connecting a circuit conductive portion of a printed-wiring board with a cabling conductive portion within the junction block, characterized in that, a slit is formed in a substrate main body of the printed-wiring board, land portions being provided on both sides of said slit, at least one of the land portions being connected to the circuit conductive portion, an electric wire disposed to extend between the land portions being soldered to the land portions, and in that a pressure connecting terminal member provided on the cabling conductive portion and having a biting connection groove for the electric wire bites on the electric wire for connection therewith through the slit.
According to a second aspect of the invention, the electric wire is a single-core wire having a core portion comprising a single conductive wire.
According to a third aspect of the invention, a plurality of the land portions are provided on each side of the slit in such a manner as to confront each other across the slit, that the electric wire is soldered, respectively, to the plurality of the confronting land portions on each side of the slit, the electric wire each being disposed to extend between the confronting land portions, and that a plurality of the pressure connecting terminal portions are provided for biting on the respective electric wires for connection therewith.
According to a fourth aspect of the invention, a plurality of the slits are formed in the substrate main body, that the land portions are provided on both sides of each of the plurality of the slits and the electric wire is soldered to the land portions on the both sides of each of the plurality of the slits, the electric wire being disposed to extend between the land portions, and that the pressure connecting terminal member is provided for the respective electric wires for bite connecting therewith.
REFERENCES:
patent: 4820192 (1989-04-01), Denkmann et al.
patent: 5091826 (1992-02-01), Arnett et al.
patent: 5484186 (1996-01-01), Van Order et al.
patent: 5764487 (1998-06-01), Natsume
patent: 5888088 (1999-03-01), Kobayashi et al.
patent: 0 572 052 A1 (1993-12-01), None
patent: 5-300627 (1993-11-01), None
patent: 9-9457 (1997-01-01), None
patent: 9-009457 (1997-01-01), None
patent: 9-312919 (1997-12-01), None
Ikeda Keizo
Isshiki Yoshihiro
Harness System Technologies Research Ltd.
Oliff & Berridg,e PLC
Sircus Brian
Webb Brian S.
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