Electrical connectors – With guiding means for mating of coupling part – Rodlike guide member extending in coupling direction or...
Reexamination Certificate
2002-11-13
2004-06-29
Prasad, Chandrika (Department: 2839)
Electrical connectors
With guiding means for mating of coupling part
Rodlike guide member extending in coupling direction or...
C439S076200
Reexamination Certificate
active
06755677
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATION
This application is based on and incorporates herein by reference Japanese Patent Application No. 2002-41333 filed on Feb. 19, 2002.
FILED OF THE INVENTION
The present invention relates to an electronic circuit unit, which may be equipped in an engine compartment and used for controlling an engine and so on, including electric connectors in a body, and a manufacturing method therefor.
BACKGROUND OF THE INVENTION
Recently, since an electronic circuit unit for an engine has many functions, electric connectors for external devices in the electronic circuit unit have increased. Since the electronic circuit unit is installed in the engine compartment of a car, the size of the electronic circuit unit should be made small. Therefore, the electric connectors are formed inside the electronic circuit unit.
It is proposed as shown in
FIG. 5
that each group of connector pins
5
for an electrical connection with an external device are insert-molded in a normal-type connector housing
7
. Each normal-type connector housing
7
is fixed in each opening
8
formed in a case
2
by an adhesive. By fitting a projection
10
formed in each opening
8
to a recess
11
formed in the circumference of the normal-type connector housing
7
, the normal-type connector housing
7
is fixed to the case
2
. The end of each connector pin
5
on the side of the printed wiring board is inserted in a through hole
4
a
and fixed by a solder
4
. The printed wiring board
1
is sandwiched by the case
2
and a base
3
, and they are fixed by screws
6
. That is, the normal-type connector housings
7
, which are respectively installed groups of connector pins, and the case
2
are formed in a single body, and the united single body is installed to the printed wiring board in a moss.
However, when there are many electric connectors, it is difficult to install the united single body to the printed wiring board so that each group of the connector pins
5
correspond to the respective through holes
4
a
. This is because the normal-type connector housing
7
is not always fixed in the case
2
correctly and positions of the ends of the connector pins
5
do not correspond to the positions of the through holes
4
a
in setting of the united single body.
The connector pins
5
can be simultaneously inserted in the through holes
4
a
when the diameters of the through holes are made larger. However, it is difficult to fill the through holes with the solder
4
.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an electronic circuit unit having an improved connector structure and a manufacturing method therefor.
An electronic circuit unit according to the invention has at least one penetration-type connector housing, which can be pierced by a group of connector pins with clearances against inner surface. Moreover, in correspondence with each penetration-type connector housing, a plate to support a group of connector pins is formed. Therefore, in a manufacturing process to set many groups of the connector pins to a printed wiring board, the method is easy and secure.
REFERENCES:
patent: 6325642 (2001-12-01), Asao
patent: A-9-180831 (1997-11-01), None
patent: A-10-223335 (1998-08-01), None
Denso Corporation
Prasad Chandrika
LandOfFree
Electronic circuit unit having a penetration-type connector... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electronic circuit unit having a penetration-type connector..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic circuit unit having a penetration-type connector... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3361709