Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
1999-10-18
2001-08-14
Gaffin, Jeffrey (Department: 2841)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S753000, C361S737000, C361S689000, C439S297000, C439S298000
Reexamination Certificate
active
06275385
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATION
The present application relates to and incorporates herein by reference Japanese Patent Application No. 10-361328 filed on Dec. 18, 1998.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electronic control device accommodating within a casing a printed circuit board mounted with a plurality of electronic parts, and to a jig device therefor. More particularly, the present invention relates to an electronic control device and a jig device
200
therefor which is useful for fixing a casing in a circuit operation checking process and the like.
2. Related Art
In an electronic control device, an enclosure type casing is used to accommodate therein a printed circuit board mounted with a plurality of electronic parts and to hold fixedly a casing connector near its opening. A checker connector of a checking apparatus is inserted from the opening of the casing into the casing connector to electrically connect an electronic control circuit on the printed circuit board to the checking apparatus, so that the operation of the electronic control circuit may be checked by the checking apparatus.
Specifically, as shown in
FIG. 8
, a casing
11
is generally shaped by molding and solidifying a molten metal in molding dies so that the casing
11
has an enclosure structure determined by the shape of the molding dies (not shown) and has a sufficient depth. Each of inner wall surfaces
11
b
of the casing
11
facing each other is shaped to have an inclination of a draw angle &thgr;, so that the casing
11
and the inner die may be separated from each other, for instance, the inner die is drawn from the casing
11
, after the molding process. When the casing
11
is
10
shaped by way of aluminum alloy die casting, for instance, it is required to maintain wall thickness of the casing
11
for minimizing voids and the like arising from molten metal flow in the casting process or for reducing weight. For this reason, each of outer wall surfaces
11
c
of the casing
11
is shaped to have the same draw angle &thgr;.
As shown in
FIG. 9
, an electronic circuit
15
including electronic parts
17
a
and
17
b
mounted on a printed circuit board
16
is accommodated within the casing
11
. The electronic control circuit
15
is connected to a casing connector
19
mounted on the printed circuit board
16
and positioned near an opening
11
a
of the casing
11
, so that the electronic circuit
15
accommodated within the casing
11
is checked in the following process by a checking apparatus
100
by the use of a jig device
200
which fixedly holds the casing
11
thereon.
The outer wall surface
11
c
of the casing
11
is first placed on a horizontal reference plane of the jig device
200
in such a manner that its opening
11
a
is directed to open in a lateral or horizontal direction. Under this condition, pins of the casing connector
19
of the printed circuit board
16
are directed upward and angularly deviates from the reference plane of the jig device
200
by the draw angle &thgr; of the inner wall surface
11
b
of the casing
11
(FIG.
8
). It is preferred that a checker connector
120
which mates with the casing connector
19
of the printed circuit board
16
at the side of the opening
11
a
is moved in parallel with the reference plane of the jig device
200
. Thus, the directions of mating between the casing connector
19
within the casing
11
and the checker connector
120
of the checking apparatus differ by the draw angle &thgr; of inclination of the inner wall surface
11
b
. As a result, the connectors
19
and
120
are disabled to be inserted each other smoothly. Even if those are forced to be inserted, unnecessary stress exerts on the connectors
19
and
120
or on the printed circuit board
16
. Thus, it is likely to result in that the connectors
19
and
120
or the printed circuit board
16
will be damaged.
SUMMARY OF THE INVENTION
The present invention has been made to overcome the above drawbacks, and has an object to provide an electronic control device and a jig device therefor which are capable of mating a casing connector and a checker connector in the same direction.
According to the present invention, a casing inclination part is provided on either a casing or a jig device of a checking apparatus. The casing inclination part is for compensating an inclination of the casing wall. The casing inclination part maybe a protrusion formed on an outer wall surface of the casing. Alternatively, it may be a protrusion or recess formed on the jig device. The protrusion or the recess has a thickness or depth which corresponds to the inclination of the casing wall. Thus, a casing connector of an electronic control circuit accommodated within the casing is mated with a checker connector in the same direction.
REFERENCES:
patent: 5882220 (1999-05-01), Horii et al.
patent: 6023411 (2000-02-01), Howell et al.
patent: 6065679 (2000-05-01), Levie et al.
patent: 6101087 (2000-08-01), Sutton et al.
patent: 6115247 (2000-09-01), Helot
patent: 6220883 (2001-04-01), Helot et al.
U.S. application Ser. No. 09/346,687 of Matsui et al, filed Jul. 2, 1999.
Fujimura Toshio
Sahara Fujio
Shigemura Manabu
Denso Corporation
Dinh Tuan
Gaffin Jeffrey
Nixon & Vanderhye PC
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