Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
1999-12-29
2001-11-20
Patel, Tulsidas (Department: 2839)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C439S382000
Reexamination Certificate
active
06320756
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to an electronic device mounting structure for mounting electronic device such as a TV tuner and others on a motherboard.
2. Description of Related Art
FIG. 4
shows a conventional electronic device mounting structure, in which a electronic device
31
, such as a TV tuner and others having an unillustrated electronic circuit in a metal casing
31
a
, have a plurality of terminals
31
b
and a connector
31
c
mounted on the side face, and mounting legs
31
d
protruding on the underside of the metal casing
31
a
. The electronic device
31
are mounted on a motherboard
32
fixedly attached within an unillustrated TV receiver. The motherboard
32
is provided with unillustrated holes in which the terminals
31
b
and the mounting legs
31
d
of the electronic device
31
are inserted, and also conductors for wiring not depicted are formed.
The electronic device
31
mounted on the motherboard
32
is fixedly attached on the motherboard
32
by means of the mounting legs
31
d
inserted in the holes, and also the terminal
31
c
inserted in a hole is connected to the conductor for wiring on the motherboard
32
.
The motherboard
32
mounted with the electronic device
31
is secured in a casing
33
of a TV receiver and others as shown in FIG.
5
.
In a conventional mounting structure of the electronic device
31
, the electronic device
31
is fixed on the motherboard
32
. Furthermore, the motherboard
32
is fixed on the casing
33
; and therefore, for example, if the casing
33
is used on a motor vehicle, the electronic device
31
is subjected to shock and vibration with the movement of the motor vehicle.
Therefore, the electronic components in the electronic device
31
are also subjected to vibration, whereby a spacing between the electronic components will be varied, resulting in a changed electric characteristic. Furthermore, in case the electronic device
31
is exposed to severe shocks, the mounting strength of the mounting legs
31
d
and the motherboard
32
will decrease, resulting in the occurrence of a relative displacement between the electronic device
31
and the motherboard
32
and accordingly in defective connection of wiring conductors between the terminal
31
c
and the motherboard
32
.
SUMMARY OF THE INVENTION
It is, therefore, an object of this invention to provide an electronic device mounting structure capable of absorbing external shocks and vibrations, to thereby prevent direct application of shocks and vibrations to the electronic device.
As a means to solve the above-described problem, the electronic device mounting structure of this invention is provided with a motherboard having a cutout section, a plate-like mounting member, and electronic device mounted on the mounting member; and the mounting member is arranged in the cutout section, a cushioning member is inserted between the motherboard and the mounting member, and then the mounting member is attached on the motherboard.
The mounting member of the electronic device mounting structure of this invention is formed of a printed circuit board.
In the electronic device mounting structure of this invention, the cutout section serves as a hole, in which the mounting member is arranged.
Furthermore, in the electronic device mounting structure of this invention, there are formed mutually facing recesses, one in the inner peripheral edge of the cutout section and the other in the outer peripheral edge of the mounting member. The cushioning member is made in the shape of an hourglass having large-diameter portions on both ends of a small-diameter portion. This cushioning member is used with the small-diameter portion fitted in between the mutually facing recesses.
The foregoing objects and other objects of this invention will become more apparent and understandable from the following detailed description thereof, when read in connection with the accompanying drawings.
REFERENCES:
patent: Re. 31114 (1982-12-01), Berg
patent: 4150420 (1979-04-01), Berg
patent: 5065279 (1991-11-01), Lazenby et al.
patent: 5527187 (1996-06-01), Jurasek et al.
patent: 5729433 (1998-03-01), Mok
patent: 5835358 (1998-11-01), Brakus
patent: 5857858 (1999-01-01), Gorowitz et al.
patent: 6043981 (2000-03-01), Markow et al.
patent: 6054676 (2000-04-01), Wall et al.
patent: 6058000 (2000-05-01), Koenck et al.
patent: 6093996 (2000-07-01), Daidai
patent: 6115259 (2000-09-01), Karner
patent: 5-315467 (1993-11-01), None
patent: 5-327272 (1993-12-01), None
patent: 7-86714 (1995-03-01), None
Alps Electric Co. ,Ltd.
Brinks Hofer Gilson & Lione
Patel Tulsidas
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