JPH0343732Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electronic device that can be made thinner without reducing its mechanical strength.

[Summary of the idea]

The present invention absorbs at least a portion of the stored components such as component leads and dial drums of variable capacitors stored in a nearly housing-shaped cabinet in order to make the cabinet thinner. By providing an escape hole and covering the escape hole with a decorative plate, it is possible to provide an electronic device that is thin, has high mechanical strength, and has a good external design.

[Background technology and its problems]

In a radio receiver equipped with a cabinet configured in the form of a housing, it is necessary to arrange a large number of parts of various sizes in the cabinet in a predetermined connection state, so it is necessary to arrange these parts evenly within the cabinet. It is difficult. In particular, a bundle of component leads and a variable capacitor attached to a printed circuit board housed in a cabinet are bulky. Conventionally, the thickness of the storage space required to store these component leads and variable capacitors within the cabinet determined the thickness of the entire storage space of the cabinet-shaped cabinet. It has been difficult to reduce the thickness beyond a certain level.

[Means for solving problems]

The present invention has been devised to solve the above-mentioned problems, and includes: a cabinet configured in a substantially housing shape from one cabinet component and the other cabinet component; a plaque attached to the outer surface of the body;
In order to reduce the thickness of the cabinet, a component is attached to the one cabinet structure at a position corresponding to the stored parts so as to absorb at least a part of the stored parts such as component leads and dial drums of variable capacitors stored in this cabinet. The invention relates to an electronic device characterized in that the electronic device is provided with escape holes provided therein, and is configured such that the escape holes are covered with the decorative plate.

〔Example〕

An embodiment in which the present invention is applied to a radio receiver will be described below with reference to the drawings.

FIG. 1 shows the front side of a radio receiver 1, which includes a cabinet 11 made of synthetic resin. The cabinet 11 has a substantially housing-shaped structure consisting of a cabinet main body 11a whose entire front part is shown in FIG. 1, and a back cover 11b shown in FIG. It is composed of The cabinet body 11a also has a small hole for speaker sound output 2, a volume adjustment knob 3, a sound quality selection knob 4, frequency band selection buttons 5, 6, 7, a shortwave frequency selection knob 8, a tuning knob 9, and a rod antenna 1.
0 etc. are provided respectively.

Figures 2 to 4 show the back side of the cabinet, that is, the side of the back cover 11b, and almost the entire lateral direction of the back cover 11b has both the function of a decorative plate and the function of an electrostatic shield. A machine nameplate 12 is attached. Further, the back cover 11b is provided with a recess 13 into which the machine name plate 12 is fitted, and the machine name plate 12 is adhesively fixed in the recess 13 with a suitable adhesive.

The machine nameplate 12 itself is made of a metal plate, such as an aluminum plate, that exhibits a good shielding effect, and on its surface are printed letters, symbols, and numbers indicating the model, etc., as well as a world map and time as a world time reference table. has been done. In addition, the back cover 11b includes a sound emitting opening 14 for guiding sound from a speaker (not shown) to the rear side, and a mounting part for a printed circuit board 15 inside the cabinet 11 (for example, a component lead or a dial for a variable capacitor 21). Openings 17 and 18 forming escape holes for accommodating the drum 16) and an opening 19 for obtaining a sufficient electrostatic shielding effect are provided, respectively. Also machine nameplate 1
2 is also provided with a large number of sound emitting openings 20 corresponding to the sound emitting openings 14 described above.

Therefore, the back side of the radio receiver 1 has a two-layer structure in which the outer side and the inner side are respectively formed of the device nameplate 12 made of a metal plate and the back cover 11b made of synthetic resin. Openings 14, 17, 1 formed in the back cover 11b of this two-layer structure part
All of the openings 17, 18 and 19 other than the sound emitting opening 14 among the openings 8 and 19 are closed by the machine nameplate 12.

Further, as clearly shown in FIGS. 5 and 6, the printed circuit board 15 is located inside the machine nameplate 12 and is connected to the cabinet 1 in a state substantially parallel to and close to the machine nameplate 12.
It is fixed within 1. And printed circuit board 15
A variable capacitor 21 for tuning is attached to the mounting surface of the machine, that is, the surface opposite to the machine nameplate 12.
The rotating shaft 27 passes through the printed circuit board 15 almost perpendicularly. Further, a dial drum 16, which is a rotating body for rotating the rotating shaft 27, is attached to the tip of the rotating shaft 27. The dial drum 16 is housed in the above-mentioned opening 18, which is a cutout of the cabinet 11, at a position slightly apart from the machine nameplate 12. In this case,
It is desirable that the machine nameplate 12 be located at approximately the same position as the printed circuit board 15 in the vertical direction.

Further, a dial thread (not shown) extending from the tuning knob 9 is wrapped around the dial drum 16, and when the tuning knob 9 is rotated, the rotation shaft 27 is connected to the dial drum 16.
is configured to rotate. Note that the dial thread (not shown) extending from the tuning knob 9 forms a notch (not shown), a thin wall part (not shown), etc. in the cabinet 11 so as to be connected to the opening 18. It may be spanned over the dial drum 16 through a cutout or thin part.

Further, as shown in FIG. 4, a grounding plate spring 22 as shown in FIG. 7 is fitted into a recess 25 provided inside the back cover 11b and fixed with an appropriate method (for example, adhesive tape). ing. When the machine nameplate 12 is attached to the back cover 11b, the tips 23 and 26 of the leaf spring 22 are elastically connected to the earth pattern 24 provided on the printed circuit board 15 and the machine nameplate 12 due to their own elasticity. It is becoming more and more under pressure.

Although the present invention has been described above based on one embodiment, it will be understood that the present invention is not limited to this embodiment and can be modified in various ways. For example, in the above embodiment, the opening 18 penetrating the back cover 11b to accommodate the dial drum 16 was formed inside the edge of the back cover 11b, but the opening 18 facing the edge of the back cover 11b was formed inside the edge of the back cover 11b. It may be formed as follows. Furthermore, although almost the entire dial drum 16 is accommodated within the opening 18, the part over which the dial thread (not shown) is stretched may be located outside the opening 18; in this case, the dial drum ( There is no need to form the previously described notch (not shown) or thin wall part (not shown) for passing the material (not shown). Furthermore, the present invention can of course be applied to electronic devices other than radio receivers.

[Effect of idea]

As mentioned above, the present invention has an escape hole that absorbs at least a part of the parts stored in the cabinet, such as component leads and dial drums of variable capacitors, so even if the size of the cabinet is constant, the storage space can be reduced. The thickness can be substantially increased, and therefore it is possible to make the electronic device thinner.

In addition, since the escape hole that absorbs at least a portion of the stored components is covered with a decorative plate, the components inside the cabinet are not exposed to the outside through this escape hole, and the mechanical strength of the cabinet is particularly reduced. It is possible to provide an electronic device with a good external design without any problems.

[Brief explanation of the drawing]

The drawings show an embodiment in which the present invention is applied to a radio receiver, in which Fig. 1 is a perspective view of the front side of the radio receiver, and Fig. 2 shows Fig. 1 with the machine nameplate separated. 3 is a rear view of the radio receiver shown in FIG. 1, and FIG. 4 is a front view of the back cover of the radio receiver cabinet shown in FIG. 1, seen from inside. Figure 5 is a sectional view taken along the line V-V in Figure 3, and Figure 6 is a cross-sectional view taken along the line V-V in Figure 3.
7 is a perspective view of the grounding plate spring. In addition, in the symbols used in the drawings, 1...radio receiver, 11...cabinet, 11a...cabinet main body 11 (cabinet structure), 11
b... Back cover (cabinet component), 12... Machine nameplate (decoration plate), 15... Printed circuit board, 16...
...Dial drum (storage parts), 17, 18...
Opening (evacuation hole), 21...variable capacitor, 27...rotating shaft.

Claims (1)

[Claims for Utility Model Registration] A cabinet configured in a substantially housing shape from one cabinet component and another cabinet component, a decorative plate attached to the outer surface of the one cabinet component, and the cabinet. an escape hole provided in the one cabinet component at a position corresponding to the stored component so as to absorb at least a part of the stored component stored in the cabinet in order to reduce the thickness of the cabinet; An electronic device characterized in that the escape hole is configured to be covered with the decorative plate.