JPS60247996A - Cabinet device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cabinet device for equipment that is intended to be made thinner, such as ultra-compact radio receivers and tape recorders.

Conventional configurations and their problems Traditionally, as a means of making equipment such as radio receivers smaller and thinner, efforts have been made to reduce the thickness of synthetic resin cabinets, and to use chips and composite parts to make them smaller. Attempts have been made to replace some cabinets with metal plates. However, devices such as radio receivers that use a large number of electrical components require a printed wiring board, which requires space to mount the components on this board and store it in a cabinet. In order to deal with this, recently, printed wiring boards themselves have been made thinner, and depending on the device, ultra-thin flexible printed wiring boards are currently being used.

However, in any case, storage space for the printed wiring board is absolutely necessary, and means for attaching the printed wiring board to the cabinet, such as a boss or a locking piece, must be constructed inside the cabinet.

OBJECT OF THE INVENTION An object of the invention is to provide a cabinet device in which a printed wiring board is used as a part of a cabinet and is attached to another cabinet or chassis with screws, but the screw heads do not affect the reduction in thickness. be.

Structure of the Invention The cabinet device of the present invention has a cabinet structure in which a printed wiring board itself is used as a cabinet and a metal decorative plate is provided on the surface of the cabinet, a through hole is provided at the mounting position of the printed wiring board, and the decorative plate is provided with a through hole at the mounting position of the printed wiring board. has a recess that is narrowed down to fit into the through hole, and is attached to the other cabinet or chassis with a screw through the mounting hole provided in the recess. By being located in the recessed portion, it is constructed so that it does not protrude from the surface of the decorative board.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail based on the drawings. 1 to 4 show an embodiment of the present invention. The embodiment shows a case where the present invention is applied to a radio receiver. In the figure, reference numeral 1 denotes a main body cabinet made of synthetic resin, and a decorative plate 2 made of aluminum is provided on the front surface of the cabinet. A through hole 3 is formed in a part of the decorative plate 2 to form a dial display section 4. 5
is a guideline. A tuning knob 6 for driving the pointer 6, a power switch knob 7, a volume knob 8, and a jack 9 are provided on the top surface of the main cabinet 1, and a band selection switch knob is provided on the side surface. There are 10.

The front surface of the main body cabinet 1 is covered with the decorative plate 2 except for the ferrite antenna storage part 1a, and the top and side surfaces are partially covered by the bent portions of the decorative plate 2. Then, on the rear side, a rear cabinet consisting of a printed wiring board 11 and a decorative plate 12 made of a stainless metal thin plate provided on the surface of the printed wiring board 11 is fitted into the side of the main cabinet 1. It is installed so that it fits. The rear cabinet is fixed by tightening screws 14 to bosses 13 provided on the main cabinet 1. On the inside of the printed wiring board 11, chip-shaped components 15a to 15e are mounted by soldering so that a predetermined circuit is configured by printed wiring (not shown) formed on the surface thereof. A guide 16 for the pointer 5 is provided at a position corresponding to the dial display section 4, and a worm 17 linked to the tuning knob 6 is provided to enable the pointer to travel. A transparent plate 18 is held between the main body cabinet 1 and the decorative plate 2 so that the pointer 6 can be seen from the outside.

The printed circuit board 11 constituting the rear cabinet is attached and fixed to the main cabinet 1 by screws 14 as shown in FIGS. 3 and 4. That is, the boss 13 is provided integrally with the main body cabinet 1, and this boss 1
3 has a tap hole 19 formed in its center. On the other hand, a through hole 20 is formed in the printed wiring board 11 at a corresponding position, and a convex part 21 is formed in the decorative plate 12 to form a convex part on the surface.
The convex portion on the rear surface of the printed wiring board 11 is fitted into the through hole 2o of the printed wiring board 11. Then, a mounting hole 22 is provided in the center of the narrowing recess 21 so that the screw 14 can pass therethrough, and the printed wiring board 11 is mounted to the boss 13 by screwing the screw 14 into the tap hole 19 of the boss 13. ing. At this time, the head 23 of the screw 14 is housed in the narrowing recess 21 and does not protrude above the surface of the decorative plate 12.

In the above-described embodiment, the screw heads 23 are accommodated in the recesses 21 of the decorative plate 12 so that they do not protrude above the surface. Although it is conceivable that it may protrude above the surface, even in this case, there is no difference in terms of aiming for thinning. Further, the constituent parts of the boss 13 described above may be arranged not in the main body cabinet 1 but in the chassis.

As described in detail, according to the present invention, in a cabinet structure in which a printed wiring board itself is used as a cabinet and a metal decorative plate is provided on the surface of the cabinet, a decorative plate is installed in a through hole provided in the printed wiring board. Since the cabinet structure is configured to fit into the constricted recesses provided in the plate and to be attached to the boss of the other cabinet or chassis with screws through the mounting holes provided in the recesses, the cabinet system as a whole is very easy to use. It can be made thin, and by positioning the screw head in the concave part of the decorative plate, the amount of protrusion can be suppressed. Therefore, it is extremely useful as a cabinet device for equipment that aims to be thinner. .

[Brief explanation of drawings]

The figures show one embodiment of the cabinet device of the present invention, in which Fig. 1 is a perspective view of the entire structure, Fig. 2 is a cross-sectional view thereof, Fig. 3 is an enlarged sectional view of its essential parts, and Fig. 4 is its overall perspective view. FIG. 3 is an exploded perspective view of main parts. 1...Main cabinet, 11...Printed wiring board, 12...9 metal decorative boards, 13...
...Boss, 14...Screw, 2o...
・Through hole, 21... Restriction recess, 22...
...Mounting hole, 23...Screw head. Name of agent: Patent attorney Toshio Nakao and one other person? 1
Figure 1 Figure 2 Figure 3

Claims (2)

[Claims] (1) A cabinet structure is provided with a metal decorative plate on the surface so that the printed wiring board itself serves as a cabinet, and the metal decorative plate is formed in the through hole provided in the printed wiring board. The four narrowed parts are fitted together, and the screw is tightened to the boss of the other opposing cabinet or chassis through the mounting hole provided in the recess so that the screw head is positioned in the recess. cabinet equipment. (2) The cabinet device according to claim 1, wherein the metal decorative board is configured to be attached to a printed wiring board in advance.