JPS6358998A - Electric equipment - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention rotatably supports a rotating lid with respect to a device body,
The present invention relates to an electrical device in which printed wiring boards housed inside the device body and the rotating lid are connected by a flexible wiring board that passes near a rotating portion of the rotating lid to the device body.

BACKGROUND OF THE INVENTION In recent years, with the miniaturization of electrical equipment, flexible wiring boards have been increasingly used as a means for electrically connecting printed wiring boards because of their thinness and flexibility. The scope of its use is not limited to the inside of electrical equipment, but its use in visible parts is increasing, and its flexibility is also increasing its use in movable parts.

Conventionally, electrical equipment using flexible wiring boards has supported a rotating lid so as to be rotatable relative to the equipment body, and the printed wiring boards housed inside the equipment body and the rotating lid, respectively, are attached to the rotating lid. The connection was made using a flexible wiring board that passed near the rotating part to the main body of the device.

Problems to be Solved by the Invention However, in the above-mentioned conventional device, when the rotating lid is supported with a predetermined gap with respect to the main body of the device, the 7 lexiple wiring board is visible through the gap, and the copper foil in the visible part is exposed. The appearance was not very good, there were problems such as the copper foil breaking due to repeated stress in the visible part, and it was not fully satisfactory in terms of grace and quality.

The present invention solves the above-mentioned conventional problems, and aims to provide an electrical device that has a good appearance and can prevent deterioration in quality.

Means for Solving the Problems In order to achieve this object, the electrical equipment of the present invention is provided with a solder resist or oil-based ink on a portion of the flexible wiring board corresponding to the gap between the equipment body and the rotating lid. The feature is that a transparent film is attached to the entire surface containing resist or oil-based ink.

Effect of the present invention With the above-described configuration, the copper foil on the flexible wiring board can be hidden in the visible part with solder resist or oil-based ink, and the copper foil can be prevented from breaking in the movable part with the transparent film, and the quality can be improved. and quality improvement can be achieved together.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.

FIG. 2 is a perspective view showing a state in which a flexible wiring board according to an embodiment of the present invention is attached to an electrical device, and FIG. 3 shows a cross section taken along line A-A in FIG. The details are shown in the figure.

Reference numeral 1 denotes a cassette holder made of sheet metal, which opens and closes at a predetermined angle around a certain fulcrum (not shown).

A radio board 2 is fixed onto the cassette holder 1 with the soldering surface 3 facing upward. A cassette lid 4 made of metal or resin is also fixed to the cassette holder 1, and its end surface 5 is in contact with the end surface 7 of the cabinet 6 to prevent it from coming into contact with the end surface 7 of the cabinet 6 when the cassette lid 4 is opened or closed. A slight gap 8 is provided between them. On the bottom cabinet 9 side, a main board 1o is fixed to the cabinet 6 with screws (not shown), and a radio board 2 is fixed to the cabinet 6 with screws (not shown).
The flexible wiring board 11 is soldered and fixed to the flexible wiring board 11. In addition, this flexible wiring board 11 has a solder resist 13 printed on the copper foil 12 on a portion corresponding to the gap 8 between the end surface 5 of the cassette 7a 4 and the end surface 7 of the cabinet 6. A transparent film 14 is pasted over the entire surface of the flexible wiring board 11.

The operation of the electrical device of this embodiment configured as described above will be explained below.

A part of the flexible wiring board 11 is visible through the gap 8 between the end face 5 of the cassette lid 4 and the end face 7 of the cabinet 6, but since the solder resist 13 is printed on that part, the copper foil 12 cannot be directly seen. do not have.

Further, when the cassette lid 4 is opened and closed around the fulcrum of the cassette holder 1, it is bent by the printed part of the solder resist 13, but since it is protected by the transparent film 14, no peeling or lifting occurs.

As described above, according to this embodiment, since the solder resist 13 is printed on the visible part of the flexible wiring board 11, the appearance of the product from the outside is good, and the transparent film 14 is pasted on top of the solder resist 13. By tightening the adhesive, it is possible to prevent breakage of the bent portion, peeling off of the solder resist 13, and prevention of floating.

Note that although solder resist was used in this example, oil-based ink may also be applied.

Furthermore, although no specific explanation was given regarding the color of the solder resist, if it matches the color of the product's exterior, the sense of strangeness will be eliminated, and the quality will be significantly improved.

Effects of the Invention The present invention can greatly improve the appearance of the flexible wiring board by providing solder resist or oil-based ink on the copper foil in the visible part of the flexible wiring board.
By pasting a transparent film thereon, it is possible to prevent breakage due to repeated stress and at the same time prevent peeling and floating of printed or applied solder resist or oil-based ink.

Furthermore, by matching the color of the solder resist or oil-based ink to the color of the product's appearance, a number of excellent effects can be obtained, such as a greater improvement in quality than in K.

[Brief explanation of the drawing]

FIG. 1 is an enlarged cross-sectional view of essential parts of an electrical device according to an embodiment of the present invention, FIG. 2 is a perspective view of the same electrical device, FIG. 3 is a cross-sectional view taken along the Mu line in FIG. 2, and FIG. FIG. 3 is a sectional view showing a partially operated state, and FIG. 6 is a partial front sectional view of the main part. 8... Gap, 11... Flexible wiring board, 12... M foil, 13... Ruder resist, 14... Transparent film. Name of agent: Patent attorney Toshio Nakao and 1 other person 4-
11 cassette sword 6---Kihifunt 8-Genma 1/-11 cassette sword da 6---Kiihifunt 8-Genma 1/-11 cassette sword da6---kiihifuntto8-genma1/-11fregosiarutorikikokaijief? --Illustration No. 1 Figure 14-11 Transparent embedded film Figure 2 to'? 4th G. Figure S

Claims (1)

[Claims] A device body, a rotating lid that is rotatable with respect to the device body and supported with a predetermined gap between the device body, and a device passing through the vicinity of the rotating portion of the rotating lid relative to the device body. A flexible wiring board is arranged as shown in FIG. Alternatively, an electrical device characterized in that an oil-based ink is provided and a transparent film is attached to the entire surface containing the solder resist or oil-based ink.