JPH02222599A - Electronic equipment case - Google Patents

Abstract

PURPOSE:To miniaturize an electronic circuit board by a method wherein a printed wiring pattern is provided to the inner side of the case of an electronic equipment. CONSTITUTION:Straight line-like printed wiring patterns 11a-11d are formed on the inner side of a base 10a in the lengthwise direction of the base 10a, and a pair of connector support pieces 12 and a pair of connector support pieces 13 are provided as protruding upright near the patterns 11a-11d. An electronic circuit board 14 is arranged in a case 10, and the board 14 is fixed to a cover 10b through the intermediary of a collar 15. Conductor sections 20b of an interconnector 20 vertically penetrate a main body 20a, being kept in parallel with each other. Thus, an analog circuit block 16 and a digital circuit block 17 of the electronic circuit board 14 are electrically connected to each other through the interconnectors 20 and 21 and the printed wiring patterns 11a-11d. By this setup, a circuit board and moreover the whole electronic equipment can be miniaturized.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a housing used for electronic equipment such as a telephone.

(Prior Art) FIG. 4 illustrates an example of an electronic circuit board disposed within a housing of a telephone.

This electronic circuit board 1 incorporates an analog circuit block 2 and a digital circuit block 3, and a connector 4 is disposed between both circuit blocks 2.3.

Note that the connector 4 is provided to connect and support a sub-board (not shown).

(Problem to be Solved by the Invention) In the board 1 in which the connector 4 is located between the circuit blocks 2 and 3, the printed wiring patterns 5a to 5d that interconnect the circuit blocks 2 and 3 are placed on the side of the board 1. This results in an increase in the size of the board 1, the casing that houses the board 1, and the overall size of the telephone.

Incidentally, similar problems occur in electronic equipment other than telephones.

In view of this situation, it is an object of the present invention to provide a casing for an electronic device that can reduce the size of an electronic circuit board.

[Structure of the Invention] (Means for Solving the Problems) The casing of the electronic device according to the present invention has a printed wiring pattern formed on its inner surface.

(Function) In this case, the printed wiring pattern is utilized as a wiring means.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows a telephone to which a housing according to the present invention is applied.

This phone clerk housing 10 has a base 10a and a cover 10b.
V! It has a fixed structure and is made of electrically insulating material such as synthetic resin.

As shown in FIG. 2, linear printed wiring patterns 118 to 11d are formed along the longitudinal direction of the base 10a on the inner surface of the bottom part of the base 10a.
A pair of connector support pieces 12 and a pair of connector support pieces 13 are protruded near one end and the other end of the connectors 8 to 11d, respectively.

An electronic circuit board 14 is arranged inside the casing 10,
The substrate 14) is fixed to the cover 10b via a collar 15.

As shown in FIG. 3, an analog circuit block 16 and a digital circuit block 17 are mounted on the electronic circuit board 14, and a connector 19 for fixedly supporting the sub-board 18 shown in FIG. : It is located between 16 and 17.

Contact portions 16a and 17a are formed at the ends of the circuit blocks 16 and 17, with which the upper surfaces of interconnectors 20 and 21, which will be described later, come into contact.

As shown in FIG. 2, the interconnector 20 includes a main body portion 20a made of rubber and a plurality of conductor portions 20 made of conductive rubber.
It consists of b. The conductor parts 20t) vertically pass through the main body part 20b in parallel to each other, and the arrangement pitch thereof matches the arrangement pitch of the printed wiring patterns 11a to 11d.

Note that the other interconnector 21 also has a configuration in which a plurality of conductor portions 21b are passed through the main body portion 21a.

The interconnectors 20 and 21 include the pair of connector support pieces 12 and the pair of connector support pieces 13, respectively.
The base 10a is fitted into the base 10a, thereby being supported upright on the base 10a.

When the cover 10k) is fitted onto the base 10a in this state, the interconnectors 20 and 21 are pressed by the contact portions 16a and 17a formed on each circuit block 16 and 17 of the board 11, respectively. the result,
The contact portion 16a and one end of the printed wiring patterns 11a to 11d are electrically connected via each conductor portion 20a of the interconnector 20, and the contact portion 17a is electrically connected via each conductor portion 21a of the interconnector 21. The other ends of the printed wiring board patterns 11a to 11d are electrically connected.

Thus, the analog circuit block 1 of the electronic circuit board 14
6 and digital circuit block 17 are connected to interconnector 20
．． 21 and printing [will be electrically connected via J patterns 118 to 11d.

As is clear from the comparison between FIG. 3 and FIG. 4, according to this embodiment, the printed wiring patterns 5a to 5d on the substrate 1 shown in FIG. It can be made smaller than the substrate 1.

Note that the printed wiring pattern can be formed not only on the bottom top surface of the base 10a of the housing 10, but also on the side inner surface of the base 10a and the inner surface of the cover 10b, if necessary.

Furthermore, this printed wiring pattern can be applied not only to connections between circuit blocks on an electronic circuit board, but also to connections between electrical components installed within a housing.

The technique of the present invention of forming a printed wiring pattern on the inner surface of the housing can be effectively applied to electronic devices other than telephones.

〔Effect of the invention〕

Since the casing according to the present invention has a printed wiring pattern formed on its inner surface, the printed wiring pattern can be used, for example, to connect each electronic circuit block on an electronic circuit board, thereby reducing the size of the circuit board. Therefore, it is possible to downsize the electronic separate device as a whole. Therefore, it is suitable for use in electronic equipment such as telephone caps that require miniaturization.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view conceptually showing an example of application of the casing according to the present invention to a telephone; FIG. 2 is a perspective view conceptually showing the configuration of a printed wiring pattern and the configuration of an interconnector;
FIG. 3 is a conceptual diagram illustrating the configuration of the electronic circuit board of the telephone shown in FIG. 1, and FIG. 4 is a conceptual diagram illustrating the configuration of the electronic circuit board of the conventional telephone. DESCRIPTION OF SYMBOLS 10... Housing, 10a... Base, 10b... Covers 11a-11d... Printed wiring pattern, 14...
・Electronic circuit board, 20.21...interconnector. Figure 1 Figure 2

Claims (1)

[Claims] A casing for an electronic device characterized by having a printed wiring pattern formed on the inside surface.