JPS60245321A - Portable radio equipment - Google Patents

Abstract

PURPOSE:To make a titled equipment small and thin in size without being subjected to a bed influence by electronic parts, etc., by constituting it so that the electronic parts, etc. are not placed between antenna plates. CONSTITUTION:Conductive antenna plates 38, 41 are provided on the inside surface and the outside surface of a side plate 30 made of an insulating material in a housing 22. Subsequently, a hole 37 is formed on said plate 30, and from this hole 37, said inside and outside antenna plates 38, 41 are connected to a printed circuit board 26 contained in the housing 22, respectively. In this way, electronic parts, etc. are not placed between the antenna plates 38, 41, therefore, this radio equipment is not subjected to a bad influence (cloak), etc., and also can be made small and thin in size.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a portable radio device, and in particular to the structure of an antenna and a housing.

Structure of the conventional example and its problems In the conventional portable wireless device, for example, as shown in FIGS. Antenna 3 made of conductive material formed
As shown in FIGS. 3 and 4, a printed wiring board 2 is fixed to a casing 1 made of an insulating material, and the casing 1 is connected to the casing 1. A cover made of a conductive material formed in a substantially U-shape on the outer surface of 3. This cover 3 and printed wiring board 2 are connected by a connecting tool 4 through a hole 1a formed in the housing 1, and the cover 3 is used as an antenna. However, the antenna systems used in the above-mentioned conventional portable wireless devices are all loop antenna systems. Due to the characteristics of this loop antenna system, the performance (sensitivity) of the wireless device is determined by the size of the cross-sectional area of the space surrounded by the antenna 3 made of a conductive material. That is, the wireless device is
The larger the cross-sectional area, the better the performance, and these facts are well known. Therefore, reducing the size and thickness of the device body and improving or maintaining performance are contradictory elements, and miniaturization of the entire device.

There was a problem in that there was a limit to the ability to reduce the thickness.

Purpose of the Invention The purpose of the present invention is to eliminate the problems of the above-mentioned conventional example.
It is an object of the present invention to provide a portable wireless device that can be made smaller and thinner as a whole without adversely affecting the performance of the wireless device.

Structure of the Invention The present invention achieves the above object by arranging conductive antenna plates on the inner and outer surfaces of the side plates made of insulating material in the housing,
A hole is formed in the side plate, and the inner and outer antenna plates are brought into elastic contact with the contact through the hole, and these inner and outer antenna plates are connected to a printed wiring board housed in the housing, respectively. It is characterized by this.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. As shown in FIGS. 5 and 6, the casing 22 of the portable wireless device 21 is made of an insulating material such as plastic.
3, a cover main body 24, and a battery cover 26. A printed wiring board 26 is accommodated within the housing body 23. This printed wiring board 26 constitutes an electronic circuit, and also includes a battery holder part 27, a battery terminal (not shown), etc., and a battery (not shown) can be housed in the battery holder part 27. can. A recessed part 31 is formed on the inner surface of the wide side plate 30 on the side opposite to the open part 28 in the housing body 23, leaving a peripheral edge, and a recessed part 32 is formed on the outer surface of the side plate 3o, leaving a peripheral edge. Further, a recessed step portion 33 is formed on the outer periphery of the recessed portion 32. There are multiple locations (
In the illustrated example, holes 34, 35, and 36 are formed at three locations, and a hole 37 is formed at a position closer to the inner long side. The inner antenna plate 38 is made of a conductive material such as a metal plate, and is connected to the hole 3.
A hole 39 is formed corresponding to 7, and a contact Q is formed in an oblique direction by cutting and raising at an inward position in the width direction. The outer antenna plate 41 is made of a conductive material like the inner antenna plate 38, and contacts 42, 43, 44 are formed diagonally by cutting and bending corresponding to the holes 34, 35, 36. A contact 46 is formed in an oblique direction by cutting and bending corresponding to the hole 3A. This contact 46 is formed narrower than the hole 39. Therefore, the inner antenna plate 38
is inserted into the inner recess 31 of the side plate 3o, and the hole 39
is aligned with the hole 37 in the side plate 3o. The outer antenna plate 41 is inserted into the outer recess 32 of the side plate 30. Accordingly, the contacts 42, 43.4 of the outer antenna plate 41
4 are inserted into the holes 34, 35, and 36 of the side plate 30, and are brought into elastic contact with the inner antenna plate 38. Further, the contact 45 of the outer antenna plate 41 is inserted into the hole 37 of the side plate 30 and the hole 39 of the inner antenna plate 38, and a decorative plate 48 made of an insulating material such as plastic is inserted into the outer stepped portion 33 of the side plate 30. The outer antenna plate 41 is covered.

The connections between the inner and outer antenna plates 38 and 41 and the printed wiring board 26 are made using the contacts of the previous embodiment.

45, a via (not shown) is provided on the inner and outer antenna plates 38 and 41, and a connector (not shown) is provided on the printed wiring board 26, and the pins and sockets are connected independently to connect the wireless device. In addition to this,
The present invention can be modified in various ways without departing from its basic technical idea.

Effects of the Invention As is clear from the above explanation, according to the present invention, a conductive antenna plate is provided on the inner and outer surfaces of a side plate made of an insulating material in a housing, a hole is formed in the side plate, and the hole is The inner and outer antenna plates are brought into elastic contact with the contactor, and these inner and outer antenna plates are respectively connected to a printed wiring board housed within the housing. Since no electronic parts or the like are disposed between the antenna plates in this manner, there are advantages such as no adverse effects (cloak) caused by electronic parts or the like, and the ability to be made smaller and thinner.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a conventional portable radio device, FIG. 2 is a partially cutaway side view of the assembled state, and FIG. 3 is an exploded perspective view showing another example of the conventional portable radio device. FIG. 4 is a sectional view of the assembled state, FIG. 6 is an exploded perspective view showing an embodiment of the portable wireless device of the present invention, and FIG. 6 is a sectional view of the assembled state. wireless device, 22... housing, 26... printed wiring board, 38... inner antenna plate, 40... contact, 41... outer antenna plate, 42.43, 44.45・・・・・・Contact child,
46.47... Feed point for antenna, 48... Decorative board. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 4 Figure 5 Figure 6 rM, g required

Claims (1)

[Claims] A conductive antenna plate is disposed on the inner and outer surfaces of a side plate made of an insulating material in the housing, a hole is formed in the side plate, and the inner and outer antenna plates are brought into elastic contact with each other by a contact through the hole. , a portable wireless device characterized in that the inner and outer antenna plates are respectively connected to a printed wiring board housed within a housing.