JPH07273685A - Enclosure for radio equipment - Google Patents

Abstract

PURPOSE:To obtain a structure with excellent assembling performance for the enclosure of a radio equipment. CONSTITUTION:The enclosure is made up of a front side case 1 by making it with an insulating resin and to which a receiver 3, a transmitter 4, a dial button 5 and a function button 6 or the like are mounted and of a rear side case 2 formed by a conductive member 11 being a metallic wire having a required length and shape as an antenna with an insulating resin while the member 11 is set to a metallic die in the injection molding. A printed circuit board 7 whose rear side electric circuit is printed or soldered is fitted to a boss of the front case 1 through a throughhole 8 by a machine screw 9. Contacts 10 on the printed circuit board 7 are connected to the dial and function buttons 5, 6 via a silicon rubber switch. The antenna 11 is in contact with a conduction terminal 13 of the printed circuit board 7 on a rib 12 of the rear case 2 when the enclosure is assembled and is used to emit or receive a radio wave sent/ received by the electric circuit of the printed circuit board 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing of a wireless device, and more particularly to a structure of a housing of a wireless device with an antenna such as a cordless telephone and a portable wireless transceiver.

[0002]

2. Description of the Related Art As shown in FIG. 6, a conventional wireless device of the same type includes a printed circuit board 7 on which various electric circuits and parts are mounted, a metal wire and a ferrite core whose surface is covered with vinyl chloride resin or the like. A rod-shaped or linear conductive member 19 such as is stored in the housing as an antenna. The conductive member 19 is attached by pulling it into the housing through the opening of the antenna positioning portion 20 and fixing the root portion 22 together with the printed board 7 to the back case 2 of the housing with a screw 21. The radio wave received by the antenna of the conductive member 19 is transmitted from the root portion 22 to the internal electric circuit via the conductive portion 13 which is one terminal of the printed circuit board 7 in contact therewith.

[0003]

As described above, conventionally, the antenna 19 is passed through the antenna positioning portion 20 and the substrate 7
After the positioning, the screws were fixed to the back case 2 with the screws 21 to assemble, and the assembling performance was not good.
In particular, in assembling a small wireless device in which a long linear anathena is built in the housing, there is a drawback that the mounting work is difficult because the rigidity of the antenna itself is low.

An object of the present invention is to solve the above-mentioned drawbacks and to provide a housing of a radio device having a structure which is easy to assemble.

[0005]

A housing of a wireless device according to the present invention is such that an insulating member forming the housing and a linear conductive member forming the antenna are integrated, and one end of the conductive member is formed. At least a part of the part including the parts is exposed on the surface of the insulating member and is simultaneously molded.

Further, the end portion of the conductive member exposed on the surface of the insulating member is arranged in contact with one conductive terminal portion of the substrate to be mounted so as to be conductive.

Further, at least one of the peripheral portion of the end portion of the conductive member exposed on the surface of the insulating member and the conductive terminal portion of the substrate in contact with this end portion is flexible.

[0008]

Since the conductive member forming the antenna is integrally molded with the housing,
There is no need for attachment parts and attachment work for fixing the antenna to the housing.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is an exploded perspective view of an embodiment of the present invention, and FIG. 2 is a sectional view of the essential portions of the embodiment of FIG.

1 and 2, this embodiment is an example in which the present invention is applied to a cordless telephone handset. The structure of the housing of this slave is made by molding the resin of the insulating member,
Handset 3, transmitter 4, dial button 5, function button 6
And the like, and a back case in which a conductive member 11 which is a metal wire having a length, shape, and material required for an antenna is set in a mold during injection molding and molded together with a resin of an insulating member. It consists of 2. The printed circuit board 7 on which the electric circuit on the back surface is printed or soldered is fixed to the boss of the front case 1 through the through hole 8 by the screw 9 or to the front case 1 by a snap fit method or the like. The contacts 10 on the printed circuit board 7 are dials and function buttons 5 and 6 via a rubber switch made of silicon.
Connected to. When the housing is assembled, the metal wire antenna 11 comes into contact with the conducting terminal portion 13 which is the antenna terminal of the printed circuit board 7 on the rib 12 of the back case 2 and emits radio waves transmitted and received by the electric circuit of the circuit board 7. To receive.

In this embodiment, the linear conductive member 11 is formed as a metal wire on the inner surface of the back case 2. However, the conductive member is not limited to a metal wire, and can be any other antenna as long as it can be used as an antenna. Ferrite, carbon, or other conductive member may be linear, and depending on the positional relationship with the printed circuit board 7 or the mounting of other components, as shown in FIG. Is the position of the dotted line 14 on the inner surface of the front case 1, and the conductive terminal portion 1 of the printed circuit board 7 is
You may make it the end contact with 3.

Further, in any case, the conductive member may be not exposed on the surface of the housing, but may be embedded inside the housing except the contact portion with the printed board. In particular, when a metal wire is embedded, an effect of reinforcing the resin housing can be expected.

3 and 4 are views showing an example in which the antenna 11 is formed on the battery cover 15 which is a part of the housing. When the battery cover 15 is slid in the direction of the arrow in FIG. 3 and fixed to the telephone body by the four claw portions 17, as shown in the cross-sectional view of FIG. Contact the part 13. At this time,
If either or both of the antenna end portion 16 and the conduction terminal portion 13 are made to bend slightly, the influence of the difference in the dimensional accuracy of the respective members is reduced, and reliable conduction can be obtained.

FIG. 5 shows the conductive terminal portion 13 of the printed circuit board 7.
In a perspective view of the vicinity, in order to give the conductive terminal portion 13 a flexure, a cutout portion 18 is provided in parallel with the small flat plate-shaped conductive terminal portion 13 on both sides of the substrate.

[0016]

In the housing of the wireless device of the present invention, since the conductive member forming the antenna is formed integrally with the housing, parts such as screws for fixing the antenna are not required, and the number of parts and the mounting work are reduced. Be reduced. In addition, since the degree of freedom in the position of arranging the antenna is increased and the structure of the positioning part and the mounting part of the antenna is simplified, the space inside the housing is expanded and the assembly work of other parts is facilitated. It is possible to reduce the size and cost of the device.

Further, when the metal wire antenna is embedded and molded in a resin casing, a reinforcing effect against damage or loss of the casing can be expected.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part of FIG.

FIG. 3 is a perspective view of another embodiment of the present invention.

FIG. 4 is a sectional view of a contact portion between a conductive member and a conductive terminal portion of a substrate.

FIG. 5 is a diagram showing a cutout portion around a conductive portion of a printed circuit board.

FIG. 6 is a diagram showing an antenna mounting portion of a conventional wireless device.

[Explanation of symbols]

 1 Insulating member case, front case 2 Insulating member case, back case 3 Receiver, speaker 4 Transmitter, microphone 5 Dial button 6 Function button 7 Printed circuit board 8 Through hole 9, 21 Screw 10 Contact 11, 14, 19 conductive member, metal wire, antenna 12 rib 13 conductive terminal portion 15 battery cover 16 antenna end portion, contact portion 17 claw portion 18 cutout portion 20 antenna positioning portion 22 antenna root portion

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication H05K 5/00 C 7362-4E

Claims (4)

[Claims] 1. A wireless device having an antenna, wherein an insulating member forming a casing of the wireless device and a linear conductive member forming the antenna are integrated, and
A housing for a wireless device, comprising a structure in which at least a part including one end of the conductive member is disposed so as to be exposed on a surface of the insulating member and is simultaneously molded. 2. The wireless device according to claim 1, wherein the end of the conductive member exposed on the surface of the insulating member is arranged in contact with one conductive terminal portion of the substrate to be mounted so as to be conductive. Housing. 3. A flexible structure such that at least one of a peripheral portion of an end portion of a conductive member exposed on the surface of an insulating member and a conductive terminal portion of a substrate in contact with the end portion can maintain contact between them. The housing of the wireless device according to claim 1, which has a property. 4. The conductive member is formed by embedding a metal wire, which is temporarily formed into a predetermined shape, into an insulating material, except for one end of the metal wire. The housing of the wireless device according to 1 above.