JP2004056560A - Portable transceiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a conducting means between a circuit board of a module and an antenna from being affected by moisture and sweats in a portable transceiver having the module housed and fixed in/to a module housing part of a waterproof structure formed in a main body case and the antenna arranged outside the main body case. <P>SOLUTION: This arm portable transceiver comprises the plastic main body case 11 provided with the module housing part 11a; the antenna 13 of a thick annular metal member inserted liquid-tightly into a glass side opening 11b of the main body case 11; glass 12 inserted liquid-tightly into the antenna 13 of the thick annular metal member; the module housed in the module housing part 11a; a conductive plate spring member 22 for connecting the surface 13b of the antenna 13 of the thick annular metal member at the side of the module housing part to the circuit board 14; and a rear cover 18 for liquid-tightly sealing a rear side opening of the main body case 11. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a portable transmitting and receiving organization such as a wristwatch-type mobile phone and a wristwatch with a communication function.
[0002]
[Prior art]
Various antenna structures have been developed for a portable transceiver such as a wristwatch-type mobile phone or a wristwatch with a communication function due to restrictions on the shape of the portable transceiver, the material and dimensions of the case body, and the like. For example, Japanese Patent Application Laid-Open No. 2001-272480 discloses a configuration in which a coil-shaped antenna pattern is formed on a disk-shaped substrate housed in a module housing portion formed in a case main body. Further, Japanese Patent Application Laid-Open No. 2001-228268 discloses a device incorporated in a tongue-shaped member extending at least partially along a wristband from a main body case. Further, Japanese Patent Laid-Open No. Hei 10-271196 discloses an antenna incorporated in an arm band. Although the antenna structures disclosed in the above publications have been devised individually, they cannot always be widely adopted as antenna structures of various portable transceivers.
[0003]
Still another conventional example has a structure of an antenna 13 arranged to form a closed loop on the periphery of a glass 12 of a main body case 11, as shown in a sectional view of a main part of a portable transceiver in FIG. That is, in the wrist-type portable transceiver having this antenna structure, a large-diameter cylindrical module storage portion 11a and a small-diameter cylindrical opening 11b are formed, and an annular antenna storage portion 11c is formed on the outer surface around the cylindrical opening 11b. , A module housed and fixed in the cylindrical module housing 11a, a glass 12 for sealing the cylindrical opening 11b in a liquid-tight manner, and a glass housing 11c arranged and fixed in the annular antenna housing 11c. And a connection structure for connecting the circuit board 14 of the module and the ring antenna 13 to each other.
[0004]
The module housed and fixed in the large-diameter cylindrical module housing part 11a includes a circuit board 14, a module part 15, a module mounting member 16, and a liquid crystal display module 17.
[0005]
The connection structure for connecting the circuit board 14 of the module and the annular antenna 13 includes a through hole 11e for conduction formed in a step 11d between the large-diameter cylindrical module storage portion 11a and the small-diameter cylindrical opening 11b. A connection pin 21 having one end in contact with the annular antenna 13 and penetrating through the through hole 11 e; and a leaf spring member 22 having one end fixed to the circuit board 14 and the other end elastically contacting the other end of the connection pin 21. The seal ring 27 is disposed between the outer peripheral surface of the pin 21 and the inner peripheral surface of the through hole 11e for conduction.
[0006]
In short, the antenna 13 is provided on the upper surface of the main body case 11, and a waterproof seal ring 27 is arranged on the connection pin 21 which is a conductive member. The antenna 13 and the antenna 13 are housed and fixed in the case main body 11 by the connection pin 20. This is the structure of an antenna adapted to be connected to the circuit board 14 of the module in which it is located. The portable transceiver adopting the antenna structure disclosed in FIG. 2 is characterized in that it is easy to assemble as well as easy to make small and thin. However, since the contact portion P between the antenna 13 and the connection pin 20 exists outside the module storage portion 11a having a waterproof structure, moisture and sweat enter the contact portion P. For this reason, the contact portion P between the antenna 13 and the connection pin 20 is corroded by invading moisture or sweat, and the conductivity of the conductive path between the antenna 13 and the circuit board 14 of the module housed and fixed in the case body 11 is reduced. And the communication performance of the portable transceiver deteriorates.
[0007]
[Problems to be solved by the invention]
The problem to be solved by the present invention is a portable transceiver having a module housed and fixed inside a body case having a waterproof structure and an antenna arranged on an outer surface of the body case. An object of the present invention is to prevent the conductive means between the circuit board and the antenna from being affected by moisture or sweat.
[0008]
[Means for Solving the Problems]
A portable transmitter / receiver which solves the above-mentioned problems, a plastic body case having a module storage portion, an antenna of a thick annular metal member which is liquid-tightly fitted into a glass side opening of the body case, and the annular metal member Conductive leaf spring member for connecting the glass fitted in the antenna of the member in a liquid-tight manner, the module housed in the module housing, and the circuit board of the module and the surface of the annular metal member on the module housing side. And a back cover for sealing the back side opening of the main body case in a liquid-tight manner.
[0009]
Further, a portable transceiver that solves the above-mentioned problems is provided with a plastic main body case in which a small-diameter cylindrical module storage portion and a large-diameter cylindrical opening are formed, and a thick wall in which an annular step portion is formed on an inner peripheral surface. An annular metal member which is liquid-tightly fitted in a large-diameter cylindrical opening of the main body case, and an antenna of the annular metal member which has a lower surface of an outer peripheral portion in contact with the annular step portion. A glass liquid-tightly fitted on the inner peripheral side of the module, a module housed in the cylindrical module housing, supported and fixed on the back surface of the annular metal member, a circuit board of the module and the annular metal member And a back lid for sealing the opening of the small-diameter cylindrical module storage portion in a liquid-tight manner.
[0010]
In the portable transceiver described above, the glass is fitted on the inner peripheral surface side of the antenna of the annular metal member via packing, and the antenna of the annular metal member is large in the main body case via a seal ring. It was designed to be fitted into a cylindrical opening having a diameter.
[0011]
As described above, in the portable transceiver of the present invention, the conduction means between the circuit board of the module and the antenna is constituted only by the conduction leaf spring member. Since the conductive leaf spring member is disposed in a waterproof module storage portion composed of a plastic main body case, a thick annular member antenna, glass and a back cover, the conductive means has moisture. The effect of sweat and permeation is completely insignificant.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings, in the case where the portable transceiver is a wrist portable transceiver that is worn on an arm. The same applies to a portable transmitter / receiver that is attached to a part other than the wrist, as in the case of a portable wrist transceiver.
FIG. 1 is a cross-sectional view of the left half of a wrist-type portable transceiver according to an embodiment of the present invention. In FIG. 1, a main body case 11 is a plastic in which a cylindrical module storage portion 11a and a cylindrical glass side opening 11b are formed. It is a main body case made of. The inner diameter of the cylindrical glass side opening 11b is larger than that of the cylindrical module storage portion 11a, and therefore, the main body case 11 has a step 11c. The antenna 13 is a substantially trapezoidal, thick annular metal member having a horizontal cross section. The antenna 13 made of a thick annular metal member is fitted into the cylindrical glass side opening 11b of the main body case 11, and is fixed with an adhesive. A seal ring 28 is disposed in an annular recess formed in the step 11c of the main body case 11.
[0013]
The front surface, the back surface, and the outer peripheral surface of the antenna 13 of the thick annular metal member are flat, but an annular protrusion 13a is formed on the inner peripheral surface. The annular projection 13a forms a shallow cylindrical glass mounting portion for mounting glass. The annular projection 13a functions as a module support member.
[0014]
The module housed and fixed in the cylindrical module housing part 11a includes a circuit board 14, a module part 15, a module mounting member 16, and a liquid crystal display module 17. The liquid crystal display module 17 is disposed in a space surrounded by the annular projection 16a of the module mounting member 16. A part of the distal end of the annular projection 16a of the module mounting member 16 is in contact with the back surface 13b of the antenna 13 made of a thick annular metal member.
[0015]
The glass 12 is fitted into the glass mounting portion of the antenna 13 of the thick annular metal member such that the outer peripheral portion of the back surface thereof comes into contact with the annular projection 13a of the antenna 13 of the thick annular metal member, and the adhesive It is fixed with. A seal packing 19 is inserted between the inner peripheral surface of the antenna 13 and the outer peripheral surface of the glass 12 as a thick annular metal member.
[0016]
The conductive means between the circuit board 14 of the module and the antenna 13 is a conductive leaf spring member 22. That is, one end of the conductive leaf spring member 22 is fixed to the circuit board 14 of the module, and the other end is in elastic contact with the back surface 13c of the antenna 13 of a thick annular metal member.
[0017]
As described above, in the wrist-type portable transceiver according to the embodiment of the present invention, the conductive means between the circuit board 14 and the antenna 13 of the module is constituted only by the conductive leaf spring member 22. The conductive leaf spring member 22 is disposed in the module housing portion 11a having a waterproof structure including the plastic main body case 11, the antenna 13 of a thick annular member, the glass 12, and the back cover 18. The conducting means is not affected by moisture or sweat. Therefore, the communication performance of the wrist-type portable transceiver according to the present invention is not adversely affected by moisture or sweat.
[0018]
【The invention's effect】
According to the present invention, in a portable transceiver having a module housed and fixed inside a body case having a waterproof structure and an antenna arranged on an outer surface of the body case, a circuit board of the module and the antenna are provided. Can be prevented from being affected by moisture or sweat. Therefore, the reliability of the antenna connection portion is ensured in an actual use environment, and the good transmission / reception sensitivity of the portable transceiver can be maintained.
[Brief description of the drawings]
FIG. 1 is a sectional view of a left-hand half of a wrist-type portable transceiver according to an embodiment of the present invention.
FIG. 2 is a sectional view of a left-hand half of a conventional wrist-type portable transceiver.
[Explanation of symbols]
11 Case 11a Module storage portion 11b Glass side opening 12 Glass 13 Antenna 13a Annular projection 13b Conducting surface 14 Circuit board 15 Module 16 Module mounting member 16a Engaging projection 17 Liquid crystal module 18 Back cover 19 Packing 20 Connection pin 22 Conducting plate Spring member 27 Seal ring

Claims (4)

A plastic body case with module storage,
An antenna of a thick annular metal member fitted in a liquid-tight manner on the glass side opening of the main body case,
A glass liquid-tightly fitted to the antenna of the annular metal member,
A module stored in the module storage unit;
A conductive leaf spring member for connecting the circuit board of the module and the surface of the annular metal member on the module housing side of the antenna,
A portable transceiver comprising: a back cover for sealing a back opening of the main body case in a liquid-tight manner. A plastic body case in which a small-diameter cylindrical module storage portion and a large-diameter cylindrical opening are formed,
An antenna of an annular metal member which is a thick annular metal member having an annular step formed on its inner peripheral surface and which is liquid-tightly fitted into a large-diameter cylindrical opening of the main body case;
A glass in which the lower surface of the outer peripheral portion is in contact with the annular step portion and is liquid-tightly fitted on the inner peripheral surface side of the antenna of the annular metal member;
A module housed in the cylindrical module housing, supported and fixed on the back surface of the annular metal member,
A conductive leaf spring member for connecting the circuit board of the module and the surface of the annular metal member on the module housing side of the antenna,
A portable transceiver comprising: a back cover for sealing an opening of the small-diameter cylindrical module storage portion in a liquid-tight manner. The portable transceiver according to claim 1, wherein the glass is fitted on an inner peripheral surface side of the antenna of the annular metal member via a packing. The portable transceiver according to claim 1 or 2, wherein the antenna of the annular metal member is fitted into a large-diameter cylindrical opening of the main body case via a seal ring.

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