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JP2004112565A - Radio waterproof structure - Google Patents

Radio waterproof structure Download PDF

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Publication number
JP2004112565A
JP2004112565A JP2002274326A JP2002274326A JP2004112565A JP 2004112565 A JP2004112565 A JP 2004112565A JP 2002274326 A JP2002274326 A JP 2002274326A JP 2002274326 A JP2002274326 A JP 2002274326A JP 2004112565 A JP2004112565 A JP 2004112565A
Authority
JP
Japan
Prior art keywords
water
microphone
wireless device
waterproof structure
repellent sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002274326A
Other languages
Japanese (ja)
Inventor
Kazuhiko Fujimoto
藤本 和彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kokusai Denki Electric Inc
Original Assignee
Hitachi Kokusai Electric Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Kokusai Electric Inc filed Critical Hitachi Kokusai Electric Inc
Priority to JP2002274326A priority Critical patent/JP2004112565A/en
Publication of JP2004112565A publication Critical patent/JP2004112565A/en
Pending legal-status Critical Current

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Abstract

【課題】従来の防水構造では雨水程度であれば、マイク前面に設けた撥水性シートにより水が入ることはないが、誤って無線機水溜まり等に落下させてしまった場合には撥水性のシートを水が通過しマイク5を破損させるばかりか、マイク5の内部を経由して無線機本体回路部へ水が流れ込む恐れもあった。
【解決手段】本発明は上記課題を解決するため、撥水性シートとマイクの間に中央にマイク入力用の穴を設けた水膨張性シートを挟み込むように構成したものであり、撥水性シート3を通過した水滴を吸収した際に、膨張しマイク入力用の穴が閉じるようにするもの。
【選択図】   図1
A water-repellent sheet provided on the front of a microphone prevents water from entering if it is about rainwater with a conventional waterproof structure, but a water-repellent sheet if it is accidentally dropped into a puddle of radio equipment. Not only damages the microphone 5 by passing through it, but also causes the water to flow into the wireless device main body via the inside of the microphone 5.
The present invention solves the above-mentioned problem by sandwiching a water-expandable sheet provided with a microphone input hole at the center between a water-repellent sheet and a microphone. When a water droplet that has passed through is absorbed, it expands and closes the microphone input hole.
[Selection diagram] Fig. 1

Description

【0001】
【発明の属する技術分野】
本発明は携帯無線機に実装する内部マイクの防水構造に関するものである。
【0002】
【従来の技術】
従来のマイク部の防水構造例について図4、図5を参照して説明する。無線機1の前面カバー2はボス2bの中央にマイク入力用の貫通穴2aを有し、マイク5はゴム製ホルダ6を介してボス2b部に装着されている。ボス2b部の底面には撥水性のシート3が貼り付けられており、マイク5の前面の空間2cと穴2aは音がロスなく通過するが雨水は内部の空間2cに浸入しないように構成されている。
【0003】
【発明が解決しようとする課題】
従来の防水構造では雨水程度であれば、空間2cに水が入ることはないが、誤って無線機を水溜まり等に落下させてしまった場合には撥水性のシート3を水が通過し空間2cに水が浸入しマイク5を破損させるばかりか、マイク5の内部を経由して無線機本体回路部へ水が流れ込む恐れもあった。
【0004】
【課題を解決するための手段】
本発明は上記課題を解決するため、空間2c部にマイク入力用の穴を中央に設けた水膨張性シートを挟み込むことにより、撥水性シート3を通過した水滴を吸収した際に、穴が閉じるようにするものである。
【0005】
【発明の実施の形態】
本発明の一実施例であるマイク部の防水構造について図1〜図4を参照して説明する。図1は縦断面図、図2はマイク取付け部の分解斜視図、図3は前面カバーの斜視図を示す。無線機1の前面カバー2はボス2bの中央にマイク入力用の貫通穴2aを有し、マイク5はゴム製ホルダ6を介してボス2b部に装着されている。ボス2b部の底面には撥水性のシート3が貼り付けられており、マイク5の前面の空間2c部には中央に穴4aを有する水膨張性シール材4が挟み込まれている。水膨張性シール材4は、撥水性シート3を通過した水滴を吸収し、膨張する際に中央に設けた穴4aが閉じるように構成されている。
【0006】
【発明の効果】
本発明によれば、無線機を誤って水溜まりに落下させた場合でもマイクを破損させることがなく、また本体内部回路への浸水も防止することができる。また、水膨張性シール材は水を含めば含むほど膨張しシール性が上がることから、水圧が加わる場合においても内部への浸水を防止することができる。更には無線機を乾燥させると同時に水膨張性シール材を乾燥させることができるため、閉じた穴が元どおりに開き反永久的に繰返し復元させることができるため、使い勝手のよい無線機を提供することができる。
【図面の簡単な説明】
【図1】本発明の一実施例である無線機の縦断面図。
【図2】本発明の一実施例である無線機の分解斜視図。
【図3】本発明の一実施例である無線機の前面カバー斜視図。
【図4】本発明の一実施例である無線機の斜視図。
【図5】従来の一例である無線機の縦断面図。
【符号の説明】
1:無線機、2:前面カバー、3:シート、4:膨張性シール材、5:マイク、6:ホルダ、2a:穴、2b:ボス、2c:空間、4a:穴。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a waterproof structure of an internal microphone mounted on a portable wireless device.
[0002]
[Prior art]
An example of a conventional waterproof structure of a microphone unit will be described with reference to FIGS. The front cover 2 of the wireless device 1 has a through hole 2a for microphone input at the center of the boss 2b, and the microphone 5 is mounted on the boss 2b via a rubber holder 6. A water-repellent sheet 3 is adhered to the bottom surface of the boss 2b, and the space 2c and the hole 2a in front of the microphone 5 pass without loss of sound, but rainwater does not enter the internal space 2c. ing.
[0003]
[Problems to be solved by the invention]
In the conventional waterproof structure, if it is about rainwater, no water will enter the space 2c. However, if the radio device is accidentally dropped into a puddle or the like, water passes through the water-repellent sheet 3 and the space 2c In addition to the intrusion of water into the microphone 5 and damage to the microphone 5, there is also a risk that water may flow into the circuit of the wireless device via the inside of the microphone 5.
[0004]
[Means for Solving the Problems]
In order to solve the above problem, the present invention sandwiches a water-expandable sheet provided with a hole for microphone input in the center of the space 2c so that the hole closes when water droplets passing through the water-repellent sheet 3 are absorbed. Is to do so.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
A waterproof structure of a microphone unit according to an embodiment of the present invention will be described with reference to FIGS. 1 is a longitudinal sectional view, FIG. 2 is an exploded perspective view of a microphone mounting portion, and FIG. 3 is a perspective view of a front cover. The front cover 2 of the wireless device 1 has a through hole 2a for microphone input at the center of the boss 2b, and the microphone 5 is mounted on the boss 2b via a rubber holder 6. A water-repellent sheet 3 is adhered to the bottom surface of the boss 2b, and a water-swellable sealing material 4 having a hole 4a in the center is sandwiched in the space 2c in front of the microphone 5. The water-swellable sealing material 4 is configured so as to absorb water droplets that have passed through the water-repellent sheet 3 and to close the hole 4a provided at the center when expanding.
[0006]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, even if a radio | wireless apparatus falls into a water pool by mistake, a microphone is not damaged and it can also prevent infiltration into the internal circuit of a main body. Further, since the water-swellable sealing material expands and seals as much as it contains water, it is possible to prevent water from intruding into the inside even when water pressure is applied. Furthermore, since the water-swellable sealing material can be dried at the same time as the wireless device is dried, a closed hole is opened as before and the anti-permanent repetition can be restored, thereby providing an easy-to-use wireless device. be able to.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a wireless device according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of a wireless device according to an embodiment of the present invention.
FIG. 3 is a perspective view of a front cover of the wireless device according to the embodiment of the present invention;
FIG. 4 is a perspective view of a wireless device according to an embodiment of the present invention.
FIG. 5 is a longitudinal sectional view of a wireless device as an example of the related art.
[Explanation of symbols]
1: wireless device, 2: front cover, 3: sheet, 4: expandable sealing material, 5: microphone, 6: holder, 2a: hole, 2b: boss, 2c: space, 4a: hole.

Claims (1)

無線機において、前面カバーとマイク取付け面との間に中央に小穴を有する水膨張性シール材料を挟み込んだことを特徴とする無線機の防水構造。A waterproof structure for a wireless device, wherein a water-swellable sealing material having a small hole in the center is interposed between the front cover and the microphone mounting surface.
JP2002274326A 2002-09-20 2002-09-20 Radio waterproof structure Pending JP2004112565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002274326A JP2004112565A (en) 2002-09-20 2002-09-20 Radio waterproof structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002274326A JP2004112565A (en) 2002-09-20 2002-09-20 Radio waterproof structure

Publications (1)

Publication Number Publication Date
JP2004112565A true JP2004112565A (en) 2004-04-08

Family

ID=32270832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002274326A Pending JP2004112565A (en) 2002-09-20 2002-09-20 Radio waterproof structure

Country Status (1)

Country Link
JP (1) JP2004112565A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1703764A2 (en) 2005-03-18 2006-09-20 Casio Hitachi Mobile Communications Co., Ltd. Mounting structure for an electroacoustic transducer
KR200477164Y1 (en) * 2014-11-10 2015-05-14 (주)엠에스전자부품 Waterproof structure of micro speaker with improved waterproof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1703764A2 (en) 2005-03-18 2006-09-20 Casio Hitachi Mobile Communications Co., Ltd. Mounting structure for an electroacoustic transducer
US7561684B2 (en) 2005-03-18 2009-07-14 Casio Hitachi Mobile Communications Co., Ltd. Mounting structure for an electroacoustic transducer
KR200477164Y1 (en) * 2014-11-10 2015-05-14 (주)엠에스전자부품 Waterproof structure of micro speaker with improved waterproof

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