JPH119852A - Waterproof structure of terminal in electric appliance - Google Patents
Waterproof structure of terminal in electric applianceInfo
- Publication number
- JPH119852A JPH119852A JP16831297A JP16831297A JPH119852A JP H119852 A JPH119852 A JP H119852A JP 16831297 A JP16831297 A JP 16831297A JP 16831297 A JP16831297 A JP 16831297A JP H119852 A JPH119852 A JP H119852A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- terminal
- inner peripheral
- electric device
- current
- 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.)
- Withdrawn
Links
Landscapes
- Dry Shavers And Clippers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電気かみそりのよ
うな電気機器、特に通電端子がケースから外部に突出
し、その通電端子のケースからの突出部分を弾性を有す
るＯリングにより密着して防水を行うようにした電気機
器における通電端子の防水構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric device such as an electric razor, in particular, a current-carrying terminal protruding from a case to the outside, and a protruding portion of the current-carrying terminal protruding from the case is tightly adhered to by an O-ring having elasticity to waterproof. The present invention relates to a waterproof structure of a current-carrying terminal in an electric device to be performed.
【０００２】[0002]
【従来の技術】従来から防水式の電気機器、例えば防水
式の電気かみそりにおいて、充電器と接触させるための
通電端子２を電気機器のケースの下カバー部１ｂに設け
たＯリング３に挿通して外部に突出させ、Ｏリング３を
通電端子２に密着することで通電端子２のケースの下カ
バー部１ｂの挿通部分の防水を行っている。2. Description of the Related Art Conventionally, in a waterproof type electric device, for example, a waterproof type electric shaver, an energizing terminal 2 for making contact with a charger is inserted into an O-ring 3 provided on a lower cover 1b of a case of the electric device. The O-ring 3 is brought into close contact with the energizing terminal 2 to waterproof the portion where the lower cover 1b of the case of the energizing terminal 2 is inserted.
【０００３】図４、図５には従来の一例が示してあり、
図４に示すように、下カバー部１ｂには複数のゴム製の
Ｏリング３が固定してある。そして、図５に示すよう
に、各Ｏリング３にそれぞれ通電端子２が挿入され、Ｏ
リング３の内周部が通電端子２に弾接して密着してい
る。FIGS. 4 and 5 show a conventional example.
As shown in FIG. 4, a plurality of rubber O-rings 3 are fixed to the lower cover 1b. Then, as shown in FIG. 5, the energizing terminals 2 are inserted into the respective O-rings 3 and
The inner peripheral portion of the ring 3 is in elastic contact with and close to the energizing terminal 2.
【０００４】[0004]
【発明が解決しようとする課題】上記のような従来例に
あっては、下カバー部１ｂに設けたゴム製のＯリング３
は、下カバー部１ｂと固定されているため、自由度が小
さく、通電端子２の軸方向（垂直方向）の挿入位置がず
れると、ゴム製のＯリング３のつぶし代が均一になら
ず、つぶし代の小さな部分から水漏れが発生するという
問題があった。In the above conventional example, a rubber O-ring 3 provided on the lower cover 1b is provided.
Is fixed to the lower cover portion 1b, so that the degree of freedom is small, and if the insertion position of the energizing terminal 2 in the axial direction (vertical direction) is displaced, the pressing margin of the rubber O-ring 3 is not uniform, There was a problem that water leaks from a small part of the crushing margin.
【０００５】本発明は上記の従来例の問題点に鑑みて発
明したものであって、通電端子の軸方向の挿入位置がず
れていてもＯリングのつぶし代が均一となって確実な防
水ができる電気機器における通電端子の防水構造を提供
することを課題とするものである。The present invention has been made in view of the above-mentioned problems of the prior art. Even if the insertion position of the energizing terminal in the axial direction is shifted, the O-ring crushing portion is uniform and reliable waterproofing is achieved. It is an object of the present invention to provide a waterproof structure for a current-carrying terminal in an electrical device that can be provided.
【０００６】[0006]
【課題を解決するための手段】上記課題を達成するため
に、本発明の電気機器における通電端子の防水構造は、
防水式の電気機器のケース１の通電端子２の突出部分に
弾性を有するＯリング３を設け、該Ｏリング３に電気機
器の通電端子２を貫通させると共にＯリング３の内周部
を通電端子２に密着し、Ｏリング３の内周部３ａと外周
部３ｂとの間を肉厚の薄い薄膜部３ｃとして成ることを
特徴とするものである。このような構成とすることで、
通電端子２の軸方向の挿入位置がずれてもＯリング３の
内周部３ａと外周部３ｂとの間の肉厚の薄い薄膜部３ｃ
の各部が伸び縮みして内周部３ａのつぶし代が常に均一
になる位置を確保できるようになっている。Means for Solving the Problems To achieve the above object, a waterproof structure of a current-carrying terminal in an electric device according to the present invention comprises:
An O-ring 3 having elasticity is provided on a protruding portion of the energizing terminal 2 of the case 1 of the waterproof electric device, and the O-ring 3 is made to penetrate the energizing terminal 2 of the electric device, and the inner peripheral portion of the O-ring 3 is connected to the energizing terminal. 2 and a thin film portion 3c having a small thickness between the inner peripheral portion 3a and the outer peripheral portion 3b of the O-ring 3. With such a configuration,
Even when the insertion position of the energizing terminal 2 in the axial direction is shifted, the thin film portion 3c having a small thickness between the inner peripheral portion 3a and the outer peripheral portion 3b of the O-ring 3
Are expanded and contracted so that a position where the inner peripheral portion 3a can always be uniformly pressed can be secured.
【０００７】[0007]
【発明の実施の形態】本発明を以下添付図面に示す実施
形態に基づいて説明する。防水構造の電気かみそりのよ
うな電気機器のケース１は本体ケース部１ａの下部に下
カバー部１ｂを取付けて構成してあり、本体ケース部１
ａ内にはモータ（図示せず）、回路部品（図示せず）等
を装備したシャーシ４が内装されるようになっている。
該シャーシ４の下面から充電器と接触させるための通電
端子２が突出している。下カバー部１ｂは本体ケース部
１ａの下端部に水密的に取付けられるものである。この
下カバー部１ｂに複数のゴム製のＯリング３が一体に固
着してある。下カバー部１ｂにはゴム製のＯリング３を
一体に固着するに当たっては、下カバー部１ｂを成形す
る際にゴム製のＯリング３を一体となるように同時に成
形するきわゆる２色成形により形成するものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings. A case 1 of an electric device such as an electric razor having a waterproof structure is configured by attaching a lower cover 1b to a lower portion of a main body case 1a.
A chassis 4 equipped with a motor (not shown), circuit components (not shown), and the like is provided inside a.
An energizing terminal 2 for making contact with the charger protrudes from the lower surface of the chassis 4. The lower cover 1b is attached to the lower end of the main body case 1a in a watertight manner. A plurality of rubber O-rings 3 are integrally fixed to the lower cover 1b. When the rubber O-ring 3 is integrally fixed to the lower cover 1b, the rubber O-ring 3 is molded simultaneously and integrally with the lower cover 1b by molding in two colors. To form.
【０００８】ここで、本発明においてはゴム製のＯリン
グ３は図２に示すように、肉厚の厚い内周部３ａと肉厚
の厚い外周部３ｂとを肉厚の薄い薄膜部３ｃで一体に連
結形成したものである。そして、通電端子２は下カバー
部１ｂから上記Ｏリング３を挿通して外部に突出してお
り、Ｏリング３の肉厚の厚い内周部３ａが通電端子２に
弾性的に密着して通電端子２の下カバー部１ｂからの突
出部分の防水を図っている。In the present invention, as shown in FIG. 2, the rubber O-ring 3 has a thick inner peripheral portion 3a and a thick outer peripheral portion 3b formed by a thin thin film portion 3c. They are integrally connected and formed. The energizing terminal 2 protrudes outside through the O-ring 3 from the lower cover portion 1b, and the thick inner peripheral portion 3a of the O-ring 3 elastically adheres to the energizing terminal 2 so as to be energized. 2 is designed to waterproof the protruding portion from the lower cover portion 1b.
【０００９】しかして、上記のようにゴム製のＯリング
３に通電端子２を挿入した場合、通電端子２が軸方向
（垂直方向）にずれを生じて挿入されても、図３におい
てＯリング３の薄膜部３ｃのイ部分が伸び、薄膜部３ｃ
のロ部分が縮むことによって、厚みの厚い内周部３ａが
通電端子に対して、通電端子２のずれによるつぶし代の
不均一化を生むことなく密着固定して確実に通電端子２
の下カバー部１ｂからの突出部分の防水がなされるので
ある。However, when the current-carrying terminal 2 is inserted into the rubber O-ring 3 as described above, even if the current-carrying terminal 2 is displaced in the axial direction (vertical direction), the O-ring shown in FIG. A portion of the thin film portion 3c of FIG.
The inner portion 3a having a large thickness is tightly fixed to the energizing terminal without causing unevenness of the crushing margin due to the displacement of the energizing terminal 2, thereby ensuring the energization of the energizing terminal 2.
The portion protruding from the lower cover portion 1b is waterproofed.
【００１０】なお、実施形態においては電気機器として
防水式の往復式電気かみそりのような防水式電気かみそ
りの例を示したが、必ずしもこれにのみ限定されず、他
の種々の通電端子を有する電気機器にも本発明が適用で
きるのは勿論である。In the embodiment, an example of a waterproof type electric shaver such as a waterproof type reciprocating type electric shaver is shown as an electric device. However, the present invention is not necessarily limited to this, and an electric device having various other energized terminals may be used. Needless to say, the present invention can be applied to equipment.
【００１１】[0011]
【発明の効果】本発明にあっては、上述のように、防水
式の電気機器のケースの通電端子の突出部分に弾性を有
するＯリングを設け、該Ｏリングに電気機器の通電端子
を貫通させると共にＯリングの内周部を通電端子に密着
し、Ｏリングの内周部と外周部との間を肉厚の薄い薄膜
部としてあるので、通電端子の軸方向の挿入位置がずれ
てもＯリングの内周部と外周部との間の肉厚の薄い薄膜
部の各部が伸び縮みして内周部のつぶし代が常に均一に
なる位置を確保でき、防水不良を無くして確実な防水が
できるものである。According to the present invention, as described above, an O-ring having elasticity is provided at a protruding portion of a current-carrying terminal of a case of a waterproof electric device, and the current-carrying terminal of the electric device is penetrated through the O-ring. At the same time, the inner peripheral portion of the O-ring is brought into close contact with the energizing terminal, and the portion between the inner peripheral portion and the outer peripheral portion of the O-ring is formed as a thin thin film portion. The thin-walled thin-film portion between the inner and outer peripheral portions of the O-ring expands and contracts, ensuring a position where the inner peripheral portion can always be crushed. Can be done.
【図１】本発明の分解斜視図である。FIG. 1 is an exploded perspective view of the present invention.
【図２】同上のＯリングを示し、（ａ）は平面図であ
り、（ｂ）は（ａ）のＸーＸ線の断面図である。2 (a) is a plan view, and FIG. 2 (b) is a sectional view taken along line XX of FIG. 2 (a).
【図３】同上の通電端子のＯリングへの軸方向の挿入位
置がずれた際に薄膜部が伸縮した状態を示す説明図であ
る。FIG. 3 is an explanatory view showing a state in which a thin film portion expands and contracts when an insertion position of an energizing terminal into an O-ring in the axial direction is shifted.
【図４】従来例を示し、（ａ）は下カバー部の平面図で
あり、（ｂ）は（ａ）のＹーＹ線の断面図である。4A and 4B show a conventional example, in which FIG. 4A is a plan view of a lower cover portion, and FIG. 4B is a cross-sectional view taken along line YY in FIG.
【図５】従来例における通電端子のＯリングへの挿入部
分を示す拡大断面図である。FIG. 5 is an enlarged cross-sectional view showing a portion where a current-carrying terminal is inserted into an O-ring in a conventional example.
１ 電気機器のケース ２ 通電端子 ３ Ｏリング ３ａ 内周部 ３ｂ 外周部 ３ｃ 薄膜部 DESCRIPTION OF SYMBOLS 1 Electric equipment case 2 Current supply terminal 3 O-ring 3a Inner peripheral part 3b Outer peripheral part 3c Thin film part
Claims (1)
突出部分に弾性を有するＯリングを設け、該Ｏリングに
電気機器の通電端子を貫通させると共にＯリングの内周
部を通電端子に密着し、Ｏリングの内周部と外周部との
間を肉厚の薄い薄膜部として成ることを特徴とする電気
機器における通電端子の防水構造。1. An O-ring having elasticity is provided at a protruding portion of a current-carrying terminal of a case of a waterproof electric device, and the current-carrying terminal of the electric device is penetrated through the O-ring. A waterproof structure for a current-carrying terminal in an electric device, wherein the thin film portion is formed so as to be in close contact with an inner peripheral portion and an outer peripheral portion of the O-ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16831297A JPH119852A (en) | 1997-06-25 | 1997-06-25 | Waterproof structure of terminal in electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16831297A JPH119852A (en) | 1997-06-25 | 1997-06-25 | Waterproof structure of terminal in electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH119852A true JPH119852A (en) | 1999-01-19 |
Family
ID=15865704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16831297A Withdrawn JPH119852A (en) | 1997-06-25 | 1997-06-25 | Waterproof structure of terminal in electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH119852A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7794276B2 (en) | 2006-07-21 | 2010-09-14 | Matsushita Electric Works, Ltd. | Insulating structure between conductive members of electric device |
-
1997
- 1997-06-25 JP JP16831297A patent/JPH119852A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7794276B2 (en) | 2006-07-21 | 2010-09-14 | Matsushita Electric Works, Ltd. | Insulating structure between conductive members of electric device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20040907 |