JPS5840758Y2 - Vent structure of small motor - Google Patents
Vent structure of small motorInfo
- Publication number
- JPS5840758Y2 JPS5840758Y2 JP1978163159U JP16315978U JPS5840758Y2 JP S5840758 Y2 JPS5840758 Y2 JP S5840758Y2 JP 1978163159 U JP1978163159 U JP 1978163159U JP 16315978 U JP16315978 U JP 16315978U JP S5840758 Y2 JPS5840758 Y2 JP S5840758Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- motor
- yoke
- terminal
- protruding
- 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.)
- Expired
Links
Landscapes
- Motor Or Generator Frames (AREA)
Description
【考案の詳細な説明】
本考案は、小型モータ、殊にウィンドウオッシャ用モー
タにおける通気孔の構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure of a ventilation hole in a small motor, particularly a motor for a window washer.
該通気孔はモータ内部の温度変化によって生じる呼吸作
用により、モータ内部に吸入された空気中の水分がモー
タ内部の部品表面において結露することを防止するため
のものでちる。The vent holes are provided to prevent moisture in the air sucked into the motor from condensing on the surfaces of parts inside the motor due to breathing action caused by temperature changes inside the motor.
従来、ウィンドウオッシャ用モータの通気孔１′は、第
１図に図示する如きの構造であって、フレームおよびケ
ーシングの一部に軸４と直角方向ｉ／ｃ穿設されている
ため、通気孔および水抜き孔としての機能を果している
が、ウオッシャ等ではタンク給水時や実車走行時に被水
する場合があり、該通気孔１匍有する小型モータが被水
すると、モータ内部に直接水が浸入し、軸受は部の腐食
やブラシ部の異状損′耗等の不具合発生の原因となった
りした。Conventionally, the ventilation hole 1' of a window washer motor has a structure as shown in FIG. However, if a small motor with one vent hole is exposed to water, water may directly enter the inside of the motor. However, bearings can cause problems such as corrosion of parts and abnormal wear and tear of brush parts.
本考案は、上記の不具合を解消するために、小型モータ
が被水しても、モータの内部に水が浸入しにくい構造の
通気孔を、合成樹脂等から成るターミナルガイド成形時
に一体的に設けるものである。In order to eliminate the above-mentioned problems, the present invention provides a ventilation hole that prevents water from entering the inside of the motor even if the small motor is exposed to water, when molding the terminal guide made of synthetic resin etc. It is something.
以下、本考案に係る小型モータの通気孔の構造の１実施
例について、図面にもとづき説明する。Hereinafter, one embodiment of the structure of a ventilation hole of a small motor according to the present invention will be described based on the drawings.
第２図に釦ける小型モータは、ターミナルガイド１、ポ
ンプカバー２、ヨーク３によって外観構成されて成るも
のである。The small motor shown in FIG. 2 is externally constituted by a terminal guide 1, a pump cover 2, and a yoke 3.
前記ターミナルガイド１において、１′が合成樹脂等か
ら成るターミナルガイド成形時に一体的に設けた通気孔
である。In the terminal guide 1, reference numeral 1' denotes a ventilation hole that is integrally formed during molding of the terminal guide made of synthetic resin or the like.
第３図の拡大断面図にかいて、ターミナルガイド１は円
筒部８、接続部９および端子部１０の一体成形品であり
、円筒部８はマグネット５と当接し、端子部１０はブラ
シ６が接続される端子７を固着し、接続部９は両部８，
１００中間にありヨーク３の切欠き３２に挿入され切欠
き底部３１により仕切られて通気孔１′を形成する孔１
４を有する。As shown in the enlarged cross-sectional view of FIG. 3, the terminal guide 1 is an integrally molded product consisting of a cylindrical part 8, a connecting part 9, and a terminal part 10. The terminal 7 to be connected is fixed, and the connecting part 9 is connected to both parts 8,
100, a hole 1 inserted into the notch 32 of the yoke 3 and partitioned by the notch bottom 31 to form a ventilation hole 1'.
It has 4.
１４は中心軸４に対して略平行になるようにターミナル
ガイド１に設けられた孔で、１１が絞孔１４の低面部で
両端が外気に通じている。Reference numeral 14 indicates a hole provided in the terminal guide 1 so as to be substantially parallel to the central axis 4, and reference numeral 11 indicates a lower surface portion of the throttle hole 14, and both ends communicate with the outside air.
孔１４は、Ａ部、Ｂ部によって構成され、中央部に段差
１２を有し、Ａ部はＢ部に対して略２倍の大きさを有す
る３孔構造である。The hole 14 is composed of an A part and a B part, and has a step 12 in the center, and has a three-hole structure in which the A part is approximately twice the size of the B part.
孔１４のＡ部はヨーク３によって２分割され、内部のＡ
１部、外部のＡ２部となる。The A section of the hole 14 is divided into two by the yoke 3, and the internal A section is divided into two by the yoke 3.
Part 1 will be the external part A2.
これによって、孔１４のＡ１部は、モータ内部のマグネ
ット部５に通じる内部孔として、またＡ２部とＢ部は、
該内部孔であるＡ１部と外気を通じる外部孔とした構造
となる。As a result, the A1 part of the hole 14 serves as an internal hole communicating with the magnet part 5 inside the motor, and the A2 part and B part
It has a structure in which the A1 portion, which is the internal hole, and the external hole communicate with the outside air.
以上により明らかなごとく、孔１４は外部孔であるＢ部
とＡ２部は底面部１１と同一にして通じ、外部孔に通じ
る内部孔Ａ１部はヨーク３の切欠き底部を低面部とした
２段構造の通気孔である。As is clear from the above, the hole 14 has external holes B and A2 that communicate with the bottom surface 11, and the internal hole A1 that communicates with the external hole has two stages with the notch bottom of the yoke 3 as the lower surface. There are ventilation holes in the structure.
また合成樹脂等より成るターミナルガイド１に設けた通
気孔１′は、第４図に図示する如く、内部が内向きに下
降する形状の溝１３をマグネット５との突合せ部分に有
するため、モータの内部に結露又は浸入した水は、図中
点線矢印方向に流れ排出される。In addition, the ventilation hole 1' provided in the terminal guide 1 made of synthetic resin or the like has a groove 13 with an inwardly downward shape at the part where it butts against the magnet 5, as shown in FIG. Water that has condensed or entered inside flows in the direction of the dotted arrow in the figure and is discharged.
以上の如く、本考案に係る小型モータ通気孔１′は、迷
路状に形成されていて、切欠き底部３１によって仕切ら
れた孔Ａ ｔ Ａ ２ ＞よびＢが略Ａ１＝Ｂ＋Ａ２と
なっており、Ａ２．Ｂは***であるので、小型モータの
正規取付は状態（ターミナル下向き）において、小型モ
ータの外部が被水しても内部に段差を有する通気孔１′
を通じてモータ内部に水が浸入することを防止出来る。As described above, the small motor ventilation hole 1' according to the present invention is formed in a labyrinth shape, and the holes A t A 2 > and B, which are partitioned by the notch bottom 31, are approximately A1 = B + A2, A2. B is a small hole, so when the small motor is normally installed (with the terminal facing downward), even if the outside of the small motor is exposed to water, the ventilation hole 1' has a step inside.
Water can be prevented from entering the motor through the
仮りに水がモータ内部に浸入したとしても、Ｖ字状を成
す内部構造部は、短時間の内に水を外部に排出させるこ
とができる。Even if water were to enter the motor, the V-shaped internal structure can drain the water to the outside within a short period of time.
また、縦取付け（ターミナル下向き）の状態に釦いても
、Ａ２から進入した水はＢから抜は落ちるようになって
いる。Also, even if the button is installed vertically (terminal facing downward), water that enters from A2 will drain out from B.
また空気中の水分がモータの内部で結露した場合であっ
ても上記同様排出されるため、モータ内部の軸受は部の
腐食やブラシ部の異状損耗等の不具合を解消できる。Further, even if moisture in the air condenses inside the motor, it is discharged in the same manner as described above, so that problems such as corrosion of the bearing inside the motor and abnormal wear and tear of the brush portion can be eliminated.
また、この通気孔１′は、合成樹脂等から威るターミナ
ルガイド１の成形時に一体的に設けたものであるため、
後加工等の必要もなく、従来のものに比べ価格的に高価
となることもないものであり、実用上非常に有益なもの
である。In addition, this vent hole 1' was provided integrally during the molding of the terminal guide 1 made of synthetic resin, etc.
There is no need for post-processing, and it is not expensive compared to conventional products, making it very useful in practice.
第１図は、従来における小型モータの縦断面図、第２図
は、本考案実施の１例を示す小型モータの縦断側面図、
第３図は、同じく一部拡大断面図、第４図Ａは、第２図
においてＤ−Ｄ線に沿う拡大断面図同じくＢは要部の斜
視図である。
図中の符号はそれぞれ下記部材を示す。
１・・・ターミナルガイド、１′・・・通気孔、１１・
・・低面部、１２・・・段差、１３・・・溝、１４・・
・孔、２・・・ポンプカバー、３・・・ヨーク、３１・
・・切欠き底面、４・・・中心軸、５・・・マグネット
部、７・・・端子、８・・・円筒部、９・・・接続部、
１０・・・端子部、３２・・・切欠き、Ａ部・・・Ｂ部
の略２倍を有する孔、Ａ１部・・・内部孔、Ａ２部；・
・外部孔、Ｂ部・・・外部孔。FIG. 1 is a longitudinal sectional view of a conventional small motor, and FIG. 2 is a longitudinal sectional side view of a small motor showing an example of the implementation of the present invention.
3 is a partially enlarged sectional view, and FIG. 4A is an enlarged sectional view taken along line DD in FIG. 2. Similarly, FIG. 4B is a perspective view of a main part. The symbols in the drawings indicate the following members, respectively. 1...Terminal guide, 1'...Vent hole, 11.
...Low surface part, 12...Step, 13...Groove, 14...
・Hole, 2...Pump cover, 3...Yoke, 31・
...Notch bottom surface, 4...Center axis, 5...Magnet part, 7...Terminal, 8...Cylindrical part, 9...Connection part,
10... Terminal part, 32... Notch, A part... Hole having approximately twice the size of B part, A1 part... Internal hole, A2 part;
・External hole, part B...External hole.
Claims (1)
グネット５に当接する円筒部８と、該円筒部８内に突出
するブラシ６が接続された端子７を固着し前記ヨーク３
外周に突出する端子部１０と、前記ヨーク３の切欠き３
２に位置しヨーク３内周に挿入された円筒部８およびヨ
ーク３外周に突出した端子部１０を接続する接続部９と
の三者８．９，１０を一体成形したターミナルガイド１
において、ターミナルガイド１０円楠部８、接続部９、
端子部１０に渡って軸方向に貫通する孔１４を穿設し、
絞孔１４は断面積が小さく、モータ外部と連通ずる外部
孔Ｂ、＞よび絞孔Ｂより断面積が大きくモータ内部と外
部に位置する孔Ａで構成され、さらに、ターミナルガイ
ド１のヨーク３装着時に孔Ａがモータ内部の内部孔ＡＩ
と外部孔Ａ２に分離されるとともにヨーク３の切欠き底
部３１先端には空隙を備え、かつ、前記内部孔Ａ１とモ
ータ内部を周方向に連通ずる溝１３を円筒部８内周に形
成したことを特徴とする小型モータの通気孔構造。A cylindrical part 8 is inserted into the inner periphery of the yoke 3 to which the magnet 5 is fixed and comes into contact with the magnet 5, and a terminal 7 to which a brush 6 protruding into the cylindrical part 8 is connected is fixed to the yoke 3.
A terminal portion 10 protruding to the outer periphery and a notch 3 of the yoke 3
Terminal guide 1 integrally molded with three parts 8, 9 and 10, including a cylindrical part 8 located at 2 and inserted into the inner periphery of the yoke 3, and a connecting part 9 that connects the terminal part 10 protruding from the outer periphery of the yoke 3.
In, the terminal guide 10 yen Kusunoki part 8, the connection part 9,
A hole 14 is bored through the terminal portion 10 in the axial direction,
The throttle hole 14 consists of an external hole B that has a small cross-sectional area and communicates with the outside of the motor, and a hole A that has a larger cross-sectional area than the throttle hole B and is located inside and outside the motor. Sometimes hole A is internal hole AI inside the motor.
A groove 13 is formed on the inner periphery of the cylindrical portion 8, which is separated into an external hole A2 and has a gap at the tip of the notch bottom 31 of the yoke 3, and communicates the internal hole A1 and the inside of the motor in the circumferential direction. A vent structure for a small motor featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978163159U JPS5840758Y2 (en) | 1978-11-29 | 1978-11-29 | Vent structure of small motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978163159U JPS5840758Y2 (en) | 1978-11-29 | 1978-11-29 | Vent structure of small motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5582059U JPS5582059U (en) | 1980-06-06 |
| JPS5840758Y2 true JPS5840758Y2 (en) | 1983-09-13 |
Family
ID=29159546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978163159U Expired JPS5840758Y2 (en) | 1978-11-29 | 1978-11-29 | Vent structure of small motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5840758Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS529707B2 (en) * | 1971-08-13 | 1977-03-17 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS529707U (en) * | 1975-07-09 | 1977-01-24 |
-
1978
- 1978-11-29 JP JP1978163159U patent/JPS5840758Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS529707B2 (en) * | 1971-08-13 | 1977-03-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5582059U (en) | 1980-06-06 |
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