JPH0242053Y2 - - Google Patents
Info
- Publication number
- JPH0242053Y2 JPH0242053Y2 JP4387084U JP4387084U JPH0242053Y2 JP H0242053 Y2 JPH0242053 Y2 JP H0242053Y2 JP 4387084 U JP4387084 U JP 4387084U JP 4387084 U JP4387084 U JP 4387084U JP H0242053 Y2 JPH0242053 Y2 JP H0242053Y2
- Authority
- JP
- Japan
- Prior art keywords
- motor
- magnet
- motor frame
- small
- dustproof cover
- 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
- 230000000694 effects Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Frames (AREA)
- Dc Machiner (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は音響機器，映像機器等に用いられる直
流小型モータに関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a small DC motor used in audio equipment, video equipment, etc.
従来例の構成とその問題点
近年、直流小型モータの価格低減を行うため
に、部品点数の削減が要望されている。Conventional configuration and its problems In recent years, in order to reduce the price of small DC motors, there has been a demand for a reduction in the number of parts.
以下、図面を参照しながら従来の直流小型モー
タについて説明する。第１図は従来の直流小型モ
ータの断面図であり、１はモータフレームで、天
面には複数の取付穴２が同心円上に配置されてい
る。３はブラケツト、４はモータフレーム１およ
びブラケツト３に設けた軸受５にて回転自在に支
持された回転軸で電機子６が取付けられている。
７はモータフレーム１の内側に装備され、取付穴
２からの異物の浸入を防ぐ防塵カバー、８はマグ
ネツトである。 Hereinafter, a conventional small DC motor will be explained with reference to the drawings. FIG. 1 is a sectional view of a conventional small DC motor. Reference numeral 1 denotes a motor frame, and a plurality of mounting holes 2 are arranged concentrically on the top surface of the motor frame. 3 is a bracket; 4 is a rotating shaft rotatably supported by a motor frame 1 and a bearing 5 provided on the bracket 3; and an armature 6 is attached thereto.
Reference numeral 7 designates a dustproof cover that is installed inside the motor frame 1 to prevent foreign matter from entering through the mounting hole 2, and 8 designates a magnet.
以上のように従来の直流小型モータは構成され
ている。しかしながら、上記のような構成におい
ては、防塵するには、特別な防塵カバー７を必要
とし、部品点数が多くコスト高となる欠点があつ
た
考案の目的
本考案の目的は防塵カバーを使用することなく
防塵を行なうことである。 The conventional small DC motor is configured as described above. However, in the above configuration, a special dustproof cover 7 is required for dustproofing, which has the drawback of requiring a large number of parts and increasing costs.The purpose of the present invention is to use a dustproof cover. It is important to carry out dustproofing without any problems.
考案の構成
そこで、本考案は、マグネツトに凸部を設け、
この凸部にてモータフレームの天面に設けた取付
穴を閉塞することにより、防塵カバーを廃止した
ものである。Structure of the invention Therefore, the present invention provides a convex portion on the magnet,
By blocking the mounting hole provided on the top surface of the motor frame with this convex portion, the dustproof cover is eliminated.
実施例の説明
以下本考案の一実施例について、図面を参照し
ながら説明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
第３図は本考案の一実施例における直流小型モ
ータを示し、第４図は同マグネツトを示すもの
で、従来構成と異なる点は、マグネツト８の軸方
向端面にリング状の凸部８ａを設け、この凸部８
ａにてモータフレーム１の天面に設けた取付穴２
を閉塞したもである。この構成により第２図の防
塵カバーの廃止を実現している。 Fig. 3 shows a small DC motor according to an embodiment of the present invention, and Fig. 4 shows the same magnet.The difference from the conventional structure is that a ring-shaped protrusion 8a is provided on the axial end face of the magnet 8. , this protrusion 8
Mounting hole 2 provided on the top surface of motor frame 1 at a
It is also a blockage. With this configuration, the dustproof cover shown in FIG. 2 can be eliminated.
考案の効果
以上の説明から明らかなように本考案は、マグ
ネツトに凸部を設けるだけの簡単な構成でマグネ
ツトに防塵効果を付加したので、防塵カバーを廃
止することができモータの価格低減と組立作業の
向上という優れた効果が得られる。Effects of the invention As is clear from the above explanation, the present invention adds a dustproof effect to the magnet with a simple configuration of providing a convex portion on the magnet, making it possible to eliminate the dustproof cover, thereby reducing the cost of the motor and assembly. The excellent effect of improving work performance can be obtained.
第１図は従来の直流小型モータの断面図、第２
図は従来の防塵カバーの断面図、第３図は本発明
の一実施例にかかる直流小型モータの断面図、第
４図は同マグネツトの断面図である。
１……フレーム、２……取付穴、８……マグネ
ツト、８ａ……凸部。
Figure 1 is a cross-sectional view of a conventional small DC motor, Figure 2
The figure is a sectional view of a conventional dustproof cover, FIG. 3 is a sectional view of a small DC motor according to an embodiment of the present invention, and FIG. 4 is a sectional view of the same magnet. 1...Frame, 2...Mounting hole, 8...Magnet, 8a...Protrusion.
Claims (1)
上に配置し、一方、前記モータフレームの内周面
に固定されるマグネツトの軸方向端面に前記取付
穴を閉塞する凸部を設けてなる直流小型モータ。 A small direct current device in which a plurality of mounting holes are arranged concentrically on the top surface of a motor frame, and a protrusion that closes the mounting holes is provided on the axial end surface of a magnet fixed to the inner circumferential surface of the motor frame. motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4387084U JPS60156852U (en) | 1984-03-27 | 1984-03-27 | DC small motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4387084U JPS60156852U (en) | 1984-03-27 | 1984-03-27 | DC small motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60156852U JPS60156852U (en) | 1985-10-18 |
| JPH0242053Y2 true JPH0242053Y2 (en) | 1990-11-08 |
Family
ID=30555932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4387084U Granted JPS60156852U (en) | 1984-03-27 | 1984-03-27 | DC small motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60156852U (en) |
-
1984
- 1984-03-27 JP JP4387084U patent/JPS60156852U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60156852U (en) | 1985-10-18 |
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