JPS58130759A - Plane opposite type dc motor - Google Patents

Plane opposite type dc motor

Info

Publication number
JPS58130759A
JPS58130759A JP1233382A JP1233382A JPS58130759A JP S58130759 A JPS58130759 A JP S58130759A JP 1233382 A JP1233382 A JP 1233382A JP 1233382 A JP1233382 A JP 1233382A JP S58130759 A JPS58130759 A JP S58130759A
Authority
JP
Japan
Prior art keywords
coil
motor
points
magnet
circumference
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.)
Granted
Application number
JP1233382A
Other languages
Japanese (ja)
Other versions
JPH0363306B2 (en
Inventor
Tetsuo Togano
戸叶 徹雄
Shinya Kono
真也 幸野
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1233382A priority Critical patent/JPS58130759A/en
Publication of JPS58130759A publication Critical patent/JPS58130759A/en
Publication of JPH0363306B2 publication Critical patent/JPH0363306B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K23/00DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/54Disc armature motors or generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)
  • Dc Machiner (AREA)

Abstract

PURPOSE:To improve the efficiency of a DC motor and to shorten the axial length of the motor by forming a single coil substantially in a sector shape to form an armature coil, thereby increasing the magnetic flux. CONSTITUTION:A sector-shaped single coil is formed by coupling two points on the same circumference to the point which is disposed opposite through a central point to the two points on a line which couples the intermediate point between the two points and the central point of the circumference, and a plurality of single coils are disposed so as to be displaced at the prescribed angle with the central point of the circumference as a center, thereby forming a disc-shaped coil 3. A magnet 8 is disposed through an axial air gap at the position except the center and the periphery of the coil 3. A yoke 5 which is opposite to the magnet 8 is provided through the coil 3.

Description

【発明の詳細な説明】 本発明は、マグネットとコイルを軸方向空隙を介して対
向させた平面対向型DCモータに関するもので、効率の
改善、コイルの巻線の簡略化、モータの小型化を図るこ
とを目的とするものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flat-faced DC motor in which a magnet and a coil are opposed to each other with an axial gap interposed therebetween, which improves efficiency, simplifies coil winding, and downsizes the motor. The purpose is to

近年、音響、映像機器等においては、機器の薄形化、小
形化に伴ない駆動源であるモータも薄く効率のよいもの
が強く要望され、このため、平面対向型DCモータがこ
の種の機器に多く用いられている。
In recent years, as audio and video equipment has become thinner and smaller, there has been a strong demand for thinner and more efficient motors, which serve as drive sources. It is often used in

第1図は従来の平面対向型DCモータの電機子の構造を
示すもので、シャフト1にコイル固定板2を介して電機
子コイル3を固定し、この電機子コイル3をシャフト1
に固定した整流子4に接続して構成している。
FIG. 1 shows the structure of an armature of a conventional planar-opposed DC motor. An armature coil 3 is fixed to a shaft 1 via a coil fixing plate 2.
The commutator 4 is connected to the commutator 4 fixed to the commutator 4.

以上の構成において、電機子コイル3は、第2図に示す
形状′に一極分の単コイルを形成し、この単コイルを第
3図に示すように重ねて構成しており、このため、第3
図すから明らかなように電機子コイル3の厚みが全面に
わたって単コイルの厚みの2倍以上となっており、電機
子コイル3の厚みが厚いものであった。
In the above configuration, the armature coil 3 is constructed by forming a single coil for one pole in the shape shown in FIG. 2, and stacking the single coils as shown in FIG. 3. Third
As is clear from the figure, the thickness of the armature coil 3 was more than twice the thickness of a single coil over the entire surface, and the armature coil 3 was thick.

第4図は上記電機子を用いた従来の平面対向型DCモー
タの構成を示すもので、6.6はシャフト1を支持する
軸受7を備えた磁性体よりなるヨークを構成するハウジ
ング、8はハウジング6に固着され、軸方向の空隙を介
して電機子コイル3に対向するマグネット、9は整流子
4に接触する刷子である。
FIG. 4 shows the configuration of a conventional planar DC motor using the armature described above, in which 6.6 is a housing that constitutes a yoke made of a magnetic material and is equipped with a bearing 7 that supports the shaft 1; A magnet 9 is fixed to the housing 6 and faces the armature coil 3 through an axial gap, and a brush is in contact with the commutator 4.

以上の構成から明らかなように従来の平面対向型DCモ
ータは、電機子コイル3の厚みが全面にわたって厚いた
め、マグネット8とハウジング(ヨーク)6の間隔Xが
長くなり、この結果、磁気抵抗が大きくなる。このため
マグネット8とヨーク間の空隙の磁束密度が小さくなり
、効率が悪く、かつモータの軸方向寸法が長いという欠
点があった。
As is clear from the above configuration, in the conventional planar opposed type DC motor, the thickness of the armature coil 3 is thick over the entire surface, so the distance X between the magnet 8 and the housing (yoke) 6 becomes long, and as a result, the magnetic resistance increases. growing. As a result, the magnetic flux density in the gap between the magnet 8 and the yoke is reduced, resulting in poor efficiency and the motor having a long axial dimension.

一方、モータの一回転中のトルクムラを小さくするため
には、コイル数(極数)を増加することも大変有効な手
段となるが、従来の構成では、例えば第6図に示すよう
に7極の場合、コイルの重なりは3コイルとなるだめ、
マグネット8とヨーク間の空隙はさらに広くなり、効率
、あるいは寸法、コストへの影響は大変大きなものとな
る。なお、第6図に示す如く、コイル幅を小さくして重
なりを小さくすることも考えられるが、この場合は、巻
線角度が悪く、効率が極めて悪いという欠点がある。
On the other hand, increasing the number of coils (number of poles) is a very effective means of reducing torque unevenness during one rotation of the motor, but in the conventional configuration, for example, as shown in Figure 6, seven poles are used. In this case, the overlap of the coils is 3 coils,
The gap between the magnet 8 and the yoke becomes even wider, and the impact on efficiency, size, and cost becomes very large. Note that, as shown in FIG. 6, it is possible to reduce the overlap by reducing the coil width, but in this case, there is a drawback that the winding angle is poor and the efficiency is extremely poor.

本発明は、略扇形に単コイルを形成して電機子コイルを
構成し、上記従来の欠点を解消したもので、以下本発明
の実施例を添付図面を参照して説明する。
The present invention eliminates the above-mentioned conventional drawbacks by forming an armature coil by forming a single coil in a substantially fan shape.Embodiments of the present invention will be described below with reference to the accompanying drawings.

第7図は本発明にかかる電機子コイル3の単コイルの基
本的な形状を示すもので、点A 、 A’は電機子コイ
ル3(シャフト1)の中心点0に対して同一円周上の点
であり、点Bは中心点Oの近傍で点A 、 A’に対し
て中心点Oの反対側(点A 、 A’間の中間点と中心
点Oを結ぶ線上に位置し、点A。
FIG. 7 shows the basic shape of a single coil of the armature coil 3 according to the present invention, and points A and A' are on the same circumference with respect to the center point 0 of the armature coil 3 (shaft 1). , and point B is located near center point O and on the opposite side of center point O from points A and A' (located on the line connecting center point O and the midpoint between points A and A', and point A.

A′と中心点0をはさんで反対側)に位置している。It is located on the opposite side of A' and the center point 0).

この3点を直線、及び曲線で結んで扇形の単コイルを形
成し、第8図に示すように組合せて電機子コイル3を構
成する。
These three points are connected by a straight line and a curved line to form a fan-shaped single coil, which is combined to form the armature coil 3 as shown in FIG.

第9図は上記電機子コイル3を備えた電機子を示し、第
10図は第9図に示す電機子を備えた平面対向型DCモ
ータの構造を示すもので、電機子コイル3は、周辺部及
び中心部にコイルの重なりが生ずるが、有効導体部分で
あるマグネット8に対向する部分(第8図の8部)は重
なりがない。
FIG. 9 shows an armature equipped with the armature coil 3, and FIG. 10 shows the structure of a plane-opposed DC motor equipped with the armature shown in FIG. Although the coils overlap at the central portion and the central portion, there is no overlap at the portion facing the magnet 8, which is the effective conductor portion (portion 8 in FIG. 8).

このため、ヨークを構成するハウジング6のマグネット
8に対向する部分を界磁マグネット8の方向に突出させ
、マグネット8とハウジング6の間の空隙長Xを小さく
している。したがって、マグネット8とハウジング5の
間の磁束密度が大きくなり、効率が向上するとともに、
薄型化、小形化が図れる。
For this reason, the portion of the housing 6 forming the yoke that faces the magnet 8 is made to protrude in the direction of the field magnet 8, thereby reducing the gap length X between the magnet 8 and the housing 6. Therefore, the magnetic flux density between the magnet 8 and the housing 5 increases, efficiency improves, and
It can be made thinner and smaller.

また、第11図は7極の場合の電機子コイル3の構成を
示すもので、この場合も同様に重なり部分が少ないので
、空隙長Xが従来に比べ小さくでき、効率の改善が期待
できるとともに、一回転中のトルクムラの少ないモータ
が得られる。
In addition, Fig. 11 shows the configuration of the armature coil 3 in the case of 7 poles. In this case as well, since there are few overlapping parts, the air gap length X can be made smaller than before, and an improvement in efficiency can be expected. , a motor with less torque unevenness during one rotation can be obtained.

また、ブラシレスモータの場合でも同様の効果を発揮し
、回転子であるマグネットとヨーク(ハウジング)との
間の空隙長を小さくできるため、従来に比べ効率のよい
、一回転中でのトルクムラの少ないモータが得られる。
In addition, the same effect can be achieved with brushless motors, as the gap length between the rotor magnet and yoke (housing) can be reduced, resulting in higher efficiency and less torque unevenness during one rotation than conventional motors. A motor is obtained.

第12図はブラシレスモータの構成を示すもので、11
はシャフト、12はシャフト11に固定された磁性体よ
りなる回転板、13は回転板12に固着されたロータマ
グネット、14はシャフト11を支持する軸受16を備
えたハウジングで、磁性体よりなり、ヨークを構成して
いる。16は第8図、第11図に示す構成のステータコ
イルで、ハウジング14に絶縁体17を介して取付けら
れている。18はロータマグネット13の位置を検出す
る位置検出素子である。
Figure 12 shows the configuration of a brushless motor.
is a shaft, 12 is a rotating plate made of a magnetic material fixed to the shaft 11, 13 is a rotor magnet fixed to the rotating plate 12, 14 is a housing equipped with a bearing 16 that supports the shaft 11, and is made of a magnetic material, It makes up the yoke. Reference numeral 16 denotes a stator coil having the configuration shown in FIGS. 8 and 11, and is attached to the housing 14 via an insulator 17. 18 is a position detection element that detects the position of the rotor magnet 13.

また、第13図は一極のコイルを整数個(最大巻線の巻
回数)に分割し、巻線分布をより平均化したもので、こ
の構成によれば、断線、ショートの問題も少なく、さら
にコイルのJ9みを薄くすることができる。
In addition, Fig. 13 shows a one-pole coil divided into an integer number (maximum number of turns) to make the winding distribution more even. According to this configuration, there are fewer problems of wire breakage and short circuits. Furthermore, the J9 portion of the coil can be made thinner.

第14図は本発明にかかる巻線治具の構成を示すもので
、上面が円錐形の円柱状治具21の中央部に円柱状の突
出部22を設け、円錐部の周辺部に等間隔にピン23を
設け、突出部22を頂゛点にピ/23との間で第7図に
示す如く扇形に巻線する。第4図すにおけるA 、 A
’、 B点は、第7図におけるA 、 A’、 B点に
それぞれ対応する。上記治具によれば、各種を連続して
巻くことが可能となり、巻線作業が容易となる。従来に
おいては、単コイルを重ねて作成していたため、各種を
連続的に巻くことは困難であった。なお、電線には自己
融着電線が用いられ、巻線後、自己融着層によって相互
の電線を固着するとともに、熱間プレスすることにより
平らに薄く成型するものである。
FIG. 14 shows the structure of a winding jig according to the present invention, in which a cylindrical protrusion 22 is provided in the center of a cylindrical jig 21 with a conical upper surface, and is spaced at equal intervals around the periphery of the conical part. A pin 23 is provided at the pin 23, and a wire is wound in a fan shape between the protrusion 22 and the pin 23 at the apex as shown in FIG. A, A in Figure 4
Points ' and B correspond to points A, A', and B in FIG. 7, respectively. According to the above-mentioned jig, it becomes possible to wind various kinds of wires continuously, and the winding work becomes easy. Conventionally, single coils were stacked one on top of the other, making it difficult to continuously wind each type of coil. Note that a self-fusing electric wire is used for the electric wire, and after winding, the electric wires are fixed to each other by a self-fusing layer and are formed flat and thin by hot pressing.

以上の説明から明らかなように本発明によれば、中央部
及び周辺部を除く部分の単コイルの重なりが小なくなる
ので、マグネットとヨーク間の空隙を小さくすることが
でき、この結果、磁束密度の増大が図れ、モータの効率
が向上するとともに、軸方向長寸法の短縮をも可能とな
る。まだ、扇形に単コイルを形成するので、所定個数の
単コイルを連続して巻線することが可能で、巻線作業性
が大幅に向上する。
As is clear from the above description, according to the present invention, the overlap of the single coils in the parts other than the central part and the peripheral part is reduced, so the gap between the magnet and the yoke can be reduced, and as a result, the magnetic flux density It is possible to increase the motor efficiency, improve the efficiency of the motor, and also shorten the axial length dimension. However, since the single coils are formed in a fan shape, it is possible to continuously wind a predetermined number of single coils, and the winding work efficiency is greatly improved.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図a、bは従来の平面対向型DCモータにおける電
機子の断面図および平面図、第2図は同単コイルの平面
図、第3図a、bは同コイルの巻線配置構成を示す平面
図および断面図、第4図は第1図に示す電機子を用いた
平面対向型DCモータの断面図、第5図、第6図は従来
の他のコイルの配置構成を示す平面図、第7図は本発明
にかかるコイルの基本的な巻線構成を示す説明図、第8
図は同コイルの巻線配置構成を示す平面図、第9図a、
bは同コイルを用いた電機子の断面図および平面図、第
10図は同電機子を用いた・ド面対向型DCモータの断
面図、第11図は本発明の他の実施例にかかり7極の場
合の巻線配置構成を示す平面図、第12図は本発明の他
の実施例にかかる平面対向型ブラシレスDCモータの断
面図、第13図は本発明のさらに他の実施例にかかる巻
線配置構成を示す平面図、第14図a、b)J本発明V
Cかかる巻線治具の断面図および・ト面図である。 3・・−・・コイル、5.14   ハウジング(ヨー
ク)、a、13・・・・・・マグネット。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名a 
1 図 第2図 13図 *4図 × 第5図 第6図 17図 第8図 第9図 第10図 第11図 第12図 1/
Figures 1a and 1b are cross-sectional views and a plan view of the armature in a conventional flat-faced DC motor, Figure 2 is a plan view of the same single coil, and Figures 3a and 3b are the winding arrangement of the same coil. FIG. 4 is a cross-sectional view of a flat-faced DC motor using the armature shown in FIG. 1, and FIGS. 5 and 6 are plan views showing other conventional coil arrangements. , FIG. 7 is an explanatory diagram showing the basic winding configuration of the coil according to the present invention, and FIG.
The figure is a plan view showing the winding arrangement of the same coil, Figure 9a,
b is a cross-sectional view and a plan view of an armature using the same coil, FIG. 10 is a cross-sectional view of a face-to-face DC motor using the same armature, and FIG. FIG. 12 is a plan view showing the winding arrangement in the case of 7 poles, FIG. 12 is a cross-sectional view of a planar brushless DC motor according to another embodiment of the present invention, and FIG. 13 is a diagram showing a further embodiment of the present invention. A plan view showing such a winding arrangement configuration, FIG. 14a, b) J Invention V
C is a cross-sectional view and a top view of such a winding jig. 3... Coil, 5.14 Housing (yoke), a, 13... Magnet. Name of agent: Patent attorney Toshio Nakao and 1 other persona
1 Figure 2 Figure 13 * 4 Figure × Figure 5 Figure 6 Figure 17 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 1/

Claims (1)

【特許請求の範囲】 1 同一円周上の2点と、前記2点の中間点と前記円周
の中心点を結ぶ線上で、前記2点と中心点をはさんで反
対側に位置する点とを結んで扇形の単コイルを形成し、
複数個の前記単コイルを前記円周の中心点を中心として
所定角度づつずらせて配置して円盤状コイルを構成し、
このコイルの中央部及び周辺部を除く位置に軸方向空隙
を介してマグネットを配置し、かつ、前記コイルを介し
て前記マグネットに対向するヨークを備えた平面対向型
DCモータ。 劇 2 前記単コイルは、整数個に分Iし、角度をずらせて
配列した特許請求の範囲第1項記載の平面対向型DCモ
ータ。
[Claims] 1. Two points on the same circumference, and a point located on the opposite side of the line between the two points and the center point of the circumference, with the center point between the two points. to form a fan-shaped single coil,
A disc-shaped coil is constructed by arranging a plurality of the single coils at predetermined angle intervals around the center point of the circumference,
A planar facing type DC motor including a magnet disposed with an axial gap in a position other than the central part and peripheral part of the coil, and a yoke facing the magnet with the coil interposed therebetween. 2. The planar opposed type DC motor according to claim 1, wherein the single coil is divided into an integral number and arranged at different angles.
JP1233382A 1982-01-27 1982-01-27 Plane opposite type dc motor Granted JPS58130759A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1233382A JPS58130759A (en) 1982-01-27 1982-01-27 Plane opposite type dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1233382A JPS58130759A (en) 1982-01-27 1982-01-27 Plane opposite type dc motor

Publications (2)

Publication Number Publication Date
JPS58130759A true JPS58130759A (en) 1983-08-04
JPH0363306B2 JPH0363306B2 (en) 1991-09-30

Family

ID=11802373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1233382A Granted JPS58130759A (en) 1982-01-27 1982-01-27 Plane opposite type dc motor

Country Status (1)

Country Link
JP (1) JPS58130759A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986003898A1 (en) * 1984-12-21 1986-07-03 Robert Bosch Gmbh Disc rotor for electric machine with axial air gap
US6481652B2 (en) 2000-11-28 2002-11-19 Emerson Electric Co. Food waste disposer having variable speed motor and methods of operating same
US6648252B2 (en) 2000-10-04 2003-11-18 Emerson Electric Co. Switched reluctance machine and food waste disposer employing switched reluctance machine
US6854673B2 (en) 2000-11-28 2005-02-15 Emerson Electric Co. Food waste disposer having a variable speed motor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986003898A1 (en) * 1984-12-21 1986-07-03 Robert Bosch Gmbh Disc rotor for electric machine with axial air gap
US6648252B2 (en) 2000-10-04 2003-11-18 Emerson Electric Co. Switched reluctance machine and food waste disposer employing switched reluctance machine
US6481652B2 (en) 2000-11-28 2002-11-19 Emerson Electric Co. Food waste disposer having variable speed motor and methods of operating same
US6854673B2 (en) 2000-11-28 2005-02-15 Emerson Electric Co. Food waste disposer having a variable speed motor
US7048213B2 (en) 2000-11-28 2006-05-23 Emerson Electric Co. Methods of operating a food waste disposer having a variable speed motor

Also Published As

Publication number Publication date
JPH0363306B2 (en) 1991-09-30

Similar Documents

Publication Publication Date Title
JP3745884B2 (en) Motor structure and manufacturing method thereof
US6445105B1 (en) Axial flux machine and method of fabrication
JPH0150316B2 (en)
CN109478813B (en) Axial gap type rotating electric machine
JPS58130759A (en) Plane opposite type dc motor
JPS6019496Y2 (en) Armature of rotating electrical machine
JP2957346B2 (en) Axial gap rotating electric machine
JPH0545099Y2 (en)
JPH0654471A (en) Armature of rotating electric machine
JP2946730B2 (en) Iron core
JPH09121488A (en) Stator coil for electric rotating machine
JPS62160047A (en) Flat motor
JP2524074Y2 (en) Permanent magnet type synchronous motor
JPH0416613Y2 (en)
JPH0654470A (en) Iron core of rotating electric machine
JPS6318430B2 (en)
JPS60156231A (en) Stator of rotary electric machine
JPS59139848A (en) Dc motor with double armature coils formed with armature of reduced thickness
JPS6248246A (en) Rotary machine of permanent magnet
JPH03285541A (en) Capacitor induction motor
JPH0223102Y2 (en)
JPS5915243Y2 (en) DC rotating electric machine
JPS60156252A (en) Disc armature electric machine
JPH0819235A (en) Universal motor
JPS58218844A (en) Rotor core of flat motor