JP2991748B2 - Motor stator core - Google Patents
Motor stator coreInfo
- Publication number
- JP2991748B2 JP2991748B2 JP2193663A JP19366390A JP2991748B2 JP 2991748 B2 JP2991748 B2 JP 2991748B2 JP 2193663 A JP2193663 A JP 2193663A JP 19366390 A JP19366390 A JP 19366390A JP 2991748 B2 JP2991748 B2 JP 2991748B2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- core
- phase winding
- slot
- tooth
- 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 - Lifetime
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Windings For Motors And Generators (AREA)
Description
【発明の詳細な説明】 発明の属する技術分野 本発明は家電製品のファン駆動用に使用される電動機
の固定子鉄心に関するものである。Description: TECHNICAL FIELD The present invention relates to a stator core of an electric motor used for driving a fan of home electric appliances.
従来の技術 近年、人件費の高騰から電動機製造工程の自動化が急
激に進展しており、電動機も自動化対応の容易な構造が
求められている。2. Description of the Related Art In recent years, automation of a motor manufacturing process has been rapidly advancing due to a rise in labor costs, and a structure that facilitates automation of a motor has been demanded.
従来、この種の電動機の固定子鉄心は一般に第7図お
よび第8図に示すような構成であった。すなわち巻線巻
装を容易にするための方法として歯部鉄心110は回転子
(図示せず)が入る回転子孔111の外方へ放射状に複数
の歯112を配置し、それぞれの歯112は橋絡部113で回転
孔111の外周に連結されており、歯112との間は巻線114
が巻装され収納される空間となるスロット115を形成し
ている。前記歯112の外周には側方に突出する突出部116
と隣接の突部116との間はスロット115に巻線114を巻装
するための開口部117を形成している。そして、環状の
継鉄部鉄心118の内周側に凸部119を設け、巻線114を開
口部117よりスロット115に巻装、収納したあと前記の凸
部119を前記開口部117に圧入嵌合し、固定子として構成
していた。Conventionally, the stator core of this type of motor has generally been configured as shown in FIGS. That is, as a method for facilitating winding winding, the tooth core 110 has a plurality of teeth 112 radially arranged outside a rotor hole 111 in which a rotor (not shown) enters. It is connected to the outer periphery of the rotating hole 111 by a bridging portion 113, and a winding 114
Is formed as a slot 115 serving as a space in which is wound and stored. The outer periphery of the tooth 112 has a protrusion 116 projecting sideways.
An opening 117 for winding the winding 114 around the slot 115 is formed between the adjacent projection 116 and the adjacent projection 116. Then, a convex portion 119 is provided on the inner peripheral side of the annular yoke core 118, the winding 114 is wound around the slot 115 from the opening 117, and the convex 119 is press-fitted into the opening 117. And was configured as a stator.
発明が解決しようとする課題 このような従来の構成では、歯部鉄心110外側の開口
部117から極数個のA相巻線114AおよびB相巻線114Bを
それぞれ順に直巻巻装する際、先に巻装されスロット11
5Aに収納されたA相巻線114Aのコイルエンド部は、B相
巻線114Bの収納されるスロット115Bの内周側の一部を閉
塞して有効スロットスペースを減じ巻装可能なB相巻線
114Bの巻線量を減じてしまうという課題があった。In such a conventional configuration, when the A-phase winding 114A and the B-phase winding 114B of the poles are sequentially wound in order from the opening 117 outside the tooth core 110, respectively, Slot 11 wound first
The coil end portion of the A-phase winding 114A housed in 5A closes a part of the inner peripheral side of the slot 115B in which the B-phase winding 114B is housed, thereby reducing the effective slot space and winding the B-phase winding. line
There was a problem that the winding amount of 114B was reduced.
本発明は上記課題を解決するもので、先に巻装するA
相巻線のコイルエンド部がB相巻線収納用のスロットス
ペースを閉塞するのを少なく抑え巻線の収納可能なスペ
ースを大巾に拡大し、各相各極の磁路の長さを同等に設
定することにより、各相各極の起磁力の均一化を図った
電動機の固定子鉄心を提供することを第一の目的とす
る。そして、第二の目的はB相巻線の収納可能なスロッ
トスペースを拡大するとともにA相巻線、B相巻線を励
磁することにより発生した磁力性の通る磁路の長さの増
大を最小限に抑え、モータ効率の低下を少なくする電動
機の固定子鉄心を提供することを目的とするものであ
る。The present invention solves the above-mentioned problems, and the first winding A
The coil end of the phase winding reduces the blockage of the slot space for storing the B-phase winding, greatly expanding the space where the winding can be stored, and equalizing the magnetic path length of each pole for each phase. It is a first object of the present invention to provide a stator core of a motor in which the magnetomotive force of each pole of each phase is made uniform by setting. The second purpose is to increase the slot space in which the B-phase winding can be stored and minimize the increase in the length of the magnetic path through which the magnetic force is generated by exciting the A-phase winding and the B-phase winding. It is an object of the present invention to provide a stator core of a motor in which a reduction in motor efficiency is reduced.
課題を解決するための手段 本発明は上記第一の目的を達成するために第一の手段
は毎極毎相のスロット数が2の固定子鉄心を、回転子孔
の外周に略放射状に設けられた複数の歯を有し巻線を巻
装する歯部鉄心と、磁路を形成する継鉄部鉄心に分割
し、前記継鉄部鉄心はその一部が歯部鉄心のスロットの
外周の開口部にはまりこみながら前記歯部鉄心の外周部
に嵌合されてなる構成とし、前記歯部鉄心のスロットの
内側に短節巻のA相巻線を直巻巻装し、このA相巻線と
電気角で90度隔てた位置に短節巻のB相巻線を前記スロ
ットの外側に直巻巻装した固定子を有する内転型電動機
において、各極のA相巻線が囲繞する3個のうち両端の
2個の歯はS字状または逆S字状に設け、このS字状ま
たは逆S字状の歯は中央の歯に対し略直角方向に向く部
分を有し、この直角方向に向く部分の延長線は前記中央
の歯の径方向中心点よりも内側でこの中央の歯と交叉す
るためA相巻線巻装用スロット全体に巻線を巻装しても
B相巻線巻装用スロットのごく一部しか閉塞せず大部分
は巻線可能スペースとして残すことができるように設定
された電動機の固定子鉄心の構成としたものである。Means for Solving the Problems According to the present invention, in order to achieve the first object, a first means is to provide a stator core having a number of slots of 2 for each pole and each phase substantially radially around the outer periphery of a rotor hole. Tooth core having a plurality of teeth and winding a winding, and a yoke core forming a magnetic path, and the yoke core is partially formed around a periphery of a slot of the tooth core. The toothed iron core is fitted to the outer periphery of the toothed core while being fitted into the opening. A short-phase winding A-phase winding is directly wound inside the slot of the toothed iron core. In an adduction type electric motor having a stator in which a short-phase winding B-phase winding is wound directly outside the slot at a position separated by 90 degrees in electrical angle from the wire, the A-phase winding of each pole is surrounded. Of the three teeth, the two teeth at both ends are provided in an S-shape or inverted S-shape, and the S-shaped or inverted S-shaped teeth are oriented in a direction substantially perpendicular to the central tooth. A winding extending around the entire A-phase winding winding slot, since an extension of the perpendicular direction intersects the central tooth inside the radial center point of the central tooth. However, the stator core of the motor is set so that only a small part of the slot for winding the B-phase winding is closed and most of the slot is left as a windable space.
また、第二の目的を達成するための第二の手段は毎極
毎相のスロット数が2の固定子鉄心を、回転子孔の外周
に略放射状に設けられた複数の歯を有し巻線を巻装する
歯部鉄心と、磁路を形成する継鉄部鉄心に分割し、前記
継鉄部鉄心はその一部が歯部鉄心のスロットの外周の開
口部にはまりこみながら前記歯部鉄心の外周部に嵌合さ
れてなる構成とし前記歯部鉄心のスロットの内側に短節
巻のA相巻線を直巻巻装し、このA相巻線と電気角で90
度隔てた位置に短節巻のB相巻線を前記スロットの外側
に直巻巻装した固定子を有する内転型電動機において、
各極のA相巻線が囲繞する3個の歯のうち両端の2個の
歯はS字状または逆S字状に設け、このS字状または逆
S字状の歯は中央の歯の内周方向への延長線に対して鋭
角に交叉する直線部分を有し、前記直線部分を、その中
心線の延長線が交叉する点が回転子孔の円中心よりも大
きく近位置にくる方向に傾斜させることにより、A相巻
線巻装用スロットに巻線を巻装してもB相巻線巻装用ス
ロットの一部しか閉塞せず巻線可能スペースを残すこと
ができるように設定した構成の電動機の固定子鉄心の構
成としたものである。Further, a second means for achieving the second object is to wind a stator core having a number of slots of two for each pole and each phase, and having a plurality of teeth provided substantially radially on the outer periphery of the rotor hole. The core is divided into a tooth core for winding a wire, and a yoke core forming a magnetic path. A short phase winding A-phase winding is wound directly inside the slot of the tooth core, and the A-phase winding is electrically connected to the outer circumference of the iron core by 90 degrees.
An adduction type motor having a stator in which a short-phase winding B-phase winding is directly wound around the outside of the slot at a position separated by degrees.
Of the three teeth surrounded by the A-phase winding of each pole, two teeth at both ends are provided in an S-shape or an inverted S-shape, and the S-shaped or the inverted S-shaped tooth is a central tooth. A straight line portion that intersects at an acute angle with respect to an extension line in the inner circumferential direction, and a direction in which a point where the extension line of the center line intersects the straight line portion is closer to the center than the center of the rotor hole circle. The configuration is such that even if the winding is wound around the A-phase winding winding slot, only a part of the B-phase winding winding slot is closed and a winding-possible space can be left. Of the stator core of the electric motor described above.
発明の実施の形態 本発明は上記した第1の手段の構成により、製造工程
において先に直巻巻装するA相巻線は、歯部鉄心の内周
側に偏って巻装され、後に直巻巻装するB相巻線は歯部
鉄心の外周側に偏って巻装され、B相巻線が囲繞する両
端のS字型及び逆S字型を成す2つの歯に設けた折曲部
の位置は、A相巻線の囲繞する両端の歯の折曲部どうし
を結ぶ直線が、中央の歯において歯部鉄心の外周と内周
とを半径方向に結ぶ直線に対しその中心点より内側で直
交するように設定されているので、A相巻線を収納限度
量までいっぱいに巻装しても、このコイルエンド部がB
相巻線用のスロットを閉塞する量はごくわずかなものと
なる。そして、全スロットの深さを等しく設定したため
各相各極のそれぞれの磁路の長さはすべて同等に構成さ
れることとなる。DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, in the manufacturing process, an A-phase winding which is firstly wound in a manufacturing process is wound around an inner peripheral side of a tooth core, and is later wound straight. The B-phase winding to be wound is biased and wound around the outer periphery of the tooth core, and bent portions provided at two ends of the S-shaped and inverted S-shaped teeth at both ends surrounded by the B-phase winding. The position of is that the straight line connecting the bent parts of the teeth at both ends surrounding the A-phase winding is inside the center point of the straight line connecting the outer circumference and the inner circumference of the tooth core in the center tooth in the radial direction. , So that even if the A-phase winding is fully wound up to the storage limit,
The amount of closing the phase winding slot is negligible. Since the depths of all the slots are set to be equal, the lengths of the magnetic paths of each phase and each pole are all equal.
また、第二の手段の構成により、A相巻線、B相巻線
の囲繞する複数の歯のうち両端の2つの歯が直線状で、
前記2つの歯のセンター線の交点が回転子孔の円中心よ
りも近位置にくる方向に傾斜して設けられることによ
り、A相巻線収納用スロットは歯部鉄心の内周側が拡大
されB相巻線収納用スロットは外周側が拡大されること
になり、実際に巻線を収納することのできるスロット面
積、特に後から巻装されるB相巻線が収納されるスロッ
トの有効面積の減少が防止されるとともに、前記傾斜し
て設けられる歯は直線状であるため巻線に電流を流し発
生した磁束が通る磁路長の増大は最小限に抑えられるこ
とになる。According to the configuration of the second means, two teeth at both ends of the plurality of teeth surrounding the A-phase winding and the B-phase winding are linear,
Since the intersection of the center lines of the two teeth is provided so as to be inclined in a direction closer to the center of the circle of the rotor hole, the A-phase winding receiving slot is enlarged on the inner peripheral side of the tooth core and B The outer peripheral side of the phase winding storage slot is enlarged, so that the slot area that can actually store the winding, especially the effective area of the slot that stores the B-phase winding wound later is reduced. In addition, since the inclined teeth are linear, an increase in the magnetic path length through which a current flows through the winding and through which the generated magnetic flux passes can be minimized.
実施例 以下、本発明の第1の実施例について第1図〜第4図
を参照しながら説明する。Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
図に示すように、複数個の歯3をほぼ放射状に配置
し、これらの歯3の内周縁部を円形状に連結した橋絡部
4により回転子孔2を形成するとともに、隣どうしの歯
3間に巻線が収納される空間となるスロット7を設け、
外周縁部にスロット7に巻線を直巻するための開口部8
を設けた鉄心板5を、複数枚積層して歯部鉄心1を形成
している。そして歯部鉄心1は、内周面にリング状の立
ち上げ部を有する絶縁材料6によりインサート成型され
て、絶縁処理されるとともに、強固に一体保持されてい
る。また、開口部8から直巻されスロット7の内周側に
巻装されるA相巻線9Aに囲繞される3本の歯のうち両端
の2本の歯3、3は、外周縁部近傍に折曲部3aを有して
おり、この折曲部3aは、歯3、3を内周側で互いに近づ
ける方向に折曲するものであり、その位置は、折曲部3
a、3aどうしを結ぶ直線が、この2本の歯3、3間の中
心部に位置する歯3′に対し、この3′の半径方向の中
心点Oより下方で直交するように設定されている。そし
て、A相巻線9A巻相ののちに、このA相巻線と電気角90
゜隔てた位置のスロット7の外周側にB相巻線9Bを巻装
し、その後に、歯部鉄心1の外周に環状の継鉄部鉄心10
を圧入して、固定子鉄心を構成している。As shown in the figure, a plurality of teeth 3 are arranged almost radially, and a rotor hole 2 is formed by a bridging part 4 connecting the inner peripheral edges of these teeth 3 in a circular shape. A slot 7 serving as a space for accommodating a winding is provided between the three,
An opening 8 for directly winding a winding around the slot 7 at the outer peripheral edge
The toothed core 1 is formed by laminating a plurality of core plates 5 provided with. The tooth core 1 is insert-molded with an insulating material 6 having a ring-shaped rising portion on the inner peripheral surface, is insulated, and is firmly held integrally. Of the three teeth surrounded by the A-phase winding 9A wound directly from the opening 8 and wound on the inner peripheral side of the slot 7, two teeth 3, 3 at both ends are located near the outer peripheral edge. The bent portion 3a is bent in a direction in which the teeth 3, 3 are brought closer to each other on the inner peripheral side, and the position of the bent portion 3a is
A straight line connecting a and 3a is set so as to be orthogonal to the tooth 3 'located at the center between the two teeth 3 and 3 below the radial center point O of the 3'. I have. After the A-phase winding 9A winding phase, the A-phase winding and the electrical angle 90
A B-phase winding 9B is wound around the outer periphery of the slot 7 at a distance from the slot 7, and thereafter, an annular yoke core 10 is wound around the outer periphery of the tooth core 1.
To form a stator core.
上記構成の固定子鉄心は、製造工程において、まずA
相巻線9Aが先に開口部8から直巻巻装され、歯3、3及
び3′を囲繞してA相巻線収納用スロット7Aに収納され
るが、歯3、3が内周側で互いに近づく方向で折曲され
ているために、A相巻線9Aは内周面に偏って収納され
る。つぎにB相巻線9BをB相巻線収納用スロット7Bに巻
装するが、歯3、3は外周側では互いに遠ざかる形状と
なっている、すなわちB相巻線9Bが囲繞する歯3、3に
ついてみれば、外周部で互いに近づく形状となるので、
B相巻線9Bは外周側に偏って収納される。In the manufacturing process, the stator core having the above configuration
The phase winding 9A is first wound straight from the opening 8 and is housed in the A-phase winding housing slot 7A surrounding the teeth 3, 3 and 3 '. Are bent in the direction approaching each other, so that the A-phase winding 9A is housed biasedly on the inner peripheral surface. Next, the B-phase winding 9B is wound around the B-phase winding accommodating slot 7B, and the teeth 3, 3 are formed so as to be away from each other on the outer peripheral side, that is, the teeth 3, which are surrounded by the B-phase winding 9B, As for 3, the shape becomes closer to each other at the outer periphery,
The B-phase winding 9B is accommodated in the outer periphery side.
このように、A相巻線9AとB相巻線9Bとには、直巻巻
装するとき、互いに分離する方向に力が作用するので、
A相巻線9Aのコイルエンド部がB相巻線9B巻装の障害に
なることはなく、巻線の作業性が向上する。As described above, when the A-phase winding 9A and the B-phase winding 9B are wound in series, a force acts in a direction in which they are separated from each other.
The coil end of the A-phase winding 9A does not hinder the winding of the B-phase winding 9B, and the workability of the winding is improved.
さらに、A相巻線9Aの囲繞する歯3、3に形成された
折曲部3a、3aの位置は、折曲部3a、3aどうしを結ぶ直線
が、これらの歯3、3間の中心部に位置する歯3′に対
し、この歯3′の半径方向の中心点より内側で直交する
ように設定されているので、A相巻線9AをA相巻線収納
用スロット7Aに収納できる限度いっぱいに巻装する、す
なわち折曲部3aの位置まで巻装しても、このA相巻線9A
のコイルエンド部が閉塞するB相巻線収納用スロット7B
の面積は、第3図に示すようにごくわずかなものであ
り、B相巻線9Bの巻線収納可能なスペースも大幅に拡大
することになる。Further, the positions of the bent portions 3a, 3a formed on the surrounding teeth 3, 3 of the A-phase winding 9A are indicated by a straight line connecting the bent portions 3a, 3a with each other at the center between the teeth 3, 3. Is set so as to be orthogonal to the tooth 3 'located at the inner side from the radial center point of the tooth 3', so that the A-phase winding 9A can be stored in the A-phase winding storing slot 7A. Even if the A-phase winding 9A is fully wound, that is, wound to the position of the bent portion 3a,
Slot B for storing the B-phase winding, where the coil end of the coil is closed
3 is very small as shown in FIG. 3, and the space in which the winding of the B-phase winding 9B can be stored is greatly increased.
そして歯3、3には第1図に示すように外周縁部近傍
の3aと内周側近傍の折曲部3bが設けられており、全ての
スロット7の深さは等しく設定されることになり、各相
各極の巻線に電流を流し発生した磁束が通る磁路の長さ
はほぼ同等に構成されることとなる。As shown in FIG. 1, the teeth 3, 3 are provided with 3a near the outer peripheral edge and a bent portion 3b near the inner peripheral side, and the depths of all the slots 7 are set to be equal. Thus, the length of the magnetic path through which the current flows through the winding of each phase and through which the generated magnetic flux passes is substantially equal.
なお、歯3、3に設ける折曲部3aは、外周縁だけでな
く、第1部に示すように内周側近傍にも折曲部3bを設け
てよく、この場合には巻線相互の分離性および巻線収納
スペースの拡大において、さらに貢献することとなる。The bent portions 3a provided on the teeth 3, 3 may be provided with bent portions 3b not only on the outer peripheral edge but also near the inner peripheral side as shown in the first part. This will further contribute to the separation and the expansion of the winding storage space.
つぎに本発明の第2実施例を第5図及び第6図を参照
しながら説明する。なお第1実施例と同一箇所には同一
記号を設けて詳細な説明は省略する。図に示すように、
歯部鉄心1は前記第1の手段による実施例と同等の構成
であるが、A相巻線9A(またはB相巻線9B)の囲繞する
歯3のうち両端の2つの歯3が、前記2つの歯3の中心
線の交点がO′が回転子孔2の中心Oよりも近位置に来
る方向に傾斜したことのみ異なる構成となるものであ
る。Next, a second embodiment of the present invention will be described with reference to FIGS. The same parts as those in the first embodiment are provided with the same symbols, and detailed description is omitted. As shown in the figure,
The tooth core 1 has the same configuration as that of the first embodiment, but two teeth 3 at both ends of the surrounding teeth 3 of the A-phase winding 9A (or the B-phase winding 9B) The only difference is that the intersection of the center lines of the two teeth 3 is inclined in such a direction that O ′ comes closer to the center O of the rotor hole 2.
上記構成においては、前記第1の手段の実施例と同じ
く、先に巻装されるA相巻線9AはA相巻線収納用スロッ
ト7Aの内周側に偏って収納されそのコイルエンド部はB
相巻線収納用スロット7Bの内周側の一部を閉塞し、B相
巻線収納用スロット7Bは外周側程面積が拡大されるた
め、B相巻線9Bは、外周側に偏って収納される。また、
A相巻線9AまたはB相巻線9Bの囲繞する歯3のうち両端
の2つの歯3が直線状であるため、巻線に電流を流し発
生した磁束が通る磁路の長さの増大は最小限に抑えられ
る。In the above configuration, similarly to the embodiment of the first means, the previously wound A-phase winding 9A is biased toward the inner peripheral side of the A-phase winding storage slot 7A, and the coil end portion thereof is B
Part of the inner circumference of the phase winding storage slot 7B is closed, and the area of the B phase winding storage slot 7B is increased toward the outer circumference, so that the B phase winding 9B is biased toward the outer circumference. Is done. Also,
Since the two teeth 3 at both ends of the surrounding teeth 3 of the A-phase winding 9A or the B-phase winding 9B are linear, an increase in the length of the magnetic path through which a current flows and a magnetic flux generated by passing a current through the windings does not occur. Minimized.
なお、実施例では第1図に示すように、巻線が巻装さ
れる歯数を3本としたが、その数に限定されるものでは
なく、もっと多い歯数でもよく、その全てにおいて作用
効果が認められる。In the embodiment, as shown in FIG. 1, the number of teeth around which the winding is wound is three. However, the number of teeth is not limited to three, and a larger number of teeth may be used. The effect is recognized.
また、実施例では4極16スロットの固定子鉄心に短節
巻の巻線を施したものを用い、各鉄心板の内周縁部にす
べて橋絡部を有する構成としたが、いかなる極数、スロ
ット数、橋絡部個数でも適用可能で、その全てにおいて
作用効果が認められる。Further, in the embodiment, the stator core of 4 poles and 16 slots is provided with a short section winding, and all the inner peripheral edges of each core plate have a bridging portion. The present invention is applicable to the number of slots and the number of bridging portions, and all of them have the effect.
発明の効果 以上の実施例から明らかなように本発明によれば、先
に直巻巻装するA相巻線はA相巻線収納用すろっとの内
周側に、また後から直巻巻装されるB相巻線はB相巻線
収納用スロットの外周側に、それぞれ収納され、A相巻
線のコイルエンド部がB相巻線巻装の障害になることが
なくなり、電動機製造の巻線工程における作業効率の向
上が図れる。According to the present invention, it is clear from the above embodiments that the A-phase winding to be wound first is wound on the inner peripheral side of the A-phase winding accommodating spar, and the A-phase winding is wound later. The B-phase winding to be wound is housed on the outer peripheral side of the slot for storing the B-phase winding, and the coil end portion of the A-phase winding does not obstruct the winding of the B-phase winding. The work efficiency in the winding step can be improved.
さらに、A相巻線をA相巻線収納用スロットに収納で
きる限度いっぱいに巻装しても、A相巻線のコイルエン
ド部が閉塞するB相巻線収納用スロットの面積はごくわ
ずかなものであり、B相巻線もB相巻線収納用スロット
に収納できる限度まで巻装することができ、電動機の性
能を大幅に向上させることが可能となる。Furthermore, even if the A-phase winding is wound to the maximum extent that can be stored in the A-phase winding storage slot, the area of the B-phase winding storage slot in which the coil end of the A-phase winding is closed is very small. The B-phase winding can also be wound to the extent that it can be stored in the B-phase winding storage slot, and the performance of the electric motor can be greatly improved.
さらに、A相巻線、B相巻線収納用の全スロットの深
さを等しく構成したため、各相各極の磁路の長さがほぼ
同等となり、各相の各極巻線による起磁力が均一化さ
れ、異常な振動等の発生が防止される電動機の固定子鉄
心が提供できる。Furthermore, since the depths of all the slots for accommodating the A-phase winding and the B-phase winding are configured to be equal, the length of the magnetic path of each pole of each phase becomes substantially equal, and the magnetomotive force generated by each pole winding of each phase is reduced. It is possible to provide a stator core of a motor that is uniform and prevents occurrence of abnormal vibration and the like.
また、巻線の囲繞する歯のうち両端の2つの歯が直線
状で、前記2つの歯の中心線の交点が回転子孔の円中心
よりも近位置にくる方向に傾斜して設けてあるので、先
に直巻巻装するA相巻線はA相巻線収納用スロットの内
周側に、後から直巻巻装されるB相巻線B相巻線収納用
スロットの外周側に収納され、A相巻線のコイルエンド
部がB相巻線巻装の障害になることはすくなく、同時に
磁束の通路の増大も最小限に抑えられ電動機のモータ効
率の低下を最小限に抑える電動機の固定子鉄心が提供で
きる。The two teeth at both ends of the teeth surrounded by the winding are linear, and the intersection of the center lines of the two teeth is provided so as to be inclined in a direction closer to the center of the circle of the rotor hole. Therefore, the A-phase winding to be wound first is wound on the inner side of the slot for storing the A-phase winding, and the B-phase winding wound straight is wound on the outer side of the slot for storing the B-phase winding. The motor that is housed and the coil end of the A-phase winding does not easily hinder the winding of the B-phase winding, and at the same time, the increase in the passage of the magnetic flux is minimized and the decrease in the motor efficiency of the motor is minimized. Stator core can be provided.
第1図は本発明の第一実施例の固定子鉄心の歯部鉄心の
平面図、第2図は同固定子鉄心の一部断面とした平面
図、第3図は同A相巻線(1コイル)巻装後の歯部鉄心
の平面図、第4図は同固定子鉄心の半断面側面図、第5
図は本発明の第2実施例の固定子鉄心の歯部鉄心の平面
図、第6図は同固定子鉄心に巻線の一部を施した状態を
示す平面図、第7図は従来の電動機の固定子鉄心の一部
断面と歯部鉄心の平面図、第8図は同固定子鉄心の巻線
(4コイル)巻装後の一部断面とした平面図である。 1……歯部鉄心、2……回転子孔、3、3′……歯、3a
……折曲部、7……スロット、7A……A相巻線収納用ス
ロット、7B……B相巻線収納用スロット、8……開口
部、9A……A相巻線、9B……B相巻線、10……継鉄部鉄
心、O……中心点FIG. 1 is a plan view of a tooth core of a stator core according to a first embodiment of the present invention, FIG. 2 is a plan view showing a partial cross section of the stator core, and FIG. FIG. 4 is a half sectional side view of the stator core, and FIG.
FIG. 6 is a plan view of a tooth core of a stator core according to a second embodiment of the present invention, FIG. 6 is a plan view showing a state where a part of a winding is applied to the stator core, and FIG. FIG. 8 is a plan view showing a partial cross section of a stator core and a tooth core of a motor, and FIG. 8 is a plan view showing a partial cross section after winding (four coils) of the stator core. 1 ... tooth core 2 ... rotor hole 3, 3 '... teeth 3a
… Bending portion, 7… Slot, 7A… Slot for A-phase winding, 7B… Slot for B-phase winding, 8… Opening, 9A… A-phase winding, 9B… B-phase winding, 10 ... Yoke core, O ... Center point
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6,DB名) H02K 1/00 - 1/34 H02K 29/00 H02K 3/00 - 3/28 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) H02K 1/00-1/34 H02K 29/00 H02K 3/00-3/28
Claims (2)
を,回転子孔の外周に略放射状に設けられた複数の歯を
有し巻線を巻装する歯部鉄心と、磁路を形成する継鉄部
鉄心に分割し、前記継鉄部鉄心はその一部が歯部鉄心の
スロットの外周の開口部にはまりこみながら前記歯部鉄
心の外周部に嵌合されてなる構成とし、前記歯部鉄心の
スロットの内側に短節巻のA相巻線を直巻巻装し、この
A相巻線と電気角で90度隔てた位置に短節巻を前記スロ
ットの外側に直巻巻装した固定子を有する内転型電動機
において、各極のA相巻線が囲繞する3個のうち両端の
2個の歯はS字状または逆S字状に設け、このS字状ま
たは逆S字状の歯は中央の歯に対し略直角方向に向く部
分を有し、この直角方向に向く部分の延長線は前記中央
の歯の径方向中心点よりも内側でこの中央の歯と交叉す
るためA相巻線巻装用スロット全体に巻線を巻装しても
B相巻線巻装用スロットのごく一部しか閉塞せず大部分
は巻線スペースとして残すことができるように設定され
た電動機の固定子鉄心。A stator core having a slot number of 2 for each pole and phase, a tooth core having a plurality of teeth provided substantially radially on an outer periphery of a rotor hole and winding a winding; The yoke core is divided into a yoke core forming a path, and a part of the yoke core is fitted into the outer peripheral portion of the tooth core while partially fitting into the opening of the outer periphery of the slot of the tooth core. A short-winding A-phase winding is wound directly inside the slot of the tooth core, and a short-winding is wound outside the slot at a position separated by 90 degrees in electrical angle from the A-phase winding. In an adduction motor having a stator wound in a series winding, two teeth at both ends of an A-phase winding of each pole are provided in an S-shape or an inverted S-shape. The inverted or S-shaped tooth has a portion oriented substantially at right angles to the central tooth, and an extension of the orthogonally directed portion is a radial center point of the central tooth. Because it intersects with this central tooth on the inner side of the bridge, even if the winding is wound around the entire A-phase winding winding slot, only a small part of the B-phase winding winding slot is closed, and most of the winding space is used. Motor stator stator core set as can be left as.
を、回転子孔の外周に略放射線状に設けられた複数の歯
を有し巻線を巻装する歯部鉄心と、磁路を形成する継鉄
部鉄心に分割し、前記継鉄部鉄心はその一部が歯部鉄心
のスロット開口部にはまりこみながら前記歯部鉄心の外
周部に勘合されてなる構成とし前記歯部鉄心のスロット
の内側に短節巻のA相巻線を直巻巻装し、このA相巻線
と電気角で90度隔てた位置に短節巻のB相巻線を前記ス
ロットの外側に直巻巻装した固定子を有する内転型電動
機において、各極のA相巻線が囲繞する3個の歯のうち
両端の2個の歯はS字状または逆S字状に設け、このS
字状または逆S字状の歯は中央の歯の内周方向への延長
線に対して鋭角に交叉する直線部分を有し、前記直線部
分を、その中心線の延長線が交叉する点が回転子孔の円
中心よりも大きく近位置にくる方向に傾斜させることに
より、A相巻線巻装用スロットに巻線を巻装してもB相
巻線巻装用スロットの一部しか閉塞せず巻線可能スペー
スを残すことができるように設定した構成の電動機の固
定子鉄心。2. A stator core having a number of slots of two for each pole and phase, a tooth core having a plurality of teeth provided substantially radially on the outer periphery of a rotor hole and winding a winding; The yoke core is divided into a yoke core forming a magnetic path, and a part of the yoke core is fitted into an outer peripheral portion of the tooth core while partially fitting into a slot opening of the tooth core. A short-phase winding A-phase winding is wound around the inside of the slot of the core core, and a short-phase winding B-phase winding is placed at an electrical angle of 90 degrees from the A-phase winding outside the slot. In the adduction type motor having the stator wound in series, the two teeth at both ends of the three teeth surrounded by the A-phase winding of each pole are provided in an S shape or an inverted S shape, This S
The S-shaped or inverted S-shaped tooth has a straight portion that intersects at an acute angle with respect to the extension of the center tooth in the inner circumferential direction, and the point where the extension of the center line intersects the straight portion. By inclining the rotor hole in a direction larger than the center of the circle and approaching the rotor hole, even if the winding is wound around the A-phase winding winding slot, only a part of the B-phase winding winding slot is closed. The stator core of the motor is configured to leave space for winding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2193663A JP2991748B2 (en) | 1990-07-20 | 1990-07-20 | Motor stator core |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2193663A JP2991748B2 (en) | 1990-07-20 | 1990-07-20 | Motor stator core |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0479738A JPH0479738A (en) | 1992-03-13 |
JP2991748B2 true JP2991748B2 (en) | 1999-12-20 |
Family
ID=16311703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2193663A Expired - Lifetime JP2991748B2 (en) | 1990-07-20 | 1990-07-20 | Motor stator core |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2991748B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014068927A1 (en) * | 2012-11-05 | 2014-05-08 | パナソニック株式会社 | Ceiling fan |
-
1990
- 1990-07-20 JP JP2193663A patent/JP2991748B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0479738A (en) | 1992-03-13 |
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