JP2013013267A - Ac commutator electric motor, motor-driven air blower and electric cleaner employing ac commutator electric motor - Google Patents
Ac commutator electric motor, motor-driven air blower and electric cleaner employing ac commutator electric motor Download PDFInfo
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Abstract
Description
本発明は交流整流子電動機に関し、特に電気掃除機に使用される交流整流子電動機の電機子構造に関するものである。 The present invention relates to an AC commutator motor, and more particularly to an armature structure of an AC commutator motor used in a vacuum cleaner.
電気掃除機の駆動源として用いられる交流整流子電動機(ユニバーサルモータ)は、環状の固定子と、この固定子の磁極部間に配設された電機子と、この電機子の電機子巻線に電力授受を行う整流子とブラシから主に構成されている。この種の交流整流子電動機では、常に小型,軽量,ブラシの長寿命化,低振動化などが要求されている。小型・軽量化を達成するには電動機の高速化が効果的であるが、脈動トルクが大きいと整流性能が悪化(ブラシからの火花発生が大きくなる)してブラシ寿命低下に至る。 An AC commutator motor (universal motor) used as a driving source of an electric vacuum cleaner has an annular stator, an armature disposed between magnetic poles of the stator, and an armature winding of the armature. It is mainly composed of commutators and brushes that exchange power. This type of AC commutator motor is always required to be small, light, long brush life and low vibration. Speeding up the motor is effective in achieving a reduction in size and weight, but if the pulsation torque is large, the rectification performance deteriorates (spark generation from the brush increases) and the brush life is shortened.
従来、脈動トルクを低減する方法としては、磁極片の角度を左右非対称にする方法(特許文献1),磁極部に複数のスリットを設ける方法(特許文献2)が提案されている。 Conventionally, as a method of reducing pulsation torque, a method of making the angle of the pole piece asymmetrical (Patent Document 1) and a method of providing a plurality of slits in the magnetic pole part (Patent Document 2) have been proposed.
上述した従来技術では、ブラシの機械的接触状態を除けば、ブラシからの火花発生は磁極部や磁極片から電機子側へ流れる磁束に関係した整流起電力で左右され、個々に脈動トルクを低減した場合にはブラシの整流状態が悪化する恐れがあった。 In the above-mentioned prior art, except for the mechanical contact state of the brush, the spark generation from the brush depends on the rectified electromotive force related to the magnetic flux flowing from the magnetic pole part or pole piece to the armature side, and individually reduces the pulsating torque. In such a case, the rectification state of the brush may be deteriorated.
本発明の目的は、磁極片が左右対称で脈動トルクの低減及び整流ダンパ効果の均等化による整流改善が図れる交流整流子電動機を提供することにある。 An object of the present invention is to provide an AC commutator motor in which the pole pieces are symmetrical and the commutation improvement can be achieved by reducing the pulsating torque and equalizing the commutation damper effect.
上記の目的を解決するために、本発明は、ヨーク部と磁極部とを有する固定子鉄心と、該磁極部に巻装された界磁巻線を含む固定子と、電機子鉄心に形成した、なす形スロット中に電機子巻線を施し、該電機子巻線が接続される整流子とを含む回転子と、該電機子巻線に該整流子とブラシとを介して電力授受を行う2極の交流整流子電動機において、電機子スロット数を奇数とし、整流子セグメント数を電機子スロットの2倍(U=2)とし、δ=Ns/P−y=0.5(δ:端節度,Ns:電機子スロットの数,P:極対数,y:電機子巻線ピッチ)としたことを特徴とする。 In order to solve the above object, the present invention is formed in a stator core having a yoke portion and a magnetic pole portion, a stator including a field winding wound around the magnetic pole portion, and an armature core. A rotor including an armature winding in the formed slot, and a commutator to which the armature winding is connected, and power is transferred to the armature winding via the commutator and a brush. In a two-pole AC commutator motor, the number of armature slots is an odd number, the number of commutator segments is twice the number of armature slots (U = 2), and δ = Ns / P−y = 0.5 (δ: end Moderation, Ns: number of armature slots, P: number of pole pairs, y: armature winding pitch).
あるいは、上記の目的を解決するために、本発明は、ヨーク部と磁極部とを有する固定子鉄心と、磁極部に巻装された界磁巻線を含む固定子と、電機子鉄心に形成した、なす形スロット中に電機子巻線を施し、電機子巻線が接続される整流子とを含む回転子と、電機子巻線に整流子とブラシとを介して電力授受を行う2極の交流整流子電動機において、電機子のスロット数を11(奇数)とし、電機子巻線が接続される整流子片を電機子のスロット数の2倍の22(U=2)としたことを特徴とする。 Alternatively, in order to solve the above object, the present invention is formed on a stator core having a yoke portion and a magnetic pole portion, a stator including a field winding wound around the magnetic pole portion, and an armature core. A rotor including an armature winding in an egg-shaped slot and including a commutator to which the armature winding is connected, and two poles for transferring power to the armature winding via a commutator and a brush In the AC commutator motor, the number of slots of the armature is 11 (odd number), and the commutator piece to which the armature winding is connected is 22 (U = 2), which is twice the number of slots of the armature. Features.
さらに、本発明の交流整流子電動機を掃除機の駆動源である電動送風機に適用したことを特徴とする。 Furthermore, the AC commutator motor of the present invention is applied to an electric blower that is a driving source of a cleaner.
本発明の形態によれば、ヨーク部と磁極部とを有する固定子鉄心と、磁極部に巻装された界磁巻線を含む固定子と、電機子鉄心に形成した、なす形スロット中に電機子巻線を施し、電機子巻線が接続される整流子とを含む回転子と、電機子巻線に整流子とブラシとを介して電力授受を行う2極の交流整流子電動機において、電機子のスロット数を11(奇数)とし、電機子巻線が接続される整流子片の数を電機子のスロット数の2倍の22(U=2)とした。これにより、脈動トルクを低減しカーボンブラシの寿命安定化を図った交流整流子電動機を提供できる。 According to the embodiment of the present invention, the stator core having the yoke portion and the magnetic pole portion, the stator including the field winding wound around the magnetic pole portion, and the formed slot formed in the armature core. In a two-pole AC commutator motor that applies an armature winding and includes a commutator to which the armature winding is connected, and a power transmission / reception to the armature winding via a commutator and a brush, The number of armature slots was 11 (odd number), and the number of commutator pieces to which the armature windings were connected was 22 (U = 2), twice the number of armature slots. As a result, an AC commutator motor that reduces pulsation torque and stabilizes the life of the carbon brush can be provided.
以下、本発明の実施の形態について、図面を参照し、説明する。 Embodiments of the present invention will be described below with reference to the drawings.
以下に、本発明の実施例を示す。 Examples of the present invention are shown below.
図1は本発明による固定子鉄心と電機子鉄心の構成図を示す。 FIG. 1 shows a configuration diagram of a stator core and an armature core according to the present invention.
図2は従来の固定子鉄心と電機子鉄心の構成図を示す。 FIG. 2 shows a configuration diagram of a conventional stator core and armature core.
図3は本発明の交流整流子電動機を用いた電動送風機の構造を示す。 FIG. 3 shows the structure of an electric blower using the AC commutator motor of the present invention.
図1〜図3を参照して説明する。各図中において、共通する符号は同一物を示す。 A description will be given with reference to FIGS. In each figure, the common code | symbol shows the same thing.
電動送風機1は電動機(交流整流子電動機)2と送風機3から構成される。電動機2は、ハウジング4の内周側に固定された固定子鉄心5に界磁巻線6を巻装した固定子7,ハウジング4に設けられた軸受け8aと、エンドブラケット9に設けられた軸受け8bによって保持されるシャフト10,シャフト10には電機子鉄心11と整流子12が固定され、電機子鉄心11の電機子スロット13中に巻装された電機子巻線14が整流子12に接続された回転子15からなり、整流子12との電気的接続を行うカーボンブラシ16と、カーボンブラシ16を保持するとともにハウジング4に固定するためのブラシホルダ17とからなる。送風機3は、ナット18によりシャフト10の一端に固定される遠心ファン19,遠心ファン19から出た空気流の速度を落とし圧力回復するディフューザ20,空気流を電動機2内へ導くディフューザ20と一体に成形されたリターンガイド21,遠心ファン19とディフューザ20を覆うファンケーシング22によって構成される。 The electric blower 1 includes an electric motor (AC commutator motor) 2 and a blower 3. The electric motor 2 includes a stator 7 in which a field winding 6 is wound around a stator core 5 fixed on the inner peripheral side of a housing 4, a bearing 8 a provided in the housing 4, and a bearing provided in an end bracket 9. The armature core 11 and the commutator 12 are fixed to the shaft 10 and the shaft 10 held by the arm 8 b, and the armature winding 14 wound in the armature slot 13 of the armature core 11 is connected to the commutator 12. A carbon brush 16 that is electrically connected to the commutator 12, and a brush holder 17 that holds the carbon brush 16 and fixes it to the housing 4. The blower 3 is integrally formed with a centrifugal fan 19 fixed to one end of the shaft 10 by a nut 18, a diffuser 20 that reduces the speed of the air flow from the centrifugal fan 19 and recovers pressure, and a diffuser 20 that guides the air flow into the electric motor 2. It is constituted by a fan casing 22 that covers the molded return guide 21, the centrifugal fan 19 and the diffuser 20.
整流子12は、その円周面に整流子片12aを有し、各整流子片12aは回転子15内の電機子巻線14と接続されている。カーボンブラシ16は、つる巻バネ23により整流子12に押し付けられ、整流子12に摺接している。24はカーボンブラシ16を外部電極に接続するためのリード線であり、ブラシホルダ17に設けられた端子(図示せず)と接続されている。 The commutator 12 has commutator pieces 12 a on its circumferential surface, and each commutator piece 12 a is connected to the armature winding 14 in the rotor 15. The carbon brush 16 is pressed against the commutator 12 by the helical spring 23 and is in sliding contact with the commutator 12. Reference numeral 24 denotes a lead wire for connecting the carbon brush 16 to the external electrode, and is connected to a terminal (not shown) provided on the brush holder 17.
電動送風機1は、回転子15が回転し、回転子15と同軸に固定された遠心ファン19も回転する。遠心ファン19が回転するとファンケーシング22の空気取り入れ口25から空気が流入し、遠心ファン19,ディフューザ20,リターンガイド21を通り電動機2内部へと流れ込み、電動機2を冷却しつつ電動機2から排出される。 In the electric blower 1, the rotor 15 rotates, and the centrifugal fan 19 fixed coaxially with the rotor 15 also rotates. When the centrifugal fan 19 rotates, air flows from the air intake port 25 of the fan casing 22, flows into the electric motor 2 through the centrifugal fan 19, the diffuser 20, and the return guide 21, and is discharged from the electric motor 2 while cooling the electric motor 2. The
本発明について、図1(a),図1(b)について説明する。 The present invention will be described with reference to FIGS. 1 (a) and 1 (b).
図1(a)の時の磁極片50a及び磁極片50cは電機子鉄心11のティース51a及び51cの略中心に位置しており、磁極片50b及び50dは電機子鉄心11の電機子スロット13b及び電機子スロット13dの略中心に位置している。 The magnetic pole piece 50a and the magnetic pole piece 50c at the time of FIG. 1A are positioned substantially at the center of the teeth 51a and 51c of the armature core 11, and the magnetic pole pieces 50b and 50d are the armature slot 13b and the armature core 11 respectively. It is located substantially at the center of the armature slot 13d.
又、電機子鉄心11が0.5スロット回転した場合、図1(b)の様な位置になり磁極片50a及び磁極片50cは電機子鉄心11の電機子スロット13a及び電機子スロット13cの略中心に位置しており、磁極片50b及び磁極片50dは、電機子鉄心11のティース51b及びティース51dの略中心に位置している。 Further, when the armature core 11 is rotated by 0.5 slot, the magnetic pole piece 50a and the magnetic pole piece 50c are substantially the same as the armature slot 13a and the armature slot 13c of the armature core 11 as shown in FIG. The magnetic pole piece 50b and the magnetic pole piece 50d are located at the center of the tooth 51b and the tooth 51d of the armature core 11.
このように左右非対称に繰返し対向する構造にすることにより、パーミアンスの変動幅を小さくすることができ、電機子鉄心11が回転する時にスロットピッチの軸トルク脈動が低減でき、機械的振動が小さくなって、電動機2の整流性能を向上させることができ、交流整流子電動機の寿命を向上させることができる。 In this way, by adopting a structure that repeatedly faces asymmetrically left and right, the permeance fluctuation range can be reduced, the axial torque pulsation of the slot pitch can be reduced when the armature core 11 rotates, and the mechanical vibration is reduced. Thus, the rectification performance of the electric motor 2 can be improved, and the life of the AC commutator electric motor can be improved.
図2は従来の構成図を示す。図2(a)の時の磁極片50a及び磁極片50cは電機子鉄心11のティース51a及び51cの約中心に位置しており、磁極片50b及び50dは同様に電機子鉄心11のティース51b及び51dの中心に位置している。又、電機子鉄心11が0.5スロット回転した場合、図2(b)の様な位置になり磁極片50a及び磁極片50cは電機子鉄心11の電機子スロット13a及び電機子スロット13cの略中心に位置しており、磁極片50b及び磁極片50dは電機子鉄心11の電機子スロット13b及び電機子スロット13dの略中心に位置している。このように、ティース51に磁極片50が全て揃って対向したり離れたりして回転すると大きな脈動トルクが発生する。 FIG. 2 shows a conventional configuration diagram. The magnetic pole piece 50a and the magnetic pole piece 50c at the time of FIG. 2 (a) are located at approximately the center of the teeth 51a and 51c of the armature core 11, and the magnetic pole pieces 50b and 50d are similarly the teeth 51b and 50b of the armature core 11. It is located at the center of 51d. When the armature core 11 is rotated by 0.5 slot, the pole piece 50a and the pole piece 50c are substantially the same as the armature slot 13a and the armature slot 13c of the armature core 11 as shown in FIG. The magnetic pole piece 50b and the magnetic pole piece 50d are located at the center of the armature slot 13b and the armature slot 13d of the armature core 11. As described above, when the magnetic pole pieces 50 are all aligned with the teeth 51 so as to face or separate from each other, a large pulsating torque is generated.
次に電機子巻線14の巻線仕様について説明する。 Next, the winding specifications of the armature winding 14 will be described.
図5は従来の巻線図でU=2(電機子スロット13の数量:12スロット,整流子片12aの数量:24セグメント)の巻線内容で、カーボンブラシ16のカバリングが略2の状態である。図5(a)→図5(b)→図5(c)は整流子12が1セグメントずつ回転した状態を示す。図5(a)で説明すると、電機子巻線14aと電機子巻線14cは整流状態にあり電機子巻線14bと電機子巻線14dは整流終了末期状態にある。電機子スロット13につけたNo.1,6,7,12でみてみると整流終了末期状態の電機子巻線14b,14dには、整流状態の電機子巻線14a,14cが入っており、磁気的結合が強いことからダンパ効果が大きい。図5(b)は整流子12が1セグメント回転した状態であり電機子スロット13のNo.1と7は整流終了末期状態となった電機子巻線14a,14cが存在している。ダンパ効果のある整流状態の電機子巻線14e,14fは電機子スロット13のNo.6,12の片側しか存在しないので、磁気的結合は弱いため、ダンパ効果が小さい。更に整流子12を1セグメント回転させたのが図5(c)である。図5(c)と図5(a)は同じ状態になるので、ダンパ効果が大きい。回転毎にダンパ効果を見てみると図5(a)のダンパ効果大の状態、図5(b)のダンパ効果小の状態、図5(c)のダンパ効果大の状態が繰り返される。 FIG. 5 is a conventional winding diagram showing the winding content of U = 2 (the number of armature slots 13: 12 slots, the number of commutator pieces 12a: 24 segments), and the covering of the carbon brush 16 is approximately 2. is there. FIG. 5 (a) → FIG. 5 (b) → FIG. 5 (c) shows a state where the commutator 12 is rotated by one segment. Referring to FIG. 5A, the armature winding 14a and the armature winding 14c are in a rectifying state, and the armature winding 14b and the armature winding 14d are in an end state of rectification end. Looking at No. 1, 6, 7, and 12 attached to the armature slot 13, the armature windings 14b and 14d in the final state of rectification include the armature windings 14a and 14c in the rectified state and are magnetic. Because of the strong coupling, the damper effect is large. 5B shows a state in which the commutator 12 is rotated by one segment, and No. 1 and 7 in the armature slot 13 have armature windings 14a and 14c that are in the final state of commutation termination. Since the armature windings 14e and 14f in a rectified state having a damper effect exist only on one side of the armature slots 13 No. 6 and 12, the magnetic coupling is weak, so the damper effect is small. Further, FIG. 5C shows the commutator 12 rotated by one segment. Since FIG. 5C and FIG. 5A are in the same state, the damper effect is large. Looking at the damper effect for each rotation, the state of the damper effect being large in FIG. 5A, the state of the damper effect being small in FIG. 5B, and the state of the damper effect being large in FIG. 5C are repeated.
図4は、本発明の交流整流子電動機の巻線図でU=2(電機子スロット13の数量:11スロット,整流子片12aの数量:22セグメント)の巻線内容である。図4(a)→図4(b)→図4(c)と整流子12が1セグメントずつ回転した時の内容である。図4(a)で説明すると電機子巻線14g,14iは整流状態にあり電機子巻線14h,14jは整流終了末期状態にある。電機子スロット13のNo.1,6,7,11で見てみると、電機子スロット13のNo.1,6には整流終了末期状態の電機子巻線14hがあり整流状態の電機子巻線14gもあるため、図5(a)の状態の磁気的結合よりは弱い結合となるが、ダンパ効果が得られる。電機子巻線14jには整流状態の電機子巻線14gが片側に入っているが、整流終了末期状態の電機子巻線14hが入っているためダンパ効果が少ない。図4(b)は整流子12を1セグメント回転させた状態である。電機子巻線14k,14lは整流状態にあり電機子巻線14g,14iは整流終了末期状態にある。電機子スロット13のNo.1,5,6,11で見てみると、電機子スロット13のNo.6,11には整流終了末期状態の電機子巻線14iがあるが、整流状態の14lもあるためダンパ効果がある。電機子巻線14kには整流状態の電機子巻線14lが片側だけ入っているが整流終了末期状態の電機子巻線14iが入っているためダンパ効果が少ない。図4(c)は更に整流子12を1セグメント回転させた図である。図4(c)と図4(a)は同じ状態に戻る。 FIG. 4 is a winding diagram of the AC commutator motor of the present invention, showing the winding content of U = 2 (the number of armature slots 13: 11 slots, the number of commutator pieces 12a: 22 segments). FIG. 4 (a) → FIG. 4 (b) → FIG. 4 (c) shows the contents when the commutator 12 rotates by one segment. 4A, the armature windings 14g and 14i are in a rectified state, and the armature windings 14h and 14j are in a final state after completion of rectification. Looking at No. 1, 6, 7 and 11 of the armature slot 13, the No. 1 and 6 of the armature slot 13 have the armature winding 14h in the final state of commutation and the armature winding in the commutated state. Since the line 14g is also present, the coupling is weaker than the magnetic coupling in the state of FIG. 5A, but the damper effect is obtained. The armature winding 14j includes the rectified armature winding 14g on one side, but the damper effect is small because the armature winding 14h in the final state of rectification is included. FIG. 4B shows a state where the commutator 12 is rotated by one segment. The armature windings 14k and 14l are in the rectified state, and the armature windings 14g and 14i are in the final state after the rectification. Looking at No. 1, 5, 6 and 11 of the armature slot 13, the No. 6 and 11 of the armature slot 13 have the armature winding 14i in the final state of commutation, but 14l in the commutation state. There is also a damper effect. The armature winding 14k includes only one side of the rectified armature winding 14l. However, since the armature winding 14i in the final state of rectification is included, the damper effect is small. FIG. 4C is a diagram in which the commutator 12 is further rotated by one segment. FIG. 4C and FIG. 4A return to the same state.
従来と本発明のダンパ効果を時間軸で変化幅の大小関係を大大/中大/中小/小小の4段階で示すと、従来方式は大大/小小/大大/小小・・・と各極同期して変化幅が大きくなった。本発明では、(中大,中小)/(中小,中大)・・・の組合せが各極交互に変化し、変化幅の小さい均等化した変化を得ることができる。 The relationship between the conventional and the damper effects of the present invention on the time axis is shown in four stages of large / medium / medium / small / small, and the conventional method is large / small / large / small / small. The range of change became larger in polar synchronization. In the present invention, the combination of (medium large, medium small) / (medium small, medium large)... Changes alternately to each pole, and an equalized change with a small change width can be obtained.
以上の構成において、従来の巻線配置ではダンパ効果の(大大)の巻線の巻数は、多目に巻き、(小小)となる巻線の巻数は少なくする、いわゆる異数巻とすることによって、整流条件の均等化を狙った設定を取っていた。ブラシが安定して摺動する定常安定条件では所定のダンパ効果が得られるが、整流子12の真円度の狂いや振動により摺動不安定になると、所定のダンパ効果が得られにくくなることから、異数巻の比の大きい設定の時ほど逆効果となる可能性があった。 In the above configuration, in the conventional winding arrangement, the number of windings of the damper effect (large and large) is so many, and the number of windings of (small and small) is reduced, so-called different number of windings. Therefore, the setting was aimed at equalizing the rectification conditions. A predetermined damper effect can be obtained under steady stable conditions in which the brush slides stably. However, if the commutator 12 becomes unstable due to a roundness deviation or vibration, the predetermined damper effect is difficult to obtain. Therefore, there is a possibility that the reverse effect is more effective when the ratio of the different number of turns is set larger.
本発明の構成によれば、電機子スロット13の数Nsを11(奇数)、整流子片12の数Nbを電機子スロット13の数Nsの2倍の22(U=2)とすることにより、各磁極片50b,50dと電機子鉄心11のティース51b,51dの対向位置が非対称となり磁気回路パーミアンスの変動を小さくすることができることから、軸トルク脈動を低減することができる。更に巻数ピッチyを5として端節度δ(δ=Ns/2−y)をδ=0.5とした巻数配置とすることができ、整流中の巻線と整流終了末期状態の電機子巻線11との磁気的結合の強さの脈動幅を均等化することによりダンパ効果の脈動幅も均等化することができるため、整流抑制効果も均等化することができる。このことから、同一電機子スロット13内にある電機子巻線14の異数比を1に近い比に近づけることができ、ブラシの摺動が不安定となった非定常悪化条件においても巻数差による極端な(異数比を大きくした従来のような)逆効果の出る可能性を防止することができる。 According to the configuration of the present invention, the number Ns of armature slots 13 is 11 (odd number), and the number Nb of commutator pieces 12 is 22 (U = 2), which is twice the number Ns of armature slots 13. Since the opposing positions of the magnetic pole pieces 50b and 50d and the teeth 51b and 51d of the armature core 11 become asymmetric, the fluctuation of the magnetic circuit permeance can be reduced, so that the axial torque pulsation can be reduced. Further, the number of turns pitch y can be set to 5 and the end node degree δ (δ = Ns / 2−y) can be set to a number of turns of δ = 0.5. Since the pulsation width of the damper effect can be equalized by equalizing the pulsation width of the strength of magnetic coupling with 11, the rectification suppressing effect can also be equalized. This makes it possible to bring the ratio of the number of armature windings 14 in the same armature slot 13 close to a ratio close to 1, and the difference in the number of turns even under unsteady deterioration conditions where the sliding of the brush becomes unstable. It is possible to prevent the possibility of producing an extreme adverse effect (as in the conventional case in which the odd number ratio is increased).
図6に示すように、電気掃除機1001は、掃除機本体1002と、ホース部103と、手元操作スイッチSW等が設けられた操作管104と、伸縮自在に設けられた延長管105と、第2の吸込具106および第1の吸込具107とを備えて構成されている。 As shown in FIG. 6, the vacuum cleaner 1001 includes a vacuum cleaner main body 1002, a hose portion 103, an operation tube 104 provided with a hand operation switch SW and the like, an extendable tube 105 provided in a telescopic manner, The second suction tool 106 and the first suction tool 107 are provided.
掃除機本体1002は、内部に電動送風機1(図7参照、以下同じ)を備え、操作管104の手元操作スイッチSWを操作すること等によって電動送風機1の運転の強弱切り替えや、第1の吸込具107に設けられた図示しないパワーブラシの入り切り等が行えるようになっている。 The vacuum cleaner main body 1002 includes an electric blower 1 (see FIG. 7; the same applies hereinafter), and by operating the hand operation switch SW of the operation tube 104, the operation of the electric blower 1 is switched between strengths and the first suction. A power brush (not shown) provided on the tool 107 can be turned on and off.
掃除機本体1002から第1の吸込具107までのホース部103,操作管104,延長管105,第2の吸込具106の内部には、図示しない通風路が設けられており、電動送風機1により発生させた吸引力により吸引された塵埃は、第2の吸込具106,延長管105,操作管104,ホース部103を通じて掃除機本体1002に吸引され、集塵装置111(図7参照、以下同じ)に集塵される。 Inside the hose portion 103, the operation pipe 104, the extension pipe 105, and the second suction tool 106 from the vacuum cleaner main body 1002 to the first suction tool 107, a ventilation path (not shown) is provided. The dust sucked by the generated suction force is sucked into the cleaner main body 1002 through the second suction tool 106, the extension pipe 105, the operation pipe 104, and the hose portion 103, and the dust collector 111 (see FIG. ) Is collected.
掃除機本体1002の外殻は、下ケース201と上ケース202とによって覆われている。集塵装置111は、掃除機本体1002の前側(接続口1002aが設けられる側)に位置しており、上ケース202の上部には、ハンドル120が一体的に設けられている。また、ハンドル120の前方には、開閉可能な蓋部材130が設けられており、集塵装置111の上部が蓋部材130で開閉可能に塞がれるようになっている。 The outer shell of the cleaner body 1002 is covered with a lower case 201 and an upper case 202. The dust collector 111 is located on the front side of the cleaner body 1002 (the side on which the connection port 1002a is provided), and a handle 120 is integrally provided on the upper part of the upper case 202. In addition, a lid member 130 that can be opened and closed is provided in front of the handle 120 so that the upper portion of the dust collector 111 is closed by the lid member 130 so as to be opened and closed.
図7に示すように、掃除機本体1002は、前端部に、管状の接続口1002aを備えている。掃除機本体1002の前部側には、接続口1002aから吸い込んだ塵埃を分離収集する集塵装置111が備わり、掃除機本体1002の後部側には、集塵装置111に連通して吸引力を発生する電動送風機1が備わる。 As shown in FIG. 7, the vacuum cleaner main body 1002 includes a tubular connection port 1002a at the front end. A dust collector 111 that separates and collects the dust sucked from the connection port 1002a is provided on the front side of the cleaner body 1002, and a suction force that communicates with the dust collector 111 is provided on the rear side of the cleaner body 1002. An electric blower 1 is provided.
接続口1002aには、ホース部103に設けられた図示しない継手管が挿入されて保持されるようになっている。接続口1002aの内部には、シール部材が設けられており、シール部材は、継手管と集塵装置111側に設けられた図示しない入口管との気密を保持するようになっている。掃除機本体1002の前部下面(集塵装置111の下方)には、キャスタ102cが設けられている。 A joint pipe (not shown) provided in the hose portion 103 is inserted and held in the connection port 1002a. A sealing member is provided inside the connection port 1002a, and the sealing member is configured to maintain airtightness between a joint pipe and an inlet pipe (not shown) provided on the dust collector 111 side. A caster 102c is provided on the lower surface of the front portion of the vacuum cleaner body 1002 (below the dust collector 111).
集塵装置111は、塵埃分離部111aと塵埃収容部(塵埃収容器)111bとを有して構成されている。塵埃分離部111aは、吸い込んだ空気を旋回させ、遠心分離作用(サイクロン方式)によって塵埃を分離する部分である。塵埃収容部111bは、塵埃分離部111aに連通しており、塵埃分離部111aで分離された塵埃を収容する図示しない集塵かごを内部に備えている。 The dust collector 111 includes a dust separator 111a and a dust container (dust container) 111b. The dust separation part 111a is a part that swirls the sucked air and separates the dust by a centrifugal separation action (cyclone method). The dust container 111b communicates with the dust separator 111a and includes therein a dust collection basket (not shown) that stores the dust separated by the dust separator 111a.
塵埃分離部111aと塵埃収容部111bとは、集塵装置111の軸方向(前後傾斜方向)に配列され、それぞれの向かい合う軸方向端部同士が接続されて空気の通流可能に連通されており、使用者の操作によって容易に分離可能に構成されている。このうち塵埃分離部111aは、掃除機本体1002の前側に配置され、塵埃収容部111bは、塵埃分離部111aよりも掃除機本体1002の斜め後側に配置されている。塵埃分離部111aの前端部には、図示しない開口部が設けられており、その開口部が前記入口管に接続されている。 The dust separation unit 111a and the dust storage unit 111b are arranged in the axial direction (front-rear inclination direction) of the dust collector 111, and are connected to each other in such a manner that their opposite axial ends are connected to each other so that air can flow. It is configured to be easily separable by a user operation. Among these, the dust separation part 111a is arrange | positioned in the front side of the cleaner body 1002, and the dust accommodating part 111b is arrange | positioned in the diagonally back side of the cleaner body 1002 rather than the dust separation part 111a. An opening (not shown) is provided at the front end of the dust separator 111a, and the opening is connected to the inlet pipe.
塵埃分離部111aは、外筒111a1と、この外筒111a1内に設けられ、フィルタ機能を有する内筒111a2とを有している。塵埃分離部111a内において、空気は、図示しない貫通孔を通じて内筒111a2の外側(外筒111a1の内側)から内筒111a2の内側に流れるようになっており、その際、貫通孔を通らない大きなゴミが外筒111a1と内筒111a2との間に分離されるようになっている。この場合、吸込力にもよるが、例えば、1円玉以上の重さを有するゴミは、外筒111a1内において吸い上げられることなく、外筒111a1に残されるようになっている。 The dust separation unit 111a includes an outer cylinder 111a1 and an inner cylinder 111a2 provided in the outer cylinder 111a1 and having a filter function. In the dust separator 111a, air flows from the outside of the inner cylinder 111a2 (inside of the outer cylinder 111a1) to the inside of the inner cylinder 111a2 through a through-hole (not shown). Garbage is separated between the outer cylinder 111a1 and the inner cylinder 111a2. In this case, although depending on the suction force, for example, dust having a weight of 1 yen or more is left in the outer cylinder 111a1 without being sucked up in the outer cylinder 111a1.
これらの外筒111a1と内筒111a2とは、使用者の操作によって容易に分離可能に設けられている。これによって、ゴミ捨て時には、外筒111a1と内筒111a2とを分離することによって、外筒111a1の内部に堆積したゴミを排出することができ、内筒111a2の貫通孔に引っ掛かった髪の毛や糸屑等のゴミがある場合にも、これを容易に除去することができる。 The outer cylinder 111a1 and the inner cylinder 111a2 are provided so as to be easily separable by a user operation. As a result, when the garbage is thrown away, the outer cylinder 111a1 and the inner cylinder 111a2 are separated, whereby the dust accumulated in the outer cylinder 111a1 can be discharged, and the hair and lint caught in the through hole of the inner cylinder 111a2. Even if there is dust such as, it can be easily removed.
このような集塵装置111は、上ケース202の前部に開口した収容室に、左右両側から側壁243で保持されるようにして収容される。 Such a dust collector 111 is accommodated in the accommodation chamber opened at the front portion of the upper case 202 so as to be held by the side walls 243 from both the left and right sides.
側壁243は、集塵装置111に沿うように上ケース202の前部から中央部にかけて上り傾斜状に形成されており、側壁243の上端部には、ハンドル120が一体的に固定されている。 The side wall 243 is formed in an upwardly inclined shape from the front part to the center part of the upper case 202 so as to follow the dust collector 111, and the handle 120 is integrally fixed to the upper end part of the side wall 243.
本発明の交流整流子電動機は、掃除機に適用できる。 The AC commutator motor of the present invention can be applied to a vacuum cleaner.
1 電動送風機
2 電動機
3 送風機
4 ハウジング
5 固定子鉄心
6 界磁巻線
7 固定子
8,8a,8b 軸受け
9 エンドブラケット
10 シャフト
11 電機子鉄心
12 整流子
12a 整流子片
13,13a,13b,13c,13d 電機子スロット
14,14a,14b,14c,14d,14e,14f,14g,14h,14i,14j,14k,14l 電機子巻線
15 回転子
16 カーボンブラシ
17 ブラシホルダ
18 ナット
19 遠心ファン
20 ディフューザ
21 リターンガイド
22 ファンケーシング
23 つる巻バネ
24 リード線
25 空気取り入れ口
50,50a,50b,50c,50d 磁極片
51,51a,51b,51c,51d ティース
53 ヨーク部
54 磁極部
DESCRIPTION OF SYMBOLS 1 Electric blower 2 Electric motor 3 Blower 4 Housing 5 Stator core 6 Field winding 7 Stator 8, 8a, 8b Bearing 9 End bracket 10 Shaft 11 Armature core 12 Commutator 12a Commutator piece 13, 13a, 13b, 13c , 13d Armature slots 14, 14a, 14b, 14c, 14d, 14e, 14f, 14g, 14h, 14i, 14j, 14k, 14l Armature winding 15 Rotor 16 Carbon brush 17 Brush holder 18 Nut 19 Centrifugal fan 20 Diffuser 21 Return guide 22 Fan casing 23 Winding spring 24 Lead wire 25 Air intake port 50, 50a, 50b, 50c, 50d Magnetic pole piece 51, 51a, 51b, 51c, 51d Teeth 53 Yoke part 54 Magnetic pole part
Claims (5)
前記電動送風機は、前方に交流整流子電動機を備え、前方に送風機を備え
前記交流整流子電動機は、ヨーク部と磁極部とを有する固定子鉄心と、該磁極部に巻装された界磁巻線を含む固定子と、電機子鉄心に形成した、なす形スロット中に電機子巻線を施し、該電機子巻線が接続される整流子とを含む回転子と、該電機子巻線に該整流子とブラシとを介して電力授受を行う2極の交流整流子電動機において、電機子スロット数を奇数とし、整流子セグメント数を電機子スロットの2倍(U=2)とし、δ=Ns/P−y=0.5(δ:端節度,Ns:電機子スロットの数,P:極対数,y:電機子巻線ピッチ)としたことを特徴とする電気掃除機。 A vacuum cleaner body having an electric blower and a dust collector, a hose with one end connected to the vacuum cleaner body, a hand operating part with one end connected to the other end of the hose, and one end other than the hand operating part In a vacuum cleaner comprising: an extension pipe connected to the end; and a suction tool connected to the other end of the extension pipe;
The electric blower includes an AC commutator motor in front and a fan in front. The AC commutator motor includes a stator core having a yoke portion and a magnetic pole portion, and a field winding wound around the magnetic pole portion. A rotor including a stator including a wire, and a commutator to which an armature winding is formed in an egg-shaped slot formed in an armature core, and the armature winding is connected to the armature winding; In a two-pole AC commutator motor that transfers power via the commutator and a brush, the number of armature slots is an odd number, the number of commutator segments is twice the armature slot (U = 2), and δ = A vacuum cleaner characterized in that Ns / P−y = 0.5 (δ: edge degree, Ns: number of armature slots, P: number of pole pairs, y: armature winding pitch).
前記電動送風機は、交流整流子電動機と、送風機とを備え
前記交流整流子電動機は、ヨーク部と磁極部とを有する固定子鉄心と、該磁極部に巻装された界磁巻線を含む固定子と、電機子鉄心に形成した、なす形スロット中に電機子巻線を施し、該電機子巻線が接続される整流子とを含む回転子と、該電機子巻線に該整流子とブラシとを介して電力授受を行う2極の交流整流子電動機において、電機子スロット数を11(奇数)とし、整流子セグメント数を電機子スロットの2倍の22(U=2)としたことを特徴とする電気掃除機。 A vacuum cleaner body having an electric blower and a dust collector, a hose with one end connected to the vacuum cleaner body, a hand operating part with one end connected to the other end of the hose, and one end other than the hand operating part In a vacuum cleaner comprising: an extension pipe connected to the end; and a suction tool connected to the other end of the extension pipe;
The electric blower includes an alternating current commutator motor and a blower. The alternating current commutator electric motor includes a stator core having a yoke part and a magnetic pole part, and a stationary coil including a field winding wound around the magnetic pole part. A rotor including an armature winding formed in a slot formed on the armature core, and a commutator to which the armature winding is connected; and the commutator on the armature winding. In a 2-pole AC commutator motor that transfers power via a brush, the number of armature slots is 11 (odd number), and the number of commutator segments is 22 (U = 2), twice the number of armature slots. An electric vacuum cleaner.
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US9425663B2 (en) | 2012-08-17 | 2016-08-23 | Black & Decker Inc. | Distributed winding arrangement for an electric motor |
USRE48399E1 (en) | 2012-08-17 | 2021-01-19 | Black & Decker Inc. | Distributed winding arrangement for an electric motor |
CN104158376A (en) * | 2014-08-26 | 2014-11-19 | 清华大学 | Brush-contained direct current motor capable of reducing electromagnetic excitation force |
WO2020073405A1 (en) * | 2018-10-10 | 2020-04-16 | 上海理工大学 | Direct current motor |
US11355973B2 (en) | 2018-10-10 | 2022-06-07 | University Of Shanghai For Science And Technology | Direct current motor |
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