JPH08251893A - Submergible pump - Google Patents

Submergible pump

Info

Publication number
JPH08251893A
JPH08251893A JP4460595A JP4460595A JPH08251893A JP H08251893 A JPH08251893 A JP H08251893A JP 4460595 A JP4460595 A JP 4460595A JP 4460595 A JP4460595 A JP 4460595A JP H08251893 A JPH08251893 A JP H08251893A
Authority
JP
Japan
Prior art keywords
rotor
magnetic pole
partition wall
stator
magnetic
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
JP4460595A
Other languages
Japanese (ja)
Other versions
JP2651807B2 (en
Inventor
Souichi Ogawa
創市 小川
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.)
Suiken KK
Original Assignee
Suiken KK
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 Suiken KK filed Critical Suiken KK
Priority to JP7044605A priority Critical patent/JP2651807B2/en
Publication of JPH08251893A publication Critical patent/JPH08251893A/en
Application granted granted Critical
Publication of JP2651807B2 publication Critical patent/JP2651807B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

PURPOSE: To enhance the startability and to improve the efficiency by shaping each magnetic pole section of a stator so as to approach the rotor according as the rotor goes in the same direction along the circumferential direction of the rotor, and providing protrusions for biting into the external surface of a partition wall at the closest end. CONSTITUTION: A pair of magnetic pole sections 60a, 60b to be formed into the shape of an arc so as to sandwich a rotor 53 from both sides outside a partition wall 51 are provided in the laminated core 60 of the stator 52., and the magnetic pole sections 60a, 60b are shaped so as to approach the rotor 53 according as they go in the same direction along the circumferential direction of the rotor 53. Besides, protrusions 63a, 63b for biting into the external surface of the partition wall 51 are provided at the closest end to the rotor 53 of both magnetic pole sections 60a, 60b, and in the external surface of the partition wall 51 grooves 51a, 52b for making the protrusions 63a, 63b bite into are provided stretching in the axial direction. As the result, magnetic suction and repulsion force generated between each magnetic pole section of the stator and the rotor are made ununiform along the circumferential direction, and the generation of rotational vibration of the rotor becomes easy. And it becomes possible to enhance the startability and to increase the efficiency.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、ポンプ室内で回転自在
な羽根車と、非磁性成形材により筒状に形成されてポン
プ室に通じる隔壁内に回転自在に収納されるとともに前
記羽根車に同軸に連結されるロータと、ロータの周方向
に間隔をあけた複数の磁極部を有して隔壁の外方に配設
されるステータとを備え、ステータに交流磁束を発生さ
せることによりロータおよび羽根車を回転させる水中ポ
ンプに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an impeller that is rotatable in a pump chamber and a rotatable housing formed in a cylindrical shape made of a non-magnetic molding material and communicates with the pump chamber. A rotor coaxially connected, and a stator having a plurality of magnetic pole portions spaced apart in the circumferential direction of the rotor and disposed outside the partition wall, and generating an AC magnetic flux on the stator to form the rotor and The present invention relates to a submersible pump for rotating an impeller.

【0002】[0002]

【従来の技術】従来、かかる水中ポンプは、たとえば実
開平2−50199号公報等により既に知られている。
2. Description of the Related Art Conventionally, such a submersible pump is already known, for example, from Japanese Utility Model Laid-Open Publication No. 2-50199.

【0003】[0003]

【発明が解決しようとする課題】上記従来のものでは、
ステータが有する一対の磁極部が、非磁性材料としての
合成樹脂から成る円筒状の隔壁の外面に接触する円弧状
に形成されており、磁極部およびロータ間の間隔が周方
向に沿って一定に設定されていることに伴って、ロータ
および磁極部間に生じる磁気吸引・反発力は周方向に沿
ってほぼ一定となっている。
SUMMARY OF THE INVENTION In the above conventional one,
A pair of magnetic pole portions of the stator are formed in an arc shape in contact with an outer surface of a cylindrical partition wall made of a synthetic resin as a non-magnetic material, and a distance between the magnetic pole portions and the rotor is constant along a circumferential direction. With the setting, the magnetic attraction / repulsion generated between the rotor and the magnetic pole portion is substantially constant along the circumferential direction.

【0004】ところで、かかる水中ポンプの効率を向上
するためには、ロータ側の磁力を強くするのが望ましい
のであるが、上述のように、ロータおよび磁極部間に生
じる磁気吸引・反発力が周方向に沿ってほぼ一定である
ことに起因して、ロータ側の磁力を強くしたときには、
その強い磁力により、休止状態の磁気バランスを解消し
て回転振動をロータに生じさせることが困難であり、ロ
ータ側の磁力を比較的弱く設定せざるを得なかった。
By the way, in order to improve the efficiency of such a submersible pump, it is desirable to increase the magnetic force on the rotor side. However, as described above, the magnetic attraction / repulsive force generated between the rotor and the magnetic pole portion is generated. Due to the fact that it is almost constant along the direction, when the magnetic force on the rotor side is increased,
Due to the strong magnetic force, it is difficult to eliminate the magnetic balance in the rest state and generate rotational vibration in the rotor, and the magnetic force on the rotor side has to be set relatively weak.

【0005】また磁極部およびロータ間の間隔を比較的
小さくすることにより、ロータおよび磁極部間の磁気吸
引・反発力を比較的大きくして効率向上を図ることが可
能であるが、ロータおよび磁極部間には隔壁が介在して
おり、合成樹脂から成る隔壁の厚みを磁極部に対応する
部分で薄くするには成形上限界があり、磁極部およびロ
ータ間の間隔は比較的大きくせざるを得なかった。
Further, by making the distance between the magnetic pole portion and the rotor relatively small, it is possible to make the magnetic attraction and repulsive force between the rotor and the magnetic pole portion relatively large to improve the efficiency. Since there is a partition wall between the parts, there is a molding limit in reducing the thickness of the partition wall made of synthetic resin in the part corresponding to the magnetic pole part, and the gap between the magnetic pole part and the rotor must be relatively large. I didn't get it.

【0006】本発明は、かかる事情に鑑みてなされたも
のであり、起動時にロータに回転振動を与えることを容
易として、磁力の強いロータによる効率向上を果たし得
るようにするとともに、磁極部およびロータ間の間隔を
部分的に小さくすることを可能として効率向上を図った
水中ポンプを提供することを目的とする。
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and makes it possible to easily apply a rotational vibration to a rotor at the time of starting, to improve efficiency by a rotor having a strong magnetic force, and to improve a magnetic pole portion and a rotor. It is an object of the present invention to provide a submersible pump in which the interval between them can be partially reduced to improve the efficiency.

【0007】[0007]

【課題を解決するための手段】上記目的を達成するため
に、請求項1記載の発明は、ポンプ室内で回転自在な羽
根車と、非磁性成形材により筒状に形成されてポンプ室
に通じる隔壁内に回転自在に収納されるとともに前記羽
根車に同軸に連結されるロータと、ロータの周方向に間
隔をあけた複数の磁極部を有して隔壁の外方に配設され
るステータとを備え、ステータに交流磁束を発生させる
ことによりロータおよび羽根車を回転させる水中ポンプ
において、ステータの各磁極部が、ロータの周方向に沿
って同一方向に向かうにつれてロータに近接する形状に
形成され、それらの磁極部のロータへの最近接端には、
隔壁の外面に食い込む突部がそれぞれ設けられることを
特徴とする。
In order to achieve the above object, the invention according to claim 1 is formed into a tubular shape by an impeller rotatable in a pump chamber and a non-magnetic molding material, and communicates with the pump chamber. A rotor rotatably housed in the partition wall and coaxially connected to the impeller; and a stator having a plurality of magnetic pole portions spaced apart in the circumferential direction of the rotor and arranged outside the partition wall. And a submersible pump that rotates a rotor and an impeller by generating alternating magnetic flux in the stator, each magnetic pole portion of the stator is formed in a shape that is closer to the rotor in the same direction along the circumferential direction of the rotor. , The closest ends of their poles to the rotor are
It is characterized in that protrusions that bite into the outer surface of the partition are respectively provided.

【0008】また請求項2記載の発明によれば、上記請
求項1記載の発明の構成に加えて、ステータは、隔壁を
介してロータを両側から挟む一対の磁極部を備える。
According to a second aspect of the present invention, in addition to the configuration of the first aspect, the stator includes a pair of magnetic pole portions sandwiching the rotor from both sides via a partition wall.

【0009】[0009]

【作用】上記請求項1および2記載の発明の構成によれ
ば、ステータの各磁極部およびロータ間に生じる磁気吸
引・反発力がその周方向に沿って不均等となることに伴
い、ロータに回転振動を生じさせ易くなり、それにより
起動性を高めることが可能となる。しかも磁極部に設け
られた突部が隔壁の外面に食い込むことにより、非磁性
成形材から成る隔壁の成形を可能として該隔壁の厚みを
部分的に薄くし、両磁極部およびロータ間の間隔を部分
的に小さくすることにより効率向上を果たすことが可能
となる。
According to the structures of the first and second aspects of the present invention, the magnetic attraction / repulsion force generated between each magnetic pole portion of the stator and the rotor becomes uneven along the circumferential direction thereof, so that the rotor is Rotational vibration is likely to occur, which makes it possible to enhance the startability. In addition, the protrusion provided on the magnetic pole portion bites into the outer surface of the partition wall, whereby the partition wall made of a non-magnetic molding material can be formed, and the thickness of the partition wall is partially reduced, so that the distance between the magnetic pole portion and the rotor is reduced. By partially reducing the size, it becomes possible to improve the efficiency.

【0010】[0010]

【実施例】以下、図面により本発明の実施例について説
明する。
Embodiments of the present invention will be described below with reference to the drawings.

【0011】図1ないし図7は本発明の第1実施例を示
すものであり、図1は濾過装置の縦断面図、図2は水中
ポンプの縦断側面図、図3は図2の3−3線拡大断面
図、図4は図2の4−4線拡大断面図、図5はロータお
よび両磁極部の相対位置を簡略化して示す図、図6は図
2の6−6線拡大断面図、図7は図2の7−7線拡大断
面図である。
1 to 7 show a first embodiment of the present invention. FIG. 1 is a longitudinal sectional view of a filtration device, FIG. 2 is a longitudinal sectional side view of a submersible pump, and FIG. 3 is an enlarged sectional view taken along line 4-4 of FIG. 2, FIG. 5 is a simplified view showing the relative positions of the rotor and both magnetic poles, and FIG. 6 is an enlarged sectional view taken along line 6-6 of FIG. FIG. 7 is an enlarged sectional view taken along line 7-7 of FIG.

【0012】先ず図1において、水槽V内に設けられる
濾過ケースCは、透明もしくは半透明の硬質合成樹脂に
より下端を開放した八角筒形状に形成されるケース主体
1と、合成樹脂により八角形の皿状に形成されてケー
ス主体C1 の下端に着脱可能に嵌着される底蓋C2 とよ
り構成される。ケース主体C1 の上面中央部には排出管
2が上方に向けて一体に突設され、排出管2の周囲でケ
ース主体C1 の上面には多数の上部吸水口3…が穿設さ
れる。またケース主体C1 の側部下縁にはコード挿通溝
5が設けられる。
[0012] First, in FIG. 1, a filtration case C provided in the water tank V includes a case main body C 1, which is formed in an octagonal cylindrical shape having an open lower end of a transparent or semitransparent hard plastic, octagonal synthetic resin more comprised a bottom cover C 2 is formed in a dish shape fitted detachably to the lower end of the case main body C 1. The upper central portion of the case main body C 1 is integrally projecting discharge tube 2 upward, 3 ... many upper water inlet is bored on the upper surface of the case main body C 1 around the exhaust pipe 2 . The cord insertion groove 5 is provided on the side lower edge of the case main body C 1.

【0013】底蓋C2 には、多数の下部吸水口7…が放
射状に並んで設けられるとともに底蓋C2 の中央部に上
端を開口した給気口8が設けられ、該給気口8には、底
蓋C 2 の外側面に外端を開口した給気通路9の内端が接
続される。また給気口8の上端には多孔質材から成るエ
ア放散用のエアストン10が嵌着される。ところで、給
気通路9の外端は、この濾過装置を本実施例のように水
中ポンプ用として使用するときには栓体11により閉じ
られるものであり、またこれをエアポンプ用として使用
するときには、栓体11を取り外した状態でエアポンプ
Paが鎖線で示すように給気通路9の外端に接続され
る。
Bottom cover C2Has many lower water inlets 7 ...
Bottom cover C2On the center of the
An air supply port 8 having an open end is provided, and the air supply port 8 has a bottom.
Lid C 2The inner end of the air supply passage 9 whose outer end is opened on the outer surface of the
Continued. The upper end of the air supply port 8 is made of a porous material.
A airstone 10 for radiation is fitted. By the way,
At the outer end of the air passage 9, this filtering device is used as in this embodiment.
Closed by stopper 11 when used for medium pump
Used as an air pump.
When the air pump is
Pa is connected to the outer end of the air supply passage 9 as shown by a chain line.
It

【0014】底蓋C2 内には、重錘および粗な濾材とし
て作用する小石13…が充填され、底蓋C2 の上端開口
部は蓋板14により閉じられる。この蓋板14には、そ
の全面にわたって多数の流通口15…が穿設される。
The bottom lid C 2 is filled with weights and small stones 13 acting as coarse filter media, and the upper end opening of the bottom lid C 2 is closed by a lid plate 14. A large number of circulation ports 15 are formed in the cover plate 14 over its entire surface.

【0015】濾過ケースC内には濾材保持枠Fが収容さ
れるものであり、この濾材保持枠Fは、排出管2の下端
に通じる排水口18を中央部に有するとともに外周部が
波形に形成される天板17と、底板19とが複数の連結
棒20…により一体に連結されて成るものであり、底板
19には、給気口8に通じる連通口21が中央部に穿設
されるとともに、該連通口21の周囲に多数の小孔22
…が穿設され、各小孔22…は蓋板14の流通口15…
に連通される。
A filter medium holding frame F is accommodated in the filter case C. The filter medium holding frame F has a drain port 18 at the center which communicates with the lower end of the discharge pipe 2 and has an outer peripheral portion formed in a waveform. The top plate 17 and the bottom plate 19 are integrally connected by a plurality of connecting rods 20. The bottom plate 19 is provided with a communication port 21 communicating with the air supply port 8 at the center. And a number of small holes 22 around the communication port 21.
Are formed, and each of the small holes 22 is formed as a flow port 15 of the cover plate 14.
Be communicated to.

【0016】天板19の排水口18の周囲における下面
には、その周方向に等間隔をあけて複数の上部係止突起
23…が突設されており、底板19の上面には、それら
の上部係止突起23…に対応する下部係止突起24…が
連通口21…の周囲に等間隔をあけるようにして突設さ
れる。
A plurality of upper locking projections 23 project from the lower surface of the top plate 19 around the drain port 18 at equal intervals in the circumferential direction, and the upper surface of the bottom plate 19 has The lower locking projections 24 corresponding to the upper locking projections 23 project from the communication ports 21 at equal intervals.

【0017】濾材保持枠Fには、板状をなす密な濾材2
6が保持されるものであり、該濾材26は、その内周面
を連結棒20…に、また外周面を前記上部および下部係
止突起23…,24…に交互にかつジグザク状に係止さ
せるようにしてコルゲート状に屈曲された筒状形態で濾
材保持枠Fに保持される。而して濾過ケースC内の蓋板
14およびケース主体C1 間は、濾材26の外方に位置
する未清浄室32と、濾材26の内方側の清浄室33と
に区画され、未清浄室32には上部吸水口3…が連通さ
れ、清浄室33には小孔15…が連通されるとともに排
出管2が連通される。
The filter medium holding frame F has a plate-shaped dense filter medium 2.
6 is retained, and the filter medium 26 is alternately and zigzag-shaped engaged with the connecting rods 20 on the inner peripheral surface and with the upper and lower locking protrusions 23, 24 on the outer peripheral surface. In this way, it is held in the filter medium holding frame F in a tubular shape bent into a corrugated shape. Thus, the space between the cover plate 14 and the case main body C 1 in the filtration case C is partitioned into an uncleaned room 32 located outside the filter medium 26 and a clean room 33 inside the filter medium 26, The chamber 32 communicates with the upper water inlets 3,..., The cleaning chamber 33 communicates with the small holes 15, and communicates with the discharge pipe 2.

【0018】清浄室33内には水中ポンプPw1 が設置
される。この水中ポンプPw1 が上部に備える吐出管3
8は排出管2の下端に差込み、連通され、水中ポンプP
1に接続されるコード35はコード挿通溝5から外方
に引き出される。而して水中ポンプPw1 が作動する
と、水槽V内の水は2系統に分流して濾過ケースC内に
吸引・濾過される。すなわち水槽V内の水の一部は矢印
aで示すように上部吸水口3…から未清浄室32に吸引
され、密な濾材26を通過して濾過された後に清浄室3
3に入り、水中ポンプPw1 に吸引される。一方、水槽
V内の他の一部の水は矢印bで示すように、底蓋C2
の粗な濾材としての小石13…を通過して濾過された
後、流通口15…、小孔22…を通過して清浄室33に
入り、水中ポンプPw1 に吸引される。水中ポンプPw
1 から吐出される清浄水は、その吐出管38から排出管
2を通って水槽V内に戻されることになり、これにより
水槽V内の水を循環濾過することができる。
A submersible pump Pw 1 is installed in the clean room 33. Discharge pipe 3 provided at the top of this submersible pump Pw 1
8 is inserted into and communicated with the lower end of the discharge pipe 2, and the submersible pump P
The cord 35 connected to w 1 is drawn out from the cord insertion groove 5. When the submersible pump Pw 1 is operated, the water in the water tank V is divided into two systems and sucked and filtered in the filtration case C. That is, a part of the water in the water tank V is sucked into the uncleaned chamber 32 from the upper water suction port 3 ... As shown by the arrow a, passes through the dense filter medium 26, and is then filtered.
Enters the 3, is sucked into the water pump Pw 1. On the other hand, as another part of the water in the water tank V is indicated by an arrow b, after being filtered through the pebbles 13 ... as coarse filter media within the bottom cover C 2, circulation port 15 ... stoma After passing through 22 ..., it enters the clean room 33 and is sucked by the submersible pump Pw 1 . Submersible pump Pw
The clean water discharged from 1 is returned from the discharge pipe 38 through the discharge pipe 2 into the water tank V, whereby the water in the water tank V can be circulated and filtered.

【0019】ところで、水中ポンプPw1 は、本発明に
従って構成されるものであり、水中ポンプPw1 の構成
について以下に詳述する。
By the way, the submersible pump Pw 1 is constructed in accordance with the present invention, and the configuration of the submersible pump Pw 1 will be described in detail below.

【0020】図2および図3において、この水中ポンプ
Pw1 は、モータ401 と、ポンプ41とで構成される
ものであり、そのハウジング42は、非磁性成形材とし
ての合成樹脂により下端を開放した有底の筒状に形成さ
れるモータハウジング43と、モータハウジング43の
下端開口部を液密に閉じる合成樹脂製の底板44と、モ
ータハウジング43側を開放して皿状に形成されるポン
プハウジング45と、該ポンプハウジング45の開口端
を塞ぐようにポンプハウジング45に嵌合される蓋板4
6とを備え、蓋板46を嵌合させたポンプハウジング4
5はモータハウジング43の上端部に着脱可能に連結さ
れる。
[0020] In Figures 2 and 3, the water pump Pw 1 has a motor 40 1, which is composed of a pump 41, the housing 42 has an open lower end of a synthetic resin as a non-magnetic molding material A motor housing 43 formed in a bottomed cylindrical shape, a synthetic resin bottom plate 44 for closing a lower end opening of the motor housing 43 in a liquid-tight manner, and a pump formed in a dish shape with the motor housing 43 side opened. A housing 45 and a cover plate 4 fitted to the pump housing 45 so as to close an open end of the pump housing 45;
6 and a pump housing 4 fitted with a cover plate 46
5 is detachably connected to the upper end of the motor housing 43.

【0021】図4を併せて参照して、モータハウジング
43は、平坦な上部天井壁43aと、上部天井壁43a
との間に段差壁43cを形成して上部天井壁43aより
も下方に位置する平坦な下部天井壁43bとを上端に備
える。下部天井壁43bには、一直線上に並ぶ一対の嵌
合溝47,48が設けられるとともに、それらの嵌合溝
47,48を相互間に挟んで上方に隆起した一対の隆起
部49,50が設けられる。而して両隆起部49,50
は、両嵌合溝47,48の中心線上に中心を配置した仮
想円の内面を沿わせるようにした円弧状にそれぞれ形成
される。また下部天井壁43bには、記仮想円に沿う内
面を有して下端を閉塞した有底円筒状の隔壁51が、そ
の上端を両隆起部49,50に連ならせるとともにモー
タハウジング43内を下方に延びるようにして一体に連
設される。
Referring also to FIG. 4, the motor housing 43 includes a flat upper ceiling wall 43a and an upper ceiling wall 43a.
And a flat lower ceiling wall 43b located below the upper ceiling wall 43a at the upper end. The lower ceiling wall 43b is provided with a pair of fitting grooves 47, 48 aligned in a straight line, and a pair of raised portions 49, 50 raised upward with the fitting grooves 47, 48 interposed therebetween. Provided. Thus, both ridges 49, 50
Are each formed in an arc shape so that the inner surfaces of a virtual circle centered on the center lines of both fitting grooves 47 and 48 are aligned. The lower ceiling wall 43b has a bottomed cylindrical partition wall 51 having an inner surface along the virtual circle and having a closed lower end. The upper end of the partition wall 51 is connected to the raised portions 49 and 50, and the inside of the motor housing 43 is connected. They are integrally provided so as to extend downward.

【0022】モータ401 は、モータハウジング43内
に固定的に配設されるステータ52 1 と、隔壁51内に
回転自在に収納されるロータ53とを備える。隔壁51
の下端には、上端を開放した有底円筒状の軸受部54が
設けられており、この軸受部54にゴム製の軸受部材5
5が嵌合される。而して隔壁51内には上下に延びる軸
56が同軸に配置されており、この軸56の下端が軸受
部材55に嵌合、支持される。
Motor 401Is in the motor housing 43
Stator 52 fixedly disposed on 1And inside the partition 51
And a rotor 53 rotatably housed. Partition wall 51
At the lower end of the
The bearing portion 54 is provided with a rubber bearing member 5.
5 are fitted. Thus, a shaft extending vertically in the partition wall 51
56 is arranged coaxially, and the lower end of this shaft 56 is a bearing.
It is fitted and supported by the member 55.

【0023】ロータ53は、たとえば周方向に等間隔を
あけた2個所に相互に極性を異ならせた磁極を有するロ
ータマグネットであり、該ロータ53を同軸に貫通する
円筒状にして合成樹脂により形成される軸受筒57に一
体化される。而して軸受筒57内には軸56が挿通され
るものであり、軸受筒57の下端がワッシャ58を介し
て軸受部材55にスラスト支持される。
The rotor 53 is, for example, a rotor magnet having magnetic poles having different polarities at two locations spaced at equal intervals in the circumferential direction. The rotor 53 is formed of a synthetic resin into a cylindrical shape that penetrates the rotor 53 coaxially. The bearing cylinder 57 is integrated. The shaft 56 is inserted into the bearing cylinder 57, and the lower end of the bearing cylinder 57 is thrust supported by the bearing member 55 via the washer 58.

【0024】ステータ521 は、略U字形に形成された
複数枚の鉄心板が相互に積層されて成る積層コア60
と、該積層コア60に対をなして装着されるボビン6
1,61と、各ボビン61,61にそれぞれ巻装される
コイル62,62とで構成されるものであり、積層コア
60には、隔壁51の外方でロータ53を両側から挟む
ようにしてそれぞれ円弧状に形成される一対の磁極部6
0a,60bが設けられる。
The stator 52 1 is a laminated core 60 in which a plurality of U-shaped iron core plates are laminated together.
And the bobbin 6 mounted in pairs on the laminated core 60.
1 and 61, and coils 62 and 62 wound around the bobbins 61 and 61, respectively. The laminated core 60 has a circular shape so as to sandwich the rotor 53 from both sides outside the partition wall 51. A pair of magnetic pole portions 6 formed in an arc shape
0a and 60b are provided.

【0025】図5を併せて参照して、ステータ52の両
磁極部60a,60bは、ロータ53の周方向に沿って
同一方向(図3および図5で反時計方向)に向かうにつ
れてロータ53に近接する形状に形成される。すなわち
両磁極部60a,60bのロータ53側の面は、ロータ
53の回転中心CR を相互間の中央部に挟むようにして
前記回転中心CR の両側に偏心量δずつ偏心した位置を
中心CS1,CS2とした半径RS1,RS2の円弧面となるよ
うに形成されるものであり、半径RS1,RS2は、ロータ
53の外周半径RR よりも大きく、かつRS1=RS2に設
定されている。これにより、両磁極部60a,60b
は、図5でロータ53の周方向に沿って反時計方向に進
むにつれてロータ53に近接することになる。
Referring also to FIG. 5, the two magnetic pole portions 60a and 60b of the stator 52 move toward the rotor 53 in the same direction (counterclockwise in FIGS. 3 and 5) along the circumferential direction of the rotor 53. It is formed in an adjacent shape. That is, the surfaces of the magnetic pole portions 60a and 60b on the rotor 53 side are centered at positions C S1 that are eccentric by the eccentricity δ on both sides of the rotation center C R so that the rotation center C R of the rotor 53 is sandwiched between the center portions. , C S2 , and the radius R S1 , R S2 is an arc surface. The radius R S1 , R S2 is larger than the outer radius R R of the rotor 53, and R S1 = R S2 Is set to. Thereby, both magnetic pole portions 60a, 60b
Will approach the rotor 53 as it moves counterclockwise along the circumferential direction of the rotor 53 in FIG.

【0026】しかも両磁極部60a,60bのロータ5
3への最近接端には、隔壁51の外面に食い込む突部6
3a,63bが設けられる。一方、隔壁51の外面に
は、それらの突部63a,63bを食い込ませるための
溝51a,51bが軸方向に延びてそれぞれ設けられ
る。
Moreover, the rotor 5 of the two magnetic pole portions 60a, 60b
At the end closest to 3 is a projection 6 which cuts into the outer surface of the bulkhead 51.
3a and 63b are provided. On the other hand, grooves 51a and 51b for penetrating the protrusions 63a and 63b are provided on the outer surface of the partition wall 51 so as to extend in the axial direction.

【0027】図6および図7を併せて参照して、ポンプ
41は、ポンプハウジング45および蓋板46間に形成
されるポンプ室64内に、モータ401 のロータ53に
同軸に連結される羽根車65が回転自在に収納されて成
るものである。
[0027] Referring also to FIGS. 6 and 7, the vane pump 41, the pump chamber 64 formed between the pump housing 45 and cover plate 46, which is coaxially connected to the rotor 53 of the motor 40 1 The vehicle 65 is rotatably housed.

【0028】ポンプハウジング45の内面には、中央部
に吸水孔46aを有して円盤状に形成される蓋板46の
外縁を係止させる環状の段部66が設けられており、蓋
板46は段部66に係止するまでポンプハウジング45
内に嵌合される。而してポンプハウジング45の下端に
は、蓋板46を両隆起部49,50の上端と段部66と
の間に挟むようにして両隆起部49,50が嵌合され
る。しかも両隆起部49,50の周方向に沿う一端上部
には外方に突出した係合爪67,68が設けられてお
り、ポンプハウジング45の内面には、それらの係合爪
67,68をそれぞれ挿入させる凹部69,70と、各
凹部69,70の周方向一側で係合爪67,68を弾発
係止可能な係止鍔部71,72とが設けられており、ポ
ンプハウジング45は、凹部69,70に係合爪67,
68を挿入した状態でポンプハウジング45をわずかに
角変位せしめることにより係合爪67,68を係止鍔部
71,72に係合させるようにしたバヨネット結合によ
り、モータハウジング43に連結されることになる。
On the inner surface of the pump housing 45, there is provided an annular step portion 66 which has a water absorption hole 46a in the central portion thereof and which locks the outer edge of the disk-shaped lid plate 46. The pump housing 45 until it stops at the step 66.
Fit inside. The two raised portions 49 and 50 are fitted to the lower end of the pump housing 45 such that the lid plate 46 is sandwiched between the upper ends of the raised portions 49 and 50 and the step 66. In addition, engaging claws 67, 68 projecting outward are provided on the upper ends of the raised portions 49, 50 along the circumferential direction, and the engaging claws 67, 68 are provided on the inner surface of the pump housing 45. The pump housing 45 is provided with concave portions 69 and 70 to be inserted respectively, and locking flange portions 71 and 72 capable of resiliently locking the engaging claws 67 and 68 on one circumferential side of the concave portions 69 and 70. The engaging claws 67,
The pump housing 45 is slightly angularly displaced with the 68 inserted so that the engaging claws 67 and 68 are engaged with the locking flanges 71 and 72, and are connected to the motor housing 43 by bayonet coupling. become.

【0029】羽根車65は、円筒状の軸受筒73と、該
軸受筒73から放射状に延設される複数たとえば4枚の
羽根74…とで構成されるものであり、軸受筒73に
は、モータ401 のロータ53を貫通した軸56が挿通
される。一方、ポンプハウジング45の上端部には嵌合
孔75が設けられており、上端を閉塞した有底円筒状に
形成されるゴム製の軸受部材76が嵌合孔75に下方か
ら嵌合、係止され、軸56の上端は該軸受部材76で支
持される。しかも軸受筒73の上端および軸受部材76
間にはリング状のワッシャ77が介装される。
The impeller 65 comprises a cylindrical bearing cylinder 73 and a plurality of, for example, four blades 74 extending radially from the bearing cylinder 73. The shaft 56 that penetrates the rotor 53 of the motor 40 1 is inserted. On the other hand, a fitting hole 75 is provided at the upper end of the pump housing 45, and a rubber bearing member 76 formed in a cylindrical shape with a closed bottom whose upper end is closed is fitted into the fitting hole 75 from below. The shaft 56 is stopped, and the upper end of the shaft 56 is supported by the bearing member 76. Moreover, the upper end of the bearing cylinder 73 and the bearing member 76
A ring-shaped washer 77 is interposed between them.

【0030】モータ401 側の軸受筒57の上端には、
軸56のほぼ半周を囲撓する係止部57aが設けられ、
ポンプ41側の軸受筒73の下端には、軸56のほぼ半
周を囲撓する係止部73aが設けられる。而して軸56
の軸線に沿う羽根車65の上方への移動は軸受筒73の
上端がワッシャ77を介して軸受部材76に当接するこ
とにより規制され、また羽根車65の下方への移動は係
止部73aが係止部57aに当接することにより規制さ
れる。しかも両係止部57a,73aは、いずれか一方
が軸56のまわりに回転するときに他方に係止するもの
であり、したがってロータ53の回転に応じて羽根車6
5も回転することになる。
[0030] the upper end of the bushing 57 of the motor 40 1 side,
A locking portion 57a is provided that surrounds and flexes substantially half the circumference of the shaft 56,
At the lower end of the bearing cylinder 73 on the pump 41 side, a locking portion 73a is provided to surround and bend substantially half the circumference of the shaft 56. Thus axis 56
The upward movement of the impeller 65 along the axis of is restricted by the upper end of the bearing tube 73 abutting on the bearing member 76 via the washer 77, and the downward movement of the impeller 65 is controlled by the locking portion 73a. It is regulated by contacting the locking portion 57a. In addition, the locking portions 57a and 73a lock one with the other when the one rotates around the shaft 56. Therefore, the impeller 6 is rotated in accordance with the rotation of the rotor 53.
5 will also rotate.

【0031】蓋板46には、その中央部の吸水孔46a
に連なって隔壁51内を下方に延びる導水管78の上端
が一体に連設されており、導水管78の下端には、モー
タハウジング43の両嵌合溝47,48に上方から嵌合
して外端を開放した吸水管79,80の内端が直角に連
設される。
The lid plate 46 has a water absorption hole 46a at the center thereof.
An upper end of a water guide pipe 78 extending downward in the partition wall 51 is integrally connected with the lower end of the water guide pipe 78, and is fitted into the fitting grooves 47, 48 of the motor housing 43 from above. The inner ends of the water-absorbing pipes 79 and 80 whose outer ends are open are connected at right angles.

【0032】またポンプハウジング45の側部には、ポ
ンプ室64に通じて上方に延びる吐出管38が一体に連
設されており、この吐出管38が、図1で示すように濾
過ケースCの排出管2に差し込まれることになる。
Further, a discharge pipe 38 extending upward through the pump chamber 64 is integrally connected to a side portion of the pump housing 45. The discharge pipe 38 of the filtration case C is shown in FIG. It will be inserted into the discharge pipe 2.

【0033】次にこの実施例の作用について説明する
と、水中ポンプPw1 にあっては、コイル62,62を
電力付勢してステータ521 に交流磁束を発生させるこ
とによるロータ53の回転に伴い、羽根車65がポンプ
室64内で回転し、両吸水管79,80から導水管78
を経てポンプ室64に吸引された水は、羽根車65の羽
根74…から遠心力を与えられることにより、吐出管3
8から上方に吐出されることになる。
[0033] Next, to explain the action of this embodiment, in the water pump Pw 1, with the rotation of the rotor 53 by bringing the coil 62, 62 and the power energized to generate an alternating magnetic flux in the stator 52 1 , The impeller 65 rotates in the pump chamber 64, and the water introduction pipe 78 is
The water sucked into the pump chamber 64 via the discharge pipe 3 is given a centrifugal force from the blades 74 of the impeller 65.
8 is discharged upward.

【0034】このような水中ポンプPw1 におけるモー
タ40において、ステータ521 の両磁極部60a,6
0bは、ロータ53の周方向に沿って同一方向に向かう
につれてロータ53に近接する形状に形成されており、
ロータ53および両磁極部60a,60b間に生じる磁
気吸引・反発力は、ロータ53の周方向一方向に向かう
につれて強くなる。したがってロータ53が休止状態に
在るときにコイル62を励磁してロータ53の回転を起
動させる際に、ロータ53および両磁極部60a,60
b間の磁気吸引、反発力が周方向に沿ってアンバランス
となり、ステータ521 で発生させる磁力すなわちコイ
ル62の起動時の消費電力を比較的小さくしてもロータ
53を容易に起動させることができる。
[0034] In the motor 40 in such a submerged pump Pw 1, the stator 52 1 of the two magnetic pole portions 60a, 6
0b is formed in a shape that approaches the rotor 53 in the same direction along the circumferential direction of the rotor 53,
The magnetic attraction / repulsion generated between the rotor 53 and the magnetic pole portions 60a and 60b becomes stronger in one circumferential direction of the rotor 53. Therefore, when exciting the coil 62 to start the rotation of the rotor 53 when the rotor 53 is in the rest state, the rotor 53 and the two magnetic pole portions 60a, 60
the magnetic attraction between the b, becomes unbalanced repulsive force along the circumferential direction, be activated also the rotor 53 easily and relatively small power consumption when starting the force i.e. the coil 62 to be generated in the stator 52 1 it can.

【0035】このように起動性を向上し得ることに伴っ
て、ロータマグネットであるロータ53を磁力の強い異
方性のマグネットとしても、ロータ53を容易に起動せ
しめることが可能であり、より効率の優れたモータ40
1 を得ることが可能である。
With the improved startability, it is possible to easily start the rotor 53 even if the rotor 53, which is a rotor magnet, is an anisotropic magnet having a strong magnetic force. Excellent motor 40
1 it is possible to obtain.

【0036】しかも起動を容易としたことに伴う消費電
力低減により、ステータ521 で生じる発熱量を減少さ
せることが可能であり、従来では、冷却用の水を隔壁5
1およびロータ53間に流通させて過熱を防止するため
に隔壁51およびロータ53間の間隔を比較的大きく設
定せざるを得ず、両磁極部60a,60bおよびロータ
53間の間隔も比較的大きくなっていたのであるが、上
述のように発熱量が減少することに伴って、両磁極部6
0a,60bおよびロータ53間の間隔を比較的小さく
設定することが可能となり、効率をより増大することが
可能となる。
Moreover, the amount of heat generated in the stator 52 1 can be reduced due to the reduction in power consumption associated with the ease of start-up.
In order to prevent overheating by circulating between the rotor 1 and the rotor 53, the interval between the partition wall 51 and the rotor 53 must be set relatively large, and the interval between the magnetic pole portions 60a, 60b and the rotor 53 is also relatively large. However, with the decrease in the amount of heat generated as described above, both magnetic pole portions 6
It is possible to set the interval between Oa, 60b and the rotor 53 relatively small, and it is possible to further increase the efficiency.

【0037】さらに両磁極部60a,60bにおいてロ
ータ53に最も近接した端部には、隔壁51の外面に食
い込む突部63a,63bが設けられている。したがっ
て合成樹脂から成る隔壁51の一部肉厚を薄くすること
により、隔壁51に成形上の問題を生じさせることを回
避した上で、両磁極部60a,60bおよひロータ53
間の間隔の一部を比較的小さくすることができ、それに
より両磁極部60a,60bおよびロータ53間に生じ
る磁力をより強くして、効率向上に寄与することができ
る。
Further, at both end portions of the magnetic pole portions 60a, 60b closest to the rotor 53, protrusions 63a, 63b that bite into the outer surface of the partition wall 51 are provided. Therefore, by partially reducing the wall thickness of the partition wall 51 made of a synthetic resin, it is possible to prevent the partition wall 51 from causing a molding problem, and at the same time, the magnetic pole portions 60a and 60b and the rotor 53 are prevented.
A part of the space between them can be made relatively small, whereby the magnetic force generated between the magnetic pole portions 60a and 60b and the rotor 53 can be made stronger, which can contribute to an improvement in efficiency.

【0038】図8は本発明の第2実施例を示すものであ
り、上記第1実施例に対応する部分には同一の参照符号
を付す。
FIG. 8 shows a second embodiment of the present invention, in which parts corresponding to those of the first embodiment are designated by the same reference numerals.

【0039】この水中ポンプPw2 は、モータ402
有して水槽Vの隅角部に設置されるものであり、モータ
ハウジング43´は、水槽Vの隅角部に対応した断面形
状を有するように形成される。而してモータハウジング
43´内に配設されるステータ522 は、略J字形に形
成された複数枚の鉄心板が相互に積層されて成るととも
に相互に結合されて略C字形となる一対の積層コア60
1 ,602 と、両積層コア601 ,602 の結合部に装
着されるボビン61と、ボビン61に巻装されるコイル
62とで構成されるものであり、両積層コア601 ,6
2 には、隔壁51の外方でロータ53を両側から挟む
ようにしてそれぞれ円弧状に形成される一対の磁極部6
0a´,60b´が設けられる。それらの磁極部60a
´,60b´は、ロータ53の周方向に沿って同一方向
に向かうにつれてロータ53に近接する形状に形成され
る。しかも両磁極部60a´,60b´のロータ53へ
の近接端には、隔壁51の外面に設けられた溝51a,
51bに嵌合するようにして該隔壁51の外面に食い込
む突部63a´,63b´が設けられる。
[0039] The water pump Pw 2 is intended to be installed in corners of the tank V and a motor 40 2, the motor housing 43 'has a cross-sectional shape corresponding to the corners of the tank V It is formed as follows. The stator 52 2 disposed within the motor housing 43 'by Thus, the pair of the plurality of core plates formed into a substantially J-shape is substantially C-shape are coupled together with formed by laminating with each other Laminated core 60
1, and 60 2, a bobbin 61 mounted on the coupling portions of the laminated core 60 1, 60 2, which is composed of a coil 62 which is wound around the bobbin 61, both the laminated core 60 1, 6
0 2 includes a pair of magnetic pole portions 6 formed in an arc shape so as to sandwich the rotor 53 from both sides outside the partition wall 51.
0a 'and 60b' are provided. Those magnetic pole parts 60a
′ And 60b ′ are formed in a shape that approaches the rotor 53 in the same direction along the circumferential direction of the rotor 53. Moreover, at the ends of both magnetic pole portions 60a 'and 60b' close to the rotor 53, the grooves 51a provided on the outer surface of the partition wall 51,
Protrusions 63a 'and 63b' are provided so as to fit into the outer surface of the partition wall 51 so as to fit into the 51b.

【0040】この第2実施例によっても上記第1実施例
と同様の効果を奏することができる。
The second embodiment can also achieve the same effect as the first embodiment.

【0041】以上、本発明の実施例を説明したが、本発
明は上記実施例に限定されるものではなく、特許請求の
範囲に記載された本発明を逸脱することなく種々の設計
変更を行うことが可能である。
Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the appended claims. It is possible.

【0042】たとえば、ロータマグネットに代えてロー
タ53をかご形のものとしてもよい。
For example, the rotor 53 may be in the form of a cage instead of the rotor magnet.

【0043】[0043]

【発明の効果】以上のように請求項1および2記載の発
明によれば、ステータの各磁極部およびロータ間に生じ
る磁気吸引・反発力をその周方向に沿って不均等とする
ことにより、ロータの回転振動を生じ易くすることがで
き、それにより起動性を高めることができ、磁力の強い
ロータを用いて効率向上を図ることができ、また隔壁の
成形上に問題が生じることを回避して磁極部およびロー
タ間の間隔を一部小さくし、効率をより向上することが
可能となる。
As described above, according to the first and second aspects of the present invention, the magnetic attraction and repulsive forces generated between the magnetic poles of the stator and the rotor are made uneven along the circumferential direction, Rotational vibration of the rotor can be easily generated, which can improve the startability, can improve the efficiency by using a rotor with a strong magnetic force, and can avoid a problem in forming the partition wall. It is possible to further improve the efficiency by partially reducing the distance between the magnetic pole portion and the rotor.

【図面の簡単な説明】[Brief description of drawings]

【図1】第1実施例の濾過装置の縦断面図である。FIG. 1 is a longitudinal sectional view of a filtration device according to a first embodiment.

【図2】水中ポンプの縦断側面図である。FIG. 2 is a vertical sectional side view of the submersible pump.

【図3】図2の3−3線拡大断面図である。FIG. 3 is an enlarged sectional view taken along line 3-3 of FIG.

【図4】図2の4−4線拡大断面図である。4 is an enlarged cross-sectional view taken along line 4-4 of FIG.

【図5】ロータおよび両磁極部の相対位置を簡略化して
示す図である。
FIG. 5 is a diagram schematically showing the relative positions of a rotor and both magnetic pole portions.

【図6】図2の6−6線拡大断面図である。FIG. 6 is an enlarged sectional view taken along line 6-6 of FIG. 2;

【図7】図2の7−7線拡大断面図である。7 is an enlarged sectional view taken along line 7-7 of FIG.

【図8】第2実施例の図3に対応する断面図である。FIG. 8 is a sectional view of a second embodiment corresponding to FIG.

【符号の説明】[Explanation of symbols]

51・・・隔壁 521 ,522 ・・・ステータ 53・・・ロータ 60a,60a´,60b,60b´・・・磁極部 63a,63a´,63b,63b´・・・突部 64・・・ポンプ室 65・・・羽根車51 ... Partition wall 52 1 , 52 2 ... Stator 53 ... Rotor 60a, 60a ', 60b, 60b' ... Magnetic pole part 63a, 63a ', 63b, 63b' ... Projection part 64 ...・ Pump chamber 65 ・ ・ ・ impeller

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 ポンプ室(64)内で回転自在な羽根車
(65)と、非磁性成形材により筒状に形成されてポン
プ室(64)に通じる隔壁(51)内に回転自在に収納
されるとともに前記羽根車(65)に同軸に連結される
ロータ(53)と、ロータ(53)の周方向に間隔をあ
けた複数の磁極部(60a,60b;60a´,60b
´)を有して隔壁(51)の外方に配設されるステータ
(52 1 ,522 )とを備え、ステータ(521 ,52
2 )に交流磁束を発生させることによりロータ(53)
および羽根車(65)を回転させる水中ポンプにおい
て、ステータ(521 ,522 )の各磁極部(60a,
60b;60a´,60b´)が、ロータ(53)の周
方向に沿って同一方向に向かうにつれてロータ(53)
に近接する形状に形成され、それらの磁極部(60a,
60b;60a´,60b´)のロータ(53)への最
近接端には、隔壁(51)の外面に食い込む突部(63
a,63b;63a´,63b´)がそれぞれ設けられ
ることを特徴とする水中ポンプ。
1. An impeller rotatable in a pump chamber (64)
(65) and a non-magnetic molding material formed into a cylindrical shape
It is rotatably stored in the partition (51) leading to the chamber (64).
And is coaxially connected to the impeller (65).
There is an interval in the circumferential direction of the rotor (53) and the rotor (53).
A plurality of pole pieces (60a, 60b; 60a ', 60b)
′) Having a stator arranged outside the partition wall (51)
(52 1, 522) And a stator (521, 52
2) By generating an AC magnetic flux in the rotor (53)
And a submersible pump that rotates the impeller (65)
The stator (521, 522) Each magnetic pole part (60a,
60b; 60a ', 60b') is the circumference of the rotor (53)
Rotor (53) as you go in the same direction along the direction
And a magnetic pole portion (60a, 60a,
60b; 60a ', 60b') to the rotor (53)
At the proximal end, a protrusion (63) that cuts into the outer surface of the partition wall (51).
a, 63b; 63a ', 63b') are respectively provided
A submersible pump characterized by that.
【請求項2】 ステータ(521 ,522 )は、隔壁
(51)を介してロータ(53)を両側から挟む一対の
磁極部(60a,60b;60a´,60b´)を備え
ることを特徴とする請求項1記載の水中ポンプ。
2. The stator (52 1 , 52 2 ) includes a pair of magnetic pole portions (60a, 60b; 60a ′, 60b ′) sandwiching the rotor (53) from both sides via a partition wall (51). The submersible pump according to claim 1, wherein
JP7044605A 1995-03-03 1995-03-03 underwater pump Expired - Fee Related JP2651807B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7044605A JP2651807B2 (en) 1995-03-03 1995-03-03 underwater pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7044605A JP2651807B2 (en) 1995-03-03 1995-03-03 underwater pump

Publications (2)

Publication Number Publication Date
JPH08251893A true JPH08251893A (en) 1996-09-27
JP2651807B2 JP2651807B2 (en) 1997-09-10

Family

ID=12696087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7044605A Expired - Fee Related JP2651807B2 (en) 1995-03-03 1995-03-03 underwater pump

Country Status (1)

Country Link
JP (1) JP2651807B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010130832A (en) * 2008-11-28 2010-06-10 Mitsubishi Electric Corp Commutator motor, blower, and vacuum cleaner
CN106887910A (en) * 2017-02-27 2017-06-23 叶露微 Small centrifugal pump driven by U-shaped iron core single-phase permanent magnet synchronous motor
CN108110965A (en) * 2017-12-25 2018-06-01 中山市富迪电器有限公司 Draining pump motor preparation method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54107712A (en) * 1978-02-13 1979-08-23 Seiko Instr & Electronics Ltd Transport mechanism of magnetic tape of portable microminiature tape recorder
JPS54164203A (en) * 1978-03-08 1979-12-27 Baensch Tetra Werke Single synchronous motor
JPS5755277U (en) * 1980-09-18 1982-03-31
JPS6118324A (en) * 1984-05-14 1986-01-27 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Pressure pump having rotor liquid-immersed drive motor
JPH0523784U (en) * 1991-05-17 1993-03-26 株式会社荏原製作所 DC brushless motor for magnet motor pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54107712A (en) * 1978-02-13 1979-08-23 Seiko Instr & Electronics Ltd Transport mechanism of magnetic tape of portable microminiature tape recorder
JPS54164203A (en) * 1978-03-08 1979-12-27 Baensch Tetra Werke Single synchronous motor
JPS5755277U (en) * 1980-09-18 1982-03-31
JPS6118324A (en) * 1984-05-14 1986-01-27 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Pressure pump having rotor liquid-immersed drive motor
JPH0523784U (en) * 1991-05-17 1993-03-26 株式会社荏原製作所 DC brushless motor for magnet motor pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010130832A (en) * 2008-11-28 2010-06-10 Mitsubishi Electric Corp Commutator motor, blower, and vacuum cleaner
CN106887910A (en) * 2017-02-27 2017-06-23 叶露微 Small centrifugal pump driven by U-shaped iron core single-phase permanent magnet synchronous motor
CN108110965A (en) * 2017-12-25 2018-06-01 中山市富迪电器有限公司 Draining pump motor preparation method

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