JPH1037888A - Magnetically connecting pump - Google Patents
Magnetically connecting pumpInfo
- Publication number
- JPH1037888A JPH1037888A JP8191126A JP19112696A JPH1037888A JP H1037888 A JPH1037888 A JP H1037888A JP 8191126 A JP8191126 A JP 8191126A JP 19112696 A JP19112696 A JP 19112696A JP H1037888 A JPH1037888 A JP H1037888A
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- foreign matter
- pump
- spiral
- wall
- 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
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は内燃機関及び電気自
動車の冷却系統に設けられるウォータポンプ等に使用さ
れる磁気結合ポンプに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic coupling pump used for a water pump provided in a cooling system of an internal combustion engine and an electric vehicle.
【０００２】[0002]
【従来の技術】従来、この種の磁気結合ポンプとして
は、例えば、図３に示すものが知られている。2. Description of the Related Art Conventionally, as this type of magnetic coupling pump, for example, the one shown in FIG. 3 is known.
【０００３】この磁気結合ポンプは、吸込口５１ａ，吐
出口５１ｂを有する円筒状のハウジング５１と、ハウジ
ング５１に内装されてポンプ室５２とモータ室５３とを
区画する隔壁体５４と、ステータコイル５７が巻かれた
複数のステータコア５６を有しモータ室５３内に設けら
れたステータ５５と、羽根５９およびロータマグネット
６０ならびに回転軸６１を有してポンプ室５２内に回動
自在に設けられたロータ５８とを備えて構成されてい
る。なお、回転軸６１は、軸受を備えた軸受部５４ａに
より軸支されている。This magnetic coupling pump comprises a cylindrical housing 51 having a suction port 51a and a discharge port 51b, a partition wall 54 provided inside the housing 51 to partition a pump chamber 52 and a motor chamber 53, and a stator coil 57. A stator 55 having a plurality of stator cores 56 wound therein and provided in a motor chamber 53, and a rotor having blades 59, a rotor magnet 60 and a rotating shaft 61 and rotatably provided in a pump chamber 52. 58. The rotating shaft 61 is supported by a bearing 54a having a bearing.
【０００４】そして、上記構成の磁気結合ポンプは、各
ステータコイル５７へ励磁電流を流して複数のステータ
コア５６に回転磁界を発生させ、ロータマグネット６０
に回転トルクを発生させることによりロータ５８を回転
させている。この回転により、羽根５９が吸込口５１ａ
より流体をポンプ室５２内に吸込み、吐出口５１ｂより
吐出するように動作している。In the magnetic coupling pump having the above structure, an exciting current is applied to each of the stator coils 57 to generate a rotating magnetic field in the plurality of stator cores 56.
The rotation of the rotor 58 is caused by generating a rotation torque. By this rotation, the blade 59 is moved to the suction port 51a.
The operation is performed such that the fluid is sucked into the pump chamber 52 and discharged from the discharge port 51b.
【０００５】[0005]
【発明が解決しようとする課題】しかし、この流体中に
は、微細な異物が混入している場合があり、その異物が
ポンプ室内や、回転軸と軸受の間のすきまに堆積して、
回転軸等の摩耗原因となっていた。However, fine foreign matter may be mixed in the fluid, and the foreign matter is deposited in the pump chamber or in the clearance between the rotating shaft and the bearing,
This caused wear of the rotating shaft and the like.
【０００６】そのため、特開平６−８８５８８号公報に
は、羽根車の主軸を収容する軸受ハウジングに、流体が
流入する複数のスリットを放射状に設けて、流体中の異
物を捕捉する技術が提案されている。For this reason, Japanese Patent Application Laid-Open No. Hei 6-88588 proposes a technique in which a plurality of slits into which a fluid flows radially are provided in a bearing housing for accommodating a main shaft of an impeller, and foreign substances in the fluid are captured. ing.
【０００７】しかしながら、上述したスリットで捕捉さ
れた異物は、流速により押されて移動し、スリットから
除去される。すなわち、異物は、一旦スリットに捕捉さ
れるものの、流体中へ再び放出されるため、流体系統が
循環回路の場合、流体中から異物が除去されず、異物が
流路を循環し続けて堆積，捕捉を繰り返すという問題が
ある。[0007] However, the foreign matter caught by the above-mentioned slit is pushed by the flow velocity, moves, and is removed from the slit. That is, although the foreign matter is once captured by the slit, it is released again into the fluid. Therefore, when the fluid system is a circulation circuit, the foreign matter is not removed from the fluid, and the foreign matter continues to circulate in the flow path and accumulates. There is a problem of repeated capture.
【０００８】また、ポンプをうず巻きポンプとする場
合、うず形のポンプ室は、一般には、ポンプ室の外周壁
の肉厚を漸増させて巴形状に形成することが行われてい
た（例えば、実開昭６３−３８６９６号公報参照）。し
かし、うず形室の巴形状の外周壁は、肉厚が偏肉状態と
なり、成形時に成形歪が生ずるという問題があった。Further, when the pump is a centrifugal pump, the spiral pump chamber is generally formed in a tom-shape by gradually increasing the thickness of the outer peripheral wall of the pump chamber (for example, a real pump chamber). See JP-A-63-38696). However, there is a problem that the tom-shaped outer peripheral wall of the spiral chamber has an uneven wall thickness and molding distortion occurs during molding.
【０００９】本発明は、上記問題点にかんがみてなされ
たものであり、流体中の異物を確実に除去するととも
に、成形歪の少ないうず形室を備えた磁気結合ポンプを
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 problems, and has as its object to provide a magnetic coupling pump provided with a spiral chamber having a small forming distortion while reliably removing foreign substances in a fluid. I do.
【００１０】[0010]
【課題を解決するための手段】この発明は上記目的を達
成するためになされたものであり、請求項１の磁気結合
ポンプは、吸込口および吐出口を有し有底円筒状に形成
されたハウジングと、前記ハウジングに内装され前記吸
込口および吐出口に連通するポンプ室とモータ室とを区
画する隔壁体と、各々ステータコイルが巻かれた複数の
ステータコアを有し前記モータ室内に設けられたステー
タと、多数の羽根および前記複数のステータコアに対向
して配設されたロータマグネットならびに前記隔壁体に
軸支された回転軸を有して前記ポンプ室内に回動自在に
設けられたロータと、を備えた磁気結合ポンプであっ
て、前記隔壁体は、前記ポンプ室内にうず形室を形成す
るとともに該うず形室と前記吐出口とを連通する噴流口
を有するうず形壁を備え、前記うず形壁と前記ハウジン
グ内壁との間に異物溜め部が形成されるとともに、前記
異物溜め部の開口が前記噴流口の近傍に設けられてなる
ことを特徴とする磁気結合ポンプである。SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and a magnetic coupling pump according to claim 1 is formed in a bottomed cylindrical shape having a suction port and a discharge port. A housing is provided in the motor chamber, the housing having a partition body which is provided in the housing and partitions a pump chamber and a motor chamber communicating with the suction port and the discharge port, and a plurality of stator cores each wound with a stator coil. A stator, a rotor magnet rotatably provided in the pump chamber, having a rotor magnet disposed opposite to the plurality of blades and the plurality of stator cores, and a rotating shaft rotatably supported by the partition body; Wherein the partition wall forms a spiral chamber in the pump chamber and has a spiral wall having a jet port communicating the spiral chamber with the discharge port. A magnetic coupling pump, wherein a foreign matter reservoir is formed between the spiral wall and the inner wall of the housing, and an opening of the foreign matter reservoir is provided near the jet port. .
【００１１】請求項２の磁気結合ポンプは、請求項１記
載の磁気結合ポンプであって、前記隔壁体のうず形壁先
端縁と、前記ハウジングの奥底面との間に、前記ポンプ
室と異物溜め部とを連通する連通間隙が設けられてなる
ことを特徴とする。A magnetic coupling pump according to a second aspect of the present invention is the magnetic coupling pump according to the first aspect, wherein the pump chamber and the foreign matter are located between a leading edge of the spiral wall of the partition and a bottom surface of the housing. A communication gap communicating with the reservoir is provided.
【００１２】請求項３の磁気結合ポンプは、請求項１乃
至２記載の磁気結合ポンプであって、前記うず形壁の噴
流口と前記異物溜め部の開口との間に前記吐出口方向へ
延びるガイド部を備えてなることを特徴とする。A magnetic coupling pump according to a third aspect is the magnetic coupling pump according to the first or second aspect, wherein the magnetic coupling pump extends in the direction of the discharge port between the jet port of the spiral wall and the opening of the foreign matter reservoir. It is characterized by comprising a guide portion.
【００１３】[0013]
【発明の実施の形態】以下、本発明の一実施態様を図面
に基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.
【００１４】本実施態様の磁気結合ポンプは、図１，２
に示すように、吸込口３，吐出口５を有するハウジング
１と、ハウジング１に内装されてポンプ室Ｐとモータ室
Ｍとを区画する隔壁体１０と、複数のステータコア２６
を有しモータ室Ｍ内に設けられたステータ２５と、羽根
３１，ロータマグネット３２，回転軸３４を有しポンプ
室Ｐ内に回動自在に設けられたロータ３０とを備え、隔
壁体１０は噴流口１６を有するうず形壁１５を備え、う
ず形壁１５とハウジング内壁６との間に異物溜め部２０
が形成され、異物溜め部２０の開口２１が噴流口１６の
近傍に設けられて構成され、うず形壁１５先端縁とハウ
ジング奥底面２との間には連通間隙２３が設けられ、噴
流口１６と異物溜め部開口２１との間にはガイド部１７
が設けられている。The magnetic coupling pump of this embodiment is shown in FIGS.
As shown in FIG. 1, a housing 1 having a suction port 3 and a discharge port 5, a partition body 10 which is provided in the housing 1 to partition a pump chamber P and a motor chamber M, and a plurality of stator cores 26.
And a rotor 30 having blades 31, a rotor magnet 32, and a rotating shaft 34 and rotatably provided in the pump chamber P. A conical wall 15 having a spout 16 and a foreign matter reservoir 20 between the conical wall 15 and the housing inner wall 6;
The opening 21 of the foreign matter reservoir 20 is provided in the vicinity of the jet port 16, and a communication gap 23 is provided between the leading edge of the spiral wall 15 and the housing inner bottom surface 2, and the jet port 16 is formed. The guide portion 17 is provided between the
Is provided.
【００１５】ハウジング１は、奥底面２を有する有底円
筒状に形成され、ハウジング１内に隔壁体１０が配設さ
れて、奥底面２側にうず形室Ｐａを有するポンプ室Ｐ、
開口側にモータ室Ｍが形成され、開口部は蓋体８により
密閉されている。なお、モータ室Ｍには、電気的絶縁の
ためポッティング剤（熱硬化性エポキシ樹脂）が充填さ
れている。The housing 1 is formed in a cylindrical shape with a bottom having a bottom surface 2, a partition body 10 is disposed inside the housing 1, and a pump chamber P having a spiral chamber Pa on the side of the bottom surface 2,
A motor chamber M is formed on the opening side, and the opening is closed by a lid 8. The motor chamber M is filled with a potting agent (thermosetting epoxy resin) for electrical insulation.
【００１６】ハウジング１の奥底面２中央部には、軸線
方向外方へ延びる吸込口３が設けられ、ポンプ室Ｐ外周
壁には、接線方向外方へ延びる吐出口５が設けられてい
る。A suction port 3 extending outward in the axial direction is provided at the center of the rear bottom surface 2 of the housing 1, and a discharge port 5 extending tangentially outward is provided on the outer peripheral wall of the pump chamber P.
【００１７】隔壁体１０は、例えば、ＰＰＳ樹脂（ポリ
フェニレンサルファイド樹脂）からなり、本体部１１の
中央部には、モータ室Ｍ内に突出した有底穴状の軸受部
１２を有し、本体部１１外周部には、ポンプ室Ｐ方向に
突出した壁状のうず形壁１５を備えて形成され、Ｏリン
グ１３を介してハウジング１に水密状に取付けられてい
る。The partition 10 is made of, for example, a PPS resin (polyphenylene sulfide resin), and has a bottomed hole-shaped bearing portion 12 projecting into the motor chamber M at the center of the main body 11. The outer peripheral portion 11 is formed with a wall-shaped spiral wall 15 protruding in the direction of the pump chamber P, and is attached to the housing 1 through an O-ring 13 in a watertight manner.
【００１８】うず形壁１５は、図２の断面図に示す如
く、吐出口５に連通する噴流口１６を有し、噴流口１６
の下側を最小径として、反時計回り方向に半径が漸増
し、噴流口１６の上側を最大径としたうず形状に形成さ
れている。このうず形壁１５の内方に、ロータ３０の多
数の羽根３１を収容するうず形室Ｐａが形成されてい
る。The spiral wall 15 has a jet port 16 communicating with the discharge port 5 as shown in the sectional view of FIG.
The radius is gradually increased in the counterclockwise direction with the lower side of the jet as the minimum diameter, and the spiral shape is formed with the upper side of the jet port 16 as the maximum diameter. Inside the spiral wall 15, a spiral chamber Pa accommodating a large number of blades 31 of the rotor 30 is formed.
【００１９】うず形壁１５の厚さｔ1 は、全周において
ほぼ一定に形成されており、噴流口１６下端部には、吐
出口５方向へ延びる隔壁状のガイド部１７が設けられて
いる。このガイド部１７は、噴出流に沿う方向の長さ、
および先端部の形状は自在に設定することができる。ま
た、ポンプ室Ｐ外周のハウジング１の厚さｔ2 は、全周
においてほぼ一定に形成され、うず形壁１５とハウジン
グ内壁面６との間には、巴形状の異物溜め部２０が形成
されている。The thickness t 1 of the spiral wall 15 is substantially constant over the entire circumference, and a partition-like guide portion 17 extending toward the discharge port 5 is provided at the lower end of the jet port 16. . The guide portion 17 has a length in a direction along the jet flow,
And the shape of the tip can be freely set. The thickness t 2 of the housing 1 on the outer periphery of the pump chamber P is substantially constant over the entire circumference, and a tom-shaped foreign matter reservoir 20 is formed between the spiral wall 15 and the inner wall surface 6 of the housing. ing.
【００２０】異物溜め部２０は、最大幅の部分に吐出口
５に連通する開口２１が設けられ、開口２１は、ガイド
部１７を間にして噴流口１６に隣接して設けられてい
る。The foreign matter reservoir 20 is provided with an opening 21 communicating with the discharge port 5 at a portion having the maximum width, and the opening 21 is provided adjacent to the jet port 16 with the guide portion 17 interposed therebetween.
【００２１】また、うず形壁１５先端縁（図１の左端
側）と奥底面２との間には、うず形室Ｐａと異物溜め部
２０とを連通する連通間隙２３が形成されている。この
連通間隙２３は、本例では０．０１ｍｍに形成されてい
る。なお、符号４はロータ３０の軸方向位置規定用のピ
ンであり、６ａはハウジング１とうず形壁１５の位置決
め部である。A communication gap 23 is formed between the tip edge of the spiral wall 15 (the left end side in FIG. 1) and the inner bottom surface 2 to communicate the spiral chamber Pa with the foreign matter reservoir 20. This communication gap 23 is formed to 0.01 mm in this example. Reference numeral 4 denotes a pin for defining the axial position of the rotor 30, and reference numeral 6a denotes a positioning portion of the housing 1 and the spiral wall 15.
【００２２】ステータ２５は、一端がロータマグネット
３２と対向するように、周方向に配設された複数のステ
ータコア２６と、各ステータコア２６に巻装されたステ
ータコイル２７と、円環状の磁気プレート２８とを有
し、制御用の回路基板２９を介して、各ステータコイル
２７に励磁電流を流し、各ステータコア２６の一端に回
転磁界を発生するように構成されている。The stator 25 includes a plurality of stator cores 26 arranged circumferentially so that one end faces the rotor magnet 32, a stator coil 27 wound around each stator core 26, and an annular magnetic plate 28. And an exciting current is applied to each stator coil 27 via a control circuit board 29 to generate a rotating magnetic field at one end of each stator core 26.
【００２３】ロータ３０は、非磁性材からなる円板を基
体にして形成され、一面側に設けられた多数の羽根３１
と、他面側に配設された円環状のロータマグネット３２
と、中央部に設けられた回転軸３４とを備えて構成され
ている。The rotor 30 is formed using a disk made of a non-magnetic material as a base, and has a number of blades 31 provided on one surface side.
And an annular rotor magnet 32 disposed on the other side.
And a rotating shaft 34 provided at the center.
【００２４】ロータマグネット３２は、円周方向にＮＳ
極が着磁され、複数のステータコア２６の一端に隔壁体
１０、および回転間隙を介して面対向して配設されてい
る。なお、符号３３は磁力強化用の磁気プレートであ
り、３５はロータ３０の左右側の圧力差をなくすための
連通孔である。The rotor magnet 32 is arranged in the circumferential direction NS.
The poles are magnetized, and are disposed at one end of the plurality of stator cores 26 so as to face each other via the partition wall 10 and the rotation gap. Reference numeral 33 denotes a magnetic plate for enhancing magnetic force, and reference numeral 35 denotes a communication hole for eliminating a pressure difference between the left and right sides of the rotor 30.
【００２５】このように構成された磁気結合ポンプは、
例えば、内燃機関及び電気自動車のインバータを冷却す
る流体の循環回路に装備される。The magnetic coupling pump configured as described above has
For example, it is provided in a fluid circulation circuit for cooling an internal combustion engine and an inverter of an electric vehicle.
【００２６】そして、この磁気結合ポンプは、複数のス
テータコア２６に回転磁界を発生させ、この回転磁界に
よってロータマグネット３２に回転トルクを発生し、ロ
ータ３０が回転して、吸入口３から流体Ｌを吸込み、流
体Ｌに圧力エネルギーを与えて吐出口５より吐出する。
このとき、異物溜め部２０内には、流体Ｌが充満してお
り、その圧力は、うず形室Ｐａ内より相対的に低く淀ん
だ状態にある。The magnetic coupling pump generates a rotating magnetic field in the plurality of stator cores 26, generates a rotating torque in the rotor magnet 32 by the rotating magnetic field, rotates the rotor 30, and transfers the fluid L from the suction port 3. The fluid L is suctioned and given pressure energy to the fluid L to be discharged from the discharge port 5.
At this time, the fluid L is filled in the foreign material reservoir 20, and the pressure is relatively low and stagnant in the spiral chamber Pa.
【００２７】循環する流体Ｌ中に異物が混入している場
合、この異物の一部は、うず形室Ｐａ内の流体Ｌの遠心
力によって、連通間隙２３を経て異物溜め部２０内に押
出され、異物溜め部２０内に入った異物は、異物溜め部
２０内外の圧力差により捕捉状態となって滞留する。When foreign matter is mixed in the circulating fluid L, a part of the foreign matter is pushed out into the foreign matter reservoir 20 through the communication gap 23 by the centrifugal force of the fluid L in the spiral chamber Pa. The foreign matter that has entered the foreign matter reservoir 20 is trapped and stays due to the pressure difference between the inside and the outside of the foreign matter reservoir 20.
【００２８】また、うず形室Ｐａ内の残余の異物は、流
体Ｌとともに噴流口１６より吐出口５へ向けて噴流す
る。このとき、流体Ｌの流れは、ガイド部１７外端部を
離れると、一部がうず巻き流となり、流体Ｌ中の異物
は、うず巻き流により移動の方向を変えるとともに、後
続うず巻き流によって、押されるようにして開口２１よ
り異物溜め部２０内に移動する。The remaining foreign matter in the spiral chamber Pa is jetted from the jet port 16 to the discharge port 5 together with the fluid L. At this time, when the flow of the fluid L leaves the outer end of the guide portion 17, a part of the flow becomes a spiral flow, and the foreign matter in the fluid L changes its moving direction by the spiral flow and is pushed by the subsequent spiral flow. As described above, it is moved from the opening 21 into the foreign matter reservoir 20.
【００２９】異物溜め部２０内に移動した異物は、異物
溜め部２０内外の圧力差により、捕捉状態となり、外部
へ出ることなく滞留する。従って、再び流体回路を流れ
ることがなく、流体Ｌが流体回路の循環を繰り返すうち
に、流体Ｌ中から、異物が確実に除去され総量が減少す
る。そのため、うず形室Ｐａ内および軸受部１２への異
物堆積を少なくして、軸受部１２，回転軸３４の摩耗を
軽減する。なお、連通孔３５は、ロータ３０の左右両側
の圧力差を平準化して、ロータ３０の軸方向移動を防止
している。The foreign matter that has moved into the foreign matter storage part 20 is trapped by the pressure difference between the inside and the outside of the foreign matter storage part 20 and stays without going outside. Accordingly, the foreign matter is reliably removed from the fluid L while the fluid L repeats the circulation of the fluid circuit without flowing through the fluid circuit again, and the total amount is reduced. Therefore, the accumulation of foreign matter in the spiral chamber Pa and the bearing portion 12 is reduced, and wear of the bearing portion 12 and the rotating shaft 34 is reduced. The communication holes 35 level the pressure difference between the left and right sides of the rotor 30 to prevent the rotor 30 from moving in the axial direction.
【００３０】また、うず形状のうず形室Ｐａ形成に、均
等肉厚のうず形壁１５を備えた構成なので、隔壁体１０
成形時の偏肉による成形歪を回避している。Since the spiral chamber Pa having a spiral shape is provided with the spiral wall 15 having a uniform thickness, the partition wall 10 is formed.
Avoids molding distortion due to uneven wall thickness during molding.
【００３１】[0031]
【発明の効果】以上説明したように本発明の磁気結合ポ
ンプによれば、ポンプ室内にうず形室を形成するととも
に、うず形室に隣接して異物溜め部を設け、異物溜め部
の開口をうず形室の噴流口近傍に設けた構成なので、噴
流口における流体のうず巻き流により、流体中の異物を
捕捉して、異物溜め部内へ移動させることができる。ま
た、異物溜め部に入った異物は、異物溜め部内外の圧力
差により異物溜め部内に滞留し、流体中に放出されて再
び流れることがない。As described above, according to the magnetic coupling pump of the present invention, a spiral chamber is formed in the pump chamber, a foreign matter reservoir is provided adjacent to the spiral chamber, and the opening of the foreign matter reservoir is formed. Since the configuration is provided near the jet port of the spiral chamber, foreign substances in the fluid can be captured and moved into the foreign substance reservoir by the spiral flow of the fluid at the jet port. Further, the foreign matter that has entered the foreign matter storage part stays in the foreign matter storage part due to a pressure difference between the inside and outside of the foreign matter storage part, is released into the fluid, and does not flow again.
【００３２】従って、流体中の異物を確実に除去して、
うず形室や軸受部への異物の堆積を減少し、軸受部等の
摩耗を軽減することができる。Therefore, the foreign matter in the fluid is surely removed,
The accumulation of foreign matter on the spiral chamber and the bearing portion can be reduced, and wear of the bearing portion and the like can be reduced.
【００３３】また、第２の発明の連通間隙を備えること
により、流体の遠心力により効率的に捕捉して、異物を
異物溜め部内に滞留し除去することができる。Further, by providing the communication gap according to the second aspect of the present invention, the foreign matter can be efficiently captured by the centrifugal force of the fluid, and the foreign matter can stay in the foreign matter storage portion and be removed.
【００３４】また、第３の発明のガイド部を備えること
により、噴流口近傍において、流体に積極的にうず巻き
流を形成して、異物を異物溜め部開口へ移動させること
ができる。Further, the provision of the guide portion according to the third aspect of the invention makes it possible to form a vortex in the fluid in the vicinity of the jet port, thereby moving the foreign matter to the foreign matter reservoir opening.
【００３５】さらに、ポンプ室のうず形室を、均等肉厚
のうず形壁により形成できるので、従来例のように、う
ず形室形成に当たって、ハウジングや隔壁体等を不均等
肉厚の外周壁とすることが回避でき、成形時の成形歪を
防止することができる効果を奏する。Further, since the spiral chamber of the pump chamber can be formed by a spiral wall having a uniform thickness, as in the conventional example, when forming the spiral chamber, the housing, the partition and the like are formed with an outer peripheral wall having an uneven thickness. And it is possible to prevent molding distortion during molding.
【図１】本発明の一実施態様の磁気結合ポンプの断面
図。FIG. 1 is a cross-sectional view of a magnetic coupling pump according to an embodiment of the present invention.
【図２】図１のＡ−Ａ線矢視断面図。FIG. 2 is a sectional view taken along line AA of FIG. 1;
【図３】従来例に係る磁気結合ポンプの断面図。FIG. 3 is a sectional view of a magnetic coupling pump according to a conventional example.
１ ハウジング ２ 奥底面 ３ 吸込口 ５ 吐出口 １０ 隔壁体 １５ うず形壁 １６ 噴流口 １７ ガイド部 ２０ 異物溜め部 ２１ 開口 ２３ 連通間隙 ２５ ステータ ３０ ロータ Ｐ ポンプ室 Ｐａ うず形室 Ｍ モータ室 DESCRIPTION OF SYMBOLS 1 Housing 2 Back bottom 3 Suction port 5 Discharge port 10 Partition wall 15 Spiral wall 16 Spout port 17 Guide part 20 Foreign substance storage part 21 Opening 23 Communication gap 25 Stator 30 Rotor P Pump room Pa Spiral room M Motor room
Claims (3)
形成されたハウジングと、 前記ハウジングに内装され前記吸込口および吐出口に連
通するポンプ室とモータ室とを区画する隔壁体と、 各々ステータコイルが巻かれた複数のステータコアを有
し前記モータ室内に設けられたステータと、 多数の羽根および前記複数のステータコアに対向して配
設されたロータマグネットならびに前記隔壁体に軸支さ
れた回転軸を有して前記ポンプ室内に回動自在に設けら
れたロータと、を備えた磁気結合ポンプであって、 前記隔壁体は、前記ポンプ室内にうず形室を形成すると
ともに該うず形室と前記吐出口とを連通する噴流口を有
するうず形壁を備え、前記うず形壁と前記ハウジング内
壁との間に異物溜め部が形成されるとともに、前記異物
溜め部の開口が前記噴流口の近傍に設けられてなること
を特徴とする磁気結合ポンプ。A housing having a bottom and having a cylindrical shape and having a suction port and a discharge port; a partition body which is provided in the housing and partitions a pump chamber and a motor chamber communicating with the suction port and the discharge port. A stator having a plurality of stator cores each wound with a stator coil and being provided in the motor chamber; a plurality of blades and a rotor magnet disposed to face the plurality of stator cores; And a rotor having a rotating shaft and rotatably provided in the pump chamber, wherein the partition wall forms a spiral chamber in the pump chamber and has a spiral shape. A spiral wall having a jet port communicating the chamber with the discharge port, wherein a foreign matter reservoir is formed between the spiral wall and the inner wall of the housing; Magnetic coupling pump, wherein the mouth is provided in the vicinity of the jet port.
て、 前記隔壁体のうず形壁先端縁と、前記ハウジングの奥底
面との間に、前記ポンプ室と異物溜め部とを連通する連
通間隙が設けられてなることを特徴とする磁気結合ポン
プ。2. The magnetic coupling pump according to claim 1, wherein a communication between the pump chamber and the foreign matter reservoir is provided between a leading edge of the spiral wall of the partition and a bottom surface of the housing. A magnetic coupling pump, wherein a gap is provided.
あって、 前記うず形壁の噴流口と前記異物溜め部の開口との間に
前記吐出口方向へ延びるガイド部を備えてなることを特
徴とする磁気結合ポンプ。3. The magnetic coupling pump according to claim 1, further comprising a guide portion extending in the direction of the discharge port between the jet port of the spiral wall and the opening of the foreign substance storage section. A magnetic coupling pump characterized by the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19112696A JP3362299B2 (en) | 1996-07-19 | 1996-07-19 | Magnetic coupling pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19112696A JP3362299B2 (en) | 1996-07-19 | 1996-07-19 | Magnetic coupling pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1037888A true JPH1037888A (en) | 1998-02-13 |
| JP3362299B2 JP3362299B2 (en) | 2003-01-07 |
Family
ID=16269309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19112696A Expired - Fee Related JP3362299B2 (en) | 1996-07-19 | 1996-07-19 | Magnetic coupling pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3362299B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014137023A (en) * | 2013-01-17 | 2014-07-28 | Asmo Co Ltd | Washer pump device for vehicle |
| JP2020020278A (en) * | 2018-07-31 | 2020-02-06 | パナソニックＩｐマネジメント株式会社 | Electric pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55114898A (en) * | 1979-02-26 | 1980-09-04 | Kubota Ltd | Outboard type centrifugal pump |
| JPS593200A (en) * | 1982-06-30 | 1984-01-09 | Tokyo Kousou Kk | Vertical-shaft magnetically-coupled pump |
| JPH0212093U (en) * | 1988-07-06 | 1990-01-25 | ||
| JPH0290392U (en) * | 1988-12-27 | 1990-07-18 | ||
| JPH0521197U (en) * | 1991-05-17 | 1993-03-19 | 株式会社荏原製作所 | Canned motor pump |
| JPH07174097A (en) * | 1993-12-20 | 1995-07-11 | Kobe Steel Ltd | Centrifugal compressor |
| JPH07211965A (en) * | 1994-01-25 | 1995-08-11 | Fanuc Ltd | Turboblower for laser |
| JPH0861285A (en) * | 1994-08-22 | 1996-03-08 | Aisan Ind Co Ltd | Magnetic coupling pump |
-
1996
- 1996-07-19 JP JP19112696A patent/JP3362299B2/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55114898A (en) * | 1979-02-26 | 1980-09-04 | Kubota Ltd | Outboard type centrifugal pump |
| JPS593200A (en) * | 1982-06-30 | 1984-01-09 | Tokyo Kousou Kk | Vertical-shaft magnetically-coupled pump |
| JPH0212093U (en) * | 1988-07-06 | 1990-01-25 | ||
| JPH0290392U (en) * | 1988-12-27 | 1990-07-18 | ||
| JPH0521197U (en) * | 1991-05-17 | 1993-03-19 | 株式会社荏原製作所 | Canned motor pump |
| JPH07174097A (en) * | 1993-12-20 | 1995-07-11 | Kobe Steel Ltd | Centrifugal compressor |
| JPH07211965A (en) * | 1994-01-25 | 1995-08-11 | Fanuc Ltd | Turboblower for laser |
| JPH0861285A (en) * | 1994-08-22 | 1996-03-08 | Aisan Ind Co Ltd | Magnetic coupling pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014137023A (en) * | 2013-01-17 | 2014-07-28 | Asmo Co Ltd | Washer pump device for vehicle |
| JP2020020278A (en) * | 2018-07-31 | 2020-02-06 | パナソニックＩｐマネジメント株式会社 | Electric pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3362299B2 (en) | 2003-01-07 |
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|---|---|---|---|
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Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20020903 |
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