JP4505347B2 - Fluid pump - Google Patents

Fluid pump Download PDF

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JP4505347B2
JP4505347B2 JP2005047311A JP2005047311A JP4505347B2 JP 4505347 B2 JP4505347 B2 JP 4505347B2 JP 2005047311 A JP2005047311 A JP 2005047311A JP 2005047311 A JP2005047311 A JP 2005047311A JP 4505347 B2 JP4505347 B2 JP 4505347B2
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fluid
pump
seal
rotary shaft
filtration
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JP2006233808A (en
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昌樹 西村
克彦 田中
景一 五十嵐
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Asmo Co Ltd
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Asmo Co Ltd
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Description

本発明は、流体ポンプに係り、特に、回転翼部材が収容されたポンプケースの流体吸入口からポンプケースとモータケースとをシールするシール部材へ通ずる流体通路にろ過部材が設けられた流体ポンプに関する。   The present invention relates to a fluid pump, and more particularly, to a fluid pump in which a filtering member is provided in a fluid passage that leads from a fluid suction port of a pump case in which a rotor blade member is accommodated to a seal member that seals the pump case and the motor case. .

従来から、回転翼部材が収容されたポンプケースの流体吸入口からポンプケースとモータケースとをシールするシール部材へ通ずる流体通路にろ過部材が設けられた流体ポンプが知られている(例えば、特許文献1参照)。   2. Description of the Related Art Conventionally, a fluid pump is known in which a filtering member is provided in a fluid passage that leads from a fluid suction port of a pump case in which a rotor blade member is accommodated to a seal member that seals the pump case and the motor case (for example, a patent) Reference 1).

ここで、特許文献1に記載の例について説明すると、ウォータポンプには、ケーシングと、ケーシングにガスケットを介して接合されたセクションカバーとが設けられている。また、ケーシングとシャフトとの間には、メカニカルシールが設けられており、このメカニカルシールによってケーシングとセクションカバーとがシールされている。   Here, the example described in Patent Document 1 will be described. The water pump is provided with a casing and a section cover joined to the casing via a gasket. Further, a mechanical seal is provided between the casing and the shaft, and the casing and the section cover are sealed by this mechanical seal.

ケーシングには、シャフトを回転させるためのモータが収容されており、セクションカバーには、シャフトに連結されたインペラが収容されている。ケーシングには、軸方向に延びる筒状フィルターが設けられており、インペラの径方向外側位置には、筒状フィルターの一部を収容する凹部が設けられ、インペラの凹部よりも径方向内側位置には筒状フィルタを通過した流体を流体吸入口へ戻すための貫通孔が設けられている。   A motor for rotating the shaft is accommodated in the casing, and an impeller coupled to the shaft is accommodated in the section cover. The casing is provided with a cylindrical filter extending in the axial direction. A concave portion for accommodating a part of the cylindrical filter is provided at a radially outer position of the impeller, and at a radially inner position than the concave portion of the impeller. Is provided with a through hole for returning the fluid that has passed through the cylindrical filter to the fluid suction port.

そして、上記構成からなるウォータポンプにおいて、モータの回転に伴ってインペラが回転すると、流体吸入口から流体が吸入され、この吸入された流体は吐出孔から吐出される。また、流体吸入口から吸入された流体の一部は、筒状フィルタを通過することによって異物を除去され、筒状フィルタを通過し異物が除去された流体は、メカニカルシールを潤滑・冷却した後に貫通孔を介して流体吸入口側へ戻される。
特開平9−79182号公報
In the water pump configured as described above, when the impeller rotates as the motor rotates, the fluid is sucked from the fluid suction port, and the sucked fluid is discharged from the discharge hole. Further, a part of the fluid sucked from the fluid suction port passes through the cylindrical filter to remove foreign matters, and the fluid from which the foreign matter has been removed after passing through the cylindrical filter is lubricated and cooled after the mechanical seal is lubricated and cooled. The fluid is returned to the fluid inlet side through the through hole.
Japanese Patent Laid-Open No. 9-79182

しかしながら、特許文献1に記載の例のように、インペラの径方向外側位置に筒状フィルタを設けると筒状フィルタが径方向に大型化し、また、筒状フィルタを回転軸方向に延びる筒状に構成すると筒状フィルタが軸方向に大型化する。従って、筒状フィルタの径方向及び軸方向への大型化に伴って筒状フィルタを収容するスペースも拡大する必要がある。このため、特許文献1に記載の構成では、ウォータポンプの小型化が困難となるという不都合がある。   However, as in the example described in Patent Document 1, when a cylindrical filter is provided at the radially outer position of the impeller, the cylindrical filter is enlarged in the radial direction, and the cylindrical filter is formed in a cylindrical shape extending in the rotation axis direction. If comprised, a cylindrical filter will enlarge in an axial direction. Therefore, it is necessary to expand the space for accommodating the tubular filter as the tubular filter increases in size in the radial direction and the axial direction. For this reason, the configuration described in Patent Document 1 has a disadvantage that it is difficult to reduce the size of the water pump.

さらに、特許文献1に記載の例のように、インペラに、筒状フィルターの一部を収容する凹部や、筒状フィルタを通過した流体を流体吸入口へ戻すための貫通孔を設けると、インペラの形状が複雑化すると共に、これら凹部及び貫通孔を設けたことによってインペラも大型化する。従って、インペラの大型化に伴ってインペラを収容するスペースも拡大する必要があり、また、インペラの重量の増加に伴ってポンプ効率が低下するという不都合がある。   Further, as in the example described in Patent Document 1, when the impeller is provided with a recess for accommodating a part of the cylindrical filter or a through hole for returning the fluid that has passed through the cylindrical filter to the fluid suction port, the impeller The shape of the impeller is complicated, and the impeller is also increased in size by providing these recesses and through holes. Therefore, it is necessary to expand the space for accommodating the impeller as the impeller becomes larger, and there is a disadvantage that the pump efficiency decreases as the weight of the impeller increases.

本発明は、上記問題に鑑みてなされたものであって、その目的は、流体ポンプの長寿命化を図りつつ、ろ過部材を小型化することによって流体ポンプ全体の小型化が可能な流体ポンプを提供することにある。   The present invention has been made in view of the above problems, and an object of the present invention is to provide a fluid pump capable of reducing the size of the entire fluid pump by reducing the size of the filtration member while extending the life of the fluid pump. It is to provide.

また、本発明の他の目的は、流体ポンプの長寿命化を図りつつ、インペラを軽量化することによってポンプ効率を向上させることが可能な流体ポンプを提供することにある。   Another object of the present invention is to provide a fluid pump capable of improving pump efficiency by reducing the weight of the impeller while extending the life of the fluid pump.

前記課題を解決するために、請求項1に記載の発明は、回転軸部材を有して構成されたモータと、前記モータを収容するモータケースと、前記回転軸部材に連結された回転翼部材と、前記回転翼部材を収容し、前記回転軸部材と同軸上で前記モータと前記回転翼部材を挟んだ反対側位置に流体吸入口を有して構成されたポンプケースと、前記回転軸部材の廻りに設けられ、前記モータケースと前記ポンプケースとをシールするシール部材と、前記ポンプケースの流体吸入口から前記シール部材へ通ずる流体通路に設けられたろ過部材と、を備えた流体ポンプにおいて、前記回転翼部材における前記回転軸部材の廻りには、前記ポンプケースの流体吸入口から前記シール部材へ流体を供給するための環状孔部が前記回転軸部材に沿って貫通され、前記ろ過部材は、前記回転軸部材に近接した位置から前記回転軸部材の径方向外側へ延出するように構成されると共に、前記環状孔部に設けられ、前記シール部材は、前記回転軸部材又は前記回転軸部材と共に回転する回転部材が摺接する摺接シール部と、前記摺接シール部と一体に形成されると共に、前記ポンプケースの流体吸入口から前記摺接シール部と前記回転軸部材又は前記回転部材との摺接部へ通ずる流体通路に配置された異物侵入防止部と、を有して構成され、前記異物侵入防止部は、前記摺接シール部から前記回転翼部材側へ筒状に延出すると共に、前記回転翼部材側へ延出する筒状延出端が前記回転翼部材の前記シール部材側の端面における前記環状孔部の径方向外側部位に当接するように構成されていることを特徴とする。 In order to solve the above-mentioned problem, the invention according to claim 1 is a motor configured to include a rotating shaft member, a motor case that houses the motor, and a rotary blade member that is connected to the rotating shaft member. A pump case configured to house the rotary blade member and have a fluid suction port on the opposite side of the motor and the rotary blade member on the same axis as the rotary shaft member; and the rotary shaft member A fluid pump comprising: a seal member that seals the motor case and the pump case; and a filtration member provided in a fluid passage that leads from the fluid suction port of the pump case to the seal member , around the rotary shaft member in said rotary blade member, the annular hole for supplying fluid to said sealing member from the fluid inlet of the pump casing is penetrated along the rotary shaft member Said filtration member, together with the composed position close to the rotary shaft member so as to extend radially outward of the rotating shaft member, provided in the annular hole, the sealing member, the rotary shaft member Alternatively, a sliding contact seal portion that is in sliding contact with a rotating member that rotates together with the rotating shaft member, and the sliding contact seal portion and the rotating shaft member are formed integrally with the sliding contact seal portion and from the fluid suction port of the pump case. Or a foreign matter intrusion prevention portion disposed in a fluid passage that communicates with the sliding contact portion with the rotating member, and the foreign matter intrusion preventing portion is a cylinder from the sliding contact seal portion to the rotating blade member side. And a cylindrical extension end extending toward the rotor blade member is in contact with a radially outer portion of the annular hole portion on an end surface of the rotor member on the seal member side. It is characterized in that it has .

請求項1に記載の発明のように、ろ過部材が回転軸部材に近接した位置から回転軸部材の径方向外側へ延出するように構成されていると、従来のように、ろ過部材を軸方向に延びる筒状に構成した場合に比して、ろ過部材を軸方向に小型化することが可能となる。また、ろ過部材の径方向内側位置を回転軸部材に近接して設けることにより、ろ過部材を径方向に小型化することが可能となる。従って、ろ過部材を軸方向及び径方向に小型化することによって流体ポンプ全体の小型化が可能となる。   When the filtration member is configured to extend radially outward of the rotary shaft member from a position close to the rotary shaft member as in the first aspect of the invention, the filter member is pivoted as in the prior art. Compared with the case where it is configured in a cylindrical shape extending in the direction, the filtration member can be downsized in the axial direction. Further, by providing the radially inner position of the filtration member close to the rotary shaft member, the filtration member can be reduced in size in the radial direction. Therefore, the size of the entire fluid pump can be reduced by reducing the size of the filtration member in the axial direction and the radial direction.

また、請求項1に記載のように、回転翼部材における回転軸部材の廻りにポンプケースの流体吸入口からシール部材へ流体を供給するための環状孔部が回転軸部材に沿って貫通され、この環状孔部にろ過部材が設けられていると、流体吸入口から吸入された流体を回転翼部材の環状孔部に設けられたろ過部材でろ過でき、このろ過した流体をシール部材へ供給することが可能となる。これにより、シール部材を効率よく潤滑・冷却することができ、また、シール部材に異物が侵入することを防止できるため、流体ポンプの長寿命化が可能となる。 Further, as described in claim 1 , an annular hole for supplying fluid from the fluid suction port of the pump case to the seal member is penetrated along the rotary shaft member around the rotary shaft member in the rotary blade member, When the filtering member is provided in the annular hole, the fluid sucked from the fluid suction port can be filtered by the filtering member provided in the annular hole of the rotor blade member, and the filtered fluid is supplied to the seal member. It becomes possible. Accordingly, the seal member can be efficiently lubricated and cooled, and foreign matter can be prevented from entering the seal member, so that the life of the fluid pump can be extended.

さらに、請求項1に記載のように、シール部材が、回転軸部材又は回転軸部材と共に回転する回転部材が摺接する摺接シール部と、摺接シール部と一体に形成されると共に、ポンプケースの流体吸入口から摺接シール部と回転軸部材又は回転部材との摺接部へ通ずる流体通路に配置された異物侵入防止部と、を有して構成され、異物侵入防止部が、摺接シール部から回転翼部材側へ筒状に延出すると共に、回転翼部材側へ延出する筒状延出端が回転翼部材のシール部材側の端面における環状孔部の径方向外側部位に当接するように構成されていると、ポンプケースの流体吸入口から摺接シール部と回転軸部材又は回転部材との摺接部側へ搬送されてきた異物が摺接部へ到達することを異物侵入防止部によって阻止することができる。これにより、摺接シール部及び回転軸部材又は回転部材の摩耗を防止できるので、流体ポンプの長寿命化が可能となる。 In addition, as described in claim 1 , the seal member is formed integrally with the rotary shaft member or the sliding contact seal portion in which the rotary member rotating together with the rotary shaft member is in sliding contact, and the pump case. A foreign matter intrusion prevention portion disposed in a fluid passage that leads from the fluid suction port to the sliding contact seal portion and the sliding contact portion of the rotary shaft member or the rotary member. A cylindrical extension extending from the seal portion to the rotor member side and a cylindrical extension end extending to the rotor member side contacts a radially outer portion of the annular hole on the end surface of the rotor member on the seal member side. When configured to come into contact, the foreign matter intruded from the fluid suction port of the pump case to the sliding contact portion between the sliding contact seal portion and the rotary shaft member or the rotating member reaches the sliding contact portion. It can be blocked by the prevention part. Accordingly, wear of the sliding contact seal portion and the rotary shaft member or the rotary member can be prevented, so that the life of the fluid pump can be extended.

請求項2に記載の発明は、請求項1に記載の流体ポンプにおいて、前記異物侵入防止部は、前記回転翼部材側から前記シール部材側へ向かうに従って縮径するように構成されていることを特徴とする。 Invention according to claim 2, in the fluid pump according to claim 1, wherein the foreign matter intrusion preventing section that is configured to diameter reduced toward from said rotating blade member side to the sealing member side Features.

請求項2に記載のように、異物侵入防止部が、回転翼部材側からシール部材側へ向かうに従って縮径するように構成されていると、この異物侵入防止部によってポンプケースの流体吸入口から吸入された流体を拡散させること無く集中的にシール部材へ供給することができる。これにより、シール部材の潤滑・冷却効率を高めることが可能となる。従って、シール部材に焼き付き等が生じることを防止できるので、流体ポンプの長寿命化が可能となる。 As described in claim 2, when the foreign matter intrusion prevention portion is configured to reduce the diameter from the rotor member side toward the seal member side, the foreign matter intrusion prevention portion causes the foreign matter intrusion prevention portion to The sucked fluid can be intensively supplied to the seal member without diffusing. As a result, the lubrication / cooling efficiency of the seal member can be increased. Therefore, it is possible to prevent seizure or the like from occurring on the seal member, and thus it is possible to extend the life of the fluid pump.

請求項3に記載の発明は、請求項1又は請求項2に記載の流体ポンプにおいて、前記ろ過部材には、前記ポンプケースの流体吸入口から前記シール部材へ搬送される流体の流れ方向と反対方向へ前記ろ過部材を付勢する弾性体が設けられていることを特徴とする。 According to a third aspect of the present invention, in the fluid pump according to the first or second aspect , the filtration member is opposite to a flow direction of the fluid conveyed from the fluid suction port of the pump case to the seal member. An elastic body that biases the filtering member in a direction is provided.

請求項3に記載の発明のように、ろ過部材に、ポンプケースの流体吸入口からシール部材へ搬送される流体の流れ方向と反対方向へろ過部材を付勢する弾性体が設けられていると、回転翼部材の回転によって搬送された流体の水圧により撓んだ状態にあるろ過部材を、回転翼部材の停止に伴ってろ過部材に作用する水圧が解除された場合に、弾性体によって元の形状に勢い良く戻すことができる。これにより、ろ過部材に付着していた異物をろ過部材から弾き飛ばすことができるので、ろ過部材の目詰まりを防止でき、ろ過部材の長寿命化が可能となる。 As in the invention described in claim 3 , when the filtering member is provided with an elastic body that urges the filtering member in a direction opposite to the flow direction of the fluid conveyed from the fluid suction port of the pump case to the seal member. When the water pressure acting on the filtration member is released due to the stop of the rotary blade member, the filter member that is bent due to the water pressure of the fluid conveyed by the rotation of the rotary blade member is released by the elastic body. It can be returned to its shape vigorously. Thereby, since the foreign material adhering to the filtration member can be blown off from the filtration member, clogging of the filtration member can be prevented, and the life of the filtration member can be extended.

請求項4に記載の発明は、請求項1乃至請求項3のいずれか一項に記載の流体ポンプにおいて、前記ろ過部材は、前記ポンプケースの流体吸入口から前記シール部材へ搬送される流体の流れ方向に対して反発するように弾性を有することを特徴とする。 According to a fourth aspect of the present invention, in the fluid pump according to any one of the first to third aspects, the filtration member is a fluid pump that is conveyed from the fluid suction port of the pump case to the seal member. It is characterized by having elasticity so as to repel the flow direction.

請求項4に記載の発明のように、ろ過部材が、ポンプケースの流体吸入口からシール部材へ搬送される流体の流れ方向に対して反発するように弾性を有していると、ろ過部材は、回転翼部材の回転によって搬送された流体の水圧により撓んだ状態になり、回転翼部材の停止に伴ってろ過部材に作用する水圧が解除された場合には、その弾性力によって元の形状に勢い良く戻るようになる。これにより、ろ過部材に付着していた異物がろ過部材から弾き飛ばされるので、ろ過部材の目詰まりを防止でき、ろ過部材の長寿命化が可能となる。 When the filtration member has elasticity so as to repel the flow direction of the fluid conveyed from the fluid suction port of the pump case to the seal member as in the invention described in claim 4 , the filtration member is When the water pressure acting on the filter member is released due to the stop of the rotary blade member, the original shape is caused by the elastic force when the rotary blade member is bent due to the hydraulic pressure of the fluid conveyed by the rotation of the rotary blade member. I will return to the momentum. Thereby, since the foreign material adhering to the filtration member is blown off from the filtration member, clogging of the filtration member can be prevented, and the life of the filtration member can be extended.

請求項5に記載の発明は、請求項1乃至請求項4のいずれか一項に記載の流体ポンプにおいて、前記ろ過部材には、振動素子が設けられていることを特徴とする。 According to a fifth aspect of the present invention, in the fluid pump according to any one of the first to fourth aspects, the filtering member is provided with a vibration element.

請求項5に記載のように、ろ過部材に振動素子が設けられていると、この振動素子を振動させることにより、ろ過部材全体を振動させることが可能となる。これにより、ろ過部材に付着していた異物をろ過部材から弾き飛ばすことができるので、ろ過部材の目詰まりを防止でき、ろ過部材の長寿命化が可能となる。 If the vibration element is provided in the filtration member as described in claim 5 , it is possible to vibrate the entire filtration member by vibrating the vibration element. Thereby, since the foreign material adhering to the filtration member can be blown off from the filtration member, clogging of the filtration member can be prevented, and the life of the filtration member can be extended.

以下、本発明の一実施形態について、図を参照して説明する。なお、以下に説明する部材、配置等は、本発明を限定するものではなく、本発明の趣旨に沿って各種改変することができることは勿論である。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be noted that members, arrangements, and the like described below do not limit the present invention, and it goes without saying that various modifications can be made in accordance with the spirit of the present invention.

[第一実施形態]
はじめに、図1乃至図3を参照しながら、本発明の第一実施形態に係る流体ポンプとしてのウォータポンプ10の構成について説明する。
[First embodiment]
First, the configuration of a water pump 10 as a fluid pump according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 3.

本発明の第一実施形態に係るウォータポンプ10は、例えば、自動車のエンジン冷却システムに好適に用いられるものであり、モータ部12とポンプ部42とを有して構成されている。   The water pump 10 according to the first embodiment of the present invention is suitably used in, for example, an automobile engine cooling system, and includes a motor unit 12 and a pump unit 42.

モータ部12には、モータ室14を有するモータケース16が備えられており、モータ室14には、回転軸部材18を有して構成されたモータ22が収容されている。モータ22の回転軸部材18は、モータケース16に設けられた貫通孔24を介してポンプ室44に突出しており、この回転軸部材18のポンプ室44に突出した突出部18Aには、回転翼部材52が連結されている。   The motor unit 12 is provided with a motor case 16 having a motor chamber 14, and a motor 22 having a rotating shaft member 18 is accommodated in the motor chamber 14. The rotating shaft member 18 of the motor 22 protrudes into the pump chamber 44 through the through hole 24 provided in the motor case 16, and the protruding portion 18 </ b> A protruding into the pump chamber 44 of the rotating shaft member 18 includes a rotating blade. The member 52 is connected.

モータケース16のポンプ室44側には、凹部26が形成されており、この凹部26には、シール部材32が設けられている。このシール部材32は、回転軸部材18の廻りに設けられ、モータケース16の貫通孔24を介してポンプ室44からモータ室14へ流体(この場合、エンジン冷却水:LLC)が浸入することを防止するようになっている。   A recess 26 is formed on the motor case 16 on the pump chamber 44 side, and a seal member 32 is provided in the recess 26. The seal member 32 is provided around the rotary shaft member 18 and prevents fluid (in this case, engine cooling water: LLC) from entering the motor chamber 14 from the pump chamber 44 through the through hole 24 of the motor case 16. It comes to prevent.

シール部材32には、摺接シール部34が設けられており、この摺接シール部34は、モータケース16に対して固定されている。摺接シール部34には、回転軸部材18が摺接するリップ部34Aが設けられており、本実施形態では、回転軸部材18がリップ部34Aに密着して摺接することによってモータ室14とポンプ室44とがシールされるようになっている。   The seal member 32 is provided with a sliding contact seal portion 34, and the sliding contact seal portion 34 is fixed to the motor case 16. The sliding contact seal portion 34 is provided with a lip portion 34A in which the rotary shaft member 18 is slidably contacted. In this embodiment, the rotary shaft member 18 is in close contact with the lip portion 34A and is in sliding contact with the motor chamber 14 and the pump. The chamber 44 is sealed.

摺接シール部34におけるリップ部34Aの径方向外側位置には、後述する回転翼部材52側へ延出する筒状の異物侵入防止部36が一体的に形成されている。この異物侵入防止部36は、ポンプケース46の流体吸入口48から回転翼部材52の径方向外側を通過しリップ部34Aと回転軸部材18との摺接部へ連通する流体通路(矢印T1で示す)を通じてポンプ室44側からリップ部34A側へ鋳砂等の異物が侵入することを阻止するためのものである。   A cylindrical foreign matter intrusion prevention portion 36 that extends toward the rotary blade member 52, which will be described later, is integrally formed at a radially outer position of the lip portion 34A in the sliding contact seal portion 34. This foreign matter intrusion prevention unit 36 is a fluid passage (indicated by an arrow T1) that passes from the fluid suction port 48 of the pump case 46 to the outside in the radial direction of the rotary blade member 52 and communicates with the sliding contact portion between the lip portion 34A and the rotary shaft member 18. In order to prevent foreign matters such as cast sand from entering from the pump chamber 44 side to the lip portion 34A side.

また、異物侵入防止部36は、回転翼部材52側からシール部材32側へ向かうに従って縮径するテーパ状に構成されており、異物侵入防止部36の回転翼部材52側へ延出する筒状延出端部36Aは、後述する回転翼部材52のシール部材32側の端面56における環状孔部54の径方向外側部位に当接するように構成されている。   Further, the foreign matter intrusion prevention unit 36 is configured in a tapered shape having a diameter that decreases from the rotary blade member 52 side toward the seal member 32 side, and has a cylindrical shape that extends to the rotary blade member 52 side of the foreign matter intrusion prevention unit 36. The extending end portion 36A is configured to contact a radially outer portion of the annular hole portion 54 on an end surface 56 of the rotary blade member 52, which will be described later, on the seal member 32 side.

この異物侵入防止部36の筒状延出端部36Aの断面形状は、図2(A)で示されるように、鈍角状に構成されており、本実施形態では、この鈍角状に構成された部分が回転翼部材52の端面56に当接されるように構成されている。   The cross-sectional shape of the cylindrical extension end portion 36A of the foreign matter intrusion prevention portion 36 is configured as an obtuse angle as shown in FIG. 2A, and in this embodiment, the obtuse angle is configured. The portion is configured to abut against the end face 56 of the rotary blade member 52.

なお、異物侵入防止部36の筒状延出端部36Aの断面形状は、図2(B)で示されるように、鋭角状に構成され、この鋭角状に構成された部分が回転翼部材52の端面56に当接されるように構成されていても良い。   In addition, the cross-sectional shape of the cylindrical extension end portion 36A of the foreign matter intrusion prevention portion 36 is configured as an acute angle as shown in FIG. 2B, and the portion configured in the acute angle shape is the rotor blade member 52. It may be configured to be in contact with the end face 56 of this.

また、異物侵入防止部36の筒状延出端部36Aの断面形状は、図2(C)で示されるように、回転翼部材52の端面56と平行に形成され、この平行に形成された部分が回転翼部材52の端面56に当接されるように構成されていても良い。   Further, the cross-sectional shape of the cylindrical extension end portion 36A of the foreign matter intrusion prevention portion 36 is formed in parallel to the end face 56 of the rotary blade member 52, as shown in FIG. The portion may be configured to come into contact with the end surface 56 of the rotary blade member 52.

ポンプ部42には、ポンプ室44を有するポンプケース46が備えられており、ポンプ室44には、回転軸部材18に連結された回転翼部材52が回転自在に収容されている。ポンプケース46の回転軸部材18と同軸上でモータ22と回転翼部材52を挟んだ反対側位置には、流体吸入口48が形成されており、また、ポンプケース46の回転翼部材52の径方向外側位置には、不図示の流体吐出口が形成されている。   The pump unit 42 includes a pump case 46 having a pump chamber 44, and a rotary blade member 52 connected to the rotary shaft member 18 is rotatably accommodated in the pump chamber 44. A fluid suction port 48 is formed on the opposite side of the motor 22 and the rotary blade member 52 on the same axis as the rotary shaft member 18 of the pump case 46, and the diameter of the rotary blade member 52 of the pump case 46 is formed. A fluid discharge port (not shown) is formed at the position outside in the direction.

そして、本実施形態では、モータ22の回転に伴って回転翼部材52が回転すると、流体吸入口48から流体が吸入され、この流体が不図示の流体吐出口から吐出されるようになっている。   In the present embodiment, when the rotor blade member 52 rotates with the rotation of the motor 22, fluid is sucked from the fluid suction port 48, and this fluid is discharged from a fluid discharge port (not shown). .

回転翼部材52における回転軸部材18の廻りには、回転軸部材18に沿って環状孔部54が貫通されている。この環状孔部54は、ポンプケース46の流体吸入口48からシール部材32へ流体を供給するための流体通路(矢印T2で示す)として構成されている。   An annular hole 54 passes through the rotary shaft member 18 around the rotary shaft member 18 in the rotary blade member 52. The annular hole portion 54 is configured as a fluid passage (indicated by an arrow T2) for supplying fluid from the fluid suction port 48 of the pump case 46 to the seal member 32.

そして、環状孔部54の流体吸入口48側には、収容凹部58が形成されており、この収容凹部58には、環状のろ過部材62が設けられている。このろ過部材62は、環状孔部54を通じてポンプケース46の流体吸入口48側からシール部材32側へ移動する流体中の異物(例えば、鋳砂)を除去するためのものである。   An accommodation recess 58 is formed on the annular hole portion 54 on the fluid suction port 48 side, and an annular filtration member 62 is provided in the accommodation recess 58. The filtering member 62 is for removing foreign matters (for example, cast sand) in the fluid that moves from the fluid suction port 48 side of the pump case 46 to the sealing member 32 side through the annular hole 54.

なお、ろ過部材62は、収容凹部58に圧入、接着、ねじ溶着、かしめ等により固定されていても良く、また、回転翼部材52と一体成形されていても良い。   The filtering member 62 may be fixed to the housing recess 58 by press fitting, adhesion, screw welding, caulking, or the like, or may be integrally formed with the rotary blade member 52.

ろ過部材62の中央には、軸方向に沿って孔部64が形成されており、この孔部64には、回転軸部材18が挿通されている。ろ過部材62の孔部64と回転軸部材18とのクリアランスは、このクリアランスを介して異物がシール部材32側へ侵入しないように、実質上ゼロとなるように構成されている。   A hole 64 is formed in the center of the filtering member 62 along the axial direction, and the rotary shaft member 18 is inserted into the hole 64. The clearance between the hole 64 of the filtration member 62 and the rotary shaft member 18 is configured to be substantially zero so that foreign matter does not enter the seal member 32 via this clearance.

また、本実施形態のろ過部材62は、図1で示されるように、平面状に構成されている。つまり、ろ過部材62は、回転軸部材18に近接した位置から軸方向と垂直な方向に沿って回転軸部材18の径方向外側へ延出するように構成されている。   Moreover, the filtration member 62 of this embodiment is comprised by planar shape, as FIG. 1 shows. That is, the filtration member 62 is configured to extend outward in the radial direction of the rotary shaft member 18 along a direction perpendicular to the axial direction from a position close to the rotary shaft member 18.

また、ろ過部材62は、図3(A)にその一部が示されるように、同じ形状の粒子66を同一平面で複数組み合わせた構成となっている。なお、ろ過部材62は、図3(B)にその一部が示されるように、異形状の粒子67を同一平面で複数組み合わせた構成であっても良い。また、ろ過部材62は、図3(C)にその一部が示されるように、網目68が均一のネット状に構成されていても良く、また、図3(D)にその一部が示されるように、網目68が不均一のネット状に構成されていても良い。   Moreover, the filtration member 62 has a configuration in which a plurality of particles 66 having the same shape are combined in the same plane, as shown in part in FIG. The filtration member 62 may have a configuration in which a plurality of irregularly shaped particles 67 are combined on the same plane, as shown in part in FIG. Further, as shown in part of FIG. 3C, the filtering member 62 may have a mesh 68 with a uniform net shape, and part of the filtering member 62 is shown in FIG. As described above, the mesh 68 may be formed in a non-uniform net shape.

次に、本発明の第一実施形態に係るウォータポンプ10の作用及び効果について説明する。   Next, the operation and effect of the water pump 10 according to the first embodiment of the present invention will be described.

本発明の第一実施形態に係るウォータポンプ10のように、ろ過部材62が回転軸部材18に近接した位置から回転軸部材18の径方向外側へ延出するように構成されていると、従来のように、ろ過部材62を軸方向に延びる筒状に構成した場合に比して、ろ過部材62を軸方向に小型化することが可能となる。   As in the water pump 10 according to the first embodiment of the present invention, when the filtering member 62 is configured to extend radially outward of the rotating shaft member 18 from a position close to the rotating shaft member 18, Thus, it is possible to reduce the size of the filtration member 62 in the axial direction as compared with the case where the filtration member 62 is configured in a cylindrical shape extending in the axial direction.

また、本実施形態のように、ろ過部材62の径方向内側位置を回転軸部材18に近接して設けることにより、ろ過部材62を径方向に小型化することが可能となる。従って、ろ過部材62を軸方向及び径方向に小型化することによってウォータポンプ10全体の小型化が可能となる。   Further, as in the present embodiment, by providing the radially inner position of the filtration member 62 close to the rotary shaft member 18, the filtration member 62 can be reduced in size in the radial direction. Therefore, the water pump 10 as a whole can be downsized by reducing the size of the filtration member 62 in the axial direction and the radial direction.

また、本発明の第一実施形態に係るウォータポンプ10のように、回転翼部材52における回転軸部材18の廻りにポンプケース46の流体吸入口48からシール部材32へ流体を供給するための環状孔部54が回転軸部材18に沿って貫通され、この環状孔部54にろ過部材62が設けられていると、流体吸入口48から吸入された流体を回転翼部材52の環状孔部54に設けられたろ過部材62でろ過でき、このろ過した流体をシール部材32へ供給することが可能となる。これにより、シール部材32を効率よく潤滑・冷却することができ、また、シール部材32に異物が侵入することを防止できるため、ウォータポンプ10の長寿命化が可能となる。   Further, like the water pump 10 according to the first embodiment of the present invention, an annular for supplying fluid from the fluid suction port 48 of the pump case 46 to the seal member 32 around the rotary shaft member 18 in the rotary blade member 52. When the hole 54 is penetrated along the rotary shaft member 18 and the annular member 54 is provided with the filtering member 62, the fluid sucked from the fluid suction port 48 is passed through the annular hole 54 of the rotary blade member 52. The filter member 62 can be filtered, and the filtered fluid can be supplied to the seal member 32. Accordingly, the seal member 32 can be efficiently lubricated and cooled, and foreign matter can be prevented from entering the seal member 32, so that the life of the water pump 10 can be extended.

さらに、本発明の第一実施形態に係るウォータポンプ10のように、シール部材32に異物侵入防止部36が設けられていると、ポンプケース46の流体吸入口48からリップ部34Aと回転軸部材18との摺接部側へ搬送されてきた異物がリップ部34Aと回転軸部材18との摺接部へ到達することを異物侵入防止部36によって阻止することができる。これにより、リップ部34A及び回転軸部材18の摩耗を防止できるので、ウォータポンプ10の長寿命化が可能となる。   Further, as in the water pump 10 according to the first embodiment of the present invention, when the foreign matter intrusion preventing portion 36 is provided in the seal member 32, the lip portion 34A and the rotary shaft member are provided from the fluid suction port 48 of the pump case 46. The foreign matter that has been conveyed to the slidable contact portion side with 18 can be prevented by the foreign matter entry prevention portion 36 from reaching the slidable contact portion between the lip portion 34 </ b> A and the rotary shaft member 18. Thereby, since wear of the lip portion 34A and the rotating shaft member 18 can be prevented, the life of the water pump 10 can be extended.

また、本発明の第一実施形態に係るウォータポンプ10のように、異物侵入防止部36が、回転翼部材52側からシール部材32側へ向かうに従って縮径するようにテーパ状に構成されていると、この異物侵入防止部36によってポンプケース46の流体吸入口48から吸入された流体を拡散させること無く集中的にシール部材32へ供給することができる。これにより、シール部材32の潤滑・冷却効率を高めることが可能となる。従って、シール部材32に焼き付き等が生じることを防止できるので、ウォータポンプ10の長寿命化が可能となる。   Moreover, like the water pump 10 according to the first embodiment of the present invention, the foreign matter intrusion prevention unit 36 is configured to be tapered so that the diameter decreases from the rotary blade member 52 side toward the seal member 32 side. The foreign matter intrusion prevention unit 36 can intensively supply the fluid sucked from the fluid suction port 48 of the pump case 46 to the seal member 32 without diffusing. As a result, the lubrication / cooling efficiency of the seal member 32 can be increased. Therefore, it is possible to prevent the seal member 32 from being seized and the like, so that the life of the water pump 10 can be extended.

また、本発明の第一実施形態に係るウォータポンプ10のように、ろ過部材62が平面状に構成されていると、ろ過部材62の軸方向への小型化により、ウォータポンプ10全体の軸方向へのさらなる小型化が可能となる。   Moreover, if the filtration member 62 is comprised planarly like the water pump 10 which concerns on 1st embodiment of this invention, the axial direction of the water pump 10 whole by size reduction to the axial direction of the filtration member 62. Further downsizing is possible.

次に、本発明の第一実施形態に係るウォータポンプ10の変形例について説明する。   Next, a modified example of the water pump 10 according to the first embodiment of the present invention will be described.

本発明の第一実施形態では、ろ過部材62が、軸方向と垂直な方向に沿って延出するように構成されていたが、軸方向に対して傾斜するように(軸方向と交差するように)構成されていても良い。このようにしても、ウォータポンプ10の径方向及び軸方向の小型化が可能となる。   In the first embodiment of the present invention, the filtering member 62 is configured to extend along a direction perpendicular to the axial direction, but is inclined with respect to the axial direction (so as to intersect the axial direction). Ii) may be configured. Even in this case, the water pump 10 can be downsized in the radial direction and the axial direction.

また、ろ過部材62は、図1で示されるように、平面状に限らず、凸曲面状や凹曲面状に構成しても良い。ろ過部材62を凸曲面状に構成した場合には、ろ過部材62で捕捉された異物がろ過部材62から落下するようになり、ろ過部材62に異物が必要以上に堆積することを防止できる。また、ろ過部材62を凹曲面状に構成した場合には、ろ過部材62で捕捉した異物の飛散を防止できる。   Further, as shown in FIG. 1, the filtering member 62 is not limited to a planar shape, and may be configured to have a convex curved surface shape or a concave curved surface shape. When the filtering member 62 is formed in a convex curved surface shape, the foreign matter captured by the filtering member 62 falls from the filtering member 62, and it is possible to prevent foreign matter from accumulating on the filtering member 62 more than necessary. Moreover, when the filtration member 62 is configured in a concave curved surface shape, the scattering of foreign matter captured by the filtration member 62 can be prevented.

また、本発明の第一実施形態では、シール部材32のリップ部34Aに回転軸部材18が摺接することにより、モータ室14とポンプ室44とがシールされるようになっていたが、シール部材32が第一のシールリングと第二のシールリングからなり、回転軸部材18に第一のシールリングが設けられ、第二のシールリングがモータケース16に対して固定され、第二のシールリングに対して第一のシールリングが相対的に摺動する構成であっても良い。   In the first embodiment of the present invention, the rotary shaft member 18 is in sliding contact with the lip portion 34A of the seal member 32 so that the motor chamber 14 and the pump chamber 44 are sealed. 32 comprises a first seal ring and a second seal ring, the rotary shaft member 18 is provided with the first seal ring, the second seal ring is fixed to the motor case 16, and the second seal ring In contrast, the first seal ring may slide relatively.

[第二実施形態]
次に、図4を参照しながら、本発明の第二実施形態に係るウォータポンプ20について説明する。
[Second Embodiment]
Next, a water pump 20 according to a second embodiment of the present invention will be described with reference to FIG.

なお、本発明の第二実施形態において、上述の第一実施形態に係るウォータポンプ20と同一の構成については、同一の符号を用いることとして、その説明を省略する。   In addition, in 2nd embodiment of this invention, about the structure same as the water pump 20 which concerns on the above-mentioned 1st embodiment, the description is abbreviate | omitted as using the same code | symbol.

本発明の第二実施形態に係るウォータポンプ20では、回転翼部材72が軸方向に独立した第一部材72A及び第二部材72Bにより構成されている。第一部材72Aには、第一環状孔部74Aが形成されており、第二部材72Bには、第二環状孔部74Bが形成されている。   In the water pump 20 according to the second embodiment of the present invention, the rotary blade member 72 is constituted by the first member 72A and the second member 72B that are independent in the axial direction. A first annular hole 74A is formed in the first member 72A, and a second annular hole 74B is formed in the second member 72B.

また、第二環状孔部74Bの流体吸入口48側には、収容凹部78が構成されており、この収容凹部78には、ろ過部材62が収容されている。ろ過部材62は、収容凹部78に収容された状態で第一部材72Aと第二部材72Bとが接合されることにより回転翼部材72と一体化されている。このとき、ろ過部材62は、収容凹部78に圧入、接着、ねじ溶着、かしめ等により固定されていても良く、また、第二部材と一体成形されていても良い。   An accommodation recess 78 is formed on the fluid suction port 48 side of the second annular hole 74 </ b> B, and the filtration member 62 is accommodated in the accommodation recess 78. The filtration member 62 is integrated with the rotary blade member 72 by joining the first member 72A and the second member 72B while being accommodated in the accommodation recess 78. At this time, the filtering member 62 may be fixed to the receiving recess 78 by press fitting, adhesion, screw welding, caulking, or the like, or may be integrally formed with the second member.

なお、本発明の第二実施形態に係るウォータポンプ20の作用及び効果については、上述の第一実施形態に係るウォータポンプ20と同様であるため、上述の第一実施形態の説明を参照することとして、その説明を省略する。   In addition, about the effect | action and effect of the water pump 20 which concern on 2nd embodiment of this invention, since it is the same as that of the water pump 20 which concerns on the above-mentioned 1st embodiment, please refer to description of the above-mentioned 1st embodiment. The description is omitted.

第一参考例
次に、図5を参照しながら、本発明の第一参考例に係るウォータポンプ30について説明する。
[ First Reference Example ]
Next, a water pump 30 according to a first reference example of the present invention will be described with reference to FIG.

なお、本発明の第一参考例において、上述の第一実施形態と同一の構成については、同一の符号を用いることとして、その説明を省略する。 In the first reference example of the present invention, the same components as those in the first embodiment described above are denoted by the same reference numerals, and the description thereof is omitted.

本発明の第一参考例に係るウォータポンプ30では、モータケース86における回転翼部材82側の中央位置に軸方向に貫通する収容孔部88が形成されており、この収容孔部88に、ろ過部材62が設けられている。このとき、ろ過部材62は、収容孔部88に圧入、接着、ねじ溶着、かしめ等により固定されていても良く、また、モータケース16と一体成形されていても良い。 In the water pump 30 according to the first reference example of the present invention, an accommodation hole portion 88 penetrating in the axial direction is formed at the central position of the motor case 86 on the rotary blade member 82 side, and filtration is performed in the accommodation hole portion 88. A member 62 is provided. At this time, the filtering member 62 may be fixed to the receiving hole 88 by press fitting, adhesion, screw welding, caulking, or the like, or may be integrally formed with the motor case 16.

ここで、本発明の第一参考例に係るウォータポンプ30では、ポンプケース46の流体吸入口48からリップ部34Aへ流体が移動する際に、流体の移動経路(矢印T3で示す)が、モータケース86に設けられた収容孔部88に限られている。このため、シール部材92は、上述の第一実施形態に係るシール部材32に対して異物侵入防止部36が省かれた構成となっている。 Here, in the water pump 30 according to the first reference example of the present invention, when the fluid moves from the fluid suction port 48 of the pump case 46 to the lip portion 34A, the fluid movement path (indicated by the arrow T3) is a motor. It is limited to the accommodation hole 88 provided in the case 86. For this reason, the seal member 92 has a configuration in which the foreign matter intrusion prevention unit 36 is omitted from the seal member 32 according to the first embodiment described above.

続いて、本発明の第一参考例に係るウォータポンプ30の作用及び効果について説明する。 Then, the effect | action and effect of the water pump 30 which concern on the 1st reference example of this invention are demonstrated.

本発明の第一参考例に係るウォータポンプ30のように、ろ過部材62が回転翼部材82とシール部材92との間に設けられていると、回転翼部材82の回転によって流体と共に搬送されてきた異物が収容孔部88を介してシール部材92のリップ部34Aに到達する前にろ過部材62によって異物を除去することができる。これにより、リップ部34A及び回転軸部材18の摩耗を防止できるので、ウォータポンプ30の長寿命化が可能となる。 When the filtering member 62 is provided between the rotary blade member 82 and the seal member 92 as in the water pump 30 according to the first reference example of the present invention, it is conveyed along with the fluid by the rotation of the rotary blade member 82. The foreign matter can be removed by the filtering member 62 before the foreign matter reaches the lip portion 34A of the seal member 92 via the accommodation hole 88. Thereby, since wear of the lip portion 34A and the rotary shaft member 18 can be prevented, the life of the water pump 30 can be extended.

また、本発明の第一参考例に係るウォータポンプ30のように、ろ過部材82がモータケース86に一体に設けられていると、回転翼部材82にろ過部材62を設ける必要が無いので、回転翼部材82の構成を簡素化することができると共に回転翼部材82を小型化できる。これにより、回転翼部材82を軽量化できるので、ポンプ効率を向上させることが可能となる。 Further, when the filtering member 82 is provided integrally with the motor case 86 as in the water pump 30 according to the first reference example of the present invention, it is not necessary to provide the filtering member 62 on the rotating blade member 82. The configuration of the blade member 82 can be simplified and the rotary blade member 82 can be downsized. Thereby, since the rotary blade member 82 can be reduced in weight, it becomes possible to improve pump efficiency.

さらに、回転翼部材82を簡素化することにより、材料費を削減でき、これにより、ウォータポンプ30のコストダウンが可能となる。   Furthermore, the cost of the water pump 30 can be reduced by simplifying the rotary blade member 82 to reduce the material cost.

また、ろ過部材62を回転翼部材82とシール部材92との間に設けることにより、ろ過部材62が回転翼部材82と一体に回転するのではなく静止した状態を維持できるため、回転翼部材82が回転した場合でも、ろ過部材62に作用する負荷を軽減できる。これにより、ろ過部材62の損傷等を抑制できるので、ウォータポンプ30の長寿命化が可能となる。   In addition, by providing the filtering member 62 between the rotary blade member 82 and the seal member 92, the filtering member 62 can maintain a stationary state instead of rotating integrally with the rotary blade member 82. Even when it rotates, the load which acts on the filtration member 62 can be reduced. Thereby, since the damage of the filtration member 62 etc. can be suppressed, the lifetime of the water pump 30 can be extended.

また、シール部材92から異物侵入防止部36(図1参照)を省いた構成とすることにより、ウォータポンプ30全体の軸方向へのさらなる小型化が可能となると共に材料費削減によるコストダウンが可能となる。   Further, by removing the foreign matter intrusion prevention portion 36 (see FIG. 1) from the seal member 92, the water pump 30 as a whole can be further reduced in the axial direction and the cost can be reduced by reducing the material cost. It becomes.

なお、本発明の第一参考例に係るウォータポンプ30の作用及び効果において、上述の第一実施形態と同一の構成に伴う作用及び効果については、上述の第一実施形態の説明を参照することとして、その説明を省略する。 In the operation and effect of the water pump 30 according to the first reference example of the present invention, refer to the description of the first embodiment for the operation and effect associated with the same configuration as the first embodiment. The description is omitted.

第二参考例
次に、図6を参照しながら、本発明の第二参考例に係るウォータポンプ40について説明する。
[ Second Reference Example ]
Next, a water pump 40 according to a second reference example of the present invention will be described with reference to FIG.

なお、本発明の第二参考例において、上述の第一実施形態及び第一参考例と同一の構成については、同一の符号を用いることとして、その説明を省略する。 In the second reference example of the present invention, the same reference numerals are used for the same configurations as those in the first embodiment and the first reference example, and the description thereof is omitted.

本発明の第二参考例に係るウォータポンプ40では、シール部材102における回転翼部材82側の中央位置に軸方向に貫通する収容孔部108が形成されており、この収容凹部108に、ろ過部材62が設けられている。このとき、ろ過部材62は、収容凹部108に圧入、接着、ねじ溶着、かしめ等により固定されていても良く、また、シール部材102と一体成形されていても良い。 In the water pump 40 according to the second reference example of the present invention, an accommodation hole portion 108 penetrating in the axial direction is formed at a central position of the seal member 102 on the rotary blade member 82 side, and a filtration member is formed in the accommodation recess portion 108. 62 is provided. At this time, the filtration member 62 may be fixed to the housing recess 108 by press fitting, adhesion, screw welding, caulking, or the like, or may be integrally formed with the seal member 102.

ここで、本発明の第二参考例に係るウォータポンプ40では、ポンプケース46の流体吸入口48からリップ部34Aへ流体が移動する際に、流体の移動経路(矢印T4で示す)が、モータケース106に設けられた貫通孔107に限られている。このため、シール部材102は、上述の第一実施形態に係るシール部材32に対して異物侵入防止部36が省かれた構成となっている。 Here, in the water pump 40 according to the second reference example of the present invention, when the fluid moves from the fluid suction port 48 of the pump case 46 to the lip portion 34A, the fluid movement path (indicated by the arrow T4) is a motor. It is limited to the through hole 107 provided in the case 106. For this reason, the seal member 102 has a configuration in which the foreign matter intrusion prevention unit 36 is omitted from the seal member 32 according to the first embodiment described above.

続いて、本発明の第二参考例に係るウォータポンプ40の作用及び効果について説明する。 Then, the effect | action and effect of the water pump 40 which concern on the 2nd reference example of this invention are demonstrated.

本発明の第二参考例に係るウォータポンプ40のように、ろ過部材62がシール部材102に一体に設けられていると、回転翼部材82の回転によって流体と共に搬送されてきた異物が貫通孔107を介してシール部材102のリップ部34Aに到達する前にろ過部材62によって異物を除去することができる。これにより、リップ部34A及び回転軸部材18の摩耗を防止できるので、ウォータポンプ40の長寿命化が可能となる。 When the filtering member 62 is provided integrally with the seal member 102 as in the water pump 40 according to the second reference example of the present invention, the foreign matter conveyed along with the fluid by the rotation of the rotary blade member 82 is passed through the through hole 107. The foreign matter can be removed by the filtering member 62 before reaching the lip 34A of the seal member 102 via the. Thereby, since wear of the lip portion 34A and the rotary shaft member 18 can be prevented, the life of the water pump 40 can be extended.

また、本発明の第二参考例に係るウォータポンプ40のように、ろ過部材62がシール部材102に一体に設けられていると、回転翼部材82にろ過部材62を設ける必要が無いので、回転翼部材82の構成を簡素化することができると共に回転翼部材82を小型化できる。これにより、回転翼部材82を軽量化できるので、ポンプ効率を向上させることが可能となる。 Further, when the filtering member 62 is provided integrally with the seal member 102 as in the water pump 40 according to the second reference example of the present invention, it is not necessary to provide the filtering member 62 on the rotary blade member 82. The configuration of the blade member 82 can be simplified and the rotary blade member 82 can be downsized. Thereby, since the rotary blade member 82 can be reduced in weight, it becomes possible to improve pump efficiency.

さらに、ろ過部材62をシール部材102に一体に設けることにより、ろ過部材62が回転翼部材82と一体に回転するのではなく静止した状態を維持できるため、回転翼部材82が回転した場合でも、ろ過部材62に作用する負荷を軽減できる。これにより、ろ過部材62の損傷等を抑制できるので、ウォータポンプ40の長寿命化が可能となる。   Furthermore, by providing the filtration member 62 integrally with the seal member 102, the filtration member 62 can maintain a stationary state instead of rotating integrally with the rotary blade member 82, so even when the rotary blade member 82 rotates, The load acting on the filtering member 62 can be reduced. Thereby, since the damage of the filtration member 62 etc. can be suppressed, the lifetime of the water pump 40 can be extended.

また、シール部材102から異物侵入防止部36(図1参照)を省いた構成とすることにより、ウォータポンプ40全体の軸方向へのさらなる小型化が可能となると共に材料費削減によるコストダウンが可能となる。   Further, by removing the foreign matter intrusion prevention portion 36 (see FIG. 1) from the seal member 102, the entire water pump 40 can be further reduced in the axial direction and the cost can be reduced by reducing the material cost. It becomes.

なお、本発明の第二参考例に係るウォータポンプ40の作用及び効果において、上述の第一実施形態と同一の構成に伴う作用及び効果については、上述の第一実施形態の説明を参照することとして、その説明を省略する。 In the operation and effect of the water pump 40 according to the second reference example of the present invention, refer to the description of the first embodiment for the operation and effect associated with the same configuration as the first embodiment. The description is omitted.

第三参考例
次に、図7,図8を参照しながら、本発明の第三参考例に係るウォータポンプ50について説明する。
[ Third reference example ]
Next, a water pump 50 according to a third reference example of the present invention will be described with reference to FIGS.

なお、本発明の第三参考例において、上述の第一実施形態乃至第二参考例と同一の構成については、同一の符号を用いることとして、その説明を省略する。 In the third reference example of the present invention, the same reference numerals are used for the same configurations as those in the first embodiment to the second reference example, and the description thereof is omitted.

本発明の第三参考例に係るウォータポンプ50では、モータケース86の収容孔部88に孔部114を有する立体状のろ過部材112が設けられている。ろ過部材112は、図8(A)にその一部が示されるように、同じ形状の粒子66を立体的に複数組み合わせた構成となっている。 In the water pump 50 according to the third reference example of the present invention, a three-dimensional filter member 112 having a hole 114 in the accommodation hole 88 of the motor case 86 is provided. The filtration member 112 has a configuration in which a plurality of particles 66 having the same shape are three-dimensionally combined, as shown in part in FIG.

このようなろ過部材112は、例えば、発泡金属、燒結金属等によって構成され、成形等によって大量に生産することが可能である。   Such a filtration member 112 is made of, for example, foam metal, sintered metal, or the like, and can be produced in large quantities by molding or the like.

なお、ろ過部材112は、図8(B)にその一部が示されるように、異形状の粒子67を立体的に複数組み合わせた構成であっても良い。また、上記第一実施形態、第二実施形態及び第二参考例の構成に本実施形態における立体状のろ過部材112を適用するようにしても良い。 Note that the filtration member 112 may have a configuration in which a plurality of irregularly shaped particles 67 are three-dimensionally combined, as shown in part in FIG. Moreover, you may make it apply the three-dimensional filtration member 112 in this embodiment to the structure of said 1st embodiment, 2nd embodiment, and a 2nd reference example .

続いて、本発明の第三参考例に係るウォータポンプ50の作用及び効果について説明する。 Then, the effect | action and effect of the water pump 50 which concern on the 3rd reference example of this invention are demonstrated.

本発明の第三参考例に係るウォータポンプ50のように、ろ過部材112が立体状に構成されていると、ろ過部材122における異物除去性能を高めることができるので、ウォータポンプ50の長寿命化が可能となる。 When the filtration member 112 is configured in a three-dimensional shape like the water pump 50 according to the third reference example of the present invention, the foreign matter removal performance of the filtration member 122 can be improved, so the life of the water pump 50 is extended. Is possible.

なお、本発明の第三参考例に係るウォータポンプ50の作用及び効果において、上述の第一実施形態乃至第二参考例と同一の構成に伴う作用及び効果については、上述の第一実施形態乃至第二参考例の説明を参照することとして、その説明を省略する。 In addition, in the operation and effect of the water pump 50 according to the third reference example of the present invention, the operation and effect associated with the same configuration as in the first embodiment to the second reference example described above are described in the first embodiment to the above. The description is omitted as referring to the description of the second reference example .

第三実施形態
次に、図9を参照しながら、本発明の第三実施形態に係るウォータポンプ60について説明する。
[ Third embodiment ]
Next, a water pump 60 according to a third embodiment of the present invention will be described with reference to FIG.

なお、本発明の第三実施形態において、上述の第一実施形態乃至第三参考例と同一の構成については、同一の符号を用いることとして、その説明を省略する。 In the third embodiment of the present invention, the same reference numerals are used for the same configurations as those in the first embodiment to the third reference example, and the description thereof is omitted.

本発明の第三実施形態に係るウォータポンプ60では、回転翼部材52の収容凹部58に孔部124を有する平面状のろ過部材122が設けられており、このろ過部材122には、ポンプケース46の流体吸入口48からシール部材32へ搬送される流体の流れ(矢印T6で示す)方向と反対方向へろ過部材122を付勢する弾性体84(板ばね、コイルスプリング、ゴムなど)が設けられている。 In the water pump 60 according to the third embodiment of the present invention, a flat filter member 122 having a hole 124 is provided in the housing recess 58 of the rotary blade member 52, and the filter case 122 has a pump case 46. An elastic body 84 (plate spring, coil spring, rubber, etc.) that urges the filter member 122 in a direction opposite to the direction of the flow of fluid (indicated by arrow T6) conveyed from the fluid suction port 48 to the seal member 32 is provided. ing.

なお、上記第二実施形態乃至第三参考例の構成に本実施形態における弾性体84を適用するようにしても良い。 In addition, you may make it apply the elastic body 84 in this embodiment to the structure of said 2nd embodiment thru | or a 3rd reference example .

続いて、本発明の第三実施形態に係るウォータポンプ60の作用及び効果について説明する。 Then, the effect | action and effect of the water pump 60 which concern on 3rd embodiment of this invention are demonstrated.

本発明の第三実施形態に係るウォータポンプ60のように、ろ過部材122に弾性体84が設けられていると、図9(B)で示されるように、回転翼部材52の回転によって搬送された流体(矢印T6で示す)の水圧により撓んだ状態にあるろ過部材122を、回転翼部材52の停止に伴ってろ過部材122に作用する水圧が解除された場合に、図9(A)で示されるように、弾性体84によって元の形状に勢い良く戻すことができる。これにより、ろ過部材122に付着していた異物をろ過部材122から弾き飛ばすことができるので、ろ過部材122の目詰まりを防止でき、ろ過部材122の長寿命化が可能となる。 Like the water pump 60 according to the third embodiment of the present invention, when the filter member 122 is provided with the elastic body 84, it is conveyed by the rotation of the rotary blade member 52 as shown in FIG. 9B. 9A when the water pressure acting on the filtration member 122 is released as the rotary blade member 52 stops when the filtration member 122 is bent by the water pressure of the fluid (indicated by arrow T6). As can be seen, the elastic body 84 can restore the original shape vigorously. Thereby, since the foreign material adhering to the filtration member 122 can be blown off from the filtration member 122, the clogging of the filtration member 122 can be prevented, and the life of the filtration member 122 can be extended.

なお、本発明の第三実施形態に係るウォータポンプ60の作用及び効果において、上述の第一実施形態乃至第三参考例と同一の構成に伴う作用及び効果については、上述の第一実施形態乃至第三参考例の説明を参照することとして、その説明を省略する。 In addition, in the operation and effect of the water pump 60 according to the third embodiment of the present invention, the operation and effect associated with the same configurations as those in the first embodiment to the third reference example described above are described in the first embodiment to the above. The description is omitted by referring to the description of the third reference example .

第四実施形態
次に、図10を参照しながら、本発明の第四実施形態に係るウォータポンプ70について説明する。
[ Fourth embodiment ]
Next, a water pump 70 according to a fourth embodiment of the present invention will be described with reference to FIG.

なお、本発明の第四実施形態において、上述の第一実施形態乃至第三実施形態と同一の構成については、同一の符号を用いることとして、その説明を省略する。 In addition, in 4th embodiment of this invention, about the structure same as the above-mentioned 1st embodiment thru | or 3rd embodiment , the description is abbreviate | omitted as using the same code | symbol.

本発明の第四実施形態に係るウォータポンプ70では、回転翼部材52の収容凹部58に孔部134を有する平面状のろ過部材132が設けられており、このろ過部材132は、ポンプケース46の流体吸入口48からシール部材32へ搬送される流体の流れ方向(矢印T7で示す)に対して反発するように弾性を有するように構成されている。 In the water pump 70 according to the fourth embodiment of the present invention, a flat filtration member 132 having a hole 134 is provided in the accommodation recess 58 of the rotary blade member 52, and the filtration member 132 is provided in the pump case 46. It is configured to have elasticity so as to repel the flow direction (indicated by arrow T7) of the fluid conveyed from the fluid suction port 48 to the seal member 32.

なお、上記第二実施形態乃至第三実施形態の構成に本実施形態における弾性を有するろ過部材132を適用するようにしても良い。 In addition, you may make it apply the filter member 132 which has the elasticity in this embodiment to the structure of said 2nd embodiment thru | or 3rd embodiment .

続いて、本発明の第四実施形態に係るウォータポンプ70の作用及び効果について説明する。 Then, the effect | action and effect of the water pump 70 which concern on 4th embodiment of this invention are demonstrated.

本発明の第四実施形態に係るウォータポンプ70のように、ろ過部材132が弾性を有していると、ろ過部材132は、図10(B)で示されるように、回転翼部材52の回転によって搬送された流体(矢印T7で示す)の水圧により撓んだ状態になり、回転翼部材52の停止に伴ってろ過部材132に作用する水圧が解除された場合には、図10(A)で示されるように、その弾性力によって元の形状に勢い良く戻るようになる。これにより、ろ過部材132に付着していた異物がろ過部材132から弾き飛ばされるので、ろ過部材132の目詰まりを防止でき、ろ過部材132の長寿命化が可能となる。 When the filtering member 132 has elasticity like the water pump 70 according to the fourth embodiment of the present invention, the filtering member 132 rotates the rotating blade member 52 as shown in FIG. When the water pressure acting on the filter member 132 is released when the rotary blade member 52 is stopped due to the bending of the water pressure of the fluid (indicated by the arrow T7) conveyed by the rotary blade member 52, FIG. As shown by, the elastic shape returns to the original shape vigorously. Thereby, since the foreign material adhering to the filtration member 132 is blown off from the filtration member 132, clogging of the filtration member 132 can be prevented, and the life of the filtration member 132 can be extended.

なお、本発明の第四実施形態に係るウォータポンプ70の作用及び効果において、上述の第一実施形態乃至第三実施形態と同一の構成に伴う作用及び効果については、上述の第一実施形態乃至第三実施形態の説明を参照することとして、その説明を省略する。 In addition, in the effect | action and effect of the water pump 70 which concern on 4th embodiment of this invention, about the effect | action and effect accompanying the same structure as the above-mentioned 1st embodiment thru | or 3rd embodiment , above-mentioned 1st embodiment thru | or. The description is omitted as referring to the description of the third embodiment .

第四参考例
次に、図11を参照しながら、本発明の第四参考例に係るウォータポンプ80について説明する。
Fourth Reference Example]
Next, a water pump 80 according to a fourth reference example of the present invention will be described with reference to FIG.

なお、本発明の第四参考例において、上述の第一実施形態乃至第四実施形態と同一の構成については、同一の符号を用いることとして、その説明を省略する。 Note that in the fourth reference example of the present invention, the same reference numerals are used for the same configurations as those in the first to fourth embodiments , and the description thereof is omitted.

本発明の第四参考例に係るウォータポンプ80では、モータケース86の収容凹部88に平面状のろ過部材62が設けられており、このろ過部材62には、振動素子94が設けられている。また、振動素子94は、コントローラ96によって動作が制御されるようになっている。 In the water pump 80 according to the fourth reference example of the present invention, a flat filter member 62 is provided in the housing recess 88 of the motor case 86, and a vibration element 94 is provided in the filter member 62. The operation of the vibration element 94 is controlled by a controller 96.

なお、上記第二実施形態乃至第四実施形態の構成に本実施形態における振動素子94を適用するようにしても良い。 In addition, you may make it apply the vibration element 94 in this embodiment to the structure of said 2nd embodiment thru | or 4th embodiment .

続いて、本発明の第四参考例に係るウォータポンプ80の作用及び効果について説明する。 Then, the effect | action and effect of the water pump 80 which concern on the 4th reference example of this invention are demonstrated.

本発明の第四参考例に係るウォータポンプ80のように、ろ過部材62に振動素子94が設けられていると、この振動素子94をコントローラ96によって振動させることにより、ろ過部材62全体を振動させることが可能となる。これにより、ろ過部材62に付着していた異物をろ過部材62から弾き飛ばすことができるので、ろ過部材62の目詰まりを防止でき、ろ過部材62の長寿命化が可能となる。 When the vibration member 94 is provided in the filtration member 62 as in the water pump 80 according to the fourth reference example of the present invention, the vibration member 94 is vibrated by the controller 96 to vibrate the entire filtration member 62. It becomes possible. Thereby, since the foreign material adhering to the filtration member 62 can be blown off from the filtration member 62, clogging of the filtration member 62 can be prevented, and the life of the filtration member 62 can be extended.

なお、本発明の第四参考例に係るウォータポンプ80の作用及び効果において、上述の第一実施形態乃至第四実施形態と同一の構成に伴う作用及び効果については、上述の第一実施形態乃至第四実施形態の説明を参照することとして、その説明を省略する。 In addition, in the operation | movement and effect of the water pump 80 which concerns on the 4th reference example of this invention, about the operation | movement and effect accompanying the same structure as the above-mentioned 1st embodiment thru | or 4th embodiment , the above-mentioned 1st embodiment thru | or. The description is omitted as referring to the description of the fourth embodiment .

本発明の第一実施形態に係るウォータポンプの構成を示す断面図である。It is sectional drawing which shows the structure of the water pump which concerns on 1st embodiment of this invention. 本発明の第一実施形態に係る異物侵入防止部の構成を示す要部拡大図である。It is a principal part enlarged view which shows the structure of the foreign material penetration | invasion prevention part which concerns on 1st embodiment of this invention. 本発明の第一実施形態に係るろ過部材の構成を示す要部拡大図である。It is a principal part enlarged view which shows the structure of the filtration member which concerns on 1st embodiment of this invention. 本発明の第二実施形態に係るウォータポンプの構成を示す断面図である。It is sectional drawing which shows the structure of the water pump which concerns on 2nd embodiment of this invention. 本発明の第一参考例に係るウォータポンプの構成を示す断面図である。It is sectional drawing which shows the structure of the water pump which concerns on the 1st reference example of this invention. 本発明の第二参考例に係るウォータポンプの構成を示す断面図である。It is sectional drawing which shows the structure of the water pump which concerns on the 2nd reference example of this invention. 本発明の第三参考例に係るウォータポンプの構成を示す断面図である。It is sectional drawing which shows the structure of the water pump which concerns on the 3rd reference example of this invention. 本発明の第三参考例に係るろ過部材の構成を示す要部拡大図である。It is a principal part enlarged view which shows the structure of the filtration member which concerns on the 3rd reference example of this invention. 本発明の第三実施形態に係るウォータポンプの構成を示す断面図である。It is sectional drawing which shows the structure of the water pump which concerns on 3rd embodiment of this invention. 本発明の第四実施形態に係るウォータポンプの構成を示す断面図である。It is sectional drawing which shows the structure of the water pump which concerns on 4th embodiment of this invention. 本発明の第四参考例に係るウォータポンプの構成を示す断面図である。It is sectional drawing which shows the structure of the water pump which concerns on the 4th reference example of this invention.

符号の説明Explanation of symbols

10,20,30,40,50,60,70,80…ウォータポンプ、12…モータ部、14…モータ室、16,86,106…モータケース、18…回転軸部材、18A…突出部、22…モータ、24…貫通孔、26…凹部、32,92,102…シール部材、34…摺接シール部、34A…リップ部、36…異物侵入防止部、36A…筒状延出端部、40…ウォータポンプ、42…ポンプ部、44…ポンプ室、46…ポンプケース、48…流体吸入口、52,72,82…回転翼部材、54…環状孔部、56…端面、58,78…収容凹部、62,82,112,122,132…ろ過部材、64,114,124,134…孔部、66,67…粒子、68…網目、72A…第一部材、72B…第二部材、74A…第一環状孔部、74B…第二環状孔部、84…弾性体、88,108…収容孔部、94…振動素子、96…コントローラ、107…貫通孔 10, 20, 30, 40, 50, 60, 70, 80 ... water pump, 12 ... motor section, 14 ... motor chamber, 16, 86, 106 ... motor case, 18 ... rotating shaft member, 18A ... projecting section, 22 DESCRIPTION OF SYMBOLS ... Motor, 24 ... Through-hole, 26 ... Recessed part, 32, 92, 102 ... Seal member, 34 ... Sliding contact seal part, 34A ... Lip part, 36 ... Foreign matter intrusion prevention part, 36A ... Cylindrical extension end part, 40 ... Water pump, 42 ... Pump part, 44 ... Pump chamber, 46 ... Pump case, 48 ... Fluid suction port, 52, 72, 82 ... Rotary blade member, 54 ... Annular hole part, 56 ... End face, 58, 78 ... Recess, 62, 82, 112, 122, 132 ... filtration member, 64, 114, 124, 134 ... hole, 66, 67 ... particle, 68 ... mesh, 72A ... first member, 72B ... second member, 74A ... First annular hole, 74B Second annular hole, 84 ... elastic body, 88,108 ... receiving hole portion, 94 ... vibration device, 96 ... controller, 107 ... through hole

Claims (5)

回転軸部材を有して構成されたモータと、
前記モータを収容するモータケースと、
前記回転軸部材に連結された回転翼部材と、
前記回転翼部材を収容し、前記回転軸部材と同軸上で前記モータと前記回転翼部材を挟んだ反対側位置に流体吸入口を有して構成されたポンプケースと、
前記回転軸部材の廻りに設けられ、前記モータケースと前記ポンプケースとをシールするシール部材と、
前記ポンプケースの流体吸入口から前記シール部材へ通ずる流体通路に設けられたろ過部材と、を備えた流体ポンプにおいて、
前記回転翼部材における前記回転軸部材の廻りには、前記ポンプケースの流体吸入口から前記シール部材へ流体を供給するための環状孔部が前記回転軸部材に沿って貫通され、
前記ろ過部材は、前記回転軸部材に近接した位置から前記回転軸部材の径方向外側へ延出するように構成されると共に、前記環状孔部に設けられ、
前記シール部材は、前記回転軸部材又は前記回転軸部材と共に回転する回転部材が摺接する摺接シール部と、
前記摺接シール部と一体に形成されると共に、前記ポンプケースの流体吸入口から前記摺接シール部と前記回転軸部材又は前記回転部材との摺接部へ通ずる流体通路に配置された異物侵入防止部と、を有して構成され、
前記異物侵入防止部は、前記摺接シール部から前記回転翼部材側へ筒状に延出すると共に、前記回転翼部材側へ延出する筒状延出端が前記回転翼部材の前記シール部材側の端面における前記環状孔部の径方向外側部位に当接するように構成されていることを特徴とする流体ポンプ。
A motor configured with a rotating shaft member;
A motor case for housing the motor;
A rotary blade member connected to the rotary shaft member;
A pump case configured to accommodate the rotary blade member and have a fluid suction port at a position opposite to the motor and the rotary blade member on the same axis as the rotary shaft member;
A seal member provided around the rotary shaft member and sealing the motor case and the pump case;
A fluid pump provided with a filtration member provided in a fluid passage leading from the fluid suction port of the pump case to the seal member,
Around the rotary shaft member of the rotary blade member, an annular hole for supplying fluid from the fluid suction port of the pump case to the seal member is penetrated along the rotary shaft member,
The filtration member is configured to extend radially outward of the rotary shaft member from a position close to the rotary shaft member, and is provided in the annular hole portion.
The seal member is a sliding contact seal portion in which the rotating shaft member or a rotating member rotating together with the rotating shaft member is in sliding contact;
Foreign matter intrusion formed integrally with the sliding contact seal portion and disposed in a fluid passage from the fluid suction port of the pump case to the sliding contact portion between the sliding contact seal portion and the rotary shaft member or the rotary member. And a prevention unit,
The foreign matter intrusion preventing portion extends in a cylindrical shape from the sliding contact seal portion to the rotor blade member side, and a cylindrical extension end extending to the rotor blade member side is the seal member of the rotor blade member. A fluid pump, wherein the fluid pump is configured to abut on a radially outer portion of the annular hole on the side end face .
前記異物侵入防止部は、前記回転翼部材側から前記シール部材側へ向かうに従って縮径するように構成されていることを特徴とする請求項1に記載の流体ポンプ。 2. The fluid pump according to claim 1 , wherein the foreign matter intrusion prevention unit is configured to have a diameter reduced from the rotary blade member side toward the seal member side . 前記ろ過部材には、前記ポンプケースの流体吸入口から前記シール部材へ搬送される流体の流れ方向と反対方向へ前記ろ過部材を付勢する弾性体が設けられていることを特徴とする請求項1又は請求項2に記載の流体ポンプ。 The elastic member that biases the filtering member in a direction opposite to a flow direction of a fluid conveyed from the fluid suction port of the pump case to the sealing member is provided in the filtering member. The fluid pump according to claim 1 or 2 . 前記ろ過部材は、前記ポンプケースの流体吸入口から前記シール部材へ搬送される流体の流れ方向に対して反発するように弾性を有することを特徴とする請求項1乃至請求項3のいずれか一項に記載の流体ポンプ。 The said filtration member has elasticity so that it may repel with respect to the flow direction of the fluid conveyed from the fluid inlet of the said pump case to the said seal member, The Claim 1 thru | or 3 characterized by the above-mentioned. The fluid pump according to item . 前記ろ過部材には、振動素子が設けられていることを特徴とする請求項1乃至請求項4のいずれか一項に記載の流体ポンプ。 The fluid pump according to any one of claims 1 to 4, wherein the filtering member is provided with a vibration element .
JP2005047311A 2005-02-23 2005-02-23 Fluid pump Expired - Fee Related JP4505347B2 (en)

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KR101415785B1 (en) 2013-03-04 2014-07-10 주식회사 청석 Pump equipped with brushless direct current motor
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JPS62190897U (en) * 1986-05-28 1987-12-04
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