JP2006129638A - Blower motor - Google Patents

Blower motor Download PDF

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Publication number
JP2006129638A
JP2006129638A JP2004315874A JP2004315874A JP2006129638A JP 2006129638 A JP2006129638 A JP 2006129638A JP 2004315874 A JP2004315874 A JP 2004315874A JP 2004315874 A JP2004315874 A JP 2004315874A JP 2006129638 A JP2006129638 A JP 2006129638A
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Japan
Prior art keywords
impeller
case body
motor
pressure
present
Prior art date
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Pending
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JP2004315874A
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Japanese (ja)
Inventor
Takashi Kanai
孝 金井
Hiroki Matsushita
裕樹 松下
Eri Omori
絵梨 大森
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Nidec Copal Electronics Corp
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Nidec Copal Electronics Corp
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Application filed by Nidec Copal Electronics Corp filed Critical Nidec Copal Electronics Corp
Priority to JP2004315874A priority Critical patent/JP2006129638A/en
Priority to US10/589,301 priority patent/US20070154333A1/en
Priority to PCT/JP2005/011526 priority patent/WO2006046330A1/en
Publication of JP2006129638A publication Critical patent/JP2006129638A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/051—Axial thrust balancing
    • F04D29/0513—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/062—Details of the bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/057—Bearings hydrostatic; hydrodynamic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/06—Lubrication
    • F04D29/063—Lubrication specially adapted for elastic fluid pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a blower motor that makes use of the feature of a fluid dynamic pressure bearing and that can surely prevent such movement of an impeller as to contact a casing unit by rotation. <P>SOLUTION: The blower motor is made up of the casing unit 6, on at least one side of which an air suction port is formed and on the circumferential wall of which an exhaust port is formed; a motor 7 using the fluid dynamic pressure bearing mounted inside or outside the casing unit; an impeller 8, on either one side or both sides of the upper and lower surfaces of which cover plates are provided, that is fixed to the outside circumferential portion of the motor 7 or to a rotating member of the motor inside the casing unit, and that is capable of sucking air from the air suction port and discharges it from the exhaust port by rotation; pressure rooms 30 of the upper and lower portions, to which pressure is applied so as to be capable of pressing the impeller 8 in the thrust direction between the outside circumferential portions of the cover plates of the upper and lower portions of the impeller 8 or inside the casing unit of those portions; and valve rooms 31 of the upper and lower portions, which discharge outside the pressure air of the pressure rooms 30 of the upper and lower portions. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明はブロアモータに関する。   The present invention relates to a blower motor.

従来のブロアモータは一側面の蓋板に空気吸引口が形成され、周壁に排出口が形成されたケース体と、このケース体内に取付けられた流体動圧軸受を用いたモータと、このモータの外周部に位置するように、該モータの回転部材に固定された、回転により前記空気吸引口より空気を吸引し、前記排出口より排出することができる、反空気吸引口側にカバー板を用いた羽根車とで構成されている。   A conventional blower motor has a case body in which an air suction port is formed in a cover plate on one side and a discharge port is formed in a peripheral wall, a motor using a fluid dynamic pressure bearing attached to the case body, and an outer periphery of the motor. The cover plate is used on the side opposite to the air suction port, which is fixed to the rotating member of the motor so as to be positioned at the portion, can suck air from the air suction port by rotation, and can be discharged from the discharge port. It consists of an impeller.

このように構成されたブロアモータは羽根車の回転によって、空気吸引口＜大気圧＜排出口となり、羽根車は空気吸引口側へ引張られ、蓋板に羽根車が接触するという欠点があった。この欠点を解消するためには、ボールベアリングのような強いスラスト保持機構が必要になる。
特になし The blower motor configured in this manner has a drawback that the air suction port <atmospheric pressure <discharge port due to the rotation of the impeller, the impeller is pulled toward the air suction port, and the impeller contacts the cover plate. In order to eliminate this drawback, a strong thrust holding mechanism such as a ball bearing is required.
nothing special

本発明は以上のような従来の欠点に鑑み、流体動圧軸受の特徴を生かすとともに、羽根車が回転によってケース体に接触するような移動を確実に阻止することができるブロアモータを提供することを目的としている。   SUMMARY OF THE INVENTION In view of the above-described conventional drawbacks, the present invention provides a blower motor that makes the most of the characteristics of a fluid dynamic pressure bearing and that can reliably prevent movement of the impeller in contact with the case body by rotation. It is aimed.

本発明の前記ならびにそのほかの目的と新規な特徴は次の説明を添付図面と照らし合わせて読むと、より完全に明らかになるであろう。
ただし、図面はもっぱら解説のためのものであって、本発明の技術的範囲を限定するものではない。 The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.

上記目的を達成するために、本発明は少なくとも一側面に空気吸引口が形成され、周壁に排出口が形成されたケース体と、このケース体内あるいはケース体外に取付けられた流体動圧軸受を用いたモータと、このモータの外周部あるいは前記ケース体内の該モータの回転部材に固定された、回転により前記空気吸引口より空気を吸引し、前記排出口より排出することができる上下面のいずれか一方あるいは両方にカバー板が設けられた羽根車と、この羽根車の上下部のカバー板の外周部あるいは該部位のケース体内との間に、該羽根車をスラスト方向に押し圧できるように圧力が加わる上下部の圧力室および、該上下部の圧力室の圧力空気を外部へ排出する上下部のバルブ室とで
ブロアモータを構成している。 In order to achieve the above object, the present invention uses a case body in which an air suction port is formed on at least one side surface and a discharge port is formed on a peripheral wall, and a fluid dynamic pressure bearing attached to the case body or outside the case body. One of the upper and lower surfaces fixed to the outer peripheral portion of the motor or the rotating member of the motor in the case body and capable of sucking air from the air suction port by rotation and discharging it from the discharge port. Pressure is applied so that the impeller can be pressed in the thrust direction between the impeller provided with a cover plate on one or both sides and the outer peripheral portion of the upper and lower cover plates of the impeller or the case body of the portion. A blower motor is constituted by the upper and lower pressure chambers to which the pressure is applied and the upper and lower valve chambers for discharging the pressure air in the upper and lower pressure chambers to the outside.

以上の説明から明らかなように、本発明にあっては次に列挙する効果が得られる。   As is clear from the above description, the present invention has the following effects.

（１）少なくとも一側面に空気吸引口が形成され、周壁に排出口が形成されたケース体と、このケース体内あるいはケース体外に取付けられた流体動圧軸受を用いたモータと、このモータの外周部あるいは前記ケース体内の該モータの回転部材に固定された、回転により前記空気吸引口より空気を吸引し、前記排出口より排出することができる上下面のいずれか一方あるいは両方にカバー板が設けられた羽根車と、この羽根車の上下部のカバー板の外周部あるいは該部位のケース体内との間に、該羽根車をスラスト方向に押し圧できるように圧力が加わる上下部の圧力室および、該上下部の圧力室の圧力空気を外部へ排出する上下部のバルブ室とで構成されているので、羽根車の回転によって、該羽根車がケース体に接触するようなスラスト方向の移動を、圧力室とバルブ室とで阻止することができる。
したがって、流体動圧軸受の特徴を生かして、羽根車やケース体の損傷を確実に防止することができる。 (1) A case body in which an air suction port is formed on at least one side surface and a discharge port is formed on a peripheral wall, a motor using a fluid dynamic pressure bearing attached to the case body or the outside of the case body, and an outer periphery of the motor A cover plate is provided on either or both of the upper and lower surfaces fixed to the rotating member of the motor in the casing or the case body and capable of sucking air from the air suction port by rotation and discharging it from the discharge port. The upper and lower pressure chambers to which pressure is applied so that the impeller can be pressed in the thrust direction between the impeller and the outer peripheral portion of the upper and lower cover plates of the impeller or the case body of the portion, and Since the upper and lower valve chambers discharge the pressurized air in the upper and lower pressure chambers to the outside, the thrust wheel contacts the case body by the rotation of the impeller. Movement direction can be prevented in the pressure chamber and the valve chamber.
Therefore, it is possible to reliably prevent the impeller and the case body from being damaged by utilizing the characteristics of the fluid dynamic pressure bearing.

（２）前記（１）によって、圧力室とバルブ室を形成するだけでよいので、部品点数を増すことなく実施できる。 (2) Since only the pressure chamber and the valve chamber need be formed by the above (1), the present invention can be implemented without increasing the number of parts.

（３）前記（１）によって、上下部のバルブ室の開閉方向の移動によって、羽根車が釣り合いのとれた位置で回転させることができる。
したがって、安定した送風を図ることができる。 (3) According to the above (1), the impeller can be rotated at a balanced position by the movement of the upper and lower valve chambers in the opening and closing direction.
Therefore, stable ventilation can be achieved.

（４）請求項２、３も前記（１）〜（３）と同様な効果が得られる。 (4) In the second and third aspects, the same effects as in the above (1) to (3) can be obtained.

以下、図面に示す本発明を実施するための最良の形態により、本発明を詳細に説明する。   Hereinafter, the present invention will be described in detail with reference to the best mode for carrying out the invention shown in the drawings.

図１ないし図８に示す本発明を実施するための最良の第１の形態において、１は本発明のブロアモータで、このブロアモータ１は一側面のほぼ中央部に空気吸引口２が形成された蓋板３で覆われ、周壁４に排出口５が形成されたケース体６と、このケース体６内に取付けられた高速回転で駆動される流体動圧軸受を用いたモータ７と、このモータ７の外周部に位置するように、該モータ７の回転部材に固定された、回転により前記ケース体６の空気吸引口２より空気を吸引し、前記排出口５より排出することができる羽根車８とで構成されている。   In the first preferred embodiment for carrying out the present invention shown in FIGS. 1 to 8, reference numeral 1 denotes a blower motor according to the present invention. The blower motor 1 is a lid having an air suction port 2 formed at a substantially central portion of one side surface. A case body 6 covered with a plate 3 and having a discharge port 5 formed in the peripheral wall 4, a motor 7 using a fluid dynamic pressure bearing mounted in the case body 6 and driven at high speed rotation, and the motor 7 The impeller 8 is fixed to the rotating member of the motor 7 so as to be positioned on the outer peripheral portion of the motor 7, and is capable of sucking air from the air suction port 2 of the case body 6 by rotation and discharging it from the discharge port 5. It consists of and.

前記ケース体６は外周部にビス９等の挿入孔１０が形成された取付部１１、１１を有し、排出口５が形成された周壁４を有するケース体本体１２と、このケース体本体１２の底板１２ａに形成された下部空気吸引口１３と、前記ケース体本体１２の上部開口部１２ｂを覆う空気吸引口２が形成された蓋板３とで構成されている。   The case body 6 has mounting portions 11 and 11 in which insertion holes 10 such as screws 9 are formed in the outer peripheral portion, a case body main body 12 having a peripheral wall 4 in which a discharge port 5 is formed, and the case body main body 12. The lower air suction port 13 formed in the bottom plate 12a and the lid plate 3 formed with the air suction port 2 that covers the upper opening 12b of the case body 12 are formed.

前記モータ７は前記ケース体６のケース体本体１２の内底面に固定されたモータ駆動回路（図示せず）が設けられたベース板１４と、このベース板１４より上方へ突出するように固定されたシャフト１５と、このシャフト１５の外周部に微少隙間１６を介して配置されたスリーブ１７と、このスリーブ１７の外周部に取付けられた永久磁石が配置されたロータ１８と、このロータ１８の外周部に位置するように、前記ベース板１４に取付けられたコアレス波形連続コイル１９と、このコアレス波形連続コイル１９の外周部に位置するように設けられたバックヨーク２０と、前記スリーブ１７、ロータ１８およびバックヨーク２０を支持するとともに、前記シャフト１５の上部および該バックヨーク２０の外周部を覆う回転部材としてのハブ２１と、前記シャフト１５を覆うハブ２１の上部の凹部２２に固定されたリング状のスラストマグネット２３と、このスラストマグネット２３と対向するように前記シャフト１５の上部に固定されたリング状のスラストマグネット２４とで構成されている。   The motor 7 is fixed to a base plate 14 provided with a motor drive circuit (not shown) fixed to the inner bottom surface of the case body 12 of the case body 6 and to protrude upward from the base plate 14. A shaft 15, a sleeve 17 disposed on the outer periphery of the shaft 15 through a minute gap 16, a rotor 18 on which a permanent magnet attached to the outer periphery of the sleeve 17 is disposed, and an outer periphery of the rotor 18. The coreless corrugated continuous coil 19 attached to the base plate 14 so as to be located at the center, the back yoke 20 provided so as to be located at the outer periphery of the coreless corrugated continuous coil 19, the sleeve 17 and the rotor 18 And the hub 2 as a rotating member that supports the back yoke 20 and covers the upper portion of the shaft 15 and the outer periphery of the back yoke 20. A ring-shaped thrust magnet 23 fixed to the concave portion 22 on the upper portion of the hub 21 covering the shaft 15, and a ring-shaped thrust magnet 24 fixed to the upper portion of the shaft 15 so as to face the thrust magnet 23. It consists of and.

前記羽根車８は前記モータ７の回転部材としてのハブ２１の外周部に嵌合固定されたボス部２５の上下端部より複数個の透孔２６、２６を介して外方へ突出するフランジ状の上下部のカバー板２７、２７と、この上下部のカバー板２７、２７間を多数個に仕切る弧状の多数個の羽根２８と、前記上下部のカバー板２７、２７の外周部寄りの部位と、前記ケース体６の内壁面６ａ、６ａとの間に、該上下部のカバー板２７、２７をスラスト方向に押し圧できるように、圧力が加わるように凹部２９、２９を形成して形成した上下部の圧力室３０、３０とで構成され、該羽根車８の上下部の圧力室３０、３０と前記上下部のカバー板２７、２７の複数個の透孔２６、２６との間には上下部のバルブ室３１、３１ができるように取付けられている。   The impeller 8 has a flange shape that protrudes outward from the upper and lower end portions of a boss portion 25 fitted and fixed to the outer peripheral portion of a hub 21 as a rotating member of the motor 7 through a plurality of through holes 26, 26. Upper and lower cover plates 27, 27, a large number of arcuate blades 28 partitioning the upper and lower cover plates 27, 27 into a large number, and a portion near the outer periphery of the upper and lower cover plates 27, 27 And recesses 29 and 29 are formed between the inner wall surfaces 6a and 6a of the case body 6 so that pressure is applied so that the upper and lower cover plates 27 and 27 can be pressed in the thrust direction. The upper and lower pressure chambers 30 and 30 are arranged between the upper and lower pressure chambers 30 and 30 of the impeller 8 and the plurality of through holes 26 and 26 of the upper and lower cover plates 27 and 27. Are attached so that upper and lower valve chambers 31, 31 are formed.

上記構成のブロアモータ１は、モータ７を駆動させると羽根車８が高速で回転し、ケース体６の空気吸引口２、下部空気吸引口１３より空気を吸引し、排出口５より排出することができ、小型でも大風量で高圧の送風ができる。
この時、モータ７はシャフト１５の外周部に微少隙間１６を介して配置したスリーブ１７の外周部に回転構造の永久磁石が配置されたロータ１８とコアレス波形連続コイル１９が配置されているので、回転力を発生する磁気回路からシャフト１５とスリーブ１７に加えられる有害な力は全くなくなる。
このため、基本的にはロータ１８の自重を支えるだけの軸受け剛性があればよいことになる。
また、羽根車８が高速回転しても上下部の圧力室３０、３０に加わる圧力に差が生じると、低い圧力の方向へ羽根車８が移動し、高い圧力室３０の圧力が、該圧力室３０と連通するバルブ室３１から外部へ排出される操作を繰り返し、釣り合いのとれた位置で羽根車８が回転する。
[発明を実施するための異なる形態] In the blower motor 1 configured as described above, when the motor 7 is driven, the impeller 8 rotates at high speed, and air is sucked from the air suction port 2 and the lower air suction port 13 of the case body 6 and discharged from the discharge port 5. Even if it is small, it can blow high pressure with a large air volume.
At this time, the motor 7 has the rotor 18 and the coreless corrugated continuous coil 19 disposed on the outer peripheral portion of the sleeve 17 disposed on the outer peripheral portion of the shaft 15 via the minute gap 16. There is no harmful force applied to the shaft 15 and the sleeve 17 from the magnetic circuit that generates the rotational force.
For this reason, basically, it is sufficient that the bearing rigidity is sufficient to support the weight of the rotor 18.
Further, even if the impeller 8 rotates at a high speed, if there is a difference in pressure applied to the upper and lower pressure chambers 30, 30, the impeller 8 moves in the direction of lower pressure, and the pressure in the higher pressure chamber 30 is The operation of discharging from the valve chamber 31 communicating with the chamber 30 to the outside is repeated, and the impeller 8 rotates at a balanced position.
[Different forms for carrying out the invention]

次に、図９ないし図３２に示す本発明を実施するための異なる形態につき説明する。なお、これらの本発明を実施するための異なる形態の説明に当って、前記本発明を実施するための最良の第１の形態と同一構成部分には同一符号を付して重複する説明を省略する。   Next, different modes for carrying out the present invention shown in FIGS. 9 to 32 will be described. In the description of these different modes for carrying out the present invention, the same components as those in the best mode for carrying out the present invention are designated by the same reference numerals and redundant description is omitted. To do.

図９ないし図１１に示す本発明を実施するための第２の形態において、前記本発明を実施するための最良の第１の形態と主に異なる点は、上下部のバルブ室３１Ａ、３１Ａが傾斜面となるように傾斜面３２、３２が形成された上下部ガイド板２７Ａ、２７Ａを用いた、根元部よりも先端部の厚さ寸法が小さい羽根車８Ａと、この羽根車８Ａの上下部のガイド板２７Ａ、２７Ａの傾斜面３２、３２と対応する部位の底面に下部空気吸引口のないケース体６Ａの内壁面に傾斜面３３、３３を形成した点で、このように構成したブロアモータ１Ａにしても、前記本発明を実施するための最良の第１の形態と同様な作用効果が得られる。   The second embodiment for carrying out the present invention shown in FIGS. 9 to 11 is mainly different from the best first embodiment for carrying out the present invention in that the upper and lower valve chambers 31A and 31A are different from each other. An impeller 8A using the upper and lower guide plates 27A, 27A on which the inclined surfaces 32, 32 are formed so as to be inclined, and having a tip portion with a smaller thickness than the base portion, and upper and lower portions of the impeller 8A The blower motor 1A configured in this way is formed by forming inclined surfaces 33, 33 on the inner wall surface of the case body 6A having no lower air suction port on the bottom surface of the portion corresponding to the inclined surfaces 32, 32 of the guide plates 27A, 27A. However, the same effects as those of the best first embodiment for carrying out the present invention can be obtained.

図１２ないし図１４に示す本発明を実施するための第３の形態において、前記本発明を実施するための第２の形態と主に異なる点は、外周部が凸状に突出し、平面状態の上下部のバルブ室３１Ｂ、３１Ｂを形成する羽根車８Ｂとケース体６Ｂとを用いた点で、このような羽根車８Ｂとケース体６Ｂとを用いて構成したブロアモータ１Ｂにしても、前記本発明を実施するための第２の形態と同様な作用効果が得られる。   The third embodiment for carrying out the present invention shown in FIGS. 12 to 14 is mainly different from the second embodiment for carrying out the present invention in that the outer peripheral portion protrudes in a convex shape and is in a planar state. Even in the blower motor 1B configured using such an impeller 8B and the case body 6B in terms of using the impeller 8B and the case body 6B that form the upper and lower valve chambers 31B, 31B, the present invention described above. The same effects as those of the second embodiment for implementing the above are obtained.

図１５ないし図１７に示す本発明を実施するための第４の形態において、前記本発明を実施するための第２の形態と主に異なる点は、上部の圧力室３０とバルブ室３１とが平面状態に形成し、上部からの圧力の排出を羽根車８Ｃの自重でできるようにした点で、このように構成したブロアモータ１Ｃにしても、前記本発明を実施するための第２の形態と同様な作用効果が得られる。   The fourth embodiment for carrying out the present invention shown in FIGS. 15 to 17 is mainly different from the second embodiment for carrying out the present invention in that an upper pressure chamber 30 and a valve chamber 31 are different from each other. The blower motor 1C configured in this way is formed in a flat state and can discharge pressure from the upper part by its own weight of the impeller 8C. Similar effects can be obtained.

図１８ないし図２０に示す本発明を実施するための第５の形態において、前記本発明を実施するための第３の形態と主に異なる点は、上部の圧力室３０とバルブ室３１とが平面状態に形成し、上部からの圧力の排出を羽根車８Ｄの自重でできるようにした点で、このように構成したブロアモータ１Ｄにしても、前記本発明を実施するための第３の形態と同様な作用効果が得られる。   The fifth embodiment for carrying out the present invention shown in FIGS. 18 to 20 is mainly different from the third embodiment for carrying out the present invention in that an upper pressure chamber 30 and a valve chamber 31 are different from each other. The blower motor 1D configured in this way is formed in a flat state and can discharge pressure from the upper part by its own weight of the impeller 8D. Similar effects can be obtained.

図２１ないし図２３に示す本発明を実施するための第６の形態において、前記本発明を実施するための第２の形態と主に異なる点は、上下部バルブ室３１Ｃ、３１Ｃを曲面となるように曲面３４、３４を形成した上下部のカバー板２７Ｂ、２７Ｂを用いた羽根車８Ｅと、内壁面に曲面３５、３５を形成したケース体６Ｃを用いた点で、このように構成したブロアモータ１Ｅにしても、前記本発明を実施するための第２の形態と同様な作用効果が得られる。   The sixth embodiment for carrying out the present invention shown in FIGS. 21 to 23 is mainly different from the second embodiment for carrying out the present invention in that the upper and lower valve chambers 31C and 31C are curved. The blower motor configured in this way in that the impeller 8E using the upper and lower cover plates 27B and 27B formed with the curved surfaces 34 and 34 and the case body 6C formed with the curved surfaces 35 and 35 on the inner wall surface are used. Even if it is 1E, the same effect as the 2nd form for carrying out the above-mentioned present invention is acquired.

図２４ないし図２６に示す本発明を実施するための第７の形態において、前記本発明を実施するための第２の形態と主に異なる点は、先端部の厚さが順次小さくなるように形成された羽根車８Ｆと、この羽根車８Ｆの上下部のガイド板２７Ｃ、２７Ｃの傾斜面３６、３６よりも小さな傾斜面３７、３７となる内壁面にしたケース体６Ｄとを用いた点で、このように構成したブロアモータ１Ｆにしても、前記本発明を実施するための第２の形態と同様な作用効果が得られる。   The seventh embodiment for carrying out the present invention shown in FIGS. 24 to 26 is mainly different from the second embodiment for carrying out the present invention in that the thickness of the tip portion is successively reduced. In the point which used the formed impeller 8F and the case body 6D made into the inner wall surface used as the inclined surfaces 37 and 37 smaller than the inclined surfaces 36 and 36 of the upper and lower guide plates 27C and 27C of this impeller 8F. Even with the blower motor 1F configured as described above, the same effects as those of the second embodiment for carrying out the present invention can be obtained.

図２７ないし図２９に示す本発明を実施するための第８の形態において、前記本発明を実施するための第２の形態と主に異なる点は、ケース体６Ａの底面にモータ７を取付けた点で、このように構成したブロアモータ１Ｇにしても、前記本発明を実施するための第２の形態と同様な作用効果が得られる。   The eighth embodiment for carrying out the present invention shown in FIGS. 27 to 29 is different from the second embodiment for carrying out the present invention in that the motor 7 is attached to the bottom surface of the case body 6A. In this regard, even with the blower motor 1G configured as described above, the same operational effects as those of the second embodiment for carrying out the present invention can be obtained.

図３０ないし図３２に示す本発明を実施するための第９の形態において、前記本発明を実施するための第２の形態と主に異なる点は、空気吸引口２が周壁３８に形成されたカバー体３９を使用するケース体６Ｅを用いた点で、このように形成されたケース体６Ｅを用いて構成したブロアモータ１Ｈにしても、前記本発明を実施するための第２の形態と同様な作用効果が得られる。   The ninth embodiment for carrying out the present invention shown in FIGS. 30 to 32 is mainly different from the second embodiment for carrying out the present invention in that the air suction port 2 is formed in the peripheral wall 38. The blower motor 1H configured using the case body 6E formed in this way is the same as the second embodiment for carrying out the present invention in that the case body 6E using the cover body 39 is used. The effect is obtained.

なお、前記本発明を実施する形態の説明では上下面の両方にカバー板が設けられた羽根車を使用したものについて説明したが、本発明はこれに限らず、上下面のいずれか一方にカバー板が設けられた羽根車を用いても良い。この場合、自重やマグネットの吸引力（反発力）等により、羽根車がカバー板側に付勢されていれば良い。   In the description of the embodiment for carrying out the present invention, the description has been made on the use of the impeller having the cover plates provided on both the upper and lower surfaces. However, the present invention is not limited to this, and the cover is provided on either the upper or lower surface. An impeller provided with a plate may be used. In this case, it is only necessary that the impeller is urged toward the cover plate by its own weight or the attractive force (repulsive force) of the magnet.

本発明はブロアモータを製造する産業で利用される。   The present invention is used in the industry for manufacturing blower motors.

本発明を実施するための最良の第１の形態の平面図。The top view of the best 1st form for implementing this invention. 本発明を実施するための最良の第１の形態の正面図。1 is a front view of the best first embodiment for carrying out the present invention. 本発明を実施するための最良の第１の形態の底面図。The bottom view of the best 1st form for implementing this invention. 図１の４−４線に沿う断面図。Sectional drawing in alignment with line 4-4 in FIG. 本発明を実施するための最良の第１の形態のケース体の説明図。Explanatory drawing of the case body of the best 1st form for implementing this invention. 本発明を実施するための最良の第１の形態のモータの説明図。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 本発明を実施するための最良の第１の形態の羽根車の説明図。Explanatory drawing of the impeller of the best 1st form for implementing this invention. 本発明を実施するための最良の第１の形態の羽根車のスラスト方向の動作説明図。The operation | movement explanatory drawing of the thrust direction of the impeller of the best 1st form for implementing this invention. 本発明を実施するための第２の形態の平面図。The top view of the 2nd form for carrying out the present invention. 図９の１０−１０線に沿う断面図。Sectional drawing which follows the 10-10 line of FIG. 本発明を実施するための第２の形態の羽根車の説明図。Explanatory drawing of the impeller of the 2nd form for implementing this invention. 本発明を実施するための第３の形態の平面図。The top view of the 3rd form for carrying out the present invention. 図１２の１３−１３線に沿う断面図。Sectional drawing which follows the 13-13 line | wire of FIG. 本発明を実施するための第３の形態の羽根車の説明図。Explanatory drawing of the impeller of the 3rd form for implementing this invention. 本発明を実施するための第４の形態の平面図。The top view of the 4th form for carrying out the present invention. 図１５の１６−１６線に沿う断面図。FIG. 16 is a cross-sectional view taken along line 16-16 in FIG. 15; 本発明を実施するための第４の形態の羽根車の説明図。Explanatory drawing of the impeller of the 4th form for implementing this invention. 本発明を実施するための第５の形態の平面図。The top view of the 5th form for implementing this invention. 図１８の１９−１９線に沿う断面図。FIG. 19 is a cross-sectional view taken along line 19-19 in FIG. 本発明を実施するための第５の形態の羽根車の説明図。Explanatory drawing of the impeller of the 5th form for implementing this invention. 本発明を実施するための第６の形態の平面図。The top view of the 6th form for carrying out the present invention. 図２１の２２−２２線に沿う断面図。FIG. 22 is a sectional view taken along line 22-22 in FIG. 21; 本発明を実施するための第６の形態の羽根車の説明図。Explanatory drawing of the impeller of the 6th form for implementing this invention. 本発明を実施するための第７の形態の平面図。The top view of the 7th form for implementing this invention. 図２４の２５−２５線に沿う断面図。FIG. 25 is a sectional view taken along line 25-25 in FIG. 24; 本発明を実施するための第７の形態の羽根車の説明図。Explanatory drawing of the impeller of the 7th form for implementing this invention. 本発明を実施するための第８の形態の平面図。The top view of the 8th form for carrying out the present invention. 図２７の２８−２８線に沿う断面図。FIG. 28 is a sectional view taken along line 28-28 in FIG. 27; 本発明を実施するための第８の形態のモータの説明図。Explanatory drawing of the motor of the 8th form for implementing this invention. 本発明を実施するための第９の形態の平面図。The top view of the 9th form for implementing this invention. 本発明を実施するための第９の形態の正面図。The front view of the 9th form for carrying out the present invention. 図３０の３２‐３２線に沿う断面図。FIG. 32 is a cross-sectional view taken along line 32-32 in FIG. 30.

符号の説明Explanation of symbols

１、１Ａ、１Ｂ、１Ｃ、１Ｄ、１Ｅ、１Ｆ、１Ｇ、１Ｈ：ブロアモータ、
２：空気吸引口 ３：蓋板、
４：周壁、 ５：排出口、
６、６Ａ、６Ｂ、６Ｃ、６Ｄ、６Ｅ：ケース体、
７：モータ、
８、８Ａ、８Ｂ、８Ｃ、８Ｄ、８Ｅ、８Ｆ：羽根車、
９：ビス、 １０：挿入孔、
１１：取付部、 １２：ケース体本体、
１３：下部空気吸引口、 １４：ベース板、
１５：シャフト、 １６：微少隙間、
１７：スリーブ、 １８：ロータ、
１９：コアレス波形連続コイル、２０：バックヨーク、
２１：回転部材としてのハブ、 ２２：凹部、
２３：スラストマグネット、 ２４：スラストマグネット、
２５：ボス部、 ２６：透孔、
２７、２７Ａ、２７Ｂ、２７Ｃ：上下部のカバー板、
２８：羽根、 ２９：凹部、
３０：上下部の圧力室、
３１、３１Ａ、３１Ｂ、３１Ｃ：上下部のバルブ室、
３２：傾斜面、 ３３：傾斜面、
３４：曲面、 ３５：曲面、
３６：傾斜面、 ３７：傾斜面、
３８：周壁、 ３９：カバー体。
1, 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H: blower motor,
2: Air suction port 3: Cover plate,
4: peripheral wall, 5: discharge port,
6, 6A, 6B, 6C, 6D, 6E: case body,
7: Motor,
8, 8A, 8B, 8C, 8D, 8E, 8F: impeller,
9: Screw, 10: Insertion hole,
11: mounting portion, 12: case body,
13: Lower air suction port, 14: Base plate,
15: Shaft, 16: Small gap,
17: Sleeve, 18: Rotor,
19: Coreless waveform continuous coil, 20: Back yoke,
21: Hub as a rotating member, 22: Recess,
23: Thrust magnet, 24: Thrust magnet,
25: Boss part, 26: Through hole,
27, 27A, 27B, 27C: upper and lower cover plates,
28: Feather, 29: Recess,
30: Upper and lower pressure chambers,
31, 31A, 31B, 31C: upper and lower valve chambers,
32: inclined surface, 33: inclined surface,
34: curved surface, 35: curved surface,
36: inclined surface, 37: inclined surface,
38: peripheral wall, 39: cover body.

Claims (3)

少なくとも一側面に空気吸引口が形成され、周壁に排出口が形成されたケース体と、このケース体内あるいはケース体外に取付けられた流体動圧軸受を用いたモータと、このモータの外周部あるいは前記ケース体内の該モータの回転部材に固定された、回転により前記空気吸引口より空気を吸引し、前記排出口より排出することができる上下面のいずれか一方あるいは両方にカバー板が設けられた羽根車と、この羽根車の上下部のカバー板の外周部あるいは該部位のケース体内との間に、該羽根車をスラスト方向に押し圧できるように圧力が加わる上下部の圧力室および、該上下部の圧力室の圧力空気を外部へ排出する上下部のバルブ室とを備えることを特徴とするブロアモータ。 A case body in which an air suction port is formed on at least one side surface and a discharge port is formed on a peripheral wall; a motor using a fluid dynamic pressure bearing attached to the inside of the case body or the outside of the case body; A blade provided with a cover plate on either or both of the upper and lower surfaces fixed to the rotating member of the motor in the case body and capable of sucking air from the air suction port by rotation and discharging it from the discharge port Upper and lower pressure chambers that apply pressure so that the impeller can be pressed in the thrust direction between the wheel and the outer peripheral portion of the upper and lower cover plates of the impeller or in the case body, and the upper and lower pressure chambers A blower motor comprising an upper and lower valve chamber for discharging the pressure air of the pressure chamber of the portion to the outside. 上下部のバルブ室はケース体内壁面と羽根車のカバー板を、上下部を傾斜面あるいは曲面に形成したものであることを特徴とする請求項１記載のブロアモータ。 2. The blower motor according to claim 1, wherein the upper and lower valve chambers are formed by forming a case inner wall surface and an impeller cover plate with the upper and lower portions being inclined surfaces or curved surfaces. 上下部のバルブ室はケース体内壁面と羽根車のカバー板の下部を傾斜面あるいは平面に形成され、上部は該羽根車の自重でスラスト方向の移動を規制できる形状に形成されていることを特徴とする請求項１記載のブロアモータ。
The upper and lower valve chambers are formed such that the inner wall of the case and the lower part of the cover plate of the impeller are inclined or flat, and the upper part is formed in a shape capable of restricting movement in the thrust direction by the weight of the impeller. The blower motor according to claim 1.
JP2004315874A 2004-10-29 2004-10-29 Blower motor Pending JP2006129638A (en)

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PCT/JP2005/011526 WO2006046330A1 (en) 2004-10-29 2005-06-23 Blower motor

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