JP2016131476A - motor - Google Patents

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Publication number
JP2016131476A
JP2016131476A JP2015005733A JP2015005733A JP2016131476A JP 2016131476 A JP2016131476 A JP 2016131476A JP 2015005733 A JP2015005733 A JP 2015005733A JP 2015005733 A JP2015005733 A JP 2015005733A JP 2016131476 A JP2016131476 A JP 2016131476A
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Prior art keywords
cover
motor
fan cover
plate portion
fan
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JP6466180B2 (en
Inventor
久輝 松葉
Hisateru Matsuba
久輝 松葉
卓也 永易
Takuya Nagai
卓也 永易
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Sumitomo Heavy Industries Ltd
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Sumitomo Heavy Industries Ltd
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Priority to JP2015005733A priority Critical patent/JP6466180B2/en
Priority to CN201510631005.9A priority patent/CN105811635B/en
Priority to DE102015121698.1A priority patent/DE102015121698A1/en
Publication of JP2016131476A publication Critical patent/JP2016131476A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium

Abstract

PROBLEM TO BE SOLVED: To prevent water etc. from entering into a fan cover in a motor vertically placed.SOLUTION: A motor 10, which is arranged so that an anti-load side of the motor is located above a load side in a vertical direction, is provided. The motor 10 includes: a fan provided at an anti-load side end part of a motor shaft; a fan cover 18 covering the fan; and an umbrella member 20 covering the fan cover. The fan cover 18 has: a cylindrical part 18a; and a lid part 18b which closes the anti-load side end part of the cylindrical part 18a. A suction port is provided at the lid part 18b. The umbrella member 20 has: a first cover part 20a covering a radial outer side of the cylindrical part 18a; and a second cover part 20b closing an anti-load side end part of the first cover part 20a and covering a rear side of the lid part 18b.SELECTED DRAWING: Figure 6

Description

本発明は、縦置きされるモータに関する。   The present invention relates to a vertically placed motor.

冷却用のファンを備えるモータには、ファンを覆うファンカバーが設けられる。通常、ファンカバーには吸気口が形成されている。モータを例えば屋外に縦置きで設置する場合には、吸気口を通して雨水等がファンカバー内に浸入しないようにする必要がある。   A motor cover including a cooling fan is provided with a fan cover that covers the fan. Usually, an air inlet is formed in the fan cover. When the motor is installed vertically, for example, it is necessary to prevent rainwater or the like from entering the fan cover through the air inlet.

特許文献１には、立形屋外全閉外扇形回転電機の上部に外扇カバーが取り付けられ、外扇カバーの上部に防水カバーが取り付けられた構造が開示されている。   Patent Document 1 discloses a structure in which an outer fan cover is attached to an upper part of a vertical outdoor fully-closed outer fan-shaped rotating electric machine, and a waterproof cover is attached to an upper part of the outer fan cover.

特開平０５−１８４０９７号公報Japanese Patent Laid-Open No. 05-184097

上記特許文献１では、外扇カバーの上方は防水カバーで覆われているが、防水カバーの側方は開放されている。そのため、雨水が側方から吹き込み外扇カバーの吸気口を通して外扇カバー内に浸入するおそれがある。   In Patent Document 1, the upper part of the outer fan cover is covered with a waterproof cover, but the side of the waterproof cover is open. Therefore, rainwater blows in from the side and may enter the outer fan cover through the air inlet of the outer fan cover.

本発明はこうした状況に鑑みてなされたものであり、その目的は、縦置きされるモータにおいて、ファンカバー内への水等の浸入を防止する技術を提供することにある。   The present invention has been made in view of such a situation, and an object of the present invention is to provide a technique for preventing water and the like from entering the fan cover in a vertically placed motor.

本発明のある態様は、モータの反負荷側が負荷側よりも鉛直上側となるように配置されるモータである。モータは、モータ軸の反負荷側端部に設けられたファンと、該ファンを覆うファンカバーと、該ファンカバーを覆う傘部材と、を備える。前記ファンカバーは、筒状部と、該筒状部の反負荷側端部を閉塞する蓋部と、を有し、該蓋部には吸気口が設けられる。前記傘部材は、前記筒状部の径方向外側を覆う第１覆い部と、該第１覆い部の反負荷側端部を閉塞し前記蓋部の後方を覆う第２覆い部と、を有する。   An aspect of the present invention is a motor that is arranged such that the non-load side of the motor is vertically above the load side. The motor includes a fan provided at a non-load side end of the motor shaft, a fan cover that covers the fan, and an umbrella member that covers the fan cover. The fan cover includes a cylindrical portion and a lid portion that closes a non-load side end portion of the cylindrical portion, and the lid portion is provided with an intake port. The umbrella member includes a first cover portion that covers a radially outer side of the cylindrical portion, and a second cover portion that closes a non-load side end portion of the first cover portion and covers the rear of the lid portion. .

この態様によると、モータの側方から吹き込む雨水等の液体が、ファンカバーの筒状部の径方向外側を覆う第１覆い部によって弾かれるので、ファンカバーの吸気口を通してファンカバー内に水等の液体が浸入するのを防止することができる。   According to this aspect, liquid such as rainwater blown from the side of the motor is repelled by the first cover portion that covers the radially outer side of the tubular portion of the fan cover, so that water or the like enters the fan cover through the air inlet of the fan cover. It is possible to prevent the liquid from entering.

以上の構成要素の任意の組み合わせや、本発明の構成要素や表現を方法、装置、システムなどの間で相互に置換したものもまた、本発明の態様として有効である。   Arbitrary combinations of the above-described constituent elements and those obtained by replacing constituent elements and expressions of the present invention with each other among methods, apparatuses, systems, etc. are also effective as an aspect of the present invention.

本発明によれば、縦置きされるモータにおいて、ファンカバー内への水等の液体の浸入を防止することができる。   ADVANTAGE OF THE INVENTION According to this invention, in the motor placed vertically, infiltration of liquids, such as water, in a fan cover can be prevented.

本発明の一実施形態に係るモータの側面図である。It is a side view of the motor concerning one embodiment of the present invention. （ａ）は傘部材の側面図、（ｂ）は傘部材の平面図である。(A) is a side view of an umbrella member, (b) is a top view of an umbrella member. （ａ）は本発明の一実施形態に係る固定部材の側面図、（ｂ）は固定部材の平面図である。(A) is a side view of the fixing member which concerns on one Embodiment of this invention, (b) is a top view of a fixing member. 図３の固定部材を用いて傘部材をファンカバーに固定する様子を示す、モータの縦方向断面図である。FIG. 4 is a longitudinal sectional view of a motor showing a state in which an umbrella member is fixed to a fan cover using the fixing member of FIG. 3. （ａ）は本発明の一実施形態に係る固定部材の側面図、（ｂ）は固定部材の平面図である。(A) is a side view of the fixing member which concerns on one Embodiment of this invention, (b) is a top view of a fixing member. 図５の固定部材を用いて傘部材をファンカバーに固定する様子を示す、モータの縦方向断面図である。FIG. 6 is a longitudinal sectional view of a motor showing a state in which an umbrella member is fixed to a fan cover using the fixing member of FIG. 5. （ａ）は変形例に係る固定部材の側面図、（ｂ）は固定部材の平面図である。(A) is a side view of the fixing member which concerns on a modification, (b) is a top view of a fixing member. 図７の固定部材を用いて傘部材をファンカバーに固定する様子を示す、モータの横方向断面図である。FIG. 8 is a transverse cross-sectional view of the motor showing how the umbrella member is fixed to the fan cover using the fixing member of FIG. 7.

図１は、本発明の一実施形態に係るモータ１０の側面図である。モータ１０は、屋外にて縦置き、すなわちモータの反負荷側が負荷側よりも鉛直上側となるように設置される。なお、モータ１０の中心軸と鉛直方向とが完全に一致する必要はなく、モータ１０の中心軸が鉛直方向から傾くようにモータが設置されていてもよい。   FIG. 1 is a side view of a motor 10 according to an embodiment of the present invention. The motor 10 is installed vertically outdoors, that is, so that the non-load side of the motor is vertically higher than the load side. Note that the central axis of the motor 10 and the vertical direction do not have to coincide completely, and the motor may be installed such that the central axis of the motor 10 is inclined from the vertical direction.

モータ１０は、主にモータ本体１２、負荷側カバー１３、端子箱１６、ファン（図示せず）、ファンカバー１８、および傘部材２０で構成される。   The motor 10 mainly includes a motor body 12, a load side cover 13, a terminal box 16, a fan (not shown), a fan cover 18, and an umbrella member 20.

モータ本体１２は例えばかご形誘導電動機であるが、他のタイプのモータであってもよい。このようなモータの構造は周知であるため、本明細書では詳細な説明を省略する。モータの負荷側には、例えば遊星歯車式の減速機が取り付けられる。   The motor body 12 is a squirrel-cage induction motor, for example, but may be another type of motor. Since the structure of such a motor is well-known, detailed description is abbreviate | omitted in this specification. For example, a planetary gear type speed reducer is attached to the load side of the motor.

モータ軸１４には例えば減速機が連結され、当該減速機の出力軸に、例えばキーやカップリング等を使用して任意の被駆動機械（図示せず）が連結される。端子箱１６には、モータ本体１２およびファンに電力を供給する電線が接続される。   For example, a reduction gear is connected to the motor shaft 14, and an arbitrary driven machine (not shown) is connected to the output shaft of the reduction gear using, for example, a key or a coupling. The terminal box 16 is connected to an electric wire that supplies power to the motor body 12 and the fan.

モータ軸１４の反負荷側端部には、放熱用のファン（図示せず）が設けられる。モータ本体１２の反負荷側には、ファンの外側を覆って保護するためのファンカバー１８が取り付けられる。ファンカバー１８は、モータ本体１２とほぼ同じ直径を有する略円筒形であり、ファンの側面を周方向に延びる筒状部１８ａと、筒状部１８ａの反負荷側端部を閉塞する蓋部１８ｂと、で構成される（図４、６を参照）。蓋部１８ｂには、ファンカバー１８の内外に空気を流通させるための多数の吸気口１８ｃが形成される（図８を参照）。   A heat radiating fan (not shown) is provided at the opposite end of the motor shaft 14. A fan cover 18 for covering and protecting the outside of the fan is attached to the opposite side of the motor body 12. The fan cover 18 has a substantially cylindrical shape having substantially the same diameter as that of the motor body 12, and includes a cylindrical portion 18a extending in the circumferential direction on the side surface of the fan, and a lid portion 18b that closes a non-load side end of the cylindrical portion 18a. (See FIGS. 4 and 6). The lid portion 18b is formed with a large number of air inlets 18c for circulating air inside and outside the fan cover 18 (see FIG. 8).

モータ１０を屋外に縦置きで設置する場合、雨天時にファンカバー１８の吸気口１８ｃから水が浸入するのを防止するため、ファンカバー１８を覆うように傘部材２０が設けられる。   When the motor 10 is vertically installed outdoors, an umbrella member 20 is provided so as to cover the fan cover 18 in order to prevent water from entering from the air inlet 18c of the fan cover 18 in the rain.

図２（ａ）は傘部材２０の側面図、図２（ｂ）は傘部材２０の平面図である。傘部材２０は、ファンカバー１８の筒状部１８ａの径方向外側を覆う第１覆い部２０ａと、第１覆い部２０ａの反負荷側端部を閉塞する第２覆い部２０ｂと、で構成される。図２に示す傘部材２０は全体的に円筒形であるが、例えば第２覆い部２０ｂの中心が周縁部よりも反負荷側に突出するようなドーム形状をなしていてもよい。   FIG. 2A is a side view of the umbrella member 20, and FIG. 2B is a plan view of the umbrella member 20. The umbrella member 20 includes a first cover portion 20a that covers the radially outer side of the tubular portion 18a of the fan cover 18, and a second cover portion 20b that closes the opposite end portion of the first cover portion 20a. The The umbrella member 20 shown in FIG. 2 has a generally cylindrical shape, but may have a dome shape in which the center of the second cover portion 20b protrudes more on the side opposite to the load than the peripheral portion, for example.

傘部材２０の第２覆い部２０ｂには穴が形成されておらず、ファンカバー１８の蓋部１８ｂの反負荷側を完全に覆う。また、傘部材２０の第１覆い部２０ａの下端すなわち負荷側端部は、少なくともファンカバー１８の蓋部１８ｂよりも下方に延びるように、ファンカバー１８に対して固定される。換言すれば、ファンカバー１８の筒状部１８ａと傘部材２０の第１覆い部２０ａが径方向から見て重なっている。こうすることによって、例えば風雨が強いときであっても、モータ１０の側方から吹き込む雨が傘部材２０の第１覆い部２０ａによって弾かれるため、ファンカバー１８の吸気口１８ｃを通してファンカバー１８内に水が浸入するのを防止することができる。   No hole is formed in the second cover portion 20b of the umbrella member 20, and the anti-load side of the lid portion 18b of the fan cover 18 is completely covered. Further, the lower end of the first cover portion 20 a of the umbrella member 20, that is, the load side end portion is fixed to the fan cover 18 so as to extend at least below the lid portion 18 b of the fan cover 18. In other words, the cylindrical portion 18a of the fan cover 18 and the first cover portion 20a of the umbrella member 20 overlap each other when viewed from the radial direction. In this way, even when the wind and rain are strong, for example, the rain blown from the side of the motor 10 is repelled by the first cover portion 20a of the umbrella member 20, so that the inside of the fan cover 18 passes through the air inlet 18c of the fan cover 18. It is possible to prevent water from entering the water.

また、傘部材２０の第１覆い部２０ａはファンカバー１８の筒状部１８ａよりも大きな直径を有しているので、ファンカバー１８の筒状部１８ａと傘部材２０の第１覆い部２０ａとの間に周方向に延びる環状の隙間が生じる。この隙間を通して、ファンカバー１８の吸気口１８ｃへの空気の流通を確保できるようになっている（図４、６を参照）。   Further, since the first cover portion 20a of the umbrella member 20 has a larger diameter than the tubular portion 18a of the fan cover 18, the tubular portion 18a of the fan cover 18 and the first cover portion 20a of the umbrella member 20 An annular gap extending in the circumferential direction is generated between the two. Through this gap, it is possible to ensure the air flow to the intake port 18c of the fan cover 18 (see FIGS. 4 and 6).

傘部材２０は、ファンカバー１８に対して固定部材を用いて固定される。図３（ａ）は、本発明の一実施形態に係る固定部材５０の側面図であり、図３（ｂ）は固定部材５０の平面図である。   The umbrella member 20 is fixed to the fan cover 18 using a fixing member. FIG. 3A is a side view of the fixing member 50 according to the embodiment of the present invention, and FIG. 3B is a plan view of the fixing member 50.

固定部材５０は、板を折り曲げて形成される部材である。固定部材５０は、第１板部５１と、第２板部５２と、第１板部５１と第２板部５２とを接続する第３板部５３と、で構成される。第２板部５２には貫通穴５２ａが形成され、その一方の側にナット５４が溶接されている。第３板部５３には、面積の大きい対向する２つの面５３Ａと、２つの面５３Ａの側端部を接続する（面５３Ａよりも）面積の小さい対向する２つの面５３Ｂと、が存在する。２つの面５３Ａの間の距離の方向を、第３板部５３の厚さ方向と呼ぶ。   The fixing member 50 is a member formed by bending a plate. The fixing member 50 includes a first plate portion 51, a second plate portion 52, and a third plate portion 53 that connects the first plate portion 51 and the second plate portion 52. A through hole 52a is formed in the second plate portion 52, and a nut 54 is welded to one side thereof. The third plate portion 53 includes two opposing surfaces 53A having a large area and two opposing surfaces 53B having a small area (which is smaller than the surface 53A) connecting the side end portions of the two surfaces 53A. . The direction of the distance between the two surfaces 53A is referred to as the thickness direction of the third plate portion 53.

図４は、図３に示した固定部材５０を用いて傘部材２０をファンカバー１８に固定する様子を示す、モータ１０の後部の縦方向断面図である。この例では、固定部材５０の第３板部５３の厚さ方向が鉛直方向を向くように（言い換えると、第３板部５３の面積の大きい面５３Ａ（の法線方向）が鉛直方向を向くように、または、第３板部５３の面積の大きい面５３Ａがモータの中心軸を法線とする平面の一部となるように）、固定部材５０が配置される。固定部材５０は、例えばファンカバー１８の周方向で等間隔に四つ使用される。   FIG. 4 is a longitudinal sectional view of the rear portion of the motor 10 showing how the umbrella member 20 is fixed to the fan cover 18 using the fixing member 50 shown in FIG. 3. In this example, the thickness direction of the third plate portion 53 of the fixing member 50 faces the vertical direction (in other words, the surface 53A having a large area (the normal direction thereof) of the third plate portion 53 faces the vertical direction. In this way, the fixing member 50 is arranged so that the surface 53A having a large area of the third plate portion 53 becomes a part of a plane whose normal is the central axis of the motor. For example, four fixing members 50 are used at equal intervals in the circumferential direction of the fan cover 18.

固定部材５０の第１板部５１は、ファンカバー１８の筒状部１８ａの外周に溶接で固定される。固定部材５０の第２板部５２は、傘部材２０の第１覆い部２０ａに形成された貫通穴にボルト５６を挿通し、このボルト５６をナット５４に締め付けることによって、第１覆い部２０ａの内周に固定される。   The first plate portion 51 of the fixing member 50 is fixed to the outer periphery of the tubular portion 18a of the fan cover 18 by welding. The second plate portion 52 of the fixing member 50 is inserted into a through hole formed in the first cover portion 20 a of the umbrella member 20, and the bolt 56 is tightened to the nut 54 to tighten the first cover portion 20 a. Fixed to the inner circumference.

固定部材５０の第１板部５１と第２板部５２は平板であってもよいし、ファンカバー１８または傘部材２０の円周形状に沿うようにわずかに曲げられていてもよい。   The first plate portion 51 and the second plate portion 52 of the fixing member 50 may be flat plates, or may be slightly bent along the circumferential shape of the fan cover 18 or the umbrella member 20.

図４に示すように、第３板部５３の厚さ方向が鉛直方向を向くように固定部材５０を取り付けると、ファンカバー１８の筒状部１８ａと傘部材２０の第１覆い部２０ａとの間の隙間を流れる空気が第３板部５３の厚さ方向に衝突するかたちになる。そのため、吸気口１８ｃに向かう空気の流れが阻害されるおそれがある。また、モータ１０の運転時、モータの振動によって、傘部材２０の重さによる曲げモーメントが固定部材５０に繰り返し作用し、第３板部５３と第１板部５１または第２板部５２との折り曲げ部分の強度が不足しがちになる。   As shown in FIG. 4, when the fixing member 50 is attached so that the thickness direction of the third plate portion 53 faces the vertical direction, the cylindrical portion 18 a of the fan cover 18 and the first cover portion 20 a of the umbrella member 20 The air flowing through the gap therebetween collides in the thickness direction of the third plate portion 53. Therefore, the air flow toward the intake port 18c may be hindered. Further, during the operation of the motor 10, the bending moment due to the weight of the umbrella member 20 repeatedly acts on the fixing member 50 due to the vibration of the motor 10, and the third plate portion 53 and the first plate portion 51 or the second plate portion 52. The strength of the bent part tends to be insufficient.

図５（ａ）は、上記の欠点を解消するために考案された、本発明の一実施形態に係る固定部材３０の側面図であり、図５（ｂ）は固定部材３０の平面図である。   FIG. 5A is a side view of the fixing member 30 according to an embodiment of the present invention devised to solve the above-described drawbacks, and FIG. 5B is a plan view of the fixing member 30. .

固定部材５０と同様に、固定部材３０は、第１板部３１と、第２板部３２と、第１板部３１と第２板部３２とを接続する第３板部３３と、で構成される。第２板部３２には貫通穴３２ａが形成され、その一方の側にナット３４が溶接されている。第３板部３３には、面積の大きい対向する２つの面３３Ａと、２つの面３３Ａの側端部を接続する（面３３Ａよりも）面積の小さい対向する２つの面３３Ｂと、が存在する。２つの面３３Ａの間の距離の方向を、第３板部３３の厚さ方向と呼ぶ。   Similar to the fixing member 50, the fixing member 30 includes a first plate portion 31, a second plate portion 32, and a third plate portion 33 that connects the first plate portion 31 and the second plate portion 32. Is done. A through hole 32a is formed in the second plate portion 32, and a nut 34 is welded to one side thereof. The third plate portion 33 has two opposing surfaces 33A having a large area and two opposing surfaces 33B having a small area (which is smaller than the surface 33A) connecting the side end portions of the two surfaces 33A. . The direction of the distance between the two surfaces 33 </ b> A is referred to as the thickness direction of the third plate portion 33.

図６は、図５に示す固定部材３０を用いて傘部材２０をファンカバー１８に固定する様子を示す、モータ１０の後部の縦方向断面図である。この例では、固定部材３０の第３板部３３の厚さ方向がファンカバー１８の周方向を向くように（言い換えると、第３板部３３の面積の大きい面３３Ａがファンカバー１８の周方向を向くように、あるいは、第３板部３３の面３３Ａの法線がファンカバー１８の周方向を向くように、あるいは、第３板部３３の面３３Ａがモータ１０の中心軸を含む平面の一部をなすように）、固定部材３０が配置される。固定部材３０は、例えばファンカバー１８の周方向で等間隔に四つ使用される。   FIG. 6 is a longitudinal cross-sectional view of the rear portion of the motor 10 showing how the umbrella member 20 is fixed to the fan cover 18 using the fixing member 30 shown in FIG. In this example, the thickness direction of the third plate portion 33 of the fixing member 30 faces the circumferential direction of the fan cover 18 (in other words, the surface 33A having a large area of the third plate portion 33 is the circumferential direction of the fan cover 18). So that the normal line of the surface 33A of the third plate portion 33 faces the circumferential direction of the fan cover 18, or the surface 33A of the third plate portion 33 is a plane including the central axis of the motor 10. The fixing member 30 is arranged so as to form a part. For example, four fixing members 30 are used at equal intervals in the circumferential direction of the fan cover 18.

固定部材３０の第１板部３１は、ファンカバー１８の筒状部１８ａの外周に溶接で固定される。固定部材３０の第２板部３２は、傘部材２０の第１覆い部２０ａに形成された貫通穴にボルト３６を挿通し、このボルト３６をナット３４に締め付けることによって、第１覆い部２０ａの内周に固定される。固定部材３０と傘部材２０とをボルトで固定することで、傘部材２０のみをモータ１０から容易に取り外すことができる。   The first plate portion 31 of the fixing member 30 is fixed to the outer periphery of the tubular portion 18a of the fan cover 18 by welding. The second plate portion 32 of the fixing member 30 is inserted into a through hole formed in the first cover portion 20a of the umbrella member 20, and the bolt 36 is fastened to the nut 34, whereby the first cover portion 20a. Fixed to the inner circumference. Only the umbrella member 20 can be easily detached from the motor 10 by fixing the fixing member 30 and the umbrella member 20 with bolts.

図６に示すように、第３板部３３の厚さ方向がファンカバー１８の周方向を向くように固定部材３０を取り付けることで、ファンカバー１８の筒状部１８ａと傘部材２０の第１覆い部２０ａとの間の隙間を通る空気の流れの阻害を抑制することができる。また、傘部材２０の重さによる曲げモーメントが固定部材３０の板幅方向に作用するので、折り曲げ部の負担が低減される。   As shown in FIG. 6, by attaching the fixing member 30 so that the thickness direction of the third plate portion 33 faces the circumferential direction of the fan cover 18, the cylindrical portion 18 a of the fan cover 18 and the first of the umbrella member 20. The obstruction of the air flow passing through the gap between the cover portion 20a can be suppressed. In addition, since the bending moment due to the weight of the umbrella member 20 acts in the plate width direction of the fixing member 30, the burden on the bent portion is reduced.

また、図４の固定部材５０とは異なり、図６の例では、固定部材３０の全体が傘部材２０の内側に収められる。これにより、固定部材３０が雨に曝されることがないので、固定部材３０の腐食を防止することができ、また見映えも向上する。   Further, unlike the fixing member 50 of FIG. 4, the entire fixing member 30 is accommodated inside the umbrella member 20 in the example of FIG. 6. Thereby, since the fixing member 30 is not exposed to rain, corrosion of the fixing member 30 can be prevented, and the appearance is also improved.

なお、固定部材３０の第１板部３１と第２板部３２は平板であってもよいし、ファンカバー１８または傘部材２０の円周形状に沿うようにわずかに曲げられていてもよい。   The first plate portion 31 and the second plate portion 32 of the fixing member 30 may be flat plates, or may be slightly bent along the circumferential shape of the fan cover 18 or the umbrella member 20.

図７（ａ）は、変形例に係る固定部材４０の側面図であり、図７（ｂ）は固定部材４０の平面図である。この変形例では、固定部材４０は、第２板部４２の両端に接続される一対の第３板部４３、４５と、この一対の第３板部４３、４５のそれぞれに接続される一対の第１板部４１ａ、４１ｂと、を有している。第２板部４２には貫通穴４２ａが形成され、その一方の側にナット４４が溶接されている。第１板部４１ａと４１ｂは、ファンカバー１８の筒状部１８ａの円周形状に沿うように互いに角度が付けられている。第３板部４３、４５には、それぞれ面積の大きい対向する２つの面４３Ａ、４５Ａと、２つの面４３Ａ、４５Ａの側端部を接続する（面４３Ａ、４５Ａよりも）面積の小さい対向する２つの面４３Ｂ、４５Ｂと、が存在する。２つの面４３Ａの間の距離の方向を、第３板部４３の厚さ方向と呼び、２つの面４５Ａの間の距離の方向を、第３板部４５の厚さ方向と呼ぶ。   FIG. 7A is a side view of a fixing member 40 according to a modification, and FIG. 7B is a plan view of the fixing member 40. In this modification, the fixing member 40 includes a pair of third plate portions 43 and 45 connected to both ends of the second plate portion 42 and a pair of third plate portions 43 and 45 connected to each of the pair of third plate portions 43 and 45. First plate portions 41a and 41b. A through hole 42a is formed in the second plate portion 42, and a nut 44 is welded to one side thereof. The first plate portions 41 a and 41 b are angled with each other so as to follow the circumferential shape of the tubular portion 18 a of the fan cover 18. The third plate portions 43 and 45 are connected to two opposing surfaces 43A and 45A having a large area and side ends of the two surfaces 43A and 45A (less than the surfaces 43A and 45A) having a small area. There are two faces 43B, 45B. The direction of the distance between the two surfaces 43A is referred to as the thickness direction of the third plate portion 43, and the direction of the distance between the two surfaces 45A is referred to as the thickness direction of the third plate portion 45.

図８は、図７に示す固定部材４０を用いて傘部材２０をファンカバー１８に固定する様子を示す、モータ１０の横方向断面図である。図６に示した例と同様に、固定部材４０の第３板部４３、４５の厚さ方向がファンカバー１８の周方向を向くように（言い換えると、第３板部４３、４５の面積の大きい面４３Ａ、４５Ａがファンカバー１８の周方向を向くように、あるいは、第３板部４３、４５の面４３Ａ、４５Ａの法線がファンカバー１８の周方向を向くように、あるいは、第３板部４３、４５の面４３Ａ、４５Ａがモータ１０の中心軸を含む平面の一部をなすように）、固定部材４０が配置される。固定部材４０は、例えばファンカバー１８の周方向で等間隔に四つ使用される。   FIG. 8 is a lateral cross-sectional view of the motor 10 showing how the umbrella member 20 is fixed to the fan cover 18 using the fixing member 40 shown in FIG. Similar to the example shown in FIG. 6, the thickness direction of the third plate portions 43, 45 of the fixing member 40 faces the circumferential direction of the fan cover 18 (in other words, the area of the third plate portions 43, 45 is The large surfaces 43A and 45A face the circumferential direction of the fan cover 18, or the normal lines of the surfaces 43A and 45A of the third plate portions 43 and 45 face the circumferential direction of the fan cover 18, or the third The fixing member 40 is disposed so that the surfaces 43A and 45A of the plate portions 43 and 45 form a part of a plane including the central axis of the motor 10). For example, four fixing members 40 are used at equal intervals in the circumferential direction of the fan cover 18.

固定部材４０の第１板部４１ａ、４１ｂは、ファンカバー１８の筒状部１８ａの外周に溶接で固定される。固定部材４０の第２板部４２は、傘部材２０の第１覆い部２０ａに形成された貫通穴にボルト４６を挿通し、このボルト４６をナット４４に締め付けることによって、第１覆い部２０ａの内周に固定される。固定部材４０と傘部材２０とをボルトで固定するようにすることで、傘部材２０のみをモータ１０から容易に取り外すことができる。   The first plate portions 41a and 41b of the fixing member 40 are fixed to the outer periphery of the tubular portion 18a of the fan cover 18 by welding. The second plate portion 42 of the fixing member 40 is inserted into a through hole formed in the first cover portion 20 a of the umbrella member 20, and the bolt 46 is tightened to the nut 44 to tighten the first cover portion 20 a. Fixed to the inner circumference. By fixing the fixing member 40 and the umbrella member 20 with bolts, only the umbrella member 20 can be easily detached from the motor 10.

図６の固定部材３０と同様に、図８でも、固定部材４０の全体が傘部材２０の内側に収められる。これにより、固定部材４０が雨に曝されることがないので、固定部材４０の腐食を防止することができ、また見映えも向上する。   Similar to the fixing member 30 of FIG. 6, the entire fixing member 40 is also accommodated inside the umbrella member 20 in FIG. 8. Thereby, since the fixing member 40 is not exposed to rain, corrosion of the fixing member 40 can be prevented, and the appearance is also improved.

なお、固定部材４０の第１板部４１ａ、４１ｂを傘部材２０の第１覆い部２０ａの内周に、第２板部４２をファンカバー１８の筒状部１８ａの外周に固定してもよい。この場合、第２板部４２を溶接によりファンカバー１８に固定し、第１板部４１ａ、４１ｂはボルトにより傘部材２０に固定することが好ましい。   The first plate portions 41 a and 41 b of the fixing member 40 may be fixed to the inner periphery of the first cover portion 20 a of the umbrella member 20, and the second plate portion 42 may be fixed to the outer periphery of the tubular portion 18 a of the fan cover 18. . In this case, it is preferable that the second plate portion 42 is fixed to the fan cover 18 by welding, and the first plate portions 41a and 41b are fixed to the umbrella member 20 by bolts.

固定部材４０の第１板部４１ａ、４１ｂと第２板部４２は平板であってもよいし、ファンカバー１８または傘部材２０の円周形状に沿うようにわずかに曲げられていてもよい。   The first plate portions 41 a and 41 b and the second plate portion 42 of the fixing member 40 may be flat plates, or may be slightly bent along the circumferential shape of the fan cover 18 or the umbrella member 20.

以上、本発明のいくつかの実施形態について説明した。これらの実施の形態は例示であり、それらの各構成要素の組み合わせにいろいろな変形例が可能なこと、またそうした変形例も本発明の範囲にあることは当業者に理解されるところである。   In the above, several embodiments of the present invention have been described. It is to be understood by those skilled in the art that these embodiments are exemplifications, and that various modifications can be made to combinations of the respective components, and such modifications are within the scope of the present invention.

実施の形態では、モータが屋外に設置される場合について説明したが、本発明に係るモータは、屋内で上部から液体が降ってくるような環境に設置されてもよい。   In the embodiment, the case where the motor is installed outdoors has been described. However, the motor according to the present invention may be installed indoors in an environment where liquid falls from above.

１０ モータ、 １４ モータ軸、 １８ ファンカバー、 １８ａ 筒状部、 １８ｂ 蓋部、 ２０ 傘部材、 ２０ａ 第１覆い部、 ２０ｂ 第２覆い部、 ３０ 固定部材、 ３１ 第１板部、 ３２ 第２板部、 ３３ 第３板部、 ３６ ボルト、 ４０ 固定部材、 ４１ａ、４１ｂ 第１板部、 ４２ 第２板部、 ４３ａ、４３ｂ 第３板部、 ４６ ボルト。   DESCRIPTION OF SYMBOLS 10 Motor, 14 Motor shaft, 18 Fan cover, 18a Cylindrical part, 18b Cover part, 20 Umbrella member, 20a 1st cover part, 20b 2nd cover part, 30 Fixing member, 31 1st board part, 32 2nd board Portion, 33 third plate portion, 36 bolt, 40 fixing member, 41a, 41b first plate portion, 42 second plate portion, 43a, 43b third plate portion, 46 bolt.

Claims (5)

モータの反負荷側が負荷側よりも鉛直上側となるように配置されるモータであって、
モータ軸の反負荷側端部に設けられたファンと、該ファンを覆うファンカバーと、該ファンカバーを覆う傘部材と、を備え、
前記ファンカバーは、筒状部と、該筒状部の反負荷側端部を閉塞する蓋部と、を有し、該蓋部には吸気口が設けられ、
前記傘部材は、前記筒状部の径方向外側を覆う第１覆い部と、該第１覆い部の反負荷側端部を閉塞し前記蓋部の後方を覆う第２覆い部と、を有する
ことを特徴とするモータ。 A motor arranged such that the non-load side of the motor is vertically above the load side,
A fan provided at the opposite end of the motor shaft, a fan cover that covers the fan, and an umbrella member that covers the fan cover,
The fan cover has a cylindrical portion and a lid portion that closes an end portion on the opposite side of the cylindrical portion, and the lid portion is provided with an air inlet.
The umbrella member includes a first cover portion that covers a radially outer side of the cylindrical portion, and a second cover portion that closes a non-load side end portion of the first cover portion and covers the rear of the lid portion. A motor characterized by that. 前記傘部材を前記ファンカバーに固定する固定部材をさらに備え、
前記固定部材は板状の部材とされ、前記ファンカバーの筒状部外周に固定される第１板部と、前記傘部材の第１覆い部内周に固定される第２板部と、前記第１板部と前記第２板部とを接続する第３板部と、を有し、前記第３板部の厚さ方向が前記ファンカバーの周方向を向くように配置される
ことを特徴とする請求項１に記載のモータ。 A fixing member for fixing the umbrella member to the fan cover;
The fixing member is a plate-like member, a first plate portion fixed to the outer periphery of the tubular portion of the fan cover, a second plate portion fixed to the inner periphery of the first cover portion of the umbrella member, and the first A third plate portion connecting the first plate portion and the second plate portion, and the third plate portion is disposed so that a thickness direction of the third plate portion faces a circumferential direction of the fan cover. The motor according to claim 1. 前記第２板部の周方向両端に接続される一対の第３板部を有し、該一対の第３板部のそれぞれに接続される一対の第１板部を有することを特徴とする請求項２に記載のモータ。   It has a pair of 3rd board part connected to the circumferential direction both ends of the said 2nd board part, and has a pair of 1st board part connected to each of this pair of 3rd board part, It is characterized by the above-mentioned. Item 3. The motor according to Item 2. 前記第１板部は溶接によって前記ファンカバーに固定され、前記第２板部はボルトによって前記傘部材に固定されることを特徴とする請求項２または３に記載のモータ。   The motor according to claim 2 or 3, wherein the first plate portion is fixed to the fan cover by welding, and the second plate portion is fixed to the umbrella member by a bolt. 前記固定部材の全体が前記傘部材の内側に収まっていることを特徴とする請求項２ないし４のいずれかに記載のモータ。   The motor according to any one of claims 2 to 4, wherein the whole fixing member is accommodated inside the umbrella member.
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