JP2018164373A5 - - Google Patents

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JP2018164373A5
JP2018164373A5 JP2017060960A JP2017060960A JP2018164373A5 JP 2018164373 A5 JP2018164373 A5 JP 2018164373A5 JP 2017060960 A JP2017060960 A JP 2017060960A JP 2017060960 A JP2017060960 A JP 2017060960A JP 2018164373 A5 JP2018164373 A5 JP 2018164373A5
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Prior art keywords
exhaust hole
cooling
air passage
stator
forming body
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JP2017060960A
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Japanese (ja)
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JP6579522B2 (en
JP2018164373A (en
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Priority claimed from JP2017060960A external-priority patent/JP6579522B2/en
Priority to CN201711239766.5A priority patent/CN108667198B/en
Publication of JP2018164373A publication Critical patent/JP2018164373A/en
Publication of JP2018164373A5 publication Critical patent/JP2018164373A5/ja
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本発明の一実施形態であるコアレス・ブラシレスモータを表す模式図である。It is a schematic diagram showing the coreless brushless motor which is one Embodiment of this invention. 冷却効果を評価するための測定実験に用いる被測定コアレス・ブラシレスモータCPH50の断面図である。 It is sectional drawing of the to- be-measured coreless brushless motor CPH50 used for the measurement experiment for evaluating a cooling effect. 図2に示されるコアレス・ブラシレスモータCPH50のアウターヨークに嵌装固定される冷却補助具の正面図および上面図である。FIG. 3 is a front view and a top view of a cooling aid fitted and fixed to an outer yoke of the coreless brushless motor CPH50 shown in FIG. 図2および3に示されるコアレス・ブラシレスモータCPH50に基づく冷却効果を評価するための測定実験の概要図である。FIG. 4 is a schematic diagram of a measurement experiment for evaluating a cooling effect based on the coreless brushless motor CPH50 shown in FIGS. CPH50を48Vで駆動した場合の冷却効果を評価するための測定実験の結果のグラフである。It is a graph of the result of the measurement experiment for evaluating the cooling effect at the time of driving CPH50 by 48V. 図5の測定実験の測定データ表である。6 is a measurement data table of the measurement experiment of FIG. CPH50を24Vで駆動した場合の冷却効果を評価するための他の測定実験の結果のグラフである。It is a graph of the result of the other measurement experiment for evaluating the cooling effect at the time of driving CPH50 by 24V. 図7の他の測定実験の測定データ表である。8 is a measurement data table of another measurement experiment of FIG. CPH50を36Vで駆動した場合の他のもう一つの冷却効果を評価するための他の測定実験の結果のグラフである。It is a graph of the result of the other measurement experiment for evaluating another cooling effect at the time of driving CPH50 by 36V. 図9の他のもう一つの測定実験の測定データ表である。10 is a measurement data table of another measurement experiment in FIG. 9. (参考)図3の冷却補助具と異なる形状を有する第2冷却補助具の正面図および上面図である。(Reference) It is the front view and top view of the 2nd cooling assistance tool which have a shape different from the cooling assistance tool of FIG. (参考)図11の第2冷却補助具を用いた被測定コアレス・ブラシレスモータCPH50に基づく冷却効果を評価するための(48V、24V、36Vによる)測定実験の測定データ表である。(Reference) It is a measurement data table of the measurement experiment (by 48V, 24V, 36V) for evaluating the cooling effect based on the coreless brushless motor CPH50 to be measured using the second cooling auxiliary tool of FIG.

さらに詳細には、エアギャップに挿入配置されている円筒コイルは、その内周面および外周面を回転子3のアウターヨークの内周面およびインナーヨークの外周面に接しないように、かつ、その他方の端面を、回転子3を構成するカップ型マウントの底部に接しないように、エアギャップ内に僅かの隙間を空け浮かせた状態になる。それは、円筒コイルがこのように配置されるように固定子2および回転子3を駆動シャフトに配置する構造を有するものである。 More specifically, the cylindrical coil inserted and arranged in the air gap has its inner peripheral surface and outer peripheral surface not in contact with the inner peripheral surface of the outer yoke of the rotor 3 and the outer peripheral surface of the inner yoke. In this state, a slight gap is left in the air gap so that the other end face does not come into contact with the bottom of the cup- type mount constituting the rotor 3. It has a structure in which the stator 2 and the rotor 3 are arranged on the drive shaft so that the cylindrical coil is arranged in this way.

回転子3を構成するカップ型マウントの底部に複数の吸気孔が設けられている本発明のコアレス・ブラシレスモータ10を作動させると、回転子3の回転により発生する回転子3の周囲の圧力差によって、吸気孔から第2空隙に外気を引き込むように作用する。また第3空隙は、固定子2の内面によって閉鎖された円筒コイルの外周面にエアギャップと外気との間に形成される。そうなると、円筒コイルの内周面と固定子2の内面とで形成される閉鎖空間となる第2空隙は、エアギャップに連通し、回転子3の内面を経て円筒コイルの外周面と固定子2の内面とアウターヨークの開放端面とで形成される開放空間となる第3空隙とのみ連通させることができる。 When the coreless brushless motor 10 of the present invention in which a plurality of air intake holes are provided in the bottom of the cup- shaped mount constituting the rotor 3 is operated, the pressure difference around the rotor 3 generated by the rotation of the rotor 3 Therefore, the outside air is drawn into the second gap from the intake hole. The third gap is formed between the air gap and the outside air on the outer peripheral surface of the cylindrical coil closed by the inner surface of the stator 2. Then, the 2nd space | gap used as the closed space formed by the internal peripheral surface of a cylindrical coil and the inner surface of the stator 2 is connected to an air gap, and the outer peripheral surface of a cylindrical coil and the stator 2 pass through the inner surface of the rotor 3. It is possible to communicate only with the third gap serving as an open space formed by the inner surface of the outer yoke and the open end surface of the outer yoke.

こうした性能低下を防ぐための技術的手段の一つがアウターヨーク600の底部620にエアギャップ40に通じるように穿設した排気孔660によって冷却機能を付加することである。それが[2]比較例Bの場合であり、図5のBラインで表される。具体的には、[2]比較例Bの被測定CPH50を構成する円筒コイル200の温度が飽和温度117℃のときの測定値である。図5のBラインは、図5のAラインに比べ回転全域で負荷トルクが増大し、排気孔660が被測定CPH50の正常運転領域を拡大させたことを示し、排気孔660のない被測定CPH50より冷却効果が高いことがこれで確認される。 One of the technical means for preventing such performance degradation is to add a cooling function by an exhaust hole 660 formed in the bottom 620 of the outer yoke 600 so as to communicate with the air gap 40. This is the case of [2] Comparative Example B and is represented by the B line in FIG. Specifically, [2] is a measured value when the temperature of the cylindrical coil 200 constituting the measured CPH 50 of Comparative Example B is a saturation temperature of 117 ° C. The B line in FIG. 5 indicates that the load torque is increased in the entire rotation range compared to the A line in FIG. 5, and that the exhaust hole 660 has expanded the normal operation region of the measured CPH 50. This confirms that the cooling effect is higher.

Claims (3)

前記冷却補助具を構成する円環に前記外側円筒空路形成体の前記排気孔に対応する放射状の前記連通口が形成され、前記連通口は、少なくとも前記外側円筒空路形成体の前記排気孔の内径および長さを有することを特徴とする請求項1または2のいずれかに記載の冷却補助具。 A radial communication port corresponding to the exhaust hole of the outer cylindrical air passage forming body is formed in an annular ring constituting the cooling aid, and the communication port has at least an inner diameter of the exhaust hole of the outer cylindrical air passage forming body. The cooling aid according to claim 1, wherein the cooling aid has a length and a length . 前記冷却補助具は樹脂製リングからなり、前記無鉄心の円筒コイルを備えた固定子を含むブラシレス回転電気機械を構成する前記外側円筒空路形成体に着脱自在に嵌装固定されることを特徴とする請求項4に記載の無鉄心の円筒コイルを備えた固定子を含むブラシレス回転電気機械。 The cooling aid is made of a resin ring, and is detachably fitted and fixed to the outer cylindrical air passage forming body constituting a brushless rotary electric machine including a stator having the ironless cylindrical coil. A brushless rotating electrical machine including a stator having a coreless cylindrical coil according to claim 4. 前記外側円筒空路形成体の前記排気孔に対応する前記冷却補助具の前記連通口は、少なくとも前記排気孔の内径および長さを有することを特徴とする請求項4または5のいずれかに記載の無鉄心の円筒コイルを備えた固定子を含むブラシレス回転電気機械。 6. The communication port of the cooling auxiliary tool corresponding to the exhaust hole of the outer cylindrical air passage forming body has at least an inner diameter and a length of the exhaust hole. A brushless rotating electrical machine including a stator with a coreless cylindrical coil.
JP2017060960A 2017-03-27 2017-03-27 Brushless rotating electrical machine including a stator having a coreless cylindrical coil and a brushless rotating electrical machine including a stator having a coreless cylindrical coil mounted with the cooling assisting tool Active JP6579522B2 (en)

Priority Applications (2)

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JP2017060960A JP6579522B2 (en) 2017-03-27 2017-03-27 Brushless rotating electrical machine including a stator having a coreless cylindrical coil and a brushless rotating electrical machine including a stator having a coreless cylindrical coil mounted with the cooling assisting tool
CN201711239766.5A CN108667198B (en) 2017-03-27 2017-11-30 Cooling aid and coreless brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017060960A JP6579522B2 (en) 2017-03-27 2017-03-27 Brushless rotating electrical machine including a stator having a coreless cylindrical coil and a brushless rotating electrical machine including a stator having a coreless cylindrical coil mounted with the cooling assisting tool

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JP2018164373A JP2018164373A (en) 2018-10-18
JP2018164373A5 true JP2018164373A5 (en) 2018-11-29
JP6579522B2 JP6579522B2 (en) 2019-09-25

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JPH05344680A (en) * 1992-06-05 1993-12-24 Toshiba Toransupooto Eng Kk Outer rotor motor for vehicle
JP3494056B2 (en) * 1999-01-25 2004-02-03 国産電機株式会社 Outer rotor type magnet generator
JP2000328956A (en) * 1999-05-20 2000-11-28 Honda Motor Co Ltd Engine power generator
JP2001339908A (en) * 2000-05-30 2001-12-07 Honda Motor Co Ltd Outer rotor motor generator
JP3548143B2 (en) * 2001-09-06 2004-07-28 三洋電機株式会社 Drum type washing machine
JP3671398B2 (en) * 2002-05-16 2005-07-13 三菱電機株式会社 Magnet generator
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JP6005886B1 (en) * 2016-03-03 2016-10-12 株式会社エムリンク Iron-free rotating electric machine including a stator having a cylindrical coil and its cooling method
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