WO2018123576A1 - Motor - Google Patents

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Publication number
WO2018123576A1
WO2018123576A1 PCT/JP2017/044640 JP2017044640W WO2018123576A1 WO 2018123576 A1 WO2018123576 A1 WO 2018123576A1 JP 2017044640 W JP2017044640 W JP 2017044640W WO 2018123576 A1 WO2018123576 A1 WO 2018123576A1
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WIPO (PCT)
Prior art keywords
resin
stator
motor
motor according
rotor
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PCT/JP2017/044640
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French (fr)
Japanese (ja)
Inventor
康一 斉藤
山縣　芳和
Original Assignee
パナソニックＩｐマネジメント株式会社
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Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to JP2018559011A priority Critical patent/JPWO2018123576A1/en
Priority to CN201780078713.1A priority patent/CN110089008A/en
Publication of WO2018123576A1 publication Critical patent/WO2018123576A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/30—Windings characterised by the insulating material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/44—Protection against moisture or chemical attack; Windings specially adapted for operation in liquid or gas

Definitions

  • the present invention relates to a motor used in an air conditioner and the like, and more particularly, to a fan motor designed to improve safety.
  • fan motors used in air conditioners and the like have temperature-sensitive elements attached to the windings wound around the stator coil as a safety measure in the event of an abnormal condition. There is something.
  • the temperature to be detected is set in advance for the temperature sensitive element attached to the winding.
  • the temperature of the winding continues to rise.
  • a temperature sensitive element attached to the winding detects that the temperature of the winding has reached a predetermined temperature.
  • the controller that drives the fan motor stops the current flowing through the winding, or reduces the current flowing through the winding.
  • the temperature rise of the winding is suppressed.
  • the motor of the present invention includes a stator, a rotor, a bearing, a mold part, and a bracket.
  • the stator has a stator core extending in the axial direction, a winding wound around the stator core, and an insulating portion positioned between the stator core and the winding.
  • the rotor is located facing the stator via a gap.
  • the rotor includes a rotating shaft having an axial center as a rotation center, and a rotating body that extends in the axial direction and is attached to the rotating shaft.
  • the bearing supports the rotating shaft so as to be rotatable.
  • the mold part covers the opposite side of the stator where the stator faces the rotor with a resin mold.
  • the bracket is located at the end in the axial direction and is attached to the mold part while holding the bearing.
  • the insulating part is made of flame retardant or heat resistant resin.
  • the insulating part is formed of a resin having a flash point of 330 ° C. or higher.
  • the insulating part is formed of a resin having an ignition temperature of 420 ° C. or higher.
  • an insulating part is formed with resin whose melting temperature is 250 degreeC or more.
  • the insulating portion is formed using a resin material having high heat resistance and flame retardancy, it is possible to prevent fire and smoke from leaking outside the motor, and the safety of the motor is improved. improves.
  • FIG. 1 is a half sectional view of a motor according to an embodiment of the present invention as seen from the side.
  • the motor according to the embodiment of the present invention has an insulating portion formed of a resin material having high heat resistance and flame retardancy, thereby improving the safety of the motor.
  • the conventional method including the above-described technique has the following points to be improved. That is, when a failure occurs in the temperature sensitive element, the temperature of the winding cannot be detected. Therefore, even if the motor is in an abnormal state, a signal notifying that the winding temperature has reached the predetermined temperature is not transmitted from the temperature sensitive element to the control unit that drives the fan motor. Thus, the winding temperature continues to rise. As a result, the conventional motor cannot be safely stopped. In the worst case, the conventional motor may lead to ignition.
  • FIG. 1 is a half sectional view of a motor according to an embodiment of the present invention as seen from the side.
  • the motor in the present embodiment will be described with reference to FIG.
  • the following description demonstrates and demonstrates the fan motor used for an air conditioner.
  • the motor 100 in the present embodiment includes a stator 10, a rotor 20, a bearing 30, a mold part 40, and a bracket 50.
  • the stator 10 includes a stator core 11 that extends in the direction of the axis 21 a, a winding 12 that is wound around the stator core 11, and an insulating portion 13 that is positioned between the stator core 11 and the winding 12.
  • the rotor 20 is located facing the stator 10 through a gap.
  • the rotor 20 includes a rotating shaft 21 having the shaft center 21 a as a rotation center, and a rotating body 22 that extends in the direction of the shaft center 21 a and is attached to the rotating shaft 21.
  • the pair of bearings 30 (30a, 30b) rotatably supports the rotary shaft 21.
  • the mold part 40 covers the opposite side of the stator 10 where the stator 10 faces the rotor 20 with a resin mold 41.
  • the bracket 50 is located at the end of the motor 100 in the direction of the axis 21a, and is attached to the mold part 40 while holding the bearing 30a.
  • the insulating part 13 is an insulating member, and is formed of a resin having a flash point of 330 ° C. or higher. More preferably, the resin forming the insulating portion 13 should have a flash point of 350 ° C. or higher.
  • the insulating portion 13 used in the motor 100 in the present embodiment is formed of a resin having an ignition temperature of 420 ° C. or higher. More preferably, the resin forming the insulating portion 13 should have an ignition temperature of 480 ° C. or higher.
  • the insulating portion 13 used in the motor 100 in the present embodiment is formed of a resin having a melting temperature of 250 ° C. or higher. More preferably, the resin forming the insulating portion 13 should have a melting temperature of 280 ° C. or higher.
  • the resin forming the insulating portion 13 has a non-combustible decomposition gas.
  • the stator core 11 can be composed of a substantially annular yoke and teeth projecting from the inner peripheral surface of the yoke toward the axis 21a.
  • a winding 12 is wound around the tooth via an insulating portion 13.
  • a resin mold 41 is molded on the outer peripheral side of the stator core 11 around which the winding 12 is wound, and a mold portion 40 is formed.
  • a rotor 20 is attached to the inner peripheral side of the stator core 11 via a gap. The rotor 20 is rotatably held by the bearing 30.
  • a bracket 50 is attached to the stator 10.
  • the resin material forming the insulating portion 13 is a liquid crystal polymer (also referred to as Liquid Crystal Polymer or LCP resin), polyphenylene sulfide (also referred to as Poly Phenylylene Sulfide or PPS resin), or polyphthalamide (Polyphthalamide or PPA resin). And an unsaturated polyester (Unsaturated Polyester), polyether ether ketone (PolyEther Ether Ketone, also referred to as PEEK resin), and phenol (also referred to as Phenolic formaldehyde, PF resin). .
  • BMC Molding Compound
  • BMC Molding Compound
  • the resin mold 41 is formed of a resin mainly composed of unsaturated polyester, and only aluminum hydroxide can be used as the powder filler.
  • the resin mold 41 can use BMC as a resin mainly composed of unsaturated polyester.
  • This configuration improves the heat resistance of the insulating portion 13. Therefore, according to the present embodiment, even if an abnormal current continues to flow through the winding 12 and the temperature of the winding 12 reaches a high temperature, the insulating portion 13 melts and generates flammable gas. There is no. Therefore, since the flammable gas is not filled in the motor 100, the gas is ignited for some reason and the motor does not ignite. As a result, the safety of the motor in the present embodiment is improved.
  • an inner rotor type motor is used as the motor.
  • the present invention can also be applied to an outer rotor type motor.
  • the motor of the present invention is also useful for a fan motor used for a refrigerator or the like.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The motor according to the present invention is provided with a stator, a rotor, a bearing, a molding portion, and a bracket. The stator has a stator core extending in the shaft center direction, a winding wound around the stator core, and an insulation portion positioned between the stator core and the winding. The rotor is positioned facing the stator with a space interposed therebetween. The rotor has a rotating shaft rotating about the shaft center and a rotating body extending in the shaft center direction and attached to the rotating shaft. The insulation portion is formed of a resin having a flash point of 330°C or more or is formed of a resin having an ignition temperature of 420°C or more. Alternatively, the insulation portion is formed of a resin having a melting temperature of 250°C or more.

Description

モータmotor
　本発明は、空気調和機などに用いられるモータに関し、特に、安全性の向上を図ったファンモータに関する。 The present invention relates to a motor used in an air conditioner and the like, and more particularly, to a fan motor designed to improve safety.
　従来、空気調和機などに用いられるファンモータ（以下、単に「モータ」ともいう）には、異常状態となった場合の安全対策として、ステータコイルに巻き回される巻線に温度感応素子を取付けたものがある。巻線に取付けられた温度感応素子は、予め検出すべき温度が設定されている。 Conventionally, fan motors (hereinafter also simply referred to as “motors”) used in air conditioners and the like have temperature-sensitive elements attached to the windings wound around the stator coil as a safety measure in the event of an abnormal condition. There is something. The temperature to be detected is set in advance for the temperature sensitive element attached to the winding.
　本構成とすれば、例えば、巻線に想定外の電流が流れた場合、巻線の温度が上昇し続け、モータが発火に至ることを未然に防ぐことができる。 If this configuration is used, for example, when an unexpected current flows through the winding, it is possible to prevent the temperature of the winding from continuing to rise and the motor from firing.
　具体的には、巻線に電流が流れ続けた場合、巻線の温度は上昇し続ける。巻線の温度が所定の値まで上昇したとき、巻線に取付けられた温度感応素子は、巻線の温度が所定温度に達したことを検出する。温度感応素子が、巻線の温度が所定温度に達したことを検出した場合、ファンモータを駆動する制御部は、巻線に流す電流を停止する、あるいは、巻線に流す電流を減少するなどして巻線の温度上昇を抑制する。 Specifically, when the current continues to flow through the winding, the temperature of the winding continues to rise. When the temperature of the winding rises to a predetermined value, a temperature sensitive element attached to the winding detects that the temperature of the winding has reached a predetermined temperature. When the temperature sensitive element detects that the temperature of the winding has reached a predetermined temperature, the controller that drives the fan motor stops the current flowing through the winding, or reduces the current flowing through the winding. Thus, the temperature rise of the winding is suppressed.
　よって、モータが異常な状態になったとしても、モータが発火に至るような事故を未然に防ぐことができる。このようなモータの発火を未然に防ぐための技術が開示されている（例えば、特許文献１参照）。 Therefore, even if the motor becomes abnormal, it is possible to prevent an accident that may cause the motor to ignite. A technique for preventing such ignition of the motor is disclosed (for example, see Patent Document 1).
特開２００７－４９７８３号公報JP 2007-49783 A
　本発明のモータは、ステータと、ロータと、軸受と、モールド部と、ブラケットと、を備える。 The motor of the present invention includes a stator, a rotor, a bearing, a mold part, and a bracket.
　ステータは、軸心方向に延伸したステータコアと、ステータコアに巻き回される巻線と、ステータコアと巻線との間に位置する絶縁部と、を有する。 The stator has a stator core extending in the axial direction, a winding wound around the stator core, and an insulating portion positioned between the stator core and the winding.
　ロータは、ステータと空隙を介して向い合って位置する。ロータは、軸心を回転中心とする回転軸と、軸心方向に延伸するとともに、回転軸に取付けられる回転体と、を有する。 The rotor is located facing the stator via a gap. The rotor includes a rotating shaft having an axial center as a rotation center, and a rotating body that extends in the axial direction and is attached to the rotating shaft.
　軸受は、回転軸を回動自在に支持する。 The bearing supports the rotating shaft so as to be rotatable.
　モールド部は、ステータにおいて、ステータがロータと向い合う反対側を樹脂モールドで覆う。 The mold part covers the opposite side of the stator where the stator faces the rotor with a resin mold.
　ブラケットは、軸心方向における端部に位置するとともに、軸受を保持してモールド部に取付けられる。 The bracket is located at the end in the axial direction and is attached to the mold part while holding the bearing.
　そして、絶縁部を難燃性または耐熱性の樹脂で形成している。 And the insulating part is made of flame retardant or heat resistant resin.
　特に、絶縁部は、引火点が３３０℃以上の樹脂で形成される。 In particular, the insulating part is formed of a resin having a flash point of 330 ° C. or higher.
　または、絶縁部は、発火温度が４２０℃以上の樹脂で形成される。あるいは、絶縁部は、溶融温度が２５０℃以上の樹脂で形成される。 Alternatively, the insulating part is formed of a resin having an ignition temperature of 420 ° C. or higher. Or an insulating part is formed with resin whose melting temperature is 250 degreeC or more.
　このような構成によれば、耐熱性、難燃性が高い樹脂材料を用いて絶縁部を形成しているため、モータの外部に火や煙が漏れ出ることを予防でき、モータの安全性が向上する。 According to such a configuration, since the insulating portion is formed using a resin material having high heat resistance and flame retardancy, it is possible to prevent fire and smoke from leaking outside the motor, and the safety of the motor is improved. improves.
図１は、本発明の実施の形態におけるモータを側面から見た半断面図である。FIG. 1 is a half sectional view of a motor according to an embodiment of the present invention as seen from the side.
　本発明の実施の形態におけるモータは、後述するように、耐熱性、難燃性が高い樹脂材料を用いて絶縁部を形成しており、これによって、モータの安全性の向上を図っている。 As will be described later, the motor according to the embodiment of the present invention has an insulating portion formed of a resin material having high heat resistance and flame retardancy, thereby improving the safety of the motor.
　つまり、上述のような技術を含む従来の手法は、次のような改善すべき点があった。すなわち、温度感応素子に故障が生じた場合、巻線の温度が検出できなくなる。よって、モータが異常な状態になったとしても、ファンモータを駆動する制御部には、温度感応素子から巻線温度が所定温度に達したことを知らせる信号は伝達されない。したがって、巻線の温度は上昇を続ける。この結果、従来のモータは、安全に運転を停止することができない。最悪の場合、従来のモータは、発火に至ることも考えられる。 That is, the conventional method including the above-described technique has the following points to be improved. That is, when a failure occurs in the temperature sensitive element, the temperature of the winding cannot be detected. Therefore, even if the motor is in an abnormal state, a signal notifying that the winding temperature has reached the predetermined temperature is not transmitted from the temperature sensitive element to the control unit that drives the fan motor. Thus, the winding temperature continues to rise. As a result, the conventional motor cannot be safely stopped. In the worst case, the conventional motor may lead to ignition.
　そこで、本発明の実施の形態では、モータに取付けられる保護装置が機能しなくなった場合であっても、モータが発火に至らないよう、モータの安全性の向上を図っている。 Therefore, in the embodiment of the present invention, even if the protective device attached to the motor stops functioning, the safety of the motor is improved so that the motor does not ignite.
　以下、本発明の実施の形態について、図面を参照しながら説明する。なお、以下の実施の形態は、本発明を具現化した一例であって、本発明の技術的範囲を制限するものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.
　（実施の形態）
　図１は、本発明の実施の形態におけるモータを側面から見た半断面図である。本実施の形態におけるモータについて、図１を用いて説明する。なお、以下の説明は、空気調和機に用いられるファンモータを例示して説明する。 (Embodiment)
FIG. 1 is a half sectional view of a motor according to an embodiment of the present invention as seen from the side. The motor in the present embodiment will be described with reference to FIG. In addition, the following description demonstrates and demonstrates the fan motor used for an air conditioner.
　図１に示すように、本実施の形態におけるモータ１００は、ステータ１０と、ロータ２０と、軸受３０と、モールド部４０と、ブラケット５０と、を備える。 As shown in FIG. 1, the motor 100 in the present embodiment includes a stator 10, a rotor 20, a bearing 30, a mold part 40, and a bracket 50.
　ステータ１０は、軸心２１ａ方向に延伸したステータコア１１と、ステータコア１１に巻き回される巻線１２と、ステータコア１１と巻線１２との間に位置する絶縁部１３と、を有する。 The stator 10 includes a stator core 11 that extends in the direction of the axis 21 a, a winding 12 that is wound around the stator core 11, and an insulating portion 13 that is positioned between the stator core 11 and the winding 12.
　ロータ２０は、ステータ１０と空隙を介して向い合って位置する。ロータ２０は、軸心２１ａを回転中心とする回転軸２１と、軸心２１ａ方向に延伸するとともに、回転軸２１に取付けられる回転体２２と、を有する。 The rotor 20 is located facing the stator 10 through a gap. The rotor 20 includes a rotating shaft 21 having the shaft center 21 a as a rotation center, and a rotating body 22 that extends in the direction of the shaft center 21 a and is attached to the rotating shaft 21.
　一対の軸受３０（３０ａ、３０ｂ）は、回転軸２１を回動自在に支持する。 The pair of bearings 30 (30a, 30b) rotatably supports the rotary shaft 21.
　モールド部４０は、ステータ１０において、ステータ１０がロータ２０と向い合う反対側を樹脂モールド４１で覆う。 The mold part 40 covers the opposite side of the stator 10 where the stator 10 faces the rotor 20 with a resin mold 41.
　ブラケット５０は、軸心２１ａ方向におけるモータ１００の端部に位置するとともに、軸受３０ａを保持してモールド部４０に取付けられる。 The bracket 50 is located at the end of the motor 100 in the direction of the axis 21a, and is attached to the mold part 40 while holding the bearing 30a.
　絶縁部１３は、絶縁性を有する部材であり、引火点が３３０℃以上の樹脂で形成される。より好ましくは、絶縁部１３を形成する樹脂は、引火点が３５０℃以上のものを用いるほうがよい。 The insulating part 13 is an insulating member, and is formed of a resin having a flash point of 330 ° C. or higher. More preferably, the resin forming the insulating portion 13 should have a flash point of 350 ° C. or higher.
　また、特に顕著な作用、効果を奏する形態は、以下のとおりである。 Also, the forms that exhibit particularly remarkable actions and effects are as follows.
　すなわち、本実施の形態におけるモータ１００に用いられる絶縁部１３は、発火温度が４２０℃以上の樹脂で形成される。より好ましくは、絶縁部１３を形成する樹脂は、発火温度が４８０℃以上のものを用いるほうがよい。 That is, the insulating portion 13 used in the motor 100 in the present embodiment is formed of a resin having an ignition temperature of 420 ° C. or higher. More preferably, the resin forming the insulating portion 13 should have an ignition temperature of 480 ° C. or higher.
　また、本実施の形態におけるモータ１００に用いられる絶縁部１３は、溶融温度が２５０℃以上の樹脂で形成される。より好ましくは、絶縁部１３を形成する樹脂は、溶融温度が２８０℃以上のものを用いるほうがよい。 Further, the insulating portion 13 used in the motor 100 in the present embodiment is formed of a resin having a melting temperature of 250 ° C. or higher. More preferably, the resin forming the insulating portion 13 should have a melting temperature of 280 ° C. or higher.
　あるいは、本実施の形態におけるモータ１００において、絶縁部１３を形成する樹脂は、分解ガスが不燃性である。 Alternatively, in the motor 100 according to the present embodiment, the resin forming the insulating portion 13 has a non-combustible decomposition gas.
　さらに、図面とともに詳細に説明する。 Furthermore, it explains in detail with a drawing.
　図１に示すように、ステータコア１１は、略環状に形成されたヨークと、このヨークの内周面から軸心２１ａに向かって突き出たティースと、で構成できる。ティースには、絶縁部１３を介して巻線１２が巻き回される。巻線１２が巻き回されたステータコア１１の外周側には、樹脂モールド４１が成型され、モールド部４０が形成される。ステータコア１１の内周側には、空隙を介してロータ２０が取付けられる。ロータ２０は、軸受３０により、回転自在に保持される。ステータ１０には、ブラケット５０が取付けられる。 As shown in FIG. 1, the stator core 11 can be composed of a substantially annular yoke and teeth projecting from the inner peripheral surface of the yoke toward the axis 21a. A winding 12 is wound around the tooth via an insulating portion 13. A resin mold 41 is molded on the outer peripheral side of the stator core 11 around which the winding 12 is wound, and a mold portion 40 is formed. A rotor 20 is attached to the inner peripheral side of the stator core 11 via a gap. The rotor 20 is rotatably held by the bearing 30. A bracket 50 is attached to the stator 10.
　具体的には、絶縁部１３を形成する樹脂材料は、液晶ポリマー（Ｌｉｑｕｉｄ　Ｃｒｙｓｔａｌ　Ｐｏｌｙｍｅｒ、ＬＣＰ樹脂ともいう）、ポリフェニレンサルファイド（Ｐｏｌｙ　Ｐｈｅｎｙｌｅｎｅ　Ｓｕｌｆｉｄｅ、ＰＰＳ樹脂ともいう）、ポリフタルアミド（Ｐｏｌｙｐｈｔｈａｌａｍｉｄｅ、ＰＰＡ樹脂ともいう）、不飽和ポリエステル（Ｕｎｓａｔｕｒａｔｅｄ　Ｐｏｌｙｅｓｔｅｒ）、ポリエーテルエーテルケトン（ＰｏｌｙＥｔｈｅｒ　Ｅｔｈｅｒ　Ｋｅｔｏｎｅ、ＰＥＥＫ樹脂ともいう）、フェノール（Ｐｈｅｎｏｌ　Ｆｏｒｍａｌｄｅｈｙｄｅ、ＰＦ樹脂ともいう）のいずれか一つを主成分とするものが用いられる。特に、不飽和ポリエステルを主成分とする樹脂としてＢＭＣ（Ｂｕｌｋ　Ｍｏｌｄｉｎｇ　Ｃｏｍｐｏｕｎｄ）が使用できる。 Specifically, the resin material forming the insulating portion 13 is a liquid crystal polymer (also referred to as Liquid Crystal Polymer or LCP resin), polyphenylene sulfide (also referred to as Poly Phenylylene Sulfide or PPS resin), or polyphthalamide (Polyphthalamide or PPA resin). And an unsaturated polyester (Unsaturated Polyester), polyether ether ketone (PolyEther Ether Ketone, also referred to as PEEK resin), and phenol (also referred to as Phenolic formaldehyde, PF resin). . In particular, BMC (Bulk Molding Compound) can be used as a resin mainly composed of unsaturated polyester.
　特に、樹脂モールド４１は、不飽和ポリエステルを主成分とする樹脂により形成され、その粉末フィラーとしては水酸化アルミニウムのみを用いることができる。特に、樹脂モールド４１は、不飽和ポリエステルを主成分とする樹脂としてＢＭＣが使用できる。 In particular, the resin mold 41 is formed of a resin mainly composed of unsaturated polyester, and only aluminum hydroxide can be used as the powder filler. In particular, the resin mold 41 can use BMC as a resin mainly composed of unsaturated polyester.
　本構成とすれば、絶縁部１３の耐熱性が向上する。よって、本実施の形態によれば、巻線１２に異常な電流が流され続けて、巻線１２の温度が高温に達したとしても、絶縁部１３が溶融し、引火性のガスを生じることがない。したがって、モータ１００の内部に引火性のガスが充満しないため、何らかの要因により、ガスに引火し、モータが発火に至ることはない。この結果、本実施の形態におけるモータは、安全性が向上する。 This configuration improves the heat resistance of the insulating portion 13. Therefore, according to the present embodiment, even if an abnormal current continues to flow through the winding 12 and the temperature of the winding 12 reaches a high temperature, the insulating portion 13 melts and generates flammable gas. There is no. Therefore, since the flammable gas is not filled in the motor 100, the gas is ignited for some reason and the motor does not ignite. As a result, the safety of the motor in the present embodiment is improved.
　なお、上記説明では、モータとしてインナーロータ型モータを用いて説明した。本発明は、アウターロータ型モータにも適用できる。 In the above description, an inner rotor type motor is used as the motor. The present invention can also be applied to an outer rotor type motor.
　本発明のモータは、冷蔵庫などに用いられるファンモータにも有用である。 The motor of the present invention is also useful for a fan motor used for a refrigerator or the like.
　１０　　ステータ
　１１　　ステータコア
　１２　　巻線
　１３　　絶縁部
　２０　　ロータ
　２１　　回転軸
　２１ａ　　軸心
　２２　　回転体
　３０，３０ａ，３０ｂ　　軸受
　４０　　モールド部
　４１　　樹脂モールド
　５０　　ブラケット
　１００　　モータ DESCRIPTION OF SYMBOLS 10 Stator 11 Stator core 12 Winding 13 Insulation part 20 Rotor 21 Rotating shaft 21a Shaft center 22 Rotating body 30, 30a, 30b Bearing 40 Mold part 41 Resin mold 50 Bracket 100 Motor

Claims (7)

  1. 軸心方向に延伸したステータコアと、
    前記ステータコアに巻き回される巻線と、
    前記ステータコアと前記巻線との間に位置する絶縁部と、
    を有するステータと、
    前記ステータと空隙を介して向い合って位置し、
    前記軸心を回転中心とする回転軸と、
    前記軸心方向に延伸するとともに、前記回転軸に取付けられる回転体と、
    を有するロータと、
    前記回転軸を回動自在に支持する軸受と、
    前記ステータにおいて、前記ステータが前記ロータと向い合う反対側を樹脂モールドで覆うモールド部と、
    前記軸心方向における端部に位置するとともに、前記軸受を保持して前記モールド部に取付けられるブラケットと、
    を備え、
    前記絶縁部を、難燃性または耐熱性の樹脂で形成したモータ。     A stator core extending in the axial direction;
    Windings wound around the stator core;
    An insulating part located between the stator core and the winding;
    A stator having
    Located facing the stator via a gap,
    A rotation axis centered on the axis;
    A rotating body that extends in the axial direction and is attached to the rotating shaft;
    A rotor having
    A bearing that rotatably supports the rotating shaft;
    In the stator, a mold portion that covers the opposite side of the stator facing the rotor with a resin mold,
    A bracket that is located at an end in the axial direction and that holds the bearing and is attached to the mold part;
    With
    A motor in which the insulating part is formed of a flame-retardant or heat-resistant resin.
  2. 前記絶縁部は、引火点が３３０℃以上の樹脂で形成される請求項１に記載のモータ。 The motor according to claim 1, wherein the insulating portion is formed of a resin having a flash point of 330 ° C. or higher.
  3. 前記絶縁部は、発火温度が４２０℃以上の樹脂で形成される請求項１に記載のモータ。 The motor according to claim 1, wherein the insulating portion is formed of a resin having an ignition temperature of 420 ° C. or higher.
  4. 前記絶縁部は、溶融温度が２５０℃以上の樹脂で形成される請求項１に記載のモータ。 The motor according to claim 1, wherein the insulating part is formed of a resin having a melting temperature of 250 ° C. or higher.
  5. 前記絶縁部を形成する前記樹脂は、分解ガスが不燃性である請求項１に記載のモータ。 The motor according to claim 1, wherein the resin forming the insulating portion has a non-combustible decomposition gas.
  6. 前記樹脂は、液晶ポリマー、ポリフェニレンサルファイド、ポリフタルアミド、不飽和ポリエステル、ポリエーテルエーテルケトン、フェノールのいずれか一つを主成分とする請求項１に記載のモータ。 2. The motor according to claim 1, wherein the resin is mainly composed of any one of a liquid crystal polymer, polyphenylene sulfide, polyphthalamide, unsaturated polyester, polyether ether ketone, and phenol.
  7. 前記樹脂モールドは、不飽和ポリエステルを主成分とする樹脂により形成され、粉末フィラーとして水酸化アルミニウムのみを用いる請求項１に記載のモータ。 The motor according to claim 1, wherein the resin mold is formed of a resin mainly composed of unsaturated polyester, and uses only aluminum hydroxide as a powder filler.
PCT/JP2017/044640 2016-12-26 2017-12-13 Motor WO2018123576A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05283247A (en) * 1992-04-03 1993-10-29 Sony Corp Transformer
JPH0883720A (en) * 1994-09-13 1996-03-26 Matsushita Electric Ind Co Ltd Molded coil part
JP2007252176A (en) * 2006-02-14 2007-09-27 Yaskawa Electric Corp Mold motor and manufacturing method therefor, and molding die
JP2009278749A (en) * 2008-05-14 2009-11-26 Panasonic Corp Mold motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05283247A (en) * 1992-04-03 1993-10-29 Sony Corp Transformer
JPH0883720A (en) * 1994-09-13 1996-03-26 Matsushita Electric Ind Co Ltd Molded coil part
JP2007252176A (en) * 2006-02-14 2007-09-27 Yaskawa Electric Corp Mold motor and manufacturing method therefor, and molding die
JP2009278749A (en) * 2008-05-14 2009-11-26 Panasonic Corp Mold motor

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