WO2018047459A1 - Commutator and commutator motor - Google Patents

Commutator and commutator motor Download PDF

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Publication number
WO2018047459A1
WO2018047459A1 PCT/JP2017/025089 JP2017025089W WO2018047459A1 WO 2018047459 A1 WO2018047459 A1 WO 2018047459A1 JP 2017025089 W JP2017025089 W JP 2017025089W WO 2018047459 A1 WO2018047459 A1 WO 2018047459A1
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Prior art keywords
commutator
piece
commutator piece
brush sliding
support member
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PCT/JP2017/025089
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French (fr)
Japanese (ja)
Inventor
藤田　克敏
圭策 中野
山口　明
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パナソニックＩｐマネジメント株式会社
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Priority to CN201780045258.5A priority Critical patent/CN109478830A/en
Priority to JP2018538255A priority patent/JPWO2018047459A1/en
Publication of WO2018047459A1 publication Critical patent/WO2018047459A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation

Definitions

  • This disclosure relates to a commutator and a commutator motor including the commutator.
  • a commutator motor equipped with a commutator is mounted on an electric device such as a household vacuum cleaner.
  • Examples of such a commutator include a commutator 800 according to Patent Document 1 shown in FIG. 5 or a commutator 900 according to Patent Document 2 shown in FIG. 6.
  • One cause of the loss of the commutator motor is, for example, copper loss.
  • Copper loss occurs in the windings connected to the winding connection portions 801 and 901 of the commutators 800 and 900.
  • the commutators 800 and 900 have a structure in which the winding connection portions 801 and 901 are bent outward from the brush sliding portions 802 and 902. With such a structure, the outer diameter W1 of the winding connection portions 801 and 901 can be increased, and the distance between the adjacent hooks 811a and 911a of the winding connection portions 801 and 901 can be increased. This makes it possible to wind a large-diameter winding around the hooks 811a and 911a. As a result, it is possible to reduce the resistance value of the winding and suppress the occurrence of copper loss.
  • the commutators 800 and 900 have a structure in which the outer diameter W2 of the brush sliding portions 802 and 902 is smaller than the outer diameter W1 of the winding connection portions 801 and 901. With such a structure, it is possible to reduce the peripheral speed of the contact surfaces 814 and 914 of the brush sliding portions 802 and 902 with the power supply brush. As a result, it is possible to reduce the contact friction and suppress the occurrence of brush sliding loss.
  • the commutators 800 and 900 are provided with anchors 817 and 917 at portions 812 and 912 constituting the brush sliding portions 802 and 902 of the commutator pieces 810 and 910, respectively.
  • an anchor 817 is also provided in a portion 811 constituting the winding connection portion 801 in the commutator piece 810.
  • This disclosure is intended to provide a commutator having high bonding strength between a commutator piece and a support member, and a commutator motor including the commutator.
  • the commutator according to the present disclosure includes a commutator piece that constitutes the winding connection portion and the brush sliding portion, and a support member that supports the commutator piece in a state in contact with the commutator piece.
  • An erosion layer having a depth greater than 0 ⁇ m and less than or equal to 10 ⁇ m is formed on at least a part of the contact surface of the commutator piece with the support member.
  • the commutator motor according to the present disclosure includes the commutator.
  • the commutator and the commutator motor according to the present disclosure have high bonding strength between the commutator piece and the support member.
  • FIG. 1 is a half sectional view showing a commutator according to an embodiment.
  • FIG. 2 is a schematic diagram of an electric blower including the commutator motor according to the embodiment.
  • FIG. 3 is a perspective view of the armature of the commutator motor according to the embodiment.
  • FIG. 4 is a half sectional view showing a commutator according to a modification.
  • FIG. 5 is a half sectional view showing a commutator according to a conventional example.
  • FIG. 6 is a half sectional view showing a commutator according to another conventional example.
  • a commutator of a commutator motor mounted on a household vacuum cleaner will be described as an example.
  • the configuration of the commutator motor is the same as the conventional one except for the configuration related to the commutator. Therefore, about a commutator motor, only the structure regarding a commutator is demonstrated and description is abbreviate
  • FIG. 1 is a half sectional view showing a commutator according to an embodiment.
  • the commutator 100 according to the embodiment includes a plurality of commutator pieces 110 and a support member 120 that supports the commutator pieces 110.
  • Each commutator piece 110 is a substantially strip-shaped conductor, and is formed of a metal such as copper.
  • Each commutator piece 110 has a riser portion 111 on one end side and a flat portion 112 on the other end side.
  • Each riser portion 111 is formed with a hook 111a for winding a winding (not shown).
  • the support member 120 is a substantially cylindrical insulator, and is formed of an insulating material such as an insulating resin.
  • the support member 120 supports the plurality of commutator pieces 110 on the outer peripheral surface thereof.
  • the plurality of commutator pieces 110 are arranged in parallel on the outer peripheral surface of the support member 120 so as to be cylindrical as a whole.
  • the riser portions 111 of each commutator piece 110 are all oriented in the same direction.
  • These riser portions 111 constitute the winding connection portion 101 of the commutator 100. That is, the winding connection part 101 is an aggregate of a plurality of riser parts 111.
  • all the flat portions 112 of each commutator piece 110 are also directed in the same direction.
  • These flat portions 112 constitute the brush sliding portion 102 of the commutator 100. That is, the brush sliding portion 102 is an aggregate of a plurality of flat portions 112.
  • the outer diameters of the winding connection part 101 and the brush sliding part 102 are different. Specifically, the outer diameter W1 of the winding connection portion 101 is larger than the outer diameter W2 of the brush sliding portion 102. This makes it possible to wind a winding having a large wire diameter. Further, the outer diameter W1 of the winding connection portion 101 is more preferably 120% or more with respect to the outer diameter W2 of the brush sliding portion 102. This makes it easier to wind a winding with a large wire diameter by the hook 111a. Furthermore, the outer diameter W1 of the winding connection part 101 is more preferably 150% or less with respect to the outer diameter W2 of the brush sliding part 102. Thereby, it can prevent that the outer diameter W1 of the coil
  • the outer diameter W1 of the winding connection portion 101 is determined by the wire diameter of the winding applied to the hook 111a.
  • the outer diameter W2 of the brush sliding portion 102 is determined by the number of commutator pieces 110, the width of the commutator pieces 110, and the width of a power supply brush (not shown).
  • each commutator piece 110 an intermediate portion 113 between a riser portion 111 constituting the winding connection portion 101 and a flat portion 112 constituting the brush sliding portion 102 is bent in a step shape. This realizes a configuration in which the outer diameter W1 of the winding connection portion 101 is larger than the outer diameter W2 of the brush sliding portion 102.
  • the plurality of commutator pieces 110 in which the intermediate portion 113 is bent in a staircase shape are drawn so that, for example, the outer diameter of the portion that becomes the winding connection portion 101 and the portion that becomes the brush sliding portion 102 are different.
  • a cylindrical metal member can be formed by further processing.
  • the intermediate portion 113 of each commutator piece 110 can be individually bent in a step shape.
  • the thickness of the flat portion 112 is in the range of 100% to 110% with respect to the thickness of the riser portion 111. If the thickness of the flat portion 112 is in the range of 100% to 110% with respect to the thickness of the riser portion 111, the outer diameter W2 of the brush sliding portion 102 can be further reduced. Thereby, the peripheral speed of the contact surface 114 with the electric power supply brush in the brush sliding part 102 can be lowered
  • an erosion layer 117 having a depth of frost-like eroded portion 116 and having a depth greater than 0 ⁇ m and 10 ⁇ m or less is formed on the contact surface 115 with the support member 120 over the entire circumference of the commutator 100.
  • the bonding strength between each commutator piece 110 and the support member 120 can be further increased.
  • the erosion layer 117 can be formed relatively easily. Note that the erosion layer 117 may not be formed over the entire circumference of the commutator 100, and may be formed in a part in the circumferential direction.
  • the erosion layer 117 can be formed by performing acid etching. If the depth of the erosion layer 117 is set in a range of greater than 0 ⁇ m and 10 ⁇ m or less, the erosion layer 117 can be formed while maintaining the strength.
  • the portion constituting the commutator piece 110 is sequentially removed from the contact surface 115 by etching.
  • the removed commutator piece 110 develops into a tree ice shape. Therefore, when the erosion layer 117 is developed deeply, the opening portion of the commutator piece 110 to be removed is also widened. If the opening portion of the commutator piece 110 is excessively widened, the erosion layer 117 cannot be kept in the form of frost and becomes a simple hole.
  • the commutator piece 110 in which the holes are formed cannot be expected to have a holding force as high as the appropriately formed erosion layer 117.
  • the resin 121 that is the material of the support member 120 enters in a complicated manner.
  • the erosion part 116 is a part where the resin 121 enters the commutator piece 110.
  • the erosion layer 117 is a layer in which the erosion portion 116 is formed in the commutator piece 110.
  • the centrifugal force acting on the commutator piece 110 when the commutator 100 rotates can be suppressed to a small value. Further, the shape of each commutator piece 110 is not complicated. For this reason, the cost increase of the commutator 100 can also be suppressed.
  • the commutator 100 as described above can be manufactured, for example, as follows.
  • a process for forming an erosion layer 117 having a frost-like erosion portion 116 on the entire portion of the commutator piece 110 that becomes the contact surface 115 with the support member 120 is performed.
  • the commutator piece 110 is immersed in a chemical etching agent. Since the surface of the commutator piece 110 immersed in the chemical etching agent is eroded by the chemical etching agent, a minute space is generated. The micro space moderately roughened by the chemical etching agent is referred to as the eroded portion 116.
  • the shape of the eroded portion 116 may be “dendritic”.
  • the metal member is put into the mold and molded with resin.
  • the resin 121 before solidification enters into the erosion portion 116 of the erosion layer 117 in a complicated manner. Thereby, each commutator piece 110 and the support member 120 are joined, and the commutator 100 according to the embodiment is completed.
  • each commutator piece 110 and the support member 120 are joined by the resin 121 before solidification entering the erosion portion 116 of the erosion layer 117 in a complicated manner. Therefore, even if each commutator piece 110 is not provided with an anchor, each commutator piece 110 and the support member 120 can be joined with high joining strength.
  • FIG. 2 is a mimetic diagram of electric blower 1 provided with the commutator electric motor concerning an embodiment.
  • the electric blower 1 is provided with a commutator motor in a cylindrical frame 2 that is closed on one side and opened in the opposite direction.
  • the commutator motor is composed of a field 3 and an armature 4.
  • the field magnet 3 includes a field iron core 5 having a square cylindrical shape with a pair of salient poles facing each other in the cylinder, and a field winding 6 wound around the salient pole.
  • the armature 4 is rotatably provided in the cylinder so as to be sandwiched between the salient poles.
  • FIG. 3 is a perspective view of the armature 4 of the commutator motor according to the embodiment.
  • the armature 4 includes an armature core 21, an armature winding 22, a commutator 100, and a rotating shaft 9.
  • the commutator 100 supports the commutator piece 110 while being in contact with the commutator piece 110 constituting the winding connection portion 101 and the brush sliding portion 102.
  • the supporting member 120 is provided.
  • An erosion layer 117 having a depth greater than 0 ⁇ m and less than or equal to 10 ⁇ m is formed on at least a part of the contact surface 115 of the commutator piece 110 with the support member 120 and having an erosion portion 116 formed by resin entering the commutator piece 110. Has been.
  • the shape of the eroded portion 116 is a tree ice shape.
  • the outer diameters of the winding connection part 101 and the brush sliding part 102 are different.
  • the outer diameter of the winding connection part 101 is preferably 120% or more and 150% or less with respect to the outer diameter of the brush sliding part 102.
  • the commutator piece 110 has an intermediate portion 113 between a portion constituting the winding connection portion 101 and a portion constituting the brush sliding portion 102 bent in a step shape.
  • the commutator piece 110 may be formed by further processing a cylindrical member that has been drawn so that the outer diameters of the winding connection portion 101 and the brush sliding portion 102 are different.
  • the thickness of the portion constituting the brush sliding portion 102 is preferably 100% or more and 110% or less with respect to the thickness of the portion constituting the winding connection portion 101.
  • the commutator motor of this embodiment may include the commutator 100.
  • FIG. 4 is a half sectional view showing a commutator according to a modification.
  • the contact surface 215 with the support member 220 in each commutator piece 210 is provided with an uneven shape.
  • the commutator 200 according to the modification is different from the commutator 100 according to the above embodiment.
  • Other configurations are basically the same as those of the commutator 100 according to the above embodiment. Therefore, only the difference will be described in detail, and the description of other configurations will be simplified or omitted.
  • the commutator 200 includes a plurality of commutator pieces 210 and a support member 220 that supports the commutator pieces 210.
  • Each commutator piece 210 has a riser portion 211, a flat portion 212, an intermediate portion 213, and a contact surface 214 with the power supply brush.
  • Each riser portion 211 is formed with a hook 211a for winding a winding (not shown).
  • the outer diameter of the winding connection portion 201 is smaller than the outer diameter of the brush sliding portion 202.
  • each commutator piece 210 As for each commutator piece 210, the uneven
  • Each commutator piece 210 has an erosion layer 217 having a frosted erosion portion (not shown) on the entire contact surface 215 with the support member 220.
  • the contact area of each commutator piece 210 and the support member 220 increases in the range where the concavo-convex shape is given, the range in which the erosion layer 217 is formed can be expanded. Therefore, the bonding strength between each commutator piece 210 and the support member 220 can be further increased.
  • the uneven shape is not limited to the surface of the flat portion 212 but may be applied to the surface of the riser portion 211, the surface of the intermediate portion 213, or the entire contact surface 215 with the support member 220. You may give it.
  • the commutator and commutator motor according to the present disclosure can be widely used for electrical equipment such as a household vacuum cleaner.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

A commutator (100) is provided with: a commutator piece (110) which constitutes a winding connecting part (101) and a brush sliding part (102); and a support member (120) that supports the commutator piece (110) in a state in which the support member (120) contacts the commutator piece (110). In the commutator piece (110), in at least part of a contact surface (115) with the support member (120), a weathered layer (117) is formed having a depth of more than 0μm and less than or equal to 10 μm and which has a weathered part (116) formed by a resin penetrating the commutator piece.

Description

整流子および整流子電動機Commutator and commutator motor
　本開示は、整流子およびそれを備えた整流子電動機に関する。 This disclosure relates to a commutator and a commutator motor including the commutator.
　従来から、家庭用掃除機などの電気機器に、整流子を備えた整流子電動機を搭載することが行われている。そのような整流子としては、図５に示す特許文献１に係る整流子８００、または、図６に示す特許文献２に係る整流子９００が挙げられる。 Conventionally, a commutator motor equipped with a commutator is mounted on an electric device such as a household vacuum cleaner. Examples of such a commutator include a commutator 800 according to Patent Document 1 shown in FIG. 5 or a commutator 900 according to Patent Document 2 shown in FIG. 6.
　近年、電気機器に対する省エネルギー化の要求が高まっている。その要求を満たすための手段の一つとして、整流子電動機を高効率化させることが考えられる。高効率化を実現するために整流子電動機の損失を抑えることが検討されている。 In recent years, there has been an increasing demand for energy saving for electrical equipment. As one of means for satisfying the demand, it is conceivable to increase the efficiency of the commutator motor. In order to realize high efficiency, it has been studied to suppress the loss of the commutator motor.
　整流子電動機の損失の一因として、例えば銅損が挙げられる。銅損は、整流子８００，９００の巻線接続部８０１，９０１に接続される巻線で発生する。この銅損の発生を抑える手段としては、巻線の線径を大きくして巻線の抵抗値を下げることが考えられる。そのため、整流子８００，９００は、巻線接続部８０１，９０１がブラシ摺動部８０２，９０２よりも外側へ折り曲げられた構造となっている。このような構造とすることで、巻線接続部８０１，９０１の外径Ｗ１を大きくして、巻線接続部８０１，９０１の隣り合うフック８１１ａ，９１１ａ間の距離を大きくすることができる。これにより、フック８１１ａ，９１１ａに、線径の大きな巻線を巻回することが可能になる。その結果、巻線の抵抗値を下げて銅損の発生を抑えることが可能になる。 One cause of the loss of the commutator motor is, for example, copper loss. Copper loss occurs in the windings connected to the winding connection portions 801 and 901 of the commutators 800 and 900. As a means for suppressing the occurrence of copper loss, it is conceivable to increase the wire diameter of the winding to lower the resistance value of the winding. Therefore, the commutators 800 and 900 have a structure in which the winding connection portions 801 and 901 are bent outward from the brush sliding portions 802 and 902. With such a structure, the outer diameter W1 of the winding connection portions 801 and 901 can be increased, and the distance between the adjacent hooks 811a and 911a of the winding connection portions 801 and 901 can be increased. This makes it possible to wind a large-diameter winding around the hooks 811a and 911a. As a result, it is possible to reduce the resistance value of the winding and suppress the occurrence of copper loss.
　また、整流子電動機の損失の他の要因として、ブラシ摺動損が挙げられる。ブラシ摺動損は、給電ブラシと整流子８００，９００との接触摩擦によって発生する。このブラシ摺動損の発生を抑える手段としては、ブラシ摺動部８０２，９０２における給電ブラシとの接触面８１４，９１４の周速を下げて接触摩擦を小さくすることが考えられる。そのため、整流子８００，９００は、ブラシ摺動部８０２，９０２の外径Ｗ２が巻線接続部８０１，９０１の外径Ｗ１よりも小さい構造となっている。このような構造とすることで、ブラシ摺動部８０２，９０２における給電ブラシとの接触面８１４，９１４の周速を下げることが可能になる。その結果、接触摩擦を小さくしてブラシ摺動損の発生を抑えることが可能になる。 Also, as another factor of the loss of the commutator motor, there is a brush sliding loss. The brush sliding loss occurs due to contact friction between the power supply brush and the commutators 800 and 900. As means for suppressing the occurrence of the brush sliding loss, it is conceivable to reduce the contact friction by reducing the peripheral speed of the contact surfaces 814 and 914 of the brush sliding portions 802 and 902 with the power supply brush. Therefore, the commutators 800 and 900 have a structure in which the outer diameter W2 of the brush sliding portions 802 and 902 is smaller than the outer diameter W1 of the winding connection portions 801 and 901. With such a structure, it is possible to reduce the peripheral speed of the contact surfaces 814 and 914 of the brush sliding portions 802 and 902 with the power supply brush. As a result, it is possible to reduce the contact friction and suppress the occurrence of brush sliding loss.
　ところで、整流子８００，９００は、整流子片８１０，９１０におけるブラシ摺動部８０２，９０２を構成する部分８１２，９１２に、アンカー８１７，９１７が設けられている。また、整流子８００は、整流子片８１０における巻線接続部８０１を構成する部分８１１にも、アンカー８１７が設けられている。これらアンカー８１７，９１７を設けることによって、整流子片８１０，９１０と支持部材８２０，９２０との接合強度を高めている。 Incidentally, the commutators 800 and 900 are provided with anchors 817 and 917 at portions 812 and 912 constituting the brush sliding portions 802 and 902 of the commutator pieces 810 and 910, respectively. In the commutator 800, an anchor 817 is also provided in a portion 811 constituting the winding connection portion 801 in the commutator piece 810. By providing the anchors 817 and 917, the bonding strength between the commutator pieces 810 and 910 and the support members 820 and 920 is increased.
　しかしながら、整流子片８１０，９１０にアンカー８１７，９１７を設けると、整流子片８１０，９１０の肉厚が増加する。このため、整流子８００，９００回転時に整流子片８１０，９１０に働く遠心力が増加する。また、整流子片８１０，９１０にアンカー８１７，９１７を設けると、整流子片８１０，９１０の形状が複雑になる。このため、整流子８００，９００が高コスト化する。 However, when the anchors 817 and 917 are provided on the commutator pieces 810 and 910, the thickness of the commutator pieces 810 and 910 increases. For this reason, the centrifugal force which acts on the commutator pieces 810 and 910 increases when the commutators 800 and 900 rotate. Further, when the anchors 817 and 917 are provided on the commutator pieces 810 and 910, the shapes of the commutator pieces 810 and 910 become complicated. For this reason, commutators 800 and 900 are expensive.
特開平８－３２２２０６号公報JP-A-8-322206 特開平９－１８２３８３号公報JP-A-9-182383
　本開示は、整流子片と支持部材との接合強度が高い整流子、および、その整流子を備えた整流子電動機を提供することを目的とする。 This disclosure is intended to provide a commutator having high bonding strength between a commutator piece and a support member, and a commutator motor including the commutator.
　本開示に係る整流子は、巻線接続部およびブラシ摺動部を構成する整流子片と、整流子片と接触した状態で整流子片を支持する支持部材とを備える。整流子片における支持部材との接触面の少なくとも一部に、樹脂が整流子片に入り込んで形成される侵食部を有する深さが０μｍより大きく１０μｍ以下の侵食層が形成されている。 The commutator according to the present disclosure includes a commutator piece that constitutes the winding connection portion and the brush sliding portion, and a support member that supports the commutator piece in a state in contact with the commutator piece. An erosion layer having a depth greater than 0 μm and less than or equal to 10 μm is formed on at least a part of the contact surface of the commutator piece with the support member.
　本開示に係る整流子電動機は、上記整流子を備える。 The commutator motor according to the present disclosure includes the commutator.
　本開示に係る整流子および整流子電動機は、整流子片と支持部材との接合強度が高い。 The commutator and the commutator motor according to the present disclosure have high bonding strength between the commutator piece and the support member.
図１は、実施の形態に係る整流子を示す半断面図である。FIG. 1 is a half sectional view showing a commutator according to an embodiment. 図２は、実施の形態に係る整流子電動機を備えた電動送風機の模式図である。FIG. 2 is a schematic diagram of an electric blower including the commutator motor according to the embodiment. 図３は、実施の形態に係る整流子電動機の電機子の斜視図である。FIG. 3 is a perspective view of the armature of the commutator motor according to the embodiment. 図４は、変形例に係る整流子を示す半断面図である。FIG. 4 is a half sectional view showing a commutator according to a modification. 図５は、従来例に係る整流子を示す半断面図である。FIG. 5 is a half sectional view showing a commutator according to a conventional example. 図６は、別の従来例に係る整流子を示す半断面図である。FIG. 6 is a half sectional view showing a commutator according to another conventional example.
　以下、本開示に係る整流子および整流子電動機の実施の形態を、図面に基づき説明する。説明は当業者が本開示を十分に理解するために提供するのであって、これにより、請求の範囲に記載の主題を限定する意図はない。 Hereinafter, embodiments of a commutator and a commutator motor according to the present disclosure will be described with reference to the drawings. The description is provided to enable a person skilled in the art to fully understand the present disclosure, and is not intended to limit the claimed subject matter.
　なお、必要以上に詳細な説明は省略する場合がある。例えば、既によく知られた事項の詳細な説明、および、実質的に同一の構成に対する重複説明を省略する場合がある。これは、説明が不必要に冗長になるのを避け、当業者の理解を容易にするためである。 Note that more detailed explanation than necessary may be omitted. For example, detailed descriptions of already well-known matters and redundant descriptions of substantially the same configuration may be omitted. This is to prevent the explanation from becoming unnecessarily redundant and to facilitate understanding by those skilled in the art.
　以下では、家庭用掃除機に搭載される整流子電動機の整流子を例に挙げて説明する。整流子電動機の構成は、整流子に関する構成を除けば、従来と同様である。したがって、整流子電動機については、整流子に関する構成だけを説明し、整流子以外の構成については説明を省略する。 Hereinafter, a commutator of a commutator motor mounted on a household vacuum cleaner will be described as an example. The configuration of the commutator motor is the same as the conventional one except for the configuration related to the commutator. Therefore, about a commutator motor, only the structure regarding a commutator is demonstrated and description is abbreviate | omitted about structures other than a commutator.
　［実施の形態］
　以下に本開示に係る整流子の構成について、図を用いて詳細に説明する。 [Embodiment]
Hereinafter, the configuration of the commutator according to the present disclosure will be described in detail with reference to the drawings.
　（整流子の概略構成）
　図１は、実施の形態に係る整流子を示す半断面図である。図１に示すように、実施の形態に係る整流子１００は、複数の整流子片１１０と、それら整流子片１１０を支持する支持部材１２０とを備える。 (Schematic configuration of commutator)
FIG. 1 is a half sectional view showing a commutator according to an embodiment. As shown in FIG. 1, the commutator 100 according to the embodiment includes a plurality of commutator pieces 110 and a support member 120 that supports the commutator pieces 110.
　各整流子片１１０は、実質的に短冊状の導電体であって、銅などの金属で形成されている。各整流子片１１０は、一端側にライザー部分１１１を有し、他端側に平坦部分１１２を有する。そして、各ライザー部分１１１には、巻線（不図示）を巻回するためのフック１１１ａが形成されている。 Each commutator piece 110 is a substantially strip-shaped conductor, and is formed of a metal such as copper. Each commutator piece 110 has a riser portion 111 on one end side and a flat portion 112 on the other end side. Each riser portion 111 is formed with a hook 111a for winding a winding (not shown).
　支持部材１２０は、実質的に円筒状の絶縁体であって、絶縁性樹脂などの絶縁性材料で形成されている。支持部材１２０は、その外周面において複数の整流子片１１０を支持している。 The support member 120 is a substantially cylindrical insulator, and is formed of an insulating material such as an insulating resin. The support member 120 supports the plurality of commutator pieces 110 on the outer peripheral surface thereof.
　複数の整流子片１１０は、全体として筒状となるように、支持部材１２０の外周面に並列配置されている。各整流子片１１０のライザー部分１１１は全て同じ方向に向けられている。それらライザー部分１１１によって、整流子１００の巻線接続部１０１が構成されている。すなわち、巻線接続部１０１は、複数のライザー部分１１１の集合体である。一方、各整流子片１１０の平坦部分１１２も全て同じ方向に向けられている。それら平坦部分１１２によって、整流子１００のブラシ摺動部１０２が構成されている。すなわち、ブラシ摺動部１０２は、複数の平坦部分１１２の集合体である。 The plurality of commutator pieces 110 are arranged in parallel on the outer peripheral surface of the support member 120 so as to be cylindrical as a whole. The riser portions 111 of each commutator piece 110 are all oriented in the same direction. These riser portions 111 constitute the winding connection portion 101 of the commutator 100. That is, the winding connection part 101 is an aggregate of a plurality of riser parts 111. On the other hand, all the flat portions 112 of each commutator piece 110 are also directed in the same direction. These flat portions 112 constitute the brush sliding portion 102 of the commutator 100. That is, the brush sliding portion 102 is an aggregate of a plurality of flat portions 112.
　巻線接続部１０１とブラシ摺動部１０２の外径は異なっている。具体的には、巻線接続部１０１の外径Ｗ１は、ブラシ摺動部１０２の外径Ｗ２よりも大きい。これにより、線径の大きな巻線を巻回することが可能になっている。また、巻線接続部１０１の外径Ｗ１は、ブラシ摺動部１０２の外径Ｗ２に対して１２０％以上であることがより好ましい。これにより、線径の大きな巻線をフック１１１ａにより巻回しやすくなる。さらに、巻線接続部１０１の外径Ｗ１は、ブラシ摺動部１０２の外径Ｗ２に対して１５０％以下であることがより好ましい。これにより、巻線接続部１０１の外径Ｗ１が増大し過ぎるのを防止することができる。その結果、整流子１００回転時に整流子片１１０に働く遠心力を小さく抑えることができる。 The outer diameters of the winding connection part 101 and the brush sliding part 102 are different. Specifically, the outer diameter W1 of the winding connection portion 101 is larger than the outer diameter W2 of the brush sliding portion 102. This makes it possible to wind a winding having a large wire diameter. Further, the outer diameter W1 of the winding connection portion 101 is more preferably 120% or more with respect to the outer diameter W2 of the brush sliding portion 102. This makes it easier to wind a winding with a large wire diameter by the hook 111a. Furthermore, the outer diameter W1 of the winding connection part 101 is more preferably 150% or less with respect to the outer diameter W2 of the brush sliding part 102. Thereby, it can prevent that the outer diameter W1 of the coil | winding connection part 101 increases too much. As a result, the centrifugal force that acts on the commutator piece 110 when the commutator 100 rotates can be kept small.
　巻線接続部１０１の外径Ｗ１は、フック１１１ａに施される巻線の線径により決定される。ブラシ摺動部１０２の外径Ｗ２は、整流子片１１０の枚数、整流子片１１０の幅、および、給電ブラシ（不図示）の幅により決定される。 The outer diameter W1 of the winding connection portion 101 is determined by the wire diameter of the winding applied to the hook 111a. The outer diameter W2 of the brush sliding portion 102 is determined by the number of commutator pieces 110, the width of the commutator pieces 110, and the width of a power supply brush (not shown).
　各整流子片１１０は、巻線接続部１０１を構成するライザー部分１１１と、ブラシ摺動部１０２を構成する平坦部分１１２との中間部分１１３が、階段状に折り曲げられている。これによって、巻線接続部１０１の外径Ｗ１がブラシ摺動部１０２の外径Ｗ２よりも大きい構成を実現している。 In each commutator piece 110, an intermediate portion 113 between a riser portion 111 constituting the winding connection portion 101 and a flat portion 112 constituting the brush sliding portion 102 is bent in a step shape. This realizes a configuration in which the outer diameter W1 of the winding connection portion 101 is larger than the outer diameter W2 of the brush sliding portion 102.
　なお、中間部分１１３が階段状に折り曲げられた複数の整流子片１１０は、例えば、巻線接続部１０１になる部分とブラシ摺動部１０２になる部分の外径が異なるように絞り加工された円筒形の金属部材を、さらに加工することにより、作成することができる。また、各整流子片１１０の中間部分１１３を個別に階段状に折り曲げて作成することもできる。 The plurality of commutator pieces 110 in which the intermediate portion 113 is bent in a staircase shape are drawn so that, for example, the outer diameter of the portion that becomes the winding connection portion 101 and the portion that becomes the brush sliding portion 102 are different. A cylindrical metal member can be formed by further processing. Alternatively, the intermediate portion 113 of each commutator piece 110 can be individually bent in a step shape.
　各整流子片１１０は、平坦部分１１２の肉厚が、ライザー部分１１１の肉厚に対して１００％以上１１０％以内の範囲である。平坦部分１１２の肉厚が、ライザー部分１１１の肉厚に対して１００％以上１１０％以内の範囲であれば、ブラシ摺動部１０２の外径Ｗ２をより小さくすることができる。これにより、ブラシ摺動部１０２における給電ブラシとの接触面１１４の周速を下げることができる。その結果、接触摩擦を小さくしてブラシ摺動損の発生を抑えることができる。 In each commutator piece 110, the thickness of the flat portion 112 is in the range of 100% to 110% with respect to the thickness of the riser portion 111. If the thickness of the flat portion 112 is in the range of 100% to 110% with respect to the thickness of the riser portion 111, the outer diameter W2 of the brush sliding portion 102 can be further reduced. Thereby, the peripheral speed of the contact surface 114 with the electric power supply brush in the brush sliding part 102 can be lowered | hung. As a result, the contact friction can be reduced and the occurrence of brush sliding loss can be suppressed.
　各整流子片１１０には、樹氷状の侵食部１１６を有する深さが０μｍより大きく１０μｍ以下の侵食層１１７が、支持部材１２０との接触面１１５に、整流子１００の全周に亘って形成されている。侵食層１１７を整流子１００の全周に亘って形成することで、各整流子片１１０と支持部材１２０との接合強度をより高くすることができる。また、侵食層１１７を比較的容易に形成することもできる。なお、侵食層１１７は、整流子１００の全周に亘って形成されていなくてもよく、周方向における一部に形成されていてもよい。侵食層１１７は、酸エッチングを施すことにより形成できる。侵食層１１７の深さを０μｍより大きく１０μｍ以下の範囲とすれば、強度を保った状態で侵食層１１７が形成できる。 In each commutator piece 110, an erosion layer 117 having a depth of frost-like eroded portion 116 and having a depth greater than 0 μm and 10 μm or less is formed on the contact surface 115 with the support member 120 over the entire circumference of the commutator 100. Has been. By forming the erosion layer 117 over the entire circumference of the commutator 100, the bonding strength between each commutator piece 110 and the support member 120 can be further increased. In addition, the erosion layer 117 can be formed relatively easily. Note that the erosion layer 117 may not be formed over the entire circumference of the commutator 100, and may be formed in a part in the circumferential direction. The erosion layer 117 can be formed by performing acid etching. If the depth of the erosion layer 117 is set in a range of greater than 0 μm and 10 μm or less, the erosion layer 117 can be formed while maintaining the strength.
　つまり、侵食層１１７を形成する場合、整流子片１１０を構成する部分が、エッチングにより、接触面１１５より順次、除去される。除去された整流子片１１０が樹氷状に発展する。よって、深く侵食層１１７を発展させる場合、除去される整流子片１１０の開口部分も広くなる。整流子片１１０の開口部分が過度に広がり過ぎると、侵食層１１７は樹氷状を保つことができず、単なる穴になる。穴が形成された整流子片１１０には、適切に形成された浸食層１１７ほどの保持力を期待できない。 That is, when the erosion layer 117 is formed, the portion constituting the commutator piece 110 is sequentially removed from the contact surface 115 by etching. The removed commutator piece 110 develops into a tree ice shape. Therefore, when the erosion layer 117 is developed deeply, the opening portion of the commutator piece 110 to be removed is also widened. If the opening portion of the commutator piece 110 is excessively widened, the erosion layer 117 cannot be kept in the form of frost and becomes a simple hole. The commutator piece 110 in which the holes are formed cannot be expected to have a holding force as high as the appropriately formed erosion layer 117.
　侵食層１１７の侵食部１１６内には、支持部材１２０の材料である樹脂１２１が複雑に入り込んでいる。侵食部１１６とは、樹脂１２１が整流子片１１０に入り込んでいる部分である。侵食層１１７とは、侵食部１１６が整流子片１１０内に形成されている層のことである。樹脂１２１が侵食部１１６内に入り込むことによって、各整流子片１１０と支持部材１２０とは高い接合強度で接合されている。そのため、各整流子片１１０にアンカーを設ける必要がなく、アンカーによって各整流子片１１０のライザー部分１１１および平坦部分１１２の肉厚が厚くなることもない。したがって、整流子１００回転時に整流子片１１０に働く遠心力を小さく抑えることができる。また、各整流子片１１０の形状が複雑にならない。このため、整流子１００の高コスト化を抑えることもできる。 In the erosion portion 116 of the erosion layer 117, the resin 121 that is the material of the support member 120 enters in a complicated manner. The erosion part 116 is a part where the resin 121 enters the commutator piece 110. The erosion layer 117 is a layer in which the erosion portion 116 is formed in the commutator piece 110. As the resin 121 enters the eroded portion 116, each commutator piece 110 and the support member 120 are bonded with high bonding strength. Therefore, it is not necessary to provide an anchor for each commutator piece 110, and the thickness of the riser portion 111 and the flat portion 112 of each commutator piece 110 is not increased by the anchor. Therefore, the centrifugal force acting on the commutator piece 110 when the commutator 100 rotates can be suppressed to a small value. Further, the shape of each commutator piece 110 is not complicated. For this reason, the cost increase of the commutator 100 can also be suppressed.
　以上のような整流子１００は、例えば、次のようにして製造することができる。 The commutator 100 as described above can be manufactured, for example, as follows.
　まず、巻線接続部１０１になる部分とブラシ摺動部１０２になる部分の外径が異なるように絞り加工された円筒形の金属部材を用意する。 First, a cylindrical metal member that is drawn so that the outer diameters of the portion that becomes the winding connection portion 101 and the portion that becomes the brush sliding portion 102 are different is prepared.
　その金属部材を金型に投入する前に、整流子片１１０における支持部材１２０との接触面１１５となる部分の全体に、樹氷状の侵食部１１６を有する侵食層１１７を形成するための処理を施す。具体的には、整流子片１１０を化学エッチング剤に浸漬させる。化学エッチング剤に浸漬された整流子片１１０の表面には、化学エッチング剤による侵食が生じるため、微小空間が生成される。化学エッチング剤により適度に粗された微小空間を、侵食部１１６という。侵食部１１６の形状は、「樹枝状」であってもよい。 Before the metal member is put into the mold, a process for forming an erosion layer 117 having a frost-like erosion portion 116 on the entire portion of the commutator piece 110 that becomes the contact surface 115 with the support member 120 is performed. Apply. Specifically, the commutator piece 110 is immersed in a chemical etching agent. Since the surface of the commutator piece 110 immersed in the chemical etching agent is eroded by the chemical etching agent, a minute space is generated. The micro space moderately roughened by the chemical etching agent is referred to as the eroded portion 116. The shape of the eroded portion 116 may be “dendritic”.
　その後、金属部材を金型に投入し、樹脂にてモールド加工を行う。その際に、固化前の樹脂１２１が侵食層１１７の侵食部１１６内に複雑に入り込む。これによって、各整流子片１１０と支持部材１２０とが接合され、実施の形態に係る整流子１００が完成する。 After that, the metal member is put into the mold and molded with resin. At that time, the resin 121 before solidification enters into the erosion portion 116 of the erosion layer 117 in a complicated manner. Thereby, each commutator piece 110 and the support member 120 are joined, and the commutator 100 according to the embodiment is completed.
　実施の形態に係る整流子１００は、侵食層１１７の侵食部１１６内に固化前の樹脂１２１が複雑に入り込むことで、各整流子片１１０と支持部材１２０とが接合されている。そのため、各整流子片１１０にアンカーを設けなくても、各整流子片１１０と支持部材１２０とを高い接合強度で接合することができる。 In the commutator 100 according to the embodiment, each commutator piece 110 and the support member 120 are joined by the resin 121 before solidification entering the erosion portion 116 of the erosion layer 117 in a complicated manner. Therefore, even if each commutator piece 110 is not provided with an anchor, each commutator piece 110 and the support member 120 can be joined with high joining strength.
　なお、整流子片１１０に侵食層１１７を形成し、さらにアンカーも設ける構成としてもよい。その場合も、各整流子片１１０と支持部材１２０との接合強度を高めることができるため、例えばアンカーを小さくしたり、アンカーの数を減らしたりすることができる。 In addition, it is good also as a structure which forms the erosion layer 117 in the commutator piece 110, and also provides an anchor. Also in this case, since the joining strength between each commutator piece 110 and the support member 120 can be increased, for example, the anchor can be reduced or the number of anchors can be reduced.
　（整流子電動機）
　図２は、実施の形態に係る整流子電動機を備えた電動送風機１の模式図である。図２に示すように、電動送風機１には、一方が閉塞しその反対方向が開口した円筒状のフレーム２内に、整流子電動機が設けられている。整流子電動機は、界磁３と、電機子４とから構成されている。界磁３は、その筒内に対向する一対の突極が形成され方形筒状を呈する界磁鉄心５と、突極に巻回される界磁巻線６とを備えている。電機子４は、その突極に挟まれるように、筒内に回転自在に設けられている。 (Commutator motor)
Drawing 2 is a mimetic diagram of electric blower 1 provided with the commutator electric motor concerning an embodiment. As shown in FIG. 2, the electric blower 1 is provided with a commutator motor in a cylindrical frame 2 that is closed on one side and opened in the opposite direction. The commutator motor is composed of a field 3 and an armature 4. The field magnet 3 includes a field iron core 5 having a square cylindrical shape with a pair of salient poles facing each other in the cylinder, and a field winding 6 wound around the salient pole. The armature 4 is rotatably provided in the cylinder so as to be sandwiched between the salient poles.
　図３は、実施の形態に係る整流子電動機の電機子４の斜視図である。図３に示すように、電機子４は、電機子鉄心２１と、電機子巻線２２と、整流子１００と、回転軸９を有する。 FIG. 3 is a perspective view of the armature 4 of the commutator motor according to the embodiment. As shown in FIG. 3, the armature 4 includes an armature core 21, an armature winding 22, a commutator 100, and a rotating shaft 9.
　以上のように、本実施の形態の整流子１００は、巻線接続部１０１およびブラシ摺動部１０２を構成する整流子片１１０と、整流子片１１０と接触した状態で整流子片１１０を支持する支持部材１２０とを備える。整流子片１１０における支持部材１２０との接触面１１５の少なくとも一部に、樹脂が整流子片１１０に入り込んで形成される侵食部１１６を有する深さが０μｍより大きく１０μｍ以下の侵食層１１７が形成されている。 As described above, the commutator 100 according to the present embodiment supports the commutator piece 110 while being in contact with the commutator piece 110 constituting the winding connection portion 101 and the brush sliding portion 102. The supporting member 120 is provided. An erosion layer 117 having a depth greater than 0 μm and less than or equal to 10 μm is formed on at least a part of the contact surface 115 of the commutator piece 110 with the support member 120 and having an erosion portion 116 formed by resin entering the commutator piece 110. Has been.
　これにより、整流子片１１０と支持部材１２０との接合強度が高い。 Thereby, the bonding strength between the commutator piece 110 and the support member 120 is high.
　また、侵食部１１６の形状が樹氷状である、ことが好ましい。 In addition, it is preferable that the shape of the eroded portion 116 is a tree ice shape.
　また、巻線接続部１０１とブラシ摺動部１０２の外径が異なる、ことが好ましい。 Moreover, it is preferable that the outer diameters of the winding connection part 101 and the brush sliding part 102 are different.
　また、巻線接続部１０１の外径は、ブラシ摺動部１０２の外径に対して１２０％以上１５０％以下である、ことが好ましい。 Further, the outer diameter of the winding connection part 101 is preferably 120% or more and 150% or less with respect to the outer diameter of the brush sliding part 102.
　また、整流子片１１０は、巻線接続部１０１を構成する部分と、ブラシ摺動部１０２を構成する部分との中間部分１１３が階段状に折り曲げられている、ことが好ましい。 Further, it is preferable that the commutator piece 110 has an intermediate portion 113 between a portion constituting the winding connection portion 101 and a portion constituting the brush sliding portion 102 bent in a step shape.
　また、整流子片１１０は、巻線接続部１０１とブラシ摺動部１０２の外径が異なるように絞り加工された円筒形の部材をさらに加工してなる、ものでもよい。 Further, the commutator piece 110 may be formed by further processing a cylindrical member that has been drawn so that the outer diameters of the winding connection portion 101 and the brush sliding portion 102 are different.
　また、整流子片１１０は、ブラシ摺動部１０２を構成する部分の肉厚が、巻線接続部１０１を構成する部分の肉厚に対して１００％以上１１０％以内であることが好ましい。 Further, in the commutator piece 110, the thickness of the portion constituting the brush sliding portion 102 is preferably 100% or more and 110% or less with respect to the thickness of the portion constituting the winding connection portion 101.
　また、本実施の形態の整流子電動機は、整流子１００を備えてもよい。 Further, the commutator motor of this embodiment may include the commutator 100.
　（変形例）
　図４は、変形例に係る整流子を示す半断面図である。図４に示すように、変形例に係る整流子２００は、各整流子片２１０における支持部材２２０との接触面２１５に凹凸形状が施されている。この点において、変形例に係る整流子２００は、上記実施の形態に係る整流子１００と相違する。その他の構成については、基本的に上記実施の形態に係る整流子１００と実質的に同様である。したがって、上記相違点についてのみ詳細に説明し、その他の構成については説明を簡略若しくは省略する。 (Modification)
FIG. 4 is a half sectional view showing a commutator according to a modification. As shown in FIG. 4, in the commutator 200 according to the modification, the contact surface 215 with the support member 220 in each commutator piece 210 is provided with an uneven shape. In this respect, the commutator 200 according to the modification is different from the commutator 100 according to the above embodiment. Other configurations are basically the same as those of the commutator 100 according to the above embodiment. Therefore, only the difference will be described in detail, and the description of other configurations will be simplified or omitted.
　変形例に係る整流子２００は、複数の整流子片２１０と、それら整流子片２１０を支持する支持部材２２０とを備える。各整流子片２１０は、ライザー部分２１１、平坦部分２１２、中間部分２１３、および、給電ブラシとの接触面２１４を有する。各ライザー部分２１１には、巻線（不図示）を巻回するためのフック２１１ａが形成されている。そして、巻線接続部２０１の外径は、ブラシ摺動部２０２の外径よりも小さい。 The commutator 200 according to the modification includes a plurality of commutator pieces 210 and a support member 220 that supports the commutator pieces 210. Each commutator piece 210 has a riser portion 211, a flat portion 212, an intermediate portion 213, and a contact surface 214 with the power supply brush. Each riser portion 211 is formed with a hook 211a for winding a winding (not shown). The outer diameter of the winding connection portion 201 is smaller than the outer diameter of the brush sliding portion 202.
　各整流子片２１０は、支持部材２２０との接触面２１５の一部である平坦部分２１２の表面に凹凸形状が施されている。また、各整流子片２１０は、支持部材２２０との接触面２１５の全体に、樹氷状の侵食部（不図示）を有する侵食層２１７が形成されている。これにより、凹凸形状が施されている範囲において、各整流子片２１０と支持部材２２０との接触面積が増加するため、侵食層２１７が形成されている範囲を広げることができる。したがって、各整流子片２１０と支持部材２２０との接合強度をより高くすることができる。 As for each commutator piece 210, the uneven | corrugated shape is given to the surface of the flat part 212 which is a part of contact surface 215 with the supporting member 220. FIG. Each commutator piece 210 has an erosion layer 217 having a frosted erosion portion (not shown) on the entire contact surface 215 with the support member 220. Thereby, since the contact area of each commutator piece 210 and the support member 220 increases in the range where the concavo-convex shape is given, the range in which the erosion layer 217 is formed can be expanded. Therefore, the bonding strength between each commutator piece 210 and the support member 220 can be further increased.
　なお、凹凸形状は、平坦部分２１２の表面に限らず、ライザー部分２１１の表面に施してもよいし、中間部分２１３の表面に施してもよいし、支持部材２２０との接触面２１５の全体に施してもよい。 The uneven shape is not limited to the surface of the flat portion 212 but may be applied to the surface of the riser portion 211, the surface of the intermediate portion 213, or the entire contact surface 215 with the support member 220. You may give it.
　本開示に係る整流子および整流子電動機は、家庭用掃除機などの電気機器用として広く利用できる。 The commutator and commutator motor according to the present disclosure can be widely used for electrical equipment such as a household vacuum cleaner.
　１　　電動送風機
　２　　フレーム
　３　　界磁
　４　　電機子
　５　　界磁鉄心
　６　　界磁巻線
　９　　回転軸
　２１　　電機子鉄心
　２２　　電機子巻線
　１００，２００　　整流子
　１０１，２０１　　巻線接続部
　１０２，２０２　　ブラシ摺動部
　１１０，２１０　　整流子片
　１１１，２１１　　ライザー部分
　１１１ａ，２１１ａ　　フック
　１１２，２１２　　平坦部分
　１１３，２１３　　中間部分
　１１４，２１４　　接触面
　１１５，２１５　　接触面
　１１６　　侵食部
　１１７，２１７　　侵食層
　１２０，２２０　　支持部材
　１２１　　樹脂
　Ｗ１　　巻線接続部の外径
　Ｗ２　　ブラシ摺動部の外径 DESCRIPTION OF SYMBOLS 1 Electric blower 2 Frame 3 Field 4 Armature 5 Field iron core 6 Field winding 9 Rotating shaft 21 Armature core 22 Armature winding 100,200 Commutator 101,201 Winding connection part 102,202 Brush sliding Part 110, 210 Commutator piece 111, 211 Riser part 111a, 211a Hook 112, 212 Flat part 113, 213 Middle part 114, 214 Contact surface 115, 215 Contact surface 116 Erosion part 117, 217 Erosion layer 120, 220 Support member 121 Resin W1 Outer diameter of winding connection W2 Outer diameter of brush sliding part

Claims (9)

  1. 巻線接続部およびブラシ摺動部を構成する整流子片と、
    前記整流子片と接触した状態で前記整流子片を支持する支持部材とを備え、
    前記整流子片における前記支持部材との接触面の少なくとも一部に、樹脂が整流子片に入り込んで形成される侵食部を有する深さが０μｍより大きく１０μｍ以下の侵食層が形成されている整流子。     Commutator pieces constituting the winding connection part and the brush sliding part;
    A support member that supports the commutator piece in contact with the commutator piece;
    An erosion layer having a depth greater than 0 μm and not greater than 10 μm having an erosion portion formed by resin entering the commutator piece is formed on at least a part of a contact surface of the commutator piece with the support member. Child.
  2. 前記侵食部の形状が樹氷状である請求項１に記載の整流子。 The commutator according to claim 1, wherein a shape of the eroded portion is a tree ice shape.
  3. 前記巻線接続部と前記ブラシ摺動部の外径が異なる請求項１に記載の整流子。 The commutator according to claim 1, wherein outer diameters of the winding connection portion and the brush sliding portion are different.
  4. 前記巻線接続部の外径は、前記ブラシ摺動部の外径に対して１２０％以上１５０％以下である請求項３に記載の整流子。 The commutator according to claim 3, wherein an outer diameter of the winding connection portion is 120% or more and 150% or less with respect to an outer diameter of the brush sliding portion.
  5. 前記整流子片は、前記巻線接続部を構成する部分と、前記ブラシ摺動部を構成する部分との中間部分が階段状に折り曲げられている請求項１に記載の整流子。 The commutator according to claim 1, wherein the commutator piece is bent in a stepped manner at an intermediate portion between a portion constituting the winding connection portion and a portion constituting the brush sliding portion.
  6. 前記整流子片は、前記巻線接続部と前記ブラシ摺動部の外径が異なるように絞り加工された円筒形の部材をさらに加工してなる請求項１に記載の整流子。 The commutator according to claim 1, wherein the commutator piece is formed by further processing a cylindrical member that is drawn so that the outer diameters of the winding connection portion and the brush sliding portion are different.
  7. 前記整流子片は、前記ブラシ摺動部を構成する部分の肉厚が、前記巻線接続部を構成する部分の肉厚に対して１００％以上１１０％以内の範囲である請求項１に記載の整流子。 2. The commutator piece has a thickness of a portion constituting the brush sliding portion in a range of 100% to 110% with respect to a thickness of a portion constituting the winding connection portion. Commutator.
  8. 前記整流子片は、前記支持部材との接触面の少なくとも一部に凹凸形状が施されている請求項１に記載の整流子。 The commutator according to claim 1, wherein the commutator piece has an uneven shape on at least a part of a contact surface with the support member.
  9. 請求項１に記載の整流子を備える
    整流子電動機。     A commutator motor comprising the commutator according to claim 1.
PCT/JP2017/025089 2016-09-09 2017-07-10 Commutator and commutator motor WO2018047459A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0819223A (en) * 1994-06-24 1996-01-19 Jeco Co Ltd Manufacturing method of motor commutator
JPH08322206A (en) * 1995-05-26 1996-12-03 Matsushita Electric Ind Co Ltd Commutator and commutator motor
JPH09182382A (en) * 1995-12-25 1997-07-11 Matsushita Electric Ind Co Ltd Commutator, manufacture of the same and commutator motor
JP2002051506A (en) * 2000-08-02 2002-02-15 Hitachi Chem Co Ltd Commutator for motor, method of manufacturing motor and commutator for motor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325367B1 (en) * 1988-01-19 1994-10-26 Johnson Electric S.A. Assembled commutator for an electric motor
CH698300B1 (en) * 2006-01-24 2009-07-15 Alstom Technology Ltd Stator winding of a rotating electric machine and a method for manufacturing such a stator winding.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0819223A (en) * 1994-06-24 1996-01-19 Jeco Co Ltd Manufacturing method of motor commutator
JPH08322206A (en) * 1995-05-26 1996-12-03 Matsushita Electric Ind Co Ltd Commutator and commutator motor
JPH09182382A (en) * 1995-12-25 1997-07-11 Matsushita Electric Ind Co Ltd Commutator, manufacture of the same and commutator motor
JP2002051506A (en) * 2000-08-02 2002-02-15 Hitachi Chem Co Ltd Commutator for motor, method of manufacturing motor and commutator for motor

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