TWI536713B - Axial clearance type rotary motor - Google Patents
Axial clearance type rotary motor Download PDFInfo
- Publication number
- TWI536713B TWI536713B TW103144777A TW103144777A TWI536713B TW I536713 B TWI536713 B TW I536713B TW 103144777 A TW103144777 A TW 103144777A TW 103144777 A TW103144777 A TW 103144777A TW I536713 B TWI536713 B TW I536713B
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- Prior art keywords
- core
- gap type
- electric machine
- axial flow
- type rotary
- Prior art date
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- 229910052751 metal Inorganic materials 0.000 claims description 37
- 239000002184 metal Substances 0.000 claims description 37
- 238000000465 moulding Methods 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000004512 die casting Methods 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000004804 winding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/04—Details of the magnetic circuit characterised by the material used for insulating the magnetic circuit or parts thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
本發明有關軸流間隙型的旋轉電機。 The present invention relates to an axial flow gap type rotary electric machine.
軸流間隙型的旋轉電機中，於旋轉軸的軸方向介隔著間隙固定件與旋轉件對向。特別是，在固定件鐵心部分設有槽之軸流間隙型的旋轉電機中，因為槽的影響旋轉件鐵損變大。為此，作為旋轉件鐵心，薄板狀的磁性體係使用層積在與主磁通正交的方向的旋轉件鐵心。作為有關這樣的旋轉件鐵心的技術，記載於專利文獻1的技術是廣為人知的。 In the axial gap type rotary electric machine, the gap fixing member and the rotating member are opposed to each other in the axial direction of the rotating shaft. In particular, in the rotary electric machine of the axial flow gap type in which the stator core portion is provided with the groove, the iron loss of the rotary member becomes large due to the influence of the groove. For this reason, as the rotating core, a thin plate-shaped magnetic system uses a rotating core which is laminated in a direction orthogonal to the main magnetic flux. The technique described in Patent Document 1 is widely known as a technique for such a rotor core.
本技術中，為了減低鐵損提升旋轉電機的效率，使用把薄帶狀(帶狀)的磁性體捲繞成渦卷狀所形成的旋轉件卷鐵心。更進一步，旋轉件卷鐵心及磁鐵被配置在非磁性的補強框體內，經由這些構件藉由乃是絕緣材料之樹脂被模塑而一體化的方式構成旋轉件。 In the present technique, in order to reduce the iron loss and improve the efficiency of the rotary electric machine, a rotating core of a rotating piece formed by winding a thin strip-shaped (ribbon) magnetic body into a spiral shape is used. Further, the rotating core and the magnet are disposed in a non-magnetic reinforcing frame, and the rotating member is formed by molding and integrating the resin of the insulating material.
[專利文獻1]日本特開2013-90487號專利公報 [Patent Document 1] Japanese Patent Laid-Open Publication No. 2013-90487
軸流間隙型旋轉電機中，保持在對向的旋轉件表面與固定件表面之間的空隙(間隙)為均一是有必要。相對於此，上述先前技術中，樹脂模塑的厚度變動的緣故，於旋轉電機組裝時，難以調整空隙。為此，製造成本變高。而且，上述先前技術中，因為樹脂模塑難以提升旋轉件的強度，難以旋轉電機高速化。 In the axial gap type rotating electric machine, it is necessary to keep the gap (gap) between the surface of the opposing rotating member and the surface of the fixing member uniform. On the other hand, in the above prior art, the thickness of the resin molding fluctuates, and it is difficult to adjust the gap at the time of assembly of the rotary electric machine. For this reason, the manufacturing cost becomes high. Further, in the above prior art, since it is difficult to increase the strength of the rotary member by resin molding, it is difficult to speed up the rotary motor.
在此，本發明提供一種軸流間隙型旋轉電機，係可以容易調整旋轉件與固定件之間的空隙且可以提升旋轉件的強度。 Here, the present invention provides an axial flow gap type rotating electric machine in which the gap between the rotating member and the fixing member can be easily adjusted and the strength of the rotating member can be improved.
為了解決上述課題，本發明的軸流間隙型旋轉電機，具備：旋轉件、以及沿旋轉軸的方向介隔著空隙與旋轉件對向之固定件；其特徵為：旋轉件具有：鐵心、固定軸且同時固定鐵心的軛、以及連接鐵心的永久磁鐵；軛是利用把鐵心中的除了鐵心與永久磁鐵的連接部以外的部分予以模塑之模鑄金屬所構成。 In order to solve the above problems, the axial flow gap type rotating electric machine according to the present invention includes: a rotating member; and a fixing member that faces the rotating member via a gap in a direction of the rotating shaft; and the rotating member has a core and a fixed portion. The yoke that fixes the core at the same time and the permanent magnet that connects the core; the yoke is formed by molding a metal in which a portion other than the joint between the core and the permanent magnet is molded in the core.
經由軛是利用把鐵心中的除了與永久磁鐵的 連接部以外的部分予以模塑之模鑄金屬所構成之方式，提升旋轉件的尺寸精度的同時，提升旋轉件的強度。從而，旋轉件與固定件之間的空隙的調整變得容易，且可以高速化旋轉電機。 Via the yoke is used to remove the iron core in addition to the permanent magnet The portion of the joint other than the joint portion is formed by molding the molded metal, and the dimensional accuracy of the rotary member is improved, and the strength of the rotary member is improved. Thereby, the adjustment of the gap between the rotary member and the fixed member becomes easy, and the rotary electric machine can be speeded up.
上述以外的課題、構成及效果，經由以下實施方式的說明而明瞭。 The problems, configurations, and effects other than the above will be apparent from the description of the embodiments below.
1‧‧‧旋轉件 1‧‧‧Rotating parts
2‧‧‧固定件 2‧‧‧Fixed parts
3‧‧‧永久磁鐵 3‧‧‧ permanent magnet
4‧‧‧旋轉件軛 4‧‧‧Rotating yoke
5‧‧‧軸 5‧‧‧Axis
6‧‧‧旋轉件鐵心 6‧‧‧Rotating iron core
7‧‧‧結構構件 7‧‧‧Structural components
30、31‧‧‧金屬模具治具 30, 31‧‧‧metal mold fixture
〔圖1〕為表示本發明的實施例1之軸流間隙型馬達之整體構成的概略之立體圖。 Fig. 1 is a schematic perspective view showing an overall configuration of an axial flow gap type motor according to a first embodiment of the present invention.
〔圖2〕表示旋轉件的構造。 Fig. 2 shows the structure of the rotary member.
〔圖3〕表示渦卷狀的旋轉件鐵心。 Fig. 3 shows a spiral rotor core.
〔圖4〕表示被固定在旋轉件軛之旋轉件鐵心。 Fig. 4 shows the rotor core fixed to the rotor yoke.
〔圖5〕表示旋轉件鐵心之變形例。 Fig. 5 shows a modification of the rotor core.
〔圖6〕表示連接了永久磁鐵之旋轉件。 [Fig. 6] shows a rotary member to which a permanent magnet is connected.
〔圖7〕表示本發明的實施例2之軸流間隙型馬達的旋轉件鐵心的一部分及尚未載置永久磁鐵的旋轉件。 Fig. 7 is a view showing a part of a rotor core of an axial flow gap type motor according to a second embodiment of the present invention and a rotary member on which a permanent magnet is not placed.
〔圖8〕表示尚未載置本發明的實施例3之軸流間隙型馬達的永久磁鐵的旋轉件及旋轉件的結構構件。 [Fig. 8] A structural member of a rotor and a rotor of a permanent magnet in which the axial gap type motor of the third embodiment of the present invention is not mounted.
〔圖9〕表示尚未載置本發明的實施例4之軸流間隙型馬達的永久磁鐵的旋轉件及旋轉件鐵心的一部分。 [Fig. 9] A part of the rotor and the rotor core of the permanent magnet in which the axial gap type motor of the fourth embodiment of the present invention is not placed.
〔圖10〕表示本發明的實施例5之軸流間隙型馬達的旋轉件的製造方法。 Fig. 10 is a view showing a method of manufacturing a rotary member of an axial flow gap type motor according to a fifth embodiment of the present invention.
以下，使用圖面說明有關本發明之實施例。 Hereinafter, embodiments of the present invention will be described using the drawings.
圖1為表示本發明的實施例1之軸流間隙型旋轉電機之整體構成的概略之立體圖。尚且，本圖所示之旋轉電機為軸流間隙型馬達。 1 is a schematic perspective view showing an overall configuration of an axial flow gap type rotating electric machine according to a first embodiment of the present invention. Moreover, the rotating electrical machine shown in this figure is an axial flow gap type motor.
本實施例中，2個圓盤狀的旋轉件1係對向配置成磁鐵面彼此面對面。成為馬達的旋轉軸之軸5，係藉由公知的方法例如熱套配合被固定在各旋轉件1，使其通過各旋轉件1的中心部。在2個旋轉件1之間，旋轉軸方向上，配置有介隔著空隙(氣隙)與各旋轉件1對向之固定件2。軸5係插通在固定件2的中心部成可以旋轉。 In the present embodiment, the two disk-shaped rotating members 1 are arranged to face each other such that the magnet faces face each other. The shaft 5 that becomes the rotating shaft of the motor is fixed to each of the rotating members 1 by a known method such as a heat jacketing, and passes through the center portion of each of the rotating members 1. Between the two rotors 1, a fixing member 2 opposed to each of the rotors 1 via a gap (air gap) is disposed in the direction of the rotation axis. The shaft 5 is inserted into the center of the fixing member 2 so as to be rotatable.
固定件2省略詳細的圖示，是利用具有複數槽之固定件鐵心、以及位置在各槽內且捲繞在被安裝到固定件鐵心的絕緣線圈架上之固定件繞線所構成。如此，利用固定件鐵心、絕緣線圈架及固定件繞線所構成的固定件2，係與旋轉件1一起被收納在圓筒狀的罩殼20內，且經由藉由罩殼20與樹脂一體化模塑的方式被固定在罩殼20。 The fixing member 2 is omitted from the detailed illustration, and is constructed by using a fixing member core having a plurality of grooves and a fixing member winding which is positioned in each groove and wound around an insulating bobbin mounted to the fixing member core. In this manner, the fixing member 2 formed by the fixing member core, the insulating bobbin, and the fixing member winding is housed in the cylindrical casing 20 together with the rotating member 1, and is integrated with the resin via the casing 20. The molding is fixed to the casing 20.
圖2表示旋轉件的構造。尚且，在本圖中，為了容易理解構造，表示各部分離的狀態。 Figure 2 shows the construction of the rotary member. Further, in the figure, in order to facilitate understanding of the structure, the state in which the respective parts are separated is shown.
如圖2所示，旋轉件1，具備：把矽鋼板等的 電磁鋼板的薄帶(帶)捲繞成渦卷狀而構成，具有圓環狀的平面形狀之旋轉件鐵心6。旋轉件鐵心6中，圓環狀的徑方向上，層積電磁鋼板之薄帶。經此，隨著在起因於固定件2中的槽形狀的空隙的磁導的變化，藉由空間諧波可以減低發生在旋轉件鐵心內的鐵損。尚且，取代電磁鋼板，適用有非晶態磁性材料，也可減低鐵損。 As shown in Fig. 2, the rotary member 1 is provided with a steel plate or the like. The thin strip (belt) of the electromagnetic steel sheet is wound into a spiral shape, and has a rotor-shaped core 6 having an annular planar shape. In the rotor core 6, a thin strip of electromagnetic steel sheets is laminated in the radial direction of the ring shape. As a result, the iron loss occurring in the rotor core can be reduced by the spatial harmonics with the change in the permeability of the gap due to the groove shape in the fixture 2. Moreover, instead of the electromagnetic steel sheet, an amorphous magnetic material is applied, and the iron loss can also be reduced.
永久磁鐵3被配置有與旋轉件1的極數相等的個數，在本實施例為4個永久磁鐵3，且固定地連接在旋轉件鐵心6的圓環狀平面上。旋轉件1之極數份的永久磁鐵3，為分別具有略扇狀的平面形狀之板狀的磁鐵，配置在旋轉件鐵心的圓環狀平面上，成圓環狀。旋轉件鐵心6與永久磁鐵3，係利用樹脂等的接著構件來接著。尚且，作為永久磁鐵3，可以適用有稀土類磁鐵或鐵氧磁體等。而且，永久磁鐵不限於本實施例般分割成複數個，也可用被感磁有複數極之環狀的一個磁鐵。 The permanent magnets 3 are disposed in the same number as the number of poles of the rotary member 1, and are four permanent magnets 3 in this embodiment, and are fixedly coupled to the annular plane of the rotor core 6. The permanent magnets 3 of the pole pieces of the rotary member 1 are plate-shaped magnets each having a substantially fan-shaped planar shape, and are arranged in an annular shape on the annular flat surface of the rotor core. The rotor core 6 and the permanent magnet 3 are followed by a follower member such as resin. Further, as the permanent magnet 3, a rare earth magnet or a ferrite magnet can be applied. Further, the permanent magnet is not limited to a plurality of pieces as in the present embodiment, and a magnet having a ring shape of a plurality of magnetic poles may be used.
旋轉件鐵心6藉由利用模鑄金屬所構成之旋轉件軛4而被保持。旋轉件軛4，係把旋轉件鐵心6中除了與永久磁鐵3的連接部以外的部分、也就是本實施例中與連接永久磁鐵3的平面部相反側的平面部也就是背面側，藉由用模鑄金屬做模塑的方式來構成。接著，經由該模鑄金屬附著在旋轉件鐵心6之前述背面及側面的方式，旋轉件鐵心6被固定在旋轉件軛4。於旋轉件軛4的中心部設有用於讓軸5通過之圓形的孔部。軸5經由熱套配合等，插通到該孔部而被固定在旋轉件軛4。尚且，作為模 鑄金屬，可以適用有鋁合金等的非磁性合金。 The rotor core 6 is held by a rotor yoke 4 formed of a die-cast metal. The rotary yoke 4 is a flat portion on the side opposite to the flat portion connecting the permanent magnet 3 in the portion of the rotor core 6 except the connection portion with the permanent magnet 3, that is, the back side. It is constructed by molding a metal by molding. Next, the rotor core 6 is fixed to the rotor yoke 4 via the mold metal attached to the back surface and the side surface of the rotor core 6. A circular hole portion for passing the shaft 5 is provided at a central portion of the rotor yoke 4. The shaft 5 is inserted into the hole portion via a heat jacket or the like and fixed to the rotor yoke 4. Still, as a model The cast metal can be applied to a non-magnetic alloy such as an aluminum alloy.
圖3表示渦卷狀的旋轉件鐵心。已捲成渦卷狀的電磁鋼板的薄帶之捲繞起始部與捲繞結束部係經由熔接接合成旋轉件鐵心本體。經此，保持成渦卷狀之形狀。尚且，本實施例中，所謂捲繞起始部，乃是位置在旋轉件鐵心6的中央部的孔部的內壁部之薄帶端部，所謂捲繞結束，乃是位置在旋轉件鐵心6的最外周圍部的側面部之薄帶端部。為了確實保持渦卷狀之形狀，旋轉件鐵心6亦可被樹脂模塑。此時，樹脂的表面比旋轉件鐵心6的層積面A還低。經此，可以防止樹脂影響到固定件與旋轉件之間的間隙尺寸。尚且，製造工程中，樹脂模塑工程在使用高溫的熔融金屬之模鑄工程後實行者較佳。 Fig. 3 shows a spiral-shaped rotating member core. The winding start portion and the winding end portion of the thin strip of the electromagnetic steel sheet which has been wound into a spiral shape are joined to each other by the fusion-welding core body. Thereby, the shape is maintained in a spiral shape. Further, in the present embodiment, the winding start portion is the end portion of the thin portion of the inner wall portion of the hole portion at the center portion of the rotor core 6, and the winding end is the position of the rotating member core. The end of the thin strip at the side portion of the outermost peripheral portion of 6. In order to surely maintain the shape of a spiral shape, the rotary member core 6 can also be molded by a resin. At this time, the surface of the resin is lower than the laminated surface A of the rotor core 6. Thereby, it is possible to prevent the resin from affecting the gap size between the fixing member and the rotating member. Further, in the manufacturing process, the resin molding process is preferably carried out after the molding work using molten metal of high temperature.
圖4表示被固定在旋轉件軛之旋轉件鐵心。利用模鑄金屬所構成的旋轉件軛4，係被覆旋轉件鐵心6的層積面之內即圖中所露出的層積面A的背面側的層積面之整個面、與旋轉件鐵心6的最外周圍側面及最內周側面的同時，並附著到這些所被覆的面。也就是，旋轉件鐵心6中除了配置永久磁鐵3的層積面A的部分，是藉由模鑄金屬被模塑。旋轉件鐵心6被模鑄金屬模塑的緣故，抑制了渦卷狀的旋轉件鐵心6的變形。而且，構成旋轉件軛4的模鑄金屬位置在被層積的薄帶之層間，亦可附著於薄帶。經此，旋轉件鐵心6確實地被固定在固定件軛4。此時，模鑄金屬表面比層積面A低，可以把載置永久磁鐵3的層積面A予以平坦化。 Figure 4 shows the rotating core of the rotating member yoke. The rotor yoke 4 formed of the die-cast metal covers the entire surface of the laminated surface of the back surface side of the laminated surface A exposed in the figure, which is formed by the mold metal, and the rotating core 6 At the same time as the outermost peripheral side and the innermost peripheral side, and attached to these covered faces. That is, the portion of the rotating core 6 other than the laminated surface A on which the permanent magnet 3 is disposed is molded by molding metal. The rotor core 6 is molded by metal molding, and deformation of the spiral rotor core 6 is suppressed. Further, the position of the molding metal constituting the rotary yoke 4 is between the layers of the laminated thin strips, and may be attached to the thin strip. Thereby, the rotor core 6 is surely fixed to the fixture yoke 4. At this time, the surface of the die-cast metal is lower than the laminated surface A, and the laminated surface A on which the permanent magnet 3 is placed can be flattened.
經由如此之旋轉件軛4與旋轉件鐵心6的一體構成，一方面使用捲成渦卷狀的電磁鋼板薄帶的旋轉件鐵心6，同時並提升旋轉件的強度。更進一步，軸5係被固定在利用模鑄金屬所構成之旋轉件軛4的緣故，換言之，介隔著旋轉件軛4，軸5被固定在渦卷狀的旋轉件鐵心6。經此，提升渦卷狀的旋轉件鐵心6與軸5之固定強度。而且，經由利用模鑄金屬所構成之旋轉件軛4，提升有旋轉件的尺寸精度的緣故，可以讓旋轉件與固定件之間的空隙均等。 By the integral configuration of the rotating member yoke 4 and the rotating member core 6, on the one hand, the rotating member core 6 wound into a spiral-shaped electromagnetic steel strip is used, and the strength of the rotating member is increased. Further, the shaft 5 is fixed to the rotor yoke 4 formed of a die-cast metal, in other words, the shaft 5 is fixed to the spiral rotor core 6 via the rotor yoke 4. Thereby, the fixing strength of the spiral rotor core 6 and the shaft 5 is increased. Further, by the use of the rotary yoke 4 formed of the die-cast metal, the dimensional accuracy of the rotary member can be improved, and the gap between the rotary member and the fixed member can be made uniform.
圖5表示旋轉件鐵心之變形例。本變形例，係與圖3的實施例同樣把電磁鋼板薄帶捲成渦卷狀而構成，但與圖3的旋轉件鐵心相異的是，於層積面的徑方向設有溝B。經此，模鑄工程中，已熔融之模鑄金屬可以確實地流入並遍即在收納在金屬模具治具內的旋轉件鐵心的內周側、層間及外周圍側。經此，可以用正確的形狀，且尺寸精度良好地製造旋轉件軛4。 Fig. 5 shows a modification of the rotor core. In the present modification, the electromagnetic steel strip is wound into a spiral shape in the same manner as in the embodiment of Fig. 3. However, unlike the rotor core of Fig. 3, the groove B is provided in the radial direction of the laminated surface. As a result, in the die casting process, the molten mold metal can surely flow into and over the inner peripheral side, the interlayer, and the outer peripheral side of the rotor core housed in the mold jig. Thereby, the rotor yoke 4 can be manufactured with a correct shape and with good dimensional accuracy.
圖6為連接永久磁鐵的旋轉件之立體圖(a)及剖視圖(b)。如圖2所示，板狀的永久磁鐵3被載置在旋轉件鐵心的層積面上，藉由樹脂或接著劑等的接著構件被接著固定。而且，如剖視圖(b)所示，旋轉件軛4，係有關其外周圍部與內周部中，具有段差。也就是說，旋轉件軛4的外周圍部與內周部，係與旋轉件鐵心6的層積面相比其高度為高，為此，被一體化的旋轉件軛4與旋轉件鐵心6，具有把旋轉件鐵心6的層積面作為底面 之凹部。在該凹部內，永久磁鐵3被接著在旋轉件鐵心6的層積面上及與其相接之旋轉件軛4的段差下部上。從而，永久磁鐵3，係藉由旋轉件軛4的段差部，相對於旋轉件鐵心6，被正確定位在指定位置。 Fig. 6 is a perspective view (a) and a cross-sectional view (b) of a rotary member to which a permanent magnet is attached. As shown in Fig. 2, the plate-shaped permanent magnet 3 is placed on the laminated surface of the rotor core, and is then fixed by an adhesive member such as a resin or an adhesive. Further, as shown in the cross-sectional view (b), the rotary yoke 4 has a step difference with respect to the outer peripheral portion and the inner peripheral portion thereof. That is, the outer peripheral portion and the inner peripheral portion of the rotor yoke 4 are higher in height than the laminated surface of the rotor core 6, and for this, the integrated rotary yoke 4 and the rotary member core 6 are Having the laminated surface of the rotating core 6 as the bottom surface The recess. In the recess, the permanent magnet 3 is then placed on the laminated surface of the rotor core 6 and on the lower portion of the step of the rotor yoke 4 that is in contact therewith. Therefore, the permanent magnet 3 is correctly positioned at the designated position with respect to the rotor core 6 by the step portion of the rotor yoke 4.
而且，如圖6(b)所示，於旋轉件軛4的中央部，設有形成通過軸5的孔部之圓筒狀部分。軸5通過該孔部，被固定在旋轉件軛4的圓筒狀部分中。 Further, as shown in FIG. 6(b), a cylindrical portion forming a hole portion passing through the shaft 5 is provided at a central portion of the rotor yoke 4. The shaft 5 is fixed to the cylindrical portion of the rotor yoke 4 through the hole portion.
如上述，根據本實施例，旋轉件鐵心6中除了配置永久磁鐵3的層積面A的部分，是藉由模鑄金屬被模塑，經此，構成旋轉件軛4。接著，經由構成旋轉件軛4的模鑄金屬附著到旋轉件鐵心6的方式，旋轉件鐵心6被固定在旋轉件軛4。經此，提升旋轉件的尺寸精度，同時提升旋轉件的強度。旋轉件的尺寸精度提升的緣故，變成容易調整旋轉件與固定件之間的空隙。從而，軸流間隙型馬達的旋轉可以安定化。更進一步，旋轉件的強度可以提升的緣故，可以高速化軸流間隙型馬達。 As described above, according to the present embodiment, the portion of the rotor core 6 other than the laminated surface A on which the permanent magnets 3 are disposed is molded by the die-cast metal, whereby the rotor yoke 4 is constructed. Next, the rotor core 6 is fixed to the rotor yoke 4 via the manner in which the mold metal constituting the rotor yoke 4 is attached to the rotor core 6. Thereby, the dimensional accuracy of the rotating member is improved, and the strength of the rotating member is improved. As the dimensional accuracy of the rotating member is increased, it becomes easy to adjust the gap between the rotating member and the fixing member. Thereby, the rotation of the axial flow gap type motor can be stabilized. Further, the strength of the rotating member can be increased, and the axial gap type motor can be speeded up.
而且，軸5直接固定到旋轉件軛4的緣故，補強用的構件變成不需要，可以減低零件數目。經由用模鑄金屬模塑旋轉件鐵心的方式構成旋轉件軛，同時使旋轉件鐵心與旋轉件軛一體化。經此，馬達的製造工程可以簡略化、可以減低製造成本。 Further, since the shaft 5 is directly fixed to the rotary yoke 4, the member for reinforcement becomes unnecessary, and the number of parts can be reduced. The rotor yoke is constructed by molding the rotor core with a die-cast metal while integrating the rotor core with the rotor yoke. Through this, the manufacturing process of the motor can be simplified, and the manufacturing cost can be reduced.
圖7表示本發明的實施例2之軸流間隙型馬 達的旋轉件鐵心的一部分(a)及尚未載置永久磁鐵的旋轉件(b)。以下，說明有關與實施例1之相異的點。 Figure 7 shows an axial flow gap type horse of Embodiment 2 of the present invention. A part of the rotating core (a) and a rotating part (b) on which the permanent magnet is not placed. Hereinafter, points different from those of the first embodiment will be described.
如圖7(a)所示，本實施例中的旋轉件鐵心6的一部分，係層積有徑方向上朝向外周圍側長度徐徐變長的電磁鋼板的薄帶而構成，具有略扇形的形狀。已層積的薄帶彼此，係被緊接，藉由熔接等被接合。接著，於圖7(a)所示之略扇形狀的旋轉件鐵心部，為如圖7(b)所示，配置複數個成圓環狀。 As shown in Fig. 7 (a), a part of the rotor core 6 in the present embodiment is formed by laminating a thin strip of an electromagnetic steel sheet whose length in the radial direction gradually increases toward the outer peripheral side, and has a slightly fan-shaped shape. . The laminated thin strips are next to each other and joined by welding or the like. Next, in the slightly fan-shaped rotor core portion shown in Fig. 7(a), as shown in Fig. 7(b), a plurality of annular portions are arranged in an annular shape.
根據本實施例，除了有與實施例1同樣的效果，更加上旋轉件鐵心的佔空因數(space factor)，也就是佔旋轉件鐵心的磁性體之體積比提升的緣故，可以提升軸流間隙型馬達的輸出。而且，圓環狀的旋轉件鐵心係在圓周方向被分割成複數個扇型狀的旋轉件鐵心部的緣故，可以減低渦流損失。 According to the present embodiment, in addition to the same effect as in the first embodiment, the space factor of the upper rotating core, that is, the volume ratio of the magnetic body of the rotating core can be increased, and the axial flow gap can be increased. The output of the motor. Further, the annular rotor core is divided into a plurality of fan-shaped rotor core portions in the circumferential direction, and the eddy current loss can be reduced.
〔圖8〕表示尚未載置本發明的實施例3之軸流間隙型馬達的永久磁鐵的旋轉件(a)、及旋轉件的結構構件(b)。以下，說明有關與實施例1、2相異的點。 Fig. 8 shows a rotor (a) of a permanent magnet of the axial flow gap type motor of the third embodiment of the present invention and a structural member (b) of the rotor. Hereinafter, points different from the first and second embodiments will be described.
如圖8(a)所示，在本實施例的旋轉件中，交互且圓環狀地配置有複數個與圖7同樣的扇型狀之旋轉件鐵心部、及複數個利用粉末磁心等所製成之略扇形且細長的結構構件7。在此，結構構件7可為磁性體、或非磁性體。根據本實施例，除了有與實施例1、2同樣的效 果，更加上利用層積有電磁鋼板薄帶的旋轉件鐵心部與結構構件的個數或大小，可以適宜調整馬達性能。 As shown in Fig. 8 (a), in the rotary member of the present embodiment, a plurality of fan-shaped rotating core portions similar to those of Fig. 7 and a plurality of powder cores are disposed alternately and annularly. A slightly fan-shaped and elongated structural member 7 is formed. Here, the structural member 7 may be a magnetic body or a non-magnetic body. According to the embodiment, the same effects as those of the first and second embodiments are obtained. Further, it is possible to more appropriately adjust the motor performance by using the number or size of the rotor core portion and the structural member in which the electromagnetic steel strip is laminated.
〔圖9〕表示尚未載置本發明的實施例4之軸流間隙型馬達的永久磁鐵的旋轉件(a)、及旋轉件鐵心的一部分(b)。以下，說明有關與實施例1、2、3相異的點。 Fig. 9 shows a rotor (a) of a permanent magnet in which the axial gap type motor of the fourth embodiment of the present invention is not mounted, and a part (b) of the rotor core. Hereinafter, points different from the first, second, and third embodiments will be described.
如圖9(b)所示，本實施例的旋轉件鐵心6的一部分中，細長的略扇狀之電磁鋼板的薄帶被複數片層積在旋轉件鐵心的厚度方向。如此，旋轉件鐵心部係如圖9(a)所示，被配置成圓環狀。 As shown in Fig. 9 (b), in a part of the rotor core 6 of the present embodiment, the thin strip of the elongated slightly fan-shaped electromagnetic steel sheet is laminated in the thickness direction of the rotor core. As described above, the rotor core portion is arranged in an annular shape as shown in FIG. 9(a).
根據本實施例，可以減低渦流損失。 According to this embodiment, the eddy current loss can be reduced.
〔圖10〕表示本發明的實施例5之軸流間隙型馬達的旋轉件的製造方法之概略圖。本圖為表示馬達零件裝入到治具的樣子之立體圖(a)及、立體圖中的AA’線之剖視圖(b)。 Fig. 10 is a schematic view showing a method of manufacturing a rotary member of the axial flow gap type motor according to the fifth embodiment of the present invention. This figure is a perspective view (a) showing a state in which a motor component is loaded into a jig, and a cross-sectional view (b) of a AA' line in a perspective view.
如圖10所示，在收容了圖3所示的旋轉件鐵心6之狀態下，閉合為平板且略圓柱狀的金屬模具治具30與略圓筒狀的金屬模具治具31。在圖10(b)，為了容易看懂圖，把各部予以分後圖示。但是，在閉合了金屬模具治具30及金屬模具治具31的狀態下，金屬模具治具 內的空間，係除了熔融金屬注入口C外，皆被密閉著。而且，旋轉件鐵心6中的成為與永久磁鐵的接合面之層積面，係被緊接到金屬模具治具31。更進一步，旋轉件鐵心6中的成為與永久磁鐵的接合面的背面之層積面、與金屬模具治具31之間，具有空間。 As shown in FIG. 10, in a state in which the rotor core 6 shown in FIG. 3 is housed, the metal mold jig 30 and the substantially cylindrical metal mold jig 31 which are flat and slightly cylindrical are closed. In Fig. 10(b), in order to facilitate the understanding of the drawings, the respective parts are divided and shown. However, in the state in which the metal mold jig 30 and the metal mold jig 31 are closed, the metal mold jig The space inside is sealed except for the molten metal injection port C. Further, the laminated surface of the rotor core 6 which is the joint surface with the permanent magnet is brought into close contact with the mold jig 31. Further, a space is formed between the laminated surface of the back surface of the rotor core 6 which is the joint surface of the permanent magnet and the mold jig 31.
閉合金屬模具治具30、31後，於金屬模具治具內的空間，從熔融金屬注入口C，把已熔融的模鑄金屬，藉由未圖示的壓力裝置一邊賦予壓力一邊進行注入。使已熔融的模鑄金屬冷卻而固化的話，形成利用把與上述般的旋轉件鐵心6的永久磁鐵的接合面之背面側予以模塑之模鑄金屬所構成的旋轉件軛。 After the mold jigs 30 and 31 are closed, the melted mold metal is injected into the space in the mold jig from the molten metal injection port C by a pressure device (not shown). When the molten mold metal is cooled and solidified, a rotor yoke which is formed by molding a metal which is molded on the back side of the joint surface of the permanent magnet of the rotor core 6 as described above is formed.
尚且，於金屬模具治具31的中央部設有圓柱狀的突起。該突起的上表面，也就是在圖10(a)之圓柱狀的突起的左側中的圓形面，係在閉合了金屬模具治具30、31的狀態下，緊接到金屬模具治具30。而且，於該突起的周圍，形成圓環狀的溝。經此，於旋轉件軛形成具有用於通過軸的孔部之圓筒部。 Further, a cylindrical projection is provided at the center of the metal mold jig 31. The upper surface of the projection, that is, the circular surface in the left side of the cylindrical projection of Fig. 10(a), is in close contact with the metal mold jig 30 in a state where the metal mold jigs 30, 31 are closed. . Further, an annular groove is formed around the protrusion. Thereby, a cylindrical portion having a hole portion for passing through the shaft is formed in the rotor yoke.
經由本實施例5之製造方法，可以製造出實施例1的軸流間隙型馬達的旋轉件中的旋轉件鐵心、與旋轉件軛之一體構造體。 According to the manufacturing method of the fifth embodiment, the rotor core and the rotor yoke body structure in the rotor of the axial flow gap type motor of the first embodiment can be manufactured.
尚且，本發明並不限定於前述的實施例，包含有各式各樣的變形例。例如，前述的實施例係為了容易理解地說明本發明而詳細說明，未必會限定在具備已說明之全部的構成。又，有關各實施例的構成的一部分，是可 以追加、刪除、置換其他的構成。 Further, the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments are described in detail for easy understanding of the present invention, and are not necessarily limited to having all of the configurations described above. Moreover, a part of the configuration of each embodiment is Add, delete, and replace other components.
例如，本發明不限於圖1所示之二個旋轉件包挾一個固定件之軸流間隙型馬達，可以適用在具有一個旋轉件與一個固定件者，或二個固定件包挾一個旋轉件者。而且，本發明也可以適用在軸流間隙型發電機。 For example, the present invention is not limited to the axial flow gap type motor in which two rotating members shown in FIG. 1 are included in one fixing member, and may be applied to one rotating member and one fixed member, or two rotating members for one rotating member. By. Moreover, the present invention is also applicable to an axial flow gap type generator.
1‧‧‧旋轉件 1‧‧‧Rotating parts
2‧‧‧固定件 2‧‧‧Fixed parts
3‧‧‧永久磁鐵 3‧‧‧ permanent magnet
4‧‧‧旋轉件軛 4‧‧‧Rotating yoke
5‧‧‧軸 5‧‧‧Axis
20‧‧‧罩殼 20‧‧‧Shell
Claims (12)
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| JP2014088773A JP6360709B2 (en) | 2014-04-23 | 2014-04-23 | Axial gap type rotating electrical machine |
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| TW201541816A TW201541816A (en) | 2015-11-01 |
| TWI536713B true TWI536713B (en) | 2016-06-01 |
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| TW103144777A TWI536713B (en) | 2014-04-23 | 2014-12-22 | Axial clearance type rotary motor |
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| JP2008220128A (en) * | 2007-03-07 | 2008-09-18 | Daikin Ind Ltd | Axial gap type rotary electric machine and compressor |
| JP2010004635A (en) * | 2008-06-19 | 2010-01-07 | Daikin Ind Ltd | Field magneton, manufacturing method therefor, and rotating electrical machine |
| JP2010166751A (en) * | 2009-01-19 | 2010-07-29 | Daikin Ind Ltd | Core and rotating electrical machine |
| JP5027169B2 (en) * | 2009-01-30 | 2012-09-19 | 本田技研工業株式会社 | Axial gap type motor and rotor manufacturing method thereof |
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| TW201541816A (en) | 2015-11-01 |
| WO2015162961A1 (en) | 2015-10-29 |
| JP2015208176A (en) | 2015-11-19 |
| JP6360709B2 (en) | 2018-07-18 |
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