JP2019097311A - Insulation structure creation method for winding junction in stator of rotary electric machine - Google Patents
Insulation structure creation method for winding junction in stator of rotary electric machine Download PDFInfo
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Abstract
Description
本発明は、回転電機のステータの作成方法に係り、特に、ステータにおける巻線接合部の絶縁構造の作成方法に関する。 The present invention relates to a method of producing a stator of a rotating electrical machine, and more particularly to a method of producing an insulating structure of a winding joint in a stator.
従来、回転電機のステータコアのスロットに多数のＵ字状を有する導体セグメントを挿通し、それらを順次接合して形成されたステータコイルが存在する。このステータコイルは、ステータのコイルエンドに導体セグメントの接合部（巻線接合部）を複数有する。各巻線接合部との間、或いは、巻線接合部とステータコアや回転電機のカバー等との間が短絡することを防ぐために、各巻線接合部に絶縁対策が施される。 Conventionally, there are stator coils formed by inserting a number of U-shaped conductor segments into slots of a stator core of a rotating electrical machine and sequentially joining them. The stator coil has a plurality of junctions (winding junctions) of the conductor segments at the coil end of the stator. In order to prevent a short circuit between each winding joint or between the winding joint and the stator core, the cover of the rotary electric machine, or the like, insulation measures are taken for each winding joint.
特許文献１には、環状であって二重（内周側および外周側）に配置された巻線接合部のそれぞれを収容する環状であって二重の２つの室を備えたキャップを用いて、巻線接合部を絶縁する構造が記載されている。キャップの内周側の室には、内周側の巻線接合部が収容され、その室に充填された絶縁性樹脂に内周側の巻線接合部の各々が埋設されることで、それらが絶縁性樹脂で覆われて絶縁されている。また、キャップの外周側の室には、外周側の巻線接合部が収容され、その室に充填された絶縁性樹脂に外周側の巻線接合部の各々が埋設されることで、それらが絶縁性樹脂で覆われて絶縁されている。 In Patent Document 1, using an annular cap provided with two double chambers, each of which is an annular and accommodates each of the double (inner and outer circumferential side) wound joint portions. , A structure for insulating winding joints. A coiled joint portion on the inner peripheral side is accommodated in a chamber on the inner peripheral side of the cap, and each of the coiled joint portions on the inner peripheral side is embedded in the insulating resin filled in the chamber. Is covered and insulated with an insulating resin. In addition, the outer peripheral side of the cap accommodates the outer peripheral side winding joint portion, and the outer peripheral side of the outer peripheral side winding joint portion is embedded in the insulating resin filled in the chamber. Covered and insulated with insulating resin.
回転電機のステータにおける巻線接合部の絶縁構造作成方法として、次の方法が考えられる。環状の凹み部が形成された金型を用意し、その凹み部に熱硬化性樹脂を注入する。そして、径方向に複数並んで環状に配置された各巻線接合部を、金型の環状の凹み部の中に入り込ませ、熱硬化性樹脂に浸漬する。図５（Ａ）には、径方向に４つ並んで配置された各巻線接合部１１５を、金型１１８の凹み部１３２にある熱硬化性樹脂１２２に浸漬した状態が示されている。そして、図５（Ｂ）に示すように、金型１１８内で熱硬化性樹脂１２２を加熱して硬化させた後、図５（Ｃ）に示すように、巻線接合部１１５を熱硬化性樹脂１２２と共に金型１１８から取り外す。これにより、図５（Ｃ）に示すように、各巻線接合部１１５の周囲が樹脂１２２で覆われて絶縁構造が作成される。 The following method can be considered as a method of forming an insulation structure of a winding joint in a stator of a rotating electrical machine. A mold having an annular recess is prepared, and a thermosetting resin is injected into the recess. Then, a plurality of wire bonding portions arranged in a row in the radial direction and annularly arranged are inserted into the annular recess of the mold and dipped in the thermosetting resin. FIG. 5 (A) shows a state in which each of the four winding joint portions 115 arranged in the radial direction is immersed in the thermosetting resin 122 in the recessed portion 132 of the mold 118. As shown in FIG. Then, as shown in FIG. 5 (B), the thermosetting resin 122 is heated and cured in the mold 118, and then, as shown in FIG. 5 (C), the winding joint 115 is thermosetting. Remove from the mold 118 with the resin 122. As a result, as shown in FIG. 5C, the periphery of each winding joint portion 115 is covered with the resin 122, and an insulating structure is formed.
この作成方法を採用する場合、図５（Ｂ）に示すように、複数の巻線接合部１１５の隙間に樹脂１２２が毛細管現象によって流れ込むことによって、時間が経過するにつれて、金型１１８の凹み部１３２の内壁（金型１１８の内壁）近傍における樹脂面位置が、金型１１８の内壁における樹脂の上面位置よりも低下する。この樹脂面位置の低下によって、金型１１８の内壁には樹脂１２２の膜が形成され、この膜が硬化されると最終的にバリ１２４が発生する。このバリ１２４は、例えば、回転電機の使用中に脱落すると異物となり、回転電機に悪影響を与える虞がある。 When this production method is employed, as shown in FIG. 5B, the resin 122 flows into the gaps of the plurality of winding joint portions 115 by capillary action, and as time passes, the recess of the mold 118 The resin surface position in the vicinity of the inner wall 132 (the inner wall of the mold 118) is lower than the upper surface position of the resin in the inner wall of the mold 118. A film of the resin 122 is formed on the inner wall of the mold 118 due to the reduction of the resin surface position, and when the film is cured, burrs 124 are finally generated. For example, if the burr 124 falls off during use of the rotating electrical machine, it may become foreign matter, which may adversely affect the rotating electrical machine.
そこで、本発明は、回転電機のステータにおける巻線接合部の絶縁構造作成方法であって、バリの発生を抑制することができる作成方法を提供することにある。 Therefore, the present invention is a method of forming an insulation structure of a winding joint in a stator of a rotary electric machine, and is to provide a generation method capable of suppressing the occurrence of burrs.
本発明の回転電機のステータにおける巻線接合部の絶縁構造作成方法は、電気絶縁性を有する熱硬化性樹脂が注入された金型に前記巻線接合部を浸漬する浸漬工程と、前記金型内において前記熱硬化性樹脂を加熱して硬化させる硬化工程と、前記巻線接合部と共に硬化された前記熱硬化性樹脂を前記金型から取り出す取出工程と、を含み、前記浸漬工程は、前記巻線接合部を所定深さまで前記熱硬化性樹脂に浸漬して、前記金型の内壁における前記熱硬化性樹脂の上面位置を所定位置にする浸漬段階と、所定時間、前記熱硬化性樹脂を前記巻線接合部の間に吸い上げる待機段階と、前記金型の内壁と前記巻線接合部との間における前記熱硬化性樹脂の樹脂面位置が前記所定位置に維持されるように、前記巻線接合部の浸漬深さを調整する浸漬深さ調整段階と、を含む、ことを特徴とする。 A method of forming an insulation structure for a winding joint in a stator of a rotary electric machine according to the present invention comprises: an immersion step of immersing the winding joint in a mold into which a thermosetting resin having electrical insulation properties is injected; And a step of removing the thermosetting resin cured together with the wire bonding portion from the mold, and the immersing step includes the steps of: curing the thermosetting resin to cure the thermosetting resin; and removing the thermosetting resin from the mold. Immersing the wire bonding portion in the thermosetting resin to a predetermined depth, and setting the upper surface position of the thermosetting resin on the inner wall of the mold to a predetermined position; The winding step so that the resin surface position of the thermosetting resin between the inner wall of the mold and the winding joint is maintained at the predetermined position. Immersion to adjust immersion depth of wire joints Is includes an adjustment stage, and characterized in that.
本発明は、浸漬段階で巻線接合部を熱硬化性樹脂（樹脂）に浸漬して金型の内壁における熱硬化性樹脂の上面位置を所定位置にした後、待機段階で巻線接合部の間に樹脂が吸い上げられることにより金型の内壁近傍（金型の内壁と巻線接合部との間）の樹脂面位置が低くなる、または、低くなろうとするが、浸漬深さ調整段階で、金型の内壁近傍における樹脂の樹脂面位置が上記所定位置に維持されるように巻線接合部の浸漬深さが調整されて、その状態で樹脂が硬化される。よって、金型の内壁近傍の樹脂面位置が低下した状態で樹脂が硬化されることがなく、バリの発生を防ぐことができる。 According to the present invention, after the winding joint is immersed in the thermosetting resin (resin) in the immersion step to set the upper surface position of the thermosetting resin on the inner wall of the mold to a predetermined position, the winding joint is The resin surface position in the vicinity of the inner wall of the mold (between the inner wall of the mold and the winding joint) is lowered or lowered by sucking the resin in between, but at the immersion depth adjustment stage, The immersion depth of the winding joint is adjusted so that the resin surface position of the resin in the vicinity of the inner wall of the mold is maintained at the predetermined position, and the resin is cured in that state. Therefore, the resin is not cured in a state where the resin surface position in the vicinity of the inner wall of the mold is lowered, and generation of burrs can be prevented.
以下、図面を参照しながら本発明の実施形態について説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図１は、本実施形態に係るステータ１０を示す斜視図であり、巻線接合部の絶縁構造が形成される前の状態を示す図である。多数のＵ字状の導体セグメントがステータコア１２のスロット（不図示）に挿通され、リード側において、それらの端部が順次接合されることでステータコイルが形成されている。図１に示すように、径方向に隣接する端部同士が接合されて１つの巻線接合部１５が形成されており、本実施形態では、径方向に巻線接合部１５が４つ並んで構成され、巻線接合部１５は環状に配置されている。図１において、ステータコア１２の上側端面から突出した複数の巻線接合部１５がリード側コイルエンド１４を構成し、ステータコア１２の下側端面から突出した複数の導体セグメントのＵ字状部分が反リード側コイルエンド１６を構成する。 FIG. 1 is a perspective view showing a stator 10 according to the present embodiment, and is a view showing a state before an insulating structure of a winding joint is formed. A large number of U-shaped conductor segments are inserted into the slots (not shown) of the stator core 12, and on the lead side, their ends are sequentially joined to form a stator coil. As shown in FIG. 1, end portions adjacent in the radial direction are joined to form one winding joint portion 15, and in the present embodiment, four winding joint portions 15 are arranged in the radial direction. The winding joint 15 is arranged annularly. In FIG. 1, a plurality of winding joint portions 15 protruding from the upper end surface of the stator core 12 constitute the lead side coil end 14, and U-shaped portions of the plurality of conductor segments protruding from the lower end surface of the stator core 12 are anti-leads. The side coil end 16 is configured.
各巻線接合部１５の間、或いは、巻線接合部１５とステータコア１２や回転電機のカバー（不図示）等との間が短絡することを防ぐために、本実施形態では巻線接合部１５に絶縁構造が作成される。 In order to prevent a short circuit between each winding joint 15 or between the winding joint 15 and the stator core 12 or the cover (not shown) of the rotating electrical machine, insulation is applied to the winding joint 15 in the present embodiment. Structure is created.
図２（Ａ）は、ステータ１０と、ステータ１０の巻線接合部１５に絶縁構造を作成する製造装置３０との概略を示す概略断面図である。図２（Ａ）および後述する図２（Ｂ）では、図１に示したステータ１０が上下反転されて、リード側コイルエンド１４が下側になり、反リード側コイルエンド１６が上側となっている。製造装置３０は、環状の凹み部３２を有する金型１８と、金型１８の下に配置され金型１８を加熱する加熱機構２０と、ステータ１０を支持するクランプ機構（不図示）と、クランプ機構を介してステータ１０を上下動させる昇降機構（不図示）とを備えている。 FIG. 2A is a schematic cross-sectional view showing an outline of the stator 10 and a manufacturing apparatus 30 for producing an insulating structure at the winding joint 15 of the stator 10. In FIG. 2 (A) and FIG. 2 (B) described later, the stator 10 shown in FIG. 1 is turned upside down, the lead side coil end 14 is on the lower side, and the non-lead side coil end 16 is on the upper side. There is. The manufacturing apparatus 30 includes a mold 18 having an annular recess 32, a heating mechanism 20 disposed under the mold 18 for heating the mold 18, a clamp mechanism (not shown) for supporting the stator 10, and a clamp. The elevating mechanism (not shown) for moving the stator 10 up and down via a mechanism is provided.
本実施形態における巻線接合部１５の絶縁構造の作成方法は、まず、ディスペンサ（不図示）を用いて金型１８の環状の凹み部３２に液状の電気絶縁性を有する熱硬化性樹脂２２を注入し、加熱機構２０をオンにして凹み部３２の中の熱硬化性樹脂２２を液状のまま保つ。そして、図２（Ｂ）に示すように、昇降機構でステータ１０を降下させて、環状に配置された各巻線接合部１５（リード側コイルエンド１４）を、金型１８の凹み部３２の中に入り込ませ、熱硬化性樹脂２２に浸漬する（浸漬工程）。そして、加熱機構２０の金型１８を加熱する温度を高くして金型１８の凹み部３２の中の熱硬化性樹脂２２を硬化させる（硬化工程）。そして、昇降機構でステータ１０を上昇させて、巻線接合部１５（リード側コイルエンド１４）を熱硬化性樹脂２２と共に金型１８から取り出す（取出工程）。これにより、図４（Ｆ）に示すように、各巻線接合部１５の周囲が熱硬化性樹脂２２で覆われて絶縁構造が作成される。本実施形態では上記工程のうち浸漬工程に特徴を有し、それについて以下詳細に説明する。なお、以下、熱硬化性樹脂２２を単に樹脂２２とも言う。 In the method for producing the insulating structure of the winding joint portion 15 in the present embodiment, first, the thermosetting resin 22 having a liquid electrical insulation property is applied to the annular recess 32 of the mold 18 using a dispenser (not shown). Then, the heating mechanism 20 is turned on to keep the thermosetting resin 22 in the recess 32 in a liquid state. Then, as shown in FIG. 2 (B), the stator 10 is lowered by the lifting mechanism, and each winding joint portion 15 (lead side coil end 14) arranged in an annular shape is placed in the recess 32 of the mold 18. And soak in the thermosetting resin 22 (immersion process). And the temperature which heats the metal mold | die 18 of the heating mechanism 20 is made high, and the thermosetting resin 22 in the hollow part 32 of the metal mold | die 18 is hardened (hardening process). Then, the stator 10 is raised by the elevating mechanism, and the wire bonding portion 15 (lead side coil end 14) is taken out of the mold 18 together with the thermosetting resin 22 (extraction step). As a result, as shown in FIG. 4F, the periphery of each winding joint 15 is covered with the thermosetting resin 22 to form an insulation structure. The present embodiment is characterized by the immersion step among the above-described steps, which will be described in detail below. Hereinafter, the thermosetting resin 22 is also simply referred to as the resin 22.
図３は、本実施形態における巻線接合部１５の絶縁構造作成方法の工程手順を示すフローチャートである。図３のＳ１０２〜Ｓ１０６が浸漬工程であり、Ｓ１０８が硬化工程、Ｓ１１０が取出工程である。 FIG. 3 is a flow chart showing the process procedure of the method for producing an insulation structure of the winding joint portion 15 in the present embodiment. S102 to S106 in FIG. 3 are immersion steps, S108 is a curing step, and S110 is a removal step.
まず、Ｓ１００で、金型１８の凹み部３２に熱硬化性樹脂２２を注入する。これは、例えば、図４（Ａ）に示すように、金型１８の凹み部３２の内壁（以下「金型１８の内壁」とも言う）における樹脂２２の上面位置（液面位置）がａとなるように注入する。 First, in step S100, the thermosetting resin 22 is injected into the recess 32 of the mold 18. For example, as shown in FIG. 4A, the upper surface position (liquid level position) of the resin 22 on the inner wall of the recess 32 of the mold 18 (hereinafter also referred to as “inner wall of the mold 18”) is a. Inject to become
そして、図３のＳ１０２で、図４（Ｂ）に示すように、巻線接合部１５を所定深さまで樹脂２２に浸漬する（浸漬段階）。図４（Ｂ）には、それにより、金型１８の内壁における樹脂２２の上面位置がｈだけ高くなり、（ａ＋ｈ）となった状態が示されている。すなわち、浸漬段階において、巻線接合部１５を所定深さまで樹脂２２に浸漬して、金型１８の内壁における樹脂２２の上面位置を所定位置（ａ＋ｈ）にする。 Then, in S102 of FIG. 3, as shown in FIG. 4B, the wire bonding portion 15 is immersed in the resin 22 to a predetermined depth (immersion step). FIG. 4B shows a state in which the upper surface position of the resin 22 on the inner wall of the mold 18 is increased by h to become (a + h). That is, in the immersing stage, the wire bonding portion 15 is immersed in the resin 22 to a predetermined depth, and the upper surface position of the resin 22 on the inner wall of the mold 18 is set to the predetermined position (a + h).
次に、図３のＳ１０４で、所定時間、巻線接合部１５の間に樹脂２２が吸い上げられるのを待機する（待機段階）。この待機段階により、図４（Ｃ）に示すように、各巻線接合部１５の間に樹脂２２が毛細管現象により吸い上げられ、金型１８の内壁近傍の樹脂面位置は、金型１８の内壁における樹脂２２の上面位置（所定位置（ａ＋ｈ））よりも低くなる。なお、「金型１８の内壁近傍」とは、「金型１８の内壁と巻線接合部１５との間」である。 Next, in S104 of FIG. 3, it waits for the resin 22 to be sucked up between the winding joints 15 for a predetermined time (standby stage). In this waiting step, as shown in FIG. 4C, the resin 22 is sucked up by capillary action between the respective winding joint portions 15, and the resin surface position in the vicinity of the inner wall of the mold 18 corresponds to the inner surface of the mold 18. It becomes lower than the upper surface position (predetermined position (a + h)) of the resin 22. Here, “in the vicinity of the inner wall of the mold 18” means “between the inner wall of the mold 18 and the winding joint 15”.
次に、図３のＳ１０６で、金型１８の内壁近傍の樹脂面位置が、金型１８の内壁における樹脂２２の上面位置（所定位置（ａ＋ｈ））に維持されるように、巻線接合部１５の浸漬深さを調整する（浸漬深さ調整段階）。図４（Ｄ）には、浸漬段階の深さよりも深い深さまで巻線接合部１５を樹脂２２に浸漬することで、金型１８の内壁における樹脂２２の上面位置（所定位置）を樹脂面位置として維持している状態が示されている。すなわち、図４（Ｄ）には、浸漬段階の深さよりも深い深さまで巻線接合部１５を樹脂２２に浸漬することで、金型１８の内壁近傍の樹脂面位置を所定位置（ａ＋ｈ）に維持している状態が示されている。 Next, in S106 of FIG. 3, the winding joint portion is maintained so that the resin surface position in the vicinity of the inner wall of the mold 18 is maintained at the upper surface position (predetermined position (a + h)) of the resin 22 on the inner wall of the mold 18. Adjust the immersion depth of 15 (immersion depth adjustment stage). In FIG. 4D, by immersing the wire bonding portion 15 in the resin 22 to a depth deeper than the depth of the immersion stage, the upper surface position (predetermined position) of the resin 22 on the inner wall of the mold 18 is the resin surface position. The state of maintaining is shown. That is, in FIG. 4D, by immersing the wire bonding portion 15 in the resin 22 to a depth deeper than the depth of the immersion stage, the resin surface position in the vicinity of the inner wall of the mold 18 is set to the predetermined position (a + h). The state of maintaining is shown.
なお、図３のフローチャートでは、待機段階（Ｓ１０４）の後に浸漬深さ調整段階（Ｓ１０６）を行っているが、これらは同時に行ってもよい。すなわち、巻線接合部１５の間に樹脂２２が吸い上げられることにより金型１８の内壁近傍の樹脂面位置が低くなろうとする速度に合わせて、樹脂２２に巻線接合部１５を浸漬する深さを深くすることで、金型１８の内壁近傍の樹脂面位置を所定位置（ａ＋ｈ）に維持するとしてもよい。 Although the immersion depth adjustment step (S106) is performed after the standby step (S104) in the flowchart of FIG. 3, these may be performed simultaneously. That is, the depth at which the wire bonding portion 15 is immersed in the resin 22 in accordance with the speed at which the resin surface position in the vicinity of the inner wall of the mold 18 is lowered by sucking the resin 22 between the wire bonding portions 15. The resin surface position in the vicinity of the inner wall of the mold 18 may be maintained at a predetermined position (a + h) by deepening
次に、図３のＳ１０８で、金型１８の内壁近傍の樹脂面位置を所定位置（ａ＋ｈ）に維持した状態（図４（Ｄ）に示す状態）で、熱硬化性樹脂２２を硬化させる（硬化工程）。そして、図３のＳ１１０で、図４（Ｅ）に示すように、巻線接合部１５を上昇させて、巻線接合部１５を熱硬化性樹脂２２と共に金型１８から取り出す（取出工程）。 Next, in step S108 of FIG. 3, the thermosetting resin 22 is cured in a state where the resin surface position in the vicinity of the inner wall of the mold 18 is maintained at a predetermined position (a + h) (the state shown in FIG. Curing process). Then, in S110 of FIG. 3, as shown in FIG. 4E, the winding joint 15 is raised, and the winding joint 15 is taken out of the mold 18 together with the thermosetting resin 22 (extraction step).
以上説明した作成方法により、図４（Ｅ）に示すように、各巻線接合部１５の間に樹脂２２が入り込み、各巻線接合部１５の先端に樹脂２２が付着され、端にある２つの巻線接合部１５の外側には樹脂２２が付着されて、絶縁構造が作成される。 By the above-described production method, as shown in FIG. 4 (E), the resin 22 enters between the winding joint portions 15, the resin 22 is attached to the tip of each winding joint portion 15, and the two windings at the end The resin 22 is attached to the outside of the wire bonding portion 15 to form an insulating structure.
なお、以上説明した作成方法の浸漬工程における、浸漬段階での巻線接合部１５を樹脂２２に浸漬する深さ、待機段階での待機時間（所定時間）、及び浸漬深さ調整段階での巻線接合部１５を樹脂２２にさらに浸漬する深さ等（以下「パラメータ」という）は、予め決定しておくことが可能である。すなわち、金型１８に注入されている樹脂２２の量や、巻線接合部１５の形状、巻線接合部１５に形成する絶縁構造の寸法などからパラメータを決定しておくことができる。或いは、事前に実験を行うことによってもパラメータを決定しておくことができる。パラメータに従って、ステータ１０の上下動を行う昇降機構を制御することで、上記した作成方法の浸漬工程は製造装置３０によって自動化される。 In the immersing step of the manufacturing method described above, the depth to immerse the wire bonding portion 15 in the immersing step in the resin 22, the waiting time (predetermined time) in the waiting step, and the winding in the immersing depth adjusting step. The depth (hereinafter referred to as “parameter”) for further immersing the wire bonding portion 15 in the resin 22 can be determined in advance. That is, the parameters can be determined in advance from the amount of the resin 22 injected into the mold 18, the shape of the winding joint 15, the dimension of the insulating structure formed in the winding joint 15, and the like. Alternatively, the parameters can be determined in advance by conducting experiments. By controlling the elevating mechanism that moves the stator 10 up and down according to the parameters, the immersing process of the above-described creation method is automated by the manufacturing apparatus 30.
次に、本実施形態における巻線接合部１５の絶縁構造作成方法の作用効果について説明する。 Next, the operation and effect of the method for producing an insulating structure of the winding joint portion 15 in the present embodiment will be described.
本実施形態の巻線接合部１５の絶縁構造作成方法は、まず、浸漬段階で、樹脂２２に巻線接合部１５を所定深さ浸漬して、金型１８の内壁における樹脂２２の上面位置を所定位置にする。そして、巻線接合部１５の間に樹脂２２が吸い上げられることにより金型１８の内壁近傍（金型１８の内壁と巻線接合部１５との間）における樹脂面位置が低くなる、或いは、低くなろうとするが、浸漬深さ調整段階で、金型１８の内壁近傍の樹脂面位置が
金型１８の内壁における樹脂２２の上面位置である所定位置に維持されるように樹脂２２に巻線接合部１５をさらに深く浸漬する（浸漬深さを調整する）。そして、その状態で樹脂２２を硬化させる。このように、各巻線接合部１５の間に樹脂２２が吸い上げられることにより、金型１８の内壁近傍の樹脂面位置が低下した状態で樹脂２２が硬化されてしまうことが防がれている。それにより、金型１８の内壁に樹脂２２の膜が形成されることがなく、樹脂２２を硬化した際にバリの発生を防ぐことができる。
In the insulating structure forming method of the winding joint portion 15 of the present embodiment, first, the winding joint portion 15 is immersed in the resin 22 by a predetermined depth in the immersion step, and the upper surface position of the resin 22 on the inner wall of the mold 18 is Put in place. Then, the resin 22 is sucked between the winding joint portions 15 to lower or lower the resin surface position in the vicinity of the inner wall of the mold 18 (between the inner wall of the mold 18 and the winding joint portion 15) In the immersion depth adjustment step, wire bonding is performed to the resin 22 so that the resin surface position in the vicinity of the inner wall of the mold 18 is maintained at a predetermined position which is the upper surface position of the resin 22 on the inner wall of the mold 18 Immerse the part 15 deeper (adjust the immersion depth). Then, the resin 22 is cured in that state. As described above, the resin 22 is sucked between the respective winding joint portions 15 to prevent the resin 22 from being cured in a state where the resin surface position in the vicinity of the inner wall of the mold 18 is lowered. As a result, a film of the resin 22 is not formed on the inner wall of the mold 18, and generation of burrs can be prevented when the resin 22 is cured.
また、本実施形態の作成方法によれば、巻線接合部１５を樹脂２２に浸漬した（浸漬段階）後に、待機段階において巻線接合部１５の間に樹脂２２が吸い上げられた状態とするため、その後の浸漬深さ調整段階においてはその吸い上げられる量が減り、金型１８の内壁近傍の樹脂面位置の降下が抑制される。そのため、浸漬深さ調整段階において、金型１８の内壁近傍の樹脂面位置を金型１８の内壁における樹脂２２の上面位置（所定位置）に維持することが容易となっている。 Further, according to the production method of the present embodiment, after the winding joint portion 15 is immersed in the resin 22 (immersion stage), the resin 22 is sucked between the winding joint portions 15 in the standby stage. In the subsequent immersion depth adjustment stage, the amount to be sucked up is reduced, and the drop of the resin surface position in the vicinity of the inner wall of the mold 18 is suppressed. Therefore, it is easy to maintain the resin surface position in the vicinity of the inner wall of the mold 18 at the upper surface position (predetermined position) of the resin 22 on the inner wall of the mold 18 in the immersion depth adjustment stage.
１０ ステータ、１２，１１２ ステータコア、１４ リード側コイルエンド、１５，１１５ 巻線接合部、１６ 反リード側コイルエンド、１８，１１８ 金型、２０ 加熱機構、２２，１２２ 樹脂（熱硬化性樹脂）、３０ 製造装置、３２，１３２ 凹み部、１２４ バリ。 DESCRIPTION OF SYMBOLS 10 stator, 12,112 stator core, 14 lead side coil end, 15,115 winding junction part, 16 non-lead side coil end, 18,118 mold, 20 heating mechanism, 22,122 resin (thermosetting resin), 30 manufacturing equipment, 32,132 dents, 124 burrs.
Claims (1)
電気絶縁性を有する熱硬化性樹脂が注入された金型に前記巻線接合部を浸漬する浸漬工程と、
前記金型内において前記熱硬化性樹脂を加熱して硬化させる硬化工程と、
前記巻線接合部と共に硬化された前記熱硬化性樹脂を前記金型から取り出す取出工程と、を含み、
前記浸漬工程は、
前記巻線接合部を所定深さまで前記熱硬化性樹脂に浸漬して、前記金型の内壁における前記熱硬化性樹脂の上面位置を所定位置にする浸漬段階と、
所定時間、前記熱硬化性樹脂を前記巻線接合部の間に吸い上げる待機段階と、
前記金型の内壁と前記巻線接合部との間における前記熱硬化性樹脂の樹脂面位置が前記所定位置に維持されるように、前記巻線接合部の浸漬深さを調整する浸漬深さ調整段階と、を含む、
ことを特徴とする回転電機のステータにおける巻線接合部の絶縁構造作成方法。 A method of forming an insulation structure of a winding joint in a stator of a rotating electrical machine, comprising:
An immersion step of immersing the winding joint in a mold into which a thermosetting resin having electrical insulation property is injected;
A curing step of heating and curing the thermosetting resin in the mold;
Removing the thermosetting resin cured together with the winding joint from the mold;
The immersion step is
Immersing the winding joint in the thermosetting resin to a predetermined depth to set the upper surface position of the thermosetting resin on the inner wall of the mold to a predetermined position;
A standby step of sucking the thermosetting resin between the winding joints for a predetermined time;
Immersion depth for adjusting the immersion depth of the winding joint so that the resin surface position of the thermosetting resin between the inner wall of the mold and the winding joint is maintained at the predetermined position Adjustment phase, and,
A method of forming an insulation structure of a winding joint in a stator of a rotating electric machine characterized by
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019193359A (en) * | 2018-04-19 | 2019-10-31 | トヨタ自動車株式会社 | Manufacturing method for stator of rotary electric machine |
| WO2023189953A1 (en) * | 2022-03-31 | 2023-10-05 | 株式会社アイシン | Stator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011085051A1 (en) * | 2011-10-21 | 2013-04-25 | Robert Bosch Gmbh | Method for thermally binding stator winding head to stator housing of e.g. generator, involves impregnating thermally conductive filler and stator winding by impregnation unit after insertion of thermally conductive filler |
| JP2015073412A (en) * | 2013-10-04 | 2015-04-16 | 三菱電機株式会社 | Coil of electric device and coil manufacturing method of electric device |
| JP2016131416A (en) * | 2015-01-13 | 2016-07-21 | トヨタ自動車株式会社 | Insulation treatment device of stator |
| JP2017189058A (en) * | 2016-04-07 | 2017-10-12 | トヨタ自動車株式会社 | Method of forming coil end |
| JP2018113794A (en) * | 2017-01-12 | 2018-07-19 | トヨタ自動車株式会社 | Method for manufacturing stator of rotary electric machine |
| JP2019193359A (en) * | 2018-04-19 | 2019-10-31 | トヨタ自動車株式会社 | Manufacturing method for stator of rotary electric machine |
-
2017
- 2017-11-22 JP JP2017225169A patent/JP6912361B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011085051A1 (en) * | 2011-10-21 | 2013-04-25 | Robert Bosch Gmbh | Method for thermally binding stator winding head to stator housing of e.g. generator, involves impregnating thermally conductive filler and stator winding by impregnation unit after insertion of thermally conductive filler |
| JP2015073412A (en) * | 2013-10-04 | 2015-04-16 | 三菱電機株式会社 | Coil of electric device and coil manufacturing method of electric device |
| JP2016131416A (en) * | 2015-01-13 | 2016-07-21 | トヨタ自動車株式会社 | Insulation treatment device of stator |
| JP2017189058A (en) * | 2016-04-07 | 2017-10-12 | トヨタ自動車株式会社 | Method of forming coil end |
| JP2018113794A (en) * | 2017-01-12 | 2018-07-19 | トヨタ自動車株式会社 | Method for manufacturing stator of rotary electric machine |
| JP2019193359A (en) * | 2018-04-19 | 2019-10-31 | トヨタ自動車株式会社 | Manufacturing method for stator of rotary electric machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019193359A (en) * | 2018-04-19 | 2019-10-31 | トヨタ自動車株式会社 | Manufacturing method for stator of rotary electric machine |
| WO2023189953A1 (en) * | 2022-03-31 | 2023-10-05 | 株式会社アイシン | Stator |
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