JP2021027681A - Motor support structure - Google Patents
Motor support structure Download PDFInfo
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- JP2021027681A JP2021027681A JP2019143481A JP2019143481A JP2021027681A JP 2021027681 A JP2021027681 A JP 2021027681A JP 2019143481 A JP2019143481 A JP 2019143481A JP 2019143481 A JP2019143481 A JP 2019143481A JP 2021027681 A JP2021027681 A JP 2021027681A
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- 239000000463 material Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 abstract description 22
- 238000003780 insertion Methods 0.000 abstract description 20
- 230000037431 insertion Effects 0.000 abstract description 20
- 238000009413 insulation Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Motor Or Generator Frames (AREA)
Abstract
Description
本発明は、モータ支持構造に関する。 The present invention relates to a motor support structure.
ハイブリッド車（ＨＶ：Hybrid Vehicle）や電気自動車（ＥＶ：Electric Vehicle）には、走行用の駆動源としてのモータが搭載されている。モータには、永久磁石同期モータ（ＰＭＳＭ：Permanent Magnet Synchronous Motor）が広く採用されている。永久磁石同期モータは、ロータに強磁性体である永久磁石を用いた同期電動機である。 Hybrid vehicles (HVs) and electric vehicles (EVs) are equipped with motors as drive sources for driving. Permanent Magnet Synchronous Motor (PMSM) is widely used as the motor. A permanent magnet synchronous motor is a synchronous motor that uses a permanent magnet, which is a ferromagnet, for the rotor.
モータは、ケースおよびカバー内に収容されて、そのケースおよびカバーに支持されている。具体的には、モータは、支持部材を備えている。支持部材は、カバーにボルトで締結されている。支持部材には、ベアリングの外輪が固定されており、ロータは、そのベアリングの内輪に挿通されて、ベアリングを介して支持部材に回転可能に支持されている。 The motor is housed in a case and cover and supported by the case and cover. Specifically, the motor includes a support member. The support member is bolted to the cover. The outer ring of the bearing is fixed to the support member, and the rotor is inserted through the inner ring of the bearing and rotatably supported by the support member via the bearing.
回転子、ベアリング、支持部材、ケースおよびカバーは、いずれも金属製である。そのため、ロータの回転角度による磁気抵抗の変化などにより、回転子の永久磁石が発生する磁束が変化すると、電磁誘導による電圧が生じ、回転子、ベアリング、支持部材、ケースおよびカバーで形成される閉回路に誘導電流が流れる。その結果、ベアリングなどに電食が発生するおそれがある。 The rotor, bearings, support members, case and cover are all made of metal. Therefore, when the magnetic flux generated by the permanent magnet of the rotor changes due to a change in magnetic resistance due to the rotation angle of the rotor, a voltage due to electromagnetic induction is generated, and the closure formed by the rotor, bearing, support member, case and cover. Inductive current flows through the circuit. As a result, electrolytic corrosion may occur on the bearings and the like.
そこで、支持部材とカバーとの間に絶縁板を介在させて、支持部材とカバーとの間で絶縁を図ることが提案されている（たとえば、特許文献１参照）。 Therefore, it has been proposed to insert an insulating plate between the support member and the cover to insulate the support member and the cover (see, for example, Patent Document 1).
しかしながら、支持部材とカバーとの間に絶縁板を介在させただけでは、支持部材とカバーとの絶縁が十分ではないことが判った。そして、本願発明者らは、支持部材とカバーとが十分に絶縁されない原因を探求し、その結果、本発明に至った。 However, it was found that the insulation between the support member and the cover is not sufficient only by interposing the insulating plate between the support member and the cover. Then, the inventors of the present application searched for the cause of insufficient insulation between the support member and the cover, and as a result, came to the present invention.
本発明は、かかる背景の下になされたものであり、その目的は、支持部材とカバーとを良好に絶縁できる、モータ支持構造を提供することである。 The present invention has been made under such a background, and an object of the present invention is to provide a motor support structure capable of satisfactorily insulating a support member and a cover.
前記の目的を達成するため、本発明の一の局面に係るモータ支持構造は、モータのロータを回転可能に支持する支持部材とモータを収容するカバーとの間に、プレート状の基材の両面に絶縁層を設けた絶縁部材が介在されて、支持部材がカバーに支持され、支持部材またはカバーの少なくとも一方に、絶縁部材の縁部との接触を回避する逃がし空間が形成されている。 In order to achieve the above object, the motor support structure according to one aspect of the present invention has both sides of a plate-shaped base material between a support member that rotatably supports the rotor of the motor and a cover that houses the motor. An insulating member provided with an insulating layer is interposed in the support member, and the support member is supported by the cover, and a relief space for avoiding contact with the edge portion of the insulating member is formed on at least one of the support member or the cover.
この逃がし空間が形成されていることにより、絶縁部材の縁部と支持部材またはカバーとの接触が回避されるので、絶縁部材の絶縁性能を確保することができる。その結果、支持部材とカバーとを良好に絶縁でき、電食の発生を抑制することができる。 By forming this relief space, contact between the edge portion of the insulating member and the support member or the cover is avoided, so that the insulating performance of the insulating member can be ensured. As a result, the support member and the cover can be well insulated, and the occurrence of electrolytic corrosion can be suppressed.
すなわち、絶縁部材の縁部には、図８に示されるようにその加工時にバリが発生する。そのバリを有する縁部が支持部材とカバーとに挟まれて、支持部材またはカバーによりバリが押されると、応力が発生し、図９に示されるように、絶縁部材におけるバリが突出する側と反対側の絶縁層が局所的に圧縮変形する。そして、その圧縮変形により、絶縁層のインピーダンスが局所的に低下し、絶縁部材の絶縁性能が低下するのではないかと、本願発明者らは考えて本発明に至った。 That is, as shown in FIG. 8, burrs are generated on the edge of the insulating member during its processing. When the edge having the burr is sandwiched between the support member and the cover and the burr is pushed by the support member or the cover, stress is generated, and as shown in FIG. 9, the burr on the side where the burr protrudes from the insulating member. The insulating layer on the opposite side is locally compressed and deformed. Then, the inventors of the present application have come to the present invention, thinking that the impedance of the insulating layer may be locally lowered due to the compressive deformation and the insulating performance of the insulating member may be lowered.
逃がし空間により、絶縁部材の縁部に生じているバリが支持部材またはカバーと接触することが回避されるので、バリが支持部材またはカバーに押されることによる絶縁層の局所的な圧縮変形を防止できる。その結果、絶縁層のインピーダンスが局所的に低下することを抑制でき、絶縁部材の絶縁性能を確保することができる。 The relief space prevents burrs on the edges of the insulating member from coming into contact with the support member or cover, thus preventing local compressive deformation of the insulating layer due to the burrs being pushed by the support member or cover. it can. As a result, it is possible to suppress a local decrease in the impedance of the insulating layer, and it is possible to secure the insulating performance of the insulating member.
絶縁部材には、第１ノック穴および第２ノック穴が形成されており、第２ノック穴は、第１ノック穴の中心と第２ノック穴の中心とを通る直線の方向に長い長穴であることが好ましい。 A first knock hole and a second knock hole are formed in the insulating member, and the second knock hole is an elongated hole long in the straight line direction passing through the center of the first knock hole and the center of the second knock hole. It is preferable to have.
この構成によれば、第２ノック穴が長穴に形成されているので、絶縁部材に加工による反りが生じていても、組付時に第２ノック穴にノックピンを挿通させることができる。そのため、絶縁部材に要求される反りの規格を緩和することができる。その結果、絶縁部材の製造コストを低減することができる。 According to this configuration, since the second knock hole is formed as an elongated hole, the knock pin can be inserted into the second knock hole at the time of assembly even if the insulating member is warped due to processing. Therefore, the warp standard required for the insulating member can be relaxed. As a result, the manufacturing cost of the insulating member can be reduced.
また、第１ノック穴が丸穴に形成されていれば、第１ノック穴に挿通されるノックピンにより絶縁部材を支持部材およびカバーに対して精度よく位置決めすることができる。そのため、支持部材またはカバーの少なくとも一方に形成される逃がし空間のサイズの縮小を図ることができる。これにより、逃がし空間が形成される支持部材および／またはカバーと絶縁部材との接触面積を大きく確保して、その接触部分に生じる面圧の増大を抑制することができる。 Further, if the first knock hole is formed in a round hole, the insulating member can be accurately positioned with respect to the support member and the cover by the knock pin inserted through the first knock hole. Therefore, the size of the relief space formed on at least one of the support member or the cover can be reduced. As a result, it is possible to secure a large contact area between the support member and / or the cover and the insulating member in which the relief space is formed, and suppress the increase in the surface pressure generated in the contact portion.
本発明の他の局面に係るモータ支持構造は、モータのロータを回転可能に支持する支持部材とモータを収容するカバーとの間に、プレート状の基材の両面に絶縁層を設けた絶縁部材が介在されて、支持部材がカバーに支持され、絶縁部材の縁部は、支持部材における絶縁部材との接触領域のエッジよりも外側に位置している。 The motor support structure according to another aspect of the present invention is an insulating member in which insulating layers are provided on both sides of a plate-shaped base material between a support member that rotatably supports the rotor of the motor and a cover that houses the motor. The support member is supported by the cover, and the edge of the insulating member is located outside the edge of the contact region of the support member with the insulating member.
この構成によれば、絶縁部材の縁部が支持部材と接触することを回避できる。よって、絶縁部材の絶縁性能を確保することができ、支持部材と支持部材とを良好に絶縁できるので、電食の発生を抑制することができる。 According to this configuration, it is possible to prevent the edge portion of the insulating member from coming into contact with the support member. Therefore, the insulating performance of the insulating member can be ensured, and the support member and the support member can be well insulated, so that the occurrence of electrolytic corrosion can be suppressed.
本発明によれば、支持部材とカバーとを良好に絶縁でき、電食の発生を抑制することができる。 According to the present invention, the support member and the cover can be well insulated, and the occurrence of electrolytic corrosion can be suppressed.
以下では、本発明の実施の形態について、添付図面を参照しつつ詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
＜モータ支持構造＞
図１は、本発明の一実施形態に係るモータ支持構造３の構成部品を分解して示す斜視図である。図２は、図１に示される各構成部品を所定の平面で切断したときの端面を示す図である。
<Motor support structure>
FIG. 1 is a perspective view showing the components of the motor support structure 3 according to the embodiment of the present invention in an exploded manner. FIG. 2 is a diagram showing end faces when each component shown in FIG. 1 is cut on a predetermined plane.
たとえば、ハイブリッド車では、走行用の駆動源としてのモータ１がケースおよびカバー２内に収容される。モータ支持構造３は、モータ１をカバー２により支持する構造である。 For example, in a hybrid vehicle, a motor 1 as a driving source for traveling is housed in a case and a cover 2. The motor support structure 3 is a structure in which the motor 1 is supported by the cover 2.
モータ１は、支持部材１１を備えている。支持部材１１には、有底円筒状のベアリング収容部１２が形成されている。ベアリング収容部１２の内側には、ベアリング１３が嵌められ、そのベアリング１３を介して、モータ１のロータ（図示せず）が回転可能に支持される。ベアリング収容部１２の周囲には、３個のボルト挿通部１４と、２個のノックピン挿入部１５とが形成されている。各ボルト挿通部１４には、締結用のボルトＢが挿通されるボルト挿通穴１６がベアリング収容部１２の中心線の方向に貫通して形成されている。各ノックピン挿入部１５には、ノックピンＮが挿入されるノック穴１７がノックピンＮの外径に応じた径を有する円形の凹部として形成されている。 The motor 1 includes a support member 11. The support member 11 is formed with a bottomed cylindrical bearing accommodating portion 12. A bearing 13 is fitted inside the bearing accommodating portion 12, and a rotor (not shown) of the motor 1 is rotatably supported via the bearing 13. Three bolt insertion portions 14 and two knock pin insertion portions 15 are formed around the bearing accommodating portion 12. Each bolt insertion portion 14 is formed with a bolt insertion hole 16 through which a fastening bolt B is inserted so as to penetrate in the direction of the center line of the bearing accommodating portion 12. In each knock pin insertion portion 15, a knock hole 17 into which the knock pin N is inserted is formed as a circular recess having a diameter corresponding to the outer diameter of the knock pin N.
なお、ノックピンＮの外径に応じた径とは、ノックピンＮがノック穴１７に挿入されたときに、ノックピンＮとノック穴１７との間でガタが生じないような径をいう。後述する絶縁円筒部材２５および第１ノック穴３６についても同様である。 The diameter corresponding to the outer diameter of the knock pin N means a diameter that does not cause play between the knock pin N and the knock hole 17 when the knock pin N is inserted into the knock hole 17. The same applies to the insulated cylindrical member 25 and the first knock hole 36, which will be described later.
カバー２には、支持部材１１の各ボルト挿通部１４と重なる位置に、カバー２の内面から突出するボス２１が形成されている。各ボス２１には、ボルトＢの先端部がねじ込まれるボルト穴２２が形成されている。ボルト穴２２の周面には、雌ねじが切られている。また、カバー２には、支持部材１１の各ノックピン挿入部１５と重なる位置に、カバー２の内面から突出するボス２３が形成されている。各ボス２３には、ノックピンＮが挿入されるノック穴２４が円形の凹部として形成されている。ノック穴２４の内周面には、絶縁材料からなる円筒状の絶縁円筒部材２５が嵌められている。絶縁円筒部材２５の内径は、ノックピンＮの外径に応じた径に設定されている。 A boss 21 protruding from the inner surface of the cover 2 is formed on the cover 2 at a position overlapping each bolt insertion portion 14 of the support member 11. Each boss 21 is formed with a bolt hole 22 into which the tip of the bolt B is screwed. A female thread is cut on the peripheral surface of the bolt hole 22. Further, the cover 2 is formed with a boss 23 protruding from the inner surface of the cover 2 at a position overlapping with each knock pin insertion portion 15 of the support member 11. In each boss 23, a knock hole 24 into which the knock pin N is inserted is formed as a circular recess. A cylindrical insulating cylindrical member 25 made of an insulating material is fitted on the inner peripheral surface of the knock hole 24. The inner diameter of the insulating cylindrical member 25 is set to a diameter corresponding to the outer diameter of the knock pin N.
カバー２と支持部材１１との間には、絶縁プレート３１が介在される。絶縁プレート３１は、図８に示されるように、プレート状の基材となる鋼板３２の両面に絶縁層３３，３４を設けた構成を有している。絶縁層３３，３４の材料としては、たとえば、ニトリルゴム（ＮＢＲ）を用いることができる。 An insulating plate 31 is interposed between the cover 2 and the support member 11. As shown in FIG. 8, the insulating plate 31 has a structure in which insulating layers 33 and 34 are provided on both sides of a steel plate 32 which is a plate-shaped base material. As the material of the insulating layers 33 and 34, for example, nitrile rubber (NBR) can be used.
図３は、絶縁プレート３１を支持部材１１側から見た図である。 FIG. 3 is a view of the insulating plate 31 as viewed from the support member 11 side.
絶縁プレート３１には、支持部材１１の各ボルト挿通部１４と重なる位置に、ボルト挿通穴３５が厚さ方向に貫通して形成されている。また、支持部材１１の各ノックピン挿入部１５と重なる位置に、第１ノック穴３６および第２ノック穴３７が厚さ方向に貫通して形成されている。第１ノック穴３６は、丸穴であり、その径は、ノックピンＮの外径に応じた径に設定されている。第２ノック穴３７は、第１ノック穴３６の中心と第２ノック穴３７の中心とを通る直線Ｌの方向に長い長穴に形成されている。 A bolt insertion hole 35 is formed in the insulating plate 31 so as to penetrate in the thickness direction at a position overlapping each bolt insertion portion 14 of the support member 11. Further, a first knock hole 36 and a second knock hole 37 are formed so as to penetrate in the thickness direction at a position overlapping each knock pin insertion portion 15 of the support member 11. The first knock hole 36 is a round hole, and its diameter is set to a diameter corresponding to the outer diameter of the knock pin N. The second knock hole 37 is formed in an elongated hole long in the direction of a straight line L passing through the center of the first knock hole 36 and the center of the second knock hole 37.
かかる構成の絶縁プレート３１は、鋼板３２および絶縁層３３，３４の積層体をプレス加工（打ち抜き加工）することにより作製される。そのため、ボルト挿通穴３５、第１ノック穴３６および第２ノック穴３７の各周縁部、ならびに絶縁プレート３１の外周縁部には、図８に示されるように、バリ３８が生じる。 The insulating plate 31 having such a structure is produced by pressing (punching) the laminated body of the steel plate 32 and the insulating layers 33 and 34. Therefore, as shown in FIG. 8, burrs 38 are formed on the peripheral edges of the bolt insertion hole 35, the first knock hole 36 and the second knock hole 37, and the outer peripheral edge of the insulating plate 31.
絶縁プレート３１は、バリ３８が突出する側を支持部材１１側に向けて、カバー２と支持部材１１との間に介在される。そして、絶縁プレート３１の第１ノック穴３６および第２ノック穴３７にそれぞれ挿通されるノックピンＮの一端部がカバー２のノック穴２４に挿入され、他端部が支持部材１１のノック穴１７に挿入されることにより、絶縁プレート３１がカバー２と支持部材１１との間でそれらに対して位置決めされる。そして、締結用のボルトＢが絶縁材料からなる絶縁ワッシャ３９に挿通された後、そのボルトＢが支持部材１１の各ボルト挿通部１４および絶縁プレート３１の各ボルト挿通穴３５に順に挿通されて、各ボルトＢの先端部がカバー２のボルト穴２２にねじ込まれることにより、支持部材１１および絶縁プレート３１がカバー２に締結される。 The insulating plate 31 is interposed between the cover 2 and the support member 11 with the side on which the burr 38 protrudes toward the support member 11. Then, one end of the knock pin N inserted into the first knock hole 36 and the second knock hole 37 of the insulating plate 31 is inserted into the knock hole 24 of the cover 2, and the other end is inserted into the knock hole 17 of the support member 11. By being inserted, the insulating plate 31 is positioned between the cover 2 and the support member 11 with respect to them. Then, after the fastening bolt B is inserted into the insulating washer 39 made of the insulating material, the bolt B is sequentially inserted into each bolt insertion portion 14 of the support member 11 and each bolt insertion hole 35 of the insulating plate 31. The support member 11 and the insulating plate 31 are fastened to the cover 2 by screwing the tip of each bolt B into the bolt hole 22 of the cover 2.
図４、図５、図６および図７は、モータ支持構造３の断面図であり、それぞれ絶縁プレート３１のボルト挿通穴３５の周縁部、第１ノック穴３６の周縁部、第２ノック穴３７の周縁部および外周縁部を含む部分を示す。 4, FIG. 5, FIG. 6 and FIG. 7 are cross-sectional views of the motor support structure 3, respectively, the peripheral edge of the bolt insertion hole 35 of the insulating plate 31, the peripheral edge of the first knock hole 36, and the second knock hole 37, respectively. The part including the peripheral edge portion and the outer peripheral edge portion of the above is shown.
絶縁プレート３１のボルト挿通穴３５、第１ノック穴３６および第２ノック穴３７の各周縁部には、バリ３８が生じているので、支持部材１１のボルト挿通穴１６およびノック穴１７の各周縁部には、面取りまたは座ぐりにより、バリ３８との接触を回避する逃がし空間４１が形成されている。言い換えれば、バリ３８と支持部材１１との接触を回避すべく、支持部材１１のボルト挿通穴１６およびノック穴１７の各周縁部に逃がし空間４１が形成されることにより、絶縁プレート３１のボルト挿通穴３５、第１ノック穴３６および第２ノック穴３７の各周縁部は、支持部材１１における絶縁プレート３１との接触領域のエッジよりも外側にはみ出している。 Since burrs 38 are formed on the peripheral edges of the bolt insertion holes 35, the first knock hole 36, and the second knock hole 37 of the insulating plate 31, the peripheral edges of the bolt insertion holes 16 and the knock holes 17 of the support member 11 are formed. A relief space 41 is formed in the portion by chamfering or counterbore to avoid contact with the burr 38. In other words, in order to avoid contact between the burr 38 and the support member 11, relief spaces 41 are formed at the peripheral edges of the bolt insertion holes 16 and the knock holes 17 of the support member 11, so that the bolts of the insulating plate 31 can be inserted. The peripheral edges of the hole 35, the first knock hole 36, and the second knock hole 37 protrude outward from the edge of the contact region of the support member 11 with the insulating plate 31.
また、絶縁プレート３１の外周縁部にも、バリ３８が生じているので、バリ３８と支持部材１１との接触を回避すべく、絶縁プレート３１の外周縁部は、支持部材１１の外周にはみ出している。 Further, since burrs 38 are also generated on the outer peripheral edge of the insulating plate 31, the outer peripheral edge of the insulating plate 31 protrudes to the outer periphery of the support member 11 in order to avoid contact between the burrs 38 and the support member 11. ing.
＜作用効果＞
以上のように、絶縁プレート３１に生じているバリ３８と支持部材１１との接触が回避されるので、絶縁プレート３１の絶縁性能を確保することができる。すなわち、絶縁プレート３１の縁部に生じているバリ３８が支持部材１１と接触することが回避されるので、バリ３８が支持部材１１に押されることによる絶縁層３４の局所的な圧縮変形を防止できる。その結果、絶縁層３４のインピーダンスが局所的に低下することを抑制でき、絶縁プレート３１の絶縁性能を確保することができる。そして、カバー２と支持部材１１とを良好に絶縁できるので、ベアリング１３などに電食が発生することを抑制できる。
<Effect>
As described above, the contact between the burr 38 and the support member 11 that occurs in the insulating plate 31 is avoided, so that the insulating performance of the insulating plate 31 can be ensured. That is, since the burr 38 generated at the edge of the insulating plate 31 is prevented from coming into contact with the support member 11, local compressive deformation of the insulating layer 34 due to the burr 38 being pushed by the support member 11 is prevented. it can. As a result, it is possible to suppress a local decrease in the impedance of the insulating layer 34, and it is possible to secure the insulating performance of the insulating plate 31. Since the cover 2 and the support member 11 can be well insulated, it is possible to suppress the occurrence of electrolytic corrosion on the bearing 13 and the like.
しかも、支持部材１１とバリ３８との接触を回避するためにバリ３８を除去する必要がないので、製造コストが安価ですむ。 Moreover, since it is not necessary to remove the burr 38 in order to avoid contact between the support member 11 and the burr 38, the manufacturing cost is low.
また、絶縁プレート３１の第２ノック穴３７が長穴に形成されているので、絶縁プレート３１に加工による反りが生じていても、第２ノック穴３７にノックピンＮを挿通させることができる。そのため、絶縁プレート３１に要求される反りの規格を緩和することができる。その結果、絶縁プレート３１の製造コストを低減することができる。 Further, since the second knock hole 37 of the insulating plate 31 is formed as an elongated hole, the knock pin N can be inserted into the second knock hole 37 even if the insulating plate 31 is warped due to processing. Therefore, the warp standard required for the insulating plate 31 can be relaxed. As a result, the manufacturing cost of the insulating plate 31 can be reduced.
一方、第１ノック穴３６が丸穴に形成されているので、第１ノック穴３６に挿通されるノックピンＮにより絶縁プレート３１を支持部材１１およびカバー２に対して精度よく位置決めすることができる。そのため、支持部材１１に形成される逃がし空間４１のサイズの縮小を図ることができる。これにより、逃がし空間４１が形成される支持部材１１と絶縁プレート３１との接触面積を大きく確保して、その接触部分に生じる面圧の増大を抑制することができる。 On the other hand, since the first knock hole 36 is formed in a round hole, the insulating plate 31 can be accurately positioned with respect to the support member 11 and the cover 2 by the knock pin N inserted through the first knock hole 36. Therefore, the size of the relief space 41 formed in the support member 11 can be reduced. As a result, a large contact area between the support member 11 on which the relief space 41 is formed and the insulating plate 31 can be secured, and an increase in surface pressure generated at the contact portion can be suppressed.
＜変形例＞
以上、本発明の一実施形態について説明したが、本発明は、他の形態で実施することもできる。
<Modification example>
Although one embodiment of the present invention has been described above, the present invention can also be implemented in other embodiments.
たとえば、絶縁プレート３１は、バリ３８が突出する側を支持部材１１側に向けて、カバー２と支持部材１１との間に介在されるとしたが、バリ３８が突出する側をカバー２側に向けて、カバー２と支持部材１１との間に介在されてもよい。この場合、カバー２にバリ３８との接触を回避するための逃がし空間が形成されるとよい。 For example, the insulating plate 31 is said to be interposed between the cover 2 and the support member 11 with the side on which the burr 38 protrudes toward the support member 11, but the side on which the burr 38 protrudes is on the cover 2 side. It may be interposed between the cover 2 and the support member 11. In this case, it is preferable that the cover 2 is provided with a relief space for avoiding contact with the burr 38.
また、本発明では、カバー２と支持部材１１との絶縁について説明したが、モータ１を収納するケース側に同様の構造を設けてもよい。 Further, in the present invention, the insulation between the cover 2 and the support member 11 has been described, but a similar structure may be provided on the case side for accommodating the motor 1.
また、モータ支持構造３は、ハイブリッド車に限らず、電気自動車に適用されてもよい。 Further, the motor support structure 3 may be applied not only to a hybrid vehicle but also to an electric vehicle.
その他、前述の構成には、特許請求の範囲に記載された事項の範囲で種々の設計変更を施すことが可能である。 In addition, various design changes can be made to the above-mentioned configuration within the scope of the matters described in the claims.
１：モータ
２：カバー
３：モータ支持構造
１１：支持部材
３２：鋼板（基材）
３３，３４：絶縁層
３６：第１ノック穴
３７：第２ノック穴
４１：逃がし空間
Ｌ：直線
1: Motor 2: Cover 3: Motor support structure 11: Support member 32: Steel plate (base material)
33, 34: Insulation layer 36: First knock hole 37: Second knock hole 41: Relief space L: Straight line
Claims (3)
前記支持部材または前記カバーの少なくとも一方に、前記絶縁部材の縁部との接触を回避する逃がし空間が形成されている、モータ支持構造。 An insulating member provided with insulating layers on both sides of a plate-shaped base material is interposed between a support member that rotatably supports the rotor of the motor and a cover that houses the motor, and the support member is attached to the cover. Supported,
A motor support structure in which at least one of the support member or the cover is formed with a relief space for avoiding contact with an edge portion of the insulating member.
前記第２ノック穴は、前記第１ノック穴の中心と前記第２ノック穴の中心とを通る直線の方向に長い長穴である、請求項１に記載のモータ支持構造。 A first knock hole and a second knock hole are formed in the insulating member.
The motor support structure according to claim 1, wherein the second knock hole is an elongated hole long in a straight line direction passing through the center of the first knock hole and the center of the second knock hole.
前記絶縁部材の縁部は、前記支持部材における前記絶縁部材との接触領域のエッジよりも外側に位置している、モータ支持構造。 An insulating member provided with insulating layers on both sides of a plate-shaped base material is interposed between a support member that rotatably supports the rotor of the motor and a cover that houses the motor, and the support member is attached to the cover. Supported,
A motor support structure in which the edge portion of the insulating member is located outside the edge of the contact region of the supporting member with the insulating member.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03135395A (en) * | 1989-10-16 | 1991-06-10 | Nissan Motor Co Ltd | Fan motor |
| JPH07235584A (en) * | 1994-02-23 | 1995-09-05 | Fujitsu Ltd | Device for positioning chip ic |
| JP2001212961A (en) * | 2000-02-04 | 2001-08-07 | Seiko Epson Corp | Piezoelectric vibrator unit, ink-jet type recording head using the same, and method for manufacturing piezoelectric vibrator unit |
| JP2016158437A (en) * | 2015-02-25 | 2016-09-01 | トヨタ自動車株式会社 | Motor enclosure for hybrid vehicle |
| JP2016205939A (en) * | 2015-04-20 | 2016-12-08 | 株式会社川本製作所 | Flow rate detection device |
| JP2019007075A (en) * | 2017-06-28 | 2019-01-17 | 株式会社荏原製作所 | Substrate holder and plating device |
-
2019
- 2019-08-05 JP JP2019143481A patent/JP7158816B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03135395A (en) * | 1989-10-16 | 1991-06-10 | Nissan Motor Co Ltd | Fan motor |
| JPH07235584A (en) * | 1994-02-23 | 1995-09-05 | Fujitsu Ltd | Device for positioning chip ic |
| JP2001212961A (en) * | 2000-02-04 | 2001-08-07 | Seiko Epson Corp | Piezoelectric vibrator unit, ink-jet type recording head using the same, and method for manufacturing piezoelectric vibrator unit |
| JP2016158437A (en) * | 2015-02-25 | 2016-09-01 | トヨタ自動車株式会社 | Motor enclosure for hybrid vehicle |
| JP2016205939A (en) * | 2015-04-20 | 2016-12-08 | 株式会社川本製作所 | Flow rate detection device |
| JP2019007075A (en) * | 2017-06-28 | 2019-01-17 | 株式会社荏原製作所 | Substrate holder and plating device |
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