JP2006304399A - Linear motor - Google Patents

Linear motor Download PDF

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JP2006304399A
JP2006304399A JP2005118273A JP2005118273A JP2006304399A JP 2006304399 A JP2006304399 A JP 2006304399A JP 2005118273 A JP2005118273 A JP 2005118273A JP 2005118273 A JP2005118273 A JP 2005118273A JP 2006304399 A JP2006304399 A JP 2006304399A
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bobbin
resin
coil
linear motor
armature winding
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JP4767581B2 (en
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Shiyoutarou Iwata
彰太郎 岩田
Hiroaki Kusaga
洋明 草賀
Mutsuji Suzuki
睦治 鈴木
Satoshi Yamashiro
諭 山代
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a linear motor which has an armature winding part where the array of a coil is accurate and which is small and light. <P>SOLUTION: In a linear motor 1 which is equipped with a field part 3 where a plurality of magnets 3a are arrayed and an armature winding part 2a which is arranged to face the magnets of the above field part and has a plurality of arrayed bobbins 2d where coils 2c are wound, the armature winding part 2a is molded integrally of resin by providing each bobbin of the above armature winding part with a positioning hole 2f and injecting resin 20 into a mold in condition that the above plurality of bobbins are positioned with the above positioning holes. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、リニアモータに関するものである。   The present invention relates to a linear motor.

従来のリニアモータとして、空芯部を有する複数のコイルと、前記コイルを収容するハウジング部とを備えたリニアモータにおいて、前記コイルの空芯部に配置され、該コイルを前記空芯部で支持する支持部と、前記支持部に設けられ、前記ハウジング部の内壁と接する少なくとも１つの凸部を備え、前記ハウジング部は、枠部材と、該枠部材を両側から挟む複数の板部材とを有し、前記板部材と前記凸部とはネジで固定されているものがある（例えば、特許文献１参照）。   As a conventional linear motor, in a linear motor having a plurality of coils having an air core part and a housing part for housing the coil, the linear motor is disposed on the air core part of the coil, and the coil is supported by the air core part. And at least one convex portion provided on the support portion and in contact with the inner wall of the housing portion, the housing portion having a frame member and a plurality of plate members sandwiching the frame member from both sides. However, there is one in which the plate member and the convex portion are fixed with screws (for example, see Patent Document 1).

また、従来のフラットモータ用電機子として、実質的に平板形状を有し、中央部に中空開口部を有し、当該平板形状の主面に開口する締結用の第１の孔を有し、前記平板形状の外周端面と前記中空開口部の内周端面との間を貫通する第２の孔を有する枠体と、前記枠体の前記外周端面に沿って巻き上げられた電線を有するコイルであって、当該電線の端部の１が前記第２の孔を貫通して前記中空開口部に導かれたコイルと、実質的に平板形状の支持板であって、その主面に開口し前記枠体の前記第１の孔に対向し得る位置に設けられる締結用の第３の孔を有し、前記第１の孔と前記第３の孔とに締結部材を通すことにより、前記コイルと締結固定された支持板とを備えるものがある（例えば、特許文献２参照）。   Moreover, as a conventional armature for a flat motor, it has a substantially flat plate shape, has a hollow opening in the center, and has a first hole for fastening that opens on the main surface of the flat plate, A coil having a frame having a second hole penetrating between the flat plate-shaped outer peripheral end surface and the inner peripheral end surface of the hollow opening, and an electric wire wound up along the outer peripheral end surface of the frame. A coil in which one end portion of the electric wire penetrates the second hole and is led to the hollow opening, and a substantially flat support plate, which opens to the main surface of the coil and Fastening the coil by passing a fastening member through the first hole and the third hole, and having a third hole for fastening provided at a position that can face the first hole of the body Some include a fixed support plate (see, for example, Patent Document 2).

特開２００４−１５９０８号公報JP 2004-15908 A 特開平０６−２７６７１４号公報Japanese Patent Laid-Open No. 06-276714

しかしながら、上記特許文献１に開示された従来のリニアモータは、電機子の複数のコイルを収容するハウジング部が、枠部材と、該枠部材を両側から挟む複数の板部材とを有していて、電機子全体が大きく、部品点数が多く、重いという問題があった。   However, in the conventional linear motor disclosed in Patent Document 1, the housing portion that accommodates the plurality of coils of the armature has a frame member and a plurality of plate members that sandwich the frame member from both sides. The entire armature is large, has a large number of parts, and is heavy.

また、上記特許文献２に開示された従来のフラットモータ用電機子でも、電機子コイルと締結固定された支持板を備えていて、電機子の厚さが、コイルの厚さに加えて支持板の厚さ分増えるため、電機子全体が厚くなり、重量も増し、モータとしての効率が悪くなるという問題があった。さらに、複数の電機子コイルを１列に並べているので、コイルの発生する熱により支持板が伸びたり変形したりして、モータとしての性能が損なわれるという問題があった。   The conventional flat motor armature disclosed in Patent Document 2 also includes a support plate fastened and fixed to the armature coil. The thickness of the armature is in addition to the thickness of the coil. Therefore, there is a problem that the entire armature becomes thicker, the weight increases, and the efficiency as a motor becomes worse. Furthermore, since a plurality of armature coils are arranged in a row, there is a problem that the performance as a motor is impaired due to the support plate extending or deforming due to the heat generated by the coils.

本発明は、上記に鑑みてなされたものであって、コイルの配列が高精度で、小形軽量な電機子巻線部を有するリニアモータを得ることを目的とする。   The present invention has been made in view of the above, and an object of the present invention is to obtain a linear motor having a small and lightweight armature winding portion with a highly accurate coil arrangement.

上述した課題を解決し、目的を達成するために、本発明のリニアモータは、複数の磁石が配列された界磁部と、前記界磁部の磁石と対向するように設置され、コイルが巻装された複数の配列されたボビンを有する電機子巻線部とを備えたリニアモータにおいて、前記電機子巻線部のボビンに位置決め用の孔を設け、前記複数のボビンが前記位置決め用の孔によって位置決めされた状態で、樹脂を注型することにより樹脂一体成型された電機子巻線部を形成したことを特徴とする。   In order to solve the above-described problems and achieve the object, a linear motor of the present invention is installed so as to face a field part in which a plurality of magnets are arranged, and a magnet of the field part, and a coil is wound. A linear motor having a plurality of arranged bobbin armature winding portions, wherein a positioning hole is provided in the bobbin of the armature winding portion, and the plurality of bobbins are the positioning holes. The armature winding part integrally molded with the resin is formed by casting the resin in the state of being positioned by the above.

この発明によれば、複数のボビンが位置決め用の孔によって位置決めされた状態で、樹脂を注型することにより樹脂一体成型された電機子巻線部を形成したので、コイルの配列が高精度で、小形軽量な電機子巻線部を有するリニアモータが得られるという効果を奏する。   According to this invention, since the armature winding part integrally molded with the resin is formed by casting the resin in a state where the plurality of bobbins are positioned by the positioning holes, the coil arrangement is highly accurate. There is an effect that a linear motor having a small and light armature winding portion can be obtained.

以下に、本発明にかかるリニアモータの実施の形態を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。   Embodiments of a linear motor according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

実施の形態１．
図１は、本発明にかかるリニアモータ１の実施の形態１を示す全体斜視図であり、図２−１は、コイル２ｃの斜視図であり、図２−２は、コイル２ｃの側面図であり、図３は、電機子２の成型治具を示す分解斜視図であり、図４−１は、成型治具を組立てた状態を示す断面図であり、図４−２は、成型治具内に樹脂２０を注型した状態を示す断面図であり、図４−３は、成型治具を取外した電機子２の状態を示す断面図であり、図５は、成型された電機子２を示す斜視図である。 Embodiment 1 FIG.
FIG. 1 is an overall perspective view showing a first embodiment of a linear motor 1 according to the present invention, FIG. 2-1 is a perspective view of a coil 2c, and FIG. 2-2 is a side view of the coil 2c. 3 is an exploded perspective view showing a molding jig of the armature 2, FIG. 4-1 is a cross-sectional view showing a state where the molding jig is assembled, and FIG. 4-2 is a molding jig. FIG. 4-3 is a sectional view showing a state of the armature 2 with the molding jig removed, and FIG. 5 is a sectional view of the molded armature 2. FIG.

図１に示すように、リニアモータ１は、長尺Ｕ字溝状のコアの両内壁に２列に、互いに対向させて多数の矩形板状の永久磁石３ａを配列した界磁部３と、複数のコイル２ｃを１列に配列し樹脂で板状に被覆成型した電機子巻線部２ａを垂直にして、下側に凹部２ｎが形成された直方体状の取付部２ｂに樹脂一体成型し、全体をＴ字形に成型した電機子２とを備えている。図示はしないが、取付部２ｂには、他の部材としての搬送器等が取付けられ、電機子２の電磁駆動により移送される。   As shown in FIG. 1, the linear motor 1 includes a field portion 3 in which a large number of rectangular plate-like permanent magnets 3 a are arranged in two rows on both inner walls of a long U-shaped groove-shaped core, A plurality of coils 2c are arranged in a row and the armature winding part 2a covered and molded in a plate shape with resin is made vertical, and the resin is integrally molded into a rectangular parallelepiped mounting part 2b having a recess 2n formed on the lower side, And an armature 2 formed entirely in a T-shape. Although not shown, a transporter or the like as another member is attached to the attachment portion 2b and is transferred by electromagnetic driving of the armature 2.

永久磁石３ａは、１列に並べられ左右隣接する部分の極性が互いに異なるように、配列されている。電機子２の電機子巻線部２ａは、長尺Ｕ字溝状の界磁部３の溝内に挿し込まれ、２列の永久磁石３ａとの間には、それぞれ所定の磁気的空隙（以下、ギャップという。）が設けられ、永久磁石３ａと対向するように設置されている。また、取付部２ｂは、界磁部３の２本のレール状の上端部に所定のギャップを有して対向するように配置される。   The permanent magnets 3a are arranged in a row so that the polarities of the left and right adjacent portions are different from each other. The armature winding portion 2a of the armature 2 is inserted into the groove of the long U-shaped field magnet portion 3, and a predetermined magnetic gap (2) is formed between the two rows of permanent magnets 3a. Hereinafter, it is referred to as a gap) and is disposed so as to face the permanent magnet 3a. The mounting portion 2b is disposed so as to face the two rail-shaped upper ends of the field magnet portion 3 with a predetermined gap.

図２−１及び図２−２に示すように、電機子巻線部２ａを構成するコイル２ｃは、両側に凸部２ｅを有する略矩形厚板状のボビン２ｄに、ボビン２ｄと同じ厚さに巻装されている。凸部２ｅには、互いに離間する２個の位置決め用の孔２ｆが形成されている。凸部２ｅの高さ（突出量）は、後述する、コイル２ｃ及びボビン２ｄの樹脂被覆の厚さと同じとされている。   As shown in FIGS. 2A and 2B, the coil 2c constituting the armature winding portion 2a has a substantially rectangular thick plate-like bobbin 2d having convex portions 2e on both sides, and the same thickness as the bobbin 2d. It is wound around. The convex portion 2e is formed with two positioning holes 2f spaced apart from each other. The height (projection amount) of the convex portion 2e is the same as the resin coating thickness of the coil 2c and the bobbin 2d, which will be described later.

図３に、電機子２を樹脂一体成型する成型治具を示す。左右両端に凸部１６ａを有する成型治具としての基準板１６には、左右方向にコイル２ｃの幅と同じ間隔で、２本ずつ位置決めピン１１が設置されている。位置決めピン１１に、ボビン２ｄの位置決め用の孔２ｆを嵌合し、コイル２ｃ及びボビン２ｄを１列に並べて位置決めする。コイル２ｃ及びボビン２ｄの上部は、基準板１６の上方へ突出している。   FIG. 3 shows a molding jig for integrally molding the armature 2 with resin. On the reference plate 16 as a molding jig having convex portions 16a at both left and right ends, two positioning pins 11 are installed in the left-right direction at the same interval as the width of the coil 2c. The positioning pin 11 is fitted with the positioning hole 2f of the bobbin 2d, and the coil 2c and the bobbin 2d are aligned in one row for positioning. The upper parts of the coil 2c and the bobbin 2d protrude above the reference plate 16.

コイル２ｃ同士を電気結線し、リード線２ｇを取付けた後、成型治具としての合せ板１７を基準板１６の凸部１６ａに重ね、締結ボルト１４を凸部１６ａのネジ穴１５にねじ込んで基準板１６と合せ板１７とを締結する。凹部としてのＵ字溝２ｎが形成された取付部２ｂにコイル２ｃ及びボビン２ｄの上部を挿し込み、取付部２ｂの両下端部を基準板１６及び合せ板１７の上端部に固定し、矩形に形成された成型治具としての底板の上面を基準板１６及び合せ板１７の下端部に固定して成型治具を組立てる。基準板１６、合せ板１７、取付部２ｂ及び底板１２の接合部の隙間をシール材でシールする。   After the coils 2c are electrically connected to each other and the lead wire 2g is attached, the laminated plate 17 as a molding jig is overlaid on the convex portion 16a of the reference plate 16, and the fastening bolt 14 is screwed into the screw hole 15 of the convex portion 16a. The plate 16 and the laminated plate 17 are fastened. The upper part of the coil 2c and the bobbin 2d is inserted into the mounting part 2b in which the U-shaped groove 2n as the concave part is formed, and both lower ends of the mounting part 2b are fixed to the upper end parts of the reference plate 16 and the mating plate 17 to be rectangular. The upper surface of the formed bottom plate as a forming jig is fixed to the lower ends of the reference plate 16 and the laminated plate 17 and the forming jig is assembled. A gap between the reference plate 16, the joining plate 17, the attachment portion 2b, and the bottom plate 12 is sealed with a sealant.

図４−１に示すように、ボビン２ｄは、両側の凸部２ｅの表面を、基準板１６及び合せ板１７の内壁に当接させ、コイル２ｃ及びボビン２ｄと基準板１６及び合せ板１７との間には、凸部２ｅの突出量分の隙間が形成されている。取付部２ｂの側壁は、一方が厚く他方が薄く形成されていて、薄く形成された側壁とコイル２ｃ及びボビン２ｄとの間の隙間は大きくなっている。   As shown in FIG. 4A, the bobbin 2d has the surfaces of the convex portions 2e on both sides in contact with the inner walls of the reference plate 16 and the mating plate 17, and the coil 2c, the bobbin 2d, the reference plate 16 and the mating plate 17, A gap corresponding to the protruding amount of the convex portion 2e is formed between them. One side of the side wall of the mounting portion 2b is thick and the other side is thin, and the gap between the thin side wall and the coil 2c and the bobbin 2d is large.

図４−２に示すように、取付部２ｂの２ヶ所に設けた注入口１３（図３参照）から樹脂を注型し、Ｕ字溝２ｎ内と、コイル２ｃ及びボビン２ｄと成型治具の内壁との間に形成された隙間全てに樹脂を充填して固化させ、コイル２ｃ及びボビン２ｄを被覆して取付部２ｂに固着させ、電機子２（電機子巻線部２ａ）を樹脂一体成型する。図４−３に示すように成型治具を取外すと、図５に示すようなＴ字形の電機子２が成型される。コイル２ｃは、ボビン２ｄに巻装されているので、樹脂の注型圧力によりコイル２ｃが変形するようなことはない。樹脂材料としては、エポキシ樹脂等の合成樹脂を用いる。   As shown in FIG. 4B, the resin is cast from the inlets 13 (see FIG. 3) provided at two places of the mounting portion 2b, and the inside of the U-shaped groove 2n, the coil 2c, the bobbin 2d, and the molding jig Filling and solidifying all the gaps formed between the inner wall and the resin, covering the coil 2c and the bobbin 2d and fixing them to the mounting portion 2b, the armature 2 (armature winding portion 2a) is integrally molded with resin. To do. When the molding jig is removed as shown in FIG. 4-3, a T-shaped armature 2 as shown in FIG. 5 is molded. Since the coil 2c is wound around the bobbin 2d, the coil 2c is not deformed by the casting pressure of the resin. A synthetic resin such as an epoxy resin is used as the resin material.

図５に示すように、ボビン２ｄの凸部２ｅの表面が樹脂被覆された電機子巻線部２ａの表面に露出しているので、ボビン２ｄを、アルミニウム等の非磁性・高伝熱材で製作することにより、電機子２の放熱効率を高めることができる。   As shown in FIG. 5, since the surface of the convex part 2e of the bobbin 2d is exposed on the surface of the armature winding part 2a coated with resin, the bobbin 2d is made of a nonmagnetic / high heat transfer material such as aluminum. By manufacturing, the heat dissipation efficiency of the armature 2 can be increased.

実施の形態２．
図６は、本発明にかかるリニアモータの実施の形態２の電機子４を示す斜視図であり、図７は、コイル４ｃの斜視図であり、図８は、電機子４の成型治具を示す分解斜視図であり、図９−１は、成型治具を組立てた状態を示す断面図であり、図９−２は、成型治具内に樹脂２０を注型した状態を示す断面図であり、図９−３は、成型治具を取外した状態を示す断面図である。 Embodiment 2. FIG.
6 is a perspective view showing the armature 4 of the second embodiment of the linear motor according to the present invention, FIG. 7 is a perspective view of the coil 4c, and FIG. 8 shows a molding jig of the armature 4. FIG. 9A is a cross-sectional view illustrating a state where the molding jig is assembled, and FIG. 9B is a cross-sectional view illustrating a state where the resin 20 is cast into the molding jig. FIG. 9C is a cross-sectional view showing a state where the molding jig is removed.

図６に示すように、実施の形態２の電機子４は、複数のコイル４ｃを１列に配列し樹脂で板状に被覆成型した電機子巻線部４ａを垂直にして、下側に凹部２ｎが形成された直方体状の取付部２ｂに樹脂一体成形し、全体をＴ字形に成型している。図示はしないが、取付部２ｂには、他の部材としての搬送器等が取付けられ、電機子４の電磁駆動により搬送される。   As shown in FIG. 6, the armature 4 according to the second embodiment has a plurality of coils 4c arranged in a row and the armature winding portion 4a formed by covering and molding the resin with a plate in a vertical shape, with a concave portion on the lower side. The resin is integrally formed on the rectangular parallelepiped mounting portion 2b on which 2n is formed, and the whole is formed into a T-shape. Although not shown, a transporter or the like as another member is attached to the mounting portion 2b and transported by electromagnetic driving of the armature 4.

電機子４の電機子巻線部４ａは、図１に示すＵ字溝状の界磁部３の溝内に挿し込まれ、２列の永久磁石３ａとの間には、それぞれ所定のギャップが設けられている。電機子巻線部４ａの下端部両側には、電機子巻線部４ａの全長に亘ってガイドプレート１８が固着される。ガイドプレート１８は、樹脂注型時にコイル４ｃを挟み込み、その取付位置を保持する役割を有している。また、ガイドプレート１８は、アルミニウム等の金属材料にすることにより、電機子４の放熱に寄与する。取付部２ｂは、界磁部３の２本のレール状の上端部に所定のギャップを有して対向するように配置される。   The armature winding portion 4a of the armature 4 is inserted into the groove of the U-shaped groove-shaped field portion 3 shown in FIG. 1, and a predetermined gap is formed between each of the two rows of permanent magnets 3a. Is provided. Guide plates 18 are fixed to both sides of the lower end portion of the armature winding portion 4a over the entire length of the armature winding portion 4a. The guide plate 18 has a role of sandwiching the coil 4c at the time of resin casting and holding the mounting position. Further, the guide plate 18 contributes to heat dissipation of the armature 4 by using a metal material such as aluminum. The mounting portion 2b is disposed so as to face the two rail-shaped upper ends of the field magnet portion 3 with a predetermined gap.

図７に示すように、電機子巻線部４ａを構成するコイル４ｃは、略矩形厚板状のボビン４ｄに、ボビン４ｄと同じ厚さに巻装されている。ボビン４ｄには、互いに離間する２個の位置決め用の孔２ｆが形成されている。ボビン４ｄには、図２−１に示すボビン２ｄの凸部２ｅのような凸部は形成されていない。   As shown in FIG. 7, the coil 4c constituting the armature winding portion 4a is wound around a bobbin 4d having a substantially rectangular thick plate to the same thickness as the bobbin 4d. The bobbin 4d is formed with two positioning holes 2f that are separated from each other. The bobbin 4d is not formed with a convex portion such as the convex portion 2e of the bobbin 2d shown in FIG.

図８に、電機子４を樹脂一体成型する成型治具を示す。成型治具としての基準板２６の上下方向の中央部には、左右方向の段部２６ａが形成され、段部２６ａには、左右方向にコイル４ｃの幅と同じ間隔で、２個ずつの位置決め孔２６ｂが設けられ、位置決め孔２６ｂには、段付ピン２１が挿入されている。段付ピン２１に、ボビン４ｄの位置決め用の孔２ｆを嵌合し、コイル４ｃ及びボビン４ｄを１列に並べて固定する。コイル４ｃ及びボビン４ｄの上部及び下部は、段部２６ａの上方及び下方へ突出している。前述のガイドプレート１８は、コイル４ｃ及びボビン４ｄの下部を挟むようにして段部２６ａの下側角部に配置される。   FIG. 8 shows a molding jig for integrally molding the armature 4 with resin. A step part 26a in the left-right direction is formed at the center in the vertical direction of the reference plate 26 as a forming jig, and two pieces are positioned in the step part 26a at the same interval as the width of the coil 4c in the left-right direction. A hole 26b is provided, and a stepped pin 21 is inserted into the positioning hole 26b. The bobbin 4d positioning hole 2f is fitted to the stepped pin 21, and the coil 4c and the bobbin 4d are arranged and fixed in a row. The upper and lower portions of the coil 4c and the bobbin 4d protrude upward and downward from the step portion 26a. The aforementioned guide plate 18 is disposed at the lower corner of the step portion 26a so as to sandwich the lower portions of the coil 4c and the bobbin 4d.

コイル４ｃ同士を電気結線し、リード線２ｇを取付けた後、凹部としてのＵ字溝２ｎが形成された取付部２ｂは、コイル４ｃ及びボビン４ｄの上部を挿し込むようにして、段部２６ａの上側角部に配置される。図９−１に示すように、取付部２ｂの側壁は、一方が厚く他方が薄く形成されていて、薄く形成された側壁とコイル４ｃ及びボビン４ｄとの間の隙間は大きくなっている。薄く形成された側壁にボルトの頭が通る通し孔２ｈを設け、厚く形成された側壁にネジ孔２ｉを設け、コイル４ｃ及びボビン４ｄの両側に絶縁スペーサ３１を当て、通し孔２ｈ、絶縁スペーサ３１及びボビン４ｄの上部に設けた通し孔を通してボルト４０をネジ穴２ｉにねじ込んでコイル４ｃ及びボビン４ｄを取付部２ｂに締結する。   After the coils 4c are electrically connected to each other and the lead wire 2g is attached, the attachment portion 2b in which the U-shaped groove 2n is formed as a recess is inserted into the upper portion of the step portion 26a so as to insert the upper portions of the coil 4c and the bobbin 4d. Placed in the section. As shown in FIG. 9A, one side of the side wall of the attachment portion 2b is thick and the other side is thin, and the gap between the thin side wall and the coil 4c and the bobbin 4d is large. A through hole 2h through which the head of the bolt passes is formed in the thin side wall, a screw hole 2i is provided in the thick side wall, the insulating spacer 31 is applied to both sides of the coil 4c and the bobbin 4d, and the through hole 2h and the insulating spacer 31 are provided. And the bolt 40 is screwed into the screw hole 2i through the through-hole provided in the upper part of the bobbin 4d, and the coil 4c and the bobbin 4d are fastened to the attachment part 2b.

図９−１に示すように、コイル４ｃ及びボビン４ｄは、絶縁スペーサ３１、段付ピン２１の段部及びガイドプレート１８により支持されて、基準板２６との間の隙間が形成されている。基準板２６の反対側から、成型治具としての合せ板２７をコイル４ｃ及びボビン４ｄに重ねる。合せ板２７の上下方向の中央部には、左右方向の段部２７ａが形成され、取付部２ｂの薄く形成された側壁が段部２７ａの上側角部に配置され、ガイドプレート１８の他方が、コイル４ｃ及びボビン４ｄの下部を挟むようにして段部２７ａの下側角部に配置される。合せ板２７とコイル４ｃ及びボビン４ｄとの間にも隙間が形成されている。   As illustrated in FIG. 9A, the coil 4 c and the bobbin 4 d are supported by the insulating spacer 31, the step portion of the stepped pin 21, and the guide plate 18, and a gap between the reference plate 26 is formed. From the opposite side of the reference plate 26, a laminated plate 27 as a molding jig is placed on the coil 4c and the bobbin 4d. A step portion 27a in the left-right direction is formed at the center in the vertical direction of the laminated plate 27, the thinly formed side wall of the mounting portion 2b is disposed at the upper corner of the step portion 27a, and the other of the guide plate 18 is The coil 4c and the bobbin 4d are disposed at the lower corners of the stepped portion 27a so as to sandwich the lower portions thereof. A gap is also formed between the mating plate 27 and the coil 4c and the bobbin 4d.

矩形に形成された成型治具としての底板２２を下方から基準板２６と合せ板２７の間に挿入してガイドプレート１８の下側に当て、成型治具としてのＨ形の２枚の側板２８を、基準板２６及び合せ板２７の左右端部に当て、締結ボルト１４をネジ穴１５にねじ込んで成形治具を組立てる。合せ板２７の下部に設けたネジ穴２７ｂに押えボルト２４をねじ込み、ガイドプレート１８を基準板２６に押えつける。   A bottom plate 22 as a forming jig formed in a rectangular shape is inserted between the reference plate 26 and the laminated plate 27 from below and applied to the lower side of the guide plate 18 to form two H-shaped side plates 28 as forming jigs. Are applied to the left and right ends of the reference plate 26 and the laminated plate 27, and the fastening bolts 14 are screwed into the screw holes 15 to assemble the forming jig. A presser bolt 24 is screwed into a screw hole 27 b provided in the lower part of the mating plate 27, and the guide plate 18 is pressed against the reference plate 26.

この状態で段付ピン２１を抜き、代わりに封止ピン９を位置決め孔２６ｂに挿入し位置決め孔２６ｂを封止する。基準板２６、合せ板２７、取付部２ｂ、底板２２及び側板２８の接合部の隙間をシール材でシールする。   In this state, the stepped pin 21 is pulled out, and instead the sealing pin 9 is inserted into the positioning hole 26b to seal the positioning hole 26b. A gap between the reference plate 26, the laminated plate 27, the mounting portion 2b, the bottom plate 22, and the side plate 28 is sealed with a sealing material.

図９−２に示すように、取付部２ｂの２ヶ所に設けた注入口１３（図８参照）から樹脂２０を注型し、Ｕ字溝２ｎ内と、コイル４ｃ及びボビン４ｄと成型治具の内壁との間に形成された隙間全てに樹脂２０を注型して固化させ、コイル４ｃ及びボビン４ｄをモールドして取付部２ｂに固着させ、電機子４（電機子巻線部４ａ）を樹脂一体成型する。図９−３に示すように成型治具を取外すと、図６に示すようなＴ字形の電機子４が成型される。コイル４ｃは、ボビン４ｄに巻装されているので、樹脂の注型圧力によりコイル４ｃが変形するようなことはない。電機子巻線部４ａでは、ボビン４ｄの位置決め用の孔２ｆは、樹脂２０で塞がれる。実施の形態２の電機子巻線部４ａは、コイル４ｃ及びボビン４ｄの全面が樹脂２０で覆われ、ボビン４ｄや位置決め用の孔２ｆが露出しないので意匠性に優れている。   As shown in FIG. 9-2, the resin 20 is cast from the injection ports 13 (see FIG. 8) provided at two places of the mounting portion 2b, and the inside of the U-shaped groove 2n, the coil 4c, the bobbin 4d, and the molding jig. The resin 20 is cast and solidified in all the gaps formed between the inner wall and the coil 4c and the bobbin 4d are molded and fixed to the mounting portion 2b, and the armature 4 (armature winding portion 4a) is fixed. Molded with resin. When the molding jig is removed as shown in FIG. 9-3, a T-shaped armature 4 as shown in FIG. 6 is molded. Since the coil 4c is wound around the bobbin 4d, the coil 4c is not deformed by the casting pressure of the resin. In the armature winding portion 4 a, the positioning hole 2 f of the bobbin 4 d is closed with the resin 20. The armature winding portion 4a of the second embodiment is excellent in design because the entire surface of the coil 4c and the bobbin 4d is covered with the resin 20, and the bobbin 4d and the positioning hole 2f are not exposed.

以上のように、本発明にかかるリニアモータは、小形軽量、高効率を要求されるリニアモータに適している。   As described above, the linear motor according to the present invention is suitable for a linear motor that is required to be small and light and have high efficiency.

本発明にかかるリニアモータの実施の形態１を示す全体斜視図である。1 is an overall perspective view showing a first embodiment of a linear motor according to the present invention. コイルの斜視図である。It is a perspective view of a coil. コイルの側面図である。It is a side view of a coil. 電機子の成型治具を示す分解斜視図である。It is a disassembled perspective view which shows the shaping | molding jig | tool of an armature. 成型治具を組立てた状態を示す断面図である。It is sectional drawing which shows the state which assembled the shaping | molding jig | tool. 成型治具内に樹脂を注入した状態を示す断面図である。It is sectional drawing which shows the state which inject | poured resin in the shaping | molding jig | tool. 成型治具を取外した電機子の状態を示す断面図である。It is sectional drawing which shows the state of the armature which removed the shaping | molding jig | tool. 成型された電機子を示す斜視図である。It is a perspective view which shows the molded armature. 本発明にかかるリニアモータの実施の形態２の電機子を示す斜視図である。It is a perspective view which shows the armature of Embodiment 2 of the linear motor concerning this invention. コイルの斜視図である。It is a perspective view of a coil. 電機子の成型治具を示す分解斜視図である。It is a disassembled perspective view which shows the shaping | molding jig | tool of an armature. 成型治具を組立てた状態を示す断面図である。It is sectional drawing which shows the state which assembled the shaping | molding jig | tool. 成型治具内に樹脂を注入した状態を示す断面図である。It is sectional drawing which shows the state which inject | poured resin in the shaping | molding jig | tool. 成型治具を取外した電機子の状態を示す断面図である。It is sectional drawing which shows the state of the armature which removed the shaping | molding jig | tool.

符号の説明Explanation of symbols

１ リニアモータ
２，４ 電機子
２ａ，４ａ 電機子巻線部
２ｂ 取付部
２ｃ，４ｃ コイル
２ｄ，４ｄ ボビン
２ｅ 凸部
２ｆ 位置決め用の孔
２ｎ Ｕ字溝（凹部）
３ 界磁部
３ａ 永久磁石（磁石）
１１ 位置決めピン
１２，２２ 底板（成型治具）
１６，２６ 基準板（成型治具）
１７，２７ 合せ板（成型治具）
２０ 樹脂
２１ 段付ピン
２８ 側板（成型治具） DESCRIPTION OF SYMBOLS 1 Linear motor 2, 4 Armature 2a, 4a Armature winding part 2b Mounting part 2c, 4c Coil 2d, 4d Bobbin 2e Convex part 2f Positioning hole 2n U-shaped groove (concave part)
3 Field part 3a Permanent magnet (magnet)
11 Positioning pins 12, 22 Bottom plate (molding jig)
16, 26 Reference plate (molding jig)
17, 27 Laminated plate (molding jig)
20 resin 21 stepped pin 28 side plate (molding jig)

Claims (6)

複数の磁石が配列された界磁部と、前記界磁部の磁石と対向するように設置され、コイルが巻装された複数の配列されたボビンを有する電機子巻線部とを備えたリニアモータにおいて、
前記電機子巻線部のボビンに位置決め用の孔を設け、前記複数のボビンが前記位置決め用の孔によって位置決めされた状態で、樹脂を注型することにより樹脂一体成型された電機子巻線部を形成したことを特徴とするリニアモータ。 Linear comprising: a field part in which a plurality of magnets are arranged; and an armature winding part that is installed so as to face the magnets in the field part and has a plurality of arranged bobbins around which coils are wound In the motor
An armature winding portion formed by integral molding of resin by casting a resin in a state in which positioning holes are provided in the bobbin of the armature winding portion and the plurality of bobbins are positioned by the positioning holes. A linear motor characterized in that it is formed. 前記電機子巻線部は、他の部材に取り付けるための取付部を有し、この取付部も共に樹脂一体成型することを特徴とする請求項１に記載のリニアモータ。   The linear motor according to claim 1, wherein the armature winding portion has an attachment portion for attachment to another member, and the attachment portion is also integrally molded with resin. 前記ボビンは両側に凸部を有し、該凸部の表面は前記樹脂一体成型時に成型治具の内壁に当接し、成型後に前記凸部の表面が樹脂表面に露出することを特徴とする請求項１又は２に記載のリニアモータ。   The bobbin has convex portions on both sides, and a surface of the convex portion abuts against an inner wall of a molding jig during the resin integral molding, and the surface of the convex portion is exposed to the resin surface after molding. Item 3. The linear motor according to item 1 or 2. 前記ボビンの厚さは前記コイルの厚さと同一であり、前記ボビンの凸部の高さが前記コイル及びボビンを被覆する樹脂の厚さと同一であることを特徴とする請求項１〜３のいずれか一つに記載のリニアモータ。   The thickness of the bobbin is the same as the thickness of the coil, and the height of the convex portion of the bobbin is the same as the thickness of the resin covering the coil and the bobbin. The linear motor as described in one. 前記コイル及びボビン全面が前記樹脂で覆われ、前記ボビンの位置決め用の孔が前記樹脂で塞がれていることを特徴とする請求項１又は２に記載のリニアモータ。   The linear motor according to claim 1 or 2, wherein the entire surface of the coil and bobbin is covered with the resin, and a positioning hole of the bobbin is closed with the resin. 前記ボビンは、アルミニウム材で形成されていることを特徴とする請求項１〜５のいずれか一つに記載のリニアモータ。   The linear motor according to claim 1, wherein the bobbin is made of an aluminum material.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008160955A (en) * 2006-12-22 2008-07-10 Mitsubishi Electric Corp Linear motor and bobbin for linear motor armature
JP2008283745A (en) * 2007-05-08 2008-11-20 Sumitomo Heavy Ind Ltd Linear motor and manufacturing method of same
JP2010130843A (en) * 2008-11-28 2010-06-10 Thk Co Ltd Coreless linear motor
JP2012147627A (en) * 2011-01-14 2012-08-02 Thk Co Ltd Linear motor and manufacturing method of the same
JP2016025812A (en) * 2014-07-24 2016-02-08 株式会社安川電機 Coreless linear motor armature, coreless linear motor, and method for manufacturing coreless linear motor armature
KR101654851B1 (en) * 2015-05-26 2016-09-06 주식회사 져스텍 A Linear Motor Coil and A Mold For Manufacturing The Same
JP2021014795A (en) * 2019-07-10 2021-02-12 パナソニックＩｐマネジメント株式会社 Turbo fan

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JPH09154272A (en) * 1995-11-28 1997-06-10 Nippon Seiko Kk Cooling structure of linear motor
JP2003061330A (en) * 2001-08-20 2003-02-28 Yaskawa Electric Corp Linear motor
JP2003234235A (en) * 2002-02-06 2003-08-22 Hitachi Metals Ltd Method of manufacturing molded coil, molded coil, and relative moving device

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JPS5385313A (en) * 1977-01-05 1978-07-27 Olympus Optical Co Ltd Rotor of coreless motor and its manufacturing method
JPH09154272A (en) * 1995-11-28 1997-06-10 Nippon Seiko Kk Cooling structure of linear motor
JP2003061330A (en) * 2001-08-20 2003-02-28 Yaskawa Electric Corp Linear motor
JP2003234235A (en) * 2002-02-06 2003-08-22 Hitachi Metals Ltd Method of manufacturing molded coil, molded coil, and relative moving device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008160955A (en) * 2006-12-22 2008-07-10 Mitsubishi Electric Corp Linear motor and bobbin for linear motor armature
JP2008283745A (en) * 2007-05-08 2008-11-20 Sumitomo Heavy Ind Ltd Linear motor and manufacturing method of same
JP2010130843A (en) * 2008-11-28 2010-06-10 Thk Co Ltd Coreless linear motor
JP2012147627A (en) * 2011-01-14 2012-08-02 Thk Co Ltd Linear motor and manufacturing method of the same
JP2016025812A (en) * 2014-07-24 2016-02-08 株式会社安川電機 Coreless linear motor armature, coreless linear motor, and method for manufacturing coreless linear motor armature
KR101654851B1 (en) * 2015-05-26 2016-09-06 주식회사 져스텍 A Linear Motor Coil and A Mold For Manufacturing The Same
JP2021014795A (en) * 2019-07-10 2021-02-12 パナソニックＩｐマネジメント株式会社 Turbo fan

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