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JPH0739292U - Linear DC motor - Google Patents

Linear DC motor

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Publication number
JPH0739292U
JPH0739292U JP7421093U JP7421093U JPH0739292U JP H0739292 U JPH0739292 U JP H0739292U JP 7421093 U JP7421093 U JP 7421093U JP 7421093 U JP7421093 U JP 7421093U JP H0739292 U JPH0739292 U JP H0739292U
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JP
Japan
Prior art keywords
armature
screw
hole
magnetic
linear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7421093U
Other languages
Japanese (ja)
Inventor
幸治 小原
木 学 白
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Thompson Co Ltd
Original Assignee
Nippon Thompson Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Thompson Co Ltd filed Critical Nippon Thompson Co Ltd
Priority to JP7421093U priority Critical patent/JPH0739292U/en
Publication of JPH0739292U publication Critical patent/JPH0739292U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】 【目的】 螺子を用いてコアレス電機子を螺子止め固定
するに当たって,螺子の頭部によりエアギャップを増長
しないようにすると共に特別高価になる非磁性体カラ−
を用いなくて済むようすること。 【構成】 螺子穴と対向する上記非磁性体基板に非磁性
体でできた皿螺子の頭部の係合傾斜面と略一致する逆末
広がりの係合傾斜面を持つ透孔を形成し,非磁性体基板
と電機子配設部材間に係合傾斜面及び透孔を有する非磁
性体カラ−を介在し,上記透孔に皿螺子の係合傾斜面を
上記透孔の係合傾斜面と一致させ且つ皿螺子の螺子部を
上記電機子配設部材に形成した螺子穴に螺合する。
(57) [Abstract] [Purpose] When fixing a coreless armature with a screw, the head of the screw does not increase the air gap, and the non-magnetic body color becomes extra expensive.
Do not need to use. A through hole is formed on the non-magnetic substrate facing the screw hole, the through-hole having an engaging inclined surface with a reverse end spread that substantially matches the engaging inclined surface of the head of the flat head screw made of a non-magnetic material. A non-magnetic body color having an engaging inclined surface and a through hole is interposed between the magnetic substrate and the armature disposing member, and the engaging inclined surface of the countersunk screw serves as the engaging inclined surface of the through hole in the through hole. The screw parts of the countersunk screws are matched with each other and screwed into the screw holes formed in the armature disposing member.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は,プリント配線基板等の非磁性体基板に取り付けたコアレス電機子を 電機子配設部材に螺子を用いて取り付け固定する場合に,上記螺子を用いた場合 でもその螺子の頭部が非磁性体基板面から突出しないようにして界磁マグネット 間のエアギャップを増長をなくし推力効率を高くすること,及び上記非磁性体基 板と電機子配設部材間に安価な筒状非磁性体カラ−を介在して補強するのみで比 較的大きな形状の電機子コイルを用いた場合でも,上記非磁性体基板のたわみを 防止できるようにすることで,当該非磁性体基板全体の波打ちを防止し,当該非 磁性体基板と界磁マグネット間のエアギャップの均一化を図るように構成したリ ニア直流モ−タ,例えば可動マグネット形リニア直流ブラシレスモ−タを得るこ とを容易にしたものに関する。 According to the present invention, when a coreless armature attached to a non-magnetic substrate such as a printed wiring board is attached and fixed to the armature disposing member with a screw, even if the above screw is used, the head of the screw is not attached. To prevent the air gap between the field magnets from increasing so as not to protrude from the surface of the magnetic body substrate to improve thrust efficiency, and to provide an inexpensive tubular non-magnetic body between the non-magnetic base plate and the armature mounting member. Even when an armature coil having a relatively large shape is used only by reinforcing it by interposing a color, it is possible to prevent the deflection of the non-magnetic substrate so that the corrugation of the entire non-magnetic substrate is prevented. It is easy to obtain a linear DC motor, such as a movable magnet type linear DC brushless motor, which is configured to prevent the above and to make the air gap between the non-magnetic substrate and the field magnet uniform. On the.

【0002】[0002]

【従来技術】[Prior art]

図3乃至図5は従来の多極多相型のリニア直流モ−タとしての可動マグネット 形リニア直流ブラシレスモ−タ1−1で,これについて以下に説明する。この可 動マグネット形リニア直流ブラシレスモ−タ1−1は,主に移動子を構成するス ライダ2と,固定子を構成する直動案内レ−ル3からなる。 3 to 5 show a movable magnet type linear DC brushless motor 1-1 as a conventional multi-pole / multi-phase type linear DC motor, which will be described below. The movable magnet type linear DC brushless motor 1-1 is mainly composed of a slider 2 which constitutes a moving element and a linear guide rail 3 which constitutes a stator.

【0003】 直動案内レ−ル3は,固定側のステ−タヨ−クを兼ねるために磁性体でできた ものを用いており,スライダ2の移動方向に沿ってコアレスステ−タ電機子4を 収納するためにスライダ2の移動方向と直交する断面が略凹部となっている電機 子収納用凹部5を形成している。The linear guide rail 3 is made of a magnetic material in order to serve also as a stator yoke on the fixed side. The coreless stator armature 4 is arranged along the moving direction of the slider 2. An armature-accommodating concave portion 5 is formed in which a cross section perpendicular to the moving direction of the slider 2 is a concave portion for accommodating.

【0004】 電機子収納凹部5上面には,絶縁シ−ト22[第4図参照]を設けて後記する 電機子コイル8と直動案内レ−ル3との電気的絶縁処理を行っている。この場合 ,直動案内レ−ル3が磁性体でできたものでない場合には,磁性体板を介した後 に,上記絶縁シ−ト22を設けるとよい。An insulating sheet 22 [see FIG. 4] is provided on the upper surface of the armature housing recess 5 to electrically insulate the armature coil 8 and the linear motion guide rail 3 described later. . In this case, when the linear motion guide rail 3 is not made of a magnetic material, the insulating sheet 22 is preferably provided after the magnetic material plate is interposed.

【0005】 直動案内レ−ル3の両レ−ル側面6に当該直動案内レ−ル3の長手方向に沿っ て延びた負荷用の軌道溝7を形成している。On both rail side surfaces 6 of the linear guide rail 3, a load raceway groove 7 extending along the longitudinal direction of the linear guide rail 3 is formed.

【0006】 上記直動案内レ−ル3の電機子収納用凹部5の上面部には,スライダ2の移動 方向に沿って複数個の空心型の電機子コイル8群を重畳しないように隣接配設し てコアレス構造のコアレスステ−タ電機子4を収納配設している。On the upper surface of the armature housing recess 5 of the linear motion guide rail 3, a plurality of air-core type armature coils 8 are arranged so as not to overlap each other along the moving direction of the slider 2. A coreless stator armature 4 having a coreless structure is housed and arranged.

【0007】 電機子コイル8について説明すると,この電機子コイル8は,矩形枠状の空心 型のものとなるように導線を用いて多数タ−ン巻回して形成されたものであるが ,プリント手段,めっき手段あるいはエッチング手段を用いたシ−トコイル等に て形成したものでも良い。The armature coil 8 will be described. The armature coil 8 is formed by winding a large number of turns using a conductive wire so as to be an air-core type having a rectangular frame shape. It may be formed as a sheet coil using a means, a plating means or an etching means.

【0008】 かかる空心型の電機子コイル8群によると,効率及び性能の良好なリニア往復 180度通電方式を採用することができるように,スライダ2の走行方向と直交 する方向に延びた推力の発生に寄与する2つの有効導体部8aと8aとの開角が ,後記する界磁マグネット9のスライダ2の走行方向における一磁極幅をTとす る時,該一磁極幅Tの開角となるように巻線形成されている。According to the air-core type armature coil group 8 as described above, the thrust force extending in the direction orthogonal to the traveling direction of the slider 2 can be adopted so that the linear reciprocating 180-degree energization method with good efficiency and performance can be adopted. When the open angle between the two effective conductor portions 8a and 8a that contributes to the generation is T, where one magnetic pole width in the traveling direction of the slider 2 of the field magnet 9 described later is T, The winding is formed so that

【0009】 尚,電機子コイル8において,スライダ2の移動方向と平行な2つの導体部8 bは,あまり推力の発生に寄与しない導体部となっている。また電機子コイル8 は,上記推力の発生に寄与しない2つの導体部8bと導体部8bの外側までの長 さが,界磁マグネット9のその方向の幅と同じ長さのものに形成している。In the armature coil 8, the two conductor portions 8 b parallel to the moving direction of the slider 2 are conductor portions that do not contribute much to the generation of thrust. The armature coil 8 is formed such that the length between the two conductor portions 8b that do not contribute to the generation of the thrust and the outside of the conductor portion 8b is the same as the width of the field magnet 9 in that direction. There is.

【0010】 上記コアレスステ−タ電機子4を形成するそれぞれの電機子コイル8群の上面 には,ほぼ電機子コイル8と同程度の長手方向の幅があり且つ,塵等の侵入を防 ぐように電機子4を保護するために横幅が若干広い面積の長板状のプリント配線 基板10を螺子23によって螺子止め固定している。該プリント配線基板10に は,図示しないプリント配線用導電パタ−ンが形成され,このパタ−ンを介して 電機子コイル8群及び界磁マグネット9の磁極状態に応じて電機子コイル8群の 通電の切り換えを行うための位置検知用としてのホ−ル素子等の磁極判別素子2 1に電源を供給すると共に,出力信号を得るようにしている。The upper surface of each armature coil 8 group forming the coreless stator armature 4 has a longitudinal width almost equal to that of the armature coil 8 and prevents intrusion of dust and the like. Further, in order to protect the armature 4, a long plate-shaped printed wiring board 10 having a slightly larger lateral width is screwed and fixed by a screw 23. A printed wiring conductive pattern (not shown) is formed on the printed wiring board 10, and the armature coil 8 group and the armature coil 8 group are formed in accordance with the magnetic pole states of the armature coil 8 and the field magnet 9 through this pattern. Power is supplied to the magnetic pole discriminating element 21 such as a hall element for position detection for switching energization, and an output signal is obtained.

【0011】 上記磁極判別素子21としては,ホ−ルIC,ホ−ル素子,磁気抵抗素子等の 適宜な磁電変換素子を用いれば良い。磁極判別素子21群は,それぞれ電機子コ イル8の発生推力に寄与する導体部8aと該導体部8aと直交して形成された推 力の発生に寄与しない導体部8bとが交叉する導体部延長線上の界磁マグネット 9と対向する上記プリント配線基板10の下面位置に配設し,上記界磁マグネッ ト9のN極,S極の磁極を検出することができるようにしている。磁極判別素子 21からの,上記界磁マグネット9のN極,S極の磁極に応じた出力信号に基づ いて図示しない通電制御回路内のドライバ−が作動して所定方向の推力が発生す るように上記電機子コイル8群に適宜方向の通電を行うようにしている。As the magnetic pole discriminating element 21, an appropriate magnetoelectric conversion element such as a hall IC, a hall element, or a magnetoresistive element may be used. The magnetic pole discriminating element 21 group includes a conductor portion where a conductor portion 8a that contributes to the thrust generated by the armature coil 8 and a conductor portion 8b that is orthogonal to the conductor portion 8a and that does not contribute to thrust generation intersect. It is arranged on the lower surface of the printed wiring board 10 facing the field magnet 9 on the extension line so that the magnetic poles of the N pole and the S pole of the field magnet 9 can be detected. Based on the output signal from the magnetic pole discriminating element 21 corresponding to the magnetic poles of the N pole and the S pole of the field magnet 9, a driver in an energization control circuit (not shown) operates to generate thrust in a predetermined direction. Thus, the armature coils 8 are energized in the appropriate direction.

【0012】 上記直動案内レ−ル3には,その電機子収納用凹部5と平行にリニア磁気エン コ−ダ用スケ−ル12を収納するためのリニア磁気エンコ−ダ用スケ−ル収納溝 13を形成し,該リニア磁気エンコ−ダ用スケ−ル収納溝13にリニア磁気エン コ−ダ用スケ−ル12を接着剤などを用いて取り付けしている。The linear motion guide rail 3 accommodates a linear magnetic encoder scale 12 for accommodating a linear magnetic encoder scale 12 in parallel with the armature accommodating recess 5. A groove 13 is formed, and the linear magnetic encoder scale 12 is attached to the linear magnetic encoder scale housing groove 13 by using an adhesive or the like.

【0013】 スライダ2は,適宜な材質のものでできており,下面には,当該スライダ2の 走行方向から見た形状が逆凹部状に形成された界磁マグネット9の磁路閉成用の 磁性体でできたマグネットヨ−ク11を固定しており,その両側には,螺子19 等によってL字形のスライドユニット24を取り付けている。The slider 2 is made of an appropriate material, and has a lower surface for closing the magnetic path of a field magnet 9 formed in an inverted recessed shape when viewed from the running direction of the slider 2. A magnet yoke 11 made of a magnetic material is fixed, and L-shaped slide units 24 are attached to both sides of the magnet yoke 11 with screws 19 or the like.

【0014】 スライドユニット24の両側内面には,上記直動案内レ−ル3に形成した負荷 用の軌道溝7と対向し,且つスライダ2の移動方向に沿った長手方向に延びる負 荷用の軌道溝15を形成しており,上記軌道溝7と15間に転動体(ガイドボ− ル)16群を介在し,軌道溝7,15及び転動体16群によって軌道溝7の長手 方向に沿ってスライダ2がスム−ズに移動できるように構成されている。On both inner surfaces of both sides of the slide unit 24, a load bearing groove 7 formed in the linear motion guide rail 3 is opposed and a load extending in the longitudinal direction along the moving direction of the slider 2 is provided. A raceway groove 15 is formed. A group of rolling elements (guide balls) 16 are interposed between the raceway grooves 7 and 15, and the raceway grooves 7 and 15 and the group of rolling elements 16 extend along the longitudinal direction of the raceway groove 7. The slider 2 is configured to be able to move smoothly.

【0015】 上記スライドユニット24は,軌道溝15の外側位置の内部に上記軌道溝7と 15とに連通し,上記転動体16のエンドギャップによる方向転換と往復転動を 許すリタ−ン路25を形成して,転動自在に転動体16を内蔵した無限循環通路 を形成している。The slide unit 24 communicates with the raceway grooves 7 and 15 inside the outer side of the raceway groove 15, and a return path 25 that allows the direction change and the reciprocal rolling by the end gap of the rolling element 16. To form an infinite circulation passage in which the rolling element 16 is incorporated so that it can roll freely.

【0016】 マグネットヨ−ク11は,上記直動案内レ−ル3の電機子収納用凹部5面との 間の空隙長(磁気空隙長)が平行になるように構成された上記電機子4と対向す る平面状下部内面17を持ち,この下部内面17面の上記電機子4と対向する面 に界磁マグネット9を設けて相対的移動するように構成している。The magnet yoke 11 is structured such that the air gap length (magnetic air gap length) between the linear motion guide rail 3 and the surface of the armature housing recess 5 is parallel. It has a planar lower inner surface 17 facing the above, and a field magnet 9 is provided on the surface of the lower inner surface 17 facing the armature 4 for relative movement.

【0017】 マグネットヨ−ク11の下部内面17面には,上記スライダ2の移動方向に沿 って隣り配置の磁極が異極となるようにN極,S極の磁極をP(Pは2以上の整 数)個備えて,この実施例では図面の都合で3極に構成した界磁マグネット9を 接着剤などの適宜な手段を用いて固設している。On the inner surface 17 of the lower portion of the magnet yoke 11, magnetic poles of N and S poles are arranged so that adjacent magnetic poles have different polarities along the moving direction of the slider 2 (P is 2). In the present embodiment, the field magnet 9 having three poles is fixedly provided by using an appropriate means such as an adhesive for the convenience of the drawing.

【0018】 スライドユニット24の上部内面26面の上記リニア磁気エンコ−ダ用スケ− ル12と対向する部分には,当該リニア磁気エンコ−ダ用スケ−ル12の微細な ピッチで交互に形成したN極,S極の磁極を検出するための磁気センサ18を平 行磁気空隙を介して取り付け,上記リニア磁気エンコ−ダ用スケ−ル12のN極 ,S極の磁極微細多極着磁極を検出できるようにしている。これにより磁気セン サ18がリニア磁気エンコ−ダ用スケ−ル12のN極,S極の磁極微細多極着磁 極数をカウントすることでスライダ2の移動量,移動速度,移動位置などが判明 し,これによってスライダ2の速度,位置のサ−ボが行える。In the portion of the inner surface 26 of the upper part of the slide unit 24 facing the linear magnetic encoder scale 12, the linear magnetic encoder scale 12 is alternately formed at a fine pitch. A magnetic sensor 18 for detecting the magnetic poles of the N pole and the S pole is attached via a normal magnetic gap, and the magnetic poles of the N pole and the S pole of the linear magnetic encoder scale 12 described above are attached to the fine multi-pole magnetic poles. I am able to detect. As a result, the magnetic sensor 18 counts the number of N-pole and S-pole fine multi-pole magnetized poles of the scale 12 for the linear magnetic encoder, so that the moving amount, moving speed, moving position, etc. of the slider 2 can be determined. As a result, the speed and position of the slider 2 can be servo-served.

【0019】 以上のような構成からなるリニア直流ブラシレスモ−タ1−1では,ステ−タ ヨ−クを構成する直動案内レ−ル3の下面の両側に長手方向に沿って延びるスペ −サ27を設け,そのスペ−サ27の下面に固定ベ−ス28を配設することで, 直動案内レ−ル3と固定ベ−ス27間にリ−ド線収納部30を形成し,プリント 配線基板10を介して電機子コイル8の端子と電気的に接続したリ−ド線29を 直動案内レ−ル3に形成したリ−ド線通し孔31に通した後,リニア直流ブラシ レスモ−タ1−1の端部の外部に導いている。In the linear DC brushless motor 1-1 having the above-described structure, the space extending in the longitudinal direction on both sides of the lower surface of the linear motion guide rail 3 which constitutes the stator yoke. A lead wire accommodating portion 30 is formed between the linear guide rail 3 and the fixed base 27 by providing the fixed base 28 on the lower surface of the spacer 27. After passing the lead wire 29 electrically connected to the terminal of the armature coil 8 through the printed wiring board 10 through the lead wire through hole 31 formed in the linear motion guide rail 3, linear DC It leads to the outside of the end of the brushless motor 1-1.

【0020】 ここにプリント基板10に取り付けた電機子コイル8群からなるステ−タ電機 子4は,界磁マグネット9と相対的な直線運動を行うため,プリント基板10に 透孔20を空け,螺子23を用いて直動案内レ−ル3に螺子止めすることで,堅 固に固定している。Since the stator armature 4 including the armature coil 8 group attached to the printed circuit board 10 makes a linear motion relative to the field magnet 9, a through hole 20 is formed in the printed circuit board 10. It is firmly fixed by screwing it to the linear guide rail 3 using the screw 23.

【0021】 しかるに,プリント配線基板10に取り付けた電機子コイル8群からなるステ −タ電機子4を螺子23によって直動案内レ−ル3に螺子止め固定すると,その 螺子23の頭部23aがプリント配線基板10の上部に突出するので,その頭部 23aの部分だけ界磁マグネット9と直動案内レ−ル3間のエアギャップを増長 し,大きな推力が得られない欠点がある。However, when the stator armature 4 including the armature coil 8 group attached to the printed wiring board 10 is screwed and fixed to the linear guide rail 3 by the screw 23, the head 23 a of the screw 23 is Since it protrudes above the printed wiring board 10, the air gap between the field magnet 9 and the linear motion guide rail 3 is increased only by the head portion 23a, and a large thrust cannot be obtained.

【0022】 尚,この場合,滑らかな推力を得るために,即ちコギングトルクが発生しない ようにするために,螺子23としては,非磁性体からなるものを用いている。In this case, in order to obtain a smooth thrust, that is, in order not to generate a cogging torque, the screw 23 is made of a non-magnetic material.

【0023】 上記リニア直流ブラシレスモ−タ1−1の欠点を改良するために,先に本件出 願人が提示した実開昭60−111384号公報に示すように,図6及び図7で 示す可動マグネット形リニア直流ブラシレスモ−タ1−2では,プリント配線基 板10に形成した透孔20の下面外周部と係合する鍔32aを有し,内周部に螺 子23の頭部23aの下部と当接する鍔32bを有する筒状の非磁性体カラ−3 2を,その鍔32aを上記プリント配線基板10’の透孔20の下面外周部と係 合させてプリント配線基板10’の透孔20部に設置し,しかる後,非磁性体カ ラ−の透孔部32cに螺子23を挿入して該螺子23の頭部23aの下部を上記 鍔32bに係合するまで直動案内レ−ル3に設けた螺子孔33に螺着することで ,プリント配線基板10’に取り付けた電機子コイル8群からなるステ−タ電機 子4’’を直動案内レ−ル3面に螺子止め固定する。In order to improve the drawbacks of the linear DC brushless motor 1-1, as shown in Japanese Utility Model Application Laid-Open No. 60-111384, which the applicant of the present application has previously presented, FIG. 6 and FIG. The movable magnet type linear DC brushless motor 1-2 has a collar 32a that engages with the outer periphery of the lower surface of the through hole 20 formed in the printed wiring board 10, and has a head 23a of the screw 23 on the inner periphery. Of the cylindrical non-magnetic body 32 having a collar 32b that abuts the lower portion of the printed wiring board 10 'by engaging the collar 32a with the outer peripheral portion of the lower surface of the through hole 20 of the printed wiring board 10'. The screw 23 is installed in the through hole 20 and then the screw 23 is inserted into the through hole 32c of the non-magnetic body color, and the lower portion of the head 23a of the screw 23 is linearly guided until it engages with the flange 32b. By screwing into the screw hole 33 provided in the rail 3, A stator armature 4 ″ composed of a group of armature coils 8 mounted on the printed wiring board 10 ′ is screwed and fixed to the surface of the linear guide rail 3.

【0024】 このことにより,この図6及び図7に示すリニア直流ブラシレスモ−タ1−2 では,プリント配線基板10’の上面へ螺子23の頭部23aの突出をなくすこ とができるので,図3乃至図5で示したリニア直流ブラシレスモ−タ1−1の欠 点を解消できる。As a result, in the linear DC brushless motor 1-2 shown in FIGS. 6 and 7, it is possible to eliminate the protrusion of the head 23a of the screw 23 on the upper surface of the printed wiring board 10 '. The defects of the linear DC brushless motor 1-1 shown in FIGS. 3 to 5 can be eliminated.

【0025】 かかるリニア直流ブラシレスモ−タ1−2の場合は,プリント配線基板10’ に取り付けた電機子コイル8群からなるステ−タ電機子4’を直動案内レ−ル3 面に堅固に螺子止め固定できる利点がある。In the case of such a linear DC brushless motor 1-2, a stator armature 4'consisting of armature coils 8 mounted on the printed wiring board 10 'is firmly attached to the surface of the linear motion guide rail 3. Has the advantage that it can be fixed with screws.

【0026】 しかしながら,内外周に鍔32a,32bを有し且つ大きな径の高価な非磁性 体カラ−32を非磁性体カラ−32を用いなければならず,安価に量産できない 欠点がある。However, the expensive non-magnetic material color 32 having the inner and outer circumferences of the collars 32a and 32b and having a large diameter must be used as the non-magnetic material color 32, which is a drawback that mass production is not possible at low cost.

【0027】 本件出願と同時出願のリニア直流ブラシレスモ−タ1−3は,上記リニア直流 ブラシレスモ−タ1−1,1−2の欠点を解消するためになされたもので,この リニア直流ブラシレスモ−タ1−3について図8及び図9を参照して以下に説明 する。The linear DC brushless motor 1-3 of the present application and the simultaneous application was made in order to eliminate the drawbacks of the linear DC brushless motors 1-1 and 1-2. The motor 1-3 will be described below with reference to FIGS. 8 and 9.

【0028】 このリニア直流ブラシレスモ−タ1−3は,上記透孔20を有するプリント配 線基板10に代えて,皿螺子23’の頭部23’aの下面と略一致する逆末広が りの傾斜面10’’aを持つ透孔20’を形成したプリント配線基板10’’を 用い,上記螺子23に代えて,逆末広がりの傾斜面10’’aと係合する下面傾 斜部23’bを有する頭部23’aを持つ皿螺子23’を用いている点において 異なる。This linear DC brushless motor 1-3 has a reverse end spread which is substantially the same as the lower surface of the head portion 23'a of the countersunk screw 23 ', instead of the printed wiring board 10 having the through hole 20. Of the printed wiring board 10 ″ having the through hole 20 ′ having the inclined surface 10 ″ a of FIG. The difference is that a countersunk screw 23 'having a head 23'a having'b' is used.

【0029】 したがって,このリニア直流ブラシレスモ−タ1−3では,皿螺子23’の頭 部23’aの下面傾斜面23’bを上記プリント配線基板10’’の透孔20’ の逆末広がりの傾斜面10’’aと係合させてプリント配線基板10’’の透孔 20’に皿螺子23’を挿入して該皿螺子23’の螺子部23’cを直動案内レ −ル3に設けた螺子孔33に螺着するすることで,プリント配線基板10’’に 取り付けた電機子コイル8群からなるコアレスステ−タ電機子4’’を直動案内 レ−ル3面に螺子止め固定する。Therefore, in this linear DC brushless motor 1-3, the lower inclined surface 23'b of the head portion 23'a of the countersunk screw 23 'expands in the reverse direction of the through hole 20' of the printed wiring board 10 ". Of the flat plate 23 ′ is inserted into the through hole 20 ′ of the printed wiring board 10 ″ by engaging the inclined surface 10 ″ a of the flat plate 10 ″, and the screw portion 23 ′ c of the flat plate screw 23 ′ is linearly guided. The coreless stator armature 4 '' consisting of the armature coil 8 group mounted on the printed wiring board 10 '' is screwed onto the linear motion guide rail 3 by being screwed into the screw hole 33 provided on the printed wiring board 10 ''. Stop and fix.

【0030】 上記可動マグネット形リニア直流ブラシレスモ−タ1−3によれば,ステ−タ 電機子4’’を構成する電機子コイル8が小さな場合,従来のように高価な非磁 性体カラ−32を用いなくても,電機子コイル8の枠内空洞部が小さい場合,プ リント配線基板10’’は電機子コイル8によってその形状を保持できるので, 界磁マグネット9とプリント配線基板10’’間のエアギャップを均一にでき, また非磁性体カラ−23を用いなくても,プリント配線基板10’’の逆末広が りの傾斜面10’’aと皿螺子23’の頭部23’aの下面傾斜面23’bとを 係合させてプリント配線基板10’’に取り付けた電機子コイル8を直動案内レ −ル3面に堅固に固定できて尚且つプリント配線基板10’’の上に皿螺子23 ’の頭部23’aを突出させることが無いため,皿螺子23’の頭部23’aに よるエアギャプの増加がないため,効率の良いリニア直流ブラシレスモ−タ1− 3を容易且つ安価に形成できる。According to the above-mentioned movable magnet type linear DC brushless motor 1-3, when the armature coil 8 which constitutes the stator armature 4 ″ is small, the expensive non-magnetic body color as in the conventional case is used. Even if the -32 is not used, the shape of the printed wiring board 10 '' can be maintained by the armature coil 8 when the cavity in the frame of the armature coil 8 is small, so that the field magnet 9 and the printed wiring board 10 can be maintained. '', The air gap between them can be made uniform, and even if the non-magnetic material color 23 is not used, the sloped surface 10''a of the reverse divergence of the printed wiring board 10 '' and the head of the countersunk screw 23 '. The armature coil 8 mounted on the printed wiring board 10 ″ by engaging with the lower inclined surface 23 ′ of 23 ′ a can be firmly fixed to the surface of the linear motion guide rail 3 and yet the printed wiring board 10 ′. '' On the plate screw 23 ' Since the head 23'a of the head does not protrude, and the air gap due to the head 23'a of the flat head screw 23 'does not increase, an efficient linear DC brushless motor 1-3 can be easily and inexpensively provided. Can be formed.

【0031】[0031]

【従来技術の問題点】[Problems of conventional technology]

上記したリニア直流ブラシレスモ−タ1−3は,上記のように非磁性体カラ− 32を用いなくて済むため,安価に形成できる利点があるが,電機子コイル8が 小さな比較的小形の出力の小さな場合に有利で,大きな推力を得る目的で電機子 コイル8の推力の発生に寄与する有効導体部8aの長さが長いものを用いた場合 とか,界磁マグネット9の一磁極の幅が広く,電機子コイル8の推力の発生に寄 与しない導体部8bと8bの間隔が広い電機子コイル8を用いた場合には,この 電機子コイル8群の上にプリント配線基板10’’を配設した場合,電機子コイ ル8はその枠内空洞部が大きなものとなっているために,当該プリント配線基板 10’’がたわみ,当該プリント配線基板10’’全体が波打ち,当該プリント 配線基板10’’と界磁マグネット9間のエアギャップの均一化を図ることがで きず,当該可動マグネット形リニア直流モ−タ,たとえば可動マグネット形リニ ア直流ブラシレスモ−タ1−3を得ることができない。 The above-mentioned linear DC brushless motor 1-3 has an advantage that it can be formed at low cost because it does not need to use the non-magnetic body color 32 as described above, but it has a small armature coil 8 and a relatively small output. Is advantageous in the case of using a long effective conductor 8a that contributes to the generation of the thrust of the armature coil 8 in order to obtain a large thrust, or the width of one magnetic pole of the field magnet 9 is When using the armature coil 8 that is wide and has a large gap between the conductor portions 8b and 8b that do not contribute to the generation of thrust of the armature coil 8, the printed wiring board 10 '' is placed on the armature coil 8 group. When installed, the armature coil 8 has a large cavity inside the frame, so that the printed wiring board 10 ″ bends, and the entire printed wiring board 10 ″ corrugates and the printed wiring board 10 ″. Board 10 ' Scratches that a uniformed air gap between the field magnet 9, the movable magnet type linear direct current motor - motor, for example, a movable magnet type linear A DC brushless motor - can not be obtained data 1-3.

【0032】[0032]

【本考案の課題】[Problems of the present invention]

本考案は,本件出願と同日出願の上記可動マグネット形リニア直流ブラシレス モ−タ1−3に僅かに安価な筒状の非磁性体カラ−を単に付加して組み立てるの みで,大きな推力を得る目的で電機子コイルの推力の発生に寄与する有効導体部 の長さが長いものを用いた場合とか,界磁マグネットの一磁極の幅が広く,電機 子コイルの推力の発生に寄与しない導体部同士の間隔が広い電機子コイルを用い た場合の上記可動マグネット形リニア直流ブラシレスモ−タ1−3であっても, プリント配線基板等の非磁性体基板に取り付けた電機子コイルをステ−タヨ−ク 等の固定側面に螺子を用いて取り付け固定する場合に,上記螺子を用いた場合で もその螺子の頭部が基板の上に突出してエアギャップを増長して推力の低下をき たすことを防ぎ,推力効率を高くすること,及び上記非磁性体基板とステ−タヨ −ク等の固定側間に安価な筒状非磁性体カラ−介在して補強するのみで電機子コ イル群の上面の非磁性体基板のたわみを防止して,当該非磁性体基板全体の波打 ちを防止し,当該非磁性体基板と界磁マグネット間のエアギャップの均一化を図 ることができるようにしたリニア直流モ−タ,例えば可動マグネット形リニア直 流ブラシレスモ−タを得ることを課題になされたものである。 The present invention obtains a large thrust by simply adding a slightly inexpensive tubular non-magnetic body color to the movable magnet type linear DC brushless motor 1-3 of the same application as the present application and assembling it. The purpose is to use a long effective conductor that contributes to the generation of armature coil thrust, or to use a conductor that does not contribute to the generation of armature coil thrust because the width of one pole of the field magnet is wide. Even in the case of the movable magnet type linear DC brushless motor 1-3 in the case of using the armature coil having a large space between them, the armature coil mounted on the non-magnetic substrate such as a printed wiring board is used as a starter -When using screws to attach and fix to the fixed side surface of the hook, etc., even if the above screws are used, the heads of the screws project above the substrate, increasing the air gap and reducing thrust. Prevent things Only by increasing the thrust efficiency and interposing an inexpensive tubular non-magnetic material collar between the non-magnetic material substrate and the fixed side of the stator yoke, etc. A linear structure that prevents the deflection of the magnetic substrate and prevents the waviness of the entire non-magnetic substrate and makes the air gap between the non-magnetic substrate and the field magnet uniform. The challenge was to obtain a DC motor, such as a movable magnet type linear direct current brushless motor.

【0033】[0033]

【本考案の課題達成手段】[Means for achieving the object of the present invention]

かかる本考案の課題は,可動子の走行方向に沿って隣配置の磁極が異極となる ようにN極,S極の磁極を配置した界磁マグネットを可動子または固定子に備え ,該界磁マグネットと相対的対向する固定子または可動子には,界磁マグネット 面に非磁性体基板を備えた多相コアレス電機子を電機子配設部材に配置したリニ ア直流モ−タにおいて,上記電機子配設部材に上記界磁マグネットと反対側の方 向に延びる螺子穴を形成し,該螺子穴と対向する上記非磁性体基板には皿螺子の 頭部の傾斜部と略一致する逆末広がりの傾斜面を持つ透孔を形成し,該透孔の傾 斜面部近傍の上記非磁性体基板と上記電機子配設部材間に上記非磁性体基板のた わみ防止用の筒状非磁性体カラ−を介在し,上記透孔に皿螺子を通して該皿螺子 の頭部の傾斜部を上記透孔の傾斜面と一致させ且つ皿螺子の螺子部を上記電機子 配設部材に形成した螺子穴に螺合して上記非磁性体基板を界磁マグネット対向面 に備えたコアレス電機子を上記電機子配設部材の上記界磁マグネットと対向する 電機子配設部材面に固定したことを特徴とするリニア直流モ−タを提供すること によって達成できる。 The problem to be solved by the present invention is to provide a field magnet, in which the magnetic poles of N pole and S pole are arranged so that adjacent magnetic poles are different poles along the traveling direction of the mover, in the mover or the stator. In a linear DC motor in which a stator or a mover relatively facing the magnetic magnet has a multi-phase coreless armature having a non-magnetic substrate on the surface of the field magnet in the armature disposing member, A screw hole extending in the direction opposite to the field magnet is formed in the armature disposing member, and the non-magnetic substrate facing the screw hole has a reverse hole that substantially coincides with the inclined portion of the head of the flat head screw. A through hole having an inclined surface that spreads toward the end is formed, and a cylindrical non-magnetic member for preventing bending of the non-magnetic material substrate is provided between the non-magnetic material substrate and the armature disposing member in the vicinity of the inclined surface of the through hole. A flat head screw of the flat head screw is inserted through the through hole through a magnetic body color. A coreless armature provided with the non-magnetic substrate on the surface facing the field magnet by matching the inclined surface of the through hole and screwing the screw part of the countersunk screw into the screw hole formed in the armature disposing member. This can be achieved by providing a linear DC motor characterized in that it is fixed to the armature disposing member surface facing the field magnet of the armature disposing member.

【0034】 その他の本考案の課題は,上記多相コアレス電機子を,空心形の電機子コイル 群で形成し,上記非磁性体基板に形成した上記皿螺子の頭部の傾斜部と略一致す る逆末広がりの傾斜面を持つ透孔は,上記電機子コイルの枠内空洞部と対向する 上記非磁性体基板位置に形成することで達成できる。Another subject of the present invention is that the polyphase coreless armature is formed of an air-core type armature coil group, and is substantially coincident with the inclined portion of the head of the flat head screw formed on the non-magnetic substrate. Such a through hole having an inclined surface that spreads in the opposite direction can be achieved by forming it at the position of the non-magnetic substrate facing the cavity in the frame of the armature coil.

【0035】[0035]

【本考案の実施例】[Examples of the present invention]

図1は,本考案の可動マグネット形リニア直流ブラシレスモ−タ1−4を可動 子の走行方向から見た縦断面図で,図2は同可動マグネット形リニア直流ブラシ レスモ−タ1−4の部分断面図ある。上記した従来例と共通する箇所の説明は, 上記の説明を参照してその説明を省略し,異なる箇所においてのみ,以下に本考 案の説明を行う。 FIG. 1 is a vertical sectional view of a movable magnet type linear DC brushless motor 1-4 of the present invention seen from the traveling direction of a mover, and FIG. 2 is a diagram of the movable magnet type linear DC brushless motor 1-4. FIG. The description of the parts common to the above-mentioned conventional example will be omitted by referring to the above description, and only the different parts will be described below.

【0036】 本考案のリニア直流ブラシレスモ−タ1−4では,上記リニア直流ブラシレス モ−タ1−3において,皿螺子23’の頭部23’aの下面傾斜面23’bを上 記プリント配線基板10’’’の透孔20’の逆末広がりの傾斜面10’’’a と係合させてプリント配線基板10’’’の透孔20’に皿螺子23’を挿入し て該皿螺子23’を直動案内レ−ル3に設けた螺子孔33に螺着するに際して, 予め上記透孔20’の傾斜面10’’’a部近傍,この実施例では,上記プリン ト配線基板10’’’の傾斜面10’’’aの下部と直動案内レ−ル3間に上記 プリント配線基板10’’’のたわみ防止用の内外周に鍔のない筒状非磁性体カ ラ−32’を立てて介在し,上記透孔20’に皿螺子23’を通して該皿螺子2 3’の頭部23’aの下面を上記透孔20’の傾斜面10’’’aと一致させ且 つ皿螺子23’の下部の螺子部23’cを上記直動案内レ−ル3のに形成した螺 子穴33に螺合して上記プリント配線基板10’’’を上面に取り付けたステ− タ電機子4’’’を上記直動案内レ−ル3の上面に螺子止め固定する。In the linear DC brushless motor 1-4 of the present invention, in the linear DC brushless motor 1-3 described above, the lower surface 23'b of the head 23'a of the flat head screw 23 'is printed. The plate screw 23 'is inserted into the through hole 20' of the printed wiring board 10 '' 'by engaging the inclined surface 10' '' a of the through hole 20 'of the wiring board 10' '' which is widened in the reverse direction to insert the plate screw 23 '. When the screw 23 'is screwed into the screw hole 33 provided in the linear motion guide rail 3, a portion near the inclined surface 10' '' a of the through hole 20 'is previously prepared. In this embodiment, the printed wiring board is used. A cylindrical non-magnetic material collar having no flange on the inner and outer circumferences for preventing the deflection of the printed wiring board 10 '' 'between the lower portion of the inclined surface 10' '' a of 10 '' 'and the linear guide rail 3. -32 'is erected and inserted, and the countersunk screw 23' is passed through the through hole 20 'and the countersunk screw 23 The lower surface of the head portion 23'a of the 'is aligned with the inclined surface 10' '' a of the through hole 20 ', and the lower screw portion 23'c of the countersunk screw 23' is attached to the linear motion guide rail 3. A stator armature 4 "" having the printed wiring board 10 "" mounted on the upper surface by screwing into the screw hole 33 formed on the upper surface of the linear motion guide rail 3 is screwed and fixed. .

【0037】[0037]

【考案の効果】[Effect of device]

本考案のリニア直流モ−タによれば,電機子を構成する電機子コイルが大きな 場合,従来のように径が大きく高価な非磁性体カラ−を用いなくても,非磁性体 基板の逆末広がりの傾斜面と皿螺子の頭部の下面傾斜面とを係合させて非磁性体 基板に取り付けた電機子コイルをその配設面に堅固に固定できて尚且つ安価な筒 状の非磁性体カラ−で上記非磁性体基板の傾斜部を補強しているので,上記螺子 の頭部によるエアギャプを増加しないで界磁マグネットとプリント配線基板のギ ャップを均一にでき,しかも非磁性体カラ−によって大きな空心型の電機子コイ ルの場合であっても,電機子コイル群の上面に配設した非磁性体基板がたわむこ となく,当該非磁性体基板全体の波打ちを防止でき,当該非磁性体基板と界磁マ グネット間のエアギャップの均一化を図ることができ効率及び信頼性の高いリニ ア直流モ−タ,例えば可動マグネット形リニア直流ブラシレスモ−タを得ること を容易に形成できる。 According to the linear DC motor of the present invention, when the armature coil that constitutes the armature is large, it is possible to reverse the non-magnetic substrate without using the expensive non-magnetic color that is large in diameter as in the conventional case. Non-magnetic material that engages the sloping sloping surface and the lower sloping surface of the head of the flat head screw. The armature coil mounted on the substrate can be firmly fixed to the mounting surface, and it is an inexpensive cylindrical non-magnetic material. Since the inclined portion of the non-magnetic substrate is reinforced by the body color, the gap between the field magnet and the printed wiring board can be made uniform without increasing the air gap caused by the head of the screw, and the non-magnetic substrate can be colored. Even if a large air-core type armature coil is used, the non-magnetic substrate placed on the upper surface of the armature coil group will not bend, and the entire non-magnetic substrate can be prevented from waving. Between the non-magnetic substrate and the field magnet Efficiency and reliable linear A DC can be made uniform gap motor - motor, for example, a movable magnet type linear brushless DC motor - can be easily formed to obtain the data.

【0038】 尚,本考案は,可動マグネット形であろうと可動電機子形であろうと,またブ ラシと整流子を用いて整流する形式の整流子形であろうと,ブラシレス形のリニ ア直流モ−タであろうと何れを問わず適用があることは言うまでもない。It should be noted that the present invention, regardless of whether it is a movable magnet type, a movable armature type, or a commutator type of rectifying using a brush and a commutator, is a brushless linear DC motor. It goes without saying that it applies to any case.

【図面の簡単な説明】[Brief description of drawings]

【図1】 本考案の一実施例を示す多極多相型の可動マ
グネット形リニア直流ブラシレスモ−タを可動子の走行
方向から見た縦断面図である。
FIG. 1 is a vertical cross-sectional view of a multi-pole / multi-phase type movable magnet type linear DC brushless motor showing an embodiment of the present invention as seen from the traveling direction of a mover.

【図2】 同可動マグネット形リニア直流ブラシレスモ
−タの部分断面図である。
FIG. 2 is a partial cross-sectional view of the movable magnet type linear DC brushless motor.

【図3】 多極多相型の可動マグネット形リニア直流ブ
ラシレスモ−タの一部切り欠き省略した上面斜視図であ
る。
FIG. 3 is a top perspective view of a multi-pole / multi-phase movable magnet type linear DC brushless motor with some cutouts omitted.

【図4】 従来の多極多相型の可動マグネット形リニア
直流ブラシレスモ−タを可動子の走行方向から見た縦断
面図である。
FIG. 4 is a vertical cross-sectional view of a conventional multi-pole / multi-phase movable magnet type linear DC brushless motor as seen from the traveling direction of the mover.

【図5】 同可動マグネット形リニア直流ブラシレスモ
−タの部分断面図である。
FIG. 5 is a partial cross-sectional view of the movable magnet type linear DC brushless motor.

【図6】 従来の他の多極多相型の可動マグネット形リ
ニア直流ブラシレスモ−タを可動子の走行方向から見た
縦断面図である。
FIG. 6 is a vertical cross-sectional view of another conventional multi-pole / multi-phase movable magnet type linear DC brushless motor as seen from the traveling direction of the mover.

【図7】 同可動マグネット形リニア直流ブラシレスモ
−タの部分断面図である。
FIG. 7 is a partial cross-sectional view of the movable magnet type linear DC brushless motor.

【図8】 本件出願と同日付け出願に係わる本件出願人
の他の多極多相型の可動マグネット形リニア直流ブラシ
レスモ−タを可動子の走行方向から見た縦断面図であ
る。
FIG. 8 is a longitudinal cross-sectional view of another multi-pole / multi-phase type movable magnet type linear DC brushless motor of the applicant of the present application, which is related to the application filed on the same date as the moving direction of the mover.

【図9】 同可動マグネット形リニア直流ブラシレスモ
−タの部分断面図である。
FIG. 9 is a partial cross-sectional view of the movable magnet type linear DC brushless motor.

【符号の説明】[Explanation of symbols]

1−1 可動マグネット形リニア直流ブラシレスモ−タ 1−2 可動マグネット形リニア直流ブラシレスモ−タ 1−3 可動マグネット形リニア直流ブラシレスモ−タ 1−4 可動マグネット形リニア直流ブラシレスモ−タ 2 スライダ 3 直動案内レ−ル 4,4’,4’’,4’’’ コアレスステ−タ電機子 5 電機子収納用凹部 6 レ−ル側面 7 軌道溝 8 電機子コイル 8a 推力の発生に寄与する導体部 8b 推力の発生に寄与しない導体部 9 界磁マグネット 10,10’,10’’,10’’’ プリント配線基
板 10’’a 傾斜面 11 マグネットヨ−ク 12 リニア磁気エンコ−ダ用スケ−ル 13 リニア磁気エンコ−ダ用スケ−ル溝 15 軌道溝 16 転動体 17 下部内面 18 磁気センサ 19 螺子 20 透孔 20’ 透孔 21 磁極判別素子 22 絶縁シ−ト 23 螺子 23’ 皿螺子 23a 頭部 23’a 頭部 23’b 下面傾斜部 24 スライドユニット 25 リタ−ン路 26 下部内面 27 スペ−サ 28 固定ベ−ス 29 リ−ド線 30 リ−ド線収納溝 31 リ−ド線通し孔 32 非磁性体カラ− 32a,32b 鍔 32c 透孔部 32’ 非磁性体カラ− 33 螺子孔
1-1 Movable Magnet Type Linear DC Brushless Motor 1-2 Movable Magnet Type Linear DC Brushless Motor 1-3 Movable Magnet Type Linear DC Brushless Motor 1-4 Movable Magnet Type Linear DC Brushless Motor 2 Slider 3 Linear motion guide rails 4, 4 ', 4 ", 4'" Coreless stator armature 5 Armature housing recess 6 Rail side surface 7 Track groove 8 Armature coil 8a Contributes to thrust generation Conductor part 8b Conductor part that does not contribute to generation of thrust 9 Field magnet 10, 10 ', 10'',10''' Printed wiring board 10''a Inclined surface 11 Magnet yoke 12 Linear magnetic encoder scale -Rail 13 Scale groove for linear magnetic encoder 15 Track groove 16 Rolling element 17 Lower inner surface 18 Magnetic sensor 19 Screw 20 Through hole 20 'Through hole 21 Magnetic pole discriminating element 22 Insulation shield -To 23 screw 23 'countersunk screw 23a head 23'a head 23'b lower surface inclined part 24 slide unit 25 return path 26 lower inner surface 27 spacer 28 fixed base 29 lead wire 30 lead Lead wire receiving groove 31 Lead wire through hole 32 Non-magnetic body color 32a, 32b Collar 32c Through hole portion 32 'Non-magnetic body color 33 Screw hole

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 可動子の走行方向に沿って隣配置の磁極
が異極となるようにN極,S極の磁極を配置した界磁マ
グネットを可動子または固定子に備え,該界磁マグネッ
トと相対的対向する固定子または可動子には,界磁マグ
ネット面に非磁性体基板を備えた多相コアレス電機子を
電機子配設部材に配置したリニア直流モ−タにおいて,
上記電機子配設部材に上記界磁マグネットと反対側の方
向に延びる螺子穴を形成し,該螺子穴と対向する上記非
磁性体基板には皿螺子の頭部の傾斜部と略一致する逆末
広がりの傾斜面を持つ透孔を形成し,該透孔の傾斜面部
近傍の上記非磁性体基板と上記電機子配設部材間に上記
非磁性体基板のたわみ防止用の筒状非磁性体カラ−を介
在し,上記透孔に皿螺子を通して該皿螺子の頭部の傾斜
部を上記透孔の傾斜面と一致させ且つ皿螺子の螺子部を
上記電機子配設部材に形成した螺子穴に螺合して上記非
磁性体基板を界磁マグネット対向面に備えたコアレス電
機子を上記電機子配設部材の上記界磁マグネットと対向
する電機子配設部材面に固定したことを特徴とするリニ
ア直流モ−タ。
1. A field magnet, in which magnetic poles of N pole and S pole are arranged so that adjacent magnetic poles are different poles along the traveling direction of the mover, is provided in the mover or the stator, and the field magnet is provided. In a linear DC motor in which a stator or a mover that is relatively opposed to a multi-phase coreless armature having a non-magnetic substrate on a field magnet surface is arranged in an armature disposing member,
A screw hole extending in a direction opposite to the field magnet is formed in the armature disposing member, and the non-magnetic substrate facing the screw hole has a reverse hole substantially matching the inclined portion of the head of the flat head screw. A through hole having an inclined surface diverging toward the end is formed, and a cylindrical non-magnetic body color is formed between the non-magnetic substrate and the armature disposing member in the vicinity of the inclined surface of the through hole to prevent the non-magnetic substrate from bending. -Through the flat screw through the through hole so that the inclined portion of the head of the flat screw coincides with the inclined surface of the through hole, and the screw portion of the flat screw is inserted into the screw hole formed in the armature disposing member. A coreless armature provided with the non-magnetic substrate on a field magnet facing surface by screwing is fixed to an armature mounting member surface of the armature mounting member facing the field magnet. Linear DC motor.
【請求項2】 上記多相コアレス電機子は,空心形の電
機子コイル群からなり,上記非磁性体基板に形成した上
記皿螺子の頭部の傾斜部と略一致する逆末広がりの傾斜
面を持つ透孔は,上記電機子コイルの枠内空洞部と対向
する上記非磁性体基板位置に形成していることを特徴と
する請求項1に記載のリニア直流モ−タ。
2. The multi-phase coreless armature is composed of an air-core type armature coil group, and has an inclined surface having a reverse end spread which substantially coincides with the inclined portion of the head of the flat head screw formed on the non-magnetic substrate. 2. The linear DC motor according to claim 1, wherein the through hole is formed at a position of the non-magnetic substrate facing the hollow portion in the frame of the armature coil.
JP7421093U 1993-12-24 1993-12-24 Linear DC motor Pending JPH0739292U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7421093U JPH0739292U (en) 1993-12-24 1993-12-24 Linear DC motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7421093U JPH0739292U (en) 1993-12-24 1993-12-24 Linear DC motor

Publications (1)

Publication Number Publication Date
JPH0739292U true JPH0739292U (en) 1995-07-14

Family

ID=13540609

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7421093U Pending JPH0739292U (en) 1993-12-24 1993-12-24 Linear DC motor

Country Status (1)

Country Link
JP (1) JPH0739292U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010154683A (en) * 2008-12-25 2010-07-08 Thk Co Ltd Linear motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010154683A (en) * 2008-12-25 2010-07-08 Thk Co Ltd Linear motor

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