JP2002119915A - Disklike eccentric rotor and flat vibration motor having the same - Google Patents
Disklike eccentric rotor and flat vibration motor having the sameInfo
- Publication number
- JP2002119915A JP2002119915A JP2001234608A JP2001234608A JP2002119915A JP 2002119915 A JP2002119915 A JP 2002119915A JP 2001234608 A JP2001234608 A JP 2001234608A JP 2001234608 A JP2001234608 A JP 2001234608A JP 2002119915 A JP2002119915 A JP 2002119915A
- Authority
- JP
- Japan
- Prior art keywords
- core coil
- air
- coil
- wound
- printed wiring
- 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.)
- Granted
Links
Landscapes
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Current Collectors (AREA)
- Dc Machiner (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Windings For Motors And Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、移動体通信装置のサ
イレントコール手段として用いられる扁平型振動モータ
とその主要部材である偏心ロータの改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat type vibration motor used as a silent call means of a mobile communication device and an improvement of an eccentric rotor which is a main member thereof.
【０００２】[0002]
【従来の技術】従来より、ページャや携帯電話機等のサ
イレントコール手段として図９に示すように円筒直流モ
ータＭの出力軸Ｓにタングステン合金製の偏心ウエイト
Ｗを配し、回転時にこの偏心ウエイトＷの遠心力の差を
利用して振動を発生させるようにしたものが知られてい
る。2. Description of the Related Art Conventionally, as shown in FIG. 9, an eccentric weight W made of a tungsten alloy is arranged on an output shaft S of a cylindrical DC motor M as a silent call means for a pager, a portable telephone or the like. There is known an apparatus which generates vibration by utilizing a difference in centrifugal force of the vibration.
【０００３】ところが、上記従来の出力軸Ｓに偏心ウエ
イトＷを付加するものでは、ページャなどの機器側にお
いて、この偏心ウエイトＷの旋回空間を配慮しなくては
ならないなど、設計的な制約があり、高価なタングステ
ン合金を使用するためコスト的にも問題があった。However, in the case where the eccentric weight W is added to the conventional output shaft S, there is a design limitation such that the turning space of the eccentric weight W must be taken into consideration on a device such as a pager. However, there is a problem in cost because an expensive tungsten alloy is used.
【０００４】 最近では、こ
のような円筒型直流モータも細筒が求められ、直径が４
ｍｍ程度のものが使われ始めている。しかしながら、振
動量を得るため、モータ本体は４ｍｍでも出力軸に配し
た偏心ウエイトの旋回空間は６ｍｍ程度あり、また、円
筒型はそのままでは載置することができず、通常は取り
付け部材が必要となって、かなりの占有空間を設定せざ
る得ず、携帯機器の薄型化にネックとなっている。また
効率も２０〜３０％台のため、消費電流が大となってし
まう問題がある。このため、３ｍｍ以下の厚みが容易に
確保できる扁平型モータが再認識され始めている。本出
願人は先に出力軸をなくして、本来通常回転型等分配置
した３個の空心コイルの内１個を反対側に移相して偏ら
せて配置することにより、内蔵するロータ自体を偏心さ
せた扁平コアレス型振動モータを特許第２１３７７２４
号（米国特許５０３６２３９号）として提案している。[0004] Recently, a thin cylinder has been required for such a cylindrical DC motor, and the diameter is 4 mm.
mm is being used. However, in order to obtain the amount of vibration, even if the motor body is 4 mm, the turning space of the eccentric weight arranged on the output shaft is about 6 mm, and the cylindrical type cannot be mounted as it is, and usually requires a mounting member. As a result, a considerable occupied space has to be set, which is a bottleneck in making mobile devices thinner. Further, since the efficiency is in the order of 20 to 30%, there is a problem that the current consumption becomes large. Therefore, flat motors that can easily secure a thickness of 3 mm or less have begun to be recognized again. The present applicant has previously eliminated the output shaft and shifted the phase of one of the three air-core coils originally arranged in a normal rotary type equally to the opposite side so as to be biased, so that the built-in rotor itself was removed. Patent No. 2137724 discloses an eccentric flat coreless vibration motor
No. (US Pat. No. 5,036,239).
【０００５】同モータは、電機子コイルの有効導体長も
多く採れるので、比較的高効率となり、３Ｖ入力で１０
ｍＡ程度の消費電力が容易に得られる。また、出力軸、
偏心ウエイトがないので、設計的な制約を受けず、使い
勝手がよいし、旋回時の危険性がないなど、市場に好評
をもって迎えられているが、反面、片側に３個の空心コ
アレス巻線を有するので、コイルのサイズが小さなもの
にせざるを得ず、部品点数や加工工数が増加してしま
う。The motor has a relatively high efficiency because the effective conductor length of the armature coil can be increased.
Power consumption of about mA can be easily obtained. Also, the output shaft,
Because there is no eccentric weight, there is no design restriction, it is easy to use, and there is no danger at the time of turning. It has been well received in the market, but on the other hand, three air coreless windings on one side Therefore, the size of the coil must be reduced, and the number of parts and the number of processing steps increase.
【０００６】[0006]
【発明が解決しようとする課題】上記のような片側に３
個の電機子コイルを配置した内蔵型偏心ロータを備えた
ものは、小型化されるほど電機子巻線の間隔がなくな
り、その端末を電機子巻線を損傷しないようにして整流
子に結線するのが至難の技となる。また、各電機子コイ
ルはマグネットの磁極開角より小にせざるを得ず、さら
なる効率の向上が望まれている。また、巻線型空心コイ
ルが３個のため、部品点数も多くなる。SUMMARY OF THE INVENTION
The one with the built-in eccentric rotor in which the armature coils are arranged, the smaller the size, the shorter the interval between the armature windings, and the terminals are connected to the commutator without damaging the armature windings Is the most difficult technique. In addition, each armature coil must be smaller than the magnetic pole opening angle of the magnet, and further improvement in efficiency is desired. In addition, since the number of the wound air core coils is three, the number of parts is increased.
【０００７】この発明の第１の目的は、遠心力による振
動を適切に発生しながらも、高効率を得、組み付けも容
易にできる円盤形偏心ロータにするものである。この発
明の第２の目的は、コイル自体で重心を中心からずらし
て別に偏心部材を配置する必要のない円盤形偏心ロータ
にするものである。この発明の第３の目的は、このよう
な扁平な円盤形偏心ロータを用いることにより、高効率
な部品点数の少ない、コスト的有利な扁平型振動モータ
を提供することにある。A first object of the present invention is to provide a disk-type eccentric rotor which can obtain high efficiency and can be easily assembled while appropriately generating vibrations due to centrifugal force. A second object of the present invention is to provide a disk-shaped eccentric rotor in which it is not necessary to displace the center of gravity from the center of the coil itself and arrange an eccentric member separately. A third object of the present invention is to provide a flat vibration motor having a high efficiency, a small number of parts, and a cost advantage by using such a flat disk-shaped eccentric rotor.
【０００８】[0008]
【課題を解決するための手段】上記の基本的な課題解決
手段は、請求項１に示す発明のように少なくとも１個の
巻線型空心コイル配置面を有する印刷配線型平板整流子
部材であって、中心に軸挿通孔を設け、平面から見て外
形をほぼ円盤形で前記巻線型空心コイルの外周まで拡大
形成してなり、この印刷配線型平板整流子部材の前記軸
挿通孔の周囲に複数個の整流子セグメントランドを形成
し、前記巻線型空心コイル配置面とオーバーラップしな
い位置でコイル端末結線ランドを形成し、前記軸挿通孔
に軸ホルダを設け、この軸ホルダの外方に少なくとも１
個の巻線型空心コイルを載置してその端末を前記端末結
線ランドに結線したもので達成できる。具体的な手段は
請求項２、３に示す発明のように前記巻線型空心コイル
は２個で構成し、この巻線型空心コイルとオーバーラッ
プしない位置にタングステン合金を含む偏心ウエイトを
前記巻線型空心コイルの厚み内となるように載置し樹脂
で固着してなるものか、前記巻線型空心コイルは１個で
構成し、この巻線型空心コイルとオーバーラップしない
位置に少なくとも１個の印刷配線空心コイルを形成し、
この印刷配線空心コイルの位置にタングステン合金を含
む偏心ウエイトを前記巻線型空心コイルの厚み内となる
ように載置し樹脂で固着してなる構成にしたものがよ
い。この偏心ロータを扁平コアレス振動モータにするに
は、請求項４に示す発明のように前記請求項１〜３のい
ずれか１項に記載の円盤形偏心ロータと、この偏心ロー
タを回転自在に支承するためにハウジングの一部固着し
た軸と、このロータに軸方向空隙を介して磁界を与える
マグネットと、このマグネットの内側に配され、前記印
刷配線型平板整流子部材を介して各空心コイルに電力を
与えるブラシと、これらを格納したハウジングからなる
もので達成できる。According to the first aspect of the present invention, there is provided a printed wiring type flat commutator member having at least one winding type air core coil arrangement surface according to the present invention. A shaft insertion hole is provided at the center, and the outer shape is substantially formed in a disk shape when viewed from a plane and is enlarged to the outer periphery of the coiled air core coil. A plurality of the printed wiring type plate commutator members are provided around the shaft insertion hole. Commutator segment lands are formed, coil terminal connection lands are formed at positions that do not overlap with the winding type air core coil placement surface, and a shaft holder is provided in the shaft insertion hole.
This can be achieved by mounting a plurality of wound air-core coils and connecting the terminals to the terminal connection lands. As a specific means, the winding type air core coil is composed of two coils, and the eccentric weight containing a tungsten alloy is provided at a position not overlapping with the winding type air core coil. Either the coil is placed so as to be within the thickness of the coil and fixed with resin, or the wound-type air-core coil is composed of one coil, and at least one printed-wire air-core is located at a position that does not overlap with the coil. Forming a coil,
It is preferable that an eccentric weight containing a tungsten alloy is placed at the position of the printed wiring air-core coil so as to be within the thickness of the wire wound air-core coil and fixed with resin. In order to make this eccentric rotor a flat coreless vibration motor, a disk-shaped eccentric rotor according to any one of claims 1 to 3 and a rotatably supporting this eccentric rotor as in the invention according to claim 4 are provided. A shaft that is partially fixed to the housing, a magnet that applies a magnetic field to the rotor through an axial gap, and a magnet that is disposed inside the magnet and is connected to each air-core coil through the printed wiring type flat commutator member. This can be achieved with a brush that provides power and a housing that contains them.
【０００９】上記請求項１に示す課題達成手段によれ
ば、円盤形であるので磁極の開角である基準電気開角ま
で有効導体部が来るように各空心コイルのサイズ設定が
できるので高効率となり、巻線型空心コイルと印刷配線
型空心コイルの重量差を利用して偏心させることができ
る。端末の結線も容易にでき、厚みを増やさずに薄い偏
心ロータとなる。また、請求項２、３に示す課題達成手
段によれば、巻線型空心コイルの厚みを巧みに利用して
厚みを増やさずにウエイトを載置しながらも薄いロータ
にできるようにし、円盤形ながらも、偏心ウエイトによ
り回転時に大きな遠心力による振動が容易に得られる。
請求項４に示す課題達成手段によれば、出力軸が要らな
い振動モータの特長を生かし、円盤形ながらも遠心力振
動が得られ、コイルの数が少ないためコスト的に有利な
振動モータにできる。According to the first aspect of the present invention, the size of each air-core coil can be set so that the effective conductor portion comes to the reference electric opening angle, which is the opening angle of the magnetic pole, because of the disk shape, so that high efficiency is achieved. Thus, eccentricity can be achieved by utilizing the weight difference between the wound air core coil and the printed wiring air core coil. Terminals can be easily connected, and a thin eccentric rotor can be obtained without increasing the thickness. According to the means for achieving the object set forth in claims 2 and 3, the thickness of the wound air-core coil is skillfully utilized so that a thin rotor can be formed while placing a weight without increasing the thickness. In addition, vibration due to a large centrifugal force during rotation can be easily obtained by the eccentric weight.
According to the fourth aspect of the present invention, a centrifugal force vibration can be obtained in spite of a disk shape by utilizing the features of a vibration motor that does not require an output shaft. .
【００１０】[0010]
【発明の実施の形態】以下、図面に示す各実施の形態に
基づき本発明の構成を説明する。図１は本発明の円盤形
偏心ロータを構成する印刷配線型平板整流子部材の第１
の実施の形態を示す一面側から見た平面図である。図２
は同平板整流子部材を他面側から見た偏心ロータの平面
図である。図３は図２のＡ−Ａ線切断断面図である。図
４は本発明の円盤形偏心ロータの第２の実施の形態を示
す平面図である。図５は同第３の実施の形態を示す要部
断面図である。図６は図５の変形例の平面図である。図
７は図２、図３の円盤形偏心ロータを用いた扁平型コア
レス振動モータの断面図である。図８は本発明の第３の
実施の形態の円盤形偏心ロータを用いた扁平型コアレス
振動モータの断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below based on embodiments shown in the drawings. FIG. 1 shows a first example of a printed wiring type flat commutator member constituting a disc-shaped eccentric rotor of the present invention.
FIG. 2 is a plan view showing one embodiment as viewed from one surface side. FIG.
FIG. 3 is a plan view of the eccentric rotor when the plate commutator member is viewed from the other side. FIG. 3 is a sectional view taken along line AA of FIG. FIG. 4 is a plan view showing a second embodiment of the disk-shaped eccentric rotor of the present invention. FIG. 5 is a cross-sectional view of a main part showing the third embodiment. FIG. 6 is a plan view of a modification of FIG. FIG. 7 is a cross-sectional view of a flat coreless vibration motor using the disk-shaped eccentric rotor of FIGS. FIG. 8 is a sectional view of a flat coreless vibration motor using a disk-shaped eccentric rotor according to a third embodiment of the present invention.
【００１１】図１において、１は、厚みが０．３ｍｍ程
度の銅箔を両面に形成した印刷配線板で外形を平面から
見てほぼ円盤形に後述の巻線型空心コイルが取付できる
範囲まで拡大形成して平板型整流子部材としたもので、
中心に軸挿入孔１ａを設け、この軸挿通孔１ａの周囲の
一面に対向するセグメントを他面も利用してスルーホー
ルＳ１，Ｓ２などでショートした６個の整流子セグメン
トランドａ、ｂ、ｃ、ｄ、ｅおよびｆを形成すると共に
その外方に１個の有効導体部分（放線方向）の中心部分
の開角がほぼ９０度（マグネットの磁極開角に等しい）
になるようにした印刷配線型空心コイル１ｂを形成し、
かつ他面の外周部に各空心コイルの巻き終わり端末一括
結線ランド１ｄと巻き始め端末結線ランド１ｅ、１ｆを
形成してある。ここで前記印刷配線型空心コイルの巻き
始め端末は、１面側で直接前記整流子セグメントランド
ｄに接続されるようになっている。この印刷配線型空心
コイル１ｂと１２０度離れた位置で引き回しランドリー
ド植設用として隔壁を残して２個の巻線型空心コイル配
置ガイド孔１ｇ、１ｇをそれぞれ配し、この巻線型空心
コイル配置ガイド孔１ｇの両側に３等分の位置に穿設し
た補強孔１ｊ‥‥と巻線型空心コイル配置ガイド孔１ｇ
とは互いに補強のために挿通部１ｈを介している。ここ
でスルーホールＳ１は少し大径にして補強孔としての機
能も果たしている。ここではさらに前記印刷配線型空心
コイル１ｂは巻き数を稼ぐためにスルーホールＳ３を介
して他面側に同様に形成したものと直列接続してある。
また、この印刷配線型空心コイル１ｂは本図では引き回
しリードを除いて便宜上コイル各線は一本の実線で表し
ており、巻線型に比べてコーナーを角にできるので有効
導体長（磁極の開角部分）を目いっぱい伸ばしてトルク
がでるようにしている。上記印刷配線型平板整流子部材
１の外周部には、切り欠きｇ、ｈ及びｊが形成された巻
線型空心コイル端末結線ランドが形成され、巻線型空心
コイル端末を半田付け、あるいは熱溶着時に仮固定でき
るように掛け止められるようになっている。なお、ここ
で上記６個のセグメントランドはそのまま整流子片を構
成できるように表面を金メッキして平板整流子にしてい
るが、銅箔のままにして別に整流子を端子で結線するも
のでも良い。In FIG. 1, reference numeral 1 denotes a printed wiring board formed on both sides with a copper foil having a thickness of about 0.3 mm, which is substantially disc-shaped when viewed from a plane and is enlarged to a range where a later-described coiled air-core coil can be mounted. Formed into a flat commutator member,
A shaft insertion hole 1a is provided at the center, and six commutator segment lands a, b, and c are short-circuited by through-holes S1, S2, etc., using a segment facing one surface around the shaft insertion hole 1a as the other surface. , D, e, and f, and an opening angle of a central portion of one effective conductor portion (radiation direction) on the outside thereof is approximately 90 degrees (equal to the magnetic pole opening angle of the magnet).
To form a printed wiring type air-core coil 1b
At the outer peripheral portion of the other surface, a terminal end connection land 1d and a winding start terminal connection land 1e, 1f of each air core coil are formed. Here, a terminal at the beginning of winding of the printed wiring type air core coil is directly connected to the commutator segment land d on one surface side. Two winding-type air-core coil arrangement guide holes 1g, 1g are arranged except for the partition wall for placing land leads at a position 120 degrees apart from the printed wiring-type air-core coil 1b. Reinforcing holes 1j # drilled at three equal positions on both sides of hole 1g, and wound-type air-core coil arrangement guide holes 1g
Are interposed through the insertion portion 1h for reinforcement. Here, the through hole S1 has a slightly larger diameter and also functions as a reinforcing hole. Here, the printed wiring type air-core coil 1b is further connected in series with a coil formed on the other surface side through a through hole S3 in order to increase the number of turns.
In this printed wiring type air-core coil 1b, each line of the coil is represented by a single solid line for convenience except for the lead wires in the drawing, and since the corner can be made a corner as compared with the winding type, the effective conductor length (the opening angle of the magnetic pole) Part) is stretched as much as possible to produce torque. At the outer peripheral portion of the printed wiring type flat commutator member 1, a winding type air core coil terminal connection land having notches g, h and j is formed, and the winding type air core coil terminal is soldered or heat-sealed. It is designed to be hooked so that it can be temporarily fixed. Although the surface of the six segment lands is plated with gold to form a commutator piece as it is, a flat commutator may be used. Alternatively, a commutator may be separately connected to a terminal by leaving the copper foil. .
【００１２】次に上記のような平板型整流子部材１を用
いて円盤形偏心ロータＲにするには、図２、３に示すよ
うに他面において、密度４程度の高摺動性樹脂で軸ホル
ダ２と２個の内径側の巻線型空心コイル配置ガイド３お
よび外径側の巻線型空心コイル配置ガイドを兼ねる３個
の支壁４を、前記補強孔１ｊと巻線型空心コイル配置ガ
イド孔１ｇに各挿通部１ｈを介してアウトサート一体成
形により立ち上げ、２個の巻線型空心コイル配置ガイド
３に有効導体部分がほぼ９０度になるようにした巻線型
空心コイル５を装着し、その端末５ａを前記端末結線ラ
ンド１ｄ，１ｅ、１ｆに半田付けあるいは熱溶着により
結線すればよい。Next, in order to make the disk-shaped eccentric rotor R by using the above-mentioned plate-type commutator member 1, as shown in FIGS. The shaft holder 2 and the three supporting walls 4 serving also as two inner diameter side wound type air core coil arrangement guides and the outer diameter side wound type air core coil arrangement guides are provided with the reinforcing holes 1j and the wound type air core coil arrangement guide holes. 1g is started up by the outsert integral molding through each insertion portion 1h, and the winding type air-core coil 5 having an effective conductor portion substantially at 90 degrees is mounted on the two winding-type air-core coil arrangement guides 3, and The terminal 5a may be connected to the terminal connection lands 1d, 1e, 1f by soldering or heat welding.
【００１３】図４に示すものは、第２の実施の形態を示
すもので２個の印刷配線型コイル１ｂと１個の巻線型空
心コイル５が配置できるようにした平面を円盤形にした
印刷配線型平板整流子部材１１である。この場合、支壁
４は巻線型空心コイル５を位置決め固定するだけでよい
ので２個でよいし、外周部に配した端末結線ランドは２
個ですむ。図中同一部材は同一符号を付してその説明は
省略する。このようにすると巻線型空心コイルは１個で
よいのでコストパフォーマンス上から有利なものとな
る。FIG. 4 shows a second embodiment of the present invention, in which a printed surface is formed in a disk shape so that two printed wiring type coils 1b and one wound air core coil 5 can be arranged. This is a wiring type flat commutator member 11. In this case, the support wall 4 only needs to position and fix the wire-wound air-core coil 5, so that only two support walls 4 are required.
You only need one. In the drawings, the same members are denoted by the same reference numerals, and description thereof will be omitted. In this case, only one wound air core coil is required, which is advantageous in terms of cost performance.
【００１４】図５は本発明の印刷配線型平板整流子部材
を用いた偏心ロータの第３の実施の形態を示すもので、
すなわち、印刷配線型空心コイル１ｂと巻線型空心コイ
ル５の厚みの差に着眼して大振動量を得るために印刷配
線型空心コイル１ｃの位置に巻線型空心コイル５の厚み
内でタングステン合金からなる高比重の偏心ウエイト６
６を装着して偏心ロータＲ１にしたものである。したが
って、このように偏心ウエイト６６を装着しても印刷配
線空心コイルは厚みが無視できる程度のため、偏心ロー
タＲ１の厚みは犠牲にならない。この場合は、重心の位
置を上記の各実施の形態と逆にするために軸ホルダ２２
と２個の巻線型空心コイル配置ガイド３３および３個の
支壁４４等は軽量化した高摺動性樹脂（たとえば比重
１．３程度のチタン酸カリウムウイスカ入りポリアミド
系樹脂）にするのがよい。その他の構成は上記各の実施
の形態と同様なため同一符号を付してその説明を省略す
る。なお、ここでは、上記第３の実施の形態の変形例と
して、図６に示すように印刷配線型整流子部材１に１１
０度ないし１３５度（図６では１２０度）の配置開角で
２個の巻線型コイル５を載置し、軸を間にこの反対側に
タングステン合金からなる偏心ウエイト６６を巻線型空
心コイル５の厚み内で載置し、樹脂で一体に固着してい
るものでもよい。この場合は偏心ウエイト６６の位置に
は両面とも印刷配線型空心コイルは形成していない。こ
のようにすれば、銅線の比重８台に対してタングステン
合金の比重は１８以上得られるので、重心は偏心ウエイ
ト６６側に移動して大きな偏心が得られることになる。FIG. 5 shows a third embodiment of the eccentric rotor using the printed wiring type flat commutator member of the present invention.
That is, in order to obtain a large amount of vibration by focusing on the difference between the thickness of the printed wiring type air-core coil 1b and the thickness of the winding type air-core coil 5, a tungsten alloy is formed at the position of the printed wiring type air-core coil 1c within the thickness of the winding type air-core coil 5. High specific gravity eccentric weight 6
6 is attached to form an eccentric rotor R1. Therefore, even if the eccentric weight 66 is mounted in this way, the thickness of the printed wiring air-core coil is negligible, and the thickness of the eccentric rotor R1 is not sacrificed. In this case, in order to reverse the position of the center of gravity with each of the above embodiments, the shaft holder 22 is required.
The two winding type air-core coil arrangement guides 33 and the three support walls 44 are preferably made of a lightweight, highly slidable resin (for example, a polyamide resin containing potassium titanate whisker having a specific gravity of about 1.3). . Other configurations are the same as those of the above-described embodiments, and thus the same reference numerals are given and the description thereof is omitted. Here, as a modified example of the third embodiment, as shown in FIG.
Two winding type coils 5 are mounted at an opening angle of 0 to 135 degrees (120 degrees in FIG. 6), and an eccentric weight 66 made of a tungsten alloy is placed between the shafts on the opposite side to the winding type air core coil 5. May be placed within the thickness of, and fixed integrally with resin. In this case, the printed wiring type air-core coil is not formed at the position of the eccentric weight 66 on both sides. In this case, since the specific gravity of the tungsten alloy is 18 or more with respect to the specific gravity of eight copper wires, the center of gravity moves to the eccentric weight 66 side, and a large eccentricity is obtained.
【００１５】上記図２、３に示す偏心ロータを備えた扁
平型振動モータは、図７に示すような軸固定型なものに
なる。すなわち、偏心ロータＲとこの偏心ロータＲを回
転自在に支承する軸７とこの偏心ロータＲに空隙を介し
て磁界を与えるマグネット８と、このマグネット８の内
側に配され、前記平板整流子部材１を介して前記各空心
コイル１ｂ、３に電力を与えるブラシ９と、これらを格
納したケース１０ａと前記軸７を固着したブラケット１
０ｂからなるハウジング１０を備えたものにすればよ
い。図中、Ｐは、ポリエステルフィルムからなる被摺動
部材で、ブラシ９の押圧力で前記偏心ロータをケース側
に付勢させたとき受け止めて良好な摺動性を発揮する機
能を有し、軸７が突き出るのを防いでいる。このため、
軸７は径方向の動きが封ぜられて落下などの衝撃に耐え
られる。図中、Ｆは、ブラシ９を半田付け植設したフレ
キシブル給電リードである。The flat type vibration motor having the eccentric rotor shown in FIGS. 2 and 3 is of a fixed shaft type as shown in FIG. That is, an eccentric rotor R, a shaft 7 for rotatably supporting the eccentric rotor R, a magnet 8 for applying a magnetic field to the eccentric rotor R through a gap, and the inside of the magnet 8, Brush 9 for supplying power to each of the air-core coils 1b and 3 through the bracket, a case 10a storing these brushes, and a bracket 1 to which the shaft 7 is fixed.
What is necessary is just to provide the housing 10 made of Ob. In the drawing, P is a slidable member made of a polyester film, which has a function of receiving when the eccentric rotor is urged to the case side by the pressing force of the brush 9 and exhibiting good slidability, and a shaft. It prevents 7 from sticking out. For this reason,
The shaft 7 is sealed from movement in the radial direction and can withstand an impact such as dropping. In the figure, F is a flexible power supply lead on which the brush 9 is soldered and implanted.
【００１６】上記の各実施の形態は、いずれも印刷配線
型空心コイルを一面と他面の２層にしたものを例示した
が、厚みが０．１ｍｍ程度の印刷配線板を２又は３枚ラ
ミネートした多層基板にして４〜６層の印刷配線型空心
コイルにして巻数を増加させてもよい。また、上記の各
実施の形態は、いずれも印刷配線板の上に巻線型空心コ
イルを載置するものを示したが、印刷配線板に巻線型空
心コイルよりわずかに大にした巻線型空心コイル配置ガ
イドとなる穴を開けて前記巻線型空心コイルの一部を埋
め込ませてもよいし、全体を前記摺動性樹脂で一体成形
してもよい。このようにすれば、印刷配線板の厚みだけ
空隙が少なくできるので、実質的空隙磁束密度を増加で
きる。さらに、上記は樹脂軸受けタイプを示したが、図
８に示すように軸ホルダに金属焼結含油軸受ＳＪを格納
した偏心ロータＲＲにしたものでもよい。ここで、図８
に示す各部材は図７と同一符号を付してその説明を省略
する。図示しないがハウジングに軸受を配して偏心ロー
タ側に軸を固定したものでもよい。In each of the embodiments described above, the printed wiring type air-core coil has two layers, one surface and the other surface, but two or three printed wiring boards having a thickness of about 0.1 mm are laminated. The number of turns may be increased by using a printed wiring type air-core coil having four to six layers as a multilayer substrate. Further, in each of the above-described embodiments, the winding type air-core coil is mounted on the printed wiring board, but the winding type air-core coil is slightly larger than the winding type air-core coil on the printed wiring board. A hole serving as an arrangement guide may be opened to partially embed the coiled air core coil, or the whole may be integrally molded with the slidable resin. In this case, the air gap can be reduced by the thickness of the printed wiring board, and the substantial air gap magnetic flux density can be increased. Further, although the resin bearing type has been described above, an eccentric rotor RR in which a metal sintered oil-impregnated bearing SJ is stored in a shaft holder as shown in FIG. 8 may be used. Here, FIG.
The same reference numerals as in FIG. 7 denote the same members, and a description thereof will be omitted. Although not shown, a bearing may be arranged in the housing and the shaft may be fixed to the eccentric rotor side.
【００１７】なお、上記の以外にも、本発明はその技術
的思想、または特徴から逸脱しない範囲で他のいろいろ
な形態で実施することができる。そのため上記の実施の
形態は単なる例示にすぎず、限定的に解釈してはならな
い。この発明の技術的範囲は特許請求の範囲に示すもの
で明細書本文には拘束されない。It should be noted that, other than the above, the present invention can be embodied in various other forms without departing from the technical concept and features thereof. Therefore, the above embodiments are merely examples, and should not be construed as limiting. The technical scope of the present invention is set forth in the appended claims, and is not limited by the specification.
【００１８】[0018]
【発明の効果】この発明の円盤形偏心ロータは上述のよ
うに構成したので、遠心力による振動を適切に発生しな
がらも、空心コイルを有効導体部分が基準電気開角とな
るように大にできるので高効率を得ることができ、巻線
型空心コイルは１個あるいは２個ですむので組み付け、
結線も容易にでき、ロータの厚みを増やさずに遠心力に
よる振動を適切に発生させることができる。上記請求項
１に示す課題達成手段によれば、円盤形であるので磁極
の開角である基準電気開角まで有効導体部が来るように
各空心コイルのサイズを設定でき、また、端末の結線も
容易にでき、円盤形ながらも偏心させることができる。
また、請求項２、３に示す課題達成手段によれば、巻線
型空心コイルは１個か２個ですむので、コストパフォー
マンスがよい。請求項４に示す課題達成手段によれば、
上述の偏心ロータを備えているので、低コストや効率の
よい大振動量が得られる扁平型振動モータが得られる。Since the disk-type eccentric rotor of the present invention is constructed as described above, the air-core coil is largely formed so that the effective conductor portion has the reference electric opening angle while appropriately generating vibration due to centrifugal force. High efficiency can be obtained because it is possible, and only one or two wire wound air core coils are needed.
Wiring can be easily performed, and vibration due to centrifugal force can be appropriately generated without increasing the thickness of the rotor. According to the means for achieving the object set forth in the first aspect, since the disk is disk-shaped, the size of each air-core coil can be set so that the effective conductor portion comes up to the reference electric opening angle, which is the opening angle of the magnetic pole. Can be easily performed, and the disk can be eccentric in shape.
In addition, according to the means for achieving the object described in claims 2 and 3, since only one or two wound-type air-core coils are required, cost performance is good. According to the object achieving means described in claim 4,
Since the above-described eccentric rotor is provided, a flat vibration motor that can obtain a large amount of vibration with low cost and efficiency can be obtained.
【図１】本発明の円盤形偏心ロータを構成する平板型整
流子部材の第１の実施の形態を示す一面側から見た平面
図である。FIG. 1 is a plan view showing a first embodiment of a flat commutator member constituting a disk-shaped eccentric rotor of the present invention, as viewed from one surface side.
【図２】同平板型整流子部材を他面側から見た円盤形偏
心ロータの平面図であるFIG. 2 is a plan view of the disk-type eccentric rotor when the plate-type commutator member is viewed from the other side.
【図３】図２のＡ−Ａ線切断断面図である。FIG. 3 is a sectional view taken along line AA of FIG. 2;
【図４】本発明の円盤形偏心ロータの第２の実施の形態
を示す平面図である。FIG. 4 is a plan view showing a second embodiment of the disk-shaped eccentric rotor of the present invention.
【図５】同第３の実施の形態を示す要部断面図である。FIG. 5 is a sectional view of a main part showing the third embodiment.
【図６】図５の変形例の平面図である。FIG. 6 is a plan view of a modification of FIG. 5;
【図７】図２、図３の円盤形偏心ロータを用いた扁平型
コアレス振動モータの断面図である。FIG. 7 is a cross-sectional view of a flat coreless vibration motor using the disk-shaped eccentric rotor of FIGS. 2 and 3;
【図８】本発明の第３の実施の形態の円盤形偏心ロータ
を用いた扁平型コアレス振動モータの断面図である。FIG. 8 is a cross-sectional view of a flat coreless vibration motor using a disk-shaped eccentric rotor according to a third embodiment of the present invention.
【図９】従来の小型振動モータの斜視図である。FIG. 9 is a perspective view of a conventional small vibration motor.
１、１１ 平板型整流子部材 １ａ 軸挿通孔 ａ、ｂ、ｃ、ｄ、ｅ、ｆ 整流子セグメントランド １ｂ 印刷配線型空心コイル １ｄ、１ｅ、１ｆ 各空心コイルの端末結線ランド １ｇ 巻線型空心コイル配置ガイド孔 １ｊ 補強孔 １ｈ 挿通部 Ｒ、Ｒ１ 円盤形偏心ロータ ２、２２ 軸ホルダ ３ 巻線型空心コイル配置ガイド ４ 支壁 ５ 巻線型空心コイル ６、６６ 偏心ウエイト ７ 軸 ８ マグネット ９ ブラシ １０ ハウジング ＳＪ 含油軸受 1,11 Flat commutator member 1a Shaft insertion hole a, b, c, d, e, f Commutator segment land 1b Printed wiring type air core coil 1d, 1e, 1f Terminal connection land of each air core coil 1g Winding air core coil Arrangement guide hole 1j Reinforcement hole 1h Insertion part R, R1 Disc-shaped eccentric rotor 2, 22 Shaft holder 3 Winding air core coil arrangement guide 4 Support wall 5 Winding air core coil 6, 66 Eccentric weight 7 Axis 8 Magnet 9 Brush 10 Housing SJ Oil-impregnated bearing
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１３年８月８日（２００１．８．８）[Submission date] August 8, 2001 (2001.8.8)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】 円盤形偏心ロータ及び同ロータを有す
る扁平型振動モータPatent application title: Disc type eccentric rotor and flat type vibration motor having the same
【特許請求の範囲】[Claims]
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】この発明は、移動体通信装置のサ
イレントコール手段として用いられる扁平型振動モータ
とその主要部材である偏心ロータの改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat type vibration motor used as a silent call means of a mobile communication device and an improvement of an eccentric rotor which is a main member thereof.
【０００２】[0002]
【従来の技術】従来より、ページャや携帯電話機等のサ
イレントコール手段として図９に示すように円筒直流モ
ータＭの出力軸Ｓにタングステン合金製の偏心ウエイト
Ｗを配し、回転時にこの偏心ウエイトＷの遠心力の差を
利用して振動を発生させるようにしたものが知られてい
る。2. Description of the Related Art Conventionally, as shown in FIG. 9, an eccentric weight W made of a tungsten alloy is arranged on an output shaft S of a cylindrical DC motor M as a silent call means for a pager, a portable telephone or the like. There is known an apparatus which generates vibration by utilizing a difference in centrifugal force of the vibration.
【０００３】ところが、上記従来の出力軸Ｓに偏心ウエ
イトＷを付加するものでは、ページャなどの機器側にお
いて、この偏心ウエイトＷの旋回空間を配慮しなくては
ならないなど、設計的な制約があり、高価なタングステ
ン合金を使用するためコスト的にも問題があった。However, in the case where the eccentric weight W is added to the conventional output shaft S, there is a design limitation such that the turning space of the eccentric weight W must be taken into consideration on a device such as a pager. However, there is a problem in cost because an expensive tungsten alloy is used.
【０００４】最近では、このような円筒型直流モータも
細筒が求められ、直径が４ｍｍ程度のものが使われ始め
ている。しかしながら、振動量を得るため、モータ本体
は４ｍｍでも出力軸に配した偏心ウエイトの旋回空間は
６ｍｍ程度あり、また、円筒型はそのままでは載置する
ことができず、通常は取り付け部材が必要となって、か
なりの占有空間を設定せざる得ず、携帯機器の薄型化に
ネックとなっている。また効率も２０〜３０％台のた
め、消費電流が大となってしまう問題がある。このた
め、３ｍｍ以下の厚みが容易に確保できる扁平型モータ
が再認識され始めている。本出願人は先に出力軸をなく
して、本来通常回転型等分配置した３個の空心コイルの
内１個を反対側に移相して偏らせて配置することによ
り、内蔵するロータ自体を偏心させた扁平コアレス型振
動モータを特許第２１３７７２４号（米国特許５０３６
２３９号）として提案している。In recent years, such a cylindrical DC motor has also been required to have a thin cylinder, and a motor having a diameter of about 4 mm has begun to be used. However, in order to obtain the amount of vibration, even if the motor body is 4 mm, the turning space of the eccentric weight arranged on the output shaft is about 6 mm, and the cylindrical type cannot be mounted as it is, and usually requires a mounting member. As a result, a considerable occupied space has to be set, which is a bottleneck in making mobile devices thinner. Further, since the efficiency is in the order of 20 to 30%, there is a problem that the current consumption becomes large. Therefore, flat motors that can easily secure a thickness of 3 mm or less have begun to be recognized again. The present applicant has previously eliminated the output shaft and shifted the phase of one of the three air-core coils originally arranged in a normal rotary type equally to the opposite side so as to be biased, so that the built-in rotor itself was removed. An eccentric flat coreless vibration motor is disclosed in Japanese Patent No. 2137724 (US Pat. No. 5036).
239).
【０００５】同モータは、電機子コイルの有効導体長も
多く採れるので、比較的高効率となり、３Ｖ入力で１０
ｍＡ程度の消費電力が容易に得られる。また、出力軸、
偏心ウエイトがないので、設計的な制約を受けず、使い
勝手がよいし、旋回時の危険性がないなど、市場に好評
をもって迎えられているが、反面、片側に３個の空心コ
アレス巻線を有するので、コイルのサイズが小さなもの
にせざるを得ず、部品点数や加工工数が増加してしま
う。The motor has a relatively high efficiency because the effective conductor length of the armature coil can be increased.
Power consumption of about mA can be easily obtained. Also, the output shaft,
Because there is no eccentric weight, there is no design restriction, it is easy to use, and there is no danger at the time of turning. It has been well received in the market, but on the other hand, three air coreless windings on one side Therefore, the size of the coil must be reduced, and the number of parts and the number of processing steps increase.
【０００６】[0006]
【発明が解決しようとする課題】上記のような片側に３
個の電機子コイルを配置した内蔵型偏心ロータを備えた
ものは、小型化されるほど電機子巻線の間隔がなくな
り、その端末を電機子巻線を損傷しないようにして整流
子に結線するのが至難の技となる。また、各電機子コイ
ルはマグネットの磁極開角より小にせざるを得ず、さら
なる効率の向上が望まれている。また、巻線型空心コイ
ルが３個のため、部品点数も多くなる。SUMMARY OF THE INVENTION
The one with the built-in eccentric rotor in which the armature coils are arranged, the smaller the size, the shorter the interval between the armature windings, and the terminals are connected to the commutator without damaging the armature windings Is the most difficult technique. In addition, each armature coil must be smaller than the magnetic pole opening angle of the magnet, and further improvement in efficiency is desired. In addition, since the number of the wound air core coils is three, the number of parts is increased.
【０００７】この発明の第１の目的は、遠心力による振
動を適切に発生しながらも、高効率を得、組み付けも容
易にできる円盤形偏心ロータにするものである。この発
明の第２の目的は、コイル自体で重心を中心からずらし
て別に偏心部材を配置する必要のない円盤形偏心ロータ
にするものである。この発明の第３の目的は、このよう
な扁平な円盤形偏心ロータを用いることにより、高効率
な部品点数の少ない、コスト的有利な扁平型振動モータ
を提供することにある。A first object of the present invention is to provide a disk-type eccentric rotor which can obtain high efficiency and can be easily assembled while appropriately generating vibrations due to centrifugal force. A second object of the present invention is to provide a disk-shaped eccentric rotor in which it is not necessary to displace the center of gravity from the center of the coil itself and arrange an eccentric member separately. A third object of the present invention is to provide a flat vibration motor having a high efficiency, a small number of parts, and a cost advantage by using such a flat disk-shaped eccentric rotor.
【０００８】[0008]
【課題を解決するための手段】上記の基本的な課題解決
手段は、請求項１に示す発明のように少なくとも１個の
巻線型空心コイル配置面を有する印刷配線型平板整流子
部材であって、中心に軸挿通孔を設け、平面から見て外
形をほぼ円盤形で前記巻線型空心コイルの外周まで拡大
形成してなり、この印刷配線型平板整流子部材の前記軸
挿通孔の周囲に複数個の整流子セグメントランドを形成
し、前記巻線型空心コイル配置面とオーバーラップしな
い位置でコイル端末結線ランドを形成し、前記軸挿通孔
に軸ホルダを設け、この軸ホルダの外方に少なくとも１
個の巻線型空心コイルを載置してその端末を前記端末結
線ランドに結線したもので達成できる。具体的な手段は
請求項２、３に示す発明のように前記巻線型空心コイル
は２個で構成し、この巻線型空心コイルとオーバーラッ
プしない位置にタングステン合金を含む偏心ウエイトを
前記巻線型空心コイルの厚み内となるように載置し樹脂
で固着してなるものか、前記巻線型空心コイルは１個で
構成し、この巻線型空心コイルとオーバーラップしない
位置に少なくとも１個の印刷配線空心コイルを形成し、
この印刷配線空心コイルの位置にタングステン合金を含
む偏心ウエイトを前記巻線型空心コイルの厚み内となる
ように載置し樹脂で固着してなる構成にしたものがよ
い。この偏心ロータを扁平コアレス振動モータにするに
は、請求項４に示す発明のように前記請求項１〜３のい
ずれか１項に記載の円盤形偏心ロータと、この偏心ロー
タを回転自在に支承するためにハウジングの一部固着し
た軸と、このロータに軸方向空隙を介して磁界を与える
マグネットと、このマグネットの内側に配され、前記印
刷配線型平板整流子部材を介して各空心コイルに電力を
与えるブラシと、これらを格納したハウジングからなる
もので達成できる。According to the first aspect of the present invention, there is provided a printed wiring type flat commutator member having at least one winding type air core coil arrangement surface according to the present invention. A shaft insertion hole is provided at the center, and the outer shape is substantially formed in a disk shape when viewed from a plane and is enlarged to the outer periphery of the coiled air core coil. A plurality of the printed wiring type plate commutator members are provided around the shaft insertion hole. Commutator segment lands are formed, coil terminal connection lands are formed at positions that do not overlap with the winding type air core coil placement surface, and a shaft holder is provided in the shaft insertion hole.
This can be achieved by mounting a plurality of wound air-core coils and connecting the terminals to the terminal connection lands. As a specific means, the winding type air core coil is composed of two coils, and the eccentric weight containing a tungsten alloy is provided at a position not overlapping with the winding type air core coil. Either the coil is placed so as to be within the thickness of the coil and fixed with resin, or the wound-type air-core coil is composed of one coil, and at least one printed-wire air-core is located at a position that does not overlap with the coil. Forming a coil,
It is preferable that an eccentric weight containing a tungsten alloy is placed at the position of the printed wiring air-core coil so as to be within the thickness of the wire wound air-core coil and fixed with resin. In order to make this eccentric rotor a flat coreless vibration motor, a disk-shaped eccentric rotor according to any one of claims 1 to 3 and a rotatably supporting this eccentric rotor as in the invention according to claim 4 are provided. A shaft that is partially fixed to the housing, a magnet that applies a magnetic field to the rotor through an axial gap, and a magnet that is disposed inside the magnet and is connected to each air-core coil through the printed wiring type flat commutator member. This can be achieved with a brush that provides power and a housing that contains them.
【０００９】上記請求項１に示す課題達成手段によれ
ば、円盤形であるので磁極の開角である基準電気開角ま
で有効導体部が来るように各空心コイルのサイズ設定が
できるので高効率となり、巻線型空心コイルと印刷配線
型空心コイルの重量差を利用して偏心させることができ
る。端末の結線も容易にでき、厚みを増やさずに薄い偏
心ロータとなる。また、請求項２、３に示す課題達成手
段によれば、巻線型空心コイルの厚みを巧みに利用して
厚みを増やさずにウエイトを載置しながらも薄いロータ
にできるようにし、円盤形ながらも、偏心ウエイトによ
り回転時に大きな遠心力による振動が容易に得られる。
請求項４に示す課題達成手段によれば、出力軸が要らな
い振動モータの特長を生かし、円盤形ながらも遠心力振
動が得られ、コイルの数が少ないためコスト的に有利な
振動モータにできる。According to the first aspect of the present invention, the size of each air-core coil can be set so that the effective conductor portion comes to the reference electric opening angle, which is the opening angle of the magnetic pole, because of the disk shape, so that high efficiency is achieved. Thus, eccentricity can be achieved by utilizing the weight difference between the wound air core coil and the printed wiring air core coil. Terminals can be easily connected, and a thin eccentric rotor can be obtained without increasing the thickness. According to the means for achieving the object set forth in claims 2 and 3, the thickness of the wound air-core coil is skillfully utilized so that a thin rotor can be formed while placing a weight without increasing the thickness. In addition, vibration due to a large centrifugal force during rotation can be easily obtained by the eccentric weight.
According to the fourth aspect of the present invention, a centrifugal force vibration can be obtained in spite of a disk shape by utilizing the features of a vibration motor that does not require an output shaft. .
【００１０】[0010]
【発明の実施の形態】以下、図面に示す各実施の形態に
基づき本発明の構成を説明する。図１は本発明の円盤形
偏心ロータを構成する印刷配線型平板整流子部材の第１
の実施の形態を示す一面側から見た平面図である。図２
は同平板整流子部材を他面側から見た偏心ロータの平面
図である。図３は図２のＡ−Ａ線切断断面図である。図
４は本発明の円盤形偏心ロータの第２の実施の形態を示
す平面図である。図５は同第３の実施の形態を示す要部
断面図である。図６は図５の変形例の平面図である。図
７は図２、図３の円盤形偏心ロータを用いた扁平型コア
レス振動モータの断面図である。図８は本発明の第３の
実施の形態の円盤形偏心ロータを用いた扁平型コアレス
振動モータの断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below based on embodiments shown in the drawings. FIG. 1 shows a first example of a printed wiring type flat commutator member constituting a disc-shaped eccentric rotor of the present invention.
FIG. 2 is a plan view showing one embodiment as viewed from one surface side. FIG.
FIG. 3 is a plan view of the eccentric rotor when the plate commutator member is viewed from the other side. FIG. 3 is a sectional view taken along line AA of FIG. FIG. 4 is a plan view showing a second embodiment of the disk-shaped eccentric rotor of the present invention. FIG. 5 is a cross-sectional view of a main part showing the third embodiment. FIG. 6 is a plan view of a modification of FIG. FIG. 7 is a cross-sectional view of a flat coreless vibration motor using the disk-shaped eccentric rotor of FIGS. FIG. 8 is a sectional view of a flat coreless vibration motor using a disk-shaped eccentric rotor according to a third embodiment of the present invention.
【００１１】図１において、１は、厚みが０．３ｍｍ程
度の銅箔を両面に形成した印刷配線板で外形を平面から
見てほぼ円盤形に後述の巻線型空心コイルが取付できる
範囲まで拡大形成して平板型整流子部材としたもので、
中心に軸挿入孔１ａを設け、この軸挿通孔１ａの周囲の
一面に対向するセグメントを他面も利用してスルーホー
ルＳ１，Ｓ２などでショートした６個の整流子セグメン
トランドａ、ｂ、ｃ、ｄ、ｅおよびｆを形成すると共に
その外方に１個の有効導体部分（放線方向）の中心部分
の開角がほぼ９０度（マグネットの磁極開角に等しい）
になるようにした印刷配線型空心コイル１ｂを形成し、
かつ他面の外周部に各空心コイルの巻き終わり端末一括
結線ランド１ｄと巻き始め端末結線ランド１ｅ、１ｆを
形成してある。ここで前記印刷配線型空心コイルの巻き
始め端末は、１面側で直接前記整流子セグメントランド
ｄに接続されるようになっている。この印刷配線型空心
コイル１ｂと１２０度離れた位置で引き回しランドリー
ド植設用として隔壁を残して２個の巻線型空心コイル配
置ガイド孔１ｇ、１ｇをそれぞれ配し、この巻線型空心
コイル配置ガイド孔１ｇの両側に３等分の位置に穿設し
た補強孔１ｊ‥‥と巻線型空心コイル配置ガイド孔１ｇ
とは互いに補強のために挿通部１ｈを介している。ここ
でスルーホールＳ１は少し大径にして補強孔としての機
能も果たしている。ここではさらに前記印刷配線型空心
コイル１ｂは巻き数を稼ぐためにスルーホールＳ３を介
して他面側に同様に形成したものと直列接続してある。
また、この印刷配線型空心コイル１ｂは本図では引き回
しリードを除いて便宜上コイル各線は一本の実線で表し
ており、巻線型に比べてコーナーを角にできるので有効
導体長（磁極の開角部分）を目いっぱい伸ばしてトルク
がでるようにしている。上記印刷配線型平板整流子部材
１の外周部には、切り欠きｇ、ｈ及びｊが形成された巻
線型空心コイル端末結線ランドが形成され、巻線型空心
コイル端末を半田付け、あるいは熱溶着時に仮固定でき
るように掛け止められるようになっている。なお、ここ
で上記６個のセグメントランドはそのまま整流子片を構
成できるように表面を金メッキして平板整流子にしてい
るが、銅箔のままにして別に整流子を端子で結線するも
のでも良い。In FIG. 1, reference numeral 1 denotes a printed wiring board formed on both sides with a copper foil having a thickness of about 0.3 mm, which is substantially disc-shaped when viewed from a plane and is enlarged to a range where a later-described coiled air-core coil can be mounted. Formed into a flat commutator member,
A shaft insertion hole 1a is provided at the center, and six commutator segment lands a, b, and c are short-circuited by through-holes S1, S2, etc., using a segment facing one surface around the shaft insertion hole 1a as the other surface. , D, e, and f, and an opening angle of a central portion of one effective conductor portion (radiation direction) on the outside thereof is approximately 90 degrees (equal to the magnetic pole opening angle of the magnet).
To form a printed wiring type air-core coil 1b
At the outer peripheral portion of the other surface, a terminal end connection land 1d and a winding start terminal connection land 1e, 1f of each air core coil are formed. Here, a terminal at the beginning of winding of the printed wiring type air core coil is directly connected to the commutator segment land d on one surface side. Two winding-type air-core coil arrangement guide holes 1g, 1g are arranged except for the partition wall for placing land leads at a position 120 degrees apart from the printed wiring-type air-core coil 1b. Reinforcing holes 1j # drilled at three equal positions on both sides of hole 1g, and wound-type air-core coil arrangement guide holes 1g
Are interposed through the insertion portion 1h for reinforcement. Here, the through hole S1 has a slightly larger diameter and also functions as a reinforcing hole. Here, the printed wiring type air-core coil 1b is further connected in series with a coil formed on the other surface side through a through hole S3 in order to increase the number of turns.
In this figure, the printed wiring type air-core coil 1b is represented by a single solid line for convenience except for the lead wires in the drawing, and the corners can be made corners as compared with the wound type, so that the effective conductor length (opening angle of the magnetic pole) Part) is stretched as much as possible to produce torque. On the outer peripheral portion of the printed wiring type flat commutator member 1, a winding type air core coil terminal connection land having cutouts g, h and j is formed, and the winding type air core coil terminal is soldered or heat-sealed. It is designed to be hooked so that it can be temporarily fixed. Although the surface of the six segment lands is plated with gold to form a commutator piece as it is, a flat commutator may be used. Alternatively, a commutator may be separately connected to a terminal by leaving the copper foil. .
【００１２】次に上記のような平板型整流子部材１を用
いて円盤形偏心ロータＲにするには、図２、３に示すよ
うに他面において、密度４程度の高摺動性樹脂で軸ホル
ダ２と２個の内径側の巻線型空心コイル配置ガイド３お
よび外径側の巻線型空心コイル配置ガイドを兼ねる３個
の支壁４を、前記補強孔１ｊと巻線型空心コイル配置ガ
イド孔１ｇに各挿通部１ｈを介してアウトサート一体成
形により立ち上げ、２個の巻線型空心コイル配置ガイド
３に有効導体部分がほぼ９０度になるようにした巻線型
空心コイル５を装着し、その端末５ａを前記端末結線ラ
ンド１ｄ，１ｅ、１ｆに半田付けあるいは熱溶着により
結線すればよい。Next, in order to make the disk-shaped eccentric rotor R by using the above-mentioned plate-type commutator member 1, as shown in FIGS. The shaft holder 2 and the three supporting walls 4 serving also as two inner diameter side wound type air core coil arrangement guides and the outer diameter side wound type air core coil arrangement guides are provided with the reinforcing holes 1j and the wound type air core coil arrangement guide holes. 1g is started up by the outsert integral molding through each insertion portion 1h, and the winding type air-core coil 5 having an effective conductor portion substantially at 90 degrees is mounted on the two winding-type air-core coil arrangement guides 3, and The terminal 5a may be connected to the terminal connection lands 1d, 1e, 1f by soldering or heat welding.
【００１３】図４に示すものは、第２の実施の形態を示
すもので２個の印刷配線型コイル１ｂと１個の巻線型空
心コイル５が配置できるようにした平面を円盤形にした
印刷配線型平板整流子部材１１である。この場合、支壁
４は巻線型空心コイル５を位置決め固定するだけでよい
ので２個でよいし、外周部に配した端末結線ランドは２
個ですむ。図中同一部材は同一符号を付してその説明は
省略する。このようにすると巻線型空心コイルは１個で
よいのでコストパフォーマンス上から有利なものとな
る。FIG. 4 shows a second embodiment of the present invention, in which a printed surface is formed in a disk shape so that two printed wiring type coils 1b and one wound air core coil 5 can be arranged. This is a wiring type flat commutator member 11. In this case, the support wall 4 only needs to position and fix the wire-wound air-core coil 5, so that only two support walls 4 are required.
You only need one. In the drawings, the same members are denoted by the same reference numerals, and description thereof will be omitted. In this case, only one wound air core coil is required, which is advantageous in terms of cost performance.
【００１４】図５は本発明の印刷配線型平板整流子部材
を用いた偏心ロータの第３の実施の形態を示すもので、
すなわち、印刷配線型空心コイル１ｂと巻線型空心コイ
ル５の厚みの差に着眼して大振動量を得るために印刷配
線型空心コイル１ｃの位置に巻線型空心コイル５の厚み
内でタングステン合金からなる高比重の偏心ウエイト６
６を装着して偏心ロータＲ１にしたものである。したが
って、このように偏心ウエイト６６を装着しても印刷配
線空心コイルは厚みが無視できる程度のため、偏心ロー
タＲ１の厚みは犠牲にならない。この場合は、重心の位
置を上記の各実施の形態と逆にするために軸ホルダ２２
と２個の巻線型空心コイル配置ガイド３３および３個の
支壁４４等は軽量化した高摺動性樹脂（たとえば比重
１．３程度のチタン酸カリウムウイスカ入りポリアミド
系樹脂）にするのがよい。その他の構成は上記各の実施
の形態と同様なため同一符号を付してその説明を省略す
る。なお、ここでは、上記第３の実施の形態の変形例と
して、図６に示すように印刷配線型整流子部材１に１１
０度ないし１３５度（図６では１２０度）の配置開角で
２個の巻線型コイル５を載置し、軸を間にこの反対側に
タングステン合金からなる偏心ウエイト６６を巻線型空
心コイル５の厚み内で載置し、樹脂で一体に固着してい
るものでもよい。この場合は偏心ウエイト６６の位置に
は両面とも印刷配線型空心コイルは形成していない。こ
のようにすれば、銅線の比重８台に対してタングステン
合金の比重は１８以上得られるので、重心は偏心ウエイ
ト６６側に移動して大きな偏心が得られることになる。FIG. 5 shows a third embodiment of the eccentric rotor using the printed wiring type flat commutator member of the present invention.
That is, in order to obtain a large amount of vibration by focusing on the difference between the thickness of the printed wiring type air-core coil 1b and the thickness of the winding type air-core coil 5, a tungsten alloy is formed at the position of the printed wiring type air-core coil 1c within the thickness of the winding type air-core coil 5. High specific gravity eccentric weight 6
6 is attached to form an eccentric rotor R1. Therefore, even if the eccentric weight 66 is mounted in this way, the thickness of the printed wiring air-core coil is negligible, and the thickness of the eccentric rotor R1 is not sacrificed. In this case, in order to reverse the position of the center of gravity with each of the above embodiments, the shaft holder 22 is required.
The two winding type air-core coil arrangement guides 33 and the three support walls 44 are preferably made of a lightweight, highly slidable resin (for example, a polyamide resin containing potassium titanate whisker having a specific gravity of about 1.3). . Other configurations are the same as those of the above-described embodiments, and thus the same reference numerals are given and the description thereof is omitted. Here, as a modified example of the third embodiment, as shown in FIG.
Two winding type coils 5 are mounted at an opening angle of 0 to 135 degrees (120 degrees in FIG. 6), and an eccentric weight 66 made of a tungsten alloy is placed between the shafts on the opposite side to the winding type air core coil 5. May be placed within the thickness of, and fixed integrally with resin. In this case, the printed wiring type air-core coil is not formed at the position of the eccentric weight 66 on both sides. In this case, since the specific gravity of the tungsten alloy is 18 or more with respect to the specific gravity of eight copper wires, the center of gravity moves to the eccentric weight 66 side, and a large eccentricity is obtained.
【００１５】上記図２、３に示す偏心ロータを備えた扁
平型振動モータは、図７に示すような軸固定型なものに
なる。すなわち、偏心ロータＲとこの偏心ロータＲを回
転自在に支承する軸７とこの偏心ロータＲに空隙を介し
て磁界を与えるマグネット８と、このマグネット８の内
側に配され、前記平板整流子部材１を介して前記各空心
コイル１ｂ、３に電力を与えるブラシ９と、これらを格
納したケース１０ａと前記軸７を固着したブラケット１
０ｂからなるハウジング１０を備えたものにすればよ
い。図中、Ｐは、ポリエステルフィルムからなる被摺動
部材で、ブラシ９の押圧力で前記偏心ロータをケース側
に付勢させたとき受け止めて良好な摺動性を発揮する機
能を有し、軸７が突き出るのを防いでいる。このため、
軸７は径方向の動きが封ぜられて落下などの衝撃に耐え
られる。図中、Ｆは、ブラシ９を半田付け植設したフレ
キシブル給電リードである。The flat type vibration motor having the eccentric rotor shown in FIGS. 2 and 3 is of a fixed shaft type as shown in FIG. That is, an eccentric rotor R, a shaft 7 for rotatably supporting the eccentric rotor R, a magnet 8 for applying a magnetic field to the eccentric rotor R through a gap, and the inside of the magnet 8, Brush 9 for supplying power to each of the air-core coils 1b and 3 through the bracket, a case 10a storing these brushes, and a bracket 1 to which the shaft 7 is fixed.
What is necessary is just to provide the housing 10 made of Ob. In the drawing, P is a slidable member made of a polyester film, which has a function of receiving when the eccentric rotor is urged to the case side by the pressing force of the brush 9 and exhibiting good slidability, and a shaft. It prevents 7 from sticking out. For this reason,
The shaft 7 is sealed from movement in the radial direction and can withstand an impact such as dropping. In the figure, F is a flexible power supply lead on which the brush 9 is soldered and implanted.
【００１６】上記の各実施の形態は、いずれも印刷配線
型空心コイルを一面と他面の２層にしたものを例示した
が、厚みが０．１ｍｍ程度の印刷配線板を２又は３枚ラ
ミネートした多層基板にして４〜６層の印刷配線型空心
コイルにして巻数を増加させてもよい。また、上記の各
実施の形態は、いずれも印刷配線板の上に巻線型空心コ
イルを載置するものを示したが、印刷配線板に巻線型空
心コイルよりわずかに大にした巻線型空心コイル配置ガ
イドとなる穴を開けて前記巻線型空心コイルの一部を埋
め込ませてもよいし、全体を前記摺動性樹脂で一体成形
してもよい。このようにすれば、印刷配線板の厚みだけ
空隙が少なくできるので、実質的空隙磁束密度を増加で
きる。さらに、上記は樹脂軸受けタイプを示したが、図
８に示すように軸ホルダに金属焼結含油軸受ＳＪを格納
した偏心ロータＲＲにしたものでもよい。ここで、図８
に示す各部材は図７と同一符号を付してその説明を省略
する。図示しないがハウジングに軸受を配して偏心ロー
タ側に軸を固定したものでもよい。In each of the embodiments described above, the printed wiring type air-core coil has two layers, one surface and the other surface, but two or three printed wiring boards having a thickness of about 0.1 mm are laminated. The number of turns may be increased by using a printed wiring type air-core coil having four to six layers as a multilayer substrate. Further, in each of the above-described embodiments, the winding type air-core coil is mounted on the printed wiring board, but the winding type air-core coil is slightly larger than the winding type air-core coil on the printed wiring board. A hole serving as an arrangement guide may be opened to partially embed the coiled air core coil, or the whole may be integrally molded with the slidable resin. In this case, the air gap can be reduced by the thickness of the printed wiring board, and the substantial air gap magnetic flux density can be increased. Further, although the resin bearing type has been described above, an eccentric rotor RR in which a metal sintered oil-impregnated bearing SJ is stored in a shaft holder as shown in FIG. 8 may be used. Here, FIG.
The same reference numerals as in FIG. 7 denote the same members, and a description thereof will be omitted. Although not shown, a bearing may be arranged in the housing and the shaft may be fixed to the eccentric rotor side.
【００１７】なお、上記の以外にも、本発明はその技術
的思想、または特徴から逸脱しない範囲で他のいろいろ
な形態で実施することができる。そのため上記の実施の
形態は単なる例示にすぎず、限定的に解釈してはならな
い。この発明の技術的範囲は特許請求の範囲に示すもの
で明細書本文には拘束されない。It should be noted that, other than the above, the present invention can be embodied in various other forms without departing from the technical concept and features thereof. Therefore, the above embodiments are merely examples, and should not be construed as limiting. The technical scope of the present invention is set forth in the appended claims, and is not limited by the specification.
【００１８】[0018]
【発明の効果】この発明の円盤形偏心ロータは上述のよ
うに構成したので、遠心力による振動を適切に発生しな
がらも、空心コイルを有効導体部分が基準電気開角とな
るように大にできるので高効率を得ることができ、巻線
型空心コイルは１個あるいは２個ですむので組み付け、
結線も容易にでき、ロータの厚みを増やさずに遠心力に
よる振動を適切に発生させることができる。上記請求項
１に示す課題達成手段によれば、円盤形であるので磁極
の開角である基準電気開角まで有効導体部が来るように
各空心コイルのサイズを設定でき、また、端末の結線も
容易にでき、円盤形ながらも偏心させることができる。
また、請求項２、３に示す課題達成手段によれば、巻線
型空心コイルは１個か２個ですむので、コストパフォー
マンスがよい。請求項４に示す課題達成手段によれば、
上述の偏心ロータを備えているので、低コストや効率の
よい大振動量が得られる扁平型振動モータが得られる。Since the disk-type eccentric rotor of the present invention is constructed as described above, the air-core coil is largely formed so that the effective conductor portion has the reference electric opening angle while appropriately generating vibration due to centrifugal force. High efficiency can be obtained because it is possible, and only one or two wire wound air core coils are needed.
Wiring can be easily performed, and vibration due to centrifugal force can be appropriately generated without increasing the thickness of the rotor. According to the means for achieving the object set forth in the first aspect, since the disk is disk-shaped, the size of each air-core coil can be set so that the effective conductor portion comes up to the reference electric opening angle, which is the opening angle of the magnetic pole. Can be easily performed, and the disk can be eccentric in shape.
In addition, according to the means for achieving the object described in claims 2 and 3, since only one or two wound-type air-core coils are required, cost performance is good. According to the object achieving means described in claim 4,
Since the above-described eccentric rotor is provided, a flat vibration motor that can obtain a large amount of vibration with low cost and efficiency can be obtained.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の円盤形偏心ロータを構成する平板型整
流子部材の第１の実施の形態を示す一面側から見た平面
図である。FIG. 1 is a plan view showing a first embodiment of a flat commutator member constituting a disk-shaped eccentric rotor of the present invention, as viewed from one surface side.
【図２】同平板型整流子部材を他面側から見た円盤形偏
心ロータの平面図であるFIG. 2 is a plan view of the disk-type eccentric rotor when the plate-type commutator member is viewed from the other side.
【図３】図２のＡ−Ａ線切断断面図である。FIG. 3 is a sectional view taken along line AA of FIG. 2;
【図４】本発明の円盤形偏心ロータの第２の実施の形態
を示す平面図である。FIG. 4 is a plan view showing a second embodiment of the disk-shaped eccentric rotor of the present invention.
【図５】同第３の実施の形態を示す要部断面図である。FIG. 5 is a sectional view of a main part showing the third embodiment.
【図６】図５の変形例の平面図である。FIG. 6 is a plan view of a modification of FIG. 5;
【図７】図２、図３の円盤形偏心ロータを用いた扁平型
コアレス振動モータの断面図である。FIG. 7 is a cross-sectional view of a flat coreless vibration motor using the disk-shaped eccentric rotor of FIGS. 2 and 3;
【図８】本発明の第３の実施の形態の円盤形偏心ロータ
を用いた扁平型コアレス振動モータの断面図である。FIG. 8 is a cross-sectional view of a flat coreless vibration motor using a disk-shaped eccentric rotor according to a third embodiment of the present invention.
【図９】従来の小型振動モータの斜視図である。FIG. 9 is a perspective view of a conventional small vibration motor.
【符号の説明】 １、１１ 平板型整流子部材 １ａ 軸挿通孔 ａ、ｂ、ｃ、ｄ、ｅ、ｆ 整流子セグメントランド １ｂ 印刷配線型空心コイル １ｄ、１ｅ、１ｆ 各空心コイルの端末結線ランド １ｇ 巻線型空心コイル配置ガイド孔 １ｊ 補強孔 １ｈ 挿通部 Ｒ、Ｒ１ 円盤形偏心ロータ ２、２２ 軸ホルダ ３ 巻線型空心コイル配置ガイド ４ 支壁 ５ 巻線型空心コイル ６、６６ 偏心ウエイト ７ 軸 ８ マグネット ９ ブラシ １０ ハウジング ＳＪ 含油軸受 ─────────────────────────────────────────────────────
[Description of Signs] 1,11 Plate-type commutator member 1a Shaft insertion hole a, b, c, d, e, f Commutator segment land 1b Printed wiring type air core coil 1d, 1e, 1f Terminal connection land of each air core coil 1g Wound air core coil arrangement guide hole 1j Reinforcement hole 1h Insertion part R, R1 Disc-shaped eccentric rotor 2, 22 Axis holder 3 Winding air core coil arrangement guide 4 Support wall 5 Wound air core coil 6, 66 Eccentric weight 7 Axis 8 Magnet 9 Brush 10 Housing SJ Oil-impregnated bearing ─────────────────────────────────────────── ──────────
【手続補正書】[Procedure amendment]
【提出日】平成１３年９月２１日（２００１．９．２
１）[Submission date] September 21, 2001 (2001.9.2)
1)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】請求項１[Correction target item name] Claim 1
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００８[Correction target item name] 0008
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００８】[0008]
【課題を解決するための手段】上記の基本的な課題解決
手段は、請求項１に示す発明のように外形がほぼ円盤形
で平面から見て少なくとも１個の巻線型空心コイル載置
面を巻線型空心コイルの外周まで拡大形成してなる印刷
配線型平板整流子部材であって、中心に軸挿通孔を設
け、この軸挿通孔の周囲の一面に複数個の整流子セグメ
ントランドを形成すると共に、空心コイル載置面とオー
バーラップしない位置でコイル端末結線ランドを他面側
に形成し、巻線型空心コイルの位置決めガイドを兼ねる
ものであって、径方向に伸びる少なくとも２個の支壁を
一体化した軸ホルダを前記軸挿通孔において他面側に立
ち上げ、この軸ホルダの外方で前記支壁間に少なくとも
１個の巻線型空心コイルを載置し、その端末を前記端末
結線ランドに結線したもので達成できる。具体的な手段
は請求項２、３に示す発明のように前記巻線型空心コイ
ルは２個で構成し、この巻線型空心コイルとオーバーラ
ップしない位置にタングステン合金を含む偏心ウエイト
を前記巻線型空心コイルの厚み内となるように載置し樹
脂で固着してなるものか、前記巻線型空心コイルは１個
で構成し、この巻線型空心コイルとオーバーラップしな
い位置に少なくとも１個の印刷配線空心コイルを形成
し、この印刷配線空心コイルの位置にタングステン合金
を含む偏心ウエイトを前記巻線型空心コイルの厚み内と
なるように載置し樹脂で固着してなる構成にしたものが
よい。この偏心ロータを扁平コアレス振動モータにする
には、請求項４に示す発明のように前記請求項１〜３の
いずれか１項に記載の円盤形偏心ロータと、この偏心ロ
ータを回転自在に支承するためにハウジングの一部固着
した軸と、このロータに軸方向空隙を介して磁界を与え
るマグネットと、このマグネットの内側に配され、前記
印刷配線型平板整流子部材を介して各空心コイルに電力
を与えるブラシと、これらを格納したハウジングからな
るもので達成できる。 ─────────────────────────────────────────────────────
The basic means for solving the above-mentioned problems is that, as in the first aspect of the present invention, the outer surface is substantially disc-shaped and at least one winding-type air-core coil mounting surface is viewed from a plane. A printed wiring type flat commutator member that is formed so as to be enlarged to the outer periphery of a wound type air core coil, provided with a shaft insertion hole in the center, and formed with a plurality of commutator segment lands on one surface around the shaft insertion hole. At the same time, a coil terminal connection land is formed on the other surface side at a position that does not overlap with the air-core coil mounting surface, which also serves as a positioning guide for the wound-type air-core coil, and has at least two support walls extending in the radial direction. The integrated shaft holder is raised on the other surface side in the shaft insertion hole, at least one wire-wound air-core coil is placed between the support walls outside the shaft holder, and the terminal is connected to the terminal connection land. Connected to It can be achieved with things. As a specific means, the winding type air core coil is composed of two coils, and the eccentric weight containing a tungsten alloy is provided at a position not overlapping with the winding type air core coil. Either the coil is placed so as to be within the thickness of the coil and fixed with resin, or the wound-type air-core coil is composed of one coil, and at least one printed-wire air-core is located at a position that does not overlap with the coil. Preferably, a coil is formed, and an eccentric weight containing a tungsten alloy is placed at the position of the printed wiring air-core coil so as to be within the thickness of the wound air-core coil, and is fixed by resin. In order to make this eccentric rotor a flat coreless vibration motor, a disk-shaped eccentric rotor according to any one of claims 1 to 3 and a rotatably supporting this eccentric rotor as in the invention according to claim 4 are provided. A shaft that is partially fixed to the housing, a magnet that applies a magnetic field to the rotor through an axial gap, and a magnet that is disposed inside the magnet and is connected to each air-core coil through the printed wiring type flat commutator member. This can be achieved with a brush that provides power and a housing that contains them. ────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１４年１月２８日（２００２．１．２
８）[Submission date] January 28, 2002 (2002.1.2
8)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Correction target item name] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【特許請求の範囲】[Claims]
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００８[Correction target item name] 0008
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００８】[0008]
【課題を解決するための手段】上記の基本的な課題解決
手段は、請求項１に示す発明のように、外形がほぼ円盤
形で平面から見て２個の巻線型空心コイル載置面を巻線
型空心コイルの外周まで拡大形成してなる印刷配線型平
板整流子部材（１）であって、中心に軸挿通孔（１ａ）
を設け、この軸挿通孔の周囲の一面側に複数個の整流子
セグメントランド（ａ〜ｆ）を形成すると共に、巻線型
空心コイル載置面と平面から見てオーバーラップしない
位置でコイル端末結線ランド（１ｄ、１ｅ、１ｆ）を他
面側に形成し、巻線型空心コイルの位置決めガイドを兼
ねるものであって径方向に伸びる少なくとも２個の支壁
（４、４４）を一体化した樹脂製の軸ホルダ（２、２
２）を前記軸挿通孔のところで他面側に立ち上げ、この
軸ホルダの外方で前記支壁間に２個の巻線型空心コイル
（３、３３）を載置し、その端末（５ａ）を前記端末結
線ランドに結線し、前記巻線型空心コイル載置面と平面
から見てオーバーラップしない位置にタングステン合金
を含む偏心ウエイト（６６）を前記巻線型空心コイルの
厚み内になるように載置して樹脂で固定したもので達成
できる。上記の別の基本的な課題解決手段は、請求項２
に示す発明のように、外形がほぼ円盤形で平面から見て
１個の巻線型空心コイル載置面を巻線型空心コイルの外
周まで拡大形成してなる印刷配線型平板整流子部材（１
１）であって、中心に軸挿通孔（１ａ）を設け、この軸
挿通孔の周囲の一面に複数個の整流子セグメントランド
を形成すると共に、前記巻線型空心コイル載置面とオー
バーラップしない位置で少なくとも１個の印刷配線空心
コイル（１ｂ）を形成し、他面側に各コイル端末結線ラ
ンド（１ｄ，１ｅ）を形成し、巻線型空心コイルの位置
決めガイドを兼ねるものであって径方向に伸びる少なく
とも２個の支壁（４）を一体化した樹脂製の軸ホルダ
（２）を前記軸挿通孔のところで他面側に立ち上げ、こ
の軸ホルダの外方で前記支壁間に１個の巻線型空心コイ
ル（５）を載置し、その端末（５ａ）を前記端末結線ラ
ンドに結線し、前記印刷配線空心コイルの位置にタング
ステン合金を含む偏心ウエイト（６６）を前記巻線型空
心コイルの厚み内になるように載置して樹脂で固定した
もので達成できる。そして、このようなロータをモータ
にするには、請求項４に示すように、前記請求項１〜４
のいずれか１項に記載の円盤形偏心ロータと、このロー
タを支承する軸と、この軸の基端を支持するブラケット
（１０ｂ）と前記軸の他端を支持するケース（１０ａ）
とからなるハウジング（１０）と、前記ブラケットに配
され、前記ロータに軸方向空隙を介して磁界を与えるマ
グネットと、このマグネットの内側で前記ブラケットに
配され、前記円盤形偏心ロータに電力を与える一対のブ
ラシと、このブラシの押接力により前記円盤形偏心ロー
タを前記ケース側に付勢させ、このケース側で前記円盤
形偏心ロータの軸の周囲を受け止めるようにしたもので
達成できる。Means for Solving the Problems The basic means for solving the above problems is that, as in the first aspect of the present invention, the outer surface is substantially disc-shaped and two winding-type air-core coil mounting surfaces are viewed from a plane. A printed wiring type flat commutator member (1) formed so as to be enlarged to the outer periphery of a wound air core coil, and a shaft insertion hole (1a) is provided at the center.
And a plurality of commutator segment lands (a to f) are formed on one surface side around the shaft insertion hole, and the coil terminal connection is made at a position that does not overlap the winding type air core coil mounting surface when viewed from a plane. The lands (1d, 1e, 1f) are formed on the other surface side, and also serve as a positioning guide for the wound type air core coil, and are made of resin in which at least two support walls (4, 44) extending in the radial direction are integrated. Shaft holders (2, 2
2) is raised on the other surface side at the shaft insertion hole, and two wound air core coils (3, 33) are placed between the support walls outside the shaft holder, and the terminal (5a) Is connected to the terminal connection land, and an eccentric weight (66) containing a tungsten alloy is mounted at a position not overlapping with the winding-type air-core coil mounting surface when viewed from a plane so as to be within the thickness of the winding-type air-core coil. It can be achieved by placing and fixing with resin. The above another basic problem solving means is described in claim 2
As shown in the invention, a printed wiring type flat commutator member (1) is formed by enlarging and forming one winding-type air-core coil mounting surface to the outer periphery of the winding-type air-core coil when viewed from a plane with a substantially disk-shaped outer shape.
1), wherein a shaft insertion hole (1a) is provided at the center, a plurality of commutator segment lands are formed on one surface around the shaft insertion hole, and do not overlap with the winding type air core coil mounting surface. At least one printed wiring air-core coil (1b) is formed at the position, and each coil terminal connection land (1d, 1e) is formed on the other surface side, and also serves as a positioning guide for the wound-type air-core coil, and A resin-made shaft holder (2) having at least two support walls (4) extending from the shaft holder is set up on the other surface side at the shaft insertion hole, and a space between the support walls is provided outside the shaft holder. The coiled air core coil (5) is placed, its terminal (5a) is connected to the terminal connection land, and an eccentric weight (66) containing a tungsten alloy at the position of the printed wiring air coil is connected to the wound air core. Within the thickness of the coil Can be achieved with those fixed with resin is placed so that. In order to make such a rotor into a motor, as described in claim 4, the above-mentioned claims 1-4
A eccentric rotor according to any one of the above, a shaft supporting the rotor, a bracket (10b) supporting a base end of the shaft, and a case (10a) supporting the other end of the shaft.
And a magnet disposed on the bracket for applying a magnetic field to the rotor through an axial gap, and disposed on the bracket inside the magnet to supply power to the disk-shaped eccentric rotor. A pair of brushes and the disk-shaped eccentric low
To the case side, and the disk
This can be achieved by receiving the circumference of the shaft of the eccentric type rotor .
【手続補正３】[Procedure amendment 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００９[Correction target item name] 0009
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００９】上記請求項１に示す課題達成手段によれ
ば、円盤形であるので磁極の開角である基準電気開角ま
で有効導体部が来るように各空心コイルのサイズ設定が
できるので高効率となり、巻線型空心コイルとタングス
テン合金からなる偏心ウエイトの重量差を利用して偏心
させることができ、端末の結線も容易にでき、厚みを増
やさずに薄い偏心ロータとなり、円盤形ながらも、偏心
ウエイトにより回転時に大きな遠心力による振動が容易
に得られる。また、請求項２に示す課題達成手段によれ
ば、巻線型空心コイルと印刷配線型空心コイルの厚みの
差を巧みに利用して厚みを増やさずにウエイトを載置し
ながらも薄いロータにできるようにし、円盤形ながら
も、タングステン合金からなる偏心ウエイトにより回転
時に大きな遠心力による振動が容易に得られる。請求項
３に示す課題達成手段によれば、少ないコストで軸受損
失の少ない偏心ロータが得られる。請求項４に示す課題
達成手段によれば、出力軸が要らない振動モータの特長
を生かし、偏心ロータを円盤形にして空心電機子コイル
を基準電気開角まで大にすることによって高効率を得、
円盤形ながらも遠心力振動が得られ、コイルの数が少な
いためコスト的に有利な振動モータにできる。According to the first aspect of the present invention, the size of each air-core coil can be set so that the effective conductor portion comes to the reference electric opening angle, which is the opening angle of the magnetic pole, because of the disk shape, so that high efficiency is achieved. Eccentricity can be achieved by utilizing the weight difference between the coiled air core coil and the eccentric weight made of tungsten alloy, the connection of the terminal can be easily performed, and a thin eccentric rotor without increasing the thickness becomes a thin eccentric rotor. Vibration due to large centrifugal force during rotation can be easily obtained by the weight. According to the means for achieving the object set forth in claim 2, it is possible to make a thin rotor while placing weights without increasing the thickness by skillfully utilizing the difference in thickness between the wound air core coil and the printed wiring air core coil. In this way, vibration due to a large centrifugal force can be easily obtained at the time of rotation by the eccentric weight made of the tungsten alloy while having a disk shape. According to the means for achieving the object set forth in claim 3, an eccentric rotor with a small bearing loss and a small cost can be obtained. According to the fourth aspect of the present invention, high efficiency can be obtained by making use of the features of a vibration motor that does not require an output shaft, making the eccentric rotor a disk shape, and increasing the air-core armature coil to a reference electric opening angle. ,
Centrifugal vibration can be obtained in spite of the disk shape, and the number of coils is small, so that a vibration motor that is advantageous in cost can be obtained.
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０２Ｋ 7/065 Ｈ０２Ｋ 7/065 ５Ｈ６１３ 13/00 13/00 Ｄ ５Ｈ６２３ 13/04 13/04 23/54 23/54 23/58 23/58 Ｚ Ｆターム(参考） 5D107 AA03 AA20 BB08 CC08 CC09 DD08 DD09 5H603 AA09 BB01 BB14 CA02 CA05 CB01 CB04 CB13 CB16 CC14 CC19 CD13 CD21 CD25 CE01 EE01 EE09 5H604 AA00 AA08 BB01 BB13 CC02 CC04 CC20 DB01 QB04 5H605 AA07 AA08 BB05 BB20 CC01 CC04 CC05 CC07 EB06 EB15 GG01 5H607 AA00 BB01 BB13 CC01 DD02 DD03 DD08 DD10 DD16 EE58 GG01 GG09 GG10 GG25 JJ04 KK07 5H613 AA00 AA01 AA03 BB04 BB07 BB14 GA04 GA05 GB14 GB17 KK08 PP02 PP04 PP05 PP07 PP08 5H623 AA10 BB06 GG11 HH06 HH07 HH09 JJ03 JJ05 JJ06 LL09 LL13 LL16 Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (reference) H02K 7/065 H02K 7/065 5H613 13/00 13/00 D 5H623 13/04 13/04 23/54 23/54 23 / 58 23/58 ZF term (reference) 5D107 AA03 AA20 BB08 CC08 CC09 DD08 DD09 5H603 AA09 BB01 BB14 CA02 CA05 CB01 CB04 CB13 CB16 CC14 CC19 CD13 CD21 CD25 CE01 EE01 EE09 5H604 AA00 AA08 BB01 CCB CCB CCB CCB CCB CCB CCB CCQ BB05 BB20 CC01 CC04 CC05 CC07 EB06 EB15 GG01 5H607 AA00 BB01 BB13 CC01 DD02 DD03 DD08 DD10 DD16 EE58 GG01 GG09 GG10 GG25 JJ04 KK07 5H613 AA00 AA01 AA03 BB04 BB07 BB14 H04 PG05 H07 PP06 JJ03 JJ05 JJ06 LL09 LL13 LL16
Claims (5)
する印刷配線型平板整流子部材であって、中心に軸挿通
孔を設け、平面から見て外形をほぼ円盤形で前記巻線型
空心コイルの外周まで拡大形成してなり、この印刷配線
型平板整流子部材の前記軸挿通孔の周囲に複数個の整流
子セグメントランドを形成し、前記空心コイル配置面と
オーバーラップしない位置でコイル端末結線ランドを形
成し、前記軸挿通孔に巻線型空心コイルの位置決めガイ
ドを兼ねる少なくとも２個の径方向に伸びる支壁を一体
化した軸ホルダを設け、この軸ホルダの外方の前記支壁
間に少なくとも１個の巻線型空心コイルを載置してその
端末を前記端末結線ランドに結線した円盤形偏心ロー
タ。1. A printed wiring type flat commutator member having at least two air core coil arrangement surfaces, wherein a shaft insertion hole is provided at the center, and the outer shape of the wound air core coil is substantially disc-shaped when viewed from above. A plurality of commutator segment lands are formed around the shaft insertion hole of this printed wiring type flat commutator member, and coil terminal connection lands are formed at positions not overlapping with the air core coil arrangement surface. A shaft holder having at least two radially extending support walls serving also as positioning guides for the wound air core coil is provided in the shaft insertion hole, and at least between the support walls outside the shaft holder. A disk-shaped eccentric rotor in which one wound air-core coil is mounted and its terminal is connected to the terminal connection land.
この巻線型空心コイルとオーバーラップしない位置にタ
ングステン合金を含む偏心ウエイト（６６）を前記巻線
型空心コイルの厚み内となるように載置し樹脂で固着し
てなる請求項１に記載の円盤形偏心ロータ。2. The winding type air core coil comprises two pieces,
2. The disk-shaped coil according to claim 1, wherein an eccentric weight (66) containing a tungsten alloy is placed so as not to overlap with the wound-type air-core coil so as to be within the thickness of the wound-type air-core coil and fixed with resin. Eccentric rotor.
この巻線型空心コイルとオーバーラップしない位置に少
なくとも１個の印刷配線空心コイルを形成し、この印刷
配線空心コイルの位置にタングステン合金を含む偏心ウ
エイトを前記巻線型空心コイルの厚み内となるように載
置し樹脂で固着してなる請求項１に記載の円盤形偏心ロ
ータ。3. The winding type air core coil is constituted by one piece,
At least one printed wiring air-core coil is formed at a position that does not overlap with the wound air-core coil, and an eccentric weight containing a tungsten alloy is placed at a position of the printed wiring air-core coil within the thickness of the wound air-core coil. 2. The disk-shaped eccentric rotor according to claim 1, which is mounted and fixed with resin.
請求項１に記載の円盤形偏心ロータ。4. The disk-shaped eccentric rotor according to claim 1, wherein an oil-impregnated bearing is disposed on the shaft holder.
の円盤形偏心ロータと、この偏心ロータを支承する軸
と、このロータに軸方向空隙を介して磁界を与えるマグ
ネットと、このマグネットの内側に配され、前記印刷配
線型平板整流子部材を介して前記空心コイルに電力を与
えるブラシと、これらを格納したハウジングからなる扁
平型振動モータ。5. A disk-shaped eccentric rotor according to claim 1, a shaft for supporting the eccentric rotor, a magnet for applying a magnetic field to the rotor through an axial gap, A flat vibration motor including a brush which is arranged inside a magnet and supplies power to the air-core coil via the printed wiring type flat commutator member, and a housing in which the brush is stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001234608A JP3357355B2 (en) | 2000-08-11 | 2001-08-02 | Disc-shaped eccentric rotor and flat type vibration motor having the same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000-244571 | 2000-08-11 | ||
| JP2000244571 | 2000-08-11 | ||
| JP2001234608A JP3357355B2 (en) | 2000-08-11 | 2001-08-02 | Disc-shaped eccentric rotor and flat type vibration motor having the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002119915A true JP2002119915A (en) | 2002-04-23 |
| JP3357355B2 JP3357355B2 (en) | 2002-12-16 |
Family
ID=26597849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001234608A Expired - Fee Related JP3357355B2 (en) | 2000-08-11 | 2001-08-02 | Disc-shaped eccentric rotor and flat type vibration motor having the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3357355B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7247963B2 (en) | 2003-12-26 | 2007-07-24 | Tokyo Parts Industrial Co., Ltd. | Eccentric rotor and vibration motor using such eccentric rotor |
| KR100935509B1 (en) | 2002-09-13 | 2010-01-06 | 도쿄파츠고교 가부시키가이샤 | Slim type coreless motor |
-
2001
- 2001-08-02 JP JP2001234608A patent/JP3357355B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100935509B1 (en) | 2002-09-13 | 2010-01-06 | 도쿄파츠고교 가부시키가이샤 | Slim type coreless motor |
| US7247963B2 (en) | 2003-12-26 | 2007-07-24 | Tokyo Parts Industrial Co., Ltd. | Eccentric rotor and vibration motor using such eccentric rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3357355B2 (en) | 2002-12-16 |
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