JP3458916B2 - Rotary transformer type resolver - Google Patents
Rotary transformer type resolverInfo
- Publication number
- JP3458916B2 JP3458916B2 JP09144095A JP9144095A JP3458916B2 JP 3458916 B2 JP3458916 B2 JP 3458916B2 JP 09144095 A JP09144095 A JP 09144095A JP 9144095 A JP9144095 A JP 9144095A JP 3458916 B2 JP3458916 B2 JP 3458916B2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- core
- rotating
- fixed
- sheet coil
- 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.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ＦＡ、ＯＡ機器のサー
ボ制御で用いられる回転トランス形レゾルバに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary transformer type resolver used for servo control of FA and OA equipment.
【０００２】[0002]
【従来の技術】従来の回転トランス形レゾルバは、例え
ば図６に示すように、円筒状のフレームの内側に中空円
筒状の１次側トランスコアＣ１を備え、１次側トランス
コアＣ１には交流電源に接続する回転トランス部Ａの１
次側巻線Ａ１を設けてある。また、１次側トランスコア
Ｃ１に隣接してフレームの内側に中空円筒状の２次側レ
ゾルバコアＤ２を設け、２次側レゾルバコアＤ２には信
号発生部Ｂの２相の検出巻線Ｂ２ａ，Ｂ２ｂを備えてい
る。１次側トランスコアＣ１の内側、および２次側レゾ
ルバコアＤ２の内側に、それぞれ空隙を介して対向する
ように円筒状の回転トランス部Ａの２次側トランスコア
Ｃ２および信号発生部Ｂの１次側レゾルバコアＤ１を配
置し、２次側トランスコアＣ２および１次側レゾルバコ
アＤ１を共通のシャフトＥに固定してある。２次側トラ
ンスコアＣ２には回転トランス部Ａの２次側巻線Ａ２を
設け、１次側レゾルバコアＤ１には信号発生部Ｂの励磁
巻線Ｂ１を設け、回転トランス部Ａの２次側巻線Ａ２と
励磁巻線Ｂ１は渡り線Ｆにより接続し、信号発生部Ｂの
励磁を行っている。2. Description of the Related Art A conventional rotary transformer resolver is provided with a hollow cylindrical primary side transformer core C1 inside a cylindrical frame as shown in FIG. 1 of the rotary transformer part A that connects to the power supply
A secondary winding A1 is provided. Further, a hollow cylindrical secondary resolver core D2 is provided adjacent to the primary transformer core C1 and a two-phase detection winding B2a, B2b of the signal generator B is provided in the secondary resolver core D2. I have it. Inside the primary-side transformer core C1 and inside the secondary-side resolver core D2, the primary side of the secondary-side transformer core C2 and the signal generating section B of the cylindrical rotary transformer section A are opposed to each other with a gap therebetween. The side resolver core D1 is arranged, and the secondary side transformer core C2 and the primary side resolver core D1 are fixed to a common shaft E. The secondary transformer core C2 is provided with the secondary winding A2 of the rotary transformer section A, the primary resolver core D1 is provided with the excitation winding B1 of the signal generating section B, and the secondary transformer winding of the rotary transformer section A is wound. The wire A2 and the excitation winding B1 are connected by a crossover F to excite the signal generator B.
【０００３】[0003]
【発明が解決しようとする課題】ところが、従来技術で
は、回転トランス部の２次側巻線と信号発生部の励磁巻
線はそれぞれ別個のコアである２次側トランスコアと１
次側レゾルバコアに設けてあるので、シャフトに２次側
トランスコアと１次側レゾルバコアを取りつけた後、２
次側巻線と励磁巻線とを渡り線によって接続している。
そのため、加工工程が複雑となり、それぞれ渡り線の接
続で工数が増加し、レゾルバ自体のコスト増につながる
という問題があった。そこで、本発明は、渡り線の接続
をあらかじめプリント配線により行うことにより、加工
工数を低減し、低コストで高精度のレゾルバを提供する
ことを目的とする。However, in the prior art, the secondary winding of the rotary transformer and the exciting winding of the signal generator are separate cores, namely the secondary transformer core and the primary winding.
Since it is provided on the secondary resolver core, after mounting the secondary transformer core and primary resolver core on the shaft, 2
The secondary winding and the excitation winding are connected by a crossover wire.
Therefore, there is a problem that the processing process becomes complicated, the number of steps for connecting the crossovers increases, and the cost of the resolver itself increases. Therefore, an object of the present invention is to provide a resolver of high accuracy at a low cost by reducing the processing man-hours by connecting the crossover wires in advance by printed wiring.
【０００４】[0004]
【課題を解決するための手段】上記問題を解決するた
め、本発明は、固定側コアの中心部に形成された回転ト
ランスの一次側巻線と、その周辺に形成された信号発生
部の検出巻線からなる固定側シートコイルと、回転側コ
アの中心部に形成されて空隙を介して前記一次側巻線に
対向する前記回転トランスの二次側巻線と、その周辺に
形成されて空隙を介して前記検出巻線に対向する前記信
号発生部の励磁巻線からなる回転側シートコイルとを備
えた回転トランス形レゾルバにおいて、前記固定側コア
および前記回転側コアの各接続部に対応する部分に凹部
を設けて、前記固定側シートコイルおよび前記回転側シ
ートコイルを前記凹部に押し付けて変形させたことを特
徴としている。 SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is directed to a rotary plate formed at the center of a stationary core.
Primary side winding of lance and signal generation formed around it
Fixed side sheet coil consisting of the detection winding of the
A is formed in the center of the
On the secondary winding of the rotating transformer and the surrounding area
The signal that is formed and faces the detection winding through an air gap.
Equipped with a rotating side sheet coil consisting of the excitation winding of the signal generator
In the rotary transformer type resolver, the fixed core
And a recess in the portion corresponding to each connecting portion of the rotating core.
Is provided, and the fixed-side sheet coil and the rotating-side sheet coil are provided.
The special feature is that the coil is pressed against the recess to deform it.
It is a sign.
【０００５】[0005]
【作用】上記手段により、一つの回転側シートコイルに
回転トランス部の二次側巻線と信号発生部の励磁巻線を
設けて、あらかじめ、プリント配線等により直列に接続
してあるので、二次側巻線と励磁巻線の間の渡り線が不
要となり、２枚のシートコイルを固定側および回転側の
両方のコア表面に配置し、両コアを所定の空隙を介して
対向させるだけでレゾルバを構成できるので、製造コス
トを大幅に低減でき低価格のレゾルバを提供できる。ま
た、固定子側と回転子側のシートコイル間の空隙を狭く
できるため、Ｓ／Ｎ比の高いレゾルバを提供できる。 By the above means, the secondary winding of the rotary transformer and the exciting winding of the signal generator are provided in one rotating sheet coil and are connected in series in advance by printed wiring or the like. A crossover wire between the secondary winding and the excitation winding is not required, and two sheet coils can be placed on both the fixed and rotating core surfaces, and both cores can be made to face each other with a predetermined gap. Since the resolver can be configured, it is possible to significantly reduce the manufacturing cost and provide a low-cost resolver. Well
Also, narrow the gap between the stator side and the rotor side sheet coil.
Therefore, a resolver having a high S / N ratio can be provided.
【０００６】[0006]
【実施例】本発明の実施例を図に基づいて説明する。図
１は本発明の第１の実施例を示す凹部形成前の側断面図
で、シートコイルを円盤状に形成した３極対数のアキシ
ャルギャップ形レゾルバの例である。図１において、１
は円板状のフェライト等の高周波鉄損特性の良い材料か
らなる磁性体板１０を備えた固定側コア、２は固定側コ
ア１の空隙面に接着等により固定された固定側シートコ
イルで、回転トランス部Ａの一次側巻線２１と、信号発
生部Ｂの検出巻線２２とをエッチング、印刷またはプレ
ス加工によるプリント配線により平板状の導体から形成
し、円板状のポリイミドからなる絶縁基板２３の表裏面
に接着して形成し、更に導体の表面にはポリイミド樹脂
などにより絶縁処理をしてある。３は固定側コア１に空
隙を介して対向するように設けた円板状の回転側コア
で、固定側コア１と同様に磁性体板３０を備えている。
回転側コア３はその中心部をシャフト３１に固定し、固
定側コア１に固定したブラケット１１、１１’とに軸受
１２を介して支持してある。４は回転側コア３の空隙面
に接着等により固定された回転側シートコイルで、回転
トランスＡの二次側巻線４１と、信号発生部Ｂの励磁巻
線４２とを同様にプリント配線により形成し、円板状の
ポリイミドからなる絶縁基板４３の表裏面に接着して形
成し、更に導体の表面にはポリイミド樹脂などにより絶
縁処理をしてある。図２は凹部形成後の本発明の実施例
の構成図である。図では回転トランス部Ａの一次側巻線
２１、二次側巻線４１、信号発生部の励磁巻線４２、検
出巻線４１の各接続端子およびスルーホールの接続部の
断面を誇張して示している。すなわち、固定側コア１お
よび回転側コア３の各スルーホールなどの接続部に対応
する部分に凹部１３、３２を設けて、固定側シートコイ
ル２および回転側シートコイル４を凹部１３、３２に押
し付けて変形させてある。この構成により、各端子およ
びスルーホールを半田メッキにより接続した時に、固定
側シートコイルおよび回転側シートコイルの表面から飛
び出すことがなく、したがって空隙長さを小さく設定す
ることができる。なお、固定側コア１と固定側シートコ
イル２との固定、および回転側コア３と回転側シートコ
イル４との固定を接着で行う場合、接着剤の厚さが２５
μｍ程度になるため、磁気的空隙が増加するので、消費
電力の増加につながる。それで、接着剤に軟性フェライ
トなどの軟磁性粉末を混入すると、接着剤の比透磁率が
向上し、磁気的空隙が減少して、消費電力を低減するこ
とができる。Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view showing a first embodiment of the present invention before forming a recess, which is an example of a three-pole-pair axial gap type resolver in which a sheet coil is formed in a disk shape. In FIG. 1, 1
Is a fixed-side core provided with a magnetic plate 10 made of a material having good high-frequency iron loss characteristics such as disc-shaped ferrite, and 2 is a fixed-side sheet coil fixed to the void surface of the fixed-side core 1 by adhesion or the like. The primary winding 21 of the rotary transformer portion A and the detection winding 22 of the signal generating portion B are formed of a flat conductor by printed wiring by etching, printing or press working, and an insulating substrate made of a disc-shaped polyimide. It is formed by adhering to the front and back surfaces of No. 23, and the surface of the conductor is subjected to insulation treatment with polyimide resin or the like. Reference numeral 3 denotes a disk-shaped rotating core provided so as to face the fixed core 1 with a gap, and includes a magnetic plate 30 like the fixed core 1.
The rotating core 3 has its center fixed to the shaft 31 and is supported by the brackets 11 and 11 ′ fixed to the fixed core 1 via the bearing 12. Reference numeral 4 denotes a rotating-side sheet coil fixed to the air gap surface of the rotating-side core 3 by adhesion or the like, and the secondary winding 41 of the rotary transformer A and the exciting winding 42 of the signal generator B are similarly printed wiring. It is formed by adhering it to the front and back surfaces of an insulating substrate 43 made of a disc-shaped polyimide, and the surface of the conductor is further insulated with a polyimide resin or the like. FIG. 2 shows an embodiment of the present invention after formation of recesses.
It is a block diagram of. In the figure, the primary winding of the rotary transformer section A
21, the secondary winding 41, the excitation winding 42 of the signal generator,
Of each connecting terminal of the outgoing winding 41 and the connecting portion of the through hole
The cross section is exaggerated. That is, the fixed core 1
Corresponding to each through hole etc. of the rotating side core 3
By providing the recesses 13 and 32 in the portion to be
2 and the sheet coil 4 on the rotating side are pushed into the recesses 13 and 32.
It has been attached and transformed. With this configuration, each terminal and
Fixed when soldering through holes and through holes
From the surface of the side sheet coil and the rotating side sheet coil.
It does not stick out and therefore the gap length can be set small.
You can In addition, when fixing the fixed side core 1 and the fixed side sheet coil 2 and fixing the rotating side core 3 and the rotating side sheet coil 4 by adhesion, the thickness of the adhesive is 25
Since it becomes about μm, the magnetic gap increases, which leads to an increase in power consumption. Therefore, when soft magnetic powder such as soft ferrite is mixed in the adhesive, the relative permeability of the adhesive is improved, the magnetic gap is reduced, and the power consumption can be reduced.
【０００７】固定側シートコイル１は、図４（ａ），
（ｂ）に示すように、信号発生部Ｂの検出巻線２２と回
転トランス部Ａの一次側巻線２１からなっている。信号
発生部Ｂの検出巻線２２は、（ａ）に示す絶縁基板２３
の表側の外周部にＡ相巻線２２ａを配置し、（ｂ）に示
す裏側の外周部にＢ相巻線２２ｂをＡ相巻線２２ａと電
気的に９０度ずれるように配置している。本実施例は３
極対数であるので、Ａ相巻線２２ａおよびＢ相巻線２２
ｂは、それぞれ絶縁基板２３の外周部に扇形の集中巻導
体２４が３極対をなすように円形に配置されている。集
中巻導体２４は径方向に伸びる複数の鎖交導体２４ａ
（磁束に鎖交する導体）と、鎖交導体２４ａを結ぶ円周
方向に伸びる円弧状の複数のコイルエンド部２４ｂとか
らなっている。Ａ相巻線２２ａおよびＢ相巻線２２ｂの
内周側の絶縁基板２３の両面には、回転トランス部Ａの
渦巻状の一次巻線パターン２１ａ，２１ｂからなる一次
側巻線２１を設け、それぞれＡ相巻線パターン２２ａと
一次巻線パターン２１ａで一つの巻線パターン、Ｂ相巻
線パターン２２ｂと一次巻線パターン２１ｂで一つの巻
線パターンを形成している。回転側シートコイル４は、
図５（ａ），（ｂ）に表面および裏面を示すように、信
号発生部Ｂの励磁巻線４２と回転トランス部Ａの二次側
巻線４１からなっている。信号発生部Ｂの励磁巻線４２
は、絶縁基板４３の両面の外周部に扇形の集中巻導体４
４からなる３極対の励磁巻線パターン４２ａ，４２ｂを
配置して１回路の励磁巻線４２を形成するように接続し
てある。集中巻導体４４は径方向に伸びる複数の鎖交導
体４４ａと、鎖交導体４４ａを結ぶ円周方向に伸びる円
弧状の複数のコイルエンド部４４ｂとからなっている。
その内周側の絶縁基板４３の両面に回転トランス部Ａの
渦巻状の二次巻線パターン４１ａ，４１ｂからなる二次
側巻線４１を設けている。二次巻線パターン４１ａと励
磁巻線パターン４２ａおよび二次巻線パターン４１ｂと
励磁巻線パターン４２ｂとはそれぞれ絶縁基板４３の同
一面上に形成された一つの巻線パターンによって形成
し、その巻線パターンには励磁巻線パターン４２ａと４
１ｂを直列に結ぶ接続部Ｔ３を設けている。The fixed-side sheet coil 1 is shown in FIG.
As shown in (b), the detection winding 22 of the signal generator B and the primary winding 21 of the rotary transformer A are provided. The detection winding 22 of the signal generator B has an insulating substrate 23 shown in FIG.
The A-phase winding 22a is arranged on the outer periphery on the front side of the above, and the B-phase winding 22b is arranged on the outer periphery on the back side shown in (b) so as to be electrically deviated from the A-phase winding 22a by 90 degrees. This example is 3
Since it has the number of pole pairs, the A-phase winding 22a and the B-phase winding 22
b are arranged in a circular shape so that the fan-shaped concentrated winding conductors 24 form three pole pairs on the outer peripheral portion of the insulating substrate 23. The concentrated winding conductor 24 includes a plurality of interlinking conductors 24a extending in the radial direction.
(A conductor that links the magnetic flux) and a plurality of arc-shaped coil end portions 24b that extend in the circumferential direction and that connect the link conductors 24a. On both surfaces of the insulating substrate 23 on the inner peripheral side of the A-phase winding 22a and the B-phase winding 22b, primary side windings 21 composed of spiral primary winding patterns 21a and 21b of the rotary transformer section A are provided, respectively. The A-phase winding pattern 22a and the primary winding pattern 21a form one winding pattern, and the B-phase winding pattern 22b and the primary winding pattern 21b form one winding pattern. The rotation side sheet coil 4 is
As shown in the front and back surfaces of FIGS. 5A and 5B, the excitation winding 42 of the signal generator B and the secondary winding 41 of the rotary transformer A are provided. Excitation winding 42 of signal generator B
Is a fan-shaped concentrated winding conductor 4 on the outer peripheral portions of both surfaces of the insulating substrate 43.
Exciting winding patterns 42a and 42b of three pole pairs of 4 are arranged and connected so as to form the exciting winding 42 of one circuit. The concentrated winding conductor 44 includes a plurality of interlinking conductors 44a extending in the radial direction and a plurality of arcuate coil end portions 44b extending in the circumferential direction connecting the interlinking conductors 44a.
Secondary windings 41 composed of spiral secondary winding patterns 41a, 41b of the rotary transformer A are provided on both surfaces of the insulating substrate 43 on the inner peripheral side. The secondary winding pattern 41a and the exciting winding pattern 42a, and the secondary winding pattern 41b and the exciting winding pattern 42b are respectively formed by one winding pattern formed on the same surface of the insulating substrate 43, and the winding pattern is formed. Excitation winding patterns 42a and 4
A connection portion T3 that connects 1b in series is provided.
【０００８】固定側シートコイル１内の回転トランス部
Ａの一次側巻線２１の回路は、図３および図４に示すよ
うに、交流電源ＡＣもしくはパルス発生器に接続される
端子から一次巻線パターン２１ａの外周導体に接続さ
れ、渦巻き状に内側に巻かれて、その内側導体からスル
ーホールＴを通って、裏側の一次巻線パターン２１ｂに
接続され、その内側導体から渦巻き状に外側に巻かれて
端子に接続される。信号発生部Ｂの検出巻線２２のＡ相
巻線パターン２２ａは、裏側に設けた端子からスルーホ
ールＴ５を通り、表側に設けたＡ相巻線パターン２２ａ
の中央部のスルーホールＴ５に接続され、集中巻導体２
４を通って外側導体から電気角で１８０°位相差のある
隣接する集中巻導体２４の外側導体に通じる。更に渦巻
き状に内側に巻かれて集中巻導体２４の中央部のスルー
ホールＴを通り、裏側の渡り導体２５に接続され、隣接
する集中巻導体２４の中央部のスルーホールＴを通り、
渦巻き状に外側に巻かれて外側導体を通って更に隣接す
る集中巻導体２４に通じる。これをくり返して最後に裏
側のスルーホールＴ６を通り、端子に接続される。同様
にして、信号発生部Ｂの検出巻線２２のＢ相巻線パター
ン２２ｂは、表側に設けた端子から集中巻導体２４の中
央部のスルーホールＴ７に接続され、順次、隣接する集
中巻導体２４を通り、スルーホールＴ８から端子に接続
される。As shown in FIGS. 3 and 4 , the circuit of the primary winding 21 of the rotary transformer A in the fixed-side sheet coil 1 has a primary winding from a terminal connected to an AC power supply AC or a pulse generator. It is connected to the outer peripheral conductor of the pattern 21a, is spirally wound inside, is passed from the inner conductor through the through hole T, is connected to the primary winding pattern 21b on the back side, and is spirally wound outside from the inner conductor. It is opened and connected to the terminal. The A-phase winding pattern 22a of the detection winding 22 of the signal generator B passes through the through hole T5 from the terminal provided on the back side and the A-phase winding pattern 22a provided on the front side.
Connected to the through hole T5 in the center of the
4 to the outer conductor of the adjacent concentrated winding conductor 24 having a phase difference of 180 ° in electrical angle from the outer conductor. Further, it is spirally wound inside and passes through the through hole T in the central portion of the concentrated winding conductor 24, is connected to the crossover conductor 25 on the back side, and passes through the through hole T in the central portion of the adjacent concentrated winding conductor 24.
It is spirally wound on the outside, passes through the outside conductor, and leads to the adjacent concentrated winding conductor 24. This is repeated, and finally it passes through the through hole T6 on the back side and is connected to the terminal. Similarly, the B-phase winding pattern 22b of the detection winding 22 of the signal generating portion B is connected to the through hole T7 in the central portion of the concentrated winding conductor 24 from the terminal provided on the front side, and the adjacent concentrated winding conductors are sequentially arranged. 24, and is connected to the terminal through the through hole T8.
【０００９】回転側シートコイル４内の二次側巻線４１
は、図３および図５に示すように、固定側シートコイル
の一次側巻線２１と対応するように渦巻き状に巻かれ
て、それぞれ二次巻線パターン４１ａ，４１ｂ一方の端
部はスルーホールＴによって接続されている。また、励
磁巻線４２は表裏面の集中巻導体２４の中央部のスルー
ホールＴによって接続されている。表面の二次巻線パタ
ーン４１ａの他方端部と励磁巻線パターン４２ａとは同
一パターン上に設けた接続部４５ａで、裏面の二次巻線
パターン４１ｂの他方端部と表面の励磁巻線パターン４
２ａとはスルーホールＴ３によって接続して、各巻線パ
ターンを直列に接続してある。回転トランス部Ａの固定
10 側シートコイル２の一次側巻線２１に交流電圧を印
加すると、回転側シートコイル４の二次側巻線４１に交
流電圧が誘起され、二次側巻線４１に接続された励磁巻
線４２が励磁されて、励磁巻線２２と検出巻線２２の相
互インダクタンスにより、検出巻線２２に誘起電圧が発
生する。この検出巻線２２の誘起電圧の大きさはロータ
の回転角度により正弦波状に変化するので、検出巻線２
２の誘起電圧を検出することによりロータの回転角度を
検出することができる。Secondary winding 41 in the rotating sheet coil 4
As shown in FIGS. 3 and 5 , the coil is wound in a spiral shape so as to correspond to the primary winding 21 of the fixed-side sheet coil, and one end of each of the secondary winding patterns 41a and 41b is a through hole. Connected by T. The exciting windings 42 are connected by a through hole T in the center of the concentrated winding conductor 24 on the front and back surfaces. The other end portion of the secondary winding pattern 41a on the front surface and the excitation winding pattern 42a are connection portions 45a provided on the same pattern, and the other end portion of the secondary winding pattern 41b on the back surface and the excitation winding pattern on the front surface. Four
2a is connected by a through hole T3, and each winding pattern is connected in series. Fixing the rotating transformer A
When an AC voltage is applied to the primary winding 21 of the 10-side sheet coil 2, an AC voltage is induced in the secondary winding 41 of the rotating-side sheet coil 4, and the excitation winding connected to the secondary winding 41. 42 is excited, and an induced voltage is generated in the detection winding 22 due to the mutual inductance between the excitation winding 22 and the detection winding 22. The magnitude of the induced voltage in the detection winding 22 changes sinusoidally depending on the rotation angle of the rotor.
The rotation angle of the rotor can be detected by detecting the induced voltage of 2.
【００１０】なお、上記実施例では回転トランス部の一
次側巻線および二次側巻線は、信号発生部を形成するリ
ング状に配置した検出巻線および励磁巻線の内側に設け
た例について説明したが、回転トランスの一次側巻線お
よび二次側巻線を信号発生部の検出巻線および励磁巻線
の外側に形成してもよい。In the above embodiment, the primary winding and the secondary winding of the rotary transformer are provided inside the detection winding and the excitation winding which are arranged in a ring shape forming the signal generator. As described above, the primary winding and the secondary winding of the rotary transformer may be formed outside the detection winding and the excitation winding of the signal generator.
【００１１】また、上記実施例は円板状の固定側コア１
に円板状の固定側シートコイル２を設け、固定側シート
コイル２に軸方向の空隙を介して対向し、円板状の回転
側コア３に回転側シートコイル４を設けたアキシャルギ
ャップ形レゾルバについて説明したが、固定側コアを中
空円筒状に形成し、その内側に中空円筒状に形成した固
定側シートコイルを設け、固定側シートコイルに径方向
の空隙を介して対向し、円筒状の回転側コアの外側に円
筒状の回転側シートコイルを設けて、ラジアルギャップ
形レゾルバを形成してもよい。Further, in the above embodiment, the fixed core 1 having a disk shape is used.
An axial gap type resolver in which a disk-shaped fixed-side sheet coil 2 is provided in the disk-shaped rotary coil, the fixed-side sheet coil 2 is opposed to the fixed-side sheet coil 2 with an axial gap, and a disk-shaped rotary-side core 3 is provided with a rotary-side sheet coil 4. The fixed-side core is formed in a hollow cylindrical shape, the fixed-side sheet coil formed in the hollow cylindrical shape is provided inside the fixed-side core, and the fixed-side sheet coil is opposed to the fixed-side sheet coil through a radial gap to form a cylindrical shape. A radial gap type resolver may be formed by providing a cylindrical rotating side sheet coil on the outside of the rotating side core.
【００１２】[0012]
【発明の効果】以上に述べたように、本発明によれば信
号発生部のロータ巻線と回転トランス部の検出巻線は、
同一シートコイル上に連続した導体パターンで一体に形
成されるので、渡り線の接続は不要となり、製作は２枚
のシートコイルをコア表面に固着し、所要の空隙を介し
て対向するだけで良いので、従来例に比べ大幅な工数低
減が可能となる。また、銅損も低減され、消費電力が小
さくなると共に、信号発生部もシートコイルで成形され
るため、起磁力の分布を理想的な形状に容易にすること
ができ、従来に比べ高精度のレゾルバを提供できる効果
がある。さらに、固定子側と回転子側のシートコイル間
の空隙を狭くできるため、Ｓ／Ｎ比の高いレゾルバを提
供できるという効果がある。 As described above, according to the present invention, the rotor winding of the signal generator and the detection winding of the rotary transformer are:
Since it is integrally formed with a continuous conductor pattern on the same sheet coil, the connection of crossovers is not necessary, and it is only necessary to fix two sheet coils to the core surface and to face each other with a required gap. Therefore, it is possible to significantly reduce the number of steps as compared with the conventional example. In addition, copper loss is reduced, power consumption is reduced, and the signal generator is also formed by a sheet coil, so the magnetomotive force distribution can be easily made into an ideal shape, which is more accurate than before. It is effective in providing a resolver. Furthermore, between the sheet coil on the stator side and the rotor side
The resolver with a high S / N ratio can be
There is an effect that you can serve.
【図１】本発明の実施例を示す凹部形成前の側断面図で
ある。FIG. 1 is a side sectional view before forming a recess according to an embodiment of the present invention.
【図２】本発明の実施例を示す凹部形成後の側断面図で
ある。FIG. 2 is a side cross-sectional view after forming a recess showing an embodiment of the present invention.
【図３】本発明の実施例の各部の結線の状態を示す結線
図である。FIG. 3 is a connection diagram showing a connection state of each part of the embodiment of the present invention.
【図４】本発明の実施例の固定側シートコイルを同一方
向から見た（ａ）表側および（ｂ）裏側の平面図であ
る。FIG. 4 is a plan view of (a) a front side and (b) a back side of the fixed-side sheet coil of the embodiment of the present invention viewed from the same direction.
【図５】本発明の実施例の回転側シートコイルを同一方
向から見た（ａ）表側および（ｂ）裏側の平面図であ
る。FIG. 5 is a plan view of (a) a front side and (b) a back side of the rotating-side sheet coil of the embodiment of the present invention viewed from the same direction.
【図６】従来例を示す側断面図である。FIG. 6 is a side sectional view showing a conventional example.
１ 固定側コア、１０、３０ 磁性体板、１１、１１’ブ
ラケット、１２軸受、１３、３２ 凹部、２ 固定側シー
トコイル、２１ 一次側巻線、２１ａ，２１ｂ一次巻線
パターン、２２ 検出巻線、２３ 絶縁基板、２４ 集中
巻導体、２４ａ鎖交導体、２４ｂ コイルエンド部、２
５ 渡り導体、３ 回転側コア、３１ シャフト、４ 回転
側シートコイル、４１ 二次側巻線、４１ａ，４１ｂ 二
次巻線パターン、４２ 励磁巻線、４３ 絶縁基板、４４
集中巻導体、４４ａ 鎖交導体、４４ｂ コイルエンド
部、４５ａ 接続部、Ａ 回転トランス部、Ｂ 信号発生
部、Ｔ，Ｔ３，Ｔ５，Ｔ ６，Ｔ７，Ｔ８ スルーホールDESCRIPTION OF SYMBOLS 1 fixed side core, 10, 30 magnetic material plate, 11, 11 'bracket, 12 bearing, 13, 32 recessed part, 2 fixed side sheet coil, 21 primary side winding, 21a, 21b primary winding pattern, 22 detection winding , 23 insulating substrate, 24 concentrated winding conductor, 24a interlinking conductor, 24b coil end portion, 2
5 crossover conductor, 3 rotation side core, 31 shaft, 4 rotation side sheet coil, 41 secondary winding, 41a, 41b secondary winding pattern, 42 exciting winding, 43 insulating substrate, 44
Concentrated winding conductor, 44a interlaced conductor, 44b coil end part, 45a connecting part, A rotating transformer part, B signal generating part, T, T3, T5, T6, T7, T8 through hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 前村 明彦 福岡県北九州市八幡西区黒崎城石２番１ 号 株式会社 安川電機内 (72)発明者 長瀬 喬 福岡県北九州市八幡西区黒崎城石２番１ 号 株式会社 安川電機内 (56)参考文献 特開 昭63−65302（ＪＰ，Ａ) 特開 昭55−13882（ＪＰ，Ａ) 特開 平４−222447（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) G01B 7/00 G01D 5/245 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiko Maemura No. 2 Kurosaki Shiroishi, Yawatanishi-ku, Kitakyushu, Fukuoka Yasukawa Electric Co., Ltd. No. Yasukawa Electric Co., Ltd. (56) Reference JP 63-65302 (JP, A) JP 55-13882 (JP, A) JP 4-222447 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) G01B 7/00 G01D 5/245
Claims (3)
ンスの一次側巻線と、その周辺に形成された信号発生部
の検出巻線からなる固定側シートコイルと、 回転側コアの中心部に形成されて空隙を介して前記一次
側巻線に対向する前記回転トランスの二次側巻線と、そ
の周辺に形成されて空隙を介して前記検出巻線に対向す
る前記信号発生部の励磁巻線からなる回転側シートコイ
ルとを備えた回転トランス形レゾルバにおいて、 前記固定側コアおよび前記回転側コアの各接続部に対応
する部分に凹部を設けて、前記固定側シートコイルおよ
び前記回転側シートコイルを前記凹部に押し付けて変形
させたことを特徴とする回転トランス形レゾルバ。 1. A rotary tiger formed at the center of a stationary core.
Primary winding and the signal generator formed around it
Fixed side sheet coil consisting of the detection winding of the primary side and the primary side through a gap formed in the center of the rotating side core.
The secondary winding of the rotary transformer facing the side winding, and
Is formed around and faces the detection winding through an air gap.
A rotating-side sheet coil consisting of the excitation winding of the signal generator
Corresponding to each connecting portion of the fixed side core and the rotating side core in a rotary transformer type resolver equipped with
A concave portion is provided in the portion to be
And the rotating-side sheet coil are pressed against the recess to deform
A rotating transformer-type resolver that is characterized by
ンスの一次側巻線と、その周辺に形成された信号発生部
の検出巻線からなる固定側シートコイルと、 回転側コアの中心部に形成されて空隙を介して前記一次
巻線に対向する前記回転トランスの二次側巻線と、その
周辺に形成されて空隙を介して前記検出巻線に対向する
前記信号発生部の励磁巻線からなる回転側シートコイル
とを備えた回転トランス形レゾルバにおいて、 前記固定側コアと前記固定側シートコイルの外周部を円
筒状にし、 前記回転側コアと前記回転側シートコイルの外周部を各
々前記固定側コアと前記固定側シートコイルの前記外周
部と空隙を介して対面するよう円筒状にした ことを特徴
とする回転トランス形レゾルバ。 2. A rotary tiger formed at the center of a stationary core.
Primary winding and the signal generator formed around it
Fixed side sheet coil consisting of the detection winding of the primary side and the primary side through a gap formed in the center of the rotating side core.
A secondary winding of the rotary transformer facing the winding, and
It is formed in the periphery and faces the detection winding via a gap.
Rotating-side sheet coil composed of the excitation winding of the signal generator
In the rotary transformer type resolver including the above, the outer peripheral portion of the fixed side core and the fixed side sheet coil is circled.
The outer core of the rotating core and the rotating sheet coil is made cylindrical.
The fixed core and the outer circumference of the fixed sheet coil
Characterized by a cylindrical shape that faces each other through a gap
Revolving transformer type resolver.
ル、および前記回転側コアと前記回転側シートコイル
は、軟磁性粉末を混入した接着剤により固定されたこと
を特徴とする請求項１または２のいずれかに記載の回転
トランス形レゾルバ。 3. The fixed core and the fixed sheet carp
And the rotating side core and the rotating side sheet coil
Was fixed with an adhesive containing soft magnetic powder
Rotation according to claim 1 or 2, characterized in that
Transformer-type resolver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09144095A JP3458916B2 (en) | 1994-09-16 | 1995-03-24 | Rotary transformer type resolver |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6-248645 | 1994-09-16 | ||
| JP24864594 | 1994-09-16 | ||
| JP09144095A JP3458916B2 (en) | 1994-09-16 | 1995-03-24 | Rotary transformer type resolver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08136211A JPH08136211A (en) | 1996-05-31 |
| JP3458916B2 true JP3458916B2 (en) | 2003-10-20 |
Family
ID=26432879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09144095A Expired - Fee Related JP3458916B2 (en) | 1994-09-16 | 1995-03-24 | Rotary transformer type resolver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3458916B2 (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000042389A1 (en) * | 1999-01-14 | 2000-07-20 | Kabushiki Kaisha Yaskawa Denki | Resolver using sheet coil |
| WO2005040731A1 (en) * | 2003-10-23 | 2005-05-06 | Tamagawa Seiki Co.,Ltd. | Brushless resolver and its constructing method |
| JP4602749B2 (en) * | 2004-12-10 | 2010-12-22 | ミネベア株式会社 | Flat type resolver |
| JP4521506B2 (en) * | 2004-12-16 | 2010-08-11 | 多摩川精機株式会社 | Flat type resolver |
| JP4542916B2 (en) | 2005-02-10 | 2010-09-15 | ミネベア株式会社 | Resolver unit and resolver using it |
| JP4696209B2 (en) * | 2006-07-05 | 2011-06-08 | 多摩川精機株式会社 | Angle detector |
| JP2008039562A (en) * | 2006-08-04 | 2008-02-21 | Meisei Electric Co Ltd | Method and device for detecting position of mobile |
| JP2008197046A (en) * | 2007-02-15 | 2008-08-28 | Aisan Ind Co Ltd | Resolver |
| JP4845236B2 (en) * | 2007-02-28 | 2011-12-28 | 愛三工業株式会社 | Resolver for automobile drive motor |
| JP5091905B2 (en) * | 2008-11-06 | 2012-12-05 | 愛三工業株式会社 | Motor structure with resolver |
| JP4997216B2 (en) * | 2008-11-25 | 2012-08-08 | 愛三工業株式会社 | Resolver |
| JP5184420B2 (en) | 2009-03-31 | 2013-04-17 | 愛三工業株式会社 | Resolver |
| US8710829B2 (en) | 2009-06-19 | 2014-04-29 | Minebea Co., Ltd. | Sheet coil type resolver |
| JP5275944B2 (en) | 2009-08-20 | 2013-08-28 | ミネベア株式会社 | Sheet coil type resolver |
| JP5364031B2 (en) * | 2010-04-20 | 2013-12-11 | 愛三工業株式会社 | Rotation angle sensor |
| JP5248559B2 (en) * | 2010-08-20 | 2013-07-31 | 愛三工業株式会社 | Position detection sensor |
| US8933601B2 (en) | 2011-02-04 | 2015-01-13 | Aisan Kogyo Kabushiki Kaisha | Detection stator, rotation detector and mounting structure thereof |
| CN103036386B (en) | 2011-10-06 | 2015-07-15 | 爱三工业株式会社 | Angle sensor |
| JP2014006175A (en) * | 2012-06-26 | 2014-01-16 | Aisan Ind Co Ltd | Angle sensor |
| US10308230B2 (en) | 2015-11-13 | 2019-06-04 | Igarashi Electric Works Ltd | Electric parking brake device |
| WO2018011915A1 (en) * | 2016-07-13 | 2018-01-18 | 株式会社五十嵐電機製作所 | Rotation angle detection device and electric motor with rotation angle detection device equipped with same |
| DE102018218666A1 (en) * | 2018-10-31 | 2020-04-30 | Robert Bosch Gmbh | Movement device with positioning system |
| FR3100611B1 (en) * | 2019-09-09 | 2021-09-10 | Safran Landing Systems | Device for measuring an angular position of a movable body relative to a fixed body |
-
1995
- 1995-03-24 JP JP09144095A patent/JP3458916B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08136211A (en) | 1996-05-31 |
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