JP2013140063A - Resolver and stator transformer core - Google Patents

Resolver and stator transformer core Download PDF

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JP2013140063A
JP2013140063A JP2012000081A JP2012000081A JP2013140063A JP 2013140063 A JP2013140063 A JP 2013140063A JP 2012000081 A JP2012000081 A JP 2012000081A JP 2012000081 A JP2012000081 A JP 2012000081A JP 2013140063 A JP2013140063 A JP 2013140063A
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resolver
stator transformer
opening
transformer core
shape
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Maki Takasaka
真好 高坂
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Tamagawa Seiki Co Ltd
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Tamagawa Seiki Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a resolver capable of achieving higher detection accuracy by alleviating deterioration in detection accuracy caused by non-uniformity of component shapes constituting a magnetic circuit of the resolver.SOLUTION: A stator transformer core 1B of a resolver is provided with an opening 5 for adjustment that is a component constituting a magnetic circuit of the resolver and that is formed in a shape capable of reducing disturbance of magnetic flux distribution in a position symmetrically facing an opening 4 for a signal wire provided for pulling out an output signal wire to outside. The opening 5 for adjustment has the same shape as the opening 4 for a signal wire.

Description

本発明はレゾルバおよびそのステータトランス鉄心に係り、特に、レゾルバの磁気回路を構成する部品形状の非一様性による検出精度低下緩和可能なレゾルバおよびその部品に関するものである。   The present invention relates to a resolver and a stator transformer core thereof, and more particularly to a resolver and its components that can alleviate a decrease in detection accuracy due to non-uniformity of the shape of the components constituting a resolver magnetic circuit.

従来のレゾルバにおいては、出力信号線をレゾルバの外部へ引き出すために、レゾルバを構成する磁気回路となる部品の一部に切り欠きや穴を設け、そこから出力信号線を引き出す構造をとる場合がある。   In the conventional resolver, in order to draw out the output signal line to the outside of the resolver, there is a case in which a notch or a hole is provided in a part of a part that becomes a magnetic circuit constituting the resolver and the output signal line is drawn from there. is there.

図6は、そのような従来のレゾルバの外観構成を示す説明図であって、正面図・背面図・平面図を示している。また、図7は図6中のVII−VII線による断面図、図8は図6中のVIII−VIII線による断面図、そして、図9は従来のレゾルバのステータトランス鉄心の構成を示す説明図であって、正面図・平面図・底面図を示している。特に図9に示されるように従来のレゾルバにおいては、コネクタ部69の形状に合わせて、磁気回路構成部品たるステータトランス鉄心61Bには切り欠き64が設けられている。
なお後掲特許文献は、従来のレゾルバに関する技術開示例の一つである。
FIG. 6 is an explanatory view showing the external configuration of such a conventional resolver, and shows a front view, a rear view, and a plan view. 7 is a cross-sectional view taken along line VII-VII in FIG. 6, FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 6, and FIG. 9 is an explanatory view showing the configuration of a stator transformer core of a conventional resolver. However, a front view, a plan view, and a bottom view are shown. In particular, as shown in FIG. 9, in the conventional resolver, a notch 64 is provided in the stator transformer core 61 </ b> B as a magnetic circuit component in accordance with the shape of the connector portion 69.
The following patent document is an example of a technical disclosure related to a conventional resolver.

特開2003−232654号公報「ブラシレスレゾルバ」Japanese Patent Application Laid-Open No. 2003-232654 “Brushless Resolver”

さて図9等に示した従来のレゾルバには、検出精度上の問題があった。それは、磁気回路構成部品たるステータトランス鉄心61Bに設けられた切り欠き64や、あるいは同様の目的で設けられる穴といった形状の非一様な部分から、磁束の乱れが生じることである。かかる磁束の乱れの発生は、レゾルバの検出精度を低下・悪化させる原因となる。   The conventional resolver shown in FIG. 9 and the like has a problem in detection accuracy. That is, magnetic flux disturbance occurs from a non-uniform portion such as a notch 64 provided in the stator transformer iron core 61B as a magnetic circuit component or a hole provided for the same purpose. The occurrence of such turbulence of magnetic flux causes the detection accuracy of the resolver to be lowered or deteriorated.

そこで本発明が解決しようとする課題は、レゾルバの磁気回路を構成する部品形状の非一様性による検出精度低下・悪化を緩和し、より高い検出精度を実現することのできる、レゾルバおよびその部品を提供することである。さらにそれによって、レゾルバ設計の自由度を高めることのできる、レゾルバおよびその部品を提供することである。   Therefore, a problem to be solved by the present invention is a resolver and its components that can alleviate a decrease and deterioration in detection accuracy due to non-uniformity of the shape of the components constituting the resolver magnetic circuit, and realize higher detection accuracy. Is to provide. It is another object of the present invention to provide a resolver and its components that can increase the degree of freedom in designing the resolver.

本願発明者は上記課題について検討した結果、レゾルバにおいて磁気回路を構成する部品の形状に、凹凸や切り欠き等による形状の非一様な部位が存在する場合、対称的な形となるよう対称軸に対して同様の形状を設ける等、補償的な形状を当該部品に設けること、つまり形状におけるオフセットによって課題を解決できることに想到し、本発明に至った。すなわち、上記課題を解決するための手段として本願で特許請求される発明、もしくは少なくとも開示される発明は、以下の通りである。   As a result of studying the above problems, the inventor of the present application has found that when there are non-uniform parts such as irregularities and notches in the shape of the parts constituting the magnetic circuit in the resolver, the symmetry axis is set to be symmetrical. The present inventors have conceived that the problem can be solved by providing a compensatory shape to the part, that is, by providing an offset in the shape, such as providing a similar shape. That is, the invention claimed in the present application, or at least the disclosed invention, as means for solving the above-described problems is as follows.

(1) レゾルバの磁気回路を構成する部品であるステータトランス鉄心において、出力信号線外部引き出し用に設けられた信号線用開口部に対向して、磁束分布乱れを低減できる形状に形成された調整用開口部が設けられている、レゾルバのステータトランス鉄心。
(2) 前記調整用開口部は切り欠き形状であることを特徴とする、(1)に記載のレゾルバのステータトランス鉄心。
(3) 前記調整用開口部は穴形状であることを特徴とする、(2)に記載のレゾルバのステータトランス鉄心。
(4) 前記調整用開口部は前記信号線用開口部と同一形状であることを特徴とする、請求項2または3に記載のレゾルバのステータトランス鉄心。
(5) (1)ないし(4)のいずれかに記載のステータトランス鉄心を備えたレゾルバ。
(1) In a stator transformer core that is a component constituting a magnetic circuit of a resolver, an adjustment formed in a shape capable of reducing magnetic flux distribution disturbance facing a signal line opening provided for output signal line external drawing Resolver stator transformer core provided with an opening for use.
(2) The stator transformer core for a resolver according to (1), wherein the adjustment opening has a notch shape.
(3) The stator transformer core for a resolver according to (2), wherein the adjustment opening has a hole shape.
(4) The stator transformer core of a resolver according to claim 2 or 3, wherein the adjustment opening has the same shape as the signal line opening.
(5) A resolver comprising the stator transformer iron core according to any one of (1) to (4).

本発明のレゾルバおよびそのステータトランス鉄心は上述のように構成されるため、これによれば、レゾルバの磁気回路を構成する部品形状の非一様性による検出精度低下・悪化を有効に緩和し、より高い検出精度をもったレゾルバとすることができる。また、それによって、レゾルバ設計における自由度を高くすることができる。   Since the resolver of the present invention and its stator transformer core are configured as described above, according to this, the detection accuracy lowering and deterioration due to non-uniformity of the component shape constituting the magnetic circuit of the resolver is effectively mitigated, A resolver with higher detection accuracy can be obtained. Thereby, the degree of freedom in the resolver design can be increased.

本発明のレゾルバのステータトランス鉄心の実施例1について構成を示す説明図である。It is explanatory drawing which shows a structure about Example 1 of the stator transformer iron core of the resolver of this invention. 本発明のレゾルバのステータトランス鉄心の実施例2について構成を示す説明図である。It is explanatory drawing which shows a structure about Example 2 of the stator transformer iron core of the resolver of this invention. 本発明のレゾルバのステータトランス鉄心の実施例3について構成を示す説明図である。It is explanatory drawing which shows a structure about Example 3 of the stator transformer iron core of the resolver of this invention. 図1に示す本発明のレゾルバのステータトランス鉄心の斜視図である。It is a perspective view of the stator transformer iron core of the resolver of this invention shown in FIG. 図6に示す従来のレゾルバのステータトランス鉄心の斜視図である。It is a perspective view of the stator transformer iron core of the conventional resolver shown in FIG. 本発明の実施例1を用いたレゾルバにおける検出精度を示すグラフである。It is a graph which shows the detection accuracy in the resolver using Example 1 of this invention. 従来のレゾルバにおける検出精度を示すグラフである。It is a graph which shows the detection accuracy in the conventional resolver. 従来のレゾルバの外観構成を示す説明図である。It is explanatory drawing which shows the external appearance structure of the conventional resolver. 図6中のVII−VII線による断面図である。It is sectional drawing by the VII-VII line in FIG. 図6中のVIII−VIII線による断面図である。It is sectional drawing by the VIII-VIII line in FIG. 従来のレゾルバのステータトランス鉄心の構成を示す説明図である。It is explanatory drawing which shows the structure of the stator transformer core of the conventional resolver.

以下、図面により本発明を詳細に説明する。
図1は、本発明のレゾルバのステータトランス鉄心の実施例1について構成を示す説明図であって、正面図・平面図・底面図を示している。図示するように本発明のレゾルバのステータトランス鉄心1Bは、レゾルバの磁気回路を構成する部品であって、出力信号線外部引き出し用に設けられた信号線用開口部4に対向して、磁束分布乱れを低減できる形状に形成された調整用開口部5が設けられていることを、主たる構成とする。
Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is an explanatory diagram showing the configuration of a first embodiment of a stator transformer core of a resolver according to the present invention, and shows a front view, a plan view, and a bottom view. As shown in the figure, the stator transformer core 1B of the resolver according to the present invention is a component constituting the magnetic circuit of the resolver, and is opposed to the signal line opening 4 provided for the output signal line external drawing, and the magnetic flux distribution. The main configuration is that the adjustment opening 5 formed in a shape capable of reducing the disturbance is provided.

図示するように、調整用開口部5が信号線用開口部4に対向して設けられるその位置は、レゾルバの軸を挟んで対称(正面図では点対称)の位置とする。かかる位置に調整用開口部を設けることによって、磁束分布乱れの低減効果を得られるからである。   As shown in the figure, the position where the adjustment opening 5 is provided opposite to the signal line opening 4 is symmetrical (point symmetry in the front view) with the resolver axis interposed therebetween. This is because by providing the adjustment opening at such a position, the effect of reducing the magnetic flux distribution disturbance can be obtained.

また、調整用開口部は本図の「5」のように、信号線用開口部4の形状と同様に切り欠き形状とすることができるが、本発明はそれに限定されない。磁束分布乱れの低減効果があるものである限り、別な形状でもよく、たとえば適宜のサイズや形態の穴であってもよい。また、本願にいう「開口部」は、切り欠きや穴と把握できる形状を広く包含する。たとえばステータトランス鉄心の基準面に対してそれほどの深さのないような凹部であっても、本願の開口部に含まれる。   Further, the adjustment opening can be formed in a cutout shape like the shape of the signal line opening 4 as indicated by “5” in the figure, but the present invention is not limited thereto. As long as the magnetic flux distribution disturbance can be reduced, another shape may be used, for example, a hole having an appropriate size or shape. In addition, the “opening” referred to in the present application widely includes shapes that can be grasped as notches and holes. For example, even a recess that is not so deep with respect to the reference surface of the stator transformer core is included in the opening of the present application.

本レゾルバのステータトランス鉄心1Bにおいては、信号線用開口部4に対向して設けられたかかる調整用開口部5の存在により、磁気回路構成部品としての形状の非一様性が解消ないしは低減されて、もしこれが存在しなければ発生するであろう磁束分布乱れが、低減される。これによって、レゾルバの検出精度低下・悪化は緩和されるため、レゾルバの検出精度が高くなる。   In the stator transformer core 1B of this resolver, the non-uniformity of the shape as a magnetic circuit component is eliminated or reduced by the presence of the adjustment opening 5 provided facing the signal line opening 4. Thus, magnetic flux distribution disturbances that would otherwise occur would be reduced. As a result, a decrease or deterioration in the detection accuracy of the resolver is alleviated, so that the detection accuracy of the resolver increases.

実施例1として図示するように、調整用開口部5は、信号線用開口部4と同一形状とすることができる。かかる構成とすることで、磁束分布乱れはより高度に低減ないしは解消され、レゾルバ検出精度低下を高度に防止することができる。特に図示するように、両開口部4、5を対称に形成することによって、より良好な効果を得ることができる。   As illustrated in the first embodiment, the adjustment opening 5 can have the same shape as the signal line opening 4. By adopting such a configuration, the magnetic flux distribution disturbance can be reduced or eliminated more highly, and a decrease in resolver detection accuracy can be highly prevented. In particular, as shown in the figure, by forming the openings 4 and 5 symmetrically, a better effect can be obtained.

図2は、本発明のレゾルバのステータトランス鉄心の実施例2について構成を示す説明図であって、正面図・平面図・底面図を示している。図示するようにステータトランス鉄心21Bの調整用開口部25は、信号線用開口部24と同一形状でなくてもよい。つまり、信号線用開口部24と差し渡し距離は同じだが、深さをより浅く形成した切り欠きによる調整用開口部25としてもよい。   FIG. 2 is an explanatory view showing the configuration of a resolver stator transformer core according to a second embodiment of the present invention, and shows a front view, a plan view, and a bottom view. As shown in the figure, the adjustment opening 25 of the stator transformer core 21B may not have the same shape as the signal line opening 24. In other words, the adjustment distance 25 may be formed by a notch formed with a shallower depth, although the distance to be passed is the same as that of the signal line opening 24.

図3は、本発明のレゾルバのステータトランス鉄心の実施例3について構成を示す説明図であって、正面図・平面図・底面図を示している。図示するようにステータトランス鉄心31Bの調整用開口部35は、信号線用開口部34と同一形状でなくてもよい。つまり、信号線用開口部34と深さは同じだが、差し渡し距離をより短く形成した切り欠きによる調整用開口部35としてもよい。   FIG. 3 is an explanatory view showing the configuration of a third embodiment of the stator transformer core of the resolver of the present invention, and shows a front view, a plan view, and a bottom view. As illustrated, the adjustment opening 35 of the stator transformer core 31B may not have the same shape as the signal line opening 34. In other words, the depth may be the same as that of the signal line opening 34, but the adjustment opening 35 may be formed by a notch formed with a shorter passing distance.

以上説明したように、レゾルバにおいて磁気回路を構成する部品であるところのステータトランス鉄心に、切り欠きや穴、あるいはまた凹部(凹凸部)等、形状の非一様な部位が存在する場合、軸を挟んで対称となる位置に同様の形状すなわち調整用開口部を設ければよい。この場合、図2および3で示したように、設ける形状は必ずしも対称的な形状(同一の形状)である必要はない。対称位置に設ける調整用開口部の範囲(差し渡し距離)、深さ、大きさを含む全体形状の調整を行うことによって、磁束分布乱れ低減のための最適化を行うことができる。   As described above, when the stator transformer core, which is a part constituting the magnetic circuit in the resolver, has a non-uniform portion such as a notch, a hole, or a recess (uneven portion), the shaft A similar shape, that is, an opening for adjustment may be provided at a position that is symmetrical with respect to each other. In this case, as shown in FIGS. 2 and 3, the provided shape is not necessarily a symmetrical shape (the same shape). By adjusting the overall shape including the range (passing distance), depth, and size of the opening for adjustment provided at the symmetrical position, optimization for reducing magnetic flux distribution disturbance can be performed.

図4Aは、図1に示す本発明のレゾルバのステータトランス鉄心の斜視図である。また、
図4Bは、図6に示した従来のレゾルバのステータトランス鉄心の斜視図、図5Aは図4Aに示したステータを用いたレゾルバにおける検出精度を示すグラフ、さらに図5Bは図4Bに示した従来のレゾルバにおける検出精度を示すグラフである。いずれのグラフも、軸角度0〜360°範囲におけるレゾルバの検出誤差測定結果を示す。図5Bに示す従来技術では、最大50′程度の誤差が発生しているのに対し、図5Aに示す本発明によるレゾルバでは、偉大30′程度の誤差にとどまっており、検出精度の改善効果が示された。なお、各グラフにおける試験回数は、図5Aが3、図5Bが9である。
FIG. 4A is a perspective view of the stator transformer iron core of the resolver of the present invention shown in FIG. Also,
4B is a perspective view of the stator transformer iron core of the conventional resolver shown in FIG. 6, FIG. 5A is a graph showing the detection accuracy in the resolver using the stator shown in FIG. 4A, and FIG. 5B is the conventional one shown in FIG. 4B. It is a graph which shows the detection accuracy in this resolver. Both graphs show the resolver detection error measurement results in the axial angle range of 0 to 360 °. In the prior art shown in FIG. 5B, an error of about 50 ′ at maximum is generated, whereas in the resolver according to the present invention shown in FIG. 5A, the error is only about 30 ′, which has an effect of improving detection accuracy. Indicated. The number of tests in each graph is 3 in FIG. 5A and 9 in FIG. 5B.

本発明のレゾルバおよびそのステータトランス鉄心によれば、レゾルバの磁気回路を構成する部品形状の非一様性による検出精度低下・悪化を有効に緩和し、より高い検出精度をもったレゾルバとすることができるため、主にセンサ分野およびこれに関連する全ての産業分野において、産業上利用性が高い発明である。   According to the resolver and the stator transformer core of the present invention, a resolver having higher detection accuracy can be effectively mitigated by effectively reducing and deteriorating detection accuracy due to non-uniformity in the shape of the parts constituting the resolver magnetic circuit. Therefore, the present invention is highly industrially applicable mainly in the sensor field and all industrial fields related thereto.

1B、21B、31B…レゾルバのステータトランス鉄心
4、24、34…信号線用開口部
5、25、35…調整用開口部
6S0…ステータ
6S1…ステータ鉄心、 6S2…ステータ巻線
61…ステータトランス
61A…ステータトランス鉄心、 61B…ステータトランス鉄心、 612…ステータトランス巻線
6R0…ロータ
6R2…ロータ巻線、 6R1…ロータ鉄心
62…ロータトランス
62A…ロータトランス鉄心、 622…ロータトランス巻線
63…軸
64…切り欠き
68…ケース
69…コネクタ部
1B, 21B, 31B ... Resolver stator transformer cores 4, 24, 34 ... Signal line openings 5, 25, 35 ... Adjusting openings 6S0 ... Stator 6S1 ... Stator iron core, 6S2 ... Stator winding 61 ... Stator transformer 61A ... stator transformer iron core, 61B ... stator transformer iron core, 612 ... stator transformer winding 6R0 ... rotor 6R2 ... rotor winding, 6R1 ... rotor iron core 62 ... rotor transformer 62A ... rotor transformer iron core, 622 ... rotor transformer winding 63 ... shaft 64 ... Notch 68 ... Case 69 ... Connector

Claims (5)

レゾルバの磁気回路を構成する部品であるステータトランス鉄心において、出力信号線外部引き出し用に設けられた信号線用開口部に対向して、磁束分布乱れを低減できる形状に形成された調整用開口部が設けられている、レゾルバのステータトランス鉄心。 In the stator transformer core, which is a component of the resolver magnetic circuit, an adjustment opening formed in a shape that can reduce the disturbance of magnetic flux distribution, facing the signal line opening provided for the output signal line external lead Resolver stator transformer core. 前記調整用開口部は切り欠き形状であることを特徴とする、請求項1に記載のレゾルバのステータトランス鉄心。 The resolver stator transformer core according to claim 1, wherein the adjustment opening has a notch shape. 前記調整用開口部は穴形状であることを特徴とする、請求項2に記載のレゾルバのステータトランス鉄心。 The resolver stator transformer core according to claim 2, wherein the adjustment opening has a hole shape. 前記調整用開口部は前記信号線用開口部と同一形状であることを特徴とする、請求項2または3に記載のレゾルバのステータトランス鉄心。 The resolver stator transformer core according to claim 2, wherein the adjustment opening has the same shape as the signal line opening. 請求項1ないし4のいずれかに記載のステータトランス鉄心を備えたレゾルバ。



A resolver comprising the stator transformer core according to any one of claims 1 to 4.



JP2012000081A 2012-01-04 2012-01-04 Resolver and stator transformer core Pending JP2013140063A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114293554A (en) * 2021-12-27 2022-04-08 中国港湾工程有限责任公司 Device for steel sheet pile construction
CN116643097A (en) * 2023-02-20 2023-08-25 江苏天利机电有限公司 Performance detection device for transformer core

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JP2009128255A (en) * 2007-11-26 2009-06-11 Tamagawa Seiki Co Ltd Angle detector
JP2010101633A (en) * 2008-10-21 2010-05-06 Minebea Co Ltd Rotation detection device

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Publication number Priority date Publication date Assignee Title
JP2009128255A (en) * 2007-11-26 2009-06-11 Tamagawa Seiki Co Ltd Angle detector
JP2010101633A (en) * 2008-10-21 2010-05-06 Minebea Co Ltd Rotation detection device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114293554A (en) * 2021-12-27 2022-04-08 中国港湾工程有限责任公司 Device for steel sheet pile construction
CN116643097A (en) * 2023-02-20 2023-08-25 江苏天利机电有限公司 Performance detection device for transformer core
CN116643097B (en) * 2023-02-20 2023-12-22 江苏天利机电有限公司 Performance detection device for transformer core

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