JP5044761B2 - Insulated oil filling angle detector - Google Patents
Insulated oil filling angle detector Download PDFInfo
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- JP5044761B2 JP5044761B2 JP2007308061A JP2007308061A JP5044761B2 JP 5044761 B2 JP5044761 B2 JP 5044761B2 JP 2007308061 A JP2007308061 A JP 2007308061A JP 2007308061 A JP2007308061 A JP 2007308061A JP 5044761 B2 JP5044761 B2 JP 5044761B2
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- angle detector
- angle
- resolver
- detection device
- insulating oil
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Description
本発明は角度検出装置に係り、特に、装置に内蔵されるレゾルバ等の角度検出器における腐食、断線を有効に防止することのできる、角度検出装置に関するものである。 The present invention relates to an angle detection device, and more particularly to an angle detection device that can effectively prevent corrosion and disconnection in an angle detector such as a resolver built in the device.
レゾルバ等の角度検出器を内蔵した角度検出装置は、広範な産業分野において利用されている。その主要要素たるレゾルバ等の角度検出器は、たとえば長時間連続使用される環境や、高温多湿の厳しい環境であっても、高い精度の検出機能を維持できることが求められる。 An angle detection device incorporating an angle detector such as a resolver is used in a wide range of industrial fields. An angle detector such as a resolver as its main element is required to be able to maintain a highly accurate detection function even in an environment where it is used continuously for a long time or in a severe environment of high temperature and humidity.
なお、モータ分野においては、密閉型モータにおけるコイルエンドの冷却や（特許文献１）、乾式水中モータにおけるステータコイルの絶縁（特許文献２）のために絶縁オイルを用いる技術は、従来開示されている。 In the motor field, a technique using insulating oil for cooling a coil end in a sealed motor (Patent Document 1) and insulating a stator coil in a dry submersible motor (Patent Document 2) has been conventionally disclosed. .
さて、高温多湿の厳しい環境において角度検出装置を用いる場合、これに内蔵されるレゾルバ等の高度に精密な角度検出器は、その内部コイルが腐食したり、それにより断線したりする故障が発生することがあり、大きな問題であった。 Now, when an angle detector is used in a severe environment of high temperature and humidity, a highly precise angle detector such as a resolver built in the device may cause a failure in which the internal coil is corroded or disconnected. It was a big problem.
図２は、かかる従来の角度検出装置の例を示す断面図である。該装置２１中に内蔵されるレゾルバ２３、特にその巻線部２５は装置２１内部の空気に露出しており、高温多湿環境下などでは腐食しやすい状態である。
FIG. 2 is a cross-sectional view showing an example of such a conventional angle detection device. The
そこで本発明が解決しようとする課題は、内蔵されるレゾルバ等の角度検出器の内部コイルの腐食や断線を有効に防止することのできる角度検出装置を提供することである。 Accordingly, an object of the present invention is to provide an angle detection device that can effectively prevent corrosion and disconnection of an internal coil of an angle detector such as a built-in resolver.
本願発明者は上記課題について検討した結果、レゾルバ等の内蔵される角度検出器を絶縁オイルにより封入することによって上記課題の解決が可能であることを見出し、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 the above problems can be solved by enclosing an angle detector built in a resolver or the like with insulating oil, and has reached the present invention. 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） 歯車等機構部とこれを介した角度検出器とを備えてなる角度検出装置であって、内蔵されている該角度検出器を周囲の空気から遮断するために内部に絶縁オイルが封入されており、該絶縁オイルの封入は、該角度検出器中の内部コイルを周囲の空気から遮断し得るように該内部コイルの位置までなされており、該歯車等機構部にはなされていないことを特徴とする、角度検出装置。
（２） 前記角度検出器がレゾルバであることを特徴とする、（１）に記載の角度検出装置。
（３） 前記レゾルバが１相励磁／２相出力、２相励磁／１相出力、または２相励磁／２相出力のいずれかの信号形式であることを特徴とする、（２）に記載の角度検出器。
（４） 前記角度検出器がシンクロであることを特徴とする、（１）に記載の角度検出装置。
(1) an angle detector comprising a gear or the like mechanism and the angle detector through which internal insulating oil is sealed in order to block the angle detector which is built from the ambient air The insulating oil is sealed up to the position of the internal coil so that the internal coil in the angle detector can be shielded from the surrounding air, and not to the gear or the like. An angle detection device characterized by the above.
(2), wherein the angle detector is a resolver, the angle detection apparatus according to (1).
(3), wherein the resolver is one-phase excitation / two-phase output, 2-phase excitation / one-phase output, or any signal format of the two-phase excitation / two-phase output, according to (2) Angle detector.
( 4 ) The angle detector according to (1), wherein the angle detector is synchronized.
本発明の角度検出装置はかかる構成であるため、内蔵されるレゾルバ等の角度検出器の内部コイルの腐食や断線を有効に防止することができ、ひいてはこれらを原因とする故障の発生を防止することができる。 Since the angle detection device of the present invention has such a configuration, it is possible to effectively prevent corrosion and disconnection of an internal coil of an angle detector such as a built-in resolver, thereby preventing the occurrence of a failure due to these. be able to.
以下、本発明を図面により詳細に説明する。
図１は、本発明角度検出装置の構成例を示す断面図である。図示するように本装置１は、内蔵されている角度検出器３を、周囲の装置１内部の空気から遮断するために、装置１内部に絶縁オイル８が封入されていることを、主たる構成とする。図では、角度検出器３は２台設けられている例を示している。
The present invention will be described in detail below with reference to the drawings.
FIG. 1 is a cross-sectional view showing a configuration example of an angle detection device of the present invention. As shown in the figure, the main configuration of the device 1 is that an insulating oil 8 is sealed inside the device 1 in order to shut off the built-in angle detector 3 from the air inside the surrounding device 1. To do. In the figure, an example in which two angle detectors 3 are provided is shown.
特に絶縁オイル８の封入は、少なくとも角度検出器３中の内部コイル５（巻線部）を、周囲の空気から遮断し得るようになされることが重要である。しかしながら図示するように、内部コイル５のみならず角度検出器３全体が絶縁オイル８によって封止されるような処理でも、全く支障はない。 In particular, it is important that the insulating oil 8 is sealed so that at least the internal coil 5 (winding portion) in the angle detector 3 can be shielded from ambient air. However, as shown in the drawing, not only the internal coil 5 but also the entire angle detector 3 is sealed with the insulating oil 8 without any problem.
かかる構成により、本角度検出装置１の置かれた環境がたとえば高温多湿条件といった腐食のおきやすい環境であって、外部の高温多湿の空気が装置１内部に侵入してくるような状況であっても、封入された絶縁オイル８によって角度検出器３、特にその内部コイル５は当該空気とは遮断される。したがって当該空気による腐食の発生も、またそれによる断線その他の不具合も、有効に防止される。 With this configuration, the environment in which the present angle detection device 1 is placed is an environment where corrosion is likely to occur, for example, high temperature and high humidity conditions, and external high temperature and high humidity air enters the inside of the device 1. In addition, the angle detector 3, particularly the internal coil 5, is blocked from the air by the enclosed insulating oil 8. Therefore, the occurrence of corrosion due to the air, and the disconnection and other problems caused thereby can be effectively prevented.
本発明に係る角度検出器３としては、レゾルバもシンクロも該当する。またレゾルバの場合は、１相励磁／２相出力、２相励磁／１相出力、または２相励磁／２相出力、いずれの信号形式のものも該当することはいうまでもない。 The angle detector 3 according to the present invention corresponds to a resolver and a synchro. In the case of a resolver, it is needless to say that any one of signal formats of 1-phase excitation / 2-phase output, 2-phase excitation / 1-phase output, or 2-phase excitation / 2-phase output is applicable.
本発明の角度検出装置によれば、内蔵されるレゾルバ等の角度検出器の内部コイルの腐食や断線など、またそれによる故障の発生を有効に防止することができる。したがって、関連産業分野において利用価値が高い発明である。 According to the angle detection device of the present invention, it is possible to effectively prevent the corrosion and disconnection of the internal coil of an angle detector such as a built-in resolver, and the occurrence of a failure due thereto. Therefore, the invention has high utility value in the related industrial field.
１、２１…角度検出装置
３、２３…角度検出器（レゾルバ等）
５、２５…巻線部
８…絶縁オイル
1, 21 ...
5, 25 ... Winding part 8 ... Insulating oil
Claims (4)
The angle detection device according to claim 1, wherein the angle detector is a synchro.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007308061A JP5044761B2 (en) | 2007-11-28 | 2007-11-28 | Insulated oil filling angle detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007308061A JP5044761B2 (en) | 2007-11-28 | 2007-11-28 | Insulated oil filling angle detector |
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| Publication Number | Publication Date |
|---|---|
| JP2009133648A JP2009133648A (en) | 2009-06-18 |
| JP5044761B2 true JP5044761B2 (en) | 2012-10-10 |
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| JP2007308061A Active JP5044761B2 (en) | 2007-11-28 | 2007-11-28 | Insulated oil filling angle detector |
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| JP6227315B2 (en) | 2013-07-29 | 2017-11-08 | ミネベアミツミ株式会社 | VR-type resolver stator structure |
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| JPH11304538A (en) * | 1998-04-17 | 1999-11-05 | Samutaku Kk | Rotation detector for hydraulic apparatus |
| JP2006214871A (en) * | 2005-02-03 | 2006-08-17 | Mitsumi Electric Co Ltd | Detector |
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