JPH113828A - Non-contact transmitter for rotary power and signal - Google Patents

Non-contact transmitter for rotary power and signal

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Publication number
JPH113828A
JPH113828A JP15529197A JP15529197A JPH113828A JP H113828 A JPH113828 A JP H113828A JP 15529197 A JP15529197 A JP 15529197A JP 15529197 A JP15529197 A JP 15529197A JP H113828 A JPH113828 A JP H113828A
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signal
power
coil
gap
transmission
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JP15529197A
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Japanese (ja)
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Toshihiro Ishibashi
Hiroyuki Kamata
稔宏 石橋
博行 鎌田
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Yaskawa Electric Corp
株式会社安川電機
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Abstract

PROBLEM TO BE SOLVED: To stabilize the signal transmitting efficiency of a non-contacting rotary transmitter for power and signal by arranging the gap between the facing surfaces of a core for transmitting power in a parallel plane which is shifted from the gap between the facing surfaces of a core for transmitting signal in the axial direction. SOLUTION: When electric power is supplied to a primary-side power transmission coil 6 and an electric signal is supplied to a primary-side signal transmission coil 12 for transmitting signal, magnetic fluxes are generated from the coils 6 and 12. The magnetic fluxes respectively induce voltages in a secondary- side power transmission coil 26 and a secondary-side signal transmission coil 32, and power transmission and electric signal transmission are performed in non-contacting states. Part of the magnetic flux generated from the coil 6 leaks toward the center of the coil 6, namely, toward a signal section through a gap G. However, since a difference H is formed between a power section and the signal section, the magnetic flux leaking toward the signal section is intercepted at the difference H and does not reach the gap (g) of the signal section. Consequently, the magnetic flux generated from the coil 12 is received by the coil 32 without being affected by noise.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、電力と電気信号とを1次側トランスから2次側トランスへ無接触で伝送する回転型電力・信号用無接触式伝送装置に関し、特に電力伝送によって発生する漏洩磁束の電気信号への影響を低減するためのものに関する。 The present invention relates to relates to a rotary power and signal contact-free transmission apparatus for transmitting power and electrical signals contactlessly from the primary side transformer to the secondary side transformer, in particular generated by the power transmission regarding intended to reduce the influence of the electric signal of the leakage magnetic flux.

【0002】 [0002]

【従来の技術】従来のこの種の回転型電力・信号用無接触式伝送装置としては、空隙を介し対向させた1対の偏平円筒形状のトランス内に電力伝送用コアと信号伝送用コアとを同心状に装着した回転トランスがあった。 BACKGROUND ART As this type of conventional rotary power and signal contactless transmission device, a power transmission core and the signal transmission core in the transformer of the flat cylindrical pair are opposed through the gap the was a rotary transformer mounted concentrically. ところが、このような従来の回転型電力・信号用無接触式伝送装置は、電力伝送用コアと信号伝送用コアを共有するため、電力伝送用コイルから漏れる漏洩磁束が信号伝送用コイルと鎖交するのでノイズの原因となり、誤信号を伝送するという問題があった。 However, such conventional non-contact transmission device for rotary power and signals, in order to share the power transmission core and the signal transmission core, the leakage magnetic flux leaking from the power transmission coil and a signal transmitting coil interlinkage cause noise because, there is a problem that transmits a false signal.

【0003】この問題を解決するため、本出願人は改良された回転型電力・信号用無接触式伝送装置を先に提案している。 [0003] To solve this problem, the present applicant has proposed a contact-free transmission apparatus for rotary power and signals to an improved earlier. それは、リング状の溝内に電力伝送用コイルを収納した電力伝送用コアと、他のリング状の溝内に信号伝送用コイルを収納した信号伝送用コアとを同心状に配置した偏平円筒形状のトランス1対を空隙を介して対向配置させた回転型電力・信号用無接触式伝送装置において、電力伝送用コアと信号伝送用コアとを磁気的に分離するため、非磁性体のフレーム内に電力伝送用コアと信号伝送用コアとを収納させるようにしたものである。 It flat cylindrical shape arranged a power transmission core accommodating the power transmission coil in a ring-shaped groove, and a signal transmission core accommodating the signal transmission coils other ring-shaped groove concentrically in contact-free transmission apparatus for rotary power and a signal obtained by oppositely arranged with a gap transformer pair of, for magnetically separating the power transmission core and the signal transmission core, the frame of the non-magnetic material it is obtained so as to accommodating the power transmission core and the signal transmission core.

【0004】図3はその先行発明を示している。 [0004] Figure 3 shows the prior invention. 図において、1次側トランスT11と2次側トランスT12とを空隙Gを介して対向配置し、1次側トランスT11から2次側トランスT12に無接触で電力や電気信号を伝送するようにしている。 In the figure, as the primary-side transformer T11 and the secondary transformer T12 and oppositely arranged with a gap G, for transferring power and electrical signals contactlessly from the primary side transformer T11 to the secondary transformer T12 there. 1次側トランスT11は、アルミニュウム等の非磁性体を円筒状に形成したフレーム5 Primary transformer T11 includes a frame 5 forming a non-magnetic material such as aluminum in a cylindrical shape
2と、このフレーム52に形成したリング状の溝部53 2, the groove and a ring-shaped formed on the frame 52 53
内に嵌合したリング状の1次側電力伝送用コア54と、 A ring-shaped primary side power transmission core 54 fitted within,
この1次側電力伝送用コア54に形成したリング状の溝部55内に収納した1次側電力伝送用コイル56と、フレーム52の中心部に形成した円状凹部57内に嵌合した1次側信号伝送用コア58と、この1次側信号伝送用コア58に形成したリング状の溝部61内に収納した1 A primary electric power transmission coil 56 housed in a ring-shaped groove 55 formed in the primary-side power transmission core 54, primary fitted in the circular recess 57 formed in the center portion of the frame 52 the side signal transmission core 58, and stored in a ring-shaped groove 61 formed on the primary side signal transmission core 58 1
次側信号伝送用コイル62とを備えている。 And a next-side signal transmission coil 62.

【0005】2次側トランスT12は、アルミニュウム等の非磁性体を円筒状に形成したフレーム71と、このフレーム71に形成したリング状の溝部73内に嵌合したリング状の2次側電力伝送用コア74と、この2次側電力伝送用コア74に形成したリング状の溝部75内に収納した2次側電力伝送用コイル76と、フレーム71 [0005] secondary transformer T12, a frame 71 forming the non-magnetic material such as aluminum in a cylindrical shape, a ring-shaped secondary side power transmission fitted to the formed ring-shaped groove 73 in the frame 71 and use core 74, and the secondary electric power transmission coil 76 housed in the secondary-side power transmission core 74 to form the ring-shaped groove 75, the frame 71
の中心部に形成した円状凹部77内に嵌合した2次側信号伝送用コア78と、この2次側信号伝送用コア78に形成したリング状の溝部81内に収納した2次側信号伝送用コイル82とを備えている。 Central and secondary signal transmission core 78 fitted into the circular recess 77 formed in the unit, the secondary-side signal accommodated in the secondary signal transmission core 78 to form the ring-shaped groove 81 of the and a transmission coil 82.

【0006】そこで、いま1次側電力伝送用コイル56 [0006] Therefore, now the primary side power transmission coil 56
に電力を供給し、また1次側信号伝送用コイル62に電気信号を通電すると、コイル56及びコイル62から磁束が発生し、この磁束によって2次側電力伝送用コイル76に電圧が誘起され、また2次側信号伝送コイル82 When providing power, also energizes the electrical signal to the primary side signal transmission coil 62, magnetic flux is generated from the coil 56 and coil 62, a voltage is induced by the magnetic flux to the secondary side power transmission coil 76, The secondary signal transfer coil 82
に電圧が誘起されて、電力及び電気信号の伝送が無接触で行われる。 Voltage is induced, the transmission of power and electrical signals are contactlessly to.

【0007】 [0007]

【発明が解決しようとする課題】ところが、このような先行従来技術によると次のような問題点があった。 However, [0007], there is a problem such as the following, according to such prior art. すなわち、1次側電力伝送用コイル56から発生した磁束についてみると、一部が空隙Gを透過して中心方向に漏洩し、2次側信号伝送コイル82から発生した磁束にノイズとして重畳し、電気信号の伝送効率を悪化させるという問題である。 That is, looking at the magnetic flux generated from the primary side power transmission coil 56, partially leaked to the center direction passes through the gap G, and superposed as noise on the magnetic flux generated from the secondary signal transmission coil 82, is a problem of deteriorating the transmission efficiency of the electric signal. しかも、この漏洩磁束は電力伝送量の増加に対応して伝送した電気信号のS/N比を悪化させる傾向がある。 Moreover, the leakage magnetic flux tends to deteriorate the S / N ratio of the electrical signal transmitted in response to an increase in power transmission amount. 本発明は、前記課題を解消するものであり、電力伝送の大小に関わりなく電気信号伝送用コイルに重畳するノイズを減少させ、信号伝送効率が安定するように構成した回転型電力・信号用無接触式伝送装置を提供することを目的とする。 The present invention is to solve the above problems, to reduce the noise superimposed on the electrical signal transmission coil regardless of the size of the power transmission, the signal transmission efficiency Mu for rotary power and signals configured to be stable and to provide a contact-type transmission apparatus.

【0008】 [0008]

【課題を解決するための手段】かかる課題を解決するため、本発明によると、リング状の溝内に電力伝送用コイルを収納した電力伝送用コアと、他のリング状の溝内に信号伝送用コイルを収納した信号伝送用コアとを同心状に非磁性体のフレーム内に配置した偏平円筒形状のトランス1対を空隙を介して対向配置させた回転型電力・信号用無接触式伝送装置において、前記電力伝送用コアの対向面の空隙を、前記信号伝送用コアの対向面の空隙よりも軸方向にずれた平行な面に配置することを特徴とするものである。 To solve SUMMARY OF THE INVENTION The above problem, according to the present invention, a power transmission core accommodating the power transmission coil in a ring-shaped groove, the signal transmitted to the other ring-shaped groove rotary power and signal contact-free transmission apparatus transformer pair of flat cylindrical shape arranged with signal transmission core accommodating the use coils in the frame of concentrically nonmagnetic is opposed via a gap in the gap facing surface of the power transmission core, it is characterized in that arranged in parallel planes offset in the axial direction than the air gap of the opposed surface of the signal transmission core. すなわち、図1において、前記1次側電力用コイル6と前記2次側電力用コイル26との対向面の空隙Gと、前記1次側信号用コイル12と前記2次側信号用コイル32との対向面の空隙gとに差Hを設けている。 That is, in FIG. 1, the primary power coil 6 and the gap G of the opposing surfaces of the secondary power coil 26, and the primary signal coil 12 and the secondary signal coil 32 It is provided a difference H of the and the gap g of the opposing surfaces.

【0009】前記構成によれば、1次側電力用コイル6 [0009] According to the above construction, the coil primary electric power 6
と前記2次側電力用コイル26との対向面の空隙Gと、 And the gap G of the opposing surfaces of the secondary power coil 26 and,
前記1次側信号用コイル12と前記2次側信号用コイル32との対向面の空隙gとは、同一水平面で連続せず、 The 1 The gap g of the opposing surfaces of the primary signal coil 12 and the secondary signal coil 32, not continuous in the same horizontal plane,
空隙G、gの間に差Hが形成されるので、電力伝送に伴って空隙Gに発生した漏洩磁束は差Hによって遮蔽されて空隙gに漏洩せず、電気信号に対応して発生した磁束にノイズとして重畳しなくなる。 Gap G, the difference H between the g is formed, the leakage magnetic flux generated in the gap G with the power transmission does not leak is shielded by the difference H in the gap g, the magnetic flux generated in response to an electrical signal not superimposed as noise.

【0010】また、請求項2記載の発明によると、リング状の溝内に電力伝送用コイルを収納した電力伝送用コアと、他のリング状の溝内に信号伝送用コイルを収納した信号伝送用コアとを同心状に非磁性体のフレーム内に配置した偏平円筒形状のトランス1対を空隙を介して対向配置させた回転型電力・信号用無接触式伝送装置において、前記電力伝送用コアと前記信号伝送用コアとの間の非磁性体のフレームのその対向面と作る空隙を、前記電力伝送用コアの対向面の空隙よりも軸方向にずれた平行な面に配置することを特徴とするものである。 [0010] According to the second aspect of the invention, signal transmission which houses a power transmission core accommodating the power transmission coil, the signal transmitting coil to the other ring-shaped groove in a ring-shaped groove in contact-free transmission apparatus for rotary power and a signal obtained by oppositely arranged with a gap transformer pair of flat cylindrical shape disposed within the frame of a non-magnetic material and use core concentrically, said power transmission core characterized in that the voids create its opposing surface of the frame of nonmagnetic material between the signal transmission core disposed in parallel planes offset in the axial direction than the air gap of the opposed surface of the power transmission core it is an. すなわち、図2において、前記1次側電力用コイル6と前記2 That is, in FIG. 2, and the primary-side power coil 6 wherein 2
次側電力用コイル26との対向面の空隙Gと、前記1次側信号用コイル12と前記2次側信号用コイル32との対向面の空隙gとの間に隔壁2bを設けている。 And the gap G of the surface facing the next side power coil 26 is provided with a partition wall 2b between the gap g of the opposing surfaces of the primary signal coil 12 and the secondary signal coil 32.

【0011】このような空隙Gと空隙gとの間に隔壁2 [0011] A partition wall 2 between such gap G and the gap g
bを形成した構成では、前記1次側信号用コイル12と前記2次側信号用コイル32とが隔壁2bにより囲まれるので遮蔽され、前記同様に漏洩磁束を遮断してノイズ重畳を減衰させることができる。 In the configuration of forming the b, that said primary signal coils 12 and the secondary signal coil 32 is blocked so surrounded by the partition walls 2b, the same way to block leakage magnetic flux attenuates the noise superimposed can.

【0012】 [0012]

【発明の実施の形態】以下、本発明を適用した回転型電力・信号用無接触式伝送装置(以下、「伝送装置」と略称する。)に関する第1の実施形態を詳細に説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a rotary power and signal contact-free transmission apparatus according to the present invention (hereinafter, abbreviated as "transmission unit".) The first embodiment relates will be described in detail.
なお、図1は伝送装置の構成を示す断面図である。 FIG. 1 is a sectional view showing a configuration of a transmission device.

【0013】伝送装置1は、図1の下部の1次側トランスT1から空隙Gを介して上部の2次側トランスT2 [0013] transmitting device 1, the secondary side of the upper through the gap G from the bottom of the primary side transformer T1 in FIG. 1 transformer T2
に、電力及び電気信号を無接触でかつ同時に伝送するものであり、全体の形状は円筒状に形成されている。 In, which transmits power and electrical signals and non-contact at the same time, the overall shape is formed in a cylindrical shape. 1次側トランスT1は、アルミニュウム等の非磁性体で形成したフレーム2と、このフレーム2に形成したリング状の溝部3内に嵌合したリング状の1次側電力伝送用コア4と、この1次側電力伝送用コア4に形成したリング状の溝部5内に収納した1次側電力伝送用コイル6と、フレーム2の中心部に形成した円状凹部7内に嵌合した1 Primary transformer T1 includes a frame 2 formed of a non-magnetic material such as aluminum, a ring-shaped primary side power transmission core 4 fitted to a ring-shaped groove 3 formed in the frame 2, the a primary electric power transmission coil 6 housed in the primary-side power transmission core 4 to form the ring-shaped groove 5, is fitted in the circular recess 7 formed in the center portion of the frame 2 1
次側信号伝送用コア8と、この1次側信号伝送用コア8 The following side signal transmission core 8, the primary side signal transmission core 8
に形成したリング状の溝部11内に収納した1次側信号伝送用コイル12とを備えている。 And a primary-side signal transmission coil 12 housed in the formed ring-shaped groove 11 in.

【0014】2次側トランスT2は、アルミニュウム等の非磁性体で形成したフレーム21と、このフレーム2 [0014] the secondary transformer T2, a frame 21 formed of a non-magnetic material such as aluminum, the frame 2
1に形成したリング状の溝部23内に嵌合したリング状の2次側電力伝送用コア24と、この2次側電力伝送用コア24に形成したリング状の溝部25内に収納した2 A ring-shaped secondary side power transmission core 24 fitted to the formed ring-shaped groove 23 to 1, and stored in the secondary-side power transmission core 24 to form the ring-shaped groove 25 2
次側電力伝送用コイル26と、フレーム21の中心部に形成した円状凹部27内に嵌合した2次側信号伝送用コア28と、この2次側信号伝送用コア28に形成したリング状の溝部31内に収納した2次側信号伝送用コイル32とを備えている。 Next-side power transmission coil 26, a secondary-side signal transmission core 28 fitted into the circular recess 27 formed in the center portion of the frame 21, a ring-shaped formed on the secondary side signal transmission core 28 and a secondary-side signal transmission coil 32 housed in the groove 31 of the.

【0015】ところで、前記フレーム2の中央部には凸状部2aが形成され、前記フレーム21の中央部は凹状部21aに形成されて、凸状部2aが凹状部21a内に嵌合した構成になっている。 By the way, in the central portion of the frame 2 is formed convex portion 2a, constituted central portion of the frame 21 is formed in a concave portion 21a, the convex portion 2a is fitted into the concave portion 21a It has become. 従って、1次及び2次の電力伝送用コア4、24と1次及び2次の電力伝送用コイル6、26が対面している電力伝送部と、1次及び2次の信号伝送用コア8、28と1次及び2次の信号伝送用コイル12、32が対面している信号伝送部との間には差Hが形成されていることになり、空隙G、gの位置が互いに軸方向にずれた平行な面に配置されている。 Therefore, a power transmission unit for the primary and secondary power transmission core 4 and 24 and the primary and secondary of the power transmission coil 6, 26 are facing, the primary and secondary signal transmission core 8 , 28 the primary and will be the difference H is formed between the signal transmitting unit which secondary signal transmission coils 12, 32 are facing, the air gap G, the axial position of g each other are arranged in parallel planes offset to.

【0016】次に、前記伝送装置1の動作を説明する。 [0016] Next, the operation of the transmission device 1.
1次側電力伝送用コイル6に電力を供給し、1次側信号伝送用コイル12に電気信号を通電すると、コイル6及びコイル12から磁束が発生する。 Supplying power to the primary side power transmission coil 6, when energized electrical signal to the primary side signal transmission coil 12, magnetic flux generated from the coil 6 and the coil 12. この磁束によって、 By the magnetic flux,
2次側電力伝送用コイル26に電圧が誘起され、2次側信号伝送コイル32に電圧が誘起されて、電力及び電気信号の伝送が無接触で行われる。 Voltage is induced in the secondary electric power transmission coil 26, the voltage on the secondary side signal transmission coil 32 is induced, the transmission of power and electrical signals are contactlessly. ここで、1次側電力伝送用コイル6から発生した磁束についてみると、一部が空隙Gを透過して中心方向に、すなわち信号部方向に漏洩する。 Here, looking at the magnetic flux generated from the primary side power transmission coil 6, partially in the central direction passes through the gap G, i.e. leaks in the signal section direction. しかし、本実施形態では、電力部と信号部との間に差Hが形成されているので、信号部方向に漏洩した磁束は、差Hにおいて遮断され信号部の空隙gに到達しない。 However, in the present embodiment, the difference H between the power unit and the signal unit is formed, magnetic flux leaks to the signal unit direction does not reach the gap g of the signal unit is blocked in the difference H. このため信号部は電力部の漏洩磁束に対し言わば磁気シールドされたようになり、1次側信号伝送用コイル12から発生した磁束に漏洩磁束がノイズとして重畳しない。 Thus the signal unit, so to speak become magnetically shielded against leakage flux of the power unit, the leakage magnetic flux in the magnetic flux generated from the primary-side signal transmission coil 12 do not overlap as noise. この結果、コイル12から発生した磁束はノイズに影響を受けることなく2次側信号伝送コイル32に受信され、正確な信号伝送が行われることになる。 As a result, magnetic flux generated from the coil 12 is received on the secondary side signal transfer coil 32 without being influenced by the noise, so that the accurate signal transmission is performed.

【0017】なお、前記構成では1次側トランスT1に凸状部2aが形成され、2次側トランスT2に凹状部2 [0017] Incidentally, the configuration convex portion 2a is formed on the primary side transformer T1, the concave portion 2 in the secondary transformer T2
1aが形成されているが、この構成に限定されるものではない。 1a is formed, but is not limited to this configuration. すなわち、電力部から空隙Gを介して漏洩する磁束を遮蔽するのであるから、前記構成とは逆に、1次側トランスT1に凹状部を形成し、2外側トランスT2 That is, since it is to shield the magnetic flux leaking through the gap G from the power unit, contrary to the above structure, forming a concave portion on the primary side transformer T1, 2 outer transformer T2
に凸状部を形成してもよい。 It may form a convex portion.

【0018】次に、図2を参照して本発明の第2の実施形態を説明する。 Next, with reference to FIG. 2 illustrating a second embodiment of the present invention. なお、本実施形態と前記第1実施形態との相違点は、フレームの中央部に形成した凸状部及び凹状部の構成を変更したことにある。 Incidentally, differences from the first embodiment and this embodiment is that changing the configuration of the convex portion and a concave portion formed in a central portion of the frame. 従って、凸状部及び凹状部以外の各部材については、前記第1実施形態で付した符号を援用する。 Thus, for each member other than the convex portion and the concave portion, which is incorporated by reference symbols including in the first embodiment. 本実施形態では図2に示すように電力部の空隙Gと信号部の空隙gとが水平に連続した平面になっていない。 And a gap g of the gap G and the signal of the power unit as shown in FIG. 2 not in the horizontal continuous plane in the present embodiment. すなわち、1次側信号伝送用コイル12がフレーム2内に深く埋設され、しかも空隙gの外側が隔壁2bに形成されている。 That is, the primary side signal transmission coil 12 is deeply embedded in the frame 2, moreover the outer gap g is formed in the partition wall 2b. そして2次側信号伝送用コイル32は、2次側トランスT2を構成するフレーム21から下方に突出しているものの、前記隔壁2b The secondary signal transmission coil 32, although the frame 21 constituting the secondary transformer T2 projects downward, said partition wall 2b
内に嵌合した形態になっている。 It has become fitted form within.

【0019】この構成では、信号部の周囲が隔壁2bによって囲まれている。 [0019] In this configuration, the periphery of the signal portion is surrounded by a partition wall 2b. 前記同様に1次側電力伝送用コイル6に電力を供給し、1次側信号伝送用コイル12に電気信号を通電すると、コイル6及びコイル12から磁束が発生する。 The similarly supplies power to the primary side power transmission coil 6, when energized electrical signal to the primary side signal transmission coil 12, magnetic flux generated from the coil 6 and the coil 12. この磁束によって、2次側電力伝送用コイル26に電圧が誘起され、2次側信号伝送コイル32に信号電圧が誘起されて、電力及び電気信号の伝送が無接触で行われる。 This magnetic flux, voltage on the secondary side power transmission coil 26 is induced, the signal voltage on the secondary side signal transmission coil 32 is induced, the transmission of power and electrical signals are contactlessly.

【0020】ここで1次側電力伝送用コイル6から発生した磁束についてみると、一部が空隙Gを透過して中心方向に(すなわち信号部方向に)漏洩する。 [0020] With regard to the magnetic flux generated from wherein primary electric power transmission coil 6, part (i.e. in the signal section direction) toward the center passes through the gap G to leak. しかし、信号部が凸状部2bに囲まれているので、信号部方向に漏洩した磁束は、凸状部2bにおいて遮断され信号部の空隙gに到達しない。 However, since the signal portion is surrounded by the convex portion 2b, the magnetic flux leaked to the signal unit direction does not reach the gap g of the blocked signal portion in the convex portion 2b. すなわち信号部は、電力部の漏洩磁束に対し前記同様に磁気シールドされ、1次側信号伝送用コイル12から発生した磁束に漏洩磁束が重畳せず、 That signal portion is the same as the magnetically shielded against leakage flux of the power unit, does not overlap the leakage magnetic flux in the magnetic flux generated from the primary-side signal transmission coil 12,
前記同様にS/N比が改善される。 The is similarly improved S / N ratio. この結果、コイル1 As a result, the coil 1
2から発生した磁束はノイズに影響を受けることなく2 The magnetic flux generated from the 2 2 without being affected by the noise
次側信号伝送コイル32に受信され、正確な信号伝送が行われることになる。 It received the following side signal transmission coil 32, so that the accurate signal transmission is performed.

【0021】なお、前記構成では1次側トランスT1に隔壁2bが形成されているが、この構成に限定されるものではない。 [0021] Incidentally, the barrier ribs 2b to the primary-side transformer T1 in the configuration are formed, it is not limited to this configuration. すなわち、電力部から空隙Gを介して漏洩する磁束を遮蔽するのであるから、前記構成とは逆に、 That is, since it is to shield the magnetic flux leaking through the gap G from the power unit, contrary to the above structure,
2次外側トランスT2に差を形成してもよい。 It may form a difference between the 2 next outer transformer T2.

【0022】 [0022]

【発明の効果】以上に説明したように、本発明に係る回転型電力・信号用無接触式伝送装置は、電力伝送用コアの対向面の空隙と信号伝送用コアの対向面の空隙とが互いに軸方向にずれた平行な面に配置されているので、電力伝送に伴って発生した漏洩磁束は差によって遮蔽されて信号用コイル間に漏洩せず、電気信号に対応して発生した磁束にノイズとして重畳しない。 As described above, according to the present invention, contactless transmission system for rotary power and signals according to the present invention, and the gap facing surfaces of the air gap and the signal transmission core of the opposing surfaces of the power transmission core because it is arranged in parallel planes axially offset from one another, the leakage magnetic flux generated in accordance with the power transmission does not leak between being shielded signal coils due to the difference, the magnetic flux generated in response to an electrical signal do not overlap as noise. 従って、信号伝送効率の悪化を防止することができ、電力伝送量を増加させることもできる。 Therefore, it is possible to prevent the deterioration of signal transmission efficiency, it is also possible to increase the power transmission amount.

【0023】また、電力伝送用コアと信号伝送用コアとの間の非磁性体のフレームのその対向面と作る空隙面を、電力伝送用コアの対向面の空隙よりも軸方向にずれた平行な面に配置するので、前記同様に漏洩磁束を遮断してノイズ重畳を減衰させることができる。 Further, parallel to the gap plane makes with the opposing surface of the frame of nonmagnetic material, displaced in the axial direction than the air gap of the opposed surface of the power transmission core between the power transmission core and the signal transmission core because disposed a surface, it is possible to attenuate the noise superimposed by blocking leakage magnetic flux in the same manner as described above. 1次側信号用コイルと2次側信号用コイルとの磁気シールドは、特別のシールド部材を用いることなく、フレームに形成する段差構造により行われるので、構成が簡単でありながら確実なノイズ対策が行われるうえに、低コスト生産を図ることができる。 Magnetic shield between the primary signal coil and the secondary-side signal coils, without using a special shield member, since carried out by the step structure formed in the frame, a reliable noise suppression, yet simple construction on top is carried out, it is possible to achieve a low-cost production.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明を適用した回転型無接触式電力及び電気信号伝送装置の第1の実施形態を示す横断面図である。 1 is a cross-sectional view showing a first embodiment of the applied rotational-type non-contact power and electrical signal transmission device of the present invention.

【図2】本発明を適用した回転型無接触式電力及び電気信号伝送装置の第2の実施形態を示す横断面図である。 It is a cross-sectional view showing a second embodiment of Figure 2 rotated-type non-contact power and electrical signal transmission device embodying the present invention.

【図3】従来の回転型無接触式電力及び電気信号伝送装置の一例を示す横断面図である。 3 is a transverse sectional view showing an example of a conventional rotary type non-contact power and electrical signal transmission device.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 回転型無接触式電力及び電気信号伝送装置 2,21 フレーム 2a 凸状部 2b 差 3,23 溝部 4 1次側電力用コア 6 1次側電力用コイル 8 1次側信号用コア 12 1次側信号用コイル 21a 凹状部 24 2次側電力用コア 26 2次側電力用コイル 28 2次側信号用コア 32 2次側信号用コイル T1 1次側トランス T2 2次側トランス G、g 空隙 H 差 1 rotary-type non-contact power and electrical signal transmission apparatus 2, 21 frame 2a convex portion 2b difference 3 and 23 grooves 4 primary power core 6 primary power coil 8 primary signal core 12 primary side signal coils 21a concave portion 24 secondary electric power core 26 for a secondary-side power coil 28 secondary signal core 32 secondary signal coil T1 1 primary transformer T2 secondary side transformer G, g gap H difference

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 リング状の溝内に電力伝送用コイルを収納した電力伝送用コアと、他のリング状の溝内に信号伝送用コイルを収納した信号伝送用コアとを同心状に非磁性体のフレーム内に配置した偏平円筒形状のトランス1 Nonmagnetic and 1. A ring-shaped power transmission core accommodating the power transmission coil in the groove, and a signal transmission core accommodating the signal transmission coils other ring-shaped groove concentrically a flat cylindrical shape which is placed within the body of the frame transformer 1
    対を空隙を介して対向配置させた回転型電力・信号用無接触式伝送装置において、 前記電力伝送用コアの対向面の空隙を、前記信号伝送用コアの対向面の空隙よりも軸方向にずれた平行な面に配置することを特徴とする回転型電力・信号用無接触式伝送装置。 In contact-free transmission apparatus for rotary power and a signal obtained by oppositely arranged with a gap pairs, the gap facing surface of the power transmission core, in the axial direction than the air gap of the opposed surface of the signal transmission core contactless transmission system for rotary power and signal, characterized in that arranged in parallel planes offset.
  2. 【請求項2】 リング状の溝内に電力伝送用コイルを収納した電力伝送用コアと、他のリング状の溝内に信号伝送用コイルを収納した信号伝送用コアとを同心状に非磁性体のフレーム内に配置した偏平円筒形状のトランス1 Nonmagnetic 2. A ring-shaped power transmission core accommodating the power transmission coil in the groove, and a signal transmission core accommodating the signal transmission coils other ring-shaped groove concentrically a flat cylindrical shape which is placed within the body of the frame transformer 1
    対を空隙を介して対向配置させた回転型電力・信号用無接触式伝送装置において、 前記電力伝送用コアと前記信号伝送用コアとの間の非磁性体のフレームのその対向面と作る空隙を、前記電力伝送用コアの対向面の空隙よりも軸方向にずれた平行な面に配置することを特徴とする回転型電力・信号用無接触式伝送装置。 In contact-free transmission apparatus for rotary power and a signal obtained by oppositely arranged with a gap pairs, gap makes with its opposite surface of the frame of nonmagnetic material between the signal transmission core and said power transmission core a rotary power and signal contact-free transmission apparatus characterized by disposing a plane parallel shifted in the axial direction than the air gap of the opposed surface of the power transmission core.
JP15529197A 1997-06-12 1997-06-12 Non-contact transmitter for rotary power and signal Pending JPH113828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15529197A JPH113828A (en) 1997-06-12 1997-06-12 Non-contact transmitter for rotary power and signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15529197A JPH113828A (en) 1997-06-12 1997-06-12 Non-contact transmitter for rotary power and signal

Publications (1)

Publication Number Publication Date
JPH113828A true true JPH113828A (en) 1999-01-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP15529197A Pending JPH113828A (en) 1997-06-12 1997-06-12 Non-contact transmitter for rotary power and signal

Country Status (1)

Country Link
JP (1) JPH113828A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002533918A (en) * 1998-12-22 2002-10-08 レイセオン・カンパニー Apparatus and method for transferring energy through a non-connectorized interface
JP2010517309A (en) * 2007-01-29 2010-05-20 アナロジック コーポレーション Shielded power coupling device
JP5843299B1 (en) * 2015-01-13 2016-01-13 有限会社アイ・アール・ティー Inverter drive

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002533918A (en) * 1998-12-22 2002-10-08 レイセオン・カンパニー Apparatus and method for transferring energy through a non-connectorized interface
JP2010517309A (en) * 2007-01-29 2010-05-20 アナロジック コーポレーション Shielded power coupling device
JP2014160862A (en) * 2007-01-29 2014-09-04 Analogic Corp Shielded power coupling device
JP5843299B1 (en) * 2015-01-13 2016-01-13 有限会社アイ・アール・ティー Inverter drive

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