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Non-contact feeding device for elevator car

A non-contact, feeding device technology, applied in the direction of circuits, inductors, electrical components, etc., can solve the problems of complex manufacturing process and high price, and achieve the effects of low equipment cost, increased power, and excellent power transmission efficiency

Inactive Publication Date: 2008-03-19
TOSHIBA ELEVATOR KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] However, the twisted strand made of a plurality of fine wires having a diameter less than twice the skin depth δ is complex and expensive to manufacture.

Method used

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  • Non-contact feeding device for elevator car
  • Non-contact feeding device for elevator car
  • Non-contact feeding device for elevator car

Examples

Experimental program
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Effect test

Embodiment Construction

[0055] Embodiments of the present invention will be described below with reference to the drawings.

[0056] 1st embodiment

[0057] Fig. 1 is a schematic diagram showing a main part of an elevator system incorporating a non-contact power feeding device for an elevator car according to a first embodiment of the present invention.

[0058] A control panel 23 and a hoist 24 are installed in a machine room 22 provided above an elevator passageway 21 formed in a building such as a building. On the main pulley 25 and deflector pulley 26 of hoisting machine 24, car 27 is installed at one end, and the main cable 29 of balance weight 28 is installed on the other end.

[0059] A motor drive circuit for driving the motor in the hoist 24 is installed in the control panel 23 that supplies single-phase AC power from an external single-phase commercial power supply 30 through a power cable 31 . And in the control panel 23, an operation control unit is installed, and the operation control ...

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PUM

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Abstract

A high-frequency current of 50-100 Hz is applied to a power lead (34) of a remotion path conductor configuration along an elevator cage (27) from a high-frequency electric source. The cage is mounted with a magnetic core (36) in magnetic coupling with the power lead in non-contact manner. The magnetic core is wound with a secondary windings (37) which induces to generate an alternating current voltage corresponding to the high-frequency current flowing over the power lead. Through an electricity bearing part (38), the alternating current voltage generated through induction at the secondary windings is provided to a load (39) after a power conversion. The power lead consists of a conducting wire (40) which is made of electric conducting materials and has a circular cross-section shape and an insulation coating layer (41) coated at the periphery of the conducting wire, wherein the radius of the conducting wire (40) is below the skin depth (delta) corresponding to frequency of the high-frequency current applied by the high-frequency electric source.

Description

technical field [0001] The present invention relates to an elevator system in a building such as a building, in particular to a non-contact power feeding device for an elevator car that supplies power to a car moving up and down in an elevator passage from the outside in a non-contact manner. Background technique [0002] In an elevator system in a building such as a building, an elevator passage is formed in the building from the lowest floor to the uppermost floor. The elevator car moves up and down in the hoistway. [0003] A method of supplying power from the outside in a non-contact manner to a load mounted on a moving body such as this car that moves within a certain range such as an elevator passage is being put into practical use. The electromagnetic induction principle shown in FIG. 16 can be used to supply power in a non-contact manner. As shown in Figure 16, the wire (primary coil 2) flows an alternating current i 1 , a magnetic flux Φ is generated around the c...

Claims

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Application Information

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IPC IPC(8): H02J17/00H01F38/14B66B1/34B66B7/06
Inventor 繁田正昭伊东弘晃中垣薰雄出森公人中田好彦大坪亮海田勇一郎
Owner TOSHIBA ELEVATOR KK
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