JP2018020899A - Elevator system - Google Patents

Abstract

Provided is an elevator system having a configuration capable of supplying power to a moving body in a non-contact manner, and capable of reducing vibration and noise during traveling of the moving body by reducing air resistance of the moving body. An aspect of an elevator system according to the present invention includes a power receiving device provided on a moving body, a base fixed to the moving body, a coil holding unit fixed perpendicular to the base, and a coil holding unit. And a magnetic body provided between the pair of coils and the base, and the base and the coil holding member have a T-shape when viewed from above. None, an end of the coil holding portion has a rectifying structure that tapers in a direction away from the moving body. [Selection diagram] FIG.

Description

  The present invention relates to an elevator system.

  With the recent increase in the height of buildings, it is necessary to lengthen the elevator installed in the building. In general elevators, power is supplied to equipment in a car by a power supply line called a tail cord that is suspended from the car. As the length of the elevator becomes longer, the tail cord also becomes longer, so that the mass of the tail cord increases, and there is a concern that if the length exceeds a certain length, it cannot withstand its own weight. Therefore, in a long-stroke elevator, a configuration without a tail cord is desired.

  As a method for supplying power to in-car equipment without using a tail cord, there is a technique disclosed in Patent Document 1. Patent Document 1 discloses a moving body, a guide rail that guides the operation of the moving body, a power supply installed on the building side, a power supply unit that is connected to a power source of the building and supplies power to the power supply, A receiver that is installed in the body and receives power via the power receiver and a power receiving means that is installed in the mobile body and receives power via the receiver, and supports the power supply on the guide rail and partly on the guide rail There is disclosed a moving body system characterized in that the moving body system is installed on a rail bracket that supports a formed member or a guide rail. In the above configuration, when the elevator car rests on the floor, the building-side power supply and the moving body (cage) -side received electron face each other in a non-contact manner, and the battery is provided on the moving body by magnetic coupling. A system is disclosed in which power is supplied, electric power is stored in a battery, and electric power stored in the battery is supplied to a device in a moving body. In the configuration of Patent Document 1, the horizontal displacement tolerance is improved by having two gap portions of the magnetic material constituting the magnetic circuit.

International Publication No. 2002/098779

  Along with the above-described increase in the height of the elevator and the lengthening of the elevator, speeding up of the elevator is required, but with the speeding up of the elevator, noise (wind noise) and vibration generated in the car increase. The mobile body system described in Patent Document 1 has not been studied at all for reducing noise and vibration generated in a car.

  Therefore, in view of the above circumstances, an object of the present invention is to have a configuration capable of supplying power to a moving body in a non-contact manner, and to reduce vibration and noise during traveling of the moving body by reducing the air resistance of the moving body. It is to provide an elevator system that can.

  An aspect of an elevator system according to the present invention is such that a power receiving device provided in a moving body sandwiches a base fixed to the moving body, a coil holding portion fixed perpendicular to the base, and the coil holding portion. A pair of coils provided and a magnetic body provided between the pair of coils and the base, and when viewed from above, the base and the coil holding member have a T-shape, and the coil is held A rectifying structure that tapers in a direction away from the moving body is provided at the end of the part.

  Another aspect of the elevator system according to the present invention is such that a power receiving device provided in a moving body sandwiches a base fixed to the moving body, a coil holding portion fixed perpendicular to the base, and the coil holding portion. And a magnetic body provided between the pair of coils and the base, and when viewed from above, the base and the coil holding member form a T shape and move. A rectifying cover that tapers in a direction away from the moving body is provided at an end of the body in the ascending / descending direction.

  More specific configurations of the present invention are described in the claims.

  According to the present invention, there is provided an elevator system that has a configuration capable of supplying power to a moving body in a non-contact manner and that can reduce vibration and noise during traveling of the moving body by reducing the air resistance of the moving body. be able to.

  Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

1 is a schematic diagram illustrating an elevator system according to a first embodiment. FIG. 2 is a top view of FIG. 1. It is a perspective view which shows typically an example of the electric power feeder which concerns on the elevator system which concerns on this invention. FIG. 4 is a top view of FIG. 3. It is a perspective view which shows typically the structure (power receiving part) of a part of power receiving apparatus which comprises the elevator system which concerns on Example 1. FIG. FIG. 6 is a top view of FIG. 5. 1 is a perspective view of a power receiving device that constitutes an elevator system according to Embodiment 1. FIG. It is a perspective view of the power receiving apparatus which comprises the elevator system which concerns on Example 2. FIG. It is a perspective view of the power receiving apparatus which comprises the elevator system which concerns on Example 3. FIG. It is a side view which shows typically the elevator system which concerns on Example 4. FIG. It is a side view which shows typically the elevator system which concerns on Example 5. FIG.

  Hereinafter, an example of a form for carrying out the present invention is explained in detail, referring to an accompanying drawing. In addition, in each figure, about the component which has the substantially same function or structure, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  FIG. 1 is a schematic diagram illustrating an elevator system according to a first embodiment, and FIG. 2 is a top view of FIG. The arrangement shown in FIGS. 1 and 2 is merely an example, and different arrangements may be used as long as the function of the elevator is not impaired. As shown in FIGS. 1 and 2, the elevator system 1 a according to the first embodiment includes a moving body 4 that moves up and down a hoistway 45, a counterweight 40 that moves up and down together with the moving body 4, and one end connected to the moving body 4. And a rope 44 having the other end connected to the counterweight 40. The moving body 4 is provided with a door 43 for passengers to get on and off. In the present embodiment, a car that carries passengers is shown as the moving body 4, but is not limited to this, and it may be one that carries only luggage. The moving body 4 is guided by the guide rails 4a and 4b and moves up and down in the vertical direction of the paper.

  The governor 41 is a safety device that stops the moving body 4 when the moving speed of the moving body 4 exceeds a predetermined value. The position detection device 42 detects the position of the moving body 4 in the hoistway 45.

  As shown in FIG. 2, the mobile body 4 is provided with a power receiving device 200, and the hoistway 45 is provided with a power feeding device 100 for performing non-contact power feeding to the power receiving device 200. Power is supplied to the power supply apparatus 100 via the power transmission circuit 10.

  On the upper part of the moving body 4, a control unit 5 that controls a car device (elevator device (door, etc.)) and supplies power, and a power storage device (lead storage battery, lithium ion battery, capacitor, etc.) 7 that stores electric power. And a power receiving circuit 6 that supplies electric power from the outside to the power storage device 7.

  The control unit 5 acquires that the moving body 4 has arrived at the power supply floor where the power transmission device 100 is installed by the position detection device 42, and acquires the acquired information to an elevator control device (not shown) installed outside the car. Transmit and control the opening and closing of the door 43. At this time, the control unit 5 checks the remaining battery level of the power storage device 7, turns on the power transmission circuit 10 if charging is necessary, and supplies power to the power receiving device 200 via the power supply device 100. The power supplied to the power receiving device 200 is supplied to the power storage device 7 via the power receiving circuit 6.

  As shown in FIG. 2, the power transmission device 100 of the elevator system according to the present invention uses a U-shaped device (hereinafter also referred to as “U-shaped power feeding device”) when viewed from above. On the other hand, the power receiving device 200 is a T-shaped device (hereinafter also referred to as “T-shaped power receiving device”) when viewed from above. In the present invention, a set of the U-shaped power feeding device and the T-shaped power receiving device constitutes a non-contact power feeding device. Below, the structure of the electric power feeder 100 and the receiving device 200 is explained in full detail.

  FIG. 3 is a perspective view schematically showing an example of a power feeding device according to the elevator system of the present invention, and FIG. 4 is a top view of FIG. As shown in FIGS. 3 and 4, the power supply apparatus 100 includes a base 120 fixed to the moving body 4 and a pair of coil holding parts 121 and 122 fixed vertically to the base 120 at a predetermined interval. And the coils 101 and 102 provided inside each of the pair of coil holding parts 121 and 122 and the magnetic body 110 provided between the coils 101 and 102 and the coil holding parts 121 and 122. The power supply apparatus 100 is formed in a U shape when viewed from the upper surface by the base 120 and the pair of coil holding portions 121 and 122.

  The base 120 is fixed to a wall surface or a beam in the hoistway 45. The coils 101 and 102 are formed by winding a coil of a good conductor such as copper in a spiral shape or a spiral shape, and high frequency power is applied by the power transmission circuit 10. The winding diameter of each coil may be the same or different. The magnetic body 110 is, for example, ferrite, and promotes the flow of magnetic flux that flows from the coils 101 and 102 of the power supply apparatus 100 to the power reception apparatus 200 coil described later, and the magnetic flux leaks outside the power supply apparatus 100 and the power reception apparatus 200. To prevent other devices from being affected.

  Next, the power receiving device will be described. Prior to the description of the configuration of the entire power receiving device, first, the configuration of the power receiving unit 230 configuring the power receiving device will be described. FIG. 5 is a perspective view schematically showing a power receiving device constituting the elevator system according to the first embodiment, and FIG. 6 is a top view of FIG. As shown in FIGS. 5 and 6, the power receiving device 230 sandwiches the base 220 fixed to the moving body 4, the coil holding part 221 fixed perpendicular to the base 220, and the coil holding part 221. It has a pair of coils 201 and 202 provided, and a magnetic body 210 provided between the pair of coils 201 and 202 and the base 220, and when viewed from above, the base 220 and the coil holding member 221. And have a T-shape. The coils 201 and 202 and the magnetic body 210 have the same functions as the coils 101 and 102 and the magnetic body 110 of the power supply apparatus 100 described above. It is preferable that the bottom surface of the base 220 is fixed to the ceiling of the moving body 4. By fixing in this way, the space in the width direction of the hoistway 45 can be saved as compared with the case where the side surface of the base 220 is fixed to the side surface of the moving body 4.

  When the moving body 4 stops, the pair of coils 201 and 202 of the power receiving unit 230 is accommodated between the pair of coil holding units 121 and 122 of the power feeding device 100 without contact, and the coil 101 of the power feeding device 100 is stored. 102 and the coils 201 and 202 of the power receiving unit 230 face each other, and power is supplied between the coils 101 and 102 of the power feeding apparatus 100 and the coils 201 and 202 of the power receiving unit 230. Thus, by using the U-shaped power feeding device and the T-shaped power receiving device described above, power can be fed to the moving body 4 in a non-contact manner. In the configuration as described above, the U-shaped structure of the coils 101 and 102 of the power feeding device 100 is sandwiched between the T-shaped structure of the power receiving unit 230, and the horizontal displacement tolerance of the non-contact power feeding device. Becomes higher.

  FIG. 7 is a perspective view of the power receiving device constituting the elevator system according to the first embodiment. The power receiving device 200 constituting the elevator system according to the first embodiment is obtained by providing a rectifying structure (rectifying members 260a and 260b) in the power receiving unit 230 shown in FIGS. As shown in FIG. 7, the power receiving device 200 a according to the present embodiment is provided with rectifying members 260 a and 260 b at the upper and lower ends of the coil holding portion 221 in the up and down direction, respectively. The rectifying member 260 a provided at the upper end of the coil holding part 221 has a shape protruding from the upper end of the coil holding part 221 while tapering in the ascending direction of the moving body 4. The rectifying member 260 b provided at the lower end of the coil holding part 221 has a shape that projects from the lower end of the coil holding part 221 while tapering in the downward direction of the moving body 4. In other words, the rectifying member 260a has a shape in which the cross-sectional area gradually decreases in the upward direction of the moving body 4, and the rectifying member 260b has the cross-sectional area in the descending direction of the moving body 4. It has a shape that gradually decreases. The rectifying members 260a and 260b have a shape in which the outline draws a streamline when viewed from the side surface of the power receiving device 200a.

  As shown in FIG. 2, the power receiving device 200 a protrudes from the moving body 4, and air resistance increases when the moving body 4 travels at a high speed, and vibration due to aerodynamics occurs in the moving body 4 or wind noise increases. There is a risk of doing. However, by providing the rectifying members 260a and 260b having the shapes as described above at the upper and lower ends of the coil holding portion 221 constituting the power receiving device 200a, the rectifying member 260a rectifies the air when the moving body 4 is raised. Thus, the air resistance can be reduced, and the rectifying member 260b can rectify the air when the moving body 4 is lowered to reduce the air resistance. As a result, it is possible to reduce vibrations and noises that occur during the raising and lowering of the moving body 4.

  As a configuration capable of supplying power without contact, there is a configuration in which the shapes of the power supply device 100 and the power reception device 200 are reversed, that is, a configuration having a T-shaped power supply device and a U-shaped power reception device. The protrusion provided in 4 increases, and air resistance increases. For this reason, a T-shaped power receiving device is used in the present invention.

  As the material of the rectifying units 260a and 260b, a non-magnetic material is preferably used as much as possible because a high-frequency magnetic field is generated in the vicinity of the coil. For example, it is preferably composed of a resin such as fiber reinforced plastic or a metal.

  With the above configuration, the flow of air is rectified when the elevator moves at high speed, and vibration and noise generated in the moving body 4 due to wind pressure are reduced.

  FIG. 8 is a perspective view of a power receiving device constituting the elevator system according to the second embodiment. The configuration different from the first embodiment of the power receiving device 200b according to the present embodiment is that the rectifying member 260a is provided only at the upper end of the coil holding portion 221. As in the first embodiment, the rectifying members 260a and 260b may be provided at the upper and lower portions of the coil holding portion 221, but the rectifying member 260a may be provided only at the upper end as in the present embodiment. In ultra-high speed elevators for long journeys, the descending speed is often suppressed to prevent passengers from clogging. Therefore, in order to rectify the air when the moving speed is high, the rectifying member 260a is attached only to the upper end of the coil holding part 221 to reduce the weight and cost while reducing vibration and noise due to wind pressure. Is possible.

  FIG. 9 is a perspective view of a power receiving device constituting the elevator system according to the third embodiment. The configuration different from the first embodiment of the power receiving device 200c according to the present embodiment is that the coil holding portion 261 itself has a rectifying structure. In other words, the coil holding part 261 has a configuration in which the coil holding part 221 according to the first embodiment and the rectifying members 260a and 260b are integrated.

  As shown in FIG. 9, the power receiving device 200c according to the present embodiment has a shape in which the end of the coil holding portion 261 tapers in a direction away from the moving body, and the coil holding portion 261 is magnetic. The body 210 and the coils 201 and 202 are held and attached to the base 220. Even with such a configuration, as in the case of the first and second embodiments, it is possible to sufficiently obtain an effect of reducing vibration and noise generated in the moving body 4 due to wind pressure during the raising and lowering of the moving body 4.

  The coil holding part 261 can be manufactured, for example, by molding the coils 201 and 202 and the magnetic body 210 with resin. Moreover, a hole may be provided in the coil holding portion 261 and the coils 201 and 202 and the magnetic body 210 may be provided in the hole. Furthermore, the coil holding part 261 may be configured to be assembled from a plurality of members.

  With the above configuration, the flow of air is rectified when the elevator moves at high speed, and vibration and noise due to wind pressure are reduced. In addition, since the coil holding portion 261 covers the coils 201 and 202 and the exposed surfaces of the coils 201 and 202 are small, the dust resistance and waterproof function of the coils 201 and 202 can be enhanced.

  FIG. 10 is a side view schematically illustrating the elevator system according to the fourth embodiment. In the elevator system 1b according to the present embodiment, the power receiving device 200 has a configuration in which the rectifying member 262 is provided only at the upper end of the coil holding portion 221 as in the second embodiment. In the present embodiment, the moving body 4 further includes rectifying covers 80 and 81 having a shape that tapers in a direction away from the moving body 4 at the end in the ascending / descending direction of the moving body 4. In this way, by providing not only the power receiving apparatus 200 but also the moving body 4 with the rectifying structure, it is possible to obtain an effect of further reducing vibration and noise generated in the moving body 4 due to wind pressure during the raising and lowering of the moving body 4. it can.

  As a material for the rectifying covers 80 and 81, a material made of a non-metal such as reinforced plastic, a metal such as aluminum, or both can be used. The rectifying covers 80 and 81 can be fixed to the moving body 4 by fastening means such as screws.

  Even with the configuration of the present embodiment, there is an elevator system that has a configuration capable of supplying power to a moving body in a non-contact manner and that can reduce vibration and noise during traveling of the moving body by reducing air resistance of the moving body. Can be provided. Furthermore, although not shown, since the wiring of the power receiving device 200, the power receiving circuit 6, and the power storage device 7 can be covered with the car rectifiers 80 and 81, the dustproof and waterproof performance of these devices can be expected.

  FIG. 11 is a side view schematically illustrating the elevator system according to the fifth embodiment. In the elevator system 1c according to the present embodiment, the power receiving device 200 is not provided with a rectifying structure, and rectifying covers 80 and 81 are provided at the upper end and the lower end of the moving body 4 as in the fourth embodiment. With such a configuration, the flow of air is rectified when the elevator moves at high speed, and vibration and noise due to wind pressure are reduced. Moreover, since it can be set as the structure which covers a receiving device, a receiving circuit, an electrical storage apparatus, etc. with the rectification | straightening covers 80 and 81, dustproof and a water function can be strengthened.

  As described above, according to the present invention, it is possible to supply power to a moving body in a non-contact manner, and reduce the air resistance of the moving body to reduce vibration and noise during traveling of the moving body. It has been demonstrated that an elevator system can be provided.

  The present invention is not limited to the above-described embodiments, and various other application examples and modifications can of course be taken without departing from the gist of the present invention described in the claims.

  For example, the above-described exemplary embodiments are detailed and specific descriptions of the configuration of the apparatus and the system in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described above. . Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment. In addition, the configuration of another embodiment can be added to the configuration of a certain embodiment. Moreover, it is also possible to add, delete, and replace other configurations for a part of the configuration of each exemplary embodiment.

  Specifically, although the power feeding device 100 and the power receiving device 200 used in the above-described embodiments use electromagnetic induction by coils, electromagnetic induction by power feeding lines may be used. Moreover, the electric power feeding using the electric field coupling by the electric field using a metal plate may be used.

Each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit.
Further, the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

  DESCRIPTION OF SYMBOLS 1a, 1b, 1c ... Elevator system, 4 ... Mobile body (car), 4a, 4b ... Guide rail, 5 ... Control part, 6 ... Power receiving circuit, 7 ... Power storage device, 10 ... Power transmission circuit, 80 ... Upper part of mobile body Rectifying cover, 81 ... rectifying cover under the moving body, 100 ... power transmitting device, 200, 200a, 200b, 200c, 200d ... power receiving device, 230 ... power receiving unit, 40 ... counterweight, 41 ... governor, 42 ... position detecting device 43, door, 44, rope, 45, hoistway, 101, 102, 201, 202 ... coil, 121, 122, 221, 261 ... coil holding part, 110, 210 ... magnetic body (ferrite), 120, 220 ... Base, 260a, 262... Rectifying member above power reception device, 260b... Rectification cover below power reception device, base having 261 rectification structure.

Claims (10)

In an elevator system comprising: a moving body that moves up and down a hoistway; a counterweight that moves up and down together with the moving body; and a rope that has one end connected to the moving body and the other end connected to the counterweight.
A power supply device provided in the hoistway and a power reception device provided in the moving body, the power supply device configured to supply power to the power reception device without contacting the power reception device. Have
The power receiving device includes: a base fixed to the moving body; a coil holding portion fixed perpendicular to the base; a pair of coils provided so as to sandwich the coil holding portion; and the pair of coils And a magnetic body provided between the base and the base, and when viewed from above, the base and the coil holding portion have a T shape,
An elevator system comprising a rectifying structure having a shape that tapers in a direction away from the moving body at an end of the coil holding portion. In the elevator system according to claim 1,
The said rectification | straightening structure is provided in the upper end of the said coil holding | maintenance part, and is comprised with the rectification | straightening member which protrudes from the said upper end toward the raising direction of the said mobile body, and is taper-down, The elevator system characterized by the above-mentioned. In the elevator system according to claim 1,
The rectifying structure is provided at the upper end of the coil holding part, and is provided at the lower end of the coil holding part, the rectifying member protruding while tapering from the upper end toward the rising direction of the moving body, and An elevator system comprising: a rectifying member that projects while being tapered in a descending direction of the moving body. In the elevator system according to claim 1,
The rectifying structure is configured by an end portion of the coil holding portion,
The elevator system according to claim 1, wherein the end portion has a shape that tapers in a direction away from the moving body. In the elevator system according to any one of claims 1 to 4,
The power supply device is provided inside each of the base fixed to the hoistway, a pair of coil holding portions fixed perpendicularly to the base at a predetermined interval, and the pair of coil holding portions. And a magnetic body provided between the coil and the coil holding part,
When the moving body stops, the pair of coils of the power receiving device is housed without contact between the pair of coil holding portions of the power feeding device, and the coil of the power feeding device and the coil of the power receiving device Are opposed to each other, and electric power is supplied between the coil of the power feeding device and the coil of the power receiving device. In the elevator system according to any one of claims 1 to 4,
The elevator system further includes a rectifying cover having a shape that tapers in a direction away from the moving body at an end portion of the moving body in the up-and-down direction. In an elevator system comprising: a moving body that moves up and down a hoistway; a counterweight that moves up and down together with the moving body; and a rope that has one end connected to the moving body and the other end connected to the counterweight.
A power supply device provided in the hoistway and a power reception device provided in the moving body, the power supply device configured to supply power to the power reception device without contacting the power reception device. Have
The power receiving device includes: a base fixed to the moving body; a coil holding portion fixed perpendicular to the base; a pair of coils provided so as to sandwich the coil holding portion; and the pair of coils And a magnetic body provided between the base and the base, and when viewed from above, the base and the coil holding member have a T-shape,
An elevator system, wherein a rectifying cover having a shape that tapers in a direction away from the moving body is provided at an end of the moving body in the up-and-down direction. The elevator system according to claim 7,
An elevator system, wherein a rectifying cover having a shape that tapers from the upper end toward the rising direction of the moving body is provided at an upper end of the moving body. The elevator system according to claim 7,
The rectifying cover having a shape that tapers from the upper end toward the rising direction of the moving body is provided at the upper end of the moving body,
The elevator system according to claim 1, wherein the rectifying cover having a shape that tapers from the lower end toward the descending direction of the moving body is provided at a lower end of the moving body. The elevator system according to any one of claims 7 to 9,
The power feeding device is provided inside each of the base fixed to the movable body, a pair of coil holding members fixed perpendicularly to the base at a predetermined interval, and the pair of coil holding members. And a magnetic body provided between the coil and the coil holding member,
When the moving body stops, the pair of coils of the power receiving device is housed without contact between the pair of coil holding members of the power feeding device, and the coil of the power feeding device and the coil of the power receiving device Are opposed to each other, and electric power is supplied between the coil of the power feeding device and the coil of the power receiving device.

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