JP2007246266A - Noncontact feeder device of elevator and feeder line used therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a noncontact feeder device of an elevator capable of stably supporting a feeder line for a long period by accurately preventing the feeder line for feeding power, in the state of noncontact with each other, to the car of the elevator from being damaged or broken. <P>SOLUTION: This noncontact feeder device comprises the feeder line 16 connected to a power supply device 15 and so disposed as to be extended from the inside upper part to the inside lower part of a hoistway 1 in which the car 7 of the elevator moves vertically and a power receiving device 34 so installed in the car 7 as to face the feeder line 16 in the state of noncontact with each other. The feeder line 16 comprises a conductor 25, a high strength material 26 such as aramid fibers disposed along the conductor 25, and an insulating coating material formed by integrally joining the conductor 25 to a high strength material 26. The top end part of the high strength material 26 is fixed to the hooking part of a machine room 2 to support the feeder line 16. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a non-contact power feeding device for an elevator that supplies power in a contactless manner to a power receiving device of a car that moves up and down in a hoistway, and a power supply line used in the non-contact power feeding device.

  Various types of electrical equipment such as a door driving device, a lighting device, a ventilation device, and an operation panel are provided in an elevator car that moves up and down in a hoistway of a building. Therefore, it is necessary to supply required electric power to these electric devices.

  In a conventional elevator, a power feeding unit is provided in a hoistway, and a cable called a tail cord is suspended between the power feeding unit and the bottom of the car, and each electric car is connected via the cable. Power is supplied to the device.

  However, in such a means using the tail cord, the tail cord is bent in the middle as the car is raised and lowered, so that the service life is shortened, and the tail cord comes into contact with the equipment in the hoistway due to the shaking. Risk of damage.

  Therefore, as can be seen in Japanese Patent Application Laid-Open Nos. 9-56088 and 2002-338150, there has been proposed a means for supplying electric power to the car in a contactless manner without using a tail cord. That is, a power supply line is provided so as to extend from the upper part to the lower part in the hoistway of the building, and a power receiving device facing the power supply line in a non-contact manner is provided in the car, and a high-frequency current is supplied to the power supply line. Based on the above, electric power is generated in a power receiving device of the car, and the electric power is supplied to each electric device of the car.

JP 9-56088 A JP 2002-338150 A

  Thus, in the case of means for supplying electric power to the car in a non-contact manner, it is necessary to stretch a power supply line from the upper part to the lower part in the hoistway. The elevator is a transportation means that moves in the vertical direction, unlike a transportation means that moves in the horizontal direction like an automobile or a railroad. If it is a means of transportation that moves in the horizontal direction, a power supply line that feeds power in a non-contact manner is stretched in the horizontal direction, and the power supply line is stably supported if it is suspended on the ground or wall surface at an appropriate interval. be able to.

  However, in a transportation means such as an elevator that moves in the vertical direction, the feeder line must be stretched in the vertical direction. In this case, the weight of the entire length of the feeder line is applied as a large load to the support portion at the upper end of the feeder line. Especially in an elevator with a considerably long lifting process such as a high-rise building, the power supply line becomes long and the load applied to the support part at the upper end part becomes considerably large, and the power supply line may be damaged or broken at the support part. Occurs.

  The present invention has been made paying attention to such points, and the object of the present invention is to stably prevent damage and breakage at the support portion at the upper end of the power supply line and support it stably over a long period of time. It is an object of the present invention to provide a non-contact power feeding device for an elevator that can be used and a power feeding line used in the non-contact power feeding device.

  The invention of claim 1 is installed in a building and outputs a current of a predetermined frequency, and is connected to the power supply so as to extend from the upper part to the lower part in the hoistway where the elevator car moves up and down. In an elevator non-contact power feeding device comprising: a power feeding line disposed on the car; and a power receiving device installed on the car so as to be opposed to the power feeding line in a non-contact manner, the power feeding line includes a conductor and a conductor along the conductor. A high-strength material arranged in a unit, and a coupling means that integrally couples the conductor and the high-strength material, and the high-strength material is fixedly supplied to a latching portion provided in the building. An electric wire is supported, the conductor is connected to the power supply device, a current having a predetermined frequency is output from the power supply device to the conductor, and electric power is generated in the power receiving device of the car based on the current. It is said.

  The invention according to claim 2 is characterized in that the connecting means of the feeder line is formed of an insulating coating material integrally covering the outer periphery of the conductor and the high-strength material.

  According to a third aspect of the present invention, the power supply line coupling means is composed of a winding member such as a band, a wire, a string, or a tape wound around the outer circumference of the conductor and the high-strength material at predetermined intervals in the longitudinal direction. It is characterized by being.

  The invention of claim 4 is characterized in that the high-strength material of the feeder line is made of a non-conductive material.

  The invention according to claim 5 is characterized in that the power supply line is disposed adjacent to a guide rail installed in the hoistway.

  The invention according to claim 6 is characterized in that a middle portion of the feeder line disposed in the hoistway is supported by a supporting means against a wall surface of the hoistway.

  The invention according to claim 7 is characterized in that at least a part of the members constituting the support means is a member common to a member that supports the guide rail on the wall surface of the hoistway.

  The invention of claim 8 is characterized in that a member constituting the support means is made of a non-conductive material.

  The invention according to claim 9 is characterized in that the distance between the power supply line and the guide rail is kept substantially constant by the power supply line being supported by the support means.

  According to a tenth aspect of the present invention, in order to supply electric power in a non-contact manner to a power receiving device of a car that is arranged from the upper part to the lower part in the hoistway of the building where the elevator car moves up and down, and moves up and down in the hoistway. A conductor to which a current of a predetermined frequency is supplied, a high-strength material disposed along the conductor, and a coupling means that integrally couples the conductor and the high-strength material. And the upper end portion of the high-strength material is supported in the hoistway by being fixed to a latching portion provided in the building.

  According to the present invention, the load due to the weight of the feeder line is supported by the high-strength material to reliably prevent the breakage and breakage, and the feeder line can be stably supported in the hoistway for a long period of time. .

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

  FIG. 1 is an explanatory view showing the overall configuration of the elevator according to the first embodiment, and FIG. 2 is a front view seen from the direction of arrows AA in FIG. As shown in FIG. 1, a machine room 2 is provided in the upper part of the hoistway 1 of the building, and a hoisting machine 3 is installed in the machine room 2. The hoisting machine 3 includes a sheave 5 driven by a motor 4, and a main rope 6 is wound around the sheave 5.

  The main rope 6 is led out into the hoistway 1, and a car 7 is attached to one end of the main rope 6 and a counterweight 8 is attached to the end of the other end. The car 7 and the counterweight 8 are the main rope. 6 is suspended in the hoistway 1.

  The motor 4 of the hoisting machine 3 is controlled by a control device 9. When the motor 4 is activated under the control of the control device 9, the sheave 5 rotates, and the car 7 and the counterweight 8 are driven via the main rope 6 by this rotation, and move up and down in opposite directions. The car 7 moves up and down along the guide rail 14 shown in FIG. In FIG. 1, the guide rail 14 is not shown because the drawing is complicated.

  A power supply device 15 that outputs a current having a predetermined frequency is installed in the machine room 2, and a power supply line 16 is led out from the power supply device 15 into the hoistway 1. The power supply line 16 has a long U shape having an outward path portion 16a, a return path portion 16b, and a turn-back portion 16c, and is disposed so as to extend in the vertical direction along the guide rail 14 in the hoistway 1.

  As shown in FIGS. 2 and 7, the guide rail 14 is fastened and fixed to a plurality of rail brackets 18 attached to the inner wall portion of the hoistway 1 via rail clips 19. A plurality of locations in the middle of the feeder line 16 are supported by the rail bracket 18 via a support member 21 formed of a nonconductive material such as a synthetic resin.

  As shown in FIG. 8, the support member 21 includes an annular grip portion 22 that grips the outer periphery of the power supply line 16, and a base portion 24 that is integrally connected to the grip portion 22 via an arm portion 23. The base portion 24 is fastened and fixed to the rail bracket 18 by using bolts or the like, and a plurality of points in the middle of the power supply line 16 are supported by the rail bracket 18 via these support members 21, and the swinging movement is suppressed.

  FIG. 6 shows a cross-sectional structure of the feeder line 16. The power supply line 16 is made of a non-conductive material such as an aramid fiber that is arranged along the longitudinal direction of the conductor 25 on both sides of the power supply conductor 25 and the conductor 25 and is strong against axial tension. A high-strength material 26 having strength, and an insulating covering material 27 as a coupling means that covers the outer periphery of the conductor 25 and the high-strength material 26 and integrally couples both of them, and has an overall cross-sectional shape. It is almost oval.

  As shown in FIGS. 1 and 2, both ends of the power supply line 16 facing the machine room 2 are support portions 30. A specific structure of the support portion 30 is shown in FIG. The power supply line 16 is drawn out so that the insulation coating material 27 is peeled off at the end facing the machine room 2 and the conductor 25 and each high-strength material 26 are separated from each other. The terminal portions 26a of the separated high-strength materials 26 are wound in a hook shape on a latching portion 31 made of a shaft, a beam or the like installed in the machine room 2, and the root thereof is secured by a fastening material 32 such as a wire. The part is bound and fixed to the latching part 31. The conductor 25 separated from each high-strength material 26 is led out to the side and connected to the power supply device 15. FIG. 9 shows the structure of the support portion 30 at one end of the feeder line 16, but each high-strength material 26 is fixed to the latching portion 31 with the same structure at the other end. Yes.

  As shown in FIGS. 1 and 3, a power receiving device 34 is mounted on the upper portion of the car 7. The power receiving device 34 includes a pickup device 36 installed on the car 7 via a base 35. As shown in FIGS. 4 and 5, the pickup device 36 includes an E-shaped iron core 37 having, for example, three leg portions 37 a, 37 b, and 37 c, and a coil 38 wound around an intermediate leg portion 37 b of the iron core 37. And. The forward path portion 16 a of the power supply line 16 is passed through the gap between the legs 37 a and 37 b of the iron core 37, and the return path 16 b is passed through the gap between the legs 37 b and 37 c of the iron core 37.

  The coil 38 wound around the iron core 37 is connected to an in-car power supply device 42 via an electric wire 39. The in-car power supply device 42 is connected to the car control device 44 and the power storage device via transmission lines 43a and 43b. 45, and both the car control device 44 and the power storage device 45 are connected to each other via a transmission line 43c.

  Regardless of the movement of the car 7, the feed line 16 is always kept in non-contact with the iron core 37, and keeping the distance from the iron core 37 as small as possible is important for improving the feeding efficiency. For this reason, the power supply line 16 is locked to the rail bracket 18 via the support member 21 at a plurality of locations on the way, and is supported in a stable state.

  Next, the operation will be described.

  A current having a predetermined frequency is supplied to the conductor 25 of the feeder line 16 from the power supply device 15 provided in the machine room 2. The feed line 16 is opposed to the iron core 37 of the power receiving device 34 provided in the car 7, and the forward path portion 16a and the return path portion 16b of the feed line 16 are connected to the leg portions 37a, 37b, and 37c of the iron core 37 from three directions. Therefore, a magnetic field fluctuation is formed in the iron core 37 based on a current having a predetermined frequency flowing through the conductor 25 of the feeder line 16, and a large electric power is generated in the coil 38.

  The electric power generated in the coil 38 is taken into the car power supply device 42 via the electric wire 39. Then, necessary power is supplied from the in-car power supply device 42 to each device such as a door drive device, a lighting device, a ventilation device, and an operation panel mounted on the car 7 as required, and a power storage device. Electric power is accumulated in 45. These operations are controlled by the car control device 44.

  The feeder line 16 is arranged vertically from the upper part to the lower part of the hoistway 1, so that the load due to the total weight of the feeder line 16 acts downward. This load is borne by the upper support portion 30 of the feeder line 16 and the intermediate support member 21. The support member 21 arranged in the middle of the feeder line 16 is inserted into the narrow gap between the leg portions 37a, 37b, and 37c of the iron core 37 of the power receiving device 34 by the grip portion 22 that grips the feeder line 16. Therefore, a large and strong structure cannot be obtained. Therefore, the support member 21 cannot bear much load due to its own weight of the power supply line 16, and most of the load of the power supply line 16 is borne by the upper support part 30.

  Here, in the support part 30 at the upper part of the power supply line 16, the end part 26 a of the high-strength material 26 of the power supply line 16 is wound around a latching part 31 such as a shaft or beam of the machine room 2, and the fastening material 32 Bound and fixed. The high-strength material 26 is made of a material having a sufficient strength against a tensile load such as an aramid fiber, and therefore can sufficiently bear the weight of the full length section of the feeder line 16.

  That is, the power supply line 16 has a structure in which a power supply conductor 25 and a high-strength material 26 are integrally covered with an insulating coating material 27, and the power supply line 16 including the conductor 25 and the insulating coating material 27 is formed. The entire weight is borne by the high-strength material 26, and the breakage and breakage can be reliably prevented.

  Further, since the high-strength material 26 is a non-conductive material such as an aramid fiber, no eddy current is generated in the high-strength material 26 even when a high-frequency current flows through the conductor 25. A decrease in power supply efficiency can be prevented.

  In the power supply line 16 of the above embodiment, two high-strength materials 26 are arranged along both sides of the conductor 25, but one or three or more high-strength materials 26 are arranged along the conductor 25. You may let them. It is also possible to have a structure in which the conductor 25 is covered with a high-strength material 26 of a nonconductive material, and the high-strength material 26 also serves as an insulating coating material for the conductor 25.

  As described above, in the first embodiment, even when a large load due to its own weight acts in the axial direction of the feeder line 16, the high-strength material 26 constituting the feeder line 16 bears the load and the feeder line. 16 can be reliably prevented from being broken or broken, and heat generation or reduction in power supply efficiency can be prevented.

  Each support member 21 that supports the middle of the feed line 16 is attached to a rail bracket 18 that supports the guide rail 14. That is, both the support member 21 and the guide rail 14 are attached to the common rail bracket 18. For this reason, the feeder line 16 is disposed at a predetermined position with respect to the guide rail 14, that is, at a position where the distance between the feeder line 16 and the guide rail 14 is substantially constant.

  The car 7 moves along the guide rail 14 via a guide device (not shown) engaged with the guide rail 14. For this reason, the power receiving device 34 provided in the car 7 moves while maintaining a predetermined position with respect to the guide rail 14.

  As described above, the distance between the iron core 37 of the power receiving device 34 and the feeder line 16 needs to be kept at a substantially constant interval regardless of the movement of the car 7, but the feeder line 16 has a predetermined distance with respect to the guide rail 14. The iron core 37 of the power receiving device 34 provided in the car 7 keeps the positional relationship and moves in a predetermined positional relationship with the guide rail 14, and accordingly, the car 7 moves along the distance between the feed line 16 and the iron core 37. Regardless of this, it can always be maintained at a substantially constant interval, and efficient power feeding can be achieved.

  In addition, each support member 21 that supports the power supply line 16 is formed of a non-conductive material such as a synthetic resin. Therefore, even if a high-frequency current flows through the power supply line 16, no eddy current is generated in the support member 21. . For this reason, it is possible to prevent heat generation and reduction in power supply efficiency.

  Next, a second embodiment will be described with reference to FIG. Note that the difference from the case of the first embodiment is only the configuration of the feeder line, and therefore, the duplicated description of other parts is omitted.

  As shown in FIG. 10, the power supply line 50 in the second embodiment includes a covered wire 53 formed by covering a power supply conductor 51 with an insulating covering material 52, and an aramid arranged along the covered wire 53. A high-strength material 54 such as a fiber, and a plurality of band-shaped winding members 55 as a coupling means in which the covered wire material 53 and the high-strength material 54 are bound and integrally joined. The winding members 55 are provided at regular intervals along the longitudinal direction of the coated wire 53 and the high-strength material 54. Further, each winding member 55 is made of a non-conductive material.

  Then, as in the case of the first embodiment, the high-strength material 54 is separated from the coated wire material 53 at the upper portion of the power supply line 50 and is wound around and fixed to the latching portion of the machine room. 53 conductors 51 are connected to a power supply device in the machine room, and a current having a predetermined frequency is supplied to the conductor 51 from the power supply device.

  The total weight of the power supply line 50 including the conductor 51, the insulating covering material 52, the high-strength material 54, and the fastening member 55 is borne by the high-strength material 54 having high tensile strength fixed to the latching portion of the machine room. Therefore, the durability of the power supply line 50 can be improved and the breakage and breakage can be reliably prevented over a long period of time.

Further, the high-strength material 54 and the winding member 55 are non-conductive materials. Therefore, even if a high-frequency current flows through the conductor 51, no eddy current is generated in the high-strength material 54 or the winding member 55. For this reason, it is possible to prevent heat generation and reduction in power supply efficiency.
Note that the winding member 55 constituting the coupling means is not limited to a band shape, and may be a wire shape, a string shape, a tape shape, or the like.

  As described above, also in the second embodiment, even when a large load due to its own weight acts in the axial direction of the feeder line 50, the high-strength material 54 constituting the feeder line 50 bears the load and breaks the feeder line 50. And breakage can be reliably prevented, and heat generation and reduction in power supply efficiency can be prevented.

1 is an overall configuration diagram of an elevator showing a first embodiment of the present invention. The front view seen from the arrow AA direction of FIG. The block diagram which shows the elevator car. The top view which shows the power receiving apparatus mounted in the passenger car. The perspective view which shows the power receiving apparatus mounted in the passenger car. Sectional drawing which shows the cross-section of the feeder line which supplies electric power to a passenger car. The top view which shows the arrangement structure of the receiving device and feeder of a passenger car. The perspective view which shows the support structure of the middle part of a feeder. The perspective view which shows the support structure of the upper part of a feeder. The perspective view which shows the electric power feeding line which concerns on 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Hoistway 2 ... Machine room 3 ... Hoisting machine 6 ... Main rope 7 ... Riding car 9 ... Control device 14 ... Guide rail 15 ... Power supply device 16 ... Feed line 16a ... Outward path part 16b ... Return path part 18 ... Rail bracket 21 DESCRIPTION OF SYMBOLS ... Support member 25 ... Conductor 26 ... High-strength material 27 ... Insulation coating material 30 ... Support part 34 ... Power receiving device 37 ... Iron core 38 ... Coil 42 ... Car power supply device 44 ... Car control device 45 ... Power storage device 50 ... Supply Electric wire 51 ... Conductor 52 ... Insulation coating material 53 ... Coated wire material 54 ... High-strength material 55 ... Winding member

Claims (10)

A power supply device installed in the building and outputting a current of a predetermined frequency, and a power supply line connected to the power supply device and arranged to extend from the upper part to the lower part in the hoistway where the elevator car moves up and down In the non-contact power feeding device of an elevator comprising a power receiving device that is installed in contact with the car in a non-contact manner with the feeding line,
The feeder line includes a conductor, a high-strength material disposed along the conductor, and a coupling unit that integrally couples the conductor and the high-strength material,
The high-strength material is fixed to a latching portion provided at the upper end of the building to support the power supply line, and the conductor is connected to the power supply device.
A contactless power feeding device for an elevator, wherein a current having a predetermined frequency is output from the power supply device to the conductor, and electric power is generated in a power receiving device of the car based on the current.   The non-contact power feeding device for an elevator according to claim 1, wherein the power feeding line coupling means is made of an insulating covering material integrally covering the outer periphery of the conductor and the high strength material.   The feeder connecting means is composed of a winding member such as a band, a wire, a string, or a tape wound around the outer circumference of the conductor and the high-strength material at predetermined intervals in the longitudinal direction. The elevator non-contact electric power feeder of Claim 1.   The non-contact power feeding device for an elevator according to claim 1, wherein the high-strength material of the power feeding line is made of a non-conductive material.   2. The contactless power feeding device for an elevator according to claim 1, wherein the power feed line is arranged adjacent to a guide rail installed in the hoistway.   The non-contact power feeding device for an elevator according to claim 1, wherein an intermediate portion of the power feeding line disposed in the hoistway is supported by a supporting means on a wall surface of the hoistway.   7. The contactless power feeding device for an elevator according to claim 6, wherein at least a part of the members constituting the support means is a member common to a member that supports the guide rail on a wall surface of a hoistway. .   8. The contactless power feeding device for an elevator according to claim 7, wherein the member constituting the support means is made of a non-conductive material.   9. The distance between the power supply line and the guide rail is maintained substantially constant by the power supply line being supported by the support means. Non-contact power feeding device for elevators. A power supply line for supplying electric power in a non-contact manner to a power receiving device of a car that is arranged from the upper part to the lower part in the hoistway of the building where the elevator car goes up and down,
A conductor to which a current of a predetermined frequency is supplied; a high-strength material disposed along the conductor; and a coupling means that integrally couples the conductor and the high-strength material. An elevator non-contact power feeding device feeder line, wherein an upper end portion is supported by the hoistway by being fixed to a latching portion provided in a building.

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