JP2010179971A - Elevator exclusively used for parcel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator exclusively used for a parcel capable of reducing running cost and solving a blackout problem by adopting an independent solar energy power generation system for a power source for control. <P>SOLUTION: The solar energy power generation system is used for the power source for controlling the elevator exclusively used for the parcel which elevates a car with a hoisting machine motor 17. The solar energy power generation system is provided with a solar battery 18, and a storage battery 19 for storing power generated by the solar battery 18 so as to charge regeneration energy generated at the hoisting machine motor 17 side to the battery 19. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention includes a small baggage elevator that moves a small baggage up and down with a car that moves up and down by a hoisting motor, and more specifically, a main power source using solar power generation, a power regeneration system, and a storage battery that stores these. It relates to a power supply system.

  The elevator for small parcels has a structure in which a vertical hoistway is provided in a building to be installed by construction work and is fixed to a wall surface or a lower surface (pit) with an anchor bolt or the like.

  In addition, there is also a unit type in which a self-supporting vertical unit is fixed to a building only at a necessary place without a surrounding hoistway.

  The elevator for small parcels as described above is designed such that the basket and the counterweight are suspended in a suspended state, and the basket is moved up and down by a hoisting machine motor. A power supply for control for operating the hoist motor and the door opening / closing operation is required.

  Conventionally, as a control power source for a small baggage elevator, a power supply system has been adopted in which a 3-phase or single-phase dedicated power source using commercial power is provided on the building side and drawn from there.

  By the way, in the conventional power supply system, it is necessary to have a dedicated power supply on the building side, and using commercial power will cause running costs depending on the amount used, and use an elevator during a power outage There was a drawback that it was not possible.

  In addition, when the building is a large-scale property, the construction schedule of the elevator is affected by the electrical construction schedule, and the construction plan is not flexible.

  By the way, in the point of effective use of energy, in the case of an elevator for small parcels, the hoisting motor becomes a generator during regenerative operation, which is operation in a direction not requiring the power of the hoisting motor. Although regenerative energy is generated, as shown in FIG. 3, the regenerative power of the hoist motor 1 is subjected to heat conversion processing by the regenerative resistor 3 via the frequency conversion control device 2, and naturally generated energy. The current situation is that it has not been effectively used.

  Therefore, in order to solve the above-mentioned problems, an object of the present invention is to adopt a stand-alone photovoltaic power generation system as a control power source for a small baggage lifting machine, thereby reducing running costs and causing problems due to power outages. It is another object of the present invention to provide an elevator for small parcels that can be installed regardless of the electrical work of the building and can effectively use regenerative energy.

  In order to solve the above-described problems, the present invention provides a solar battery equipped with a solar battery and a storage battery that stores electric power generated by the solar battery in a power supply for controlling a small baggage elevator that raises and lowers a basket by a hoisting motor. Using a photovoltaic system, regenerative energy generated on the hoist motor side is charged in a storage battery.

  The photovoltaic power generation system includes a power conversion device that converts a direct current from a solar battery and a storage battery into an alternating current to be a control power source, and regenerative energy generated on the hoist motor side is passed through the frequency conversion control device. The storage battery may be charged.

  Here, the solar cell is installed on the roof or wall of a building, the generated power is stored in a storage battery, and the storage battery is converted into a three-phase or single-phase AC commercial frequency power source necessary for an elevator through a power converter. It is used for the power of the hoist motor and the power for opening and closing the door.

  The regenerative energy described above is generated by the back electromotive force generated on the hoisting machine motor side by the braking force when the hoisting machine motor stops, in addition to the lowering energy of the cage and counterweight, and this is converted to frequency. The storage battery is charged as regenerative power through the device.

  According to the present invention, since a photovoltaic power generation system is used as a power source for controlling the elevator for small parcels, an environmentally-friendly parcel elevator for small parcels that does not depend on external energy can be realized, and the running cost during use can be reduced. Even during a power outage, it can be operated with power from the storage battery, and there is an advantage that it does not inconvenience the user.

  Also, with regard to elevator installation work, it is possible to install an elevator without waiting for the electrical work of the building. By reducing the elevator installation work period, it is possible to contribute to a reduction in the construction period of the building.

  Furthermore, the regenerative energy can be effectively used by charging the storage battery with regenerative electric power generated on the hoisting machine motor side.

Block diagram of a solar power generation system used for the elevator for small parcels of this invention (A) is a perspective view which shows the structure of a photovoltaic power generation system, (b) is a perspective view which shows the general structure of a lift only for small packages Block diagram showing a control power supply used in a conventional elevator for small packages

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

  FIG. 2 (b) shows a general structure of an elevator for small parcels, and a guide rail 13 for guiding the raising and lowering of the basket 11 and the counterweight 12 is provided by constructing a vertical hole hoistway in the building to be installed. Is fixed to the wall surface or the lower surface (pit) with an anchor bolt or the like, the basket 11 and the counterweight 12 are suspended so as to move up and down opposite to the main sheave 14, and the wall surface of each floor that stops the cage 11 is An opening / closing door 15 and an operation button 16 are provided, and the basket 11 is moved up and down by the control of the hoisting machine motor 17 interlocked with the main sheave 14, and at the same time, is stopped at a desired floor. .

  In addition, although the elevator for exclusive use of a small baggage was illustrated as being installed in a building as shown in the figure, even if there is no hoistway surrounding the periphery, it may be a self-supporting vertical unit structure, and only the necessary places are fixed to the building It may be a unit type that only does.

  FIG. 1 and FIG. 2 show a control power supply that employs an independent solar power generation system for operating the hoisting motor 17 and the door opening / closing operation in the elevator for small parcels as described above. A solar battery 18 installed on a roof or a wall, a storage battery 19 for storing electric power generated by the solar battery 18, and a power converter for converting DC power from the solar battery 18 and the storage battery 19 into AC power to be used as a control power source 20, the DC power generated by the solar battery 18 and the other power stored in the storage battery 19 are converted into a three-phase or single-phase AC commercial frequency power source necessary for the elevator by the power converter 20, for example, using a PM motor It is used for the power of the hoisting machine motor 17 and the control power for opening and closing the door 15.

  In addition to the descending energy of the car 11 and the counterweight 12, a counter electromotive force is generated on the hoisting motor 17 side by the braking force when the hoisting motor 17 is stopped. The storage battery 19 is charged as regenerative electric power via a conversion control device (inverter or the like) 21 so as to effectively use the regenerative energy.

  The elevator for small parcels according to the present invention is configured as described above. In the daytime, the electric power generated by the solar cell 18 is mainly used when the elevator is used, and the solar cell 18 is used when the elevator is not used. The generated electric power is charged in the storage battery 19, and the electric power stored in the storage battery 19 is used when the elevator is used at night.

  The electric power generated in the solar battery 18 and the electric power stored in the storage battery 19 are converted into a three-phase or single-phase AC commercial frequency power source necessary for the elevator using the power converter 20, and the power of the hoisting motor 17 Used to open and close the door. As a stand-alone system, we do not buy or sell electricity with electric power companies.

  Further, when using the elevator for small parcels, the back electromotive force generated on the hoisting motor 17 side charges the storage battery as regenerative power via the frequency conversion control device 21.

  In this way, the power necessary for controlling the elevator for small parcels is all covered by the power generated by the solar battery 18 and the regenerative power recovered from the hoisting motor 17 side, thereby making it an environmentally friendly type that does not depend on external energy. This is an elevator for small parcels, which not only reduces running costs by use, but also eliminates problems caused by power outages.

  In addition, there is no need to provide a dedicated external power source on the building side, and the installation work for the elevator for small parcels can be performed regardless of the electrical work of the building.

  Moreover, the conventional elevator for small parcels was only a building facility installed in a building. For example, in the combination of a unit type and the photovoltaic power generation system of the present invention, as a lift for a multi-storey building temporarily installed outdoors. In addition, there is a possibility that it can be reused wherever it is needed, regardless of the installation location.

DESCRIPTION OF SYMBOLS 11 Basket 12 Counterweight 13 Guide rail 14 Main sheave 15 Opening / closing door 16 Operation button 17 Hoisting machine motor 18 Solar cell 19 Storage battery 20 Power converter 21 Frequency conversion controller

Claims (2)

  A solar power generation system including a solar battery and a storage battery that stores electric power generated by the solar battery is used as a control power source for a small baggage elevator that raises and lowers the basket by the hoist motor, and is generated on the hoist motor side. A lift for small parcels that recharges regenerative energy in a storage battery.   The photovoltaic power generation system includes a power conversion device that converts a direct current from a solar battery and a storage battery into an alternating current to be a control power source, and regenerative energy generated on the hoist motor side is passed through the frequency conversion control device. The elevator for exclusive use of a small baggage according to claim 1, wherein the storage battery is charged.

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