KR20110048836A - Lift having self electric power generation and charging means - Google Patents

Abstract

PURPOSE: A lift having self electric power generation and a charging unit are provided to operate a lift with a motor using the power of a battery by charging a restore power to the battery. CONSTITUTION: In a lift having self electric power generation and a charging unit, a battery(30) is loaded in the cage(12) a lift(10). A control panel(38) is loaded on the top side of cage of lift. A control panel has an inverter or a converter(34) therein. The cage of the lift is descended or ascended according to the mast through driving of the motor. The motor uses the power source of a battery. A power recovery unit(32) is installed within the control panel.

Description

Lift having self electric power generation and charging means

The present invention relates to a lift having a self-generating and charging means, more specifically, to exclude the power supply power supply cable included in the construction and industrial lifting and lifting lift (Lift), to prevent the self-generation and regenerative power during the running of the lift The present invention relates to a lift having self power generation and charging means, which can realize installation space saving, installation cost reduction, and the like of the lift by using the means for charging.

In general, a lift device is used in a construction site and various industrial sites, and can be used throughout the floor movement of materials and workers or vertical transfer of baggage.

As shown in FIG. 7, the construction lift 10 is different in size depending on the loading capacity, but has a box-shaped cage 12 made of a space for burning materials and labor, and a predetermined installation. Standing vertically to the desired height from the seat surface is largely divided into a mast (14, mast) which is the lifting and lowering path of the cage (12).

In addition, the lift 10 includes a motor 16 as a driving device, a braking device 18 to control the motor to stop the lift, and a fall prevention device and a safety ring as a kind of a double safety device for preventing a safety accident. Not shown), a device (not shown) for preventing overload of the driving device, a control panel and a power supply device 20 for controlling them are provided.

In addition, the mast 14 is provided with a rack 13 along a vertical length thereof, and the pinion 17 engaged with the rack 13 at an output shaft of the reducer 36 connected to the front end of the motor 16. This is connected integrally.

Accordingly, the pinion 17 which decelerates and rotates in accordance with the driving of the motor 16 moves along the rack 13, so that the lifting or lowering operation of the lift 10 is performed.

On the other hand, a power cable 22 for supplying power is connected to the control panel and the power supply device 20 installed in the lift 10, the power cable 22 is a power installed at a predetermined position on the ground One end is fixed to the feeder (not shown), the middle part of which is via a cable support roller 24 installed on the mast 14, and the other end is connected to the control panel of the lift 10 and the power supply device 20. Connected.

At this time, the movable pulley 26 having a weight is installed on the control panel of the lift 10 and the power cable 22 extending between the power supply device 20 and the cable support roller 24. As the mobile pulley 26 guiding the power cable 22 is rotated in response to the position of the lift that is lifted and lowered, the power cable 22 is not twisted or shaken.

Of course, since the movable pulley 26 may be shaken by wind or the like, by installing separate supporting ropes and guide rods (not shown) on both sides of the movable pulley, the power cable is fixed so as not to be shaken by wind or the like. Anti-shake and anti-twist of the can be further prevented.

Such a conventional lift is a facility device that can be useful and conveniently used in various construction sites and industrial sites, etc., but there is still a disconnection anxiety due to twisting or shaking as the power cable, which is a means for supplying power to the lift, is elongated. There are disadvantages such as increase in the number of components and installation cost by installing the power cable, and also difficult to connect the power cable between the lift and the ground power supply means there is a problem that installation workability is greatly reduced.

In addition, when the installation height of the building is increased, the length and weight of the power cable is increased by that much, thereby increasing the burden on the motor, and in recent years there is a problem that these problems are further aggravated as a lot of high-rise buildings are built.

The present invention has been made to solve the above-mentioned conventional problems, excluding the power supply means and power (circle) cable for supplying power to the existing lift, the lift battery and generator, and regenerative power unit Direct installation of the lift, self-power generation and charging of the battery at the same time as the lift operation is performed, and also to regenerate the regenerative power generated when the motor is not running at full load to the battery through the regenerative power unit Accordingly, the object of the present invention is to provide a lift having a self-generating and charging means, which enables the lift to be driven by a motor driven by using the power of a battery.

The present invention for achieving the above object is to mount a battery that acts as a power supply for the motor on the upper surface of the cage of the lift and directly mounted a control panel containing an inverter or converter, the drive of the motor using a battery power source of the lift The cage has a self-power generation and charging means characterized in that the cage is raised or lowered along the mast, and the power regenerative unit is installed in the control panel so that the inertial energy is generated from the motor to charge the battery when the lift is decelerated. To provide.

As a preferred embodiment of the present invention, the speed increaser and the generator is connected to the rack of the mast on the upper or lower surface of the cage for charging power generation for the battery when the cage is lowered.

In another preferred embodiment of the present invention, a collector having a collapsible dust collecting terminal is installed at one side of the cage, and a charger having a contact contact with the dust collecting terminal is installed at the ground surface.

Through the above problem solving means, the present invention provides the following effects.

According to the present invention, a battery, a generator, and a regenerative power unit are mounted directly on the lift, and the driving of the lift is performed by driving a motor using battery power together with the self-generating and battery charging operation. The supply device and the power cable can be excluded, thereby eliminating the need for connecting the power cable between the lift and the ground power supply means, thereby reducing the number of parts and reducing labor.

In addition, the existing power cable and its supporting parts are excluded from the mast and the lift, thereby realizing the installation space saving and the installation cost of the lift.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram showing an embodiment of a lift having a self-powering and charging means according to the present invention, Figure 2 is a schematic diagram showing another embodiment of a lift having a self-powering and charging means according to the present invention 3 is a schematic view showing another embodiment of a lift having a self-power and charging means according to the present invention, Figure 4 is a lift having a self-power and charging means according to the present invention when charging is stopped on the first floor. It is a block diagram explaining what is achieved.

The present invention excludes the existing power cable for power supply and its subsidiary materials, and directly install the battery, generator, and regenerative power unit in the lift, so that the self-generation and charging of the battery is made, using the charged battery power The main point is to make the lift run.

To this end, a battery 30, a power regenerative unit 32, an inverter or an inverter or a power supply to a motor other than the motor 16 as a driving device on the upper surface of the lift 10, that is, the upper surface of the cage 12, The converter 34 is installed directly.

That is, a control panel in which a battery 30 having a predetermined capacity is charged and discharged at one position adjacent to the motor 16, and a power regeneration unit 32 and an inverter or converter 34 may be built in the other position. 38 is installed.

At this time, the front end of the motor 16 is connected to the reducer 36 for reducing the rotational force of the motor at a predetermined speed, the rear end is connected to the braking device 18 for controlling the motor to stop the lift, The pinion 17 engaged with the rack 13 of the mast 14 is integrally connected to the output shaft of the reducer 36.

In particular, according to an embodiment of the present invention, as shown in FIG. 1, an increaser 39 and a generator 40 connected to the rack 13 of the mast 14 are installed on the bottom of the cage 12, or According to another embodiment of the present invention, as shown in FIG. 2, the speed increaser 39 and the generator 40 are installed on the upper surface of the cage 12 in such a manner as to be stacked with the motor 16.

In addition, according to another embodiment of the present invention while extending the frame of the cage 12 of the lift upwards, while supporting the drop prevention device 50 built in the upper side of the existing cage on the frame, that is, the roof of the cage It is installed above, and the gearbox 39 and the generator 40 is installed in the place where the fall prevention device 50 was installed.

Meanwhile, as another embodiment of the present invention, when the lift 10 stops on the first floor and there is no operation for a predetermined time, the battery 30 and one side of the cage 12 may be charged so that the battery can be charged. A current collector 42 connected to the power supply is installed, and a charger 46 connected to an external power cable 44 to charge through the current collector is disposed on the ground surface.

In more detail, the current collector 42 is connected to the battery 30 and can be charged through the conductive wire, the dust collector terminal 43 is installed to be folded by applying a hinge structure to one side of the cage 12 Thus, during charging, the dust collecting terminal 43 is spread out horizontally to be in contact with the contact point 48 of the charger 46, and is folded vertically when not in use, such as when the lift is running.

Here, the operation flow for the lift having a self-powered and charging means of the present invention made as described above is as follows.

5 is a charging block diagram illustrating charging performed during operation of a lift having self power generation and charging means according to the present invention, and FIG. 6 is a battery charge amount of a lift having self power generation and charging means according to the present invention. A block diagram illustrating the safety circuit operation according to the present invention.

When a switching signal for raising or lowering the lift 10 is generated, the battery 30 power is supplied to the motor 16 under the control of the control panel 38.

That is, the inverter or converter 34 rectifies and outputs the battery 30 power to DC, receives the smoothed DC voltage from the smoothing capacitor, and inverts it into AC to supply the motor 16 to the motor 16. The drive of is made.

On the other hand, when using the converter 34, the motor 16 may be adopted as a DC motor to control the motor to a DC voltage.

Accordingly, the pinion 17 connected to the output shaft of the reducer 36 moves along the rack 13 of the mast 14 while reducing the rotational force of the motor 16 to the predetermined speed in the reducer 36. 10) That is, the lifting or lowering of the cage 12 is made.

At this time, the speed increaser and the generator 40 is operated during the lifting or lowering operation of the lift 10, the speed is increased at the same time to increase in the speed increaser 39 meshed with the rack 13 of the mast 14 Furnace generator 40 is driven to produce electricity, the produced electricity is immediately charged to the battery 30.

As such, when the lift 10 moves up or down, the battery 30 is discharged to the motor 16 and the battery 30 is charged by the speed increaser and the generator 40.

In particular, when the driving and stopping of the lift 10 are repeated, the inertia travels using inertia after being accelerated at a constant speed for driving, or when the motor 16 functions as a generator when decelerating for stopping. Power is generated using inertial kinetic energy, and the regenerative power by the power generation is charged in the battery 30 through the power regenerative unit 32.

That is, the regenerative power generated by the motor 16 is converted into direct current through the power regenerative unit 32 and charged in the battery 30.

At this time, the control panel 38 detects the charge amount of the battery 30, the charge amount 80% or more and 79% ~ 50% or more can be operated, the weight detection operation of the overload limiter at 80% charge amount is 0V ~ 5V 79% ~ 50% of the charge amount is controlled so that the weight sensing operation of the overload limiter is performed at 0V ~ 2.5V, and less than 50% of the charge amount to be disabled.

In addition, in consideration of lift capacity, battery capacity, and the like, the percentage (%) of the battery charge amount and the overload may be variable.

On the other hand, when the lift 10 stops on the first floor as described above and stops on the first floor, the charger 46 unfolds horizontally with the dust collecting terminal 43 of the current collector 42 foldable mounted on the cage 12. By being in contact with the contact 48, the full charge to the battery can be easily made.

1 is a schematic diagram showing an embodiment of a lift having a self-generating and charging means according to the present invention;

2 is a schematic view showing another embodiment of a lift with self-generating and charging means in accordance with the present invention;

3 is a schematic view showing another embodiment of a lift with self-generating and charging means according to the invention,

Figure 4 is a configuration diagram illustrating that charging is performed when the lift having a self-power generation and charging means according to the present invention on the first floor,

5 is a charging block diagram illustrating that charging is performed during operation of a lift having self power and charging means according to the present invention;

6 is a block diagram illustrating the safety circuit operation according to the battery charge amount of the lift having a self-power and charging means according to the present invention;

7 is a schematic view showing a device for elevating and lowering an existing lift;

<Explanation of symbols for the main parts of the drawings>

10 lift 12 cage

13: rack 14: mast

16: motor 17: pinion

18: braking device 20: control panel and power supply device

22: power cable 24: cable support roller

26: mobile pulley 30: battery

32: power regenerative unit 34: inverter or converter

36: reducer 38: control panel

39: gearbox 40: generator

42: current collector 43: dust collection terminal

44: external power cable 46: charger

48: contact point 50: drop prevention device

Claims (3)

A battery 30 serving as a power supply to the motor 16 is mounted on the upper surface of the cage 12 of the lift 10, and a control panel 38 having an inverter or a converter 34 is directly mounted to mount the battery ( 30) The cage 12 of the lift 10 is raised or lowered along the mast 14 by driving the motor 16 using a power source, and the power regenerative unit 32 is installed in the control panel 38 to lift the lift. Lift having self-power and charging means, characterized in that the inertial energy is generated by the motor 16 at the time of deceleration of the (10) to charge the battery (30). The method according to claim 1, Self-generation and characterized in that the gearbox and the generator 40 is further installed on the top or bottom of the cage 12 is connected to the rack 13 of the mast 14 for charging power generation for the battery when the cage is raised and lowered Lift with filling means. The method according to claim 1, A collector 42 having a collapsible dust collecting terminal 43 is installed at one side of the cage 12, and a charger 46 having a contact point at which the dust collecting terminal 43 is contacted is installed on the ground surface. Lift having self-generation and charging means.

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