WO2003072478A1

WO2003072478A1 - Power supply system

Info

Publication number: WO2003072478A1
Application number: PCT/JP2002/001803
Authority: WO
Inventors: Hideki Ayano; Hiroshi Nagase; Hiromi Inaba; Hirokazu Nagura; Toshifumi Yoshikawa; Ikuo Yamato
Original assignee: Hitachi, Ltd.
Priority date: 2002-02-27
Filing date: 2002-02-27
Publication date: 2003-09-04
Also published as: CN100352131C; JPWO2003072478A1; CN1612836A; JP4123153B2

Abstract

A power supply system comprising a power supply having a secondary cell and a charging/discharging controller for controlling the charging/discharging of the secondary cell, characterized in that the power supply is connected to a power system of a building in series or parallel, and the power supply or a part of it is installed inside an entrance frame of a landing of an elevator. Since the power supply or a part of it is installed inside an entrance frame of a landing of an elevator, effective use of the building is achieved. Further, since the power supply or a part of it is installed inside the entrance frame of the elevator landing, the maintenance work is facilitated. The lead-in cable of the power supply installed inside of the elevator landing is only the power supply line (and the signal line of a power sensor), thereby facilitating the installation work.

Description

Specification

Power supply system technical field

The present invention relates to a power supply system for the purpose of preventing a power outage (momentary power outage) in a factory or a building, conserving energy, peak cutting received power (leveling power), suppressing harmonics, or improving a power factor. Background art

As a first related art, there is Japanese Patent Application Laid-Open No. 2000-25858. In this publication, in a building or the like, a plurality of power storage units divided into a single power system are connected in parallel and operated synchronously by a common power controller, so that the power system peak cut-peak shift A power storage system for performing the power compensation operation of the present invention is described.

As a second conventional technique, there is JP-A-2001-240324. This publication describes an example in which a secondary battery in which a plurality of cells are connected in series is placed at any of the four corners of a hoistway, near a rail, or near a cable in a hoistway. Also, with this conventional technology, the regenerative power from the motor, which is the load of the elevator, can be recovered by the secondary battery provided with the charge / discharge control unit on the DC side of the inverter, thus saving energy. Is possible.

Further, as a third conventional technique, there is Japanese Patent Application Laid-Open No. H08-40665. Although this conventional technology is not a power supply system, the machine room is eliminated by installing a control panel, a drive device, etc. on the side of the door of the elevator, thereby eliminating the need for a machine room and saving space. It is described. As another conventional technology, UPS (uninterruptible power supply) is widely used for OA equipment to prevent momentary power failure. In addition, devices such as active filters and passive filters are widely used to suppress power supply harmonics and improve power factor. Disclosure of the invention

However, there is a description in the first prior art that the power storage unit is divided into a plurality of units and the plurality of divided units are distributed and arranged on floors of each floor of a building. However, no specific location for the effective use of building space is considered.

In the second prior art, since batteries are arranged in the hoistway, the work of replacing and installing the secondary batteries becomes extremely difficult. Rechargeable batteries may deteriorate if they are repeatedly charged and discharged, so if they are short, they need to be replaced every few years. In the case of this conventional technology, every time the secondary battery is replaced, it is necessary to enter the inside of the hoistway and replace the battery, and it is necessary to fix a battery weighing several kg to several tens of kg to the hoistway wall. It is difficult to work because there is. In addition, in Elebe overnight, where there are many users, there is a great demand to make the Eleave overnight stop time as short as possible, but this conventional technology inevitably prolongs the work time.

In the third prior art, the machine panel is placed in the same opening as the floor door, but not only the power line but also all of the control signal lines, sensor lines, information lines to the display, etc. It is necessary to connect the service drop from the machine panel to the car and motor in the hoistway, and it is not easy to install the cable at the same opening as the open door.

Also, the machine panel is large and it is difficult to install it in the same opening as the open door. In order to install the machine panel, the design of the opening may be impaired. Also, if the control device and the drive device (for example, main circuit) in the machine panel are installed separately, the line between the control device and the drive device will be long, and it will be susceptible to noise. Therefore, the control unit and the drive unit must be arranged close to each other, and the machine panel has a small degree of freedom in installation.

As for UPS, products for office automation equipment such as personal computers are small, but those used for building power supply are larger and require more installation space. This hinders effective use of the building. Active-filled equipment-Passive-filled equipment also requires installation space, which hinders the effective use of the star.

An object of the present invention is to realize instantaneous interruption prevention, energy saving, peak power of received power (power leveling), harmonic suppression, and power factor improvement without providing a power supply room in a factory or a building. Thus, it is an object of the present invention to provide a power supply system for realizing the effective use of a star, and a power supply system that is safe and easy to perform maintenance work and installation work is easy.

Therefore, one aspect of the present invention includes a power supply device including a secondary battery and a charge / discharge control device that controls charging / discharging of the secondary battery, and the power supply device is connected in series or parallel to a power system of a building. A power supply system characterized in that the power supply device or a part thereof is installed inside an entrance frame (hereinafter referred to as a three-way frame) of an elevator hall.

Efficient use of the building will be achieved by installing a power supply system or a part of the power supply system inside the three-way frame at the Yerebe overnight platform. In addition, maintenance work is facilitated by installing the unit on the three-sided frame of the elevator. In addition, the power supply line installed inside the three-sided frame of the elevator is only the power line (and the signal line of the power sensor), facilitating the installation work, and Good design. In addition, the power supply unit is smaller than the machine panel, and can be easily installed on the three-way frame, and the installation does not impair the design of the three-way frame. Also, even if the secondary battery and the charging / discharging device of the power supply device are installed separately, the influence of noise is small, and the secondary battery and the charging / discharging device can be installed separately, so the degree of freedom in installing the power supply device is large. . BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a configuration diagram showing a first embodiment of the present invention. FIG. 2 is a schematic diagram of the first embodiment of the present invention. FIG. 3 is a configuration diagram showing another example 1 in the first embodiment of the present invention. FIG. 4 is a configuration diagram showing another example 2 in the first embodiment of the present invention. FIG. 5 is a configuration diagram showing another example 3 in the first embodiment of the present invention. FIG. 6 is a diagram showing an example in which a part of a power supply device is mounted in a three-way frame. FIG. 7 is a diagram showing another example in which a part of the power supply device is mounted in a three-way frame. FIG. 8 is a diagram of a configuration in which a part of the power supply device is united. FIG. 9 is a diagram showing a configuration of a connection portion between the unit shown in FIG. 8 and a frame-side electrode terminal. FIG. 10 is a top view of FIG. FIG. 11 is a diagram showing another configuration example in which a part of the power supply device is unitized. FIG. 12 is an enlarged view of the metal conductive plate 13 of FIG. FIG. 13 is a diagram of a configuration of a connection portion between the unit of FIG. 11 and the frame-side electrode terminal as viewed from above. FIG. 14 is a rear view of the unit of FIG. FIG. 15 is a diagram showing another example 2 of the connection portion between the power supply unit and the frame-side electrode terminal. FIG. 16 is a top view of FIG. FIG. 17 is a rear view of the unit of FIG. FIG. 18 shows an example in which a three-sided frame is fan-shaped and spreads out toward the floor with respect to the door portion. FIG. 19 is a top view of FIG. Figure 20 uses a three-sided frame cover that covers the power supply unit. This is an example. FIG. 21 is a configuration diagram when the power supply system of the present invention is applied to an elevator. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of a power supply system according to the present invention will be described with reference to the drawings. FIG. 1 shows a configuration of a power supply system according to a first embodiment of the present invention. Power supply 1, Building load 2, Door 3, Three-way frame 4, Power supply 5, Three-way frame door 6, Power detector 7, Power shut-off device 8, Supervisory monitor for manager's office 9 1, Monitor for remote monitoring 9 It consists of two. The power supply device 5 includes a charge / discharge device 51 and a secondary battery 52.

Power supply 1 is a commercial power supply and supplies power to building load 2. Generally, the power rate of commercial power is determined based on the contracted power in addition to the power consumption. The contract power stipulates the maximum value of the power used, and when it exceeds it, the power is usually cut off by a breaker or the like. In other words, in order to prevent power interruption, it is necessary to determine the contracted power in accordance with rare transient power. In this way, an increase in electricity costs is inevitable because contract power is determined according to transitional power. For this reason, power is stored in the secondary battery during times when power consumption is low, and during transient peaks of power, the stored power is discharged to avoid interruption of power by the breaker. The technology of peak cut (power leveling) is being introduced. However, the installation of devices for charging and discharging secondary batteries requires a considerable amount of space, which hinders the effective use of buildings. At present, power supply rooms are installed in large-scale buildings, but in small and medium-sized buildings, the effective space is reduced, which hinders the introduction of the above technologies. Also, when newly installing in an existing building, Reduction of the effective space is a major issue.

The three-way frame 4 is a frame attached to the wall around the door 3 of the elevator. In the present embodiment, a secondary battery 52 is installed inside the three-way frame 4 to effectively use the building space.

In this configuration, the system power is monitored by the power detector 7, and the charge / discharge device 51 is operated as a charging device for the secondary battery 52 when the power is low. When the load 2 requires more power than the contract power, the charging / discharging device 51 is operated as a discharging device for the secondary battery 52. At this time, by setting the location of the secondary battery inside the three-way frame 4, the demand for both peak cut and effective use of building space is satisfied. In addition, if the control device for the elevator is installed in a three-sided frame, the rear side of the stored device opens and closes each time the elevator door is operated, so the control device and the lead wire of the control device are arranged so that they do not touch each other. Must. Therefore, there is a difficulty in the freedom of the layout of the control device and drop lines for the elevator. This is because the elevator control device needs to connect not only the power supply line but also all the control signal lines, sensor lines, information lines to the display, etc. to the cars and motors in the hoistway. It is. However, in this embodiment, the power supply device is installed in the three-sided frame, and the power supply line of this power supply device is only the power supply line (and the signal line of the power detector). Therefore, the power supply has a degree of freedom for installation in a three-way frame.

Secondary batteries 52 are assumed to be lead batteries, nickel-metal hydride batteries, lithium-ion batteries, fuel cells, and storage capacitors. These batteries require replacement and replenishment due to aging. Therefore, by providing the three-sided frame door 6 on the three-sided frame 4, the battery can be easily replaced on the floor. Further, the opening and closing of the three-way frame door 6 is detected by a sensor or the like, and the three-way frame When the door 6 is open, the operation of the charging / discharging device is stopped to shut off the power system and the rechargeable battery 52, and the door 6 is opened to the monitoring monitor for the management room or the remote monitoring monitor of the maintenance company. To show that This has the effect of improving safety.

In the first embodiment, only the secondary battery 52, which is a part of the power supply device 5, is installed inside the three-way frame 4.However, the entire power supply device 5 or the power detector 7 and the like are installed. It does not matter. Further, in the first embodiment, the power supply device 5 is described as a device for peak cut, but may be an uninterruptible power supply (UPS), for example. In this case, when a power outage occurs, the power cutoff device 8 is shut off, and the power stored in the secondary battery 52 is discharged to the system by the charge / discharge device 51. The reason for shutting off the power cutoff device 8 is to prevent the power of the secondary battery 52 from flowing back to the power supply 1 side. Further, the power supply device 5 may be an energy-saving energy system that absorbs the regenerative power generated by the load 2 and reuses it. In this case, when the load 2 is regenerated, the charging / discharging device 51 charges the secondary battery 52 as a charger. Furthermore, the power supply device 5 is an active filter or a passive filter, and may be a system for suppressing harmonics and improving the power factor. In this case, the inside of the three-sided frame 4 includes at least a capacitor or the like that needs to be replaced.

In the configuration of the first embodiment, the power supply device 5 is arranged near the power receiving point of the building (on the power supply side than the branch point of the load 2). With this configuration, the power supply is effective for all loads. In the configuration of the first embodiment, a monitor (not shown) may be provided inside the three-sided frame 4 to display charge / discharge information, deterioration information, and the like of the secondary battery 52. This has the effect of improving workability. FIG. 2 is a configuration diagram showing a schematic diagram of the first embodiment of FIG. The connection point between the power system and the power supply 5 is not shown in detail, but is connected using a connecting transformer or the like. In this embodiment, the connection transformer is also regarded as a part of the power supply device 5. From FIG. 2, it can be seen that the power supply 5 is connected in parallel to the power system. By connecting in parallel in this way, disconnection from the power system by opening the shut-off switch 53 during maintenance of the power supply 5 or when the three-way frame door 6 shown in Fig. 1 is opened Can be. In other words, safety at the time of maintenance and the like can be improved, and the load can be prevented from being adversely affected by a power failure or the like.

FIG. 3 is a configuration diagram showing another example 1 of the first embodiment. This example is an example in which the power supply device 5 is connected in series to a power system. When performing maintenance in this connection, it is necessary to shut off the power by the power supply unit 5 itself so that the worker is not shocked by the voltage of the power system. In this case, the load 2 is in a power failure state. However, connecting in series eliminates the step of, for example, matching the phase with the power system when discharging the power of the secondary battery, and thus has the advantage of simplifying the device.

FIG. 4 is a configuration diagram showing another example 2 of the first embodiment, in which secondary batteries 52 are installed on a plurality of floors. In addition, when focusing on one floor, the secondary battery 52 is installed inside the three-sided frame 4 on both sides of the door 3. With this configuration, the space can be effectively used. When the secondary batteries 2 are installed in the three-sided frame on both sides of the door 3 as shown in Fig. 4, the left and right batteries are connected on either floor as shown on the upper floor in the figure. Is also good. In this case, the connection work is facilitated by providing a connection line in the upper side of the three-way frame 4. In addition, by inverting the polarities of the left and right batteries, there is also an effect that the connecting wire can be shortened. The inside of the three-way frame 4 in Fig. 4 What is installed in the power supply device 5 other than the secondary battery 52, at least one part of the power supply device 5 described in the first embodiment, the power detector 7, or the power cutoff switch 8, etc. Needless to say, it's good.

FIG. 5 is a configuration diagram showing another example 3 of the first embodiment. This configuration is an example in which the power supply devices 5 are respectively installed in the systems branched from the load branch point of the main power system. In Fig. 5, it is assumed that there is a branch point for each floor. With this configuration, the capacity of the secondary battery 52 can be adjusted when the size of the load connected to the branched system varies, so that the secondary battery 52 can be efficiently distributed. In FIG. 5, the power supply units 5 are installed in all the branched systems, but they may be installed only in typical systems (systems that do not want to be powered down). Further, in FIG. 5, the power supply device 5 is connected in series to the branched system, but it goes without saying that it may be connected in parallel.

FIG. 6 is a diagram showing an example of a case where a part of a power supply unit is mounted in a three-way frame. In FIG. 6, a secondary battery is shown as an example of a part of the power supply device. Since the weight of the rechargeable battery 52 ranges from several kg to several tens of kg, it is difficult to directly transport the battery. Therefore, the secondary battery 52 is mounted on the battery-equipped trolley 10, and the battery-equipped trolley 10 is configured to be housed inside the three-sided frame 4. This makes it easy to carry and install. Further, in FIG. 6, the battery mounting cart 7 is housed in the depth d of the three-way frame 4, but if the width w of the three-way frame 4 is wide, it may be inserted here. That is, the configuration described above can be realized by configuring the width of the battery mounting cart 10 to be smaller than one of the depth d or the width w of the three-sided frame 4. Also, by making the handle part of the battery loading cart 10 foldable when stored, compactness can be achieved. And contribute to space saving.

FIG. 7 is another diagram showing a configuration example of a portion where the power supply unit 5A is mounted. In FIG. 7, at least one part of the power supply unit 5 is divided and mounted on the power supply unit 5A. In FIG. 7, a secondary battery is described as an example of a part of the power supply device. FIG. 8 is a configuration diagram of the power supply unit 5A. Inside the power supply unit 5A, cells are connected in series, and the power supply unit side electrode terminals 11 are attached to both ends thereof. This configuration allows partial replacement (replacement of only one unit) instead of replacing the entire battery when the secondary battery 2 is defective, which is extremely effective in saving resources. Is big. Furthermore, since the power supply unit 5A can be reduced in weight as compared with the case where the power supply unit 5A is transported as a single unit, the device can be transported more easily. In addition, for example, in the case of lead batteries, the direction of the top and bottom is fixed, and tilting or falling down may cause problems. For this reason, by adopting a configuration in which the batteries are divided as in the power supply unit 5A, the batteries are not tilted due to restrictions on the height space of the transport vehicle even during transportation. FIG. 9 is a diagram showing a configuration of a connection portion between the power supply unit 5A and the frame-side electrode terminal 12, and FIG. 10 is a top view of FIG. A frame-side electrode terminal 12 made of a conductive material is installed inside the three-sided frame 4, and the frame-side electrode terminal 12 is a frame-side electrode terminal for another power supply unit adjacent vertically or shown in the drawing. Connected to the charging / discharging device. When the power supply unit 5A was inserted into the three-way frame 4, the power supply unit-side electrode terminals 11 and the frame-side electrode terminals 12 were connected, and all the cells of the secondary batteries 52 were connected in series. become. Also, as shown in Fig. 10, the frame-side electrode terminals 12 with the structure sandwiching the power supply unit-unit electrode terminals 11 are installed inside the three-sided frame 4 so that the screws can be tightened during installation. This is unnecessary, and is effective in reducing work time and labor. In FIG. 9, the power supply unit-side electrode terminal 11 has a convex shape, and the frame-side electrode terminal 12 has a structure sandwiching the power supply unit-side electrode terminal 11. The terminal 12 may have a convex shape and the power supply unit-side electrode terminal 11 may sandwich the frame-side electrode terminal 12.

FIG. 11 is a diagram showing another example of a configuration in which the power supply unit is united, and the effects will be described with reference to FIGS. 12 to 14. FIG. In the configuration shown in FIG. 11, a metal conductive plate portion 13 is provided inside the power supply unit 5A. FIG. 12 is an enlarged view of the metal conductive plate portion 13. As shown in FIG. 12, there are two metal conductive plates 54 and they are not in contact with each other. Therefore, there is no danger of electric shock even if both power supply unit unit-side electrode terminals 11 in FIG. 11 are accidentally touched at the same time. FIG. 13 shows an example of connection to the frame-side electrode terminal 12 inside the three-sided frame, and FIG. 14 shows a rear view of the unit of FIG. 11 respectively. FIG. 13 is a view of the configuration of the connection portion with the unit terminal on the unit frame side in FIG. 11 as viewed from above. When the power supply unit 5A and the frame-side electrode terminals 12 are connected, the conductor terminals 56 are inserted into the conductor terminal insertion holes 55, and the metal conductor plates 54 are short-circuited. You. As a result, a potential is generated between the power supply unit unit-side electrode terminals 11 and acts as a battery. This configuration has the effect of improving safety. FIG. 15 is a diagram showing another example of a connection portion between the power supply unit and the frame-side electrode terminal. FIG. 16 is a top view of FIG. 15, and FIG. It is a rear view of the power supply unit 5B shown in the figure. A frame-side electrode terminal 12 B is provided inside the three-sided frame 4, and the frame-side electrode terminal 12 B is a convex contact having a configuration using a spring. Similarly to the configuration shown in FIG. 13, the frame-side electrode terminal 12 B is connected to a terminal inside the frame for another power supply unit adjacent vertically or a charging / discharging device (not shown). . Power supply unit When 5B is inserted into the three-way frame 4, the concave terminal 11B on the power supply unit side and the frame-side electrode terminal 12B come into contact, and the control panel and the secondary battery are connected. This configuration also eliminates the need for screw tightening during installation, which is effective in reducing work time and labor. Furthermore, as is clear from FIGS. 16 and 17, the use of the concave terminal 11 B eliminates the need for exposing the electrical contact point to the surface, and has the effect of preventing electric shock. The main point of the structure shown in Figs. 9, 13 and 15 is to provide electrical contacts within the three-way frame 4 that do not require screw tightening. It goes without saying that various modifications can be made.

FIG. 18 is an example in which a three-sided frame is fan-shaped and spreads out toward the floor with respect to the door portion. FIG. 19 is a top view of FIG. The shape of the three-sided frame in FIG. 18 is generally widely used. Also, from a design standpoint, it is desirable that the shape of the three-sided frame be symmetrical from the center of the door, as shown in Fig. 18. However, in the case of the shape shown in FIG. 18, the space in the three-sided frame is limited to the hatched portion in FIG. Therefore, for example, if a part of the power supply to be inserted into the space in the three-sided frame is a secondary battery, the secondary battery has a structure in which cells are connected in series, By arranging them in such a way that they are aligned in the shaded area in Fig. 19, there is an effect that the aesthetic appearance is not impaired. In this case, the shape of the power supply unit shown in Fig. 8, Fig. 11, and Fig. 16 must also be adjusted to the shape of the three-sided frame. Further, as shown in FIG. 19, the space inside the three-way frame 4 and the hoistway may be completely separated. This configuration eliminates the risk of accidentally dropping screws or the like into the hoistway, and is effective in improving safety.

FIG. 20 is an example in which a three-sided frame lid 61 that covers the power supply device is used instead of the three-sided frame door of the first embodiment. By using a lid instead of a door, This has the effect of eliminating hands and improving the appearance. Alternatively, a configuration may be adopted in which a part of the power supply device is mounted on the three-sided frame lid 61 and connected to and installed on the three-sided frame. This configuration is also effective in improving workability.

FIG. 21 is a configuration diagram when the power supply system of the present invention is applied to an elevator. In this configuration, for example, when a power failure occurs, the button 14 and the display device 15 are displayed with the secondary battery 52 as an emergency power source, and the inverter 17 and the motor 18 are driven. In this case, the rectifier 16 needs to be in a state where power does not flow from the DC side to the power supply 1 side. (If the rectifier 16 is a diode rectifier, power will not flow from the DC side to the power supply side without any action.) Also, during normal operation, the regenerative energy of the motor 18 is transferred to the secondary battery. By collecting it in 52, it is extremely effective for energy saving energy. In general, the construction of the building wall is within the scope of the construction company, but the three-way frame 4 can be modified by a manufacturer.

Claims

The scope of the claims

1. A power supply device having a secondary battery and a charge / discharge device for charging / discharging the secondary battery is provided. The power supply device is connected in series or parallel to a power system of a building, and the power supply device or a part thereof is lifted. A power supply system installed inside the entrance frame of the overnight platform.

2. A power supply device having a secondary battery and a charging / discharging device for charging / discharging the secondary battery is provided. The power supply device is connected in series or parallel to a power system of a building. A power supply system that is installed inside the entrance frame of the Elebe overnight platform.

3. A power supply unit connected in series or parallel to the power system of the building and having a secondary battery and a charging / discharging device for charging / discharging the secondary battery, and a power detector for detecting power of the power system. A power supply system, wherein the power supply device and the power detector are installed inside an entrance frame of the elevator hall.

4. In a power supply system that has a power supply unit consisting of devices or components for the purpose of preventing power failures and instantaneous power failures, saving energy, cutting power receiving power peaks, suppressing harmonics, or improving power factor,

The power supply system, wherein the power supply device is connected in series or parallel to a power system of a building, and the power supply device or a part thereof is installed inside an entrance frame of an elevator hall.

5. In Claims 1, 2, 3, or 4,

A power supply system, wherein a maintenance door or a lid for the power supply device is attached to a landing side of an entrance frame of the elevator hall.

6. In claim 1,

The secondary battery is a lead battery, nickel metal hydride battery, lithium ion battery, A power supply system comprising a fuel cell or a storage capacitor.

7. In Claim 4,

A part of the power supply device installed at the entrance frame of the elevator hall is a secondary battery, a charge / discharge control device that controls charging / discharging of the secondary battery, or a power detector that detects a power state of a system. Or a shutoff device for shutting off electric power, and wherein the secondary battery is a lead battery, a nickel-metal hydride battery, a lithium ion battery, a fuel cell, or a storage capacitor.

8. In Claim 1 or 4,

The power supply unit is a component of an uninterruptible power supply (UPS), a component of an energy saving system that absorbs regenerated power generated by a load in a building, and reuses it, a component of an active filter or a passive filter. Characteristic power supply system.

9. In Claim 2,

A sensor for detecting opening and closing of the door or the lid, and when detecting the open state of the door or the lid, a sensor is provided between the power system and the power supply unit provided inside the entrance frame of the elevator hall. A source system characterized by being electrically disconnected.

10. The power supply system according to claim 2,

A sensor for detecting the opening or closing of the door or lid, and a means for leaving the information on a monitor in a management room of a building or a monitor for remote monitoring of a maintenance company when the door or lid is detected in an open state. Power supply system characterized by comprising

1 1. In Claim 1 or 4,

A power supply system, wherein the power supply device is arranged near a power receiving point of a building.

1 2. In Claim 2 or 4,

Means for collecting information on the power supply unit; A power supply system comprising: a monitor that displays information on the power supply device based on the collected information.

1 3. In claim 1 or 4,

A power supply system, wherein a power supply device or a part thereof is divided and arranged inside an entrance frame of an elevator at a plurality of floors.

1 4. In Claim 1 or 4,

A power supply system characterized in that a power supply or a part thereof is installed inside the entrance frame of the elevator at both sides of the door.

1 5. In Claim 1 or 4,

A power supply system, wherein the power supply device is installed in each of branch systems after a load branch point of a main power system.

1 6. In Claim 1 or ⁴ ,

The power supply device installed inside the entrance frame of the Elevator overnight hall is mounted on a bogie. A power supply system characterized by a storage structure.

1 7. In claim 2,

The power supply system, wherein the secondary battery includes a plurality of cells, and has a unit configuration in which the plurality of cells are divided into at least two or more cells.

1 8 · In Claim 17

A convex terminal electrically connected to the end of the secondary battery in the unit is provided outside the unit, and the terminal is sandwiched in the entrance frame of the elevator hall. A power supply system having terminals of various shapes. 19. Battery with a secondary battery and a charging / discharging device for charging / discharging this secondary battery The power supply device is connected in series or parallel to the electric power system of the elevator, and the power supply device or a part thereof is installed inside the entrance frame of the elevator elevator. Power system.

20. A power supply device having a secondary battery and a charge / discharge device for charging / discharging the secondary battery is provided. The power supply device is connected in series or parallel to the power system of the elevator, and The secondary battery was installed inside the entrance frame of the elevator and connected to the main circuit of the elevator, the button device of the elevator and the display of the elevator. Characteristic power supply system.