JP2003335481A - Emergency light device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an emergency light device for an elevator capable of keeping the inside of a car at the specified illuminance with lighting by an auxiliary power supply of minor capacity in case of power failure. <P>SOLUTION: The emergency light device of the elevator includes a power failure sensing mechanism 9 which senses eventual power failure whereby the power supplied to a lighting system 2 to illuminate inside an elevator car 1 is shut off, and thereupon an emergency light 6 in the car 1 is lighted by an auxiliary power supply 8 consisting of a secondary battery to keep the inside of the car at the specified illuminance, wherein the emergency light 6 is composed of a plurality of light emitting diodes 13, and a diffusion lens 18 is installed in the light emission part 13a of each light emitting diode 13, and in the event of power failure, the light from each light emitting diode 13 is passed through the lens 18 and diffused in the car 1, and thereby the inside of the car 1 is kept at the specified illuminance. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency light device that switches to a normal lighting device to illuminate the inside of an elevator car during a power failure.

[0002]

2. Description of the Related Art FIG. 9 shows the structure of an elevator car 1. A lighting device 2 is provided on the ceiling of the car 1. This lighting device 2 is provided with a lighting lamp 4 inside a shade 3. In normal times, the illumination lamp 4 receives power from the normal power source 5 on the building side and lights up to illuminate the inside of the car 1 with appropriate and comfortable brightness.

The car 1 is also provided with an emergency light 6. The emergency light 6 is attached to, for example, a mounting portion 7 provided on a lower surface portion of the shade 3 in the lighting device 2. The emergency light 6 is connected to an auxiliary power source 8 such as a secondary battery provided in the car 1 directly or via a transformer,
A switch mechanism (not shown) in the energizing circuit during normal operation
Is held open and turned off.

When a power failure occurs, the car 1 is stopped and the power supply to the lighting device 2 is cut off. The occurrence of this power failure is detected by the power failure detection mechanism 9. Then, the switch mechanism operates in synchronization with the power failure detection operation by the power failure detection mechanism 9, the emergency light 6 is energized by the auxiliary power source 8 and lights up, and the interior of the car 1 is replaced by the illumination lamp 4 by the emergency light 6. It is illuminated and the predetermined illuminance is secured.

Conventionally, as such an emergency light 6, a highly versatile light bulb type lamp has been used. Also,
The auxiliary power source 8 is charged or replaced with a new one at regular intervals.

[0006]

However, when the emergency light 6 is a light bulb type lamp, in order to satisfy the predetermined lighting duration and floor illuminance in the car defined by the Building Standards Act, an auxiliary power supply is required. 8 requires a plurality of large-capacity secondary batteries and normal-capacity secondary batteries, which not only results in high cost, but also large size and heavy weight.
It is necessary to secure a large space for installation in the car 1, and the total weight of the car 1 is increased. As a result, the weight of the counterweight is also increased, and the rating of the hoisting machine for raising and lowering the car 1 is increased. Will be needed. The present invention has been made in view of such a point, and an object thereof is to provide an elevator that can be lit with a small-capacity auxiliary power source in the event of a power failure to maintain the illuminance of a predetermined brightness in the car. It is to provide an emergency light device.

[0007]

According to the invention of claim 1, when the power supply to the lighting device for illuminating the inside of the elevator car is interrupted by a power failure, this is detected by a power failure detection mechanism, and this detection is performed. In an emergency light device for an elevator that keeps the interior of the car at a predetermined illuminance by lighting an emergency light in the car according to the above, the emergency light is configured by using a light emitting diode as a light source, and the light generated by lighting the light emitting diode is used. Is radiated into the car through a light diffusing member. According to the invention of claim 2, when the power supply to the lighting device for illuminating the inside of the car of the elevator is interrupted by a power failure, this is detected by the power failure detection mechanism, and the emergency light in the car room is detected according to the detection. In an emergency light device for an elevator, which is lit by an auxiliary power source to maintain a predetermined illuminance in a car, the emergency light is configured with a plurality of light emitting diodes as a light source, and at least one of the plurality of light emitting diodes is provided with a light emitting portion. It is characterized in that it is directly exposed to the inside of the car, a light diffusing member is provided in the light emitting portion of the remaining light emitting diodes, and the inside of the car is kept at a predetermined illuminance by the light of these light emitting diodes. A third aspect of the present invention is characterized in that the emergency light is integrally provided with a surveillance camera for monitoring the interior of the car, and the surveillance camera is driven via the auxiliary power supply during a power failure.

The invention according to claim 4 is characterized in that the emergency light is oscillatably supported and can be oscillated by a command from the outside of the car.

According to a fifth aspect of the present invention, the car is provided with a solar current collecting panel that collects sunlight outside the car to generate electricity, and the solar current collecting panel charges the auxiliary power source. It is characterized by being connected as much as possible.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. The parts corresponding to those of the conventional structure are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in FIG. 1, a lighting device 2 is provided on the ceiling of the car 1 as in the conventional case, and a mounting portion 7 provided on a shade 3 of the lighting device 2 according to the first embodiment of the present invention. An emergency light 11 is provided.

As shown in FIG. 2, the emergency light 11 is provided with a plurality of LEDs (light emitting diodes) 13 as light sources, for example, four in a cylindrical case 12. The case 12 has a taper shape in which the upper end side is reduced in diameter, and a base 14 and a connection terminal 15 are provided on the upper end thereof, and the LED 13 is connected to the base 14 and the connection terminal 15 via lead wires 16.

The lower surface 12a of the case 12 has a substantially spherical shape which is convex downward, and the LEDs 13 are mounted on the lower surface 12a so as to be uniformly dispersed. Each LED
The light emitting portion 13a on the lower surface of 13 is exposed on the lower surface side of the case 12, and a diffusion lens 18 as a light diffusing member is attached to each light emitting portion 13a.

The emergency light 11 constructed as described above is attached to the attachment portion 7 in place of the conventional emergency light, and is connected to the auxiliary power source 8 provided in the car 1 and formed of a secondary battery. Since this emergency light 11 has a base 14, it can be attached to the mounting portion 7 through the base 14 as it is, instead of the conventional light bulb type emergency light.

In normal times, the illumination lamp 4 of the illumination device 2 is energized and turned on by the building-side normal power source 5, and the interior of the car 1 is illuminated to a predetermined brightness by the illumination lamp 4.

On the other hand, when a power failure occurs and the power supply to the illumination lamp 4 is cut off, this is detected by the power failure detection mechanism 9, and the power from the auxiliary power supply 8 is supplied to the emergency light 6 in conjunction with the detection operation. As a result, each LED 13
Lights up, and light is emitted from each light emitting unit 13a.

The light emitted from the light emitting portion 13a of the LED 13 has high directivity, but the light emitting portion 13a has a diffusing lens 18 in it.
Is provided, the light is diffused when passing through the diffusing lens 18, and spreads over almost the entire floor surface of the car 1. The emergency light 11 is provided with a plurality of LEDs 13
D13 is turned on at the same time and almost the entire floor surface of the car 1 is illuminated, so that the required illuminance at the time of power failure specified by the Building Standards Act is obtained. Since the LED 13 consumes less power, the auxiliary power source 8 as its power source has a large capacity, and the secondary battery having a small capacity is used for a predetermined lighting duration without using a configuration in which a plurality of secondary batteries are used. Time and illuminance can be secured.

Further, since it is not necessary to make the auxiliary power source 8 have a large capacity or to use a plurality of secondary batteries,
The cost can be kept low, and the shape and size of the car 1 do not become heavy. Therefore, a wide space for installing the car 1 is not secured, and the total weight of the car 1 does not increase. Further, since the weight of the car 1 does not increase, it is not necessary to increase the weight of the counterweight, and thus it is not necessary to increase the rating of the hoist for driving the car 1 up and down. FIG. 3 shows a second embodiment,
In this embodiment, the emergency light 11 includes a plurality of (four) LEs.
It has a D13, one of which is an LED 13 '
In, the light emitting portion 13a is directly exposed to the lower surface side of the case 12, and the diffusion lens 18 is attached only to the light emitting portions 13a of the remaining LEDs 13.

In the LED 13 'whose light emitting portion 13a is directly exposed on the lower surface side of the cover 17, the light emitting portion 1
3a is directed to a specific local portion of the car 1, for example, an emergency button, an external contact button, an intercom or the like arranged on the operation panel of the car 1.

In the case of this embodiment, the emergency light 11 is energized by the auxiliary power supply (8) at the time of power failure, and each LED 1
3,13 'lights up. Then, the light generated by turning on the LED 13 including the diffusion lens 18 is diffused at an angle of α so as to spread to almost the entire floor surface of the car (1) through the diffusion lens 18, and this light almost directs the floor surface of the car (1). The whole is illuminated with the required brightness.

Further, in the LED 13 'in which the light emitting portion 13a is directly exposed on the lower surface side of the cover 17, the light with high directivity goes straight from the light emitting portion 13a with little diffusion, and the emergency button in the car (1), The area where external contact buttons, intercoms, etc. are arranged is illuminated particularly brightly.

Therefore, the passenger in the car (1) can quickly confirm the positions of the emergency button, the external contact button, the intercom, etc., and easily operate them, and achieve the contact with the outside promptly. You can

FIG. 4 shows a third embodiment. In this embodiment, a surveillance camera 20 is provided in the case 12 of the emergency light 11. The surveillance camera 20 is provided on the central shaft portion inside the case 12, and is supported so that the lower portion thereof slightly projects from the lower surface 12a of the case 12 to the lower side thereof.

Then, so as to surround the surveillance camera 20,
A plurality of LEDs 13 are evenly provided inside the lower surface 12a of the case 12, and the light emitting portions 13a of the LEDs 13 are exposed to the lower surface side of the case 12 and the light emitting portions 13 are
A diffusion lens 18 is attached to each a. The normal power source (5) on the building side for the surveillance camera 20 in normal times
Electric power is supplied from the car, the surveillance camera 20 is driven by the electric power, the inside of the car (1) is sequentially photographed, and the image data is sent to, for example, a building management center and monitored.

In the event of a power failure, an emergency light 1 is supplied by the auxiliary power supply (8).
1, the LEDs 13 are turned on, and the power supply system of the surveillance camera 20 is switched to the auxiliary power supply (8).
The auxiliary camera (8) drives the surveillance camera 20. Then, the inside of the car (1) is illuminated by turning on the LED 13, the inside of the car (1) is photographed by the surveillance camera 20, the situation inside the car (1) is monitored by the management center, and the passengers inside the car (1) are monitored. The situation of is understood.

FIG. 5 shows a fourth embodiment. In this embodiment, a motor 22 is provided on the inner upper surface of the shade 3 of the lighting device 2, a rotary shaft 23 driven by the motor 22, and a rotary shaft 23. A bearing 24 rotatably supporting the end of the rotary shaft 23 is provided, and the emergency light 11 is attached to the rotary shaft 23.

As in the case of the third embodiment, the emergency light 11 is provided with a surveillance camera 20 and a plurality of LEDs 13 in a case 12 as shown in FIG.
A diffusion lens 18 is attached to the light emitting portion of the. The emergency light 11 includes a surveillance camera 20 and an LED 13.
Is attached to the rotary shaft 23 so as to face the inside of the car (1) and swings according to the rotation of the rotary shaft 23.

Motor 22, surveillance camera 20, each LED 1
Each of the control panels 3 is connected to a control panel 25 provided in a machine room of the elevator, and the control panel 25 is connected to a remote monitoring center 27 via a signal line 26 such as a telephone line. Then, the remote monitoring center 27 sends a predetermined command signal to the control panel 25 via the signal line 26,
The command signal can control the motor 22 via the control panel 25. The control panel 25 is connected to the normal power source 5, the auxiliary power source 8 is connected via the power failure detection mechanism 9, and the auxiliary power source 8 is connected to each LED 13 of the emergency light 11 via the power failure detection mechanism 9. ing.

In normal times, the power of the normal power source 5 is supplied to the control panel 2
It is supplied to the monitoring camera 20 via 5. Then, the inside of the car 1 is sequentially photographed by the surveillance camera 20, and the data of the image is sent to the remote surveillance center 27 via the signal line 26 and sequentially monitored. At the time of a power failure, the occurrence of the power failure is detected by the power failure detection mechanism 9, and the power of the auxiliary power supply 8 is supplied to each LED 13 of the emergency light 11 based on this detection, whereby each LED 1
3 lights up and the inside of the car (1) is illuminated to the required illuminance.

The power of the auxiliary power supply 8 is supplied to the surveillance camera 20 via the control panel 25, and the surveillance camera 20 is driven by this power in place of the normal power supply 5. At this time, the remote monitoring center 27 sends a predetermined command signal to the control panel 25 via the signal line 26, and the command signal controls the motor 22 via the control panel 25 to rotate the rotary shaft 23 in the forward and reverse directions. The emergency light 11 is repeatedly rotated in the forward and reverse directions by this rotation operation, and the monitoring camera 20 is rotated by this rotation operation.
This makes it possible to photograph a wide range of the car (1).

That is, when the surveillance camera 20 swings, the interior of the car (1) is photographed without leaving a blind spot, and the image data is sent to the remote surveillance center 27 via the signal line 26. To be monitored. Therefore, the presence or absence of passengers in the car (1) and the status of the passengers can be accurately grasped. Then, if necessary, rescue work for passengers in the car (1) can be promptly performed.

Even during normal times, from the viewpoint of crime prevention, the motor 22 is driven as necessary or at all times to swing the emergency light 11 in the forward and reverse directions, and the surveillance camera 20 allows the inside of the car (1) to move. It is also possible to take a picture of a wide area of the car sequentially and monitor the situation in the car (1) at the remote monitoring center 27.

FIG. 7 shows a fifth embodiment. In this embodiment, a view elevator is used, and one side wall surface of a hoistway 30 for raising and lowering the car 1 is a translucent member such as glass. 31. Further, one side wall surface of the car 1 facing the translucent member 31 is composed of a translucent member 32 such as glass, and passengers in the car 1 pass through the translucent members 31 and 32 to build the building. You can see the scenery outside the building.

A machine room 33 is provided above the hoistway 30. A hoisting machine 34 is provided in the machine room 33, and a main rope 35 is wound around the hoisting machine 34. The car 1 is attached to one end of the rope 35, and the counterweight 36 is attached to the other end thereof. The main rope 35 is driven by the hoist 34,
Moves up and down in the hoistway 30.

An emergency light 11 having a plurality of LEDs as a light source is provided in the car 1, and an auxiliary power source 8 for supplying electric power to the LEDs of the emergency light 11 to light the LED is provided outside the upper part of the car 1 in the event of a power failure. And a solar collector panel 37 having a function of collecting sunlight to generate electricity is installed toward the translucent member 31, and the solar collector panel 37 is provided with the auxiliary power source 8. It is connected to the.

In this embodiment, the sunlight outside the building is incident on the solar current collecting panel 37 on the car 1 through the transparent member 31 on one side wall of the hoistway 30, and the sunlight is incident. As a result, the solar power collector panel 37 generates electric power, and the electric power is sent to the auxiliary power source 8 to be sequentially charged.

For this reason, it is not necessary to separately charge or replace the auxiliary power source 8, and the auxiliary power source 8 can be used almost semi-permanently, whereby a large cost reduction can be achieved and the auxiliary power source 8 can be used. It has the advantage of eliminating the need for disposal and helping protect the environment.

FIG. 8 shows a sixth embodiment. In each of the above-described embodiments, L as the light source of the emergency light 11 is used.
Although the diffusion lens 18 is attached to each of the EDs 13, in the sixth embodiment, the plurality of LEDs 13 as the light source are provided in the case 12, and the end surface of the case 12 on the lower end side is opened. A single diffusion lens 18 is attached to the opening so as to face the light emitting portion 13a of each LED 13.

In this emergency light 11, each LED 13
The light emitted from the light emitting portion 13 a of the light diffuses when passing through the diffusion lens 18. It is also possible to mount the emergency light 11 having such a configuration in the car (1) and use it.

In the above embodiment, an example in which the emergency light is attached to the shade in the illuminating device in the car has been shown, but the display on the inner wall of the car or the operation panel on which the elevator destination floor registration button is arranged. It may be attached to a section.

[0040]

As described above, according to the present invention,
A light emitting diode with low power consumption is used as a light source for an emergency light, and the light generated by lighting the light emitting diode is applied to the inside of the car through a light diffusing member to obtain the required illuminance, so an auxiliary power supply for lighting the light emitting diode. Can have a small capacity and low cost.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a configuration of an elevator car including an emergency light according to an embodiment of the present invention.

2A is a sectional view of the emergency light, and FIG. 2B is a bottom view of the same.

FIG. 3A is a sectional view of an emergency light according to a second embodiment of the present invention, and FIG. 3B is a bottom view of the same.

FIG. 4A is a sectional view of an emergency light according to a third embodiment of the present invention, and FIG. 4B is a bottom view of the same.

FIG. 5 is a configuration diagram showing a support structure for an emergency light according to a fourth embodiment of the present invention.

6 is a sectional view taken along the line AA in FIG.

FIG. 7 is a cross-sectional view showing the configuration of an elevator including an emergency light according to a fifth embodiment of the present invention.

FIG. 8 is a sectional view of an emergency light according to a sixth embodiment of the present invention.

FIG. 9 is a configuration diagram showing a conventional technique.

[Explanation of symbols]

1 ... basket 2 ... Lighting device 5 ... Normal power supply 8 ... Auxiliary power supply 9 ... Blackout detection mechanism 11 ... Emergency light 13 ... LED (light emitting diode) 13a ... Light emitting unit 18 ... Diffusing lens (light diffusing member) 20 ... Surveillance camera 22 ... Motor 23 ... rotary shaft 27 ... Remote monitoring center 31, 32 ... Translucent member 37 ... Solar concentrating panel

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Claims (5)

[Claims] 1. When power supply to a lighting device for illuminating the inside of a car of an elevator is interrupted by a power failure, this is detected by a power failure detection mechanism, and in response to this detection, an emergency light in a car room is an auxiliary power source. In the emergency light device of the elevator to keep a predetermined illuminance in the car by lighting, the emergency light is configured with a light emitting diode as a light source,
An emergency light device for an elevator, characterized in that light generated by lighting of the light emitting diode is emitted into a car through a light diffusing member. 2. When power supply to a lighting device for illuminating the inside of a car of an elevator is interrupted by a power failure, this is detected by a power failure detection mechanism, and in response to this detection, an emergency light in the car room is an auxiliary power source. In the emergency light device for an elevator, which is lit by means of a light source, the emergency light is configured by using a plurality of light emitting diodes as light sources, and the light emitting portion of at least one of the plurality of light emitting diodes is a direct car. An emergency light device for an elevator, characterized in that a light diffusing member is provided in a light emitting portion of the remaining light emitting diode exposed inside. 3. The emergency light is integrally provided with a surveillance camera for monitoring the interior of the cab, and the surveillance camera is driven via the auxiliary power source during a power failure. The emergency light device of the elevator according to. 4. The emergency light device for an elevator according to claim 3, wherein the emergency light is swingably supported and can be swung in response to a command from the outside of the car. 5. The car is provided with a solar collector panel that collects and generates sunlight from outside the car, and the solar collector panel is rechargeably connected to the auxiliary power source. The emergency light device for an elevator according to claim 1, wherein the emergency light device is an elevator.