JP4262960B2 - Elevator lighting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an illumination device that illuminates an elevator cab.
[0002]
[Prior art]
FIG. 4 shows the configuration of an elevator cab 1, which is installed at a car floor 2, a side plate 3 that surrounds the car floor 2, and an upper end of these side plates 3. The top plate 4 is provided.
[0003]
The lower surface of the top plate 4 is a ceiling portion 4a, and an illumination box 5 is attached to the ceiling portion 4a. The illumination box 5 has a large opening 6 on the lower side, and an illumination plate 7 formed of light-transmitting synthetic resin, for example, is provided in the opening 6.
[0004]
A plurality of lamps 11 are provided on the ceiling portion 4a in the inner region of the lighting box 5 through a socket 10, and light from these lamps 11 passes through the lighting plate 7 and enters the car room 1, and this light. The inside of the car room 1 is illuminated with a predetermined illuminance.
[0005]
In addition, an entrance / exit 15 is formed in the side plate 3 on the front side of the car room 1, and doors 16 a and 16 b for opening and closing are provided in the entrance / exit 15. Reference numeral 17 denotes a curtain plate provided on the upper side of the entrance 15, and reference numeral 18 denotes a baseboard provided on the lower side of the side plate 3.
[0006]
Conventionally, a hot cathode fluorescent lamp (20 W to 40 W) for general household is used as the lamp 11.
[0007]
[Problems to be solved by the invention]
The design of the interior of the car room 1 largely depends on the illumination inside the car room 1, and it is important to always keep the inside of the car room 1 at a predetermined illuminance by the lamp 11.
[0008]
However, the normal general hot cathode fluorescent lamp used as the lamp 11 has a characteristic that its life is shortened by repeated lighting and extinguishing. The reason is that an overcurrent is required at the time of starting the fluorescent lamp, and the cathode is gradually damaged by the overcurrent.
[0009]
For this reason, conventionally, the lamp 11 reaches the end of its life relatively early, and the illuminance in the cab 1 decreases or uneven illumination occurs, resulting in a decrease in design. In order to avoid this, it is necessary to replace the lamp 11 relatively frequently, and maintenance becomes troublesome.
[0010]
By the way, a cold cathode fluorescent lamp is generally known as a long-life lamp. Therefore, it is conceivable to use a cold cathode fluorescent lamp as an illumination lamp in the car room.
[0011]
However, the working voltage of a general hot cathode fluorescent lamp is 100 V of alternating current, whereas the working voltage of a cold cathode fluorescent lamp is usually 24 V of direct current, and is therefore provided in the ceiling portion 4 a of the cab 1. When a cold cathode fluorescent lamp is used in place of the existing hot cathode fluorescent lamp, not only the replacement of the lamp but also the step-down voltage transformer and lighting ballast must be individually installed on the ceiling portion 4a. However, this requires labor for arrangement, wiring, capacity calculation, and the like, and a large-scale renovation around the ceiling of the cab is required.
[0012]
The present invention has been made paying attention to such points, and the object of the present invention is to use a long-life cold-cathode fluorescent lamp with a long-life cold-cathode fluorescent lamp without requiring a major repair around the ceiling of the cage. It is providing the elevator illuminating device which can irradiate with good design nature.
[0013]
[Means for Solving the Problems]
According to the first aspect of the present invention, each of the unit cases includes a cold cathode fluorescent lamp, a ballast for lighting the cold cathode fluorescent lamp, and a voltage transformer for converting a voltage input to the ballast to a predetermined voltage. Installed to form an integrated lighting unit, the unit case is equipped with a reflector, and the cold cathode fluorescent lamp, ballast and voltage transformer are attached to the lower surface of the reflector, and a wiring hole is formed in the reflector A wiring electrically connecting the cold cathode fluorescent lamp, the ballast, and the voltage transformer is led out to the upper surface side of the reflector through the wiring hole, and this lighting unit is attached to the ceiling of the elevator cab. It is characterized by becoming.
[0014]
According to a second aspect of the present invention, a cold cathode fluorescent lamp and a ballast for lighting the cold cathode fluorescent lamp are each installed in a unit case to constitute an integrated lighting unit, and the unit case includes a reflector. The cold cathode fluorescent lamp and the ballast are attached to the lower surface of the reflector, a wiring hole is formed in the reflector, and the wiring for electrically connecting the cold cathode fluorescent lamp and the ballast passes through the wiring hole. Derived on the upper surface side of the reflector, this lighting unit is attached to the ceiling of the elevator cab, and the input voltage to the ballast is made the same as the operating voltage of the display device in the cab and used in the display device. The voltage transformer also serves as a voltage transformer for the ballast.
[0015]
The invention described in claim 3 is characterized in that the illuminance of the one illumination unit is equal to or ½ of the illuminance of one normal hot cathode fluorescent lamp.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the part corresponding to the conventional structure, and the overlapping description is abbreviate | omitted.
[0017]
FIG. 1 is a plan sectional view of the lighting unit 20, FIG. 2 is a side sectional view of the lighting unit 20, and FIG. 3 is a configuration diagram of the lighting unit 20 attached to the ceiling of the cab 1. It is.
[0018]
As shown in FIGS. 1 and 2, the illumination unit 20 includes a unit case 23 formed of a reflection plate 21 and a light transmission plate 22, and the unit case 23 is configured in a flat box shape, for example.
[0019]
That is, the reflecting plate 21 has a thin box shape having an opening 24 on the lower surface, and the light transmitting plate 22 made of, for example, synthetic resin is provided in the opening 24.
[0020]
A pair of support bases 27 are attached to both ends of the lower surface of the reflecting plate 21 so as to face each other, and a plurality of, for example, five straight-tube cold cathode fluorescent lamps 28 are connected to each other between the support bases 27. It is installed in parallel with a gap.
[0021]
A ballast 30 having an inverter function and a voltage transformer 31 for converting AC 100V into a DC 24V voltage are attached to one side of the lower surface of the reflecting plate 21. Each cold cathode fluorescent lamp 28, ballast 30, and voltage transformer 31 are electrically connected via a wiring 32, and an end portion of the wiring 32 is passed through a wiring hole 33 formed in the reflecting plate 21. It is led out to the upper surface side. In addition, screw holes 34 are formed at the four corners of the reflecting plate 21.
[0022]
The cold cathode fluorescent lamp 28 has a translucent discharge vessel having a diameter of about 1 mm to 6 mm, a pair of cold cathodes (not shown) sealed at both ends of the discharge vessel, and an inner surface of the discharge vessel. A coated phosphor (not shown) and a discharge medium (not shown) sealed in a discharge vessel are provided. Since the cold cathode fluorescent lamp 28 emits light without heating the cathode, the life is not affected by the number of times of turning on / off, and the life is determined only by the factors resulting from the light emission time. . Further, the cold cathode fluorescent lamp 28 is turned on immediately when a voltage is applied, and has one of the features that there is no time delay until light emission.
[0023]
When such an illumination unit 20 is installed in the existing car room 1 shown in FIG. 4, first, a plurality of hot cathode fluorescent lamps 11 attached to the lower surface of the top plate 4 of the existing car room 1 and its Remove the socket 10. The lighting box 5 in the cab 1 is left as it is.
[0024]
Next, the plurality of illumination units 20 having the above-described configuration are attached to the lower surface of the top plate 4 of the cab 1, that is, the ceiling portion 4 a instead of the fluorescent lamps 11, as shown in FIG. 3.
[0025]
When attaching each lighting unit 20 to the ceiling portion 4a, screws (not shown) are inserted into screw holes 34 formed at the four corners of the reflection plate 21, and the reflection plate 21 is fixed to the ceiling portion 4a with the screws. To install.
[0026]
Moreover, when attaching each lighting unit 20 to the ceiling part 4a, the wiring 32 in each lighting unit 20 is connected to the wiring (not shown) of the power supply system of the cab 1.
[0027]
Thereby, the mounting operation of each lighting unit 20 is completed.
[0028]
During operation of the elevator, 100 V AC power is supplied to the voltage transformer 31 through the wiring 32, the voltage is converted to 24 V DC by the voltage transformer 31, and this 24 V DC power is supplied to the ballast 30. Then, each cold cathode fluorescent lamp 28 is turned on under the control of the ballast 30, and light having a predetermined wavelength is emitted.
[0029]
Part of the emitted light is directly transmitted through the light transmitting plate 22, and the other part is reflected by the reflecting plate 21 and passes through the light transmitting plate 22. The light transmitted through the translucent plate 22 is further transmitted through the illumination plate 7 and enters the car room 1, and the light is illuminated so that the interior of the car room 1 has a predetermined illuminance.
[0030]
Each lighting unit 20 uses a cold cathode fluorescent lamp 28 as its light source, and therefore it is possible to extend its life. This is because the cold cathode fluorescent lamp 28 does not have a cathode that becomes high temperature when energized unlike the conventional hot cathode fluorescent lamp, and therefore problems such as disconnection of the cathode do not occur.
[0031]
The lifetime of the hot cathode fluorescent lamp is about 6000 hours, whereas the cold cathode fluorescent lamp has a lifetime of about 50000 hours, and its lifetime is about 10 times that of the hot cathode fluorescent lamp.
[0032]
Furthermore, the lifetime of the cold cathode fluorescent lamp 28 does not depend on the number of times of lighting / extinguishing, and this is one factor that can achieve a long lifetime. The hot cathode fluorescent lamp has a characteristic that its life is shortened depending on the number of times of turning on / off. Therefore, even if it has a life of about 6000 hours, the life is further shortened as the number of times of turning on / off is increased.
[0033]
As described above, since the life of the cold cathode fluorescent lamp 28 as a light source is extended, the number of maintenance inspections and lamp replacements for the lighting device in the cab 1 can be greatly reduced, and the maintenance cost can be reduced. Further, the cold cathode fluorescent lamp 28 has less light unevenness, and therefore, the design of the lighting in the cab 1 can be further improved.
[0034]
On the other hand, the lighting unit 20 installed in the cab 1 has a unit structure integrally including a plurality of cold cathode fluorescent lamps 28, a supporting base 27 for supporting them, a ballast 30 for lighting, a voltage transformer 31 and the like. Therefore, when the cold cathode fluorescent lamp 28 is provided in place of the existing hot cathode fluorescent lamp in the cab 1, the lighting unit 20 of the unit structure is simply attached to the ceiling portion 4a of the cab 1. The operation can be accomplished easily and efficiently without the need for troublesome and troublesome work such as installing the ballast 30 and the voltage transformer 31 and routing the wiring 32. In addition, the existing lighting box 5 in the car room 1 can be used as it is without any modification.
[0035]
By the way, the illuminance in one illumination unit 20, that is, the sum of the illuminances of a plurality of cold cathode fluorescent lamps 28 arranged in the unit case 23 is equivalent to one illuminance of a normal hot cathode fluorescent lamp of 30 W, for example. Or is preferably set to be 1/2.
[0036]
When the illuminance in one lighting unit 20 is set to be equal to the illuminance of a normal 30 W hot cathode fluorescent lamp, five existing 30 W hot cathode fluorescent lamps are provided in the existing cab 1. When the five lighting units 20 are attached to the ceiling 4a of the car room 1 instead of the five hot cathode fluorescent lamps, the car room 1 can be illuminated with a predetermined illuminance as designed. It is possible to easily calculate the capacity.
[0037]
In addition, when the illuminance of one lighting unit 20 is set to be 1/2 of the illuminance of one of the normal 30 W hot cathode fluorescent lamps, the existing hot cathode fluorescent lamp is replaced with twice that amount. If several lighting units 20 are attached to the ceiling portion 4a of the car room 1, the inside of the car room 1 can be illuminated with a predetermined illuminance as designed, and the capacity calculation becomes easy.
[0038]
In the embodiment, the voltage transformer 31 is incorporated in the lighting unit 20 together with the ballast 30. However, the input voltage to the ballast 30 is applied to a push button or an interphone provided in the cab 1. If the voltage used is the same as that of the display device, the voltage transformer used in the display device can be used as the voltage transformer of the lighting unit 20 and the voltage transformer in the lighting unit 20 can be omitted. it can.
[0039]
【The invention's effect】
As described above, according to the present invention, the car room can be kept in good design using the lighting unit having the long-life cold cathode fluorescent lamp without requiring a major renovation around the ceiling of the car room. Can be illuminated.
[Brief description of the drawings]
FIG. 1 is a plan sectional view showing an illumination unit of an elevator illuminating device according to an embodiment of the present invention.
FIG. 2 is a side sectional view of the illumination unit shown in FIG.
FIG. 3 is a configuration diagram in a state where the lighting unit shown in FIG. 1 is attached to a ceiling portion of a cab.
FIG. 4 is a configuration diagram showing a conventional elevator illumination device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Car room 4 ... Top plate 4a ... Ceiling surface 5 ... Illumination box 7 ... Illumination plate 20 ... Illumination unit 21 ... Reflection plate 22 ... Translucent plate 23 ... Unit case 27 ... Support stand 28 ... Cold cathode fluorescent lamp 30 ... Stable 31 ... Voltage transformer 32 ... Wiring

Claims (3)

A cold-cathode fluorescent lamp, a ballast for lighting the cold-cathode fluorescent lamp, and a voltage transformer for converting the voltage input to the ballast into a predetermined voltage are each installed in a unit case to form an integrated lighting unit. The unit case includes a reflector, and the cold cathode fluorescent lamp, ballast, and voltage transformer are attached to a lower surface of the reflector, and a wiring hole is formed in the reflector, and the cold cathode fluorescent lamp, stable Elevator lighting, characterized in that a wiring electrically connecting a voltage generator and a voltage transformer is led out to the upper surface side of the reflector through the wiring hole, and the lighting unit is attached to a ceiling portion of an elevator cab apparatus. A cold-cathode fluorescent lamp and a ballast for lighting the cold-cathode fluorescent lamp are each installed in a unit case to form an integral lighting unit. The unit case includes a reflector, and the cold plate is provided on the lower surface of the reflector. A cathode fluorescent lamp and a ballast are attached, and a wiring hole is formed in the reflection plate, and a wiring electrically connecting the cold cathode fluorescent lamp and the ballast is led to the upper surface side of the reflection plate through the wiring hole, This lighting unit is attached to the ceiling of the elevator cab, the input voltage to the ballast is made the same as the operating voltage of the display device in the cab, and the voltage transformer used in the display device is changed to the ballast. An elevator illuminating device that doubles as a voltage device.   The illuminance of one lighting unit is equal to or ½ of the illuminance of one normal hot cathode fluorescent lamp, The elevator illuminating device according to claim 1 or 2.

Images