JP5800497B2 - Lighting equipment for passenger conveyors - Google Patents

Description

  Embodiments of the present invention relate to lighting devices for passenger conveyors such as escalators and moving walkways.

  Conventionally, as a lighting device used for a passenger conveyor, a fluorescent lamp is generally used, and lamp breakage is often the life of the lighting device. In order to properly determine the life of a discharge lamp lighting device such as this fluorescent lamp lamp, there has conventionally been provided an integration counter that integrates the discharge lamp lighting time, and a device that notifies a warning when the accumulated lighting time reaches the life is provided. It has been proposed (see, for example, Patent Document 1).

JP 2001-185374 A

  However, in recent years, LED lighting devices using LEDs that have a longer life than fluorescent lamps and do not run out of lamps have begun to spread, but have the following problems.

  The first problem is that the lifetime of the DC power supply device that supplies DC power to the LED is shorter than that of the LED.

  The second problem is that the LED does not burn out, but the brightness of the LED gradually becomes darker as the lighting time becomes longer.

Embodiments of the present invention include an LED that illuminates a passenger conveyor, a DC power supply that supplies DC power to the LED, a temperature sensor that detects a temperature in a truss of the passenger conveyor, and a usage time of the DC power supply The first integrated lighting time for the DC power supply apparatus is obtained by multiplying the first integrated lighting time by a correction coefficient that increases as the detected temperature of the temperature sensor increases. It calculates the calculates the second cumulative lighting time by accumulating lighting time of the LED, the correction coefficient toward the second accumulation lighting time, and calculates the second correction cumulative lighting time for the LED, the first when the second correction accumulated lighting time reaches the lifetime of the LED, or, when the first correction cumulative lighting time reaches arrives the lifetime of the DC power supply device, that it has reached the life by the notification unit A control unit for knowledge, is an illumination device of a passenger conveyor, characterized in that it comprises a.

  Then, this invention provides the illuminating device of a passenger conveyor which can know the lifetime of the LED illumination part in a passenger conveyor or a DC power supply device correctly in view of the said problem.

  An embodiment of the present invention includes an LED that illuminates a passenger conveyor, a DC power supply that supplies DC power to the LED, a temperature sensor that detects a temperature in a truss of the passenger conveyor, or a control box, The integrated lighting time is obtained by integrating the LED lighting time, and the corrected integrated lighting time is calculated by multiplying the integrated lighting time by a correction coefficient that increases as the detected temperature of the temperature sensor increases. Is a lighting device for a passenger conveyor, comprising: a control unit for notifying that the lifetime has been reached by the notification unit when the lifetime of the LED or the lifetime of the DC power supply device has been reached.

It is a block diagram of the illuminating device of the escalator which concerns on Example 1 of this invention. It is a flowchart of an illuminating device. 6 is a block diagram of an escalator lighting device according to Embodiment 2. FIG.

  Hereinafter, the illumination device 50 of the passenger conveyor of embodiment of this invention is demonstrated based on drawing.

  The passenger conveyor according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2 by taking an escalator as an example.

  In the escalator of the present embodiment, a plurality of LED illumination units 11 are arranged side by side inside the left and right handrails. In addition to this position, the LED illumination units 11 are provided in places where illumination is necessary. The LED illumination unit 11 means a single unit in which a plurality of LEDs are arranged on a substrate. In order to turn on (turn on) / off (turn off) the LEDs of the plurality of LED illumination units 11, the escalator includes a lighting switch 6.

(1) Escalator lighting device 50
An escalator lighting device 50 according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram of the illumination device 50.

  The lighting device 50 includes an AC power source 1, a control unit 3, an operation relay contact 5, a key switch 6, an electromagnetic contactor (LPR) 7, a display unit 10, an operation unit 16, a DC power source in addition to the plurality of LED lighting units 11. The apparatus 4 has a temperature sensor 9.

  The AC power supply 1 supplies AC 200V AC power to the control unit 3 and the DC power supply device 4 through the circuit breaker 2.

  The DC power supply 4 is a single unit, which converts the AC power supply AC200V into the DC power supply DC24V and supplies power to all of the plurality of LED illumination units 11.

  The plurality of LED illumination units 11 are connected in parallel, for example, and the DC power supply DC24V is fed from the DC power supply device 4 so that all LEDs are lit.

  The electromagnetic contactor (LPR) 7 is for turning on / off the LED of the LED illumination unit 11, and the operation relay contact 5 and the lighting switch 6 are connected in series. The operation relay contact 5 is turned on when the escalator starts operation, and the key switch 6 is a switch for maintenance personnel, managers, and the like to light the LEDs of the LED illumination unit 11. On the other hand, the contact 8a of the electromagnetic contactor 7 is connected to a power supply line for supplying DC power to the plurality of LED illumination units 11, and the contact 8b of the electromagnetic contactor 7 inputs an illumination count signal to the control unit 3. In order to do so, the controller 3 is provided. The magnetic contactor (LPR) 7 turns on the contact 8a and the contact 8b when either the operation relay contact 5 or the lighting switch 6 is turned on.

  The control unit 3 is connected to a display unit 10 made of a liquid crystal display device, an operation unit 16 made of a switch or a keyboard, a temperature sensor 9, and a contact 8 b of the electromagnetic contactor 7 described above. The control unit 3 stores the lifetime (time) of the LED, the lifetime (time) of the DC power supply device 4, and a correction coefficient k described later in an internal memory. The lifetime of the DC power supply device 4 is, for example, 1000 hours, and the lifetime of the LEDs is, for example, 5000 hours. These lifetimes are stored in the control unit 3.

  The temperature sensor 9 is disposed inside the control box. This control box is a box in which the control unit 3, the DC power supply device 4 and the like are housed, and is arranged inside the truss of the escalator, particularly in the machine room where the drive motor and the like are arranged. The temperature sensor 9 detects the temperature inside the truss, that is, inside the control box.

(2) Operating State of Lighting Device 50 Next, the operating state of the lighting device 50 will be described based on the flowchart of FIG.

  In step S1, when the escalator starts operation, the operation relay contact 5 is turned on, and the contacts 8a and 8b of the electromagnetic contactor (LPR) 7 are turned on. When the contact 8a is turned on, a direct current power supply is fed from the direct current power supply device 4 to the LEDs of the plurality of LED illumination units 11, and lighting is started. In addition, when the contact 8 b is turned on, an illumination count signal is input to the control unit 3. If the illumination count signal is input (ON), the process proceeds to step S2, and if not, the state of step S1 is maintained. Further, even if the key switch 6 is operated by the maintenance staff, the contact 8a and the contact 8b of the electromagnetic contactor 7 are turned on, the LED of the LED illumination unit 11 is turned on, and the illumination count signal is input to the control unit 3. .

  In step S2, the control unit 3 counts and integrates each of the first lighting time that is the usage time of the DC power supply device 4 and the second lighting time that is the LED lighting time of the LED illumination unit 11, 1 total lighting time and 2nd total lighting time are calculated | required. The reason for separately counting the first lighting time and the second lighting time in this manner is that the timing for exchanging the DC power supply device 4 and the LED illumination unit 11 is different. This is because the first integrated lighting time is reset, but since the LED illumination unit 11 has not yet been replaced, the second integrated lighting time continues to be integrated. When the escalator stops or when the key switch 6 is turned off and the LED is turned on, the control unit 3 ends the integration of the first lighting time and the second lighting time, respectively. The lighting time and the second integrated lighting time are stored. Moreover, the control part 3 memorize | stores continuously the temperature detected by the temperature sensor 9 during this lighting time. Then, the process proceeds to step S3.

  In step S3, the control unit 3 calculates the average temperature of the detected temperatures during the lighting time. And the control part 3 calls the correction coefficient k corresponding to the calculated average temperature from an internal memory, calculates this correction | amendment coefficient k over 1st integration lighting time, and calculates 1st correction | amendment integration lighting time. The correction coefficient k is, for example, 1.0 when the average detected temperature is 30 ° C., 1.5 when 35 ° C., 2.0 when 40 ° C., and 25 ° C. lower than 30 ° C. In this case, 0.5 is set. This is because the life of the electrolytic capacitor of the DC power supply device 4 is shortened if the temperature in the truss (that is, the control box) is high. Therefore, the correction coefficient k corresponding to the degree of shortening the life is multiplied by the integrated lighting time and depends on the temperature. The effect on the life is reflected in the accumulated lighting time. Similarly, the control unit 3 calculates the second corrected integrated lighting time by multiplying the correction coefficient k by the second integrated lighting time.

  In step S4, the control unit 3 determines whether or not the calculated first corrected integrated lighting time has reached the life (time) of the DC power supply device 4. If it has reached, the control unit 3 proceeds to step S5 and reaches it. If not, the process proceeds to step S7.

  In step S5, since the life of the DC power supply 4 has been reached, the fact that the DC power supply 4 has reached the end of life is displayed on the screen on the display unit 10, and the process proceeds to step S6.

  If the maintenance person replaces the DC power supply device 4 in step S6, the control unit 3 resets only the first integrated lighting time, continues to count the second integrated lighting time, and returns to step S1.

  In step S7, the control unit 3 determines whether or not the calculated second corrected integrated lighting time has reached the life (time) of the LED of the LED illumination unit 11, and if it has reached, proceeds to step S8. If not, the process returns to step S1.

  In step S8, the control unit 3 displays on the display unit 10 that the LED of the LED illumination unit 11 has reached the end of life, and proceeds to step S9.

  In step S9, when the maintenance engineer replaces the LED illumination unit 11, only the second integrated lighting time is reset, the first integrated lighting time continues to be counted, and the process returns to step S1.

(3) Effect According to the present embodiment, the first integrated lighting time and the second integrated lighting time are corrected corresponding to the temperature detected by the temperature sensor 9 in the control box, and the LED of the DC power supply device or the LED illumination unit is corrected. Therefore, it is possible to accurately notify maintenance personnel or managers when these lifetimes are reached.

  In addition, since the lifetime of the DC power supply device 4 and the LED of the LED illumination unit 11 is determined separately, the lifetime can be determined more accurately. In particular, when the DC power supply device 4 and the LED illumination unit 11 are replaced, each accumulated lighting time is individually reset, so that there is no need to replace the DC power supply device 4 and the LED illumination unit 11 at the same time.

  Next, an escalator according to Embodiment 2 of the present invention will be described with reference to FIG.

  The difference between the present embodiment and the first embodiment is that, instead of the display unit 10, an audio output device 12 and a speaker 13 are provided, and in addition to the DC power supply device 4, a standby power supply device 15 and a DC power supply control device 14 are provided. It is in having.

  In the illumination device 50 of the present embodiment, when the life of the LED of the DC power supply device 4 or the LED illumination unit 11 comes, the control unit 3 notifies the speaker 13 by voice via the audio output device 12. To do.

  When the life of the DC power supply device 4 comes, the DC power supply control device 14 switches to supply the DC power from the standby DC power supply device 15 to the LED illumination unit 11 instead of the DC power supply device 4. As a result, even if the replacement of the DC power supply 4 is delayed and the life is exhausted, the LED of the LED illumination unit 11 is not turned off by the DC power from the standby DC power supply 15.

Example of change

  In each of the above embodiments, when the life of the LED illumination unit 11 comes, a warning is given from the display unit 10 or the audio output device and the speaker 13, but in addition to this, the control unit 3 displays the LED of the LED illumination unit 11. May be blinked. Thereby, it can be determined at a glance that the LED illumination unit 11 has reached the end of its life.

  In addition, the LED illumination unit 11 is reduced in brightness as the normal lighting time increases. Therefore, in order to prevent this reduction in brightness, when the second cumulative lighting time is short, the DC current value supplied from the DC power supply device 4 is reduced, and the longer the cumulative lighting time is, the longer this DC current is. The value may be increased so that the brightness of the LED illumination unit 11 is always constant.

  Moreover, in the said Example, although demonstrated with the escalator, it may replace with this and may apply with the moving walk.

  Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 100 ... Escalator, 1 ... AC power supply, 2 ... Circuit breaker, 3 ... Control part, 4 ... DC power supply device, 5 ... Operation relay contact, 6 ... Key switch 7 ... Magnetic contactor, 8a ... Contact of electromagnetic contactor, 8b ... Contact of electromagnetic contactor, 9 ... Temperature sensor, 10 ... Display unit, 11 ... LED illumination unit , 12 ... Audio output device, 13 ... Speaker, 14 ... DC power supply control device, 15 ... Standby DC power supply device, 16 ... Operation unit

Claims (7)

LEDs that illuminate the passenger conveyor,
A DC power supply for supplying DC power to the LED;
A temperature sensor for detecting the temperature in the truss of the passenger conveyor;
The use time of the DC power supply device is integrated to obtain a first integrated lighting time, and a correction coefficient that increases as the detected temperature of the temperature sensor increases over the first integrated lighting time. the first calculates the correction integrated lighting time, obtains a second cumulative lighting time by accumulating lighting time of the LED, the subjected to correction coefficient the second cumulative lighting time, the second correction cumulative lighting for the LED calculates the time, when the second correction cumulative lighting time reaches the lifetime of the LED, or, when the first correction cumulative lighting time reaches arrives the lifetime of the DC power supply device, the life by the notification unit A control unit for notifying that it has arrived;
A passenger conveyor lighting device characterized by comprising: The control unit causes the LED to blink when the second corrected integrated lighting time reaches the lifetime of the LED or the first corrected integrated lighting time reaches the lifetime of the DC power supply device.
The passenger conveyor lighting device according to claim 1. The notification unit is a display unit or an audio output unit.
The lighting device for a passenger conveyor according to claim 1 or 2. A standby DC power supply for supplying DC power to the LED;
The control unit supplies direct current power to the LED from the backup direct current power supply device instead of the direct current power supply device when the first corrected integrated lighting time reaches the life of the direct current power supply device.
The illumination device for a passenger conveyor according to any one of claims 1 to 3. The control unit increases the DC current value supplied to the LED from the DC power supply device as the second correction integrated lighting time is longer.
The lighting device for a passenger conveyor according to any one of claims 1 to 4, wherein One DC power supply unit supplies DC power to all the LEDs.
The lighting device for a passenger conveyor according to any one of claims 1 to 5. The DC power supply device and the control unit are arranged in a control box,
The control box is disposed in the truss;
The temperature sensor is disposed in the control box;
The illumination device for a passenger conveyor according to any one of claims 1 to 6.

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