JP5984433B2 - Lighting device and lighting system - Google Patents

Description

  The present invention relates to a lighting device and a lighting system. The present invention particularly relates to a disaster prevention lamp.

  In Japan, it is obliged to install emergency lighting (disaster prevention lights) on buildings specified by law. The emergency lighting is a lighting device that is lit for a certain time in response to an electric power supply from a built-in storage battery in an emergency (power failure).

  When a relatively long power failure is repeated, the next power failure occurs without sufficiently replenishing the energy of the storage battery spent in the first power failure, so that there is a possibility that the power failure cannot be sufficiently dealt with. In order to cope with such repeated power outages, an emergency main power supply and an emergency sub power supply (capacitor) are provided, and the power required for full charge is shorter than the emergency main power supply as an emergency sub power supply. There is proposed an emergency lighting that controls the emergency sub power supply to be fully charged preferentially over the emergency main power supply when the commercial power supply is energized (see, for example, Patent Document 1).

JP 2007-165017 A

  If a temporary power source is used as a permanent power source before the completion of a building such as a building, the emergency lighting is turned on every time the regular power source is cut off, and the storage battery is consumed. When the normal power supply runs out, it is usually when the work using the temporary power supply is completed, and it is not an emergency, so it is considered that the emergency lighting need not be lit for a certain period of time.

  However, conventionally, every time the temporary power supply is turned off, the emergency lighting is turned on and the storage battery is discharged. Moreover, since the storage battery is insufficiently charged, even if the temporary power supply is turned off, the emergency lighting cannot be continued for the time originally required for emergency lighting. Further, when the temporary power supply is started up, such as the day after the temporary power supply is turned off, or when starting work, the storage battery mounted in the emergency lighting is charged. Such repeated charging / discharging causes the life of the storage battery to be shortened.

  Originally, storage batteries for emergency lighting are designed as standby power supplies and are not suitable for repeated charging and discharging, so that the problem is that the life of the storage battery will be significantly reduced if power outages are repeated as described above. is there.

  Even if the emergency lighting having the main power source and the emergency sub power source described in Patent Document 1 is used, the problem that the life of the emergency main power source is reduced, Almost no effect can be expected.

  Thus, in the past, when a temporary power supply was used before the completion of the building, the storage battery for emergency lighting reached the end of its life by discharging it by unnecessary emergency lighting, There was a problem that the original performance could not be exhibited during a power failure. In particular, in a large-scale building, the use period of the temporary power source becomes long, which is a big problem.

  In the case of emergency lighting products, a warning is given in the instruction manual etc. so that the connector of the storage battery is not connected until the construction of the power supply is completed. However, in an actual site, it is not easy to reconnect the storage battery of each appliance (emergency lighting) after the completion of the power supply work. In addition, emergency lighting that continues to be lit for several minutes even after the temporary power supply is turned off after the completion of daily work is useful for construction contractors who return home, and is useful separately from the original use.

  Before completion, the building is inspected in accordance with the law, so it will be switched to the operation with the original commercial power source. At this time, the storage battery has already deteriorated and the specified time (for example, 24 hours) In some cases, the emergency lighting could not be performed normally even after charging, and the storage battery had to be replaced with a new one.

  The present invention prevents, for example, deterioration of the emergency power supply by preventing the emergency power supply from being charged and discharged unnecessarily, for example, when a temporary power supply is used before the construction in which the lighting device is installed is completed. Objective.

A lighting device according to one embodiment of the present invention includes:
A first power source charged by power supply from an external power source;
A second power source that is charged in a shorter time than the first power source;
A light source that is turned on when the external power supply fails.
A selection unit that selects one of a first mode in which power supply from the first power source to the light source is permitted and a second mode in which power supply from the first power source to the light source is not permitted;
When the external power supply fails, if the first mode is selected by the selection unit, the light source is turned on by supplying power from the first power source, and the second mode is selected by the selection unit. A lighting control unit that turns on the light source by supplying power from the second power source.

  In one aspect of the present invention, in the lighting device, the selection unit selects one of the first mode and the second mode, and in the case of a power failure, the lighting control is performed if the first mode is selected by the selection unit. The unit turns on the light source by supplying power from the first power source. If the second mode is selected by the selecting unit, the lighting control unit turns on the light source by supplying power from the second power source. Therefore, when the building in which the lighting device is installed is in a temporary power source before completion, the first power source can be prevented from being unnecessarily charged / discharged to prevent the first power source from deteriorating.

FIG. 3 is a circuit block diagram illustrating a configuration of the lighting device according to Embodiment 1; The table | surface which shows the relationship between charging / discharging of the battery of the illuminating device which concerns on Embodiment 1, and an external power supply. FIG. 6 is a circuit block diagram illustrating a configuration of a lighting device according to Embodiment 2. FIG. 6 is a circuit block diagram illustrating a configuration of a lighting device according to Embodiment 3. FIG. 6 is a circuit block diagram illustrating a configuration of a lighting device according to Embodiment 4. FIG. 6 is a circuit block diagram illustrating a configuration of a lighting system according to Embodiment 5. FIG. 10 shows a configuration example of a lighting system according to Embodiment 6;

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of each embodiment, the directions such as “up”, “down”, “left”, “right”, “front”, “back”, “front”, “back” are However, it is not intended to limit the arrangement or orientation of devices, instruments, parts, or the like.

Embodiment 1 FIG.
FIG. 1 is a circuit block diagram showing a configuration of a lighting device 10 according to the present embodiment.

  In FIG. 1, the lighting device 10 is connected to one of a commercial power supply 11 and a temporary power supply 12. In this Embodiment, although the illuminating device 10 is used as emergency illumination (disaster prevention light) installed in a building, the illuminating device 10 may be installed in buildings or other places other than a building. The lighting device 10 is connected to the temporary power source 12 before the building is completed, and is connected to the commercial power source 11 after the building is completed (or after the construction work of the commercial power source 11 on the building is completed).

  The temporary power supply 12 is for supplying power to the work site until the commercial power supply 11 is finally installed. The temporary power supply 12 is normally started (started up) at the start of work, and is turned off (stopped) at the end of work. The temporary power source 12 is, for example, a device that rotates a motor using a large battery or fuel and supplies an AC power source equivalent to the commercial power source 11 (that is, a generator).

  The lighting device 10 includes an emergency main power supply 43, an emergency auxiliary power supply 32, a light source 51 (load), a function changeover switch 25, and a lighting control unit 10a. In addition, in the figure, the emergency main power supply 43 and the emergency auxiliary power supply 32 are included in the dotted line frame indicating the lighting control unit 10a, but these are not components of the lighting control unit 10a.

  The emergency main power supply 43 is an example of a first power supply that is charged by supplying power from an external power supply. When the commercial power supply 11 is connected to the lighting apparatus 10, the commercial power supply 11 is an external power supply, and when the temporary power supply 12 is connected to the lighting apparatus 10, the temporary power supply 12 is an external power supply. As the emergency main power supply 43, for example, a backup nickel-hydrogen storage battery excellent in high temperature durability can be used.

  The emergency auxiliary power supply 32 is an example of a second power supply that is charged in a shorter time than the first power supply (emergency main power supply 43). In the present embodiment, the emergency auxiliary power supply 32 is charged by power supply from an external power supply in the same manner as the emergency main power supply 43, but the emergency auxiliary power supply 32 is different from the emergency main power supply 43. You may make it charge by the electric power supply from. As the emergency auxiliary power source 32, for example, a standard nickel-hydrogen storage battery can be used.

  The light source 51 is turned on when the external power supply fails. In the present embodiment, the light source 51 is turned on only when the external power supply is interrupted (that is, in an emergency). As the light source 51, for example, a halogen lamp such as a mini-halogen bulb or an incandescent lamp can be used.

  The function changeover switch 25 is a switch that is manually operated by a user (such as a construction manager or a power supply manager) to switch between a commercial power supply mode (eg, on) and a temporary power supply mode (eg, off). The function selector switch 25 is an example of a selection unit that selects one of a commercial power supply mode and a temporary power supply mode. The commercial power supply mode is an example of a first mode in which power supply from the first power supply (emergency main power supply 43) to the light source 51 is permitted. The temporary power supply mode is an example of a second mode in which power supply from the first power supply (emergency main power supply 43) to the light source 51 is not permitted.

  When the external power supply fails, if the commercial power supply mode is selected by the selection unit (function changeover switch 25), the lighting control unit 10a turns on the light source 51 by supplying power from the first power supply (emergency main power supply 43). Light up. When the external power supply fails, if the temporary power supply mode is selected by the selection unit (function changeover switch 25), the lighting control unit 10a supplies the light source 51 by supplying power from the second power supply (emergency auxiliary power supply 32). Light up.

  Below, the operation | movement of the lighting control part 10a at the time of employ | adopting the structure in the dotted-line frame which shows the lighting control part 10a in a figure is demonstrated. In addition, you may employ | adopt other than what was illustrated as a structure of the lighting control part 10a.

  When electric power is supplied from an external power source connected to the terminal block 18 via the inspection switch 16, an AC voltage is applied to the rectifying / smoothing circuit 14 via the line filter 13 (noise filter).

  Here, the inspection switch 16 is a switch for confirming an emergency operation. When the inspection switch 16 is operated, the terminal block 18 and the line filter 13 are brought into a non-conductive state, and the power supply from the external power source is cut off, so that an emergency operation can be confirmed. If power is supplied from the emergency main power supply 43 to the light source 51 and the light source 51 is turned on when the inspection switch 16 is operated, it can be determined that the emergency main power supply 43 and the light source 51 are normal.

  In the example of FIG. 1, the inspection switch 16 is arranged immediately after the terminal block 18. However, when a DC power supply system of a power supply transformer type is used instead of a DC / DC converter type as described later, a power supply transformer is used. An inspection switch 16 may be provided on the secondary side. Further, the inspection switch 16 may be connected to a control circuit 24 described later, and a signal that simulates an operation equivalent to the operation in an emergency may be input from the inspection switch 16 to the control circuit 24.

  The rectifying / smoothing circuit 14 is composed of a diode bridge and a capacitor, and converts the applied AC voltage into a DC voltage and outputs it.

  The DC / DC converter 15 steps down the DC voltage output from the rectifying / smoothing circuit 14 to an appropriate voltage.

  Here, the DC / DC converter 15 is a circuit that supplies charging power to the secondary side via the switching transformer 15b by using a control IC 15c incorporating a switching element 15d such as a MOSFET. On the secondary side of the switching transformer 15b, a DC voltage is output by the rectifying diode 15e and the smoothing capacitor 15f, thereby obtaining a stable DC power supply.

  The control of the DC power supply (that is, the switching control of the switching element 15d) is performed by feeding back the output of the control IC power supply 15a to the control IC 15c. The control IC power supply 15a includes an auxiliary winding, a diode, and a capacitor provided on the primary side of the switching transformer 15b. Since the auxiliary winding of the control IC power supply 15a has the same polarity as the secondary side main winding (main output winding) of the switching transformer 15b, the control IC 15c is connected to the secondary side by the control IC power supply 15a. Is detected, and the switching operation of the switching element 15d is controlled so that the detection result becomes a desired voltage.

  The secondary side of the switching transformer 15 b is a circuit for charging the emergency main power supply 43, and the emergency main power supply is connected via the constant current output unit 27, the backflow prevention diode 45, and the main power supply switching unit 42. 43. The constant current output unit 27 includes a resistor 27a, for example. The main power supply switching unit 42 is a switching element such as a MOSFET. In normal operation (that is, when the external power supply is energized), since the main power supply switching unit 42 is turned on, the output from the DC / DC converter 15 is converted to a constant current by the constant current output unit 27 and is used as an emergency main unit. The power is supplied to the power source 43 and the emergency main power source 43 is charged.

  The secondary side of the switching transformer 15b is also a circuit for charging the emergency auxiliary power supply 32, and is connected to the emergency auxiliary power supply 32 via a resistor 31 that limits current. Therefore, the output from the DC / DC converter 15 is input to the emergency auxiliary power supply 32 via the resistor 31, and the emergency auxiliary power supply 32 is also charged.

  In addition to the main output winding, there is another output winding (auxiliary winding) on the secondary side of the switching transformer 15b, which includes a diode 21, a capacitor 26, and a power failure detection unit 22 (voltage detection circuit). ), A control power source 23, a control circuit 24, and the like are connected. This output winding is wound in the winding direction opposite to that of the secondary main output winding, that is, in the same winding direction as that of the primary side. A smoothing capacitor 26 is connected. Therefore, the power failure detection unit 22 can obtain a DC voltage output proportional to the primary winding through the diode 21 and the smoothing capacitor 26 from the output winding. Thereby, the power failure detection part 22 can monitor the behavior of the output of DC power supply (DC / DC converter 15), and can detect the power failure of an external power supply. The control circuit 24 includes a microcomputer and controls the overall operation of the lighting control unit 10a. For example, the control circuit 24 performs on / off control of each switching element included in the lighting control unit 10a. The control power source 23 functions as a power source that supplies stable power to the control circuit 24. When the external power supply is cut off and the control circuit 24 cannot receive power supply from the DC / DC converter 15, the control power supply 23 receives power supply from the emergency main power supply 43 via the diode 44, The control circuit 24 functions as a stable power source.

  When the external power supply is energized, the DC / DC converter 15 operates and supplies power to the constant current output unit 27, so that the power failure detection unit 22 receives the diode 21 from the switching transformer 15 b of the DC / DC converter 15. And the DC voltage output through the capacitor 26 is detected. As described above, when the power failure detection unit 22 detects the output of the DC / DC converter 15, that is, when the power failure detection unit 22 does not detect a power failure of the external power supply, the control circuit 24 controls the main power supply switching unit 42. Is turned on and the emergency switching unit 41 is turned off. The emergency switching unit 41 is a switching element such as a MOSFET and is connected to the light source 51.

  At this time, since the main power supply switching unit 42 is turned on, the emergency main power supply 43 is charged via the constant current output unit 27. However, since the emergency switching unit 41 is off, no current flows through the light source 51 and the light source 51 is not lit.

  The control circuit 24 turns off the main power supply switching unit 42 when charging of the emergency main power supply 43 is completed (when the emergency main power supply 43 is fully charged). Thereby, the charging of the emergency main power supply 43 can be temporarily stopped to prevent overcharging.

  Thereafter, the control circuit 24 monitors the voltage of the emergency main power supply 43 so that when the emergency main power supply 43 is not fully charged due to self-discharge, the main power supply 43 is supplementarily charged. On / off control of the switching unit 42 is performed.

  Since not only the emergency main power supply 43 but also the emergency auxiliary power supply 32 is connected to the secondary side (winding of the main output) of the switching transformer 15b of the DC / DC converter 15 via the resistor 31, The power source 32 is also charged.

  At this time, the light source 51 is not turned on because the emergency switching unit 41 is off regardless of whether the auxiliary power source switching unit 33 is on or off. The auxiliary power supply switching unit 33 is a switching element such as a MOSFET, and is connected between the emergency auxiliary power supply 32 and the light source 51.

  Next, the operation of the lighting control unit 10a when the commercial power supply 11 is interrupted when the function selector switch 25 is set to the commercial power supply mode, that is, when the commercial power supply 11 is connected as an external power supply will be described. To do.

  The control circuit 24 receives from the function selector switch 25 a signal notifying that the current mode is the commercial power supply mode. Thereby, the microcomputer of the control circuit 24 recognizes that the current mode is the commercial power supply mode.

  When the commercial power supply 11 fails, the operation of the DC / DC converter 15 stops and the output from the switching transformer 15b of the DC / DC converter 15 is lost, so the power failure detection unit 22 detects the power failure of the commercial power supply 11. Thus, when the power failure detection unit 22 detects a power failure and the current mode is the commercial power supply mode, the control circuit 24 turns on the emergency switching unit 41. The main power supply switching unit 42 is kept on, and the auxiliary power supply switching unit 33 is turned off.

  At this time, since the emergency switching unit 41 is on, a current flows through the light source 51, and the light source 51 is lit up. Since the main power source switching unit 42 is on and the auxiliary power source switching unit 33 is off, the light source 51 is turned on by supplying power from the emergency main power source 43. There is no power supply from the emergency auxiliary power supply 32.

  The emergency main power supply 43 is a storage battery having a battery voltage and capacity that can continuously turn on the light source 51 at a specified brightness for a period of time determined by law if it is sufficiently charged.

  Next, when the function selector switch 25 is set to the temporary power supply mode, that is, when the temporary power supply 12 is connected as the external power supply, the operation of the lighting control unit 10a when the temporary power supply 12 is cut off. explain.

  The control circuit 24 receives from the function changeover switch 25 a signal notifying that the current mode is the temporary power supply mode. Thereby, the microcomputer of the control circuit 24 recognizes that the current mode is the temporary power supply mode.

  When the temporary power supply 12 is cut off, the operation of the DC / DC converter 15 stops and the output from the switching transformer 15b of the DC / DC converter 15 is lost, so the power failure detection unit 22 shuts off the temporary power supply 12 (power failure). Detect. Thus, when the power failure detection unit 22 detects a power failure and the current mode is the temporary power mode, the control circuit 24 turns on the emergency switching unit 41, turns off the main power switching unit 42, and turns on the auxiliary power switching unit. Turn on 33.

  At this time, since the emergency switching unit 41 is on, a current flows through the light source 51, and the light source 51 is lit up. Since the main power source switching unit 42 is off and the auxiliary power source switching unit 33 is on, the light source 51 is turned on by supplying power from the emergency auxiliary power source 32. There is no power supply from the emergency main power supply 43.

  Assume that the emergency auxiliary power supply 32 is a storage battery having a battery voltage and capacity selected so that the light source 51 can be turned on with appropriate brightness for several minutes, for example, if it is sufficiently charged. Appropriate brightness is the same brightness as when the light source 51 is turned on by the power supply from the emergency main power supply 43 or a different brightness, but usually the dimming rate is lowered. is there.

  Since the emergency auxiliary power supply 32 is an auxiliary power supply, a battery (for example, a nickel-cadmium battery) that is highly durable and can be used even in a high-temperature environment is selected as the emergency auxiliary power supply 32. do not have to. Rather, as the emergency auxiliary power source 32, a battery suitable for an application that repeats rapid charging and discharging, such as that used in portable devices, can be selected to shorten the charging time. Moreover, since a battery with high versatility can be used, cost can be suppressed.

  When the external power supply is energized, the main power supply switching unit 42 is turned on, and when the external power supply is shut off, the main power supply switching unit 42 is turned off. Therefore, the emergency main power supply 43 is charged only when the external power supply is energized. Unlike the power supply 32, the battery reaches a fully charged state over a maximum of two days. In the present embodiment, while the temporary power supply 12 is being used, it is unnecessary since the emergency main power supply 43 is not charged and discharged after the emergency main power supply 43 is fully charged. Degradation of the emergency main power supply 43 due to charging / discharging can be avoided.

  When the temporary power supply 12 is used, it is not necessary to cause the lighting device 10 to function as a disaster prevention lamp yet, so it is not necessary to turn on the light source 51 for a specified time during a power failure. When working with the temporary power supply 12 every day, the emergency auxiliary power supply 32 can be charged rapidly at the start of work. Therefore, when the worker turns off the temporary power supply 12 at the end of work, the power supply from the emergency auxiliary power supply 32 is supplied. By turning on the light source 51, sufficient illumination can be obtained.

  After the commercial power supply 11 is connected as the external power supply, the function selector switch 25 is set to the commercial power supply mode so that the lighting device 10 functions as a disaster prevention light, and power is supplied from the emergency main power supply 43 in the event of a power failure. Thus, the light source 51 can be turned on for a specified time.

  In the present embodiment, the function selector switch 25 is provided as a manual switch for each lighting device 10 and is manually operated one by one. It is desirable that the appearance and arrangement of the function selector switch 25 be conspicuous so that a construction contractor or the like does not forget to change the mode setting when the lighting device 10 is connected to the commercial power supply 11. Note that an inspection switch connected to the plurality of lighting devices 10 may be used as the function changeover switch 25. In this case, when the function is switched by operating the inspection switch (function switching switch 25), only one-way switching from the temporary power supply mode to the commercial power supply mode is performed (for example, the configuration of the function switching switch 25 is (The configuration is such that switching from the commercial power supply mode to the temporary power supply mode cannot be performed physically or electrically). In this way, after the construction is completed, the inspection switch (function changeover switch 25) is erroneously operated by a person other than a construction contractor (for example, a construction manager or a power supply manager), and the temporary power supply is switched from the commercial power supply mode. Switching to the mode can be prevented.

  When the function changeover switch 25 is provided as a manual switch for each lighting device 10, the switch is provided with a key (for example, a switch of model number “SK-12ABKB4” manufactured by Nippon Switchgaku Kogyo Co., Ltd.), or The switch itself may be used as a key (when the key is inserted, the control circuit 24 of the lighting apparatus 10 detects it and recognizes that it has switched to the temporary power supply mode). By doing so, it is possible to prevent anyone other than a construction contractor (for example, a construction manager or a power supply manager) from operating the function changeover switch 25, and the function changeover switch 25 is intentionally or mistakenly outside the construction period. It can be prevented that the light source 51 of the lighting device 10 is not turned on in an emergency.

  In addition, in order to prevent forgetting to switch the function selector switch 25, the function selector switch 25 is set to the temporary power supply mode and the external power source is energized for a predetermined period (for example, three days or more). When the control circuit 24 continues, the control circuit 24 makes the lighting state of the light source 51 different from normal, such as blinking, light and dark, or the inspection monitor of the battery (for example, the emergency main power supply 43 or the emergency auxiliary power supply 32). The lighting state may be blinked, light or dark, etc., and notified to a construction contractor (for example, a construction manager or a power supply manager) or other users.

  In addition, in order to prevent forgetting to switch the function selector switch 25, the function selector switch 25 is set to the temporary power supply mode and the external power source is energized for a predetermined period (for example, three days or more). In the subsequent case, the control circuit 24 may automatically switch from the temporary power supply mode to the commercial power supply mode.

  As described above, according to the present embodiment, the lighting device 10 that can fully demonstrate the original performance of the emergency main power supply 43 after completion without deterioration of the emergency main power supply 43 before the completion of the building. Can be provided. Since the emergency main power supply 43 is not discharged and charged unnecessarily, energy for charging the emergency main power supply 43 can be saved.

  Even when the commercial power supply 11 is used as an external power supply, if a power outage that is different from that in an emergency occurs, the temporary power supply mode is used to avoid useless use of the emergency main power supply 43. can do. For example, when a planned power outage of the commercial power supply 11 occurs, the light source 51 is turned on by supplying power from the emergency auxiliary power supply 32 during the planned power outage by switching the function selector switch 25 to the temporary power supply mode in advance. Thereby, deterioration of the emergency main power supply 43 can be prevented.

  FIG. 2 is a table showing a relationship between charging / discharging of the battery of the lighting device 10 and an external power source.

  As shown in FIG. 2, in the present embodiment, as long as the external power supply is energized, the emergency main power supply 43 is preferentially charged, and if the external power supply is a commercial power supply 11 when the external power supply fails, The light source 51 is turned on by supplying power from the emergency main power supply 43. If the external power supply is the temporary power supply 12 when the external power supply fails, the light source 51 is turned on by supplying power from the emergency auxiliary power supply 32. . Further, as described above, the light source 51 can be turned on by supplying power from the emergency auxiliary power supply 32 when a planned power failure occurs. By doing in this way, deterioration of the emergency main power supply 43 can be prevented. Further, as a regular emergency lighting, when the power failure continues after the emergency main power supply 43 is discharged, if power is continuously supplied from the emergency auxiliary power supply 32, a long-time emergency lighting ( Akari) can be provided.

  In addition, in this Embodiment, although the illuminating device 10 is emergency lighting (disaster prevention light), the illuminating device 10 may be illuminations other than emergency lighting (for example, a guide light). In the present embodiment, the light source 51 is turned on only when the external power supply is interrupted (that is, in an emergency), but the light source 51 may be turned on also when the external power supply is energized.

Embodiment 2. FIG.
In the present embodiment, differences from the first embodiment will be mainly described.

  FIG. 3 is a circuit block diagram illustrating a configuration of the illumination device 10 according to the present embodiment.

  In FIG. 3, the illumination device 10 includes an emergency main power supply 43, an emergency auxiliary power supply 32, a light source 51, a function changeover switch 25, and a lighting control unit 10a, as in the first embodiment.

  In the present embodiment, in the lighting control unit 10a, the constant current output unit 27 is provided with a resistor 27b connected in parallel with the resistor 27a. A switching element 27c such as a MOSFET is connected in series to the resistor 27b. When the switching element 27c is turned on, the charging current of the emergency main power supply 43 becomes a large current, and when the switching element 27c is turned off, the charging current of the emergency main power supply 43 becomes a small current. The configuration of the constant current output unit 27 is not limited to that shown here, and any configuration may be employed as long as the magnitude of the current for charging the emergency main power supply 43 can be switched. be able to.

  When the external power supply is energized, the control circuit 24 turns on the main power supply switching unit 42, turns off the emergency switching unit 41, and turns on the switching element 27c of the constant current output unit 27.

  At this time, since the switching element 27c of the constant current output unit 27 is turned on, the emergency main power supply 43 is charged by a large current flowing from the constant current output unit 27.

  The control circuit 24 keeps the main power supply switching unit 42 turned on at the time when the charging of the emergency main power supply 43 is completed (for example, when the temporary power supply 12 is energized for the first time or the second time). The switching element 27c is turned off. Thus, trickle charging of the emergency main power supply 43 can be performed with a small current flowing from the constant current output unit 27.

  When the external power source is the temporary power source 12, the emergency main power source 43 is not discharged to turn on the light source 51 as in the first embodiment. Therefore, the trickle charging of the emergency main power source 43 is performed as described above. By doing so, the emergency main power supply 43 can be kept fully charged until the laying work of the commercial power supply 11 is completed (several months). Therefore, deterioration of the emergency main power supply 43 can be prevented more reliably.

  The control circuit 24 monitors the stored voltage of the emergency main power supply 43 after the emergency main power supply 43 has been charged, and turns on / off the main power supply switching unit 42 and the switching element 27c of the constant current output unit 27. Supplementary charging such as trickle charging, pulse trickle charging, or intermittent charging may be performed by appropriately combining the on / off of. Thereby, the life of the emergency main power supply 43 can be extended.

  As described above, whether the auxiliary charging of the emergency main power supply 43 is performed by trickle charging, pulse trickle charging, intermittent charging or the like depends on the use of the lighting device 10, the capacity of the emergency main power supply 43, the type of battery, etc. What is necessary is just to select suitably in consideration of the cost etc. of the circuit of the lighting control part 10a.

  In the first embodiment, the lighting control unit 10a includes, as the power failure detection unit 22, a voltage detection circuit that monitors the output of the auxiliary winding provided on the secondary side of the switching transformer 15b of the DC / DC converter 15. . On the other hand, in the present embodiment, the lighting control unit 10a directly monitors the power supply on the primary side as the power failure detection unit 22, and outputs a power failure signal indicating whether or not a power failure has been detected to the control circuit 24. A photocoupler is provided.

  As described above, whether the power failure detection unit 22 is provided on the primary side or the secondary side depends on the use of the lighting device 10, the capacity of the emergency main power supply 43, etc., and the cost of the circuit of the lighting control unit 10 a. These may be selected as appropriate.

Embodiment 3 FIG.
In the present embodiment, differences from the first embodiment will be mainly described.

  FIG. 4 is a circuit block diagram showing the configuration of the illumination device 10 according to the present embodiment.

  In the first embodiment, the lighting control unit 10a turns on the light source 51 only when the external power supply fails. On the other hand, in the present embodiment, when the external power supply has not failed, the lighting control unit 10a turns on the light source 51 by supplying power from the external power supply.

  In FIG. 4, a light source 51 is a fluorescent lamp, and is lit by a ballast 61 during normal use (when an external power source is energized), and a battery (emergency main power source) that is an emergency power source during an emergency (when an external power supply is interrupted) Emergency lighting is performed by a push-pull inverter 51a (lighting device) driven by power supply from the power source 43 or the emergency auxiliary power source 32).

  When the external power supply is energized (during normal use), power is supplied from the external power supply to the DC / DC converter 15 via the line filter 13 and the rectifying / smoothing circuit 14 as in the first embodiment, and the DC / DC converter 15 Outputs a DC voltage to the secondary side. Thereby, the DC / DC converter 15 charges the emergency main power supply 43 through the constant current output unit 27 and charges the emergency auxiliary power supply 32 through the resistor 31.

  A coil of a relay 51c is connected to the output side of the DC / DC converter 15 via a switching element 28. The switching element 28 is turned on by the control circuit 24, and power is supplied from the DC / DC converter 15 to the relay 51c. Is done. At this time, the contact a of the relay 51c is connected, and the light source 51 is lit by the ballast 61.

  On the other hand, when the external power supply is out of power (in an emergency), the switching element 28 is turned off by the control circuit 24 and power is not supplied from the DC / DC converter 15 to the relay 51c, so that the b contact of the relay 51c is connected. The light source 51 is turned on by a push-pull inverter 51a.

  In the push-pull inverter 51a, one end of a resistor 51b is connected to the base terminal of the transistor for oscillation operation, and the other end of the resistor 51b is connected to the emergency switching unit 41. When the external power supply is energized, the emergency switching unit 41 is off and no current flows through the resistor 51b, so the push-pull inverter 51a does not perform an oscillation operation. When the external power supply is interrupted, the emergency switching unit 41 is turned on, and a current flows through the resistor 51b. Therefore, the push-pull inverter 51a performs an oscillating operation and supplies power for emergency lighting to the light source 51 via the transformer 51d. Supply.

  In the present embodiment, the lighting control unit 10a includes a wall switch 17 that can be manually switched on / off in addition to the inspection switch 16 for confirming the operation during emergency lighting. When the wall switch 17 is turned off, the ballast 61 stops and the light source 51 is turned off. At this time, when the external power supply is energized, the emergency switching unit 41 is off, so that the push-pull inverter 51a does not oscillate as described above. Therefore, the light-off state of the light source 51 can be maintained.

Embodiment 4 FIG.
In the present embodiment, differences from the first embodiment will be mainly described.

  FIG. 5 is a circuit block diagram showing a configuration of lighting apparatus 10 according to the present embodiment.

  In the first embodiment, the lighting control unit 10a turns on the light source 51 only when the external power supply fails. On the other hand, in the present embodiment, as in the third embodiment, when the external power source is not out of power, the lighting control unit 10a turns on the light source 51 by supplying power from the external power source.

  In FIG. 5, the light source 51 is an LED module.

  In the present embodiment, in the DC / DC converter 15, a winding for turning on the light source 51 during normal use (main output winding during normal use) is provided on the secondary side of the switching transformer 15b. A DC voltage is output from the winding through a rectifying diode 71 and a smoothing capacitor 73. This output is converted to a constant current by the constant current output unit 72 and input to the light source 51, and the light source 51 is turned on. The constant current output unit 72 includes a resistor 72a, for example.

  In the present embodiment, the lighting control unit 10a is driven by power supplied from a battery (emergency main power supply 43 or emergency auxiliary power supply 32) that is an emergency power supply in an emergency, and turns on the light source 51. 52.

  In FIG. 5, the power source of the control IC 15c of the DC / DC converter 15 (the power source for control IC 15a in the first embodiment) is omitted. However, as shown in FIG. A control IC 15c that can continue the operation by supplying power from the transformer 15b can be used.

  In the present embodiment, the inspection switch 16 is connected to the control circuit 24, and a signal that simulates an operation equivalent to the operation in an emergency is input from the inspection switch 16 to the control circuit 24. .

  In the present embodiment, the lighting control unit 10a directly monitors the power supply on the primary side as the power failure detection unit 22, and transmits a power failure signal indicating whether or not a power failure has been detected via the photocoupler. Power failure detection circuit that outputs to

  When the external power supply is energized (during normal use), power is supplied from the external power supply to the DC / DC converter 15 via the line filter 13 and the rectifying / smoothing circuit 14 as in the first embodiment, and the DC / DC converter 15 Outputs a DC voltage to the secondary side. Thereby, the DC / DC converter 15 charges the emergency main power supply 43 through the constant current output unit 27 and charges the emergency auxiliary power supply 32 through the resistor 31.

  As described above, the constant current output unit 72 is connected to the output side of the DC / DC converter 15, and power is supplied from the DC / DC converter 15 via the constant current output unit 72, and the light source 51 is turned on. .

  When the external power supply is energized, the emergency switching unit 41 is off, and the control IC 53 of the DC / DC converter 52 does not perform the oscillation operation.

  When the external power supply is interrupted (emergency), power is not supplied from the constant current output unit 72 to the light source 51. However, when the function changeover switch 25 is set to the commercial power supply mode, that is, when the commercial power supply 11 is connected as an external power supply, the emergency switching unit 41 is turned on, the main power supply switching unit 42 is turned on, and auxiliary Since the power supply switching unit 33 is turned off, power is supplied from the emergency main power supply 43 to the DC / DC converter 52. Then, the DC / DC converter 52 boosts the output from the emergency main power supply 43 by the oscillation operation, and the light source 51 is lit for a specified time with a specified brightness. When the function changeover switch 25 is set to the temporary power supply mode, that is, when the temporary power supply 12 is connected as an external power supply, the emergency switching unit 41 is turned on, the main power supply switching unit 42 is turned off, and auxiliary Since the power supply switching unit 33 is turned on, power is supplied from the emergency auxiliary power supply 32 to the DC / DC converter 52. Then, the DC / DC converter 52 boosts the output from the emergency auxiliary power supply 32 by an oscillating operation, and turns on the light source 51 with a suitable brightness for several minutes or more. At this time, since the main power supply switching unit 42 is turned off, there is no unnecessary discharge from the emergency main power supply 43, and the emergency main power supply 43 is not charged / discharged. The battery can be made longer, and charging is unnecessary, so that power can be saved.

Embodiment 5 FIG.
In the present embodiment, differences from the first embodiment will be mainly described.

  FIG. 6 is a circuit block diagram showing a configuration of the illumination system according to the present embodiment.

  In FIG. 6, the lighting system includes a lighting device 10 and a control device 90.

  The control device 90 is a remote controller and includes a user interface unit 91 and a communication unit 92.

  The user interface unit 91 is a touch panel, a button, or the like, and accepts an operation for designating one of the commercial power source 11 and the temporary power source 12 (an example of a power source other than the commercial power source 11) as an external power source.

  If the power supply designated via the user interface unit 91 is the commercial power supply 11, the communication unit 92 transmits a signal designating the commercial power supply mode to the lighting device 10. In addition, if the power supply designated via the user interface unit 91 is the temporary power supply 12, the communication unit 92 transmits a signal designating the temporary power supply mode to the lighting device 10.

  The illuminating device 10 includes a remote control light receiving unit 25a instead of the function changeover switch 25 in the first embodiment.

  The remote control light receiving unit 25a receives a signal transmitted from the communication unit 92 of the control device 90, and selects a mode specified by the received signal. The remote control light receiving unit 25a is an example of a selection unit that selects one of a commercial power supply mode and a temporary power supply mode.

  In addition, the control apparatus 90 may transmit the signal for performing the separate automatic inspection of the illuminating device 10 to the illuminating device 10 similarly to the signal which designates a mode.

  Moreover, the control apparatus 90 may communicate with the illuminating device 10 not with radio | wireless but with a wire communication. The communication method between the control device 90 and the lighting device 10 is not limited to wireless and wired, and any method can be applied.

Embodiment 6 FIG.
In the present embodiment, differences from the fifth embodiment will be mainly described.

  FIG. 7 is a diagram illustrating a configuration example of the illumination system according to the present embodiment.

  In FIG. 7, the control device 90 is a device (for example, a personal computer) that has an automatic inspection function for a plurality of lighting devices 10 and is installed in a centralized control room.

  Although not shown, the control device 90 includes a user interface unit 91 and a communication unit 92 as in the fifth embodiment.

  The user interface unit 91 is a display, a keyboard, a mouse, or the like, and accepts an operation for designating one of the commercial power supply 11 and the temporary power supply 12 (an example of a power supply other than the commercial power supply 11) as an external power supply. In addition, the user interface unit 91 receives an operation for designating the planned power outage mode. The planned power outage mode is another example of the second mode. The planned power failure mode may be replaced with a temporary power supply mode.

  If the power supply designated via the user interface unit 91 is the commercial power supply 11, the communication unit 92 transmits a signal designating the commercial power supply mode to the lighting device 10. In addition, if the power supply designated via the user interface unit 91 is the temporary power supply 12, the communication unit 92 transmits a signal designating the temporary power supply mode to the lighting device 10. In addition, when the planned power failure mode is designated via the user interface unit 91, the communication unit 92 transmits a signal designating the planned power failure mode to the lighting device 10.

  For example, when a planned power outage occurs due to worsening power conditions, the function should be switched so that the light will be turned on in the planned power outage mode only when there is no light or where the appropriate light is obtained by sunlight etc. Thus, the battery can be prevented from deteriorating rather than being charged / discharged at each planned power outage, and the life can be extended.

  For example, suppose that as the lighting device 10, fixtures A1, B1, and B2 are installed in a place where the brightness can be secured, and fixtures C1 and E are installed in a location where the brightness cannot be secured. In addition, it is assumed that one planned power outage is performed for a maximum of 3 hours. In this case, a backup power supply for 3 hours is connected to the control device 90 in the central control room, and the user interface unit 91 of the control device 90 is connected to only the appliances A1, B1, and B2 immediately before the planned power outage occurs. The operation for designating the planned power failure mode is performed (the commercial power supply 11 is connected to the appliances A1, B1, and B2 but corresponds to the operation for designating the temporary power supply 12). Thereby, the appliances A1, B1, and B2 are lit by the emergency auxiliary power source 32 for several minutes from the start of the planned power outage. On the other hand, the appliances C1 and E are lit by the emergency main power supply 43 for a certain period from the start of the planned power outage. In this example, the deterioration of the emergency main power supply 43 can be prevented for the appliances A1, B1, and B2.

  If an actual power outage occurs after performing an operation to specify the planned power outage mode via the user interface unit 91 of the control device 90, the lighting system detects this by terrestrial digital broadcasting or emergency broadcast. However, emergency lighting may be performed automatically. For example, in such a case, since the construction has already been completed (construction is completed), an operator or the like who is resident in the central control room operates the control device 90 to emergency light all the lighting devices 10 from the control device 90 A signal indicating that is transmitted.

  As mentioned above, although embodiment of this invention was described, you may implement in combination of 2 or more among these embodiment. Alternatively, one of these embodiments may be partially implemented. Alternatively, two or more of these embodiments may be partially combined. In addition, this invention is not limited to these embodiment, A various change is possible as needed.

  In the description of each embodiment, an example in which nickel-hydrogen storage batteries are used for the emergency main power supply 43 and the emergency auxiliary power supply 32 is assumed, but other types of secondary batteries such as lithium ion batteries are used. It may be used.

  DESCRIPTION OF SYMBOLS 10 Illuminating device, 10a Lighting control part, 11 Commercial power supply, 12 Temporary power supply, 13 Line filter, 14 Rectifier smoothing circuit, 15 DC / DC converter, 15a Control IC power supply, 15b Switching transformer, 15c Control IC, 15d Switching element, 15e diode, 15f capacitor, 16 inspection switch, 17 wall switch, 18 terminal block, 21 diode, 22 power failure detection unit, 23 control power supply, 24 control circuit, 25 function selector switch, 25a remote control light receiving unit, 26 capacitor, 27 constant current Output part, 27a resistance, 27b resistance, 27c switching element, 28 switching element, 31 resistance, 32 emergency auxiliary power source, 33 auxiliary power source switching part, 41 emergency switching part, 42 main power source switching part, 43 emergency main power source, 44 diode , 45 diode, 51 light source, 51a push-pull inverter, 51b resistor, 51c relay, 51d transformer, 52 DC / DC converter, 53 control IC, 61 ballast, 71 diode, 72 constant current output unit, 72a resistor, 73 capacitor, 90 control device, 91 user interface unit, 92 communication unit.

Claims (5)

A first power source charged by power supply from an external power source;
A second power source that is charged in a shorter time than the first power source ;
And a light source,
A selection unit for selecting one of a first mode in which a commercial power source is connected as the external power source and a second mode in which a temporary power source is connected as the external power source ;
When the external power supply fails, if the first mode is selected by the selection unit, the light source is turned on by supplying power from the first power source, and the second mode is selected by the selection unit. For example, even if a power failure of the external power source continues after the light source is turned on by supplying power from the second power source and the second power source is discharged, the selection unit selects the second mode. An illumination device comprising: a lighting control unit that does not light the light source by supplying power from a first power source .   The selection unit receives a signal designating one of the first mode and the second mode from an external control device, and selects a mode designated by the received signal. Item 2. The lighting device according to item 1.   The lighting device according to claim 1, wherein the selection unit is a switch that is manually operated to switch between the first mode and the second mode by a user.   The lighting device according to any one of claims 1 to 3, wherein the lighting control unit turns on the light source by supplying power from the external power supply when the external power supply is not out of power. The lighting device of claim 1;
A user interface unit that accepts an operation for designating one of a commercial power source and a temporary power source as the external power source, and the first mode is designated if the power source designated via the user interface unit is a commercial power source A control unit that includes a communication unit that transmits a signal for specifying the second mode to the lighting device if the power source specified via the user interface unit is a temporary power source. With
The selection unit of the lighting device receives a signal transmitted from the communication unit of the control device, and selects a mode specified by the received signal.

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