Emergency lighting device

Abstract

An object of the present disclosure is to suppress occurrence of a failure when an inspection is automatically performed.SOLUTION: The control circuit unit 14 that is executing the continuous turn-off mode controls the regular lighting circuit unit 120 to turn off the light source 10. During execution of the inspection mode, the control circuit unit 14 causes the charging circuit unit 121 to stop charging the secondary battery 11 and controls the emergency lighting circuit unit 13 to light the light source 10. When the energization time of the secondary battery 11 measured by the timer 15 reaches a predetermined time, the control circuit 14 executes the inspection mode if the normal lighting mode is being executed. When the energization time measured by the time measuring unit 15 reaches a predetermined time, the control circuit unit 14 does not execute the inspection mode and continues to execute the always-off mode if the always-off mode is being executed.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an emergency lighting device, and more particularly to an emergency lighting device that is equipped with a secondary battery and provides lighting in an emergency. [Background technology]

[0002] As a conventional example, we will take the emergency lighting device described in Patent Document 1 as an example. The emergency lighting device described in Patent Document 1 (hereinafter referred to as the conventional example) includes a light source, a lighting circuit that turns on the light source, a battery that supplies power to the lighting circuit during a power outage or during inspection, a charging circuit that constantly charges the battery, and an inspection control unit that controls the device to enter an inspection mode in which the light source is turned on by power supply from the battery through external operation or external signal input.

[0003] The inspection control unit can execute the inspection mode by a wireless signal from an external remote control, etc. The inspection control unit can also communicate with an external control panel via wired or wireless communication, and can execute the inspection mode by receiving commands from the control panel, including inspection commands based on a preset schedule. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-204409 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, the Fire Service Act allows facilities such as theaters, movie theaters, and planetariums to turn off emergency lighting devices (guide lights) during times when darkness is particularly required, such as during a performance in a theater or a screening in a movie theater.

[0006] However, in the above-described conventional example, there is a risk that the inspection will be carried out during the period when the lights are off.

[0007] An object of the present disclosure is to provide an emergency lighting device that can suppress the occurrence of malfunctions when performing automatic inspections. [Means for solving the problem]

[0008] An emergency lighting device according to one aspect of the present disclosure includes a light source, a secondary battery, a normal lighting circuit unit that lights the light source using normal power supplied from a normal power source, and a charging circuit unit that charges the secondary battery using the normal power. The emergency lighting device also includes an emergency lighting circuit unit that lights the light source using emergency power supplied from the secondary battery, a control circuit unit that controls the normal lighting circuit unit, the charging circuit unit, and the emergency lighting circuit unit, and a timer unit that measures the power-on time of the secondary battery. The control circuit unit is configured to selectively switch between a normal lighting mode, an emergency lighting mode, a normal light-off mode, and an inspection mode. The control circuit unit, when executing the normal lighting mode, controls the normal lighting circuit unit to turn on the light source. The control circuit unit, when executing the emergency lighting mode, controls the emergency lighting circuit unit to turn on the light source. The control circuit unit, when executing the normal light-off mode, controls the normal lighting circuit unit to turn off the light source. The control circuit unit, while executing the inspection mode, controls the charging circuit unit to stop charging the secondary battery and controls the emergency lighting circuit unit to turn on the light source. When the power-on time measured by the timer unit reaches a predetermined time, the control circuit unit executes the inspection mode if the normal lighting mode is being executed. When the power-on time measured by the timer unit reaches a predetermined time, the control circuit unit continues to execute the constant-off mode without executing the inspection mode if the constant-off mode is being executed. [Effects of the Invention]

[0009] The emergency lighting device of the present disclosure has the advantage of being able to suppress the occurrence of malfunctions when performing automatic inspections. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a block diagram of an emergency lighting device according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a block diagram of a third modification of the emergency lighting device. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an emergency lighting device A1 according to an embodiment of the present disclosure will be described in detail with reference to the drawings. However, the configuration described in the following embodiment is merely an example of the present disclosure. The present disclosure is not limited to the following embodiment, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0012] (1) Overview The emergency lighting device A1 according to the embodiment includes a light source 10, a secondary battery 11, a normal lighting circuit unit 120, a charging circuit unit 121, an emergency lighting circuit unit 13, a control circuit unit 14, and a timing unit 15 (see FIG. 1). The emergency lighting device A1 according to the embodiment is, for example, an emergency exit guide light. However, the emergency lighting device A1 according to the embodiment may be an emergency lighting device other than an emergency exit guide light, such as a stairway guide light or an emergency light.

[0013] The normal lighting circuit unit 120 lights the light source 10 with normal power supplied from the normal power source 9. The normal power source 9 is, for example, a commercial power system with an effective value of 100V or 200V. The charging circuit unit 121 charges the secondary battery 11 with the normal power. The emergency lighting circuit unit 13 lights the light source 10 with emergency power supplied from the secondary battery 11. The control circuit unit 14 controls the normal lighting circuit unit 120, the charging circuit unit 121, and the emergency lighting circuit unit 13. The timer unit 15 measures the power-on time of the secondary battery 11. In the present disclosure, the "power-on time of the secondary battery 11" refers to the time during which the secondary battery 11 is electrically connected to the charging circuit unit 121 and is in a chargeable state with normal power supplied from the normal power source 9, regardless of whether a charging current flows from the charging circuit unit 121 to the secondary battery 11. However, the timer 15 may measure the time during which the charging current flows from the charging circuit 121 to the secondary battery 11 as the current-carrying time.

[0014] Here, when emergency exit guide lights (hereinafter referred to as guide lights) are installed in theaters, movie theaters, planetariums, etc., the Fire Service Act allows them to be turned off during times when darkness is particularly required, such as during a performance in a theater or a movie in a movie theater. In the following description, turning off the light source 10 by the emergency lighting device A1 under the above-mentioned conditions may be referred to as being constantly off.

[0015] The control circuit unit 14 is configured to selectively switch between a normal lighting mode, an emergency lighting mode, a constant light-off mode, and an inspection mode. When the control circuit unit 14 is executing the normal lighting mode, it controls the normal lighting circuit unit 120 to turn on the light source 10. When the control circuit unit 14 is executing the emergency lighting mode, it controls the emergency lighting circuit unit 13 to turn on the light source 10. When the control circuit unit 14 is executing the constant light-off mode, it controls the normal lighting circuit unit 120 to turn off the light source 10. When the control circuit unit 14 is executing the inspection mode, it controls the charging circuit unit 121 to stop charging the secondary battery 11, and controls the emergency lighting circuit unit 13 to turn on the light source 10.

[0016] Furthermore, if the normal lighting mode is being executed, the control circuit unit 14 executes the inspection mode when the energization time counted by the timer unit 15 reaches a predetermined time. In other words, the emergency lighting device A1 according to the embodiment does not require manual work to start inspection, and the workload required for inspection can be reduced.

[0017] Furthermore, when the energization time measured by the timer 15 reaches a predetermined time, if the constant lights-out mode is being executed, the control circuit 14 continues the constant lights-out mode without executing the inspection mode. In other words, the emergency lighting device A1 according to the embodiment can prevent the occurrence of a problem in which an inspection is automatically executed during the constant lights-out mode.

[0018] (2) Details Next, an emergency lighting device A1 according to an embodiment will be described in detail with reference to the drawings. The emergency lighting device A1 according to the embodiment (hereinafter abbreviated as lighting device A1) is, for example, an emergency exit lighting device (emergency exit lighting device) installed at an emergency exit of a movie theater. However, the lighting device A1 may also be installed in facilities other than movie theaters, such as theaters and planetariums. Furthermore, the lighting device A1 may be an emergency light or a lighting device other than an emergency exit lighting device (for example, a stairway lighting device).

[0019] (2-1) Emergency lighting system configuration As shown in FIG. 1, the lighting device A1 includes a light source 10, a secondary battery 11, a rectifying and smoothing unit 16, a power supply unit 12, an emergency lighting circuit unit 13, a control circuit unit 14, a timing unit 15, a switching unit 17, a control power supply circuit unit 18, a detection circuit unit 20, and the like.

[0020] The light source 10 includes, for example, a light emitting diode. However, the light source 10 is not limited to a light emitting diode and may be a cold cathode fluorescent lamp or the like. The light source 10 is configured to illuminate a panel on which an evacuation guidance pictogram is formed, by light emitted from the light emitting diode.

[0021] The secondary battery 11 is, for example, a nickel-metal hydride secondary battery, but may also be a lithium-ion secondary battery.

[0022] The rectifying smoothing unit 16 is configured to rectify and smooth the AC voltage supplied from the utility power supply 9. For example, the rectifying smoothing unit 16 has a full-wave rectifier made up of a diode bridge and a smoothing capacitor that smooths the pulsating voltage output from the full-wave rectifier. However, the rectifying smoothing unit 16 may have a power factor correction circuit made up of a boost chopper circuit or the like in addition to the full-wave rectifier and smoothing capacitor.

[0023] The power supply unit 12 has a flyback converter that steps down the DC voltage input from the rectifying and smoothing unit 16, a normal lighting circuit unit 120, and a charging circuit unit 121. The normal lighting circuit unit 120 is configured to light the light source 10 with the DC voltage stepped down by the flyback converter. The charging circuit unit 121 is configured to charge the secondary battery 11 with the DC voltage stepped down by the flyback converter. The charging circuit unit 121 may charge the secondary battery 11 by continuously supplying a constant charging current to the secondary battery 11. Alternatively, the charging circuit unit 121 may charge the secondary battery 11 by intermittently (pulsatingly) supplying a constant charging current to the secondary battery 11.

[0024] The emergency lighting circuit section 13 is configured to light the light source 10 with a direct current discharged from the secondary battery 11 .

[0025] The switching unit 17 is configured to selectively switch between a connection state in which the normal lighting circuit unit 120 and the light source 10 are electrically connected, and a non-connection state in which the normal lighting circuit unit 120 and the light source 10 are electrically disconnected.

[0026] The detection circuit unit 20 is configured to detect the electrical connection state between the charging circuit unit 121 and the secondary battery 11. For example, the detection circuit unit 20 determines that the connection is complete when a current (charging current or detection current) flows from the charging circuit unit 121 to the secondary battery 11, and determines that the connection is incomplete when a state in which no current flows from the charging circuit unit 121 to the secondary battery 11 continues for a certain period of time. Alternatively, the detection circuit unit 20 may be configured to monitor the voltage between a pair of terminals electrically connected to the positive and negative electrodes of the secondary battery 11, and detect the connection state or the connection incomplete state based on the voltage between the terminals.

[0027] The control power supply circuit unit 18 is configured to generate a control power supply voltage from the DC voltage output from the flyback converter of the power supply unit 12 and the discharge voltage of the secondary battery 11. The control power supply voltage generated by the control power supply circuit unit 18 is supplied to circuits having active elements, namely, the power supply unit 12, the switching unit 17, the emergency lighting circuit unit 13, the control circuit unit 14, the timer unit 15, and the detection circuit unit 20.

[0028] The control circuit unit 14 has a microcontroller. The control circuit unit 14 is configured to cause the processor of the microcontroller to execute a control program, thereby performing various processes, which will be described later.

[0029] The timekeeping unit 15 has a timer IC (Integrated Circuit). That is, the timekeeping unit 15 is configured to measure the elapsed time from an arbitrary point in time using the timer IC. However, the timekeeping unit 15 may be realized by a timer function installed in a microcontroller included in the control circuit unit 14.

[0030] The timing unit 15 measures the power-on time of the secondary battery 11. When the power-on time reaches a predetermined time (e.g., three months), the timing unit 15 outputs an inspection start signal to the control circuit unit 14. The power-on time means the time (accumulated time) during which the secondary battery 11 is in a chargeable state. For example, the timing unit 15 causes the timer IC to count (measure time) when the detection result of the detection circuit unit 20 indicates a connection-completed state and when regular power is being supplied from the regular power source 9. On the other hand, when the detection result of the detection circuit unit 20 indicates a connection-incomplete state or when regular power is not being supplied from the regular power source 9, the timing unit 15 causes the timer IC to stop counting (measure time).

[0031] (2-2) Basic operation of emergency lighting devices Next, the basic operation of the lighting device A1 will be described. The control circuit unit 14 is configured to selectively switch between four operation modes (normal lighting mode, emergency lighting mode, constant light-off mode, and inspection mode).

[0032] The control circuit unit 14 basically operates in the normal lighting mode when normal power is being supplied from the normal power supply 9. When the control circuit unit 14 is operating in the normal lighting mode, it switches the switching unit 17 to the connected state, causes the normal lighting circuit unit 120 to turn on the light source 10, and causes the charging circuit unit 121 to charge the secondary battery 11.

[0033] Furthermore, the control circuit unit 14 executes the emergency lighting mode when normal power is no longer supplied from the normal power source 9 due to a power outage or the like. During execution of the emergency lighting mode, the control circuit unit 14 stops the power supply unit 12 and switches the switching unit 17 to a non-connected state, causing the emergency lighting circuit unit 13 to turn on the light source 10 (emergency lighting).

[0034] Furthermore, when an external light-off signal is input to the control circuit unit 14 while normal power is being supplied from the normal power supply 9, the control circuit unit 14 executes the normal light-off mode. While executing the normal light-off mode, the control circuit unit 14 stops the normal lighting circuit unit 120 and turns off the light source 10 while keeping the charging circuit unit 121 operating. Note that an external light-off signal is input to the control circuit unit 14 when, for example, a movie is being shown at a movie theater or when the theater is unoccupied, such as during the period between the closing time and the opening time of the theater (nighttime).

[0035] (2-3) Emergency lighting system inspection operation Furthermore, when the control circuit unit 14 receives an inspection start signal output from the timer unit 15 while the normal lighting mode is being executed, the control circuit unit 14 executes the inspection mode. While the control circuit unit 14 is executing the inspection mode, it stops the normal lighting circuit unit 120 and the charging circuit unit 121, switches the switching unit 17 to a disconnected state, and causes the emergency lighting circuit unit 13 to turn on the light source 10 (emergency lighting) for a predetermined inspection time (20 or 60 minutes for emergency lights, 30 or 60 minutes for emergency lights). The control circuit unit 14 monitors whether a predetermined current is flowing through the light source 10 during the inspection time, and determines whether the secondary battery 11 needs to be replaced by comparing the voltage of the secondary battery 11 after the inspection time has ended with a threshold value. If an abnormality (a malfunction of the light source 10 or a need for replacement of the secondary battery 11) is detected during the inspection, the control circuit unit 14 notifies the user of the abnormality by, for example, flashing an indicator LED.

[0036] After the inspection time has elapsed, the control circuit unit 14 switches from the inspection mode to the normal lighting mode and executes the normal lighting mode.

[0037] Furthermore, the timer 15 resets the counting of the energized time after the end of the inspection time (immediately after the end of the inspection time or after a certain time (e.g., the time required to fully charge the secondary battery 11) has elapsed since the end of the inspection time) and starts counting the energized time anew. This allows the lighting device A1 to automatically perform inspections at regular intervals (e.g., every three months). The timer 15 may also reset the counting of the energized time when the period during which the emergency lighting circuit 13 turns on the light source 10 in an emergency (the period of emergency lighting during a power outage and during inspection) exceeds a predetermined time (e.g., several seconds to several tens of seconds). In other words, since the control circuit 14 executes the emergency lighting mode to discharge the secondary battery 11, resetting the counting of the energized time by the timer 15 can prevent inspection from being performed before the secondary battery 11 is sufficiently charged.

[0038] Here, when control circuit unit 14 receives an inspection start signal from timer unit 15 while the constant lights-out mode is being executed, it continues to execute the constant lights-out mode without switching to the inspection mode. For example, during a movie screening in a movie theater, control circuit unit 14 executes the constant lights-out mode and turns off light source 10, so it is not preferable for control circuit unit 14, which receives an inspection start signal, to execute the inspection mode and turn on light source 10.

[0039] Thus, when the power-on time counted by the timer 15 reaches a predetermined time, if the lighting device A1 is in the constant off mode, the control circuit 14 does not execute the inspection mode but continues to execute the constant off mode, thereby preventing the occurrence of a problem in which inspection is automatically executed while the lighting device A1 is in the constant off mode.

[0040] However, when an inspection start signal is received from an external device, the control circuit unit 14 preferably executes the inspection mode regardless of whether the normal lighting mode or the constant lights-out mode is being executed. For example, the control circuit unit 14 may execute the constant lights-out mode to reduce power consumption during the period between the closing and opening of a movie theater. In this case, it is believed that no particular inconvenience will arise if the control circuit unit 14 executes the inspection mode and turns on the light source 10. Therefore, when an inspection start signal is given to the control circuit unit 14 from a manual remote controller or the like during the period between the closing and opening of a movie theater, the lighting device A1 can be inspected periodically by causing the control circuit unit 14 to execute the inspection mode.

[0041] The timer 15 may continue to count the power-on time even after the predetermined time has passed. In this case, it is preferable that the timer 15 corrects the power-on time based on the time that has passed since the predetermined time was passed. For example, if the predetermined time is passed while the lamp is in the constantly off mode, it is preferable that the timer 15 subtracts the time that has passed from the time that the predetermined time was passed until the control circuit 14 transitioned from the constantly off mode to the normal light mode from the power-on time.

[0042] As a result, even if the lighting device A1 has been turned on for a predetermined period of time while the lighting device A1 is turned off, the lighting device A1 can be inspected periodically at predetermined intervals, excluding the period when the lighting device A1 is turned off.

[0043] Incidentally, if the control circuit unit 14 receives a lights-out signal while the inspection mode is being executed, it executes the lights-out mode in priority to the inspection mode. For example, if a movie starts playing while the control circuit unit 14 is executing the inspection mode, the inspection mode can be interrupted and the lights-out mode executed, thereby preventing the occurrence of a problem in which an inspection is automatically executed while the lights are out.

[0044] (2-4) Modified emergency lighting device Next, several modified examples of the lighting device A1 according to the embodiment will be described. However, the basic configuration of the lighting device A1 in each of the modified examples described below is the same as the basic configuration of the lighting device A1 according to the embodiment. Therefore, the same reference numerals will be used to designate the configurations that are common to the basic configuration of the lighting device A1 according to the embodiment, and illustrations and descriptions thereof will be omitted as appropriate. In the following description, "substantially common configuration" means a configuration that is slightly different in shape, size, etc., but has the same function.

[0045] (2-4-1) Variation 1 The lighting device A1 of the first modification is characterized by the operation of the timer 15. That is, the timer 15 of the first modification resets the count of the power-on time when the detection circuit 20 detects that the connection is incomplete for a certain period of time.

[0046] For example, consider a case in which the secondary battery 11 is removed from the lighting device A1 for replacement, and then a new secondary battery is installed (electrically connected to the charging circuit unit 121). In this case, it is desirable for the timing unit 15 to reset the time that current was applied to the old secondary battery 11, and to start counting the time that current was applied to the new secondary battery 11 from the beginning. The "certain time" that the timing unit 15 uses to determine whether to reset the time that current was applied may be the time required to replace the secondary battery 11, for example, from several minutes to more than ten minutes.

[0047] Therefore, in the lighting device A1 of variant 1, when the detection circuit section 20 detects that the connection is incomplete for a certain period of time, the timer section 15 resets the counting of the power supply time. Therefore, for example, when a new secondary battery 11 is electrically connected to the charging circuit section 121 after battery replacement, inspection can be avoided in a shorter time than necessary.

[0048] (2-4-2) Variation 2 The lighting device A1 of the second modification is also characterized by the operation of the timing unit 15. That is, the timing unit 15 of the second modification suspends timing of the energized time when the detection circuit unit 20 detects an incomplete connection state, and resumes timing of the energized time when the detection circuit unit 20 detects a completed connection state.

[0049] For example, consider a case in which the secondary battery 11 in the lighting device A1 is removed for a short period of time (for example, several seconds to several tens of seconds) rather than for replacement. In this case, since the secondary battery 11 has not been replaced, it is desirable that the timing unit 15 continue to measure the current flow time from the time before the interruption without resetting it when the secondary battery 11 is electrically connected again to the charging circuit unit 121. However, it is desirable that the timing unit 15 in the second modification reset the current flow time as in the first modification when the detection circuit unit 20 detects that the connection incomplete state continues for a certain period of time or more.

[0050] Therefore, the lighting device A1 of variant example 2 causes the timing unit 15 to suspend timing of the power-on time when the detection circuit unit 20 detects an incomplete connection state, and causes the timing unit 15 to resume timing of the power-on time when the detection circuit unit 20 detects a completed connection state, thereby preventing, for example, the inspection interval for an unreplaced secondary battery 11 from being unnecessarily extended.

[0051] (2-4-3) Variation 3 The lighting device A1 of the third modification is characterized by further including a battery 19 that supplies power to the timing unit 15. The battery 19 is, for example, a primary battery such as a button battery. However, the battery 19 may also be a secondary battery or an electric double layer capacitor.

[0052] For example, even if the supply of control power supply voltage from the control power supply circuit unit 18 is stopped, the timer unit 15 can continue counting the power-on time by supplying power from the battery 19.

[0053] Therefore, since the lighting device A1 of the third modification further includes the battery 19 that supplies power to the timer unit 15, the timer unit 15 can easily continue to measure the power-on time.

[0054] (3) Summary An emergency lighting device (A1) according to a first aspect of the present disclosure includes a light source (10), a secondary battery (11), a normal lighting circuit unit (120) that turns on the light source (10) using normal power supplied from a normal power source (9), and a charging circuit unit (121) that charges the secondary battery (11) using the normal power. The emergency lighting device (A1) according to the first aspect also includes an emergency lighting circuit unit (13) that turns on the light source (10) using emergency power supplied from the secondary battery (11), a control circuit unit (14) that controls the normal lighting circuit unit (120), the charging circuit unit (121), and the emergency lighting circuit unit (13), and a timer unit (15) that measures the power-on time of the secondary battery (11). The control circuit unit (14) is configured to selectively switch between a normal lighting mode, an emergency lighting mode, a normal-off mode, and an inspection mode. The control circuit unit (14) executing the normal lighting mode controls the normal lighting circuit unit (120) to turn on the light source (10). The control circuit unit (14) executing the emergency lighting mode controls the emergency lighting circuit unit (13) to turn on the light source (10). The control circuit unit (14) executing the normal light-off mode controls the normal lighting circuit unit (120) to turn off the light source (10). The control circuit unit (14) executing the inspection mode causes the charging circuit unit (121) to stop charging the secondary battery (11) and controls the emergency lighting circuit unit (13) to turn on the light source (10). When the energization time measured by the timer unit (15) reaches a predetermined time, the control circuit unit (14) executes the inspection mode if the normal lighting mode is being executed. When the power-on time counted by the timer (15) reaches a predetermined time, if the constant light-off mode is being executed, the control circuit unit (14) continues to execute the constant light-off mode without executing the inspection mode.

[0055] The emergency lighting device (A1) according to the first aspect can prevent problems that may occur when an inspection is performed automatically, for example, a problem that an inspection is automatically performed while the light is always off.

[0056] An emergency lighting device (A1) according to a second aspect of the present disclosure can be realized by combining it with the first aspect. In the emergency lighting device (A1) according to the second aspect, it is preferable that the timer unit (15) measures, as the power-on time, the elapsed time when the charging circuit unit (121) is electrically connected to the secondary battery (11) and when normal power is supplied from the normal power source (9).

[0057] The emergency lighting device (A1) according to the second aspect can appropriately determine the life of the secondary battery (11).

[0058] An emergency lighting device (A1) according to a third aspect of the present disclosure can be realized by combining it with the first or second aspect. Preferably, the emergency lighting device (A1) according to the third aspect further includes a detection circuit unit (20) that detects an electrical connection state between the charging circuit unit (121) and the secondary battery (11).

[0059] The emergency lighting device (A1) according to the third aspect can measure the power-on time of the secondary battery (11) more accurately.

[0060] An emergency lighting device (A1) according to a fourth aspect of the present disclosure can be realized by combining it with the third aspect. In the emergency lighting device (A1) according to the fourth aspect, it is preferable that the timer unit (15) resets the count of the power-on time when the detection circuit unit (20) detects that the charging circuit unit (121) and the secondary battery (11) are not electrically connected for a certain period of time.

[0061] The emergency lighting device (A1) according to the fourth aspect can avoid inspection being performed more quickly than necessary when, for example, a new secondary battery (11) is electrically connected to the charging circuit section (121) after battery replacement.

[0062] An emergency lighting device (A1) according to a fifth aspect of the present disclosure can be realized by combining it with the third aspect. In the emergency lighting device (A1) according to the fifth aspect, it is preferable that the timer unit (15) suspends counting of the energized time when the detection circuit unit (20) detects that the charging circuit unit (121) and the secondary battery (11) are not electrically connected. It is preferable that the timer unit (15) resumes counting of the energized time when the detection circuit unit (20) detects that the charging circuit unit (121) and the secondary battery (11) are electrically connected.

[0063] The emergency lighting device (A1) according to the fifth aspect can prevent, for example, the inspection interval of the secondary battery (11) that has not been replaced from being unnecessarily extended.

[0064] An emergency lighting device (A1) according to a sixth aspect of the present disclosure can be realized by combining it with any of the first to fifth aspects. In the emergency lighting device (A1) according to the sixth aspect, when an inspection start signal is received from the outside, it is preferable that the control circuit unit (14) executes the inspection mode regardless of whether the normal lighting mode or the constant light-off mode is being executed.

[0065] In the emergency lighting device (A1) according to the sixth aspect, when the control circuit unit (14) receives an inspection start signal from outside during the period from when the cinema closes until when the cinema opens, the control circuit unit (14) is made to execute an inspection mode, thereby enabling periodic inspection.

[0066] An emergency lighting device (A1) according to a seventh aspect of the present disclosure can be realized by combining it with any one of the first to sixth aspects. In the emergency lighting device (A1) according to the seventh aspect, it is preferable that the control circuit unit (14) executes the constant light-off mode in preference to the inspection mode.

[0067] The emergency lighting device (A1) according to the seventh aspect can prevent the occurrence of a problem in which inspection is automatically performed while the device is normally turned off.

[0068] An emergency lighting device (A1) according to an eighth aspect of the present disclosure can be realized by combining it with any one of the first to seventh aspects. In the emergency lighting device (A1) according to the eighth aspect, it is preferable that the timer unit (15) resets the counting of the energized time and starts counting the energized time anew after the control circuit unit (14) ends the inspection mode.

[0069] The emergency lighting device (A1) according to the eighth aspect can be automatically inspected at regular intervals (for example, every three months).

[0070] An emergency lighting device (A1) according to a ninth aspect of the present disclosure can be realized by combining it with any one of the first to eighth aspects. In the emergency lighting device (A1) according to the ninth aspect, it is preferable that the timer unit (15) resets the counting of the power-on time and starts counting the power-on time anew after the control circuit unit (14) ends the emergency lighting mode.

[0071] In the emergency lighting device (A1) according to the ninth aspect, the control circuit section (14) executes the emergency lighting mode, thereby discharging the secondary battery (11). Therefore, by resetting the counting of the power-on time by the timer section (15), it is possible to avoid inspection before the secondary battery (11) is fully charged.

[0072] An emergency lighting device (A1) according to a tenth aspect of the present disclosure can be realized by combining it with any one of the first to ninth aspects. In the emergency lighting device (A1) according to the tenth aspect, it is preferable that the timing unit (15) continues to count the power-on time even after the power-on time has reached a predetermined time.

[0073] The emergency lighting device (A1) according to the tenth aspect can be inspected periodically at predetermined intervals even when the power-on time reaches a predetermined time while the device is always turned off.

[0074] An emergency lighting device (A1) according to an eleventh aspect of the present disclosure can be realized by combining it with the tenth aspect. In the emergency lighting device (A1) according to the eleventh aspect, it is preferable that the timer unit (15) corrects the power-on time based on the elapsed time after reaching the predetermined time.

[0075] The emergency lighting device (A1) according to the eleventh aspect can be inspected periodically at predetermined intervals, except for the period when the device is always turned off, even if the power-on time reaches the predetermined time while the device is always turned off.

[0076] The emergency lighting device (A1) according to a twelfth aspect of the present disclosure can be realized by combining it with any of the first to eleventh aspects. The emergency lighting device (A1) according to the twelfth aspect preferably further includes a battery (19) that supplies power to the timer unit (15).

[0077] The emergency lighting device (A1) according to the twelfth aspect can easily continue the counting of the power-on time by the timer unit (15). [Explanation of symbols]

[0078] A1 Emergency lighting system 9 Regular power supply 10 light source 11 Secondary battery 13 Emergency lighting circuit section 14 Control circuit section 15 Timing section 19 Batteries 20 Detection circuit section 120 Regular lighting circuit section 121 Charging circuit section

Claims

1. A light source and A secondary battery, a normal lighting circuit section that lights the light source with normal power supplied from a normal power source; a charging circuit section that charges the secondary battery with the normal power; an emergency lighting circuit unit that lights up the light source using emergency power supplied from the secondary battery; a control circuit section for controlling the normal lighting circuit section, the charging circuit section, and the emergency lighting circuit section; a timer that measures the power-on time of the secondary battery; Equipped with the control circuit unit is configured to alternatively switch between a normal lighting mode in which the normal lighting circuit unit is controlled to turn on the light source, an emergency lighting mode in which the emergency lighting circuit unit is controlled to turn on the light source, a normal lighting-out mode in which the normal lighting circuit unit is controlled to turn off the light source, and an inspection mode in which the charging circuit unit stops charging the secondary battery and controls the emergency lighting circuit unit to turn on the light source, When the energization time measured by the timer reaches a predetermined time, the control circuit executes the inspection mode if the normal lighting mode is being executed, and continues to execute the constant light-off mode without executing the inspection mode if the constant light-off mode is being executed. Emergency lighting equipment.

2. the timer measures, as the energization time, the elapsed time during which the charging circuit is electrically connected to the secondary battery and the normal power is supplied from the normal power supply; 2. The emergency lighting device according to claim 1.

3. a detection circuit unit that detects an electrical connection state between the charging circuit unit and the secondary battery; 3. An emergency lighting device according to claim 1 or 2.

4. the timer resets the counting of the energization time when the detection circuit detects that the charging circuit and the secondary battery are not electrically connected for a certain period of time.

4. An emergency lighting device according to claim 3.

5. the timer suspends the counting of the energization time when the detection circuit detects that the charging circuit and the secondary battery are not electrically connected, and resumes the counting of the energization time when the detection circuit detects that the charging circuit and the secondary battery are electrically connected.

4. An emergency lighting device according to claim 3.

6. When the control circuit receives an inspection start signal from the outside, the control circuit executes the inspection mode regardless of whether the normal lighting mode or the always-off mode is being executed.

3. An emergency lighting device according to claim 1 or 2.

7. The control circuit executes the lights-out mode in priority to the inspection mode.

3. An emergency lighting device according to claim 1 or 2.

8. the timer resets the current-carrying time and starts a new current-carrying time measurement after the control circuit ends the inspection mode.

3. An emergency lighting device according to claim 1 or 2.

9. the timer unit resets the measurement of the energization time and starts measuring the energization time anew after the control circuit unit ends the emergency lighting mode.

3. An emergency lighting device according to claim 1 or 2.

10. the timing unit continues to measure the energization time even after the energization time reaches the predetermined time, 3. An emergency lighting device according to claim 1 or 2.

11. The timer corrects the energization time based on the elapsed time after reaching the predetermined time.

11. An emergency lighting device according to claim 10.

12. Further, a battery is provided to supply power to the timer unit.

3. An emergency lighting device according to claim 1 or 2.

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