JP6160268B2 - Lighting device and lighting device - Google Patents

Description

  The present invention relates to a lighting device and a lighting device.

  2. Description of the Related Art Conventionally, as disclosed in, for example, Japanese Patent Laid-Open No. 5-83873, a battery charging device provided with a charge display device for displaying a charging state of a battery is known. This charging display device is specifically a light emitting diode.

  In this prior art, during the execution of both trickle charging and rapid charging methods, the charge display device performs lighting to indicate that charging is in progress. Thereby, it can be notified that the battery is being charged. Note that trickle charging is charging with a small current continuously to compensate for spontaneous discharge of the battery.

  By the way, the above publication points out the problem that the current of the charging display device decreases due to the power supply voltage decreasing during rapid charging. In order to solve this problem, the conventional battery charging device includes a circuit for preventing the brightness of the monitor lamp of the charging display device from changing when switching from rapid charging to trickle charging.

  As a result, the brightness of the charging display device (specifically, a monitor lamp such as a light emitting diode) is sufficiently secured in both trickle charging and rapid charging so that the brightness of the charging display device does not change. With such a configuration, it is intended to reliably notify that charging is in progress.

JP-A-5-83873

  The battery charging device according to the above-described conventional technique is to prevent the brightness of the monitor lamp of the charging display device from changing. Therefore, in the battery charging device according to the above conventional technique, the brightness of the charging display device is kept constant regardless of the charging method.

  By the way, the battery charging method can be roughly divided into rapid charging and normal charging. Normal charging refers to charging other than rapid charging, one of which is “auxiliary charging” such as trickle charging.

  There is a case where it is desired to notify a user outside the charging apparatus whether the battery is charged by a quick charging method or a charging method other than that. This is because if the type of charging method currently applied can be known, for example, the outline of the charge amount of the battery can be known.

  In this regard, the gist of the technique according to the above publication is merely to ensure that the light emitting element of the charging display device emits light with a constant brightness during charging. Therefore, it is merely to keep in mind that the fact that the battery is being charged is surely notified.

  The present invention has been made in order to solve the above-described problems, and a lighting device capable of accurately notifying the type of battery charging method at the present time using a light emitting element when charging a battery. And it aims at providing an illuminating device.

The lighting device according to the present invention is
An LED module;
A lighting circuit connected to an AC power source and supplying a DC current to the LED module;
Apart from the lighting circuit, a battery for supplying a direct current to the LED module;
A charging circuit for charging the battery by either quick charging or auxiliary charging;
A light emitting element;
A control circuit for controlling the charging circuit and the light emitting element, and controlling a lighting state of the light emitting element according to whether the charging circuit is charging the battery;
With
The control circuit causes the light emitting element to light in the first lighting state when the charging circuit performs the quick charging, and causes the light emitting element to consume more power than the first lighting state when causing the charging circuit to perform the auxiliary charging. is lit with a small second lighting state of,
The lighting circuit is a regular lighting circuit that is connected to an AC power source and supplies a DC current to the LED module;
In addition to the regular lighting circuit, the LED module further includes an emergency lighting circuit for supplying a direct current,
The battery is connected to the emergency lighting circuit;
The control circuit performs brightness / darkness control that repeatedly increases and decreases the brightness of the light emitting element during the quick charge,
The first lighting state, characterized der Rukoto which gradually increase the relatively dark period in the dark controls relatively bright period while constant in the quick charge elapsed time the contrast control as a longer of And

The lighting device according to the present invention is
A charging circuit for rapidly charging or supplementarily charging a battery connected to an emergency lighting device for supplying direct current to the LED module separately from a normal lighting circuit for supplying direct current to the LED module;
A connection terminal connected to a light emitting element that is lit when the charging circuit is charging the battery;
A control circuit for controlling the charging circuit and the light emitting element, and controlling a lighting state of the light emitting element according to whether the charging circuit is charging the battery;
With
The control circuit allows a current to turn on the light emitting element in the first lighting state to flow to the connection terminal when the charging circuit is rapidly charged, and when the auxiliary charging is performed to the charging circuit, the control circuit places the light emitting element on the connection terminal. 1 also flow the current to be turned with a small second lighting state power consumption than lighting state,
The control circuit performs brightness / darkness control that repeatedly increases and decreases the brightness of the light emitting element during the quick charge,
In the first lighting state, a relatively dark period in the light / dark control is gradually lengthened while a relatively bright period in the light / dark control is made constant as an elapsed time of the quick charge becomes longer .

  According to the present invention, when the charging method is different, it is possible to perform control to actively change the state in which the light emitting element for charging display is turned on. Therefore, it is possible to accurately notify the type of charging method during battery charging.

It is a circuit diagram which shows the structure of the lighting device and illuminating device concerning Embodiment 1 of this invention. It is a flowchart of the routine which the control circuit of the lighting device concerning Embodiment 1 of this invention performs. It is a time chart which shows the relationship between the charging current when charging a battery according to Embodiment 1 of the present invention, and the brightness of the light emitting diode for charge monitoring at the charging current. It is a time chart which shows the relationship between the charging current when Embodiment 2 of this invention charges a battery, and the brightness of the light emitting diode for charge monitors in the charging current.

Embodiment 1 FIG.
[Configuration of Device of Embodiment 1]
FIG. 1 is a circuit diagram showing configurations of the lighting device 100 and the lighting device 1000 according to the first embodiment of the present invention. The lighting device 1000 includes a lighting device 100, an LED module 200 connected to the lighting device 100, an inspection monitor 300 that is also connected to the lighting device 100, and a battery 400 that supplies power to the emergency lighting circuit 140. .

  The lighting device 100 includes a rectifier circuit DB, a regular lighting circuit 110, a control power generation circuit 120, a charging circuit 130, an emergency lighting circuit 140, an OR circuit 150, a control circuit 160, and an inspection monitor 300. ing. The rectifier circuit DB converts alternating current from the commercial power source AC into direct current.

  The regular lighting circuit 110 is connected to the output of the rectifier circuit DB and supplies power to the LED module 200.

  Specifically, the regular lighting circuit 110 includes a so-called flyback converter including a transformer L1. Specifically, a resistor R1, a capacitor C1, and a diode D1 are provided on the primary winding side of the transformer L1, and one end of the transformer L1 is connected to the intelligent power device 11.

  On the secondary winding side of the transformer L1, a diode D4, a capacitor C2, a MOS field effect transistor Q1, resistors R2, R6, a digital transistor Q2, resistors R4, R5, a current detection circuit 12, a photocoupler PC, and a MOS field effect A transistor Q3 is provided. The current of the LED module 200 is detected by the current detection circuit 12 through the resistor R4, and is supplied to the intelligent power device 11 through the photocoupler PC.

  Note that the regular lighting circuit 110 in the present embodiment is not limited to a flyback converter, and may have other circuit configurations such as a buck converter and a push-pull circuit.

  The control power generation circuit 120 includes a diode D5 that rectifies to direct current and a capacitor C3. The control power supply generation circuit 120 operates using the output voltage of the secondary winding of the transformer L1 as a power supply, and outputs the control power supply Vcc.

  The charging circuit 130 is a circuit that charges the battery 400. The lighting device 100 includes battery charging terminals 104a and 104b. The battery charging terminal 104 a connects the charging circuit 130 and one end of the battery 400. The battery charging terminal 104b connects the other end of the battery 400 to the ground. The charging circuit 130 operates using the control power source Vcc as a power source to charge the battery 400.

  The emergency lighting circuit 140 is a lighting circuit that operates with electric power from the battery 400 as a substitute for the regular lighting circuit 110 under a predetermined environment such as a power failure. The emergency lighting circuit 140 supplies power to the LED module 200 via the OR circuit 150. In this embodiment, “under a predetermined environment” specifically means “when AC is not input to the rectifier circuit DB” or “when the battery 400 is in the inspection mode”. In these cases, the emergency lighting circuit 140 operates using the battery 400 as a power source to supply power to the LED module 200.

  The OR circuit 150 includes diodes D6 and D7, and inputs the logical sum of the output of the normal lighting circuit 110 and the output of the emergency lighting circuit 140 to the LED module 200.

  The control circuit (CPU) 160 is connected to the regular lighting circuit 110, the charging circuit 130, the emergency lighting circuit 140, and the inspection monitor 300, and controls them.

  The control circuit 160 includes a microcomputer that operates with the control power supply Vcc or the battery voltage Vbat. The control circuit 160 controls the emergency lighting circuit 140 and outputs and displays a status signal indicating the charging status of the battery 400 and the status of the LED module 200 (such as LED failure) on the inspection monitor 300.

  The control circuit 160 determines that AC power is supplied when the normal lighting circuit 110 is operating, stops the operation of the emergency lighting circuit 140, and operates the charging circuit 130 to charge the battery 400. . On the other hand, when the normal lighting circuit 110 is not operating, the control circuit 160 determines that AC power is not supplied, stops the operation of the charging circuit 130, stops charging the battery 400, and turns on the emergency lighting. The circuit 140 is operated.

  In addition, when the battery 400 is not fully charged, for example, when it is 80% or less of the energy when fully charged, the control circuit 160 controls the charging circuit 130 so as to rapidly charge the battery 400. On the other hand, when it exceeds 80% of the energy at the time of full charge, the control circuit 160 operates in the energy saving mode. In the energy saving mode, the charging circuit 130 is controlled so as to supplementarily charge the battery 400 by trickle charging or pulse charging.

  The inspection monitor 300 is connected to the control circuit 160 and can change the lighting state according to the state of charge of the battery 400 or the state of the LED module, thereby notifying those states.

  Specifically, the inspection monitor 300 includes resistors Ra, Rb, and Rc, a charge monitoring light emitting diode La, a lamp abnormality monitoring light emitting diode Lb, and an inspection abnormality monitoring light emitting diode Lc. As shown in FIG. 1, the resistors Ra, Rb, Rc, the charge monitoring light emitting diode La, the lamp abnormality monitoring light emitting diode Lb, and the inspection abnormality monitoring light emitting diode Lc are connected in series. Are provided in parallel.

  The lighting device 100 includes connection terminals 102a, 102b, and 102c connected to the cathodes of the charge monitoring light emitting diode La, the lamp abnormality monitoring light emitting diode Lb, and the inspection abnormality monitoring light emitting diode Lc. In addition, the lighting device 100 electrically connects the anodes of the charge monitoring light emitting diode La, the lamp abnormality monitoring light emitting diode Lb, and the inspection abnormality monitoring light emitting diode Lc to the control power supply Vcc through resistors Ra, Rb, and Rc, respectively. A power supply terminal 102d for connection is provided. The inspection monitor 300 is connected to the connection terminals 102a, 102b, 102c and the power supply terminal 102d.

  The inspection monitor 300 operates with the power of the control power supply Vcc, and its lighting state is controlled by the control circuit 160. Specifically, the control circuit 160 can control the charging monitor light emitting diode La to be in a lit state or an unlit state.

  Specifically, the lighting state of the light emitting diode La for charge monitoring includes 100% lighting (all light lighting) and dimming lighting (70% lighting, 50% lighting, etc.). In addition, “flashing” that repeatedly turns on and off as if it is visible is also included.

[Operation of Apparatus According to First Embodiment]
FIG. 2 is a flowchart of a routine executed by the control circuit 160 of the lighting device 100 according to the first embodiment of the present invention.

  In the routine of FIG. 2, first, the control circuit 160 detects whether or not the battery 400 is connected by detecting the battery voltage Vbat (step S1).

  When the connection of the battery 400 is detected in step S1, it is next determined whether the charge amount of the battery is a predetermined value or more (step S2).

  On the other hand, when connection of the battery 400 is not detected in step S1, the charge monitor light emitting diode La of the inspection monitor 300 is turned off (step S3). After step S3, the process returns to step S1.

  When it is determined in step 2 that the charge amount of the battery 400 is less than or equal to a predetermined value, the control circuit 160 switches the charging method of the charging circuit 130 so that the charging circuit 130 rapidly charges the battery 400 (step S4). .

  On the other hand, when it is determined that the amount of charge of battery 400 is not less than or equal to the predetermined value (that is, when it exceeds the predetermined value), control circuit 160 charges charging circuit 130 so that charging circuit 130 supplementally charges battery 400. The system is switched (step S5).

  As a result, the charging circuit 130 charges the battery 400 by either one of the quick charging method and the auxiliary charging method.

  When switching to the quick charge control in step S4, control for turning on the light emitting diode La for charge monitoring in the “first lighting state” is performed (step S7). Then, it returns to step 1.

  On the other hand, when the control for rapid charging is not performed (that is, when the control for supplementary charging is performed), control for lighting the light emitting diode La for charge monitoring in the “second lighting state” is performed (step S8). . The “first lighting state” and the “second lighting state” are lighting states that are different to the extent that the user can visually recognize them. Then, it returns to step 1.

  In the processes of steps S7 and S8, the control circuit 160 executes the lighting control of the charge monitor light emitting diode La according to the lighting pattern stored in the built-in memory. Details of the lighting pattern will be described later.

  As described above, the control circuit 160 changes the lighting state of the charge monitoring light emitting diode La according to the quick charge and the auxiliary charge. Thereby, it is possible to notify the user whether the battery 400 is being rapidly charged or supplementary charged. Moreover, since the charge amount of the battery 400 is determined by step S2, the outline of the charge amount of the battery 400 can also be alert | reported by a lighting state.

  Further, the control circuit 160 can change the lighting state of the charge monitor light emitting diode La to adjust the power consumption consumed by the charge monitor light emitting diode La. Therefore, energy saving of the light emitting diode La for charge monitoring can be achieved.

  In particular, a case where the AC power supply period is long and the period during which the battery 400 is supplementarily charged is long is common. Therefore, if the power consumption of the charge monitoring light emitting diode La can be suppressed during the auxiliary charging period, the cumulative energy saving effect is enhanced.

[Lighting variation]
Specific contents of the “first lighting state” and the “second lighting state” in the present embodiment described above will be described below. The control circuit 160 stores at least one of the lighting patterns described below in the built-in memory, and switches the lighting pattern in accordance with the processing of step S7 and step S8 in the routine of FIG.

  FIG. 3 is a time chart showing the relationship between the charging current when charging the battery and the brightness of the charge monitoring light emitting diode La at the charging current according to the first embodiment of the present invention.

  FIG. 3A shows the charging current in the quick charging period T1 and the charging current in the auxiliary charging. In FIG. 3A, the horizontal axis indicates time, and the vertical axis indicates the magnitude of the charging current. Symbol T1 indicates a quick charge period, and lighting is performed in the “first lighting state” during this period. Symbol T2 indicates a supplementary charging period, and lighting is performed in the “second lighting state” during this period. The value of the charging current in the quick charging period T1 is larger than the value of the charging current in the auxiliary charging period T2.

  FIGS. 3B to 3I show the first to eighth lighting patterns of the charge monitoring light emitting diode La, respectively. In each of FIGS. 3B to 3I, the horizontal axis indicates time and the vertical axis indicates brightness. Each of the first to eighth lighting patterns includes a portion that realizes the first lighting state to be used in the quick charging period T1, and a portion that realizes the second lighting state to be used in the auxiliary charging period T2. Yes.

  Specifically, FIG. 3B is a first lighting pattern, FIG. 3C is a second lighting pattern, FIG. 3D is a third lighting pattern, and FIG. FIG. 3 (f) shows the fifth lighting pattern, FIG. 3 (g) shows the sixth lighting pattern, FIG. 3 (h) shows the seventh lighting pattern, and FIG. ) Is the eighth lighting pattern.

(First lighting pattern)
The first lighting pattern shown in FIG. 3B is a pattern in which the first lighting state is all-light lighting and the second lighting state is dimming lighting. By doing so, power consumption is reduced in dimming lighting compared to all-light lighting. Therefore, when performing supplementary charging for a long time, an energy saving effect is obtained. According to the 1st lighting pattern, the state of quick charge can be visually recognized with the single inspection monitor 300, and reduction of power consumption can be aimed at in the energy-saving mode after quick charge.

(Second lighting pattern)
The second lighting pattern shown in FIG. 3C is a pattern in which the first lighting state is set to all light lighting, and the second lighting state is repeated for all light lighting and dimming lighting at regular intervals. By doing so, the power consumption is reduced in the dimming lighting as compared with the all-lighting, so that an energy saving effect can be obtained when the auxiliary charging is performed for a long time.

  Note that the second lighting state is not limited to repeating all light lighting and dimming lighting at regular intervals. For example, all-light lighting and dimming lighting may be repeated aperiodically, such as at an interval determined randomly by a random number generator or the like. In order to enhance the energy saving effect, it is desirable to lengthen the dimming lighting time. Therefore, it is preferable to set the ratio between the all-light lighting and the dimming lighting so that the dimming lighting time is lengthened.

  Alternatively, the all-lighting on and off may be repeated by turning off the light in place of the dimming lighting in the second lighting pattern.

  According to the 2nd lighting pattern, a lighting pattern can be made conspicuous by making it blink, and the deterioration of the visibility by light control can be compensated.

(Third lighting pattern)
In the third lighting pattern shown in FIG. 3D, the first lighting state is gradually dimmed from the all-light lighting in accordance with the quick charge period T1, and the dimming lighting is performed, and the second lighting state is dimmed lighting. It is a pattern to make. In dimming lighting, the dimming rate is maintained so that the brightness is almost constant. By doing in this way, the power consumption in the quick charge period T1 can be reduced.

  In addition, since the charging monitor light emitting diode La is gradually dimmed in the quick charging period T1, the user can know the time during which quick charging is performed or the approximate time until the quick charging ends (reference).

  Moreover, according to the 3rd lighting pattern, brightness can be changed so that progress of quick charge can be visually recognized.

(4th lighting pattern)
The fourth lighting pattern shown in FIG. 3E is a pattern in which the first lighting state is made to repeat all-light lighting and dimming lighting at regular intervals, and the second lighting state is dimmed lighting. By doing in this way, since power consumption is reduced in dimming lighting compared to all-light lighting, an energy saving effect can be obtained even in the quick charging period T1. In addition, since the display on the monitor changes depending on the brightness of the surroundings, the quick charge display can be blinked to improve visibility.

  Moreover, according to the 4th lighting pattern, since quick charge is displayed by blinking, the energy-saving effect is acquired also in the quick charge period T1, and visibility can be raised.

(5th lighting pattern)
A fifth lighting pattern shown in FIG. 3F is a modification of the fourth lighting pattern. The first lighting state of the fourth lighting pattern is a pattern in which one cycle is a combination of one dimming lighting time and one all-light lighting time, and this one cycle is repeated a plurality of times. On the other hand, the first lighting state of the fifth lighting pattern is a combination of two dimming lighting times and one all-light lighting time to form one cycle, and this one cycle is repeated a plurality of times.

  By combining the two dimming lighting times and the one all-light lighting time, the user can easily recognize whether the battery 400 is rapidly charged or supplementarily charged.

  Moreover, according to the lighting pattern 5, the image of quick charge can be represented by blinking with a short interval.

(6th lighting pattern)
The sixth lighting pattern shown in FIG. 3G is a modification of the third lighting pattern. The first lighting state of the third lighting pattern is gradually changed from dimming to dimming lighting. In contrast, in the sixth lighting pattern, the ratio between the all-light lighting time and the dimming lighting time is changed. In other words, as the quick charging time elapses, the total light lighting time is gradually shortened from a state in which the total light lighting time is relatively long, while the dimming lighting time is gradually adjusted from a state in which the dimming lighting time is relatively short. The lighting time is extended. By doing in this way, the effect similar to a 3rd lighting pattern is acquired.

  Further, according to the sixth lighting pattern, it is possible to make the progress of charging visible by shortening the blinking length.

(7th lighting pattern)
The 7th lighting pattern shown in Drawing 3 (h) is a modification of the 6th lighting pattern. In the first lighting state of the sixth lighting pattern, both the all-light lighting time and the dimming lighting time are changed. On the other hand, in the seventh lighting pattern, the dimming lighting time is gradually increased while keeping the total light lighting time substantially constant. By doing in this way, the effect similar to a 6th lighting pattern or a 3rd lighting pattern is acquired.

  As a modified example of the seventh lighting pattern, the total light lighting time may be gradually shortened while making the dimming lighting time substantially constant in the first lighting state. In this case, the same effect as described above can be obtained.

(8th lighting pattern)
The eighth lighting pattern shown in FIG. 3 (i) is a pattern in which a supply current is supplied in a short-cycle pulse waveform to cause high-speed blinking in the first lighting state and the second lighting state, respectively. Note that instead of high-speed flashing, high-speed light and dark that repeat all-light lighting and dimming lighting at high speed may be used. At this time, in the method of “high-speed flashing” or “high-speed light / dark”, what changes between the first lighting state and the second lighting state is the pulse duty when flashing or lighting.

  In particular, in the eighth lighting pattern of the present embodiment shown in FIG. 3 (i), the pulse duty in the first lighting state is made larger than the pulse duty in the second lighting state. By changing the pulse duty in this way, the brightness appears to the user, and the power consumption can be reduced by turning off or dimming the charging monitor light emitting diode La. Note that the larger the pulse duty, the brighter the user looks.

  According to the eighth lighting pattern, a circuit required for dimming can be simplified by blinking at high speed.

  In the first lighting pattern and the third to eighth lighting patterns, the second lighting state is dimming lighting. However, the present invention is not limited to this. The second lighting state of the first lighting pattern and the third to eighth lighting patterns is not dimming lighting, but is the repetition of all-light lighting and dimming lighting, such as the second lighting state of the second lighting pattern, or all-light lighting. It is also possible to repeat turning off and off. When this modification is applied to the 4th to 7th lighting patterns, both the 1st and 2nd lighting states become lighting patterns that are switched between light and dark. What is necessary is just to make it a change cycle etc. differ.

  As described above, according to the present embodiment, it is possible to actively change the lighting state of the inspection monitor 300 between the quick charge mode and the energy saving mode (auxiliary charge). Therefore, the battery quick charge mode and the energy saving mode can be accurately notified by the single inspection monitor 300.

  Moreover, the lighting state of the inspection monitor 300 in the energy saving mode can be dimming or blinking. As a result, the amount of current flowing through the charging monitor light emission La of the inspection monitor 300 can be suppressed, and power consumption can be suppressed.

Embodiment 2. FIG.
The lighting device 100 and the lighting device 1000 according to the second embodiment have the same configuration as the device according to the first embodiment, and are different in the operation of the control circuit and the quick charging method. Therefore, illustrations and descriptions of the same configurations as those in the first embodiment are omitted, and different parts from the first embodiment will be described.

  FIG. 4 is a time chart showing the relationship between the charging current when charging the battery and the brightness of the charge monitoring light emitting diode La at the charging current according to the second embodiment of the present invention.

  FIG. 4A shows the charging current in the rapid charging period T1 and the charging current in the auxiliary charging period T2, as in FIG. 4B shows the ninth lighting pattern, FIG. 4C shows the tenth lighting pattern, and FIG. 4D shows the eleventh lighting pattern.

  The control circuit 160 executes the same processing as the flowchart shown in FIG. However, the second embodiment is different from the first embodiment in that the charging current for rapid charging is changed as shown in FIG.

  In the second embodiment, when rapid charging is performed, charging is started with a charging current as a maximum value. Thereafter, the control circuit 160 controls the charging circuit 130 so that the charging current gradually decreases in accordance with the quick charging period T1. The reduction of the charging current with the passage of time is performed so that the charging current at the end of the rapid charging, that is, at the time of switching to the auxiliary charging is substantially equal to the magnitude of the charging current in the auxiliary charging period T2.

  In addition, the control circuit 160 changes the brightness of the charge monitor light emitting diode La of the inspection monitor 300 in accordance with the change of the charging current in the quick charging period T1. This is the same as the third lighting pattern in the first embodiment. Further, according to the ninth lighting pattern, the brightness is gradually decreased in proportion to the decrease in the charging current.

  By doing in this way, the effect similar to the time of the 3rd lighting pattern of Embodiment 1 can be acquired. In the ninth lighting pattern, the brightness is associated with the state of charge of the battery 400, so that the user can be notified of the state of charge of the battery 400 based on the brightness information.

  In the second embodiment, the modifications shown in FIGS. 4C and 4D are possible.

  FIG. 4C shows a tenth lighting pattern, which is basically the same pattern as the sixth lighting pattern in the first embodiment. In the first lighting state of the sixth lighting pattern, the ratio between the total light lighting time and the dimming lighting time is changed, and the total light lighting time is gradually shortened from the state where the total light lighting time is relatively long. On the other hand, the dimming lighting time is gradually increased from the state where the dimming lighting time is relatively short. Therefore, in the 10th lighting pattern, when the total light lighting time is gradually shortened or the dimming lighting time is gradually lengthened, the amount of change that increases or decreases each time is proportional to the amount of decrease in charging current. Also good.

  FIG. 4D shows an eleventh lighting pattern, which is basically the same pattern as the seventh lighting pattern in the first embodiment. The seventh lighting pattern is to gradually increase the dimming lighting time while making the total light lighting time substantially constant, and the modified example is to gradually shorten the total light lighting time while making the dimming lighting time substantially constant. It is. Therefore, in the eleventh lighting pattern, when the total light lighting time is gradually shortened or the dimming lighting time is gradually lengthened, the amount of change that increases or decreases each time is proportional to the amount of decrease in charging current. Also good.

In JP-A-5-83873, the phenomenon that the brightness of the monitor lamp of the charging display device (light emitting diode) unintentionally changes according to the charging current for charging the battery is pointed out as a problem. ing. To explain this point, the charging current of the battery changes according to the amount of charge and the degree of deterioration of the battery. That is, even if the charging method is the same, the battery charging current differs depending on the situation, so the brightness of the monitor lamp of the charging display device may be different even if the charging method is the same. However, the difference in brightness caused by such a cause is unstable that does not correspond to the type of charging method. If such unstable brightness is used as a clue to know the charging method, the type of charging method cannot be accurately known.
In this regard, according to the present embodiment, there is an extraordinary effect that the type of charging method during battery charging can be accurately notified.

AC commercial power supply, DB rectifier circuit, L1 transformer, La charge monitoring light emitting diode, Lb lamp abnormality monitoring light emitting diode, Lc inspection abnormality monitoring light emitting diode, PC photocoupler, 11 intelligent power device, 12 current detection circuit, 100 lighting 110, lighting circuit, 120 control power generation circuit, 130 charging circuit, 140 emergency lighting circuit, 150 OR circuit, 160 control circuit, 200 LED module, 300 inspection monitor, 400 battery, 1000 lighting device

Claims (4)

An LED module;
A lighting circuit connected to an AC power source and supplying a DC current to the LED module;
Apart from the lighting circuit, a battery for supplying a direct current to the LED module;
A charging circuit for charging the battery by either quick charging or auxiliary charging;
A light emitting element;
A control circuit for controlling the charging circuit and the light emitting element, and controlling a lighting state of the light emitting element according to whether the charging circuit is charging the battery;
With
The control circuit causes the light emitting element to light in the first lighting state when the charging circuit performs the quick charging, and causes the light emitting element to consume more power than the first lighting state when causing the charging circuit to perform the auxiliary charging. Lit in the second lighting state with less
The lighting circuit is a regular lighting circuit that is connected to an AC power source and supplies a DC current to the LED module;
In addition to the regular lighting circuit, the LED module further includes an emergency lighting circuit for supplying a direct current,
The battery is connected to the emergency lighting circuit;
The control circuit performs brightness / darkness control that repeatedly increases and decreases the brightness of the light emitting element during the quick charge,
The first lighting state is characterized in that a relatively dark period in the light / dark control is gradually lengthened while a relatively bright period in the light / dark control is made constant as an elapsed time of the quick charge becomes longer. It is that lighting devices. The lighting device according to claim 1 , wherein a charging current of the charging circuit is reduced according to an elapsed time of the quick charging. The lighting device according to claim 2 , wherein an expansion amount of the dark period in the first lighting state is proportional to a decrease amount of the charging current. A charging circuit for rapidly charging or supplementarily charging a battery connected to an emergency lighting device for supplying direct current to the LED module separately from a normal lighting circuit for supplying direct current to the LED module;
A connection terminal connected to a light emitting element that is lit when the charging circuit is charging the battery;
A control circuit for controlling the charging circuit and the light emitting element, and controlling a lighting state of the light emitting element according to whether the charging circuit is charging the battery;
With
The control circuit allows a current to turn on the light emitting element in the first lighting state to flow to the connection terminal when the charging circuit is rapidly charged, and when the auxiliary charging is performed to the charging circuit, the control circuit places the light emitting element on the connection terminal. 1 also flow the current to be turned with a small second lighting state power consumption than lighting state,
The control circuit performs brightness / darkness control that repeatedly increases and decreases the brightness of the light emitting element during the quick charge,
The first lighting state is characterized in that a relatively dark period in the light / dark control is gradually lengthened while a relatively bright period in the light / dark control is made constant as an elapsed time of the quick charge becomes longer. A lighting device to do.

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