JP2003243190A - Lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify a structure and facilitate a design of a lighting device provided with a lighting mode change-over switch. <P>SOLUTION: With the lighting device provided with a discharge lamp, discharge lamp lighting unit, a control means 12, and a lighting mode change-over means 11, the discharge lamp lighting unit is so structured that the control means is reset according to operations of the lighting mode change-over means. The lighting device can be so structured; (1) that the control means is reset instantaneously and the lighting mode is returned at once to the second mode when the lighting mode is changed over from a first mode to a second by the lighting mode change-over means; (2) that power supply to the control means is stopped and the control means is reset when the lighting mode is changed over from the first mode to the second by the lighting mode change-over means. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a lighting device.

[0002]

2. Description of the Related Art In an auxiliary lighting device such as a sink lamp of a kitchen, generally, a power source opening / closing device for a main power source such as a wall switch is not separately provided at the time of construction of the lighting device. However, in the lighting circuit of the lighting device, a control element (IC or the like) that must be reset at the time of a runaway is used in a control circuit such as an inverter, and the main power supply is opened or closed when the control element runs out of control. Therefore, the lighting device is provided with a switch for opening and closing the main power supply, and the lighting device is provided with a reset switch for the control element in order to reset the control element.

FIG. 11 is a schematic configuration diagram of an auxiliary lighting device having a sensor control block including a lighting control SW (switch) 21 for switching lighting modes (for example, three modes of extinguishing, sensor lighting, and forced lighting). Indicates. In the auxiliary lighting device and the auxiliary lighting device having a dimming lighting function as shown in the schematic configuration diagram in FIG. 11, the main power source opening / closing switch and the reset switch for the control element are provided separately from the lighting mode changeover switch. Was set up. FIG. 12 shows an example of a circuit diagram of such an auxiliary lighting device. In this example, the lighting mode selector switch 21 (lighting mode setting port)
And a reset switch (reset port) of the control element (IC) 22 are provided separately and independently.

[0004]

In the conventional lighting device having the lighting mode changeover switch, the switch for resetting the control element of the lighting circuit is provided separately from the lighting mode changeover switch, and therefore the lighting device is provided. However, the circuit configuration of might become complicated and the design might be difficult.

The present invention has been made in view of the above problems, and it is an object of the present invention to simplify the structure and facilitate the design of a lighting device having a lighting mode changeover switch.

[0006]

The respective inventions of the present invention have been made in view of the above problems, and include a discharge lamp, a discharge lamp lighting device for lighting the discharge lamp, and a control means for controlling the discharge lamp lighting device. The lighting device of the invention according to claim 1 further comprising: a lighting mode switching unit that switches a lighting mode of the discharge lamp, wherein the discharge lamp lighting device is configured such that the control unit is reset in accordance with the operation of the lighting mode switching unit. It is characterized by being configured. In the present case, the discharge lamp includes not only fluorescent lamps but also electric lamps that utilize the discharge phenomenon such as incandescent lamps.

A lighting device according to a second aspect of the present invention is the lighting device according to the first aspect of the present invention, further comprising reset release means that operates in accordance with the operation of the lighting mode switching means, and is turned on by the lighting mode switching means. When the mode is switched from the first mode to the second mode, the control means is instantly reset and the lighting mode is immediately returned to the second mode.

An illumination device according to a third aspect of the present invention is the illumination device according to the first aspect of the invention, further comprising power stopping means for stopping the supply of electric power to the control means, and the lighting mode switching means for turning on the lighting mode. Is switched from the first mode to the second mode, the supply of electric power to the control means is stopped and the control means is reset.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 shows a circuit diagram of an example of a lighting device of the present invention. This lighting device includes a discharge lamp, a discharge lamp lighting device for lighting the discharge lamp (neither is shown), and a control unit (control element 1) for controlling the lighting state of the discharge lamp lighting device.
2) and a lighting mode switching means (switch 11) for switching the lighting mode of the discharge lamp, and the discharge lamp lighting device is configured such that the control element 12 is reset in association with the operation of the lighting mode switching switch 11. ing.

In this lighting device, the lighting mode changeover switch 11 (SW1) is connected to two ports of the control element (IC) 12 (lighting mode setting port 1 and lighting mode setting port 2). This port is processed inside the IC to perform AND control of high level (H) and low level (L), and the lighting mode is set by the combination thereof, and the H lighting control signal (H
Signal) or an L lighting control signal (L signal).

In the lighting device of the present invention, unlike the conventional lighting device whose circuit diagram is shown in FIG. 12, the reset port of the control element and the circuit of the lighting mode changeover switch are connected. Then, when the lighting mode changeover switch is switched to a certain lighting mode (mode C), the lighting circuit is configured so that the same L signal as when the control element is reset is output as the lighting control signal. The control element can be reset without affecting the operation of.

With this structure, it is not necessary to provide a reset switch for preventing runaway of the control element in addition to the lighting mode changeover switch, and the structure of the lighting device can be simplified and the design can be facilitated. You can (Embodiment 2) FIG. 2 shows a circuit diagram of another example of the illumination device of the present invention. This lighting device includes a discharge lamp, a discharge lamp lighting device for lighting the discharge lamp (neither is shown), and a control unit (control element 12) for controlling the discharge lamp lighting device,
A lighting mode switching unit (switch 11) for switching the lighting mode of the discharge lamp is provided. Further, the resetting means that operates in accordance with the operation of the lighting mode switching means is provided, and when the lighting mode is switched from the first mode to the second mode by the lighting mode switching means, the control means While being instantly reset,
The lighting mode is configured to immediately return to the second mode.

That is, as shown in FIG. 2, in this lighting device, as in the lighting device of the first embodiment, the lighting mode changeover switch (SW1) has two ports of the control element (IC) (lighting mode setting port 1). And the lighting mode setting port 2). Then, the lighting mode changeover switch is switched from the mode B to the mode C, and the reset port of the control element (IC), which was at the H level, is instantly set to the L level and the lighting device of the lighting device is returned to the H level again. The circuit is configured.

In the lighting device having the circuit shown in FIG. 2, when the lighting mode changeover switch is not connected to the reset port wiring (mode B), the collector current of the transistor Tr1 does not flow and the base current of the transistor Tr2 is not supplied. Does not flow, the reset port remains at H level. The lighting mode setting ports are at the L level for both port 1 and port 2. However, when the switch is connected to the mode C, the base current of the transistor Tr1 flows and the collector current of the transistor Tr1, that is, the base current of the transistor Tr2 flows until the capacitor C1 is charged. At this time, the reset port goes low as the collector current of the transistor Tr2 conducts.
Become a level. When the capacitor C1 is charged, the base current of the transistor Tr1 stops flowing and the transistor Tr1 is turned off. Therefore, the transistor Tr2 is also turned off and the reset port becomes H level. At this time, the lighting mode setting port is similarly set to the H level.

With this configuration, as shown in an example of a chart in FIG. 3, the control element can be instantly reset in accordance with the switching operation of the lighting mode changeover switch, and the lighting mode is controlled by the control element. Even if the above operation is required, the reset can be performed. (Embodiment 3) FIG. 4 shows a schematic configuration diagram of another example of the illumination device of the present invention. This lighting device basically uses the configuration of the second embodiment and combines the reset operation of the control element with the control elements of the plurality of control circuits. In this example, the sensor control circuit 13 and the lighting control circuit 14 form a control circuit. Table 1 shows an example of a combination of lighting mode changeover switches in such an illumination device. Here, it is possible to switch between three lighting modes of turning off, sensor lighting, and forced lighting.

[0016]

[Table 1]

FIG. 5 shows an example of a circuit diagram of the illumination device of the third embodiment.

In this lighting device, when the lighting mode is the non-lighting mode, the sensor control element (IC) 12a.
And the lighting circuit control element (IC) 12b do not operate, and when the lighting mode changeover switch 11 is switched, the sensor IC (12a) and the lighting circuit IC (12)
The circuit is configured so that the reset port of b) is at the L level which is the reset state. Further, when the lighting mode changeover switch is switched, the lighting signal output from the lighting circuit is set to be an extinction signal.

On the other hand, in this lighting device, when the lighting mode is the sensor mode, both the sensor IC and the lighting circuit IC must be in the operating state, and the lighting mode changeover switch is switched from the mode B to the mode A. The circuits are configured so that the reset ports of the sensor IC and the lighting circuit IC go to the H level, which is the reset release state, when the sensor IC is turned on.

When the lighting mode is the forced lighting mode, the lamp is lit regardless of the output signal of the sensor IC, so the sensor IC reset port may be at the L level which is the reset state. On the other hand, the lighting circuit IC needs to be operated. Therefore, the circuit is configured such that the lighting signal output when the sensor IC reset port is at the L level is the same as the signal when the lamp is lighting.

With such a configuration, in each lighting mode, it is possible to set the control elements that do not need to operate in the reset state and prevent the control elements that need to operate from resetting, and stabilize the circuit operation. There is an effect that it can be made. (Embodiment 4) FIG. 6 shows a circuit diagram of another example of the illumination device of the present invention. This lighting device includes a discharge lamp, a discharge lamp lighting device for lighting the discharge lamp (neither is shown), and a control means (control element 12a, 1) for controlling the discharge lamp lighting device.
2b) and lighting mode switching means (switch 11) for switching the lighting mode of the discharge lamp. The lighting mode switching means includes a power stopping means for stopping the supply of power to the control means when the lighting mode is switched from the first mode to the second mode. That is, in this embodiment, the lighting mode changeover switch (SW1) 11 is connected to the control power supply circuit of the control element. By connecting the circuits in this way, the control element can be reset by turning the power supply of the control element on and off.

In this lighting device, the power supply voltage of the lighting circuit IC (control element) 12b is circuit-connected to the lighting mode setting port 2. And IC (control element) 1
The lighting mode of 2a is determined by a combination of the H level and the L level of the lighting mode setting port 1 and the lighting mode setting port 2. For example, assuming that the lighting mode changeover switch (SW1) 11 is connected to the lighting mode setting port 2 (mode C), first, the lighting mode setting port 2 divides the voltage supplied from the control power supply circuit. Becomes H level. At this time, the base current flows through the transistor Tr1 and the transistor Tr1 is turned on.
The N state is set. As a result, the base current of the transistor Tr2 forming the constant voltage circuit stops flowing,
The transistor Tr2 is turned off, and the lighting circuit I
The power supply voltage of C (control element) 12b also becomes L level.

With such a structure, the power supply of the control element is turned on at the same time as the switching operation of the lighting mode changeover switch.
By using FF, the reset operation can be set in any lighting mode, and the power consumption of the control power supply can be cut off. (Embodiment 5) FIG. 7 shows a schematic configuration diagram of another example of the illumination device of the present invention. This lighting device basically uses the configuration of the fourth embodiment, and the reset operation of the control element is combined with the control power supply circuit of the plurality of control circuits.
In this example, the sensor control circuit 13 and the lighting control circuit 1
A control circuit is constituted by 4 and. Table 2 shows an example of a combination of lighting mode changeover switches in such an illumination device.
Shown in. Here, it is possible to switch between three lighting modes of turning off, sensor lighting, and forced lighting.

[0024]

[Table 2]

FIG. 8 shows an example of a circuit diagram of the illumination device of the fifth embodiment.

In this lighting device, when the lighting mode is the non-lighting mode, the sensor control element (IC) 12a.
And the lighting circuit control element (IC) 12b do not operate, and when the lighting mode changeover switch (SW1) 11 is switched, both the power supply of the sensor IC and the power supply of the lighting circuit IC are turned off. The circuit is configured in. Further, when the lighting mode changeover switch is switched, the lighting signal output from the lighting circuit is set to be an extinction signal.

On the other hand, in this lighting device, when the lighting mode is the sensor mode, the sensor IC (12a)
Both the lighting circuit IC (12b) and the lighting circuit IC (12b) must be in the operating state, and when the lighting mode changeover switch 11 is switched, both the power supply of the sensor IC and the power supply of the lighting circuit IC are turned on. The circuit is configured.

When the lighting mode is the forced lighting mode, the lamp is turned on regardless of the output signal of the sensor IC, so that the sensor IC (12a) may be powered off. On the other hand, since the lighting circuit IC (12b) needs to be operated, the power supply of the lighting circuit IC (12b) must be in the ON state. Therefore, I for sensor
The circuit is configured so that the lighting signal output when the power source of C (12a) is in the OFF state is the same as the signal when the lamp is lighting.

With such a configuration, in each lighting mode, the power supply of the control element that does not need to operate is turned off.
In the F state, the control element that needs to be operated can be turned on, and the unstable elements such as the runaway of the control element can be reduced, and the power consumption of the control power supply can be reduced. . (Embodiment 6) FIG. 9 shows a schematic configuration diagram of another example of the illumination device of the present invention. The lighting device of this embodiment includes a plurality of sensor units and a lighting fixture body controlled by the sensor units, and the sensor unit is placed separately from the lighting fixture. Lighting mode switch (lighting control S
W) 11 is provided on a lighting control block incorporated in the main body of the lighting fixture.

With this structure, when a plurality of sensor units are provided to control one lighting fixture main body, one lighting mode changeover switch can reset all the control elements. The effect of being able to do is exhibited. (Embodiment 7) FIG. 10 shows a schematic configuration diagram of another example of the illumination device of the present invention. The lighting device of this embodiment includes a sensor unit and a plurality of lighting fixture bodies controlled by the sensor unit, and the sensor unit is placed separately from the lighting fixture. Lighting mode switch (lighting control S
W) 11 is provided on the sensor control block of the sensor section.

With this configuration, when controlling a plurality of luminaire main bodies with one sensor unit,
The effect that the reset operation can be performed for all the control elements with one lighting mode changeover switch is achieved.

[0032]

According to the inventions according to each claim of the present invention, the control means such as an IC is used for controlling the lighting state, and the structure of the lighting device having the lighting mode switching means (switch) is simplified, The design can be facilitated.

[Brief description of drawings]

FIG. 1 is a circuit diagram of a first embodiment of a lighting device of the present invention.

FIG. 2 is a circuit diagram of a second embodiment of a lighting device of the present invention.

FIG. 3 is an example of a chart diagram in the illumination device of the second embodiment.

FIG. 4 is a schematic configuration diagram of a third embodiment of the lighting device of the present invention.

FIG. 5 is an example of a circuit diagram of a lighting device of a third embodiment.

FIG. 6 is a circuit diagram of Embodiment 4 of the lighting device of the present invention.

FIG. 7 is a schematic configuration diagram of a fifth embodiment of a lighting device of the present invention.

FIG. 8 is an example of a circuit diagram of a lighting device of a fifth embodiment.

FIG. 9 is a schematic configuration diagram of a sixth embodiment of a lighting device of the present invention.

FIG. 10 is a schematic configuration diagram of a seventh embodiment of a lighting device of the present invention.

FIG. 11 is a schematic configuration diagram of a conventional auxiliary lighting device.

FIG. 12 is an example of a circuit diagram of a conventional auxiliary lighting device.

[Explanation of symbols]

11: Lighting mode switching means (switch) 12, 12a, 12b: control means (element) 13: Control circuit for sensor 14: Control circuit for lighting

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3K072 AA01 AC02 AC11 BA03 CA16                       CB07 CB08 EA07 EB02 EB10                       GB01                 3K073 AA26 AA28 AA47 AA49 AA50                       AA84 BA25 BA28 CA01 CC01                       CG16 CG18 CG59 CJ03

Claims (3)

[Claims] 1. A lighting device comprising a discharge lamp, a discharge lamp lighting device for lighting the discharge lamp, control means for controlling the discharge lamp lighting device, and lighting mode switching means for switching the lighting mode of the discharge lamp. A lighting device, wherein a discharge lamp lighting device is configured so that the control means is reset in accordance with the operation of the lighting mode switching means. 2. A reset releasing means that operates in accordance with the operation of the lighting mode switching means, and when the lighting mode is switched from the first mode to the second mode by the lighting mode switching means, the control means. The lighting device according to claim 1, wherein the lighting mode is instantly reset and the lighting mode is immediately returned to the second mode. 3. The control means is provided with a power stopping means for stopping the supply of power to the control means, and when the lighting mode is switched from the first mode to the second mode by the lighting mode switching means. The lighting device according to claim 1, wherein the control means is reset by stopping the supply of electric power to the power source.