JP2011014470A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire saving energy by avoiding an unnecessary power consumption.SOLUTION: The luminaire 1 includes a rectifying circuit 11 converting an alternating current supplied from alternating current power supply AC into a direct current, a booster circuit 13 boosting an output from the rectifying circuit 11, an inverter circuit 16 converting the direct current output from the booster circuit 13 into a high frequency alternating current and supplying it to a lamp Lp, a rated electric power selection circuit 23 generating a rated electric power selection signal Sg23 indicating of which one of a first rated electric power and a second rated electric power is selected to be supplied to the lamp Lp, and a rated electric power specification circuit 25 specifying one of the first rated electric power and the second rated electric power based on the rated electric power selection signal Sg23. The rated electric power specification circuit 25 controls the boosting circuit 13 and inverter circuit 16 according to the determined one of the first rated electric power and the second rated electric power.

Description

  The present invention relates to a luminaire that applies an inverter circuit to supply power to a lamp.

  Lighting fixtures are indispensable products for human life and are used in a wide variety of situations. In addition, many lighting fixtures having a dimming function in order to ensure the light intensity according to the usage situation have been adopted.

  FIG. 5 is a circuit block diagram showing a schematic configuration of a conventional lighting fixture.

  The luminaire according to the conventional example includes a rectifier circuit 111 that converts alternating current supplied from an alternating current power supply AC into direct current, a booster circuit 113 that boosts the output of the rectifier circuit 111, and direct current output from the booster circuit 113 as high-frequency alternating current. And an inverter circuit 116 that converts the signal into the lamp Lp and supplies it to the lamp Lp. The rectifier circuit 111 is composed of, for example, a full-wave rectifier circuit, and the booster circuit 113 is composed of, for example, a chopper booster circuit. Further, the inverter circuit 116 is configured to change the frequency of the high-frequency alternating current output by the frequency adjustment circuit 117, and is configured to adjust the light by changing the frequency and changing the power supplied to the lamp Lp. .

  The lighting fixture according to the conventional example receives a light control light signal 120 from a remote control terminal (not shown), and power supplied to the lamp Lp based on the light signal received by the remote control light reception circuit 120. A light control circuit 122 for adjusting the light intensity is provided. Therefore, the luminaire is configured to supply the dimming power (for example, 100% output to 0% output) adjusted in the ratio to the rated power to the lamp Lp, and light intensity adjustment (dimming) by remote control can be easily performed. It is set as the structure which can be performed.

  However, in conventional lighting fixtures, the rated power is a single design, so it is only possible to change the light intensity by adjusting the light intensity by dimming control, and the dimming operation is complicated. It has been pointed out that it is difficult to set an appropriate dimming intensity according to the usage environment, and that unnecessary power is consumed depending on the installation location. That is, the operation in the energy saving mode is required in addition to the dimming control.

  For example, Patent Literature 1 to Patent Literature 4 are disclosed as prior literatures that disclose lighting fixtures having a dimming function.

Japanese Patent Laid-Open No. 2-66879 Japanese Patent Laid-Open No. 10-64684 JP 2002-373794 A Japanese Utility Model Publication No. 62-94598

  As described above, the conventional lighting apparatus has a problem that the rated power itself cannot be adjusted even though the light can be adjusted. Moreover, since the rated power cannot be adjusted, there is a problem that the range of dimming is limited and the energy saving mode cannot be sufficiently functioned.

  The present invention has been made in view of such a situation. By providing a rated power selection circuit for switching the rated power, the light intensity corresponding to the use environment can be secured by switching the rated power, and wasteful power consumption is achieved. It aims at providing the lighting fixture which can implement | achieve energy saving by avoiding.

  A luminaire according to the present invention includes a rectifier circuit that converts alternating current into direct current, a booster circuit that boosts the output of the rectifier circuit, and an inverter that converts the direct current output from the booster circuit into high-frequency alternating current and supplies it to the lamp A rated power selection circuit that generates a rated power selection signal indicating whether a first rated power or a second rated power to be supplied to the lamp is selected, and the rated power A rated power specifying circuit that specifies either the first rated power or the second rated power based on a selection signal, wherein the rated power specifying circuit includes the specified first rated power or the second rated power. The booster circuit and the inverter circuit are controlled so as to correspond to any of the above.

  Therefore, the lighting fixture according to the present invention allows either the first rated power or the second rated power to be selected by the rated power selection circuit, and corresponds to either the selected first rated power or second rated power. The rated power specifying circuit controls the booster circuit and the inverter circuit. That is, the luminaire according to the present invention can easily switch the light intensity in the all-light state (all-light state) corresponding to the first rated power or the second rated power, and the light intensity corresponding to the use environment. Can be easily selected. Since the luminaire according to the present invention can select the light intensity according to the environment, it is possible to avoid unnecessary power consumption and achieve energy saving.

  Moreover, since the lighting fixture which concerns on this invention switches the rated power to supply and switches all lamp states, since at least 2 types of light intensity can be set with a single lighting fixture, it is the specification as a lighting fixture. The contents can be expanded to widen the demand range (applicable range) and to have versatility, and thus the manufacturing cost can be suppressed.

  Moreover, in the lighting fixture which concerns on this invention, the said rated power selection circuit is provided with the selection switch which receives selection of either the said 1st rated power or the said 2nd rated power.

  Therefore, the luminaire according to the present invention easily generates the rated power selection signal to cause the rated power specifying circuit to function correctly, and easily and accurately switches the first rated power or the second rated power. can do.

  In addition, the lighting fixture according to the present invention includes a remote control light receiving circuit that receives a light signal for dimming from a remote control terminal, and a light receiver housing that houses the remote control light receiving circuit, A light receiving window for inputting an optical signal to the remote control light receiving circuit is provided, and the light receiving window is configured to rotate so as to displace the optical axis.

  Therefore, the luminaire according to the present invention can be dimmed by remote control and displaces the optical axis formed by the light receiving window through which an optical signal is incident on the remote control light receiving circuit, thereby easily and highly accurately receiving light. Can be adjusted.

  A luminaire according to the present invention includes a rectifier circuit that converts alternating current to direct current, a booster circuit that boosts the output of the rectifier circuit, an inverter circuit that converts the direct current output from the booster circuit to high-frequency alternating current, and supplies the high-frequency alternating current to the lamp. A rated power selection circuit for generating a rated power selection signal indicating whether the first rated power or the second rated power supplied to the lamp is selected, and a rated power selection signal And a rated power specifying circuit that specifies either the first rated power or the second rated power, and the rated power specifying circuit corresponds to either the specified first rated power or the second rated power. And it is set as the structure which controls an inverter circuit.

  Therefore, the lighting fixture according to the present invention allows either the first rated power or the second rated power to be selected by the rated power selection circuit, and corresponds to either the selected first rated power or second rated power. The rated power specifying circuit controls the booster circuit and the inverter circuit. That is, the luminaire according to the present invention can easily switch the light intensity in the all-light state (all-light state) corresponding to the first rated power or the second rated power, and the light intensity corresponding to the use environment. There is an effect that it can be easily selected. Since the lighting fixture according to the present invention can select the light intensity according to the environment, there is an effect that energy saving can be realized by avoiding unnecessary power consumption.

  Moreover, since the lighting fixture which concerns on this invention switches the rated power to supply and switches all lamp states, since at least 2 types of light intensity can be set with a single lighting fixture, it is the specification as a lighting fixture. The contents can be expanded to widen the demand range (applicable range) and to have versatility, and as a result, the manufacturing cost can be suppressed.

It is a circuit block diagram which shows the schematic circuit block of the lighting fixture which concerns on Embodiment 1 of this invention. It is a circuit block diagram which shows the detailed structure of the rated power selection circuit of the lighting fixture shown in FIG. It is a top view which shows notionally the planar state of the lamp surface of the lighting fixture which concerns on Embodiment 2 of this invention. It is a perspective view which shows the detailed structure of the light receiver housing | casing of the lighting fixture shown in FIG. It is a disassembled perspective view which decomposes | disassembles and shows the light receiver housing | casing shown to FIG. 4A. It is a circuit block diagram which shows schematic structure of the conventional lighting fixture.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Embodiment 1>
Based on FIG. 1 and FIG. 2, the lighting fixture which concerns on this Embodiment is demonstrated.

  FIG. 1 is a circuit block diagram showing a schematic circuit block of the lighting apparatus according to Embodiment 1 of the present invention.

  FIG. 2 is a circuit block diagram showing a detailed configuration of the rated power selection circuit of the lighting fixture shown in FIG.

  The lighting fixture 1 according to the present embodiment includes a rectifier circuit 11 that converts alternating current supplied from an alternating current power supply AC into direct current, a booster circuit 13 that boosts the output of the rectifier circuit 11, and a direct current output from the booster circuit 13. Is converted to a high-frequency alternating current and supplied to the lamp Lp. The rectifier circuit 11 is composed of, for example, a full-wave rectifier circuit, and the booster circuit 13 is composed of, for example, a chopper booster circuit. Further, the inverter circuit 16 is configured to change the frequency of the high-frequency alternating current output by the frequency adjustment circuit 17, and is configured to adjust the frequency by changing the frequency and changing the power supplied to the lamp Lp. .

  In addition, the luminaire 1 has a rated power selection circuit 23 that generates a rated power selection signal Sg23 that indicates whether the first rated power or the second rated power supplied to the lamp Lp is selected, and the rated power selection signal Sg23. And a rated power specifying circuit 25 that specifies either the first rated power or the second rated power based on the power rating, and the rated power specifying circuit 25 corresponds to either the specified first rated power or the second rated power. Thus, the booster circuit 13 and the inverter circuit 16 are controlled.

  Therefore, the luminaire 1 according to the present invention selects either the first rated power or the second rated power by the rated power selection circuit 23, and corresponds to either the selected first rated power or second rated power. Thus, the rated power specifying circuit 25 is configured to control the booster circuit 13 and the inverter circuit 16.

  That is, the luminaire 1 can easily switch the light intensity in the all-light state (all-light state) corresponding to the first rated power or the second rated power, and easily select the light intensity according to the usage environment. can do. Therefore, since the lighting fixture 1 can select the light intensity according to an environment, it can avoid useless power consumption and can implement | achieve energy saving.

  Moreover, since the lighting fixture 1 switches the rated power to supply (1st rated power or 2nd rated power) and switches all the lighting states, it sets at least two types of light intensity with the single lighting fixture 1. Therefore, it is possible to expand the specification content as the lighting fixture 1 to widen the demand range (applicable range) and to have versatility, thereby suppressing the manufacturing cost.

  The first rated power indicates that the output when the entire lamp state is set (100% output state at the time of dimming) is, for example, 86 W (watts), and the second rated power indicates the all lamp state ( It shows that the output when it is set to 100% output state during dimming is, for example, 76 W (watts).

  Therefore, when the same lamp is used, it is possible to switch between the state in which the first rated power is supplied as the all-lamp state and the state in which the second rated power is supplied as the all-lamp state, and the use environment Therefore, the user can freely select the rated power. That is, since the user can easily select the output specification, it is possible to use with low power consumption according to the use environment, and the energy saving mode can be easily realized. The number of lamps Lp can be set as appropriate.

  The luminaire 1 adjusts the power supplied to the lamp Lp based on the remote control light receiving circuit 21 that receives the light signal for dimming from the remote control terminal (not shown) and the light signal received by the remote control light receiving circuit 21. And a light control circuit 22.

  Therefore, since the lighting fixture 1 supplies the dimming power (for example, 100% output-0% output) which adjusted the ratio with respect to 1st rated power or 2nd rated power to the lamp Lp, adjustment of the light intensity by remote control control (Dimming) can be easily performed. The remote control light receiving circuit 21 constitutes the remote control light receiver 20 corresponding to the remote control terminal.

  In the lighting fixture 1, the dimming signal from the dimming circuit 22 is input to the frequency adjustment circuit 17, and the frequency adjustment circuit 17 adjusts the frequency of the high-frequency alternating current generated by the inverter circuit 16 according to the dimming signal. is there. Therefore, the inverter circuit 16 performs dimming of the lamp Lp by adjusting the power supplied to the lamp Lp in accordance with the dimming signal from the dimming circuit 22.

  The rated power selection circuit 23 includes a selection switch 24 that receives selection of either the first rated power or the second rated power. Therefore, it is possible to easily generate the rated power selection signal Sg23 to cause the rated power specifying circuit 25 to function correctly and to switch the first rated power or the second rated power easily and with high accuracy.

  The selection switch 24 generates a rated power selection signal Sg23 by using a power source connected to the remote control light receiving circuit 21. Therefore, the luminaire 1 can configure the rated power selection circuit 23 using the remote control light receiving circuit 21 (the power source that supplies power to the remote control light receiving circuit 21) housed in the remote control light receiver 20. The rated power can be selected with a simple configuration.

  In the present embodiment, the rated power selection circuit 23 is juxtaposed with the remote control light receiving circuit 21 and housed in the remote control light receiver 20. Therefore, the high terminal Hi of the selection switch 24 is defined by setting the positive side of the power source connected to the remote control light receiving circuit 21 to the high level, and the reference side of the power source connected to the remote control light receiving circuit 21 is set to the low level. Terminal Lo can be defined.

  For example, when the normal state is the first rated power 86 W and the selection switch 24 corresponds to the low terminal Lo, the reference-side potential (low level) at the power source of the remote control light receiving circuit 21 is the rated power selection signal Sg23. The Further, when the rated power is switched to the second rated power of 76 W in the energy saving mode and the selection switch 24 is made to correspond to the high terminal Hi, the positive potential (high level) at the power source of the remote control light receiving circuit 21 is the rated power. The selection signal Sg23 is obtained.

  The relationship between the first rated power and the second rated power as the rated power and the high terminal Hi and the low terminal Lo of the selection switch 24 can be set as appropriate, and is set opposite to the above-described example. Is also possible. The rated power specifying circuit 25 can be configured by incorporating an appropriate logic circuit such as a CPU (Central Processing Unit).

  The booster circuit 13 includes an output level adjustment circuit 14 that adjusts an output level, the inverter circuit 16 includes a frequency adjustment circuit 17 that adjusts an output frequency, and the rated power specifying circuit 25 is a rated power selection signal Sg23. The output level adjustment circuit 14 adjusts the output level of the booster circuit 13 and the frequency adjustment circuit 17 adjusts the frequency of the inverter circuit 16 based on (high level, low level).

  Therefore, the luminaire 1 identifies either the first rated power or the second rated power based on the rated power selection signal Sg23 that selects either the first rated power or the second rated power, and the first rated power. Either power or second rated power can be easily and accurately supplied to the lamp Lp as a load.

  As described above, when the rated power selection signal Sg23 is at a low level, the rated power is a normal mode in which, for example, normal first rated power 86W is supplied. When the rated power selection signal Sg23 is at a high level, the rated power is For example, in this mode, the second rated power 76W in the energy saving mode is supplied. In the normal mode, the rated power specifying circuit 25 supplies a high level signal to the output level adjustment circuit 14 and the frequency adjustment circuit 17 to place the booster circuit 13 and the inverter circuit 16 in a normal operation state.

  When the selection switch 24 is switched from the low level state to the high level state, the rated power specifying circuit 25 supplies a low level signal to the output level adjustment circuit 14 and the frequency adjustment circuit 17. Therefore, the booster circuit 13 changes the output of the booster circuit 13 to a low level, the inverter circuit 16 changes the frequency to a high value frequency, and the lighting fixture 1 supplies the rated power supplied to the lamp Lp. It can be changed to the second rated power.

  That is, when the rated power is changed from a large 86 W (first rated power) to a small 76 W (second rated power), the output from the booster circuit 13 is changed to a relatively low level. By setting the output frequency to a relatively high value, the rated power can be easily changed with high accuracy.

<Embodiment 2>
Based on FIG. 3 thru | or FIG. 4B, the lighting fixture which concerns on this Embodiment is demonstrated.

  The lighting fixture 1 which concerns on this Embodiment is the same as the lighting fixture 1 which concerns on Embodiment 1, uses a code | symbol and mainly demonstrates a different matter.

  FIG. 3 is a plan view conceptually showing the planar state of the lamp surface of the lighting fixture according to Embodiment 2 of the present invention.

  4A is a perspective view illustrating a detailed configuration of a light receiver housing of the lighting fixture illustrated in FIG. 3.

  FIG. 4B is an exploded perspective view showing the receiver housing shown in FIG. 4A in an exploded manner.

  The luminaire 1 according to the present embodiment includes a luminaire housing 1c that fixes, for example, two lamps Lp. In addition, a light receiver housing 30 that houses a remote control light receiver 20 (remote control light receiving circuit 21) is disposed in the lighting fixture housing 1 c, and the light receiver housing 30 receives light that introduces an optical signal into the remote control light receiving circuit 21. A window 35 is provided.

  That is, the luminaire 1 includes a light receiver housing 30 that houses the remote control light receiving circuit 21, and the light receiver housing 30 includes a light receiving window 35 that allows an optical signal to enter the remote control light receiving circuit 21. The optical axis Lax is rotated so as to be displaced in the displacement direction (for example, arrow Ds).

  Therefore, since the lighting fixture 1 according to the present invention displaces the optical axis Lax formed by the light receiving window 35, the light receiving sensitivity can be easily adjusted with high accuracy.

  The light receiver housing 30 includes a housing side surface 32 that intersects the housing surface 31 on which the light receiving window 35 is disposed, and guide plates 36 disposed on both sides facing the housing side surface 32 include a light receiver. The housing 30 is supported so as to rotate.

  Therefore, since the lighting fixture 1 can rotate the light receiver housing 30 in a stable state by the guide plate 36 disposed on the housing side surface 32, the light receiving sensitivity can be adjusted easily and with high accuracy. be able to.

  In the present embodiment, the rotation shaft 34 is disposed on the housing side surface 32 of the light receiver housing 30 and is inserted into the rotation shaft support hole 37 of the guide plate 36. On the other hand, any configuration may be employed as long as the receiver housing 30 is rotatable. For example, the rotating shaft 34 can be configured to penetrate both the guide plate 36 and the light receiver housing 30, or to be provided in the guide plate 36 and inserted into the light receiver housing 30.

  The housing side surface 32 includes a protrusion 33, and the guide plate 36 includes a plurality of recesses 38 that are arranged so that the protrusion 33 fits. Accordingly, the luminaire 1 can be easily displaced with high accuracy and fixed with the optical axis Lax of the light receiving window 35, and the light receiving sensitivity can be adjusted easily and with high accuracy. In addition, the light receiving sensitivity can be adjusted in multiple stages, and the light receiving sensitivity corresponding to the use environment can be set, so that accuracy and convenience can be improved.

  One protrusion 33 is provided for one housing side surface 32, and a plurality of recesses 38 are arranged. Therefore, a plurality of rotational positions of the light receiver housing 30 can be set with respect to the guide plate 36, and the light receiving sensitivity can be changed to a plurality of levels. For example, about 5 to 10 concave portions 38 can be arranged at an angular interval of about 5 to 10 degrees, for example. The recess 38 may be configured to penetrate the guide plate 36. Further, it is desirable that the protrusion 33 has an appropriate sliding property with respect to the housing side surface 32.

  Furthermore, by selecting either the first rated power or the second rated power, even when the light intensity of the lamp Lp varies and the influence reaches the remote control light receiving circuit 21, the influence of the light intensity of the lamp Lp is suppressed. Thus, the remote control light receiver 20 can be operated with high accuracy.

  In addition, since the arrangement position of the receiver housing 30, the arrangement direction of the receiver housing 30, the arrangement pitch of the concave portions 38, the arrangement range of the concave portions 38, etc. have different influences depending on the shape and arrangement state of the lamp Lp. It is desirable to set appropriately considering the shape of the lighting fixture housing 1c.

  As described above, the luminaire 1 includes the luminaire housing 1c that fixes the lamp Lp. The guide plate 36 is fixed to the lighting fixture housing 1c. Accordingly, the luminaire 1 can stably rotate the light receiver housing 30 and can easily and accurately adjust the light receiving sensitivity.

  The selection switch 24 is disposed in the light receiver housing 30. Therefore, the luminaire 1 can execute the adjustment of the light receiving sensitivity and the selection of the rated power, and can improve the installation property and the operability.

  As described above, the lighting fixture 1 according to the present embodiment includes the remote control light receiving circuit 21 that receives the light signal for dimming from the remote control terminal, and the light receiver housing 30 that houses the remote control light receiving circuit 21. The light receiver housing 30 includes a light receiving window 35 through which an optical signal is incident on the remote control light receiving circuit 21, and is configured to rotate so as to displace the optical axis Lax formed by the light receiving window 35.

  Therefore, the luminaire 1 can be dimmed by remote control and displaces the optical axis Lax formed by the light receiving window 35 through which the optical signal is incident on the remote control light receiving circuit 21. Can be adjusted.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 1c Lighting fixture housing | casing 11 Rectifier circuit 13 Booster circuit 14 Output level adjustment circuit 16 Inverter circuit 17 Frequency adjustment circuit 20 Remote control light receiver 21 Remote control light reception circuit 22 Dimming circuit 23 Rated power selection circuit 24 Selection switch 25 Rated power specification Circuit 30 Receiver housing 31 Housing surface 32 Housing side surface 33 Projection portion 34 Rotating shaft 35 Light receiving window 36 Guide plate 37 Rotating shaft support hole 38 Recessed portion AC AC power supply Hi High terminal Lax Optical axis Lo Low terminal Lp Lamp Sg23 Rated power Selection signal

Claims (3)

A luminaire comprising: a rectifier circuit that converts alternating current into direct current; a booster circuit that boosts the output of the rectifier circuit; and an inverter circuit that converts direct current output from the booster circuit into high-frequency alternating current and supplies the alternating current to a lamp. There,
A rated power selection circuit for generating a rated power selection signal indicating whether the first rated power or the second rated power supplied to the lamp is selected;
A rated power specifying circuit that specifies either the first rated power or the second rated power based on the rated power selection signal;
The said rated power specific circuit is set as the structure which controls the said voltage booster circuit and the said inverter circuit corresponding to either the said 1st rated power or the said 2nd rated power. The lighting fixture according to claim 1,
The rated power selection circuit includes a selection switch that receives selection of either the first rated power or the second rated power. The lighting apparatus according to claim 2,
A remote control light receiving circuit for receiving a light signal for dimming from a remote control terminal, and a light receiver housing housing the remote control light receiving circuit,
The light receiving housing includes a light receiving window for allowing an optical signal to enter the remote control light receiving circuit, and is configured to rotate so as to displace an optical axis formed by the light receiving window. .

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