JP5771771B2 - Lighting apparatus and lighting apparatus using the same - Google Patents

Description

  The present invention relates to a lighting device and a lighting fixture using the same.

  In recent years, there has been a demand for an organic EL lighting apparatus that illuminates a wide space such as a room using an organic electroluminescence element (hereinafter referred to as “organic EL element”) as a light source. Here, if the size of the organic EL element itself is increased as it is in order to illuminate a wide space, it becomes difficult to uniformly form the film thickness of the organic light emitting layer constituting the organic EL element. In addition, problems such as light emission unevenness (luminance unevenness) easily occur due to a voltage drop due to the resistance of the electrode material.

  Therefore, conventionally, a single organic EL element is used as one surface emitting module, a large number of these surface emitting modules are arranged in a row, and a power receiving terminal, that is, a module terminal is connected in parallel to supply lighting power. A lighting fixture that illuminates a space has been proposed (see, for example, Patent Document 1).

JP 2009-152009 A

  By the way, when it is desired to change the light output for each surface emitting module (light source) in consideration of design, it is necessary to perform independent light output control for each light source. In addition, if you want to make uniform the light output as a whole by correcting the difference in light output for each light source caused by temperature characteristics and the edge of the light source (part where light overlap is small), independent light output for each light source It is necessary to control. However, since the conventional example is configured to collectively supply lighting power to a plurality of light sources arranged in a row, complicated external signal control is required when performing independent light output control for each light source. . For this reason, there are problems that the circuit becomes complicated by providing a circuit necessary for performing complicated external signal control, and that the operation of the optical output control becomes complicated.

  The present invention has been made in view of the above points, and provides a lighting device that can easily perform independent light output control for each light source without requiring complicated external signal control, and a lighting fixture using the same. The purpose is to provide.

The lighting device of the present invention includes one or more light sources, a lighting device that supplies power necessary for lighting to the light sources, and a light source and a lighting device that are provided in the lighting device and electrically connected to each other. Or at least one of the light source and the lighting device has a plurality of pairs of connection terminals, and power is supplied to the light source between the light source and the lighting device. A plurality of power supply paths to be supplied are provided, and are configured to switch the power supply path by switching the connection between the connection terminal on the light source side and the connection terminal on the lighting device side, and the light source includes the lighting device by changing the attaching angle to the side of the connection terminal, wherein the light source side is configured of a to switch the connection connecting terminal and the connecting terminal of the lighting device side, before Symbol light source is a planar light source for surface emission The plurality of pairs of connection terminals of either the light source or the lighting device are connected to one power supply connection terminal connected to the high voltage side output terminal of the lighting device and to the ground side output terminal of the lighting device. One of the light source and the lighting device, the other connection terminal of the light source is disposed at the center position of the light source when the light source is installed. The other ground connection terminal connected to the other connection terminal, and a plurality of the connection terminals for power feeding are arranged at predetermined intervals along the circumferential direction around the other ground connection terminal. The other power supply connection terminal connected to the terminal, and the one power supply connection terminal and the other power supply connection by rotating the light source around the other ground connection terminal. Switch connection to terminal And wherein the Rukoto.

In this illuminating device, it is preferable that the light source is provided with a changeover switch that switches connection between the connection terminal on the light source side and the connection terminal on the lighting device side.

  In this lighting device, the light source is preferably composed of an organic electroluminescence element.

  The lighting fixture of the present invention includes any one of the above lighting devices.

  In the present invention, since the power supply path for supplying power to the light source can be changed simply by switching the connection between the connection terminal on the light source side and the connection terminal on the lighting device side, each light source does not require complicated external signal control. Independent light output control can be easily performed.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows Embodiment 1 of the illuminating device which concerns on this invention, (a) is a whole schematic diagram, (b) is sectional drawing of a light source. It is a figure which shows Embodiment 2 of the illuminating device based on this invention, (a) is a whole schematic diagram, (b) is an external appearance perspective view of a light source, (c) is sectional drawing which a part of (b) abbreviate | omitted. is there. (A)-(d) is the internal schematic of the light source in each same as the above. It is a figure which shows Embodiment 3 of the illuminating device based on this invention, (a) is a whole schematic diagram, (b) is a circuit schematic diagram inside a light source, (c) is an example of the concrete circuit structure inside a light source. (D), (e) is a perspective view of the light source which shows the example of arrangement | positioning of a light source, respectively. It is a figure which shows another structure same as the above, (a) is a whole schematic diagram, (b) is a circuit diagram inside a light source, (c) is a table | surface which shows the relationship between the rotation angle of a light source, and the connection terminal on the light source side. It is. It is a whole schematic diagram showing the case where a plurality of pairs of connection terminals are provided in the lighting device same as above. It is a figure which shows Embodiment 4 of the illuminating device based on this invention, (a) is a whole schematic diagram, (b) is a perspective view of a light source, (c) is a side view of (b), (d) is a figure. It is a disassembled perspective view of (b), (e) is a block diagram which shows the connection relation of a light source and a lighting device. It is a figure which shows Embodiment 5 of the illuminating device based on this invention, (a) is principal part explanatory drawing, (b) is a circuit diagram inside a light source, (c) is the schematic which shows another structure. (A), (b) is the whole schematic which shows an example of embodiment of the lighting fixture which concerns on this invention.

(Embodiment 1)
Hereinafter, Embodiment 1 of the lighting device according to the present invention will be described with reference to the drawings. In this embodiment, as shown in FIG. 1A, a plurality of (three in the figure) light sources 1 connected in parallel, a lighting device 2 that supplies power necessary for lighting to each light source 1, and lighting The apparatus 2 includes three power supply rails 3 electrically connected to the output terminal on the high voltage side and the output terminal on the ground side.

  The light source 1 is an organic EL panel having an organic EL element as a light emitter. As shown in FIG. 1B, the light source 1 houses the light emitting panel 10 and the light emitting panel 10, and the upper surface in FIG. And a flat rectangular parallelepiped case 11. The light emitting panel 10 includes a glass substrate 10A, a transparent electrode 10B, an organic light emitting layer 10C, a metal electrode 10D, and a pair of module terminals 10E and 10F drawn from the transparent electrode 10B and the metal electrode 10D, respectively. . An organic layer is formed by sandwiching the organic light emitting layer 10C between the transparent electrode 10B and the metal electrode 10D.

  The glass substrate 10A has translucency for light emission from the organic light emitting layer 10C. The transparent electrode 10B is made of an ITO (Indium Tin Oxide) vapor-deposited film, and has a light-transmitting property with respect to light emitted from the organic light-emitting layer 10C, like the glass substrate 10A. Further, the metal electrode 10D is made of a conductive thin film (for example, an aluminum vapor deposition film) and has translucency. The transparent electrode 10B is connected to one module terminal 10E to be an anode, and the metal electrode 10D is connected to the other module terminal 10F to be a cathode. The module terminals 10E and 10F are arranged at symmetrical positions in the vertical direction in FIG. 1A of the light source 1, and one end of the power supply line 100 is connected to each of the module terminals 10E and 10F. These module terminals 10E and 10F constitute a connection terminal on the light source 1 side.

  In the present embodiment, an organic EL panel using an organic EL element as a light emitter is used as the light source 1, but an inorganic EL panel using an inorganic EL element as a light emitter may be used. Moreover, as the light source 1, you may use the surface light source unit which combined LED and the light-guide plate which guide | induces the emitted light from LED and carries out surface emission. Further, a direct type or edge light type surface light source unit having a cold cathode fluorescent lamp may be used as the light source 1.

  The lighting device 2 includes a rectifying unit 20 that rectifies an AC voltage from the commercial power source AC1 and a DC power source unit 21 that converts the pulsating voltage from the rectifying unit 20 into a DC voltage and outputs the DC voltage. Further, the lighting device 2 is connected in parallel with a first output unit 22 and a second output unit 23 that convert a DC voltage from the DC power supply unit 21 into a desired voltage and output it.

  The rectifying unit 20 is configured by a circuit in which, for example, four diodes (not shown) are connected by a full bridge. The DC power supply unit 21 is constituted by, for example, a PFC circuit having a switching element (not shown), and the switching element is driven at several tens kHz to several hundreds kHz. Note that the DC power supply unit 21 may use a chopper circuit such as a step-down chopper circuit, a step-up chopper circuit, and a step-up / step-down chopper circuit instead of the PFC circuit. Furthermore, instead of the rectifying unit 20 and the DC power supply unit 21, a simple DC power supply may be used as the lighting device 2.

  The first output unit 22 includes a step-down chopper circuit including a switching element Q1 made of, for example, an FET, a diode D1, an inductor L1, and a capacitor C1, and the switching element Q1 has a frequency of several tens of kHz to several hundreds of kHz. To drive. Similar to the first output unit 22, the second output unit 23 includes a step-down chopper circuit including a switching element Q2, a diode D2, and a capacitor C2. The switching element Q2 has several tens of kHz to several hundreds. Drive at kHz.

  The first output unit 22 includes a detection resistor R1 connected in series to the output-side ground terminal for detecting a load current. The first output unit 22 includes a comparator 22B in which the voltage applied to the detection resistor R1 is input to the inverting input terminal and the reference voltage from the reference voltage source 22A is input to the non-inverting input terminal. Prepare. Therefore, the detection resistor R1 and the comparator 22B perform feedback control by switching the switching element Q1 on and off so that the output voltage of the first output unit 22 becomes a constant DC voltage.

  Similarly to the first output unit 22, the second output unit 23 receives the detection resistor R2 and the voltage applied to the detection resistor R2 to the inverting input terminal, and the reference voltage from the reference voltage source 23A. Is provided to a non-inverting input terminal. Therefore, similarly to the first output unit 22, the detection resistor R2 and the comparator 23B switch on / off the switching element Q2 so that the output voltage of the second output unit 23 becomes a constant DC voltage. Feedback controlled.

  Here, the reference voltage of the reference voltage source 22A of the first output unit 22 and the reference voltage of the reference voltage source 23A of the second output unit 23 are different from each other. Therefore, the power supplied from the lighting device 2 to the light source 1 via the first output unit 22 is different from the power supplied from the lighting device 2 to the light source 1 via the second output unit 23. That is, in the present embodiment, the path via the first output unit 22 and the path via the second output unit 23 constitute an electric power supply path.

  Note that the first output unit 22 and the second output unit 23 are not limited to the step-down chopper circuit, and may be configured by other circuit systems as long as they output a DC voltage. For example, when the first output unit 22 and the second output unit 23 are configured by a switching power supply by PWM control, the output voltage can be varied by changing the on-duty ratio. For this reason, adjustment of the light output of each light source 1 and dimming control can be performed.

  The power supply rail 3 is made of a plate-like conductive member, and is fixed to the ceiling or wall. Of the three power supply rails 3, two power supply rails 30 and 31 are a high-voltage side output terminal of the first output unit 22 of the lighting device 2 and a high-voltage side output terminal of the second output unit 23. And connected to each. The remaining one power supply rail 32 is connected to the ground-side output terminals of the output units 22 and 23 of the lighting device 2. That is, the pair of power supply rails 30 and 32 and the pair of power supply rails 31 and 32 constitute a plurality of pairs (two pairs in the present embodiment) of the lighting device 2 side connection terminals.

  Therefore, the first output unit is connected to the light source 1 by connecting the other end of the power supply line 100 from the module terminals 10E and 10F of the light source 1 to one power supply rail 30 on the high voltage side and the power supply rail 32 on the ground side. 22 output voltage is applied, and the light source 1 emits light. Similarly, by connecting the other end of the power supply line 100 from the module terminals 10E and 10F of the light source 1 to the other power supply rail 31 on the high voltage side and the power supply rail 32 on the ground side, respectively, the second output to the light source 1 is achieved. The output voltage of the unit 23 is applied, and the light source 1 emits light. Thus, the light output of the light source 1 can be changed depending on which of the power supply rails 30 and 31 on the high voltage side the other end of the power supply line 100 from the module terminal 10E of the light source 1 is connected. That is, the power supply path can be switched by switching the connection between the connection terminal on the light source 1 side and the connection terminal on the lighting device 2 side.

  The connection terminal on the light source 1 side and the connection terminal on the lighting device 2 side may have any configuration as long as they can be electrically connected to each other. In addition, for example, it is preferable to provide a quick connection terminal structure on the power supply rail 3 because the connection of the power supply line 100 becomes easy.

  As described above, in the present embodiment, the power supply path for supplying power to the light source 1 can be changed simply by switching the connection between the connection terminal on the light source 1 side and the connection terminal on the lighting device 2 side. Independent light output control can be easily performed for each light source 1 without requiring control. Specifically, in the present embodiment, as shown in FIG. 1A, the light sources 1 on both sides sandwiching the center are connected in parallel to one high-voltage side power supply rail 30, and the remaining light sources 1 are connected to the other high-voltage side. It is connected to the power feeding rail 31 on the side. For this reason, the light sources 1 on both sides of the central light source 1 can collectively control the light output via the first output unit 22. If it is desired to collectively control the light output of all the light sources 1 via the first output unit 22, the other end of the power supply line 100 connected to the central light source 1 is connected to one high-voltage side power supply rail. Just connect to 30. Thus, in this embodiment, since each light source 1 can be freely attached with respect to the electric power feeding rails 30-32, the light output of each light source 1 can also be changed easily.

  Here, the light output of the light source 1 may be controlled by a preset voltage (current), or may be controlled by an external signal, a controller, or the like. When controlling with an external signal, a controller, etc., the light source 1 on the same electric power supply path | route can be controlled collectively. Therefore, necessary members and circuits can be simplified as compared with the case where an external signal control unit, a controller, and the like are provided for each light source 1, and the light output of the light source 1 that requires the same brightness can be collectively controlled.

  An external signal control unit, a controller, and the like may be prepared for each power supply path. Further, the light output of the light source 1 on each power supply path is set by one controller in a state in which the relationship such as the ratio or difference of the supply power in each power supply path is set in advance using initial settings or other controllers. It is also possible to have a configuration in which the above are controlled collectively. Moreover, you may perform each above-mentioned control using a microcomputer.

(Embodiment 2)
Hereinafter, Embodiment 2 of the lighting device according to the present invention will be described with reference to the drawings. However, since the basic configuration of the present embodiment is common to that of the first embodiment, common portions are denoted by the same reference numerals and description thereof is omitted. As shown in FIG. 2A, the present embodiment includes a plurality (three in the drawing) of light sources 1 and a lighting device 2, and a plurality of pairs (two pairs in the present embodiment) are connected to each light source 1. A terminal is provided. Each light source 1 is connected to the lighting device 2 in parallel.

  As shown in FIGS. 2B and 2C, the light source 1 accommodates the light emitting panel 10 and the light emitting panel 10 and has a flat rectangular parallelepiped shape with the upper surface (front surface) in FIG. 2B as the light emitting surface 11A. The case 11 is provided. Note that the light emitting panel 10 of the present embodiment is different from the light emitting panel 10 of the first embodiment in that a glass layer 10G is further laminated on the metal electrode 10D. In the present embodiment, the printed circuit board 4 on which various electronic components 40 are mounted is housed in the case 11, and a circuit that forms a power supply path to be described later is configured by these electronic components 40.

  A pair of module terminals (not shown) of the light emitting panel 10 is connected to an output side electrode part (not shown) of a circuit mounted on the printed circuit board 4. A plurality (three in the figure) of power supply side terminal portions V1 exposed on the upper surface (back surface) of FIG. 2A of the case 11 are provided on the input side electrode portion of the circuit mounted on the printed circuit board 4. , V2 and the ground side terminal portion G1 are connected. These terminal portions V1, V2, and G1 have a quick connection terminal structure, and one end of the power supply line 100 from the lighting device 2 is connected thereto. That is, a pair of terminal portions V1 and G1 and a pair of terminal portions V2 and G1 constitute a plurality of pairs (two pairs in the present embodiment) on the light source 1 side.

  The lighting device 2 includes a rectification unit (not shown) and a DC power supply unit (not shown), as in the first embodiment. The other end of the feeder 100 is connected to the high-voltage side output terminal and the ground-side output terminal of the lighting device 2. That is, the output terminal on the high voltage side and the output terminal on the ground side of the lighting device 2 constitute a connection terminal on the lighting device 2 side.

  Hereinafter, a circuit constituting a power supply path built in the light source 1 will be described with reference to the drawings. As shown in FIG. 3A, the light source 1 is provided between the terminal portions V1 and V2 and the light emitting panel 10, and the direct current voltage supplied from the lighting device 2 is controlled to a predetermined direct current voltage. Output variable section 12 is provided. The output variable unit 12 includes, for example, a step-down chopper circuit and a switching power supply by PWM control, and steps down or boosts a DC voltage supplied from the lighting device 2 and outputs the voltage. In addition, a driving power supply unit 13 that supplies a driving DC voltage to the output variable unit 12 is provided inside the light source 1. Note that the ground-side terminals of the output variable section 12 and the drive power supply section 13 are both connected to the ground-side terminal section G1. Further, a diode D3 is inserted between the terminal portion V1 and the input terminal on the high voltage side of the output variable portion 12 to prevent a backflow of current flowing through the terminal portion V2.

  Here, the output variable portion 12 is provided with an output adjustment terminal 12A connected to the terminal portion V1, and when a voltage is applied to the output adjustment terminal 12A via the terminal portion V1, the output variable portion 12A. Control is performed to step down the output voltage of the unit 12 to a predetermined DC voltage. Therefore, when the output terminal on the high voltage side of the lighting device 2 and the terminal portion V2 are connected and when the output terminal on the high voltage side of the lighting device 2 and the terminal portion V1 are connected, The output voltage is different. In other words, in the present embodiment, the path via the terminal part V1 and the output variable part 12 and the path via the terminal part V2 and the output variable part 12 constitute a power supply path. For this reason, a power supply path | route can be switched by switching whether the output terminal of the high voltage | pressure side of the lighting device 2 is connected to which of terminal part V1, V2.

  As described above, in the present embodiment, the power supply path for supplying power to the light source 1 can be changed simply by switching the connection between the connection terminal on the light source 1 side and the connection terminal on the lighting device 2 side. Similar effects can be achieved. Instead of configuring a circuit that forms a power supply path with the output variable unit 12 and the drive power supply unit 13, as shown in FIG. 3B, the first output unit 22 and the second output unit 23 use power. You may comprise the circuit which comprises a supply path. Here, a backflow prevention diode D3 is inserted between the first output unit 22 and the light emitting panel 10 and between the second output unit 23 and the light emitting panel 10, respectively. In the case of this configuration, the power supply path via the first output unit 22 and the second output unit 23 are switched by switching to which of the terminal units V1 and V2 the output terminal on the high voltage side of the lighting device 2 is connected. It is possible to switch between power supply paths via the.

  Further, as shown in FIG. 3C, a plurality of (two in the drawing) light emitting panels 10 are provided inside the light source 1, one light emitting panel 10 is connected to the output terminal of the first output unit 22, and the other The light emitting panel 10 may be connected to the output terminal of the second output unit 23. In the case of this configuration, when the output terminal on the high voltage side of the lighting device 2 and the terminal portion V1 are connected, one light emitting panel 10 emits light. When the output terminal on the high voltage side of the lighting device 2 and the terminal portion V2 are connected, the other light emitting panel 10 emits light. For this reason, the light output of the light source 1 can be switched by switching to which of the terminal portions V1 and V2 the output terminal on the high voltage side of the lighting device 2 is connected. At this time, if the light emission colors of the respective light emitting panels 10 are different from each other, the light emission color of the light source 1 can be switched by switching to which of the terminal portions V1 and V2 the output terminal on the high voltage side of the lighting device 2 is connected. Can be switched.

  Further, as shown in FIG. 3D, the terminal portion V1 and the first output portion 22 are connected via a backflow preventing diode D3, and the terminal portion V2 and the first output portion 22 are connected. Similarly, a configuration in which a diode D3 for preventing backflow is inserted in between may be used. In the case of this configuration, when the output terminal on the high voltage side of the lighting device 2 and the terminal portion V2 are connected, one light emitting panel 10 emits light. And when the output terminal and the terminal part V1 of the high voltage | pressure side of the lighting device 2 are connected, both the light emission panels 10 will light-emit. For this reason, similarly to the above, the light output or emission color of the light source 1 can be switched by switching to which of the terminal portions V1 and V2 the output terminal on the high voltage side of the lighting device 2 is connected.

(Embodiment 3)
Hereinafter, Embodiment 3 of the lighting device according to the present invention will be described with reference to the drawings. However, since the basic configuration of the present embodiment is common to that of the second embodiment, common portions are denoted by the same reference numerals and description thereof is omitted. As shown in FIG. 4A, the present embodiment includes a light source 1 and a lighting device 2, and a plurality of pairs (four pairs in the present embodiment) on the lower surface (back surface) of the case 11 of the light source 1 in FIG. Connection terminals are provided.

  As in the second embodiment, the light source 1 includes a light-emitting panel 10 (see FIG. 4B) and a printed circuit board (not shown) on which a circuit that forms a power supply circuit to be described later is mounted. It is housed in a case 11. A ground-side terminal portion G1 to which a contact portion 2A for grounding described later is connected is provided at the center of the back surface of the case 11. And centering on this terminal part G1, four terminal parts V1-V4 for electric power feeding to which the contact part 2B for electric power feeding mentioned later is connected are provided at equal intervals along the circumferential direction. That is, the terminal portions V1 and G1, the terminal portions V2 and G1, the terminal portions V3 and G1, and the terminal portions V4 and G1 that form a pair constitute a connection terminal on the light source 1 side.

  The lighting device 2 includes a rectification unit (not shown) and a DC power supply unit (not shown), as in the first embodiment. Then, a grounding contact point connected to either the grounding terminal portion G1 of the light source 1 or the power feeding terminal portions V1 to V4 to the high-voltage side output terminal and the grounding-side output terminal of the lighting device 2, respectively. The part 2A is connected to the contact point 2B for feeding. That is, the contact point 2A for grounding and the contact point 2B for feeding constitute a connection terminal on the lighting device 2 side.

  Note that the terminal portions V1 to V4 and G1 on the light source 1 side and the contact portions 2A and 2B on the lighting device 2 side may be configured to be electrically connected to each other. For example, the terminal portions V1 to V4 and G1 may be constituted by rod-shaped pin terminals, and the contact portions 2A and 2B may be constituted by connectors into which the pin terminals are inserted.

  Hereinafter, a circuit constituting a power supply path built in the light source 1 will be described with reference to the drawings. Inside the light source 1, as shown in FIG. 4B, an output variable unit 12 is provided between the terminal units V <b> 1 to V <b> 4 and the light emitting panel 10. And inside the light source 1, while being connected to the terminal parts V1-V3, the output control part 14 which controls the output voltage of the output variable part 12 according to which of the terminal parts V1-V3 is connected. Is provided. Further, a backflow preventing diode D3 is inserted between each of the terminal portions V1 to V3 and the output variable portion 12.

  The output control unit 14 is provided with three input terminals 14A to 14C corresponding to the terminal units V1 to V3. The output control unit 14 determines which input terminals 14A to 14C are applied with the voltage. Accordingly, the output voltage of the output variable section 12 is controlled so as to have different levels. In other words, in the present embodiment, a path through the terminal unit V1 and the output variable unit 12, a path through the terminal unit V2 and the output variable unit 12, a path through the terminal unit V3 and the output variable unit 12, a terminal unit V4 and Each of the paths through the output variable unit 12 constitutes a power supply path. For this reason, a power supply path | route can be switched by switching to which of the terminal parts V1-V4 the contact part 2A for electric power feeding is connected.

  Here, apart from the above circuit, an example of a specific circuit configuration of a circuit forming a power supply path built in the light source 1 is shown in FIG. In the figure, each of the terminal portions V1 to V4 is connected to an input terminal on the high voltage side of the output variable portion 12 via a backflow preventing diode D3. A series resistance circuit 16 in which two resistors are connected in series is connected between each of the terminal portions V1 to V4 and the grounding terminal portion G1.

  Each terminal part V1-V4 is connected to the power supply part 15 for adjustment which outputs a fixed DC voltage, respectively. The adjustment power supply unit 15 steps down the DC voltage supplied from the lighting device 2 via any one of the terminal units V1 to V4 to a predetermined DC voltage and outputs the voltage. A resistor R0 is connected to the output terminal of the power supply unit 15 for adjustment. A series circuit of resistors R3 and R4, a series circuit of resistors R3 and R5, a series circuit of resistors R3 and R6 are connected to the resistor R0, A series circuit of resistors R3 and R7 is connected in parallel. The resistance values of the resistors R4 to R7 are different from each other.

  Switching elements Q3 to Q6 made of, for example, FETs are connected in parallel to the resistors R4 to R7, respectively. These switching elements Q <b> 3 to Q <b> 6 are each configured to be switched on / off by the voltage divided by the series resistance circuit 16. For example, when the contact portion 2B and the terminal portion V1 are connected, the switching element Q3 is turned on, and the other switching elements Q4 to Q6 are kept off.

  A connection point between the resistor R0 and each series circuit connected in parallel to the resistor R0 is connected to the output adjustment terminal 12A of the output variable unit 12. Therefore, a voltage obtained by dividing the output voltage of the adjustment power supply unit 15 by the resistor R0 and the series circuit connected in parallel is input to the output adjustment terminal 12A. The output variable unit 12 is configured to output a predetermined DC voltage according to the voltage value input to the output adjustment terminal 12A.

  Here, when the combined resistance of each series circuit connected in parallel to the resistor R0 is Z1, the combined resistor Z1 has a resistance value that varies according to the on / off of the switching elements Q3 to Q7. For example, when the switching element Q3 is on, the connection point between the resistor R3 and the resistor R4 is connected to the grounding terminal portion G1 via the switching element Q3, so that the combined resistance is equal to the resistance value of the resistor R4. The resistance value of Z1 varies. Similarly, when the switching element Q4 is on, when the switching element Q5 is on, and when the switching element Q6 is on, the resistance value of the combined resistor Z1 varies by the resistance values of the resistors R5, R6, and R7, respectively. . That is, the resistance value of the combined resistor Z1 is different from each other depending on which of the terminal portions V1 to V4 the power contact point 2B is connected to, so that the input voltage of the output adjustment terminal 12A is also different from each other. It becomes a voltage value.

  Therefore, the output voltage of the output variable section 12 varies depending on which terminal section V1 to V4 is connected to the power supply contact section 2B. For this reason, the light output of the light source 1 can be switched by switching to which of the terminal portions V1 to V4 the contact portion 2B for feeding is connected.

  In the present embodiment, when the light source 1 is installed, by changing the mounting angle of the light source 1 with respect to the contact portions 2A and 2B, the power supply terminal portions V1 to V4 that are connection terminals on the light source 1 side and the lighting device 2 side It is possible to switch the connection with the contact point 2B for power feeding, which is the connection terminal. For example, the light source 1 is rotated 90 degrees counterclockwise with reference to a state (rotation angle 0 degree) where the contact point 2A for grounding and the terminal part G1 are connected and the contact part 2B for power supply and the terminal part V1 are connected. When the rotation is performed, the contact portion 2B for power feeding and the terminal portion V2 are connected. Similarly, when the light source 1 is rotated 180 degrees counterclockwise from the reference position, the power supply contact 2B and the terminal V3 are connected, and when the light source 1 is rotated 270 degrees counterclockwise from the reference position, The contact portion 2B for power feeding and the terminal portion V4 are connected.

  As described above, in the present embodiment, the connection between the power feeding terminal portions V1 to V4 and the power feeding contact portion 2B can be switched by rotating the light source 1 around the grounding terminal portion G1. Therefore, since the power supply path for supplying power to the light source 1 can be changed simply by rotating the light source 1, the light output of the light source 1 can be easily changed. For example, as shown in FIG. 4 (d), when three light sources 1 are installed in parallel in the horizontal direction in the figure, the light source A1 of the reference (rotation angle is 0 degree) is the center, and on both sides thereof. A light source A2 rotated by 90 degrees is arranged. By arranging the light sources A1 and A2 in this way, the light outputs of the light source A1 and the light source A2 can be made different from each other. For example, the light output of the light source A2 at the end is compared with the light output of the light source A1 at the center. The light distribution can be easily changed, for example, by increasing the size.

  As shown in FIG. 4 (e), when nine light sources 1 are installed in the form of 3 rows × 3 columns, the reference light source A1 is the center, and it is rotated 90 degrees on both the upper, lower, left and right sides in the figure. The light source A2 is arranged, and the light source A3 rotated 180 degrees is arranged at the four corners on the diagonal line. By arranging the light sources A1 to A3 in this way, the light distribution can be easily changed, for example, the light outputs of the light sources A2 and A3 are made larger than the light output of the light source A1 as the distance from the light source A1 increases.

  In the present embodiment, the case 11 of the light source 1 is formed in a square shape in plan view, but may be formed in a polygonal shape such as a triangular shape in plan view or a pentagonal shape. In this case, the number of terminal portions may be changed according to the number of corner portions of the case 11. For example, if the case 11 has a triangular shape in plan view, three terminal portions V1 to V3 may be disposed around one grounding terminal portion G1.

  By the way, as shown in FIG. 5A, one grounding terminal G1 and three power feeding terminals V1 to V3 are provided on the light source 1 side, and one grounding terminal is provided on the lighting device 2 side. You may comprise so that 2 A of contact parts and the terminal parts 2B and 2C for electric power feeding may be provided. That is, the number of connection terminals on the light source 1 side is reduced from the four pairs of terminal portions to three pairs of terminal portions, and instead the number of connection terminals on the lighting device 2 side is increased from the one pair of contact portions to two pairs of contact portions. ing.

  In this configuration, by changing the mounting angle of the light source 1 with respect to the contact portions 2A and 2B when the light source 1 is installed, the power supply terminal portions V1 to V3 which are connection terminals on the light source 1 side and the lighting device 2 side are provided. The connection with the contact portions 2B and 2C for feeding that are connection terminals can be switched. For example, the contact point 2A for grounding and the terminal part G1 are connected, and the light source 1 is rotated 90 degrees clockwise with reference to the state where the contact parts 2B, 2C for power supply and the terminal parts V1, V2 are connected. The contact portions 2B and 2C for power feeding and the terminal portions V2 and V3 are connected. Similarly, when the light source 1 is rotated 180 degrees clockwise from the reference position, the power supply contact 2B and the terminal V3 are connected, and when the light source 1 is rotated 270 degrees clockwise from the reference position, the power supply The contact portion 2C and the terminal portion V1 are connected.

  Hereinafter, an example of a specific circuit configuration of the circuit constituting the power supply path built in the light source 1 in the case of the above configuration is shown in FIG. However, since the basic configuration of the circuit shown in FIG. 5B is common to the circuit configuration shown in FIG. 4C, common portions are denoted by the same reference numerals and description thereof is omitted. In FIG. 5B, series resistance circuits 16 are respectively connected between the power supply terminal portions V1 and V2 and the ground terminal portion G1. In addition, a series circuit of resistors R3 and R4 and a series circuit of resistors R3 and R5 are connected in parallel to the resistor R0, the connection point between the resistors R3 and R4, and the resistors R3 and R5. Switching elements Q3 and Q4 are connected to the connection point, respectively. Note that the series resistance circuit 16 is not connected to the terminal portion V3, and the series circuit of resistors R3 and R6 as shown in FIG. 4C and the switching element Q5 are not connected.

  Here, when the combined resistance of each series circuit connected in parallel to the resistor R0 is Z2, the combined resistor Z2 has a resistance value that varies according to the on / off state of the switching elements Q3 and Q4. For example, the resistance values of the resistors R0, R3, R4, and R5 are 1 kΩ, 1 kΩ, 1 kΩ, and 10 kΩ, respectively, and the output voltage of the adjustment power supply unit 15 is 13V. In this case, as shown in FIG. 5C, when the switching elements Q3 and Q4 are all on, when both are off, and when only one of them is on, the resistance value of the combined resistor Z2 is different from each other. It becomes size. Therefore, the input voltage of the output adjustment terminal 12A also has a different magnitude in each case.

  That is, by rotating the light source 1 around the terminal portion G1 and switching the connection between the terminal portions V1 to V3 and the contact portions 2B and 2C, the output adjustment is performed by switching the switching elements Q3 and Q4 on and off. The magnitude of the input voltage at the terminal 12A can be changed. Here, the magnitude of the input voltage of the output adjustment terminal 12A can be changed to the same four patterns as in the above embodiment, although the number of terminal portions on the light source 1 side is reduced. Therefore, in the above configuration, since the terminal portion on the light source 1 side can be reduced, the number of parts of the circuit constituting the power supply path built in the light source 1 can be reduced. As a result, the light source 1 can be reduced in size and Thinning can be achieved.

  Further, as shown in FIG. 6, one grounding terminal portion G1 and one power feeding terminal portion V1 are provided on the light source 1 side, and one grounding contact portion 2A is provided on the lighting device 2 side. You may comprise so that the four contact parts 2B-2E for electric power feeding may be provided. That is, a configuration in which a pair of connection terminals are provided on the light source 1 side and a plurality of pairs (four pairs in the figure) of the connection terminals are provided on the lighting device 2 side may be employed. Even in this case, it is possible to achieve the same effect as when a plurality of pairs of connection terminals are provided on the light source 1 side. In addition, as a structure of the lighting device 2 in this case, for example, as shown in FIG. 6, DC power sources DC1 to DC4 that output different DC voltages are provided therein, and each DC power source DC1 to DC4 is supplied with power. A configuration in which the contact portions 2B to 2E are connected is conceivable. That is, any configuration may be used as long as different DC power is supplied to the contact portions 2B to 2E for power feeding.

(Embodiment 4)
Hereinafter, Embodiment 4 of the illuminating device which concerns on this invention is described using drawing. However, since the basic configuration of the present embodiment is common to that of the first embodiment, common portions are denoted by the same reference numerals and description thereof is omitted. In the description of the present embodiment, the up / down / left / right direction and the front / rear direction are defined by arrows shown in FIG. In the present embodiment, as shown in FIGS. 7A to 7C, the light source 1 is formed by stacking a plurality of (four in the drawing) square light emitting panels 1 </ b> A to 1 </ b> D along the front-rear direction. Housed in the case 11. In the case 11, a plurality of pairs (four pairs in the drawing) of power supply rails 40 to 47 are arranged along the four sides of the light emitting panel 1A. Each of the light emitting panels 1A to 1D has the same configuration as the light emitting panel 10 of the first embodiment.

  Each of the power supply rails 40 to 47 is formed of a plate-like conductive member that is long along the front-rear direction. As shown in FIG. 7 (a), at the right end of the light emitting panel 1A, the power supply rails 40 and 44 disposed on both the upper and lower sides with the light emitting panel 1A interposed therebetween are a power supply terminal V1 and a grounding terminal, respectively. The terminal part G1 is configured. In addition, at the lower end of the light emitting panel 1A, the power supply rails 41 and 45 disposed on both the left and right sides of the light emitting panel 1A constitute a power supply terminal portion V2 and a grounding terminal portion G2, respectively. Further, at the left end portion of the light emitting panel, the power supply rails 42 and 46 disposed on both the upper and lower sides across the light emitting panel 1A constitute a power supply terminal portion V3 and a grounding terminal portion G3, respectively. In addition, at the upper end of the light emitting panel 1A, the power supply rails 43 and 47 disposed on both the left and right sides of the light emitting panel 1A constitute a power supply terminal portion V4 and a grounding terminal portion G4, respectively.

  Then, the lighting device 2 is connected by connecting the output terminal on the high voltage side and the output terminal on the ground side of the lighting device 2 to any pair of the terminal portions V1 to V4 for feeding and the terminal portions G1 to G4 for grounding. To at least one of the light-emitting panels 1A to 1D is supplied with lighting power to emit light. That is, the power supply terminal portions V1 to V4 and the grounding terminal portions G1 to G4 constitute a plurality of pairs (four pairs in this embodiment) of connection terminals on the light source 1 side, and output terminals on the high voltage side of the lighting device 2. The output terminals on the ground side constitute a pair of connection terminals on the lighting device 2 side. Further, depending on whether the high-voltage side output terminal and the ground-side output terminal of the lighting device 2 are connected to the power feeding terminal portions V1 to V4 and the grounding terminal portions G1 to G4, the light emitting panels 1A to 1A. The power supply path to 1D can be switched.

  Here, as shown in FIG. 7D, a pair of module terminals (not shown) of the light-emitting panel 1A is connected to the terminal portions V1 and G1 via the feeder line 100 as a reference (rotation). Angle 0). Then, each module terminal of the light emitting panel 1B is connected to the terminal portions V2 and G2 in a state where it is rotated 90 degrees clockwise from the reference position. Each module terminal of the light emitting panel 1C is connected to the terminal portions V3 and G3 in a state where the module terminal is rotated 180 degrees clockwise from the reference position. Each module terminal of the light emitting panel 1D is connected to the terminal portions V4 and G4 in a state of being rotated 270 degrees clockwise from the reference position. That is, by rotating the light emitting panels 1A to 1D, it is possible to switch between the pair of power supply terminal portions V1 to V4 and the ground terminal portions G1 to G4.

  As described above, in the present embodiment, the power supply path for supplying power to the light source 1 can be changed simply by switching the connection between the connection terminal on the light source 1 side and the connection terminal on the lighting device 2 side. Similar effects can be achieved. For example, as shown in FIG. 7 (e), if the output terminal on the high voltage side and the output terminal on the ground side of the lighting device 2 are connected to a pair of the terminal portion V1 for power supply and the terminal portion G1 for grounding, light is emitted. It is possible to emit light by supplying lighting power to the panel 1A. At this time, if the light emission colors of the light emitting panels 1A to 1D are different from each other, the light emission of the light source 1 can be performed by switching which connection terminal on the lighting device 2 side is connected to which connection terminal on the light source 1 side. The color can be switched.

  By the way, in this embodiment, as shown in FIG.7 (d), one light emission panel 1A-1D is connected to each pair of terminal part V1-V4 for electric power feeding and terminal part G1-G4 for earthing | grounding. However, the number of the light emitting panels 1A to 1D connected to each pair is not limited to one. For example, a configuration in which two light emitting panels 1A and 1B are connected to a pair of a power supply terminal portion V1 and a ground terminal portion G1 may be used. In order to change to this configuration, it is only necessary to rotate the light-emitting panel 1B by 90 degrees counterclockwise. Therefore, it is possible to easily change the number of the light emitting panels 1A to 1D that are desired to emit light only by rotating the light emitting panels 1A to 1D.

  In addition, in this embodiment, although each light emission panel 1A-1D is formed in square shape, you may form in polygonal shapes, such as a triangle shape and a pentagon shape, for example. In this case, what is necessary is just to change the number of terminal parts according to the number of sides of each light emission panel 1A-1D. For example, if each of the light emitting panels 1A to 1D has a triangular shape, three pairs of terminal portions including power supply terminal portions V1 to V3 and grounding terminal portions G1 to G3 using six power supply rails 40 to 45 are provided. What is necessary is just to provide.

(Embodiment 5)
Hereinafter, Embodiment 5 of the lighting device according to the present invention will be described with reference to the drawings. However, since the basic configuration of the present embodiment is common to that of the second embodiment, common portions are denoted by the same reference numerals and description thereof is omitted. As shown in FIGS. 8A and 8B, this embodiment is characterized in that a slide-type change-over switch SW1 is provided on one surface of the case 11 of the light source 1.

  As shown in FIG. 8B, the light source 1 has a power supply terminal V0 connected to a high-voltage side output terminal of a lighting device (not shown) and a ground connected to a ground-side output terminal. Terminal portion G0 is provided. Further, the light source 1 is further provided with three terminal portions V1 to V3 for feeding, and the connection between any one of the terminal portions V1 to V3 and the terminal portion V0 for feeding is switched. For example, a changeover switch SW1 is used. In other words, a plurality of pairs (three pairs in the present embodiment) of the connection terminals on the light source 1 side include a pair of terminal portions V1, G0, a pair of terminal portions V2, G0, and a pair of terminal portions V3, G0. It is composed. Further, the output terminal on the high voltage side and the output terminal on the ground side of the lighting device constitute a connection terminal on the lighting device side.

  As shown in FIG. 8A, the changeover switch SW1 is disposed in a rectangular through hole 11B provided on one surface of the case 11, and is slidable in the left-right direction in FIG. A contact point (not shown) is provided on the back surface of the changeover switch SW1 to alternatively electrically connect the power feeding terminal portion V0 and any one of the power feeding terminal portions V1 to V3. . Therefore, when the changeover switch SW1 is slid to the left in the figure, the power supply terminal portions V0 and V1 are electrically connected, and when slid to the center in the figure, the power supply terminal portions V0 and V2 are electrically connected. Is done. Further, when the changeover switch SW1 is slid to the right side in the figure, the power supply terminal portions V0 and V3 are electrically connected.

  The changeover switch SW1 and the through hole 11B are desirable because they can be provided with a large light emitting surface by being provided on a surface other than the light emitting surface of the case 11. The changeover switch SW1 need not be limited to the slide type, and may be, for example, a rotary type.

  Hereinafter, a circuit constituting a power supply path built in the light source 1 will be described with reference to the drawings. Inside the light source 1, as shown in FIG. 8B, an output variable unit 12 is provided between the terminal units V <b> 1 to V <b> 3 and the light emitting panel 10. In the light source 1, an output control unit 14 is connected to the terminal units V2 and V3 and controls the output voltage of the output variable unit 12 depending on which of the terminal units V2 and V3 is connected. Is provided. Further, a backflow preventing diode D3 is inserted between each of the terminal portions V2, V3 and the output variable portion 12.

  The output control unit 14 is provided with two input terminals 14A and 14B corresponding to the terminal units V2 and V3, and the output control unit 14 determines which input terminals 14A and 14B the voltage is applied to. Accordingly, the output voltage of the output variable section 12 is controlled so as to have different levels. That is, in this embodiment, the path through the terminal unit V1 and the output variable unit 12, the path through the terminal unit V2 and the output variable unit 12, and the path through the terminal unit V3 and the output variable unit 12 are supplied with power. The route is configured. For this reason, the power supply path can be switched by sliding the changeover switch SW1 to switch which of the terminal portions V1 to V3 is connected to the terminal portion V0.

  As described above, in the present embodiment, the power supply path for supplying power to the light source 1 can be changed by switching the connection between the connection terminal on the light source 1 side and the connection terminal on the lighting device 2 side. Similar effects can be achieved. In particular, in the present embodiment, the power supply path can be easily changed by simply sliding the changeover switch SW1.

  By the way, one power supply terminal portion V0 may be provided on the light source 1 side, and three power supply terminal portions V1 to V3 may be provided on the lighting device 2 side. That is, a configuration in which a pair of connection terminals are provided on the light source 1 side and a plurality of pairs (three pairs in the figure) of connection terminals are provided on the lighting device 2 side may be employed. Even in this case, it is possible to achieve the same effect as when a plurality of pairs of connection terminals are provided on the light source 1 side. In addition, as a structure of the lighting device 2 in this case, for example, as shown in FIG. 8C, DC power sources DC1 to DC3 that output different DC voltages are provided therein, and the DC power sources DC1 to DC3 are respectively provided. A configuration in which the power supply terminal portions V1 to V3 are connected is conceivable. In other words, any DC power different from each other may be supplied to the power supply terminal portions V1 to V3.

  Hereinafter, embodiments of a lighting apparatus according to the present invention will be briefly described. In the description of the present embodiment, the left and right sides in FIG. In the present embodiment, as shown in FIGS. 9A and 9B, the light source 1 having a plurality of (three in the present embodiment) light emitting panels 1 </ b> A to 1 </ b> C, and lighting for supplying lighting power to the light source 1. A lighting device comprising a device (not shown). In addition, as an illuminating device of this embodiment, you may employ | adopt any of said each embodiment.

  The light source 1 is configured by connecting three cases 11 each housing the light emitting panels 1A to 1C. Between adjacent cases 11, there are provided hinge portions 6 that allow the light emitting panels 1B and 1C to tilt forward relative to the light emitting panel 1A. Further, a support member (not shown) is provided on the back surface of the light source 1 so as to be capable of rotating in the depression direction, and the support member has a hook portion 5 that is hooked on the attachment target of the lighting fixture. Is provided.

  The hook portion 5 extends between the light source 1 and the circuit housing portion 50 in which a circuit constituting the lighting device is housed, and the rear portion of the circuit housing portion 50 and the support member. And a plate-like sandwiching portion 51 that sandwiches the attachment target. Therefore, for example, the present embodiment can be attached by sandwiching a headboard of a bed to which a lighting fixture is attached, a partition used in an office or the like between the support member and the sandwiching portion 51.

  As described above, in this embodiment, it is possible to realize a lighting fixture including any one of the lighting devices in the above embodiments. In addition, it is not necessary to limit to this embodiment as a lighting fixture, What is necessary is just to be able to employ | adopt any illuminating device in said each embodiment.

  By the way, as control of the light output of the light emission panel which uses the arrange | positioned organic EL element as a light-emitting body, the control which enlarges the applied voltage or electric current is considered, for example with the light emission panel with few adjacent light emission panels. . In a light-emitting panel having a small number of adjacent light-emitting panels, it is difficult to receive heat from the surroundings, so that the temperature becomes low and the light output decreases. This is because the impedance of the organic EL element has a negative characteristic with respect to temperature. Therefore, by controlling as described above, it is possible to correct a decrease in light output of a light emitting panel having a small number of adjacent light emitting panels, and uniformize the light output as a whole. Further, a light-emitting panel with a small number of adjacent light-emitting panels looks dark because there is little overlap of light from other light-emitting panels. Therefore, by controlling as described above, it is possible to brighten a light-emitting panel having a small number of adjacent light-emitting panels and to uniformize the light output as a whole.

  On the other hand, a light-emitting panel with a large number of adjacent light-emitting panels tends to receive heat from the surroundings, and thus tends to have a high temperature, a rapid deterioration, and a short life. Therefore, it is conceivable to control the applied voltage or current to be smaller for a light emitting panel having a larger number of adjacent light emitting panels. By controlling in this way, the progress of deterioration of the light-emitting panel having a large number of adjacent light-emitting panels can be delayed, and the lifetime of the entire light source as a product can be extended.

  By the way, contrary to the above, the control which enlarges the applied voltage or electric current as the light emission panel with many adjacent light emission panels is also considered. When controlling in this way, it is possible to increase the light output at the center of the light source where the number of adjacent light-emitting panels increases, so that a narrow range should be illuminated intensively or the light sharpened. Can do.

1 Light source 2 Lighting device 3 Feed rail (connection terminal)

Claims (4)

One or more light sources, a lighting device that supplies power necessary for lighting to the light sources, and one or more pairs of connection terminals that are respectively provided in the light source and the lighting device to electrically connect each other. And at least one of the light source or the lighting device includes a plurality of pairs of the connection terminals, and a plurality of power supply paths for supplying power to the light source between the light source and the lighting device. Is provided, and is configured to switch the power supply path by switching the connection between the connection terminal on the light source side and the connection terminal on the lighting device side,
The light source is configured to switch the connection between the connection terminal on the light source side and the connection terminal on the lighting device side by changing an attachment angle with respect to the connection terminal on the lighting device side,
The light source is a surface light source that emits surface light, and a plurality of pairs of connection terminals of either the light source or the lighting device are connected to one output terminal on a high voltage side of the lighting device. A terminal and one ground connection terminal connected to an output terminal on the ground side of the lighting device, and the other connection terminal of the light source or the lighting device is arranged when the light source is installed. The other ground connection terminal disposed at the center of the light source and connected to the one ground connection terminal is spaced apart from the other ground connection terminal by a predetermined distance along the circumferential direction. A plurality of power supply connection terminals connected to the one power supply connection terminal and rotating the light source around the other ground connection terminal. Connection terminal for power supply and other Illumination device and switches the connection between the connection terminals for power supply. The lighting device according to claim 1 , wherein the light source is provided with a changeover switch that switches connection between the connection terminal on the light source side and the connection terminal on the lighting device side . The lighting device according to claim 1 , wherein the light source includes an organic electroluminescence element . A lighting fixture comprising the lighting device according to any one of claims 1 to 3 .

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