JP5745354B2 - Light source and light source device including the same - Google Patents

Description

  The present invention relates to a light source using a planar light emitting panel and a light source device including the light source.

  Conventionally, various light source devices using a planar light emitting panel have been developed (see, for example, Patent Document 1). In such a light source device, a plurality of light sources are connected and used to widen the light emitting area.

  In the light source device described in Patent Document 1, a pair of contacts is provided on each side of a square flat panel light emitting unit. That is, the flat panel light emitting unit is provided with four pairs of contacts. One of the pair of contacts is connected to one end of an organic light emitting diode (OLED), and the other is connected to the other end of the organic light emitting diode. Thereby, an organic light emitting diode can be light-emitted with the direct-current power supplied to an organic light emitting diode through a pair of contact from the outside.

Special table 2007-536708 gazette

  However, in the conventional light source device described in Patent Document 1, it is difficult for the installer to distinguish which of the pair of contacts is the positive electrode or the negative electrode. For this reason, when two flat panel light emission units are connected, the positive electrode of one flat panel light emission unit and the negative electrode of the other flat panel light emission unit may be connected accidentally.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a light source and a light source device that can prevent a positive electrode and a negative electrode from being erroneously connected when connected to another object. It is in.

  The light source of the present invention includes a planar light emitting panel that emits light in a planar shape when DC power is supplied, and a light extraction unit that extracts light from the light emitting surface of the planar light emitting panel, and the planar light emitting panel is accommodated. A first notch portion provided with a positive electrode for supplying power to the planar light emitting panel is formed at an end of the first surface of the case. On the second surface, a second notch portion provided with a negative electrode for supplying power to the planar light emitting panel is formed at an end, and the first notch portion and the second notch portion are The shape is different when viewed from the thickness direction of the case.

  In this light source, the case has a rectangular shape when viewed from the thickness direction of the case, and the width between the outer peripheral line along one direction in the plane and the outer peripheral line of the light extraction portion is, The width of the first cutout portion is greater than the width between the outer peripheral line along the direction orthogonal to the one direction and the outer peripheral line of the light extraction portion, and the first cutout portion extends along the one direction of the first surface. It is preferable that the second cutout portion is formed at an end portion of the second surface along the one direction.

  In this light source, the first notch is formed at each of all corners of the first surface of the case so as to open in two directions in the plane, and the second notch is It is preferable that each of all corners of the second surface of the case is formed so as to open in two directions within the surface.

  In this light source, it is preferable that at least one of the first notch and the second notch is provided with a protrusion protruding from the bottom surface.

  In this light source, the planar light-emitting panel is dimmable, and a signal of a control signal for controlling a lighting state of the planar light-emitting panel is provided in the first cutout portion or the second cutout portion. Preferably a line is provided.

  The light source device according to the present invention includes a plurality of the light sources, and a plurality of first light sources that correspond to the first cutout portions of the plurality of light sources in a one-to-one correspondence with each of the first cutout portions. A first connecting member having a fitting portion, and a plurality of second fittings that correspond to the second notch portions of the plurality of light sources in a one-to-one correspondence with each corresponding second notch portion. And a second connecting member having a portion, wherein the first connecting member and the second connecting member have different shapes.

  In this light source device, the number of the first fitting portions and the number of the second fitting portions are two, and the two first fitting portions are provided so that their thickness directions intersect with each other. The two second fitting portions are preferably provided so that their thickness directions intersect each other.

  In the present invention, the first cutout portion provided with the positive electrode and the second cutout portion provided with the negative electrode have different shapes when viewed from the thickness direction of the case. This can prevent the positive electrode and the negative electrode from being erroneously connected when connected to other objects (including other light sources).

FIG. 2 is a light source according to the first embodiment, where (a) is an external view showing the whole, (b) is a partially enlarged view on the front surface side, and (c) is a partially enlarged view on the back surface side. It is a 1st connection member which concerns on the same as the above, Comprising: (a) is an external view on the surface side, (b) is an external view on the back side. It is the 2nd connection member which concerns on the same as the above, Comprising: (a) is an external view on the surface side, (b) is an external view on the back side. It is an external view in the state where the several light source which concerns on the same as the above was connected. It is a light source which concerns on the same as the above, Comprising: (a) is a figure which shows the electrical connection of a single item, (b) is a figure which shows the electrical connection at the time of a connection. It is an external view of an example of the lighting fixture which concerns on the same as the above. It is an external view of the modification of the lighting fixture which concerns on the same as the above. It is the 1st connection member concerning Embodiment 2, Comprising: (a) is an external view on the surface side, (b) is an external view on the back side. It is the 2nd connection member which concerns on the same as the above, Comprising: (a) is an external view on the surface side, (b) is an external view on the back side. It is the light source and 1st connection member which concern on the same as the above, Comprising: (a) is an external view on the surface side, (b) is an external view on the back side. It is an external view of an example of the lighting fixture which concerns on the same as the above. It is the some light source which concerns on Embodiment 3, Comprising: (a) is an external view before a connection, (b) is an external view of the connected state.

  In the following first to third embodiments, a light source and a light source device (lighting fixture) using a planar light emitting panel will be described.

(Embodiment 1)
As shown in FIG. 1, the light source 1 according to Embodiment 1 includes a planar light emitting panel 2 that emits light in a planar shape, and a plate-like case 3 in which the planar light emitting panel 2 is accommodated. The light source 1 of the present embodiment is used together with a first connection member 6 (see FIG. 2) and a second connection member 7 (see FIG. 3) described later.

  The planar light emitting panel 2 has, for example, an organic light emitting diode 21 (see FIG. 5) as a main component, and is formed in a quadrangular shape (square in the illustrated example). In the planar light emitting panel 2, the organic light emitting diode 21 emits light in a planar shape when DC power is supplied.

  The case 3 is a member formed of, for example, an insulating resin, and is a plate-like component in which the planar light emitting panel 2 is accommodated. The shape of the case 3 is a square when viewed from the thickness direction of the case 3 (Z-axis direction in FIG. 1). In the case 3, holding members 4 and 4 for holding the planar light emitting panel 2 are accommodated together with the planar light emitting panel 2.

  An opening 32 is formed at the center of the surface (first surface) 31 of the case 3 as a light extraction portion for extracting light from the light emitting surface 22 of the planar light emitting panel 2. The opening 32 is formed so as to expose the light emitting surface 22 of the planar light emitting panel 2 in a state where the planar light emitting panel 2 is housed in the case 3.

  Further, a plurality of (four in the illustrated example) first cutout portions (first recesses) 33, 33,... Are formed at the end portion of the surface 31 of the case 3. On the bottom surface 331 of the first notch 33, a positive electrode 51 made of a conductor and a pair of signal lines 52, 52 made of a conductor are provided. The positive electrode 51 is an electrode for supplying power to the planar light emitting panel 2. A control signal for controlling light from the planar light emitting panel 2 passes through the pair of signal lines 52 and 52. Further, the first cutout 33 is provided with a first protrusion 34 protruding from the bottom surface 331 integrally with the bottom surface 331. The 1st protrusion part 34 is formed in the column shape. A first connecting member 6 (see FIG. 2) described later is fitted into the first cutout portion 33.

  On the other hand, a plurality of (four in the illustrated example) second notch portions (second recesses) 36, 36,... Are formed at the end portion on the back surface (second surface) 35 of the case 3. Yes. A negative electrode 53 made of a conductor is provided on the bottom surface 361 of the second notch 36. The negative electrode 53 is an electrode for supplying power to the planar light emitting panel 2. Further, the second cutout portion 36 is provided with a second protruding portion 37 protruding from the bottom surface 361 so as to be integrated with the bottom surface 361. The 2nd protrusion part 37 is formed in the column shape. A second connection member 7 (see FIG. 3) described later is fitted into the second notch 36.

  The first notch 33 and the second notch 36 are different in shape when viewed from the thickness direction of the case 3 (Z-axis direction in FIG. 1). Specific shapes will be described below.

  As shown in FIG. 1B, the wall surface 332 of the first notch 33 has a curved surface portion 335 between the flat surface portion 333 and the flat surface portion 334. That is, the first notch 33 when viewed from the thickness direction of the case 3 has a curve between two straight lines. The first cutout portion 33 has a size and a shape such that the second connection member 7 cannot be attached to the first cutout portion 33.

  On the other hand, as shown in FIG. 1C, the wall surface 362 of the second notch 36 has a plane portion 365 between the two plane portions 363 and 364. That is, the second notch 36 when viewed from the thickness direction of the case 3 has a straight line between two straight lines. The second cutout portion 36 is sized and shaped so that the first connection member 6 cannot be attached to the second cutout portion 36.

  Thereby, it can prevent that the positive electrode 51 provided in the 1st notch part 33 and the negative electrode 53 provided in the 2nd notch part 36 of the other light source 1 are connected accidentally.

  By the way, in the case 3 of the present embodiment, the width W1 between the outer peripheral line of the case 3 and the outer peripheral line (edge) of the opening 32 along the Y-axis direction in FIG. It is wider than the width W2 between the outer peripheral line of the case 3 along and the outer peripheral line (edge) of the opening 32.

  In such a case 3, the first cutout portion 33 is formed at the end portion along the Y-axis direction of the front surface 31, and the second cutout portion 36 is formed at the end portion along the Y-axis direction of the back surface 35. Is formed.

  The first notch 33 is formed at each of all corners of the front surface 31 of the case 3 so as to open in the X-axis direction and the Y-axis direction, and the second notch 36 is formed on the back surface of the case 3. Each of the corner portions of 35 is formed so as to open in the X-axis direction and the Y-axis direction.

  The light source 1, the first connecting member (first joint part) 6, and the second connecting member (second joint part) 7 configured as described above constitute a light source device. That is, the light source device of this embodiment includes a plurality of light sources 1, 1, a first connection member 6, and a second connection member 7.

  As shown in FIG. 2, the first connection member 6 is a member formed in a plate shape by an insulating material such as a resin, for example, and a plurality (two in the illustrated example) of first fitting portions 61 and 61. Is integrated. A first hole 64 through which the first protrusion 34 (see FIG. 1) is inserted is formed in the first fitting portion 61 so as to penetrate from the front surface 62 to the back surface 63. The plurality of first fitting portions 61 and 61 correspond to the first cutout portions 33 of the plurality of light sources 1 and 1 on a one-to-one basis, and each fits into the corresponding first cutout portion 33.

  Further, a conductor 81 and a pair of conductors 82 and 82 are provided on the back surface 63 of the first connection member 6. The conductor 81 is electrically connected to the positive electrode 51 (see FIG. 1) provided in the first notch 33 of the plurality of light sources 1 and 1. As a result, the first connecting member 6 is formed with a part of the DC power feeding path. The pair of conductors 82 and 82 are electrically connected to a pair of signal lines 52 and 52 (see FIG. 1) provided in the first cutout portion 33 of the plurality of light sources 1 and 1 in a one-to-one relationship.

  As shown in FIG. 3, the second connection member 7 is a member formed in a plate shape by an insulating material such as a resin, for example, and a plurality of (two in the illustrated example) second fitting portions 71 and 71. Is integrated. The second connection member 7 has a shape different from that of the first connection member 6. A second hole 74 through which the second protrusion 37 (see FIG. 1) is inserted is formed in the second fitting portion 71 so as to penetrate from the front surface 72 to the back surface 73. The plurality of second fitting portions 71 and 71 correspond to the second cutout portions 36 of the plurality of light sources 1 and 1 on a one-to-one basis, and each fits into the corresponding second cutout portion 36.

  A conductor 83 is provided on the back surface 73 of the second connection member 7. The conductor 83 is electrically connected to the negative electrode 53 (see FIG. 1) provided in the second notch 36 of the plurality of light sources 1 and 1. As a result, the second connecting member 7 is formed with a part of the DC power feeding path.

  Next, a method for connecting the two light sources 1 and 1 according to the present embodiment will be described with reference to FIGS. First, the installer prepares two light sources 1 and 1 and arranges the two light sources 1 and 1 so that the surfaces 31 of the two light sources 1 and 1 are on the same side. On the surface 31, the first notches 33, 33 of the two light sources 1, 1 are adjacent to each other. On the back surface 35, the second notches 36, 36 of the two light sources 1, 1 are adjacent to each other. Thereafter, the installer fits the first connecting member 6 into the two adjacent first cutout portions 33 and 33. Subsequently, the second connecting member 7 is fitted into the two adjacent second notches 36 and 36. Thereby, as shown in FIG. 4, the installer can connect the two light sources 1 and 1.

  Next, electrical connection of the light source 1 will be described with reference to FIG. The light source 1 includes a first power line 91 connecting the plurality of positive electrodes 51, 51,... And a second power line 92 connecting the plurality of negative electrodes 53, 53,. The first power line 91 is connected to the anode side of the organic light emitting diode 21, and the second power line 92 is connected to the cathode side of the organic light emitting diode 21. The first power line 91 and the second power line 92 are housed in the case 3.

  Next, a case where a plurality of light sources 1, 1,... Are connected will be described with reference to FIG. The electrical connection of each light source 1 is as described above. The positive electrodes 51 and 51 of the adjacent light sources 1 and 1 are conducted by the first connection member 6 (see FIG. 2), and the negative electrodes 53 and 53 of the adjacent light sources 1 and 1 are connected to the second connection member 7 (FIG. 3). Conduct).

  By the way, the control part (not shown) which controls the light emission state of the planar light emission panel 2 of the light source 1 may be built in the case 3 for each light source 1 or may not be built in the case 3. . When the control unit is built in the case 3, individual control for each light source 1 is possible even when the plurality of light sources 1 are connected. On the other hand, if the control unit is not built in the case 3 and is provided separately from the plurality of light sources 1, the control unit cannot perform individual control for each light source 1, but only interlock control for the plurality of light sources 1. Is possible.

  Next, an example of the lighting fixture (lighting device) of this embodiment is shown in FIG. The luminaire shown in FIG. 6 has a configuration in which a central light source 1 and peripheral four light sources 1, 1,. Although not shown, adjacent light sources 1 and 1 are connected by a first connecting member 6 and a second connecting member 7.

  From the above description, in the present embodiment, the first cutout portion 33 provided with the positive electrode 51 and the second cutout portion 36 provided with the negative electrode 53 are arranged in the thickness direction of the case 3 (Z axis in FIG. 1). The shape when viewed from (direction) is different. Thereby, when the some light sources 1 and 1 are connected, it can prevent that the positive electrode 51 and the negative electrode 53 are connected accidentally.

  In the present embodiment, the width W1 between the outer peripheral line of the case 3 along the Y-axis direction in FIG. 1 and the outer peripheral line of the opening 32 is the outer peripheral line of the case 3 along the X-axis direction in FIG. And wider than the width W2 between the outer peripheral line of the opening 32. Each first notch 33 is formed at the end of the front surface 31 along the Y-axis direction, and each second notch 36 is formed at the end of the back surface 35 along the Y-axis direction. . Thereby, since the space for the 1st notch part 33 and the 2nd notch part 36 is unnecessary in the both ends of case 3 along the X-axis direction of FIG. 1, the planar light emission panel 2 in case 3 is unnecessary. The ratio can be increased.

  Further, in the present embodiment, the first notch 33 is formed in each of all the corners of the front surface 31 so as to open in the X-axis direction and the Y-axis direction of FIG. A second notch 36 is formed in each so as to open in the X-axis direction and the Y-axis direction. Thereby, the some light sources 1 and 1 can be connected freely.

  In the present embodiment, the first notch 33 is provided with a first protrusion 34, and the second notch 36 is provided with a second protrusion 37. Thereby, the strength of fitting between the first notch 33 and the first connecting member 6 and the strength of fitting between the second notched portion 36 and the second connecting member 7 can be increased.

  Further, in the present embodiment, signal lines 52 and 52 for control signals for controlling the lighting state of the planar light emitting panel 2 are provided in the first cutout portion 33. Thereby, a control signal can be transmitted between the plurality of light sources 1 and 1.

  In addition, as a modification of the lighting fixture using the light source 1 of this embodiment, there is a lighting fixture in which a plurality of light sources 1, 1,... Are connected as shown in FIG.

  Moreover, there exists a lighting fixture using only one light source 1 as another modification of the lighting fixture using the light source 1 of this embodiment. In this case, the first connection member 6 and the second connection member 7 are used for connecting the light source 1 and the attachment member for attaching the lighting fixture to the installation surface. The attachment member includes a power line connected to a commercial power source.

(Embodiment 2)
In the second embodiment, a light source device in which a plurality of light sources 1, 1,. In addition, since the light source 1 of this embodiment is the same as that of the light source 1 of Embodiment 1, detailed description is abbreviate | omitted.

  The first connecting member 6 of the present embodiment is a member having a shape as shown in FIG. Four first holes 64, 64,... Are formed in the first connection member 6 of the present embodiment. Two conductors 81, 81 and two pairs of conductors 82, 82,... Are provided on the back surface 63 of the first connection member 6. In addition, description is abbreviate | omitted about the function similar to the 1st connection member 6 (refer FIG. 2) of Embodiment 1. FIG.

  The 2nd connection member 7 of this embodiment is a member of a shape as shown in FIG. Four second holes 74, 74,... Are formed in the second connection member 7 of the present embodiment. Two conductors 83, 83 are provided on the back surface 73 of the second connection member 7. In addition, description is abbreviate | omitted about the function similar to the 2nd connection member 7 (refer FIG. 3) of Embodiment 1. FIG.

  The first connection member 6 and the second connection member 7 of the present embodiment can connect the four light sources 1 to each other. As shown in FIG. 10, the first protrusion 34 of the light source 1 is inserted into the first hole 64 of the first connection member 6, and the first fitting portion 61 of the first connection member 6 is the first. It fits into the notch 33. The second protrusion 37 of the light source 1 is inserted into the second hole 74 of the second connection member 7, and the second fitting portion 71 of the second connection member 7 is formed in the second notch 36. Mating. If this is also performed for the other light sources 1, the four light sources 1 can be connected by a pair of the first connection member 6 and the second connection member 7.

  An example of the lighting fixture of this embodiment is shown in FIG. The luminaire shown in FIG. 11 has a configuration in which 7 × 5 light sources 1, 1,. Although not shown, the adjacent four light sources 1, 1,... Are connected by the first connecting member 6 and the second connecting member 7.

  Also in this embodiment, it is possible to prevent the positive electrode 51 and the negative electrode 53 from being erroneously connected when the plurality of light sources 1, 1,.

(Embodiment 3)
In the third embodiment, a light source device in which a plurality (two in the illustrated example) of light sources 1 and 1 are three-dimensionally connected as shown in FIG. 12 will be described. In addition, since the light source 1 of this embodiment is the same as that of the light source 1 of Embodiment 1, detailed description is abbreviate | omitted.

  The first connecting member 6 of the present embodiment is integrally provided with a pair of first fitting portions 61 and 61. A pair of 1st fitting parts 61 and 61 are provided so that the thickness direction may mutually cross. In the example of FIG. 12, the pair of first fitting portions 61, 61 are provided at right angles. The pair of first fitting portions 61 and 61 are fitted in the first cutout portions 33 of the light sources 1 different from each other. In addition, description is abbreviate | omitted about the function similar to the 1st connection member 6 (refer FIG. 2) of Embodiment 1. FIG.

  The second connecting member 7 of the present embodiment is integrally provided with two pairs of second fitting portions 71, 71,. The main body 75 is formed in a columnar shape and abuts against the side surface of the case 3 of each of the plurality of light sources 1 and 1. A pair of 2nd fitting parts 71 and 71 are provided in the edge part of the longitudinal direction of the main-body part 75 so that the thickness direction may mutually cross | intersect. In the example of FIG. 12, the pair of second fitting portions 71 and 71 are provided at right angles. The pair of second fitting portions 71, 71 are fitted in the second cutout portions 36 of the light sources 1 different from each other. In addition, description is abbreviate | omitted about the function similar to the 2nd connection member 7 (refer FIG. 3) of Embodiment 1. FIG.

  From the above description, according to the present embodiment, the plurality of light sources 1 and 1 can be connected with the angle between the plurality of light sources 1 and 1 being less than 180 °. As shown in FIG. 12, two light sources 1 and 1 can be connected at right angles.

  As a modification of the present embodiment, the first connecting member 6 and the second connecting member 7 are the shaft 76 in FIG. 12B (the longitudinal axis of the main body 75 of the second connecting member 7). Alternatively, the two light sources 1 and 1 may be configured to be rotatable. Thereby, the opening of each light source 1,1 can be freely changed, and the direction (optical axis direction) of the light emitting surface 22 (see FIG. 1) of the planar light emitting panel 2 of each light source 1,1 can be freely changed. Can do.

  In each embodiment, the case 3 is a light transmissive member that transmits light from the light emitting surface 22 of the planar light emitting panel 2 as a light extraction unit that extracts light from the light emitting surface 22 of the planar light emitting panel 2. You may prepare. This translucent member can be provided integrally with the other part of the case 3, for example, by two-color molding.

  Moreover, in each embodiment, the 1st protrusion part 34 may be provided only in the 1st notch part 33, or the 2nd protrusion part 37 may be provided only in the 2nd notch part 36. Good.

  Furthermore, in each embodiment, the signal lines 52 and 52 for the control signal may be provided in the second notch 36 instead of the first notch 33.

  Further, in each embodiment, the shape of the case 3 may be a rectangle when viewed from the thickness direction of the case 3 (Z-axis direction in FIG. 1). That is, the shape of the case 3 may be a rectangle. Further, the shape of the case 3 may be a polygon other than a quadrangle such as a triangle or a pentagon.

DESCRIPTION OF SYMBOLS 1 Light source 2 Planar light emission panel 22 Light emission surface 3 Case 31 Surface (1st surface)
32 Opening (light extraction part)
33 First cutout portion 331 Bottom surface 34 First protrusion 35 Back surface (second surface)
36 2nd notch part 361 bottom face 37 2nd protrusion part 51 positive electrode 53 negative electrode 6 1st connection member 61 1st fitting part 7 2nd connection member 71 2nd fitting part

Claims (7)

A planar light-emitting panel that emits light in a planar shape when DC power is supplied;
A light extraction part for extracting light from the light emitting surface of the planar light emitting panel, and a plate-like case in which the planar light emitting panel is stored,
On the first surface of the case, a first cutout portion provided with a positive electrode for supplying power to the planar light emitting panel is formed at an end,
On the second surface of the case, a second cutout portion provided with a negative electrode for supplying power to the planar light emitting panel is formed at an end portion.
The light source, wherein the first cutout portion and the second cutout portion have different shapes when viewed from the thickness direction of the case. The case has a rectangular shape when viewed from the thickness direction of the case, and the width between the outer peripheral line along one direction in the plane and the outer peripheral line of the light extraction portion is one direction. It is wider than the width between the outer peripheral line along the orthogonal direction and the outer peripheral line of the light extraction part,
The first notch is formed at an end of the first surface along the one direction,
The light source according to claim 1, wherein the second notch is formed at an end of the second surface along the one direction. The first notch is formed at each of all corners of the first surface of the case so as to open in two directions within the surface,
The said 2nd notch part is formed in each of all the corner | angular parts of the said 2nd surface of the said case so that it may open in two directions within a surface. The Claim 1 or 2 characterized by the above-mentioned. light source.   The light source according to claim 1, wherein at least one of the first notch and the second notch is provided with a protrusion protruding from a bottom surface. The planar light emitting panel is dimmable,
The signal line of the control signal for controlling the lighting state of the said planar light emission panel is provided in the said 1st notch part or the said 2nd notch part of Claims 1-4 characterized by the above-mentioned. The light source according to any one of the above. While comprising a plurality of light sources according to any one of claims 1 to 5,
A first connecting member that has a plurality of first fitting portions that correspond to the first cutout portions of the plurality of light sources in a one-to-one correspondence with the respective first cutout portions;
A second connection member having a plurality of second fitting portions that correspond one-to-one with the second cutout portions of the plurality of light sources and that fit into the corresponding second cutout portions;
The light source device, wherein the first connecting member and the second connecting member have different shapes. The number of the first fitting parts and the number of the second fitting parts are two,
Two said 1st fitting parts are provided so that thickness directions may mutually cross,
The light source device according to claim 6, wherein the two second fitting portions are provided so that their thickness directions intersect with each other.

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