JP2012238502A - Light-emitting device, lighting device, and lighting fixture - Google Patents

Abstract

A light emitting device, a lighting device, and a lighting fixture capable of constituting an electrical connection means suitable for automation are provided.
A light emitting device includes a plurality of substrates and a connection member. The plurality of substrates 11 includes a solid light emitting element 12 and an electrode 13 that is electrically connected to the solid light emitting element. The concave part 14 is provided on at least one side, and the one side provided with the concave part is opposed to the fitting concave part. 16 is formed. The connection member 15 is at least partially fitted in the fitting recess, and electrically connects the electrodes of the adjacent substrates.
[Selection] Figure 1

Description

  Embodiments described herein relate generally to a light emitting device, a lighting device, and a lighting fixture that use a solid light emitting element such as a light emitting diode as a light source.

  In recent years, a light-emitting device using a light-emitting diode (hereinafter referred to as “LED”), which is a solid-state light-emitting element having a long life and low power consumption, instead of a filament bulb or a fluorescent lamp, and an LED using this light-emitting device Lighting devices such as lamps have been commercialized. In these lighting devices, lighting devices such as LED lamps and lamps having a straight tube shape that can be used instead of the straight tube fluorescent lamps widely used in indoor and outdoor lighting fixtures have been proposed and commercialized. ing.

JP 2011-023227 A

  These straight tube-shaped LED lamps have a total length of about 600 to 2400 mm, and a light emitting device constituting the light emitting module also requires a long substrate. In this substrate, a plurality of short substrates are formed in consideration of manufacturability and the like, and a plurality of substrates are connected in the longitudinal direction to form a long light emitting device.

  For this reason, since it is necessary to electrically connect a plurality of substrates, a configuration is generally adopted in which connectors are provided on the substrates and the connectors are connected by a wire harness. However, these wire harnesses and connectors must be connected manually, and this type of light-emitting device, lighting device, and lighting fixture that requires mass production has a problem that is unsuitable for automation.

  For this reason, how to configure an electrical connection means suitable for automation is an important issue. These problems are not limited to a straight tubular illumination device, but the same problem arises when a circular or square illumination device is configured.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a light-emitting device, a lighting device, and a lighting fixture that can constitute electrical connection means suitable for automation.

  The light emitting device in the embodiment includes a plurality of substrates and connection members. The plurality of substrates have a solid-state light emitting element and an electrode electrically connected to the solid-state light-emitting element, and are provided with a recess at least on one side, and a fitting recess is formed by facing one side provided with the recess. . At least a part of the connection member is fitted in the fitting recess, and the electrodes of the adjacent substrates are electrically connected.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the light-emitting device, the illuminating device, and the lighting fixture which can comprise the electrical connection means suitable for automation.

The light-emitting device which concerns on embodiment is shown, (a) is a perspective view which expands and shows the part which connects several board | substrates, (b) is a perspective view which reduces and shows the disassembled state. The light emitting device is also shown, (a) is an enlarged perspective view showing a connecting portion of a substrate, (b) is an enlarged perspective view showing a connecting member. The light emitting device is also shown, and (a) is a cross-sectional view taken along the line aa in FIG. 1 (a), and (b) is a cross-sectional view taken along the line bb in FIG. 1 (a). The perspective view which similarly shows the assembly procedure of the board | substrate and connection member of a light-emitting device. The perspective view which similarly shows the assembly procedure in the solder and screwing of a light-emitting device. FIG. 3 is a schematic electric circuit diagram of the light emitting device. Similarly, the 1st modification of a light-emitting device is shown, (a) is a perspective view of a connection member, (b) is sectional drawing equivalent to FIG.3 (b). Similarly, the 2nd modification of a light-emitting device is shown, (a) is a perspective view of a connection member, (b) is sectional drawing equivalent to FIG.3 (b). Similarly, a modification of the light emitting device is shown, (a) is a perspective view corresponding to FIG. 1 (a) showing a third modification, and (b) is equivalent to FIG. 1 (a) showing a fourth modification. A perspective view and (c) are sectional views of a crevice and an electrode portion showing the 5th modification. The illuminating device which concerns on embodiment is shown, (a) is a perspective view which decomposes | disassembles an illuminating device and shows a part, and (b) is an end elevation shown in the state which removed the nozzle | cap | die. The modification of an illuminating device is similarly shown, (a) is an end view showing the first modification with the base removed, and (b) is an end view showing the second modification with the base removed. . The lighting fixture which concerns on embodiment is shown, (a) is a front view, (b) is a side view. The modification of the illuminating device similarly used for a lighting fixture is shown, (a) is a top view which shows schematically the 3rd modification, (b) is a top view which shows schematically the 4th modification.

  Hereinafter, embodiments of a light emitting device, a lighting device, and a lighting fixture will be described with reference to the drawings.

  First, the light emitting device will be described. The light emitting device of this embodiment constitutes a light emitting module used for a straight tube type LED lamp having a total length of about 1200 mm corresponding to the current 40 W type straight tube fluorescent lamp. As shown in FIG. 10 includes a solid-state light emitting element 12 and a plurality of substrates 11 having electrodes 13 electrically connected to the solid-state light emitting elements, a connection member 15 that electrically connects each electrode 13 of an adjacent substrate, and the like.

  The substrate 11 constitutes a light source body, and is a member having good electrical insulation, in this embodiment, a flat and thin rectangular shape having a length of about 300 mm, a width of about 20 mm, and a thickness of about 1.6 mm. A circuit board made of glass epoxy resin is formed, and a wiring pattern (not shown) made of copper foil or the like is formed on the surface (upper surface in FIG. 1A), and a plurality of wiring patterns are formed on the wiring pattern. Solid light-emitting elements 12 are arranged in a substantially straight line at substantially equal intervals along an axis xx in the longitudinal direction of the substrate 11 so as to constitute a light-emitting portion.

  A pair of electrodes 13 is formed on the surface of the substrate 11 simultaneously with the formation of the wiring pattern, and a pair of recesses 14 is formed adjacent to the electrodes 13. In the present embodiment, as shown in FIG. 1B, four substrates 11 having the same configuration as described above are prepared, and each of the four substrates 11 has an axis x− in the longitudinal direction of the substrate. A long substrate connected along x and having a total length of about 1200 mm is formed. The substrate 11 may be made of ceramics, or may be made of a metal having good thermal conductivity, such as aluminum or copper, which has been electrically insulated with an epoxy resin or the like.

  In the present embodiment, the solid state light emitting device 12 is composed of a light emitting diode (hereinafter referred to as “LED”), and is composed of a plurality of SMD (Surface Mount Device) type LEDs. And connected in series. The solid state light emitting device is sealed with a resin containing a plurality of LED chips directly mounted on a substrate and a phosphor excited by light emitted from the LED chips, and white (day white, daylight, light bulb color). COB (Chip on Board) type configured to emit light.

  A total of four electrodes 13 are formed in pairs along the lateral sides 11 a and 11 a at both ends of the substrate 11. As shown in FIG. 2A, each electrode 13 has a predetermined distance dimension 11 from the sides 11a and 11a in the short direction, and also has a predetermined distance dimension 12 from the sides 11b and 11b in the longitudinal direction. Is formed. Each electrode 13 has the same shape and is formed at the same time as the wiring pattern is formed, so that it is made of copper foil or the like as in the wiring pattern and is electrically connected to each LED 12 together with the electric circuit formed by the wiring pattern. Configured to be connected to.

  The recess 14 is formed on one side along at least one side of the elongated rectangular substrate 11, in this embodiment, the sides 11 a and 11 a in the short direction at both ends of the substrate 11 in order to connect the four substrates 11. A total of 4 pairs are formed, and a total of 8 are formed on two sides. In the case of connecting only two substrates, a total of four pairs may be formed only on the short side of one end of the substrate, and the recesses may be formed on at least one side of the substrate. .

  In the present embodiment, each recess 14 is constituted by a groove cut vertically in a rectangular shape, and a pair is formed adjacent to both sides of each electrode 13. That is, as shown in FIG. 2A, the pair of grooves constituting the recess 14 has one end opened to the end surface 11a1 of the side 11a in the short direction of the substrate 11, and the other end is the side 11b in the longitudinal direction. Is formed so as to extend substantially parallel to the intermediate portion of the electrode 13.

  The recess 14 has a narrow opening width dimension w1 of the groove, a height dimension h1 cut slightly deeper than an intermediate portion of the thickness dimension of the substrate 11, and a length dimension l3 extending to the intermediate portion of the electrode 13. The dimension is approximately equal to the dimension l4 (l3≈l4). The concave portion 14 configured as described above is configured by a groove having the same shape and size with respect to a total of four electrodes 13 each having a similar configuration.

  As shown in FIG. 2B, the connecting member 15 is made of a conductive metal, which is a copper plate having a width dimension larger than the width dimension of the electrode 13 in this embodiment, and when connected, Each of the pair of electrodes 13 is a member that is electrically connected and connected to each other, and is configured such that a cross-sectional shape obtained by integrally bending a bowl-shaped leg portion 15a on both sides forms a substantially inverted U shape. The

  And the thickness dimension t1 of the leg part 15a is formed in the dimension which is equal to or slightly larger than the opening width dimension w1 of the groove | channel of the recessed part 14 (t1> = w1). The height dimension h2 of the leg 15a is formed shorter than the height dimension h1 of the groove constituting the recess 14 (h2 <h1). Further, the length dimension 15 of the connecting member 15 is the distance between the electrodes 13 adjacent to each other adjacent to each other when the plurality of substrates 11 are connected as shown in FIG. The dimension is smaller than the dimension l6 (l6 = l4 × 2) (l5 <l6), in other words, the dimension is smaller than twice the length dimension l3 of the recess 14 (l5 <l3 × 2).

  In the connection member 15 configured as described above, at least a part, in this embodiment, the leg portion 15a is fitted into the fitting recess 16 formed of a long groove (l3 + l3) in which two recesses 14 are continuous. . That is, as shown in FIG. 1A, when connecting a plurality of substrates 11, the sides 11a and 11a in the short direction of each substrate 11 are abutted. As a result, the openings of the grooves constituting the recesses 14 of the adjacent substrates 11 face each other and are matched to form a pair of fitting recesses 16 formed of continuous long grooves (l3 + l3).

  Then, both leg portions 15a of the connecting member 15 are inserted into the pair of fitting recesses 16 from above. In other words, both leg portions 15a of the connecting member 15 are inserted from above over the recesses 14 and 14 of the adjacent substrates 11. At this time, as shown in FIG. 1A, the center line yy of the connection member 15 is inserted so as to be aligned with the line zz of the joint of each substrate 11. Thus, both ends of the connection member 15 cover approximately half of the electrode 13, the inner surfaces of both ends of the connection member 15 are in contact with the surface of the electrode 13, and the electrodes 13 of each adjacent substrate 11 are made of a copper plate. It is electrically connected by the member 15.

  At this time, the length 15 of the connecting member 15, the thickness t 1 of the leg 15 a, the height h 2, the length of the groove 14 (13), and the length of the groove constituting the fitting recess 16. (13 + 13), the width dimension w1 and the height dimension h1 of the grooves constituting each recess 14 are configured so as to have a relationship of l5 <l3 + l3, t1 ≧ w1, h2 <h1, as described above. The leg portion 15 a of the member 15 is securely fitted in the fitting groove 16. In particular, the length 15 of the connection member 15 is twice the length 13 of the recess 14, that is, a length shorter than the length of the fitting recess 16 (l 5 <l 3 + l 3). A slight positional shift in the substrate axis xx direction with respect to the fitting recess 16 can be absorbed, and the connecting member 15 can be more reliably inserted into the fitting recess 16.

  Accordingly, the inner surface of the connection member 15 can be reliably brought into contact with the surface of the electrode 13, and the adjacent substrates 11 are reliably brought into contact with the sides 11 a and 11 a in the short direction by the connection member 15. Mechanical connection. At the same time, it is possible to reliably align the substrates 11 to be connected.

  Further, as described above, the dimension between the pair of electrodes 13 and the dimension between the pair of connecting members 15 need to ensure sufficient electrical insulation, so that the creepage distance and the spatial distance are 1 mm or more or 3 mm. Arrangement is made so as to ensure the above. In particular, as shown in FIG. 3 (a), the distance between the tip of the leg 15a of the connecting member 15 and the metal casing 17 to be described later is 1 mm or 3 mm or more so that the distance dimension a is 1 mm or more. The height dimension h2 of 15a is formed shorter than the height dimension h1 of the groove constituting the recess 14 (h2 <h1).

  As described above, the LED 12 and the electrode 13 that is electrically connected to the LED 12 are provided, and at least one side, in this embodiment, the concave portion 14 is provided in the short direction of both ends, and the one side provided with the concave portion is opposed to each other. A light emitting module comprising: a plurality of substrates 11 in which fitting recesses are formed; and a connecting member 15 that at least partially fits into the fitting recesses 16 and electrically connects the electrodes 13 of the adjacent substrates 11; That is, the light emitting device 10 is configured and attached to the housing 17 having thermal conductivity.

  The housing 17 also serves as a heat radiating member for radiating the heat generated when the LED 12 is turned on to the outside, and is a member having thermal conductivity, in this embodiment, by extrusion molding of aluminum with good thermal conductivity. It is configured in a thin and long shape extending in the longitudinal direction. In the present embodiment, the light emitting device 10 is formed with a length of about 1200 mm so that the four light emitting devices 10 described above can be installed. As shown in FIG. 1B, the housing 17 is formed so that the cross-sectional shape is formed of an arc portion 17a and a straight portion 17b, and the entire cross-sectional shape is substantially half-moon shaped with an arc-shaped bottom surface.

  The casing 17 has a long shape and extends along the longitudinal direction of the four light emitting devices 10 to act as a reinforcing material. Therefore, the strength of the thin and long light emitting device 10 can be increased. Become. Moreover, as shown to Fig.11 (a), you may comprise the housing | casing 17 in the shape of a hollow pipe for weight reduction, strength improvement, and material cost reduction. The casing 17 has four light emitting devices 10 along the longitudinal direction of the casing 17 through an insulating member 18 having electrical insulation on the surface side forming the straight portion 17b, and the light emitting device 10 and the casing. The respective longitudinal axes of the body 17 are placed in alignment.

  In this embodiment, the insulating member 18 is composed of a sheet or adhesive made of a silicone resin, an epoxy resin, or the like having electrical insulation and thermal conductivity, and each substrate 11 constituting the four light emitting devices 10 is insulated. It is fixed to the front surface side of the housing 17 by a fixing means S1 such as a screw from above through the member 18.

  Thus, the substrate 11 is attached to the casing 17 having electrical conductivity made of aluminum via the insulating member 18 having electrical insulation, and the insulating member 18 is interposed between the connection member 15 and the casing 17. It is possible to ensure sufficient electrical insulation between the substrate 11 and the housing 17, that is, between the electrode 13 and the connection member 15 and the housing 17. In the present embodiment, if sufficient electrical insulation can be ensured, the insulating member 18 is omitted, and the substrate 11 made of a resin having electrical insulation is provided directly on the housing 17. May be.

  Next, an assembly procedure of the light emitting device 10 configured as described above will be described with reference to FIGS. First, four light emitting devices 10 configured as described above and one casing 17 are prepared, and as shown by an arrow A in FIG. In addition, the insulating member 18 is mounted from above, and the four light emitting devices 10 connected from the upper side to the surface side of the insulating member 18 are sequentially mounted. At this time, the sides 11a, 11a in the short direction at both ends of the adjacent substrates 11 are abutted to each other so that the respective concave portions 14 are opposed to each other, and the respective concave portions 14 are continued to form the fitting concave portion 16.

  Next, as shown by an arrow B, the connection member 15 is transported and placed from above with respect to the fitting recess 16 so that both legs 15a are positioned. Next, the connecting member 15 is pressed from above, the both leg portions 15a are inserted into the fitting recesses 16, and the two adjacent substrates 11 are connected.

  Next, the remaining two substrates 11 are sequentially connected in the same manner as described above. As a result, the four substrates 11 are connected, and at the same time, the electrodes 13 of the four adjacent substrates 11 are electrically connected by the connection member 15 having conductivity. Further, the substrates 11 are aligned with each other.

  Next, in order to ensure electrical connection, as shown by an arrow C in FIG. 5, means such as soldering or spot welding from above to the surface of the connection member 15 and the surface of the electrode 13 are used. To perform welding Y. At this time, as described above, since the substrates 11 to be coupled are reliably aligned by the connecting member 15, it is possible to reliably perform soldering and the like from above on a predetermined position. As a result, the assemblability can be improved.

  Finally, as shown by an arrow C in FIG. 5, screws S <b> 1 are screwed from above and fixed to the casing 17 at about four locations on the surface side of each substrate 11 connected as described above. Thereby, the long light-emitting device 10 having a length of about 1200 mm including the housing 17 that also serves as a heat dissipation member is configured.

  As described above, when assembling the four light emitting devices 10 in the present embodiment, all the steps are performed in the operation direction from the upper side to the lower side. That is, the step of placing the insulating member 18 on the housing 17 (arrow A), the step of sequentially placing the four light emitting devices 10 on the insulating member 18 (arrow A), and the placement of the connection member 15 on the fitting recess 16. Step (arrow B), step of pressing connecting member 15 and inserting both leg portions 15a into fitting recess 16 (arrow B), soldering, spot welding, etc. to the surface of connecting member 15 and the surface of electrode 13 The step of welding by the means (arrow C) and the step of fixing each substrate 11 to the housing 17 by the screw S1 (arrow C) can all be performed in the operating direction from the upper side to the lower side. It can be automated by simple means. In other words, it is possible to configure an electrical connection means suitable for automation.

  In addition, as shown in the electrical circuit diagram of FIG. 6, the four light emitting devices 10 are connected so that each LED 12 is connected in series to one electric circuit R1, and the other electric circuit R1 is connected by the loop electric circuit L1. Connected to the electric circuit R2. The open ends of the electric circuits R1 and R2 serve as input terminals P1 and P1. One long light emitting device 10 configured as described above is used as a light source of an illuminating device that constitutes a straight tube LED lamp or the like.

  As described above, according to the present embodiment, it is possible to provide a light-emitting device capable of configuring an electrical connection means suitable for automation, and the capital investment can be suppressed to be lower than that of the conventional connector mounting method. The labor cost for the wiring work by the wire harness between the connectors can be reduced, and the manufacturing cost can be greatly reduced.

  In addition, the configuration includes a plurality of substrates together with an electrical connection by a simple configuration and operation in which the leg portion 15a of the connection member 15 is simply inserted into the fitting recess 16 formed by making each recess 14 face each other. Eleven mechanical connections and alignments can be made simultaneously. As a result, it is possible to omit components such as connectors and wire harnesses that occupy a large part of the manufacturing cost, thereby further reducing costs.

  Furthermore, since the connection member 15 is inserted into the fitting recess 16, the connection member 15 does not protrude from the surface of the substrate 11, and it is difficult to form a shadow of light. It is also possible to eliminate the gap between the substrates 11 to be connected, and the dark portion is prevented from being formed in the light emitting portion by the gap. Further, a connector or a wire harness for connection does not protrude outward from the substrate 11 as in the conventional case, and it is possible to provide a light emitting device that is good in appearance design and excellent in merchantability. .

  As described above, in the present embodiment, as illustrated in FIG. 7A, the connection member 15 may notch the intermediate portions of the pair of leg portions 15 a to form the notch portions 15 a 1. According to this configuration, as shown in FIG. 7B, the connection member 15 and the housing 17 at the joint portion formed between the short sides 11a and 11a of the substrates 11 to be connected. The space distance l7 can be sufficiently secured by the notch 15a1, and the light emitting device 10 with better electrical insulation can be configured.

  Further, as shown in FIG. 8A, the pair of leg portions 15a of the connecting member 15 may be formed of synthetic resin, and the connecting portion 15a2 connecting the pair of leg portions may be formed of a conductive metal such as a copper plate. Good. According to this configuration, as shown in FIG. 8B, the connection member 15 and the casing 17 at the joint portion formed between the short sides 11a and 11a of the substrates 11 to be connected. It is possible to secure a sufficient spatial distance between the connecting portion 15a2 of the connecting member 15 and the housing 17, including the space distance 17 between them, and to configure the light emitting device 10 having a better electrical insulation. Is possible.

  Further, as shown in FIG. 9A, a relatively wide recess 14 may be formed, and a protrusion 15 a constituting a leg fitted into the recess may be integrally formed on the lower surface of the connection member 15. . Further, as shown in FIG. 9 (b), the recess 14 is formed by a recess having a square shape, and a pair of protrusions 15 a having a square shape or the like constituting a leg portion fitted into the recess is formed on the lower surface of the connection member 15. You may form integrally.

  Further, as shown in FIG. 9C, the electrode 13 may be formed of a copper foil or the like in a groove constituting the recess 14. According to this configuration, by inserting the leg portion 15a of the connecting member 15 into the concave portion 14, the leg portion 15a and the electrode 13 can be firmly brought into close contact with each other, and connection means such as solder can be omitted. It becomes possible. 7 to 9, which show modified examples of the light emitting device 10, are assigned the same reference numerals as in FIGS. 1 to 6, and detailed descriptions thereof are omitted.

  Next, the structure of the illuminating device using the elongate light-emitting device 10 comprised above is demonstrated according to FIG. The illuminating device 20 of the present embodiment includes a translucent cover member 21 and the above-described light emitting device 10 disposed in the cover member 21.

  The cover member 21 is a translucent member made of a synthetic resin. In the present embodiment, the cover member 21 is made of milky white translucent polycarbonate and has a substantially circular cross section and has openings 21a and 21a at both ends. It is comprised in the cylinder shape which makes | forms the elongate substantially straight tube shape. The cover member 21 is preferably open at both ends in consideration of workability for inserting and disposing the light emitting device 10 inside, but one of the ends is closed. May be.

  The light emitting device 10 configured as described above is inserted into the cover member 21 configured as described above. That is, one end of the light emitting device 10 is inserted from one opening 21 a of the cover member 21. At this time, the circular arc portion 17a of the housing 17 is fitted to the inner surface of the cover member 21 and is inserted while being slid as a guide. Then, the cover member 21 is slid to the vicinity of the other opening 21a by further pushing operation.

  Thereby, the light emitting device 10 is inserted along the longitudinal direction of the cover member 21 and disposed therein, and the arc portion 17a of the housing 17 is formed on the inner surface of the cover member 21 as shown in FIG. It is mounted on and supported by. Thereby, each LED 12 provided on the substrate 11 is supported at a position displaced to one side (downward in FIG. 10B) from the center O of the circle in the cross section of the cover member 21, and the arc portion of the housing 17. 17a is supported in close contact with the arc inner surface of the cover member 21.

  With the cover member 21 and the light emitting device 10 configured as described above, the openings 21a and 21a at both ends of the cover member 21 in a state where the light emitting device 10 is inserted into the cover member 21 are inserted into the cover member 21 as shown in FIG. As shown to a), the nozzle | cap | die member 22 is engage | inserted and the opening of both ends is closed. The base member 22 is formed in a circular cap shape with a synthetic resin having heat resistance and electrical insulation, which is white PBT (polybutylene terephthalate) in this embodiment, and the caps are formed in openings 21 a and 21 a at both ends of the cover member 21. And is fixed to both end faces of the housing 17 by fixing means S2 such as screws.

  Also, one base member 22 is provided with a pair of L-shaped terminals 22a for feeding, and the terminals 22a and the input terminals P1 and P1 of the light-emitting device 10 are electrically connected by lead wires or the like, so that Power is supplied to each LED 12. The other base member 22 is provided with a terminal 22b constituting the loop electric circuit L1 of the light emitting device 10, and is electrically connected to each electrode 13 on the loop electric circuit side of the substrate 11 by a lead wire or the like. Further, the grounding terminal 22c is provided, and the illuminating device 20 composed of a straight tube LED lamp with an L-shaped base is configured.

  In the lighting device of this embodiment, the length of the cover member 21 is about 1200 mm, the outer diameter of the cover member 21 is about 25.5 mm, and a straight tube type with an L-shaped base corresponding to the current 40 W type straight tube fluorescent lamp. An LED lamp was constructed. In addition, the lighting device for lighting each LED12 of the light-emitting device 10 is provided in the lighting fixture side in which the illuminating device 20 comprised above is integrated. Then, power is supplied to the LEDs 12 from the L-type terminal 22a of the lighting device 10 attached to the fixture from the commercial power source E through the lighting device in the fixture, and lighting control is performed. The lighting device may be configured to be built in the lighting device 20. In this case, by arranging the lighting device on the back side of the substrate 11 (the back side of the light emitting surface), it is possible to configure the lighting device without reducing the area of the substrate 11, that is, the area of the light emitting surface.

  As described above, according to the present embodiment, it is possible to provide a lighting device suitable for mass production by using a light emitting device capable of configuring electrical connection means suitable for automation as a light source. At the same time, the arc portion 17a of the casing 17 that also serves as a heat radiating member is fitted in close contact with the arc inner surface of the cover member 21 and is supported in a thermally coupled state, and heat generated by each LED 12 is transmitted from the casing 17. It can be transmitted to the cover member 21 to effectively dissipate heat to the outside. Thereby, the temperature rise of each LED can be prevented, and the fall of luminous efficiency can be suppressed, and it becomes possible to provide an illuminating device with a long lifetime.

  As described above, in the present embodiment, the milky white translucent plastic cover member 21 is used. However, a cover member made of glass may be used. The cover member 21 may be colored blue or red.

  Further, as shown in FIG. 11A, the cover member 21 is formed in a bowl shape having a substantially semicircular cross-sectional shape, and is supported so as to cover the substrate 11 on the surface side of the linear portion 17 b of the housing 17. May be. According to this configuration, the material cost of the cover member 12 can be reduced and the cost can be reduced, and at the same time, the casing 17 that also serves as a heat radiating member can be exposed to the outside, and more effective heat radiation can be performed. It becomes possible.

  Furthermore, as shown in FIG. 11 (b), when the substrate 11 of the light emitting device 10 is made of ceramic with good thermal conductivity, aluminum that has been electrically insulated, or the like, without providing the casing 17, The light emitting device 10 may be configured by the substrate 11 alone and inserted into the cover member 21 to configure the housingless lighting device 10. According to this, by omitting the housing 17, it is possible to further reduce the cost and reduce the weight of the lighting device. In addition, in FIG. 11 which shows the modification of the illuminating device 20, the same code | symbol was attached | subjected to the same part as FIGS. 1-10, and detailed description was abbreviate | omitted.

  Next, the structure of the lighting fixture using the illuminating device 20 comprised as mentioned above is demonstrated. The lighting device 30 of the present embodiment is a lighting device such as a base light for facilities and businesses such as stores and offices. As shown in FIG. 12, the lighting device 30 is mounted on the lighting device body 31 and the lighting device main body. It is comprised with the illuminating device 20 grade | etc.,.

  The instrument body 31 is composed of a long rectangular box-shaped base portion 31a made of a white painted steel plate and the like, and a pair of reflecting plates 31b and 31b having an inverted Fuji shape provided on the lower surface of the base portion. The lighting device 31c is built in the base portion 31a. The lighting device 31c is configured by a lighting circuit that converts an AC voltage of 100V to a DC voltage of about 24V and supplies a constant current to each LED 12 of the lighting device 20.

  Each reflector 31b is provided with a pair of sockets 31d and 31d to which the cap member 22 provided in the lighting device 20 is attached. And the two illuminating devices 20 of the structure mentioned above are mounted | worn with respect to a pair of sockets 31d and 31d, and the lighting fixture 30 is comprised. The lighting fixture 30 configured as described above is wired to a commercial power supply and directly attached to an installation part X such as a ceiling of a room.

  When the installed luminaire 30 is turned on, power is supplied from the commercial power source to the LEDs 12 via the lighting device 31c, the sockets 31d and 31d through the base members 22 and 22 of the lighting device 20, and white light is emitted to illuminate the room. I do.

  At this time, the cover member 21 is made of milky white polycarbonate, can diffuse light, can be bright, can suppress a bright spot generated when the LED is turned on, and can perform illumination with reduced glare. In particular, each LED 12 on the substrate 11 is provided at a position deviated from the center O of the circle of the cover member 21, so that the light is emitted at an angle exceeding 180 °, so that the light is diffused over a wider range. It becomes possible to perform the illumination.

  As mentioned above, according to the lighting fixture of this embodiment, the lighting fixture suitable for mass production is provided by using the light-emitting device and lighting device which can comprise the electrical connection means suitable for automation as a light source. be able to. In the present embodiment, the lighting fixture is not limited to facilities / businesses such as the stores and offices exemplified above, but also various lighting fixtures for homes, and various outdoor lightings such as crime prevention lights, street lights, and road lights. An instrument may be configured.

  As described above, in the present embodiment, the light emitting device 10 is configured using a flat, thin, elongated rectangular substrate, and configures a straight tube illumination device that can be replaced with a general straight tube fluorescent lamp. However, the present invention can be applied to lighting devices having various other external shapes and uses, for example, a lighting device 20 having a circular annular shape as shown in FIG. In this case, the substrate 11 of the light emitting device 10 is constituted by a circuit board having an arc shape. For example, the four substrates are annularly connected and inserted into a cover member 21 having an annular cylindrical shape. It becomes possible to constitute by arranging.

  Further, as shown in FIG. 13B, a lighting device 20 having a quadrangular annular shape may be configured. In this case, the substrate 11 of the light emitting device 10 is constituted by a circuit board having a long rectangular shape. For example, the substrate 11 is constituted by connecting the eight substrates in a ring shape, and is covered with a cover member 21 having a rectangular ring shape. Can be configured. In addition, the board | substrate 11 connected to a square horizontal direction is provided with the recessed part 14 and the electrode 13 in the side of a transversal direction and a longitudinal direction, respectively, and electrical connection with the board | substrate 11 connected longitudinally, and mechanical Connection can be made.

  Moreover, although the illuminating device with a base was comprised, you may apply to the illuminating device which does not have a base, for example, does not have a base directly integrated in an instrument. In the present embodiment, the lighting device having a total length of about 1200 mm is configured. However, the total length is about 600 mm, and further, the lighting device having a length of about 2400 mm is configured, and various types of lighting devices having a length corresponding to the application are configured. You may do it. Furthermore, you may comprise the illuminating device with a thin pipe | tube outer diameter.

  The solid-state light-emitting element 12 constituting the light-emitting device 10 is preferably composed of, for example, an LED chip made of a gallium nitride (GaN) -based semiconductor that emits blue light. The solid-state light emitting device is acceptable. Moreover, although it was made to light-emit in white, according to the use of an illuminating device, you may comprise red, blue, green, etc., and also combining various colors. In addition, the solid light emitting elements are mounted in a line so as to form a straight line on a rectangular substrate. However, the solid light emitting elements are regularly fixed, such as those in which a large number of solid light emitting elements are arranged in a matrix, a staggered pattern or a radial pattern. A part or the whole may be arranged and mounted in a plane in order.

  Further, the solid light emitting element 12 may be of SMD type or COB type. In the case of the SMD type, it is preferable that the solid light emitting element 12 is composed of a plurality of solid light emitting elements, but the necessary number is selected according to the use of lighting. For example, about four element groups may be configured, and one group or a plurality of groups may be formed. Furthermore, it may be composed of a single solid state light emitting device.

  The shape of the substrate 11 is preferably a rectangular shape such as a rectangle or a square in order to constitute a straight tube lighting device. However, it is a polygonal shape such as a hexagon or an octagon, and further a circle or an ellipse. Those having a shape or the like may be arranged linearly or annularly.

  The cover member 21 may have a reflecting means such as a reflecting film formed on a part of its inner surface for improving light distribution characteristics. In addition, the cover member 21 preferably constitutes an envelope that substantially seals the light emitting portion, but it is not a condition that the cover member 21 is completely sealed, and may be optically sealed. In addition, a small ventilation hole or the like may be formed.

  The casing 17 is a metal having at least one of aluminum (Al), copper (Cu), iron (Fe), and nickel (Ni) having good thermal conductivity in order to enhance the heat dissipation of the solid state light emitting device. In addition, it may be made of an industrial material such as aluminum nitride (AlN) or silicon carbide (SiC). Furthermore, you may comprise with high heat conductive resin. Further, in order to further improve the heat dissipation performance, a large number of heat radiation fins projecting radially from one end side to the other end side, heat radiation pins projecting in the radial direction, and the like may be integrally formed on the outer peripheral surface.

  The base member 22 may be a pin-type terminal used in a general straight tube fluorescent lamp, or may be a base such as an Edison type E17 or E26 used in an incandescent bulb or a bulb-type fluorescent lamp. Good. Furthermore, it may be a GX53 base used for a flat thin lamp, and is not limited to a specific base. Moreover, the lighting device for controlling the lighting of the solid state light emitting device 12 may include a dimming circuit, a toning circuit and the like for dimming the solid state light emitting device.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and various design changes can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Light-emitting device 11 Board | substrate 12 Solid light emitting element 13 Electrode 14 Recessed part 15 Connection member 16 Fitting recessed part 17 Housing | casing 18 Insulating member 20 Lighting apparatus 21 Cover member 30 Lighting fixture 31 Instrument main body

Claims (4)

A plurality of substrates having a solid light-emitting element and electrodes electrically connected to the solid-state light-emitting element, provided with a recess on at least one side, and formed with a fitting recess by opposing one side provided with the recess;
A connecting member that at least partially fits into the fitting recess and electrically connects each electrode of the adjacent substrate;
A light-emitting device comprising: 2. The substrate according to claim 1, wherein the substrate is attached to a casing having electrical conductivity through an insulating member having electrical insulation, and the insulating member is interposed between the connection member and the casing. The light-emitting device of description. A translucent cover member;
The light-emitting device according to claim 1 or 2 disposed in the cover member;
An illumination device comprising: An instrument body;
The lighting device according to claim 3, which is attached to the fixture body;
The lighting fixture characterized by comprising.

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