JP5842440B2 - lighting equipment - Google Patents

lighting equipment Download PDF

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JP5842440B2
JP5842440B2 JP2011167142A JP2011167142A JP5842440B2 JP 5842440 B2 JP5842440 B2 JP 5842440B2 JP 2011167142 A JP2011167142 A JP 2011167142A JP 2011167142 A JP2011167142 A JP 2011167142A JP 5842440 B2 JP5842440 B2 JP 5842440B2
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light
substrate
light emitting
light source
emitting element
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JP2012160426A (en
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杉下 直樹
直樹 杉下
河野 誠
誠 河野
光次 柳田
光次 柳田
佐々木 淳
淳 佐々木
松田 良太郎
良太郎 松田
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東芝ライテック株式会社
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  Embodiments described herein relate generally to a lighting fixture using a light emitting element such as an LED as a light source.

  Conventionally, in general lighting fixtures for homes, an annular fluorescent lamp is used as a main light source, and a small light bulb having a relatively small light output suitable for the night light is used as the night light separately from the main light source.

  On the other hand, recently, with the increase in output, efficiency, and spread of light-emitting elements such as LEDs, lighting fixtures that can be expected to have a long life using a plurality of light-emitting elements as light sources have been developed. When a light emitting element is used as the light source, the lighting is not caused by a discharge phenomenon, so that lighting by deep light control can be easily realized.

  Therefore, in a lighting fixture that uses a light-emitting element as a light source, it is possible to reduce the light output by deeply adjusting the lighting of the light-emitting element without providing a separate light source for the night-light, and to have the function of a night-light. It is done.

JP 2005-142137 A

  However, when the function of the nightlight is provided by deeply adjusting the lighting of the plurality of light emitting elements as described above, the light emitting portion has a planar shape, unlike a conventional point light source, and therefore, as a nightlight. In the lighting state, the light emitting portion shines in a planar shape, causing a sense of discomfort.

  The present invention has been made in view of the above problems, and is provided with a light emitting element as an auxiliary light source, and this light emitting element is mounted on the same substrate as a substrate on which a plurality of light emitting elements as main light sources are mounted. It aims at providing the lighting fixture which can simplify wiring connection relationship, without producing.

A lighting fixture according to an embodiment of the present invention includes a main body formed of a metal material having a mounting portion facing a wiring fixture installed on a fixture mounting surface at a substantially center, and a mounting surface positioned around the mounting portion. Is mounted on the main body and has a power supply connection portion, a plurality of light emitting elements as main light sources mounted on the substrate, and mounted on the same substrate. A light emitting element serving as an auxiliary light source that is arranged in a substantially radial direction from the supply connecting portion to the mounting portion as a center and capable of dimming independently of the plurality of light emitting elements serving as the main light source is provided.

  According to the embodiment of the present invention, it is possible to provide a lighting fixture that can simplify the wiring connection relationship.

It is a perspective view which shows the lighting fixture which concerns on the 1st Embodiment of this invention. It is a disassembled perspective view which shows the same lighting fixture. It is a schematic top view which removes a cover member and a lighting device cover in the same lighting fixture, and shows it from below. It is sectional drawing which shows the same lighting fixture. It is an enlarged view which shows the A section in FIG. It is a top view which shows the board | substrate in the same lighting fixture. It is sectional drawing which expands and shows a part in the state which combined the light source part and the diffusion member in the same lighting fixture. It is sectional drawing which expands and shows the part of the light emitting element as an auxiliary light source in the state which combined the light source part and diffusion member in the lighting fixture. In the lighting fixture which concerns on the 2nd Embodiment of this invention, it is a top view which shows a specific board | substrate. It is sectional drawing which shows the state which combined the light source part and diffusion member in the same lighting fixture. In the lighting fixture which concerns on the 3rd Embodiment of this invention, it is a top view which shows a specific board | substrate. It is sectional drawing which shows the state which combined the light source part and diffusion member in the same lighting fixture. It is a perspective view which shows the lighting fixture which concerns on the 4th Embodiment of this invention. It is a disassembled perspective view of the front side which shows the lighting fixture. It is a disassembled perspective view of the back side which shows the lighting fixture. In the same lighting fixture, it is a top view which removes and shows a cover member and a light source part cover. It is a perspective view of the back side which shows the lighting fixture. It is a longitudinal cross-sectional view which shows the state which attached the lighting fixture to the ceiling surface.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. In each drawing, the wiring connection relationship using lead wires or the like may be omitted. In addition, the same code | symbol is attached | subjected to the same part and the overlapping description is abbreviate | omitted.

  The lighting apparatus of the present embodiment is for a general house that is used by being attached to a hanging sealing body as a wiring apparatus installed on the apparatus mounting surface, and has a plurality of light emitting elements mounted on a substrate. The room is illuminated by light emitted from the section.

  1 to 4, the lighting fixture includes a main body 1, a light source 2, a diffusion member 3, a lighting device 4, a lighting device cover 5, a mounting portion 6, and a cover member 7. Moreover, the adapter A electrically and mechanically connected to the hooking sealing body Cb installed in the ceiling surface C as an instrument mounting surface is provided. Such a lighting fixture is formed in a round and circular appearance, and the front side is a light irradiation surface and the back side is a mounting surface to the ceiling surface C.

  As shown in FIGS. 2 to 5, the main body 1 is a chassis formed in a circular shape from a flat plate of a metal material such as a cold-rolled steel plate, and is provided with a mounting portion 6 to be described later at a substantially central portion. The circular opening 11 is formed. Further, on the outer peripheral side of the flat portion 12 on the inner surface side to which the light source unit 2 is attached, a stepped portion 13 is formed toward the back side, and a bowl-shaped concave portion 14 is formed. Further, an elastic member 15 is provided on the back side of the main body 1.

  As will be described with reference to FIG. 6, the light source unit 2 includes a substrate 21 and a plurality of light emitting elements 22 as main light sources mounted on the substrate 21 (in FIG. 2, the light emitting elements 22). Is omitted). The substrate 21 is disposed so that four arc-shaped substrates 21 having a predetermined width dimension are connected to each other, and is formed in a substantially circle shape as a whole. That is, the substrate 21 formed in a substantially circle shape as a whole is composed of four divided substrates 21. And these board | substrates 21 are mutually connected by the connector Cn in the division part D (refer FIG. 3).

  By using the substrate 21 divided in this way, the division part D of the substrate 21 can absorb thermal contraction and suppress deformation of the substrate 21. In addition, although it is preferable to use the board | substrate 21 divided | segmented into plurality, you may make it use the board | substrate of 1 sheet integrally formed in the substantially circle shape.

  The board | substrate 21 consists of a flat plate of the glass epoxy resin (FR-4) which is an insulating material, and the wiring pattern is formed with the copper foil on the surface side. Further, a white resist layer acting as a reflective layer is applied on the wiring pattern, that is, on the surface of the substrate 21. The material of the substrate 21 can be a ceramic material or a synthetic resin material when an insulating material is used. Furthermore, when it is made of metal, a metal base substrate in which an insulating layer is laminated on one surface of a base plate having good thermal conductivity such as aluminum and excellent heat dissipation can be applied.

  The light emitting element 22 is an LED, which is a surface mount type LED package. A plurality of LED packages are arranged along the circumferential direction of a plurality of circle-shaped substrates 21, that is, in a plurality of rows on a substantially circumference centered on the mounting portion 6, and in this embodiment, two rows on the inner peripheral side and the outer peripheral side. Has been implemented. In addition, the LED package has a light emission color of daylight white N and a light bulb color L, which are alternately arranged, and the adjacent light emitting elements 22 in each row are arranged at substantially equal intervals. It is arranged in a space. Color adjustment is possible by adjusting the current flowing in the LED package of the daylight white N and the light bulb color L.

  Furthermore, as shown in FIG. 6, the distance L1 between the light emitting elements 22 adjacent in the circumferential direction is arranged to be shorter than the distance L2 between the light emitting elements 22 adjacent in the radial direction. That is, the relationship is L1 <L2.

  In addition, on a specific substrate 21a (right side in FIG. 3, right upper side in FIG. 6), a light emitting element 22a for nightlight as an auxiliary light source is mounted on the same substrate as the light emitting element 22 as a main light source. The light emitting element 22a is arranged between the inner and outer rows of the light emitting elements 22 as the main light source, and an LED package having the same specification as that of the light bulb color L in the main light source mounted in a circle shape. It is used. Thereby, the common use of the members is achieved, and the mounting man-hours can be improved.

  Furthermore, the light emitting element 22a for the night light and the light emitting element 22 for the main light source are different from each other by about 90 degrees. That is, the light emitting element 22a for nightlights is arranged so that the long side of the rectangular outer shape faces the circumferential direction. Thus, the arrangement of the light emitting elements 22 of the plurality of main light sources is balanced.

  In addition, the light-emitting element 22a for nightlight can be dimmed independently of the light-emitting element 22 that is a main light source. Therefore, the user can adjust the brightness to a desired level and turn it on as a night light.

  If the light-emitting element 22a for the night light is mounted on a substrate different from the substrate 21 on which the light-emitting element 22 as the main light source is mounted, it is necessary to configure the wiring connection relationship by using lead wires or the like. May be complicated. In the present embodiment, since the light emitting element 22 as the main light source and the light emitting element 22a for the nightlight are mounted on the same substrate, it is possible to omit a lead wire or shorten the wiring length, Connection relationship can be simplified.

  Further, as shown in FIG. 3, a power supply connection portion 23 is provided on the inner peripheral side of the specific substrate 21a. Specifically, the power supply connecting portion 23 is a connector, to which an output line W led out from the lighting device 4 described later is connected, and each light emitting element 22 as a main light source or the like via the wiring pattern of the substrate 21. Electric power is supplied to the light emitting element 22a as an auxiliary light source.

  The power supply connection part 23 and the light emitting element 22a for nightlight are provided on one specific substrate 21a among the divided substrates 21. In addition, the power supply connection portion 23 and the light emitting element 22a for the nightlight are arranged so that the separation distance does not become long. That is, the light emitting element 22a for nightlights is arranged in a substantially radial direction from the power supply connection portion 23 to the attachment portion 6 as a center. Therefore, the power supply connection part 23 and the light emitting element 22a for the nightlight are arranged on the same straight line in the radial direction, and the distance between them is shortened.

  For this reason, it is possible to achieve an effect of simplifying the wiring connection relationship from the power supply connection portion 23 to the light emitting element 22a for nightlight, specifically, the layout of the wiring pattern.

  The light emitting elements 22 are not necessarily mounted in a plurality of rows. For example, you may make it mount in 1 row along the circumferential direction. The number of columns and the number of the light emitting elements 22 can be appropriately set according to a desired output.

  The LED package is roughly composed of an LED chip disposed in a cavity formed of ceramics or synthetic resin, and a translucent resin for molding such as epoxy resin or silicone resin that seals the LED chip. It is configured. The LED chip is a blue LED chip that emits blue light. The translucent resin is mixed with a phosphor so that daylight white or light bulb color light can be emitted.

  In addition, LED may be made to mount an LED chip directly on the board | substrate 21, and you may make it mount a bullet-type LED, and a mounting system and a format are not exceptionally limited.

  The diffusing member 3 is a lens member, and is made of, for example, a transparent synthetic resin having an insulating property such as polycarbonate or acrylic resin as described with reference to FIGS. 7 and 8. Are formed integrally in a substantially circle shape, and are disposed so as to cover the entire surface of the substrate 21 including the light emitting element 22.

Further, as representatively shown in FIGS. 5 and 7, the lens member has two chevron shapes in the circumferential direction facing the light emitting element 22 on the inner and outer portions of a substantially circle shape. Thus, the protrusion 31 having a constant cross-sectional shape is continuously formed. A U-shaped groove 32 is continuously formed along the circumferential direction inside the protruding portion 31. Therefore, the U-shaped groove 32 is arranged to face the plurality of light-emitting elements 22, and the plurality of light-emitting elements 22 are accommodated and covered in the U-shaped groove 32. It is in a state.
Further, a flat portion 33 extending in the width direction is formed from the protruding portions 31 so that the entire surface of the substrate 21 is covered.

  According to the lens member configured in this way, as shown in FIG. 5, the light emitted from the plurality of light emitting elements 22 is diffused mainly by the protrusions 31 in the inner circumferential direction and the outer circumferential direction on the circumference. Is emitted. That is, the light emitted from the light emitting element 22 is mainly diffused and emitted in the radial direction with the circle-shaped center where the light emitting element 22 is disposed as the origin.

  Therefore, it is possible to improve the uniformity of the irradiation light by the light emitted from the plurality of light emitting elements 22 by the lens member. Further, the graininess due to the luminance of each light emitting element 22 can be suppressed. In this case, it is desirable to set the light distribution angle by diffusion to about 120 to 160 degrees.

Further, the lens member mainly diffuses the light emitted from the light emitting element 22 in the radial direction, but the separation distance L1 between the light emitting elements 22 adjacent in the circumferential direction is the separation between the light emitting elements 22 adjacent in the radial direction. Since it is arranged to be shorter than the distance L2, it is possible to make the luminance of the light emitting surface uniform.
Moreover, since the flat part 33 is formed in the diffusing member 3 so as to cover the entire surface of the substrate 21, the charging part is covered and protected by the diffusing member 3.

  As representatively shown in FIG. 8, the portion of the diffusing member 3 corresponding to the portion where the power supply connection portion 23 and the night light emitting element 22a are disposed is formed in a substantially flat shape so as to cover them. Yes. In this case, the light-emitting element 22a for nightlights is disposed between the two ridges 31 so as to be spaced apart from the projections 31 by a predetermined dimension. Therefore, it can suppress that the light radiate | emitted from the light emitting element 22a will be shielded by the protruding part 31 becoming an obstruction. Further, since the protruding portion 31 is not disposed corresponding to the light emitting element 22a for nightlight, the light emitting element 22a functions as a point light source having relatively directivity.

  Note that the diffusing member 3 may not be integrally formed in a substantially circle shape. For example, corresponding to the divided substrates 21, the substrates 21 may be divided and formed. In this case, the plurality of light emitting elements 22 mounted on one substrate 21 are continuously covered with the diffusing member 3.

Furthermore, various shapes can be adopted as the cross-sectional shape of the protruding portion 31 of the lens member. For example, as an asymmetric shape, the light diffusion effect toward the inner peripheral side can be made different from the light diffusion effect toward the outer peripheral side. In this case, the inner peripheral side can be brightened by diffusing the light diffusing effect toward the inner peripheral side larger than the light diffusing effect toward the outer peripheral side. Further, a surface that totally reflects the light emitted from the light emitting element 22 may be formed to effectively diffuse. Furthermore, a concave surface may be formed to realize the diffusion effect.
In addition, the diffusion member 3 is not limited to a lens member, and a diffusion sheet or the like may be applied.

  In the light source unit 2 configured as described above, as representatively shown in FIGS. 4 and 5, the substrate 21 is positioned around the mounting unit 6, and the mounting surface of the light emitting element 22 is the front side, that is, It is arranged so as to face the lower irradiation direction. Further, the substrate 21 is attached in surface contact so that the back surface side of the substrate 21 is in close contact with the flat portion 12 on the inner surface side of the main body 1. Specifically, the diffusing member 3 is overlapped from the front side of the substrate 21, and the diffusing member 3 is attached to the main body 1 by a fixing means such as a screw S, so that the substrate 21 is connected to the main body 1 and the diffusing member 3. It is sandwiched between and pressed and fixed. That is, the substrate 21 and the diffusing member 3 are fastened together by one screw S.

  Accordingly, the substrate 21 is thermally coupled to the main body 1 so that heat from the substrate 21 is conducted from the back surface side to the main body 1 and radiated. The surface contact between the substrate 21 and the main body 1 is not limited to the case where the entire surface of the substrate 21 is in contact with the main body 1. It may be a partial surface contact.

  In addition, since the flat portion 33 of the diffusion member 3 is in surface contact with the mounting surface side of the substrate 21, heat is transmitted from the mounting surface side of the substrate 21 to the diffusion member 3 and passes through the diffusion member 3. Heat can be dissipated. That is, heat can be radiated from the front side of the substrate 21.

As shown in FIGS. 2 to 4, the lighting device 4 includes a circuit board 41 and circuit components 42 such as a control IC, a transformer, and a capacitor mounted on the circuit board 41. The circuit board 41 is formed in a substantially arc shape so as to surround the periphery of the mounting portion 6, and the adapter A side is electrically connected, and is connected to a commercial AC power source via the adapter A. Accordingly, the lighting device 4 receives this AC power supply, generates a DC output, supplies the DC output from the output line W to the light emitting element 22 via the power supply connection portion 23, and controls the light emitting element 22 to be turned on. It has become.
Such a lighting device 4 is disposed between the attachment portion 6 and the light source portion 2, that is, the substrate 21.

  As shown in FIGS. 2 and 4, the lighting device cover 5 is formed in a substantially short cylindrical shape by a metal material such as a cold-rolled steel plate and is attached to the main body 1 so as to cover the lighting device 4. The side wall 51 is inclined so as to expand toward the back side, and an opening 53 is formed in the front wall 52 so as to correspond to the attachment portion 6. Therefore, a part of the light emitted from the light emitting element 22 is reflected to the front side by the side wall 51 and effectively used. In addition, an arcuate guide recess 54 that is recessed toward the back surface is formed at the periphery of the opening 53.

  The attachment portion 6 is an adapter guide formed in a substantially cylindrical shape, and an engagement port 61 through which the adapter A is inserted and engaged is provided at the center portion of the adapter guide. The adapter guide is disposed corresponding to the opening 11 formed in the central portion of the main body 1. A base is formed on the outer periphery of the adapter guide so as to protrude from the outer periphery, and an electrical auxiliary component 62 such as an infrared remote control signal receiver or an illuminance sensor is disposed on the base. .

  Note that the attachment portion 6 is not necessarily a member referred to as an adapter guide or the like. For example, it may be an opening formed in the main body 1 or the like, and in essence, it means a member or a part that is opposed to the hooking sealing body Cb as a wiring device and to which the adapter A is engaged.

  The cover member 7 is formed in a substantially circular shape from a translucent material such as an acrylic resin, and has a milky white diffusibility, and has a non-translucent circular decorative cover 71 in the center. Is installed. The decorative cover 71 is formed with a light receiving window 72 having a substantially triangular translucency so as to face the electrical auxiliary component 62. Further, a projecting pin 73 projecting in the inner surface direction is formed near the center of the cover member 7 on the inner surface side.

  The cover member 7 is detachably attached to the outer peripheral edge of the main body 1 so as to cover the front side of the main body 1 including the light source section 2. Specifically, by rotating the cover member 7, a cover mounting bracket (not shown) provided on the cover member 7 is engaged with a cover receiving bracket 75 disposed in the recess 14 on the outer peripheral edge of the main body 1. Can be installed.

  Thus, in a state where the cover member 7 is attached to the main body 1, as shown mainly in FIG. 4, the inner surface side of the cover member 7 comes into surface contact with the front wall 52 of the lighting device cover 5. Therefore, heat generated from the lighting device 4 or the like can be conducted to the lighting device cover 5 and further conducted to the cover member 7 to promote heat dissipation.

  The distance between the diffusion member 3 and the cover member 7 is set to 20 to 60 mm, preferably 30 to 50 mm. Thereby, the uniformity of the irradiated light becomes good, and the heat conducted from the mounting surface side of the substrate 21 to the diffusion member 3 is effectively radiated through the cover member 7.

  Here, the cover member 7 is rotated and attached to the main body 1. However, it is necessary to align the position of the light receiving window 72 so as to face the electrical auxiliary component 62. For this reason, in this embodiment, although detailed description is abbreviate | omitted, the position control means is comprised by the protrusion pin 73 formed in the cover member 7 side, and the guide recessed part 54 formed in the lighting device cover 5. FIG. . By this position restricting means, the light receiving window 72 is positioned to face the electrical auxiliary component 62, and for example, the infrared remote control signal receiving unit can receive a control signal from the infrared remote control transmitter.

  The adapter A is electrically and mechanically connected to a hooking sealing body Cb installed on the ceiling surface C by a hooking blade provided on the upper surface side, and has a substantially cylindrical shape. Is provided so that it always protrudes to the outer peripheral side by a built-in spring. The locking portion A1 is immersed by operating a lever provided on the lower surface side. Further, a power cord for connecting to the lighting device 4 is led out from the adapter A, and is connected to the lighting device 4 via a connector (see FIG. 3).

  Next, the attachment state to the ceiling surface C of a lighting fixture is demonstrated with reference to FIG. First, the adapter A is electrically and mechanically connected to the hanging sealing body Cb installed on the ceiling surface C in advance. From this state, the fitting body 6 is pushed up by hand from below until the engaging portion 61 of the adapter A is securely engaged with the engaging port 61 of the adapter guide while the engaging portion 61 of the adapter guide as the mounting portion 6 is aligned with the adapter A. To install. Then, the cover member 7 is attached to the main body 1. This attachment completion state is the state shown in FIG. 4, and at this time, the elastic member 15 is interposed in close contact between the ceiling surface C and the back side of the main body 1, and the lighting fixture is fixed to the ceiling surface C. Become.

  Further, when removing the luminaire, it can be removed by removing the cover member 7 and operating the lever provided on the adapter A to disengage the engaging portion A1 of the adapter A.

When power is supplied to the lighting device 4 in a state where the lighting fixture is attached to the ceiling surface C, the light emitting elements 22 are energized through the substrate 21 and the light emitting elements 22 are turned on. The light emitted from the light emitting element 22 is diffused in the radial direction by the diffusion member 3 that continuously covers the plurality of light emitting elements 22 and is emitted to the front side. The light radiated to the front side is transmitted through the cover member 7 and irradiated outward. Therefore, it is possible to improve the uniformity of the irradiated light and to suppress the graininess due to the brightness of each light emitting element 22.
Further, a part of the light traveling toward the inner peripheral side in the radial direction is reflected to the front side by the inclined side wall 51 in the lighting device cover 5 and is effectively used.
Further, when the light emitting element 22a for nightlight is turned on, it is possible to prevent the light emitted from the light emitting element 22a from being blocked by the protruding portion 31.

  On the other hand, the heat generated from the light emitting element 22 is effectively conducted to the main body 1 and is dissipated over a wide area because the back side of the substrate 21 is in surface contact with the main body 1. Further, since the step portion 13 is formed in the vicinity of the outer peripheral side of the substrate 21 along the outer periphery of the substrate 21, the heat radiation area can be increased by the step portion 13, and the heat dissipation effect at the outer peripheral portion of the main body 1. Can be increased. In addition, the step portion 13 can provide a reinforcing effect of the main body 1.

  In addition, since the lighting device 4 is disposed between the mounting portion 6 and the substrate 21, the lighting device 4 is reduced from being thermally affected by the substrate 21. This is because the heat of the substrate 21 is conducted toward the outer peripheral direction of the main body 1 and tends to be radiated.

  Further, since the cover member 7 comes into surface contact with the lighting device cover 5, heat generated from the lighting device 4 is conducted to the lighting device cover 5 and further conducted to the cover member 7 for heat dissipation. Can do.

  In addition, since the flat portion 33 of the diffusing member 3 is in surface contact with the mounting surface side of the substrate 21, heat can be radiated from the mounting surface side of the substrate 21 through the diffusing member 3 and also from the front surface side. Become. Further, in this case, since the diffusing member 3 covers the entire surface of the substrate 21, the charging unit is protected.

  As described above, according to the present embodiment, since the light emitting element 22 as the main light source and the light emitting element 22a for the nightlight are mounted on the same substrate, the lead wires and the like are omitted or the wiring length thereof is shortened. It is possible to simplify the wiring connection relationship. In addition, since the distance between the power supply connecting portion 23 and the light emitting element 22a for the nightlight is shortened, it is possible to provide a lighting fixture that can further simplify the wiring connection relationship.

  Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 9 shows a specific substrate 21a, and FIG. 10 shows a cross section in a state where the diffusion member 3 is disposed on the specific substrate 21a. In addition, the same code | symbol is attached | subjected to the part which is the same as that of 1st Embodiment, or an equivalent part, and the overlapping description is abbreviate | omitted.

In the present embodiment, as shown in FIG. 9, the night-light light-emitting elements 22a serving as auxiliary light sources are mounted inside the inner peripheral rows of the light-emitting elements 22 serving as main light sources. In such a configuration, as shown in FIG. 10, the light-emitting element 22 a for the night lamp is arranged with a predetermined dimension away from the protruding portion 31 of the diffusing member 3.
Therefore, similarly to the first embodiment, it is possible to suppress the light emitted from the light emitting element 22a from being blocked by the protrusion 31 as an obstacle.

  Next, a third embodiment of the present invention will be described with reference to FIGS. FIG. 11 shows a specific substrate 21a, and FIG. 12 shows a cross section in a state where the diffusion member 3 is disposed on the specific substrate 21a. In addition, the same code | symbol is attached | subjected to the part which is the same as that of 1st Embodiment, or an equivalent part, and the overlapping description is abbreviate | omitted.

In this embodiment, as shown in FIG. 11, the light-emitting elements 22a for nightlights as auxiliary light sources are mounted outside the row on the outer peripheral side of the light-emitting elements 22 that are main light sources. Even in such a configuration, as shown in FIG. 12, the light-emitting element 22 a for the nightlight is arranged at a predetermined distance from the protruding portion 31 of the diffusing member 3.
Therefore, similarly to the first embodiment, it is possible to suppress the light emitted from the light emitting element 22a from being blocked by the protrusion 31 as an obstacle.

  Next, a fourth embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals and may be described in a simplified manner.

  As in the first embodiment, the lighting fixture of the present embodiment is for a general house that is used by being attached to a hanging ceiling body as a wiring fixture installed on the fixture mounting surface, and is mounted on a substrate. The room is illuminated by light emitted from a light source unit having a plurality of light emitting elements.

  The lighting fixture includes a fixture body 1, a light source portion 2, a light source portion cover 3, a lighting device 4, a lighting device cover 5, a center member Cm, an adapter guide 6 as an attachment portion, and a cover member 7. I have. Furthermore, the lighting fixture includes an optical sensor 8 and an indirect light source unit 9.

  Further, it includes an adapter A (see FIG. 18) that is electrically and mechanically connected to a hanging sealing body Cb installed on a ceiling surface C as an appliance mounting surface, and an infrared remote control transmitter Rc. The front side is a light irradiation surface and the back side is a mounting surface to the ceiling surface C.

  As shown in FIGS. 14 to 18, the main body 1 is a chassis formed in a circular shape from a flat plate of a metal material such as a cold-rolled steel plate, and a circle in which an adapter guide 6 described later is disposed at a substantially central portion. A shaped opening 11 is formed. The opening 11 is formed in a shape substantially equal to the outer shape of the adapter guide 6 with a part of the circular shape protruding outward.

  On the outer peripheral side of the opening 11, a projecting portion 12 having a quadrangular shape with a corner portion having an R shape and projecting to the back side is formed. Further, on the outer peripheral side of the protruding portion 12, a circular annular protruding portion 13 protruding to the front surface side is formed. Further, on the outer peripheral side of the projecting portion 13, a circular annular projecting portion 14 is formed so as to project on the back side so as to be continuous with the projecting portion 13 in the radial direction, in other words, a circular annular projecting portion 14 forming a recess on the front side. .

  A cover member receiving metal fitting 75 to which the cover member 7 is detachably attached is disposed in the recess formed by the protruding portion 14. These protrusions 12, 13, and 14 mainly function as attachment portions for members attached to the chassis, and also have a function for reinforcing the strength of the chassis and a function for increasing the heat radiation area.

  As shown in FIGS. 14, 16 and 18, the light source unit 2 includes a substrate 21 and a plurality of light emitting elements 22 mounted on the substrate 21. The substrate 21 is disposed so that four arc-shaped substrates 21 having a predetermined width dimension are connected to each other, and is formed in a substantially circle shape as a whole. That is, the substrate 21 formed in a substantially circle shape as a whole is composed of four divided substrates 21.

  By using the substrate 21 thus divided, it is possible to suppress the deformation of the substrate 21 by absorbing thermal contraction at the divided portion of the substrate 21. In addition, although it is preferable to use the board | substrate 21 divided | segmented into plurality, you may make it use the board | substrate of 1 sheet integrally formed in the substantially circle shape.

  The board | substrate 21 consists of a flat plate of the glass epoxy resin (FR-4) which is an insulating material, and the wiring pattern is formed with the copper foil on the surface side. The light emitting element 22 is electrically connected to this wiring pattern. Further, a white resist layer acting as a reflective layer is applied on the wiring pattern, that is, on the surface of the substrate 21.

  The material of the substrate 21 can be a ceramic material or a synthetic resin material when an insulating material is used. Furthermore, when it is made of metal, a metal base substrate in which an insulating layer is laminated on one surface of a base plate having good thermal conductivity such as aluminum and excellent heat dissipation can be applied.

  The light emitting element 22 is an LED, which is a surface mount type LED package. A plurality of LED packages are mounted in a plurality of rows along the circumferential direction of the circle-shaped substrate 21, in the present embodiment, in three rows on the circumference of substantially concentric circles having different radii. That is, it is mounted over the inner circumferential row, the outer circumferential row, and an intermediate row between the inner circumferential row and the outer circumferential row.

  The LED package is roughly composed of an LED chip disposed in a cavity formed of ceramics or synthetic resin, and a translucent resin for molding such as epoxy resin or silicone resin that seals the LED chip. It is configured.

  The LED packages mounted on the inner and outer rows are used in white light (N) and light bulb color (L), which are on the circumference. Are arranged alternately at substantially equal intervals. The LED chip is an LED chip that emits blue light. In the translucent resin, a phosphor is mixed, and in order to be able to emit white light of daylight white (N) and light bulb color (L), the light is mainly complementary to the blue light. Yellow phosphors that emit some yellow light are used.

  As the LED packages mounted in the middle row, those that emit light in red (R), green (G), and blue (B) are used. Accordingly, the LED chips are LED chips that emit red, green, and blue light, respectively, and these LED chips are sealed with a translucent resin for molding.

  These LED packages that emit red (R), green (G), and blue (B) light are sequentially spaced on the circumference sequentially from red (R), green (G), and blue (B) at substantially equal intervals. It is arranged in the space.

  The arrangement of red (R), green (G), and blue (B) in the LED package is not specified and may be in any order. For example, the arrangement is in the order of green (G), red (R), and blue (B). May be. Further, adjacent LED packages are preferably arranged with different emission colors, but are not particularly limited. As an example, it is possible to continuously arrange two same colors such as red (R), red (R), green (G), green (G), blue (B), and blue (B). is there.

  In this way, a plurality of light emitting elements 22 that emit light in the daylight white color (N) and the light bulb color (L) are arranged in a line on the circumference of substantially concentric circles having different radii. A plurality of light emitting elements emitting light in red (R), green (G), and blue (B) in a row between the light emitting elements 22 that emit light in the daylight white (N) and light bulb color (L). The light emitting element 22 is disposed.

  Accordingly, a plurality of light-emitting elements 22 having different emission colors, that is, light-emitting elements 22 that emit daylight white (N), light bulb color (L) red (R), green (G), and blue (B) are arranged. Therefore, the range of light colors that can be expressed by mixing these light is wide, and the light color can be appropriately adjusted by adjusting the output of the light emitting element 22.

  As shown mainly in FIG. 16, on a specific substrate 21a (upper right side in FIG. 16), a light emitting element 22a for nightlight as an auxiliary light source is mounted on the same substrate as the light emitting element 22 as the main light source. . The light emitting element 22a is arranged on the inner peripheral side of the light emitting element 22 as a main light source, and an LED package having the same specification as that of the light bulb color L in the main light source mounted in a circle shape is used.

  Further, an infrared remote control signal light receiving element 25 and a channel setting switch 26 are mounted on the specific substrate 21a. The infrared remote control signal light receiving element 25 is an infrared light receiving element, and is composed of a photodiode as a photoelectric conversion element. The infrared remote control signal light receiving element 25 receives an infrared control signal transmitted from the remote control transmitter Rc and changes the light emitting state of the light emitting element 22. Operate to control.

  The channel setting switch 26 switches the channel of the infrared remote control signal light receiving element 25 so that the luminaire can be identified when a plurality of luminaires are installed within a range in which a signal transmitted from the remote control transmitter Rc can be transmitted. This is a channel setting switch. Therefore, only when the setting of the switch 26 and the setting of the channel setting switch provided in the remote control transmitter Rc match, a specific lighting apparatus can be controlled by operating the remote control transmitter Rc, and a plurality of illuminations can be controlled. The instrument is prevented from being operated simultaneously.

  As described above, the light emitting element 22a and the infrared remote control signal light receiving element 25 as the auxiliary light source, and the channel setting switch 26 are mounted on the same substrate as the substrate 21 on which the light emitting element 22 as the main light source is mounted. Further, it is possible to omit the lead wire or the like or to shorten the wiring length, and to simplify the wiring connection relationship.

  If the light emitting element 22a for nightlight and the infrared remote control signal light receiving element 25 are mounted on a board different from the board 21 on which the light emitting element 22 as the main light source is mounted, the wiring connection relationship is constituted by lead wires or the like. Configuration may be complicated.

  Further, since the light emitting element 22a, the infrared remote control signal light receiving element 25, and the channel setting switch 26 as the auxiliary light source are disposed on the inner peripheral side of the light emitting element 22 that is the main light source, In comparison, the mounting area can be formed compactly.

By the way, the optical sensor 8 to be described later is not mounted on the same substrate as the substrate 21 on which the light emitting element 22 as the main light source is mounted. The optical sensor 8 is configured by being mounted on another substrate. The reason is that the optical sensor 8 has a function of detecting ambient brightness and automatically controlling the light emitting state of the light emitting element 22. This is to facilitate the provision of two types of lighting fixtures, which are not provided.
That is, when deploying a lighting fixture that does not have a function of automatically controlling the light emission state, the optical sensor 8 can be easily omitted.

  Moreover, the light emitting element 22a for nightlights can be dimmed independently of the light emitting element 22 which is a main light source. Therefore, the user can adjust the brightness to a desired level and turn it on as a night light.

  In addition, LED may be made to mount an LED chip directly on the board | substrate 21, and you may make it mount a bullet-type LED, and a mounting system and a format are not exceptionally limited.

  In the light source unit 2 configured in this way, as shown in FIG. 18, the substrate 21 is positioned around the opening 11 of the main body 1, and the mounting surface of the light emitting element 22 is the front side, that is, the lower side. Arranged in the irradiation direction. Moreover, it attaches by fixing means, such as a screw | thread, so that the back surface side of the board | substrate 21 may closely_contact | adhere to the inner surface side of the main body 1. FIG. Accordingly, the substrate 21 is thermally coupled to the main body 1 so that heat from the substrate 21 is conducted from the back surface side to the main body 1 and radiated.

  As shown in FIGS. 14 and 18, the light source unit cover 3 is disposed on the front side of the light source unit 2. The light source cover 3 is made of, for example, a transparent synthetic resin having an insulating property such as polycarbonate or acrylic resin, and is integrally formed in a substantially circle shape along the arrangement of the light emitting elements 22, and includes the light emitting elements 22. Are arranged so as to cover the entire surface of the substrate 21.

  Therefore, the light emitted from the light emitting element 22 is transmitted through the light source unit cover 3. Further, since the entire surface of the substrate 21 is covered, the charging unit is covered with the light source unit cover 3 to ensure insulation.

  As representatively shown in FIGS. 15 and 18, the lighting device 4 includes a circuit board 41 and circuit components 42 such as a control IC, a transformer, and a capacitor mounted on the circuit board 41. The circuit board 41 is formed in a plate shape so as to surround the periphery of the center portion, and the circuit component 42 is mounted on the surface side thereof.

  The circuit board 42 is electrically connected to the adapter A side, and is connected to a commercial AC power source via the adapter A. Accordingly, the lighting device 4 receives this AC power supply, generates a DC output, supplies the DC output to the light emitting element 22 via the lead wire, and controls the light emitting element 22 to be turned on.

  Such a lighting device 4 is attached to and covered with the lighting device cover 5 and is arranged on the back side of the main body 1. In this case, the circuit board 41 is attached with the circuit component 42 facing the front side (the lower side in the drawing).

The lighting device cover 5 is formed in a substantially rectangular short cylinder shape by a metal material such as a cold rolled steel plate, and the side wall 5a is inclined so as to expand toward the front surface side. An opening 5c is formed at the center.
As shown in FIGS. 15, 17, and 18, the lighting device cover 5 is mounted with a front flange mounted on the projecting portion 12 of the chassis and screwed.

As shown in FIGS. 14, 16, and 18, the center member Cm is made of a synthetic resin material such as PBT resin, and is formed in a substantially short cylindrical shape. The center member Cm is hooked at the center and faces the sealing body Cb. An opening Cm1 is provided. An annular space Cm2 is formed around the opening Cm1, and the optical sensor 8 is arranged in the space Cm2.
Further, a light receiving window Cm3 facing the light receiving portion of the optical sensor 8 is formed on the front wall of the center member Cm.

  As shown in FIG. 18, the center member Cm configured in this way is attached to the chassis with a flange on the back side screwed to the chassis via the light source cover 3. The center member Cm can be directly or indirectly attached to the chassis, and its specific attachment configuration is not limited.

  The adapter guide 6 is a member through which the adapter A is inserted and engaged. As shown in FIGS. 15 and 18, the adapter guide 6 is formed in a substantially cylindrical shape, and an engaging port 61 through which the adapter A is inserted and engaged is provided at the center. The adapter guide 6 is disposed corresponding to the opening 11 formed in the central portion of the main body 1.

  The cover member 7 is formed in a substantially circular shape from a translucent material such as an acrylic resin and has a milky white diffusibility, and a circular opening 7a is formed in the center. A cover member decorative frame 7b is attached to the outer peripheral portion of the cover member 7, and the cover member decorative frame 7b is formed of a transparent material made of acrylic resin or the like.

  The cover member 7 is detachably attached to the outer peripheral edge of the main body 1 so as to cover the front side of the main body 1 including the light source section 2. Specifically, by rotating the cover member 7, the cover member mounting bracket 74 provided on the cover member 7 is changed to the cover member receiving bracket 75 provided in the recess formed by the protruding portion 14 of the main body 1. Installed by engaging.

  Further, when removing the cover member 7, the cover member 7 can be removed by rotating the cover member 7 in the direction opposite to that at the time of attachment and releasing the engagement between the cover member attachment fitting 74 and the cover member receiving fitting 75. it can.

  As shown in FIGS. 14 and 18, the decorative cover 71 is formed in a circular shape from a material such as a transparent acrylic resin. The decorative cover 71 corresponds to the opening 7a of the cover member 7, is attached to the front wall of the center member Cm, and is disposed so as to cover and close the opening Cm1 of the center member Cm.

  As shown in FIG. 18, the optical sensor 8 is an illuminance sensor, and includes a sensor element such as a photodiode, and operates to detect ambient brightness and output a detection signal. Thereby, when the surroundings are bright, the light source unit 2, that is, the light emitting element 22 is controlled to be dimmed (dimmed) and lit.

  The optical sensor 8 is mounted on the substrate 81 and is disposed and attached in the space Cm2 of the center member Cm so that the light receiving portion thereof faces the light receiving window Cm3. More specifically, the substrate 81 is screwed to the boss of the center member Cm, the optical sensor 8 is accommodated in the guide tube, and the light receiving portion thereof is disposed so as to face the light receiving window Cm3.

  The indirect light source unit 9 is provided on the back side of the main body 1 and mainly has a function of illuminating the ceiling surface brightly. As shown in FIGS. 15, 17, and 18, the indirect light source unit 9 includes a substrate 91 and a plurality of light emitting elements 92 mounted on the substrate 91.

  Substrates 91 on which the light emitting elements 92 are mounted are attached to four locations on the side wall 5 a of the lighting device cover 5. These substrates 91 are covered with a box-like translucent cover 93.

  The light emitting element 92 is an LED, like the light source unit 2, and is a surface mount type LED package. The light emitting element 92 is connected to the lighting device 4 and controlled to be lit.

Further, on the back side of the lighting device cover 5, a lighting fixture mounting spring member 10 is mounted in the vicinity thereof in correspondence with the mounting position of the indirect light source unit 9. The spring member 10 is made of a metal such as stainless steel, and is formed by bending a horizontally long rectangular plate spring. The spring member 10 has a fixed portion 10a at the center, and an extended portion 10b is formed obliquely upward (back side) from the fixed portion 10a, and a rectangular shape is formed on the tip side thereof. The contact portion 10c is formed.
In addition, you may make it provide non-slip | skid parts, such as sponge and silicone rubber, by adhesion | attachment etc. in the contact part 10c.

  As shown in FIG. 18, the adapter A is electrically and mechanically connected to a hooking sealing body Cb installed on the ceiling surface C by a hooking blade provided on the upper surface side, and has a substantially cylindrical shape. A pair of locking portions A1 are provided on both sides of the peripheral wall so as to always protrude to the outer peripheral side by a built-in spring. The locking portion A1 is immersed by operating a lever provided on the lower surface side. Further, a power cord for connecting to the lighting device 4 is led out from the adapter A, and is connected to the lighting device 4 via a connector.

  The infrared remote control transmitter Rc transmits, for example, a specific coded infrared remote control signal in the form of a pulse with a frequency of 38 kHz. For example, an all-light on button, a dimming button, a nightlight button, an off button, etc. Is provided. By operating the remote control transmitter Rc toward the infrared remote control signal light receiving element 25, it is possible to control the light emission state of the light emitting element 22 in the light source unit 2, that is, all-light lighting, dimming lighting, extinguishing, and the like.

Next, the attachment state to the ceiling surface C of a lighting fixture is demonstrated with reference to FIG. First, the adapter A is electrically and mechanically connected to the hanging sealing body Cb installed on the ceiling surface C in advance. While the decorative cover 71 of the lighting fixture is removed, the fixture body 1 is held until the engaging portion 61 of the adapter A is securely engaged with the engaging port 61 of the adapter guide while the engaging port 61 of the adapter guide is aligned with the adapter A. The mounting operation is performed by manually pushing up from the lower side against the elastic force of the lighting fixture mounting spring member 10.
Next, the decorative cover 71 is attached, and the opening Cm1 at the center of the center member Cm facing the hooking sealing body Cb is covered and closed.

  In this state, the lighting fixture mounting spring member 10 is elastically deformed, and the contact portion 10c is elastically in contact with the ceiling surface C. Therefore, the luminaire main body 1 is securely fixed to the ceiling surface C by the spring action of the spring member 10.

  When removing the lighting fixture, the decorative cover 71 is removed, and the lever provided on the adapter A is operated through the opening Cm1 of the center member Cm to release the engaging portion A1 of the adapter A, thereby removing the lighting fixture. be able to.

  When power is supplied to the lighting device 4 in a state where the lighting fixture is attached to the ceiling surface C, the light emitting elements 22 are energized through the substrate 21 in the light source unit 2, and each light emitting element 22 is lit. The light emitted from the light emitting element 22 to the front side is transmitted through the light source unit cover 3, diffused by the cover member 7, and transmitted to the outside. Therefore, the lower part is illuminated within a predetermined light distribution range.

At the same time, when the indirect light source unit 9 is energized, each light-emitting element 92 is turned on, and light emitted obliquely upward from the light-emitting element 92 is transmitted through the translucent cover 93 and mainly on the ceiling. The surface is irradiated. Therefore, the ceiling surface becomes bright and the feeling of brightness can be improved.
Further, the lighting state of the light source unit 2 and the indirect light source unit 9 is controlled by an optical sensor 8 that detects ambient brightness and outputs a detection signal.
In addition, by turning on the light emitting element 22a which is an auxiliary light source, it can be used as a night light.

  On the other hand, the heat generated from the light emitting element 22 is effectively conducted to the main body 1 because the back side of the substrate 21 is thermally coupled to the main body 1, and is radiated over a wide area. Moreover, since the protrusion parts 12, 13, and 14 are formed in the main body 1, the heat radiation area can be increased, and the heat radiation effect can be further enhanced. Furthermore, since the lighting device cover 5 is mounted and attached to the projecting portion 12 of the main body 1, heat is conducted from the main body 1 to the lighting device cover 5 to promote heat dissipation.

As described above, according to the present embodiment, the light emitting element 22a as the auxiliary light source and the infrared remote control signal light receiving element 25 are mounted on the same substrate as the substrate 21 on which the light emitting element 22 as the main light source is mounted. Further, it is possible to omit the lead wire or the like or to shorten the wiring length, and to simplify the wiring connection relationship.
Furthermore, since the channel setting switch 26 is mounted on the same substrate, the effect of simplifying the wiring connection relationship can be further enhanced.
In addition, since the optical sensor 8 is mounted on another substrate 81, it is possible to achieve an effect that it is easy to provide a plurality of types of lighting fixtures.

  In addition, this invention is not limited to the structure of the said embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary of invention. Moreover, the said embodiment is shown as an example and is not intending limiting the range of invention. For example, for example, a solid-state light-emitting element such as an LED or an organic EL can be applied as the light-emitting element. In this case, the number of light-emitting elements is not particularly limited.

1 ... main body, 2 ... light source part,
3 ... diffusion member (lens member), light source cover, 4 ... lighting device,
5 ... lighting device cover, 6 ... mounting part (adapter guide),
7 ... Cover member, 8 ... Optical sensor,
9 ... Indirect light source unit, 10 ... Spring member for attaching a lighting fixture,
21 ... substrate, 21a ... specific substrate,
22: Light emitting element (LED) as a main light source,
22a ... Light emitting element (LED) as auxiliary light source,
23 ... Power supply connection (connector), 25 ... Infrared remote control signal light receiving element,
26 ... Channel setting switch, 31 ... Projection,
33 ... Flat part, A ... Adapter,
C ... fixture mounting surface (ceiling surface), Cb ... wiring fixture (hook ceiling body),
Cm: Center member, Rc: Infrared remote control transmitter

Claims (4)

  1. A main body formed of a metal material having a mounting portion facing the wiring device installed on the device mounting surface substantially at the center;
    A substrate that is positioned around the mounting portion and has a mounting surface facing the front surface side, disposed on the main body, and having a power supply connection portion;
    A plurality of light emitting elements as main light sources mounted on the substrate;
    Light emission as an auxiliary light source mounted on the same substrate and arranged in a substantially radial direction from the power supply connection portion to the mounting portion as a center, and capable of dimming independently of the plurality of light emitting elements as the main light source With elements;
    The lighting fixture characterized by comprising.
  2.   On the same substrate as a substrate on which a plurality of light emitting elements as the main light source are mounted, a light emitting element as an auxiliary light source and an infrared remote control signal light receiving element for receiving a control signal transmitted from an infrared remote control transmitter are mounted. The lighting fixture according to claim 1.
  3.   The light-emitting element as the auxiliary light source has the same specifications as the light-emitting element as the main light source, The lighting fixture according to claim 1 or 2.
  4.   On the front side of the substrate, a diffusing member having a protruding portion facing a plurality of light emitting elements as a main light source is disposed, and the light emitting element as the auxiliary light source is separated from the protruding portion by a predetermined size. The lighting fixture according to any one of claims 1 to 3, wherein the lighting fixture is arranged in a manner.
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