JP6241563B2 - lighting equipment - Google Patents

Description

  Embodiments described herein relate generally to a lighting fixture using a light emitting element such as an LED as a light source.

  In general residential lighting fixtures, an annular fluorescent lamp is used as a main light source, and a cover member (sade) is provided so as to cover the lower side of the annular fluorescent lamp, and the external shape is configured in a round shape. It is popular.

  In recent years, with the increase in output, efficiency, and widespread use of light emitting elements such as LEDs, lighting fixtures for general homes such as those described above that can be expected to have a long life using light emitting elements as light sources have been developed. .

  On the other hand, as the temperature of a light emitting element such as an LED increases, the light output decreases and the useful life is shortened. For this reason, for lighting fixtures that use solid light emitting elements such as LEDs and EL elements as light sources, it is possible to suppress the temperature of the light emitting elements from rising in order to extend the service life or improve characteristics such as light emission efficiency. It is necessary.

  Conventionally, as a lighting fixture for a general house using LEDs as a light source, for example, a lighting device that controls lighting of LEDs is provided around an attachment portion to a hanging ceiling installed on a ceiling surface, and an outer periphery in the vicinity of this lighting device There are some in which a plurality of LEDs are arranged. This LED is arranged so as to emit light toward the outer peripheral side in the lateral direction, and the emitted light is reflected by a reflecting plate provided on the ceiling surface side to irradiate the front side.

Sharp / LED Ceiling Light [Search January 6, 2011] (http://www.sharp.co.jp/corporate/news/100819-a-2.html)

  However, when light emitting elements are used for both the main light source and the auxiliary light source, it is assumed that the number used at the time of lighting is often different. Therefore, there is a possibility that the mode of light emission must be changed.

  The present invention has been made in view of the above problems, and an object thereof is to obtain light emission that can withstand actual use even when a light emitting element is used as an auxiliary light source.

  A lighting fixture according to an embodiment of the present invention includes: a main body having an opening formed at a central portion thereof; a milky white diffusible cover member provided on the main body so as to cover a front side of the main body; the main body and the cover A translucent synthetic resin member provided on the front side of the main body between the members; a substrate provided between the main body and the synthetic resin member and surrounding the opening of the main body A main light source light emitting element provided on the substrate so that a light emitting direction is on the synthetic resin member side; and an outer peripheral side of the opening of the main body, and located on the main body side with respect to the synthetic resin member And an auxiliary light source light emitting element provided so that a light emission direction is on the synthetic resin member side, and the synthetic resin member includes the substrate, the main light source light emitting element, and the auxiliary light source light emitting element. Front Cover the Luo the entire surface.

  According to the embodiment of the present invention, it is possible to obtain light emission that can withstand actual use even when a light emitting element is used as an auxiliary light source.

It is a perspective view which shows the lighting fixture which concerns on 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 takes out and shows one board | substrate in the 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 the top view which showed typically the relative positional relationship at the time of attachment to the main body of a cover member.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 8. 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.

  The light source unit 2 includes a substrate 21 and a plurality of light emitting elements 22 mounted on the substrate 21 as described with reference to FIG. 6 (illustration of the light emitting elements 22 is omitted in FIG. 2). doing). 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.

  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 mounted in a plurality of rows along the circumferential direction of the circle-shaped substrate 21, in this embodiment, two rows on the inner peripheral side and the outer peripheral side. In addition, the LED package uses a light white color and a light bulb color, which are alternately arranged, and the adjacent light emitting elements 22 in each row are spaced at substantially equal intervals. It is arranged. Color adjustment is possible by adjusting the current flowing through the LED package of daylight white color and bulb color.

  In addition, the light emitting element 22a for nightlights is mounted on the specific board | substrate 21 (right side in FIG. 3). For this light emitting element 22a, the same LED package as that of the light bulb color in the main light source mounted in a circle shape is used.

  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 main body 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, as described with reference to FIG. It is integrally formed in a circle shape and is 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 protrusions in the circumferential direction facing the light emitting element 22 on the substantially circular inner peripheral portion and the outer peripheral portion. A strip 31 is formed. A U-shaped groove 32 is formed along the circumferential direction inside the protrusion 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 in a state of being accommodated in the U-shaped groove 32. .

  Further, a flat portion 33 extending in the width direction is formed from the protruding portions 31 so that the entire surface on the mounting surface side of the substrate 21 is covered.

  According to the lens member configured as described above, the light emitted from the light emitting element 22 is diffused and radiated mainly by the protrusion 31 in the inner circumferential direction and the outer circumferential direction as shown in FIG. Is done. 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.

  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 back surface of the substrate 21 is in contact with the main body 1. It may be a partial surface contact.

  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 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 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 74 (shown in FIG. 8 described later) provided on the cover member 7 is disposed in the concave portion 14 on the outer peripheral edge of the main body 1. It is attached by engaging with the metal fitting 75.

  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.

  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, the position control means is comprised.

  This position restricting means will be described with reference to FIG. FIG. 8 is a plan view schematically showing the relative positional relationship between the rotating cover member 7 side and the fixed main body 1 side.

  First, as shown in FIG. 8 (a), cover mounting brackets 74 are provided on the cover member 7 side at three locations on the back side peripheral edge portion. Further, a protruding pin 73 is provided near the center. On the other hand, on the main body 1 side, cover brackets 75 are provided at three locations on the outer peripheral edge, and the guide recess 54 of the lighting device cover 5 attached to the main body 1 is located.

  In the state shown in FIG. 8A, the protruding pin 73 is fitted in the guide recess 54 (see also FIG. 4). For this reason, the cover member 7 is disposed at an appropriate position. By rotating the cover member 7 clockwise from this state, as shown in FIG. The cover mounting bracket 74 is engaged with the cover receiving bracket 75 and the cover member 7 is mounted on the main body 1. In this state, the light receiving window 72 is positioned to face the electrical auxiliary component 62. For example, the infrared remote control signal receiving unit can receive a control signal from the infrared remote control transmitter.

  That is, in the mounting position where the light receiving window 72 is not positioned opposite to the electrical auxiliary component 62, the protruding pin 73 does not fit into the guide recess 54, so that the cover member 7 cannot be mounted on the main body 1. It is regulated.

  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 main body 1 is pushed up by hand from below until the engaging portion A1 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 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 diffusing member 3 and emitted to the front side. The light radiated to the front side is transmitted through the cover member 7 and irradiated outward.

  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.

  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.

  As described above, according to the present embodiment, since the substrate 21 is positioned around the mounting portion 6 and the mounting surface of the light emitting element 22 is disposed facing the front side, the configuration is simple. It becomes possible to provide the lighting fixture which can suppress the temperature rise of the light emitting element 22 effectively.

  The present invention is not limited to the configuration of each of the embodiments described above, and various modifications can be made without departing from the spirit of the invention. For example, a solid 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.

DESCRIPTION OF SYMBOLS 1 ... Main body, 2 ... Light source part, 3 ... Diffusing member (lens member), 4 ... Lighting apparatus, 5 ... Lighting apparatus cover, 6 ... Mounting part (adapter guide), 7 ... Cover member, 13 ... Stepped portion, 21 ... Substrate, 22 ... Light emitting element (LED), A ... Adapter, C ... Appliance mounting surface (ceiling surface), Cb. ..Wiring equipment (hook ceiling body)

Claims (2)

A body with an opening in the center;
A milky white cover member having diffusibility provided on the main body so as to cover the front side of the main body;
A translucent diffusion member provided between the main body and the cover member and provided on the front side of the main body;
A substrate provided between the main body and the diffusion member and surrounding the opening of the main body;
A main light source light emitting element provided on the substrate such that the light emission direction is on the diffusion member side;
An auxiliary light source light-emitting element provided on the outer peripheral side of the opening of the main body and positioned on the main body side of the diffusion member, and provided such that the light emission direction is on the diffusion member side;
Comprising
The diffusion member integrally covers the entire surface from the front surface of the substrate, the main light source light emitting element, and the auxiliary light source light emitting element, a position facing the main light source light emitting element, and a position facing the auxiliary light source light emitting element. Have different cross-sectional shapes, and diffuse at least light emitted from the main light source light emitting element,
The cover member further diffuses the light diffused by the diffusing member . The substrate, wherein the diffusion member and a common screw that is fastened to the main body, the illumination according to claim 1, characterized in that it is pressed and fixed between the diffusing member and the body Instruments.

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