JP2017107694A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture which achieves cost reduction and in which a light emitting element and a lighting circuit are effectively and efficiently mounted on a substrate, and wiring of the lighting circuit, the light emitting element and the side of a wiring device is facilitated.SOLUTION: A fixture body 21 has an attachment part 39 attached to a wiring device 12 installed on a fixture attaching surface 11. A substrate device 22 is provided with a substrate 42, a light emitting element 43 and a lighting circuit 44. The substrate 42 is arranged around the attachment part 39 and is structured such that: an opening part 48 is formed facing the attachment part 39; a wiring surface 47 is set only on one surface thereof; and another surface side thereof is attached to the fixture body 21. The light emitting element 43 is mounted on the wiring surface 47 in an outer peripheral side region 49 of the substrate 42. The lighting circuit 44 is set around the opening part 48 in an inner peripheral side region 50 of the substrate 42. The lighting circuit 44 includes: a surface mounting component 53 mounted on the wiring surface 47 of the substrate 42 in the inner peripheral side region 50; and a lead component 54 in which a lead line arranged on the other surface side of the substrate 42 in the inner peripheral side region 50 and inserted into the substrate 42, is electrically connected to the wiring surface 47.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a lighting fixture using a light emitting element.

  2. Description of the Related Art Conventionally, lighting fixtures such as ceiling lights, for example, are often provided with a substrate on which a light emitting element is mounted on the surface side of the fixture body and a lighting circuit on the back side of the fixture body.

  In some lighting fixtures, a lighting circuit is provided on a substrate on which a light emitting element is mounted. Thus, what provided the lighting circuit in the board | substrate which mounts a light emitting element did not fully consider how to provide efficiently and efficiently the components of a light emitting element and a lighting circuit with respect to a board | substrate. As a result, there is a part where nothing is provided in the inner peripheral area of the board, or mounting parts are arranged on both sides and wiring is required on both sides of the board, which increases the cost and size of the board. .

  Furthermore, the fixture body is attached to the wiring fixture installed on the fixture mounting surface, and the wiring fixture side and the lighting circuit are electrically connected, but the wiring fixture side and the lighting circuit are separated, or the wiring fixture side and the lighting circuit are not connected. If a light emitting element is disposed between them, wiring between the wiring device side, the lighting circuit, and the light emitting element cannot be easily performed.

JP-A-2015-185382

  The problem to be solved by the present invention is that the cost can be reduced and the light emitting element and the lighting circuit can be effectively and efficiently provided on the substrate, and the wiring device side and the lighting circuit and the light emitting element are also wired. It is to provide a lighting device that can be easily made.

  The lighting fixture of the embodiment includes a fixture main body and a substrate device. The appliance main body has an attachment portion that is attached to a wiring appliance installed on the appliance attachment surface. The substrate device includes a substrate, a light emitting element, and a lighting circuit. The substrate is disposed around the mounting portion, and an opening is provided to face the mounting portion, a wiring surface is provided on only one surface, and the other surface side is attached to the instrument body. The light emitting element is mounted on the wiring surface in the outer peripheral side region of the substrate. The lighting circuit is provided around the opening in the inner peripheral region of the substrate. The lighting circuit is a surface-mounted component that is mounted on the wiring surface in the inner peripheral region of the board, and a lead wire that is disposed on the other surface side in the inner peripheral region of the board and is inserted into the board is electrically connected to the wiring surface. Lead parts to be provided.

  According to the present invention, it is possible to realize a reduction in cost, and it is possible to effectively and efficiently provide a light emitting element and a lighting circuit on a substrate, and to facilitate wiring between the wiring device side and the lighting circuit and the light emitting element. Can be expected.

It is sectional drawing of a part of lighting fixture which shows one Embodiment. It is sectional drawing of a lighting fixture same as the above.

  Hereinafter, an embodiment will be described with reference to FIGS. 1 and 2.

  As shown in FIGS. 1 and 2, the luminaire 10 is a ceiling light that is attached to a wiring fixture 12 that is a hook ceiling installed on the fixture mounting surface 11 via an adapter 13.

  The wiring device 12 includes various types protruding from the device mounting surface 11 and having different heights and shapes. FIGS. 1 and 2 show a round type wiring device 12 having a high height.

  The adapter 13 has a cylindrical adapter main body 16, and a pair of L-shaped cross-section terminals that are electrically and mechanically connected to the wiring device 12 from the upper surface of the adapter main body 16 project. Yes. A pair of claw portions 17 protrude from the side surface of the adapter body 16. The claw portion 17 is urged so as to protrude from the adapter body 16 by the urging member, and the claw portion 17 is moved into the adapter body 16 by pressing a release button 18 disposed on the lower surface of the adapter body 16. Can be made. An adapter cable electrically connected to a pair of terminals is drawn out from the adapter 13, and an adapter connector provided at the tip of the adapter cable is electrically connected to the lighting fixture 10 side.

  The lighting fixture 10 includes a fixture body 21. A substrate device 22, a light source cover 23 and a circuit cover 24 that cover the substrate device 22, a shade 25 that covers the entire lower surface side of the device body 21, and the like are disposed on the lower surface side that is the surface side of the device body 21.

  The instrument body 21 is made of metal and has a disk shape. An annular substrate mounting portion 28 for mounting the substrate device 22 is formed on the instrument main body 21, and the inner and outer peripheral sides of the substrate mounting portion 28 are bent and protruded to the upper surface side that is the back side of the instrument main body 21, respectively. An inner peripheral bent portion 29 and an outer peripheral bent portion 30 are formed.

  The board mounting portion 28 is formed in a flat and annular shape, and protrudes most downward from the instrument body 21.

  An insertion port 31 through which the wiring device 12 and the adapter 13 can be inserted is formed at the center of the inner peripheral bending portion 29, that is, the center of the device body 21. The peripheral edge portion of the insertion port 31 is configured as an upper locking portion 32 that can be locked to the claw portion 17 of the adapter 13. A lighting circuit accommodating portion 33 is formed in an annular shape on the lower surface side of the inner peripheral side bent portion 29.

  The outer peripheral side bent portion 30 protrudes above the inner peripheral side bent portion 29. A shade fitting portion 30a for fitting the shade 25 is formed on the outer peripheral edge of the outer peripheral side bent portion 30. On the side of the lower surface of the outer peripheral bending portion 30, there are attached a plurality of shade mounting brackets for removably mounting the shade 25.

  An attachment member 34 as an adapter guide to be attached to the adapter 13 is attached to the center of the instrument main body 21, that is, the inner peripheral bending portion 29. The attachment member 34 has an insulating property. The mounting member 34 includes a cylindrical portion 35 formed in a cylindrical shape, and a lower locking portion 36 is provided in an annular shape on the inner periphery of the cylindrical portion 35. An annular insulating portion 37 that covers the lower surface side of the inner circumferential bent portion 29 is formed on the upper portion of the cylindrical portion 35. At the lower end of the cylindrical portion 35, a protruding portion 38 that protrudes downward from the substrate mounting portion 28 is formed. The attachment member 34 includes support portions such as ribs and bosses that support the inner peripheral side of the substrate device 22. The attachment member 34 and the locking portion 32 of the appliance main body 21 are configured as an attachment portion 39 for attaching to the wiring appliance 12 via the adapter 13 according to the height of the wiring appliance 12.

  A cushioning material that is in contact with the fixture mounting surface 11 when the lighting fixture 10 is installed is attached to the back surface of the fixture body 21.

  The substrate device 22 includes a substrate 42, a plurality of light emitting elements 43 provided on the substrate 42, and a lighting circuit 44.

  The substrate 42 is a single-sided wiring substrate in which, for example, an insulating material is used as a base and a wiring pattern is formed only on one surface thereof. That is, the surface 42a that is one surface of the substrate 42 is a wiring surface 47 on which a wiring pattern is formed, and the back surface 42b that is the other surface of the substrate 42 and opposite to the wiring surface 47 is formed with a wiring pattern. There is no aspect.

  The substrate 42 is formed in an annular shape having an opening 48 in the center. For example, the substrate 42 may be integrally provided in an annular shape, or may be divided into a plurality of portions in the circumferential direction so that these are combined in an annular shape. When the substrate 42 is divided into a plurality in the circumferential direction, the divided substrates may be configured to be electrically connected to each other by connector connection or the like when the divided substrates are combined in an annular shape.

  The substrate 42 includes an outer peripheral side region 49 and an inner peripheral side region 50. A plurality of light emitting elements 43 are mounted on the wiring surface 47 in the outer peripheral side region 49 of the substrate 42, and a lighting circuit 44 is provided around the opening 48 in the inner peripheral side region 50 of the substrate 42. A wiring pattern for mounting a plurality of light emitting elements 43 is formed in the outer peripheral region 49 of the wiring surface 47 of the substrate 42, and the lighting circuit 44 is configured in the inner peripheral region 50 of the wiring surface 47 of the substrate 42. The wiring pattern is formed.

  The substrate 42 is mounted such that the opening 48 is fitted to the outer periphery of the mounting member 34 and the back surface 42b of the outer peripheral side region 49 is in contact with the substrate mounting portion 28 of the instrument main body 21.

  As the light emitting element 43, for example, a surface mount type LED is used. The plurality of light emitting elements 43 are arranged in a plurality of concentric rows on the outer peripheral side region 49 of the wiring surface 47 of the substrate 42, and are mounted at predetermined intervals along the circumferential direction in each row. . In this embodiment, it is arranged in two rows, but it may be three or more rows or one row. The light emitting element 43 is not limited to an LED, and may be another light emitting element such as an organic EL.

  The lighting circuit 44 is provided in the inner peripheral side region 50 of the substrate 42. The lighting circuit 44 rectifies and smoothes the AC power input through the wiring device 12 and the adapter 13, and converts the output from the rectifier circuit into a predetermined DC power source by the switching operation of the switching element to the light emitting element 43. A converter to be supplied and a control unit that inputs a dimming signal and controls the switching operation of the switching element are provided.

  The lighting circuit 44 includes a plurality of surface mount components 53 and a plurality of lead components 54 for constituting the lighting circuit 44.

  The surface-mounted component 53 is a chip component having a low height such as a transistor, a resistor, and a capacitor and not including a lead wire. The surface-mounted component 53 is mounted on the wiring pattern on the wiring surface 47 and soldered and connected in the inner peripheral side region 50 of the substrate.

  The lead component 54 is a component having a high height, such as an electrolytic capacitor or an inductor, and includes a plurality of lead wires protruding from the lead component body. The lead component 54 is an inner peripheral side region 50 of the substrate 42, the lead component main body is disposed on the back surface 42b side of the substrate 42, and the lead wire is a wiring surface 47 that is on the surface 42a side from the back surface 42b side of the substrate 42. And connected to the wiring pattern of the wiring surface 47 by soldering. The lead component main body of the lead component 54 is accommodated in the lighting circuit accommodating portion 33 of the instrument main body 21.

  The lighting circuit 44 has an input connector to which an adapter connector of an adapter cable drawn from the adapter 13 is connected.

  The substrate device 22 may include a remote control light receiving unit that receives a remote control signal (dimming signal) from a remote control, or a nightlight. The remote control light-receiving part is a surface-mounted component, and is mounted on the wiring pattern of the wiring surface 47 and soldered as a part of the lighting circuit 44 in the inner peripheral side region 50 of the substrate 42. The night light is, for example, a surface-mounted LED, and may be mounted anywhere on the wiring surface 47.

  The light source cover 23 is formed in an annular shape from a resin material having insulating properties and translucency. As the resin material, for example, transparent polycarbonate is used.

  The light source cover 23 includes a cover portion 57 that holds the substrate 42 between the substrate mounting portion 28 of the instrument main body 21 and a lens portion 58 that faces the light emitting element 43.

  The cover part 57 is formed in an annular shape and contacts the wiring surface 47 of the substrate 42.

  The lens portion 58 has an incident surface 59 having a concave cross section on the back side facing the light emitting element 43, and an exit surface 60 having a convex cross section on the surface side opposite to the incident surface 59. The lens unit 58 has a light distribution characteristic that diffuses light from the light emitting element 43 from the instrument center side to the instrument outer diameter side.

  The circuit cover 24 is formed in an annular shape from a resin material having insulating properties and light shielding properties.

  The circuit cover 24 is attached by fitting the inner peripheral side to the protruding portion 38 of the mounting member 34, and the outer peripheral side is attached to the instrument main body 21 via the cover part 57 of the light source cover 23. The circuit cover 24 covers the inner peripheral side region 50 of the wiring surface 47 of the substrate 42 and the surface mounting component 53 of the lighting circuit 44 mounted in the inner peripheral side region 50. The projecting dimension of the circuit cover 24 from the substrate 42 is the same as or substantially the same as the lens portion 58 of the light source cover 23.

  For example, the light source cover 23 and the circuit cover 24 are formed by inserting a plurality of substantially L-shaped claws projecting from the back surfaces of the covers 23 and 24 into attachment holes provided in the instrument body 21, respectively. , 24 may be locked to the instrument main body 21 and screws for inserting the covers 23, 24 may be screwed to the instrument main body 21 and fixed.

  Further, when the remote control light receiving unit and the nightlight are mounted on the inner peripheral side region 50 of the wiring surface 47 of the substrate 42, the circuit cover 24 is provided with a notch corresponding to the mounting position, and the circuit cover 24 An extension may be provided from the light source cover 23 so as to cover the notch.

  The light source cover 23 and the circuit cover 24 may be integrally formed. In this case, only the portion of the circuit cover 24 may be configured to have a light shielding property by applying a light shielding material or the like.

  The shade 25 is integrally formed of a milky white resin material having translucency and diffusibility. The shade 25 is formed in a shape in which the upper surface side is opened and the lower surface side swells in a dome shape. On the inner peripheral edge of the opening on the upper surface side of the shade 25, an attachment step portion is formed that is detachably attached to the shade attachment fitting of the instrument body 21 by the rotation of the shade 25. The entire lower surface of the instrument main body 21 is covered by the shade 25 attached to the instrument main body 21.

  In order to install the lighting fixture 10 on the fixture mounting surface 11, first, the adapter 13 is attached to the wiring fixture 12. The adapter 13 attached to the wiring device 12 is electrically connected to the wiring device 12 and mechanically held, and the rotation with respect to the wiring device 12 is also restricted.

  The instrument body 21 is lifted, the insertion port 31 and the attachment member 34 are aligned with the periphery of the adapter 13, and the instrument body 21 is pushed up.

  By pushing up the instrument body 21, the attachment part 39 of the instrument body 21 is hooked onto the claw part 17 of the adapter 13 and attached. In the present embodiment, since the wiring device 12 is a round type with a high height, the locking portion 36 of the attachment member 34 is hooked onto the claw portion 17 of the adapter 13 and attached. In this attachment state, the cushion material is compressed between the instrument body 21 and the instrument attachment surface 11, and the cushioning material prevents the lighting instrument 10 from rattling against the instrument attachment surface 11.

  Subsequently, the adapter cable of the adapter 13 is electrically connected to the input connector of the lighting circuit 44, the shade 25 is put on the lower surface of the instrument body 21, and the shade 25 is rotated, so that the shade 25 is attached to the shade of the instrument body 21. Attach to the mounting bracket. Thereby, installation of the lighting fixture 10 is completed.

  On the other hand, when removing the luminaire 10, remove the shade 25, remove the adapter cable of the adapter 13 from the input connector of the lighting circuit 44, and operate the release button 18 of the adapter 13 to attach the claw portion 17 to the adapter body 16 Move in. As a result, the attachment portion 39 is detached from the claw portion 17 of the adapter 13, and the instrument body 21 can be moved downward, and the instrument body 21 can be detached from the adapter 13.

  When the lighting fixture 10 is installed, the lighting circuit 44 converts the AC power into a predetermined DC power and supplies the light to the light emitting element 43 by turning on the wall switch or the remote control. To do. The light from the light emitting element 43 enters the lens portion 58 of the light source cover 23, and the light whose light distribution is controlled by the lens portion 58 passes through the shade 25 and is irradiated to the illumination space.

  In the board device 22, since the light emitting element 43 and the lighting circuit 44 are provided together on the same board 42, the number of parts can be reduced.

  In addition, the substrate cost can be reduced by using a single-sided wiring board in which the wiring surface 47 is provided only on one surface as the substrate 42.

  Furthermore, in consideration of arranging a plurality of light emitting elements 43 on the substrate 42 and the spread of light from the light emitting elements 43, the light emitting elements 43 are often mounted on the outer peripheral region 49 of the substrate 42. In general, a portion where nothing is provided around the opening 48 is generated in the inner peripheral side region 50 of the inner peripheral side region 50, but in this embodiment, the opening 48 is formed in the inner peripheral side region 50 of the substrate 42. Since the lighting circuit 44 is provided around, the light-emitting element 43 and the lighting circuit 44 can be effectively and efficiently provided on the substrate 42.

  Further, the small surface mounting component 53 of the lighting circuit 44 is mounted on the wiring surface 47 in the inner peripheral region 50 of the substrate 42, and the large lead component 54 of the lighting circuit 44 is mounted in the inner peripheral region 50 of the substrate 42. Since it is disposed on the surface opposite to the wiring surface 47, it is possible not to block the light from the light emitting element 43 toward the center of the instrument, and the brightness of the shade 25 can be made uniform.

  Further, since the lighting circuit 44 is provided around the opening 48 in the inner peripheral side region 50 of the substrate 42, the wiring device 12 side and the lighting circuit 44 are located close to each other, and the wiring device 12 side and the lighting circuit 44 are connected. Wiring can be done easily.

  As described above, according to the lighting apparatus 10 of the present embodiment, it is possible to reduce the cost by using a single-sided mounting substrate for the substrate 42, and to effectively and efficiently provide the light emitting element 43 and the lighting circuit 44 on the substrate 42. In addition, wiring between the wiring device 12 side and the lighting circuit 44 and the light emitting element 43 can be easily performed.

  Further, when the light emitting element 43 and the surface mounting component 53 of the lighting circuit 44 are mounted on the same wiring line 47 of the substrate 42, the light from the light emitting element 43 may cause light deterioration of the surface mounting component 53. By covering the surface mount component 53 of the circuit 44 with the circuit cover 24 having a light shielding property, it is possible to prevent the surface mount component 53 from being deteriorated by light.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

10 Lighting equipment
11 Instrument mounting surface
12 Wiring equipment
21 Instrument body
22 Board equipment
23 Light source cover
24 Circuit cover
39 Mounting part
42 PCB
43 Light emitting element
44 Lighting circuit
47 Wiring surface
48 opening
49 Outer peripheral area
50 Inner circumference area
53 Surface mount components
54 Lead parts

Claims (2)

An instrument body having an attachment portion attached to a wiring instrument installed on the instrument attachment surface;
A substrate that is disposed around the mounting portion, has an opening facing the mounting portion, has a wiring surface only on one surface, and the other surface is attached to the instrument body, and an outer peripheral side of the substrate A light emitting element mounted on the wiring surface in a region, and a lighting circuit provided around the opening in an inner peripheral region of the substrate, and the lighting circuit is connected to the wiring in the inner peripheral region of the substrate. A surface mount component mounted on a surface, and a substrate device having a lead component disposed on the other surface side in the inner peripheral region of the substrate and electrically connected to the wiring surface by a lead wire inserted into the substrate ;
The lighting fixture characterized by comprising. A translucent light source cover that covers the wiring surface in an outer peripheral side region of the substrate;
A light-shielding circuit cover that covers the wiring surface in an inner peripheral region of the substrate;
The lighting fixture according to claim 1, comprising:

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