JP2015037042A - Lighting device and power source device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device which secures transmission performance and reception performance even if an antenna part is buried in a structure.SOLUTION: A lighting device 100 has a transmission function or a reception function of a radio signal and includes: a device body 110 having a light source 125; a first housing 120; and a second housing 130 disposed at the exterior of the first housing 120. The first housing 120 covers a power supply circuit that supplies electric power to the light source 125. The second housing 130 covers an antenna part which transmits or receives the radio signal.

Description

  The present invention relates to a lighting fixture, and more particularly to a lighting fixture or the like having a wireless communication function.

  Conventionally, as embedded lighting fixtures, for example, embedded ceiling lighting fixtures that are embedded in the ceiling and emit light downward, such as downlights and spotlights, or embedded in the ground Underground lighting fixtures that emit light upward are known.

  On the other hand, when wirelessly controlling a lighting fixture, various methods have been proposed to maintain a good communication state (see, for example, Patent Document 1).

JP 2006-80007 A

  By the way, when the embedded lighting fixture is wirelessly controlled, it is desirable that the antenna used for the wireless control is embedded in the structure from the aesthetic point of view. Here, in an embedded lighting fixture, circuit components and the like are generally embedded in a structure in a state of being covered with a housing.

  Here, it is desirable that the antenna is also covered with a housing from the viewpoint of protection of the antenna, but in such a case, securing the transmission performance or reception performance of the antenna becomes a problem.

  The present invention provides a lighting fixture or the like that can easily ensure the transmission performance or reception performance of an antenna unit even when the antenna unit is embedded in a structure.

  In order to solve the above-described problem, a lighting fixture according to one aspect of the present invention is a lighting fixture having a wireless signal transmission function or a reception function, a fixture main body having a light source, a first housing, A second housing disposed outside the first housing, the first housing covers a power supply circuit that supplies power to the light source, and the second housing An antenna unit that transmits or receives a radio signal is covered.

  For example, the second casing may further cover a radio control unit that controls transmission or reception of the radio signal by the antenna unit.

  Further, for example, the first housing may further cover a radio control unit that controls transmission or reception of the radio signal by the antenna unit.

  For example, the first housing may be made of metal.

  For example, the second casing may be made of an insulating material.

  In addition, for example, the first casing includes a main body that covers the power supply circuit, and a plate-shaped portion that extends from a part of the main body, and the second casing is the plate-shaped It may be arranged in the part.

  A power supply device according to one embodiment of the present invention is a power supply device that supplies power to a light source of a lighting fixture having a wireless signal transmission function or a reception function, and includes a first housing and the first housing. A second casing disposed outside the body, the first casing covering a power supply circuit that supplies power to the light source, and the second casing transmits the radio signal or Cover the receiving antenna.

  For example, the second casing may further cover a radio control unit that controls transmission or reception of the radio signal by the antenna unit.

  Further, for example, the first housing may further cover a radio control unit that controls transmission or reception of the radio signal by the antenna unit.

  The lighting apparatus and the like according to the present invention can easily ensure transmission performance or reception performance even when the antenna portion is embedded in a structure.

FIG. 1 is a diagram illustrating an appearance of a lighting fixture according to Embodiment 1. FIG. FIG. 2 is a view of the luminaire according to Embodiment 1 as viewed from the side opposite to the light irradiation side. FIG. 3 is a cross-sectional view of a state in which the lighting fixture according to Embodiment 1 is attached to the ceiling. FIG. 4 is a block diagram illustrating a functional configuration of the lighting apparatus according to Embodiment 1. FIG. 5 is a schematic diagram showing the internal structure of the second housing. FIG. 5A is a top view and a side view of the internal structure of the second housing when the second housing covers all of the antenna unit and the wireless control unit. FIG. 5B is a top view and a side view of the internal structure of the second housing when the second housing covers part of the antenna unit and the wireless control unit. FIG. 6 is a diagram schematically illustrating the first housing and the second housing according to the second embodiment. 6A is a view of the first housing as viewed from the upper surface side, and FIG. 6B is a view of the first housing 120 as viewed from the side surface. (C) is the figure which looked at the 1st case from the undersurface side (light emitting side). FIG. 7 is an enlarged view of the peripheral portion of the notch. (A1) and (b1) in FIG. 7 are enlarged views of the periphery of the notch when the second casing is not attached, and (a1) in FIG. 7 shows the first casing on the upper surface side. FIG. 7B1 is a diagram of the first housing as viewed from the side surface side. (A2) and (b2) in FIG. 7 are enlarged views of the periphery of the notch when the second casing is attached, and (a2) in FIG. 7 shows the first casing on the upper surface side. (B2) of FIG. 7 is a view of the first housing as seen from the side surface side. FIG. 8 is a diagram illustrating an example of a plate-like portion that holds the second housing in a rotatable state. FIG. 8A is a diagram showing a state before rotation of the second housing, and FIG. 8B is a diagram showing a state after rotation of the second housing. FIG. 9 is a block diagram illustrating a functional configuration of the lighting fixture when the wireless control unit is provided in the first housing. FIG. 10 is a diagram illustrating another example of the arrangement of the second housings in the same configuration as FIG. FIG. 10A is a view of the first housing as viewed from the upper surface side, and FIG. 10B is a view of the first housing as viewed from the side surface. c) is a view of the first housing as viewed from the lower surface side (light emission side).

(Knowledge that became the basis of the present invention)
When wirelessly controlling an embedded lighting fixture, the antenna used for the wireless control must be embedded in the structure so that the user cannot see the antenna when attached to the structure from the viewpoint of aesthetic appearance. Is desirable.

  Here, in an embedded lighting fixture, a part of the lighting fixture is embedded in the ceiling, and circuit components embedded in the ceiling are housed in a housing in order to prevent malfunction and failure due to dust or the like. The In particular, a power supply circuit that supplies power to a light source is generally housed in a metallic casing that is a non-combustible material from the viewpoint of preventing accidents such as ignition.

  Therefore, from the viewpoint of aesthetic appearance and manufacturing cost, it is desirable that the antenna is mounted on the same substrate as the power supply circuit and is housed in a metal casing in which the power supply circuit is housed.

  On the other hand, the antenna needs to be arranged at a position where radio signal transmission / reception performance can be secured. In general, an antenna has directivity, and the directivity of the antenna varies depending on the structure around the antenna and the influence of an object disposed around the antenna.

  The antenna arrangement is an important element in wireless control. However, when the antenna is housed in a metal casing as described above, radio waves are reflected by the metallic casing. It is difficult to ensure performance.

  The present invention has been made by the inventors in view of such a situation.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  Note that each of the embodiments described below shows a specific example of the present invention. The numerical values, shapes, materials, constituent elements, arrangement positions and connection forms of the constituent elements, steps, order of steps, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept are described as optional constituent elements. Each figure is a schematic diagram and is not necessarily illustrated exactly. Therefore, there is a portion that does not exactly match in each figure.

(Embodiment 1)
First, the outline | summary of the lighting fixture which concerns on Embodiment 1 is demonstrated.

  FIG. 1 is a diagram illustrating an appearance of a lighting fixture according to Embodiment 1. FIG.

  FIG. 2 is a view of the luminaire according to Embodiment 1 as viewed from the side opposite to the light irradiation side.

  As shown in FIGS. 1 and 2, the lighting fixture 100 is disposed outside the fixture main body 110 having a wireless signal transmission function or a reception function, a first casing 120, and the first casing 120. And a second housing 130. The first housing 120 covers a power supply circuit that supplies power to the light source. The first housing 120 includes a main body portion 120b and a plate-like portion 120a. The second housing 130 covers an antenna unit that transmits or receives a radio signal. The luminaire 100 includes a mounting spring 140 and a mounting portion 150.

  The luminaire 100 according to Embodiment 1 is an embedded luminaire such as a downlight that illuminates light downward (corridor, wall, etc.) by being embedded in a ceiling 190 of a house, for example. is there. The luminaire 100 has a wireless signal transmission function or a reception function, and is attached to an embedded hole 155 provided in the ceiling 190, for example, as shown in FIG. FIG. 3 is a cross-sectional view of the lighting fixture 100 attached to the ceiling 190.

  As shown in FIG. 3, in a state where the lighting fixture 100 is attached to the embedding hole 155, the first housing 120, the second housing 130, and the attachment portion 150 are embedded in the space behind the ceiling. It is. A part of the instrument body 110 is also embedded in the space behind the ceiling. That is, the luminaire 100 is attached to the embedding hole 155 in a state where at least a part is embedded in the space in the structure.

  Hereinafter, the configuration of the lighting apparatus 100 will be described in detail with reference to FIGS.

  The luminaire 100 is a luminaire having a wireless signal transmission / reception function. The user can wirelessly control (turn on and off) the lighting fixture 100 using a remote controller or the like.

  The instrument body 110 includes a substantially frustoconical housing and a light source 125 provided inside the housing. A plurality of radiating fins 135 projecting outward are provided on the outer peripheral surface of the housing of the instrument main body 110. An attachment spring 140 is attached to the outer peripheral surface of the instrument main body 110.

  The light source 125 is a light emitting module having a light emitting element, and emits predetermined light. In the first embodiment, the light source 125 is a COB (Chip On Board) type light emitting module in which an LED chip is directly mounted on a substrate, but is not limited to such a configuration. For example, the light source 125 may be a light emitting module in which a so-called SMD (Surface Mount Device) type LED element is used as a light emitting element. Specifically, the SMD type LED element is a package type LED element in which an LED chip is mounted in a resin-molded cavity, and a phosphor-containing resin is sealed in the cavity. The light emitting element included in the light source 125 may be, for example, a semiconductor light emitting element such as a semiconductor laser, or another solid light emitting element such as an EL element such as an organic EL (Electro Luminescence) or an inorganic EL.

  The attachment spring 140 is fixed to the outer peripheral surface of the appliance main body 110 and is biased outward, and is used for attaching the lighting fixture 100 (the appliance main body 110) to the embedded hole 155.

  The first housing 120 covers a power supply circuit that supplies power to the light source 125. In other words, the first housing 120 houses the power supply circuit. The first housing 120 is typically made of a metal such as iron or aluminum from the viewpoint of preventing accidents such as ignition of the power supply circuit. The first housing 120 includes a main body portion 120b and a plate-like portion 120a.

  The main body 120b is a substantially rectangular parallelepiped housing that houses a power supply circuit.

  The plate-like portion 120a is a portion extending from a part of the main body portion 120b in the first housing 120. The plate-like portion 120a is provided with an opening into which a screw is inserted in order to fix the first housing 120 to the surface of the structure (building material). As shown in FIG. 3, the plate-like portion 120 a is screwed in a state where the main surface is in contact with the ceiling 190.

  The second casing 130 is a substantially rectangular parallelepiped casing and covers the antenna unit and the radio control unit. In other words, the second housing 130 accommodates the antenna unit and the radio control unit. The second housing 130 is made of an insulating material such as resin so as not to hinder transmission / reception of radio signals of the antenna unit. Note that the size of the second housing 130 is smaller than the size of the first housing 120.

  In the first embodiment, the second housing 130 is disposed on the plate-like portion 120a of the first housing 120, but may be disposed in other places. The second housing 130 is not necessarily provided in contact with the first housing 120.

  The attachment portion 150 is connected to a cable 145 (shown only in FIG. 1) that is a source of AC power. The attachment unit 150 supplies AC power acquired from the cable 145 to the power supply circuit in the first housing 120. The attachment portion 150 is provided at one end of the first housing 120 in the longitudinal direction.

  The cable 160 is a cable for the power circuit in the first housing 120 to supply power to the light source 125 in the instrument main body 110.

  The cable 170 is a cable for the power supply circuit in the first housing 120 to supply DC power to the wireless control unit in the second housing 130.

  In the first embodiment, the luminaire 100 is inserted into the embedding hole 155 from the attachment portion 150. That is, the luminaire 100 is inserted into the embedding hole 155 from one end in the longitudinal direction of the first housing 120.

  Next, the functional configuration of the lighting fixture 100 and the structure inside the second housing 130 will be described.

  FIG. 4 is a block diagram illustrating a functional configuration of the lighting fixture 100.

  The lighting fixture 100 includes a power supply device 200 having a power supply circuit 220, an antenna unit 230, a wireless control unit 210, and a lighting circuit 105, and a fixture main body 110 having a light source 125.

  The power supply circuit 220 supplies power to the light source 125. Specifically, the power supply circuit 220 converts AC power supplied from the cable 145 to the attachment unit 150 into DC power suitable for driving the lighting circuit 105. The lighting circuit 105 operates with DC power supplied from the power supply circuit 220 and outputs power for causing the light source 125 to emit light through the cable 160. Note that the power supply circuit 220 also supplies DC power to the wireless control unit 210.

  The power supply circuit 220 includes, for example, a diode bridge type rectifier circuit that converts AC power into DC power and a DC-DC converter. The power supply circuit 220 may be realized by a single IC having functions equivalent to those of the rectifier circuit and the DC-DC converter. The power supply circuit 220 may have other circuit configurations. In addition, the power supply circuit 220 is accommodated in the 1st housing | casing 120 (main-body part 120b) as mentioned above.

  The lighting circuit 105 is a circuit for driving the light source 125 and is accommodated in the first housing 120. Note that the lighting circuit 105 may be accommodated in the instrument main body 110. Further, the lighting circuit 105 may be configured as a part of the power supply circuit 220.

  The antenna unit 230 and the radio control unit are accommodated in the second housing 130. FIG. 5 is a schematic diagram showing the internal structure of the second housing 130. The antenna unit 230 is a pattern antenna for transmitting and receiving radio signals. That is, as shown in FIG. 5A, the antenna unit 230 is a conductive pattern mounted on the substrate 240 in the first embodiment. Since the antenna unit 230 is mounted on the substrate as a pattern antenna, the antenna unit 230 can be reduced in size.

  The antenna unit 230 may be any antenna that performs at least one of radio signal transmission and reception, and is not limited to a pattern antenna. For example, the antenna unit 230 may be anything that can transmit or receive a radio signal, such as a chip antenna. The antenna unit 230 is covered with the second housing 130 as shown in FIG.

  The radio control unit 210 is a so-called radio module (integrated circuit) that controls transmission or reception of radio signals by the antenna unit 230. Specifically, the wireless control unit 210 controls the lighting circuit 105 based on the wireless signal received by the antenna unit 230 from the remote controller, and turns on or off the light source 125. In addition, the radio control unit 210 causes the antenna unit 230 to transmit a radio signal.

  The wireless control unit 210 operates with DC power supplied from the power supply circuit 220 via the cable 170 connected to the connector 235. In the first embodiment, since the radio control unit 210 and the antenna unit 230 are mounted on the same substrate 240, it is not necessary to use an expensive cable for high frequency as the cable 170.

  In Embodiment 1, the frequency band of a radio signal transmitted or received by antenna section 230 is a UHF (Ultra High Frequency) band or a SHF (Super High Frequency) band.

  In the first embodiment, the radio control unit 210 performs communication using ZigBee (registered trademark), which is one of WPAN (Wireless Personal Area Network) standards. Note that the communication method of the wireless control unit 210 is not limited to this. The wireless control unit 210 may perform communication using Bluetooth (registered trademark) or a wireless LAN (Local Area Network).

  The wireless control unit 210 is covered with the second casing 130 as shown in FIG.

  Note that the second housing 130 does not necessarily need to cover the entire antenna unit 230 and the radio control unit 210, as shown in FIG.

  For example, as shown in FIG. 5B, the second casing 130 may be used as a cover for the antenna unit 230 and the radio control unit 210. The second housing 130 and the substrate 240 may cover the antenna unit 230 and the wireless control unit 210.

  Further, as shown in FIG. 3, a gap may be provided between the main body 120 b and the top surface of the ceiling in a state where the main body 120 b is attached to the ceiling 190. In this case, the second housing 130 is attached to the lower side of the main body 120b, and the second housing 130 is disposed in the gap, so that space saving can be realized.

  As described above, in the lighting fixture 100, the antenna unit 230 and the radio control unit 210 are covered with the resin-made second housing 130 provided outside the metal-made first housing 120.

  Thereby, since the radio signal transmitted / received by the antenna unit 230 is difficult to be reflected, the transmission / reception performance of the antenna unit 230 can be ensured. In addition, since the antenna unit 230 is covered by the second housing 130, the antenna is provided on the inner peripheral surface of the embedded hole 155 and other structures (at the back of the ceiling) at the time of construction (when the lighting fixture 100 is attached). The risk of damage due to contact with the pipes).

  Further, the distance between the antenna unit 230 and the radio control unit 210 and the power supply circuit 220 is maintained as compared with the case where the antenna unit 230 and the radio control unit 210 are covered with the first housing 120. For this reason, the influence of noise from the power supply circuit 220 on the antenna unit 230 and the wireless control unit 210 is reduced.

  In the first embodiment, the second housing 130 is disposed on the plate-like portion 120 a of the first housing 120. The plate-like portion 120a is a portion of the first housing 120 that corresponds to the other end in the longitudinal direction of the first housing 120 (the end opposite to the one end). Since the first casing 120 is inserted into the embedding hole 155 from one end in the longitudinal direction, the second casing 130 is provided at a position corresponding to the other end in the longitudinal direction of the first casing 120. Thus, there is an effect that the second casing 130 does not hinder the insertion when the first casing 120 is inserted into the embedding hole. That is, the workability of the lighting fixture 100 is improved by providing the second housing 130 at a position corresponding to the other end in the longitudinal direction of the first housing 120.

(Embodiment 2)
In the second embodiment, the first housing 120 will be described in a different form from the first embodiment. In the second embodiment, description of components that are substantially the same as those in the first embodiment may be omitted.

  FIG. 6 is a diagram schematically showing the first casing 120 and the second casing 130 according to the second embodiment. 6A is a diagram of the first housing 120 viewed from the top surface side, and FIG. 6B is a diagram of the first housing 120 viewed from the side surface side. (C) is a view of the first casing 120 as seen from the lower surface side (light emission side). Here, the lower surface of the first housing 120 is a surface facing the ceiling 190 in a state where the first housing 120 is attached to the ceiling 190 as shown in FIG. The upper surface of the first housing 120 is the surface opposite to the lower surface. Moreover, in (b) and (c) of FIG. 6, description about the attaching part 150 is abbreviate | omitted.

  As shown in FIG. 6, the first housing 120 according to the second embodiment includes a main body portion 120b, a plate-like portion 120a, and a plate-like portion 120c.

  The main body 120 b covers the power supply circuit 220. Similarly to the first embodiment, the power supply circuit 220 converts AC power supplied to the attachment unit 150 into DC power, and outputs the converted DC power to the instrument main body 110 through the cable 160.

  The plate-like portion 120c is a portion corresponding to one end in the longitudinal direction of the main body portion 120b of the first housing 120, and a plate-like portion extending from a part of the main body portion 120b in the first housing 120. It is.

  The plate-like portion 120c is provided with an attachment portion 150, and the first housing 120 is inserted from the plate-like portion 120c into the embedding hole 155 and buried in the space behind the ceiling.

  The plate-like portion 120a is a portion corresponding to the other end in the longitudinal direction of the main body portion 120b of the first housing 120, and is a plate-like portion extending from a part of the main body portion 120b in the first housing 120. Part.

  On the upper surface of the plate-like part 120a, a second housing 130 is disposed so as to cover the antenna part 230 and the radio control part 210 (not shown). Here, when the plate-shaped portion 120a is viewed from the upper surface side or the lower surface side, that is, when viewed from the direction perpendicular to the main surface of the plate-shaped portion 120a, A notch 250 is provided. That is, as shown in FIG. 6C, when the first housing 120 is viewed from the lower surface side, the second housing 130 can be visually recognized through the cutout portion 250.

  Hereinafter, the notch 250 will be described in detail.

  FIG. 7 is an enlarged view of the peripheral portion of the notch 250. FIGS. 7A1 and 7B1 are enlarged views around the notch 250 when the second housing 130 is not attached, and FIG. 7A1 is the first housing 120. FIG. FIG. 7B1 is a diagram of the first housing 120 viewed from the side surface side. On the other hand, (a2) and (b2) in FIG. 7 are enlarged views of the periphery of the notch 250 when the second casing 130 is attached, and (a2) in FIG. 7 is the first casing. 7 is a view of the body 120 as viewed from the upper surface side, and (b2) of FIG. 7 is a view of the first housing 120 as viewed from the side surface side.

  As shown in FIG. 7 (a1), the notch 250 is provided at the corner of the plate-like part 120a. In (a1) of FIG. 7, the notch 250 is a rectangular parallelepiped space, but may have other shapes.

  Further, as shown in (a2) of FIG. 7, when the plate-like part 120a is viewed from the upper surface side, the notch part 250 overlaps the antenna part 230. Thereby, as shown in (b2) of FIG. 7, a gap is provided between the antenna unit 230 and the ceiling 190. Note that the thickness of the gap is the same as the thickness L of the plate-like portion 120a.

  As described above, the first housing 120 is typically made of metal. And the antenna part 230 typically transmits / receives a radio signal with the remote controller provided indoors. Here, when the notch part 250 is not provided, the metal plate-like part 120a is interposed between the remote controller and the antenna part 230, and the transmission / reception performance of the antenna part 230 is lowered. However, when the cutout portion 250 is provided, at least the metal plate-like portion 120a is not interposed between the remote controller and the antenna portion 230, so that the transmission / reception performance of the antenna portion 230 is easily ensured.

  In addition, the ceiling 190 may function as a dielectric depending on the material thereof, and the antenna unit 230 is adversely affected by being provided near the antenna unit 230, such as a change in the frequency (resonance frequency) of a radio signal. There is. By providing the notch portion 250, a gap is provided between the antenna portion 230 and the ceiling 190, and the distance between the antenna portion 230 and the ceiling 190 is ensured. That is, the notch portion 250 can reduce such an adverse effect on the antenna portion 230.

  In addition, the notch part 250 may be provided in places other than a corner | angular part among the plate-shaped parts 120a. The cutout portion 250 may be provided in a portion of the plate-like portion 120a that overlaps the antenna portion 230.

  Further, an opening may be provided instead of the notch 250. That is, when viewed from a direction perpendicular to the main surface of the plate-like portion, an opening may be provided in a portion of the plate-like portion 120a that overlaps the antenna portion 230.

  Further, the plate-like portion 120a may hold the second housing 130 in a rotatable state. That is, the plate-like portion 120a may be provided with a mechanism capable of adjusting the direction of the antenna unit 230 (second housing 130) in the second housing 130.

  FIG. 8 is a diagram illustrating an example of the plate-like portion 120a that holds the second housing 130 in a rotatable state.

  As shown in FIG. 8A, the second housing 130 is held on the plate-like portion 120 a by pins 180. Here, the second housing 130 is rotatable as shown in FIG. 8B with the position of the pin 180 as a fulcrum. That is, the plate-like portion 120a holds the second casing 130 in a rotatable state. In FIG. 8B, when viewed from a direction perpendicular to the main surface of the plate-like portion 120a, the plate-like portion 120a and the antenna portion 230 do not overlap.

  As described above, the plate-like portion 120a holds the second housing 130 in a rotatable state, so that the sensitivity of the antenna unit 230 in the second housing 130 can be easily adjusted.

  Note that the second housing 130 may be held on the plate-like portion 120a with a screw or a hook instead of the pin 180, for example. As long as the direction of the second housing 130 can be changed, the second housing 130 may be held in any manner.

(Other embodiments)
As mentioned above, although the lighting fixture which concerns on Embodiment 1 and 2 was demonstrated, this invention is not limited to such an embodiment.

  For example, the wireless control unit may be provided in the first housing 120 instead of in the second housing 130.

  FIG. 9 is a block diagram illustrating a functional configuration of the lighting fixture when the wireless control unit 210 is provided in the first housing 120.

  Even in the configuration of the lighting fixture 100a shown in FIG. 9, since the radio signal transmitted and received by the antenna unit 230 is difficult to be reflected, the transmission and reception performance of the antenna unit 230 can be ensured.

  In the configuration described with reference to FIG. 6, the second housing 130 may be disposed on the main surface of the plate-like portion 120 c.

  FIG. 10 is a diagram schematically showing the first casing 120 and the second casing 130 when the second casing 130 is arranged on the plate-like portion 120c in FIG. 10A is a view of the first housing 120 viewed from the upper surface side, and FIG. 10B is a view of the first housing 120 viewed from the side surface side. (C) is a view of the first casing 120 as seen from the lower surface side (light emission side). In addition, in (b) and (c) of FIG. 10, description about the attaching part 150 is abbreviate | omitted.

  In FIG. 10, the second housing 130 is disposed on the plate-like portion 120 c of the first housing 120. The plate-like portion 120 c is a portion corresponding to one end of the first housing 120 in the longitudinal direction of the first housing 120. Since the first casing 120 is inserted into the embedding hole 155 from one end in the longitudinal direction, the second casing 130 is provided at a position corresponding to one end in the longitudinal direction of the first casing 120. Thus, when the first casing 120 is inserted into the embedding hole, there is an effect that the second casing 130 does not hinder the insertion. That is, the workability of the lighting fixture 100 is improved by providing the second housing 130 at a position corresponding to one end in the longitudinal direction of the first housing 120.

  Further, since the distance between the second casing 130 and the instrument main body 110 is farther than when the second casing 130 is disposed on the plate-shaped portion 120a, the distance between the antenna section 230 and the instrument main body 110 is longer. Is preserved. For this reason, the influence of the instrument body 110 heat generation and noise on the antenna unit 230 is reduced.

  In FIG. 10, a cutout portion 260 is provided in a portion of the plate-like portion 120 c that overlaps the antenna portion 230. The notch 260 has the same effect as the notch 250 described in the second embodiment.

  In the above embodiment, the second casing 130 is provided on the plate-like portion 120a (or 120c) of the first casing 120, but the second casing 130 and the first casing 130 The positional relationship with the housing 120 is not limited to such an arrangement.

  For example, the first housing 120 may be disposed on a plate-like portion provided in the second housing 130. Further, the positional relationship between the first housing 120 and the second housing 130 may be fixed by another connection member. Further, the second housing 130 may be disposed not on the first housing 120 but on the instrument main body 110.

  In addition, the present invention may be realized as the power supply device 200. In this case, the power supply device 200 is disposed outside the first housing 120 that covers the first housing 120 that covers the power supply circuit 220 that supplies power to the light source and the antenna unit 230 that transmits or receives a radio signal. And a second housing 130 arranged.

  Note that the wireless control of the lighting fixture 100 is not limited to being used to turn on or off the lighting fixture 100. For example, the luminaire 100 may have a function of performing light control and color adjustment by wireless control.

  In addition, this invention is not limited to these embodiment or its modification. Unless it deviates from the gist of the present invention, various modifications conceived by those skilled in the art are applied to the present embodiment or the modification thereof, or a form constructed by combining different embodiments or components in the modification. It is included within the scope of the present invention.

DESCRIPTION OF SYMBOLS 100, 100a Lighting fixture 105 Lighting circuit 110 Appliance main body 120 1st housing | casing 120a, 120c Plate-shaped part 120b Main body part 125 Light source 130 2nd housing | casing 135 Radiation fin 140 Attachment spring 145, 160, 170 Cable 150 Attachment part 155 Embedded hole 180 Pin 190 Ceiling 200 Power supply 210 Radio control unit 220 Power supply circuit 230 Antenna unit 235 Connector 240 Substrate 250, 260 Notch

Claims (9)

A lighting apparatus having a function of transmitting or receiving a radio signal,
An instrument body having a light source;
A first housing;
A second housing disposed outside the first housing,
The first casing covers a power supply circuit that supplies power to the light source,
The second casing covers an antenna unit that transmits or receives the wireless signal. The lighting fixture according to claim 1, wherein the second casing further covers a wireless control unit that controls transmission or reception of the wireless signal by the antenna unit. The lighting fixture according to claim 1, wherein the first casing further covers a wireless control unit that controls transmission or reception of the wireless signal by the antenna unit. The lighting fixture according to claim 1, wherein the first housing is made of metal. The lighting fixture according to claim 1, wherein the second housing is made of an insulating material. The first housing is
A main body covering the power supply circuit;
A plate-like portion extending from a part of the main body,
The lighting fixture according to claim 1, wherein the second housing is disposed on the plate-like portion. A power supply device for supplying power to a light source of a lighting fixture having a function of transmitting or receiving a radio signal,
A first housing;
A second housing disposed outside the first housing,
The first casing covers a power supply circuit that supplies power to the light source,
The second casing is a power supply device that covers an antenna unit that transmits or receives the wireless signal. The power supply device according to claim 7, wherein the second casing further covers a wireless control unit that controls transmission or reception of the wireless signal by the antenna unit. The power supply device according to claim 7, wherein the first casing further covers a radio control unit that controls transmission or reception of the radio signal by the antenna unit.

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