CN106151888B

CN106151888B - Light source unit and lighting fixture including the same

Info

Publication number: CN106151888B
Application number: CN201610265890.8A
Authority: CN
Inventors: 安藤保; 七原淳郎; 五岛成夫; 中岛和广; 竹村博行
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2015-05-11
Filing date: 2016-04-26
Publication date: 2021-03-02
Anticipated expiration: 2036-04-26
Also published as: CN106151888A

Abstract

The invention discloses a light source unit and a lighting fixture including the same, wherein the light source unit has improved communication performance. The light source unit (10) includes a light source unit (1), a wireless communication unit (2) that performs wireless communication, and a holder (3) that holds the light source unit (1) and the wireless communication unit (2). The holding body (3) includes a support member (4) and a cover member (5). The support member (4) is made of a metal material and supports the light source unit (1). The cover member (5) is attached to the support member (4) to cover the support member (4) so that an accommodation space is formed between the support member (4) and the cover member (5). The wireless communication unit (2) includes an antenna unit (2a) and a communication circuit (2 b). The cover member (5) allows radio waves to pass therethrough. The antenna part (2a) is disposed in the housing space (10 aa).

Description

Light source unit and lighting fixture including the same

Technical Field

The present invention relates generally to a light source unit and a lighting fixture, and more particularly, to a light source unit capable of wireless communication and a lighting fixture including the same.

Background

In recent years, in order to save energy and improve convenience, lighting fixtures may be configured to be remotely controlled through wireless communication.

As an example of this type of lighting fixture, there is known a lighting fixture in which an antenna of a wireless communication section is provided inside the lighting fixture at a position corresponding to a through hole that connects the inside and outside of the lighting fixture to each other (for example, document 1 JP 2013-33652A).

Also, although not a lighting fixture, an electronic device is known in which an antenna is connected to a wireless communication circuit through a power supply line, and a radiation unit of the antenna is disposed on a frame region of a circuit substrate as viewed from the front side (for example, document 2 JP 2012-.

In the field of light source units and lighting fixtures having the same, there is a need for a structure providing improved communication performance. The structure based on the technique of the above-mentioned document 1 and/or document 2 is insufficient, and further improvement is required.

Disclosure of Invention

An object of the present invention is to provide a light source unit and a lighting fixture capable of improving communication performance.

A light source unit according to an aspect of the present invention includes a light source section, a wireless communication section, and a holding body. The wireless communication section is configured to perform wireless communication using radio waves as a medium. The holder holds the light source unit and the wireless communication unit. The holding body includes a support member and a cover member. The support member is made of a metal material. The support member supports the light source unit. The cover member is attached to the support member to cover the support member. An accommodation space is formed between the support member and the cover member. The wireless communication section includes an antenna section and a communication circuit. The communication circuit is electrically connected to the antenna portion. The communication circuit is configured to perform at least one of transmission and reception of radio waves through the antenna portion. The cover member allows the radio waves to pass therethrough. The antenna part is arranged in the accommodating space.

A lighting fixture according to an aspect of the present invention includes the light source unit and a fixture body to which the light source unit is attached.

Drawings

Fig. 1 is a sectional view of a light source unit according to embodiment 1 of the present invention;

fig. 2 is an enlarged cut-away perspective view of a main portion of the light source unit;

fig. 3 is a cut-away front view of the light source unit;

fig. 4 is an exploded perspective view of a lighting fixture including the light source unit;

FIG. 5 is a perspective view of the lighting fixture;

fig. 6 is an enlarged perspective view of a main part of a light source unit according to embodiment 2 of the present invention;

fig. 7 is a cut-away front view of the light source unit;

fig. 8 is a side view of the light source unit;

fig. 9 is an exploded perspective view of a main part of the light source unit;

fig. 10 is a plan view showing the principle of the light source unit; and

fig. 11 is a plan view showing the principle of a light source unit according to a reference example.

Detailed Description

(example 1)

Hereinafter, the light source unit 10 according to the present embodiment is described with reference to fig. 1, 2, and 3. Also, a lighting fixture 30 including the light source unit 10 is described with reference to fig. 4 and 5. In the drawings, the same components are denoted by the same reference numerals to avoid redundant explanation. For clarity of description, the sizes and/or positional relationships of the components shown may be different from those of an actual product. According to the assembly of the present embodiment, one member serving as two or more elements may constitute two or more assemblies, or two or more members cooperating with each other to serve as a single element may constitute a single element.

As shown in fig. 1, 2, and 3, the light source unit 10 of the present embodiment includes a light source section 1, a wireless communication section 2, and a holding body 3. The wireless communication section 2 is configured to perform wireless communication using radio waves as a medium. The holder 3 holds the light source unit 1 and the wireless communication unit 2. The holding body 3 includes a support member 4 and a cover member 5. The support member 4 is made of a metal material. The support member 4 supports the light source unit 1. The cover member 5 is attached to the support member 4. The cover member 5 covers the support member 4 to form an accommodating space 10aa therein. The wireless communication unit 2 includes an antenna unit 2a and a communication circuit 2 b. Radio waves are transmitted and/or received through the antenna portion 2 a. The communication circuit 2b is electrically connected to the antenna portion 2 a. The cover member 5 is made of a resin material. The cover member 5 allows radio waves to pass therethrough. The antenna part 2a is disposed in the accommodation space 10aa enclosed by the cover member 5.

Since the antenna part 2a is disposed within the accommodation space 10aa enclosed by the cover member 5 that allows radio waves to pass therethrough, the light source unit 10 of the present embodiment has improved communication performance.

Hereinafter, the light source unit 10 of the present embodiment will be described in further detail.

The light source section 1 includes a light emitting element 1a and a mounting substrate 1b electrically interconnected with the light emitting element 1 a. The light emitting element 1a is a Light Emitting Diode (LED). Each light emitting element 1a is soldered to be electrically connected to a wiring portion (wiring; patterned conductor) of the mounting substrate 1 b.

The mounting substrate 1b has an outer shape in the shape of an elongated flat plate. As shown in fig. 2 and 3, the light emitting element 1a is mounted on the mounting substrate 1b so as to be arranged along the longitudinal direction of the mounting substrate 1 b. The light emitting elements 1a are electrically connected in series by wiring portions (patterned conductors) of the mounting substrate 1 b. The light emitting elements 1a are disposed at the center in the width direction of the mounting substrate 1b so as to be aligned in a line along the longitudinal direction of the mounting substrate 1 b. The mounting substrate 1b may be a printed wiring board. A resist film is formed on the mounting substrate 1b except for the mounting surface on which the light emitting element 1a is mounted. The mounting substrate 1b is not limited to a printed wiring board, and may be a ceramic substrate, a metal-based printed wiring board, or the like. The mounting substrate 1b is attached to the attachment portion 4a of the support member 4 and supported by the attachment portion 4 a. The light source section 1 is not limited to include LEDs, but may include organic electroluminescent element(s), discharge lamp(s), and the like.

The support member 4 has an elongated shape. The support member 4 may be made of, for example, a steel plate. The support member 4 includes an attachment portion 4a in a plate shape, and a pair of side wall portions 4 b. The support member 4 including the attachment portion 4a and the pair of side wall portions 4b has a C-shape in cross section. The attachment portion 4a has an elongated rectangular shape in front view. The side wall portions 4b project from the respective end portions in the width direction of the attachment portion 4a and extend in a direction perpendicular to both the longitudinal direction and the width direction of the attachment portion 4 a. The side wall portions 4b are each provided with a projecting portion 4e projecting outward on an end portion thereof. The protruding portion 4e is provided over the entire length in the longitudinal direction of the support member 4.

The protruding portion 4e has a circular tubular shape and can be formed by curling the end portion of the side wall portion 4 b. A groove 4ad is formed in the center of the attachment portion 4a to extend in the longitudinal direction of the attachment portion 4 a. The groove 4ad is defined by a bottom 4cb and a pair of sides 4 cc. The bottom 4cb has an elongated rectangular shape in a front view. The side portions 4cc project from the respective edges of the bottom portion 4cb in the longitudinal direction of the bottom portion 4 cb. The support member 4 is configured such that the mounting substrate 1b can be disposed at a predetermined position of the bottom portion 4 cb. The support member 4 has an engaging piece 4s protruding from the bottom 4 cb. The mounting substrate 1b has through holes 1bc penetrating the mounting substrate 1b in its thickness direction, and allows the engaging pieces 4s to be individually inserted into the through holes 1 bc. The mounting substrate 1b is fixed in position between the engaging piece 4s and the bottom 4cb by bending the engaging piece 4s sideways after inserting the engaging piece 4s into the respective through-holes 1 bc.

The distance between the pair of side portions 4cc increases with increasing distance from the bottom portion 4 cb. The surface of the side portion 4cc is configured as a reflection surface for reflecting light emitted from the light emitting element 1 a. The attachment portion 4a has an opening 4aa at a first end thereof in the longitudinal direction. The opening 4aa opens in the thickness direction of the attachment portion 4 a. The opening 4aa may be a notch cut out at an end of the attachment portion 4a (see fig. 2, 3), or a through-hole penetrating the attachment portion 4a in the thickness direction. The opening 4aa may be formed by punching a metal plate of the support member 4.

In the light source unit 10, the mounting substrate 1b is supported by the support member 4 in contact with the support member 4 made of a metal material, whereby the support member 4 functions as a heat radiation plate. When the support member 4 is made of a steel plate having higher thermal conductivity than the resin, the heat generated by the light emitting element 1a can be effectively radiated to the outside. Note that the material of the support member 4 is not limited to a steel plate. Alternatively, the support member 4 may be made of a metal material such as aluminum, copper, and stainless steel. The support member 4 may be formed by punching and bending a metal plate. The support member 4 is formed such that the cover member 5 can be attached to the support member 4.

As shown in fig. 2 and 3, the cover member 5 has an elongated shape. The cover member 5 is attached to the support member 4 to cover the light source section 1. The cover member 5 covers the mounting substrate 1b on which the light emitting element 1a is mounted to form an accommodation space 10aa surrounded by the cover member 5 and the support member 4. The cover member 5 includes a cover main body 5a and a cover end portion 5 b.

The cover main body 5a includes a light exit portion 5c having a semi-cylindrical tubular shape and a pair of projecting wall portions 5 d. The protruding wall portion 5d is formed along the longitudinal direction of the light emitting portion 5 c. The pair of projecting wall portions 5d project from respective ends of the light exit portion 5c so as to be parallel to each other. As shown in fig. 1, each of the pair of projecting wall portions 5d is provided at one end thereof with a projection 5e projecting inward such that the projections 5e come close to each other.

The projection 5e has a shape capable of being hung on the projection 4e of the support member 4. An inward projecting portion 5f is provided on the projecting wall portion 5d at a position between the boss 5e and the light emitting portion 5 c. Each inward protrusion 5f protrudes inward and protrudes toward the protruding wall portion 5d facing the inward protrusion 5 f. The cover main body 5a is provided with extensions 5h extending from respective ends of the light exit portion 5c in the width direction. The extending portion 5h continuously extends from the light emitting portion 5c to be located outside the protruding wall portion 5 d. In the cover main body 5a, the light exit portion 5c, the protruding wall portion 5d, the projection 5e, the extending portion 5h, and the inward protruding portion 5f are integrally formed.

As shown in fig. 3, the cover end portion 5b is provided on an end portion of the cover main body 5a in the longitudinal direction (also an end portion of the support member 4 in the longitudinal direction). As shown in fig. 5, the cover end portion 5b has a semicircular plate-like outer shape. As shown in fig. 1, the cover end portion 5b has a clip portion 5g that engages with an inward projection 5f of the cover main body 5 a. The clip portion 5g engages with an end of the inward protrusion 5f on one side of the cover main body 5a, whereby the cover end 5b is attached to the cover main body 5 a. The cover member 5 includes a cover main body 5a and a cover end portion 5b so as to have a plurality of faces. In other words, as shown in fig. 4, the cover member 5 has a plurality of faces 50 each facing the light source section 1. The cover member 5 has a plurality of faces 50 that allow light emitted from the light source section 1 to pass therethrough, and the cover end portion 5b has a face having the smallest area among these faces 50.

In the light source unit 10 of the present embodiment, the cover member 5 is light-transmissive so as to allow light emitted from the light source section 1 to pass therethrough. The cover member 5 allows light emitted from the light source unit 1 to appear to the outside through the outer bottom surface 5aa of the cover member 5. Since the cover member 5 is light-transmissive in the light source unit 10 so as to allow light emitted from the light source section 1 to pass therethrough, a decrease in the use efficiency of light generated by the light source section 1 can be suppressed. Preferably, the cover member 5 has a configuration that allows light emitted from the light emitting element 1a to efficiently pass through. Preferably, the covering member 5 is made of a material having high permeability to radio waves. The cover member 5 can be made of a resin material such as polycarbonate resin and acrylic resin. The cover member 5 may be formed by injection molding, for example. The cover member 5 may be made of a light-transmitting resin material containing a light scattering material. The cover member 5 may, for example, contain a light scattering material so as to be translucent. The cover member 5 may be coloured white (e.g. milk white, as long as it is light transmissive.

As for the cover member 5, the cover main body 5a and the cover end portion 5b may be made of the same or different materials. As for the cover member 5, the cover main body 5a and the cover end portion 5b may have the same thickness, or alternatively, the thickness of the cover main body 5a may be different from that of the cover end portion 5 b.

The wireless communication part 2 is attached to the support member 4. The wireless communication section 2 is configured to perform wireless communication using the antenna section 2a and the communication circuit 2 b. The wireless communication section 2 includes, in addition to the antenna section 2a and the communication circuit 2b, a circuit substrate 6 and a housing case 7 for housing the circuit substrate 6.

The circuit board 6 has a flat plate-like outer shape. The circuit substrate 6 may be, for example, a printed wiring board. The circuit board 6 has a first region 6ca provided with the antenna portion 2a and a second region 6cb provided with the communication circuit 2 b. As shown in fig. 1, in the circuit substrate 6, the second region 6cb has a width larger than that of the first region 6 ca. The circuit substrate 6 is configured to transfer the communication signal received by the antenna portion 2a to the communication circuit 2 b. The circuit substrate 6 is configured to transmit a communication signal provided by the communication circuit 2b to the antenna portion 2a, thereby wirelessly outputting the communication signal to the outside.

The antenna portion 2a may be, for example, a wiring (patterned conductor) 6a having a desired shape for the circuit substrate 6. For example, as shown in fig. 1, the wiring 6a may be a meander line having a plurality of corners. The antenna portion 2a may be provided on any one of the surfaces in the thickness direction of the circuit substrate 6, or on both surfaces in the thickness direction of the circuit substrate 6. The antenna portion 2a is not limited to the wiring 6a provided on the circuit substrate 6, and may be formed separately from the circuit substrate 6. The antenna section 2a constituted by the wiring 6a on the circuit substrate 6 is advantageous in terms of cost reduction, compared with the case where the antenna section 2a is formed separately from the circuit substrate 6, because the cost of the antenna section 2a can be reduced. The antenna portion 2a formed separately from the circuit substrate 6 may be appropriately fixed to the first area 6ca of the circuit substrate 6. The communication circuit 2b may include an electronic component 6d such as a quartz crystal oscillator (quartz crystal oscillator) and a microcomputer, and is configured to perform at least one of transmission and reception of radio waves.

The accommodation box 7 has a shape in which two rectangular boxes are combined together. The accommodation box 7 includes, for example, a cover 7a and a box body 7 b. The case body 7b is covered with the lid 7a to form a box shape having an inner cavity, thereby forming the accommodation case 7. The circuit substrate 6 is accommodated in the accommodation box 7. The circuit substrate 6 is disposed in the accommodation case 7 such that the antenna portion 2a (first area 6ca) is disposed in the cover 7a and the communication circuit 2b (second area 6cb) is disposed in the case 7 b. The cover 7a serves as an antenna accommodating portion 7c accommodating the antenna portion 2 a. The case 7b serves as a communication circuit housing portion 7p housing the communication circuit 2 b. The case 7b is provided with fixing portions 7d, wherein each fixing portion 7d has a plate shape extending in the longitudinal direction of the case 7b, and the fixing portions 7d can fix the accommodation case 7 to the support member 4. The fixing portion 7d has a screw hole penetrating in the thickness direction thereof. The support member 4 has a through hole, and a screw 7e can be inserted into the through hole of the support member 4 and then screwed into the fixing portion 7 d. The accommodation box 7 is formed such that the antenna accommodation portion 7c can be inserted into the opening 4aa penetrating the attachment portion 4a in the thickness direction. The communication circuit housing part 7p is provided on the side of the support member 4 (attachment part 4a) opposite to the housing space 10 aa. Then, the communication circuit 2b (second region 6cb) is disposed on the side of the support member 4 (attachment portion 4a) opposite to the accommodation space 10 aa. The communication circuit housing portion 7p has such a shape as not to allow the communication circuit housing portion 7p to be inserted into the opening 4 aa. For example, when the opening 4aa is rectangular in shape, one side of the communication circuit accommodating part 7p may be larger than the long side of the rectangular opening 4 aa.

The accommodation box 7 is made of a material that is transparent to radio waves. The material of the accommodation case 7 may be a synthetic resin such as polycarbonate resin, epoxy resin, polyester resin, and polyimide resin. The accommodation box 7 may be made of synthetic resin containing a light scattering material.

With regard to the wireless communication part 2, in a state where the antenna housing part 7c protrudes from the opening 4aa toward the cover member 5, the screw 7e is fixed to the fixing part 7d, and the support member 4 is interposed between the head of the screw 7e and the fixing part 7 d. With respect to the wireless communication section 2, the antenna housing section 7c protrudes toward the cover member 5, and then the circuit substrate 6 is disposed so as to intersect the plane of the bottom section 4 cb. In the wireless communication part 2, since the antenna part 2a protrudes from the groove 4ad of the support member 4 toward the cover member 5 to be disposed within the accommodation space 10aa, the communication performance of the antenna part 2a can be improved. With respect to the light source unit 10, the face on the circuit substrate 6 on which the antenna portion 2a is formed is perpendicular to the longitudinal direction of the support member 4, and thus the directivity of radio waves in the longitudinal direction of the support member 4 can be improved.

In short, in the light source unit 10 of the present embodiment, the wireless communication section 2 includes the circuit substrate 6 and the accommodation box 7. The accommodation box 7 is configured such that the circuit substrate 6 can be accommodated within the accommodation box 7. The circuit board 6 has a first region 6ca provided with the antenna portion 2a and a second region 6cb provided with the communication circuit 2 b. The accommodation box 7 allows radio waves to pass therethrough. The accommodation box 7 is made of a resin material.

The light source unit 10 includes the housing box 7 for housing the circuit substrate 6, and therefore the wireless communication section 2 can be easily operated.

According to the light source unit 10 of the present embodiment, the support member 4 includes the attaching portion 4a having a plate shape, and the light source portion 1 is attached to the attaching portion 4 a. The support member 4 (the attachment portion 4a) has an opening 4aa penetrating in the thickness direction of the attachment portion 4 a. The accommodation box 7 includes an antenna accommodation portion 7c for accommodating the antenna portion 2 a. The antenna receiving part 7c is inserted into the opening 4aa to protrude toward the cover member 5, thereby being disposed within the receiving space 10 aa.

With respect to the light source unit 10, since the antenna housing part 7c is inserted into the opening 4aa to protrude toward the cover member 5 to be disposed inside the housing space 10aa, a portion of the wireless communication part 2 disposed inside the housing space 10aa can be minimized.

The wireless communication section 2 is configured to transmit and/or receive a communication signal to/from a communication device located outside the lighting fixture 30 including the light source unit 10 by radio waves. The wireless communication section 2 may be configured to receive, for example, a wireless signal indicating the presence or absence of a human from a communication device connected to the human detection sensor. The light source unit 10 may be configured to turn on the light source part 1 when receiving a wireless signal indicating the presence of a human being. The light source unit 10 may be configured to turn off the light source part 1 or dim the light source part 1 when receiving a wireless signal indicating that no human being is present. The wireless communication section 2 may be configured to transmit a wireless signal indicating whether or not the light source unit 10 is in failure to the communication apparatus. The wireless communication section 2 may be configured to transmit a wireless signal indicating information on the consumed power in the light source unit 10 to the communication apparatus.

The wireless communication unit 2 has a function of transmitting and receiving a wireless signal. Alternatively, the wireless communication section 2 may have only a function of transmitting a wireless signal. The wireless communication section 2 may have only a function of receiving a wireless signal.

The wireless communication section 2 may be configured to transmit a wireless signal using, for example, an Ultra High Frequency (UHF) band. The wireless communication unit 2 performs wireless communication in a 2.4GHz band (based on a low power data communication system), for example. The wireless communication section 2 is not limited to the application of the 2.4GHz band, but may be applied to the 920MHz band (based on a specific low power data communication system). The wireless communication unit 2 may be configured to transmit a wireless signal using any one of license-free frequency bands (license-free frequency bands). The cover member 5 allows radio waves of a frequency band emitted from the wireless communication section 2 and/or received by the wireless communication section 2 to pass therethrough. The accommodation box 7 allows radio waves of a frequency band transmitted from the wireless communication section 2 and/or received by the wireless communication section 2 to pass therethrough.

As shown in fig. 4, the light source unit 10 includes an illumination unit 8 in addition to the light source unit 1, the wireless communication unit 2, and the holder 3.

The illumination unit 8 is electrically connected to the light source section 1 and the wireless communication section 2. The illumination unit 8 may include a controller that controls illumination of the light source section 1, and a power supply that supplies power to the light source section 1, the wireless communication section 2, and the like. The controller may have at least one of the following functions: a function of controlling illumination of the light source section 1 based on a wireless signal provided by an external apparatus and received through the wireless communication section 2; and a function of transmitting a wireless signal of information on the state of the light source unit 10 to an external device through the wireless communication section 2, for example. The power supply is configured to convert electric power supplied from an external power supply, such as a commercial alternating-current power supply, into desired electric power, and supply the generated electric power to the light source section 1, the wireless communication section 2, and the like, respectively. The illumination unit 8 is configured to control illumination of the light source section 1 based on a signal from the wireless communication section 2. The illumination unit 8 includes an illumination circuit substrate 8a and a housing 8 c. The controller and the power supply are provided on the lighting circuit substrate 8 a. The lighting circuit substrate 8a is accommodated in a housing 8 c.

In the lighting circuit substrate 8a, the power supply is configured to convert, for example, an AC voltage into a DC voltage. The illumination unit 8 is held on the side of the support member 4 opposite to the light source section 1. In the light source unit 10, power from an external device is supplied to the illumination unit 8. The electrical component 8b is mounted on the lighting circuit substrate 8 a.

The electrical components 8b constitute various circuits of the lighting unit 8. Examples of the various circuits include a filter circuit, a booster circuit, a step-down circuit, a main control circuit, a control power supply circuit, a dimming control circuit, a turn-off control circuit, and the like. Examples of the electrical component 8b include a transformer, a diode, a capacitor, a switching device, a microcomputer, and the like. The external power source may be, for example, a commercial ac power source. The lighting unit 8 receives an alternating current.

The housing 8c has an outer shape of a rectangular box shape having an opening in one face. The illumination unit 8 is configured such that a housing 8c for accommodating the illumination circuit substrate 8a can be attached to the support member 4. The opening of the housing 8c is closed by the attachment portion 4a of the support member 4. The housing 8c may be formed by bending a metal plate. The housing 8c is attached to the support member 4, for example, by attachment screws (see fig. 1).

The circuit substrate 6 of the wireless communication section 2 is electrically connected to the illumination unit 8 through the wiring harness 2 f. The wiring harness 2f may be a shielded cable. The shielded electrical cable includes an electrical wire, a coating surrounding the electrical wire, and a fine covered wire or metal foil surrounding the coating. The wires inside the shielded cable transmit communication signals, and the covered wires or metal foils outside the shielded cable are grounded.

For example, assume that the light source unit of the comparative embodiment has a structure in which the antenna portion 2a of the wireless communication portion 2 protrudes outward. In the light source unit of the comparative embodiment, the degree of freedom of design is limited, and thus it has an undesirable appearance. Also, in the light source unit of the comparative embodiment, in order to effectively radiate heat generated by the light source section 1, the light source section 1 is attached to the support member 4 made of a metal material. However, in the light source unit, when the wireless communication section 2 is simply provided on the support member 4 for the purpose of improving the external appearance, there is no doubt that this may cause a tendency of the communication performance of the antenna section 2a to be degraded, such as directivity and/or gain.

In the light source unit 10, when the circuit substrate 6 is disposed so as to intersect the face of the attachment portion 4a, it is possible to avoid absorption of radio waves by the support member 4 made of a metal material, so that the radiation intensity ratio of radio waves from the wireless communication portion 2 can be improved as compared with a case where the circuit substrate 6 is disposed so as to be parallel to one face of the attachment portion 4 a. In the light source unit 10, when the circuit substrate 6 is disposed so as to intersect the face of the attachment portion 4a, the variation (fluctuation) in the radiation intensity ratio of the radio wave of the wireless communication portion 2 can also be reduced as compared with the case where the circuit substrate 6 is disposed so as to be parallel to one face of the attachment portion 4 a.

In the light source unit 10 of the present embodiment, the wireless communication section 2 is provided at a position distant from the illumination unit 8 in the longitudinal direction of the support member 4. The wireless communication section 2 includes a quartz crystal oscillator or the like, and thus when the wireless communication section 2 is heated by heat generated by the light source section 1 and/or the illumination unit 8, the intensity of radio wave emission may be reduced. Since the wireless communication section 2 is provided at a position distant from the illumination unit 8, deterioration of communication performance is suppressed.

In the configuration in which the wireless communication portion 2 is provided at the end portion of the support member 4, there is a possibility that the shadow of the wireless communication portion 2 is cast on the covering end portion 5 b. In the light source unit 10, the area of the cover end portion 5b is small in the cover member 5, and the influence of the cover end portion 5b on the luminance of the light source unit 10 is small. Therefore, the light blocking effect of the antenna portion 2a blocking the light from the light source portion 1 can be reduced. In the light source unit 10, since the light blocking effect that the antenna portion 2a blocks the light from the light source portion 1 can be reduced, the wireless communication portion 2 is not conspicuous.

In other words, in the light source unit 10 of the present embodiment, the cover member 5 has a plurality of faces 50 combined together, and covers the light source section 1. That is, the cover member 5 has a plurality of faces 50 each facing the light source section 1. Preferably, the wireless communication section 2 is provided in the vicinity of the smallest area among the plurality of surfaces 50. Note that when there are two or more planes having the smallest area, the wireless communication section 2 is preferably disposed in the vicinity of any one of the two or more planes having the smallest area.

According to the light source unit 10, since the wireless communication portion 2 is provided in the vicinity of the surface having the smallest area among the plurality of surfaces 50, the wireless communication portion 2 is not conspicuous even when the shadow of the wireless communication portion 2 is cast on the cover member 5. In the light source unit 10, the surface having the smallest area among the plurality of surfaces 50 is the surface that receives a small amount of light of the light source section 1. Therefore, the light blocking effect of the wireless communication section 2 can be minimized by disposing the wireless communication section 2 in the vicinity of such a face, as compared with the case where the wireless communication section 2 is disposed in the vicinity of a face having a large area. That is, the wireless communication section 2 is provided at one end of the light source unit 10, which has a small influence on the luminance of the light source unit 10.

In the light source unit 10, a gap exists between the covering end portion 5b of the covering member 5 and the accommodation box 7. In the light source unit 10, a gap is provided between the covering end portion 5b of the covering member 5 and the accommodation box 7, so that light is dispersed by the support member 4 and the covering member 5, thereby being able to reach the gap. Therefore, a situation in which the end of the light source unit 10 becomes too dark can be avoided.

In the case of the configuration in which the light scattering material is contained in the synthetic resin of the accommodation box 7, the profile of the circuit substrate 6 is unlikely to be seen from the outside through the cover member 5. By avoiding the circuit substrate 6 from being seen from the outside, the appearance of the light source unit 10 can be improved. The accommodation box 7 including the light scattering material contained in the synthetic resin can reflect the light entering the gap between the accommodation box 7 and the cover member 5. Therefore, as compared with the case where the accommodation case 7 does not contain the light scattering material, a decrease in luminance of the end portion of the light source unit 10 where the wireless communication portion 2 is provided can be suppressed. Preferably, the light scattering material may be contained in the synthetic resin for forming the accommodation box 7 so that the accommodation box 7 is white.

The process of assembling the light source unit 10 will be described below.

In the process of assembling the light source unit 10, the light emitting element 1a is mounted on the mounting substrate 1b, whereby the light source section 1 can be prepared in advance. The mounting substrate 1b is attached to one face (first face) of the attachment portion 4a of the support member 4, and the wireless communication portion 2 and the illumination unit 8 are attached to the side (second face side) of the attachment portion 4a of the support member 4 opposite to the mounting substrate 1 b.

In this process, the wireless communication part 2 is disposed such that the antenna housing part 7c protrudes from the opening 4aa of the support member 4 toward the cover member 5, and then the screw 7e is fixed to the fixing part 7d of the housing box 7 with the support member 4 interposed therebetween, whereby the wireless communication part 2 is fixed to the support member 4. The wiring harness 2f electrically connected to the circuit substrate 6 and protruding from the housing box 7 is electrically connected to the illumination unit 8. Thereby, the wireless communication section 2 is electrically connected to the lighting unit 8.

Next, the cover member 5 is attached to the support member 4 to cover the mounting substrate 1 b. In this process, the projection 5e of the cover member 5 is fitted to the projection 4e of the support member 4. Specifically, the pair of projections 5e are respectively hung on the protruding portions 4e of the support member 4, whereby the cover member 5 is attached to the support member 4. Note that the protruding wall portion 5d of the cover member 5 is appropriately fixed to the side wall portion 4b of the support member 4 by a screw, whereby the cover member 5 and the support member 4 are fixed to form an integral body. The cover end portions 5b are attached to opposite ends in the longitudinal direction of the integrated body formed by the cover member 5 and the support member 4. Thus, the light source unit 10 can be assembled.

The lighting fixture 30 including the light source unit 10 will be briefly described below with reference to fig. 4 and 5.

The lighting fixture 30 includes the light source unit 10 described above and a fixture body 31 that holds the light source unit 10.

The antenna part 2a of the light source unit 10 is disposed in the accommodation space 10aa surrounded by the cover member 5, and thus the lighting fixture 30 can have improved communication performance.

The lighting fixture 30 is mounted directly to the ceiling. The appliance body 31 may be configured to be mounted to the top plate by hanger bolts. The tool body 31 has an elongated outer shape. The appliance body 31 has a flat box shape. The appliance body 31 has a groove 31aa in the center of the appliance body 31. The groove 31aa is formed in one face of the appliance body 31 and has an outer shape in a rectangular shape. The groove 31aa extends in the longitudinal direction of the appliance body 31. The groove 31aa extends over the entire length of the appliance body 31. The light source unit 10 is attached to the fixture body 31, and at least a part of the light source unit 10 is placed in the groove 31 aa. When the light source unit 10 is attached to the appliance body 31, the extending portion 5h of the cover member 5 overlaps with the side edge of the opening of the groove 31aa of the appliance body 31. The appliance body 31 is formed of a metal plate.

A through hole 31ca is formed in the bottom 31a of the groove 31aa of the appliance body 31. A power supply harness electrically connected to an external power supply, which allows power supply, is inserted into the through hole 31 ca. The bottom portion 31a is provided with a plurality of through holes 31ca arranged along the longitudinal direction of the appliance body 31.

The bottom portion 31a is also provided with bolt insertion holes 31cb, each of which bolt insertion holes 31cb allows insertion of a hanger bolt. Four bolt insertion holes 31cb provided along the longitudinal direction of the appliance body 31 are formed in the appliance body 31. The bolt insertion holes 31cb allow insertion of hanger bolts. After the hanger bolt is inserted into the bolt insertion hole 31cb, the nut is fixed to the hanger bolt.

The appliance body 31 includes inclined portions 31b on both sides of the groove 31aa in the width direction. The inclined portions 31b extend from side edges of the opening of the groove 31aa in the width direction, respectively. The inclined portion 31b is inclined such that the thickness of the appliance body 31 decreases with increasing distance from the groove 31 aa. The appliance body 31 may be formed by bending a metal plate. The appliance body 31 includes an end cap 31 e. The end caps 31e are provided at both ends of the appliance body 31 in the longitudinal direction. The end cap 31e has a trapezoidal shape as viewed in the longitudinal direction of the appliance body 31.

The material of the appliance body 31 may be a steel plate, but is not limited thereto. Alternatively, the material of the appliance body 31 may be aluminum, stainless steel, copper alloy, or the like. The fixture body 31 of the lighting fixture 30 is made of metal, and therefore thermal energy generated by the light emitting elements 1a of the light source unit 10 is more effectively diffused to the outside through the fixture body 31 than in the case where the fixture body 31 is made of resin. In the lighting fixture 30, the cover member 5 of the light source unit 10 protrudes from the fixture body 31, and the antenna part 2a is disposed within the accommodation space 10aa surrounded by the cover member 5, so that the communication performance can be further improved.

The lighting fixture 30 is not limited to the type directly mounted on the top plate. The lighting fixture 30 may have an appropriate structure as long as the light source unit 10 can be attached to the fixture body 31. In the lighting fixture 30, the fixture body 31 is configured such that the light source unit 10 is detachably attached to the fixture body 31.

(example 2)

Fig. 6 shows the light source unit 10 of the present embodiment. The light source unit 10 of the present embodiment has a similar structure to that of embodiment 1 shown in fig. 1, and is mainly different in the structure of the wireless communication section 2. In explaining the light source unit 10 of the present embodiment, the same members as those of embodiment 1 are denoted by the same reference numerals, and the description thereof is appropriately omitted.

As shown in fig. 7, in the light source unit 10 of the present embodiment, the light source unit 1, the holding body 3, and the cover member 5 are each formed in an elongated shape. The support member 4 of the holding body 3 is also formed in an elongated shape. As shown in fig. 8, the antenna housing portion 7c has an end portion 7f protruding toward the cover member 5. The end portion 7f has a contour following the shape of (the portion of) the inner bottom surface 5ab of the cover member 5 facing the end portion 7f when viewed in the longitudinal direction of the cover member 5.

In the light source unit 10 of the present embodiment, since the end portion 7f of the antenna housing portion 7c has an outer shape following the shape of the inner bottom surface 5ab of the cover member 5, the antenna housing portion 7c is not conspicuous when the shadow of the antenna housing portion 7c is projected on the cover member 5 via the light of the light source portion 1.

According to the light source unit 10 of the present embodiment, the visibility of the shadow cast by the end portion 7f on the cover member 5 can be suppressed, so that the appearance of the light source unit 10 can be improved as compared with the case where the outer shape of the antenna housing portion 7c does not match the shape of the inner bottom surface 5ab of the cover member 5 in embodiment 1. In the light source unit 10 of the present embodiment, the end portion 7f of the antenna housing portion 7c has a circular arc shape following the inner bottom surface 5ab of the cover member 5, and has no sharp edge protruding toward the cover member 5. Since there is no sharp edge protruding toward the cover member 5 in the light source unit 10 of the present embodiment, the end portion 7f of the wireless communication part 2 is less likely to hit the cover member 5 during the assembly of the cover member 5 and the support member 4, and the light source unit 10 can be assembled more easily. In the light source unit 10, the distance between the end portion 7f and the inner bottom surface 5ab of the cover member 5 may be set to about 3 mm.

A specific structure of the wireless communication section 2 of the present embodiment will be described below with reference to fig. 9.

Similarly to embodiment 1, in the wireless communication section 2, the accommodation box 7 includes a cover 7a and a box body 7 b. The cover 7a includes an antenna housing portion 7c, a flat plate portion 7g, and leg portions 7 h. The flat plate portion 7g has a rectangular plate-like outer shape. The antenna housing portion 7c is provided to protrude from one surface (first surface) of the flat plate portion 7 g. In the front view, the longitudinal direction of the antenna housing portion 7c is parallel to the longitudinal direction of the flat plate portion 7 g. The leg portion 7h protrudes from the flat plate portion 7g toward a side portion of the flat plate portion 7g opposite to the antenna housing portion 7 c. The leg portion 7h includes a claw 7j on the protruding end of the leg portion 7 h. One leg portion 7h faces the other leg portion 7h in the longitudinal direction of the rectangular flat plate portion 7 g. There are four leg portions 7h in total, and two of the leg portions 7h are provided along the short side of the rectangular flat plate portion 7 g. The leg portion 7h has flexibility with respect to the flat plate portion 7g so as to be able to bend toward the side opposite to the claw 7 j.

The cover 7a has a through hole 7fa penetrating the flat plate portion 7g in the thickness direction of the flat plate portion 7 g. In the front view, the through hole 7fa penetrates one end (first end) of the flat plate portion 7g in the longitudinal direction of the antenna housing portion 7 c. The cover 7a includes a restricting portion 7s on a second end (the other end) away from the through hole 7fa in the longitudinal direction of the antenna housing portion 7 c. The restricting portion 7s protrudes to continue from the flat plate portion 7g to the antenna accommodating portion 7 c.

The box body 7b includes a rectangular-shaped bottom wall portion 7b1, a pair of first side wall portions 7b2, and a pair of second side wall portions 7b 3. The case 7b serves as a communication circuit housing portion 7p for housing the communication circuit 2 b. The pair of first side wall portions 7b2 each extend along and protrude from a long side of the bottom wall portion 7b1, and face each other, of the bottom wall portion 7b 1. The pair of second side wall portions 7b3 each extend along and protrude from a short side of the bottom wall portion 7b1, and face each other. The box body 7b includes a bottom wall portion 7b1 having a rectangular shape, the pair of first side wall portions 7b2, and the pair of second side wall portions 7b3, and is box-shaped having one open face. The box body 7b further includes terrace portions 7b4 protruding sideways from the respective second side wall portions 7b3 in the longitudinal direction of the bottom wall portion 7b 1. As shown in fig. 6, the terrace portion 7b4 includes a threaded portion 7r to which a screw 7e is fixed.

One of the pair of second side wall portions 7b3 is provided with a pair of ribs 7k for sandwiching the first side edge of the circuit substrate 6 therebetween. The rib 7k protrudes from the bottom wall portion 7b1 along the second side wall portion 7b 3. A groove 7m for accommodating the second side edge of the circuit substrate 6 is formed in the other of the pair of second side wall portions 7b 3. According to the case 7b, the second region 6cb side of the circuit substrate 6 on which the communication circuit 2b is provided can be held by the rib 7k and the groove 7 m. The circuit substrate 6 is electrically connected to the wiring harness 2 f. A connector 2h is provided at one end of the wiring harness 2 f. The wiring harness 2f is bound with a binding band 2 g. For example, the strap 2g has an elongated strip shape and includes a locking element having a tubular shape at a first end. The binding band 2g can bind the wiring harness 2f by inserting the second end of the binding band 2g into the locking member.

One of the pair of first side wall portions 7b2 is provided with a notch 7n formed in the edge of the opening side of the box body 7 b. According to the wireless communication section 2, the notch 7n allows the wiring harness 2f to extend from the inside to the outside of the housing case 7. The case body 7b of the accommodation case 7 is provided with a cavity 7t for accommodating the binding band 2 g. According to the housing box 7, the binding band 2g for binding the wire bundle 2f is housed in the cavity 7t, so the cavity 7t can function as a tension stopper (tension stopper) that functions when the wire bundle 2f is pulled with respect to the housing box 7.

The accommodation case 7 is provided with an engagement groove 7u that engages with the claw 7 j. According to the accommodation box 7, the cover 7a is placed on the box body 7b to close the opening of the box body 7b, and the claw 7j of the leg portion 7h is engaged with the engaging groove 7u, whereby the cover 7a and the box body 7b are fixed together. According to the wireless communication section 2, the communication circuit 2b is configured to generate a dimming signal based on a signal received by the antenna section 2a, and output the dimming signal through the wiring harness 2 f.

The wireless communication section 2 has not only a configuration for performing wireless communication using radio waves as a medium but also a configuration for performing infrared communication using infrared rays as a medium. In the wireless communication section 2, a photosensor 6e for receiving infrared rays is mounted on the second region 6cb of the circuit substrate 6. The photosensitive element 6e may be a photodiode, phototransistor, or the like. The photosensor 6e is configured to receive an infrared signal through the through hole 7fa of the cover 7 a.

When a plurality of light source units 10 are grouped together into a group, the wireless communication section 2 is configured to receive a control signal for a specific group to which the light source unit 10 belongs. The light source unit 10 of the group is configured to perform dimming control based on a signal received by the wireless communication section 2 of the light source unit 10. Each of the plurality of light source units 10 is configured to adjust the light output of its light source section 1 based on an infrared signal. For example, the light source unit 10 is configured to receive an infrared signal emitted from an external remote controller, thereby controlling the light output of the light source unit 10. The light source unit 10 can set an address (address) for identifying itself with the other light source units 10 in response to an infrared signal emitted from the remote controller.

Incidentally, the light output of the light source unit 10 may increase as the number of the light emitting elements 1a disposed near the end portion in the longitudinal direction of the light source section 1 increases. Meanwhile, when the antenna housing portion 7c housing the antenna portion 2a protrudes further toward the inner bottom surface 5ab of the cover member 5, the communication performance of the light source unit 10 can be improved.

In this regard, in the light source unit including the wireless communication section 2 according to the reference embodiment shown in fig. 11, when the distance between the light emitting element 1a and the end portion in the longitudinal direction of the light source section 1 is reduced, there is a possibility that direct light from the light emitting element 1a is blocked due to the increase of the antenna housing section 7 c. Also, in the light source unit, when the protruding distance of the antenna housing portion 7c toward the cover member 5 is increased, there is a possibility that direct light from the light emitting element 1a is blocked due to the increase of the antenna housing portion 7 c. Therefore, in the light source unit of the reference embodiment, if it is modified to increase the light output, there is a possibility that the direct light from the light emitting element 1a is blocked by the antenna accommodating portion 7c, which may generate a shadow that the antenna accommodating portion 7c is projected on the cover main body 5 a. In fig. 11, direct light from the light emitting element 1a is indicated by a two-dot chain line with an arrow, and an area of the cover main body 5a where a shadow may be cast is surrounded by a broken line.

According to the wireless communication section 2 of the light source unit 10 of the present embodiment, the antenna housing section 7c has an outer shape in a (rectangular) plate shape. The cover member 5 extends in the longitudinal direction of the support member 4. The antenna housing portion 7c is provided to intersect the longitudinal direction of the light source portion 1. The surface of the end portion 7f facing the cover member 5 is an inclined surface 7fb, and the distance between the inclined surface 7fb and the inner bottom surface 5ab increases toward the light source section 1 in the longitudinal direction of the light source section 1. In other words, the surface of the end portion 7f facing the cover member 5 is an inclined surface 7fb, and the distance between the inclined surface 7fb and the opening 4aa decreases toward the light source unit 1 in the longitudinal direction of the light source unit 1.

According to the light source unit 10 of the present embodiment, since the end portion 7f of the antenna housing portion 7c has the inclined surface 7fb, it is possible to avoid the shadow of the antenna housing portion 7c from being projected on the cover main body 5a while increasing the light output.

The process of assembling the light source unit 10 of the present embodiment will be described below.

In the process of assembling the light source unit 10, the light source section 1 in which the light emitting element 1a is mounted on the mounting substrate 1b is attached to the attachment section 4a of the support member 4. Note that, as shown in fig. 6, in the present embodiment, the support member 4 includes an engaging piece 4t protruding from the surface of the bottom portion 4 cb. The engaging member 4t includes a first male member 4ta and a second male member 4 tb. The first convex piece 4ta protrudes from the surface of the bottom portion 4 cb. The second convex piece 4tb protrudes from one end of the first convex piece 4ta toward the wireless communication part 2 in the longitudinal direction of the support member 4. The engaging piece 4t has an L-shape including a first male piece 4ta and a second male piece 4 tb. A pair of engaging pieces 4t facing each other are provided in the width direction of the mounting substrate 1 b. The mounting substrate 1b has a cut groove (cut grooves)1bd formed in the thickness direction of the mounting substrate 1b, and the mounting substrate 1b is sandwiched between the pair of bonding members 4t in the region of the cut groove 1 bd.

Next, the wireless communication section 2 is attached such that the antenna housing section 7c protrudes toward the side of the support member 4 opposite to the side of the attachment section 4a on which the mounting substrate 1b is mounted, from the opposite side of the attachment section 4 a. The wireless communication part 2 is attached to the support member 4 such that the first projection 4ta of the joint 4t abuts against the edge of the cut groove 1bd of the mounting substrate 1 b.

Note that, in the light source unit 10 of the present embodiment, the accommodation box 7 includes the restriction portion 7s that faces the light source section 1 and restricts directional movement in the longitudinal direction of the light source section 1.

The light source unit 10 is designed such that: in the case where the light source section 1 and the wireless communication section 2 are attached to the support member 4, the distance between the restriction section 7s and the second convex piece 4tb is smaller than the size of the portion between the restriction section 7s and the first convex piece 4ta of the light source section 1.

According to the light source unit 10, the restriction portion 7s can restrict the directional movement in the longitudinal direction of the light source portion 1, and then the wireless communication portion 2 functions as a stopper of the light source portion 1. According to the light source unit 10 of the present embodiment, the mount substrate 1b can be fixed to the support member 4 without the need to bend the joint 4s, as compared with embodiment 1.

Subsequently, the wireless communication part 2 is positioned such that the antenna housing part 7c protrudes from the opening 4aa of the support member 4 toward the cover member 5, and then the screw 7e is fixed to the threaded part 7r of the housing box 7 with the support member 4 interposed therebetween, whereby the wireless communication part 2 is fixed to the support member 4.

Next, the cover member 5 is attached to the support member 4 to cover the mounting substrate 1 b. In this process, the projection 5e of the cover member 5 is fitted to the projection 4e of the support member 4. Specifically, a pair of projections 5e are respectively hung on the protruding portions 4e of the support member 4, whereby the cover member 5 is attached to the support member 4. Note that the protruding wall portion 5d of the cover member 5 is appropriately fixed to the side wall portion 4b of the support member 4 by a screw, whereby the cover member 5 and the support member 4 can be fixed to form an integral body. The cover end portions 5b are attached to opposite ends in the longitudinal direction of the integrated body formed by the cover member 5 and the support member 4. Thus, the light source unit 10 can be assembled.

As with embodiment 1, the light source unit 10 of the present embodiment can be attached to the fixture body 31 to constitute the lighting fixture 30 together with the fixture body 31.

As is apparent from the above-described embodiments, the light source unit of the first aspect of the present invention includes the light source part 1, the wireless communication part 2, and the holding body 3. The wireless communication section 2 is configured to perform wireless communication using radio waves as a medium. The holder 3 holds the light source unit 1 and the wireless communication unit 2. The holding body 3 includes a support member 4 and a cover member 5. The support member 4 is made of a metal material and supports the light source unit 1. The cover member 5 is attached to the support member 4 to cover the support member 4, thereby forming an accommodation space 10aa between the support member 4 and the cover member 5. The wireless communication unit 2 includes an antenna unit 2a and a communication circuit 2 b. The communication circuit 2b is electrically connected to the antenna portion 2a, and is configured to perform at least one of transmission and reception of radio waves through the antenna portion 2 a. The cover member 5 allows radio waves to pass therethrough. The antenna portion 2a is disposed in the accommodating space 10 aa.

According to the light source unit of the second aspect of the present invention, and considered in conjunction with the first aspect, the cover member 5 is made of a resin material that is transparent to radio waves.

According to the light source unit of the third aspect of the present invention, considering in conjunction with the first or second aspect, the cover member 5 can transmit light emitted from the light source section 1.

According to the light source unit of the fourth aspect of the present invention, and considered in conjunction with any one of the first to third aspects, the wireless communication section 2 includes the circuit substrate 6 and the accommodation box 7 for accommodating the circuit substrate 6. The circuit board 6 has a first region 6ca provided with the antenna portion 2a and a second region 6cb provided with the communication circuit 2 b. The first region 6ca is disposed within the accommodating space 10 aa. The accommodation box 7 allows radio waves to pass therethrough.

According to the light source unit of the fifth aspect of the present invention, and considered in conjunction with the fourth aspect, the accommodation box 7 is made of a resin material that is transparent to radio waves.

According to the light source unit of the sixth aspect of the present invention, considered in conjunction with the fourth or fifth aspect, the antenna portion 2a is constituted by a patterned conductor provided for the first region 6ca of the circuit substrate 6.

According to the light source unit of the seventh aspect of the present invention, considered in combination with any one of the fourth to sixth aspects, the support member 4 includes the attachment portion 4a in a plate shape, and the light source section 1 is attached to the attachment portion 4 a. The support member 4 has an opening 4aa that penetrates the attachment portion 4a in the thickness direction of the attachment portion 4 a. The accommodation box 7 includes an antenna accommodation portion 7c in which the antenna portion 2a is disposed. The antenna receiving part 7c is inserted into the opening 4aa to protrude toward the cover member 5, so as to be disposed in the receiving space 10aa,

according to the light source unit of the eighth aspect of the present invention, and considered in conjunction with the seventh aspect, the housing box 7 includes the communication circuit housing portion 7p in which the communication circuit 2b is provided. The communication circuit housing part 7p is disposed at a position on the opposite side of the support member 4 from the housing space 10 aa.

According to the light source unit of the ninth aspect of the present invention, and considered in conjunction with the seventh or eighth aspect, each of the light source section 1, the holding body 3, and the cover member 5 has an elongated shape. The antenna housing portion 7c has an end portion 7f facing the inner bottom surface 5ab of the cover member 5. The end portion 7f has a contour following the shape of a portion of the inner bottom surface 5ab of the cover member 5 facing the end portion 7f when viewed in the longitudinal direction of the cover member 5.

According to the light source unit of the tenth aspect of the present invention, and considered in conjunction with the ninth aspect, the antenna housing portion 7c has the shape of a rectangular plate. The antenna housing portion 7c protrudes from the opening 4aa in a direction intersecting the longitudinal direction of the light source portion 1. The end portion 7f has a face facing the cover member 5, and the face is an inclined face 7fb, the distance of which inclined face 7fb from the opening 4aa decreases toward the light source section 1 in the longitudinal direction of the light source section 1.

According to the light source unit of the eleventh aspect of the present invention, considered in conjunction with the ninth aspect, the antenna housing portion 7c of the wireless communication portion 2 has a plate-like outer shape. The cover member 5 extends in the longitudinal direction of the support member 4. The antenna housing portion 7c protrudes from the opening 4aa in a direction intersecting the longitudinal direction of the light source portion 1. The end portion 7f has a face facing the cover member 5, and the face is an inclined face 7fb whose distance from the inner bottom face 5ab increases toward the light source section 1 in the longitudinal direction of the light source section 1.

According to the light source unit of the twelfth aspect of the present invention, and considered in conjunction with any one of the ninth to eleventh aspects, the accommodation box 7 includes the restriction portion 7s, the restriction portion 7s facing one end of the light source section 1 in the longitudinal direction and configured to restrict directional movement of the light source section 1 in the longitudinal direction.

According to the light source unit of the thirteenth aspect of the present invention, considering in conjunction with any one of the first to twelfth aspects, the cover member 5 has a plurality of faces 50 each facing the light source section 1. The wireless communication unit 2 is provided in the vicinity of the surface having the smallest area among the plurality of surfaces 50.

The lighting fixture of the present invention includes the light source unit 10 according to any one of the first to thirteenth aspects and the fixture body 31 holding the light source unit 10.

Reference numerals:

1 light source unit

2 Wireless communication unit

2a antenna part

2b communication circuit

3 holding body

4 support member

4a attachment

4aa opening

5 covering component

5ab inner bottom surface

More than 50 faces

6 Circuit board

6ca first region

6cb second region

7 hold the box

7c antenna housing

7f end part

7fb inclined plane

7p communication circuit housing

7s restriction part

10 light source unit

10aa accommodation space

30 Lighting device

31 appliance body

Claims

1. A light source unit comprising:

a light source unit;

a wireless communication section configured to perform wireless communication using radio waves as a medium; and

a holder that holds the light source unit and the wireless communication unit,

the holding body includes:

a support member made of a metal material and supporting the light source part; and

a cover member attached to the support member to cover the support member, thereby forming an accommodation space between the support member and the cover member,

the wireless communication unit includes:

an antenna section; and

a communication circuit electrically connected to the antenna portion and configured to perform at least one of transmission and reception of radio waves through the antenna portion,

the covering member allows radio waves to pass therethrough, an

The antenna part is arranged in the accommodating space,

wherein the wireless communication section includes:

a circuit substrate, and

a housing box for housing the circuit substrate;

the circuit board includes:

a first area provided with the antenna portion, and

a second region provided with the communication circuit;

the first region is disposed in the accommodation space, an

The housing box allows radio waves to pass therethrough,

wherein the support member includes an attachment portion in a plate shape to which the light source portion is attached, the support member having an opening penetrating the attachment portion in a thickness direction of the attachment portion,

the accommodation box includes an antenna accommodation portion in which the antenna portion is provided and a communication circuit accommodation portion in which the communication circuit is provided and which has a shape that is not allowed to be inserted into the opening,

the antenna accommodating portion is inserted into the opening to protrude toward the cover member so as to be disposed within the accommodating space, an

The communication circuit accommodating portion is provided on a side of the support member opposite to the accommodating space,

the antenna receiving part has a rectangular plate shape,

the antenna accommodating portion protrudes from the opening in a direction intersecting with a longitudinal direction of the light source portion, an

An end portion of the antenna housing portion has a face facing the cover member, the face being an inclined face, and a distance of the inclined face from the opening decreases toward the light source portion in a longitudinal direction of the light source portion.

2. The light source unit according to claim 1, characterized in that:

the covering member is made of a resin material that is transparent to radio waves.

3. The light source unit according to claim 1 or 2, characterized in that:

the cover member is capable of transmitting light emitted from the light source section.

4. The light source unit according to claim 1 or 2, characterized in that:

the housing box is made of a resin material that is transparent to radio waves.

5. The light source unit according to claim 1 or 2, characterized in that:

the antenna portion is constituted by a patterned conductor for the first region of the circuit substrate.

6. The light source unit according to claim 1, characterized in that:

the accommodation box includes a restriction portion facing one end of the light source portion in the longitudinal direction and configured to restrict a longitudinal directional movement of the light source portion.

7. The light source unit according to claim 1, characterized in that:

the cover member has a plurality of faces each facing the light source section, an

The wireless communication section is provided in the vicinity of a surface that receives a minimum amount of light of the light source section in the light source unit.

8. The light source unit according to claim 1, characterized in that:

the surface of the circuit substrate on which the antenna portion is formed is perpendicular to the longitudinal direction of the support member.

9. A light source unit comprising:

a light source unit;

a holder that holds the light source unit and the wireless communication unit,

the holding body includes:

the wireless communication unit includes:

an antenna section; and

the covering member allows radio waves to pass therethrough, an

The antenna part is arranged in the accommodating space,

wherein the wireless communication section includes:

a circuit substrate, and

a housing box for housing the circuit substrate;

the circuit board includes:

a first area provided with the antenna portion, and

a second region provided with the communication circuit;

the first region is disposed in the accommodation space, an

The housing box allows radio waves to pass therethrough,

the antenna housing portion of the wireless communication portion has a plate-like outer shape,

the cover member extends in a longitudinal direction of the support member,

The cover member has an inner bottom surface and an end portion of the antenna housing portion has a surface facing the cover member, the surface being an inclined surface, and a distance of the inclined surface from the inner bottom surface increases toward the light source portion in a longitudinal direction of the light source portion.

10. A lighting fixture, comprising:

the light source unit according to any one of claims 1 to 9; and

an appliance body holding the light source unit.