JP2023144010A - Luminaire - Google Patents

Abstract

An object of the present invention is to provide a lighting fixture in which a communication module can be easily replaced. A lighting fixture (100) includes a light source (73), a power supply device (31), a connector (5), a light source board (70), and a communication module (4). The light source 73 emits light. The power supply device 31 supplies power to the light source 73. Connector 5 connects to power supply device 31 . The connector 5 is provided so that the communication module 4 can be attached and detached. The connector 5 is arranged at a position overlapping the light source board 70. A light source 73 is arranged on the light source board 70 . The communication module 4 has an antenna 423 that receives radio waves. A through hole 75 through which the antenna 423 can pass is formed in the light source board 70. Antenna 423 protrudes from light source board 70. [Selection diagram] Figure 3

Description

TECHNICAL FIELD The present invention relates to lighting equipment.

Luminaires have been proposed that include wireless communication devices. The lighting fixture described in Patent Document 1 includes a fixture body and a lighting unit. The lighting unit includes a mounting plate, a light source unit, and a wireless communication device. The wireless communication device includes an antenna and a housing. The housing is fixed to the mounting plate with the antenna housing portion (antenna) inserted through the slit.

JP2017-91958A

However, in the lighting fixture described in Patent Document 1, since the communication module (wireless communication device) is fixed to the lighting fixture, the communication module cannot be easily removed from the lighting fixture. Therefore, the communication module cannot be easily replaced.

The present invention has been made in view of the above problems, and its purpose is to provide a lighting fixture whose communication module can be easily replaced.

The lighting fixture disclosed in this application includes a light source, a power supply device, a connector, a light source board, and a communication module. The light source emits light. The power supply device supplies power to the light source. The connector connects to the power supply device. The connector is provided so that the communication module can be attached and detached. The connector is arranged at a position overlapping the light source board. The light source is arranged on the light source board. The communication module has an antenna that receives radio waves. A through hole through which the antenna can pass is formed in the light source substrate. The antenna protrudes from the light source board.

According to the lighting fixture according to the present invention, the communication module can be easily replaced.

It is a figure showing the lighting fixture concerning this embodiment. FIG. 1 is an exploded perspective view showing the configuration of a lighting fixture according to the present embodiment. FIG. 1 is an exploded perspective view showing the configuration of a lighting fixture according to the present embodiment. FIG. 2 is a perspective view showing the configuration of a wireless communication unit according to the present embodiment. (a) is a schematic plan view showing a power supply device and a connector. (b) and (c) are schematic perspective views showing the vicinity of the connector. FIG. 3 is a schematic cross-sectional view showing the vicinity of the connector. FIG. 3 is a schematic cross-sectional view showing the vicinity of the connector. It is an exploded perspective view showing composition of a main part, a light source part, and a light source cover concerning this embodiment. 9 is a schematic partial cross-sectional view of the main body, the light source, and the light source cover shown in FIG. 8. FIG.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in the drawings, the same or corresponding parts are given the same reference numerals and the description will not be repeated.

First, with reference to FIG. 1, a lighting fixture 100 according to the present embodiment will be described. FIG. 1 is a diagram showing a lighting fixture 100 according to this embodiment.

As shown in FIG. 1, the lighting fixture 100 is attached to a mounting surface such as a ceiling surface C. In this embodiment, the lighting fixture 100 is a ceiling light that is approximately circular in plan view.

Next, the configuration of the lighting fixture 100 according to this embodiment will be described with reference to FIGS. 2 and 3. 2 and 3 are exploded perspective views showing the configuration of the lighting fixture 100 according to this embodiment. Specifically, FIG. 2 shows the lighting fixture 100 from above. FIG. 3 shows the lighting fixture 100 viewed from below.

As shown in FIGS. 2 and 3, the lighting fixture 100 includes a main body cover 1, an adapter 2, a power supply section 3, a wireless communication section 4 (FIG. 3), a connector 5, a main body section 6, a light source section 7, a light source cover 8, and shade 9. In the following, this embodiment will be described with the side of the lighting fixture 100 where the main body cover 1 is provided as the "upper side of the lighting fixture 100" and the opposite side being the "lower side of the lighting fixture 100." Further, this embodiment will be described with the radial direction when the lighting fixture 100 is viewed from above as the "radial direction DR."

The main body cover 1 is connected to the main body part 6. In this embodiment, the main body cover 1 is connected to the main body part 6 by a fastening member such as a screw. The main body cover 1 is a metal plate-like member. The main body cover 1 is preferably made of a material that absorbs heat emitted from at least one of the light source section 7 and the power supply section 3 and radiates the heat to the outside. The main body cover 1 includes, for example, metal such as iron.

Adapter 2 supplies external power supply voltage to power supply section 3 . The adapter 2 includes a connecting member 21 and a wiring member 22. The connecting member 21 connects the wiring member 22 and the main body cover 1. The wiring member 22 electrically connects the power supply section 3 and the socket. The socket is provided on the ceiling surface C. The adapter 2 is, for example, a hook ceiling adapter.

The power supply unit 3 supplies power to the wireless communication unit 4 and the light source unit 7. Specifically, the power supply section 3 supplies power to the wireless communication section 4 and the light source 73 of the light source section 7 . The power supply unit 3 includes a power supply device 31 and a power supply case 32. Power supply device 31 includes a power supply circuit and a power control circuit. The power supply circuit converts an external power supply voltage supplied via the adapter 2 into an internal power supply voltage. The power supply circuit supplies internal power supply voltage to the wireless communication section 4 and the light source section 7. The power control circuit controls the internal power supply voltage supplied by the power supply circuit. Specifically, the internal power supply voltage is controlled so that the current value of the current supplied by the power supply circuit becomes a constant value corresponding to the communication signal transmitted from the wireless communication unit 4. As a result, light having a light amount and correlated color temperature corresponding to the communication signal transmitted from the wireless communication unit 4 is emitted from the lighting fixture 100. The power supply device 31 is housed in a power supply case 32. The power supply case 32 is arranged in the main body part 6. A through hole 321 is formed in the power supply case 32 . The wireless communication unit 4 can pass through the through hole 321 .

The wireless communication unit 4 communicates with communication devices that perform wireless communication using the same communication standard. Specifically, the wireless communication unit 4 receives at least a signal (radio wave) transmitted from a communication device. The wireless communication unit 4 is an example of a "communication module." The wireless communication unit 4 according to this embodiment transmits and receives various signals (radio waves) to and from communication devices. The wireless communication unit 4 and the communication device, for example, mutually transmit and receive setting signals for pairing the wireless communication unit 4 and the communication device. By pairing the wireless communication unit 4 and the communication device, wireless communication becomes possible between the wireless communication unit 4 and the communication device. In this embodiment, the wireless communication unit 4 performs wireless communication using a short-range wireless standard such as ZIGBEE (registered trademark). The communication device also transmits a signal that controls at least one of the amount of light and the correlated color temperature of the light emitted from the lighting fixture 100. The communication device is, for example, a bridge connected to a network. Note that the communication device is not limited to a bridge, and may be, for example, a router connected to a network. The network is, for example, a wireless LAN (Local Area Network). Alternatively, the communication device may be a smartphone.

The wireless communication unit 4 is connected to the power supply device 31 via the connector 5. The wireless communication unit 4 transmits a communication signal to the power supply device 31 according to radio waves received from a communication device. The communication signal is, for example, a control signal that controls at least one of the amount of light and the correlated color temperature of the light emitted from the lighting fixture 100. Additionally, the wireless communication unit 4 receives a signal indicating the state of the lighting fixture 100 from the power supply device 31. The wireless communication unit 4 transmits a signal (radio wave) indicating the status of the lighting fixture 100 to a communication device. The signal indicating the state of the lighting fixture 100 indicates, for example, at least one of a dimming state and a toning state of the lighting fixture 100.

The wireless communication section 4 is inserted into the connector 5 . Connector 5 connects to power supply device 31 . The connector 5 is provided with the wireless communication section 4 in a detachable manner. For example, the wireless communication unit 4 can be inserted into the connector 5 . By inserting the wireless communication section 4 into the connector 5, the wireless communication section 4 can be easily attached to the connector 5. Therefore, the wireless communication unit 4 can be easily attached to the lighting fixture 100. Further, by pulling out the wireless communication section 4 from the connector 5, the wireless communication section 4 can be easily removed from the connector 5. In this way, the lighting fixture 100 allows the wireless communication unit 4 to be easily attached or removed. Therefore, in the lighting fixture 100, the wireless communication section 4 can be easily replaced. In this manner, the lighting fixture 100 can easily attach or remove the wireless communication section 4 by inserting and removing the wireless communication section 4 with appropriate force without using other fixing members such as screws.

In this embodiment, the connector 5 is provided with the wireless communication section 4 detachably attached to it from the output surface 73a side. The connector 5 is arranged at a position overlapping the light source board 70.

The main body part 6 supports the main body cover 1 , the adapter 2 , the power supply part 3 , the light source part 7 , the light source cover 8 , and the shade 9 . The main body part 6 has a main body chassis 61 and a metal fitting 62. The main body chassis 61 is a disk-shaped metal member whose central portion is recessed downward. The material of the main body chassis 61 is preferably a material that absorbs heat generated from the light source section 7 and radiates the heat to the outside. The main body chassis 61 includes, for example, a metal such as iron.

The main body chassis 61 has a first holding surface 61a and a second holding surface 61b opposite to the first holding surface 61a. The first holding surface 61a and the second holding surface 61b are parallel. In this embodiment, the first holding surface 61a constitutes the upper surface of the main body chassis 61, and the second holding surface 61b constitutes the lower surface of the main body chassis 61. The main body chassis 61 is an example of a "power supply housing section."

The main body chassis 61 has an opening 611 , a housing space 612 , an inner peripheral part 613 , an intermediate part 614 , and an outer peripheral part 615 . The opening 611 is provided approximately at the center of the main body chassis 61. The opening 611 penetrates the main body chassis 61. The shape of the opening 611 is approximately circular in plan view. The adapter 2 is inserted into the opening 611.

The accommodation space 612 is provided in a recessed portion of the main body chassis 61. Specifically, the accommodation space 612 is provided on the first holding surface 61a side of the main body chassis 61. The housing space 612 is open at the top. Accommodation space 612 is provided along the outer periphery of opening 611 . The accommodation space 612 is configured by the first holding surface 61a of the inner peripheral portion 613 and the first holding surface 61a of the intermediate portion 614.

The power supply section 3 is arranged in the accommodation space 612. In other words, the power supply section 3 is arranged on the first holding surface 61a side of the main body chassis 61. Therefore, the main body chassis 61 accommodates the power supply device 31.

The inner peripheral portion 613 extends outward from the opening 611 in the radial direction DR. The intermediate portion 614 extends from the outer edge of the inner peripheral portion 613 to the outside in the radial direction DR. Specifically, the shape of the intermediate portion 614 is an upward slope that becomes higher toward the outside in the radial direction DR. The outer peripheral portion 615 extends from the outer edge of the intermediate portion 614 toward the outside in the radial direction DR.

The main body cover 1 is arranged on the first holding surface 61a. The main body cover 1 is connected to the main body chassis 61 so as to cover the accommodation space 612. When the main body cover 1 and the main body chassis 61 are connected, the power supply section 3 is covered by the main body cover 1.

The metal fitting 62 is arranged on the second holding surface 61b of the main body chassis 61. The main body chassis 61 holds the shade 9 via a metal fitting 62.

The light source section 7 emits light. The light source section 7 has a light source substrate 70. In this embodiment, the light source section 7 has two light source substrates 70. The light source board 70 is a printed circuit board. The light source substrate 70 includes, for example, glass epoxy resin as a material.

Each light source substrate 70 has a first substrate surface 70a and a second substrate surface 70b opposite to the first substrate surface 70a. The first substrate surface 70a and the second substrate surface 70b are parallel. In this embodiment, the first substrate surface 70a constitutes the lower surface of the light source substrate 70, and the second substrate surface 70b constitutes the upper surface of the light source substrate 70.

Each of the two light source substrates 70 has a substantially semicircular shape in plan view. The two light source substrates 70 are arranged on the second holding surface 61b side of the main body chassis 61 so as to form a substantially annular shape in a plan view. Specifically, the two light source boards 70 are arranged on the main body chassis 61 so that the second board surface 70b contacts the second holding surface 61b. In this embodiment, the two light source boards 70 are connected to the main body chassis 61 by a fastening member such as a screw.

A through hole 75 is formed in one of the two light source substrates 70 . The wireless communication unit 4 can pass through the through hole 75 . Hereinafter, of the two light source boards 70, the light source board 70 facing the wireless communication unit 4 will be referred to as the "first light source board 71", and the other light source board 70 will be referred to as the "second light source board 72".

The light source section 7 further includes a plurality of light sources 73 and two light source board connectors 74. The light source 73 is, for example, an SMD (Surface Mount Device) chip.

The plurality of light sources 73 emit light. The plurality of light sources 73 have exit surfaces 73a. The plurality of light sources 73 emit light to the exit surface 73a side. In this embodiment, the output surface 73a side is the lower side. The plurality of light sources 73 are distributed and arranged on the first substrate surface 70a of the first light source substrate 71 and the first substrate surface 70a of the second light source substrate 72. Hereinafter, among the plurality of light sources 73, the light source 73 disposed on the first substrate surface 70a of the first light source substrate 71 will be referred to as "first light source 731", and the light source 73 disposed on the first substrate surface 70a of the second light source substrate 72 will be referred to as "first light source 731". The light source 73 that is used is referred to as a "second light source 732." A plurality of first light sources 731 are arranged on the first substrate surface 70a of the first light source substrate 71. A plurality of second light sources 732 are arranged on the first substrate surface 70 a of the second light source substrate 72 .

The two light source board connectors 74 are arranged on the first board surface 70a of the first light source board 71 and the first board surface 70a of the second light source board 72, respectively. Hereinafter, the light source board connector 74 arranged on the first board surface 70a of the first light source board 71 will be referred to as "first light source board connector 741", and the light source board connector 74 arranged on the first board surface 70a of the second light source board 72 will be referred to as "first light source board connector 741". The board connector 74 will be referred to as a "second light source board connector 742." The first light source board connector 741 and the second light source board connector 742 are each connected to the power supply device 31 via a power line.

The first light source board connector 741 electrically connects to the plurality of first light sources 731. The first light source 731 is supplied with an internal power supply voltage from the power supply section 3 via the first light source board connector 741. The second light source board connector 742 electrically connects to the plurality of second light sources 732. The second light source 732 is supplied with internal power supply voltage from the power supply unit 3 via the second light source board connector 742. Each light source 73 emits light when supplied with an internal power supply voltage.

The light source cover 8 covers the light source section 7. The light source cover 8 has a substantially annular shape in plan view. The light source cover 8 is connected to the main body chassis 61 so as to cover the light source section 7. The light source cover 8 is connected to the main body chassis 61 by a fastening member such as a screw, for example. In this embodiment, the light source cover 8 diffuses the light emitted from the plurality of light sources 73. It is preferable that the light source cover 8 includes a material that prevents radio waves transmitted and received by the wireless communication unit 4 from being blocked. The light source cover 8 includes resin as a material, for example.

The shade 9 is removably disposed on the second holding surface 61b of the main body chassis 61 via a metal fitting 62. When the shade 9 is placed on the second holding surface 61b, the light source section 7 and the light source cover 8 are covered by the shade 9. It is preferable that the shade 9 includes a material that prevents radio waves transmitted and received by the wireless communication unit 4 from being blocked. The shade 9 includes resin as a material, for example.

The lighting fixture 100 further includes a buffer member 100c. The buffer member 100c suppresses movement of the lighting fixture 100 with respect to the ceiling surface C. The buffer member 100c suppresses wobbling of the lighting fixture 100.

Next, with reference to FIG. 4, the configuration of the wireless communication unit 4 according to this embodiment will be described. FIG. 4 is a perspective view showing the configuration of the wireless communication section 4 according to this embodiment.

As shown in FIG. 4, the wireless communication unit 4 includes a main body board 41, an antenna board 42, a switch button 43, a lamp 44, a communication control circuit 45, and a terminal part 46.

As shown in FIG. 4, the main body substrate 41 has a first main body substrate surface 41a and a second main body substrate surface 41b opposite to the first main body substrate surface 41a. An antenna board 42, a switch button 43, and a lamp 44 are arranged on the first main body board surface 41a.

Antenna board 42 includes an antenna 423. Antenna 423 transmits or receives radio waves used for wireless communication. The antenna substrate 42 has a first antenna substrate surface 42a and a second antenna substrate surface 42b opposite to the first antenna substrate surface 42a. The antenna 423 is provided on the second antenna substrate surface 42b. When the antenna substrate 42 is placed on the first main body substrate surface 41a, the first antenna substrate surface 42a and the first main body substrate surface 41a are parallel. Specifically, the first antenna substrate surface 42a contacts the first main body substrate surface 41a. Note that the second antenna substrate surface 42b is an example of an "antenna mounting surface."

Antenna substrate 42 has an antenna region 421. Antenna 423 is provided in antenna region 421. The antenna region 421 has a substantially rectangular shape in plan view. The antenna 423 is, for example, a metal pattern formed on the antenna substrate 42.

The switch button 43 is operated by a worker to reset the operation of the communication control circuit 45, for example.

The lamp 44 notifies the communication state or abnormal state of the communication control circuit 45 by blinking or lighting up. The lamp 44 is, for example, an LED.

Communication control circuit 45 controls wireless communication. Communication control circuit 45 generates a communication signal based on radio waves received by antenna 423.

The terminal section 46 is electrically connected to the connector 5 when the wireless communication section 4 is attached to the connector 5. Therefore, while the wireless communication unit 4 is attached to the connector 5, it is connected to the power supply device 31 via the connector 5. The communication signal generated by the communication control circuit 45 is transmitted to the power supply device 31 via the terminal section 46 and the connector 5. The power control circuit controls the power supplied by the power supply circuit based on the communication signal. As a result, the lighting state of the plurality of light sources 73 becomes a state corresponding to the communication signal.

The power control circuit also transmits a signal indicating the state of the power supply section 3 to the terminal section 46 . The communication control circuit 45 causes the antenna 423 to generate a signal indicating the state of the power supply section 3 . As a result, the communication device receives a signal indicating the state of the power supply section 3.

Next, attachment of the wireless communication unit 4 to the connector 5 according to the present embodiment will be described with reference to FIGS. 5(a) to 5(c) and FIG. 6. FIG. 5A is a schematic plan view showing the power supply device 31 and the connector 5. FIG. 5(b) and 5(c) are schematic perspective views showing the vicinity of the connector 5. FIG. FIG. 6 is a schematic cross-sectional view showing the vicinity of the connector 5. FIGS. 5(a) to 5(c) are views seen from below. FIG. 5(b) is a schematic perspective view showing a state before the wireless communication unit 4 is attached. FIG. 5(c) is a schematic perspective view showing a state in which the wireless communication unit 4 is attached. FIG. 6 is a schematic cross-sectional view showing a state in which the wireless communication section 4 is attached.

As shown in FIG. 5A, the power supply device 31 includes a power supply circuit 311, a power control circuit 312, and a power supply board 313. Note that the power supply circuit 311 is composed of electronic components such as a transformer, but these are shown in a simplified manner in FIG. 5(a). The power supply board 313 is a printed circuit board. The power supply board 313 includes, for example, glass epoxy resin as a material. The connector 5 , the power supply circuit 311 , and the power control circuit 312 are arranged on the power supply board 313 . Connector 5, power supply circuit 311, and power control circuit 312 are connected via a conductive pattern.

As shown in FIG. 5(b), the connector 5 includes a main body portion 51, an insertion port 52, and a terminal portion 53. The main body portion 51 has, for example, a substantially rectangular parallelepiped shape. The insertion port 52 is provided in the main body portion 51 . A terminal portion 53 is provided on the inner peripheral surface of the insertion port 52 . Note that the terminal section 46 of the wireless communication section 4 includes a plurality of electrodes. In FIG. 5(b), the electrodes of the terminal portion 46 are simply illustrated. Further, the terminal portion 53 is composed of a plurality of electrodes corresponding to the electrodes of the terminal portion 46. In FIG. 5B, since the terminal portion 53 is provided at a position that cannot be visually seen, the description of the plurality of electrodes is omitted.

By moving the wireless communication unit 4 upward from the state shown in FIG. 5(b) and inserting the wireless communication unit 4 into the socket 52, the wireless communication unit 4 is activated as shown in FIG. 5(c). It is attached to the connector 5. By attaching the wireless communication section 4 to the connector 5, the terminal section 46 of the wireless communication section 4 and the terminal section 53 of the connector 5 come into contact. Therefore, the wireless communication section 4 is electrically connected to the connector 5. Furthermore, the connector 5 is connected to a power supply circuit 311 via a conductive pattern. Therefore, the power supply circuit 311 supplies the internal power supply voltage to the wireless communication unit 4 via the conductive pattern and the connector 5.

As shown in FIG. 6, it is preferable that the antenna 423 protrudes from the light source board 70. Specifically, it is preferable that the antenna 423 protrudes downward from the light source board 70. That is, it is preferable that the antenna 423 protrudes from the light source board 70 toward the output surface 73a. Since the antenna 423 protrudes from the light source board 70, the radio waves reaching the antenna 423 are less likely to be interfered with, so that the communication sensitivity of the antenna 423 can be improved. Since the antenna 423 protrudes from the light source board 70, it becomes easier for the user to grasp the wireless communication unit 4 with his or her fingers, so that the wireless communication unit 4 can be easily attached to and removed from the connector 5.

As described above with reference to FIGS. 1 to 6, in the lighting fixture 100, the connector 5 is provided with the wireless communication section 4 (communication module) detachably attached thereto. Therefore, the wireless communication unit 4 can be easily attached to the lighting fixture 100. Moreover, the wireless communication unit 4 can be easily removed from the lighting fixture 100. As a result, the wireless communication section 4 can be easily replaced. For example, if the wireless communication section 4 breaks down and needs to be replaced, it can be easily replaced with another wireless communication section 4. Further, the communication module can be easily replaced with a communication module of another communication standard. For example, a communication module whose communication standard is ZIGBEE (registered trademark) can be replaced with a communication module whose communication standard is Bluetooth (registered trademark).

Further, the connector 5 is provided with the wireless communication section 4 (communication module) detachably attached from the output surface 73a side. Therefore, the wireless communication unit 4 can be easily replaced. For example, with the main body chassis 61 attached to the main body cover 1, the wireless communication section 4 can be easily replaced. Therefore, the wireless communication section 4 can be easily replaced by simply removing the light source cover 8 and the shade 9.

Further, similar to the through hole 75 of the light source board 70 and the through hole 321 of the power supply case 32, a through hole may be formed in the light source cover 8. The wireless communication unit 4 can pass through the through hole of the light source cover 8 . Therefore, the wireless communication section 4 can be attached with it protruding from the light source cover 8. As a result, the wireless communication section 4 can be replaced by simply removing the shade 9.

Furthermore, the connector 5 is arranged at a position overlapping the light source board 70. A through hole 75 is formed in the light source substrate 70 . The wireless communication unit 4 (communication module) can pass through the through hole 75 . Therefore, the wireless communication section 4 can be made to protrude from the through hole 75. As a result, when the lighting fixture 100 is installed on the ceiling surface C, the wireless communication section 4 is arranged to protrude downward, so that the communication sensitivity of the wireless communication section 4 can be improved.

Further, the antenna 423 protrudes from the light source board 70. Therefore, the communication sensitivity of the wireless communication section 4 can be improved.

Note that in the lighting fixture 100 described with reference to FIGS. 1 to 6, the connector 5 is provided with the wireless communication section 4 detachable from the output surface 73a side, but the present invention is not limited thereto. For example, the connector 5 may be provided with the wireless communication unit 4 detachable from a side different from the output surface 73a side.

Another example of the arrangement of the connector 5 will be described with reference to FIG. 7. FIG. 7 is a schematic cross-sectional view showing the vicinity of the connector 5.

As shown in FIG. 7, the connector 5 is provided with the wireless communication unit 4 detachable from a side different from the emission surface 73a side (lower side). Specifically, the connector 5 is provided with the wireless communication section 4 detachable from the side opposite to the output surface 73a (upper side). Therefore, the wireless communication unit 4 can be easily replaced. A through hole 11 is formed in the main body cover 1 . The wireless communication unit 4 can pass through the through hole 11 . Therefore, the wireless communication section 4 can be attached in a state that projects upward from the main body cover 1. In the configuration shown in FIG. 7, the wireless communication unit 4 is arranged in a position that is difficult to see from the bottom of the lighting fixture 100, so that the aesthetic appearance of the lighting fixture 100 is not easily spoiled.

Note that in the lighting fixture 100 described with reference to FIGS. 1 to 7, the connector 5 is provided at a position overlapping the light source board 70, but the present invention is not limited thereto. For example, the connector 5 may be provided at a position that does not overlap the light source board 70.

Another example of the arrangement of the connector 5 will be described with reference to FIGS. 8 and 9. FIG. 8 is an exploded perspective view showing the configuration of the main body part 6, the light source part 7, and the light source cover 8 according to this embodiment. FIG. 8 shows the main body part 6, the light source part 7, and the light source cover 8 as seen diagonally from below. FIG. 9 shows a schematic partial cross-sectional view of the main body 6, the light source 7, and the light source cover 8 shown in FIG. FIG. 9 shows the vicinity of the connector 5. FIG. 9 shows a cross section taken along line IX-IX in FIG. Note that in FIG. 9, illustrations of components unnecessary for explanation, such as the shade 9, are omitted.

As shown in FIGS. 8 and 9, in this embodiment, the connector 5 is arranged inside the main body chassis 61. Specifically, the connector 5 is arranged in the accommodation space 612. In this embodiment, the connector 5 is electrically connected to the power supply device 31 described with reference to FIG. 2 via a signal line and a power line.

A through hole 616 is formed in the main body chassis 61 . In this embodiment, the through hole 616 is arranged in the intermediate portion 614 of the main body chassis 61. The wireless communication unit 4 can pass through the through hole 616 . The through hole 616 is arranged at a position overlapping the light source substrate 70. Specifically, the through hole 616 is arranged so as to be located outside the light source substrate 70 in plan view. More specifically, the through hole 616 is arranged so as to face outward in the radial direction. The wireless communication unit 4 is arranged at a position out of the irradiation range of the light source 73. Specifically, the wireless communication unit 4 is arranged above the light source 73, whereas the irradiation direction of the light source 73 is downward. Therefore, it is possible to prevent the light emitted from the light source 73 from being blocked by the wireless communication unit 4. As a result, uneven light emission of the lighting fixture 100 can be suppressed.

Preferably, the antenna 423 protrudes from the main body chassis 61. Specifically, it is preferable that the antenna 423 protrudes outward from the main body chassis 61 in the radial direction DR. By protruding the antenna 423 from the main body chassis 61, the communication sensitivity of the antenna 423 can be improved.

Further, in this embodiment, a through hole 616 is formed in the main body chassis 61. Therefore, it is not necessary to form a through hole in the light source substrate 70. As a result, the degree of freedom in designing the wiring pattern of the light source board 70 can be improved.

The embodiments of the present invention have been described above with reference to the drawings (FIGS. 1 to 9). However, the present invention is not limited to the above-described embodiments, and can be implemented in various embodiments without departing from the spirit thereof (for example, (1) to (5) shown below). The drawings mainly show each component schematically to make it easier to understand, and the thickness, length, number, etc. of each component shown in the diagram may differ from the actual one due to the drawing process. . Further, the materials, shapes, dimensions, etc. of each component shown in the above embodiments are merely examples, and are not particularly limited, and various changes can be made without substantially departing from the effects of the present invention. be.

(1) In the embodiment of the present invention, the lighting fixture 100 was provided with one connector 5, but the present invention is not limited to this. For example, the lighting fixture 100 may include a plurality of connectors 5.

(2) In the present embodiment, the light source section 7 has a plurality of light sources 73, but the light source section 7 may have only one light source 73.

(3) In the present embodiment, the light source section 7 has two light source substrates 70, but the number of light source substrates 70 that the light source section 7 has may be one or three or more.

(4) In the embodiment of the present invention, the case where the present invention is applied to a ceiling light has been described, but the present invention is also applicable to, for example, a base light or a downlight.

(5) An example of a configuration in which the wireless communication unit 4 is detachably attached to the connector 5 will be described. For example, the insertion port 52 or the terminal portion 53 of the connector 5 is provided with an elastic member. When the terminal section 46 of the wireless communication section 4 is inserted into the connector 5, the terminal section 46 of the wireless communication section 4 is held between the connector 5 by the pressure of the elastic member provided on the connector 5. As a result, the state in which the terminal section 46 of the wireless communication section 4 is inserted into the connector 5 is maintained. On the other hand, the terminal section 46 of the wireless communication section 4 is pulled out from the connector 5 by applying an appropriate force to the wireless communication section 4 against the pressure of the elastic member and pulling it out.

4 Wireless communication section (communication module)
5 Connector 31 Power supply device 61 Main body chassis (power supply housing part)
70 Light source board 73 Light source 73a Output surface 75 Through hole 100 Lighting fixture 423 Antenna 616 Through hole

Claims (1)

a light source that emits light;
a power supply device that supplies power to the light source;
a connector connected to the power supply device;
a light source board on which the light source is arranged;
Equipped with a communication module,
The connector is provided with the communication module in a removable manner and is arranged at a position overlapping with the light source board,
The communication module has an antenna that receives radio waves,
A through hole through which the antenna can pass is formed in the light source board,
The lighting fixture, wherein the antenna protrudes from the light source board.

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