Power supply unit and lighting unit

Abstract

The objective of this disclosure is to improve the reliability of the electrical connection between the power supply block and the wireless communication device. [Solution] The power supply A1 comprises a power supply block 1, a wireless communication device 2, a housing 4 that houses the power supply block 1 and the wireless communication device 2, and a restricting member. The power supply block 1 has a plate-shaped power supply board 10 on which circuit components are mounted on its surface 100, and a connection part 3 provided on the power supply board 10 and electrically connected to the wireless communication device 2. The connection part 3 is configured to electrically connect the wireless communication device 2 so that it can be inserted and removed. The restricting member (second side plate 43) is provided on the housing 4 and restricts the movement of the wireless communication device 2, which is electrically connected to the connection part 3, in the direction of being removed from the connection part 3.

Description

Technical Field

[0001] The present disclosure relates to a power supply device and a lighting device, and more particularly, to a power supply device having a wireless communication function and a lighting device including the power supply device.

Background Art

[0002] As a conventional example, a lighting fixture (lighting device) described in Patent Document 1 is exemplified. The lighting fixture described in Patent Document 1 (hereinafter referred to as a conventional example) includes an LED module, a lighting circuit that controls lighting of the LED module, and a wireless communication unit that is connected to the lighting circuit and performs wireless communication with another lighting fixture or lighting control device.

[0003] The wireless communication unit has a wireless communication module substrate and a wireless communication unit case that houses the wireless communication module substrate. The wireless communication unit case is fixed to the sheet metal of the lighting fixture with screws.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, when the wireless communication module (wireless communication device) is directly connected to the lighting circuit (power supply block) without being housed in the wireless communication unit case, it is desired to improve the reliability of the electrical connection between the two.

[0006] An object of the present disclosure is to provide a power supply device and a lighting device capable of improving the reliability of the electrical connection between a power supply block and a wireless communication device.

Means for Solving the Problems

[0007] A power supply device according to one aspect of the present disclosure comprises a power supply block that supplies power to a load, a wireless communication device that performs wireless communication, a housing that houses the power supply block and the wireless communication device, and a restricting member. The power supply block has a plate-shaped power supply board on which circuit components are mounted on its surface, and a connection portion provided on the power supply board that is electrically connected to the wireless communication device. The connection portion is configured to electrically connect the wireless communication device so that it can be inserted into and removed. The restricting member is provided in the housing and restricts the movement of the wireless communication device, which is electrically connected to the connection portion, in a direction that will cause it to withdraw from the connection portion.

[0008] A power supply device according to one aspect of the present disclosure comprises a power supply block that supplies power to a load, a wireless communication device that performs wireless communication, and a restricting member. The power supply block has a plate-shaped power supply board on which circuit components are mounted on its surface, and a connection portion provided on the power supply board and electrically connected to the wireless communication device. The connection portion is configured to electrically connect the wireless communication device so that it can be inserted and removed. The restricting member is provided on the power supply board and restricts the movement of the wireless communication device, which is electrically connected to the connection portion, in a direction that will cause it to withdraw from the connection portion.

[0009] A power supply device according to one aspect of the present disclosure comprises a power supply block that supplies power to a load, a wireless communication device that performs wireless communication, and a housing that houses the power supply block and the wireless communication device. The power supply block has a plate-shaped power supply board on which circuit components are mounted on its surface, and a connection portion provided on the power supply board that is electrically connected to the wireless communication device. The connection portion is configured to electrically connect the wireless communication device so that it can be inserted into and removed. The housing has a wall facing the wireless communication device in the direction from which the wireless communication device exits the connection portion. The wireless communication device is fixed to the wall.

[0010] A lighting device according to one aspect of the present disclosure comprises a power supply device and one or more light sources that are lit by the power supplied from the power supply device. [Effects of the Invention]

[0011] The power supply and lighting devices disclosed herein have the effect of improving the reliability of the electrical connection between the power supply block and the wireless communication device. [Brief explanation of the drawing]

[0012] [Figure 1] Figure 1 is an exploded perspective view of a power supply device according to Embodiment 1 of this disclosure. [Figure 2] Figure 2 is an exploded perspective view of the wireless communication device and connection section in the same power supply unit. [Figure 3] Figure 3 is a circuit block diagram of the power supply block in the same power supply unit. [Figure 4] Figure 4 is a cross-sectional view of the main part of the power supply unit shown above. [Figure 5] Figure 5 is a cross-sectional view of the main part of a modified example 1 of the power supply device according to Embodiment 1. [Figure 6] Figure 6 is a cross-sectional view of the main part of a modified example 2 of the power supply device according to Embodiment 1. [Figure 7] Figure 7 is a cross-sectional view of the main part of a modified example 3 of the power supply device according to Embodiment 1. [Figure 8] Figure 8 is a perspective view showing a power supply device according to Embodiment 2 of this disclosure, with some parts omitted. [Figure 9] Figure 9 is an exploded perspective view of the power supply unit shown above, with some parts omitted. [Figure 10] Figure 10 is a perspective view showing a modified example 1 of the power supply device according to Embodiment 2, with some parts omitted. [Figure 11] Figure 11 is a perspective view showing a modified example 2 of the power supply device according to Embodiment 2, with some parts omitted. [Figure 12] Figure 12 is a perspective view showing a modified example 2 of the power supply device according to Embodiment 2, with some parts omitted. [Figure 13] Figure 13 is a side view of the regulating member in a modified example 2 of the power supply device according to Embodiment 2. [Figure 14] Figure 14 is a side view of the regulating member in a bent state in a modified example 2 of the power supply device according to Embodiment 2. [Figure 15] FIG. 15 is a cross-sectional perspective view of a power supply device according to Embodiment 3 of the present disclosure. [Figure 16] FIG. 16 is a cross-sectional view of a main part of the power supply device described above. [Figure 17] FIG. 17 is a perspective view of a lighting device according to an embodiment of the present disclosure. [Figure 18] FIG. 18 is an exploded perspective view of the lighting device described above as viewed obliquely downward. [Figure 19] FIG. 19 is an exploded perspective view of the lighting device described above as viewed obliquely upward. [Figure 20] FIG. 20 is a perspective view of Modification 1 of the lighting device described above. [Figure 21] FIG. 21 is an exploded perspective view of Modification 1 of the lighting device described above. [Figure 22] FIG. 22 is a perspective view of Modification 2 of the lighting device described above.

MODE FOR CARRYING OUT THE INVENTION

[0013] Hereinafter, a power supply device and a lighting device according to an embodiment of the present disclosure will be described in detail with reference to the drawings. However, each of the drawings described in the following embodiments is a schematic diagram, and the respective ratios of the sizes and thicknesses of each component do not necessarily reflect the actual dimensional ratios. Note that the configurations described in the following embodiments are merely examples of the present disclosure. The present disclosure is not limited to the following embodiments, and various modifications can be made according to the design and the like as long as the effects of the present disclosure can be achieved.

[0014] (1) Overview (1-1) Overview of the power supply device according to Embodiment 1 The power supply device A1 according to Embodiment 1 includes a power supply block 1 that supplies power to a load, a wireless communication device 2 that performs wireless communication, a housing 4 that houses the power supply block 1 and the wireless communication device 2, and a regulating member (see FIG. 1). Note that the load to which power is supplied from the power supply block 1 is preferably a light-emitting element (light source) such as a light-emitting diode (LED), an organic electroluminescence element, or a laser diode.

[0015] The wireless communication device 2 controls the power supply block 1 to adjust the power according to commands obtained via wireless communication. Preferably, the wireless communication device 2 receives wireless signals transmitted from communication devices such as remote controllers and smartphones, and controls the power supply block 1 according to the commands contained in the wireless signals. The communication medium for wireless communication is preferably electromagnetic waves such as radio waves, infrared rays, and visible light, with radio waves being particularly desirable.

[0016] The power supply block 1 includes a plate-shaped power supply board 10 on which circuit components are mounted on its surface 100, and a connection part 3 provided on the power supply board 10 that is electrically connected to the wireless communication device 2 (see Figure 4).

[0017] The power supply board 10 is, for example, made up of a rectangular printed circuit board. The circuit components (not shown) include two types of components: through-hole components and surface-mount components. Through-hole components are mounted on the component side (surface 100) of the power supply board 10. Surface-mount components are mainly mounted on the solder side (backside) of the power supply board 10. However, some surface-mount components may also be mounted on the component side (surface 100).

[0018] The connection part 3 is configured to electrically connect to the wireless communication device 2 in a removable manner. Preferably, the connection part 3 has, for example, a receptacle connector (female connector). If the connection part 3 has a receptacle connector, it is preferable that the wireless communication device 2 has a plug connector (male connector) that can be electrically and mechanically connected to the receptacle connector. However, it is also acceptable for the connection part 3 to have a plug connector and the wireless communication device 2 to have a receptacle connector.

[0019] The housing 4 is formed in the shape of a long box with one side open by bending a metal plate (see Figure 1). The housing 4 has a bottom plate 41 facing the open side (the bottom surface in Figure 1; hereinafter referred to as the open surface), a pair of first side plates 42 protruding from both ends of the bottom plate 41 in the short direction, and a pair of second side plates 43 protruding from both ends of the bottom plate 41 in the longitudinal direction.

[0020] The restricting member is provided on the housing 4. For example, the restricting member includes one of a pair of second side plates 43, the second side plate 43 facing the wireless communication device 2 which is electrically connected to the connection part 3. In other words, after the connection part 3 and the wireless communication device 2 are electrically connected, when the power supply block 1 is housed in the housing 4, the second side plate 43, which is the restricting member, restricts the wireless communication device 2, which is electrically connected to the connection part 3, from moving in the direction that would cause it to detach from the connection part 3 (first direction D1) (see Figure 4).

[0021] However, in the power supply device A1 according to Embodiment 1, the movement of the wireless communication device 2 is restricted by the restricting member (second side plate 43), making it difficult for the electrical connection between the power supply block 1 and the wireless communication device 2 via the connection part 3 to be released. As a result, the power supply device A1 according to Embodiment 1 can improve the reliability of the electrical connection between the power supply block 1 and the wireless communication device 2.

[0022] (1-2) Overview of the power supply device according to Embodiment 2 The power supply device A2 according to Embodiment 2 comprises a power supply block 1 that supplies power to a load, a wireless communication device 2 that performs wireless communication, and a regulating member 16 (see Figures 8 and 9).

[0023] The power supply block 1 includes a plate-shaped power supply board 10 on which circuit components are mounted on its surface 100, and a connection part 3 provided on the power supply board 10 that is electrically connected to the wireless communication device 2.

[0024] The connection section 3 is configured to electrically connect the wireless communication device 2 so that it can be inserted and removed.

[0025] The restricting member 16 is provided on the power supply board 10. The restricting member 16 restricts the movement of the wireless communication device 2, which is electrically connected to the connection part 3, in the direction that would cause it to detach from the connection part 3 (first direction D1) (see Figure 8). For example, the restricting member 16 may be made of a rectangular parallelepiped-shaped resin molded body. The restricting member 16 is separated from the power supply board 10 until the wireless communication device 2 is electrically connected to the connection part 3 (see Figure 9). After the wireless communication device 2 is electrically connected to the connection part 3, the restricting member 16 is fixed to the vicinity of the wireless communication device 2 on the surface 100 of the power supply board 10 by an appropriate method such as adhesive (see Figure 8).

[0026] However, in the power supply device A2 according to Embodiment 2, the movement of the wireless communication device 2 is restricted by the restricting member 16, making it difficult for the electrical connection between the power supply block 1 and the wireless communication device 2 via the connection part 3 to be released. As a result, the power supply device A2 according to Embodiment 2 can improve the reliability of the electrical connection between the power supply block 1 and the wireless communication device 2.

[0027] (1-3) Overview of the power supply device according to Embodiment 3 The power supply device A3 according to Embodiment 3 comprises a power supply block 1 that supplies power to a load, a wireless communication device 2 that performs wireless communication, and a housing 4 that houses the power supply block 1 and the wireless communication device 2 (see Figures 15 and 16).

[0028] The power supply block 1 includes a plate-shaped power supply board 10 on which circuit components are mounted on its surface 100, and a connection part 3 provided on the power supply board 10 that is electrically connected to the wireless communication device 2.

[0029] The connection section 3 is configured to electrically connect the wireless communication device 2 so that it can be inserted and removed. The wireless communication device 2 is inserted into the connection section 3 along a direction perpendicular to the surface 100 of the power supply board 10 (second direction D2).

[0030] The housing 4 has a wall (bottom plate 41) facing the wireless communication device 2 in the direction in which the wireless communication device 2 exits the connection part 3 (opposite direction to the second direction D2). For example, the housing 4 is formed in the shape of a long box with one side open by bending a metal plate (see Figure 15). The housing 4 has a bottom plate 41 facing the open side (the bottom surface in Figure 15; hereinafter referred to as the open surface), a pair of first side plates 42 protruding from both ends of the bottom plate 41 in the short direction, and a pair of second side plates 43 protruding from both ends of the bottom plate 41 in the longitudinal direction.

[0031] In this embodiment 3, the wireless communication device 2 is fixed to the bottom plate 41 of the housing 4 (see Figure 16). In other words, the wireless communication device 2 is electrically connected to the connection part 3 during the process of housing the power supply block 1 in the housing 4 through the opening. When the power supply block 1 is housed in the housing 4, the bottom plate 41 of the housing 4 restricts the wireless communication device 2 from moving in the direction away from the connection part 3 (the opposite direction to the second direction D2).

[0032] However, in the power supply A3 according to Embodiment 3, the movement of the wireless communication device 2 is restricted by the wall (bottom plate 41) of the housing 4, making it less likely for the electrical connection between the power supply block 1 and the wireless communication device 2 via the connection part 3 to be released. As a result, the power supply A3 according to Embodiment 3 can improve the reliability of the electrical connection between the power supply block 1 and the wireless communication device 2.

[0033] (1-4) Overview of the lighting device according to the embodiment The lighting device B1 according to this embodiment includes, for example, a power supply device A1 according to Embodiment 1 and one or more light sources (LED modules 50) that are lit by the power supplied from the power supply device A1 according to Embodiment 1 (see Figure 17).

[0034] Since the lighting device B1 according to this embodiment is equipped with the power supply device A1 according to Embodiment 1, the reliability of the electrical connection between the power supply block 1 and the wireless communication device 2 can be improved.

[0035] However, the lighting device B1 according to this embodiment may also include the power supply device A2 according to Embodiment 2 or the power supply device A3 according to Embodiment 3.

[0036] (2) Details (2-1) Details of the power supply device according to Embodiment 1 The power supply device A1 according to Embodiment 1 (hereinafter referred to as power supply device A1) comprises a power supply block 1, a wireless communication device 2, a housing 4, and a regulating member (see Figure 1).

[0037] (2-1-1) Circuit configuration of the power supply unit Figure 3 shows the circuit configuration of power supply unit A1. Power supply unit A1 comprises a power supply block 1 and a wireless communication device 2.

[0038] The power supply block 1 includes a power connector 12, a power conversion circuit 13, a constant current circuit 14, a control circuit 15, a connection part 3, and the like.

[0039] The power conversion circuit 13 includes, for example, a rectifier circuit such as a diode bridge, a boost chopper circuit (power factor correction circuit), and the like. The power conversion circuit 13 converts AC power supplied from an external power supply P1 through a power connector 12 into DC power. The external power supply P1 is, for example, a commercial power grid that supplies AC voltage and AC current with an effective value of 100V or 200V. However, the power conversion circuit 13 may include a switching power supply circuit with a power factor correction function, such as a buck chopper circuit, a buck-boost chopper circuit, or a flyback converter, instead of a boost chopper circuit.

[0040] The constant current circuit 14 includes, for example, a buck converter. The constant current circuit 14 steps down the DC voltage output from the power conversion circuit 13 and applies it to the LED module 50, and also adjusts the DC current flowing through the LED module 50. However, the constant current circuit 14 may be equipped with various chopper circuits, series regulators, etc., instead of a buck converter.

[0041] The control circuit 15 includes, for example, a microcontroller. The control circuit 15 controls the power conversion circuit 13 to maintain its output voltage at a constant DC voltage. Furthermore, the control circuit 15 controls the step-down chopper circuit of the constant current circuit 14 to match the DC current supplied from the constant current circuit 14 to the LED module 50 to a target value. The control circuit 15 is electrically connected to the wireless communication device 2 via the connection part 3. As will be described later, the control circuit 15 changes the target value of the DC current supplied to the LED module 50 in response to a control signal received from the wireless communication device 2.

[0042] The wireless communication device 2 includes a wireless communication circuit 23, an antenna 24, etc. (see Figure 2). The wireless communication circuit 23 is an integrated circuit configured to perform wireless communication compliant with a wireless communication standard, such as BLE (Bluetooth® low energy). However, the wireless communication circuit 23 only needs to be configured to perform wireless communication compliant with any one standard, such as BLE, Wi-Fi®, ZigBee®, and 920MHz band low-power radio stations (for telecontrol). The wireless communication circuit 23 can send and receive wireless signals through the external antenna 24. The wireless communication device 2 operates by receiving a control power supply voltage from the power supply block 1 through the connection part 3.

[0043] The connection section 3 has, for example, four contacts 31 (see Figure 2). The four contacts 31 include a ground contact, a control power supply voltage contact, and two control signal contacts.

[0044] However, the wireless communication circuit 23 of the wireless communication device 2 acquires a control signal from the wireless signal received via the antenna 24 and outputs the acquired control signal to the control circuit 15 of the power supply block 1 via the connection unit 3. The control circuit 15 dims the LED module 50 by changing the target value of the DC current supplied to the LED module 50 according to the control signal received from the wireless communication circuit 23. If the LED module 50 includes multiple types of LEDs with different light colors, for example, two types of LEDs such as incandescent LEDs and daylight LEDs, the control circuit 15 can also adjust the color of the LED module 50 by individually adjusting the target value of the DC current supplied to the incandescent LEDs and the target value of the DC current supplied to the daylight LEDs.

[0045] (2-1-2) Structure of the power supply unit The power supply block 1 has a board-shaped power supply board 10 on which multiple circuit components (not shown) are mounted on its surface 100 (see Figures 1 and 4). The power supply board 10 is, for example, made of a rectangular printed circuit board. The multiple circuit components include two types of circuit components: through-hole components and surface-mount components. Through-hole components are mounted on the surface 100, which is the component side of the power supply board 10. Surface-mount components are mainly mounted on the back side, which is the solder side of the power supply board 10. However, some surface-mount components may also be mounted on the component side (surface 100). The power conversion circuit 13, constant current circuit 14, and control circuit 15 of the power supply block 1 are made of printed circuits consisting of the power supply board 10 and multiple circuit components.

[0046] The wireless communication device 2 has a plate-shaped wireless communication substrate 20 (see Figure 2). A wireless communication circuit 23 is mounted on the surface 200 of the wireless communication substrate 20. An antenna 24 is also provided on the surface 200 of the wireless communication substrate 20. The antenna 24 is made of a conductor (copper foil) formed on the surface 200 of the wireless communication substrate 20.

[0047] A projection 21 is provided at one end (the left end in Figure 2) of the wireless communication board 20 in the longitudinal direction (first direction D1) (see Figure 2). The projection 21 is rectangular in shape, shorter than the width dimension in the short direction (second direction D2) of the wireless communication board 20, and is integrally formed with the wireless communication board 20. Four conductors 22 are provided on the surface 210 of the projection 21 (see Figure 2). Each of the four conductors 22 is formed in a rectangular shape with the first direction D1 as its longitudinal direction. The four conductors 22 are also arranged parallel to each other with a gap in between along the second direction D2. These four conductors 22 are electrically connected to the wireless communication circuit 23. For example, the two conductors 22 at both ends in the second direction D2 are configured to make one-to-one contact and conduct electricity with the ground contact 31 and the control power supply voltage contact 31 of the connection part 3. The remaining two conductors 22 are configured to make one-to-one contact and conduct electricity with the two control signal contacts 31 of the connection part 3.

[0048] The connection part 3 has a box body 30 having an opening 300 into which the protruding piece 21 is inserted, four contacts 31 provided inside the box body 30, four terminals 32 electrically connected one-to-one with each contact 31, and four leg pieces 33 (see Figure 2). In this embodiment, the connection part 3 is made up of a general-purpose receptacle connector (Type A) compliant with the USB (Universal Serial Bus) standard, but it is not intended to limit the design to this.

[0049] The box body 30 is formed into a bottomed rectangular tube shape by processing a metal plate. The four leg pieces 33 protrude from the side of the box body 30 along the second direction D2. However, the four leg pieces 33 are integrally formed with the box body 30 by the metal plate.

[0050] The four contacts 31 are supported by a rectangular support (not shown) made of an electrically insulating material (e.g., synthetic resin) and housed inside the box 30. The tips of the four contacts 31 are bent into a V-shape. The four terminals 32 protrude from the side of the box 30 along the second direction D2. The four terminals 32 are also arranged in a row with spacing between them along the first direction D1.

[0051] The connector 3 is mounted on the surface 100 of the power supply board 10, located near one end (the right end in Figure 1) from the center in the longitudinal direction of the power supply board 10, and at one end (the rear side in Figure 1) in the short direction of the power supply board 10. However, the connector 3 is mounted on the power supply board 10 such that the opening 300 of the casing 30 faces one end (the right end in Figure 1) in the longitudinal direction (first direction D1) of the power supply board 10. The four terminals 32 of the connector 3 are inserted one by one into four through-holes provided on the power supply board 10 and soldered to the printed circuit board on the back side (solder side) of the power supply board 10.

[0052] The wireless communication device 2 is mechanically and electrically connected to the connection part 3 by inserting the projection 21 into the opening 300 of the box body 30 in the opposite direction to the first direction D1 (see Figures 1 and 2). The projection 21 inserted into the box body 30 from the opening 300 is positioned in the space between the inner surface of the box body 30 and the support. The four conductors 22 provided on the surface 210 of the projection 21 then make one-to-one contact and conduction with the four contacts 31 supported by the support. At this time, the V-shaped bent tip deforms, generating contact pressure on each contact 31 against the conductor 22, ensuring reliable contact and conduction between each contact 31 and each conductor 22.

[0053] The housing 4 is formed in the shape of a long box with one side open by bending a metal plate (see Figure 1). The housing 4 has a bottom plate 41 facing the opening, a pair of first side plates 42 protruding from both ends of the bottom plate 41 in the short direction, and a pair of second side plates 43 protruding from both ends of the bottom plate 41 in the longitudinal direction.

[0054] Here, with the wireless communication device 2 and the power supply block 1 electrically connected to the connection part 3 housed in the housing 4, the wireless communication device 2 and the second side plate 43 are separated by a distance W1 along the first direction D1 (see Figure 4). On the other hand, the distance W2 from the entrance of the opening 300 of the box body 30 to the tip of the projection 21 of the wireless communication device 2 is sufficiently greater than the distance W1.

[0055] In other words, the restricting member in Embodiment 1 includes one of the pair of second side plates 43 that faces the wireless communication device 2 which is electrically connected to the connection part 3. After the connection part 3 and the wireless communication device 2 are electrically connected, when the power supply block 1 is housed in the housing 4, the second side plate 43 restricts the wireless communication device 2, which is electrically connected to the connection part 3, from moving in the direction that would cause it to detach from the connection part 3 (first direction D1) (see Figure 4).

[0056] However, in the power supply A1 according to Embodiment 1, the movement of the wireless communication device 2 is restricted by the restricting member (second side plate 43), making it difficult for the electrical connection between the power supply block 1 and the wireless communication device 2 via the connection part 3 to be released. As a result, the power supply A1 according to Embodiment 1 can improve the reliability of the electrical connection between the power supply block 1 and the wireless communication device 2. Furthermore, the power supply A1 according to Embodiment 1 has the advantage of simplifying the configuration compared to the case where the restricting member is provided separately from the housing 4, by utilizing the wall (second side plate 43) of the housing 4 as the restricting member.

[0057] (2-1-3) Modified example of the power supply device according to Embodiment 1 Next, several modifications of the power supply A1 according to Embodiment 1 will be described with reference to the drawings. However, the basic configuration of each of the modifications of power supply A1 described below is the same as the basic configuration of power supply A1 according to Embodiment 1. Therefore, components that are common to or substantially common with the basic configuration of power supply A1 according to Embodiment 1 will be denoted by the same reference numerals, and their illustration and description will be omitted as appropriate. In the following description, "substantially common components" means components that differ slightly in shape, size, etc., but have the same function.

[0058] (2-1-3-1) Variation 1 The power supply unit A1 of Modified Example 1 is characterized by the configuration of its restricting member. The restricting member in Modified Example 1 includes a projection 45 that protrudes from the housing 4 into the space in which the power supply block 1 and the wireless communication device 2 are housed (see Figure 5).

[0059] The projection 45 is provided on the bottom plate 41. The projection 45 is formed integrally with the housing 4 by cutting and raising a portion of the bottom plate 41 (see Figure 5). The tip of the projection 45 faces the end of the wireless communication device 2 (wireless communication board 20) along the first direction D1. However, the tip of the projection 45 may be in contact with the end of the wireless communication board 20, or there may be a gap between them (see Figure 5).

[0060] In other words, the restricting member in Modification 1 includes a protrusion 45 provided on the bottom plate 41 of the housing 4. After the connection part 3 and the wireless communication device 2 are electrically connected, when the power block 1 is housed in the housing 4, the protrusion 45 provided on the bottom plate 41 restricts the wireless communication device 2, which is electrically connected to the connection part 3, from moving in the direction that would cause it to detach from the connection part 3 (first direction D1) (see Figure 5).

[0061] However, in the power supply unit A1 according to Modification 1, the movement of the wireless communication device 2 is restricted by the restricting member (protrusion 45), making it difficult for the electrical connection between the power supply block 1 and the wireless communication device 2 via the connection part 3 to be released. As a result, the power supply unit A1 according to Modification 1 can improve the reliability of the electrical connection between the power supply block 1 and the wireless communication device 2. Furthermore, the power supply unit A1 according to Modification 1 has the advantage of simplifying the configuration compared to the case where the restricting member is provided separately from the housing 4, by cutting and raising the bottom plate 41 of the housing 4.

[0062] (2-1-3-2) Modification example 2 The power supply unit A1 of the modified example 2 is characterized by the configuration of the restricting member. The restricting member in modified example 2 includes a slit 46 provided in the bottom plate 41 of the housing 4 (see Figure 6).

[0063] The slit 46 is provided in the bottom plate 41 of the housing 4. The slit 46 has a rectangular shape in plan view and penetrates the bottom plate 41 in the thickness direction. The width of the slit 46 is greater than the thickness of the wireless communication board 20. The length of the slit 46 is longer than the longitudinal length of the wireless communication board 20 excluding the projection 21. However, the length of the slit 46 is shorter than the sum of the longitudinal length of the wireless communication board 20 excluding the projection 21 and the distance W2 (see Figure 4) from the entrance of the opening 300 of the housing 30 to the tip of the projection 21 of the wireless communication device 2.

[0064] In the power supply unit A1 of the modified example 2, a part of the wireless communication device 2, which is housed in the housing 4 together with the power supply block 1, specifically the end of the wireless communication board 20 along its longitudinal direction (the upper end in Figure 6), is inserted through the slit 46 (see Figure 6). In other words, in the modified example 2, the wireless communication device 2, which is electrically connected to the connection part 3, is restricted from moving in the direction that would cause it to detach from the connection part 3 (first direction D1) by having a part of the wireless communication board 20 inserted through the slit 46 (see Figure 6).

[0065] However, in the modified version 2, the power supply A1 restricts the movement of the wireless communication device 2 with a restricting member (slit 46), making it difficult for the electrical connection between the power supply block 1 and the wireless communication device 2 via the connection part 3 to be released. As a result, the power supply A1 in the modified version 2 can improve the reliability of the electrical connection between the power supply block 1 and the wireless communication device 2. Furthermore, the power supply A1 in the modified version 2 has the advantage of simplifying the configuration compared to the case where the restricting member is provided separately from the housing 4, by forming the slit 46 in the bottom plate 41 of the housing 4.

[0066] (2-1-3-3) Modification 3 The power supply unit A1 of Modification 3 is characterized by the configuration of its restricting member. In Modification 3, the restricting member 47 is attached to the housing 4 and protrudes from the housing 4 into the space where the power supply block 1 and the wireless communication device 2 are housed (see Figure 7).

[0067] The restricting member 47 is formed in a strip shape from a flexible material and is configured to be tied into a ring of any size. For example, a cable tie band made of synthetic resin is suitable for the restricting member 47. However, the restricting member 47 may be made of a material other than a cable tie band made of synthetic resin.

[0068] The restricting member 47 is attached to the bottom plate 41 of the housing 4 by being inserted through a pair of through holes 410 provided in the bottom plate 41 of the housing 4 and then fastened together (see Figure 7). A portion of the restricting member 47 attached to the bottom plate 41 protrudes from the bottom plate 41 into the internal space of the housing 4. At this time, the portion of the restricting member 47 protruding into the internal space of the housing 4 faces the wireless communication device 2 in the direction of exiting the connection part 3 (first direction D1). In other words, in the modified example 3, the power supply A1 restricts the movement of the wireless communication device 2, which is electrically connected to the connection part 3, in the direction of exiting the connection part 3 (first direction D1) by the restricting member 47 protruding from the bottom plate 41 into the internal space of the housing 4 (see Figure 7).

[0069] However, in the power supply A1 according to Modification 3, the movement of the wireless communication device 2 is restricted by the restricting member 47, making it difficult for the electrical connection between the power supply block 1 and the wireless communication device 2 via the connection part 3 to be released. As a result, the power supply A1 according to Modification 3 can improve the reliability of the electrical connection between the power supply block 1 and the wireless communication device 2. Furthermore, the power supply A1 according to Modification 3 has the advantage that the restricting member 47 can be easily attached to the housing 4 by attaching the restricting member 47 to a pair of through holes 410 provided in the bottom plate 41 of the housing 4.

[0070] (2-2) Details of the power supply device according to Embodiment 2 The power supply unit A2 according to Embodiment 2 comprises a power supply block 1, a wireless communication device 2, a housing 4, and a regulating member (see Figures 8 and 9). However, the basic configuration of the power supply unit A2 according to Embodiment 2 (hereinafter abbreviated as power supply unit A2) is the same as the basic configuration of the power supply unit A1 according to Embodiment 1. Therefore, components that are common to the basic configuration of the power supply unit A1 according to Embodiment 1 and components that are substantially common are denoted by the same reference numerals, and their illustrations and descriptions are omitted as appropriate. In the following description, "substantially common components" means components that differ slightly in shape, size, etc., but have the same function.

[0071] In Embodiment 2, the restricting member 16 is provided on the power supply board 10. The restricting member 16 restricts the wireless communication device 2, which is electrically connected to the connection part 3, from moving in the direction that would cause it to detach from the connection part 3 (first direction D1) (see Figure 8). The restricting member 16 is made of a rectangular parallelepiped-shaped resin molded body. The restricting member 16 is separated from the power supply board 10 until the wireless communication device 2 is electrically connected to the connection part 3 (see Figure 9). After the wireless communication device 2 is electrically connected to the connection part 3, the restricting member 16 is fixed to the vicinity of the wireless communication device 2 on the surface 100 of the power supply board 10 by an appropriate method such as adhesive (see Figure 8).

[0072] However, since the power supply unit A2 restricts the movement of the wireless communication device 2 with the restricting member 16, the electrical connection between the power supply block 1 and the wireless communication device 2 via the connection part 3 is less likely to be released. As a result, the power supply unit A2 can improve the reliability of the electrical connection between the power supply block 1 and the wireless communication device 2. The restricting member 16 may be made up of screws or rivets, etc.

[0073] (2-2-1) Modified example of the power supply device according to Embodiment 2 Next, several modifications of the power supply A2 according to Embodiment 2 will be described with reference to the drawings. However, the basic configuration of each of the modifications of power supply A2 described below is the same as the basic configuration of power supply A2 according to Embodiment 2. Therefore, components that are common to or substantially common with the basic configuration of power supply A2 according to Embodiment 2 will be denoted by the same reference numerals, and their illustration and description will be omitted as appropriate. In the following description, "substantially common components" means components that differ slightly in shape, size, etc., but have the same function.

[0074] (2-2-1-1) Variation 1 The power supply unit A2 of Modified Example 1 is characterized by the configuration of its restricting member. In Modified Example 1, the restricting member 17 is formed in a strip shape from a flexible material and is configured to be tied into a ring of any size (see Figure 10). For example, a cable tie band made of synthetic resin is suitable for the restricting member 17. However, the restricting member 17 may be made of a material other than a cable tie band made of synthetic resin.

[0075] The restricting member 17 is inserted through a pair of through holes 103 provided in the power supply board 10 and through holes 202 provided in the wireless communication board 20, and then fastened (see Figure 10). In other words, in the modified example 1, the power supply device A2 restricts the wireless communication device 2, which is electrically connected to the connection part 3, from moving in the direction that would cause it to detach from the connection part 3 (first direction D1) by connecting the wireless communication board 20 and the power supply board 10 with the restricting member 17 (see Figure 10).

[0076] However, in the power supply unit A2 according to Modification 1, the movement of the wireless communication device 2 is restricted by the restricting member 17, making it difficult for the electrical connection between the power supply block 1 and the wireless communication device 2 via the connection part 3 to be released. As a result, the power supply unit A2 according to Modification 1 can improve the reliability of the electrical connection between the power supply block 1 and the wireless communication device 2. Furthermore, in the power supply unit A2 according to Modification 1, the movement of the wireless communication device 2 can be restricted more reliably because the wireless communication board 20 and the power supply board 10 are connected by the restricting member 17.

[0077] (2-2-1-2) Variation 2 The power supply unit A2 of the modified example 2 is characterized by the configuration of the restricting member. In modified example 2, the restricting member 18 is provided on the power supply board 10 so as to be displaceable between a restricting position (see Figure 11) that restricts the movement of the wireless communication device 2 in the direction of withdrawal (first direction D1) and an unrestricted position (see Figure 12) that does not restrict the movement of the wireless communication device 2 in the direction of withdrawal.

[0078] The restricting member 18 has a first plate portion 181, a second plate portion 182, a pair of hinge portions 183, and a pair of fixing portions 184 (see Figure 13). The first plate portion 181 and the second plate portion 182 are each formed in the shape of a rectangular flat plate (see Figure 11). The second plate portion 182 protrudes from one end of the first plate portion 181 in the thickness direction of the first plate portion 181. The pair of fixing portions 184 are each formed in the shape of a rectangular prism. The pair of hinge portions 183 are each formed in the shape of a semi-cylindrical shape. One end of each hinge portion 183 is connected to the second plate portion 182, and the other end of each hinge portion 183 is connected to one end of the pair of fixing portions 184. The restricting member 18 is constructed by integrally forming the first plate portion 181, the second plate portion 182, the pair of hinge portions 183, and the pair of fixing portions 184 as a molded body made of synthetic resin. However, the restricting member 18 may be constructed by integrally forming the first plate portion 181, the second plate portion 182, the pair of hinge portions 183, and the pair of fixing portions 184 from a material other than synthetic resin, for example, a metal plate.

[0079] Here, the pair of semi-cylindrical hinge portions 183 are deformable in their radial direction. Therefore, the regulating member 18 can rotate the first plate portion 181 and the second plate portion 182 relative to the pair of fixing portions 184, using the pair of hinge portions 183 as pivot points (see Figure 14).

[0080] The restricting member 18 is supported by the power supply board 10 by inserting a pair of fixing parts 184 one by one into a pair of through holes (not shown) provided in the power supply board 10, and fixing the pair of fixing parts 184 to the power supply board 10 by an appropriate method such as adhesive or crimping (see Figures 11 and 12).

[0081] The restricting member 18 can be displaced from a restricted position to an unrestricted position by, for example, rotating the first plate portion 181 and the second plate portion 182 by hand (see Figures 11 and 12). Furthermore, when the force applied by the hand of the restricting member 18 is removed, the restoring force of the pair of hinge portions 183 rotates the first plate portion 181 and the second plate portion 182, returning the restricting member 18 to the restricted position from the unrestricted position.

[0082] Here, the restricting member 18 can restrict the movement of the wireless communication device 2 in the direction of exiting the connection part 3 (first direction D1) by positioning the tip of the first plate portion 181 opposite the wireless communication substrate 20 when it is in the restricting position (see Figure 11). On the other hand, when the restricting member 18 is in the non-restricting position, it cannot restrict the movement of the wireless communication device 2 by not positioning the tip of the first plate portion 181 opposite the wireless communication substrate 20 (see Figure 12).

[0083] Therefore, in the modified power supply A2, after electrically connecting the wireless communication device 2 to the connection part 3 with the restricting member 18 displaced to the unrestricted position, the restricting member 18 is returned to the restricted position, making it less likely for the electrical connection between the power supply block 1 and the wireless communication device 2 via the connection part 3 to be released. As a result, the power supply A2 according to the modified power supply A2 can improve the reliability of the electrical connection between the power supply block 1 and the wireless communication device 2. Furthermore, since the power supply A2 according to the modified power supply A2 restricts the movement of the wireless communication device 2 by displacing the restricting member 18 from the unrestricted position to the restricted position after electrically connecting the wireless communication device 2 to the connection part 3, the connection work between the wireless communication device 2 and the connection part 3 can be simplified.

[0084] (2-3) Details of the power supply device according to Embodiment 3 The power supply unit A3 according to Embodiment 3 comprises a power supply block 1, a wireless communication device 2, and a housing 4 (see Figure 15). However, the basic configuration of the power supply unit A3 according to Embodiment 3 (hereinafter abbreviated as power supply unit A3) is the same as the basic configuration of the power supply unit A1 according to Embodiment 1. Therefore, components that are common to the basic configuration of the power supply unit A1 according to Embodiment 1 and components that are substantially common are denoted by the same reference numerals, and their illustrations and descriptions are omitted as appropriate. In the following description, "substantially common components" means components that differ slightly in shape, size, etc., but have the same function.

[0085] In Embodiment 3, the connection section 3 has rectangular openings 301 and 302 on each of two adjacent sides of the box body 30 (see Figure 15). These two openings 301 and 302 are connected at one end in the longitudinal direction of each. In Embodiment 3, the connection section 3 has four contacts 31 housed inside the box body 30, arranged at intervals along the surface 100 of the power supply board 10.

[0086] In Embodiment 3, the wireless communication device 2 has four conductors 22 that make one-to-one contact and conduction with the four contacts 31 of the connection part 3, formed on the surface of the projection 21 so as to be spaced apart along the longitudinal direction (first direction D1) of the wireless communication substrate 20 (see Figure 15).

[0087] Here, the wireless communication device 2 is fixed to the bottom plate 41 of the housing 4. More specifically, the side of the wireless communication circuit board 20 along its longitudinal direction (the top surface in Figures 15 and 16) is fixed to the inner bottom surface of the bottom plate 41 (the bottom surface in Figures 15 and 16) by an appropriate method such as adhesive.

[0088] Next, the procedure for connecting the wireless communication device 2 to the connection part 3 will be explained.

[0089] First, the worker performing the connection work places the housing 4 over the power block 1 and inserts the protruding piece 21 of the wireless communication device 2 into the openings 301 and 302 of the box 30 from the second direction D2. Once the worker has finished housing the power block 1 inside the housing 4, the protruding piece 21 is placed inside the box 30 through the openings 301 and 302 (see Figure 16), and the four contacts 31 and the four conductors 22 make contact and conduct electricity.

[0090] In this embodiment 3, the wireless communication device 2 is fixed to the bottom plate 41 of the housing 4, so the wireless communication device 2 is electrically connected to the connection part 3 during the process of housing the power supply block 1 in the housing 4. Then, when the power supply block 1 is housed in the housing 4, the bottom plate 41 of the housing 4 restricts the wireless communication device 2 from moving in the direction away from the connection part 3 (the opposite direction to the second direction D2).

[0091] However, since the power supply unit A3 restricts the movement of the wireless communication device 2 with the wall (bottom plate 41) of the housing 4, the electrical connection between the power supply block 1 and the wireless communication device 2 via the connection part 3 is less likely to be disconnected. As a result, the power supply unit A3 can improve the reliability of the electrical connection between the power supply block 1 and the wireless communication device 2.

[0092] (2-4) Details of the lighting equipment The lighting device B1 according to this embodiment (hereinafter abbreviated as lighting device B1) comprises a light source unit 5 and a fixture body 6 that supports the light source unit 5 (see Figures 17-19). The light source unit 5 is detachably attached to the fixture body 6 which is directly attached to the ceiling. However, the fixture body 6 may be embedded in the ceiling. Alternatively, the fixture body 6 may be directly attached to the wall or embedded in the wall.

[0093] (2-4-1) Main body of the device The main body of the device 6 comprises a long, box-shaped housing section 60 with an open bottom, a pair of reflectors 61 projecting diagonally upward from the open edges on both sides along the longitudinal direction of the housing section 60, and a pair of end plates 62 provided at both ends of the housing section 60 and the pair of reflectors 61 in the longitudinal direction (see Figures 18 and 19). The housing section 60 and the pair of reflectors 61 are integrally formed by punching and bending metal plates.

[0094] The fixture body 6 is installed on the ceiling by inserting suspension bolts through at least two of the multiple mounting holes 63 provided on the bottom (top) surface of the housing 60, and tightening nuts onto these suspension bolts. In addition, a power cable is inserted through one of the multiple power supply holes 64 provided on the bottom surface of the housing 60.

[0095] A terminal block 65 is attached to the bottom surface of the housing section 60 (see Figure 18). The terminal block 65 is electrically connected to the power lines. The ends of the power lines are provided with power connectors (not shown) that are electrically connected to the power connectors (not shown) of the power supply unit A1.

[0096] However, the power cable inserted through the power hole 64 of the fixture body 6 is electrically connected to the terminal block 65, and via the terminal block 65, power line, and power connector, is electrically connected to the power supply A1 of the light source unit 5.

[0097] The housing section 60 has a pair of hooking holes and a pair of hooking parts 601 located near both ends in its longitudinal direction (see Figure 18). The pair of hooking holes are provided on the side wall of one end of the housing section 60 in the short direction. The pair of hooking parts 601 are positioned on the upper part of the other end of the housing section 60 in the short direction (see Figure 18).

[0098] (2-4-2) Light source unit As shown in Figures 18 and 19, the light source unit 5 comprises an LED module 50, a mounting member 51, a cover 52, and a power supply A1.

[0099] The LED module 50 has two substrates 500 and a number of LEDs (Light Emitting Diodes) mounted on the surface (bottom surface) of each substrate 500 (see Figure 18). The light-emitting element, an LED (not shown), is, for example, a packaged white LED for illumination. However, the light-emitting element is not limited to an LED, and may be an organic electroluminescent element or a semiconductor laser element, etc. The number of substrates 500 in the LED module 50 is not limited to two, and may be three or more, or even just one.

[0100] Each circuit board 500 is formed in a long rectangular shape. Numerous LEDs are mounted in a single row at equal intervals along the longitudinal direction of each circuit board 500, in the center of the short side of the surface (bottom surface) of each circuit board 500. The numerous LEDs are electrically connected in series or series-parallel by printed wiring formed on the surface of each circuit board 500. In addition, two sets of connectors 502 are mounted on one end of the longitudinal side of the surface of each circuit board 500 (see Figure 18). The printed wiring formed on the surface of each circuit board 500 is electrically connected via the two sets of connectors 502.

[0101] The mounting member 51 is formed from a metal plate into a long, rectangular trough shape (see Figures 18 and 19). The mounting member 51 has a long, rectangular base plate 510 and a pair of side plates 511 that rise upward from both ends along the longitudinal direction of the base plate 510. The LED module 50 is attached to the underside of the base plate 510 by a plurality of claws 512 that are cut out from the base plate 510 (see Figure 18).

[0102] The mounting member 51 is provided with a pair of hook fittings 513 that protrude outwards from one end in the short direction near both ends in the longitudinal direction (see Figures 18 and 19). Furthermore, the mounting member 51 is provided with a pair of hook springs 514 at the other end in the short direction near both ends in the longitudinal direction (see Figure 19). The pair of hook fittings 513 and the pair of hook springs 514 play a role in holding the light source unit 5 to the fixture body 6, as will be described later.

[0103] Power supply unit A1 has the same configuration as power supply unit A1 according to Embodiment 1. However, the light source unit 5 may be equipped with a power supply unit having the same configuration as power supply unit A2 according to Embodiment 2 or power supply unit A3 according to Embodiment 3. Power supply unit A1 is attached to the bottom plate 510 of the mounting member 51 so that the opening of the housing 4 faces the upper surface of the bottom plate 510 (see Figure 19).

[0104] The cover 52 has a long, semi-cylindrical cover body 520, a pair of cover ends 521 attached to each of the longitudinal ends of the cover body 520, a pair of protruding walls 522, and a pair of extensions 523 (see Figures 18 and 19). However, the shape of the cover body 520 is not limited to a long, semi-cylindrical shape, but can be any shape such as a rectangular tube.

[0105] The pair of extensions 523 project inward from both ends of the cover body 520 in the short direction along the longitudinal direction of the cover body 520. The pair of protruding walls 522 project upward from the pair of extensions 523 along the longitudinal direction of the cover body 520 (see Figure 19). The cover body 520, the pair of protruding walls 522, and the pair of extensions 523 are integrally formed from a translucent synthetic resin such as acrylic resin or polycarbonate resin.

[0106] The pair of cover ends 521 are formed in a semi-circular shape in plan view from a material having the same light-transmitting properties as the cover body 520. The pair of cover ends 521 are attached one to each of the longitudinal ends of the cover body 520. In other words, both longitudinal ends of the cover body 520 are closed by the cover ends 521.

[0107] The cover 52 houses the mounting member 51 between a pair of protruding walls 522, and is attached to the mounting member 51 by the upper ends of the pair of protruding walls 522 being hooked onto the tips (upper ends) of the pair of side plates 511 of the mounting member 51 (see Figure 19).

[0108] The light source unit 5 is temporarily suspended from the fixture body 6 by hooking the ends of a pair of hook fittings 513 into a pair of hook holes in the housing section 60. While the light source unit 5 is temporarily suspended, wiring work such as connecting the power connector of the power cable to the power connector 12 of the power supply unit A1 is performed. After the wiring work is completed, the light source unit 5 is hooked onto a pair of hook springs 514 one by one into a pair of hook sections 601, and then pressed against the fixture body 6 from below so that the power supply unit A1 is housed in the housing section 60, and is held in place by the spring force of the pair of hook springs 514 (see Figure 17).

[0109] (2-4-3) Operation of the lighting device Lighting devices B1 are installed, for example, on the ceiling of an office. Often, multiple lighting devices B1 are installed on the office ceiling in a row, spaced apart both vertically and horizontally. These multiple lighting devices B1 installed on the office ceiling can communicate wirelessly with each other. That is, when the wireless communication device 2 of any one of the lighting devices B1 receives a wireless signal from a remote controller or the like, the wireless communication device 2 of the lighting device B1 that received the wireless signal transmits a wireless signal containing the control information included in the received wireless signal. Then, the wireless communication devices 2 of one or more other lighting devices B1 receive the wireless signal and transmit the received wireless signal further. In this way, the wireless communication devices 2 of multiple lighting devices B1 send and receive wireless signals in a bucket brigade-like fashion, enabling remote control of dimming, color adjustment, etc., by transmitting control information to lighting devices B1 that are beyond the reach of the remote controller's wireless signal.

[0110] (2-5) Modified lighting devices Next, several modifications of the lighting device B1 according to the embodiment will be described with reference to the drawings. However, the basic configurations of the lighting devices B1, B2, and B3 of each modification described below are the same as the basic configuration of the lighting device B1 according to the embodiment. Therefore, components that are common to or substantially common with the basic configuration of the lighting device B1 according to the embodiment will be denoted by the same reference numerals, and their illustration and description will be omitted as appropriate. In the following description, "substantially common components" means components that differ slightly in shape, size, etc., but have the same function.

[0111] (2-5-1) Variation 1 The lighting device B2 in Modified Example 1 is a so-called spotlight and is detachably attached to a lighting wiring duct (also called a lighting duct) (see Figure 20). In the following description, the front-to-back, left-to-right, and up-and-down directions of the lighting device B2 in Modified Example 1 are defined as follows, assuming that the axial direction (longitudinal direction) of the main body 70 and the longitudinal direction of the arm 75 are perpendicular to each other, as shown in Figure 20. That is, the longitudinal direction of the arm 75 is defined as the up-and-down direction, the axial direction of the main body 70 (the direction perpendicular to the longitudinal direction of the arm 75) is defined as the front-to-back direction, and the direction perpendicular to the up-and-down direction and the front-to-back direction is defined as the left-to-right direction (see arrows in Figure 20).

[0112] The lighting device B2 of the modified example 1 comprises a luminaire B21, an arm 75, and a plug unit B22 (see Figure 20). The plug unit B22 is mechanically and electrically detachably attached to a lighting wiring duct installed on the ceiling or the like. The arm 75 is rotatably attached to the lower part of the plug unit B22. The axis of rotation of the arm 75 is parallel to the vertical direction. The luminaire B21 is supported by the arm 75 so as to be rotatable in a plane including the vertical and front-back directions. However, the rotatable range of the luminaire B21 is approximately 90 degrees, from a position where the axial direction of the main body 70 is perpendicular to the longitudinal direction (vertical direction) of the arm 75 (see Figure 20) to a position where the axial direction of the main body 70 is parallel.

[0113] The lighting fixture B21 comprises a main body 70, a light source unit 72, a lens unit 73, a power supply A2, an end cover 76, and the like (see Figures 20 and 21).

[0114] The main body 70 has a first main body portion 701 and a second main body portion 702. The first main body portion 701 and the second main body portion 702 are each formed by die-casting an aluminum alloy into a cylindrical shape with open ends. The first main body portion 701 and the second main body portion 702 have the same diameter but different axial lengths. The second main body portion 702 is formed to be longer in the axial length than the first main body portion 701.

[0115] The second main body 702 has a rectangular slit 703 formed from its rear end to the axial center. The width (distance in the left-right direction) of the slit 703 is wider than the width of the arm 75.

[0116] The light source unit 72 includes an LED 720 which is the light source, a holder 721, a pair of connectors 722, a thermal conductive sheet, and a unit body 724 (see Figure 21). The LED 720 is a COB (Chip on Board) type white LED for lighting. The unit body 724 is formed in a disc shape by die-casting an aluminum alloy.

[0117] A rectangular recess is provided in the center of the front of the unit body 724. A rectangular heat conductive sheet is housed in this recess. In addition, one screw insertion hole 725 and one screw hole 726 are provided on both the left and right ends of the unit body 724 (see Figure 21).

[0118] A holder 721 for holding the LED 720 is attached to the front of the unit body 724. The holder 721 is made of synthetic resin and is formed in a frame shape with a square window opening in the center. The holder 721 holds the LED 720 by fitting it into the window. The LED 720, held by the holder 721 and attached to the unit body 724, is in close contact with the thermal conductive sheet and is thermally connected to the unit body 724 via the thermal conductive sheet.

[0119] The lens unit 73 includes a lens, a lens holder, a cover 732, a rotor 733, etc. (see Figure 21). The lens is a Fresnel lens formed from a light-transmitting synthetic resin such as silicone resin, acrylic resin, or polycarbonate resin. The lens holder is formed in an annular shape from synthetic resin. The lens holder holds the lens by surrounding its periphery.

[0120] The cover 732 is formed in a disc shape from a translucent synthetic resin such as acrylic resin. The cover 732 is attached to the rotor 733 as described later. The cover 732 prevents insects from entering the rotor 733 by covering the front surface of the rotor 733 (see Figure 20). The rotor 733 has a cylindrical portion and an annular operating portion 734 provided at the front end of the cylindrical portion (see Figure 20). The lens and lens holder are housed inside the cylindrical portion.

[0121] The lens unit 73 is housed within the first main body portion 701 of the main body 70, as will be described later (see Figures 20 and 21). Here, the lens unit 73 moves in the front-rear direction within the cylindrical portion by operating the operating portion 734 to rotate the rotor 733. In other words, the lens unit 73 can adjust the illumination range of the light emitted from the LED 720 and focused by the lens by changing the relative distance between the LED 720 and the lens by operating the operating portion 734.

[0122] In the modified example 1, the power supply A2 has an AC / DC conversion block 74A and a DC conversion block 74B (see Figure 21).

[0123] The AC / DC conversion block 74A has an AC / DC conversion circuit that converts AC voltage (AC power) supplied from the power system via the lighting wiring duct and plug unit B22 to DC voltage (DC power). The AC / DC conversion circuit consists of a first printed circuit board 741 on which multiple circuit components are mounted on a double-sided printed circuit board. The AC / DC conversion block 74A further includes a first heat sink 743 to which the first printed circuit board 741 is attached, and a first heat conductive member 745 interposed between the first printed circuit board 741 and the first heat sink 743 (see Figure 21).

[0124] The DC conversion block 74B includes a DC conversion circuit, a connection part 3, a wireless communication device 2, and a regulating member 16. The DC conversion circuit has a DC conversion circuit that converts (steps down) the DC voltage output from the AC / DC conversion block 74A to a DC voltage suitable for the LED 720. The DC conversion circuit is composed of a second printed circuit board 742 on which multiple circuit components are mounted on a double-sided printed circuit board. The connection part 3 is mounted on the second printed circuit board 742. Furthermore, the DC conversion block 74B also includes a second heat sink 744 to which the second printed circuit board 742 is attached, and a second heat conductive member 746 interposed between the second printed circuit board 742 and the second heat sink 744 (see Figure 21).

[0125] The end cover 76 has a cover plate 760, a mounting portion 761, a first boss 764, and a second boss 765 (see Figure 21). The cover plate 760, the mounting portion 761, the first boss 764, and the second boss 765 are integrally formed from aluminum alloy die casting.

[0126] The mounting portion 761 is configured to rotatably attach the arm 75 to the end cover 76. Two screw holes 7610 are provided on the front surface of the mounting portion 761, spaced apart in the left-right direction (see Figure 21). That is, the AC / DC conversion block 74A is attached to the end cover 76 by screwing the first heat sink 743 into these two screw holes 7610. Furthermore, recesses 7611 are provided at both ends of the mounting portion 7611 in the left-right direction. One screw hole 7612 is provided on the bottom surface of each recess 7611 (see Figure 21).

[0127] The first boss 764 is formed in a roughly pyramidal truncated shape. The first boss 764 is integrally formed with the cover plate 760 so as to protrude forward from the lower end of the front surface of the cover plate 760. A screw hole 7640 is formed on the tip surface (front surface) of the first boss 764. The second boss 765 is formed in a roughly prismatic shape. The second boss 765 is integrally formed with the cover plate 760 so as to protrude forward from both sides of the first boss 764 at the lower end of the front surface of the cover plate 760. Two screw holes 7650 are provided on the tip surface (front surface) of the second boss 765. These two screw holes 7650 are located on the left and right sides of the first boss 764 when viewed from the front.

[0128] A DC conversion block 74B is attached to the second boss 765. In other words, two screws, one inserted into each of the screw insertion holes provided in the second heat sink 744, are then screwed into each of the two screw holes 7650, thereby fixing the second heat sink 744 to the end cover 76.

[0129] The end cover 76 is attached to the second main body 702 by being screwed into the screw hole 7640 of the first boss 764 and the two screw holes 7612 of the mounting portion 761.

[0130] (2-5-2) Modification example 2 The lighting device B3 in the modified example 2 is a so-called downlight, which is installed on the ceiling, for example, by being embedded in a recessed hole provided in the ceiling.

[0131] The lighting device B3 of the modified example 2 comprises a lamp body 8 and a power supply device A3 (see Figure 22). The lamp body 8 has a truncated cone-shaped frame 80, a cover 81 that closes the bottom surface of the frame 80, three mounting springs 82, and an LED (not shown). The LED is positioned above the bottom surface of the frame 80 and covered by the cover 81. The three mounting springs 82 are fixed to the frame 80 so as to protrude from the edge of the frame 80 along the radial direction of the frame 80.

[0132] The power supply A3 in Modified Example 2 has a configuration common to the power supply A3 according to Embodiment 3. The power supply A3 in Modified Example 2 includes a power supply block 1, a wireless communication device 2, a connection part 3, and a metal housing 4. The housing 4 is formed in the shape of a rectangular parallelepiped. The power supply block 1, the wireless communication device 2, and the connection part 3 are housed inside the housing 4. The housing 4 of the power supply A3 in Modified Example 2 is attached to the upper part of the frame 80. However, the power supply in Modified Example 2 may have a configuration common to the power supply A1 according to Embodiment 1.

[0133] In the modified example 2, the lighting device B3 is installed on the ceiling by inserting the power supply A3 into the ceiling space through the recessed hole, and sandwiching the ceiling panel around the recessed hole between the periphery of the frame 80 and the three mounting springs 82.

[0134] However, the lighting device B3 of the modified example, like the lighting device B1 according to the embodiment, can improve the reliability of the electrical connection between the power supply block 1 and the wireless communication device 2.

[0135] (3) Summary A power supply device (A1) according to a first aspect of the present disclosure comprises a power supply block (1) that supplies power to a load, a wireless communication device (2) that performs wireless communication, a housing (4) that houses the power supply block (1) and the wireless communication device (2), and a restricting member. The power supply block (1) has a plate-shaped power supply board (10) on which circuit components are mounted on its surface (100), and a connection part (3) provided on the power supply board (10) that is electrically connected to the wireless communication device (2). The connection part (3) is configured so that the wireless communication device (2) can be inserted into and removed electrically. The restricting member is provided on the housing (4) and restricts the movement of the wireless communication device (2), which is electrically connected to the connection part (3), in the direction of disengaging from the connection part (3).

[0136] In the first embodiment, the power supply device (A1) restricts the movement of the wireless communication device (2), which is electrically connected to the connection part (3), from moving away from the connection part (3) by a restricting member provided on the housing (4), thereby improving the reliability of the electrical connection between the power supply block (1) and the wireless communication device (2).

[0137] A power supply device (A1) according to a second aspect of this disclosure can be realized by combining it with the first aspect. In the power supply device (A1) according to the second aspect, the housing (4) preferably has a wall (second side plate 43) facing the wireless communication device (2) along the direction (first direction D1) from which it exits (from the connection part 3). The regulating member preferably includes a wall.

[0138] The power supply device (A1) according to the second embodiment simplifies the configuration compared to the case where the regulating member is provided separately from the housing (4) by utilizing the wall (second side plate 43) of the housing (4) as a regulating member.

[0139] A power supply unit (A1) according to a third aspect of this disclosure can be realized by combining it with the first aspect. In the power supply unit (A1) according to the third aspect, the regulating member preferably includes a projection (45) that protrudes from the housing (4) into the space in which the power supply block (1) and the wireless communication device (2) are housed.

[0140] In the third embodiment, the power supply device (A1) restricts the movement of the wireless communication device (2) by a protrusion (45) that extends from the housing (4), thus simplifying the configuration compared to the case where a restricting member is provided separately from the housing (4).

[0141] A power supply device (A1) according to a fourth aspect of this disclosure can be realized by combining it with the first aspect. In the power supply device (A1) according to the fourth aspect, the housing (4) preferably has a wall (bottom plate 41) facing the surface (100) of the power supply board (10). The regulating member is preferably provided in the wall and includes a slit (46) through which at least a portion of the wireless communication device (2) is inserted.

[0142] In the fourth embodiment, the power supply device (A1) restricts the movement of the wireless communication device (2) by a slit (46) provided in the housing (4), thus simplifying the configuration compared to the case where a restricting member is provided separately from the housing (4).

[0143] A power supply unit (A1) according to a fifth aspect of this disclosure can be realized by combining it with the first aspect. In the power supply unit (A1) according to the fifth aspect, the regulating member (47) is preferably attached to the housing (4) and protrudes from the housing (4) into the space in which the power supply block (1) and the wireless communication device (2) are housed.

[0144] The power supply device (A1) according to the fifth embodiment can restrict the movement of the wireless communication device (2) with a simple configuration.

[0145] A power supply device (A2) according to a sixth aspect of the present disclosure comprises a power supply block (1) that supplies power to a load, a wireless communication device (2) that performs wireless communication, and restricting members (16; 17; 18). The power supply block (1) has a plate-shaped power supply board (10) on which circuit components are mounted on its surface (100), and a connection part (3) provided on the power supply board (10) that is electrically connected to the wireless communication device (2). The connection part (3) is configured so that the wireless communication device (2) can be inserted into and removed electrically. The restricting members (16; 17; 18) are provided on the power supply board (10) and restrict the movement of the wireless communication device (2), which is electrically connected to the connection part (3), in the direction (first direction D1) that will cause it to detach from the connection part (3).

[0146] In the power supply device (A2) according to the sixth embodiment, the movement of the wireless communication device (2) is restricted by the restricting members (16; 17; 18), making it difficult for the electrical connection between the power supply block (1) and the wireless communication device (2) via the connection part (3) to be released. As a result, the power supply device (A2) according to the sixth embodiment can improve the reliability of the electrical connection between the power supply block (1) and the wireless communication device (2).

[0147] A power supply device (A2) according to the seventh aspect of this disclosure can be realized by combining it with the sixth aspect. In the power supply device (A2) according to the seventh aspect, it is preferable that the restricting member (18) is displaceable between a restricting position that restricts the movement of the wireless communication device (2) in the direction of withdrawal (first direction D1) and an unrestricted position that does not restrict the movement of the wireless communication device (2) in the direction of withdrawal.

[0148] The power supply device (A2) according to the seventh embodiment restricts the movement of the wireless communication device (2) by displacing the restricting member (18) from an unrestricted position to a restricted position after electrically connecting the wireless communication device (2) to the connection part (3), thereby simplifying the connection work between the wireless communication device (2) and the connection part (3).

[0149] A power supply device (A3) according to an eighth aspect of the present disclosure comprises a power supply block (1) that supplies power to a load, a wireless communication device (2) that performs wireless communication, and a housing (4) that houses the power supply block (1) and the wireless communication device (2). The power supply block (1) has a plate-shaped power supply board (10) on which circuit components are mounted on its surface (100), and a connection part (3) provided on the power supply board (10) that is electrically connected to the wireless communication device (2). The connection part (3) is configured so that the wireless communication device (2) can be inserted into and removed electrically. The housing (4) has a wall (bottom plate 41) facing the wireless communication device (2) in the direction in which the wireless communication device (2) can be removed from the connection part (3). The wireless communication device (2) is fixed to the wall.

[0150] In the eighth embodiment, the power supply unit (A3) restricts the movement of the wireless communication device (2) by the walls of the housing (4), making it less likely for the electrical connection between the power supply block (1) and the wireless communication device (2) via the connection part (3) to be disconnected. As a result, the power supply unit (A3) in the eighth embodiment can improve the reliability of the electrical connection between the power supply block (1) and the wireless communication device (2).

[0151] A lighting device (B1; B2; B3) according to the ninth aspect of this disclosure comprises a power supply device (A1; A2; A3) according to any of the first to eighth aspects, and one or more light sources (LED modules 50) that are lit by power supplied from the power supply device (A1; A2; A3).

[0152] The lighting device (B1; B2; B3) according to the ninth embodiment can improve the reliability of the electrical connection between the power supply block (1) and the wireless communication device (2).

[0153] A lighting device (B1; B2; B3) according to a tenth aspect of this disclosure can be realized in combination with the ninth aspect. In the lighting device (B1; B2; B3) according to the tenth aspect, it is preferable that the wireless communication device (2) controls the power supply block (1) to adjust at least one of the light intensity and light color of the light emitted from the light source in response to a command obtained by wireless communication.

[0154] The lighting device (B1; B2; B3) according to the 11th embodiment allows for remote control of the light source while reducing wiring. [Explanation of Symbols]

[0155] A1;A2;A3 Power supply B1;B2;B3 Lighting device D1 1st direction 1 Power Block 2 Wireless communication device 3. Connection part 4 cabinets 10 Power supply board 16 Regulating members 17 Regulating members 18 Regulating members 41 Bottom plate (wall) 43. Second side plate (wall, regulating member) 45 Protrusion 46 slits 47 Regulating members 50 LED modules (light sources) 100 (Surface of power supply board)

Claims

1. A power supply block that supplies power to the load, A wireless communication device that performs wireless communication, The power supply block and the housing that houses the wireless communication device, Regulating member and, Equipped with, The aforementioned power supply block is A board-shaped power supply board with circuit components mounted on its surface, A connection part provided on the power supply board and electrically connected to the wireless communication device, It has, The connection portion is configured such that the wireless communication device is electrically connected in a removable manner. The restricting member is provided in the housing and restricts the wireless communication device, which is electrically connected to the connection part, from moving in a direction that would cause it to detach from the connection part. power supply.

2. The housing has a wall facing the wireless communication device along the direction of exit, The regulating member includes the wall, The power supply device according to claim 1.

3. The restricting member includes a projection that protrudes from the housing into the space in which the power supply block and the wireless communication device are housed. The power supply device according to claim 1.

4. The housing has a wall facing the surface of the power supply board, The regulating member is provided in the wall and includes a slit through which at least a portion of the wireless communication device is inserted. The power supply device according to claim 1.

5. The restricting member is attached to the housing and protrudes from the housing into the space in which the power supply block and the wireless communication device are housed. The power supply device according to claim 1.

6. A power supply block that supplies power to the load, A wireless communication device that performs wireless communication, Regulating member and, Equipped with, The aforementioned power supply block is A board-shaped power supply board with circuit components mounted on its surface, A connection part provided on the power supply board and electrically connected to the wireless communication device, It has, The connection portion is configured such that the wireless communication device is electrically connected in a removable manner. The restricting member is provided on the power supply board and restricts the wireless communication device, which is electrically connected to the connection part, from moving in a direction that will cause it to detach from the connection part. power supply.

7. The restricting member is displaceable between a restricting position that restricts the movement of the wireless communication device in the direction of withdrawal and an unrestricted position that does not restrict the movement of the wireless communication device in the direction of withdrawal. The power supply device according to claim 6.

8. A power supply block that supplies power to the load, A wireless communication device that performs wireless communication, The power supply block and the housing that houses the wireless communication device, Equipped with, The aforementioned power supply block is A board-shaped power supply board with circuit components mounted on its surface, A connection part provided on the power supply board and electrically connected to the wireless communication device, It has, The connection portion is configured such that the wireless communication device is electrically connected in a removable manner. The housing has a wall facing the wireless communication device in the direction in which the wireless communication device exits the connection part, The wireless communication device is fixed to the wall. power supply.

9. A power supply device according to any one of claims 1 to 8, One or more light sources that are lit by the power supplied from the power supply device, Equipped with, Lighting device.

10. The wireless communication device controls the power supply block to adjust at least one of the light intensity and color of the light emitted from the light source in accordance with the command obtained by the wireless communication. The lighting device according to claim 9.

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