Power supply units, lighting devices, and lighting fixtures

Abstract

To improve wireless performance.SOLUTION: A power supply device E1 comprises a power supply unit, a wireless communication unit C1, and a fitting member 4. The wireless communication unit C1 comprises an antenna part and a wireless circuit part 30. The wireless circuit part 30 performs at least one of transmission or reception of wireless signals using electromagnetic waves as a medium via the antenna part. The fitting member 4 is formed in a long shape, and fitted with the power supply unit. The wireless communication unit C1 comprises a circuit board 32 in which the antenna part and the wireless circuit part 30 are formed, and a case 33 housing the circuit board 32 taking a posture in which a surface in which the antenna part is formed is inclined with respect to a second surface 40B of the fitting member 4. The wireless communication unit C1 is arranged on the side of a fitting surface of the fitting member 4 so as to make the thickness direction of the circuit board 32 intersect with the longitudinal direction of the fitting member 4.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to a power supply device, a lighting device, and a lighting fixture. More specifically, it relates to a power supply device having a wireless communication function, a lighting device including the power supply device, and a lighting fixture including the lighting device.

Background Art

[0002] As a conventional example, a lighting fixture described in Patent Document 1 is exemplified. The lighting fixture described in Patent Document 1 (hereinafter referred to as the 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 other lighting fixtures or lighting control devices.

[0003] The wireless communication unit has a wireless communication unit case fixed to a sheet metal, a wireless communication module substrate housed in the wireless communication unit case, and an antenna provided on the wireless communication module substrate. The wireless communication module substrate is fixed by a substrate fixing mechanism provided in the wireless communication unit case so as to be parallel to the sheet metal.

[0004] In the above conventional example, by arranging the wireless communication module substrate provided with the antenna with a space distance of 10 mm or more from the sheet metal of the lighting fixture, a space for the radio waves around the antenna to wrap around is secured to improve the antenna characteristics.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] Incidentally, in the conventional example described above, the sheet metal of the fixture body is positioned in front of the antenna provided on the wireless communication module board. As a result, the radio wave intensity of the radio waves emitted from the antenna and the radio waves arriving at the antenna are absorbed and reflected by the sheet metal, which tends to reduce the sensitivity (wireless performance) in front of (directly below) the lighting fixture.

[0007] The purpose of this disclosure is to provide a power supply device, a lighting device, and a lighting fixture that can improve wireless performance. [Means for solving the problem]

[0008] A power supply device according to one aspect of the present disclosure comprises a power supply unit, a wireless communication unit, and a mounting member. The power supply unit converts input power into power and outputs it to a load. The wireless communication unit has an antenna section and a wireless circuit section. The antenna section emits electromagnetic waves into space or receives electromagnetic waves from space. The wireless circuit section transmits or receives at least one of wireless signals using the electromagnetic waves as a medium via the antenna section. The mounting member is formed in an elongated shape and the power supply unit is mounted on it. The power supply unit is mounted on the second surface of the mounting member opposite to the first surface to which the load is mounted. The power supply unit has a power supply board on which a printed circuit for power conversion is formed, and a power supply case that houses the power supply board and is attached to the mounting member. The wireless communication unit has a circuit board on which the antenna section and the wireless circuit section are formed, and a case that houses the circuit board in a position inclined with respect to the second surface of the mounting member, with the surface on which the antenna section is formed. The wireless communication unit is positioned on the second surface side of the mounting member such that the thickness direction of the circuit board intersects with the longitudinal direction of the mounting member. The power supply case is formed in the shape of a long box. The case is connected to one end of the power supply case in the longitudinal direction. A power supply device according to one aspect of the present disclosure comprises a power supply unit that converts input power into power and outputs it to a load; a wireless communication unit having an antenna section that emits electromagnetic waves into space or receives electromagnetic waves from space, and a wireless circuit section that transmits or receives at least one of wireless signals using the electromagnetic waves as a medium via the antenna section; and a mounting member formed in an elongated shape to which the power supply unit is attached. The power supply unit is attached to the second surface of the mounting member opposite to the first surface to which the load is attached. The power supply unit comprises a power supply board on which the power conversion is performed and a power supply case that houses the power supply board and is attached to the mounting member. The wireless communication unit comprises a circuit board on which the antenna section and the wireless circuit section are formed and a case that houses the circuit board in a position inclined with respect to the second surface of the mounting member, with the surface on which the antenna section is formed. The wireless communication unit is arranged on the second surface side of the mounting member such that the thickness direction of the circuit board intersects with the longitudinal direction of the mounting member. The power supply case is formed in an elongated box shape. The aforementioned case is spaced apart from the power supply case and faces one end of the power supply case in the longitudinal direction.

[0009] A lighting device according to one aspect of the present disclosure comprises a power supply unit and a light source that serves as the load for the power supply unit. The light source is mounted on a first surface of the mounting member. The power supply unit is mounted on a second surface of the mounting member opposite to the first surface.

[0010] A lighting fixture according to one aspect of this disclosure comprises a lighting device and a fixture body that supports the lighting device.

[0011] A lighting fixture according to one aspect of the present disclosure comprises a lighting device and a fixture body that supports the lighting device. The lighting device comprises a power supply unit and a light source attached to a mounting member and powered by the power supply unit. The power supply unit is supported by the fixture body. [Effects of the Invention]

[0012] The power supply, lighting device, and lighting fixture disclosed herein have the effect of improving wireless performance. [Brief explanation of the drawing]

[0013] [Figure 1] Figure 1 is a perspective view of a lighting fixture according to an embodiment of this disclosure. [Figure 2] Figure 2 is an exploded perspective view of the same lighting fixture and a light source unit which is a lighting device according to the present disclosure. [Figure 3] Figure 3 is a circuit block diagram of the same light source unit. [Figure 4] Figure 4 is a partially omitted perspective view of a power supply device according to an embodiment of this disclosure. [Figure 5] Figure 5 is a cross-sectional view of the wireless communication unit in the power supply unit shown above. [Figure 6] Figure 6 is another cross-sectional view of the same wireless communication unit. [Figure 7] Figure 7 is a cross-sectional view of the main part of the wireless communication unit shown above. [Figure 8] Figure 8 is a cross-sectional view of the wireless communication unit in Modification 1 of the power supply unit described above. [Figure 9] Figure 9A is a cross-sectional view of a modified example 2 of the power supply unit described above. Figure 9B is a cross-sectional view of another structure of modified example 2 of the power supply unit described above. Figure 9C is a cross-sectional view of yet another structure of modified example 2 of the power supply unit described above. [Figure 10] Figure 10A is a cross-sectional view of Modification Example 3 of the power supply device described above. Figure 10B is a longitudinal sectional view of another structure of Modification Example 3 of the power supply device described above. [Figure 11] Figure 11A is a plan view of Modification Example 4 of the power supply device described above. Figure 11B is a longitudinal sectional view of Modification Example 4 of the power supply device described above. Figure 11C is a cross-sectional view of Modification Example 4 of the power supply device described above. Figure 11D is another longitudinal sectional view of Modification Example 4 of the power supply device described above. Figure 11E is yet another longitudinal sectional view of Modification Example 4 of the power supply device described above. [Figure 12] Figure 12 is a plan view of Modification Example 5 of the power supply device described above. [Figure 13] Figure 13A is a longitudinal sectional view of Modification Example 6 of the power supply device described above. Figure 13B is a cross-sectional view of Modification Example 6 of the power supply device described above. Figure 13C is a cross-sectional view of a light source unit including Modification Example 6 of the power supply device described above. [Figure 14] Figure 14A is a bottom view with partial omission of Modification Example 7 of the power supply device described above. Figure 14B is a bottom view with partial omission of Modification Example 7 of the power supply device described above. Figure 14C is a bottom view with partial omission of Modification Example 7 of the power supply device described above. Figure 14D is a bottom view with partial omission of Modification Example 7 of the power supply device described above. Figure 14E is a bottom view with partial omission of Modification Example 7 of the power supply device described above. [Figure 15] Figure 15A is a bottom view with partial omission of Modification Example 8 of the power supply device described above. Figure 15B is a bottom view with partial omission of Modification Example 8 of the power supply device described above. [Figure 16] Figure 16A is a cross-sectional view of Modification Example 9 of the power supply device described above. Figure 16B is a longitudinal sectional view of Modification Example 9 of the power supply device described above. Figure 16C is a cross-sectional view of Modification Example 9 of the power supply device described above. [Figure 17] Figure 17A is a cross-sectional view of Modification Example 10 of the power supply device described above. Figure 17B is a longitudinal sectional view of Modification Example 10 of the power supply device described above. [Figure 18] Figure 18A is a cross-sectional view of Modification Example 11 of the power supply device described above. Figure 18B is a cross-sectional view of Modification Example 11 of the power supply device described above. [Figure 19]Figure 19A is a cross-sectional view of the case in modified example 12 of the power supply unit described above. Figure 19B is a cross-sectional view of another case in modified example 12 of the power supply unit described above. [Figure 20] Figure 20A is a cross-sectional view of modified power supply device 13. Figure 20B is a cross-sectional view of modified power supply device 13. Figure 20C is a cross-sectional view of modified power supply device 13. Figure 20D is a longitudinal cross-sectional view of modified power supply device 13. [Figure 21] Figure 21 is a cross-sectional view of a lighting fixture according to another embodiment of the present disclosure. [Modes for carrying out the invention]

[0014] Hereinafter, power supply devices, lighting devices, and lighting fixtures according to embodiments of this disclosure will be described in detail with reference to the drawings. However, the figures described in the following embodiments are schematic diagrams, and the ratios of the size and thickness of each component do not necessarily reflect the actual dimensional ratios. Furthermore, the configurations described in the following embodiments are merely examples of this disclosure. This disclosure is not limited to the following embodiments, and various modifications are possible depending on the design, etc., as long as the effects of this disclosure can be achieved.

[0015] (1) Overview The power supply device E1 according to this embodiment comprises a power supply unit 2, a wireless communication unit C1, and a mounting member 4 (see Figure 2).

[0016] Power supply unit 2 converts the input power into power and outputs it to the load. The load is, for example, a light source for lighting, such as an LED. However, the load may also be a light source other than an LED, such as an organic electroluminescent element or a laser diode, or it may be something other than a light source.

[0017] The mounting member 4 is formed in an elongated shape to which the power supply unit 2 is attached. The power supply unit 2 is attached to the second side (40B) of the mounting member 4, which is opposite to the first side 40A to which the load (light source) is attached (see Figures 5 and 6). The power supply unit 2 has a power supply board 25 on which a printed circuit for power conversion is formed, and a power supply case 20 that houses the power supply board 25 and is attached to the mounting member 4. The power supply case 20 may be directly attached to the second side 40B of the mounting member 4. Alternatively, the power supply case 20 may be attached to the "second side" by being attached to a side plate 41 that protrudes perpendicularly to the second side 40B of the mounting member 4, as will be described later.

[0018] The wireless communication unit C1 includes an antenna section 31 and a wireless circuit section 30, a circuit board 32 on which the antenna section 31 and the wireless circuit section 30 are formed, and a case 33 that houses the circuit board (32).

[0019] The antenna unit 31 emits electromagnetic waves into space or receives electromagnetic waves from space. The wireless circuit unit 30 transmits or receives wireless signals using electromagnetic waves as a medium via the antenna unit 31, or at least one of the latter. The circuit board 32 has the antenna unit 31 and the wireless circuit unit 30 formed on it. In this embodiment, the electromagnetic waves used by the wireless circuit unit 30 as a medium for wireless signals may be radio waves, or electromagnetic waves other than radio waves, such as infrared light and visible light.

[0020] Case 33 houses the circuit board 32 in a position where the surface on which the antenna portion 31 is formed is tilted relative to the second surface 40B of the mounting member 4 (see Figure 5). Here, "tilted relative to the second surface 40B of the mounting member 4" means a position in which the surface on which the antenna portion 31 of the circuit board 32 is formed is not parallel to the second surface 40B of the mounting member 4. Note that "tilted position" also includes a position in which the surface on which the antenna portion 31 of the circuit board 32 is formed and the second surface 40B of the mounting member 4 are perpendicular.

[0021] Here, both the electromagnetic waves emitted from the antenna section 31 and the electromagnetic waves received by the antenna section 31 from space are strongest in the thickness direction of the circuit board 32. Therefore, by housing the circuit board 32 in the case 33 with the surface on which the antenna section 31 is formed tilted relative to the second surface 40B of the mounting member 4, attenuation of electromagnetic waves by the mounting member 4, which is made of a conductor such as metal, can be suppressed. As a result, the power supply device E1 according to this embodiment can achieve improved wireless performance compared to the case in which the circuit board 32 is housed in the case 33 with the surface on which the antenna section 31 is formed parallel to the second surface 40B of the mounting member 4. The case 33 may be directly attached to the second surface 40B of the mounting member 4. Alternatively, the case 33 may be attached to the "second surface side" of the mounting member 4 by attaching it to the second surface 40B or side plate of the mounting member 4 via a mounting bracket separate from the mounting member 4, as will be described later.

[0022] Furthermore, the wireless communication unit C1 is positioned on the second surface 40B side of the mounting member 4 such that the thickness direction of the circuit board 32 intersects with the longitudinal direction of the mounting member 4. Therefore, attenuation of electromagnetic waves emitted from or received by the antenna unit 31 by the power supply case 20 can be suppressed. As a result, the power supply device E1 according to this embodiment can improve wireless performance.

[0023] Furthermore, the lighting device (light source unit A1) according to the embodiment includes a power supply device E1 according to the embodiment and a light source (LED module 1) which is the load of the power supply device E1 according to the embodiment. The light source (LED module 1) is mounted on the first surface of the mounting member 4. The power supply device E1 is mounted on the second surface of the mounting member 4 opposite to the first surface.

[0024] However, the lighting device according to this embodiment can achieve improved wireless performance.

[0025] Furthermore, the lighting fixture B1 relating to the actual pond plate comprises a lighting device (light source unit A1) according to the embodiment and a fixture body 9 that supports the lighting device (light source unit A1) according to the embodiment.

[0026] However, the lighting fixture B1 according to this embodiment can achieve improved wireless performance.

[0027] (2) Details (2-1) Lighting fixtures First, the lighting fixture B1 according to the embodiment (hereinafter referred to as lighting fixture B1) will be described.

[0028] As shown in Figures 1 and 2, the lighting fixture B1 comprises a lighting device according to the embodiment, namely a light source unit A1 (hereinafter abbreviated as light source unit A1) and a fixture body 9 that supports the light source unit A1. The light source unit A1 is detachably attached to the fixture body 9 which is directly attached to the ceiling. However, the fixture body 9 may be embedded in the ceiling. Alternatively, the fixture body 9 may be directly attached to the wall or embedded in the wall.

[0029] The main body of the device 9 comprises a long, box-shaped housing section 90 with an open bottom, a pair of reflectors 91 projecting diagonally upward from the open edges on both sides along the longitudinal direction of the housing section 90, and a pair of end plates 92 provided at both ends of the housing section 90 and the pair of reflectors 91 in the longitudinal direction (see Figure 2). The housing section 90 and the pair of reflectors 91 are integrally formed by punching and bending metal plates.

[0030] The fixture body 9 is installed on the ceiling by inserting suspension bolts (not shown) through at least two of the multiple mounting holes 900 provided on the bottom surface of the housing 90, and tightening nuts (not shown) onto these suspension bolts. In addition, a power line is inserted through one of the multiple power supply holes 901 provided on the bottom surface of the housing 90. However, if multiple lighting fixtures B1 are installed, another power line for daisy-chaining may be inserted through a different power supply hole 901.

[0031] A terminal block 902 is mounted on the bottom surface of the housing 90. The terminal block 902 is electrically connected to the power cable 903. A power connector 904 is provided at the end of the power cable 903.

[0032] However, the power line inserted through the power hole 901 of the fixture body 9 is electrically connected to the terminal block 902, and via the terminal block 902, power cable 903, and power connector 904, it is electrically connected to the power unit 2 of the light source unit A1.

[0033] (2-2) Light source unit The light source unit A1 comprises an LED module 1, a power supply unit E1 according to this embodiment (hereinafter abbreviated as power supply unit E1), and a cover 7 (see Figure 2). In this embodiment, the mounting member 4, which is a component of the power supply unit E1, is also a component of the light source unit A1.

[0034] (2-2-1) LED module LED module 1 comprises a number of LEDs 10 and a substrate 11. The substrate 11 is formed in the shape of a long rectangular plate. The number of LEDs 10 are mounted in a single row at equal intervals along the longitudinal direction of the substrate 11, in the center of the short side on the surface (bottom surface) of the substrate 11 (see Figure 2).

[0035] (2-2-2) Mounting components The mounting member 4 is formed into a long, rectangular trough shape by processing a metal plate (for example, a steel plate). The mounting member 4 has a long, rectangular base plate 40 and a pair of side plates 41 that rise upward from both ends along the longitudinal direction of the base plate 40. The LED module 1 is attached to the lower surface (first surface 40A) of the base plate 40 by a plurality of claws cut out from the base plate 40. However, the mounting member 4 may be formed by extrusion molding of aluminum or an aluminum alloy, or it may be formed from a material other than a metal plate, for example, a synthetic resin.

[0036] (2-2-3) Cover The cover 7 is formed in a semi-cylindrical shape from a translucent synthetic resin such as acrylic resin or polycarbonate resin (see Figure 2). The cover 7 also has a pair of protruding walls 70 that project upward along its longitudinal direction. The cover 7 houses the mounting member 4 between the pair of protruding walls 70, and is attached to the mounting member 4 by hooking the hooks formed on the tips (upper ends) of the pair of protruding walls 70 onto the tips (upper ends) of the pair of side plates 41 of the mounting member 4. The cover 7 may also be made of inorganic glass such as quartz glass.

[0037] (2-2-4) Power supply device The power supply unit E1 comprises a power supply unit 2 and a wireless communication unit C1 (see Figure 2).

[0038] (2-2-4-1) Power supply unit The power supply unit 2 includes a lighting circuit 21 and a power supply case 20 that houses the lighting circuit 21 (see Figure 2).

[0039] The lighting circuit 21 includes a power supply board 25, which is a printed circuit board with conductors for wiring printed on a rectangular insulating substrate, and a plurality of circuit components 26 mounted on both the front and back surfaces of the power supply board 25 (see Figure 2). In other words, the lighting circuit 21 is composed of printed circuits.

[0040] Figure 3 shows the circuit configuration of the lighting circuit 21. The lighting circuit 21 includes a power conversion circuit 210, a constant current circuit 211, a control circuit 212, and the like.

[0041] The power conversion circuit 210 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 210 converts AC power supplied from an external power supply P1 through the power supply terminal section 22 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 210 may be equipped with a switching power supply circuit having 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.

[0042] The constant current circuit 211 includes, for example, a buck converter. The constant current circuit 211 steps down the DC voltage output from the power conversion circuit 210 and applies it to the LED module 1, and also adjusts the DC current flowing through the LED module 1. However, the constant current circuit 211 may be equipped with various chopper circuits, series regulators, etc., instead of a buck converter.

[0043] The control circuit 212 includes, for example, a microcontroller. The control circuit 212 controls the power conversion circuit 210 to maintain its output voltage at a constant DC voltage. Furthermore, the control circuit 212 controls the step-down chopper circuit of the constant current circuit 211 to match the DC current supplied from the constant current circuit 211 to the LED module 1 to a target value. The control circuit 212 also changes the target value of the DC current supplied to the LED module 1 in response to a dimming signal received from the wireless communication unit C1 via the signal connector 5.

[0044] Here, the power terminal section 22 is mounted on one end of the power supply board 25 in the longitudinal direction (see Figure 2). In this embodiment, the power terminal section 22 is a connector to which the power connector 904 is detachably connected, but instead of the power connector 904, it may be a terminal block to which the conductors of an electric wire are electrically connected. Alternatively, the power terminal section may be an output wire drawn from the lighting circuit 21 and may be soldered to the conductor of the power cable 903. Note that the configuration of the power terminal section 22 also includes configurations other than those described above.

[0045] The power supply case 20 has a rectangular bottom wall 200 and a pair of first side walls 201 that protrude downward along the short side of the bottom wall 200 from both ends in the longitudinal direction of the bottom wall 200 (see Figure 2). The power supply case 20 also has a pair of second side walls 202 that protrude downward along the longitudinal direction of the bottom wall 200 from both ends in the short side of the bottom wall 200 (see Figure 4). In other words, the power supply case 20 is formed in the shape of a long box with an opening 204 at the front (downward) of the bottom wall 200. The power supply case 20 also has a fixing piece 203 that protrudes outward from the tip of one of the second side walls 202 (see Figure 4). The fixing piece 203 is formed in the shape of a trough.

[0046] The power supply case 20 houses the power supply board 25 such that the bottom wall 200 and the power supply board 25 are approximately parallel (see Figure 2). The power supply case 20 has a plurality of claws cut out from a pair of second side walls 202, and supports the power supply board 25 by sandwiching it between these claws. The socket for the power supply terminal section 22 protrudes outside the power supply case 20 through a window hole provided in one of the first side walls 201.

[0047] The power supply unit 2 is mounted on the upper surface (second surface) of the mounting member 4 of the light source unit A1, such that the opening 204 of the power supply case 20 faces the mounting member 4 (see Figure 2). Specifically, the power supply case 20 is fixed to the mounting member 4 by screwing one of the second side walls 202 and the fixing piece 203 to each side plate 41 of the mounting member 4. However, the method of fixing the power supply case 20 to the mounting member 4 is not limited to screwing, and other appropriate fixing methods such as crimping can be used. Also, when mounted on the mounting member 4, the opening 204 of the power supply case 20 is closed by the bottom plate 40 of the mounting member 4.

[0048] (2-2-4-2) Wireless Communication Unit The wireless communication unit C1 includes a wireless circuit section 30, an antenna section 31, a circuit board 32 on which the wireless circuit section 30 and the antenna section 31 are formed, and a case 33 that houses the circuit board 32 (see Figures 3-6). The circuit board 32 consists of a printed circuit board with wiring conductors printed on a rectangular insulating substrate (see Figures 5 and 6). In other words, the wireless circuit section 30 is composed of a printed circuit. A plug 51 of the signal connector 5 is mounted on the end of the circuit board 32 (see Figure 6). The plug 51 is mechanically and electrically connected to a socket 50 mounted on the power supply board 25 of the lighting circuit 21 via a cable. The shape of the circuit board 32 is not limited to a rectangle, but includes various shapes such as polygons other than rectangles, circles, etc.

[0049] The antenna unit 31 is configured to emit electromagnetic waves (for example, radio waves in the 920 MHz band or 2.4 GHz band) into space and to receive electromagnetic waves from space. The antenna unit 31 is a so-called pattern antenna, for example, formed from a conductor printed on a circuit board 32. However, the antenna unit 31 is not limited to a pattern antenna and may be a patch antenna (microstrip antenna), chip antenna, rod antenna, film antenna, etc.

[0050] Here, the mounting surface of the circuit board 32 is divided into a region where the antenna section 31 is provided (first region S1) and a region where the wireless circuit section 30 is mounted (second region S2) (see Figure 6). The first region S1 and the second region S2 are regions obtained by dividing the mounting surface of the circuit board 32 along the shorter side.

[0051] The wireless circuit unit 30 extracts a wireless signal from the radio waves received by the antenna unit 31 and obtains control information from the wireless signal. Furthermore, the wireless circuit unit 30 converts the control information into a dimming signal and transmits the converted dimming signal to the lighting circuit 21 (control circuit 212) via the signal connector 5.

[0052] The lighting circuit 21 controls the LED module 1 by changing the target value of the DC current supplied from the control circuit 212 to the LED module 1 in response to a dimming signal received from the wireless communication unit C1, thereby causing the LED module 1 to blink (switch on and off) and dim. If the LED module 1 has multiple types of LEDs with different light colors, the lighting circuit 21 can also adjust the color of the light emitted from the LED module 1 (illumination light) by changing the target value of the DC current supplied to each color LED.

[0053] Case 33 is formed in a box shape with one side open, using a synthetic resin such as polycarbonate resin (see Figures 4-6). However, part or all of case 33 may be made of metal. Case 33 has five walls 330. The first wall 330A is formed in a quadrangular shape in plan view and faces the opening. The second wall 330B, third wall 330C, fourth wall 330D, and fifth wall 330E each protrude in the same direction from the four sides of the first wall 330A, forming a rectangular tube. The second wall 330B and the third wall 330C face each other, and the fourth wall 330D and the fifth wall 330E face each other.

[0054] Case 33 has a support portion 335 that supports at least a part of the first region S1 of the circuit board 32 within the case 33. The support portion 335 is composed of a pair of protruding walls that rise from the inner surface of the fifth wall 330E toward the fourth wall 330D (see Figures 5 and 6). The pair of protruding walls are formed in a quadrangular plate shape. The pair of protruding walls face each other in parallel with a gap that is not less than the thickness of the circuit board 32 (see Figure 5).

[0055] However, the support portion 335 supports the circuit board 32 by sandwiching at least a portion of the first region S1 between the pair of protruding walls. In other words, the circuit board 32 supported by the support portion 335 is housed in the case 33 in an upright position relative to the fifth wall 330E. To put it another way, the circuit board 32 is housed in the case 33 in a position where the surface on which the antenna portion 31 is formed is tilted at an angle of approximately 90 degrees with respect to the second surface 40B of the mounting member 4. However, the tilt angle of the circuit board 32 with respect to the second surface 40B of the mounting member 4 is not limited to 90 degrees.

[0056] Furthermore, there is a gap between the end face of the circuit board 32 supported by the support portion 335 and the inner surface of the fourth wall 330D that is sufficiently smaller than the height of the support portion 335 (the distance from the inner surface of the fifth wall 330E to the tip of the protruding wall) (see Figures 5 and 6). In other words, the height dimension of the support portion 335 is greater than the distance between the circuit board 32 and the case 33 (the fourth wall 330D) in the height direction of the case 33. Therefore, even if the circuit board 32 moves in a direction that approaches the fourth wall 330D, there is no risk of it coming off the support portion 335. In addition, since the support portion 335 supports the circuit board 32 by sandwiching it from the thickness direction, damage to the circuit board 32 caused by the support portion 335 can be reduced.

[0057] Case 33 also has three connecting male parts 331, 332, and 333 (see Figures 4 and 5). The first connecting male part 331 has a rectangular plate-shaped support piece 3310 that protrudes from the open end of the second wall 330B of case 33, and a triangular prism-shaped projection 3311 provided at the tip of the support piece 3310. The second connecting male part 332 has a flexible piece provided at the open end of the fourth wall 330D of case 33, and a triangular prism-shaped projection 3321 that protrudes upward from the upper rear end surface of the flexible piece. The third connecting male part 333 has a rectangular plate-shaped support piece 3330 that protrudes from the third wall 330C of case 33, and a hemispherical projection 3331 that protrudes outward from the side surface of the support piece 3330.

[0058] In contrast, the power supply case 20 has three female coupling parts 209A and 209B (only two are shown in the illustration) (see Figure 4). The first female coupling part 209A is composed of the peripheral portion of a through hole that penetrates one of the second side walls 202 in the thickness direction. The second female coupling part 209B is composed of the peripheral portion of a through hole that penetrates the bottom wall 200. The third female coupling part is composed of the peripheral portion of a circular through hole that penetrates the other second side wall 202.

[0059] The projection 3311 of the first male connector 331 is inserted into the through-hole of the first female connector 209A and hooked onto the peripheral edge of the through-hole. The projection 3321 of the second male connector 332 is inserted into the through-hole of the second female connector 209B and hooked onto the peripheral edge of the through-hole. The third male connector 333 is inserted into the through-hole of the third female connector and hooked onto the peripheral edge of the through-hole. As a result, the case 33 of the wireless communication unit C1 is attached to the power supply case 20 of the power supply unit 2 (see Figure 4). At this time, the opening of the case 33 is closed by the power supply case 20.

[0060] However, the coupling structure of the power supply case 20 and case 33 described above is just one example, and other coupling structures can also be used.

[0061] (2-3) Installation of lighting fixtures Lighting fixture B1 is installed on the ceiling of the room using the following procedure.

[0062] First, the power wires drawn from the ceiling are routed through the power hole 901 of the fixture body 9 into the housing 90, and then the fixture body 9 is attached to the suspension bolts provided in the ceiling. Then, the power wires routed from the power hole 901 are electrically connected to the terminal block 902.

[0063] Next, after the power connector 904 of the power cable 903 is plugged into the power terminal section 22 of the power unit 2, the light source unit A1 is attached to the fixture body 9 so that the power unit 2 is housed in the housing section 90. Note that the mounting structure of the light source unit A1 to the fixture body 9 is conventionally known, so a detailed explanation and illustration are omitted.

[0064] The lighting fixture B1 is installed on the ceiling using the above procedure.

[0065] (2-4) Operation of lighting fixtures The power lines connected to the terminal block 902 of the fixture body 9 are switched on and off by a switch installed on the wall of the room (hereinafter referred to as the wall switch). In other words, the lighting fixture B1 (light source unit A1) is switched alternately between the on state and the off state by operating the wall switch.

[0066] Furthermore, when the lighting fixture B1 (light source unit A1) is powered via a wall switch, it can be remotely controlled for flashing and dimming (or dimming and color adjustment) by a wireless signal transmitted from a remote controller (not shown, hereinafter referred to as "remote control").

[0067] The remote control, for example, accepts user input and generates control information corresponding to the received input. Furthermore, the remote control transmits a wireless signal containing the generated control information. The control information generated by the remote control includes instructions for switching the lighting fixture B1 (light source unit A1) on and off, and instructions for the dimming level.

[0068] The wireless signal transmitted from the remote control is received by the wireless communication unit C1 of the light source unit A1. The wireless communication unit C1 converts the control information contained in the wireless signal into a dimming signal and transmits the converted dimming signal to the lighting circuit 21 (control circuit 212) via the signal connector 5. The dimming signal corresponds to any value from 0% to 100%, with the rated light output of the light source unit A1 being 100%. However, when the control information is an instruction to switch from off to on, the dimming signal is set to 100%, and when the control information is an instruction to switch from on to off, the dimming signal is set to 0%.

[0069] The lighting circuit 21 controls the LED module 1 by changing the target value of the DC current supplied to the LED module 1 by the control circuit 212 in response to a dimming signal received from the wireless communication unit C1, thereby causing the LED module 1 to blink (switch between on and off) and dim (or change color). When the dimming signal is set to 0%, the control circuit 212 turns off the LED module 1 by stopping the power conversion circuit 210 and the constant current circuit 211.

[0070] Here, the sensitivity of the antenna unit 31 when receiving and transmitting radio waves is highest in the direction perpendicular to the surface (mounting surface) of the circuit board 32 on which the antenna unit 31 is formed (normal direction). In other words, since the wireless communication unit C1 is installed so that the normal direction of the circuit board 32 is approximately parallel to the ceiling surface, the range in which wireless signals transmitted from the remote control can be received can be extended in the direction parallel to the ceiling surface (horizontal direction). As a result, the light source unit A1 and the lighting fixture B1 can be remotely controlled (flashing, dimming, and color adjustment) to expand the range of remote control operation and improve usability.

[0071] Furthermore, the source of the wireless signal received by the wireless communication unit C1 is not limited to the remote control mentioned above. For example, it could be any device capable of transmitting wireless signals using electromagnetic waves such as radio waves, such as a wall switch with wireless communication capabilities, a smartphone, or a tablet PC. Alternatively, the wireless communication unit C1 can receive wireless signals relayed by a relay device that relays wireless signals transmitted from a remote control, or by a wireless communication unit with relay functionality installed in another lighting fixture. In other words, the light source unit A1 and the lighting fixture B1 can expand the range of wireless communication and improve usability.

[0072] By the way, since the mounting member 4 of the light source unit A1 is made of a metal material, the wireless signal (radio wave) that passes electromagnetically through the mounting member 4 and reaches the antenna unit 31 is attenuated. In particular, it is known that the attenuation of the wireless signal (radio wave) increases when the distance from the pattern-forming surface of the antenna unit 31 (the surface of the circuit board 32) to the mounting member 4 (side plate 41) is short. Therefore, it is desirable that the above distance be, for example, 4 mm or more. However, the lower limit of the above distance will vary depending on the magnitude of the radio wave output of the antenna unit 31, the frequency band of the radio wave, the type of material of the mounting member 4, the thickness of the mounting member 4, etc.

[0073] Furthermore, as shown in Figure 6, the distance D1 from the circuit board 32 of the antenna unit 31 to the mounting member 4 (bottom plate 40) is preferably 1 mm or more in order to suppress attenuation of the wireless signal (radio wave). However, the lower limit of the distance D1 varies depending on the magnitude of the radio wave output of the antenna unit 31, the frequency band of the radio wave, the type of material of the mounting member 4, the thickness of the mounting member 4, etc.

[0074] (2-5) Advantages of the Embodiment The electromagnetic waves emitted from the antenna section 31 and the electromagnetic waves received by the antenna section 31 from the surrounding space are both strongest in the thickness direction of the circuit board 32. Therefore, by housing the circuit board 32 in the case 33 with the surface on which the antenna section 31 is formed tilted relative to the second surface 40B of the mounting member 4 (the upper surface of the bottom plate 40), attenuation of electromagnetic waves by the metal mounting member 4 can be suppressed. Furthermore, the wireless communication unit C1 is positioned on the second surface 40B side of the mounting member 4 such that the thickness direction of the circuit board 32 intersects with the longitudinal direction of the mounting member 4. Therefore, attenuation of electromagnetic waves (radio waves emitted from the antenna section 31 and radio waves received by the antenna section 31 from the surrounding space) by the metal power supply case 20 can be suppressed.

[0075] As a result, the power supply unit E1 can achieve improved wireless performance compared to when the circuit board 32 is housed in the case 33 with the surface on which the antenna section 31 is formed parallel to the second surface 40B of the mounting member 4. Furthermore, when the lighting fixture B1 is installed on the ceiling, the circuit board 32 is housed in the case 33 in an upright position (tilted at approximately 90 degrees) relative to the ceiling surface. Therefore, the lighting fixture B1 (power supply unit E1 and light source unit A1) can achieve further improvement in wireless performance by horizontally expanding the range in which the antenna section 31 can receive electromagnetic waves (radio waves) of wireless signals.

[0076] Furthermore, since the case 33 of the wireless communication unit C1 is coupled to the power supply case 20 of the power supply unit 2, the power supply device E1 can shorten the wiring for electrically connecting the power supply unit 2 and the wireless communication unit C1. As a result, the power supply device E1 according to this embodiment can reduce noise leaking from the wiring and improve the workability of the wiring connection work. In addition, since the wiring for electrically connecting the power supply unit 2 and the wireless communication unit C1 can be housed inside the power supply case 20 and case 33, it is possible to prevent the wiring from being pinched between the mounting member 4 and the fixture body 9 when attaching the light source unit A1 to the fixture body 9.

[0077] Incidentally, the case 33 of the wireless communication unit C1 is coupled to one end of the long, box-shaped power supply case 20 in the longitudinal direction. Therefore, the power supply unit E1 is miniaturized in the short direction of the power supply case 20 and can be easily combined with lighting devices (light source unit A1) that are attached to the narrow fixture body 9. Furthermore, since the power supply unit E1 houses the circuit board 32 in the case 33 so that its thickness direction matches the short direction of the power supply case 20, further miniaturization of the power supply case 20 in the short direction is possible.

[0078] Furthermore, since the circuit board 32 is positioned in the center of the width direction of the case 33 along the shorter side of the power supply case 20 (see Figure 5), the distance (horizontal distance) between the pair of side plates 41 of the mounting member 4 and the antenna section 31 becomes almost uniform. As a result, the power supply unit E1 can further improve wireless performance by suppressing radio wave attenuation caused by the pair of side plates 41.

[0079] Incidentally, a holding portion 334 is provided on the outer surface of the fifth wall 330E of case 33 (see Figure 6). The holding portion 334 is formed in an L shape and protrudes from the outer surface of the fifth wall 330E (the surface facing the mounting member 4). The holding portion 334 can hold the electric wire L1 (for example, an electric wire for supplying power from the power supply unit 2 to the LED module 1) by sandwiching it between itself and the fifth wall 330E. Thus, since the wireless communication unit C1 holds the electric wire L1 with the holding portion 334 provided on case 33, the workability of the assembly work of the light source unit A1 can be improved. Note that the holding portion 334 may also be, for example, a recess formed at the boundary between the second wall 330B or the third wall 330C and the fourth wall 330D (see Figure 7).

[0080] (3) Variant Next, several modifications of the power supply unit E1 and light source unit A1 according to the embodiment will be described. However, the basic configuration of each modification described below is common to the power supply unit E1 and light source unit A1 according to the embodiment. Therefore, in the description of each modification, components common to the power supply unit E1 and light source unit A1 according to the embodiment will be denoted by the same reference numerals and will be omitted from the illustration and description as appropriate.

[0081] (3-1) Variation 1 The power supply unit E1 of the modified example 1 is characterized in that the circuit board 32 is located at one end of the case 33 in the width direction along the short side of the power supply case 20 (see Figure 8).

[0082] In the modified example 1, the support portion 335 that supports the circuit board 32 is composed of a single protruding wall that rises from the inner surface of the fifth wall 330E parallel to the second wall 330B (or third wall 330C) of the case 33. The protruding wall (support portion 335) faces the second wall 330B at a distance not less than the thickness of the circuit board 32. The support portion 335 supports the circuit board 32 by sandwiching at least a portion of the first region S1 between the protruding wall and the wall of the case 33 (second wall 330B).

[0083] The case 33 of the wireless communication unit C1 faces the substrate 11 of the LED module 1 across the mounting member 4, and a conductor is formed on the surface (bottom surface) of the substrate 11 to electrically connect multiple LEDs 10.

[0084] However, in the modified example E1, the antenna unit 31 (circuit board 32) is positioned so as not to overlap in the vertical direction (thickness direction of the bottom plate 40 of the mounting member 4) with the region S3 on the surface of the substrate 11 where wiring conductors are formed. As a result, the power supply unit E1 in the modified example E1 can suppress the attenuation of radio waves caused by the conductors of the LED module 1 and further improve wireless performance. Note that "one end in the width direction of the case 33" includes the range from the center of the width direction of the case 33 to the end of the width direction of the case 33 that is farther from the power supply case 20, and does not overlap with the region S3 on the substrate 11 where wiring conductors are formed in the thickness direction of the bottom plate 40.

[0085] (3-2) Modification example 2 The power supply unit E1 of the modified example 2 is characterized by the structure of the case 33 of the wireless communication unit C1.

[0086] In this embodiment, the case 33 has an opening on the side facing the power supply case 20 when it is attached to the power supply case 20. In other words, the power supply device E1 in this embodiment can prevent foreign matter from entering the case 33 while improving the workability when housing the circuit board 32 inside the case 33 by covering the opening of the case 33 with the power supply case 20.

[0087] In contrast, the power supply unit E1 of the modified example 2 has, for example, an open surface on the case 33 facing the mounting member 4, and a wall on the surface of the case 33 facing the power supply case 20 (see Figure 9A). Therefore, when the power supply case 20 with the case 33 attached is attached to the mounting member 4, the open surface of the case 33 is closed by the mounting member 4. As a result, the power supply unit E1 of the modified example 2, like the power supply unit E1 of the embodiment, can prevent foreign matter from entering the case 33 while improving the workability when housing the circuit board 32 inside the case 33.

[0088] In addition, in the power supply unit E1 of the modified example 2, two sides of the case 33 (the side facing the power supply case 20 and the side facing the mounting member 4) may be open (see Figure 9B). Furthermore, the side of the power supply case 20 facing the case 33 may also be open (see Figure 9C). In the latter case, the case 33 may be attached to the power supply case 20 such that a part of the case 33 fits inside the power supply case 20.

[0089] (3-3) Modification example 3 The power supply unit E1 of the modified example 3 is characterized in that the case 33 of the wireless communication unit C1 is coupled to one end of the power supply case 20 in the short direction (see Figure 10).

[0090] In the modified example 3, the case 33 of the wireless communication unit C1 is formed in a rectangular parallelepiped shape and houses the circuit board 32 inside. However, a hole for wiring is provided on the bottom surface of the case 33 (the surface facing the mounting member 4). The plug 51 mounted on the circuit board 32 and the connector 213 mounted on the power supply board 25 are electrically connected via a cable 52 inserted through the hole provided on the bottom surface of the case 33 (see Figures 10A and 10B).

[0091] The power supply unit E1 of the modified example has the advantage of shortening the dimensions of the power supply unit E1 along the longitudinal direction of the power supply case 20, since the case 33 of the wireless communication unit C1 is arranged in the short direction of the power supply case 20.

[0092] (3-4) Modification 4 The power supply unit E1 of the modified example 4 is characterized in that the power supply unit 2 and the wireless communication unit C1 are mounted on the mounting member 4 with a distance between them along the longitudinal direction of the mounting member 4 (see Figure 11A).

[0093] In Modification 4, the wireless communication unit C1 is attached to the mounting member 4 with the opening surface of the case 33 facing the bottom plate 40 of the mounting member 4 (see Figure 11B). Alternatively, the wireless communication unit C1 in Modification 4 may be attached to the mounting member 4 with the opening surface of the case 33 facing the side plate 41 of the mounting member 4 (see Figure 11C).

[0094] Alternatively, the case 33 may be attached to the mounting member 4 by a separate mounting bracket 27 (see Figure 11D). The mounting bracket 27 is formed by bending a rectangular metal plate into an L-shape. The mounting bracket 27 is fixed to the bottom plate 40 of the mounting member 4 by welding, screwing, riveting, or other appropriate methods. The case 33 is then attached to the mounting bracket 27 by adhesive or screwing, or other appropriate methods, so as to close the opening surface with the mounting bracket 27 (see Figure 11D). The mounting bracket 27 may also be formed in a U-shape (see Figure 11E).

[0095] However, in the modified example 4, the power supply unit E1 is mounted on the mounting member 4 with the power supply unit 2 and the wireless communication unit C1 spaced apart, which has the advantage of improving the flexibility of the layout of the power supply unit 2 and the wireless communication unit C1.

[0096] (3-5) Modification 5 The power supply unit E1 of the modified example 5 is characterized in that the power supply unit 2 and the wireless communication unit C1 are mounted on the mounting member 4 with a distance between them along the shorter side of the mounting member 4 (see Figure 12).

[0097] In the modified example 5, the wireless communication unit C1 is housed in the case 33 such that the width direction of the circuit board 32 intersects the longitudinal direction of the power supply case 20 at an angle of approximately 90 degrees.

[0098] However, the power supply unit E1 of the modified example 5 has the advantage of improving the flexibility of the layout of the power supply unit 2 and the wireless communication unit C1, similar to the modified example 4.

[0099] (3-6) Modification 6 The power supply unit E1 of the modified example 6 is characterized by the mounting structure of the case 33 of the wireless communication unit C1 to the mounting member 4.

[0100] In the power supply unit E1 of the modified example 6, the mounting member 4 has a hole 46 through which a part of the case 33 is inserted. The hole 46 penetrates the bottom plate 40 of the mounting member 4 in an area where the LED module 1 is not present (see Figure 13B).

[0101] The circuit board 32 is formed in a T-shape when viewed from the thickness direction (see Figure 13A). The case 33 has a housing projection 34 that protrudes from the fifth wall 330E and accommodates a portion of the circuit board 32. The internal space of the housing projection 34 penetrates the fifth wall 330E and connects to the internal space of the case 33.

[0102] A portion of the circuit board 32 housed in the housing projection 34 is the T-shaped leg portion, which includes the first region S1 where the antenna portion 31 is formed (see Figure 13A). The circuit board 32 is supported by the case 33 when the T-shaped leg portion is housed in the housing projection 34.

[0103] The case 33 is attached to the bottom plate 40 of the mounting member 4 with the housing projection 34 inserted through the hole 46 (see Figures 13A and 13B). In other words, the antenna portion 31 of the wireless communication unit C1 protrudes downward from the bottom plate 40 through the hole 46. The housing projection 34 that protrudes downward from the bottom plate 40 may be housed inside the cover 7. However, as shown in Figure 13C, the housing projection 34 that protrudes downward from the bottom plate 40 may be exposed outside the cover 7.

[0104] However, in the modified example 6, the power supply unit E1 has the antenna section 31 inserted through the hole 46 of the mounting member 4 and exposed below the mounting member 4, so that electromagnetic waves emitted from or received by the antenna section 31 are less likely to be attenuated by the metal mounting member 4. As a result, the power supply unit E1 of the modified example 6 can improve the sensitivity (wireless performance) of electromagnetic wave transmission or reception in the wireless communication unit C1.

[0105] (3-7) Modification 7 The power supply unit E1 of the modified example 7 is characterized by having a hole 46 that penetrates from the second surface 40B to the first surface 40A at a position opposite the antenna portion 31 of the mounting member 4 (see Figure 14).

[0106] The hole 46 is formed in a rectangular shape (see Figures 14A-14C). The rectangular hole 46 is formed to be larger than the thickness and width of the circuit board 32 (see Figure 14A). However, the rectangular hole 46 may be formed to be larger than the thickness of the circuit board 32 and smaller than its width (see Figure 14B). Alternatively, the rectangular hole 46 may be formed so that its longitudinal direction is parallel to the thickness direction of the circuit board 32 (see Figure 14C).

[0107] Furthermore, the hole 46 may be formed in a circular shape (see Figures 14D and 14E). There may be one circular hole 46 (see Figure 14D) or multiple circular holes 46 (see Figure 14E). Preferably, the diameter of the circular hole 46 is larger than the thickness of the circuit board 32 and smaller than the width of the circuit board 32. Note that the hole 46 may be blocked by the substrate 11 of the LED module 1 on the first surface 40A of the mounting member 4. If the substrate 11 is made of an electrically insulating material such as synthetic resin, radio waves (electromagnetic waves) passing through the hole 46 can pass through the substrate 11 with almost no attenuation. By blocking the hole 46 with the substrate 11, it is possible to prevent foreign matter from entering the lower side of the mounting member 4 through the hole 46.

[0108] However, in the modified example 7, the power supply unit E1 has a hole 46 that penetrates the mounting member 4, positioned opposite the antenna portion 31 of the mounting member 4. As a result, electromagnetic wave attenuation is suppressed by passing through the hole 46. Consequently, the power supply unit E1 in the modified example 7 can improve the sensitivity (wireless performance) of electromagnetic wave transmission or reception in the wireless communication unit C1.

[0109] (3-8) Variation 8 The power supply unit E1 of the modified example 8 is characterized by having a hole 46 that penetrates from the second surface 40B to the first surface 40A at a position that does not face the antenna portion 31 of the mounting member 4 (see Figure 15).

[0110] The hole 46 may be formed in a rectangular shape (see Figure 15A) or a circular shape (see Figure 15B). Also, there may be one hole 46 (see Figure 15A) or multiple holes 46 (see Figure 15B). The hole 46 may be covered by the substrate 11 of the LED module 1 on the first surface 40A of the mounting member 4. If the substrate 11 is made of an electrically insulating material such as synthetic resin, radio waves (electromagnetic waves) passing through the hole 46 can pass through the substrate 11 with almost no attenuation. By covering the hole 46 with the substrate 11, it is possible to prevent foreign matter from entering the lower side of the mounting member 4 through the hole 46.

[0111] However, in the power supply unit E1 of Modified Example 8, electromagnetic wave attenuation is suppressed by passing through the hole 46, similar to the power supply unit E1 of Modified Example 8, so the sensitivity (wireless performance) of transmitting or receiving electromagnetic waves in the wireless communication unit C1 can be improved. However, in the power supply unit E1 of Modified Example 8, the hole 46 is provided in a position that does not face the antenna portion 31 of the mounting member 4, so the degree of improvement in wireless performance may be slightly lower compared to the power supply unit E1 of Modified Example 8.

[0112] (3-9) Modification 9 The power supply unit E1 of the modified example 9 is characterized in that the circuit components constituting the antenna section 31 and the wireless circuit section 30 are mounted on both sides of the circuit board 32 of the wireless communication unit C1 (see Figure 16).

[0113] In the modified example 9, the circuit board 32 of the wireless communication unit C1 is a double-sided printed circuit board, with multiple components 30B, including an integrated circuit 30A for wireless communication, mounted on one side (see Figures 16A and 16B), and other components mounted on the other side (see Figures 16B and 16C). The antenna section 31 is formed on both sides of the circuit board 32 (see Figures 16A and 16C). The antenna section 31 formed on both sides of the circuit board 32 is electrically connected via through-holes formed in the circuit board 32. However, the antenna section 31 formed on both sides of the circuit board 32 may be independent antennas that are not electrically connected via through-holes.

[0114] However, in the modified example 9, the power supply unit E1 can be miniaturized by using a double-sided printed circuit board 32.

[0115] (3-10) Variation 10 The power supply unit E1 (wireless communication unit C1) of the modified example 10 is characterized in that it has a restricting part 336 in the case 33 that restricts the movement of the circuit board 32 relative to the support part 335 (see Figures 17A and 17B).

[0116] The restricting portion 336 is provided on the side of one of the pair of protruding walls that make up the support portion 335, the one that faces the non-mounting surface of the circuit board 32 (the surface of the circuit board 32 on which the antenna portion 31 is not formed; hereinafter referred to as the back surface) (see Figure 17A). The restricting portion 336 is formed in a shape resembling a triangular pyramid attached to the front end of a triangular prism, and protrudes from the side of the protruding wall toward the back surface of the circuit board 32. As a result of providing the restricting portion 336, the gap between the pair of protruding walls that make up the support portion 335 is partially narrowed. Therefore, the end of the circuit board 32 is pressed between the restricting portion 336 and the other protruding wall (the protruding wall on which the restricting portion 336 is not provided), and the movement of the circuit board 32 supported by the support portion 335 is restricted by the restricting portion 336. Furthermore, because the front end of the restricting portion 336 is formed in a triangular pyramidal shape, there is an advantage in that when the end of the circuit board 32 is inserted, the tip of the circuit board 32 in the insertion direction is less likely to get caught on the tip of the restricting portion 336.

[0117] The restricting portion 336 may be provided on the side surface of the protruding wall facing the mounting surface (front surface) of the circuit board 32. In this case, it is preferable that the restricting portion 336 be formed in contact with the area in the first region S1 of the circuit board 32 where the antenna portion 31 is not formed. However, if the antenna portion 31 of the first region S1 is protected by resist, the restricting portion 336 may be formed in contact with the area in the first region S1 where the antenna portion 31 is formed.

[0118] (3-11) Variation 11 The power supply unit E1 (wireless communication unit C1) of Modified Example 11 is characterized in that the case 33 has a plurality of support parts 335, each capable of supporting a circuit board 32 (see Figures 18A and 18B). In the wireless communication unit C1 of Modified Example 11, three sets of protruding walls protrude from the inner surface of the fifth wall 330E. Each pair of protruding walls in each set constitutes one support part 335. However, the heights of the three sets of protruding walls may all be the same, or the height of at least one set of protruding walls may differ from the heights of the other sets of protruding walls.

[0119] The circuit board 32 is supported by one of the three support parts 335 selected from among them. For example, when the wireless communication unit C1 is placed between a pair of side plates 41 of the mounting member 4, it is preferable to support the circuit board 32 on the central support part 335 such that the distance between each side plate 41 and the circuit board 32 is maximized (see Figure 18A). Also, when the side plates 41 of the mounting member 4 are provided on only one side of the bottom plate 40, it is preferable to support the circuit board 32 on the support part 335 furthest from the side plate 41 (see Figure 18B).

[0120] However, in the modified example 11, the power supply unit E1 allows the position of the circuit board 32 inside the case 33 to be changed to match the shape of the mounting member 4 of the light source unit A1, thus enabling a reduction in manufacturing costs through the standardization of parts.

[0121] (3-12) Variation 12 Modification 12's power supply unit E1 (wireless communication unit C1) is characterized by having a lid that closes the opening of the case 33.

[0122] As shown in Figure 19A, a flat lid 338A is rotatably attached to the peripheral edge of the opening of the case 33. After the circuit board 32 is housed inside the case 33 from the opening, the lid 338A is rotated to a position that closes the opening of the case 33. Preferably, the lid 338A is fixed to the case 33 in the position that closes the opening of the case 33.

[0123] Alternatively, as shown in Figure 19B, a projection 3380 is provided on a flat plate-shaped lid 338B, and the lid 338B is attached to the case 33 by inserting the projection 3380 into the opening surface of the case 33. Preferably, the lid 338B is fixed to the case 33 in a state that closes the opening surface of the case 33.

[0124] However, in the modified example 12, the power supply unit E1 has its opening in the case 33 covered with lids 338A and 338B, so that foreign matter can be prevented from entering the case 33 even before it is installed in the power supply case 20.

[0125] (3-13) Variation 13 The lighting device (light source unit A1) of modified example 13 is characterized in that it has a hole 340 connecting the inside and outside of the case 33 in modified example 6 (see Figure 20).

[0126] The hole 340 is provided, for example, on the side of the housing projection 34 (see Figure 20A). Preferably, the antenna portion 31 of the first region S1 of the circuit board 32 is exposed outside the housing projection 34 through the hole 340.

[0127] Furthermore, the hole 340 may be provided on the bottom surface of the housing projection 34 (see Figure 20B). In addition, a part of the circuit board 32 on which the antenna portion 31 is formed may protrude outside the housing projection 34 through the hole 340 on the bottom surface of the housing projection 34 (see Figures 20C and 20D).

[0128] However, by allowing electromagnetic waves to pass through the hole 340 in case 33, attenuation of electromagnetic waves can be suppressed compared to when they pass through the wall other than the hole 340. As a result, the light source unit A1 of modified example 13 can improve the sensitivity of electromagnetic wave transmission or reception by the wireless communication unit C1. The hole 340 may be covered with a member made of a material that allows electromagnetic waves to pass through (for example, synthetic resin). This prevents foreign matter from entering the case 33.

[0129] (4) Another embodiment In the lighting device (light source unit A1) and lighting fixture B1 according to the above-described embodiment, the power supply unit E1 is attached to the mounting member 4.

[0130] In contrast, in the lighting device (light source unit A2) and lighting fixture B2 according to another embodiment, the power supply unit E1 is attached to the fixture body 9B, as shown in Figure 21.

[0131] In the lighting device (light source unit A2) and lighting fixture B2 according to another embodiment, the wireless communication unit C1 can be miniaturized in the same way as in the lighting device (light source unit A1) and lighting fixture B1 according to the above-described embodiment.

[0132] (5) Summary A power supply device (E1) according to a first aspect of this disclosure comprises a power supply unit (2), a wireless communication unit (C1), and a mounting member (4). The power supply unit (2) converts input power into power and outputs it to a load (LED module 1). The wireless communication unit (C1) has an antenna section (31) and a wireless circuit section (30). The antenna section (31) emits electromagnetic waves into space or receives electromagnetic waves from space. The wireless circuit section (30) transmits or receives at least one of wireless signals using electromagnetic waves as a medium via the antenna section (31). The mounting member (4) is formed in an elongated shape and the power supply unit (2) is attached to it. The power supply unit (2) is attached to the second side (40B) of the mounting member (4) opposite to the first side (40A) to which the load is attached. The power supply unit (2) includes a power supply board (25) on which a printed circuit for power conversion is formed, and a power supply case (20) that houses the power supply board (25) and is attached to the mounting member (4). The wireless communication unit (C1) includes a circuit board (32) on which an antenna section (31) and a wireless circuit section (30) are formed, and a case (33) that houses the circuit board (32) in a position inclined with respect to the second surface (40B) of the mounting member (4) with the surface on which the antenna section (31) is formed. The wireless communication unit (C1) is positioned on the second surface (40B) side of the mounting member (4) such that the thickness direction of the circuit board (32) intersects with the longitudinal direction of the mounting member (4).

[0133] The power supply device (E1) according to the first embodiment can suppress the attenuation of electromagnetic waves by the mounting member (4). As a result, the power supply device (E1) according to the first embodiment can improve wireless performance compared to the case in which the circuit board (32) is housed in the case (33) in a position in which the surface on which the antenna portion (31) is formed is parallel to the second surface (40B) of the mounting member (4).

[0134] A power supply device (E1) according to a second aspect of the present disclosure can be realized by combining it with the first aspect. In the power supply device (E1) according to the second aspect, the mounting member (4) preferably has a hole (46) that penetrates from the second surface (40B) to the first surface (40A).

[0135] In the power supply device (E1) according to the second embodiment, electromagnetic wave attenuation is suppressed by passing through the hole (46), thus enabling further improvement of wireless performance.

[0136] A power supply device (E1) according to a third aspect of the present disclosure can be realized by combining it with the second aspect. In the power supply device (E1) according to the third aspect, it is preferable that a part of the case (33) that houses the portion of the circuit board (32) on which the antenna portion (31) is formed (first region S1) (housing projection 34) protrudes from the first surface (40A) of the mounting member (4) through a hole (46).

[0137] In the third embodiment, the power supply device (E1) makes it less likely for electromagnetic waves emitted from the antenna unit (31) or received by the antenna unit (31) to be attenuated by the mounting member (4), thereby improving the sensitivity (wireless performance) of electromagnetic wave transmission or reception in the wireless communication unit (C1).

[0138] A power supply device (E1) according to a fourth aspect of this disclosure can be realized by combination with any of the first to third aspects. In the power supply device (E1) according to the fourth aspect, the power supply case (20) is preferably formed in the shape of a long box. The case (33) is preferably coupled to one end of the power supply case (20) in the longitudinal direction.

[0139] The power supply device (E1) according to the fourth embodiment can be made smaller in the short-side direction of the power supply case (20).

[0140] A power supply device (E1) according to a fifth aspect of this disclosure can be realized by combination with any of the first to third aspects. In the power supply device (E1) according to the fifth aspect, the power supply case (20) is preferably formed in the shape of an elongated box. The case (33) is preferably coupled to one end of the power supply case (20) in the short direction.

[0141] The power supply unit (E1) according to the fifth embodiment can shorten the dimensions of the power supply case (20) along the longitudinal direction.

[0142] A power supply device (E1) according to a sixth aspect of the present disclosure can be realized by combination with any of the first to third aspects. In the power supply device (E1) according to the sixth aspect, the power supply case (20) is preferably formed in the shape of a long box. The case (33) is preferably spaced apart from the power supply case (20) and facing one end of the power supply case (20) in the longitudinal direction.

[0143] The power supply device (E1) according to the sixth embodiment can be miniaturized in the short-side direction of the power supply case (20).

[0144] A power supply device (E1) according to a seventh aspect of this disclosure can be realized by combination with any of the first to third aspects. In the power supply device (E1) according to the seventh aspect, the power supply case (20) is preferably formed in the shape of an elongated box. The case (33) is preferably spaced apart from the power supply case (20) and facing one end of the power supply case (20) in the shorter direction.

[0145] The power supply unit (E1) according to the seventh embodiment can shorten the dimensions of the power supply case (20) along the longitudinal direction. Cut.

[0146] An illumination device (light source unit A1) according to the eighth aspect of this disclosure comprises a power supply device (E1) according to any of the first to seventh aspects, and a light source (LED module 1) which is the load of the power supply device (E1). The light source is mounted on the first surface of the mounting member (4). The power supply device (E1) is mounted on the second surface (40B) of the mounting member (4) opposite to the first surface.

[0147] The lighting device according to the eighth embodiment can improve wireless performance.

[0148] A lighting device (light source unit A1) according to the ninth aspect of this disclosure comprises a power supply device (E1) according to the third aspect, a light source (LED module 1) which is a load for the power supply device (E1), and a light-transmitting cover (7) which is attached to a mounting member (4) so ​​as to cover the light source. The light source is attached to the first surface (40A) of the mounting member (4). The power supply device (E1) is attached to the second surface (40B) of the mounting member (4) opposite to the first surface. A part of the case (33) (housing projection 34) is exposed to the outside of the cover (7).

[0149] The lighting device according to the ninth embodiment can achieve further improvements in wireless performance.

[0150] A lighting fixture (B1) according to the tenth aspect of this disclosure comprises a lighting device according to any of the first to eighth aspects and a fixture body (9) that supports the lighting device.

[0151] The lighting fixture (B1) according to the tenth embodiment can improve wireless performance.

[0152] A lighting fixture (B2) according to the eleventh aspect of this disclosure comprises a lighting device (light source unit A2) and a fixture body (9B) that supports the lighting device. The lighting device comprises a power supply unit (E1) and a light source (LED module 1) attached to a mounting member (4) and powered by the power supply unit (E1). The power supply unit (E1) is supported by the fixture body (9B).

[0153] The lighting fixture (B2) according to the 11th embodiment can improve wireless performance. [Explanation of Symbols]

[0154] A1; A2 Light source unit (lighting device) B1;B2 Lighting equipment C1 Wireless Communication Unit E1 power supply 1 LED module (light source) 2 Power supply units 4. Mounting components 9. Main body of the device 20 Power Supply Cases 25 Power supply board 30 Radio circuit section 31 Antenna section 32 Circuit boards 33 cases 34. Retaining protrusion 40A, Page 1 40B 2nd side 46 holes

Claims

1. A power supply unit that converts input power into power and outputs it to the load, A wireless communication unit having an antenna section that emits electromagnetic waves into space or receives electromagnetic waves from space, and a wireless circuit section that transmits or receives at least one of wireless signals using the electromagnetic waves as a medium via the antenna section, A mounting member formed in an elongated shape to which the power supply unit is attached, Equipped with, The mounting member has the power supply unit attached to the second side opposite to the first side to which the load is attached. The aforementioned power supply unit is A power supply board on which the printed circuit for performing the power conversion is formed, A power supply case that houses the power supply board and is attached to the mounting member, It has, The aforementioned wireless communication unit is A circuit board on which the antenna section and the wireless circuit section are formed, A case for housing the circuit board in a position in which the surface on which the antenna portion is formed is tilted with respect to the second surface of the mounting member, It has, The wireless communication unit is positioned on the second surface side of the mounting member such that the thickness direction of the circuit board intersects with the longitudinal direction of the mounting member. The power supply case is formed in the shape of a long box, The case is connected to one end of the power supply case in the longitudinal direction. power supply.

2. A power supply unit that converts input power into power and outputs it to a load, A wireless communication unit having an antenna section that emits electromagnetic waves into space or receives electromagnetic waves from space, and a wireless circuit section that transmits or receives at least one of wireless signals using the electromagnetic waves as a medium via the antenna section, A mounting member formed in an elongated shape to which the power supply unit is attached, Equipped with, The mounting member has the power supply unit attached to the second side opposite to the first side to which the load is attached. The aforementioned power supply unit is A power supply board on which the printed circuit for performing the power conversion is formed, A power supply case that houses the power supply board and is attached to the mounting member, It has, The aforementioned wireless communication unit is A circuit board on which the antenna section and the wireless circuit section are formed, A case for housing the circuit board in a position in which the surface on which the antenna portion is formed is tilted with respect to the second surface of the mounting member, It has, The wireless communication unit is positioned on the second surface side of the mounting member such that the thickness direction of the circuit board intersects with the longitudinal direction of the mounting member. The power supply case is formed in the shape of a long box, The aforementioned case is spaced apart from the power supply case and faces one end of the power supply case in the longitudinal direction. power supply.

3. The mounting member has a hole that penetrates from the first surface to the second surface, The power supply device according to claim 1 or 2.

4. A part of the case, the part in which the portion of the circuit board on which the antenna portion is formed is housed, protrudes from the first surface of the mounting member through the hole. The power supply device according to claim 3.

5. A power supply device of claim 1 or 2, The light source that becomes the load of the power supply device, Equipped with, The light source is attached to the first surface of the mounting member. The power supply unit is mounted on the second side of the mounting member opposite to the first side. Lighting device.

6. The power supply device of Claim 4, The light source that becomes the load of the power supply device, A cover that is translucent and attached to the mounting member so as to cover the light source, Equipped with, The light source is attached to the first surface of the mounting member. The power supply unit is attached to the second side of the mounting member opposite to the first side. The aforementioned part of the case is exposed to the outside of the cover. Lighting device.

7. The lighting device of Claim 5, The fixture body that supports the aforementioned lighting device, Equipped with, Lighting fixtures.

8. A lighting device and The fixture body that supports the aforementioned lighting device, Equipped with, The aforementioned lighting device is A power supply device according to claim 1 or 2, A light source attached to the mounting member and powered by the power supply device, Equipped with, The power supply unit is supported by the main body of the appliance. Lighting fixtures.

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