Illumination device

Abstract

To provide an illumination device that allows a cable to be internally installed without loads imposed thereon.SOLUTION: The illumination device comprises: a light source unit that includes a light source; a support arm that rotatably supports the light source unit; a power supply part that supplies power to the light source unit; and a wiring part, wherein the wiring part includes a light source cable that electrically connects the light source unit and the power supply part, the support arm has an inner space where the light source cable can be stored, and the light source cable is provided with an extending part that extends and contracts in accordance with the rotation of the light source unit.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a lighting device. [Background technology]

[0002] Conventionally, there is a variable lighting device having a base part, a lamp having a light source, an arm, a first drive part which rotates the lamp and the arm relative to the base part, a second drive part which oscillates the lamp relative to the base part and the arm, a rotation support part which supports the lamp so that the lamp can rotate relative to the arm, and a cable made by covering the electric wires in the fixture with a protective tube (for example, Patent Document 1). The cable is wired so that it passes from inside the base part through an insertion hole formed in a first output shaft of the first drive part, goes further out into the external space, and enters the inside of the lamp. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-174620 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned conventional lighting device, the cable is exposed to the outside space, which impairs the aesthetic appearance of the lighting device and makes it less stylish. On the other hand, if the cable is simply stored inside the lighting device, there is a problem that the cable may interfere with the rotating part of the lighting device or the cable may be subjected to a load during rotation, which may cause the cable to break.

[0005] The present invention has been made in consideration of the above-mentioned problems, and has an object to provide a lighting device in which the cable can be installed internally without placing a load on the cable. [Means for solving the problem]

[0006] The lighting device of the present invention comprises a light source unit including a light source, a support arm that rotatably supports the light source unit, a power supply unit that supplies power to the light source unit, and a wiring unit, the wiring unit including a light source cable that electrically connects the light source unit and the power supply unit, the support arm has an internal space capable of storing the light source cable, and the light source cable is provided with an extension / contraction unit that extends and contracts in response to the rotation of the light source unit.

[0007] The lighting device of the present invention includes a base portion that stores the power supply portion and can be fixed to an installation surface, and the support arm includes a horizontal rotation portion that is rotatably connected to the base portion about an axis perpendicular to the installation surface, and a first support arm portion extending from the horizontal rotation portion, and the first support arm portion is configured to support the light source unit rotatably about an axis parallel to the installation surface, and the extension portion may be provided around a rotation center in the rotation direction of the light source unit.

[0008] In the lighting device according to the present invention, the light source unit may include a vertical rotation axis for connecting the light source unit and the first support arm portion, and the extension portion may be formed by winding the light source cable around the vertical rotation axis.

[0009] In the lighting device of the present invention, the support arm includes a horizontal rotation portion having a horizontal rotation axis, a first support arm portion extending from one circumferential end of the horizontal rotation portion, and a second support arm portion extending from the other circumferential end of the horizontal rotation portion and provided opposite the first support arm portion, and is configured to rotatably support the light source unit between the first support arm portion and the second support arm portion, and the light source cable may be disposed in an internal space of the horizontal rotation portion and the first support arm portion.

[0010] In the lighting device of the present invention, the first support arm portion has a first extension portion extending circumferentially from one end portion on the circumference of the horizontal rotation portion in the circumferential direction of the horizontal rotation portion, and a second extension portion extending from the first extension portion in a direction intersecting the extension direction of the first extension portion, and the first extension portion and the second extension portion may have an internal space capable of storing the light source cable.

[0011] The lighting device of the present invention is provided with a vertical rotation mechanism that rotates the light source unit around an axis parallel to the installation surface, the wiring section includes a vertical rotation cable that electrically connects the vertical rotation mechanism and the power supply section, the vertical rotation mechanism is attached to the first support arm section, and the vertical rotation cable may be arranged in an internal space of the horizontal rotation section and the first support arm section.

[0012] In the lighting device according to the present invention, the internal space of the first support arm portion may be provided with a light source path for arranging the light source cable, and a vertical rotation path for arranging the vertical rotation cable.

[0013] In the lighting device of the present invention, the light source unit includes a housing in which the light source is mounted, the housing having a cylindrical main body portion and a first support arm connection portion provided on a side of the main body portion, and the extension portion may be provided in an internal space of the first support arm connection portion.

[0014] The first support arm connection portion has a peripheral wall portion extending radially from the main body portion, and the extension portion is formed by the light source cable winding around the inside of the peripheral wall portion, and the peripheral wall portion may be provided with a wiring hole that penetrates into the inside of the main body portion. Effect of the Invention

[0015] According to the present invention, it is possible to provide a lighting device in which the cable can be internally mounted without applying a load to the cable. [Brief description of the drawings]

[0016] [Figure 1] 1 is a schematic diagram showing an illumination device according to an embodiment of the present invention; [Diagram 2] FIG. 1 is a diagram showing an installation state of a lighting device according to an embodiment of the present invention; [Diagram 3] FIG. 1 is a front view showing an illumination device according to an embodiment of the present invention; [Figure 4] FIG. 1 is a rear view showing the lighting device according to the embodiment; [Diagram 5] FIG. 3 is an exploded view showing a part of the base part according to the embodiment. [Figure 6] FIG. 1 is a cross-sectional view showing a light source unit according to an embodiment of the present invention; [Figure 7] FIG. 2 is an exploded view showing the housing of the light source unit and the arm body according to the embodiment; [Figure 8] FIG. 1 is a schematic diagram showing a housing of a light source unit and an arm body according to an embodiment of the present invention; [Figure 9] FIG. 1 is a schematic diagram showing a housing of a light source unit according to an embodiment of the present invention; [Figure 10] FIG. 1 is a schematic diagram showing a light source unit and an arm body according to an embodiment of the present invention; [Figure 11] FIG. 1 is a schematic diagram showing a horizontal rotation mechanism according to the present embodiment; [Figure 12] FIG. 1 is a schematic diagram showing a vertical rotation mechanism according to the present embodiment; [Figure 13] FIG. 1 is an exploded view showing a support arm according to the present embodiment. [Figure 14] FIG. 1 is a schematic diagram showing a support arm according to an embodiment of the present invention; [Figure 15] FIG. 1 is a schematic diagram showing a support arm according to an embodiment of the present invention; [Figure 16] FIG. 1 is a side view showing an arm body of a support arm according to an embodiment of the present invention; [Figure 17] FIG. 1 is a side view showing a light source unit and an arm body according to the embodiment; [Figure 18] FIG. 1 is a diagram showing a rotation range of a horizontal rotation mechanism according to the present embodiment; [Figure 19] FIG. 1 is a diagram showing a rotation range of a vertical rotation mechanism according to the present embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] The best mode for carrying out the present invention will be described below with reference to the drawings. Note that the following embodiments do not limit the inventions according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention. The drawings are schematic diagrams in which emphasis, omission, and ratio adjustments have been appropriately made to illustrate the present invention, and may differ from the actual shapes, positional relationships, and ratios.

[0018] [Configuration of the lighting device according to this embodiment] First, an illumination device 10 according to an embodiment of the present invention will be outlined with reference to Figs. 1 to 3. As shown in Fig. 1, the illumination device 10 includes a light source unit 20 including a light source LS, a support arm 100 that rotatably supports the light source unit 20, a power supply section 220 (see Fig. 5) that supplies power to the light source unit 20, and a wiring section 230. As shown in Fig. 2, the illumination device 10 according to this embodiment is a illumination device that is attached to an installation surface such as a lighting duct rail 1 installed on a ceiling surface.

[0019] 5, the lighting device 10 includes a horizontal rotation mechanism 30 that rotates the light source unit 20 about an axis perpendicular to the installation surface, a vertical rotation mechanism 40 that rotates the light source unit 20 about an axis parallel to the installation surface, and a base unit 200 that houses a power supply unit 220 and can be fixed to the installation surface. In the lighting device 10, a support arm 100 is attached to a housing 21 of the light source unit 20, which will be described later. As shown in FIGS. 1 and 3, the vertical rotation mechanism 40 is attached to the outside of a first support arm unit 120, which will be described later, of the support arm 100. In the following description, the side of the vertical rotation mechanism 40 of the lighting device 10 will be described as the left.

[0020] In this embodiment, it is assumed that the lighting device 10 is attached to a lighting duct rail 1 installed on a ceiling surface, and the description will be given assuming that the rotation direction around an axis perpendicular to the installation surface is the horizontal direction and the rotation direction around an axis parallel to the installation surface is the vertical direction, but is not limited thereto. For example, the lighting device 10 may be attached to a surface extending in a direction intersecting the ceiling surface, such as a wall surface, in which case the rotation direction around an axis perpendicular to the installation surface is the vertical direction and the rotation direction around an axis parallel to the installation surface is the horizontal direction.

[0021] Next, each component of the lighting device 10 will be described in detail. 6, the light source unit 20 includes a light source LS, a lens FL provided to face the light source LS, and a housing 21 to which the light source LS is attached. The light source unit 20 also includes a light distribution conversion panel C that is disposed in front of the lens FL and can be easily attached and detached by the user.

[0022] As shown in FIG. 7, the housing 21 has a cylindrical main body 22 and a first support arm connection portion 23 provided on the side of the main body 22, and is made of, for example, die-cast aluminum.

[0023] The main body 22 has an inner diameter that allows the lens FL to be attached. As shown in FIG. 6, the main body 22 has a light source base 27 on the front surface facing the lens FL, and the light source LS is attached to the light source base 27. The light source LS is a high-brightness light source of 1000 lm class. In this embodiment, the light source LS is a chip on board LED (Light Emitting Diode) that can adjust the brightness and color, but is not limited to this and various arbitrary configurations can be adopted.

[0024] 6, the lens FL is attached inside the main body 22 along the irradiation axis direction of the light source LS. In this embodiment, the lens FL is a Fresnel lens, but is not limited to this and various arbitrary configurations can be adopted.

[0025] 4 and 9, a heat dissipation section 60 is provided on the rear surface of the main body section 22. The heat dissipation section 60 has a plurality of fins F.

[0026] 9, the first support arm connection portion 23 has a peripheral wall portion 24 extending from the main body portion 22 in the radial direction of the main body portion 22. The peripheral wall portion 24 is provided with a wiring hole 25 penetrating into the inside of the main body portion 22. In addition, the first support arm connection portion 23 has a vertical rotation shaft 26 for connecting the light source unit 20 and the first support arm portion 120.

[0027] The vertical rotation shaft 26 is formed in the center of the peripheral wall portion 24. A first shaft hole 26a for attaching the support arm 100 is formed in the center of the vertical rotation shaft 26. A second shaft hole (not shown) is formed on the right side of the main body portion 22 at a position shifted by 180° from the first shaft hole 26a in the circumferential direction of the main body portion 22. The first shaft hole 26a and the second shaft hole are formed at the center of gravity of the light source unit 20 in the axial direction of the light source unit 20. With this configuration, the light source unit 20 can rotate vertically around the center of gravity as shown in FIG. 8. Furthermore, since the first shaft hole 26a and the second shaft hole are formed at the center of gravity of the light source unit 20, the light source unit 20 can be rotated with a smaller force than when they are formed at a non-center of gravity position, so that a relatively inexpensive and small motor, for example, a brushed DC motor, can be used as the vertical rotation motor 42 described later. As a result, power consumption can be reduced, and vertical rotation mechanism 40 including vertical rotation motor 42, and thus lighting device 10, can be manufactured inexpensively and in a compact size.

[0028] 10, the first support arm connection part 23 has a vertical rotation mechanism connection part 28. The vertical rotation mechanism connection part 28 has a base part attached to the bottom part of the first support arm connection part 23, i.e., the side part of the main body part 22, a wall part extending in a direction intersecting with the base part (the radial direction of the main body part 22), and a shaft part provided at an end part of the wall part and having a screw thread at its tip part. The shaft part has an outer diameter that allows a vertical rotation worm wheel 45 of the vertical rotation mechanism 40, a vertical rotation wave washer, and a vertical rotation locking nut 46 to be described later to be inserted therethrough.

[0029] As shown in FIG. 11, the horizontal rotation mechanism 30 is disposed within the base section 200, and comprises a horizontal rotation motor 32, a horizontal rotation worm gear 33 (horizontal rotation worm 34 and horizontal rotation worm wheel 35), a bearing (not shown) that rotatably supports the horizontal rotation shaft 112 of the horizontal rotation section 110 of the support arm 100 described later, a horizontal rotation wave washer (not shown), a horizontal rotation anti-loosening nut 37 attached to the tip of the horizontal rotation shaft 112, an encoder mounting arm 38, and a horizontal rotation encoder 39 (see FIG. 5).

[0030] A horizontal rotation cable (described later) of the wiring section 230 is connected to the horizontal rotation motor 32. The horizontal rotation worm 34 is attached to the horizontal rotation motor 32, and is configured to transmit the rotation of the horizontal rotation motor 32 to the horizontal rotation worm wheel 35. The horizontal rotation worm wheel 35, the bearing, the horizontal rotation wave washer, and the horizontal rotation locking nut 37 have an inner diameter that allows the horizontal rotation shaft 112 to be inserted therethrough, and the horizontal rotation shaft 112 is inserted therethrough in the order of the bearing, the horizontal rotation worm wheel 35, the horizontal rotation wave washer, and the horizontal rotation locking nut 37.

[0031] As a result, the horizontal rotation locking nut 37 is fixed to the horizontal rotation shaft 112, and the horizontal rotation worm wheel 35 and the horizontal rotation locking nut 37 are engaged via the horizontal rotation wave washer. With this configuration, the horizontal rotation shaft 112 is rotatably supported, and the rotation of the horizontal rotation motor 32 can be transmitted to the horizontal rotation shaft 112 via the horizontal rotation worm gear 33 and the horizontal rotation locking nut 37.

[0032] In addition, since the horizontal rotation worm wheel 35 and the horizontal rotation anti-loosening nut 37 are engaged via the horizontal rotation wave washer, when a strong external force is applied to the horizontal rotation shaft 112, the horizontal rotation worm wheel 35 will spin freely, preventing damage to the horizontal rotation mechanism 30.

[0033] Further, the horizontal rotation locking nut 37 is provided integrally with an encoder mounting arm 38. The encoder mounting arm 38 rises upward from the horizontal rotation locking nut 37 and has a bent shape that is bent at multiple points, and its tip is located above the rotation axis of the horizontal rotation shaft 112, the horizontal rotation worm wheel 35, and the horizontal rotation locking nut 37. A horizontal rotation encoder 39 that detects the horizontal rotation angle of the horizontal rotation shaft 112, and therefore the support arm 100 and the light source unit 20 is attached to the tip of this encoder mounting arm 38. The horizontal rotation encoder 39 can have various known configurations, so a detailed description thereof will be omitted.

[0034] With this configuration, the horizontal rotation mechanism 30 is configured to transmit the driving force of the horizontal rotation motor 32 to the horizontal rotation shaft 112 via the horizontal rotation worm gear 33, thereby enabling the support arm 100 and the light source unit 20 to rotate around an axis perpendicular to the installation surface.

[0035] As shown in FIG. 12, the vertical rotation mechanism 40 has a vertical rotation motor box 41, a vertical rotation motor 42 arranged in the vertical rotation motor box 41, a vertical rotation worm gear 43 (vertical rotation worm 44 and vertical rotation worm wheel 45), a vertical rotation wave washer (not shown), a vertical rotation anti-loosening nut 46 attached to the tip of the second extension portion 124 of the first support arm portion 120 of the support arm 100 described later, and a vertical rotation encoder 47.

[0036] The vertical rotation motor box 41 is attached to the second extension portion 124 of the first support arm portion 120 of the support arm 100. A vertical rotation cable 260 of the wiring portion 230, which will be described later, is connected to the vertical rotation motor 42.

[0037] The vertical rotation worm 44 is attached to the vertical rotation motor 42, and is configured to transmit the rotation of the vertical rotation motor 42 to the vertical rotation worm wheel 45. The vertical rotation worm wheel 45, the vertical rotation wave washer, and the vertical rotation locking nut 46 have inner diameters that allow them to be inserted into the shaft portion of the vertical rotation mechanism connection part 28 of the first support arm connection part 23 of the light source unit 20, and are inserted into the shaft portion of the vertical rotation mechanism connection part 28 of the first support arm connection part 23 in the order of the vertical rotation worm wheel 45, the vertical rotation wave washer, and the vertical rotation locking nut 46.

[0038] As a result, the vertical rotation locking nut 46 is fixed to the shaft of the vertical rotation mechanism connection part 28 of the first support arm connection part 23, and the vertical rotation worm wheel 45 and the vertical rotation locking nut 46 are engaged via the vertical rotation wave washer. With this configuration, the shaft of the vertical rotation mechanism connection part 28 of the first support arm connection part 23, and therefore the main body part 22 of the housing 21 of the light source unit 20, are rotatably supported, and the rotation of the vertical rotation motor 42 can be transmitted to the shaft of the vertical rotation mechanism connection part 28 of the first support arm connection part 23, and therefore the main body part 22 of the housing 21, via the vertical rotation worm gear 43 and the vertical rotation locking nut 46.

[0039] In addition, since the vertical rotation worm wheel 45 and the vertical rotation anti-loosening nut 46 are engaged via a vertical rotation wave washer, when a strong external force is applied to the light source unit 20, the vertical rotation worm wheel 45 will spin freely, preventing damage to the vertical rotation mechanism 40.

[0040] The vertical rotation encoder 47 is attached to the tip of the second extension portion 124 of the first support arm portion 120, and therefore on an extension line of the axis of the vertical rotation shaft 26 of the housing 21 of the light source unit 20. The vertical rotation encoder 47 is configured to be able to detect the vertical rotation angle of the light source unit 20. Note that the vertical rotation encoder 47 can employ various known configurations, and therefore detailed description thereof will be omitted.

[0041] With this configuration, the vertical rotation mechanism 40 is configured to transmit the driving force of the vertical rotation motor 42 to the axis of the vertical rotation mechanism connection portion 28 of the first support arm connection portion 23 via the vertical rotation worm gear 43, thereby enabling the light source unit 20 to rotate around an axis parallel to the installation surface.

[0042] [Support arm configuration] Next, each component of the support arm 100 will be described in detail. 13 and 14, the support arm 100 includes an arm body 102 and an arm cover 104 attached to the second extension portion 124 of the first support arm portion 120. The support arm 100 also has an internal space capable of storing a light source cable 250.

[0043] The arm main body 102 includes a horizontal rotation section 110 having a horizontal rotation axis 112, a first support arm section 120 extending from one end on the circumference of the horizontal rotation section 110, and a second support arm section 130 extending from the other end on the circumference of the horizontal rotation section 110 and arranged opposite the first support arm section 120.

[0044] Moreover, the support arm 100 is configured to rotatably support the light source unit 20 between the first support arm portion 120 and the second support arm portion 130. Specifically, the first support arm portion 120 and the second support arm portion 130 are configured to rotatably support the light source unit 20 about an axis parallel to the installation surface.

[0045] The horizontal rotation part 110 has a thread formed on one end of the horizontal rotation shaft 112 onto which a horizontal rotation locking nut 37 can be screwed. The horizontal rotation shaft 112 is configured in a cylindrical shape into which the light source cable 250 and the vertical rotation cable 260 of the wiring part 230 can be inserted.

[0046] The horizontal rotation unit 110 having such a configuration is connected to the base unit 200 so as to be rotatable about an axis perpendicular to the installation surface. Specifically, the horizontal rotation unit 110 is configured so that the horizontal rotation shaft 112 can be attached to the horizontal rotation mechanism 30, and is connected to the base unit 200 so as to be rotatable in the horizontal direction by inserting the horizontal rotation shaft 112 into a hole provided in a bottom part of the base unit 200, which will be described later, and then attaching the horizontal rotation shaft 112 to the horizontal rotation mechanism 30.

[0047] 13 and 15, the first support arm portion 120 has a first extension portion 122 extending from one end portion on the circumference of the horizontal rotation portion 110 in the circumferential direction of the horizontal rotation portion 110, and a second extension portion 124 extending from the first extension portion 122 in a direction intersecting the extending direction of the first extension portion 122. The first support arm portion 120 also has a rotation shaft insertion hole 126 provided at the tip portion of the second extension portion 124, and a vertical rotation mechanism attachment portion 128 to which the vertical rotation motor box 41 can be attached.

[0048] The first extending portion 122 and the second extending portion 124 have an internal space capable of storing the light source cable 250 and the vertical rotation cable 260. Specifically, the first extending portion 122 has a cavity 122a formed from the horizontal rotation shaft 112 side to the second extending portion 124 side, as shown in Figs.

[0049] 16, the second extending portion 124 is provided with a light source path 124a for arranging the light source cable 250 and a vertical rotation path 124b for arranging the vertical rotation cable 260. The second extending portion 124 is also provided with a common path 124c for arranging the light source cable 250 and the vertical rotation cable 260. The common path 124c is provided from the end of the second extending portion 124 on the first extending portion 122 side to the middle part of the second extending portion 124, and branches from the middle part into the light source path 124a and the vertical rotation path 124b.

[0050] The light source path 124a is provided from the middle to the tip of the second extending portion 124, and a cable insertion hole 124d is formed at the end on the tip side, penetrating the second extending portion 124. The vertical rotation path 124b extends from the middle of the second extending portion 124 in a direction intersecting with the light source path 124a.

[0051] 14 and 15, the second support arm portion 130 has a first extension portion 132 extending from multiple ends on the circumference of the horizontal rotation portion 110 in the circumferential direction of the horizontal rotation portion 110, and a second extension portion 134 extending from the first extension portion 132 in a direction intersecting the extending direction of the first extension portion 132. In addition, the second support arm portion 130 has a rotation shaft insertion hole 136 provided at the tip portion of the second extension portion 134.

[0052] The support arm 100 is configured to rotatably support the housing 21, and ultimately the light source unit 20, from the left and right sides of the housing 21 by inserting a first vertical rotation shaft (not shown) into the rotation shaft insertion hole 126 of the first support arm portion 120 and the first shaft hole 26a of the vertical rotation shaft 26 of the housing 21, and by inserting a second vertical rotation shaft (not shown) into the rotation shaft insertion hole 136 of the second support arm portion 130 and the second shaft hole of the housing 21.

[0053] 1 and 2, the base unit 200 includes a fixing portion 210 and is configured to be fixable to an installation surface such as a lighting duct rail 1 via the fixing portion 210. The base unit 200 includes a power supply unit 220 and a horizontal rotation mechanism 30, as well as a communication module, various control units, a memory, etc. The base unit 200 also includes a hole (not shown) at the bottom through which the horizontal rotation shaft 112 can be inserted.

[0054] The power supply unit 220 converts AC voltage supplied from indoor wiring or the like into DC voltage, and supplies the DC voltage transformed to an appropriate voltage value to the light source unit 20, horizontal rotation mechanism 30, and vertical rotation mechanism 40 of the lighting device 10.

[0055] [Wiring section configuration] 5 and 17, the wiring section 230 includes a light source cable 250 that electrically connects the light source unit 20 and the power supply section 220, a vertical rotation cable 260 that electrically connects the vertical rotation mechanism 40 and the power supply section 220, and a horizontal rotation cable (not shown) that electrically connects the horizontal rotation mechanism 30 and the power supply section 220. In addition, the wiring section 230 includes a sleeve 240 that covers the periphery of the light source cable 250 and the vertical rotation cable 260.

[0056] The sleeve 240 is formed, for example, by a braided structure in which nylon threads and polyethylene terephthalate threads are woven together. The sleeve 240 has a diameter that allows it to pass through the inside of the horizontal rotation locking nut 37 of the horizontal rotation mechanism 30 and the horizontal rotation shaft 112 of the horizontal rotation unit 110.

[0057] The sleeve 240 having such a configuration is a flexible tubular member, and is configured to protect the light source cable 250 and the vertical rotation cable 260 in order to prevent breakage of the light source cable 250 and the vertical rotation cable 260. Specifically, the sleeve 240 is attached to the outer periphery of the light source cable 250 and the vertical rotation cable 260 from the power supply unit 220 to the common path 124c of the second extension portion 124 of the first support arm unit 120 of the support arm 100.

[0058] It should be noted that the wiring portion 230 does not necessarily have to include the sleeve 240 .

[0059] In the lighting device of the present embodiment, the light source cable 250, the vertical rotation cable 260, and the horizontal rotation cable are not general-purpose cables used in general lighting fixtures, but robot cables that are extremely excellent in bending resistance, twisting resistance, and durability, but are not limited to this.

[0060] 15, only one each of the light source cable 250 and the vertical rotation cable 260 are shown, but this does not indicate the actual number of the light source cable 250 and the vertical rotation cable 260. For example, the light source cable 250 is made up of four cables, and the vertical rotation cable 260 is made up of two cables. That is, the light source cable 250 and the vertical rotation cable 260 may each be made up of one cable or multiple cables.

[0061] The light source cable 250 is disposed in the internal space of the horizontal rotation part 110 and the first support arm part 120. Specifically, one end of the light source cable 250 is connected to the power supply part 220, and the other end passes through the inside of the horizontal rotation locking nut 37 of the horizontal rotation mechanism 30 of the lighting device 10, the inside of the horizontal rotation shaft 112 of the horizontal rotation part 110 of the support arm 100, and the first extension part 122 and the second extension part 124 of the first support arm part 120 of the support arm 100 to be connected to the light source LS of the light source unit 20.

[0062] The light source cable 250 is provided with an extension / contraction section 252 that extends and contracts in response to the rotation of the light source unit 20. In this embodiment, the extension / contraction section 252 is provided in the internal space of the first support arm connection section 23 of the housing 21 of the light source unit 20. The extension / contraction section 252 is provided around the center of rotation in the rotation direction of the light source unit 20. Specifically, as shown in FIG. 17 , the light source cable 250 passes through the common path 124c and the light source path 124a of the second extension section 124 of the first support arm section 120 of the support arm 100, is inserted through the cable insertion hole 124d of the first support arm section 120, and is wired to the back side (light source unit 20 side) of the first support arm section 120.

[0063] The light source cable 250 then goes around the tip of the second extension portion 124 of the first support arm portion 120, specifically, around the pivot shaft insertion hole 126 of the first support arm portion 120, and is inserted into the wiring hole 25 of the peripheral wall portion 24 of the first support arm connection portion 23 of the light source unit 20 to be connected to the light source LS of the light source unit 20.

[0064] The extension portion 252 in this embodiment is a portion that goes around the pivot shaft insertion hole 126 of the first support arm portion 120 described above. In other words, the extension portion 252 is around the vertical pivot shaft 26 of the first support arm connection portion 23 of the light source unit 20, and is formed by the light source cable 250 going around the inside of the peripheral wall portion 24 of the first support arm connection portion 23 of the light source unit 20.

[0065] In this embodiment, the extension / contraction portion 252 goes around the vertical rotation axis 26 of the first support arm connection portion 23 of the light source unit 20 once, but is not limited to this and may go around the vertical rotation axis 26 multiple times.

[0066] 2, the light source cable 250 is wound around the vertical rotation shaft 26 of the first support arm connection part 23 of the light source unit 20 so that the diameter of the extension part 252 is maximum when the light source unit 20 is in a horizontal state (when the light source unit 20 is parallel to the installation surface). The diameter of the extension part 252 is configured to be minimum when the light source unit 20 faces vertically downward, that is, when the light source unit 20 is rotated -90° around an axis parallel to the installation surface from a state in which the optical axis of the light source LS is parallel to the installation surface (a horizontal state 180° opposite to that in FIG. 2).

[0067] The telescopic portion 252 has such a configuration, and thus has an advantage that the diameter of the circuit of the light source cable 250 forming the telescopic portion 252 expands or contracts in accordance with the vertical rotation of the light source unit 20, and it is possible to prevent a load being applied to the light source cable 250 during rotation, which may result in breakage of the light source cable 250. In addition, the telescopic portion 252 has an advantage that it is possible to prevent the length of the light source cable 250 from becoming redundant.

[0068] One end of the vertical rotation cable 260 is connected to the power supply unit 220, and the other end is connected to the vertical rotation motor 42 of the vertical rotation mechanism 40. The vertical rotation cable 260 is disposed in the internal space of the horizontal rotation unit 110 and the first support arm unit 120. Specifically, together with the light source cable 250, the vertical rotation cable 260 is inserted into the horizontal rotation locking nut 37 of the horizontal rotation mechanism 30 of the lighting device 10, the horizontal rotation shaft 112 of the horizontal rotation unit 110 of the support arm 100, and the first extension unit 122 and the second extension unit 124 of the first support arm unit 120 of the support arm 100.

[0069] One end of the horizontal rotation cable is connected to the power supply unit 220, and the other end is connected to the horizontal rotation motor 32 of the horizontal rotation mechanism 30. The horizontal rotation cable is also disposed in the internal space of the base unit 200.

[0070] [Operation of the lighting fixture body according to this embodiment] Next, the operation of the lighting device 10 according to this embodiment will be described with reference to FIGS. As shown in Figures 18 and 19, in the lighting device 10 of this embodiment, when the horizontal rotation motor 32 of the horizontal rotation mechanism 30 is driven, the support arm 100 and the light source unit 20 rotate horizontally relative to the installation surface (pan operation), and when the vertical rotation motor 42 of the vertical rotation mechanism 40 is driven, the light source unit 20 rotates in a direction intersecting the installation surface (tilt operation).

[0071] Specifically, as shown in Fig. 2 and Fig. 18, the light source unit 20 can be rotated in the horizontal direction up to 90° to the left and right from the state shown in Fig. 2. Also, as shown in Fig. 19, the light source unit 20 can be rotated in a direction intersecting the installation surface from a state in which the light source unit 20 faces vertically downward, i.e., a state in which the installation surface and the optical axis of the light source LS are parallel, until the angle between the installation surface and the optical axis becomes a maximum of 90°.

[0072] That is, the lighting device 10 can oscillate up to a maximum of 180° in the vertical direction and 180° in the horizontal direction. Furthermore, by combining these movements, the lighting device 10 can oscillate up to a maximum of 360° in the horizontal direction.

[0073] With this configuration, even if the wiring section 230 is inserted inside the horizontal rotation anti-loosening nut 37 of the horizontal rotation mechanism 30, as shown in FIG. 11, there is no interference between the encoder mounting arm 38 of the horizontal rotation mechanism 30 and the wiring section 230, which has the advantage that the light source cable 250 and the vertical rotation cable 260 of the wiring section 230 will not be broken when rotated horizontally.

[0074] [Method of controlling the lighting fixture body according to this embodiment] The control system of the lighting device 10 according to this embodiment is concentrated in the base unit 200. The base unit 200 has a communication module (not shown), a main control unit (not shown), and a storage unit (not shown). The communication module performs two-way wireless communication with, for example, a remote control for remote operation, a smartphone, a tablet terminal, or the like. When a plurality of lighting devices 10 are installed, wireless communication is possible between the communication modules of the base units 200 of the respective lighting devices 10, and thus a mesh-type network capable of two-way wireless communication between the plurality of lighting devices 10 can be constructed.

[0075] The main control unit transmits and receives information to and from the communication module, and performs overall control of the lighting device 10. The memory unit stores information and the like sent from the communication module via the main control unit, and also stores various programs and the like required to operate the lighting device 10.

[0076] The main control unit also has a light source control unit (not shown) that controls the light source LS of the light source unit 20, and a posture control unit (not shown) that controls the horizontal rotation motor 32 of the horizontal rotation mechanism 30 and the vertical rotation motor 42 of the vertical rotation mechanism 40. The light source control unit performs on / off control, dimming control, and color adjustment control of the light source LS.

[0077] The attitude control unit controls the horizontal rotation motor 32 of the horizontal rotation mechanism 30 and the vertical rotation motor 42 of the vertical rotation mechanism 40 to control the horizontal rotation operation and vertical rotation operation of the lighting device 10. Specifically, the attitude control unit controls the drive of the horizontal rotation motor 32 of the horizontal rotation mechanism 30 to control the horizontal rotation operation of the support arm 100 and the light source unit 20, and controls the drive of the vertical rotation motor 42 of the vertical rotation mechanism 40 to control the vertical rotation operation of the light source unit 20.

[0078] [Advantages of the lighting device according to this embodiment] As described above, the lighting device 10 according to this embodiment includes the light source unit 20 including the light source LS, the support arm 100 that rotatably supports the light source unit 20, the power supply section 220 that supplies power to the light source unit 20, and the wiring section 230, and the wiring section 230 includes a light source cable 250 that electrically connects the light source unit 20 and the power supply section 220, the support arm 100 has an internal space capable of storing the light source cable 250, and the light source cable 250 is provided with an extension section 252 that extends and contracts in response to the rotation of the light source unit 20.

[0079] And, by being provided with such a configuration, the lighting device 10 according to this embodiment is capable of storing the light source cable 250 in the support arm 100, and since the light source cable 250 is provided with an extension section 252 which extends and contracts in response to the rotation of the light source unit 20, no load is placed on the light source cable 250 even when the light source unit 20 rotates, and therefore, it has the advantage that the cable can be internally mounted without any load being placed on the cable.

[0080] Moreover, the lighting device 10 according to this embodiment includes a base unit 200 that houses the power supply unit 220 and can be fixed to an installation surface, and the support arm 100 includes a horizontal rotation unit 110 that is connected to the base unit 200 so as to be rotatable about an axis perpendicular to the installation surface, and a first support arm unit 120 that extends from the horizontal rotation unit 110, and the first support arm unit 120 is configured to support the light source unit 20 so as to be rotatable about an axis parallel to the installation surface, and the extension unit 252 is provided around the center of rotation in the rotation direction of the light source unit 20. With this configuration, the extension unit 252 extends and contracts in accordance with the rotation of the light source unit 20, which has the advantage that the cable can be internally installed without applying a load to the cable.

[0081] Furthermore, in the lighting device 10 according to this embodiment, the light source unit 20 includes a vertical rotation axis 26 for connecting the light source unit 20 and the first support arm portion 120, and the telescopic portion 252 is configured as being formed by winding the light source cable 250 around the vertical rotation axis 26. As a result, the diameter of the wound light source cable 250 repeatedly expands and contracts in accordance with the rotation of the light source unit 20, and there is no risk of the telescopic portion 252 becoming tangled due to expansion and contraction. This has the advantage that the original state of the telescopic portion 252 can be maintained even after long-term use, and the function of the telescopic portion 252 can be exhibited.

[0082] Furthermore, in the lighting device 10 according to this embodiment, the support arm 100 includes a horizontal rotation section 110 having a horizontal rotation shaft 112, a first support arm section 120 extending from one end on the circumference of the horizontal rotation section 110, and a second support arm section 130 extending from the other end on the circumference of the horizontal rotation section 110 and provided opposite the first support arm section 120, and is configured to rotatably support the light source unit 20 between the first support arm section 120 and the second support arm section 130, and the light source cable 250 is disposed in the internal space of the horizontal rotation section 110 and the first support arm section 120. By providing such a configuration, there is an advantage that the light source cable 250 can be internally arranged.

[0083] Moreover, in the lighting device 10 according to this embodiment, the first support arm section 120 has a first extension section 122 extending from one end section on the circumference of the horizontal rotation section 110 in the circumferential direction of the horizontal rotation section 110, and a second extension section 124 extending from the first extension section 122 in a direction intersecting the extending direction of the first extension section 122, and the first extension section 122 and the second extension section 124 have an internal space capable of storing the light source cable 250. By providing such a configuration, there is an advantage that the light source cable 250 can be internally arranged.

[0084] Furthermore, the lighting device 10 according to this embodiment includes a vertical rotation mechanism 40 that rotates the light source unit 20 around an axis parallel to the installation surface, the wiring section 230 includes a vertical rotation cable 260 that electrically connects the vertical rotation mechanism 40 and the power supply section 220, the vertical rotation mechanism 40 is attached to the first support arm section 120, and the vertical rotation cable 260 is disposed in the internal space of the horizontal rotation section 110 and the first support arm section 120. By providing such a configuration, there is an advantage that the vertical rotation cable 260 can be internally arranged.

[0085] Furthermore, in the lighting device 10 according to this embodiment, the internal space of the first support arm portion 120 is provided with a light source path 124a for arranging the light source cable 250 and a vertical rotation path 124b for arranging the vertical rotation cable 260. This configuration has the advantage that the light source cable 250 and the vertical rotation cable 260 can be prevented from becoming entangled and breaking in the internal space of the first support arm portion 120.

[0086] Moreover, in the lighting device 10 according to this embodiment, the light source unit 20 includes a housing 21 to which the light source LS is attached, and the housing 21 has a cylindrical main body 22 and a first support arm connection part 23 provided on a side part of the main body 22, and the expandable part 252 is provided in the internal space of the first support arm connection part 23. By providing such a configuration, there is an advantage that the light source cable 250 can be internally mounted.

[0087] Furthermore, in the lighting device 10 according to this embodiment, the first support arm connection part 23 has a peripheral wall part 24 extending from the main body part 22 in the radial direction of the main body part 22, the telescopic part 252 is formed by the light source cable 250 going around inside the peripheral wall part 24, and the peripheral wall part 24 is provided with a wiring hole 25 penetrating into the inside of the main body part 22. With such a configuration, since the outer periphery of the going around light source cable 250 is protected by the peripheral wall part 24, there is no risk of the telescopic part 252 getting tangled due to telescopic expansion and contraction, and the telescopic part 252 maintains its original state even after long-term use, and the telescopic part 252 can exert its function, and there is no risk of the telescopic part 252 breaking. In addition, since the light source cable 250 passes through a place that cannot be seen from the outside of the housing 21, there is an advantage that the light source cable 250 can be internally installed and the length of the light source cable 250 can be shortened.

[0088] [Variations] Although the preferred embodiments of the present invention have been described above, the technical scope of the present invention is not limited to the scope described in the above-mentioned embodiments. Various modifications and improvements can be made to the above-mentioned embodiments.

[0089] For example, in the above-described embodiment, the lighting device 10 includes a base unit 200 that houses the power supply unit 220 and can be fixed to an installation surface, the support arm 100 includes a horizontal rotation unit 110 that is connected to the base unit 200 so as to be rotatable around an axis perpendicular to the installation surface, and a first support arm unit 120 that extends from the horizontal rotation unit 110, the first support arm unit 120 is configured to support the light source unit 20 so as to be rotatable around an axis parallel to the installation surface, and the telescopic unit 252 is described as being provided around the center of rotation in the rotation direction of the light source unit 20, but is not limited thereto. The telescopic unit 252 does not have to be provided around the center of rotation in the rotation direction of the light source unit 20. For example, the telescopic unit 252 may be provided in the extension direction of the first support arm unit 120 or in a direction intersecting the extension direction.

[0090] In the above-described embodiment, the light source unit 20 includes the vertical rotation shaft 26 for connecting the light source unit 20 and the first support arm portion 120, and the telescopic portion 252 is formed by winding the light source cable 250 around the vertical rotation shaft 26, but this is not limiting. The telescopic portion 252 does not have to be formed by winding the light source cable 250 around the vertical rotation shaft 26. For example, the telescopic portion 252 may be stored in the internal space of the first support arm portion 120 in a bellows-like shape.

[0091] In the above-described embodiment, the support arm 100 includes the horizontal rotation section 110 having the horizontal rotation shaft 112, the first support arm section 120 extending from one end on the circumference of the horizontal rotation section 110, and the second support arm section 130 extending from the other end on the circumference of the horizontal rotation section 110 and provided opposite the first support arm section 120, and is configured to rotatably support the light source unit 20 between the first support arm section 120 and the second support arm section 130, and the light source cable 250 has been described as being disposed in the internal space of the horizontal rotation section 110 and the first support arm section 120, but is not limited thereto. The support arm 100 does not have to include the second support arm section 130.

[0092] In the above-described embodiment, the first support arm portion 120 has a first extension portion 122 extending from one end portion on the circumference of the horizontal rotation portion 110 in the circumferential direction of the horizontal rotation portion 110, and a second extension portion 124 extending from the first extension portion 122 in a direction intersecting the extension direction of the first extension portion 122, and the first extension portion 122 and the second extension portion 124 have been described as having internal spaces capable of storing the light source cable 250, but this is not limited to the above.

[0093] In the above-described embodiment, the lighting device 10 includes the vertical rotation mechanism 40 that rotates the light source unit 20 around an axis parallel to the installation surface, the wiring unit 230 includes the vertical rotation cable 260 that electrically connects the vertical rotation mechanism 40 and the power supply unit 220, the vertical rotation mechanism 40 is attached to the first support arm unit 120, and the vertical rotation cable 260 is disposed in the internal space of the horizontal rotation unit 110 and the first support arm unit 120. However, the present invention is not limited to this. The lighting device 10 does not need to include the vertical rotation mechanism 40. The vertical rotation mechanism 40 may be attached to the second support arm unit 130 instead of the first support arm unit 120. Furthermore, the second support arm unit 130 may have an internal space, and the vertical rotation cable 260 may be disposed in the internal space of the horizontal rotation unit 110 and the second support arm unit 130 instead of the internal space of the horizontal rotation unit 110 and the first support arm unit 120.

[0094] In the above embodiment, the internal space of the first support arm unit 120 has been described as being provided with the light source path 124a for arranging the light source cable 250 and the vertical rotation path 124b for arranging the vertical rotation cable 260, but is not limited thereto. The internal space of the first support arm unit 120 does not necessarily have to be provided with the light source path 124a and the vertical rotation path 124b. That is, the light source cable 250 and the vertical rotation cable 260 may be arranged in the same path in the internal space of the first support arm unit 120.

[0095] In the above-described embodiment, the light source unit 20 includes the housing 21 to which the light source LS is attached, the housing 21 has a cylindrical main body portion 22 and a first support arm connection portion 23 provided on a side portion of the main body portion 22, and the extension / contraction portion 252 is provided in the internal space of the first support arm connection portion 23, but is not limited thereto. The extension / contraction portion 252 does not have to be provided in the internal space of the first support arm connection portion 23. For example, the extension / contraction portion 252 may be provided in the internal space of the base portion 200, the internal space of the horizontal rotation portion 110 of the support arm 100, the internal space of the first support arm portion 120, or the like.

[0096] In the above-described embodiment, the first support arm connection portion 23 has the peripheral wall portion 24 extending from the main body portion 22 in the radial direction of the main body portion 22, the expansion and contraction portion 252 is formed by the light source cable 250 going around the inside of the peripheral wall portion 24, and the peripheral wall portion 24 is provided with the wiring hole 25 penetrating into the inside of the main body portion 22, but this is not limited to the above. The first support arm connection portion 23 may not have the peripheral wall portion 24. In addition, the expansion and contraction portion 252 may not be formed by the light source cable 250 going around the inside of the peripheral wall portion 24. Furthermore, the peripheral wall portion 24 may not be provided with the wiring hole 25.

[0097] In the above-described embodiment, the light source unit 20 has been described as including the light distribution conversion panel C, but is not limited thereto, and the light source unit 20 does not have to include the light distribution conversion panel C. Furthermore, the light source unit 20 may include, instead of the light distribution conversion panel C, a light distribution angle variation mechanism that varies the distance between the light source LS and the lens FL. [Explanation of symbols]

[0098] 1. Lighting duct rail 10. Lighting Equipment 20 Light source unit 21 Case 22 Main body 23 First support arm connection part 24 Peripheral wall section 25 Wiring hole 26 Vertical Rotation Axis 26a 1st shaft hole 27 Light source base 28 Vertical rotation mechanism connection part 30 Horizontal rotation mechanism 32 Horizontal rotation motor 33 Worm gear for horizontal rotation 34 Horizontal rotation worm 35 Worm wheel for horizontal rotation 37 Anti-loosening nut for horizontal rotation 38 Encoder mounting arm 39 Horizontal rotation encoder 40 Vertical rotation mechanism 41 Vertical rotation motor box 42 Vertical rotation motor 43 Vertical rotation worm gear 44 Vertical rotation worm 45 Vertical rotation worm wheel 46 Vertical rotation locking nut 47 Vertical rotation encoder 60 Heat dissipation part 90 Installation aid 100 Support Arm 102 Arm body 104 Arm Cover 110 Horizontal rotation part 112 Horizontal rotation axis 114 Horizontal support arm 120 First support arm part 122 1st extension part 122a Cavity 124 Second extension part 124a Light source path 124b Vertical rotation path 124c Common Route 124d Cable insertion hole 126 Rotating shaft insertion hole 128 Vertical rotation mechanism mounting part 130 Second support arm part 132 1st extension part 134 Second extension part 136 Rotating shaft insertion hole 200 Base 210 Fixed part 220 Power supply section 230 Wiring section 240 Sleeve 250 Light source cable 252 Telescopic part 260 vertical rotation cable C Light distribution conversion panel F Fin FL Lens LS light source

Claims

1. a light source unit including a light source; a support arm that rotatably supports the light source unit; A power supply unit that supplies power to the light source unit; Wiring section and Equipped with the wiring section includes a light source cable that electrically connects the light source unit and the power supply section, the support arm has an internal space capable of accommodating the light source cable, The light source cable is provided with an expandable portion that expands and contracts in response to the rotation of the light source unit. A lighting device characterized by:

2. a base unit that houses the power supply unit and can be fixed to an installation surface; The support arm includes: a horizontal rotation part connected to the base part so as to be rotatable about an axis perpendicular to the installation surface; a first support arm portion extending from the horizontal rotation portion; Including, the first support arm portion is configured to support the light source unit rotatably about an axis parallel to the installation surface, The expandable portion is provided around a rotation center in a rotation direction of the light source unit.

2. The lighting device according to claim 1 .

3. the light source unit includes a vertical rotation shaft for connecting the light source unit and the first support arm portion, The telescopic portion is formed by winding the light source cable around the vertical rotation shaft.

3. The lighting device according to claim 2.

4. The support arm includes: A horizontal rotation part having a horizontal rotation shaft; a first support arm portion extending from one end of the horizontal rotation portion on a circumference thereof; a second support arm portion extending from the other end of the circumference of the horizontal rotation portion and provided opposite to the first support arm portion; Including, The light source unit is configured to be rotatably supported between the first support arm portion and the second support arm portion, The light source cable is disposed in the internal space of the horizontal rotation portion and the first support arm portion.

2. The lighting device according to claim 1 .

5. The first support arm portion is a first extension portion extending from one end portion on the circumference of the horizontal rotation portion in a circumferential direction of the horizontal rotation portion; a second extending portion extending from the first extending portion in a direction intersecting the extending direction of the first extending portion; having The first extension portion and the second extension portion have an internal space capable of accommodating the light source cable.

5. The lighting device according to claim 4.

6. a vertical rotation mechanism that rotates the light source unit around an axis parallel to an installation surface; the wiring unit includes a vertical rotation cable that electrically connects the vertical rotation mechanism and the power supply unit, the vertical rotation mechanism is attached to the first support arm portion, The vertical rotation cable is disposed in the internal space of the horizontal rotation portion and the first support arm portion. The lighting device according to any one of claims 2 to 4.

7. The internal space of the first support arm portion is provided with a light source path for arranging the light source cable and a vertical rotation path for arranging the vertical rotation cable.

7. The lighting device according to claim 6.

8. The light source unit includes a housing in which the light source is mounted, The housing includes: A cylindrical main body portion; a first support arm connection portion provided on a side portion of the main body portion; having The extension / contraction portion is provided in an internal space of the first support arm connection portion.

3. The lighting device according to claim 1 or 2.

9. the first support arm connection portion has a peripheral wall portion extending from the main body portion in a radial direction of the main body portion, the stretchable portion is formed by winding the light source cable around the inside of the peripheral wall portion, The peripheral wall portion is provided with a wiring hole penetrating into the main body portion.

9. The lighting device according to claim 8.

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