Fan-equipped lighting fixture

Abstract

To provide a lighting device with a fan that can blow air over a wide area and ensures safety in case of falling or breakage. The fan-equipped lighting device 1 according to the present invention is a fan-equipped lighting device consisting of a circular lighting section 20 with a blower section 30 in the center, The blower 30 is characterized by having a first motor 33 that rotates a rotating blade 31 having a plurality of blade bodies 31a in a circumferential direction while tilted from the front side, and a second motor 36 that rotates the rotating blade 31.

Description

[Technical Field]

[0001] This invention relates to a lighting fixture that has a fan at its center as an air blower. [Background technology]

[0002] There has been a lighting device in the past that has a blower in the center when viewed from the front and lighting on the periphery (Patent Document 1). The lighting device with a blower described in Patent Document 1 consists of a central blower and a housing around the blower, with LEDs inside the housing irradiating from the back side to the front side. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Registered Utility Model No. 3221792 Summary of the Invention [Problem to be solved by the invention]

[0004] The lighting device in Patent Document 1 has a lighting unit and a blower unit with a tilting mechanism, and the tilting mechanism is capable of tilting the blower unit at any angle, so that it can be attached to the ceiling and blow air in any direction. However, while tilting the blower unit at any angle is beneficial, when it is attached to the ceiling and used as a circulator, blowing air over a predetermined wide range will best circulate indoor air, and it is not necessarily necessary to change the angle arbitrarily.

[0005] On the other hand, when a lighting fixture that also has a blower is installed on the ceiling, the lighting fixture will have a certain weight. While it is necessary to provide a certain opening for the blower to blow air, since it is installed at the top of the room, safety measures must be taken to prevent the blower from falling or the blades from breaking and scattering. Therefore, there has been a demand for a fan-equipped lighting fixture that can be used as a circulator by blowing air over a wide area with a simple configuration, and that does not obstruct wide-area airflow while also providing safety for downward movement.

[0006] Therefore, the purpose of the lighting fixture with a blower of this invention is to provide a lighting fixture with a simple structure that can blow air over a wide area, and that does not obstruct the blowing of air over a wide area while providing safety for the downward direction. [Means for solving the problem]

[0007] The fan-equipped lighting device according to the present invention is a fan-equipped lighting device consisting of a circular lighting section with a blower section in the center, The blowing unit is characterized by having a first motor that rotates a rotating blade having a plurality of blade bodies in a circumferential direction while tilted from the front side, and a second motor that rotates the rotating blade.

[0008] Furthermore, it is preferable that the airflow cover disposed at the center of the front side of the annular lighting unit has a mesh shape with smaller mesh than the blades and is inclined from the center toward the outer periphery.

[0009] In addition, it is preferable that the air blower cover is formed so that the guard thickness, which is the length from the front side to the back side, is longer than the guard width, which is the circumferential length of a part of the guard body that forms the mesh.

[0010] In addition, it is preferable that a part of the guard body forming the mesh of the air blower cover is inclined from the front side to the back side along the rotation direction in which the air blower section rotates while tilting.

[0011] In addition, the rotating blades of the air blower are located within the vertical width of the circular lighting unit, It is preferable that the lighting unit is supported on the base by a plurality of arm-shaped lighting support parts, and that an opening is formed between the plurality of lighting support parts. [Effects of the Invention]

[0012] According to the invention described in claim 1, the rotating blades rotate in a circumferential direction while being tilted, so that in addition to functioning as an indoor light, they also function as a circulator, enabling air circulation over a wide area.

[0013] According to the invention described in claim 2, a ventilation cover is provided and the mesh of the ventilation guard is smaller than the blade body, thereby preventing the blade body from falling downward in the event of damage, etc., and by sloping from the center to the outer frame to ensure an inclined area for the ventilation part, it is possible to provide a fan-equipped lighting device that is highly safe in the downward direction while allowing air to circulate over a wide area with a simple configuration.

[0014] According to the invention described in claim 3, the part of the guard body that forms the mesh of the ventilation cover has a guard thickness, which is the length from the front side to the back side, that is longer than the guard width, which is the circumferential length, making it possible to provide a fan-equipped lighting fixture that is resistant to impacts from the front side to the back side and has high safety in the downward direction.

[0015] According to the invention described in claim 4, a part of the guard body that forms the mesh of the ventilation cover is inclined from the front side to the back side along the rotation direction in which it rotates, making it possible to provide a fan-equipped lighting fixture that ensures safety without obstructing the wide-area ventilation of the ventilation section and also has high ventilation performance.

[0016] The invention described in claim 5 makes it possible to provide a fan-equipped lighting device that protects the sides of the rotating blades with the lighting section to increase safety, while leaving the top wide open so as not to obstruct the inflow of air. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 2 is a front view of the fan-equipped illuminator of the present embodiment. [Figure 2]FIG. 2 is a right side view of the fan-equipped illuminator of the present embodiment. [Figure 3] FIG. 2 is an exploded perspective view of the fan-equipped illuminator of the present embodiment. [Figure 4] FIG. 2 is a partially enlarged exploded perspective view showing only the blowing section of the fan-equipped illuminator of the present embodiment. [Figure 5] 2A and 2B are enlarged front views of only the blower cover portion from the state of FIG. 1, where (a) is a front view, (b) is an enlarged end view of the AA portion taken along line B-B in (a), and (c) is an enlarged end view of the AA portion taken along line CC in (a). DETAILED DESCRIPTION OF THE INVENTION

[0018] The following description of an embodiment of the present invention will be made with reference to the drawings. In this description, the illuminated fan is intended to be mounted on a ceiling as shown in Figure 2, and will be described from the front view shown in Figure 1. In this description, the top and bottom are defined as the base 40 side and the blower cover 10 side, respectively, based on the ceiling-mounted version.

[0019] As shown in Figures 1 and 2, the fan-equipped lighting device 1 of the present invention comprises a ventilation cover 10 located in the center when viewed from the front, a lighting unit 20 arranged around the ventilation cover 10, a ventilation unit 30, and a base unit 40 located above the ventilation unit 30. The lighting device is attached to a ceiling surface 2, and the ventilation unit 30 rotates in the direction of the arrow Z1 to blow air.

[0020] 1, 2, and 3, the base unit 40 is a foundation for mounting the fan-equipped illuminator 1 on a ceiling. The base unit 40 is made up of a base substrate 41 having lighting support sections 41a, 41a that stand on all four sides and support the lighting section 20 (described below), a contact section 42 that is provided inside the base substrate 41 and contacts the ceiling surface where the unit is to be installed, and a connecting fitting 43 that is provided inside the contact section 42 and receives power from a power supply section (not shown) on the ceiling.

[0021] The base substrate 41 is a cylindrical member that can house the contact portion 42 and the connecting fittings 43. It also has an opening on the front side that can hold a motor or the like for rotating the blower portion 30, which will be described later.

[0022] Four lighting support parts 41a, 41a stand upright from the outer circumferential surface of a cylindrical base substrate 41. In this embodiment, the lighting support parts 41a, 41a are arm-shaped support members that are curved so that they are convex outward. These lighting support parts 41a, 41a support the lighting unit 20 (described below), and the spaces between the four lighting support parts 41a, 41a provide areas for rotatably positioning the air blower unit 30. Each of the four lighting support parts 41a, 41a is a curved arm-shaped member, and wide openings K, K are defined between the lighting support parts 41a, 41a, allowing air (room air) to flow in and out through these wide-open openings K, K.

[0023] 1, 2, 3, and also 4 and 5, blower unit 30 is a component that has a blowing function by rotating rotary impeller 31 having multiple blades 31a, 31a. Rotary impeller 31 is fixed in a tilted state from the vertical direction, and while rotating about the vertical axis in this state, rotary impeller 31 rotates in the circumferential direction to blow air over a wide area. In other words, while rotary impeller 31 rotates with respect to center point C1 of blower cover 10 in the front view shown in FIGS. 1 and 5, center point C2 of rotary impeller 31 is shifted in position due to the tilt, and rotary impeller 31 itself rotates along this tilt so that center point C2 of rotary impeller 31 rotates around center point C1 of blower cover 10 in the front view.

[0024] The configuration of the blower 30 will now be described. As shown in Figures 3 and 4 in particular, the blower 30 has a first motor 33 in a first motor box 32, and the rotational force of this first motor 33 is transmitted to an annular engagement ring 34. The engagement ring 34 engages with a second motor box 35 that houses a second motor 36, and the second motor box 35 engages with the engagement ring 34 in an inclined state. The second motor 36 is housed in the inclined engaged second motor box 35 and has a rotary shaft 36a that transmits the rotational force. Rotary blades 31 are rotatably connected to the rotary shaft 36a and are shielded by a shaft cover 37.

[0025] 4, the direction (arrow X1 direction) from the center of the first motor box 32 downward (toward the front) is offset from the direction (arrow X2 direction) from the center of the second motor box 35 engaged with the engagement ring 34 at an angle. With this configuration, the first motor 33 provided in the first motor box 32 rotates the engagement ring 34, and this rotation causes the second motor box 35, engaged with the engagement ring 34 at an angle, to rotate while tilting. As a result, as shown in FIG. 5, the center point C2 of the rotary vane 31 rotates in the Z2 direction when viewed from the front.

[0026] Next, since the second motor 36 in the inclined second motor box 35 has a rotating shaft 36a that is aligned along the inclined direction, the rotating blades 31 rotatably attached to the rotating shaft 36a rotate in the Z1 direction while tilting and rotating to blow air.

[0027] With this tilt fixed, the rotating blades themselves rotate and blow air, allowing for a simple configuration to blow air over a wide area and circulate indoor air like a circulator. By attaching this blower unit 30 to the lighting unit 20 and installing it on the ceiling of a room in a home or the like, it can not only function as a lighting device for the room, but also circulate air (warm air or cooled air) in the room like a circulator, allowing the air conditioner's functions to be maximized.

[0028] The lighting unit 20 has the air blower 30 positioned at its center. When viewed from the front, the lighting unit is doughnut-shaped, lacking a central portion so that it forms a circular periphery. It is comprised of a lighting base 21, a light-emitting unit 22, and a lighting cover 23. The lighting base 21 is a disc-shaped member lacking a central portion, and has a central protrusion 21a that protrudes from the center toward the front. The light-emitting unit 22 is provided on the lighting base 21 and is a circuit board equipped with LED elements that receives power from an external power source and emits light. The lighting cover 23 of the lighting unit 20 is supported so that it abuts against the outer diameter of the lighting base 21 near the upper end of the central protrusion 21a. The side and front sides, in particular, are made of a translucent material, providing coverage while allowing light emitted from the light-emitting unit 22 to pass through.

[0029] The central protrusion 21a of the lighting unit 20 forms a surface that separates the internal cavity, giving the lighting unit 20 a doughnut-shaped configuration with a hollow interior as a whole. The air supply cover 10 shields the front side of the internal hollow portion of the lighting unit 20 in a mesh-like pattern, and the outer peripheral frame 11 of the air supply cover 10 is fixed to the inner peripheral side of the lighting cover 23. Because of this configuration, the air supply cover 10 is positioned to shield the internal hollow portion of the doughnut-shaped lighting unit 20.

[0030] The lighting unit 20 is formed so that the lighting cover 23 provided on the lighting base 21 protrudes downward, and has a predetermined vertical width (width from the front side to the back side). The rotating blades 31 are located within the vertical width of the lighting unit (see FIG. 2). In other words, the rotating blades 31 are located on the inner periphery of the central protrusion 21a that protrudes from the lighting base 21. By adopting this positional relationship, the lighting unit 20 (central protrusion 21a) can also guard the outer periphery of the rotating blades 31 on the side, thereby increasing safety.

[0031] Next, we will explain the air blower cover 10. As shown in Fig. 1 and Fig. 5, the air blower cover 10 is a circular member formed in a mesh pattern from the front side to the back side, but has a cup-like shape that is gradually sloped toward the front side from the outer frame 11 to the center 12 (see Figs. 2 and 3), and when the fan-equipped lighting device 1 is mounted on a ceiling, the center 12 is positioned at the lowest point and the outer frame 11 is tilted to be positioned higher than the center 12. This shape allows the rotating blades 31 to rotate while tilting and turning, thereby providing reliable protection against damage to the blades 31a, etc., without impeding the air blown by the air blower unit 30, which blows air over a wide area.

[0032] The mesh of the blower cover 10 will now be described. The blower cover 10 has an outer peripheral frame 11 that forms a circular periphery, and an intermediate frame 13 that is formed circumferentially at a position intermediate between the outer peripheral frame 11 and the central portion 12. The blower cover 10 has a plurality of first guard bodies 14, 14 that extend radially from the central portion 12 to the intermediate frame 13, and a plurality of second guard bodies 15, 15 that extend radially from the intermediate frame 13 toward the outer peripheral frame 11. The central portion 12 is a circular plate-shaped member, and in the region from the central portion 12 to the outer peripheral frame 11, the region encompassed by the intermediate frame 13, the plurality of first guard bodies 14, 14, and the second guard bodies 15, 15 forms a mesh. The mesh is formed to be smaller than the individual blades 31a of the rotating blades 31, so that even if the blades 31a are damaged, they will not pass through the blower cover 10 and fall downward.

[0033] The first guard bodies 14, 14 and the second guard bodies 15, 15 are formed so that the guard thickness, which is the length from the front side to the back side, is thicker than the guard width, which is the circumferential length.In other words, the thickness is longer than the width, so that the blower cover 10 can provide solid protection in the event that the blade body 31a is damaged or the rotating blade 31 falls (see Figures 5(b) and (c)).

[0034] In addition, the second guard bodies 15, 15 are formed to be inclined in the thickness direction (from the back side to the front side) along the rotation direction Z1. Specifically, since the blower unit 30 of this embodiment rotates at an angle while the rotary vanes 31 rotate, the second guard bodies 15, 15 are inclined along the direction of the inclined rotation (the direction of the arrow line Z1) so as not to obstruct the blowing of air over a wide area (see FIG. 5(c)).

[0035] As described above, the fan-equipped lighting device 1 of this embodiment functions not only as an indoor lighting device but also as a circulator by rotating the rotating blades 31 while tilting in a circumferential direction, thereby enabling air circulation over a wide area.

[0036] Furthermore, there are wide open areas K, K between the multiple lighting support parts 41a, 41a surrounding the periphery of the air blower 30, which improves air circulation, and the front side of the air blower 30 (the lower side when installed on a ceiling) is equipped with an air blower cover 10, and the mesh of the air blower guard is smaller than the blade body, which prevents the blade body from falling downwards if it is damaged, etc., and makes it possible to provide a fan-equipped lighting device 1 that is highly safe.

[0037] In addition, a part of the guard body forming the mesh of the ventilation cover 10 has a guard thickness, which is the length from the front side to the back side, longer than the guard width, which is the circumferential length, so that the fan-equipped lighting device 1 is resistant to impacts from the front side to the back side and highly safe.

[0038] Furthermore, part of the guard body that forms the mesh of the ventilation cover 10 is inclined from the front side to the back side along the rotation direction (Z1) in which it rotates at an angle, making it possible to provide a fan-equipped lighting device 1 that ensures safety without interfering with the wide-area ventilation provided by the ventilation section 30 and also has high ventilation performance. [Explanation of symbols]

[0039] 1...Fan-equipped lighting fixture, 10...ventilation cover, 11...periphery frame, 12...center part, 13...intermediate frame, 14...first guard body, 15...second guard body, 20... lighting portion, 21... lighting base portion, 21a... central protrusion portion, 22...light-emitting part, 23...lighting cover, 30...blowing section, 31...rotating blade, 31a...blade body, 32...first motor box, 33...first motor, 34...engagement ring, 35... second motor box, 36... second motor, 36a... rotating shaft, 40...base portion, 41...base substrate, 41a...illumination support portion, 42...contact portion, 43...connecting fitting. C1: Center point of the air blower cover, C2: Center point of the rotor blades, K...Open part, X1: direction from the center point of the first motor box to the front side, X2: Direction from the center point of the second motor box to the front side, Z1...Rotation direction, Z2...Pivot direction.

Claims

1. In a fan-equipped illuminator consisting of a circular lighting unit with a central air blower, The fan-equipped lighting device is characterized in that the blower unit has a first motor that rotates a rotating blade having a plurality of blade bodies in a circumferential direction while being tilted from the front side, and a second motor that rotates the rotating blade.

2. The fan-equipped lighting fixture according to claim 1, characterized in that the ventilation cover, which is arranged at the center of the front side of the annular lighting unit, has a mesh shape with smaller mesh than the blade body and is inclined from the center to the outer frame.

3. The fan-equipped lighting fixture according to claim 2, characterized in that the ventilation cover is formed so that the guard thickness, which is the length from the front side to the back side, is longer than the guard width, which is the circumferential length of the part of the guard body that forms the mesh.

4. 4. The fan-equipped lighting device according to claim 3, wherein a portion of the guard body forming the mesh of the ventilation cover is inclined from the front side to the back side along the rotation direction in which the ventilation section rotates at an angle.

5. The rotating blades of the air blower are located within the vertical width of the circular lighting unit.

5. The fan-equipped illuminator according to claim 1, wherein the lighting unit is supported on a base by a plurality of arm-shaped lighting support parts, and an opening is formed between the plurality of lighting support parts.

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