JP7027962B2 - lighting equipment - Google Patents

Description

The present invention relates to a lighting fixture.

Patent Document 1 discloses a lighting device that allows a user to selectively add a function by connecting a function adding device to the LED unit.

Japanese Unexamined Patent Publication No. 2014-220162

In Patent Document 1, the LED unit is provided with a first connection portion which is a connector. Further, the function addition device is provided with a second connection portion which is a connector. The second connection is connected to the first connection. At this time, since the connectors are directly connected to each other or connected by a cable, the arrangement of the function addition device or the structure of the lighting device may be restricted. Further, when the connectors are connected by a cable, it may take time and effort to attach the function addition device and connect the cable.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to obtain a lighting fixture capable of improving the degree of freedom in mounting a control unit.

The lighting equipment according to the present invention has a light source, a power transmission coil that generates an AC magnetic field, a lighting device that lights the light source, a housing that houses the lighting device, and generates a voltage according to the AC magnetic field. A control unit having a power receiving coil to be operated and operating by a voltage generated in the power receiving coil is provided, the control unit is attached to the housing, the housing houses the lighting device, and the light source is used. It has a storage part to be attached, a main part provided on both sides of the storage part and formed of a metal plate, and a part sandwiched between the lighting device and the control unit and formed of a non-conducting material. To.

In the lighting fixture according to the present invention, power is supplied from the lighting device to the control unit attached to the housing in a non-contact manner. Therefore, it is not necessary to directly connect the lighting device and the control unit or connect them via wiring. Therefore, the degree of freedom in mounting the control unit can be improved.

It is a perspective view of the lighting equipment which concerns on Embodiment 1. FIG. It is a figure which shows the state which removed the control unit from the housing which concerns on Embodiment 1. FIG. It is a figure which shows the state which removed the light source unit from the housing which concerns on Embodiment 1. FIG. It is sectional drawing of the lighting equipment which concerns on Embodiment 1. FIG. It is sectional drawing of the light source unit which concerns on Embodiment 1. FIG. It is a figure which shows the state which removed the translucent cover from the light source unit which concerns on Embodiment 1. FIG. It is a circuit block diagram of the lighting fixture which concerns on Embodiment 1. FIG. It is a circuit block diagram of the control unit which concerns on Embodiment 1. FIG. It is a perspective view of the lighting equipment which concerns on the modification of Embodiment 1. FIG.

The lighting equipment according to the embodiment of the present invention will be described with reference to the drawings. The same or corresponding components may be designated by the same reference numerals and the description may be omitted.

Embodiment 1.
FIG. 1 is a perspective view of the lighting fixture 1 according to the first embodiment. FIG. 1 is a perspective view of the lighting fixture 1 as viewed from below when the lighting fixture 1 is installed on a mounted portion such as a ceiling. The luminaire 1 includes a light source unit 10, a housing 5, and a control unit 3.

The light source unit 10 includes a light source. The housing 5 is an instrument body that is attached to the attached portion. A light source unit 10 is attached to the housing 5. The housing 5 houses a lighting device that lights a light source. Further, the control unit 3 is attached to the housing 5. The control unit 3 is supplied with electric power from the light source unit 10.

The housing 5 has a main portion 5a extending from a portion to which the light source unit 10 is attached to both sides of the lighting fixture 1 in the lateral direction. The main portion 5a is formed of, for example, a metal plate. The housing 5 is formed by, for example, bending a metal plate. The housing 5 may be formed of one metal plate, or may be formed by combining a plurality of metal plates. Ends 5b are provided at both ends of the main portion 5a in the longitudinal direction.

FIG. 2 is a diagram showing a state in which the control unit 3 is removed from the housing 5 according to the first embodiment. The housing 5 has a recess 5d. The recess 5d is provided in the main portion 5a. The recess 5d is a mounting portion where the control unit 3 is arranged. The control unit 3 is attached to the recess 5d. The recess 5d is provided with a fixing portion (not shown) for fixing the control unit 3. The control unit 3 is exposed from the housing 5 in a state of being attached to the recess 5d of the housing 5.

The recess 5d has an opening that opens in the light emitting direction of the light source unit 10. The control unit 3 is attached to the recess 5d from the opening as shown by the arrow in FIG. The control unit 3 may be attached to the recess 5d from below, or may be inserted horizontally into the recess 5d.

FIG. 3 is a diagram showing a state in which the light source unit 10 is removed from the housing 5 according to the first embodiment. The light source unit 10 has a translucent cover 14 and a lighting device 2. The light source is covered with a translucent cover 14. Further, the housing 5 has a storage portion 5c. The storage portion 5c is formed of a metal plate.

FIG. 4 is a cross-sectional view of the lighting fixture 1 according to the first embodiment. FIG. 4 is a cross-sectional view of the lighting fixture 1 in the lateral direction. A light source unit 10 is attached to the storage portion 5c. With the light source unit 10 attached to the housing 5, the storage unit 5c stores the lighting device 2. The lighting device 2 is covered with a housing 5.

The main portion 5a is provided on both sides of the storage portion 5c. The main portion 5a has a slope inclined toward the attached portion. The housing 5 becomes thinner as the distance from the light source unit 10 increases.

In the housing 5, the recess 5d is adjacent to the storage portion 5c. The space for accommodating the control unit 3 formed by the recess 5d and the space for accommodating the lighting device 2 formed by the accommodating portion 5c are separated by the side wall 4 of the housing 5 forming the recess 5d. The lighting device 2 is provided at a position adjacent to the side wall 4. The control unit 3 is provided at a position adjacent to the side wall 4. The control unit 3 is adjacent to the lighting device 2 with the side wall 4 interposed therebetween.

The lighting device 2 has a power transmission coil that generates an AC magnetic field. The power transmission coil is provided adjacent to the side wall 4. The power transmission coil is a power transmission side coil in non-contact power feeding. Further, the control unit 3 has a power receiving coil that generates a voltage according to an AC magnetic field generated by the power transmission coil. The power receiving coil is provided so as to be adjacent to the side wall 4. The power receiving coil is a power receiving side coil in non-contact power supply. The control unit 3 operates by the voltage generated in the power receiving coil. The power transmission coil and the power reception coil are adjacent to each other with the side wall 4 interposed therebetween.

The side wall 4 is formed of a non-conducting material. The non-conducting material is, for example, resin or glass. In the present embodiment, the housing 5 has a main portion 5a formed of a metal plate, and a portion sandwiched between the lighting device 2 and the control unit 3 and formed of a non-conducting material. As a result, non-contact power supply using magnetism can be performed from the lighting device 2 inside the housing 5 made of a metal plate to the control unit 3 outside the housing 5.

The outer shell of the lighting device 2 located between the power transmission coil and the side wall 4 is preferably formed of a non-conducting material such as resin. Further, it is preferable that the outer shell of the control unit 3 located between the power receiving coil and the side wall 4 is formed of a non-conducting material such as resin. In the present embodiment, the power receiving coil and the power transmitting coil are adjacent to each other with the non-conducting material interposed therebetween. As described above, since the member provided between the power transmission coil and the power reception coil is formed of the non-conducting material, non-contact power feeding and communication using magnetism can be efficiently performed.

FIG. 5 is a cross-sectional view of the light source unit 10 according to the first embodiment. FIG. 5 is a cross-sectional view of the light source unit 10 in the longitudinal direction. FIG. 6 is a diagram showing a state in which the translucent cover 14 is removed from the light source unit 10 according to the first embodiment. The light source unit 10 includes a base 12, a lighting device 2, a substrate 13, a light source 11, and a translucent cover 14. The lighting device 2 is attached to one surface of the base 12. The substrate 13 is attached to the other surface of the base 12. A plurality of light sources 11 are mounted on the surface of the substrate 13 opposite to the base 12. The translucent cover 14 is attached to the base 12 so as to cover the substrate 13 and the plurality of light sources 11.

The light source 11 is a semiconductor light source such as an LED element. The light source 11 may be an organic EL (Electro-Lumisensence). The light source unit 10 may have one or more light sources 11. Further, the plurality of light sources 11 may be connected in series, parallel or series-parallel.

In FIGS. 5 and 6, the position of the power transmission coil 6 is shown by a dotted line. The power transmission coil 6 is provided at the end of the lighting device 2, for example, adjacent to the side wall 4. The power transmission coil 6 may be arranged in the vicinity of the outer shell of the control unit 3.

FIG. 7 is a circuit block diagram of the lighting fixture 1 according to the first embodiment. In FIG. 7, the control unit 3 is omitted. The lighting device 2 includes a first power supply unit 21, a second power supply unit 22, a first control unit 23, and a power transmission coil 6. The first power supply unit 21 is supplied with electric power from the external power supply AC to light the light source 11. The external power supply AC is, for example, a commercial power supply, and supplies an AC voltage to the lighting device 2. The external power supply AC may be a DC power supply.

The second power supply unit 22 is supplied with electric power from, for example, the first power supply unit 21 to generate an AC voltage. The power transmission coil 6 is applied with an AC voltage generated by the second power supply unit 22 to generate an AC magnetic field.

The first control unit 23 controls the first power supply unit 21 and the second power supply unit 22. The first control unit 23 adjusts the output power of the first power supply unit 21 and the second power supply unit 22 by controlling the on / off of the switching elements of the first power supply unit 21 and the second power supply unit 22, for example. The first control unit 23 has a communication terminal IN connected to the power transmission coil 6 via the second power supply unit 22.

The lighting device 2 is not limited to this, and may have at least a function of lighting the light source 11 and supplying power from the power transmission coil 6 to an external device such as the control unit 3. For example, the first power supply unit 21 and the second power supply unit 22 may be integrated.

FIG. 8 is a circuit block diagram of the control unit 3 according to the first embodiment. The control unit 3 is, for example, a wireless communication device. The control unit 3 includes a power receiving coil 31, a third power supply unit 32, a second control unit 33, and a wireless communication unit 34. The power receiving coil 31 is provided at an end of the control unit 3 adjacent to, for example, the side wall 4. The power receiving coil 31 may be arranged in the vicinity of the outer shell of the control unit 3.

When an AC voltage is applied to the power transmission coil 6, a voltage is generated in the power reception coil 31 by electromagnetic induction. The power receiving coil 31 converts the AC magnetic field generated by the power transmission coil 6 into a voltage. The third power supply unit 32 is supplied with the voltage generated in the power receiving coil 31 to operate the second control unit 33. The third power supply unit 32 may supply the voltage generated in the power receiving coil 31 to the second control unit 33 after voltage conversion, rectification, or smoothing. The second control unit 33 operates by the voltage generated in the power receiving coil 31. The second control unit 33 is connected to the wireless communication unit 34. As described above, in the present embodiment, the control unit 3 is non-contactly fed from the lighting device 2.

The wireless communication unit 34 receives a signal wirelessly from the outside. The signal received by the wireless communication unit 34 is, for example, a dimming signal that determines the lighting state of the light source 11. The wireless communication unit 34 transmits a communication signal corresponding to the received signal to the second control unit 33. The second control unit 33 transmits a communication signal from the power receiving coil 31 to the power transmission coil 6 via the third power supply unit 32. The second control unit 33 transmits a communication signal by, for example, controlling the third power supply unit 32 to adjust the impedance of the power receiving coil 31 or the AC magnetic field generated in the power receiving coil 31.

In this way, the control unit 3 transmits a communication signal from the power receiving coil 31 to the power transmission coil 6. As shown in FIG. 7, the lighting device 2 has a communication terminal IN for receiving a communication signal from the control unit 3. The communication signal is received by the power transmission coil 6 and is input to the first control unit 23 from the communication terminal IN via the second power supply unit 22. The first control unit 23 brightens or darkens the light source 11 according to the communication signal. Further, the lighting device 2 may turn on or off the light source 11 according to the communication signal.

In the present embodiment, power is supplied from the lighting device 2 to the control unit 3 in a non-contact manner. Further, the lighting device 2 and the control unit 3 communicate with each other in a non-contact manner. Therefore, it is possible to reduce the number of power lines and communication lines between the lighting device 2 and the control unit 3. In the present embodiment, since it is not necessary to directly connect the lighting device 2 and the control unit 3 or connect them via wiring, the degree of freedom in mounting the control unit 3 can be improved.

Further, since the structure for passing the wiring between the lighting device 2 and the control unit 3 is not required, the structure of the lighting fixture 1 can be simplified. Further, since it is not necessary to connect a cable when attaching the control unit 3, the control unit 3 can be easily attached.

Further, since the side wall 4 is formed of the non-conducting material, the control unit 3 can be arranged outside the housing 5. In the present embodiment, the control unit 3 can be arranged inside or outside the housing 5, and the degree of freedom in mounting the control unit 3 can be further improved.

Further, in the present embodiment, the control unit 3 can be attached from the outside of the housing 5. Therefore, for example, even when the control unit 3 is added after the lighting fixture 1 is attached to the ceiling or the like, it is not necessary to remove the light source unit 10 from the housing 5 and install the control unit 3 inside the housing 5. Therefore, the function of the lighting fixture 1 can be easily expanded.

Further, in the present embodiment, the control unit 3 is exposed from the housing 5. Therefore, the sensitivity of wireless communication can be improved. Further, the control unit 3 is provided on the light source 11 side with respect to the attached portion such as the ceiling. Therefore, it is possible to prevent the wireless communication from being hindered by the attached portion.

As a modification of the present embodiment, the control unit 3 is not limited to the wireless communication device, and may be any device that operates by the voltage generated in the power receiving coil 31. The control unit 3 may be, for example, a motion sensor. In this case, the control unit 3 includes a sensor element. Further, the control unit 3 and the lighting device 2 may communicate with each other by a route different from that of the non-contact power supply. Further, a signal may be transmitted from the lighting device 2 to the control unit 3. Further, the control unit 3 does not have to communicate with the lighting device 2.

Further, although the luminaire 1 of the present embodiment has a long shape, the shape of the luminaire 1 is not limited to this. For example, the luminaire 1 may be a square, a polygon, a circle, an ellipse, or the like in a plan view. Further, the surface of the main portion 5a may not be inclined and may extend in parallel with the attached portion. As the structure of the lighting fixture 1, any structure in which the control unit 3 is attached to the housing 5 for accommodating the lighting device 2 can be adopted. For example, the housing 5 may be cylindrical.

Further, in the present embodiment, the openings of the side wall 4 and the recess 5d are rectangular. As an example of this modification, the shape of the opening of the side wall 4 and the recess 5d may be an ellipse, a polygon, a plurality of ellipses, or a combination of a plurality of polygons. The ellipse includes a circle. Polygons include triangles and quadrilaterals. Further, the recess 5d may not be provided in the main portion 5a, and may be provided in the end portion 5b, for example. As the structure of the recess 5d, any structure to which the control unit 3 can be attached from the outside of the housing 5 can be adopted.

Further, in the present embodiment, the opening of the recess 5d faces a direction inclined with respect to the optical axis of the light source 11. The optical axis of the light source 11 is in the direction perpendicular to the attached portion. Not limited to this, the opening of the recess 5d may be oriented in a direction parallel to the optical axis of the light source 11 or may be oriented in a direction perpendicular to the optical axis of the light source 11.

Further, the portion of the housing 5 to which the control unit 3 is attached does not have to be the recess 5d. The control unit 3 may be attached to the side surface of the housing 5, for example.

Further, in the present embodiment, the control unit 3 is a rectangular parallelepiped. The control unit 3 may have a shape other than a rectangular parallelepiped as long as the power receiving coil 31 can be arranged adjacent to the side wall 4.

Further, the lighting device 2 and the control unit 3 do not have to be adjacent to each other as long as the non-contact power supply is possible. Further, the side wall 4 may not be formed of a non-conducting material as long as the non-contact power supply from the lighting device 2 to the control unit 3 is possible.

Further, in the present embodiment, the portion of the housing 5 other than the side wall 4 is formed of a metal plate. Not limited to this, a part or all of the portion of the housing 5 other than the side wall 4 may be formed of a member other than the metal plate.

FIG. 9 is a perspective view of the lighting fixture 201 according to the modified example of the first embodiment. In the luminaire 201, a fixing portion 5e is provided in the recess 5d. The fixed portion 5e is a rail. The fixing portion 5e is provided on the side surface of the recess 5d adjacent to the side wall 4. Further, a groove 203e is provided on the side surface of the control unit 203 facing the fixed portion 5e. The control unit 203 is slid toward the side wall 4. As a result, the fixed portion 5e, which is a rail, enters the groove 203e, and the control unit 203 is attached to the recess 5d.

In the luminaire 201, the fixing portion 5e is provided in a portion of the recess 5d other than the side wall 4. Therefore, the control unit 203 can be brought close to the side wall 4. Therefore, the efficiency of non-contact power supply and communication between the control unit 203 and the lighting device 2 can be improved.

The method of attaching the control unit 203 to the housing 5 is not limited to this. For example, the control unit 203 may be provided with a rail, and the recess 5d may be provided with a groove. Further, hooking claws may be provided on each of the housing 5 or the side wall 4 and the control unit 203, and the hooking claws may be engaged with each other. Further, the control unit 203 may be provided with a magnet on the outer shell and may be attached to a metal portion provided on a part of the housing 5 or the side wall 4 by the magnetic force of the magnet. The control unit 203 may be provided with magnets at both ends, and may be attached to the side surfaces of the side wall 4 of the recess 5d by the magnetic force of the magnets.

Further, an opening or a groove may be provided in the housing 5 or the side wall 4, and the hook claw of the control unit 203 may be hooked on the opening or the groove. Alternatively, the control unit 203 may be provided with an opening or a groove, and the hook claw provided on the housing 5 or the side wall 4 may be hooked on the opening or the groove. Not limited to these examples, the control unit 203 may be attached to the housing 5.

The technical features described in this embodiment may be used in combination as appropriate.

1,201 Lighting equipment, 2 Lighting device, 3,203 Control unit, 203e groove, 4 side wall, 5 housing, 5a main part, 5b end part, 5c storage part, 5d recess, 5e fixing part, 6 power transmission coil, 10 Light source unit, 11 light source, 12 base, 13 board, 14 translucent cover, 21 1st power supply unit, 22 2nd power supply unit, 23 1st control unit, 31 power receiving coil, 32 3rd power supply unit, 33 2nd control Department, 34 Wireless communication department

Claims (11)

Light source and
A lighting device that has a power transmission coil that generates an AC magnetic field and lights the light source,
A housing for accommodating the lighting device and
A control unit having a power receiving coil that generates a voltage in response to the AC magnetic field and operating by the voltage generated in the power receiving coil.
Equipped with
The control unit is attached to the housing and
The housing is
A storage unit that stores the lighting device and to which the light source is attached,
A main portion provided on both sides of the storage portion and formed of a metal plate, and a main portion.
A portion sandwiched between the lighting device and the control unit and formed of a non-conducting material,
A lighting fixture characterized by having . The housing has a recess and
The luminaire according to claim 1, wherein the control unit is attached to the recess and is adjacent to the lighting device across a side wall of the housing forming the recess. The luminaire according to claim 2, wherein the recess is provided in the main portion. The luminaire according to claim 2 or 3, wherein the side wall is formed of a non-conducting material. The lighting fixture according to claim 4, wherein the non-conducting material is resin or glass. Any one of claims 2 to 5, wherein the shape of the opening of the side wall and the recess is an ellipse, a polygon, a plurality of ellipses, and a combination of a plurality of polygons. Lighting equipment as described in the section. A fixing portion for fixing the control unit is provided in the recess.
The lighting fixture according to any one of claims 2 to 6, wherein the fixing portion is provided in a portion of the recess other than the side wall. The luminaire according to any one of claims 1 to 7, wherein the power receiving coil and the power transmitting coil are adjacent to each other with a non-conducting material interposed therebetween. The lighting fixture according to any one of claims 1 to 8, wherein the control unit is exposed from the housing while being attached to the housing. The luminaire according to any one of claims 1 to 9 , wherein the control unit transmits a communication signal from the power receiving coil to the power transmission coil. The lighting device according to any one of claims 1 to 10, wherein the lighting device has a communication terminal for receiving a communication signal from the control unit.

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