JP7617624B2 - Lighting fixtures - Google Patents

Description

The present invention relates to lighting fixtures such as ceiling lights that use light-emitting elements such as LEDs, which can be used as normal lighting fixtures under normal circumstances and as disaster prevention lighting fixtures in emergencies.

In general, lighting fixtures such as ceiling lights that use light-emitting elements such as LEDs are widely used in general buildings such as ordinary detached houses and apartment buildings. Lighting fixtures such as ceiling lights are usually supplied with commercial power from a fixture (wiring device) installed on the ceiling (the fixture mounting surface), and can be turned on/off by using a wall switch or by operating the buttons on a remote controller (remote control) that comes with the lighting fixture.

If a natural disaster such as an earthquake or typhoon occurs, or if a power generation facility malfunctions and the commercial power supply is cut off, or if an overcurrent occurs in the home and the safety breaker trips, cutting off the power supply, a power outage will occur and the lighting fixtures will suddenly go out. In particular, if a power outage occurs at night, you will have to search for flashlights, lanterns, and candles in the dark, and if the safety breaker trips, you will have to search for the switch on the distribution board.
In such cases, if the lighting fixtures installed on the ceiling were equipped with disaster prevention (emergency) lighting devices that could be turned on in an emergency, people would not have to search for a flashlight or the like in the sudden darkness, which would reduce their anxiety.

As a countermeasure against sudden power outages, lighting fixtures equipped with an emergency power source (battery) that turns on in an emergency are known. When this lighting fixture detects a power outage, it turns on using power supplied from the emergency power source (battery) and serves as an emergency light (Patent Document 1).

Japanese Patent Application Publication No. 10-92586

Patent Document 1 describes a lighting fixture that is installed on the ceiling, which has a battery inside the lighting fixture and a remote control transmitter that transmits a power outage detection signal in the event of a commercial power outage, which is set and kept connected to a power outlet at all times.In the event of a power outage, the lighting fixture is turned on by the power outage detection signal transmitted from the remote control transmitter.
However, this lighting fixture requires the remote control transmitter to be set and always connected to a power outlet. Furthermore, because this lighting fixture is a round ceiling light that uses a fluorescent lamp, it requires more power than light-emitting elements such as LEDs, and the lighting time is short, so in order to ensure a certain level of lighting time, it is necessary to have a large-capacity battery.

In order to solve the problems of the prior art documents, the present invention provides a lighting fixture such as a ceiling light that uses an LED as a light source, which has a power outage detection function, a battery holder is attached inside the lighting fixture, and a battery is placed in the battery holder so that it can be attached and detached. In a simple manner, the lighting fixture functions as a lighting fixture under normal circumstances, and as a disaster prevention light (emergency light) that turns on for a certain period of time in an emergency.

In order to achieve the above object, the lighting fixture according to the present invention comprises a flat body, a light source arranged on the front side of the body and consisting of a board on which multiple LEDs are mounted, a power supply board arranged on the light source, a battery that supplies power to the light source, a battery holder attached to the body and holding the battery so that it can be attached and detached, and a shade that covers the front side of the body, the battery holder having an annular portion and legs that hold the battery on the underside of the annular portion, and the power supply board normally supplies power to the light source and the battery, and in the event of a power outage, supplies power from the battery to the light source.

According to this invention, a battery is placed inside a lighting fixture that is attached to a mounting fixture (wiring device) installed on the ceiling (mounting section), and the lighting fixture can be turned on using power supplied from the battery during a power outage, allowing the lighting fixture to function as a disaster prevention light that can be turned on for a certain period of time without the need for special construction work.

1 is a side view showing a lighting fixture according to an embodiment. 1 is a front view showing a state in which a shade is removed from a lighting fixture according to an embodiment. FIG. 1 is a rear view showing a state in which the shade is removed from the lighting fixture according to the embodiment. FIG. 1 is a perspective view showing a state in which a shade is removed from a lighting fixture according to an embodiment. FIG. FIG. 2A is a side view showing a main body and a light source according to an embodiment, and FIG. FIG. 2 is a side view of a main body according to the embodiment. FIG. 2 is a front view of a main body according to the embodiment. FIG. 4 is a rear view of the main body according to the embodiment. 1A is a side view of an LED light source cover according to an embodiment, FIG. 1B is a plan view of the same, and FIG. 3A is a side view of a battery holder according to an embodiment, FIG. 3B is a top view of the same, FIG. 3C is a bottom view of the same, and FIG. 1A is a side view of a battery according to an embodiment, FIG. 1B is a top view, FIG. 1A is a side view showing a state in which a battery according to an embodiment is attached to a battery holder, FIG. 1B is a top view of the same, and FIG. 1A is a side view of a mounting adapter according to an embodiment, FIG. 1B is a top view of the same, FIG. 5A is a cross-sectional view taken along line AA of the lighting fixture shown in FIG. 4, and FIG. 5B is a side view of the same. FIG. 2 is a schematic explanatory diagram showing a circuit configuration of a lighting fixture according to an embodiment. 1A is a front view of a wall switch cover according to an embodiment, and FIG. 1B is a perspective view of a remote controller according to an embodiment.

To facilitate understanding of the present invention, an example of a lighting fixture 1 according to an embodiment of the present invention will be described with reference to Figs. 1 to 16. The lighting fixture 1 according to the embodiment of the present invention is generally called an LED ceiling light, and is a lighting fixture that is attached to a ceiling when used.

It should be noted that the embodiment described below shows one specific example of the present invention, and therefore the arrangement, functions, numerical values, etc. of the components described in the embodiment are merely examples, and should not be construed as limiting the scope of the present invention.
In addition, some of the components that make up the lighting fixture 1, such as wiring, are omitted in order to avoid complicating the drawing.

(Embodiment)
FIG. 1 is a side view showing a lighting fixture 1 according to an embodiment of the present invention, FIG. 2 is a plan view showing the lighting fixture 1 according to the embodiment with a shade 90 removed, FIG. 3 is a rear view of the same, and FIG. 4 is a perspective view of the same.

In a typical home, a fixture 2 called a hook-on ceiling rosette, hook-on ceiling body, hook-on ceiling, hook-on rosette, etc. is attached to the ceiling 9 for mounting a ceiling light, etc. The fixture 2 outputs commercial power and connects to the lighting fixture 1.

As shown in FIG. 1, the lighting fixture 1 according to the embodiment has a light source 30 attached to the front side of the main body 10, and the light source 30 and the entire front part of the main body 10 are covered by a shade 90. The main body 10 is supported by a mounting fixture 2 on the installation location (fixture mounting surface) of the lighting fixture 1, such as a ceiling 9. The light source 30 is a component that emits light in the lighting fixture 1, and is also called a light source module, light source unit, etc.

In addition, in the lighting fixture 1 of the present invention, the shade 90 is optional and is not necessarily required. In that case, the holding portion 14 formed on the main body 10 is not necessary.

The light source 30 is arranged in the main body 10 so as to surround the central opening 13. Figure 2 shows the main body 10, which is circular, the LED light source cover 31, and the battery 70 attached to the main body 10. The bottom of the battery 70 is provided with a USB terminal 71 that is used for external power supply and discharging to a USB device, etc.

The main body 10 is formed from a substantially circular flat plate with an opening 13 in the center. As shown in FIG. 3, a mounting adapter 3 is attached to the back surface (rear side) of the main body 10 in a state where it is fitted into the opening 13. A protrusion 18 is also formed on the rear side of the main body 10. FIG. 4 shows a light source 30 arranged on the front side of the main body 10 and a battery 70 attached to the opening 13 of the main body 10 provided near the center.

Figure 5 (A) is a side view showing the main body 10 and light source 30 according to the embodiment, and Figure 5 (B) is a perspective view.

Figure 5 (A) shows the main body 10 and the light source 30 arranged on the front side of the main body 10.

In FIG. 5(B), an opening is provided in the center of the annular light source 30 that communicates with the opening 13 of the main body 10. The annular light source 30 with the opening 13 in the center and the annular main body 10 that is slightly larger than the light source 30 are shown.

Figure 6 is a side view of the main body 10 according to the embodiment, Figure 7 is a front view, and Figure 8 is a rear view.

As shown in FIG. 6, the main body 10 has a shape in which a trapezoidal convex portion 18 is formed on a flat portion 11. Here, when the lighting fixture 1 is installed on the ceiling 9, the side of the lighting fixture 1 facing the ceiling 9 is referred to as the back side, and the side facing the floor surface where light is emitted from the light source 30 is referred to as the front side.

As shown in FIG. 7, the main body 10 has annular steps 16A and 16B formed along the circumferential direction on the outside of the opening 13. The inner step 16B forms a side of a truncated cone that is convex on the front side as a whole, and the outer step 16A forms an annular flat surface 11 on the outer periphery of the main body 10. In addition, a convex portion 18 that is convex on the back side is formed in an annular shape between the inner step 16B and the outer step 16A. The light source 30 is placed in the convex portion 18 and positioned by the positioning portion 17, and is screwed to the main body 10 by a plurality of holes 15 and 20 drilled in the flat surface 11 formed around the main body 10 and the flat surface 21 formed around the opening 13.

As shown in FIG. 8, the rear side of the main body 10 is formed with a bottom surface portion 12 (convex portion 18) that is convex toward the front, and an edge portion 19 is formed on the outermost periphery of the main body 10.

Figure 9 (A) is a side view of the LED light source cover 31 according to the embodiment, Figure 9 (B) is a plan view, and Figure 9 (C) is a perspective view.

The LED light source cover 31 is located on the front side of the light source 30, and is made of acrylic resin, polycarbonate resin, or the like, which has diffusive properties and eliminates the graininess caused by the light emitted from the LEDs 41 built into the light source 30 and mounted on the LED board (LED substrate) 40, eliminating the need for anti-glare properties, while also illuminating a wide surface evenly.

As shown in FIG. 9(B), the LED light source cover 31 is an annular member having an opening 13 in the center. A flat plate portion 34 is formed around the opening 13 along the opening 13. The flat plate portion 34 is provided with two opposing holes 33 and an opening 39 through which an electric wire for supplying power passes, and a connection terminal 39A for connecting to the end of the electric wire is disposed within the opening 39. A number of notches 37 and holes 38 are formed in the edge portion 32 of the outer periphery of the LED light source cover 31, and the cover is fixed to the main body 10 by screws passing through the notches 37 and holes 38.

The shade 90 shown in FIG. 1 is detachably attached so as to cover the entire front portion of the LED light source cover 31 and the main body 10. The shade 90 is made of a translucent acrylic resin or polycarbonate resin with a diffusive property such as milky white, and is formed in a hollow circular shape with an opening on one side. The shade 90 is also called a globe or the like, and is a member that has the function of efficiently diffusing the light emitted from the light source 30. A holding portion 14 is provided on the flat portion 11 of the main body 10, and the edge of the shade 90 engages with the holding portion 14 of the main body 10, so that the shade 90 is detachably held on the main body 10. As described above, the shade 90 is an optional member.

Figure 10 (A) is a side view of the battery holder 80 according to the embodiment, Figure 10 (B) is a top view, Figure 10 (C) is a bottom view, and Figure 10 (D) is a perspective view.

The battery holder 80 is attached to the main body 10 and holds the freely attachable battery 70. It has a circular annular portion 82 and a cylindrical fastening boss 83 with a slightly tapered side provided on the upper surface of the annular portion. The fastening bosses 83 are positioned opposite each other on the surface of the annular portion 82. A pair of legs 81 are fixed to the lower surface of the annular portion 82 adjacent to the hole 84 and perpendicular to the lower surface of the annular portion 82. The tip of the leg 81 is formed in an L-shape toward the inside of the annular portion. In addition, a pair of cutouts 85 are formed in the annular portion 82.

The battery holder 80, the LED light source cover 31 and the main body 10 are screwed together by inserting the screw through the hole 84 of the co-tightening boss 83, the hole 33 of the LED light source cover 31 and the hole 20 of the main body 10.

Figure 11 (A) is a side view of the battery 70 according to the embodiment, Figure 11 (B) is a top view, Figure 11 (C) is a bottom view, and Figure 11 (D) is a perspective view.

The battery 70 has a two-stage shape consisting of a disk-shaped upper stage 77 and a disk-shaped lower stage 78 that is larger than the upper stage 77. The upper stage 77 has two grooves 73 that face each other on its side. The groove 73 has a fitting portion 74 with a recess that fits from the top to the bottom on the side of the upper stage 77, and a fixing portion 75 that is recessed along the side. A protrusion 76 is provided between the fitting portion 74 and the fixing portion 75.

A pigtail cable 79 with a power terminal at its tip extends from the side of the upper section 77 of the battery 70. As shown in FIG. 11(C), a USB terminal 71 and an indicator 72C that shows the usage status of the battery 70 are provided on the bottom surface of the lower section 78 of the battery 70.

Figure 12(A) is a side view showing the battery 70 according to the embodiment attached to the battery holder 80, Figure 12(B) is a top view, and Figure 12(C) is a perspective view.

The battery 70 is removably attached to the battery holder 80. Specifically, the fitting portion 74 of the battery 70 is fitted to a pair of legs 81 of the battery holder 80 attached to the main body 10, the legs 81 are placed on the upper surface of the lower part 78 of the battery 70, and the battery 70 is rotated counterclockwise as viewed from above, so that the tip of the legs 81 moves along the fixing portion 75 of the battery 70 and is fixed. The fixing portion 75 is provided with a protrusion 76, so that the legs 81 are fixed so that they do not come off the battery holder 80. When removing the battery 70 from the battery holder 80, the battery 70 can be easily removed by lifting it up and rotating it clockwise.

By adding a light source such as an LED to the battery 70, it can be removed and used as a flashlight, or the DC power output from the USB terminal 71 can be used as an emergency power source for charging a mobile phone, etc.
In addition, since the battery 70 is a commercially available battery, it can be purchased at a low price and multiple batteries can be owned as spares. By owning multiple batteries 70, the lighting fixture 1 can be expected to light for an even longer period of time, providing peace of mind during a power outage.

Figure 13 (A) is a side view of the mounting adapter 3 according to the embodiment, Figure 13 (B) is a top view, Figure 13 (C) is a bottom view, and Figure 13 (D) is a perspective view.

The mounting adapter 3 is a member with a circular cross section and has a pair of hooks 6 on the top surface, a pair of claws 5 on the side surface, and a pair of release levers 4 on the bottom surface. The hooks 6 of the mounting adapter 3 fit into a pair of engagement grooves in the mounting fixture 2 arranged on the ceiling 9, respectively, to mechanically connect them and also electrically connect them to a commercial power source.

As shown in Fig. 1 and Fig. 14 (A), the mounting fixture 2 is a member for mounting the main body 10 to the installation location of the lighting fixture 1. The mounting fixture 2 is also a member called a ceiling hook, ceiling hook body, etc.

The claw 5 is a member for removing the mounting adapter 3 from the attachment 2. By pinching the release lever 4 with your fingers and pulling it inward, the claw 5 moves toward the center of the mounting adapter 3 and rotates the mounting adapter 3 horizontally, allowing the mounting adapter 3 to be removed from the attachment 2.

Figure 14 (A) is a cross-sectional perspective view of the lighting fixture 1 shown in Figure 4 taken along line A-A, and Figure 14 (B) is a side view of the main parts.

The structure of the main body 10 and the light source 30 will be described below with reference to cross-sectional views. Note that in Figure 14 and other figures, components such as the LED board 40 are depicted as schematic cross-sectional views, and hatching representing the cross-section and the internal structure are omitted.

Figures 14 (A) and (B) are both cross-sectional views of the lighting fixture 1 shown in Figure 4 taken along line A-A, showing the lighting fixture 1 installed on the ceiling 9. The main body 10 is attached by engaging the hook 6 of the mounting adapter 3 with the mounting fixture 2 installed on the ceiling 9.

The light source 30 is formed in an annular shape with an opening 13 in the center, and has an LED light source cover 31 covering the front side, with an annular LED board 40 and LEDs 41 surface-mounted on the LED board 40 arranged inside. The front side of the LED board 40 and the flat plate constituting the main body 10 arranged in the light source 30 are painted with white paint or the like, and by applying the white paint, the irradiated light emitted by the LEDs 41 can be efficiently reflected to the front side of the lighting fixture 1.

Here, we will explain how to attach the lighting fixture 1 to the mounting fixture 2. First, attach the mounting adapter 3 to the mounting fixture 2. Next, hold the main body 10 of the lighting fixture 1 and insert the mounting adapter 3 into the opening 13 provided in the main body 10. Then, when the main body 10 is lifted up by pushing up the tabs 5 of the mounting adapter 3 from below, the tabs 5 are pushed into the inside of the mounting adapter 3 by the edge of the annular portion 82 of the battery holder 80 attached to the main body 10. If the main body 10 is lifted in this state, the tabs 5 will climb over the edge of the annular portion 82 of the battery holder 80 and will be positioned below the annular portion 82. Since the tabs 5 are biased toward the outside of the mounting adapter 3, they will protrude outward again and support the main body 10 from below.

To remove the main body 10 from the mounting adapter 3, if there is a shade 90, remove the shade 90 from the main body 10 and then use the pair of release levers 4 provided on the bottom surface of the mounting adapter 3. By simultaneously placing your hands on the pair of release levers 4 and pulling them inward, the claws 5 retract into the mounting adapter 3, releasing the engagement with the annular portion 82, and the main body 10 is removed from the mounting adapter 3.

The LED board 40 is an annular flat plate having an opening at the center. The LEDs 41 mounted on the surface of the LED board 40 are substantially rectangular parallelepiped in shape, and are mounted on the LED board 40 in an annular shape at substantially equal intervals.
The LEDs 41 are made up of an incandescent LED 42, a daylight LED 43, and a Hotalook LED 44 (also called "afterglow LED";"Hotalook" (registered trademark)).

The warm white LED 42 and the daylight white LED 43 are LEDs that emit warm white and daylight white light, respectively, and the firefly LED 44 is an LED that glows as an afterglow for a certain period of time after the LEDs of the lighting fixture 1 are turned off.

On the surface of the LED board 40, the LEDs 41 are arranged in a ring shape around the opening, and the warm white LEDs 42 and the daylight white LEDs 43 are arranged alternately in the same row. The ring-shaped row of the LEDs 41 may be a single row or multiple rows. The LEDs 41 may be arranged in a lattice shape on the LED board 40. The warm white LEDs 42 and the daylight white LEDs 43 in the LEDs 41 do not need to be arranged alternately, and the warm white LEDs 42 may be arranged in the same row and the daylight white LEDs 43 in another row.
The firefly LEDs 44 can be disposed in suitable locations on the LED board 40, for example, around the opening or periphery of the LED board 40, or between the warm white LEDs 42 and the daylight white LEDs 43. As in other drawings, parts such as cords and connectors connected to the mounting adapter 3 and the LED board 40 are omitted, with some exceptions, in Fig. 14 and the like.

Figure 15 is a schematic diagram showing the circuit configuration of the lighting fixture 1 according to the embodiment. The light source 30 has a power supply board 50 arranged around the opening 13. The power supply board 50 is equipped with a dimming and color-adjusting power supply circuit 51 configured as a normal power supply circuit for the lighting fixture 1, and a battery power supply circuit 60 equipped with a power failure lighting circuit that charges the battery 70 during normal times and turns on the lighting fixture 1 in an emergency during a power failure. The dimming and color-adjusting power supply circuit 51 controls the applied voltage and current to adjust the brightness of the light source 30 by turning it on/off or dimming it, and to adjust the color by individually emitting the incandescent color LED 42 and the daylight color LED 43 or emitting a mixed color of these. These dimming and color adjustment operations can be performed by operating the remote controller 100.

The dimming and color adjustment power supply circuit 51 is composed of a PFC circuit (power factor correction circuit) 52, a DC/DC circuit 53, a remote control light receiving circuit 54, a dimming/color adjustment circuit 55, a firefly lighting circuit (afterglow LED lighting circuit) 56, and an LED circuit 40.

The battery power supply circuit 60 is composed of a PFC circuit (power factor correction circuit) 61, a power supply circuit 62, a remote control light receiving circuit 63, and a power failure LED lighting circuit (boost circuit) 64. The battery 70 is composed of a battery body 72A, a battery charging circuit 72B, and an indicator 72C.

Emergency lights, generally stipulated in the Electrical Appliance and Material Safety Law and certified by the Japan Lighting Manufacturers Association, use nickel-metal hydride batteries (Ni-MH) that comply with the JIS standard as batteries, do not require control circuits and are inexpensive, but they require a dedicated circuit for constant charging, have a short replacement guideline of four to six years, and are required to be continuously lit when in an emergency.
The continuous lighting time of the light source 30 in the lighting device 1 of the present invention is designed to last for approximately 10 hours, although this depends on the capacity of the battery 70. For example, a lithium iron phosphate battery is used as the battery 70. Among lithium ion batteries, this battery is characterized by its resistance to overcharging/overdischarging and its long life.

Generally, disaster prevention lights use dedicated batteries, making the lighting fixtures themselves expensive, but the battery 70 of the present invention can use a commercially available general-purpose battery, so it can be supplied to the market as an inexpensive lighting fixture, even though it has a disaster prevention function.

The AC power supplied from the power source passes through a PFC circuit (power factor correction circuit) 52 and a DC/DC circuit 53, then branches in three directions and is connected to a dimming/color-adjusting circuit 55, a remote control light receiving circuit 54, and a hotalook lighting circuit 56. An instruction signal issued by operating the buttons on the remote controller 100 is received by the remote control light receiving circuit 54, and an instruction signal is sent to the dimming/color-adjusting circuit 55, which adjusts the brightness such as turning on/off and dimming, and adjusts the color such as incandescent color and daylight color, thereby controlling the output of the LED circuit 40. Also, when the power supply to the LED circuit 40 is stopped by turning off the lighting fixture 1, power is supplied from the hotalook lighting circuit 56 to the hotalook LED 44, and the hotalook LED 44 lights up.

Meanwhile, AC power supplied from a commercial power source passes through a PFC circuit (power factor correction circuit) 61, and then DC power is supplied to the battery 70 through a power supply circuit 62. A pigtail cable 79 extending from the battery 70 is connected to a connector (not shown) of the power supply circuit 62, and DC power is supplied to the battery body 72A in the battery 70. The output voltage of the power supply circuit 62 is, for example, DC 24V.

The battery 70 is made up of a battery main body 72A, a battery charging circuit 72B, and an indicator 72C. The indicator 72C is made up of three green LEDs arranged on the bottom surface of the battery 70, and the number of lit LEDs indicates the remaining battery charge. For example, three lit LEDs indicate a full battery charge, two lit LEDs indicate a medium battery charge, and one lit LED indicates a low battery charge. The LED used for the indicator 72C is green, but is not limited to this and may be a red LED, yellow LED, or other colored LED.

The DC power output from the USB terminal 71, the battery charging circuit 72B, and the pigtail cable 79 is 5V/1A, but it may be 5V/0.1-3.0A, 9V/1.7-3.0A, 15V/1.8-3.0A, 20V/2.25-5.0A, etc. The power supply circuit 62 is connected to the battery charging circuit 72B as well as to an LED lighting circuit 64 that boosts the DC power. When the power supply from the power supply circuit 62 stops, the LED lighting circuit 64 detects a power outage and is excited, and DC power is output from the battery 70 to the incandescent color LED 42 and the daylight color LED 43, starting emergency lighting.

In the event of a power outage, the remote control light receiving circuit 63 operates by receiving DC power from the battery main body 72A.

The battery power supply circuit 60 is provided with a remote control light receiving circuit 63, which receives an emergency light on/off signal from the remote controller 100 to turn on/off the emergency light. For example, even if the lighting fixture 1 is turned off and emergency lighting is started due to a power outage or the like, there may be cases where it is daytime and the room is bright and there is no need to turn on the lighting fixture 1. In such cases, the emergency lighting of the lighting fixture 1 can be dimmed or turned off by operating the operation switches 101 and 102 of the remote controller 100, thereby preventing unnecessary consumption of the battery 70. This is particularly effective when the power outage lasts for a long period of time. By using a commercially available inexpensive product for the battery 70, the production cost of the lighting fixture 1 can be reduced. In addition, since the battery 70 can be easily removed from the battery holder 80 of the lighting fixture 1, a spare battery 70 can be prepared and fully charged in advance, and by replacing the battery 70 with a new battery 70 when the remaining charge of the previous battery 70 runs out, it is possible to continue the emergency lighting for a long period of time.

The remote control light receiving circuits 54, 63 are equipped with a receiving section (not shown) that receives a signal sent from the remote controller 100 and transmits the received signal to the dimming/color adjustment circuit 55 and the LED lighting circuit 64. The remote controller 100 outputs an infrared signal indicating the contents (control contents of how to control the lighting device 1) instructed by an operation performed by a user or the like. The infrared signal may be, for example, a signal indicating an IR (Infrared) code indicating the control contents. The remote controller 100 outputs an infrared signal indicating the control contents of the lighting device 1, for example, by outputting an infrared signal indicating an IR code according to the operation contents.

The infrared signal transmitted from the remote controller 100 is received by the receiving section of the remote control light receiving circuit 54, 63. The receiving section is composed of a light receiving element (e.g., an infrared sensor) capable of receiving an infrared signal. The infrared signal received by the receiving section is converted into an electrical signal and output to the dimming/color adjustment circuit 55 and the LED lighting circuit 64.

The dimming/color adjustment circuit 55 controls the incandescent color LED 42 and the daylight color LED 43 to perform dimming and color adjustment, such as turning on/off and dimming, according to the electrical signal (e.g., the control content indicated by the infrared signal) supplied from the receiving unit. The LED lighting circuit 64 also turns the emergency lighting on/off according to the electrical signal supplied from the receiving unit.

That is, the remote control light receiving circuit 54 functions as a detection unit that detects an infrared signal transmitted from the remote controller 100. The operation of these receiving units, the dimming/color adjustment circuit 55, and the LED lighting circuit 64, etc., enables the remote control of the light source 30 by the remote controller 100.

The remote controller 100 is provided with a dimmer switch 101 and a color adjustment switch 102 as operation switches. The dimmer switch 101 controls the turning on/off of the lighting fixture 1, and the color adjustment switch 102 can adjust the color of the illumination emitted by the light source 30 to a color desired by the user, such as daylight color or incandescent color.

For example, when a user operates the dimmer switch 101 of the remote controller 100 to turn on the light source 30, an infrared signal indicating that the light source 30 should be turned on is supplied to the light source 30, and the dimming/color adjustment circuit 55 turns on the light source 30 based on the infrared signal received by the receiving unit. When a user operates the remote controller 100 to turn off the light source 30, an infrared signal indicating that the light source 30 should be turned off is supplied to the light source 30, and the dimming/color adjustment circuit 55 turns off the light source 30 based on the infrared signal received by the receiving unit. When a user operates the color adjustment switch 102, the remote controller 100 transmits an instruction signal indicating the dimming and the type of dimming to be performed, and the color of the light source 30 is adjusted.

In addition to infrared signals, wireless communication between the remote controller 100 and the receiving unit may use 2.4 GHz specific low-power radio, radio in other frequency ranges, ZigBee (registered trademark), Bluetooth (registered trademark), Wi-Fi (registered trademark), infrared communication, etc.

When the commercial power supply is interrupted and a power outage occurs, the power supply to the lighting fixture 1 is cut off. The LED lighting circuit 64 detects that the power supply has been interrupted and outputs DC power from the battery 70 to supply DC power to the LED board 40. The LED circuit 40 that has received the power supply turns on the light source 30 using the DC power output from the battery 70, and starts emergency lighting.

When the lighting fixture 1 is turned on in an emergency due to a power outage caused by a commercial power interruption, DC power is continuously output from the battery 70, and the lighting state (emergency lighting) is maintained. Figure 16 (B) shows a perspective view of the remote controller 100. When the light of the lighting fixture 1 is not needed, the lighting fixture 1 can be turned off by operating the dimmer switch 101 provided on the remote controller 100, just as in normal times, and can be turned on by operating it again. In other words, the lighting fixture 1 can be turned on and off by operating the dimmer switch 101. The lighting fixture 1 can also be operated with the color adjustment switch 102, just as in normal times.

For example, even in the event of a power outage or other emergency, when the light from lighting fixture 1 is not needed, such as during the day when the room is sufficiently bright, lighting fixture 1 can be turned off by operating operation switch 111 of remote controller 100 to conserve power from battery 70 and prepare for lighting at night. Also, when needed, lighting fixture 1 can be turned on by operating operation switch 111.

As described above, the remote controller 100 is provided with a dimmer switch 101 and a color adjustment switch 102 for turning the lighting fixture 1 on and off, but the light source 30 may also be provided with an illuminance sensor for detecting brightness and a human presence sensor for detecting human movement. This allows for additional functions to be added during emergency lighting of the lighting fixture 1 due to an earthquake or the like, such as (1) not turning on the emergency light when the room is bright even during a power outage, (2) turning off the light when the room becomes bright in the morning, and (3) not turning on the light when no one is present, thereby enabling efficient operation of the lighting fixture 1 including the battery 70, such as saving power to the battery 70 and extending the replacement period.

According to the present invention, by providing a battery 70 to a lighting fixture 1 equipped with a light source 30, the lighting fixture can function as a lighting fixture during normal times, and in an emergency, the lighting fixture can function as a disaster prevention light that can be lit for a long period of time without the need for special construction by supplying power from the battery equipped in the lighting fixture.

Figure 16 (A) shows a front view of the wall switch cover 115. In a typical home, when the lighting fixture 1 is turned off by an operation switch 111 such as a wall switch 110 used to turn the lighting fixture 1 on and off, the LED lighting circuit 64 of the lighting fixture 1 cannot detect a power outage. In other words, from the lighting fixture 1's perspective, the wall switch 110 has already caused a power outage, so the battery power circuit 60 will not operate even if a power outage occurs. For this reason, by covering the wall switch 110 with a wall switch cover 115 to prevent the wall switch 110 from being operated, the present invention can be implemented in a simple manner without the user having to use the wall switch 110 or performing wiring work, etc.

The wall switch cover 115 covers the entire wall switch 110 from above, and by attaching double-sided tape or adhesive to the sides of the wall switch cover 115 and fixing it to the panel of the wall switch 110, it is possible to prevent the user from touching the wall switch 110.

Note that this invention is not limited to the above-described embodiment, and various modifications and applications of the above-described embodiment are possible.

In this way, the present invention provides a lighting fixture 1 with a power outage detection function, such as a ceiling light that uses an LED as a light source, that functions as a lighting fixture 1 under normal circumstances and as a disaster prevention light (emergency light) that lights up for a certain period of time in an emergency such as when the power is turned on, by attaching a battery holder 80 to the lighting fixture 1 and positioning a battery in the battery holder 80 so that the lighting fixture 1 functions normally and functions as a disaster prevention light (emergency light) in an emergency such as when the power is turned on, in a simple manner.

In addition, the present invention provides a lighting fixture 1 that can be fitted with a freely attachable battery 70, allowing it to remain lit for long periods of time even in the event of a power outage caused by a natural disaster such as an earthquake, and that can also be operated to turn the light on and off in an emergency.

1 Lighting fixture 2 Fixture (hook-in ceiling rosette)
3 Mounting adapter 4 Release lever 5 Claw (holding member)
6 Hanging bracket 9 Ceiling (mounting part)
REFERENCE SIGNS LIST 10 Body 11 Planar portion 12 Bottom portion 13 Opening 14 Holding portion 15 Hole portion 16A Outer step portion 16B Inner step portion 17 Positioning portion 18 Convex portion 19 Edge portion 20 Hole portion 21 Planar portion 30 Light source 31 LED light source cover 32 Edge portion 33 Hole portion 34 Flat plate portion 37 Notch portion 38 Hole portion 39 Opening 39A Connection terminal 40 LED circuit (LED board, LED substrate)
41 LED
42 Warm white LED
43 Daylight LED
44 Hotalook LED (afterglow LED)
50 Power supply board 51 Dimming color adjustment power supply circuit 52 PFC circuit (power factor correction circuit)
53 DC/DC circuit 54 Remote control light receiving circuit 55 Dimming/color adjustment circuit 56 Hotalook lighting circuit (afterglow LED lighting circuit)
60 Battery power supply circuit 61 PFC circuit (power factor correction circuit)
62 Power supply circuit 63 Remote control light receiving circuit 64 Circuit for turning on LED during power outage 70 Battery 71 USB terminal 72A Battery body 72B Battery charging circuit 72C Indicator 73 Groove 74 Fitting portion 75 Fixing portion 76 Protrusion 77 Upper portion 78 Lower portion 79 Pigtail cable 80 Battery holder 81 Leg 82 Annular portion 83 Fastening boss 84 Hole 85 Notch 90 Shade 100 Remote controller 101 Dimmer switch (operation switch)
102 Color adjustment switch (operation switch)
110 Wall switch 111 Operation switch 115 Wall switch cover

Claims (5)

A circular, flat body having an opening at its center ;
a light source including a substrate on which a plurality of LEDs are mounted, the light source being disposed on the front side of the main body so as to surround the opening ;
a power supply board disposed on the light source and having a power supply circuit mounted thereon ;
a battery holder attached to the main body and configured to hold a battery in a freely attachable manner;
the battery holder has an annular portion attached to a flat portion formed around the opening of the main body , and legs disposed on a lower surface of the annular portion and holding the battery;
When the battery is attached to the battery holder , the power supply circuit of the power supply board
Normally, power is supplied to the light source and the battery;
A lighting fixture, characterized in that, in the event of a power outage, power is supplied from the battery to the light source. The power supply circuit of the power supply board includes a dimming/color adjusting power supply circuit and a battery power supply circuit,
In a normal state, the dimming and color adjusting power supply circuit supplies power to the light source, and the battery power supply circuit supplies power to the battery;
2. The lighting fixture according to claim 1, wherein, when a power outage occurs, the battery power supply circuit detects the power outage and supplies power from the battery to the light source. The dimming/color-adjusting power supply circuit further includes a dimming/color-adjusting circuit, an LED circuit, a remote control light receiving circuit, and an afterglow LED lighting circuit,
The wireless signal output from the remote controller is received by the remote control light receiving circuit and transmitted to the LED circuit through the dimming/color adjusting circuit, thereby dimming/adjusting the color of the light source,
3. The lighting device according to claim 2, wherein when the wireless signal is an instruction signal to turn off the lighting device, the afterglow LED lighting circuit is activated to light the afterglow LED. The battery power supply circuit further includes a PFC circuit, a power supply circuit, an LED lighting circuit, and a remote control light receiving circuit,
In a normal state, power is supplied to the battery through the PFC circuit and the power supply circuit which are electrically connected to a commercial power source;
When a power outage occurs, the LED lighting circuit detects the power outage and outputs power from the battery to the LED lighting circuit to light the light source.
3. The lighting device according to claim 2, wherein when the wireless signal output from the remote controller is an instruction signal to turn on/off the lighting device, the remote control light receiving circuit receives the instruction signal and turns on/ off the light source. 5. The lighting fixture according to claim 3, wherein the remote controller includes a transmitter for transmitting a radio signal, a dimmer switch for instructing turning the light on and off, and a color adjustment switch for instructing color adjustment.

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