JP7759676B2 - 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 ordinary buildings such as individual houses and apartment complexes. 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 using a wall switch or by operating the buttons on the 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 and cuts off the power, a power outage will occur and lighting fixtures will suddenly go out. Particularly when a power outage occurs at night, you will have to grope around in the dark looking for flashlights, lanterns, and candles, and if the safety breaker trips, you will have to search for the switch on the distribution board.
In such cases, if ceiling-mounted lighting fixtures are equipped with disaster prevention (emergency) lighting devices that can be turned on in an emergency, people will not have to search for flashlights or other light sources in the sudden darkness, which can reduce their anxiety.

As a countermeasure against sudden power outages, lighting fixtures equipped with emergency power sources (batteries) that turn on in emergencies are known. When a power outage is detected, these lighting fixtures turn on using power supplied from the emergency power source (battery) and function as emergency lights (Patent Document 1).

Japanese Patent Application Publication No. 10-92586

Patent Document 1 describes a lighting fixture that is installed on the ceiling and has a battery inside it, and a remote control transmitter that transmits a power outage detection signal in the event of a commercial power outage is set in a permanently connected state to a power outlet, so that 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 plugged into a power outlet at all times. 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 its lighting time is short, so in order to ensure a certain level of lighting time, it is necessary to equip it with a large-capacity battery.

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. The lighting fixture has a power outage detection function, and by attaching a battery holder to the lighting fixture and placing a battery in the battery holder in an easily configurable manner, the lighting fixture functions as a lighting fixture under normal circumstances, and as a disaster prevention light (emergency light) that lights up for a certain period of time in an emergency.

In order to achieve the above object, a lighting fixture according to an aspect of the present invention comprises:
A battery holder that is attached to a lighting fixture and to which a battery is detachably attached,
the battery holder has a circular, flat body with an opening at the center of the lighting fixture, and includes: an annular portion to be attached to a flat surface formed around the opening; and legs located on a lower surface of the annular portion and for holding the battery;
When the battery holder is attached to the lighting fixture and the battery is attached to the battery holder, power is normally supplied from a commercial power source to the light source of the lighting fixture and the battery, and in the event of a power outage, power is supplied from the battery to the light source.

According to this invention, a battery is installed inside a lighting fixture that is attached to a fixture (wiring device) installed on the ceiling (mounting section). During a power outage, the lighting fixture is powered by the power supplied from the battery, 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 dedicated construction.

1 is a side view showing a lighting fixture according to an embodiment. 1 is a front view showing a state in which the shade is removed from the lighting fixture according to the embodiment. FIG. FIG. 2 is a rear view showing a state in which the shade is removed from the lighting fixture according to the embodiment. 1 is a perspective view showing a state in which a shade is removed from a lighting fixture according to an embodiment. FIG. 1A is a side view showing a main body and a light source according to an embodiment, and FIG. 1B is a perspective view of the same. FIG. 2 is a side view of the main body according to the embodiment. FIG. 2 is a front view of the main body according to the embodiment. FIG. 2 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. 1C is a perspective view of the same. 1A is a side view of a battery holder according to an embodiment, FIG. 1B is a top view of the same, FIG. 1C is a bottom view of the same, and FIG. 1D is a perspective view of the same. 1A is a side view of a battery according to an embodiment, FIG. 1B is a top view, FIG. 1C is a bottom view, and FIG. 1D is a perspective view. 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. 1C is a perspective view of the same. 1A is a side view of a mounting adapter according to an embodiment, FIG. 1B is a top view of the same, FIG. 1C is a bottom view of the same, and FIG. 1D is a perspective view of the same. 5A is a cross-sectional view of the lighting fixture shown in FIG. 4 taken along line AA, and FIG. 5B is a side view of the same. 1 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 Figures 1 to 16. The lighting fixture 1 according to an embodiment of the present invention is generally referred to as an LED ceiling light, and is a lighting fixture that is attached to a ceiling for use.

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 the scope of the present invention should not be interpreted in a limited manner by these.
In addition, some of the components that make up the lighting fixture 1, such as wiring, are omitted 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, also known as a ceiling rosette, ceiling rosette body, ceiling fixture, or ceiling rosette, is attached to the ceiling 9 for installing a ceiling light or the like. The fixture 2 outputs commercial power and connects to the lighting fixture 1.

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

Note that the shade 90 is optional and not necessarily required for the lighting fixture 1 of the present invention. In that case, the holder 14 formed on the main body 10 is not necessary.

The light source 30 is arranged on the main body 10, surrounding the central opening 13. Figure 2 shows the circular main body 10, 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 for external power supply and discharging to USB devices, etc.

The main body 10 is formed from a substantially circular flat plate with an opening 13 in the center. As shown in Figure 3, a mounting adapter 3 is attached to the back (rear side) of the main body 10, fitting into the opening 13. A protrusion 18 is also formed on the rear side of the main body 10. Figure 4 shows the light source 30 located on the front side of the main body 10 and the battery 70 attached to the opening 13 of the main body 10 located 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 Figure 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 illustration shows an annular light source 30 with an opening 13 in its center and an annular main body 10 that is slightly larger than the light source 30.

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 Figure 6, the main body 10 has a trapezoidal convex portion 18 formed on a flat portion 11. Here, when the lighting fixture 1 is installed on the ceiling 9, the side facing the ceiling 9 with the lighting fixture 1 at the center is referred to as the back side, and the side facing the floor 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 stepped portions 16A and 16B formed along the circumferential direction on the outside of the opening 13. The inner stepped portion 16B forms the side of a truncated cone that is convex toward the front surface as a whole, while the outer stepped portion 16A forms an annular flat portion 11 on the outer periphery of the main body 10. In addition, a convex portion 18 that is convex toward the back surface is formed in an annular shape between the inner stepped portion 16B and the outer stepped portion 16A. The light source 30 is placed within the convex portion 18 and positioned by a positioning portion 17. The light source 30 is screwed to the main body 10 through a plurality of holes 15, 20 drilled in the flat portion 11 formed around the periphery of the main body 10 and the flat portion 21 formed around the opening 13.

As shown in Figure 8, the rear side of the main body 10 has a bottom surface 12 (protrusion 18) that protrudes toward the front, and an edge 19 is formed around 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 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 anti-glare effects, and is made of a diffusive material such as acrylic resin or polycarbonate resin, which provides uniform illumination over a wide area.

As shown in Figure 9 (B), the LED light source cover 31 is a circular ring-shaped member with an opening 13 in the center. A flat plate portion 34 is formed around the opening 13 and runs along the periphery of the opening 13. The flat plate portion 34 is also provided with two opposing holes 33 and an opening 39 through which an electric wire for supplying power can pass, and a connection terminal 39A for connecting to the end of the electric wire is located within the opening 39. The LED light source cover 31 is also provided with multiple cutouts 37 and holes 38 on its outer periphery edge 32, and is fixed to the main body 10 by screws passing through the cutouts 37 and holes 38.

The shade 90 shown in Figure 1 is removably attached so as to cover the entire front of the LED light source cover 31 and main body 10. The shade 90 is made of a translucent acrylic resin or polycarbonate resin with diffusive properties, such as milky white, and is hollow and circular with an opening on one side. The shade 90 is also called a globe or similar component, and has the function of efficiently diffusing the light emitted from the light source 30. A holding portion 14 is provided on the flat surface 11 of the main body 10, and the edge of the shade 90 engages with the holding portion 14 of the main body 10, thereby removably holding the shade 90 to the main body 10. As mentioned above, the shade 90 is an optional component.

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 attachable battery 70. It has a circular annular portion 82 and cylindrical fastening bosses 83 with slightly tapered sides located 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 underside of the annular portion 82 adjacent to the hole 84 and perpendicular to the underside of the annular portion 82. The tips of the legs 81 are formed in an L-shape facing the inside of the annular portion. The annular portion 82 also has a pair of cutouts 85.

By inserting and screwing screws through the holes 84 of the co-fastening boss 83, the holes 33 of the LED light source cover 31, and the holes 20 of the main body 10, the battery holder 80, the LED light source cover 31, and the main body 10 are screwed together.

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-tiered shape consisting of a disc-shaped upper tier 77 and a disc-shaped lower tier 78 that is larger than the upper tier 77. The upper tier 77 has two grooves 73 on its side that face each other. 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 tier 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 Figure 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 aligned with 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 portion 78 of the battery 70, and the battery 70 is rotated counterclockwise as viewed from above, causing the tips of the legs 81 to move along the fixing portion 75 of the battery 70, thereby securing the battery 70 in place. The fixing portion 75 is provided with a protrusion 76, which secures the legs 81 so that they do not come off the battery holder 80. To remove the battery 70 from the battery holder 80, simply lift the battery 70 and rotate it clockwise to easily remove it.

Furthermore, 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 mobile phones, etc.
Furthermore, since the battery 70 is commercially available, it can be purchased at a low price, and multiple batteries can be owned as spares. By owning multiple batteries 70, lighting fixture 1 can be expected to last for even longer, 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 its top surface, a pair of claws 5 on its side, and a pair of release levers 4 on its bottom surface. The hooks 6 of the mounting adapter 3 fit into a pair of engagement grooves in the fixture 2 located on the ceiling 9, respectively, to establish a mechanical connection and an electrical connection to a commercial power source.

As shown in Figures 1 and 14(A), the mounting fixture 2 is a component for attaching the main body 10 to the installation location of the lighting fixture 1. The mounting fixture 2 is also referred to as a ceiling hook, ceiling hook body, etc.

The tabs 5 are used to remove the mounting adapter 3 from the fixture 2. By pinching the release lever 4 with your fingers and pulling it inward, the tabs 5 move toward the center of the mounting adapter 3 and rotate the mounting adapter 3 horizontally, allowing the mounting adapter 3 to be removed from the fixture 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 light source 30 will be explained 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-sections, with hatching indicating cross sections and internal structures omitted.

Figures 14 (A) and (B) are 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 fixture 2 installed on the ceiling 9.

The light source 30 is annular in shape with an opening 13 in the center. It is fitted with an LED light source cover 31 that covers the front side, and an annular LED board 40 and LEDs 41 surface-mounted on the LED board 40 are arranged inside the cover. The front side of the LED board 40 and the flat plate that makes up the main body 10, both of which are arranged inside the light source 30, are painted with white paint or the like. Applying the white paint allows the light emitted by the LEDs 41 to be efficiently reflected toward 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, as 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 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 then continued to be 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. Because the tabs 5 are biased outward from 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 located on the bottom 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 allowing the main body 10 to be removed from the mounting adapter 3.

The LED substrate 40 is an annular flat plate having an opening in the center. The LEDs 41 mounted on the surface of the LED substrate 40 are substantially rectangular parallelepiped in shape and are mounted on the LED substrate 40 at substantially equal intervals in an annular shape.
The LEDs 41 are composed of warm white LEDs 42, daylight white LEDs 43, and firefly LEDs 44 (also called "afterglow LEDs";"Firefly" (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 substrate 40, the LEDs 41 are arranged in a ring shape around the opening, with the warm white LEDs 42 and the daylight white LEDs 43 arranged alternately in the same row. The LEDs 41 may be arranged in a single ring shape or in multiple ring shapes. The LEDs 41 may also be arranged in a lattice pattern on the LED substrate 40. The warm white LEDs 42 and the daylight white LEDs 43 of the LEDs 41 do not need to be arranged alternately; 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 an appropriate location on the LED board 40, for example, around the periphery or opening of the LED board 40, or between the warm white LEDs 42 and the daylight white LEDs 43. As with the other drawings, in Fig. 14 and elsewhere, parts such as cords and connectors connected to the mounting adapter 3, the LED board 40, etc. are omitted with some exceptions.

Figure 15 is a schematic diagram showing the circuit configuration of a lighting fixture 1 according to an embodiment. A power supply board 50 is arranged in the light source 30 so as to surround the opening 13. The power supply board 50 is equipped with a dimming and color-adjusting power supply circuit 51, which is configured as the normal power supply circuit for the lighting fixture 1, and a battery power supply circuit 60 equipped with a power outage lighting circuit that charges the battery 70 during normal operation and turns on the lighting fixture 1 in an emergency during a power outage. The dimming and color-adjusting power supply circuit 51 controls the applied voltage and current to adjust the brightness of the light source 30, such as turning it on/off or dimming it, and to adjust the color, such as emitting individual light from the warm white LED 42 and daylight white LED 43 or a mixture of these colors. 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 consists of a PFC circuit (power factor correction circuit) 61, a power supply circuit 62, a remote control light receiving circuit 63, and a power outage LED lighting circuit (boost circuit) 64. The battery 70 consists of a battery main body 72A, a battery charging circuit 72B, and an indicator 72C.

Emergency lights, generally stipulated in the Electrical Appliance and Material Safety Act and certified by the Japan Lighting Manufacturers Association, use nickel-metal hydride (Ni-MH) batteries, which comply with JIS standards, and are inexpensive because they do not require a control circuit. However, 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 during emergency use.
The continuous lighting time of the light source 30 in the lighting fixture 1 of the present invention is designed to last 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 and overdischarging and its long life.

In addition, disaster prevention lights generally use dedicated batteries, making the lighting fixtures themselves expensive. However, 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 despite having disaster prevention functions.

The AC power supplied from the power supply passes through a PFC circuit (power factor correction circuit) 52 and a DC/DC circuit 53 before branching three ways and connecting to a dimming/color-adjusting circuit 55, a remote control light receiving circuit 54, and a firefly lighting circuit 56. Command signals issued by button operations on the remote controller 100 are received by the remote control light receiving circuit 54, which then sends the command signals to the dimming/color-adjusting circuit 55, which controls dimming (on/off, dimming, etc.) and color adjustment (warm white, daylight, etc.), thereby controlling the output of the LED circuit 40. Furthermore, when the power supply to the LED circuit 40 is stopped by turning off the lighting fixture 1, power is supplied from the firefly lighting circuit 56 to the firefly LED 44, causing the firefly LED 44 to light 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 via 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 main body 72A inside the battery 70. The output voltage of the power supply circuit 62 is, for example, 24V DC.

Battery 70 consists of a battery main body 72A, a battery charging circuit 72B, and an indicator 72C. Indicator 72C is made up of three green LEDs located on the bottom of battery 70, and the remaining battery charge is displayed by the number of lit LEDs. 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. While a green LED is used for indicator 72C, it is not limited to this and other colored LEDs such as red or yellow LEDs may also be used.

The DC power output from the USB terminal 71, battery charging circuit 72B, and pigtail cable 79 is 5V/1A, but is not limited to this and 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 the LED lighting circuit 64, which controls the boosting of DC power. When the power supply from the power supply circuit 62 is stopped, the LED lighting circuit 64 detects a power outage and becomes activated. DC power is output from the battery 70 to the warm white LED 42 and the daylight white LED 43, and emergency lighting begins.

In addition, during 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 equipped with a remote control light receiving circuit 63, which receives an emergency light on/off signal from the remote controller 100 to turn the emergency light on/off. For example, even if lighting fixture 1 is turned off and emergency light is activated due to a power outage or other reason, there may be cases where it is daytime and the room is bright and there is no need to turn on lighting fixture 1. In such cases, operating the operation switches 101 and 102 on the remote controller 100 can dim or turn off the emergency light of lighting fixture 1, preventing unnecessary consumption of battery 70. This is particularly effective when the power outage lasts for an extended period of time. Using an inexpensive, commercially available battery 70 can reduce the production cost of lighting fixture 1. Furthermore, because the battery 70 can be easily removed from the battery holder 80 of lighting fixture 1, a spare battery 70 can be prepared and fully charged in advance. By replacing the old battery 70 with a new one when it runs out, emergency light can be maintained for an extended period of time.

The remote control light receiving circuits 54, 63 are equipped with a receiving unit (not shown) that receives signals transmitted from the remote controller 100 and transmits the received signals to the dimming/color adjustment circuit 55 and the LED lighting circuit 64. The remote controller 100 outputs an infrared signal indicating the content of an instruction (how to control the lighting fixture 1) specified 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 content. The remote controller 100 outputs an infrared signal indicating the control content of the lighting fixture 1, for example, by outputting an infrared signal indicating an IR code corresponding to the operation content.

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 infrared signals. 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 warm white LED 42 and the daylight white LED 43 to turn them on/off, dim them, and adjust the color in accordance with the electrical signal (e.g., the control content indicated by the infrared signal) supplied from the receiver. The LED lighting circuit 64 also turns the emergency lights on/off in accordance with the electrical signal supplied from the receiver.

In other words, the remote control light receiving circuit 54 functions as a detection unit that detects infrared signals transmitted from the remote controller 100. The operation of these receiving units, the dimming/color adjusting circuit 55, and the LED lighting circuit 64 enables the remote controller 100 to remotely control the light source 30.

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

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 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 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.

Wireless communication between the remote controller 100 and the receiving unit may use infrared signals, as well as 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.

If 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 this power interruption and outputs DC power from the battery 70 to supply DC power to the LED board 40. Upon receiving power, the LED circuit 40 lights up the light source 30 using the DC power output from the battery 70, commencing emergency lighting.

When 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 battery 70, and the lighting state (emergency lighting) is maintained. Figure 16 (B) shows a perspective view of remote controller 100. When the light from lighting fixture 1 is not needed, just as in normal times, operating the dimmer switch 101 on remote controller 100 will turn lighting fixture 1 off, and operating it again will turn it on. In other words, lighting fixture 1 can be turned on and off by operating dimmer switch 101. Lighting fixture 1 can also be operated using color adjustment switch 102 in the same way as in normal times.

For example, even in an emergency such as a power outage, if 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 on remote controller 100, saving power from battery 70 and preparing for lighting at night. Furthermore, 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. The light source 30 may also be provided with an illuminance sensor for detecting brightness and a motion 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 other event, such as (1) not turning on the emergency light if the room is bright even during a power outage, (2) turning off the light when the room becomes bright in the morning, or (3) not turning on the light when no one is present. This allows for efficient operation of the lighting fixture 1, including the battery 70, by conserving battery power and extending the replacement interval.

According to the present invention, by equipping a lighting fixture 1 equipped with a light source 30 with a battery 70, the lighting fixture functions normally, and in an emergency, power is supplied from the battery installed in the lighting fixture, allowing the lighting fixture to function as a disaster prevention light that can be lit for long periods of time without the need for dedicated construction.

Figure 16(A) shows a front view of the wall switch cover 115. In a typical home, when lighting fixture 1 is turned off by an operation switch 111, such as a wall switch 110 used to turn lighting fixture 1 on and off, the LED lighting circuit 64 of lighting fixture 1 cannot detect a power outage. In other words, from the lighting fixture 1's perspective, the wall switch 110 has already turned off the power, so even if a power outage occurs, the battery power circuit 60 will not operate. Therefore, by covering the wall switch 110 with a wall switch cover 115 that prevents 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. 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 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. By attaching a battery holder 80 to the lighting fixture 1 and positioning a battery in the battery holder 80 so that it can be easily attached, the lighting fixture 1 can function 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 emergencies such as when the power is turned on.

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

1 Lighting fixture 2 Fixture (hook ceiling rosette)
3 Mounting adapter 4 Release lever 5 Claw (holding member)
6 Hook fitting 9 Ceiling (mounting part)
REFERENCE SIGNS LIST 10 Main body 11 Planar portion 12 Bottom surface 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 Firefly 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 Firefly 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 Power outage LED lighting circuit 70 Battery 71 USB terminal 72A Battery body 72B Battery charging circuit 72C Indicator 73 Groove portion 74 Fitting portion 75 Fixing portion 76 Protrusion 77 Upper portion 78 Lower portion 79 Pigtail cable 80 Battery holder 81 Leg portion 82 Ring portion 83 Co-tightening boss 84 Hole portion 85 Notch portion 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 (3)

A battery holder that is attached to a lighting fixture and to which a battery is detachably attached,
the battery holder has a circular, flat body with an opening at the center of the lighting fixture, and includes: an annular portion to be attached to a flat surface formed around the opening; and legs located on a lower surface of the annular portion and for holding the battery;
A battery holder characterized in that, when the battery holder is attached to the lighting fixture and the battery is attached to the battery holder, power is normally supplied from a commercial power source to the light source of the lighting fixture and the battery, and in the event of a power outage, power is supplied from the battery to the light source. the battery holder includes a cylindrical co-fastening boss provided on an upper surface of the annular portion,
The battery holder according to claim 1, wherein the co-tightening boss is inserted into a hole in the light source cover of the lighting fixture and a hole in the main body and screwed in, thereby screwing the battery holder integrally with the light source cover and the main body. 2. The battery holder according to claim 1, wherein the battery has a mating portion, a lower portion, and a fixing portion, and the battery is fixed by aligning the legs of the battery holder with the mating portions, placing the legs on the upper surface of the lower portion, rotating the battery, and moving the tips of the legs along the fixing portion.