TWI771568B - lighting device - Google Patents

Abstract

The lighting device (10) of the present invention is provided with: a power receiving part (21), which is detachably mounted on an external socket (80), and which receives power from the socket (80); a speaker device (30) as a functional part In one example, the electric power supplied by the power receiving part (21) is used to execute a predetermined action; and the light emitting part (50). The light-emitting part (50) is arranged to surround the speaker device (30) along the outer shape of the speaker device (30) when viewed from the front, and uses the power supplied by the power receiving part (21) to emit illumination light. The front end portion of the light-emitting portion (50) is positioned further forward than the horn device (30) in the front-rear direction.

Description

lighting device

The present invention relates to a lighting device having a functional part that executes a predetermined action.

In the prior art, there is an illuminating device including a functional part such as a speaker device that executes a predetermined action. For example, Patent Document 1 discloses an illuminating device comprising: a light source; a speaker unit disposed on the opposite side of the light emitting direction of the light source; and a device body that accommodates the light source and the speaker unit. [Previously known technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2017-182963

[Problems to be Solved by Invention]

Like the above-mentioned conventional lighting fixtures, a lighting device in which functional parts such as speaker units are disposed on the opposite side of the light emitting direction of the light source can prevent, for example, that the illuminating light emitted from the light source is blocked by the functional parts. However, on the other hand, it is difficult to reduce the size of the lighting device in the front-rear direction (direction parallel to the light exit direction).

In consideration of the above-mentioned subject of the conventional technology, the object of the present invention is to provide an illuminating device having a functional part for executing a predetermined operation, and the illuminating device can be miniaturized. [Technical means to solve problems]

In order to solve the above-mentioned problems, a lighting device according to an aspect of the present invention emits illuminating light to the front; the lighting device includes: a power receiving part, which is detachably mounted on an external power supply device, and receives power from the power supply device; and a functional part, The electric power supplied by the power receiving unit is used to perform a predetermined action; and the light emitting section is arranged to surround the functional unit along the outer shape of the functional unit when viewed from the front, and uses the power supplied by the power receiving unit to emit light The illuminating light; the front end of the light-emitting part is positioned further forward than the functional part in the front-rear direction. [Effect of invention]

According to the lighting device according to an aspect of the present invention, it has a functional part that executes a predetermined action, and can be miniaturized.

Hereinafter, embodiments of the present invention and modifications thereof will be described. In addition, the embodiments and modifications described below are all for describing a specific example of the present invention. Therefore, the numerical values, shapes, materials, constituent elements, and arrangement positions and connection forms of constituent elements shown in the following embodiments and modifications are all examples, and are not intended to limit the present invention. Therefore, among the constituent elements of the following embodiments and modifications, if they are constituent elements not described in the independent claims indicating the highest-level concept of the present invention, they will be described as arbitrary constituent elements.

Furthermore, each drawing is a schematic diagram, not necessarily a precise one. In addition, in each figure, about the substantially same structure, the same code|symbol is attached|subjected, and the repeated description may be abbreviate|omitted or simplified. In addition, in the drawings, regarding the light-emitting element and the like, a plurality of structures or members having the same function are provided, and in some cases, only one of the structures or members is given a symbol.

Furthermore, in the following embodiments and modifications, terms such as "parallel" and "orthogonal" may be used to show the relative situation of two directions, but these terms include situations that are not strictly speaking such a situation. . For example, when it is stated that "two directions are parallel", unless otherwise stated, it does not mean that the two directions are completely parallel, but includes substantially parallel, that is, a difference of, for example, a few %.

(Embodiment) Hereinafter, the lighting device of the embodiment will be described.

[1-1. The overall structure of the lighting device] First, referring to FIGS. 1 to 3 , the overall configuration of the lighting device 10 according to the embodiment will be described. FIG. 1 is a first perspective view showing the appearance of the lighting device 10 according to the embodiment. FIG. 2 is a second perspective view showing the appearance of the lighting device 10 according to the embodiment. Specifically, FIG. 1 is a perspective view when the lighting device 10 is viewed obliquely from the front, and FIG. 2 is a perspective view when the lighting device 10 is viewed obliquely from the rear. In addition, "front" refers to the emission direction of the illumination light, and "rear" refers to the opposite direction. That is, in this embodiment, the "front" is the positive direction of the Z-axis, and the "rear" is the negative direction of the Z-axis.

FIG. 3 is an exploded perspective view of the lighting device 10 according to the embodiment. 3, only the elements necessary for explaining the outline of the configuration of the lighting device 10 are shown, and the illustration of other elements, such as wires connecting the power receiving unit 21 and the substrate 25, is omitted. This principle also applies to Figures 5 to 8 described later.

The lighting device 10 of the present embodiment is, for example, a lighting device installed on the ceiling 90 (refer to FIG. 3 ) of a building such as a house, and used to illuminate the space in front of the lighting device 10 , that is, the space below the ceiling 90 ; For the ceiling-type downlights (down ceiling lights). In addition, the upper direction (positive direction of Z-axis) in FIG. 3 corresponds to the direction of the floor surface (not shown) which opposes the ceiling 90. As shown in FIG. That is, the lighting device 10 in FIG. 3 is shown in an upside-down state when it is normally used.

As shown in FIGS. 1 to 3 , the lighting device 10 includes a main body portion 20 , a speaker device 30 , and a light-emitting portion 50 . The main body portion 20 is a member that holds the speaker device 30 and the light-emitting portion 50, and has a power receiving portion 21 that receives power supplied by an external power supply device. The power reception unit 21 is detachably attachable to the power supply appliance. Specifically, the power receiving portion 21 of the present embodiment has the structure of a GX53 base; more specifically, it includes a pair of base pins 22 for receiving power supply. By inserting and engaging a pair of lamp base pins 22 into a pair of power supply holes 82 of "the lamp base 80 embedded in the ceiling 90", the pair of lamp base pins 22 is mounted on a lamp base which is an example of a power supply appliance. 80. That is, the power receiving unit 21 is in a state of receiving power from the socket 80 , and the lighting device 10 is fixed to the socket 80 . Furthermore, the lighting device 10 is removed from the lamp socket 80 by releasing the engagement between the pair of lamp cap pins 22 and the pair of power supply holes 82 and pulling them out.

In addition, the power receiving unit 21 does not necessarily have to have a structure of a GX53 base, and may be a structure capable of receiving electric power from a socket provided on a structure such as a ceiling and attachable to and detachable from the socket. For example, the power receiving unit 21 may be a screw base such as an E26 base. However, considering that the screw base may be loosened due to vibration of the horn device 30, for example, the power receiving part 21 of the lighting device 10 including the horn device 30 can be said to be attached to a device having a latch mechanism. The GX53 lamp holder of the lamp holder is more suitable. That is, in this embodiment, the power receiving unit 21 has a base pin that is inserted into and engaged with an external power supply device, and the base pin is electrically connected to the power supply device. Thereby, the power receiving unit 21 is mechanically and electrically connected to the power feeding device, and it is possible to suppress the occurrence of the power receiving unit 21 coming loose from the power feeding device due to vibration, for example.

Furthermore, in the present embodiment, the size and shape of the socket 80 can accommodate only a part of the thickness direction (Z-axis direction) of the lighting device 10 , but may be, for example, the size and shape that can accommodate the entire lighting device 10 .

In the lighting device 10 thus constituted, the speaker device 30 and the light emitting unit 50 operate with the electric power supplied by the power receiving unit 21, respectively. Hereinafter, the respective configurations of the speaker device 30 and the light-emitting portion 50 of the present embodiment will be described using the above-mentioned FIG. 3 , and FIG. 4 and FIG. 5 .

[1-2. Horn unit] FIG. 4 is a front view showing a schematic configuration of the lighting device 10 according to the embodiment. FIG. 5 is a cross-sectional view showing an outline of the configuration of the lighting device 10 according to the embodiment. Also, in FIG. 5 , the cross-section on the V-V line shown in FIG. 4 is simplified and illustrated; the speaker unit 33 , the speaker driving circuit 34 , the wireless communication unit 35 , and the lighting circuit 54 are illustrated with dotted lines. Sexual mapping.

As shown in FIG. 4 , when the lighting device 10 is viewed from the front, the horn device 30 is a circular device located in the center of the lighting device 10 , and the light-emitting portion 50 is arranged around it. The speaker device 30 is an example of a functional unit, and performs a predetermined operation by the electric power supplied from the power receiving unit 21 .

More specifically, as shown in FIGS. 3 and 5 , the speaker device 30 includes a speaker case 31 , a speaker unit 33 accommodated in the speaker case 31 , a front panel 32 arranged to cover the front opening of the speaker case 31 , and a speaker driver. circuit 34 and wireless communication unit 35 . The speaker driving circuit 34 and the wireless communication unit 35 are operated by the power supplied by the power receiving unit 21 .

The wireless communication unit 35 is a device that performs communication according to a predetermined standard such as Bluetooth (registered trademark), Wi-Fi (registered trademark), or ZigBee (registered trademark). The wireless communication unit 35 receives, for example, a signal such as music or sound transmitted from an external device (smart phone, tablet computer, personal computer, or audio playback device, etc.). The speaker driving circuit 34 drives the speaker unit 33 according to the signal. Thereby, the music or sound transmitted from the external device will be output by the speaker unit 33 . The front panel 32 located in front of the speaker unit 33 is formed with a plurality of sound holes for releasing sounds such as music or sound; the sound output from the speaker unit 33 is released to the lighting device 10 through the front panel 32 front. As a result, a user who exists in the space below the lighting device 10 arranged on the ceiling, for example, can hear the music, sound, etc. output from the speaker device 30 .

In the present embodiment, the speaker driving circuit 34 is formed of a plurality of circuit components arranged on the substrate 25 , and a part of the substrate 25 is used as a part of the light-emitting portion 50 . Specifically, as shown in FIG. 3 , the central portion of the main surface on the front side of the substrate 25 (the surface on the positive side of the Z-axis) is used as the first region 25a in which the speaker driving circuit 34 is arranged; The second region 25b of the 25a is used as a region for arranging a plurality of light-emitting elements 52 .

In addition, the board|substrate 25 is a board|substrate which uses a resin material as a base material, for example. The substrate 25 may also be a metal substrate substrate using a metal material as a substrate, or a ceramic substrate using a ceramic material as a substrate. Furthermore, the substrate 25 is not limited to a rigid substrate, and the substrate 25 may also be a flexible substrate using polyimide or the like as a base material, for example.

Furthermore, in the present embodiment, the substrate 25 is in the shape of a disk; however, for example, a circular (ring) substrate may be used as a substrate on which components such as a plurality of light-emitting elements 22 are arranged. In this case, the space on the back side of the speaker unit 33 and the internal space of the main body portion 20 of the lighting device 10 are continuous through the opening in the center of the substrate. Therefore, for example, the main body portion 20 can be made to function as a sound box to improve the sound quality of the speaker unit 33 . Furthermore, components that resonate with the sound output from the speaker unit 33 and the like can also be arranged in the inner space of the main body portion 20 to improve or change the sound quality of the speaker unit 33 .

Furthermore, the speaker device 30 may be, for example, a device called an intelligent speaker or an AI (Artificial Intelligence, artificial intelligence) speaker. That is to say, the speaker device 30 may also have the following functions: for example, according to the sound made by the user, obtain information through the network, and then read the obtained information (output by the speaker unit 33 as sound). Furthermore, the speaker device 30 can also have the following function: for example, according to the sound emitted by the user, it can control the actions of the surrounding household electrical appliances. That is, the speaker device 30 may also be provided with a microphone for acquiring sound, and a computer with a CPU (Central Processing Unit, central processing unit) and memory; Type sound operations to implement various processing.

[1-3. Light-emitting part] The light-emitting portion 50 is a light-emitting module having a plurality of light-emitting elements 52 . Specifically, as shown in FIGS. 3 and 5 , the light emitting unit 50 includes a light source unit 51 including a plurality of light emitting elements 52 , and a light guide plate 55 arranged in front of the light source unit 51 . In the present embodiment, a plurality of light emitting elements 52 are arranged in a ring shape in the second region 25 b of the substrate 25 , and emit light by the power supplied by the lighting circuit 54 . In addition, the plurality of light-emitting elements 52 may be arranged on another substrate different from the substrate 25 .

Each of the plurality of light-emitting elements 52 is, for example, an SMD (Surface Mount Device) type LED (Light Emitting Diode) element that emits white light. The light-emitting element 52 includes a package having a concave portion, an LED die embedded in the bottom surface of the concave portion of the package, and a packaging member that fills the concave portion of the package and encapsulates the LED die. The LED die is, for example, a blue LED die that emits blue light; the packaging member is, for example, a silicone resin containing yellow phosphor particles such as yttrium aluminum garnet (YAG) as a wavelength conversion material.

The lighting circuit 54 is formed of, for example, a plurality of circuit parts (not shown) arranged on the back side (the Z-axis negative direction side) of the substrate 25, and converts the electric power received through the power receiving unit 21 into a plurality of corresponding numbers The electric power characteristic of each light-emitting element 52 is then supplied to the plurality of light-emitting elements 52 . Thereby, the plurality of light-emitting elements 52 emit light. Furthermore, the lighting circuit 54 controls the plurality of light-emitting elements 52 according to the control signal sent from the terminal device such as a remote controller and through wireless communication or wired communication, thereby controlling the lighting of the plurality of light-emitting elements 52 . Lighting actions such as lights and lights out.

In addition, the lighting circuit 54 may perform dimming control or color adjustment control of the light source portion 51 having a plurality of light emitting elements 52 . Furthermore, the lighting circuit 54 can also be formed by a plurality of circuit parts arranged on another substrate different from the substrate 25 ; furthermore, it can also be accommodated in another casing different from the lighting device 10 . Furthermore, the lighting circuit 54 may use the wireless communication unit 35 in order to exchange control signals and the like with the terminal device. That is to say, the wireless communication part 35 can also be shared by the speaker device 30 and the light-emitting part 50 .

Furthermore, in FIG. 5 , the speaker driving circuit 34 and the lighting circuit 54 are shown as different ones, but these circuits do not need to be completely distinguished; the lighting device 10 can also be set to have the two circuits. 1 control circuit for the function of 1 circuit.

In addition, in the present embodiment, the light guide plate 55 is an optical member formed of a material such as resin or glass with high light transmittance, for example. In the present embodiment, the light guide plate 55 has a degree of transparency such that the speaker housing 31 and the front panel 32 of the speaker device 30 can still be seen through the light guide plate 55 from the outside of the lighting device 10 . Moreover, the light guide plate 55 may have light-diffusing properties by, for example, containing a light-diffusing agent, or by surface treatment such as embossing.

As shown in FIG. 4 , the light guide plate 55 of the present embodiment has a shape that follows the outer shape of the speaker device 30 when viewed from the front. That is to say, the light guide plate 55 is annular and follows the outer shape of the circular horn device 30 . Furthermore, a plurality of light-emitting elements 52 are arranged at positions facing the rear end face of the light guide plate 55 (the end face on the negative Z axis side); In the front-rear direction (Z-axis direction), it is located more forward than the horn device 30 . That is, the light guide plate 55 can guide the light emitted by the light source unit 51 located further behind the front surface of the speaker device 30 (the surface on the front side of the front panel 32 ) to the front of the speaker device 30 . and released.

Furthermore, as shown in FIG. 5 , in this embodiment, a part of the end surface 56 at the front end of the light guide plate 55 is formed to be inclined with respect to the front-rear direction (Z-axis direction). In short, the end face 56 of the light guide plate 55 has an obliquely cut shape. Thereby, for example, the light distribution control of the light emitted from the light guide plate 55 is performed. 5, only a part of the end surface 56 of the light guide plate 55 is formed inclined with respect to the front-rear direction; however, the entire end surface 56 may be formed inclined with respect to the front-rear direction.

[2. Effects, etc.] As described above, the illuminating device 10 of the present embodiment emits illuminating light to the front, and the illuminating device 10 includes the power receiving unit 21, the socket 80 which is detachably attached to the outside, and the socket 80 receives electric power; a speaker; The device 30 as a functional unit uses the electric power supplied by the power receiving unit 21 to execute a predetermined operation; and the light emitting unit 50 . The light-emitting portion 50 is arranged to surround the speaker device 30 along the outer shape of the speaker device 30 when viewed from the front, and emits illumination light using the electric power supplied by the power receiving portion 21 . The front end portion of the light-emitting portion 50 is positioned further forward than the horn device 30 in the front-rear direction.

With this configuration, when the lighting device 10 is viewed from the front, the horn device 30 and the light-emitting portion 50 are arranged at adjacent positions in the lateral direction. Thereby, the thickness of the lighting device 10 can be reduced compared to, for example, the case where the light-emitting portion and the speaker device 30 are arranged in the front-rear direction. Furthermore, even when viewed from the front, the emitting portion of the illumination light from the light-emitting portion 50 is aligned with the speaker device 30, but since the front end of the emitting portion is further forward than the speaker device 30, it is The illuminating light emitted by the light-emitting portion 50 is not obstructed by the speaker device 30 . Furthermore, since the light-emitting portion 50 is arranged to surround the speaker device 30, for example, when looking up at the lighting device 10 installed on the ceiling, the possibility that the speaker device 30 having no light-emitting function looks like a shadow can be reduced. That is, in appearance, it is difficult to form a dark part in the lighting device 10 .

As described above, according to the lighting device 10 of the present embodiment, the speaker device 30 is provided as a functional part for performing a predetermined operation, and the size can be reduced.

Furthermore, in the lighting device 10 of the present embodiment, when viewed from the front, the speaker device 30 is circular, and the light-emitting portion 50 is circular.

That is, when viewed from the emission direction of the illuminating light, the illuminating device 10 has a structure in which the circular horn device 30 is provided at the center of the annular light-emitting portion 50 . Therefore, for example, when the lighting device 10 is mounted on the socket 80 , it is not necessary to pay attention to the rotational position of the lighting device 10 around the Z axis during the mounting. In other words, even when the lighting device 10 is to be rotated around the Z axis, the appearance of the lighting device 10 is substantially the same as the state before the rotation. Furthermore, since the illumination light is emitted radially from the annular light-emitting portion 50, even when the illumination device 10 is rotated around the Z axis, the emission range of the illumination light will be the same as that before the rotation. The release range is roughly the same. Therefore, the lighting device 10 can be mounted without changing the emission range of the illumination light regardless of the rotational position of the pair of power supply holes 82 on the socket 80, for example. That is, the lighting device 10 of the present embodiment can be reduced in size, and the selection range of the lamp socket to be installed is also wide.

Furthermore, in the lighting device 10 of the present embodiment, the light emitting portion 50 includes a light guide plate 55 whose shape follows the outer shape of the speaker device 30 , and a plurality of light emitting elements 52 arranged to face the rear end surface of the light guide plate 55 .

In this way, the present embodiment has a structure in which the light from the plurality of light-emitting elements 52 is guided by the light guide plate 55 to the front of the speaker device 30 . Thereby, the light-emitting portion 50 can be configured to emit appropriate illumination light according to the thickness (width in the Z-axis direction) of the speaker device 30 by, for example, adjusting the length of the light guide plate 55 in the front-rear direction. Furthermore, since the plurality of light-emitting elements 52 are arranged on the outer peripheral portion of the lighting device 10, for example, the heat dissipation of the plurality of light-emitting elements 52 can be efficiently performed. Therefore, when an LED element is used as the light emitting element 52 as in the present embodiment, the reduction in luminous efficiency due to heat can be suppressed.

Furthermore, in the lighting device 10 of the present embodiment, at least a part of the end surface 56 of the front end of the light guide plate 55 serving as the front end of the light-emitting portion 50 is formed to be inclined with respect to the front-rear direction.

In this way, by inclining at least a part of the end face 56 of the light guide plate 55 that is closest to the object to which the illumination light is irradiated (that is, the frontmost), it is possible to efficiently control, for example, the amount of illumination light emitted from the light guide plate 55. Lighting angle. As a result, for example, the possibility of glare at the front end of the light guide plate 55 is reduced.

In addition, the aspect of the light-emitting portion and the functional portion in the lighting device 10 is not limited to the aspect described in the above-mentioned embodiment. In view of this, modifications of the light-emitting portion and the functional portion of the lighting device 10 will be described below, mainly for the parts different from those of the above-described embodiment.

(Variation 1) FIG. 6 is a cross-sectional view showing an outline of the configuration of an illumination device 10 a according to Modification 1 of the embodiment. In addition, the cross-sectional position in FIG. 6 is based on the cross-sectional position of the lighting device 10 in FIG. 5 described above, and the illustration of the lighting circuit 54 is omitted. These matters are also the same in FIGS. 7 to 9 described later. Furthermore, in FIG. 6 , the speaker device 30 is schematically drawn with a hatched rectangle.

The lighting device 10 a shown in FIG. 6 includes a speaker device 30 as a functional part, and a light-emitting part 50 . The light-emitting portion 50 is disposed so as to surround the speaker device 30 when viewed from the front (positive Z-axis direction). This is a common point between the lighting device 10a of this modification and the lighting device 10 of the above-described embodiment.

In this modification, the light guide plate 55a included in the light-emitting portion 50 has a curved portion 55b that expands outward as it goes forward, and a front surface portion 55c connected to the curved portion 55b, and the front surface portion 55c is formed in the A light-emitting surface that expands in the "direction that intersects the front-rear direction". The lighting device 10a of the present modification is different from the lighting device 10 of the above-described embodiment based on this configuration. More specifically, the light guide plate 55a of the present modification has a front surface portion 55c that forms a light-emitting surface extending in a direction orthogonal to the front-rear direction (direction parallel to the XY plane).

With this configuration, since the light-emitting portion 50 can emit illuminating light from a large light-emitting surface, the lighting device 10a can be used as the main lighting of the living room (for example, called "ceiling light").

In addition, for example, on the front surface portion 55c of the light guide plate 55a and the surface on the opposite side (the Z-axis negative direction side) to the light emitting surface, in order to efficiently discharge light from the light emitting surface, a fine concavo-convex structure may be formed, or A reflective film that reflects light is arranged.

(Variation 2) FIG. 7 is a cross-sectional view showing an outline of the configuration of an illumination device 10b according to Modification 2 of the embodiment. In addition, the sensor device 60 and its constituent elements are schematically drawn with dotted lines.

The lighting device 10b shown in FIG. 7 is different from the lighting device 10 of the above-described embodiment in that a sensor device 60 is provided as a functional unit that performs a predetermined operation using the power supplied by the power receiving unit 21 .

The sensor device 60 includes a sensor housing 61 , a sensor 62 for detecting surrounding conditions, a sensor control unit 64 for controlling the sensor 62 , and a wireless communication unit 65 . Examples of the sensor 62 include infrared sensors, image sensors, and millimeter-wave sensors that detect objects such as people, and temperature sensors and humidity sensors that detect values related to the surrounding environment. , and illumination sensors, etc.

The sensor device 60 configured in this way performs, for example, the following operations. The wireless communication unit 65 receives control signals transmitted from external devices such as a dedicated remote controller or a smart phone. The sensor control unit 64 controls the operation of the sensor 62 in response to the control signal, and transmits the result detected by the sensor 62 to the external device via the wireless communication unit 65 . Thereby, for example, the external device can also obtain information such as whether there is a person in the space in which the lighting device 10b is arranged, or the temperature or brightness of the space.

Furthermore, the light-emitting portion 50 can also perform the light-emitting action according to the detection result of the sensor 62 obtained by the sensor control portion 64 . For example, if the detection result of the sensor 62 of the infrared sensor indicates that there is a person, the light emitting part 50 makes the light source part 51 emit light. After that, if the result detected by the sensor 62 indicates that no one exists, the light-emitting part 50 stops the light-emitting part 51 from emitting light.

In this way, the lighting device 10b of the present modification can notify the external device of the detection result of the sensor device 60 . Furthermore, the lighting device 10b can perform a light-emitting action according to the detection result of the sensor device 60 .

Furthermore, in the lighting device 10b of the present modification, since the front end of the light-emitting portion 50 is located further forward than the sensor device 60, the illumination light emitted from the light-emitting portion 50 is not affected by the sensor. Device 60 gets in the way. Furthermore, by arranging the sensor 62 in the central portion of the lighting device 10b when viewed from the front, it is possible to suppress, for example, the light-emitting portion 50 (more specifically, the light guide plate) around the sensor device 60. 55), the influence on the detection range of the sensor 62. Furthermore, since the light-emitting portion 50 is arranged to surround the sensor device 60 , the possibility that the sensor device 60 having no light-emitting function looks like a shadow can be reduced when looking up at the lighting device 10 installed on the ceiling, for example.

(Variation 3) FIG. 8 is a cross-sectional view showing an outline of the configuration of an illumination device 10c according to Modification 3 of the embodiment. In addition, the ion generator 70 and its constituent elements are schematically drawn with broken lines.

The lighting device 10c shown in FIG. 8 is different from the lighting device 10 of the above-described embodiment in that an ion generator 70 is provided as a functional unit that performs a predetermined operation using the electric power supplied from the power receiving unit 21 .

The ion generator 70 includes an ion generator case 71 , an ion generation unit 72 that generates ions by applying a high voltage to moisture in the air, and a generation control unit 74 that controls the ion generation unit 72 .

The ion generator 70 constructed in this way performs the following operations, for example. Once the power supply from the power reception unit 21 is started, the generation control unit 74 starts the generation of ions by operating the ion generation unit 72 . The ions generated by the ion generating unit 72 are released to the space in which the lighting device 10c is arranged. In addition, the operation of the ion generator 70 for generating and releasing ions may be performed synchronously with the light-emitting operation of the light-emitting portion 50 , or may be performed asynchronously with the light-emitting operation of the light-emitting portion 50 . For example, the operation of the ion generator 70 may be controlled by a control signal transmitted from an external device such as a remote controller or a smartphone.

In the lighting device 10c of the present modification, the ions generated by the ion generator 70 can be released to the space in which the lighting device 10c is arranged, thereby improving the air environment in the space, for example.

Furthermore, in the lighting device 10 c of the present modification, since the front end of the light-emitting portion 50 is located further forward than the ion generator 70 , the illumination light emitted from the light-emitting portion 50 is not emitted by the ion generator 70 . hinder. Furthermore, by arranging the emission position of ions in the central portion of the lighting device 10c when viewed from the front, it is possible to suppress, for example, the light emitting portion 50 (more specifically, the light guide plate) around the ion generator 70. 55), the effect on the release range of ions. Furthermore, since the light-emitting portion 50 is arranged to surround the ion generator 70, the possibility that the ion generator 70 having no light-emitting function looks like a shadow can be reduced when looking up at the lighting device 10c mounted on the ceiling, for example. (Variation 4) FIG. 9 is a partial cross-sectional view showing the outline of the configuration of an illumination device 10d according to Modification 4 of the embodiment. 9, in the main body part 120, only the part close to the speaker device 30 and the light emitting part 150 is shown in cross section; as for the part close to the power receiving part 121, it is shown in side view. The lighting device 10 d shown in FIG. 9 includes a speaker device 30 as a functional unit, and a light-emitting unit 150 . The light-emitting portion 150 is disposed so as to surround the speaker device 30 when viewed from the front (positive Z-axis direction). This is a common point between the lighting device 10d of this modification and the lighting device 10 of the above-described embodiment. In this modification, the light-emitting portion 150 includes a light-source portion 51 composed of a plurality of light-emitting elements 52 , and a light-source cover 155 covering the light-source portion 51 . Specifically, the light-emitting portion 150 includes: a light source cover 155 along the shape of the outer shape of the speaker device 30 , and a plurality of light-emitting elements 52 covered by the light source cover 155 . The light source cover 155 has a front surface portion 156 forming a front end portion of the light-emitting portion 150 . The front portion 156 is disposed separately from the plurality of light-emitting elements 52 and transmits light from the plurality of light-emitting elements 52 . In this way, in this modification, the light source cover 155 that forms the light passing space in front of the light emitting element 52 is used instead of the light guide plate as the member that emits the light from the light emitting element 52 as illumination light. The light source cover 155 is, for example, a milky white translucent cover body formed of a resin material in which light-diffusing particles are dispersed, and can diffuse the light emitted by the light-emitting element 52 for release. More specifically, in the front surface portion 156 , in addition to the light directly incident from the light-emitting element 52 , the light that has been reflected once or more in the light source cover 155 is incident. The light incident on the front surface portion 156 is diffused and released at the front surface portion 156 . Thereby, the illumination light is released from the light-emitting portion 150 toward the front. Also in this case, since the speaker device 30 and the light-emitting portion 150 are arranged at adjacent positions in the lateral direction, compared with the case where the light-emitting portion and the speaker device 30 are arranged in the front-rear direction, the thickness of the lighting device 10d can be reduced. thin. Furthermore, the illuminating light emitted from the light-emitting portion 150 will not be obstructed by the speaker device 30; and since the light-emitting portion 150 is arranged to surround the speaker device 30, the possibility that the speaker device 30 without the light-emitting function looks like a shadow can be reduced. sex. That is, in appearance, it is difficult to form a dark part in the lighting device 10d. As described above, according to the lighting device 10d of the present modification, the speaker device 30 can be provided as a functional part for performing a predetermined operation, and the size can be reduced. In addition, the light source cover 155 does not necessarily need to be formed of a resin material in which light-diffusing particles are dispersed. For example, the light diffusing function can also be realized by forming a milky white light diffusing film or micro unevenness on the inner surface or the outer surface of the light source cover 155 . Furthermore, the light source cover 155 does not necessarily have a light diffusing function, and the light source cover 155 may be formed of, for example, glass or resin having a visible light transmittance that is transparent in appearance. In addition, in this modification, a screw base such as an E26 base is used as the power receiving unit 121 . Thereby, it is possible to attach and use the lighting device 10d not only to the power supply equipment fixed to the ceiling, but also to the power supply equipment (lamp socket) included in the desk lamp placed on the table or the floor. In addition, the lighting device 10d may not include a screw base, but may include a power receiving unit having a pair of base pins like the power receiving unit 21 of the embodiment. Furthermore, in this modification, the light source cover 155 has a side wall portion 157 that forms a side wall on the opposite side of the speaker device 30 and reflects at least a part of the light from the plurality of light-emitting elements 52 and guides it to the front. Section 156. Specifically, in this modification, the side wall portion 157 is a portion provided integrally with the front surface portion 156 , and is formed of, for example, a resin material in which light-diffusing particles are dispersed. Therefore, the side wall portion 157 can also transmit at least a part of the light from the plurality of light emitting elements 52 . In this way, the light source cover 155 can efficiently release the light from the plurality of light emitting elements 52 of the light emitting portion 150 to the front from the front portion 156 and also to the side from the side wall portion 157 . Therefore, when the illuminating device 10d is attached to the socket of a desk lamp as described above, the illuminating device 10d can emit light toward the hood of the desk lamp. In this way, the light scene effect caused by the light reflection or transmission of the light shield can be obtained. Moreover, the light source cover 155 of this modification has the inner wall part 158 provided integrally with the front surface part 156 and the side wall part 157. The inner wall portion 158 forms the part of the side wall of the light source cover 155 close to the side of the speaker device 30; in this modification, it is the same as the side wall portion 157, which can transmit at least a part of the light from the plurality of light-emitting elements 52 and make the light source 52 pass through. At least a portion of the light rays from the plurality of light emitting elements 52 are reflected and guided to the front surface portion 156 . When it is not necessary to emit light from the inner wall portion 158 to the speaker device 30 side, for example, the inner surface of the inner wall portion 158 can be made white to increase the amount of light emitted by the front portion 156 and the side wall portion 157 . Furthermore, in the light source cover 155, the front surface portion 156, the side wall portion 157, and the inner wall portion 158 need not be integrally provided, and the light source cover 155 may be formed by combining the respective members. Furthermore, although the lighting device 10d includes the speaker device 30 as the functional part in this modification, the lighting device 10d may also include other types of functional parts such as the sensor device 60 and/or the ion generator 70 .

(Other Embodiments) As mentioned above, although the lighting device of this invention was demonstrated based on embodiment and its modification, this invention is not limited to the said embodiment and modification. In view of this, other embodiments of part or all of the lighting device 10 will be exemplified below. In addition, other embodiments described below can also be applied to various lighting devices 10a to 10d of Modifications 1 to 4.

For example, the substrate 25 included in the lighting device 10 may be a light source substrate for embedding a plurality of light-emitting elements 52 . That is, the circuit including the functional parts such as the speaker device 30 and the lighting circuit 54 may be arranged on another substrate different from the substrate 25 . In this case, the base plate 25 may also be formed in a ring shape along the outer shape of the functional parts such as the horn device 30 . Furthermore, the ring-shaped substrate 25 may be constituted by a plurality of substrates arranged in a ring shape. In addition, the speaker device 30, the sensor device 60, and the ion generator 70 have been exemplified as the functional parts provided in the lighting device 10, but the types of functional parts are not limited to these. For example, a communication device such as a router of a wireless LAN (Local Area Network) or an access point may be provided in the lighting device 10 as a functional unit. Furthermore, the lighting device 10 may be provided with a functional portion having a plurality of functions, for example, a function of a speaker device for outputting sound, a function for a sensor device for detecting surrounding conditions, and a plurality of functions.

In any case, the lighting device 10 is a device configured to illuminate a predetermined space such as an indoor space, so there is a low possibility that there is a fixed object in front of the lighting device that blocks the lighting light. Therefore, it can be said that the sound, radio waves, light signals, etc. emitted by the functional department are less likely to be blocked by fixed objects; furthermore, the sound, brightness, radio waves, etc. acquired (detected, received) by the functional department, It is also less likely to be obscured by fixtures. That is, by providing the functional part such as the speaker device 30 in the lighting device 10, the state in which the functional part is placed can be easily performed as expected.

Furthermore, the functional units such as the speaker device 30 included in the lighting device 10 may perform wired communication via a signal line instead of wireless communication when communicating with an external device.

In addition, the type of the lighting device to which the structure of the lighting device 10 is applied is not limited to, for example, a downlight ceiling lamp or a ceiling lamp. For example, the structure of the lighting device 10 can also be applied to a hanging chandelier, a spotlight installed outdoors or indoors, or the like.

In addition, the light guide plate 55 may be provided with, for example, one or more through holes (holes penetrating in the plate thickness direction). For example, if the lighting device 10 includes the speaker device 30 as a functional part, the light guide plate 55 may be provided with a plurality of through holes so that the sound output by the speaker device 30 can be easily released toward the outer peripheral side of the light guide plate 55 . Furthermore, if the lighting device 10 is provided with the ion generator 70 as a functional part, in order to make the ions released by the ion generator 70 easily released toward the outer peripheral side of the light guide plate 55 , a plurality of ions may be provided on the light guide plate 55 . through hole.

In addition, the power receiving part with which the lighting apparatus 10 is equipped does not necessarily have the structure of a GX53 base. For example, the power receiving portion of the lighting device 10 may also have a structure corresponding to the GH76p base. That is, the power receiving unit included in the lighting device 10 may be, for example, capable of being attached to a socket to be connected in a detachable state, and configured to receive power.

Furthermore, the lamp socket to be mounted on the lighting device 10 may also be arranged on a structure other than the ceiling. For example, the lighting device 10 may be mounted on a lamp socket disposed on an indoor or outdoor wall surface, or a lamp socket supported by a support member extending from the wall surface.

Furthermore, the light-emitting element 52 may not be an SMD-shaped LED element, but the LED die itself. That is to say, the light-emitting portion 50 may also have a COB (Chip On Board) structure, that is, for example, a plurality of light-emitting elements 52 (LED chips) directly embedded in the substrate 25 to contain phosphor particles of light-transmitting resin material to encapsulate.

In addition, the light-emitting element 52 included in the light-emitting portion 50 is not limited to an LED die or an element using an LED die. For example, a solid-state light-emitting element other than an LED die such as a semiconductor laser or organic EL (Electro Luminescence) can also be used as the light-emitting element 52 .

In addition, those skilled in the art can apply various modifications to the above-described embodiments as contemplated by those skilled in the art, or can be realized by arbitrarily combining the constituent elements and functions of the respective embodiments without departing from the spirit of the present invention. Forms are also included in the present invention.

10, 10a, 10b, 10c, 10d‧‧‧Lighting device 20, 120‧‧‧Main body 21, 121‧‧‧Reception Department 22‧‧‧Lamp head pins 25‧‧‧Substrate 25a‧‧‧First area 25b‧‧‧Second area 30‧‧‧Speaker device (functional department) 31‧‧‧Speaker housing 32‧‧‧Front panel 33‧‧‧Speaker unit 34‧‧‧Speaker driver circuit 35‧‧‧Wireless Communication Department 50, 150‧‧‧Light-emitting part 51‧‧‧Light source 52‧‧‧Light-emitting element 54‧‧‧Lighting circuit 55, 55a‧‧‧Light guide plate 55b‧‧‧Bending part 55c, 156‧‧‧Front 56‧‧‧End face 60‧‧‧Sensor device (functional part) 61‧‧‧Sensor housing 62‧‧‧Sensor 64‧‧‧Sensor Control Section 65‧‧‧Wireless Communication Department 70‧‧‧Ion generator (functional department) 71‧‧‧Ion generator housing 72‧‧‧Ion generation part 74‧‧‧Generation Control Department 80‧‧‧Lamp holder 82‧‧‧Power supply hole 90‧‧‧ceiling 155‧‧‧Light source cover 157‧‧‧Sidewall 158‧‧‧Inner wall

[Fig. 1] Fig. 1 is a first perspective view showing the appearance of the lighting device according to the embodiment. [Fig. 2] Fig. 2 is a second perspective view showing the appearance of the lighting device according to the embodiment. [Fig. 3] Fig. 3 is an exploded perspective view of the lighting device according to the embodiment. [Fig. 4] Fig. 4 is a front view showing the outline of the configuration of the lighting device according to the embodiment. [Fig. 5] Fig. 5 is a cross-sectional view showing the outline of the configuration of the lighting device according to the embodiment. [ Fig. 6] Fig. 6 is a cross-sectional view showing an outline of the configuration of an illumination device according to Modification 1 of the embodiment. [ Fig. 7] Fig. 7 is a cross-sectional view showing an outline of the configuration of an illumination device according to Modification 2 of the embodiment. [ Fig. 8] Fig. 8 is a cross-sectional view showing an outline of the configuration of an illumination device according to Modification 3 of the embodiment. [ Fig. 9] Fig. 9 is a partial cross-sectional view showing the outline of the configuration of a lighting device according to Modification 4 of the embodiment.

10‧‧‧Lighting

20‧‧‧Main body

30‧‧‧Speaker device (functional department)

50‧‧‧Light-emitting part

Claims (6)

An illuminating device that emits illuminating light to the front; the illuminating device includes: a power receiving part, which is detachably mounted on an external power supply device, and receives power from the power supply device; a functional part that uses the power supplied by the power receiving part to execute a predetermined action; and a light-emitting portion arranged to surround the functional portion along the outer shape of the functional portion when viewed from the front, and to emit the illumination light using the electric power supplied by the power-receiving portion; the front end of the light-emitting portion The light emitting part includes: a light source cover, which has a shape along the outer shape of the functional part; and a plurality of light emitting elements, which are covered by the light source cover The light source cover has: a front part, forming the front end part of the light-emitting part, the front part is separated from the plurality of light-emitting elements, and makes the light from the plurality of light-emitting elements transmit; the light source cover further has: a side wall part , the side wall on the opposite side of the functional part is formed by a resin material dispersed with light diffusing particles, and at least a part of the light from the plurality of light-emitting elements is reflected and guided to the front surface. The lighting device of claim 1, wherein the side wall portion further transmits at least a part of the light from the plurality of light-emitting elements. An illuminating device that emits illuminating light to the front; the illuminating device includes: a power receiving part, which is detachably mounted on an external power supply device, and receives power from the power supply device; a functional part that uses the power supplied by the power receiving part to execute a predetermined action; and a light-emitting portion, arranged to surround the functional portion along the outer shape of the functional portion when viewed from the front, and to emit the illuminating light using the electric power supplied by the power-receiving portion; The front end portion of the light-emitting portion is positioned further forward than the functional portion in the front-rear direction; the light-emitting portion includes: a light guide plate having a shape along the outer shape of the functional portion; and a plurality of light-emitting elements arranged facing the rear end face of the light guide plate; the front end portion of the light-emitting portion is also the front end portion of the light guide plate, and the front end portion extends linearly along the front-rear direction, and at least one of the end faces in the front end portion A part is formed inclined with respect to this front-back direction. An illuminating device that emits illuminating light to the front; the illuminating device includes: a power receiving part, which is detachably mounted on an external power supply device, and receives power from the power supply device; a functional part that uses the power supplied by the power receiving part to execute a predetermined action; and a light-emitting portion arranged to surround the functional portion along the outer shape of the functional portion when viewed from the front, and to emit the illumination light using the electric power supplied by the power-receiving portion; the front end of the light-emitting portion The light emitting part includes: a light guide plate having a shape along the outer shape of the functional part; and a plurality of light emitting elements, arranged to be connected with the light guide plate The rear end faces face each other; the light guide plate includes: a curved portion that expands outward toward the front; and a front portion connected to the curved portion, and the front portion is formed to expand in a direction orthogonal to the front-rear direction. The light-emitting surface; the length of the front portion extending from the curved portion to the direction orthogonal to the front-rear direction is longer than the length of the light-guiding plate in the front-rear direction. The lighting device according to any one of claims 1 to 4, wherein, when viewed from the front, the functional portion is circular, and the light-emitting portion is annular. For the lighting device according to any one of items 1 to 4 in the scope of the application, wherein, The functional part is any one of a sensor device that detects surrounding conditions, a speaker device that emits sound, and an ion generator.

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