JP2014220160A - Light source for illumination and lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light source for illumination that allows a user to selectively add a function to a lighting device, which is not capable of extending functions, and stably use the function.SOLUTION: A function addition device is connected with a light source for illumination 100. The light source for the illumination 100 includes: a light emitting part; a first connection part 190 where the function addition device is detachably connected to allow the first connection part 190 to receive a control signal, which is used for controlling light emission of the light emitting part, from the function addition device; and a body part including a light emitting surface which extracts light from the light emitting part, a side surface provided around the light emitting surface, and an installation surface which is opposite to the light emitting surface, the body part storing the light emitting part. The first connection part 190 is provided on the side surface of the body part or the installation surface of the body part.

Description

  The present invention relates to an illumination light source, and more particularly to an illumination light source capable of expanding functions.

  Solid light-emitting elements such as light emitting diodes (LEDs) are expected to serve as light sources for various products because of their small size, high efficiency, and long life. Among them, in recent years, research and development of illumination light sources using LEDs have been promoted. The lighting light source as described above is attached to a lighting fixture and operates as a lighting device.

  On the other hand, a technique is known in which a function expansion terminal is provided in a lighting fixture and a function plug is attached to the function extension terminal to add a function to the lighting fixture (for example, see Patent Document 1).

JP 2002-110376 A

  In the technique described in Patent Document 1, since the function is added to the lighting fixture, the function cannot be added to the lighting fixture in which the function expansion terminal is not provided. In addition, depending on the position of the function expansion terminal, the added function may not be stably used, such as foreign matter adhering to the function expansion terminal or the function plug falling off.

  An object of the present invention is to provide an illumination light source or the like that allows a user to selectively add a function to a lighting fixture that does not support the expansion of the function and that can stably use the function. .

  In order to achieve the above object, an illumination light source according to one embodiment of the present invention includes a light emitting unit and the external device connected to receive a control signal used to control light emission of the light emitting unit from an external device. A light emitting surface for taking out light from the light emitting portion, a side surface provided around the light emitting surface, and an installation surface that is a surface opposite to the light emitting surface. And the first connection part is provided on the side surface of the main body part or the installation surface of the main body part.

  Further, the shutter includes a shutter part that can be opened and closed, and the first connection part is covered by the shutter part when the shutter part is closed, and the first connection is achieved by opening the shutter part. The unit may be in a state in which the external device can be connected.

  The illumination light source further includes a control unit that controls light emission of the light emitting unit according to the control signal received from the external device connected to the first connection unit, and the shutter unit further includes: The control part and the first connection part are electrically connected in a state where the shutter part is opened, and the control part and the first connection part are electrically connected in a state where the shutter part is closed. A switch for releasing the connection may be provided.

  The first connection portion is provided on a first surface that is a part of the side surface of the main body, and the illumination light source further includes the first surface, You may provide the movable part for changing direction.

  Further, the side surface of the main body portion is provided with a concave portion that is recessed toward the inside of the main body portion, and the first connection portion is provided on a surface that forms the concave portion of the side surface of the main body portion. May be.

  Further, the shape of the concave portion may be a shape corresponding to the outer shape of the external device.

  The external device may be connected to the first connection portion via a cable, and the illumination light source may further include a groove for passing the cable on the side surface of the main body portion.

  The external device is connected to the first connection portion via a cable, and the illumination light source further includes a cable holding portion for holding the cable at a peripheral portion of the light emitting surface of the main body portion. May be.

  An illumination device according to one embodiment of the present invention includes the illumination light source according to any one of the above embodiments.

  ADVANTAGE OF THE INVENTION According to this invention, a user can selectively add a function also to the lighting fixture which does not respond | correspond to the expansion of a function, and can use the said function stably.

It is a perspective view when the LED unit which concerns on Embodiment 1 is seen from the light irradiation side. It is a perspective view when the LED unit to which the function addition device is connected is viewed from the light irradiation side. It is the side view and sectional drawing of the LED unit which concern on Embodiment 1. FIG. 3 is a functional block diagram of an LED unit and a function addition device according to Embodiment 1. FIG. It is sectional drawing of an illuminating device provided with the LED unit which concerns on Embodiment 1. FIG. It is a side view of an LED unit provided with a cable holding part. It is a perspective view of an LED unit provided with a shutter part. It is a perspective view of the LED unit in which the 1st connection part was provided in the installation surface of the main-body part. It is sectional drawing of an illuminating device provided with the LED unit in which the 1st connection part was provided in the installation surface of the main-body part. It is a perspective view which shows the LED unit to which the function addition apparatus without a cable is connected. It is a perspective view of the LED unit which can change the direction of the surface in which a 1st connection part is provided.

  Hereinafter, a light source for illumination and a function addition device according to an embodiment of the present invention will be described with reference to the drawings. Note that each of the embodiments described below shows a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, components, component arrangement positions, connection forms, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements.

  In the following embodiments, an LED unit (LED lamp) used in an LED illumination device such as a downlight or a spotlight, which is an example of an illumination light source, and a function addition device (external device) externally attached thereto explain. Each figure is a schematic diagram and is not necessarily shown strictly. Moreover, in each figure, the same code | symbol is attached | subjected to the substantially same structure, The overlapping description is abbreviate | omitted or simplified.

(Embodiment 1)
1A is a perspective view when the LED unit according to Embodiment 1 is viewed from the light irradiation side, and FIG. 1B is a perspective view when the LED unit to which the function addition device is connected is viewed from the light irradiation side. It is.

  As shown in FIGS. 1A and 1B, an LED unit 100 according to Embodiment 1 is an LED unit 100 having a flat thin structure whose overall shape is a disk shape or a flat shape, and includes a translucent cover 110 and a housing. The body 120 and the support stand 130 constitute a main body. As the base structure of the LED unit 100, for example, a GX53 base or a GH76p base is adopted.

  The LED unit 100 is attached to a lighting fixture by rotating in a predetermined rotation direction. For example, as shown in FIG. 1A, the LED unit 100 can be attached to the lighting fixture by rotating the LED unit 100 in the rotation direction R around the lamp axis J. Moreover, the LED unit 100 can be removed from the lighting fixture by rotating the LED unit 100 about the lamp axis J in the direction opposite to the rotation direction R.

  In the first embodiment, the light irradiation side is a side from which light is emitted, and is a side from which light is extracted from the LED unit 100 (light irradiation side) on the basis of the LED unit 100. In FIG. 1A and FIG. 1B, it has illustrated so that the light irradiation side may become an upper side.

  As shown in FIG. 1A, the LED unit 100 includes a first connection portion 190 on the side surface of the housing 120. As illustrated in FIG. 1B, the second connection unit 210 of the function adding device 200 is connected to the first connection unit 190. That is, the function adding device 200 is connected to the LED unit 100.

  The function adding device 200 is a device that adds a function to the LED unit 100 by being connected to the LED unit 100. In the first embodiment, the function addition device 200 detects infrared rays by the sensor unit 250 (function addition unit), and transmits a control signal for controlling turning on and off of the LED unit 100 to the LED unit 100.

  When the function adding device 200 is not connected, the LED unit 100 performs an operation of turning on and off according to ON / OFF of a switch provided on a wall or the like as usual.

  When the function adding device 200 is connected by the user, the LED unit 100 operates as an LED unit with a so-called human sensor that detects infrared rays, and after the infrared rays are detected, the LED unit 100 is turned on for a certain time and then automatically turned off. Do. That is, the function adding device 200 adds an infrared detection function to the LED unit 100.

  Next, a detailed configuration of the LED unit 100 according to Embodiment 1 will be described with reference to FIG. FIG. 2 is a side view and a cross-sectional view of the LED unit 100 according to the first embodiment. 2A is a side view of the LED unit 100, and FIG. 2B is a cross-sectional view of the LED unit 100. 2 is a view when the light irradiation side is the lower side, and is a cross-sectional view of the LED unit 100 in a state where the function addition device 200 is connected.

  As shown in FIG. 2, the LED unit 100 according to the first embodiment includes a translucent cover 110, a housing 120, a support base 130, an LED module 140, a reflector 150, a circuit board 160 ( Drive circuit), a heat conductive sheet 170, a connection pin 180, and a first connection portion 190.

  The translucent cover 110 is made of a translucent material in order to take out the light emitted from the LED module 140 to the outside of the lamp. For example, a resin material such as acrylic (PMMA) or polycarbonate (PC) is used. It is configured. The translucent cover 110 may have a transparent structure without light diffusibility or a diffusion structure with light diffusibility. For example, a milky white light diffusing film may be formed by applying a resin or white pigment containing a light diffusing material such as silica or calcium carbonate on the inner surface of the translucent cover 110, or fine irregularities may be formed on the translucent cover 110. The translucent cover 110 having a light diffusion function can be configured.

  In addition, the translucent cover 110 is fixed to the housing 120 so as to close the first opening 120 a in order to protect the LED module 140 and the circuit board 160 disposed inside the housing 120.

  The housing 120 is a flat plate-like cylindrical member that houses the LED module 140 and the circuit board 160. As shown in FIG. 2B, the housing 120 includes a first opening 120a formed on the light irradiation side, and a light And a second opening 120b formed on the side opposite to the irradiation side. A translucent cover 110 is attached to the first opening 120a.

  Moreover, the housing | casing 120 is fixed to the support stand 130 with three screws, for example. The housing 120 is made of an insulating resin material such as PBT (polybutylene terephthalate). The housing 120 may be made of metal instead of resin.

  The support stand 130 is a support member that supports the circuit board 160 and the housing 120. The support stand 130 also functions as a heat sink that dissipates heat generated by the LED module 140. Therefore, the support base 130 is preferably composed of a metal material such as aluminum or a resin material having high thermal conductivity. As illustrated in FIG. 2B, the support base 130 is disposed so as to close the second opening 120 b of the housing 120. In the following first embodiment, the support stand 130 will be described as a part of the housing 120.

  Moreover, the support stand 130 is connected to a lighting fixture via the heat conductive sheet 170. The support base 130 functions as a predetermined base connected to the lighting fixture together with the housing 120 and the connection pins 180. The LED unit 100 has a standardized base structure that fits into a socket of a lighting fixture. Examples of such a base structure include a GX53 base and a GH76p base as described above.

  The translucent cover 110, the casing 120, and the support stand 130 correspond to the main body. That is, the main body portion has a light emitting surface for extracting light from the light emitting portion 142 (a surface on the light irradiation side including the translucent cover 110), a side surface provided around the light emitting surface, and a side opposite to the light emitting surface. It has an installation surface (a surface on the side attached to the lighting fixture, including the support base 130), and stores a control unit and a light emitting unit 142, which will be described later.

  The LED module 140 is a light source in the LED unit 100 and emits light of a predetermined color (wavelength) such as white. The LED module 140 (substrate 141) is placed on the support base 130 and fixed to the support base 130. For example, the LED module 140 and the support base 130 can be fixed by applying an adhesive between the substrate 141 and the support base 130.

  The LED module 140 emits light by electric power supplied from the circuit board 160. The light emitted from the LED module 140 passes through the translucent cover 110 and is emitted outside the lamp.

  As illustrated in FIG. 2B, the LED module 140 can be configured by, for example, a substrate 141 and a light emitting unit 142.

  The LED module 140 has a so-called COB (Chip On Board) structure in which bare chips (LEDs, light emitting elements) are directly mounted on the substrate 141.

  The light emitting unit 142 includes a plurality of LEDs and a sealing member that seals the plurality of LEDs. The LED is an example of a light emitting element, and is a semiconductor light emitting element that emits light with a predetermined power. The LED in the first embodiment is a bare chip that emits monochromatic visible light. For example, a blue light emitting LED chip that emits blue light when energized can be used. For example, a plurality of LEDs are mounted in a plurality of rows or a matrix on the main surface of the substrate 141.

  The sealing member is made of, for example, resin and is formed so as to collectively seal a plurality of LEDs. In this case, the sealing member may be formed linearly so as to be collectively sealed for each LED element row, or the shape in plan view is circular so that all the LEDs on the substrate 141 are collectively sealed. You may form in a shape or a rectangular shape.

  The sealing member is mainly made of a translucent material, but when it is necessary to convert the wavelength of the LED light to a predetermined wavelength, a wavelength conversion material is mixed into the translucent material. The sealing member in Embodiment 1 is a wavelength conversion member that includes a phosphor as a wavelength conversion material and converts the wavelength (color) of light emitted from the LED. Such a sealing member can be constituted by, for example, an insulating resin material (phosphor-containing resin) containing phosphor particles as a phosphor. The phosphor particles are excited by light emitted from the LED and emit light of a desired color (wavelength).

  As a translucent resin material constituting the sealing member, for example, a silicone resin can be used. Further, as the phosphor particles to be included in the sealing member, for example, when the LED is a blue light emitting LED that emits blue light, for example, YAG-based yellow phosphor particles can be used to obtain white light. . Thereby, a part of blue light emitted from the LED is wavelength-converted into yellow light by the yellow phosphor particles contained in the sealing member. Then, the blue light that has not been absorbed by the yellow phosphor particles and the yellow light that has been wavelength-converted by the yellow phosphor particles are mixed and emitted from the sealing member as white light.

  As the substrate 141, a ceramic substrate, a resin substrate, or a metal base substrate can be used. As the shape of the substrate 141, a rectangular shape in plan view can be used, but a polygonal shape such as a hexagonal shape or an octagonal shape or a circular shape may also be used.

  A reflective plate 150 (reflecting mirror) is disposed between the translucent cover 110 and the LED module 140. The reflecting plate 150 is a reflecting member having a reflecting function, and includes an incident port that is an opening through which light from the LED module 140 is incident and an emitting port that is an opening through which light incident from the incident port is emitted from the reflecting plate 150. Have. Reflector 150 in Embodiment 1 has a truncated cone shape that is configured such that the inner diameter gradually increases from the entrance to the exit. Specifically, the reflecting plate 150 has a trumpet shape (funnel shape).

  The entrance is configured to surround the light emitting region (light emitting unit 142) of the LED module 140. Further, the opening area of the emission port is substantially the same as the area of the flat portion of the translucent cover 110.

  The inner surface of the reflecting plate 150 is a reflecting surface that reflects light from the LED module 140. The reflection surface is configured to reflect the light incident from the incident port and output the light from the output port. The light from the LED module 140 is guided to the translucent cover 110 by the reflector 150.

  The reflector 150 can be made of, for example, a hard white resin material having insulation properties. In order to improve the reflectance, the reflection surface may be configured by coating the inner surface of the resin-made reflection plate 150 with a metal vapor deposition film (metal reflection film) made of a metal material such as silver or aluminum. Absent. Moreover, you may shape | mold the reflecting plate 150 whole using metal materials, such as aluminum, without using a resin material.

  The circuit board 160 is a printed board on which metal wiring is patterned. As shown in FIG. 2B, the circuit board 160 in the first embodiment is an annular (doughnut-shaped) board in which a circular opening is formed. It is arranged outside. For example, the circuit board 160 is held by the casing 120 by screwing the circuit board 160 and the casing 120 together.

  A driving circuit (not shown) for causing the LED module 140 (light emitting unit 142) to emit light is provided on the main surface of the circuit board 160 on the light irradiation side. For example, the drive circuit converts AC power (for example, power from an AC 100 V commercial power source) supplied from the connection pin 180 into DC power, and supplies the DC power to the LED module 140. The power supplied to the drive circuit (circuit board 160) may be direct current power instead of alternating current power.

  Examples of circuit elements (not shown) constituting the drive circuit include capacitive elements such as electrolytic capacitors and ceramic capacitors, resistance elements, coil elements, choke coils (choke transformers), noise filters, diodes, and integrated circuit elements. A semiconductor element or the like. Many circuit elements are mounted on the main surface of the circuit board 160 on the light irradiation side.

  A first connection portion 190 is provided on the main surface of the circuit board 160 on the light irradiation side. The first connection unit 190 is a connector to which the function adding device 200 is detachably connected in order to receive a control signal from the function adding device 200. Here, “detachable” means that the function adding device 200 can be attached after the shipment of the LED unit 100 by the user.

  The first connection unit 190 is a USB (Universal Serial Bus) compliant connector, a HDMI (registered trademark) (High Definition Multimedia Interface) compliant connector, a S-ATA (Serial Advanced Technology standard connector, etc.) connector. There may be a dedicated connector. That is, the first connection unit 190 is detachably connected to the second connection unit 210 of the function adding device 200 and can be transmitted in any shape as long as the control signal can be transmitted from the function adding device 200 to the LED unit 100. There may be.

  The heat conductive sheet 170 is a sheet for releasing heat from the LED module 140 transmitted through the support base 130 to the lighting fixture side. Specifically, the heat conductive sheet 170 is a resin sheet having a high thermal conductivity, and for example, a silicon sheet or an acrylic sheet can be used.

  The connection pin 180 (third connection portion, cap pin) is a conductive pin and has a function of receiving power for causing the LED module 140 to emit light from the outside of the lamp. That is, the connection pin 180 is an electrical connection pin for supplying power.

  For example, the pair of connection pins 180 receives predetermined AC power from the lighting fixture. Each connection pin 180 and circuit board 160 are connected by a lead wire (not shown), and the AC voltage received by the pair of connection pins 180 is supplied to the circuit board 160 (drive circuit) via the lead wire. The The pair of connection pins 180 receive AC voltage, but may be configured to receive two different DC voltages.

  Moreover, the connection pin 180 functions also as an attachment part for attaching the LED unit 100 to a lighting fixture. Specifically, the LED unit 100 is held by the lighting fixture by connecting the connection pin 180 to the socket of the lighting fixture.

  The connection pin 180 is configured to protrude outward from the surface opposite to the light irradiation side surface of the housing 120. For example, the connection pin 180 is press-fitted and fixed in a through hole provided in the housing 120.

  Two connection pins 180 are provided for power supply, but in addition to connection pins for power supply, electrical connection pins for signals for receiving electrical signals such as dimming signals, or others A connection pin having the above functions may be provided.

  In addition, the function addition apparatus 200 is provided with the 2nd connection part 210, the resin-made housing | casing 220, the sensor part 250, and the cable 255 as FIG. 1B mentioned above shows. Details of the function adding device 200 will be described later with reference to FIG.

  Next, functional configurations and the like of the LED unit 100 and the function addition device 200 according to Embodiment 1 will be described with reference to FIGS. 3 and 4. FIG. 3 is a functional block diagram of the LED unit 100 and the function adding device 200 according to the first embodiment. FIG. 4 is a cross-sectional view of an illumination device including LED unit 100 according to Embodiment 1.

  First, the LED unit 100 will be described.

  As shown in FIG. 3, the LED unit 100 includes a light emitting unit 142, a power conversion unit 191, a first connection unit 190, and a control unit 192. The control unit 192 includes a power supply unit 193 and a power supply unit 194.

  The light emitting unit 142 is a light emitting unit that emits light using DC power supplied from the power supply unit 194 of the control unit 192.

  The power conversion unit 191 converts AC power supplied from the lighting fixture 300 into DC power and outputs the DC power to the control unit 192. Here, the LED unit 100 is attached to the lighting fixture 300 (the reflecting plate 310 and the socket 320) provided on the ceiling of the room as shown in FIG. The power conversion unit 191 receives power from the lighting fixture 300 through the connection pin 180 when the connection pin 180 is inserted into the connection hole 321 (fourth connection portion) of the lighting fixture 300.

  Specifically, the power conversion unit 191 is, for example, a bridge-type full-wave rectifier circuit including four diodes included in the above-described drive circuit, but in any form such as an AC-DC converter IC. There may be.

  The power supply unit 193 operates the control unit 192 using the DC power received from the power supply conversion unit 191. Specifically, the power supply unit 193 is, for example, a power supply circuit included in the above-described drive circuit, but may be in any form such as a DC-DC converter IC.

  The power supply unit 194 supplies power to the light emitting unit 142. The power supply unit 194 is, for example, an inverter circuit included in the drive circuit and a rectifier circuit connected to the inverter circuit. However, the power supply unit 194 may be in any form such as a chopper control circuit that changes the switching control state according to the control signal and adjusts the power to the light emitting unit 142, for example. The chopper control circuit is specifically a PWM (Pulse Width Modulation) circuit, a PFM (Pulse Frequency Modulation) circuit, or the like. In a case where the control unit 192 controls only lighting and extinguishing of the light emitting unit 142, a switch that switches whether power is supplied to the light emitting unit 142 according to a control signal may be used.

  The control unit 192 controls the light emission of the light emitting unit 142 according to the control signal received from the function addition device 200 connected to the first connection unit 190. For example, the control unit 192 controls turning on and off of the light emitting unit 142 in accordance with the control signal. Specifically, the control unit 192 is a circuit that operates according to a control signal included in the above-described drive circuit, but may be realized as a function of an integrated circuit such as a processor, and in any manner. There may be.

  In Embodiment 1, the power supply unit 194 of the control unit 192 controls the light emission of the light emitting unit 142 by controlling the amount of power supplied to the light emitting unit 142 according to the control signal. In the first embodiment, specifically, the power supply unit 194 of the control unit 192 controls lighting and extinguishing of the light emitting unit 142 based on the control signal.

  Note that, as indicated by a broken line in FIG. 3, not the power supply unit 194 but the power supply unit 193 controls the amount of power received from the power supply conversion unit 191 or the power supplied to the power supply unit 194 according to the control signal. By doing so, the light emission of the light emitting unit 142 may be controlled. Specifically, when the power supply unit 194 is an IC that varies the output to the light emitting unit 142 according to the reference voltage supplied by the power source unit 193, the light emitting unit is adjusted by adjusting the input / output of the power source unit 193. The light emission of 142 can be controlled. When the power supply unit 193 controls only lighting and extinguishing of the light emitting unit 142, the power supply unit 193 may be a switch that switches the presence / absence of power to be received according to a control signal.

  The first connection unit 190 is a connector to which the second connection unit 210 of the function addition device 200 is detachably connected in order to receive a control signal from the sensor unit 250 of the function addition device 200. That is, the first connection unit 190 has a terminal for receiving a control signal from the sensor unit 250 of the function addition device 200. Further, the first connection unit 190 has a first terminal for supplying the DC power output from the power conversion unit 191 to the function addition device 200. The function adding device 200 operates by the electric power supplied through the first terminal.

  Next, the function addition device 200 will be described.

  As illustrated in FIG. 3, the function addition device 200 includes a second connection unit 210 and a sensor unit 250.

  The second connection portion 210 is a connector having a shape corresponding to the shape of the first connection portion 190 and is connected to the first connection portion 190. The function addition device 200 (sensor unit 250) operates with electric power supplied via the first terminal included in the first connection unit 190. The function adding device 200 may be configured to operate without receiving power supply from the LED unit 100 by incorporating a battery.

  The sensor unit 250 is a so-called human sensor module that detects infrared rays. The sensor unit 250 is not limited to a configuration that detects infrared rays. For example, the sensor unit 250 may detect illuminance, sound, temperature, and the like around the sensor unit 250. In this case, an existing illuminance sensor, sound sensor, temperature sensor, or the like can be applied to the sensor unit 250. Further, vibration of the sensor unit 250, user motion (user gesture), and the like may be detected. For example, when the LED unit 100 is provided in a moving body (such as a car), the sensor unit 250 detects vibration of the sensor unit 250 due to movement of the moving body. That is, the function addition device 200 may be a sensor device that detects a detection target.

  The detection of motion can be realized by applying a reflection type sensor (motion sensor) to the sensor unit 250, for example. When the sensor unit 250 is a reflective sensor, the sensor unit 250 projects light to the user and measures the distance to the user using the reflected light. That is, the sensor unit 250 can detect whether the user is within a determined distance. If the user puts his / her hand within the determined distance (detection range), the sensor unit 250 can detect this as a motion.

  As shown in FIG. 4, the second connection part 210 and the sensor part 250 are electrically connected by a cable 255. That is, the function addition device 200 is connected to the first connection unit 190 via the cable 255.

  In the first embodiment, the sensor unit 250 outputs a control signal corresponding to the detection result of infrared rays to the LED unit 100. Thereby, after the sensor part 250 detects infrared rays, the LED unit 100 is turned on for a certain period and then turned off. That is, the LED unit 100 operates as an illumination light source with a so-called human sensor.

  As described above, in the LED unit 100, the second connection unit 210 of the function adding device 200 is connected to the first connection unit 190. The function adding device 200 adds an infrared detection function to the LED unit 100. Therefore, the user can selectively add a function to the lighting apparatus having the lighting fixture 300 that does not support the expansion of the function.

  The lighting fixture 300 is installed on the ceiling of a room or the like as shown in FIG. 4 and constitutes the lighting device 400 together with the LED unit 100. Therefore, conventionally, in the case where the lighting fixture 300 does not support the expansion of the function, in order to expand the function of the lighting device 400, it is necessary to perform a construction for exchanging the lighting fixture 300 with a contractor.

  However, according to the LED unit 100, the user simply attaches the LED unit 100 to the lighting fixture 300, selects the function adding device 200 having a function that the user wants to add, and connects the LED unit 100 to the lighting device 100. 400 functions can be expanded. That is, according to the LED unit 100, the lighting device 400 with a high degree of freedom of function addition is realized.

  In addition, since the function adding device 200 is externally attached to the LED unit 100, the drive circuit and the sensor unit 250 can be installed apart from the LED unit in which the sensor unit 250 (function adding unit) is built. it can. As a result, the function adding device 200 is not easily affected by heat and noise caused by the drive circuit, and thus the LED unit 100 can stably use the function added by the function adding device 200.

  In addition, as shown in FIG. 4, the LED unit 100 is normally attached to the lighting device so that the light emitting surface is on the lower side. Therefore, when the first connection unit 190 is provided on the light emitting surface of the main body unit, there is a risk that the function adding device 200 falls off due to the weight of the housing 220 and the sensor unit 250.

  However, since the first connection portion 190 is provided on the side surface of the main body as in the first embodiment, the connection direction of the second connection portion 210 intersects the vertical direction, and the second connection portion 210 The connection part 190 is caught. For this reason, it is possible to reduce the risk that the function adding device 200 drops due to the weight of the housing 220 and the sensor unit 250.

  In addition, as shown in FIG. 4, the side surface and the installation surface of the main body of the LED unit 100 are usually covered with the lighting fixture 300. Therefore, only the light emitting surface of the main body of the LED unit 100 is exposed to the outside, and only the light emitting surface of the main body of the LED unit 100 can be contacted from the outside.

  Therefore, when the first connection unit 190 is provided on the light emitting surface of the main body unit and the function addition device 200 is not connected, there is a risk that the user may accidentally touch the first connection unit 190 and get an electric shock. is there. In such a case, there is a risk that the first connecting portion 190 is clogged with foreign matter such as dust.

  However, when the function addition apparatus 200 is not connected by providing the first connection portion 190 on the side surface of the main body portion as in the first embodiment, the first connection portion 190 is covered with the lighting fixture 300. Therefore, there is a low risk that the user accidentally touches the first connection portion 190 and is electrocuted. In addition, there is a low risk that the first connecting portion 190 is clogged with foreign matter such as dust, and the lighting device 400 can be stably operated based on the function added by the function adding device 200.

  In addition, in FIG. 4, when the 2nd connection part 210 is connected to the 1st connection part 190, the 2nd connection part 210 protrudes from the side surface of a main-body part. In such a case, there is a possibility that the LED unit 100 to which the function adding device 200 is connected cannot be attached to the conventional lighting fixture. Therefore, a concave portion corresponding to the shape of the second connection portion 210 is provided on the side surface of the main body portion so that the second connection portion 210 is located inward of the main body portion with respect to the side surface of the main body portion, and the first connection is made in the concave portion. A portion 190 may be provided.

  In the above description, the function adding device 200 is connected to the first connection unit 190 via the cable 255, and thus the cable 255 may block light from the LED unit 100. Therefore, in order to prevent the light from the LED unit 100 from being blocked in this way, the LED unit 100 may further include a cable holding unit that holds the cable 255.

  FIG. 5 is a side view of the LED unit 100 including a cable holding unit.

  The LED unit 100 shown in FIG. 5 includes a cable holding portion 175 that holds the cable 255 at the peripheral portion of the light emitting surface of the main body portion. The cable holding portion 175 shown in FIG. 5 is a claw-like member that protrudes outward from the center of the light emitting surface, but the cable holding portion 175 may have any form as long as the cable 255 can be held. .

  As shown in FIG. 5, the cable holding unit 175 holds the cable 255, whereby the LED unit 100 can prevent the cable 255 from blocking light from the light emitting surface.

  The LED unit 100 may include a shutter unit that covers the first connection unit 190 and can be opened and closed.

  FIG. 6 is a perspective view of the LED unit 100 including a shutter unit.

  As shown in FIG. 6A, the first connecting portion 190 is covered with the shutter portion 135 in a state where the shutter portion 135 is closed. That is, FIG. 6A shows a state in which the function adding device 200 cannot be connected to the first connection unit 190.

  On the other hand, as shown in FIG. 6B, the first connecting portion 190 is exposed from the side surface of the LED unit 100 by opening the shutter portion 135. That is, FIG. 6B shows a state in which the function adding device 200 can be connected to the first connection unit 190.

  By providing the shutter part 135 as described above, the first connection part 190 can be easily covered when the first connection part 190 is not used. Therefore, it is possible to further reduce the risk that the user will accidentally touch the first connection portion 190 and get an electric shock, or the first connection portion 190 may be clogged with foreign matter such as dust.

  The shutter unit 135 shown in FIG. 6 is configured to be manually opened and closed by the user. However, when the function adding device 200 is not connected by using an elastic member or the like, the shutter unit 135 is automatically operated. It may be configured to be closed.

  In addition, the shutter unit 135 may include a switch that detects opening / closing of the shutter unit 135 and electrically connects the control unit 192 and the first connection unit 190 according to the detection result. In this case, the switch electrically connects the control unit 192 and the first connection unit 190 in a state where the shutter unit 135 is opened. The switch releases the electrical connection between the control unit 192 and the first connection unit 190 in a state where the shutter unit 135 is closed.

  With such a configuration, it is possible to further reduce a risk that the user may accidentally touch the first connection unit 190 and receive an electric shock.

  Further, in the control unit 192, when the element that operates only when the function addition device 200 is connected is the first element, the switch detects the opening / closing of the shutter unit 135, and the first element according to the detection result The power supply to may be stopped.

  In this case, the switch supplies power from the power conversion unit 191 (power supply unit 193) to the first element in a state where the shutter unit 135 is opened. The switch stops power supply from the power conversion unit 191 (power supply unit 193) to the first element in a state where the shutter unit 135 is closed.

  Thereby, when the function addition apparatus 200 is not connected, the power consumption of the LED unit 100 can be reduced by stopping the power supply to the first element not involved in the operation of the LED unit 100.

  The switch may detect the connection / disconnection of the function adding device to the first connection unit 190 instead of opening / closing the shutter unit 135.

  In the first embodiment, the sensor unit 250 (function adding unit) of the function adding device 200 has been described as an infrared sensor, but is not limited to such a configuration. For example, as described above, the sensor unit 250 may be an illuminance sensor, a sound sensor, a vibration sensor, a motion sensor, a temperature sensor, or the like.

  The sensor unit 250 may be a light receiving unit of a remote controller. In this case, the user can perform remote control operation of the lighting device 400 by the LED unit 100 and the function adding device 200.

  The function adding device 200 may include a timer unit as a function adding unit. In this case, the timer unit transmits a control signal according to the time (time) set by the user. In other words, the timer unit detects time.

  The function addition device 200 may include a wireless module as a function addition unit. In this case, the LED unit 100 and the function addition device 200 allow the user to control the lighting device 400 wirelessly.

  The function addition device 200 may include a plurality of function addition units among the sensor unit, the timer unit, the wireless module, and the like. The function addition device 200 may include a second function addition unit that is an auxiliary function addition unit in addition to the function addition unit as described above. For example, the function addition device 200 may include an aroma spraying unit (for example, a spray-type aroma spraying unit) that sprays a volatile substance as the second function addition unit.

  In this case, for example, after the detection by the infrared sensor, the control unit 192 can turn on the light emitting unit 142 for a predetermined time, further turn off the light emitting unit 142, and perform a scent spraying for a predetermined time.

  In the first embodiment, the control unit 192 controls lighting and extinguishing of the light emitting unit 142 (flashing of the light emitting unit 142). However, the control content of the control unit 192 is not limited to lighting and extinguishing of the light emitting unit 142. . For example, the control unit 192 may control dimming of the light emitting unit 142.

  The control unit 192 can control dimming of the light emitting unit 142 by controlling the number of LEDs emitted from the light emitting unit 142 in accordance with the control signal. If the power supply unit 194 of the control unit 192 is a PWM circuit, the power supply unit 194 of the control unit 192 performs pulse width modulation of the voltage supplied to the light emitting unit 142 in accordance with the control signal, and the light emitting unit 142. Dimming can be controlled.

  Further, the control unit 192 may control the toning of the light emitting unit 142. For example, if the light emitting unit 142 is configured to include a nematic liquid crystal having a toned dichroic dye provided so as to cover the LEDs included in the light emitting unit 142, the control unit 192 may change the control signal according to the control signal. The light transmittance of the nematic liquid crystal may be controlled by applying a voltage. Accordingly, the control unit 192 can control the color adjustment of the light emitting unit 142. In addition, the light emitting unit 142 has a plurality of LEDs having different color temperatures, and the control unit 192 controls the color combination of the light emitting unit 142 by controlling the combination of LEDs to be lit and the number of LEDs to be lit. Also good.

  Further, the control unit 192 may control the light distribution of the light emitting unit 142. For example, a driving mechanism (driving unit) for changing the light distribution angle of the plurality of LEDs included in the light emitting unit 142 is provided, and the control unit 192 controls the driving unit according to the control signal, thereby The light distribution may be controlled.

  Further, an optical member for changing the light distribution angle of the LED included in the light emitting unit 142 and a drive mechanism (drive unit) for changing the position or angle thereof are provided, and the control unit 192 responds to the control signal with the optical member. The light distribution of the light emitting unit 142 may be controlled by controlling the driving unit. The light emitting unit 142 includes a plurality of LEDs having different mounting angles (light emitting surface angles), and the control unit 192 controls the combination of LEDs to be lit and the number of LEDs to be lit according to the control signal. Thus, the light distribution of the light emitting unit 142 may be controlled.

(Embodiment 2)
In Embodiment 1, the 1st connection part 190 was provided in the side surface of the main-body part of the LED unit 100, However, The position in which the 1st connection part 190 is provided is not limited to such a position. The first connection part 190 may be provided on the installation surface of the main body part of the LED unit 100.

  FIG. 7 is a perspective view of the LED unit in which the first connection portion 190 is provided on the installation surface of the main body portion. FIG. 8 is a cross-sectional view of an illuminating device including an LED unit in which the first connection portion 190 is provided on the installation surface of the main body portion. FIG. 7 is a diagram when the LED unit is viewed from the installation surface side.

  As shown in FIG. 7, in the LED unit 100 a, the first connection portion 190 is provided on the installation surface of the housing 120. Accordingly, the user cannot connect the function adding device 200 to the first connection unit 190 unless the LED unit 100a is removed from the lighting fixture 300. That is, the user can attach and detach the function adding device 200 only when the LED unit 100a is not supplied with power from the lighting fixture 300. Therefore, with such a configuration, it is possible to extremely reduce the risk that the user will be erroneously electrocuted.

  In addition, like the lighting device 400 a shown in FIG. 8, the side surface and the installation surface of the main body of the LED unit 100 are usually covered with the lighting fixture 300. Therefore, by providing the first connection portion 190 on the installation surface, it is possible to reduce a risk that the first connection portion 190 is clogged with foreign matters such as dust.

  Further, similarly to the case where the first connection unit 190 is provided on the side surface, it is possible to reduce the risk that the function adding device 200 drops off due to the weight of the housing 220 and the sensor unit 250.

  In addition, in order for the LED unit 100 according to Embodiment 1 to be attached to a conventional lighting fixture, the second connection portion 210 connected to the first connection portion 190 is positioned inward of the main body portion rather than the side surface of the main body portion. Thus, a configuration such as providing a recess may be required. On the other hand, in the LED unit 100a, since the 1st connection part 190 is provided in the installation surface instead of the side surface of a main-body part, the adaptability to the conventional lighting fixture is high.

  Further, in order to further improve the adaptability to the conventional lighting fixture, a groove 145 extending in a direction parallel to the lamp axis J is provided on the side surface of the main body portion of the LED unit 100a. The groove 145 is a groove through which the cable 255 of the function adding device 200 is passed, and the width of the groove is preferably larger than the diameter of the cable 255.

  As shown in FIG. 8, by passing the cable 255 of the function adding device 200 through the groove 145, the LED unit 100 a can be attached to the lighting apparatus 300 without the cable 255 being in the way. That is, the adaptability of the LED unit 100a to a lighting fixture can be enhanced.

  The groove 145 may be provided so as to extend in the circumferential direction. For example, by providing the groove 145 so as to make one turn along the side surface of the main body portion, the groove 145 can have the same function as the cable holding portion 175 described in the first embodiment.

(Embodiment 3)
In the first and second embodiments, the function adding device 200 includes the cable 255. However, the function adding device 200 may not include the cable 255.

  FIG. 9 is a perspective view showing an LED unit to which a function adding device without a cable is connected.

  As shown in FIG. 9A, in the function addition device 200a, the second connection portion 210 is provided in the casing 220a, and the function addition device 200a does not include the cable 255.

  On the side surface of the main body portion of the LED unit 100b, a concave portion that is recessed toward the inside of the main body portion is provided. The first connection portion 190 is provided on a surface 185b that forms a recess in the side surface of the main body portion.

  The concave portion has a shape corresponding to the outer shape of the housing of the function adding device 200. In other words, the concave portion has a shape along the outer shape of the housing of the function addition device 200.

  As shown in FIG. 9B, when the function adding device 200b is attached to the LED unit 100b, the function adding device 200b does not protrude from the side surface of the LED unit 100b. Thereby, since the function addition apparatus 200b does not get in the way, the LED unit 100b can be attached to a conventional lighting apparatus without any problem.

  In addition, the function addition apparatus 200b provided with the cable 255 as described in the first and second embodiments may be attached to the LED unit 100b. Also in this case, since the second connecting portion 210 does not protrude from the side surface of the LED unit 100b due to the concave portion provided on the side surface of the LED unit 100b, the LED unit 100b can be attached to the conventional lighting apparatus without any problem.

  In addition, the 1st connection part 190 may be provided in the surface 185a and the surface 185c. That is, the surface 185a and the surface 185c are included in the surface that forms the recess among the side surfaces of the main body.

  Moreover, the structure which can change the direction of the surface in which the 1st connection part 190 is provided may be sufficient.

  FIG. 10 is a perspective view of the LED unit capable of changing the orientation of the surface on which the first connection portion 190 is provided.

  The LED unit 100c shown in FIG. 10 includes a movable portion 165. The movable portion 165 includes a surface 185d (first surface) on which the first connection portion 190 is provided, which is a part of the side surface of the main body portion, and has a structure that can be rotated manually in the direction of the arrow in FIG. is there. That is, the user can change the orientation of the surface 185d (side surface of the main body portion) on which the first connection portion 190 is provided.

  Specifically, as shown in FIG. 10 (a), the direction of the surface 185d is normally the same as the side surface of the main body, but is movable as shown in FIG. 10 (b). By moving the part, the direction of the surface 185d can be changed to the same direction as the light emitting surface of the main body part. Further, the orientation of the surface 185d can be changed to the inside orientation of the main body as shown in FIG. That is, in the LED unit 100c, the surface 185d and the first connection portion 190 can be stored in the main body portion. In addition, the structure which can change the direction of the surface 185d to the same direction as the installation surface of a main-body part may be sufficient.

  As described above, in the LED unit 100c, when the function adding device 200 is not connected, the first connection portion 190 is housed in the main body portion, and foreign matter such as dust can be prevented from entering the first connection portion 190. . Such a configuration is also effective in preventing electric shock to the user.

  Further, in the LED unit 100c, the direction of the surface 185d can be changed according to the shape or the like of the function addition device 200 connected to the first connection unit 190. For this reason, the LED unit 100c is highly compatible with the function adding device 200 and the lighting fixture 300.

(Other)
As described above, the LED unit and the function adding device according to the present embodiment have been described based on the embodiments, but the present invention is not limited to these embodiments.

  For example, in the above embodiment, the LED is exemplified as the light emitting element, but other solid light emitting elements such as a semiconductor light emitting element such as a semiconductor laser or an EL element such as an organic EL (Electro Luminescence) or an inorganic EL are used. Also good.

  For example, as a light emitting part, a package type comprising a resin container having a recess (cavity), an LED chip mounted in the recess, and a sealing member (phosphor-containing resin) sealed in the recess. An LED element (SMD type LED element) may be used. That is, the LED module may be an SMD type LED module configured by mounting a plurality of such LED elements on a substrate on which metal wiring is formed.

  In the above embodiment, the present invention is realized as an LED unit and an illumination device including the LED unit. However, the present invention can also be realized as another illumination light source or illumination device. For example, in the above-described embodiment, an example in which the present invention is applied to an LED unit having a flat thin structure has been described. However, the present invention is a light bulb-type LED lamp or a straight tube-type LED lamp that is a light source for illumination. Alternatively, it can be realized as an annular LED lamp.

  As mentioned above, although the LED unit which concerns on one or several aspects was demonstrated based on embodiment, this invention is not limited to this embodiment. Unless it deviates from the gist of the present invention, various modifications conceived by those skilled in the art have been made in this embodiment, and forms constructed by combining components in different embodiments are also within the scope of one or more aspects. May be included.

100, 100a, 100b, 100c LED unit (light source for illumination)
110 Translucent cover (cover)
120, 220, 220a Housing 120a First opening 120b Second opening 130 Support base 135 Shutter 140 LED module 141 Substrate 142 Light emitting part (light emitting element)
145 Groove 150, 310 Reflector 160 Circuit board 165 Movable part 170 Thermal conduction sheet 175 Cable holding part 180 Connection pin (third connection part)
185a, 185b, 185c, 185d surface 190 first connection unit 191 power supply conversion unit 192 control unit 193 power supply unit 194 power supply unit 200, 200a, 200b function addition device (external device)
210 Second connection part 250 Sensor part (function addition part)
255 Cable 300 Lighting fixture 320 Socket 321 Connection hole (fourth connection part)
400, 400a Lighting device

Claims (9)

A light emitting unit;
A first connection unit to which the external device is connected to receive a control signal used to control light emission of the light emitting unit from an external device;
A light-emitting surface for extracting light from the light-emitting unit, a side surface provided around the light-emitting surface, and an installation surface which is a surface opposite to the light-emitting surface; With
The first connection portion is an illumination light source provided on the side surface of the main body portion or the installation surface of the main body portion. In addition, it has a shutter part that can be opened and closed,
When the shutter portion is closed, the first connection portion is covered with the shutter portion, and when the shutter portion is opened, the first connection portion is in a state in which the external device can be connected. The illumination light source according to claim 1. The illumination light source further includes a control unit that controls light emission of the light emitting unit according to the control signal received from the external device connected to the first connection unit,
The shutter unit further electrically connects the control unit and the first connection unit in a state where the shutter unit is opened, and the control unit and the first unit in a state where the shutter unit is closed. The illumination light source according to claim 2, further comprising a switch that releases electrical connection with the connection unit. The first connection portion is provided on a first surface which is a part of the side surface of the main body portion,
The illumination light source according to claim 1, wherein the illumination light source further includes a movable portion that includes the first surface and changes the orientation of the first surface. The side surface of the main body is provided with a recess that is recessed toward the inside of the main body,
The illumination light source according to claim 1, wherein the first connection portion is provided on a surface of the main body portion on which the concave portion is formed. The illumination light source according to claim 5, wherein a shape of the recess is a shape corresponding to an outer shape of the external device. The external device is connected to the first connection portion via a cable,
The illumination light source according to any one of claims 1 to 6, wherein the illumination light source further includes a groove for passing the cable through the side surface of the main body. The external device is connected to the first connection portion via a cable,
The illumination light source according to claim 1, wherein the illumination light source further includes a cable holding portion that holds the cable at a peripheral portion of the light emitting surface of the main body portion. An illumination device comprising the illumination light source according to claim 1.

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