JP2013008576A - Adapter for lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adapter that can supply light even though a power source of an electric bulb for illumination installed on the adapter 20 is lost.SOLUTION: When light is irradiated from an LED arranged by coming in contact with an end of a light guide part to the light guide part 26, the light is diffused with diffusion dots arranged on the light guide part 26. Then, the light diffused at a back side is reflected with the light guide part 26 since a reflection plate is arranged at the back side of the light guide part 26, and the diffused light added together with the light diffused at a front side with the light guide part 26 can brightly lighten the vicinity of the adapter 20.

Description

  The present invention relates to an adapter for a lighting device.

  2. Description of the Related Art Conventionally, a light source device has been known that can irradiate light to the base side in the same manner as a general lighting bulb. For example, Patent Document 1 discloses a light source that can irradiate light not only near the center of a lamp but also near a base by reflecting a part of light emitted from a plurality of light emitting diodes at a reflecting portion. An apparatus is described.

JP 2009-289697 A

  By the way, the general lighting bulb generally has a short life compared with the lighting bulb using the light emitting diode, and when the filament breaks, it cannot be used at that time. Further, the general lighting bulb is often used in a place where the influence is large when the general lighting bulb cannot be used such as in a dark place or at night.

  For example, when the light source device described in Patent Document 1 is used, it is possible to irradiate the vicinity of the base, but it is not assumed that the general lighting bulb cannot be used. When the lamp becomes unusable, there is a problem that all light is lost near the center of the lamp and near the base.

  The present invention has been made in view of such problems, and can be mounted with various light bulbs for general illumination, and can provide light even when a light source such as a light bulb for general illumination is lost. The main purpose is to provide adapters.

  The present invention adopts the following means in order to achieve at least one of the above objects.

The adapter for lighting device of the present invention is
A lighting device adapter that is mounted between a lighting device and a mounting port to which the lighting device is mounted,
A light source that emits light;
A receiving part to which the lighting device is attached;
A base part attached to the mounting opening;
A light guide unit for diffusing light emitted from the light source to the surroundings;
It is equipped with.

  Since this illumination device adapter can diffuse the light emitted from the light source to the surroundings by the light guide unit, the illumination device attached to the receiving part cannot irradiate the light for some reason. Can also irradiate the surroundings with light. Further, by attaching the lighting device adapter between the mounting port and the lighting device, an interval is created between the mounting port and the lighting device by the length of the lighting device adapter. For this reason, for example, even if the illumination device is large and the space near the attachment port is narrow, it is not possible to attach the illumination device at the attachment port, by attaching an illumination device adapter between the attachment port and the illumination device. The lighting device can be attached, and the lighting device can be attached to an attachment port that could not be attached without using the adapter for the lighting device. In other words, it is possible to increase choices of usable lighting devices.

  The illuminating device adapter of the present invention may include a heat radiating portion that is in contact with the light source and at least a part of which is exposed to the outside. By so doing, heat generated by the light source can be released to the outside through the heat radiating portion, so that the influence of heat can be reduced even when a light source that is easily affected by heat is used. In other words, the possibility that the light source is defective due to heat can be reduced in advance, so that the surroundings can be stably irradiated with light.

  In the adapter for lighting device of the present invention, the light source may be an LED light source. Since LED light sources generally have a longer life compared to general lighting device bulbs, even if the lighting device does not emit light for some reason, it is highly possible that the LED light source can be used, so it is stable for a long time. Therefore, the surroundings can be irradiated with light. In this case, since the LED light source is easily affected by heat, the effect of providing the heat radiating portion is great. In other words, when the LED light source is used, the LED light source can be used for a long period of time by providing the heat dissipation part. In addition, LED means Light Emitting Diode.

  In the illumination device adapter according to the aspect of the invention, the light guide is a cylindrical member that covers at least the entire side surface of the receiving portion, and the light source has a height of the light guide from one end of the light guide. Light may be irradiated in the direction. In this way, since the light irradiated to the light guide from one end side of the cylindrical light guide is diffused by the cylindrical light guide covering the entire side of the receiver, the entire side of the receiver Can be irradiated with light. In other words, the entire periphery of the illumination device adapter can be irradiated with light. Moreover, since the light guide part is located on the side surface of the receiving part, the overall size can be further reduced. Here, the side surface of the receiving portion means a surface that contacts the inner curved surface of the cylindrical light guide portion among the surfaces of the receiving portion.

  The adapter for illuminating device of this invention may be provided with the reflection part which reflects the light irradiated from the said light source to an outer side direction. The light emitted from the light source to the light guide unit is diffused by the light guide unit in the direction of the receiving port and in the outer direction of the adapter for the lighting device, but between the light guide unit and the receiving port. Since the reflection part is provided, the light diffused in the direction of the receiving part is reflected by the reflection part and guided to the outside direction of the adapter for lighting device. For this reason, compared with the case where it does not have a reflection part, the light quantity of the light irradiated to the outer side direction of the adapter for illuminating devices can be increased.

  In the adapter for lighting device of the present invention, the receiving part and the base part may be different in shape or size. In this way, even if the shape or size of the base of the lighting device is different from the shape or size of the mounting port, the lighting device is mounted by mounting the lighting device adapter between the mounting port and the lighting device. be able to. In other words, it is possible to increase the choices of usable illumination devices while irradiating light around the illumination device adapter.

  In the illumination device adapter of the present invention, the light guide section may include a plurality of diffusion dots inside. By so doing, light can be diffused more than in the case where the light guide section does not have diffusion dots.

FIG. 1 is a perspective view showing an outline of the configuration of the adapter 20. FIG. 2 is a cross-sectional view of the adapter 20 cut at the center. FIG. 3 is a side view showing an example of a state in which the incandescent lamp 100 is attached to the adapter 20 and used. FIG. 4 is a side view showing an example of a state where the LED bulb 110 is attached to the adapter 20 and used.

  Here, based on the above-described drawings, the correspondence between the constituent elements of the present embodiment and the constituent elements of the present invention will be clarified in describing the embodiment for carrying out the present invention. The adapter 20 of the present embodiment corresponds to an adapter for a lighting device of the present invention, the incandescent bulb 100 and the LED bulb 110 correspond to a lighting device, the mounting port 12 corresponds to a mounting port, the LED 34 corresponds to a light source, The receiving portion 24 corresponds to the receiving portion, the base 22 corresponds to the base portion, the light guide portion 26 corresponds to the light guide portion, the heat radiating portion 32 corresponds to the heat radiating portion, and the reflecting plate 30 serves as the reflecting member. The diffusion dot 28 corresponds to the diffusion dot. In addition, by clarifying an example of how to use the adapter 20, an example of how to use the adapter for lighting device of the present invention is also clarified.

  Next, the configuration of the adapter 20 as an example of the embodiment of the present invention will be described in detail with reference to FIG. The adapter 20 has a receiving part 24 to which the incandescent bulb 100 can be attached on one end side, a base 22 that can be attached to the mounting opening 12 on the other end side, and a heat radiating part between the receiving part 24 and the base 22. 32 are provided (see FIG. 3). The adapter 20 and the incandescent light bulb 100 can be attached in a state where electricity can be applied by screwing the base 22 into the attachment port 12 and screwing the incandescent light bulb 100 into the receiving port 24. By carrying out like this, it can be used similarly to the case where a general illuminating device is used.

  The base 22 is a metallic member having a spiral groove on the surface side, and can be screwed into the mounting port 12 (for example, a mounting port to which an E26 port defined by JIS standards can be mounted). When the base 22 is screwed into the mounting opening 12, the adapter 20 is energized, and power is supplied to the adapter 20. At the same time, power can be supplied to the incandescent bulb 100.

  The receiving portion 24 is a metal member having a spiral groove in the inner direction. As shown in FIG. 2, a light guide portion 26 is provided around the reflector plate 30. The receiving portion 24 can be screwed into, for example, an E26 mouthpiece defined by JIS standards. When the cap of the incandescent bulb 100 is screwed into the receiving portion 24, the adapter 20 connects the incandescent bulb 100 to the incandescent bulb 100. Power is supplied.

  As shown in FIG. 1, the light guide part 26 is a resin member that covers the periphery of the receiving part 24 in a cylindrical shape, and a plurality of diffusion dots 28 are provided on the back side (see FIG. 2). . As shown in FIG. 2, a plurality of LEDs 34 are arranged on the end face side of the light guide unit 26, and light is irradiated from the LEDs 34 to the light guide unit 26. At this time, a part of the light incident from the one end face side of the light guide part 26 goes straight as it is and is irradiated from the other end face side of the light guide part 26, and part of the light is diffused by the diffusion dots 28 to be diffused. Light is guided to the front side and the back side. In this way, even when the LED 34 having a narrow irradiation range is used as a light source, the light can be diffused and irradiated in the surface side direction of the adapter 20. In other words, the side surface direction can be brightened with a smaller number of LEDs 34 than in the case where the light guide portion 26 is not provided. Here, the direction exposed to the outside of the light guide unit 26 is referred to as a front side, and the side opposite to the front side is referred to as a back side.

  As shown in FIG. 2, the diffusing dots 28 are concave portions that are recessed in a substantially quadrangular pyramid shape from the inside direction, and are provided so that a position corresponding to the bottom surface of the quadrangular pyramid is located inside the light guide portion 26. Since the diffusion dots 28 are regularly provided in a lattice shape, the possibility of giving a messy aesthetic appearance can be reduced compared to the case where the diffusion dots 28 are provided irregularly. In other words, an excellent aesthetic appearance can be produced as compared with the case where the diffusion dots 28 are irregularly provided. Note that the diffusing dots 28 in the drawing are drawn larger than actual for the sake of explanation.

  The reflection plate 30 is provided on the back side of the light guide unit 26 and between the receiving unit 24 and the light guide unit 26. A part of the light emitted from the LED 34 to the light guide unit 26 is diffused to the back side and the front side by the diffusing dots 28, but the reflecting plate 30 is provided with the reflecting surface facing the front side. Therefore, the light diffused to the back side is reflected by the reflecting plate 30 and guided to the front side. For this reason, compared with the case where it does not have the reflecting plate 30, the surface side can be made brighter.

  As shown in FIG. 1, the heat dissipating part 32 is a metal member provided at a position between the light guide part 26 and the base 22, and the LED 34 and the LED 34 are disposed between the light guide part 26 and the heat dissipating part 32. A substrate 36 is provided. As shown in FIG. 2, since the heat radiating portion 32 is in contact with the LED substrate 36, when the LED substrate 36 generates heat due to use, heat is conducted from the LED substrate 36 to the heat radiating portion 32, and the LED substrate 36. The heat generated in step 1 can be released to the heat radiating section 32. At this time, since the heat radiation part 32 is exposed to the outside, the heat conducted from the LED substrate 36 can be released to the outside air. By so doing, more heat can be released to the outside of the adapter 20 compared to the case where the heat radiating portion 32 is not provided. In other words, it is possible to reduce the possibility that the LED substrate 36 is defective due to heat.

  The LED 34 is a light emitting diode that emits white light, and is electrically connected to the base 22 via the LED substrate 36 and a lead wire, an electronic circuit, or the like (not shown). For this reason, when the base 22 is screwed into the mounting opening 12, power is supplied to the LED 34 and the LED 34 emits light. A plurality of the LED substrates 36 are arranged on the same circumference, and this position is also a position facing the end surface of the light guide part 26 that covers the periphery of the receiving part 24 in a cylindrical shape. For this reason, when the LED 34 attached to the light guide part 26 side of the LED substrate 36 emits light, light enters the light guide part 26 from one end face side of the light guide part 26, and a part of the light advances straight as it is. Irradiated from the other end surface side of the portion 26, a part is diffused by the diffusion dots 28, and light is guided to the front surface side and the back surface side of the light guide portion 26. In addition, since the LED 34 is attached to the light guide unit 26 side of the LED substrate 36, when the LED 34 generates heat by use, heat is conducted from the LED 34 to the heat radiating unit 32 through the LED substrate 36, and the LED 34 The generated heat can be released to the heat radiating section 32. By doing so, the possibility that the LED 34 is defective due to heat is reduced in advance, and the LED 34 can be used for a long time. In addition, since the LED 34 can be used for a longer period of time than a general lighting device (for example, an incandescent bulb), even if the incandescent bulb 100 attached to the adapter 20 does not light for some reason, The surroundings can be brightened.

  Next, an example of a usage method when the incandescent lamp 100 is attached to the ceiling using the adapter 20 of the present embodiment configured as described above will be described with reference to FIG. Here, FIG. 3 is a side view showing an example of a state in which the incandescent bulb 100 is attached to the adapter 20 and used, and shows a state in which the incandescent bulb 100 and the adapter 20 are attached to the attachment port 12 provided on the ceiling. . When the base 22 is screwed into the mounting opening 12, power is supplied to the adapter 20 from a power source (not shown), and power is supplied to the LED 34 and the incandescent lamp 100. At this time, when the light emitted from the LED 34 enters the light guide 26 from the one end face side of the light guide section 26, a part of the light advances straight as it is and is irradiated indoors from the other end face side of the light guide section 26. The light is emitted from the incandescent lamp 100 after being diffused in the side surface direction of the light guide part 26 by the diffusion dots 28, and is reflected by the reflecting surface 14 that covers the upper side of the adapter 20 in a hemispherical shape, and light is irradiated into the room. The

  However, when the incandescent light bulb 100 is attached to the adapter 20, there may be a case where the incandescent light bulb 100 does not light up, for example, when the filament breaks due to a lifetime or the like. Even in such a case, since the LED light source generally has a longer life than the incandescent bulb, the LED 34 is lit. At this time, when the light emitted from the LED 34 enters the light guide 26 from the one end face side of the light guide section 26, a part of the light advances straight as it is and is irradiated indoors from the other end face side of the light guide section 26. After the portion is diffused in the direction of the side surface of the light guide portion 26 by the diffusion dots 28, it is reflected by the reflecting surface 14 that covers the upper side of the adapter 20 in a hemispherical shape, and light is irradiated into the room. For this reason, a light source can be secured even in an unexpected situation such as when the incandescent bulb 100 is broken.

  Next, an example of a usage method in the case where the adapter 20 of the present embodiment configured as described above is attached to the ceiling using the LED bulb 110 will be described with reference to FIG. Here, FIG. 4 is a side view showing an example of a state where the LED bulb 110 is attached to the adapter 20 and used. When the LED bulb 110 is used, the LED bulb 110 has a longer life compared with the case where the incandescent bulb 100 is used. Therefore, the risk that the LED bulb 110 is broken and the light source is lost can be reduced. However, in order to use the LED bulb 110 for a long period of time, a heat radiating portion that releases heat generated by the LED is required. Therefore, a heat radiating portion exposed to the outside is required at the base of the LED bulb 110. In addition, since the light irradiated by the LED has high straightness, the direction in which the LED bulb 110 irradiates becomes bright, and the surrounding area becomes relatively dark. For this reason, light is hardly irradiated especially in the vicinity of the heat radiating portion, which may give a dark impression as a whole.

  However, when a known LED bulb 110 is screwed into the adapter 20, a part of the light emitted from the LED 34 is diffused in the direction of the side surface of the light guide 26 by the diffusion dots 28, and only the LED bulb 110 is used. Can also supply light to the vicinity of the base of the LED bulb 110 that becomes relatively dark. By doing so, since the light irradiated in the side surface direction of the adapter 20 is reflected by the reflecting surface 14 that covers the upper side of the adapter 20 in a hemispherical shape, the light from the ceiling to the room is the same as when the incandescent bulb 100 is used. Can be irradiated. Further, even when the LED bulb 110 is not lit for some reason, a light source can be secured as in the case where the incandescent bulb 100 is not lit for some reason.

  According to the adapter 20 of the present embodiment described in detail above, light is emitted from the LED 34 provided in contact with the end face of the light guide 26 to the light guide 26 and diffused around by the diffusion dots 28. By doing so, the amount of light can be secured even when the LED bulb 110 attached to the receiving port 24 does not light for some reason. Further, when the adapter 20 is attached between the attachment port 12 and the LED bulb 110, an interval corresponding to the length of the adapter 20 is created between the attachment port 12 and the base portion of the LED bulb 100. By doing so, the distance between the upper surface of the LED bulb 110 and the reflecting surface 14 covering the upper side of the adapter 20 in a hemispherical shape can be increased, so that the upper portion of the LED bulb 110 becomes a reflecting surface covering the upper side of the adapter 20. Even a size that does not fit can be used. In other words, it is possible to increase the choices of lighting devices that can be used.

  In addition, since the LED 34 is in contact with the metal heat radiating portion 32 that is partially exposed to the outside, the heat generated when the LED 34 is used is conducted to the heat radiating portion 32, and the LED 34 may be heated to a high temperature. It can be reduced in advance. In other words, since the possibility that the LED 34 may malfunction due to the generated heat can be reduced, the LED 34 can be used for a long time.

  Furthermore, since the LED 34 is used as the light source, it is possible to irradiate light for a longer period of time compared to, for example, the use of an incandescent bulb.

  Furthermore, since the LED 34 irradiates light in the height direction of the light guide part 26 from the end part side on the base 22 side with respect to the light guide part 26 that covers the periphery of the receiving part 24 in a cylindrical shape, The distance traveled through the light guide portion 26 becomes longer and passes through many diffusion dots 28. At this time, since the light is diffused by the respective diffusion dots 28, light can be irradiated over a wide range even when the LED 34 is used as the light source. Moreover, since the light guide part 26 is located in the position which covers the circumference | surroundings of the receiving part 24, the whole magnitude | size can be made smaller.

  And since the reflecting plate 30 is provided between the receiving part 24 and the light guide part 26, the light diffused in the back surface direction by the light guide part 26 can be reflected in the surface direction. Therefore, it can be brighter than the case where the reflecting plate 30 is not provided.

  Furthermore, since a plurality of diffusion dots 28 are provided on the back surface side of the light guide unit 26, more light is irradiated to the light guide unit 26 than when the diffusion dots 28 are not provided. be able to. Further, since the diffusion dots 28 are provided on the back surface side, there are no surface irregularities that occur when the diffusion dots 28 are provided on the front surface side. For this reason, compared with the case where the spreading | diffusion dot 28 is provided in the surface side, it is more excellent in aesthetics.

  It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that the present invention can be implemented in various modes as long as it belongs to the technical scope of the present invention.

  For example, although the reflective plate 30 is provided in the above-described embodiment, the reflective plate 30 may not be provided. Also in this case, the surroundings can be brightened.

  In the embodiment described above, the base 22 can be attached to the mounting opening 12 to which the E26 port defined by the JIS standard can be mounted, and the receiving part 24 can be screwed to the E26 base defined by the JIS standard. However, the shapes of the base 22 and the receiving portion 24 are not limited to this, and those having different shapes or sizes, for example, the shape or size of the mounting opening 12 and the shape of the receiving portion 24. Alternatively, the sizes may be different. In this way, the adapter 20 serves as a conversion connector, and the incandescent bulb 100 or the LED bulb 110 can be attached to the attachment port 12 that cannot be attached without the adapter 20.

  In the above-described embodiment, the diffusing dots 28 are provided on the back surface side, but may be provided on the front surface side, and may be provided on both the back surface side and the front surface side. In either case, the surroundings can be brightened.

  In the embodiment described above, the heat radiating portion 32 is provided at a position between the light guide portion 26 and the base 22. However, the heat radiating portion 32 and the base 22, and the heat radiating portion 32 and the receiving portion 24 are connected to each other. May be. By doing so, the heat conducted from the LED 34 to the heat radiating part 32 is further conducted to at least one of the base 22 and the receiving part 24, so that the cooling effect on the LED 34 is increased, and the LED 34 may cause malfunction due to heat. It can be further reduced.

  In the embodiment described above, the LED 34 is in contact with the light guide portion 26 from the direction of the base 22, but the base 22 and the LED 34 are not in contact, and there is a space between the base 22 and the LED 34. good. Also in this case, the same effect as the above-described embodiment can be obtained.

  In the embodiment described above, the LED 34 is attached to the light guide part 26 side of the LED substrate 36, but at least one surface of the LED 34 may be in contact with the heat radiating part 32. In this way, since the heat generated in the LED 34 is directly transmitted to the heat radiating portion 32, the cooling efficiency of the LED 34 can be further increased as compared with the case where the LED 34 and the heat radiating portion 32 are not in contact with each other. Further, the position of the LED 34 may be on the receiving portion 24 side of the light guide portion 26, may be on the back side of the light guide portion 26, or may be in contact with the light guide portion 26. In either case, the same effect as the above-described embodiment can be obtained.

  In the embodiment described above, the outer surface of the heat radiating portion 32 is a flat surface, but the surface area of the outer surface may be increased by providing irregularities on the outer surface. By doing so, the area where the outer surface of the heat radiating portion 32 is in contact with the outside air is increased, so that the heat radiating effect by the heat radiating portion 32 can be further improved as compared with a flat outer surface.

  As shown in the embodiment described above, it can be used as an illumination field adapter, particularly as an adapter for a lighting device.

  DESCRIPTION OF SYMBOLS 12 ... Mounting port, 14 ... Reflecting surface, 20 ... Adapter, 22 ... Base, 24 ... Receiving part, 26 ... Light guide part, 28 ... Diffusing dot, 30 ... Reflecting plate, 32 ... Radiating part, 34 ... LED, 36 ... LED substrate, 100 ... incandescent bulb, 110 ... LED bulb.

Claims (7)

A lighting device adapter that is mounted between a lighting device and a mounting port to which the lighting device is mounted,
A light source that emits light;
A spiral receiving port to which the lighting device is attached;
A base part attached to the mounting opening;
A light guide unit for diffusing light emitted from the light source to the surroundings;
With
Adapter for lighting equipment. The illumination device adapter according to claim 1,
A heat dissipating part in contact with the light source, at least a part of which is exposed to the outside
With
Adapter for lighting equipment. The light source is an LED light source,
The adapter for lighting devices according to claim 1 or 2. The light guide part is a cylindrical member that covers at least the entire side surface of the receiving part,
The light source irradiates light in the height direction of the light guide from one end side of the light guide.
The adapter for illuminating devices of any one of Claims 1-3. It is an adapter for illuminating devices of any one of Claims 1-4, Comprising:
A reflection part that is provided between the light guide part and the receiving part and reflects light emitted from the light source in an outward direction;
With
Adapter for lighting equipment. The receiving part and the base part are different in shape or size,
The illuminating device adapter of any one of Claims 1-5. The light guide unit includes a plurality of diffusion dots on the inside,
The illuminating device adapter according to any one of claims 1 to 6.

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