JP2010267479A - Lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting device of thin design having GX53 type base or the like, wherein the lighting device can adjust irradiation position of spot light for illumination without moving the installation place of the lighting device body. <P>SOLUTION: A fluorescent lamp 30 having light distribution characteristics like a surface light source and a lighting circuit 20 of the fluorescent lamp 30 are housed in a base body 10. Meanwhile, a projection part 42 of a translucent outer shell case 40 which is constructed to be slidable to the base body 10 is formed in convex lens shape, and light emitted from the fluorescent lamp 30 is condensed by this convex lens and irradiated outside as a spot light. By sliding the outer shell case 40 and adjusting the distance between the fluorescent lamp 30 and the convex lens, the irradiation position of the spot light for illumination can be adjusted. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a thin lighting device in which a light source such as a fluorescent lamp or an LED (light emitting diode) and a lighting circuit thereof are integrated and can be directly attached to a socket provided on a ceiling or the like.

  The GX53 type base standardized by the IEC (International Electrotechnical Commission) enables a thin design of the lighting device by housing a lighting circuit (inverter, etc.) such as a fluorescent lamp as a light source in a housing. It is. The GX53 type base is standardized as JIS C 7709 in JIS (Japanese Industrial Standard).

  Many lighting devices having a GX53 type base are characterized by a thin design due to the structure of the base. The lighting device with a thin design has a light distribution characteristic like a surface light source by arranging the light source in the surface direction due to its structure, so that a wide range directly below can be relatively compared without impairing the landscape harmony of the usage environment. It is characterized by being able to illuminate uniformly.

  The following Patent Documents 1 and 2 describe a lighting fixture having a GX53 type base. In order to suppress an excessive increase in mercury vapor pressure in a fluorescent lamp, which is a light source, and to improve luminous efficiency, the luminaire of Patent Document 1 extends an amalgam-specific thin tube from the fluorescent tube of the fluorescent lamp, and extends the extension. The temperature is lowered by approaching the peripheral part of the glove of the lighting fixture. On the other hand, the luminaire of Patent Document 2 uses a partition plate that blocks the heat of the fluorescent lamp and the heat of the fluorescent lamp in order to prevent the temperature of the lighting circuit and the base from rising abnormally due to the heat generated from the fluorescent lamp. An aluminum holder that discharges to the outer periphery is provided.

  Patent Document 3 describes a lighting fixture that irradiates a floor surface from the bottom of a wall surface. This luminaire is provided with a holder that is slidable in a direction substantially parallel to the irradiation surface of the light source, and the light distribution is adjusted by making the distance between the translucent member and the light source variable by the holder.

JP 2007-157367 A JP 2007-180011 A JP 2008-293910 A

  However, for example, the lighting fixtures of Patent Documents 1 and 2 are devised for light emission efficiency and temperature rise prevention, but the light source itself is a normal surface light source. For this reason, it is suitable for uniformly illuminating a relatively wide range, but is not suitable for spot-like light irradiation. Therefore, there is a problem that it is not suitable for an environment that requires spot-like light irradiation, such as product light-up.

  Moreover, the lighting fixture of patent document 3 uses point light sources, such as an incandescent lamp, as a light source, and has a structure unsuitable for the thin design directly attached to sockets, such as a ceiling.

  The present invention has been made in view of the above-described problems. For example, in a thin design illumination device having a GX53-type base or the like, the irradiation position of the spot light can be adjusted without moving the installation location of the illumination device body. The purpose is to do.

  In order to achieve the above object, the present invention includes a light source having a light distribution characteristic like a surface light source, a lighting circuit for lighting the light source, the light source and the lighting circuit, and being inserted into a socket for power consumption. In a lighting device comprising: a main body having a base portion to be supplied; and a translucent outer shell case that covers a light emitting surface of the light source housed in the main body, the outer shell case radiates from the light source. A light projecting unit that collects the emitted light and irradiates the light to the outside, and a slide unit that slidably engages with the main body to adjust the distance between the light projecting unit and the light source. Features.

  The illumination device of the present invention includes a light projecting unit that collects light emitted from a light source accommodated in the main body and irradiates the light to the outside, and a slide unit for adjusting the distance between the light projecting unit and the light source. An outer shell case is provided, and is configured to be slidably engaged with the main body by the slide portion. Therefore, by sliding the outer shell case with respect to the main body, the irradiation position of the spot light can be adjusted without moving the installation location of the lighting device main body.

It is a block diagram of the illuminating device which shows embodiment of this invention. It is explanatory drawing which shows the usage example of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1A is a side view in which a part of an illumination device showing an embodiment of the present invention is cut out, and FIG. 1B shows the illumination device viewed from the lower side (light irradiation surface side). FIG.

  As shown in FIG. 1A and FIG. 1B, the illumination device according to the embodiment of the present invention is roughly divided into a base body 10, a lighting circuit 20, a fluorescent lamp 30, and an outer case 40. It consists of In the following description, positional relationships such as up and down are shown based on the directions shown in the figure.

  The base body 10 is fitted and fixed to a GX53 type socket (not shown) disposed on the ceiling or the like of the room, and is electrically connected to receive power supply. Further, the base body 10 serves as a container for housing the lighting circuit 20 and the fluorescent lamp 30.

  The base body 10 includes a base plate portion 11 having an annular plate shape, a cylindrical portion 12 projecting upward from the inner edge of the base plate portion 11, and an upper end portion of the cylindrical portion 12. The ceiling 13 to be closed is integrally formed in a substantially disc shape with an insulating resin. A space region surrounded by the cylindrical portion 12 and the ceiling portion 13 is a housing portion for the lighting circuit 20. In addition, an engagement holding receiving portion 12a that is detachably engaged with and held by an engagement holding portion of a socket (not shown) is formed on the outer peripheral surface of the cylindrical portion 12 so as to be recessed in an L shape. Yes.

  Further, in the vicinity of the outer peripheral portion of the substrate portion 11, two through holes that vertically penetrate the substrate portion 11 are provided at positions that are point-symmetric with respect to the center of the substrate portion 11. A pin 14 is inserted. The cap pin 14 has a cylindrical shaft portion 14a, a connection portion 14b projecting downward from the lower end portion of the shaft portion 14a, and an outer peripheral portion of the shaft portion 14a located above the connection portion 14b. The protruding flange portion 14c and the plug portion 14d protruding so as to have a T-shaped cross section from the upper end portion of the shaft portion 14a are integrally formed of a conductive metal.

  The shaft portion 14 a of the cap pin 14 is press-fitted into the through hole of the substrate portion 11 from below, and the flange portion 14 c is in close contact with the lower surface of the substrate portion 11. Further, the plug portion 14 d of the base pin 14 protrudes above the substrate portion 11. Then, at the time of mounting on the ceiling or the like, the plug portion 14d is inserted into the power supply hole of the socket to receive power supply, and is mechanically held by the socket in cooperation with the engagement holding receiving portion 12a. It has become.

  Further, a cylindrical slide portion 15 for holding the outer shell case 40 slidably is fixed to the outer peripheral portion of the substrate portion 11. A projection 15a for preventing the outer shell case 40 from dropping off is formed on the tip of the slide portion 15 so as to face outward. The slide portion 15 may be fixed to the outer peripheral portion of the substrate portion 11 with an adhesive or the like, or may be integrally formed with an insulating resin together with the substrate portion 11, the cylinder portion 12, and the ceiling portion 13.

  The lighting circuit 20 converts commercial power supplied from the socket via the cap pin 14 into high-frequency power suitable for lighting the fluorescent lamp 30, and is mounted on the circuit board 21 and the circuit board 21. It is comprised with electrical components 22, such as a transistor, a capacitor, an inductor, and a transformer. The electrical component 22 mounted on the circuit board 21 is disposed so as to be accommodated in a space region surrounded by the cylinder portion 12 and the ceiling portion 13 of the base body 10, and the peripheral portion of the circuit board 21 is a board of the base body 10. It is fixed to the part 11 with screws or the like.

  The fluorescent lamp 30 is formed, for example, by connecting three bulbs 31, 32, 33 bent in a U-shape sequentially in a planar shape using a communication tube 34 to form one continuous discharge path. is there. The inner surfaces of the bulbs 31 to 33 are coated with, for example, a three-wavelength phosphor, and the inside contains a rare gas such as argon (Ar), neon (He), krypton (Kr), mercury (Hg), or the like. Filled gas is sealed. A filament coil as an electrode is provided at both ends of one discharge path formed by the bulbs 31 to 33, and a lead wire 35 is drawn from the filament coil to the outside of the bulb and connected to the lighting circuit 20. . The fluorescent lamp 30 is fixed to the back surface of the circuit board 21 of the lighting circuit 20 with an adhesive, for example.

  The outer shell case 40 covers and protects the lighting circuit 20 and the fluorescent lamp 30 housed inside the base body 10 and has a function of collecting and irradiating light emitted from the fluorescent lamp 30. Yes. The outer shell case 40 is integrally formed of a light-transmitting synthetic resin or the like, and is configured to be slid over the slide portion 15 of the base body 10 and the lower end portion of the cylindrical portion 41 is closed. And a light projecting unit 42. The light projecting portion 42 is formed so that the central portion is thick and the peripheral portion is thin so as to form a convex lens.

  A protrusion 41 a is formed on the inner side of the distal end portion of the cylindrical portion 41 to prevent the slide portion 15 from falling off. When the outer shell case 40 is slid and pulled out from the base body 10 to the maximum extent, the protrusion 41a of the cylindrical portion 41 and the protrusion 15a of the slide portion 15 are caught and the outer shell case 40 does not fall off. . Further, the outer shell case 40 is prevented from sliding on the contact surfaces of the cylindrical portion 41 of the outer shell case 40 and the slide portion 15 of the base body 10 by frictional force. It has fine irregularities to hold it.

  The lighting device is held in a state where the base body 10 is pushed deeply into the outer shell case 40 as shown in FIG. Thereby, thickness becomes thin and the space required for preservation | save etc. can be suppressed to the minimum.

  When this lighting device is attached to a GX53 type socket disposed on the ceiling or the like, the engagement holding receiving portion 12a formed on the outer peripheral surface of the cylindrical portion 12 of the base body 10 is inserted in accordance with the engagement holding portion of the socket. To do. Thereby, the cylindrical portion 12 of the base body 10 is inserted into the socket, and the plug portion 14d of the base pin 14 is correctly inserted into the power supply hole of the socket. In this state, when the base body 10 is rotated clockwise, the engagement / holding receiving portion 12a is locked to the engagement / holding portion of the socket, and the plug portion 14d is correctly brought into contact with the electrode on the socket side. Receiving is possible.

  The electric power supplied from the socket side is given to the lighting circuit 20 through the cap pin 14 and converted into electric power suitable for lighting the fluorescent lamp 30 to light the fluorescent lamp 30. The fluorescent lamp 30 is configured to be a surface light source, and emits uniform light over a relatively wide range. The light emitted from the fluorescent lamp 30 is irradiated to the outside through the light projecting portion 42 of the outer shell case 40. Since the light projecting unit 42 constitutes a convex lens, the light emitted from the fluorescent lamp 30 is collected by the light projecting unit 42 and irradiated to the outside.

  Since the outer shell case 40 is configured to be slidable with respect to the base body 10, as shown in FIG. 2, by sliding the outer shell case 40, a fluorescent lamp 30 and a light projecting unit that is a convex lens The distance to 42 can be changed. And the irradiation position of a spot light changes according to the distance of the fluorescent lamp 30 and the light projection part 42. FIG. Therefore, with the base body 10 attached to the socket and lit, the outer shell case 40 can be pulled out to adjust the spot light irradiation position.

  As described above in detail, the illumination device of the present embodiment collects the fluorescent lamp 30 that is fixed to the base body 10 and has a light distribution characteristic like a surface light source, and the light emitted from the fluorescent lamp 30. The outer shell case 40 having a light projecting portion 42 for irradiating the outside is provided, and the outer shell case 40 is configured to be slidable with respect to the base body 10. Therefore, there is an advantage that the irradiation position of the spot light can be adjusted without moving the installation location of the illuminating device main body only by adjusting the amount of the outer shell case 40 to be drawn.

In addition, this invention is not limited to the said embodiment, The following various deformation | transformation are possible.
(A) The structure of the base body 10 is not limited to that illustrated. That is, the base constituted by the base body 10 is not limited to the GX53 type. For example, a hook-type rosette that is also used for incandescent lamps or the like may be used. In that case, it is necessary to change the cap pins 14 and the like to match the type of the cap.
(B) Although the fluorescent lamp 30 is fixed to the back surface of the circuit board 21 of the lighting circuit 20 with an adhesive, the fixing method of the fluorescent lamp 30 is not limited to the exemplified method. That is, the fluorescent lamp 30 may be fixed not to the outer shell case 40 but to the base body 10 side.
(C) The fluorescent lamp 30 as the light source is not limited to one in which three U-shaped bulbs 31 to 33 are connected. For example, a spiral valve may be used. Furthermore, the light source is not limited to a fluorescent lamp, and an LED or EL (electroluminescence) can be used. In this case, the lighting circuit 20 needs to be a circuit that matches the light source.
(D) The cylindrical portion 41 of the outer shell case 40 does not need to be cylindrical, and can be formed in an arbitrary shape such as a square, hexagon, octagon, or ellipse. In that case, the shape of the slide portion 15 of the base body 10 also needs to match the shape of the outer shell case 40.
(E) Instead of the convex lens of the light projecting unit 42, a Fresnel lens can be used. By using the Fresnel lens, an increase in thickness and weight of the lighting device itself can be suppressed.
(F) The lighting device can be attached not only to the ceiling of the room but also to the wall surface. Furthermore, taking advantage of the small and thin features, it can be used as a light source in a cupboard or furniture, or as spotlight on a vanity or washstand.

DESCRIPTION OF SYMBOLS 10 Base body 11 Board part 12 Tube part 12a Engagement holding receiving part 13 Ceiling part 14 Base pin 14a Shaft part 14b Connection part 14c Flange part 14d Plug part 15 Slide part 15a, 41a Protrusion 20 Lighting circuit 21 Circuit board 22 Electrical component 30 Fluorescent lamps 31 to 33 Valve 34 Communication pipe 35 Lead wire 40 Outer shell case 41 Cylindrical part 42 Projecting part

Claims (5)

A light source having a light distribution characteristic like a surface light source, a lighting circuit for lighting the light source, a main body having a base portion that receives the light source and the lighting circuit and is inserted into a socket and receives power supply; In an illuminating device comprising: a translucent outer shell case that covers a light emission surface of the light source housed in the light source;
The outer shell case is
A light projecting unit that collects light emitted from the light source and irradiates the light outside
A slide part for slidably engaging with the main body and adjusting a distance between the light projecting part and the light source;
A lighting device comprising:   The lighting device according to claim 1, wherein the light projecting unit is a convex lens or a Fresnel lens.   The lighting device according to claim 1, wherein the light source is a fluorescent lamp in which a plurality of U-shaped bulbs are continuously connected in a planar shape.   The illumination device according to claim 1, wherein the light source is a light emitting diode in which a plurality of light emitting diodes are arranged on a plane, or electroluminescence.   The lighting device according to claim 1, wherein the base portion is a GX53 type base.

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