JP5172626B2 - lighting equipment - Google Patents

Description

  The present invention relates to a luminaire having a flat spiral fluorescent lamp.

2. Description of the Related Art Conventionally, there has been known a luminaire using a flat spiral fluorescent lamp that is swirled in a substantially flat plane around a central portion of a tube (see, for example, Patent Document 1).
As shown in FIG. 5, the lighting fixture 100 described in Patent Document 1 includes a flat spiral mounted on a fixture main body 101 formed in a circular box shape and a flat reflecting surface 102 formed on the outer surface of the fixture main body 1. The fluorescent lamp 103 has a shape, and the fluorescent lamp 103 and the instrument main body 101 are covered with a light-transmitting cover 104.

The instrument main body 101 is attached to a mounting portion such as a ceiling, and the opening portion of the main body case 105 opened on one side is covered with a flat base plate 106, and the outer surface of the bottom wall of the main body case 105 is reflected. Surface 102 is formed. A rectangular parallelepiped inverter (not shown) is attached to the base plate 106 as a lighting device, and is accommodated in the main body case 106. A pair of lamp sockets 107 are attached to the outer surface of the bottom wall (reflection surface 102) of the main body case 105 to supply power by attaching a flat spiral fluorescent lamp 103, and are connected to an inverter inside the main body case 105. Yes.
Japanese Patent Laid-Open No. 2008-204736 (FIG. 1)

  However, in the luminaire described in Patent Document 1 as described above, further miniaturization is desired since miniaturization when a flat spiral fluorescent lamp is used is not considered much.

  The present invention has been made to solve the conventional problems, and it is an object of the present invention to provide a lighting apparatus using a flat spiral fluorescent lamp, which can be further reduced in size. .

The luminaire of the present invention includes an arc tube that spirally swivels in a substantially flat plane around the central portion of the tube, a pair of caps provided at both ends of the arc tube, and parallel to the arc tube from the cap. A fluorescent lamp having a pair of lamp pins, a pair of lamp sockets that are electrically connected to the lamp pins to supply electric power, an approximately rectangular parallelepiped inverter that supplies electric power to the lamp socket, and the inverter An inverter case covering the inverter case, and the pair of lamp sockets are arranged at the corners of the inverter case at the end portions in the longitudinal direction of the inverter case .

With this configuration, by using a flat spiral fluorescent lamp having a base at both ends, the fluorescent lamp can be reduced in size as compared with an annular fluorescent lamp having an arc tube of the same length, and the lamp socket is formed in a substantially rectangular parallelepiped. Since the inverter case is reduced in size by being arranged at the longitudinal end of the inverter case that covers the inverter, the lighting fixture can be reduced in size.
Further, with this configuration, since the lamp socket is disposed at the corner portion at the end portion in the longitudinal direction of the inverter case, the inverter case can be further reduced in size, and the lighting fixture can be further reduced in size.

  The present invention uses a flat spiral fluorescent lamp having caps at both ends, thereby reducing the size of the fluorescent lamp as compared to an annular fluorescent lamp having an arc tube of the same length, and a lamp socket having a substantially rectangular parallelepiped shape. By disposing the inverter case at the corner of the inverter case that covers the inverter, it is possible to reduce the size of the inverter case. Therefore, it is possible to provide a lighting device that has the effect of reducing the size of the lighting device. It is.

Hereinafter, the lighting fixture of embodiment of this invention is demonstrated using drawing.
1 is a perspective view of a lighting apparatus according to a first embodiment of the present invention, FIG. 2A is a plan view of a fluorescent lamp, FIG. 2B is a side view of the fluorescent lamp, and FIG. 3 is a perspective view of a lamp socket. FIG. 4 is a perspective view of the inverter.

  As shown in FIG. 1, a lighting fixture 10 according to the present invention includes a disc-shaped base plate 12 attached to, for example, a ceiling 11 as an attached portion, and an inverter case 13 attached to a lower surface 121 of the base plate 12. The main body 14 is configured, and a flat spiral fluorescent lamp (hereinafter referred to as “fluorescent lamp”) 20 is mounted on the instrument main body 14. An inverter 16 is attached to the lower surface 121 of the base plate 12, and the inverter 16 is covered with an inverter case 13. A transparent or translucent resinous transparent cover 15 including the inverter case 12 and the flat spiral fluorescent lamp 20 is detachably attached to the base plate 12.

  As shown in FIG. 1, the inverter case 13 covering the inverter 16 is formed in an overall U shape from a bottom plate 131 and a pair of side plates 132 by, for example, sheet metal processing, and the lower surface of the bottom plate 131 is painted white, for example. It also serves as a reflector that reflects the light of the fluorescent lamp 20 forward (in the illumination direction).

  A pair of lamp sockets 17, 17 are provided on the lower surface of the bottom plate 131, and are connected to power supply terminals 163, 163 to be described later of the inverter 16, respectively. In the vicinity of the lamp socket 17 on the lower surface of the bottom plate 131, a pair of lamp holding springs 18 and 18 are provided for holding the base 22 and temporarily fixing the fluorescent lamp 20.

  As shown in FIG. 4, the inverter 16 has an overall rectangular parallelepiped shape by combining, for example, a U-shaped bottom plate 161 attached to the lower surface 121 of the base plate 12 and a U-shaped upper plate 162. A pair of power supply terminals 163 that are connected to the lamp socket 17 and supply power to the fluorescent lamp 20 are provided at both ends in the longitudinal direction on the upper surface of the bottom plate 161.

  Therefore, the inverter case 13 has a length that is at least longer than the length in the longitudinal direction of the inverter 16 in order to contain the inverter 16. Although the width direction dimension of the inverter case 13 can be made narrow according to the inverter 16, the width | variety which can fulfill | perform the function as a reflecting plate of the lower surface 131 of the inverter case 13 is ensured.

  On the lower surface 131 of the inverter case 13, a pair of lamp sockets 17, 17 are provided at positions facing the end surfaces of both caps 22, 22 of the fluorescent lamp 20, and the lamp sockets 17, 17 are end portions in the longitudinal direction of the lower surface 131. To be located. At this time, it is more desirable to arrange the lamp sockets 17, 17 at the corners of the lower surface 131.

  As shown in FIG. 2, the fluorescent lamp 20 has a double spiral shape in which an arc tube 21 made of a series of bent glass tubes is swirled in a spiral shape on a substantially single plane around a tube center portion 211. . A base 22 is provided at both ends of the arc tube 21, and a pair of upper and lower lamp pins 23, 23 are provided protruding from the base 22. By attaching the lamp pin 23 to the lamp socket 17, driving power can be obtained.

  A bridge 24 that holds the arc tube 21 is provided between the caps 22 and 22. The bridge 24 includes an annular grip portion 241 that grips the vicinity of the base 22 and a bridge body 242 that connects the grip portions 241.

  Since such a planar spiral fluorescent lamp 20 emits light in a planar shape, uniform light can be obtained up to the center as compared with a single or double annular fluorescent lamp. Further, the size can be reduced as compared with an annular fluorescent lamp having an arc tube of the same length.

  As shown in FIG. 3, the lamp socket 17 that holds the lamp pin 23 of the fluorescent lamp 20 has an overall disk shape, and the circular side surface 171 faces the front end surface of the base 22 of the fluorescent lamp 20. The lamp socket 17 is attached to the lower surface 131 of the inverter case 13. On the side surface 171 side of the lamp socket 17, a lamp pin insertion groove 172 is recessed from the lower end portion of the outer peripheral surface beyond the center portion, and a conductive plate 173 is provided inside the lamp pin insertion groove 172. The width of the lamp pin insertion groove 172 is larger than the outer diameter of the lamp pin 23 so that the lamp pin 23 can be inserted therein.

  Accordingly, by inserting the pair of lamp pins 23 of the fluorescent lamp 20 into the lamp pin insertion groove 172 in the vertical direction and operating the operation portion 174, the lamp pins 23 are electrically connected to the conductive plate 173, and the lid is closed to drop off the lamp pins 23. To prevent.

  As described above, according to the lighting apparatus 10 according to the embodiment of the present invention, by using the flat spiral fluorescent lamp 20 having the caps 22 at both ends, the annular fluorescent lamp having the same length of the arc tube. The fluorescent lamp can be downsized as compared with the above. Further, by arranging the lamp socket 17 at the longitudinal end of the inverter case 13 that covers the substantially rectangular parallelepiped inverter 16, the inverter case 13 can be reduced in size, and the luminaire 10 can be reduced in size. .

  Further, by disposing the lamp socket 17 at the corner portion at the end portion in the longitudinal direction of the inverter case 13, the inverter case 13 can be further downsized, and the lighting fixture 10 can be further downsized.

  In addition, the lighting fixture of this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

The perspective view of the lighting fixture concerning 1st Embodiment of this invention. (A) is a plan view of a fluorescent lamp, (b) is a side view of the fluorescent lamp Perspective view of lamp socket Inverter perspective view Exploded perspective view showing a lighting fixture using a conventional flat spiral fluorescent lamp

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lighting fixture 13 Inverter case 16 Inverter 17 Lamp socket 20 Fluorescent lamp 21 Luminescent tube 211 Central part of tube 22 Base 23 Lamp pin

Claims (1)

An arc tube that swirls in a substantially flat plane around the center of the tube, a pair of caps provided at both ends of the arc tube, and a pair of lamps provided in parallel to the arc tube from the cap A fluorescent lamp having a pin;
A pair of lamp sockets electrically connected to the lamp pins to supply power;
An approximately rectangular parallelepiped inverter for supplying power to the lamp socket;
An inverter case covering the inverter,
The lighting fixture, wherein the pair of lamp sockets is arranged at a corner portion of the inverter case at a longitudinal end of the inverter case .

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