JP5078088B2 - Lamp socket and lighting apparatus using the lamp socket - Google Patents

Description

  The present invention relates to a lamp socket for holding a lamp pin of a flat spiral fluorescent lamp and supplying electric power, and a lighting fixture using the lamp socket.

Conventionally, a lamp socket has been used to hold a lamp pin of a lamp and supply electric power (see, for example, Patent Document 1).
As shown in FIG. 4, a lamp socket 100 described in Patent Document 1 is configured to hold a lamp 101 and supply electric power, and has a metal receiving surface 103 that abuts a lamp base 102 and one end on an outer peripheral surface 104. A lamp pin insertion groove 106 that is open and into which the lamp pin 105 can be inserted is provided. Inside the lamp pin insertion groove 106, conductive terminals 107 and 108 having different polarities are provided on the opening side and the opposite opening side.

Therefore, the lamp pin 105 of the lamp 101 is inserted along the lamp pin insertion groove 106 of the lamp socket 100, and the pair of lamp pins 105 is pushed into the conductive terminals 107 and 108 inside the lamp pin insertion groove 106, so that the lamp 101 can be easily attached to the lamp socket 100. Can be attached to.
Japanese Patent Laid-Open No. 10-144432 (FIG. 1)

  When the lamp 101 is supported in a state where the lamp pin 105 is horizontal by the lamp socket 100 described in Patent Document 1 described above, there is a risk that the lamp 101 may fall off, and a locking claw (not shown) is provided. Although provided, it was insufficient to prevent the lamp 101 from falling off.

For this reason, when the flat spiral fluorescent lamp is held horizontally, an open / close lid 112 that closes the entrance of the lamp pin insertion groove 111 is provided to prevent the lamp pin 105 from falling off, for example, as in the lamp socket 110 shown in FIG. What is provided is used. However, such a lamp socket 110 has a problem that it is troublesome because an operation of closing the open / close lid 112 is required after the lamp pin 105 is inserted.

  The present invention has been made to solve the conventional problems, and it is an object of the present invention to provide a lamp socket that can reliably hold a lamp only by inserting a lamp pin.

The lamp socket of the present invention is a flat spiral fluorescent lamp having an arc tube swirled in a double spiral along the same plane starting from the longitudinal center of the tubular discharge path at both ends of the arc tube. A lamp socket for supplying electric power by holding a pair of lamp pins protruding in the axial direction of the discharge tube and arranged in a direction orthogonal to the plane from a pair of provided caps, the pair of lamp pins A lamp pin insertion groove that is open in a direction perpendicular to the plane and that is open in a direction perpendicular to the plane, and a pair of conductive members that are provided inside the lamp pin insertion groove and hold the pair of lamp pins, respectively. possess a plate, a, of the pair of lamp pins, the lamp pins closer to the opening to that portion when held to the lamp socket and the front side lamp pins, When the lamp pin far from the open portion is used as the rear lamp pin in the insertion direction, the pair of conductive plates are arranged so that the outer peripheral curved surface of the front lamp pin extends from the wall surface in the lamp pin insertion groove to the lamp pin insertion groove. A near-side conductive plate having a three-dimensional holding structure provided on a wall surface in the lamp pin insertion groove, having a shape portion that is held in contact with and held by the outer peripheral curved surface while being urged by a pressing force directed inward. And a shape portion that holds and holds the outer peripheral curved surface of the lamp pin in the insertion direction on the outer peripheral curved surface while urging the outer peripheral curved surface of the lamp pin with a pressing force directed from the wall surface in the lamp pin insertion groove toward the inner direction of the lamp pin insertion groove. An insertion direction back side conductive plate having a three-dimensional holding structure provided on a wall surface in the lamp pin insertion groove, and pressing the front side conductive plate Is set to have a strength capable of holding the weight of the flat spiral fluorescent lamp and to be larger than the pressing force of the back conductive plate in the insertion direction. the pressing force of the plate, the insertion direction rear side and reliably as conduction can be taken lamp pins, and it is configured to be smaller than the pressing force of the front side conductive plate.

  In the lamp socket of the present invention, the back conductive plate in the insertion direction is provided with a portion having a shape that serves as a stopper for stopping the insertion of the lamp pin.

  Further, the lighting fixture of the present invention is provided with an arc tube in which a tubular discharge path is swirled in a double spiral shape along substantially the same plane with the central portion in the longitudinal direction as the center, and both ends of the arc tube. A fluorescent lamp comprising a pair of bases, a lamp pin provided on the base and extending along the axial direction of the arc tube, and a bridge for connecting and supporting the pair of bases, and electrically connected to the lamp pin A lamp socket for supplying power to the fluorescent lamp, and a fixture main body for holding the fluorescent lamp via the lamp socket, wherein the lamp socket is the lamp socket described above.

  The present invention provides a lamp pin insertion groove of a lamp socket with a pair of lamp pins protruding from a pair of caps provided at both ends of the arc tube of the flat spiral fluorescent lamp when the flat spiral fluorescent lamp is attached to the lamp socket. Can be held by simply pushing a pair of lamp pins into a pair of conductive plates provided inside the lamp pin insertion groove, so that a flat spiral fluorescent lamp can be easily mounted on the lamp socket. A lamp socket can be provided.

Hereinafter, a lamp socket according to an embodiment of the present invention will be described with reference to the drawings.
1A is a front view of a lamp socket according to an embodiment of the present invention, FIG. 1B is a side view, FIG. 1C is a bottom view, and FIG. 2A is a flat spiral fluorescent lamp. 2B is a front view seen from the direction B in FIG. 2A, and FIG. 3 is a perspective view of the lighting apparatus according to the embodiment of the present invention.

  As shown in FIG. 1, a lamp socket 10 according to the present invention holds a lamp pin 21 of a flat spiral fluorescent lamp 20 and supplies electric power.

  As shown in FIG. 2, the flat spiral fluorescent lamp 20 has an arc tube 22 in which a tubular discharge path is swirled in a double spiral shape along the same plane starting from the longitudinal center portion 22a. The central portion 22a of the arc tube 22 has a larger diameter than the other portions and is the coldest point. Bases 23 and 23 are respectively attached to both ends of the arc tube 22, and both the caps 23 and 23 are provided at point-symmetrical positions with respect to the central portion 22 a of the arc tube 22. Both caps 23 and 23 are connected by a bridge 24. Further, in each of the caps 23, 23, as a pair of lamp pins 21 in a direction orthogonal to the plane of the flat spiral fluorescent lamp 20, a rear lamp pin 21 a and a front lamp pin 21 b in the insertion direction extend along the axial direction of the arc tube 22. Projecting.

  As shown in FIG. 1, a lamp socket 10 has a cover 12 attached to an opening on the front surface (right side in FIG. 1B) of a main body 11 having a bottomed cylindrical shape, for example, and a lamp pin 21 passes through the cover 12. A possible lamp pin insertion groove 13 is cut open at the bottom. In the internal space of the main body 11, a pair of conductive plates 14 that respectively hold the pair of lamp pins 21 a and 21 b are provided along the lamp pin insertion grooves 13 provided in the cover 12. The pair of conductive plates 14 includes an insertion direction back side conductive plate 14a that holds the insertion direction back side lamp pin 21a and a front side conductive plate 14b that holds the front side lamp pin 21b.

  It is desirable that the pressing force applied to the front lamp pin 21b by the front conductive plate 14b is set larger than the pressing force applied to the rear lamp pin 21a in the insertion direction by the insertion conductive back side conductive plate 14a. For example, the pressing force of the front conductive plate 14b is strong enough to hold the weight of the flat spiral fluorescent lamp 20, and the pressing force of the insertion direction back conductive plate 14a is the same as that of the insertion direction back lamp pin 21a. It is set to be smaller than the pressing force of the near-side conductive plate 14b to ensure conduction. The pressing force can be increased or decreased by setting the strength of the spring force of the conductive plate 14. Alternatively, the spring force is constant and the gap between the conductive plates 14 (the gap into which the lamp pin 21 is inserted) can be set to be large or small.

  Accordingly, the back lamp pin 21a in the insertion direction passes through the front conductive plate 14b having a strong pressing force, and the front lamp pin 21b is held by the front conductive plate 14b, so that the flat spiral fluorescent lamp 20 is dropped. Can be completely prevented.

  Moreover, it is desirable to provide the stopper part 15 which stops insertion of the insertion direction back lamp pin 21a in the insertion direction back side conductive plate 14a. For example, the insertion direction back side conductive plate 14 a can be formed in a C-shape as a whole, and the C-shaped bottom portion can be used as the stopper portion 15.

  As described above, according to the lamp socket 10 described above, when the flat spiral fluorescent lamp 20 is attached to the lamp socket 10, as shown in FIG. 1 (B), both ends of the arc tube 22 of the flat spiral fluorescent lamp 20 are provided. A pair of lamp pins 21 protruding from a pair of caps 23 provided is inserted into a lamp pin insertion groove 13 of the lamp socket 10, and a pair of lamp pins 21 is inserted into a pair of conductive plates 14 provided inside the lamp pin insertion groove 13. Therefore, it is possible to easily attach the flat spiral fluorescent lamp 20 to the lamp socket 10. At this time, the lamp pins 21 are easily and completely held by the conductive plate 14 by being pushed in until the rear lamp pins 21a in the insertion direction come into contact with the stopper portion 15. In addition, since it is not necessary to provide an opening / closing lid or the like, the size can be reduced.

As shown in FIG. 3, the lighting device 30 according to the present invention is used by being fixed to a wall surface such as a ceiling or a wall, and covers, for example, a rectangular box-shaped device body 32 and a front opening of the device body 32. A panel 33 made of transparent or translucent resin or the like is provided. An electrical component such as a lighting device 34 connected to a commercial AC power source (not shown) is attached to the bottom plate 32a of the appliance main body 32 near one end, and covers the lighting device 34 and the panel 33. A mounting plate 35 for mounting is provided. The panel 33 is detachably attached by screwing the screw 33a into the screw hole 35a of the attachment plate 35 and tightening it.

  Further, a reflecting plate 36 is provided from the center and the other end of the bottom plate 32a to reflect the illumination light of the flat spiral fluorescent lamp 20 as a fluorescent lamp toward the panel 33 and improve the illumination efficiency. A pair of lamp sockets 10 and 10 for mounting the flat spiral fluorescent lamp 20 are attached to the upper surface of the reflector 36. These lamp sockets 10 and 10 are connected to the lighting device 34 by power lines (not shown).

  As described above, according to the lighting fixture 30 described above, when the flat spiral fluorescent lamp 20 is attached to the lamp socket 10 by using the lamp socket 10 described above, both ends of the arc tube 22 of the flat spiral fluorescent lamp 20 are attached. A pair of lamp pins 21 protruding from the provided pair of caps 23 is inserted into the lamp pin insertion groove 13 of the lamp socket 10, and a pair of conductive plates 14 provided inside the lamp pin insertion groove 13 (see FIG. 1). Therefore, the flat spiral fluorescent lamp 20 can be easily mounted on the lamp socket 10 by simply pushing the pair of lamp pins 21 into the lamp socket 21. As a result, both lamp pins 21 are easily and completely held by the conductive plate 14. Moreover, since it is not necessary to provide an opening / closing lid or the like, the lighting fixture 30 can be downsized.

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

(A) is a front view of the lamp socket concerning embodiment of this invention, (B) is a side view, (C) is a bottom view. (A) is a plan view of a flat spiral fluorescent lamp, (B) is a front view as seen from the B direction in (A). The perspective view of the lighting fixture concerning embodiment of this invention A perspective view showing an example of a conventional lamp socket A perspective view showing another example of a conventional lamp socket

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lamp socket 13 Lamp pin insertion groove 14 Conductive plate 14a Insertion direction back side conductive plate 14b Front side conductive plate 15 Stopper part 20 Flat spiral fluorescent lamp (fluorescent lamp)
21 lamp pin 22 arc tube 23 base 24 bridge 30 lighting fixture 32 fixture body

Claims (3)

From a pair of caps provided at both ends of a flat spiral fluorescent lamp having a light emitting tube swirled in a double spiral along the same plane starting from the longitudinal center of the tubular discharge path A lamp socket for supplying power by holding a pair of lamp pins protruding along the axial direction of the discharge tube and disposed in a direction perpendicular to the plane;
The pair of lamp pins can be inserted in a direction orthogonal to the plane , and the lamp pin insertion groove opened in the direction orthogonal to the plane and the pair of lamp pins provided in the lamp pin insertion groove are respectively held. a pair of conductive plates which, was closed,
Of the pair of lamp pins, the lamp pin closer to the opening when held by the lamp socket is used as the front lamp pin, and the lamp pin far from the opening is inserted in the insertion direction. When using the side lamp pin,
The pair of conductive plates is
The outer peripheral curved surface of the front lamp pin has a shape portion that holds and holds the outer peripheral curved surface while being urged by a pressing force directed from the wall surface in the lamp pin insertion groove toward the inside of the lamp pin insertion groove, A front conductive plate having a three-dimensional holding structure provided on the wall surface in the lamp pin insertion groove;
The outer peripheral curved surface of the lamp pin in the insertion direction has a shape portion that holds the outer peripheral curved surface in contact with the outer peripheral curved surface while being urged by a pressing force from the wall surface in the lamp pin insertion groove toward the inner direction of the lamp pin insertion groove. , An insertion direction back side conductive plate having a three-dimensional holding structure provided on the wall surface in the lamp pin insertion groove,
With
The pressing force of the front conductive plate is set to have a strength capable of holding the weight of the flat spiral fluorescent lamp and to be larger than the pressing force of the back conductive plate in the insertion direction. And
The pressing force of the insertion direction rear side conductive plate, the insertion so that the direction inner side lamp pins and reliably conduct can take, and the Rukoto is set to be smaller than pressing force of the front side conductive plate Features a lamp socket. The insertion direction on the rear side conductive plate, the lamp socket according to claim 1, characterized that you have portions of the shape is provided as a stopper portion for stopping the insertion of the lamp pins. An arc tube in which a tubular discharge path is swirled in a double spiral along substantially the same plane with the central portion in the longitudinal direction as a center, a pair of caps provided at both ends of the arc tube, and a cap provided on the cap A fluorescent lamp having a lamp pin extending along the axial direction of the arc tube and a bridge for connecting and supporting the pair of caps;
A lamp socket that is electrically connected to the lamp pin to supply power to the fluorescent lamp;
A fixture body that holds the fluorescent lamp via the lamp socket, and a lighting fixture comprising:
The said lamp socket is a lamp socket of Claim 1 or 2 , The lighting fixture characterized by the above-mentioned.

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