JP2009158174A - Lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting device with a spiral glass arc tube and enabling safe and efficient installation of arc tubes of different wattages. <P>SOLUTION: The lighting device includes a fluorescent lamp 5 of a spiral glass tube form having one pair of bases 23 at both outer ends of the tube and sockets 11 mounted on a device body 3 to electrically and mechanically connect the bases 23 of the fluorescent lamp 5. The sockets 11 are provided so that they can move on the device body 3 to match the sockets with the bases of the fluorescent lamp 5 of different wattage. The device body 3 can use fluorescent lamps of different wattages and different base sizes. In other words, the lighting device enables its single body to use a plurality of fluorescent lamps of different wattages. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a lighting device using a fluorescent lamp.

Conventionally, as shown in FIG. 4, a fluorescent lamp 200 is proposed that includes an arc tube 201 in which a series of discharge paths are formed of a double spiral spiral glass tube on substantially the same plane.
The fluorescent lamp 200 is of a double base type, and is provided with a pair of bases 203 at both ends of a double spiral shape. The fluorescent lamp 200 having such a structure has a thickness about the tube diameter of the arc tube 201, and can provide a thin design as a lighting fixture, and is also substantially surface emitting. It can be employed in many scenes (see, for example, Patent Document 1).

JP 2006-12484 A

  By the way, in general, the larger the wattage, the larger the size of the fluorescent lamp. In the straight tube type and the circular shape, there are standards for length and diameter according to the wattage. Also in the lighting device shown in FIG. 4, the distance between the pair of caps 203 is changed depending on the wattage. Therefore, if the wattage of the fluorescent lamp is different, the appliance body also requires a different housing, and there is an inefficient problem that the lighting fixture is replaced when the wattage is changed. When a fluorescent lamp with a wattage different from the setting is forcibly attached to the luminaire body, excessive current flows due to output control with a different wattage, such as a fluorescent lamp breakage due to a difference in the base position. There are problems such as a significant decrease in service life.

  The present invention has been made to solve the conventional problems, and provides an illuminating device having an arc tube composed of a spiral glass tube, which can efficiently and safely cope with a wattage change. For the purpose.

  An illuminating device of the present invention includes a fluorescent lamp having a pair of caps at an outer peripheral end of a spiral glass tube, and a socket that is provided on a fixture body and electrically and mechanically connects the caps of the fluorescent lamps. In the lighting fixture, the socket has a configuration in which the installation position can be moved with respect to the fixture body in accordance with different base positions of fluorescent lamps having different wattages.

  With this configuration, the installation position of the socket can be moved with respect to the instrument body, so the size of a fluorescent lamp with a different distance between a pair of caps can be changed by moving the socket position, and multiple sizes with different wattages It is possible to provide an illuminating apparatus that can use a plurality of fluorescent lamps having different wattages with a single luminaire main body that can use the fluorescent lamps.

  Moreover, the illuminating device of this invention has a structure provided with the lighting control part which controls the output corresponding to the wattage of a fluorescent lamp according to the position after the movement installation of the said socket.

With this configuration, when the fluorescent lamp dimensions are specified by the fluorescent lamp wattage, the socket position is also determined at the same time. By following this socket position, the fluorescent lamp wattage is specified, and the lighting control device Output control corresponding to the wattage of the fluorescent lamp is performed according to the position of the socket after the moving installation. Therefore, it is possible to prevent an excessive current from flowing through the fluorescent lamp.
As a lighting control device, by using a multi-inverter, it is possible to cope with output control with fluorescent lamps having different wattages.

  According to the present invention, since the installation position of the socket can be moved with respect to the main body of the lighting device, it is possible to use a plurality of fluorescent lamps having different wattages in a single lighting fixture main body. In addition, since the lighting control device controls the output corresponding to the wattage of the fluorescent lamp according to the position of the socket after the moving installation, the output control is performed by specifying the wattage of the fluorescent lamp corresponding to the socket position. It is possible to provide an illuminating device having an effect of preventing an excessive current from flowing through the fluorescent lamp.

Hereinafter, an illumination device according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view showing an illuminating device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA of the illuminating device of FIG. 1 without a fluorescent lamp 5, and FIG. It is a fragmentary sectional view of a lamp support spring position.
In each drawing, for convenience of explanation, the irradiation surface is shown facing upward. Therefore, when using the illuminating device 100 in a suspended state, the vertical positional relationship is reversed.

As shown in FIG. 1, the illuminating device 100 of embodiment which concerns on this invention is comprised from the main body 3, the fluorescent lamp 5, and the transparent cover 7 which make | form a substantially circular thin box shape. When these are assembled, the lighting device 100 is obtained.
The fluorescent lamp 5 is a series of discharge paths, which are substantially spirally wound in a double spiral shape, a pair of caps 23 disposed at both ends of the spiral arc tube 21, and both caps 23. Alternatively, it includes a bridge 25 that holds and fixes the arc tube 21 in the vicinity thereof and suppresses breakage of the arc tube 21.

  The bridge 25 is not an essential component of the arc tube 21, but this can stabilize the arrangement of the base 11 and improve the strength of the fluorescent lamp 5. Further, on the bridge 25, it is desirable to provide a filler between the cap 11 and the adjacent arc tubes 21 or between the adjacent arc tubes 21. Thereby, the intensity | strength of the arc_tube | light_emitting_tube 21 can be increased and heat dissipation of the lamp base 11 which generate | occur | produces can be aimed at.

Inside the main body 3, there is provided a flat base 15 that holds the fluorescent lamp 5 and is painted white and also serves as a reflector. The base 15 includes a pair of sockets 11 that are electrically connected to a pair of caps 23 of the fluorescent lamp 5 and a pair of fluorescent lamp support springs 13 that support the bridge 25 and fix the fluorescent lamp 5 to the base 15. It is done. As shown in FIG. 2, a space for wiring a lighting device 27 that supplies power to the fluorescent lamp 5 and a lamp line (not shown) is provided on the back side of the base 15.
The transparent cover 7 is made of, for example, polycarbonate resin and has translucency. The transparent cover 7 is provided with a hooking claw 9 at its edge, and the engagement hole 18 provided with the hooking claw 9 in the base 15. The transparent cover 7 is detachably fixed to the main body 3.

  At each socket 11 support position of the base 15, a socket support elongated hole 17 for position adjustment is arranged as a long hole connecting different support positions depending on watts, fixing the socket 11, and further supporting each fluorescent lamp support spring 13. In the position, a support spring support elongated hole 19 for position adjustment is disposed as an elongated hole connecting the support positions that differ depending on the watts, and the fluorescent lamp support spring 13 is fixed.

Next, with reference to FIG. 2, the position adjustment and output control accompanying the change in wattage will be described.
The lighting device 200 is a cross-sectional view of the state in which the fluorescent lamp 5 is not attached to the main body 3, and the position of the socket 11 on the base 15 is, for example, the position X (solid line and one-dot chain line) where the base 23 of a 20 W fluorescent lamp is attached. Is shown). For example, in the case of a 15 W fluorescent lamp, the position Y to which the base 23 is attached is indicated by a dotted line. Although the configuration for the relocation will be described later, the position of the fluorescent lamp support spring 13 is also in accordance with the position of the socket 11. In addition, the transparent cover 7 which is a light projection side is the upper side in FIG.
On the back side of the base 15 with respect to the socket 11, a lighting device (lighting control unit) 27 is provided in a state of being built in the main body 3.

A slide portion 29 fixed to the base 15 side base portion of the socket 11 is provided, and the slide portion 29 is slidably mounted in the socket support long hole 17 provided in the base 15. Therefore, as described above, for example, the socket 11 is held so as to be movable and fixed between a position X where a 20 W fluorescent lamp is attached and a position Y where a 15 W fluorescent lamp is attached.
When the setting of the wattage of the fluorescent lamp 5 is completed in the factory, the socket 11 and the fluorescent lamp support spring 13 are fixed at the position X or the position Y, and the set wattage is displayed in a prominent position. The fluorescent lamp 5 of that wattage is attached and shipped.

Therefore, since the installation position of the socket 11 can be moved with respect to the instrument main body 3, it is possible to cope with the size change of the fluorescent lamp having a different distance between the pair of caps 23 by moving the position of the socket 11, and It is possible to deal with fluorescent lamps having a plurality of wattages by using the instrument main body 3 that enables use of fluorescent lamps 5 of different sizes, that is, the main body 3 having the same configuration.
The shape of the main body 3 is a cylindrical shape corresponding to the shape of the fluorescent lamp in FIGS. 1 and 2, but is not limited to this, and the shape of the fluorescent lamp such as an elliptical shape or a polygonal shape is used. It does not have to be compatible.

  Furthermore, when the size of the fluorescent lamp 5 is specified by the wattage of the fluorescent lamp 5, the position of the socket 11 is also determined at the same time. Therefore, the wattage of the fluorescent lamp 5 can be specified by following this socket 11 position. In the lighting device (lighting control unit) 27, output control corresponding to the wattage of the fluorescent lamp can be performed according to the position after the socket 11 is moved and installed. Therefore, it is possible to prevent an excessive current from flowing through the fluorescent lamp.

  And as a lighting control apparatus, it can respond to the output control in the fluorescent lamp from which a wattage differs with one inverter by utilizing a multi inverter. That is, the lighting device (lighting control unit) 27 provided on the back side of the base 15 with respect to the fluorescent lamp 5 can use a multi-inverter that can handle a plurality of wattages. In this case, socket position setting means for specifying the wattage by the positions X and Y of the socket 11 and controlling the output control of the multi-inverter which is the lighting device 27 according to the specified wattage is provided. This socket position setting means is provided in the multi-inverter, and can set the set wattage by hand in the assembly process.

  Here, at least one socket 11 or fluorescent lamp support spring 13 is provided with position detection means, connected to a multi-inverter, and the multi-inverter is automatically used for control by detecting the transfer of the socket 11 or fluorescent lamp support spring 13. You can also specify the wattage. As this position detection means, it is also possible to use a configuration such as a connecting rod 28 extending from the slide portion 29 to the lighting device 27 or a position detection sensor that is an electrical connection, such as the socket 11 or the fluorescent lamp support spring 13. is there.

Next, with reference to FIG. 3, the structure of the transfer of the fluorescent lamp support spring 13 will be described.
FIG. 3 shows a partial cross section in a state where the arc tube 21 is supported by the fluorescent lamp support spring 13 in the illumination device 100. A fixing screw 33 is disposed on the spring base 13 b of the fluorescent lamp support spring 13. The fixing screw 33 is passed through the spring base 13b and then the support spring support slot 19 provided in the base 15 in order from the arc tube 21 side. Further, the fixing screw 33 is fixed by a fixing nut 35 through the support plate 31. Therefore, the spring base 13 b sandwiches the base 15 together with the support plate 31, and the fluorescent lamp support spring 13 is fixed to the base 15 by tightening the fixing screw 33 and the fixing nut 35.
The arc tube 21 is held by a bridge 25, and the spring support portion 13 a of the fluorescent lamp support spring 13 is pressed against the bridge 25 and holds the fluorescent lamp 5 in the main body 3. The fluorescent lamp 5 is fixed at position X.

  Here, when the fluorescent lamp support spring 13 is moved to the position Y of the socket 11, first, with the arc tube 21 removed, the fixing screw 33 and the fixing nut 35 are loosened to such an extent that they cannot be removed. Then, the support plate 31 is moved, the fixing screw 33 is held at a position corresponding to the position Y of the socket 11, and tightened with the fixing screw 33 and the fixing nut 35. At this time, although not shown in FIG. 3, the connecting rod 28 extending from the slide portion 29 to the lighting device 27 serves as a position detection means, and switching in the lighting device 27 is performed to switch the output control to the corresponding wattage. Note that the fixing nut 35 may be unnecessary by tapping the support plate 31.

The fluorescent lamp support spring 13 may be fixed to the slide portion 29 of the socket 11 or may be integrated with the support plate 31. In this case, only one support slot is required.
With this configuration, the manufacturing process of the support long hole can be reduced, the mounting process of the socket 11 and the fluorescent lamp support spring 13 can be simplified, and the occurrence of misalignment between the socket 11 and the fluorescent lamp support spring 13 can be suppressed. it can.

  As described above, since the lighting device according to the present invention can move the installation position of the socket with respect to the instrument body, the position of the socket can be moved with respect to the size change of the fluorescent lamp having a different distance between the pair of caps. It is useful as an illuminating device that can be made compatible with fluorescent lamps of a plurality of wattages by using the main body 3 having the same configuration that can use fluorescent lamps of different sizes with different wattages. Moreover, output control corresponding to the wattage of the fluorescent lamp can be performed according to the position of the socket after the moving installation. Therefore, it is possible to prevent an excessive current from flowing through the fluorescent lamp. Furthermore, as a lighting control device, it becomes useful as a lighting device that can support output control with fluorescent lamps having different wattages by a single multi-inverter.

It is a disassembled perspective view which shows the illuminating device of embodiment which concerns on this invention. It is sectional drawing of the AA line in the state without the fluorescent lamp 5 of the illuminating device of FIG. It is a fragmentary sectional view of the fluorescent lamp support spring position of the fluorescent lamp. (A) is a top view which shows the conventional illuminating device, (B) is a side view which shows the conventional illuminating device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Lighting fixture 3 Main body 5 Fluorescent lamp 7 Transparent cover 11 Socket 13 Fluorescent lamp support spring 15 Base 17 Socket support long hole 19 Support spring support long hole 21 Light emitting tube 23 Base 25 Bridge 27 Lighting device 28 Connecting rod 29 Slide part 31 Support plate

Claims (2)

In a lighting fixture comprising a fluorescent lamp having a pair of caps at the outer peripheral end of the spiral glass tube, and a socket provided in the fixture main body for electrically and mechanically connecting the cap of the fluorescent lamp,
The lighting device is characterized in that the socket is provided so that the installation position can be moved with respect to the device main body according to the position of the base of the fluorescent lamp having a different wattage.   The lighting fixture according to claim 1, further comprising a lighting control unit that controls an output corresponding to a wattage of the fluorescent lamp according to a position of the socket after the moving installation.

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