JP323I - Fluorescent lamp device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention accommodates a bent fluorescent lamp and a lighting circuit part of the bent fluorescent lamp in an envelope, and The present invention relates to a fluorescent lamp device in which a screw-type base is attached to one end of an envelope so as to be compatible with an incandescent lamp. (Prior art) Fluorescent lamps are superior in light efficiency to general incandescent light bulbs,
Since it can be used at low voltage, it has recently been used in fluorescent lamps.
In addition to mounting a screw type base for general incandescent light bulbs such as 26 type, incorporating lighting circuit parts such as ballasts, etc. into the socket for screwing and mounting the above general incandescent light bulb,
Development is underway for a fluorescent lamp device that is compatible with this general incandescent light bulb. Such a fluorescent lamp device has advantages such as excellent efficiency and long life because it consumes much less power than a general incandescent lamp having the same brightness. However, in order for this type of fluorescent lamp device to be compatible with incandescent lamps, it is not enough to simply provide a screw-type base, and devices such as reflective shades and gloves already used for incandescent lamps are used. The kind must be ready to use. For this reason, the envelope is required to be considerably compact, and the bending fluorescent lamp housed inside is also required to be small and have a large light output. (Problems to be solved by the invention) However, in a small-sized bent fluorescent lamp having a large light output, it is necessary to increase the lamp power, and the amount of heat generated by the lamp increases. Moreover, a ballast generally used as a lighting circuit component also has a large amount of heat generation. Therefore, these bent fluorescent lamps and ballasts
When it is housed in a single sealed space, the temperature inside the envelope rises, the mercury vapor pressure of the fluorescent lamp becomes too high, and the light output decreases. There is also a problem that the ballast is burned out by heat. On the other hand, when attempting to reduce the size of the fluorescent lamp device as a whole, it is necessary to pay attention to the arrangement of these bent fluorescent lamps and ballasts, and these bent fluorescent lamps and ballasts must be placed close to each other. There must be. Therefore, it is considered that the ballast is housed between the bulbs of the bent fluorescent lamp, that is, in the space surrounded by the straight portions at both ends and the central bent portion. However, in such a case, the bent fluorescent lamp and the ballast exert thermal influence on each other. Especially in ballasts, the whole is impregnated with varnish in order to prevent insulation deterioration.When this varnish is heated, its volatile components evaporate and adhere to the inner surface of the envelope, causing the envelope to However, there is a problem that the light is discolored and the light transmittance is hindered. The present invention is a fluorescent lamp device that reduces the mutual heat effect between the bent fluorescent lamp and the ballast, enables the size reduction by effective use of dead space, and prevents discoloration of the envelope due to evaporation of varnish. Is to provide. [Configuration of the Invention] (Means for Solving Problems) According to the present invention, a partition is provided inside the envelope to provide a first space having the base and housing the lighting circuit component, and the bent fluorescence. It is characterized in that it is partitioned into a second space accommodating a lamp, and that this partitioning board is provided with a recess projecting to the side of the second space, and the lighting circuit component is housed in this recess. (Operation) According to the present invention, the inside of the envelope is partitioned by the partition into the first space and the second space, the lighting circuit components are housed in the first space, and the lighting space is bent in the second space. Since the fluorescent lamp is housed, these lighting circuit parts and the bent fluorescent lamp are thermally cut off by the partitioning board, and mutual heat influence is reduced. Moreover, since the partition board is provided with a recess projecting to the second space side and the lighting circuit component is housed in this recess, the installation space of the lighting circuit component can effectively utilize the dead space, and Becomes compact. Also,
Since the bent fluorescent lamp and the lighting circuit components are separated by the wall of the recess, even if the varnish evaporates, it is prevented from adhering to the inner surface of the envelope on the light emitting side and the discoloration of the envelope is prevented. It Further, since a part of the lighting circuit component is housed in the recess and the remaining part of the component is housed in the first space, the protrusion of the recess toward the second space does not become too large, and the protruding portion The light absorption by the device is small, and the light output is improved as compared with the fluorescent lamp device in which all the lighting circuit components are housed in the recess. Here, a part of the lighting circuit component means a portion located closer to the globe side than the partition board surface around the recessed portion, and the remaining part of the lighting circuit component corresponds to the base side of the partition board surface. Furthermore, it is extremely easy to connect the fluorescent lamp lead wire to the lighting circuit part and the base, and to connect the lighting circuit part and the base, and even if the globe is damaged, the lead wire (live line charging part) is used. It is possible to secure the safety because it is not necessary for the exposed state to be touched by a person. (Embodiment) The present invention will be described below based on an embodiment shown in the drawings. In the figure, 1 is an envelope, and this envelope 1 is constructed by abutting a hollow base 2 and a transparent or semitransparent globe 3. At one end of the hollow base 2, there is a screw-type base 4 such as an E26 type which is connected to a power supply side socket (not shown).
Are fixed together. The other end of the hollow base 2 is closed by a partitioning board 5, which partitions the inside of the envelope 1 into the first space 6 on the hollow base 2 side and the glove 3 side. It is partitioned into the second space 7. The surface of the partition board 5 facing the second space 7 is preferably formed as a reflective surface. In the first space 6 on the hollow base 2 side, for example, a ballast 8 is housed as a lighting circuit component. In this case, the partition board 5 is integrally or integrally formed with a recess 9 projecting toward the second space 7 side in the center thereof, and the ballast 8 is housed in the recess 9. There is. The side wall of the hollow base 2 is provided with a large number of holes 10 for radiating heat, which radiate the heat of the first space 6 inside to the outside. A bent fluorescent lamp 11 is accommodated in the second space 7 on the globe 3 side. The bent fluorescent lamp 11 will be described. Reference numeral 12 is a glass bulb of the bent fluorescent lamp 11.
Is a straight tube type valve that is bent in a substantially U shape at its central portion 12a, and both ends divided by the U shaped bending portion are in a direction orthogonal to a plane including the U shaped portion. It is generally U-shaped and therefore shaped like a saddle of a horse, with two U-shaped sections generally juxtaposed facing each other. Both ends 12b, 12b of the bent valve 12 of the present embodiment are projected ahead of the tip P of the central bent portion 12a. Then, both ends 12b, 12b of such a bent valve 12 are
Discharge electrodes 13, 13 are attached to the respective electrodes. Further, a phosphor coating (not shown) is formed on the inner surface of the bulb 12, and the bulb 12 is filled with a predetermined amount of mercury and an inert gas. In the bent fluorescent lamp 11 having such a structure, both ends 12b, 12b of the bulb 12 projecting ahead of the tip P of the central bent portion 12a pass through the partition board 5 and have a hollow base. It is housed and fixed in the first space 6 on the second side. That is, both ends 12b, 12 of the bent fluorescent lamp 11 are
b is the end faces 12c, 12 of the bulb 12 from the electrodes 13, 13 respectively.
A portion reaching c, that is, a portion that does not contribute to light emission is guided into the first space 6. The both ends 12b, 12b are located beside the ballast 8 in the first space 6. A recess 9 projecting toward the second space 7 is formed at the center of the partition board 5 at both ends 12 of the bent fluorescent lamp 11.
It is formed in a portion surrounded by b and 12b and the central bent portion 12a, and is provided in a dead space, so to speak. The operation of the fluorescent lamp device having such a configuration will be described. While the bent fluorescent lamp 11 is in operation, the lamp 11 itself generates heat and the ballast 8 also generates heat. However, the bent fluorescent lamp 11 is housed in the second space 7 on the side of the globe 3 that is partitioned by the partition board 5, and the ballast 8 is a hollow base 2 that is partitioned by the partition board 5.
Is accommodated in the first space 6 on the side, and thus the partition board 5
Since the fluorescent lamp 11 and the ballast 8 are thermally cut off, mutual heat influence is reduced. When the ballast 8 generates heat, the heat is released to the outside from the large number of heat dissipation holes 10 ... Formed in the side wall of the hollow base 2, so that the abnormal temperature rise of the ballast 8 is prevented. Become. Therefore, the burnout of the ballast 8 is prevented. Further, since the temperature rise of the ballast 8 is prevented, volatilization of volatile substances such as varnish impregnated and applied to the ballast 8 is suppressed. And even if the varnish volatilizes, the ballast 8
Is separated from the second space side by the partition 5 and the wall of the recessed portion 9, so that the volatile substance of the varnish does not enter the second space side, and thus is prevented from adhering to the inner surface of the globe 3. Since there is no need to worry about discoloring the glove 3. The volatile substances of the varnish are discharged to the outside from the heat dissipation holes 10. In addition, the temperature rise of the fluorescent lamp 11 is caused by both ends 12b, 12b.
The discharge electrodes 13, 13 of the
Since b and 12b penetrate the partition board 5 and are inserted into the first space 6 on the hollow base 2 side, the heat generated by these electrodes 13 and 13 is for heat dissipation of a large number of pieces formed on the side wall of the hollow base 2. Hole 10 ...
Is emitted from the outside to suppress the temperature rise of the fluorescent lamp 11. Further, since the recess 9 projecting toward the second space 7 side is provided in the central portion of the partition board 5 and the ballast 8 is housed in this recess 9, the space of the hollow base 2 can be reduced. Moreover, since the recess 9 is formed in the second space 7 in a portion surrounded by both ends 12b and 12b of the bent fluorescent lamp 11 and the central bent portion 12a, this place is a dead space. Therefore, the dead space is effectively used. For this reason, the entire apparatus can be made smaller and more compact. By accommodating a part of the lighting circuit component in the recess and accommodating the rest of the component in the first space, it is possible to prevent the recess from protruding too much toward the second space. When the entire lighting circuit component is housed in the recess, the amount of protrusion of the recess toward the second space inevitably increases, and the light absorption by the protruding portion of the partition board becomes too large. This can be prevented by housing in the first space. As a result, the light output can be improved as compared with the fluorescent lamp device in which all the lighting circuit components are housed in the recess. Since both ends of the fluorescent lamp face the first space side and a part of the lighting circuit component is housed in the first space, the fluorescent lamp is connected to the electrodes 13, 13 of the fluorescent lamp and led out from the end. Connection between the lead wire and lighting circuit parts and the base,
It is extremely easy to connect the lighting circuit parts to the base. Further, the partitioning board is provided with a portion that does not project to the second space side, and that the fluorescent lamp has a saddle shape, and both ends of the fluorescent lamp for connecting the lead wire are the first. It is easy and easy to face the space side. As described above, according to the present invention, the lead wire connection between the fluorescent lamp, the lighting circuit component, and the base can be performed very easily. Since both ends of the fluorescent lamp face the first space side, the lead wire connected to the electrodes 13, 13 of the fluorescent lamp and led out from the end is located in the first space. Therefore, even if the glove is damaged, the lead wire (hot-line charging section) does not have to be exposed so that the user may touch it.
The safety can be secured. [Effects of the Invention] As described above, according to the present invention, the inside of the envelope is divided into the first space and the second space by the partitioning board, and the lighting circuit component is housed in the first space and the second space. Since the bending type fluorescent lamp is housed in the space, the lighting circuit parts and the bending type fluorescent lamp are thermally shielded by the partition board, and the mutual heat influence is reduced. Moreover, since the partition board is provided with a recess projecting to the second space side and the lighting circuit component is housed in this recess, the dead space can be effectively used as a place for installing the lighting circuit component, and Becomes compact. Furthermore, since the bent fluorescent lamp and the lighting circuit component are separated by the wall of the recess, even if the varnish evaporates from the lighting circuit component, it is prevented from adhering to the inner surface on the light transmitting side of the envelope, and Since the discoloration of the envelope is prevented, there is no concern that the light transmittance will decrease. Further, since a part of the lighting circuit component is housed in the recess and the rest of the part is housed in the first space, the light output is higher than that of the fluorescent lamp device in which the rest of the lighting circuit component is housed in the recess. improves. Furthermore, it is extremely easy to connect the fluorescent lamp lead wire to the lighting circuit part and the base, and to connect the lighting circuit part and the base, and even if the globe is damaged, the lead wire (live line charging part) is used. It is possible to secure the safety because it is not necessary for the exposed state to be touched by a person.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show one embodiment of the present invention. FIG. 1 is a perspective view of the entire fluorescent lamp apparatus, FIG. 2 is a side view, and FIG. 3 is a front view. 1 ... Envelope, 2 ... Base, 3 ... Glove, 4 ...
Clasp, 5 ... Divider, 6 ... First space, 7 ... Second space, 8 ... Stabilizer, 9 ... Recess, 10 ... Heat dissipation hole, 11
...... Flexible fluorescent lamp, 12 ...... bulb, 13 ...... electrode.

Claims (1)

[Specification for correction] [Claims for utility model registration] [Claim 1] A saddle-shaped bent fluorescent lamp and lighting circuit parts for the bent fluorescent lamp are housed in an envelope having a base at one end. In the fluorescent lamp device, a first space is defined by partitioning the inside of the envelope by closing the other end of a hollow base having the base at one end and housing the lighting circuit component. And a second space defined by closing one end of a closed globe containing the saddle-shaped bent portion of the bent fluorescent lamp with the partition board. A recess protruding toward the second space is provided, and both ends of the fluorescent lamp face the first space through a portion of the partitioning plate that avoids the recess, and the fluorescent lamp is provided. The saddle-shaped central bent part of the Facing the part to avoid the panel recess, fluorescent lamp apparatus characterized by and to receive a portion of the lighting circuit components in the recessed portion of the remainder of the components housed in the first space. 2. The fluorescent lamp device according to claim 1, wherein the concave portion projecting toward the second space projects between the bulbs of the bent fluorescent lamp. . 3. The fluorescent lamp device according to claim 1, wherein the lighting circuit component is a ballast.