JPS63152802A - Fluorescent lamp apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Objective of the Invention] (Industrial Field of Application) The present invention provides a single-capture lamp in which a lighting circuit component is housed in a cover having a base, and a bent fluorescent lamp is supported on the cover. The present invention relates to a metal-shaped fluorescent lamp device, and relates to a fluorescent lamp device that uses amalgam as a mercury vapor generating source.

(Prior Art) Conventionally, lighting circuit components include a U-shaped, W-shaped, saddle-shaped, etc. bent fluorescent lamp and a ballast in an envelope composed of, for example, a cover with a base and a glove. A fluorescent lamp device has been developed in which a screw cap for an incandescent lamp is attached to the envelope. This type of fluorescent lamp device is becoming popular as an energy-saving light source because it is compatible with incandescent light bulbs.

In addition to the above, in this excellent fluorescent lamp device,
The interior of the container is divided by a partition member, and the lighting circuit component is housed in the space surrounded by the partition M material and the cover, and the bent shape structure is housed in the space surrounded by the partition member and the globe. A structure is employed to accommodate a light lamp.

By dividing the inside of the envelope with partition members, even if heat is generated from a ballast, etc. in the space surrounded by the cover, this heat is prevented from being transmitted to the fluorescent lamp side, and the fluorescent light is It has the effect of suppressing an excessive rise in mercury vapor pressure within the light lamp and preventing a decrease in luminous efficiency.

In addition, even if the temperature inside the space surrounded by the globe rises due to heat generation from the bent fluorescent lamp, this heat is prevented from being transmitted to the space on the cover side by convection, and the lighting circuit such as the ballast is prevented from being transmitted to the space on the cover side. It also has the advantage of preventing thermal damage to components.

However, even if the inside of the envelope is simply partitioned by a partition member, the partition member itself has thermal conductivity, so the heat from the ballast side is transferred to the fluorescent lamp side through the partition member. On the contrary, the heat from the fluorescent lamp may be thermally conducted through the partition member and transmitted to the lighting circuit components, and the amount of heat due to such thermal conduction cannot be ignored.

Therefore, the present applicant formed an insulating air layer in the partition member itself that is connected to the outside air, and from the ballast toward the fluorescent lamp,
Alternatively, we have proposed a fluorescent lamp device in which the heat that is about to be transferred from the fluorescent lamp toward the ballast is blocked by this insulating air layer, thereby suppressing the thermal conductivity of the partition member.

(Utility Application No. 57-57139).

On the other hand, in this type of fluorescent lamp device, since the fluorescent lamp has a high output, the amount of heat generated by the lamp itself is extremely large.

The heat generated from such high-output fluorescent lamps not only causes the bulb temperature to rise excessively, but also causes heat damage to the ballast inside the cover. There is also a mode in which it is used as it is exposed. If you use a fluorescent lamp exposed, the lamp's heat dissipation will improve, preventing the temperature of the lamp itself from rising, and will also suppress the heat transferred from the lamp to lighting circuit components such as the ballast. It also has the advantage of preventing heat damage.

By the way, in this type of fluorescent lamp device, the lamp itself generates a large amount of heat, so if pure mercury is used as the mercury vapor source, the mercury vapor pressure will become too high, leading to a decrease in luminous efficiency. As a result, attempts have been made to use amalgam, which has a low mercury vapor pressure, in place of pure mercury.

(Problem to be Solved by the Invention) However, even if amalgam with low mercury vapor pressure is used as described above, or even if the lamp is used exposed, the fluorescent lamp will not have a high output. Because of this, the lamp generates a large amount of heat, and the heat generated by the lamp causes the temperature of the amalgam to become too high.

In particular, if a fluorescent lamp is surrounded by a glove, heat will accumulate inside the glove, and even if amalgam with low mercury vapor pressure is used, the temperature of the amalgam will become too high, making it difficult to effectively suppress mercury vapor pressure. In such a case, there is a risk that the lamp current may rise abnormally depending on the usage conditions, causing damage to the ballast or lighting tube.

Therefore, the present invention aims to maintain the amalgam temperature at an optimal operating temperature, effectively suppress the mercury vapor pressure, and provide a fluorescent lamp device with good luminous efficiency.

[Structure of the Invention] (Means for Solving the Problems) The present invention accommodates amalgam in a thin tube protruding from an arc tube bulb, and causes this thin tube to protrude into an insulating air layer formed on a partition member. It is characterized by:

(Function) According to the present invention, since the thin tube containing the amalgam is located in the insulating air layer, it is exposed to the outside air and is less affected by heat from the ballast and arc tube bulb. can be maintained at the optimum temperature.

(Embodiments of the Invention) Hereinafter, the present invention will be described as follows.
This will be explained based on an example.

In the figure, reference numeral 1 denotes an envelope, which is configured, for example, in a pole shape by a cover 2 made of metal and a glove 3 made of synthetic resin. The cover 2 of this envelope 1 has a base 4.
The cap 4 is of a screw-in type, for example, E26 type. Further, a plate-shaped partition member 5 made of, for example, synthetic resin is attached to the opening at the other end of the cover 2, and this partition member 5 constitutes a room 6 in which the inside of the cover 2 is separated from the outside. ing.

A ballast 7 as lighting circuit components, a lighting tube (not shown), etc. are housed in the portion m6 on the cover 2 side, and these lighting circuit components are supported by a support (not shown).

Note that ventilation holes 8 are formed in the side wall of the cover 2 to communicate the room 6 with outside air.

On the other hand, if the glove 3 is made of a milky-white or colorless transparent synthetic resin, it has a partially cut-off spherical shape. Another plate-shaped partition member 9 made of, for example, synthetic resin is attached to the above-mentioned cutout opening of the glove 3, and this partition member 9 constitutes a room 10 in which the inside of the glove 3 is separated from the outside. There is.

A bent fluorescent lamp 11 is housed in the room 10 on the side of the globe 3.

The partition member 5 on the cover 2 side and the partition member 9 on the group 0-73 side are opposed to each other with a gap between them. It consists of The partition member 5 on the cover 2 side and the partition member 9 on the glove 3 side are connected by a connector 13 such as a screw, for example, while maintaining the air insulation layer 12 at a distance of about 3 to 10 m. There is.

The bent fluorescent lamp 11 may be U-shaped, W-shaped, etc., but in this embodiment, a saddle-shaped fluorescent lamp is used.

This saddle-shaped fluorescent lamp 11 is constructed by bending a straight glass bulb into a substantially U-shape at the center between both ends thereof, and moving the direction between the central bent part 14 and both ends in a direction perpendicular to a plane including the U-shape. Then bend it once again into a substantially U-shape to form a pair of bent parts 1 on both sides.
5.15 was formed.

Electrodes 16 are provided at both ends of the bent bulb.
A stem 17.17 with 16 is sealed and the inner surface of this bulb is coated with a phosphor coating, not shown.

One stem 17 has a sealed capillary tube 18 projecting from it, leaving a slightly longer exhaust pipe, and an amalgam 19 is accommodated within this capillary tube 18 . As shown in FIG. 3, the narrow tube 18 has a constricted portion 20 formed at its root side, and holds the amalgam 19 housed at the tip side so that it does not enter the inside of the bulb.

Such a bent fluorescent lamp 11 is housed in the globe 3 with the stem side at both ends and the central bent part 14 side facing the partition member 9, and the fitting wall 2 provided on the partition member 9.
2... and this partition member 9 by the valve holder 23.
is supported by Note that the fitting wall 22... is the lamp 1.
The bulb holder 23 elastically holds the central bent portion 14 of the lamp 11, while the bulb holder 23 elastically holds the central bent portion 14 of the lamp 11.

In the lamp 11 supported by the partition member 9 in this way, the thin tube 18 containing the amalgam 19 passes through the insertion hole 21 formed in the partition member 9 and projects into the air insulation layer 12. As shown in the figure, the amalgam 19 within the thin tube 18 is cooled by the air of the air insulation WJ 12.

The operation of the first embodiment having such a configuration will be explained.

A chamber 6 on the side of the cover 2 that accommodates lighting circuit components such as a ballast 7 and a lighting tube (not shown), and a bent fluorescent lamp 1
The room 10 on the glove 3 side that accommodates the partition member 5
and 9, even if lighting circuit components such as the ballast 7 and lighting tube generate heat during lighting, this heat will not be transferred to the fluorescent lamp 11.

In particular, since the air insulation layer 12 is formed between the partition member 5 on the cover 2 side and the partition member 9 on the glove 3 side, this air insulation layer 12 blocks heat from the partition member 5 on the cover 2 side. Blocks out radiant heat.

Therefore, the temperature rise of the fluorescent lamp 11 is suppressed.

On the other hand, the bent fluorescent lamp 11 is located in the room 1 on the globe 3 side.
Since the lamp is housed at 0, the temperature of the lamp itself increases due to its own heat generation. However, air insulation 1 is provided between the partition member 5 on the cover 2 side and the partition member 9 on the glove 3 side.
Since the air insulation 112 is formed, the air insulation 112 blocks heat, suppresses the rise in temperature of the ballast 7, lighting tube, etc. due to heat from the goose 0-73 side, and prevents thermal damage.

Note that the heat radiated from the lighting circuit components such as the ballast 7 and the lighting tube is released to the outside through the ventilation holes 8 formed in the side wall of the cover 2. Excessive temperature rise of circuit components is also prevented, further reducing thermal damage to these components and extending their lifespan.

On the other hand, even if the temperature of the bent fluorescent lamp 11 itself becomes high, the amalgam 1
9 is accommodated, and this 499!18 is passed through the insertion hole 21 formed in the partition member plate 9 and projected into the air insulation 1112, so that the mercury vapor pressure inside the valve is suppressed.

That is, since amalgam is used as a mercury vapor generation source, amalgam has a lower mercury vapor pressure than pure mercury.

In particular, an amalgam 19 is housed in a capillary 18 and the capillary 1
8 protrudes from the air insulation layer 12, the air insulation layer 12 approximates the temperature of the outside air, and the tI of the amalgam 19
temperature can be maintained at optimal operating temperature.

Therefore, the mercury vapor pressure of the lamp during lighting is effectively suppressed, increasing luminous efficiency.

When the structure of the above embodiment is adopted, in the conventional structure in which the thin tube 18 is housed in the chamber 10 on the glove 3 side and does not protrude into the air insulation layer 12, the temperature of the amalgam-filled part is 125°C.
, the lamp current reached 750 mA, whereas the capillary 1
In the case of the present invention in which 8 is protruded from the air insulation W412, it is 10.
It was possible to reduce the lamp current to 6801 mA at 0°C. The input power was also reduced from 37W to 33W, and the temperature of the ballast winding was reduced by 20°C, and the lighting tube was also reduced by 15°C.

In the above embodiment, when the thin tube 18 is made to protrude into the air insulation layer 12, as shown in FIG.
Although it is arranged to be located closer to the air insulation 1112111 than the side partition member 5, the present invention may be configured as shown in FIG. 4 as a second embodiment.

That is, ventilation holes 30 may be formed in the partition member 5 on the cover 2 side in order to promote ventilation of the room 6 on the cover 2 side, and in such cases, and in addition, when the interval between the air insulation layers 12 is small, etc. Air insulation! ! The thin tube 18 protruding from the tube 12 is further inserted into the ventilation hole 30 of the partition member 5 on the side of the cover 2.
It may also be inserted through.

In this way, when the lamp is lit with the cap 4 facing upward, the amalgam 19 in the thin tube 18 accumulates in the constriction part 20 due to gravity, and the constriction part 20 is always located within the air insulation layer 12. Therefore, the temperature rise of the amalgam 19 is suppressed by the air within the air insulation layer 12, and an excessive rise in mercury vapor pressure is prevented.

And in this case, air insulation li! 12 flows into the room 6 on the cover 2 side through the ventilation hole 30, cools the lighting circuit components, and escapes from the ventilation holes 8..., which not only improves the air cooling efficiency of the lighting circuit components, but also Since the air in the air heat insulating layer 12 is constantly replaced, the heat shielding effect is increased, and the cooling effect of the amalgam 19 is also improved.

Furthermore, in the first embodiment, the thin tube 18 containing the amalgam was constructed by sealing the stem 11 with a longer exhaust pipe sealed at the end of the valve, but the present invention is different from that shown in FIG. It may be configured as in the third embodiment shown in FIG.

That is, in this valve, a branch-shaped thin tube 40 is provided protruding from the central bent portion 14 of the bent valve, the amalgam 19 is accommodated in this thin tube 40 in the same manner as shown in FIG. It is made to protrude as shown in FIG. 3 or 4.

In this way, in the case of the first embodiment, the thin tube 1
8 is led out from the stem 17, it is relatively close to the electrode 1116, and there remains a concern that it will easily receive heat from the electrode 16 even though the portion containing the amalgam 19 protrudes into the air insulation layer 12. On the other hand, as shown in FIG. 5, in the case of this embodiment in which a thin tube 40 is provided protruding from the central bent portion 14 of the valve and this thin tube 40 is made to protrude into the air insulation layer 12, the amalgam 19 accommodation portion is The temperature of the amalgam 19 can be controlled more effectively without receiving heat from the electrode 14.

Furthermore, the present invention is not limited to fluorescent lamp devices using saddle-shaped fluorescent lamps 11.

For example, it can be implemented in a fluorescent lamp device as shown in FIG. 6 as a fourth embodiment.

FIG. 6 shows the entire structure developed, and the bent fluorescent lamp 11 includes, for example, three U-shaped bulbs 50a,
It is constructed by connecting 50b and 50c. Adjacent U-shaped bulbs 50a, 50b, 50c are connected to each other at their ends by branch pipes 51a, 51b, forming a meandering discharge path as a whole. A stem 17 provided with an electrode 16 is sealed at each end of the U-shaped bulbs 50a and 50c located at both ends.

The U-shaped bulb 50b located in the center is sealed by a stem without electrodes, that is, a dummy stem 52.

In such a configuration, a thin tube 53 is protruded from the dummy stem 52 using an exhaust pipe, an amalgam is housed in the thin tube 53, and the thin tube 53 is inserted as shown in FIG. 3 or 4. , protrudes from the air insulation layer 12.

Even with such a configuration, the same effects as the third embodiment can be achieved.

Further, in each of the above embodiments, the partition member 5 on the cover 2 side and the partition member 9 on the glove 3 side are constructed separately and connected by screws 13, but these two partition members are air-insulated. It may also be a one-piece molded article with layer 12.

Furthermore, the shape of the globe is not limited to a spherical shape, but may be cylindrical or the like.

Further, in each of the above embodiments, the fluorescent lamp 11 is connected to the globe 3.
Although the case where the glove 3 is covered has been described, the present invention is not limited to this, and can be implemented even if the glove 3 is not used.

When the fluorescent lamp 11 is not covered with the globe 3, there is an advantage that the temperature of the lamp 11 itself is prevented from rising, compared to when the fluorescent lamp 11 is covered. However, since this type of lamp 11 has a high output, it generates a large amount of heat, and there is a risk that the ballast 7 inside the cover 2 will be heated through the partition plate 9.5. When the air insulation 11!112 is formed on the closing member 6o covering the opening of the lamp 2, it becomes difficult to transmit the heat of the lamp 11 to the ballast 7, which has the advantage of thermally protecting the ballast 7.

Moreover, since the thin tube 18 containing the amalgam 19 is protruded so as to be located within the air insulation layer 12 formed in the closing member 60, the amalgam 19 is thermally isolated from the heat radiation of the lamp 11 and is not affected by the heat of the lamp 11. This makes it possible to better control the mercury vapor pressure.

Note that when the fluorescent lamp 11 is not covered with the globe 3 as described above, the opening of the cover 2 is covered with the closing member 60 instead of the partition plate 9.5. [Effects of the Invention] As explained above, according to the present invention, the amalgam is accommodated in the thin tube protruding from the arc tube bulb, and the thin tube is placed in the insulating air layer formed in the closing member. Because I made it stand out,
Even with the use of high-power flex-type fluorescent lamps, the temperature of the amalgam is maintained at its optimum operating temperature because the amalgam is cooled by the outside air in the insulating air layer. Therefore, mercury vapor pressure can be effectively suppressed, and luminous efficiency can be increased. Therefore, an abnormal increase in lamp current is prevented, and the life of the ballast and lighting tube can be extended.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention, in which FIG. 1 is an overall sectional view, FIG. 2 is an overall sectional view in different directions,
Fig. 3 is an enlarged sectional view of the part 1 in the first factor, Fig. 4 is a sectional view of the main part showing the second embodiment of the invention, and Fig. 5 shows the third embodiment of the invention. FIG. 6 is an exploded cross-sectional view of the entire structure showing a fourth embodiment of the present invention, and FIG. 7 is a cross-sectional view of the entire structure showing a fifth embodiment of the present invention. 1... Envelope, 2... Cover, 3... Glove,
5... Partition member, 7... Ballast, 9... Partition member, 11... Bent fluorescent lamp, 12... Air insulation layer, 16... Electrode, 17... ... Stem, 1g,
40.53...tubule, 19...amalgam, 60
...Closing member. Applicant's agent Patent attorney Takehiko Suzue 1 Figure 6 Figure 7

Claims (2)

[Claims] (1) The opening at the other end of the cover, which has a cap at one end, is closed with a closing member, and the lighting circuit components are housed within this cover, and a bent fluorescent lamp is attached to the outside of the closing member. The lamp has a luminous bulb with a thin tube protruding from the bulb that communicates with the interior space of the bulb, and an amalgam contained in the tube, and a fluorescent lamp with an insulating air layer connected to the outside air in the closing member. A fluorescent lamp device characterized in that a thin tube containing the amalgam is projected into the insulating air layer. (2) The bent fluorescent lamp is surrounded by a globe, and the interior of the globe and the interior of the cover are separated by a partition member corresponding to the closure member, and an insulating air layer is formed in this partition member. Claim 1 characterized by
Fluorescent lamp device as described in Section 1.