JPS60264038A - Fluorescent lamp appratus - Google Patents

Abstract

PURPOSE:To make it possible to improve the build up of light output by arranging the amalgam of high concentration mercury closely to the electrode so as to quickly supply the mercury at the first stage of burning and by controlling the mercury vapor pressure with its exhaust tube of the coldest portion at the steady burning time. CONSTITUTION:A translucent globe 3 is mounted on the shell having E type base 5 and its space is divided into the spaces 1a, 1b of No.1 and No.2 with a diaphragm 12, and a fluorescent lamp arraratus is formed by enclosing a stabilizer 16 in the 1b and by enclosing the bent tube fluorescent lamp 17 of double U-type whose electrode 19 is closely arranged with the amalgam 21 of high concentration mercury and further by supporting the lamp 17 with the holding portion 14 so as to have its exhaust tube 22 which is extended into the No.1 space 1a. Therefore, the build up of light output at the first stage of burning can be improved by quickly supplying the mercury from the amalgam 21 and also, the mercury vapor pressure of discharging space at the steady burning time can be properly controlled with its exhaust tube 22 of the coldest portion.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a fluorescent lamp device, and more particularly to a light bulb base in which a curved fluorescent lamp and its lighting means are housed in a spherical envelope equipped with an E-shaped base. This invention relates to a control mechanism for the mercury vapor pressure of a curved fluorescent lamp in a fluorescent lamp device.

[Prior art]

Generally, this type of fluorescent lamp device is constructed by housing a double U-shaped curved fluorescent lamp and lighting means for the curved fluorescent lamp in a spherical envelope made of resin made of E1F40 gold, for example. .

According to this fluorescent lamp device, it can be used as easily as an incandescent light bulb by simply screwing the E-type cap into a socket or socket connected to an AC power source, and it consumes less energy than an incandescent light bulb of the same brightness. Because it consumes much less electricity and has a long lifespan,
Recently, they have become widespread not only in department stores and coffee shops, but also in ordinary households.

However, in this fluorescent lamp device, the curved tube fluorescent lamp and the lighting means are housed in the envelope so that they are almost exposed to the outside air, so that during operation, the curved tube fluorescent lamp does not light up. Due to the synergistic effect of the heat dissipated from the lamp and the lighting means, mainly the ballast, the internal temperature becomes extremely high, making it impossible to control the mercury vapor pressure of the curved tube fluorescent lamp to an optimum value that maximizes the light output. As a result, there is a problem in that the optical output is significantly reduced, for example, by 10 to 20%.

Therefore, in order to solve this problem, for example, Japanese Utility Model Application Publication No. 56-52851 discloses that a spherical envelope equipped with an E-shaped cap is connected to the first part by a partition plate. A fluorescent lamp device which is divided into a second space and a double U-shaped curved tube fluorescent lamp is housed in the second space so that its exhaust pipe protrudes into the first space is a fluorescent lamp device. No. 58-1980 discloses that a spherical envelope equipped with an E-shaped cap is connected to the first part by a partition plate. divided into a second space,
Further, there is provided a fluorescent lamp device in which a U-shaped curved tube-shaped fluorescent lamp is housed in a second space with a part of the U-shaped curved portion thereof protruding into the first space. 58-6085
Publication No. 6 discloses 2 in which a discharge path is formed in the outer tube in a tight state.
Separate inner tube type fluorescent lamp devices are disclosed.

According to these fluorescent lamp devices, for example,
In Japanese Utility Model Publication No. 52851, the exhaust pipe of a curved fluorescent lamp protruding into the first space is the coolest part, in Japanese Utility Model Publication No. 58-19810, the curved part is the coolest part, and in Japanese Utility Model Application Publication No. 58-60856, the outer pipe is the coolest part. Since the mercury vapor pressure in the discharge space can be controlled to be close to the optimum value, the decrease in light output of the curved tube fluorescent lamp can be reduced even if the internal temperature of the envelope becomes undesirably high. It is something.

However, if the ambient temperature drops below, for example, 5 to 10 degrees Celsius, it takes a long time for the coldest part to reach the appropriate temperature at the initial stage of lighting, so the rise of the light output will be delayed, for example, as shown by the solid line in Fig. 4. A serious problem arises in that the lighting process becomes extremely slow and a sufficient lighting effect cannot be expected.

[Problem that the invention seeks to solve]

Therefore, in order to solve this problem, for example, in the Dempa Shimbun dated April 16, 1981, a curved tube fluorescent lamp was housed in an envelope, and the inside of the exhaust pipe of the curved tube fluorescent funde was published. A so-called double amalgam type fluorescent lamp device has been announced, in which a main amalgam using indium bismume is arranged in the vicinity of the electrode, and a sub amalgam using indium is arranged near the electrode.

According to this fluorescent lamp device, in the initial stage of lighting, the secondary amalgam is rapidly heated by radiant heat and conductive heat from the electrodes, and as mercury is supplied to the discharge space, the rise in light output can be effectively improved. It is something. However, when manufacturing curved tube fluorescent lamps, the main amalgam must be placed inside the exhaust pipe, which complicates the manufacturing process and increases the ejection resistance depending on the arrangement of the main amalgam. invited,
This causes the inconvenience that the effect of discharging the sword is likely to be impaired.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a fluorescent lamp device that can effectively improve manufacturing operations without impairing the rise characteristics of light output at the initial stage of lighting at low temperatures.

[Failure to solve the problem]

Therefore, in order to achieve the above object, the present invention connects an envelope provided with connection means to an AC power source to the first one by a partition plate. The first space is divided into a second space, and the first space accommodates the lighting means for the curved fluorescent lamp, and the second space accommodates the curved fluorescent lamp. extends into the first space through the partition plate, and an amalgam with a mercury concentration that does not have the function of controlling the mercury vapor pressure in the discharge space during steady operation is placed near the electrodes of the curved fluorescent lamp. At the initial stage of lighting, mercury is quickly supplied from the amalgam to the discharge space, and during steady lighting, the first
The mercury vapor pressure in the discharge space is controlled by using a part of the curved tube-shaped fluorescent pump extending in the space as the coldest part.

[Effect]

According to this invention, at the beginning of lighting, the amalgam disposed near the electrodes is rapidly heated by radiant heat and conductive heat from the electrodes, and mercury is forcibly supplied from the amalgam to the discharge space within a short time. As a result, even if the ambient temperature is low, the rise in light output at the initial stage of lighting can be sufficiently improved. During steady lighting, a part of the curved tube-shaped fluorescent tube extending into the first space becomes the coldest part, and the mercury vapor compression in the discharge space is properly controlled without being affected by the amalgam at all. be done.

〔Example〕

Next, one embodiment of the present invention will be described with reference to FIGS. 1 to 8.

In the figure, reference numeral 1 denotes an envelope, which is composed of, for example, a base 2 and a translucent glove 3.

The base 2 is composed of a shell 4, which is a metal member, for example, and an E twister (connection means) 5 attached to the top of the shell 4. A mounting hole 6 for the ballast (lighting means) is formed, a ventilation hole 7 is formed at the top or side, and a step 8a and a locking recess 9 formed by a protrusion 8 projecting inward are formed at the lower part of the side. has been done.

The step portion 8a and the locking recess 9 may be formed continuously over the entire circumferential surface of the shell/I/4, or may be formed partially. The glove 8 is formed into a substantially spherical shape using, for example, Acrylic resin or polycarbonate resin, and a locking convex portion 10 is integrally formed at the upper opening edge of the glove 8 in correspondence with the locking recess 9 of the base 2. is formed. Note that, for example, a notch 11 is formed in the upper end opening portion of the globe 3.

The inner space of the envelope 1 is separated by a first partition plate 12. It is divided into second spaces la and 1b.

This partition plate 12 is constructed by integrally forming a cylindrical holding part 14 on the outer surface of a bottom surface part 13b of a bottom surface part 13b of a main body part 18 having a flange part 13a on the periphery, and a separating plate 15 on the inner surface thereof. ing. The partition plate 12 is made of a resin material, preferably polybutylene terephthalate resin (PBT resin) to which 5 to 30 weight percent of Gafunu fiber and 0.1 to 5 weight percent of an inorganic white pigment are added.

A first space 1a divided by this partition plate 12
For example, a double U-shaped curved tube fluorescent lamp 17 is housed separately in the second space 1b, and the ballast 16 utilizes the mounting hole 6 at the top of the shell 4. It is fixed without screws. Further, the curved tube-shaped fluorescent fan 17 is supported by inserting its end into the holding portion 14 so that an exhaust pipe, which will be described later, extends into the first space 1a. This curved tube-shaped fluorescent lamp 17 has a stem 20 which has electrodes 19 at both ends of a glass bulb 18 bent into a double U-shape, for example, and is hermetically sealed, and an amalgam 20 with a high concentration of mercury is placed near one electrode. In addition, an exhaust pipe 22 is integrally formed with the stem 20 on which the amalgam 21 is arranged. It should be noted that the amalgam 21 may be provided on the pole wire supporting the electrode 19 by fixing a metal plate thereto, or may be provided on the electrode side of the stem 20.

In particular, indium is suitable as the amalgam-forming metal for forming the amalgam 21, but examples include cadmium, thallium, lead, tin, gold, silver, copper, and indium-bismuth. Lead-bismuth, lead-binumuth-tin, lead-tin, tin-binumuth, tin-indium, etc. may also be used.

When the fluorescent lamp device constructed in this manner is connected to an AC power source in a low temperature atmosphere, the curved tube fluorescent lamp 1
No. 7 lights up, but sufficient light output cannot be obtained because the mercury evaporation pressure in the discharge space is extremely insufficient. However, as a result of the lighting, the amalgam 21 is rapidly heated by radiant heat and conductive heat from the electrode 19, and as a result, almost all the mercury is supplied from the amalgam 21 to the discharge space, and the light output also rises rapidly. Then, when the steady state of lighting is reached,
The internal temperature of the second space 1b becomes undesirably high, and the mercury vapor pressure in the discharge space also becomes high. However, in this state, the exhaust pipe 22 protruding into the first space 1a becomes the coldest part, the discharge space is controlled to the mercury vapor pressure determined by the temperature of the coldest part, and excess mercury in the same space becomes the coldest part. Condensed into parts.

As a result, the light output during steady lighting can also be improved.

On the other hand, when the curved image light lamp 17 is turned off, the mercury sequentially returns to the amalgam-forming metal Qυ and forms the amalgam 21 again. At this time, the mercury concentration in the amalgam 21 becomes so high that it does not have a mercury vapor pressure control function during steady lighting.

According to this embodiment 1, the rise in light output at the initial stage of lighting at low temperatures can be rapidly improved by replenishing mercury from the amalgam 21, so a sufficient lighting effect can be expected, and during steady lighting, the first space 1a Exhaust pipe 22 protruding into
Since the mercury vapor particles in the discharge space can be properly controlled by using the second space 1b as the coldest part, a high light output can be obtained even though the internal temperature of the second space 1b is undesirably high.

In particular, during steady lighting, the exhaust pipe 22 is heated by heat radiation from the ballast 16, so it may not function effectively as the coldest part. By arranging the separator 15 in the shell 4 and forming the ventilation holes 7 in the shell 4, the thermal influence from the ballast 16 can be alleviated, the cooling part can be sufficiently functioned, and the light output can also be improved.

Furthermore, since the amalgam 21 is disposed only near the electrodes, manufacturing work is easier and mass productivity is improved compared to a double amalgam type fluorescent lamp device.

In this regard, the present inventors have developed a fluorescent lamp device shown in Figs.
A curved image light lamp with a height TJ of 85 mm, an exhaust pipe outer diameter of 8.5 φ, and a length of 25 mm is installed, with the exhaust pipe 22 extending from the partition plate 12 to the 20 mm first space 1a. Two nickel plates are attached near the electrodes of the conventional type curved image light lamp and the conventional type curved image light lamp supported so as to protrude from the nickel plate.
My indium is formed into a thin film, and 10m2
A mercury according to the present invention was prepared in which mercury was sealed in a gaffne bulb, and the temperature was controlled at 10°C. When the lamp was turned on in a hot bath, the rise characteristics of the light output showed the results shown in FIG. 4. In the figure, the solid line shows the light output characteristics of the conventional fluorescent lamp device, and the dotted line shows the light output characteristics of the fluorescent lamp device of the present invention.

As described above, according to the specifications of the present invention, the light output can be increased to about 100% within an extremely short period of time by properly compensating for the mercury shortage in the discharge space at the initial stage of lighting. It takes a long time of 205+ to reach a steady state, which is a practical problem.

However, the mercury concentration in the indium amalgam must be set to about 51 to 9 atomic coefficients so that it does not have the function of controlling the mercury vapor pressure in the discharge space during steady lighting, and furthermore, the absolute amount of mercury in the amalgam is For a curved image light lamp having the above specifications, a value of about 0.01 to 5'Q is appropriate.

If this absolute amount is small, the supply of mercury to the discharge space will be insufficient and the rise of the light output will be poor.If the absolute amount is too large, the light output will rise sufficiently at the beginning of lighting, but the discharge space As a result, the mercury vapor pressure in the discharge space cannot be controlled by the exhaust pipe, and the mercury vapor pressure becomes too high, causing a temporary drop in light output. The amount of mercury in this amalgam is appropriately set depending on the type of metal forming the amalgam.

〔Effect of the invention〕

As described above, according to the present invention, since the amalgam is disposed only in the vicinity of the electrodes, the manufacturing work of the curved image light lamp can be carried out efficiently. In addition, at the initial stage of lighting, an appropriate amount of mercury is forcibly supplied to the discharge space by heating from the amalgam electrode, so that the rise in light output can be effectively improved. Moreover, during steady lighting, the mercury vapor pressure in the discharge space is controlled by using the part of the curved image light lamp that penetrates the partition plate and extends into the first space as the coldest part, so that sufficient light output can be achieved. Can be secured. In addition, in lamps in which mercury vapor pressure is controlled by amalgam, the amount of mercury enclosed must be controlled with extreme precision in order for the composition ratio of the amalgam-forming metal to mercury to be in a constant relationship with the equilibrium mercury vapor pressure. above,
This poses a major manufacturing problem, such as the need to prevent oxidation of the amalgam-forming metal during lamp manufacturing, but in the present invention, it is sufficient to supply a moderate amount of mercury from the amalgam when the lamp is lit, so the absolute amount of mercury enclosed can be reduced. It does not require much precision, the manufacturing method is easy, and mass production is possible.

In the present invention, the base that constitutes a part of the envelope may be made of a resin material in addition to a metal member. or,
The shape of the partition plate is not limited to a hat shape, but can be arbitrarily set such as a flat plate shape. Further, adhesives, screws, etc. can also be used as a connection means between the base and the glove. Furthermore, the extending portion of the curved tube-shaped fluorescent foundation to the first space may be the curved portion 1872 of a glass bulb, in addition to the exhaust pipe.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing one embodiment of the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is a side sectional view showing an exploded state, and FIG.
The figure is a diagram showing the rise characteristics of optical output. In the figure, 1 is the envelope, 1a and 1b are the first . second space, 1
2 is a partition plate, 16 is a lighting means (ballast), 17 is a curved fluorescent pump, 18 is a glass bulb, 19 is an electrode, 21 is an amalgam, and 22 is an exhaust pipe. Figure 1, Figure 2, Figure 4, Figure 4, 0 (020 Kwahicho Chisoyu lke 1 verse (minutes)

Claims (2)

[Claims] (1) Connect the envelope equipped with means for connecting to an AC power source to the first one with a partition plate. It is divided into a second space, and the lighting means for the curved tube fluorescent lamp is housed in the first space, and the curved tube fluorescent lamp is housed in the second space. In the curved fluorescent lamp, an amalgam having a mercury concentration that does not have a function of controlling mercury vapor pressure in the discharge space during steady operation is disposed near the electrodes of the curved fluorescent lamp. In the initial stage of lighting, mercury is quickly supplied from the amalgam to the discharge space, and during steady lighting, the part of the curved fluorescent lamp extending into the first space is used as the coldest part to control the mercury vapor pressure in the discharge space. A fluorescent lamp device characterized in that: (2) Part of the curved fluorescent lamp is passed through the partition plate and
2. The fluorescent lamp device according to claim 1, wherein the fluorescent lamp device extends into the first space and has a ventilation hole formed in the envelope corresponding to the first space.