JPS593828B2 - fluorescent lamp device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compact fluorescent lamp device that can be used in place of an incandescent light bulb and can save power.

Fluorescent lamps have better light efficiency than regular incandescent light bulbs and can be used with low power consumption. Development of a device incorporating a light tube to achieve compatibility with general incandescent light bulbs is underway.

By the way, for full compatibility with incandescent bulbs,
It is not enough to simply provide a screw-in cap; it must be able to be used as is in currently used appliances such as reflectors for incandescent light bulbs and gloves.

Therefore, it is desirable that the size of this type of device be approximately the size of a ball-shaped light bulb with a bulb diameter of 95 m class, which is the most commonly used general-purpose light bulb at present.

However, in conventional fluorescent lamp devices of this type that have been put to practical use, the fluorescent lamps are configured in an annular shape, and in the devices described in literature and publications, the fluorescent lamps are U-shaped. It is composed into.

However, these fluorescent lamp devices have a large external shape, so if the size is to be reduced to the size of a ball-shaped light bulb with a diameter of 95 class 1, for example, in the case of a U-shaped lamp, the space must be less than that of a straight tube type 6W class lamp. However, as it was, the amount of light was insufficient for general lighting, and it was not put to practical use.

In the case of the U-shaped fluorescent lamp device, the reason why the amount of light was insufficient as described above is that the U-shaped fluorescent lamp was simply installed in the base.

In other words, by making the bulb U-shaped and integrating the ballast, lighting tube, etc. that are part of the device, the overall size of the device was considered to some extent; This is because the lamp was not long enough, and no consideration was given to the compatibility of the light lamp with the integrated ballast, lighting tube, wiring, etc.

In addition, it is known from Design Publication No. 437859 that the bulb is formed into a saddle shape in order to make the fluorescent lamp compact and to ensure a sufficiently long tube length. No consideration was given to the compatibility of lamps, lighting tubes, wiring, etc., and for this reason, they are insufficient in performance, such as light intensity, to replace incandescent light bulbs, and have not been put into practical use.

The compatibility of the ballast lamp with such ballasts, lighting tubes, wiring, etc. will be described below, taking as an example the straight tube type hanahikari lamp that is currently in practical use.

In other words, there are conventional thin tube type straight tube fluorescent lamps with a tube diameter of 15.5 mm, but among these thin tube type straight tube fluorescent lamps, the maximum wattage is 80 mm.
It was about W (pipe length was only 270 -).

The reason for this is that in the past, the ballast and lighting tube were separate units, and there were also variations in the characteristics of the ballast and lighting tube, wiring length,
In addition, the characteristics of the equipment to which the fluorescent lamp is attached, such as the positional relationship of the fluorescent lamp, are involved in a complex manner, and if the tube length of the fluorescent lamp is 270 mm or more, the fluorescent lamp may not start. be.

In other words, in order for the fluorescent lamp to start no matter what kind of equipment it is attached to, the tube length should be 270 mm in height.
was the limit, and the number of watts could only be 8W.

This also applies to the case where the aforementioned U-shaped or saddle-shaped fluorescent lamps are integrated, and the above-mentioned publication does not specify the optimal tube length and tube diameter for fluorescent lamps based on this situation. Ta.

In particular, when a fluorescent lamp is bent into a U-shape or a saddle shape, the brightness tends to be lower than that of a straight fluorescent lamp.

The reason for this is that light is reflected and absorbed by the bulb.

This invention was made based on the above circumstances, and the object is to provide a fluorescent lamp device that can be made as large as, for example, a 95m class ball-shaped light bulb, and that can provide a sufficient amount of light for general lighting. do.

That is, in order to achieve the above-mentioned object, when a fluorescent lamp is housed together with a ballast and a lighting tube in an envelope similar to, for example, a bow-shaped incandescent light bulb, the present invention provides a method for accommodating a fluorescent lamp, especially a ballast and a lighting tube. Focusing on the suitability of the Kanai Hikari lamp for various applications such as the
rIvrL or less, and the pipe diameter (inner diameter) is 14.5rr
It is characterized by being at least rrrL and less than 16.5 m.

The present invention will be described below based on an illustrated embodiment.

In the figure, 1 is a base, and one end side of this base 1 has an E2
A screw-in type base 2 such as a type 6 is integrally attached, and a fluorescent lamp 3 is fixed to the other end.

This lamp 3 has a globe 4 crowned on the other end side of the base 1.
The base 1 and the globe 4 constitute an envelope 8 roughly shaped like a ball light bulb.

The bulb 5 of the fluorescent lamp 3 is bent and formed as follows.

In other words, first of all, see Figure 4A. As shown in FIG. 4B, a straight pipe-shaped valve is bent into a substantially U-shape at its central portion 5a, and both ends separated by this U-shaped bent portion are shown in FIG. 4C. It is bent into a U-shape in a direction perpendicular to the plane including the U-shaped portion, so that the entire body is roughly saddle-shaped.

Discharge electrodes 6, 6 are attached to both ends of such a curved tube-shaped bulb 50.

A phosphor coating is formed on the inner wall surface of the bulb 5, and a predetermined amount of mercury and an inert gas are sealed inside the bulb 5.

Further, a stabilizer 7 is attached to the base 1, and this stabilizer 7
is arranged so as to be surrounded by the valve 5.

Furthermore, a lighting tube 9 is mounted within the base 1, and therefore the fluorescent lamp 3 is housed integrally with the ballast 7 and the lighting tube 9 in the envelope 8.

Incidentally, the electrodes 6, 6 are of course connected to the base 2 via the ballast 7.

Therefore, the valve 5 has a pipe length of 300 mm or more and 350 TML or less, and a pipe diameter (inner diameter) for the reasons described below.
is defined as 14.5 frrIn or more and less than 16.5 m.

That is, in the present invention, the bulb 5 is curved into a saddle shape in order to obtain a sufficient amount of light as a fluorescent lamp for general lighting, and to be compact and compact, and the length of the bulb 5 is varied. As a result of consideration, 3
It is specified within the range of 00 to 350.

When the tube length was defined in this manner, the lamp characteristics were evaluated by varying the tube diameter, and the following relationship was found.

First of all, the pipe length of valve 5 is 300trrm and 35
When the starting voltage was examined with various tube diameters of the valve 5 in each case where the temperature was set to 0 rran, the results shown in FIG. 5 were obtained.

As is clear from FIG. 5, even in the saddle-shaped valve 5 according to the present invention, the longer the pipe length or the smaller the pipe diameter, the higher the start voltage is recognized, and therefore the start voltage is higher than that specified by JIS. In order to ensure starting even when the power supply voltage drops to 94V, the starting voltage of the fluorescent lamp 3 must be kept below 94V in terms of power supply voltage.

In this regard, the pipe diameter of the valve 5 should be set to 14.5 m or more.
If it is less than 5mm, all lamps 3 whose tube length is within the range of 300m to 350mm have a starting voltage of 90 to 9.
The voltage is approximately 4V, and it is possible to sufficiently light the lamp with a general commercial power source.In this way, even when the pipe diameter is relatively small, such as 14.5 m or more and less than 16.5 mm, the required starting and lighting can be easily performed. Combined with the advantages of easy bending of the bulb 5 and ease of downsizing due to the small tube diameter, this is extremely significant in practice as a small fluorescent lamp with a special shape. becomes.

Second, in the saddle-shaped valve 5, the pipe length is 350rr.
If it is specified as an, the pipe diameter may be 14.0sn or 16.5
When the total luminous flux ratio was examined by varying the ratio within the range of less than m+y+, it was experimentally confirmed that the ratios were approximately the same within the range of tube diameters from 14.5 mm to less than 16.5 m.

Note that this tendency is true when the pipe length is increased from 300rran to 350rran.
The results were the same in all cases where the range of rvn was defined.

Thirdly, set the pipe length of the valve 5 to 300 to 35 mm.
Specify within the range of 0rrvn and set the pipe diameter to 14°.
It was confirmed that the lamp input can be set to about 8 to 15 W when the distance is less than 5 m to 16.5 m.

A lamp input of 8-15W is 30-60W for a general incandescent bulb.
Since this corresponds to a brightness of approximately W, the brightness is sufficient for general lighting.

Fourth, the pipe length of the valve 5 is defined as 350 mm, and in this case, the pipe diameter of the valve 5 is set to 14.0 mm to 16.0 mm.
When the luminous flux reduction rate of the lamp 3 was examined by changing the lamp within a range of less than 5 wr+, the results shown in FIG. 6 were obtained.

In other words, a general straight tube fluorescent lamp (with a bulb length of 3
50 rran, tube diameter 27.5 mm), the tube current is 300
? ? In the case of ZA, the luminous flux reduction rate after 100 hours is about 7 factors, as shown by the broken line in FIG. If it is within the range of 5 questions or less than 16.5 mm,
It is equivalent to a general fluorescent lamp (1), but is only slightly inferior, and can be said to be sufficiently usable for practical use.

Also, as is clear from the figure, the tube current is 280? ? Z
Even in the case of A, a sufficient amount of light can be obtained for general illumination, and it is preferable in terms of power saving, as well as having the advantage of being able to suppress the rate of decrease in luminous flux.

In addition, although the case where the pipe length is specified as 350mm is described above as an example, if the pipe length is 300van or 35mm,
It was confirmed that within the range of 0 screams, the tendency was similar to that of the husband.

According to such a fluorescent lamp device, the fluorescent lamp 3
Combined with the bent shape of the valve 5, it becomes compact,
Therefore, the envelope 8 can be easily constructed to have a size comparable to, for example, a 95rran class ball-shaped light bulb.

Therefore, it is fully compatible with incandescent bulbs and can be used by being attached to existing incandescent bulb lighting equipment as is.

Moreover, even though the fluorescent lamp 3 itself is made compact, it can provide a brightness equivalent to an incandescent light bulb of about 30 to 60 W, and can be sufficiently put to practical use as general lighting.

Further, the fluorescent lamp 3 is connected to a globe 4 which is a part of the envelope 8.
Since the fluorescent lamp 3 is covered with a
This globe 4 has the advantage of diffusing the light from the fluorescent lamp 3 and reducing uneven brightness.

As explained above, when a saddle-shaped fluorescent lamp is housed in an envelope together with a ballast and a lighting tube, the length of the curved tube-shaped bulb is 300 m or more and less than 350 rran, and the tube diameter is 14.5mm or more 16.5mm
Because it is specified to be less than This has the advantage that a sufficient amount of light can be obtained for general lighting.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view, Fig. 2 is a side view, Fig. 3 is a front view, Fig. 4 is an explanatory view showing the valve molding process in order, and Fig. 5. 6 is a characteristic diagram showing the starting voltage, and FIG. 6 is a characteristic diagram showing the luminous flux reduction rate. 3... Fluorescent lamp, 5... Bulb, 5a... Central part, 6... Electrode, 7... Ballast, 8... Envelope, 9... Lighting tube.

Claims (1)

[Claims] 1. A straight tube bulb with electrodes provided at both ends is bent into a substantially U-shape at its center, and both ends are bent into a substantially U-shape along a direction perpendicular to a plane containing the U-shape. A fluorescent lamp equipped with a curved tube shaped bulb is housed together with a ballast and a lighting tube in an envelope having a base, and the tube length of the bulb is 300 mm or more and 350 mm or less, and the tube diameter is A fluorescent lamp device characterized in that the length is 14.5 mm or more and less than 16.5 myyn.