JPH0521260Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The invention is a lamp device that uses a tube-shaped incandescent light bulb and is used as a light source for lighting, a heater for copying machines, a heater for space heaters, etc. Regarding.

(Prior art) Tube-type incandescent light bulbs are used as light sources for lighting, heaters for copying machines, heaters for heating equipment, etc. Among tube-type incandescent bulbs, halogen bulbs are suitable for light sources for lighting, and Infrared light bulbs are suitable for appliance heaters, etc.

By the way, in order to increase the brightness of lighting and the amount of heat generated as a heater, it is possible to manufacture large, high-output lamps, but there is a limit to the size of lamps that can be manufactured, and the installation space is limited. The size is restricted by For this reason, a plurality of relatively small lamps may be used.

Conventionally, a lamp device has been proposed in which a plurality of tube-shaped incandescent bulbs are housed in a single outer bulb so as to be parallel to each other, and these tube-shaped incandescent bulbs are connected in series.

(Problem to be solved by the invention) However, in the conventional lamp device as described above, a plurality of tube-shaped incandescent light bulbs are housed in parallel to each other within the outer bulb. The diameter of the lamp becomes larger, the lamp device becomes larger, and the installation space becomes larger.

In addition, it is necessary to maintain a vacuum inside the outer bulb, which requires manufacturing effort such as evacuation, and quartz glass must be used as the outer bulb.
Becomes expensive.

Furthermore, since multiple tube-shaped incandescent bulbs are connected in series, all of the tube-shaped incandescent bulbs are lit during use, making it impossible to use only some of the tube-shaped incandescent bulbs, making it easier to use. There are some problems such as restrictions on

The present invention aims to provide a lamp device which has a simple structure, is small in size, is not only inexpensive, but also has increased usability.

[Structure of the invention] (Means for solving the problems) The present invention provides a plurality of fitting recesses in the base, and the pinch seal parts of a plurality of tube-shaped incandescent light bulbs having pinch seal parts at both ends. A feature is that the plurality of tubular incandescent light bulbs are connected in parallel by being accommodated and fixed in the fitting recess of the cap.

(Function) According to the present invention, multiple tube-type incandescent light bulbs can be connected and attached in parallel to one or two bases, and the outer diameter can be reduced without requiring a special outer tube bulb. Therefore, the lamp device can be made smaller, and the installation space can be reduced. In addition, multiple tube-type incandescent light bulbs increase the degree of freedom in electrical connection, making it possible to light up parts of the bulb, making it more convenient to use.

(Example) The present invention will be described below based on an example shown in the drawings.

In the figure, 1a and 1b are tube-type incandescent light bulbs,
These tube-type incandescent light bulbs 1a and 1b have long filaments 3a and 3b housed inside straight tube-type bulbs 2a and 2b made of quartz glass, respectively.

Filaments 3a and 3b are support rings 4a
..., 4b... hold the valves 2a, 2b so as to be located on their tube axes.

Pinch seal portions 5aa, 5ab, 5ba, 5bb are formed at both ends of the bulbs 2a, 2b, and metal foil conductors 6aa, 6ab, made of molybdenum or the like are formed in the pinch seal portions 5aa, 5ab, 5ba, 5bb.
6ba and 6bb are sealed. Both ends of the filaments 3a and 3b are connected to these metal foil conductors 6aa,
Connected to 6ab, 6ba, and 6bb.

External lead wires 7aa, 7ab, 7ba, 7bb are connected to the metal foil conductors 6aa, 6ab, 6ba, 6bb.

On the other hand, 10a and 10b are bases, which are made of an electrical insulator such as synthetic resin. These caps 10a and 10b have two fitting recesses 11aa and 11ab, respectively, as one is shown in FIG.
11ba and 11bb are provided.

These fitting recesses 11aa, 11ab, 11ba, 1
1bb are the above-mentioned tube-type incandescent bulbs 1a, 1, respectively.
The pinch seal portions 5aa, 5ab, 5ba, and 5bb of b are fitted. Therefore, the two tube-shaped incandescent light bulbs 1a and 1b have caps 10 at both ends.
a, 10b are arranged parallel to each other,
Adjacent straight pipe valves 2a and 2b are assembled in contact with or close to each other.

The pinch seal portions 5aa, 5ab, 5ba, 5bb of the tube type incandescent lamps 1a, 1b are connected to the bases 10a, 10.
Fitting recesses 11aa, 11ab, 11ba, 11bb of b
After being inserted into the base 1, a heat-resistant adhesive 12 is applied to the base 1.
0a and 10b.

Two power cords 13 are attached to one base 10a.
a, 13b are connected, and these power cords 13a, 13b are connected to external lead wires 7aa, 7ba, respectively, within the base 10a.

One power cord 13c is attached to the other base 10b.
This power cord 13c is connected to two external lead wires 7ab and 7bb within the base 10b.

The operation of an embodiment of such a configuration will be explained.

Power cords 13a, 13b to one polarity of the power supply
and connect the power cord 13 to the other polarity.
When c is connected, two tube-shaped incandescent bulbs 1a, 1b
lights up at the same time.

Therefore, if you want high brightness as a light source or a large amount of heat as a heater, use two tube-shaped incandescent bulbs 1 as shown above.
a and 1b are lit at the same time. Especially when you want to start up quickly, such as immediately after starting use, 2.
It may be desirable to simultaneously light up the two tube-shaped incandescent bulbs 1a and 1b.

Also, the power cord 13a is connected to one polarity of the power source, and the power cord 13c is connected to the other polarity.
When connected, only one of the two tube-shaped incandescent bulbs 1a and 1b lights up. Therefore, if the output is too high when the two tube-shaped incandescent bulbs 1a and 1b are turned on at the same time, energy saving can be achieved by lighting only one tube-shaped incandescent bulb 1a.

In this way, the usage condition can be selected as needed, making it more convenient to use.

The lamp device having the above configuration has a base 10.
Two tube-shaped incandescent light bulbs 1a and 1b between a and 10b
Since these are connected and held parallel to each other, there is no need for an outer bulb to house them, and there is no need to create a vacuum inside the outer bulb. It is cheaper because it does not need to be used.

Especially since there is no need to use an outer tube valve,
The outer diameter can be reduced, the size can be reduced, and the structure can be simplified.

In addition, in the above embodiment, a pair of left and right caps 10
Two tube-shaped incandescent light bulbs 1a and 1b between a and 10b
are held connected parallel to each other, but two tube-shaped incandescent bulbs 1 are attached to one base 10a or 10b.
a and 1b may be held in parallel with each other.

[Effects of the invention] As explained above, according to the invention, a plurality of tube-shaped incandescent light bulbs can be connected and attached in parallel to one or two bases, and a special outer tube bulb is not required. First, the outer diameter can be reduced, the lamp device can be made smaller and simpler, and the installation space can be reduced. In addition, multiple tube-type incandescent light bulbs have an increased degree of freedom in electrical connection, making it possible to turn on parts of the bulb, which has the effect of expanding usability.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with FIG. 1 being a side view of the lamp device, and FIG. 2 being a perspective view of the base. 1a, 1b...Tubular incandescent light bulb, 2a, 2b...
Straight pipe valve, 3a, 3b...filament, 5
aa, 5ab, 5ba, 5bb...pinch seal part, 1
0a, 10b...cap, 11aa, 11ab, 11
ba, 11bb...Fitting recess, 12...Adhesive, 1
3a, 13b, 13c...Power cord.

Claims (1)

[Scope of utility model registration request] A lamp device characterized in that a plurality of tubular incandescent light bulbs having pinch seal portions at both ends are provided with a plurality of fitting recesses in a base, and the pinch seal portions of the plurality of tubular incandescent light bulbs are received and fixed in the fitting recesses in the base, thereby connecting the plurality of tubular incandescent light bulbs in parallel.