JPH0387524A - Fireplace with 1/f fluctuation - Google Patents

Abstract

PURPOSE:To ensure that a heater such as a gas heater appears wavering similarly to a natural flame to make people feel comfortable as well as warm, by disposing an incandescent lamp for lighting, which is covered by ground glass on the face side, at an upper position on the front side of a burner, and forming a power supply for the lamp by superimposing a DC bias voltage on a 1/f fluctuation voltage. CONSTITUTION:A burner, e.g. a gas burner 3 is placed on the lower side in a firebox 5, and a plurality of incandescent lamps 2 are placed on the room side, with a partition wall 10 between the burner 3 and the lamps 2 and with a sheet of ground glass 11 disposed at an upper position on the front side of the lamps 2. A DC voltage is applied between both ends of solid carbon 14, and a minute fluctuating current with 1/f spectrum generated at the ends of the solid carbon 14 is passed through a capacitor 16 to extract the fluctuation as a 1/f fluctuation voltage 17. A power supply 19 for each of the lamps 2 is produced by superimposing the 1/f fluctuation voltage to a DC bias voltage. The lamps 2 are supplied individually with the 1/f fluctuation voltages, to show variations in illuminance, thereby producing an effect similar to a wavering flame of burning firewood, so that the people in the vicinity of the fireplace can peel comfortable and warm.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a 1/f fluctuation fireplace in which the flame inside the furnace can be seen in a 1/f fluctuation state.

[Conventional technology]

Fireplaces have been widely used not only in cold regions and high-class homes, but also in general houses such as villas in recent years. Traditionally, firewood was mainly used as fuel for fireplaces, but due to problems such as smoke pollution, its use is becoming less common. The main function of a fireplace is to keep the room moderately warm, but since people sit around the fireplace to read books and enjoy conversations, it is important that the flames give people a sense of comfort and warmth. It is desirable that the

[Problem to be solved by the invention]

When firewood is used as fuel, a natural flame is generated within the fireplace. Natural flames generally have a flickering effect and provide warmth to people.

The inventor of this application, Toshimitsu Musha, published the Journal of the Applied Physics Society, April 1965.
He has published papers on ``Biological Information and 1/f Fluctuations'' from pages 27 to 435 in the Journal of the Japan Society of Precision Machinery.

1984, Vol. 50, No. 6, “Biological control and 1/f fluctuation”
has published papers. The gist of the paper is that ``1/f fluctuation is a fluctuation that gives people a comfortable feeling;
The reason why fluctuations give a sense of comfort is that the fundamental rhythmic fluctuations of the human body have a 1/f spectrum. Another way to look at this is that humans get tired of receiving the same stimulation over and over again, and conversely, stimulation that changes too rapidly can be unpleasant, and it is important to have a fluctuation that appropriately combines both of these. 1/f fluctuation.''

The problem to be achieved by the present invention is the main point of the above paper, “1/
f-fluctuation gives humans a comfortable feeling. This knowledge was applied to fireplaces.

In other words, even in a fireplace where a combustion flame that does not fluctuate like a natural flame, such as the combustion flame of a gas burner, is generated, the people around the fireplace can feel the fluctuation and feel comfort and warmth. /f It is an object of the present invention to provide a fluctuating fireplace.

[Means to solve the problem]

In order to achieve the above object, the present invention disposes a combustion device in the lower part of the furnace, and arranges an incandescent light bulb for illumination whose surface side is shielded with frosted glass in the upper part of the front side of the combustion device. The power source for the incandescent light bulb is 1/2, which is generated by applying a DC voltage across the solid carbon.
It is constructed by superimposing a DC bias voltage on the f fluctuation voltage.

[Effect]

Combustion devices such as gas burners produce a constant flame.

The flame converts combustion energy into radiant energy through the skeleton, heating the room, and emitting carbon dioxide and other gases from the chimney.

On the other hand, an incandescent light bulb connected to the 1/f fluctuation generation circuit and installed in the upper part of the furnace emits light whose illuminance changes with 1/f fluctuation. This light appears to people looking from inside the room through the frosted glass as if a 1/f fluctuation flame is being generated inside the furnace, giving people comfort and warmth.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a longitudinal sectional view showing the inside of the fireplace 6, and FIG. 2 is a front view of FIG. 1.

The fireplace 6 has a furnace interior 5 surrounded by heat-resistant bricks 7 and a chimney 8 communicating therewith, surrounded by concrete 9 etc., and the front side is open.

On the lower side of the furnace interior 5, a gas burner 3, which is an example of the combustion equipment, is arranged with a large number of flame ports 3a, 3a, . As shown, a plurality of incandescent light bulbs 2 are placed through a partition wall 10 in an upper part of the indoor side of a gas burner 3, and the surface side is covered with frosted glass 1.
1, and a light reflecting plate 12 is provided on the back side. Directly above the gas burner 3 is a rectangular cylindrical skeleton 20 that has the function of converting gas combustion energy into radiant energy, and a radiant energy reflector 13a is mounted on the partition wall 10.
has been fixed through. The gas burner 3 is connected to a combustion source 4 installed outside the fireplace 6. The plurality of incandescent light bulbs 2 are each connected to a separate 1/f fluctuation generating circuit 1, which will be described later.

The front of the fireplace 6 is open as described above, and from the lower side to the upper side there is a frosted glass 11 having a suitably wide area.
will be erected. A reflective plate 13b is provided in the gap between the frosted glass 11 and the upper side of the front opening of the fireplace 6 to cover the gap and reflect the radiant energy from the skeleton 20 into the room. - The frosted glass 11 is made of an opaque material with a degree of abrasion that allows the plurality of incandescent light bulbs 2 to be seen visually. The structure of the skeleton 20 will be described in detail. As shown in FIG. 3, the skeleton 20 is a known one, and is a cylinder with a rectangular cross section, and this cylinder has transparent parts like a mesh of performance. 20a and a non-transparent part 20b, and as shown in FIG.
A diagonal protrusion 20c projects from the non-light-transmitting portion 20b on the inside of the 0. The skeleton 20 has the above structure,
The flame emitted from the flame ports 3a, 3a...3a of the gas burner 3 rises inside the rectangular skeleton 20, heats the skeleton 20 via the protrusion 20C, and the combustion energy is converted to radiant energy, which causes the flame to emit light from the reflection plate 13a. is reflected and heats the room. In addition, the indoor heating means using a gas burner is
The present invention is not limited to the embodiment described above, and a known method may be used in which a skeleton is used for the gas burner and the room is heated by infrared rays.

Next, the 1/f fluctuation generating circuit will be explained with reference to FIG.

There are various ways to generate 1/f fluctuation, but
In this embodiment, the following explanation is adopted.

When a DC voltage from a DC power supply 15 is applied to both ends of the solid carbon 14, minute current fluctuations having a 1/f spectrum are generated at both ends of the solid carbon 14. A 1/f fluctuation voltage 1 is generated from this fluctuation current through a capacitor 16.
Extract as 7.

Since this 1/f fluctuation voltage 17 is a low voltage, it is power amplified by an amplifier 18. As a result of the above, the l/f fluctuation generating circuit l
An amplified 1/f fluctuation voltage is emitted from the. The incandescent light bulb lighting power supply 19 is a power supply configured by superimposing the 1/f fluctuation voltage that is the output signal of the amplifier 18 and the DC bias voltage necessary to light the incandescent light bulb 2,
Known means for appropriately adjusting the amplitude of the 1/f current fluctuation and the value of the DC bias is added.

The plurality of incandescent light bulbs 2 are individually supplied with a 1/f fluctuation voltage, so that the individual incandescent light bulbs have a 1/f fluctuation voltage.
Light that changes in illuminance due to fluctuations will be emitted.

As shown in FIG. 1, a combustion flame is generated from the gas burner 3 with a constant rising speed as shown by the arrow A, but an incandescent light bulb 2 in the vicinity emits light with fluctuations of <1/f as shown by the arrow B. When this is viewed from the room side of the frosted glass 11, the combustion flame itself generated from the gas burner 3 appears to be changing with 1/f fluctuation. This fact has been proven by experiment.

As a result of the above, the people around the fireplace can feel the combustion flame burning in the hearth 5 in the same way as the fluctuation of the flame when burning firewood, and can feel comfort and warmth.

Although the gas burner 3 is used as the combustion appliance in this embodiment, it goes without saying that propane gas or the like may be used in addition to city gas. Furthermore, the 1/f fluctuation generating circuit 1 connected to the incandescent light bulb 2 is not limited to the one in this example, but may include a ROM storing a numerical string with 1/f fluctuation and a digital/analog converter. A device having an amplifier or the like may also be used.

Incidentally, even if the frosted glass 11 closes a part of the front opening of the fireplace 6, the above-mentioned cavity remains above the front side, and the interior of the room is kept sufficiently warm.

〔Effect of the invention〕

According to the present invention, the combustion flame in the furnace is visually observed as changing in a 1/f fluctuation state under the influence of light passing through the frosted glass of an incandescent lamp whose illumination changes with a 1/f fluctuation. For this reason, gas-based heating equipment can provide people with the same comfort and warmth as natural flames.

[Brief explanation of drawings]

Figure 1 is a vertical sectional view showing the internal structure of the fireplace, Figure 2 is a front view of Figure 1, and Figure 3 is the arrow shown in Figure 1.
FIG. 4 is a plan view of the skeleton, and FIG. 5 is a configuration diagram of the 1/f fluctuation generating circuit of the embodiment. 1...1/f fluctuation generating circuit 2...Incandescent light bulb 3...Gas burner 4...
・Combustion source 5... Furnace 6... Fireplace
11... Frosted glass 12... Shielding member
14...Solid carbon 15...DC power supply
17...1/f fluctuation voltage 18...Amplifier 19...Incandescent light bulb lighting power source 20...Skeleton

Claims (1)

[Claims] A fireplace comprising a combustion device disposed in a lower part of the furnace, and an incandescent light bulb for illumination whose surface side is shielded with frosted glass arranged above the front side of the combustion device, the power source of the incandescent bulb being A 1/f fluctuation fireplace characterized in that a DC bias voltage is superimposed on a 1/f fluctuation voltage generated by applying a DC voltage to both ends of solid carbon.