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INVENTION
Patent of the Russian Federation RU2247896
LIGHTING DEVICE WITH BUILT-IN THERMOELECTRIC BATTERY
The name of the inventor: Ismailov Т.А. (RU); Evdulov O.V. (RU); Aminov G.I. (RU); Yusufov Sh.A. (RU)
The name of the patent holder: Dagestan State Technical University (RU)
Address for correspondence: 367015, Makhachkala, pr-kt Imam Shamilya, 70, DSTU, Department of Intellectual Property
The effective date of the patent: 2003.03.31
The invention relates to lighting devices with an integrated power source. The device contains an incandescent lamp and a thermoelectric battery, on the cold junction of which is a container with water. The device is characterized in that a container with a salt with a low cryohydrate dissolution temperature is installed above the water tank, made with the possibility of periodically filling the salt in a container with water. The technical result of the invention is to increase the temperature difference between junctions. 1 yl.
DESCRIPTION OF THE INVENTION
The invention relates to instrumentation, in particular to lighting devices.
In remote, remote areas, where obtaining electrical energy is difficult, the issue of lighting household premises is topical. This issue is solved by using different types of combustible substances (for example, in the form of candles, beams, kerosene lamps, etc.), as well as electric lighting devices working on various types of electric energy batteries. A disadvantage of these methods is their low efficiency, short duration, and when using combustible substances, in addition, the negative impact on humans and the environment.
A thermoelectric power generator is known [1], which could be used to power a lighting device. A thermoelectric generator of electrical energy is a power supply unit consisting of a thermal energy source brought into thermal contact with the first junction of a thermoelectric battery, current conducting circuits and a radiator cooling the second junctions of a thermoelectric battery. Due to the temperature difference between the junctions of the thermoelectric battery, a potential difference appears at its contacts. When connecting to the terminals of a thermoelectric battery load through it flows electrical current. The load is supplied by electrical energy. As sources of thermal energy in a thermoelectric generator, nuclear reactors, heat sources with radioactive isotopes, chemical combustion reactions or thermal energy emitted by the Sun are used.
The disadvantage of a thermoelectric generator is the mandatory availability of a source of thermal energy.
A lighting device [2] is known, comprising an incandescent lamp and a power supply device made in the form of a thermoelectric battery, on the first junction of which there is a container with evaporating liquid, and on the second junction there is a metal radiator, which is a flat plate with a frieze in the form of a truncated cone, The incandescent lamp is placed in a space bounded by a plafond and connected to a thermoelectric battery by means of electric wires.
The disadvantage of the lighting device is the insufficient level of cooling of the first junction of the thermoelectric battery, which results in a slight temperature drop between its junctions and, correspondingly, a small amount of generated electricity supplying the incandescent lamp.
The object of the invention is to increase the temperature difference between the junctions of a thermoelectric battery intended for supplying an electric power to an incandescent lamp and, accordingly, the power of a lighting device.
This goal is achieved by using the design of the lighting device shown in the drawing.
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The lighting device contains a thermoelectric battery 1, on the first junction of which there is a container 2 with water 3, and on the second junction there is a metallic radiator 4, which is a flat plate with a plafone in the form of a truncated cone. The incandescent lamp 5 is placed in a space bounded by the bubble and is connected to the thermoelectric battery 1 by means of electrical wires 6. Above the container 2 with water 3, with the fasteners 7, a container 8 is filled with a powdery salt 9 having a low cryopresolutionary dissolution temperature (as a similar salt can Ammonium nitrate should be used). The container 8 with a powdery salt 9 having a low cryopreservate dissolution temperature is provided with a metering device 10 periodically filling in portions of the salt 9 after a certain period of time into a container 2 with water 3. The light fixture is fixed to the support 11. |
LIGHTING DEVICE WORKS AS FOLLOWING
The powdery salt loaded into the tank 8 having a low cryopreservative dissolution temperature 9 through portions of the dispenser 10 (the amount of portions is determined by the heat engineering calculation by the developers and set by the dispenser 10) is spilled into the container 2 with water 3. When the salt 9 is dissolved, As a result of the reaction of the solution, which accordingly reduces the temperature of the first junction of the thermoelectric battery 1 (for example, when ammonium nitrate is used which has a cryohydrate dissolution temperature of -17.35 ° C, it is possible to lower the temperature to -5 to -10 ° C). The resulting temperature difference between the junctions of the thermoelectric battery 1 causes the appearance of a potential difference between its terminals. In this case, through an electric current 6 connected in series to the thermoelectric battery 1 by means of electric wires 6, an electric current passes through the incandescent lamp 5, which causes it to glow. The metal radiator 4 serves to increase the temperature of the second junction of the thermoelectric battery 1 due to the heat generated by the incandescent lamp. To maintain the temperature of the first junction of the thermoelectric battery 1 for a long time at the required level, the backfill of the salt 9 is produced periodically by portions through the metering device 10. In this case, the duration of the operation of the lighting device is limited by the amount of salt 9 in the container 8.
LITERATURE
1. Anatychuk L.I. Thermoelements and thermoelectric devices: Handbook. Kiev: Science. Dumka, 1979. - 768 p.
2. Patent of the Russian Federation No. 2199696 Lighting device / Ismailov TA, Evdulov OV, Aminov GI, Yusufov Sh.A.), publ. 27.02.2003, Bul. №6.
CLAIM
A lighting device comprising an incandescent lamp and a power supply device made in the form of a thermoelectric battery, on the first junction of which a water tank is located, and on the second junction there is a metal radiator that is a flat plate with a truncated cone, where the incandescent lamp is placed in a space , Which is limited by the bubble and is connected to a thermoelectric battery by means of electric wires, characterized in that a container filled with a powdery salt having a low cryogenic hydration temperature is installed above the water tank with the aid of fasteners, the container with the powdered salt being provided with a metering device that periodically replenishes portions Salt in a container of water after a certain period of time.
print version
Date of publication 13.01.2007gg
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