364 results about "Thermoelectric converter" patented technology

A thermoelectric converter comprises a thermoelectric element assembly that includes a plurality of P-type thermoelectric elements and a plurality of N-type thermoelectric elements which are arranged in a predetermined arrangement pattern; and a heat-exchange element assembly provided with a plurality of heat exchange elements and a retaining plate retaining the plurality of the heat exchange elements, the plurality of the heat exchange elements being retained in a predetermined arrangement condition corresponding to a arrangement condition of the thermoelectric elements. Then, a plurality of joining sites between the thermoelectric element assembly and the heat-exchange element assembly are all together joined by joining members in a state in which the thermoelectric element assembly and the heat-exchange element assembly are stacked on each other.

The invention discloses a LED illuminating device capable of heat recovery, comprising an LED flat panel light source, a heat-dissipation device and a thermoelectricity conversion device; the heat-dissipation device comprises a closed box-shaped inner base plate, a heat pipe radiator and a cooling fan which is positioned above the heat pipe radiator; the backside of the LED flat panel light source is closely attached on lower surface of the inner base plate and the heat pipe radiator is closely attached on upper surface of the inner base plate; the thermoelectricity conversion device comprises a plurality of outer base plates which are arranged around the outside of the inner base plate and heat dissipation fins are arranged on outer lateral surfaces of each outer base plate; sheet-type thermoelectricity converters are arranged between inner lateral side of each outer base plate and outer lateral side of each inner base plate, the side where the thermoelectricity converter is closely attached on the outside is heat end and the side where the thermoelectricity converter is closely attached on the inner side is cold end; the heat end and cold end of each thermoelectricity converter are series-connected, parallel-connected or series-parallel connected and then are connected via output wires with an energy-storage conversion unit arranged at one side of a radiator; the energy storage conversion unit can distribute electric energy to LED flat panel light source for auxiliary lightening and can drive the operation of cooling fan.

A computer enclosure includes an absorber plate, a thermoelectric converter, and a refrigerator. The absorber plate is arranged in the computer enclosure to absorb heat generated in the computer enclosure. The thermoelectric converter is arranged in the computer enclosure to receive heat absorbed by the absorber plate, and then convert the absorbed heat to electrical energy. The refrigerator is arranged in the computer enclosure to receive the electrical energy generated by the thermoelectric converter, and then work to generate cold air to dissipating heat in the computer enclosure.

An energy recovery system for hybrid automobile. The energy recovery system generates electricity by utilizing the temperature difference between a high temperature thermal medium and a low temperature thermal medium. As the high temperature thermal medium, engine coolant for cooling an engine is used. As the low temperature thermal medium, pump refrigerant for cooling by a heat pump is used. The heat pump maintains the pump refrigerant at a low temperature by using heat from the engine coolant. Therefore, while electricity is reliably generated at a thermoelectric converter, energy is efficiently used for cooling the pump refrigerant.

The present invention relates to an exhaust manifold (15) for an exhaust system (5) of a combustion engine (1), in particular of a motor vehicle, with an exhaust channel (16) for conducting exhaust gas, which comprises an inlet side (17) that can be connected to the combustion engine (1) and an outlet side (19) that can be connected to the exhaust system (5), and with at least one coolant channel (20) for conducting coolant, which is arranged on the outside of the exhaust channel (16) and can be connected to a cooling circuit (6).In order to reduce the thermal load on the exhaust manifold (15), at least one thermoelectric converter (22) can be provided, which on the one hand is coupled to the exhaust channel (16) and on the other hand to the coolant channel (20) in a heat-transferring manner.

A heat-dissipating module suitable for dissipating heat for a heat-generating element is provided. The heat-dissipating module includes a heat-dissipating base, a cooling fan having a case and a blades assembly disposed in the case, a heat pipe and a thermoelectric converter. The heat-dissipating base is disposed on the heat-generating element, and the case has an air inlet and an air outlet. The heat pipe is connected between the heat-dissipating base and the cooling fan, and the heat pipe has a first end connected to the heat-dissipating base and a second end disposed in the case adjacent to the air outlet. The thermoelectric converter is disposed on the second end, and the thermoelectric converter is suitable for converting a temperature difference between the second end and an environment near the air outlet into output electrical energy.

The invention relates to a thermoelectric generator which comprises a heat collector and a thermoelectric converter, wherein the heat collector comprises at least one heat absorption structure; the thermoelectric converter is arranged opposite to the heat absorption structure of the heat collector; the heat absorption structure of the heat collector absorbs heat and transfers the absorbed heat tothe thermoelectric converter; and the heat absorption structure comprises at least one carbon nano tube structure. The thermoelectric generator adopts the carbon nano tube structure as the heat absorption structure, and can enhance the energy absorption efficiency of the heat collector by utilizing the favorable endothermic character of the carbon nano tube structure, thereby obviously enhancing the thermoelectric conversion efficiency of the thermoelectric generator as compared with the prior art.

A process for purifying a P(VDF-TrFE) copolymer to produce an improved high performance copolymer for pyroelectric conversion. Pellets of a P(VDF-TrFE) copolymer are dissolved in a solvent to form a solution. Subsequently, anhydrous ethanol is added to the solution to initiate copolymer gel precipitation, after which the solution is separated to obtain the gel precipitate, which is subsequently washed and dried. The resulting copolymer has fewer impurities and higher resistivity, thereby being suitable for use in applications such as pyroelectric converters. The purified copolymer also exhibits phase transition characteristics that allow for increased power output.

An electrolyte structure that is useful in battery cells having liquid electrodes and solid electrolyte and in alkali-metal thermoelectric converters is made by applying a dense film of a solid alkali-metal ion conductor on a thick porous metal support.

The invention discloses a structure of a film thermoelectric converter based on a micro bridge resonator and a fabricating method thereof. The film thermoelectric converter mainly comprises a heating resistor (1), the micro bridge resonator (2) and a sealing ring (3). Heat of the heating resistor 1 after the temperature rises leads the temperature of the micro bridge resonator (2) to rise through ways of convection, radiation, or heat exchange and the like. Because the heat expansion coefficients of materials made into the micro bridge resonator (2) are different, the axial crushing stress of the heated micro bridge resonator increases or pulling stress reduces, the resonance frequency is lowered, and the temperature information of the heating resistor (1) can be reflected through measuring the change of the resonance frequency. The film thermoelectric converter based on the micro bridge resonator (2) has high sensitivity of measuring the heating resistor (1) by using the micro bridge resonator (2), little heat of conducting to an underlayer through the micro bridge resonator (2), and small error of converting alternative current into direct current; meanwhile, the heating resistor (1) can be flexibly designed.

A solid-state infrared imager comprises a matrix array of infrared sensing pixels which are formed as an imaging area on a semiconductor substrate and each of which contains a pn-junction thermoelectric converter element to sense incident infrared radiation, row selection lines each connected to the pixels of a corresponding row, signal lines each connected to the pixels of a corresponding column, a row selection circuit which selects and drives one of the row selection lines, and a signal readout circuit which reads out signal currents output to the signal lines from the pixels corresponding to the row selection line driven by the row selection circuit. Particularly, the signal readout circuit includes a signal line potential stabilizer which stabilizes the potential of the signal line to a constant level, and a current-voltage converter which converts the signal current flowing in a signal line to a signal voltage.

The invention discloses a thin film type thermoelectric converter and a measuring method, relating to the electricity metrology technology. The thin film type thermoelectric converter comprises an SiO2-Si3N4-SiO2 three-layer thin film sandwich structure taking a silicon chip as substrate and growing on the substrate by the method of low pressure chemical vapor phase epitaxy, thermocouples, heaters and a contact electrode; wherein, two heaters are arranged on both sides of a thermocouple side by side. In the converter of the invention, when measuring, alternating current and direct current respectively flow through the two heaters at the same time; temperature difference caused by AC and DC power is output on the thermocouples and AC power and DC power are directly compared to ensure that the changes of the ambient temperature and temperature gradient have greatly reduced effects on the measuring results.