366 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.

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.

A thermal plasma generator may be used in conjunction with at least one thermal to electric converter, such as a solid state thermal to electric energy to electric converter. A micropipe heat pump extracts heat from the at least one thermal to electric energy device, which in turn may convert the heat into electrical power. The power generation system may be disposed within a vehicle, and provide electrical power for propelling the vehicle.

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.

The invention discloses a structure of a film thermoelectric converter based on a bi-material microcantilevel and a fabricating method thereof. The film thermoelectric converter mainly comprises a heating resistor 1, the bi-material microcantilevel 2 and a sealing ring 3. The principle of the bi-material microcantilevel measuring the temperature of the heating resistor 1 is similar to the principle of the traditional bi-metal temperature sensor, and heat of the heating resistor 1 after the temperature rises leads the temperature of the bi-material microcantilevel 2 to rise through ways of convection, radiation, or heat exchange and the like. Because heat expansion coefficients of two materials made into the bi-material microcantilevel 2 are different, the deflexion at the free end or the strain at the root part of the bi-material microcantilevel 2 is changed, and the temperature information of the heating resistor 1 can be obtained after the shape change of the bi-material microcantilevel 2 is detected by a detection element 9. The film thermoelectric converter based on the bi-material microcantilevel 2 has high sensitivity of measuring the heating resistor 1 by using the bi-material microcantilevel 2, little heat of transmitting to an underlayer through a bi-material microcantilevel temperature sensitive element, and small error of converting alternative current and direct current; meanwhile, the heating resistor can be flexibly designed.

The electronic component with heat transfer by boiling and condensation comprises heat exchange surfaces immersed in a heat conducting fluid constituted by the free ends of nanowires of a thermoelectric converter. An electrically insulating coating material with a low thermal conduction partially covers the nanowires above the heat conducting fluid. Each nanowire forms a thermocouple composed of two coaxial branches made from materials of different natures separated by a layer of electrically insulating material and electrically connected individually to the free end of the nanowire.

An electrical power supply device is for an endoscope having a scope for insertion into the body of a subject. The electrical power supply device includes a temperature controller and a thermoelectric converter. The thermoelectric converter controls the temperature of the interior of the scope. The thermoelectric converter generates electricity based on the difference in temperature between the body interior of the subject and the interior of the scope.

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.

This invention relates to a Pa-type CoSb3-base thermoelectric converting device including: a Mo-Cu alloy electrode at an end of high temperature, a welding layer of the high temperature end, a diffusion blocking layer, thermoelectric pins, a metal layer, a welding layer and an electrode of the low temperature end, in which, the thermoelectric pins are made of P or N-type CoSb3-base thermoelectric material and are connected with the Mo-Cu alloy electrode into one unit by the welding layer of the high temperature end to form a high temperature end, the low temperature end of the pins are connected with the electrode of its end by the metal layer and the welding layer of the low temperature end, which utilizes a SPS quick welding technology to realize heat match as much as possible and no obvious crack exists at the high temperature end.

A thermoelectric converter is disclosed which includes a body and an extension member. The body includes a plurality of dissimilar thermoelectric elements in an array. The body also includes a first substrate with a first electrically conductive pattern portion that is electrically connected to the plurality of dissimilar thermoelectric elements. Also, the body includes a second substrate with a second electrically conductive pattern portion that is electrically connected to the plurality of dissimilar thermoelectric elements. The extension member includes an extension pattern portion that is electrically connected to at least one of the first and second electrically conductive pattern portions. The extension member extends away from the body.

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 thermoelectric converter including plural thermoelectric conversion modules connected in series by having p-type semiconductors and n-type semiconductors alternately provided in through holes of a ceramic honeycomb, respectively. Ends of the p-type semiconductors are connected to ends of the n-type semiconductors on both sides of the through holes.

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.

An infrared sensor including a substrate, a plurality of infrared detection pixels arrayed on a substrate with each of the infrared detection pixels including an infrared absorption portion formed over the substrate and configured to absorb infrared radiation, a thermoelectric converter portion formed over the substrate and configured to convert a temperature change in the infrared absorption portion into an electrical signal, and support structures configured to support the thermoelectric converter portion and the infrared absorption portion over the substrate via a separation space, the support structures having conductive interconnect layers configured to deliver the electrical signal from the thermoelectric converter portion to the substrate. The infrared sensor further includes a pixel selection circuit configured to select at least one of the infrared detection pixels which delivers the electrical signal and an output circuit configured to output the electrical signal delivered from selected infrared detection pixels via the conductive interconnect layers. The conductive interconnect layers include a material the same as a material of gate layers of the MOS transistors, and have a thickness similar to the gate layers.

This invention discloses a method for generation with the waste heat of the engine vent-pipe and a device, in which, the device is a pipe, the pipe wall is the principle part of the converter, the middle is the channel of the pipe, the outer layer is set with a cooling end, the internal wall is set with heat absorption end, the current output terminals are connected with the both ends, the high temperature absorption end is put into the vent-pipe directly to absorb heat fully and the car and air are used to cool down the low temperature end of the converter to form a temperature difference by high temperature and natural air to finish the generation function.

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.

A computer includes a motherboard, a heat-generating device mounted on the motherboard, a heat-conducting device attached to the heat-generating device for absorbing heat energy generated from the heat-generating device, and a thermoelectric converter coupled to the heat-dissipating device for converting the heat energy into electric energy for recycling use. The heat-conducting device includes a heatpipe. The heatpipe contains a working fluid, which has nano-sized particles therein. The nano-sized particles may be composed of carbon and / or a metallic material. The computer may include a heat-conducting plate interposed between the heatpipe and the heat-generating device. The thermoelectric converter may include a circuit with two strips connected in series, the strips each being formed of a different kind of thermoelectric metal. Corresponding ends of the two strips would be coupled to the heat-conducting device so as to receive heat energy therefrom.

A thermoelectric converter comprises a thermoelectric element assembly (10) composed of an array of P-type thermoelectric elements (12) and N-type thermoelectric elements (13) in a predetermined array pattern and heat-exchange element assemblies (20, 30) composed of heat-exchange elements (22, 32) and holding boards (21, 31) holding heat-exchange elements (22, 32) so as to hold the heat-exchange elements (22, 32) in a predetermined array pattern corresponding to the array pattern of the thermoelectric elements (12, 13). After stacking the thermoelectric element assembly (10) and the heat-exchange element assemblies (20, 30), joint portions between the thermoelectric element assembly (10) and the heat-exchange element assemblies (20, 30) are jointed with a jointing member at a time.

The invention relates to a clearance type sealing Stirling thermoelectric converter supported by adopting plate springs. The clearance type sealing Stirling thermoelectric converter comprises a hot cylinder, a compression cylinder and a linear alternating current generator which are fixedly connected through a flange, wherein the interior of the hot cylinder is sequentially sleeved with a heat exchanger and an expansion cylinder towards the center, and an expansion piston is arranged in the expansion cylinder; the expansion piston is sleeved on an expansion piston rod; and an inner cavity of the expansion piston is provided with a plurality of groups of supporting flexible plate springs which are respectively sleeved on limit pipes on the inner wall of the expansion piston and the expansion piston rod for positioning so as to ensure that clearance sealing structures are radially formed between the expansion cylinder and the expansion piston and the expansion piston and the expansion piston rod. According to the clearance type sealing Stirling thermoelectric converter, the non-contact type clearance sealing structures are realized by adopting the flexible plate spring supporting systems, and meanwhile, the rigidity requirement of a generator active cell oscillation system can be met, so that the structural characteristic of no abrasion after long-term running of moving components is realized so as to guarantee the long service life and the high rigidity of the Stirling generator.

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 an engine residual heat power generation module which comprises a gas pipeline, a thermoelectric converter layer and a cooler layer, wherein an energy storage device layer is further arranged between the gas pipeline and the thermoelectric converter layer. The invention simultaneously discloses an engine residual heat power generation device, which at least comprises two stages of the engine residual heat power generation modules; and the gas pipelines, the thermoelectric converter layers and the cooler layers of the adjacent two stages of the engine residual heat power generation modules are communicated. The engine residual heat power generation module can absorb residual heat of exhaust gas and produce the temperature difference in the engine residual heat power generation module, and a thermoelectric converter can utilize the temperature difference for completing the power generation function. The use of the engine residual heat power generation module can improve the thermoelectric conversion efficiency of the thermoelectric converter, the use is convenient and the manufacture is simple.

The thermoelectric material is represented by the following composition formula of (Tia1Zrb1Hfc1)xAyB100-x-y, in which element A is at least one element selected from the group consisting of Ni and Co, element B is at least one element selected from the group consisting of Sn and Sb, 0<=a1<=1, 0<=b1<=1, 0<=c1<=1, and a1+b1+c1=1 hold, and 30<=x<=35 and 30<=y<=35 hold, and the thermoelectric material comprises a phase having an MgAgAs type crystal structure as a major phase. In this thermoelectric material, the density of the thermoelectric material is more than 99.0% of the true density. When this thermoelectric material is used for either one or both of p-type elements and n-type elements, a thermoelectric conversion device having high thermoelectric conversion performance is realized.

The present invention provides one micro space generation module with photoelectric converter, thermoelectric converter and plasma-to-electricity converter integrated together, and the module has deposited photoelectronic film and hot ion emitting film, semiconductor photoelectronic element and other micro cell module units. The micro space generation module can realize excellent stepped energy utilization and may be used in various fields, especially as the high efficiency and long life cell for micro space craft and other effective load after being provided with isotope fuel. It may be used in desert and other places with rich solar energy, and may be miniaturized for use in micro electromechanical system.

A thermoelectric converter including p-type semiconductors and n-type semiconductors alternately provided in corresponding first and second through holes, respectively, in a ceramic honeycomb. The first and second through holes have different cross-sectional shapes and are alternately arranged. The semiconductors have respective first and second ends thereof successively connected to different ones of the semiconductors on first and second sides, respectively, of the corresponding through holes.

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.

The invention discloses a temperature detecting fire alarm device made of thermoelectric materials, comprising a thermoelectric converter, a signal processing circuit and an alarm, wherein the thermoelectric converter is used for converting variation of the ambient temperature into voltage signals and outputting the voltage signals to the signal processing circuit; the signal processing circuit is used for filtering and comparing the received voltage signals and then driving the alarm to ring, thus realizing alarm on fire; and the alarm is used for sending out an acousto-optic signal to promote alarm. The thermoelectric converter adopts the structure of concatenated thermoelectric pairs. Each group of thermoelectric pairs 5 is equal to a small power supply and that the output voltage is obtained through repeated addition of the voltage of each small power supply can be known according to the power supply concatenation rule in the circuit, thus the fire alarm device is environmentally friendly, without needing transmission parts, and has small system volume and wide temperature application range.