275 results about "Thermoelectric element" patented technology

A refrigerator may include a main body forming a storeroom; a thermoelectric element including a heater and a cooler, the cooler configured to cool air inside the storeroom; a fan configured to operate to bring air from outside the main body to the heater to be heated by the heater and exhaust the heated air to outside the main body; a filter configured to filter foreign materials from the air brought from outside the main body to the heater by operation of the fan; and a controller configured to notify that the filter is clogged in response to a rotation speed of the fan being higher than a reference rotation speed.

A refrigerator including a main body; a storage room inside the main body; a thermoelectric module including a module plate including an element mounting portion, a heat dissipation sink on a first side of the module plate, a cooling sink on a second side of the module plate, and a thermoelectric element positioned in the element mounting portion such that a first surface of the thermoelectric element contacts the heat dissipation sink and a second surface of the thermoelectric element contacts the cooling sink; and a coupling member penetrating the module plate of the thermoelectric module to couple the thermoelectric module to an upper surface of the main body.

A refrigerator may include: a body, a storage compartment inside the body, a thermoelectric module on an upper portion of the storage compartment and including: a thermoelectric element including: a heating and a cooling portion, a dissipating and a cooling sink in contact with the heating and cooling portion, respectively; a heat dissipation (HD) fan configured to generate an airflow, a HD duct having an inlet and outlet, the HD duct on an upper surface of the body and configured to guide the airflow through the inlet to the dissipating sink to exchange heat with the dissipating sink, and then out the outlet; and a dust filter mountable on the inlet and configured so that, with the dust filter mounted on the inlet and the HD fan generating the airflow, the dust filter prevents foreign substances in the airflow from entering inside the HD duct through the air inlet.

The invention relates to the technical field of heat exchanger structures, in particular to a heat exchange assembly and an air treatment device. The device comprises a first heat conduction base body made of an aluminum profile, a second heat conduction base body made of an aluminum profile, a semiconductor thermoelectric element group, a first phase change heat conduction gasket used for improving heat conduction efficiency and a second phase change heat conduction gasket used for improving heat conduction efficiency, a plurality of hollow cavities and high-heat-conduction metal bridges are arranged in the first heat conduction base body, and the hollow cavities are connected through the high-heat-conduction metal bridges to form a multi-path parallel internal heat conduction channel; a plurality of hollow cavities are arranged in the first heat conduction base body and the second heat conduction base body, and a multi-path parallel heat conduction channel is formed by a high heat conduction metal bridge, so that the heat exchange assembly can greatly shorten the conduction path of heat flow from a semiconductor thermoelectric element to the surface of the heat conduction base body, and the harsh requirements for rapid heat exchange and dynamic temperature control are effectively met.

The invention relates to a germanium telluride-based thermoelectric element and a preparation method thereof, and the thermoelectric element has a three-layer sandwich structure, specifically an interface barrier layer, a germanium telluride-based thermoelectric layer and an interface barrier layer. The material of the interface barrier layer is Fe3Ni, FeNi3 or FeCoNi. The germanium telluride thermoelectric element has low interface resistance, the interface structure formed by sintering is reliable and good in stability, interface reaction is effectively inhibited, high conversion efficiency of the thermoelectric element is facilitated, long-term service stability is guaranteed, and the germanium telluride thermoelectric element is simple in preparation method, low in cost and good in practicability.

The refrigerator includes: a main body; a storage chamber formed inside the main body; a door provided so that the storage compartment can be opened and closed; an evaporator that evaporates the refrigerant to generate cold air; an evaporator duct disposed at a rear side of the storage compartment to supply the cold air generated by the evaporator to the storage compartment; and a thermoelectric cooling device including a thermoelectric element having a heating unit and a cooling unit. The thermoelectric cooling device is configured to heat air from the outside of the main body by the heating unit and discharge the air heated by the heating unit to the outside of the main body, cool air from the storage compartment by the cooling unit, and supply the air cooled by the cooling unit to the storage compartment, and is disposed above the storage compartment.

A refrigerator may include: a storage compartment; a cooling sink (CS); a thermoelectric element including a cooling layer contacting the CS, the thermoelectric element configured to, based on a voltage pulse applied to the thermoelectric element, cool the cooling layer and thereby cool the CS; a fan controllable to generate an airflow to be cooled by the CS; a cooling duct covering the CS and fan, and configured to guide the airflow from the storage compartment to the CS and to accommodate defrost water generated by water, frozen by the CS, being defrosted; a temperature sensor to detect a temperature of the CS; and a processor configured to: control the cooling fan to evaporate the defrost water, and perform an anti-freezing control so that the defrost water does not freeze, the anti-freezing control including adjusting a duty ratio of the voltage pulse based on the detected temperature of the CS.

A refrigerator including a main body including a storage compartment; a first cooler configured to cool the storage compartment, and including a thermoelectric element, a heat dissipation fan, and a cooling fan; a second cooler configured to cool the storage compartment, and including a compressor, and an evaporator fan; and at least one processor configured to, based on a failure in the first cooler, increase an operating speed of the compressor and the evaporator fan of the second cooler.

A refrigerator may include a main body; a storage compartment inside the main body; a thermoelectric module (TM) configured to cool the compartment and including: a thermoelectric element (TE) including a heating portion (HP) and a heat absorbing portion (HAP), a heat dissipation sink (HDS); and a blocking portion configured to block a current from being supplied to the thermoelectric element based on a temperature of the heat dissipation sink exceeding a predetermined temperature.

A refrigerator may include: a main body defining a storage chamber; a door configured to open and close the storage chamber; a refrigeration cycle device including a compressor and an evaporator and operable to cool the storage chamber; a thermoelectric element operable to cool the storage chamber; at least one sensor configured to produce sensor data associated with the refrigerator; and at least one processor configured to: operate the compressor to perform a refrigeration cycle based on a cooling condition being satisfied, start a cooling mode based on a defined condition associated with a time that the door is open being satisfied, and based on the cooling mode being started, obtain a predicted temperature value of the storage chamber from a temperature prediction model based on the sensor data produced by the at least one sensor, and operate the thermoelectric element to cool the storage chamber based on a difference between the predicted temperature value obtained from the temperature prediction model and a target temperature value being greater than a defined value.

A refrigerator including a thermoelectric module that includes a module plate having an opening, a first heat sink, a second heat sink, a thermoelectric element to be disposed in the opening so that one surface of the thermoelectric element contacts the first heat sink and another surface of the thermoelectric element, opposite the one surface, contacts the second heat sink, a fastening member that is configured to couple the first heat sink and the second heat sink to the module plate by being passed through the first heat sink, the module plate, and the second heat sink, having a head portion and a connecting portion having a diameter smaller than the head portion, a washer member supported between the head portion and the first heat sink, and a nut member to which the connecting portion is fastened and that is supported by the second heat sink.

A container with active temperature control system is provided. The active temperature control system is operated to heat or cool a chamber sized to receive a beverage therein. The container includes an insulated vessel that has the chamber and a cooling or heating unit. The cooling or heating unit includes a thermoelectric element in thermal communication with the chamber, phase change material in thermal communication with the thermoelectric element, a power storage device, and circuitry to control the operation of the thermoelectric element. The cooling or heating unit is operable to increase or decrease or maintain a temperature of the beverage in the chamber by operating the thermoelectric element to draw heat from the chamber and transfer it to the module of phase change material.

Device for generating a dielectric barrier discharge, comprising: - a discharge reactor comprising a thermoelectric element (1) and an electrode (2), and - a control device (13) comprising a high-voltage source (12) and a low-voltage source (11), wherein the high-voltage source (12) is configured to apply a high-voltage potential to the electrode (2) sufficient to ignite the dielectric barrier discharge, wherein a gas is enriched with reactive species by the dielectric barrier discharge, wherein the low-voltage source (11) is configured to adjust a current through the thermoelectric element (1), wherein the control device (13) is configured to suitably adjust operating parameters of the high-voltage source (12) and the low-voltage source (11) for a desired composition of the enriched gas, wherein the control device (13) is configured toWhen setting the operating parameters, the gas flow rate through the discharge reactor and / or the composition and / or temperature of the gas at the inlet to the discharge reactor and / or the ambient temperature must be taken into account.

A pad is disclosed. The pad of the present disclosure comprises: a case having an upper plate; a thermoelectric element disposed inside the case; a plate in contact with the thermoelectric element and disposed below the upper plate; and an electric heating sheet disposed between the plate and the upper plate, wherein the upper surface of the electric heating sheet may be in contact with the upper plate, and the lower surface of the electric heating sheet may be in contact with the plate.

According to various embodiments, provided is a portable rehabilitation cooling therapy device comprising: a cooling device; and a gripping structure that is connected to the cooling device and includes a battery. The cooling device includes: a housing that includes a plurality of first holes and a plurality of second holes on the respective side surfaces and a plurality of third holes on the upper portion; a multi-layer thermoelectric element disposed inside the housing and capable of cooling one surface to -10°C or below by using power supplied from the battery; a heat sink that is disposed on the upper portion of the multi-layer thermoelectric element and includes a body and a plurality of heat dissipation fins protruding from the body and extending in a direction from the plurality of first holes toward the plurality of second holes; and a heat dissipation fan disposed on the heat sink.

The present application relates to a kind of ion polymer-based thermoelectric pile heat flux sensor device, the thermoelectric pile heat flux sensor includes in turn: first protective layer, first connecting circuit, thermal resistance layer, thermoelectric element, second connecting circuit and second protective layer, wherein the thermoelectric element is embedded in the thermal resistance layer and is made of ion conductor with free ion as main carrier. Since ion conductor has huge thermoelectric potential, only a few pairs of ion thermoelectric column need to be integrated to obtain the required thermoelectric voltage with the required sensitivity.

Embodiments disclosed in the present document relate to a thermoelectric element and a thermoelectric module and, specifically, to a thermoelectric element and a thermoelectric module for responding to partial disconnection of a thermoelectric element. A thermoelectric element according to an embodiment may comprise: a first substrate; a plurality of first electrodes disposed on the first substrate; a plurality of thermoelectric legs disposed on the first electrodes; a plurality of second electrodes disposed on the thermoelectric legs; and a second substrate disposed on the second electrodes, wherein the thermoelectric legs include: a plurality of outer legs arranged along the outer periphery of the first substrate and connected to each other in series; and a plurality of inner legs arranged inward of the outer legs and connected to each other in series, and the first electrodes include a first terminal electrode pair connected to both ends of the outer legs connected to each other in series.

The embodiment of the invention provides a camera defrosting system control method and device, equipment and a medium. The camera defrosting system comprises a thermoelectric sheet assembly, a heating assembly, a heat dissipation structure layer, a sensor assembly and an energy storage and control assembly. The operation heat of the energy storage and control assembly is transmitted to the thermoelectric sheet assembly through the heat dissipation structure layer. The heat dissipation structure layer is used for separating the heating assembly from the thermoelectric sheet assembly when the heating assembly emits heat; the thermoelectric sheet assembly is used for converting operation heat to charge the energy storage and control assembly; environmental parameters detected by a sensor assembly are obtained; a dynamic defrosting threshold value is determined based on the environment parameters; determining a target power regulation coefficient based on the charge state of the energy storage and control assembly and the operation state of the thermoelectric sheet assembly; and the heating assembly and the energy storage and control assembly are controlled based on the target power adjusting coefficient, the dynamic defrosting threshold value and the environment parameters. According to the embodiment of the invention, camera demisting can be carried out in a low-power-consumption and self-adaptive manner.

Provided is a thermoelectric element which has high thermoelectric conversion efficiency, can obtain a high ZT value, and can be surface-mounted and reduced in size. A thermoelectric element according to the present invention is provided with: a first thermoelectric material part (1) having one end part (1a) and the other end part (1b); a second thermoelectric material part (2) that is directly bonded to the first thermoelectric material part or is bonded to the first thermoelectric material part via a conductor (2a); and a pair of electrodes (3) connected to the first thermoelectric material part, the first thermoelectric material part having an absolute value of a Seebeck coefficient higher than that of the second thermoelectric material part and a resistivity higher than that of the second thermoelectric material part, and an assembly (4) of the first thermoelectric material part and the second thermoelectric material part having end surfaces on one end side and the other end side. The pair of electrodes is in contact with the first thermoelectric material portion without being in contact with the second thermoelectric material portion, and is formed on an end surface on the one end portion side and an end surface on the other end portion side of the joined body.

A battery pack having at least one cell module that is connected between a plurality of pack terminals, the battery pack including: at least one thermoelectric element disposed at each of the at least one cell modules; a thermoelectric element power supply circuit configured to supply a driving voltage to the at least one thermoelectric element; and a controller configured to control the thermoelectric element power supply circuit to transfer a first voltage that is supplied for driving the thermoelectric element from a charger as the driving voltage for the at least one thermoelectric element when a temperature of the at least one cell module is out of a first range in a charging mode, the first voltage being different from a second voltage that is a charging voltage supplied to the battery pack from the charger.

The invention discloses a temperature difference self-power-generation device utilizing waste heat of a buried steam pipeline and a working method, and belongs to the technical field of heat energy recovery and self power supply. The first heat-conducting plate is arranged on the outer wall of the steam pipeline, the hot-end ceramic substrate, the thermoelectric element, the cold-end ceramic substrate and the second heat-conducting plate are arranged outside the first heat-conducting plate, and the thermoelectric element is connected with the cathode lead and the anode lead. The second heat-conducting plate is connected with a heat pipe, and the upper end of the heat pipe extends out of the ground. Through the design that the annular thermoelectric power generation piece is attached to the outer wall of the steam pipeline, the contact thermal resistance of a heat source and the power generation piece is effectively reduced, it is ensured that the hot end is evenly heated, and the heat energy conversion efficiency is improved; a cold-end heat dissipation structure combining the heat pipes and the heat dissipation fins is adopted, cold-end heat is efficiently transmitted to surface air through the phase change heat transfer characteristic of a working medium, the cold-end temperature is remarkably reduced, the effective temperature difference of the thermoelectric power generation piece is maintained, and therefore the power generation efficiency is stably improved.

A refrigerator according to the present disclosure includes: a thermoelectric element; a cooling fan; a heat radiation fan; a temperature sensor that measures the temperature of a cooling sink; and a control unit configured to: start a first defrosting process by turning off the thermoelectric element, the cooling fan, and the heat radiation fan when a defrosting operation starts; when an end condition of the defrosting operation is sensed while a start condition of a second defrosting process is not sensed by the temperature sensor during the execution of the first defrosting process, end the defrosting operation; start the second defrosting process by turning on the cooling fan and the heat radiation fan while the thermoelectric element is turned off when the start condition of the second defrosting process is sensed by the temperature sensor during the execution of the first defrosting process; and end the defrosting operation when an end condition of the defrosting operation is sensed by the temperature sensor during the execution of the second defrosting process.

The disclosure is related to structures and method of making thermoelectric devices. The structures include an electrically nonconductive and thermally conductive substrate with direct bonded or electroplated copper. Thermoelement pairs are formed on a barrier layer deposited on the outer layers of the substrate in gaps formed from insulator material deposited on the barrier layer. Openings in the barrier layer may be filled with an insulator to isolate thermoelements, which may then be bridged by a metal layer. Thermoelement pairs may be combined to form larger devices.

The refrigerator according to the present disclosure comprises: a compressor; a thermoelectric cooling device comprising a thermoelectric element having a heating unit and a cooling unit, a heat dissipation sink contacting the heating unit, a cooling sink contacting the cooling unit, a heat dissipation fan for blowing air toward the heat dissipation sink, and a cooling fan for blowing air toward the cooling sink; and a processor for turning on the heat dissipation fan and the cooling fan on the basis of detecting the thermoelectric element's turn-on condition, and turning off at least one of the cooling fan and the heat dissipation fan, which have been turned on, or adjusting the RPM thereof on the basis of detecting a preset condition to operate the cooling fan or the heat dissipation fan in a state in which the cooling fan or the heat dissipation fan is turned on. The condition to operate the cooling fan or the heat dissipation fan may include at least one of a condition to turn off the thermoelectric element, a condition to turn off the heat dissipation fan, and a condition to turn off the cooling fan.

The present application provides a thermostat and a manufacturing method thereof, which can easily assemble shell members constituting a shell and reduce manufacturing cost. The thermostat comprises a shell (1), a thermoelectric element (17) moving in an axial direction in response to the temperature of a cooling liquid, a valve body (15) opening and closing a communication part of a first flow passage (21) and a second flow passage (7) by moving away from and approaching a valve seat (20b) provided inside the shell in response to the movement of the thermoelectric element, and a force applying member (16) applying force to the valve body to the valve seat side. The shell comprises a first shell member (2) having a main body (20), the first flow passage and the second flow passage, and a second shell member (3) fastened to the first shell member by rotating in a circumferential direction of the first shell member and having a third flow passage (22).

This refrigerator may comprise: a storage chamber formed inside a main body; and a thermoelectric module assembly coupled to the upper surface of the main body to cool the storage chamber. The thermoelectric module assembly comprises: a thermoelectric element having a heat generation unit and a heat absorption unit; a heat radiation sink in contact with the heat generation unit; a cooling sink in contact with the heat absorption unit; and a heat radiation duct for radiating heat from the heat radiation sink, and can be coupled to the upper surface of the main body to cool the storage chamber. The refrigerator may comprise a fastening member passed through the thermoelectric module assembly and coupled to the upper surface of the main body to couple the thermoelectric module assembly to the upper surface of the main body. The thermoelectric module assembly may comprise at least one downwardly protruding support rib so as to be supported at a position on the upper surface of the main body other than the position at which the fastening member is coupled.

The application discloses an n-type bismuth telluride-based thermoelectric element NiFeP alloy interface barrier layer and a preparation method thereof, and belongs to the technical field of thermoelectric materials and devices. The barrier layer in the application is an electroplated NiFeP ternary plating layer, the content of Fe is 15-20 wt%, the content of P is 2-4 wt%, the balance is Ni, the thickness is 5-10 microns, and the barrier layer is prepared through substrate pretreatment, electroplating solution preparation, electroplating deposition and post-treatment. The application also constructs a thermoelectric element containing the barrier layer, and the n-type bismuth telluride thermoelectric material layer is connected by a NiFeP alloy interface barrier layer, a SAC305 solder layer and a copper electrode layer in sequence. The barrier layer has excellent diffusion inhibition effect, the interface bonding strength is greater than 16 MPa and the contact resistivity is less than 8 mu omega cm after aging at 200 DEG C for 144 hours. 2 The preparation process is simple, the cost is relatively low, large-scale production is suitable, and the barrier layer is expected to play an important role in the application field of thermoelectric materials and devices.

To provide a thermoelectric conversion material capable of improving the efficiency of thermoelectric conversion.SOLUTION: A thermoelectric conversion material includes a base material composed of SiGe, a first additive element functioning as a dopant, a second additive element different from the first additive element, and oxygen. The second additive element includes at least one of Mg, Ca, and Ti. A content ratio of the second additive element relative to the base material is 0.5 at% or more and 5 at% or less. In a field of view selected such that a grain boundary crosses opposite sides of the field of view to each other that is the field of view of a cross-section of the base material, distributions of the second additive element and oxygen have a positive correlation. A correlation coefficient of the correlation is in a range of 0.2 or more and less than 1.0.SELECTED DRAWING: Figure 7

According to an embodiment, a display device includes: a display panel, a printed circuit board (PCB), a heat generating element comprising an electronic component including various circuitry coupled on the PCB and configured to emit heat based on driving of the display panel, a chassis positioned on a surface of the display panel, including a heat dissipation portion adjacent to the heat generating element, and a support portion configured to support the PCB, a thermoelectric element including at least one electrode interposed between the heat generating element and the heat dissipation portion, including a first surface in contact with the heat generating element and a second surface in contact with the heat dissipation portion, and a battery connected to the thermoelectric element. The thermoelectric element is configured to charge the battery based on a temperature difference between a first temperature of the first surface, associated with the heat emitted from the heat generating element, and a second temperature of the second surface, which is lower than the first temperature by the heat dissipation portion.

The invention relates to a thermoelectric heat pump including a heat exchanger block with a first channel for flow therethrough of a first heat transfer fluid such as a liquid medium and a separate second channel for flow therethrough of a second heat transfer fluid such as a liquid medium. The heat exchanger block includes a heat exchange cavity which is hydraulically separated by a partition into a first and a second sub-cavity which are connected to respectively the first and second channel and wherein the first heat transfer fluid in the first sub-cavity is in heat-exchanging contact with a first side of the partition and the second heat transfer fluid in the second sub-cavity is in heat-exchanging contact with a second side of the partition lying opposite the first side. The partition includes a thermoelectric element with a cold side and a hot side lying opposite thereto and at a distance therefrom. An outer peripheral edge extends between the cold and hot side, which thermoelectric element is configured to transport heat from the cold side to the hot side and wherein the cold side is in heat-exchanging contact with the first heat transfer fluid and wherein the hot side is in heat-exchanging contact with the second heat transfer fluid and wherein each channel is provided with a pump for pumping the respective heat transfer fluid through the channel.