Abstract:
Disclosed is a micro particle for a thermal control material capable of being applied as a highly thermal conductive material for thermal control, and an apparatus and a method of producing the micro particle for the thermal control material by using an ultrasonic high-temperature vibration scheme. More specifically, a Boron Nitride (BN) particle having a plate shape and an excellent thermal conductivity is coated on a PCM having a shape of a micro bead, to increase the thermal conduction to the inside PCM, so that a phase change is easily generated, and which allows an easy treatment of the PCM in a liquid state at a temperature equal to or higher than a melting point of the PCM.
Abstract:
A system for controlling thermal conductivity of a housing of an electronic part is provided. In particular, liquid is disposed within a hollow portion formed between an external wall body and an internal wall body of the housing and a magnetic field generating member is attached to an outer surface of the internal wall body. Insulating magnetic particles are dispersed in the liquid, and an orientation of the insulating magnetic particles is changed according to a direction of a magnetic field applied by the magnetic field generating member. This, as a result, controls the thermal conductivity of the housing.
Abstract:
A heat dissipation device for electronic controllers, is provided and includes a housing that has a hollow portion into which a working fluid for heat transfer and dissipation is filled. The housing of the electronic controller is formed to have the hollow portion using the material containing the heat-conductive filler and the heat transfer working fluid is filled in the hollow portion, to improve the cooling efficiency and achieving the weight reduction. By forming the condensation unit that condenses the vaporized working fluid in the upper end portion relative to the working fluid filled in the hollow portion of the housing, the heat exchange effect of the working fluid may be maximized.
Abstract:
A battery pack air cooling structure and method having a thermoelectric element are provided. The structure includes a housing having a cooling passageway through which a refrigerant passes and a plurality of cell module assemblies that are disposed inside the housing and each include a pair of unit cells stacked parallel to each other. A heat transfer plate is interposed between the pair of unit cells. A heat pipe has a first portion disposed in the heat transfer plate and protrudes second portion that protrudes out of the heat transfer plate. A heat-exchanging member formed at the second portion of the heat pipe and is configured to perform heat-exchange with air that passes through the cooling passageway; and a thermoelectric element is formed at an upstream side into which air of the cooling passageway is injected.
Abstract:
The present disclosure provides a high heat radiation composite material including a hybrid filler comprising expanded graphite filled with expandable polymeric beads, and a fabrication method thereof. In the method, a dispersion solution is prepared by dispersing expandable polymeric beads in ethanol. Expanded graphite is immersed in the dispersion solution, and heat-treated to remove ethanol, thereby producing the hybrid filler. The hybrid filler is dispersed into the matrix polymer via an extrusion/injection process, thereby producing the composite material.
Abstract:
Disclosed is an integrated measurement apparatus that may perform measurement of various material characteristics (e.g., thermal conductivity, electrical conductivity, magnetic inductivity, etc.) and defects of a composite material in a non-destructive manner. The apparatus may include: a jig chamber having a door; a first jig device for measuring electrical characteristics, a second jig device for measuring magnetic characteristics, and a third jig device for measuring magnetic characteristics, the three jig devices interchangeably mounted in the jig chamber so that either the first, second, or third jig device may be used to measure a composite material sample.
Abstract:
A thermoelectric module includes: an electrode; a double layer stacked on a thermoelectric pellet; and a solder layer interposed between the double layer and the electrode to bond the double layer to the electrode, the solder layer containing a Sn—Cu-based alloy. The solder layer is formed to have an interface with one of the double layer and the electrode and has at least one ε layer having an ε phase (Cu3Sn).
Abstract:
A thermoelectric module includes a flexible film with an insulation characteristic, the film having a shape that is longer in a lengthwise direction than in a width direction, a plurality of n-type thermoelectric elements and a plurality of p-type thermoelectric elements alternately arranged on one surface of the film in the lengthwise direction of the film, and first electrodes and second electrodes that alternately connect the plurality of n-type thermoelectric elements and the plurality of p-type thermoelectric elements at one side and an opposite side with respect to the width direction of the film to electrically connect the plurality of n-type thermoelectric elements and the plurality of p-type thermoelectric elements in series. One lateral end and an opposite lateral end of the film are bent with the plurality of n-type thermoelectric elements, the plurality of p-type thermoelectric elements, the first electrodes, and the second electrodes attached to the film.
Abstract:
A thermoelectric module, a frame for the thermoelectric module, and a vehicle including the thermoelectric module is provided. The thermoelectric module includes a frame alternately bent toward a hot side on which a heat source is located and a cool side on which a cooling medium is located, to have a plurality of hot-side end portions in contact with the heat source, a plurality of cool-side end portions in contact with the cooling medium, and a plurality of thermoelectric element installation portions connecting the plurality of hot-side end portions and the plurality of cool-side end portions, a plurality of n-type and p-type thermoelectric elements arranged on the thermoelectric element installation portions, and a plurality of first electrodes and second electrodes that electrically connect, in series, the plurality of n-type and p-type thermoelectric elements arranged on each of the thermoelectric element installation portions.
Abstract:
A thermoelectric generator for a vehicle utilizing heat of exhaust gas discharged from an engine of the vehicle includes a heat exchange unit, through which a coolant circulates, a thermoelectric generation unit for converting thermal energy of exhaust gas into electrical energy, a first flow passage for guiding the exhaust gas to pass through the heat exchange unit, a second flow passage for guiding the exhaust gas to pass through the thermoelectric generation unit, a third flow passage for guiding the exhaust gas to bypass the heat exchange unit and the thermoelectric generation unit without passing therethrough, a first valve for opening or closing the first flow passage, a second valve for selectively opening or closing the second flow passage and the third flow passage, and a driving unit for operating the first valve and the second valve by a single power source.