Abstract:
A device for the rapid defrosting of ice (12) which is comprised of resistive sheets (22) placed over an evaporator (10) which include a number of cooling plates (14). The resistive sheets (22) and the cooling plates (14) are physically in contact therebetween, the physical contact is made in a number of areas where thermal exchange surfaces (16, 30) are located, so as to increase the efficiency of heat transmission from the resistive sheets (22) to the cooling plats (14).
Abstract:
A thermoelectric cooling and heating device (1) including a substrate (1), a plurality of thermoelectric elements (2) arranged on one side of the substrate and configured to perform at least one of selective heating and cooling such that each thermoelectric element (2) includes a thermoelectric material (2b), a Peltier contact (2c) contacting the thermoelectric and forming under electrical current flow at least one of a heated junction and a cooled junction, and electrodes configured to provide current through the thermoelectric material (2b)and the Peltier contact (2c). As such, the thermoelectric cooling and heating device (1) selectively biases the thermoelectric elements (2) to provide on one side of the thermoelectric device (1) a grid of localized heated or cooled junctions.
Abstract:
A method of manufacturing a sheathed electrical heater assembly comprising the steps of: molding a core element (20) into a desired shape, the core element having an outer surface; heating the core element (20) at an elevated temperature sufficient to release organic material from the core element (20); placing a heating element (22) in communication with the core element; and, encapsulating the core, and heating element in an insulation protection layer (24), whereby the heater assembly is formed. Additionally shown is a sheathed electrical heater assembly comprising: a core (20) made of an organo-ceramic material; a heating element (22) in communication with the core; an insulation protection layer (24) encapsulating the core and heating element to produce the heater assembly, the protection layer (24) comprising an organo-ceramic material; and, a sheath encapsulating the heater assembly, the sheath also comprising an organo-ceramic material.
Abstract:
A pipe stand heater system (20) for heating an instrument (M) within an enclosure (30) supported by a pipe stand. The heater system includes a housing mounted to the pipe stand and a heater unit in the housing. A bracket (34) is provided for mounting the instrument (M) to the housing. The heater unit can be powered by electric, steam or other fluids.
Abstract:
The invention relates to a device with an electrical heater and a heterogeneous catalyzer which is heated by said electrical heater. The heater enables the energy required for catalyzed reaction to be provided in a simple manner.
Abstract:
In order to manufacture a high performance infrared emitting device which has high speed thermal response characteristics and a high infrared emissivity, a bridge part (heating part) having an isolation space is formed in a silicon substrate. After boron ions are implanted as impurities such that the peak value of the impurity concentration distribution is not less than 5 x 10 /cm , the substrate is annealed under predetermined conditions to activate the impurity layer which is a bridge part to adjust its thickness not larger than 5 mu m. Even if the thickness of the bridge part is reduced in order to improve the thermal response characteristics, since the impurity concentration is high, the infrared emissivity is not lowered and, further, a large temperature modulation width can be obtained. The dosage of the boron ions is preferably not less than 3.0 x 10 /cm . In order to activate the impurity layer after the boron ion doping, if the substrate is annealed, for instance, at a temperature of 1100 DEG C - 1200 DEG C in a nitrogen gas atmosphere for 5 - 40 minutes and, further, in a wet oxygen atmosphere for 25 - 40 minutes, the concentration of the boron ions and the activation of the impurity layer can be improved stably.
Abstract translation:为了制造具有高速热响应特性和高红外发射率的高性能红外发射装置,在硅衬底中形成具有隔离空间的桥接部分(加热部分)。 将硼离子作为杂质注入,使得杂质浓度分布的峰值不小于5×10 19 / cm 3,在预定条件下对衬底进行退火,以激活作为桥接部分的杂质层 调整其厚度不大于5微米。 即使为了提高热响应特性而减小桥接部的厚度,由于杂质浓度高,所以红外线发射率不降低,另外也可以得到较大的温度调制宽度。 硼离子的剂量优选为3.0×10 14 / cm 2以上。 为了在硼离子掺杂之后激活杂质层,如果衬底在氮气气氛中在1100℃〜1200℃的温度下退火5〜40分钟,此外,在湿式 氧气氛25-40分钟,可以稳定地提高硼离子的浓度和杂质层的活化。
Abstract:
Proposed is a honeycomb body with two ends, built at least partlyof sheet-metal structures (7, 8) disposed in layers, the sheet-metal structures forming a multiplicity of channels, running from one end to the other, through which a fluid can flow. The honeycomb body is divided by one or more narrow gaps (9) and/or electrically insulating layers (20) extending from one end to the other in such a way that, in each cross-sectional zone, the electrical conductivity of the honeycomb body is decreased, but at least one continuous, electrically conduction current path is left in the cross-sectional plane of the body. The sheet-metal structures (7, 8) are mounted on mainly metal support structures (4, 5, 13, 14, 15, 16) of which at least part runs inside the honeycomb body and at least sections of which run parallel to the electrically insulating gaps (9) and/or layers (20), or inside these gaps or layers. The support structures (4, 5, 13, 14, 15, 16) are designed to act simultaneously as stabilizers for the gaps (9) and/or as supports for the electrically insulating layers (20). Some (13) of the support structures are connected electrically to each other and to a first terminal contact (11), while others (14) are connected electrically to a second terminal contact (12), in such a way that large electric currents can be applied through the contacts (11, 12) to the sheet-metal structures (7, 8). The honeycomb body is intended principally for use as a heated catalytic-converter body in motor vehicle exhaust systems in which it will be subjected to high mechanical loads.
Abstract:
Heating devices, in which a conductive pattern is carried on an insulating surface and a pair of spaced apart electrodes are electrically connected to the conductive pattern, are characterized in that the conductive pattern in at least one heating area of the device defines a two-dimensional array of areas that are devoid of conductive material (''voids'') within a continuous ''mesh'' of conductive material. In preferred embodiments in which the conductive pattern comprises either a printed conductive graphite ink layer or a vacuum-deposited metal layer, the centers of the adjacent voids are at the corners of equilateral triangles and each void is a hexagon.
Abstract:
Element chauffant blinde dans lequel un fil electrique chauffant (2) est insere dans une conduite metallique (3) qui est remplie d'une poudre electriquement isolante (4). La poudre electriquement isolante (4) contient une poudre metallique selectionnee specifiquement de maniere a supprimer l'oxydation du composant metallique du fil (2) ce qui permet d'accroitre la duree du fil, qui s'applique a de nombreux domaines tant domestiques qu'industriels.
Abstract:
Offenbart sind ein flexibler flächiger Heizer mit mehreren PTC-Heizelementen, die von SMD-Bauteilen gebildet sind, und ein Verfahren zur Herstellung derartiger Heizer. Zur Wärmeleitung und/oder zur Optimierung der Wärmeverteilung sind die Leiterbahnen breiter ausgeführt als eine Länge der SMD-Bauteile.