Self-regulating heater
    55.
    发明授权
    Self-regulating heater 失效
    自调节加热器

    公开(公告)号:US06350969B1

    公开(公告)日:2002-02-26

    申请号:US09930567

    申请日:2001-08-15

    IPC分类号: H05B102

    摘要: A compact, inexpensive self-regulating heater for heating a surface to a prescribed temperature. A first embodiment comprises a PTC ceramic heating element which is conductively bonded directly to heavy copper (or brass) electrodes, which conduct both heat and electricity with low resistance and present a smooth, extended heat transfer surface. At least one of the electrodes (on at least one side of the PTC element) is configured for maximum surface area in contact with the article being heated. The preferred methods of manufacture of this invention result in the electrodes being prestressed in tension while the ceramic element is prestressed in compression at room temperature. Upon heating, during use, these stresses tend to disappear as the electrodes expand. A second embodiment comprises a heater tape constructed of multiple modules which are electrically and mechanically connected with bus wires having a bend therein to facilitate the wires being bent in the side to side direction as well as in the up and down direction so that the heater tape can follow an irregular path. The modules are mounted in a flexible rubber skeleton which is sharply necked down between the modules to allow ease of bending in the side-to-side direction as well as in the up and down direction.

    摘要翻译: 一种紧凑,便宜的自调节加热器,用于将表面加热到规定的温度。 第一实施例包括PTC陶瓷加热元件,其直接导电地结合到重铜(或黄铜)电极,其以低电阻传导热和电,并且呈现平滑延长的传热表面。 至少一个电极(在PTC元件的至少一侧)被配置成与被加热物体接触的最大表面积。 本发明的优选制造方法导致电极被预应力拉伸,同时陶瓷元件在室温下受压制。 加热时,在使用过程中,随着电极的膨胀,这些应力将消失。 第二实施例包括由多个模块构成的加热器带,该多个模块与其中具有弯曲部的总线电连接和机械连接,以便于电线在侧向方向以及上下方向上弯曲,使得加热带 可以遵循不规律的路径。 模块安装在柔性橡胶骨架中,该橡胶骨架在模块之间急剧缩小,以便容易地在侧向方向以及上下方向上的弯曲。

    Integral structure and thermal protection system
    60.
    发明授权
    Integral structure and thermal protection system 失效
    整体结构与热保护系统

    公开(公告)号:US5154373A

    公开(公告)日:1992-10-13

    申请号:US248687

    申请日:1988-09-26

    申请人: Harry A. Scott

    发明人: Harry A. Scott

    摘要: An integral structure and thermal protection system, particularly designed for hypersonic aerospace vehicles, is comprised of a hard external shell or outer face sheet formed of a ceramic matrix, such as silicon carbide, and a rigid insulator core in the form of foamed ceramic, such as silicon carbide, the outer face sheet being integrally connected to the insulator core. A prime strucutral material, such as an aircraft structural member, is integrally connected as by bonding or brazing to the insulator core, the core being attached to the prime structural material or aircraft structural member by an inner face sheet forming the outer skin of such structural member.

    摘要翻译: 特别设计用于超音速航空航天车辆的整体结构和热保护系统由硬质外壳或由诸如碳化硅的陶瓷基体形成的外表面片以及泡沫陶瓷形式的刚性绝缘体芯组成, 作为碳化硅,外表面片与绝缘体芯一体连接。 诸如飞行器结构构件的主要结构材料通过粘合或钎焊一体地连接到绝缘体芯,芯通过形成这种结构的外表皮的内表面片附接到主结构材料或飞机结构构件 会员。