| 摘要 |
1,067,333. Thermoelectric devices. CAMBRIDGE THERMIONIC CORPORATION. May 3, 1965 [May 1, 1964], No. 18475/65. Heading H1K. In manufacturing a support carrying conductive thermojunction members for incorporation in a thermocouple assembly, the support is first covered with an insulating cement, then grains of hard insulating material are embedded in the cement so as to protrude therefrom and thermojunction members applied in such a way that they are keyed to the grains. In a typical arrangement the support plate is of alumina, beryllia, anodized aluminium, copper, or beryllium copper. Epoxy resin is applied to it and grains of alumina, silicon carbide, glass or quartz embedded in it by means of an air gun. After hardening the resin thermojunction members 16 (Fig. 1), e.g. of copper, silver or nickel are flame sprayed on in any desired pattern through a stencil and are then tinned. Tinned P and N thermoelements of bismuth telluride or lead telluride are then soldered between the support plate and a similar plate with a corresponding pattern of thermojunction members to provide a series connected assembly. Finally, leads 27 and 28 are attached to the terminal thermojunction members.
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