Interconnect system for heating conductors

Details Interconnect system for heating conductors Interconnect system for heating conductors

1998-06-23

1999-12-07

Leung, Philip H.

Electric heating

Heating devices

With heating unit structure

219517, 219528, 219535, 219549, 339113, 439281, 439490, 524233, 524514, H05B 308

Patent

active

059987723

ABSTRACT:
A system of interconnected heating conductors, suitable for preventing freezing of water lines in an aircraft for example, includes a plurality of heater units (1, 12, 14) electrically coupled together by respective extension cables (3) and electrical coupling elements (42). Each heater unit comprises one or more heating conductor bands, tapes or strips (2, 21, 22) connected to respective connection modules (5, 51, 52, 52', 53) at the ends thereof. The connection modules may connect together several heater bands within one heater unit, and may connect the terminal ends of the heater bands of one heater unit to the extension cables by which several respective heater units may be connected together. Each connection module includes a housing (6) enclosing an inner chamber (61) therein, and at least one electrical connector element (7) such as a crimpable connector fixed within the housing (6). The respective conductors of the heater bands (2) and of the extension cables (3) extend into the housing through lead-in openings (64) and are connected together within the housing (6) by the respective connector elements (7). A complete and reliable seal against moisture penetration is achieved by injecting a sealing compound (19) into a fill hole through the housing wall, so that the inner chamber (61) of the housing (6) is completely filled with the sealing compound (19). The sealing effect eliminates capillary action even when subjected to vibrations, shock, temperature variations, and low pressure conditions. The assembly of the connection modules is simple and economical.

REFERENCES:
patent: 3341690 (1967-09-01), Commins
patent: 4066870 (1978-01-01), Colten
patent: 4101190 (1978-07-01), Schoff
patent: 4419569 (1983-12-01), Colten
patent: 4639066 (1987-01-01), Shimamiya et al.
patent: 5510405 (1996-04-01), Heucher et al.
Excerpt of Product Catalog: "Products for Freeze Protection", Wittmann GmbH, Heidelberg, Germany.
Excerpt of Product Catalog: "Heizelemente und Widerstande," p. 17, friedr.freek GmbH.
Excerpt of Product Catalog: "bringt Warme auf den Punkt bis 1000.degree. C.--optimal dosiert--fur Industrie und Labor", Wittmann GmbH, Heidelberg, Germany.
Excerpt of Product Catalog: "The BARTEC Group".

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