Sealed wire entry for instrument housing and method of sealing

Details Sealed wire entry for instrument housing and method of sealing Sealed wire entry for instrument housing and method of sealing

G - Physics

12

B

G12B 9/04 (2006.01) G01D 11/24 (2006.01) G01F 15/06 (2006.01) G01F 15/14 (2006.01) G06M 1/02 (2006.01) H01R 13/52 (2006.01)

Patent

CA 2214706

A sealed wire entry port for a housing (10) having a base (12) and a top (11), and a body of sealing material (16) joining the top (11) to the base (12) and a pair of insulated wires (21) in which the insulation (31) is removed where the wires (21) run through the body of sealing material (16), a plug (22) disposed in an opening in the base (12), wherein the two wires (21) run through the plug (22) into the sealing material (16) and a vent (23) that runs through the plug (22) into the housing (10), wherein the vent (23) is adapted to be closed after a gas has been either evacuated or introduced into the interior of the housing (10) to reduce moisture within the housing before final sealing. A method of assembling and sealing the unit (10) is also disclosed.

L'orifice d'entrée d'un fil plombé dans un logement (10) est constituée d'une base (12), d'un couvercle (11) et d'un corps de matériau de scellement (16) servant à réunir le couvercle (11) à la base (12), ainsi que d'une paire de fils isolés (21), bien que dépourvus d'isolant (31) sur la section traversant le corps du matériau de scellement (16). Un bouchon (22), également inséré dans une ouverture de la base (12), est traversé des deux fils (21) reliés au matériau de scellement et d'un évent (23) communiquant avec le logement (10). Cet évent (23) peut se fermer après l'évacuation ou l'introduction d'un gaz, pour limiter la quantité d'humidité présente dans le logement (10) avant le scellement final. Il est également question d'une méthode d'assemblage et de scellement de ce dispositif (10).

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