System for filling electrochromic mirror element

  • US 10,782,584 B2
  • Filed: 02/19/2018
  • Issued: 09/22/2020
  • Est. Priority Date: 11/18/2013
  • Status: Active Grant
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First Claim
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1. A system for filling a variable reflectance vehicular electrochromic rearview mirror reflective element, said system comprising:

  • a filling crucible;

    a compressible sealing element having a passageway therethrough;

    a fixture configured to support an unfilled mirror cell, wherein the unfilled mirror cell comprises a front glass substrate and a rear glass substrate joined by a perimeter seal, and wherein the perimeter seal spaces the front and rear glass substrates apart and establishes an interpane cavity therebetween, and wherein the perimeter seal has a gap between terminal ends of the perimeter seal to establish a fill port for the unfilled mirror cell;

    wherein said filling crucible comprises (i) a fluid reservoir configured to receive electrochromic fluid medium therein, (ii) a mirror cell receiving portion and (iii) a channel that provides fluid communication between said fluid reservoir and said mirror cell receiving portion;

    wherein said mirror cell receiving portion of said filling crucible is shaped to receive a perimeter portion of the unfilled mirror cell therein such that the fill port of the unfilled mirror cell is aligned with said channel of said filling crucible;

    wherein, with the unfilled mirror cell supported at said fixture, the fill port of the unfilled mirror cell is disposed at an upper perimeter portion of the unfilled mirror cell; and

    wherein, with the unfilled mirror cell supported at said fixture, said mirror cell receiving portion of said filling crucible receives the upper perimeter portion of the unfilled mirror cell with said compressible sealing element between said filling crucible and the unfilled mirror cell such that said filling crucible seals at the unfilled mirror cell around said fill port via said compressible sealing element.

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