Patent ID: 8771014
Filing Date: 2014-07-08
Classification: H01R

Abstract:
1. A connector housing with a mat seal, comprising: a connector housing, made of hard resin, and including a tubular-like hood having a front end being open, and a rear wall provided to block a back opening of the hood, the rear wall having a plurality of terminal insertion holes whereby terminals are respectively inserted from a back side are provided; and a mat seal integrally formed with a front surface of the rear wall, by arranging a front mold and a back mold so that the rear wall is disposed both inside and outside the hood of the connector housing, and injecting silicone gum forming material from a gate which is provided at the back mold into a seal forming cavity, wherein the seal forming cavity is disposed between the rear wall and the front mold, wherein through holes are formed in the mat seal, configured to respectively communicate with the terminal insertion holes of the rear wall of the connector housing, wherein annular seal lips are formed on internal circumferences of the through holes respectively, configured to tightly fit to outer circumferences of electric wires extending backwards from the terminals being inserted inside the connector housing by passing through the terminal insertion holes and the through holes, wherein, at an outer surface of the rear wall of the connector housing, a plurality of passages for the silicone gum forming material, the plurality of passages being separated from each other, are provided outside an area where the plurality of terminal insertion holes are formed, wherein, on the outer surface of the rear wall of the connector housing and outside the passages for the silicone gum forming material, an annular rib is protruded and surrounds an area inside the annular rib, and