Patent ID: 7753738
Filing Date: 2010-07-13
Classification: H01R

Abstract:
1. An audio jack for receiving a mating plug, comprising: an insulative housing defining a longitudinal plug-insertion hole; a set of contacts assembled to the insulative housing and including a stationary contact and a movable contact, the stationary contact defining a plate portion, the movable contact having a lateral beam located proximate to the plate portion; and an anti-dust dome member disposed between the stationary contact and the movable contact, said anti-dust dome member including a first insulative sheet attached onto the plate portion and defining an opening, a middle conductive dome sheet shaped to cover the opening of the first insulative sheet, and a second conductive sheet attached on the first insulative sheet to cover the middle conductive dome sheet and contacting the lateral beam of the movable contact, wherein the first insulative sheet is configured to isolate an electrical connection between the second conductive sheet and the stationary contact; wherein said middle conductive dome sheet is constantly actuated to establish an electrical connection between the second conductive sheet and the plate portion of the stationary contact.