Seal assembly for an in-ear and in-ear
An in-ear earphone including a housing having a first end for receiving a cable, and a second end which is placed in a concha of a user. Provided at the second end is a sealing unit which seals off an outer end of the ear canal in the region of the concha. The sealing unit has a first and a second end. The sealing unit further has a portion between the first and second ends, wherein both the inside diameter and also the outside diameter of the second end increase in the direction of the second end.
1. A sealing unit for an in-ear earphone comprising:
a first annular portion configured to fit onto the in-ear earphone; and
a second annular portion configured to be placed in a concha of a user;
wherein the first annular portion has a diameter of between 8 and 25 mm;
wherein the first annular portion and the second annular portion are peripherally connected together at an edge which is configured to surround a sound output region of a substantially flat sound output surface of the in-ear earphone when the sealing unit is fitted onto the in-ear earphone;
wherein the second annular portion is in the form of a peripherally extending sealing lip extending from the edge to a second end of the sealing unit;
wherein the sealing lip is made from a flexible material and configured so that, upon being fitted into the ear, it deforms so that it bears, in peripherally extending relationship with the second end, against the concha of a user so that the ear canal is sealed off at its outer end; and
wherein, when the sealing lip is not fitted into the ear, each of an inside diameter and an outside diameter of the sealing lip steadily increases as a distance relative to the sound output surface increases from the edge to the second end of the sealing unit.
2. The sealing unit as set forth in claim 1 ;
wherein a thickness of the second annular portion is between 0.1 mm and 0.5 mm.
3. The sealing unit as set forth in claim 1 ;
wherein an inside of the second annular portion forms an angle of between 100° and 170° with the sound output surface.
4. An in-ear earphone comprising:
a sealing unit as set forth in claim 1 .
5. The sealing unit as set forth in claim 2 ;
wherein an inside of the second annular portion forms an angle of between 100° and 170° with the sound output surface.
6. An in-ear earphone comprising:
a sealing unit as set forth in claim 2 .
7. An in-ear earphone comprising:
a sealing unit as set forth in claim 3 .