Electro-acoustic converters, electronic devices, waterproof covers, and air leakage test methods for electro-acoustic converters
AssigneeW. L. Gore & Associates, Inc.
InventorShigeharu Murayama
Life of this patent
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Abstract
It is an object to provide an electro-acoustic converter which can be subjected to air leakage test allowing a gas to pass through a waterproof film in such a condition that the waterproof film is attached to the electro-acoustic converter. An electro-acoustic converter is produced, which includes: a casing having a sound hole; and a diaphragm provided in the casing, wherein the sound hole is covered with the waterproof film to form a closed space, and the closed space is in communication with the outside of the casing through a vent for air leakage test.
Claims10
An electro-acoustic converter comprising:
- a casing having at least one sound hole and a vent in the casing;
- a diaphragm provided in the casing;
- a frame attached to the casing and having a sound opening aligned with the at least one sound hole and a frame opening aligned with the vent in the casing;
- and
- a waterproof film disposed in the frame and covering the sound hole of the casing, wherein the waterproof film has a film opening aligned with both the frame opening and the vent in the casing.
An electronic device comprising:
- an outer casing having a concave portion;
- and
- an electro-acoustic converter disposed in the concave portion of the outer casing, the electro-acoustic converter comprising:
- a casing having at least one sound hole and a vent in the casing;
- a diaphragm provided in the casing;
- a frame attached to the casing and having a sound opening aligned with the at least one sound hole and a frame opening aligned with the vent in the casing;
- and
- a waterproof film disposed in the frame and covering the sound hole of the casing, wherein the waterproof film has a film opening aligned with both the frame opening and the vent in the casing.
Dependencies are inferred from the claim text.