Waterproof membrane assembly and electronic device including the same

An electronic device comprising:

• a plate comprising an inner surface which is exposed to an internal space of the electronic device and in which a recess of the plate is defined;
• a circuit board facing the inner surface of the plate, the circuit board comprising a first surface and a second surface which is opposite to the first surface of the circuit board and faces the recess of the plate;
• an audio module on the first surface of the circuit board;
• a sealing member on the second surface of the circuit board;
• and
• a waterproof member which is on the inner surface of the plate and is configured to be assembled with the sealing member,
• wherein the sealing member which is assembled with the waterproof member includes the sealing member and the waterproof member partially accommodated in the recess of the plate.

An electronic device comprising:

• a plate comprising an inner surface which is exposed to an internal space of the electronic device and in which a recess of the plate is defined;
• a circuit board facing the inner surface of the plate, the circuit board comprising a first surface and a second surface which is opposite to the first surface of the circuit board and faces the recess of the plate;
• an audio module on the first surface of the circuit board;
• and
• a waterproof membrane assembly partially accommodated in the recess of the plate,
• wherein the waterproof membrane assembly includes:
• a first sub-assembly on the second surface of the circuit board, the first sub-assembly including a first adhesive member and a first elastic member;
• and
• a second sub-assembly which is in the recess of the plate and configured to be assembled with the first sub-assembly, the second sub-assembly including a second adhesive member, a second elastic member, and a waterproof breathable membrane, and
• wherein
• the first sub-assembly which is un-assembled with the second sub-assembly includes an outer surface of the first sub-assembly which faces an outer surface of the second sub-assembly, and
• the outer surface of one of the first sub-assembly and the second sub-assembly is defined by a reinforcement layer.