Receiver Having Pressure Equilibrium Structure

A receiver having a pressure equilibrium structure, the receiver comprising:

• a cylindrical frame having a gap configured to accommodate a component;
• a yoke partitioning an internal space of the frame vertically and including a bottom surface, a cylindrical portion bent from the bottom surface, a flange portion formed on an outer circumference of the cylindrical portion, and a communication hole formed by removing a portion of the flange portion;
• a first speaker unit installed above the yoke and including a first permanent magnet, a first plate, a first voice coil, and a first diaphragm;
• a second speaker unit installed below the yoke and including a second permanent magnet, a second plate, a second voice coil, and a second diaphragm;
• a first protector coupled to an upper surface and a side surface of the frame and protecting the first speaker unit;
• and
• an air path formed by removing portions of the upper surface and the side surface of the frame to have a gap from the first protector,
• wherein the first protector has a pressure equilibrium hole communicating with the air path.

A receiver having a pressure equilibrium structure, the receiver comprising:

• a cylindrical frame having a gap configured to accommodate a component;
• a yoke partitioning an internal space of the frame vertically and including a bottom surface, a cylindrical portion bent from the bottom surface, a flange portion formed on an outer circumference of the cylindrical portion, and a communication hole formed by removing a portion of the flange portion;
• a first speaker unit installed above the yoke and including a first permanent magnet, a first plate, a first voice coil, and a first diaphragm;
• a second speaker unit installed below the yoke and including a second permanent magnet, a second plate, a second voice coil, and a second diaphragm;
• a first protector coupled to an upper surface and a side surface of the frame and including a sound emission hole protecting the first speaker unit and configured to emit sound and a pressure equilibrium hole formed by removing a portion of a sidewall to a lower end;
• and
• an air path having a gap with the first protector by removing portions of the upper surface and the side surface of the frame, and extending from the sound emission hole to the pressure equilibrium hole.