[Object] To provide a fluid control apparatus having a diaphragm structure and small flow path resistance. [Solving Means] A fluid control apparatus according to the present technology includes a first space, two flat plate members, a drive mechanism, a second space, a first check valve, and a second check valve. The first space has an inlet and an outlet. The two flat plate members face each other via the first space, and at least one of the flat plate members is an elastic body having flexibility. The drive mechanism bends the elastic body. The second space adjoins the first space, communicates with the first space via the inlet, and has a suction port. The first check valve allows fluid to flow from the suction port to the first space via the inlet. The third space adjoins the first space, communicates with the first space via the outlet, and has a discharge port. The second check valve allows the fluid to flow from the first space to the discharge port via the outlet. At least one of the suction port and the discharge port is positioned on an extension surface of at least one of the two flat plate members.

Described is a human-ear-wearable apparatus having a housing, which contains electronic and auditory components for conveying sound into a human hear. An inflatable mounting system is configured to secure the housing to the human ear. The mounting system includes an elastomeric bladder configured to inflate into a customizable counterpart shape of portions of the user's Concha and Meatus areas of a particular user's ear. A pump, coupled to the housing, is configured to pass air through an opening in the housing to the elastomeric bladder. Inflation of the bladder, via the pump, is controllable by a user to form a customized fit of the mounting system's bladder to the Concha and Meatus areas of the user's ear. One or more speakers may be encased in the elastomeric bladder. For example, a dual-hybrid speaker arrangement is described with a cone speaker and a balanced-armature driver embedded in the bladder.

A miniature vacuum pump includes a collection and exhaust chamber, a driving motor, and a vacuum breaking assembly including an inlet hole extending through a bottom wall of the collection and exhaust chamber, a pressure plate movably fitting about the output shaft located in the collection and exhaust chamber and flexibly covering the inlet hole, a rotation member coaxially and fixedly mounted to the output shaft and located at a side of the pressure plate opposite to the bottom wall and forming a rotation frame, and a centrifugal swing rod rotatably mounted to the rotation frame through a rotation shaft perpendicular to the output shaft. A center of gravity of the centrifugal swing rod is set at an end away from the rotation member, and an opposite end of the centrifugal swing rod is bent and extended to form a pressing portion for abutting against the pressure plate.

A miniature vacuum pump includes a collection and exhaust chamber, a driving motor, and a vacuum breaking assembly including an inlet hole extending through a bottom wall of the collection and exhaust chamber, a pressure plate movably fitting about the output shaft located in the collection and exhaust chamber and flexibly covering the inlet hole, a rotation member coaxially and fixedly mounted to the output shaft and located at a side of the pressure plate opposite to the bottom wall and forming a rotation frame, and a centrifugal swing rod rotatably mounted to the rotation frame through a rotation shaft perpendicular to the output shaft. A center of gravity of the centrifugal swing rod is set at an end away from the rotation member, and an opposite end of the centrifugal swing rod is bent and extended to form a pressing portion for abutting against the pressure plate.

A diaphragm pump includes a discharge chamber, a diaphragm configured to be actuated by a pulsation pressure, a fuel flow path fluidly coupled with the discharge chamber, and a fuel chamber located on the fuel flow path. The diaphragm includes a diaphragm actuating portion forming a part of the discharge chamber, and configured to suction fuel into the discharge chamber and to discharge the fuel from the discharge chamber in response to being actuated by the pulsation pressure, and a valve actuating portion located in the fuel chamber and configured to selectively open and close the fuel flow path.