9 results about "Diaphragm Part" patented technology

A needle closure system for injecting hot and cold moulding compounds into cavities of moulds through injection points which can be closed and opened by a needle, the needles being moved by a hydraulically or pneumatically actuated cylinder, the cylinder having a diaphragm part which is elastic.

An example pressure sensor includes a die. The die includes at least one lateral segment and a diaphragm extending between opposing portions of the lateral segment. The lateral segment and the diaphragm define a top surface, and the lateral segment defines a bottom surface opposite to the top surface. The lateral segment and the diaphragm partially define a first cavity. The pressure sensor further includes a top glass layer positioned adjacent to a portion of the top surface. The top glass layer partially defines a second cavity adjacent to the diaphragm. The pressure sensor also includes a polysilicon layer between the top glass layer and the corresponding portion of the top surface. The polysilicon layer couples the top glass layer to the die.

An adjustable diaphragm is disclosed. At least one light-shielding blade is movably fixed through cooperation of a blade supporting ring and a blade driving ring, an electromagnetic driving assembly drives, by using Lorentz force between driving magnet and a driving coil, a driving rod to rotate relative to a base, and the driving rod is slidably connected to the blade driving ring, to drive the blade driving ring to rotate, thereby driving, by using the blade driving ring, the light-shielding blade to rotate to block or expose a lens of a camera module. In this way, a diaphragm part and the electromagnetic driving assembly are separated from the lens, a counterweight of the camera module can be optimized, and a burden on an autofocus mechanism is reduced. In the present disclosure, a camera module and an electronic device are further disclosed.

The utility model discloses a vibrating diaphragm, electrostatic ultrasonic transducer and electronic equipment, the vibrating diaphragm comprises a central diaphragm part and a thinning part, the thinning part is located at the edge of the central diaphragm part, the thickness of the thinning part is smaller than that of the central diaphragm part, part of the position of the thinning part is fixed, and the rest part and the central diaphragm part integrally vibrate and produce sound. According to the utility model, by optimizing the structural design of the electrostatic film ultrasonic transducer, the effective vibration area proportion of the vibrating diaphragm is improved, and the sound pressure level of the electrostatic film ultrasonic transducer is further improved.

A gas chromatograph mass spectrometry system (1) is provided with: a column (20) that separates components contained in a sample gas; a mass spectrometer (30) that analyzes the sample gas by ionizing the gas that has passed through the column (20) in a vacuum state; and a switching device (40) that has a first microvalve (200) disposed at a connection portion between the column (20) and the mass spectrometer (30). The first microvalve (200) is provided with: a base part (220) in which an inflow port (223) and an outflow port (224) are formed; and a diaphragm part (230) that is disposed facing the base part (220) and switches, by elastically deforming, between communicating and blocking between the inflow port (223) and the outflow port (224).

Needle valve system for injecting hot and cold molding compounds into cavities of molds through injection points that can be closed and opened with a needle, wherein the needles are moved by a hydraulically or pneumatically actuated cylinder, the cylinder having a diaphragm part that is elastic.

Provides is a pressure sensor element with which it is possible to suppress a reduction in the sensitivity of pressure detection. This pressure sensor element includes: a membrane layer having a diaphragm part; and a plurality of electrode parts facing the membrane layer in the thickness direction. The diaphragm part includes a first conductive layer and a second conductive layer electrically insulated from the first conductive layer. The plurality of electrode parts are separated from each other. Each electrode part includes: a support part supported by the first conductive layer; and a movable part that is supported by the first conductive layer via the support part, is spaced apart from and faces the second conductive layer in the thickness direction, and moves due to deflection of the diaphragm part. When viewed along the thickness direction, each support part is located at a position outside both the center of the diaphragm part in the longitudinal direction and the center of the diaphragm part in the lateral direction, and has an elongated shape in the longitudinal direction of the diaphragm part.

The flow-limiting non-return device comprises a main body and a flow-limiting piece, the main body comprises a flow channel, the flow channel comprises a water inlet and a water outlet, the water passing area of the flow channel is gradually reduced in the water inlet direction, and the flow-limiting piece is arranged in the flow channel and comprises a diaphragm part and a shaft part capable of elastically deforming in the water inlet direction. The diaphragm part is arranged at the end, close to the water inlet, of the shaft part and comprises a bendable skirt edge, water flow can flow into the flow channel from the water inlet to impact the diaphragm part so that the skirt edge can be bent in the direction opposite to the water inlet, the shaft part can be deformed and compressed, the diaphragm part can move in the direction away from the water inlet, and the diaphragm part is matched with the gradually-shrunk flow channel to achieve flow limiting. When water flows into the flow channel from the water outlet, the diaphragm part can be impacted to enable the skirt edge to seal the flow channel. According to the current-limiting non-return device, the current-limiting non-return function can be achieved only through one current-limiting piece, multiple parts do not need to be used in cooperation, and the current-limiting non-return device is simple in structure and convenient and fast to assemble.

A speak includes a housing, a diaphragm, a first vibrating assembly, and a second vibrating assembly. The housing has an accommodating groove. The diaphragm is relatively arranged in the accommodating groove. The diaphragm includes a first diaphragm part and a second diaphragm part. The second diaphragm part is arranged around the first diaphragm part. The first vibrating assembly is arranged on the first diaphragm part, for driving the first diaphragm part. A movable space is formed between the first diaphragm part and the bottom of the accommodating groove. The second vibrating assembly is on the peripheral side of the movable space. The first vibrating assembly vibrating through piezoelectric means.