Hon Hai Precision Industry Co., Ltd.

Hong-fu Jin Precision Industry (shenzhen) Co., Ltd.

Aac Technologies Pte. Ltd.

Shenzhen Treasure City Technology Co., Ltd.

Zte Corporation

Wei Pang

Jun-Hui Wang

Al-Ling He

Kun Li

Xiaojiang Gu

Hui Li

Guqing Zhang

Yuan Jiang

Yiming Meng

Wan-Li Ning

Yunxia Xu

Cheng-Fei Weng

Wei Cheng

Song Ma

Liangzhen Du

Hailong Sun

The present disclosure provides a sound generating device, which includes a frame, a vibration system, and a magnetic circuit system. The vibration system includes a membrane and a dome. The membrane includes a vibrating part, a suspension, a fixing part, and a first through hole, the frame, the membrane, and the magnetic circuit system form an inner sound cavity communicated with the first through hole. The dome is fixed to the vibrating part, and includes a first body layer, a second body layer, and an air-permeable isolating piece sandwiched between the first body layer and the second body layer. The first body layer defines a second through hole communicating with the first through hole, the second body layer defines a third through hole communicating with the second through hole. The air-permeable isolating piece covers the second through hole and the third through hole.

Sound generating device

The present disclosure provides a sound generating device, which includes a frame, a vibration system, and a magnetic circuit system. The vibration system includes a membrane, a dome, and an air-permeable isolating piece. The membrane is fixed to the frame and configured to define an inner sound generating cavity together with the frame and the magnetic circuit system. The vibrating membrane includes a vibrating part, a suspension, and a fixing part, the vibrating part defining a first through hole communicated with the inner sound generating cavity. The dome is attached to a side of the vibrating part, and the dome defines a second through hole communicating with the first through hole. The air-permeable isolating piece is attached to a side of the dome, and a side of the air-permeable isolating piece is sunken to form a leakage groove communicating with the second through hole.

An electro-acoustic device is provided, including a frame; a magnetic circuit received in the frame and including a lower plate fixed on a bottom of the frame and a magnet attached on the lower plate; a vibration system received in the frame and including a vibrating diaphragm attached to a top of the frame; a cavity formed cooperatively by the lower plate, the frame and the vibrating diaphragm; a leak hole provided between the frame and the lower plate for communicating with outside of the electro-acoustic device; and a damper attached to the lower plate and located inside of the electro-acoustic device for covering the leak hole internally.

Electro-acoustic device

A wind charger set on a circuit board for powering a button cell held by a holder set on the circuit board. The wind charger includes a bracket attached to the holder, a wind turbine fixed on the bracket and a charge circuit. The charge circuit is set on the circuit board. The wind turbine transfers airflow created by a heat-dissipating device set on the circuit board into electricity for powering the charge circuit, which charges the button cell.

Wind charger

A mounting apparatus for a solid state disk includes a bracket and a latching module. The bracket includes a connecting pole and a supporting member mounted to the connecting pole. The latching module is installed to the supporting member, and comprises a latching member. The supporting member includes a position pole mounted to the connecting pole and a supporting bar perpendicularly extending out from the position pole. The position pole defines a latching slot facing the supporting bar for positioning an end of the solid state disk. The supporting bar defines a guiding slot facing the latching slot for receiving a side of the solid state disk. The latching member is to latch onto the solid state disk.

Electronic device with mounting apparatus for solid state disk

A memory card includes a control chip, a buffer, a NAND gate, and an inverter. The memory card has a first surface and a second surface opposite to the first surface. A first group of conductive pins is located on the first surface, and connected to the buffer through a first channel. A second group of conductive pins is located on the second surface, and connected to the buffer through a second channel. An order of pins of the first group of conductive pins located on the first surface from left to right is the same as an order of pins of the second group of conductive pins located on the second. The buffer is electrically connected to the control chip. Data can be transmitted between the first group of conductive pins or the second group of conductive pins and the control chip through the buffer.

Memory card for storing and transmitting data

A device for mounting a riser card includes a base board forming two rods, a motherboard forming an expansion slot to connect the riser card, and a fixing member having two legs at opposite ends. The rods extend through the motherboard and are positioned at opposite ends of the expansion slot. Each rod contains a resilient member inside, and a ball mounted to the resilient member and partly extending out of the rod. The riser card is fixed to the fixing member. Each leg defines a cylindrical hole fitted about one of the rods. The balls partly extend out of the corresponding rods and block tops of the corresponding legs.

Mounting device for riser card

A mounting apparatus includes a chassis, a bracket, and two resilient plates. The chassis includes two opposite sidewalls. A protrusion and a hook protrude from an inner surface of each sidewall. The bracket includes a fixing plate for mounting a number of fans, and two end plates. Each end plate defines a first slot, a second slot, a first notch communicating with a bottom of the first slot, and a second notch communicating with a bottom of the second slot. The resilient plates are mounted to inner surfaces of the end plates. Each resilient plate defines a hooking hole overlapping one of the second slots. The protrusions extend through the first notches and engage in the first slots. The hooks extend through the second notches and engage in the second slots and the hooking holes, to lock the bracket to the chassis.

Mounting apparatus for fans

A mounting apparatus for a hard disk drive includes a bracket and a resilient plate. The bracket includes a first and a second side plates each defining two slanted first notches, and two first slots respectively extending from rear ends of the first notches. The resilient plate is slidably mounted to the first side plate. A front end of the resilient plate defines a slanted second notch, and a semicircular second slot extending from a rear end of the second notch. When the resilient plate is at a first position, the second notch and the second slot respectively align with one of the first notches and a corresponding first slot of the first side plate. When the resilient plate is slid to a second position, the second slot aligns with a rear end of said corresponding first slot, and the second notch is staggered from the corresponding first notch.

Mounting apparatus for hard disk drive

A sequential voltage output circuit is connected between a power supply and a number of loads. The voltage sequence output circuit includes a complex programmable logic device (CPLD) and a number of switching circuits. When the CPLD receives a power on signal, the CPLD outputs a number of control signals sequentially through a number of outputs. When a switching circuit receives a control signal from the CPLD, the switching circuit allows the power supply to supply power to a corresponding load.

Growing community of inventors

Shenzhen, China

Wei Pang