Abstract: An electrostatic protector used in a portable electronic device includes an electrostatic conducting unit and an electrostatic protecting unit connected to the electrostatic conducting unit. The electrostatic protecting unit includes at least one protecting circuit, each protecting circuit includes a diode, and the diode has a cathode connected to the electrostatic conducting unit and an anode grounded. Electrostatic charges on the portable electronic device are transmitted to the electrostatic conducting unit and generate a voltage on the cathode of the diode to break down the diode, such that the electrostatic charges are transmitted to the ground via the broken down diode and the voltage on the cathode of the diode is reduced.

Abstract: A volume control device used in a portable electronic device includes an input unit, an adjustment unit connected to the input unit; and an output unit connected to the adjustment unit. The input unit receives transmitted communication signals or audio signals of audio files played by the portable electronic device and transmits the audio signals to the adjustment unit, the adjustment unit automatically adjusts the voltages of the audio signals to a predetermined adjusted voltage range and transmits the adjusted audio signals to the output unit, and the output unit automatically adjusts the voltage of the audio signals transmitted from the adjustment unit to a selected broadcast voltage range and broadcasts the audio signals.

Abstract: A portable electronic device includes a main power supply, a power management unit (PMU) connected to the main power supply, and a receiver unit connected to the PMU. The main power supply supplies electric power to the portable electronic device through the PMU. The receiver unit includes a processor module connected to the PMU. The processor module stores a lock code, the processor module directs the PMU to prevent the main power supply from providing electric power to the portable electronic device when the receiver unit receives wireless signals corresponding to the lock code.

Abstract: A heat source recycling unit includes at least one heat removing device, a heat source conversion device and a heat preservation box. The heat removing device includes a heat inlet end connects with the pre-recycling heat source and, a heat outlet end connects with the heat source conversion device. The heat preservation box includes a heat preservation room and a refrigeration room. The heat source conversion device converts the received heat energy into heat energy and cold energy, and then transmits them to the heat preservation room and the refrigeration room respectively. The invention also provides a heat source recycling system.

Abstract: A display screen window assembly includes a display screen window and a photo catalyst layer. The display screen window has an outer surface. The photo catalyst layer is disposed on the outer surface of the display screen window, thus the outer surface of the display window assembly has hydrophilic and decomposing functions. The photo catalyst layer may set off chemical reaction with the water molecule and oxygen molecule under emission of light to prevent the water and foreign materials from forming on or sticking to the outer surface of the display screen window.

Abstract: A portable electronic device includes a short distance wireless communicating module and a warning unit. The short distance wireless communicating module is used to establish short distance wireless communicating network with another portable electronic device and monitor whether the other portable electronic device is out of wireless network range. The warning unit electrically connects with a short distance wireless communicating module to send out an alarm if the portable electronic device is out of wireless network range.

Abstract: An exemplary mobile terminal searching system includes a base station, a locating terminal, and target terminal. The base station includes a controlling unit, a signal communicating unit, a storage unit, and a positioning unit. The locating terminal is configured for setting searched phone numbers and sending the searched phone numbers to the base station via the signal communicating unit. The signal storage unit is configured for storing the searched phone numbers controlled by the controlling unit. The positioning unit is configured for determining the position information of the target terminal, and the position information is sent to the locating terminal via the signal communicating unit.

Abstract: A portable electronic device includes a transmitting unit and a receiving unit separate from the transmitting unit. The receiving unit can communicate with the transmitting unit within a predetermined work distance, and generate an alarming signal when the transmitting unit is outside of the predetermined work distance.

Abstract: A battery discharge circuit, used to couple a battery to an electronic device, includes a battery protecting module and a voltage adjusting module. The battery protecting module detects an output voltage of the battery, compares the output voltage with an end voltage of the battery, and selectively discharges the battery or not in response to the comparison result. The voltage adjusting module compares the output voltage with a work voltage of the electronic device, and selectively directly outputs the output voltage or boosts the output voltage first and then outputs the boosted output voltage.

Abstract: A charging device includes an electric energy generating module and a voltage regulating module electrically connected to the electric energy generating module and a battery. The electric energy generating module is configured for collecting and converting heat energy into electric energy, and outputting an voltage. The voltage regulating module receives the electric energy and regulates the output voltage of the electric energy into a stable voltage, and then the electric energy is outputted to charge the battery.

Abstract: A portable electronic device includes a circuit board and at least one treatment element mounted adjacent to the circuit board and storing volatile maintaining matters therein. The circuit board generates heat when the portable electronic device is working to heat the treatment element, and then the maintaining matters volatilize to maintain the portable electronic device.

Abstract: A shielding assembly (10) for electronic device is provided. The shielding assembly (10) comprises a plastic layer (12), a metal foil (16) mounted to the plastic layer (12), and a coolant (14) is formed between the plastic layer (12) and the metal foil (16). An electronic device using the shielding assembly is also provided.