Abstract: The application provides a driving circuit. The circuit includes: a segment display, including a plurality of light-emitting units; a controller, configured to generate a control instruction for the segment display according to a configuration signal; a digital driver, connected to the controller, and configured to generate a pulse driving signal according to the control instruction from the controller; and an amplification circuit, with one end being connected to the digital driver and the other end being connected to the plurality of light-emitting units of the segment display. The application also provides a magnetic sensing circuit and an electrical device. The magnetic sensing circuit includes a magnetic sensor, a sensing selection circuit, and a result representation circuit. A plurality of magnetic sensors are provided, and at least some of the plurality of magnetic sensors are capable of being connected to the sensing selection circuit by a sensing output terminal.

Abstract: The application provides a driving circuit. The circuit includes: a segment display, including a plurality of light-emitting units; a controller, configured to generate a control instruction for the segment display according to a configuration signal; a digital driver, connected to the controller, and configured to generate a pulse driving signal according to the control instruction from the controller; and an amplification circuit, with one end being connected to the digital driver and the other end being connected to the plurality of light-emitting units of the segment display. The application also provides a magnetic sensing circuit and an electrical device. The magnetic sensing circuit includes a magnetic sensor, a sensing selection circuit, and a result representation circuit. A plurality of magnetic sensors are provided, and at least some of the plurality of magnetic sensors are capable of being connected to the sensing selection circuit by a sensing output terminal.

Abstract: The application provides a gear control circuit and system for an alternating current motor. The gear control circuit includes: a plurality of controllable switches; a detection unit, configured to detect switching statuses corresponding to the controllable switches; a gear input unit, configured to receive a target gear m inputted from outside; and a control unit, connected to the gear input unit and configured to obtain the target gear m. The application also provides a switch controller and an electronic device. The switch controller includes a signal modulation circuit, a signal follower circuit, a comparison circuit, and a switch control circuit. The switch controller may perform digital-to-analog conversion by using the signal modulation circuit, to modulate a first PWM signal being a digital signal into a second PWM signal being an analog signal, and then the signal follower circuit performs load amplification on the modulated second PWM signal.

Abstract: The application provides a dust collecting mechanism, a car air purifier and a fan, and relates to the technical field of air purification. The dust collecting mechanism includes a generator assembly including a generator holder, a generator plate and a generator filament, the generator plate and the generator filament being arranged in a spaced and staggered manner inside the generator holder; a collector assembly including a collector holder, a repeller plate and a collector plate, the repeller plate and the collector plate being arranged in a spaced and staggered manner inside the collector holder. The generator holder is detachably connected with the collector holder, and the collector plate is connected and conducted with the generator filament through magnetic adsorption, so that they can be connected to the power supply together, thereby enabling wireless conduction between the collector assembly and the generator assembly, simplifying the circuit structure.

Abstract: The present application provide an air purifier and a cleaning method for same The air purifier includes: a housing, which is provided with an air inlet and an air outlet and a detachable door panel; a protective cover, which is detachably disposed on an inner wall of the housing and opposite to the door panel, and located between the air inlet and the air outlet; and an electrostatic filter element, which includes an emission assembly and a collection assembly, the emission assembly and the collection assembly are detachably disposed in the protective cover, the emission assembly is located at a side of the collection assembly close to the air inlet. The detachable protective cover is provided to facilitate washing and protect the housing. The emission assembly and the collection assembly are detachably mounted in the protective cover, so that they can be separately cleaned.

Abstract: A base body of a dust collector includes a pedestal, and partition plates arranged on the pedestal. The partition plates are made of insulating materials. A plurality of baffle partition plates are arranged in a length direction of the pedestal at intervals. A slot for inserting electrode sheets is formed between the adjacent partition plates. The dust collector includes the base, and further includes a collector electrode sheet and a discharging electrode sheet.

Abstract: A base body of a dust collector includes a pedestal, and partition plates arranged on the pedestal. The partition plates are made of insulating materials. A plurality of baffle partition plates are arranged in a length direction of the pedestal at intervals. A slot for inserting electrode sheets is formed between the adjacent partition plates. The dust collector includes the base, and further includes a collector electrode sheet and a discharging electrode sheet.

Abstract: An easy-to-clean separable purification core for an air purifier includes an inner cavity lining body, a collector module and a repeller module that are detachably inserted one in the other. The collector module includes a first collector cell and a second collector cell that are nested from top to bottom and are detachable with respect to each other, the two collector cells match each other in shape and dimension size and are respectively provided with collector pieces parallel to each other, and the spacing between two adjacent collector pieces in each collector cell is four times of an original spacing. In an assembly state of the purification core, the collector module, the repeller module, and the inner cavity lining body are nested one in another to form an integral component.

Abstract: An air cleaning apparatus includes ion generation electrode, a collecting electrode, and a support portion. The ion generation electrode is configured to apply a high-voltage to thereby form a high-voltage electric field between the collecting electrode and the ion generation electrode. A passage is formed between the ion generation electrode and the collecting electrode along the high-voltage electric field direction. The support portion is configured to provide electrical isolation and mechanical support for the ion generation electrode and the collecting electrode. A surface of the support portion between the ion generation electrode and the collecting electrode comprises a surface coating layer configured to resist ion bombardment and the accidental arcing. A transformer frequency adjusting system includes a frequency storage cell, a control module, and a drive module, and can work with the air cleaning apparatus, alone, or with other apparatuses.

Abstract: A cone shaped docking and releasing mechanism provides rigid connection between a parent UAV and a sub UAV to form a spliced double unmanned aerial vehicle system with improved cruising duration ability by providing sub UAV battery with charging function. It comprises a parent UAV, a sub UAV and a docking mechanism with charging ports. The parent UAV and the sub UAV are connected with each other through the docking mechanism to form a double UAV system, the docking mechanism is a cone structure and comprises a charging output component connected with the parent UAV internal control system, a charging circuit connected with a sub UAV control system and a charging input component connected with the charging circuit.

Abstract: An ionic wind purifier is described. The ionic wind purifier includes a generating electrode and a collecting electrode, which are arranged oppositely. A potential difference exists between the generating electrode and the collecting electrode, and at least one first projecting part is arranged on each collecting electrode plate of the collecting electrode. The first projecting part has a smooth surface. Thus, by arranging the first projecting part, the adsorption area of the collecting electrode is increased and the absorption capability of the collecting electrode is improved, thereby improving the purification efficiency of the ionic wind purifier and improving the use performance thereof. A discharge monitoring and protective circuit of a high-voltage ion purifier is also described.

Abstract: A high-voltage protection device for an ionic wind purifier is described, which includes a micro switch (1) and a contact point (2) matching with the micro switch (1). The micro switch (1) and the contact point (2) are connected in series on a main circuit. Either the micro switch (1) or the contact point (2) is located on an inner side of a door cover (2) of the ionic wind purifier and the other one is located on a contact part of a main body and the door cover (3). The high-voltage protection device can automatically cut off a power source when a door of the ionic wind purifier is opened, so as to ensure the safety of a user. An ionic wind purifier including the high-voltage protection device is also described.

Abstract: An ionic wind purifier is described. The ionic wind purifier includes a generating electrode and a collecting electrode, which are arranged oppositely. A potential difference exists between the generating electrode and the collecting electrode, and at least one first projecting part is arranged on each collecting electrode plate of the collecting electrode. The first projecting part has a smooth surface. Thus, by arranging the first projecting part, the adsorption area of the collecting electrode is increased and the absorption capability of the collecting electrode is improved, thereby improving the purification efficiency of the ionic wind purifier and improving the use performance thereof. A discharge monitoring and protective circuit of a high-voltage ion purifier is also described.

Abstract: Described is an ion air purifier. The ion air purifier includes a collector module (1) and a repeller module (2) which are connected in an openable and closable manner, wherein several collector plates (11) are uniformly distributed on the collector module (1), and several repeller plates (21) are uniformly distributed on the repeller module (2); and each collector plate (11) and each repeller plate (21) are alternately arranged when the two plates are in a closed state. Thus, an optimized distance between adjacent collector plates (11) and repeller plates (21) is ensured; and when the collector module (1) and the repeller module (2) are in an opened state, the collector plates (11) are separated from the repeller plates (21), and the distance between two adjacent collector plates (11) and the distance between two adjacent repeller plates (21) are both increased, thereby facilitating cleaning of the collector module. Further described is a network air purifier.

Abstract: Provided are a gas purification device and system. The device comprises a gas purification unit; the gas purification unit comprises at least one ionization electrode, at least one repelling electrode and at least one collector; the at least one repelling electrode is provided with electrical potential in the same direction as the electrical potential of the at least one ionization electrode; in the at least one collector is provided with either zero potential or electrical potential in an opposite direction compared with the electrical potential of the at least one ionization electrode; the at least one repelling electrode is used to push the electrified gas particles ionized by the at least one ionization electrode to the at least one collector.

Abstract: An air cleaning apparatus includes ion generation electrode, a collecting electrode, and a support portion. The ion generation electrode is configured to apply a high-voltage to thereby form a high-voltage electric field between the collecting electrode and the ion generation electrode. A passage is formed between the ion generation electrode and the collecting electrode along the high-voltage electric field direction. The support portion is configured to provide electrical isolation and mechanical support for the ion generation electrode and the collecting electrode. A surface of the support portion between the ion generation electrode and the collecting electrode comprises a surface coating layer configured to resist ion bombardment and the accidental arcing. A transformer frequency adjusting system includes a frequency storage cell, a control module, and a drive module, and can work with the air cleaning apparatus, alone, or with other apparatuses.