Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

10 results about "Piezo switch" patented technology

A piezo switch is an electrical switch based on the piezoelectric effect. The charge generated by the piezoelectric element in the switch is typically used to turn on an integrated semiconductor device such as a field effect transistor (FET), causing the switch assembly's output to be active, or "on". When the FET is on, current can flow through it as with a conventional metal contact-based switch. After the voltage pulse is dissipated in the gate resistor, the FET turns back "off", its normal high impedance state. The piezoelectric effect is the generation of electric charge when certain materials are under stress. In the case of piezo switches, the force could be compressive pressure that causes the (typically disc-shaped) piezo element to bend very slightly like a drumhead.

Emergency window breaking fire extinguisher

The emergency window breaking fire extinguisher comprises a fire extinguishing rod shell, a piezoelectric switch support and a storage bin arranged in the fire extinguishing rod shell and used for containing a fire extinguishing agent, the fire extinguishing rod shell is a telescopic cylindrical shell, blocking covers for sealing are arranged at the two ends of the fire extinguishing rod shell, and a front blocking piece is arranged at one end of the storage bin; the functions of compact storage and rapid unfolding are achieved through the sealed blocking covers arranged at the two ends of the fire extinguishing rod shell, and the portability of the fire extinguishing rod is improved through the cooperation with the material storage bin capable of stretching and retracting in the axial direction. The sliding groove for mounting the piezoelectric switch is formed in the stepped shaft, and the gland is arranged at the other end of the stepped shaft, so that the piezoelectric switch can be conveniently mounted and adjusted; the sliding groove and the pressing cover are used in a combined mode, it is ensured that the piezoelectric switch can be stably fixed in the using process, accurate positioning of the piezoelectric switch is ensured, and displacement of the piezoelectric switch when the piezoelectric switch is vibrated or impacted is prevented.
Owner:SHENZHEN CHANGKE SAFETY EMERGENCY TECH CO LTD +1

Remote agricultural convenient pesticide blowing machine

A remote agricultural convenient pesticide blowing machine is characterized in that a liquid guide pipe and a lead are combined to form a composite hose for long-distance transfusion and power transmission, a fan-shaped nozzle is arranged in a flat elliptical pipe at the front part of an air conveying pipe to atomize pesticide liquid, and then the pesticide liquid is blown and sprayed by wind power again. An electric fan is arranged in a round pipe at the rear part of an air conveying device, a fan-shaped nozzle is arranged in a flat elliptical pipe at the front part of the air conveying device, a speed regulation button of the electric fan is arranged on a rear handle, a water valve switch is arranged on a front handle, and a guide pipe is connected with the water valve switch and the fan-shaped nozzle. The storage battery is electrically connected with a piezoelectric switch on the diaphragm pump, a wire of the composite hose is electrically connected with the storage battery and the electric fan, and a liquid conveying pipe of the composite hose is connected with a liquid supply port of the diaphragm pump and a water valve switch. During pesticide spraying, an operator holds the handle with hands, the output wind speed and pesticide liquid supply can be adjusted at any time, and the spraying efficiency is conveniently and flexibly improved.
Owner:范明合

A nitrate treatment apparatus with a flow regulating mechanism

This utility model discloses a nitrate treatment device with a flow regulation mechanism, relating to the field of chemical equipment technology. It includes a fixed pipe, an outlet pipe fixedly located at the middle of the outer side of the fixed pipe, an inlet bend fixedly located at the bottom end of the fixed pipe, a fixed seat fixedly located at the top end of the fixed pipe, and a mixing pipe fixedly located inside the fixed pipe. By configuring the fixed pipe, outlet pipe, inlet bend, and mixing pipe, when nitrate-containing wastewater passes through the mixing pipe, the wastewater pushes a piston upwards. The piston triggers a piezoelectric switch via a rod, causing the feed motor to rotate. The feed motor drives the movable sleeve to rotate, allowing the reducing agent in the storage chamber to be transported to the mixing pipe by the guide plate on the outside of the movable sleeve. The flow of nitrate-containing wastewater triggers the addition of the reducing agent, ensuring that the amount of reducing agent added is consistent with the amount of nitrate-containing wastewater discharged, thus achieving the effect of controlling the flow rate of the reducing agent.
Owner:BEIJING KEJIS ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD

Laser detection device

The utility model provides a laser detection device, the laser detection device comprises a detection host, a water machine, an electromagnetic flowmeter, a power meter and a QCS fixing device, the detection host is connected with the electromagnetic flowmeter, the power meter and the QCS fixing device, and the detection host comprises a signal interface for data interaction with a detected laser; the water machine, the electromagnetic flowmeter, the power meter and the tested laser are connected in series through a pipeline to form a water circulation path; the device comprises a QCS fixing device and a laser output device for fixing the tested laser, a piezoelectric switch is arranged on the QCS fixing device, and after the laser output device is fixed, the piezoelectric switch is closed. Therefore, the laser can be detected safely, comprehensively and efficiently.
Owner:SICHUAN STRONGEST LASER TECH CO LTD

Water ionizer

Disclosed herein are devices and methods relating to a water ionizer and using the water ionizer to treat pool water. The water ionizer includes a housing having a waterflow channel and electrode receptacle; and an electrode cartridge having a body and pair of electrodes. The electrode cartridge may be removably attached to the housing. The water ionizer is automatically activated by a piezo switch or vibration sensor that senses water flowing through the waterflow channel and between the pair of electrodes. The electrodes are charged causing ions to jump between electrodes. During the jump the ions are caught by the flowing water. The automatic activation / deactivation of the water ionizer allows a user to adjust the copper in the pool water to the ideal level of 0.3-0.5 PPM by adjusting the schedule of the pool's circulation system. The removability of the electrode cartridge allows the user to easily replace the electrodes.
Owner:MAIN ACCESS

Auxiliary power supply circuit of light-emitting panel

The utility model relates to an auxiliary power supply circuit of a light-emitting panel, which comprises a light-emitting panel body connected with a plurality of light-emitting loads and a power supply unit, the output end of the power supply unit is connected with the input ends of the light-emitting loads, the light-emitting panel body is connected with a piezoelectric switch, and the piezoelectric switch is connected with the light-emitting loads. A piezoelectric motor is connected to the lower portion of the light-emitting panel body, the piezoelectric switch is connected with the piezoelectric motor, the output end of the piezoelectric motor is connected with the input end of the rectification module, the output end of the rectification module is connected with the input end of the driving module, and the output end of the driving module is connected with the input end of the light-emitting load. According to the utility model, the safety of the whole circuit can be improved.
Owner:JIANGSU WEIXIN AVIATION TECH CO LTD

Display panel, display module and display device

The application relates to a display panel, a display module and a display device. The display panel comprises a color film substrate, an array substrate, a liquid crystal layer, a support assembly and a piezoelectric switch. The liquid crystal layer is arranged between the color film substrate and the array substrate. The support assembly comprises a spacer arranged in an array. The spacer has opposite first and second end faces in a direction perpendicular to the array substrate. The spacer is arranged on one side of the color film substrate close to the liquid crystal layer and in the liquid crystal layer through the first end face. The piezoelectric switch is arranged between the spacer and the array substrate. The piezoelectric switch comprises a piezoelectric layer, a first electrode and a second electrode. The second end face covers at least part of the piezoelectric layer in a perpendicular projection on the array substrate. The piezoelectric layer can conduct the first electrode and the second electrode to form a driving electric field. The scheme can directly adjust the angle of liquid crystal molecules during pressing and improve the display effect.
Owner:XIAMEN TIANMA MICRO ELECTRONICS

Motor for circuit breaker

The utility model belongs to the technical field of piezoelectric switch equipment, and particularly relates to a motor for a circuit breaker. Comprising a shell, a transmission mechanism is arranged on the shell, a power mechanism is fixedly connected to the shell, the transmission mechanism is in transmission connection with the power mechanism, the transmission mechanism comprises a transmission shaft, the transmission shaft is rotationally connected to the shell, and a heat dissipation mechanism corresponding to an input shaft is arranged on the shell. The transmission mechanism is in transmission connection with a driving mechanism, and the driving mechanism is in driving connection with the microswitch. The situation that a large amount of heat is generated by the output shaft in a high-speed rotation state, so that the shell is deformed, and the microswitch cannot be normally triggered to work is greatly reduced.
Owner:ZHEJIANG SHANGGUAN ELECTRIC CO LTD

Dehumidification device for boiler steam blowout pipeline

The utility model relates to a dehumidification device for a steam blowout pipeline of a boiler, and relates to the technical field of steam boilers. The utility model relates to a dehumidification device for a steam blowout pipeline of a boiler. A first pipeline is communicated with a safety valve; the top of the liquid accumulation tank is communicated with the first pipeline, an outlet is formed in the bottom of the liquid accumulation tank, a valve body is arranged at the outlet, a piezoelectric switch is further arranged in the liquid accumulation tank, and the piezoelectric switch is electrically connected with the valve body; the liquid level sensor is a lever type liquid level meter rotationally installed in the liquid accumulation tank, when the height of the liquid level in the liquid accumulation tank reaches or exceeds a threshold value height, the liquid level sensor rotates till the piezoelectric switch is pressed, the piezoelectric switch generates an electric signal to control the valve body to be opened, and the threshold value height is lower than the height of the first pipeline. When condensate water in the liquid accumulation tank rises, the piezoelectric switch is pressed through rotation of the liquid level sensor, so that the valve body is controlled to be opened to complete automatic drainage work, and the risk that the safety valve is corroded by the condensate water is reduced.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1