Abstract: The present invention discloses an ultrasonic atomizer and electronic cigarette. The ultrasonic atomizer includes an atomization piece and a liquid guide structure, which guides liquid onto an upper surface of the atomization piece; the liquid guide structure communicates with a liquid storage cavity; the upper surface of the atomization piece communicates with an airflow passage; and the atomization piece comprises a piezoelectric ceramic layer and an electric conductor, which drives vibration of the piezoelectric ceramic layer. No micropore needs to be provided in the atomization piece of the present invention to eject the atomized gas, thereby being free of the situation that the micropore is blocked by larger atomized gas particles, resulting in that the atomized gas cannot be ejected, and meanwhile the situation of liquid leakage of the atomizer can be better prevented.

Abstract: A signal source for electromagnetic interference test of display devices, comprising: a housing capable of attenuating an electromagnetic signal; a parameter receiving module located within the housing and configured to receive related parameters of a signal required for testing a display device; a signal generating module located within the housing and configured to generate a signal required for testing the display device in accordance with the parameters received by the parameter receiving module; and an output interface located on the housing and configured to output the signal generated by the signal generating module. Adopting this signal source to perform EMI test on display devices can eliminate the influence of the signal source, thus reduce the complexity of the test, and make the test become simple and efficient.

Abstract: This application provides a voltage control circuit, method and device, and a storage medium. The voltage control circuit includes: a controller and a voltage adjustment circuit both coupled to a power supply terminal for providing a power supply voltage. The controller is configured to: acquire a power supply voltage value at the power supply terminal; determine whether the acquired power supply voltage value deviates from a target power supply voltage value; and determine, in response to the acquired power supply voltage value deviating from the target power supply voltage value, a target control signal associated with the target power supply voltage value; and provide the target control signal to the voltage adjustment circuit. The voltage adjustment circuit is configured to adjust the power supply voltage value at the power supply terminal to the target power supply voltage value according to the target control signal.

Abstract: An atomizer and an electronic cigarette with an atomizer are disclosed. The atomizer includes an atomizer body, in which the atomizer body includes a shell, a suction nozzle assembly mounted at the top of the shell, a liquid chamber and an atomization core disposed in the shell. An electronic cigarette with the atomizer is disclosed as well. The electronic cigarette can prevent liquid accumulation caused by long-time static placement and various misoperations. Furthermore, cigarette liquid does not leak during injection. The components of the atomizer such as the suction nozzle or the base do not need to be disassembled, so that the cigarette liquid is convenient to inject, and the user experience is good.

Abstract: Embodiments of the present invention disclose an ultrasonic atomizer and electronic cigarette. The ultrasonic atomizer comprises a liquid storage cavity and a piezoelectric ceramic piece both are provided in an outer sleeve the plane where the piezoelectric ceramic piece is located is parallel to the axial line of the outer sleeve; at least one surface of the piezoelectric ceramic piece is in contact with a liquid storage body; the liquid storage body communicates with the liquid storage cavity; and an atomization surface of the piezoelectric ceramic piece communicates with an air passage.

Abstract: Embodiments of the present invention disclose an ultrasonic atomization piece, a manufacturing method thereof, an ultrasonic atomizer and electronic cigarette. The ultrasonic atomization piece comprises a ceramic substrate, which is provided with an upper silver layer on the upper surface and with a lower silver layer on the lower surface. The ceramic substrate, the upper silver layer and the lower silver layer form piezoelectric ceramic, and glass glaze for protecting the upper silver layer is provided on the upper surface of the piezoelectric ceramic; and a tobacco tar adsorption layer is provided on the upper surface of the glass glaze to form a piezoelectric ceramic component, and the tobacco tar adsorption layer is used for adsorbing, guiding and transferring tobacco tar.

Abstract: Embodiments of the present invention disclose an atomizer of electronic cigarette and electronic cigarette. The atomizer comprises a housing; the housing is in fixed connection with a suction nozzle; an ultrasonic atomization piece is fixed in the housing; the ultrasonic atomization piece comprises a solid piezoelectric ceramic piece; one surface of the solid piezoelectric ceramic piece is in contact with a liquid guide structure, and the other surface thereof is in contact with solid perfume; the liquid guide structure communicates with a tobacco tar storage cavity; both of the liquid guide structure and the solid perfume communicate with an airflow passage; and an air inlet of the airflow passage communicates with the outside of the housing, and an outlet of the airflow passage communicates with the suction nozzle.

Abstract: An ultrasonic electronic cigarette atomizer and an electronic cigarette, wherein the ultrasonic electronic cigarette atomizer comprises a shell, a tobacco tar storage bottle, an ultrasonic atomization piece and a flaky tobacco tar storage body fit to one side face of the ultrasonic atomization piece are provided in the shell, and a tobacco tar guide body is fixed to an outer wall of at least one side of the tobacco tar storage bottle; one side face of the tobacco tar guide body is communicated with the inner cavity of the tobacco tar storage bottle, and the other side face of the tobacco tar guide body is contacted with the side face of the tobacco tar storage body which is away from the ultrasonic atomization piece; and the ultrasonic atomization piece and the tobacco tar storage body are provided to be parallel to the length direction of an electronic cigarette.

Abstract: Disclosed is an atomizer, comprising an atomizer body, a suction nozzle assembly, an air inlet, an atomization sheet, a tobacco tar chamber, a tobacco tar guide device and an air outflow passage, in which a tobacco tar separation chamber is provided in the middle of the tobacco tar chamber, and an accommodating chamber is provided in the tobacco tar separation chamber.

Abstract: Disclosed is an atomizer, comprising an atomizer body, a suction nozzle assembly mounted at the top of the atomizer body, an air inlet provided in the atomizer body, an atomizing sheet and a tobacco tar cavity provided in the atomizer body, and a tobacco tar guide body which guides tobacco tar in the tobacco tar cavity to an atomizing surface of the atomizing sheet. The atomizer introduces entered air to allow all the air to pass over, at a low level, the surface where the atomizing cotton is in contact with the atomizing sheet. The atomizing efficiency is higher, and more smoke is produced.

Abstract: Disclosed are an ultrasonic electronic cigarette atomization core and atomizer, the electronic cigarette atomization core including an atomization core fixing sleeve. A first atomization sheet, a first tobacco tar guide component and a bracket are arranged in the atomization core fixing sleeve. The ultrasonic electronic cigarette atomization core not only can atomize two kinds of tobacco tar at the same time, but also can atomize the solid tobacco product, and the amount of smoke is large, therefore the demands of smokers for different tastes, in particular the demands for the taste of true cigarette, can be satisfied.

Abstract: An electronic cigarette, comprising a shell and a power supply installed in the shell, and the electronic cigarette further comprises a tobacco bin which is provided in the shell and communicates with the outside air, and a suction nozzle which communicates with the tobacco bin; and a piezoelectric ceramic piece which clings to the tobacco bin is provided in the shell, the piezoelectric ceramic piece is a bearing surface of the tobacco bin on which a tobacco material is loaded as well as a heating surface of the tobacco bin, and the piezoelectric ceramic piece is electrically connected with the power supply. The electronic cigarette has a simple atomization mode and directly atomizes the tobacco material by means of the high frequency vibration and heat of the piezoelectric ceramic.

Abstract: Disclosed is an ultrasonic electronic cigarette atomizer. An atomizer shell, an atomization piece and a liquid guide structure are arranged in the atomizer shell. The liquid guide structure communicates with a liquid storage cavity in the atomizer shell. A heating body is further arranged in the atomizer shell. Both of the atomization piece and the heating body are in contact with the liquid guide structure, and both of the heating body and an atomization surface of the atomization piece communicate with an airflow passage, and a positive electrode and a negative electrode of the heating body are respectively connected with one end and the other end of a power supply. The heating body can not only quickly heat the tobacco tar to approach to its atomization temperature, but also can transfer a part of heat to the atomization piece, so that the atomization piece atomizes the tobacco tar quickly, shortening the atomization time.

Abstract: A cotton-free ultrasonic atomizer and electronic cigarette, comprising a tobacco tar cup, an air inlet passage, a tobacco tar smoke outlet passage and an atomization component; the atomization component includes a first atomization piece and a second atomization piece; an atomization cavity is formed between the first atomization piece and the second atomization piece, and an ejection end of the first atomization piece aligns to an atomization surface of the second atomization piece; the first atomization piece communicates with a tobacco tar outlet of the tobacco tar cup, the air inlet passage communicates with the atomization cavity, and the atomization cavity communicates with the tobacco tar smoke outlet passage.

Abstract: An ultrasonic electronic cigarette atomizing core and atomizer is provided, the atomizing core including an atomizing core sleeve, and tobacco tar guide cotton and an atomizing piece in the atomizing core sleeve.

Abstract: An electronic cigarette atomizer, including a shell; one end of the shell is in fixed connection with a suction nozzle; an ultrasonic atomization piece is fixed in the shell; the ultrasonic atomization piece is in contact with a liquid guide body; the liquid guide body is communicated with a liquid storage cavity; an atomization outlet of the ultrasonic atomization piece is communicated with an airflow passage; solid perfume are provided on the airflow passage; the solid perfume are in contact with a heating device; and a tail end of the airflow passage is communicated with the suction nozzle. The ultrasonic atomization piece is adopted to atomize the tobacco tar to produce smoke, meanwhile the solid perfume are heated by the heating device to produce fragrance, finally the smoke is mixed with the fragrance, in this case, the mixed smoke has the fragrance of the real cigarette.

Abstract: Disclosed are an ultrasonic atomization piece, an electronic cigarette atomization core and an electronic cigarette atomizer. The ultrasonic atomization piece includes a piezoelectric ceramic main body; one surface of the piezoelectric ceramic main body is in contact with a positive electrode conducting layer, and the other surface of the piezoelectric ceramic main body is in contact with a negative electrode conducting layer, the negative electrode conducting layer extends to the surface of the piezoelectric ceramic main body on which the positive electrode conducting layer is located along a side edge of the piezoelectric ceramic main body, and a plurality of convex point areas, which cover the edge of the positive electrode conducting layer are provided on an edge of the negative conductive layer.

Abstract: The present application provides an output voltage adjustable circuit, a voltage adjustment method and a display apparatus. The output voltage adjustable circuit includes a DC voltage output sub circuit, configured to output a DC voltage. The output voltage adjustable circuit further includes a resistor-adjustable sub circuit, coupled to the DC voltage output sub circuit, and configured to adjust a resistance of a resistor connected to the DC voltage output sub circuit so that a DC voltage output by the DC voltage output sub circuit is adjustable according to the resistance of the resistor connected to the DC voltage output sub circuit.

Abstract: The present disclosure provides a feedback circuit for monitoring a heating loop, comprising a sample input module, a voltage conversion module and a main control chip. The sample input module has an input terminal coupled to the heating loop and configured to collect a voltage signal from the heating loop, and an output terminal electrically coupled to an input terminal of the voltage conversion module. The voltage conversion module has an output terminal coupled to an input terminal of the main control chip, and is configured to convert the voltage signal received from the sample input module into a voltage signal that the main control chip can withstand. The main control chip is configured to send a sample control signal to the heating loop, and calculate and output magnitude of the voltage signal inputted to the sample input module according to the voltage signal outputted by the voltage conversion module.

Abstract: The present disclosure discloses a selection and output circuit, and a display device, and the selection and output circuit includes: a first control sub-circuit, a second control sub-circuit, a first output sub-circuit, and a second output sub-circuit, where the first control sub-circuit, the second control sub-circuit, the first output sub-circuit, and the second output sub-circuit are arranged so that the first output sub-circuit and the second output sub-circuit are controlled by the first control sub-circuit and the second control sub-circuit to operate in such a way that only one of the sub-circuits outputs a signal, and the other sub-circuit outputs no signal.