A method of preventing washer fluid freezing is provided. The method includes performing hose residual washer fluid removal control that removes residual washer fluid of a hose which is a movement path of washer fluid after a spray of the washer fluid by operation of a pump washer fluid device.

The present application relates to an electronic vaporizer, an electronic vaporizer device body, and an electronic vaporizer device. An electronic vaporizer is used in combination with an electronic vaporizer device body, wherein the electronic vaporizer device body at least comprises a power supply, a first pin and a second pin; and the electronic vaporizer comprises: a storage compartment, storing a vaporizable substance; and a heating circuit, comprising: a heating component, configured for heating; and a first and second contact pad, wherein the heating circuit changes a voltage or current between the first pin and the second pin after the first and second contact pad being electrically contacting with the first and second pin respectively; and after detecting the voltage or the current changes, the electronic vaporizer device body controls the power supply to supply power to the heating component via the first and second contact pad.

The present invention provides a heater temperature control circuit including a heater and a control circuit that controls a temperature of the heater, wherein the control circuit includes a bridge circuit in which a first circuit and a second circuit are connected in parallel, and an operational amplifier connected to the bridge circuit, wherein in the first circuit, the heater and a resistor are connected in series, and a midpoint of the first circuit is connected to one input portion of the operational amplifier, and an output value V.sub.out from the second circuit is input to the other input portion of the operational amplifier, the output value V.sub.out being obtained by multiplying a division ratio of a target resistance value R.sub.h of the heater and a resistance value R.sub.1 of the resistor with a reference voltage V.sub.ref of the bridge circuit.

A heater for use in an aerosol generating device is disclosed. The heater includes a heating element comprising a coil. The coil has at least two coiled regions and one non-coiled region. The heater includes a pair of wicks arranged to feed e-liquid to the heating element from different directions. A device for generating an inhalable medium including a heater for volatilizing liquid is also disclosed.

A heat power management system is disclosed for an alternating current (AC) power controller for use with portable reverse osmosis water purification systems requiring precise control of a heating action for an internal water heater coupled with energy savings and the reduction of AC line disturbances. The heat power management system is designed to operate with various international electrical systems while protecting such system from excessive current draws.

In a method for operating a heating device, fluid is initially introduced into a fluid chamber, then the heating elements of the heating device are switched on and a leakage current is detected as a temperature-dependent current flow through a dielectric insulation layer. A supply voltage of the heating devices is measured and is taken into account in an evaluation of the temperature at the fluid chamber as a function of the leakage current. The leakage current is converted into a leakage voltage by means of a resistor, which is then divided by the measured supply voltage. Subsequently, the quotient obtained may be multiplied by a compensation value in order to obtain a normalized leakage signal, which is normalized to a base value of the supply voltage. The normalized leakage signal is used, if a particular absolute value of the leakage signal is exceeded or if a particular slope of the profile of the leakage signal is exceeded, in order to top up the fluid chamber with more fluid and/or to reduce the heating power of at least one heating element.

The present disclosure relates to electronic cigarettes having vaporizer assembly with “U” shaped air path and methods of using the same. The electronic cigarette includes: mouthpiece assembly, electronic cigarette body, E-liquid storage tank having a negative air pressure cavity and a number of airflow channels forming “U” shaped air path, and the vaporizer assembly. The vaporizer assembly includes: one or more cylindrical E-liquid storage media, and one or more heating elements. The elements are electrically connected to an electrical power supply through negative air pressure activated switch. When a user sucks air from mouthpiece assembly, a negative air pressure is created in the negative air pressure cavity, the negative air pressure activated switch turns on the electrical power supply to the heating elements, and the heating elements vaporize the E-liquid stored in cylindrical E-liquid storage media to generate electronic cigarette vapor for the user through the “U” shaped air path.

A modular manifold for a tankless water heater includes a first cavity member having a first opening, a second opening, and a base wall; a second cavity member coupled to the first cavity member, the second cavity member having a first opening, a second opening, and a base wall; a first cover plate coupled to either the first cavity member or the second cavity member; and a second cover plate coupled to either the first cavity member or the second cavity member, wherein two openings in the first and second openings are covered by the first and second cover plates, respectively, and wherein the base walls of the first and second cavity members, the first and second cover plates, and the two openings in the first and second openings not covered by the first and second cover plates define a fluid flow path in the modular manifold.

Water heater with generator comprises a self-heating tankless water system comprising a length of tubing having a plurality of electrical heating cables secured about the piping. As cold water enters the system the flow of the water is diverted through an electrical generator which provides the electricity to heat the water.

A temperature controller for electronic smoking device includes a metal heating sheet for heating a cigarette and a controller for controlling temperature of the heating sheet by collecting a real-time resistance of the heating sheet. The power drive unit is electrically connected to a power source and the heating sheet respectively, the control unit is electrically connected to the power drive unit and the real-time resistance detection unit respectively, and the analog-to-digital conversion unit is configured to convert an analog signal output by the real-time resistance detection unit into a digital signal that is transmitted to the control unit. The real-time resistance detection unit is configured to detect a real-time resistance of the heating sheet, and the control unit is configured to adjust an output power of the power drive unit according to the real-time resistance of the heating sheet. The controller realizes precise temperature control and convenient operation.