2195results about How to "Burn out prevention" patented technology

The invention discloses a melt differential three-dimensional printer. The melt differential three-dimensional printer mainly comprises a material melting unit, a micro-droplet jetting unit, a cylindrical-coordinate system molding unit and a rack, wherein a servo motor drives a screw rod to rotate in the material melting unit; a heater, which is fixedly arranged inside a machine cylinder, ensures that granules are entirely plastified through temperature regulation; a molten material is transmitted by the screw rod to the micro-droplet jetting unit; in the micro-droplet jetting unit, the molten material is transmitted into a valve body through a hot runner in a runner plate; a linear servo motor drives a valve needle to do reciprocating motion in the valve body so as to quantitatively and intermittently squeeze the molten material out of a nozzle to form melt micro-droplets; in the cylindrical-coordinate system molding unit, the molten micro-droplets are injected to a bearing table for cooling and deposition molding; the servo motors in the left-right direction and in the vertical direction are respectively engaged with the corresponding screw rod to rotate so as to drive the material melting unit and the micro-droplet jetting unit to move along the left-right direction and the vertical direction; a circumference servo motor drives the bearing table with a worm gear to rotate through a worm rod so as to realize three-dimensional movement under a cylindrical-coordinate system.

The invention relates to an infrared induction temperature control e-cigarette and a temperature control method thereof. The infrared induction temperature control e-cigarette comprises a shell, a liquid storage device nested in the shell, an atomization component, a heating element R in the atomization component, a power supply and a circuit control panel with a smoking switch SW. The circuit control panel comprises an infrared temperature induction unit and a power supply management module. The infrared temperature induction unit can receive an infrared radiation signal which is sent from the heating element R and which represents a certain temperature, then converts the same into a temperature electric signal and sends the temperature electric signal to the power supply management module. After judgment and processing, the power supply management module generates a control electric signal to control the heating element R to be connected/disconnected with the power supply. According to the arrangement, with the infrared temperature induction unit, the temperature in an atomization chamber is detected and controlled, and the atomizer is protected from dry burn. Thus noxious gas and burnt flavor are prevented from entering human bodies, and human health is protected.

The present invention relates to an anti-dry burning device and anti-dry burning control method of electronic cigarettes. The anti-dry burning device of the electronic cigarettes comprises a microcontroller, a buck-boost bridge circuit, a mistorizer resistance value sampling circuit, a mistorizer, a mistorizer resistance value detection module and a battery power supply circuit; and the microcontroller is electrically connected with the buck-boost bridge circuit, the mistorizer resistance value sampling circuit, the mistorizer and the mistorizer resistance value detection module sequentially, and the mistorizer resistance value detection module is connected with the microcontroller; the mistorizer resistance value sampling circuit is electrically with the mistorizer resistance value detection module; a feedback circuit is connected between the mistorizer resistance value sampling circuit and the buck-boost bridge circuit, and the feedback circuit is connected with the microcontroller, and therefore, the microcontroller can adjust the output voltage of the buck-boost bridge circuit and keep the output voltage stable; and when an electronic cigarette is used, tobacco juice is almost exhausted, and the mistorizer resistance value detection module detects that the number of times when the resistance value of the mistorizer consecutively exceeds a dry burning protection set resistance value, exceeds a set number of times, the microcontroller instructs the buck-boost bridge circuit to turn off output, and the electronic cigarette automatically stops working.

The invention discloses an active regeneration grading control method for a particle trap. The active regeneration grading control method aims to acquire the real-time carbon loading amount and temperatures of the particle trap. According to the carbon loading amount, a plurality of carbon loading limit values are determined, a plurality of temperature limit values are determined according to thetemperatures, the real-time carbon loading amount and the carbon loading amount limit values of the particle trap are compared, the real-time particle trap temperatures and the temperature limit values are compared, an active regeneration mode is determined, and the active regeneration mode is one or a combination containing more than one of the conditions that an engine is controlled to defer theignition angle, the air-fuel ratio becomes lean, and the idle speed is increased. According to the active regeneration grading control method for the particle trap, the mode of active regeneration isdetermined according to the regions where different carbon loading amount and the temperatures of the particle trap are located and the marking of the region, so that the carbon deposition is effectively removed in time when the carbon loading amount is too high, and the exhaust back pressure is reduced.

The invention is applicable to the technical field of mobile terminals and provides a method and a device for headset audio playing. The device comprises an audio output unit outputting audio in a mobile terminal. When the audio output unit is a preset unit, the audio output unit detects whether a headset accesses into the mobile terminal or not. The preset unit comprises one or more of a loudspeaker, a sound box, a sound console, a power amplifier and a multimedia console. When the headset is detected to access into the mobile terminal, volume of the output audio is controlled to be proper. In the embodiment, when the headset is accessed into the mobile terminal, the volume of the output audio is controlled to be proper, volume of the headset is avoided from being high, eardrums of users are protected from damages, and burnout of the headset or sound distortion caused by disconnection and dislocation of a voice coil of the headset are avoided, thereby safety of the eardrums of the users playing the audio through the headset is improved, and service life of the headset is prolonged.

The embodiment of the invention discloses a circuit for detecting a locked point current of a micro motor, which is used for accurately detecting the locked point current of the micro motor. The circuit for detecting the locked point current of the micro motor, disclosed by the embodiment of the invention, comprises the micro motor, an input power supply, a micro motor current sampling circuit, a switch and a comparer circuit, wherein the voltage value of the input power supply is variable, the input power supply is used for providing a working voltage to the micro motor; the micro motor current sampling circuit is used for sampling the current of the micro motor and generating a sampling voltage; one end of the switch is connected with the input power supply, the other end of the switch is connected with the micro motor, the switch is used for controlling the working state of the micro motor; one input end of the comparer circuit receives the sampling voltage, the other input end of the comparer circuit receives a reference voltage, the reference voltage and the input power supply are in a direct proportion relation, the comparison output end of a comparer outputs a switching signal used for controlling switching on and off of a drive switch.

A multi-stage intensifying auxiliary sintering type ignition holding furnace comprises a sintering machine (1), an ignition device (2) and an auxiliary combustion device (3), wherein the sintering machine (1) has a trolley (1); the ignition device (2) and the auxiliary combustion device (3) are orderly arranged on the trolley (1); the auxiliary combustion device (3) has a hot air device (4), a blow-injection device (5) and an auxiliary combustion cover (6); the hot air device (4) has a hot air pipeline (401); and the blow-injection device (5) has a fuel gas total pipe (501), a fuel gas branch pipe (502), a blow-injection pipe (503) and a rack (504). The multi-stage intensifying auxiliary sintering type ignition holding furnace can replace coke by partial fuel gas and hot smoke and achieves sintering bed segregation coke distribution effect via phase conversion; blow-injection device adjustability and freedom can be enhanced; multi-procedure multi-medium coupling blow-injection can be achieved; and the multi-stage intensifying auxiliary sintering type ignition holding furnace has great safety performance and high sintering quality.

The invention discloses a method for calculating the switching-off and switching-on time of a breaker and the stroke of a moving contact of the breaker. According to the method, first, a switching-on operating coil starts to be powered on after the breaker receives a switching-on instruction, the coil generates sufficient electromagnetic force to push an iron core to move along with increasing of current so that an energy storage mechanism can be started to release energy to generate acting force for driving the moving contact to move, then, the moving contact can make contact with a fixed contact and arrive at a position where switching-off is just achieved at the moment, and the stoke of the moving contact is called as idle stroke before; second, the moving contact continues moving on to arrive at the switching-on position and keeps a switching-on state with a mechanism, and the process is called as over-stroke; the stroke distance of the moving contact is the sum of the idle stroke distance and the over-stroke distance; in the switching-off process, the first step and the second step are repeated in the same way. The method is simple in algorithm, easy to realize in an embedded system, capable of lowering cost effectively and beneficial to miniaturization of the system. The moment when the moving contact of the breaker starts to move and the moment when the moving contact of the breaker stops moving can be accurately acquired.