46results about How to "Protection from being burned" patented technology

The invention relates to a wireless-receiving system for detecting microelectronic mechanical microwave frequency and a preparation method thereof. The wireless-receiving system for detecting the microelectronic mechanical microwave frequency has quite simple structure, large measurement magnitude range, no direct-current power consumption and easy integration. In the system for detecting the microelectronic mechanical microwave frequency, gallium arsenide is used as a substrate, wherein a microwave antenna (A), a one-three power splitter (B), a coplanar waveguide transmission line (C), a two-in-one power combiner (D), an MEMS cantilever capacitive microwave power sensor (E) and an MEMS thermoelectric microwave power sensor (F) are designed on the substrate; and then a phase difference between a signal 3 and a signal 2 after the signal 3 passes through the coplanar waveguide transmission line with the length of lambda/2 can be determined according to a law of cosines. Because the phase difference corresponds to the frequency of the signal, the frequency of the signal can be measured.

The invention relates to field of electric, in particular to a power supply device for taking electricity from a high-voltage side in an induction manner. The power supply device can provide a low-voltage power supply for a monitoring device arranged on a high-voltage transmission line or in a high-voltage switch cabinet. The structure of the power supply device comprises an electricity taking module, an electric energy conditioning module and an intellectual protection module, wherein the electricity taking module comprises a primary busbar, an current transformer magnetic core, a secondary coil, a sample resistor and a single-pole double-throw relay; the electric energy conditioning module comprises a rectification circuit, a point bleeder circuit, a grain wave filter capacitor and a voltage-stabilizing circuit; and the intellectual protection module comprises an STM8 singlechip, an RF (radio frequency) module and a super capacitor. The power supply device for taking electricity from high-voltage side in the induction manner has a protection function and an intelligent monitoring function, effectively protects the power supply device and a rear load from being burned, and real time monitor the power supply through the RF module, and ensures safety and stability of providing power supply for an outer load.

The invention is suitable for the technical field of air conditioners and provides a method for calibrating rotating angle of an air outlet of a wide-angle air conditioner. The method includes the following steps: judging whether reservation angle of the air outlet of the air conditioner is uniform with current angle or not; if not, driving a head shaking part of the air conditioner to drive the air outlet to rotate through a basic calibrating angle signal; if a feedback signal is received, continuing to output the basic calibrating angle signal; if no feedback signal is received, continuously outputting the basic calibrating angle signals in a preset number; if the feedback signal is received, returning to the previous step, and if not, stopping calibrating. Angle difference between the reservation angle and the current angle is calibrated through multiple basic calibration angles, whether calibration is performed smoothly or not is examined through the feedback signal, a user can try to enable angle calibration to restore a normal state if calibration is not smoothly performed, and calibration can be stopped if restoration fails to protect the air conditioner from being burnt, so that angle calibration process is realized intelligently while equipment safety is protected.

The invention discloses a preparing method of waterless chlorinate and industrial alcaine with low water cobalt chloride (CoCl2.H2O-CoCl2.3H2O), hydrogen gas and chlorine gas as raw material, which comprises the following steps: using high temperature hydrochloride gas generating by burning hydrogen gas and chlorine gas; carrying low chlorinate into pyrolytic reactor; transferring heat with high temperature hydrochloride gas; generating pyrogenic reactor under the catalysis of electromagnetic wave through the pyrolytic reactor; getting waterless chlorinate and water vapor; entering part gas phase material into hydrochloride synthetic furnace through air-solid segregation; proceeding cyclical usage; displacing left gas phase material into hydrochloride recovery system; getting industrial alcaine.

The invention discloses a starter protector for controlling a starter current limiter. The starter protector comprises a high-side switch, a first sampling circuit, a second sampling circuit, a third sampling circuit and a controller, wherein the high-side switch is used for being connected to a connection path from external control voltage to the control terminal of the starter current limiter in series, and the external control voltage is used for controlling the starter current limiter to carry out the current limiting work; the first sampling circuit, the second sampling circuit and the third sampling circuit are used for collecting the input end voltage, the output end voltage and the external control voltage of the starter current limiter correspondingly; and the input end of the controller is connected with the output ends of the first to third sampling circuits, and the output end of the controller is connected with the control end of the high-side switch so that the high-side switch can be controlled to be switched on or off. The invention further discloses an automobile starting control system. The starter protector can recognize the fault situations of the starter current limiter and a starter in the starting process and disconnect the external control voltage from the starter current limiter automatically in case of faults so that the starter can be protected.

A fire-fighting equipment power supply with a relay protection circuit, the fire-fighting equipment power supply includes an EMI filter lightning protection circuit, a rectification filter circuit, a power conversion circuit, a DC24V rectification filter and a main-standby power conversion circuit connected in sequence, and the DC24V rectification filter circuit is connected to a charging circuit. The management circuit, the main and standby power conversion circuit is connected to the relay protection circuit. The relay protection circuit includes MCU and relay K1. When the fire equipment power supply detects that the voltage of the AC grid is disconnected, it needs to switch the main power supply of the fire equipment power supply to the backup power supply. Under the control of the MCU, the relay K1 pulls in to connect the backup power to the output of the main and backup power conversion circuit. It is characterized in that a diode D2 is connected in series at the power supply end of the coil of the relay K1, and an electrolytic capacitor is connected in parallel at both ends of the coil of the relay K1. Capacitor C1.

The invention discloses a preparing method of waterless chlorinate and industrial alcaine, which comprises the following steps: choosing low chlorinate (MClN.H2O-MClN.3H2O), hydrogen gas and chlorine gas as raw material; using high temperature hydrochloride gas generating by burning hydrogen gas and chlorine gas; carrying low chlorinate into pyrolytic reactor; transferring heat with high temperature hydrochloride gas; generating pyrogenic reactor under the catalysis of electromagnetic wave through the pyrolytic reactor; getting waterless chlorinate and water vapor; entering part gas phase material into hydrochloride synthetic furnace through air-solid segregation; proceeding cyclical usage; displacing left gas phase material into hydrochloride recovery system; getting industrial alcaine. This invention use heat, which is discharged by the react hydrogen gas and chlorine gas possess high effect and quick speed.

The invention discloses a preparing method of waterless chlorinate and industrial alcaine, which comprises the following steps: choosing low chlorinate (MClN.H2O-MClN.3H2O), hydrogen gas and chlorine gas as raw material; using high temperature hydrochloride gas generating by burning hydrogen gas and chlorine gas; carrying low chlorinate into pyrolytic reactor; transferring heat with high temperature hydrochloride gas; generating pyrogenic reactor under the catalysis of electromagnetic wave through the pyrolytic reactor; getting waterless chlorinate and water vapor; entering part gas phase material into hydrochloride synthetic furnace through air-solid segregation; proceeding cyclical usage; displacing left gas phase material into hydrochloride recovery system; getting industrial alcaine.

The invention discloses an eight-bit serial-parallel conversion driving chip suitable for heavy-current control driving. The chip comprises a low-voltage voltage-stabilizing unit, a detection processing unit, a communication unit and a driving unit, wherein the low-voltage voltage-stabilizing unit is connected with an additionally arranged power source; the detection processing unit monitors a load state output by the chip in real time; the communication unit comprises one eight-bit shift register and one eight-bit data latch register for receiving external serial input data signals, realizing an eight-bit serial-parallel conversion function and sending parallel output signal data to the driving unit for driving a load; and the driving unit receives the signal data of the communication unit and drives the load based thereon. The chip provided by the invention has a load open-circuit and short-circuit detection function and a short-circuit protection function and guarantees communication stability; and the problem of difficulty in driving a load needing to be driven by heavy currents due to low output power of a conventional serial-parallel conversion chip is solved, the chip cost is greatly decreased, and the chip has a great significance on product development and batch production.

The invention discloses a cleaning device for a windscreen of a vehicle. The cleaning device comprises a wiper rod, a wiper head, a wiper motor, a snow sweeping device, an ice removing device and an anti-blocking spraying device; the wiper motor is installed below the windscreen of the vehicle, one end of the wiper rod is fixedly installed on the wiper motor, and the wiper head is installed at theother end of the wiper rod; the side wall of the wiper head fits the windscreen of the vehicle, an overstress-prevention device is arranged between the wiper rod and the wiper motor, and the snow sweeping device used for sweeping away accumulated snow is arranged on the side wall of the wiper head; the ice removing device for removing ice and frost is arranged on the face, facing the windscreen,of the wiper head, and the anti-blocking spraying device used for providing detergent is further arranged below the windscreen, and faces the windscreen. The cleaning device solves the problems that atraditional windscreen wiper is easily damaged and cannot quickly remove frost and snow and has the advantage of being convenient to use and having a good effect of removing ice and snow.

The invention discloses a time-limited protecting device for a three-phase AC point switch. The device comprise a time-limited protector and an alarm host computer; the time-limited protector comprises a three-phase current transformer, a rectifier circuit, a voltage stabilizing circuit and a timing circuit which are sequentially connected; a winding B1, a winding B2 and a winding B3 at the primary side of the three-phase current transformer are respectively correspondingly connected with an A phase line, a B phase line and a C phase line of a three-phase power supply; a relay driving circuit and an RS-485 alarm communication circuit are connected to the output end of a timing circuit; a coil of the relay of the three-phase AC point switch is connected with the relay driving circuit; the alarm host computer comprises an RS-485 communication module which is connected with the RS-485 alarm communication circuit, a PLC module connected with the RS-485 communication module, and a touch type liquid crystal display screen which is connected with the PLC module. The time-limited protecting device for the three-phase AC point switch is simple in structure, and convenient to use and operate; the three-phase AC point switch can be remotely monitored, so that a three-phase AC motor is prevented from being burnt out, and the practicability is improved.

The invention discloses a high-temperature furnace circulating water cooling system. The high-temperature furnace circulating water cooling system comprises a high level water tank, a cooling tower, alow level water tank and an emergency drain valve; the high level water tank is higher than the arrangement position of a high-temperature furnace and is connected with the high-temperature furnace through a first pipe; the cooling tower is connected with the high-temperature furnace through a second pipe; a circulating pump is arranged on the second pipe; hot water output from the high-temperature furnace is conveyed to the cooling tower through the second pipe through the circulating pump; the cooling tower is connected with the high level water tank through a third pipe; the arrangement position of the low level water tank is lower than the arrangement positions of the high level water tank and the high-temperature furnace; the low level water tank is connected with the second pipe through a fourth pipe; the connecting part of the fourth pipe and the second pipe is positioned between the high-temperature furnace and the circulating pump; the emergency drain valve is arranged on thefourth pipe; and the emergency drain valve is automatically opened when the circulating pump stops or water circulation stops. According to the high-temperature furnace circulating water cooling system disclosed by the invention, delayed cooling can be performed on the high-temperature furnace when the circulating pump stops or the water circulation stops, so that the safety of the high-temperature furnace in a fault state is ensured.