55results about How to "Reduced risk of overheating" patented technology

The inductively heatable tobacco product for aerosol- generation comprises an aerosol-forming substrate containing a susceptor in the form of a plurality of particles. The aerosol-forming substrate is a crimped tobacco sheet comprising tobacco material, fibers, binder, aerosol-former and the susceptor in the form of the plurality of particles.

The invention belongs to the technical field of lithium ion batteries and particularly relates to a preparation method of a winding lithium ion battery. The preparation method comprises the following steps of: coating anode paste on an anode current collector, drying and then cold pressing the anode paste, and then bending an anode plate to be V-shaped; processing an cathode plate with the same steps, placing the bent anode plate and the bent cathode plate in a crossing way, placing a diaphragm between the anode plate and the cathode plate, welding and connecting the anode plate by virtue of an anode pole ear, and welding and connecting the cathode plate by virtue of a cathode pole ear, thus obtaining a pole plate group; winding the pole plate group to form a battery cell, placing the battery cell in a packaging bag, and performing injection and formation to obtain the lithium ion battery. Compared with the prior art, the preparation method decreases the resistance of the pole plates through bending the pole plates, thus reducing ohmic polarization in a charge-discharge process, improving the consistency of the battery, and obviously reducing the gas production speed of joule heat and side reaction in the charge-discharge process so as to improve the power multiplying performance and prolong the cycle life of the lithium battery and a lithium ion battery pack.

The invention provides improved conductive ink, and particularly relates to liquid ink containing a carrier solvent, a conductive additive which is dispersed in the solvent, an amorphous polymer, a half-crystallization polymer and other additives. The liquid ink is applicable to intaglio printing and silk-screen printing. The conductive ink also has resistance positive temperature coefficient of more than 5000ppm / DEG C. The conductive ink can be in jelly-like form after being stored at relatively low temperature or for a long time, after being heated, stirred or vibrated, the ink still has good mobility, the heating power of a low-temperature radiation electric heating film prepared by utilizing the ink can be automatically reduced under the condition of poor heat radiating property, and the overheat risk of the electric heating film can be reduced.

The invention provides an auxiliary power generation control method and system for an extended-range fuel cell vehicle, a vehicle control unit and the extended-range fuel cell vehicle, and aims to prevent a fuel cell system from being overheated and prevent the service life of the fuel cell system from being shortened. The method comprises the steps of when the current remaining electric quantityof a power battery is less than a first set electric quantity value, outputting a starting instruction for requesting the fuel cell system to work so as to enable the fuel cell system to be started and enter an idling state; determining basic power generation power of the fuel cell system based on the current remaining electric quantity of the power cell; based on the accelerator pedal opening degree of the vehicle, determining the driver demand power offset; based on the wheel speed of the vehicle and the temperature of the environment where the vehicle is located, determining the maximum heat dissipation power of the vehicle; determining target generated power according to the basic generated power, the driver demand power offset and the maximum heat dissipation power; and sending the target generated power to the fuel cell system so as to enable the fuel cell system to generate power to supply power to the motor and the power battery.

The invention discloses a preparation method of an oversize width alloy plate. The preparation method comprises the following steps that a TA15 titanium alloy plate blank is taken as a raw material, the phase change temperature is 990 DEG C, the chemical components (in percentage by mass): 6.66% of Al, 1.66% of Mo, 2.20% of V, 2.08% of Zr and the balance of Ti are adopted, firstly, the plate blankis subjected to two heating numbers of hot rolling on a 2800 mm four-roller reversible hot mill, thus a semi-finished plate blank with the thickness being 20 mm is obtained, the deformation amount ofthe two heating numbers is 71% and 69% correspondingly, then one part of the semi-finished plate blank is subjected to beta quenching, and the other part is not treated; then two types of semi-finished plate blank are subjected to unidirectional rolling and reversing rolling correspondingly to obtain a semi-finished plate blank with the thickness being 4 mm, then pack ply-rolling is conducted, and after annealing and surface treatment are conducted, the oversize width TA15 titanium alloy plate with the size being 1.2 mm*1200mm*2500mm is obtained. The superplastic forming temperature is decreased, thus the mold cost is greatly lowered, the overheating risk of parts is reduced, the machining period is shortened, and the production efficiency and the production quality are improved.

The invention relates to the technical field of titanium alloy forging, in particular to a forging processing method for a TC32 titanium alloy large specific bar. The method comprises the steps: performing recrystallized homogenized forging after cogging forging; then performing forging at a beta transition temperature; and finally, forging a product. Tissues are regulated and controlled precisely to obtain needed mechanical properties. The consistence of flaw detection level of the bar is improved. The obtained tissues and performance are uniform, and the yield is improved.

A transistor (1) has a FET (2) and a temperature sensing diode (4) integrated within it. Gate drive circuit (12) is arranged to switch off FET (2) and in this case biasing circuit (14) drives a constant current through the diode (4). The voltage across the diode (4) is measured by voltage sensor (15) which provides a measure of the temperature of the FET.

The invention provides a control method and device for inhibiting front wheel slippage of a four-wheel drive vehicle and the four-wheel drive power vehicle. The method comprises the following steps ofS1, monitoring and obtaining the wheel speed of each wheel of a front axle and the vehicle running speed in real time when the vehicle runs, and calculating the slippage rate of each wheel of the front axle according to the wheel speed of each wheel of the front axle and the vehicle running speed; S2, judging whether the slippage rate of each wheel of the front axle is greater than a reference slippage rate, executing S3 when the slippage rate of only one wheel of the front axle is greater than the reference slippage rate, and executing S3 and S4 simultaneously when the slippage rates of at least two wheels of the front axle are greater than the reference slippage rate; S3, requesting an ESP to apply braking force to the wheels of the front axle with the slippage rate exceeding the reference slippage rate; and S4, controlling the torque transmitted by a rear axle of the vehicle to increase. When the vehicle slips seriously, front wheel slippage is inhibited by braking the front wheelsand controlling the torque transmission ratio of the rear axle, the vehicle dynamic property is improved, and a whole transmission system is protected.

The invention discloses a fan control system and method and a CPLD. The fan control system is applied to a server and comprises a plurality of fan rotors, a CPLD and a BMC, wherein TACH signals of thefan rotors are sent to the CPLD; the CPLD receives the multiple TACG signals and endows each TACH signal with corresponding identification information, and then the TACH signals with the identification information are sent to the BMC; and the BMC receives the multiple TACH signals and generates corresponding PWM control signals according to the TACH signals, and then the PWM control signals and the corresponding identification information are sent to the CPLD; and the CPLD sends the PWM control signals to the corresponding fan rotors according to the identification information. According to the fan control system and method and the CPLD, when fan rotor ports reserved on a mainboard are insufficient, multiple fan rotors controlled through the CPLD can be added to improve heat dissipation of a server system, and thus, the over-temperature risk is lowered.

The invention provides an engine heat insulation structure for an oil-powered unmanned aerial vehicle. The engine heat insulation structure includes a first heat insulation plate and a second heat insulation plate which are arranged in the front and at the rear of an engine respectively. The first heat insulation plate and the second heat insulation plate are formed by a porous carbon fiber supporting plate and heat insulation cotton adhering to the carbon fiber supporting plate in an interlayer mode. The heat insulation cotton is disposed on one side of the carbon fiber supporting plate facing the engine. According to the engine heat insulation structure, the engine and a heat dissipation structure thereof are separated from other structures in a fuselage, and the risk of overheating caused to a fuel tank and an electronic device in compact layout in a narrow space in the unmanned aerial vehicle by engine heat can be reduced.

The invention relates to the field of industrial laser, and discloses an adaptor of a fiber interface, for solving the technical problems of poor dustproof sealing performance of a fiber interface, incapability of connection with rear-end equipment and too high light outlet temperature in the prior art. The adapter comprises an annular water cooling structure, and the annular water cooling structure internally comprises a water cooling cavity for water circulation; a butt joint unit arranged inside the annular water cooling structure for connection with the fiber interface; a locking mechanism arranged at one end of the annular water cooling structure for locking the adapter with a light-emitting head; and a first sealing ring arranged at the inner side of the locking mechanism for sealing an interface between the adapter and the light-emitting head. In such a way, the technical effect of improving the dustproof sealing performance of the fiber interface in the application process is achieved.

The invention discloses a motor power supply capable of preventing overheating and burning. The motor power supply comprises a voltage conversion circuit, a soft starting control circuit and a currentdetection control circuit and is characterized in that the voltage conversion circuit is connected with the soft starting control circuit and the current detection control circuit, the soft startingcontrol circuit is further connected with the current detection control circuit, and the current detection control circuit is further connected with a DC motor M. In the motor power supply capable ofpreventing overheating and burning, the overcurrent protection function of the DC motor is achieved by a logic gate controller combined with a relay, the overcurrent influence caused by starting largecurrent on the DC motor can be effectively prevented, so that the risk that a coil in the motor is over-heated is reduced, meanwhile, the function of interference resistance is also achieved, and themotor power supply has the advantages of stable performance and good application effect and is convenient to use.

This invention discloses a liquid heating device, core of the said device and a fabricating method thereof. Said liquid heating device includes: a core arranged a channel for flowing the liquid inside it and attached a water inlet level and a water outlet level; at least a thermal diffusion part having a first face and a second face. Said thermal diffusion part is fixed in the center of the core and the first face is jointed with the core; at least a heating components fixed on the thermal diffusion part and jointed with the second face of the thermal diffusion part, either the heating components or the thermal diffusion part acts as a independent part or formed a whole inseparable body with the core; a case for strengthening purpose. The advantage of this invention is that an even heating process can reduce the risk of overheating of the heating components. Said thermal diffusion part can protect heating components from overheating when there is not enough liquid in core, in addition, promoting the liquid to be discharged easily and at the same time, increasing the heat transfer efficiency from the heating components to the liquid in the core.

The present invention discloses an inductively heatable tobacco product for generating aerosol comprising an aerosol-forming substrate comprising a plurality of susceptors in particulate form. The aerosol-forming substrate is a rolled tobacco sheet comprising tobacco material, fibers, binder, aerosol-forming agent and a plurality of susceptors in particulate form.

The invention provides a compressor preheating method, system, medium and equipment. The compressor preheating method comprises steps: a preheating instruction is sent to a driver through a main controller; whether the driver receives the preheating instruction or not is judged; if yes, a preheating signal is sent out, so that preheating current is introduced into a two-phase motor winding of thecompressor, and the compressor is preheated; and if not, no processing is conducted. The pulse signal is sent to the inverter switching device correspondingly connected with the two-phase motor winding of the compressor, so that the preheating current is introduced into the two-phase motor winding of the compressor to preheat the compressor, and the problems of unbalanced preheating and low preheating efficiency in the prior art are improved.

The invention provides a hybrid electric vehicle heat management system and a management method. The hybrid electric vehicle heat management system comprises an engine cooling loop, a battery coolingloop and a motor cooling loop, the engine cooling loop comprises a high temperature radiator, an engine cooling water pump, an engine and a first multi-way valve which are connected in sequence and form a loop; the high temperature radiator and the engine cooling water pump are used for radiating the engine; the battery cooling loop comprises a second multi-way valve and a battery; the motor cooling loop comprises a low-temperature radiator, a second electronic water pump, a motor controller, a motor and a third multi-way valve which are connected in sequence to form a loop, the low-temperature radiator and the second electronic water pump are used for radiating heat for the motor, and the motor controller is used for detecting the operation condition of the motor; and the engine cooling loop, the battery cooling loop and the motor cooling loop are mutually coupled through the first multi-way valve, the second multi-way valve and the third multi-way valve, so that heat energy is converted among the engine cooling loop, the battery cooling loop and the motor cooling loop.

The invention discloses a high-power-density integrated PCU module and a liquid cooling design method thereof. The liquid cooling design method comprises a liquid cooling radiator structure design method and a liquid cooling parameter optimization method. According to the liquid cooling design method, the problem of overheating of a local power chip in the PCU module due to high integration levelof the PCU power module is solved, and optimized heat dissipation of the high-power-density integrated PCU module is realized.

The present invention provides a liquid heater with low power consumption, a control method and a manufacturing method thereof. The liquid heater comprises a core assembly for heating the liquid. The core assembly is provided with a water inlet position, a water outlet position and a channel. The channel is used for connecting between the water inlet position and the water outlet position. The core assembly is provided with a heating assembly. The heating assembly comprises a resistor unit which uses ohm as a unit. The resistance is smaller than 31 and larger than 10. The electric power of the heating assembly uses watt as a unit and is determined according to a voltage supplied by an electrical network. The ratio between the electric power of the heating assembly and the surface area of the heating assembly is smaller than 33 and larger than 14. The core assembly is internally provided with a heat diffusion component. The heat diffusion component is a planar component. Furthermore one surface of the heat diffusion component directly contacts the channel, and the other surface clings to the heating assembly. A heating controller of the heating assembly is controlled through duty ratio. The duty ratio is the ratio accounted by the time of activating the heating assembly with a period of one second according to different liquid input temperature.

The invention discloses a supporting protective component of a high-voltage varistor, which comprises a base, a slot, a limit groove, a limit block, a first protective shell, a second protective shell, a tenon groove, a tenon block, a positioning hole, and a positioning column , the first rubber sleeve, the second rubber sleeve, the first protective inner shell, the second protective inner shell, grooves, bumps, sleeve holes, pin sleeves, limit strips, locking screw holes, locking screws, locks Tight frame, heat exchange plate, serpentine heat dissipation pipe, heat conduction pipe, heat conduction plate, connection groove, connection block, ear plate and fixing hole; the invention uses double-layer protection components to protect the high-voltage varistor, which improves the high-voltage varistor. The resistance to pressure and impact resistance reduces external damage, prolongs the service life of high-voltage varistors, reduces the burden on the pins by using a fixed plug-in method, reduces the risk of pin bending and breaking during use, and avoids The problem of positional deviation and falling off of the high-voltage varistor improves the connection stability of the high-voltage varistor.

The invention discloses a fully-packaged internal insulation semiconductor device. The device comprises a semiconductor main body, a collector electrode pin, a base electrode pin, an emitter electrode pin, a first insulation inner shell, a second insulation inner shell, a limiting block, a positioning hole, a positioning column, a limiting groove, a limiting frame, a first heat conduction rubber sleeve, a second heat conduction rubber sleeve, a mortise, a tenon part, a groove, a convex block, a first insulation outer shell, a second insulation outer shell, a heat dissipation grid groove, a connecting lug plate, a connecting column, a connecting screw hole and a connecting screw. A sleeve hole, a rubber sleeve, a frame groove, a convex frame, a mounting plate and a mounting hole; according to the invention, a fully-packaged internal insulation structure is adopted, so that the problems of electric leakage and short circuit of the semiconductor device after the insulation layer is damaged are avoided. The working reliability of the semiconductor device is improved, the heat dissipation performance of the semiconductor device is improved, the overheating risk of the semiconductor device is reduced, and the service life of the semiconductor device is prolonged. The device is easy to disassemble after being installed. The maintenance and replacement are convenient, and maintenance cost of the semiconductor device is saved.

The invention provides a low-side driving circuit of a vehicle-mounted relay. The circuit comprises a relay, a triode mirror image circuit, a time-varying resistance circuit, a diode, a controllable switch and a main control unit; the relay comprises a normally open contact and a coil; the triode mirror image circuit comprises an input end, a first output end and a second output end; the input end is electrically connected with the normally open contact, and the first output end and the cathode of the diode are electrically connected with one end of the coil; one end of the time-varying resistance circuit is electrically connected with the second output end; the controllable switch comprises a first end, a second end and a control end; the first end is electrically connected with the other end of the time-varying resistance circuit, and the second end and the anode of the diode are electrically connected with the other end of the coil; and the main control unit is electrically connected with the control end. According to the low-side driving circuit for the vehicle-mounted relay, the triode mirror image circuit is used for forming a current negative feedback circuit, the amplitude of relay coil current rising along with voltage is reduced, and the coil overheating risk is reduced.

The invention provides a heat management system and management method for a hybrid electric vehicle, including an engine cooling circuit, a battery cooling circuit and a motor cooling circuit, wherein: the engine cooling circuit includes a high-temperature radiator, an engine cooling water pump, an engine cooling and the first multi-port valve, the high-temperature radiator and the engine cooling water pump are used to dissipate heat for the engine; the battery cooling circuit includes a second multi-port valve and the battery; the motor cooling circuit includes a low-temperature radiator and a second electronic water pump that are connected in sequence and form a loop , motor controller, motor and the third multi-way valve, the low temperature radiator and the second electronic water pump are used to dissipate heat for the motor, and the motor controller is used to detect the operating condition of the motor; the engine cooling circuit, battery cooling circuit and motor cooling circuit pass through the first A multi-port valve, a second multi-port valve, and a third multi-port valve are coupled to each other to transfer thermal energy between the engine cooling circuit, the battery cooling circuit, and the electric motor cooling circuit.

Disclosed is a high power density integrated PCU module and a liquid cooling design method thereof, including a liquid cooling radiator structural design and a liquid cooling parameter optimization method. The liquid cooling design method solves the problem of overheating of local power chips inside the PCU module due to high integration of the PCU power module, and realizes optimized heat dissipation of the high power density integrated PCU module.

The invention relates to a cylinder head of an internal combustion engine, with at least an integrated exhaust manifold. The exhaust manifold comprises: a, at least two conduits that direct the exhaust gas, which are arranged substantially side by side with respect to each other and are collected at the flow connection portion upstream of the exhaust manifold outlet to the manifold line, respectively, which passes through the wall Of the terminal areas are separated from each other; and b, at least one coolant jacket disposed above and / or below at least and having an upper dividing wall and a lower dividing wall, wherein the at least one coolant jacket and the pipe are separated from each other by a common dividing wall The coolant jacket is passed through the coolant in a fixed flow direction, wherein at least one tab extends between the upper dividing wall and the lower boundary wall in the coolant jacket, which has an upstream flow in the upstream; the influent flow being separated by a flow of coolant, wherein the coolant flow is accelerated downstream of the partition in a first zone of the coolant jacket, wherein the portion of the first zone or tab directly adjacent to the inflow surface is arranged directly at and / or on the mobile connection site and / or the terminal area.