2003 results about "Heat generation" patented technology

The invention discloses an energy storage liquid cooling unit control strategy generation method and device based on working condition prediction, equipment and a storage medium, and relates to the technical field of power grids, and the method comprises the steps: building a prediction model based on working condition data of an energy storage system, determining initial prediction power and predicted battery electric quantity based on a preset coefficient and the working condition data, the prediction model is used for correcting the initial prediction power to obtain target prediction power, the predicted heating power of the battery cell is determined based on the equivalent internal resistance of the battery cell and the voltage of the battery cell, the operation parameters of the liquid cooling unit are fitted based on a preset calibration coefficient to obtain the expected refrigerating capacity, and the predicted temperature of the battery cell is determined; adjusting the initial strategy by using the liquid cooling unit control rule and based on the temperature deviation degree and the temperature change rate to obtain a target energy storage liquid cooling unit control strategy so as to control the energy storage liquid cooling unit; the temperature deviation degree and the temperature change rate are data determined based on the preset battery working temperature range and the battery cell predicted temperature, so that the efficiency of generating the energy storage liquid cooling unit control strategy is improved.

The invention provides a lithium ion battery core temperature prediction method based on a finite element model, and the method comprises the following steps: 1, designing an electrochemical test experiment, and constructing a one-dimensional electrochemical model containing a lithium ion battery electrochemical heat production mechanism; 2, designing a lithium ion battery temperature test experiment, obtaining electrochemical parameters, heat transfer characteristic parameters, internal thermophysical parameters and environmental parameters of the battery under different working conditions, and obtaining a temperature change curve of the center position and the surface of the battery; and step 3, based on the heat balance equation, establishing a three-dimensional heat transfer model having the same geometric characteristics as the battery used in the experiment. According to the experimental result in the step 2, the three-dimensional heat transfer model is subjected to non-uniform region division, each region corresponds to one one-dimensional electrochemical model, and the heat production rate per unit volume is calculated by the one-dimensional electrochemical model in the step 1; introducing the heat production rate of each area into a three-dimensional heat transfer model to calculate the temperature distribution of the battery, and designing an experiment to correct a one-dimensional electrochemical model; 4, modifying the operation conditions and heat dissipation conditions of the battery, and calculating and analyzing the temperature difference delta T between the center position and the surface position of the battery under different operation conditions and heat dissipation conditions by using the three-dimensional heat transfer model in the step 3; and 5, measuring the surface temperature of the battery, and calculating the temperature of the center of the battery according to the working condition of the battery in the step 4 and the delta T corresponding to the environment temperature, thereby realizing monitoring of the temperature of the center position of the battery. According to the method, a high-precision algorithm model is constructed and verified by utilizing data accumulated in an earlier-stage experiment, the central point temperature which is difficult to directly measure in the battery is predicted only through real-time and easily-acquired battery surface temperature information, operation condition parameters and heat dissipation conditions, key thermal state information is provided for a battery management system, and the battery management efficiency is improved. The method is used for real-time safety monitoring and thermal management optimization.

The invention relates to the technical field of data center thermal management, and discloses a data center liquid cooling precise temperature control method and system, and the method comprises the following steps: pre-analyzing a calculation task to generate a power consumption prediction sequence; combining the power consumption prediction sequence with the real-time state information of the liquid cooling system, calculating the heat cost of the task at each candidate calculation node through a digital twin model, and selecting a target execution node according to the heat cost; inputting the power consumption prediction sequence and real-time state information into a reinforcement learning controller, and generating a composite coordination action containing a flow regulation instruction and a dynamic power consumption upper limit instruction; and cooperatively controlling the micro-fluidic execution array and the chip power consumption management unit on the target execution node according to the composite coordination action. Through prospective power consumption prediction and two-way cooperative control from the heating end and the heat dissipation end, intelligent distribution and accurate temperature control of thermal loads are achieved, temperature overshoot is effectively restrained, and the overall operation energy consumption of the data center is reduced while the system reliability is guaranteed.

The invention discloses an earth heat flow joint inversion calculation method, device and system, and a storage medium. The method comprises the following steps: 1, obtaining a temperature constraint value; 2, obtaining a thermal parameter constraint value; 3, determining value ranges of thermal conductivity and heat generation rate parameters of each layer section; 4, constructing an initial temperature profile; 5, carrying out inversion optimization to obtain an optimal thermal parameter; and 6, calculating and extracting an earth heat flow value. By adopting the technical scheme of the invention, a high-precision and high-reliability earth heat flow value can be obtained under the constraint of a small amount of measured data.

The invention relates to the technical field of energy storage battery performance detection, and discloses a performance detection device and method for an energy storage battery, and the method comprises the steps: calculating a thermal safety coefficient based on the internal temperature of the battery, the temperature gradient, the Joule heat generation rate and the environment temperature; calculating a voltage safety coefficient based on the battery end voltage, the voltage change rate and the voltage range; according to the thermal safety coefficient, the voltage safety coefficient, the battery expansion strain and the internal pressure, calculating the collaboration reflecting the multi-physical field state coordination; calculating an aging coefficient based on the accumulated current stress, the accumulated cycle index and the high stress duration of the battery; and finally, based on the collaboration, the aging coefficient and the rated current, calculating the target charging and discharging current and performing real-time adjustment. The device comprises a memory and a processor and is used for executing the method. According to the invention, multi-dimensional fusion evaluation and self-adaptive management of thermal, electrical and mechanical states and aging processes of the energy storage battery are realized, and the operation safety and service life of the battery are remarkably improved.

The invention provides a heat dissipation system and energy storage equipment, and belongs to the technical field of heat dissipation. The heat dissipation system comprises a first air duct structure and a second air duct structure, wherein the first air duct structure comprises first air duct paper with a first air cavity, a first air inlet and a first air outlet; the first air cavity is used for accommodating part of a first heating element; the second air duct structure comprises second air duct paper with a second air cavity, a second air inlet and a second air outlet, and the first air duct paper and the second air duct paper are arranged side by side; the second air cavity is used for containing a second heating piece, and the heating value of the second heating piece is smaller than that of the first heating piece. The air inlet fan is arranged at the first air inlet; the reversing fan is arranged at the downstream of the airflow direction of the first air cavity and the upstream of the airflow direction of the second air cavity; and the air outlet fan is arranged at the second air inlet, and the air outlet fan is used for introducing the air flow into the second air cavity and blowing the air flow out through the second air outlet. According to the invention, the uniformity of heat dissipation can be improved, and the aesthetic property of a corresponding product can be improved.

An embodiment relates to a light emitting diode (LED) mask for personal combination stimulation, which is to be worn on a face, and more specifically to an LED mask for personal combination stimulation, which can prevent skin damage due to heat generation caused by light emission in an LED, reduce manufacturing and maintenance costs, and effectively make improvement such as whitening facial skin, reducing wrinkles, in particular, wrinkles around eyes. The LED mask for personal combination stimulation includes a mask unit to be put on the face of a user; and a light irradiation unit installed in the mask unit and including a plurality of LEDs arranged on a substrate, wherein the LEDs comprise multiple types of LED chips to emit light of different wavelengths, and the multiple types of LED chips are configured as a combination LED module in a single support structure and arrange on the substrate.

The invention discloses an SRAM (Static Random Access Memory) memory cell, a static random access memory and a preparation method thereof, and belongs to the field of semiconductors. Channel directions of two transmission gate transistors are set as a first direction, channel directions of two pull-up transistors are set as a second direction, and channel directions of two pull-down transistors are set as a third direction; the third direction and the first direction are crystal orientations of the same family, and the two pull-up transistors are arranged in a sinking manner; active regions of the pull-up transistor and other transistors are staggered so as to improve the heat dissipation capability; in order to manufacture the structure, a corresponding preparation method is designed, in the preparation process, the grid electrode of the pull-up transistor is stepped, so that the grid electrode of the pull-up transistor can be connected with the active region of the transmission grid transistor through a metal silicification technology, the contact resistance is greatly reduced, and the performance of the device is improved. Therefore, the performance of the whole device is improved, and the read-write speed is higher than that of the prior art under the same condition.

Disclosed in the present invention are a scanning box device and an electron accelerator, the electron accelerator comprising an accelerating tube and a deflection coil; the scanning box device comprising a scanning chamber and a scanning box, wherein the scanning chamber is sealingly connected to the scanning box; the scanning chamber is arranged above the scanning box; the accelerating tube is arranged above the scanning chamber; the deflection coil is arranged on the outer side of the scanning chamber; and the scanning chamber is made of a non-metallic material. The present invention can prevent the generation of eddy currents in the scanning box, thus reducing the problems of energy loss and heat generation, improving the performance and stability of the apparatus.

The invention relates to the technical field of electromechanical hydraulic systems, and particularly discloses a low-temperature cold start control method based on high-frequency injection, which comprises the following steps: analyzing a motor state, and carrying out observation and feed-forward compensation on disturbance caused by the motor state to a load torque and a viscosity coefficient through a sliding mode observer algorithm; according to the motor state, obtaining a state equation, constructing an extended sliding mode observer equation, deriving to obtain an observer error equation, and observing the load torque; analyzing the obtained load torque, wherein the motor load torque reflects the oil viscosity; high-frequency current injection, injection frequency control, skin effect enhancement and current amplitude control are carried out in a low-temperature state according to an oil viscosity result, copper loss and a high-frequency magnetic field eddy current effect are used for assisting heat generation, and according to a final oil viscosity result, when electromagnetic heat generation viscosity is reduced and a load is reduced, an injection voltage amplitude is gradually reduced. And after a normal starting condition is reached, switching to normal id = 0 control.

The invention provides a multi-core heat dissipation flexible cable. The multi-core heat dissipation flexible cable comprises an inner sheath, a heat dissipation assembly, a separation assembly and a plurality of cell assemblies, an accommodating cavity is formed in the inner sheath; the heat dissipation assembly is arranged around the periphery of the inner sheath; the partition assembly is located in the containing cavity and comprises a center piece and a plurality of partition pieces, the partition pieces are arranged around the periphery of the center piece, and a core cavity is formed between any two adjacent partition pieces; the plurality of battery core assemblies are arranged corresponding to the plurality of core cavities, the battery core assemblies are located in the corresponding core cavities, each battery core assembly comprises an electric unit and a thermal deformation structure, one side of each electric unit is elastically connected to the center piece, the electric unit can slide relative to the center piece, one end of each thermal deformation structure is connected to the inner sheath, and the other end of each thermal deformation structure is connected to the outer sheath. The other end abuts against the side, away from the center piece, of the electric unit. Wherein the thermal deformation structure is thermally coupled with the electric unit, the thermal deformation structure is configured to be heated to generate elastic deformation so as to allow the electric unit to move to be in contact with the inner sheath, and the heat dissipation assembly is configured to dissipate heat of the electric unit through the inner sheath.

The utility model discloses a drying oven capable of reducing vibration, which comprises an oven body, at least one fan and at least one group of heat generators, and is characterized in that the oven body is provided with a feeding end and a discharging end; a mounting cavity is formed between the feeding end and the discharging end of the box body, a group of air outlets communicated with the mounting cavity are further formed between the feeding end and the discharging end of the box body, and an air return channel separated from the mounting cavity and at least one air return hole communicated with the air return channel are further formed in the box body; the section size of the mounting cavity in the vertical direction is gradually reduced from the position where the fan is mounted to the discharging end in the direction from the feeding end to the discharging end; the fan is arranged in the mounting cavity, close to the feeding end, of the box body, and the air return channel is close to the feeding end and is communicated with an air inlet of the fan; and the heat generator is also arranged in the mounting cavity and is positioned on a flowing path of flowing air formed by the fan.

A system for heating a battery comprising a first switch operably coupled with a power supply. An inductive element, which may be a part of filter, is in operable communication with the first switch and a second switch. The system includes a processor in communication with the switches to execute instructions to control the switches to controllably source current to and from the battery, wherein the sources current to and from the battery may be of arbitrary shapes tuned to harmonics optimized for heat generation.

The invention provides a battery temperature prediction method and system based on a Shenchang differential equation. The method comprises the steps of obtaining multi-source operation data in the operation process of a battery system; performing time interpolation processing on the data, and uniformly mapping the data of different sampling frequencies to a continuous time dimension to obtain a continuous time input feature; respectively constructing global features and discrimination features based on the input features, wherein the discrimination features are used for representing key thermal influence factors such as battery calorific value and cooling medium flow; fusing the global features, the discriminant features and the current temperature state of the battery to construct comprehensive features; and inputting the comprehensive characteristics into a thermodynamic model constructed based on a Shenchang differential equation, and solving a continuous evolution process of the battery temperature through numerical integration to realize temperature prediction one by one. According to the method, the thermodynamic continuous evolution law can be followed, and the space coupling characteristic and the multi-working-condition robustness can be considered.

The present application relates to a kind of composite current collector and its preparation method, belong to secondary battery technical field.The composite current collector provided by the present application has the original structure of sharp cone for shape memory polymer support layer, and the opening of support layer is filled with foaming agent and foaming aid.A kind of composite current collector provided by the present application can reduce weight and improve the energy density of battery.Secondly, the composite current collector provided by the present application increases the heat-sensitive function, which can cut off the electrochemical reaction inside the secondary battery on one hand after the thermal runaway and external impact of battery, and can reduce the heat generation of secondary battery on the other hand when the secondary battery is at high temperature, which has a triple guarantee for the safety performance of battery.

The invention relates to the technical field of fibers, and discloses a thermal insulation polyamide fiber and a preparation method thereof. Polyurethane modified silicon dioxide aerogel with a phase change unit and a heat insulation carrier is prepared, the polyurethane modified silicon dioxide aerogel and epoxidized carbon nanotubes with light absorption and heat generation performance are jointly introduced into PA6 slices, epoxy groups react with carboxyl and amino at the tail end of a PA6 main chain under the melting condition, the dispersity and compatibility of all components in the PA6 slices are improved, and the heat insulation performance of the PA6 is improved. The polyamide fiber prepared by melt spinning not only has good heat insulation performance, but also can utilize the phase change material and the light absorption heating material to store energy and regulate temperature, so that the heat storage and heat preservation performance of the fiber is further improved.

The invention relates to a light driving control system and method based on a 48V system and electronic equipment, and relates to the field of vehicle control. The system comprises a power supply module, an information acquisition module, a central processing module, a communication module and an execution module, the power supply module is used for reducing 48V voltage input by a whole vehicle to obtain preset voltage, and the information acquisition module is used for receiving a light control instruction of the whole vehicle and acquiring a working state of a lamp; the central processing module processes collected data and issues an instruction to the execution module, the communication module achieves information interaction with the whole vehicle and the load lamp, and the execution module provides power supply and drive control for the external load lamp. The system can solve the challenges of a traditional 12V system in the aspects of power output, energy loss, line load and the like, reduces the current intensity, line loss and heat productivity through a 48V system, prolongs the service life of a lamp and a controller, improves the autonomous controllability and the supply chain stability through a domestic chip scheme, and reduces the system cost.

The application provides a rubber composition for tires and a preparation method and application thereof. The rubber composition for tires of the application applies high-molecular-weight smoked sheet rubber, greatly improves mechanical and dynamic properties of vulcanized rubber, adopts neodymium-based butadiene rubber with wear resistance, fatigue aging resistance and lower heat generation, and applies solution styrene-butadiene rubber with higher thermal stability and good flex resistance at high temperatures, and improves comprehensive performance of the formula in multiple aspects. The application adopts super wear-resistant N134 and uses bio-based white carbon black and conductive carbon black, provides super high wear resistance of the formula, reduces heat generation, and makes the tire not fail due to a large amount of heat accumulation in a continuous operation process. The application adopts a high inorganic metal oxide filling amount method, greatly improves a thermal conductivity coefficient of the formula, further improves heat accumulation resistance of the formula, timely discharges heat generated in an extreme condition, and ensures safety of tire operation.

The invention provides a battery thermal runaway early warning method and device, electronic equipment, a storage medium and a vehicle, and the method comprises the steps: taking a normal heat generation parameter and a side reaction parameter of a battery as training data, and carrying out the fitting learning of a heat generation mechanism and a side reaction mechanism of the battery, and obtaining an output value of thermal runaway heat generation, obtaining a thermal runaway prediction model of the battery until the error between the thermal runaway heat production test value and the output value is smaller than a preset error; the thermal runaway prediction model is used for predicting thermal runaway heat production of the battery in different charge states, the current charge state of the battery is obtained, and the thermal runaway characteristic temperature is obtained based on the thermal runaway heat production of the battery in the current charge state; and acquiring the current temperature of the battery, and if the current temperature of the battery is greater than the thermal runaway characteristic temperature, generating early warning information. According to the scheme of the invention, the thermal runaway prediction model is adopted to output the corresponding thermal runaway characteristic temperatures of the battery in different charge states, and the thermal runaway early warning of the battery is performed in combination with the real-time temperature monitoring of the battery, so that the success rate and precision of the thermal runaway early warning are improved.

An electronic device is provided. The electronic device includes a first housing including at least one first heat-generation element, a second housing including at least one second heat generation element, and a thermal hinge assembly configured to rotatably connecting the first and second housings with reference to a hinge axis, wherein the thermal hinge assembly includes a first hollow hinge member, a second hollow hinge member spaced apart from the first hollow hinge member along the hinge axis. a center hinge member disposed between the first and second hollow hinge members along the hinge axis, at least one heat transfer member that passes through the first and second hollow hinge members and the center hinge member, and thermally coupled with the first and second hollow hinge members and the center hinge member, a first rotation guide part coupled with one end of the center hinge member and the first hollow hinge member, and a second rotation guide part coupled with the other end of the center hinge member and the second hollow hinge member.

The invention provides an electrical equipment fire risk assessment system and method for a power distribution network, and relates to the technical field of fire risk assessment, and the method comprises the steps: extracting fault arc features and odd harmonic features of target electrical equipment from a current signal and a voltage signal of the target electrical equipment in the power distribution network; carrying out gradient analysis on the coupling effect of the target electrical equipment due to harmonic heating and load fluctuation thermal shock to obtain a sensitive gradient of thermal runaway generated by the target electrical equipment, and further determining a thermal stability margin of the target electrical equipment under a harmonic distortion working condition; according to the transient current impact value of the target electrical equipment in the nonlinear load fluctuation process, determining an accumulative effect coefficient of thermal aging generated by the target electrical equipment; and then performing fire risk assessment on the target electrical equipment to obtain a risk assessment index of the fire of the target electrical equipment. According to the invention, the method can achieve the evaluation of the fire risk of the electrical equipment under the complex working condition of current and voltage signal distortion caused by a nonlinear load in a power distribution network.

The invention discloses a battery pre-cooling method, device and equipment based on temperature prediction and a storage medium, and relates to the technical field of power batteries, and the method comprises the following steps: determining a heating value prediction value of a power battery based on charging and discharging data of the power battery in a current vehicle; determining a temperature rise predicted value of the power battery based on the calorific value predicted value of the power battery; determining a current cooling demand based on the temperature rise predicted value of the power battery and the current actual temperature; and when the current cooling demand is the pre-cooling demand, starting a cooling system of the power battery in advance so as to carry out pre-cooling treatment on the power battery. By predicting the temperature change state of the battery at the subsequent moment, battery cooling is started in advance based on prediction, the cooling time is prolonged, the battery temperature rise is slowed down, the battery temperature is made to be in a better state, long-time too high temperature of the battery is avoided, battery temperature control is optimized, and the battery performance and safety are improved; meanwhile, impact of sudden battery refrigeration on cabin refrigeration equipment is reduced, and the stability of a cabin air conditioner is improved.

The invention relates to a heat pump device that makes it possible to utilize waste heat from technical processes or from the environment to simultaneously generate useful steam (12) and useful heat. The heat pump device comprises a heat pump module (1), a low-pressure steam generator (2) for generating low-pressure steam (11), a steam jet compressor (3) for generating useful steam (12) from high-pressure steam (10) and the low-pressure steam (11), and a first heat exchanger (4) for providing the useful heat. The heat pump device is suitable for applications where there is a simultaneous demand for both steam and heat.

The invention discloses a rotor disc structure of an axial magnetic flux motor, which comprises a rotor piece arranged on a rotating shaft of a disc type motor, the rotor piece comprises a rotor disc and a carbon fiber layer, the rotating shaft is fixedly sleeved with an inner ring of the rotor disc, and the carbon fiber layer is arranged on an outer ring of the rotor disc to improve the mechanical strength of the rotor disc; the rotor permanent magnet piece is arranged on the rotor disc and provides a permanent magnet; and the compensation insulating part is arranged on the rotor disc, so that the eddy-current loss of the rotor disc in the high-speed rotation process is reduced, and groove gap compensation is provided for the rotor disc. The motor is reasonable in structural design, high in mechanical strength, small in heat productivity and capable of remarkably reducing eddy-current loss and remarkably improving the rated rotating speed. When the rotor disc rotates at a high speed to cut a magnetic induction line of the stator disc, an annular flowing current is generated in the circumferential direction of the mounting through hole, the current at the position can generate heat to cause eddy current loss, the compensation insulation block made of an insulation material enables the current at the position to be disconnected, and thus heat generation and eddy current loss of the rotor disc are reduced.

A system includes: a heat generator obtaining heat from a heat source and having a generator outlet port and a generator return port; a central heating circuit having a heating feed port and a heating return port; a tank having a top portion and a bottom portion, the tank containing a heat storing medium; a first tapping coil immersed in the heat storing medium in the bottom portion of the tank; and a second tapping coil immersed in the heat storing medium in the top portion of the tank The heat generator, second tapping coil, central heating circuit, and first tapping coil are fluidly connected in series to allow fluid to flow from the heat generator via at least one of the second tapping coil, the central heating circuit, and the first tapping coil back to the heat generator The system includes first, second and third three-way valves.

The invention discloses a new energy vehicle safety management system and method based on reinforcement learning. The system comprises a data input module, a power system modeling module, a power battery modeling module, a reinforcement learning algorithm module, a distributed training framework module, an energy management strategy output module and a data storage module. The reinforcement learning algorithm module adopts a reinforcement learning algorithm based on a Transformer agent, can accurately capture long-time sequence association of the state of the hybrid vehicle, and solves the problem that a traditional regular method is rigid in adaptability; through a power system modeling module and a power battery modeling module, a battery health state attenuation model and a heat generation safety constraint are fused in decision making, and a regularization mechanism is matched, so that the risks of large-current discharge, battery overheating and the like can be effectively avoided, and the service life of the battery is prolonged; the distributed training framework module provides a distributed reinforcement learning training framework, so that the strategy reasoning time is greatly shortened, and the millisecond-level control requirement of a real vehicle is met.

The invention discloses a simulated heat source circuit and a simulated heat source device, and relates to the field of heat testing, a plurality of heat production modules can be arranged at different positions of a circuit board, and the heat production conditions of an electronic chip to be tested at different positions in the working process are simulated through the plurality of heat production modules arranged on the circuit board. The power supplies are connected with the heat production modules in a one-to-one correspondence manner, and the voltage output condition of each power supply can be flexibly adjusted according to the actual application condition of the electronic chip in the test process, so that the heat production power of each heat production module is adjusted, and the power consumption of different areas in the simulated heat source circuit can be independently controlled; by independently controlling the heat production amount of each heat production module, the heat production conditions of different types of actual electronic chips such as uniform heat flux chips or non-uniform heat flux chips in the working process can be simulated more accurately, the flexibility is high, and the application range is wide.

The present disclosure belongs to the technical field of battery thermal management. Provided are a control method for a heat exchange apparatus, a heat exchange apparatus, a control valve and a vehicle. The method comprises: on the basis of an equivalent resistance value in a battery equivalent circuit, generating a target control signal for controlling a heat exchange apparatus, wherein the target control signal is used for controlling a duration during which the heat exchange apparatus maintains heat exchange for a first heat generation region of a battery, and a duration during which the heat exchange apparatus maintains heat exchange for a second heat generation region of the battery. In the present disclosure, a control signal is determined on the basis of an equivalent resistance value in a battery equivalent circuit, and a heat exchange apparatus is controlled on the basis of the control signal to perform independent heat exchange on different heat generation regions of a battery, so as to realize effective heat transfer, thereby reducing the internal temperature difference of batteries, helping to prevent local overheating and overcooling, and thus improving the accuracy of battery heat exchange, and also enhancing the temperature uniformity of the batteries.

The invention discloses a self-adaptive partition dynamic temperature control TV backlight lamp panel and a control method thereof, and belongs to the field of TV backlight lamp panels, the self-adaptive partition dynamic temperature control TV backlight lamp panel comprises a PCB, an LED array, a temperature sensor network and a dynamic adjusting module, the PCB is provided with the LED array, the PCB is provided with the temperature sensor network, the temperature sensor network is provided with a plurality of groups of digital temperature sensor modules, and the dynamic adjusting module is connected with the LED array and the temperature sensor network. The LED array is formed by uniformly distributed LED chips; the digital temperature sensor module is arranged between the LED chips, a dynamic adjusting module is arranged on the PCB, and the LED array, the temperature sensor network and the dynamic adjusting module are in communication connection. The temperature of each partition of the LED array in the TV backlight lamp panel is monitored in real time, and the temperature is adjusted through the dynamic adjusting module, so that the service life of the LED is greatly prolonged. According to the invention, invalid heat can be reduced, energy loss is reduced, and brightness fluctuation and color cast of an HDR scene are eliminated by ensuring small temperature difference of partitions.

The invention relates to the technical field of tread rubber, and discloses high-performance tire tread rubber based on a synergistic system and a preparation method thereof.The method comprises the following steps of first-stage mixing, second-stage mixing, third-stage mixing, final mixing and vulcanization molding. By adopting a composite vulcanization system composed of dicumyl peroxide and sulfur and cooperating with zinc methacrylate as a functional auxiliary agent, a dual synergistic cross-linked structure composed of a free radical cross-linked network and an ionic cross-linked network is formed in the vulcanization process, so that the uniformity and stability of the cross-linked network structure of the tread rubber can be effectively improved, and the service life of the tread rubber is prolonged. The reasonable regulation and control of the crosslinking density of the tread rubber in the vulcanization process are ensured, the problem that a traditional single vulcanization system cannot give consideration to the wear resistance and the dynamic heat generation performance is solved, the comprehensive mechanical property and the dynamic use performance of the tread rubber are further improved, and firm chemical combination between the reinforcing filler and rubber molecules is ensured.