52results about How to "Prevent overcurrent" patented technology

The invention belongs to the technical field of electronic cigarette heating, and particularly relates to an electronic cigarette heating temperature control system and a control method thereof, comprising the electronic cigarette heating temperature control system and the control method thereof, the electronic cigarette heating temperature control system comprises heating temperature control hardware and heating temperature control software, the heating temperature control hardware comprises a heating wire, a sensor, a controller, a display screen and a power supply module, and the heating temperature control software comprises an environment sensing mechanism, a real-time monitoring adjustment mechanism, a temperature feedback mechanism, an energy consumption optimization mechanism and a safety protection mechanism. According to the electronic cigarette heating temperature control system and the control method thereof, the energy consumption of the electronic cigarette is optimized through an energy consumption optimization mechanism, so that the battery energy consumption of the electronic cigarette is greatly reduced, the electronic cigarette can be used for a longer time, and the use duration of the electronic cigarette is prolonged.

The invention relates to the technical field of motor control, in particular to a control method and system for a motor. The method comprises the following steps that a motor main control unit MCU obtains a motor angle parameter by obtaining a corresponding target motor rotating speed set by a receiving user and carrying out angle parameter reverse solution endowing; obtaining a direct axis direction current and a cross axis direction current and carrying out motor load control calculation to obtain a direct axis voltage control quantity and a cross axis voltage control quantity; transmitting the motor angle parameter, the direct axis voltage control quantity and the cross axis voltage control quantity to a space vector pulse width modulation (SVPWM) module and carrying out SVPWM modulation processing to generate a motor rotor control SVPWM waveform; and determining a phase voltage control value applied to each motor winding, carrying out control duty ratio adjustment analysis, and controlling the corresponding rotating speed and direction of each motor at the same time. The operation efficiency and the response speed of the motor can be improved.

The invention discloses a VSG-based low-voltage ride-through hybrid control method for a network-building converter. The method comprises the following steps: acquiring grid-connected point voltage and output current of a grid-forming converter in real time, and judging whether to enter a low-voltage ride-through state according to a grid voltage drop degree; in the initial stage of a fault, a current reference saturation mode is adopted to quickly limit the output current of the converter so as to prevent a power device from being damaged by overcurrent; in the fault duration stage, a dynamic self-adaptive virtual impedance and reactive power reference coordinated regulation mechanism is introduced, so that the converter gradually recovers the reactive power injection capability while limiting the fault current, thereby realizing effective support for the grid-connected point voltage; when the voltage of the power grid drops seriously, the capacity of the inverter can be reserved for the reactive power support by temporarily reducing the output of the active power. According to the method, the current protection and voltage support requirements during the fault period are considered, and the operation stability and the power grid adaptive capacity of the grid-forming converter in the low voltage ride-through process are improved.

The invention belongs to the technical field of circuits, and relates to an output overcurrent protection circuit and method based on a multi-path output flyback high-voltage power supply. According to the invention, the current of the corresponding output branch is acquired in real time through the plurality of output current acquisition circuits; the output over-current trigger circuit is used for comparing the collected current data with a preset threshold value and triggering an over-current protection mechanism once the collected current data exceed the threshold value, and each output branch is provided with an independent output over-current trigger circuit, so that accurate control can be conveniently realized; the over-current protection response circuit is used for gathering all signals output from the over-current trigger circuit, uniformly processing an over-current protection request, and sending an over-current protection signal to the PWM pulse width modulation slow start circuit when the over-current protection request occurs to trigger a power supply protection measure; the PWM pulse width modulation slow start circuit is used for completing soft start of the power supply after output over-current protection occurs in the output branch of any multi-path output flyback high-voltage power supply. And after the soft start is completed, if the current returns to normal, continuing to supply power.

The invention discloses a stability improvement control method for an offshore wind power low-frequency networking system, and the method comprises the steps: designing a low-frequency power grid stability control module in a land M3C converter control strategy, achieving the reasonable distribution of the power of different M3C converters in an offshore wind power low-frequency AC power grid, and avoiding the overcurrent problem; the inertia of an offshore wind power low-frequency networking system can be improved, the stability of a low-frequency power grid during offshore wind power output fluctuation is improved, and the method has a good application prospect.

The invention provides a low-voltage ride-through control method and system for power electronic equipment. The method comprises the steps that the control mode of the power electronic equipment is set to be double-closed-loop control; in the double-closed-loop control mode, according to outer-loop control parameters of the power electronic equipment, instruction values of positive and negative sequence currents of outer-loop control are calculated; carrying out amplitude limiting on the instruction values of the positive and negative sequence current, and carrying out vector fusion on the instruction values of the positive and negative sequence current after amplitude limiting to obtain the instruction values of the positive and negative sequence current after the maximum value is limited; performing positive and negative sequence current control according to the positive and negative sequence current instruction value after the maximum value is limited, and completing low-voltage ride-through; vector fusion is carried out on the instruction values of the positive sequence current and the negative sequence current after amplitude limiting, fault current suppression based on the low voltage ride through process can be achieved, the large overcurrent phenomenon is avoided, tripping conditions are reduced, and it is guaranteed that low voltage ride through can be achieved with high probability on the premise that normal control strategy logic is not affected.

The invention provides a voltage environment self-adaptive adjusting method and system of a plug-in adapter, and is applied to the field of electric data processing. Under-voltage compensation and over-voltage compensation can be automatically performed according to actual voltage conditions through a dynamic voltage compensation mechanism, so that the adapter can still maintain stable output in an extremely low or extremely high voltage environment, and adapter damage caused by abnormal voltage is avoided; meanwhile, key element parameters such as the turn ratio, the magnetic flux density and the saturation current of the transformer are tested, it is ensured that the elements work within the design range, in combination with activation of the active clamping circuit, the problems of voltage spikes and overcurrent can be effectively solved, the service life of the key elements is prolonged, and damage is avoided.

The invention discloses a data reading circuit and method of a memorizer and the memorizer, the circuit comprises a comparison output unit and a circuit control unit, the comparison output unit comprises a pseudo current tube and a latch pair tube, and the comparison output unit is used for obtaining a pre-charging signal and a data signal; the pre-charging signal is used for controlling the output node voltage of the latch pair transistor to be in a pre-charging state or a data reading state according to the pre-charging signal; the current control unit comprises a transmission gate, and is used for obtaining a control signal of the transmission gate, so as to control the voltage of an output node of the latch pair transistor to discharge through the pseudo current tube according to the control signal, a pre-charging signal and a data signal, or control the voltage of the output node of the latch pair transistor to be stabilized at a first voltage and a second voltage, data reading is facilitated; therefore, by introducing the transmission gate circuit, the voltages of the output nodes are rapidly discharged, and the voltages of the two output nodes are respectively stabilized at the first voltage and the second voltage through the latch pair transistors, so that the power consumption of the circuit is reduced.

The invention discloses a battery electric vehicle electric quantity management control method and system and a battery electric vehicle, and belongs to the technical field of battery electric vehicles, and the method comprises the steps that a battery management system (BMS) calculates the maximum power P1 allowed to be output to a motor controller (MCU) by a battery and feeds back the maximum power P1 to a vehicle control unit (VCU); the battery management system (BMS) judges whether the battery remaining capacity state (SOC) is smaller than a preset battery remaining capacity state (SOC) threshold value or not, if yes, information that the battery remaining capacity state (SOC) is smaller than the preset battery remaining capacity state (SOC) threshold value is fed back to the vehicle control unit (VCU), and the vehicle control unit (VCU) limits the maximum vehicle speed; a vehicle control unit (VCU) judges the relation between the limited maximum vehicle speed and the actual vehicle speed and controls the power output by a battery to a motor control unit (MCU) according to the judgment result. According to the invention, the cruising ability of the whole pure electric vehicle can be improved.

The invention discloses a power adjusting method, device and equipment and a readable storage medium, an OPS computer determines first power and second power, the first power is the maximum power which can be provided for the OPS computer by an intelligent interaction panel, and the second power is the sum of the maximum system power and the maximum peripheral power which can be consumed by the OPS computer. Afterwards, when the first power is smaller than the second power, that is, when the power provided by the intelligent interactive display device for the OPS computer is smaller than the maximum power consumed by the OPS computer, the current total power of the OPS computer is limited, so that the current total power of the OPS computer is smaller than or equal to the first power. By the adoption of the scheme, the current total power of the OPS computer is limited so that the current total power can be smaller than or equal to the first power, product safety is improved, overcurrent is avoided, the purpose of guaranteeing safety of the OPS computer and the intelligent interactive display device is achieved, meanwhile, a low-end OPS computer does not need to be replaced, and cost is low.

According to the magneto-impedance gradient current sensor and the current measuring and positioning method thereof, four high-sensitivity magneto-impedance sensors with the same characteristics are arranged around a wire through which current to be measured flows, two of the four high-sensitivity magneto-impedance sensors are arranged on the x axis, the other two of the four high-sensitivity magneto-impedance sensors are arranged on the y axis, and the induction direction of the high-sensitivity magneto-impedance sensors is perpendicular to the wire; when current flows through the wire, a magnetic field perpendicular to the wire is generated around the wire, and the four high-sensitivity magneto-impedance sensors respectively measure the magnetic field intensity values of the positions where the four high-sensitivity magneto-impedance sensors are located, so that the current value flowing through the wire and the position of the current are obtained. According to the invention, the current position can be determined while the current value is measured with high precision. The sensitivity and the resolution in the current test can be remarkably improved, and higher-precision detection of the current value and the position of the current value can be realized. And meanwhile, the position and the size of the detected current can be accurately calculated under the condition that the current lead is not contacted and damaged, so that the application scene is wider.

This utility model discloses a charger with a storage battery, which includes a charger body and a mounting housing. The storage battery is installed in the lower part of the mounting housing, a battery management unit is installed on the upper part of the storage battery, and a charging control unit is installed on the upper part of the battery management unit. An input connector is installed at the front end of the mounting housing, and an output unit is installed at the rear end of the mounting housing. By switching the control module and the charging control unit in coordination, bidirectional energy management between the external power supply and the storage battery can be realized. When the external power supply is connected, it can directly power the electronic product and charge the storage battery simultaneously. When the power is off, it automatically switches to power supply from the storage battery. It can also charge the storage battery independently. It has the characteristics of uninterrupted power supply, dual-path operation and multi-path energy management. Combined with a safety protection module, it prevents overcharging, over-discharging, overcurrent and short circuit, improving the applicability and safety of the device in outdoor, emergency and mobile scenarios.

The invention relates to a motor drive control method for preventing battery overcurrent of a new energy automobile, which comprises the following steps of: distinguishing a battery recharging mode and a battery discharging mode according to an automobile state; when the motor is in a battery recharging mode, the maximum allowable kinetic energy feedback torque of the motor is calculated; when the motor is in the battery discharge mode, calculating the maximum allowable discharge driving torque of the motor; carrying out filtering processing on the calculated torque value, and calculating an output torque value; the motor can be effectively controlled only by monitoring the current state of the battery, the overcurrent of the battery can be prevented, and the design cost can be reduced.

The present invention belongs to the technical field of motor system control, and specifically relates to a slip control system of a high-power pulse generator set and a control method thereof. The slip control system comprises: a 2500kw motor, a slip device, a main monitoring PC, a PLC master station and a slip control cabinet and a plurality of slip control devices arranged in the slip control cabinet. The present invention realizes high-parameter and high-precision slip starting mode control, can meet the technical requirements of frequent starting of a high-power pulse generator set and interlocking control of multiple slip control devices, can meet the safety of the unit starting and stably accelerate according to a given current.

The invention relates to the technical field of electric vehicles, and discloses a low-temperature slow charging control method for a pure electric vehicle, which comprises the following steps of: in response to a low-temperature slow charging starting signal, acquiring the current charge state and the current temperature of a battery by a battery management system; if the current charge state is lower than a preset charge threshold value and the current temperature is lower than a preset temperature threshold value, the battery management system sends a maximum allowable discharge power limit value to the vehicle control unit; and the vehicle control unit receives the maximum allowable discharge power limit value, and limits the initial operation power of the battery heating device based on the maximum allowable discharge power limit value, so that the power extracted from the battery by the battery heating device does not exceed the maximum allowable discharge power limit value. According to the invention, power flow among the vehicle control unit, the battery management system, the vehicle-mounted charger and the heater can be managed cooperatively, and over-current and over-discharge faults of the battery are strictly avoided while the low-temperature heating requirement is guaranteed.

This invention belongs to the field of motor system control technology, specifically relating to a rotor short-circuit slip control system and method for a high-power pulse generator set. It includes: an 8500kW motor, a slip device, a main monitoring PC, a PLC master station, a slip control cabinet, and several sets of slip control devices installed within the slip control cabinet. The 8500kW motor is connected to both the slip device and the slip control cabinet. Each slip control device includes: a frequency converter, a slip PLC substation, a communication control module, and a current measurement device. This invention achieves high-parameter and high-precision slip start control, meeting the technical requirements of frequent starting of high-power pulse generator sets and interlocking control of multiple slip control devices. It also ensures safe start-up of the unit and stable acceleration according to a given current.

The invention belongs to the technical field of capacitors, and provides a segmented capacitor device and a control method thereof, and the segmented capacitor device comprises a capacitor segment, a control segment, and a butt joint segment. And the capacitor section, the control section and the butt joint section are respectively connected end to end. According to the invention, the capacitor device is divided into the capacitance section, the control section and the butt joint section, so that the modular design is realized. According to the design, each part can be independently maintained, replaced or upgraded, and the whole device does not need to be disassembled, so that the maintenance cost is greatly reduced, and the maintenance time is greatly shortened.

The present invention provides a UPS system, including a box body, the rear side of the box body is a U-shaped bracket; a battery pack station is arranged in the front middle part of the box body, and a battery pack is fixedly installed in the battery pack station; an energy storage component is also arranged in the box body; the present invention also provides a method for estimating the remaining power of the battery pack of the UPS system, including the following steps: detecting and obtaining the battery parameter information of multiple single lithium batteries in the battery pack, and estimating the battery SOH value; correcting the initial capacity value of the battery; obtaining the sampled current value of the battery pack for integral calculation to obtain the charge change of the battery pack; judging the battery charging and discharging state and correcting the charge change; iteratively calculating and outputting the SOC estimation value. The present invention has stable connection, high safety performance, good heat dissipation performance, and can realize the measurement of various performance parameters of the battery, so as to achieve the purpose of monitoring the performance state of the battery pack. At the same time, the UPS system described in the present invention has stable connection, high safety performance, and good heat dissipation performance.

The utility model relates to a top cover assembly, an energy storage device, an energy storage module and electric equipment. The top cover assembly comprises a flow collecting disc, a cover body and a folding tubular connecting component, wherein the flow collecting disc is of a disc-shaped structure. The cover body is of a disc-shaped structure, and a pole is arranged on the cover body in a penetrating mode. One end of the folded tubular connecting member is electrically welded with the collector plate, the other end of the folded tubular connecting member is welded with the pole, the folded tubular connecting member can be stretched, compressed and bent along the length direction, and when the folded tubular connecting member is in a compressed state, at least part of the folded tubular connecting member sections are mutually nested; the cover body and the flow collecting plate are oppositely arranged, and the projection of the cover body on the flow collecting plate and the flow collecting plate are concentrically arranged. The top cover assembly is easy to install, and the concentricity of the cover body and the shell can be guaranteed when the cover is covered.

The application discloses a PFC-LLC resonant switching power supply, which comprises a PFC circuit and an LLC circuit, an input end of the PFC circuit is connected with an AC input interface, an output end of the PFC circuit is connected with an input end of the LLC circuit through a high-voltage bus, an output end of the LLC circuit is connected with a DC output interface, and the PFC-LLC resonant switching power supply further comprises a bus voltage sampling circuit, a fault detection circuit, a first enabling control circuit and a second enabling control circuit, an input end of the first enabling control circuit is connected with an output end of the fault detection circuit, an output end of the first enabling control circuit is connected with a voltage sampling end of a PFC control unit of the PFC circuit, a first input end of the second enabling control circuit is connected with the output end of the fault detection circuit, an output end of the second enabling control circuit is connected with a voltage feedback input end of an LLC control unit of the LLC circuit, an input end of the bus voltage sampling circuit is connected with the input end of the LLC circuit, and an output end of the bus voltage sampling circuit is connected with the voltage feedback input end of the LLC control unit.

The utility model discloses a control circuit of heat dissipation equipment and the heat dissipation equipment. The control circuit comprises a temperature-sensitive diode module, a signal sampling and conditioning module, a comparator module, a first switch module and a second switch module which are sequentially connected in series. The temperature-sensitive diode module comprises a plurality of temperature-sensitive diodes which are connected in series. The first switch module comprises a first triode, the second switch module comprises a second triode, and the first triode and the second triode are switched off or switched on in response to an output signal of the comparator module; when the heat dissipation assembly is in a non-working state, the first triode is closed, and the second triode is disconnected; when the heat dissipation assembly is in a working state, the first triode is disconnected and the second triode is closed. According to the control circuit of the heat dissipation device, the characteristic that the conduction voltage drop of the temperature-sensitive diode changes along with the temperature is utilized, so that the voltage output by the temperature-sensitive diode module changes along with the change of the temperature, and then the heat dissipation assembly is controlled to be turned on or turned off.

The invention provides a micro-nano satellite multi-constraint fine control method based on actuator dynamics, and belongs to the field of spacecraft control, and the method comprises the steps: considering the electromechanical characteristics of a reaction wheel, and building a micro-nano satellite attitude deep coupling model containing the dynamic characteristics of the reaction wheel; aiming at reaction wheel axle friction and counter electromotive force interference, designing a double-interference observer to accurately estimate the reaction wheel axle friction and counter electromotive force interference; designing a nonlinear state-dependent obstacle function to convert a constraint state into a tracking control variable according to the star rotating speed and reaction wheel current physical constraint; and a composite controller is constructed by combining a double-interference observer and a nonlinear state-dependent barrier function, and the design of the high-precision controller of the micro-nano satellite is completed. According to the method, the problem of various physical constraints in micro-nano satellite control can be solved, the interference of the reaction wheel is compensated, and the method has the characteristics of high reliability and high accuracy.

The invention relates to the technical field of Vienna rectifiers, in particular to a control method for improving harmonic power grid input adaptability of a Vienna rectifier, which comprises the following steps of: performing coordinate transformation on acquired three-phase power grid voltage and input current to obtain voltage and current signals under a fundamental wave rotating coordinate system, extracting a fundamental wave current error signal, and calculating the harmonic power grid input adaptability of the Vienna rectifier; the method comprises the following steps: acquiring a current error component of each harmonic, converting the current error component into a rotating coordinate system corresponding to each specified harmonic to obtain the current error component of each harmonic, and in each harmonic rotating coordinate system, independently controlling the current error component of the corresponding harmonic by adopting a proportional-integral controller to generate a control voltage component of each harmonic; inversely transforming the control voltage component of each harmonic to a fundamental wave rotating coordinate system, and superposing to form a total harmonic compensation voltage; according to the invention, by adopting the control method of combining the self-adaptive loop parameters with the bus lifting strategy, the adaptability of the input current of the rectifier along with the power grid voltage under the harmonic power grid voltage is enhanced, so that the problem of overcurrent of the rectifier under different working conditions is avoided.

The utility model relates to the technical field of COB light sources, and particularly discloses a constant-voltage type double-color flip COB light source, which comprises a COB substrate, and the COB substrate is provided with a plurality of power supply bonding pads, a plurality of sequentially connected warm light chip bonding pad groups, a plurality of sequentially connected cold light chip bonding pad groups and a plurality of constant-voltage IC bonding pads. The power supply bonding pad, the warm light chip bonding pad group and the cold light chip bonding pad group are all connected with the constant-voltage IC bonding pad, a constant-voltage IC chip is welded on the constant-voltage IC bonding pad, and a warm light chip and a cold light chip are respectively welded on the warm light chip bonding pad group and the cold light chip bonding pad group. According to the utility model, the constant-voltage IC chip is welded on the constant-voltage IC bonding pad to stably adjust the accessed power supply voltage, so that the internal chip is protected from being influenced by high-voltage surge, and the constant-voltage function is realized; in addition, the current of the warm light chip and the cold light chip can be kept constant, the phenomenon of overcurrent or non-lighting is avoided, and the light-emitting effect is good.

The invention relates to the technical field of vehicles, in particular to a vehicle compressor rotating speed control method and device, a vehicle and a storage medium, and the method comprises the steps that whether the compressor required rotating speed of an air conditioning system in the current running state is in a compressor allowable running interval or not is judged; if the required rotation number of the compressor is not in the preset allowable operation interval of the compressor, a current pressure interval is generated according to the condensing pressure and the evaporating pressure of the air conditioning system, and whether the current pressure interval is in a first preset interval or not is judged; if yes, the required revolution of the compressor is adjusted according to the actual temperature of the environment where the vehicle is located until the vehicle is in the allowable operation range. According to the embodiment of the invention, when the required rotation number of the compressor is not in the allowable rotation speed interval of the compressor, the required rotation number of the compressor can be adjusted through the pressure interval where the condensing pressure and the evaporating pressure of the air conditioning system are located, overload and overcurrent of the compressor are avoided, and the operation stability of the air conditioning system is improved.

The utility model provides an MOS tube packaging structure, which comprises a pin, a chip and a bonding wire connecting the pin and the chip, the bonding wire comprises a main body part and a protective layer arranged on at least one part of the outer side of the main body part, and the melting point of the protective layer is lower than that of the main body part. According to the MOS packaging structure provided by the utility model, after the MOS tube is short-circuited, the protection layer is fused before the main body part, so that the connection between the MOS tube and an external circuit is cut off, the overcurrent of the external circuit of the MOS tube is not caused, the overcurrent or fire of the external circuit caused by the short circuit of the MOS tube can be effectively prevented, and the safety of the MOS tube packaging structure is improved.

The invention discloses an intelligent extension socket and a control method thereof.The intelligent extension socket comprises a plurality of sockets, a plurality of relays and a power management control module, the sockets and the relays are connected in series in a one-to-one correspondence mode, and the control method is applied to the power management module and comprises the steps that when the intelligent extension socket supplies power to the outside, electrical parameter values of the sockets are obtained, and dynamically controlling the on-off of the plurality of relays according to the electrical parameter values and preset values so as to control the working states of the plurality of sockets. According to the technical scheme, electrical parameter detection and dynamic control are achieved through the relays and the power management module, the on-off state of each socket is controlled according to the real-time electrical parameter detection result, and long-time overcurrent and overload conditions are effectively prevented, so that tripping of power supply equipment is prevented, and the service life of the extension socket is prolonged.

The embodiment of the application discloses a kind of charge-discharge control system and method, the system includes: charger, LED drive module and energy storage module;Charger is used to convert alternating current into direct current, and output to LED drive module and / or energy storage module;Energy storage module is used to store or release electric energy, and when storing electric energy, charge state signal is sent to LED drive module;LED drive module is used to drive load to work according to the electric energy released by energy storage module when charger is not connected to power supply;When charger is connected to power supply, drive load to work according to the direct current output by charger;LED drive module is also used to forward charge state signal to charger, to indicate that charger adjusts the charging current output to energy storage module.The technical scheme of the embodiment of the application realizes the collaborative control of charge-discharge and load power supply, guarantees the continuous and stable operation of load, and improves the safety and reliability of system.

This invention relates to the field of energy storage system control technology, and discloses an adaptive dynamic reconfiguration integrated control method and device for energy storage systems. This invention achieves pooled management of physical energy storage resources by constructing a virtual energy management platform at the software layer. It combines task performance constraints and multi-objective optimization to achieve dynamic configuration of virtual energy storage units. Through the conversion of logical topology to physical action commands, coupled with a safe topology reconfiguration strategy, it realizes autonomous and online reconfiguration of the electrical connections and operating modes of the energy storage system. Simultaneously, relying on closed-loop adaptive adjustment of comprehensive deviation values, it achieves real-time optimization of the system's operating status, effectively solving the problem of refined management of heterogeneous resources, meeting the grid's demand for rapid and seamless multi-task switching, significantly improving the flexibility, intelligence level, and operating economy of the energy storage system, and adapting to the complex operating requirements of high-proportion renewable energy power systems.

The invention relates to the field of medical care equipment, and discloses a portable electronic cold compress device which comprises a cold compress device shell, a cold compress device cover plate is arranged on the front side of the cold compress device shell, two sets of mounting blocks are arranged on each of the left side and the right side of the cold compress device shell, and binding belts are arranged on the sides, away from each other, of the two sets of mounting blocks. Connecting hook-and-loop fasteners are arranged on the outer sides of the four binding belts, a flexible protection layer is arranged on the front surface of the cold compress device cover plate, fixing plates are arranged on the sides, close to each other, of the four binding belts, and T-shaped movable inserting blocks are arranged on the sides, close to each other, of the four fixing plates. And movable mounting grooves matched with the mounting blocks are formed in the sides, far away from each other, of the four groups of mounting blocks. Through closed-loop control of the temperature sensing module and the main control module, accurate adjustment of the temperature of the cover plate of the cold compress device is achieved, the cold compress temperature is stably maintained in a target range set by a user, and controllability and consistency of the treatment effect are guaranteed.