2138 results about "Refrigeration plant" patented technology

The invention provides a control method and device, refrigeration equipment, electronic equipment and a readable storage medium, and relates to the technical field of refrigeration equipment. When the chamber temperature is larger than the preset temperature threshold value, the inverter compressor is controlled to be started, and the inverter compressor is made to reduce the chamber temperature at the first rotating speed; when the chamber temperature is smaller than or equal to the preset temperature threshold value, the inverter compressor is controlled to stop, the chamber temperature rises under the action of the environment temperature till the chamber temperature is larger than the preset temperature threshold value again, and one-time circulation is formed; the first rotating speed is determined based on the power-on duration ratio in the last circulation. According to the technical scheme, the first rotating speed of the next cycle is dynamically adjusted based on the startup duration ratio in the previous cycle, so that the output power of the inverter compressor is precisely matched with the refrigeration requirement, the inverter compressor operates under the working condition of the optimal rotating speed or operates under the working condition close to the optimal rotating speed, energy consumption of refrigeration equipment is reduced, and the refrigeration efficiency is improved. And the energy-saving effect is better.

The broiler processing refrigeration warehouse comprises a refrigeration warehouse body, a warehouse door is installed on the surface of the refrigeration warehouse body, a controller is arranged on one side of the warehouse door, a gas tank is arranged outside the refrigeration warehouse body, a transmission device is arranged on the other side of the warehouse door, and a temperature sensor is installed beside the transmission device; an in-warehouse bin is formed in the refrigeration warehouse, a partition layer is installed in the in-warehouse bin, a door groove is formed in the wall of the in-warehouse bin, a ladder stand is erected on the partition layer, refrigeration equipment is installed in the in-warehouse bin, and a refrigeration evaporator is placed beside the refrigeration equipment. In the using process, the transmission device is started, and the transmission shaft drives the linkage screw to rotate; the linkage screw drives the first cam on the linkage screw to rotate, then the second cam is pushed through the linkage effect, the movement of the second cam promotes the bracket plate to do vertical displacement along the limiting sliding rod, and finally the scraping cover is driven to scrape and remove ice blocks on the fins. The process can effectively avoid the problem that the heat exchange efficiency is greatly reduced due to the fact that ice accumulated between the fins hinders airflow.

The invention relates to the technical field of refrigeration equipment state monitoring and data analysis, and discloses a freezer remote monitoring and fault prediction system, which comprises the steps of intercepting operation data of a freezer in a door closing silence period, calculating an environment dew point temperature sequence and extracting a unit temperature difference load fluctuation ratio sequence of a refrigeration system; based on the time change rate of the environment dew point temperature sequence and the unit temperature difference load fluctuation ratio sequence, an instantaneous cross bispectrum coupling potential energy sequence representing the nonlinear modulation relation of the time change rate and the unit temperature difference load fluctuation ratio sequence is constructed; then, a two-dimensional phase space hysteresis track is constructed with the environment dew point temperature sequence as the horizontal axis and the instantaneous cross bispectrum coupling potential energy sequence as the longitudinal axis, and the cross bispectrum hysteresis entropy of the dew point driving type load volatility is calculated based on the probability density distribution of the track and the directed circulation area; and finally, judging an operation state and outputting a fault prediction result by verifying whether the entropy value is within a historical reference interval.

The utility model discloses an induction motor, compressor and refrigeration equipment, relates to the motor technical field, the induction motor comprises a stator part, a stator iron core comprises a plurality of stator punching sheets laminated along the axial direction of the stator iron core, each stator punching sheet comprises a stator yoke and a plurality of stator teeth arranged on the inner side of the stator yoke and arranged along the circumferential direction of the stator yoke at intervals, a stator slot is formed between every two adjacent stator teeth; wherein any two intersection points exist between a line segment of the stator punching sheet passing through the circle center and the outer contour of the stator punching sheet, the maximum value of the line segment between any two intersection points is L1, the minimum value of the line segment between any two intersection points is L2, and L1 / L2 is greater than or equal to 1.02 and less than or equal to 1.2, the tooth width of the stator teeth is W1, the maximum slot width of the stator slots is W2, W2 / W1 is greater than or equal to 2.6 and less than or equal to 3.6, the minimum stator yoke width of the stator punching sheet is Y1, the inner diameter of the stator punching sheet is L3, and Y1 / ((L1-L3) / 2) is greater than or equal to 0.3 and less than or equal to 0.45. According to the induction motor, the efficiency of the induction motor can be improved, and the calorific value is reduced.

The invention discloses a motor, a compressor and refrigeration equipment, and relates to the technical field of permanent magnet motors, the motor comprises a stator iron core and a rotor iron core, rotor holes are formed in the inner circumference of the stator iron core, the number of stator grooves is Q, the width of each stator groove opening in the circumferential direction is W, and the minimum radius of each rotor hole is R; an inter-pole groove is concavely arranged between every two adjacent magnetic steel grooves and on the periphery of the rotor core, n harmonic grooves distributed at intervals are further concavely arranged on the periphery of the rotor core in sequence, central angles of the n harmonic grooves are A1, A2, and An in sequence on the circle center of the rotor core, a central angle of the inter-pole groove is As, and the number of poles of the motor is 2P, and the formula is satisfied. The technical scheme provided by the invention aims to suppress harmonic waves, reduce torque pulsation and further reduce the operation noise of the motor.

The invention discloses a motor, a compressor and refrigeration equipment, and relates to the technical field of refrigeration equipment, the motor comprises a rotor and a stator, the rotor is rotatably arranged in the stator, the thickness of a permanent magnet in the magnetizing direction is hm, and the coercive force is Hcj; the number of poles of the rotor is p; the stator comprises a stator core, the stator core comprises a plurality of first stator punching sheets and a plurality of second stator punching sheets which are laminated, the first stator punching sheets are made of silicon steel materials, and the total length of the first stator punching sheets in the axial direction of the stator is h1; the second stator punching sheets are made of amorphous alloy materials, the total length of the second stator punching sheets in the axial direction of the stator is h2, and at least one first stator punching sheet is located at the lowest end of the axial direction of the stator iron core. According to the technical scheme provided by the invention, balance is found between reservation of the low iron loss advantage of the amorphous alloy material and realization of reliable assembly of the stator and the main shell through relevant parameter constraints, so that the amorphous iron core can be prevented from being extruded, the cost is reduced, and the energy efficiency of the compressor is improved.

The invention discloses an efficient refrigerating machine room energy-saving automatic control system based on reinforcement learning, and the system comprises the following modules: an operation data collection module which is used for collecting key equipment operation parameters and generating unified time sequence data; the energy consumption modeling module constructs energy consumption mathematical models of the water chilling unit, a water pump and a cooling tower and stores the energy consumption mathematical models into a database; the cooling capacity prediction module is used for predicting the future cooling capacity demand based on the historical data and the environmental parameters; the feed-forward optimization module is used for optimizing power distribution by using an adaptive particle swarm algorithm and generating control parameters; the state correction module automatically adjusts the running state according to the running efficiency deviation condition; the cooling strategy optimization module introduces an improved DSAC algorithm to optimize a cooling control strategy; and the instruction deployment module deploys the strategy to an actual system and outputs a regulation and control instruction. The energy efficiency management level of the refrigerating machine room is improved, and integration of energy conservation and intelligent control is achieved.

The invention relates to the technical field of refrigeration equipment control, in particular to a wine cabinet compressor self-adaptive control method and system based on environmental parameters. The method comprises the steps that the external environment temperature, the internal actual temperature and the target storage temperature set by a user of the wine cabinet are collected in real time; an environment thermal potential energy index representing external environment thermal invasion intensity is constructed by calculating static deviation characteristics and dynamic change rate characteristics of the environment temperature; and correcting a proportionality coefficient of a PID control algorithm in real time based on the environmental thermal potential energy index, calculating a compressor control quantity through the PID algorithm in combination with a preset integral coefficient and a differential coefficient, mapping the compressor control quantity into a target operation frequency, driving the wine cabinet compressor to operate, and realizing self-adaptive control of the wine cabinet compressor based on the environmental parameters. According to the method, the environment thermal load change can be actively sensed, the control lag is eliminated, the smoothness of steady-state operation is considered while the thermal shock is inhibited, and the control precision of the wine cabinet compressor is improved.

The utility model discloses refrigeration equipment, and belongs to the technical field of electrical equipment. The refrigeration equipment comprises a box body, a refrigerating chamber, a freezing chamber and a wide variable-temperature chamber, the first middle partition plate divides an inner cavity of the refrigerating chamber into two refrigerating cavities, a first air outlet flow channel is formed in the first middle partition plate, and first air outlets are formed in the two side walls of the first middle partition plate correspondingly; the second middle partition plate is arranged between the freezing chamber and the wide variable-temperature chamber, a second air outlet is formed in the second middle partition plate, the freezing chamber is communicated with the second air outlet flow channel through the second air outlet, and the second air outlet is formed between the second middle partition plate and the rear wall of the freezing chamber; and the air guide piece is arranged in the wide variable-temperature chamber, a fourth air outlet flow channel is formed in the air guide piece, the fourth air outlet flow channel communicates with the air outlet cavity, a fourth air outlet is formed in the air guide piece, and the fourth air outlet communicates with the fourth air outlet flow channel and the wide variable-temperature chamber. The refrigeration equipment provided by the utility model can give consideration to the ultrathin specification, sufficient storage capacity and stable refrigeration performance.

The invention provides a safety monitoring method and system for deep well heat damage, relates to the technical field of deep well safety, and solves the technical problems of high energy consumption and insufficient monitoring precision of deep well high-temperature heat damage treatment in the prior art. The method comprises the following steps: constructing a heat damage risk prediction model based on a machine learning algorithm, inputting real-time deep well environment data into the heat damage risk prediction model, and outputting a current heat damage risk level; based on the current heat damage risk grade, refrigerating equipment and a ventilation system are dynamically controlled, and the environment is cooled; and waste heat generated during operation of the refrigeration equipment and the mine equipment is recycled, and stepped recycling and power generation treatment are conducted on the waste heat. The method is used for the full-period operation process of deep well mineral resource exploitation, and is particularly suitable for core production links such as the deep well tunneling stage and the stoping operation stage.

The invention discloses a compressor refrigeration and fluorine pump refrigeration dual-circulation system, and relates to the technical field of refrigeration equipment, the compressor refrigeration and fluorine pump refrigeration dual-circulation system comprises a compressor refrigeration system and a fluorine pump refrigeration system, and the compressor refrigeration system and the fluorine pump refrigeration system are coupled to form the dual-circulation system for cooling electronic components; the compressor refrigerating system comprises a compressor, a condenser, a liquid storage device, a thermostatic expansion valve, a plate heat exchanger and a gas-liquid separator. The compressor, the condenser, the liquid storage device, the thermostatic expansion valve, the plate heat exchanger and the gas-liquid separator are sequentially connected to form a closed loop. The operation of the double-circulation system is controlled through the fluorine supply temperature collected by the temperature sensor installed at the inlet of the cold plate assembly, the fluorine pump refrigeration system conveys a certain flow of refrigerant to the cold plate assembly for heat exchange, and the refrigerant flowing out of the cold plate assembly exchanges heat with the compression refrigeration system through the plate heat exchanger. And the opening balance system is adjusted to output cold energy to the cold plate assembly.

The invention discloses a fan power consumption estimation method and refrigeration equipment. The method for estimating the power consumption of the fan comprises the following steps of: sampling operation parameters of the refrigeration equipment for calculating the power of the fan by taking a time step as a unit, calculating the real-time power of the fan, and performing integral accumulation on the real-time power at each sampling moment to obtain the power consumption of the fan; if the heat exchanger corresponding to the fan at the current sampling moment is in a non-defrosting state, obtaining previous defrosting operation time and current defrosting interval time, and inputting the previous defrosting operation time and the current defrosting interval time into a frosting grade evaluation model to obtain a current frosting grade; meanwhile, the real-time environment temperature and the fan rotating speed are obtained, and the fan reference power is obtained through calculation; and based on the frosting grade and the fan reference power, compensation power is obtained through calculation, and the sum of the fan reference power and the compensation power serves as the real-time power of the fan at the current sampling moment. According to the method, more accurate real-time power and power consumption of the fan can be estimated.

The invention relates to the technical field of refrigeration equipment intelligent supervision, and discloses a refrigeration equipment operation supervision method and system based on multi-dimensional data analysis, and the method comprises the steps: collecting multi-dimensional operation data of refrigeration equipment; remote start-stop control and operation parameter adjustment are carried out on the equipment, and a control task is automatically executed based on a preset schedule; monitoring equipment states in real time, setting dynamic early warning thresholds according to equipment types and working conditions, and performing graded early warning; fusing and analyzing the multi-dimensional data, generating a correlation analysis chart and calculating a comprehensive energy efficiency ratio; and an operation strategy is dynamically optimized through a data driving model, and the optimal number of water chilling units, the chilled water temperature and the cooling tower fan rotating speed are solved. The system corresponds to the method. According to the application, the problems of single traditional supervision data, low control efficiency, inaccurate early warning and the like are solved, closed-loop supervision is realized, the equipment operation efficiency is improved, and the energy waste is reduced.

The utility model discloses a bearing, compressor and refrigeration equipment, and relates to the technical field of compressors, the inner wall of the bearing is provided with a plurality of first oil grooves and a plurality of second oil grooves, the plurality of first oil grooves all penetrate through one end face of the bearing, the plurality of second oil grooves all penetrate through the other end face of the bearing, and in the rotation stroke of a crankshaft, the first oil grooves are communicated with the second oil grooves. A communicating groove in a crankshaft of the compressor is provided with a first position communicating with the multiple first oil grooves and a second position communicating with the multiple second oil grooves. The first oil grooves are evenly distributed in the circumferential direction of the bearing, the second oil grooves are evenly distributed in the circumferential direction of the bearing, no matter where the crankshaft is located, lubricating oil can smoothly enter the first oil grooves and the second oil grooves at the same time, and force acting on the bearing is the same in the circumferential direction; instantaneous pressure unbalance is avoided, and therefore excitation to the bearing is reduced.

The invention relates to the technical field of refrigeration equipment, and discloses a refrigerator which comprises a refrigerator body, a door body and an ice maker. The box body comprises a box shell and an inner container, and a refrigeration cavity is formed in the inner container; the ice maker is arranged in the refrigeration chamber; the ice maker comprises a water injection unit, a rack and ice cube trays, the water injection unit is connected with the inner container, the rack is mounted on the water injection unit, and the ice cube tray is hinged in the rack; wherein the water injection unit comprises an end cover and a water injection pipe; the number of the end covers is at least two, the end covers are sequentially arranged on the inner container, and every two adjacent end covers are detachably connected. The water injection pipes and the end covers are arranged in the same number, and the water injection pipes are connected with the end covers in a one-to-one correspondence mode. By arranging the end covers which are detachably connected, the water injection pipes are connected with the end covers in a one-to-one correspondence mode, the modular structural design of the water injection units is achieved, the end covers of the water injection units of different specifications can be commonly used, the specification structures of the end covers can be subjected to unified batch production, and then the production cost is reduced.

The utility model discloses a crankshaft, compressor and refrigeration equipment relates to compressor technical field, wherein crankshaft comprises eccentric part and two shaft section respectively arranged on the eccentric part both sides, at least one shaft section is provided with a plurality of communication groove, the inner wall of the bearing of compressor is provided with first oil groove and second oil groove that extend along the axial direction of bearing, in the rotating stroke of the crankshaft, the communicating grooves are provided with first positions communicating with the first oil grooves in the corresponding bearings and second positions communicating with the second oil grooves. The multiple communicating grooves are evenly distributed in the circumferential direction of the shaft section at intervals, no matter where the crankshaft is located, lubricating oil can smoothly enter the multiple communicating grooves at the same time, force acting on the shaft section is the same in the circumferential direction, instantaneous pressure unbalance is avoided, and excitation to the crankshaft is reduced.

The invention provides a control method of refrigeration equipment and the refrigeration equipment. The control method comprises the steps that a signal indicating whether the refrigeration equipment needs to make ice or not is obtained; if yes, an ice making mode is started, whether the temperature in the refrigerating chamber reaches the first starting point temperature or not is obtained, if yes, the ice making mode is stopped, and an intermediate refrigerating mode is conducted on the refrigerating chamber; if not, continuing to operate the ice making mode; and if not, a conventional refrigeration mode is carried out on the refrigeration chamber. According to the control method, the duration of stopping cold supply of the refrigeration chamber is changed by controlling the temperature of the starting point of the compressor, and then the requirement of the refrigeration chamber for refrigeration is controlled, so that smooth ice making is guaranteed, and the use experience of a user is improved.

The invention provides a magnetic suspension integrated energy-saving refrigeration compressor, and relates to the technical field of refrigeration equipment, the magnetic suspension integrated energy-saving refrigeration compressor comprises a main body assembly, and the two ends of the main body assembly are in threaded connection with volute assemblies; the two volute assemblies are connected through a gas-liquid circulation assembly, a magnetic suspension motor unit is installed in the main body assembly, an impeller assembly is in driving connection with the interior of the magnetic suspension motor unit, and a magnetic suspension control module and a motor monitoring module are installed on the two side walls of the main body assembly respectively. Full magnetic suspension supporting is adopted, mechanical friction is avoided, energy is saved, consumption is reduced, the service life of a unit is prolonged, and operation noise is reduced. The integrated structure is matched with the sealing piece, gas and liquid leakage is prevented, gas circuit and system circulation is optimized, and the refrigeration energy efficiency is improved. The stable and efficient operation of the compressor is guaranteed through the wear resistance of the impeller and real-time monitoring and regulation of the intelligent module.

The invention discloses a refrigeration equipment energy-saving control method and system based on a computer, and relates to the technical field of refrigeration control, and the method comprises the steps: firstly, carrying out the precise evaluation of the current operation state of a refrigeration system through the real-time fusion of multi-source sensor information and external event information; based on this, a mechanism for prospective modeling and quantification of immediately occurring and future predictable disturbance events is introduced, and the discrete and pulsed disturbances are converted into continuous and accurate prediction of future thermal loads. And then, jointly inputting the evaluation result of the current state of the system and the prediction result of the future disturbance influence into a dynamic system thermodynamic model for deduction. And finally, based on the structured optimization framework, comprehensively weighing the energy consumption cost, the temperature control precision and the equipment operation constraint, and carrying out global optimization solution so as to generate and execute an optimal control instruction. In this way, strict temperature control requirements can be met, and meanwhile system energy consumption and equipment loss can be reduced to the maximum extent.

The application discloses a refrigeration equipment, and ice moving equipment includes a cabinet, a first refrigeration chamber, a second refrigeration chamber, an ice making assembly, an ice taking assembly and an ice moving assembly. The ice making assembly is arranged in the first refrigeration chamber; the ice taking assembly is arranged on the second door body; the ice moving device includes an ice moving channel, an ice moving part and an ice moving assembly, the ice moving part is arranged on the first door body, the ice moving channel includes a first sub-channel and a second sub-channel which are sequentially communicated, the first sub-channel is arranged on the first door body, the second sub-channel is arranged on the second door body and is communicated to the ice taking assembly, and the first sub-channel is also communicated to the ice moving part; the ice moving assembly drives the ice block to move from the ice moving part to the ice moving channel. The refrigeration equipment avoids occupying the space of the second refrigeration chamber for ice making and storage in the second refrigeration chamber, the second sub-channel is arranged on the second door body, the ice moving part and the first sub-channel are arranged on the first door body, the internal space of the first refrigeration chamber and the second refrigeration chamber is not occupied, and the volume rate of the refrigeration equipment is further improved.

The invention provides refrigeration equipment, a control method and a control device, and relates to the technical field of refrigeration control, and the control method is suitable for a refrigeration system with double refrigeration circuits and a cooling water heat exchange circuit. The refrigeration equipment comprises a first refrigeration loop, a second refrigeration loop and a first heat exchange loop. Based on the environment load signal, the start and stop states of the first compressor and the second compressor are dynamically controlled, and energy efficiency scheduling under different loads is achieved; the air suction and exhaust parameters and the liquid outlet temperature of each refrigerating circuit are collected, the superheat degree is calculated, the opening degree of an electronic expansion valve is adjusted, and stable liquid supply of an evaporator is ensured; meanwhile, the opening degree of an electric adjusting valve of each plate heat exchanger is controlled according to the exhaust temperature or pressure, and the condensate water flow is adjusted; and condensation control is further optimized in combination with liquid outlet temperature feedback. According to the method, efficient operation and condensation decoupling of the system under different load working conditions can be achieved, and the overall refrigeration performance and stability are improved.

The invention relates to a defrosting control method and device, refrigeration equipment and a storage medium. The method comprises the steps that when the refrigeration equipment is in a defrosting mode, whether defrosting is completed or not is comprehensively judged based on the defrosting temperature of an evaporator in an evaporator bin and the heating humidity of a heater, and it is accurately determined that defrosting is completed only when the defrosting temperature reaches the preset temperature and the heating humidity reaches the preset humidity; compared with a traditional defrosting strategy depending on timing control or based on the time interval, the defrosting ending moment can be more accurately determined based on the defrosting temperature and the heating humidity so that the refrigerating equipment can quit the defrosting mode when defrosting is just completed, excessive defrosting or insufficient defrosting can be avoided, and the refrigerating equipment can be controlled to quit the defrosting mode. The problem of excessive defrosting or insufficient defrosting caused by an existing defrosting method is solved.

The application discloses a refrigeration equipment, and ice moving equipment includes a cabinet, a first refrigeration chamber, a second refrigeration chamber, an ice making assembly, an ice taking assembly and an ice moving assembly. The ice making assembly is arranged in the first refrigeration chamber; the ice taking assembly is arranged on the second door body; the ice moving device includes an ice moving channel, an ice moving part and an ice moving assembly, the ice moving part is arranged in the first refrigeration chamber, the ice moving channel includes a first sub-channel and a second sub-channel which are sequentially communicated, the second sub-channel is arranged on the second door body and is communicated to the ice taking assembly, the first sub-channel is communicated to the ice moving part, and the ice moving assembly drives ice blocks to move out of the ice moving part to the ice moving channel. The refrigeration equipment of the application avoids occupying the space of the second refrigeration chamber for ice making and storage in the second refrigeration chamber, the second sub-channel is arranged on the second door body, the internal space of the second refrigeration chamber is not occupied, and the volume rate of the refrigeration equipment is further improved.

The invention discloses a refrigeration control method based on inverter compressor control, which relates to the technical field of refrigeration equipment control, and comprises the following steps: acquiring operation data of a refrigeration system according to a preset period, and extracting a thermal response characteristic representing a cooling rate attenuation acceleration by performing differential processing on an indoor temperature; and calculating a thermal rebound sensitivity characteristic by combining the frequency change gradient. A thermal inertia potential energy index representing the heat storage load of the enclosure structure is generated through time domain accumulation processing, a nonlinear drift modulation model is constructed accordingly, and a virtual set temperature and a dynamic frequency lower limit value are generated. And finally calculating a basic adjusting frequency based on the virtual set temperature, and selecting the maximum value of the basic adjusting frequency and the lower limit value of the dynamic frequency as a target driving frequency. Through cooperation of algorithm soft traction and physical hard lifting, the problem of overshoot oscillation in a complex thermal environment is solved, and temperature control stability and energy saving performance are improved.

The utility model relates to the technical field of refrigeration equipment, and provides a compressor outer cover structure and the refrigeration equipment, the compressor outer cover structure comprises a cover body and a sound absorption part, a back cavity is formed in the side, close to a compressor, of the cover body, the back cavity corresponds to the compressor, and an opening is formed in the side, close to the compressor, of the back cavity; the sound absorption piece covers the opening and is used for making contact with the compressor. The frequency domain width of the action effect of the sound absorption part can be expanded, and the noise reduction performance is optimized.

The invention discloses a test method of refrigeration equipment, a controller and a test device. The method comprises the following steps: determining a first temperature value of a target chamber of the refrigeration equipment; the first temperature value is determined by temperature values of a plurality of preset temperature measuring points in the target chamber under the no-load condition; determining a second temperature value of a target chamber of the refrigeration equipment; the second temperature value is determined by the temperature values of a plurality of preset temperature measuring points in the target chamber under the loading condition; and the temperature stability of the target chamber is determined according to the first temperature value, the second temperature value and a test evaluation standard corresponding to the current loading condition of the target chamber. A first temperature value of a target chamber under a no-load condition and a second temperature value of the target chamber under a loading condition are respectively measured, and the temperature stability of the target chamber is determined based on the first temperature value, the second temperature value and a test evaluation standard corresponding to the current loading condition of the target chamber. Therefore, the capability of maintaining the temperature stability of the target chamber under the specific loading condition can be determined.

The invention discloses a control method and device of refrigeration equipment and the refrigeration equipment, and belongs to the technical field of refrigeration equipment. The control method of the refrigeration equipment comprises the steps that first input of a user is received, wherein the first input is used for determining a to-be-taken object; in response to the first input, obtaining a storage condition corresponding to the to-be-fetched object; the storage condition comprises that the to-be-fetched object exists in the refrigeration equipment or the to-be-fetched object does not exist in the refrigeration equipment; under the condition that the to-be-fetched object exists in the refrigeration equipment, the storage condition comprises storage position information corresponding to the to-be-fetched object; and controlling the refrigeration equipment to enter a working mode corresponding to the storage condition based on the storage condition. According to the control method of the refrigeration equipment, the operation process of a user is simplified, the use convenience and intuition are improved, and the use experience of the user is improved.

A storage unit (10) for use in a cooling appliance (1) and / or in a storage drawer (100) of the cooling appliance (1). The storage unit (10) comprises a main body (11) with a plurality of enclosure walls (111) defining a receiving space (12) for storing moisture-containing products; a sealing lid (15) associated with the main body (11), when in a closed position, restricting air exchange between the exterior of the main body (11) and the receiving space (12), and when in an open position, enabling the placement of items into the receiving space (12); a freshness cartridge (16) comprising a moisture-absorbing material, arranged within the main body (11), adjacent to at least one of the plurality of enclosure walls (111) and / or to the sealing lid (15) such that the freshness cartridge (16) is exposed to the air within the main body (11) when the sealing lid (15) is in the closed position; and a barrier plate (17) with air holes (171), arranged between the freshness cartridge (16) and the receiving space (12), when in use, blocking direct contact of the freshness cartridge (16) with the items in the receiving space (12).

The invention relates to the technical field of refrigeration equipment, and aims to solve the problem that the use experience of a user is reduced due to a slow food material freezing process of an existing air-cooled refrigerator. The invention provides a refrigerator which comprises a refrigerator body, a refrigerator door and a refrigerator door. The freezing drawer is arranged in the freezing chamber, a drawer cavity is formed in the freezing drawer, an air-cooling cold air supply duct is arranged between the top of the freezing drawer and the top wall of the freezing chamber, a cold guide cold air supply duct is arranged at the bottom of the freezing drawer, the cold guide cold air supply duct is located below the drawer cavity, and the freezing drawer comprises a cold guide piece located between the drawer cavity and the cold guide cold air supply duct; the top of the drawer cavity is provided with an upward object taking opening. And the circulating fan is arranged in the air-cooling cold air supply duct, and an air outlet of the circulating fan faces the drawer cavity. According to the invention, the problems are solved.

The application relates to the field of machine room technology, in particular to a temperature control method and device for a machine room, electronic equipment and a medium. The method comprises the following steps: acquiring temperature values of cabinets in the machine room; if any temperature value exceeds a standard temperature value, determining the any temperature value as a first temperature value, and determining the cabinet corresponding to the first temperature value as a first cabinet; determining a target cabinet group based on the first cabinet; generating a first control instruction based on the target cabinet group, and controlling a refrigeration device to perform cooling treatment on the target cabinet group. The application can intelligently monitor the real-time temperature conditions of the cabinets, thereby accurately performing refrigeration on high-temperature equipment and improving the refrigeration efficiency.