2316results about "Defrosting" patented technology

The invention discloses a broiler processing workshop refrigeration house suspended ceiling air cooler which comprises an air cooler body, a suspended ceiling device is installed above the air cooler body, a machine body shell is arranged in the air cooler body, a plurality of protective covers are installed on the surface of the machine body shell, draught fans cover the protective covers, a controller is arranged beside one protective cover, and a dustproof net rotary connection base is embedded outside the protective cover. A water guiding assembly is fixed to the bottom of the machine body shell, even number of auxiliary hanging rods are installed on the surface of the machine body shell, even number of connecting hanging lugs are arranged on the two sides of the machine body shell, and a turbulent flow device is nested in the top of the machine body shell. A cover plate is arranged in the turbulent flow device, and an even number of shaft fixing seats are evenly installed on the two sides of the cover plate. The turbulent flow device is installed on the machine body shell, and the turbulent flow device is made to be perpendicular to the fin planes, so that under the driving of airflow impact, the turbulent flow pieces generate elastic deformation in the fixing base, surrounding air is driven to form local turbulent flow, the continuity of a condensed water film is destroyed, and the frost crystal nucleation and growth rate is delayed; and the stability of the warehouse temperature is indirectly guaranteed.

The invention belongs to the technical field of refrigerator refrigerating systems, and discloses a new-function turbulent flow fan which comprises an air duct, a centrifugal fan, an axial flow fan and an evaporator. The centrifugal fan is arranged in an internal air cavity of the air duct; the axial flow fan is arranged outside the air inlet of the air duct through a bracket in a posture that the axis of an impeller is vertical to the horizontal plane; the system of the turbulent flow fan is configured as follows: when the refrigerator works normally for refrigeration, the centrifugal fan is controlled to operate and the axial flow fan stops rotating, so that air flow is sucked in from the air duct air inlet and exhausted from the air duct air outlet; the support type axial flow fan is installed at the air inlet of the air duct, intelligent switching of the working modes of the refrigerator is achieved, the axial flow fan constructs an air curtain for preventing hot air from entering the air duct at the air inlet of the air duct, the problem that warm flow intrudes into the refrigerator body in the defrosting process is successfully solved, the temperature of an inner container of the refrigerator body is kept stable in the defrosting process of the refrigerator, and the service life of the refrigerator is prolonged. No extra refrigeration is needed to counteract the warm flow influence, and the total energy consumption of the refrigerator is reduced.

The invention relates to the technical field of heat pump units, in particular to a swimming pool heat pump unit with a self-adaptive defrosting function, which comprises a case body, a compressor, a condenser and a fin heat exchanger are arranged in the case body, the swimming pool heat pump unit further comprises a spray pipe, a defrosting water pump and a water pan, and the spray pipe is used for spraying water to the surface of the fin heat exchanger; the water inlet end of the defrosting water pump is connected with a water outlet of the condenser, and the water outlet end of the defrosting water pump is connected with the spraying pipe through a pipeline. The water pan is arranged below the fin type heat exchanger, and the bottom of the water pan is connected with a water inlet of the condenser through a pipeline. Water heated by the condenser is guided to the spraying pipe, then warm water is sprayed to the fin type heat exchanger through the spraying pipe to achieve defrosting, manual intervention is not needed, heat sources can be saved, and the low-power-consumption defrosting effect is achieved.

The invention discloses a control method for defrosting of a parallel flow evaporator, which comprises the following steps of: constructing a multi-dimensional state sensing network, constructing a three-dimensional state sensing matrix by utilizing a distributed temperature sensor array on the surface of an evaporator coil, an air inlet humidity sensor and an inlet and outlet differential pressure type pressure sensor, and acquiring information such as temperature distribution, environment humidity and air pressure difference; through dynamic threshold self-adaptive judgment, based on an environment temperature field, the historical temperature of an evaporator and an icing critical temperature field calculated by a time sequence prediction model, the defrosting triggering condition is judged by combining humidity and an air pressure difference change gradient field; gradient type energy injection defrosting is adopted, in the first-stage defrosting process, the refrigerant flow is adjusted through a proportional electromagnetic valve to conduct directional defrosting, and in the second-stage defrosting process, a compressor is closed, a fin gap shape memory alloy heating network is activated, and latent heat of a phase change material is released to conduct uniform defrosting. And performing multi-physical field cooperative regulation and control, constructing a coupling model, and adjusting the heating power and pulse modulation duty ratio sequence.

The invention relates to the technical field of refrigeration control of refrigeration houses, and discloses a clustered defrosting control method based on EC motor refrigeration houses, which is applied to a refrigeration house cluster (N is greater than or equal to 3) consisting of N air coolers carrying EC motors, and each EC motor is provided with an input power detection device. The clustered defrosting control method comprises the following steps that S1, after a cold storage cluster is started, a defrosting detection initialization stage is started; an input power detection device of an EC motor is utilized, the defrosting requirement is judged through initial fixed rotating speed power detection and periodic power comparison, then according to the real-time temperature of the refrigeration house and the frosting degree of each air cooler, the defrosting task is allocated according to needs, and only the air coolers meeting the defrosting threshold value are started for defrosting. And meanwhile, other air coolers are kept in a refrigeration state to stabilize the warehouse temperature, a traditional grouping defrosting mode is not needed, the operation efficiency of a cold storage cluster and the warehouse temperature stability are improved, and energy consumption is reduced.

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 provides a defrosting control method based on near-end strategy optimization and a refrigerator. The method comprises the steps that target data of the refrigerator are collected; processing the collected target data, judging whether missing values and abnormal values exist in the data or not, and respectively processing the missing values and the abnormal values; constructing a state space of the multivariable strategy network based on the preprocessed data; meanwhile, energy consumption, freezing chamber temperature fluctuation, compressor starting and stopping times, defrosting interval time and defrosting duration are calculated based on the preprocessed data, and a multi-target reward function is constructed; training the constructed strategy network by using a near-end strategy optimization algorithm; and the trained lightweight strategy network model is embedded into an equipment end control device, and a defrosting control scheme is output. The near-end strategy optimization method of deep reinforcement learning is applied to refrigerator defrosting decision making, the defrosting opportunity is dynamically decided through the deep reinforcement learning strategy network, comprehensive optimization of energy consumption and temperature stability is achieved, energy consumption is reduced, temperature fluctuation is reduced, and the service life of a compressor is prolonged.

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 embodiment of the present application provides a kind of humidity control device and refrigerator, humidity control device is connected with the drawer interchamber of refrigerator, including filter, fan, air duct component, ventilation cover, air duct component includes air inlet and air outlet, is connected with the drawer interchamber by air outlet, ventilation cover is set on the shell of refrigerator, and is connected with air inlet, for introducing ambient air;Fan is arranged in air duct component, for adjusting the air flow rate in air duct component;Filter is arranged in air duct component, for filtering ambient air.The embodiment of the present application can when the internal humidity of drawer interchamber is less than preset value range, start fan to intensify the air flow speed in air duct component, more quickly introduce ambient air into drawer interchamber, to increase the internal humidity of drawer interchamber, humidification is carried out by the way of introducing ambient air, can solve the problem that existing active humidity control needs to rely on water box and ultrasonic wave technology.

The invention discloses an energy-saving type airflow cooperative control system of an impact type tunnel instant freezer and an optimization method. The system obtains multi-source data of materials, environment and equipment in real time through a data sensing and collecting module; the collaborative optimization decision module generates a global control instruction for coordinating the air supply subsystem, the refrigeration subsystem and the conveying subsystem based on an optimization model with the lowest total energy consumption of the system as a target; the airflow dynamic execution module and the refrigeration conveying cooperative execution module respectively drive the adjustable airflow generation unit, the refrigerating unit and the conveying chain to generate a dynamic airflow field matched with the freezing load and adjust the cooling capacity and the speed; the intelligent defrosting scheduling module optimally triggers defrosting based on the prediction model; according to the method, the steps of data collection, decision optimization, airflow dynamic adjustment, refrigeration conveying cooperation and intelligent defrosting are synchronously executed. According to the invention, deep collaboration and dynamic optimization of multiple subsystems are realized, the energy consumption of the instant freezer can be obviously reduced, and the freezing uniformity and the continuous production efficiency are improved.

A freezer, relating to the technical field of refrigeration devices. The freezer comprises: a freezer body (100), a mounting enclosure (400), a compressor (842), an evaporator (300), a return air vent (401), a ventilation housing (500), a first air outlet (601), a second air outlet (602), a third air outlet (603), a fourth air outlet (604), and a fan (700). An opening is formed at the top of the freezer body (100). The evaporator (300) is disposed inside the mounting enclosure (400). The mounting enclosure (400) is provided with the return air vent (401). The internal space of the freezer body (100) comprises a first accommodating cavity (103), a second accommodating cavity (104), and a third accommodating cavity (105) that are successively connected; and the second accommodating cavity (104) is located above the mounting enclosure (400). The ventilation housing (500) is attached to a side wall of the freezer body, and the ventilation housing (500) is communicated with the mounting enclosure (400). The first air outlet (601) is formed on the side of the mounting enclosure (400) facing the first accommodating cavity (103). The second air outlet (602) is formed on the side of the ventilation housing (500) facing the first accommodating cavity (103). The second air outlet (602) is located above the first air outlet (601). The third air outlet (603) is formed on the side of the ventilation housing (500) facing the second accommodating cavity (104). The fourth air outlet (604) is formed on the side of the ventilation housing (500) facing the third accommodating cavity (105). The fan (700) is disposed in the ventilation housing (500).

The invention relates to the technical field of refrigerators, and discloses a spiral air duct structure of an air-cooled freezer, which comprises a shell, a fan base is arranged in the shell, a fan is fixedly arranged on the fan base, a fan cover is fixedly arranged on the outer side of the fan, an air inlet is formed in the shell, and an air deflector is fixedly connected to the shell. The air guide plate is provided with a side air outlet and a front air outlet, the side air outlet and the front air outlet are used for supplying air into the refrigerator, an adjusting mechanism is arranged on the inner side of the air guide plate and used for adjusting the opening and closing states of the side air outlet and the front air outlet, and the adjusting mechanism comprises a rotating shaft fixedly arranged on the air guide plate; the rotating seat is rotationally arranged on the rotating shaft in a sleeving manner; and the sealing plate is fixedly connected to the rotating base and used for controlling opening and closing of the side air outlet, and then the state that cold air is blown into the freezing box from the front air outlet is controlled, and the problems that an existing air channel is prone to dust accumulation and large in occupied space are solved.

The utility model relates to the technical field of air cooler defrosting, in particular to an air cooler defrosting device which comprises an outer frame, a lead screw is rotationally installed in the outer frame, a lead screw pair is arranged on the outer side of the lead screw in a threaded and sleeved mode, a movable seat is fixedly installed at the lower end of the lead screw pair, and a rotating disc is rotationally installed on one side of the movable seat. A plurality of groups of scraping blocks are fixedly mounted on the surface, far away from the movable seat, of the rotating disc, and are distributed in a circumferential array around the central axis of the rotating disc, a blowing nozzle is fixedly mounted at the top of the movable seat, an air supply mechanism is fixedly mounted at the top of the outer frame, and the air supply mechanism is connected with the blowing nozzle. The defrosting device for the air cooler can scrape off a frost layer on the surface of the air cooler and is worthy of popularization.

A HVAC&R system includes a heat pump configured to selectively circulate a working fluid. The heat pump includes an outdoor heat exchanger, an indoor heat exchanger, a compressor, a reversing valve configured to direct the working fluid from the compressor to the outdoor heat exchanger or to the indoor heat exchanger, and a controller. The controller is configured to determine whether a pressure of the working fluid exiting the compressor exceeds a pressure threshold, and, in response to determining that the pressure of the working fluid exiting the compressor exceeds the pressure threshold, control the reversing valve to block the working fluid from flowing from the compressor through the reversing valve to the outdoor heat exchanger.

A green energy-saving cold store is provided, including a cold room, a platform, a machine room, and a refrigerating system. A drying layer (1) is arranged below the first floor of the cold room; a ground heat insulation layer (2) is moved downwards into the drying layer (1) and is separated from a first floor slab (3); an inner wall (4), an internal partition wall, and the wear-resistant waterproof floor (33) are directly located on the first floor slab (3) and integrated with a frame structure; a peripheral protective wall adopts a light steel structure wall surface (14), and is connected to the frame structure by means of ball joint tie beams (15) at the intersection points between frame beams and columns. The cold store is energy-saving and environment-friendly, and has good anti-seismic and fireproof performance.

The multifunctional partitioned temperature control medical storage cabinet comprises a multifunctional medical temperature control cabinet, and a drying mechanism and a heat dissipation auxiliary mechanism are arranged in the multifunctional medical temperature control cabinet; according to the multifunctional partitioned temperature control medical storage cabinet, by arranging the drying mechanism, the heat dissipation auxiliary mechanism and the cleaning mechanism, the multiple improvement effect on the environment in the cabinet is achieved, firstly, a motor drives a lead screw to drive a support to move, a cleaning wiping plate can be periodically attached to the back face of the partitioned storage cabinet, condensate water formed due to temperature difference is cleaned and scraped, and the cleaning effect is improved; according to the drying device, local moisture accumulation caused by long-term adhesion of water drops is avoided, the mildew risk is reduced from the source, meanwhile, condensate water is extruded to flow into the water storage tank and is discharged through the drainage pipe, the internal humidity control capacity is further improved, and then the drying box is heated by the heating plate, so that drying agent particles continuously keep active; and the transmission plate drives the transmission ring and the transmission blades to rotate to stir the drying agent particles, so that moisture absorption is more uniform and efficient.

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.

A refrigerator may include a body including a compartment; a first door and second door coupled to the body, and that are rotatable to open and close a first and second region of the compartment, respectively; a rotation guide including a first electrode to receive power from the body; a rotating bar on the first door, that is rotatable, and includes a heater and a second electrode to supply power to the heater, wherein, with the second region closed by the second door, as the first door closes the first region, rotation of the rotating bar is guided by the rotation guide such that, the rotating bar covers a gap between the first and second door, and with the first region closed by the first door, the first and second electrode contact such that the heater is powered by the power from the body.

The utility model relates to the technical field of quick-freezing devices, in particular to a tunnel-type quick-freezing device for quick-frozen food, which adopts a tunnel-type quick-freezing structure that a conveying belt is matched with a screen plate to realize reciprocating conveying of food, simplifies a conveying structure and reduces adhesion and damage of the food. Comprising a quick-freezing box, a driving roller, a driven roller, a conveying belt and a refrigerating system, the quick-freezing device further comprises a plurality of separating and pushing assemblies, a net plate and an ice receiving mechanism, the separating and pushing assemblies are evenly installed on the outer surface of the conveying belt, each separating and pushing assembly is composed of a plurality of evenly-arranged elastic rods, the separating and pushing assemblies are perpendicular to the conveying direction of the conveying belt, and the net plate is installed in a quick-freezing cavity of the quick-freezing box. The end of the screen extends out of the quick-freezing box through the inlet and outlet, the screen is located below the conveying belt, the ends of the multiple separating and pushing assemblies scrape the upper surface of the screen, and the ice receiving mechanism is installed in the quick-freezing cavity, located below the screen and used for collecting crushed ice.

The utility model relates to the technical field of refrigeration equipment, and provides a refrigerator defrosting air duct structure and a refrigerator, the refrigerator defrosting air duct structure comprises a box body, a wind shield and a shape memory alloy spring, the box body comprises a refrigeration air duct and a ventilation opening, the refrigeration air duct communicates with a refrigeration chamber of the refrigerator through the ventilation opening, and the wind shield is movably arranged at the ventilation opening; the shape memory alloy spring is connected with the wind shield and used for driving the wind shield to close the ventilation opening when the temperature is higher than the first temperature. The shape memory alloy spring drives the wind shield to move to close the ventilation opening, and in the defrosting process, when the electric heater starts to work and the temperature in the air duct rises, the shape memory alloy spring can respond to temperature change and drive the wind shield to close the ventilation opening through the unique thermally-induced deformation characteristic of the shape memory alloy spring. High-temperature air in the air duct is effectively isolated and prevented from flowing into the refrigeration chamber, so that the temperature of the refrigeration chamber is prevented from rising, and the stability of a food storage environment in the refrigeration chamber is ensured.

The invention relates to the technical field of refrigerators, in particular to a refrigeration cycle system for a refrigerator, the refrigerator and a working method of the refrigerator. The refrigeration cycle system comprises a compressor, a condenser, a filter, a throttling device, a liquid storage tank, an evaporator and an air return pipe which are sequentially connected in series through pipelines, a first control valve is arranged on the pipeline between the liquid storage tank and the evaporator, and a second control valve is arranged on the pipeline between the liquid storage tank and the throttling device. The liquid storage tank is pre-filled with a liquid refrigerant, and the refrigerant is quickly guided into the evaporator and then is instantly vaporized during first use by utilizing a siphoning effect, so that instant refrigeration is realized, the refrigerator can achieve an obvious refrigeration effect within a few minutes, and the first use experience is remarkably improved; secondly, the starting load can be reduced by means of siphoning, the compressor is prevented from operating in a high-load state for a long time in the initial stage, and the service life of the compressor is prolonged; in addition, the system is simple in structure, no complex mechanical device needs to be additionally arranged, and the system can be achieved only through cooperation of the liquid storage tank and the control valve.

The invention discloses a control method and device of an air conditioner, the air conditioner, a storage medium and a computer program product, and the method comprises the steps that in the refrigeration operation process of the air conditioner, whether the current environment is in a temperature and humidity state needing preferential dehumidification or not is determined according to the indoor environment temperature and the indoor relative humidity; if it is determined that the current environment is in the temperature and humidity state needing preferential dehumidification, the frequency of a compressor and the rotating speed of an inner fan are adjusted, and the air conditioner executes dehumidification operation; after the dehumidification operation is completed, the environment dew point temperature is calculated based on the indoor environment temperature and the indoor relative humidity; dynamically adjusting the running frequency of the compressor and the rotating speed of the inner fan according to the environment dew-point temperature and the evaporator surface temperature to enable the evaporator surface temperature to be higher than the environment dew-point temperature. According to the scheme, the anti-condensation response speed is increased, the control precision and the environmental adaptability are improved, and the balance of efficient dehumidification and stable anti-condensation is achieved.

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 invention relates to the technical field of refrigeration, in particular to a refrigerator self-adaptive energy-saving control system based on multi-mode perception, which comprises a data acquisition module, a refrigeration regulation module, a wind power auxiliary module, an air pressure auxiliary module and a data processing module, the data acquisition module is used for capturing temperature distribution, humidity conditions and air pressure conditions in the refrigerator and sending the data information to the data processing module. By arranging the thermal camera and the wind power auxiliary module, the thermal camera captures the position of an ice layer, the draught fan is aligned with the ice layer, sublimation of the surface of the ice layer is accelerated through air flowing, and when air passes through the surface of the ice layer, heat can be transferred to the ice layer with the lower temperature due to work of the evaporator; and the temperature of flowing air is reduced while ice layer disappearance is accelerated, so that the electric energy consumption of the refrigeration adjusting module is reduced, and the refrigeration quality is improved.

The invention relates to an air cooler fin defrosting method and system, an intelligent terminal and a storage medium, and relates to the technical field of defrosting. The fin detection temperature of the air cooler fins is obtained based on the defrosting trigger signal; the fin detection temperature is analyzed to determine the fin frosting thickness of the air cooler fins; the fin detection temperature, the fin frosting thickness and the preset defrosting power are analyzed to determine the fin defrosting time; and controlling a preset defrosting device to defrost the air cooler fins according to the fin defrosting time. The control method has the effect of improving the control accuracy of defrosting of the fins of the air cooler.

The invention relates to a temperature control system control method and device, temperature control equipment and a storage medium. The method comprises the steps that even if the environment temperature and humidity change dynamically, the air dew point temperature can be recalculated according to the air dry-bulb temperature and the relative humidity which change suddenly, and a proper safety margin is calculated by combining the humidity change rate under the environment temperature and humidity change suddenly; the target temperature of the matched environment is calculated by integrating the air dew point temperature and the safety margin, and then the operation parameters of the temperature control equipment are controlled according to the target temperature so as to effectively respond to dynamic sudden change of the environment temperature and humidity, and it is ensured that the temperature of an evaporator coil does not fluctuate along with the target temperature to cause the condensation phenomenon.

The utility model discloses a split type refrigerator structure, which is characterized in that a first box body and a second box body are detachably connected, so that a user can independently carry the first box body for storing articles according to requirements, and does not need to carry the whole refrigerator structure. Therefore, the portable solar water heater is lighter and easier to carry under the conditions of outdoor activities, travel or limited space; the air cooling system is placed in the second box body, so that the storage space in the first box body can be maximized; due to the split type design, any part can be cleaned or maintained more easily, if the air cooling system goes wrong, only the second box body needs to be detached for maintenance, and the first box body for storing food does not need to be influenced; and the independent air cooling system can better adjust the temperature in the storage cavity, so that the freshness of the food is ensured. In addition, the first box body and the second box body which are different in size can be freely selected according to actual requirements, and therefore the optimal space utilization and energy consumption ratio are achieved.

The invention provides a refrigerator and a temperature and humidity control method thereof.The refrigerator comprises a refrigerator body provided with a refrigerating chamber, a refrigerating system arranged on the rear side of the refrigerating chamber and a humidifying system, the refrigerating system comprises an evaporator, and the humidifying system comprises a water box, a humidifying fan and a humidifying material arranged close to the humidifying fan; the water box comprises a flow guide part arranged below the evaporator and a bearing part connected with the flow guide part, and the humidifying material is arranged on the bearing part. According to the refrigerator, the water box is placed below the evaporator to receive the defrosting water of the evaporator, the humidifying material is placed at the other end of the water box to absorb the defrosting water, moisture on the humidifying material is blown to the refrigerating chamber through the humidifying fan to humidify the refrigerating chamber, and therefore the refrigerator can control the temperature and humidity through the evaporator and the defrosting water of the evaporator.

The utility model relates to the technical field of meat product sterilization, and discloses a self-adaptive sterilization assembly and an automatic meat product placing cabinet, the self-adaptive sterilization assembly comprises a cabinet body and a sterilization assembly, the sterilization assembly comprises a square plate, a frame is clamped on the square plate in a sliding manner, the upper end of the frame is rotatably connected with a turning cover, and a sterilizer is mounted in the frame; the two ends of the square plate are provided with refractors which are mirrored with each other, the two refractors are located at the left end and the right end of the frame respectively, the opposite faces of the refractors are attached to the frame, the front end of the square plate is provided with two hydraulic devices which are distributed in a mirroring mode, and the output ends of the two hydraulic devices are fixed to the different sides of the frame. By means of mutual matched movement of hydraulic devices, purple light irradiation angles of the sterilization assemblies are adjusted, meat products are effectively sterilized, meanwhile, the multiple sterilization assemblies are arranged, the irradiation angles can be adjusted, the meat products in a certain area can be sterilized in a concentrated mode, and meanwhile, frost can be effectively removed through the arranged deicing assembly, so that the sterilization efficiency is improved. And fresh and clean meat products are jointly ensured.