1908 results about "Cool storage" patented technology

Methods and systems for handling and dispensing fluid are disclosed herein. In some embodiments, a method includes dispensing fluid into an inner chamber and inserting the inner container into an outer chamber of an outer container. The method can include dispensing a coolant into the outer chamber of the outer container and coupling an outer container coupler of the outer container to a first coupler of a connector such that the connector defines a gap between the inner container and the outer container. The method can include coupling a second coupler of the connector to a lid coupler of a lid, wherein the lid coupler has the same thread pitch as the inward-facing threads of the outer container coupler of the outer container. The method can include cooling the fluid to a chilled storage temperature and dispensing the fluid out of the inner chamber.

A method of assembling a meal kit tray from a single blank including a bottom panel, wherein the bottom panel is configured to support a bag containing refrigerated items and a cold pack, wherein the single blank further comprises a bottom panel; a side panel extending outwardly from at least a portion of the bottom panel, the side panel joined to the bottom panel along a first fold line defining a joint, wherein the first fold line is interrupted by at least one perforation line segment defining a standoff; and a wing extending outwardly from the side panel, the wing joined to the side panel along a second fold line defining a joint, the wing defining a free end; wherein the method comprises the steps of rotating the side panel upwardly about the first fold line to cause the standoff to separate from the side panel; and rotating the wing downwardly about the second fold line.

The invention discloses an air cooler distributed dynamic defrosting control method, and relates to the technical field of air cooler distributed defrosting, and the method comprises the following steps: obtaining the spatial position and wind direction and flow direction information of an air cooler in a refrigeration environment and the defrosting exhaust state of an adjacent air cooler, building a heat exchange state space-time perception map based on a space coordinate relation, and obtaining a heat exchange state space-time perception map; the determination module is used for determining whether the air cooler is interfered by defrosting airflow of adjacent air coolers; acquiring temperature, humidity, current and air volume data of the air coolers which are determined to be interfered by defrosting airflow of the adjacent air coolers, constructing a heat exchange characteristic curve of the target air cooler in the current time period, and performing residual error fitting calculation on the heat exchange characteristic curve and a standard heat exchange curve in a historical non-defrosting state; and determining the local heat exchange parameter distortion performance of the air cooler caused by the defrosting airflow interference of the adjacent air cooler. The problem that defrosting is triggered by mistake due to the fact that the air cooler is interfered by defrosting airflow is solved, and accurate recognition and dynamic control optimization of the defrosting requirement are achieved.

The utility model discloses a cold storage double-air-curtain system which comprises a circulating fan, an air supply pipeline, an air return pipeline, a temperature monitoring unit, a goods monitoring unit and a control unit, the temperature monitoring unit comprises a cold storage room temperature probe, a return room temperature probe and a pass room temperature probe, and the goods monitoring unit is arranged in a return room. Comprising a first infrared sensor arranged above an inner garage door and a second infrared sensor arranged above an outer garage door. The temperature probe is used for monitoring the temperature of a warehouse-in and warehouse-out area, when heat exchange energy caused by temperature difference exceeds a preset value, the circulating fan is started to supply air to the opening after the warehouse door is opened, and in the warehouse-in and warehouse-out process, the infrared sensor is used for monitoring height and width information of warehouse-in and warehouse-out goods and transmitting the height and width information to the controller; the working number of the air supply outlets and the air supply speed are adjusted according to the height and width of goods, heat exchange between a cage returning room and a refrigerating room and heat exchange between the cage returning room and a penetrating room are reduced to the maximum extent, and the energy utilization efficiency of the refrigeration house is improved.

The present invention discloses a chip capacitor termination production line based on a thick rubber plate, comprising an assembly mechanism, an implantation mechanism, a pressing mechanism, a leveling mechanism, a slurry dipping mechanism, a drying mechanism, a cooling storage mechanism, a plate changing mechanism, a discharge mechanism and a transfer clamp; the slurry dipping mechanism, the drying mechanism and the cooling storage mechanism are each provided with two, and the assembly mechanism, the implantation mechanism, the pressing mechanism, the leveling mechanism, a slurry dipping mechanism, a drying mechanism, a cooling storage mechanism, a plate changing mechanism, another slurry dipping mechanism, another drying mechanism, another cooling storage mechanism and a discharge mechanism are provided in sequence; the assembly mechanism is used to place the lead-in plate on top of the thick rubber plate and form an assembly. The chip capacitor termination production line based on a thick rubber plate proposed in this scheme realizes the fully automatic operation of the chip capacitor termination process, can effectively improve the termination efficiency and the termination accuracy of the chip capacitor, and is conducive to reducing the labor cost in the termination process.

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.

1. Name of the product in this design: Car refrigerator (1). 2. Purpose of this design: For storing and refrigerating items in a vehicle. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention provides an energy-saving stirring type vacuum deodorization device, which relates to the technical field of plastic processing, and comprises a stock bin, a plurality of groups of vacuum deodorization tanks, a cooling storage tank, a hot air conveying pipeline and a vacuum control pipeline, a discharge port of the vacuum deodorizing tank is communicated with the cooling storage tank through the finished product conveying pipeline, the hot air conveying pipeline and the vacuum control pipeline are both communicated with the vacuum deodorizing pipe tank, the hot air conveying pipeline is used for conveying air to the vacuum deodorizing tank and the cooling storage tank, and the vacuum control pipeline is used for controlling the cooling condition of the vacuum deodorizing tank. The device is used for deodorizing materials, through circulation of a heating condition and a vacuum condition, the heating time of the materials is shortened, raw materials are prevented from being decomposed in the deodorizing process, meanwhile, energy consumption needed by heat compensation is extremely low, the pressure difference between the inner surface area and the outer surface area of particles is created through the vacuum environment, the deodorizing efficiency is improved, and energy consumption is reduced.

The invention discloses a quick-freezing equipment energy efficiency optimization system based on digital twinning, and particularly relates to the technical field of quick-freezing equipment energy conservation, which comprises an energy efficiency optimization physical equipment layer, an energy efficiency optimization multi-source data acquisition layer, an energy efficiency optimization multi-physics field digital twinning layer, a quick-freezing equipment full-flow energy efficiency optimization layer and an energy efficiency optimization execution and feedback layer, the energy efficiency optimization physical equipment layer is used for constructing quick-freezing equipment of the digital twin and comprises a pretreatment stage equipment group, a quick-freezing stage equipment group and a refrigeration equipment group, and each equipment is provided with a monitoring point position and is used for installing a sensor to collect energy efficiency optimization multi-source data; according to the method, the key factors influencing the energy efficiency can be more accurately found out based on the logistics mechanism model by optimizing the multi-physics field digital twin layer through the energy efficiency and constructing the geometric model and the physical mechanism model, and a powerful basis is provided for formulating a scientific and reasonable energy efficiency optimization strategy, so that deep optimization of the energy efficiency of the quick-freezing equipment is realized.

The utility model provides a refrigerating unit device for a new energy electric refrigerator car with an integrated outdoor unit, which belongs to the technical field of refrigerator car refrigeration and comprises a refrigerating unit and a defrosting unit, and the refrigerating unit comprises an outdoor unit assembly, an indoor unit assembly, a pipe group, a refrigerating and heat-insulating carriage and a high-voltage power battery. According to the refrigerating unit of the new energy refrigerator car, the used compressor is the electric compressor, the high-voltage power supply with the same voltage platform as the new energy refrigerator car body is used as a power source of the electric compressor, and the electric compressor is driven to replace a fuel oil belt wheel compressor; and an oil-gas separator, a condenser, a receiver-drier, a thermostatic expansion valve and an evaporator are sequentially arranged on the pipe group between the circulating refrigerant outlet and the circulating refrigerant inlet of the electric compressor. The fuel oil refrigerator car refrigerating unit can solve the problem that a power source is generated due to the fact that an existing traditional fuel oil refrigerator car refrigerating unit depends on work of an engine in the refrigerating process.

The invention discloses an intelligent regional refrigeration adjusting system and method based on multi-mode sensing, relates to the technical field of refrigerated cabinets, and aims to solve the problem that a traditional refrigeration device only conducts passive adjustment through pressure and temperature and cannot sense material decay in the early stage. The system comprises a pressure / temperature acquisition module, a state sensing module (a color recognition unit and a smell recognition unit), a grading decision module and a cold supply adjusting module, and material states are divided into L0-L3 four levels; according to the method, multi-modal data are synchronously obtained through a depolarization method, color / smell change indexes are obtained after processing, state grades are judged, customized cold supply instructions (such as L1 cooling and wind speed increasing and L3 limit refrigeration and isolation) and early warning instructions are generated in combination with pressure and temperature, and the instructions are independent in different areas.

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 semiconductor handrail vehicle-mounted refrigerator is characterized in that a refrigeration cavity is formed in a refrigerator body, a drawer assembly is embedded in the refrigeration cavity in a sliding mode, the drawer assembly comprises a drawer body and a handle part integrally formed at the outer end of the drawer body, and a TEC refrigeration module is installed at the bottom of the refrigeration cavity; an ice-making cavity is formed in the handle part, the TEC ice-making module and the ice-making basket are both arranged in the ice-making cavity, and the ice-making basket can be pulled out from the outer side of the handle part; the water-cooling heat dissipation system is installed at the bottom of the refrigerator, and the TEC refrigeration module and the TEC ice-making module share one set of water-cooling system. According to the invention, the perfect integration of two major functions of refrigeration and ice making is realized, and the user experience and the luxury sense and convenience of the vehicle are improved; the two refrigerating systems are mutually independent and do not interfere with each other in operation. The design of external ice taking avoids the problems of cold air loss and overhigh energy consumption of the refrigerator main body caused by ice taking. The ice maker module is ingeniously integrated at the end part of the armrest box, so that the space is fully utilized, and the waste of the internal space is avoided.

The invention relates to the technical field of medical inspection equipment and portable cold chain control, in particular to a foldable temporary inspection reagent refrigeration box temperature control and pipettor waste liquid early warning system. The system is composed of a semiconductor refrigeration and phase change cold storage composite temperature control unit, a reagent position RFID and expiration management module, a temperature, humidity and vibration monitoring module, a waste liquid collection and liquid level and component monitoring unit, an edge control and information interaction terminal, a pipettor interface control module, a folding state detection module and a power supply and battery management module. 2-8 DEG C closed-loop temperature control and timing temperature return are realized; when the event is close to a threshold value, alarming and prohibiting cover opening, and locking suction and discharge; and recording the cold chain and tracing. According to the technical scheme, 2-8 DEG C closed-loop temperature control and timing temperature returning are achieved, automatic temperature control tightening, cover opening forbidding, suction and exhaust locking and chain type tracing are achieved in the abnormal state, and the problems that temperature control beside a mobile station is disjointed with authority, and tracing is insufficient are solved.

The invention is suitable for the field of logistics management, and provides a logistics transportation scheme determination method and system, and the method comprises the following steps: collecting the positioning data and environment temperature data of a cold transport vehicle in real time, introducing meteorological data, and predicting the temperature change of a destination passing region of the cold transport vehicle to obtain a path temperature region map; dynamically generating a refrigeration equipment start-stop instruction and a target temperature set value based on the cargo fresh-keeping threshold value and the environment temperature data; according to the path temperature zone map, planning a cargo handover point, and based on the real-time road condition and the handover point vehicle data, generating a vehicle scheduling sequence; and calculating vehicle energy consumption, transfer cost and time delay cost to generate an economical efficiency comparison report. According to the method, the comprehensive cost of refrigerated transportation is reduced, the transportation efficiency and the flexibility of resource allocation are improved, and the method is particularly suitable for cold-chain logistics requirements in high-altitude, long-distance and other complex scenes.

The invention provides a dynamic optimization control method for a building chilled water storage central air-conditioning system, which comprises the following steps of: predicting a historical cold load of the building air-conditioning system through a pre-trained cold load prediction model, and calculating a cold load prediction error rate and uncertainty distribution; performing power consumption prediction by using the power consumption prediction model; sampling the cold load prediction error rate in the next 24 hours by using a Monte Carlo method; and in combination with the initial predicted cooling load and the dynamic time-of-use electricity price, with the goal of minimizing the daily electricity consumption cost, an optimal control signal of the hourly cold charging or discharging capacity of the chilled water storage device in the next 24 hours is obtained through a particle swarm algorithm. According to the method, quantitative modeling is carried out on random distribution of the error rate of cold load prediction, and the control signal of the cold charging or discharging capacity of the chilled water storage device is optimized through the Monte Carlo method and the particle swarm optimization, so that the optimal control robustness under the condition that the cold load prediction is uncertain is improved; and the operation cost of the chilled water storage central air-conditioning system under the dynamic electricity price is saved.

The refrigerator comprises a refrigerator body, a foaming layer is arranged in the refrigerator body, a refrigerating chamber, a middle chamber and a freezing chamber are further formed in the refrigerator body, and the middle chamber is arranged between the refrigerating chamber and the freezing chamber. The refrigerating chamber is communicated with the freezing chamber through an air path of the middle chamber so as to form an air return path; the cold air module is arranged in the freezing chamber, and the cold air module is used for generating cold air; the air supply duct is arranged in a part of the foaming layer, corresponding to the middle chamber, of the foaming layer, and an air inlet of the air supply duct communicates with the cold air module; the cold air module is arranged in a cavity of the cold air chamber, the cold air duct is arranged in the cold air chamber, an air inlet of the cold air duct is communicated with an air outlet of the air supply duct, an air outlet of the cold air duct is communicated with the cavity of the cold air chamber, and the cold air module, the air supply duct and the cold air duct are matched to form an air supply path.

The invention discloses a CO2 transcritical refrigeration system recooling gas-liquid separation device and method, two-stage throttling is adopted, and a recooler and a gas-liquid separator are arranged after first-stage throttling. The recooler takes low-temperature saturated gas shunted from an outlet of the evaporator as a cold source to cool a two-phase mixture subjected to primary throttling; saturated liquid separated by the gas-liquid separator enters the evaporator after being subjected to secondary throttling, and saturated gas flows back to an inlet of the recooler. On the basis of two rigid constraints, namely evaporation pressure reference and charge volume fixation, the equivalent condensation pressure which is physically locked is introduced into the transcritical cycle for the first time, so that the system obtains fixed high-pressure reference. Thermodynamic derivation shows that the recooling ratio is determined by evaporation pressure and uniqueness, and the operation is completely physically adaptive. Simulation results show that the COP under the air conditioner working condition reaches 3.038, is improved by 38.2% compared with that of a basic system and is superior to that of an existing split-flow supercooling technology (17.62%). The compressor only needs to maintain simple frequency modulation of evaporation pressure without a complex algorithm. The device is suitable for CO2 transcritical systems such as air conditioners, heat pumps and freezing and refrigerating.

A storage and retrieval system includes a grid framework structure including a track system forming a grid. A load handling device is moveable on the track system. Stacks of storage containers are arranged in each of a plurality of storage columns located beneath the track system. The load handling device includes a lifting device arranged to lift one or more storage containers, each including a base wall and opposing sidewalls and end walls extending from the base wall to form a box-like structure having an opening, and a lid for closing the opening to define a cooling tote. At least one of the base wall, and / or opposing sidewalls and / or opposing end walls and / or the lid of the cooling tote includes a pocket housing a refrigerant with a freezing point in a range of −30° C. to 0° C. for storing frozen or chilled foods.

The invention discloses a refrigerator and a fault maintenance method of a defrosting heater of the refrigerator, n pieces of operation data of a refrigerating system are input into a trained fault diagnosis model to output a fault diagnosis result of the defrosting heater, whether the defrosting heater breaks down or not does not need to be checked in a manual troubleshooting mode, and the fault diagnosis efficiency is improved. The refrigerator fault can be automatically diagnosed in real time. Besides, when the fault diagnosis result is that the defrosting heater breaks down, the chamber temperature of the storage chamber is reduced to the preset lowest temperature, food materials are prevented from being damaged due to the fact that the temperature rises too high during defrosting, the refrigerating system is controlled to stop refrigerating, a refrigerating air door is opened, air blowing defrosting operation is conducted on the evaporator, and the refrigerating efficiency is improved. The intelligent defrosting mode is started after the fault of the defrosting heater is diagnosed, so that the refrigerator can be normally defrosted when the fault of the defrosting heater is diagnosed, and the stable operation of the refrigerator can be maintained.

The application discloses a refrigerated transportation temperature and humidity control method and device and a storage medium, relates to the technical field of transportation, and comprises the following steps: obtaining carriage environment data by monitoring the carriage in real time through a temperature sensor and a humidity sensor; obtaining an analysis result by adjusting and analyzing the carriage environment data through a feedback controller; and controlling the temperature and humidity of the carriage through a hydraulic controller based on the analysis result to obtain a control result. Thus, the problem that the refrigerated vehicle cannot be adjusted according to actual temperature and humidity changes during transportation, resulting in poor preservation effect, is solved, and the accuracy of refrigerated transportation temperature and humidity control is improved.

The application relates to the technical field of liquid chromatography tandem mass spectrometry all-in-one machines, in particular to a high-performance liquid chromatography tandem mass spectrometry all-in-one machine which comprises a bottle box, the top of the bottle box is used for placing a solvent bottle, a fixing clamping plate for limiting the solvent bottle is arranged on the bottle box, a side edge buckle slot is formed in the side edge of the bottle box, a refrigeration box is arranged in the side edge cooling box, an intelligent control screen is mounted on the surface of the refrigeration box, a pull-out box is connected to the side edge cooling box through a pull-out slot, and a box handle is arranged on the pull-out box. On the sample management, the refrigeration box in the side edge cooling box cooperates with the intelligent control screen to realize intelligent temperature control, the influence of manual operation on the refrigeration environment is avoided, the arc-shaped clamping groove, the rubber pad and the compression spring structure in the pull-out box can stably clamp a test tube, the sample pollution risk is reduced, the detection precision is improved, and meanwhile, the detachable connection design of the fixing clamping plate enhances the use flexibility of the equipment.

To provide a refrigeration warehouse structure which can shorten a beam lower dimension, while securing heat insulation performance between a first room and a second room adjacent to each other and having difference in preset temperatures in the rooms.SOLUTION: A step part 4c is provided at a partition position between a slab 4a of a first room RA and a slab 4b of a second room RB positioned below a partition wall 2 for partitioning the first room RA and the second room RB, and in a recessed part of the slab 4b of the second room RB which is recessed with respect to the slab 4a of the first room RA, a lower end part of a wall heat insulation material 2a, a floor heat insulation material 9 and a presser material 10 are arranged. In a first composite beam 3a which is provided at the step part 4c, an upper surface of a first steel beam 7a is made to contact a lower surface of the slab 4a, and a stud 8 provided on the upper surface of the first steel beam 7a is buried in the slab 4a. In a second composite beam 3b which is provided in the second room RB, an upper part of a second steel beam 7b is buried in the slab 4b, and the stud 8 provided at the upper part of the second steel beam 7b is buried in the slab 4b.SELECTED DRAWING: Figure 2

The application provides a door body assembly, a freezing / refrigerating compartment and a refrigerator, and relates to the technical field of the refrigerator, which solves the problem that the whole compartment door needs to be opened when taking out the goods from the freezing compartment or the refrigerating compartment, resulting in a large opening space of the freezing compartment or the refrigerating compartment. The door body assembly comprises at least two inner doors in the compartment door, all the inner doors are in sliding connection with the door frame, all the inner doors can seal the compartment when being completely unfolded on the door frame, and when any inner door is pushed or pulled, the inner door can slide along another adjacent inner door, thereby opening or closing at least part of the compartment when the compartment door is opened. When different storage spaces in the compartment need to be opened, the corresponding door body can be pushed or pulled to slide on the door frame, thereby opening the corresponding part of the compartment, and meanwhile, the sliding connection between the adjacent inner doors does not affect the sliding of any inner door, the loss of cold energy between the inner doors is reduced, the opening space of the compartment is reduced, and the energy consumption is reduced.

A refrigerated lunch box device is provided. The device is comprised of a dual-compartment body configured to separate perishable and non-perishable food items, wherein one compartment includes an active cooling system in the form of a refrigeration unit. The refrigeration unit comprises a thermoelectric cooling assembly powered by a battery. The battery may be rechargeable via the charging port and in one embodiment may be a removable battery pack. A user interface control allows adjustment of internal temperatures. The device further includes a non-refrigerated compartment equipped that may be comprised of a modular insert system for customizable food organization.

The utility model discloses a refrigerator display cabinet of evaporimeter upper placement, including the cabinet, the tray frame of setting in the inner chamber of cabinet and the supporting leg of setting in the bottom four corners of cabinet, the inside upper end of cabinet is provided with the evaporimeter, the bottom and left and right two ends of evaporimeter all are provided with the air outlet, the side of cabinet is provided with the auxiliary frame, the vertical swing joint of auxiliary frame has the lifting link, the bottom of lifting link is provided with the universal wheel, the upper end of auxiliary frame is provided with the drive assembly for driving the lifting of lifting link, this refrigerator display cabinet of evaporimeter upper placement, will evaporimeter remove to the food top of cabinet, and its air inlet and outlet are located above, effectively prevent the health hidden danger of food residue falling into and polluting the evaporimeter, significantly improve the cleaning convenience and health grade of equipment, simultaneously, the cabinet bottom case structure can be thinned, makes the display food can be placed in the lower position, optimizes the customer visual angle, strengthens the product display effect.

This application belongs to the field of refrigeration equipment control technology, and provides a frost-free refrigerator and a control method for the frost-free refrigerator. The frost-free refrigerator includes: a cabinet, with a refrigerator compartment, a freezer compartment, and a controller inside the cabinet; an evaporator is installed in the freezer compartment, and a fan motor is installed corresponding to the evaporator; the evaporator is used to generate the cooling capacity required for refrigeration operation; the fan motor is used to drive the cooling capacity generated by the evaporator to be transported to the refrigerator compartment and the freezer compartment; a first temperature sensing element is installed inside the refrigerator compartment for collecting the real-time temperature of the refrigerator compartment, and a second temperature sensing element is installed inside the freezer compartment for collecting the real-time temperature of the freezer compartment; the fan motor and the second... The first distance between the temperature sensing elements is greater than the second distance between the fan motor and the second temperature sensing element, so that the temperature drop rate of the freezer compartment is faster than that of the refrigerator compartment; the controller is connected to the fan motor; the controller is configured to: acquire the real-time ambient temperature of the environment in which the air-cooled refrigerator is located; if the real-time ambient temperature is within a preset low temperature range, output a first adjustment command, the preset low temperature range being determined based on a first preset temperature and a second preset temperature, wherein the first preset temperature is lower than the second preset temperature, the first adjustment command being used to instruct the fan motor to reduce its operating speed, and the refrigeration start-up time of the refrigerator compartment is negatively correlated with the operating speed.

The present application provides a refrigerator, comprising: a refrigerator body, wherein a compressor cavity and an air guide channel communicated with the compressor cavity are formed in the refrigerator body, an air inlet communicated with the compressor cavity is formed at the bottom of the refrigerator body, and an air outlet communicated with the air guide channel is formed in the rear portion of the refrigerator body; and a first evaporator provided in the refrigerator body and located on the side of the compressor cavity distant from the bottom end of the refrigerator body, wherein the first evaporator is an evaporator located closest to the bottom end of the refrigerator body in the refrigerator body, the first evaporator comprises multiple rows of first fins, and the multiple rows of first fins are sequentially arranged at intervals in the height direction of the refrigerator body. Among the multiple rows of first fins, the row of first fins located closest to the bottom end of the refrigerator body is the lowermost row of fins, and the row of first fins adjacent to the bottom row of fins is the second-lowermost row of fins. The air guide channel is located on the side of the second-lowermost row of fins close to the bottom end of the refrigerator body.