31 results about "Auto-defrost" patented technology

The invention belongs to the technical field of refrigerators and particularly relates to an automatic refrigerator defrosting system and a control method. The automatic refrigerator defrosting system comprises a compressor, a refrigerating evaporator, defrosting heaters and a timer which are arranged in a refrigerator, the compressor is communicated with the refrigerating evaporator through a refrigerating pipeline, the defrosting heaters are distributed around the refrigerating evaporator and controlled by the timer, the refrigerating evaporator is a spiral tube evaporator wound outside a refrigerator liner positioned in a foaming layer, and a functional plate for defrosting water to flow into the top and flow out of a refrigerator body is arranged at the top of the refrigerator body. After the timer controls the compressor to be operated for a period of time accumulatively, the compressor is in the off state, the defrosting heaters start to heat for defrosting and then are turned off after defrosting is completed, a timing counter is reset, and the refrigerator is in normal operation. The automatic refrigerator defrosting system and the control method integrate advantages of direct-cooling refrigerators and air-cooling frostless refrigerators, so that the refrigerator is frostless or micro in frost and is capable of automatically treating the defrosting water.

The invention relates to the defrosting and demisting fields of glass products, in particular to the temperature measurement technologies of electric heating glass, and concretely provides an automotive glass system capable of automatic defrosting and demisting, a defrosting method and a demisting method. The automotive glass system capable of automatic defrosting and demisting comprises automotive glass and a power source and further comprises a control unit, a humidity sensor and a current measurement device / resistance measurement device. The humidity sensor is arranged in an automobile to measure the moisture content d of air inside the automobile. The current measurement device / resistance measurement device can measure current I or resistance R of an electric heating element after the electric heating element is powered on. According to the automotive glass system, the defrosting method and the demisting method, the potential safety hazard that glass misting affects the sight of a driver can be eliminated, the safety performance and comfort of automobile driving are improved, and meanwhile a good energy-saving effect is achieved; in the defrosting process, the operation of the driver is simplified, unnecessary energy waste is avoided, the waiting time of the driver in the defrosting process is shortened, and user experience is improved.

The invention discloses an ultralow-temperature air energy heat pump set and a using method thereof, and solves the technical problems that in the prior art, a condenser of the existing air energy heat pump set can not normally defrost and has poor defrosting effect under ultralow temperature condition, an air energy heat pump water heater or heating air conditioner can not normally work when frosting is severe, and the like. The ultralow-temperature air energy heat pump set has the advantages that the structure is simple, the condenser can automatically defrost and has good defrosting effect, and the energy consumption is reduced. The ultralow-temperature air energy heat pump set is characterized in that: a condenser temperature sensor and multiple groups of heating fins are arranged on the condenser of the device, the heating fins are parallel to the fins of the condenser and are fixed on a copper pipe of the condenser, a water temperature sensor is arranged inside a water tank, a compressor, the heating fins, the condenser temperature sensor and water temperature sensor are connected with an external power supply through a controller, and the controller is used for automatically controlling the opening / closing of the heating fins according to the temperature measured by the condenser temperature sensor and the water temperature sensor.

The invention discloses an evaporator defrosting and deicing assembly, and belongs to the technical field of evaporator deicing and defrosting. The evaporator defrosting and deicing assembly aims at solving the problems that when a current evaporator conducts automatic defrosting and deicing work, automatic cleaning cannot be achieved, cleaning work is complex, and time and labor are wasted. The evaporator defrosting and deicing assembly comprises a cold storage and an evaporator installed on the ceiling of a cold storage, and also comprises at least one crushed-ice removal transporting device, and the crushed-ice removal transporting device is located under the evaporator; a conveying belt is arranged at the lower portion of the tail end of the crushed-ice removal transporting device, anda crushed-ice collecting groove is formed in the tail end of the conveying belt. According to the evaporator defrosting and deicing assembly, it can be achieved that crushed ice is automatically removed through the crushed-ice removal transporting device, normal using of the cold storage is not influenced, and meanwhile a large amount of time and labor can be saved.

The invention relates to the technical field of heat exchangers, and discloses a heat exchanger capable of automatically defrosting or deicing. The heat exchanger comprises a tube bank and fins. A refrigerating medium can be introduced into the tube bank, the fins are arranged on the outer wall of the tube bank, and the heights of the fins extend in the radial direction of the tube bank. Each fincomprises a first heat conduction part and a second heat conduction part that are sequentially connected to the tube bank, and the heat conductivity coefficient of the second heat conduction part is smaller than that of the first heat conduction part and the tube bank. The outer surface of the first heat conduction part and the outer surface of the tube bank are each coated with a micron-scale ornano-scale hydrophobic layer, and the hydrophobic layers are hydrophobic coatings or hydrophobic oil films. According to the heat exchanger capable of automatically defrosting or deicing, the heat conductivity coefficient of the second heat conduction part is relatively low, frost or ice on two sides of the tube bank can be separated under a cold release working condition, the tube bank is prevented from being annularly wrapped by the frost or ice, and meanwhile, a frost layer or an ice layer can automatically fall off under the action of gravity through the hydrophobic coatings or the hydrophobic oil films, and a heating and defrosting process can be omitted, and the cold release heat exchange efficiency of the heat exchanger is improved.

The invention relates to the technical field of cold chain systems, and discloses an intelligent manufacturing refrigeration house rapid and automatic defrosting device based on the temperature difference principle. The rapid and automatic defrosting device comprises a shell, a gear rotating seat is movably connected to the interior of the shell, and the gear rotating seat is connected with an automatic defrosting mechanism and an automatic antibacterial liquid spraying mechanism. After a refrigerator in the refrigeration house frosts, the temperature difference between an outer thermoelectricmaterial and an inner thermoelectric material is inconsistent, so that a coil in a magnetic conductor generates voltage, a permanent magnet moves in the direction away from the magnetic conductor tostretch an extension spring, and meanwhile, the permanent magnet moves outwards to be engaged with a driving gear; and due to the fact that refrigerating fan blades are always in the state of rotatingoutwards to discharge air, the driving gear is driven to rotate, due to the meshing effect of the permanent magnets, the driving gear rotates to drive the rotating fan blades to rotate, the rotatingfan blades rotate to discharge internal water vapor through a vapor discharge outlet, and therefore the function of rapid and automatic defrosting is achieved.

The invention discloses an automobile defrosting and defogging rod, which comprises a rod body, a cover and a rubber pad, wherein the rod body is in a cylinder shape with the smooth surface, the inside of the rod body is hollow, one end of the rod body is provided with a water filling opening, a threaded body is arranged on the inner wall at the water filling opening part of the rod body, one end of the cover is provided with a handle, the other end of the cover is provided with the rubber pad, and the cover is matched and connected with the threaded body. The automobile defrosting and defogging rod has the advantages that the use is simple, safety and effectiveness are realized, more importantly, the energy is saved, the environment is protected, heat transferred by hot water can be used for fast removing frost and fog on automobile windows, the residue temperature can also be used for heating, in addition, the size is small, the carrying is convenient, and the automobile defrosting and defogging rod can be held in the hand or be placed in a bag.

The invention discloses a transcritical CO 2 A composite heat pump system, including a first evaporator, a regenerator, a first compressor, a first gas cooler, a first expansion valve, a gas-liquid separator, a second compressor, a second gas cooler, and a second expansion valve and the second evaporator; using two sets of independent heat pump systems, using transcritical CO 2 The heat pump system heats the inlet water at 40-50°C to the outlet water temperature at 60-80°C; the invention adjusts the transcritical CO 2 Gas cooler outlet CO in heat pump 2 temperature to ensure that the heat pump system operates at the maximum heating energy efficiency ratio; the present invention introduces the gas-liquid separator and the regenerator into the transcritical CO 2 The heat pump system enables the heat pump cycle system to operate stably under wide operating conditions; in order to solve the problem of transcritical CO 2 The frosting phenomenon during the operation of the heat pump system, through the use of the solenoid valve, can reduce the impact on the compressor while realizing the automatic defrosting of the system.

The invention relates to an automatic defrosting and defogging method and system. The detection module is used to detect the content of frost or fog on the glass, and the control module controls the operation of the defroster according to the content of frosting or fogging. The control strategy is: start defrosting or defogging At this time, the defroster is controlled to operate at a set initial power, and then the operating power of the defroster is gradually reduced according to the change of the frost or fog content on the glass. According to the state of frost or fog on the windshield, the operating power of the defroster is adjusted in real time. During the working period of the defroster, it can achieve fast defrosting, and can also minimize energy consumption and improve defrosting and defogging. reliability. Moreover, it is of great significance to effectively improve the utilization rate of energy and realize the intelligent control of the defroster to reduce the burden on the driver, improve the driving experience of the driver, and reduce the energy consumption of the vehicle.

Automatic defrost technology for refrigeration equipment, in particular, defrosting refrigeration equipment by acceleration defrosting sublimation effects in refrigeration chambers in continual operation below the freezing point of water. Useful for refrigeration equipment for storage of vaccines and other products having storage temperatures ranging from −58 degrees Fahrenheit and 5 degrees Fahrenheit.

The invention discloses a refrigeration device, a storage box and a defrosting method thereof. The storage box is used for storing items in a space below 0 degrees Celsius. The storage box includes: a bottom wall; a plurality of side walls, the The bottom wall and a plurality of the side walls are arranged to form a storage cavity; the air duct accommodated in the storage cavity, the air duct is arranged on at least one of the side walls, and the air duct is installed with There is at least one fan, and a plurality of air passages are opened on the air duct close to the side wall. The invention can control the fan in the air duct to start and run, so that the air channel on one side of the fan enters the air, and the air channel on the other side of the fan outputs the air, forming a turbulent flow close to the side wall in the storage box, thereby Frosting on the side wall is avoided, so that the storage box has an automatic defrosting effect, and manual defrosting is not required, thereby improving user experience.

The invention belongs to the technical field related to refrigerators, in particular to a new type of refrigeration unit with automatic defrosting, automatic ventilation and fresh keeping, including a box body, a cooling mechanism is installed on the inner side of the box body, and the outer side wall of the box body A connector is welded, an adjustment mechanism is installed above the outer side of the connector, and a sensing mechanism is installed on the inner front thread of the connector, a ventilating mechanism is installed on the inner side of the box, and the outer side of the ventilating mechanism is lower. An odor purifying mechanism is welded, and a gas chamber is welded on the outer side and lower side of the odor purifying mechanism, and an air outlet is opened on the outer front of the gas chamber, and the air outlet is installed with the second dust-proof net at the same time, and the inner and lower sides of the gas chamber are A chute is provided. The present invention can purify the peculiar smell of the air by setting the peculiar smell purifying mechanism, avoiding that the air sucked into the box body cannot be purified and circulated to the inner side of the adjacent device, and the use performance of the device is improved.

The invention relates to the technical field of a heat exchanger, and discloses a heat exchanger capable of automatically defrosting or deicing. The heat exchanger comprises a coil pipe and fin plates. A refrigerating medium can be filled into the coil pipe, and the coil pipe is coiled in the same plane. The fin plates comprise the first fin plate and the second fin plate; the first fin plate surrounds the coil pipe, and is positioned int he same plane with the coil pipe; and the second fin plate surrounds the first fin plate, and is located in the same plane with the first fin plate. The heatconductivity coefficient of the second fin plate is smaller than those of the first fin plate and the coil pipe. Both the surfaces of the first fin plate and the coil pipe are coated with hydrophobiclayers, and the hydrophobic layers are hydrophobic coatings or hydrophobic oil films. Due to the lower heat conductivity coefficient of the second fin plate, frost layers or ice layers on both sidesof the coil pipe and the fin plates can be separated under the cold release working condition, so that the heat exchanger is prevented from being completely wrapped by the frost layers or the ice layers; and meanwhile, the hydrophobic layers are beneficial for enabling the frost layers or the ice layers to automatically fall off under the action of gravity, so that the heating defrosting process can be omitted, and the cold release heat exchange efficiency of the heat exchanger is improved.