36 results about "Auto-defrost" patented technology

The utility model relates to the technical field of automatic defrosting, and provides an automatic defrosting mechanism of an air source heat pump, which comprises an air source heat pump body and a heat exchange evaporator, the heat exchange evaporator comprises a heat exchange fin, a defrosting pipe is fixedly mounted on the heat exchange fin, the air source heat pump body is communicated with a cold water pipe and a hot water pipe, and the cold water pipe is communicated with the hot water pipe. A heat preservation heating box is fixed to the outer wall of the air source heat pump body and communicated with a first water guide pipe, the first water guide pipe is communicated with one end of the defrosting pipe, the hot water pipe is further communicated with a water inlet pipe, the water inlet pipe is communicated with the heat preservation heating box, and the communication position is controlled by an electromagnetic control valve. The second water guide pipe communicates with a one-way water valve. The water inlet pipe is additionally arranged on the hot water pipe of the automatic defrosting mechanism of the air source heat pump and matched with the first water guide pipe, the defrosting pipe and the second water guide pipe, the heat exchange evaporator is defrosted, it is guaranteed that the heat exchange evaporator makes full contact with outside air, and the working efficiency of the heat exchange evaporator is not affected.

The utility model relates to the technical field of food quick freezing, in particular to a multi-layer continuous tunnel instant freezer which comprises a heat preservation shell and a quick freezing channel arranged in the heat preservation shell, a feeding port and a discharging port which are communicated with the quick freezing channel are formed in the two ends of the heat preservation shell respectively, a feeding frame is fixedly installed at the position of the feeding port, and a discharging frame is fixedly installed at the position of the discharging port. A discharge frame is fixedly mounted at the discharge hole; by arranging the multi-layer conveying net belt structure, materials can be conveyed in the heat preservation shell in a falling and reciprocating mode, the internal environment of the heat preservation shell is fully utilized, and the space utilization rate is effectively increased; by arranging the connecting pipe, the air supply box and the exhaust pipe, a closed cold air conveying channel is formed between the air outlet of the fan and the conveying net belt, the energy loss of cold air in the flowing process is effectively reduced, and the freezing efficiency is remarkably improved; and by arranging the flushing pipe, the defrosting water tank and the water supply pump, the automatic defrosting function is achieved, the trouble of manual shutdown cleaning is avoided, and the production efficiency is further improved.

The invention discloses a container refrigerator capable of preventing an evaporator from frosting and blocking, which comprises a container main body, the container main body is provided with a refrigerator main body, the refrigerator main body comprises an evaporator component and an air supply component, the refrigerator main body is of a closed shell structure, and a refrigeration cavity for placing the evaporator component is formed in the refrigerator main body. Laminar flow is converted into turbulent flow through the airflow disturbance pieces formed by arranging long-strip-shaped straight plates in a staggered mode, local frosting can be reduced, an initial frost layer is loosened, the design that the evaporator is integrally inclined towards a frost collecting groove is matched, the frost layer is guided to naturally slide down through gravity component force, and the problem that the frost layer is difficult to completely fall off through pure airflow is solved. Meanwhile, the frost collecting groove and the defrosting plate driven by the electric sliding rail form an automatic defrosting component, automatic collection and discharging of the frost layer are achieved, manual intervention is not needed, and energy consumption is reduced.

The invention relates to the technical field of refrigeration equipment, in particular to a refrigerator with an automatic defrosting function, the refrigerator comprises a refrigerator body shell layer, an inner container storage layer and a heat preservation layer, the inner container storage layer is fixedly arranged in the refrigerator body shell layer, and the heat preservation layer is further arranged between the inner wall of the refrigerator body shell layer and the outer side of the inner container storage layer; an automatic defrosting control module is further arranged in the refrigerator, and the automatic defrosting control module judges whether defrosting conditions are met or not through multi-sensor data fusion. After defrosting is triggered, the air outlet angle and the hot air temperature are dynamically calculated and controlled according to the area temperature and the frosting state fed back by the sensor. Through rotation and reciprocating movement of the air outlet pipe and the design of the multi-angle air blowing openings, the limitation of traditional fixed air outlet is broken through, mixing of cold air and hot air is accelerated, the defrosting time is greatly shortened, frost layers at dead corners can be removed, and the problem that traditional defrosting is not thorough is solved.

The application discloses an energy-saving refrigerator with automatic defrosting function, which comprises an energy-saving refrigerator body, a meat storage box arranged in the energy-saving refrigerator body, and a deodorization assembly arranged in the meat storage box. The deodorization assembly comprises a deodorization box fixed to the inner wall of the meat storage box, two side walls of the deodorization box are both provided with built-in grooves, the deodorization box is provided with a matched bottom plate, the two sides of the bottom plate are both fixed with toothed plates, the two sides of the deodorization box are both provided with rotating structures, a plurality of suction ports are arranged on the side of the deodorization box opposite to the meat storage box, and a brush is fixed to the side of the bottom plate close to the suction port. The application not only facilitates the replacement of the built-in activated carbon bag, reduces the probability of the suction port being blocked, reduces the space occupation when the refrigerator is opened, but also realizes the disassembly, replacement and maintenance between the second classification basket and the second sliding plate and meets the requirement of the user for large space.

The utility model relates to the field of freeze-drying equipment, in particular to an efficient freeze dryer capable of automatically defrosting, which is provided with a shell, a vacuum bin is arranged in the shell, a partition plate is arranged in the vacuum bin, a freeze-drying chamber and a refrigerating chamber are respectively arranged on two sides of the partition plate, a fan and an air inlet are arranged on the partition plate, the air direction of the fan is from the freeze-drying chamber to the refrigerating chamber, and the air inlet is communicated with the freeze-drying chamber. And a freeze-drying rack is arranged in the freeze-drying chamber. According to the utility model, the fan is arranged between the two chambers, before the freeze dryer works, the fan blows air to the refrigeration chamber where the coil pipe is located, and as the refrigeration chamber is sealed, the only air inlet capable of ventilating in the refrigeration chamber can continuously blow cold air to the freeze dryer rack, so that quick refrigeration is realized by precooling, the freeze-drying efficiency is greatly improved, and the labor intensity of workers is reduced. When the freeze dryer does not work, only the fan needs to be started independently, the outer side of the coil pipe can be defrosted by airflow, the coil pipe can be maintained, the service life of equipment is prolonged, no residual frost surface breeding bacteria are left on the outer side of the coil pipe, and food safety is guaranteed.

The utility model discloses full-automatic mechanical defrosting equipment, which is used for defrosting a refrigeration storage calandria and comprises a recognition element, a control element, a defrosting element and a defrosting element, and is characterized in that the recognition element is used for recognizing the frosting thickness of the refrigeration storage calandria; the sweeping device comprises a sweeping mechanism, and the sweeping device sweeps frost on the refrigeration house calandria through the sweeping mechanism; and the control element is in signal connection with the identification element and the cleaning device, and the control element is used for controlling the cleaning device to defrost according to the condition that the frosting thickness of the refrigeration house calandria is higher than or equal to a first threshold value. In the application, the frosting thickness of the refrigeration house can be identified through the identification element, so that the control element can control the cleaning device to defrost at the initial stage of frosting, and initial defrosting and automatic defrosting are realized. In the early stage of frosting, the frosting thickness is small, defrosting is convenient, at the moment, defrosting is easier and more thorough, the defrosting effect can be improved, and energy consumption can be reduced.

The invention relates to the related technical field of refrigerating systems, and particularly discloses an automatic defrosting gas-liquid separator for a refrigerating system, which comprises a separator shell of a barrel-shaped structure, an upper cover body and a lower cover body are fixedly mounted on the upper side and the lower side of the separator shell respectively, and a liquid inlet pipe communicated with the separator shell is fixedly mounted on the side surface of the separator shell; and a liquid outlet pipe is fixedly installed below the lower cover body, and an exhaust pipe communicating with the interior of the separator shell is fixedly installed on the upper surface of the upper cover body. According to the automatic defrosting gas-liquid separator for the refrigerating system, when liquid enters through a liquid inlet pipe, an upper blade is pushed, the upper blade is used for driving a first baffle to rotate, the first baffle drives a center rotating shaft to rotate, and at the moment, the center rotating shaft drives a reciprocating lead screw to rotate under the action of a synchronous belt; the reciprocating screw rod drives a movable ring which is installed outside the reciprocating screw rod in a penetrating and threaded mode to move up and down in the rotating process, and frost on the outer surface of the separation shell is removed through a defrosting brush on the inner side surface of the movable ring.

The invention relates to the technical field of automobile defrosting, and discloses a new energy automobile automatic defrosting system and method.The method comprises the steps that a first image and a second image of a windshield are obtained in response to a flameout instruction and a starting instruction adjacent to a target automobile; in response to a defrosting instruction of the target vehicle, edge detection is performed on the first image and the second image, and a frosting contour in the second image is determined; projecting a uniform light curtain to the windshield to obtain a third image; segmenting the first image and the third image based on the frosting contour to obtain a feature matrix; dividing a characteristic area, corresponding to the windshield, of the characteristic matrix into M sub-areas with the same size, and determining the frosting thickness of each sub-area based on the characteristic matrix; and based on the frosting thickness of each sub-area, the defrosting angles and the defrosting power of the N defrosting units are dynamically controlled, so that the defrosting time is shortened.

The application relates to a car defrosting method and device, which comprises the following steps: obtaining the light transmittance of a car glass and comparing the light transmittance with a first light transmittance threshold; when the light transmittance is lower than the first light transmittance threshold, starting a blowing device to perform defrosting and recording the starting time point of the blowing device; calculating the time interval between the starting time point and the last starting time point and comparing the time interval with a time interval threshold; when the time interval is lower than the time interval threshold, performing defrosting further comprises starting an air conditioner; when the time interval is higher than the time interval threshold, comparing the light transmittance with a second light transmittance threshold; when the light transmittance is higher than the second light transmittance threshold, stopping the blowing device to cancel defrosting, and the second light transmittance threshold is greater than the first light transmittance threshold. In the application, when the light transmittance of the car glass is lower than the first light transmittance threshold, the blowing device is started to perform defrosting, so that the purpose of automatic defrosting is achieved, and the driver is liberated; in the case that frosting is very fast, the air conditioner is also started to perform defrosting, so that long-acting defrosting is achieved, and the temperature in the cabin is improved.

The invention belongs to the technical field of automatic maintenance of gasifiers, and particularly relates to an automatic defrosting device for a low-temperature fluid gasifier. The first driving part drives the first mounting frame to move in the first direction; the multiple scraping structures are arranged on the first mounting frame at intervals in the second direction, and one fin of the gasifier is contained between every two adjacent scraping structures; the scraping structure comprises a rigid assembly and a flexible assembly which are oppositely arranged in the first direction, the rigid assembly is spaced from the gasifier body and the fins, and the flexible assembly is in elastic contact with the body and the adjacent fins; the second driving part is connected with the first driving part; the second driving part drives the second mounting frame to move in the third direction; the heating structure is arranged at intervals between the second mounting frame and the body and the fins; the visual sensor is opposite to the fin along a first direction so as to detect the frost layer thickness of the fin and generate a first signal; the controller is in signal connection with the visual sensor and the two driving parts so as to control the working states of the two driving parts.

The invention relates to an automobile defrosting method and device, and the method comprises the steps: obtaining the light transmittance of automobile glass, and comparing the light transmittance with a first light transmittance threshold value; when the light transmittance is lower than the first light transmittance threshold value, a blowing device is started to execute defrosting, and the starting time point of the blowing device is recorded; calculating a time interval between the starting time point and the last starting time point, and comparing the time interval with a time interval threshold value; when the time interval is lower than the time interval threshold value, defrosting is executed, and the air conditioner is started; comparing the light transmittance with a second light transmittance threshold when the time interval is higher than the time interval threshold; and when the light transmittance is higher than a second light transmittance threshold value, the air blowing device is closed to relieve defrosting, and the second light transmittance threshold value is larger than the first light transmittance threshold value. According to the automobile glass defrosting method and device, when the light transmittance of the automobile glass is lower than the first light transmittance threshold value, the air blowing device is started to execute defrosting, the purpose of automatic defrosting is achieved, a driver is liberated, under the condition that frosting is fast, the air conditioner is further started to conduct defrosting, and the temperature in a cabin is improved while long-acting defrosting is achieved.

The utility model relates to cold storage defrosting technical field, concretely for a kind of automatic defrosting device for cold storage, including support frame, the upper portion of support frame is U shape structure, the middle of support frame is equipped with the cleaning cylinder that the cooling coil of cold storage is cleaned and heated, the middle sliding connection of support frame has the sliding block of changing the height of cleaning cylinder position, the middle rotation of cleaning cylinder is connected with support column, support column's surface evenly distributed have multiple clamping grooves, clamping groove is inlayed with the heating strip that air is heated, preheating cylinder is inserted in the middle of support column, preheating cylinder is equipped with air inlet hole in the side away from cleaning cylinder, preheating cylinder is equipped with driving gear and multiple exhaust nozzles in the side close to cleaning cylinder, the utility model can automatically defrosting treatment is carried out to the cooling coil on the wall of cold storage, ensure that the cooling coil and the air in icehouse carry out cold and hot exchange, reduce the consumption of refrigeration equipment.

The utility model discloses an automatic defrosting and dedusting system for a mine ventilation air methane heat collector, which belongs to the technical field of mine ventilation air methane waste heat utilization and comprises an air inlet pressure sensor and an air outlet pressure sensor which are respectively arranged at an air inlet end and an air outlet end of the heat collector. A plurality of cleaning nozzles are arranged at the air inlet end of the heat collector and communicate with the liquid supply assembly; the heat collector is communicated with a liquid inlet pipe and a liquid outlet pipe; the liquid inlet pipe is fixedly connected with a medium liquid inlet temperature sensor, and the liquid outlet pipe is fixedly connected with a medium liquid return temperature sensor; electric valves are respectively arranged on the liquid inlet pipe and the liquid outlet pipe; when the temperature difference between the medium liquid inlet temperature sensor and the medium liquid return temperature sensor is smaller than a set value, the electric valve is closed, and when the pressure difference between the air inlet pressure sensor and the air outlet pressure sensor exceeds the set value, the liquid supply assembly is opened. The heat of mine ventilation air methane is used for defrosting, normal-temperature water is used for dedusting, extra energy investment is reduced, and use is convenient and fast.

The evaporator with the automatic defrosting function for the ice maker comprises an evaporator body, supporting plates are fixedly connected to the two sides of the top and the two sides of the bottom of the evaporator body respectively, a splitter plate is fixedly connected to the side, away from the evaporator body, of each supporting plate, a liquid inlet pipe is arranged at the top of the evaporator body, and a liquid outlet pipe is arranged at the bottom of the evaporator body. A liquid outlet pipe is arranged at the bottom of the evaporator body, a guide pipe is arranged at the bottom of the liquid inlet pipe, the bottom of the guide pipe penetrates to the bottom of the evaporator body, and the guide pipe is communicated with the splitter plate. Through the evaporator body, the supporting plate, the splitter plate, the liquid inlet pipe, the liquid outlet pipe, the guide pipes, the first fixing plate, the second fixing plate, the motor, the threaded rod, the threaded sleeve, the first scraping plate and the second scraping plate, the purpose of automatic defrosting can be achieved, and through cooperation of the guide pipes and the splitter plate, the amount of refrigerant passing through the evaporator in unit time can be increased; and the refrigeration effect is improved, and people can use the refrigerator conveniently.

The present application relates to air source heat pump technical field, specifically to air source heat pump frost control and defrosting method and air source heat pump device.The air source heat pump frost control and defrosting method, comprising the following steps: after starting heating, automatic defrosting is carried out, and the saturated temperature difference corresponding to the environment temperature and low pressure pressure during the stable operation of heating after defrosting is recorded as the frost-free temperature difference of frost-free state; subsequently, real-time environment temperature and real-time low pressure pressure are obtained, and the saturated temperature difference corresponding to the real-time environment temperature and low pressure pressure is obtained as the actual temperature difference; the control system compares the actual temperature difference with the frost-free temperature difference, when the actual temperature difference is greater than the frost-free temperature difference, the control system judges according to the temperature difference between the target outlet water temperature and the current outlet water temperature, controls the compressor frequency or improves the direct current fan speed to delay the frost layer formation rate; when the accumulated frost accumulation running time is reached, the control system controls the unit to start defrosting.The above method can reduce the defrosting frequency and improve the heat exchange efficiency.

The utility model discloses an ultralow temperature cabinet anti-frosting temperature sensing structure which comprises a temperature sensor fixedly connected to the top of an inner cavity of an ultralow temperature cabinet, the surface of the temperature sensor is sleeved with a protective sleeve, the top of the protective sleeve is fixedly connected with the top of the inner wall of the ultralow temperature cabinet, and the inner wall of the protective sleeve is fixedly connected with a heating coil. An electric heating rod is fixedly connected to the position, located at the bottom of the temperature sensor, of the inner surface of the protective sleeve, a control terminal is fixedly connected to the position, close to the front, of the bottom of the inner wall of the ultralow-temperature cabinet, a cabinet door is movably connected to the front side of the ultralow-temperature cabinet through a pin shaft, and a grip is fixedly connected to the left side of the cabinet door. According to the utility model, the heating coil and the electric heating rod are firstly started through the control terminal, so that the heating coil and the electric heating rod radiate heat, the temperature sensor is heated by utilizing the heating coil and the electric heating rod, and at the moment, automatic defrosting can be realized, so that the effect of a defrosting function is achieved.

The utility model relates to the technical field of temperature change test boxes, and discloses a rapid temperature change test box with an automatic defrosting device, which comprises a box body, the side surface of the box body is fixedly connected with an air bellow, the upper surface and the lower surface of the air bellow are fixedly connected with communicating pipes, and the inner wall of the air bellow is fixedly connected with a fan. According to the rapid temperature change test box with the automatic defrosting device, when the drying box is installed, the inclined plane of the inclined plane pipe is aligned with the air inlet pipe and the communicating pipe, the inclined plane of the inclined plane pipe is stressed, the inclined plane pipe pushes the spring to be compressed, and when the inclined plane pipe moves to the hollow positions of the air inlet pipe and the communicating pipe, the elastic force of the spring pushes the inclined plane pipe to be clamped in the air inlet pipe and the communicating pipe; the drying box can be fixed by rotating the threaded sleeve to be installed on the connecting pipe, when the drying box is taken down, the threaded sleeve is moved out, the drying box is rotated to adjust the inclined plane position of the inclined plane pipe, and the drying box can be taken out by pulling, so that the activated carbon plate is convenient to replace.

The utility model discloses full-automatic pneumatic defrosting equipment based on visual identification, which is used for defrosting a refrigeration storage calandria and comprises an identification element used for identifying the frosting thickness of the refrigeration storage calandria; the pneumatic defrosting device outputs gas to the refrigeration house calandria so as to remove frost on the refrigeration house calandria; and the control element is in signal connection with the identification element and the pneumatic defrosting device, and the control element is used for controlling the pneumatic defrosting device to defrost according to the condition that the frosting thickness of the refrigeration storage calandria is higher than or equal to a first threshold value. In the application, the frosting thickness of the refrigeration house can be identified through the identification element, so that the control element can control the pneumatic defrosting device to defrost at the initial stage of frosting, and initial defrosting and automatic defrosting are realized. In the early stage of frosting, the frosting thickness is small, defrosting is convenient, at the moment, defrosting is easier and more thorough, the defrosting effect can be improved, and energy consumption can be reduced.

The invention relates to the technical field of air conditioner outdoor cases, in particular to a heating ventilation air conditioner outdoor energy-saving case which comprises a first synchronous gear, a synchronous belt piece is arranged outside the first synchronous gear, a lower transverse shaft piece is arranged on one side of the synchronous belt piece, and a centrifugal clutch is arranged at one end of the lower transverse shaft piece. A first bevel gear, a bevel gear frame body and a second bevel gear are arranged at one end of the centrifugal clutch. According to the energy-saving defrosting component set, when the heating power of the air conditioner is high and the heat exchange efficiency is affected by frosting of cooling fins, automatic defrosting can be achieved through a centrifugal clutch, gear transmission, a reciprocating lead screw and other structures, good heat exchange is maintained, and the energy consumption of the air conditioner is reduced; the dust cleaning component group can automatically remove dust on the dustproof net plate, so that the ventilation opening is prevented from being blocked, the operation state is guaranteed and component abrasion faults are reduced; and the automatic defrosting and cleaning functions can reduce the manual maintenance requirement, and the maintenance cost is reduced.

The utility model provides a novel split air conditioner with an automatic defrosting function. The novel split air conditioner comprises an indoor unit, an outdoor unit and a composite pipe. A first heat exchanger, a first fresh air pipe and an air supply outlet are arranged in the indoor unit; a silencing heat-preservation static pressure air box, a silencing heat-preservation heat-insulation air box, a compressor, and a second heat exchanger and a third heat exchanger which are connected in parallel are arranged in the outdoor unit; a fan is arranged in the silencing heat-preservation static-pressure air bellow, the output end of the fan is connected with a three-way valve, the three-way valve is connected with a first fresh air pipe and a second fresh air pipe, a first air valve is arranged on the first fresh air pipe, and a second air valve is arranged on the second fresh air pipe; one end of the noise-elimination heat-preservation heat-insulation air bellow is connected with an air inlet pipe, the second fresh air pipe is communicated with the air inlet pipe, a third air valve is arranged on the air inlet pipe, an exhaust shutter is arranged on the noise-elimination heat-preservation heat-insulation air bellow, and an exhaust fan is arranged in the noise-elimination heat-preservation heat-insulation air bellow. The split air conditioner has fresh air pre-cooling and pre-heating functions, can prevent hot air in summer or cold air in winter from being fed into a room to affect the comfort degree of a human body, and can solve the problem of frosting of an outdoor unit.

The invention relates to an automatic defrosting and demisting control method and system for a commercial vehicle. The automatic defrosting and demisting control method comprises the steps that the air conditioner state, the indoor temperature, the indoor humidity and the glass temperature are obtained; according to the air conditioner state, the indoor temperature, the indoor humidity and the glass temperature, the frosting and fogging risk grade is calculated; acquiring outdoor temperature and illumination intensity; according to the outdoor temperature and the illumination intensity, the frosting and fogging risk grade is corrected; and according to the corrected frosting and fogging risk level, the air conditioning system is automatically controlled to defrost and defog. According to the method, the glass fogging risk can be recognized in advance, the automatic defrosting and demisting function is started, and frequent operation of a user on the air conditioner is reduced; glass fogging can be effectively avoided, a good visual field is maintained, and driving safety is guaranteed; and meanwhile, the comfort of drivers and passengers can be considered.

The present disclosure provides systems and methods for automatic defrosting of an actively cooled suitcase. In some embodiments, a method of operating an active cooling vessel includes determining to initiate a defrost cycle for the active cooling vessel; deactivating a cooling system of the active cooling vessel; activating a defrost heater of the active cooling vessel; determining to deactivate the defrost heater of the active cooling vessel; setting the defrost heater to maintain the temperature of the heat receiver system at a threshold; waiting for a set duration to allow the melted frost to drop into the collection tray; and activating the cooling system of the active cooling vessel.

The utility model relates to the technical field of evaporators, and discloses a refrigeration house evaporator with an automatic defrosting function, which comprises a bottom frame, the upper surface of the bottom frame is fixedly connected with a fixing frame, the outer wall of the fixing frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a turntable, and the outer wall of the turntable is rotatably connected to the inner wall of the fixing frame. A support is fixedly connected to the outer wall of the rotating disc, a moving block is slidably connected to the inner wall of the support, a fixing column is fixedly connected to the outer wall of the moving block, and a pull rod is rotatably connected to the outer wall of the fixing column. According to the utility model, the motor drives the turntable to rotate, the turntable drives the bracket to rotate, the pull rod is pulled to move through the fixed column, the pull rod drives the heat conducting plate to slide, the heater can heat the heat conducting plate, and the scraper can better scrape frost on the outer wall of the evaporator, so that most area of the surface of the evaporator is automatically covered; and it is ensured that frost and frost are scraped thoroughly, and the working efficiency of refrigeration equipment is improved.

The automatic defrosting device comprises a heating box, a defrosting shovel and an anti-jamming defrosting mechanism, a heating source is arranged in a heating cavity in the defrosting shovel, and a plurality of spikes are arranged at the tail end of a shovel blade in the defrosting shovel; according to the automatic defrosting device for the refrigeration house, air is input into the heating cavity and the heating box through the air pump and the air guide pipe respectively, the first heating pipe and the second heating pipe are used for heating and defrosting the air entering the heating cavity and the heating box respectively, and the air in the heating cavity and the heating box is heated through the linear telescopic movement of the piston rod in the telescopic cylinder in the anti-jamming defrosting mechanism. The defrosting shovel is used for driving the plum blossom plate to do linear reciprocating motion, the defrosting shovel is continuously pulled in a reciprocating mode through the first sliding rod and the spring to continuously impact and shovel the defrosting block, hot air defrosting and mechanical defrosting are combined, the defrosting efficiency of the defrosting shovel is improved, the defrosting shovel is driven by the motor and the screw to move, manpower is liberated, and the defrosting efficiency is improved. Automatic deicing and defrosting of the defrosting shovel are achieved.

This invention discloses an automatic defrosting device for gas-fired heat pumps in low-temperature environments, relating to the field of heat pump technology. The device includes a main body with a control panel fixedly installed on one side. The main body contains several fins, a low-temperature flue gas duct, a flue gas conveying duct, and a combustion chamber. A multi-stage defrosting mechanism is fixedly connected to one end of each fin. The main body contains a separation mechanism, and the multi-stage defrosting mechanism includes a vibration mechanism. The multi-stage defrosting mechanism includes two symmetrically distributed electric telescopic rods. By setting up a multi-stage defrosting mechanism, this invention can transfer the temperature generated in the combustion chamber. Furthermore, the different heat transfer methods of the primary and secondary storage chambers can melt the frost on the fins in multiple stages, reducing the temperature difference on the fin surface and preventing fin fatigue due to excessive temperature differences, thereby achieving a long fin lifespan.

The utility model discloses a direct expansion type air conditioning unit with an automatic defrosting function. The direct expansion type air conditioning unit comprises an outdoor unit, an indoor unit and a compressor, the outdoor unit comprises a machine shell. The shell is provided with a plurality of groups of infrared correlation probe groups; each group of the infrared correlation probe groups comprises an emitter and a receiver; the transmitters and the receivers are in one-to-one correspondence in position and are located on the wind receiving face of the machine shell. According to the utility model, a plurality of infrared correlation probe groups are adopted to detect the thickness of a frost layer, so that the problem that a single probe group is possibly triggered by mistake due to blocking of sundries is effectively avoided, and meanwhile, the problem that defrosting cannot be triggered in time due to insufficient number of probe groups is also solved.

The invention discloses automatic defrosting evaporation equipment for a quick-freezing tunnel, and relates to the technical field of defrosting, the automatic defrosting evaporation equipment comprises a seat body, a defrosting mechanism, a suction mechanism, a first plugging mechanism and a cleaning mechanism, a conveying module is arranged in the seat body, and a refrigeration module is mounted in the seat body; an air supply module is installed on the inner wall of the base body and located above the refrigeration module, the defrosting mechanism is arranged in the base body, the suction mechanism is arranged below the refrigeration module, the first blocking mechanism is arranged above the suction mechanism, and the cleaning mechanism is arranged in the defrosting mechanism. Through the arrangement of the suction mechanism, when the defrosting mechanism works, frost water received by the liquid receiving hopper can be quickly discharged out of the freezing tunnel, and meanwhile, hot air generated when the defrosting mechanism works can be directly pumped out, so that the hot air is discharged out of the freezing tunnel after passing through the refrigeration module; and the retention time of hot air in the freezing tunnel is shortened, so that the working efficiency is improved.

The utility model provides a refrigerator temperature controller anti -frost automatic defrosting equipment relates to the technical field of home appliance, including connecting piece, base, rotating pipe, the rear end upper and lower sides of connecting piece are equipped with a group of round holes respectively, and the front end fixedly connected with connecting plate of connecting piece, and the front end fixedly connected with threaded rod no.