Abstract

A heating body structure capable of preventing heating without water, and a water heater. The heating body structure comprises a flow dividing blocking piece structure (200) arranged inside a water inlet pipe (100), the flow dividing blocking piece structure (200) comprises a flow dividing piece (300) and a flow stop piece (400), the flow dividing piece (300) is fixedly arranged in the middle of the diameter direction of the water inlet pipe (100), the flow dividing piece (300) is connected to the inner wall of the water inlet pipe (100), the flow dividing piece (300) partitions the water inlet pipe (100) into two independent flow channels, and the flow stop piece (400) is fixedly arranged in one of the flow channels so as to block the flow of a water flow. The flow dividing blocking piece structure (200) for dividing a water flow is provided in the water inlet pipe (100), the water flow enters the heating body only by means of a circulation cavity (600), and the water flow inside a sealed cavity (500) can only enter the circulation cavity (600) by means of water path dividing notches (310) and then enter the heating body, so as to disperse the water flow in the circulation cavity (600), so that the water flow in the heating body rises stably, and the heating is uniform; a diversion connecting pipe structure (800) is additionally arranged in the heating body, and the water flow speed and direction are changed, so that the phenomena of bubble generation and local high temperature are reduced, and the heating body is prevented from heating without water.

IPC Classes  ?

• F24H 15/132 - Preventing the operation of water heaters with low water levels, e.g. dry-firing

Abstract

Provided are a control method, a control apparatus and a control device for a household appliance. The control method for a household appliance includes obtaining a user feature of a target user; determining a hardness of bathing water for the target user based on the user feature of the target user; and generating a control instruction for a water softener based on the hardness of the bathing water. The control method realizes automatic control over a water softener, improves the convenience of controlling the water softener, and determines the hardness of bathing water in combination with user features, thereby improving the accuracy of hardness determination, and improving the bathing experience of a user.

IPC Classes  ?

• G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors

Abstract

The present disclosure relates to the technical field of water heaters, and particularly relates to a heat collector. The heat collector provided in the present disclosure comprises a housing assembly, a support assembly, a heat absorption plate and a heat collection tube assembly, wherein the housing assembly is provided with a sealed cavity; the support assembly, the heat absorption plate and the heat collection tube assembly are all arranged in the sealed cavity; the support assembly comprises a plurality of supports, which are supported on different sides of an inner wall of the sealed cavity; and the heat collection tube assembly is connected to the heat absorption plate. The heat absorption plate is supported on at least some of the supports, such that the structural strength is improved, thereby preventing the housing assembly from collapsing due to vacuum, and thus prolonging the service life of the heat collector.

IPC Classes  ?

• F24S 80/58 - Transparent coveringsElements for transmitting incoming solar rays and preventing outgoing heat radiation characterised by their mountings or fixing means
• F24S 10/40 - Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar heat collectors
• F24S 40/10 - Protective covers or shroudsClosure members, e.g. lids

Abstract

The present application relates to the technical field of heat exchange, and in particular to a heat exchange apparatus and a heat exchange system, for use in solving the technical problem of low heat exchange efficiency. The heat exchange apparatus comprises at least two heat exchange assemblies, a unidirectional on-off element, and a control valve; each heat exchange assembly comprises a flow dividing pipe, a heat exchanger, and a flow divider, the flow divider is provided with a plurality of first openings and a second opening, and the flow dividing pipe, the heat exchanger, and the plurality of first openings of the flow divider are successively connected; the control valve is connected between two adjacent heat exchange assemblies, and is respectively connected to the second openings of two adjacent flow dividers; the unidirectional on-off element is connected between two adjacent flow dividing pipes to form different heat exchange loops; and the unidirectional on-off element and the flow dividers are configured to control the communication state of the heat exchange loops, so as to enable flow paths of a refrigerant during condensation and evaporation to be different. The heat exchange system comprises the heat exchange apparatus. The present application can improve the heat exchange efficiency during condensation and evaporation.

IPC Classes  ?

• F24F 1/16 - Arrangement or mounting thereof
• F25B 39/00 - EvaporatorsCondensers
• F24F 11/84 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves

Abstract

The present invention relates to the field of intelligent household appliances, and in particular to a defrosting control method and apparatus for a heat pump water heater, a device, and a medium. The present invention aims at solving the problem of how a novel air source heat pump water heater performs defrosting during a water heating process. According to the defrosting control method and apparatus for a heat pump water heater, the device, and the medium provided by the present invention, when an outdoor heat exchanger needs to be defrosted, different defrosting schemes are determined according to the temperature of a water tank. When the temperature of the water tank is high, a high-temperature and high-pressure refrigerant mostly flows to the outdoor heat exchanger for defrosting; and when the temperature of the water tank is low, the high-temperature and high-pressure refrigerant mostly flows to the water tank to heat water in the water tank. According to the present scheme, defrosting during water heating is implemented by controlling the amount of a refrigerant flowing to an outdoor heat exchanger and a water tank, and the degree of optimization of energy distribution for water heating and defrosting is high.

IPC Classes  ?

• F24H 15/136 - Defrosting or de-icingPreventing freezing
• F24H 15/39 - Control of valves for distributing refrigerant to different evaporators or condensers in heat pumps
• F24H 15/305 - Control of valves
• F24H 15/254 - Room temperature
• F24H 15/38 - Control of compressors of heat pumps
• F24H 15/269 - Time, e.g. hour or date

Abstract

Provided in the present application are a method and apparatus for prompting the amount of a solar-air-energy refrigerant, and a device. The method comprises: acquiring temperature data of solar-air energy, wherein the temperature data comprises a temperature value of an environment where the solar-air energy is located, an actual water temperature value in a solar-air-energy water tank, and an exhaust temperature value of a solar-air-energy compressor; determining function information of the solar-air energy according to the temperature data, wherein the function information represents whether the amount of a solar-air-energy refrigerant is normal; and outputting prompt information according to the function information. Such a process improves the reliability of the determination of the amount of a solar-air-energy refrigerant, such that solar-air energy can be effectively protected.

IPC Classes  ?

• F25B 13/00 - Compression machines, plants or systems, with reversible cycle

Abstract

The present application belongs to the technical field of heat pumps, and particularly relates to an air source heat pump water heater system. The air source heat pump water heater system of the present application comprises a compressor, a four-way valve, a water tank, a water tank heat exchanger, a first heat exchanger and a second heat exchanger, the water tank heat exchanger being accommodated in the water tank, an inlet of the water tank heat exchanger and a first connector of the four-way valve both communicating with an outlet of the compressor, a second connector of the four-way valve communicating with an inlet of the compressor, a third connector of the four-way valve communicating with a first port of the first heat exchanger, a fourth connector of the four-way valve communicating with a first port of the second heat exchanger, and an outlet of the water tank heat exchanger, a second port of the first heat exchanger and a second port of the second heat exchanger all communicating. Thus, a function of the air source heat pump water heater system can be added and user experience can be improved, and a utilization rate of the air source heat pump water heater system can be also increased.

IPC Classes  ?

• F24H 4/04 - Storage heaters
• F24H 9/20 - Arrangement or mounting of control or safety devices
• F24H 15/212 - Temperature of the water
• F24D 3/18 - Hot-water central heating systems using heat pumps
• F24D 19/10 - Arrangement or mounting of control or safety devices
• F25B 41/20 - Disposition of valves, e.g. of on-off valves or flow control valves
• F25B 41/24 - Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part

Abstract

The present invention belongs to the field of intelligent household appliances, and specifically relates to a gas discharge method for a gas heating furnace, an apparatus, a device, and a medium. The present invention aims to solve the problems of an existing gas discharge method for a gas heating furnace only being able to run a water pump and discharge gas once the furnace is lit and performing heating, causing ill-timed discharge of gas, the water temperature in a pipeline being heated too quickly, and the heating furnace frequently stopping and starting. After start-up, whether gas needs to be discharged is determined according to a gas discharge parameter and the duration that a valve has been open, and when gas needs to be discharged, different gas discharge modes are determined according to different heating furnace furnace types. When a gas discharge procedure is executed, running and stopping of a water pump with a mechanical automatic gas discharge valve is used to achieve discharge of gas bubbles, and lighting and heating are carried out after completion of the gas discharge procedure. Gas discharge is performed before lighting and heating, so that after lighting and heating, the water temperature in a pipeline steadily increases, and operational risks of a heating furnace are effectively reduced.

IPC Classes  ?

• F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details

Abstract

Disclosed in the present invention is a secondary heat exchanger for a gas heating furnace, the secondary heat exchanger comprising a housing, an inner side water box, a plurality of heat exchange tubes, a water intake interface, a water output interface and a flue gas adjusting plate, wherein the housing is provided with a flue gas inlet and a flue gas outlet, which are both in communication with an inner cavity of the housing; outer side ends of some heat exchange tubes are in communication with the water intake interface, inner side ends thereof are in communication with the inner side water box, outer side ends of the other heat exchange tubes are in communication with the water output interface, and inner side ends thereof are in communication with the inner side water box; and the flue gas adjusting plate, which is provided with a plurality of through holes, separates the inner cavity of the housing, and the two parts of heat exchange tubes mentioned above are both positioned in the inner cavity of the housing and are in two different separation chambers, so as to form flow passages from the flue gas inlet to the flue gas outlet after sequentially passing through the two separation chambers. By means of the provision of the flue gas adjusting plate, the flue gas flows through more heat exchange tubes in a cavity of the secondary heat exchanger, such that the flow of flue gas in a heat exchange area is more uniform, thus the flue gas can flow smoothly and the heat exchange efficiency is improved.

IPC Classes  ?

• F24H 9/1809 - Arrangement or mounting of grates or heating means for water heaters
• F23J 15/06 - Arrangements of devices for treating smoke or fumes of coolers
• F28F 9/26 - Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators

Abstract

The present invention belongs to the field of smart household appliances, and particularly relates to a method and apparatus for controlling a variable-frequency air-source heat-pump water heater, and a device and a medium. The present invention aims to solve the problem in the prior art of the wear rate of a compressor being relatively high. In the method and apparatus for controlling a variable-frequency air-source heat-pump water heater, and the device and the medium provided in the present invention, whether a compressor is in cold start is first determined; when the compressor is in cold start and the operation frequency of the compressor is increased to a first frequency platform, a frequency increase moment is determined according to the difference value, which is acquired in real time, between the temperature of exhaust air and the temperature of output water, and a preset holding time threshold corresponding to an ambient temperature; and when the operation time of the water heater reaches the frequency increase moment, the operation frequency of the compressor can be increased to a second frequency platform, and is then increased to a target frequency. In the solution, a frequency increase moment is determined according to the difference value between the temperature of exhaust air and the temperature of output water, and a holding time threshold, such that the content of a refrigerant in a lubricant is effectively reduced, thereby decreasing the wear rate of a compressor.

IPC Classes  ?

• F24H 9/20 - Arrangement or mounting of control or safety devices
• F24H 15/10 - Control of fluid heaters characterised by the purpose of the control
• F24H 15/38 - Control of compressors of heat pumps
• F24H 15/421 - Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
• F24H 15/486 - Control of fluid heaters characterised by the type of controllers using timers

Abstract

The present invention belongs to the technical field of household appliances, and particularly relates to a heating control method and device of a water heater, and a water heater. The present invention aims to solve the problems in the prior art. The heating control method of a water heater in the present invention comprises: a user setting the temperature and the flow according to the water inflow temperature of the water heater to determine whether the water heater enters a dynamic heating mode; and if the water heater enters the dynamic heating mode, according to the real-time water outlet liner temperature and a plurality of preset temperature thresholds, determining that a stop state or different heating states are used, wherein different heating states comprise only a water inlet liner heating pipe is started for heating, the water inlet liner heating pipe and a water outlet liner full-liner heating pipe are started for heating, or the water outlet liner full-liner heating pipe and a water outlet liner energy gathering heating pipe are started for heating. In the technical solution, according to the water outlet liner temperature and a plurality of preset temperature thresholds, more accurate water temperature adjustment of the water heater is achieved.

IPC Classes  ?

• F24H 9/20 - Arrangement or mounting of control or safety devices
• F24H 1/18 - Water-storage heaters
• F24H 15/37 - Control of heat-generating means in heaters of electric heaters

Abstract

A control method, apparatus and device for a household appliance. The control method for a household appliance comprises: acquiring user features of a target user (S201); according to the user features of the target user, determining the hardness of bathing water of the target user (S202); and according to the hardness of the bathing water, generating a control instruction for a water softener (S203). By means of the control method, automatic control over a water softener is realized, thereby improving the convenience of controlling the water softener; and the hardness of bathing water is determined in view of user features, thereby improving the accuracy of determining the hardness, and improving the bathing experience of a user.

IPC Classes  ?

• G05B 15/02 - Systems controlled by a computer electric
• G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]

Abstract

The present application belongs to the technical field of water heaters and specifically relates to a refrigerant detection method, an apparatus, a device, and a storage medium, which are used for improving a use effect of an air energy water heater. In the refrigerant detection method provided in an embodiment of the present application, a preset heating time is first determined according to an ambient temperature, and an actual heating time corresponding to the temperature of a water tank increasing by a preset temperature value during heating is determined according to the temperature of the water tank; and then it is determined whether a water heater is currently lacking refrigerant according to the preset heating time and the actual heating time. By means of the present solution, the accuracy of a refrigerant detection result can be improved while lowering the cost of a water heater, thereby improving a use effect of a water heater.

IPC Classes  ?

• F24H 1/18 - Water-storage heaters

Abstract

The present application belongs to the technical field of heating machines, and in particular, relates to a heating machine control method and apparatus, a device, and a storage medium, used to improve heating results of a heating machine. The heating machine control method comprises: acquiring an ambient temperature of a position where an outdoor unit of a heating machine is located and a water outlet temperature of the heating machine; according to the ambient temperature and the water outlet temperature, determining a maximum operating frequency corresponding to the heating machine; according to an actual operating frequency and the maximum operating frequency of the heating machine, determining whether to defrost the outdoor unit; and when it is determined to defrost the outdoor unit, defrosting the outdoor unit. In the present solution, whether to defrost is determined according to the operating frequency of the heating machine, which can improve accuracy of defrosting control of the heating machine, and also improve heating results of the heating machine.

IPC Classes  ?

• F24D 19/10 - Arrangement or mounting of control or safety devices
• F24F 11/42 - DefrostingPreventing freezing of outdoor units
• F25B 47/02 - Defrosting cycles

Abstract

A heat-pump water heater and a control method therefor. The heat-pump water heater comprises a water tank (3) and a controller, wherein the water tank (3) is divided into multiple heating regions in the height direction, a condenser (41) is provided in each heating region, and every two adjacent condensers (41) are connected in series by means of a communicating pipeline; and a secondary expansion valve (6) is provided on the communicating pipeline between every two adjacent condensers (41), and the controller is in communication connection with a main expansion valve (5) and the secondary expansion valves (6) to control the opening degree of the main expansion valve (5) to be greater than that of the secondary expansion valves (6) in a rapid heating mode. With the above configuration, in the rapid heating mode, a refrigerant is throttled in one or more of the heating regions, such that only water in one or more of the heating regions is heated, thereby achieving fast heating speed so as to achieve rapid heating.

IPC Classes  ?

• F24H 4/02 - Water heaters
• F25B 30/00 - Heat pumps
• F24H 9/20 - Arrangement or mounting of control or safety devices

Abstract

A control method and a controller for a heat pump water heater, and a water heater. The water heater comprises a first condenser (21) and a second condenser (22) arranged one above the other along a water tank (1); a refrigerant outlet of the first condenser (21) is connected to a refrigerant inlet of the second condenser (22) by means of a first refrigerant branch pipe (31), and the first refrigerant branch pipe (31) is provided with an adjustment valve (311); the refrigerant inlet of the second condenser (22) is further connected to a refrigerant main pipe (30) by means of a second refrigerant branch pipe (32), and the second refrigerant branch pipe (32) is provided with a switch valve (321). The controller is communicationally connected to the adjustment valve (311) and the switch valve (321), separately.

IPC Classes  ?

• F24H 4/02 - Water heaters
• F24H 9/20 - Arrangement or mounting of control or safety devices
• F25B 30/02 - Heat pumps of the compression type

Abstract

An electric leakage detection circuit (101), an electric leakage protection circuit (10), and a household appliance. The electric leakage detection circuit (101) comprises a charged conductor (G) with an alternating current, and a connecting end (H) for connecting to a conductor (B) to be tested, wherein the connecting end (H) is connected to a voltage detection circuit; the voltage detection circuit comprises a first coupling capacitor (C1), a sampling resistor (R1) and a second coupling capacitor (C2) which are successively connected; and the first coupling capacitor (C1) is connected to the conductor (B) to be tested, and the second coupling capacitor (C2) is grounded. By means of adding a capacitor structure with a coupling property to the electric leakage detection circuit (101), detection reference points of voltages at two ends of the sampling resistor (R1) form a relatively strong and stable coupling with a reference potential, and therefore, the measurement is stable and reliable.

IPC Classes  ?

• G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere

Abstract

Relating to the field of smart home appliances, an electricity leakage detection method and an apparatus, and an electronic device, comprising: upon receiving electricity leakage alarm information, the electricity leakage alarm information representing the occurrence of electricity leakage among a plurality of smart home appliance devices, performing state switching on the plurality of smart home appliance devices sequentially to obtain electrical circuit state information detected after each state switch (S101); and on the basis of the electrical circuit state information detected after each state switch, determining a smart home appliance device in which electricity leakage has occurred among the plurality of smart home appliance devices (S102). Because the electrical circuit state information that represents electricity leakage conditions will also change after the state of the smart home appliance device in which electricity leakage has occurred is switched, it is thus determined whether electricity leakage has occurred. By means of the present method, a cloud server can perform electricity leakage detection on smart home appliance devices in a home that are not equipped with electricity leakage detection units, thereby discovering and localizing devices leaking electricity in a timely manner, improving the safety of electricity use.

IPC Classes  ?

• G01R 31/52 - Testing for short-circuits, leakage current or ground faults

Abstract

A heat exchange device, a water heater and an air conditioner, which relate to the technical field of electrical appliances. The heat exchange device comprises a compressor (10), a first condenser (20), a second condenser (30) and an evaporator (40), wherein the compressor (10) is provided with a compressor outlet (11), a first inlet (12) and a second inlet (13); the second end of the first condenser (20) is connected to the first end of the second condenser (30), and the second end of the second condenser (30) is connected to the first end of the evaporator (40); when the heat exchange device is in a heating state, the first end of the first condenser (20) is connected to the compressor outlet (11), and the second end of the evaporator (40) is connected to the first inlet (12) of the compressor (10); and a gas-liquid separation component (50) connected to the second inlet (13) is further arranged between the first condenser (20) and the second condenser (30), and the gas-liquid separation component (50) is used for separating a gas and a liquid in a fluid medium, feeding the liquid into the second condenser (30), and feeding the gas into the compressor (10) from the second inlet (13).

IPC Classes  ?

• F25B 6/04 - Compression machines, plants or systems, with several condenser circuits arranged in series

Abstract

An electric leakage detection circuit (101), an electric leakage protection circuit, and a household appliance. The electric leakage detection circuit comprises a charged conductor (G) with an alternating current, and a connecting end (H) for connecting to a conductor (B) to be tested, wherein the connecting end (H) is connected to a first end of a first coupling capacitor (C1), a second end of the first coupling capacitor (C1) is connected to a first end of a fourth coupling capacitor (C4), and a second end of the fourth coupling capacitor (C4) is grounded; the charged conductor (G) is connected to a first end of a second coupling capacitor (C2), a second end of the second coupling capacitor (C2) is connected to a first end of a third coupling capacitor (C3), and a second end of the third coupling capacitor (C3) is grounded; and a sampling resistor (R1) is connected between an intersection point of the second end of the second coupling capacitor (C2) and the first end of the third coupling capacitor (C3), and an intersection point of the second end of the first coupling capacitor (C1) and the first end of the fourth coupling capacitor (C4). In the present electric leakage detection circuit (101), voltage measurement reference points (E) are respectively connected, in the form of double capacitors, to the charged conductor (G) and a null line (N), such that detection reference points (E) of voltages at two ends of the sampling resistor (R1) form a relatively strong and stable coupling with a reference potential (F), and therefore, detection is stable and reliable.

IPC Classes  ?

• G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere

Abstract

A power storage module (3) and an electric water heater, the power storage module (3) comprising: several storage batteries (31), the storage batteries (31) being used for storing electrical energy; and a heat dissipation rack (32), the heat dissipation rack (32) being used for installing the storage batteries (31) and being used for dissipating heat released by the storage batteries (31); the storage batteries (31) are in thermal conduction connection with the heat dissipation rack (32).

IPC Classes  ?

• H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
• H01M 10/00 - Secondary cellsManufacture thereof
• F24H 9/20 - Arrangement or mounting of control or safety devices

Abstract

A control method for a heat-pump water heater, comprising: a fitting calculation step, comprising (11) calculating energy efficiency ratios of a compressor monomer at different evaporation temperatures, condensation temperatures and compressor operating frequencies; (12) fitting an energy efficiency ratio formula; and (13) calculating a first-order derivative of the energy efficiency ratio formula, and obtaining an optimal operating frequency formula of the compressor by making an equation value of the first-order derivative be 0; and a starting operation step, comprising (21) periodically obtaining the evaporation temperature and the condensation temperature, calculating the optimal operating frequency of the compressor, and adjusting the compressor based on the optimal operating frequency.

IPC Classes  ?

• F24H 9/20 - Arrangement or mounting of control or safety devices

Abstract

Disclosed in the present invention is a heat pump system that has a hot water preparation function. The heat pump system comprises a compressor, an indoor heat exchanger, a throttling device, and an outdoor heat exchanger connected by pipelines to form a circulation flow path. A first control device is provided on the circulation flow path so as to switch the flow direction of a refrigerant in circulation flow path. The indoor heat exchanger comprises a first heat exchanger for performing heat exchange on an indoor air flow and a second heat exchanger for performing heat exchange on a water tank of a water heater. A second control device is provided on the circulation flow path, so that the first heat exchanger or the second heat exchanger are independent of each other, or the first heat exchanger and the second heat exchanger jointly access the circulation flow path. Also disclosed is a control method for the heat pump system that has the hot water preparation function described above. When water stored in the water tank of the water heater is heated and an air conditioning system cools the indoor air flow, the refrigerant flowing out of the compressor first performs heat exchange with the water stored in the water tank of the heat pump to heat the water stored in the water tank, and then performs heat exchange with an outdoor air flow for condensation.

IPC Classes  ?

• F25B 29/00 - Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
• F25B 13/00 - Compression machines, plants or systems, with reversible cycle
• F25B 41/04 - Disposition of valves
• F24F 12/00 - Use of energy recovery systems in air conditioning, ventilation or screening