122results about How to "Improve heating comfort" patented technology

The invention discloses an air-conditioner internal and external unit cleaning method. The method comprises the steps that an indoor heat exchanger is controlled to enter a frosting mode; operation frequency of an air-conditioner, the opening degree of a throttling device and the rotating speed of an indoor fan are adjusted to enable evaporating temperature of the indoor heat exchanger to be kept within the preset range and the surface of the indoor heat exchanger to be frosted; frosting of the indoor heat exchanger lasts for time t1, later, frequency of a compressor is reduced, a four-way valve is controlled to be reversed, an outdoor heat exchanger enters a frosting mode, and meanwhile, the indoor heat exchanger is defrosted; the operation frequency of the air-conditioner, the opening degree of the throttling device and the rotating speed of an outdoor fan are adjusted, the evaporation temperature of the outdoor heat exchanger is kept within the preset range, and the surface of the outdoor heat exchanger is frosted; frosting of the outdoor heat exchanger lasts for time t2, the compressor is controlled to be shut down, and the indoor fan and the outdoor fan are kept starting until cleaning is completed. According to the air-conditioner internal and external unit cleaning method, the problem that in the prior art, the surface of the heat exchanger is cleaned through condensate water, and the effect is poor can be solved.

The invention relates to an air conditioner and a defrosting control method thereof. According to the defrosting control method, whether defrosting control needs to be conducted or not is judged by the way of judging the relation between outdoor environment temperature and outdoor coiled tube temperature, and the optimization time point for entering in the defrosting control can be accurately judged. After the defrosting control is conducted, the frequency of a compressor is changed, and after switching frequency is reached, a four-way valve is directly switched to conduct defrosting control. After defrosting is completed, the frequency of the compressor is changed, and after the switching frequency is reached, the four-way valve is directly switched so that defrosting operation can be achieved. By means of the air conditioner and the defrosting control method thereof, the precision for entering in and exiting out of defrosting can be guaranteed, meanwhile, due to the fact that halting can not occur to the compressor in the defrosting process, heating capacity attenuation caused by halting of the compressor is reduced, the defrosting cycle is shortened, and the heating comfort and the heating performance of the air conditioner are improved.

The invention provides an air-conditioner and a control method and control device of the air-conditioner. The control method includes the steps that when it is detected that the air-conditioner enters a heating mode, a target indoor temperature value of the air-conditioner, the currently set indoor draught fan rotational speed and the current set air outlet opening degree of an air guide strip are obtained; a current indoor temperature value, a current temperature value of an indoor heat exchanger of the air-conditioner and a current outdoor draught fan rotational speed are obtained; a target outdoor draught fan rotational speed is determined according to the current indoor temperature value and the target indoor temperature value, and the current outdoor draught fan rotational speed is adjusted to be the target outdoor draught fan rotational speed, so an outdoor draught fan can operate at the target outdoor draught fan rotational speed; a target indoor draught fan rotational speed and a target air outlet opening degree are determined according to the current temperature value of the indoor heat exchanger and a preset temperature value, the currently set indoor draught fan rotational speed is adjusted to be the target indoor draught fan rotational speed, and the current set air outlet opening degree is adjusted to be the target air outlet opening degree. Through the technical scheme, heating comfort can be improved, and therefore use experience of users can be promoted.

The invention provides a phase-changing heat accumulation floor heating terminal device pertaining to building heating technique field. The invention employs phase-changing material as heat storage medium for heating. The device, from above to below, includes a floor decoration layer, a phase-changing material layer, an air duct, a radiation protection film, a thermal insulation layer and a floor base layer in turn; keels are arranged between the floor decoration layer and the floor base layer, at least a heat supply waterpipe or a electrical heating film are buried in the phase-changing material layer between adjacent keels; a wind gap is arranged at both ends of the air duct to communicate with indoor air. The phase-changing material supplies heat for indoor heating by heat conduction upwards and convection current, meanwhile heat supply of the phase-changing material is adjusted by air duct and indoor aeration speed, which further regulates and controls heat supply speed. The invention resolves defects of discommodity of heat supply speed adjustment of phase-changing floor energy storage mode, finity of phase-changing material availability, and the invention effectively decreases thermal transmission damage of floor heating downwards.

The invention discloses a defrosting control method of an air conditioning system. The method comprises the following steps: when a defrosting mode of the air conditioning system is operated, an outdoor environment temperature and a coil temperature of an outdoor heat exchanger are obtained; and a defrosting operation frequency of a compressor of the air conditioning system is dynamically adjusted according to the outdoor environment temperature and the coil temperature of the outdoor heat exchanger. The invention further discloses an air conditioning system and a computer readable storage medium. When the defrosting mode of the air conditioning system is operated, the operation frequency of the compressor is dynamically adjusted according to the outdoor environment temperature and the coil temperature of the outdoor heat exchanger, so that the defrosting time is shortened, and the heating comfort of the air conditioning system is improved.

The invention discloses a control method of an engine electronic water pump. The control method includes the steps that an actual water temperature of an engine, a load of the engine and rotating speed data are collected; according to the actual water temperature of a water outlet of the engine, operation working conditions of the engine include a warming stage, a heating stage and a water temperature protecting stage; whether a working state of the engine is at any stage of the above stages or not is sequentially judged; when the working state of the engine is at the warming stage, the electronic water pump reduces the supplying of cooling liquid, and the engine rapidly warms up; when the working state of the engine is at the heating stage, the electronic water pump supplies cooling liquid at the lowest demand, and energy consumption of the electronic water pump is reduced; and when the working state of the engine is at the water temperature protecting stage, the electronic water pumpsupplies cooling liquid at full power. The operation working conditions of the engine are divided into multiple stages, a cooling system performs supplying according to demands at each stage, the lowest power loss and fuel oil consumption are realized, and the requirements for rapid heating and rapid cooling are met.

The invention relates to technical field of air conditioning, in particular to an energy storage-type air conditioning system. The energy storage-type air conditioning system comprises a compressor, a four-way valve, an outdoor heat exchanger, a first stop valve, an energy storage module and an indoor heat exchanger which are connected in sequence; the energy storage module and the indoor heat exchanger are respectively connected with the four-way valve through a second stop valve; the energy storage module comprises an energy storage coiler, a first expansion valve and a second expansion valve, wherein the first expansion valve and the second expansion valve are respectively arranged at two ends of the energy storage coiler; the energy storage coiler is arranged in a phase-change material; the first expansion valve is connected with the first stop valve; the second expansion valve is connected with the indoor heat exchanger; through the energy storage module and by controlling the opening of all electromagnetic valves and the expansion valves, various running modes of the system are realized, the performance of the existing air conditioning system is improved, and the energy storage-type air conditioning system can use electricity in off-peak hours.

The invention relates to an air-conditioner starting control method and system, a starting device and an air-conditioner. The control method includes the steps that after a starting mode instruction is received, whether a refrigerant needs to be preheated or not is determined according to the starting mode information and / or the heat exchange tube temperature of an indoor unit heat exchanger (11), and if yes, a liquid-state refrigerant at the liquid-state refrigerant circulating side of the indoor unit heat exchanger (11) is started to be preheated; a reversing valve (4) is controlled to reverse and switch the refrigerant to be in a heating mode after heating is conducted by a first preset time; and an indoor fan (12) is controlled to operate when the refrigerant temperature meets the requirements. By the adoption of the control method, the liquid-state refrigerant at the liquid-state refrigerant circulating side of the indoor unit heat exchanger can be preheated before being reversed and switched to be in the heating mode through the reversing valve, the refrigerant temperature can meet the starting conditions of the indoor fan within a short time in reversing or after reversing of the reversing valve, high voltage protection is avoided, and therefore normal operation of a unit is guaranteed, and the heating comfort is improved.

The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof. The air conditioner comprises an upper fan assembly and a lower fanassembly, and further comprises an upper air opening corresponding to the upper fan assembly, a lower air opening corresponding to the lower fan assembly, and an air-out channel connected to the upperair opening and the lower air opening. The air conditioner control method comprises the following steps of: selecting, to be specific, selecting a refrigeration mode or a heating mode; and controlling, to be specific, in the refrigeration mode, selecting an upper and lower air-out mode or an upper air-out mode, and controlling the rotating speed of a fan in the upper fan assembly to increase at the base speed, and the rotating speed of a fan in the lower fan assembly to decrease at the base speed, in the heating mode, selecting the upper and lower air-out mode, and controlling the rotating speed of the fan in the lower fan assembly to increase at the base speed. The power of the fans is used reasonably while the comfort level is improved, and the wasting of electricity is reduced.

The invention provides an air conditioner defrosting control method and device, and an air conditioner. The air conditioner defrosting control method includes the steps that the outer pipe temperatureof the air conditioner is continuously acquired at a preset time interval; an acquired outer pipe temperature data set is compared with a preset temperature, when the acquired plurality of outer pipetemperature data meet the preset condition, the air conditioner is controlled to perform defrosting, and it is avoided that the phenomenon of frequent defrosting or defrosting without frost occurs, and heating comfort of the air conditioner is affected. By acquiring the outer pipe temperature data set, meanwhile the observation period on the air conditioner is prolonged, when the acquired plurality of outer pipe temperature data meet the preset condition, the air conditioner is controlled to perform defrosting, it is avoided that the phenomenon of frequent defrosting or defrosting without frost occurs, and heating comfort of the air conditioner is affected, and the precision of defrosting of the air conditioner without an outdoor environment temperature sensing device is improved.

The invention belongs to the technical field of air conditioner control, and discloses an air conditioner, a control method, computer equipment and a readable storage medium. The control method comprises the following steps of detecting the indoor environment temperature, the surface temperature of a copper pipe of an indoor heat exchanger and the outdoor environment temperature, and detecting thecontinuous opening / closing time of a lower air door of the air conditioner and the running state parameters of a compressor; judging that a refrigerating mode or heating mode operation instruction needs to be executed indoors currently, executing a refrigerating mode, and controlling the opening and closing states of the lower air door; and executing a heating mode, and controlling the running rotating speed of the lower fan. In the refrigeration mode, discomfort caused by air blowing feeling can be reduced on the basis that indoor temperature drop is met, in the heating mode, indoor thermalcomfort can be improved, and the purpose of saving energy is achieved. In the refrigeration mode, the discomfort brought to a user by the air blowing feeling is greatly reduced. In the heating mode, the temperature difference between the head and the feet is reduced by 0.97-1.71 DEG C at the position 2 m away from the air conditioner, and the heating comfort is greatly improved.

The invention discloses an air conditioner indoor unit. The air conditioner indoor unit comprises a surface frame with an air outlet, an air deflector which is movably connected to the surface frame and covers the position of the air outlet, a control panel which is arranged in the surface frame, a step motor which is electrically connected to the control panel, and a turbulent flow plate which is fixedly connected to the step motor, wherein the turbulent flow plate is fixed to the surface frame, and covers the position of the air outlet; the turbulent flow plate is provided with spray holes which are adjustable in hole diameter size in a rotary mode under the drive action of the step motor, and are distributed unevenly so as to regulate velocity of airflow which flows through the air outlet. According to the air conditioner indoor unit, air speed is precisely controlled and reduced step by step by combining the spray holes with different diameters in the turbulent flow plate, so that the indoor air temperature is controlled, and therefore, refrigerating and heating comfort of the air conditioner are improved, and the user experience is improved.

The invention belongs to the technical field of thermoelectricity, and relates to a high back pressure heat and power cogeneration system coupled with exhaust steam heat supply of a non-reheat steam turbine. A non-reheat medium-pressure steam turbine and generator II are added to the power generation system, and the heating system mainly includes a high backpressure heating condenser, a non-reheat medium-pressure steam turbine, a heat network heater, a remote heat network and a short-range heat network. The exhaust steam from the low-pressure cylinder of the main steam turbine enters the heating condenser to condense and release heat. The circulating water in the condenser absorbs heat and enters the short-distance heating network or heating network heater. The exhaust steam from the steam turbine is further heated and enters the remote heating network, and the return water from the remote and short-range heating networks is mixed and then enters the condenser. The invention utilizes the waste heat of the exhaust steam of the steam turbine to reduce the loss of the cooling source; the return water of the short-range and remote heating network is mixed, so that the temperature of the return water of the heating network entering the condenser is reduced, and the utilization efficiency of waste heat is improved. The invention is suitable for the heat supply transformation of 300MW and above large-capacity units with short-range low-temperature heat demand.

The invention provides an air conditioner control method and device, a storage medium and an air conditioner. The method comprises the steps that after the air conditioner is started, when it is detected that the indoor environment temperature meets a first preset condition, a compressor is controlled to be shut down, and the shut-down frequency is accumulated; after the compressor is controlled to stop, when it is detected that the indoor environment temperature meets a second preset condition, the compressor is controlled to be restarted for operation; and when the compressor is shut down for the Nth time, the target frequency of restarting operation after the compressor is shut down for the Nth time is determined according to the operation time from restarting after the compressor is shut down for the (N-1) th time to the operation time when the compressor is shut down for the Nth time. According to the scheme, the starting and be shut down frequency of the air conditioner can be reduced, and therefore fluctuation of the indoor temperature is reduced.

The invention relates to a defrosting control method and device of an air conditioner system. The defrosting control method of the air conditioner system comprises the steps that when the air conditioner system needs defrosting, alternately controlling a part of condensers of an outdoor unit to be in the defrosting state and the other part of condensers to be in the normal work state at the same time is conducted; when it is determined that all the condensers complete defrosting, defrosting is ended, wherein the outdoor unit comprises at least two condensers. According to the defrosting control method of the air conditioner system, the air conditioner system adopts at least two condensers to alternately conduct defrosting, in this way, during defrosting, it is always guaranteed that at least one condenser is in the normal work state, the operation mode of an evaporator of a heating indoor unit keeps constant, an indoor draught fan does not stop, the indoor environment temperature is prevented from being lowered, and therefore the heating comfort and system reliability of the air conditioner system are effectively improved; and the situation that a user mistakes that an air conditioner breaks down can be avoided.

The invention relates to a solar heating heat-accumulating system, comprising a solar thermal collector (1), a heat accumulator (2), a circulating pump (4), heating terminals (5), an expansion pot (6), a heat accumulator inlet valve (7) and a bypass valve (8). The system uses closed cycle; the outlet of the solar thermal collector (1) is connected with the heat accumulator (2) which is connected with the heating terminals (5) in series; the outlets of heating terminals (5) are provided with the circulating pump (4); a bypass is arranged between the solar thermal collector (1) and the heat accumulator (2) and is provided with the bypass valve (8) thereon; the expansion pot (6) is arranged on a pipeline; the structure of the heat accumulator (2) is in the mode of a heat exchanger, and hot water is not directly contacted with heat accumulating materials; the heat accumulator (2) is a square box or a cylindric pot, the box is filled with the heat accumulating materials (3), finned tubes (9) are arranged between the heat accumulating materials (3), and water can flow through the finned tubes (9) to exchange heat with the heat accumulating materials (3).

The invention discloses an air conditioner indoor unit. The air conditioner indoor unit comprises a surface frame with an air outlet, an air guiding plate movably connected to the surface frame and covering the air outlet, a control plate arranged inside the surface frame, a step motor electrically connected with the control plate, and a first turbulent plate and a second turbulent plate which are fixedly connected with the step motor, wherein the first turbulent plate and the second turbulent plate are further rotationally connected onto the surface frame; the step motor rotates the first turbulent plate or the second turbulent plate to the air outlet so as to cover the air outlet under the control of the control plate; first spray holes are formed in the first turbulent plate and second spray holes with diameters and sizes different from those of the first spray holes are formed in the second turbulent plate so as to adjust airflow speed at the air outlet. The invention further discloses a control method of an air conditioner. According to the technical scheme provided by the invention, the air speed can be gradually controlled and reduced through the spray holes with different diameters in different turbulent plates, so that cooling and heating comfort of the air conditioner is improved and thus a user experience is improved.

The invention relates to the technical field of heat exchange systems, in particular to a heating system and a control method thereof. The heating system includes a heating system body, a fan heat exchange end and a radiation heat exchange end and a flow separating controller, wherein the heating system body is suitable for supplying heat to a circulation pipeline; the fan heat exchange end and the radiation heat exchange end are arranged at the tail end of the circulation pipeline and communicate with the heating system body; and the flow separating controller is arranged on the circulation pipeline and suitable to control the outlet end of the heating system body and the flow of the fan heat exchange end and the radiation heat exchange end. The heating system connects fan heat exchange and radiation heat dissipation in parallel, and the fan heat exchange end provides rapid temperature rise for a room and shortens the time for heating; and when the room temperature rises to a set temperature, in order to ensure the comfort of heating, radiant heat dissipation is used for heating, heat dissipation is more uniform, the drying of room air is avoided, the heating comfort is greatly improved, so that the heating rate and heating comfort are considered at the same time.

The invention provides an air conditioner, an indoor unit thereof and a method for controlling the air conditioner. The indoor unit of the air conditioner at least comprises two indoor heat exchangers; one of the indoor heat exchangers is a main indoor heat exchanger and is arranged on the upper side of a body of the air conditioner; the other indoor heat exchangers are auxiliary indoor heat exchangers and are arranged on the lower side of the body of the air conditioner. The air conditioner, the indoor unit thereof and the method have the advantages that the air conditioner is reasonable in structural arrangement, the main indoor heat exchanger, main cross-flow fans, the auxiliary indoor heat exchangers and auxiliary cross-flow fans run simultaneously in a heating procedure, the heating comfortableness of the room air conditioner is enhanced by means of reasonably utilizing an air circulating system, accordingly, a heating effect can be effectively improved, the temperature difference between upper air and lower air in a room is reduced, and the problem of poor comfortableness of an existing room air conditioner is effectively solved; the air conditioner and the indoor unit thereof are simple in structure and principle, can be controlled conveniently and practically and are easy to implement.

The invention provides an air pipe indoor machine. The air pipe indoor machine comprises a shell, wherein the inner part of the shell is fixedly provided with a heat exchanger, the lower part of the heat exchanger is provided with a water pan, one side of the heat exchanger is provided with a draught fan, the shell is provided with an air inlet and an air outlet which are respectively positioned at two sides of the heat exchanger, and the air outlet is arranged on the lower side wall of the shell. According to the air pipe indoor machine provided by the invention, the air outlet is arranged on the lower side wall of the shell, thus an air outlet direction of the air pipe indoor machine is directly enabled to face downwards, the problem that the downward air outlet direction of a common small-sized household air pipe indoor machine can be realized by installing an air pipe on the common small-sized household air pipe indoor machine is effectively solved, and the air outlet efficiency and the heating comfort are increased.

The invention relates to a multifunctional intelligent control terminal system used for centralized heat supply, which is characterized in that a main controller is respectively connected with a wired communication and wireless communication interface, an integrated control valve bank, a sensor and a human-machine interface and power supply manager, wherein the wired communication and wireless communication interface is used for performing communication with the external part, the integrated control valve bank is connected with the main controller, the wired communication and wireless communication interface is used by the main controller to perform communication with the external part, the sensor is used for detecting water flowing conditions of a heat supply pipeline, and the human-machine interface and power supply manager is used for performing interaction with a user and receiving a power supply. The integrated control valve bank is provided with a check valve assembly and a valve driving assembly on the valve body, wherein the check valve assembly is connected with a water outlet, the valve driving assembly is connected with a valve and used for driving the valve, the lower part of the valve body is provided with a temperature measurement assembly connected with the internal part of the valve body, the valve driving assembly is provided with a controller, and an output end of the controller is connected with an input end of the valve driving assembly. The multifunctional intelligent control terminal system can control parameters such as heat supply pressure, flow and the like of users locally, remotely or automatically, and hydraulic balance of the system is kept. Meanwhile, uneven heat distribution is avoided, and the energy consumption of heat supply is reduced.

The invention provides an air conditioner indoor unit with reversible air supply and an air conditioner. The air conditioner indoor unit comprises a shell, a first air opening, second air openings anda counter-rotating fan, wherein an internal air duct is formed in the shell, one end of the internal air duct communicates with the first air opening, the other end of the internal air duct communicates with the second air openings, and the counter-rotating fan is arranged in the internal air duct; the cross section of the shell is of a polygonal structure, and the second air openings are arranged at the lower part of the shell, and the second air openings are arranged on more than two sides of the shell with the polygonal structure. According to the invention, the air conditioner indoor unitcan realize cooling in summer and shower type upper air outlet, heating in winter and carpet type lower air outlet; airflow circulation area of air inlet or air outlet can be improved, the airflow non-uniformity between the counter-rotating fan and a heat exchanger can be reduced, and the noise can be reduced.

The invention discloses a ceiling machine. The ceiling machine comprises a panel. The panel is provided with an air inlet and air outlets formed in the periphery of the air inlet. The air outlets areprovided with inner side walls close to the air inlet, and outer side walls close to the periphery of the panel. The ceiling machine further comprises first air deflectors and second air deflectors. The first air deflectors are rotationally arranged in the air outlets. The second air deflectors are rotationally arranged in the air outlets and are attached to the outer side walls. Each first air deflector is provided with a first rotation position for airflow blown out of the air outlets to downwards flow, and a second rotation position for airflow blown out of the air outlets to be obliquely guided out towards the outer sides of the air outlets. The first air deflectors and the second air deflectors are in linkage so that when the first air deflectors are moved to the first rotation positions from the second rotation positions, the second air deflectors are driven to deflect inwards. According to the purpose of the technical scheme, the heating effect of the ceiling machine is improved.

The invention provides an air conditioner and a control method thereof. The air conditioner comprises a compressor, a four-way valve, a condenser, a throttling device and an evaporator, all of which are connected in sequence. The air conditioner further comprises a thermoelectric refrigeration device, an adsorption material, an electric heating device and an air supply fan. The thermoelectric refrigeration device is located on the outdoor side, and a cold end and a heat end are formed when the thermoelectric refrigeration device is powered on. The adsorption material is used for collecting condensate water generated on the surface of the cold end. The electric heating device is used for heating outdoor air to the separation temperature of the adsorption material, so that water vapor is separated out through the adsorption material when the heated outdoor air flows through the adsorption material. The air supply fan is used for supplying the separated-out water vapor to an indoor room through an air supply pipeline. According to the air conditioner, when the air conditioner carries out heating in winter, the indoor air humidity can be effectively increased and improved, the heating comfort of the air conditioner is improved, and the air conditioner is simple in structure and reasonable in design.

The invention provides an air conditioner indoor machine, a control method thereof and an air conditioner. The air conditioner indoor machine comprise a cross flow fan blade (1), the axis direction ofthe cross flow fan blade (1) is inclined relative to the vertical direction, and an included angle a is formed; and the included angle is larger than 0 degree and is smaller than 90 degrees, so thata wind outflow face (11) of the cross flow fan blade (1) makes wind flow out obliquely and downwardly. Due to the air conditioner indoor machine, the control method thereof and the air conditioner, airflow during heating of the air conditioner can be downwards conveyed, hot air can be blown to the ground more easily, the amount of hot air falling to the ground is increased, and therefore the airflow flowing direction requirement during heating can be well met, a user can personally experience the warming effect from the feet to the head, the room temperature effectively meets the set requirement, and the user can have a very good heating comfort effect.

The invention relates to an electric heating cooperative optimization operation method. The electric heating cooperative optimization operation method comprises the steps that first an equivalent thermal parameter model of electric heating equipment is established; then a temperature utility model of an electric heating load is established, then the maximum power limit of a power system which allows electric heating and power generation and the minimum start and stop time of the electric heating equipment are taken as constraints, the goal is to optimize the comfort degree of heating for users, an objective function and constraint conditions are established, and an integrated environment optimization scheduling model is formed based on non-regenerative electric heating equipment. Electricheating users in a study area are concentrated in a dispatching layer, the proposed integrated environment optimization scheduling model based on the non-regenerative electric heating equipment is used for solving, an optimal power dispatching scheme is obtained and transmitted to each intelligent control systems of the electric heating equipment, and an intelligent electric heating network whichoperates intelligently is formed. The electric heating cooperative optimization operation method can effectively solve the problem of a load spike and power loss caused by the non-regenerative electric heating equipment in a simple operation mode, effectively improves the temperature effect of the users, controls the load peak value of the power system, reduces the running cost of the system, andensures the heating economical efficiency of the users.

The invention provides a control method and a device for improving heating comfort and an air conditioner. The method comprises the steps that the current environment temperature is obtained; the target air outlet angle, the target air outlet speed and the target air outlet temperature of the air conditioner are determined according to the environment temperature; wherein the temperature difference between the target air outlet temperature and the environment temperature is smaller than a preset temperature difference threshold value, the target air outlet angle is larger than a preset angle threshold value, and the target air outlet speed is larger than a preset air speed threshold value; the target air outlet angle and the target air outlet speed are both in positive correlation with the temperature difference; and the air conditioner is controlled to operate according to the target air outlet angle, the target air outlet speed and the target air outlet temperature. On the premise that the structure of the air conditioner is not changed, the hot air landing effect can be improved, and therefore the heating use comfort of the air conditioner is improved.