CN112539538A

CN112539538A - Air mixing device of air conditioner, air conditioner and air outlet control method and device of air conditioner

Info

Publication number: CN112539538A
Application number: CN202011534679.4A
Authority: CN
Inventors: 董明珠; 刘华; 张仕强; 陈敏
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-03-23

Abstract

The invention discloses an air-conditioning mixing device, an air-conditioning, an air-conditioning air outlet control method and device. The air-conditioning mixing device includes: a return air cavity for introducing return air; at least one mixing air cavity, which is arranged adjacent to the return air cavity and can be communicated with the return air cavity; each mixing air cavity is provided with a The mixing fan is used to provide power, so that part of the return air in the return air cavity enters the mixing air cavity to be mixed with the air out of the heat exchanger; the mixing air cavity is provided with an air outlet. By setting the return air cavity and the mixed air cavity, the present invention can mix the return air and the outlet air of the heat exchanger, and use the mixing fan to control the return air volume participating in the mixing, so as to adjust the actual outlet temperature of the mixed air, and realize natural Wind sense, provide users with suitable natural wind, can directly provide natural wind to the area where the user is located, and blow the user directly will not cause the user to feel bad. energy consumption.

Description

Air mixing device of air conditioner, air conditioner and air outlet control method and device of air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air mixing device of an air conditioner, the air conditioner and an air outlet control method and device of the air conditioner.

Background

When the air conditioning unit is in refrigeration/heating operation, indoor return air passes through the indoor heat exchanger and then is conveyed to the indoor through the fan after heat exchange of the heat exchanger, two main ways of conveying the air are adopted at present, one way is a heat exchange direct blowing way, namely the cold air or hot air after heat exchange is directly conveyed to the indoor without considering the position of indoor personnel; the other type is a person-avoiding air supply type, namely the air outlet angle is adjusted by considering the distribution of indoor persons during air outlet, and then cold air or hot air after heat exchange is conveyed indoors. In the first mode, cold or hot air after heat exchange is directly conveyed and blown to a human body, so that the problem of poor user feeling exists; the second mode is through keeping away people's air supply, and it is poor to have solved user's body and felt, nevertheless because more the transport of the cold or hot air after will exchanging heat need not the space that the user need not to use, has caused the problem that system energy consumption is high.

Aiming at the problems of poor user body feeling and high energy consumption caused by air outlet of an air conditioner in the prior art, an effective solution is not provided at present.

Disclosure of Invention

The embodiment of the invention provides an air conditioner air mixing device, an air conditioner and an air conditioner air outlet control method and device, and aims to at least solve the problems that in the prior art, the air conditioner air outlet causes poor user feeling and high energy consumption.

In order to solve the above technical problem, an embodiment of the present invention provides an air mixing device for an air conditioner, including: the return air cavity is used for introducing return air; the mixed air cavity is arranged adjacent to the return air cavity and can be communicated with the return air cavity; a mixed fan is arranged in each mixed air cavity and used for providing power, so that part of return air in the return air cavity enters the mixed air cavity and is mixed with the outlet air of the heat exchanger; an air outlet is arranged on the mixed air cavity.

Optionally, the mixing fan is disposed in the mixing air cavity and close to the return air cavity.

Optionally, the mixed air cavity is provided with a first air port for introducing return air from the return air cavity.

Optionally, a second air port is arranged on the mixed air cavity and used for introducing air out of the heat exchanger.

Optionally, the method further includes: and the temperature detection module is arranged at the air outlet and used for detecting the actual air outlet temperature.

An embodiment of the present invention further provides an air conditioner, including: the controller is in communication connection with at least one mixing fan and is used for controlling the rotating speed of the at least one mixing fan.

Optionally, the method further includes: and the position detection module is used for detecting the position of the indoor human body.

The embodiment of the invention also provides an air conditioner air outlet control method, which is applied to the air conditioner provided by the embodiment of the invention and comprises the following steps: periodically acquiring the temperature difference between the actual outlet air temperature and the target outlet air temperature; determining a current operation mode of the air conditioner; and adjusting the rotating speed and the specified temperature of the mixing fan according to the temperature difference and the current operation mode, wherein the specified temperature is a target evaporation temperature or a target condensation temperature.

Optionally, according to the temperature difference and the current operation mode, adjusting the rotation speed and the specified temperature of the hybrid fan includes: adjusting the rotating speed of the mixing fan according to the temperature difference and the current operation mode; and adjusting the specified temperature according to the rotating speed of the mixing fan and the current operation mode.

Optionally, adjusting the rotation speed of the hybrid fan according to the temperature difference and the current operation mode includes: judging the interval of the temperature difference; under the condition that the temperature difference is smaller than or equal to a first preset temperature, if the current operation mode is a refrigeration mode, controlling the mixing fan to increase a first preset rotating speed on the basis of the current rotating speed, and if the current operation mode is a heating mode, controlling the mixing fan to decrease the first preset rotating speed on the basis of the current rotating speed; under the condition that the temperature difference is greater than or equal to a second preset temperature, if the current operation mode is a refrigeration mode, controlling the mixing fan to reduce a second preset rotating speed on the basis of the current rotating speed, and if the current operation mode is a heating mode, controlling the mixing fan to increase the second preset rotating speed on the basis of the current rotating speed; and controlling the mixing fan to maintain the current rotating speed under the condition that the temperature difference is greater than a first preset temperature and less than a second preset temperature.

Optionally, adjusting the specified temperature according to the rotation speed of the hybrid fan and the current operation mode includes: judging the interval of the current rotating speed of the hybrid fan; under the condition that the current rotating speed of the mixing fan is smaller than a first rotating speed limit value, if the current operation mode is a refrigeration mode, controlling the target evaporation temperature to reduce a third preset temperature, and if the current operation mode is a heating mode, controlling the target condensation temperature to increase the third preset temperature; under the condition that the current rotating speed of the mixing fan is greater than a second rotating speed limit value, if the current operation mode is a refrigeration mode, controlling the target evaporation temperature to increase by a fourth preset temperature; if the current operation mode is a heating mode, controlling the target condensing temperature to reduce a fourth preset temperature; and under the condition that the current rotating speed of the mixing fan is greater than or equal to a first rotating speed limit value and less than or equal to a second rotating speed limit value, controlling the target evaporation temperature or the target condensation temperature to maintain the current value.

Optionally, before adjusting the specified temperature according to the rotation speed of the hybrid fan and the current operation mode, the method further includes: if the adjusted rotating speed of the mixing fan reaches the maximum rotating speed or the minimum rotating speed of the mixing fan, or the mixing fan maintains the current rotating speed, adjusting the specified temperature according to the rotating speed of the mixing fan and the current operation mode; and if the rotating speed of the adjusted mixing fan does not reach the maximum rotating speed or the minimum rotating speed of the mixing fan, continuously acquiring the temperature difference between the actual air outlet temperature and the target air outlet temperature after running for preset time so as to perform cycle control.

Optionally, according to the temperature difference and the current operation mode, adjusting the rotation speed and the specified temperature of the hybrid fan includes: adjusting the specified temperature according to the temperature difference and the current operation mode; and adjusting the rotating speed of the mixing fan according to the specified temperature and the current operation mode.

Optionally, adjusting the specified temperature according to the temperature difference and the current operation mode includes: judging the interval of the temperature difference; under the condition that the temperature difference is smaller than or equal to a first preset temperature, if the current operation mode is a refrigeration mode, controlling the target evaporation temperature to increase by a third preset temperature, and if the current operation mode is a heating mode, controlling the target condensation temperature to increase by the third preset temperature; under the condition that the temperature difference is greater than or equal to a second preset temperature, if the current operation mode is a refrigeration mode, controlling the target evaporation temperature to reduce a fourth preset temperature, and if the current operation mode is a heating mode, controlling the target condensation temperature to reduce the fourth preset temperature; and controlling the target evaporation temperature or the target condensation temperature to maintain the current value under the condition that the temperature difference is greater than a first preset temperature and less than a second preset temperature.

Optionally, adjusting the rotation speed of the hybrid fan according to the specified temperature and the current operation mode includes: in a refrigeration mode, judging the section of the target evaporation temperature; if the target evaporation temperature is greater than the upper limit value of the evaporation temperature, controlling the hybrid fan to increase a second preset rotating speed on the basis of the current rotating speed; if the target evaporation temperature is lower than the lower limit value of the evaporation temperature, controlling the mixing fan to reduce a first preset rotating speed on the basis of the current rotating speed; and if the target evaporation temperature is greater than or equal to the lower limit value of the evaporation temperature and less than or equal to the upper limit value of the evaporation temperature, controlling the mixing fan to maintain the current rotating speed.

Optionally, adjusting the rotation speed of the hybrid fan according to the specified temperature and the current operation mode includes: under the heating mode, judging the section of the target condensation temperature; if the target condensation temperature is larger than the upper limit value of the condensation temperature, controlling the mixing fan to reduce a second preset rotating speed on the basis of the current rotating speed; if the target condensation temperature is smaller than the lower limit value of the condensation temperature, controlling the mixing fan to increase a first preset rotating speed on the basis of the current rotating speed; and if the target condensation temperature is greater than or equal to the lower limit value of the condensation temperature and less than or equal to the upper limit value of the condensation temperature, controlling the mixing fan to maintain the current rotating speed.

Optionally, before adjusting the rotation speed of the hybrid fan according to the specified temperature and the current operation mode, the method further includes: if the adjusted target evaporation temperature reaches the maximum temperature or the minimum temperature of the evaporation temperature, or the adjusted target condensation temperature reaches the maximum temperature or the minimum temperature of the condensation temperature, or the target evaporation temperature or the target condensation temperature maintains the current value, adjusting the rotating speed of the mixing fan according to the specified temperature and the current operation mode; if the adjusted target evaporation temperature does not reach the maximum temperature or the minimum temperature of the evaporation temperature, or the adjusted target condensation temperature does not reach the maximum temperature or the minimum temperature of the condensation temperature, the temperature difference between the actual air outlet temperature and the target air outlet temperature is continuously obtained after the operation is carried out for the preset time, so that the circulation control is carried out.

Optionally, before the difference in temperature between actual air-out temperature and target air-out temperature is periodically obtained, still include: receiving a natural wind function starting instruction; determining a target air-out temperature, acquiring a current actual air-out temperature, and calculating a temperature difference between the current actual air-out temperature and the target air-out temperature; and determining the initial rotating speed of the hybrid fan according to the target air-out temperature and the calculated temperature difference, or determining the initial rotating speed of the hybrid fan according to the current actual air-out temperature and the calculated temperature difference.

Optionally, before the difference in temperature between actual air-out temperature and target air-out temperature is periodically obtained, still include: acquiring indoor human body position information; determining an air outlet angle according to the indoor human body position information; calculating the distance from the air outlet to the human body according to the installation height of the air outlet and the air outlet angle; and determining the rotating speed of the heat exchange fan according to the calculated distance.

The embodiment of the invention also provides an air conditioner air outlet control device, which is applied to the air conditioner provided by the embodiment of the invention, and the device comprises: the acquiring module is used for periodically acquiring the temperature difference between the actual air outlet temperature and the target air outlet temperature; the determining module is used for determining the current operation mode of the air conditioner; and the control module is used for adjusting the rotating speed and the specified temperature of the mixing fan according to the temperature difference and the current operation mode, wherein the specified temperature is a target evaporation temperature or a target condensation temperature.

Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method according to the embodiments of the present invention.

An embodiment of the present invention further provides an electronic device, including: one or more processors; memory for storing one or more programs that, when executed by the one or more processors, cause the one or more processors to implement a method according to an embodiment of the invention.

By applying the technical scheme of the invention, the return air and the outlet air of the heat exchanger can be mixed by arranging the return air cavity and the mixed air cavity, the mixed air blower is used for controlling the return air quantity participating in mixing so as to adjust the actual outlet air temperature of the mixed air, realize natural wind feeling, provide proper natural wind for users, directly provide natural wind for the areas where the users are located, directly blow the users without causing poor body feeling of the users, and avoid excessively conveying cold or heat to the spaces which the users do not need to use, thereby reducing energy consumption.

Drawings

Fig. 1 is a schematic structural diagram of an air mixing device of an air conditioner according to a first embodiment of the present invention;

fig. 2 is a flowchart of an air conditioner air outlet control method according to a second embodiment of the present invention;

fig. 3 is a flowchart of an air conditioner air outlet control method according to a third embodiment of the present invention;

fig. 4 is another flowchart of an air conditioner air outlet control method according to a third embodiment of the present invention;

fig. 5 is a block diagram of an air conditioner outlet control device according to a fourth embodiment of the present invention;

description of reference numerals:

the air return device comprises an air return cavity 1, a mixed air cavity 2, a mixed fan 3, a first air port 4, a temperature detection module 5, a position detection module 6, an indoor heat exchange fan 7, an indoor heat exchanger 8 and a panel 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.

Example one

The embodiment provides an air conditioner air mixing device, which can be integrally designed with an air conditioner indoor unit and also can be detachably installed in the air conditioner indoor unit as an independent component. The air mixing device of the air conditioner can realize natural wind feeling and provide proper natural wind for users. The natural wind feeling refers to that air flows, the temperature of the flowing air is close to the temperature acceptable to people, the flowing air is generally controlled to be about 27 ℃, the effect similar to that of turning on an air conditioner and a fan is achieved, for example, when the indoor wind speed is 0.5m/s and the indoor air temperature is 30-34 ℃, the air is blown to the surface of the skin of a human body, and due to the fact that body surface evaporation exists, the temperature felt by the human body is approximately 27 ℃, and the body feeling temperature is appropriate.

Fig. 1 is a schematic structural diagram of an air mixing device of an air conditioner according to a first embodiment of the present invention, and as shown in fig. 1, the air mixing device of the air conditioner includes: return air cavity 1, at least one mixed wind cavity 2 and at least one hybrid fan 3.

The return air cavity 1 is used for introducing return air, the return air cavity 1 can be arranged in a return air duct of an indoor unit of the air conditioner, and the return air cavity 1 is communicated with a return air inlet on the panel 9 so that indoor return air can enter the return air cavity 1.

And the at least one mixed air cavity 2 is arranged adjacent to the return air cavity 1 and can be communicated with the return air cavity 1. The mixed air cavity 2 is used for mixing the outlet air (namely the outlet air of the heat exchanger) and the return air after heat exchange of the indoor heat exchanger.

All be provided with hybrid fan 3 in every mixed wind cavity 2 for power is provided for mix with the heat exchanger air-out in the partial return air entering mixed wind cavity 2 in the return air cavity 1. That is, the mixing fan 3 can control the amount of return air involved in mixing.

An air outlet is formed in the mixed air cavity 2, and specifically, the air outlet in the mixed air cavity 2 is communicated with an air outlet in a panel of an indoor unit of the air conditioner. The air outlet outputs mixed air with natural wind feeling under the condition that the natural wind function is started. If the natural wind function is not started, the mixing fan does not work, and the air outlet directly outputs the air out of the heat exchanger.

The return air cavity 1 is communicated with an air inlet channel of the indoor heat exchanger, so that return air entering the indoor unit through a return air inlet is partially fed into the indoor heat exchanger for heat exchange, and partially fed into the mixed air cavity for mixing under the driving of the mixed fan.

In this embodiment, mix the air-out and include: the return air and the heat exchanger air outlet, and the actual air outlet temperature of the mixed air is determined by the air outlet temperature of the heat exchanger and the mixed return air quantity. The actual air outlet temperature can be adjusted by controlling the air outlet temperature of the heat exchanger and/or the mixed air return amount, and natural wind feeling is realized.

This embodiment is through setting up return air cavity and mixed wind cavity, can mix return air and heat exchanger air-out, and utilize the air mixing machine control to participate in the return air volume of mixing, with the actual air-out temperature of adjusting mixed wind, realize the natural wind sense, provide suitable natural wind for the user, can directly provide natural wind to the user place region, the direct-blowing user can not lead to the user to feel poor yet, need not too much need not the space transport cold volume or the heat that the user need not to use, thereby energy consumption has been reduced.

The mixed fan 3 is arranged at the position close to the return air cavity 1 in the mixed air cavity 2, so that the return air in the return air cavity can be introduced into the mixed air cavity more conveniently and effectively.

The mixed air cavity 2 is provided with a first air port 4 for introducing return air from the return air cavity 1.

Specifically, a supporting part can be arranged between the return air cavity and the mixed air cavity to serve as the separation of the two cavities, and an opening (serving as a first air port 4) is formed in the supporting part to guarantee smooth conveying of return air. The mixing fan may be mounted on the support member.

And a second air port is arranged on the mixed air cavity and used for introducing air out of the heat exchanger. The second air port is opposite to the air outlet, so that air can be conveniently discharged. In practical application, the mixed air cavity can be directly communicated with an air outlet channel of the indoor heat exchanger.

When the indoor return air passes through the return air inlet of the panel 9, part of the return air enters the mixed air cavity 2 through the first air inlet 4 under the driving of the mixed fan 3 and is mixed with the outlet air passing through the indoor heat exchanger 8, and then the return air is discharged into the indoor through the air outlet of the panel 9.

The air mixing device of the air conditioner may further include: and the temperature detection module 5 is arranged at the air outlet and used for detecting the actual air outlet temperature of the mixed air. The air outlet temperature can be timely adjusted by monitoring the actual air outlet temperature so as to reach the target air outlet temperature and meet the user demand.

The present embodiment also provides an air conditioner, including: the controller is connected with the air mixing device of the air conditioner. The controller is in communication connection with the at least one mixing fan and is used for controlling the rotating speed of the at least one mixing fan. The controller is also connected with the refrigerant system and used for controlling the target evaporation temperature or the target condensation temperature of the refrigerant system.

The actual outlet air temperature of the mixed air is determined by the outlet air temperature of the heat exchanger and the return air volume participating in mixing. The mixed return air volume is controlled by the rotating speed of the mixed fan, the air outlet temperature of the heat exchanger is controlled by the acting of the compressor, and the acting size of the compressor is determined by the target evaporation temperature or the target condensation temperature, so that the effective control on the air outlet temperature of the mixed air can be realized by controlling the rotating speed of the mixed fan, the target evaporation temperature or the target condensation temperature through the controller, and natural wind sense and energy conservation are realized.

In one embodiment, the air conditioner may further include: and the position detection module 6 is used for detecting the position of the indoor human body. According to the indoor human body position, can set up air-out angle and air-out speed, effectively carry out the transport of heat or cold volume according to indoor human condition, for example, aim at human position with the air-out angle, carry natural wind to the user. The position detection module can be arranged on an air conditioner indoor unit, preferably, the position detection module can be arranged at the air outlet, for example, one position detection module is arranged at each air outlet.

Example two

The embodiment provides an air conditioner air outlet control method which is applied to an air conditioner provided by the embodiment of the invention. Fig. 2 is a flowchart of an air conditioner air outlet control method according to a second embodiment of the present invention, and as shown in fig. 2, the method includes the following steps:

s201, the temperature difference between the actual air outlet temperature and the target air outlet temperature is periodically acquired.

And S202, determining the current operation mode of the air conditioner.

And S203, adjusting the rotating speed and the specified temperature of the mixing fan according to the temperature difference and the current operation mode, wherein the specified temperature is the target evaporation temperature or the target condensation temperature.

Wherein, can set up the time of predetermineeing, obtain the difference in temperature of actual air-out temperature and target air-out temperature according to predetermineeing the time periodicity to carry out periodic timely adjustment to hybrid fan rotational speed and appointed temperature based on the difference in temperature, realize the cycle control to the air-out temperature. The actual outlet air temperature and the target outlet air temperature are both for the natural air output by the air conditioner. The actual air outlet temperature can be detected by a temperature detection module at the air outlet, and can also be detected by a movable indoor temperature sensor and fed back to the controller in a wireless mode. The target outlet air temperature may be set by a user or may be a default value.

The operation mode of the air conditioner includes: a cooling mode and a heating mode. The magnitude of the target evaporation temperature or the target condensation temperature directly reflects the working output of the compressor. When the refrigeration mode operates, the lower the target evaporation temperature is, the larger the output work of the compressor is; when the heating mode is operated, the higher the target condensing temperature is, the larger the output work of the compressor is. Mix the air-out and include: the return air and the heat exchanger air outlet, and the actual air outlet temperature is determined by the air outlet temperature of the heat exchanger and the mixed return air quantity. The mixed return air quantity is controlled by the rotating speed of the mixing fan, and the air outlet temperature of the heat exchanger is controlled by the acting of the compressor. Therefore, the rotating speed and the specified temperature of the mixing fan are comprehensively adjusted according to the temperature difference and the current operation mode, the actual air outlet temperature can be effectively controlled, natural wind sensation is realized, the target evaporation temperature is increased during refrigeration, and the target condensation temperature is reduced during heating, so that the purpose of energy conservation can be achieved.

The air conditioner air outlet control method of the embodiment periodically obtains the temperature difference between the actual air outlet temperature and the target air outlet temperature based on the air conditioner air mixing device, determines the current operation mode of the air conditioner, and adjusts the rotating speed and the specified temperature of the mixing fan according to the temperature difference and the current operation mode, wherein the specified temperature is the target evaporation temperature or the target condensation temperature. Mix the wind device through the air conditioner and can mix return air and heat exchanger air-out, participate in the return air volume of mixing through mixed fan rotational speed control, control heat exchanger air-out temperature through target evaporating temperature or target condensation temperature, thereby realize the regulation of mixed wind air-out temperature, realize the natural wind sense, provide suitable natural wind for the user, can directly provide the natural wind to the user place region, the direct-blowing user can not lead to the user to feel poor yet, need not too much to carry cold volume or heat to the space that the user need not to use, thereby energy consumption has been reduced. In addition, the target evaporation temperature and the target condensation temperature are controlled, so that the capacity output of the system can be reduced, and the aim of saving energy is fulfilled.

In one embodiment, before periodically obtaining the temperature difference between the actual outlet air temperature and the target outlet air temperature, the method further includes: receiving a natural wind function starting instruction; determining a target air-out temperature, acquiring a current actual air-out temperature, and calculating a temperature difference between the current actual air-out temperature and the target air-out temperature; and determining the initial rotating speed of the hybrid fan according to the target air-out temperature and the calculated temperature difference, or determining the initial rotating speed of the hybrid fan according to the current actual air-out temperature and the calculated temperature difference.

After the natural wind function is started by a user, the hybrid fan starts to work, the initial rotating speed of the hybrid fan needs to be determined, the corresponding default initial value can be used for the target evaporation temperature or the target condensation temperature, and after the air conditioner runs for the preset time, the temperature difference can be obtained to perform circulation control. In practical application, a plurality of temperature difference ranges and a plurality of target air-out temperature ranges (or a plurality of actual air-out temperature ranges) can be divided in advance, and the initial rotating speeds of the mixed fans corresponding to different temperature difference ranges and different target air-out temperature ranges are set, or the initial rotating speeds of the mixed fans corresponding to different temperature difference ranges and different actual air-out temperature ranges are set, and the corresponding relation is stored. After the natural wind function is started, the corresponding initial rotating speed of the mixing fan can be determined according to the temperature difference range of the current temperature difference and the temperature range of the current target air-out temperature (or according to the temperature difference range of the current temperature difference and the temperature range of the current actual air-out temperature).

This embodiment can effectively confirm hybrid fan's initial rotational speed fast according to the difference in temperature and air-out temperature for hybrid fan starts the operation.

In one embodiment, before periodically obtaining the temperature difference between the actual outlet air temperature and the target outlet air temperature, the method further includes: acquiring indoor human body position information; determining an air outlet angle according to indoor human body position information; calculating the distance from the air outlet to the human body according to the installation height and the air outlet angle of the air outlet; and determining the rotating speed of the heat exchange fan according to the calculated distance.

The heat exchange fan is a heat exchange fan corresponding to the indoor heat exchanger, that is, the indoor heat exchange fan 7 shown in fig. 1. The indoor human body position can be detected by the position detection module. In the present embodiment, the natural wind is directed toward the human body, that is, the wind is directed along with the human body. The rotating speed values of the heat exchange fans corresponding to different distances can be preset, and after the distances between the air outlets and the indoor human body are obtained through calculation, the corresponding rotating speeds of the heat exchange fans can be determined according to preset information. In addition, the rotating speed of the heat exchange fan can be set by a user.

This embodiment can effectively confirm air-out angle and air-out speed (corresponding to heat transfer fan's rotational speed) fast based on indoor human positional information to provide natural wind to the user place region with definite air-out angle and air-out speed, can not lead to the user to feel poor, also reduced the cold volume or the heat that need not the space of using to the user and provided, reduced the energy consumption.

When the rotating speed and the designated temperature of the mixing fan are adjusted, the adjustment can be realized in the following two ways, which are described below respectively.

(1) The rotating speed of the mixing fan is adjusted first, and then the specified temperature is adjusted.

Specifically, according to the difference in temperature and current mode of operation, the rotational speed and the appointed temperature of adjustment hybrid fan include: adjusting the rotating speed of the mixing fan according to the temperature difference and the current operation mode; and adjusting the specified temperature according to the rotating speed and the current operation mode of the hybrid fan. After the rotating speed and the specified temperature of the hybrid fan are adjusted, the hybrid fan continuously obtains the temperature difference between the actual air outlet temperature and the target air outlet temperature after running for the preset time, so that the circulation control is performed.

Further, according to the difference in temperature and current mode of operation, the rotational speed of adjustment hybrid fan includes:

judging the interval of the temperature difference (delta T);

under the condition that the temperature difference is less than or equal to a first preset temperature (T0), if the current operation mode is a cooling mode, controlling the hybrid fan to increase a first preset rotating speed (delta Vb) on the basis of the current rotating speed, and if the current operation mode is a heating mode, controlling the hybrid fan to decrease the first preset rotating speed on the basis of the current rotating speed;

under the condition that the temperature difference is greater than or equal to a second preset temperature (T1), if the current operation mode is a cooling mode, controlling the hybrid fan to reduce a second preset rotating speed (delta Va) on the basis of the current rotating speed, and if the current operation mode is a heating mode, controlling the hybrid fan to increase the second preset rotating speed on the basis of the current rotating speed;

and controlling the mixing fan to maintain the current rotating speed under the condition that the temperature difference is greater than the first preset temperature and less than the second preset temperature.

Wherein, the stable range of the temperature difference is (T0, T1), if the delta T is less than or equal to T0, the current actual outlet air temperature is lower. If for the refrigeration mode, indoor ambient temperature is higher than actual air-out temperature this moment, in order to improve present air-out temperature, need introduce more indoor return air and get into mixed wind cavity, mix the intensification with the air-out of indoor heat exchanger, consequently need increase mixed fan's rotational speed. If for the mode of heating, indoor ambient temperature is less than actual air-out temperature this moment, in order to improve present air-out temperature, needs to reduce the indoor return air of introducing into mixed wind cavity, consequently needs to reduce mixed fan's rotational speed.

If the delta T is larger than or equal to T1, the current actual outlet air temperature is higher. If for the refrigeration mode, indoor ambient temperature is higher than actual air-out temperature this moment, in order to reduce current air-out temperature, needs to reduce the indoor return air of introducing into mixed wind cavity, consequently needs to reduce mixed fan's rotational speed. If for the mode of heating, indoor ambient temperature is less than actual air-out temperature this moment, in order to reduce current air-out temperature, needs increase the indoor return air of introducing into mixed wind cavity, consequently needs increase mixed fan's rotational speed.

Through the steps, the rotating speed of the mixing fan can be effectively adjusted, and the air return quantity participating in mixing is controlled, so that the air outlet temperature of mixed air is controlled, and natural wind feeling is realized.

Further, according to the rotational speed and the current operating mode of hybrid fan, adjust the appointed temperature, include:

judging the interval of the current rotating speed (V) of the hybrid fan;

under the condition that the current rotating speed of the hybrid fan is smaller than a first rotating speed limit value (Vm), if the current operating mode is a cooling mode, controlling the target evaporation temperature to be reduced by a third preset temperature (delta t), and if the current operating mode is a heating mode, controlling the target condensation temperature to be increased by the third preset temperature;

under the condition that the current rotating speed of the hybrid fan is greater than a second rotating speed limit value (Vn), if the current operating mode is a refrigeration mode, controlling the target evaporation temperature to increase by a fourth preset temperature (delta t'); if the current operation mode is the heating mode, controlling the target condensation temperature to reduce a fourth preset temperature;

and controlling the target evaporation temperature or the target condensation temperature to maintain the current value under the condition that the current rotating speed of the mixing fan is greater than or equal to the first rotating speed limit value and less than or equal to the second rotating speed limit value.

The stable range of the rotating speed V of the hybrid fan is that Vm is less than or equal to V and less than or equal to Vn, and Vm and Vn are preset proper rotating speed ranges which can be empirical values or test values, for example, the rotating speed range which is tested to enable the efficiency of the hybrid fan to be the highest.

When V is less than Vm, the current rotating speed of the mixed fan is too low, and the return air quantity entering the mixed air cavity is less.

If for the refrigeration mode, indoor ambient temperature is higher than the air-out temperature this moment, because the current rotational speed of hybrid fan is low excessively, the return air volume that gets into the hybrid air cavity this moment is less, explains that indoor heat exchanger air-out temperature is on the high side, so do not need too much indoor air to get into the hybrid air cavity and mix, consequently, need reduce indoor heat exchanger air-out temperature to let more indoor air get into the hybrid air cavity, make the rotational speed of hybrid fan promote to in the stable range. Therefore, the target evaporation temperature can be reduced, the work output of the compressor is increased, and the purpose of reducing the air outlet temperature of the indoor heat exchanger is achieved.

If for the mode of heating, indoor ambient temperature is less than actual air-out temperature this moment, because the current rotational speed of hybrid fan is crossed lowly, the amount of return air that gets into the hybrid air cavity this moment is less, explains that the air-out temperature of indoor set heat exchanger is on the low side, so do not need too much indoor air to get into the hybrid air cavity and mix, consequently, need improve indoor heat exchanger air-out temperature to let more indoor air get into the hybrid air cavity, make the rotational speed of hybrid fan promote to in the stable range. Therefore, the target condensation temperature can be increased, the work output of the compressor is increased, and the purpose of increasing the air outlet temperature of the indoor heat exchanger is achieved.

When V is larger than Vn, the current rotating speed of the mixing fan is over high, and the return air quantity entering the mixing air cavity is too large.

If for the refrigeration mode, indoor ambient temperature is higher than actual air-out temperature this moment, because the current rotational speed of hybrid fan is too high, the return air volume that gets into the mixed wind cavity this moment is too big, explains that indoor heat exchanger air-out temperature is on the low side, so need too much indoor air to get into mixed wind cavity and mix, consequently, need improve indoor heat exchanger air-out temperature to reduce the indoor air and get into mixed wind cavity, make hybrid fan's rotational speed reduce to in the stable range. Therefore, the target evaporation temperature can be increased, the work output of the compressor can be reduced, and the purpose of increasing the air outlet temperature of the indoor heat exchanger can be achieved.

If for the mode of heating, indoor ambient temperature is less than actual air-out temperature this moment, because the current rotational speed of hybrid fan is too high, and the return air volume that gets into the hybrid air cavity this moment is too big, explains that indoor heat exchanger air-out temperature is on the high side, so need too much indoor air to get into the hybrid air cavity and mix, consequently, need reduce indoor heat exchanger air-out temperature to reduce the indoor air and get into the hybrid air cavity, make the rotational speed of hybrid fan reduce to in the stable range. Therefore, the aim of reducing the air outlet temperature of the indoor heat exchanger can be achieved by reducing the target condensation temperature and reducing the work output of the compressor.

The step is based on the target evaporation temperature or the target condensation temperature of the mixed fan rotating speed adjustment, and the air outlet temperature of the indoor heat exchanger can be effectively adjusted, so that the air outlet temperature of mixed air is controlled, and natural wind sense is realized.

Further, before adjusting the specified temperature according to the rotation speed and the current operation mode of the hybrid fan, the method further comprises: if the adjusted rotating speed of the mixing fan reaches the maximum rotating speed or the minimum rotating speed of the mixing fan, or the mixing fan maintains the current rotating speed, the specified temperature is adjusted according to the rotating speed and the current operation mode of the mixing fan; and if the rotating speed of the adjusted mixing fan does not reach the maximum rotating speed or the minimum rotating speed of the mixing fan, continuously acquiring the temperature difference between the actual air outlet temperature and the target air outlet temperature after running for preset time so as to perform cycle control. Under the condition that the delta T is less than or equal to T0 or the delta T is more than or equal to T1, if the rotating speed of the adjusted mixing fan does not reach the maximum rotating speed or the minimum rotating speed of the mixing fan, the rotating speed of the mixing fan is continuously and periodically adjusted; and if the rotating speed of the adjusted mixing fan reaches the maximum rotating speed or the minimum rotating speed of the mixing fan, or the mixing fan maintains the current rotating speed under the condition that T0 < delta T < T1, which indicates that the rotating speed of the mixing fan is stable, starting to adjust the specified temperature.

This mode is adjusted earlier and is mixed fan rotational speed, adjusts appointed temperature again, can realize the natural wind sense, and comparatively energy-conserving.

(2) The specified temperature is adjusted first, and then the rotating speed of the mixing fan is adjusted.

Specifically, according to the difference in temperature and current mode of operation, the rotational speed and the appointed temperature of adjustment hybrid fan include: adjusting the specified temperature according to the temperature difference and the current operation mode; and adjusting the rotating speed of the mixing fan according to the specified temperature and the current operation mode. After the specified temperature and the rotating speed of the mixing fan are adjusted, the temperature difference between the actual air outlet temperature and the target air outlet temperature is continuously obtained after the mixing fan runs for the preset time, so that the circulation control is performed.

Further, according to the temperature difference and the current operation mode, the specified temperature is adjusted, including:

judging the interval of the temperature difference (delta T);

under the condition that the temperature difference is less than or equal to a first preset temperature (T0), if the current operation mode is a cooling mode, controlling the target evaporation temperature to increase by a third preset temperature (delta T), and if the current operation mode is a heating mode, controlling the target condensation temperature to increase by the third preset temperature;

under the condition that the temperature difference is greater than or equal to a second preset temperature (T1), if the current operation mode is a cooling mode, controlling the target evaporation temperature to be reduced by a fourth preset temperature (delta T'), and if the current operation mode is a heating mode, controlling the target condensation temperature to be reduced by the fourth preset temperature;

and controlling the target evaporation temperature or the target condensation temperature to maintain the current value under the condition that the temperature difference is greater than the first preset temperature and less than the second preset temperature.

Wherein, the stable range of the temperature difference is (T0, T1), when the delta T is less than or equal to T0, the current actual outlet air temperature is lower. If the air conditioner is in the refrigeration mode, the indoor environment temperature is higher than the actual air outlet temperature, and under the condition that the air return quantity is not changed, the air outlet temperature of the indoor heat exchanger needs to be increased in order to increase the actual air outlet temperature, so that the target evaporation temperature needs to be increased, and the work output of the compressor is reduced. If the air conditioner is in a heating mode, the indoor environment temperature is lower than the air outlet temperature, and under the condition that the air return quantity is not changed, the air outlet temperature of the indoor heat exchanger needs to be increased in order to increase the actual air outlet temperature, so that the target condensation temperature needs to be increased, and the work output of the compressor is increased.

When the delta T is larger than or equal to T1, the current actual outlet air temperature is higher. If the air conditioner is in the refrigeration mode, the indoor environment temperature is higher than the air outlet temperature, and under the condition that the air return quantity is not changed, the air outlet temperature of the indoor heat exchanger needs to be reduced in order to reduce the actual air outlet temperature, so that the target evaporation temperature needs to be reduced, and the work output of the compressor is increased. If the air conditioner is in the heating mode, the indoor environment temperature is lower than the air outlet temperature, and under the condition that the air return quantity is not changed, the air outlet temperature of the indoor heat exchanger needs to be reduced in order to reduce the actual air outlet temperature, so that the target condensation temperature needs to be reduced, and the work output of the compressor is reduced.

Can effectively adjust appointed temperature through above-mentioned step, control indoor heat exchanger air-out temperature to control mixed wind air-out temperature realizes the natural wind sense.

Further, according to appointed temperature and current mode of operation, adjust the rotational speed of hybrid fan, include:

in the cooling mode, judging the interval of the target evaporation temperature (Tv);

if the target evaporation temperature is greater than the upper limit value (Tv2) of the evaporation temperature, controlling the hybrid fan to increase a second preset rotating speed (delta Va) on the basis of the current rotating speed;

if the target evaporation temperature is smaller than the lower limit value (Tv1) of the evaporation temperature, controlling to reduce the first preset rotating speed (delta Vb) of the mixing fan on the basis of the current rotating speed;

and if the target evaporation temperature is greater than or equal to the lower limit value of the evaporation temperature and less than or equal to the upper limit value of the evaporation temperature, controlling the mixing fan to maintain the current rotating speed.

Under the refrigeration mode, the indoor environment temperature is higher than the actual air outlet temperature, and the stable range of the target evaporation temperature Tv is Tv 1-Tv 2. Tv1 and Tv2 are preset suitable evaporating temperature ranges, and may be empirical values or test values, for example, evaporating temperature ranges tested to maximize compressor energy efficiency.

When Tv is greater than Tv2, it indicates that the target evaporation temperature is too high, the work output of the compressor is too small, the outlet air temperature of the indoor heat exchanger is too high, the return air quantity entering the mixed air cavity is too small, and the corresponding rotating speed of the mixed air fan is too low, so that the rotating speed of the mixed air fan needs to be increased, the return air quantity entering the mixed air cavity is increased, the target evaporation temperature of the system is forced to be reduced, and the work output of the compressor is increased.

When Tv is less than Tv1, it indicates that the target evaporation temperature is too low, the compressor work output is too large, the air outlet temperature of the indoor heat exchanger is low, the amount of return air entering the mixed air cavity is too much, and the corresponding rotating speed of the mixed air fan is too large, so that the rotating speed of the mixed air fan needs to be reduced, the amount of return air entering the mixed air cavity is reduced, the system is forced to raise the target evaporation temperature, and the work output of the compressor is reduced.

The rotating speed of the mixing fan is adjusted based on the target evaporation temperature in the refrigeration mode, and the return air quantity participating in mixing can be effectively adjusted, so that the outlet air temperature of the mixed air is controlled, and natural wind feeling is realized.

under the heating mode, judging the section of the target condensation temperature;

if the target condensation temperature is larger than the upper limit value (Tc2) of the condensation temperature, controlling the hybrid fan to reduce a second preset rotating speed (delta Va) on the basis of the current rotating speed;

if the target condensation temperature is smaller than the lower limit value (Tc1) of the condensation temperature, controlling to increase a first preset rotating speed (delta Vb) of the mixing fan on the basis of the current rotating speed;

and if the target condensation temperature is greater than or equal to the lower limit value of the condensation temperature and less than or equal to the upper limit value of the condensation temperature, controlling the mixing fan to maintain the current rotating speed.

In the heating mode, the indoor environment temperature is lower than the actual air outlet temperature, and the stable range of the target condensation temperature Tc is Tc 1-Tc 2. Tc1 and Tc2 are preset suitable condensation temperature ranges, and may be empirical values or test values, for example, condensation temperature ranges tested to maximize compressor energy efficiency.

When Tc is more than Tc2, the control of the target condensation temperature is over high, the work output of the compressor is over high, the air outlet temperature of the indoor heat exchanger is over high, the return air quantity entering the mixed air cavity is over high, and the rotating speed of the corresponding mixed fan is over high, so that the rotating speed of the mixed fan needs to be reduced, the return air quantity entering the mixed air cavity is reduced, the target condensation temperature of the system is forced to be reduced, and the work output of the compressor is reduced.

When Tc is less than Tc1, it indicates that the target condensation temperature is too low, the work output of the compressor is relatively low, the air outlet temperature of the indoor heat exchanger is relatively low, the amount of return air entering the mixed air cavity is relatively low, and the corresponding rotating speed of the mixed air fan is relatively low, so that the rotating speed of the mixed air fan needs to be increased, the amount of return air entering the mixed air cavity is increased, the target condensation temperature of the system is forced to be increased, and the work output of the compressor is increased.

The rotating speed of the mixing fan is adjusted based on the target condensation temperature in the heating mode, and the return air quantity participating in mixing can be effectively adjusted, so that the outlet air temperature of the mixed air is controlled, and natural wind sense is realized.

Further, before adjusting the rotation speed of the hybrid fan according to the specified temperature and the current operation mode, the method further includes: if the adjusted target evaporation temperature reaches the maximum temperature or the minimum temperature of the evaporation temperature, or the adjusted target condensation temperature reaches the maximum temperature or the minimum temperature of the condensation temperature, or the target evaporation temperature or the target condensation temperature maintains the current value, adjusting the rotating speed of the mixing fan according to the specified temperature and the current operation mode; if the adjusted target evaporation temperature does not reach the maximum temperature or the minimum temperature of the evaporation temperature, or the adjusted target condensation temperature does not reach the maximum temperature or the minimum temperature of the condensation temperature, the temperature difference between the actual air outlet temperature and the target air outlet temperature is continuously obtained after the operation is carried out for the preset time, so that the circulation control is carried out. Under the condition that the delta T is less than or equal to T0 or the delta T is more than or equal to T1, if the adjusted target evaporation temperature or the adjusted target condensation temperature does not reach the maximum temperature or the minimum temperature corresponding to each target evaporation temperature or the target condensation temperature, the target evaporation temperature or the target condensation temperature is continuously and periodically adjusted; and if the adjusted target evaporation temperature or target condensation temperature reaches the corresponding maximum temperature or minimum temperature, or if the target evaporation temperature or target condensation temperature maintains the current value under the condition that T0 < delta T < T1, which indicates that the target evaporation temperature or target condensation temperature is stable, starting to adjust the rotating speed of the mixing fan.

According to the mode, the designated temperature is adjusted firstly, and then the rotating speed of the mixing fan is adjusted, so that natural wind sense can be realized, and energy is saved.

EXAMPLE III

The air conditioner air outlet control method is described below with reference to a specific embodiment, but it should be noted that the specific embodiment is only for better describing the present application, and is not to be construed as a limitation to the present application. The same or corresponding terms as those of the above-described embodiments are explained, and the description of the present embodiment is omitted.

Referring to fig. 3, firstly adjusting the rotation speed of the hybrid fan, and then adjusting the target temperature (target evaporation temperature or target condensation temperature) controlled by the system, specifically includes the following steps:

and S301, after the user sets the natural wind function, the target air outlet temperature Tm of the natural wind can be manually set, and if the user does not set the target air outlet temperature, a default value can be used. The wind gear of the indoor heat exchange fan (namely the rotating speed of the fan, the speed for determining the actual air outlet) can be set by a user through a controller, and can also be automatically controlled, and particularly can be automatically determined according to the position of indoor personnel.

Specifically, the method for automatically determining the wind shield of the indoor heat exchange fan comprises the following steps: the wind shield of the indoor heat exchange fan is associated with the range of the spatial position, for example, the distance L corresponding to the wind shield A is less than or equal to L0, the distance L corresponding to the wind shield B is more than L0 and less than or equal to L1, the distance L corresponding to the wind shield C is more than L1 and less than or equal to L2, wherein the fan rotating speed relationship corresponding to the wind shield is that the wind shield A is more than the wind shield B and less than the wind shield C. When the position detection module detects the position of a person, the air outlet angle delta of the air deflector can be determined according to the position of the person, the system automatically calculates the distance L from the air inlet to the position of the person according to the memorized air outlet installation height and the determined air outlet angle delta, and then the interval corresponding to the distance L is judged to determine the air damper matched with the distance L.

And S302, detecting the current actual air outlet temperature Tr, and calculating the current temperature difference delta T as Tr-Tm. Specifically, the current actual air outlet temperature Tr can be detected through the temperature detection module, and the actual air outlet temperature Tr can also be detected by the movable indoor temperature sensor and fed back to the controller in a wireless mode.

And S303, determining the initial rotating speed V0 of the mixing fan through delta T and Tm (or through delta T and Tr), and setting the target evaporation temperature Tv (refrigeration mode) or the target condensation temperature Tc (heating mode) of system control as an initial value Tv0 or Tc 0.

For example, the initial rotation speed V0 of the hybrid fan may be determined according to table 1 below, that is, the unit detects the value of Δ T, Tm, and the corresponding initial rotation speed is determined according to the range of Δ T, Tm.

TABLE 1 initial rotational speed V0

And S304, detecting the delta T after continuously operating for T time.

S305, judging whether the delta T is in a stable range T0 < delta T < T1, and judging that the delta T is less than or equal to T0.

S306, when the delta T is less than or equal to T0, if the system is in a refrigeration mode, increasing the rotating speed of the hybrid fan by delta Vb on the basis of the current rotating speed; if the system is operated in a heating mode, the rotating speed of the hybrid fan is reduced by delta Vb on the basis of the current rotating speed; Δ Vb > 0. Then, the process proceeds to S311.

The stable range of the delta T is T0 < delta T < T1, and if the delta T is less than or equal to T0, the current actual air outlet temperature is low. If for the refrigeration mode, indoor ambient temperature is higher than actual air-out temperature this moment, in order to improve present air-out temperature, need introduce more indoor return air and get into mixed wind cavity, mix the intensification with the air-out of indoor heat exchanger, consequently need increase mixed fan's rotational speed. If for the mode of heating, indoor ambient temperature is less than actual air-out temperature this moment, in order to improve present air-out temperature, needs to reduce the indoor return air of introducing into mixed wind cavity, consequently needs to reduce mixed fan's rotational speed.

S307, judging whether the delta T is in the stable range T0 < delta T < T1, and judging that the delta T is more than or equal to T1.

S308, when the delta T is larger than or equal to T1, if the system is operated in a refrigeration mode, the rotating speed of the hybrid fan is reduced by delta Va on the basis of the current rotating speed; if the system is operated in a heating mode, the rotating speed of the mixing fan is increased by delta Va on the basis of the current rotating speed, wherein the delta Va is more than 0. Then, the process proceeds to S311.

The stable range of the delta T is T0 < delta T < T1, and if the delta T is more than or equal to T1, the current actual outlet air temperature is higher. If for the refrigeration mode, indoor ambient temperature is higher than actual air-out temperature this moment, in order to reduce current air-out temperature, needs to reduce the indoor return air of introducing into mixed wind cavity, consequently needs to reduce mixed fan's rotational speed. If for the mode of heating, indoor ambient temperature is less than actual air-out temperature this moment, in order to reduce current air-out temperature, needs increase the indoor return air of introducing into mixed wind cavity, consequently needs increase mixed fan's rotational speed.

S309, judging whether the delta T is in a stable range T0 < delta T < T1, and judging that the result is T0 < delta T < T1.

S310, when T0 < delta T < T1, the rotating speed of the hybrid fan maintains the current rotating speed, and then S312 is carried out.

S311, determine whether the adjusted rotation speed of the hybrid fan reaches the maximum rotation speed or the minimum rotation speed of the hybrid fan? If yes, the operation proceeds to S312, otherwise, the operation returns to S304, the operation continues for T time, and then delta T is detected, so that the rotation speed of the mixing fan is adjusted in a circulating mode.

S312, once the regulated rotating speed of the hybrid fan reaches the maximum rotating speed or the minimum rotating speed of the hybrid fan, or the current rotating speed is maintained unchanged, namely after the rotating speed of the hybrid fan is regulated stably, whether the rotating speed of the hybrid fan is within a given range Vm or more and V or more and Vn or not is judged.

S313, judging whether the rotating speed of the hybrid fan meets the condition that Vm is less than or equal to V and less than or equal to Vn, if so, entering S318, and if not, having two conditions: v < Vm or V > Vn.

And S314, judging whether the rotating speed of the hybrid fan meets the condition that Vm is less than or equal to V and less than or equal to Vn, and judging that V is less than Vm.

S315, when the current rotating speed V of the hybrid fan is less than Vm, if the system is operated in a refrigeration mode, the target evaporation temperature controlled by the system is reduced by delta t on the current basis; if the system is operated in a heating mode, increasing delta t on the current basis by the target condensing temperature controlled by the system; Δ t > 0. Then, the operation returns to S304, and Δ T is detected after T time to perform the loop control.

The stable range of the rotating speed V of the hybrid fan is that Vm is not less than V and not more than Vn, and when V is less than Vm, the current rotating speed of the hybrid fan is too low, and the return air quantity entering the hybrid air cavity is less.

If for the refrigeration mode, indoor ambient temperature is higher than the air-out temperature this moment, because the mixed fan current rotational speed is crossed lowly, the return air volume that gets into mixed wind cavity this moment is less, explains that indoor heat exchanger's air-out temperature is on the high side, so do not need too much indoor air to get into mixed wind cavity and mix, consequently, need reduce indoor heat exchanger's air-out temperature to let more indoor air get into mixed wind cavity, make mixed fan's rotational speed promote to in the stable range. Therefore, the compressor can increase work output by reducing the target evaporation temperature, and the purpose of reducing the air outlet temperature of the indoor heat exchanger is achieved.

If for the mode of heating, indoor ambient temperature is less than actual air-out temperature this moment, because the current rotational speed of hybrid fan is crossed lowly, the amount of return air that gets into the hybrid air cavity this moment is less, explains that the air-out temperature of indoor set heat exchanger is on the low side, so do not need too much indoor air to get into the hybrid air cavity and mix, consequently, need improve the air-out temperature of indoor heat exchanger to let more indoor air get into the hybrid air cavity, make the rotational speed of hybrid fan promote to in the stable range. Therefore, the target condensation temperature can be increased, the work output of the compressor is increased, and the purpose of increasing the air outlet temperature of the indoor heat exchanger is achieved.

S316, judging whether the rotating speed of the hybrid fan meets the condition that Vm is less than or equal to V and less than or equal to Vn, and judging that V is greater than Vn.

S317, when the current rotating speed V of the hybrid fan is larger than Vn, if the system is operated in a refrigeration mode, increasing delta t' on the current basis by the target evaporation temperature controlled by the system; if the system is operated in a heating mode, the target condensing temperature controlled by the system is reduced by delta t' on the current basis; Δ t' > 0. Then, the operation returns to S304, and Δ T is detected after T time to perform the loop control.

The stable range of the rotating speed V of the hybrid fan is that Vm is not less than V and not more than Vn, and when V is more than Vn, the current rotating speed of the hybrid fan is over high, and the return air quantity entering the hybrid air cavity is over large.

If for the refrigeration mode, indoor ambient temperature is higher than actual air-out temperature this moment, because the current rotational speed of hybrid fan is too high, the return air volume that gets into the hybrid air cavity this moment is too big, explains that indoor heat exchanger's air-out temperature is on the low side, so need too much indoor air to get into the hybrid air cavity and mix, consequently, need improve indoor heat exchanger's air-out temperature to reduce the indoor air and get into the hybrid air cavity, make hybrid fan's rotational speed reduce to within the stable range. Therefore, the aim of improving the air outlet temperature of the indoor heat exchanger can be achieved by improving the target evaporation temperature and reducing the work output of the compressor.

If for the mode of heating, indoor ambient temperature is less than actual air-out temperature this moment, because the current rotational speed of hybrid fan is too high, the return air volume that gets into the hybrid air cavity this moment is too big, explains that the air-out temperature of indoor heat exchanger is on the high side, so need too much indoor air to get into the hybrid air cavity and mix, consequently, need reduce the air-out temperature of indoor heat exchanger to reduce the indoor air and get into the hybrid air cavity, make the rotational speed of hybrid fan reduce to within the stable range. Therefore, the aim of reducing the air outlet temperature of the indoor heat exchanger can be achieved by reducing the target condensation temperature and reducing the work output of the compressor.

And S318, when the current rotating speed V of the hybrid fan meets that V is more than or equal to Vm and less than or equal to Vn, maintaining the current target evaporation temperature or target condensation temperature controlled by the system. Then, the operation returns to S304, and Δ T is detected after T time to perform the loop control.

Referring to fig. 4, firstly adjusting the target temperature (target evaporation temperature or target condensation temperature) controlled by the system, and then adjusting the rotation speed of the mixing fan, specifically includes the following steps:

s401, after the user sets the function of 'natural wind', the target air outlet temperature Tm of 'natural wind' can be manually set, and if the user does not set the target air outlet temperature, a default value can be used. The air gear of the indoor heat exchange fan (determining the actual air outlet speed) can be set by a user through the controller, can also be automatically controlled, and can be automatically determined according to the position of indoor personnel.

And S402, detecting the current actual air outlet temperature Tr, and calculating the current temperature difference delta T as Tr-Tm. Specifically, the current actual air outlet temperature Tr can be detected through the temperature detection module, and the actual air outlet temperature Tr can also be detected by the movable indoor temperature sensor and fed back to the controller in a wireless mode.

And S403, determining the initial rotating speed V0 of the mixing fan through delta T and Tm (or through delta T and Tr), and setting the target evaporation temperature Tv (refrigeration mode) or the target condensation temperature Tc (heating mode) of system control as an initial value Tv0 or Tc 0. Specifically, the initial rotation speed of the hybrid fan corresponding to the range of Δ T, Tm may be determined with reference to table 1, and details are not repeated here.

And S404, detecting the delta T after continuously operating for T time.

S405, judging whether the delta T is in a stable range T0 < delta T < T1, and judging that the delta T is less than or equal to T0.

S406, when the delta T is less than or equal to T0, the target evaporation temperature Tv or the target condensation temperature Tc controlled by the system is increased by delta T on the current basis, and the delta T is greater than 0. And then proceeds to S411.

The stable range of the delta T is T0 < delta T < T1, and when the delta T is less than or equal to T0, the current actual air outlet temperature is low. If the air conditioner is in the refrigeration mode, the indoor environment temperature is higher than the actual air outlet temperature, and under the condition that the air return quantity is not changed, the air outlet temperature of the indoor heat exchanger needs to be increased in order to increase the actual air outlet temperature, so that the target evaporation temperature needs to be increased, and the work output of the compressor is reduced. If the air conditioner is in a heating mode, the indoor environment temperature is lower than the air outlet temperature, and under the condition that the air return quantity is not changed, the air outlet temperature of the indoor heat exchanger needs to be increased in order to increase the actual air outlet temperature, so that the target condensation temperature needs to be increased, and the work output of the compressor is increased.

S407, whether the delta T is in the stable range T0 < delta T < T1 or not is judged, and the result is that the delta T is more than or equal to T1.

S408, when the delta T is larger than or equal to T1, the target evaporation temperature Tv or the target condensation temperature Tc controlled by the system is reduced by delta T 'on the basis of the current time, and the delta T' is larger than 0. And then proceeds to S411.

The stable range of the delta T is T0 < delta T < T1, and when the delta T is more than or equal to T1, the current actual outlet air temperature is higher. If the air conditioner is in the refrigeration mode, the indoor environment temperature is higher than the air outlet temperature, and under the condition that the air return quantity is not changed, the air outlet temperature of the indoor heat exchanger needs to be reduced in order to reduce the actual air outlet temperature, so that the target evaporation temperature needs to be reduced, and the work output of the compressor is increased. If the air conditioner is in the heating mode, the indoor environment temperature is lower than the air outlet temperature, and under the condition that the air return quantity is not changed, the air outlet temperature of the indoor heat exchanger needs to be reduced in order to reduce the actual air outlet temperature, so that the target condensation temperature needs to be reduced, and the work output of the compressor is reduced.

S409, whether the delta T is in the stable range T0 < delta T < T1 or not is judged, and the judgment result is that T0 < delta T < T1.

S410, when T0 < Δ T < T1, the target evaporation temperature or the target condensation temperature maintains the current value, and then S412 is entered.

S411, determine whether the adjusted target evaporation temperature or target condensation temperature reaches the corresponding maximum temperature or minimum temperature? If yes, the process proceeds to S412, otherwise, the process returns to S404 to continue to operate for T time, and then Δ T is detected, so as to perform cyclic adjustment of the target evaporation temperature or the target condensation temperature.

S412, once the adjusted target evaporation temperature or the target condensation temperature reaches the maximum temperature or the minimum temperature corresponding to each, or is maintained at the current value, whether the target evaporation temperature Tv at the moment is within the given range Tv1 and Tv2 or whether the target condensation temperature Tc at the moment is within the given range Tc1 and Tc2 is judged.

S413, judging whether the target evaporation temperature Tv meets the condition that Tv1 is not less than Tv2 or whether the target condensation temperature Tc meets the condition that Tc1 is not less than Tc2 or not, if so, entering S418, and if not, regarding the target evaporation temperature, two conditions exist: tv > Tv2 or Tv < Tv1, for a target condensing temperature, there are two cases: tc > Tc2 or Tc < Tc 1.

S414, judging whether the target evaporation temperature Tv meets the condition that Tv is not less than Tv1 and not more than Tv2, wherein the judgment result is that Tv is more than Tv 2; alternatively, it is judged whether the target condensation temperature Tc satisfies Tc1 ≦ Tc2, with the result of Tc > Tc 2.

S415, under the refrigeration mode, when Tv is larger than Tv2, increasing delta Va on the basis of the current rotating speed of the hybrid fan; in the heating mode, when Tc is more than Tc2, the rotating speed of the mixing fan is reduced by delta Va on the basis of the current rotating speed; Δ Va > 0. Then, the operation returns to S404, and Δ T is detected after T time to perform the loop control.

S416, judging whether the target evaporation temperature Tv meets the condition that Tv1 is not less than Tv2, wherein the judgment result is that Tv is less than Tv 1; alternatively, it is judged whether the target condensation temperature Tc satisfies Tc1 ≦ Tc2, with the result of Tc < Tc 1.

S417, in the refrigeration mode, when Tv is less than Tv1, the rotating speed of the hybrid fan is reduced by delta Vb on the basis of the current rotating speed; in the heating mode, when Tc is less than Tc1, the rotating speed of the mixing fan is increased by delta Vb on the basis of the current rotating speed; Δ Vb > 0. Then, the operation returns to S404, and Δ T is detected after T time to perform the loop control.

Under the refrigeration mode, the indoor environment temperature is higher than the actual air outlet temperature, and the stable range of the target evaporation temperature Tv is Tv 1-Tv 2.

In the heating mode, the indoor environment temperature is lower than the actual air outlet temperature, and the stable range of the target condensation temperature Tc is Tc 1-Tc 2.

And S418, when the Tv or the Tc is in the corresponding given range, maintaining the current value of the rotating speed of the mixing fan. Then, the operation returns to S404, and Δ T is detected after T time to perform the loop control.

The mixed fan controls the return air quantity entering the mixed air cavity by adjusting the rotating speed, and participates in adjusting the outlet air temperature of the mixed air and the target evaporation temperature (refrigeration mode) or the target condensation temperature (heating mode) controlled by the air conditioning system. The rotation speed of the mixing fan, the wind gear of the indoor heat exchange fan, the target evaporation temperature of the system (in a refrigeration mode) or the target condensation temperature of the system (in a heating mode) are jointly controlled according to the temperature difference between the actual air outlet temperature and the target air outlet temperature, so that the purposes of realizing natural wind feeling and saving energy are achieved.

Example four

Based on the same inventive concept, this embodiment provides an air conditioner air outlet control device, which is applied to the air conditioner described in the embodiment of the present invention and can be used to implement the air conditioner air outlet control method described in the above embodiment. The device may be implemented by software and/or hardware, and the device may be generally integrated into an air conditioner controller.

Fig. 5 is a block diagram of a structure of an air conditioner outlet control device according to a fourth embodiment of the present invention, and as shown in fig. 5, the device includes:

an obtaining module 501, configured to periodically obtain a temperature difference between an actual outlet air temperature and a target outlet air temperature;

a determining module 502, configured to determine a current operation mode of the air conditioner;

and the control module 503 is configured to adjust the rotation speed of the hybrid fan and the specified temperature according to the temperature difference and the current operation mode, where the specified temperature is a target evaporation temperature or a target condensation temperature.

Optionally, the control module 503 includes:

the first control unit is used for adjusting the rotating speed of the mixing fan according to the temperature difference and the current operation mode;

and the second control unit is used for adjusting the specified temperature according to the rotating speed of the mixing fan and the current operation mode.

Optionally, the first control unit includes:

the first judgment subunit is used for judging the interval of the temperature difference;

the first control subunit is used for controlling the hybrid fan to increase a first preset rotating speed on the basis of the current rotating speed if the current operating mode is a cooling mode under the condition that the temperature difference is less than or equal to a first preset temperature, and controlling the hybrid fan to decrease the first preset rotating speed on the basis of the current rotating speed if the current operating mode is a heating mode; under the condition that the temperature difference is greater than or equal to a second preset temperature, if the current operation mode is a refrigeration mode, controlling the hybrid fan to reduce a second preset rotating speed on the basis of the current rotating speed, and if the current operation mode is a heating mode, controlling the hybrid fan to increase the second preset rotating speed on the basis of the current rotating speed; and controlling the mixing fan to maintain the current rotating speed under the condition that the temperature difference is greater than the first preset temperature and less than the second preset temperature.

Optionally, the second control unit includes:

the second judgment subunit is used for judging the interval of the current rotating speed of the hybrid fan;

the second control subunit is used for controlling the target evaporation temperature to be reduced by a third preset temperature if the current operation mode is a refrigeration mode and controlling the target condensation temperature to be increased by the third preset temperature if the current operation mode is a heating mode under the condition that the current rotation speed of the mixing fan is smaller than the first rotation speed limit value; under the condition that the current rotating speed of the mixing fan is greater than the second rotating speed limit value, if the current operation mode is a refrigeration mode, controlling the target evaporation temperature to increase by a fourth preset temperature; if the current operation mode is the heating mode, controlling the target condensation temperature to reduce a fourth preset temperature; and controlling the target evaporation temperature or the target condensation temperature to maintain the current value under the condition that the current rotating speed of the mixing fan is greater than or equal to the first rotating speed limit value and less than or equal to the second rotating speed limit value.

Optionally, the control module 503 further includes: a third control unit, configured to, before adjusting the specified temperature according to the rotational speed of the hybrid fan and the current operation mode, adjust the specified temperature according to the rotational speed of the hybrid fan and the current operation mode if the rotational speed of the hybrid fan after adjustment reaches the maximum rotational speed or the minimum rotational speed of the hybrid fan, or if the hybrid fan maintains the current rotational speed; and if the rotating speed of the adjusted mixing fan does not reach the maximum rotating speed or the minimum rotating speed of the mixing fan, continuously acquiring the temperature difference between the actual air outlet temperature and the target air outlet temperature after running for preset time so as to perform cycle control.

Optionally, the control module 503 includes:

the fourth control unit is used for adjusting the specified temperature according to the temperature difference and the current operation mode;

and the fifth control unit is used for adjusting the rotating speed of the mixing fan according to the specified temperature and the current operation mode.

Optionally, the fourth control unit includes:

the third judging subunit is used for judging the interval of the temperature difference;

the third control subunit is used for controlling the target evaporation temperature to increase by a third preset temperature if the current operation mode is a refrigeration mode and controlling the target condensation temperature to increase by the third preset temperature if the current operation mode is a heating mode under the condition that the temperature difference is less than or equal to the first preset temperature; under the condition that the temperature difference is greater than or equal to a second preset temperature, if the current operation mode is a refrigeration mode, controlling the target evaporation temperature to reduce a fourth preset temperature, and if the current operation mode is a heating mode, controlling the target condensation temperature to reduce the fourth preset temperature; and controlling the target evaporation temperature or the target condensation temperature to maintain the current value under the condition that the temperature difference is greater than the first preset temperature and less than the second preset temperature.

Optionally, the fifth control unit includes:

the fourth judging subunit is used for judging the section of the target evaporation temperature in the refrigeration mode;

the fourth control subunit is used for controlling the hybrid fan to increase a second preset rotating speed on the basis of the current rotating speed if the target evaporation temperature is greater than the upper limit value of the evaporation temperature; if the target evaporation temperature is lower than the lower limit value of the evaporation temperature, controlling to reduce the first preset rotating speed of the mixing fan on the basis of the current rotating speed; and if the target evaporation temperature is greater than or equal to the lower limit value of the evaporation temperature and less than or equal to the upper limit value of the evaporation temperature, controlling the mixing fan to maintain the current rotating speed.

Optionally, the fifth control unit includes:

the fifth judging subunit is used for judging the section of the target condensation temperature in the heating mode;

the fifth control subunit is used for controlling the hybrid fan to reduce the second preset rotating speed on the basis of the current rotating speed if the target condensing temperature is greater than the upper limit value of the condensing temperature; if the target condensation temperature is smaller than the lower limit value of the condensation temperature, controlling to increase a first preset rotating speed of the mixing fan on the basis of the current rotating speed; and if the target condensation temperature is greater than or equal to the lower limit value of the condensation temperature and less than or equal to the upper limit value of the condensation temperature, controlling the mixing fan to maintain the current rotating speed.

Optionally, the control module 503 further includes: a sixth control unit, configured to, before adjusting the rotation speed of the hybrid fan according to the specified temperature and the current operation mode, adjust the rotation speed of the hybrid fan according to the specified temperature and the current operation mode if the adjusted target evaporation temperature reaches the maximum temperature or the minimum temperature of the evaporation temperature, or the adjusted target condensation temperature reaches the maximum temperature or the minimum temperature of the condensation temperature, or the target evaporation temperature or the target condensation temperature maintains the current value; if the adjusted target evaporation temperature does not reach the maximum temperature or the minimum temperature of the evaporation temperature, or the adjusted target condensation temperature does not reach the maximum temperature or the minimum temperature of the condensation temperature, the temperature difference between the actual air outlet temperature and the target air outlet temperature is continuously obtained after the operation is carried out for the preset time, so that the circulation control is carried out.

Optionally, the apparatus further comprises:

the receiving module is used for receiving a natural wind function starting instruction;

the calculation module is used for determining the target air-out temperature, acquiring the current actual air-out temperature and calculating the temperature difference between the current actual air-out temperature and the target air-out temperature;

and the hybrid fan initial rotating speed determining module is used for determining the initial rotating speed of the hybrid fan according to the target air-out temperature and the calculated temperature difference, or determining the initial rotating speed of the hybrid fan according to the current actual air-out temperature and the calculated temperature difference.

Optionally, the apparatus further comprises:

the position acquisition module is used for acquiring indoor human body position information;

the angle determining module is used for determining an air outlet angle according to the indoor human body position information;

the distance calculation module is used for calculating the distance from the air inlet to the human body according to the installation height and the air outlet angle of the air outlet;

and the heat exchange fan rotating speed determining module is used for determining the rotating speed of the heat exchange fan according to the calculated distance.

The device can execute the method provided by the embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiment of the present invention.

EXAMPLE five

The present embodiment provides an electronic device, including: one or more processors; and the memory is used for storing one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors realize the air conditioner outlet air control method according to the above embodiment of the invention.

EXAMPLE six

The present embodiment provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the air conditioner outlet control method according to the above-mentioned embodiments of the present invention.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. An air-conditioning mixing device, characterized in that, comprising:

Return air cavity for introducing return air;

At least one mixing air cavity is disposed adjacent to the return air cavity and can communicate with the return air cavity;

Each mixing air cavity is provided with a mixing fan to provide power, so that part of the return air in the return air cavity enters the mixing air cavity and mixes with the air outlet from the heat exchanger;

The mixing air cavity is provided with an air outlet.

2 . The air mixing device of claim 1 , wherein the mixing fan is arranged in the mixing air cavity at a position close to the return air cavity. 3 .

3 . The air mixing device of claim 1 , wherein the mixing air cavity is provided with a first air outlet for introducing return air from the return air cavity. 4 .

4 . The air mixing device of claim 1 , wherein the mixing air cavity is provided with a second air outlet for introducing air out of the heat exchanger. 5 .

5. The air-conditioning mixing device according to claim 1, further comprising:

The temperature detection module is arranged at the air outlet and used to detect the actual air temperature.

6. An air conditioner, comprising: a controller and the air-conditioning mixing device according to any one of claims 1 to 5, wherein the controller is connected in communication with at least one mixing fan, and is used to control the at least one mixing fan. The speed of a mixing fan.

7. The air conditioner of claim 6, further comprising:

The position detection module is used to detect the indoor human body position.

8. A method for controlling the air outlet of an air conditioner, characterized in that, applied to the air conditioner according to claim 6 or 7, the method comprising:

Periodically obtain the temperature difference between the actual outlet air temperature and the target outlet air temperature;

Determine the current operating mode of the air conditioner;

According to the temperature difference and the current operation mode, the rotational speed of the mixing fan and the specified temperature are adjusted, wherein the specified temperature is a target evaporation temperature or a target condensation temperature.

9 . The method according to claim 8 , wherein, according to the temperature difference and the current operation mode, adjusting the rotational speed of the mixing fan and the specified temperature, comprising: 10 .

adjusting the rotational speed of the mixing fan according to the temperature difference and the current operating mode;

The specified temperature is adjusted according to the rotational speed of the mixing fan and the current operating mode.

10 . The method according to claim 9 , wherein adjusting the rotational speed of the mixing fan according to the temperature difference and the current operating mode, comprising: 10 .

Determine the interval in which the temperature difference is located;

In the case that the temperature difference is less than or equal to the first preset temperature, if the current operation mode is the cooling mode, the mixing fan is controlled to increase the first preset rotation speed on the basis of the current rotation speed. if the mode is the heating mode, the mixing fan is controlled to reduce the first preset rotational speed on the basis of the current rotational speed;

In the case that the temperature difference is greater than or equal to the second preset temperature, if the current operation mode is the cooling mode, the mixing fan is controlled to reduce the second preset rotation speed on the basis of the current rotation speed. If the mode is the heating mode, the mixing fan is controlled to increase the second preset rotational speed on the basis of the current rotational speed;

When the temperature difference is greater than the first preset temperature and less than the second preset temperature, the mixing fan is controlled to maintain the current rotation speed.

11. The method according to claim 9, wherein adjusting the specified temperature according to the rotational speed of the mixing fan and the current operating mode, comprising:

Judging the interval in which the current rotational speed of the mixing fan is located;

In the case where the current speed of the mixing fan is less than the first speed limit, if the current operation mode is the cooling mode, the control target evaporating temperature is decreased by a third preset temperature, and if the current operation mode is the heating mode , the control target condensation temperature is increased by a third preset temperature;

When the current rotation speed of the mixing fan is greater than the second rotation speed limit, if the current operation mode is the cooling mode, the control target evaporation temperature is increased by a fourth preset temperature; if the current operation mode is the heating mode , the control target condensing temperature is reduced by the fourth preset temperature;

When the current rotational speed of the mixing fan is greater than or equal to the first rotational speed limit and less than or equal to the second rotational speed limit, the target evaporating temperature or the target condensing temperature is controlled to maintain the current value.

12 . The method according to claim 9 , wherein before adjusting the specified temperature according to the rotational speed of the mixing fan and the current operating mode, the method further comprises: 12 .

If the adjusted rotating speed of the mixing fan reaches the maximum rotating speed or the minimum rotating speed of the mixing fan, or the mixing fan maintains the current rotating speed, adjusting the specified temperature according to the rotating speed of the mixing fan and the current operating mode;

If the adjusted rotating speed of the mixing fan does not reach the maximum rotating speed or the minimum rotating speed of the mixing fan, continue to obtain the temperature difference between the actual outlet air temperature and the target outlet air temperature after running for a preset time for cyclic control.

13. The method according to claim 8, wherein, according to the temperature difference and the current operating mode, adjusting the rotational speed of the mixing fan and the specified temperature, comprising:

adjusting the specified temperature according to the temperature difference and the current operating mode;

According to the specified temperature and the current operating mode, the rotational speed of the mixing fan is adjusted.

14. The method of claim 13, wherein adjusting the specified temperature according to the temperature difference and the current operating mode comprises:

Determine the interval in which the temperature difference is located;

When the temperature difference is less than or equal to the first preset temperature, if the current operation mode is the cooling mode, the target evaporation temperature is controlled to increase by a third preset temperature, and if the current operation mode is the heating mode , then the target condensation temperature is controlled to increase by a third preset temperature;

When the temperature difference is greater than or equal to the second preset temperature, if the current operating mode is the cooling mode, the target evaporating temperature is controlled to decrease by a fourth preset temperature, and if the current operating mode is the heating mode , the target condensation temperature is controlled to decrease by a fourth preset temperature;

When the temperature difference is greater than the first preset temperature and less than the second preset temperature, the target evaporation temperature or the target condensation temperature is controlled to maintain the current value.

15. The method according to claim 13, wherein adjusting the rotational speed of the mixing fan according to the specified temperature and the current operating mode, comprising:

In the cooling mode, determine the interval in which the target evaporation temperature is located;

If the target evaporation temperature is greater than the upper limit of the evaporation temperature, controlling the mixing fan to increase a second preset rotation speed on the basis of the current rotation speed;

If the target evaporation temperature is less than the lower limit value of the evaporation temperature, controlling the mixing fan to reduce the first preset rotation speed on the basis of the current rotation speed;

If the target evaporation temperature is greater than or equal to the lower limit value of the evaporation temperature and smaller than or equal to the upper limit value of the evaporation temperature, the mixing fan is controlled to maintain the current rotation speed.

16. The method according to claim 13, wherein adjusting the rotational speed of the mixing fan according to the specified temperature and the current operating mode, comprising:

In the heating mode, determine the interval in which the target condensation temperature is located;

If the target condensing temperature is greater than the upper limit of the condensing temperature, controlling the mixing fan to reduce the second preset rotational speed on the basis of the current rotational speed;

If the target condensing temperature is less than the lower limit of the condensing temperature, controlling the mixing fan to increase the first preset rotational speed on the basis of the current rotational speed;

If the target condensation temperature is greater than or equal to the lower limit value of the condensation temperature and less than or equal to the upper limit value of the condensation temperature, the mixing fan is controlled to maintain the current rotation speed.

17. The method according to claim 13, wherein before adjusting the rotational speed of the mixing fan according to the specified temperature and the current operating mode, the method further comprises:

If the adjusted target evaporating temperature reaches the maximum or minimum evaporating temperature, or the adjusted target condensing temperature reaches the maximum or minimum condensing temperature, or the target evaporating temperature or the target condensing temperature maintains the current value, adjusting the rotational speed of the mixing fan according to the specified temperature and the current operating mode;

If the adjusted target evaporating temperature does not reach the maximum or minimum evaporating temperature, or the adjusted target condensing temperature does not reach the maximum or minimum condensing temperature, continue to obtain the actual outlet air temperature and the The temperature difference of the target outlet air temperature for cycle control.

18. The method according to claim 8, wherein before periodically acquiring the temperature difference between the actual outlet air temperature and the target outlet air temperature, the method further comprises:

Receive the command to turn on the natural wind function;

Determine the target outlet air temperature, obtain the current actual outlet air temperature, and calculate the temperature difference between the current actual outlet air temperature and the target outlet air temperature;

Determine the initial rotation speed of the mixing fan according to the target outlet air temperature and the calculated temperature difference, or determine the initial rotation speed of the mixing fan according to the current actual outlet air temperature and the calculated temperature difference.

19. The method according to claim 8, wherein before periodically acquiring the temperature difference between the actual outlet air temperature and the target outlet air temperature, the method further comprises:

Obtain indoor human body position information;

Determine the wind outlet angle according to the indoor human body position information;

Calculate the distance from the air outlet to the human body according to the installation height of the air outlet and the air outlet angle;

Determine the speed of the heat exchange fan according to the calculated distance.

20. An air-conditioning air outlet control device, characterized in that, applied to the air-conditioning according to claim 6 or 7, the device comprising:

The acquisition module is used to periodically acquire the temperature difference between the actual outlet air temperature and the target outlet air temperature;

A determination module for determining the current operating mode of the air conditioner;

The control module is configured to adjust the rotation speed of the mixing fan and the specified temperature according to the temperature difference and the current operation mode, wherein the specified temperature is a target evaporation temperature or a target condensation temperature.

21. A computer-readable storage medium on which a computer program is stored, characterized in that, when the program is executed by a processor, the method according to any one of claims 8 to 19 is implemented.

22. An electronic device comprising: one or more processors; a memory for storing one or more programs, characterized in that when the one or more programs are executed by the one or more processors , causing the one or more processors to implement the method of any one of claims 8 to 19.