Control method of air conditioner and air conditioner

Abstract

The invention discloses an air conditioner control method and an air conditioner, the air conditioner has a fresh air mode, in the fresh air mode, outdoor fresh air and indoor return air flow into the air conditioner, and the control method comprises the steps that S100, it is confirmed that the air conditioner enters the fresh air mode; and S200, indoor air quality parameters are obtained, wherein the indoor air quality parameters comprise one or more of the oil smoke concentration, the PM2.5 value and the TVOC value. And S300, the proportion of outdoor fresh air and indoor return air entering the air conditioner is controlled according to the indoor air quality parameters. According to the control method of the air conditioner, the working process of the air conditioner can be optimized, and on the premise that the indoor air exchange efficiency and the indoor air quality adaptation degree are improved, the indoor temperature change can be reduced, and the energy consumption of the air conditioner is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a control method of an air conditioner and the air conditioner. BACKGROUND

[0002] Currently, there are two mainstream air inlet modes for fresh air kitchen air conditioners. One is to introduce indoor air into the air conditioner through an indoor air return port, which can maintain stable indoor temperature, but the indoor air quality is poor. The other is to introduce outdoor fresh air into the air conditioner through an outdoor fresh air port, which can improve the indoor air quality, but will cause heat exchange between indoor and outdoor, affecting the temperature regulation effect of the air conditioner. Therefore, it is necessary to optimize the fresh air working process of the air conditioner. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a control method of an air conditioner, which can optimize the working process of the air conditioner.

[0004] The present application also proposes an air conditioner applying the above control method of the air conditioner.

[0005] According to the control method of the air conditioner of the first aspect of the present application, the air conditioner has a fresh air mode, in which outdoor fresh air and indoor return air flow into the air conditioner, the control method comprises: S100, confirming that the air conditioner enters the fresh air mode; S200, obtaining indoor air quality parameters, the indoor air quality parameters comprising one or more of PM1.0 value, PM2.5 value, ozone concentration, sulfur dioxide concentration, carbon monoxide concentration and nitrogen dioxide concentration; S300, controlling the proportion of outdoor fresh air and indoor return air entering the air conditioner according to the indoor air quality parameters.

[0006] According to the control method of the air conditioner of the first aspect of the present application, the working process of the air conditioner can be optimized, the temperature change in the room can be reduced and the energy consumption of the air conditioner can be reduced on the premise of improving indoor air exchange efficiency and indoor air quality adaptation.

[0007] According to some embodiments of the present application, the step S300 comprises: S310, obtaining a preset interval corresponding to the indoor air quality parameters; S320, obtaining a preset proportion corresponding to the preset interval according to the preset interval corresponding to the indoor air quality parameters; S330, adjusting the proportion of outdoor fresh air and indoor return air to the preset proportion.

[0008] According to some embodiments of the present application, the indoor air quality parameters further comprise one or more of oxygen concentration, carbon dioxide concentration, TVOC value, ammonia concentration or smoke concentration.

[0009] According to some embodiments of the present application, before the step S100, the method further comprises: S10, obtaining local weather information; S20, determining whether the air conditioner enters the fresh air mode according to the weather information.

[0010] According to some embodiments of the present application, in the step S20, when the weather information is sandstorm weather, haze weather or serious pollution weather, the air conditioner does not enter the fresh air mode, and the display panel displays that the outdoor air quality is poor.

[0011] According to some embodiments of the present application, before the step S100, the method further comprises: S1, obtaining an outdoor air quality parameter; S2, determining whether the air conditioner enters the fresh air mode according to the outdoor air quality parameter.

[0012] According to some embodiments of the present application, before the step S100, the method further comprises: S01, determining that the air conditioner enters a cooling mode or a heating mode; S02, determining that the indoor temperature reaches a set temperature of the air conditioner.

[0013] According to the air conditioner of the second aspect of the present application, the air conditioner comprises: an air conditioner body; an air inlet pipe and a mixing device, one end of the air inlet pipe is connected with the air conditioner body, and the other end of the air inlet pipe is connected with the mixing device; an air return pipe and a fresh air pipe, the air return pipe is arranged in a room and one end of the air return pipe is connected with the mixing device, one end of the fresh air pipe is connected with the mixing device, and the other end of the fresh air pipe is connected with an outdoor space; a controller, the controller is electrically connected with the mixing device, and the controller controls the mixing device to adjust the proportion of outdoor fresh air and indoor return air entering the air conditioner according to an indoor air quality parameter, the indoor air quality parameter comprises one or more of a PM1.0 value, a PM2.5 value, an ozone concentration, a sulfur dioxide concentration, a carbon monoxide concentration and a nitrogen dioxide concentration.

[0014] According to the air conditioner of the second aspect of the present application, the controller controls the mixing device to adjust the proportion of outdoor fresh air and indoor return air entering the air conditioner according to the indoor air quality parameter, which can improve the indoor air exchange efficiency and the indoor air quality adaptation degree, and reduce the temperature change in the room.

[0015] According to some embodiments of the present application, the mixing device comprises: a shell, the shell defines a mixing cavity in the shell, the shell is formed with an air inlet, a fresh air inlet and an air return inlet which are in communication with the mixing cavity, the air inlet pipe, the fresh air pipe and the air return pipe are connected with the shell, and the air inlet pipe is in communication with the air inlet, the fresh air pipe is in communication with the fresh air inlet, and the air return pipe is in communication with the air return inlet; a driving member and an adjusting member, the driving member and the adjusting member are arranged in the mixing cavity, and the driving member drives the adjusting member to move to adjust the opening degree of the fresh air inlet and the air return inlet.

[0016] According to some embodiments of the present application, the driving member is a driving motor, at least part of the inner wall of the mixing chamber is a circular arc cylindrical surface, the fresh air outlet and the return air outlet both penetrate the circular arc cylindrical surface, the adjusting member comprises an adjusting plate and a connecting column, the adjusting plate is a circular arc cylindrical plate, the circular arc cylindrical plate is adapted to the circular arc cylindrical surface, a through hole is formed on the adjusting plate, the connecting column is connected between the output shaft of the driving motor and the circular arc cylindrical plate, the driving motor drives the adjusting plate to rotate along the circular arc cylindrical surface, so as to adjust the relative area of the through hole and the fresh air outlet and the return air outlet.

[0017] According to some embodiments of the present application, the driving member is a driving motor, at least part of the inner wall of the mixing chamber is a circular arc cylindrical surface, the fresh air outlet and the return air outlet both penetrate the circular arc cylindrical surface, the adjusting member has a matching surface adapted to the circular arc cylindrical surface, the adjusting member is connected with the output shaft of the driving motor, the driving motor drives the adjusting member to rotate and makes the matching surface rotate along the circular arc cylindrical surface, so as to adjust the shielding degree of the adjusting member to the fresh air outlet and the return air outlet.

[0018] According to some embodiments of the present application, a one-way valve for one-way flow towards the mixing device is arranged in the return air pipe and the fresh air pipe.

[0019] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a flow chart of the control method of the air conditioner according to an embodiment of the present application;

[0021] Figure 2 is Figure 1 is a flow chart of step S300 shown in

[0022] Figure 3 is a flow chart of the control method of the air conditioner according to another embodiment of the present application;

[0023] Figure 4 is a flow chart of the control method of the air conditioner according to still another embodiment of the present application;

[0024] Figure 5 is a flow chart of the control method of the air conditioner according to yet another embodiment of the present application;

[0025] Figure 6 is a schematic view of the air conditioner according to an embodiment of the present application;

[0026] Figure 7is an exploded view of a mixing device according to an embodiment of the present application;

[0027] Figure 8 is an exploded view of a mixing device according to another embodiment of the present application.

[0028] Reference Signs:

[0029] 100, air conditioner;

[0030] 10, air conditioner body;

[0031] 20, air inlet pipe; 21, air outlet pipe;

[0032] 30, mixing device; 31, housing; 311, mixing cavity; 312, air inlet; 313, fresh air inlet; 314, return air inlet; 315, housing body; 316, cover plate; 32, driving member; 33, adjusting member; 331, adjusting plate; 3311, through hole; 332, connecting column;

[0033] 40, return air pipe;

[0034] 50, fresh air pipe. DETAILED DESCRIPTION

[0035] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which like reference numerals refer to like elements or elements having the same function throughout the description of the drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.

[0036] The control method of the air conditioner 100 according to the first aspect of the present application is described below with reference to Figures 1-8

[0037] As shown in Figure 1 the control method of the air conditioner 100 according to the first aspect of the present application, the air conditioner 100 has a fresh air mode, in which both outdoor fresh air and indoor return air flow into the air conditioner 100, and the control method comprises:

[0038] S100, confirming that the air conditioner 100 enters the fresh air mode.

[0039] ​The air conditioner 100 is used in the kitchen, the outdoor fresh air is fresh air flowing from the outdoor to the indoor, the indoor return air is air in the indoor during the working process of the air conditioner 100, in the fresh air mode, the air conditioner 100 exchanges heat with the mixed indoor return air and outdoor fresh air entering, and then blows into the indoor environment through the air outlet pipe 21, so that the indoor and outdoor air can be exchanged while adjusting the indoor temperature, and compared with the outdoor fresh air and the heat exchange air blowing into the indoor alone, the mixed air after heat exchange can make the indoor temperature distribution more uniform.

[0040] S200, acquire indoor air quality parameters, the indoor air quality parameters include one or more of PM1.0 value, PM2.5 value, ozone concentration, sulfur dioxide concentration, carbon monoxide concentration and nitrogen dioxide concentration.

[0041] That is, the indoor air quality parameters can include one of PM1.0 value, PM2.5 value, ozone concentration, sulfur dioxide concentration, carbon monoxide concentration and nitrogen dioxide concentration, the indoor air quality parameters can also include part of PM1.0 value, PM2.5 value, ozone concentration, sulfur dioxide concentration, carbon monoxide concentration and nitrogen dioxide concentration, and the indoor air quality parameters can also include PM1.0 value, PM2.5 value, ozone concentration, sulfur dioxide concentration, carbon monoxide concentration and nitrogen dioxide concentration.

[0042] The PM1.0 value, PM2.5 value, ozone concentration, sulfur dioxide concentration, carbon monoxide concentration and nitrogen dioxide concentration are obtained by sensor detection, and for those skilled in the art, it can be understood that the above parameters have high correlation with indoor air quality, and the indoor environment is in a relatively closed state during the operation of the air conditioner 100, in the kitchen, with the combustion of fuel and the heating of food, ozone, sulfur dioxide, carbon monoxide or nitrogen dioxide may be produced, and particulate matter may also be produced, so that the above parameters change.

[0043] S300, according to the indoor air quality parameters, control the proportion of the outdoor fresh air and the indoor return air entering the air conditioner 100.

[0044] For those skilled in the art, it can be understood that the temperature of the outdoor fresh air is greatly different from the temperature of the indoor environment, and the air quality of the indoor return air is poor, when the air entering the air conditioner 100 is all outdoor fresh air, the heat exchange between the indoor environment and the outdoor environment will be increased, the adjustment effect of the air conditioner 100 on the indoor environment temperature will be affected, and the energy consumption of the air conditioner 100 will be increased, when the air entering the air conditioner 100 is all indoor return air, the indoor air quality is poor, which will affect the health of the indoor personnel.

[0045] In this embodiment, the proportion of outdoor fresh air and indoor return air entering the air conditioner 100 is controlled according to the indoor air quality parameter, wherein the proportion of the outdoor fresh air needs to make the indoor air exchange efficiency meet the air exchange needs of the indoor environment, so that when the air conditioner 100 exchanges air, the fresh air pipe 50 will not be at the maximum opening at all times, thereby reducing the temperature change in the indoor environment during air exchange and optimizing the working process of the air conditioner 100.

[0046] The control method of the air conditioner 100 according to the first aspect of the present application can optimize the working process of the air conditioner 100, reduce the temperature change in the indoor environment, and reduce the energy consumption of the air conditioner 100 on the premise of improving the indoor air exchange efficiency and the indoor air quality adaptation degree.

[0047] In some embodiments of the present application, as shown in Figure 2 The step S300 includes:

[0048] S310, obtaining a preset interval corresponding to the indoor air quality parameter;

[0049] S320, obtaining a preset proportion corresponding to the preset interval according to the indoor air quality parameter;

[0050] S330, adjusting the proportion of outdoor fresh air and indoor return air to the preset proportion.

[0051] The preset interval is multiple, and one preset interval corresponds to one preset proportion. It can be understood that the efficiency requirement for indoor air exchange is different when the indoor air quality parameter in the indoor environment is different. By setting multiple preset intervals and making the preset interval correspond to a preset proportion, the proportion of outdoor fresh air and indoor return air can be quickly matched according to the interval of the indoor air quality parameter during the working process of the air conditioner 100, thereby further optimizing the working process of the air conditioner 100.

[0052] Preferably, the pollution value of the indoor air quality parameter can be calculated by referring to the provisions of the national “Ambient Air Quality Standard” (GB3095-2012) for pollutant values, and the preset interval is divided by the pollution value. For example, the indoor air quality parameter interval corresponding to the national “Ambient Air Quality Standard” (GB3095-2012) classified as good is set as the initial interval. It can be understood that when the air conditioner 100 enters the fresh air mode, the outdoor fresh air and indoor return air entering the air conditioner 100 will have an initial proportion. When the indoor air quality parameter falls within the initial interval, the proportion of outdoor fresh air and indoor return air is adjusted to the preset proportion corresponding to the initial interval. When the indoor air quality parameter is less than the lower limit of the initial interval, the air conditioner 100 maintains the initial proportion of outdoor fresh air and indoor return air.

[0053] The interval of the indoor air quality parameter classified as severe in the national Ambient Air Quality Standard (GB3095-2012) is set as the maximum interval of the outdoor fresh air ratio of 100%, and a plurality of preset intervals can be set between the initial interval and the maximum interval, for example, ten preset intervals are equally divided between the initial interval and the maximum interval. Among them, the plurality of preset intervals between the initial interval and the maximum interval can be equally divided, and the plurality of preset intervals between the initial interval and the maximum interval can also be unequally divided, and the preset ratio of the outdoor fresh air and the indoor return air corresponding to the preset interval can be adjusted equally, and the preset ratio of the outdoor fresh air and the indoor return air corresponding to the preset interval can also be adjusted unequally.

[0054] In the process of product design, the number of preset intervals, the numerical range of each preset interval or the numerical value of the preset ratio can be adjusted to meet more product design needs.

[0055] In some embodiments of the present application, the indoor air quality parameter further comprises one or more of oxygen concentration, carbon dioxide concentration, TVOC value, ammonia concentration or smoke concentration.

[0056] That is, the indoor air quality parameter can further include one of oxygen concentration, carbon dioxide concentration, TVOC value, ammonia concentration or smoke concentration, the indoor air quality parameter can further include several of oxygen concentration, carbon dioxide concentration, TVOC value, ammonia concentration or smoke concentration, and the indoor air quality parameter can further include all of oxygen concentration, carbon dioxide concentration, TVOC value, ammonia concentration or smoke concentration.

[0057] In the kitchen, fuel combustion and food heating can change the oxygen concentration, carbon dioxide concentration, TVOC value, ammonia concentration and smoke concentration, and when the above parameter values deviate greatly from the normal values, it will affect the health of the personnel in the kitchen. By adjusting the ratio of outdoor fresh air and indoor return air entering the air conditioner 100 according to the values of oxygen concentration, carbon dioxide concentration, TVOC value, ammonia concentration or smoke concentration, the working process of the air conditioner 100 can be further optimized, and the indoor air exchange efficiency and the indoor air quality adaptation degree can be improved.

[0058] Preferably, the pollution values of the above indoor air quality parameters can also be calculated by referring to the provisions of the national Ambient Air Quality Standard (GB3095-2012) for pollutant values, and the preset intervals of the above air quality parameters are divided by the pollution values.

[0059] In some embodiments of the present application, as shown in Figure 3 Before step S100, it further includes:

[0060] S10, obtaining local weather information;

[0061] S20, confirming whether the air conditioner 100 enters the fresh air mode according to the weather information.

[0062] The air conditioner 100 can be connected to a network and obtain local weather information through the network. It can be understood that when the user is in the kitchen, the user may not be able to know the outdoor weather in time. When the weather is poor, the air conditioner 100 may make the indoor air quality worse. The air conditioner 100 confirms whether the air conditioner 100 enters the fresh air mode according to the weather information, which can reduce the probability of the air conditioner 100 blowing poor outdoor air into the room, thereby improving the user's experience.

[0063] In some embodiments of the present application, as shown in Figure 3 In step S20, when the weather information is a sandstorm weather, a haze weather or a serious pollution weather, the air conditioner 100 does not enter the fresh air mode, and displays that the outdoor air quality is poor on the display panel.

[0064] It can be understood that in the sandstorm weather, the haze weather or the serious pollution weather, the outdoor air quality is poor. At this time, the air conditioner 100 performs air exchange, which can make the indoor air quality further deteriorate. The air conditioner 100 does not enter the fresh air mode in the above-mentioned weather, which can improve the user's experience, and displays that the outdoor air quality is poor on the display panel, which can make the user know the outdoor air state in time.

[0065] In some embodiments of the present application, as shown in Figure 4 Before step S100, it further includes:

[0066] S1, obtaining an outdoor air quality parameter;

[0067] S2, confirming whether the air conditioner 100 enters the fresh air mode according to the outdoor environment air quality parameter.

[0068] The outdoor air quality parameter is obtained by a sensor. When it is detected that the outdoor air quality is poor, the air conditioner 100 enters the fresh air mode to exchange air in the room, which can make the indoor air quality become worse. The air conditioner 100 does not enter the fresh air mode when the outdoor air quality is poor, which can improve the user's experience. At the same time, the air conditioner 100 can display that the outdoor air quality is poor on the display panel, thereby further improving the user's experience.

[0069] Preferably, the outdoor quality parameter can include one or more of a PM1.0 value, a PM2.5 value, an ozone concentration, a sulfur dioxide concentration, a carbon monoxide concentration, and a nitrogen dioxide concentration. That is, the outdoor quality parameter can include one of a PM1.0 value, a PM2.5 value, an ozone concentration, a sulfur dioxide concentration, a carbon monoxide concentration, and a nitrogen dioxide concentration, the outdoor quality parameter can include several of a PM1.0 value, a PM2.5 value, an ozone concentration, a sulfur dioxide concentration, a carbon monoxide concentration, and a nitrogen dioxide concentration, and the outdoor quality parameter can include all of a PM1.0 value, a PM2.5 value, an ozone concentration, a sulfur dioxide concentration, a carbon monoxide concentration, and a nitrogen dioxide concentration.

[0070] For the outdoor quality parameter, a threshold of the outdoor quality parameter when the air conditioner 100 does not enter the fresh air mode can be determined according to a provision of a pollutant value in the National Ambient Air Quality Standard (GB3095-2012), for example, the air conditioner 100 can not enter the fresh air mode when the outdoor quality parameter reaches a standard of light pollution in the National Ambient Air Quality Standard (GB3095-2012).

[0071] In some embodiments of the present application, as shown in FIG. 1, before step S100, the method further includes: Figure 5

[0072] S01, confirming that the air conditioner 100 enters a cooling mode or a heating mode;

[0073] S02, confirming that the indoor temperature reaches a set temperature of the air conditioner 100.

[0074] When the indoor temperature makes the user uncomfortable, the user needs to turn on the air conditioner 100 to adjust the indoor temperature, for example, when the indoor temperature is high, the user selects the cooling mode to cool the indoor, and when the indoor temperature is low, the user selects the heating mode to heat the indoor. When the indoor temperature reaches the set temperature of the air conditioner 100, the indoor temperature can meet the user's demand to a certain extent, at this time, the air conditioner 100 enters the fresh air mode, and the difference between the indoor temperature after the change and the set temperature is still small, so that the discomfort of the user caused by the temperature change in the air exchange process can be reduced.

[0075] The air conditioner 100 according to the second aspect of the present application will be described below with reference to Figures 1-8 FIG. 2.

[0076] The air conditioner 100 according to the second aspect of the present application, as shown in FIG. 2, includes an air conditioner body 10, an air inlet pipe 20, an air mixing device 30, an air return pipe 40, a fresh air pipe 50, and a controller. Figure 6

[0077] ​​Specifically, one end of the air inlet pipe 20 is connected to the air conditioner body 10, the other end of the air inlet pipe 20 is connected to the air mixing device 30, the air return pipe 40 is arranged in the room and one end of the air return pipe 40 is connected to the air mixing device 30, one end of the fresh air pipe 50 is connected to the air mixing device 30, the other end of the fresh air pipe 50 is connected to the outdoor space, the controller is electrically connected to the air mixing device 30, the controller controls the air mixing device 30 to adjust the proportion of the outdoor fresh air and the indoor return air entering the air conditioner 100 according to the indoor air quality parameter, and the indoor air quality parameter includes one or more of the PM1.0 value, the PM2.5 value, the ozone concentration, the sulfur dioxide concentration, the carbon monoxide concentration and the nitrogen dioxide concentration.

[0078] That is, the air conditioner 100 applies the control method of the air conditioner 100 according to the first aspect of the present application. The indoor air quality parameter can include one of the PM1.0 value, the PM2.5 value, the ozone concentration, the sulfur dioxide concentration, the carbon monoxide concentration and the nitrogen dioxide concentration, or the indoor air quality parameter can include part of the PM1.0 value, the PM2.5 value, the ozone concentration, the sulfur dioxide concentration, the carbon monoxide concentration and the nitrogen dioxide concentration, or the indoor air quality parameter can include the PM1.0 value, the PM2.5 value, the ozone concentration, the sulfur dioxide concentration, the carbon monoxide concentration and the nitrogen dioxide concentration.

[0079] During the operation of the air conditioner 100 in the fresh air mode, the outdoor fresh air enters the air mixing device 30 from the air inlet pipe 20, the indoor return air enters the air mixing device 30 through the air return pipe 40, the outdoor fresh air and the indoor return air enter the air inlet pipe from the air mixing device 30, and then enter the air conditioner body 10 from the air inlet pipe, so that the outdoor fresh air and the indoor return air mixed enter the air conditioner 100. The air conditioner 100 exchanges heat with the mixed air entering the air conditioner 100, and then blows the mixed air into the room from the air outlet pipe 21.

[0080] According to the air conditioner 100 of the second aspect of the present application, the controller controls the air mixing device 30 to adjust the proportion of the outdoor fresh air and the indoor return air entering the air conditioner 100 according to the indoor air quality parameter, which can improve the indoor air exchange efficiency and the indoor air quality adaptation degree, and at the same time, reduce the temperature change in the room.

[0081] In some embodiments of the present application, as shown in Figure 7 and Figure 8 The air mixing device 30 includes a housing 31, a driving member 32 and an adjusting member 33.

[0082] Specifically, the shell 31 defines a mixing chamber 311 therein, the shell 31 is formed with an air inlet 312, a fresh air inlet 313 and a return air inlet 314 in communication with the mixing chamber 311, the air inlet pipe 20, the fresh air inlet pipe 50 and the return air inlet pipe 40 are connected with the shell 31, and the air inlet pipe 20 is in communication with the air inlet 312, the fresh air inlet pipe 50 is in communication with the fresh air inlet 313, and the return air inlet pipe 40 is in communication with the return air inlet 314, the driving member 32 and the adjusting member 33 are arranged in the mixing chamber 311, and the driving member 32 drives the adjusting member 33 to move to adjust the opening degree of the fresh air inlet 313 and the return air inlet 314.

[0083] The shell 31 includes a shell body 315 and a cover plate 316, the shell body 315 defines the mixing chamber 311 with an open end, and the cover plate 316 covers the open end of the mixing chamber 311, and the air inlet 312, the fresh air inlet 313 and the return air inlet 314 are formed on the shell body 315.

[0084] During the operation of the mixing device 30, outdoor fresh air enters the fresh air inlet pipe 50, enters the mixing chamber 311 through the fresh air inlet 313, indoor return air enters the return air inlet pipe 40, enters the mixing chamber 311 through the return air inlet 314, and then the outdoor fresh air and the indoor return air enter the air inlet pipe 20 from the mixing chamber 311, enter the air conditioner body 10 through the air inlet pipe 20, thereby realizing that the outdoor fresh air and the indoor fresh air are mixed and then enter the air conditioner 100. The driving member 32 drives the adjusting member 33 to move to adjust the opening degree of the fresh air inlet 313 and the return air inlet 314, the amount of outdoor fresh air and the amount of indoor return air entering the mixing chamber 311 can be adjusted, thereby realizing the adjustment of the proportion of outdoor fresh air and indoor fresh air.

[0085] In some embodiments of the present application, as shown in Figure 7 The driving member 32 is a driving motor, at least part of the inner wall of the mixing chamber 311 is a circular arc column surface, the fresh air inlet 313 and the return air inlet 314 both penetrate the circular arc column surface, the adjusting member 33 includes an adjusting plate 331 and a connecting column 332, the adjusting plate 331 is a circular arc column plate, the circular arc column plate is matched with the circular arc column surface, the adjusting plate 331 is formed with a through hole 3311, the connecting column 332 is connected between the output shaft of the driving motor and the circular arc column plate, and the driving motor drives the adjusting plate 331 to rotate along the circular arc column surface to adjust the relative area of the through hole 3311 and the fresh air inlet 313 and the return air inlet 314.

[0086] In the process that the indoor return air enters the mixed air chamber 311, the indoor return air enters the mixed air chamber 311 through the return air port 314 and the through hole 3311 in sequence, and by adjusting the relative areas of the through hole 3311 and the return air port 314, the shielding proportion of the adjusting plate 331 to the return air port 314 can be adjusted, so that the opening degree of the return air port 314 is adjusted. Similarly, in the process that the outdoor fresh air enters the mixed air chamber 311, the outdoor fresh air enters the mixed air chamber 311 through the fresh air port 313 and the through hole 3311 in sequence, and by adjusting the relative areas of the through hole 3311 and the fresh air port 313, the shielding proportion of the adjusting plate 331 to the fresh air port 313 can be adjusted, so that the opening degree of the fresh air port 313 is adjusted. Thus, the mixed air device 30 can realize the adjustment of the proportion of the indoor return air and the outdoor fresh air.

[0087] In the process that the indoor return air enters the mixed air chamber 311, the indoor return air enters the mixed air chamber 311 through the return air port 314 and the through hole 3311 in sequence, and by adjusting the relative areas of the through hole 3311 and the return air port 314, the shielding proportion of the adjusting plate 331 to the return air port 314 can be adjusted, so that the opening degree of the return air port 314 is adjusted. Similarly, in the process that the outdoor fresh air enters the mixed air chamber 311, the outdoor fresh air enters the mixed air chamber 311 through the fresh air port 313 and the through hole 3311 in sequence, and by adjusting the relative areas of the through hole 3311 and the fresh air port 313, the shielding proportion of the adjusting plate 331 to the fresh air port 313 can be adjusted, so that the opening degree of the fresh air port 313 is adjusted. Thus, the mixed air device 30 can realize the adjustment of the proportion of the indoor return air and the outdoor fresh air.

[0088] In some embodiments of the present application, as shown in Figure 8 the driving member 32 is a driving motor, at least part of the inner wall of the mixed air chamber 311 is a circular arc column surface, the fresh air port 313 and the return air port 314 both penetrate the circular arc column surface, the adjusting member 33 has a matching surface matched with the circular arc column surface, the adjusting member 33 is connected with the output shaft of the driving motor, the driving motor drives the adjusting member 33 to rotate and makes the matching surface rotate along the circular arc column surface, so as to adjust the shielding degree of the adjusting member 33 to the fresh air port 313 and the return air port 314.

[0089] Thus, the mixed air device 30 can realize the adjustment of the proportion of the indoor return air and the outdoor fresh air, and the working process of the mixed air device 30 is relatively simple, which can reduce the product design difficulty.

[0090] In some embodiments of the present application, the return air pipe 40 and the fresh air pipe 50 are both provided with one-way valves for unidirectional flow to the mixed air device 30. In this way, the airflow in the mixed air chamber 311 can be prevented from flowing back to the return air pipe 40 and the fresh air pipe 50.

[0091] In some embodiments of the present application, a filter screen is arranged in the air inlet pipe 20, so that the filter screen can filter the air entering the air inlet pipe 20, thereby improving the cleanliness of the air entering the air conditioner 100.

[0092] In some embodiments of the present application, a filter screen is arranged in the fresh air pipe 50, so that the filter screen can filter the air entering the fresh air pipe 50, thereby improving the cleanliness of the air entering the air conditioner 100.

[0093] In some embodiments of the present application, a grid is arranged in the air inlet pipe 20, so that the mouse or outdoor foreign matter can be prevented from entering the air conditioner 100, thereby improving the reliability of the air conditioner 100 during operation.

[0094] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0095] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can include one or more of the features explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0096] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection, or communication; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0097] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0098] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and application of the present application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A control method of an air conditioner having a fresh air mode in which both outdoor fresh air and indoor return air flow into the air conditioner, characterized by, The control method comprises: S100, confirming that the air conditioner enters the fresh air mode; S200, acquiring indoor air quality parameters, the indoor air quality parameters comprising one or more of PM1.0 value, PM2.5 value, ozone concentration, sulfur dioxide concentration, carbon monoxide concentration and nitrogen dioxide concentration; S300, controlling the proportion of outdoor fresh air and indoor return air entering the air conditioner according to the indoor air quality parameters.

2. The control method of the air conditioner according to claim 1, characterized by, The step S300 comprises: S310, acquiring a preset interval corresponding to the indoor air quality parameters; S320, acquiring a preset proportion corresponding to the preset interval according to the preset interval corresponding to the indoor air quality parameters; S330, adjusting the proportion of outdoor fresh air and indoor return air to the preset proportion.

3. The control method of the air conditioner according to claim 1, wherein The indoor air quality parameters further comprise one or more of oxygen concentration, carbon dioxide concentration, TVOC value, ammonia concentration or smoke concentration.

4. The control method of the air conditioner according to claim 1, characterized by, Before the step S100, the method further comprises: S10, acquiring local weather information; S20, confirming whether the air conditioner enters the fresh air mode according to the weather information.

5. The control method of the air conditioner according to claim 4, characterized by, In the step S20, when the weather information is sandstorm weather, haze weather or serious pollution weather, the air conditioner does not enter the fresh air mode, and displays that the outdoor air quality is poor on a display panel.

6. The control method of the air conditioner according to claim 1, wherein Before the step S100, the method further comprises: S1, acquiring outdoor air quality parameters; S2, confirming whether the air conditioner enters the fresh air mode according to the outdoor environment air quality parameters.

7. The control method of the air conditioner according to claim 1, wherein Before the step S100, the method further comprises: S01, confirming that the air conditioner enters a cooling mode or a heating mode; S02, confirming that the indoor temperature reaches a set temperature of the air conditioner.

8. An air conditioner characterized by comprising: The air conditioner comprises: an air conditioner body; an air inlet pipe and a mixing device, one end of the air inlet pipe being connected with the air conditioner body, and the other end of the air inlet pipe being connected with the mixing device; an air return pipe and a fresh air pipe, the air return pipe being arranged in an indoor space and having one end connected with the mixing device, and the fresh air pipe having one end connected with the mixing device and the other end connected with an outdoor space, a controller, the controller being electrically connected with the mixing device, and the controller controlling the mixing device to adjust the proportion of outdoor fresh air and indoor return air entering the air conditioner according to indoor air quality parameters, the indoor air quality parameters comprising one or more of PM1.0 value, PM2.5 value, ozone concentration, sulfur dioxide concentration, carbon monoxide concentration and nitrogen dioxide concentration.

9. The air conditioner of claim 8, wherein The mixing device comprises: a housing, the housing defining a mixing cavity therein, the housing being formed with an air inlet, a fresh air inlet and an air return inlet in communication with the mixing cavity, the air inlet pipe, the fresh air pipe and the air return pipe being connected with the housing, and the air inlet pipe being in communication with the air inlet, the fresh air pipe being in communication with the fresh air inlet, and the air return pipe being in communication with the air return inlet; a driving member and an adjusting member, the driving member and the adjusting member being arranged in the mixing cavity, the driving member driving the adjusting member to move to adjust the opening degree of the fresh air inlet and the air return inlet.

10. The air conditioner of claim 9, wherein The driving member is a driving motor, at least part of the inner wall of the mixed air chamber is a circular arc cylindrical surface, the fresh air outlet and the return air outlet both penetrate the circular arc cylindrical surface, The adjusting member comprises an adjusting plate and a connecting column, the adjusting plate is a circular arc cylindrical plate, the circular arc cylindrical plate is matched with the circular arc cylindrical surface, a through hole is formed on the adjusting plate, the connecting column is connected between the output shaft of the driving motor and the circular arc cylindrical plate, the driving motor drives the adjusting plate to rotate along the circular arc cylindrical surface, so as to adjust the relative area of the through hole and the fresh air outlet and the return air outlet.

11. The air conditioner of claim 9, wherein The driving member is a driving motor, at least part of the inner wall of the mixed air chamber is a circular arc cylindrical surface, the fresh air outlet and the return air outlet both penetrate the circular arc cylindrical surface, The adjusting member has a matched surface matched with the circular arc cylindrical surface, the adjusting member is connected with the output shaft of the driving motor, the driving motor drives the adjusting member to rotate and makes the matched surface rotate along the circular arc cylindrical surface, so as to adjust the shielding degree of the adjusting member to the fresh air outlet and the return air outlet.

12. The air conditioner of claim 8, wherein The return air pipe and the fresh air pipe are both provided with one-way valves for one-way flow of the mixed air device.

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