Air conditioner and control method

Abstract

The invention provides an air conditioner and a control method, the air conditioner comprises an indoor unit and an outdoor unit, the indoor unit is provided with a fresh air device, an inlet of the fresh air device is connected with the outdoor unit through a fresh air pipe, and the outdoor unit is provided with an oxygen generation device; an air suction port of the oxygen generation device is communicated with an air inlet cavity of the fresh air device through an oxygen generation pipe, the oxygen generation pipe is arranged in the fresh air pipe in a sleeved mode, and a gap is formed between the oxygen generation pipe and the fresh air pipe. According to the air conditioner, the technical problem that in the prior art, an oxygen generation device of an air conditioner needs an independent air suction pipe to input filtered air into the oxygen generation device, and installation is complex can be solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner and a control method. Background Art

[0002] The air conditioner is used as a room temperature regulator. However, after the air conditioner has been running for a long time in a confined space, the oxygen content in the indoor air has decreased, making people drowsy and unable to cheer up. At present, the fresh air ventilation device is mainly used to input outdoor high-quality air into the room or the oxygen generator is used to produce and output oxygen into the room to improve the oxygen content of the indoor air. However, the fresh air function of the current air conditioner has limited contribution to improving the oxygen content of the room. The oxygen generator needs to be installed outdoors due to noise and other problems. The oxygen generator needs to be placed at the air inlet to prevent dust from entering the oxygen generator and damaging the device. Since the filter is a consumable and needs to be replaced frequently, the filter is usually set indoors for convenience, that is, the outdoor air is first passed through the indoor filter through the pipeline and then returned to the outdoor oxygen generator. The oxygen-rich air after oxygen production will be transported to the room through the pipeline. In this way, three pipelines are required to complete this process, and the installation is complicated and very troublesome. At the same time, the oxygen inhalation path is very long, which greatly reduces the oxygen production efficiency of the oxygen generator and increases energy consumption.

[0003] Since the oxygen production device of the air conditioner in the prior art requires a separate intake pipe to input the filtered air into the oxygen production device, there are technical problems such as complex installation and low oxygen production efficiency. Therefore, the present invention studies and designs an air conditioner and a control method. Summary of the invention

[0004] Therefore, the present invention provides an air conditioner and a control method, which can solve the technical problem that the oxygen generator of the air conditioner in the prior art requires a separate air intake pipe to input filtered air into the oxygen generator, which causes complex installation.

[0005] In order to solve the above problems, the present invention provides an air conditioner, comprising: an indoor unit and an outdoor unit, the indoor unit is equipped with a fresh air device, the inlet of the fresh air device is connected to the outdoor unit through a fresh air pipe, the outdoor unit is equipped with an oxygen generator, the air intake of the oxygen generator is connected to the air inlet chamber of the fresh air device through an oxygen generator pipe, the oxygen generator pipe is sleeved in the fresh air pipe, and there is a gap between the oxygen generator pipe and the fresh air pipe.

[0006] In some embodiments, the inner diameter of the fresh air pipe is D, and the outer diameter of the oxygen production pipe is D1, which satisfies D / D1≥2.

[0007] In some embodiments, a filter is provided in the air inlet chamber, and the airflow input from the fresh air duct flows through the filter and then flows into the oxygen production pipe.

[0008] In some embodiments, along the flow direction of the airflow in the fresh air duct, the inlet of the oxygen production pipe is located downstream of the filter screen.

[0009] In some embodiments, the oxygen production pipe is coaxially arranged with the fresh air pipe, and the airflow direction of the oxygen production pipe is opposite to the airflow direction of the fresh air pipe.

[0010] In some embodiments, an oxygen production air intake channel is provided in the air inlet chamber, and the oxygen production air intake channel is connected to the inlet of the oxygen production pipe.

[0011] In some embodiments, the oxygen production device has an oxygen supply port, and the fresh air pipe is connected to the oxygen supply port.

[0012] The present invention also provides a control method for the above-mentioned air conditioner, when the set condition is reached, the operating speed of the oxygen production device is controlled to be lower than the operating speed of the fresh air device.

[0013] In some embodiments, the set conditions include outdoor air PM2.5 being greater than a set value, or indoor oxygen concentration being less than a set oxygen concentration.

[0014] In some embodiments, when the set condition is not met, the operating speed of the oxygen production device is controlled to be greater than the operating speed of the fresh air device.

[0015] The air conditioner and control method provided by the present invention have the following beneficial effects:

[0016] The oxygen-generating pipe is sleeved in the fresh air pipe, and there is a gap between the oxygen-generating pipe and the fresh air pipe. The fresh air function is combined with the oxygen-generating function to save space and simplify installation, avoiding the problem that multiple pipes need to be arranged together, which requires complicated pipe arrangement, wrapping and hole expansion before they can pass through the wall. At the same time, the oxygen-generating air intake pipe path is reduced, and the oxygen-generating efficiency is improved. By utilizing the positive pressure characteristic of the fresh air component, the fresh air required for oxygen production can be ensured without adding an additional damper. Reducing parts simplifies production and improves reliability, while saving space makes it easier to design miniaturized components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 is a structural schematic diagram of an air conditioner of the present invention;

[0019] Figure 2The structure of the indoor unit of the air conditioner of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 3 It is a structural schematic diagram of a fresh air duct in an air conditioner of the present invention;

[0021] Figure 4 The structure of the indoor unit of the air conditioner of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 5 The structure of the indoor unit of the air conditioner of the present invention is shown in FIG. Figure 3 ;

[0023] Figure 6 The structure of the indoor unit of the air conditioner of the present invention is shown in FIG. Figure 4 ;

[0024] Figure 7 The structure of the indoor unit of the air conditioner of the present invention is shown in FIG. Figure 5 .

[0025] The accompanying drawings are marked as follows:

[0026] 1. Indoor unit; 2. Outdoor unit; 3. Fresh air device; 4. Fresh air duct; 5. Oxygen production pipe; 6. Oxygen production air intake channel; 7. Air inlet chamber; 8. Filter. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0029] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0030] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0031] See also Figure 1-7 As shown, according to an embodiment of the present invention, an air conditioner is provided, comprising: an indoor unit 1 and an outdoor unit 2, wherein the indoor unit 1 is equipped with a fresh air device 3, the inlet of the fresh air device 3 is connected to the outdoor unit 2 through a fresh air pipe 4, and the outdoor unit 2 is equipped with an oxygen generator, the air intake of the oxygen generator is connected to the air inlet chamber 7 of the fresh air device 3 through an oxygen generator pipe 5, the oxygen generator pipe 5 is sleeved in the fresh air pipe 4, and there is a gap between the oxygen generator pipe 5 and the fresh air pipe 4. In this technical solution, the oxygen generator pipe 5 is sleeved in the fresh air pipe 4, and there is a gap between the oxygen generator pipe 5 and the fresh air pipe 4. The fresh air function is combined with the oxygen generator function to save space and simplify installation, and the problem of complicated pipe arrangement, wrapping and hole expansion required for multiple pipes to pass through the wall is avoided. At the same time, the oxygen generator air intake pipe path is reduced, and the oxygen generator efficiency is improved. By utilizing the positive pressure characteristic of the fresh air component, the fresh air required for oxygen generation can be ensured without adding an additional damper. Reducing the number of parts simplifies production and improves reliability, while saving space makes it easier to design miniaturized components.

[0032] In some embodiments, the inner diameter of the fresh air pipe 4 is D, and the outer diameter of the oxygen production pipe 5 is D1, which satisfies D / D1≥2. In this technical solution, the inner diameter of the fresh air pipe 4 is D, and the outer diameter of the oxygen production pipe 5 is D1, which satisfies D / D1≥2, meeting the oxygen production air intake demand while ensuring the fresh air volume.

[0033] The air conditioner of the present invention utilizes the size setting of the air duct space and the oxygen-generating air duct to construct a double-air duct, which not only meets the demand for fresh air but also meets the demand for oxygen-generating air intake, thereby achieving the purpose of simplifying installation and solving the problem of multiple-tube wrapping and additional drilling required for the simultaneous routing of the fresh air duct and the oxygen-generating pipe. Compared with the prior art, it saves more space and makes installation simpler.

[0034] In some embodiments, a filter screen 8 is provided in the air inlet chamber 7, and the airflow input from the fresh air pipe 4 flows through the filter screen 8 and then flows into the oxygen production pipe 5. In this technical solution, the airflow input through the fresh air pipe 4 flows through the filter screen 8 and then flows into the oxygen production pipe 5, and the filter screen is shared with the fresh air fan in the air inlet chamber of the fresh air fan to reduce the use of consumables. At the same time, the oxygen production air intake pipeline path is reduced, and the oxygen production efficiency is improved.

[0035] The air conditioner of the present invention has a double air duct designed for the wind component, namely the fresh air inlet duct and the oxygen production air intake duct, which reduces the oxygen production air intake path, improves the oxygen production efficiency, and avoids the need to add additional filters, thereby reducing the consumption of consumables. The problem of the need to add additional filters at the end of the oxygen production equipment air intake pipe is solved; the oxygen production air intake pipe opening is designed in the fresh air fan air intake chamber to share the filter with the fresh air fan to achieve multiple state adjustments by combining fresh air with oxygen production, making it smarter and more efficient to improve air quality and solve the problem of the oxygen production equipment air intake pipe being too long; the problem of the fresh air component and the oxygen production equipment taking up too much space when installed at the same time is solved, and the fresh air function and the oxygen production function are effectively combined, so that the indoor air quality is improved efficiently and more intelligently. At the same time, it is convenient for installation, reduces consumables and saves maintenance costs; after the fresh air fan is turned on, the positive pressure in the fresh air fan ensures that the gas sucked by the oxygen generator is the outdoor gas drawn in by the fresh air fan. The positive pressure characteristic in the air chamber of the fresh air fan ensures that the oxygen generator inhales outdoor air without the need for additional dampers, thereby solving the problem of the need to add additional dampers when combining the intake pipe and fresh air of the oxygen generator; no additional dampers are required to simplify production, increase production rates, save space and improve product reliability; the fresh air fan is used to draw in outdoor air, and the oxygen generator directly inhales the gas passing through the filter to reduce the intake path; the oxygen intake path is reduced to improve oxygen production efficiency, while avoiding the need to add additional filters and reduce consumables.

[0036] In some embodiments, along the flow direction of the airflow of the fresh air pipe 4, the inlet of the oxygen production pipe 5 is located downstream of the filter 8. In this technical solution, along the flow direction of the airflow of the fresh air pipe 4, the inlet of the oxygen production pipe 5 is located downstream of the filter 8. It is ensured that the air inhaled by the inlet of the oxygen production pipe 5 is always the air that passes through the filter 8, thereby preventing dust from entering the oxygen production device and damaging the device.

[0037] The air conditioner of the present invention is composed of an outdoor unit, an oxygen production device, an indoor unit, a fresh air component, and a fresh air and air intake integrated pipe. The oxygen production device is designed to be placed on the outer unit housing and share the housing with the air conditioner outdoor unit. The fresh air component is installed in the air conditioner indoor unit, and the oxygen outlet is designed on the side of the air outlet of the indoor unit. A double air duct is designed in the air inlet cavity of the fresh air device, namely, a fresh air channel and an oxygen production air intake channel. The air duct is designed as a double-channel air duct, that is, a small channel is designed in the fresh air duct to provide an oxygen production air intake path, and the ratio of the inner diameter D of the fresh air duct to the outer diameter D1 of the air intake pipe is greater than or equal to 2, that is, D / D1≥2 meets the oxygen production air intake demand while ensuring the fresh air volume, and the oxygen production air intake pipe port is designed in the air inlet cavity of the fresh air fan to share the filter screen with the fresh air fan to reduce the use of consumables. At the same time, the oxygen production air intake pipeline path is reduced to improve the oxygen production efficiency; the characteristic of the fresh air component that is always in positive pressure is utilized, and the fresh air required for oxygen production can be ensured without adding an additional damper. Reducing parts simplifies production and improves reliability, and at the same time, saving space makes it easier to design miniaturized components.

[0038] In some embodiments, the oxygen production pipe 5 is coaxially arranged with the fresh air pipe 4, and the airflow direction of the oxygen production pipe 5 is opposite to that of the fresh air pipe 4. In this technical solution, the oxygen production pipe 5 is coaxially arranged with the fresh air pipe 4, and the airflow direction of the oxygen production pipe 5 is opposite to that of the fresh air pipe 4. During installation, only one pipeline is needed to ensure the air intake of the fresh air device and the oxygen production device, avoiding the problem of multiple pipelines running together, which requires complicated pipe arrangement, wrapping and hole expansion before passing through the wall.

[0039] In some embodiments, the air inlet chamber 7 has an oxygen inhalation channel, which is connected to the inlet of the oxygen production pipe 5. In this technical solution, the air inlet chamber 7 has an oxygen inhalation channel, which is connected to the inlet of the oxygen production pipe 5. A second air duct is formed in the air inlet chamber 7. When the fresh air blower is turned on, fresh air from the outside is drawn into the room through the fresh air pipe. The air passes through the filter 8 inside the blower to filter out impurities in the air, ensuring the cleanliness of the air. The air cavity of the fresh air device is always in a positive pressure state during operation. When the oxygen production device is turned on, it directly provides clean air to the oxygen production equipment through another air duct of the fresh air device and the air pipe designed inside the air duct, ensuring that the air is clean air from the outside, while reducing the oxygen production inhalation path and improving the oxygen production efficiency.

[0040] In the air inlet chamber 7, the space between the filter and the indoor unit casing can be divided into two spaces by a partition, the inlet of the oxygen production pipe is in one space, and the outlet of the fresh air pipe is in another space, so that the air output from the fresh air pipe passes through the filter and then, under the action of the inlet of the oxygen production pipe, passes through the filter again, thereby entering the inlet of the oxygen production pipe. Alternatively, there can be a space between the filter and the fan of the fresh air device, and the inlet of the oxygen production pipe is arranged in the space between the filter and the fan of the fresh air device, thereby ensuring that the air inhaled by the inlet of the oxygen production pipe is filtered air.

[0041] In some embodiments, the oxygen generator has an oxygen supply port, and the fresh air pipe 4 is connected to the oxygen supply port. In this technical solution, since the oxygen supply port of the oxygen generator is directly connected to the outdoor pipe section of the fresh air pipe 4 of the fresh air device outdoors, the oxygen generator can deliver oxygen to the room with the help of the fresh air pipe 4, which is equivalent to only one fresh air pipe 4 connecting the indoor unit and the outdoor unit of the air conditioner with the fresh air device and the oxygen generator, so the indoor unit does not need to reserve installation space for the oxygen supply pipe, thereby reducing the volume of the indoor unit. At the same time, compared with the two pipes of fresh air and oxygen generator passing through the wall at the same time, the single fresh air pipe 4 passing through the wall occupies less space, and it is also easier and more convenient to install, clean and maintain. Further, because the oxygen generator can deliver oxygen to the room with the help of the fresh air pipe 4, when the oxygen generator and the fresh air device are running at the same time, the two air flows that originally deliver oxygen to the indoor unit and introduce fresh air are combined into one, which can also reduce air flow turbulence and reduce pneumatic noise during operation.

[0042] As a specific implementation, the fresh air pipe 4 includes a first pipe section, a three-way joint and a second pipe section, the three-way joint has a first interface, a second interface and a third interface, one end of the first pipe section is connected to the fresh air device, the end of the first pipe section away from the fresh air device is connected to the first interface, the second pipe section is connected to the second interface, the oxygen supply port is connected to the third interface, and the three-way joint and the second pipe section are combined to form an outdoor pipe section. Among them, the three-way joint can realize the quick and convenient connection of the oxygen supply port with the outdoor pipe section of the fresh air pipe 4.

[0043] The air conditioner of the present invention has a dual-channel design of the air duct, which takes into account both the fresh air inlet and the oxygen production air intake channel; it solves the problem that the fresh air duct and the oxygen production duct need to be bundled with multiple tubes and additional holes when they are run at the same time; the ratio of the inner diameter D of the fresh air duct to the outer diameter D1 of the air intake duct is greater than or equal to 2, that is, D / D1≥2. It solves the problem that the oxygen production device air intake duct and the fresh air need to be combined with an additional damper; the fresh air component is designed with dual air ducts, namely the fresh air inlet duct and the oxygen production air intake duct; it solves the problem that an additional filter needs to be added to the end of the oxygen production equipment air intake duct; the oxygen production air intake duct is designed in the air intake chamber of the fresh air fan to share the filter with the fresh air fan. It solves the problem that the fresh air component and the oxygen production equipment occupy too much space when installed at the same time; it uses the positive pressure in the fresh air fan after the fresh air fan is turned on to ensure that the gas sucked by the oxygen production is the outdoor gas drawn in by the fresh air fan. It solves the problem that the indoor and outdoor temperature difference is too large and the use of fresh air to improve the indoor air causes the fresh air to affect the indoor temperature. The fresh air fan is used to draw in outdoor air, and the oxygen generator directly absorbs the gas passing through the filter, reducing the air intake path; solving the problem of the filter being worn out too quickly due to high-intensity filtration.

[0044] The present invention also provides a control method for the above-mentioned air conditioner, when the set condition is reached, the operating speed of the oxygen production device is controlled to be lower than the operating speed of the fresh air device.

[0045] Furthermore, the set conditions include outdoor air PM2.5 being greater than a set value, or indoor oxygen concentration being less than a set oxygen concentration.

[0046] Furthermore, when the set condition is not met, the operating speed of the oxygen production device is controlled to be greater than the operating speed of the fresh air device.

[0047] In this technical solution, when the air conditioner is turned on, the sensor on the air conditioner begins to collect the temperature and air quality conditions of the outdoor environment.

[0048] When the outdoor temperature H0 degrees ≥ H or H ≥ 30 degrees; or when the outdoor air PM2.5 is greater than the program setting value, the fresh air fan runs at a low speed to ensure that the positive pressure inside the fresh air fan provides clean air to the oxygen generator, and the oxygen generator runs at a high speed to ensure the indoor oxygen concentration. Avoid the low and high temperature air outside from having too much impact on indoor problems. Or reduce the excessive loss of the filter due to poor outdoor air.

[0049] When the outdoor temperature H0 degrees < H or H < 30 degrees; or the outdoor air PM2.5 is less than the program setting value, the fresh air fan runs at high speed and the oxygen production equipment runs at low speed, improving the efficiency of indoor air quality, ensuring the stability of indoor oxygen concentration, and reducing the loss of oxygen production equipment.

[0050] The control method of the air conditioner of the present invention combines fresh air with oxygen production to achieve multiple state adjustments, making it more intelligent to improve air quality, and more efficiently solving the problem of water overflowing from the water receiving tray of the air conditioner after water storage reaches a certain level. It effectively combines the fresh air function and the oxygen production function, and is more intelligent to improve indoor air quality. At the same time, it is convenient to install, reduces consumables, and saves maintenance costs; the flow of the fresh air component and the oxygen production equipment is controlled by designing a program to achieve precise control of multiple states, and the different states of fresh air and oxygen production are selected by collecting indoor and outdoor temperature information and air quality information, so as to achieve more intelligent control, save energy, and increase the service life of the filter. It solves the problem that the indoor temperature is unstable due to excessive use of fresh air, the air conditioner needs to work all the time and consumes energy, and the filter is constantly filtered with high intensity, resulting in excessive loss. It is intelligently controlled, saves energy, and increases the service life of the filter; the outlet of the oxygen delivery pipe is designed on the left side of the indoor air outlet to better diffuse oxygen into the room, solves the problem of uneven distribution of indoor oxygen caused by accumulation of oxygen in a small range, and makes the oxygen inside the room evenly distributed.

[0051] The control method of the air conditioner of the present invention realizes precise control of various states by designing a program to control the flow of the fresh air component and the oxygen generator, thereby solving the problem that the air intake pipe of the oxygen generator needs to go around to the outdoors, resulting in the pipe being too long; the outlet of the oxygen delivery pipe is designed on the side of the indoor air outlet to better diffuse the oxygen into the room, thereby solving the problem that the oxygen is accumulated in a small area, resulting in uneven distribution of oxygen in the room.

[0052] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. An air conditioner, characterized in that: include: An indoor unit (1) and an outdoor unit (2), wherein the indoor unit (1) is equipped with a fresh air device (3), the inlet of the fresh air device (3) is connected to the outdoor unit (2) via a fresh air pipe (4), and the outdoor unit (2) is equipped with an oxygen generator, the air intake of the oxygen generator is connected to an air inlet chamber (7) of the fresh air device (3) via an oxygen generator pipe (5), the oxygen generator pipe (5) is sleeved in the fresh air pipe (4), and a gap is provided between the oxygen generator pipe (5) and the fresh air pipe (4).

2. The air conditioner according to claim 1, characterized in that: The inner diameter of the fresh air pipe (4) is D, and the outer diameter of the oxygen production pipe (5) is D1, which satisfies D / D1≥2.

3. The air conditioner according to claim 1, characterized in that: A filter screen (8) is provided in the air inlet chamber (7), and the airflow input from the fresh air pipe (4) flows through the filter screen (8) and then flows into the oxygen production pipe (5).

4. The air conditioner according to claim 5, characterized in that: Along the flow direction of the airflow of the fresh air pipe (4), the inlet of the oxygen production pipe (5) is located downstream of the filter screen (8).

5. The air conditioner according to claim 1, characterized in that: The oxygen production pipe (5) is coaxially arranged with the fresh air pipe (4), and the air flow direction of the oxygen production pipe (5) is opposite to the air flow direction of the fresh air pipe (4).

6. The air conditioner according to claim 1, characterized in that: The air inlet chamber (7) has an oxygen-generating air intake passage therein, and the oxygen-generating air intake passage is connected to the inlet of the oxygen-generating pipe (5).

7. The air conditioner according to claim 1, characterized in that: The oxygen production device has an oxygen supply port, and the fresh air pipe (4) is connected to the oxygen supply port.

8. The air conditioner control method according to any one of claims 1 to 7, characterized in that: When the set conditions are met, the operating speed of the oxygen production device is controlled to be lower than the operating speed of the fresh air device.

9. The air conditioner control method according to claim 8, characterized in that: The set conditions include outdoor air PM2.5 being greater than a set value, or indoor oxygen concentration being less than a set oxygen concentration.

10. The air conditioner control method according to claim 8, characterized in that: When the set condition is not met, the operating speed of the oxygen production device is controlled to be greater than the operating speed of the fresh air device.

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