Air conditioner control method and air conditioner

Abstract

The invention relates to the technical field of air conditioner equipment, in particular to an air conditioner control method and an air conditioner, and aims to solve the problem that an existing air conditioner cannot adjust indoor oxygen content and air quality at the same time. In order to achieve the purpose, the air conditioner comprises a fresh air device and an oxygen generation device which are sequentially communicated, an inlet of the fresh air device is communicated with the outdoor space and can guide fresh air into the oxygen generation device, and an outlet of the oxygen generation device is communicated with the indoor space and can separate oxygen in the fresh air and guide the oxygen into the indoor space; the control method comprises the steps that the indoor oxygen content is obtained; selectively executing an oxygen generation mode according to the oxygen content; and in the oxygen generation mode, the fresh air device and the oxygen generation device are turned on so as to introduce oxygen into a room. Therefore, the air conditioner can conduct indoor ventilation and oxygen supplementation in different outdoor environments, it is guaranteed that the appropriate oxygen content and cleanliness of indoor air are maintained, and the adjusting capacity of the air conditioner in different environments is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and specifically provides a control method of an air conditioner and an air conditioner. Background Art

[0002] In recent years, many air-conditioning equipment have fresh air function and oxygen production function, which can not only bring fresh air from outdoor into indoor, realize indoor and outdoor air exchange, but also use fresh air to prepare oxygen, and adjust the oxygen content by adding high-purity oxygen to the room, so that the indoor air reaches carbon-oxygen balance, which is beneficial to the user's health and improves the user experience.

[0003] However, when the outdoor air quality is poor, the use of the oxygen production function will be limited to avoid indoor air pollution, resulting in the air conditioner being unable to simultaneously take into account the regulation of indoor oxygen content and air quality.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Summary of the invention

[0005] The present invention aims to solve the above technical problem, that is, to solve the problem that the existing air conditioner cannot adjust the indoor oxygen content and air quality at the same time.

[0006] In a first aspect, the present invention provides a control method for an air conditioner, the air conditioner comprising a fresh air device and an oxygen generator connected in sequence, the inlet of the fresh air device being connected to the outdoors and capable of introducing fresh air into the oxygen generator, the outlet of the oxygen generator being connected to the indoors and capable of separating oxygen from the fresh air and introducing it into the indoors; the control method comprises: obtaining the indoor oxygen content; selectively executing an oxygen production mode according to the oxygen content; in the oxygen production mode, starting the fresh air device and the oxygen generator to introduce oxygen into the indoors.

[0007] In the preferred technical solution of the above control method, the step of "selectively executing the oxygen production mode according to the oxygen content" specifically includes: comparing the oxygen content with a preset oxygen content; and selectively executing the oxygen production mode according to the comparison result.

[0008] In the preferred technical solution of the above control method, the step of "selectively executing the oxygen production mode according to the comparison result" specifically includes: if the oxygen content is greater than the preset oxygen content, the oxygen production mode is not executed; and / or if the oxygen content is not greater than the preset oxygen content, the oxygen production mode is executed.

[0009] In a preferred technical solution of the above control method, the fresh air device includes a first fresh air duct, a second fresh air duct and a filter device, the inlet of the first fresh air duct and the inlet of the second fresh air duct are both connected to the outside, the outlet of the first fresh air duct and the outlet of the second fresh air duct are both connected to the inlet of the oxygen production device, and the filter device is installed in the second fresh air duct; the oxygen production mode includes a first oxygen production mode and a second oxygen production mode, wherein, in the first oxygen production mode, the first fresh air duct is opened and the second fresh air duct is closed; in the second oxygen production mode, the second fresh air duct is opened and the first fresh air duct is closed; in the case where the oxygen production mode needs to be executed, the control method further includes: acquiring an outdoor air pollution index; and selectively executing the first oxygen production mode or the second oxygen production mode according to the air pollution index.

[0010] In the preferred technical solution of the above control method, the step of "selectively executing the first oxygen production mode or the second oxygen production mode according to the air pollution index" specifically includes: comparing the air pollution index with a preset air pollution index; and selectively executing the first oxygen production mode or the second oxygen production mode according to the comparison result.

[0011] In the preferred technical solution of the above control method, the step of "selectively executing the first oxygen production mode or the second oxygen production mode according to the comparison result" specifically includes: if the air pollution index is not greater than the preset air pollution index, executing the first oxygen production mode; and / or if the air pollution index is greater than the preset air pollution index, executing the second oxygen production mode.

[0012] In a preferred technical solution of the above control method, the oxygen production device includes a molecular sieve, and the molecular sieve includes an air inlet, an oxygen outlet and a nitrogen outlet. The air inlet is connected to the fresh air device, the oxygen outlet is connected to the room to introduce the separated oxygen into the room, and the nitrogen outlet is connected to the outside to discharge the remaining nitrogen to the outside. In the process of executing the oxygen production mode, the control method of the present invention also includes: obtaining the amount of nitrogen in the molecular sieve; comparing the nitrogen amount with a preset nitrogen amount; and selectively opening the nitrogen outlet according to the comparison result.

[0013] In the preferred technical solution of the above control method, the step of "selectively opening the nitrogen outlet according to the comparison result" specifically includes: if the nitrogen amount is greater than the preset nitrogen amount, opening the nitrogen outlet; and / or if the nitrogen amount is not greater than the preset nitrogen amount, closing the nitrogen outlet.

[0014] In the preferred technical solution of the above control method, when the oxygen production mode does not need to be executed, the control method of the present invention further includes: enabling the air conditioner to execute a fresh air mode; in the fresh air mode, starting the fresh air device to deliver fresh air to the room.

[0015] In a second aspect, the present invention provides an air conditioner, comprising a controller configured to execute the above control method.

[0016] In the case of adopting the above technical solution, the air conditioner of the present invention includes a fresh air device and an oxygen generator connected in sequence, the inlet of the fresh air device is connected to the outside, and can introduce fresh air into the oxygen generator, and the outlet of the oxygen generator is connected to the indoor, and can separate oxygen from the fresh air and introduce it into the indoor; the control method of the present invention includes: obtaining the indoor oxygen content; selectively executing the oxygen production mode according to the oxygen content; in the oxygen production mode, starting the fresh air device and the oxygen generator to introduce oxygen into the indoor. Through such a setting, the air conditioner can produce high-purity oxygen by introducing fresh air from the outside to supplement the indoor oxygen when the indoor oxygen content is low, so as to achieve a dynamic balance of the oxygen content, so as to keep the oxygen content within an appropriate range and improve the user's comfort and experience.

[0017] Furthermore, the control method of the present invention further includes: comparing the oxygen content with the preset oxygen content; and selectively executing the oxygen production mode according to the comparison result. By presetting the oxygen content, the indoor oxygen content most suitable for human health can be calibrated, so as to control the start and stop of the oxygen production mode according to the comparison result between the actual oxygen content and the preset oxygen content.

[0018] Furthermore, the control method of the present invention further includes: if the oxygen content is greater than the preset oxygen content, the oxygen production mode is not executed; and / or if the oxygen content is not greater than the preset oxygen content, the oxygen production mode is executed. Through such a setting, the air conditioning system can execute the oxygen production mode to replenish the indoor oxygen in time when the indoor oxygen content is low, and not execute the oxygen production mode to save energy when the oxygen content is high.

[0019] Furthermore, the fresh air device of the present invention includes a first fresh air duct, a second fresh air duct and a filtering device, the inlet of the first fresh air duct and the inlet of the second fresh air duct are both connected to the outside, the outlet of the first fresh air duct and the outlet of the second fresh air duct are both connected to the inlet of the oxygen production device, and the filtering device is installed in the second fresh air duct; the oxygen production mode includes a first oxygen production mode and a second oxygen production mode, wherein, in the first oxygen production mode, the first fresh air duct is opened and the second fresh air duct is closed; in the second oxygen production mode, the second fresh air duct is opened and the first fresh air duct is closed; when it is necessary to execute the oxygen production mode, the control method of the present invention also includes: obtaining an outdoor air pollution index; and selectively executing the first oxygen production mode or the second oxygen production mode according to the air pollution index. Through the first fresh air duct, the air conditioner can directly introduce clean fresh air into the oxygen generator for oxygen production when the outdoor air quality is good; through the second fresh air duct, the air conditioner can introduce fresh air into the second fresh air duct when the outdoor air quality is poor, first filter the fresh air, and then introduce the clean air into the oxygen generator, thereby ensuring the cleanliness of the fresh air and preventing dust or particles from entering the oxygen generator.

[0020] Furthermore, the control method of the present invention further includes: comparing the air pollution index with a preset air pollution index; and selectively executing the first oxygen production mode or the second oxygen production mode according to the comparison result. The critical value of the outdoor air quality is calibrated by setting the preset air pollution index, so as to make an accurate assessment of the outdoor air quality.

[0021] Furthermore, the control method of the present invention also includes: if the air pollution index is not greater than the preset air pollution index, the first oxygen production mode is executed; and / or if the air pollution index is greater than the preset air pollution index, the second oxygen production mode is executed. Through such a setting, when the outdoor air quality is good, the fresh air can be directly introduced into the oxygen production device to ensure the flow rate and flow of the fresh air, which is conducive to improving the oxygen production efficiency; when the outdoor air quality is poor, the fresh air is first filtered to ensure the cleanliness of the fresh air and prevent impurities and particles in the air from damaging the compressor.

[0022] Furthermore, the oxygen production device of the present invention includes a molecular sieve, and the molecular sieve includes an air inlet, an oxygen outlet and a nitrogen outlet. The air inlet is connected to the fresh air device, the oxygen outlet is connected to the room to introduce the separated oxygen into the room, and the nitrogen outlet is connected to the outside to discharge the remaining nitrogen to the outside. In the process of executing the oxygen production mode, the control method of the present invention also includes: obtaining the amount of nitrogen in the molecular sieve; comparing the amount of nitrogen with the preset amount of nitrogen; and selectively opening the nitrogen outlet according to the comparison result. Through such a setting, the molecular sieve can be used to adsorb nitrogen in the fresh air so that oxygen can pass smoothly, thereby achieving the purpose of separating oxygen and ensuring the purity and stability of the oxygen production equipment.

[0023] Furthermore, the control method of the present invention further includes: if the amount of nitrogen is greater than the preset amount of nitrogen, opening the nitrogen outlet; and / or if the amount of nitrogen is not greater than the preset amount of nitrogen, closing the nitrogen outlet. The nitrogen outlet is dynamically controlled by the amount of nitrogen accumulated in the molecular sieve, so that the nitrogen can be discharged in time when the adsorption amount of nitrogen is close to saturation, so as to avoid affecting the adsorption capacity of the molecular sieve for nitrogen and ensure stable oxygen production efficiency.

[0024] Furthermore, when the oxygen production mode is not required, the control method of the present invention further includes: enabling the air conditioner to execute the fresh air mode; in the fresh air mode, starting the fresh air device to deliver fresh air to the room. By setting the fresh air mode, the user's ventilation needs can be met when the indoor oxygen content is high, avoiding excessive indoor oxygen content, and improving the adjustment ability of the air conditioner under different environmental conditions.

[0025] In addition, the air conditioner further provided by the present invention on the basis of the above-mentioned control method has the technical effect possessed by the above-mentioned control method because it adopts the above-mentioned control method. Compared with the air conditioner before the improvement, the air conditioner of the present invention can selectively execute the corresponding ventilation and oxygen production mode according to different outdoor air quality conditions, so that the oxygen production function is not limited and affected by the outdoor air quality, and the appropriate oxygen content and cleanliness of the indoor air are maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0027] Figure 1 is a schematic structural diagram of an air conditioner of the present invention;

[0028] Figure 2 is a flow chart of a method for controlling an air conditioner of the present invention;

[0029] Figure 3 is a flow chart of a first embodiment of a method for controlling an air conditioner of the present invention;

[0030] Figure 4It is a flow chart of Embodiment 2 of the air conditioner control method of the present invention.

[0031] List of reference numerals:

[0032] 1. Outdoor unit; 11. First fresh air duct; 2. Indoor unit; 21. Second fresh air duct; 22. Filter device; 23. Fan; 24. Fresh air outlet; 3. Oxygen generator; 31. Molecular sieve; 311. Air inlet; 312. Oxygen outlet; 313. Nitrogen outlet; 32. Compressor. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0034] It should be noted that in the description of the present invention, the terms "inside", "outside", "top" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "setting" and "installation" should be understood in a broad sense. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Based on the problem pointed out in the background technology that the existing air conditioner cannot adjust the indoor oxygen content and air quality at the same time. The present invention provides a control method of an air conditioner and an air conditioner, which meets the oxygen production needs in different environments by setting two parallel fresh air channels, and sets a first oxygen production mode and a second oxygen production mode based on the two fresh air channels, so that the air conditioner can ensure the normal operation of the oxygen production mode under different outdoor air quality conditions, thereby maintaining the appropriate oxygen content and cleanliness of the indoor air.

[0037] In order to achieve better thermal insulation effects, modern residences and offices have good sealing properties, especially in winter when doors and windows are closed to form a relatively sealed indoor environment, which makes it difficult for air to circulate between indoor and outdoor areas. When there are many people indoors or when cooking with open flames, the indoor oxygen will be consumed quickly. If it cannot be replenished quickly, the oxygen content will drop rapidly, causing discomfort to the human body, such as headaches, chest tightness, etc.

[0038] Although many existing air-conditioning devices have a fresh air function that can bring outdoor air into the room, when the oxygen content both indoors and outdoors is low, turning on the fresh air function cannot quickly increase the oxygen content.

[0039] Therefore, if Figure 1 As shown, the air conditioner of the present invention comprises an indoor unit 2, an outdoor unit 1 and an oxygen generator 3. The oxygen generator 3 can be used to produce high-purity oxygen to supplement the indoor air, thereby achieving a rapid increase in oxygen content.

[0040] Specifically, the oxygen production equipment 3 can be installed on the top of the outdoor unit 1 as an optional configuration, including a shell, and an oxygen production device is arranged inside the shell. The oxygen production device is connected in series with the fresh air device of the air conditioner. The fresh air device can be used to introduce outdoor fresh air into the oxygen production device. The oxygen production device can use the introduced fresh air to produce high-purity oxygen, and transport the produced oxygen into the room through a pipeline to quickly replenish the oxygen in the room and increase the oxygen content, thereby realizing the oxygen production mode of the air conditioner.

[0041] It should be noted that, in actual applications, the oxygen production device can use a molecular sieve 31, or an electrolysis device, etc. The present application preferably sets the oxygen production device as a molecular sieve 31, including an air inlet 311, an oxygen outlet 312 and a nitrogen outlet 313. The air inlet 311 is connected to the fresh air device, and the oxygen outlet 312 is connected to the indoor room. The molecular sieve 31 can adsorb nitrogen in the air to introduce the separated oxygen into the indoor room through the oxygen outlet 312. The nitrogen outlet 313 is connected to the outdoors and can discharge the adsorbed nitrogen to the outdoors.

[0042] Preferably, if Figure 2 As shown, the control method provided by the present invention based on the above air conditioner specifically includes:

[0043] S1000: Get the oxygen content in the room;

[0044] S2000: Selectively execute the oxygen production mode according to the oxygen content.

[0045] That is to say, during the operation of the air conditioner, the indoor oxygen content can be detected in real time through the oxygen detection device installed on the indoor unit 2, so that the controller can dynamically control the start and stop of the fresh air device and the oxygen production device according to the real-time detected oxygen content, ensuring that the indoor oxygen content is maintained at an appropriate level.

[0046] Preferably, if Figure 3 As shown in the figure, the steps of "selectively executing the oxygen production mode according to the oxygen content" specifically include:

[0047] S2100: comparing the oxygen content with a preset oxygen content;

[0048] S2200: Selectively executing the oxygen production mode according to the comparison result.

[0049] The preset oxygen content can reflect the most suitable oxygen level in the room. Since the optimal indoor oxygen content is usually between 19.5% and 23.5%, the present application preferably sets the preset oxygen content to 20%. When the indoor oxygen content reaches the preset oxygen content, the human body can reach the optimal blood oxygen content, provide more oxygen to the lungs, promote blood circulation, help improve respiratory problems, enhance the function of the immune system, and at the same time keep the mood happy.

[0050] Preferably, if Figure 3 As shown, the step of "selectively executing the oxygen production mode according to the comparison result" specifically includes:

[0051] S2210: If the oxygen content is greater than the preset oxygen content, the oxygen generation mode is not executed;

[0052] S2220: If the oxygen content is not greater than the preset oxygen content, the oxygen production mode is executed.

[0053] That is, when the indoor oxygen content is greater than 20%, it means that the indoor oxygen is sufficient to meet the normal oxygen supply needs of the human body, and there is no need to execute the oxygen production mode;

[0054] When the indoor oxygen content is lower than 20%, it will be close to the lower limit of the optimal range of oxygen content (19.5%). It is necessary to operate the oxygen production mode before the oxygen content drops to the lower limit to prevent oxygen from being consumed too quickly and causing discomfort to the user.

[0055] However, when encountering weather conditions with excessive PM2.5 such as haze or blowing sand, turning on the oxygen production mode will draw poorly clean outdoor air into the room, which will not only cause the indoor air quality to deteriorate and affect human health, but will also affect the service life of the oxygen production equipment 3 or even damage it.

[0056] Therefore, the fresh air device of the present invention includes a first fresh air duct 11, a second fresh air duct 21 and a filter device 22. The inlet of the first fresh air duct 11 and the inlet of the second fresh air duct 21 are both connected to the outdoors, the outlet of the first fresh air duct 11 and the outlet of the second fresh air duct 21 are both connected to the inlet of the oxygen production device, and the filter device 22 is installed in the second fresh air duct 21, and is preferably set to a HEPA high-efficiency filter; the oxygen production mode includes a first oxygen production mode and a second oxygen production mode, wherein, in the first oxygen production mode, the first fresh air duct 11 is opened and the second fresh air duct 21 is closed; in the second oxygen production mode, the second fresh air duct 21 is opened and the first fresh air duct 11 is closed.

[0057] Therefore, if Figure 4 As shown, in the case where the oxygen generation mode needs to be executed, the control method of the present invention further includes:

[0058] S2221: Get the outdoor air pollution index;

[0059] S2222: Selectively executing the first oxygen production mode or the second oxygen production mode according to the air pollution index.

[0060] like Figure 1 As shown, in a preferred embodiment of the present invention, the first fresh air pipeline 11 is arranged in the shell of the oxygen production equipment 3, and a compressor 32 is also installed in the shell, the inlet of the first fresh air pipeline 11 is connected to the outdoors, the outlet of the first fresh air pipeline 11 is connected to the inlet of the compressor 32, the outlet of the compressor 32 is connected to the oxygen inlet of the molecular sieve 31, and the oxygen outlet 312 of the molecular sieve 31 is connected to the air outlet on the indoor unit 2 to deliver oxygen into the room.

[0061] The second fresh air duct 21 is arranged on the indoor unit 2, and its inlet is connected to the outdoors, and the outlet is directly connected to the air inlet 311 of the molecular sieve 31. Unlike the first fresh air duct 11, a fan 23 and a filter device 22 are also arranged in the second fresh air duct 21. The fan 23 provides power for the flow of air in the second fresh air duct 21, and the filter device 22 can filter the fresh air flow with poor air quality to filter out impurities and particles in the air to ensure the cleanliness of the air.

[0062] Therefore, based on the preferred implementation scheme of the above two fresh air pipelines, in the first oxygen production mode, the inlet of the first fresh air pipeline 11 is opened (by setting a control valve, etc.), the compressor 32 and the oxygen production device are operated, and the inlet and / or outlet of the second fresh air pipeline 21 is closed, so that when the outdoor air quality is good, clean fresh air can be directly sucked in and pressurized by the compressor 32 to press the fresh air into the molecular sieve 31, ensuring that the fresh air has sufficient pressure to pass through the molecular sieve 31 to complete the filtration.

[0063] In the second oxygen production mode, the inlet and outlet of the second fresh air pipeline 21 are opened (by setting a control valve or the like), the fan 23 and the oxygen production device are operated, and the inlet and the compressor 32 of the first fresh air pipeline 11 are closed, so that when the outdoor air quality is poor, the fan 23 can be used to suck fresh air into the second fresh air pipeline 21, so that impurities and particles are first filtered out by the filter device 22 in the second fresh air pipeline 21, and then blown into the molecular sieve 31 by the fan 23, thereby ensuring the cleanliness of the fresh air and the energy saving of the air conditioner.

[0064] Preferably, if Figure 4 As shown, the step of "selectively executing the first oxygen production mode or the second oxygen production mode according to the air pollution index" specifically includes:

[0065] S2223: Compare the air pollution index with a preset air pollution index;

[0066] S2224: According to the comparison result, selectively execute the first oxygen production mode or the second oxygen production mode.

[0067] The outdoor air quality is divided into two intervals, good and poor, by setting the preset air pollution index. That is, when the air pollution index is not greater than the preset air pollution index, it means that the air quality is good and will not affect human health; when the air pollution index is greater than the preset air pollution index, it means that the air quality is poor and will affect human health, thereby making an accurate assessment of the quality of outdoor air.

[0068] Specifically, according to the classification standard of the air pollution index, the air pollution index is divided into six levels: 0-50, 51-100, 101-150, 151-200, 201-300 and greater than 300, corresponding to the six levels of air quality. The larger the index, the higher the level, indicating that the pollution is more serious and the impact on human health is more obvious. Among them, when the air pollution index does not exceed 100, it will not affect human health. Therefore, in the present invention, it is preferred to set the preset air pollution index to 100. When the air pollution index exceeds 100, it will affect human health.

[0069] Preferably, if Figure 4 As shown, the step of "selectively executing the first oxygen production mode or the second oxygen production mode according to the comparison result" specifically includes:

[0070] S2225: If the air pollution index is not greater than the preset air pollution index, executing the first oxygen production mode;

[0071] S2226: If the air pollution index is greater than the preset air pollution index, the second oxygen production mode is executed.

[0072] Therefore, when the outdoor air quality is good, the fresh air can be directly pressed into the oxygen generator through the compressor 32, without the obstruction of the airflow by the filter device 22, so that the flow rate and flow of the fresh air can be ensured, which is conducive to improving the oxygen production efficiency;

[0073] When the outdoor air quality is poor, the fresh air is filtered first to ensure the cleanliness of the fresh air and prevent impurities and particles in the air from damaging the compressor 32. Shutting down the compressor 32 also helps control energy consumption.

[0074] In addition, according to the working principle of the molecular sieve 31, when the amount of nitrogen adsorbed in the molecular sieve 31 is too large, a nitrogen saturation state will occur. After reaching the saturation state, the molecular sieve 31 will slow down or stop the adsorption of nitrogen, thereby affecting the separation of oxygen.

[0075] Therefore, during the execution of the oxygen production mode, the control method of the present invention further includes:

[0076] Obtaining the amount of nitrogen in the molecular sieve 31;

[0077] comparing the nitrogen amount with a preset nitrogen amount;

[0078] According to the comparison result, the nitrogen outlet 313 is selectively opened.

[0079] Preferably, the step of “selectively opening the nitrogen outlet 313 according to the comparison result” specifically includes:

[0080] If the nitrogen amount is greater than the preset nitrogen amount, the nitrogen outlet 313 is opened;

[0081] If the nitrogen amount is not greater than the preset nitrogen amount, the nitrogen outlet 313 is closed.

[0082] The nitrogen outlet 313 is dynamically controlled by the amount of nitrogen stored in the molecular sieve 31, so that the nitrogen can be discharged in time when the adsorption amount of nitrogen is close to saturation, thereby avoiding affecting the adsorption capacity of the molecular sieve 31 for nitrogen and ensuring stable oxygen production efficiency.

[0083] Illustratively, a pressure pin can be provided at the position of the nitrogen outlet 313. When the nitrogen pressure inside the molecular sieve 31 reaches a threshold value, the nitrogen inside the molecular sieve 31 will push the pressure pin open to release the nitrogen inside the molecular sieve 31. When the pressure drops below the safety threshold, the pressure pin will slowly and automatically retract, thereby maintaining the pressure balance inside the molecular sieve 31, continuously separating the nitrogen and oxygen in the air, and ensuring the smooth output of pure oxygen.

[0084] In a preferred embodiment of the present invention, the fresh air device can also be directly connected to the indoor room without passing through the oxygen generator, so that the fresh air mode can be turned on without executing the oxygen generator mode (such as when the indoor oxygen content is greater than the preset oxygen content), and the outdoor fresh air can be directly introduced into the indoor room to achieve ventilation.

[0085] Therefore, if Figure 4 As shown, when the oxygen generation mode does not need to be executed, the control method of the present invention further includes:

[0086] S2211: Execute fresh air mode;

[0087] In the fresh air mode, the fresh air device is started to deliver fresh air to the room.

[0088] Specifically, the second fresh air pipeline 21 is further provided with a fresh air outlet 24 connected to the room, and the fresh air outlet 24 is located between the filter device 22 and the oxygen generator.

[0089] In a preferred implementation of the fresh air mode, the inlet of the second fresh air pipeline 21, the fresh air outlet 24 and the fan 23 are opened, and the inlet of the first fresh air pipeline 11, the compressor 32, the outlet of the second fresh air pipeline 21 and the oxygen generator are closed.

[0090] By setting the fresh air mode, the user's ventilation needs can be met when the indoor oxygen content is high, the indoor oxygen content can be prevented from exceeding the standard, and the air conditioner's adjustment ability under different environmental conditions can be improved.

[0091] In addition, the air conditioner further provided by the present invention on the basis of the above-mentioned control method has the technical effect possessed by the above-mentioned control method because it adopts the above-mentioned control method. Compared with the air conditioner before the improvement, the air conditioner of the present invention can selectively execute the corresponding ventilation and oxygen production mode according to different outdoor air quality conditions, so that the oxygen production function is not limited and affected by the outdoor air quality, and the appropriate oxygen content and cleanliness of the indoor air are maintained.

[0092] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that: The air conditioner comprises a fresh air device and an oxygen generator connected in sequence, wherein the inlet of the fresh air device is connected to the outside and can introduce fresh air into the oxygen generator, and the outlet of the oxygen generator is connected to the room and can separate oxygen from the fresh air and introduce it into the room; The control method comprises: Get the oxygen content in the room; selectively executing an oxygen production mode according to the oxygen content; In the oxygen production mode, the fresh air device and the oxygen production device are started to introduce oxygen into the room.

2. The control method according to claim 1, characterized in that: The step of "selectively executing the oxygen production mode according to the oxygen content" specifically includes: comparing the oxygen content with a preset oxygen content; The oxygen production mode is selectively executed according to the comparison result.

3. The control method according to claim 2, characterized in that: The step of "selectively executing the oxygen production mode according to the comparison result" specifically includes: If the oxygen content is greater than the preset oxygen content, the oxygen production mode is not executed; and / or If the oxygen content is not greater than the preset oxygen content, the oxygen production mode is executed.

4. The control method according to claim 1, characterized in that: The fresh air device includes a first fresh air pipeline 11, a second fresh air pipeline 21 and a filter device 22. The inlet of the first fresh air pipeline 11 and the inlet of the second fresh air pipeline 21 are both connected to the outside, the outlet of the first fresh air pipeline 11 and the outlet of the second fresh air pipeline 21 are both connected to the inlet of the oxygen generator, and the filter device 22 is installed in the second fresh air pipeline 21; The oxygen production mode includes a first oxygen production mode and a second oxygen production mode, wherein in the first oxygen production mode, the first fresh air pipeline 11 is opened and the second fresh air pipeline 21 is closed; In the second oxygen production mode, the second fresh air pipeline 21 is opened, and the first fresh air pipeline 11 is closed; In the case where the oxygen production mode needs to be executed, the control method further includes: Get the outdoor air pollution index; The first oxygen generation mode or the second oxygen generation mode is selectively executed according to the air pollution index.

5. The control method according to claim 4, characterized in that: The step of "selectively executing the first oxygen production mode or the second oxygen production mode according to the air pollution index" specifically includes: comparing the air pollution index with a preset air pollution index; According to the comparison result, the first oxygen production mode or the second oxygen production mode is selectively executed.

6. The control method according to claim 5, characterized in that: The step of "selectively executing the first oxygen production mode or the second oxygen production mode according to the comparison result" specifically includes: If the air pollution index is not greater than the preset air pollution index, executing the first oxygen production mode; and / or If the air pollution index is greater than the preset air pollution index, the second oxygen production mode is executed.

7. The control method according to claim 1, characterized in that: The oxygen production device includes a molecular sieve 31, and the molecular sieve 31 includes an air inlet 311, an oxygen outlet 312 and a nitrogen outlet 313. The air inlet 311 is connected to the fresh air device, and the oxygen outlet 312 is connected to the room to introduce the separated oxygen into the room. The nitrogen outlet 313 is connected to the outside to discharge the remaining nitrogen to the outside. In the process of executing the oxygen production mode, the control method of the present invention also includes: Obtaining the amount of nitrogen in the molecular sieve 31; comparing the nitrogen amount with a preset nitrogen amount; According to the comparison result, the nitrogen outlet 313 is selectively opened.

8. The control method according to claim 7, characterized in that: The step of "selectively opening the nitrogen outlet 313 according to the comparison result" specifically includes: If the nitrogen amount is greater than the preset nitrogen amount, the nitrogen outlet 313 is opened; and / or If the nitrogen amount is not greater than the preset nitrogen amount, the nitrogen outlet 313 is closed.

9. The control method according to any one of claims 1 to 8, characterized in that: In the case where the oxygen production mode does not need to be executed, the control method of the present invention further includes: Enable the air conditioner to execute a fresh air mode; In the fresh air mode, the fresh air device is started to deliver fresh air into the room.

10. An air conditioner, characterized in that: The air conditioner includes a controller configured to be able to execute the control method according to any one of claims 1 to 9.

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