Oxygen production system, air conditioning system and control method

Abstract

The present invention provides an oxygen production system, an air conditioning system and a control method, wherein the oxygen production system comprises: an oxygen production component and a main oxygen storage device that are interconnected, wherein the oxygen production component has an oxygen production state for producing air into oxygen and a stop state for stopping operation; a buffer oxygen storage device, wherein the oxygen outlet of the buffer oxygen storage device and the oxygen outlet of the main oxygen storage device can be selectively opened or closed; wherein, when the oxygen production component is in the oxygen production state, the buffer oxygen storage device can be selectively connected or disconnected with the oxygen production component, the oxygen outlet of the main oxygen storage device is opened, and the oxygen outlet of the buffer oxygen storage device is closed; and when the oxygen production component is in the stop state, the oxygen outlet of the buffer oxygen storage device is opened. The technical solution provided by the present invention can solve the technical problem that the oxygen production system in the prior art has a large noise during the oxygen production process.

Description

Technical Field

[0001] The present invention relates to the technical field of oxygen production systems, and in particular to an oxygen production system, an air conditioning system and a control method. Background Art

[0002] At present, existing air conditioners with oxygen production function usually use a molecular sieve oxygen production module installed in the outdoor unit to filter and compress the air in the outdoor air, and then transport it to the indoor unit through pipelines, thereby achieving regulation of the oxygen content in the indoor air.

[0003] However, during the use of the molecular sieve oxygen production module, the air compressor produces loud operating noise, and the discontinuous noise generated by the release of nitrogen from the molecular sieve module is also relatively large. When users need a quieter indoor environment, the existing air conditioners with oxygen production function have loud noise and poor sound quality, which cannot meet user needs and seriously affects the user experience. Summary of the invention

[0004] The main purpose of the present invention is to provide an oxygen production system, an air conditioning system and a control method to solve the technical problem that the oxygen production system in the prior art has high noise during the oxygen production process.

[0005] In order to achieve the above object, according to one aspect of the present invention, there is provided an oxygen production system, comprising:

[0006] An oxygen production component and a main oxygen storage device are interconnected, wherein the oxygen production component has an oxygen production state for producing oxygen from air and a stop state for stopping operation;

[0007] The buffer oxygen reservoir, the oxygen outlet of the buffer oxygen reservoir and the oxygen outlet of the main oxygen reservoir can be selectively opened or closed;

[0008] Among them, when the oxygen production component is in the oxygen production state, the buffer oxygen storage device can be selectively connected or disconnected with the oxygen production component, the oxygen outlet of the main oxygen storage device is opened, and the oxygen outlet of the buffer oxygen storage device is closed; when the oxygen production component is in the stop state, the oxygen outlet of the buffer oxygen storage device is opened.

[0009] Furthermore, the oxygen production system also includes:

[0010] The pressure detection unit is used to detect the pressure value in the main oxygen reservoir; when the pressure value in the main oxygen reservoir is less than the preset pressure value, the buffer oxygen reservoir is disconnected from the oxygen production component; when the pressure value in the main oxygen reservoir is greater than or equal to the preset pressure value, the buffer oxygen reservoir is connected to the oxygen production component to put the buffer oxygen reservoir in an oxygen storage state.

[0011] Furthermore, the oxygen production system has an oxygen production outlet, the oxygen outlet of the main oxygen storage device is connected to or disconnected from the oxygen production outlet through a first branch, and the oxygen outlet of the buffer oxygen storage device can be selectively connected to or disconnected from the oxygen production outlet; the oxygen outlet of the main oxygen storage device is connected to or disconnected from the buffer oxygen storage device through a second branch, so that the buffer oxygen storage device is connected to or disconnected from the oxygen production component through the main oxygen storage device.

[0012] Furthermore, the oxygen production system also includes:

[0013] a flow valve, the flow valve being arranged at the oxygen outlet of the main oxygen reservoir, the flow valve having a first flow outlet and a second flow outlet, the first flow outlet being connected to the first branch, and the second flow outlet being connected to the second branch; and / or,

[0014] A first one-way valve is arranged on the first branch so that the flow on the first branch flows from the oxygen outlet of the main oxygen storage device to the oxygen production outlet; and / or,

[0015] The second one-way valve is arranged on the second branch so that the flow on the second branch flows from the oxygen outlet of the main oxygen storage device to the buffer oxygen storage device.

[0016] Further, the buffer oxygen storage device comprises a storage container, the storage container has a storage cavity for storing liquid oxygen and / or oxygen, and the oxygen outlet of the buffer oxygen storage device is connected to the storage cavity; the buffer oxygen storage device also comprises:

[0017] a compression structure, disposed on the storage container, for compressing the oxygen flowing out of the oxygen outlet of the buffer oxygen storage device; and / or,

[0018] a flow control member, arranged at the oxygen outlet of the buffer oxygen storage device, to adjust the oxygen flow rate flowing out of the buffer oxygen storage device; and / or,

[0019] The mass detection unit is arranged on the buffer oxygen storage device, and is used to detect the mass consumption value of the liquid oxygen stored in the storage chamber.

[0020] Furthermore, the storage container is provided with a main oxygen inlet and a supplementary oxygen inlet at intervals, and the main oxygen inlet is used to communicate with the oxygen production component; the buffer oxygen storage device also includes:

[0021] The oxygen enrichment module is arranged at the supplementary oxygen inlet, and the supplementary oxygen inlet can be selectively opened or closed; when the supplementary oxygen inlet is opened, the oxygen enrichment module is used to convert the air flowing through the oxygen enrichment module into oxygen.

[0022] Furthermore, the oxygen production system further includes a supplementary air intake branch, one end of which is used to introduce air, and the other end of which is used to communicate with the supplementary oxygen inlet port; the oxygen production system further includes:

[0023] A third one-way valve is arranged on the supplementary air intake branch to allow the fluid in the supplementary air intake branch to flow from one end of the supplementary air intake branch to the other end of the supplementary air intake branch; and / or,

[0024] A dehumidifying element is arranged on the supplementary air inlet branch; and / or,

[0025] The filter element is arranged on the supplementary air intake branch.

[0026] According to another aspect of the present invention, there is provided an air conditioning system, comprising:

[0027] The oxygen production system provided above;

[0028] The air conditioner indoor unit is provided with an oxygen port, and the oxygen outlet of the buffer oxygen storage device of the oxygen production system and the oxygen outlet of the main oxygen storage device of the oxygen production system can be selectively connected or disconnected with the oxygen port.

[0029] Further, the indoor unit of the air conditioner comprises a volute, and the buffer oxygen storage device is arranged at the volute; or,

[0030] The air conditioning system further comprises an air conditioning outdoor unit, and the buffer oxygen storage device is arranged in an outdoor unit casing of the air conditioning outdoor unit.

[0031] According to another aspect of the present invention, a control method is provided, which is applicable to the oxygen production system provided above, and the control method comprises:

[0032] Get the working mode of the oxygen generation system;

[0033] When the working mode of the oxygen production system is the conventional oxygen production mode, the oxygen production component of the oxygen production system is controlled to be in the oxygen production state and the produced oxygen is stored in the main oxygen storage device of the oxygen production system, and the oxygen outlet of the main oxygen storage device is controlled to be opened and the oxygen outlet of the buffer oxygen storage device is controlled to be closed;

[0034] When the working mode of the oxygen production system is the night oxygen production mode, the oxygen production component is controlled to be in a stopped state, and the oxygen outlet of the buffer oxygen storage device is controlled to be opened.

[0035] Furthermore, when the working mode of the oxygen production system is the night oxygen production mode, the control method further includes:

[0036] Obtaining a mass consumption value M0 of liquid oxygen stored in the buffer oxygen storage device;

[0037] The oxygen outflow and inflow of the buffer oxygen storage device are controlled according to the mass consumption value M0.

[0038] Furthermore, the oxygen outflow and oxygen inflow of the buffer oxygen storage device are controlled according to the mass consumption value M0, including:

[0039] When the mass consumption value M0 is greater than or equal to the first preset mass value M1, the oxygen flowing out of the oxygen outlet of the buffer oxygen storage device is pressurized; and / or,

[0040] When the mass consumption value M0 is greater than or equal to the second preset mass value M2, the buffer oxygen reservoir is connected to the main oxygen reservoir so that the oxygen in the main oxygen reservoir is replenished into the buffer oxygen reservoir; and / or,

[0041] When the mass consumption value M0 is greater than or equal to the third preset mass value M3, the oxygen enrichment module of the buffer oxygen storage is controlled to operate so as to produce oxygen and store it in the buffer oxygen storage.

[0042] Furthermore, the oxygen outflow and oxygen inflow of the buffer oxygen storage device are controlled according to the mass consumption value M0, including:

[0043] When the mass consumption value M0 is greater than or equal to the second preset mass value M2, the remaining oxygen in the main oxygen reservoir is obtained;

[0044] When the residual oxygen in the main oxygen reservoir is greater than the preset residual oxygen, the buffer oxygen reservoir is connected to the main oxygen reservoir so that the oxygen in the main oxygen reservoir is replenished into the buffer oxygen reservoir;

[0045] When the oxygen residual amount in the main oxygen reservoir is less than or equal to the preset oxygen residual amount, the buffer oxygen reservoir and the main oxygen reservoir are disconnected.

[0046] Furthermore, the control method further includes:

[0047] Obtaining the current time point, and comparing the current time point with the preset oxygenation time point;

[0048] When the current time point reaches the preset oxygen filling time point, the oxygen storage capacity of the buffer oxygen storage device and the working mode of the oxygen production system are obtained;

[0049] When the oxygen storage capacity of the buffer oxygen storage device is less than the preset oxygen storage capacity and the oxygen production system is in the oxygen production stop mode, the oxygen production component of the oxygen production system is controlled to start so as to fill the buffer oxygen storage device with oxygen through the oxygen production component.

[0050] By applying the technical solution of the present invention, the oxygen production component can be put into an oxygen production state without the need for a quiet environment, and oxygen can be stored through the main oxygen reservoir and released at the required flow rate. At this time, the buffer oxygen reservoir and the oxygen production component can be selectively connected or disconnected, so that the buffer oxygen reservoir can be filled with oxygen through the oxygen production component at the same time for subsequent use. When a quiet environment is required, the oxygen production component is put into a stopped state. At the same time, the oxygen outlet of the buffer oxygen reservoir is opened to release oxygen. In this process, since the oxygen production component is not working, oxygen production noise will naturally not be generated, which helps to keep the oxygen production system outputting oxygen while keeping the oxygen production system quiet. Therefore, the technical problem of the oxygen production system in the prior art having a high noise level during the oxygen production process can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0052] Figure 1 It shows a schematic structural diagram of an oxygen production system provided according to Embodiment 1 of the present invention;

[0053] Figure 2 A schematic structural diagram of an oxygen production system provided according to a second embodiment of the present invention is shown.

[0054] The above drawings include the following reference numerals:

[0055] 10. Oxygen production component; 101. Air compressor; 102. Muffler; 103. Nitrogen exhaust port; 104. Switching valve; 105. First molecular sieve oxygen production module; 106. Second molecular sieve oxygen production module;

[0056] 20. Main oxygen reservoir;

[0057] 30. Buffer oxygen storage device;

[0058] 40. Oxygen production outlet;

[0059] 50. first branch; 51. first one-way valve;

[0060] 60. Second branch; 61. Second one-way valve;

[0061] 70. Flow valve;

[0062] 80. Supplementary air intake branch; 81. Third one-way valve;

[0063] 90. Dehumidification components;

[0064] 100. Filter element;

[0065] 110, first connecting branch;

[0066] 120, second connecting branch;

[0067] 130, fourth one-way valve;

[0068] 140. The third branch; 141. The fifth one-way valve. DETAILED DESCRIPTION

[0069] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0070] like Figure 1 As shown, the first embodiment of the present invention provides an oxygen production system, which includes an oxygen production component 10 and a main oxygen storage device 20 that are interconnected. The oxygen production component 10 has an oxygen production state for producing air into oxygen and a stop state for stopping operation. The oxygen production system also includes a buffer oxygen storage device 30, and the oxygen outlet of the buffer oxygen storage device 30 and the oxygen outlet of the main oxygen storage device 20 can be selectively opened or closed. Among them, when the oxygen production component 10 is in the oxygen production state, the buffer oxygen storage device 30 can be selectively connected or disconnected with the oxygen production component 10, the oxygen outlet of the main oxygen storage device 20 is opened, and the oxygen outlet of the buffer oxygen storage device 30 is closed; when the oxygen production component 10 is in the stop state, the oxygen outlet of the buffer oxygen storage device 30 is opened.

[0071] By using the oxygen production system provided in the first embodiment of the present invention, the oxygen production component 10 can be placed in an oxygen production state without the need for a quiet environment, and oxygen can be stored and released at a required flow rate through the main oxygen reservoir 20. At this time, the buffer oxygen reservoir 30 can be selectively connected or disconnected with the oxygen production component 10, so that the buffer oxygen reservoir 30 can be filled with oxygen through the oxygen production component 10 at the same time for subsequent use. When a quiet environment is required, the oxygen production component 10 is placed in a stopped state. At the same time, the oxygen outlet of the buffer oxygen reservoir 30 is opened to release oxygen. In this process, since the oxygen production component 10 is not working, oxygen production noise will naturally not be generated, which helps to keep the oxygen production system continuously output oxygen while keeping the oxygen production system quiet. Therefore, the oxygen production system provided in this embodiment can solve the technical problem of the oxygen production system in the prior art having a large noise during the oxygen production process.

[0072] Specifically, the reason why both the main oxygen reservoir 20 and the buffer oxygen reservoir 30 need to be provided at the same time is that if only a single oxygen reservoir is provided, in order to ensure normal oxygen supply while storing oxygen, the internal pressure of the single oxygen reservoir needs to be maintained at a relatively high pressure level, or the internal storage chamber of the single oxygen reservoir needs to be large enough. In either case, the requirements for the assembly conditions of the oxygen reservoir will be increased, and it is not suitable for a general household environment.

[0073] Specifically, the oxygen production system further includes a pressure detection unit, which is used to detect the pressure value in the main oxygen reservoir 20; when the pressure value in the main oxygen reservoir 20 is less than the preset pressure value, the buffer oxygen reservoir 30 is disconnected from the oxygen production assembly 10; when the pressure value in the main oxygen reservoir 20 is greater than or equal to the preset pressure value, the buffer oxygen reservoir 30 is connected to the oxygen production assembly 10, so that the buffer oxygen reservoir 30 is in the oxygen storage state. With such a structural setting, it can be ensured that the oxygen production assembly 10 gives priority to supplying oxygen to the main oxygen reservoir 20. Since the oxygen production assembly 10 will enter the oxygen production state without requiring a quiet environment, oxygen is mainly released into the room through the main oxygen reservoir 20 at this time, and the oxygen outlet of the buffer oxygen reservoir 30 is closed. Therefore, ensuring that the oxygen production assembly 10 gives priority to supplying oxygen to the main oxygen reservoir 20 can better ensure that when the oxygen production assembly 10 is in the oxygen production state, the indoor oxygen content meets the standard, and the normal conventional oxygen supply of the oxygen production system will not be affected by oxygenating the buffer oxygen reservoir 30.

[0074] Specifically, when the total amount of oxygen in the main oxygen reservoir 20 is less than the AI ​​predicted 1-hour indoor oxygen consumption value, the buffer oxygen reservoir 30 is disconnected from the oxygen production component 10; when the total amount of oxygen in the main oxygen reservoir 20 is greater than or equal to the AI ​​predicted 1-hour indoor oxygen consumption value, the buffer oxygen reservoir 30 is connected to the oxygen production component 10, so that the buffer oxygen reservoir 30 is in an oxygen storage state. With such a structural setting, it can be ensured that the oxygen production component 10 gives priority to supplying oxygen to the main oxygen reservoir 20, so that the total amount of oxygen in the main oxygen reservoir 20 is at least the AI ​​predicted 1-hour indoor oxygen consumption value. Since the oxygen production component 10 will enter the oxygen production state without the need for a quiet environment, oxygen is mainly released into the room through the main oxygen reservoir 20 at this time, and the oxygen outlet of the buffer oxygen reservoir 30 is closed. Therefore, ensuring that the oxygen production component 10 gives priority to supplying oxygen to the main oxygen reservoir 20 can better ensure that the indoor oxygen content meets the standard when the oxygen production component 10 is in the oxygen production state, and the normal conventional oxygen supply of the oxygen production system will not be affected by the oxygen supply to the buffer oxygen reservoir 30.

[0075] Specifically, Figure 2 In the second embodiment of the present invention, the oxygen production component 10 is connected or disconnected with the buffer oxygen storage 30 through the third branch 140. Specifically, the oxygen production system further includes a fifth one-way valve 141, which is arranged on the third branch 140 so that the flow on the third branch 140 flows from the oxygen outlet of the oxygen production component 10 to the buffer oxygen storage 30. With such a structural arrangement, it is possible to prevent the oxygen in the third branch 140 from flowing back to the oxygen production component 10 and affecting the normal oxygen storage of the buffer oxygen storage 30.

[0076] In the above two embodiments, the oxygen production system has an oxygen production outlet 40, the oxygen outlet of the main oxygen reservoir 20 is connected or disconnected with the oxygen production outlet 40 through the first branch 50, and the oxygen outlet of the buffer oxygen reservoir 30 can be selectively connected or disconnected with the oxygen production outlet 40; the oxygen outlet of the main oxygen reservoir 20 is connected or disconnected with the buffer oxygen reservoir 30 through the second branch 60, so that the buffer oxygen reservoir 30 is connected or disconnected with the oxygen production component 10 through the main oxygen reservoir 20. With such a structural setting, the oxygen supply flow path of the oxygen production system can be optimized through the setting of the first branch 50 and the second branch 60, ensuring that the oxygen production component 10 supplies oxygen to the main oxygen reservoir 20 first, and when the oxygen production component 10 is in the oxygen production state, oxygen is supplied to the oxygen production outlet 40 through the main oxygen reservoir 20.

[0077] Specifically, the oxygen production system further includes a flow valve 70, which is arranged at the oxygen outlet of the main oxygen reservoir 20. The flow valve 70 has a first flow outlet and a second flow outlet, the first flow outlet is connected to the first branch 50, and the second flow outlet is connected to the second branch 60. With such a structural arrangement, the flow rate of oxygen flowing from the main oxygen reservoir 20 to the oxygen production outlet 40 can be adjusted through the flow valve 70, and the flow rate of oxygen flowing from the main oxygen reservoir 20 to the buffer oxygen reservoir 30 can also be adjusted through the flow valve 70, so as to facilitate the control of the indoor oxygen content and effectively regulate the indoor oxygen concentration.

[0078] Specifically, the oxygen production system further includes a first one-way valve 51, which is disposed on the first branch 50 so that the flow on the first branch 50 flows from the oxygen outlet of the main oxygen reservoir 20 to the oxygen production outlet 40. With such a structural arrangement, the first one-way valve 51 can be arranged to prevent oxygen from flowing back from the first branch 50 into the main oxygen reservoir 20 when there is insufficient oxygen in the main oxygen reservoir 20, thereby affecting the normal regulation of the indoor oxygen concentration by the oxygen production system.

[0079] Specifically, the oxygen production system further includes a second one-way valve 61, which is arranged on the second branch 60 so that the flow on the second branch 60 flows from the oxygen outlet of the main oxygen reservoir 20 to the buffer oxygen reservoir 30. With such a structural arrangement, the second one-way valve 61 can be arranged to prevent oxygen from flowing back from the second branch 60 to the main oxygen reservoir 20 when there is insufficient oxygen in the main oxygen reservoir 20 or when the internal pressure of the buffer oxygen reservoir 30 is higher than that of the main oxygen reservoir 20, thereby affecting the normal oxygenation of the buffer oxygen reservoir 30 by the main oxygen reservoir 20.

[0080] In the above two embodiments, the buffer oxygen storage 30 includes a storage container, the storage container has a storage cavity for storing liquid oxygen and / or oxygen, and the oxygen outlet of the buffer oxygen storage 30 is connected to the storage cavity. The buffer oxygen storage 30 also includes a compression structure, which is arranged on the storage container, and the compression structure is used to compress the oxygen flowing out through the oxygen outlet of the buffer oxygen storage 30. With such a structural arrangement, when there is not enough oxygen in the storage cavity, the compression structure can be used to compress the oxygen, increase its kinetic energy when it flows out, and enable it to continue to maintain a faster speed to reach the room.

[0081] In the above two embodiments, the buffer oxygen storage device 30 includes a storage container having a storage cavity for storing liquid oxygen and / or oxygen, and the oxygen outlet of the buffer oxygen storage device 30 is connected to the storage cavity. The buffer oxygen storage device 30 also includes a flow control component, which is arranged at the oxygen outlet of the buffer oxygen storage device 30 to adjust the oxygen flow rate flowing out of the buffer oxygen storage device 30. With such a structural arrangement, the oxygen flow rate flowing out of the buffer oxygen storage device 30 can be controlled by the flow control component, so that when oxygen is supplied to the room through the buffer oxygen storage device 30, the indoor oxygen concentration can also be effectively regulated.

[0082] Specifically, the flow control element is a flow control valve.

[0083] In the above two embodiments, the buffer oxygen storage device 30 includes a storage container having a storage cavity for storing liquid oxygen and / or oxygen, and the oxygen outlet of the buffer oxygen storage device 30 is connected to the storage cavity. The buffer oxygen storage device 30 also includes a mass detection unit, which is arranged on the buffer oxygen storage device 30, and the mass detection unit is used to detect the mass consumption value of the liquid oxygen stored in the storage cavity. With such a structural arrangement, the mass consumption value of the liquid oxygen stored in the storage cavity can be detected by the mass detection unit, so that the oxygen outlet state and oxygen intake state of the buffer oxygen storage device 30 can be adjusted according to the detection result, thereby further improving the oxygen supply capacity and oxygen supply effect of the buffer oxygen storage device 30 to the indoor space.

[0084] Specifically, the storage container is provided with a main oxygen inlet and a supplementary oxygen inlet at intervals, and the main oxygen inlet is used to communicate with the oxygen production assembly 10. The buffer oxygen storage 30 also includes an oxygen enrichment module, which is arranged at the supplementary oxygen inlet, and the supplementary oxygen inlet can be selectively opened or closed; when the supplementary oxygen inlet is opened, the oxygen enrichment module is used to convert the air flowing through the oxygen enrichment module into oxygen. With such a structural arrangement, when the oxygen in the storage chamber of the buffer oxygen storage 30 is insufficient, the oxygen enrichment module can be opened to supplement the buffer oxygen storage 30 with oxygen-enriched air.

[0085] Specifically, the oxygen-enriching module is an oxygen-enriching membrane.

[0086] Specifically, the oxygen production system further includes a supplementary air intake branch 80, one end of which is used to introduce air, and the other end of which is used to communicate with the supplementary oxygen inlet. The oxygen production system further includes a third one-way valve 81, which is arranged on the supplementary air intake branch 80 so that the fluid in the supplementary air intake branch 80 flows through one end of the supplementary air intake branch 80 to the other end of the supplementary air intake branch 80. With such a structural arrangement, the arrangement of the third one-way valve 81 can prevent the oxygen stored in the buffer oxygen storage 30 from flowing out through the supplementary air intake branch 80 and affecting the oxygen supply of the buffer oxygen storage 30.

[0087] Specifically, the oxygen production system further includes a supplementary air intake branch 80, one end of which is used to introduce air, and the other end of which is used to communicate with the supplementary oxygen inlet. The oxygen production system further includes a dehumidifier 90, which is arranged on the supplementary air intake branch 80. With such a structural arrangement, the air that will flow into the oxygen enrichment module can be dehumidified by the arrangement of the dehumidifier 90, so as to extend the service life of the oxygen enrichment module and the storage chamber.

[0088] Specifically, the oxygen production system further includes a supplementary air intake branch 80, one end of which is used to introduce air, and the other end of which is used to communicate with the supplementary oxygen inlet. The oxygen production system further includes a filter element 100, which is arranged on the supplementary air intake branch 80. With such a structural arrangement, the air that will flow into the oxygen enrichment module can be filtered through the arrangement of the filter element 100 to filter out impurities in the air, so as to improve the cleanliness of the air, thereby extending the service life of the oxygen enrichment module and the storage chamber.

[0089] In the above two embodiments, after the third one-way valve 81 is opened, the mechanical two-way air compression function of the buffer oxygen storage 30 is enabled, so that the filtered air passes through the oxygen enrichment module, passes through the internal valve body, and enters the storage chamber of the buffer oxygen storage. Through such a setting, when the oxygen inside the buffer oxygen storage 30 is insufficient, the oxygen-enriched air is supplemented.

[0090] Specifically, the buffer oxygen storage 30 has a mechanical two-way air compression function, which can compress and pressurize the oxygen flowing into the storage chamber of the buffer oxygen storage 30, and can also compress and pressurize the oxygen flowing out of the buffer oxygen storage 30. In this way, the oxygen circulation speed can be guaranteed in the case of insufficient oxygen, and the ability of the oxygen production system to control the indoor oxygen concentration can be further improved.

[0091] In the above two embodiments, the oxygen production component 10 includes an air compressor 101, a muffler 102, a nitrogen outlet 103, a switching valve 104, a first molecular sieve oxygen production module 105 and a second molecular sieve oxygen production module 106. The first molecular sieve oxygen production module 105 and the second molecular sieve oxygen production module 106 are respectively connected to the air outlet of the air compressor 101. The muffler 102 is arranged at the air outlet of the air compressor 101. The nitrogen outlet 103, the first molecular sieve oxygen production module 105 and the second molecular sieve oxygen production module 106 are switched with each other through the switching valve 104. The first molecular sieve oxygen production module 105 and the second molecular sieve oxygen production module 106 are both selectively connected or disconnected with the main oxygen storage device 20. When the oxygen production component 10 is in the oxygen production state, the first molecular sieve oxygen production module 105 and the second molecular sieve oxygen production module 106 are both connected to the main oxygen reservoir 20; when the oxygen production component 10 is in the stop state, the first molecular sieve oxygen production module 105 and the second molecular sieve oxygen production module 106 are both disconnected from the main oxygen reservoir 20. The first molecular sieve oxygen production module 105 is connected or disconnected with the main oxygen reservoir 20 through the first connecting branch 110, and the second molecular sieve oxygen production module 106 is connected or disconnected with the main oxygen reservoir 20 through the second connecting branch 120. The oxygen production system also includes a fourth one-way valve 130, which is arranged at the oxygen inlet of the main oxygen reservoir 20. The fourth one-way valve 130 has a first flow inlet and a second flow inlet, the first flow inlet is connected to the first connecting branch 110, and the second flow inlet is connected to the second connecting branch 120. With such a structural arrangement, air can be converted into oxygen through the first molecular sieve oxygen production module 105 and the second molecular sieve oxygen production module 106 and supplied to the main oxygen storage tank 20 .

[0092] In the above two embodiments, the oxygen production system further includes a controller, and the controller is used to control the working state of the oxygen production system.

[0093] Embodiment 3 of the present invention provides an air-conditioning system, which includes the oxygen production system and an air-conditioning indoor unit provided above, the air-conditioning indoor unit has an oxygen port, and the oxygen outlet of the buffer oxygen storage device 30 of the oxygen production system and the oxygen outlet of the main oxygen storage device 20 of the oxygen production system can be selectively connected to or disconnected from the oxygen port.

[0094] By using the air conditioning system provided by the third embodiment of the present invention, the oxygen production component 10 of the oxygen production system can be placed in an oxygen production state when a quiet environment is not required, and oxygen can be stored and released according to the required flow rate through the main oxygen storage device 20 of the oxygen production system. At this time, the buffer oxygen storage device 30 of the oxygen production system can be selectively connected or disconnected with the oxygen production component 10 of the oxygen production system, so that the buffer oxygen storage device 30 of the oxygen production system can be filled with oxygen through the oxygen production component 10 of the oxygen production system at the same time for subsequent use. When a quiet environment is required, the oxygen production component 10 of the oxygen production system is placed in a stopped state. At the same time, the oxygen outlet of the buffer oxygen storage device 30 of the oxygen production system is opened to release oxygen. In this process, since the oxygen production component 10 of the oxygen production system is not working, oxygen production noise will naturally not be generated, which helps to keep the oxygen production system continuously output oxygen while the oxygen production system remains quiet. In this way, after the user turns on the air conditioner, different working modes can be selected according to the requirements for environmental quietness, which can not only ensure the indoor oxygen concentration, but also take into account the noise generated by oxygen production. Therefore, the air conditioning system provided in this embodiment can solve the technical problem of high noise in the oxygen production system in the prior art during the oxygen production process.

[0095] Specifically, the oxygen production outlet 40 of the oxygen production system can be selectively connected or disconnected with the oxygen port of the air-conditioning indoor unit.

[0096] Specifically, the air-conditioning indoor unit includes a volute, and the buffer oxygen storage device 30 is arranged at the volute. With such a structural arrangement, since the fan of the air-conditioning indoor unit is arranged in the volute, the buffer oxygen storage device 30 is arranged at the volute, and the negative pressure generated by the rotation of the fan can be used to produce a certain oxygen absorption effect on the oxygen flowing out of the buffer oxygen storage device 30, thereby reducing the oxygen pressurization demand of the oxygen production system for oxygen, and also reducing the design pressure of the buffer oxygen storage device 30. Specifically, the design pressure of the buffer oxygen storage device 30 refers to the maximum pressure of oxygen in the oxygen production system. The design pressure is related to the volume and oxygen storage capacity of the oxygen storage device. When the volume of the oxygen storage device is limited by the structure, the larger the required oxygen storage capacity, the larger the design pressure. Specifically, the buffer oxygen storage device 30 is arranged at the air inlet or outlet of the volute.

[0097] Specifically, the air conditioning system further comprises an air conditioning outdoor unit, and the buffer oxygen storage device 30 is arranged in the outdoor unit housing of the air conditioning outdoor unit. With such a structural arrangement, the overall assembly of the air conditioning system can be facilitated.

[0098] Specifically, the buffer oxygen storage device 30 is arranged on the installation base, and the air conditioner indoor unit and the air conditioner outdoor unit are arranged on both sides of the installation base. Specifically, the installation base is a wall. With such a structural arrangement, the pressure loss during the oxygen delivery process can be reduced.

[0099] Embodiment 4 of the present invention provides a control method, which is applicable to the oxygen production system provided above, and the control method includes: obtaining the working mode of the oxygen production system; when the working mode of the oxygen production system is the conventional oxygen production mode, controlling the oxygen production component 10 of the oxygen production system to be in the oxygen production state and storing the produced oxygen in the main oxygen storage device 20 of the oxygen production system, controlling the oxygen outlet of the main oxygen storage device 20 to be opened and the oxygen outlet of the buffer oxygen storage device 30 to be closed; when the working mode of the oxygen production system is the nighttime oxygen production mode, controlling the oxygen production component 10 to be in the stopped state, and controlling the oxygen outlet of the buffer oxygen storage device 30 to be opened.

[0100] By adopting the control method provided in the fourth embodiment of the present invention, the working mode of the oxygen production system can be set to the conventional oxygen production mode when a quiet environment is not required, even if the oxygen production component 10 of the oxygen production system is in the oxygen production state, and the oxygen is stored and released according to the required flow rate through the main oxygen storage device 20 of the oxygen production system. At this time, the buffer oxygen storage device 30 of the oxygen production system can be selectively connected or disconnected with the oxygen production component 10 of the oxygen production system, so that the buffer oxygen storage device 30 of the oxygen production system can be filled with oxygen through the oxygen production component 10 of the oxygen production system at the same time for subsequent use. When a quiet environment is required, the working mode of the oxygen production system is set to the night oxygen production mode, even if the oxygen production component 10 of the oxygen production system is in a stopped state. At the same time, the oxygen outlet of the buffer oxygen storage device 30 of the oxygen production system is opened to release oxygen. In this process, since the oxygen production component 10 of the oxygen production system is not working, there will naturally be no oxygen production noise, which helps to keep the oxygen production system in a quiet state. In this way, after the user turns on the oxygen production system, different working modes can be selected according to the requirements for environmental quietness, which can not only ensure the indoor oxygen concentration, but also take into account the noise generated by oxygen production. Therefore, the control method provided in this embodiment can solve the technical problem of high noise in the oxygen production system in the prior art during the oxygen production process.

[0101] Specifically, the control method includes: obtaining the current time; adjusting the working mode of the oxygen production system according to the obtained current time; when the current time is between 22:00 and 8:00, the working mode of the oxygen production system is set to the night oxygen production mode; when the current time is between 8:00 and 22:00, the working mode of the oxygen production system is set to the conventional oxygen production mode. With such a control method, the working mode of the oxygen production system can be directly adjusted according to the time without manual adjustment by the user, thereby improving the intelligence of the oxygen production system and the user experience. Alternatively, in another embodiment, the control method may include obtaining the corresponding working mode of the oxygen production system according to the working mode signal of the oxygen production system selected by the user.

[0102] Specifically, when the working mode of the oxygen production system is the night oxygen production mode, the control method further includes: obtaining the mass consumption value M0 of the liquid oxygen stored in the buffer oxygen storage 30; and controlling the oxygen output and oxygen intake of the buffer oxygen storage 30 according to the mass consumption value M0. By adopting such a method, the oxygen storage situation inside the buffer oxygen storage 30 can be obtained according to the mass consumption value M0 of the liquid oxygen stored in the buffer oxygen storage 30, so that the oxygen output and oxygen intake of the buffer oxygen storage 30 can be adjusted in time according to the oxygen storage situation inside the buffer oxygen storage 30. Such a setting can effectively improve the ability of the buffer oxygen storage 30 to regulate the indoor oxygen concentration and the oxygen supply capacity.

[0103] Specifically, the method for controlling the oxygen outlet and oxygen inlet of the buffer oxygen storage 30 according to the mass consumption value M0 includes: when the mass consumption value M0 is greater than or equal to the first preset mass value M1, the oxygen flowing out of the oxygen outlet of the buffer oxygen storage 30 is pressurized; when the mass consumption value M0 is less than the first preset mass value M1, the oxygen in the buffer oxygen storage 30 is allowed to flow out naturally from the oxygen outlet of the buffer oxygen storage 30. By adopting such a method, when there is not enough oxygen in the storage chamber, the kinetic energy of the oxygen when it flows out can be increased by pressurizing the oxygen, so that it can continue to reach the room at a faster speed.

[0104] Specifically, the method for controlling the oxygen output and oxygen intake of the buffer oxygen storage 30 according to the mass consumption value M0 also includes: when the mass consumption value M0 is greater than or equal to the second preset mass value M2, the buffer oxygen storage 30 is connected to the main oxygen storage 20 so that the oxygen in the main oxygen storage 20 is supplemented to the buffer oxygen storage 30; when the mass consumption value M0 is less than the second preset mass value M2, the buffer oxygen storage 30 is disconnected from the main oxygen storage 20. With this method, when the oxygen in the storage chamber is not sufficient, the buffer oxygen storage 30 can be supplemented with the oxygen stored in the main oxygen storage 20.

[0105] Specifically, the method for controlling the oxygen output and oxygen intake of the buffer oxygen storage 30 according to the mass consumption value M0 also includes: when the mass consumption value M0 is greater than or equal to the third preset mass value M3, controlling the oxygen enrichment module of the buffer oxygen storage 30 to work, so as to produce oxygen and store it in the buffer oxygen storage 30; when the mass consumption value M0 is less than the third preset mass value M3, making the oxygen enrichment module of the buffer oxygen storage 30 in a closed state. With this method, when the oxygen in the storage chamber is not sufficient, the oxygen enrichment module can be used to supplement a certain amount of oxygen-enriched air for the buffer oxygen storage 30.

[0106] Specifically, the method for controlling the oxygen outlet and oxygen intake of the buffer oxygen storage 30 according to the mass consumption value M0 also includes: when the mass consumption value M0 is less than the first preset mass value M1, the oxygen in the buffer oxygen storage 30 is allowed to flow out naturally from the oxygen outlet of the buffer oxygen storage 30; when the mass consumption value M0 is greater than or equal to the first preset mass value M1 and less than the second preset mass value M2, the oxygen flowing out of the oxygen outlet of the buffer oxygen storage 30 is pressurized; when the mass consumption value M0 is greater than or equal to the second preset mass value M2 and less than the third preset mass value M3, The oxygen flowing out of the oxygen outlet of the buffer oxygen storage 30 is pressurized, and the buffer oxygen storage 30 is connected with the main oxygen storage 20, so that the oxygen in the main oxygen storage 20 is supplemented into the buffer oxygen storage 30; when the mass consumption value M0 is greater than or equal to the third preset mass value M3, the oxygen flowing out of the oxygen outlet of the buffer oxygen storage 30 is pressurized, and the buffer oxygen storage 30 is connected with the main oxygen storage 20, so that the oxygen in the main oxygen storage 20 is supplemented into the buffer oxygen storage 30, and the oxygen enrichment module of the buffer oxygen storage 30 is controlled to work, so as to produce oxygen and store it in the buffer oxygen storage 30. Among them, M1<M2<M3. By adopting such a method, according to the consumption of liquid oxygen in the buffer oxygen storage 30, the means of pressurizing or replenishing oxygen for the buffer oxygen storage 30 can be gradually enhanced, thereby effectively improving the ability of the buffer oxygen storage 30 to supply oxygen to the room.

[0107] In this embodiment, the method for controlling the oxygen output and oxygen intake of the buffer oxygen storage 30 according to the mass consumption value M0 also includes: when the mass consumption value M0 is greater than or equal to the second preset mass value M2, the oxygen remaining in the main oxygen storage 20 is obtained; when the oxygen remaining in the main oxygen storage 20 is greater than the preset oxygen remaining, the buffer oxygen storage 30 is connected to the main oxygen storage 20 so that the oxygen in the main oxygen storage 20 is supplemented to the buffer oxygen storage 30; when the oxygen remaining in the main oxygen storage 20 is less than or equal to the preset oxygen remaining, the buffer oxygen storage 30 is disconnected from the main oxygen storage 20. With this method, when the oxygen in the main oxygen storage 20 is insufficient, the main oxygen storage 20 can be stopped from replenishing the buffer oxygen storage 30 in time to avoid damage to the oxygen supply capacity of the main oxygen storage 20 in the conventional oxygen supply mode.

[0108] Specifically, the preset oxygen surplus can be 0. In this way, when the oxygen in the main oxygen reservoir 20 is consumed, the connecting branch between the buffer oxygen reservoir 30 and the main oxygen reservoir 20 can be disconnected in time to extend the service life of the main oxygen reservoir 20.

[0109] In this embodiment, the control method further includes: obtaining the current time point, comparing the current time point with the preset oxygen filling time point; when the current time point reaches the preset oxygen filling time point, obtaining the oxygen storage capacity of the buffer oxygen storage device 30 and the working mode of the oxygen production system; when the oxygen storage capacity of the buffer oxygen storage device 30 is less than the preset oxygen storage capacity and the oxygen production system is in the oxygen production stop mode, controlling the oxygen production component 10 of the oxygen production system to start, so as to fill the buffer oxygen storage device 30 with oxygen through the oxygen production component 10. With such a method, it is convenient to make the oxygen storage capacity in the buffer oxygen storage device 30 greater than or equal to the preset oxygen storage capacity before the user falls asleep, and the preset oxygen storage capacity can generally provide the user with all oxygen consumption during the sleep period.

[0110] Specifically, the preset oxygen filling time for the buffer oxygen storage device 30 may be 30 minutes, and the preset oxygen storage capacity may be 240 liters (calculated based on the oxygen consumption of 2 adults during 8 hours of sleep).

[0111] Specifically, when the oxygen production system is turned off, the method for detecting the oxygen remaining in the buffer oxygen storage 30 includes: obtaining the current time, and when the current time is the preset oxygen filling time point, detecting the oxygen remaining in the buffer oxygen storage 30. Specifically, the preset oxygen filling time point is the time point before the user falls asleep, and the time point when the user generally falls asleep is 22:00, so the preset oxygen filling time point can be set to between 21:00-21:30 (including 21:00 and 21:30).

[0112] Specifically, the sources of oxygen in the buffer oxygen storage 30 include two aspects. One is the oxygen produced by the oxygen production component 10 when the oxygen production component 10 is operating normally; the other is when the oxygen production component 10 is turned off. When the oxygen production system automatically detects that the oxygen content in the buffer oxygen storage 30 is insufficient, the oxygen production system automatically controls the air compressor 101 to turn on, so that the oxygen production component 10 is connected to the buffer oxygen storage 30 to replenish oxygen to the buffer oxygen storage 30.

[0113] Specifically, when the user turns on the night oxygen production mode at night, or automatically enters the night oxygen production mode, the air compressor 101 and the molecular sieve oxygen production tower (equivalent to the first molecular sieve oxygen production module 105 and the second molecular sieve oxygen production module 106) are not running, reducing the operating noise and power. The fourth one-way valve 130 and the first one-way valve 51 are closed, that is, the conventional oxygen production channel is closed. The buffer oxygen storage device 30 is opened, and the liquid oxygen stored during the period is depressurized by the built-in flow control valve, and then enters the room in the form of high-concentration gas through the indoor unit oxygen port to control the indoor oxygen concentration.

[0114] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: at night, the air compressor and the molecular sieve oxygen production module do not operate, which greatly reduces the operating noise and power of the outdoor unit, and at the same time eliminates the discontinuous sound generated by the molecular sieve nitrogen release device, thereby achieving noise control.

[0115] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0116] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0117] In the description of the present application, it should be understood 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, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0118] 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.

[0119] 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. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0120] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oxygen production system, characterized in that: include: An oxygen production component (10) and a main oxygen storage device (20) are interconnected, wherein the oxygen production component (10) has an oxygen production state for producing oxygen from air and a stop state for stopping operation; A buffer oxygen storage device (30), wherein the oxygen outlet of the buffer oxygen storage device (30) and the oxygen outlet of the main oxygen storage device (20) can be selectively opened or closed; Wherein, when the oxygen production component (10) is in the oxygen production state, the buffer oxygen storage device (30) can be selectively connected to or disconnected from the oxygen production component (10), the oxygen outlet of the main oxygen storage device (20) is opened, and the oxygen outlet of the buffer oxygen storage device (30) is closed; when the oxygen production component (10) is in the stop state, the oxygen outlet of the buffer oxygen storage device (30) is opened; The oxygen production system has an oxygen production outlet (40); the oxygen outlet of the main oxygen storage device (20) is connected to or disconnected from the oxygen production outlet (40) via a first branch (50); the oxygen outlet of the buffer oxygen storage device (30) can be selectively connected to or disconnected from the oxygen production outlet (40); the oxygen outlet of the main oxygen storage device (20) is connected to or disconnected from the buffer oxygen storage device (30) via a second branch (60), so that the buffer oxygen storage device (30) is connected to or disconnected from the oxygen production assembly (10) via the main oxygen storage device (20).

2. The oxygen production system according to claim 1, characterized in that: The oxygen production system also includes: The pressure detection unit is used to detect the pressure value in the main oxygen storage device (20); when the pressure value in the main oxygen storage device (20) is less than a preset pressure value, the buffer oxygen storage device (30) is disconnected from the oxygen production component (10); when the pressure value in the main oxygen storage device (20) is greater than or equal to the preset pressure value, the buffer oxygen storage device (30) is connected to the oxygen production component (10), so that the buffer oxygen storage device (30) is in an oxygen storage state.

3. The oxygen production system according to claim 1, characterized in that: The oxygen production system also includes: a flow valve (70), the flow valve (70) being arranged at the oxygen outlet of the main oxygen reservoir (20), the flow valve (70) having a first flow outlet and a second flow outlet, the first flow outlet being in communication with the first branch (50), and the second flow outlet being in communication with the second branch (60); and / or, a first one-way valve (51) disposed on the first branch (50) so that the flow on the first branch (50) flows from the oxygen outlet of the main oxygen storage device (20) to the oxygen production outlet (40); and / or The second one-way valve (61) is arranged on the second branch (60) so that the flow on the second branch (60) flows from the oxygen outlet of the main oxygen storage device (20) to the buffer oxygen storage device (30).

4. The oxygen production system according to claim 1, characterized in that: The buffer oxygen storage device (30) comprises a storage container, wherein the storage container has a storage cavity for storing liquid oxygen and / or oxygen, and an oxygen outlet of the buffer oxygen storage device (30) is in communication with the storage cavity; the buffer oxygen storage device (30) further comprises: a compression structure, arranged on the storage container, the compression structure being used to compress the oxygen flowing out through the oxygen outlet of the buffer oxygen storage device (30); and / or, a flow control member, arranged at the oxygen outlet of the buffer oxygen storage device (30) to adjust the flow rate of oxygen flowing out of the buffer oxygen storage device (30); and / or, A mass detection unit is arranged on the buffer oxygen storage device (30), and is used to detect the mass consumption value of the liquid oxygen stored in the storage chamber.

5. The oxygen production system according to claim 4, characterized in that: The storage container is provided with a main oxygen inlet and a supplementary oxygen inlet at intervals, the main oxygen inlet being used to communicate with the oxygen production assembly (10); the buffer oxygen storage device (30) further comprising: The oxygen enrichment module is arranged at the supplementary oxygen inlet, and the supplementary oxygen inlet can be selectively opened or closed; when the supplementary oxygen inlet is opened, the oxygen enrichment module is used to convert the air flowing through the oxygen enrichment module into oxygen.

6. The oxygen production system according to claim 5, characterized in that: The oxygen production system further comprises a supplementary air intake branch (80), one end of the supplementary air intake branch (80) being used to introduce air, and the other end of the supplementary air intake branch (80) being used to communicate with the supplementary oxygen inlet port; the oxygen production system further comprises: a third one-way valve (81) disposed on the supplementary air intake branch (80) so as to allow the fluid in the supplementary air intake branch (80) to flow through one end of the supplementary air intake branch (80) to the other end of the supplementary air intake branch (80); and / or, a dehumidifying element (90), arranged on the supplementary air intake branch (80); and / or, A filter element (100) is arranged on the supplementary air intake branch (80).

7. An air conditioning system, characterized in that: include: The oxygen production system according to any one of claims 1 to 6; An air-conditioning indoor unit, the air-conditioning indoor unit having an oxygen port, and the oxygen outlet of the buffer oxygen storage device (30) of the oxygen production system and the oxygen outlet of the main oxygen storage device (20) of the oxygen production system can be selectively connected to or disconnected from the oxygen port.

8. The air conditioning system according to claim 7, characterized in that: The air conditioner indoor unit comprises a volute, and the buffer oxygen storage device (30) is arranged at the volute; or, The air conditioning system further comprises an air conditioning outdoor unit, and the buffer oxygen storage device (30) is arranged in an outdoor unit casing of the air conditioning outdoor unit.

9. A control method, characterized in that: Applicable to the oxygen production system according to any one of claims 1 to 6, the control method comprises: Obtaining the working mode of the oxygen production system; When the working mode of the oxygen production system is the conventional oxygen production mode, the oxygen production component of the oxygen production system is controlled to be in an oxygen production state and the produced oxygen is stored in a main oxygen storage device of the oxygen production system, and the oxygen outlet of the main oxygen storage device is controlled to be opened and the oxygen outlet of the buffer oxygen storage device is controlled to be closed; When the working mode of the oxygen production system is the nighttime oxygen production mode, the oxygen production component is controlled to be in a stopped state, and the oxygen outlet of the buffer oxygen storage device is controlled to be opened.

10. The control method according to claim 9, characterized in that: When the working mode of the oxygen production system is a nighttime oxygen production mode, the control method further includes: Obtaining a mass consumption value M0 of liquid oxygen stored in the buffer oxygen storage device; The oxygen outflow and oxygen inflow of the buffer oxygen storage device are controlled according to the mass consumption value M0.

11. The control method according to claim 10, characterized in that: The controlling of the oxygen output and oxygen intake of the buffer oxygen storage device according to the mass consumption value M0 includes: When the mass consumption value M0 is greater than or equal to the first preset mass value M1, the oxygen flowing out of the oxygen outlet of the buffer oxygen storage device is pressurized; and / or, When the mass consumption value M0 is greater than or equal to the second preset mass value M2, the buffer oxygen storage is connected to the main oxygen storage so that the oxygen in the main oxygen storage is replenished into the buffer oxygen storage; and / or, When the mass consumption value M0 is greater than or equal to the third preset mass value M3, the oxygen enrichment module of the buffer oxygen storage is controlled to operate so as to produce oxygen and store it in the buffer oxygen storage.

12. The control method according to claim 10, characterized in that: The controlling of the oxygen output and oxygen intake of the buffer oxygen storage device according to the mass consumption value M0 includes: When the mass consumption value M0 is greater than or equal to a second preset mass value M2, obtaining the oxygen remaining in the main oxygen reservoir; When the residual oxygen in the main oxygen reservoir is greater than the preset residual oxygen, the buffer oxygen reservoir is connected to the main oxygen reservoir so that the oxygen in the main oxygen reservoir is replenished into the buffer oxygen reservoir; When the oxygen residual amount in the main oxygen reservoir is less than or equal to the preset oxygen residual amount, the buffer oxygen reservoir and the main oxygen reservoir are disconnected.

13. The control method according to claim 9, characterized in that: The control method further comprises: Obtaining a current time point, and comparing the current time point with a preset oxygenation time point; When the current time point reaches the preset oxygen filling time point, obtaining the oxygen storage capacity of the buffer oxygen storage device and the working mode of the oxygen production system; When the oxygen storage capacity of the buffer oxygen storage device is less than the preset oxygen storage capacity and the oxygen production system is in the oxygen production stop mode, the oxygen production component of the oxygen production system is controlled to start so as to fill the buffer oxygen storage device with oxygen through the oxygen production component.

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