Oxygen generating device, oxygen generating air conditioner and control method

Abstract

This application discloses an oxygen generating device, comprising: an oxygen generating unit having an airflow inlet and an airflow outlet; a filtration unit including multiple independent filtration channels, each filtration channel having a filtration state communicating with the airflow inlet and a clean state communicating with the airflow outlet, wherein at least one filtration channel is in the filtration state, and at least one of the remaining filtration channels is in the clean state, the remaining filtration channels being those not in the filtration state; and a switching mechanism capable of switching the filtration channel in the filtration state to the clean state, and / or switching the filtration channel in the clean state to the filtration state. This application embodiment, when the filtration unit is installed in an outdoor environment, can reduce the frequency of filter replacement by the user, extend the service life of the filter unit, and improve the user experience.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and more specifically, to an oxygen generating device, an oxygen-generating air conditioner, and a control method. Background Technology

[0002] Existing oxygen-generating air conditioners using molecular sieves have the oxygen generation unit located outdoors, requiring high air purity. Current solutions typically involve installing a filter before the air enters the oxygen generation unit. The air must first pass through the filter, then through pipes to the molecular sieve, and finally, the output oxygen reaches the indoor unit.

[0003] However, simple filtration devices, such as those with added filter channels, have the following problems: if the filtration device is installed outdoors, it is prone to getting dirty and clogged after long-term use, and it is inconvenient to replace; if the filtration device is installed indoors, the gas supply pipe needs to first enter the room from the outside, pass through the filtration device, then go back outside to the oxygen generator, and finally enter the room again. The gas supply pipe is long and needs to pass through the wall multiple times, requiring a large wall penetration hole, which affects the user experience. Summary of the Invention

[0004] This application provides an oxygen generating device, an oxygen generating air conditioner, and a control method to at least solve the technical problem that the filter device of the oxygen generating air conditioner is difficult to replace and has a short service life when installed outdoors, while the gas transmission pipeline is long and needs to pass through the wall multiple times when installed indoors.

[0005] According to a first aspect of the embodiments of this application, an oxygen generating device is provided, the oxygen generating device comprising:

[0006] The oxygen generation unit has an airflow inlet and an airflow outlet;

[0007] The filtration unit includes multiple independent filtration channels. Each filtration channel has a filtration state connected to the airflow inlet and a clean state connected to the airflow outlet. The filtration channel in the filtration state filters the airflow flowing towards the airflow inlet, and the filtration channel in the clean state is cleaned by the airflow flowing out of the airflow outlet. At least one of the multiple filtration channels is in the filtration state, and at least one of the remaining filtration channels is in the clean state. The remaining filtration channels are the filtration channels that are not in the filtration state.

[0008] A switching mechanism that can switch a filter channel in the filtering state to the clean state, and / or switch a filter channel in the clean state to the filtering state.

[0009] In this embodiment, by setting multiple filtration channels in the filtration section of the oxygen generator, the air entering the oxygen generator can be filtered by the filtration channels that are in the filtration state, and the exhaust gas (mainly nitrogen) discharged from the oxygen generator can be used to clean the filtration channels that are in the clean state. Thus, while filtering the airflow entering the oxygen generator, the exhaust gas discharged from the oxygen generator can also be used to self-clean the filtration section. When the filtration section is set in an outdoor environment, the frequency of filtration section replacement by the user can be reduced, the service life of the filtration section can be extended, and the user experience can be improved.

[0010] In conjunction with the first aspect, in one optional implementation of the embodiments of this application, the airflow direction in the filter channel in the filtering state is opposite to the airflow direction in the filter channel in the cleaning state.

[0011] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the plurality of filter channels further includes an idle state that is not connected to both the airflow inlet and the airflow outlet, and at least one of the plurality of filter channels is in an idle state;

[0012] The switching mechanism can switch a filter channel in the filtering state to the clean state, switch a filter channel in the idle state to the filtering state, and switch a filter channel in the clean state to the idle state.

[0013] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the switching mechanism includes a driving mechanism connected to the filter section, and the driving mechanism switches the state of the plurality of filter channels by driving the filter section to move.

[0014] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the filtering part includes a housing and a plurality of filter tubes. The housing has a columnar cavity that penetrates the housing. The plurality of filter tubes are disposed in the columnar cavity and arranged along the circumferential direction of the columnar cavity, and the plurality of filter tubes form the plurality of filtering channels.

[0015] The driving mechanism is connected to the plurality of filter tubes and is used to drive the plurality of filter tubes to move along the circumferential direction of the columnar cavity to switch the state of the plurality of filter channels.

[0016] In conjunction with the first aspect, in one optional implementation of the embodiments of this application, the driving mechanism includes a drive motor, a drive wheel, a first tooth, and a plurality of second teeth;

[0017] The drive motor is connected to the drive wheel, the plurality of filter tubes are arranged along the circumferential direction of the drive wheel, the plurality of second teeth are correspondingly provided on the outer wall surface of the plurality of filter tubes and are arranged along the circumferential direction of the corresponding filter tubes, the second teeth are provided on the inner wall surface of the housing and are arranged along the circumferential direction of the housing, the teeth of the drive wheel mesh with the second teeth, and the second teeth mesh with the first teeth;

[0018] The drive motor drives the drive wheel to rotate, and the drive wheel drives the multiple filter tubes to move along the inner wall of the housing through the first tooth and the multiple second teeth, so as to switch the state of the multiple filter channels.

[0019] According to a second aspect of the present application, an oxygen-generating air conditioner is provided. The oxygen-generating air conditioner includes an indoor unit and an oxygen-generating device proposed in the first aspect of the present application. The indoor unit has an air outlet and an air inlet, and the oxygen-generating device has an oxygen outlet. The oxygen outlet is connected to the air outlet and / or the air inlet, and the oxygen flowing out of the oxygen outlet can enter the room with the air outlet of the indoor unit.

[0020] According to a third aspect of the embodiments of this application, a control method for an oxygen generating device is provided. The control method is applied to the oxygen generating device proposed in the first aspect of the embodiments of this application or to the oxygen-generating air conditioner proposed in the second aspect of the embodiments of this application. The control method includes:

[0021] Determine the baseline air intake volume for the stable operating state of the oxygen generator;

[0022] During the operation of the oxygen generating device, a first real-time air intake volume is determined;

[0023] Determine whether to switch the status of the multiple filter channels based on the first real-time air intake volume and the reference air intake volume;

[0024] The state of the filter channel includes at least a filtering state and a cleaning state.

[0025] In conjunction with the first aspect, in one optional implementation of the embodiments of this application, the oxygen generating unit includes an air compressor, the air inlet of the air compressor is connected to the airflow inlet, different particulate matter concentration ranges correspond to different air compressor frequencies, and the larger the particulate matter concentration range, the lower the air compressor frequency.

[0026] During the operation of the oxygen generating device, the air compressor operates at an air compressor frequency corresponding to the particulate matter concentration.

[0027] In conjunction with the first aspect, in an optional implementation of this application embodiment, determining whether to switch the state of the plurality of filter channels based on the first real-time air intake volume and the reference air intake volume includes:

[0028] The first intake efficiency is determined based on the ratio of the first real-time intake volume to the reference intake volume;

[0029] When the first intake efficiency is less than the first set value, the switching mechanism is controlled to switch the state of the plurality of filter channels.

[0030] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, after the step of controlling the switching mechanism to switch the states of the plurality of filtering channels, the control method further includes:

[0031] Total number of switching attempts;

[0032] If the cumulative number of switching is less than or equal to the set number of switching, return to the step of determining the first real-time air intake volume;

[0033] After the cumulative number of switching operations reaches the set number of switching operations, a second real-time air intake volume is determined, and based on the second real-time air intake volume and the baseline air intake volume, it is determined whether to remind the user to replace the filter.

[0034] In conjunction with the first aspect, in an optional implementation of this application embodiment, determining whether to replace the filter based on the second real-time air intake volume and the reference air intake volume includes:

[0035] The second intake efficiency is determined based on the ratio of the second real-time intake volume to the reference intake volume;

[0036] If the second intake efficiency is less than the second set value, remind the user to replace the filter.

[0037] If the second intake efficiency is greater than or equal to the second set value, the switching count is reset to zero and the process returns to the step of determining the first real-time intake volume.

[0038] In conjunction with the first aspect, in one optional implementation of the embodiments of this application, the reference air intake volume is the maximum theoretical air intake volume of the oxygen generating device;

[0039] The first real-time air intake is the theoretical real-time air intake of the oxygen generating device before the cumulative number of switching times reaches the set number of switching times;

[0040] The second real-time air intake is the theoretical real-time air intake of the oxygen generating device after the cumulative number of switching reaches the set number of switching.

[0041] The theoretical intake volume is a function relating to the intake volume detection value of the oxygen generation unit, the current frequency of the air compressor, and the maximum frequency of the air compressor. The higher the current frequency of the air compressor, the smaller the theoretical intake volume; the higher the intake volume detection value, the larger the theoretical intake volume.

[0042] And / or, the theoretical intake volume satisfies the formula: Q=f0*L / f, where Q is the theoretical intake volume, f0 is the maximum frequency of the air compressor, L is the intake volume detection value, and f is the current frequency of the air compressor. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the oxygen generating device provided in the embodiments of this application.

[0044] Figure 2 This is a structural diagram of the filter section provided in an embodiment of this application.

[0045] Figure 3 This is a structural diagram of the filter section with the end cap removed, provided in an embodiment of this application.

[0046] Figure 4 This is an exploded view of the filter section provided in the embodiment of this application.

[0047] Figure 5 This is a structural diagram of a filter section provided in another embodiment of this application.

[0048] Figure 6 This is one of the control flowcharts of the oxygen generator air conditioner provided in the embodiments of this application.

[0049] Figure 7 This is the second control flowchart of the oxygen generator air conditioner provided in the embodiments of this application.

[0050] Figure 8 This is the third control flowchart of the oxygen generator air conditioner provided in the embodiments of this application.

[0051] Figure 9 This is a control flow diagram of an oxygen generating device provided in a specific example of this application.

[0052] Figure 10 This is a structural block diagram of the control device provided in the embodiments of this application.

[0053] The attached figures are labeled as follows:

[0054] 1. Oxygen generating unit; 11. First molecular sieve; 12. Second molecular sieve; 13. Solenoid valve; 14. Silencer; 15. Radiator; 16. Air compressor; 17. Check valve; 18. Air tank; 2. Filtration unit; 21. Filtration channel; 22. Housing; 221. Cylindrical cavity; 23. End cap; 24. Drive wheel; 200. Communication bus; 300. User interface; 400. External communication interface; 500. Memory. Detailed Implementation

[0055] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0056] It should be understood that "multiple" as mentioned herein refers to two or more. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. In addition, to facilitate a clear description of the technical solutions of the embodiments of this application, the terms "first," "second," etc., are used in the embodiments of this application to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first," "second," etc., do not limit the quantity or execution order, and the terms "first," "second," etc., do not necessarily imply that they are different.

[0057] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0058] Since the oxygen generating unit of current oxygen-generating air conditioners is usually located outdoors, and the airflow entering the oxygen generating unit needs to be filtered first, placing the filter of the oxygen generating unit outdoors makes it inconvenient for users to replace the filter after its filtration capacity decreases. Placing the filter of the oxygen generating unit indoors will result in a longer air intake path for the oxygen generating unit.

[0059] To address the above technical problems, this embodiment proposes an oxygen generating device, which includes:

[0060] The oxygen generation unit has an airflow inlet and an airflow outlet;

[0061] The filtration unit includes multiple independent filtration channels. Each filtration channel has a filtration state connected to an airflow inlet and a clean state connected to an airflow outlet. The filtration channel in the filtration state filters the airflow flowing toward the airflow inlet, and the filtration channel in the clean state is cleaned by the airflow flowing out of the airflow outlet. At least one of the multiple filtration channels is in the filtration state, and at least one of the remaining filtration channels is in the clean state. The remaining filtration channels are the filtration channels that are not in the filtration state among the multiple filtration channels.

[0062] A switching mechanism that can switch a filter channel in the filtering state to the clean state, and / or switch a filter channel in the clean state to the filtering state.

[0063] This embodiment sets up multiple filtration channels in the oxygen generator's filter section. The filtration channels in the filtering state can filter the air entering the oxygen generator, and the exhaust gas (mainly nitrogen) discharged from the oxygen generator can clean the filtration channels in the clean state. Thus, while filtering the airflow entering the oxygen generator, the exhaust gas discharged from the oxygen generator can also self-clean the filter section. When the filter section is located in an outdoor environment, it can reduce the frequency of filter replacement by the user, extend the service life of the filter section, and improve the user experience.

[0064] The technical solution of this embodiment will be described in detail below with reference to the accompanying drawings. In the absence of conflict, the following implementation methods and examples can be combined with each other.

[0065] This embodiment provides an oxygen generating device, such as... Figure 1 As shown, the oxygen generating device includes an oxygen generating unit 1, a filter unit 2, and a switching mechanism. The oxygen generating unit 1 has an airflow inlet and an airflow outlet. After air enters the oxygen generating unit 1 through the airflow inlet, the oxygen generating unit 1 separates oxygen from the air and sends the oxygen into the room. Other airflows in the air besides oxygen (mainly nitrogen) flow out through the airflow outlet.

[0066] In a specific example, refer to Figure 1 The oxygen generating unit 1 includes a first molecular sieve 11, a second molecular sieve 12, a solenoid valve 13, an air compressor 16, a radiator 15, a silencer 14, and an air storage tank 18. The intake end of the air compressor 16 forms the airflow inlet of the oxygen generating unit 1, meaning the intake end of the air compressor 16 is connected to at least one of the multiple filter channels 21. One of the first molecular sieve 11 and the second molecular sieve 12 is connected to the exhaust end of the air compressor 16 via the solenoid valve 13 to separate oxygen from the air and transport the separated oxygen to the air storage tank 18. The other of the first molecular sieve 11 and the second molecular sieve 12 is connected to the airflow outlet via the solenoid valve 13 to allow the waste gas (mainly nitrogen) from which oxygen has been separated to flow out of the oxygen generating unit 1 through the airflow outlet. The oxygen flow direction and the nitrogen flow direction are shown in the figure. Figure 1 The direction is indicated by the middle arrow. The solenoid valve 13 can switch the connection status between the first molecular sieve 11 and the second molecular sieve 12 and the compressor exhaust port and the airflow outlet of the oxygen generation unit 1.

[0067] Preferably, the outlet of the oxygen generating unit 1 is connected to the silencer 14 via a solenoid valve 13, and the outlet of the silencer 14 forms the airflow outlet of the oxygen generating unit 1. A radiator 15 is provided in the connection passage between the exhaust end of the air compressor 16 and the solenoid valve 13. The oxygen outlets of the first molecular sieve 11 and the second molecular sieve 12 are both connected to the gas storage tank 18, and the connection passages between the first molecular sieve 11 and the second molecular sieve 12 and the gas storage tank 18 are respectively provided with one-way valves 17 to allow oxygen to flow only from the oxygen outlets of the first molecular sieve 11 and the second molecular sieve 12 to the gas storage tank 18. The oxygen outlet of the gas storage tank 18 is connected to the room to supply oxygen to the room.

[0068] like Figures 2-5 As shown, the filter unit 2 includes multiple independent filter channels 21. Each filter channel 21 has a filtering state connected to an airflow inlet and a clean state connected to an airflow outlet. The filter channel 21 in the filtering state filters the airflow flowing towards the airflow inlet, while the filter channel 21 in the clean state is cleaned by the airflow flowing out of the airflow outlet. At least one filter channel 21 is in the filtering state, and at least one of the remaining filter channels 21 is in the clean state. The remaining filter channels 21 are those that are not in the filtering state. A switching mechanism can switch a filter channel 21 in the filtering state to the clean state, and / or switch a filter channel 21 in the clean state to the filtering state.

[0069] Specifically, the airflow inlet is connected to at least one of the multiple filter channels 21, so that the filter channel 21 connected to the airflow inlet is in a filtering state. The airflow outlet is connected to at least one of the remaining filter channels 21, so that the filter channel 21 connected to the airflow outlet is in a clean state. Furthermore, the filter channel 21 connected to the airflow inlet connects the airflow inlet to the external environment. Under the action of the air compressor 16 of the oxygen generation unit 1, outside air enters the filter channel 21 connected to the airflow inlet, is filtered by the filter channel 21, and then flows back to the airflow inlet. The filter channel 21 connected to the airflow outlet connects the airflow outlet to the external environment. The airflow flowing out of the airflow inlet enters the filter channel 21 connected to it, cleans the dirt adhering to the filter channel 21, and is then discharged into the external environment.

[0070] The airflow direction in the filter channel 21 in the filtering state is opposite to the airflow direction in the filter channel 21 in the cleaning state, so that the airflow coming out of the air outlet can be used to backflush the filter channel 21 to achieve the purpose of cleaning the filter channel 21.

[0071] The switching mechanism switches the connection status of multiple filter channels 21 with the air inlet and air outlet, thereby switching the filter channel 21 in the filtering state to the clean state, and / or switching the filter channel 21 in the clean state to the filtering state.

[0072] In this embodiment, the oxygen generating device, when used in an oxygen-generating air conditioner application scenario, places both the oxygen generating unit 1 and the filter unit 2 in an outdoor environment. This shortens the flow path of the airflow into the oxygen generating unit 1 and enables the airflow entering the oxygen generating unit 1 to maintain a better filtration effect for a longer period of time. At the same time, it reduces the frequency of replacement of the filter unit 2 by the user, extends the service life of the filter unit 2, and improves the user experience.

[0073] This embodiment does not limit the number of filter channels 21, and the number of filter channels 21 in the filtering state and the number of filter channels 21 in the cleaning state can be the same or different. Furthermore, a portion of the filter channels 21 can be in the filtering state, while the remaining filter channels 21 can be in the cleaning state. Alternatively, a first portion of the filter channels 21 can be in the filtering state, a second portion of the filter channels 21 can be in the filtering state, and a third portion of the filter channels 21 can be in the idle state.

[0074] In one example, refer to Figure 5 There are two filter channels 21. One of the filter channels 21 is connected to the airflow inlet, and the other filter channel 21 is connected to the airflow outlet.

[0075] In one example, refer to Figures 2-4 There are three filter channels 21. At least one of the three filter channels 21 is connected to the airflow inlet, and at least one of the remaining filter channels 21 is connected to the airflow outlet.

[0076] In a preferred embodiment, the plurality of filter channels 21 also includes an idle state that is not connected to either the airflow inlet or the airflow outlet, and at least one of the filter channels 21 is in an idle state. The switching mechanism is capable of switching a filter channel 21 in the filtering state to a clean state, switching a filter channel 21 in the idle state to a filtering state, and switching a filter channel 21 in the clean state to an idle state.

[0077] In one example, the filter unit 2 includes 3n filter channels 21, wherein the first n filter channels 21 correspond to the airflow inlet and are in the filtering state. The second n filter channels 21 correspond to the airflow outlet and are in the clean state. The third n filter channels 21 are in the idle state, where n is an integer greater than or equal to 1.

[0078] During the process of switching the connection status of multiple filter channels 21 with the air inlet and air outlet, the switching mechanism switches the first n filter channel 21 to correspond to the air outlet, that is, switches the first n filter channel 21 from the filtering state to the clean state; switches the second n filter channel 21 to the idle state, that is, switches the second n filter channel 21 from the clean state to the idle state; and switches the third n filter channel 21 to correspond to the air inlet, that is, switches the third n filter channel 21 from the idle state to the clean state.

[0079] This embodiment shortens the filtration time of each filtration channel 21, improves the filtration effect of the filter unit 2, and extends the service life of the filter unit 2 by placing multiple filter channels 21 in a filtration state, a cleaning state, and an idle state respectively.

[0080] In one alternative implementation, the switching mechanism includes a drive mechanism connected to the filter section 2. The drive mechanism switches the state of multiple filter channels 21 by driving the filter section 2 to move.

[0081] It should be noted that in this embodiment, the driving mechanism can drive the filter section 2 to move as a whole, or it can drive only a part of the filter section 2 to move.

[0082] In one example, such as Figures 2-4 As shown, the filter unit 2 includes a housing 22 and a plurality of filter tubes. For example, the filter tube includes a tube body and a filter screen disposed on the tube body, and the filter screen filters the airflow entering the tube body.

[0083] The housing 22 has a cylindrical cavity 221 inside, and multiple filter tubes are fixed inside the cylindrical cavity 221 and arranged along the circumferential direction of the housing 22, forming multiple filter channels 21. One end of the cylindrical cavity 221 in the axial direction is provided with an end cap 23, and the housing 22 and the filter tubes as a whole can rotate relative to the end cap 23. The end cap 23 has at least a first connecting port and a second connecting port. The airflow inlet is sealed to the first connecting port, and the airflow outlet is sealed to the second connecting port. The first and second connecting ports are located on the rotation trajectory of the multiple filter tubes.

[0084] The drive mechanism is connected to the housing 22 to drive the housing 22 to rotate. The rotation of the housing 22 drives the multiple filter tubes to rotate. By changing the connection state between the multiple filter tubes and the first and second connecting ports, the state of the multiple filter channels 21 is switched.

[0085] In one example, such as Figures 2-4 As shown, the filter unit 2 includes a housing 22 and a plurality of filter tubes. For example, the filter tube includes a tube body and a filter screen disposed on the tube body, and the filter screen filters the airflow entering the tube body.

[0086] The housing 22 has a cylindrical cavity 221, and multiple filter tubes are arranged within the cylindrical cavity 221 along the circumferential direction of the housing 22, forming multiple filter channels 21. One end of the cylindrical cavity 221 in the axial direction is provided with an end cap 23. The housing 22 and the end cap 23 are fixedly connected, and the multiple filter tubes can rotate relative to the housing 22 within the cylindrical cavity 221. The end cap 23 has at least a first connecting port and a second connecting port. The airflow inlet is sealed to the first connecting port, and the airflow outlet is sealed to the second connecting port. The first and second connecting ports are located on the rotation trajectory of the multiple filter tubes.

[0087] The drive mechanism is connected to multiple filter tubes and can drive the multiple filter tubes to rotate in the circumferential direction of the cylindrical cavity 221. By changing the connection state between the multiple filter tubes and the first and second connecting ports, the state of the multiple filter channels 21 can be switched.

[0088] Specifically, the drive mechanism includes a drive wheel 24, a first tooth, and multiple second teeth. A drive motor is connected to the drive wheel 24. Multiple filter tubes are arranged circumferentially along the drive wheel 24. Multiple second teeth are correspondingly located on the outer wall of each filter tube and are arranged circumferentially along the corresponding filter tube. The second teeth are also located on the inner wall of the housing 22 and are arranged circumferentially along the housing 22. The teeth of the drive wheel 24 mesh with the second teeth, and the second teeth mesh with the first teeth. The drive motor drives the drive wheel 24 to rotate, and the drive wheel 24, through the first teeth and multiple second teeth, moves the multiple filter tubes along the inner wall of the housing 22 to switch the states of the multiple filter channels 21.

[0089] This embodiment achieves the rotation of the filter tube through the cooperation of gears, a first rack, and a second rack, resulting in a simple structure and high reliability.

[0090] In other possible implementations, the filter channel 21 includes a first filter channel 21 and a second filter channel 21. The switching mechanism also includes a reversing valve. The reversing valve has a first conducting state in which the airflow inlet is connected to the first filter channel 21 and the airflow outlet is connected to the second filter channel 21, and a second conducting state in which the airflow inlet is connected to the second filter channel 21 and the airflow outlet is connected to the first filter channel 21. The reversing valve can be controlled to switch between the first conducting state and the second conducting state to achieve the purpose of switching the connection state of multiple filter channels 21 with the airflow inlet and the airflow outlet.

[0091] This embodiment also provides an oxygen-generating air conditioner, which includes an indoor unit and the oxygen-generating device mentioned above. The indoor unit has an air outlet and an air inlet, and the oxygen-generating device has an oxygen outlet. The oxygen outlet is connected to the air outlet and / or the air inlet, and the oxygen flowing out of the oxygen outlet can enter the room with the air outlet of the indoor unit.

[0092] Preferably, the oxygen outlet is connected to the air inlet of the indoor unit, so that the oxygen flowing out of the oxygen outlet can enter the indoor unit with the airflow of the air inlet, and after heat exchange by the indoor heat exchanger, it flows into the indoor environment, improving the comfort of the indoor environment.

[0093] Preferably, the oxygen generator is installed in the outdoor unit and located inside the casing 22 of the outdoor unit, which improves the overall compactness of the oxygen generator and the outdoor unit and reduces the space occupied by the outdoor unit and the oxygen generator.

[0094] In this embodiment, the oxygen-generating air conditioner can ensure the filtration effect of the airflow entering the oxygen-generating device during oxygen generation. At the same time, the filter section 2 of the oxygen-generating device is located outdoors, which shortens the path of the airflow into the oxygen-generating section 1. Furthermore, the filter section 2 can be cleaned using the waste gas (mainly nitrogen) separated from the oxygen-generating section 1, which extends the service life of the filter section 2, reduces the frequency of replacement by the user, and extends the service life of the filter section 2.

[0095] This embodiment provides a control method for an oxygen generating device. This control method is applied to the oxygen generating device or the oxygen-generating air conditioner mentioned above. (Refer to...) Figure 6 The flowchart shown illustrates the control method, which includes the following steps:

[0096] S61. Determine the baseline air intake volume for stable operation of the oxygen generator.

[0097] S62. During the operation of the oxygen generator, determine the first real-time air intake volume;

[0098] S63. Determine whether to switch the status of multiple filter channels 21 based on the first real-time air intake volume and the reference air intake volume.

[0099] Specifically, in this embodiment, by determining the reference air intake volume and the first real-time air intake volume, the blockage status of the filter channel 21 currently in the filtration state can be determined based on the reference air intake volume and the first real-time air intake volume. When it is determined that the filter channel 21 currently in the filtration state is blocked, the state of multiple filter channels 21 is switched. The state of the filter channel 21 includes at least a filtration state and a clean state. That is, the filter channel 21 in the filtration state is switched to the clean state, and the filter channel 21 in the clean state or the idle state is switched to the filtration state, thereby ensuring the filtration effect of the filter unit 2 on the airflow entering the oxygen generation unit 1.

[0100] Among them, the stable working state means that the working parameters of the oxygen generating device are in a stable state, and the working reference includes, but is not limited to, the frequency of the air compressor 16.

[0101] In one example, the oxygen generating unit 1 includes an air compressor 16. The air inlet of the air compressor 16 is connected to the airflow inlet. Different particulate matter concentration ranges correspond to different air compressor 16 frequencies, and the higher the particulate matter concentration range, the lower the air compressor 16 frequency. During the operation of the oxygen generating device, the air compressor 16 operates at a frequency corresponding to the particulate matter concentration. In this embodiment, the operating frequency of the air compressor 16 is controlled according to the particulate matter concentration. When the particulate matter concentration is high, the operating frequency of the air compressor 16 is increased to increase the air intake of the filter channel 21 in the filtration state, thereby improving the oxygen generation efficiency. When the particulate matter concentration is low, the operating frequency of the air compressor 16 is decreased to reduce the air intake of the filter channel 21 in the filtration state, thus preventing the filter channel 21 in the filtration state from becoming clogged prematurely.

[0102] In one alternative implementation, refer to Figure 7 The flowchart shown illustrates the process of determining whether to switch the status of multiple filter channels 21 based on the first real-time air intake volume and the reference air intake volume, including the following steps:

[0103] S71. Determine the first intake efficiency based on the ratio of the first real-time intake volume to the reference intake volume;

[0104] S72, when the first intake efficiency is less than the first set value, control the switching mechanism to switch the state of multiple filter channels 21.

[0105] Specifically, in this embodiment, the blockage status of the filter channel 21 in the filtering state can be determined based on the first intake efficiency. That is, if the first intake efficiency is less than a first set value, it indicates that the filter channel 21 in the filtering state is blocked. In this case, the filter channel 21 in the cleaning or idle state needs to be switched to the filtering state to ensure the filtering effect, and the filter channel 21 in the filtering state needs to be switched back to the cleaning state to restore its filtering capacity. If the first intake efficiency is greater than or equal to the first set value, it indicates that the filter channel 21 in the filtering state is not blocked and still has a strong filtering capacity. In this case, it is not necessary to switch the states of multiple filter channels 21. The value range of the first intake efficiency is, for example, 0.8 to 0.9. For example, the first intake efficiency is 0.8.

[0106] In one alternative implementation, after controlling the switching mechanism to switch the state of multiple filter channels 21, the control method further includes: accumulating the number of switching operations; if the accumulated number of switching operations is less than or equal to a set number of switching operations, returning to the step of determining a first real-time air intake volume; after the accumulated number of switching operations reaches the set number of switching operations, determining a second real-time air intake volume, and determining whether to remind the user to replace the filter 2 based on the second real-time air intake volume and the reference air intake volume.

[0107] Specifically, in this embodiment, each time the switching action of the states of multiple filter channels 21 is performed, the switching count is accumulated once. When the accumulated switching count has not reached the set switching count, it means that the filter section 2 can be kept in a better filtering capacity by switching the states of multiple filter sections 2. At this time, the first real-time air intake volume is determined in real time or periodically, and the state of multiple filter channels 21 is determined based on the first real-time air intake volume and the reference air intake volume.

[0108] When the cumulative number of switching reaches the set number of switching, it means that continuing to switch the state of multiple filter channels 21 may not be able to obtain a good filtration effect. At this time, it is necessary to determine the second real-time air intake volume and determine whether the filter section 2 needs to be replaced based on the second real-time air intake volume and the reference air intake volume.

[0109] For example, the number of switching times is set to an integer multiple of the number of filter channels 21; preferably, the number of switching times is set to be equal to the number of filter channels 21.

[0110] In one alternative implementation, refer to Figure 8 The flowchart shown illustrates the process of determining whether to replace filter 2 based on the second real-time air intake volume and the reference air intake volume, including the following steps:

[0111] S81. Determine the second intake efficiency based on the ratio of the second real-time intake volume to the reference intake volume.

[0112] S82. If the second intake efficiency is less than the second set value, remind the user to replace the filter unit 2; if the second intake efficiency is greater than or equal to the second set value, reset the switching count to zero and return to the step of determining the first real-time intake volume.

[0113] Specifically, the second intake efficiency is determined based on the baseline intake volume and the second real-time intake volume, and the need to replace the filter unit 2 is determined based on the second intake efficiency. When the second intake efficiency is less than the second set value, it means that even by switching the state of the filter channel 21, a good filtration effect cannot be obtained, and the filter unit 2 needs to be replaced. At this time, a prompt message to replace the filter unit 2 can be sent to the user through the indoor unit or the mobile terminal bound to the oxygen generator air conditioner. The prompt message includes, but is not limited to, indicator light flashing, voice, text and beeping.

[0114] When the second intake efficiency is greater than or equal to the second set value, it indicates that a good filtration effect can still be obtained by switching the state of filter channel 21, and there is no need to replace filter unit 2. At this time, the accumulated switching count is cleared and the first real-time intake volume is determined in real time or periodically. Based on the first real-time intake volume and the reference intake volume, it is determined whether to switch the state of multiple filter channels 21. The value range of the second intake efficiency is, for example, 0.8 to 0.9. For example, the second intake efficiency is 0.85.

[0115] In one optional implementation, the reference air intake is the maximum theoretical air intake of the oxygen generator; the first real-time air intake is the theoretical real-time air intake of the oxygen generator before the cumulative number of switching reaches the set number of switching; and the second real-time air intake is the theoretical real-time air intake of the oxygen generator after the cumulative number of switching reaches the set number of switching.

[0116] The theoretical intake volume is a function relating to the intake volume detection value of the oxygen generator 1, the current frequency of the air compressor 16, and the maximum frequency of the air compressor 16. The higher the current frequency of the air compressor 16, the smaller the theoretical intake volume; the higher the intake volume detection value, the larger the theoretical intake volume. And / or, the theoretical intake volume satisfies the formula: Q=f0*L / f, where Q is the theoretical intake volume, f0 is the maximum frequency of the air compressor 16, L is the intake volume detection value, and f is the current frequency of the air compressor 16.

[0117] In other possible implementations, the baseline intake volume can also be the intake volume detection value at the initial stage of oxygen generator startup, the first real-time intake volume can also be the intake volume detection value of oxygen generator before the cumulative number of switching reaches the set number of switching, and the second real-time intake volume can also be the intake volume detection value of oxygen generator after the cumulative number of switching reaches the set number of switching. No specific limitation is made here.

[0118] The control method of this embodiment will be described in detail below with reference to a specific example.

[0119] Combined with Figure 9 In the flowchart of Figure 9 , after the oxygen generation device of the oxygen generation air conditioner is initially started for a period of time and reaches a stable working state, the air particulate matter concentration index C is detected and compared with the preset ranges C1, C2, and C3, where 0 < C1 < C2 < C3. When 0 < C < C1, the air compressor 16 operates normally at a frequency f equal to the rated frequency f0; when C1 < C < C2, the air compressor 16 reduces the frequency to f1; when C2 < C < C3, the air compressor 16 reduces the frequency to f2; when C > C3, the air compressor 16 reduces the frequency to f3;

[0120] At the same time, the flow detection device records the intake air volume L0 of the oxygen generation device at this time, calculates the maximum theoretical intake air volume Q0 = f0 / f * L0. After the oxygen generation device operates, the intake air volume L1 is detected every once in a while, and the first real-time theoretical intake air volume Q1 = f0 * L1 / f is calculated. The first intake efficiency k0 = Q1 / Q0. When k0 ≤ 0.8, the state of the filter channel 21 is switched, that is, the currently filtered filter channel 21 is switched to the clean state, and the filter channel in the clean state or idle state is switched to the filtered state to achieve automatic cleaning of the filter channel 21, and the switching count n = 1 is accumulated. When the filter channel 21 is in a stable operation state again after the state is switched, the above detection, calculation, judgment, and switching steps are repeated. Each time the state of the filter channel 21 is switched, the switching count n + 1. When the switching count n is equal to the set switching count n0, the following steps are executed:

[0121] When the filter channel 21 is in a stable operation state again after the state is switched, record the air particulate matter concentration index C and the intake air volume L at this time 2， Calculate Q1 = f0 * L2 / f, the second intake efficiency k1 = Q2 / Q0. When k1 ≤ 0.85, the air conditioner indoor unit issues a prompt to replace the filter part 2. When k1 > 0.85, the switching count is cleared and then the step of detecting the current intake air volume L1 every once in a while is returned.

[0122] According to an exemplary embodiment, this embodiment proposes a control device, which includes one or more processors and a non-transitory computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement the control method proposed above.

[0123] Specifically, such as Figure 10As shown, the control device includes a processor 100, at least one communication bus 200, a user interface 300, at least one external communication interface 400, and a memory 500. The communication bus 200 is configured to enable communication between these components. The user interface 300 may include a display screen, and the external communication interface 400 may include standard wired and wireless interfaces. The memory 500 stores control methods for the oxygen generator. The processor 100 uses the aforementioned methods when executing the control methods for the oxygen generator stored in the memory 500.

[0124] The description of the control device above is similar to that of the method embodiments described above, and has similar beneficial effects. For technical details not disclosed in the control device of this application, please refer to the description of the method embodiments of this application for understanding.

[0125] The sequence numbers or order of description of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0126] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0127] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0128] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0129] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer, or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., digital versatile disc (DVD)), or a semiconductor medium (e.g., solid state disk (SSD)). It is worth noting that the computer-readable storage medium mentioned in the embodiments of this application can be a non-volatile storage medium; in other words, it can be a non-transient storage medium.

[0130] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.), and signals involved in the embodiments of this application are all authorized by the user or fully authorized by all parties, and the collection, use, and processing of related data must comply with the relevant laws, regulations, and standards of the relevant countries and regions. For example, the scene data of the current frame in the 3D virtual scene involved in the embodiments of this application, the client's device information, and the scene interaction information are all obtained with full authorization.

[0131] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. An oxygen generating apparatus, characterized by comprising: The oxygen production device comprises: an oxygen production part having an air flow inlet and an air flow outlet; a filter part comprising a plurality of filter channels independent of each other, the filter channels comprising a filtering state communicated with the air flow inlet and a cleaning state communicated with the air flow outlet, the filter channels in the filtering state filtering the air flow to the air flow inlet, the filter channels in the cleaning state being cleaned by the air flow out of the air flow outlet, at least one filter channel of the plurality of filter channels being in the filtering state, at least one filter channel of the remaining filter channels being in the cleaning state, the remaining filter channels being the filter channels of the plurality of filter channels not in the filtering state; a switching mechanism capable of switching the filter channels in the filtering state to the cleaning state and / or switching the filter channels in the cleaning state to the filtering state.

2. The oxygen generating device according to claim 1, wherein The direction of the air flow in the filter channels in the filtering state is opposite to the direction of the air flow in the filter channels in the cleaning state.

3. The oxygen generating device of claim 1, wherein, The plurality of filter channels further comprises an idle state not communicated with the air flow inlet and the air flow outlet, at least one filter channel of the plurality of filter channels being in the idle state; The switching mechanism is capable of switching the filter channels in the filtering state to the cleaning state, switching the filter channels in the idle state to the filtering state, and switching the filter channels in the cleaning state to the idle state.

4. The oxygen generating device according to any one of claims 1 to 3, wherein The switching mechanism comprises a driving mechanism connected with the filter part, the driving mechanism switching the states of the plurality of filter channels by driving the filter part to move.

5. The oxygen generating device of claim 4, wherein, The filter part comprises a housing and a plurality of filter tubes, the housing being provided with a columnar cavity penetrating through the housing, the plurality of filter tubes being arranged in the columnar cavity and along the circumferential direction of the columnar cavity, the plurality of filter tubes forming the plurality of filter channels; The driving mechanism is connected with the plurality of filter tubes and used for driving the plurality of filter tubes to move along the circumferential direction of the columnar cavity, so as to switch the states of the plurality of filter channels.

6. The oxygen generating device of claim 5, wherein, The driving mechanism comprises a driving motor, a driving wheel, a first tooth part and a plurality of second tooth parts; The driving motor is connected with the driving wheel, the plurality of filter tubes are arranged along the circumferential direction of the driving wheel, the plurality of second tooth parts are arranged on the outer wall surface of the plurality of filter tubes one by one and along the circumferential direction of the filter tubes, the second tooth parts are arranged on the inner wall surface of the housing and along the circumferential direction of the housing, the teeth of the driving wheel are engaged with the second tooth parts, and the second tooth parts are engaged with the first tooth part; The driving motor drives the driving wheel to rotate, the driving wheel drives the plurality of filter tubes to move along the inner wall surface of the housing through the first tooth part and the plurality of second tooth parts, so as to switch the states of the plurality of filter channels.

7. An oxygen generating air conditioner, characterized by, The oxygen production air conditioner comprises an indoor unit and the oxygen production device according to any one of claims 1-6, the indoor unit having an air outlet and an air inlet, the oxygen production device having an oxygen outlet communicated with the air outlet and / or the air inlet, and the oxygen out of the oxygen outlet being capable of entering the room along the air outlet of the indoor unit.

8. A control method for an oxygen generating device, the control method being applied to the oxygen generating device according to any one of claims 1-6 or to the oxygen generating air conditioner according to claim 7, the control method comprising: Determine the baseline air intake volume for the stable operating state of the oxygen generator; During the operation of the oxygen generating device, a first real-time air intake volume is determined; Determine whether to switch the status of the multiple filter channels based on the first real-time air intake volume and the reference air intake volume; The state of the filter channel includes at least a filtering state and a cleaning state.

9. The control method of the oxygen manufacturing apparatus according to claim 8, wherein The oxygen generation unit includes an air compressor, the air inlet of which is connected to the airflow inlet. Different particulate matter concentration ranges correspond to different air compressor frequencies, and the higher the particulate matter concentration range, the lower the air compressor frequency. During the operation of the oxygen generating device, the air compressor operates at an air compressor frequency corresponding to the particulate matter concentration.

10. The method of claim 8, wherein the method further comprises: Determining whether to switch the status of the multiple filter channels based on the first real-time air intake volume and the reference air intake volume includes: The first intake efficiency is determined based on the ratio of the first real-time intake volume to the reference intake volume; When the first intake efficiency is less than the first set value, the switching mechanism is controlled to switch the state of the plurality of filter channels.

11. The control method of the oxygen manufacturing apparatus according to claim 8, wherein After the step of controlling the switching mechanism to switch the states of the plurality of filter channels, the control method further includes: Total number of switching attempts; If the cumulative number of switching is less than or equal to the set number of switching, return to the step of determining the first real-time air intake volume; After the cumulative number of switching operations reaches the set number of switching operations, a second real-time air intake volume is determined, and based on the second real-time air intake volume and the baseline air intake volume, it is determined whether to remind the user to replace the filter.

12. The method of controlling the oxygen manufacturing apparatus according to claim 11, wherein The step of determining whether to replace the filter based on the second real-time air intake volume and the reference air intake volume includes: The second intake efficiency is determined based on the ratio of the second real-time intake volume to the reference intake volume; If the second intake efficiency is less than the second set value, remind the user to replace the filter. If the second intake efficiency is greater than or equal to the second set value, the switching count is reset to zero and the process returns to the step of determining the first real-time intake volume.

13. The method of controlling the oxygen manufacturing apparatus according to claim 11, wherein The reference air intake volume is the maximum theoretical air intake volume of the oxygen generating device; The first real-time air intake is the theoretical real-time air intake of the oxygen generating device before the cumulative number of switching times reaches the set number of switching times; The second real-time air intake is the theoretical real-time air intake of the oxygen generating device after the cumulative number of switching reaches the set number of switching. The theoretical intake volume is a function relating to the intake volume detection value of the oxygen generation unit, the current frequency of the air compressor, and the maximum frequency of the air compressor. The higher the current frequency of the air compressor, the smaller the theoretical intake volume; the higher the intake volume detection value, the larger the theoretical intake volume. And / or, the theoretical intake volume satisfies the formula: Q=f0*L / f, where Q is the theoretical intake volume, f0 is the maximum frequency of the air compressor, L is the intake volume detection value, and f is the current frequency of the air compressor.

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