Air purification device

Abstract

The present invention discloses an air purification device, which includes: an air supply unit, an oxygenation unit, a carbon removal unit, a carbon dioxide concentration sensor and a controller. The controller is configured to obtain a carbon dioxide concentration value detected by the carbon dioxide concentration sensor, and control the carbon removal unit to operate when the carbon dioxide concentration value is greater than a first preset value and not greater than a second preset value. When the carbon dioxide concentration value is greater than the second preset value and not greater than a third preset value, control the carbon removal unit and the oxygenation unit to operate, and the carbon removal unit is separated from the oxygenation unit and moves indoors. When the carbon dioxide concentration value is greater than the third preset value, control the carbon removal unit, the oxygenation unit and the air supply unit to operate, and the carbon removal unit is separated from the oxygenation unit and moves indoors. The present invention can quickly purify indoor air, ensure that the indoor oxygen concentration value meets the normal needs of indoor users, improve indoor air quality, and enhance user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air purification device. Background Art

[0002] The air purification device in the related art purifies the indoor air but cannot change the oxygen content of the indoor air. When the pollution of the indoor air reaches a certain level, the effect of the air purification device is limited and cannot quickly and effectively improve the indoor air quality.

[0003] At present, air purification devices with fresh air function can replenish fresh air into the room. However, in some special circumstances, such as the rainy season when the air humidity is high, the filter of the fresh air module of the air purification device is prone to mold, which in turn causes the air from the fresh air system to be polluted. The polluted air is discharged into the room, which can easily cause physical discomfort to people indoors; or in winter when the air temperature is low, the temperature of the outdoor fresh air introduced by the fresh air module of the air purification device is low, causing the indoor temperature to drop, reducing the experience of people indoors. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, an object of the present invention is to provide an air purification device that can quickly purify indoor air, ensure that the indoor oxygen concentration value meets the normal needs of indoor users, improve indoor air quality, and enhance user experience.

[0006] To achieve the above objectives, an embodiment of a first aspect of the present invention provides an air purification device, comprising: an air supply unit for supplying air into a room; an oxygenation unit connected to the air supply unit for generating oxygen; a carbon removal unit detachably connected to the oxygenation unit for absorbing carbon dioxide; a carbon dioxide concentration sensor for detecting a carbon dioxide concentration in the room; and a controller connected to the air supply unit, the oxygenation unit, the carbon removal unit, and the carbon dioxide concentration sensor, respectively. The controller is configured to obtain a carbon dioxide concentration value detected by the carbon dioxide concentration sensor, and when the carbon dioxide concentration value is greater than a first preset value and not greater than a second preset value, control the carbon removal unit to operate; when the carbon dioxide concentration value is greater than the second preset value and not greater than a third preset value, control the carbon removal unit and the oxygenation unit to operate, separate the carbon removal unit from the oxygenation unit, and move indoors; and when the carbon dioxide concentration value is greater than the third preset value, control the carbon removal unit, the oxygenation unit, and the air supply unit to operate, separate the carbon removal unit from the oxygenation unit, and move indoors. The first preset value, the second preset value, and the third preset value increase in sequence.

[0007] According to the air purification device of the embodiment of the present invention, the air supply unit, the oxygen enrichment unit and the carbon removal unit are adaptively controlled according to the size relationship between the indoor carbon dioxide concentration value and different preset concentration values, so as to disturb the air in the indoor space, achieve rapid purification of the indoor air, ensure that the indoor oxygen concentration value meets the normal needs of indoor users, improve the indoor air quality, and enhance the user experience.

[0008] In some embodiments, when the carbon dioxide concentration value is not greater than the second preset value, the fan of the carbon removal unit operates at a first speed; when the carbon dioxide concentration value is greater than the second preset value, the fan of the carbon removal unit operates at a second speed; wherein, the first speed is less than the second speed.

[0009] In some embodiments, when the carbon dioxide concentration value is not greater than the third preset value, the oxygen enrichment unit operates at a first power; when the carbon dioxide concentration value is greater than the third preset value, the oxygen enrichment unit operates at a second power; wherein the first power is less than the second power.

[0010] In some embodiments, when the carbon dioxide concentration value is greater than the first preset value and not greater than the second preset value, after the carbon removal unit is operated, if the carbon dioxide concentration value is not greater than the first preset value and lasts for a first preset time, the carbon removal unit stops operating; when the carbon dioxide concentration value is greater than the second preset value and not greater than the third preset value, after the carbon removal unit and the oxygenation unit are operated, if the carbon dioxide concentration value is not greater than the first preset value, the power of the oxygenation unit is reduced; when the carbon dioxide concentration value is greater than the third preset value, after the indoor unit, the carbon removal unit and the oxygenation unit are operated, if the carbon dioxide concentration value is not greater than the first preset value, the power of the oxygenation unit is reduced and the indoor unit stops operating.

[0011] In some embodiments, when the carbon dioxide concentration value is greater than the second preset value, if the carbon dioxide concentration value is not greater than the first preset value, the carbon removal unit is combined with the oxygenation unit.

[0012] In some embodiments, when the carbon dioxide concentration value is greater than the third preset value, if the carbon dioxide concentration value is not greater than the second preset value, the rotation speed of the fan of the air supply unit is reduced and the moving speed of the carbon removal unit is reduced.

[0013] In some embodiments, an oxygen concentration sensor is connected to the controller for detecting the oxygen concentration value; wherein, when the carbon dioxide concentration value is greater than the second preset value, after the carbon dioxide concentration value is not greater than the first preset value, if the indoor oxygen concentration value is not lower than the first preset oxygen value, the oxygen enrichment unit stops operating.

[0014] In some embodiments, when the carbon dioxide concentration value is greater than the second preset value, after the oxygen enrichment unit stops operating, if the carbon dioxide concentration value is not greater than the first preset value and lasts for a preset time, the carbon removal unit stops operating.

[0015] In some embodiments, the carbon removal unit includes: a first shell, the first shell is provided with a first air outlet, a second air outlet and an indoor air inlet; an adsorption filter, the adsorption filter is installed on the first shell, and is used to absorb carbon dioxide in the air; a carbon removal fan, the carbon removal fan is installed on the first shell, and is used to guide indoor air from the indoor air inlet to the adsorption filter, and guide the air passing through the adsorption filter back to the room from the first air outlet; a heating component, the heating component is installed on the first shell, and is used to heat the adsorption filter to increase the temperature of the adsorption filter and discharge carbon dioxide, and the carbon dioxide discharged from the adsorption filter is discharged to the outside through the second air outlet.

[0016] In some embodiments, the first shell has a first air cavity and a second air cavity, the first air cavity is respectively connected to the first air outlet and the air inlet, and the second air cavity is connected to the second air outlet; the adsorption filter is multiple and includes a first filter and a second filter, and the carbon removal unit includes a first state and a second state, when the carbon removal unit is in the first state, the first filter is located in the first air cavity and the second filter is located in the second air cavity, when the carbon removal unit is in the second state, the first filter is located in the second air cavity and the second filter is located in the first air cavity; wherein, the heating component heats the adsorption filter located in the second air cavity.

[0017] In some embodiments, the oxygen enrichment unit includes: a second shell, the second shell is provided with an outdoor connecting port and a third air outlet, and the first shell and the second shell are detachably connected; a fan, the fan is arranged in the shell, and is used to guide outdoor air from the outdoor connecting port into the second shell; an oxygen-enriching membrane, the oxygen-enriching membrane is installed in the shell, and is used to enrich the oxygen in the outdoor air entering from the outdoor connecting port; a pump body, the pump body is installed in the shell, and is used to discharge the oxygen enriched by the oxygen-enriching membrane from the third air outlet to the room; a filter, the filter is installed in the shell, and is used to filter the outdoor air guided by the fan.

[0018] In some embodiments, when the carbon removal unit is separated from the oxygenation unit, the outdoor connecting port and the third air outlet are connected; when the carbon removal unit is combined with the oxygenation unit, the second air outlet is connected to the outdoor connecting port, and the outdoor connecting port and the third air outlet are disconnected, and the carbon dioxide discharged from the adsorption filter is discharged to the outside through the second air outlet and the outdoor connecting port.

[0019] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0021] Figure 1 is a block diagram of an air purification device according to an embodiment of the present invention;

[0022] Figure 2 is an overall schematic diagram of the connection between the oxygen enrichment unit and the carbon removal unit according to one embodiment of the present invention;

[0023] Figure 3 is an overall schematic diagram of the connection between the oxygen enrichment unit and the carbon removal unit according to one embodiment of the present invention;

[0024] Figure 4 This is a flow chart of a method for controlling carbon removal and oxygen enrichment in an air purification device according to one embodiment of the present invention;

[0025] Figure 5 2 is a schematic structural diagram of a carbon removal unit of an air purification device according to an embodiment of the present invention;

[0026] Figure 6 2 is a schematic structural diagram of a carbon removal unit of an air purification device according to an embodiment of the present invention;

[0027] Figure 7 2 is a schematic structural diagram of an oxygen enrichment unit of an air purification device according to an embodiment of the present invention;

[0028] Figure 8 The present invention is a flowchart of a method for controlling carbon removal and oxygenation in an air purification device according to a specific embodiment of the present invention.

[0029] Figure 1: Air purification device 1; air supply unit 11; oxygen enrichment unit 12; second shell 121; outdoor connecting port 1211; third air outlet 1212; fan 122; oxygen enrichment membrane 123; pump body 124; filter 125; carbon removal unit 13; first shell 131; first air outlet 1311; second air outlet 1312; indoor air inlet 1313; first air cavity 1314; second air cavity 1315; adsorption filter 132; first filter 1321; second filter 1322; carbon removal fan 133; heating assembly 134; universal roller 135; carbon dioxide concentration sensor 14; controller 15. DETAILED DESCRIPTION

[0030] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0031] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0034] The air conditioner of the present invention performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the air that has been conditioned and heat exchanged.

[0035] The compressor compresses high-temperature, high-pressure refrigerant gas and discharges the compressed gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, releasing heat into the surrounding environment through the condensation process.

[0036] The expansion valve expands the high-temperature, high-pressure liquid refrigerant condensed in the condenser into a lower-temperature, low-pressure liquid. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the lower-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves cooling by utilizing the latent heat of evaporation to exchange heat with the material being cooled. Throughout this cycle, the air conditioner regulates the temperature of the indoor space.

[0037] The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

[0038] The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger functions as a condenser, the air conditioner functions as a heater in heating mode, and when the indoor heat exchanger functions as an evaporator, the air conditioner functions as a cooler in cooling mode.

[0039] In related technologies, air purification devices cannot solve the problem of poor indoor air quality, continuously decreasing oxygen content, and continuously accumulating carbon dioxide content when people move around frequently indoors and ventilation is not timely, resulting in decreased work efficiency, slow reaction, and even affecting human health.

[0040] Therefore, the air conditioner in the embodiment of the present invention is provided with an air supply unit and is linked through the oxygen enrichment unit and the carbon removal unit, which can quickly improve the problem of excessively high carbon dioxide concentration in the indoor air, complete the purification of the indoor air, create a fresh and comfortable working and living environment for users, and eliminate the situation where the user's life and health are threatened due to inconvenient or untimely ventilation.

[0041] Reference below Figures 1-8 An air purification device 1 according to an embodiment of the present invention will be described.

[0042] like Figure 1 As shown in FIG, the air purification device 1 according to the embodiment of the present invention includes an air supply unit 11 , an oxygen enrichment unit 12 , a carbon removal unit 13 , a carbon dioxide concentration sensor 14 and a controller 15 .

[0043] The air supply unit 11 is used to supply air into the room; the oxygen enrichment unit 12 is connected to the air supply unit 11 and is used to generate oxygen; the carbon removal unit 13 is detachably connected to the oxygen enrichment unit 12 and is used to absorb carbon dioxide; the carbon dioxide concentration sensor 14 is used to detect the indoor carbon dioxide concentration; the controller 15 is respectively connected to the air supply unit 11, the oxygen enrichment unit 12, the carbon removal unit 13 and the carbon dioxide concentration sensor 14.

[0044] The controller 15 is configured to obtain the carbon dioxide concentration value detected by the carbon dioxide concentration sensor 14, and when the carbon dioxide concentration value is greater than the first preset value and not greater than the second preset value, control the carbon removal unit 13 to operate, and when the carbon dioxide concentration value is greater than the second preset value and not greater than the third preset value, control the carbon removal unit 13 and the oxygenation unit 12 to operate, and the carbon removal unit 13 is separated from the oxygenation unit 12 and moves indoors, and when the carbon dioxide concentration value is greater than the third preset value, control the carbon removal unit 13, the oxygenation unit 12 and the air supply unit 11 to operate, and the carbon removal unit 13 is separated from the oxygenation unit 12 and moves indoors; wherein, the first preset value, the second preset value and the third preset value increase sequentially.

[0045] The air supply unit 11 may be an indoor unit of an air conditioner.

[0046] In the embodiment, when there is no one indoors, the carbon dioxide concentration is generally around 500 to 700 PPM. According to the indoor air quality standard, when the carbon dioxide concentration is controlled below 600 ppm, the indoor environment is comfortable and excellent, and the user experience is good. As time changes, if the user frequently moves indoors and ventilation is not timely, the indoor carbon dioxide content continues to accumulate and the carbon dioxide concentration will gradually increase. When the carbon dioxide concentration is between 1000 and 2000 ppm, the user will feel turbid air and begin to feel drowsy, which is harmful to human health. When the carbon dioxide concentration is as high as 2000 to 5000 ppm, the user will feel headache, drowsiness, dullness, inability to concentrate, rapid heartbeat and mild nausea and other symptoms. Therefore, the first preset value of carbon dioxide can be set to 600ppm, for example, denoted as C1, the second preset value can be set to 1000ppm, for example, denoted as C2, and the third preset value can be set to 2000ppm, for example, denoted as C3. The first preset value C1, the second preset value C2 and the third preset value C3 increase successively, that is, C1<C2<C3. By setting the preset concentration value of carbon dioxide, it is convenient to control the air supply unit 11, the oxygen enrichment unit 12 and the carbon removal unit 13 accordingly according to the indoor carbon dioxide concentration level. When controlling the air supply unit 11, the oxygen enrichment unit 12 and the carbon removal unit 13, priority is given to the impact of carbon dioxide on the user, while taking into account noise pollution. While reducing noise pollution, the oxygen concentration in the indoor space is increased, and the indoor air quality is improved to enhance the user experience.

[0047] like Figure 2 and Figure 3 The figure shows an overall schematic diagram of the connection between the oxygenation unit 12 and the carbon removal unit 13 according to one embodiment of the present invention. The upper part is the oxygenation unit 12, and the lower part is the carbon removal unit 13. The carbon removal unit 13 can be combined with the oxygenation unit 12, or it can be separated from the oxygenation unit 12 and moved indoors.

[0048] When the air purification device 1 is turned on, the carbon dioxide concentration sensor 14 detects the concentration of carbon dioxide in the indoor air in real time, for example, recorded as C. After the controller 15 obtains the carbon dioxide concentration C detected by the carbon dioxide concentration sensor 14, it compares the size relationship between the indoor carbon dioxide concentration C and the preset concentration value. When the carbon dioxide concentration value C is greater than the first preset value C1 and not greater than the second preset value C2, that is, C1<C≤C2, it is considered that the concentration of carbon dioxide in the indoor air is in a lightly polluted state, and the carbon removal unit 13 is controlled to operate, and the indoor air is absorbed into the carbon removal unit 13. After filtration, the air containing a lower concentration of carbon dioxide is released into the indoor air. At this time, the noise of the air purification device 1 is minimal.

[0049] When the carbon dioxide concentration value C is greater than the second preset value C2 and not greater than the third preset value C3, that is, C2<C≤C3, it is considered that the concentration of carbon dioxide in the indoor air is in a moderate pollution state, and the carbon removal unit 13 and the oxygenation unit 12 are controlled to operate. The carbon removal unit 13 is separated from the oxygenation unit 12 and moves indoors to execute a wide-area carbon dioxide adsorption mode. The oxygenation unit 12 delivers high-concentration oxygen into the room. The carbon removal unit 13 and the oxygenation unit 12 are carried out simultaneously, and the oxygen replenishment rate and the carbon dioxide adsorption rate can be taken into account at the same time to meet the user's demand for indoor air.

[0050] When the carbon dioxide concentration value C is greater than the third preset value C3, that is, C>C3, it is considered that the concentration of carbon dioxide in the indoor air is in a severely polluted state, and the carbon removal unit 13 and the oxygenation unit 12 are controlled to operate. The carbon removal unit 13 is separated from the oxygenation unit 12 and moves indoors to execute the wide-area carbon dioxide adsorption mode. The oxygenation unit 12 delivers high-concentration oxygen to the room. At the same time, the air purification device 1 sends a linkage signal to control the air supply unit 11 to operate and disturb the indoor air. At this time, the oxygen replenishment rate and the carbon dioxide adsorption rate are the highest, providing users with comfortable air to the maximum extent. According to the relationship between the carbon dioxide concentration value and the first preset value, the second preset value and the third preset value, the indoor carbon dioxide concentration level is judged, and the air supply unit 11, the oxygenation unit 12 and the carbon removal unit 13 are controlled accordingly to disturb the air in the indoor space and achieve rapid purification of the indoor air.

[0051] The following combination Figure 4 The control method for carbon removal and oxygen enrichment of the air purification device 1 according to the embodiment of the present invention is described with an example.

[0052] like Figure 4 As shown, the control method for carbon removal and oxygen enrichment of an air purification device according to an embodiment of the present invention includes at least steps S1 to S8.

[0053] In step S1, the air purification device is turned on to obtain a carbon dioxide concentration value detected by a carbon dioxide concentration sensor.

[0054] Step S2, determine if C1 < C ≤ C2, if so, go to step S3; if not, go to step S4.

[0055] Step S3, controlling the carbon removal unit to operate, absorbing the indoor air into the carbon removal unit, and releasing the air containing a lower concentration of carbon dioxide into the indoor air after filtering.

[0056] Step S4, determine if C2 < C ≤ C3, if so, go to step S5; if not, go to step S6.

[0057] Step S5, controlling the carbon removal unit and the oxygenation unit to operate, the carbon removal unit is separated from the oxygenation unit and moves indoors, executing a wide-area carbon dioxide adsorption mode, and the oxygenation unit delivers high-concentration oxygen into the room.

[0058] Step S6, determine if C>C3, if so, go to step S7; if not, go to step S8.

[0059] Step S7, control the operation of the carbon removal unit and the oxygenation unit. The carbon removal unit is separated from the oxygenation unit and moves indoors to execute the wide-area carbon dioxide adsorption mode. The oxygenation unit delivers high-concentration oxygen into the room. At the same time, the carbon removal and oxygenation device starts to send a linkage signal to the air purification device to control the operation of the air supply unit to disturb the indoor air.

[0060] Step S8: The indoor environment is comfortable and good, and the user experience is good.

[0061] According to the air purification device 1 of the embodiment of the present invention, the air supply unit 11, the oxygen enrichment unit 12 and the carbon removal unit 13 are adaptively controlled according to the size relationship between the indoor carbon dioxide concentration value and different preset concentration values, so as to disturb the air in the indoor space, achieve rapid purification of the indoor air, ensure that the indoor oxygen concentration value meets the normal needs of indoor users, improve the indoor air quality, and enhance the user experience.

[0062] In some embodiments, when the carbon dioxide concentration value is not greater than the second preset value, the fan of the carbon removal unit 13 operates at a first speed; when the carbon dioxide concentration value is greater than the second preset value, the fan of the carbon removal unit 13 operates at a second speed; wherein the first speed is less than the second speed.

[0063] In an embodiment, when the carbon dioxide concentration value C is not greater than the second preset value C2, that is, C≤C2, it is considered that the concentration of carbon dioxide in the indoor air is in a lightly polluted state, and the fan of the carbon removal unit 13 is controlled to operate at a first speed, for example, at 80% of the maximum speed of the carbon removal unit 13, so as to reduce the noise during the operation of the carbon removal unit 13 and improve the user experience; when the carbon dioxide concentration value C is greater than the second preset value C2, that is, C>C2, it is considered that the concentration of carbon dioxide in the indoor air is in a moderately polluted state, and the fan of the carbon removal unit 13 is controlled to operate at a second speed, for example, at the maximum speed of the carbon removal unit 13, which can quickly reduce the concentration of carbon dioxide in the indoor air and ensure that the operating rate of the air purification device 1 meets user needs.

[0064] In some embodiments, when the carbon dioxide concentration value is not greater than the third preset value, the oxygenation unit 12 operates at a first power; when the carbon dioxide concentration value is greater than the third preset value, the oxygenation unit 12 operates at a second power; wherein the first power is less than the second power.

[0065] In an embodiment, when the carbon dioxide concentration value C is not greater than the third preset value C3, that is, C≤C3, it is considered that the concentration of carbon dioxide in the indoor air is in a moderate pollution state, and the oxygenation unit 12 is controlled to operate at a first power, for example, at 80% of the rated power of the oxygenation unit, so as to reduce the noise during the operation of the oxygenation unit 12 and improve the user experience; when the carbon dioxide concentration value C is greater than the third preset value C3, that is, C>C3, it is considered that the concentration of carbon dioxide in the indoor air is in a heavy pollution state, and the oxygenation unit 12 is controlled to operate at a second power, for example, at the rated power of the oxygenation unit 12, which can quickly increase the concentration of oxygen in the indoor air and ensure that the operating rate of the air purification device 1 meets user needs.

[0066] In some embodiments, when the carbon dioxide concentration value is greater than the first preset value and not greater than the second preset value, after the carbon removal unit 13 is in operation, if the carbon dioxide concentration value is not greater than the first preset value and lasts for the first preset time, the carbon removal unit 13 stops operating; when the carbon dioxide concentration value is greater than the second preset value and not greater than the third preset value, after the carbon removal unit 13 and the oxygenation unit 12 are in operation, if the carbon dioxide concentration value is not greater than the first preset value, the power of the oxygenation unit 12 is reduced; when the carbon dioxide concentration value is greater than the third preset value, after the indoor unit, the carbon removal unit 13 and the oxygenation unit 12 are in operation, if the carbon dioxide concentration value is not greater than the first preset value, the power of the oxygenation unit 12 is reduced and the indoor unit stops operating.

[0067] In an embodiment, when the carbon dioxide concentration value C is greater than the first preset value C1 and not greater than the second preset value C2, that is, C1<C≤C2, it is considered that the concentration of carbon dioxide in the indoor air is in a slightly polluted state, and the carbon removal unit 13 is controlled to operate. After the carbon removal unit 13 has been running for a period of time, the carbon dioxide concentration sensor 14 detects that the indoor carbon dioxide concentration begins to decrease. If it is detected that the carbon dioxide concentration value C is not greater than the first preset value C1 and continues for the first preset time, for example 10 minutes, that is, the carbon dioxide concentration value always remains in the state of C≤C1 within 10 minutes, it is considered that the indoor air has reached a comfortable and excellent state and meets the user's adaptation needs, and the carbon removal unit 13 is controlled to stop operating to reduce the noise during the operation of the carbon removal unit 13 and improve the user's experience.

[0068] When the carbon dioxide concentration value C is greater than the second preset value C2 and not greater than the third preset value C3, that is, C2<C≤C3, it is considered that the concentration of carbon dioxide in the indoor air is in a moderate pollution state, and the carbon removal unit 13 and the oxygenation unit 12 are controlled to operate. After the carbon removal unit 13 and the oxygenation unit 12 have been running for a period of time, the carbon dioxide concentration sensor 14 detects that the indoor carbon dioxide concentration begins to decrease. If it is detected that the carbon dioxide concentration value C is not greater than the first preset value C1, that is, C≤C1, it is considered that the indoor air has reached a comfortable and excellent state and meets the user's adaptation needs, then the operating power of the oxygenation unit 12 is controlled to be reduced to reduce the noise during the operation of the oxygenation unit 12 and improve the user's experience.

[0069] When the carbon dioxide concentration value C is greater than the third preset value C3, that is, C>C3, it is considered that the concentration of carbon dioxide in the indoor air is in a severely polluted state, and the carbon removal unit 13 and the oxygenation unit 12 are controlled to operate. After the carbon removal unit 13 and the oxygenation unit 12 have been running for a period of time, the carbon dioxide concentration sensor 14 detects that the indoor carbon dioxide concentration begins to decrease. If it is detected that the carbon dioxide concentration value C is not greater than the first preset value, C1, that is, C≤C1, it is considered that the indoor air has reached a comfortable and excellent state and meets the user's adaptation needs, then the operating power of the oxygenation unit 12 is controlled to be reduced, and the indoor unit is controlled to stop operating at the same time to reduce the noise during the operation of the oxygenation unit 12 and improve the user's experience.

[0070] In some embodiments, when the carbon dioxide concentration value is greater than the second preset value, if the carbon dioxide concentration value is not greater than the first preset value, the carbon removal unit 13 is combined with the oxygenation unit 12 .

[0071] In the embodiment, when the carbon dioxide concentration value C is greater than the second preset value C2, that is, C>C2, it is considered that the concentration of carbon dioxide in the indoor air is in a moderately polluted state, and the carbon removal unit 13 and the oxygenation unit 12 are controlled to operate, and the carbon removal unit 13 is separated from the oxygenation unit 12, and moves indoors to perform a wide-area carbon dioxide adsorption mode. After the carbon removal unit 13 and the oxygenation unit 12 have been running for a period of time, the carbon dioxide concentration sensor 14 detects that the indoor carbon dioxide concentration begins to decrease. If it is detected that the carbon dioxide concentration value C is not greater than the first preset value C1, that is, C≤C1, it is considered that the indoor air has reached a comfortable and excellent state and meets the user's adaptation needs, then the carbon removal unit 13 is controlled to end the mode of moving indoors to perform a wide-area carbon dioxide adsorption mode, and is combined with the oxygenation unit 12 to perform a fixed-point carbon removal mode to extend the service life of the air purification device 1.

[0072] In some embodiments, when the carbon dioxide concentration value is greater than the third preset value, if the carbon dioxide concentration value is not greater than the second preset value, the rotation speed of the fan of the air supply unit 11 is reduced, and the moving speed of the carbon removal unit 13 is reduced.

[0073] In the embodiment, when the carbon dioxide concentration value C is greater than the third preset value C3, that is, C>C3, it is considered that the concentration of carbon dioxide in the indoor air is in a severely polluted state, and the carbon removal unit 13, the oxygenation unit 12 and the air supply unit 11 are controlled to operate, and the carbon removal unit 13 is separated from the oxygenation unit 12 and moves indoors. After the carbon removal unit 13, the oxygenation unit 12 and the air supply unit 11 have been running for a period of time, the carbon dioxide concentration sensor 14 detects that the indoor carbon dioxide concentration begins to decrease. If it is detected that the carbon dioxide concentration value C is not greater than the second preset value C2, that is, C≤C2, it is considered that the indoor air is in a relatively comfortable state, and the speed of the fan of the air supply unit 11 is controlled to decrease, and the moving speed of the carbon removal unit 13 is controlled to decrease, so as to extend the service life of the air purification device 1.

[0074] In some embodiments, the air purification device 1 also includes an oxygen concentration sensor, which is connected to the controller 15 and is used to detect the oxygen concentration value; wherein, when the carbon dioxide concentration value is greater than the second preset value, after the carbon dioxide concentration value is not greater than the first preset value, if the indoor oxygen concentration value is not lower than the first preset oxygen value, the oxygen enrichment unit 12 stops operating.

[0075] In an embodiment, when the indoor oxygen concentration is lower than 19.5%, people will breathe faster and feel tired and weak; when the indoor oxygen concentration is greater than 23.5%, the indoor environment is an oxygen-rich environment, so the first preset oxygen value of oxygen can be set to 21%, for example, recorded as X1, so that the indoor air quality is maintained in a comfortable range. By setting the preset oxygen concentration value, it is convenient to control the oxygen enrichment unit 12 accordingly according to the indoor oxygen concentration level.

[0076] The oxygen concentration sensor detects the indoor oxygen concentration value in real time, for example, denoted as X. When the carbon dioxide concentration value C is greater than the second preset value C2, that is, C>C2, it is considered that the concentration of carbon dioxide in the indoor air is in a moderate pollution state, and the carbon removal unit 13 and the oxygenation unit 12 are controlled to operate, and the oxygenation unit 12 delivers high-concentration oxygen to the room. After the carbon removal unit 13 and the oxygenation unit 12 have been running for a period of time, the carbon dioxide concentration sensor 14 detects that the indoor carbon dioxide concentration begins to decrease. If the carbon dioxide concentration value C is detected to be not greater than the first preset value C1, that is, C≤C1, the controller 15 obtains the indoor oxygen concentration value X detected by the oxygen concentration sensor, and compares the size relationship between the indoor oxygen concentration value X and the first preset oxygen value X1. If the indoor oxygen concentration value X is detected to be not lower than the first preset oxygen value X1, that is, X≥X1, it is considered that the indoor air has reached a comfortable and excellent state and meets the user's adaptation needs, and the oxygenation unit 12 is controlled to stop operating to extend the service life of the air purification device 1.

[0077] In some embodiments, when the carbon dioxide concentration is greater than the second preset value, after the oxygenation unit 12 stops operating, if the carbon dioxide concentration is not greater than the first preset value and lasts for a preset time, the carbon removal unit 13 stops operating.

[0078] In an embodiment, when the carbon dioxide concentration value C is greater than the second preset value C2, that is, C>C2, it is considered that the concentration of carbon dioxide in the indoor air is in a moderately polluted state, and the carbon removal unit 13 and the oxygenation unit 12 are controlled to operate. After the carbon removal unit 13 and the oxygenation unit 12 have been operating for a period of time, the controller 15 controls the oxygenation unit 12 to stop operating, and the carbon dioxide concentration sensor 14 continuously detects the indoor carbon dioxide concentration. If the carbon dioxide concentration value C is detected to be not greater than the first preset value C1 and continues for the first preset time, for example, 10 minutes, that is, the carbon dioxide concentration value always remains in the state of C≤C1 within 10 minutes, it is considered that the indoor air has reached a comfortable and excellent state and meets the user's adaptation needs, and the carbon removal unit 13 is controlled to stop operating to reduce the noise during the operation of the carbon removal unit 13 and improve the user's experience.

[0079] In some embodiments, as Figure 3 、 Figure 5 and Figure 6 As shown, the carbon removal unit 13 includes a first shell 131 , an adsorption filter 132 , a carbon removal fan 133 and a heating assembly 134 .

[0080] The first shell 131 is provided with a first air outlet 1311, a second air outlet 1312 and an indoor air inlet 1313; the adsorption filter 132 is installed on the first shell 131 for absorbing carbon dioxide in the air; the carbon removal fan 133 is installed on the first shell 131 for guiding the indoor air from the indoor air inlet 1313 to the adsorption filter 132, and guiding the air passing through the adsorption filter 132 back to the room from the first air outlet 1311; the heating component 134 is installed on the first shell 131 for heating the adsorption filter 132 to increase the temperature of the adsorption filter 132 and discharge carbon dioxide, and the carbon dioxide discharged from the adsorption filter 132 is discharged to the outside through the second air outlet 1312.

[0081] In an embodiment, indoor air is introduced from the indoor air inlet 1313 by the decarbonization fan 133, and the carbon dioxide in the indoor air is absorbed by the adsorption filter 132. The absorbed air is then guided back to the room from the first air outlet 1311 by the decarbonization fan 133. When the adsorption filter 132 in the decarbonization unit 13 is saturated, the heating component 134 starts to heat the adsorption filter 132, and the carbon dioxide is desorbed from the adsorption filter 132 by heating, thereby realizing the recycling of the adsorption filter 132. The heated and desorbed carbon dioxide is discharged outdoors through the second air outlet 1312.

[0082] In some embodiments, as Figure 3 、 Figure 5 and Figure 6 As shown, the first shell 131 has a first air cavity 1314 and a second air cavity 1315, the first air cavity 1314 is respectively connected to the first air outlet 1311 and the indoor air inlet 1313, and the second air cavity 1315 is connected to the second air outlet 1312; the adsorption filter 132 is multiple and includes a first filter 1321 and a second filter 1322, and the carbon removal unit 13 includes a first state and a second state. When the carbon removal unit 13 is in the first state, the first filter 1321 is located in the first air cavity 1314 and the second filter 1322 is located in the second air cavity 1315. When the carbon removal unit 13 is in the second state, the first filter 1321 is located in the second air cavity 1315 and the second filter 1322 is located in the first air cavity 1314; wherein, the heating component 134 heats the adsorption filter 132 located in the second air cavity 1315.

[0083] In an embodiment, the first filter 1321 and the second filter 1322 are rotatable. When the carbon removal unit 13 is in the first state, the first filter 1321 is located in the first air cavity 1314 to perform the operation of adsorbing carbon dioxide, and the second filter 1322 is located in the second air cavity 1315 to standby; when the first filter 1321 located in the first air cavity 1314 is saturated with adsorption, the first filter 1321 located in the first air cavity 1314 rotates 180 degrees to enter the second air cavity 1315. At this time, the heating component 134 is turned on to heat the first filter 1321 and desorb the carbon dioxide adsorbed in the first filter 1321; the second filter 1322 originally located in the second air cavity 1315 rotates 180 degrees to enter the first air cavity 1314 to continue to perform the operation of adsorbing carbon dioxide.

[0084] As shown in the figure, four universal rollers 135 are set at the bottom of the carbon removal unit 13. When the carbon removal unit 13 receives the wide-area carbon dioxide adsorption instruction, the universal rollers 135 drive the carbon removal unit 13 to separate from the first shell 131 and move in the indoor space; when the carbon removal unit 13 receives the return to the body signal, it drives the carbon removal unit 13 back to the inside of the first shell 131 and remains stationary.

[0085] In some embodiments, as Figure 7 As shown, the oxygen enrichment unit 12 includes: a second shell 121 , a fan 122 , an oxygen enrichment membrane 123 , a pump body 124 and a filter 125 .

[0086] The second shell 121 is provided with an outdoor connecting port 1211 and a third air outlet 1212, and the first shell 131 is detachably connected to the second shell 121; the fan 122 is arranged in the shell, for guiding outdoor air from the outdoor connecting port 1211 into the second shell 121; the oxygen-enriching membrane 123 is installed in the shell, for enriching the oxygen in the outdoor air entering from the outdoor connecting port 1211; the pump body 124 is installed in the shell, for discharging the oxygen enriched by the oxygen-enriching membrane 123 from the third air outlet 1212 into the room; the filter 125 is installed in the shell, for filtering the outdoor air guided by the fan 122.

[0087] In an embodiment, outdoor air is introduced from the outdoor connecting port 1211 by the fan 122, and the outdoor air is initially filtered through the filter 125 to filter out dust and large obstacles such as leaves or waste paper. The filtered outdoor air is enriched with oxygen gas through the oxygen-enriching membrane 123, and the pump body 124 discharges the enriched oxygen into the room from the third air outlet 1212.

[0088] In some embodiments, when the carbon removal unit 13 is separated from the oxygenation unit 12, the outdoor connecting port 1211 and the third air outlet 1212 are connected; when the carbon removal unit 13 is combined with the oxygenation unit 12, the second air outlet 1312 is connected to the outdoor connecting port 1211, and the outdoor connecting port 1211 and the third air outlet 1212 are disconnected, and the carbon dioxide discharged from the adsorption filter 132 is discharged to the outside through the second air outlet 1312 and the outdoor connecting port 1211.

[0089] In an embodiment, when the carbon removal unit 13 is separated from the oxygenation unit 12, the fan 122 of the oxygenation unit 12 draws outdoor air from the outdoor connecting port 1211 into the interior of the oxygenation unit 12, so that the outdoor connecting port 1211 and the third air outlet 1212 are connected; when the carbon removal unit 13 is combined with the oxygenation unit 12, the oxygenation unit 12 is in a closed state at this time, the outdoor connecting port 1211 is disconnected from the third air outlet 1212, and the outdoor connecting port 1211 is connected to the second air outlet 1312. When the carbon removal unit 13 performs desorption of carbon dioxide, the carbon dioxide discharged from the adsorption filter 132 is discharged to the outdoors through the second air outlet 1312 and the outdoor connecting port 1211.

[0090] The following combination Figure 8 The control method for carbon removal and oxygen enrichment of an air purification device according to an embodiment of the present invention is described with examples.

[0091] The air purification device is turned on to obtain the carbon dioxide concentration value detected by the carbon dioxide concentration sensor.

[0092] It is determined that C1<C≤C2. If so, the fan of the carbon removal unit is controlled to run at the first speed.

[0093] It is determined that C≤C1 lasts for a first preset time. If so, the carbon removal unit is controlled to stop operating.

[0094] It is determined that C2<C≤C3. If so, the fan of the carbon removal unit is controlled to operate at the second speed, and the oxygen enrichment unit is controlled to operate at the first power.

[0095] It is determined whether C≤C1. If so, the power of the oxygenation unit is controlled to be reduced, and the carbon removal unit is combined with the oxygenation unit.

[0096] Determine whether X≥X1. If so, control the oxygenation unit to stop running.

[0097] It is determined that C≤C1 lasts for a first preset time. If so, the carbon removal unit is controlled to stop operating.

[0098] It is judged that C>C3. If so, the fan of the carbon removal unit is controlled to run at the second speed, the oxygenation unit is controlled to run at the second power, the carbon removal and oxygenation device starts to send a linkage signal to the air purification device to control the air supply unit to run.

[0099] It is determined that C≤C2. If so, the speed of the fan of the air supply unit is controlled to decrease, and the moving speed of the carbon removal unit is reduced.

[0100] It is determined that C≤C1. If so, the power of the oxygenation unit is reduced and the indoor unit stops operating.

[0101] According to the air purification device 1 of the embodiment of the present invention, the air supply unit 11, the oxygen enrichment unit 12 and the carbon removal unit 13 are adaptively controlled according to the size relationship between the indoor carbon dioxide concentration value and different preset concentration values, so as to disturb the air in the indoor space, achieve rapid purification of the indoor air, ensure that the indoor oxygen concentration value meets the normal needs of indoor users, improve the indoor air quality, and enhance the user experience.

[0102] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0103] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0104] In the description of the present invention, "plurality" means two or more.

[0105] In the description of the present invention, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features not being in direct contact with each other but being in contact with each other via another feature therebetween.

[0106] In the description of the present invention, “on”, “above” and “above” a first feature of a second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0107] Figure 1 Two magazines 110 are shown for illustrative purposes, but after reading the following technical solution, ordinary technicians can obviously understand that the solution can be applied to the technical solution of three or more magazines, which also falls within the scope of protection of the present invention.

[0108] Other structures and operations of the air purification device according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0109] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0110] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. An air purification device, characterized in that: include: An air supply unit, used for supplying air to the room; an oxygen enrichment unit, connected to the air supply unit, for generating oxygen; a carbon removal unit, detachably connected to the oxygenation unit, for absorbing carbon dioxide; Carbon dioxide concentration sensor, used to detect indoor carbon dioxide concentration; a controller connected to the air supply unit, the oxygen enrichment unit, the carbon removal unit and the carbon dioxide concentration sensor respectively; The controller is configured to obtain a carbon dioxide concentration value detected by the carbon dioxide concentration sensor, and when the carbon dioxide concentration value is greater than a first preset value and not greater than a second preset value, control the carbon removal unit to operate; when the carbon dioxide concentration value is greater than the second preset value and not greater than a third preset value, control the carbon removal unit and the oxygenation unit to operate, and the carbon removal unit is separated from the oxygenation unit and moves indoors; when the carbon dioxide concentration value is greater than the third preset value, control the carbon removal unit, the oxygenation unit, and the air supply unit to operate, and the carbon removal unit is separated from the oxygenation unit and moves indoors; The first preset value, the second preset value and the third preset value increase in sequence.

2. The air purification device according to claim 1, characterized in that When the carbon dioxide concentration value is not greater than the second preset value, the fan of the carbon removal unit operates at a first speed; When the carbon dioxide concentration value is greater than the second preset value, the fan of the carbon removal unit operates at a second speed; Wherein, the first rotational speed is less than the second rotational speed.

3. The air purification device according to claim 1, characterized in that When the carbon dioxide concentration value is not greater than the third preset value, the oxygen enrichment unit operates at the first power; When the carbon dioxide concentration value is greater than the third preset value, the oxygen enrichment unit operates at the second power; The first power is less than the second power.

4. The air purification device according to claim 1, characterized in that When the carbon dioxide concentration value is greater than the first preset value and not greater than the second preset value, after the carbon removal unit is in operation, if the carbon dioxide concentration value is not greater than the first preset value and lasts for a first preset time, the carbon removal unit stops operating; When the carbon dioxide concentration value is greater than the second preset value and not greater than the third preset value, after the carbon removal unit and the oxygenation unit are in operation, if the carbon dioxide concentration value is not greater than the first preset value, the power of the oxygenation unit is reduced; When the carbon dioxide concentration value is greater than the third preset value, after the indoor unit, the carbon removal unit and the oxygenation unit are in operation, if the carbon dioxide concentration value is not greater than the first preset value, the power of the oxygenation unit is reduced and the indoor unit stops operating.

5. The air purification device according to claim 4, characterized in that: When the carbon dioxide concentration value is greater than the second preset value, the carbon removal unit and the oxygenation unit are controlled to operate, and the carbon removal unit and the oxygenation unit are separated. If the carbon dioxide concentration value is not greater than the first preset value, the carbon removal unit is combined with the oxygenation unit.

6. The air purification device according to claim 4, characterized in that: When the carbon dioxide concentration value is greater than the third preset value, the carbon removal unit, the oxygenation unit and the air supply unit are controlled to operate, the carbon removal unit is separated from the oxygenation unit and moves indoors. If the carbon dioxide concentration value is not greater than the second preset value, the speed of the fan of the air supply unit is reduced and the moving speed of the carbon removal unit is reduced.

7. The air purification device according to claim 4, characterized in that: Also includes: An oxygen concentration sensor is connected to the controller and is used to detect the oxygen concentration value; When the carbon dioxide concentration value is greater than the second preset value, the decarbonization unit and the oxygenation unit are controlled to operate; after the carbon dioxide concentration value is no greater than the first preset value, if the indoor oxygen concentration value is no lower than the first preset oxygen value, the oxygenation unit stops operating.

8. The air purification device according to claim 7, characterized in that: When the carbon dioxide concentration value is greater than the second preset value, after the oxygen enrichment unit stops operating, if the carbon dioxide concentration value is not greater than the first preset value and lasts for a preset time, the carbon removal unit stops operating.

9. The air purification device according to claim 1, characterized in that: The carbon removal unit comprises: a first shell, wherein the first shell is provided with a first air outlet, a second air outlet and an indoor air inlet; an adsorption filter, the adsorption filter being mounted on the first shell and being used to absorb carbon dioxide in the air; a carbon removal fan, the carbon removal fan being installed in the first housing and being used to guide indoor air from the indoor air inlet to the adsorption filter, and to guide the air passing through the adsorption filter back into the room from the first air outlet; A heating component is installed on the first shell and is used to heat the adsorption filter to increase the temperature of the adsorption filter and discharge carbon dioxide. The carbon dioxide discharged from the adsorption filter is discharged to the outside through the second air outlet.

10. The air purification device according to claim 9, characterized in that: The first housing has a first air cavity and a second air cavity, the first air cavity is communicated with the first air outlet and the air inlet respectively, and the second air cavity is communicated with the second air outlet; The adsorption filter screens are multiple and include a first filter screen and a second filter screen. The carbon removal unit includes a first state and a second state. When the carbon removal unit is in the first state, the first filter screen is located in the first air cavity and the second filter screen is located in the second air cavity. When the carbon removal unit is in the second state, the first filter screen is located in the second air cavity and the second filter screen is located in the first air cavity. Wherein, the heating component heats the adsorption filter located in the second air cavity.

11. The air purification device according to claim 10, characterized in that: The oxygen enrichment unit comprises: a second shell, the second shell being provided with an outdoor communication port and a third air outlet, the first shell being detachably connected to the second shell; a fan, the fan being disposed in the housing and configured to guide outdoor air into the second housing from the outdoor communication port; an oxygen-enriching membrane installed in the housing and configured to enrich oxygen in the outdoor air entering through the outdoor communication port; a pump body, the pump body being installed in the housing and being used to discharge the oxygen enriched by the oxygen-enriching membrane into the room through the third air outlet; A filter screen is installed on the housing and is used to filter the outdoor air guided by the fan.

12. The air purification device according to claim 11, characterized in that When the carbon removal unit is separated from the oxygen enrichment unit, the outdoor communication port is connected to the third air outlet; When the carbon removal unit is combined with the oxygen enrichment unit, the second air outlet is connected to the outdoor connecting port, the outdoor connecting port and the third air outlet are disconnected, and the carbon dioxide discharged from the adsorption filter is discharged to the outside through the second air outlet and the outdoor connecting port.

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