Oxygen generator, its control method, and air treatment device

Abstract

The present invention discloses an oxygen generator and its control method, as well as an air treatment device. Through the settings of the first flow rate adjustment component and the second flow rate adjustment component, the air flow rate flowing towards the oxygen outlet and the oxygen flow rate flowing towards the oxygen outlet can both be adjusted, so that the oxygen concentration or the oxygen flow rate coming out of the oxygen outlet can be adjusted, thereby enriching the functions of the oxygen generator. The oxygen generator provided by the technical solution of the present invention has a continuous oxygen supply mode and a nasal inhalation mode. In the continuous oxygen supply mode, the oxygen generator can increase the oxygen content in the room or other spaces, and can improve the air quality in the room or other spaces. In the nasal inhalation mode, the user directly connects the oxygen inhalation mask to the oxygen outlet through a delivery pipe. At this time, the user can directly use the oxygen generator as a home oxygen supply device by wearing the oxygen inhalation mask, enriching the usage functions of the oxygen generator and enhancing the versatility of the oxygen generator.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification equipment, and particularly to an oxygen generator, a control method thereof, and an air treatment device. Background Art

[0002] An oxygen generator is a type of machine for producing oxygen. Its principle is to use air separation technology, adopt the adsorption performance of molecular sieves, and through physical principles, generate pressure with a large-displacement oil-free compressor to separate nitrogen and oxygen in the air, and finally obtain high-concentration oxygen. In the related prior art, the oxygen generator applied to air conditioners has a single function and usually can only improve the oxygen concentration in the room. Summary of the Invention

[0003] The main object of the present invention is to propose an oxygen generator, aiming to solve the technical problem of the single function of the oxygen generator.

[0004] To achieve the above object, the oxygen generator proposed by the present invention has an air inlet and an oxygen outlet. The oxygen generator includes a compressor, a molecular sieve, and an oxygen tank disposed on the flow path between the air inlet and the oxygen outlet; wherein, the oxygen generator further includes:

[0005] A first flow rate regulating component, disposed on the flow path between the outlet of the compressor and the oxygen outlet, for regulating the air flow rate flowing to the oxygen outlet;

[0006] A second flow rate regulating component, disposed on the flow path between the outlet of the oxygen tank and the oxygen outlet, for regulating the oxygen flow rate flowing to the oxygen outlet;

[0007] Wherein, the oxygen generator has a continuous oxygen supply mode and a nasal inhalation mode.

[0008] In the continuous oxygen supply mode, the opening degrees of the first flow rate regulating component and the second flow rate regulating component are both greater than zero.

[0009] In the nasal inhalation mode, the opening degree of the first flow rate regulating component is zero, and the opening degree of the second flow rate regulating component is greater than zero.

[0010] In one embodiment, the first flow rate regulating component includes a first flow valve and a second flow valve, and the first flow valve and the second flow valve are arranged in parallel between the outlet of the compressor and the oxygen outlet.

[0011] In one embodiment, the second flow rate regulating component includes a third flow valve and a fourth flow valve, and the third flow valve and the fourth flow valve are arranged in parallel between the outlet of the oxygen tank and the oxygen outlet.

[0012] In one embodiment, a normally open branch is further provided between the air outlet of the oxygen tank and the oxygen outlet.

[0013] In one embodiment, the third flow valve and the fourth flow valve are on-off valves.

[0014] In one embodiment, the oxygen generator further includes a control main board and a differential pressure sensor. The control main board is electrically connected to the first flow rate adjustment component and the second flow rate adjustment component respectively. The control main board is used to control the oxygen generator to switch between the continuous oxygen supply mode and the nasal inhalation mode according to the pressure state of the differential pressure sensor.

[0015] In one embodiment, the first flow rate adjustment component includes an electronic expansion valve;

[0016] And / or, the second flow rate adjustment component includes an electronic expansion valve.

[0017] The present invention also provides a control method for the foregoing oxygen generator, which determines the operating mode of the oxygen generator, wherein the operating mode of the oxygen generator includes a continuous oxygen supply mode and a nasal inhalation mode;

[0018] In the continuous oxygen supply mode, control the opening degrees of the first flow rate adjustment component and the second flow rate adjustment component to be greater than zero;

[0019] In the nasal inhalation mode, control the opening degree of the first flow rate adjustment component to be zero, and the opening degree of the second flow rate adjustment component to be greater than zero.

[0020] In one embodiment, the step of controlling the opening degree of the first flow rate adjustment component to be greater than zero includes:

[0021] Control the opening degree of the first flow valve to be greater than zero, and control the opening degree of the second flow valve to be zero;

[0022] Or, control the opening degree of the first flow valve to be zero, and control the opening degree of the second flow valve to be greater than zero.

[0023] In one embodiment, the step of controlling the opening degree of the second flow rate adjustment component to be greater than zero includes:

[0024] Control the opening degrees of the third flow valve and the fourth flow valve to be zero;

[0025] Or, control the opening degree of the third flow valve to be greater than zero, and control the opening degree of the fourth flow valve to be zero;

[0026] Or, control the opening degree of the third flow valve to be zero, and control the opening degree of the fourth flow valve to be greater than zero.

[0027] In one embodiment, the step of determining the operating mode of the oxygen generator includes:

[0028] Obtain the pressure state of the differential pressure sensor;

[0029] When it is determined that the pressure of the differential pressure sensor is positive pressure, determine that the operating mode of the oxygen generator is the continuous oxygen supply mode;

[0030] When it is determined that the pressure of the differential pressure sensor cyclically alternates between positive pressure and negative pressure, determine that the operating mode of the oxygen generator is the nasal inhalation mode.

[0031] The present invention also provides an air treatment device, the air treatment device includes the aforementioned oxygen generator, the oxygen generator has an air inlet and an oxygen outlet, and the oxygen generator includes a compressor, a molecular sieve and an oxygen tank arranged on the flow path between the air inlet and the oxygen outlet; the oxygen generator further includes a first flow rate regulating component arranged on the flow path between the air outlet of the compressor and the oxygen outlet for regulating the air flow rate flowing to the oxygen outlet; a second flow rate regulating component arranged on the flow path between the air outlet of the oxygen tank and the oxygen outlet for regulating the oxygen flow rate flowing to the oxygen outlet; wherein, the oxygen generator has a continuous oxygen supply mode and a nasal inhalation mode, in the continuous oxygen supply mode, the opening degrees of the first flow rate regulating component and the second flow rate regulating component are both greater than zero; in the nasal inhalation mode, the opening degree of the first flow rate regulating component is zero, and the opening degree of the second flow rate regulating component is greater than zero.

[0032] In one embodiment, the air treatment device is an air conditioner.

[0033] In one embodiment, the air conditioner includes a main air duct and / or a purification air duct;

[0034] In the continuous oxygen supply mode, the oxygen outlet communicates with the main air duct; and / or, the oxygen outlet communicates with the purification air duct;

[0035] In the nasal inhalation mode, the oxygen outlet communicates with the device for nasal inhalation of oxygen by the user.

[0036] Through the settings of the first flow rate regulating component and the second flow rate regulating component, the technical solution of the present invention enables the regulation of both the air flow rate and the oxygen flow rate flowing towards the oxygen outlet. As a result, the oxygen concentration or the oxygen flow rate coming out of the oxygen outlet can be adjusted, thereby enriching the functions of the oxygen generator and enhancing the user experience of the oxygen generator. In addition, the oxygen generator provided by the technical solution of the present invention has a continuous oxygen supply mode and a nasal inhalation mode. In the continuous oxygen supply mode, the oxygen generator can increase the oxygen content in the room or other spaces, and can improve the air quality in the room or other spaces. In the nasal inhalation mode, the user can directly connect the oxygen inhalation mask to the oxygen outlet through the delivery pipeline. At this time, the user can directly use the oxygen generator as a home oxygen supply device by wearing the oxygen inhalation mask. Thus, the technical solution of the present invention enriches the usage functions of the oxygen generator and enhances the versatility of the oxygen generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0038] Figure 1 It is a schematic diagram of the structural principle of an oxygen generator according to an embodiment of the present invention;

[0039] Figure 2 It is a schematic diagram of the structure according to an embodiment of the present invention;

[0040] Figure 3 For Figure 2 a partial internal structure diagram of the oxygen generator in;

[0041] Figure 4 For Figure 3 a side view of;

[0042] Figure 5 For Figure 2 a schematic diagram of the structure with the outer shell removed;

[0043] Figure 6 For Figure 5 a side view of;

[0044] Figure 7 For Figure 6 a cross-sectional view taken along A-A in;

[0045] Explanation of the reference numerals in the drawings:

[0046]

[0047] The realization, functional features and advantages of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0049] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present invention, such directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0050] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0051] An oxygen generator is used to inhale indoor air or outdoor air into its oxygen generation chamber, and then generate an oxygen-rich air stream and a nitrogen-rich air stream rich in nitrogen in the oxygen generation chamber. In the oxygen generation chamber, there is an oxygen generation component, and among them, the oxygen generation component includes any one or both of an oxygen generation molecular sieve and an oxygen-enriched membrane. The oxygen generation principle of the oxygen generation molecular sieve refers to separating and preparing oxygen from the air by using the adsorption characteristics of the molecular sieve at normal temperature. The oxygen generation principle of the oxygen-enriched membrane is to utilize the different permeation rates of each component in the air when passing through the membrane. Under the drive of a pressure difference, oxygen in the air preferentially passes through the membrane to obtain oxygen-enriched air.

[0052] Specifically, the oxygen-rich air stream is sent from the oxygen-rich air outlet to be temporarily stored in the oxygen tank, and then after adjusting the appropriate oxygen concentration content, it is sent to the indoor room; while the nitrogen-rich air stream is discharged from the nitrogen-rich exhaust port to the outside. Of course, in order to further improve the user experience, the oxygen generator is often used in combination with an air treatment device. In the air treatment device, the oxygen-rich air stream is sent from the oxygen-rich air outlet to the air duct of the air treatment device body, and then the air is purified, temperature-adjusted or humidified in the air duct and then sent to the indoor room; while the nitrogen-rich air stream is discharged from the nitrogen-rich exhaust port to the outside.

[0053] The present invention provides an oxygen generator, aiming to enrich the functions of the oxygen generator to improve the versatility of the oxygen generator.

[0054] In an embodiment of the present invention, as Figures 1 to 7 shown, the oxygen generator 10 has an air inlet and an oxygen outlet 12. The oxygen generator 10 includes a compressor 100, a molecular sieve 200, and an oxygen tank 300 disposed on the flow path between the air inlet and the oxygen outlet 12; the oxygen generator 10 further includes a first flow rate adjustment component 400 disposed on the flow path between the outlet of the compressor 100 and the oxygen outlet 12 for adjusting the air flow rate flowing to the oxygen outlet 12; a second flow rate adjustment component 500 disposed on the flow path between the outlet of the oxygen tank 300 and the oxygen outlet 12 for adjusting the oxygen flow rate flowing to the oxygen outlet 12; wherein, the oxygen generator 10 has a continuous oxygen supply mode and a nasal inhalation mode. In the continuous oxygen supply mode, the opening degrees of the first flow rate adjustment component 400 and the second flow rate adjustment component 500 are both greater than zero; in the nasal inhalation mode, the opening degree of the first flow rate adjustment component 400 is zero, and the opening degree of the second flow rate adjustment component 500 is greater than zero.

[0055] Specifically, the oxygen generator 10 includes a housing and an oxygen generation assembly. The oxygen generator 10 has an air inlet and an oxygen outlet 12. The oxygen generator 10 includes a compressor 100, a molecular sieve 200, and an oxygen tank 300 disposed on the flow path between the air inlet and the oxygen outlet 12. In this way, external air enters the compressor 100 through the air inlet. After being pressurized by the compressor 100, the gas coming out of the air outlet of the compressor 100 can be divided into two paths. One path forms a rich oxygen stream after passing through the molecular sieve 200 and then flows into the oxygen tank 300, and then flows out from the oxygen outlet 12 of the oxygen generator 10. In addition, in order to make the oxygen concentration of the oxygen generator 10 adjustable, the other air stream coming out of the compressor 100 is mixed with the rich oxygen stream coming out of the oxygen tank 300. Specifically, the oxygen generator 10 further includes a first flow rate adjustment assembly 400 disposed on the flow path between the air outlet of the compressor 100 and the oxygen outlet 12. The opening degree of the first adjustment assembly can be adjusted. When the air output of the oxygen tank 300 is constant, the oxygen concentration can be adjusted by adjusting the air flow rate flowing to the oxygen outlet 12.

[0056] Furthermore, in order to further enrich the functions of the oxygen generator 10, the oxygen flow rate of the oxygen generator 10 is set to be adjustable. Specifically, the oxygen generator 10 further includes a second flow rate adjustment assembly 500. The second flow rate adjustment assembly 500 is disposed on the flow path between the air outlet of the oxygen tank 300 and the oxygen outlet 12, and the opening degree of the second flow rate adjustment assembly 500 can be adjusted, so that the oxygen flow rate flowing to the oxygen outlet 12 is adjustable.

[0057] In addition, the oxygen generator 10 provided by the present invention can be used directly, or can be installed on an air treatment device or an air conditioner for use. The oxygen generator 10 installed on the air treatment device or the air conditioner can also be disassembled and used directly. The oxygen generator 10 has a continuous oxygen supply mode and a nasal inhalation mode. Among them, the continuous oxygen supply mode refers to the scenario where the user adds oxygen to the indoor or required space. At this time, the oxygen generator 10 directly delivers oxygen to the indoor or other spaces that need oxygen supply through the oxygen outlet 12. The nasal inhalation mode means that the user directly connects an oxygen inhalation mask to the oxygen outlet 12 through a delivery pipe. In this way, the user can directly use the oxygen generator 10 as a home oxygen supply device by wearing the oxygen inhalation mask. In this way, the use function of the oxygen generator 10 is enriched by adding the nasal inhalation mode, and the versatility of the oxygen generator 10 is improved.

[0058] Specifically, the oxygen generator 10 controls the oxygen flow rate and oxygen concentration of the oxygen generator 10 by adjusting the opening degrees of the first flow component and the second flow adjustment component 500. In the continuous oxygen supply mode, the opening degrees of the first flow adjustment component 400 and the second flow adjustment component 500 are both greater than zero; in this way, the user can adjust the oxygen flow rate and oxygen concentration by controlling the opening degrees of the first flow adjustment component 400 and the second flow adjustment component 500. Considering that the nasal inhalation mode generally uses pure oxygen, thus, in the nasal inhalation mode, the opening degree of the first flow adjustment component 400 is zero, and the opening degree of the second flow adjustment component 500 is greater than zero, and the oxygen flow rate can be adjusted by adjusting the opening degree of the second flow adjustment component 500.

[0059] It should be noted that the first flow adjustment component 400 or the second flow adjustment component 500 includes, but is not limited to, a switching valve or an electronic expansion valve.

[0060] When the first flow adjustment component 400 uses a switching valve, multiple switching valves need to be arranged in parallel. Each switching valve can form an independent flow branch. By controlling the opening or closing of the switching valve, the conduction or blockage of the flow branch can be controlled, so as to realize that the opening degree of the first adjustment component can be adjusted. When the oxygen output of the oxygen tank 300 is certain, the oxygen concentration can be adjusted by adjusting the air flow rate flowing to the oxygen outlet 12. When the first flow adjustment component 400 is an electronic expansion valve, the air flow rate flowing to the oxygen outlet 12 can be directly adjusted by adjusting the opening degree of the electronic expansion valve.

[0061] When the second flow adjustment component 500 uses a switching valve, a normally open branch 900 is provided between the air outlet of the oxygen tank 300 and the oxygen outlet 12. Multiple switching valves need to be arranged in parallel. Each switching valve can form an independent flow branch. By controlling the opening or closing of the switching valve, the conduction or blockage of the flow branch can be controlled, so as to realize that the opening degree of the second adjustment component can be adjusted. When the second flow adjustment component 500 is an electronic expansion valve, the oxygen flow rate flowing to the oxygen outlet 12 can be directly adjusted by adjusting the opening degree of the electronic expansion valve.

[0062] It can be understood that when the first flow rate regulating component 400 or the second flow rate regulating component 500 selects a switching valve, the opening degree of the first flow rate regulating component 400 or the second flow rate regulating component 500 being greater than zero means that at least one switching valve in the first flow rate regulating component 400 and the second flow rate regulating component 500 is in an open state. Conversely, when the opening degree of the first flow rate regulating component 400 or the second flow rate regulating component 500 is zero, it means that all the switching valves of the first flow rate regulating component 400 or the second flow rate regulating component 500 are in a closed state. When the first flow rate regulating component 400 and the second flow rate regulating component 500 select an electronic expansion valve, the opening degree of the first flow rate regulating component 400 or the second flow rate regulating component 500 refers to the degree to which the valve of the electronic expansion valve is opened. For example, the valve can be fully closed, half open, fully open, etc. Even more, the electronic expansion valve can achieve stepless regulation.

[0063] Through the settings of the first flow rate regulating component 400 and the second flow rate regulating component 500 in the technical solution of the present invention, the air flow rate flowing to the oxygen outlet 12 and the oxygen flow rate flowing to the oxygen outlet 12 can both be adjusted. The oxygen concentration or oxygen flow rate coming out of the oxygen outlet 12 can be adjusted, thereby enriching the functions of the oxygen generator 10 and improving the user experience of the oxygen generator 10. In addition, since the oxygen concentration or oxygen flow rate coming out of the oxygen outlet 12 can be adjusted, the oxygen generator 10 provided by the technical solution of the present invention has a continuous oxygen supply mode and a nasal inhalation mode. In the continuous oxygen supply mode, the oxygen generator 10 can increase the oxygen content in the room or other spaces, and can improve the air quality in the room or other spaces. In the nasal inhalation mode, the user directly connects the oxygen inhalation mask to the oxygen outlet 12 through a delivery pipe. At this time, the user can directly use the oxygen generator 10 as a home oxygen supply device by wearing the oxygen inhalation mask. Thus, the technical solution of the present invention enriches the usage functions of the oxygen generator 10 and improves the versatility of the oxygen generator 10.

[0064] In one embodiment, considering that the electronic expansion valve is more prone to failure and its manufacturing cost is also higher than that of an ordinary on-off valve, and in order to be closer to the user's usage environment, generally, three oxygen concentration adjustments can meet the oxygen usage requirements of most users. In view of this, the first flow rate adjustment component 400 selects a flow valve of the on-off valve type. Specifically, the first flow rate adjustment component 400 includes a first flow valve 410 and a second flow valve 420, and the first flow valve 410 and the second flow valve 420 are arranged in parallel between the outlet of the compressor 100 and the oxygen outlet 12. Thus, when the oxygen output of the oxygen tank 300 is constant, the oxygen generator 10 can control the opening degrees of both the first flow valve 410 and the second flow valve 420 to be zero; or, control the opening degree of the first flow valve 410 to be zero or the opening degree of the second flow valve 420 to be zero; or, control the opening degrees of both the first flow valve 410 and the second flow valve 420 to be greater than zero, so as to provide airflows with three oxygen concentrations for users.

[0065] In one embodiment, for the same reason as in the previous embodiment, the first flow rate adjustment component 400 selects a flow valve of the on-off valve type. Specifically, considering that the purpose of the oxygen generator 10 to generate oxygen is to obtain oxygen with a higher concentration than ordinary air, it can be seen that when the oxygen generator 10 is working, after being processed by the molecular sieve 200, the oxygen entering the oxygen tank 300 must be connected to the oxygen outlet 12 of the oxygen generator 10. Thus, in order to simplify the structure of the oxygen generator 10, a normally open branch 900 is provided between the outlet of the oxygen tank 300 and the oxygen outlet 12. Of course, it should be understood that the flow rate of the normally open branch 900 will not be too large, and it can meet the flow rate of the minimum oxygen usage requirement.

[0066] On the basis of the previous embodiment, in order to be closer to the user's usage environment, generally, three oxygen concentration adjustments can meet the oxygen usage requirements of most users. The second flow rate adjustment component 500 includes a third flow valve 510 and a fourth flow valve 520, and the third flow valve 510 and the fourth flow valve 520 are arranged in parallel between the outlet of the oxygen tank 300 and the oxygen outlet 12. In this way, by increasing the opening or closing of the third flow valve 510 or the fourth flow valve 520, the oxygen output of the oxygen tank 300 can be adjusted, and at the same time, it is also three-stage adjustable.

[0067] In one embodiment, the oxygen generator 10 further includes a control main board 610 and a differential pressure sensor 700. The control main board 610 is electrically connected to the first flow rate adjustment component 400 and the second flow rate adjustment component 500 respectively, and the control main board 610 is used to control the oxygen generator 10 to switch between the continuous oxygen supply mode and the nasal inhalation mode according to the pressure state of the differential pressure sensor 700.

[0068] Specifically, the control main board 610 is disposed within the electric control box 600. The control main board 610 is electrically connected to the first flow rate adjustment component 400 and the second flow rate adjustment component 500 respectively. When the control main board 610 receives a positive pressure from the differential pressure sensor 700 or a small fluctuation within a certain range, at this time, the control main board 610 determines the operation mode of the oxygen generator 10 as the continuous oxygen supply mode, and then executes the relevant steps of the continuous oxygen supply mode. When the control main board 610 receives the pressure from the differential pressure sensor 700 that cyclically alternates between positive pressure and negative pressure, it determines that the operation mode of the oxygen generator 10 is the nasal inhalation mode, and then executes the relevant steps of the nasal inhalation mode.

[0069] In one embodiment, in order to further enrich the functions of the oxygen generator 10 and improve the user experience of the oxygen generator 10, the oxygen generator 10 further includes an oxygen concentration sensor 800, and the oxygen concentration sensor 800 is electrically connected to the control main board 610. The control main board 610 can obtain the data from the oxygen concentration sensor 800 and display the real-time data on the display screen. In this way, the user can directly know the real-time oxygen concentration value so as to adjust according to their needs. In addition, when the first flow rate adjustment component 400 includes an electronic expansion valve; and / or when the second flow rate adjustment component 500 includes an electronic expansion valve, the control main board 610 is further configured to adjust the opening degree of the first flow rate adjustment component 400 or the second flow rate adjustment component 500 according to the target oxygen concentration and the actual oxygen concentration detected by the oxygen concentration sensor 800 to achieve stepless adjustment.

[0070] The present invention also provides a control method for the foregoing oxygen generator 10. In this embodiment, the oxygen generator 10 has an air inlet and an oxygen outlet 12. The oxygen generator 10 includes a compressor 100, a molecular sieve 200, and an oxygen tank 300 disposed on the flow path between the air inlet and the oxygen outlet 12; the oxygen generator 10 further includes a first flow rate adjustment component 400 and a first flow rate adjustment component 400. The first flow rate adjustment component 400 is disposed on the flow path between the air outlet of the compressor 100 and the oxygen outlet 12 for adjusting the air flow rate flowing to the oxygen outlet 12; the second flow rate adjustment component 500 is disposed on the flow path between the air outlet of the oxygen tank 300 and the oxygen outlet 12 for adjusting the oxygen flow rate flowing to the oxygen outlet 12. And the oxygen generator 10 has a continuous oxygen supply mode and a nasal inhalation mode. In the continuous oxygen supply mode, the opening degrees of the first flow rate adjustment component 400 and the second flow rate adjustment component 500 are both greater than zero; in the nasal inhalation mode, the opening degree of the first flow rate adjustment component 400 is zero, and the opening degree of the second flow rate adjustment component 500 is greater than zero.

[0071] Among them, the continuous oxygen supply mode and the nasal inhalation mode can be switched, and there are two switching methods.

[0072] First, set keys for the continuous oxygen supply mode and the nasal inhalation mode on the oxygen generator 10 or the controller of the oxygen generator 10. After the user presses the continuous oxygen supply mode, the control main board 610 will receive an instruction to turn on the continuous oxygen supply mode; the oxygen generator 10 executes the steps of the continuous oxygen supply mode.

[0073] Second, in the embodiment provided with the differential pressure sensor 700, it is also possible to determine whether the received instruction is an instruction to turn on the continuous oxygen supply mode or an instruction to turn on the nasal inhalation mode according to the pressure state of the differential pressure sensor 700.

[0074] Further, the control method of the oxygen generator 10 includes the following steps:

[0075] Determine the operating mode of the oxygen generator 10, where the operating mode of the oxygen generator 10 includes a continuous oxygen supply mode and a nasal inhalation mode;

[0076] In the continuous oxygen supply mode, control the opening degrees of the first flow rate regulating component 400 and the second flow rate regulating component 500 to be greater than zero;

[0077] In the nasal inhalation mode, control the opening degree of the first flow rate regulating component 400 to be zero, and the opening degree of the second flow rate regulating component 500 to be greater than zero.

[0078] Further, in another preferred embodiment, the oxygen generator 10 further includes a control main board 610 and a differential pressure sensor 700. The control main board 610 is electrically connected to the first flow rate regulating component 400 and the second flow rate regulating component 500 respectively. The control main board 610 is used to control the oxygen generator 10 to switch between the continuous oxygen supply mode and the nasal inhalation mode according to the pressure state of the differential pressure sensor 700.

[0079] Specifically, the step of determining the operating mode of the oxygen generator 10 includes:

[0080] Obtain the pressure state of the differential pressure sensor 700;

[0081] When it is determined that the pressure of the differential pressure sensor 700 is positive pressure, determine that the operating mode of the oxygen generator 10 is the continuous oxygen supply mode;

[0082] When it is determined that the pressure of the differential pressure sensor 700 is periodically rotated between positive pressure and negative pressure, determine that the operating mode of the oxygen generator 10 is the nasal inhalation mode.

[0083] Based on the previous embodiment, after the control main board 610 receives an instruction to turn on the continuous oxygen supply mode, in order to make the air flow rate flowing to the oxygen outlet 12 adjustable, and further make the oxygen concentration of the air flow flowing to the oxygen outlet 12 adjustable, in this embodiment, it is adjusted by controlling the opening degree of the first flow rate adjustment assembly 400.

[0084] Specifically, the first flow rate adjustment assembly 400 includes a first flow valve 410 and a second flow valve 420. The first flow valve 410 and the second flow valve 420 are arranged in parallel between the air outlet of the compressor 100 and the oxygen outlet 12. Among them, the steps of controlling the opening degree of the first flow rate adjustment assembly 400 to be greater than zero include:

[0085] Controlling the opening degree of the first flow valve 410 to be greater than zero, and controlling the opening degree of the second flow valve 420 to be zero;

[0086] Or, controlling the opening degree of the first flow valve 410 to be zero, and controlling the opening degree of the second flow valve 420 to be greater than zero.

[0087] Based on the previous embodiment, after the control main board 610 receives an instruction to turn on the nasal inhalation mode, in order to make the oxygen flow rate flowing to the oxygen outlet 12 adjustable, and further make the oxygen flow rate size flowing to the oxygen outlet 12 adjustable, in this embodiment, it is adjusted by controlling the opening degree of the second flow rate adjustment assembly 500.

[0088] Specifically, the second flow rate adjustment assembly 500 includes a third flow valve 510 and a fourth flow valve 520. The third flow valve 510 and the fourth flow valve 520 are arranged in parallel between the air outlet of the oxygen tank 300 and the oxygen outlet 12. Among them, the steps of controlling the opening degree of the second flow rate adjustment assembly 500 to be greater than zero include:

[0089] Controlling the opening degrees of both the third flow valve 510 and the fourth flow valve 520 to be zero;

[0090] Or, controlling the opening degree of the third flow valve 510 to be greater than zero, and controlling the opening degree of the fourth flow valve 520 to be zero;

[0091] Or, controlling the opening degree of the third flow valve 510 to be zero, and controlling the opening degree of the fourth flow valve 520 to be greater than zero.

[0092] The present invention also provides an air treatment device, which includes an air treatment device body and an oxygen generator. The specific structure of the oxygen generator refers to the above embodiments. Since this air treatment device adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one. Among them, the oxygen generator is installed in the air treatment device body. The air inlet of the oxygen generator can be directly connected to the indoor environment or connected to the outdoor environment through a pipeline. The oxygen generator is used to suck indoor air or outdoor air from the air inlet into its oxygen generation chamber, and then generate an oxygen-rich air stream and a nitrogen-rich air stream rich in nitrogen in the oxygen generation chamber. Among them, the oxygen-rich air stream is sent to the air duct of the air treatment device body from the oxygen-rich air outlet, and then the air is purified, temperature-adjusted or humidified in the air duct, and then sent to the indoor room, so as to obtain higher-quality oxygen for users.

[0093] In one embodiment, the air treatment device is an air conditioner, and the air conditioner includes, but is not limited to, a floor-standing air conditioner or a wall-mounted air conditioner.

[0094] Specifically, a main air duct and / or a purification air duct are formed in the air conditioner; that is to say, the air conditioner includes at least a main air duct, a purification air duct, and the case of both the main air duct and the purification air duct.

[0095] In the continuous oxygen supply mode, the oxygen outlet is connected to the main air duct; and / or, the oxygen outlet is connected to the purification air duct. That is to say, when the air conditioner only has a main air duct, the oxygen outlet of the oxygen generator is connected to the main air duct; at this time, the oxygen-rich air stream coming out of the oxygen outlet can be mixed with the air conditioner air and blown out, which can increase the flow rate of the oxygen-rich air stream and make the oxygen content in the space where the air conditioner is used more uniform. When the air conditioner only has a purification air duct, the oxygen outlet of the oxygen generator is connected to the purification air duct; at this time, the oxygen-rich air stream purified by the purification air duct has higher oxygen quality, which can further improve the user's oxygen use experience and the user experience of the air conditioner. Of course, there is also the case where the air conditioner includes both a main air duct and a purification air duct. At this time, the oxygen outlet of the oxygen generator can be connected to either the main air duct or the purification air duct, or can be connected to the air duct according to the switching needs of the operation mode of the air conditioner main unit. For example, when the air conditioner selects to operate in the purification mode and the oxygen-rich mode, the oxygen outlet is connected to the purification air duct.

[0096] In the nasal inhalation mode, the oxygen outlet is connected to the device for nasal inhalation of oxygen by the user. It should be understood that the air conditioner itself can be equipped with a device for nasal inhalation of oxygen by the user, and the air conditioner can directly switch the oxygen outlet to be connected to the device for nasal inhalation of oxygen by the user according to the current operation mode. Of course, the oxygen outlet can also be released from other air ducts, and then the user manually connects the device for nasal inhalation of oxygen by the user to the oxygen outlet.

[0097] It should be noted that the purification air duct described here not only refers to the air duct with a purification filter for removing impurities or sterilization, but also includes the air duct for temperature adjustment or humidification.

[0098] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An oxygen generator, the oxygen generator having an air inlet and an oxygen outlet, the oxygen generator comprising a compressor, a molecular sieve and an oxygen tank disposed on a flow path between the air inlet and the oxygen outlet; characterized in that, The oxygen generator further includes: A first flow rate adjustment component, disposed on the flow path between the air outlet of the compressor and the oxygen outlet, for adjusting the air flow rate flowing to the oxygen outlet; A second flow rate adjustment component, disposed on the flow path between the air outlet of the oxygen tank and the oxygen outlet, for adjusting the oxygen flow rate flowing to the oxygen outlet; Wherein, the oxygen generator has a continuous oxygen supply mode and a nasal inhalation mode, In the continuous oxygen supply mode, the opening degrees of the first flow rate adjustment component and the second flow rate adjustment component are both greater than zero; In the nasal inhalation mode, the opening degree of the first flow rate adjustment component is zero, and the opening degree of the second flow rate adjustment component is greater than zero; A normally open branch is further provided between the air outlet of the oxygen tank and the oxygen outlet.

2. The oxygen generator according to claim 1, characterized in that, The first flow rate adjustment component includes a first flow valve and a second flow valve, and the first flow valve and the second flow valve are arranged in parallel between the air outlet of the compressor and the oxygen outlet.

3. The oxygen generator according to claim 1, characterized in that, The second flow rate adjustment component includes a third flow valve and a fourth flow valve, and the third flow valve and the fourth flow valve are arranged in parallel between the air outlet of the oxygen tank and the oxygen outlet.

4. The oxygen generator according to claim 3, characterized in that, The third flow valve and the fourth flow valve are on-off valves.

5. The oxygen generator according to claim 1, wherein The first flow rate adjustment component includes an electronic expansion valve; And / or, the second flow rate adjustment component includes an electronic expansion valve.

6. The oxygen generator according to claim 1, characterized in that, The oxygen generator further includes a control main board and a differential pressure sensor. The control main board is electrically connected to the first flow rate adjustment component and the second flow rate adjustment component respectively, and the control main board is used to control the oxygen generator to switch between the continuous oxygen supply mode and the nasal inhalation mode according to the pressure state of the differential pressure sensor.

7. A control method for an oxygen generator, characterized in that, The control method is applied to the oxygen generator according to any one of claims 1 to 6, and the control method includes the following steps: Determine the operating mode of the oxygen generator, wherein the operating mode of the oxygen generator includes a continuous oxygen supply mode and a nasal inhalation mode; In the continuous oxygen supply mode, control the opening degrees of the first flow rate adjustment component and the second flow rate adjustment component to be both greater than zero; In the nasal inhalation mode, control the opening degree of the first flow rate adjustment component to be zero, and the opening degree of the second flow rate adjustment component to be greater than zero.

8. The control method of the oxygen generator according to claim 7, characterized in that, The first flow rate adjustment component includes a first flow valve and a second flow valve, and the first flow valve and the second flow valve are arranged in parallel between the air outlet of the compressor and the oxygen outlet; The step of controlling the opening degree of the first flow rate adjustment component to be greater than zero includes: Control the opening degree of the first flow valve to be greater than zero, and control the opening degree of the second flow valve to be zero; Or, control the opening degree of the first flow valve to be zero, and control the opening degree of the second flow valve to be greater than zero.

9. The control method of the oxygen generator according to claim 7, characterized in that, The second flow rate adjustment component includes a third flow valve and a fourth flow valve, and the third flow valve and the fourth flow valve are arranged in parallel between the air outlet of the oxygen tank and the oxygen outlet; The step of controlling the opening degree of the second flow rate adjustment component to be greater than zero includes: Control the opening degrees of the third flow valve and the fourth flow valve to be both zero; Or, control the opening degree of the third flow valve to be greater than zero, and control the opening degree of the fourth flow valve to be zero; Alternatively, control the opening degree of the third flow valve to zero, and control the opening degrees of the fourth flow valves to be greater than zero.

10. The control method of the oxygen generator according to claim 7, characterized in that, The oxygen generator further includes a control main board and a differential pressure sensor. The control main board is electrically connected to the first flow rate adjustment component and the second flow rate adjustment component respectively. The control main board is configured to control the oxygen generator to switch between the continuous oxygen supply mode and the nasal inhalation mode according to the pressure state of the differential pressure sensor. The step of determining the operation mode of the oxygen generator includes: Obtain the pressure state of the differential pressure sensor; When it is determined that the pressure of the differential pressure sensor is positive pressure, determine that the operation mode of the oxygen generator is the continuous oxygen supply mode; When it is determined that the pressure of the differential pressure sensor periodically alternates between positive pressure and negative pressure, determine that the operation mode of the oxygen generator is the nasal inhalation mode.

11. An air treatment device, characterized in that, It includes the oxygen generator according to any one of claims 1 to 6.

12. The air treatment device according to claim 11, wherein, The air treatment device is an air conditioner.

13. The air handling device according to claim 12, characterized in that, The air conditioner includes a main air duct and / or a purification air duct; In the continuous oxygen supply mode, the oxygen outlet communicates with the main air duct; and / or, the oxygen outlet communicates with the purification air duct; In the nasal inhalation mode, the oxygen outlet communicates with the device for nasal inhalation of oxygen by the user.

Images