Oxygen generator capable of adjusting temperature and humidity

Abstract

The invention provides an oxygen generator capable of adjusting temperature and humidity, and belongs to the technical field of oxygen generation equipment, the oxygen generator comprises a case, an air inlet is formed in the top of the case, and an air inlet filter for filtering air is fixedly mounted in the air inlet; an air outlet is formed in the bottom of the case; the air compressor assembly is installed in the machine box, and the air compressor assembly is used for pressurizing air; the molecular sieve assembly is connected with the air compressor assembly through a pipeline, and the molecular sieve assembly is used for separating oxygen in the air; the S-shaped channel is formed in the water storage box, the path length of oxygen penetrating through clean water can be controlled by switching different air inlet pipes, then the humidity of the oxygen is adjusted, and the experience feeling of a user is improved; meanwhile, heat generated by the air compressor assembly is used for heating the lower humidifying disc, on one hand, a heating system does not need to be independently arranged, the manufacturing cost is reduced, on the other hand, the heat generated by the air compressor assembly is reasonably used, and energy waste is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen production equipment, and in particular to an oxygen production machine capable of adjusting temperature and humidity. Background Art

[0002] An oxygen concentrator is a medical device that uses the principle of molecular sieve to separate nitrogen and other impurities in the atmosphere, leaving only pure oxygen, which is then output after being pressurized. However, the oxygen output by the oxygen concentrator has a relatively low water content, which may cause adverse reactions such as dry cough and dry mouth, so humidification is required.

[0003] At present, the common humidification method of oxygen concentrators generally uses a humidifier bottle. When using a humidifier bottle, it is necessary to fill the humidifier bottle with clean water and install the humidifier bottle at the air outlet of the oxygen concentrator. After the oxygen enters from the air inlet of the humidifier bottle, it is directly passed into the water in the humidifier bottle. After being fully in contact with the water, it will entrain some water vapor after being discharged from the water surface, thereby increasing the humidity. The humidified oxygen is discharged from the outlet of the humidifier bottle and supplied for use. Although this solution is portable, there are two problems: first, when the user is in a low temperature environment, if the inhaled oxygen is not heated, it will cause the inhaled oxygen to be too cold, affecting the user experience; second, the humidity is constant after the oxygen is humidified, and the humidity cannot be adjusted according to the user's needs, which will reduce the user experience.

[0004] For example, the utility model patent with publication number CN221808458U discloses a modular oxygen concentrator, which provides a humidifier to enable the oxygen concentrator to have the function of regulating humidity, thus avoiding problems such as respiratory discomfort caused by long-term inhalation of dry oxygen. However, the oxygen humidity output by the disclosed solution is constant, and different users have different requirements for oxygen humidity, which leads to a reduced user experience for some users. Summary of the invention

[0005] The invention provides an oxygen concentrator with adjustable temperature and humidity, so as to solve the technical problem that the oxygen humidity of the oxygen concentrator is difficult to adjust in the prior art.

[0006] In order to solve the above problems, the oxygen concentrator with adjustable temperature and humidity provided by the present invention adopts the following technical solution: comprising a chassis, an air inlet is provided on the top of the chassis, an air inlet filter for filtering air is fixedly installed in the air inlet; an air outlet is provided at the bottom of the chassis;

[0007] An air compressor assembly is installed inside the chassis and is used to pressurize the air;

[0008] Molecular sieve assembly, the molecular sieve assembly is connected to the air compressor assembly through a pipeline, and the molecular sieve assembly is used to separate oxygen from the air;

[0009] It also includes a top load-bearing plate and a bottom load-bearing plate, both of which are provided with ventilation holes;

[0010] The top load-bearing plate is fixedly installed above the inside of the chassis, and an upper accommodating cavity is formed between the top load-bearing plate and the top plate of the chassis; the bottom load-bearing plate is fixedly installed below the inside of the chassis, and a lower accommodating cavity is formed between the bottom load-bearing plate and the bottom plate of the chassis;

[0011] An upper humidifying plate, wherein clean water is stored inside the upper humidifying plate for humidifying oxygen, and the upper humidifying plate is installed in the upper accommodating chamber, and a gap is reserved between the upper humidifying plate and the side wall of the upper accommodating chamber for air to pass through; the upper humidifying plate includes a water storage box, and a humidity regulating mechanism for regulating the humidity of oxygen is provided in the water storage box;

[0012] The heat dissipation fan is fixedly installed above the air compressor assembly, and the air outlet of the heat dissipation fan faces the air compressor assembly to take away the heat generated by the air compressor assembly;

[0013] The lower humidifying plate is installed in the lower accommodating chamber, and the structure of the lower humidifying plate is the same as that of the upper humidifying plate; the heat dissipation fan flows the heat generated by the air compressor assembly to the lower accommodating chamber and discharges it out of the chassis from the air outlet. The heat generated by the air compressor assembly heats the water in the lower humidifying plate when passing through the lower accommodating chamber.

[0014] As a further improvement, the humidity regulating mechanism includes an S-shaped channel arranged in a water storage box, and an outlet pipe for discharging oxygen and a plurality of inlet pipes for discharging oxygen are installed on the side of the water storage box. The outlet pipe is connected to the end of the S-shaped channel, and the inlet pipes are respectively arranged at the corners of the S-shaped channel and communicated with the S-shaped channel. The inlet pipe is also connected to a sealing structure. When the oxygen outlet pipe of the molecular sieve assembly is connected to one of the inlet pipes, the other inlet pipes are sealed.

[0015] As a further improvement, the water storage box is provided with a plurality of partitions spaced apart along the left-right direction, through holes are reserved between the partitions and the inner wall of the water storage box, and the through holes of adjacent partitions are staggered front to back, so that an S-shaped channel is formed inside the upper water storage box.

[0016] As a further improvement, the height of the air outlet pipe is higher than the height of the upper humidifying plate to prevent clean water from being discharged from the air outlet pipe.

[0017] As a further improvement, support plates are fixedly installed at both the front and rear ends of the water storage box, and the area of ​​the support plates is larger than the area of ​​the front end or rear end surface of the water storage box, so that a gap is left between the water storage box and the upper accommodating cavity for air circulation.

[0018] As a further improvement, the sealing structure includes an air inlet cover and a plurality of sealing covers.

[0019] As a further improvement, the air intake cover and the sealing cover are both provided with sealing rings that cooperate with the air intake pipe.

[0020] As a further improvement, the air intake cover and the sealing cover are both connected to the air intake pipe via threads.

[0021] As a further improvement, the air outlet pipe and the air inlet pipe are both elbow pipes.

[0022] As a further improvement, the air intake filter is provided with a plurality of spring sheets distributed along the circumferential direction to facilitate the removal of the air intake filter.

[0023] The beneficial effects of the above technical solution of the present invention are as follows:

[0024] 1. The present invention sets an S-shaped channel in the water storage box and sets an air inlet pipe at the corner of the S-shaped channel. By switching different air inlet pipes, the path length of oxygen passing through the clean water can be controlled, thereby adjusting the humidity of the oxygen. Users can adjust the humidity of the oxygen to a humidity suitable for themselves according to their own needs, thereby improving the user experience.

[0025] 2. The present invention is provided with an upper humidification plate and a lower humidification plate, wherein the interior of the upper humidification plate is water at normal temperature, and the interior of the lower humidification plate is hot water; in a cold environment, the oxygen pipeline is switched to the lower humidification plate to increase the temperature of the discharged oxygen, thereby increasing the oxygen temperature, providing warm and humidified oxygen to the user, and improving the user's experience.

[0026] In the present invention, the lower humidifying plate is located below the air compressor assembly, and the heat generated by the air compressor assembly is used to heat the lower humidifying plate. On the one hand, there is no need to set up a separate heating system, which reduces the manufacturing cost. On the other hand, the heat generated by the air compressor assembly is reasonably used to reduce energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0028] Figure 1 The present invention is a three-dimensional oxygen concentrator capable of adjusting temperature and humidity Figure 1 ;

[0029] Figure 2 The present invention is a three-dimensional oxygen concentrator capable of adjusting temperature and humidity Figure 2 ;

[0030] Figure 3 The exploded view of the oxygen concentrator capable of adjusting temperature and humidity of the present invention;

[0031] Figure 4 A three-dimensional diagram of an upper humidifying plate of an oxygen concentrator capable of adjusting temperature and humidity of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the upper humidifying plate of the oxygen concentrator capable of adjusting temperature and humidity of the present invention;

[0033] Figure 6 The internal airflow trend diagram of the oxygen concentrator with adjustable temperature and humidity of the present invention;

[0034] Figure 7 The figure is a diagram of the airflow direction at different gears of the oxygen concentrator with adjustable temperature and humidity of the present invention;

[0035] Figure 8 It is a schematic diagram of the pipeline connection of the four gears of the oxygen concentrator with adjustable temperature and humidity of the present invention;

[0036] Fig. 9 It is a schematic diagram of the pipeline connection of the three gears of the oxygen concentrator with adjustable temperature and humidity of the present invention;

[0037] Fig.10 It is a schematic diagram of the pipeline connection of the second gear of the oxygen concentrator with adjustable temperature and humidity of the present invention;

[0038] Fig.11 This is a schematic diagram of the pipeline connection of the first gear of the oxygen concentrator with adjustable temperature and humidity of the present invention;

[0039] Fig.12 It is a schematic diagram of the connection of the upper and lower series pipes of the oxygen concentrator capable of adjusting temperature and humidity of the present invention;

[0040] Description of reference numerals:

[0041] 1. Chassis; 101. Oxygen tube interface; 102. Air outlet; 103. Air inlet; 2. Air intake filter; 3. Upper humidification plate; 301. Water storage box; 302. Support plate; 303. Air intake cover; 304. Sealing ring; 305. Sealing cover; 306. Air outlet pipe; 307. Air intake pipe; 4. Lower humidification plate; 5. Molecular sieve assembly; 6. Cooling fan; 7. Air compressor assembly; 8. Top load-bearing plate; 9. Bottom load-bearing plate. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0043] In the prior art, when the user is in a low temperature environment, the temperature of the inhaled oxygen is too low, which will cause the inhaled oxygen to be too cold, affecting the user experience; secondly, the humidity of the existing oxygen is constant after humidification, and the humidity cannot be adjusted according to the user's needs, which will reduce the user experience.

[0044] In view of the above problems, the present invention improves the structure of the existing oxygen concentrator. The present invention sets an upper humidifying plate 3 and a lower humidifying plate 4. The upper humidifying plate 3 is used as a normal temperature humidifying plate and can be used at normal temperature. The lower humidifying plate 4 is set below the air compressor assembly 7. When the heat dissipation fan 6 dissipates heat from the air compressor assembly 7, the exhausted hot air will first enter the lower accommodating chamber and then be discharged from the air outlet 102 at the bottom of the chassis 1. When the hot air passes through the lower accommodating chamber, it can heat the lower humidifying plate 4. When the oxygen passes through the lower humidifying plate 4, the temperature of the oxygen increases, thereby preventing the air inhaled by the user from being too cold.

[0045] In addition, an S-shaped channel is provided in the upper humidification plate 3 and the lower humidification plate 4, and an air inlet pipe 307 is provided at the corner of the S-shaped channel, and an air outlet pipe 306 is provided at the end of the S-shaped channel. By connecting the oxygen tube to different air inlet pipes 307, the length of oxygen flowing in the S-shaped channel can be adjusted, the degree of contact between oxygen and water can be controlled, and the oxygen humidity can be adjusted.

[0046] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0047] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0048] Embodiment 1 of the oxygen concentrator with adjustable temperature and humidity provided by the present invention:

[0049] like Figure 1-Figure 12 As shown, the chassis 1 includes an air inlet 103 on the top of the chassis 1, an air inlet filter 2 for filtering air is fixedly installed in the air inlet 103, and the air inlet filter 2 is provided with a plurality of spring sheets distributed along the circumference to ensure the stability of the air inlet filter 2 and facilitate the removal of the air inlet filter 2 for regular cleaning. The chassis 1 has an air outlet 102 at the bottom, and the air outlet 102 is used to discharge the heat generated by the air compressor assembly 7.

[0050] A top load-bearing plate 8 and a bottom load-bearing plate 9 are fixedly installed at the top and bottom of the chassis 1, respectively. Both the top load-bearing plate 8 and the bottom load-bearing plate 9 are provided with ventilation holes. In this embodiment, the ventilation holes and the air outlets 102 are grid holes. An upper accommodating cavity is formed between the top load-bearing plate 8 and the top plate of the chassis 1, and a lower accommodating cavity is formed between the bottom load-bearing plate 9 and the bottom plate of the chassis 1.

[0051] The space between the top bearing plate 8 and the bottom bearing plate 9 is used to install the air compressor assembly 7 and the molecular sieve assembly 5.

[0052] The air compressor assembly 7 is used to pressurize the air; the molecular sieve assembly 5 is connected to the air compressor assembly 7 through a pipeline, and the molecular sieve assembly 5 is used to separate oxygen from the air; in this embodiment, an oxygen pipe interface 101 is provided on the side wall of the chassis 1, and the oxygen pipe interface 101 is connected to the oxygen outlet of the molecular sieve assembly 5 to facilitate switching of pipelines.

[0053] The air compressor assembly 7 and the molecular sieve assembly 5 are both prior arts, and the present invention does not improve the air compressor assembly 7 and the molecular sieve assembly 5, so the structures of the air compressor assembly 7 and the molecular sieve assembly 5 are not repeated here.

[0054] like Figure 4 , Figure 5 and Figure 7 As shown, the upper humidifying plate 3 has clean water stored inside the upper humidifying plate 3 for humidifying oxygen. The upper humidifying plate 3 is installed in the upper accommodating chamber. A gap is reserved between the upper humidifying plate 3 and the side wall of the upper accommodating chamber for air to pass through. The upper humidifying plate 3 includes a water storage box 301, and a humidity regulating mechanism for regulating the humidity of oxygen is provided in the water storage box 301.

[0055] In this embodiment, support plates 302 are fixedly installed at both ends of the water storage box 301. The area of ​​the support plate 302 is larger than the area of ​​the front or rear end surface of the water storage box 301, so that a gap is formed between the upper humidification plate 3 and the upper accommodating cavity for air to pass through.

[0056] like Figure 7 As shown, the humidity regulating mechanism includes a plurality of partitions arranged in the water storage box 301 at intervals along the left-right direction, through holes are reserved between the partitions and the inner wall of the water storage box 301, and the through holes of adjacent partitions are staggered front and back, so that an S-shaped channel is formed inside the upper humidifying disk 3, and the S-shaped channel is arranged in the water storage box 301. An air outlet pipe 306 for discharging oxygen and a plurality of air inlet pipes 307 for discharging oxygen are installed on the front side of the water storage box 301. The air outlet pipe 306 is connected to the end of the S-shaped channel, and the air outlet pipe 306 is connected to the external nasal oxygen tube. The air inlet pipes 307 are respectively arranged at the corners of the S-shaped channel and are connected to the S-shaped channel. The air inlet pipe 307 is also connected to a sealing structure. When the oxygen outlet pipe of the molecular sieve assembly 5 is connected to one of the air inlet pipes 307, the other air inlet pipes 307 are sealed.

[0057] like Figure 4 As shown, both the air outlet pipe 306 and the air inlet pipe 307 are elbow pipes, and the height of the air outlet pipe 306 is higher than that of the upper humidifying plate 3 to prevent clean water from being discharged from the air outlet pipe 306 .

[0058] In this embodiment, the sealing structure includes an air inlet cover 303 and a plurality of sealing covers 305, which ensure that after oxygen enters the water storage box 301 from the air inlet cover 303, it can only be discharged from the air outlet pipe 306. The air inlet cover 303 and the sealing cover 305 are both connected to the air inlet pipe 307 through threads, and the air inlet cover 303 and the sealing cover 305 are both provided with a sealing ring 304 that cooperates with the air inlet pipe 307 to ensure sealing.

[0059] In this embodiment, the air outlet tube 306 is also connected to the air inlet cap 303 to facilitate the connection of an external nasal oxygen tube.

[0060] like Figure 3 and Figure 6 As shown, a heat dissipation fan 6 is fixedly installed above the air compressor assembly 7, and the air outlet 102 of the heat dissipation fan 6 faces the air compressor assembly 7 to take away the heat generated by the air compressor assembly 7;

[0061] The lower humidifying plate 4 is installed in the lower accommodating chamber, and the structure of the lower humidifying plate 4 is the same as that of the upper humidifying plate 3; the heat dissipation fan 6 flows the heat generated by the air compressor assembly 7 to the lower accommodating chamber, and discharges it from the chassis 1 from the air outlet 102. The heat generated by the air compressor assembly 7 heats the water in the lower humidifying plate 4 when passing through the lower accommodating chamber.

[0062] In this way, the manufacturing cost can be reduced, and the heat generated by the air compressor assembly 7 can be reasonably utilized to reduce energy waste. The heat generated by the air compressor assembly 7 is relatively limited, which will not cause the water temperature in the lower humidifying tray 4 to be too high, and can prevent the water temperature in the lower humidifying tray 4 from being too high.

[0063] like Figure 7-Figure 12 As shown, the present invention has multiple adjustable gears. The closer the air inlet pipe 307 connected to the oxygen tube is to the air outlet pipe 306, the shorter the path of the oxygen is, and the lower the oxygen humidity is. In addition, the present invention also has upper and lower series normal temperature humidification and upper and lower series high temperature humidification modes, in which both the upper humidification disk 3 and the lower humidification disk 4 are used. In the normal temperature gear, the upper humidification disk 3 is used to connect the nasal oxygen tube, and the air inlet pipe 307 of the lower humidification disk 4 is connected to the oxygen tube. The upper and lower humidification disks 4 are connected in series through silicone tubes; the same is true for the upper and lower series high temperature humidification mode.

[0064] Embodiment 2 of the oxygen concentrator with adjustable temperature and humidity provided by the present invention:

[0065] The main difference between it and Example 1 is:

[0066] In Example 1, the humidity regulating mechanism includes a plurality of partitions arranged in the water storage box and spaced apart along the left-right direction, through holes are reserved between the partitions and the inner side walls of the water storage box, and the through holes of adjacent partitions are staggered front to back, so that an S-shaped channel is formed inside the upper humidification disk, and the S-shaped channel is arranged in the water storage box. An outlet pipe for discharging oxygen and a plurality of inlet pipes for discharging oxygen are installed on the front side of the water storage box. The outlet pipe is connected to the end of the S-shaped channel, and the outlet pipe is connected to an external nasal oxygen tube. The inlet pipes are respectively arranged at the corners of the S-shaped channel and are connected to the S-shaped channel. The inlet pipe is also connected to a sealing structure. When the oxygen outlet pipe of the molecular sieve assembly is connected to one of the inlet pipes, the other inlet pipes are sealed.

[0067] Embodiment 1 controls the length of the path that oxygen passes through in the S-shaped channel to control the degree of contact between oxygen and water, thereby adjusting the humidity of oxygen.

[0068] In this embodiment, a plurality of air disks are arranged in the water storage box, and a plurality of air holes are evenly distributed on the air disks. The diameters of the air holes on different air disks are different. Each air disk has a corresponding air inlet pipe. By switching different air disks, the humidity of oxygen can be controlled.

[0069] The principle of this embodiment is: when oxygen passes through the gas disk, bubbles will be generated. The larger the pore diameter, the larger the bubble, the relatively inadequate contact between oxygen and water, and the relatively low oxygen humidity; the smaller the pore diameter, the smaller the bubble, the larger the contact area between oxygen and water, the more sufficient contact between oxygen and water, and the relatively high oxygen humidity.

[0070] Embodiment 3 of the oxygen concentrator with adjustable temperature and humidity provided by the present invention:

[0071] The main difference between it and Example 1 is:

[0072] In Example 1, the humidity adjustment mechanism includes a plurality of partitions arranged in the water storage box at intervals along the left and right directions, through holes are reserved between the partitions and the inner wall of the water storage box, and the through holes of adjacent partitions are staggered front and back to form an S-shaped channel inside the upper humidifying plate.

[0073] In this embodiment, an S-shaped pipe is directly arranged in the water storage box.

[0074] Embodiment 4 of the oxygen concentrator with adjustable temperature and humidity provided by the present invention:

[0075] The main difference between it and Example 1 is:

[0076] In Example 1, support plates are fixedly installed at both the front and rear ends of the water storage box, and the area of ​​the support plates is larger than the area of ​​the front or rear end surface of the water storage box, so that a gap for air to pass through is formed between the water storage box and the upper accommodating cavity.

[0077] In this embodiment, a groove is directly opened on the side wall of the water storage box to form a gap for air to pass through.

[0078] Although this specification has shown and described a plurality of embodiments of the present invention, it is obvious to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art will think of many changes, modifications and alternatives without departing from the thought and spirit of the present invention. It should be understood that in the process of practicing the present invention, various alternatives to the embodiments of the present invention described herein may be adopted. The attached claims are intended to define the scope of protection of the present invention, and therefore cover the modular composition, equivalent or alternatives within the scope of protection of these claims.

Claims

1. An oxygen concentrator capable of adjusting temperature and humidity, comprising: A chassis (1), wherein an air inlet (103) is provided at the top of the chassis (1), and an air inlet filter (2) for filtering air is fixedly installed in the air inlet (103); and an air outlet (102) is provided at the bottom of the chassis (1); An air compressor assembly (7) installed inside the chassis (1), the air compressor assembly (7) is used to pressurize the air; A molecular sieve assembly (5), the molecular sieve assembly (5) is connected to an air compressor assembly (7) via a pipeline, and the molecular sieve assembly (5) is used to separate oxygen from the air; The invention is characterized in that: it also comprises a top load-bearing plate (8) and a bottom load-bearing plate (9), and both the top load-bearing plate (8) and the bottom load-bearing plate (9) are provided with ventilation holes; The top load-bearing plate (8) is fixedly mounted above the inside of the chassis (1), and an upper accommodating cavity is formed between the top load-bearing plate (8) and the top plate of the chassis (1); the bottom load-bearing plate (9) is fixedly mounted below the inside of the chassis (1), and a lower accommodating cavity is formed between the bottom load-bearing plate (9) and the bottom plate of the chassis (1); An upper humidifying plate (3), wherein clean water is stored inside the upper humidifying plate (3) for humidifying oxygen, and the upper humidifying plate (3) is installed in the upper accommodating chamber, and a gap is reserved between the upper humidifying plate (3) and the side wall of the upper accommodating chamber for air to pass through; the upper humidifying plate (3) comprises a water storage box (301), and a humidity regulating mechanism for regulating the humidity of oxygen is arranged inside the water storage box (301); A heat dissipation fan (6), the heat dissipation fan (6) is fixedly installed above the air compressor assembly (7), and the air outlet (102) of the heat dissipation fan (6) is oriented toward the air compressor assembly (7) to remove heat generated by the air compressor assembly (7); A lower humidifying plate (4) is installed in the lower accommodating chamber, and the structure of the lower humidifying plate (4) is the same as that of the upper humidifying plate (3); the heat dissipation fan (6) flows the heat generated by the air compressor assembly (7) to the lower accommodating chamber and discharges the heat from the chassis (1) through the air outlet (102); the heat generated by the air compressor assembly (7) heats the water in the lower humidifying plate (4) when passing through the lower accommodating chamber.

2. The temperature and humidity adjustable oxygen concentrator according to claim 1, characterized in that: The humidity regulating mechanism comprises an S-shaped channel arranged in a water storage box (301); an air outlet pipe (306) for discharging oxygen and a plurality of air inlet pipes (307) for discharging oxygen are installed on the side of the water storage box (301); the air outlet pipe (306) is connected to the end of the S-shaped channel; the air inlet pipes (307) are respectively arranged at the corners of the S-shaped channel and are connected to the S-shaped channel; the air inlet pipes (307) are also connected to a sealing structure; when the oxygen outlet pipe of the molecular sieve assembly (5) is connected to one of the air inlet pipes (307), the other air inlet pipes (307) are sealed.

3. The temperature and humidity adjustable oxygen concentrator according to claim 2, characterized in that: The water storage box (301) is provided with a plurality of partitions spaced apart in the left-right direction, through holes are reserved between the partitions and the inner side walls of the water storage box (301), and the through holes of adjacent partitions are staggered front to back, so that an S-shaped channel is formed inside the upper water storage box (301).

4. The temperature and humidity adjustable oxygen concentrator according to claim 3, characterized in that: The height of the air outlet pipe (306) is higher than the height of the upper humidifying plate (3) to prevent clean water from being discharged from the air outlet pipe (306).

5. The temperature and humidity adjustable oxygen concentrator according to claim 4, characterized in that: Support plates (302) are fixedly mounted at both the front and rear ends of the water storage box (301), and the area of ​​the support plate (302) is larger than the area of ​​the front end or rear end surface of the water storage box (301), so that a gap is left between the water storage box (301) and the upper accommodating cavity for air circulation.

6. The temperature and humidity adjustable oxygen concentrator according to any one of claims 2 to 5, characterized in that: The sealing structure comprises an air inlet cover (303) and a plurality of sealing covers (305).

7. The temperature and humidity adjustable oxygen concentrator according to claim 6, characterized in that: The air intake cover (303) and the sealing cover (305) are both provided with a sealing ring (304) that matches the air intake pipe (307).

8. The temperature and humidity adjustable oxygen concentrator according to claim 7, characterized in that: The air intake cover (303) and the sealing cover (305) are both connected to the air intake pipe (307) via threads.

9. The temperature and humidity adjustable oxygen concentrator according to claim 1, characterized in that: The air outlet pipe (306) and the air inlet pipe (307) are both elbow pipes.

10. The temperature and humidity adjustable oxygen concentrator according to claim 1, characterized in that: The air intake filter (2) is provided with a plurality of spring sheets distributed along the circumferential direction, so as to facilitate the disassembly of the air intake filter (2).

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