Oxygen generator

Abstract

The invention belongs to the technical field of medical equipment, and discloses an oxygen generator which comprises an adsorption cylinder, a compressor, a humidifying cup and a condensation water collection assembly, the adsorption cylinder is filled with an adsorbent for adsorbing nitrogen, the compressor is used for providing pressurized air for the adsorption cylinder, the humidifying cup is used for humidifying oxygen from the adsorption cylinder, and the condensation water collection assembly is used for collecting water from the adsorption cylinder. The humidifying cup is provided with a liquid inlet, the condensation and water collection assembly is provided with a liquid outlet, an air inlet communicated with the compressor and an air outlet communicated with the adsorption barrel, the condensation and water collection assembly is used for condensing water vapor in pressurized air generated by the compressor into liquid, and the liquid is discharged through the liquid outlet and enters the humidifying cup through the liquid inlet so as to supplement water to the humidifying cup; according to the technical scheme, the frequency that water needs to be supplemented to the humidifying cup is reduced, the use experience of a user is greatly improved, the humidity of pressurized air entering the adsorption barrel is greatly reduced, the phenomenon that an adsorbent is agglomerated due to humidification is improved, the service life of the adsorption barrel is prolonged, and the use cost of the user is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of medical equipment, and specifically relates to an oxygen concentrator. Background Art

[0002] Oxygen concentrator is one of the commonly used medical equipment in medical institutions. It can continuously supply oxygen. It uses gas separation technology to separate air into oxygen and nitrogen. The oxygen concentrator mainly includes compressor, sieve barrel, humidification cup and other components. The compressor is used to compress the air and send the compressed air into the sieve barrel so that the adsorbent inside the sieve barrel can adsorb the nitrogen to separate the oxygen from the nitrogen. After separation, the oxygen enters the humidification cup for humidification before being inhaled by the user. However, since there is moisture in the air, after the compressed air enters the sieve barrel, the moisture in the air will cause the adsorbent to humidify and agglomerate, which greatly affects the service life of the sieve barrel. In addition, since the oxygen will take away the water in the humidification cup after being humidified by the humidification cup, the user needs to frequently add water to the humidification cup, which affects the user experience. Summary of the invention

[0003] The present application provides an oxygen generator to improve the phenomenon of adsorbent wetting and agglomeration and extend the service life of a sieve barrel.

[0004] The technical solution adopted in this application is:

[0005] An oxygen concentrator, comprising:

[0006] An adsorption cylinder filled with an adsorbent for adsorbing nitrogen;

[0007] A compressor, which is used to provide pressurized air to the adsorption cylinder;

[0008] A humidification cup, which is used to humidify the oxygen from the adsorption cylinder, and the humidification cup has a liquid inlet;

[0009] A condensation water collection component has a drain port, an air inlet connected to the compressor, and an exhaust port connected to the adsorption cylinder. The condensation water collection component is used to condense water vapor in the pressurized air generated by the compressor into liquid. The liquid is discharged through the drain port and enters the humidification cup through the liquid inlet.

[0010] By adopting the above technical scheme, when the oxygen generator in the present application is used, the compressor compresses the air and transports the compressed air to the condensation water collection component through the air inlet of the condensation water collection component, and the pressurized air entering the condensation water collection component enters the adsorption cylinder through the exhaust port, so that the adsorbent in the adsorption cylinder adsorbs nitrogen to achieve separation of oxygen and nitrogen, and the separated oxygen enters the humidification cup and is humidified by the water in the humidification cup for inhalation by the user; and, after the pressurized air enters the condensation water collection component, the water vapor in the pressurized air condenses into liquid in the condensation water collection component, thereby greatly reducing the humidity of the pressurized air entering the adsorption cylinder, so as to improve the phenomenon of agglomeration of the adsorbent due to humidification, thereby greatly extending the service life of the adsorption cylinder, so as to reduce the user's use cost; in addition, the liquid condensed in the condensation water collection component is discharged through the drain port of the condensation water collection component and enters the humidification cup through the liquid inlet to replenish water for the humidification cup, thereby greatly reducing the frequency of replenishing water for the humidification cup, thereby greatly improving the user's use experience.

[0011] Optionally, the condensation water collection assembly includes a condensation chamber and a cooling structure arranged in the condensation chamber, and the cooling structure is used to cool the condensation chamber.

[0012] By adopting the above technical scheme, the temperature of the air will increase after being pressurized by the compressor, and the cooling structure can cool the condensation chamber, so that after the pressurized air with increased temperature enters the condensation chamber, the pressurized air contacts the condensation chamber with lower temperature, and the temperature of the pressurized air drops below its dew point temperature, so that the water vapor condenses into liquid to achieve dehydration of the pressurized air, thereby greatly improving the dehydration effect of the pressurized air, further improving the phenomenon of agglomeration of the adsorbent due to humidification, and further extending the service life of the adsorption cylinder.

[0013] Optionally, the cooling structure includes a semiconductor refrigeration plate, and the cold end of the semiconductor refrigeration plate is arranged close to the condensation chamber.

[0014] By adopting the above technical scheme, since the semiconductor refrigeration sheet is used to cool the condensation chamber, the cooling efficiency of the condensation chamber is improved, and the energy consumption when cooling the condensation chamber is reduced, so as to reduce the energy consumption of the oxygen concentrator. At the same time, the service life of the cooling structure is extended to reduce the failure rate of the oxygen concentrator. In addition, due to the small size and light weight of the semiconductor refrigeration sheet, it is also convenient to miniaturize and lightweight the oxygen concentrator.

[0015] Optionally, the cooling structure further includes heat dissipation fins and a cooling fan, the heat dissipation fins are arranged close to the hot end of the semiconductor refrigeration plate, and the cooling fan is located on a side of the heat dissipation fins away from the semiconductor refrigeration plate.

[0016] By adopting the above technical scheme, since the heat sink fins are arranged close to the hot end of the semiconductor refrigeration plate, the heat at the hot end of the semiconductor refrigeration plate can be transferred to the heat sink fins to improve the heat dissipation efficiency of the semiconductor refrigeration plate, thereby improving the cooling effect of the semiconductor refrigeration plate on the condensation chamber, and further improving the dehydration effect of the pressurized air; and since the cooling fan is located on the side of the heat sink fins away from the semiconductor refrigeration plate, the cooling fan can dissipate heat from the heat sink fins to improve the heat dissipation efficiency of the heat sink fins, thereby improving the heat dissipation efficiency of the semiconductor refrigeration plate, and further improving the dehydration effect of the pressurized air, thereby further extending the service life of the adsorption cylinder.

[0017] Optionally, the condensation water collection assembly includes a condensation chamber and a spiral condensation tube arranged in the condensation chamber, the spiral condensation tube has a first end and a second end, the first end extends out of the condensation chamber to form the air inlet, and the second end is located inside the condensation chamber and forms an air outlet.

[0018] By adopting the above-mentioned technical scheme, the pressurized air through the compressor pressurization port enters the spiral condenser through the air inlet, and then the pressurized air contacts the tube wall of the spiral condenser, so that the water vapor in the pressurized air condenses into liquid and is discharged from the air outlet, and the dehydrated pressurized air is also discharged from the air outlet, so that the pressurized air discharged from the air outlet contacts the cavity wall of the condensation chamber to further dehydrate the pressurized air, thereby increasing the flow path of the pressurized air in the condensation chamber, so as to greatly improve the dehydration effect of the pressurized air, and further extend the service life of the adsorption cylinder.

[0019] Optionally, the condensation chamber is provided with a guide plate located below the spiral condenser tube, the guide plate having a central area and an edge area surrounding the central area, the guide plate is inclined downward from the central area to the edge area, the guide plate divides the condensation chamber into a first chamber and a second chamber located below the first chamber in the vertical direction, and the peripheral sides of the first chamber and the second chamber are connected to each other.

[0020] By adopting the above-mentioned technical scheme, the liquid flowing out of the condensation tube drips onto the guide plate, and then the liquid quickly flows into the second chamber along the inclined direction of the guide plate, so that the liquid is collected in the second chamber, so that the collected liquid is isolated from the pressurized air to a certain extent, so as to avoid the pressurized air from taking away the liquid when flowing out of the condensation chamber, thereby ensuring the dehydration effect of the pressurized air; and the guide plate is tilted downward from the central area to the edge area, which can speed up the efficiency of the liquid flowing along the guide plate to the second chamber, so as to further avoid the pressurized air from taking away the liquid when discharging from the condensation chamber, thereby further ensuring the dehydration effect of the pressurized air.

[0021] Optionally, the guide plate is provided with guide ribs extending from the central area to the edge area, and the guide ribs are arranged at intervals along the circumference of the central area.

[0022] By adopting the above technical solution, since the guide plate is provided with guide ribs extending from the central area to the edge area, when the liquid flows into the second chamber via the inclined direction of the guide plate, the guide ribs can guide the liquid to further accelerate the speed of the liquid flowing into the second chamber, so as to further avoid the situation where the pressurized air is carried away by the liquid when it is discharged from the condensation chamber, thereby further ensuring the dehydration effect of the pressurized air; at the same time, the guide ribs can also increase the structural strength of the guide plate to increase the service life of the guide plate.

[0023] Optionally, the central area is a plane, and the second end is arranged opposite to the central area.

[0024] By adopting the above technical solution, since the second end is arranged relative to the central area, the pressurized air discharged through the air outlet directly collides with the central area, and since the central area is a plane, the pressurized air is blocked by the central area and turns back and flows upward, thereby greatly alleviating the outward diffusion of the pressurized air in the central area, and further greatly improving the contact between the pressurized air and the liquid, so as to further ensure the dehydration effect of the pressurized air.

[0025] Optionally, the condensation chamber has an inclined plate located below the guide plate, and the inclined plate extends downward from one end to the drain port.

[0026] By adopting the above technical solution, since the inclined plate extends downward from one end to the drain port, the liquid flowing into the second cavity can all flow to the drain port under the action of the inclined plate, so as to avoid the accumulation of liquid in the second cavity, thereby improving the efficiency of replenishing the liquid in the humidification cup, thereby reducing the frequency of replenishing the liquid in the humidification cup, so as to further improve the user experience; and greatly avoid the occurrence of odor caused by the deterioration of liquid due to the accumulation of liquid in the second cavity, so as to greatly improve the cleanliness of the oxygen concentrator and the user experience.

[0027] Optionally, an electromagnetic pump is provided between the condensation water collection assembly and the humidification cup, and the electromagnetic pump is used to transport the liquid in the condensation water collection assembly to the humidification cup.

[0028] By adopting the above technical solution, since an electromagnetic pump is provided between the condensate water collecting assembly and the humidification cup, the liquid in the condensate water collecting assembly can be pumped into the humidification cup under the action of the electromagnetic pump to provide power for the flow of the liquid, so that the relative position of the humidification cup and the condensate water collecting assembly is not restricted, so as to achieve the effect of facilitating the reasonable arrangement of the components of the oxygen concentrator and facilitating the compact design of the oxygen concentrator.

[0029] Optionally, the humidification cup includes a cup body, a cup cover, an air duct and a purification tray, the cup body has a humidification chamber for holding liquid, the cup cover can be covered on the cup body, the cup cover has an oxygen inlet and an oxygen outlet, and the liquid inlet is arranged on the cup cover, the air duct is connected to the oxygen inlet and extends to the lower part of the humidification chamber, the purification tray is arranged on the cup cover, and the liquid entering the humidification cup through the liquid inlet enters the humidification chamber after being purified by the purification tray.

[0030] By adopting the above technical solution, the liquid entering the humidification cup through the liquid inlet is purified by the purification disk and then enters the humidification chamber, thereby achieving purification of the liquid, thereby ensuring the humidification quality of oxygen and improving the user experience.

[0031] Optionally, the purification disk includes an upper shell and a lower shell connected to each other, a receiving chamber is formed between the upper shell and the lower shell, a purification component is provided in the receiving chamber, the upper shell is provided with a liquid guide port, and the lower shell is provided with a liquid outlet, the liquid enters the receiving chamber through the liquid guide port and enters the humidification chamber through the liquid outlet.

[0032] By adopting the above technical solution, when the liquid generated by the condensation water collection component enters the humidification cup, the liquid enters the accommodating chamber through the liquid inlet and the liquid guide port, and then the purification component located in the accommodating chamber purifies the liquid. The purified liquid enters the humidification chamber through the liquid outlet to achieve purification of the liquid.

[0033] Optionally, a flow equalizing plate is provided in the accommodating cavity, the purification component is provided between the flow equalizing plate and the lower shell, the flow equalizing plate is provided with a plurality of flow equalizing ribs, a flow channel is formed between two adjacent flow equalizing ribs, and the flow channel is provided with a plurality of leakage holes.

[0034] By adopting the above technical scheme, the liquid entering the purification disk through the liquid guide port first falls onto the flow equalizing plate, and flows along the flow channel formed between two adjacent flow equalizing ribs, and in the process of the liquid flowing along the flow channel, part of the liquid flows to the bottom of the flow equalizing plate through the leakage hole and contacts the purification component, so that the purification component purifies the liquid; since the liquid entering the purification disk first flows along the flow channel and part of the liquid flows to the bottom of the flow equalizing plate through the leakage hole during the flow, the liquid can then contact the entire purification component, so as to avoid the situation where the liquid can only flow to a certain position of the purification component and cause a large loss in a certain position of the purification component, thereby making the loss of the purification component more uniform, so as to extend the service life of the purification component, while ensuring the overall purification effect of the liquid.

[0035] Optionally, the cup cover is provided with at least two snap-fitting parts, and the top of the purification disc is provided with a matching part that can be snap-fitted with the snap-fitting parts.

[0036] By adopting the above technical solution, through the setting of the clamping part and the matching part, the purification plate can be separated from the cup cover, so that the purification plate can be replaced to ensure the humidification effect of the humidification cup on the liquid. At the same time, compared with the solution of replacing the entire humidification cup, the user's usage cost is reduced; and when disassembling and assembling the purification plate, it is only necessary to release the clamping fit between the clamping part and the matching part, so as to reduce the difficulty of disassembling and assembling the purification plate and improve the efficiency of disassembling and assembling the purification plate.

[0037] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0038] 1. The oxygen generator in the present application includes an adsorption cylinder, a compressor, a humidification cup and a condensation water collection assembly. The adsorption cylinder is filled with an adsorbent for adsorbing nitrogen. The compressor is used to provide pressurized air to the adsorption cylinder. The humidification cup is used to humidify the oxygen from the adsorption cylinder, and the humidification cup has a liquid inlet. The condensation water collection assembly has a liquid discharge port, an air inlet connected to the compressor, and an exhaust port connected to the adsorption cylinder. The condensation water collection assembly is used to condense the water vapor in the pressurized air generated by the compressor into liquid. The liquid is discharged through the liquid discharge port and enters the humidification cup through the liquid inlet to replenish water for the humidification cup, thereby greatly reducing the frequency of replenishing water for the humidification cup, thereby greatly improving the user experience; and, after the pressurized air enters the condensation water collection assembly, the water vapor in the pressurized air condenses into liquid in the condensation water collection assembly, thereby greatly reducing the humidity of the pressurized air entering the adsorption cylinder, so as to improve the phenomenon of agglomeration of the adsorbent due to humidification, thereby greatly extending the service life of the adsorption cylinder, so as to reduce the user's use cost.

[0039] 2. The condensation and water collection assembly in the present application includes a condensation chamber and a cooling structure arranged in the condensation chamber. The cooling structure is used to cool the condensation chamber, so that after the pressurized air with increased temperature enters the condensation chamber, the pressurized air contacts the condensation chamber with lower temperature, and the temperature of the pressurized air drops below its dew point temperature, so that the water vapor condenses into liquid to achieve dehydration of the pressurized air, thereby greatly improving the dehydration effect of the pressurized air, further improving the phenomenon of agglomeration of the adsorbent due to humidification, and further extending the service life of the adsorption cylinder.

[0040] 3. The cooling structure in the present application includes a semiconductor refrigeration plate. The cold end of the semiconductor refrigeration plate is arranged close to the condensation chamber, thereby improving the cooling efficiency of the condensation chamber and reducing the energy consumption when cooling the condensation chamber, so as to reduce the energy consumption of the oxygen concentrator. At the same time, the service life of the cooling structure is extended to reduce the failure rate of the oxygen concentrator. In addition, due to the small size and light weight of the semiconductor refrigeration plate, it is also convenient to miniaturize and lightweight the oxygen concentrator. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0042] Figure 1 This is a partial structural schematic diagram of the oxygen concentrator described in one embodiment of the present application;

[0043] Figure 2 This is a schematic structural diagram of the condensation water collection assembly described in one embodiment of the present application;

[0044] Figure 3 A cross-sectional view of the condensate collection assembly according to one embodiment of the present application;

[0045] Figure 4 A cross-sectional view from another perspective of the condensation water collection assembly in one embodiment of the present application;

[0046] Figure 5 This is a schematic structural diagram of the guide plate described in one embodiment of the present application;

[0047] Figure 6 This is a schematic diagram of the structure of the humidification cup according to one embodiment of the present application;

[0048] Figure 7 A cross-sectional view of the humidification cup according to one embodiment of the present application;

[0049] Figure 8 A cross-sectional view from another perspective of the humidification cup in one embodiment of the present application;

[0050] Fig. 9 This is a schematic diagram of the explosion structure of the purification disk in one embodiment of the present application;

[0051] Fig.10 This is a schematic diagram of the structure of the current equalizing plate described in one embodiment of the present application.

[0052] 1. Adsorption cylinder; 2. Compressor; 3. Humidification cup; 31. Cup body; 32. Cup cover; 321. Oxygen inlet; 322. Oxygen outlet; 323. Liquid inlet; 324. Clamping part; 325. Pressure relief port; 33. Air guide tube; 34. Purification plate; 341. Upper shell; 342. Lower shell; 343. Purification part; 344. Flow equalizing plate; 345. Liquid guide port; 346. Limiting rib; 347. Matching part; 348. Liquid outlet; 3 49. Flow equalizing rib; 350. Leakage hole; 351. Notch; 352. Liquid guide tube; 4. Condensation water collection assembly; 41. Condensation chamber; 411. Guide plate; 412. Guide rib; 413. Inclined plate; 414. Connecting protrusion; 415. Drain port; 42. Cooling structure; 421. Semiconductor refrigeration sheet; 422. Heat dissipation fin; 423. Cooling fan; 43. Spiral condenser; 5. Casing; 6. Electromagnetic pump; 7. Gas distribution valve. DETAILED DESCRIPTION

[0053] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0054] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0055] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 a limitation on the present application.

[0056] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0058] Reference Figures 1 to 10 , discloses an oxygen concentrator, including an adsorption cylinder 1, a compressor 2, a humidification cup 3 and a condensation water collection component 4, wherein the adsorption cylinder 1 is filled with an adsorbent for adsorbing nitrogen; the compressor 2 is used to provide pressurized air to the adsorption cylinder 1; the humidification cup 3 is used to humidify the oxygen from the adsorption cylinder 1, and the humidification cup 3 has a liquid inlet 323; the condensation water collection component 4 has a drain port 415, an air inlet connected to the compressor 2 and an exhaust port connected to the adsorption cylinder 1, and the condensation water collection component 4 is used to condense water vapor in the pressurized air generated by the compressor 2 into liquid, and the liquid is discharged through the drain port 415 and enters the humidification cup 3 through the liquid inlet 323.

[0059] When using the oxygen concentrator in the present application, the compressor 2 compresses the air and delivers the compressed air to the condensation water collection component 4 through the air inlet of the condensation water collection component 4, and the pressurized air entering the condensation water collection component 4 enters the adsorption cylinder 1 through the exhaust port, so that the adsorbent in the adsorption cylinder 1 adsorbs the nitrogen to achieve the separation of oxygen and nitrogen, and the separated oxygen enters the humidification cup 3 and is humidified by the water in the humidification cup 3 for inhalation by the user; and after the pressurized air enters the condensation water collection component 4, the water vapor in the pressurized air is The liquid condenses into liquid in the condensation water collection component 4, which greatly reduces the humidity of the pressurized air entering the adsorption cylinder 1, so as to improve the phenomenon of adsorbent agglomeration due to humidification, thereby greatly extending the service life of the adsorption cylinder 1 and reducing the user's usage cost; in addition, the liquid condensed in the condensation water collection component 4 is discharged through the drain port 415 of the condensation water collection component 4 and enters the humidification cup 3 through the liquid inlet 323 to replenish water for the humidification cup 3, thereby greatly reducing the frequency of replenishing water for the humidification cup 3, thereby greatly improving the user's usage experience.

[0060] The present application does not specifically limit the structure of the condensate collection assembly 4. Preferably, refer to Figure 2 and Figure 3 The condensation water collection assembly 4 includes a condensation chamber 41 and a cooling structure 42 disposed in the condensation chamber 41 . The cooling structure 42 is used to cool the condensation chamber 41 .

[0061] Specifically, the temperature of the air will increase after being pressurized by the compressor 2, and the cooling structure 42 can cool the condensation chamber 41, so that after the pressurized air with increased temperature enters the condensation chamber 41, the pressurized air contacts the condensation chamber 41 with a lower temperature, so that the temperature of the pressurized air drops below its dew point temperature, thereby condensing water vapor into liquid to achieve dehydration of the pressurized air, thereby greatly improving the dehydration effect of the pressurized air, further improving the phenomenon of agglomeration of the adsorbent due to humidification, and further extending the service life of the adsorption cylinder 1.

[0062] The present application does not specifically limit the formation method of the condensation chamber 41. Preferably, refer to Figure 1 The oxygen concentrator further includes a casing 5, in which an independent box body is disposed, a condensation chamber 41 is formed inside the box body, and the adsorption cylinder 1, the compressor 2 and the condensation water collection assembly 4 are all disposed inside the casing 5. In other embodiments, the condensation chamber 41 can also be formed by other walls inside the casing 5 and the walls of the casing 5.

[0063] The present application does not specifically limit the structure of the cooling structure 42. Preferably, refer to Figure 2 and Figure 3 The cooling structure 42 includes a semiconductor refrigeration sheet 421 , and a cold end of the semiconductor refrigeration sheet 421 is arranged close to the condensation chamber 41 .

[0064] It can be understood that the semiconductor refrigeration sheet 421 is arranged outside the condensation chamber 41, and the cold end of the semiconductor refrigeration sheet 421 is attached to the outer wall of the condensation chamber 41, thereby improving the cooling efficiency of the condensation chamber 41 and reducing the energy consumption when cooling the condensation chamber 41, so as to reduce the energy consumption of the oxygen generator, and at the same time extend the service life of the cooling structure 42 to reduce the failure rate of the oxygen generator. In addition, due to the small size and light weight of the semiconductor refrigeration sheet 421, it is also convenient to miniaturize and lightweight the oxygen generator.

[0065] Further, see Figure 2 and Figure 3 The cooling structure 42 further includes heat dissipation fins 422 and a cooling fan 423 . The heat dissipation fins 422 are arranged close to the hot end of the semiconductor cooling sheet 421 , and the cooling fan 423 is located on a side of the heat dissipation fins 422 away from the semiconductor cooling sheet 421 .

[0066] It can be understood that the heat sink 422 is arranged in contact with the hot end of the semiconductor refrigeration plate 421, so that the heat at the hot end of the semiconductor refrigeration plate 421 can be transferred to the heat sink 422, so as to improve the heat dissipation efficiency of the semiconductor refrigeration plate 421, thereby improving the cooling effect of the semiconductor refrigeration plate 421 on the condensation chamber 41, and further improving the dehydration effect on the pressurized air; and because the cooling fan 423 is located on the side of the heat sink 422 away from the semiconductor refrigeration plate 421, the cooling fan 423 can dissipate heat from the heat sink 422, so as to improve the heat dissipation efficiency of the heat sink 422, thereby improving the heat dissipation efficiency of the semiconductor refrigeration plate 421, and further improving the dehydration effect on the pressurized air, so as to further extend the service life of the adsorption cylinder 1.

[0067] Better, refer to Figure 2 and Figure 3 The open end of the heat sink 422 is arranged away from the semiconductor refrigeration sheet 421, that is, the side of the heat sink 422 having the heat dissipation channel is arranged away from the semiconductor refrigeration sheet 421. On the one hand, the contact area between the heat sink 422 and the semiconductor refrigeration sheet 421 is guaranteed to improve the heat dissipation efficiency of the semiconductor refrigeration sheet 421. On the other hand, the airflow generated by the cooling fan 423 when working can flow through the heat dissipation channel of the heat sink 422 to improve the heat dissipation efficiency of the heat sink 422, thereby ensuring the cooling efficiency of the semiconductor refrigeration sheet 421 to the condensation chamber 41.

[0068] Preferably, both the cold end and the hot end of the semiconductor refrigeration plate 421 are coated with a thermal grease layer, so that the semiconductor refrigeration plate 421 contacts the outer wall of the condensation chamber 41 and the heat dissipation fins 422 through the thermal grease layer, so as to further improve the heat dissipation efficiency of the semiconductor refrigeration plate 421, thereby further ensuring the cooling efficiency of the condensation chamber 41.

[0069] In other embodiments, the cooling structure 42 may also include only a heat dissipation fan, so as to utilize the heat dissipation fan to cool the condensation chamber 41 .

[0070] In other embodiments, the condensate collection assembly 4 may also be a steam-water separator, which can also dehydrate the pressurized air and collect the separated water.

[0071] In a preferred embodiment, referring to Figure 3 and Figure 4 The condensation water collection component 4 includes a condensation chamber 41 and a spiral condensation tube 43 arranged in the condensation chamber 41. The spiral condensation tube 43 has a first end and a second end. The first end extends out of the condensation chamber 41 to form an air inlet, and the second end is located inside the condensation chamber 41 and forms an air outlet.

[0072] Specifically, the pressurized air passing through the pressurization port of the compressor 2 enters the spiral condenser 43 through the air inlet, and then the pressurized air contacts the tube wall of the spiral condenser 43, so that the water vapor in the pressurized air condenses into liquid and is discharged from the air outlet, and the dehydrated pressurized air is also discharged from the air outlet, so that the pressurized air discharged from the air outlet contacts the cavity wall of the condensation chamber 41 to further dehydrate the pressurized air, thereby increasing the flow path of the pressurized air in the condensation chamber 41, so as to greatly improve the dehydration effect of the pressurized air, so as to further extend the service life of the adsorption cylinder 1.

[0073] Preferably, the second end is located below the first end, so that the liquid in the spiral condenser tube 43 can be discharged through the air outlet under the action of its own gravity.

[0074] Further, see Figure 3 and Figure 4 A guide plate 411 is provided in the condensation chamber 41 and is located below the spiral condensation tube 43. The guide plate 411 has a central area and an edge area surrounding the central area. The guide plate 411 is inclined downward from the central area to the edge area. The guide plate 411 divides the condensation chamber 41 into a first chamber and a second chamber located below the first chamber in the vertical direction. The peripheral sides of the first chamber and the second chamber are connected to each other.

[0075] Specifically, the liquid flowing out through the condensation tube drips onto the guide plate 411, and then the liquid quickly flows into the second chamber along the inclined direction of the guide plate 411, so that the liquid is collected in the second chamber, so as to isolate the collected liquid from the pressurized air to a certain extent, so as to avoid the pressurized air from taking away the liquid when flowing out of the condensation chamber 41, thereby ensuring the dehydration effect of the pressurized air; and the guide plate 411 is tilted downward from the central area to the edge area, which can speed up the efficiency of the liquid flowing along the guide plate 411 to the second chamber, so as to further avoid the pressurized air from taking away the liquid when discharging from the condensation chamber 41, thereby further ensuring the dehydration effect of the pressurized air.

[0076] Further, see Figure 5 The guide plate 411 is provided with guide ribs 412 extending from the central area to the edge area. The guide ribs 412 are arranged at intervals along the circumference of the central area, so that when the liquid flows into the second chamber through the inclined direction of the guide plate 411, the guide ribs 412 can guide the liquid to further accelerate the speed of the liquid flowing into the second chamber, so as to further avoid the situation where the pressurized air is carried away by the liquid when it is discharged from the condensation chamber 41, thereby further ensuring the dehydration effect of the pressurized air; at the same time, the guide ribs 412 can also increase the structural strength of the guide plate 411 to increase the service life of the guide plate 411.

[0077] Furthermore, the central area is a plane, and the second end is arranged opposite to the central area, so that the pressurized air discharged through the air outlet directly collides with the central area, and because the central area is a plane, the pressurized air is blocked by the central area and turns back and flows upward, thereby greatly alleviating the outward diffusion of the pressurized air in the central area, and further greatly improving the contact between the pressurized air and the liquid, so as to further ensure the dehydration effect of the pressurized air.

[0078] Further, refer to Figure 4 The second end is extended in the vertical direction so that the opening direction of the air outlet is perpendicular to the central area, so as to further improve the blocking effect of the central area on the pressurized air discharged through the air outlet, thereby further ensuring the dehydration effect of the pressurized air.

[0079] Further, see Figure 4The condensation chamber 41 has an inclined plate 413 located below the guide plate 411. The inclined plate 413 extends downward from one end to the drain port 415, so that the liquid flowing into the second cavity can all flow to the drain port 415 under the action of the inclined plate 413, so as to avoid the accumulation of liquid in the second cavity, so as to improve the efficiency of replenishing liquid to the humidification cup 3, thereby reducing the frequency of replenishing liquid to the humidification cup 3, so as to further improve the user experience; and greatly avoid the occurrence of odor caused by the accumulation of liquid in the second cavity, so as to greatly improve the cleanliness of the oxygen generator and the user experience.

[0080] The present application does not specifically limit the fixing method of the guide plate 411. Preferably, refer to Figure 4 The inclined plate 413 is provided with an upwardly protruding connecting protrusion 414, and the connecting protrusion 414 abuts against the bottom of the guide plate 411, so that a flow gap for liquid to flow is formed between the inclined plate 413 and the guide plate 411, and the connecting protrusion 414 is penetrated by a screw threadedly connected to the guide plate 411, so as to fix the guide plate 411; and, since the guide plate 411 is fixed by screw fixing, it is necessary to open a hole for the screw to pass through on the inclined plate 413, and by setting the connecting protrusion 414, the hole for the screw to pass through can be set on the connecting protrusion 414, so as to raise the position of the orifice, avoid the liquid from leaking out through the hole for the screw to pass through, so as to increase the quality of the oxygen generator, and avoid the need to set a sealing structure between the inclined plate 413 and the guide plate 411, so as to reduce the production cost of the oxygen generator. In other implementation examples, connecting ribs connected to the cavity wall of the condensation chamber 41 are provided on the peripheral side of the guide plate 411, so as to fix the guide ribs 412 through the connecting ribs.

[0081] The present application does not specifically limit the manner in which the liquid in the condensation water collection assembly 4 enters the humidification cup 3. Preferably, refer to Figure 1 An electromagnetic pump 6 is provided between the condensation water collection component 4 and the humidification cup 3 , and the electromagnetic pump 6 is used to transport the liquid in the condensation water collection component 4 to the humidification cup 3 .

[0082] It can be understood that the condensate water collecting assembly 4 is connected to the humidification cup 3 through a connecting pipe, and the electromagnetic pump 6 is arranged in the connecting pipe, so that the liquid in the condensate water collecting assembly 4 can be pumped into the humidification cup 3 under the action of the electromagnetic pump 6 to provide power for the flow of the liquid, so that the relative position of the humidification cup 3 and the condensate water collecting assembly 4 is not restricted, so as to achieve the effect of facilitating the reasonable arrangement of the components of the oxygen generator and facilitating the compact design of the oxygen generator.

[0083] In other embodiments, the humidification cup 3 may be disposed below the condensation water collection assembly 4 so that the liquid automatically flows to the humidification cup 3 by utilizing the gravity of the liquid, thereby reducing the production cost of the oxygen generator.

[0084] In a preferred embodiment, referring to Figure 1 An air distribution valve 7 is provided between the condensation water collection assembly 4 and the adsorption cylinder 1 so that pressurized air can enter the adsorption cylinder 1 through the air distribution valve 7 .

[0085] In a preferred embodiment, referring to Figure 6 , Figure 7 and Figure 8 The humidification cup 3 includes a cup body 31, a cup cover 32, an air duct 33 and a purification disk 34. The cup body 31 has a humidification cavity for holding liquid inside. The cup cover 32 can be covered on the cup body 31. The cup cover 32 has an oxygen inlet 321 and an oxygen outlet 322, and a liquid inlet 323 is arranged on the cup cover 32. The air duct 33 is connected with the oxygen inlet 321 and extends to the lower part of the humidification cavity. The purification disk 34 is arranged on the cup cover 32. The liquid entering the humidification cup 3 through the liquid inlet 323 enters the humidification cavity after being purified by the purification disk 34, thereby achieving purification of the liquid, thereby ensuring the humidification quality of oxygen to improve the user experience.

[0086] In a preferred embodiment, referring to Fig. 9 The purification disk 34 includes an upper shell 341 and a lower shell 342 connected to each other. A receiving chamber is formed between the upper shell 341 and the lower shell 342. A purification component 343 is provided in the receiving chamber. The upper shell 341 is provided with a liquid guide port 345, and the lower shell 342 is provided with a liquid outlet. The liquid enters the receiving chamber through the liquid guide port 345 and enters the humidification chamber through the liquid outlet.

[0087] When the liquid generated by the condensation water collection component 4 enters the humidification cup 3, the liquid enters the accommodating chamber through the liquid inlet 323 and the liquid guide port 345, and then the purification component 343 located in the accommodating chamber purifies the liquid. The purified liquid enters the humidification chamber through the liquid outlet to achieve purification of the liquid.

[0088] The present application does not specifically limit the structure of the purification element 343. Preferably, the purification element 343 is a structure made of active antibacterial substances to purify the liquid. In other embodiments, the purification element 343 can also be a filter element used in the prior art for purifying water.

[0089] Specifically, the material of the purification element 343 can be filter cotton, activated carbon, medical stone or bio-ball, etc. The filter cotton has good permeability, can filter out flocculated particle impurities in the water, improve the transparency of the water, and its rough surface can absorb a large number of nitrifying bacteria and decompose harmful substances such as ammonia and nitrite in the water; activated carbon has the functions of filtering, purifying water, decolorizing, deodorizing, etc., can effectively remove organic matter, residual chlorine and other radioactive substances in the water, and has the effect of decolorizing and removing odor; medical stone can absorb nitrifying bacteria, effectively absorb amino-dissolved minerals in the water, and has a stabilizing effect on pH; the bio-ball is made of high-grade hydrophilic non-toxic plastic, and its internal structure is criss-crossed, which can enhance the filtering effect and facilitate the implantation of nitrifying bacteria.

[0090] In order to make the liquid contact with the purification member 343 evenly and improve the use efficiency and service life of the purification member 343, in a preferred implementation example, referring to Fig. 9 and Fig.10 A flow equalizing plate 344 for guiding the liquid is arranged between the upper shell 341 and the lower shell 342. The flow equalizing plate 344 is located above the purification element 343. The flow equalizing plate 344 is provided with a plurality of flow equalizing ribs 349. A flow channel is formed between two adjacent flow equalizing ribs 349. The flow channel is provided with a plurality of leakage holes 350.

[0091] Specifically, the liquid entering the purification disk 34 through the liquid guide port 345 first falls on the flow equalizer plate 344, and flows along the flow channel formed between two adjacent flow equalizer ribs 349, and in the process of the liquid flowing along the flow channel, part of the liquid flows to the bottom of the flow equalizer plate 344 through the leakage hole 350 and contacts with the purification component 343, so that the purification component 343 purifies the liquid; because the liquid entering the purification disk 34 first flows along the flow channel and part of the liquid flows to the bottom of the flow equalizer plate 344 through the leakage hole 350 during the flow, the liquid can then contact the entire purification component 343, so that the liquid can contact the purification component 343 more evenly, so as to avoid the situation where the liquid can only flow to a certain position of the purification component 343 and cause a large loss at a certain position of the purification component 343, so that the loss of the purification component 343 is more uniform, so as to extend the service life of the purification component 343, and at the same time ensure the purification effect of the liquid. In addition, the leakage hole 350 can also filter the mixed particles in the liquid to further improve the purification effect of the liquid.

[0092] The present application does not specifically limit the shape of the flow balancing rib 349. Preferably, refer to Fig. 9 and Fig.10Each flow balancing rib 349 is annular, and each flow balancing rib 349 is provided with a notch 351. The liquid in one of the flow channels flows to the adjacent flow channel through the notch 351, so that the liquid can contact the purification element 343 more evenly, so as to further make the loss of the purification element 343 more even, thereby further extending the service life of the purification element 343.

[0093] Further, see Fig.10 The gaps 351 of adjacent flow balancing ribs 349 are respectively opened on opposite sides of the flow balancing plate 344, thereby further enabling the liquid to contact the purification component 343 more evenly, avoiding the occurrence of flow dead corners in the flow channel, and further extending the service life of the purification component 343.

[0094] Preferably, a rib structure is provided inside the upper shell 341 corresponding to the flow balancing rib 349, and the rib structure contacts the flow balancing rib 349, or one end of the flow balancing rib 349 away from the flow balancing plate 344 contacts the inner wall of the upper shell 341 to increase the flow guiding effect on the liquid.

[0095] In other implementation examples, only one flow balancing rib 349 may be provided and the rib 349 may be spiral-shaped.

[0096] The present application does not specifically limit the configuration of the current equalizing plate 344, and any one of the following implementation examples may be adopted:

[0097] Implementation example 1. In this implementation example, the flow equalizing plate 344 is arranged in the accommodating cavity, the purification component 343 is arranged between the flow equalizing plate 344 and the lower shell 342, and the peripheral side of the flow equalizing plate 344 is sealed and connected to the upper shell 341 and / or the lower shell 342 to prevent the liquid from flowing downward through the gap between the flow equalizing plate 344 and the upper shell 341 or the lower shell 342, thereby improving the flow guidance effect on the liquid, and then improving the purification effect on the liquid.

[0098] Implementation Example 2: In this implementation example, refer to Fig. 9 The circumferential side of the flow equalizing plate 344 is provided with an edge extending continuously along its circumferential direction, and both ends of the edge are respectively sealed and connected to the upper shell 341 and the lower shell 342 to reduce the difficulty of producing the purification disk 34.

[0099] It should be noted that the sealing connections mentioned in the above-mentioned Implementation Examples 1 and 2 can be achieved by ultrasonic hot melting technology, and can also achieve a fixed connection between the guide plate 411 and the upper shell 341 and the lower shell 342; of course, it can also be achieved by other technical means, such as using sealants.

[0100] The present application does not specifically limit the formation method of the liquid guide port 345. Preferably, refer to Fig. 9The upper shell 341 is provided with a limiting rib 346, which is arranged to form a liquid guide port 345. A liquid guide tube 352 is provided in the cup cover 32, one end of the liquid guide tube 352 is connected to the liquid inlet 323, and the other end is connected to the liquid guide port 345, thereby increasing the distance between the purification disk 34 and the liquid inlet 323, so as to facilitate the assembly of the purification disk 34, and at the same time reduce the difficulty of connecting the purification disk 34 with the liquid inlet 323. And the connecting position of the liquid guide tube 352 and the liquid guide port 345 is located outside the upper shell 341, so as to avoid the situation that the liquid guide tube 352 needs to be extended into the upper shell 341 to affect the smoothness of liquid flow.

[0101] Preferably, the limiting rib 346 is located at the edge of the upper shell 341 so that the limiting rib 346 and other structures can be avoided to facilitate the assembly of the purification disk 34, and at the same time, the liquid flows from the side of the guide plate 411 to the center.

[0102] The present application does not specifically limit the communication method between the liquid guide tube 352 and the liquid inlet 323. Preferably, refer to Figure 8 The liquid guide tube 352 is integrally formed with the cup cover 32 to reduce the number of parts required to be assembled when assembling the humidifying cup 3, and at the same time, it can also increase the stability of the connection between the liquid guide tube 352 and the liquid inlet 323. In other implementation examples, the liquid guide tube 352 can also be inserted into the liquid inlet 323 to achieve the connection between the liquid guide tube 352 and the liquid inlet 323.

[0103] The present application does not specifically limit the communication method between the liquid guide port 345 and the liquid guide tube 352. Preferably, refer to Figure 8 The limiting rib 346 is sleeved on the outside of the liquid guide tube 352 to prevent the liquid from accumulating at the connection position between the liquid guide tube 352 and the limiting rib 346, so as to ensure that more liquid enters the humidification chamber; in addition, the connection between the limiting rib 346 and the liquid guide tube 352 can also position and assist in fixing the purification disk 34, so as to increase the stability of the purification disk 34. In other implementation examples, the liquid guide tube 352 can also be connected to the liquid guide port 345 by having one end of the bottom of the liquid guide tube 352 abut against the top wall of the limiting rib 346, or the liquid guide tube 352 is connected to the liquid guide port 345 through a connector.

[0104] In other embodiments, the limiting rib 346 may be omitted, and the liquid guide port 345 may be formed by a hole structure disposed on the top end surface of the upper shell 341 .

[0105] The present application does not specifically limit the formation method of the liquid outlet. Preferably, refer to Fig. 9The lower shell 342 is provided with a plurality of liquid outlet holes 348, and the plurality of liquid outlet holes 348 together form a liquid outlet, so that the aperture of a single liquid outlet hole 348 can be made relatively small, so as to increase the residence time of the liquid in the purification disk 34, thereby increasing the contact time between the liquid and the purification element 343, so as to increase the purification time of the purification element 343 for the liquid, thereby greatly improving the purification effect of the liquid.

[0106] In other implementation examples, the liquid outlet may also be a single hole structure disposed at the bottom of the lower shell 342 .

[0107] The present application does not specifically limit the connection method between the purification plate 34 and the cup cover 32. Preferably, refer to Figure 7 and Figure 8 The purification disk 34 is detachably connected to the cup cover 32 , so that the user can replace the purification disk 34 to ensure the purification effect of the humidification cup 3 on the liquid.

[0108] The present application does not specifically limit the detachable connection method between the purification plate 34 and the cup cover 32. Preferably, refer to Figure 7 and Figure 8 The cup cover 32 is provided with at least two snap-fitting parts 324, and the top of the purification disk 34 is provided with a matching part 347 that can be snap-fitted with the snap-fitting part 324. Then, when the purification disk 34 is disassembled and assembled, it is only necessary to release the snap-fitting between the snap-fitting part 324 and the matching part 347, so as to reduce the difficulty of disassembling and assembling the purification disk 34 and improve the efficiency of disassembling and assembling the purification disk 34.

[0109] The present application does not make any specific limitation on the structure of the clamping portion 324 . Preferably, the clamping portion 324 includes a plurality of elastic arms, each of which is provided with a clamping protrusion, and the clamping protrusion is used to clamp the mating portion 347 .

[0110] It can be understood that the plurality of elastic arms are sequentially arranged along the circumference of the matching portion 347 , and the snap-fitting protrusions are located on the inner side of the elastic arms to increase the snap-fitting points of the matching portion 347 .

[0111] Specifically, when installing the purification plate 34, first align the purification plate 34 with the cup cover 32, and at the same time align the matching portion 347 with the clamping portion 324, and then apply pressure to the purification plate 34 in the direction of the cup cover 32 to make the purification plate 34 move in the direction close to the cup cover 32, so that the matching portion 347 contacts the clamping protrusion, and then continue to apply pressure to the purification plate 34 in the direction of the cup cover 32, and the matching portion 347 applies an outward deformation extrusion force to the clamping protrusion, and then the elastic arm is elastically deformed under the action of the clamping protrusion, so that part of the matching portion 347 passes over the clamping protrusion, and at this time the elastic arm recovers the deformation under the action of its own elastic force, and finally the clamping protrusion and the matching portion 347 are clamped and matched together to complete the installation of the purification plate 34.

[0112] When the purification plate 34 is disassembled, a pulling force is applied to the purification plate 34 away from the cup cover 32, so that the purification plate 34 drives the matching part 347 to move, and the matching part 347 applies an outward extrusion force to the snap-fitting protrusion, and then the elastic arm is elastically deformed under the action of the snap-fitting protrusion, so that the matching part 347 is separated from the snap-fitting protrusion and the snap-fitting is released, so as to complete the disassembly of the purification plate 34.

[0113] To sum up, when disassembling and assembling the purification disc 34, it is only necessary to apply a pulling force away from the cup cover 32 or a pressure toward the cup cover 32 to the purification disc 34, thereby greatly reducing the difficulty of disassembling and assembling the purification disc 34, thereby improving the disassembly and assembly effect of the purification disc 34, and further greatly improving the replacement efficiency of the purification disc 34.

[0114] Preferably, the fitting portion 347 includes a snap-fit ​​ball and a connecting post disposed at the bottom of the snap-fit ​​ball, the diameter of the snap-fit ​​ball is larger than the diameter of the connecting post, and the connecting post is fixedly connected to the top of the upper shell 341 .

[0115] In other implementation examples, the clamping portion 324 may also be provided with only one elastic arm, and multiple clamping portions 324 are arranged in sequence along the circumference of the upper shell 341, and the clamping protrusion on each elastic arm is located on the side of the elastic arm away from the central axis of the upper shell 341 or on the side facing the central axis of the upper shell 341, and the mating portion 347 is a clamping rib position that can be clamped with the clamping protrusion.

[0116] Of course, in addition to the above-mentioned snap-fitting method of the snap-fitting portion 324 and the matching portion 347 to achieve the detachable connection between the purification plate 34 and the cup cover 32, other methods may also be used, such as screw connection.

[0117] In a preferred embodiment, referring to Figure 7 and Figure 8 At least part of the purification disk 34 is located outside the cup cover 32, so that when the user removes the purification disk 34, he can hold the part of the purification disk 34 outside the cup cover 32 to facilitate the removal of the purification disk 34.

[0118] In other embodiments, the purification disc 34 may also be fixedly connected to the cup cover 32, that is, the purification disc 34 cannot be removed from the cup cover 32. In this way, the cup cover 32 and the purification disc 34 may be treated as replaceable parts.

[0119] The present application does not make any specific limitation on the exhaust method of the humidified oxygen. Preferably, the peripheral side of the purification disk 34 is spaced apart from the cavity wall of the humidification chamber to form an air passage between the peripheral side of the purification disk 34 and the cavity wall of the humidification chamber, so that the oxygen humidified by the liquid flows from the peripheral side of the purification disk 34 to the air outlet, so as to ensure the smooth flow of the humidified oxygen in the humidification chamber, thereby ensuring the exhaust efficiency of the humidification cup 3.

[0120] In other embodiments, a hole structure penetrating the purification disk 34 may be provided on the purification disk 34 so that the humidified oxygen flows upward through the hole structure penetrating the purification disk 34 .

[0121] The present application does not make any specific limitation on the arrangement of the air duct 33. Preferably, the air duct 33 passes through the purification disk 34 and extends to the lower part of the humidification chamber, thereby making the flow path of oxygen entering the humidification chamber straighter, so as to improve the smoothness of oxygen entering the humidification chamber, thereby ensuring the air intake efficiency of the humidification cup 3, and enabling the air duct 33 to be closer to the central axis of the cup body 31, so as to improve the humidification effect of the oxygen.

[0122] Furthermore, the purification disk 34 is coaxially provided with a center hole, and one end of the bottom of the air guide tube 33 passes through the center hole and extends to the bottom of the humidification chamber to reduce the difficulty of disassembling and assembling the purification disk 34 and improve the efficiency of disassembling and assembling the purification disk 34.

[0123] In other embodiments, the air duct 33 may also be disposed on the side of the purification disk 34 , that is, there is space for arranging the air duct 33 between the side of the purification disk 34 and the cup cover 32 so that the air duct 33 and the purification disk 34 do not interfere with each other.

[0124] In a preferred embodiment, referring to Figure 7 The cup cover 32 is provided with a pressure relief port 325. It can be understood that a pressure relief valve is provided at the pressure relief port 325, so that when the pressure in the humidification chamber is relatively high, the oxygen in the humidification chamber can be discharged through the pressure relief port 325, so that the pressure in the humidification chamber is maintained within a relatively safe range, thereby improving the safety of the humidification cup 3.

[0125] The present application does not specifically limit the connection method between the cup cover 32 and the cup body 31. Preferably, refer to Figure 7 and Figure 8 The cup cover 32 is threadedly connected to the cup body 31 to increase the sealing of the humidification chamber and facilitate the replacement of the purification component 343.

[0126] In other embodiments, the cup cover 32 may also be connected to the cup body 31 by interference fit.

[0127] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0128] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0129] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An oxygen concentrator, characterized in that: include: an adsorption cylinder filled with an adsorbent for adsorbing nitrogen; A compressor, which is used to provide pressurized air to the adsorption cylinder; A humidification cup, which is used to humidify the oxygen from the adsorption cylinder, and the humidification cup has a liquid inlet; A condensation water collection component has a drain port, an air inlet connected to the compressor, and an exhaust port connected to the adsorption cylinder. The condensation water collection component is used to condense water vapor in the pressurized air generated by the compressor into liquid. The liquid is discharged through the drain port and enters the humidification cup through the liquid inlet.

2. An oxygen concentrator according to claim 1, characterized in that: The condensation water collection assembly includes a condensation chamber and a cooling structure arranged in the condensation chamber, and the cooling structure is used to cool the condensation chamber.

3. An oxygen concentrator according to claim 2, characterized in that: The cooling structure comprises a semiconductor refrigeration sheet, and the cold end of the semiconductor refrigeration sheet is arranged close to the condensation chamber.

4. An oxygen concentrator according to claim 3, characterized in that: The cooling structure further includes heat dissipation fins and a cooling fan. The heat dissipation fins are arranged close to the hot end of the semiconductor refrigeration plate, and the cooling fan is located on a side of the heat dissipation fins away from the semiconductor refrigeration plate.

5. An oxygen concentrator according to any one of claims 1 to 4, characterized in that: The condensation water collection assembly includes a condensation chamber and a spiral condensation tube arranged in the condensation chamber, the spiral condensation tube has a first end and a second end, the first end extends out of the condensation chamber to form the air inlet, and the second end is located inside the condensation chamber and forms an air outlet.

6. An oxygen concentrator according to claim 5, characterized in that: The condensation chamber is provided with a guide plate located below the spiral condensation tube, the guide plate has a central area and an edge area surrounding the central area, the guide plate is inclined downward from the central area to the edge area, the guide plate divides the condensation chamber into a first chamber and a second chamber located below the first chamber in the vertical direction, and the peripheral sides of the first chamber and the second chamber are connected to each other.

7. An oxygen concentrator according to claim 6, characterized in that: The guide plate is provided with guide ribs extending from the central area to the edge area, and the guide ribs are arranged at intervals along the circumference of the central area.

8. An oxygen concentrator according to claim 6, characterized in that: The central area is a plane, and the second end is arranged opposite to the central area.

9. An oxygen concentrator according to claim 6, characterized in that: The condensation chamber has an inclined plate located below the guide plate, and the inclined plate extends downwardly from one end to the drain port.

10. An oxygen concentrator according to any one of claims 1 to 4, characterized in that: An electromagnetic pump is provided between the condensation water collection assembly and the humidification cup, and the electromagnetic pump is used to transport the liquid in the condensation water collection assembly to the humidification cup.

11. The oxygen concentrator according to any one of claims 1 to 4, characterized in that: The humidification cup comprises a cup body, a cup cover, an air duct and a purification disk. The cup body has a humidification cavity for containing liquid inside. The cup cover can be covered on the cup body. The cup cover has an oxygen inlet and an oxygen outlet, and the liquid inlet is arranged on the cup cover. The air duct is communicated with the oxygen inlet and extends to the lower part of the humidification cavity. The purification disk is arranged on the cup cover. The liquid entering the humidification cup through the liquid inlet enters the humidification cavity after being purified by the purification disk.

12. An oxygen concentrator according to claim 11, characterized in that: The purification disk includes an upper shell and a lower shell connected to each other, a receiving cavity is formed between the upper shell and the lower shell, a purification component is arranged in the receiving cavity, the upper shell is provided with a liquid guide port, the lower shell is provided with a liquid outlet, the liquid enters the receiving cavity through the liquid guide port, and enters the humidification cavity through the liquid outlet.

13. An oxygen concentrator according to claim 12, characterized in that: A flow equalizing plate is provided in the accommodating cavity, the purification component is provided between the flow equalizing plate and the lower shell, the flow equalizing plate is provided with a plurality of flow equalizing ribs, a flow channel is formed between two adjacent flow equalizing ribs, and a plurality of leakage holes are opened in the flow channel.

14. An oxygen concentrator according to claim 11, characterized in that: The cup cover is provided with at least two clamping parts, and the top of the purification disc is provided with a matching part that can be clamped and matched with the clamping parts.

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