Oxygen generator

Abstract

The utility model 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 application belongs to the technical field of medical equipment, and particularly relates to an oxygen generator. BACKGROUND

[0002] The oxygen generator is one of commonly used medical equipment in medical institutions, can continuously supply oxygen, utilizes gas separation technology to separate air into oxygen and nitrogen, mainly comprises a compressor, a sieve drum, a humidification cup and the like, wherein the compressor is used for compressing air and sending the compressed air into the sieve drum, so that the adsorbent in the sieve drum adsorbs nitrogen to separate oxygen and nitrogen, and the separated oxygen enters the humidification cup for humidification and is inhaled by a user. However, since the air contains moisture, the moisture in the air will cause the adsorbent to be humidified and caked after the compressed air enters the sieve drum, thereby greatly affecting the service life of the sieve drum; and since the oxygen is humidified by the humidification cup, the humidification cup needs to be frequently filled with water by the user, thereby affecting the use experience of the user. CONTENT OF THE UTILITY MODEL

[0003] The application provides an oxygen generator to improve the phenomenon of humidification and caking of the adsorbent and prolong the service life of the sieve drum.

[0004] The technical scheme adopted by the application is as follows:

[0005] An oxygen generator comprises:

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

[0007] A compressor for providing pressurized air to the adsorption cylinder;

[0008] A humidification cup for humidifying oxygen from the adsorption cylinder, and the humidification cup has a liquid inlet;

[0009] A condensation water collecting assembly having a liquid outlet, an air inlet communicated with the compressor and an air outlet communicated with the adsorption cylinder, the condensation water collecting assembly is used for condensing water vapor in the pressurized air generated by the compressor into liquid, and the liquid is discharged through the liquid outlet and enters the humidification cup through the liquid inlet.

[0010] By adopting the technical scheme, when the oxygen generator in the application is used, the compressor compresses air and delivers the compressed air to the condensation water collecting assembly through the air inlet of the condensation water collecting assembly, the pressurized air entering the condensation water collecting assembly enters the adsorption cylinder through the air outlet, so that the adsorbent in the adsorption cylinder adsorbs nitrogen, so as to separate oxygen and nitrogen, and the separated oxygen is humidified by water in the humidification cup and then inhaled by the user; and after the pressurized air enters the condensation water collecting assembly, the water vapor in the pressurized air condenses into liquid in the condensation water collecting assembly, thereby greatly reducing the humidity of the pressurized air entering the adsorption cylinder, improving the phenomenon of adsorbent caking due to humidification, thereby greatly prolonging the service life of the adsorption cylinder and reducing the use cost of the user; in addition, the liquid condensed in the condensation water collecting assembly is discharged through the liquid outlet of the condensation water collecting assembly and enters the humidification cup through the liquid inlet to supplement water for the humidification cup, thereby greatly reducing the frequency of supplementing water for the humidification cup, thereby greatly improving the user experience.

[0011] Optionally, the condensation water collecting assembly comprises 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 pressurized by the compressor will rise, and the cooling structure can cool the condensation chamber, so that the pressurized air with a high temperature enters the condensation chamber, and the pressurized air contacts the condensation chamber with a low temperature, so that the temperature of the pressurized air is reduced to below the dew point temperature, thereby causing the water vapor to condense into liquid, so as to realize the dehydration of the pressurized air, thereby greatly improving the dehydration effect of the pressurized air, further improving the phenomenon of adsorbent caking due to humidification, and further prolonging the service life of the adsorption cylinder.

[0013] Optionally, the cooling structure comprises a semiconductor refrigeration sheet, and a cold end of the semiconductor refrigeration sheet 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 for cooling the condensation chamber is reduced, thereby reducing the energy consumption of the oxygen generator, prolonging the service life of the cooling structure, and reducing the failure rate of the oxygen generator; in addition, since the semiconductor refrigeration sheet has a small size and a light weight, it is also convenient to design the oxygen generator to be small and light.

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

[0016] By adopting the technical scheme, the heat of the hot end of the semiconductor refrigeration sheet can be transferred to the heat dissipation fins, so as to improve the heat dissipation efficiency of the semiconductor refrigeration sheet, thereby improving the cooling effect of the condensation chamber on the pressurized air, and further improving the dehydration effect on the pressurized air. The cooling fan is located on the side of the heat dissipation fins away from the semiconductor refrigeration sheet, so that the cooling fan can dissipate heat from the heat dissipation fins, thereby improving the heat dissipation efficiency of the heat dissipation fins, further improving the heat dissipation efficiency of the semiconductor refrigeration sheet, and further improving the dehydration effect on the pressurized air, thereby prolonging the service life of the adsorption cylinder.

[0017] Optionally, the condensation water collecting assembly comprises a condensation chamber and a spiral condensation pipe arranged in the condensation chamber, the spiral condensation pipe 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 technical scheme, the pressurized air passing through the compressor pressurization port enters the spiral condensation pipe through the air inlet, and then the pressurized air contacts the pipe wall of the spiral condensation pipe, 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. The pressurized air discharged from the air outlet contacts the cavity wall of the condensation chamber, so as to further dehydrate the pressurized air, thereby increasing the flow path of the pressurized air in the condensation chamber, greatly improving the dehydration effect on the pressurized air, and further prolonging the service life of the adsorption cylinder.

[0019] Optionally, a guide plate is arranged below the spiral condensation pipe in the condensation chamber, the guide plate has a central region and an edge region surrounding the central region, the guide plate is arranged downwardly inclined from the central region to the edge region, the guide plate divides the condensation chamber in the vertical direction into a first chamber and a second chamber below the first chamber, and the circumferential sides of the first chamber and the second chamber are in communication with each other.

[0020] By adopting the technical scheme, the liquid flowing out of the condensation pipe drops onto the guide plate, and then the liquid quickly flows into the second chamber along the inclined direction of the guide plate, so as to collect the liquid in the second chamber, thereby isolating the collected liquid from the pressurized air to a certain extent, so as to avoid the situation that the pressurized air takes away the liquid when it flows out of the condensation chamber, thereby ensuring the dehydration effect on the pressurized air. The guide plate is arranged downwardly inclined from the central region to the edge region, which can accelerate the flow of the liquid along the guide plate to the second chamber, thereby further avoiding the situation that the pressurized air takes away the liquid when it flows out of the condensation chamber, thereby further ensuring the dehydration effect on the pressurized air.

[0021] Optionally, the deflector plate is provided with a deflector rib extending from the central region to the edge region, and the deflector rib is arranged at intervals along the circumference of the central region.

[0022] By adopting the above technical scheme, since the deflector plate is provided with a deflector rib extending from the central region to the edge region, when the liquid flows into the second cavity through the inclined direction of the deflector plate, the deflector rib can guide the liquid to further accelerate the speed of the liquid flowing into the second cavity, so as to further avoid the situation that the liquid is taken away by the pressurized air when the pressurized air is discharged from the condensing chamber, thereby further ensuring the dehydration effect of the pressurized air. Meanwhile, the deflector rib can also increase the structural strength of the deflector plate to increase the service life of the deflector plate.

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

[0024] By adopting the above technical scheme, since the second end is arranged opposite to the central region, the pressurized air discharged from the air outlet directly collides with the central region, and since the central region is a plane, the pressurized air is turned back and flows upward under the blocking action of the central region, thereby greatly relieving the situation that the pressurized air diffuses outward at the central region, and greatly improving the phenomenon that the pressurized air contacts the liquid, so as to further ensure the dehydration effect of the pressurized air.

[0025] Optionally, the condensing chamber has an inclined plate located below the deflector plate, and the inclined plate extends downward from one end to the liquid discharge port.

[0026] By adopting the above technical scheme, since the inclined plate extends downward from one end to the liquid discharge port, the liquid flowing into the second cavity can flow to the liquid discharge port under the action of the inclined plate, so as to avoid the situation that the liquid accumulates in the second cavity, thereby improving the efficiency of supplementing the liquid to the humidification cup, reducing the frequency of supplementing the liquid to the humidification cup, and further improving the user experience. Moreover, the situation that the liquid deteriorates and produces an odor due to accumulation in the second cavity is greatly avoided, thereby greatly improving the cleanliness of the oxygen generator and the user experience.

[0027] Optionally, an electromagnetic pump is arranged between the condensing water collecting assembly and the humidification cup, and the electromagnetic pump is used to deliver the liquid in the condensing water collecting assembly to the humidification cup.

[0028] By adopting the technical scheme, the electromagnetic pump is arranged between the condensation water collecting assembly and the humidification cup, so that the liquid in the condensation water collecting assembly can be pumped to the humidification cup under the action of the electromagnetic pump, thereby providing power for the flow of the liquid, and the relative position of the humidification cup and the condensation water collecting assembly is not limited, so as to facilitate reasonable arrangement of the components of the oxygen generator and facilitate compact design of the oxygen generator.

[0029] Optionally, the humidification cup comprises a cup body, a cup cover, a gas guide pipe and a purification disc, the cup body has a humidification cavity for containing liquid inside, the cup cover can be arranged on the cup body, the cup cover has an oxygen inlet and an oxygen outlet, the liquid inlet is arranged on the cup cover, the gas guide pipe is in communication with the oxygen inlet and extends to the lower part of the humidification cavity, and the purification disc is arranged on the cup cover. The liquid entering the humidification cup through the liquid inlet is purified by the purification disc and then enters the humidification cavity.

[0030] By adopting the technical scheme, the liquid entering the humidification cup through the liquid inlet is purified by the purification disc and then enters the humidification cavity, thereby realizing purification of the liquid and ensuring the humidification quality of oxygen, so as to improve the user experience.

[0031] Optionally, the purification disc comprises an upper shell and a lower shell connected to each other, a containing cavity is formed between the upper shell and the lower shell, a purification member is arranged in the containing cavity, the upper shell is provided with a liquid guide hole, and the lower shell is provided with a liquid outlet hole. The liquid enters the containing cavity through the liquid guide hole and then enters the humidification cavity through the liquid outlet hole.

[0032] By adopting the technical scheme, when the liquid generated by the condensation water collecting assembly enters the humidification cup, the liquid enters the containing cavity through the liquid inlet and the liquid guide hole, and then the purification member in the containing cavity purifies the liquid, and the purified liquid enters the humidification cavity through the liquid outlet hole, thereby realizing purification of the liquid.

[0033] Optionally, the containing cavity is provided with a flow uniformizing plate, the purification member is arranged between the flow uniformizing plate and the lower shell, the flow uniformizing plate is provided with a plurality of flow uniformizing ribs, a flow channel is formed between adjacent two flow uniformizing ribs, and a plurality of liquid leakage holes are arranged in the flow channel.

[0034] By adopting the above technical solution, the liquid entering the purification tray through the liquid guide port first falls onto the flow equalization plate and flows along the flow channel formed between two adjacent flow equalization ribs. During the flow of the liquid along the flow channel, some of the liquid flows through the leakage hole to the bottom of the flow equalization plate and comes into contact with the purification component, so that the purification component purifies the liquid. Since the liquid entering the purification tray first flows along the flow channel and some of the liquid flows through the leakage hole to the bottom of the flow equalization plate during the flow, the liquid can come into contact with the entire purification component. This avoids the situation where the liquid can only flow to a certain position of the purification component, resulting in greater wear in a certain part of the purification component. This makes the wear of the purification component more uniform, thereby extending the service life of the purification component and ensuring the purification effect of the liquid.

[0035] Optionally, the cup lid has at least two snap-fit ​​parts, and the top of the purification plate has a mating part that can snap-fit ​​with the snap-fit ​​parts.

[0036] By adopting the above technical solution, the design of the snap-fit ​​part and the mating part allows the purification tray to be separated from the cup lid, enabling the replacement of the purification tray and ensuring 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. Furthermore, when disassembling and assembling the purification tray, it is only necessary to release the snap-fit ​​between the snap-fit ​​part and the mating part, thereby reducing the difficulty of disassembling and assembling the purification tray and improving the efficiency of disassembly and assembly.

[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 of this application includes an adsorption cylinder, a compressor, a humidification cup, and a condensate collection assembly. The adsorption cylinder is filled with an adsorbent for adsorbing nitrogen. The compressor provides pressurized air to the adsorption cylinder. The humidification cup humidifies the oxygen from the adsorption cylinder and has a liquid inlet. The condensate collection assembly has a drain outlet, an air inlet connected to the compressor, and an exhaust outlet connected to the adsorption cylinder. The condensate collection assembly condenses water vapor in the pressurized air generated by the compressor into liquid. The liquid is discharged through the drain outlet and enters the humidification cup through the inlet to replenish water to the humidification cup, thereby greatly reducing the frequency of replenishing water to the humidification cup and thus greatly improving the user experience. Furthermore, after the pressurized air enters the condensate collection assembly, the water vapor in the pressurized air condenses into liquid in the condensate collection assembly, which greatly reduces the humidity of the pressurized air entering the adsorption cylinder, thereby improving the phenomenon of adsorbent clumping due to humidification and greatly extending the service life of the adsorption cylinder, thus reducing the user's operating costs.

[0039] 2. The condensation water collecting assembly in the application comprises a condensation chamber and a cooling structure arranged in the condensation chamber, the cooling structure is used for cooling the condensation chamber, so that the temperature of the pressurized air is reduced to below the dew point temperature after the pressurized air with a high temperature enters the condensation chamber and contacts the condensation chamber with a low temperature, so that the water vapor is condensed into liquid, thereby improving the dehydration effect of the pressurized air, further improving the phenomenon of caking of the adsorbent due to humidification, and further prolonging the service life of the adsorption cylinder.

[0040] 3. The cooling structure in the application comprises a semiconductor refrigeration sheet, the cold end of the semiconductor refrigeration sheet is arranged close to the condensation chamber, thereby improving the cooling efficiency of the condensation chamber and reducing the energy consumption when the condensation chamber is cooled, so as to reduce the energy consumption of the oxygen generator, prolong the service life of the cooling structure, and reduce the failure rate of the oxygen generator. In addition, due to the small size and light weight of the semiconductor refrigeration sheet, the oxygen generator can be designed to be small and light. BRIEF DESCRIPTION OF DRAWINGS

[0041] The drawings described herein are used to provide further understanding of the application, and form a part of the application. The schematic embodiments of the application and the description thereof are used to explain the application, and do not constitute an improper limitation on the application. In the drawings:

[0042] Figure 1 It is a partial structure schematic diagram of the oxygen generator in an embodiment of the application;

[0043] Figure 2 It is a structure schematic diagram of the condensation water collecting assembly in an embodiment of the application;

[0044] Figure 3 It is a sectional view of the condensation water collecting assembly in an embodiment of the application;

[0045] Figure 4 It is another perspective sectional view of the condensation water collecting assembly in an embodiment of the application;

[0046] Figure 5 It is a structure schematic diagram of the flow guide plate in an embodiment of the application;

[0047] Figure 6 It is a structure schematic diagram of the humidification cup in an embodiment of the application;

[0048] Figure 7 It is a sectional view of the humidification cup in an embodiment of the application;

[0049] Figure 8 It is another perspective sectional view of the humidification cup in an embodiment of the application;

[0050] Figure 9 An exploded structural schematic view of the purification disc according to an embodiment of the present application;

[0051] Figure 10 A structural schematic view of the flow uniformizing plate according to an 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 portion; 325, pressure relief port; 33, air guide pipe; 34, purification disc; 341, upper shell; 342, lower shell; 343, purification element; 344, flow uniformizing plate; 345, liquid guide port; 346, limiting rib; 347, matching portion; 348, liquid outlet hole; 349, flow uniformizing rib; 350, liquid leakage hole; 351, notch; 352, liquid guide pipe; 4, condensation water collecting assembly; 41, condensation chamber; 411, flow guide plate; 412, flow guide rib; 413, inclined plate; 414, connecting protrusion; 415, liquid discharge port; 42, cooling structure; 421, semiconductor refrigeration sheet; 422, heat dissipation fin; 423, cooling fan; 43, spiral condensation pipe; 5, machine shell; 6, electromagnetic pump; 7, gas distribution valve. DETAILED DESCRIPTION

[0053] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0054] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0055] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the present application.

[0056] In this application, unless otherwise clearly indicated and limited, the terms "mount", "connect", "connection", "fixed", "fixedly connected" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, can also be communication; can be direct connection, can also be indirect connection through intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0057] In this application, unless otherwise clearly indicated and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description referring to the terms "embodiment", "example", "one embodiment", "exemplary" or "specific example" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description of the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0058] With reference to Figures 1 to 10 , an oxygen generator is disclosed, comprising an adsorption cylinder 1, a compressor 2, a humidification cup 3 and a condensation water collecting assembly 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 oxygen from the adsorption cylinder 1, and the humidification cup 3 has a liquid inlet 323; the condensation water collecting assembly 4 has a liquid outlet 415, an air inlet communicated with the compressor 2 and an air outlet communicated with the adsorption cylinder 1, and the condensation water collecting assembly 4 is used to condense water vapor in the pressurized air generated by the compressor 2 into liquid, which is discharged through the liquid outlet 415 and enters the humidification cup 3 through the liquid inlet 323.

[0059] In use of the oxygen generator in the application, the compressor 2 compresses air and delivers the compressed air into the condensation water collecting assembly 4 through the air inlet of the condensation water collecting assembly 4, the pressurized air entering the condensation water collecting assembly 4 enters the adsorption cylinder 1 through the air outlet, so that the adsorbent in the adsorption cylinder 1 adsorbs nitrogen, so as to separate oxygen and nitrogen, and the separated oxygen is humidified by water in the humidifying cup 3 and then inhaled by the user; and after the pressurized air enters the condensation water collecting assembly 4, the water vapor in the pressurized air is condensed into liquid in the condensation water collecting assembly 4, thereby greatly reducing the humidity of the pressurized air entering the adsorption cylinder 1, improving the phenomenon of adsorbent caking due to humidification, thereby greatly prolonging the service life of the adsorption cylinder 1, and reducing the use cost of the user; in addition, the liquid condensed in the condensation water collecting assembly 4 is discharged through the liquid outlet 415 of the condensation water collecting assembly 4 and enters the humidifying cup 3 through the liquid inlet 323 to supplement water for the humidifying cup 3, thereby greatly reducing the frequency of supplementing water for the humidifying cup 3, and further greatly improving the user experience.

[0060] The structure of the condensation water collecting assembly 4 is not specifically limited in the application, preferably, referring to Figure 2 and Figure 3 , the condensation water collecting assembly 4 comprises a condensation chamber 41 and a cooling structure 42 arranged in the condensation chamber 41, and the cooling structure 42 is used for cooling the condensation chamber 41.

[0061] Specifically, the temperature of the air will rise after being pressurized by the compressor 2, and the cooling structure 42 can cool the condensation chamber 41, so that the pressurized air with a high temperature enters the condensation chamber 41, and the pressurized air contacts the condensation chamber 41 with a low temperature, so that the temperature of the pressurized air is reduced to below the dew point temperature, thereby causing the water vapor to condense into liquid, achieving dehydration of the pressurized air, thereby greatly improving the dehydration effect of the pressurized air, further improving the phenomenon of adsorbent caking due to humidification, and further prolonging the service life of the adsorption cylinder 1.

[0062] The forming mode of the condensation chamber 41 is not specifically limited in the application, preferably, referring to Figure 1 , the oxygen generator further comprises a machine shell 5, and a separate box body is arranged in the machine shell 5, the inside of the box body forms the condensation chamber 41, and the adsorption cylinder 1, the compressor 2 and the condensation water collecting assembly 4 are arranged in the inside of the machine shell 5. In other embodiments, the condensation chamber 41 can also be formed by other wall bodies in the inside of the machine shell 5 and the wall body of the machine shell 5.

[0063] The structure of the cooling structure 42 is not specifically limited in the application, preferably, referring to Figure 2 and Figure 3 , the cooling structure 42 comprises a semiconductor refrigeration sheet 421, and the 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, prolong the service life of the cooling structure 42, and 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 design the oxygen generator to be small and light.

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

[0066] It can be understood that the heat dissipation fin 422 is arranged close to the hot end of the semiconductor refrigeration sheet 421, so that the heat of the hot end of the semiconductor refrigeration sheet 421 can be transferred to the heat dissipation fin 422, thereby improving the heat dissipation efficiency of the semiconductor refrigeration sheet 421, and improving the cooling effect of the condensation chamber 41 by the semiconductor refrigeration sheet 421, thereby improving the dehydration effect of the pressurized air. And because the cooling fan 423 is located on the side of the heat dissipation fin 422 away from the semiconductor refrigeration sheet 421, the cooling fan 423 can dissipate heat from the heat dissipation fin 422, thereby improving the heat dissipation efficiency of the heat dissipation fin 422, and further improving the heat dissipation efficiency of the semiconductor refrigeration sheet 421, thereby further improving the dehydration effect of the pressurized air and prolonging the service life of the adsorption cylinder 1.

[0067] Preferably, referring to Figure 2 and Figure 3 , the open end of the heat dissipation fin 422 is arranged away from the semiconductor refrigeration sheet 421, that is, the side of the heat dissipation channel of the heat dissipation fin 422 is arranged away from the semiconductor refrigeration sheet 421. On the one hand, it ensures the contact area between the heat dissipation fin 422 and the semiconductor refrigeration sheet 421, thereby improving 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 dissipation fin 422, thereby improving the heat dissipation efficiency of the heat dissipation fin 422, and further ensuring the cooling efficiency of the condensation chamber 41 by the semiconductor refrigeration sheet 421.

[0068] Preferably, the cold end and the hot end of the semiconductor refrigeration sheet 421 are coated with a layer of thermal conductive silicone grease, so that the semiconductor refrigeration sheet 421 contacts the outer wall of the condensation chamber 41 and the heat dissipation fin 422 through the layer of thermal conductive silicone grease, thereby further improving the heat dissipation efficiency of the semiconductor refrigeration sheet 421 and further ensuring the cooling efficiency of the condensation chamber 41.

[0069] In other embodiments, the cooling structure 42 can also only include a cooling fan to cool the condensing chamber 41 by the cooling fan.

[0070] In other embodiments, the condensing water collecting assembly 4 can also be a 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 condensing water collecting assembly 4 includes a condensing chamber 41 and a spiral condensing pipe 43 arranged in the condensing chamber 41, the spiral condensing pipe 43 has a first end and a second end, the first end extends out of the condensing chamber 41 to form an air inlet, and the second end is located inside the condensing chamber 41 to form an air outlet.

[0072] Specifically, the pressurized air passing through the pressurized port of the compressor 2 enters the spiral condensing pipe 43 through the air inlet, and then the pressurized air contacts the pipe wall of the spiral condensing pipe 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 condensing chamber 41 to further dehydrate the pressurized air, thereby increasing the flow path of the pressurized air in the condensing chamber 41 to greatly improve the dehydration effect of the pressurized air and further prolong the service life of the adsorption cartridge 1.

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

[0074] Further, referring to Figure 3 and Figure 4 , the condensing chamber 41 is provided with a flow guide plate 411 located below the spiral condensing pipe 43, the flow guide plate 411 has a central region and an edge region surrounding the central region, the flow guide plate 411 is arranged downwardly inclined from the central region to the edge region, and the flow guide plate 411 divides the condensing chamber 41 in the vertical direction into a first chamber and a second chamber located below the first chamber, and the circumferential sides of the first chamber and the second chamber are in communication with each other.

[0075] Specifically, the liquid flowing out through the condensing pipe drops on the guide plate 411, and then the liquid flows along the inclined direction of the guide plate 411 to the second chamber, so that the liquid is collected in the second chamber, and the collected liquid is isolated from the pressurized air to a certain extent to avoid the situation that the pressurized air flowing out of the condensing chamber 41 carries away the liquid, thereby ensuring the dehydration effect of the pressurized air; and the guide plate 411 is inclined downward from the central area to the edge area, which can accelerate the efficiency of the liquid flowing along the guide plate 411 to the second chamber, so as to further avoid the situation that the pressurized air flowing out of the condensing chamber 41 carries away the liquid, thereby further ensuring the dehydration effect of the pressurized air.

[0076] Further, referring to Figure 5 , the guide plate 411 is provided with a guide rib 412 extending from the central area to the edge area, and the guide rib 412 is arranged in a circumferential direction 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 rib 412 can guide the liquid to further accelerate the speed of the liquid flowing into the second chamber, thereby further avoiding the situation that the pressurized air flowing out of the condensing chamber 41 carries away the liquid, thereby further ensuring the dehydration effect of the pressurized air; at the same time, the guide rib 412 can also increase the structural strength of the guide plate 411 to increase the service life of the guide plate 411.

[0077] Further, 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 since the central area is a plane, the pressurized air is folded back and flows upward under the blocking action of the central area, thereby greatly relieving the situation that the pressurized air diffuses outward at the central area, thereby greatly improving the phenomenon that the pressurized air contacts the liquid, to further ensure the dehydration effect of the pressurized air.

[0078] Further, referring to Figure 4 , the second end is arranged in a vertical direction, so that the opening direction of the air outlet is perpendicular to the central area, 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, referring to Figure 4, the condensing water collecting assembly 4 has an inclined plate 413 located below the flow guide plate 411, the inclined plate 413 extends downward from one end to the liquid outlet 415, so that the liquid flowing into the second cavity can flow to the liquid outlet 415 under the action of the inclined plate 413, so as to avoid the accumulation of liquid in the second cavity, improve the efficiency of supplementing the humidifying cup 3 with liquid, reduce the frequency of supplementing the humidifying cup 3 with liquid, and further improve the user experience; and greatly avoid the generation of odor due to the deterioration of liquid accumulated in the second cavity, thereby greatly improving the cleanliness of the oxygen generator and the user experience.

[0080] The application does not make specific limitations on the fixing method of the flow guide plate 411, preferably, refer to Figure 4 , the inclined plate 413 is provided with a connecting protrusion 414 protruding upward, the connecting protrusion 414 abuts against the bottom of the flow guide plate 411, so as to form a flow gap between the inclined plate 413 and the flow guide plate 411 for the liquid to flow, and the connecting protrusion 414 is provided with a screw threadedly connected to the flow guide plate 411, so as to fix the flow guide plate 411; and since the flow guide plate 411 is fixed by the screw, a hole for the screw to pass through needs to be formed on the inclined plate 413, and the hole for the screw to pass through is arranged on the connecting protrusion 414 by arranging the connecting protrusion 414, so as to raise the position of the hole, avoid the liquid from leaking out through the hole for the screw to pass through, increase the quality of the oxygen generator, and avoid the need to arrange a sealing structure between the inclined plate 413 and the flow guide plate 411, thereby reducing the production cost of the oxygen generator. In other embodiments, the periphery of the flow guide plate 411 is provided with a connecting rib connected to the cavity wall of the condensing chamber 41, so as to fix the flow guide plate 411 by the connecting rib.

[0081] The application does not make specific limitations on the way the liquid in the condensing water collecting assembly 4 enters the humidifying cup 3, preferably, refer to Figure 1 , the condensing water collecting assembly 4 and the humidifying cup 3 are provided with an electromagnetic pump 6, which is used to deliver the liquid in the condensing water collecting assembly 4 to the humidifying cup 3.

[0082] It can be understood that the condensing water collecting assembly 4 and the humidifying cup 3 are communicated through a communication pipeline, and the electromagnetic pump 6 is arranged in the communication pipeline, so that the liquid in the condensing water collecting assembly 4 can be pumped into the humidifying cup 3 under the action of the electromagnetic pump 6, thereby providing power for the flow of the liquid, so that the relative position of the humidifying cup 3 and the condensing water collecting assembly 4 is not limited, thereby achieving 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 can also be arranged below the condensation water collecting assembly 4 to automatically flow the liquid to the humidification cup 3 by gravity, thereby reducing the production cost of the oxygen generator.

[0084] In a preferred embodiment, referring to Figure 1 , the condensation water collecting assembly 4 and the adsorption cylinder 1 are provided with a gas distribution valve 7, so that the pressurized air enters the adsorption cylinder 1 through the gas distribution valve 7.

[0085] In a preferred embodiment, referring to Figure 6 , Figure 7 and Figure 8 , the humidification cup 3 comprises a cup body 31, a cup cover 32, a gas guide pipe 33 and a purification disc 34, the cup body 31 has a humidification cavity inside for containing the liquid, the cup cover 32 can be arranged 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 gas guide pipe 33 is in communication with the oxygen inlet 321 and extends to the lower part of the humidification cavity, and the purification disc 34 is arranged on the cup cover 32. The liquid entering the humidification cup 3 through the liquid inlet 323 is purified by the purification disc 34 and then enters the humidification cavity, thereby realizing the purification of the liquid and ensuring the humidification quality of the oxygen to improve the user experience.

[0086] In a preferred embodiment, referring to Figure 9 , the purification disc 34 comprises an upper shell 341 and a lower shell 342 connected to each other, a containing cavity is formed between the upper shell 341 and the lower shell 342, a purification element 343 is arranged in the containing cavity, the upper shell 341 is provided with a liquid guide hole 345, and the lower shell 342 is provided with a liquid outlet hole, the liquid enters the containing cavity through the liquid guide hole 345 and then enters the humidification cavity through the liquid outlet hole.

[0087] When the liquid produced by the condensation water collecting assembly 4 enters the humidification cup 3, the liquid enters the containing cavity through the liquid inlet 323 and the liquid guide hole 345, and then the purification element 343 in the containing cavity purifies the liquid, and the purified liquid enters the humidification cavity through the liquid outlet hole, thereby realizing the purification of the liquid.

[0088] The structure of the purification element 343 is not limited in the present application, and preferably, the purification element 343 is a structure made of an active antibacterial substance to realize the purification of the liquid. In other embodiments, the purification element 343 can also be a filter element for purifying water quality in the prior art.

[0089] Specifically, the material of the purifying member 343 can be filter cotton, activated carbon, medical stone or biological ball, etc. The filter cotton has good permeability, can filter out flocculation particle impurities in water, improve the transparency of water, and its rough surface can adsorb a large amount of nitrifying bacteria to decompose harmful substances such as ammonia and nitrite in water; the activated carbon has the functions of filtering, purifying water, decolorizing, deodorizing, etc., can effectively remove organic matter, residual chlorine and other radioactive substances in water, and has the effects of decolorizing and removing odor; the medical stone can adsorb nitrifying bacteria, effectively adsorb amino dissolved minerals in water, and has a stabilizing effect on the acid-base value; the biological ball is made of high-grade hydrophilic non-toxic plastic, and has a crisscross internal structure, which can enhance the filtering effect and facilitate the settlement of nitrifying bacteria.

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

[0091] Specifically, the liquid entering the purifying disc 34 through the liquid guide port 345 first falls on the flow uniformizing plate 344 and flows along the flow channel formed between adjacent two flow uniformizing ribs 349. During the flowing process, part of the liquid flows to the lower side of the flow uniformizing plate 344 through the liquid leakage holes 350 and contacts with the purifying member 343, so that the purifying member 343 purifies the liquid. Since the liquid entering the purifying disc 34 first flows along the flow channel and part of the liquid flows to the lower side of the flow uniformizing plate 344 through the liquid leakage holes 350, the liquid can contact with the entire purifying member 343, so that the liquid can more uniformly contact with the purifying member 343, thereby avoiding the situation that the liquid can only flow to a certain position of the purifying member 343 and cause the large loss of the purifying member 343 at the certain position, so that the loss of the purifying member 343 is more uniform, thereby prolonging the service life of the purifying member 343 and ensuring the purifying effect on the liquid. In addition, the liquid leakage holes 350 can also filter the particles mixed in the liquid, so as to further improve the purifying effect on the liquid.

[0092] The shape of the flow uniformizing rib 349 is not limited in the present application, and preferably, referring to Figure 9 and Figure 10Each flow uniformity rib 349 is annular, and each flow uniformity rib 349 is provided with a gap 351, liquid in one of the flow channels flows into the adjacent flow channel through the gap 351, so that the liquid can more uniformly contact the purification element 343, so as to further make the wear of the purification element 343 more uniform, thereby further prolonging the service life of the purification element 343.

[0093] Further, referring to Figure 10 , the gaps 351 of the adjacent flow uniformity ribs 349 are respectively provided on the opposite sides of the flow uniformity plate 344, so that the liquid can more uniformly contact the purification element 343, avoiding the occurrence of flow dead angle in the flow channel, thereby further prolonging the service life of the purification element 343.

[0094] Preferably, the inner part of the upper shell 341 is provided with a rib structure corresponding to the flow uniformity rib 349, and the rib structure is in contact with the flow uniformity rib 349, or the end of the flow uniformity rib 349 away from the flow uniformity plate 344 is in contact with the inner wall of the upper shell 341, so as to increase the flow guiding effect on the liquid.

[0095] In other embodiments, the flow uniformity rib 349 can also be provided with only one and in a spiral shape.

[0096] The application does not make specific limitations on the arrangement of the flow uniformity plate 344, which can adopt any one of the following embodiments:

[0097] Embodiment 1: In this embodiment, the flow uniformity plate 344 is arranged in the accommodating cavity, the purification element 343 is arranged between the flow uniformity plate 344 and the lower shell 342, and the circumferential side of the flow uniformity plate 344 is sealingly connected with the upper shell 341 and / or the lower shell 342, so as to avoid the liquid flowing downward through the gap between the flow uniformity plate 344 and the upper shell 341 or the lower shell 342, thereby improving the flow guiding effect on the liquid, and further improving the purification effect on the liquid.

[0098] Embodiment 2: In this embodiment, referring to Figure 9 , the circumferential side of the flow uniformity plate 344 is provided with a continuous edge extending along the circumference thereof, and the two ends of the edge are sealingly connected with the upper shell 341 and the lower shell 342 respectively, so as to reduce the production difficulty of the purification disc 34.

[0099] It should be noted that the sealing connection mentioned in the above embodiment 1 and embodiment 2 can be realized by ultrasonic heat melting technology, and the flow uniformity plate 411 can also be fixedly connected with the upper shell 341 and the lower shell 342; of course, it can also be realized by other technical means, such as using sealing glue.

[0100] The application does not make specific limitations on the forming method of the liquid guide port 345, preferably, referring to Figure 9The upper shell 341 is provided with a limiting rib 346, the limiting rib 346 surrounds to form a liquid guide opening 345, the cup cover 32 is provided with a liquid guide pipe 352, one end of the liquid guide pipe 352 is communicated with the liquid inlet 323, the other end is communicated with the liquid guide opening 345, thereby increasing the distance between the purification disc 34 and the liquid inlet 323, so as to facilitate the assembly of the purification disc 34, and meanwhile, the communication difficulty between the purification disc 34 and the liquid inlet 323 is reduced. And the communication position of the liquid guide pipe 352 and the liquid guide opening 345 is located outside the upper shell 341, so as to avoid the situation that the liquid guide pipe 352 needs to be extended into the upper shell 341 to affect the smoothness of the liquid flow.

[0101] Preferably, the limiting rib 346 is located at the edge of the upper shell 341, so that the limiting rib 346 is avoided from other structures, so as to facilitate the assembly of the purification disc 34, and meanwhile, the liquid flows from the edge side of the flow guide plate 411 to the center position.

[0102] The application does not make specific limitation on the communication mode of the liquid guide pipe 352 and the liquid inlet 323, preferably, referring to Figure 8 , the liquid guide pipe 352 is integrally formed with the cup cover 32, so as to reduce the number of components required during the assembly of the humidification cup 3, and meanwhile, the communication stability of the liquid guide pipe 352 and the liquid inlet 323 is increased. In other embodiments, the liquid guide pipe 352 can also be provided through the liquid inlet 323, so as to realize the communication of the liquid guide pipe 352 and the liquid inlet 323.

[0103] The application does not make specific limitation on the communication mode of the liquid guide opening 345 and the liquid guide pipe 352, preferably, referring to Figure 8 , the limiting rib 346 is sleeved outside the liquid guide pipe 352, so as to avoid the situation that the connection position of the liquid guide pipe 352 and the limiting rib 346 may accumulate liquid, so as to ensure that more liquid enters the humidification cavity; in addition, the connection of the limiting rib 346 and the liquid guide pipe 352 can also position and assist the fixation of the purification disc 34, so as to increase the stability of the purification disc 34. In other embodiments, the communication of the liquid guide pipe 352 and the liquid guide opening 345 can also be realized by abutting the bottom end of the liquid guide pipe 352 against the top wall of the limiting rib 346, or the liquid guide pipe 352 is communicated with the liquid guide opening 345 through a connecting head.

[0104] In other embodiments, the limiting rib 346 can also be cancelled, and the liquid guide opening 345 is a hole structure formed on the top end face of the upper shell 341.

[0105] The application does not make specific limitation on the forming mode of the liquid outlet, preferably, referring to Figure 9The lower shell 342 is provided with a plurality of liquid outlet holes 348, and the plurality of liquid outlet holes 348 jointly form a liquid outlet. Therefore, the diameter of each liquid outlet hole 348 can be relatively small, so as to increase the residence time of the liquid in the purification disc 34, thereby increasing the contact time between the liquid and the purification component 343, increasing the purification time of the liquid by the purification component 343, and greatly improving the purification effect of the liquid.

[0106] In other embodiments, the liquid outlet can also be a single hole structure arranged at the bottom of the lower shell 342.

[0107] The application does not make specific limitations on the connection mode of the purification disc 34 and the cup cover 32. Preferably, referring to Figure 7 and Figure 8 The purification disc 34 and the cup cover 32 are detachably connected, so that the user can replace the purification disc 34 to ensure the purification effect of the liquid by the humidification cup 3.

[0108] The application does not make specific limitations on the detachable connection mode of the purification disc 34 and the cup cover 32. Preferably, referring to Figure 7 and Figure 8 The cup cover 32 is provided with at least two clamping portions 324, and the top of the purification disc 34 is provided with a matching portion 347 capable of clamping and matching with the clamping portion 324. Therefore, when the purification disc 34 is disassembled, only the clamping and matching of the clamping portion 324 and the matching portion 347 needs to be released, so as to reduce the disassembly difficulty of the purification disc 34 and improve the disassembly efficiency of the purification disc 34.

[0109] The application does not make specific limitations on the structure of the clamping portion 324. Preferably, the clamping portion 324 includes a plurality of elastic arms, and the elastic arms are provided with clamping protrusions for clamping and matching the matching 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 clamping protrusions are located on the inner side of the elastic arms, so as to increase the clamping point of the matching portion 347.

[0111] Specifically, when the purification disc 34 is installed, the purification disc 34 is first aligned with the cup cover 32, and the matching portion 347 is aligned with the clamping portion 324. Then, the pressure of the purification disc 34 towards the cup cover 32 is applied, so that the purification disc 34 moves towards the cup cover 32, and the matching portion 347 abuts against the clamping protrusion. Then, the pressure of the purification disc 34 towards the cup cover 32 is continuously applied, and the matching portion 347 applies an extrusion force to the clamping protrusion to deform outward. Therefore, 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. At this time, the elastic arm restores the deformation under the action of its own elasticity, and finally the clamping protrusion and the matching portion 347 are clamped and matched together, so as to complete the installation of the purification disc 34.

[0112] When the purification disc 34 is disassembled, a pulling force is applied to the purification disc 34 in a direction away from the cup cover 32, so that the fitting part 347 is moved by the purification disc 34, the fitting part 347 applies an outward extrusion force to the clamping protrusion, and then the elastic arm is elastically deformed under the action of the clamping protrusion, so that the fitting part 347 is separated from the clamping protrusion and the clamping cooperation is released, thereby completing the disassembly of the purification disc 34.

[0113] In summary, when the purification disc 34 is disassembled, only a pulling force or a pressure in the direction of the cup cover 32 needs to be applied to the purification disc 34, thereby greatly reducing the difficulty of disassembling the purification disc 34, improving the disassembly effect of the purification disc 34, and greatly improving the replacement efficiency of the purification disc 34.

[0114] Preferably, the fitting part 347 includes a clamping ball and a connecting column arranged at the bottom of the clamping ball, the diameter of the clamping ball is greater than the diameter of the connecting column, and the connecting column is fixedly connected to the top of the upper shell 341.

[0115] In other embodiments, the clamping part 324 can also be provided with only one elastic arm, and a plurality of clamping parts 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 away from or towards the central axis of the upper shell 341, and the fitting part 347 is a clamping rib position capable of clamping cooperation with the clamping protrusion.

[0116] Of course, in addition to the above-mentioned clamping cooperation between the clamping part 324 and the fitting part 347 to achieve the detachable connection between the purification disc 34 and the cup cover 32, other ways can also be used, such as screw connection.

[0117] In a preferred embodiment, referring to Figure 7 and Figure 8 The purification disc 34 is at least partially located outside the cup cover 32, so that the user can hold the part of the purification disc 34 outside the cup cover 32 when disassembling the purification disc 34, thereby achieving the effect of facilitating the disassembly of the purification disc 34.

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

[0119] The application does not make specific limitation to the oxygen outlet mode after humidification. Preferably, the peripheral side of the purification disc 34 is arranged to be spaced from the cavity wall of the humidification cavity, so that a gas passing channel is formed between the peripheral side of the purification disc 34 and the cavity wall of the humidification cavity, and then the oxygen humidified by the liquid flows from the peripheral side of the purification disc 34 to the gas outlet, so as to ensure the smoothness of the oxygen flow in the humidification cavity, and further ensure the oxygen outlet efficiency of the humidification cup 3.

[0120] In other embodiments, a hole structure can also be arranged on the purification disc 34 to pass through the purification disc 34, so that the humidified oxygen flows upward through the hole structure passing through the purification disc 34.

[0121] The application does not make specific limitation to the arrangement of the gas guide pipe 33. Preferably, the gas guide pipe 33 extends to the lower part of the humidification cavity by penetrating the purification disc 34, so that the flow path of the oxygen entering the humidification cavity is more straight, so as to improve the smoothness of the oxygen entering the humidification cavity, and further ensure the oxygen inlet efficiency of the humidification cup 3, and the gas guide pipe 33 can be arranged closer to the central axis of the cup body 31, so as to improve the humidification effect of the oxygen.

[0122] Further, the purification disc 34 is coaxially provided with a central hole, and the bottom end of the gas guide pipe 33 extends to the bottom of the humidification cavity by penetrating the central hole, so as to reduce the disassembly difficulty of the purification disc 34, and improve the disassembly efficiency of the purification disc 34.

[0123] In other embodiments, the gas guide pipe 33 can also be arranged on the side of the purification disc 34, that is, the space between the side of the purification disc 34 and the cup cover 32 is arranged with the gas guide pipe 33, so that the gas guide pipe 33 and the purification disc 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 the pressure relief valve is arranged at the pressure relief port 325, so that when the pressure in the humidification cavity is relatively large, the oxygen in the humidification cavity can be discharged through the pressure relief port 325, so as to keep the pressure in the humidification cavity within a relatively safe range, and further improve the safety of the humidification cup 3.

[0125] The application does not make specific limitation to the connection mode of the cup cover 32 and the cup body 31. Preferably, referring to Figure 7 and Figure 8 , the cup cover 32 and the cup body 31 are threadedly connected, so as to increase the sealing property of the humidification cavity, and at the same time, the effect of facilitating replacement of the purification member 343 can be achieved.

[0126] In other embodiments, the cup cover 32 can also be connected with the cup body 31 in a manner of interference fit.

[0127] The places not mentioned in the application can be realized by using or referring to the existing technology.

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

[0129] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An oxygen generator, characterized in that, include: An adsorption cartridge filled with an adsorbent for adsorbing nitrogen gas; A compressor for supplying pressurized air to the adsorption cylinder; A humidification cup for humidifying oxygen from the adsorption cartridge, and the humidification cup having a liquid inlet; The condensate collection assembly has a drain port, an air inlet connected to the compressor, and an exhaust port connected to the adsorption cylinder. The condensate collection assembly 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 air inlet.

2. An oxygen generator according to claim 1, characterized in that, The condensate collection assembly includes a condensation chamber and a cooling structure disposed in the condensation chamber, the cooling structure being used to cool the condensation chamber.

3. An oxygen generator according to claim 2, characterized in that, The cooling structure includes a semiconductor refrigeration chip, with the cold end of the semiconductor refrigeration chip positioned close to the condensation chamber.

4. An oxygen generator according to claim 3, characterized in that, The cooling structure also includes heat dissipation fins and a cooling fan. The heat dissipation fins are located close to the hot end of the thermoelectric cooler, and the cooling fan is located on the side of the heat dissipation fins away from the thermoelectric cooler.

5. An oxygen generator according to any one of claims 1-4, characterized in that, The condensate collection assembly includes a condensation chamber and a spiral condenser tube disposed in the condensation chamber. The spiral condenser 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 the air outlet.

6. An oxygen generator according to claim 5, characterized in that, The condensation chamber is provided with a guide plate located below the spiral condenser tube. The guide plate has a central region and an edge region surrounding the central region. The guide plate is inclined downward from the central region to the edge region. The guide plate divides the condensation chamber vertically into a first chamber and a second chamber located below the first chamber. The peripheries of the first chamber and the second chamber are interconnected.

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

8. An oxygen generator according to claim 6, characterized in that, The central region is planar, and the second end is positioned opposite to the central region.

9. An oxygen generator according to claim 6, characterized in that, The condensation chamber has an inclined plate located below the guide plate, the inclined plate extending downward from one end to the drain port.

10. An oxygen generator according to any one of claims 1-4, characterized in that, An electromagnetic pump is provided between the condensate collection component and the humidification cup, and the electromagnetic pump is used to transport the liquid in the condensate collection component to the humidification cup.

11. The oxygen generator according to any one of claims 1-4, characterized in that, The humidification cup includes a cup body, a cup lid, an air guide tube, and a purification plate. The cup body has a humidification chamber for holding liquid. The cup lid can cover the cup body and has an oxygen inlet and an oxygen outlet. The liquid inlet is located on the cup lid. The air guide tube communicates with the oxygen inlet and extends to the lower part of the humidification chamber. The purification plate is located on the cup lid. Liquid entering the humidification cup through the liquid inlet is purified by the purification plate before entering the humidification chamber.

12. An oxygen generator according to claim 11, characterized in that, The purification plate includes an upper shell and a lower shell connected to each other, forming a accommodating cavity between the upper shell and the lower shell. A purification component is provided in the accommodating cavity. The upper shell is provided with a liquid guide port, and the lower shell is provided with a liquid outlet. The liquid enters the accommodating cavity through the liquid guide port and enters the humidification cavity through the liquid outlet.

13. An oxygen generator according to claim 12, characterized in that, The accommodating cavity is provided with a flow equalization plate, and the purification component is disposed between the flow equalization plate and the lower shell. The flow equalization plate is provided with a plurality of flow equalization ribs, and a flow channel is formed between two adjacent flow equalization ribs. The flow channel is provided with a plurality of leakage holes.

14. An oxygen generator according to claim 11, characterized in that, The cup lid has at least two snap-fit ​​parts, and the top of the purification plate has a mating part that can snap-fit ​​with the snap-fit ​​parts.

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