Portable oxygen generator

Abstract

The embodiment of the utility model provides a portable oxygen generator, the portable oxygen generator comprises a barrel-shaped shell arranged along the axial direction, an oxygen generation part and a compressor located at one axial side of the oxygen generation part are accommodated in the shell, the oxygen generation part comprises an upper end cover, an oxygen generation cavity and a lower end cover which are sequentially connected from top to bottom along the axial direction, gas path channels communicated with the oxygen generation cavity are arranged in the upper end cover and the lower end cover; an oxygen storage part is further contained in the shell, the oxygen storage part is arranged on the radial outer side of the oxygen generation cavity, the oxygen storage part is connected with an air outlet of the upper end cover, and an air outlet of the compressor is connected with an air inlet of the lower end cover. Therefore, each part of the oxygen generator is accommodated by the cylindrical shell, so that the oxygen generator is easy to take, and the upper end cover and the lower end cover are utilized to form the gas path channel, so that the structure of the oxygen generator is more compact, the overall size is further reduced, and the requirements of compactness and easiness in carrying can be met.

Description

Technical Field

[0001] The present application relates to the technical field of oxygen production, and in particular to a portable oxygen generator. Background Art

[0002] Oxygen inhalation can not only relieve the patient's symptoms, but also help healthy people improve their physical functions.

[0003] Traditional oxygen concentrators have the advantages of stable oxygen flow and oxygen supply concentration, but are not easy to transport and carry. Usually people can only breathe oxygen indoors, and they cannot meet people's needs for oxygen breathing at any time when they go out.

[0004] In order to meet people's oxygen needs, portable oxygen concentrators have developed rapidly. Portable oxygen concentrators usually use the principle of pressure swing adsorption (PSA) to separate nitrogen and oxygen in the air in the oxygen concentrator chamber to obtain oxygen-rich gas, and then lead the oxygen-rich gas out of the oxygen concentrator chamber through a pipeline for people to use. It has the advantages of small size, light weight and easy to carry.

[0005] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present application and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present application. Utility Model Content

[0006] The inventors found that the existing portable oxygen concentrators are smaller in size and weight than traditional oxygen concentrators. However, in outdoor activities, people hope to put the oxygen concentrator into a backpack to free their hands. The existing portable oxygen concentrators are large in size and not easy to put into a backpack. In addition, it is not easy to take it out of the backpack when needed. The portability of the oxygen concentrator needs to be further improved.

[0007] In order to solve at least one of the above problems or other similar problems, an embodiment of the present application provides a portable oxygen concentrator to meet the requirements of being compact and easy to carry.

[0008] The portable oxygen concentrator of the embodiment of the present application comprises a cylindrical shell arranged along the axial direction, wherein the shell contains an oxygen concentrator and a compressor located on one axial side of the oxygen concentrator.

[0009] The oxygen production part comprises an upper end cover, an oxygen production chamber and a lower end cover which are sequentially connected from top to bottom along the axial direction, and an air passage communicating with the oxygen production chamber is provided in the upper end cover and the lower end cover;

[0010] The shell also contains an oxygen storage unit, which is arranged radially outside the oxygen production chamber and connected to the air outlet of the upper end cover.

[0011] The air outlet of the compressor is connected to the air inlet of the lower end cover.

[0012] In addition, optionally, the portable oxygen concentrator further includes a control circuit assembly located on the upper side of the upper end cover, the control circuit assembly including a display screen and buttons located on the top of the shell and a control circuit electrically connected to the display screen and the buttons.

[0013] In addition, optionally, the control circuit assembly further includes a sensor group electrically connected to the control circuit and a control valve for controlling the on / off and / or flow of the gas circuit.

[0014] The top of the shell is provided with an oxygen supply nozzle for the user to breathe oxygen.

[0015] The gas outlet of the oxygen storage part is communicated with the oxygen supply nozzle through the sensor group and the control valve.

[0016] In addition, optionally, the upper end cover is provided with a first solenoid valve for controlling the on-off of the gas path between the upper end cover and the oxygen production chamber;

[0017] The lower end cover is provided with a second solenoid valve for controlling the on-off of the gas path between the lower end cover and the oxygen production chamber;

[0018] The first solenoid valve and the second solenoid valve are electrically connected to the control circuit.

[0019] In addition, optionally, the portable oxygen concentrator further includes a power supply located in the shell, and the power supply is located radially outside the oxygen production chamber.

[0020] In addition, optionally, the portable oxygen concentrator further includes a power circuit assembly located in the shell, the power circuit assembly is located on one axial side of the power supply, and the power circuit assembly and the power supply are arranged between the upper end cover and the lower end cover.

[0021] In addition, optionally, the oxygen production chamber is cylindrical, the oxygen storage portion and the power supply are semicircular arc shapes extending along the axial direction, and the oxygen storage portion and the power supply are respectively located on two opposite sides of the oxygen production chamber in the radial direction.

[0022] In addition, optionally, the portable oxygen concentrator further includes a power module that is separately provided from the shell.

[0023] The housing is provided with a power interface electrically connected to the control circuit assembly, and the power module is electrically connected to the control circuit assembly via the power interface.

[0024] In addition, optionally, the outer surface of the shell is provided with a gripping portion for a user to grip.

[0025] In addition, optionally, the air inlet and / or heat dissipation port of the compressor is located on the side and / or bottom of the shell.

[0026] In addition, optionally, the portable oxygen concentrator further includes a fan located in the shell for dissipating heat for the compressor, and the fan is located radially outside the compressor.

[0027] In addition, optionally, the exhaust port of the lower end cover is connected to the interior of the shell.

[0028] In addition, optionally, the oxygen production chamber includes a first molecular sieve cylinder and a second molecular sieve cylinder sleeved on the radial outer side of the first molecular sieve cylinder.

[0029] In addition, optionally, the shell includes a cylindrical first shell and a cylindrical second shell arranged in the axial direction, the oxygen generator is accommodated in the first shell, and the compressor is accommodated in the second shell.

[0030] One of the beneficial effects of the embodiments of the present application is that the various components of the oxygen concentrator are accommodated by the cylindrical shell, making the oxygen concentrator easy to take, and the upper end cover and the lower end cover form an air path, making the structure of the oxygen concentrator more compact, further reducing the overall volume, thereby meeting the needs of being compact and easy to carry.

[0031] With reference to the following description and accompanying drawings, the specific embodiments of the present application are disclosed in detail, indicating the way in which the principles of the present application can be adopted. It should be understood that the embodiments of the present application are not limited in scope. Within the scope of the terms of the appended claims, the embodiments of the present application include many changes, modifications and equivalents.

[0032] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0033] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The elements and features described in one figure or one implementation of the present application embodiment may be combined with the elements and features shown in one or more other figures or implementations. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one implementation.

[0035] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] In the attached picture:

[0037] Figure 1 is a three-dimensional diagram of a portable oxygen concentrator according to an embodiment of the present application;

[0038] Figure 2 yes Figure 1 An exploded view of a portable oxygen concentrator is shown;

[0039] Figure 3 is a three-dimensional diagram of the oxygen production unit of the portable oxygen concentrator according to an embodiment of the present application;

[0040] Figure 4 is a schematic diagram for explaining the oxygen production process of the oxygen production unit of the embodiment of the present application;

[0041] Figure 5 yes Figure 1 A schematic diagram of a portable oxygen concentrator is shown with the casing removed.

[0042] Tag Name

[0043] 1: Portable oxygen concentrator;

[0044] 10: first shell;

[0045] 101: oxygen supply nozzle;

[0046] 110: gripping part;

[0047] 20: second shell;

[0048] 201: heat dissipation port;

[0049] 202: air inlet;

[0050] 203: air inlet;

[0051] 30: oxygen production department;

[0052] 310: upper end cover;

[0053] 310a: air outlet;

[0054] 3101: oxygen outlet channel;

[0055] 3102: oxygen outlet channel;

[0056] 311: first solenoid valve;

[0057] 320: oxygen chamber;

[0058] 321: first molecular sieve cartridge;

[0059] 322: second molecular sieve cartridge;

[0060] 330: lower end cover;

[0061] 330a: air inlet;

[0062] 3301: Intake / exhaust passage;

[0063] 3302: Intake / exhaust channel

[0064] 331: second solenoid valve;

[0065] 40: compressor;

[0066] 410: pressure regulating valve;

[0067] 50: control circuit components;

[0068] 501: display screen;

[0069] 502: button;

[0070] 510: sensor group;

[0071] 520: control valve;

[0072] 60: Power supply;

[0073] 70: power circuit components;

[0074] 80: oxygen storage unit;

[0075] OO: Central axis. DETAILED DESCRIPTION

[0076] With reference to the accompanying drawings, the above and other features of the present application will become apparent through the following description. In the specification and the accompanying drawings, specific embodiments of the present application are specifically disclosed, which show some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the attached claims.

[0077] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements in terms of title, but do not indicate the spatial arrangement or temporal order of these elements, etc., and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0078] In the embodiments of the present application, the singular forms "a", "the", etc. may include plural forms and should be broadly understood as "a kind" or "a type" rather than being limited to the meaning of "one"; in addition, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. In addition, the term "according to" should be understood as "at least in part according to...", and the term "based on" should be understood as "at least in part based on...", unless the context clearly indicates otherwise.

[0079] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0080] The present application embodiment provides a portable oxygen concentrator. Figure 1 is a three-dimensional diagram of a portable oxygen concentrator according to an embodiment of the present application. Figure 2 yes Figure 1 An exploded view of a portable oxygen concentrator is shown.

[0081] like Figure 1 As shown, the portable oxygen concentrator 1 includes a cylindrical shell, for example, a cylindrical first shell 10 and a cylindrical second shell 20, and the first shell 10 and the second shell 20 are arranged in the axial direction. Figure 2 As shown, the first shell 10 contains an oxygen generator 30, and the second shell 20 contains a compressor 40 ( Figure 2 In addition, the housing of the portable oxygen concentrator 1 of the present application is not limited to the separate first housing 10 and the second housing 20, but may also be composed of one housing, which is also applicable to the following embodiments, and will not be repeated below.

[0082] In the embodiment of the present application, the direction along the central axis OO of the shell or the first shell 10 or the direction parallel to the central axis OO is called "axial", the radial direction centered on the central axis OO is called "radial", the direction radially away from the central axis OO is called "radial outside", the direction radially close to the central axis OO is called "radial inside", and the circumferential direction centered on the central axis OO is called "circumferential".

[0083] In addition, in the embodiment of the present application, the first shell 10 and the second shell 20 are coaxially arranged, or it can be said that the first shell 10 and the second shell 20 are coaxial within a certain error range.

[0084] In addition, in the axial direction, the direction from the first shell 10 to the second shell 20 is called "down", and the direction from the second shell 20 to the first shell 10 is called "up". Those skilled in the art should understand that the "up" and "down" described in the embodiments of the present application are only for distinguishing different elements in terms of name, but do not represent the spatial arrangement of these elements.

[0085] Figure 3 It is a three-dimensional diagram of the oxygen generating unit of the portable oxygen concentrator according to an embodiment of the present application.

[0086] like Figure 3 As shown, the oxygen production unit 30 includes an upper end cover 310, an oxygen production chamber 320 and a lower end cover 330 connected in sequence from top to bottom along the axial direction, and an air passage communicating with the oxygen production chamber 320 is provided in the upper end cover 310 and the lower end cover 330 ( Figure 3 Not identified).

[0087] like Figure 2 As shown, the first shell 10 also contains an oxygen storage unit 80, which is arranged radially outside the oxygen production chamber 320, and the oxygen storage unit 80 is connected to the gas outlet 310a (such as Figure 4 As shown) connection, Figure 3 As shown, the air inlet 330a of the lower end cover 330 is connected to the compressor 40 (as shown in FIG. Figure 5 outlet connection as shown).

[0088] Thus, the various components of the oxygen concentrator are accommodated in the cylindrical shell, making the oxygen concentrator easy to pick up, and the upper end cover and the lower end cover form an air path, making the structure of the oxygen concentrator more compact and further reducing the overall volume, thereby meeting the needs of being compact and easy to carry.

[0089] In some embodiments, Figure 2 As shown, the oxygen production chamber 320 may include a first molecular sieve cylinder 321 and a second molecular sieve cylinder 322, and the first molecular sieve cylinder 321 and the second molecular sieve cylinder 322 are filled with adsorbents, such as zeolite, to produce oxygen-rich gas through pressure swing adsorption. In addition, the first molecular sieve cylinder 321 and the second molecular sieve cylinder 322 can be controlled by turning on and off the valve to achieve cyclic oxygen production, thereby achieving continuous oxygen production.

[0090] Figure 4 It is a schematic diagram for explaining the oxygen production process of the oxygen production unit of the embodiment of the present application.

[0091] In some embodiments, Figure 4As shown, the second molecular sieve cartridge 322 can be sleeved on the radially outer side of the first molecular sieve cartridge 321, thereby making the structure of the oxygen production chamber 320 more compact and further reducing the overall volume.

[0092] Combine the following Figure 4 The oxygen production process of the oxygen production unit 30 of the embodiment of the present application is described. In addition, those skilled in the art should understand that the following description is to make the structure of the portable oxygen concentrator of the embodiment of the present application clearer and should not be understood as limiting the implementation of the present application.

[0093] like Figure 4 As shown, the lower end cover 330 can be provided with air inlet / exhaust channels 3301 and 3302 respectively connected to the first molecular sieve cartridge 321 and the second molecular sieve cartridge 322, and three-way valves can be provided in the air inlet / exhaust channels 3301 and 3302. For example, the three channels of the three-way valve provided in the air inlet / exhaust channel 3301 can be respectively connected to the air inlet port 330a (such as Figure 3 As shown in the figure, the air inlet channel of the air inlet / exhaust channel 3301 is connected to the exhaust channel of the air inlet / exhaust channel 3301, and the air inlet port 330a of the lower end cover 330 can be switched to be connected to the air inlet channel of the air inlet / exhaust channel 3301 or to be connected to the exhaust channel of the air inlet / exhaust channel 3301 through the three-way valve. The three channels of the three-way valve arranged in the air inlet / exhaust channel 3302 can be respectively connected to the air inlet port 330a of the lower end cover 330 (as shown in the figure Figure 3 As shown in the figure, the air inlet channel of the air inlet / exhaust channel 3302 is connected to the exhaust channel of the air inlet / exhaust channel 3302, and the air inlet 330a of the lower end cover 330 can be switched to be connected to the air inlet channel of the air inlet / exhaust channel 3302 or to be connected to the exhaust channel of the air inlet / exhaust channel 3302 through the three-way valve. Oxygen outlet channels 3101 and 3102 connected to the first molecular sieve cartridge 321 and the second molecular sieve cartridge 322 can be respectively arranged in the upper end cover 310, and the oxygen outlet channels 3101 and 3102 are connected to the oxygen storage section 80 through the air outlet 310a of the upper end cover 310. In addition, a one-way valve can be arranged at the air outlet 310a of the upper end cover 310, that is, the gas can only flow from the inside of the air outlet 310a to the outside of the air outlet 310a, but cannot flow in the reverse direction, thereby preventing the gas in the oxygen storage section 80 from flowing back into the oxygen production section 30.

[0094] Figure 4 The second molecular sieve cartridge 322 produces oxygen, as shown in FIG. Figure 4 As shown, when the second molecular sieve cartridge 322 produces oxygen, compressed air passes through the air inlet 330a (as shown in FIG. Figure 3As shown in FIG. 1 , the compressed air enters the three-way valve disposed in the air inlet / exhaust channel 3302. At this time, the three-way valve is configured to communicate the air inlet 330a with the air inlet channel of the air inlet / exhaust channel 3302. Thus, the compressed air enters the second molecular sieve cartridge 322 through the air inlet channel. Figure 4 The dotted arrows in the figure show the gas flow direction. After the compressed air is pressurized to a specified threshold in the second molecular sieve cartridge 322, oxygen-rich gas is separated through pressure swing adsorption, and the oxygen-rich gas enters the oxygen outlet channel 3102 in the upper end cover 310, and finally enters the oxygen storage section 80 through the gas outlet 310a of the upper end cover 310 to be stored.

[0095] In addition, a pressure equalization channel and a back-flushing channel communicating with the first molecular sieve cartridge 321 and the second molecular sieve cartridge 322 may be provided in the upper end cover 310 , and the pressure equalization channel and the back-flushing channel are communicated with the oxygen outlet channel.

[0096] During the oxygen production process of the second molecular sieve cartridge 322 , a portion of the oxygen-rich gas generated in the second molecular sieve cartridge 322 can be transported to the first molecular sieve cartridge 321 through the backflush channel to help discharge the residual waste gas (e.g., gas with a low oxygen concentration) in the first molecular sieve cartridge 321 .

[0097] When the second molecular sieve cylinder 322 is finished making oxygen, the high-pressure gas in the second molecular sieve cylinder 322 can be transported to the first molecular sieve cylinder 321 through the pressure equalization channel to increase the air pressure in the first molecular sieve cylinder 321, so that when switching to the first molecular sieve cylinder 321 to make oxygen, the air pressure in the first molecular sieve cylinder 321 can quickly reach the specified threshold. A single-way solenoid valve can be set in the pressure equalization channel, and the single-way solenoid valve is controlled to open briefly at the end of oxygen production in each molecular sieve cylinder, and remain closed when the molecular sieve cylinder makes oxygen. In addition, after the compressed air is pressurized to the specified threshold in the second molecular sieve cylinder 322 or when the second molecular sieve cylinder 322 is finished making oxygen, the three-way valve is set to the air inlet 330a and the exhaust channel of the air inlet / exhaust channel 3302 to discharge the exhaust gas in the second molecular sieve cylinder 322 from the exhaust channel after the oxygen production is completed. In addition, the three-way valve can be a solenoid valve or a mechanical valve, and the embodiment of the present application is not limited to this.

[0098] The oxygen production process of the first molecular sieve cartridge 321 is similar to the oxygen production process of the second molecular sieve cartridge 322 , and will not be described one by one here.

[0099] The structure of the oxygen production chamber in the embodiment of the present application is not limited to this, and other structures may also be adopted, such as a structure of two molecular sieve cartridges in parallel, or a structure of more than three molecular sieve cartridges. The specific implementation method may refer to the relevant technology. In addition, the control method of each valve body may also refer to the relevant technology, and the embodiment of the present application does not limit this.

[0100] Figure 5 yes Figure 1A schematic diagram of a portable oxygen concentrator is shown with the casing removed.

[0101] In some embodiments, Figure 5 As shown, the portable oxygen concentrator 1 also includes a control circuit assembly 50 located on the upper side of the upper end cover 310, and the control circuit assembly 50 includes a first shell 10 ( Figure 5 The display screen 501 and button 502 at the top of the display screen 501 (not marked in the figure), and a control circuit (not marked in the figure) electrically connected to the display screen 501 and the button 502. The control circuit can control the display screen 501 to display corresponding information, and can also receive input information from the button 502. The embodiment of the present application does not limit the circuit structure of the control circuit, and can be designed according to actual needs. In addition, the embodiment of the present application does not limit the structure of the display screen 501 and the button 502. The display screen 501 is, for example, an LCD display screen or a touch screen, and the button 502 can be, for example, a mechanical button or a touch button, etc. For details, please refer to the relevant technology, and the embodiment of the present application does not limit this.

[0102] In some embodiments, Figure 5 As shown, the control circuit assembly 50 further includes a sensor group 510 and a control valve 520, the sensor group 510 and the control valve 520 are electrically connected to the control circuit, and the first housing 10 ( Figure 5 The top of the oxygen supply nozzle 101 for the user to breathe oxygen is provided, and the air outlet of the oxygen storage unit 80 is connected to the oxygen supply nozzle 101 through the sensor group 510 and the control valve 520. The control valve 520 can control the on-off of the air path under the control of the control circuit, and can also control the flow rate of the air path. Figure 5 As shown, the outer side of the gas outlet of the oxygen storage unit 80 can also be connected to a pressure regulating valve 410, and the pressure regulating valve 410 can make the pressure of the oxygen-rich gas output from the oxygen storage unit 80 reach a predetermined range and stabilize the pressure of the gas. Figure 5 As shown in the partially enlarged view in FIG, the air outlet of the pressure regulating valve 410 is connected to the air inlet of the sensor group 510 through an air pipe, and the air outlet of the control valve 520 is connected to the air inlet end of the oxygen supply nozzle 101 through an air pipe, so that the oxygen-rich gas can be transported from the oxygen storage part 80 to the oxygen supply nozzle 101 along the direction of the dotted arrow in the figure for use by the user.

[0103] In an embodiment of the present application, the sensor group 510 may include at least one type of sensor, for example, an oxygen concentration sensor, or a pressure sensor for detecting the user's breathing state. The concentration of the oxygen-rich gas in the oxygen storage unit 80 can be measured by the oxygen concentration sensor, and the oxygen concentration can be displayed on the display screen 501 by the control circuit. The pressure sensor can detect whether the user is breathing. For example, when the user is breathing, the control valve 520 is opened by the control circuit, so that the oxygen-rich gas is delivered to the user side through the oxygen supply nozzle 101. When the user is not breathing, the control valve 520 is closed by the control circuit to avoid wasting gas.

[0104] In some embodiments, Figure 3 As shown, a first solenoid valve 311 for controlling the on-off of the gas path between the upper end cover 310 and the oxygen production chamber 320 can also be provided on the upper end cover 310, and a second solenoid valve 331 for controlling the on-off of the gas path between the lower end cover 330 and the oxygen production chamber 320 can be provided on the lower end cover 330. The first solenoid valve 311 and the second solenoid valve 331 are connected to the control circuit ( Figure 3 The first solenoid valve 311 and the second solenoid valve 331 are electrically connected to each other (not shown), thereby the on-off of the gas path between the oxygen production chamber 320 and the upper end cover 310 and the lower end cover 330 can be controlled by the control circuit. In addition, the first solenoid valve 311 and the second solenoid valve 331 may include at least one solenoid valve, and may also include different types of solenoid valves. The embodiment of the present application does not limit the number and type of the first solenoid valve 311 and the second solenoid valve 331.

[0105] In some embodiments, Figure 2 As shown, the portable oxygen concentrator 1 may further include a power supply 60 located in the first shell 10 , and the power supply 60 is located radially outside the oxygen production chamber 320 .

[0106] like Figure 2 As shown, the portable oxygen concentrator 1 also includes a power circuit assembly 70 located in the first housing 10, the power circuit assembly 70 is located on one axial side of the power supply 60, and the power circuit assembly 70 and the power supply 60 are arranged between the upper end cover 310 and the lower end cover 330. The power circuit assembly 70 includes, for example, a power circuit, etc. In addition, the power circuit assembly 70 may also be electrically connected to the control circuit assembly 50. The embodiment of the present application does not limit the structure of the power circuit assembly, and reference may be made to the relevant art.

[0107] In some embodiments, Figure 2 As shown, the oxygen concentrator 320 is cylindrical, the oxygen storage unit 80 and the power supply 60 are semicircular arcs extending in the axial direction, or in other words, the oxygen storage unit 80 and the power supply 60 are arches or tiles extending in the axial direction, and the oxygen storage unit 80 and the power supply 60 are arranged opposite to each other in the radial direction of the oxygen concentrator 320. Thus, the structure of the portable oxygen concentrator can be made more compact, the volume of the portable oxygen concentrator can be further reduced, and the portability can be improved.

[0108] In addition, the power supply of the portable oxygen concentrator 1 can also be separately provided from the oxygen concentrator body. For example, the portable oxygen concentrator 1 can also include a power module separately provided from the first shell 10 and the second shell 20. A power interface electrically connected to the control circuit assembly 50 is provided on the second shell 20. The power module can be electrically connected to the control circuit assembly 50 through the power interface. In addition, the compressor 40 can be electrically connected to the power circuit assembly 70 or the power module.

[0109] In some embodiments, Figure 1 As shown, the outer surface of the first housing 10 may be provided with a gripping portion 110 for a user to grip. Figure 1 As shown, the gripping portion 110 may be one or more grooves along the circumferential direction, or the gripping portion 110 may be a handle fixed on the outer surface of the first shell 10 , etc., and this embodiment of the present application does not limit this.

[0110] In some embodiments, the air inlet of the compressor 40 may be located on the side or bottom of the second housing 20, and the heat dissipation port of the compressor 40 may also be located on the side or bottom of the second housing 20. Figure 1 As shown, the side of the second housing 20 may include a compressor 40 ( Figure 1 The heat dissipation port 201 may also include a compressor 40 ( Figure 1 In addition, the exhaust port of the lower end cover 330 can be connected to the inside of the second shell 20, so that the exhaust gas discharged from the oxygen production chamber can be discharged to the outside of the oxygen generator through the heat dissipation port 201 of the second shell 20.

[0111] In some embodiments, the portable oxygen concentrator 1 may further include a fan for dissipating heat for the compressor 40, and the fan is located in the second housing 20 and radially outside the compressor 40. Figure 1 As shown, the side of the second shell 20 is provided with an air inlet 203 of the fan, thereby further miniaturizing the oxygen concentrator and improving portability.

[0112] In addition, if Figure 5 As shown, the compressor 40 can be placed longitudinally in the shell, that is, the axial direction of the motor, compression cylinder, etc. of the compressor 40 can be parallel to the axial direction of the shell; however, the embodiment of the present application is not limited to this. For example, the compressor 40 can also be placed transversely in the shell, that is, the axial direction of the motor, compression cylinder, etc. of the compressor 40 is cross-axial or perpendicular to the axial direction of the shell.

[0113] In addition, a vibration reduction device may be provided around the compressor 40 to prevent vibration generated during operation of the compressor 40 from being transmitted to the housing and affecting user experience.

[0114] In addition, the portable oxygen concentrator of the embodiment of the present application may also include other components, for example, a muffler, a nasal oxygen tube, etc. The embodiment of the present application does not limit the specific structure of the portable oxygen concentrator, and it can be designed according to actual needs. The specific structure of other components can refer to the relevant technology.

[0115] According to the portable oxygen concentrator of the embodiment of the present application, the various components of the oxygen concentrator are accommodated by a cylindrical shell, so that the oxygen concentrator is easy to take, and the upper end cover and the lower end cover are used to form an air path, so that the structure of the oxygen concentrator is more compact, and the overall volume is further reduced, thereby meeting the needs of being compact and easy to carry.

[0116] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The portable oxygen concentrator of the embodiment of the present application may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.

Claims

1. A portable oxygen concentrator, characterized in that: The portable oxygen concentrator comprises a cylindrical housing arranged along the axial direction, wherein the housing accommodates an oxygen concentrator and a compressor located on one axial side of the oxygen concentrator. The oxygen production part comprises an upper end cover, an oxygen production chamber and a lower end cover which are sequentially connected from top to bottom along the axial direction, and an air passage communicating with the oxygen production chamber is provided in the upper end cover and the lower end cover; The shell also contains an oxygen storage unit, which is arranged radially outside the oxygen production chamber and connected to the air outlet of the upper end cover. The air outlet of the compressor is connected to the air inlet of the lower end cover.

2. The portable oxygen concentrator according to claim 1, characterized in that: The portable oxygen concentrator also includes a control circuit assembly located on the upper side of the upper end cover, and the control circuit assembly includes a display screen and buttons located on the top of the shell and a control circuit electrically connected to the display screen and the buttons.

3. The portable oxygen concentrator according to claim 2, characterized in that: The control circuit assembly also includes a sensor group electrically connected to the control circuit and a control valve for controlling the on / off and / or flow of the gas circuit. The top of the shell is provided with an oxygen supply nozzle for the user to breathe oxygen. The gas outlet of the oxygen storage part is communicated with the oxygen supply nozzle through the sensor group and the control valve.

4. The portable oxygen concentrator according to claim 2, characterized in that: The upper end cover is provided with a first solenoid valve for controlling the on-off of the gas path between the upper end cover and the oxygen production chamber; The lower end cover is provided with a second solenoid valve for controlling the on-off of the gas path between the lower end cover and the oxygen production chamber; The first solenoid valve and the second solenoid valve are electrically connected to the control circuit.

5. The portable oxygen concentrator according to claim 1, characterized in that: The portable oxygen concentrator further includes a power source located in the shell, and the power source is located radially outside the oxygen concentrating chamber.

6. The portable oxygen concentrator according to claim 5, characterized in that: The portable oxygen concentrator further includes a power circuit assembly located in the housing, the power circuit assembly is located on one axial side of the power supply, and the power circuit assembly and the power supply are arranged between the upper end cover and the lower end cover.

7. The portable oxygen concentrator according to claim 5, characterized in that: The oxygen production chamber is cylindrical, the oxygen storage portion and the power supply are semicircular arcs extending along the axial direction, and the oxygen storage portion and the power supply are respectively located on two opposite sides of the oxygen production chamber in the radial direction.

8. The portable oxygen concentrator according to claim 2, characterized in that: The portable oxygen concentrator further includes a power module which is separately arranged from the housing. The housing is provided with a power interface electrically connected to the control circuit assembly, and the power module is electrically connected to the control circuit assembly via the power interface.

9. The portable oxygen concentrator according to claim 1, characterized in that: The outer surface of the shell is provided with a gripping portion for a user to grip.

10. The portable oxygen concentrator according to claim 1, characterized in that: The air inlet and / or heat dissipation port of the compressor is located on the side and / or bottom of the shell.

11. The portable oxygen concentrator according to claim 1, characterized in that: The portable oxygen concentrator further includes a fan located in the housing for dissipating heat for the compressor, and the fan is located radially outside the compressor.

12. The portable oxygen concentrator according to claim 1, characterized in that: The exhaust port of the lower end cover is communicated with the interior of the shell.

13. The portable oxygen concentrator according to any one of claims 1 to 12, characterized in that: The oxygen production chamber comprises a first molecular sieve cylinder and a second molecular sieve cylinder sleeved on the radial outer side of the first molecular sieve cylinder.

14. The portable oxygen concentrator according to any one of claims 1 to 12, characterized in that: The housing includes a cylindrical first housing and a cylindrical second housing disposed in the axial direction. The oxygen generator is accommodated in the first housing, and the compressor is accommodated in the second housing.

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