CN114031040A

CN114031040A - Oxygen generator

Info

Publication number: CN114031040A
Application number: CN202111289560.XA
Authority: CN
Inventors: 王浩; 孙宝瑞; 于尊; 宋振伟; 徐欣
Original assignee: Shanghai Haier Medical Technology Co ltd; Haier Smart Home Co Ltd
Current assignee: Shanghai Haier Medical Technology Co ltd; Haier Smart Home Co Ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-02-11

Abstract

The invention discloses an oxygen generator, which comprises a host, a power supply module and a main control unit; the host comprises a shell and a core module arranged in the shell, wherein the core module comprises a compressor and a molecular sieve module connected with the compressor; the power supply module is connected with the host and used for supplying power to the host, the power supply module comprises a power supply management unit, a battery and a TEC temperature control unit, and a liquid path on the TEC temperature control unit is communicated with a liquid path in the host; the main control unit is arranged on the host and used for controlling the operation of the TEC temperature control unit. On the basis of ensuring small size and portability, the oxygen generator can well adjust the internal temperature of the oxygen generator, control the temperature in the equipment to be in the best working condition, and improve the working efficiency of the oxygen generator.

Description

Oxygen generator

Technical Field

The invention relates to the technical field of oxygen generation equipment, in particular to an oxygen generator adopting a liquid cooling temperature control technology.

Background

The day and night temperature difference of the plateau area is large, so that personnel working in the plateau area for a long time, especially personnel entering the plateau area from the plateau area are difficult to adapt to an anoxic environment, and plateau reaction can occur to a certain degree. The long-time anoxic environment directly causes the reduction of the human body function, which is extremely unfavorable for the health of people who need to keep training in high altitude areas or exercise with higher intensity for a long time, and at this time, the oxygen generator is needed.

After the plateau area enters winter, the temperature of partial areas, particularly border areas, is low, so that the working efficiency of the oxygen generator is low, meanwhile, water in the air is easy to condense, the normal operation of an air compressor in the oxygen generator is influenced, and the pipeline of an exhaust port is easy to block. The increase of the heat insulation material leads to the increase of the volume of the whole machine and the increase of the weight, and influences the portability of the product.

In addition, the conventional oxygen generator generally adopts a battery for power supply, and the battery endurance capacity is reduced by about 50% in a plateau low-temperature environment, so that the outdoor use requirement cannot be met.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

Disclosure of Invention

Aiming at the problems pointed out in the background technology, the invention provides an oxygen generator which can well adjust the internal temperature of the oxygen generator, control the temperature in equipment to be in the optimal working condition and improve the working efficiency of the oxygen generator on the basis of ensuring the small size and portability of the oxygen generator.

In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:

the present invention provides an oxygen generator, comprising:

the host comprises a shell and a core module arranged in the shell, wherein the core module comprises a compressor and a molecular sieve module connected with the compressor;

the power supply module is connected with the host and used for supplying power to the host, the power supply module comprises a power supply management unit, a battery and a TEC temperature control unit, and a liquid path on the TEC temperature control unit is communicated with a liquid path in the host;

and the main control unit is arranged on the host and controls the TEC temperature control unit to run.

In some embodiments of the present application, the liquid path in the host computer includes locating compressor liquid path on the compressor and locating molecular sieve liquid path on the molecular sieve module, the compressor liquid path with molecular sieve liquid path intercommunication, be equipped with the circulating pump on the liquid path in the host computer.

In some embodiments of the present application, the molecular sieve module comprises an inlet/outlet control valve, an outlet control valve, and a molecular sieve assembly, wherein an inlet of the molecular sieve assembly is connected to the inlet/outlet control valve, and an outlet of the molecular sieve assembly is connected to the outlet control valve;

an air inlet temperature and humidity sensor is arranged at the air inlet end of the air inlet/exhaust control valve, and an air outlet temperature and humidity sensor is arranged at the air outlet end of the air inlet/exhaust control valve;

and the main control unit controls the TEC temperature control unit to operate according to the detection data of the air inlet temperature and humidity sensor and the exhaust temperature and humidity sensor.

In some embodiments of the present application, the casing includes a casing and a base, the base is disposed at an opening of a bottom of the casing, the base is provided with an air inlet cavity and an air outlet cavity, an air inlet end of the air inlet/outlet control valve is communicated with the air inlet cavity, and an air outlet end of the air inlet/outlet control valve is communicated with the air outlet cavity;

the air inlet cavity is internally provided with the air inlet temperature and humidity sensor, and the air outlet cavity is internally provided with the air outlet temperature and humidity sensor.

In some embodiments of the present application, a first graphene aerogel layer is disposed in the air inlet cavity, and the air inlet temperature and humidity sensor detects temperature and humidity of the first graphene aerogel layer;

and a second graphene aerogel layer is arranged in the exhaust cavity, and the exhaust temperature and humidity sensor detects the temperature and humidity of the second graphene aerogel layer.

In some embodiments, the molecular sieve component has at least two, and when one molecular sieve component is in oxygen production operation, the other molecular sieve components which are saturated with adsorption are in exhaust operation.

In some embodiments of the present application, the power module further includes a bottom case, the bottom case encloses an installation cavity with an open upper side, the power management unit and the battery are both disposed in the installation cavity, and the bottom case is connected to the housing;

the TEC temperature control unit is also connected with radiating fins, a radiating fan is arranged at a position close to the radiating fins, radiating holes are formed in the bottom shell, and the radiating fan is opposite to the radiating holes.

In some embodiments of the present application, the power module and the host are detachably connected, the power management unit is provided with a first electrical contact, the host is provided with a second electrical contact, and when the power module is connected with the host, the first electrical contact is in butt joint with the second electrical contact to connect a power supply circuit.

In some embodiments of the present application, the solar cell panel is further included, and is disposed on the host machine, and is configured to charge the battery.

In some embodiments of the present application, when the electric quantity of the battery is lower than a set value and the solar cell panel cannot charge the battery, the oxygen generator enters an energy-saving operation mode, and the TEC temperature control unit stops working.

Compared with the prior art, the invention has the advantages and positive effects that:

this oxygenerator disposes a plurality of detachable power module, still can charge the battery through solar cell panel simultaneously, is showing to provide duration, satisfies the operation requirement in the underdeveloped area of power supply.

This oxygenerator passes through TEC temperature control unit and carries out effective regulation and control to the inside temperature of equipment, makes the temperature control in the equipment at best operating mode, improves oxygenerator's work efficiency.

The shell of this oxygenerator adopts carbon fiber aerogel three-layer composite construction, on the basis of guaranteeing effective support intensity, can also effectively play thermal-insulated, syllable-dividing effect, can not additionally increase complete machine weight and volume, has stronger suitability in the low temperature area.

The airflow channel of the molecular sieve module of the oxygen generator adopts a Tesla valve structure to realize airflow acceleration, the specific flow direction characteristic of the airflow channel of the Tesla valve structure and the unique inhibition effect of the Tesla valve on countercurrent gas are utilized, the turbulence impact at the position of the air outlet of the airflow channel is effectively reduced, the impact of the gas on molecular sieve particles is reduced, less powder is formed, and the molecular sieve pulverization and the molecular sieve pollution in a cavity caused by the impact are effectively inhibited.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of an oxygen generator according to an embodiment;

FIG. 2 is an exploded view of the enclosure of the main frame of the oxygen generator according to the embodiment;

FIG. 3 is a schematic view of the structure of FIG. 2, viewed from the bottom up;

figure 4 is an exploded view of a movement module according to an embodiment;

FIG. 5 is a schematic view of the structure of FIG. 4, viewed from the bottom up;

fig. 6 is an exploded view of a power module according to an embodiment.

Reference numerals:

4-a host;

41-a housing;

411-housing, 4111-mounting port, 4112-sink groove and 4113-mounting post;

412-base, 4121-inlet chamber, 4122-exhaust chamber, 4123-inlet, 4124-exhaust, 4125-liquid path second quick interface, 4126-inlet cover, 4127-exhaust cover;

413-SiO2 aerogel protective layer;

414-touch display screen;

415-a circulation pump;

4161-a first graphene aerogel layer, 4162-a second graphene aerogel layer;

4171-intake air temperature and humidity sensor, 4172-exhaust air temperature and humidity sensor;

42-movement module;

421-a compressor;

422-molecular sieve module, 4221-inlet/exhaust control valve, 4222-outlet control valve, 4223-molecular sieve component;

5-a power supply module;

51-power management unit, 511-indicator light;

52-a battery;

53-TEC temperature control unit, 531-liquid path first fast interface;

54-heat dissipation fins;

55-a radiator fan;

56-bottom shell, 561-baffle, 562-first mounting cavity, 563-second mounting cavity;

6-a main control unit;

7-solar panel.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

The oxygen generator disclosed by the embodiment is a portable oxygen generator with built-in electric energy, and is suitable for plateau areas and other areas with underdeveloped power supply.

Referring to fig. 1 to 6, the oxygen generator mainly includes a main machine 4, a power supply module 5, a main control unit 6, and the like.

The main unit 4 is a main functional module for producing oxygen, and includes a housing 41 and a movement module 42 disposed in the housing 41.

The movement module 42 includes a compressor 421 and a molecular sieve module 422, and the compressor 421 is connected to the molecular sieve module 422. The external air enters the compressor 421, is compressed and then enters the molecular sieve module 422, and the molecular sieve module 422 adsorbs nitrogen, carbon dioxide and other gases in the air, and finally discharges oxygen.

The power module 5 is connected with the host 4 and used for supplying power to the host 4. The power module 5 is disposed at the bottom of the host 4, and includes a power management unit 51, a battery 52, and a TEC temperature control unit 53.

The power management unit 51 implements a full automatic detection of power.

The battery 52 is used for supplying power to the host 4, and the battery 52 is connected to the power management unit 51.

The TEC temperature control unit 53 adjusts the internal temperature of the oxygen generator by heating or cooling, controls the temperature in the equipment to be in the optimal working condition, and improves the working efficiency of the oxygen generator.

The liquid path on the TEC temperature control unit 53 is communicated with the liquid path in the host 4, and when the TEC temperature control unit 53 heats or cools, temperature adjustment is realized by circulation of cooling liquid in the liquid path.

The liquid path in the host 4 includes a compressor liquid path arranged on the compressor 421 and a molecular sieve liquid path arranged on the molecular sieve module 422, the compressor liquid path can be annularly arranged on the peripheral wall of the compressor 421, and the molecular sieve liquid path can be annularly arranged on the peripheral wall of the molecular sieve. The liquid path of the compressor is communicated with the liquid path of the molecular sieve, and a circulating pump 415 is arranged on the liquid path in the host machine.

The cooling liquid heated or cooled by the TEC temperature control unit 53 circulates through the compressor liquid path and the molecular sieve liquid path under the power action of the circulation pump 415, thereby performing a temperature adjustment function on the compressor 421 and the molecular sieve module 422.

The liquid path in the main machine 4 can also comprise a plurality of liquid paths annularly arranged on the inner peripheral wall of the shell, so that the effect of regulating the temperature in the main machine is further improved.

In the structures shown in fig. 1, 4 to 6, the liquid path, the gas path, and other lines and the electric lines are hidden in order to clearly show the internal structural functional components.

The main control unit 6 is disposed on the host 4, and the main control unit 6 controls the TEC temperature control unit 53 according to detection data of various sensors (including a temperature sensor, a humidity sensor, and the like).

[ case ]

Referring to fig. 1, the housing 41 includes an outer shell 411 and a base 412, the outer shell 411 encloses a cavity structure with an open bottom, the base 412 is disposed at the open bottom of the outer shell 411, and the two are fastened and connected up and down to form an installation cavity for installing the compressor 421, the molecular sieve module 422, and the like.

The housing 411 is a three-layer composite structure, and a sandwich structure is formed by an outer layer, a middle layer and an inner layer.

The outer layer is made of carbon fiber prepreg, the thickness of the outer layer can be 0.3-0.7mm, and the outer layer ensures the overall structural strength of the shell 411.

The intermediate level is made by graphite alkene aerogel, and thickness can be 1-1.4mm, because graphite alkene aerogel inside 90% all is the air, has good syllable-dividing, thermal-insulated effect, can effectively block inside and outside heat bridge.

The inlayer is made by carbon fiber prepreg, and thickness can be 0.2-0.5mm, realizes the effective support to shell 411, and isolated graphite alkene aerogel contacts with the inside steam of shell simultaneously, ensures the porosity of sandwich graphite alkene aerogel.

This shell 411 is a carbon fiber and graphene aerogel's composite construction, and the carbon fiber has fine mechanical properties, and graphene aerogel has good syllable-dividing, heat-proof quality, and this shell 411 can effectively prevent outside low temperature transmission to get into the core inside playing the basis of reliable support, guarantees the reliable operation of inside each part.

In some embodiments of this application, still be equipped with in the core and retrieve rubber aerogel, it has good heat conductivity, and outside attached all pipelines, good heat-proof effect is played, avoids the cold air to get into, and the comdenstion water freezes and blocks up the pipeline problem.

The application aerogel material's introduction can avoid carrying out extra increase shell and the processing of making an uproar that falls to the compressor, the effectual complete machine volume that has reduced. Compared with the traditional portable oxygen generator, the volume of the product is reduced by 20 percent, the weight of the product is reduced by about 15 percent, and the endurance time of the product is improved by 25 percent.

In some embodiments of the present application, referring to fig. 2 and fig. 3, a mounting port 4111 is disposed at the top of the housing 411, and a touch display screen 414 is disposed at the mounting port 4111, and can display information such as electric quantity, charging power, endurance, and the like of the battery 52.

And an SiO2 aerogel protection layer 413 is glued on the outer side of the touch display screen 414. The SiO2 aerogel protection layer 413 can effectively realize the heat preservation of the touch display screen 414, block the influence of outside cold air on liquid crystal in the display screen, and prevent the liquid crystal temperature from being too low to normally display. Meanwhile, the SiO2 aerogel adopts an-OR group, so that the aerogel has good hydrophobicity and can effectively ensure outdoor controllability.

The mounting port 4111 is provided with a sunken groove 4112 along the circumferential direction, and the outer ring of the SiO2 aerogel protection layer 413 is arranged in the sunken groove 4112, so that the reliability of the mounting structure is improved.

In some embodiments of the present application, the touch display screen 414 is connected to the main control unit 6, the main control unit 6 is located in a space enclosed by the housing 411, and the main control unit 6 is connected to an inner layer of the housing 411.

Be equipped with a plurality of erection columns 4113 on the inlayer of shell 411, main control unit 6 passes through the screw and is connected with erection column 4113, realizes main control unit 6's fixed mounting.

In some embodiments of this application, the junction of shell 411 and base 412 is sealed through the gasket, and the gasket is made by rubber fiber aerogel, avoids the heat bridge that the fit-up gap leads to, realizes the sealed of complete machine.

In some embodiments of the present application, base 412 is the injection molding, and base 412 is equipped with graphite alkene aerogel layer towards one side of installation cavity, realizes good thermal-insulated, the effect that gives sound insulation.

In some embodiments of the present application, the outer layer of the outer shell 411 is provided with the solar cell panel 7, specifically, the left and right sides of the outer shell 411 are respectively provided with the solar cell panel 7, and the solar cell panel 7 can supply power for the battery 52, so as to improve the endurance time of the oxygen generator.

The host 4 is provided with a light sensor (not shown) for detecting the blocking condition of the solar cell panel 7, and the touch display screen 414 can display the blocking information detected by the light sensor.

If the solar cell panel 7 is shielded, the battery 52 cannot be charged, and at this time, the shielding condition needs to be manually processed, so as to ensure the reliable charging of the battery 52 by the solar cell panel 7.

[ Power supply Module ]

Referring to fig. 6, the power module 5 is a detachable power module.

A plurality of power module 5 can be disposed to an oxygen generator, when a power module 5 electric quantity is not enough, can dismantle and charge to change the sufficient power module 5 of another electric quantity simultaneously, improve the duration of a journey of oxygen generator.

The power module 5 includes a bottom shell 56, and the power management unit 51, the battery 52, and the TEC temperature control unit 53 are all disposed in an installation cavity surrounded by the bottom shell 56.

The top of the bottom shell 56 is open, the power management unit 51 is disposed at the open of the bottom shell 56 and plugs the installation cavity of the bottom shell 56, and the power management unit 51 is provided with a first electrical contact (not labeled).

When the power supply module 5 is connected with the main machine 4 of the oxygen generator, the first electric contact is butted with a second electric contact (not shown) on the main machine to connect a power supply circuit, so that power supply is realized.

The first electric contact and the second electric contact can specifically select an elastic contact and a golden finger structure in the prior art to realize the quick connection of a circuit.

In some embodiments of the present application, the power module 5 can still work independently after being detached from the host 7, so as to ensure the security of the module.

In some embodiments of the present application, the power management unit 51 is provided with a plurality of indicator lights 511 for displaying the power of the battery, for example, 5 indicator lights, which respectively represent that the remaining power of the battery 52 is 0%, 25%, 50%, 75%, and 100%.

When the power supply module is not installed on the host machine, the corresponding indicator light is turned on to display the remaining capacity of the battery.

The power management unit 51 is also provided with a red light, and if the electric quantity is too low, the red light is turned on to remind the user to charge the battery.

The mode of operation of the battery 52 in combination with the solar panel 7 is as follows:

the power module 5 is installed on the host 4, the power supply circuit is connected, when the power management unit 51 detects that the electric quantity of the battery 52 is lower than a first set value (for example, 40%), the power management unit 51 transmits the monitoring data to the main control unit 6, the main control unit 6 sends a charging instruction, the solar cell panel 7 charges the battery 52, and meanwhile, the charging prompt is displayed on the touch display screen 414. In this process, the power management unit 51 monitors the charging power and displays it on the touch screen 414 until the battery 52 is fully charged.

If the solar panel 7 cannot supply power, the main control unit 6 determines whether the solar panel 7 is shielded according to the monitoring data of the power management unit 51 and by combining the light sensor at the solar panel 7, and displays a shielding warning on the touch display screen 414.

If the solar cell panel 7 is shielded or damaged, the oxygen generator is switched to the energy-saving mode to operate, and the circulating pump 415 and the TEC temperature control unit 53 stop working.

When the power of the battery 52 is lower than a second set value (for example, 20%), the device issues a buzzer alarm to prompt the user to replace the power module 5 with enough power in time, and the touch display screen 414 displays the endurance time of the device.

[ TEC temperature control Unit ]

Referring to fig. 6, the TEC temperature control unit 53 is provided with two first liquid path quick interfaces 531 (including two, which are respectively a cooling liquid inlet and a cooling liquid outlet), and when the power module 5 is connected to the main unit 4 of the oxygen generator, the first liquid path quick interfaces 531 are in butt joint communication with the second liquid path quick interfaces 4125 (including two, which are respectively a cooling liquid inlet and a cooling liquid outlet) on the main unit of the oxygen generator, so as to implement conduction of a cooling liquid circulation flow path.

In some embodiments of the present application, the first quick connector 531 of the fluid path is a spring retractable quick connector structure, and the head portion thereof is a high elastic sealing ring; the inner layer of the liquid path second quick connector 4125 is provided with 2 layers of O-shaped sealing rings and a self-sealing cover, so that the sealing in the inserting process of the O-shaped sealing rings and the self-sealing cover is realized, and meanwhile, the coolant in the host pipeline is prevented from flowing out in the detaching process.

In some embodiments of the present application, the TEC temperature control unit 53 is further connected to a heat dissipation fin 54, a heat dissipation fan 55 is disposed near the heat dissipation fin 54, a heat dissipation hole is disposed on the bottom case 56, and the heat dissipation fan 55 faces the heat dissipation hole.

When the TEC temperature control unit 53 heats, the semiconductor is switched to a heating state to heat the cooling liquid in the liquid path, and the temperature sensor therein monitors the heating temperature in real time to avoid overheating of the module. The circulation pump 415 is started to circulate the liquid heated by the TEC temperature control unit 53, and the heated liquid enters the main machine through the liquid path to heat the whole machine.

At this time, the heat dissipation fins 54 and the heat dissipation fan 55 are timely turned on according to the temperature data to regulate the temperature of the whole machine, and when the temperature data is recovered to be normal, the TEC temperature control unit 53 stops working.

When the TEC temperature control unit 53 is refrigerating, the semiconductor is switched to a refrigerating state to cool the cooling liquid in the liquid path, the circulating pump 415 is started to circulate the liquid refrigerated by the TEC temperature control unit 53, and the cooling liquid enters the inside of the host machine through the liquid path to cool the whole machine.

At this time, the heat dissipation fan 55 operates at full power to discharge the heat dissipated by the heat dissipation fins 54, thereby realizing the regulation and control of the temperature of all the devices of the whole machine.

In some embodiments of the present application, the TEC temperature control unit 53 selects different types of cooling liquids according to different ambient temperatures of the oxygen generator, and the heat conduction efficiency and the freezing point of the cooling liquids are different.

In some embodiments of the present application, a partition 561 is disposed in the bottom case 56, the partition 561 divides the mounting cavity of the bottom case into a first mounting cavity 562 and a second mounting cavity 563 which are disposed on the left and right, the battery 52 and the TEC temperature control unit 53 are disposed in the first mounting cavity 562, the heat dissipation fin 54 and the heat dissipation fan 55 are disposed in the second mounting cavity 563, and the partition structure facilitates the mounting and management of the components.

[ molecular Sieve Module ]

Referring to fig. 4 and 5, molecular sieve module 422 includes an intake/exhaust control valve 4221, an exhaust control valve 4222, and a molecular sieve assembly 4223, with an intake port of molecular sieve assembly 4223 connected to intake/exhaust control valve 4221, and an exhaust port of molecular sieve assembly 4223 connected to exhaust control valve 4222.

An intake temperature and humidity sensor 4171 is provided at an intake end of the intake/exhaust control valve 4221, and an exhaust temperature and humidity sensor 4172 is provided at an exhaust end of the intake/exhaust control valve 4221.

The main control unit 6 controls the operation of the TEC temperature control unit 53 according to the detection data of the intake temperature and humidity sensor 4171 and the exhaust temperature and humidity sensor 4172, thereby realizing effective control of the internal temperature of the device.

Further, the base 412 is provided with an air inlet chamber 4121 and an air outlet chamber 4122, the air inlet chamber 4121 side is provided with an air inlet cover 4126, and the air outlet chamber 4122 side is provided with an air outlet cover 4127. The intake end of the intake/exhaust control valve 4221 communicates with the intake chamber 4121, and the exhaust end of the intake/exhaust control valve 4221 communicates with the exhaust chamber 4122.

An intake temperature and humidity sensor 4171 is arranged in the intake chamber 4121, and an exhaust temperature and humidity sensor 4172 is arranged in the exhaust chamber 4122.

The molecular sieve component 4223 has at least two molecular sieve components, which are defined as a first molecular sieve component and a second molecular sieve component, respectively, in this example, wherein one molecular sieve component performs oxygen generation operation, and the other molecular sieve component performs exhaust operation.

The specific working process is as follows: when the equipment is started, the main control unit 6 sends a self-checking instruction, and a temperature and humidity sensor, a pressure and oxygen concentration sensor arranged in a valve, an external light sensor and the like in the equipment start to detect the state of the whole machine;

if all the sensors of the device are normal, the compressor 421 is started, the air inlet temperature and humidity sensor 4171 monitors the temperature and humidity of air, outside air enters the air inlet cavity 4121 through the air inlet of the whole device, then enters the compressor 421 through the air inlet 4123 and the pipeline to compress the air, the compressed air enters the air inlet/exhaust control valve 4221 through the pipeline, the compressed air passes through the first molecular sieve component, the molecular sieve in the first molecular sieve component adsorbs nitrogen, carbon dioxide and other gases in the air, oxygen enters the oxygen outlet control valve 4222, the oxygen concentration sensor arranged in the oxygen inlet/exhaust control valve monitors the oxygen concentration, data are displayed on the touch display screen 414 in real time, and the oxygen is finally exhausted from the air outlet of the whole device through the air outlet pipeline.

After the first molecular sieve assembly is saturated by adsorption, the air inlet/outlet control valve 4221 switches the air inlet of the compressed air to the second molecular sieve assembly, oxygen is generated by the second molecular sieve assembly, and simultaneously, the air inlet of the first molecular sieve assembly is switched to the air outlet by the air inlet/outlet control valve 4221, and at the moment, the gas such as nitrogen, carbon dioxide and the like in the first molecular sieve assembly is exhausted from the air outlet 4124.

The oxygen generation efficiency and the oxygen generation continuity of the oxygen generator can be greatly improved by alternately using the plurality of molecular sieve assemblies 4223.

In some embodiments of the present application, a first graphene aerogel layer 4161 is disposed in the air intake cavity 4121, and the air intake temperature and humidity sensor 4171 detects the temperature and humidity of the first graphene aerogel layer 4161.

After the outside air enters the air inlet cavity 4121, the outside air is filtered through the first graphene aerogel layer 4161 and then enters the compressor 421, and the first graphene aerogel layer 4161 can effectively absorb moisture in the outside air while filtering the air, so that the cleanliness of the air is ensured.

A second graphene aerogel layer 4162 is arranged in the exhaust cavity 4122, and the exhaust temperature and humidity sensor 4172 detects the temperature and humidity of the second graphene aerogel layer 4162.

Gases such as nitrogen and carbon dioxide discharged from the molecular sieve assembly 4223 are filtered by the second graphene aerogel layer 4162, absorb water, and then discharged.

[ control method of oxygen generator ]

The control method of the oxygen generator in the embodiment mainly refers to the control of the internal temperature, and aims to control the temperature in the equipment to be in the optimal working condition and improve the working efficiency of the oxygen generator.

The method specifically comprises the following steps: the main control unit 6 controls the TEC temperature control unit 53 to operate in a heating mode or a cooling mode according to the inlet air temperature and humidity of the molecular sieve module 422 and/or the exhaust air temperature and humidity of the exhaust gas and/or the outlet oxygen temperature and humidity, and/or the operating temperature of the battery 52 and/or the operating temperature of the compressor 421;

when the TEC temperature control unit 53 operates in the heating mode, the compressor 421 operates at low power and enters the protection mode, thereby ensuring the minimum oxygen generation efficiency.

When the temperature of the exhaust gas outlet end of the molecular sieve module 422 is lower than a first temperature threshold (for example, 0 ℃), the main control unit 6 sends out an icing alarm and controls the TEC temperature control unit 53 to operate in a heating mode, so as to heat the whole machine.

Further, when the humidity of the second graphene aerogel layer 4162 reaches a first humidity threshold (for example, 80%), the main control unit 6 issues a prompt to replace the second graphene aerogel layer;

the temperature at the exhaust end of the molecular sieve module 422 is the temperature at which the second graphene aerogel layer 4162 is monitored.

In some embodiments of the present application, during operation of the oxygen generator, when the temperature of the inlet end of the molecular sieve module 422 is lower than a second temperature threshold (e.g., -5 ℃) and the humidity is increased at a certain increase rate (e.g., 1% increase within 5 min),

or, the temperature of the oxygen outlet end of the molecular sieve module 422 is lower than a third temperature threshold (e.g. 5 c),

alternatively, when the operating temperature of the battery 52 is below a fourth temperature threshold (e.g., 15 c),

under the above-mentioned operating mode, main control unit 6 control TEC temperature control unit 53 is with the mode operation that heats, heats the coolant liquid of inside, and inside temperature control sensor real-time supervision heating temperature. Meanwhile, the compressor 421 is switched to a protection state, so that oxygen supply with the lowest power consumption is ensured, and equipment damage caused by pipeline blockage or internal condensation is avoided.

In some embodiments of the present application, the main control unit controls the TEC unit 53 to operate in the cooling mode when an overheat condition of the compressor 421 and/or the battery 52 is detected.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An oxygen generator, comprising:

2. The oxygen generator according to claim 1,

the liquid path in the host comprises a compressor liquid path arranged on the compressor and a molecular sieve liquid path arranged on the molecular sieve module, the compressor liquid path is communicated with the molecular sieve liquid path, and a circulating pump is arranged on the liquid path in the host.

3. The oxygen generator according to claim 1,

the molecular sieve module comprises an air inlet/outlet control valve, an air outlet control valve and a molecular sieve assembly, wherein an air inlet of the molecular sieve assembly is connected with the air inlet/outlet control valve, and an air outlet of the molecular sieve assembly is connected with the air outlet control valve;

4. The oxygen generator according to claim 3,

the shell comprises a shell and a base, the base is arranged at an opening at the bottom of the shell, an air inlet cavity and an air outlet cavity are arranged on the base, an air inlet end of the air inlet/exhaust control valve is communicated with the air inlet cavity, and an air outlet end of the air inlet/exhaust control valve is communicated with the air outlet cavity;

5. The oxygen generator according to claim 4,

a first graphene aerogel layer is arranged in the air inlet cavity, and the air inlet temperature and humidity sensor detects the temperature and humidity of the first graphene aerogel layer;

6. The oxygen generator according to claim 3,

the molecular sieve component has at least two, and when one of them molecular sieve component carries out oxygen production work, other molecular sieve components that have adsorbed saturation carry out exhaust work.

7. The oxygen generator according to any one of claims 1 to 6,

the power supply module further comprises a bottom shell, the bottom shell is surrounded into an installation cavity with an opened upper side, the power supply management unit and the battery are arranged in the installation cavity, and the bottom shell is connected with the shell;

8. The oxygen generator according to claim 7,

the power module is detachably connected with the host, a first electric contact is arranged on the power management unit, a second electric contact is arranged on the host, and when the power module is connected with the host, the first electric contact is in butt joint with the second electric contact to connect a power supply circuit.

9. The oxygen generator according to any one of claims 1 to 6,

the solar charging system further comprises a solar cell panel arranged on the host machine and used for charging the battery.

10. The oxygen generator according to claim 9,

when the electric quantity of the battery is lower than a set value and the battery cannot be charged by the solar panel, the oxygen generator enters an energy-saving operation mode, and the TEC temperature control unit stops working.