呼吸疾病患者因为生活及就医的缘故，经常有外出需求，为防止意外发生，需要随身携带氧气。Patients with respiratory diseases often need to go out due to life and medical treatment. In order to prevent accidents, they need to carry oxygen with them.

目前，呼吸疾病患者外出携带氧气常用的是随身携带氧气瓶，在需要时进行补氧，但是氧气瓶体积较大，携带不方便，因此常常以便携式氧气罐代替。便携式氧气罐虽然携带方便，但其储氧量有限，每罐使用后氧气不可再生，因此每次外出需要携带若干个氧气罐才能满足使用需求，而且氧气罐的价格较高，使用成本较高。At present, patients with respiratory diseases often carry oxygen cylinders with them when they go out to carry oxygen, and supplement oxygen when needed. However, the oxygen cylinders are large in size and inconvenient to carry, so they are often replaced by portable oxygen cylinders. Although portable oxygen tanks are easy to carry, their oxygen storage capacity is limited, and the oxygen cannot be regenerated after each tank is used. Therefore, it is necessary to carry several oxygen tanks to meet the use requirements every time you go out. Moreover, the price of oxygen tanks is relatively high, and the use cost is relatively high.

随着用氧需求的增加，出现了一些便携式制氧机，这些制氧机采用富氧膜分离出空气中氧气，患者急需吸氧时，开启制氧机，富氧膜工作，将分离出的氧气直接输出给患者使用。这种便携式制氧机在患者需要吸氧时，需要患者开启制氧机，通过富氧膜分离出氧气实时输出给患者，无法保证入肺的氧气浓度，吸氧效果较差。As the demand for oxygen increases, some portable oxygen concentrators appear. These oxygen concentrators use oxygen-enriched membranes to separate the oxygen in the air. output directly to the patient. This portable oxygen concentrator requires the patient to turn on the oxygen concentrator when the patient needs to inhale oxygen. The oxygen is separated from the oxygen-enriched membrane and output to the patient in real time. The oxygen concentration in the lungs cannot be guaranteed, and the oxygen inhalation effect is poor.

发明内容Contents of the invention

鉴于以上问题，本发明提供一种制氧机及制氧方法，其能够提高氧气输出效率，改善吸氧效果。In view of the above problems, the present invention provides an oxygen generator and an oxygen generator method, which can increase the oxygen output efficiency and improve the oxygen absorption effect.

本发明的制氧机包括：气源，其从外部吸入空气，用于生成氧气，储氧罐，其上设有压力检测装置，用于检测该储氧罐内氧气的压力，制氧单元，其从所述气源吸入的空气中分离出氧气，并输入到所述储氧罐中，控制单元，其与所述气源和所述压力检测装置连接，根据所述压力检测装置的检测结果控制所述气源的开闭。The oxygen generator of the present invention comprises: a gas source, which sucks in air from the outside for generating oxygen, an oxygen storage tank, on which a pressure detection device is provided for detecting the pressure of oxygen in the oxygen storage tank, an oxygen production unit, It separates oxygen from the air inhaled by the gas source, and inputs it into the oxygen storage tank, and the control unit is connected with the gas source and the pressure detection device, and according to the detection result of the pressure detection device Control the opening and closing of the gas source.

优选地，当所述压力检测装置的检测结果小于预设值时，所述控制单元控制所述气源开启，所述制氧单元开始制氧；当所述压力检测装置的检测结果大于预设值时，所述控制单元控制所述气源关闭，所述制氧单元停止制氧。Preferably, when the detection result of the pressure detection device is less than a preset value, the control unit controls the gas source to be turned on, and the oxygen generating unit starts to produce oxygen; when the detection result of the pressure detection device is greater than a preset value value, the control unit controls the gas source to be closed, and the oxygen generation unit stops oxygen generation.

优选地，制氧单元包括富氧膜以及富氧膜支架，富氧膜安装在富氧膜支架上，对输入的空气中氧气和氮气进行分离，富氧膜支架具有气管连接口，用于输出分离出的氧气。Preferably, the oxygen generating unit includes an oxygen-enriched membrane and an oxygen-enriched membrane support, the oxygen-enriched membrane is installed on the oxygen-enriched membrane support to separate the oxygen and nitrogen in the input air, and the oxygen-enriched membrane support has a trachea connection port for output separated oxygen.

优选地，气源包括第一真空泵和第二真空泵，第一真空泵具有加压进气口和出气口，第二真空泵具有氮气排气口，其将分离出的氮气排出。Preferably, the gas source includes a first vacuum pump and a second vacuum pump, the first vacuum pump has a pressurized air inlet and an air outlet, and the second vacuum pump has a nitrogen exhaust port, which discharges the separated nitrogen.

优选地，本发明的制氧机包括充电电池，其对控制单元和气源供电。Preferably, the oxygen concentrator of the present invention includes a rechargeable battery that powers the control unit and the gas source.

优选地，本发明的制氧机，还包括壳体，包括上壳体、中壳体和下壳体，上壳体与所述中壳体螺纹连接，中壳体与所述下壳体螺纹连接。Preferably, the oxygen concentrator of the present invention also includes a shell, including an upper shell, a middle shell and a lower shell, the upper shell is threadedly connected with the middle shell, and the middle shell is threaded with the lower shell connect.

优选地，气源和充电电池安装在下壳体中，制氧单元安装在中壳体中，储氧罐和控制单元安装在上壳体中，下壳体可整体拆下对充电电池进行充电。Preferably, the gas source and the rechargeable battery are installed in the lower housing, the oxygen generating unit is installed in the middle housing, the oxygen storage tank and the control unit are installed in the upper housing, and the lower housing can be removed as a whole to charge the rechargeable battery.

优选地，第一真空泵的出气口与富氧膜连接，富氧膜支架的气管连接口与储氧罐连接，将所述富氧膜分离出的氧气输入到所述储氧罐中。Preferably, the gas outlet of the first vacuum pump is connected to the oxygen-enriched membrane, the trachea connection port of the oxygen-enriched membrane support is connected to an oxygen storage tank, and the oxygen separated by the oxygen-enriched membrane is input into the oxygen storage tank.

优选地，制氧单元安装在下壳体中，充电电池、控制单元和气源安装在中壳体中，储氧罐安装在上壳体中。Preferably, the oxygen generating unit is installed in the lower casing, the rechargeable battery, the control unit and the gas source are installed in the middle casing, and the oxygen storage tank is installed in the upper casing.

优选地，富氧膜支架的气管连接口与第一真空泵的加压进气口连接，第一真空泵的出气口与储氧罐连接，将所述富氧膜分离出的氧气输入到所述储氧罐中。Preferably, the trachea connection port of the oxygen-enriched membrane support is connected to the pressurized air inlet of the first vacuum pump, the gas outlet of the first vacuum pump is connected to the oxygen storage tank, and the oxygen separated by the oxygen-enriched membrane is input into the storage tank. in the oxygen tank.

优选地，本发明的制氧机还设有吸入面罩，在吸入面罩和储氧罐之间设有控制阀。Preferably, the oxygen generator of the present invention is also provided with an inhalation mask, and a control valve is provided between the inhalation mask and the oxygen storage tank.

优选地，在吸入面罩和控制阀之间设有二氧化碳排气口。Preferably, a carbon dioxide exhaust port is provided between the inhalation mask and the control valve.

优选地，本发明的制氧机还包括过滤单元，对气源吸入的空气进行过滤。Preferably, the oxygen generator of the present invention further includes a filter unit for filtering the air inhaled by the air source.

优选地，壳体上设有LED显示屏，其与控制单元连接，其上可显示电源剩余电量和可充气次数。Preferably, an LED display screen is provided on the housing, which is connected to the control unit, and can display the remaining power of the power supply and the number of times it can be inflated.

本发明的制氧方法包括如下步骤：通过气源吸入外部的空气；将所述气源吸入的空气通过制氧单元分离出氧气；将分离出的氧气输入到储氧罐内；对所述储氧罐内的氧气压力进行检测；根据检测结果控制气源的开闭。The oxygen production method of the present invention comprises the following steps: inhaling external air through an air source; separating the air from the air inhaled by the air source through an oxygen generating unit to obtain oxygen; inputting the separated oxygen into an oxygen storage tank; The oxygen pressure in the oxygen tank is detected; the opening and closing of the gas source is controlled according to the detection result.

根据本发明的制氧机，控制单元根据设在储氧罐上的压力检测装置的检测结果判断储氧罐中的氧气是否充足，并控制气源的开闭，从而启动或停止制氧，即进行间歇式制氧，使储氧罐中始终储存有足够的氧气供患者使用，患者外出时当需要吸氧时可随时吸氧，方便患者使用。According to the oxygen generator of the present invention, the control unit judges whether the oxygen in the oxygen storage tank is sufficient according to the detection result of the pressure detection device arranged on the oxygen storage tank, and controls the opening and closing of the gas source, thereby starting or stopping oxygen production, that is Intermittent oxygen production is carried out so that there is always enough oxygen stored in the oxygen storage tank for the patient to use. When the patient needs to inhale oxygen when going out, the patient can inhale oxygen at any time, which is convenient for the patient.

通过预先存储一部分氧气，在满足患者呼吸气量的前提下，提高入肺的氧气浓度，改善吸氧效果。By pre-storing a part of oxygen, on the premise of meeting the patient's breathing volume, the oxygen concentration in the lungs is increased to improve the oxygen inhalation effect.

附图说明Description of drawings

图1为本发明实施例一的制氧机立体图；Fig. 1 is the three-dimensional view of the oxygen generator of embodiment one of the present invention;

图2为本发明实施例一的制氧机透视立体示意图；Fig. 2 is a perspective schematic diagram of an oxygen generator according to Embodiment 1 of the present invention;

图3为本发明实施例一的制氧机结构分解图；Figure 3 is an exploded view of the structure of the oxygen generator in Embodiment 1 of the present invention;

图4为本发明实施例一的制氧机气路图；Fig. 4 is the gas circuit diagram of the oxygen generator of embodiment one of the present invention;

图5为本发明实施例一的控制电路和充电回路的功能框图；5 is a functional block diagram of a control circuit and a charging circuit according to Embodiment 1 of the present invention;

图6为本发明实施例二的制氧机立体图；Figure 6 is a perspective view of an oxygen generator according to Embodiment 2 of the present invention;

图7为本发明实施例二的制氧机剖视图；Fig. 7 is the sectional view of the oxygen generator of embodiment two of the present invention;

图8为本发明实施例二的制氧机气路图；Fig. 8 is the gas circuit diagram of the oxygen generator of the second embodiment of the present invention;

图9为本发明实施例三的制氧方法的流程图。Fig. 9 is a flow chart of the oxygen production method according to the third embodiment of the present invention.

具体实施方式Detailed ways

以下参照附图，对本发明的制氧机的优选实施方式进行具体说明。以下实施例用于具体说明本发明，并不用于限制本发明的目的。附图中，对于相同的构成要素使用相同的附图标记，省略重复说明。Hereinafter, preferred embodiments of the oxygen generator of the present invention will be specifically described with reference to the accompanying drawings. The following examples are used to specifically illustrate the present invention, but not for the purpose of limiting the present invention. In the drawings, the same reference numerals are used for the same components, and repeated descriptions are omitted.

【实施例一】[Example 1]

图1为本发明实施例一的制氧机1的立体图。Fig. 1 is a perspective view of an oxygen generator 1 according to Embodiment 1 of the present invention.

如图1所示，制氧机1具有壳体16，壳体16上部设有吸入面罩17，患者在需要吸氧时，将吸入面罩罩住口鼻，吸入制氧机1中储存的氧气。使用吸入面罩17，可以避免患者在吸氧时同时吸入环境中的空气，保证吸入的氧气的浓度。As shown in FIG. 1 , the oxygen generator 1 has a housing 16 , and an inhalation mask 17 is provided on the upper part of the housing 16 . Using the inhalation mask 17 can prevent the patient from inhaling the air in the environment while inhaling oxygen, so as to ensure the concentration of inhaled oxygen.

壳体16下部设有过滤单元18，外部空气在被吸入制氧机1内部时，首先经过过滤单元18进行过滤，过滤单元18将空气中的悬浮物和可吸入颗粒物过滤掉，得到较纯净的空气，进入制氧机1内进行制氧。比如，过滤单元18采用HEPA过滤器，其具有滤除PM2.5的效果，同时能够防止灰尘进入制氧机内部，延长制氧机的使用寿命。The lower part of the housing 16 is provided with a filter unit 18. When the external air is sucked into the oxygen generator 1, it is first filtered through the filter unit 18. The filter unit 18 filters out suspended solids and inhalable particles in the air to obtain relatively pure oxygen. Air enters the oxygen generator 1 for oxygen production. For example, the filter unit 18 adopts a HEPA filter, which has the effect of filtering out PM2.5, and can prevent dust from entering the interior of the oxygen generator, prolonging the service life of the oxygen generator.

图2为本发明实施例一的制氧机1的透视立体示意图。FIG. 2 is a perspective schematic diagram of the oxygen generator 1 according to Embodiment 1 of the present invention.

如图2所示，制氧机1还包括充电电池11、气源12、储氧罐13、制氧单元14和控制单元15，以上部件均安装在壳体16内。As shown in FIG. 2 , the oxygen generator 1 also includes a rechargeable battery 11 , a gas source 12 , an oxygen storage tank 13 , an oxygen generator unit 14 and a control unit 15 , all of which are installed in a casing 16 .

壳体16分为上壳体161、中壳体162和下壳体163。上壳体161和中壳体162可拆卸地固定连接，中壳体162和下壳体163可拆卸地固定连接，方便制氧机1内各元件的维修和更换。本实施例中，上壳体161和中壳体162可采用螺纹连接固定，中壳体162和下壳体163也采用螺纹连接固定。上壳体161和中壳体162以及中壳体162和下壳体163之间也可以采用其他可拆卸的方式例如卡扣连接等连接方式。The case 16 is divided into an upper case 161 , a middle case 162 and a lower case 163 . The upper housing 161 and the middle housing 162 are detachably fixedly connected, and the middle housing 162 and the lower housing 163 are detachably fixedly connected, so as to facilitate maintenance and replacement of various components in the oxygen generator 1 . In this embodiment, the upper casing 161 and the middle casing 162 can be fixed by screw connection, and the middle casing 162 and the lower casing 163 can also be fixed by screw connection. Other detachable connection methods such as buckle connection and the like may also be adopted between the upper casing 161 and the middle casing 162 and between the middle casing 162 and the lower casing 163 .

吸入面罩17与上壳体161相连接，方便拆卸更换吸入面罩17。储氧罐13和控制单元15安装在上壳体161中，控制单元15安装在储氧罐13的上方。制氧单元14安装在中壳体162中，充电电池11、过滤单元18和气源12安装在下壳体163中。这样，充电电池11、过滤单元18和气源12可与下壳体163一同拆卸下来，便于对充电电池11进行充电，并可单独拆卸更换过滤单元18。The inhalation mask 17 is connected with the upper housing 161 to facilitate disassembly and replacement of the inhalation mask 17 . The oxygen storage tank 13 and the control unit 15 are installed in the upper housing 161 , and the control unit 15 is installed above the oxygen storage tank 13 . The oxygen generating unit 14 is installed in the middle housing 162 , and the rechargeable battery 11 , the filter unit 18 and the gas source 12 are installed in the lower housing 163 . In this way, the rechargeable battery 11 , the filter unit 18 and the air source 12 can be disassembled together with the lower casing 163 , so as to facilitate charging of the rechargeable battery 11 , and the filter unit 18 can be disassembled and replaced separately.

图3为本发明实施例一的制氧机1的结构分解图。Fig. 3 is an exploded view of the structure of the oxygen generator 1 according to Embodiment 1 of the present invention.

如图3所示，充电电池11分别对控制单元15和气源12供电，气源12从外部吸入空气，该空气经过过滤单元18过滤后，通过气源12传输到制氧单元14中，制氧单元14将生成的氧气输入到储氧罐13中，储氧罐13中的氧气通过吸入面罩17输出给用户。As shown in Figure 3, the rechargeable battery 11 supplies power to the control unit 15 and the air source 12 respectively, and the air source 12 sucks in air from the outside. The oxygen unit 14 inputs the generated oxygen into the oxygen storage tank 13 , and the oxygen in the oxygen storage tank 13 is output to the user through the inhalation mask 17 .

充电电池11、过滤单元18和气源12可与下壳体163一同拆卸下来，便于对充电电池11进行充电，并可单独对过滤单元18拆卸进行更换。The rechargeable battery 11 , the filter unit 18 and the air source 12 can be disassembled together with the lower housing 163 to facilitate charging the rechargeable battery 11 , and the filter unit 18 can be disassembled and replaced separately.

气源12包括至少一个真空泵，用于吸入外部的空气。被气源12吸入的空气首先通过过滤单元18，经过过滤单元18过滤的空气进入气源12。气源12的真空泵具有加压进气口和出气口，从真空泵出气口排出的空气进入到制氧单元14中。The air source 12 includes at least one vacuum pump for sucking in external air. The air sucked by the air source 12 first passes through the filter unit 18 , and the air filtered by the filter unit 18 enters the air source 12 . The vacuum pump of the air source 12 has a pressurized air inlet and an air outlet, and the air discharged from the air outlet of the vacuum pump enters the oxygen generating unit 14 .

本实施例中，气源12包括第一真空泵和第二真空泵，第一真空泵具有加压进气口和出气口，第二真空泵具有氮气排气口。制氧机1工作时，第一真空泵加压，使空气通过过滤单元18，由加压进气口进入到第一真空泵，并由出气口输入到制氧单元14中。制氧单元14将氧气与氮气分离，分离出的氧气输出到储氧罐13中储存。之后第二真空泵工作，通过氮气排气口将制氧单元14分离出的氮气从壳体16中抽出。第一真空泵用于加压，第二真空泵用于排气，提高了气源12的工作效率。第一真空泵与第二真空泵交替工作，其交替工作时间可根据使用情况进行设定。In this embodiment, the gas source 12 includes a first vacuum pump and a second vacuum pump, the first vacuum pump has a pressurized air inlet and an air outlet, and the second vacuum pump has a nitrogen exhaust port. When the oxygen generator 1 is working, the first vacuum pump is pressurized, so that air passes through the filter unit 18, enters the first vacuum pump through the pressurized air inlet, and enters the oxygen generating unit 14 through the air outlet. The oxygen generating unit 14 separates oxygen from nitrogen, and the separated oxygen is output to the oxygen storage tank 13 for storage. Then the second vacuum pump works, and the nitrogen gas separated by the oxygen generating unit 14 is drawn out from the housing 16 through the nitrogen exhaust port. The first vacuum pump is used for pressurization, and the second vacuum pump is used for exhaust, which improves the working efficiency of the air source 12 . The first vacuum pump and the second vacuum pump work alternately, and the alternate working time can be set according to usage conditions.

此外，可以在制氧单元14和储氧罐13之间设置一组止逆阀(未图示)，以防止储氧罐13内的氧气被第二真空泵抽出。In addition, a set of check valves (not shown) may be provided between the oxygen generating unit 14 and the oxygen storage tank 13 to prevent the oxygen in the oxygen storage tank 13 from being sucked out by the second vacuum pump.

气源12也可以只包括一个可正反转的真空泵，当需要制氧时，真空泵正转，外部空气被输入到制氧单元14中。当需要排气时，真空泵反转，通过氮气排气口将制氧单元14分离出的氮气从壳体16中抽出。为防止气体流入不同的气路，可以分别在过滤单元18和气源12之间、气源12和氮气排气口之间以及储氧罐13和制氧单元14之间分别设置一组止逆阀(未图示)。The gas source 12 may also only include a reversible vacuum pump. When oxygen production is required, the vacuum pump rotates forward, and external air is input into the oxygen production unit 14 . When exhaust is required, the vacuum pump is reversed, and the nitrogen gas separated by the oxygen generating unit 14 is extracted from the housing 16 through the nitrogen gas exhaust port. In order to prevent the gas from flowing into different gas paths, a set of anti-return can be set between the filter unit 18 and the gas source 12, between the gas source 12 and the nitrogen exhaust port, and between the oxygen storage tank 13 and the oxygen generating unit 14 valve (not shown).

制氧单元14包括富氧膜141和富氧膜支架142，富氧膜141安装在富氧膜支架142上，富氧膜支架142具有气管连接口143，其与储氧罐进气口132相连。第一真空泵的出气口与富氧膜141相连，富氧膜141对输入的空气进行分离，分离出的氧气通过气管连接口143及储氧罐进气口132进入到储氧罐13中。The oxygen generating unit 14 includes an oxygen-enriched membrane 141 and an oxygen-enriched membrane support 142, the oxygen-enriched membrane 141 is installed on the oxygen-enriched membrane support 142, and the oxygen-enriched membrane support 142 has a trachea connection port 143, which is connected to the oxygen storage tank inlet 132 . The gas outlet of the first vacuum pump is connected with the oxygen-enriched membrane 141 , the oxygen-enriched membrane 141 separates the input air, and the separated oxygen enters the oxygen storage tank 13 through the gas pipe connection port 143 and the oxygen storage tank inlet 132 .

储氧罐13上设有压力检测装置131(见图4)，用于检测储氧罐13内氧气的压力值，判断储氧罐13中的氧气是否充足。控制单元15根据压力检测装置131的检测结果控制气源12的开启和停止。储氧罐出气口133与吸入面罩17相连，在储氧罐出气口133和吸入面罩17之间设有控制阀19，当用户需要吸氧时，打开控制阀19，储氧罐13内的氧气流入到吸入面罩17内供用户使用，当用户使用完毕后，关闭控制阀19，停止储氧罐13中的氧气的输出。此时压力检测装置131检测到储氧罐13中的氧气量不足时，控制单元15控制气源12开启，制氧单元14开始制氧。The oxygen storage tank 13 is provided with a pressure detection device 131 (see FIG. 4 ), which is used to detect the pressure value of oxygen in the oxygen storage tank 13 and judge whether the oxygen in the oxygen storage tank 13 is sufficient. The control unit 15 controls the start and stop of the air source 12 according to the detection result of the pressure detection device 131 . The gas outlet 133 of the oxygen storage tank is connected to the inhalation mask 17, and a control valve 19 is arranged between the gas outlet 133 of the oxygen storage tank and the inhalation mask 17. When the user needs to inhale oxygen, the control valve 19 is opened, and the oxygen in the oxygen storage tank 13 It flows into the inhalation mask 17 for the user to use. After the user finishes using it, the control valve 19 is closed to stop the output of the oxygen in the oxygen storage tank 13. At this time, when the pressure detection device 131 detects that the amount of oxygen in the oxygen storage tank 13 is insufficient, the control unit 15 controls the gas source 12 to be turned on, and the oxygen production unit 14 starts to produce oxygen.

在控制阀19和吸入面罩17之间还设有二氧化碳排气口171(见图4)，本实施例中二氧化碳排气口171设置在上壳体161上，其内部置入排气单向阀，用户在吸氧过程中，呼出的二氧化碳通过二氧化碳排气口171内的单向阀，将呼出的气体排出，避免氧气的二次污染，改善吸氧的效果。A carbon dioxide exhaust port 171 (see Fig. 4) is also provided between the control valve 19 and the inhalation mask 17. In the present embodiment, the carbon dioxide exhaust port 171 is arranged on the upper housing 161, and an exhaust check valve is placed inside it. During the oxygen inhalation process, the exhaled carbon dioxide is discharged through the one-way valve in the carbon dioxide exhaust port 171, so as to avoid the secondary pollution of oxygen and improve the effect of oxygen inhalation.

图4为本发明的实施例一的制氧机1的气路图。Fig. 4 is a gas circuit diagram of the oxygen generator 1 according to the first embodiment of the present invention.

如图4所示，本发明的实施例一的制氧机1包括充电电池11、气源12、储氧罐13、制氧单元14和控制单元15。充电电池11对气源12和控制单元15供电，气源12吸入外部空气输入到制氧单元14中，制氧单元14将气源12吸入的空气进行处理生成氧气，生成的氧气输入到储氧罐13中储存。储氧罐13上设有压力检测装置131对储氧罐13的压力进行检测，当压力检测装置131的检测结果大于预设值时，表示储氧罐13中存储有充足的氧气，控制单元15控制气源12关闭，制氧单元14停止制氧，当压力检测装置131的检测结果小于预设值时，表中储氧罐13中氧气量不足，控制单元15控制气源12开启，制氧单元14开始制氧，并输出到储氧罐13中。As shown in FIG. 4 , the oxygen generator 1 according to the first embodiment of the present invention includes a rechargeable battery 11 , a gas source 12 , an oxygen storage tank 13 , an oxygen generator unit 14 and a control unit 15 . The rechargeable battery 11 supplies power to the air source 12 and the control unit 15. The air source 12 sucks in external air and inputs it into the oxygen generating unit 14. The oxygen generating unit 14 processes the air inhaled by the gas source 12 to generate oxygen, and the generated oxygen is input into the oxygen storage unit. Store in tank 13. The oxygen storage tank 13 is provided with a pressure detection device 131 to detect the pressure of the oxygen storage tank 13. When the detection result of the pressure detection device 131 is greater than the preset value, it means that there is sufficient oxygen stored in the oxygen storage tank 13, and the control unit 15 Control the gas source 12 to close, and the oxygen production unit 14 stops oxygen production. When the detection result of the pressure detection device 131 is less than the preset value, the amount of oxygen in the oxygen storage tank 13 in the table is insufficient, and the control unit 15 controls the gas source 12 to open, and the oxygen production The unit 14 starts producing oxygen and outputs it to the oxygen storage tank 13 .

当患者需要吸氧时，开启控制阀19，预先存储在储氧罐13中的氧气即可直接输出给患者使用。When the patient needs to inhale oxygen, the control valve 19 is opened, and the oxygen pre-stored in the oxygen storage tank 13 can be directly output to the patient for use.

本实施例中，压力检测装置131可以是安装在储氧罐13上的压力传感器，控制单元15根据压力传感器的检测值来控制气源12是否开启。压力传感器的检测到的储氧罐13内的压力大于预设值时，表示储氧罐13中存储有充足的氧气，此时无需制氧，气源12处于关闭状态。当患者需要吸氧时，开启控制阀19，储氧罐13中的氧气直接输出给患者。随着患者使用量的增加，储氧罐13中的氧气量逐渐减少，当压力传感器检测到的储氧罐13中压力小于预设值时，表示储氧罐13中的氧气量不足，此时控制单元15控制气源12开启，将空气吸入到制氧单元13中，制氧单元13开始制氧，当压力传感器检测到的压力再次达到预设值时，控制单元15控制气源12关闭。控制单元15根据压力检测装置131的检测结果控制气源12间歇工作，使储氧罐13中一直存储有足够量的氧气，以供患者在需要时使用。In this embodiment, the pressure detection device 131 may be a pressure sensor installed on the oxygen storage tank 13, and the control unit 15 controls whether the gas source 12 is turned on or not according to the detection value of the pressure sensor. When the pressure in the oxygen storage tank 13 detected by the pressure sensor is greater than the preset value, it means that there is sufficient oxygen stored in the oxygen storage tank 13 , and oxygen production is not needed at this time, and the gas source 12 is in a closed state. When the patient needs to inhale oxygen, the control valve 19 is opened, and the oxygen in the oxygen storage tank 13 is directly output to the patient. Along with the increase of patient usage, the amount of oxygen in the oxygen storage tank 13 gradually decreases, and when the pressure in the oxygen storage tank 13 detected by the pressure sensor is less than the preset value, it means that the oxygen content in the oxygen storage tank 13 is insufficient. The control unit 15 controls the gas source 12 to open, sucks air into the oxygen generating unit 13, and the oxygen generating unit 13 starts to produce oxygen. When the pressure detected by the pressure sensor reaches the preset value again, the control unit 15 controls the gas source 12 to close. The control unit 15 controls the gas source 12 to work intermittently according to the detection result of the pressure detection device 131, so that there is always enough oxygen stored in the oxygen storage tank 13 for use by the patient when needed.

图5为本发明实施例一的控制电路和充电回路的功能框图。FIG. 5 is a functional block diagram of a control circuit and a charging circuit according to Embodiment 1 of the present invention.

如图5所示，外部220v交流电AC通过充电接口c1对充电电池11进行充电，也可以通过电源供给单元c2给控制单元15供电，以便制氧机1在充电电池11电量不足时通过外部220v交流电AC供电使用。充电电池11可以对控制单元15和气源12供电，控制单元15根据压力检测装置131的检测结果通过电动机控制单元c3控制气源12的开闭。控制单元15还可以通过充电电池11的电量检测单元c4判断剩余电量的制氧能力，计算得到剩余的可充气次数。控制电路中还包括复位电路c5、存储器c6和晶振c7。复位电路c5使电路回复起始状态，使制氧机1每次开机前进行自动复位；存储器c6中存储有控制单元15的控制程序以及控制参数；晶振c7给控制单元15处理器提供时钟脉冲。As shown in Figure 5, the external 220v alternating current AC charges the rechargeable battery 11 through the charging interface c1, and can also supply power to the control unit 15 through the power supply unit c2, so that the oxygen generator 1 can pass the external 220v alternating current when the rechargeable battery 11 is insufficient. AC power supply is used. The rechargeable battery 11 can supply power to the control unit 15 and the gas source 12 , and the control unit 15 controls the opening and closing of the gas source 12 through the motor control unit c3 according to the detection result of the pressure detection device 131 . The control unit 15 can also determine the oxygen production capacity of the remaining power through the power detection unit c4 of the rechargeable battery 11, and calculate the remaining number of times that can be inflated. The control circuit also includes a reset circuit c5, a memory c6 and a crystal oscillator c7. The reset circuit c5 makes the circuit return to the initial state, so that the oxygen generator 1 is automatically reset before each boot; the memory c6 stores the control program and control parameters of the control unit 15; the crystal oscillator c7 provides clock pulses to the control unit 15 processor.

在壳体16上设有LED显示屏c8，其与控制单元15连接，可显示充电电池11的剩余电量和控制单元15计算的可充气次数，向用户进行提示，以便用户在充电电池11电量不足时及时进行充电。The housing 16 is provided with an LED display c8, which is connected to the control unit 15 and can display the remaining power of the rechargeable battery 11 and the number of times the rechargeable battery can be inflated calculated by the control unit 15. Timely charging.

如上所述，本实施例中，控制单元15根据储氧罐13上的压力检测装置131的检测结果判断储氧罐13中的氧气是否充足，并控制气源12的开闭，进行制氧并储存氧气，使储氧罐13中始终有足够的氧气供用户使用。As mentioned above, in this embodiment, the control unit 15 judges whether the oxygen in the oxygen storage tank 13 is sufficient according to the detection result of the pressure detection device 131 on the oxygen storage tank 13, and controls the opening and closing of the gas source 12 to generate oxygen and Oxygen is stored so that there is always enough oxygen in the oxygen storage tank 13 for the user to use.

【实施例二】[Example 2]

实施例二与实施例一的工作原理基本相同，都是通过控制单元控制气源的开启和关闭，进行制氧并储存氧气，使储氧罐中始终有足够的氧气供用户使用，其不同之处在于实施例二的气路连接方式与实施例一不同。The working principle of the second embodiment is basically the same as that of the first embodiment. The control unit controls the opening and closing of the gas source to generate oxygen and store oxygen, so that there is always enough oxygen in the oxygen storage tank for the user to use. The difference The connection mode of the gas path in the second embodiment is different from that in the first embodiment.

图6为本发明实施例二的制氧机2的立体图。Fig. 6 is a perspective view of the oxygen generator 2 according to the second embodiment of the present invention.

如图6所示，制氧机2具有壳体26，壳体26上部设有吸入面罩27，患者在需要吸氧时，将吸入面罩罩住口鼻，可充分吸入储氧罐23中的氧气，避免了同时吸入环境中的空气，保证了氧浓度。As shown in Figure 6, the oxygen generator 2 has a housing 26, and the upper part of the housing 26 is provided with an inhalation mask 27. When the patient needs to inhale oxygen, the inhalation mask covers the mouth and nose, and the oxygen in the oxygen storage tank 23 can be fully inhaled. It avoids inhaling the air in the environment at the same time and ensures the oxygen concentration.

壳体26下部设有过滤单元28，从外部吸入的空气首先经过过滤单元28进行过滤，将空气中的悬浮物和可吸入颗粒物过滤掉，得到较纯净的空气，再输入给制氧机2进行制氧。The lower part of the housing 26 is provided with a filter unit 28. The air inhaled from the outside is first filtered through the filter unit 28 to filter out suspended solids and inhalable particles in the air to obtain relatively pure air, which is then input to the oxygen generator 2 for further purification. Oxygen.

图7为本发明实施例二的制氧机2的剖视图。Fig. 7 is a cross-sectional view of the oxygen generator 2 according to the second embodiment of the present invention.

如图7所示，充电电池21、气源22、储氧罐23、制氧单元24和控制单元25均安装在壳体26内。As shown in FIG. 7 , the rechargeable battery 21 , the gas source 22 , the oxygen storage tank 23 , the oxygen generating unit 24 and the control unit 25 are all installed in the casing 26 .

壳体26分为上壳体261、中壳体262和下壳体263。上壳体261和中壳体262可拆卸地固定连接，中壳体262和下壳体263可拆卸地固定连接。本实施例中，上壳体261和中壳体262可采用螺纹连接固定，中壳体262和下壳体263也采用螺纹连接固定。上壳体261和中壳体262以及中壳体262和下壳体263之间也可以采用其他可拆卸的方式例如卡扣连接等连接方式。The case 26 is divided into an upper case 261 , a middle case 262 and a lower case 263 . The upper case 261 is detachably connected to the middle case 262 , and the middle case 262 is detachably connected to the lower case 263 . In this embodiment, the upper casing 261 and the middle casing 262 can be fixed by screw connection, and the middle casing 262 and the lower casing 263 can also be fixed by screw connection. Other detachable connection methods such as buckle connection and the like may also be used between the upper casing 261 and the middle casing 262 and between the middle casing 262 and the lower casing 263 .

吸入面罩27与上壳体261相连接，可进行拆卸更换。储氧罐23安装在上壳体261中，充电电池21、气源22和控制单元25安装在中壳体262中，过滤单元28和制氧单元24安装在下壳体263中。The inhalation mask 27 is connected with the upper casing 261 and can be disassembled and replaced. The oxygen storage tank 23 is installed in the upper casing 261 , the rechargeable battery 21 , the gas source 22 and the control unit 25 are installed in the middle casing 262 , and the filter unit 28 and the oxygen generating unit 24 are installed in the lower casing 263 .

充电电池21分别对控制单元25和气源22供电，安装在中壳体262中，中壳体262的侧壁具有充电接口(未图示)，当充电电池21电量不足时，可将中壳体262整体拆下，便于对充电电池21进行充电。充电电池21、气源22和控制单元25安装在中壳体262中，便于线路的连接，结构紧凑，便于携带。The rechargeable battery 21 supplies power to the control unit 25 and the gas source 22 respectively, and is installed in the middle casing 262. The side wall of the middle casing 262 has a charging interface (not shown). When the rechargeable battery 21 is insufficient, the middle casing The body 262 is disassembled as a whole, which is convenient for charging the rechargeable battery 21 . The rechargeable battery 21, the gas source 22 and the control unit 25 are installed in the middle casing 262, which is convenient for circuit connection, compact in structure and easy to carry.

气源22吸入的空气首先进入过滤单元28过中，经过过滤后的空气直接输入到制氧单元24中，制氧单元24生成的氧气被吸入到气源22中，气源22包括至少一个真空泵，真空泵具有加压进气口和出气口，氧气通过真空泵出气口输出到储氧罐23中，储氧罐23中的氧气通过吸入面罩27输出给用户。The air inhaled by the air source 22 first enters the filter unit 28, and the filtered air is directly input into the oxygen generating unit 24, and the oxygen generated by the oxygen generating unit 24 is sucked into the air source 22, and the air source 22 includes at least one vacuum pump , the vacuum pump has a pressurized air inlet and an air outlet, oxygen is output to the oxygen storage tank 23 through the vacuum pump outlet, and the oxygen in the oxygen storage tank 23 is output to the user through the inhalation mask 27 .

本实施例中，气源22包括第一真空泵和第二真空泵，第一真空泵具有加压进气口和出气口，第二真空泵具有氮气排气口。制氧机2工作时，第一真空泵加压，使空气通过过滤单元28过滤后，输入到制氧单元24中。制氧单元24将氧气与氮气分离，分离出的氧气被吸入第一真空泵中，并由出气口输出到储氧罐23中储存。之后第二真空泵工作，通过氮气排气口将制氧单元24分离出的氮气从壳体26中抽出。In this embodiment, the gas source 22 includes a first vacuum pump and a second vacuum pump, the first vacuum pump has a pressurized air inlet and an air outlet, and the second vacuum pump has a nitrogen exhaust port. When the oxygen generator 2 is working, the first vacuum pump pressurizes the air so that the air is filtered through the filter unit 28 and then input into the oxygen generator unit 24 . The oxygen generating unit 24 separates oxygen from nitrogen, and the separated oxygen is sucked into the first vacuum pump, and output to the oxygen storage tank 23 through the gas outlet for storage. Then the second vacuum pump works, and the nitrogen gas separated by the oxygen generating unit 24 is drawn out from the housing 26 through the nitrogen exhaust port.

储氧罐23上设有压力检测装置231(见图8)，用于检测储氧罐23内的压力值，判断储氧罐23中的氧气是否充足，控制单元25根据压力检测装置231的检测结果控制气源22的开闭。储氧罐出气口与吸入面罩27相连，在储氧罐出气口和吸入面罩17之间设有控制阀(未图示)，当用户需要吸氧时，打开控制阀，储氧罐23内的氧气流入到吸入面罩27内供用户使用，当用户使用完毕后，关闭控制阀，储氧罐23中的氧气不再输出。此时压力检测装置231检测到储氧罐23中的氧气量不足时，控制单元25控制气源开启，制氧单元24开始制氧。The oxygen storage tank 23 is provided with a pressure detection device 231 (see FIG. 8 ), which is used to detect the pressure value in the oxygen storage tank 23 and judge whether the oxygen in the oxygen storage tank 23 is sufficient. As a result, the opening and closing of the gas source 22 is controlled. The air outlet of the oxygen storage tank is connected with the inhalation mask 27, and a control valve (not shown) is arranged between the air outlet of the oxygen storage tank and the inhalation mask 17. When the user needs to inhale oxygen, the control valve is opened, and the air in the oxygen storage tank 23 Oxygen flows into the inhalation mask 27 for the user to use. After the user finishes using it, the control valve is closed, and the oxygen in the oxygen storage tank 23 is no longer output. At this time, when the pressure detection device 231 detects that the amount of oxygen in the oxygen storage tank 23 is insufficient, the control unit 25 controls the gas source to be turned on, and the oxygen generating unit 24 starts to generate oxygen.

在控制阀和吸入面罩27之间还设有二氧化碳排气口271(见图8)，本实施例中二氧化碳排气口271设置在吸入面罩27上，其内部置入排气单向阀，用户在吸氧过程中，呼出的二氧化碳通过二氧化碳排气口271内的单向阀，将呼出的气体排出，避免了氧气的二次污染，改善了吸氧的效果。Between the control valve and the inhalation mask 27, a carbon dioxide exhaust port 271 (see Fig. 8) is also provided. During the oxygen inhalation process, the exhaled carbon dioxide passes through the one-way valve in the carbon dioxide exhaust port 271 to discharge the exhaled gas, avoiding the secondary pollution of oxygen and improving the effect of oxygen inhalation.

图8为本发明的实施例二的制氧机2的气路图。Fig. 8 is a gas circuit diagram of the oxygen generator 2 according to the second embodiment of the present invention.

如图8所示，本发明的实施例二的制氧机2包括充电电池21、气源22、储氧罐23、制氧单元24和控制单元25。充电电池21能够对气源22和控制单元25供电，气源22吸入外部空气输入到制氧单元24中，制氧单元24将气源22吸入的空气进行处理生成氧气，生成的氧气输入到储氧罐23中储存。储氧罐23上设有压力检测装置231对储氧罐23的压力进行检测，当压力检测装置231的检测结果大于预设值时，表示储氧罐23中存储有充足的氧气，控制单元25控制气源22关闭，制氧单元24停止制氧，当压力检测装置231的检测结果小于预设值时，表中储氧罐23中氧气量不足，控制单元25控制气源22开启，制氧单元24开始制氧，并输出到储氧罐23中。As shown in FIG. 8 , the oxygen generator 2 according to the second embodiment of the present invention includes a rechargeable battery 21 , a gas source 22 , an oxygen storage tank 23 , an oxygen generator unit 24 and a control unit 25 . The rechargeable battery 21 can supply power to the air source 22 and the control unit 25. The air source 22 inhales external air and enters it into the oxygen generating unit 24. The oxygen generating unit 24 processes the air inhaled by the air source 22 to generate oxygen, and the generated oxygen is input to the storage Stored in oxygen tank 23. The oxygen storage tank 23 is provided with a pressure detection device 231 to detect the pressure of the oxygen storage tank 23. When the detection result of the pressure detection device 231 is greater than the preset value, it means that there is sufficient oxygen stored in the oxygen storage tank 23, and the control unit 25 Control the gas source 22 to close, and the oxygen production unit 24 stops oxygen production. When the detection result of the pressure detection device 231 is less than the preset value, the amount of oxygen in the oxygen storage tank 23 in the table is insufficient, and the control unit 25 controls the gas source 22 to open, and the oxygen production The unit 24 starts producing oxygen and outputs it to the oxygen storage tank 23 .

当患者需要吸氧时，开启控制阀，预先存储在储氧罐23中的氧气即可直接输出给患者使用。When the patient needs to inhale oxygen, the control valve is opened, and the oxygen stored in the oxygen storage tank 23 can be directly output to the patient for use.

本实施例中，压力检测装置231可以是安装在储氧罐23上的压力传感器，控制单元25根据压力传感器的检测值来控制气源22是否开启。压力传感器的检测到的储氧罐23内的压力大于预设值时，表示储氧罐23中存储有充足的氧气，此时无需制氧，气源22处于关闭状态。当患者需要吸氧时，开启控制阀，储氧罐23中的氧气直接输出给患者。随着患者使用量的增加，储氧罐23中的氧气量逐渐减少，当压力传感器检测到的储氧罐23中压力小于预设值时，表示储氧罐23中的氧气量不足，此时控制单元25控制气源22开启，将空气吸入到制氧单元23中，制氧单元23开始制氧，当压力传感器检测到的压力再次达到预设值时，控制单元25控制气源22关闭。控制单元25根据压力检测装置231的检测结果控制气源22间歇工作，使储氧罐23中一直存储有足够量的氧气，以供患者在需要时使用。In this embodiment, the pressure detection device 231 may be a pressure sensor installed on the oxygen storage tank 23, and the control unit 25 controls whether the gas source 22 is turned on or not according to the detection value of the pressure sensor. When the pressure in the oxygen storage tank 23 detected by the pressure sensor is greater than the preset value, it means that there is sufficient oxygen stored in the oxygen storage tank 23, and oxygen production is not needed at this time, and the gas source 22 is in a closed state. When the patient needs to inhale oxygen, the control valve is opened, and the oxygen in the oxygen storage tank 23 is directly output to the patient. Along with the increase of patient usage, the amount of oxygen in the oxygen storage tank 23 gradually decreases, when the pressure in the oxygen storage tank 23 detected by the pressure sensor is less than the preset value, it means that the oxygen content in the oxygen storage tank 23 is insufficient. The control unit 25 controls the gas source 22 to open, sucks air into the oxygen generating unit 23, and the oxygen generating unit 23 starts to produce oxygen. When the pressure detected by the pressure sensor reaches the preset value again, the control unit 25 controls the gas source 22 to close. The control unit 25 controls the gas source 22 to work intermittently according to the detection result of the pressure detection device 231, so that there is always enough oxygen stored in the oxygen storage tank 23 for use by the patient when needed.

如上所述，本实施例中，控制单元25根据储氧罐23上的压力检测装置231的检测结果判断储氧罐23中的氧气是否充足，并控制气源22的开闭，从而达到间歇制氧，进行制氧并储存氧气，使储氧罐23中始终有足够的氧气供用户使用。As mentioned above, in this embodiment, the control unit 25 judges whether the oxygen in the oxygen storage tank 23 is sufficient according to the detection result of the pressure detection device 231 on the oxygen storage tank 23, and controls the opening and closing of the gas source 22, so as to achieve the intermittent system. Oxygen is produced and stored, so that there is always enough oxygen in the oxygen storage tank 23 for the user to use.

充电电池21、气源22和控制单元25一起安装在中壳体262中，便于线路的连接，结构紧凑，体积小，便于携带。其充电电池21在电量不足时，可根据需要进行充电，或者更换电池，方便了用户外出，提高了便携式制氧机的实用性。The rechargeable battery 21, the gas source 22 and the control unit 25 are installed together in the middle casing 262, which is convenient for connection of lines, compact in structure, small in size and easy to carry. Its rechargeable battery 21 can be charged as required when the power is insufficient, or the battery can be replaced, which facilitates the user to go out and improves the practicability of the portable oxygen generator.

【实施例三】[Embodiment 3]

本发明的实施例三提供一种制氧方法。Embodiment 3 of the present invention provides an oxygen production method.

图9为本发明实施例三的制氧方法流程图。Fig. 9 is a flow chart of the oxygen production method in Example 3 of the present invention.

如图9所示，本发明实施例三的制氧方法包括如下步骤。As shown in FIG. 9 , the oxygen production method according to Embodiment 3 of the present invention includes the following steps.

步骤S1，开启气源，吸入外部空气，并输送至制氧单元；Step S1, turn on the air source, inhale external air, and deliver it to the oxygen generating unit;

本方法中气源可采用以上实施例中的真空泵，将外部的空气吸入到制氧机中。The gas source in this method can use the vacuum pump in the above embodiments to suck the external air into the oxygen generator.

步骤S2，将吸入的空气通过制氧单元分离出氧气；Step S2, separating the inhaled air through the oxygen generating unit to obtain oxygen;

制氧单元采用以上实施例中的富氧膜，将空气中的氧气和氮气进行分离，生成高浓度的氧气。The oxygen-generating unit adopts the oxygen-enriched membrane in the above examples to separate the oxygen and nitrogen in the air to generate high-concentration oxygen.

步骤S3，将分离出的氧气输入到储氧罐中进行储存；Step S3, inputting the separated oxygen into an oxygen storage tank for storage;

储氧罐上设有压力检测装置，用于检测储氧罐中的压力。The oxygen storage tank is provided with a pressure detection device for detecting the pressure in the oxygen storage tank.

步骤S4，将压力检测装置检测的压力值传送给控制单元；Step S4, transmitting the pressure value detected by the pressure detection device to the control unit;

步骤S5，控制单元根据压力检测装置的检测值判断储氧罐中的压力是否大于预设值；Step S5, the control unit determines whether the pressure in the oxygen storage tank is greater than a preset value according to the detection value of the pressure detection device;

该预设值根据储氧罐的容量进行设定，检测值不大于预设值时，控制单元控制气源开启，制氧单元继续制氧。The preset value is set according to the capacity of the oxygen storage tank. When the detected value is not greater than the preset value, the control unit controls the opening of the gas source, and the oxygen generating unit continues to generate oxygen.

步骤S6，当判断的检测值大于预设值时，控制单元控制气源关闭，停止制氧。Step S6, when the determined detection value is greater than the preset value, the control unit controls the gas source to be turned off, and stops oxygen production.

本发明的制氧方法，控制单元根据储氧罐上的压力检测装置的检测结果判断储氧罐中的氧气是否充足，并控制气源的开闭，从而达到间歇制氧，使储氧罐中始终有足够的氧气供患者使用，使患者在外出时可随时吸氧，方便了患者外出。In the oxygen production method of the present invention, the control unit judges whether the oxygen in the oxygen storage tank is sufficient according to the detection result of the pressure detection device on the oxygen storage tank, and controls the opening and closing of the gas source, so as to achieve intermittent oxygen production, so that the oxygen in the oxygen storage tank There is always enough oxygen for the patient to use, so that the patient can inhale oxygen at any time when going out, which is convenient for the patient to go out.

根据本发明以上的实施例的制氧机，用户可以在外出时根据需要随时补氧，且通过富氧膜将空气中的氧气分离并存储，使氧气可再生，患者外出时间不受携带的氧气量的限制，解决了现有技术中外出需要携带若干个氧气瓶才能满足使用需求的问题，成本低廉且便于携带。According to the oxygen concentrator of the above embodiments of the present invention, the user can replenish oxygen at any time when going out, and the oxygen in the air is separated and stored through the oxygen-enriched membrane, so that the oxygen can be regenerated, and the patient is not affected by the oxygen when going out. The limit of quantity solves the problem in the prior art that several oxygen cylinders need to be carried to meet the use requirements when going out, and the cost is low and easy to carry.

根据本发明以上的实施例的制氧机，控制单元根据设在储氧罐上的压力检测装置的检测结果判断储氧罐中的氧气是否充足，并控制气源的开闭，从而启动或停止制氧，即进行间歇式制氧，使储氧罐中始终储存有足够的氧气供患者使用，患者外出时当需要吸氧时可随时吸氧，方便患者使用，解决了现有技术中的便携式制氧机出氧率低，吸氧效果差的问题。According to the oxygen concentrator of the above embodiments of the present invention, the control unit judges whether the oxygen in the oxygen storage tank is sufficient according to the detection result of the pressure detection device installed on the oxygen storage tank, and controls the opening and closing of the gas source, thereby starting or stopping Oxygen production, that is, intermittent oxygen production, so that there is always enough oxygen stored in the oxygen storage tank for the patient to use. When the patient needs to inhale oxygen when going out, the patient can inhale oxygen at any time, which is convenient for the patient to use, and solves the problem of portable The oxygen output rate of the oxygen generator is low and the oxygen absorption effect is poor.

以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.