An oxygen concentrator
By employing dual-mode oxygen supply, environmentally adaptive flow regulation, and intelligent switching design, this device solves the problems of single oxygen supply, poor environmental adaptability, and inadequate battery management found in portable oxygen concentrators. It achieves precise, efficient, and safe personalized oxygen supply, making it suitable for various scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 北京空航航空科技有限公司
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-03
AI Technical Summary
Existing portable oxygen concentrators have limited oxygen supply modes, a limited flow adjustment range, poor environmental adaptability, lack of intelligent control and safety protection, imperfect battery management, and difficulty in adapting to diverse power supply needs. They also pose a risk of insufficient or excessive oxygen therapy and are easily exposed in special environments.
It features dual-mode oxygen supply (continuous and pulsed oxygen supply), environmentally adaptive flow regulation, intelligent mode switching, silent design, safe battery management, and multi-power adaptability, including 3 levels of continuous oxygen supply and 6 levels of pulsed oxygen supply, adjustable trigger sensitivity, ambient temperature compensation, intelligent modules, and multiple power interfaces.
It achieves personalized, precise, efficient, and safe oxygen supply, adapts to different environmental needs, avoids insufficient or excessive oxygen supply, ensures battery safety, operates silently, and expands application scenarios.
Smart Images
Figure CN224442566U_ABST
Abstract
Description
Technical Field
[0001] This document relates to the field of oxygen generating equipment technology, and in particular to an oxygen generator. Background Technology
[0002] Currently, portable oxygen generators are widely used in various scenarios such as medical treatment, high-altitude operations, military operations, and emergency rescue. These devices typically employ pressure swing adsorption (PSA) technology, which uses a compressor to compress ambient air and then feeds it into a molecular sieve tower. By utilizing the selective adsorption properties of the molecular sieve for nitrogen, oxygen and nitrogen are separated, thereby outputting oxygen-enriched gas for patients.
[0003] However, existing portable oxygen concentrators still have many shortcomings in practical applications:
[0004] First, regarding oxygen supply modes, traditional devices mostly employ a single continuous oxygen supply mode with limited flow adjustment range, making it difficult to meet the personalized needs of different patients or in different usage scenarios. Second, in terms of flow control, existing devices typically do not consider the impact of ambient temperature on the gas exchange efficiency of the patient's lungs, leading to discrepancies between actual oxygen supply and patient needs in extreme high or low temperatures, potentially resulting in insufficient or excessive oxygen therapy. Third, regarding intelligent control and safety, existing devices generally lack automatic switching mechanisms for oxygen supply modes. Furthermore, in special environments such as military operations, the device's audible and visual alarms may reveal the user's location, but existing devices usually cannot disable these alarm functions. Regarding battery management, the battery systems of traditional portable oxygen concentrators often lack comprehensive charge and discharge protection mechanisms, making them prone to overcharging, over-discharging, or high-temperature operation, which not only affects battery life but may also lead to safety accidents. Finally, in terms of power adaptability, existing devices typically only support a single type of power input, making it difficult to adapt to the diverse power supply requirements of special scenarios such as military and aviation, limiting the expansion of their application scenarios.
[0005] In summary, existing portable oxygen generation technologies still have significant shortcomings in terms of oxygen supply mode diversity, precise flow control, intelligent safety protection, battery management, and power adaptability. There is an urgent need for an oxygen generator that can overcome these problems. Utility Model Content
[0006] This specification provides one or more embodiments of an oxygen concentrator, including an air inlet cover, a fiberglass sleeve, a PCB board assembly, a compressor assembly, a brushless motor, a cooling fan, an ATF assembly, and a battery bridge port wiring harness assembly. The air inlet cover protects the air inlet and guides air into the oxygen concentrator. The fiberglass sleeve protects, insulates, and supports the internal components of the oxygen concentrator. The PCB board assembly monitors, controls, and adjusts the operating parameters of the oxygen concentrator. The compressor assembly compresses the incoming air under the drive of the brushless motor. The brushless motor provides power to the compressor assembly. The cooling fan dissipates heat from components that generate heat during the operation of the oxygen concentrator. The ATF assembly consists of five molecular sieve adsorption towers, which are used in a time-sharing manner to perform high-pressure adsorption and low-pressure desorption of nitrogen in the input compressed air to achieve continuous oxygen production. The battery bridge port wiring harness assembly connects the battery to the various electrical components of the oxygen concentrator.
[0007] Furthermore, the PCB board assembly is specifically used to adjust the oxygen supply mode, which includes a continuous oxygen supply mode and a pulse oxygen supply mode. In the continuous oxygen supply mode, the flow rate is divided into 3 levels: 1 LPM ± 0.2 LPM, 2 LPM ± 0.2 LPM, and 3 LPM ± 0.2 LPM. In the pulse oxygen supply mode, the flow rate is divided into 6 levels: 16 mL, 32 mL, 48 mL, 64 mL, 80 mL, and 96 mL. The pulse oxygen supply mode is triggered by the patient's inhalation.
[0008] Furthermore, in the pulse oxygen supply mode, the oxygen generator is equipped with three levels of adjustable trigger sensitivity, with trigger pressures of (0.15±0.05)cmH2O, (0.3±0.05)cmH2O, and (0.45±0.05)cmH2O respectively.
[0009] Furthermore, in the pulse oxygen supply mode, as the patient's respiratory rate increases, the pulse flow rate is kept consistent for each breath through servo control, and each pulse oxygen supply mode has a corresponding maximum respiratory rate. When the respiratory rate is higher than the maximum frequency, the pulse flow rate is automatically reduced proportionally.
[0010] Furthermore, the oxygen concentrator adjusts the flow rate based on a comparison between the ambient temperature and the standard lung temperature. When the ambient temperature is higher than the standard lung temperature, the flow rate decreases, and when it is lower than the standard lung temperature, the flow rate increases.
[0011] Furthermore, the oxygen concentrator includes an intelligent mode switching module, used for:
[0012] In pulse oxygen supply mode, if no patient inhalation is detected within 60 seconds, switch to continuous mode to output flow at C3 level and issue an audible and visual alarm.
[0013] Disable audible alarms and LED indicators in combat environments.
[0014] Furthermore, the battery includes a safety circuit for adjusting the charging voltage and current based on the battery voltage. Charging is stopped when the battery voltage is greater than 16V, the charging current is less than 0.66A, and the relative charge is greater than 93%, to prevent overcharging, over-discharging, and damage from external short circuits.
[0015] Furthermore, the battery is equipped with multiple temperature sensors for detecting battery temperature:
[0016] During the discharge process, if the battery temperature exceeds 59°C during discharge, the system will shut down.
[0017] During charging, if the battery temperature is detected to be above 40°C or below 5°C, the charger will be interrupted. Normal operation will resume once the battery temperature recovers.
[0018] Furthermore, the oxygen generator also includes an application interface, a mechanical interface, and an electrical interface;
[0019] The application interface is used to connect to the nasal cannula for patient use;
[0020] The mechanical interface does not require fixing and has no external connection during normal use;
[0021] The electrical interface is used to connect to a power source.
[0022] Furthermore, the power supply connected to the electrical interface includes: 100V-240V, 50Hz-60Hz AC power, 115V, 400Hz AC power, 24V DC power or rechargeable battery. When powered by AC, the input current is 1.3A-2.5A, the output voltage is 24VDC, and the output power is 200W. When powered by 24V DC, the input voltage is 20VDC-28VDC, and the input current is 10A.
[0023] By employing the embodiments of this utility model, through dual-mode oxygen supply, environmental adaptive flow compensation, intelligent switching, and silent combat design, the problems of traditional portable oxygen concentrators such as single oxygen supply, poor environmental adaptability, easy battery damage, and battlefield exposure are solved, enabling precise, efficient, and safe personalized oxygen supply.
[0024] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in one or more embodiments of this specification or in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This specification provides a schematic diagram of the structure of an oxygen generator according to one or more embodiments.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1: Air intake cover; 2: Fiberglass sleeve; 3: PCB board assembly; 4: Compressor assembly; 5: Brushless motor; 6: Cooling fan; 7: ATF assembly. Detailed Implementation
[0029] To enable those skilled in the art to better understand the technical solutions in one or more embodiments of this specification, the technical solutions in one or more embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, and not all of the embodiments. Based on one or more embodiments of this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this document.
[0030] This utility model provides an oxygen generator. Figure 1 This specification provides a schematic diagram of the structure of an oxygen generator according to one or more embodiments. Figure 1 As shown, an oxygen concentrator according to an embodiment of the present invention specifically includes:
[0031] The oxygen concentrator comprises an air inlet cover 1, a fiberglass sleeve 2, a PCB board assembly 3, a compressor assembly 4, a brushless motor 5, a cooling fan 6, an ATF assembly 7, and a battery bridge port wiring harness assembly. The air inlet cover 1 protects the air inlet and guides air into the oxygen concentrator. The fiberglass sleeve 2 protects, insulates, and supports the internal components of the oxygen concentrator. The PCB board assembly 3 monitors, controls, and adjusts the operating parameters of the oxygen concentrator. The compressor assembly 4, driven by the brushless motor 5, compresses the incoming air. The brushless motor 5 provides power to the compressor assembly. The cooling fan 6 dissipates heat from components that generate heat during operation. The ATF assembly 7 consists of five molecular sieve adsorption towers, used in a time-sharing manner to perform high-pressure adsorption and low-pressure desorption of nitrogen in the input compressed air, achieving continuous oxygen production. The battery bridge port wiring harness assembly connects the battery to the various electrical components of the oxygen concentrator.
[0032] The PCB board assembly 3 is specifically used to adjust the oxygen supply mode, which includes a continuous oxygen supply mode and a pulse oxygen supply mode. In the continuous oxygen supply mode, the flow rate is divided into three levels: 1 LPM ± 0.2 LPM, 2 LPM ± 0.2 LPM, and 3 LPM ± 0.2 LPM. In the pulse oxygen supply mode, the flow rate is divided into six levels: 16 mL, 32 mL, 48 mL, 64 mL, 80 mL, and 96 mL. The pulse oxygen supply mode is triggered by the patient's inhalation. In the pulse oxygen supply mode, the oxygen generator has three adjustable trigger sensitivity levels with trigger pressures of (0.15 ± 0.05) cmH2O, (0.3 ± 0.05) cmH2O, and (0.45 ± 0.05) cmH2O. As the patient's respiratory rate increases, servo control maintains a consistent pulse flow rate for each breath. Each pulse oxygen supply mode has a corresponding maximum respiratory rate; when the respiratory rate exceeds the maximum rate, the pulse flow rate automatically decreases proportionally.
[0033] In one embodiment, the oxygen concentrator adjusts the flow rate based on a comparison between the ambient temperature and the standard lung temperature; when the ambient temperature is higher than the standard lung temperature, the flow rate decreases, and when the ambient temperature is lower than the standard lung temperature, the flow rate increases.
[0034] In one embodiment, the oxygen concentrator further includes an intelligent mode switching module for: switching to continuous mode with C3 flow rate output and emitting audible and visual alarms when no patient inhalation is detected within 60 seconds in pulse oxygen supply mode; and disabling audible alarms and LED indicator lights in combat environments.
[0035] In one embodiment, the battery includes a safety circuit for adjusting the charging voltage and current based on the battery voltage, stopping charging when the battery voltage is greater than 16V, the charging current is less than 0.66A, and the relative charge is greater than 93%, to prevent overcharging, over-discharging, and external short-circuit damage.
[0036] The battery is equipped with multiple temperature sensors to detect battery temperature: during discharge, if the battery temperature exceeds 59°C, the system is shut down; during charging, if the battery temperature exceeds 40°C or falls below 5°C, the charger operation is interrupted, and normal operation resumes after the battery temperature recovers.
[0037] In one embodiment, the oxygen concentrator further includes an application interface, a mechanical interface, and an electrical interface; the application interface is used to connect a nasal cannula for patient use; the mechanical interface is not fixed and has no external connection during normal use; and the electrical interface is used to connect a power source.
[0038] The power supply connected to the electrical interface includes: 100V-240V, 50Hz-60Hz AC power, 115V, 400Hz AC power, 24V DC power or rechargeable battery. When powered by AC, the input current is 1.3A-2.5A, the output voltage is 24VDC, and the output power is 200W. When powered by 24V DC, the input voltage is 20VDC-28VDC, and the input current is 10A.
[0039] By employing the embodiments of this utility model, through dual-mode oxygen supply, environmental adaptive flow compensation, intelligent switching, and silent combat design, the problems of traditional portable oxygen concentrators such as single oxygen supply, poor environmental adaptability, easy battery damage, and battlefield exposure are solved, enabling precise, efficient, and safe personalized oxygen supply.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. An oxygen generator, characterized by comprising: The system includes an air inlet cover, a fiberglass sleeve, a PCB board assembly, a compressor assembly, a brushless motor, a cooling fan, an ATF assembly, and a battery bridge port wiring harness assembly. The air inlet cover protects the air inlet and guides air into the oxygen concentrator. The fiberglass sleeve protects, insulates, and supports the internal components of the oxygen concentrator. The PCB board assembly monitors, controls, and adjusts the operating parameters of the oxygen concentrator. The compressor assembly, driven by the brushless motor, compresses the incoming air. The brushless motor provides power to the compressor assembly. The cooling fan dissipates heat from components that generate heat during operation. The ATF assembly consists of five molecular sieve adsorption towers, used in a time-sharing manner to perform high-pressure adsorption and low-pressure desorption of nitrogen in the input compressed air, achieving continuous oxygen production. The battery bridge port wiring harness assembly connects the battery to the various electrical components of the oxygen concentrator.
2. The oxygen generator according to claim 1, characterized in that, The PCB board assembly is specifically used to adjust the oxygen supply mode, which includes a continuous oxygen supply mode and a pulse oxygen supply mode. In the continuous oxygen supply mode, the flow rate is divided into 3 levels: 1 LPM ± 0.2 LPM, 2 LPM ± 0.2 LPM, and 3 LPM ± 0.2 LPM. In the pulse oxygen supply mode, the flow rate is divided into 6 levels: 16 mL, 32 mL, 48 mL, 64 mL, 80 mL, and 96 mL. The pulse oxygen supply mode is triggered by the patient's inhalation.
3. The oxygen generator according to claim 2, characterized in that, In the pulse oxygen supply mode, the oxygen generator is equipped with three adjustable trigger sensitivities, with trigger pressures of (0.15±0.05)cmH2O, (0.3±0.05)cmH2O, and (0.45±0.05)cmH2O respectively.
4. The oxygen generator according to claim 2, characterized in that, In the pulse oxygen supply mode, as the patient's respiratory rate increases, the pulse flow rate is kept consistent for each breath through servo control. Each pulse oxygen supply mode has a corresponding maximum respiratory rate. When the respiratory rate is higher than the maximum frequency, the pulse flow rate is automatically reduced proportionally.
5. The oxygen generator according to claim 1, characterized in that, The oxygen concentrator adjusts its flow rate based on a comparison between the ambient temperature and the standard lung temperature. When the ambient temperature is higher than the standard lung temperature, the flow rate decreases, and when it is lower than the standard lung temperature, the flow rate increases.
6. The oxygen generator according to claim 2, characterized in that, The oxygen generator includes an intelligent mode switching module for: In pulse oxygen supply mode, if no patient inhalation is detected within 60 seconds, switch to continuous mode to output flow at C3 level and issue an audible and visual alarm. Disable audible alarms and LED indicators in combat environments.
7. The oxygen generator according to claim 1, characterized in that, The battery includes a safety circuit for adjusting the charging voltage and current based on the battery voltage. Charging is stopped when the battery voltage is greater than 16V, the charging current is less than 0.66A, and the relative charge is greater than 93%, to prevent overcharging, over-discharging, and damage from external short circuits.
8. The oxygen generator according to claim 1, characterized in that, The battery is equipped with multiple temperature sensors for detecting battery temperature: During the discharge process, if the battery temperature exceeds 59°C during discharge, the system will shut down. During charging, if the battery temperature is detected to be above 40°C or below 5°C, the charger will be interrupted. Normal operation will resume once the battery temperature recovers.
9. The oxygen generator according to claim 1, characterized in that, The oxygen generator also includes an application interface, a mechanical interface, and an electrical interface; The application interface is used to connect to the nasal cannula for patient use; The mechanical interface does not require fixing and has no external connection during normal use; The electrical interface is used to connect to a power source.
10. The oxygen generator according to claim 9, characterized in that, The power supply connected to the electrical interface includes: 100V-240V, 50Hz-60Hz AC power, 115V, 400Hz AC power, 24V DC power or rechargeable battery. When powered by AC, the input current is 1.3A-2.5A, the output voltage is 24VDC, and the output power is 200W. When powered by 24V DC, the input voltage is 20VDC-28VDC, and the input current is 10A.