Modular oxygen generator structure

By employing a modular structure and heat dissipation measures, the impact of the oxygen generator's heat on subsequent modules has been resolved, achieving effective heat dissipation and efficient oxygen production, ensuring stable equipment operation and high-purity oxygen output.

CN224331832UActive Publication Date: 2026-06-09HENAN DONGLIANG MEDICAL EQUIP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN DONGLIANG MEDICAL EQUIP
Filing Date
2025-07-15
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

When the oxygen generator is working, the heat generated by air compression can easily have an adverse effect on subsequent modules, and existing technologies are unable to effectively dissipate the heat.

Method used

It adopts a modular structure, including an oil-free silent air compressor, a cooling box and an air pretreatment module. Compressed air is delivered to the cooling pipe through the intake pipe and is cooled by a cooling fan and a heat sink. At the same time, the air pretreatment module is equipped with a dryer, a fine filter and an oil removal filter to remove impurities, and oxygen separation is achieved by a molecular sieve adsorption module.

Benefits of technology

Effective heat dissipation ensures that the outlet air temperature does not exceed the set temperature, preventing heat from affecting the performance of subsequent modules. Furthermore, large particulate impurities are filtered out through filters and filter elements to ensure stable operation of the equipment and obtain a high concentration of oxygen.

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Abstract

The utility model discloses a modularization oxygen generator structure, including the shell body, the inside of shell body is installed with oil -free silent air compressor, cooling box and air pretreatment module from left to right in proper order, the both sides of cooling box are opened in the symmetry and are provided with the heat dissipation groove, the inside of heat dissipation groove is provided with the dust screen, the inside of cooling box is provided with the cooling pipe, fixedly connected with the air inlet pipe between cooling pipe and oil -free silent air compressor, fixedly connected with the exhaust pipe between cooling pipe and air pretreatment module. The utility model discloses through the air inlet pipe and send to the cooling pipe in compressed air, and the compressed air removes in the cooling pipe, starts the cooling fan simultaneously, makes the air flow rate of cooling pipe vicinity increase, and the heat in the compressed air is taken out along with the flow of air, and dissipates to the outside from the heat dissipation groove and the heat dissipation hole, to realize heat dissipation, ensure that the outlet air temperature does not exceed the set temperature.
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Description

Technical Field

[0001] This utility model relates to the field of oxygen generator technology, specifically a modular oxygen generator structure. Background Technology

[0002] An oxygen concentrator is a device used for oxygen therapy that extracts oxygen from indoor air, typically providing up to 95% pure oxygen. Its working principle primarily utilizes molecular sieve technology, employing pressure adsorption and atmospheric pressure desorption to remove nitrogen from the air and produce oxygen for the user to inhale. Various types of oxygen concentrators are available on the market, including molecular sieve type, oxygen-enriched membrane type, and water electrolysis type.

[0003] When an oxygen concentrator is working, it typically uses an air compression module to compress the air in the surrounding environment, providing a sufficient pressure air source for subsequent air pretreatment and molecular sieve adsorption. However, air compression also generates heat, which moves inside the oxygen concentrator with the compressed air and can easily have adverse effects on subsequent modules. Utility Model Content

[0004] The purpose of this invention is to provide a modular oxygen generator structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular oxygen generator structure, including an outer shell, wherein an oil-free silent air compressor, a cooling box, and an air pretreatment module are installed sequentially from left to right inside the outer shell; heat dissipation slots are symmetrically provided on both sides of the cooling box; a dustproof net is provided inside the heat dissipation slots; a cooling pipe is provided inside the cooling box; an air inlet pipe is fixedly connected between the cooling pipe and the oil-free silent air compressor; and an exhaust pipe is fixedly connected between the cooling pipe and the air pretreatment module.

[0006] As a further preferred embodiment of this technical solution, two connecting cylinders are symmetrically arranged on the side of the cooling box near the air pretreatment module. A cooling fan is installed inside the connecting cylinder, and a grid is installed on the side of the connecting cylinder away from the cooling box.

[0007] As a further preferred embodiment of this technical solution, the air pretreatment module is provided with a dryer, a fine filter and an oil removal filter installed sequentially along its length.

[0008] As a further preferred embodiment of this technical solution, a molecular sieve adsorption module is provided inside the outer shell, and a connecting pipe is fixedly connected between the molecular sieve adsorption module and the air pretreatment module. The connecting pipe is located on the side of the air pretreatment module away from the exhaust pipe, and an oxygen outlet is provided between the molecular sieve adsorption module and the outer shell.

[0009] As a further preferred embodiment of this technical solution, a control panel is provided on the top of the outer casing, and multiple heat dissipation holes are symmetrically opened on the bottom sides of the outer casing.

[0010] As a further preferred embodiment of this technical solution, a mounting frame is fixedly connected to the side of the outer shell away from the oxygen outlet. Multiple adjusting blades are arranged inside the mounting frame along the height direction. A placement groove is opened at the top of the mounting frame. A filter screen is arranged inside the placement groove. A sealing gasket is arranged between the filter screen and the placement groove. A baffle is fixedly connected to the top of the filter screen.

[0011] As a further preferred embodiment of this technical solution, a connecting frame is fixedly connected to one side of the inner wall of the outer casing, a filter element is provided inside the connecting frame, and a bent pipe is fixedly connected between the connecting frame and the oil-free silent air compressor.

[0012] This utility model provides a modular oxygen generator structure, which has the following beneficial effects:

[0013] (1) This utility model delivers compressed air to the cooling pipe through the air inlet pipe. The compressed air moves in the cooling pipe and the cooling fan is activated at the same time to increase the air flow rate near the cooling pipe. The heat in the compressed air is carried out with the air flow and dissipates to the outside from the heat dissipation slot and heat dissipation hole, thereby achieving heat dissipation and ensuring that the outlet air temperature does not exceed the set temperature.

[0014] (2) By setting an installation frame on one side of the outer shell, the oil-free silent air compressor can filter out large dust particles and impurities in the air through the combined action of the filter screen and filter element when it is working, so as to prevent them from entering the interior of the oil-free silent air compressor and affecting its performance and life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the outer shell of this utility model;

[0017] Figure 3 This is a schematic diagram of the mounting frame and connecting frame structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the filter structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the air pretreatment module of this utility model;

[0020] Figure 6 This is a schematic diagram of the cooling pipe structure of this utility model.

[0021] In the diagram: 1. Outer casing; 2. Oil-free silent air compressor; 3. Cooling box; 4. Air pretreatment module; 5. Heat dissipation slot; 6. Dustproof net; 7. Cooling pipe; 8. Inlet pipe; 9. Exhaust pipe; 10. Connecting cylinder; 11. Cooling fan; 12. Grille; 13. Dryer; 14. Fine filter; 15. Oil removal filter; 16. Molecular sieve adsorption module; 17. Connecting pipe; 18. Oxygen outlet; 19. Control panel; 20. Heat dissipation holes; 21. Mounting frame; 22. Adjusting blades; 23. Placement slot; 24. Filter screen; 25. Sealing gasket; 26. Baffle; 27. Connecting frame; 28. Filter element; 29. ​​Bend. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model provides a technical solution: such as Figures 1 to 6 As shown in this embodiment, a modular oxygen generator structure includes an outer shell 1. Inside the outer shell 1, from left to right, are installed an oil-free silent air compressor 2, a cooling box 3, and an air pretreatment module 4. The cooling box 3 has symmetrical heat dissipation slots 5 on both sides. The inside of the heat dissipation slots 5 is equipped with a dustproof net 6. The inside of the cooling box 3 is equipped with a cooling pipe 7. An air inlet pipe 8 is fixedly connected between the cooling pipe 7 and the oil-free silent air compressor 2. An exhaust pipe 9 is fixedly connected between the cooling pipe 7 and the air pretreatment module 4.

[0024] Compressed air is delivered to the cooling pipe 7 through the intake pipe 8. A temperature sensor is installed in the intake pipe 8 to detect the temperature of the delivered compressed air and transmit the detected temperature signal to the control panel 19, thereby realizing real-time temperature monitoring. When the temperature exceeds the set temperature, the control system controls the cooling fan 11 to work, increasing the airflow near the cooling pipe 7. The heat in the compressed air is carried away with the airflow and dissipates to the outside through the heat dissipation slot 5 and heat dissipation hole 20, thereby achieving heat dissipation and ensuring that the outlet air temperature does not exceed the set temperature to avoid adverse effects on subsequent modules.

[0025] Two connecting cylinders 10 are symmetrically arranged on the side of the cooling box 3 near the air pretreatment module 4. A cooling fan 11 is installed inside the connecting cylinder 10, and a grid mesh 12 is installed on the side of the connecting cylinder 10 away from the cooling box 3.

[0026] The air pretreatment module 4 is equipped with a dryer 13, a fine filter 14 and an oil removal filter 15 in sequence along its length.

[0027] The air pretreatment module 4 is equipped with a dryer 13, a fine filter 14, and an oil removal filter 15. The dryer 13 is an activated alumina dryer used to remove moisture from the compressed air. The fine filter 14 is used to further filter out small particles in the air to ensure that the air entering the molecular sieve adsorption module 16 is clean and free of impurities. The oil removal filter 15 is an activated carbon adsorption type to remove residual oil mist in the air. A humidity sensor is also installed inside the air pretreatment module 4 to monitor the air humidity in real time. In conjunction with the dryer 13, the air humidity is maintained within a suitable range to ensure the stable operation of the molecular sieve adsorption process.

[0028] The outer casing 1 is equipped with a molecular sieve adsorption module 16. A connecting pipe 17 is fixedly connected between the molecular sieve adsorption module 16 and the air pretreatment module 4. The connecting pipe 17 is located on the side of the air pretreatment module 4 away from the exhaust pipe 9. An oxygen outlet 18 is provided between the molecular sieve adsorption module 16 and the outer casing 1.

[0029] The molecular sieve adsorption module 16 uses fiber molecular sieves as adsorbents, which are filled in the adsorption bed. By utilizing the adsorption difference of molecular sieves for nitrogen and oxygen in the air, nitrogen and oxygen are separated to obtain a high concentration of oxygen.

[0030] The top of the outer casing 1 is equipped with a control panel 19, and multiple heat dissipation holes 20 are symmetrically opened on the bottom sides of the outer casing 1.

[0031] A mounting frame 21 is fixedly connected to the side of the outer casing 1 away from the oxygen outlet 18. Multiple adjusting blades 22 are arranged inside the mounting frame 21 along the height direction. A placement groove 23 is opened on the top of the mounting frame 21. A filter screen 24 is arranged inside the placement groove 23. A sealing gasket 25 is arranged between the filter screen 24 and the placement groove 23. A baffle 26 is fixedly connected to the top of the filter screen 24.

[0032] A connecting frame 27 is fixedly connected to one side of the inner wall of the outer casing 1. A filter element 28 is installed inside the connecting frame 27. A bent pipe 29 is fixedly connected between the connecting frame 27 and the oil-free silent air compressor 2.

[0033] An installation frame 21 is provided on one side of the outer casing 1 so that when the oil-free silent air compressor 2 is working, large particles of dust and impurities in the air are filtered out by the combined action of the filter screen 24 and the filter element 28 to prevent them from entering the interior of the oil-free silent air compressor 2 and affecting its performance and lifespan. The gap between the two adjacent adjusting blades 22 can be adjusted so as to adjust in real time according to the working conditions.

[0034] This utility model provides a modular oxygen generator structure, the specific working principle of which is as follows:

[0035] In operation, the oil-free silent air compressor 2 operates, and air enters the mounting frame 21 through the gaps between the adjusting blades 22. Large particles of dust and impurities in the air are filtered out by the filter screen 24 and filter element 28. The filtered air then enters the oil-free silent air compressor 2 through the bend pipe 29, where it is compressed. The compressed air enters the cooling pipe 7 through the intake pipe 8. A temperature sensor is installed in the intake pipe 8 to detect the temperature of the compressed air. If the temperature of the compressed air is too high, the control system activates the cooling fan 11 to cool the air. As the air velocity near tube 7 increases, the heat in the compressed air is carried away by the air flow and dissipates to the outside through the heat dissipation slot 5 and heat dissipation hole 20. The cooled air enters the air pretreatment module 4 and is processed by the dryer 13, fine filter 14 and oil removal filter 15 to remove impurities such as moisture, oil mist, fine particulate matter and harmful gases from the air. The clean air then enters the molecular sieve adsorption module 16. By utilizing the adsorption difference of the molecular sieve on nitrogen and oxygen in the air, nitrogen and oxygen are separated to obtain a high concentration of oxygen.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular oxygen generator structure, comprising an outer shell (1), characterized in that: The outer casing (1) contains, from left to right, an oil-free silent air compressor (2), a cooling box (3), and an air pretreatment module (4). The cooling box (3) has symmetrical heat dissipation slots (5) on both sides. The cooling box (5) is equipped with a dustproof net (6). The cooling box (3) is equipped with a cooling pipe (7). The cooling pipe (7) and the oil-free silent air compressor (2) are fixedly connected by an air inlet pipe (8). The cooling pipe (7) and the air pretreatment module (4) are fixedly connected by an exhaust pipe (9).

2. The modular oxygen generator structure according to claim 1, characterized in that: The cooling box (3) has two connecting cylinders (10) symmetrically arranged on the side near the air pretreatment module (4). The connecting cylinder (10) is equipped with a cooling fan (11), and the connecting cylinder (10) is equipped with a grid (12) on the side away from the cooling box (3).

3. The modular oxygen generator structure according to claim 1, characterized in that: The air pretreatment module (4) is equipped with a dryer (13), a fine filter (14) and an oil removal filter (15) in sequence along its length.

4. The modular oxygen generator structure according to claim 1, characterized in that: The outer shell (1) is provided with a molecular sieve adsorption module (16), and a connecting pipe (17) is fixedly connected between the molecular sieve adsorption module (16) and the air pretreatment module (4). The connecting pipe (17) is located on the side of the air pretreatment module (4) away from the exhaust pipe (9). An oxygen outlet (18) is provided between the molecular sieve adsorption module (16) and the outer shell (1).

5. The modular oxygen generator structure according to claim 1, characterized in that: The top of the outer casing (1) is provided with a control panel (19), and multiple heat dissipation holes (20) are symmetrically opened on the bottom sides of the outer casing (1).

6. The modular oxygen generator structure according to claim 1, characterized in that: A mounting frame (21) is fixedly connected to the side of the outer shell (1) away from the oxygen outlet (18). Multiple adjusting blades (22) are arranged inside the mounting frame (21) along the height direction. A placement groove (23) is opened on the top of the mounting frame (21). A filter screen (24) is arranged inside the placement groove (23). A sealing gasket (25) is arranged between the filter screen (24) and the placement groove (23). A baffle (26) is fixedly connected to the top of the filter screen (24).

7. The modular oxygen generator structure according to claim 1, characterized in that: A connecting frame (27) is fixedly connected to one side of the inner wall of the outer shell (1). A filter element (28) is provided inside the connecting frame (27). A bent pipe (29) is fixedly connected between the connecting frame (27) and the oil-free silent air compressor (2).