Portable oxygen generator

Abstract

The utility model provides a portable oxygen generator. The oxygen generator comprises a first accommodating space composed of a plate-shaped lower sieve plate and a hollow cuboid shell-shaped shell with an opening in one surface; the screen drum, the oxygen storage tank, the gas inlet capacitor and the nitrogen discharge capacitor are all hollow shells and form a hollow annular structure; the hollow annular structure is arranged in the first accommodating space and is fixed above the lower sieve plate; a platy upper sieve plate is fixedly mounted at the upper end of the hollow annular structure; the outer side surface of the inner ring of the hollow annular structure, the upper surface of the lower sieve plate and the lower surface of the upper sieve plate form a second accommodating space; the compressor is fixed in the second accommodating space and above the lower sieve plate; the control plate is fixed in the second accommodating space and below the upper sieve plate; a fan and an electromagnetic valve assembly are fixedly installed below the control panel. The machine has the advantages that the whole machine is high in structural strength, and noise can be effectively eliminated.

Description

Technical Field

[0001] This application belongs to the field of medical devices, and particularly relates to a portable oxygen generator. Background Art

[0002] A portable oxygen generator is a small and lightweight device, widely used in the medical and health fields, for separating oxygen from the surrounding air and providing it to people in need of oxygen therapy or supplementation.

[0003] As Figure 1 shown, in the existing portable oxygen generator, the compressor 5 is placed in the compressor compartment, and components such as an oxygen storage tank 4 and an independent sieve tube 22 are arranged beside the compressor compartment. All components are installed in the outer shell 12. The compressor compartment, the outer shell 12, etc. are made of plastic structures. During use, the compressor 5 and the fan will generate relatively large noises. Due to the limited size of the portable oxygen generator, it is impossible to add too many sound insulation devices, so the noise is relatively large; in addition, the portable oxygen generator needs to be frequently carried outdoors, and the existing device has relatively weak structural strength and cannot reach the same protection strength as a handheld device, and is easily damaged when dropped. Utility Model Content

[0004] The purpose of this application is to overcome the defects of the existing portable oxygen generator with relatively weak structural strength and relatively large noise.

[0005] To achieve the above purpose, this application proposes a portable oxygen generator, which includes a first accommodation space composed of a plate-shaped lower sieve plate and a hollow cuboid shell-shaped outer shell with one open side;

[0006] The sieve tube, the oxygen storage tank, the intake air capacitor, and the nitrogen discharge capacitor are all hollow shells, together forming a hollow ring structure; the hollow ring structure is placed in the first accommodation space and fixed above the lower sieve plate;

[0007] A plate-shaped upper sieve plate is fixedly installed at the upper end of the hollow ring structure; the outer surface of the inner ring of the hollow ring structure, together with the upper surface of the lower sieve plate and the lower surface of the upper sieve plate, forms a second accommodation space;

[0008] The compressor is fixed in the second accommodation space, above the lower sieve plate; the control board is fixed in the second accommodation space, below the upper sieve plate; a fan and a solenoid valve assembly are fixedly installed below the control board;

[0009] An air inlet is provided on the outer side wall of the air inlet air chamber; the air inlet air chamber is communicated with the air inlet of the compressor through a first air pipe; the air outlet of the compressor is communicated with the air inlet of the solenoid valve assembly through a second air pipe; the solenoid valve assembly has two air outlets, one of which is communicated with the sieve cylinder through a fourth air pipe and the internal air path of the upper sieve plate; the other air outlet of the solenoid valve assembly is communicated with the nitrogen discharge air chamber through a third air pipe; the nitrogen discharge air chamber has an opening on one side of the second accommodation space; the bottom of the sieve cylinder is communicated with the oxygen storage tank through the internal air path of the lower sieve plate; the air outlet of the oxygen storage tank is communicated with the oxygen outlet of the oxygen generator to provide oxygen for the outside; there is also an air path inside the lower sieve plate to communicate the second accommodation space with the outside air.

[0010] As an improvement of the above oxygen generator, after the fan starts, it blows air towards the compressor.

[0011] As an improvement of the above oxygen generator, the sieve cylinder, the oxygen storage tank, the air inlet air chamber and the nitrogen discharge air chamber are made by a metal integral forming process.

[0012] As an improvement of the above oxygen generator, the materials of the sieve cylinder, the oxygen storage tank, the air inlet air chamber and the nitrogen discharge air chamber are aluminum alloy or aluminum-magnesium alloy.

[0013] As an improvement of the above oxygen generator, the materials of the upper sieve plate and the lower sieve plate are PC+ABS.

[0014] As an improvement of the above oxygen generator, the number of the sieve cylinders is one or more.

[0015] As an improvement of the above oxygen generator, the oxygen generator further includes a battery, which is fixed below the lower sieve plate.

[0016] As an improvement of the above oxygen generator, the outer shell has an opening for filtering air.

[0017] Compared with the prior art, the advantages of the present application are as follows:

[0018] The technical solution of the present application integrally forms the sieve cylinder, the oxygen storage tank, the air inlet air chamber and the nitrogen discharge air chamber through a metal forming process, and places the control air paths such as the compressor, the solenoid valve, the fan and the PCBA (control board) in a hollow ring structure, which can block the noise transmission and effectively protect the internal structure, and improve the overall structure strength of the machine. Description of the Drawings

[0019] Figure 1 The figure shows the structure diagram of the existing portable oxygen generator;

[0020] Figure 2 The figure shows the cross-sectional view of the portable oxygen generator of the present application;

[0021] Figure 3 The figure shows the longitudinal sectional view of the portable oxygen generator of the present application.

[0022] Reference Signs:

[0023] 1. Inlet air chamber; 2. First sieve tube

[0024] 3. Second sieve tube; 4. Oxygen storage tank

[0025] 5. Compressor; 6. Upper sieve plate

[0026] 7. Lower sieve plate; 8. Battery

[0027] 9. Fan; 10. Control board

[0028] 11. Nitrogen discharge air chamber; 12. Housing

[0029] 13. Solenoid valve assembly; 14. First accommodation space

[0030] 15. Second accommodation space; 16. Oxygen outlet

[0031] 17. First air pipe; 18. Second air pipe

[0032] 19. Third air pipe; 20. Fourth air pipe

[0033] 22. Independent sieve tube Detailed Embodiment

[0034] The technical solution of the present application will be described in detail below with reference to the accompanying drawings.

[0035] A portable oxygen generator provided by the present application, through a new structural solution, integrally forms a molecular sieve tube, an oxygen storage tank, an inlet air chamber and a nitrogen discharge air chamber by a metal forming process, and places control air paths such as a compressor, a solenoid valve, a fan and a PCBA (control board) in an annular structure, which can block noise transmission and effectively protect the internal structure, and improve the overall structural strength of the machine.

[0036] As Figure 2 and Figure 3 shown, the portable oxygen generator provided by the present application uses the battery 8 as the base, and the lower sieve plate 7 is installed on the battery 8. The housing 12 is a cuboid hollow shell with one open side, and its opening faces downward and is buckled to the lower sieve plate 7, so that the housing 12 and the lower sieve plate 7 together form a cuboid-shaped first accommodation space 14. Other components of the portable oxygen generator are installed in the first accommodation space 14. The housing 12 has an opening for filtering air to keep the air inside and outside the first accommodation space 14 in circulation.

[0037] Through a metal one-piece forming process, the first sieve tube 2, the second sieve tube 3, the oxygen storage tank 4, the intake air capacitance 1 and the nitrogen discharge air capacitance 11 are integrally formed into a hollow ring structure and placed on the lower sieve plate 7. The ring structure formed by the inner ring side and the outer ring side of the hollow ring structure has multiple spaces separated by partitions inside, which serve as the first sieve tube 2, the second sieve tube 3, the oxygen storage tank 4, the intake air capacitance 1 and the nitrogen discharge air capacitance 11 respectively. An upper sieve plate 6 is installed at the upper end of the hollow ring structure. The outer surface of the outer ring of the hollow ring structure, together with the upper surface of the lower sieve plate 7 and the lower surface of the upper sieve plate 6, forms the second accommodation space 15.

[0038] The compressor 5 is fixed inside the second accommodation space 15, above the lower sieve plate 7. The control board 10 is fixed inside the second accommodation space 15, below the upper sieve plate 6. A fan 9 is fixedly installed below the control board 10. An electromagnetic valve assembly 13 is fixedly installed on one side of the fan 9.

[0039] An air inlet is provided on the outer wall of the intake air capacitance 1, and air can enter the intake air capacitance 1 through the air inlet. The intake air capacitance 1 is connected to the intake port of the compressor 5 through the first air pipe 17. The outlet of the compressor 5 is connected to the intake port of the electromagnetic valve assembly 13 through the second air pipe 18. The electromagnetic valve assembly 13 has two outlet ports. One of the outlet ports is connected to the air path inside the upper sieve plate 6 through the fourth air pipe 20 and is connected to the first sieve tube 2 and the second sieve tube 3 to provide a gas source for the two sieve tubes. The other outlet port of the electromagnetic valve assembly 13 is connected to the nitrogen discharge air capacitance 11 through the third air pipe 19. The nitrogen discharge air capacitance 11 has an opening on one side of the second accommodation space 15 for discharging nitrogen into the second accommodation space 15. The fan 9 blows air towards the compressor 5 to discharge nitrogen out of the device through the internal air path of the lower sieve plate 7, and at the same time can cool the compressor 5. The first sieve tube 2 and the second sieve tube 3 separate oxygen from the air, enter the internal air path of the lower sieve plate 7 from the bottom, and send the oxygen into the oxygen storage tank 4. The outlet of the oxygen storage tank 4 is connected to the oxygen outlet 16 of the device to provide oxygen for the outside world.

[0040] The materials of the first sieve tube 2, the second sieve tube 3, the oxygen storage tank 4, the intake air capacitance 1 and the nitrogen discharge air capacitance 11 are aluminum alloy or aluminum-magnesium alloy. The materials of the upper sieve plate 6 and the lower sieve plate 7 are non-metallic materials with a certain strength, which can be PC + ABS.

[0041] The first sieve tube 2 and the second sieve tube 3 can be combined into 1 sieve tube, or further divided into multiple sieve tubes.

[0042] The hollow annular structure composed of the first sieve cylinder 2, the second sieve cylinder 3, the oxygen storage tank 4, the intake air capacitance 1 and the nitrogen discharge capacitance 11 is integrally formed of metal. After forming, the structural strength is relatively high. When the external impact force impacts the equipment, the hollow annular structure can effectively prevent the external force from acting on devices such as the compressor 5, the solenoid valve assembly 13, the fan 9 and the control board 10, effectively protecting and avoiding damage to the devices, so that the equipment can be used in a relatively poor environment and transportation conditions. The control devices such as the compressor 5, the solenoid valve assembly 13, the fan 9 and the control board 10 are arranged inside the hollow annular structure. Since the hollow annular structure has a certain thickness, it can effectively prevent the noise of the compressor 5 from spreading to the outside.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that any modification or equivalent replacement of the technical solutions of the present application does not depart from the spirit and scope of the technical solutions of the present application, and they should all be covered within the scope of the claims of the present application.

Claims

1. A portable oxygen generator, characterized in that, The oxygen generator includes a first accommodation space (14) composed of a plate-shaped lower sieve plate (7) and a hollow rectangular parallelepiped shell-shaped outer shell (12) with one open side; The sieve cylinder, oxygen storage tank (4), intake air chamber (1), and nitrogen discharge air chamber (11) are all hollow shells, together forming a hollow ring structure; the hollow ring structure is placed inside the first accommodation space (14) and fixed above the lower sieve plate (7); A plate-shaped upper sieve plate (6) is fixedly installed at the upper end of the hollow ring structure; the outer surface of the inner ring of the hollow ring structure, together with the upper surface of the lower sieve plate (7) and the lower surface of the upper sieve plate (6), forms a second accommodation space (15); The compressor (5) is fixed inside the second accommodation space (15), above the lower sieve plate (7); the control board (10) is fixed inside the second accommodation space (15), below the upper sieve plate (6); a fan (9) and a solenoid valve assembly (13) are fixedly installed below the control board (10); An air inlet is provided on the outer side wall of the intake air chamber (1); the intake air chamber (1) is connected to the intake port of the compressor (5) through a first air pipe (17); the outlet port of the compressor (5) is connected to the intake port of the solenoid valve assembly (13) through a second air pipe (18); the solenoid valve assembly (13) has two outlet ports, one of which is connected to the sieve cylinder through a fourth air pipe (20) and the internal air path of the upper sieve plate (6); the other outlet port of the solenoid valve assembly (13) is connected to the nitrogen discharge air chamber (11) through a third air pipe (19); the nitrogen discharge air chamber (11) has an opening on one side of the second accommodation space (15); the bottom of the sieve cylinder is connected to the oxygen storage tank (4) through the internal air path of the lower sieve plate (7); the outlet port of the oxygen storage tank (4) is connected to the oxygen outlet (16) of the oxygen generator to provide oxygen to the outside; there is also an air path inside the lower sieve plate (7) connecting the second accommodation space (15) to the outside air.

2. The portable oxygen generator according to claim 1, wherein After the fan (9) is started, it blows air towards the compressor (5).

3. The portable oxygen generator according to claim 1, wherein The sieve cylinder, oxygen storage tank (4), intake air chamber (1), and nitrogen discharge air chamber (11) are made by a metal integral molding process.

4. The portable oxygen generator according to claim 3, characterized in that, The materials of the sieve cylinder, oxygen storage tank (4), intake air chamber (1), and nitrogen discharge air chamber (11) are aluminum alloy or aluminum-magnesium alloy.

5. The portable oxygen generator according to claim 1, wherein The materials of the upper sieve plate (6) and the lower sieve plate (7) are PC + ABS.

6. The portable oxygen generator according to claim 1, wherein The number of the sieve cylinders is one or more.

7. The portable oxygen generator according to claim 1, characterized in that, The oxygen generator further includes a battery (8), which is fixed below the lower sieve plate (7).

8. The portable oxygen generator according to claim 1, wherein, The outer shell (12) has an opening for filtering air.

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