Portable oxygen generator

Abstract

The utility model relates to the technical field of oxygen generators, and discloses a portable oxygen generator, which comprises a shell, an air compressor arranged in the shell, two groups of molecular sieves and a battery module, the air compressor is alternately communicated with the two groups of molecular sieves, each molecular sieve is provided with a sieve shell, two pipe cavities which are transversely arranged and mutually overlapped are formed on the sieve shell, and the battery module is arranged in the two pipe cavities. A connecting nozzle is formed on one side of each pipe cavity, an air inlet is formed on the other side of one pipe cavity, and an oxygen outlet is formed on the other side of one pipe cavity; and a communicating pipe is connected between the two connecting nozzles. The portable oxygen generator aims to greatly reduce the size of the oxygen generator under the condition of ensuring the oxygen purity standard, and is convenient to carry.

Description

Technical Field

[0001] The utility model belongs to the technical field of oxygen concentrators, and particularly relates to a portable oxygen concentrator. Background Art

[0002] With the development of science and technology, people's demands for their living standards are becoming increasingly higher, and various air purifiers and oxygen enrichment devices have gradually entered people's daily lives. Existing oxygen enrichment devices generally use physical pressure swing adsorption, using molecular sieves as the adsorption carrier. At room temperature, air is directly compressed and then rotated into the molecular sieve, separating nitrogen and oxygen through a process of pressurization and decompression.

[0003] At present, the oxygen concentrators sold on the market have longer molecular sieves (in order to increase the time of adsorption of nitrogen atoms), which makes the overall volume of the oxygen concentrator larger and inconvenient to carry out. If the length of the molecular sieve is shortened, the time of adsorption of nitrogen atoms by the molecular sieve will be reduced, resulting in the oxygen purity not meeting the standard.

[0004] In view of this, the inventors conducted in-depth research on the above-mentioned defects in the prior art, and thus came up with this case. Utility Model Content

[0005] The purpose of the utility model is to provide a portable oxygen concentrator, which greatly reduces the volume of the oxygen concentrator while ensuring the standard of oxygen purity, and is easy to carry.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:

[0007] A portable oxygen concentrator includes a shell, an air compressor installed in the shell, two groups of molecular sieves, and a battery module. The air compressor is alternately connected to the two groups of molecular sieves. The molecular sieve has a sieve shell, and the sieve shell is formed with two transversely arranged and superimposed lumens. One side of the two lumens is formed with a connecting nozzle, the other side of one of the lumens is formed with an air inlet, and the other side of the one of the lumens is formed with an oxygen outlet; a connecting pipe is connected between the two connecting nozzles.

[0008] Furthermore, the two groups of molecular sieves are arranged in parallel on the same horizontal plane. Arranging the two groups of molecular sieves in parallel on the same plane can further save space.

[0009] Furthermore, the invention further comprises a handle slidably connected to the housing, the handle comprising a lifting portion and connecting portions located on both sides of the lifting portion, the connecting portions being in sliding contact with the housing, so that the entire oxygen concentrator can be easily carried and moved by the handle.

[0010] Furthermore, the housing is formed with a mounting recess for the handle. The mounting recess comprises a hidden cavity for concealing and accommodating the lifting portion, and sliding cavities located on either side of the hidden cavity. Limiting sliders are formed on either side of the connecting portion, and limiting sliding grooves are formed on either side of the sliding cavity to cooperate with the limiting sliders. The hidden cavity allows the handle to be concealed, making it easier to store or enhance the aesthetics of the oxygen concentrator when it is not in use or when it is moved.

[0011] Furthermore, a clearance groove is formed on the upper back side of the housing, and the clearance groove is communicated with the hidden cavity. The clearance groove is used to facilitate reaching a hand into the hidden cavity and lifting the handle.

[0012] Furthermore, a heat exhaust fan is installed in the housing, and heat dissipation holes are formed on the back of the housing. The heat exhaust fan can be used to discharge the heat generated by the air compressor through the heat dissipation holes.

[0013] After adopting the above structure, the portable oxygen concentrator involved in the utility model, compared with the prior art, forms two transversely arranged and mutually superimposed official cavities in the sieve shell of a molecular sieve, and the two official cavities are connected by a connecting pipe. In this way, while ensuring the adsorption time of nitrogen atoms, the space occupied by the molecular sieve is reduced, thereby greatly reducing the volume of the entire oxygen concentrator, making it easier to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the handle in the present invention in use;

[0017] Figure 3 for Figure 2 A partial enlarged schematic diagram of point A in the middle;

[0018] Figure 4 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 5 for Figure 4 Schematic diagram of the structure from another angle;

[0020] Figure 6 Schematic diagram of the structure of the molecular sieve in this utility model;

[0021] Figure 7 for Figure 6 Schematic cross-section diagram;

[0022] Figure 8 This is a schematic structural diagram of the handle in the present utility model.

[0023] The symbols of the main components are explained as follows: shell 1, mounting groove 11, hidden cavity 111, sliding cavity 112, limiting slide groove 1121, give way groove 12, heat dissipation hole 13, air compressor 2, molecular sieve 3, sieve shell 31, tube cavity 311, connecting nozzle 312, air inlet 313, oxygen outlet 314, connecting pipe 315, battery module 4, handle 5, pulling part 51, connecting part 52, limiting slider 521, heat exhaust fan 6. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts in the drawings or in the specification are numbered the same. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms such as "upper," "lower," "top," "bottom," "left," "right," "front," and "back" mentioned in the embodiments are merely references to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0025] like Figures 1 to 8 As shown, a portable oxygen concentrator involved in the present invention includes a housing 1, an air compressor 2 installed in the housing 1, two groups of molecular sieves 3 and a battery module 4. In addition, there is a control motherboard in the housing 1, and a display screen and control buttons are provided on the front of the housing 1; the battery module 4 is located at the bottom of the housing 1, and a base is formed at the bottom of the battery module 4, and a rubber pad is attached to the lower surface of the base; the air compressor 2 and the two groups of molecular sieves 3 are alternately connected through a four-way valve, and the molecular sieve 3 has a sieve shell 31, and the entire sieve shell 31 is The sieve shell 31 has a rectangular structure, with two transversely arranged and superimposed lumens 311 formed on it. A connecting nozzle 312 is formed on the same side of the two lumens 311, an air inlet 313 is formed on the other side of one of the lumens 311, and an oxygen outlet 314 is formed on the other side of one of the lumens 311; a connecting pipe 315 is connected between the two connecting nozzles 312; specifically, the two oxygen outlets 314 are both connected to a convergence interface, through which the oxygen filtered by the two molecular sieves 3 is converged and transported together.

[0026] Preferably, the two groups of molecular sieves 3 are arranged in parallel on the same horizontal plane. Arranging the two groups of molecular sieves 3 in parallel on the same plane can further save space.

[0027] Preferably, a handle 5 is slidably connected to the housing 1. The handle 5 has a lifting portion 51 and connecting portions 52 located on both sides of the lifting portion 51, forming an inverted U-shaped structure as a whole. The connecting portions 52 are in sliding contact with the housing 1. The handle 5 facilitates the movement of the entire oxygen concentrator. Specifically, a mounting groove 11 is formed on the housing 1 for mounting the handle 5. The mounting groove 11 has a hidden cavity 111 that conceals and accommodates the lifting portion 51, and sliding cavities 112 located on both sides of the hidden cavity 111. Limiting sliders 521 are formed on both sides of the connecting portion 52, and limiting sliding grooves 1121 that cooperate with the limiting sliders 521 are formed on both sides of the sliding cavity 112. When the handle 5 is in the storage state, the surface of the handle 5 is flush with the surface of the housing 1. The hidden cavity 111 can be used to hide the handle, making it easier to store or enhance the aesthetics when the oxygen concentrator is not needed or moving.

[0028] Preferably, a clearance groove 12 is formed on the upper portion of the back of the housing 1, and the clearance groove 12 is communicated with the hidden cavity 111. The clearance groove 12 is used to facilitate reaching a hand into the hidden cavity 111 and lifting the handle 5.

[0029] Preferably, a heat exhaust fan 6 is further installed in the housing 1, and a heat dissipation hole 13 is formed on the back of the housing 1. The heat exhaust fan 6 can be used to discharge the heat generated by the air compressor 2 from the heat dissipation hole 13, thereby improving the service life of the air compressor 2.

[0030] The above describes in detail the portable oxygen concentrator provided by the present invention. The description of the specific embodiments is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A portable oxygen concentrator comprising a housing (1), an air compressor (2) installed in the housing (1), two groups of molecular sieves (3), and a battery module (4), wherein the air compressor (2) and the two groups of molecular sieves (3) are alternately connected, and is characterized in that: The molecular sieve (3) has a sieve shell (31), on which two transversely arranged and mutually superimposed lumens (311) are formed, one side of the two lumens (311) is formed with a connecting nozzle (312), the other side of one of the lumens (311) is formed with an air inlet (313), and the other side of one of the lumens (311) is formed with an oxygen outlet (314); and a connecting pipe (315) is connected between the two connecting nozzles (312).

2. A portable oxygen concentrator according to claim 1, characterized in that: The two groups of molecular sieves (3) are arranged in parallel on the same horizontal plane.

3. A portable oxygen concentrator according to claim 1, characterized in that: It also includes a handle (5) slidably connected to the shell (1), the handle having a lifting portion (51) and connecting portions (52) located on both sides of the lifting portion (51), and the connecting portions (52) are in sliding contact with the shell (1).

4. A portable oxygen concentrator according to claim 3, characterized in that: The shell (1) is provided with an installation groove (11) for installing the handle, and the installation groove (11) has a hidden cavity (111) for concealing and accommodating the lifting portion (51) and a sliding cavity (112) located on both sides of the hidden cavity (111); limiting sliders (521) are formed on both sides of the connecting portion (52), and limiting sliding grooves (1121) that cooperate with the limiting slider (521) are formed on both sides of the sliding cavity (112).

5. A portable oxygen concentrator according to claim 4, characterized in that: A clearance groove (12) is formed on the upper back side of the housing (1), and the clearance groove (12) is communicated with the hidden cavity (111).

6. A portable oxygen concentrator according to claim 1, characterized in that: A heat exhaust fan (6) is also installed in the housing (1), and heat dissipation holes (13) are formed on the back of the housing (1).

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