CN110755993A

CN110755993A - Air flue structure and corresponding oxygen generator

Info

Publication number: CN110755993A
Application number: CN201911039572.XA
Authority: CN
Inventors: 李旭
Original assignee: Shenzhen Qianhai Lejukang Information Technology Co Ltd
Current assignee: Shenzhen Qianhai Lejukang Information Technology Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-02-07
Anticipated expiration: 2039-10-29
Also published as: CN110755993B

Abstract

The invention provides an air passage structure and a corresponding oxygen generator, wherein the air passage structure comprises an outer shell, an inner shell, an air guide component and a fan component, wherein an air inlet hole is formed in the side surface of the outer shell, the inner shell is arranged in the outer shell, an air flow space is formed between the outer wall of the outer shell and the inner wall of the inner shell, the air flow space is divided into a flow guide air passage through a silencer component, an air inlet is formed in the inner shell, the air guide component is arranged outside the first outer shell, one end of an air guide cavity of the air guide component is communicated with the inner cavity of the inner shell, the other end of the air guide cavity is communicated with the outside, and the fan component is. According to the air passage structure, the inner shell is arranged in the outer shell, the air flow space is divided into the flow guide air passage through the silencer assembly, air channeling is prevented, noise is reduced, air is guided out through the air guide part, and the heat dissipation efficiency is high.

Description

Air flue structure and corresponding oxygen generator

Technical Field

The invention relates to the field of oxygen generators, in particular to an air passage structure and a corresponding oxygen generator.

Background

Oxygen is a substance necessary for people to live, and plays an important role in the aspects of medical first aid, rehabilitation and health care and the like, the oxygen generator is a machine for preparing oxygen by using an air separation technology, for example, the adsorption performance of a molecular sieve is adopted, meanwhile, air is pressed into the molecular sieve by using a compressor as power, so that nitrogen and oxygen in the air are separated to obtain oxygen, and the whole oxygen preparation process is a physical adsorption process, has no chemical reaction and has no pollution to the environment.

Wherein, the compressor of the oxygenerator among the prior art can the heat production in the course of the work, simultaneously because a lot of oxygenerators volumes do more and less, and the heat dissipation is not good for there is the temperature to rise easily, the problem that the product burns out easily, in addition, the oxygenerator is because the vibration of air current unstability and air compressor machine, makes there is the great problem of noise.

It is desirable to provide an airway structure to solve the above technical problems.

Disclosure of Invention

The invention provides an air passage structure, which is characterized in that an inner shell is arranged in an outer shell, an air flow space is divided into a flow guide air passage through a silencer component, air channeling is prevented, noise is reduced, air is guided out through an air guide part, and the heat dissipation efficiency is high, so that the problems of poor heat dissipation and high noise of an oxygen generator in the prior art are solved.

In order to solve the technical problems, the technical scheme of the invention is as follows: an airway structure, comprising:

the outer shell comprises a setting side surface, and an air inlet is arranged on the setting side surface;

the air inlet is communicated with the air flow space to input air, the inner shell is provided with an air inlet, and the air inlet is communicated with the air flow space and an inner cavity of the inner shell;

the air guide part is arranged outside the first shell and comprises a hollow air guide cavity, one end of the air guide cavity is communicated with the inner cavity of the inner shell, and the other end of the air guide cavity is communicated with the outside; and

and the fan assembly is arranged in the air guide cavity and used for accelerating the air to be led out.

In the invention, a silencing body assembly for absorbing noise and guiding air is arranged in the air flow space, and the silencing body assembly divides the air flow space into a plurality of guiding air passages communicating the air inlet holes and the air inlet holes, thereby avoiding air channeling.

In the invention, the outer shell and the inner shell are both in a square block shape, an outer shell opening is arranged on the bottom surface of the outer shell, an inner shell opening is arranged on the bottom surface of the inner shell, and the base seals the outer shell opening and the inner shell opening;

the two opposite side surfaces of the outer shell are the arrangement side surfaces, the other two side surfaces are common side surfaces, the air inlet holes are arranged on the two arrangement side surfaces, the space opposite to the arrangement side surfaces in the airflow space is a first space, the space opposite to the common side surfaces is a second space, and first silencing bodies for separating the two first spaces are arranged in the two second spaces;

the air inlet sets up the top of interior casing the sealed lid of making an uproar that falls that is provided with on the air inlet fall to be provided with the intercommunication air current space with the exhaust hole of the inner chamber of interior casing, it is cubic to fall to make an uproar the lid is rectangular shape fall to be close to all be provided with on two sides in first space the exhaust hole.

The first space is internally provided with a second silencing body, the second silencing body divides the first space into a first transfer space opposite to the exhaust hole, a second transfer space opposite to the air inlet hole, a first flow guide air passage on one side and a second flow guide air passage on the other side, two ends of the first flow guide air passage are respectively communicated with the first transfer space and the second transfer space, and two ends of the second flow guide air passage are respectively communicated with the first transfer space and the second transfer space.

In addition, fall the lid of making an uproar including setting up the groove, set up the groove with the air inlet is relative, the exhaust hole is close to the one end in first space is first port, the exhaust hole is close to the one end that sets up the groove is the second port, first port distributes fall on the lateral surface of making an uproar lid, the second port is located set up the inslot, just the second port orientation the air inlet.

Further, the air guide part comprises a first subsection and a second subsection, the first subsection is positioned on one side, away from the outer shell, of the base, and the second subsection is flatly arranged on the arrangement side face;

the fan assembly comprises an air guide fan and an exhaust fan, the air guide fan is arranged in the first subsection, the blowing direction of the air guide fan points to the second subsection, the exhaust fan is arranged at one end, far away from the first subsection, of the second subsection, the blowing direction of the exhaust fan deviates from the side face, an air guide opening is formed in the base, and the air guide opening is communicated with the inner cavity of the inner shell and the inner cavity of the first subsection.

Furthermore, silencing blocks are arranged on the inner wall surfaces of the air guide parts;

the first subsection and the base are of an integrally formed structure, a first mounting opening is formed in the first subsection, and a sealing plate used for sealing the first mounting opening is arranged on the air guide fan;

the second part comprises a frame body and a cover body, the frame body and the outer shell body are of an integrally formed structure, one surface, opposite to the side face, of the frame body is a second mounting opening, and the cover body is detachably connected to the second mounting opening in a sealing mode.

The invention also comprises an oxygen generator using the air passage structure, which further comprises:

the compressor is fixedly arranged in the inner shell and comprises a compression input port and a compression output port, and the compression input port is communicated with the inner cavity of the inner shell;

the molecular sieve comprises an oxygen generation input port, a first oxygen generation output port and a second oxygen generation output port, the oxygen generation input port is communicated with the compression output port, the first oxygen generation output port is used for outputting oxygen, and the second oxygen generation output port is communicated with the inner cavity of the inner shell to be used for outputting nitrogen;

the compressor is connected to the base, and the air inlet and the air guide port on the base are respectively located at the top and the bottom of the compressor.

The base is provided with a connecting groove, the connecting groove and the outer shell are positioned on the same side of the base, one end of the molecular sieve is connected in the connecting groove in a positioning mode, positioning grooves are formed in the periphery of the connecting groove, and a positioning convex part used for being connected with the positioning grooves in a positioning mode is arranged on the molecular sieve;

the periphery of the connecting groove is also provided with a connecting column, a threaded hole is formed in the connecting column, a convex column is arranged on the periphery of the molecular sieve, a through hole corresponding to the threaded hole is formed in the convex column, and a plurality of reinforcing rib plates are fixedly connected on the periphery of the connecting column.

Further, a transfer cavity is arranged on one side of the base, which is far away from the outer shell, and the second oxygen generation output port is communicated with the inner cavity of the inner shell through the transfer cavity;

be provided with the intercommunication on the base the inner chamber of interior casing with the first transfer hole in transfer chamber, and the intercommunication the spread groove with the second transfer hole in transfer chamber, the second system oxygen delivery outlet is located the molecular sieve is connected one end in the spread groove, makes and works as the one end of molecular sieve is connected during in the spread groove, the second system oxygen delivery outlet can with second transfer hole intercommunication.

In the invention, the compressor is fixedly connected to the base plate, the base is provided with a fixed column, the fixed column is connected with a spring, and the base plate is elastically connected to the base through the spring.

Compared with the prior art, the invention has the beneficial effects that: according to the air passage structure, the inner shell is arranged in the outer shell, the air flow space is divided into the flow guide air passage through the silencer assembly, air channeling is prevented, noise is reduced, air is guided out through the air guide part, and the heat dissipation efficiency is high.

Wherein, the function of amortization can be played to the amortization body subassembly, and the air of first water conservancy diversion air flue and second water conservancy diversion air flue water conservancy diversion simultaneously all can collect in the first transfer space relative with the exhaust hole for the air enters into interior casing fast, and is efficient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding to some embodiments of the present invention.

Fig. 1 is a schematic structural diagram of a preferred embodiment of the oxygen generator of the present invention.

Fig. 2 is a sectional view taken along a line X-X in fig. 1.

Fig. 3 is a schematic view of the air flow direction in the inner shell of the oxygen generator.

Fig. 4 is a schematic view of the air flow direction between the outer shell and the inner shell of the oxygen generator of the invention.

Fig. 5 is a schematic diagram of the explosion structure of the oxygen generator of the present invention.

Fig. 6 is a schematic cross-sectional structural view of the noise reduction cover of the oxygen generator of the present invention.

Fig. 7 is a schematic structural diagram of the noise reduction cover of the oxygen generator.

Fig. 8 is a bottom structure diagram of the base of the oxygen generator of the present invention.

FIG. 9 is a top view of the base of the oxygen generator of the present invention

FIG. 10 is a schematic diagram of the structure of the molecular sieve of the oxygen generator of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom" are used only with reference to the orientation of the drawings, and the directional terms are used for illustration and understanding of the present invention, and are not intended to limit the present invention.

The terms "first," "second," and the like in the terms of the invention are used for descriptive purposes only and not for purposes of indication or implication relative importance, nor as a limitation on the order of precedence.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The compressor of the oxygenerator among the prior art can produce heat in the course of the work, simultaneously because many oxygenerators volumes do more and less, and the heat dissipation is not good for there is the temperature to rise easily, the problem that the product burns out easily, in addition, the oxygenerator is because the vibration of air current unstability and air compressor machine, makes there is the great problem of noise.

The following is a preferred embodiment of the present invention, which can solve the above technical problems.

Referring to fig. 1 and 5, fig. 1 is a schematic structural diagram of a preferred embodiment of the oxygen generator of the present invention, and fig. 5 is a schematic structural diagram of an explosion of the oxygen generator of the present invention.

In the drawings, elements having similar structures are denoted by the same reference numerals.

The invention provides an oxygen generator which comprises an outer shell 12, an inner shell 14, an air guide part 17, a fan assembly, a compressor 16 and a molecular sieve 13.

Wherein, the outer casing 12 is including setting up side and ordinary side, is provided with the inlet port 121 on setting up the side, and in this embodiment, two relative sides of outer casing 12 are for setting up the side, and two other sides are ordinary sides, all are provided with the inlet port 121 on two sides that set up, and the front and the back as in fig. 1 are setting up the side, and the left side and the right side are ordinary sides.

The inner housing 14 is disposed in the outer housing 12, an air flow space 122 is formed between an outer wall of the outer housing 12 and an inner wall of the inner housing 14, the air inlet hole 121 communicates with the air flow space 122 to input air, an air inlet 141 is disposed on the inner housing 14, and the air inlet 141 communicates with the air flow space 122 and an inner cavity of the inner housing 14, so that air in the air flow space enters the inner housing 14.

The air guide member 17 is disposed outside the first casing and includes a hollow air guide chamber 171, one end of the air guide chamber 171 communicates with the inner cavity of the inner casing 14, and the other end communicates with the outside, so that the air in the inner casing 14 is discharged to achieve the heat dissipation effect.

The fan assembly is disposed in the air guide cavity 171 and is used for accelerating air to be guided out, and improving heat dissipation efficiency.

The compressor 16 is fixedly disposed within the inner housing 14 and includes a compression input port and a compression output port, the compression input port being in communication with the interior cavity of the inner housing 14 for drawing air for compression.

The molecular sieve 13 includes the input 131 that makes oxygen, first system oxygen delivery outlet 132 and second system oxygen delivery outlet 133, makes oxygen input 131 and compression delivery outlet intercommunication for the air after the compressor 16 can be discharged into the molecular sieve 13 in, first system oxygen delivery outlet 132 is used for exporting oxygen, and second system oxygen delivery outlet 133 and the inner chamber intercommunication of interior casing 14 are in order to be used for exporting nitrogen, makes can be discharged by air guide part 17 after nitrogen mixes with the air in the interior casing 14.

According to the oxygen generator, the inner shell 14 is sleeved in the outer shell 12 to form an airflow space, air flows through the airflow space, so that the effect of blowing and radiating can be achieved on the inner shell 14, meanwhile, the noise outflow of the compressor 16 can be weakened, the radiating effect is improved, and meanwhile, the noise is weakened;

on the other hand, the air guide member 17 also guides out the air in the inner casing 14 quickly, thereby further improving the heat dissipation effect.

In the present embodiment, the outer shell 12 and the inner shell 14 are both provided with a clearance hole for the air pipe to pass through, so that the compression output port of the compressor 16 can be connected with the oxygen production input port 131 through the air pipe, as shown in fig. 5, the clearance hole 123 on the outer shell 12 and the clearance hole 142 on the inner shell 14.

Referring to fig. 2, fig. 3 and fig. 4, wherein fig. 2 is a sectional view taken along the section line X-X in fig. 1, fig. 3 is a schematic view of the air flow direction in the inner shell of the oxygen generator of the present invention, and fig. 4 is a schematic view of the air flow direction between the outer shell and the inner shell of the oxygen generator of the present invention.

In this embodiment, be provided with the amortization body subassembly that is used for noise absorption and is used for the water conservancy diversion air in airflow space 122, the amortization body subassembly separates airflow space 122 for the water conservancy diversion air flue of a plurality of intercommunication inlet ports 121 and air inlet 141, can be smooth through the water conservancy diversion air flue with the outside air through technology inlet port 121 leading-in to interior casing in to avoid the air cross flow, reduce the noise that leads to because of the air current is unstable, improve circulation efficiency simultaneously, improve the radiating efficiency.

It should be noted that the silencing body assembly only needs to have the function of blocking the flow of gas, and the silencing body assembly can have air permeability, and the silencing body assembly can be made of sealing cotton materials and has the functions of silencing and guiding flow.

In this embodiment, the outer casing 12 and the inner casing 14 are both in a square block shape, an outer casing opening is provided on the bottom surface of the outer casing 12, an inner casing opening is provided on the bottom surface of the inner casing 14, and the base 11 closes the outer casing opening and the inner casing opening.

It should be noted that the square block-shaped inner housing 14 is more convenient for arranging the compressor, but the outer housing 12 and the inner housing 14 are not limited to the square block shape.

Specifically, referring to fig. 2 and 4, in the airflow space 122, the space opposite to the set side is a first space, that is, the airflow spaces at the left and right ends in the orientation of fig. 2 are first spaces, the space opposite to the common side is a second space, and a first sound deadening body 192 for separating the two first spaces is disposed in each of the two second spaces;

thereby make the air that the inlet port 121 of shell body 12 both sides got into can the one-to-one enter into corresponding first space in, can avoid leading to air current drunkenness, unstability from the air hedging that both sides got into, the air current unstability can lead to the circulation of air inefficiency, the problem of radiating efficiency low and easy noise production.

Referring to fig. 6 and 7, fig. 6 is a schematic cross-sectional structural view of a noise reduction cover of an oxygen generator of the present invention, and fig. 7 is a schematic structural view of the noise reduction cover of the oxygen generator of the present invention.

The air inlet 141 is arranged at the top of the inner shell 14, the noise reduction cover 15 is arranged on the air inlet 141 in a sealed mode, the noise reduction cover 15 is provided with air exhaust holes 152 which are communicated with the air flow space 122 and the inner cavity of the inner shell 14, the noise reduction cover 15 is in a strip-shaped block shape, the two side faces, close to the first space, of the noise reduction cover 15 are provided with the air exhaust holes 152, and the air exhaust holes 152 on the two side faces correspond to the first spaces on the two sides one to one.

Wherein, an extension plate 154 is provided on the periphery side of the noise reduction cover 15, a connection hole 1541 is provided on the extension plate 154, and a screw hole corresponding to the connection hole 1541 may be provided on the inner housing 14, so that a screw may pass through the connection hole 1541 and be fixedly connected with the screw hole, thereby fixedly mounting the noise reduction cover 15 to the inner housing 14.

Referring to fig. 4, a second muffler 191 is disposed in the first space, the second muffler 191 divides the first space into a first transfer space 1221 opposite to the air outlet 152, a second transfer space 1222 opposite to the air inlet 121, a first diversion air passage 1223 on one side, and a second diversion air passage 1224 on the other side, two ends of the first diversion air passage 1223 are respectively communicated with the first transfer space 1221 and the second transfer space 1222, and two ends of the second diversion air passage 1224 are respectively communicated with the first transfer space 1221 and the second transfer space 1222.

In fig. 4, both sides of the first muffler 192 are in contact with the inner wall surface of the outer housing 12 and the outer side surface of the inner housing 14, respectively, and both sides of the second muffler 191 are in contact with the inner wall surface of the outer housing 12 and the outer side surface of the inner housing 14, respectively.

After entering from the air inlet 121, the air first flows to the first transfer space 1221, and then re-dispersed to the second transfer space 1222 through the first diversion air passage 1223 and the second diversion air passage 1224, and the air guided by the first diversion air passage 1223 and the second diversion air passage 1224 is collected in the second transfer space 1222, so that the pressure is higher, and then the air can quickly enter the inner housing 14 from the air outlet 152, and the circulation efficiency is high.

Noise reduction lid 15 in this embodiment is including setting up groove 153, it is relative with air inlet 141 to set up groove 153, the one end that exhaust hole 152 is close to first space is first port 1521, the one end that exhaust hole 152 is close to setting up groove 153 is second port 1522, first port 1521 distributes on noise reduction lid 15's lateral surface, second port 1522 is located and sets up the groove 153, and second port 1522 is towards air inlet 141, make the air that gets into from exhaust hole 152 can be arranged to compressor 16 and air guide cavity 171, the air circulation efficiency is high, the heat dissipation is fast.

Preferably, a noise reduction member 151 may be disposed in the disposing groove 153 to reduce noise.

On the other hand, the compressor 16 in the present embodiment is fixedly connected to the base plate 161, the fixing post 116 is provided on the base 11, the spring 162 is connected to the fixing post 116, and the base plate 161 is elastically connected to the base 11 through the spring 162, so as to achieve the purpose of vibration reduction and noise reduction.

Referring to fig. 5 and 8, fig. 8 is a schematic bottom structure view of the base of the oxygen generator of the present invention.

In the present embodiment, the air guide 17 includes a first part 173 and a second part 174, the first part 173 is located on the side of the base 11 away from the outer casing 12, and the second part 174 is flatly disposed on the side of the outer casing 12, which can further enhance the heat dissipation efficiency of the outer casing 12.

The fan assembly comprises an air guide fan 181 and an exhaust fan 182, the air guide fan 181 is arranged in the first sub-portion 173, the blowing direction of the air guide fan 181 is directed to the second sub-portion 174, the exhaust fan 182 is arranged at one end of the second sub-portion 174 far away from the first sub-portion 173, the blowing direction of the exhaust fan 182 deviates from the arrangement side, and the air flow in the whole air channel structure can flow fast through the air guide fan 181 and the exhaust fan 182, so that the heat dissipation efficiency is high.

The base 11 is provided with an air guide opening 111, and the air guide opening 111 communicates the inner cavity of the inner housing 14 with the inner cavity of the first section 173.

Preferably, the noise-deadening blocks 172 are provided on the inner wall surfaces of the air guide member 17, so that noise discharged along with the air flow can be greatly reduced.

Preferably, the air inlet 141 and the air guide port 111 on the base 11 are respectively located at the top and the bottom of the compressor 16, and the compressor 16 is located in the middle of the air flow path, so that the blowing coverage of the air flow to the compressor 16 is large, and the heat dissipation effect is good.

In this embodiment, the first sub-portion 173 and the base 11 are integrally formed, the first sub-portion 173 is provided with a first mounting opening 1731, and the air guide fan 181 is provided with a sealing plate 1811 for sealing the first mounting opening 1731, that is, when the air guide fan 181 is mounted in the groove of the first sub-portion 173, the first mounting opening 1731 can be sealed, the heat dissipation effect is good, the structure is stable, and the assembly and disassembly are convenient.

Second subsection 174 includes framework 1741 and lid 1742, and framework 1741 and shell body 12 be integrated into one piece structure, and the one side relative with setting up the side on the framework 1741 is the second installing port, and lid 1742 detachable seals to be connected on the second installing port, and the radiating effect is good, stable in structure and easy dismounting.

When the outer case 12 and the base 11 are attached, the first unit 173 and the frame 1741 can be butted to each other, and the attachment and detachment are easy.

Referring to fig. 9 and fig. 10, wherein fig. 9 is a top structure diagram of a base of an oxygen generator of the present invention, and fig. 10 is a structure diagram of a molecular sieve of the oxygen generator of the present invention.

In this embodiment, a connecting groove 113 is provided on the base 11, the connecting groove 113 and the outer shell 12 are located on the same side of the base 11, and one end of the molecular sieve 13 is positioned and connected in the connecting groove 113, so that the connection is stable;

be provided with constant head tank 114 in the periphery of connecting groove 113, be provided with on molecular sieve 13 and be used for with constant head tank 114 location be connected location convex part 134, it is rotatory to prevent to connect back not hard up or the position, on the other hand also can set up the interval between a plurality of constant head tanks 114 through the difference, a plurality of location convex parts 134 set up to correspond uniquely with the position of a plurality of constant head tanks 114, avoid the anti-dress, further improve the convenience of installation.

Still be provided with spliced pole 115 at the periphery of connecting groove 113, be provided with the screw hole on spliced pole 115, be provided with projection 135 on the week side of molecular sieve 13, be provided with the through-hole that corresponds with the screw hole on projection 135, be connected with polylith deep floor 1151 at the week side fixed connection of spliced pole 115 for connection structure is reliable and stable.

Referring to fig. 8, a transfer chamber 112 is disposed on a side of the base 11 away from the outer shell 12, and the second oxygen generation output port 133 is communicated with the inner cavity of the inner shell 14 through the transfer chamber 112;

specifically, a first transfer hole 1122 for communicating the inner cavity of the inner housing 14 with the transfer cavity 112 and a second transfer hole 1123 for communicating the connecting groove 113 with the transfer cavity 112 are provided on the base 11, and the second oxygen generation output port 133 is located at one end of the molecular sieve 13 connected in the connecting groove 113, so that when one end of the molecular sieve 13 is connected in the connecting groove 113, the second oxygen generation output port 133 can be communicated with the second transfer hole 1123;

the second system oxygen delivery outlet 133 is through second transfer hole 1123, transfer chamber 112 and first transfer hole 1122 and the inner chamber intercommunication of interior casing, and then makes the nitrogen gas of making the output of second system oxygen delivery outlet 133 arrange to the inner chamber of interior casing 14, finally with the air mixing back, discharges through air guide cavity 171, simple structure is ingenious, and the part utilization rate is high.

The transfer cavity 112 in this embodiment is enclosed by a frame integrally formed on the base 11 and a cover plate 1121 closely connected to the frame.

The oxygen generator of the present invention forms an air flow space 122 between the outer case 12 and the inner case 14, and divides the air flow space into a first space and a second space by the first silencer 192, and divides the first space into a first guide air passage 1223, a second guide air passage 1224, a first transit space 1221 and a second transit space 1222 by the second silencer 191.

An air passage structure for air to enter and exit, which is formed by the air inlet hole 121, the first diversion air passage 1223, the second diversion air passage 1224, the first transfer space 1221, the second transfer space 1222, the air outlet hole 152, the air guide hole 111 and the air guide cavity 171;

meanwhile, an air passage structure for oxygen flowing after oxygen generation is formed by an input and output path of the compressor, an oxygen generation input port 131 and a first oxygen generation output port 132;

on the other hand, the input and output path of the compressor, the oxygen generation input port 131 and the second oxygen generation output port 133, the second relay hole 1123, the relay chamber 112 and the first relay hole 1122 form an air passage structure for flowing nitrogen after oxygen generation.

The working principle of the invention is as follows: as shown in FIGS. 3 and 4, the present invention can be understood by the schematic view of the air flow direction marked with letters, the air direction sequence being A → B → C → D → E;

the air enters the first transfer space 1221 from the air inlet 121, and then flows to the second transfer space 1222 through the first diversion air passage 1223 and the second diversion air passage 1224, and then is discharged into the inner housing 14 through the air outlet 152 on the noise reduction cover 15, a portion of the air is sucked by the compressor 16 to be compressed and flows towards the molecular sieve 13 to generate oxygen, another portion of the air enters the air guide cavity 171 from the air guide opening 111 under the driving of the air guide fan 181 and the air exhaust fan 182, and finally is discharged from the air outlet at the air exhaust fan 182, and meanwhile, heat is also discharged, so that the heat dissipation effect is achieved.

On the other hand, after receiving the air, the molecular sieve 13 adsorbs the nitrogen to separate oxygen, wherein the oxygen is output through the first oxygen generation output port 132 for the user to use, and the nitrogen is output through the second oxygen generation output port 133, and is discharged to the inner cavity of the inner housing 14 through the second relay hole 1123, the relay cavity 112 and the first relay hole 1122, and is finally mixed with the air and then discharged through the air guide cavity 171.

The air flow process of the oxygen generator of the preferred embodiment is as above.

The air flue structure of this preferred embodiment is through setting up interior casing in the shell to separate the air current space into water conservancy diversion air flue through the body subassembly of amortization, prevent the air cross flow, the noise abatement still derives the air through the air guide part simultaneously, and the radiating efficiency is high.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. An airway structure, comprising:

2. The air passage structure according to claim 1, wherein a silencer assembly for absorbing noise and guiding air is provided in the air flow space, the silencer assembly dividing the air flow space into a plurality of guiding air passages communicating the air inlet holes and the air inlet ports, thereby preventing air channeling.

3. The air flue structure according to claim 1, wherein the outer shell and the inner shell are both in a square block shape, an outer shell opening is arranged on the bottom surface of the outer shell, an inner shell opening is arranged on the bottom surface of the inner shell, and a base closes the outer shell opening and the inner shell opening;

4. The air passage structure according to claim 3, wherein a second silencing body is arranged in the first space, the second silencing body divides the first space into a first transfer space opposite to the exhaust hole, a second transfer space opposite to the air inlet hole, a first flow guide air passage on one side and a second flow guide air passage on the other side, two ends of the first flow guide air passage are respectively communicated with the first transfer space and the second transfer space, and two ends of the second flow guide air passage are respectively communicated with the first transfer space and the second transfer space.

5. The air passage structure according to claim 3, wherein the noise reduction cover comprises an arrangement groove, the arrangement groove is opposite to the air inlet, one end of the exhaust hole close to the first space is a first port, one end of the exhaust hole close to the arrangement groove is a second port, the first port is distributed on the outer side surface of the noise reduction cover, the second port is located in the arrangement groove, and the second port faces the air inlet.

6. The airway structure of claim 3, wherein the air guide comprises a first section and a second section, the first section is located on a side of the base away from the outer shell, and the second section is disposed flat against the disposition side;

7. The airway structure according to claim 6, wherein the inner wall surfaces of the air guide members are provided with noise reduction blocks;

8. An oxygen generator using the airway structure of any one of claims 1 to 7, further comprising:

9. The oxygen generator according to claim 8, wherein a connecting groove is provided on the base, the connecting groove and the outer shell are located on the same side of the base, one end of the molecular sieve is connected in the connecting groove in a positioning manner, a positioning groove is provided on the periphery of the connecting groove, and a positioning convex part for connecting with the positioning groove is provided on the molecular sieve;

10. The oxygen generator according to claim 9, wherein a transfer chamber is arranged on one side of the base far away from the outer shell, and the second oxygen generation output port is communicated with the inner cavity of the inner shell through the transfer chamber;