Fan fixing structure of oxygen generator and oxygen generator

Abstract

The utility model discloses an oxygenerator fan fixing structure and an oxygenerator, the fan fixing structure comprises: a fixing plate, which is provided with a through port matched with an air outlet of a fan; the support frame is used for fixing the fan on the fixing plate; the supporting frame is provided with a supporting part fixed to the draught fan and a fixing part which is bent along the lower end of the supporting part and extends in the direction away from the draught fan, and the fixing part is fixed to the fixing plate through a first fastener. And by arranging the supporting frame, the structural strength is improved, the firmness of the fan after being fixed is improved, noise is reduced, and the service life of the fan is guaranteed. The through hole is formed in the fixing plate, and the air outlet of the fan is located in the through hole, so that the air outlet of the fan is limited by the through hole, and the firmness of the fan after being fixed is improved; and the supporting frame is provided with the supporting part and the fixing part which is bent and extends outwards, so that the structural strength of the supporting frame is improved, and the supporting and fixing performance is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of oxygen generators, and particularly relates to a fan fixing structure of an oxygen generator and an oxygen generator with the fixing structure. Background Art

[0002] An oxygen generator is a device that can extract oxygen from the air. It is mainly applied in the medical field to provide high-purity oxygen for patients in need of additional oxygen supply. Molecular sieve oxygen generators are currently commonly used, and two molecular sieves respectively perform the same cyclic process to achieve continuous gas supply. The working process is as follows: Raw air is pressurized by a compressor, and then the processed compressed air enters the molecular sieve through an intake valve. In the molecular sieve, nitrogen, carbon dioxide, etc. are adsorbed, and the gas flowing out is high-purity oxygen.

[0003] When the compressor is used to compress a large amount of filtered air, the potential energy of the molecules in the compressed air is converted into kinetic energy, and the molecules move frequently and collide with each other to generate heat. If the generated heat cannot be discharged in time, it is likely to affect the service life of the oxygen generation equipment.

[0004] Currently, a fan is set to dissipate heat from the compressor to ensure the working environment of the compressor. The fan is generally fixed by setting a fixing flange on the fan and directly fixing it with screws. When the fan is working, it vibrates. In the case of long-term use, the screws often become loose, resulting in the fan not being firmly fixed; and it further aggravates the vibration of the fan, generates noise, and reduces the service life of the fan.

[0005] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Invention

[0006] In view of the above problems in the prior art, the utility model provides a fan fixing structure for an oxygen generator. By setting a support frame, it is beneficial to increase the structural strength, improve the firmness after the fan is fixed, reduce noise, and ensure the service life of the fan.

[0007] To achieve the above utility model purpose, the utility model adopts the following technical solutions:

[0008] A fan fixing structure for an oxygen generator, comprising:

[0009] A fixing plate, on which a through hole matching the air outlet of the fan is opened;

[0010] A support frame, which is used to fix the fan on the fixing plate;

[0011] The support frame has a support part fixed to the fan and a fixing part that is bent downward from the lower end of the support part and extends away from the fan. The fixing part is fixed to the fixing plate by a first fastener.

[0012] In some embodiments of the present application, the support part is fixedly provided on the outer side of the first end wall of the fan. The fan further has a second end wall opposite to the first end wall, and an air inlet of the fan is provided on the second end wall.

[0013] In some embodiments of the present application, the air outlet has a first air outlet edge coplanar with the first end wall and a second air outlet edge coplanar with the second end wall, and both the first air outlet edge and the second air outlet edge are located within the through opening.

[0014] In some embodiments of the present application, the support part is fixed to the first end wall by a second fastener.

[0015] In some embodiments of the present application, the support part is an L-shaped structure. The support part has a horizontally extending section and a vertically extending section. The length of the horizontally extending section is greater than the length of the fixing part, and a fixing part is provided at one end of the horizontally extending section close to the vertically extending section.

[0016] In some embodiments of the present application, an extension part protruding from the support part is provided at one end of the fixing part close to the vertically extending part.

[0017] In some embodiments of the present application, a fastening hole matching the first fastener is provided on the fixing part, and a fixing hole matching the first fastener is provided on the fixing plate.

[0018] In some embodiments of the present application, the support frame is a sheet metal part formed by integral stamping.

[0019] In some embodiments of the present application, a wind guiding structure for guiding the airflow blown out from the air outlet is further provided at the through opening. The wind guiding structure is located outside the air outlet, and the wind guiding structure is fixed to the fixing plate by the first fastener.

[0020] In some embodiments of the present application, the wind guiding structure is provided with a first fixing fold edge located between the fixing part and the fixing plate. A U-shaped groove matching the first fastener is provided on the first fixing fold edge, and the first fastener can move relatively within the U-shaped groove during installation for adjustment.

[0021] In some embodiments of the present application, the length of the first fixing fold edge is greater than the length of the fixing part.

[0022] In some embodiments of the present application, the air guiding structure has a first enclosing plate located outside the air outlet, a first air guiding plate extending downward along the first enclosing plate, and a first fixing flange extending and bending along the upper end of the first enclosing plate, and the first enclosing plate is located within the through opening.

[0023] Based on the above-mentioned fan fixing structure, the present application further provides an oxygen generator having the above-mentioned fan fixing structure. By providing a support frame, it is beneficial to increase the structural strength, improve the firmness after the fan is fixed, reduce noise, and ensure the service life of the fan.

[0024] An oxygen generator having the above-mentioned fan fixing structure.

[0025] Compared with the prior art, the advantages and positive effects of the present utility model are as follows: By providing a support frame, it is beneficial to increase the structural strength, improve the firmness after the fan is fixed, reduce noise, and ensure the service life of the fan. A through opening is provided on the fixing plate, and the air outlet of the fan is located within the through opening, so that the air outlet of the fan is limited by the through opening, which is beneficial to increasing the firmness after the fan is fixed; The support frame is provided with a support portion and a fixing portion extending and bending outward, which is beneficial to increasing the structural strength of the support frame and ensuring the support and fixing performance.

[0026] After reading the specific embodiments of the present utility model in conjunction with the accompanying drawings, other features and advantages of the present utility model will become clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] Figure 1 is a schematic structural diagram of an embodiment of a fan fixing structure of an oxygen generator proposed by the present utility model;

[0029] Figure 2 is Figure 1 a schematic cross-sectional structure diagram after removing the outer shell;

[0030] Figure 3 is Figure 2 an enlarged structural diagram of the fan part in ;

[0031] Figure 4 is Figure 3 an enlarged structural diagram of area A in ;

[0032] Figure 5 is a schematic diagram of the fan in an installed and fixed state;

[0033] Figure 6 is Figure 5 a schematic enlarged view of area B in

[0034] Figure 7 a schematic structural view of a blower

[0035] Figure 8 a schematic structural view of an air guiding structure

[0036] Figure 9 a schematic structural view of a support frame

[0037] Among them, oxygen generator 100;

[0038] housing 10;

[0039] blower 25; air inlet 251; air outlet 252; first air outlet edge 2521; second air outlet edge 2522; first end wall 255; second end wall 256;

[0040] air guiding structure 26; first enclosing plate 261; first air guiding plate 264; first fixed folding edge 267; U-shaped groove 2671;

[0041] support frame 27; support portion 271; horizontal extension section 2711; vertical extension section 2712; fixing portion 272; extension portion 2721; fastening hole 2722;

[0042] compressor chamber 30; fixing plate 33; through hole 331; fixing hole 332; compressor 35;

[0043] first fasteners 91; first fasteners 92. Specific embodiments

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0045] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the positional relationship shown in the drawings. The direction closer to the center of the component is "inner", and vice versa is "outer". The terms are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically and clearly defined.

[0046] In the present utility model, unless otherwise clearly specified and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0048] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials. Embodiment

[0049] See Figures 1-9 Figures 1-9 is an embodiment of the fan fixing structure of an oxygen generator proposed by the present utility model. The fan fixing structure of an oxygen generator 100 includes: a fixing plate 33 and a support frame 27. The fan 25 is fixed on the fixing plate 33, and a through hole 331 matching the air outlet 252 of the fan 25 is provided on the fixing plate 33; the support frame 27 is used to fix the fan 25 on the fixing plate 33. The support frame 27 has a support portion 271 fixed to the fan 25 and a fixing portion 272 extending downward along the lower end of the support portion 271 and bending away from the fan 25. The fixing portion 272 is fixed to the fixing plate 33 through a first fastener 91. By providing the support frame 27, it is beneficial to increase the structural strength, improve the firmness after the fan 25 is fixed, reduce noise, and ensure the service life of the fan 25. By providing the through hole 331 on the fixing plate 33 and the air outlet 252 of the fan 25 being located within the through hole 331, the air outlet 252 of the fan 25 is limited by the through hole 331, which is beneficial to increasing the firmness after the fan 25 is fixed; the support frame 27 is provided with a support portion 271 and a fixing portion 272 extending outward by bending, which is beneficial to increasing the structural strength of the support frame 27 and ensuring the support and fixing performance.

[0050] In this embodiment, see Figure 1 and Figure 2 As shown in and , the fan 25 is used to dissipate heat for the oxygen generator 100. The fan 25 is arranged in the heat dissipation air duct. The oxygen generator 100 has a housing 10. A compressor chamber 30 is provided inside the housing 10. A compressor 35 is located in the compressor chamber 30. The compressor 35 is the main heat-generating component in the oxygen generator 100. The airflow blown out from the air outlet 252 of the fan 25 blows onto the compressor 35. The fixing plate 33 serves as a wall of the compressor chamber 30. For the sake of structural compactness and the setting of the air duct flow direction, it is preferably set that the fixing plate 33 is the top wall, that is, the fan 25 is fixed on the top of the compressor chamber 30.

[0051] In some embodiments of the present application, see Figure 3 As shown in , the support portion 271 is fixedly arranged on the outside of the first end wall 255 of the fan 25. The fan 25 further has a second end wall 256 opposite to the first end wall 255, and an air inlet 251 of the fan 25 is provided on the second end wall 256. Setting the support portion 271 fixedly arranged on the first end wall 255 of the fan 25 is beneficial to increasing the stability after fixing and improving the support force for the fan 25.

[0052] In some embodiments of the present application, see Figures 3-4As shown, the air outlet 252 has a first air outlet edge 2521 disposed flush with the first end wall 255 and a second air outlet edge 2522 disposed flush with the second end wall 256. Both the first air outlet edge 2521 and the second air outlet edge 2522 are located within the through opening 331. Setting the end wall and the air outlet edge flush with each other is conducive to simplifying the structure of the fan housing, facilitating the installation of the air outlet 252 into the through opening 331, and ensuring the smoothness of the air path within the fan 25.

[0053] In some embodiments of the present application, referring to Figure 5 and Figure 6 As shown, the support portion 271 is fixed to the first end wall 255 by a second fastener 92. The support portion 271 has an L-shaped structure and includes a horizontally extending section 2711 and a vertically extending section 2712. The length of the horizontally extending section 2711 is greater than the length of the fixing portion 272, and a fixing portion 272 is provided at one end of the horizontally extending section 2711 close to the vertically extending section 2712; the vertically extending section 2712 is located at one end of the first end wall 255 close to the air outlet 252. The support portion 271 has an L-shaped structure, and the horizontally extending section 2711 and the vertically extending section 2712 are respectively fixed to the first end wall 255 by two second fasteners 92. When the fan 25 is operating, it is necessary to accelerate the air flow entering from the air inlet 251 and then discharge it. The air flow inside the fan 25 will exert a large impact force on the air outlet 252. A fixing portion 272 is provided at one end of the horizontally extending section 2711 close to the vertically extending section 2712; the vertically extending section 2712 is located at one end of the first end wall 255 close to the air outlet 252, ensuring the stability of the fan 25 after being fixed.

[0054] In some embodiments of the present application, an extension portion 2721 protruding from the support portion 271 is provided at one end of the fixing portion 272 close to the vertically extending portion 2712. A fastening hole 2722 matching the first fastener 91 is provided on the fixing portion 272, and a fixing hole 332 matching the first fastener 91 is provided on the fixing plate 33. The support frame 27 is fixed to the fixing plate 33 by the first fastener 91. The support frame 27 is a sheet metal part formed by integral stamping.

[0055] In some embodiments of the present application, a wind guiding structure 26 for guiding the air flow blown out from the air outlet 252 is further provided at the through opening 331. The wind guiding structure 26 is located outside the air outlet 252 and is fixed to the fixing plate 33 by the first fastener 91. By providing the wind guiding structure 26, the air flow blown out from the air outlet 252 is guided, and the air flow is directly guided to the components that need to be cooled, improving the cooling effect.

[0056] In some embodiments of the present application, the air guiding structure 26 is provided with a first fixing hem 267 located between the fixing portion 272 and the fixing plate 33. A U-shaped groove 2671 matching the first fastener 91 is formed in the first fixing hem 267. When installed, the first fastener 91 can move relatively within the U-shaped groove 2671 for adjustment. By providing the U-shaped groove 2671, the first fixing hem 267 can move in a direction close to or away from the air outlet 252, ensuring that the first shroud 261 fits against the outside of the air outlet 252, and at the same time ensuring that the fastener 91 can pass through the U-shaped groove 2671 to achieve fixation. And compared with forming a circular fastening hole in the first fixing hem 267, setting the U-shaped groove 2671 is beneficial to improving the positioning and alignment operation efficiency during the fixation of the air guiding structure 26 and improving the fixation efficiency. The length of the first fixing hem 267 is greater than the length of the fixing portion 272.

[0057] In some embodiments of the present application, as shown in Figure 8 , the air guiding structure 26 has a first shroud 261 located outside the air outlet 252, a first air guiding plate 164 extending downward along the first shroud 261, and a first fixing hem 267 bent and extended along the upper end of the first shroud 261. The first shroud 261 is located within the through hole 331. By providing the first air guiding plate 264, the air flow near the first air guiding plate 264 blown out from the air outlet 252 can only flow downward along the first air guiding plate 264, reducing the circumferential outward diffusion. And the first air guiding plate 264 is inclined, which is beneficial to realizing the concentration of the downward air flow, enabling a larger air volume to blow onto the components that need to be cooled by heat dissipation and taking away more heat. Embodiment

[0058] As shown in Figures 1-9 , it is an embodiment of an oxygen generator proposed by the present utility model. An oxygen generator 100 has the above-mentioned fan fixing structure. By providing the support frame 27, it is beneficial to increase the structural strength, improve the firmness after the fan is fixed, reduce noise, and ensure the service life of the fan.

[0059] In this embodiment, the fan fixing structure includes: a fixing plate 33 and a support frame 27. The fan 25 is fixed on the fixing plate 33, and a through hole 331 matching the air outlet 252 of the fan 25 is formed in the fixing plate 33; the support frame 27 is used to fix the fan 25 on the fixing plate 33. The support frame 27 has a supporting portion 271 fixed to the fan 25 and a fixing portion 272 extending in a direction away from the fan 25 by bending downward along the lower end of the supporting portion 271. The fixing portion 272 is fixed to the fixing plate 33 by a first fastener 91. By providing the support frame 27, it is beneficial to increase the structural strength, improve the firmness after the fan 25 is fixed, reduce noise, and ensure the service life of the fan 25. The through hole 331 is formed in the fixing plate 33, and the air outlet 252 of the fan 25 is located in the through hole 331, so that the air outlet 252 of the fan 25 is defined by the through hole 331, which is beneficial to increase the firmness after the fan 25 is fixed; the support frame 27 has a supporting portion 271 and a fixing portion 272 extending outward by bending, which is beneficial to increase the structural strength of the support frame 27 and ensure the support and fixing performance.

[0060] In this embodiment, the fan 25 is used to dissipate heat for the oxygen generator 100. The fan 25 is arranged in the heat dissipation air duct. The oxygen generator 100 has a housing 10. A compressor chamber 30 is provided in the housing 10. The compressor 35 is located in the compressor chamber 30. The compressor 35 is the main heat generating component in the oxygen generator 100. The air flow blown out from the air outlet 252 of the fan 25 blows onto the compressor 35. The fixing plate 33 serves as a wall of the compressor chamber 30. For the sake of structural compactness and the setting of the air duct flow direction, it is preferably set that the fixing plate 33 is the top wall, that is, the fan 25 is fixed on the top of the compressor chamber 30.

[0061] In some embodiments of the present application, the supporting portion 271 is fixedly arranged on the outer side of the first end wall 255 of the fan 25. The fan 25 further has a second end wall 256 opposite to the first end wall 255, and an air inlet 251 of the fan 25 is formed in the second end wall 256. Arranging the supporting portion 271 fixedly on the first end wall 255 of the fan 25 is beneficial to increase the stability after fixation and improve the supporting force for the fan 25.

[0062] In some embodiments of the present application, the air outlet 252 has a first air outlet edge 2521 arranged on the same plane as the first end wall 255 and a second air outlet edge 2522 arranged on the same plane as the second end wall 256. Both the first air outlet edge 2521 and the second air outlet edge 2522 are located in the through hole 331. Arranging the end wall and the air outlet edge on the same plane is beneficial to simplify the structure of the fan housing, and is beneficial to installing the air outlet 252 into the through hole 331 and to the smoothness of the air path in the fan 25.

[0063] In some embodiments of the present application, the support portion 271 is fixed to the first end wall 255 by the second fastener 92. The support portion 271 has an L-shaped structure. The support portion 271 has a horizontally extending section 2711 and a vertically extending section 2712. The length of the horizontally extending section 2711 is greater than the length of the fixing portion 272. A fixing portion 272 is provided at one end of the horizontally extending section 2711 close to the vertically extending section 2712. The vertically extending section 2712 is located at one end of the first end wall 255 close to the air outlet 252. The support portion 271 has an L-shaped structure. The fixing of the horizontally extending section 2711 and the vertically extending section 2712 to the first end wall 255 is respectively achieved by two second fasteners 92. When the fan 25 is operating, it is necessary to accelerate the airflow entering from the air inlet 251 and then eject it. The airflow inside the fan 25 will give a large impact force at the air outlet 252. A fixing portion 272 is provided at one end of the horizontally extending section 2711 close to the vertically extending section 2712. The vertically extending section 2712 is located at one end of the first end wall 255 close to the air outlet 252, ensuring the stability of the fan 25 after fixation.

[0064] In some embodiments of the present application, an extension portion 2721 protruding from the support portion 271 is provided at one end of the fixing portion 272 close to the vertically extending portion 2712. A fastening hole 2722 matching the first fastener 91 is provided on the fixing portion 272, and a fixing hole 332 matching the first fastener 91 is provided on the fixing plate 33. The support frame 27 is fixed to the fixing plate 33 by the first fastener 91. The support frame 27 is a sheet metal part formed by integral stamping.

[0065] In some embodiments of the present application, a wind guiding structure 26 for guiding the airflow blown out from the air outlet 252 is further provided at the through hole 331. The wind guiding structure 26 is located outside the air outlet 252. The wind guiding structure 26 is fixed to the fixing plate 33 by the first fastener 91. By providing the wind guiding structure 26, the airflow blown out from the air outlet 252 is guided, and the airflow is directly guided to the components that need to be cooled, improving the cooling effect.

[0066] In some embodiments of the present application, the air guiding structure 26 is provided with a first fixing flange 267 located between the fixing portion 272 and the fixing plate 33. A U-shaped groove 2671 matching the first fastener 91 is formed in the first fixing flange 267. When installed, the first fastener 91 can move relatively within the U-shaped groove 2671 for adjustment. By providing the U-shaped groove 2671, the first fixing flange 267 can move in a direction close to or away from the air outlet 252, ensuring that the first shroud 261 fits against the outside of the air outlet 252. At the same time, it ensures that the fastener 91 can pass through the U-shaped groove 2671 to achieve fixation. And compared with forming a circular fastening hole in the first fixing flange 267, setting the U-shaped groove 2671 is beneficial to improving the positioning and alignment operation efficiency during the fixation of the air guiding structure 26 and enhancing the fixation efficiency. The length of the first fixing flange 267 is greater than the length of the fixing portion 272.

[0067] In some embodiments of the present application, the air guiding structure 26 has a first shroud 261 located outside the air outlet 252, a first air guiding plate 164 extending downward along the first shroud 261, and a first fixing flange 267 extending by bending along the upper end of the first shroud 261. The first shroud 261 is located within the through hole 331. By providing the first air guiding plate 264, the air flow near the first air guiding plate 264 blown out from the air outlet 252 can only flow downward along the first air guiding plate 264, reducing the circumferential outward diffusion. And the first air guiding plate 264 is inclined, which is beneficial to achieving the concentration of the downward air flow, enabling a larger air volume to be blown onto the components that need to be cooled by heat dissipation and taking away more heat.

[0068] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. However, such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions required to be protected by the present invention.

Claims

1. A fan fixing structure of an oxygen generator, characterized in that, Comprising: A fixed plate, on which a through hole matching the air outlet of the fan is provided; A support frame, which is used to fix the fan on the fixed plate; The support frame has a support portion fixed to the fan and a fixing portion extending in a direction away from the fan by bending downward at the lower end of the support portion, and the fixing portion is fixed to the fixed plate by a first fastener.

2. The fan fixing structure according to claim 1, characterized in that, The support portion is fixedly provided on the outside of the first end wall of the fan, and the fan further has a second end wall opposite to the first end wall, and an air inlet of the fan is provided on the second end wall.

3. The blower fixing structure according to claim 2, characterized in that, The air outlet has a first air outlet edge arranged in the same plane as the first end wall and a second air outlet edge arranged in the same plane as the second end wall, and both the first air outlet edge and the second air outlet edge are located in the through hole.

4. The fan fixing structure according to claim 1, wherein The support portion is an L-shaped structure, the support portion has a horizontally extending section and a vertically extending section, the length of the horizontally extending section is greater than the length of the fixing portion, and a fixing portion is provided at one end of the horizontally extending section close to the vertically extending section.

5. The blower fixing structure according to claim 4, wherein, One end of the fixing portion close to the vertically extending portion is provided with an extension portion protruding from the support portion.

6. The fan fixing structure according to claim 1, wherein, A fastening hole matching the first fastener is provided on the fixing portion, and a fixing hole matching the first fastener is provided on the fixed plate.

7. The blower fixing structure according to any one of claims 1 to 6, characterized in that, A wind guiding structure for guiding the airflow blown out from the air outlet is further provided at the through hole, the wind guiding structure is located outside the air outlet, and the wind guiding structure is fixed to the fixed plate by the first fastener.

8. The blower fixing structure according to claim 7, wherein The wind guiding structure is provided with a first fixing fold edge located between the fixing portion and the fixed plate, and a U-shaped groove matching the first fastener is provided on the first fixing fold edge, and the first fastener can move relatively in the U-shaped groove during installation for adjustment.

9. The blower fixing structure according to claim 8, characterized in that, The length of the first fixing fold edge is greater than the length of the fixing portion.

10. An oxygen generator, characterized in that, Having the fan fixing structure according to any one of claims 1 to 9.

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