Air compressor and portable oxygen generator

Abstract

The embodiment of the invention provides an air compressor and a portable oxygenerator, and the air compressor comprises a housing which forms an accommodation space; the air compressor assembly is arranged in the accommodating space; the vibration reduction assembly is arranged in the containing space, the vibration reduction assembly comprises a first vibration reduction part arranged on at least one side of the two axial sides of the air compressor assembly and a plurality of second vibration reduction parts arranged in the circumferential direction of the air compressor assembly, the first vibration reduction part absorbs vibration in the axial direction of the air compressor assembly, and the second vibration reduction parts absorb vibration in the axial direction of the air compressor assembly. The second vibration reduction part absorbs vibration in the radial direction of the air compressor assembly. Therefore, the vibration reduction structures are arranged in the axial direction and the radial direction of the air compressor assembly, vibration generated when the air compressor assembly works can be fully absorbed, and vibration and noise transmitted to the outside are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of oxygen production, and in particular to an air compressor and a portable oxygen concentrator. Background Art

[0002] Air compressors are widely used. For example, they can be used in oxygen generators, air conditioners, and as a power source.

[0003] With the rapid development of portable oxygen concentrators, the demand for air compressors has also increased. Portable oxygen concentrators typically use the principle of pressure swing adsorption (PSA) to separate nitrogen and oxygen in the air within the oxygen concentrator chamber, producing oxygen-enriched gas. The oxygen-enriched gas is then piped out of the chamber for use. Portable oxygen concentrators have the advantages of being small, light, and easy to carry.

[0004] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art. Summary of the Invention

[0005] The inventors have discovered that in a portable oxygen concentrator, the air compressor inevitably generates vibration and noise when operating. These vibration and noise are transmitted to the outside through the outer shell, causing a poor user experience.

[0006] In order to solve at least one of the above problems or other similar problems, the embodiments of the present application provide an air compressor and a portable oxygen concentrator to reduce vibration and noise transmitted to the outside and improve the user experience.

[0007] A first aspect of an embodiment of the present application provides an air compressor, comprising:

[0008] a housing forming a receiving space;

[0009] an air compressor assembly, which is disposed in the accommodation space;

[0010] A vibration damping assembly is arranged in the accommodating space, and includes a first vibration damping portion arranged on at least one of the axial sides of the air compressor assembly and a plurality of second vibration damping portions arranged in the circumferential direction of the air compressor assembly, wherein the first vibration damping portion absorbs the axial vibration of the air compressor assembly, and the second vibration damping portion absorbs the radial vibration of the air compressor assembly.

[0011] A second aspect of the embodiments of the present application provides a portable oxygen concentrator, which includes the air compressor described in the embodiment of the first aspect.

[0012] One of the beneficial effects of the embodiment of the present application is that by providing a vibration-damping structure in both the axial and radial directions of the air compressor assembly, the vibration of the air compressor assembly during operation can be fully absorbed, thereby reducing the vibration and noise transmitted to the outside.

[0013] With reference to the following description and drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope thereby. Within the scope of the terms of the appended claims, the embodiments of the present application include many variations, modifications, and equivalents.

[0014] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0015] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.

[0017] The included drawings are used to provide a further understanding of the embodiments of the present application, constitute a part of the specification, and are used to illustrate the implementation methods of the present application and, together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0018] In the attached figure:

[0019] Figure 1 is a three-dimensional diagram of an air compressor according to an embodiment of the present application;

[0020] Figure 2 This is a three-dimensional diagram of the air compressor of the embodiment of the present application after the shell is hidden

[0021] Figure 3 is a perspective view of an implementation of a first vibration damping portion of an embodiment of the present application;

[0022] Figure 4 yes Figure 2A partial enlarged view of the region R in FIG;

[0023] Figure 5 is a perspective view of another embodiment of the first vibration damping portion of the present application;

[0024] Figure 6 is a perspective view of another embodiment of the first vibration damping portion of the present application;

[0025] Figure 7 yes Figure 6 An exploded view of the first vibration damping portion shown;

[0026] Figure 8 is a perspective view of another embodiment of the first vibration damping portion of the present application;

[0027] Figure 9 is a perspective view of another embodiment of the first vibration damping portion of the present application;

[0028] Figure 10 It is a three-dimensional diagram of the portable oxygen concentrator according to an embodiment of the present application.

[0029] Tag Name

[0030] 1: Air compressor;

[0031] 10: Shell;

[0032] 1000: Portable oxygen concentrator;

[0033] 2: Oxygen production unit;

[0034] 20: Air compressor components;

[0035] 20a: surface;

[0036] 213: First base;

[0037] 30: vibration damping assembly;

[0038] 301: heat dissipation hole;

[0039] 30a: rubber column;

[0040] 30b: rubber column;

[0041] 310: first vibration damping part;

[0042] 310': first vibration damping part;

[0043] 311: lower damping plate;

[0044] 312: upper damping plate;

[0045] 313: First base;

[0046] 314: Second base;

[0047] 315: transmission unit;

[0048] 315': transmission unit;

[0049] 316: first magnetic body;

[0050] 316': first magnetic body;

[0051] 3161: wire;

[0052] 317: second magnetic body;

[0053] 317': second magnetic body;

[0054] 3171: wire;

[0055] 320: second vibration damping unit;

[0056] 351: first magnetic pole;

[0057] 352: second magnetic pole;

[0058] 353: sleeve;

[0059] 40: cooling fan;

[0060] 401: air inlet;

[0061] OO: central axis;

[0062] S: Accommodation space. DETAILED DESCRIPTION

[0063] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the specification and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which show some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0064] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0065] In the embodiments of this application, the singular forms "a," "the," etc. may include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.

[0066] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0067] The embodiment of the present application provides an air compressor, Figure 1 This is a three-dimensional diagram of the air compressor according to the embodiment of the present application. Figure 2 This is a three-dimensional diagram of the air compressor of an embodiment of the present application with the outer shell hidden.

[0068] like Figure 1 As shown, the air compressor 1 includes a housing 10, an air compressor assembly 20, and a vibration reduction assembly 30. The housing 10 forms a receiving space S, and the air compressor assembly 20 and the vibration reduction assembly 30 are disposed in the receiving space S. The air compressor assembly 20 may include a motor, a compression cylinder, etc. The embodiment of the present application does not limit the specific structure of the air compressor assembly 20, and reference may be made to related art.

[0069] like Figure 2 As shown, the vibration damping assembly 30 includes a first vibration damping part 310 and a second vibration damping part 320. The first vibration damping part 310 can be arranged on one or both axial sides of the air compressor assembly 20 to absorb the axial vibration of the air compressor assembly 20. The second vibration damping part 320 can be multiple and is arranged in the circumferential direction of the air compressor assembly 20 to absorb the radial vibration of the air compressor assembly 20.

[0070] Therefore, by providing the vibration-damping structures in both the axial and radial directions of the air compressor assembly, the vibration of the air compressor assembly during operation can be fully absorbed, thereby reducing the vibration and noise transmitted to the outside.

[0071] In the embodiment of the present application, unless otherwise specified, the direction along the central axis OO of the compression cylinder of the air compressor assembly 20 or the direction parallel to the central axis OO is referred to as "axial", the radial direction centered on the central axis OO is referred to as "radial", the direction radially away from the central axis OO is referred to as "radial outer side", the direction radially close to the central axis OO is referred to as "radial inner side", and the circumferential direction centered on the central axis OO is referred to as "circumferential direction". In addition, for the convenience of explanation, Figure 1 The direction from bottom to top in the figures shown is called "up". Figure 1The direction from top to bottom in the drawings is referred to as "bottom," the surface located above is referred to as the "upper surface," and the surface located below is referred to as the "lower surface." Those skilled in the art will understand that the terms "upper" and "lower" used in the embodiments of this application are merely used to distinguish between different elements, and do not indicate the spatial arrangement of these elements.

[0072] In some embodiments, as Figure 2 As shown, the plurality of second vibration damping parts 320 are evenly distributed in the circumferential direction of the air compressor assembly 20. Thus, the vibration in the radial direction of the air compressor assembly 20 is evenly absorbed. Figure 2 As shown, the plurality of second vibration damping parts 320 may be vibration damping springs, thereby absorbing vibrations without affecting the heat dissipation of the air compressor assembly 20 .

[0073] in addition, Figure 2 While four second vibration dampers 320 are shown, this embodiment of the present application does not limit the number of second vibration dampers 320 and any number may be provided as needed. Furthermore, the multiple second vibration dampers 320 may be located at the same or different axial heights. The axial positions of the multiple second vibration dampers 320 can be adjusted based on the center of gravity of the air compressor assembly 20 and the vibration conditions, so that the vibration at the center of gravity of the air compressor assembly 20 can quickly approach zero.

[0074] In some embodiments, the damping of the first vibration damping portion 310 is greater than that of the second vibration damping portion 320. Thus, the first vibration damping portion 310 rapidly attenuates the axial vibration of the air compressor assembly 20, thereby facilitating the second vibration damping portion 320 to rapidly absorb the radial vibration of the air compressor assembly 20.

[0075] In some embodiments, as Figure 1 and Figure 2 As shown, the first vibration damping portion 310 may include a lower vibration damping plate 311 located axially below the air compressor assembly 20, and may also include an upper vibration damping plate 312 located axially above the air compressor assembly 20. The lower vibration damping plate 311 and the upper vibration damping plate 312 may have the same structure or different structures, which is not limited in this embodiment of the present application.

[0076] Alternatively, the decision to use the same structure for the lower damping plate 311 and the upper damping plate 312 can be made based on the angle between the axial direction of the air compressor assembly 20 and the direction of gravity during actual operation. For example, if the axial direction of the air compressor assembly 20 is approximately parallel to the direction of gravity during actual operation, the lower damping plate 311 and the upper damping plate 312 can be configured with different structures to reduce the impact of gravity on the vibration absorption of the damping portion of the air compressor assembly 20. Alternatively, if the axial direction of the air compressor assembly 20 is approximately perpendicular to the direction of gravity during actual operation, the lower damping plate 311 and the upper damping plate 312 can be configured with the same structure to reduce production costs.

[0077] In some embodiments, the first vibration damping portion 310 can be formed of a rubber material. Rubber is composed of a variety of materials, and the same shape can have different properties through material adjustment. The friction between the rubber's internal molecules gives it a certain damping property, namely, hysteresis in motion (the deformation of the rubber lags behind the stress on the rubber during force application). In addition, rubber produces different elastic coefficients during compression, shear, and tension. Therefore, the rubber material and shape can be adjusted based on vibration data such as the vibration frequency and amplitude of the air compressor assembly 20 during actual operation, thereby maximizing the vibration attenuation rate of the air compressor assembly 20.

[0078] Figure 3 is a perspective view of an embodiment of the first vibration damping part of the present application. Figure 4 yes Figure 2 A partial enlarged view of region R in Figure 5 It is a three-dimensional diagram of another embodiment of the first vibration damping part of the embodiment of the present application.

[0079] In some embodiments, as Figure 3 and Figure 5 As shown, the first vibration damping part 310 may be a rubber column array, which is formed by a plurality of rubber columns. The rubber column array is used to absorb the axial vibration of the air compressor assembly 20 .

[0080] For example, Figure 3 As shown, the lower vibration damping plate 311 includes a rubber column array consisting of multiple rubber columns 30a. In addition, the rubber column array can include rubber columns of different heights (also called "axial dimensions"), for example, Figure 4As shown, the height of the rubber column 30a can be set based on the surface 20a on the axial lower side of the air compressor assembly 20, so that the top of the rubber column abutting the surface 20a is in contact with the surface 20a, thereby further fully absorbing the axial vibration of the air compressor assembly 20. For example, during actual operation, when the axial direction of the air compressor assembly 20 is roughly parallel to the direction of gravity, the lower vibration damping plate 311 bears the weight of the air compressor assembly 20 because gravity is downward. The multi-array structure increases the contact surface and thus the force-bearing area, which prevents the rubber from being compacted and ensures the vibration reduction effect.

[0081] In addition, in the rubber column array, the longer the axial dimension of the rubber column 30a, the larger its radial dimension, that is, the longer the rubber column 30a, the thicker it is. As a result, the static stiffness of all rubber columns in the rubber column array is roughly the same, and the axial vibration of the air compressor assembly 20 can be evenly absorbed.

[0082] In addition, the upper damping plate 312 may also include a rubber column array composed of rubber columns of different heights, so that the top of the rubber column abutting the axial upper surface of the air compressor assembly 20 is in contact with the axial upper surface of the air compressor assembly 20. In addition, the heights of the rubber columns in the rubber column array of the upper damping plate 312 may also be the same. For example, Figure 5 As shown, the upper vibration damping plate 312 includes a plurality of rubber columns 30b forming a rubber column array. Figure 5 The rubber column array shown is Figure 3 The rubber column array shown is also different in that Figure 5 The radial dimension of the rubber column array shown is larger than its axial dimension, that is, a plurality of rubber grooves are formed between the rubber strips, thereby allowing the rubber strips to vibrate slightly, which is beneficial for absorbing and consuming energy as quickly as possible.

[0083] Figure 6 is a perspective view of another embodiment of the first vibration damping part of the embodiment of the present application, Figure 7 yes Figure 6 The exploded view of the first vibration damping part is shown. Figure 8 It is a three-dimensional diagram of another embodiment of the first vibration damping part of the embodiment of the present application.

[0084] In some embodiments, the first vibration damping portion 310 may also be a magnetic vibration damping base. Figure 6 As shown, the first vibration damping part 310 includes a first base 313, a second base 314 and a transmission part 315. The first base 313 is used to support the air compressor assembly 20 in the axial direction ( Figure 6The second base 314 is opposite to the first base 313, and the transmission part 315 is used to transmit the interaction force between the first base 313 and the second base 314. The first base 313 is suspended in the accommodation space S ( Figure 6 In the embodiment (not shown), the first base 313 is suspended by the magnetic suspension principle. Detailed description is given below.

[0085] like Figure 7 As shown, a first magnetic body 316 is suspended on a side of the first base 313 opposite to the second base 314, and a second magnetic body 317 is suspended on a side of the second base 314 opposite to the first base 313. Figure 6 As shown, the first magnetic body 316 and the second magnetic body 317 are axially opposite to each other, and the second magnetic body 317 is closer to the first base 313 than the first magnetic body 316. The direction of the magnetic force applied by the second magnetic body 317 to the first magnetic body 316 is the same as the direction of the force transmitted by the transmission part 315 to the second base 314.

[0086] For example, the first magnetic body 316 and the second magnetic body 317 can be magnets of opposite polarity. Figure 6 As shown, the magnetic force exerted by the second magnetic body 317 on the first magnetic body 316 is an upward attraction, causing the first base 313 to move upward relative to the second base 314, thereby transmitting an upward pulling force to the second base 314 through the transmission unit 315. Conversely, the magnetic force exerted by the first magnetic body 316 on the second magnetic body 317 is a downward attraction, causing the second base 314 to move downward relative to the first base 313, thereby transmitting a downward pulling force to the first base 313 through the transmission unit 315. By maintaining balance between the upward force exerted by the second magnetic body 317 through the first magnetic body 316 and the downward force exerted by the transmission unit 315, the first base 313 is suspended in the air. Thus, the air compressor assembly 20 is suspended within the housing 10 via the first base 313, thereby isolating the air compressor assembly 20 from being transmitted to the housing 10.

[0087] In the above example, the transmission part 315 may be a rope connecting the first base 313 and the second base 314 , and the rope may be rigid, flexible, or elastic.

[0088] in addition, Figure 8 The first vibration damping part 310' and Figure 6 One difference between the first vibration damping part 310 and the first vibration damping part 310 is that the structure of the transmission part 315 is different, such as Figure 8As shown, the transmission part 315' includes a first magnetic pole 351 arranged on the first base 313 and a second magnetic pole 352 arranged on the second base 314. In addition, a sleeve 353 can be provided to limit the first magnetic pole 351 and the second magnetic pole 352, so that the first magnetic pole 351 and the second magnetic pole 352 can only move in the axial direction and not in the radial direction, thereby ensuring the structural stability of the transmission part.

[0089] In the above example, the first magnetic pole 351 and the second magnetic pole 352 can be set as opposite magnetic poles, so that the transmission part 315' can also achieve a function similar to that of a rope. Figure 8 As shown, there is a gap between the first magnetic pole 351 and the second magnetic pole 352 in the axial direction, that is, the first magnetic pole 351 and the second magnetic pole 352 are not in direct contact, thereby further isolating the vibration from being transmitted from the first base 313 to the second base 314.

[0090] For another example, the first magnetic body 316 and the second magnetic body 317 can be magnets of the same polarity. Figure 8 As shown, the magnetic force exerted by the second magnetic body 317 on the first magnetic body 316 is a downward repulsive force, causing the first base 313 to move downward relative to the second base 314, thereby transmitting a downward thrust to the second base 314 through the transmission unit 315'. Conversely, the magnetic force exerted by the first magnetic body 316 on the second magnetic body 317 is an upward repulsive force, causing the second base 314 to move upward relative to the first base 313, thereby transmitting an upward thrust to the first base 313 through the transmission unit 315'. By maintaining balance between the downward force exerted by the second magnetic body 317 through the first magnetic body 316 and the upward force exerted by the transmission unit 315', the first base 313 is suspended in the air. Thus, the air compressor assembly 20 is suspended within the housing 10 via the first base 313, thereby isolating the air compressor assembly 20 from being transmitted to the housing 10.

[0091] In the above example, the first magnetic pole 351 (i.e., the third magnetic pole) and the second magnetic pole 352 (i.e., the fourth magnetic pole) of the transmission part 315' are like magnetic poles, so that the first base 313 can be subjected to an upward force through the first magnetic pole 351 to balance the downward force from the second magnetic body 317 through the first magnetic body 316.

[0092] In the embodiment of the present application, the magnetic force between the first magnetic body 316 and the second magnetic body 317 is related to the magnetic force between the first magnetic pole 351 and the second magnetic pole 352, the gravity of the air compressor assembly 20, the gravity of the first base 313 itself, etc. The specific setting can refer to the relevant technology, and the embodiment of the present application does not limit this.

[0093] In addition, if Figure 6 and Figure 8 As shown, the magnetic flux area of ​​the second magnetic body 317 can be set to be larger than the magnetic flux area of ​​the first magnetic body 316, thereby ensuring that the first magnetic body 316 does not exceed the range of the magnetic force of the second magnetic body 317 when moving, thereby ensuring the stability of the structure of the first vibration damping part.

[0094] In the embodiments of this application, Figure 6 and Figure 8 As shown, the first magnetic body 316 is arranged below the center of the first base 313 through an arched support beam, thereby ensuring that the first base 213 is subjected to uniform and concentrated force and the center of gravity is centered; the second magnetic body 317 is arranged above the center of the second base 314 through a cantilever beam, that is, it is located on the gravity center axis of the entire structure, playing a supporting role. In addition, the fixing methods of the first magnetic body 316 and the second magnetic body 317 can also be interchangeable. For example, the first magnetic body 316 can be arranged below the center of the first base 313 through a cantilever beam, and the second magnetic body 317 can be arranged above the center of the second base 314 through an arched support beam. Alternatively, both the first magnetic body 316 and the second magnetic body 317 can be fixed to the corresponding base through the arched support beam. The embodiment of the present application does not limit the fixing method of the first magnetic body 316 and the second magnetic body 317 on the base, as long as it can ensure that the first base 313 can be stably suspended above the second base 314.

[0095] Figure 9 It is a three-dimensional diagram of another embodiment of the first vibration damping part of the embodiment of the present application.

[0096] In some embodiments, at least one of the first magnetic body 316 , the second magnetic body 317 and the transmission portion 315 (ie, the first magnetic pole 351 and the second magnetic pole 352 ) is an electromagnet or a permanent magnet.

[0097] For example, Figure 8 As shown, the first magnetic body 316, the second magnetic body 317 and the transmission part 315' are permanent magnets. Figure 9 The first vibration damping part 310" and Figure 8 The difference between the first vibration damping part 310' is that the first magnetic body 316' and the second magnetic body 317' are electromagnets, that is, the first magnetic body 316' can be energized by the wire 3161 to obtain magnetism, and the second magnetic body 317' can be energized by the wire 3171 to obtain magnetism. Figure 9 The transmission part 315 ′ shown may also be an electromagnet.

[0098] In the above example, the current of the electromagnet can be adjusted according to the vibration amplitude and / or vibration frequency of the air compressor assembly 20 to quickly dampen the vibration, for example, to maximize the vibration damping rate. The current control method can refer to related art and is not limited in this embodiment of the present application.

[0099] In addition, the number of the transmission parts is at least one, e.g. Figure 6 As shown, the first vibration damping part 310 includes four transmission parts 315, but the embodiment of the present application is not limited thereto and may include only one transmission part, or may include 2, 3, 5 or other numbers of transmission parts, as long as the force between the first base 313 and the second base 314 can be stably transmitted.

[0100] In addition, for air compressors using magnetic vibration reduction bases, when the compressor is operating, the axial direction of the air compressor assembly is parallel to the direction of gravity, which is conducive to maximizing the effect of magnetic vibration reduction. However, the embodiments of the present application do not limit the working direction of the air compressor.

[0101] In some embodiments, as Figure 1 As shown, the air compressor 1 may further include a cooling fan 40, which is arranged radially outside the air compressor assembly 20 and fixed to the inner wall of the housing 10. Figure 1 As shown, the air inlet 401 of the cooling fan 40 is, for example, a plurality of through holes penetrating the side wall of the housing 10, thereby achieving heat dissipation of the air compressor assembly 20. Figure 2 As shown, the heat dissipation holes 301 of the air compressor assembly 20 can be set on the side wall of the shell 10. In addition, the heat dissipation holes 301 can also be set at the bottom of the shell 10, thereby preventing the heat dissipation airflow from blowing towards the user and being more beautiful.

[0102] According to the air compressor provided in the embodiment of the present application, by providing a vibration-damping structure in both the axial and radial directions of the air compressor assembly, the vibration of the air compressor assembly during operation can be fully absorbed, thereby reducing the vibration and noise transmitted to the outside.

[0103] An embodiment of the present application also provides a portable oxygen concentrator, which includes the air compressor described in any of the aforementioned embodiments. Since the structure of the air compressor has been described in detail before, its content is incorporated here and the description is omitted here.

[0104] Figure 10 It is a three-dimensional diagram of the portable oxygen concentrator according to an embodiment of the present application.

[0105] like Figure 10As shown, the portable oxygen concentrator 1000 may further include an oxygen concentrator 2, wherein the axial direction of the air compressor 1 is parallel to the axial direction of the oxygen concentrator 2 and the air compressor 1 is located on one side of the axial direction of the oxygen concentrator 2. Thus, the structure of the portable oxygen concentrator 1000 can be made more compact.

[0106] In addition, the oxygen generator 2 generates oxygen, for example, based on the principle of pressure swing adsorption. The compressed air outlet of the air compressor 1 is connected to the air inlet of the oxygen generator 2. Thus, the oxygen generator 2 can adsorb nitrogen from the air and separate oxygen after the pressure reaches a predetermined value. The embodiments of this application do not limit the implementation of the oxygen generator 2, and reference may be made to related technologies.

[0107] In addition, the portable oxygen concentrator of the embodiment of the present application may also include other components, for example, it may also include a nasal oxygen tube, etc., and can be designed according to actual needs. The embodiment of the present application does not limit this.

[0108] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The air compressor and portable oxygen concentrator of the embodiments of the present application may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.

Claims

1. An air compressor, characterized in that: The air compressor comprises: a housing forming a receiving space; an air compressor assembly, which is disposed in the accommodation space; A vibration damping assembly is arranged in the accommodating space, and includes a first vibration damping portion arranged on at least one of the axial sides of the air compressor assembly and a plurality of second vibration damping portions arranged in the circumferential direction of the air compressor assembly, wherein the first vibration damping portion absorbs the axial vibration of the air compressor assembly, and the second vibration damping portion absorbs the radial vibration of the air compressor assembly.

2. The air compressor according to claim 1, wherein The plurality of second vibration damping parts are evenly distributed in a circumferential direction of the air compressor assembly.

3. The air compressor according to claim 2, wherein: The plurality of second vibration damping parts include vibration damping springs.

4. The air compressor according to claim 1, wherein The damping of the first vibration damping portion is greater than the damping of the second vibration damping portion.

5. The air compressor according to claim 1, wherein The first vibration damping part includes a rubber column array, and the tops of the rubber columns of the rubber column array are in contact with the axial surface of the air compressor assembly.

6. The air compressor according to claim 5, wherein In the rubber column array, the larger the axial dimension of the rubber column is, the larger the radial dimension of the rubber column is.

7. The air compressor according to claim 1, wherein The first vibration damping part includes a magnetic vibration damping base, and the magnetic vibration damping base includes: a first base supporting the air compressor assembly in an axial direction; a second base, which is opposite to the first base and fixed to the housing; and a transmission part, which transmits the interaction force between the first base and the second base, A first magnetic body is suspended on the side of the first base opposite to the second base, and a second magnetic body is suspended on the side of the second base opposite to the first base. The first base is suspended in the accommodating space relative to the second base through the magnetic force between the first magnetic body and the second magnetic body transmitted by the transmission part.

8. The air compressor according to claim 7, wherein: The first magnetic body and the second magnetic body are magnets of opposite polarity; The transmission part is a flexible rope connecting the first magnetic body and the second magnetic body, or the transmission part includes a first magnetic pole provided on the first base and a second magnetic pole provided on the second base, and the first magnetic pole and the second magnetic pole are opposite magnetic poles.

9. The air compressor according to claim 7, wherein: The first magnetic body and the second magnetic body are magnets of the same polarity; The transmission part includes a third magnetic pole provided on the first magnetic body and a fourth magnetic pole provided on the second magnetic body, and the third magnetic pole and the fourth magnetic pole are magnetic poles of the same polarity.

10. The air compressor according to claim 7, wherein The magnetic flux area of ​​the second magnetic body is greater than the magnetic flux area of ​​the first magnetic body.

11. A portable oxygen concentrator, characterized in that: The portable oxygen concentrator comprises the air compressor according to any one of claims 1 to 10.

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