A compressor suspension noise reduction structure for an oxygen concentrator

Abstract

This utility model discloses a compressor suspension silencing structure for an oxygen concentrator, including a compressor and a chamber housing the compressor. The chamber includes: a chamber bottom plate, which is installed above the bottom plate of the oxygen concentrator, forming a space between the bottom plate and the top of the bottom plate for installing the molecular sieve cylinder; a first spring assembly, one end of which is connected to the side plate or top plate of the chamber, and the other end of which is connected to the upper part of the compressor; a second spring assembly, one end of which is connected to the chamber bottom plate, and the other end of which is connected to the lower part of the compressor; and a compressor intake silencer, which is disposed on the chamber bottom plate and located below the compressor, and the compressor intake silencer does not directly contact the compressor and the molecular sieve cylinder. Compared with the prior art, this utility model facilitates multi-directional suspension and vibration damping of the compressor by setting the first and second spring assemblies, and placing the compressor intake silencer on the chamber bottom plate below the compressor improves the silencing effect and facilitates the miniaturization of the oxygen concentrator.

Description

Technical Field

[0001] This utility model belongs to the field of oxygen generator technology, specifically relating to a compressor suspension silencing structure for an oxygen generator. Background Technology

[0002] The air compressor is one of the important components of an oxygen concentrator, and it generates significant vibration and noise when compressing air to do work.

[0003] In existing technologies, to reduce vibration and noise in compressors, the compressor is typically confined to the base plate of the compressor chamber. The compressor is connected to the base plate via vibration damping components. Since the vibration damping components are at least partially made of flexible materials, the compressor can reduce noise while providing vibration damping. However, the compressor is relatively heavy, and the vibration damping components are only vertically fixed to the base plate. During long-distance transportation or long-term operation, the compressor may hit the side wall of the compressor chamber, generating significant noise. Furthermore, the vibration damping components made of flexible materials are relatively small and have a relatively weak noise reduction effect. It is necessary to add additional silencing devices outside the compressor chamber to improve noise reduction performance. This leads to an increase in the size of the oxygen concentrator, which is not conducive to the miniaturization of the oxygen concentrator.

[0004] To address this issue, this invention provides a compressor suspension silencing structure for oxygen concentrators to improve the compressor's vibration damping and noise reduction performance without increasing the size of the oxygen concentrator. Utility Model Content

[0005] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects and advantages of the present application more readily apparent.

[0006] This invention provides a compressor suspension silencer structure for an oxygen concentrator. By setting a first spring group and a second spring group, the compressor is limited in the chamber from multiple directions to reduce vibration during operation or transportation. Furthermore, a compressor intake silencer that does not directly contact the compressor and molecular sieve cylinder is set on the bottom plate of the chamber to reduce noise of the gas before entering the compressor, which is beneficial to the miniaturization of the oxygen concentrator.

[0007] This utility model discloses a compressor suspension silencing structure for an oxygen concentrator, including a compressor and a chamber for housing the compressor, the chamber comprising: A chamber bottom plate is installed above the bottom plate of the oxygen generator, and forms a space between the chamber bottom plate and the bottom plate of the oxygen generator for installing the molecular sieve cylinder in the oxygen generator. The first spring assembly has one end connected to the side plate or top plate of the chamber, and the other end connected to the upper part of the compressor. The second spring assembly has one end connected to the bottom plate of the chamber and the other end connected to the lower part of the compressor; The compressor intake muffler is disposed on the bottom plate of the chamber and located below the compressor. The upper part of the compressor intake muffler does not directly contact the compressor, and the lower part of the compressor intake muffler does not directly contact the molecular sieve cylinder.

[0008] In some embodiments, the silencer inlet and silencer outlet of the compressor intake silencer are both upward-facing and located on the same side as the compressor intake.

[0009] In some implementations, it also includes: An air inlet is provided on the chamber and is located on the same side as the air inlet of the compressor; The sidewall of the chamber includes a first support and a second support installed on the bottom plate of the oxygen generator and spanning both sides of the molecular sieve cylinder in the oxygen generator; the first support is provided with a gas storage tank, and the gas storage tank is provided with an air inlet.

[0010] In some embodiments, the compressor intake muffler includes: The muffler base has a continuously bent groove on its upper part; The muffler cover has a muffler inlet and a muffler outlet on its top, and is closed and mounted on the muffler seat. The closed mounting forms a muffler air passage with the muffler groove.

[0011] In some embodiments, the muffler seat is integrally formed and disposed on the bottom plate of the chamber.

[0012] In some embodiments, the side of the muffler seat extends to the side of the chamber floor plate.

[0013] In some embodiments, the compressor intake muffler is fitted onto the chamber floor plate via an opening formed therein, and the lower end of the compressor intake muffler extends into the gap between the chamber floor plate and the molecular sieve cylinder.

[0014] In some embodiments, the silencer inlet and silencer outlet of the compressor intake silencer are composed of an inclined pipe section that slopes towards the side of the chamber floor and a vertical section that moves vertically upwards from bottom to top.

[0015] In some embodiments, the compressor is an I-shaped four-cylinder VPSA compressor; the first spring group and the second spring group include four springs, which are symmetrically distributed at the four ends of the upper and lower parts of the compressor.

[0016] In some embodiments, a buffer layer made of elastic material is provided above the compressor intake muffler, and the elastic modulus of the buffer layer is less than that of the spring.

[0017] The beneficial effects of this utility model are as follows: By setting the first spring group and the second spring group to confine the compressor in the chamber from multiple directions, the vibration of the compressor in multiple directions can be effectively suppressed, the irregular movement in the chamber can be reduced, and the compressor can be effectively prevented from shifting or colliding with the side wall of the chamber during vibration. This is beneficial to protecting the internal structure of the oxygen concentrator and reducing the noise generated by the collision. By setting the compressor intake silencer on the bottom plate of the chamber and below the compressor, the noise of the gas entering the compressor can be reduced, and the collision of the compressor intake silencer with the compressor during vibration can be effectively reduced. At the same time, since the compressor intake silencer is set between the compressor and the molecular sieve cylinder, the gap between the compressor and the molecular sieve cylinder is fully utilized without increasing the size of the oxygen concentrator, which is conducive to the miniaturization of the oxygen concentrator. Attached Figure Description

[0018] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0019] Figure 1 This is a partial structural schematic diagram of an oxygen generator in one embodiment of the present invention.

[0020] Figure 2 This is a partial structural schematic diagram of an oxygen generator in another embodiment of the present invention.

[0021] Figure 3 This is a top view of the muffler base of the compressor intake muffler of this utility model.

[0022] Figure 4 This is a three-dimensional structural diagram of a compressor intake muffler according to the present invention.

[0023] Figure description: Chamber 1, Chamber bottom plate 11, Compressor inlet silencer 12, Silencing inlet 121, Silencing outlet 122, Silencing seat 123, Silencing groove 1231, Silencing cover 124, Inclined tube section 1241, Vertical section 1242, Compressor 2, Inlet 21, Molecular sieve cylinder 3, Bottom plate 4, First support 5, Second support 6, Air storage tank 7, Air inlet 71. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments provided by this utility model without inventive effort are within the scope of protection of this utility model.

[0025] Obviously, the accompanying drawings described below are merely some examples or embodiments of this utility model. Those skilled in the art can apply this utility model to other similar scenarios without any creative effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this utility model, any changes to the design, manufacturing, or production methods based on the disclosed technical content are merely conventional technical means and should not be construed as insufficient disclosure of this utility model.

[0026] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this utility model. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this utility model may be combined with other embodiments without conflict.

[0027] like Figure 1-4 As shown, a compressor suspension silencing structure for an oxygen concentrator includes a compressor 2 and a chamber 1 housing the compressor 2. The chamber 1 includes: The chamber bottom plate 11 is installed above the bottom plate 4 of the oxygen generator and forms a space between the chamber bottom plate 11 and the bottom plate 4 of the oxygen generator for installing the molecular sieve cylinder 3 in the oxygen generator; in some possible embodiments, in order to save internal space of the oxygen generator, the molecular sieve cylinder 3 can be arranged horizontally on the bottom plate 4 of the oxygen generator. The first spring assembly (not shown in the figure) has one end connected to the side plate or top plate of the chamber 1 and the other end connected to the upper part of the compressor 2, that is, the upper structure of the compressor is suspended by the first spring assembly. The second spring assembly (not shown in the figure) has one end connected to the bottom plate 11 of the chamber and the other end connected to the lower part of the compressor 2, that is, the mechanism of the lower part of the compressor is suspended by the second spring assembly. The compressor intake silencer 12 is installed on the chamber bottom plate 11 and located below the compressor 2. The upper part of the compressor intake silencer 12 does not directly contact the compressor 2, and the lower part of the compressor intake silencer 12 does not directly contact the molecular sieve cylinder 3.

[0028] This invention effectively suppresses the vibration of the compressor 2 in multiple directions by setting a first spring group and a second spring group to limit the compressor 2 from multiple angles, reducing irregular movement within its chamber 1. This effectively prevents the compressor 2 from shifting or colliding with the side wall of the chamber 1 during vibration, thus protecting the internal structure of the oxygen concentrator. By placing the compressor intake silencer 12 on the chamber bottom plate 11 and below the compressor 2, it can reduce noise from the gas entering the compressor 2 and reduce the collision of the compressor 2 with the compressor intake silencer 12 during vibration. At the same time, since the compressor intake silencer 12 is located between the compressor 2 and the molecular sieve cylinder 3, it utilizes the gap between the compressor 2 and the molecular sieve cylinder 3 without increasing the volume of the oxygen concentrator, which is beneficial for miniaturization of the oxygen concentrator.

[0029] In some embodiments, in order to facilitate pipeline connection and allow gas to smoothly enter the compressor 2 after being silenced by the compressor intake silencer 12, the silencer intake port 121 and the silencer outlet 122 of the compressor intake silencer 12 are both arranged facing upwards and are located on the same side as the intake port 21 of the compressor 2.

[0030] In some embodiments, in order to facilitate the rapid entry of outside air into the compressor 2 and reduce pipeline connections, the compressor suspension silencing structure for the oxygen generator also includes an air inlet 71, which is disposed on the chamber 1 and located on the same side as the air inlet 21 of the compressor 2; in order to facilitate the placement of the air inlet 71 and the integration of the oxygen generator, the side wall of the chamber 1 includes a first support 5 and a second support 6 installed on the bottom plate 4 of the oxygen generator and spanning both sides of the molecular sieve cylinder 3 in the oxygen generator. The first support 5 is provided with an air storage tank 7, and the air storage tank 7 is provided with an air inlet 71.

[0031] In some embodiments, such as Figure 3-4 As shown, in order to improve the intake noise reduction effect of compressor 2, compressor intake muffler 12 includes: muffler seat 123, on which a noise reduction groove 1231 with a continuous bending structure is provided; muffler cover 124, on which a noise reduction inlet 121 and a noise reduction outlet 122 are provided, and closed on the muffler seat 123, and the closed arrangement forms a noise reduction air passage with the noise reduction groove 1231, thereby improving noise reduction performance by extending the gas transport path.

[0032] In some embodiments, such as Figure 1As shown, in order to facilitate the assembly of the compressor intake muffler 12 and improve assembly efficiency, the muffler seat 123 is integrally formed on the chamber bottom plate 11.

[0033] In some embodiments, to maximize the noise reduction effect of the compressor intake muffler 12, the side of the muffler seat 123 extends to the side of the chamber floor plate 11, thereby extending the noise reduction path and improving the noise reduction effect; in some possible embodiments, such as Figure 1-2 As shown, in order to facilitate the fixing of the compressor intake muffler 12, the side of the muffler seat 123 refers to the front and rear sides in the direction shown in the figure. By extending the front and rear sides of the muffler seat 123 to the front and rear sides of the chamber bottom plate 11, the gas silencing path can be extended, which also facilitates the fixing of the compressor intake muffler 12 and the chamber bottom plate 11.

[0034] In some embodiments, such as Figure 2 As shown, in order to facilitate the individual disassembly and replacement of the compressor intake muffler 12, the compressor intake muffler 12 is installed on the chamber bottom plate 11 through an opening in the chamber bottom plate 11, and the lower end of the compressor intake muffler 12 extends into the gap between the chamber bottom plate 11 and the molecular sieve cylinder 3 to improve the muffler effect by increasing the muffler space.

[0035] In some embodiments, in order to avoid the air inlet 21 of the compressor 2, such as Figure 4 As shown, the silencer inlet 121 and silencer outlet 122 of the compressor intake silencer 12 are composed of an inclined tube section 1241 that slopes towards the side of the chamber floor 11 and a vertical section 1242 that moves vertically upwards from bottom to top. By setting the inclined tube section 1241, it can avoid the intake port 21 of the compressor 2, and prevent the silencer inlet 121 / or silencer outlet 122 from crossing or overlapping with the intake port 21 of the compressor 2 when making pipeline connections, which would affect the pipeline connection and increase the layout difficulty.

[0036] In some embodiments, in order to improve the oxygen production and nitrogen removal efficiency of the oxygen concentrator, the compressor 2 is a four-cylinder VPSA compressor with an I-shaped structure. The first spring group and the second spring group each include four springs, which are symmetrically distributed at the four ends of the upper and lower parts of the compressor to suspend the compressor 2 from multiple angles.

[0037] In some embodiments, to prevent the compressor 2 from colliding with the compressor intake muffler 12 when the oxygen concentrator falls from a height, a buffer layer made of elastic material is provided above the compressor intake muffler 12, and the elastic modulus of the buffer layer is less than that of the spring. Normally, the vibration reduction of the compressor 2 is achieved through the cooperation of the suspension structure and the spring. Adding a buffer layer at the bottom serves three purposes: first, to restrict and position the compressor 2 in a suspended state; second, to sandwich a buffer layer with greater deformation (more flexible) between the compressor 2 and the compressor intake muffler 12, so that a certain vibration frequency can be filtered and offset by the buffer layer. Specifically, the buffer layer is a buffer sponge, buffer rubber, or silicone pad, etc.; and third, to reduce the impact force between the bottom of the compressor 2 and the compressor intake muffler 12 when the equipment is subjected to severe external impact.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A compressor suspension silencing structure for an oxygen generator, comprising a compressor and a chamber accommodating the compressor, characterized in that, The chamber includes: A chamber bottom plate is installed above the bottom plate of the oxygen generator, and forms a space between the chamber bottom plate and the bottom plate of the oxygen generator for installing the molecular sieve cylinder in the oxygen generator. The first spring assembly has one end connected to the side plate or top plate of the chamber, and the other end connected to the upper part of the compressor. The second spring assembly has one end connected to the bottom plate of the chamber and the other end connected to the lower part of the compressor; The compressor intake muffler is disposed on the bottom plate of the chamber and located below the compressor. The upper part of the compressor intake muffler does not directly contact the compressor, and the lower part of the compressor intake muffler does not directly contact the molecular sieve cylinder.

2. The compressor suspension silencing structure for an oxygen generator according to claim 1, wherein The silencer inlet and outlet of the compressor intake silencer are both upward-facing and located on the same side as the compressor intake.

3. The compressor suspension silencing structure for an oxygen generator according to claim 2, wherein Also includes: An air inlet is provided on the chamber and is located on the same side as the air inlet of the compressor; The sidewall of the chamber includes a first support and a second support installed on the bottom plate of the oxygen generator and spanning both sides of the molecular sieve cylinder in the oxygen generator; the first support is provided with a gas storage tank, and the gas storage tank is provided with an air inlet.

4. The compressor suspension silencing structure for an oxygen generator according to claim 1, wherein The compressor intake muffler includes: The muffler base has a continuously bent groove on its upper part; The muffler cover has a muffler inlet and a muffler outlet on its top, and is closed and mounted on the muffler seat. The closed mounting forms a muffler air passage with the muffler groove.

5. The compressor suspension silencing structure for an oxygen generator according to claim 4, wherein The muffler seat is integrally formed and disposed on the bottom plate of the chamber.

6. The compressor suspension silencing structure for an oxygen manufacturing machine according to claim 4, wherein The side of the silencer seat extends to the side of the chamber floor plate.

7. The compressor suspension silencing structure for an oxygen manufacturing machine according to claim 4, wherein The compressor intake muffler is installed on the chamber floor plate by means of an opening formed in the chamber floor plate, and the lower end of the compressor intake muffler extends into the gap between the chamber floor plate and the molecular sieve cylinder.

8. The compressor suspension silencing structure for an oxygen manufacturing machine according to claim 7, wherein The silencer inlet and outlet of the compressor intake silencer are composed of an inclined pipe section that slopes towards the side of the chamber floor and a vertical section that moves vertically upwards, from bottom to top.

9. The compressor suspension silencing structure for an oxygen generator according to claim 1, wherein The compressor is a four-cylinder VPSA compressor with an I-shaped structure; the first spring group and the second spring group include four springs, which are symmetrically distributed at the four ends of the upper and lower parts of the compressor.

10. The compressor suspension silencing structure for an oxygen manufacturing machine according to claim 9, wherein Above the compressor intake muffler is a buffer layer made of elastic material, and the elastic modulus of the buffer layer is less than that of the spring.

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