A gas muffler, oxygen generating device and vehicle

Abstract

The embodiment of the application relates to the technical field of sound elimination, and particularly discloses a gas silencer, an oxygen production device and a vehicle, which comprise a sound elimination sleeve provided with a mounting cavity, a first opening and a second opening communicated with the mounting cavity, the first opening and the second opening being oppositely arranged along an axial direction; a sound elimination piece filled in the mounting cavity, and a cross section of the sound elimination piece along a radial direction of the sound elimination sleeve being in a spiral shape; a connecting piece covered on the first opening, the connecting piece being connected with the sound elimination sleeve, the connecting piece being provided with an air inlet hole communicated with the mounting cavity, and the connecting piece being used for connecting an exhaust port on an external device; wherein, gas flowing out of the exhaust port enters the mounting cavity from the air inlet hole and the first opening, and flows out of the second opening after flowing through the sound elimination piece. Through the above mode, the sound elimination and noise reduction capacity of the gas silencer can be improved.

Description

Technical Field

[0001] This application relates to the field of noise reduction technology, and in particular to a gas silencer, oxygen generation equipment, and vehicle. Background Technology

[0002] With the increasing number of people and environments requiring oxygen, the demand for oxygen production in daily life is also growing. Many vehicles are equipped with onboard oxygen concentrators, which provide high concentrations of oxygen. In one type of onboard oxygen concentrator, the oxygen generator uses pressure swing adsorption (PSA) to separate oxygen and nitrogen from the air, filtering out harmful substances to obtain high-purity oxygen that meets medical requirements. To improve oxygen production efficiency, a large amount of nitrogen is inevitably continuously discharged from the nitrogen exhaust port. This results in a high flow rate and a large pressure difference between the nitrogen and the outside environment, generating significant noise. Related technologies use a sealed enclosure around the oxygen concentrator to isolate noise, but this method somewhat affects the exhaust process.

[0003] The inventors of this application have discovered that the ability to silence and reduce the noise of nitrogen emissions still needs to be improved. Utility Model Content

[0004] In view of the above problems, embodiments of this application provide a gas silencer, oxygen generation equipment, and vehicle, which overcome the above problems or at least partially solve the above problems.

[0005] According to one aspect of this application, a gas silencer is provided, comprising a silencer sleeve having an installation cavity and a first opening and a second opening communicating with the installation cavity, the first opening and the second opening being axially opposite to each other; a silencer member filling the installation cavity, the silencer member having a spiral cross-section along the radial direction of the silencer sleeve; and a connector covering the first opening, the connector having an air inlet communicating with the installation cavity, the connector being used to connect to an exhaust port on an external device; wherein, gas flowing out of the exhaust port on the external device enters the installation cavity through the air inlet and the first opening, flows through the silencer member, and then flows out through the second opening.

[0006] In one alternative embodiment, the muffler includes a first muffler plate and a second muffler plate, with one end of the first muffler plate and one end of the second muffler plate connected together, and the other end of the first muffler plate and the other end of the second muffler plate intertwined to form the muffler.

[0007] In one alternative embodiment, a predetermined space is provided between the silencing component and the inner wall of the mounting cavity.

[0008] In one alternative embodiment, the connector has a first connecting end at the end opposite to the muffler sleeve, the air inlet is located at the first connecting end, and the first connecting end is used to be inserted into the exhaust port.

[0009] In one alternative embodiment, a second connecting post is provided at one end of the connector near the muffler sleeve. The second connecting post is provided with a receiving space communicating with the air inlet. The receiving space is interconnected with the mounting cavity. The second connecting post is inserted into the first opening and connected to the muffler sleeve.

[0010] In one alternative embodiment, the outer wall of the second connecting column is provided with a plurality of glue overflow grooves, which are spaced apart from each other.

[0011] In one alternative embodiment, the inner wall of the mounting cavity extends radially with a limiting protrusion, which abuts against the side of the second connecting post near the silencing sleeve when the second connecting post is inserted into the first opening.

[0012] In one alternative embodiment, the end of the muffler near the connector abuts against the air intake, and the end of the muffler away from the connector abuts against the second opening.

[0013] According to another aspect of this application, an oxygen generating device is provided, including a nitrogen discharge port and a gas silencer as described above, the gas silencer being disposed at the nitrogen discharge port.

[0014] According to another aspect of this application, a vehicle is provided, including the oxygen generating device as described above.

[0015] The beneficial effects of this application embodiment are as follows: Unlike the prior art, this application embodiment includes a silencing sleeve, a silencing component, and a connector. The silencing sleeve has an installation cavity and a first opening and a second opening communicating with the installation cavity. The first and second openings are axially opposite each other. The silencing component fills the installation cavity, and its radial cross-section is spiral-shaped. The connector covers the first opening and connects to the silencing sleeve. The connector has an air inlet communicating with the installation cavity. The connector is used to connect to an exhaust port on an external device. Gas flowing from the exhaust port on the external device enters the installation cavity through the air inlet and the first opening, flows through the silencing component, and then flows out through the second opening. The spiral-shaped radial cross-section of the silencing component increases the propagation path of sound waves within the silencing sleeve. The spiral structure guides sound waves along the spiral path, thereby increasing the contact opportunities and contact time between the sound waves and the silencing component. This allows the silencing component to more effectively absorb and consume sound energy, thus improving the noise reduction capability of the gas silencer. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the overall structure of the gas silencer according to an embodiment of this application; Figure 2 This is an exploded schematic diagram of the overall structure of the gas silencer according to an embodiment of this application; Figure 3 This is a schematic diagram of the silencer component structure of the gas silencer according to an embodiment of this application; Figure 4 This is a side sectional view of the overall structure of the gas silencer according to an embodiment of this application. Detailed Implementation

[0018] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0020] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0021] It should be noted that this application uses the gas silencer 1000 applied to oxygen production equipment as an example. The gas silencer 1000 is applied to the nitrogen exhaust port of the oxygen production equipment. It can be understood that the gas silencer can also be applied to other exhaust equipment, such as air compressors, fans, etc.

[0022] Please see Figure 1 and Figure 2The gas silencer 1000 includes a silencer sleeve 10, a silencer component 20, and a connector 30. The silencer component 20 is disposed inside the silencer sleeve 10, and the connector 30 is connected to the silencer sleeve 10. The connector 30 and the silencer sleeve 10 are interconnected. The connector 30 is used to connect to the nitrogen exhaust port of the oxygen generator so that the gas in the nitrogen exhaust port can enter the silencer sleeve 10.

[0023] For the aforementioned muffler sleeve 10, muffler component 20, and connector 30, such as Figures 1-3 As shown, the silencer sleeve 10 is provided with an installation cavity 10a and a first opening 10b and a second opening 10c communicating with the installation cavity 10a. The first opening 10b and the second opening 10c are arranged opposite each other along the axial direction. The silencer 20 is filled in the installation cavity 10a. The connector 30 is covered by the first opening 10b and is connected to the silencer sleeve 10. The connector 30 is provided with an air inlet 30a communicating with the installation cavity 10a. The connector 30 is used to connect to the nitrogen exhaust port of the oxygen generator. The first opening 10b facilitates the installation of the silencer 20 into the installation cavity 10a, and the second opening 10c facilitates the outflow of gas. The gas flowing out of the nitrogen exhaust port of the oxygen generator can flow into the installation cavity 10a from the air inlet 30a and the first opening 10b, and then flow through the silencer 20 and out from the second opening 10c, thereby achieving noise reduction of gas emissions. It is understandable that the connection between the connector 30 and the muffler sleeve 10 includes, but is not limited to, threaded connection, adhesive bonding, welding, etc., and the shape of the muffler sleeve 10 can be cylindrical, frustum-shaped, etc.

[0024] In some embodiments, the silencing element 20 has a spiral cross-section along the radial direction of the silencing sleeve 10. The spiral cross-section of the silencing element 20 increases the propagation path of sound waves within the silencing sleeve 10. The spiral structure guides sound waves along the spiral path, thereby increasing the contact opportunities and interaction time between the sound waves and the silencing element 20. This allows the silencing element 20 to more effectively absorb and dissipate sound energy, thus improving the noise reduction capability of the gas silencer 1000. It is understood that the silencing element 20 is composed of sound-absorbing material, such as felt or fiberglass.

[0025] In some embodiments, the muffler 20 includes a first muffler plate 201 and a second muffler plate 202, one end of the first muffler plate 201 and one end of the second muffler plate 202 are connected, and the other end of the first muffler plate 201 and the other end of the second muffler plate 202 are intertwined to form the muffler 20.

[0026] In some embodiments, please refer to the following: Figure 4A preset space 20a is provided between the silencing component 20 and the inner wall of the mounting cavity 10a. The preset space 20a can increase the propagation path of sound waves in the gas silencer 1000. The sound waves are reflected and refracted multiple times between the silencing component 20 and the inner wall of the silencing sleeve 10, thereby increasing the contact opportunities and contact time between the sound waves and the silencing component 20, and thus more effectively absorbing and consuming sound energy.

[0027] In some embodiments, the end of the muffler 20 near the connector 30 abuts against the air inlet 30a, and the end of the muffler 20 away from the connector 30 abuts against the second opening 10c. This configuration, by having the muffler 20 directly abut against the air inlet 30a and the second opening 10c, reduces the gaps between the muffler 20 and the air inlet 30a, and between the muffler 20 and the second opening 10c. This, in turn, reduces the likelihood of gas leakage between the muffler 20 and the air inlet 30a of the connector 30, and reduces the likelihood of gas leakage between the muffler 20 and the air outlet of the muffler sleeve 10.

[0028] In some embodiments, the end of the connector 30 facing away from the silencer sleeve 10 is provided with a first connecting end 301, and the air inlet 30a is located at the first connecting end 301. The first connecting end 301 is used to be inserted into the nitrogen vent. The first connecting end 301 is used to connect to the nitrogen vent of the oxygen generator. In some embodiments, the outer wall of the first connecting end 301 is also provided with an anti-slip protrusion 3011. The anti-slip protrusion 3011 can make the connection between the first connecting end 301 and the nitrogen vent more stable, so as to reduce the possibility of the first connecting end 301 slipping off the nitrogen vent.

[0029] In some embodiments, a second connecting post 302 is provided at one end of the connector 30 near the muffler sleeve 10. The second connecting post 302 has a receiving space 302a communicating with the air inlet 30a. The receiving space 302a is interconnected with the mounting cavity 10a. The second connecting post 302 is inserted into the first opening 10b and connected to the muffler sleeve 10. The second connecting post 302 is used to connect the muffler sleeve 10 to realize the connection between the connector 30 and the muffler sleeve 10. It can be understood that the connection method between the second connecting post 302 and the muffler sleeve 10 includes, but is not limited to, adhesive bonding, threaded connection, snap-fit, etc.

[0030] In some embodiments, the outer wall of the second connecting post 302 is provided with a plurality of glue overflow grooves 3021, which are spaced apart from each other. When the second connecting post 302 and the sound-absorbing sleeve 10 are connected with glue, the glue overflow grooves 3021 can accommodate at least part of the glue, thereby reducing the direct flow of glue into the sound-absorbing sleeve 10 and reducing the impact of glue on the sound-absorbing component 20 located inside the sound-absorbing sleeve 10.

[0031] In some embodiments, a limiting protrusion 101 extends radially along the inner wall of the mounting cavity 10a. When the second connecting post 302 is inserted into the first opening 10b, the limiting protrusion 101 abuts against the side of the second connecting post 302 near the muffler sleeve 10. The limiting protrusion 101 can reduce the axial movement of the second connecting post 302, thereby limiting the installation position of the connector 30 on the muffler sleeve 10.

[0032] In this embodiment, a muffler sleeve 10, a muffler component 20, and a connector 30 are provided. The muffler sleeve 10 has a mounting cavity 10a and a first opening 10b and a second opening 10c communicating with the mounting cavity 10a. The first opening 10b and the second opening 10c are axially opposite to each other. The muffler component 20 fills the mounting cavity 10a, and its cross-section along the radial direction of the muffler sleeve 10 is spiral-shaped. The connector 30 covers the first opening 10b and is connected to the muffler sleeve 10. The connector 30 has an air inlet 30a communicating with the mounting cavity 10a. The connector 30 is used to connect to external devices. The exhaust port is equipped with gas that flows out from the exhaust port into the mounting cavity 10a through the air inlet 30a and the first opening 10b, and flows out from the second opening 10c after passing through the silencer 20. The silencer 20 with a radially spiral cross-section can increase the propagation path of sound waves in the silencer sleeve 10. The spiral structure can guide the sound waves to propagate along the spiral path, thereby increasing the contact opportunity and action time between the sound waves and the silencer 20, so that the silencer 20 can absorb and consume sound energy more effectively, thereby improving the noise reduction capability of the gas silencer 1000.

[0033] This application also provides an embodiment of an oxygen generating device, which includes a nitrogen discharge port and a gas silencer 1000 as described above. The gas silencer 1000 is disposed at the nitrogen discharge port. The function and structure of the gas silencer 1000 can be referred to the above embodiments, and will not be repeated here.

[0034] This application also provides an embodiment of a vehicle, which includes the oxygen generating device described above. The function and structure of the oxygen generating device can be found in the above embodiments, and will not be repeated here.

[0035] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A gas silencer, characterized in that, include: A sound-absorbing sleeve is provided with a mounting cavity and a first opening and a second opening communicating with the mounting cavity, wherein the first opening and the second opening are arranged opposite to each other along the axial direction. A silencing component is filled into the mounting cavity, and the cross-section of the silencing component along the radial direction of the silencing sleeve is spiral-shaped; A connector is provided on the first opening, the connector is connected to the muffler sleeve, the connector is provided with an air inlet that communicates with the mounting cavity, and the connector is used to connect to the exhaust port on an external device; The gas flowing out of the exhaust port on the external device enters the mounting cavity through the air inlet and the first opening, and flows out through the muffler and then out through the second opening.

2. The gas silencer according to claim 1, characterized in that, The noise reduction component includes a first noise reduction plate and a second noise reduction plate. One end of the first noise reduction plate and one end of the second noise reduction plate are connected, and the other end of the first noise reduction plate and the other end of the second noise reduction plate are intertwined to form the noise reduction component.

3. The gas silencer according to claim 1, characterized in that, There is a predetermined space between the sound-absorbing component and the inner wall of the mounting cavity.

4. The gas silencer according to claim 1, characterized in that, The end of the muffler near the connector abuts against the air inlet, and the end of the muffler away from the connector abuts against the second opening.

5. The gas silencer according to claim 1, characterized in that, The connector has a first connecting end at the end opposite to the muffler sleeve, the air inlet is located at the first connecting end, and the first connecting end is used to be inserted into the exhaust port.

6. The gas silencer according to claim 1, characterized in that, The connector has a second connecting post at one end near the muffler sleeve. The second connecting post has a receiving space that communicates with the air inlet. The receiving space is interconnected with the mounting cavity. The second connecting post is inserted into the first opening and connected to the muffler sleeve.

7. The gas silencer according to claim 6, characterized in that, The outer wall of the second connecting column is provided with multiple overflow grooves, which are spaced apart from each other.

8. The gas silencer according to claim 6, characterized in that, The inner wall of the mounting cavity has a limiting protrusion extending radially. When the second connecting post is inserted into the first opening, the limiting protrusion abuts against the side of the second connecting post near the sound-absorbing sleeve.

9. An oxygen generating device, characterized in that, It includes a nitrogen vent and a gas silencer as described in any one of claims 1-8, wherein the gas silencer is disposed at the nitrogen vent.

10. A vehicle, characterized in that, Includes the oxygen generating device as described in claim 9.

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