Silencing assembly and oxygen generating device

Abstract

The application relates to the field of acoustics and noise elimination, in particular to a noise elimination assembly and an oxygen production device, wherein the noise elimination assembly comprises a noise elimination box and a noise elimination column, and the noise elimination column is connected to one side of the noise elimination box. The noise elimination box is provided with an air inlet, a communication port and a noise elimination cavity, the air inlet and the communication port are communicated with the noise elimination cavity respectively, and the air inlet is arranged at one end of the noise elimination box away from the noise elimination column. The noise elimination column is provided with an air outlet and a noise elimination bin, and the noise elimination bin is communicated with the air outlet and the communication port respectively. The noise elimination cavity of two different types of noise elimination boxes and the noise elimination bin of the noise elimination column are combined together, the cavity diameters of the two different types of noise elimination cavities and noise elimination bins are different, and the noise elimination assembly has a better noise reduction and elimination effect.

Description

Technical Field

[0001] This application relates to the fields of acoustics and noise reduction technology, and in particular to a noise reduction component and an oxygen generation device. Background Technology

[0002] In the field of industrial oxygen production, due to the unique characteristics of pressure swing adsorption (PSA) oxygen generation, significant pressure changes occur during gas path switching, resulting in brief exhaust noise from the inlet and outlet. Therefore, noise reduction for oxygen generation equipment is a common issue. Summary of the Invention

[0003] In view of the above problems, this application provides a noise reduction component and an oxygen generation device, which overcomes or at least partially solves the above problems.

[0004] According to one aspect of this application, a noise reduction assembly is provided, including a noise reduction box and a noise reduction column, the noise reduction column being connected to one side of the noise reduction box. The noise reduction box is provided with an air inlet, a connecting port, and a noise reduction cavity, the air inlet and the connecting port respectively connecting to the noise reduction cavity, the air inlet being located at the end of the noise reduction box opposite to the noise reduction column. The noise reduction column is provided with an air outlet and a noise reduction chamber, the noise reduction chamber being respectively connected to the air outlet and the connecting port.

[0005] In some embodiments, the silencer box is provided with a first partition, which divides the silencer cavity into a first silencer cavity and a second silencer cavity that are connected to each other. The first silencer cavity is located on the side of the second silencer cavity away from the silencer column. The first silencer cavity is connected to the air inlet, and the second silencer cavity is connected to the connecting port.

[0006] In some embodiments, the silencer box is further provided with a second partition, and the first partition and the second partition divide the silencer chamber into a first silencer chamber, a second silencer chamber, and an intermediate chamber. The first silencer chamber is connected to the air inlet, the second silencer chamber is connected to the connecting port, and the intermediate chamber is connected to both the first silencer chamber and the second silencer chamber.

[0007] In some embodiments, the silencing box is further provided with a third partition, which is disposed between the first partition and the second partition, and the third partition divides the intermediate chamber into a third silencing chamber and a fourth silencing chamber that are connected to each other.

[0008] The first partition has a first notch, which connects to the first silencing cavity and the third silencing cavity respectively.

[0009] The second partition has a second notch, which connects to the second silencing chamber and the fourth silencing chamber respectively.

[0010] The third partition has two third notches, which connect to the third silencing chamber and the fourth silencing chamber respectively.

[0011] In this context, along the first direction, the position of the first gap does not coincide with the position of the two third gaps, and the position of the second gap does not coincide with the position of the two third gaps. The first direction is the direction from the first partition to the second partition.

[0012] In some embodiments, along a second direction, a first notch is disposed between two third notches, a second notch is disposed between two third notches, and the second direction is perpendicular to the direction from the first partition to the second partition. And / or, The third partition is provided with a dividing plate, which extends from the third partition toward the first partition. Along the first direction, the position of the first partition coincides with the position of the first notch.

[0013] In some embodiments, the silencer box is further provided with a fourth partition, the number of third partitions is N, and the number of fourth partitions is N-1.

[0014] One of the third partitions is arranged adjacent to the first partition, and a third silencing cavity is provided between the third partition and the first partition.

[0015] Another third partition is arranged adjacent to the second partition, and a fourth silencing cavity is provided between the other third partition and the second partition.

[0016] Each fourth partition is positioned between two corresponding third partitions. Along the first direction, each fourth partition has a connected fifth silencing cavity and a sixth silencing cavity on both sides.

[0017] In some embodiments, each fourth partition is provided with a fourth notch, and each fourth notch is connected to an adjacent fifth silencing cavity and a sixth silencing cavity.

[0018] In this case, along the first direction, the position of the fourth gap does not coincide with the positions of the two third gaps. And / or, Along the second direction, the fourth notch is located between the two third notches, and the second direction is perpendicular to the direction of the first partition towards the second partition.

[0019] In some embodiments, sound-absorbing cotton is provided inside the first sound-absorbing cavity. And / or, The second silencing chamber is equipped with sound-absorbing cotton. And / or, Each third silencing chamber contains two sound-absorbing cotton pieces, spaced apart at both ends of the third silencing chamber along a second direction perpendicular to the direction from the first partition to the second partition. And / or, Each fourth silencing chamber contains two sound-absorbing cotton pieces, spaced apart at both ends of the fourth silencing chamber along a second direction perpendicular to the direction from the first partition to the second partition. And / or, Each fifth silencing chamber contains two sound-absorbing cotton pieces, spaced apart at both ends of the fifth silencing chamber along a second direction perpendicular to the direction from the first partition to the second partition. And / or, Each sixth silencing chamber is equipped with two sound-absorbing cotton pieces, which are spaced apart at both ends of the sixth silencing chamber along a second direction perpendicular to the direction from the first partition to the second partition. And / or, The soundproof compartment is equipped with sound-absorbing cotton.

[0020] In some embodiments, the silencing box includes a box body and a cover body, the box body and the cover body are connected to form a silencing cavity, and a silencing column is connected to one side of the box body.

[0021] In some embodiments, the silencing column is disposed on one side of the silencing box along a first direction; Along the second direction, the air outlet is located at the end of the silencer chamber opposite to the air inlet, and the second direction is perpendicular to the first direction. And / or, Along the second direction, the air outlet is located at the end of the silencer chamber opposite to the connecting port, and the second direction is perpendicular to the first direction.

[0022] According to another aspect of this application, an oxygen generating device is provided, including an oxygen generating component and the aforementioned silencing component, wherein the silencing component is connected to the oxygen generating component.

[0023] The beneficial effects of this application are as follows: Unlike existing technologies, this application provides a noise reduction assembly, including a noise reduction box and a noise reduction column, with the column connected to one side of the noise reduction box. The noise reduction box has an air inlet, a connecting port, and a noise reduction cavity. The air inlet and connecting port are respectively connected to the noise reduction cavity, and the air inlet is located at the end of the noise reduction box opposite to the noise reduction column. The noise reduction column has an air outlet and a noise reduction chamber, which are respectively connected to the air outlet and the connecting port. Gas entering from the air inlet can flow sequentially through the noise reduction cavity, the connecting port, and the noise reduction chamber, and then flow out from the air outlet, thereby reducing noise in the flowing gas. This application combines the noise reduction cavities of two different types of noise reduction boxes and the noise reduction chambers of noise reduction columns. The two different types of noise reduction cavities and chambers have different diameters, resulting in better noise reduction effects. Attached Figure Description

[0024] To more clearly illustrate the technical solution of this application, the drawings used in this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0025] Figure 1 This is a perspective view of the noise reduction component provided in the embodiments of this application; Figure 2This is a schematic diagram of the structure of the box and the sound-absorbing column provided in the embodiments of this application; Figure 3 This is a top view of the housing and sound-absorbing column provided in the embodiments of this application; Figure 4 This is a cross-sectional view of the box and sound-absorbing column provided in the embodiments of this application, which are equipped with sound-absorbing cotton; Figure 5 This is a schematic diagram of the structure of the box and the sound-absorbing column provided in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the cover provided in the embodiment of this application.

[0026] The reference numerals in the detailed embodiments are as follows: 1. Silencing assembly; 1a. Silencing box; 11. Box body; 111. Air inlet; 1121. First silencing chamber; 1122. Second silencing chamber; 112a. Intermediate chamber; 1123. Third silencing chamber; 1124. Fourth silencing chamber; 1125. Fifth silencing chamber; 1126. Sixth silencing chamber; 1131. First partition; 1141. First notch; 1132. Second partition; 1142. Second notch; 1133, Third partition; 1143, Third notch; 1144, Divider; 1134, Fourth partition; 1145, Fourth notch; 115, Connecting opening; 116, Limiting part; 117, First connecting groove; 12, Cover; 121, First connecting part; 13, Silencing column; 131, Silencing chamber; 132, Air outlet; 14, Silencing cotton; X, First direction; Y, Second direction. Detailed Implementation

[0027] To facilitate understanding of the present invention, 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 "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 "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.

[0028] 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 invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0029] To facilitate the reader's understanding of the concept of this invention, the specific structure of the noise reduction component is described below: Please see Figure 1-3 The silencing assembly 1 includes a silencing box 1a and a silencing column 13, with the silencing column 13 connected to one side of the silencing box 1a. The silencing box 1a has an air inlet 111, a connecting port 115, and a silencing chamber. The air inlet 111 and the connecting port 115 are respectively connected to the silencing chamber, and the air inlet 111 is located at the end of the silencing box 1a opposite to the silencing column 13. The silencing column 13 has an air outlet 132 and a silencing chamber 131, with the silencing chamber 131 respectively connected to the air outlet 132 and the connecting port 115. Gas entering through the air inlet 111 can flow sequentially through the silencing chamber, the connecting port 115, and the silencing chamber 131, and then flow out through the air outlet 132, thereby reducing the noise of the flowing gas. This application combines the silencing cavities of two different types of silencing boxes 1a and the silencing chambers 131 of silencing columns 13 together. The cavities of the two different types of silencing cavities and silencing chambers 131 have different diameters, which has a better noise reduction effect.

[0030] In some embodiments, the silencing column is disposed on one side of the silencing box along a first direction; Along the second direction Y, the air outlet 132 is located at the end of the silencing chamber 131 opposite to the air inlet 111. The second direction Y is perpendicular to the first direction X, increasing the gas flow path and improving noise reduction. And / or, Along the second direction Y, the air outlet 132 is located at the end of the silencing chamber 131 away from the connecting port 115. The second direction Y is perpendicular to the first direction X, which increases the gas flow path and improves the noise reduction effect.

[0031] In some embodiments, the silencing box 1a is provided with a first partition 1131, which divides the silencing chamber into a first silencing chamber 1121 and a second silencing chamber 1122 that are connected to each other. The first silencing chamber 1121 is located on the side of the second silencing chamber 1122 that is away from the silencing column 13. The first silencing chamber 1121 is connected to the air inlet 111, and the second silencing chamber 1122 is connected to the connecting port 115. The gas entering from the air inlet 111 can flow sequentially through the first silencing chamber 1121, the second silencing chamber 1122, the connecting port 115, and the silencing chamber 131, and then flow out from the air outlet 132, increasing the gas flow path and improving the noise reduction effect. The silencing chamber of the silencing box 1aa is divided into a first silencing chamber 1121 and a second silencing chamber 1122 by the first partition 1131. Without increasing the space, a multi-chamber structure is formed to improve the noise reduction effect and reduce the space occupied by the silencing component 1. The second silencing chamber 1122 is located between the first silencing chamber 1121 and the silencing column 13, making the structure more compact and further reducing the space occupied by the silencing component 1. This is beneficial for the installation and application of the silencing component 1 in the whole machine and for the miniaturization of the whole machine.

[0032] In some embodiments, the minimum cross-sectional area of ​​the first silencing cavity 1121 is greater than the maximum cross-sectional area of ​​the air inlet 111, forming an expansion system. The gas entering the first silencing cavity 1121 from the air inlet 111 is expanded, resulting in a decrease in pressure and a reduction in noise.

[0033] In some embodiments, the first silencing cavity 1121 and the second silencing cavity 1122 are elongated, and the silencing chamber 131 is cylindrical, which is beneficial to improving the noise reduction and sound attenuation effect.

[0034] In some embodiments, the silencing box 1a is further provided with a second partition 1132. The first partition 1131 and the second partition 1132 divide the silencing cavity into a first silencing cavity 1121, a second silencing cavity 1122, and an intermediate chamber 112a. The first silencing cavity 1121 is connected to the air inlet 111, the second silencing cavity 1122 is connected to the connecting port 115, and the intermediate chamber 112a is connected to both the first silencing cavity 1121 and the second silencing cavity 1122. Gas in the first silencing cavity 1121 can flow through the intermediate chamber 112a and then into the second silencing cavity 1122, increasing the gas flow path and improving the noise reduction effect. By dividing the silencing cavity into the first silencing cavity 1121, the second silencing cavity 1122, and the intermediate chamber 112a through the first partition 1131 and the second partition 1132, a multi-cavity structure is formed without increasing the space required, improving the noise reduction effect and reducing the space occupied by the silencing component 1.

[0035] In some embodiments, the silencing box 1a is further provided with a third partition 1133, which is disposed between the first partition 1131 and the second partition 1132, dividing the intermediate chamber 112a into a connected third silencing cavity 1123 and a fourth silencing cavity 1124. The first partition 1131 has a first notch 1141, which connects the first silencing cavity 1121 and the third silencing cavity 1123. The second partition 1132 has a second notch 1142, which connects the second silencing cavity 1122 and the fourth silencing cavity 1124. The third partition 1133 has two third notches 1143, which connect the third silencing cavity 1123 and the fourth silencing cavity 1124. The gas in the first silencing chamber 1121 can flow sequentially through the first notch 1141, the third silencing chamber 1123, the third notch 1143, the fourth silencing chamber 1124, and the second notch 1142 before entering the second silencing chamber 1122, increasing the gas flow path and improving the noise reduction effect. The intermediate chamber 112a is divided into the interconnected third silencing chamber 1123 and the fourth silencing chamber 1124 by the third partition 1133, forming a multi-chamber structure without adding extra space, thus improving the noise reduction effect and reducing the space occupied by the silencing component 1.

[0036] Specifically, along the first direction X, the position of the first notch 1141 does not coincide with the positions of the two third notches 1143, and the position of the second notch 1142 does not coincide with the positions of the two third notches 1143. The first direction X is the direction from the first partition 1131 toward the second partition 1132. In this way, the flow path and time of gas in the third silencing cavity 1123 can be increased, thereby improving the noise reduction and sound attenuation effect.

[0037] In some embodiments, along the second direction Y, a first notch 1141 is disposed between two third notches 1143, and a second notch 1142 is disposed between two third notches 1143, with the second direction Y perpendicular to the direction of the first partition 1131 toward the second partition 1132. In this way, a portion of the gas in the third silencing chamber 1123 can flow into the fourth silencing chamber 1124 through one second notch 1142, and another portion of the gas in the third silencing chamber 1123 can flow into the fourth silencing chamber 1124 through the other second notch 1142, achieving a gas diversion effect to reduce flow velocity and air pressure, further reducing noise. And / or, The third partition 1133 is provided with a partition plate 1144, which extends from the third partition 1133 toward the first partition 1131 along the first direction X. The position of the first partition 1131 coincides with the position of the first notch 1141. In this way, the gas flowing into the third silencing cavity 1123 from the first notch 1141 is divided into two parts by the partition plate 1144. The two parts of gas flow through the third silencing cavity 1123 from both sides of the partition plate 1144, improving the gas diversion effect to reduce the flow velocity and air pressure, and further reducing noise.

[0038] In some embodiments, the silencing box 1a is further provided with a fourth partition 1134, the number of third partitions 1133 is N, and the number of fourth partitions 1134 is N-1. One third partition 1133 is arranged adjacent to a first partition 1131, and a third silencing cavity 1123 is provided between one third partition 1133 and the first partition 1131. Another third partition 1133 is arranged adjacent to a second partition 1132, and a fourth silencing cavity 1124 is provided between the other third partition 1133 and the second partition 1132. Each fourth partition 1134 is disposed between two corresponding third partitions 1133, and along the first direction X, a fifth silencing cavity 1125 and a sixth silencing cavity 1126 are respectively provided on both sides of each fourth partition 1134. In this way, the gas flow path can be increased, and the noise reduction effect can be improved. N can be any integer greater than 1.

[0039] In some embodiments, each fourth partition 1134 is provided with a fourth notch 1145, and each fourth notch 1145 connects to an adjacent fifth silencing cavity 1125 and a sixth silencing cavity 1126. Thus, between two adjacent third partitions 1133, gas in the fifth silencing cavity 1125 can flow into the sixth silencing cavity 1126 through the fourth notch 1145. Along the first direction X, the position of the fourth notch 1145 does not coincide with the position of the two third notches 1143. This increases the flow path and time of gas in the fifth silencing cavity 1125 and the sixth silencing cavity 1126, improving the noise reduction effect. And / or, Along the second direction Y, a fourth notch 1145 is positioned between the two third notches 1143, with the second direction Y perpendicular to the direction from the first partition 1131 toward the second partition 1132. Thus, in the fifth silencing chamber 1125, gas flowing in from the two third notches 1143 can pass through the fifth silencing chamber 1125 and converge at the fourth notch 1145 before flowing into the sixth silencing chamber 1126. In the sixth silencing chamber 1126, a portion of the gas flowing in from the fourth notch 1145 can flow through the sixth silencing chamber 1126 and exit from one of the third notches 1143, while another portion can flow through the sixth silencing chamber 1126 and exit from the other third notch 1143. This achieves a gas diversion effect to reduce flow velocity and air pressure, further reducing noise.

[0040] In some embodiments, there are two third partitions 1133 and one fourth partition 1134, and the gas flow direction is as follows: Figure 3 As shown by the middle arrow, gas enters the first silencing chamber 1121 through the air inlet 111, then enters the third silencing chamber 1123 through the first notch 1141, and is divided into two parts by the partition plate 1144. The two parts of gas enter the fifth silencing chamber 1125 through the two third notches 1143, and then enter the sixth silencing chamber 1126 through the fourth notch 1145. The two parts of gas are divided into two parts by the partition plate 1144, and then enter the fourth silencing chamber 1124 through the two third notches 1143, then enter the second silencing chamber 1122 through the second notch 1142, then enter the silencing chamber 131 through the connecting port 115, and finally flow out through the air outlet 132.

[0041] In some embodiments, the third silencing cavity 1123, the fourth silencing cavity 1124, the fifth silencing cavity 1125, and the sixth silencing cavity 1126 are elongated.

[0042] In some embodiments, please refer to the following: Figure 4 The first silencing cavity 1121 is equipped with sound-absorbing cotton 14. And / or, The second silencing cavity 1122 is equipped with sound-absorbing cotton 14. And / or, Each third silencing cavity 1123 is provided with two sound-absorbing cotton 14, which are spaced apart at both ends of the third silencing cavity 1123 along the second direction Y, perpendicular to the direction from the first partition 1131 toward the second partition 1132. And / or, Each fourth silencing cavity 1124 is provided with two sound-absorbing cotton 14, which are spaced apart at both ends of the fourth silencing cavity 1124 along the second direction Y, perpendicular to the direction from the first partition 1131 toward the second partition 1132. And / or, Each fifth silencing cavity 1125 is provided with two sound-absorbing cotton 14s, which are spaced apart at both ends of the fifth silencing cavity 1125 along the second direction Y, which is perpendicular to the direction from the first partition 1131 toward the second partition 1132. And / or, Each sixth silencing cavity 1126 is provided with two sound-absorbing cotton 14s, which are spaced apart at both ends of the sixth silencing cavity 1126 along the second direction Y, perpendicular to the direction from the first partition 1131 toward the second partition 1132. And / or, The sound-absorbing chamber 131 is equipped with sound-absorbing cotton 14.

[0043] Among them, the sound-absorbing cotton 14 can reduce the sound energy of the gas and suppress noise.

[0044] In some embodiments, the sound-absorbing cotton 14 in the first silencing cavity 1121 and the second silencing cavity 1122 is elongated strip-shaped sound-absorbing cotton 14. The sound-absorbing cotton 14 in the silencing chamber 131 is cylindrical sound-absorbing cotton 14 with low density, and can be formed in one piece or multiple layers of cylindrical sound-absorbing cotton 14 stacked together. Gas can pass through the sound-absorbing cotton 14 under pressure. The sound-absorbing cotton 14 in the third silencing cavity 1123, the fourth silencing cavity 1124, the fifth silencing cavity 1125, and the sixth silencing cavity 1126 is block-shaped sound-absorbing cotton 14.

[0045] In some embodiments, in the third silencing cavity 1123 and / or the fourth silencing cavity 1124 and / or the fifth silencing cavity 1125 and / or the sixth silencing cavity 1126, along the second direction Y, one sound-absorbing cotton 14 is located on the side of one third notch 1143 away from the other third notch 1143, and the other sound-absorbing cotton 14 is located on the side of the other third notch 1143 away from the first third notch 1143. In this way, the two sound-absorbing cottons 14 can eliminate the noise caused by airflow scouring, while also reducing the possibility of obstructing the gas in the main air path and affecting the overall system's air resistance.

[0046] In some embodiments, please refer to the following: Figure 5The third silencing cavity 1123 and / or the fourth silencing cavity 1124 and / or the fifth silencing cavity 1125 and / or the sixth silencing cavity 1126 are provided with two limiting parts 116. Along the second direction Y, one limiting part 116 is located on the side of one third notch 1143 away from the other third notch 1143 to limit one sound-absorbing cotton 14, which is conducive to the installation of one sound-absorbing cotton 14. The other limiting part 116 is located on the side of another third notch 1143 away from the first third notch 1143 to limit another sound-absorbing cotton 14, which is conducive to the installation of the other sound-absorbing cotton 14.

[0047] In some embodiments, the limiting portion 116 protrudes from the wall of the silencing cavity.

[0048] In some embodiments, please refer to the following: Figure 6 The muffler box 1a includes a box body 11 and a cover 12. The box body 11 and the cover 12 are connected and form a muffler cavity, which facilitates the disassembly of the muffler box 1a. A muffler column 13 is connected to one side of the box body 11. The box body 11 is provided with an air inlet 111 and a connecting port 115. The box body 11 is connected to a first partition 1131, a second partition 1132, a third partition 1133, and a limiting part 116.

[0049] In some embodiments, a gap exists between the limiting portion 116 and the cover 12 in the direction from the box body 11 to the cover 12.

[0050] In some embodiments, the cover 12 is an irregularly shaped flat plate structure that can completely cover the cavity and connecting space of the box 11.

[0051] In some embodiments, the housing 11 is provided with a first connecting groove 117, and the cover 12 is provided with a first connecting portion 121. The first connecting portion 121 is disposed in the first connecting groove 117, which facilitates the fixing and sealing of the cover 12 and the housing 11. The first connecting portion 121 can be embedded in the first connecting groove 117. The first connecting groove 117 is wrapped around the edge of the housing 11, and the first connecting portion 121 is wrapped around the edge of the cover 12. The detachable installation of the housing 11 and the cover 12 facilitates the installation of the sound-absorbing cotton 14 inside the housing 11.

[0052] In some embodiments, the first partition 1131, the second partition 1132, the third partition 1133 and the fourth partition 1134 are provided with a first connecting groove 117, the partition 1144 is provided with a first connecting groove 117, and the cover 12 is provided with a first connecting portion 121 in the area corresponding to the partition and the partition 1144.

[0053] In some embodiments, adhesive is provided between the first connecting portion 121 and the first connecting groove 117 to improve the fixing and sealing effect between the cover 12 and the box 11.

[0054] In some embodiments, the housing 11 and the cover 12 are connected by ultrasonic or hot plate welding.

[0055] In some embodiments, the silencing column 13 and the housing 11 are fixed and sealed by means of a connecting part and a connecting groove, or the silencing column 13 and the housing 11 are connected by ultrasonic or hot plate welding.

[0056] In this application, the silencing cavities of two different types of silencing boxes 1aa and the silencing chambers 131 of silencing columns 13 are combined together. The cavities of the two different types of silencing cavities and silencing chambers 131 have different diameters, which have a better noise reduction effect. The silencing cavities of silencing boxes 1aa are divided into the first silencing cavity 1121, the second silencing cavity 1122, the third silencing cavity 1123, the fourth silencing cavity 1124, the fifth silencing cavity 1125, and the sixth silencing cavity 1126 by the first partition 1131, the second silencing cavity 1122, the third silencing cavity 1123, the fourth silencing cavity 1124, the fifth silencing cavity 1125, and the sixth silencing cavity 1126. Without increasing the space, a multi-cavity structure is formed to improve the noise reduction effect, reduce the space occupied by the silencing component 1, facilitate the installation and application of the silencing component 1 on the whole machine, and facilitate the miniaturization of the whole machine.

[0057] The present invention also provides an embodiment of an oxygen generating device, the oxygen generating device including an oxygen generating component and the above-mentioned silencing component 1, the silencing component 1 being connected to the oxygen generating component. The function and structure of the silencing component 1 can be referred to the above embodiments, and will not be repeated here.

[0058] It should be noted that while the preferred embodiments of the present invention are given in the specification and accompanying drawings, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of the present invention; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of the present invention. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of the present invention specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A noise reduction component, characterized in that, include: A muffler box and a muffler column, wherein the muffler column is connected to one side of the muffler box; The muffler box is provided with an air inlet, a connecting port and a muffler cavity. The air inlet and the connecting port are respectively connected to the muffler cavity. The air inlet is located at one end of the muffler box away from the muffler column. The silencer column is provided with an air outlet and a silencer chamber, and the silencer chamber is connected to the air outlet and the connecting port respectively.

2. The noise reduction assembly according to claim 1, characterized in that, The silencing box is provided with a first partition, which divides the silencing cavity into a first silencing cavity and a second silencing cavity that are connected. The first silencing cavity is located on the side of the second silencing cavity that is away from the silencing column. The first silencing cavity is connected to the air inlet, and the second silencing cavity is connected to the connecting port.

3. The noise reduction assembly according to claim 2, characterized in that, The silencing box is also provided with a second partition, and the first partition and the second partition divide the silencing cavity into a first silencing cavity, a second silencing cavity and an intermediate chamber; The first silencing chamber is connected to the air inlet, the second silencing chamber is connected to the connecting port, and the intermediate chamber is connected to both the first silencing chamber and the second silencing chamber.

4. The noise reduction assembly according to claim 3, characterized in that, The silencing box is also provided with a third partition, which is disposed between the first partition and the second partition. The third partition divides the intermediate chamber into a third silencing chamber and a fourth silencing chamber that are connected to each other. The first partition has a first notch, which connects the first silencing cavity and the third silencing cavity respectively; The second partition has a second notch, which connects the second silencing cavity and the fourth silencing cavity respectively; The third partition has two third notches, which are respectively connected to the third silencing cavity and the fourth silencing cavity; Wherein, along the first direction, the position of the first gap does not coincide with the position of the two third gaps, the position of the second gap does not coincide with the position of the two third gaps, and the first direction is the direction from the first partition to the second partition.

5. The noise reduction assembly according to claim 4, characterized in that, Along a second direction, the first notch is disposed between the two third notches, the second notch is disposed between the two third notches, and the second direction is perpendicular to the direction from the first partition to the second partition; and / or, The third partition is provided with a dividing plate, which extends from the third partition toward the first partition. Along the first direction, the position of the first partition coincides with the position of the first notch.

6. The noise reduction assembly according to claim 4, characterized in that, The silencer box is also equipped with a fourth partition, the number of the third partitions is N, and the number of the fourth partitions is N-1; One of the third partitions is disposed adjacent to the first partition, and a third silencing cavity is provided between the third partition and the first partition; Another third partition is disposed adjacent to the second partition, and the fourth silencing cavity is provided between the other third partition and the second partition; Each of the fourth partitions is disposed between the corresponding two third partitions, and along the first direction, each of the fourth partitions has a fifth silencing cavity and a sixth silencing cavity connected to each other on both sides.

7. The noise reduction assembly according to claim 6, characterized in that, Each of the fourth partitions is provided with a fourth notch, and each of the fourth notches is connected to the adjacent fifth and sixth silencing chambers; Wherein, along the first direction, the position of the fourth notch does not coincide with the positions of the two third notches; and / or, Along the second direction, the fourth notch is disposed between the two third notches, and the second direction is perpendicular to the direction of the first partition towards the second partition.

8. The noise reduction assembly according to claim 6, characterized in that, The first silencing cavity is equipped with sound-absorbing cotton; and / or, The second silencing cavity is equipped with sound-absorbing cotton; and / or, Each of the third silencing chambers is provided with two sound-absorbing cotton pieces, which are spaced apart at both ends of the third silencing chamber along a second direction, the second direction being perpendicular to the direction of the first partition towards the second partition. And / or, Each of the fourth silencing chambers is provided with two sound-absorbing cotton pieces, which are spaced apart at both ends of the fourth silencing chamber along a second direction, the second direction being perpendicular to the direction from the first partition to the second partition. And / or, Each of the fifth silencing chambers is provided with two sound-absorbing cotton pieces, which are spaced apart at both ends of the fifth silencing chamber along a second direction perpendicular to the direction from the first partition to the second partition; and / or, Each of the sixth silencing chambers is provided with two sound-absorbing cotton pieces, which are spaced apart at both ends of the sixth silencing chamber along a second direction perpendicular to the direction from the first partition to the second partition; and / or, The sound-absorbing chamber is equipped with sound-absorbing cotton.

9. The noise reduction assembly according to any one of claims 1-8, characterized in that, The silencing box includes a box body and a cover body. The box body and the cover body are connected and enclose the silencing cavity. The silencing column is connected to one side of the box body.

10. The noise reduction assembly according to any one of claims 1-8, characterized in that, The silencing column is disposed on one side of the silencing box along the first direction; Along the second direction, the air outlet is located at one end of the silencing chamber opposite to the air inlet, and the second direction is perpendicular to the first direction; And / or, Along the second direction, the air outlet is located at the end of the silencing chamber opposite to the communication port, and the second direction is perpendicular to the first direction.

11. An oxygen generating device, characterized in that, include: Oxygen generating components; The silencing component as described in any one of claims 1-10, wherein the silencing component is connected to the oxygen generating component.

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