Silencer and vehicle

Abstract

The utility model discloses a silencer and a vehicle. The silencer comprises a shell and a separation assembly. The shell comprises a containing cavity, an air inlet hole and an air outlet hole, the containing cavity is defined by the inner surface of the shell, and the air inlet hole and the air outlet hole both penetrate through the outer surface and the inner surface of the shell; the partition assembly is arranged in the containing cavity and divides the containing cavity into a plurality of cavities. The multiple cavities comprise at least two silencing cavities used for being communicated with the pneumatic product. The silencing cavities are communicated in series, so that gas entering the containing cavity from the air inlet sequentially passes through the silencing cavities and then is exhausted from the air outlet. When the silencer is applied to a vehicle seat, a corresponding pneumatic product of the seat is communicated with the silencer to form a corresponding gas path, and during working, gas can collide with the separation assembly in the process that the gas enters the containing cavity and flows among the silencing cavities, so that the flow speed of the gas can be reduced, the sound generated when the gas flows is reduced, and the service life of the vehicle seat is prolonged. Noise generated when a pneumatic product of the seat works is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a muffler, seat, and vehicle. Background Technology

[0002] To improve passenger comfort, vehicles are equipped with pneumatic products, which mainly include air pumps and air bags. The air bags are installed on the seats, and the air pumps can inflate the air bags to support the occupants.

[0003] In the existing technology, pneumatic products for seats generate significant noise during use, reducing the user experience for occupants. Utility Model Content

[0004] This utility model provides a muffler, a seat, and a vehicle, aiming to solve the problem that existing pneumatic seat products generate significant noise during use.

[0005] This utility model provides a muffler applied to a vehicle seat to connect to a pneumatic product of the seat; it includes a housing and a partition assembly; the housing includes a receiving cavity, an air inlet, and an air outlet, the inner surface of the housing surrounds the receiving cavity, and the air inlet and the air outlet both penetrate the outer surface and the inner surface of the housing; the partition assembly is disposed in the receiving cavity and divides the receiving cavity into multiple chambers; the multiple chambers include at least two muffler chambers for connecting to the pneumatic product; the muffler chambers are connected in series, such that gas entering the receiving cavity from the air inlet passes through each muffler chamber sequentially and is discharged from the air outlet.

[0006] Optionally, the partition assembly is detachably connected to the housing; wherein the partition assembly is inserted into the housing for detachable connection.

[0007] Optionally, the housing has a recess; the separating component can be inserted into the recess to connect to the housing, and can be removed from the recess to detach from the housing.

[0008] Optionally, the recess is disposed on the inner surface of the housing; and / or, the number of the recesses is multiple; the partition assembly includes multiple partition plates disposed within the receiving cavity to divide the receiving cavity into multiple chambers; each partition plate has a corresponding recess; each partition plate is respectively inserted into its corresponding recess.

[0009] Optionally, the outer casing includes a first housing and a second housing; the first housing and the second housing are detachably connected, and the first housing and the second housing are connected to enclose and form the receiving cavity; the recess is disposed in the first housing; or, the recess is disposed in the second housing; or, a portion of the recess is disposed in the first housing, and another portion of the recess is disposed in the second housing.

[0010] Optionally, the first housing has a first limiting structure on its surface near the second housing, and the second housing has a second limiting structure on its surface near the second housing; the surfaces of the first housing and the second housing are fitted together; the first limiting structure and the second limiting structure cooperate to limit the relative position of the first housing and the second housing; and / or, the first housing has a first mounting hole, the second housing has a second mounting hole, and the first mounting hole and the second mounting hole communicate to form the receiving cavity.

[0011] Optionally, the partition assembly includes at least one connecting pipe and at least one partition plate; at least one partition plate is disposed within the receiving cavity to divide the receiving cavity into several chambers; the connecting pipe connects the partition plate and communicates with the two silencing chambers.

[0012] Optionally, the plurality of chambers include a buffer chamber, the buffer chamber and the silencer chamber being air-isolated; the silencer further includes a buffer element disposed within the buffer chamber.

[0013] Optionally, the muffler further includes an air inlet pipe passing through the air inlet hole, one end of the air inlet pipe being located outside the outer casing, and the other end of the air inlet pipe extending into the receiving cavity; the air inlet pipe communicates with the muffler cavity, and the opening of the end of the air inlet pipe extending into the receiving cavity is opposite to the partition plate; the muffler further includes an air outlet pipe connected to the outer casing and communicating with the muffler cavity from the air outlet hole, at least a portion of the air outlet pipe being located outside the outer casing.

[0014] Optionally, the partition plates are arranged at intervals in sequence; the number of partition plates is three, so as to divide the receiving cavity into four chambers; the four chambers are a first chamber, a second chamber, a third chamber, and a fourth chamber arranged in sequence; the first chamber, the third chamber, and the fourth chamber are the silencing chambers; the number of connecting pipes is two, namely a first pipe and a second pipe; the first pipe connects the first chamber and the third chamber, and the second pipe connects the first chamber and the fourth chamber; the air inlet extends through to the inner surface of the first chamber, and the air outlet extends through to the inner surface of the fourth chamber; the air inlet pipe connects to the third chamber, and the end of the air inlet pipe that extends into the receiving cavity is opposite to the partition plate between the third chamber and the fourth chamber.

[0015] This utility model embodiment also provides a vehicle, including a seat, a pneumatic product, and a muffler as described in any one of the above; the pneumatic product is connected to the seat, and the muffler cavity is connected to the pneumatic product.

[0016] Optionally, the pneumatic product includes an air bag connected to the seat; the air bag's exhaust port is connected to the air inlet port to allow air to pass through the air inlet port into the receiving cavity.

[0017] In the muffler and vehicle provided in this utility model embodiment, when the muffler is applied to the vehicle seat, the corresponding pneumatic product of the seat is connected to the muffler to form a corresponding air passage. When working, after the gas enters the receiving cavity, it can collide with the partition component during the process of flowing between the muffler cavities. This can reduce the gas flow rate, thereby reducing the sound when the gas flows, so as to reduce the noise when the pneumatic product of the seat is working. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a silencer provided in an embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of a muffler provided in an embodiment of this utility model;

[0021] Figure 3 This is a cross-sectional view of the housing of a muffler provided in an embodiment of this utility model;

[0022] Figure 4This is a partial structural schematic diagram of a muffler provided in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the first housing of the muffler provided in an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the second housing of the muffler provided in one embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of a muffler separator assembly provided in one embodiment of the present invention.

[0026] Instruction manual drawing reference numerals:

[0027] 10. Muffler;

[0028] 1. Outer shell; 11. Receiving cavity; 111. Chamber; 112. Silencing cavity; 113. Buffer cavity; 114. First cavity; 115. Second cavity; 116. Third cavity; 117. Fourth cavity; 12. Air inlet; 13. Air outlet; 14. Recess; 141. First groove; 142. Second groove; 143. Third groove; 144. Fourth groove; 145. Fifth groove; 146. Sixth groove;

[0029] 15. First housing; 151. First mounting hole; 152. First limiting structure; 16. Second housing; 161. Second mounting hole; 162. Second limiting structure;

[0030] 2. Divider assembly; 21. Divider plate; 211. Clearance hole; 212. Clearance window; 213. Perforation; 214. Vent hole; 22. Connecting pipe; 221. First pipe; 222. Second pipe;

[0031] 3. Buffer components;

[0032] 4. Air intake pipe;

[0033] 5. Air outlet pipe. Detailed Implementation

[0034] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to 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.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] like Figures 1 to 4 As shown, in one embodiment, the muffler 10 is applied to a vehicle seat to connect to a pneumatic product of the seat. The muffler 10 includes a housing 1 and a partition assembly 2. The housing 1 includes a receiving cavity 11, an air inlet 12, and an air outlet 13. The inner surface of the housing 1 surrounds the receiving cavity 11, and the air inlet 12 and the air outlet 13 both penetrate the outer surface and the inner surface of the housing 1. The partition assembly 2 is disposed within the receiving cavity 11 and divides the receiving cavity 11 into multiple chambers 111. Each of the multiple chambers 111 includes at least two silencing chambers 112 for connecting to the pneumatic product. The silencing chambers 112 are connected in series, such that gas entering the receiving cavity 11 from the air inlet 12 passes through each silencing chamber 112 sequentially and is discharged from the air outlet 13. "Multiple" means two or more, and the meaning of the term "multiple" is the same in all embodiments and will not be repeated hereafter.

[0037] In this embodiment, the corresponding pneumatic product of the seat is connected to the muffler 10 to form a corresponding air passage. The gas in the air passage first enters the receiving cavity 11 (specifically, enters a certain muffler cavity 112) from the air inlet 12, then passes through each muffler cavity 112 in sequence, and finally exits the muffler 10 from the air outlet 13.

[0038] As the gas enters the receiving cavity 11 and flows between the various silencing cavities 112, it can collide with the separating component 2, which can reduce the gas flow rate and thus reduce the sound of the gas flow, thereby reducing the noise of the pneumatic product of the seat when it is working.

[0039] In addition, in actual scenarios, when the gas is discharged from the muffler 10 through the vent 13, it can be directly discharged into the atmosphere; or, when the gas is discharged from the muffler 10 through the vent 13, it can also enter other components of the gas path.

[0040] It should be noted that the air inlet 12 forms a first opening on the inner surface of the outer casing 1, and the chamber 111 where the first opening is located is the first chamber, that is, the air inlet 12 extends to the inner surface of the first chamber. The air outlet 13 forms a second opening on the inner surface of the outer casing 1, and the chamber 111 where the second opening is located is the second chamber, that is, the air outlet 13 extends to the inner surface of the second chamber. A portion of the inner surface of the first chamber is a portion of the inner surface of the outer casing 1, and a portion of the inner surface of the second chamber is a portion of the inner surface of the outer casing 1.

[0041] Gas entering the receiving cavity 11 through the air inlet 12 can mean that gas enters the first chamber through the air inlet 12.

[0042] Alternatively, gas can enter the receiving cavity 11 through the air inlet 12. This can also mean that a first air tube is inserted through the air inlet 12, with both ends of the first air tube extending out of the air inlet 12. Gas enters the first chamber or another chamber 111 outside the first chamber through the first air tube. Specifically, the air inlet end of the first air tube is located outside the outer shell 1, and the air outlet end of the first air tube is located inside the outer shell 1 (i.e., inside the receiving cavity 11). Gas enters the first air tube from the air inlet end and exits from the air outlet end of the first air tube. The air outlet end of the first air tube can be located inside the first chamber or inside a chamber 111 outside the first chamber.

[0043] Gas exiting the receiving cavity 11 from the vent 13 can mean that gas enters the second chamber from the vent 13 so that it can be exited from the vent 13 into the receiving cavity 11.

[0044] Alternatively, gas can be discharged from the vent 13 into the receiving cavity 11. This can also mean that a second air tube is inserted through the vent 13, with both ends of the second air tube extending out of the vent 13. Gas from the second chamber or other chambers 111 outside the second chamber is discharged from the receiving cavity 11 through the second air tube. Specifically, the inlet end of the second air tube is located inside the outer shell 1 (i.e., inside the receiving cavity 11), and the outlet end of the second air tube is located outside the outer shell 1. The inlet end of the second air tube can be located inside the second chamber or in a chamber 111 outside the second chamber.

[0045] In one embodiment, the separator 2 and the housing 1 are detachably connected, which facilitates maintenance of the muffler 10 to ensure its noise reduction performance. Furthermore, if either the separator 2 or the housing 1 is damaged, only the damaged component needs to be replaced, thereby reducing the usage and maintenance costs of the muffler 10.

[0046] In one embodiment, the separator 2 is inserted into the housing 1 for detachable connection. This facilitates the assembly and disassembly of both components.

[0047] like Figure 3 As shown, in one embodiment, the housing 1 is provided with a recess 14; the separator 2 can be inserted into the recess 14 to connect to the housing 1, and can be removed from the recess 14 to detach from the housing 1.

[0048] The separator 2 has a corresponding protrusion; the protrusion can be inserted into the recess 14, thus the separator 2 is inserted into the recess 14; the protrusion moves out of the recess 14, thus the separator 2 moves out of the recess 14.

[0049] like Figure 3 As shown, in one embodiment, the recess 14 is provided on the inner surface of the outer casing 1. This makes it easier to set the recess 14. Moreover, at this time, the recess 14 is connected to the receiving cavity 11. During assembly, the receiving cavity 11 can be used to compensate for the processing errors of the recess 14 to a certain extent, thereby facilitating the production and assembly of the outer casing 1. At the same time, the recess 14 and the receiving cavity 11 are connected without any partition structure between them. Therefore, the partition component 2 does not need to be provided with a structure to avoid the partition structure, thereby facilitating the production and processing of the partition component 2.

[0050] like Figure 2 and Figure 7 As shown, in one embodiment, the separating component 2 includes a separating plate 21, which is used to separate the receiving cavity 11 to form a plurality of chambers 111. The separating plate 21 can be inserted into the recess 14, thereby allowing the separating component 2 to be inserted into the recess 14; the separating plate 21 can also be removed from the recess 14, thereby allowing the separating component 2 to be removed from the recess 14. In this case, the edge portion of the separating plate 21 itself constitutes the aforementioned protrusion.

[0051] like Figure 3 As shown, in one embodiment, there are multiple recesses 14; the partition assembly 2 includes multiple partition plates 21, each partition plate 21 having a corresponding recess 14; each partition plate 21 is inserted into its corresponding recess 14, and at this time, the receiving cavity 11 is divided into multiple chambers 111 by each partition plate 21.

[0052] The partition plate 21 and the recess 14 can be in one-to-one correspondence.

[0053] like Figure 2 As shown, in one embodiment, the partition plates 21 are arranged at intervals, which makes it easier to set up the partition components 2. At this time, the chambers 111 are also arranged at intervals along the arrangement direction of the partition plates 21.

[0054] In addition, in the arrangement direction of each partition plate 21, the air inlet 12 and the air outlet 13 are located on both sides of the receiving cavity 11.

[0055] In one embodiment, the receiving cavity 11 has a cuboid structure, and the partition plates 21 are arranged sequentially at intervals along the length of the receiving cavity 11. Alternatively, the partition plates 21 can be flat plates, specifically cuboid structures. Of course, in other embodiments, both the receiving cavity 11 and the partition plates 21 can be other shapes.

[0056] like Figure 1 , Figure 5 as well as Figure 6 As shown, in one embodiment, the outer shell 1 includes a first shell 15 and a second shell 16; the first shell 15 and the second shell 16 are detachably connected, and the first shell 15 and the second shell 16 are connected to form a receiving cavity 11. That is, after the first shell 15 and the second shell 16 are connected together, they form a receiving cavity 11.

[0057] like Figure 5 and Figure 6 As shown, in one embodiment, the first housing 15 is provided with a first mounting hole 151, and the second housing 16 is provided with a second mounting hole 161. The first mounting hole 151 and the second mounting hole 161 communicate to form a receiving cavity 11.

[0058] like Figure 5 and Figure 6 As shown, in one embodiment, a first limiting structure 152 is provided on the surface of the first housing 15 near the second housing 16, and a second limiting structure 162 is provided on the surface of the second housing 16 near the second housing 16; the surfaces of the first housing 15 near the second housing 16 and the second housing 16 near the second housing 16 are attached to each other; the first limiting structure 152 and the second limiting structure 162 cooperate to limit the relative positions of the first housing 15 and the second housing 16.

[0059] In one embodiment, the first limiting structure 152 is a limiting groove, and the second limiting structure 162 is a limiting protrusion.

[0060] In addition, the limiting groove is a ring structure, which surrounds the first mounting hole 151, and the second limiting structure 162 is also a ring structure, which surrounds the second mounting hole 161.

[0061] In one embodiment, the arrangement direction of the first housing 15 and the second housing 16 intersects with the arrangement direction of each partition plate 21, and the two can be perpendicular.

[0062] like Figure 5 and Figure 6 As shown, in one embodiment, a portion of the recess 14 is disposed in the first housing 15, and another portion of the recess 14 is disposed in the second housing 16. This allows the partition plate 21 to simultaneously engage with both the first housing 15 and the second housing 16, making the partition plate 21 more securely installed.

[0063] The portion of recess 14 located on the first housing 15 is defined as the first portion, and the portion of recess 14 located on the second housing 16 is defined as the second portion. When recess 14 is located on the inner surface of housing 1, the first portion is located on the inner surface of the first housing 15, and the second portion is located on the inner surface of the second housing 16. The inner surface of housing 1 includes the inner surface of the first housing 15 and the inner surface of the second housing 16. The inner surface of the first housing 15 forms a first mounting hole 151, and the inner surface of the second housing 16 forms a second mounting hole 161.

[0064] like Figure 5 As shown, the first part includes a first groove 141, a second groove 142, and a third groove 143. The first groove 141 and the second groove 142 are located on opposite sides of the first mounting hole 151, while the third groove 143 is located on the bottom surface of the first mounting hole 151. Both sides and the bottom surface of the first mounting hole 151 are part of the inner surface of the first housing 15. Furthermore, the two ends of the third groove 143 connect to the first groove 141 and the second groove 142, respectively. After assembly, a portion of the partition plate 21 is located within the first groove 141, a portion within the second groove 142, and a further portion within the third groove 143. This not only ensures a more secure installation of the partition plate 21 within the first housing 15 but also improves the isolation effect of the chambers 111 on both sides of the partition plate 21.

[0065] Among them, the arrangement directions of the first groove 141 and the second groove 142, the arrangement directions of the first shell 15 and the second shell 16, and the arrangement directions of each partition plate 21 intersect each other, and the three can be perpendicular to each other.

[0066] Furthermore, the end of the first groove 141 facing away from the second housing 16 is connected to the third groove 143, and the end of the second groove 142 facing away from the second housing 16 is also connected to the third groove 143. Moreover, both the first groove 141 and the second groove 142 extend to the surface of the first housing 15 near the second housing 16, and the partition plate 21 can be inserted into the first groove 141 and the second groove 142 through the openings formed on the surface of the first housing 15 near the second housing 16.

[0067] In addition, the first groove 141, the second groove 142 and the third groove 143 can all be rectangular grooves.

[0068] like Figure 6As shown, the second part includes a fourth groove 144, a fifth groove 145, and a sixth groove 146. The fourth groove 144 and the fifth groove 145 are located on opposite sides of the second mounting hole 161, while the sixth groove 146 is located on the bottom surface of the second mounting hole 161. Both sides and the bottom surface of the second mounting hole 161 are part of the inner surface of the second housing 16. Furthermore, the two ends of the sixth groove 146 connect to the fourth groove 144 and the fifth groove 145, respectively. After assembly, a portion of the partition plate 21 is located within the fourth groove 144, a portion within the fifth groove 145, and a further portion within the sixth groove 146. This not only ensures a more secure installation of the partition plate 21 within the second housing 16 but also improves the isolation effect of the chambers 111 on both sides of the partition plate 21.

[0069] The arrangement direction of the fourth groove 144 and the fifth groove 145 is parallel to the arrangement direction of the first groove 141 and the second groove 142. The end of the fourth groove 144 away from the second housing 16 is connected to the sixth groove 146, and the end of the fifth groove 145 away from the second housing 16 is connected to the sixth groove 146.

[0070] In addition, the fourth slot 144, the fifth slot 145 and the sixth slot 146 can all be rectangular slots.

[0071] Furthermore, both the fourth groove 144 and the fifth groove 145 extend to the surface of the second housing 16 near the first housing 15, and the partition plate 21 can be inserted into the fourth groove 144 and the fifth groove 145 through the openings formed on the surface of the second housing 16 near the first housing 15.

[0072] like Figure 2 and Figure 7 As shown, in one embodiment, the partition component 2 further includes at least one connecting pipe 22, which connects to the partition plate 21 and communicates with the two silencing cavities 112, that is, the two silencing cavities 112 are connected by a connecting pipe 22.

[0073] Assuming the two silencing chambers 112 are the first silencing chamber and the second silencing chamber respectively, the connection pipe 22 connecting the first silencing chamber and the second silencing chamber actually means that the pipe hole of the connection pipe 22 connects the first silencing chamber and the second silencing chamber. During operation, the gas in the first silencing chamber can enter the second silencing chamber through the pipe hole of the connection pipe 22.

[0074] In addition, the number of connecting pipes 22 can be one less than the number of silencing cavities 112, so that the silencing cavities 112 can be connected in series through the connecting pipes 22.

[0075] It should be understood that there may be other chambers 111 between the first silencing cavity and the second silencing cavity, or there may be no other chambers 111 between the first silencing cavity and the second silencing cavity.

[0076] When there are other chambers 111 between the first silencing cavity and the second silencing cavity, each partition plate 21 has a first partition plate and a second partition plate, wherein the first partition plate is used to enclose and form the first silencing cavity, and the second partition plate is used to enclose and form the second silencing cavity, and the first silencing cavity, the first partition plate, the second partition plate and the second silencing cavity are arranged in sequence.

[0077] Additionally, when there is another chamber 111 between the first silencing chamber and the second silencing chamber, the partition plate 21 is provided with a clearance hole 211 (see reference). Figure 7 The clearance hole 211 penetrates the partition plate 21. Specifically, the clearance hole 211 can penetrate the partition plate 21 along the arrangement direction of each partition plate 21. After assembly, the connecting pipe 22 connects to the silencing cavity 112 from the clearance hole 211.

[0078] The clearance hole 211 on the first partition plate is defined as the first hole, and the clearance hole 211 on the second partition plate is defined as the second hole. The connecting pipe 22 connects to the first silencing cavity through the first hole, and the connecting pipe 22 connects to the second silencing cavity through the second hole.

[0079] The connection of the connecting pipe 22 to the first silencing cavity from the first hole can mean that the connecting pipe 22 is connected to the surface of the first partition plate away from the first silencing cavity, and the pipe hole of the connecting pipe 22 is connected to the first hole. In this case, the pipe hole of the connecting pipe 22 is connected to the first silencing cavity through the first hole; or, the connecting pipe 22 is inserted through the first hole and extends into the first silencing cavity so as to connect to the first silencing cavity.

[0080] The connection of the connecting pipe 22 to the second silencing cavity from the second hole can mean that the connecting pipe 22 is connected to the surface of the second partition plate away from the second silencing cavity, and the pipe hole of the connecting pipe 22 is connected to the second hole. In this case, the pipe hole of the connecting pipe 22 is connected to the second silencing cavity through the second hole; or, the connecting pipe 22 is inserted through the second hole and extends into the second silencing cavity so as to connect to the second silencing cavity.

[0081] In addition, when there is another chamber 111 between the first silencing chamber and the second silencing chamber, there may also be another partition (defined as a third partition) between the first partition and the second partition. In this case, the third partition is provided with an avoidance window 212. The avoidance window 212 passes through the third partition along the arrangement direction of each partition 21, and the connecting pipe 22 passes through the partition from the avoidance window.

[0082] When there is no other chamber 111 between the first silencing chamber and the second silencing chamber, the first silencing chamber and the second silencing chamber are separated by a partition plate 21 (defined as the fourth partition plate). At this time, the two can be directly connected through the clearance hole 211 on the fourth partition plate; or, the two can also be connected through a connecting pipe 22, in which case the connecting pipe 22 passes through the clearance hole 211 through the fourth partition plate, and its two ends extend into the first silencing chamber and the second silencing chamber respectively.

[0083] like Figure 2 and Figure 3 As shown, in one embodiment, the plurality of chambers 111 include a buffer chamber 113, and the buffer chamber 113 and the silencer chamber 112 are air-isolated; the silencer 10 also includes a buffer member 3, which is disposed in the buffer chamber 113. The buffer member 3 reduces the vibration of the partition plate 21, etc. of the silencer 10 during use, thereby improving the silencing effect.

[0084] The gas path isolation between the buffer chamber 113 and the silencer chamber 112 means that the gas in the silencer chamber 112 cannot flow to the buffer chamber 113, and the gas in the buffer chamber 113 cannot flow to the silencer chamber 112.

[0085] In one embodiment, the buffer 3 may be a sponge or the like.

[0086] In addition, in the arrangement direction of each partition plate 21, both sides of the buffer cavity 113 may have a sound-absorbing cavity 112, or the buffer cavity 113 may only have a sound-absorbing cavity 112 on one side.

[0087] like Figure 2 and Figure 7 As shown, in one embodiment, the muffler 10 further includes an air inlet pipe 4, which passes through the air inlet hole 12. One end of the air inlet pipe 4 is located outside the outer casing 1, and the other end extends into the receiving cavity 11. The air inlet pipe 4 connects to the muffler cavity 112, and the outlet of the end of the air inlet pipe 4 that extends into the receiving cavity 11 (i.e., the air outlet of the air inlet pipe 4) is opposite to the partition plate 21. During operation, the gas outside the muffler 10 (outside the outer casing 1) enters the muffler cavity 112 after passing through the air inlet hole 12 from the air inlet pipe 4. Alternatively, the air inlet pipe 4 can be the first air pipe mentioned above.

[0088] The fact that the air outlet of the air intake pipe 4 is opposite to the partition plate 21 can mean that at least a portion of the projection of the air outlet of the air intake pipe 4 overlaps with the projection of the partition plate 21 in an orthographic projection on a plane perpendicular to the arrangement direction of each partition plate 21.

[0089] By positioning the air outlet of the air inlet pipe 4 opposite to the partition plate 21, the gas can enter the receiving cavity 11 from the air inlet pipe 4 and then impact the partition plate 21, which helps to reduce noise.

[0090] Meanwhile, one end of the air intake pipe 4 is located outside the outer casing 1, which also facilitates the connection of the muffler 10 with pneumatic products.

[0091] The intake pipe 4 can also pass through a corresponding partition plate 21. The partition plate 21 through which the intake pipe 4 passes is defined as the fifth partition plate. The fifth partition plate is provided with a through hole 213, which penetrates the fifth partition plate along the arrangement direction of each partition plate 21. The intake pipe 4 passes through the fifth partition plate through the through hole 213. In addition, the intake pipe 4 and the fifth partition plate can be sealed to prevent gas leakage.

[0092] In one embodiment, the outlet end of the air inlet pipe 4 (i.e., the end that extends into the receiving cavity 11) may also be located outside the silencing cavity 112. The silencing cavity 112 into which the gas discharged from the outlet of the air inlet pipe 4 first enters is defined as the third silencing cavity 112. One of the partition plates 21 used to enclose and form the third silencing cavity 112 is a sixth partition plate. The sixth partition plate is located between the third silencing cavity and the air inlet pipe 4. The sixth partition plate is provided with a vent hole 214. The vent hole 214 penetrates the sixth partition plate along the arrangement direction of each partition plate 21. The outlet end of the air inlet pipe 4 abuts against the surface of the sixth partition plate away from the third silencing cavity 112, and the air inlet pipe 4 is connected to the third silencing cavity 112 through the vent hole.

[0093] like Figure 2 As shown, in one embodiment, the muffler 10 further includes an exhaust pipe 5, which is connected to the housing 1 and communicates with the muffler cavity 112 from the exhaust port 13. At least a portion of the exhaust pipe 5 is located outside the housing 1 to facilitate the connection of the muffler 10 to other components in the air circuit.

[0094] The vent pipe 5 can be located outside the outer shell 1 and connected to the outer surface of the outer shell 1. Alternatively, the vent pipe 5 can extend into the vent hole 13. In this case, the vent pipe 5 can extend into the receiving cavity 11 or not extend into the receiving cavity 11.

[0095] like Figure 2 and Figure 7As shown, in one embodiment, there are three partition plates 21 to divide the receiving cavity 11 into four chambers 111; the four chambers 111 are a first chamber 114, a second chamber 115, a third chamber 116, and a fourth chamber 117 arranged sequentially; the first chamber 114, the third chamber 116, and the fourth chamber 117 are silencing chambers 112; there are two connecting pipes 22, namely a first pipe 221 and a second pipe 222; the first pipe 221 connects the first chamber 114 and the third chamber 116, and the second pipe 222 connects the first chamber 114 and the fourth chamber 117; the air inlet 12 extends to the inner surface of the first chamber 114, and the air outlet 13 extends to the inner surface of the fourth chamber 117; the air inlet pipe 4 connects to the third chamber 116, and the end of the air inlet pipe 4 that extends into the receiving cavity 11 is opposite to the partition plate 21 between the third chamber 116 and the fourth chamber 117.

[0096] This increases the length of the gas flow path within the silencer 10, allowing the gas to more fully collide with the partition plate 21, thus improving the noise reduction effect.

[0097] In addition, the partition plate 21 between the first cavity 114 and the second cavity 115 is the fifth partition plate mentioned above, and the partition plate 21 between the second cavity 115 and the third cavity 116 is the sixth partition plate mentioned above.

[0098] This utility model embodiment also provides a vehicle, which includes a seat, a pneumatic product, and a muffler 10 as described in any of the above embodiments; wherein the pneumatic product is connected to the seat, and the muffler cavity 112 is connected to the pneumatic product.

[0099] Additionally, the pneumatic product includes an air bag connected to the seat; the air bag's exhaust port is connected to an air inlet 12 to allow air to pass through the air inlet 12 into the receiving cavity 11. In this embodiment, the exhaust operation of the air bag can be silenced by a muffler 10.

[0100] It should be understood that the above-mentioned settings can also be replaced in other ways, such as:

[0101] In other embodiments, the recess 14 may also be provided on the separator component 2, and the protrusion may be provided on the housing 1.

[0102] In other embodiments, the number of partition plates 21 may also be one, in which case the receiving cavity 11 can be divided into two chambers 111 by one partition plate 21.

[0103] In other embodiments, only the first housing 15 may have a first mounting hole 151, while the second housing 16 may not have a second mounting hole 161. In this case, the second housing 16 closes the first mounting hole 151 to form a receiving cavity 11. Alternatively, only the second housing 16 may have a second mounting hole 161, while the first housing 15 may not have a first mounting hole 151. In this case, the first housing 15 closes the second mounting hole 161 to form a receiving cavity 11.

[0104] In other embodiments, the first limiting structure 152 may be configured as a limiting protrusion and the second limiting structure 162 may be configured as a limiting groove.

[0105] In other embodiments, the recess 14 may also be provided on the first housing 15, in which case the second housing 16 may not have the recess 14; or, the recess 14 may also be provided on the second housing 16, in which case the first housing 15 may not have the recess 14.

[0106] In other embodiments, the air intake pipe 4 may also extend from the vent 214 through the sixth partition plate into the third silencing cavity 112.

[0107] In other embodiments, the air intake pipe 4 may be located outside the housing 1 and connected to the outer surface of the housing 1, communicating with the air intake port 12. In this case, after the gas flows out from the air intake pipe 4, it enters the air intake port 12, and after it flows out from the air intake port 12, it enters the silencer chamber 112. Alternatively, the air intake pipe 4 may extend into the air intake port 12. In this case, the air intake pipe 4 may extend into the receiving cavity 11, or it may not extend into the receiving cavity 11.

[0108] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0109] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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. Such 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 this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A sound damper for application to a vehicle seat to communicate to pneumatic products of the seat; characterized by, Includes the outer casing and partition components; The outer shell includes a receiving cavity, an air inlet, and an air outlet. The inner surface of the outer shell forms the receiving cavity, and both the air inlet and the air outlet penetrate the outer surface and the inner surface of the outer shell. The partition assembly is disposed within the receiving cavity and divides the receiving cavity into multiple chambers; The plurality of chambers include at least two silencing chambers for communication with the pneumatic product; The silencers are connected in series, so that the gas entering the receiving cavity from the air inlet passes through each of the silencers in sequence and is discharged from the air outlet.

2. The muffler of claim 1, wherein The partition component is detachably connected to the housing; The partition component is inserted into the housing so as to be detachably connected to the housing.

3. The muffler of claim 2, wherein The outer casing is provided with a recess; The partition assembly can be inserted into the recess to connect to the housing, and can be removed from the recess to detach from the housing.

4. The muffler of claim 3, wherein The recess is provided on the inner surface of the outer casing; and / or, The number of recesses is multiple; the partition assembly includes multiple partition plates, which are disposed within the receiving cavity to divide the receiving cavity into multiple chambers; each partition plate has a corresponding recess; each partition plate is inserted into its corresponding recess.

5. The muffler of claim 3 wherein, The outer casing includes a first casing and a second casing; The first housing and the second housing are detachably connected, and the first housing and the second housing are connected to form the receiving cavity; The recess is provided in the first housing; Alternatively, the recess may be disposed in the second housing; or, a portion of the recess may be disposed in the first housing, and another portion of the recess may be disposed in the second housing.

6. The muffler of claim 5, wherein The first housing has a first limiting structure on its surface near the second housing, and the second housing has a second limiting structure on its surface near the second housing; the surfaces of the first housing and the second housing near the second housing are in contact; the first limiting structure and the second limiting structure cooperate to limit the relative position of the first housing and the second housing; and / or, The first housing has a first mounting hole, and the second housing has a second mounting hole. The first mounting hole and the second mounting hole communicate to form the receiving cavity.

7. The muffler of claim 1, wherein The plurality of chambers include a buffer chamber, and the buffer chamber and the silencer chamber are air-isolated; The muffler also includes a buffer element disposed within the buffer cavity.

8. The muffler of claim 1, wherein The partition assembly includes at least one connecting pipe and at least one partition plate; at least one partition plate is disposed within the receiving cavity to divide the receiving cavity into a number of chambers; the connecting pipe connects to the partition plate and communicates with the two silencing chambers; The muffler also includes an air intake pipe, which passes through the air intake hole. One end of the air intake pipe is located outside the outer shell, and the other end of the air intake pipe extends into the receiving cavity. The air intake pipe communicates with the muffler cavity, and the opening of the end of the air intake pipe that extends into the receiving cavity is opposite to the partition plate. The muffler also includes an exhaust pipe connected to the housing and communicating with the muffler cavity from the exhaust port, with at least a portion of the exhaust pipe located outside the housing.

9. The muffler of claim 8, wherein The partition plates are arranged sequentially at intervals; The number of partition plates is three, so as to divide the receiving cavity into four chambers; the four chambers are arranged in sequence as a first chamber, a second chamber, a third chamber, and a fourth chamber; The first cavity, the third cavity, and the fourth cavity constitute the silencing cavity; There are two connecting pipes, namely the first pipe and the second pipe; The first tube connects the first cavity and the third cavity, and the second tube connects the first cavity and the fourth cavity; The air inlet extends through the inner surface of the first cavity, and the air outlet extends through the inner surface of the fourth cavity; The air intake pipe is connected to the third cavity, and the end of the air intake pipe that extends into the receiving cavity is opposite to the partition plate between the third cavity and the fourth cavity.

10. A vehicle characterized by comprising: Includes seats, pneumatic products, and the silencer as described in any one of claims 1 to 9; The pneumatic product is connected to the seat, and the silencing cavity is connected to the pneumatic product.

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