Sound wave conduction device and vehicle

Abstract

The present application provides a sound wave conduction device and a vehicle. The sound wave conduction device includes a main body part and a control part. The main body part includes at least two sound wave conduction parts, and each sound wave conduction part includes a sound wave sound cavity and a sound wave diaphragm located in the sound wave sound cavity. The sound wave sound cavity includes a sound wave oscillation cavity, a sound wave input cavity and a sound wave output cavity. The sound wave input cavity is blocked between the sound wave output cavity and is located on the same side of the sound wave diaphragm. The sound wave oscillation cavity is located on the other side of the sound wave diaphragm. When the gas fluctuation intensities in the respective sound wave input cavities are the same, the at least two sound wave conduction parts are configured such that the vibration frequencies generated by different sound wave diaphragms are different. The main body part is further provided with an inlet and an outlet. The sound wave input cavity is communicated with the inlet, and the adjacent sound wave output cavities are blocked. The control part is arranged between the sound wave output cavity and the outlet. Alternatively, the sound wave output cavity is communicated with the outlet, the adjacent sound wave input cavities are blocked, and the control part is arranged between the sound wave input cavity and the inlet.

Description

Technical Field

[0001] This application relates to the technical field of automobiles, and particularly to a sound wave conduction device and a vehicle. Background Art

[0002] As users' requirements for automobile performance are getting higher and higher, users are not only satisfied with the drivability of automobiles, but also begin to pursue a better driving experience. The engine sound wave of an automobile reflects the power performance of the engine to a certain extent. A dynamic engine sound wave can stimulate users' driving interest and enable users to obtain a better driving experience.

[0003] In one solution, a sound wave conduction device connected to the engine intake pipe is provided to improve the sound wave effect in the cab. However, the sound wave effect conducted to the cab by the existing sound wave conduction device is relatively single, which is not conducive to enhancing the driving experience of users. Summary of the Invention

[0004] This application provides a sound wave conduction device and a vehicle.

[0005] According to the first aspect of the embodiments of this application, a sound wave conduction device and a vehicle are provided. The sound wave conduction device includes a main body part and a control part;

[0006] The main body part includes at least two sound wave conduction parts. Each sound wave conduction part includes a sound wave sound cavity and a sound wave diaphragm located in the sound wave sound cavity. The sound wave sound cavity includes a sound wave oscillation cavity, a sound wave input cavity, and a sound wave output cavity; the sound wave input cavity and the sound wave output cavity are blocked and are on the same side of the sound wave diaphragm; the sound wave oscillation cavity is on the other side of the sound wave diaphragm; when the gas fluctuation intensities in the sound wave input cavities are the same, the vibration frequencies generated by different sound wave diaphragms are different;

[0007] The main body part is further provided with an inlet and an outlet; the sound wave input cavity is communicated with the inlet, and adjacent sound wave output cavities are blocked. The control part is arranged between the sound wave output cavity and the outlet, and the control part is configured to control the communication or non-communication between each sound wave output cavity and the outlet; or, the sound wave output cavity is communicated with the outlet, and adjacent sound wave input cavities are blocked. The control part is arranged between the sound wave input cavity and the inlet, and the control part is configured to control the communication or non-communication between each sound wave input cavity and the inlet.

[0008] In one embodiment, among different sound wave cavities, the shape of at least one of the sound wave oscillation cavity, the sound wave input cavity, and the sound wave output cavity is different; or, among different sound wave cavities, the volume of at least one of the sound wave oscillation cavity, the sound wave input cavity, and the sound wave output cavity is different.

[0009] In one embodiment, the thickness of the sound wave diaphragm of different sound wave conduction parts is different, and / or the material of the sound wave diaphragm of different sound wave conduction parts is different.

[0010] In one embodiment, the middle region of the sound wave diaphragm is fixedly arranged, and the gas fluctuations in each sound wave input cavity cause the unfixed region of the sound wave diaphragm to vibrate; or,

[0011] The edge region of the sound wave diaphragm is fixedly arranged, and the gas fluctuations in each sound wave input cavity cause the unfixed region of the sound wave diaphragm to vibrate.

[0012] In one embodiment, the orthographic projection of the sound wave oscillation cavity on the sound wave diaphragm at least partially coincides with the orthographic projection of the sound wave input cavity on the sound wave diaphragm, and the orthographic projection of the sound wave oscillation cavity on the sound wave diaphragm at least partially coincides with the orthographic projection of the sound wave output cavity on the sound wave diaphragm.

[0013] In one embodiment, the sound wave oscillation cavity includes an oscillation input cavity and an oscillation output cavity, the sound wave conduction part further includes a partition board, the partition board is arranged between the oscillation input cavity and the oscillation output cavity, and the partition board isolates the oscillation input cavity and the oscillation output cavity; the orthographic projection of the oscillation output cavity on the sound wave diaphragm at least partially coincides with the orthographic projection of the sound wave input cavity on the sound wave diaphragm, and the orthographic projection of the oscillation output cavity on the sound wave diaphragm at least partially coincides with the orthographic projection of the sound wave output cavity on the sound wave diaphragm.

[0014] In one embodiment, when the control part is arranged between the sound wave output cavity and the outlet, each sound wave input cavity is communicated; or, when the control part is arranged between the sound wave input cavity and the inlet, each sound wave output cavity is communicated.

[0015] In one embodiment, the control part includes a rotating shaft and a plurality of baffles arranged around the rotating shaft, and the rotating shaft can drive the baffles to rotate; when the control part is arranged between the sound wave output cavity and the outlet, the rotation of the rotating shaft causes the baffles to isolate at least one of the sound wave output cavities from the outlet, or causes each sound wave output cavity to be communicated with the outlet; when the control part is arranged between the sound wave input cavity and the inlet, the rotation of the rotating shaft causes the baffles to isolate at least one of the sound wave input cavities from the inlet, or causes each sound wave input cavity to be communicated with the inlet; or,

[0016] When the control part is arranged between the sound wave output cavity and the outlet, the control part includes a control valve located between each sound wave output cavity and the outlet, and the control valve is configured to control the communication or blockage between the sound wave output cavity and the outlet; when the control part is arranged between the sound wave input cavity and the inlet, the control part includes a control valve located between each sound wave output cavity and the outlet, and the control valve is configured to control the communication or blockage between the sound wave input cavity and the inlet.

[0017] In one embodiment, the main body part includes two oppositely arranged sound wave conduction parts, the control part includes a rotating shaft and four baffles arranged around the rotating shaft at equal intervals, and one of the baffles is provided with a through hole, and the rotating shaft can drive the baffles to rotate;

[0018] When the control part is arranged between the sound wave output cavity and the outlet, the rotating shaft drives the baffles to rotate, so that one of the sound wave output cavities communicates with the outlet through the through hole, or two of the sound wave output cavities respectively communicate with the outlet through the gaps between the baffles and the wall of the main body part; when the control part is arranged between the sound wave input cavity and the inlet, the rotating shaft drives the baffles to rotate, so that one of the sound wave input cavities communicates with the inlet through the through hole, or two of the sound wave input cavities respectively communicate with the inlet through the gaps between the baffles and the wall of the main body part.

[0019] The second aspect of the embodiments of the present application provides a vehicle, the vehicle includes a cab, an engine, a sound wave output pipe and the above-mentioned sound wave conduction device; the engine includes an intake pipe, the intake pipe communicates with the inlet of the main body part, one end of the sound wave output pipe communicates with the outlet of the main body part, and the other end of the sound wave output pipe communicates with the cab.

[0020] For the sound wave conduction device and the vehicle provided by the embodiments of the present application, after the external high-pressure gas enters the sound wave input cavity, the fluctuation of the high-pressure gas drives the sound wave diaphragm to vibrate, the sound wave oscillation cavity changes the vibration frequency of the sound wave diaphragm, the vibration of the sound wave diaphragm drives the gas in the sound wave output cavity to fluctuate, and the vibration frequency of the gas in the sound wave output cavity is different from that of the gas in the sound wave input cavity. The pressure fluctuation in the sound wave output cavity is conducted to the cab of the vehicle through the outlet, changing the sound wave effect in the cab. Since when the gas fluctuations in the sound wave input cavity are the same, the vibration frequencies generated by different sound wave diaphragms are different, the fluctuation frequencies of the gas in the sound wave output cavities of different sound wave conduction parts are different.

[0021] When the control unit is arranged between the sound wave output cavity and the outlet, the adjacent sound wave output cavities are blocked, that is, the gas fluctuations in the sound wave output cavity will not be affected by the gas pressure waves in other sound wave output cavities. When the control unit controls the connection between the sound wave output cavity and the outlet, the gas fluctuations in this sound wave output cavity can be conducted to the cab of the vehicle through the outlet; when the control unit controls the disconnection between the sound wave output cavity and the outlet, the gas fluctuations in this sound wave output cavity cannot be conducted to the cab of the vehicle. Therefore, the control unit can control only one sound wave output cavity to be connected to the outlet to achieve the conduction of a single pressure fluctuation (referring to the pressure fluctuation conducted when only one sound wave output cavity is connected to the outlet) to the cab, and controlling different sound wave output cavities to be connected to the outlet can achieve different single pressure fluctuations conducted to the cab, or multiple sound wave output cavities can be controlled to be connected to the outlet simultaneously to achieve the conduction of the mixed pressure fluctuations of multiple sound wave output cavities to the cab.

[0022] When the control unit is arranged between the sound wave input cavity and the inlet, the adjacent sound wave input cavities are blocked, that is, the gas fluctuations in each sound wave input cavity will not be affected by the gas pressure waves in other sound wave input cavities; when the control unit controls the connection between the sound wave input cavity of the sound wave conduction part and the inlet, the external high-pressure gas can be conducted to the sound wave input cavity through the inlet, and then cause the gas in the sound wave output cavity to fluctuate and be conducted to the cab through the outlet; when the control unit controls the disconnection between the sound wave input cavity of the sound wave conduction part and the inlet, the external high-pressure gas cannot be conducted to the sound wave input cavity through the inlet and cannot cause the gas in the sound wave output cavity to fluctuate; therefore, the control unit can control any sound wave input cavity to be connected to the inlet to achieve the conduction of a single pressure fluctuation (referring to the pressure fluctuation conducted when only one sound wave output cavity is connected to the outlet) to the cab, and controlling different sound wave input cavities to be connected to the inlet can achieve different single pressure fluctuations conducted to the cab, or multiple sound wave input cavities can be controlled to be connected to the inlet simultaneously to achieve the conduction of the mixed pressure fluctuations of multiple sound wave output cavities to the cab.

[0023] It can be seen that the sound wave conduction device provided by the embodiment of the present application can conduct different gas fluctuations to the cab, so as to produce different sound wave effects in the cab, which is beneficial to improving the driving experience of users.

[0024] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. Description of the Drawings

[0025] The drawings here are incorporated into the specification and form a part of this specification, showing the embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0026] Figure 1 Exploded schematic view of the sound wave conduction device provided by an embodiment of the present application;

[0027] Figure 2 is Figure 1 Cross-sectional view of the sound wave conduction device shown;

[0028] Figure 3 Cross-sectional view of the sound wave conduction device provided by another embodiment of the present application. Detailed implementation manners

[0029] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0030] The terms used in the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The singular forms "a", "the", and "said" used in the present application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0031] It should be understood that the "first", "second", and similar terms used in the specification and claims of the present application do not indicate any order, quantity, or importance, but are only used to distinguish different components. Similarly, the similar terms such as "one" or "a" do not indicate a quantity limitation, but indicate that there is at least one. Unless otherwise specified, the similar terms such as "front part", "rear part", "lower part", and / or "upper part" are only for convenience of description and are not limited to one position or a spatial orientation. The terms "including" or "comprising" and the like are intended to mean that the elements or items appearing before "including" or "comprising" cover the elements or items listed after "including" or "comprising" and their equivalents, and do not exclude other elements or items.

[0032] Next, with reference to the drawings, the sound wave conduction device and the vehicle of the embodiments of the present application will be described in detail. Without conflict, the features in the following embodiments and implementation manners can be mutually supplemented or combined.

[0033] An embodiment of the present application provides a vehicle, which includes a cab, an engine, a sound wave output pipe, and a sound wave conduction device. The engine includes an intake pipe, the sound wave conduction device includes an inlet and an outlet, the intake pipe is communicated with the inlet of the sound wave conduction device, one end of the sound wave output pipe is communicated with the outlet of the sound wave conduction device, and the other end of the sound wave output pipe is communicated with the cab.

[0034] As Figures 1 to 3 shown, the sound wave conduction device 100 provided in the embodiment of the present application includes a main body portion 10 and a control portion 20.

[0035] The main body portion 10 includes at least two sound wave conduction portions 11, and each sound wave conduction portion 11 includes a sound wave sound cavity 12 and a sound wave diaphragm 13 located in the sound wave sound cavity 12. The sound wave sound cavity 12 includes a sound wave oscillation cavity 121, a sound wave input cavity 122, and a sound wave output cavity 123. The sound wave input cavity 122 and the sound wave output cavity 123 are blocked and located on the same side of the sound wave diaphragm 13; the sound wave oscillation cavity 121 is located on the other side of the sound wave diaphragm 13. When the gas fluctuation intensities in the sound wave input cavities 122 are the same, the at least two sound wave conduction portions 11 are configured such that the vibration frequencies generated by different sound wave diaphragms 13 are different.

[0036] The main body portion 10 is further provided with an inlet 101 and an outlet 102. As Figure 1 and Figure 2 shown, the sound wave input cavity 122 is communicated with the inlet 101, the adjacent sound wave output cavities 123 are blocked, the control portion 20 is arranged between the sound wave output cavity 123 and the outlet 102, and the control portion 20 is configured to control the communication or non-communication between the sound wave output cavity 123 and the outlet 102. Or, as Figure 3 shown, the sound wave output cavity 123 is communicated with the outlet 102, the adjacent sound wave input cavities 122 are blocked, the control portion 20 is arranged between the sound wave input cavity 122 and the inlet 101, and the control portion 20 is configured to control the communication or non-communication between each sound wave input cavity 122 and the inlet 101.

[0037] Wherein, the vibration frequency of the sound wave diaphragm 13 affects the frequency of the gas fluctuation conducted to the sound wave output cavity 123, and the frequency of the gas pressure fluctuation in the sound wave output cavity affects the gas fluctuation frequency in the cab, that is, it affects the sound wave effect in the cab.

[0038] In the sound wave conduction device 100 provided by the embodiment of the present application, after the external high-pressure gas enters the sound wave input cavity 122, the fluctuation of the high-pressure gas drives the sound wave diaphragm to vibrate. The sound wave oscillation cavity changes the vibration frequency of the sound wave diaphragm. The vibration of the sound wave diaphragm drives the gas in the sound wave output cavity to fluctuate, and the vibration frequency of the gas in the sound wave output cavity is different from that of the gas in the sound wave input cavity. The pressure fluctuation in the sound wave output cavity is conducted to the cab of the vehicle through the outlet, changing the sound wave effect in the cab. Since the gas fluctuations in the sound wave input cavity 122 are the same, the vibration frequencies generated by different sound wave diaphragms 13 are different, so the fluctuation frequencies of the gas in the sound wave output cavities of different sound wave conduction parts 11 are different.

[0039] When the control part 20 is arranged between the sound wave output cavity 123 and the outlet 102, the adjacent sound wave output cavities 123 are blocked, that is, the gas fluctuation in the sound wave output cavity 123 will not be affected by the gas pressure wave in other sound wave output cavities 123. When the control part 20 controls the connection between the sound wave output cavity 123 and the outlet 102, the gas fluctuation in this sound wave output cavity 123 can be conducted to the cab of the vehicle through the outlet 102; when the control part 20 controls the non-connection between the sound wave output cavity 123 and the outlet 102, the gas fluctuation in this sound wave output cavity 123 cannot be conducted to the cab of the vehicle. Therefore, the control part 20 can control only one sound wave output cavity 123 to be connected to the outlet 102 to realize the conduction of a single pressure fluctuation (referring to the pressure fluctuation conducted when only one sound wave output cavity 123 is connected to the outlet 102) to the cab, and controlling different sound wave output cavities 123 to be connected to the outlet 102 can realize the conduction of different single pressure fluctuations to the cab, or multiple sound wave output cavities 123 can be controlled to be connected to the outlet 102 simultaneously to realize the conduction of the mixed pressure fluctuation of multiple sound wave output cavities 123 to the cab.

[0040] When the control unit 20 is disposed between the sound wave input cavity 122 and the inlet 101, the spaces between adjacent sound wave input cavities 122 are blocked, that is, the gas fluctuations in each sound wave input cavity 122 will not be affected by the gas pressure waves in other sound wave input cavities 122. When the control unit 20 controls the communication between the sound wave input cavity 122 of the sound wave conduction part 11 and the inlet 101, the external high-pressure gas can be conducted to the sound wave input cavity 122 through the inlet 101, thereby causing the gas in the sound wave output cavity 123 to fluctuate, and being conducted to the cab through the outlet 102. When the control unit 20 controls the non-communication between the sound wave input cavity 122 of the sound wave conduction part 11 and the inlet 101, the external high-pressure gas cannot be conducted to the sound wave input cavity 122 through the inlet 101, and the gas in the sound wave output cavity 123 cannot be caused to fluctuate. Therefore, the control unit 20 can control any sound wave input cavity 122 to communicate with the inlet 101 to realize the conduction of a single pressure fluctuation (referring to the pressure fluctuation conducted when only one sound wave input cavity 122 communicates with the inlet 101) to the cab, and controlling different sound wave input cavities 122 to communicate with the inlet 101 can realize the conduction of different single pressure fluctuations to the cab. It is also possible to control multiple sound wave input cavities 122 to communicate with the inlet 101 simultaneously to realize the conduction of the mixed pressure fluctuations of multiple sound wave output cavities to the cab. It can be seen that the sound wave conduction device provided by the embodiment of the present application can conduct different gas fluctuations to the cab, so as to generate different sound wave effects in the cab, which is beneficial to improving the driving experience of users.

[0041] In the embodiment of the present application, different gas fluctuations mainly refer to different frequency bands of gas fluctuations. For example, the frequency bands of gas fluctuations in the sound wave input cavity 122 include 270 Hz - 290 Hz, 410 Hz - 430 Hz, 340 Hz - 360 Hz, and 510 Hz - 530 Hz, and the frequency bands of gas fluctuations in the sound wave output cavity 123 include 270 Hz - 290 Hz and 410 Hz - 430 Hz. It can be seen that the frequency bands of gas fluctuations in the sound wave input cavity 122 are different from those in the sound wave output cavity 123, and some frequency bands of gas fluctuations are eliminated, so the sound wave effect in the cab can be optimized.

[0042] In one embodiment, the sound wave conduction device provided by the embodiments of the present application includes three sound wave conduction parts 11. The sound wave conduction device can conduct three different single pressure fluctuations and four different mixed pressure fluctuations to the cab. The four mixed pressure fluctuations include three pressure fluctuations after mixing the pressure fluctuations of two sound wave conduction parts 11 and one pressure fluctuation after mixing the pressure fluctuations of three sound wave conduction parts 11. Among them, when the control part 20 arranged between the inlet 101 and the sound wave input cavity 122 controls the inlet 101 to be communicated with both of the two sound wave input cavities 122, or when the control part 20 arranged between the outlet 102 and the sound wave output cavity 123 controls the outlet to be communicated with both of the two sound wave output cavities 123, the sound wave conduction device conducts the pressure fluctuation after mixing the pressure fluctuations of two sound wave conduction parts 11 to the cab; when the control part 20 arranged between the inlet 101 and the sound wave input cavity 122 controls the inlet 101 to be communicated with all three sound wave input cavities 122, or when the control part 20 arranged between the outlet 102 and the sound wave output cavity 123 controls the outlet to be communicated with all three sound wave output cavities 123, the sound wave conduction device conducts the pressure fluctuation after mixing the pressure fluctuations of three sound wave conduction parts 11 to the cab.

[0043] In one embodiment, as Figures 1 to 3 shown, the sound wave conduction device 100 provided by the embodiments of the present application includes two sound wave conduction parts 11. The sound wave conduction device can conduct two different single pressure fluctuations and one mixed pressure fluctuation to the cab. The mixed pressure fluctuation is the pressure fluctuation after mixing the pressure fluctuations in the sound wave output cavities of the two sound wave conduction parts.

[0044] For the sound wave conduction device provided by the embodiments of the present application, the working principle of the sound wave conduction part is as follows:

[0045] External high-pressure gas enters the sound wave input cavity 122. The fluctuation of the high-pressure gas drives the sound wave diaphragm 13 to vibrate, and the vibration of the sound wave diaphragm 13 drives the gas in the sound wave oscillation cavity 121 to fluctuate. The gas fluctuation in the sound wave oscillation cavity 121 is reflected by the inner wall of the sound wave oscillation cavity 121 to form a reflected wave and acts on the sound wave diaphragm. The reflected wave reduces the vibration of some frequency bands of the sound wave diaphragm, changing the vibration frequency of the sound wave diaphragm (the vibration frequency band changes). The vibration of the sound wave diaphragm 13 drives the gas in the sound wave output cavity 123 to fluctuate. Since the initial vibration frequency of the sound wave diaphragm 13 is caused by the gas fluctuation in the sound wave input cavity 122, and the vibration of the sound wave diaphragm 13 causes the gas in the sound wave output cavity 123 to fluctuate after the vibration frequency of the sound wave diaphragm 13 changes, the gas fluctuation frequency in the sound wave output cavity 123 is different from the gas fluctuation frequency in the sound wave input cavity 122.

[0046] When the sound wave conduction device provided by the embodiment of the present application is used in a vehicle, the inlet 101 is communicated with the intake pipe of the engine, and the high-pressure gas in the intake pipe of the engine enters the sound wave input cavity through the inlet 101.

[0047] In one embodiment, the orthographic projection of the sound wave oscillation cavity 121 on the sound wave diaphragm 13 at least partially coincides with the orthographic projection of the sound wave input cavity 122 on the sound wave diaphragm 13, and the orthographic projection of the sound wave oscillation cavity 121 on the sound wave diaphragm 13 at least partially coincides with the orthographic projection of the sound wave output cavity 123 on the sound wave diaphragm 13. With such a setting, after the gas fluctuation in the sound wave input cavity 122 drives the sound wave diaphragm 13 to vibrate, the vibration of the sound wave diaphragm 13 drives the gas fluctuation in the sound wave oscillation cavity 121, and the gas fluctuation is reflected by the inner surface of the sound wave oscillation cavity 121 to form a reflected wave. The volume of the sound wave oscillation cavity 121 is relatively large, which is more conducive to changing the vibration frequency of the sound wave diaphragm 13.

[0048] Further, the orthographic projection of the sound wave oscillation cavity 121 on the sound wave diaphragm 13 covers the orthographic projection of the sound wave input cavity 122 on the sound wave diaphragm 13, and the orthographic projection of the sound wave oscillation cavity 121 on the sound wave diaphragm 13 covers the orthographic projection of the sound wave output cavity 123 on the sound wave diaphragm 13.

[0049] In one embodiment, the sound wave oscillation cavity 121 includes an oscillation input cavity 1211 and an oscillation output cavity 1212. The sound wave conduction part 11 further includes a partition 14. The partition 14 is arranged between the oscillation input cavity 1211 and the oscillation output cavity 1212, and the partition 14 isolates the oscillation input cavity 1211 and the oscillation output cavity 1212. The oscillation of the gas fluctuation in the oscillation input cavity 1211 acts on a part of the area of the sound wave diaphragm 13, and the oscillation of the gas fluctuation in the oscillation output cavity 1212 acts on another part of the area of the sound wave diaphragm 13. By adjusting the shape or volume of the oscillation input cavity 1211 or the oscillation output cavity 1212, it is more helpful to change the frequency of the gas fluctuation in the sound wave output cavity, which is beneficial to generating the required sound wave effect in the cab.

[0050] Further, the orthographic projection of the oscillation input cavity 1211 on the sound wave diaphragm 13 at least partially coincides with the orthographic projection of the sound wave input cavity 122 on the sound wave diaphragm 13, and the orthographic projection of the oscillation output cavity 1212 on the sound wave diaphragm 13 at least partially coincides with the orthographic projection of the sound wave output cavity 123 on the sound wave diaphragm 13.

[0051] Further, the orthographic projection of the oscillation input cavity 1211 on the sound wave diaphragm 13 substantially coincides with the orthographic projection of the sound wave input cavity 122 on the sound wave diaphragm 13, and the orthographic projection of the oscillation output cavity 1212 on the sound wave diaphragm 13 substantially coincides with the orthographic projection of the sound wave output cavity 123 on the sound wave diaphragm 13.

[0052] In one embodiment, as Figure 1 shown, the main body portion 10 includes a housing, the housing includes a main housing portion 103 and at least two end caps 104, the end caps 104 are covered on the main housing portion 103, and the sound wave diaphragm 13 is disposed between the main housing portion 103 and the end caps 104. A sound wave input cavity 122 is formed between the main housing portion 103 and the sound wave diaphragm 13, and a sound wave oscillation cavity 121 is formed between the end caps 104 and the sound wave diaphragm 13. In this way, it is convenient to dispose the sound wave diaphragm 13 inside the main body portion 10. In some embodiments, the end caps 104 may be disposed on the main housing portion 103 in a detachable manner, or may be disposed on the main housing portion 103 by a welding process.

[0053] In one embodiment, the housing further includes an air inlet joint 105 and an output joint 106, and the air inlet joint 105 and the output joint 106 are respectively communicated with the cavity inside the main housing portion 103. The end of the air inlet joint 105 is an inlet 101, and the end of the output joint 106 is an outlet 102. In some embodiments, the air inlet joint 105 and the output joint 106 may be integrally formed with the main housing portion 103 respectively. In other embodiments, the air inlet joint 105 and the output joint 106 may also be connected to the main housing portion 103 in a detachable manner. By providing the air inlet joint 105 and the output joint 106, it is convenient to connect the sound wave conduction device 100 with other components. When the sound wave conduction device is used for a vehicle, the air inlet joint 105 is connected to the intake pipe of the engine, and the output joint 106 is communicated with the cab.

[0054] In one embodiment, the material of the housing may be an engineering plastic. For example, the material of the housing may be a mixed material of PA6 (Polyamide-6, nylon plastic polyamide 6) and GF (Glass Fiber), and the mass fraction of the glass fiber may be 30%. Using the above materials can make the housing have better rigidity and strength, and at the same time have a smaller density, which is beneficial to reducing the weight of the sound wave conduction device 100. In other embodiments, the material of the housing may also be other materials such as steel.

[0055] In one embodiment, as Figure 1 and Figure 2As shown, a retaining wall 107 is provided inside the housing. The retaining wall 107 is disposed between the sound wave input cavity 122 and the sound wave output cavity 123, sealing the space between the sound wave input cavity 122 and the sound wave output cavity 123. This can prevent the gas fluctuations in the sound wave input cavity 122 and the sound wave output cavity 123 from affecting each other. At the same time, it can improve the tightness of the sound wave input cavity 122, making it more conducive to conducting the gas fluctuations in the sound wave input cavity 122 to the sound wave diaphragm 13.

[0056] In one embodiment, among different sound wave cavities 12, the shape of at least one of the sound wave oscillation cavity 121, the sound wave input cavity 122, and the sound wave output cavity 123 is different; or, among different sound wave cavities 12, the volume of at least one of the sound wave oscillation cavity 121, the sound wave input cavity 122, and the sound wave output cavity 123 is different. After the reflected waves reflected from the inner walls of the sound wave oscillation cavity 121, the sound wave input cavity 122, and the sound wave output cavity 123 act on the sound wave diaphragm 13, the vibration frequency of the sound wave diaphragm 13 will change. When any one of the sound wave oscillation cavity 121, the sound wave input cavity 122, and the sound wave output cavity 123 has a different shape or volume, the frequency bands at which the reflected waves reduce the vibration frequency of the sound wave diaphragm 13 are different, and the gas fluctuation frequencies in the sound wave output cavity 123 caused by the sound wave diaphragm 13 are also different.

[0057] In some embodiments, for example, the volumes of the sound wave input cavities 122 of different sound wave conducting parts 11 are different, and the shapes of the sound wave input cavities 122 of different sound wave conducting parts 11 may be the same or different. The volumes and shapes of the sound wave output cavities 123 of different sound wave conducting parts 11 may be the same or different, and the volumes and shapes of the sound wave oscillation cavities 121 of different sound wave conducting parts 11 may be the same or different. Or, the shapes of the sound wave input cavities 122 of different sound wave conducting parts 11 are different, and the volumes of the sound wave input cavities 122 of different sound wave conducting parts 11 may be the same or different. The volumes and shapes of the sound wave output cavities 123 of different sound wave conducting parts 11 may be the same or different, and the volumes and shapes of the sound wave oscillation cavities 121 of different sound wave conducting parts 11 may be the same or different. Or, the shapes of the sound wave output cavities 123 of different sound wave conducting parts 11 are different, and the volumes of the sound wave output cavities 123 of different sound wave conducting parts 11 may be the same or different. The volumes and shapes of the sound wave input cavities 122 of different sound wave conducting parts may be the same or different, and the volumes and shapes of the sound wave oscillation cavities 121 of different sound wave conducting parts may be the same or different. Or, the volumes of the sound wave output cavities 123 of different sound wave conducting parts are different, and the shapes of the sound wave output cavities 123 of different sound wave conducting parts 11 may be the same or different. The volumes and shapes of the sound wave input cavities 122 of different sound wave conducting parts 11 may be the same or different, and the volumes and shapes of the sound wave oscillation cavities 121 of different sound wave conducting parts 11 may be the same or different. Or, the shapes of the sound wave oscillation cavities 121 of different sound wave conducting parts 11 are different, and the volumes of the sound wave oscillation cavities 121 of different sound wave conducting parts 11 may be the same or different. The volumes and shapes of the sound wave input cavities 122 of different sound wave conducting parts 11 may be the same or different, and the volumes and shapes of the sound wave output cavities 123 of different sound wave conducting parts 11 may be the same or different. Or, the volumes of the sound wave oscillation cavities 121 of different sound wave conducting parts 11 are different, and the shapes of the sound wave oscillation cavities 121 of different sound wave conducting parts may be the same or different. The volumes and shapes of the sound wave input cavities 122 of different sound wave conducting parts 11 may be the same or different, and the volumes and shapes of the sound wave output cavities 123 of different sound wave conducting parts 11 may be the same or different.

[0058] In one embodiment, the thicknesses of the sound wave diaphragms 13 of different sound wave conducting parts 11 are different, and / or the materials of the sound wave diaphragms 13 of different sound wave conducting parts 11 are different. When the gas fluctuation frequencies of the sound wave input cavities 122 are the same, if the thicknesses of the sound wave diaphragms 13 of different sound wave conducting parts 11 are different, the vibration frequencies of the sound wave diaphragms 13 caused by the gas fluctuations in the sound wave input cavities 122 are different. When the gas fluctuation frequencies of the sound wave input cavities 122 are the same, if the materials of the sound wave diaphragms 13 of different sound wave conducting parts 11 are different, the vibration frequencies of the sound wave diaphragms 13 caused by the gas fluctuations in the sound wave input cavities 122 are different.

[0059] In some embodiments, for example, the thicknesses of the sound wave diaphragms 13 of different sound wave conduction parts 11 are different, and the materials of the sound wave diaphragms 13 of different sound wave conduction parts 11 may be the same or different. Alternatively, the materials of the sound wave diaphragms 13 of different sound wave conduction parts 11 are different, and the thicknesses of the sound wave diaphragms 13 of different sound wave conduction parts 11 may be the same or different.

[0060] In some embodiments, the material of the sound wave diaphragm 13 may be plastic or a metallic material.

[0061] In one embodiment, the middle region of the sound wave diaphragm 13 is fixedly arranged, and the other regions are not fixed. The gas fluctuations in each sound wave input cavity 122 cause the unfixed regions of the sound wave diaphragm 13 to vibrate. The gas fluctuations in the sound wave input cavity 122 are conducted to the sound wave diaphragm 13, causing the unfixed regions of the sound wave diaphragm 13 to vibrate relative to the fixed regions, that is, the unfixed regions of the sound wave diaphragm 13 will generate periodic or non-periodic minute displacements. Since the middle region of the sound wave diaphragm 13 is fixed, when the sound wave input cavity 122 causes the part of the sound wave diaphragm 13 opposite to the sound wave input cavity 122 to vibrate, the vibration of this part will be conducted to the part of the sound wave diaphragm 13 opposite to the sound wave output cavity 123, so that the unfixed regions of the entire sound wave diaphragm 13 vibrate.

[0062] Further, the middle region of the sound wave diaphragm 13 can be fixed to the retaining wall 107 and the partition 14. Since the thicknesses of the retaining wall 107 and the partition 14 can be set to be relatively small, the contact area between the sound wave diaphragm 13 and the retaining wall 107 can be made relatively small, that is, the area where the sound wave diaphragm 13 is fixed is relatively small, which is beneficial to reducing the influence of the retaining wall 107 on the vibration of the sound wave diaphragm 13.

[0063] Further, a groove 108 is formed on the inner surface of the housing, and the edge of the sound wave diaphragm 13 extends into the groove 108. The sound wave conduction part 11 further includes a seal (not shown), the material of the seal is an elastic material, the seal is arranged in the gap between the edge region of the sound wave diaphragm 13 and the wall of the groove 108, the seal is provided with a receiving groove, the edge of the sound wave diaphragm 13 extends into the receiving groove, and the opposite end faces of the seal are respectively abutted against the opposite two inner surfaces of the groove 108. Since the material of the seal is an elastic material, that is, the seal can expand and contract within a certain range, the seal will not hinder the vibration of the sound wave diaphragm 13. At the same time, the seal can make the sound wave input cavity 122 have better sealing performance, which is beneficial to the gas fluctuations in the sound wave input cavity 122 and the sound wave oscillation cavity 121 to fully act on the sound wave diaphragm 13, and helps to change the vibration frequency of the sound wave diaphragm 13.

[0064] In another embodiment, the edge region of the sound wave diaphragm 13 is fixedly arranged, and the gas fluctuations in each of the sound wave input cavities 122 cause the unfixed region of the sound wave diaphragm 13 to vibrate. In this embodiment, the fixed arrangement of the edge region of the sound wave diaphragm 13 means that the outermost region of the sound wave diaphragm 13 is fixedly arranged, and the unfixed region of the sound wave diaphragm 13 can be arranged in a suspended manner. When the gas fluctuations act on the sound wave diaphragm 13, the suspended part of the sound wave diaphragm 13 vibrates. In some embodiments, the edge region of the sound wave diaphragm 13 can be clamped between the main housing part 103 and the end cover 104 to achieve the fixation of the sound wave diaphragm 13. In this way, the internal structure of the sound wave conduction part 11 can be simplified, and at the same time, the installation and fixation of the sound wave diaphragm 13 are facilitated.

[0065] In one embodiment, when the control part 20 is arranged between the sound wave output cavity 123 and the outlet 102, each of the sound wave input cavities 122 communicates; or, when the control part 20 is arranged between the sound wave input cavity 122 and the inlet 101, each of the sound wave output cavities 123 communicates. With such an arrangement, the internal structure of the sound wave input cavity 122 can be simplified. When each of the sound wave input cavities 122 communicates, the high-pressure gas can enter the sound wave input cavities 122 of each of the sound wave conduction parts 11 through the inlet 101 at the same time; when each of the sound wave output cavities 123 communicates, the gas fluctuations generated by different sound wave conduction parts 11 can be mixed in the sound wave output cavity 123.

[0066] In one embodiment, as Figure 2 and Figure 3 shown, the control part 20 includes a rotating shaft 21 and a plurality of baffles 22 arranged around the rotating shaft 21, and the rotating shaft 21 can drive the baffles 22 to rotate. When the control part 20 is arranged between the sound wave output cavity 123 and the outlet 102, the rotation of the rotating shaft 21 causes the baffle 22 to isolate at least one of the sound wave output cavities 123 from the outlet 102, or to communicate each of the sound wave output cavities 123 with the outlet 102. When the control part 20 is arranged between the sound wave input cavity 122 and the inlet 101, the rotation of the rotating shaft 21 causes the baffle 22 to isolate at least one of the sound wave input cavities 122 from the inlet 101, or to communicate each of the sound wave input cavities 122 with the inlet 101. With such an arrangement, the structure of the control part 20 is relatively simple, and by rotating the rotating shaft 21, the communication or non-communication between each of the sound wave output cavities 123 and the outlet 102 can be achieved, or the communication or non-communication between each of the sound wave input cavities 122 and the inlet 101 can be achieved, which is convenient for operation. The plurality of baffles 22 can be connected to the outer surface of the sleeve, the rotating shaft 21 is arranged in the sleeve, and the rotation of the rotating shaft 21 drives the sleeve to rotate, thereby driving the baffles 22 to rotate.

[0067] In this embodiment, as Figure 1 shown, the sound wave conduction device 100 further includes a motor 30. The output shaft of the motor 30 is connected to the rotating shaft 21, and the rotation of the output shaft of the motor 30 drives the rotation of the rotating shaft 21.

[0068] In this embodiment, as Figure 1 shown, the sound wave conduction device 100 further includes a bearing 23 and a bearing end cover 24. The bearing 23 is installed on the housing, one end of the rotating shaft 21 extends into the bearing 23, and the bearing end cover 24 covers the end of the bearing 23.

[0069] In another embodiment, when the control part 20 is arranged between the sound wave output cavity 123 and the outlet 102, the control part 20 includes a control valve located between each sound wave output cavity 123 and the outlet 102. The control valve is configured to control the communication or blockage between the sound wave output cavity 123 and the outlet 102. When the control part 20 is arranged between the sound wave input cavity 122 and the inlet 101, the control part 20 includes a control valve located between each sound wave input cavity 122 and the inlet 101. The control valve is configured to control the communication or blockage between the sound wave input cavity 122 and the inlet 101. Each control valve can be controlled independently. In some embodiments, the control valve can be a solenoid valve.

[0070] In one embodiment, as Figure 2 and Figure 3 shown, the main body part 10 includes two relatively arranged sound wave conduction parts 11. The control part 20 includes a rotating shaft 21 and four baffles 22 arranged around the rotating shaft 21 at equal intervals, namely baffle 221, baffle 222, baffle 223 and baffle 224. Baffle 221 and baffle 223 are relatively arranged, baffle 222 and baffle 224 are relatively arranged, and each baffle 22 can be arranged perpendicular to the axial direction of the rotating shaft 21. One of the baffles 221 is provided with a through hole 2211. The rotating shaft 21 can drive the baffle 22 to rotate. When the control part 20 is arranged between the sound wave output cavity 123 and the outlet 102, the rotating shaft 21 drives the baffle 22 to rotate, so that one of the sound wave output cavities 123 communicates with the outlet 102 through the through hole 2211, or two of the sound wave output cavities 123 communicate with the outlet 102 respectively through the gaps between the baffle 22 and the wall of the main body part 10. When the control part 20 is arranged between the sound wave input cavity 122 and the inlet 101, the rotating shaft 21 drives the baffle 22 to rotate, so that one of the sound wave input cavities 122 communicates with the inlet 101 through the through hole 2211, or two of the sound wave input cavities 122 communicate with the inlet 101 respectively through the gaps between the baffle 22 and the wall of the main body part 10.

[0071] Figure 1 and Figure 2 In the embodiment shown, the control unit 20 is arranged between the sound wave output cavity 123 and the outlet 102. The rotating shaft 21 drives the baffle 22 to rotate. When the through hole 2211 rotates to communicate with one of the sound wave output cavities 123, the baffle 223 blocks the sound wave output cavity 123 of the other sound wave conduction part 11, isolating it from the outlet 102. When the rotating shaft 21 drives the baffle 22 to rotate until the angle between each baffle and the sound wave diaphragm 13 is acute, there is a gap between each baffle 22 and the wall of each sound wave output cavity 123, and then each sound wave output cavity 123 can communicate with the outlet 102. The rotating shaft 21 drives the baffle 22 to rotate, so that the baffle 222 and the baffle 224 block the two sound wave output cavities 123 respectively. At this time, the sound wave conduction device 100 cannot conduct gas fluctuations to the cab. Figure 3 In the embodiment shown, the control unit 20 is arranged between the sound wave input cavity 122 and the inlet 101. The working principle of the control unit 20 is similar to that in Figure 2 and will not be elaborated here.

[0072] The above are only the preferred embodiments of the present application, and do not impose any form of limitation on the present application. Although the present application has been disclosed above with the preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present application. However, as long as it does not depart from the content of the technical solution of the present application, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still fall within the scope of the technical solution of the present application.

[0073] The content disclosed in this patent document contains copyrighted material. This copyright is owned by the copyright owner. The copyright owner does not object to anyone copying this patent document or this patent disclosure as it exists in the official records and files of the patent office.

Claims

1. An acoustic wave conduction device, characterized in that, The sound wave conduction device (100) includes a main body part (10) and a control part (20); The main body part (10) includes a housing, the housing includes a main housing part (103) and at least two end caps (104), and the end caps (104) are covered on the main housing part (103); the main body part (10) further includes at least two sound wave conduction parts (11), the sound wave conduction part (11) includes a sound wave sound cavity (12) and a sound wave diaphragm (13) located in the sound wave sound cavity (12); the sound wave diaphragm (13) is arranged between the main housing part (103) and the end cap (104); the sound wave sound cavity (12) includes a sound wave oscillation cavity (121), a sound wave input cavity (122) and a sound wave output cavity (123); the sound wave input cavity (122) is blocked between the sound wave output cavity (123), and is located on the same side of the sound wave diaphragm (13); the sound wave oscillation cavity (121) is located on the other side of the sound wave diaphragm (13); when the gas fluctuation intensities in the respective sound wave input cavities (122) of the at least two sound wave conduction parts (11) are the same, the vibration frequencies generated by different sound wave diaphragms (13) are different; The main body part (10) is further provided with an inlet (101) and an outlet (102); the sound wave input cavity (122) is communicated with the inlet (101), and the adjacent sound wave output cavities (123) are blocked, the control part (20) is arranged between the sound wave output cavity (123) and the outlet (102), and the control part (20) is configured to control the communication or non-communication between each sound wave output cavity (123) and the outlet (102); or, the sound wave output cavity (123) is communicated with the outlet (102), the adjacent sound wave input cavities (122) are blocked, the control part (20) is arranged between the sound wave input cavity (122) and the inlet (101), and the control part (20) is configured to control the communication or non-communication between each sound wave input cavity (122) and the inlet (101).

2. The sound wave conduction device according to claim 1, characterized in that, In different sound wave sound cavities (12), the shape of at least one cavity among the sound wave oscillation cavity (121), the sound wave input cavity (122) and the sound wave output cavity (123) is different; or, in different sound wave sound cavities (12), the volume of at least one cavity among the sound wave oscillation cavity (121), the sound wave input cavity (122) and the sound wave output cavity (123) is different.

3. The sound wave conduction device according to claim 1, wherein, The thicknesses of the sound wave diaphragms (13) of different sound wave conduction parts (11) are different, and / or the materials of the sound wave diaphragms (13) of different sound wave conduction parts (11) are different.

4. The sound wave conduction device according to claim 1, wherein, The middle area of the sound wave diaphragm (13) is fixedly arranged, and the gas fluctuation in each sound wave input cavity (122) causes the unfixed area of the sound wave diaphragm (13) to vibrate; or, The edge region of the sound wave diaphragm (13) is fixedly arranged, and the gas fluctuations in each sound wave input cavity (122) cause the unfixed region of the sound wave diaphragm (13) to vibrate.

5. The sound wave conduction device according to claim 1, characterized in that, The orthographic projection of the sound wave oscillation cavity (121) on the sound wave diaphragm (13) at least partially coincides with the orthographic projection of the sound wave input cavity (122) on the sound wave diaphragm (13), and the orthographic projection of the sound wave oscillation cavity (121) on the sound wave diaphragm (13) at least partially coincides with the orthographic projection of the sound wave output cavity (123) on the sound wave diaphragm (13).

6. The sound wave conduction device according to claim 5, wherein The sound wave oscillation cavity (121) includes an oscillation input cavity (1211) and an oscillation output cavity (1212). The sound wave conduction part (11) further includes a partition plate (14). The partition plate (14) is arranged between the oscillation input cavity (1211) and the oscillation output cavity (1212), and the partition plate (14) isolates the oscillation input cavity (1211) and the oscillation output cavity (1212); the orthographic projection of the oscillation input cavity (1211) on the sound wave diaphragm (13) at least partially coincides with the orthographic projection of the sound wave input cavity (122) on the sound wave diaphragm (13), and the orthographic projection of the oscillation output cavity (1212) on the sound wave diaphragm (13) at least partially coincides with the orthographic projection of the sound wave output cavity (123) on the sound wave diaphragm (13).

7. The sound wave conduction device according to claim 1, wherein, When the control part (20) is arranged between the sound wave output cavity (123) and the outlet, each sound wave input cavity (122) is communicated; or when the control part (20) is arranged between the sound wave input cavity (122) and the inlet (101), each sound wave output cavity (123) is communicated.

8. The sound wave conduction device according to claim 1, wherein, The control part (20) includes a rotating shaft (21) and a plurality of baffle plates (22) arranged around the rotating shaft (21). The rotating shaft (21) can drive the baffle plates (22) to rotate; when the control part (20) is arranged between the sound wave output cavity (123) and the outlet (102), the rotation of the rotating shaft causes the baffle plates (22) to isolate at least one sound wave output cavity (123) from the outlet (102), or to communicate each sound wave output cavity (123) with the outlet (102); when the control part (20) is arranged between the sound wave input cavity (122) and the inlet (101), the rotation of the rotating shaft causes the baffle plates (22) to isolate at least one sound wave input cavity (122) from the inlet (101), or to communicate each sound wave input cavity (122) with the inlet (101); or, When the control unit (20) is disposed between the sound wave output cavity (123) and the outlet (102), the control unit (20) includes a control valve located between each of the sound wave output cavities (123) and the outlet (102), and the control valve is configured to control the communication or blockage between the sound wave output cavity (123) and the outlet (102); when the control unit (20) is disposed between the sound wave input cavity (122) and the inlet (101), the control unit (20) includes a control valve located between each of the sound wave output cavities (123) and the outlet (102), and the control valve is configured to control the communication or blockage between the sound wave input cavity (122) and the inlet (101).

9. The sound wave conduction device according to claim 1, wherein, The main body portion (10) includes two oppositely disposed sound wave conduction portions (11), the control unit (20) includes a rotating shaft (21) and four baffles (22) arranged at equal intervals around the rotating shaft (21), and one of the baffles (22) is provided with a through hole (2211), and the rotating shaft can drive the baffle to rotate; When the control unit (20) is disposed between the sound wave output cavity (123) and the outlet (102), the rotating shaft (21) drives the baffle (22) to rotate, so that one of the sound wave output cavities (123) communicates with the outlet through the through hole, or two of the sound wave output cavities (123) respectively communicate with the outlet through the gap between the baffle and the wall of the main body portion; when the control unit (20) is disposed between the sound wave input cavity (122) and the inlet (101), the rotating shaft (21) drives the baffle (22) to rotate, so that one of the sound wave input cavities (122) communicates with the inlet through the through hole, or two of the sound wave input cavities (122) respectively communicate with the inlet through the gap between the baffle and the wall of the main body portion.

10. A vehicle, characterized in that, The vehicle includes a cab, an engine, a sound wave output pipe, and the sound wave conduction device (100) according to any one of claims 1 to 9; the engine includes an intake pipe, the intake pipe communicates with the inlet (101) of the main body portion (10), one end of the sound wave output pipe communicates with the outlet (102) of the main body portion (10), and the other end of the sound wave output pipe communicates with the cab.

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