Vehicle

Abstract

The utility model is suitable for the technical field of vehicles, and provides a vehicle which comprises a vibration structure. The supporting structure is connected to the vibration structure and is used for supporting the vibration structure; the noise reduction device comprises a shell and damping particles, a containing cavity is formed in the shell, and the damping particles are movably contained in the containing cavity; the shell is connected to the vibration structure and / or the supporting structure; according to the vehicle provided by the embodiment of the invention, the noise reduction device is arranged, and the noise reduction device is arranged on the vibration structure of the vehicle so as to absorb part of vibration noise and reduce the noise transmitted to the passenger compartment; the supporting structure is connected with the vibration structure, and the vibration energy of the vibration structure can be transmitted through the supporting structure, so that the noise reduction device is further arranged on the supporting structure to absorb part of vibration noise on an energy transmission path and reduce the noise transmitted to the passenger compartment.

Description

Technical Field

[0001] The present application belongs to the field of vehicle technology, and in particular relates to a vehicle. Background Art

[0002] In electric vehicles, because there is no masking effect of engine vibration noise, road noise generated by the wheels and the road surface, self-vibration noise of other structures in the vehicle, and other noises are more easily transmitted to the vehicle's passenger compartment and more easily perceived by the driver and passengers, thereby easily reducing the driving experience of the driver and passengers. Utility Model Content

[0003] In view of the above problems, the present application provides a vehicle that can alleviate the problem that noise in the vehicle may cause discomfort to the driver and passengers.

[0004] An embodiment of the present application provides a vehicle, comprising: a vibration structure; a support structure connected to the vibration structure and used to provide support for the vibration structure; a noise reduction device, the noise reduction device comprising a shell and damping particles, a receiving cavity being provided in the shell, and the damping particles being movably received in the receiving cavity; the shell being connected to the vibration structure and / or the support structure.

[0005] In the technical solution of this embodiment, a noise reduction device is provided, and the noise reduction device is provided on the vibration structure of the vehicle to absorb part of the vibration noise and reduce the noise transmitted to the passenger compartment; because the supporting structure is connected to the vibration structure, the vibration energy of the vibration structure can be transmitted through the supporting structure, so the noise reduction device is also provided on the supporting structure to absorb part of the vibration noise on the energy transmission path and reduce the noise transmitted to the passenger compartment; the noise reduction device includes an outer shell and damping particles accommodated in the outer shell, and the damping particles are movably provided in the accommodating cavity, and the damping particles can move with the vibration of the vibration structure to consume the vibration energy through the collision and friction of the damping particles, thereby reducing the noise generated by the vibration structure, reducing the noise from the vibration source, and thus better reducing the noise transmitted to the passenger compartment.

[0006] In some embodiments, the vibration structure includes a first vibration device that can generate vibration when in operation; the first vibration device is provided with a shell, and / or the first vibration device is rigidly connected to a supporting structure that is provided with a shell.

[0007] In the technical solution of this embodiment, since the first vibration device can generate vibration energy during the operation, the noise reduction device is arranged on the first vibration device and / or the supporting structure rigidly connected thereto to absorb and consume part of the vibration energy generated during the operation of the first vibration device, and absorb and consume part of the vibration energy transmitted to the supporting structure, thereby reducing the noise transmitted to the passenger compartment.

[0008] In some embodiments, the first vibration component includes a compressor, and a housing is provided on the compressor.

[0009] In the technical solution of this embodiment, the compressor is prone to vibrate and generate noise during operation. The noise reduction device is set on the compressor to absorb and consume part of the vibration energy generated by the compressor, thereby reducing the noise transmitted to the passenger compartment.

[0010] In some embodiments, the compressor includes a low-pressure pipe and a high-pressure pipe, and a shell is provided on the low-pressure pipe and / or the high-pressure pipe; and / or the support structure also includes a first bracket, the compressor is provided on the first bracket, and a shell is provided on the first bracket.

[0011] In the technical solution of this embodiment, since the low-pressure pipe and high-pressure pipe of the compressor are prone to vibration and shaking during the operation of the compressor, a noise reduction device is provided on the low-pressure pipe and / or high-pressure pipe to absorb and consume part of the vibration energy, thereby reducing the noise transmitted to the passenger compartment, and can also alleviate the problem of reduced strength of the connection parts caused by the vibration of the low-pressure pipe and the high-pressure pipe; since the first bracket is mainly used to support the compressor, the vibration of the compressor can be directly transmitted to the first bracket, and then transmitted to the frame and body through the first bracket, so the noise reduction device is provided on the first bracket to absorb and consume part of the vibration energy transmitted to the first bracket, thereby reducing the noise transmitted to the passenger compartment.

[0012] In some embodiments, the first vibration component includes a heat exchange module, the heat exchange module includes a first housing, and the first housing is provided with an outer shell.

[0013] In the technical solution of this embodiment, since the heat exchange module is prone to vibrate and generate noise during operation, a noise reduction device is set on the heat exchange module to absorb and consume part of the vibration energy generated by the heat exchange module, thereby reducing the noise transmitted to the passenger compartment.

[0014] In some embodiments, the heat exchange module also includes fan blades rotatably connected to the first housing, and the outer shell is arranged at the connection between the first housing and the fan blades; and / or the support structure also includes a second bracket, the heat exchange module is arranged on the second bracket, and the outer shell is arranged on the second bracket.

[0015] In the technical solution of this embodiment, the heat exchange module also includes fan blades. The part where the fan blades are rotated and connected to the first housing is prone to generate more violent vibrations during the rotation of the fan blades. Setting the noise reduction device at the connection part between the fan blades and the first housing can better absorb and consume the vibration energy therein, thereby reducing the noise transmitted to the passenger compartment; because the second bracket is mainly used to support the heat exchange module, the vibration of the heat exchange module can be directly transmitted to the second bracket, and then transmitted to the frame and body through the second bracket, so the noise reduction device is set on the second bracket to absorb and consume part of the vibration energy transmitted to the second bracket, thereby playing a role in reducing the noise transmitted to the passenger compartment.

[0016] In some embodiments, the heat exchange module includes a heat pump assembly and / or a cooling assembly.

[0017] In the technical solution of this embodiment, the heat exchange module includes a heat pump component and a cooling component, that is, the noise reduction device can be arranged on the heat pump component or the cooling component to absorb and consume part of the vibration energy generated by the operation of the heat pump component and the cooling component, thereby reducing the noise transmitted to the passenger compartment.

[0018] In some embodiments, the first vibration device includes a driving module, and a housing is provided on the driving module.

[0019] In the technical solution of this embodiment, since the driving module is prone to vibrate and generate noise during operation, a noise reduction device is set on the driving module to absorb and consume part of the vibration energy generated by the driving module, thereby reducing the noise transmitted to the passenger compartment.

[0020] In some embodiments, the drive module includes a drive shaft with a housing disposed on the drive shaft.

[0021] In the technical solution of this embodiment, a noise reduction device is arranged on the drive shaft to absorb and consume the vibration energy transmitted by the drive module through the drive shaft, thereby reducing the vibration energy transmitted to other structures through the drive shaft and reducing the noise transmitted to the passenger compartment.

[0022] In some embodiments, the vibration structure includes a second vibration device, the movement of the second vibration device can be coupled with the external environment of the vehicle and generate vibration, and the second vibration device is provided with a housing.

[0023] In the technical solution of this embodiment, the second vibrating device is enabled to couple with the external environment to generate vibration, that is, the second vibrating device is prone to vibrate when the vehicle is traveling or the external environment changes; the outer shell is provided on the second vibrating device to reduce the noise generated by the second vibrating device through the noise reduction device, so as to reduce the noise from the vibration source and reduce the noise transmitted to the passenger compartment.

[0024] In some embodiments, the support structure includes a suspension system with the housing disposed thereon.

[0025] In the technical solution of this embodiment, since the suspension system is mainly used to connect the wheels to the frame, the vibration of the wheels can be directly transmitted to the suspension system and then transmitted to the frame and body through the suspension system. Therefore, the noise reduction device is set on the suspension system to absorb and consume part of the vibration energy transmitted to the suspension system, thereby reducing the noise transmitted to the passenger compartment.

[0026] In some embodiments, the vehicle further comprises a frame, on which the housing is disposed.

[0027] In the technical solution of this embodiment, a noise reduction device is provided on the vehicle frame. Since the vehicle frame is connected to the vehicle body and is relatively close to the passenger compartment, the noise reduction device provided on the frame can absorb and consume part of the vibration energy at the end of the vibration energy transmission, thereby further reducing the noise transmitted to the passenger compartment.

[0028] In some embodiments, the suspension system includes a first rod connected to a wheel of the vehicle, the first rod also connected to the frame; a housing is provided on the first rod; and / or a housing is provided at the connection between the frame and the first rod.

[0029] In the technical solution of this embodiment, the noise reduction device is arranged on the first rod connected to the wheel to absorb and consume part of the vibration energy transmitted to the first rod by the wheel, so as to weaken the vibration energy from the vibration transmission path and reduce the noise transmitted to the passenger compartment; the noise reduction device is arranged on the connection part between the first rod and the frame. Because the vibration energy of the first rod can be transmitted to the frame through the connection part, and the vibration energy at the connection part not only has a negative impact on the driving experience of the occupants in the passenger compartment, but also easily leads to a reduction in the strength and life of the connection part, the noise reduction device is arranged on the connection part to absorb and consume part of the vibration energy, thereby reducing the noise transmitted to the passenger compartment, and at the same time protecting the connection part between the first rod and the frame.

[0030] In some embodiments, the suspension system further includes a shock absorber, and a housing is provided on the shock absorber.

[0031] In the technical solution of this embodiment, the noise reduction device is arranged on the shock absorber to absorb and consume part of the vibration energy transmitted to the shock absorber by the wheel, and absorb and consume part of the vibration energy generated by the shock absorber itself.

[0032] In some embodiments, the vehicle further includes a fixed structure indirectly connected to the vibration structure, and a housing is provided on the fixed structure.

[0033] In the technical solution of this embodiment, the outer shell is arranged on the fixed structure to absorb and consume the vibration energy transmitted from the vibrating structure to the fixed structure, thereby reducing the noise transmitted to the passenger compartment and reducing the negative impact of the vibration energy on the service life of the fixed structure.

[0034] In some embodiments, the fixed structure includes at least one of a vehicle body, a trim, a seat, a steering wheel, and a floor.

[0035] The technical solution of this embodiment provides some specific structures of fixed structures, and noise reduction devices are set on these structures to reduce the noise transmitted into the passenger compartment, reduce the negative impact of vibration energy on drivers and passengers, and reduce the negative impact of vibration energy on the service life of these structures.

[0036] In some embodiments, the fixed structure includes a vehicle body roof cross member, and the outer shell is arranged in the middle of the vehicle body roof cross member along the width direction of the vehicle; and / or the fixed structure includes a vehicle body panel, and the outer shell is arranged on the vehicle body panel.

[0037] In the technical solution of this embodiment, since the vehicle body roof cross beam and the vehicle body panel are close to the passenger compartment, the noise generated by the vibration energy transmitted to the vehicle body roof cross beam and the vehicle body panel can be more easily perceived by the driver and passengers, and is more likely to have a negative impact on the driver and passengers; therefore, noise reduction devices are provided on the vehicle body roof cross beam and the vehicle body panel to reduce the noise transmitted to the passenger compartment.

[0038] In some embodiments, the mass filling rate of the damping particles in the accommodating cavity is greater than or equal to 20% and less than 100%; or the volume filling rate of the damping particles in the accommodating cavity is greater than or equal to 20% and less than 100%.

[0039] The technical solution of this embodiment provides a filling rate of some damping particles in the accommodating cavity. Within this range, the collision friction of a single damping particle can absorb more energy, and the number of damping particles is also large, so that the damping particles can better absorb and consume vibration energy.

[0040] In some embodiments, the mass filling rate of the damping particles in the accommodating cavity ranges from 80% to 90%; or the volume filling rate of the damping particles in the accommodating cavity ranges from 80% to 90%.

[0041] The technical solution of this embodiment further provides a filling rate of some damping particles in the accommodating cavity, so that the damping particles can better absorb and consume vibration energy.

[0042] In some embodiments, a ratio of the mass of the noise reduction device to the mass of the connected structural member is less than or equal to 50%.

[0043] In the technical solution of this embodiment, the mass of the noise reduction device is made less than 50% of the mass of the structural component on which it is installed, so that the noise reduction device can not only absorb and consume vibration energy, but also reduce the negative impact of the noise reduction device on the connected structure and reduce the negative impact of the noise reduction device on the overall weight of the vehicle.

[0044] In some embodiments, the ratio of the mass of the noise reduction device to the mass of the connected structural member is in a range of 2% to 10%.

[0045] The technical solution of this embodiment further provides some weight ratio ranges of the noise reduction device and the structural member on which it is installed. On the premise that the noise reduction device can absorb and consume vibration energy, the negative impact of the noise reduction device on the connected structure and the overall weight of the vehicle is further reduced.

[0046] In some embodiments, the damping particles are spherical metal structures.

[0047] In the technical solution of this embodiment, the damping particles are spherical metal structural parts. This setting can make the damping particles move more easily in the outer shell, so that the damping particles can consume vibration energy through collision and friction; the metal material can not only make the damping particles consume more vibration energy during the collision and friction process, but also make the damping particles less likely to be damaged by frequent collision and friction, thereby improving the service life of the noise reduction device.

[0048] In some embodiments, the diameter of the damping particles ranges from 0.001 mm to 100 mm.

[0049] The technical solution of this embodiment provides a diameter range of some damping particles. Within this range, vibration energy can be absorbed and consumed by the collision and friction of a large number of damping particles, or more energy can be absorbed by the collision and friction of a single damping particle, so that the damping particles can better absorb and consume vibration energy.

[0050] In some embodiments, the diameter of the damping particles ranges from 0.1 mm to 10 mm.

[0051] The technical solution of this embodiment further provides a diameter range of some damping particles. Within this range, the collision friction of each damping particle can absorb more energy, and the number of damping particles can be large, so that the vibration energy can be absorbed and consumed by the collision friction between a large number of damping particles.

[0052] In some embodiments, a partition is provided in the housing, and the partition is used to separate the accommodating cavity into a plurality of sub-accommodating cavities, and each sub-accommodating cavity contains damping particles.

[0053] In the technical solution of this embodiment, when the structure connected to the noise reduction device undergoes low-frequency and relatively slight vibration, this setting can make the damping particles more likely to collide with the partition or the inner wall of the outer shell, so that the damping particles can better consume the vibration energy through collision, thereby enabling the noise reduction device to better absorb and consume the vibration energy, and enabling the noise reduction device to adapt to more types of vibration working conditions.

[0054] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0056] Figure 1 A schematic perspective view of a frame and a body of a vehicle provided in some embodiments of the present application;

[0057] Figure 2 A three-dimensional diagram of a compressor provided in some embodiments of the present application Figure 1 ;

[0058] Figure 3 A three-dimensional diagram of a compressor provided in some embodiments of the present application Figure 2 ;

[0059] Figure 4 A schematic perspective view of a cooling assembly provided in some embodiments of the present application;

[0060] Figure 5 A schematic perspective view of a heat pump assembly provided in some embodiments of the present application;

[0061] Figure 6 A three-dimensional schematic diagram of a driving module provided in some embodiments of the present application;

[0062] Figure 7 A partial enlarged schematic diagram of the wheel and suspension system provided in some embodiments of the present application Figure 1 ;

[0063] Figure 8 A partial enlarged schematic diagram of the wheel and suspension system provided in some embodiments of the present application Figure 2 ;

[0064] Figure 9 A partial enlarged schematic diagram of the wheel and suspension system provided in some embodiments of the present application Figure 3 ;

[0065] Figure 10 A partial enlarged schematic diagram of the wheel and suspension system provided in some embodiments of the present application Figure 4 ;

[0066] Figure 11A partial enlarged schematic diagram of the wheel and suspension system provided in some embodiments of the present application Figure 5 ;

[0067] Figure 12 A partially enlarged schematic diagram of a vehicle body roof crossbeam provided in some embodiments of the present application;

[0068] Figure 13 A three-dimensional diagram of the noise reduction device provided in some embodiments of the present application Figure 1 ;

[0069] Figure 14 A three-dimensional diagram of the noise reduction device provided in some embodiments of the present application Figure 2 ;

[0070] Figure 15 A cross-sectional view of a noise reduction device provided in some embodiments of the present application Figure 1 ;

[0071] Figure 16 A cross-sectional view of a noise reduction device provided in some embodiments of the present application Figure 2 .

[0072] The meanings of the marks in the figure are:

[0073] 100. Vehicles;

[0074] 10. Vibration structure; 11. Second vibrating device; 12. First vibrating device; 121. Compressor; 1211. Low-pressure pipe; 1212. High-pressure pipe; 122. Heat exchange module; 1221. First housing; 1222. Fan blade; 123. Drive module; 1231. Drive shaft;

[0075] 20. Noise reduction device; 21. Housing; 211. Accommodation cavity; 2111. Sub-accommodation cavity; 22. Damping particles; 23. Partition;

[0076] 31. Suspension system; 311. First rod; 312. Shock absorber; 32. Vehicle frame; 33. First bracket; 331. First bushing; 34. Second bracket; 341. Second bushing;

[0077] 41. Body roof crossbeam; 42. Body panel. DETAILED DESCRIPTION

[0078] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0079] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0080] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0081] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0082] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0083] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0084] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0085] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0086] Energy conservation and emission reduction are the key to the sustainable development of the automotive industry. Electric vehicles have become an important part of the sustainable development of the automotive industry due to their energy-saving and environmental protection advantages.

[0087] Compared to traditional energy vehicles, new energy vehicles (NEVs) produce less engine vibration and noise. Without the masking effect of engine vibration and noise, noise generated by other components in the vehicle becomes more easily perceived by drivers and passengers, negatively impacting the driving experience.

[0088] For example, during the driving process of a vehicle, the friction noise between the wheels and the road, the noise generated by the wheels passing over bumpy roads, and the noise generated by the wheels rolling over stones and other debris are all transmitted to the passenger compartment through the frame or body structure and are perceived by the driver and passengers; for example, the compressor, heat pump and other devices in the vehicle are usually accompanied by vibration during operation, and the energy generated by the vibration of these devices is also likely to cause noise, which is also easily transmitted to the passenger compartment through the frame or body structure and perceived by the driver and passengers.

[0089] Based on the above considerations, in order to alleviate the problem that noise in a vehicle may cause discomfort to drivers and passengers, an embodiment of the present application provides a vehicle, which is provided with a noise reduction device, and the noise reduction device is arranged on a vibration structure and / or a support structure so as to absorb and consume vibration energy through the noise reduction device; the noise reduction device includes an outer shell and damping particles accommodated in the outer shell, so that the damping particles can consume vibration energy through collision and friction.

[0090] In such a vehicle, a noise reduction device is set on the vibration structure of the vehicle to absorb part of the vibration noise at the source of the vibration and reduce the noise transmitted to the passenger compartment; because the supporting structure is connected to the vibration structure, the vibration energy of the vibration structure can be transmitted through the supporting structure, so the noise reduction device set on the supporting structure can also absorb part of the vibration noise on the energy transmission path and reduce the noise transmitted to the passenger compartment; the damping particles are enabled to move with the vibration of the vibration structure to consume the vibration energy through the collision and friction of the damping particles, thereby reducing the noise generated by the vibration structure, reducing the noise from the vibration source, and thus better reducing the noise transmitted to the passenger compartment.

[0091] The vehicle provided in the embodiment of the present application can be a traditional energy vehicle, a new energy vehicle, a hybrid energy vehicle, etc. The energy sources of the new energy vehicle and the hybrid energy vehicle can include electricity, natural gas, etc.; the vehicle can be a large car, a small car, a special-purpose vehicle, etc. For example, according to the vehicle model, the vehicle can be a sedan model, an off-road model, a multi-purpose vehicle (MPV) model or other models.

[0092] refer to Figure 1 、 Figures 13 to 16 The present invention provides a vehicle 100 including a vibration structure 10, a support structure, and a noise reduction device 20. The support structure is connected to the vibration structure 10 and is used to provide support for the vibration structure 10. The noise reduction device 20 includes a housing 21 and damping particles 22. The housing 21 has a receiving cavity 211 therein, and the damping particles 22 are movably received in the receiving cavity 211. The housing 21 is rigidly connected to the vibration structure 10 and / or the support structure.

[0093] The vibration structure 10 refers to a structure in the vehicle 100 that can vibrate during the movement. The vibration structure 10 can generate vibration as a vibration source during the movement. The vibration structure 10 may include a structure that vibrates itself during its movement, such as a compressor 121, a vehicle air conditioner, a heat pump, etc. The vibration structure 10 may also include a structure that vibrates by coupling with the external environment during its movement, such as a wheel, etc. The vibration structure 10 may include only one structure that can vibrate during the movement, or it may include two or more structures.

[0094] The support structure refers to a structure in the vehicle 100 that is directly connected to the vibration structure 10. The support structure can provide support and a fixed foundation for the vibration structure 10. Since the support structure is directly connected to the vibration structure 10, the vibration energy generated by the vibration of the vibration structure 10 can be directly transmitted to the support structure, that is, the support structure can serve as a transmission path for the vibration energy.

[0095] According to the specific structure of the vibration structure 10, the support structure can be connected to the frame 32 or body of the vehicle 100 to connect the vibration structure 10 to the frame 32 or body, and the support structure can also be a partial structure of the frame 32 or body; according to the specific structure of the vibration structure 10, the support structure can also be movably connected to the vibration structure 10 and move relative to the vibration structure 10, and the support structure can also be fixedly connected to the vibration structure 10 by welding, screwing, etc.; the support structure can be a multi-link structure, a frame structure, a box-type structure or a structure of other shapes; the material of the support structure can include metal, plastic or other materials; according to the number of vibration structures 10, the number of support structures can be one, or two or more.

[0096] The noise reduction device 20 refers to a device in the vehicle 100 for reducing vibration noise. The noise reduction device 20 can be provided only on the vibration structure 10 or the supporting structure to absorb and consume vibration energy at the source and transmission path of the vibration, thereby reducing the noise transmitted to the passenger compartment. The noise reduction device 20 can also be provided on the vibration structure 10 or the supporting structure at the same time to better absorb and consume vibration energy, that is, the number of noise reduction devices 20 can be one, or two or more.

[0097] The housing 21 refers to the structure in the noise reduction device 20 that serves as a carrier for the damping particles 22. The housing 21 may also provide a fixing base for other structures of the noise reduction device 20. The housing 21 is also used to connect to the vibration structure 10 or the supporting structure. The housing 21 may be an independent component and fixedly connected to the corresponding structure by welding, bonding, screwing, etc. The housing 21 may also be part of an adjacent structure. For example, if the vibration structure 10 connected to the housing 21 is a heat pump, the housing 21 may be part of the heat pump casing, or the housing 21 may be an independent component connected to the casing.

[0098] The shape of the shell 21 can be prism-shaped, cylindrical or other shapes, and the shape of the shell 21 can also be set according to the shape of the connected structural parts; the material of the shell 21 can include metal, plastic or other materials.

[0099] The accommodating cavity 211 refers to a spatial structure formed inside the shell 21, and the accommodating cavity 211 is used to accommodate the damping particles 22; the accommodating cavity 211 can be a rectangular space, a spherical space or a space of other shapes, and the spatial shape of the accommodating cavity 211 can also be set according to the shape of the shell 21; one accommodating cavity 211 can be set in a shell 21, or two or more accommodating cavities 211 can be set; the accommodating cavity 211 can be a closed space, or an opening can be set on one side or multiple sides of the shell 21 to make the accommodating cavity 211 an open space. When the accommodating cavity 211 is an open space, the shell 21 can turn its open side toward the connected structural parts to close the accommodating cavity 211 through the connected structural parts.

[0100] The damping particles 22 refer to structural parts accommodated in the accommodating cavity 211. The shape of the damping particles 22 can be spherical, rectangular, cylindrical or other shapes; the number of damping particles 22 can be one, two or more; the material of the damping particles 22 can include metal, plastic or other materials.

[0101] When the structural parts adjacent to the shell 21 vibrate, part of the vibration energy drives the shell 21 to vibrate synchronously. The damping particles 22 in the shell 21 move relative to the shell 21 under the vibration of the shell 21, thereby colliding and rubbing with the interior of the shell 21. At the same time, adjacent damping particles 22 can also collide and rub with each other. The collision and friction of the damping particles 22 can consume part of the vibration energy, thereby having the effect of reducing noise.

[0102] According to the installation position of the noise reduction device 20 , the housing 21 may be provided only on the vibration structure 10 or the support structure, or the housing 21 may be provided on both the vibration structure 10 and the support structure.

[0103] In this embodiment, a noise reduction device 20 is provided, and the noise reduction device 20 is provided on the vibration structure 10 of the vehicle 100 to absorb part of the vibration noise and reduce the noise transmitted to the passenger compartment; because the support structure is connected to the vibration structure 10, the vibration energy of the vibration structure 10 can be transmitted through the support structure, so the noise reduction device 20 is also provided on the support structure to absorb part of the vibration noise on the energy transmission path and reduce the noise transmitted to the passenger compartment; the noise reduction device 20 includes an outer shell 21 and damping particles 22 accommodated in the outer shell 21, and the damping particles 22 are movably provided in the accommodating cavity 211. The damping particles 22 can move with the vibration of the vibration structure 10, so as to consume the vibration energy through the collision and friction of the damping particles 22, thereby reducing the noise generated by the vibration structure 10, reducing the noise from the vibration source, and thus better reducing the noise transmitted to the passenger compartment.

[0104] refer to Figures 2 to 6 In some embodiments, the vibration structure 10 includes a first vibration device 12, which can generate vibration when working; the first vibration device 12 is provided with a shell 21, and / or the first vibration device 12 is rigidly connected to the supporting structure, and the supporting structure is provided with a shell 21.

[0105] The first vibrating device 12 refers to a partial structure of the vibrating structure 10 , and the first vibrating device 12 will vibrate simultaneously during the operation, that is, the first vibrating device 12 is a structure that can vibrate by itself, so that the first vibrating device 12 can become the source of vibration during the operation.

[0106] For example, the first vibrating device 12 may be a compressor 121, a heat pump, an electronically controlled drive module, or other structures that generate vibrations when in motion.

[0107] The shell 21 is disposed on the first vibrating device 12 so that the shell 21 and the damping particles 22 therein can vibrate synchronously during the vibration of the first vibrating device 12 and absorb and consume part of the vibration energy, thereby reducing the noise transmitted to the passenger compartment.

[0108] Since the support structure is used to be directly connected to the vibration structure 10 and provide support and a fixed foundation for the vibration structure 10, the first vibration device 12 is rigidly connected to the support structure so that the support structure can better provide support for the first vibration device 12; at this time, the vibration energy generated by the action of the first vibration device 12 can be better transmitted to the support structure, that is, the support structure serves as a transmission path for the vibration energy.

[0109] The first vibration device 12 can be rigidly connected to the corresponding support structure by welding, screwing or other means, so that the vibration energy of the first vibration device 12 can be better transmitted to the corresponding support structure, and the support structure can provide better and more stable support for the first vibration device 12.

[0110] When the first vibration device 12 is rigidly connected to the supporting structure, the first vibration device 12 and the connected supporting structure can also be regarded as an integrated structure. In this case, the outer shell 21 is provided on the supporting structure so that the noise reduction device 20 can better absorb and consume the vibration energy transmitted to the supporting structure by the first vibration device 12, thereby reducing the noise transmitted to the passenger compartment.

[0111] It is understandable that the housing 21 may be provided only on the first vibrating device 12 or the supporting structure connected thereto, or may be provided on both the first vibrating device 12 and the supporting structure connected thereto, so as to better absorb and consume vibration energy.

[0112] Since the first vibration device 12 can generate vibration energy during its operation, this embodiment arranges the noise reduction device 20 on the first vibration device 12 and / or the supporting structure rigidly connected thereto to absorb and consume part of the vibration energy generated during the operation of the first vibration device 12, and absorb and consume part of the vibration energy transmitted to the supporting structure, thereby reducing the noise transmitted to the passenger compartment.

[0113] refer to Figure 2 、 Figure 3 In some embodiments, the first vibration device 12 includes a compressor 121 , and the compressor 121 is provided with a housing 21 .

[0114] The compressor 121 is a device that converts low-pressure gas into high-pressure gas. In the refrigeration system of the vehicle 100, the compressor 121 can absorb low-temperature, low-pressure refrigerant gas, compress it, and then discharge high-temperature, high-pressure refrigerant gas, thereby providing power for the refrigeration cycle.

[0115] The outer shell 21 is provided on the compressor 121, that is, the noise reduction device 20 is provided on the compressor 121; according to the structure of the compressor 121, the outer shell 21 can be directly connected to the casing of the compressor 121, or it can be connected to the various pipelines of the compressor 121; according to the position where the outer shell 21 is connected to the compressor 121 and the material of the connected structural parts, the outer shell 21 can be detachably connected to the compressor 121 by screwing, clamping, etc., or it can be fixedly connected to the compressor 121 by welding, bonding, etc.

[0116] Since the compressor 121 is usually accompanied by its own vibration during operation, the vibration of the compressor 121 is likely to generate noise; accordingly, in this embodiment, the outer shell 21 is arranged on the compressor 121 so that the outer shell 21 and the damping particles 22 inside it can vibrate synchronously during the vibration of the compressor 121 and absorb and consume part of the vibration energy, thereby reducing the noise transmitted to the passenger compartment.

[0117] refer to Figure 2 、 Figure 3 In some embodiments, the compressor 121 includes a low-pressure pipe 1211 and a high-pressure pipe 1212 , and a shell 21 is provided on the low-pressure pipe 1211 and / or the high-pressure pipe 1212 .

[0118] The low-pressure pipe 1211 refers to the pipeline for the medium to enter the compressor 121. The low-pressure medium can enter the compressor 121 through the low-pressure pipe 1211. In the refrigeration system, the low-temperature and low-pressure refrigerant gas discharged from the evaporator can enter the compressor 121 through the low-pressure pipe 1211.

[0119] The high-pressure pipe 1212 refers to the pipeline for discharging the medium from the compressor 121. The high-pressure medium can be discharged from the compressor 121 through the high-pressure pipe 1212. In the refrigeration system, the compressor 121 can compress the refrigerant into a high-temperature and high-pressure gas, and discharge the high-temperature and high-pressure gas to the condenser through the high-pressure pipe 1212.

[0120] During the process of the medium flowing through the low-pressure pipe 1211, if the parameters of the medium (flow rate, pressure, etc.) change, or impurities exist in the low-pressure pipe 1211, the low-pressure pipe 1211 may vibrate during the flow of the medium. This vibration can cause noise and be transmitted to the passenger compartment. At the same time, this vibration can also cause damage to the pipe body or interface of the low-pressure pipe 1211.

[0121] Similar to the low-pressure pipe 1211 , the high-pressure pipe 1212 may also vibrate during the flow of the medium, which may easily generate noise and have a negative impact on the service life.

[0122] Accordingly, the outer shell 21 is arranged on the low-pressure pipe 1211 and / or the high-pressure pipe 1212, that is, the noise reduction device 20 is arranged on the low-pressure pipe 1211 and / or the high-pressure pipe 1212 to absorb and consume the vibration energy of the corresponding low-pressure pipe 1211 and / or the high-pressure pipe 1212, thereby reducing the noise and reducing the possible damage to the low-pressure pipe 1211 and / or the high-pressure pipe 1212.

[0123] The outer shell 21 can be arranged only on the low-pressure pipe 1211 or the high-pressure pipe 1212, or can be arranged on both the low-pressure pipe 1211 and the high-pressure pipe 1212; according to the material and shape of the low-pressure pipe 1211 and the high-pressure pipe 1212, the outer shell 21 can be detachably connected to the low-pressure pipe 1211 and / or the high-pressure pipe 1212 by screwing, clamping, etc., or can be fixedly connected to the low-pressure pipe 1211 and / or the high-pressure pipe 1212 by welding, bonding, etc.; according to the shape of the low-pressure pipe 1211 and the high-pressure pipe 1212, the outer shell 21 can be an annular structure and surround the corresponding low-pressure pipe 1211 or high-pressure pipe 1212, or it can be a square box structure or other structure and be arranged on one side of the corresponding low-pressure pipe 1211 or high-pressure pipe 1212.

[0124] In this embodiment, since the low-pressure pipe 1211 and the high-pressure pipe 1212 of the compressor 121 are prone to vibration and shaking during the operation of the compressor 121, a noise reduction device 20 is provided on the low-pressure pipe 1211 and / or the high-pressure pipe 1212 to absorb and consume part of the vibration energy, thereby reducing the noise transmitted to the passenger compartment, and also alleviating the problem of reduced strength of the connection parts that may be caused by the vibration of the low-pressure pipe 1211 and the high-pressure pipe 1212.

[0125] refer to Figure 2 、 Figure 3 In some embodiments, the support structure further includes a first bracket 33 , the compressor 121 is disposed on the first bracket 33 , and the housing 21 is disposed on the first bracket 33 .

[0126] The first bracket 33 refers to the structure in the supporting structure for supporting the compressor 121. The first bracket 33 can provide support for the compressor 121, and the first bracket 33 can also provide support and a carrier for the related structures of the compressor 121; the first bracket 33 can be a frame structure, or a box structure or other structure; the first bracket 33 can be a part of the frame 32 or the body, or it can be an independent structure. When the first bracket 33 is an independent structure, the first bracket 33 can be connected to the frame 32 or the body, or it can be connected to other structures of the vehicle 100; the material of the first bracket 33 can include plastic, metal or other materials.

[0127] The shell 21 is arranged on the first bracket 33. According to the materials of the shell 21 and the first bracket 33, the shell 21 can be detachably connected to the first bracket 33 by screwing, snapping, etc., or it can be fixedly connected to the first bracket 33 by welding, bonding, etc.; according to the shape of the connecting part of the shell 21 connected to the first bracket 33, the shell 21 can be an annular structure and surround the corresponding connecting part of the first bracket 33, or it can be a square box structure or other structure and be arranged on one side of the corresponding connecting part of the first bracket 33.

[0128] For example, the first bracket 33 further includes a first bushing 331 , which is used to be arranged between the compressor 121 and the frame 32 or the vehicle body. In this case, the housing 21 can also be arranged on the first bushing 331 .

[0129] Since the first bracket 33 is mainly used to support the compressor 121, the vibration of the compressor 121 can be directly transmitted to the first bracket 33, and then transmitted to the frame 32 and the vehicle body through the first bracket 33, and then finally transmitted to the passenger compartment to be perceived by the driver and passengers; accordingly, this embodiment arranges the noise reduction device 20 on the first bracket 33 to absorb and consume part of the vibration energy transmitted to the first bracket 33, thereby reducing the noise transmitted to the passenger compartment.

[0130] refer to Figure 4 、 Figure 5 In some embodiments, the first vibrating device 12 includes a heat exchange module 122 . The heat exchange module 122 includes a first housing 1221 . The first housing 1221 is provided with a shell 21 .

[0131] The heat exchange module 122 refers to a structure in the vehicle 100 for heating or cooling the air inside the vehicle to control the temperature inside the vehicle. The heat exchange module 122 may include a refrigeration device, a heat pump, etc.

[0132] The first housing 1221 refers to a structure in the heat exchange module 122 that is used to provide a fixed foundation for other structures. The first housing 1221 can be arranged on the frame 32, the vehicle body or other structures; the shape of the first housing 1221 can be a rectangular parallelepiped, a cylindrical shape or other shapes; the material of the first housing 1221 can include metal, plastic or other materials.

[0133] The outer shell 21 is provided on the first shell 1221, and the noise reduction device 20 is provided on the first shell 1221. According to the materials of the outer shell 21 and the first shell 1221, the outer shell 21 can be detachably connected to the first shell 1221 by screwing, snapping, etc., or can be fixedly connected to the first shell 1221 by welding, bonding, etc.; according to the shape of the connecting part where the outer shell 21 is connected to the first shell 1221, the outer shell 21 can be a square box-shaped structure and be provided on one side of the corresponding connecting part of the first shell 1221, or it can be set to an arc-shaped or other shaped structure according to the shape of the first shell 1221.

[0134] Since the heat exchange module 122 is prone to vibrate and generate noise during operation, the present embodiment sets the noise reduction device 20 on the heat exchange module 122 to absorb and consume part of the vibration energy generated by the heat exchange module 122, thereby reducing the noise transmitted to the passenger compartment.

[0135] refer to Figure 4 In some embodiments, the heat exchange module 122 further includes a fan blade 1222 rotatably connected to the first housing 1221 , and the housing 21 is disposed at the connection portion between the first housing 1221 and the fan blade 1222 .

[0136] The fan blades 1222 refer to a structure in the heat exchange module 122 for promoting air circulation and providing air supply. The fan blades 1222 are rotatably connected to the first housing 1221 so that the fan blades 1222 can rotate relative to the first housing 1221 .

[0137] The outer shell 21 is arranged at the connection part between the fan blade 1222 and the first housing 1221, that is, the noise reduction device 20 is arranged at the connection part between the fan blade 1222 and the first housing 1221; the outer shell 21 can be a square box-shaped structure, or it can be arranged according to the shape of the connection part between the fan blade 1222 and the first housing 1221.

[0138] For example, the heat exchange module 122 may be a heat dissipation device, and in this case, the fan blades 1222 are cooling fan blades 1222 , which are mainly used to enhance the heat dissipation capacity of the heat dissipation device and accelerate the cooling speed of the coolant.

[0139] The connection between the first housing 1221 and the fan blades 1222 is located on the rotation axis of the fan blades 1222. Since the fan blades 1222 are prone to vibrate at the connection between them and the first housing 1221 during rotation, the vibration can not only generate noise, but also easily have a negative impact on the connection stability between the fan blades 1222 and the first housing 1221, which can easily cause damage to the connection structure and reduce its service life. Accordingly, in this embodiment, the noise reduction device 20 is set at the connection between the fan blades 1222 and the first housing 1221, which can better absorb and consume the vibration energy there, thereby reducing the noise transmitted to the passenger compartment, and reducing the negative impact of vibration on the connection stability between the fan blades 1222 and the first housing 1221, thereby improving the strength and service life of the connection structure.

[0140] refer to Figure 5 In some embodiments, the support structure further includes a second bracket 34 , the heat exchange module 122 is disposed on the second bracket 34 , and the shell 21 is disposed on the second bracket 34 .

[0141] The second bracket 34 refers to a structure in the supporting structure for supporting the heat exchange module 122. The second bracket 34 can provide support for the heat exchange module 122. The second bracket 34 can also provide support and a carrier for the related structures of the heat exchange module 122. The second bracket 34 can be a frame structure, a box structure or other structures. The second bracket 34 can be a part of the frame 32 or the body, or an independent structure. When the second bracket 34 is an independent structure, the second bracket 34 can be connected to the frame 32 or the body, or to other structures of the vehicle 100. The material of the second bracket 34 can include plastic, metal or other materials.

[0142] The shell 21 is arranged on the second bracket 34. According to the material of the shell 21 and the second bracket 34, the shell 21 can be detachably connected to the second bracket 34 by screwing, snapping, etc., or it can be fixedly connected to the second bracket 34 by welding, bonding, etc.; according to the shape of the connecting part of the shell 21 connected to the second bracket 34, the shell 21 can be an annular structure and surround the corresponding connecting part of the second bracket 34, or it can be a square box structure or other structure and be arranged on one side of the corresponding connecting part of the second bracket 34.

[0143] For example, the second bracket 34 further includes a second bushing 341 , which is used to be disposed between the heat exchange module 122 and the vehicle frame 32 or the vehicle body. In this case, the housing 21 can also be disposed on the second bushing 341 .

[0144] For example, the heat exchange module 122 may be a heat pump.

[0145] Since the second bracket 34 is mainly used to support the heat exchange module 122, the vibration of the heat exchange module 122 can be directly transmitted to the second bracket 34, and then transmitted to the frame 32 and the vehicle body through the second bracket 34; accordingly, in this embodiment, the noise reduction device 20 is set on the second bracket 34 to absorb and consume part of the vibration energy transmitted to the second bracket 34, thereby reducing the noise transmitted to the passenger compartment.

[0146] refer to Figure 4 、 Figure 5 In some embodiments, the heat exchange module 122 includes a heat pump assembly and / or a cooling assembly.

[0147] The heat pump assembly refers to a structure in the vehicle 100 that is primarily used to transfer heat from a low-temperature environment to a higher-temperature environment in order to regulate the temperature inside the vehicle; the cooling assembly refers to a structure in the vehicle 100 that is used to maintain the engine, battery device, motor, motor drive module and other structures operating within the required temperature range, and it can achieve temperature control by exchanging heat with the environment outside the vehicle 100.

[0148] Depending on the different models and types of the vehicle 100, the heat exchange module 122 may include only a heat pump component or a cooling component, or may include both a heat pump component and a cooling component; the noise reduction device 20 may be provided only on the heat pump component or the cooling component, or may be provided on both the heat pump component and the cooling component.

[0149] The heat pump assembly and the cooling assembly both generate vibrations during operation, so in this embodiment, the heat exchange module 122 includes a heat pump assembly and a cooling assembly, that is, the noise reduction device 20 can be set on the heat pump assembly and / or the cooling assembly to absorb and consume part of the vibration energy generated by the operation of the heat pump assembly and the cooling assembly, thereby reducing the noise transmitted to the passenger compartment.

[0150] refer to Figure 6 In some embodiments, the first vibration device 12 includes a driving module 123 , and a housing 21 is provided on the driving module 123 .

[0151] The drive module 123 refers to a structure in the vehicle 100 that is mainly used to transmit and output driving force. The drive module 123 may be an electric drive unit (EDU) in a hybrid vehicle 100 or a new energy vehicle 100 .

[0152] The shell 21 is provided on the driving module 123, that is, the noise reduction device 20 is provided on the driving module 123; the shell 21 can be provided on the casing of the driving module 123, or it can be provided on the input end, output end or other structure of the driving module 123; according to the connection position of the shell 21 and the structure of the driving module 123, the shell 21 can be a ring structure and surround the corresponding structural member, or it can be a square box structure or other structure and be provided on one side of the corresponding structural member; according to the material of the shell 21 and the structural member connected to it, the shell 21 can be detachably connected to the corresponding structural member by screwing, clamping, etc., or it can be fixedly connected to the corresponding structural member by welding, bonding, etc.

[0153] Since the driving module 123 is prone to vibrate and generate noise during operation, the noise reduction device 20 is disposed on the driving module 123 in this embodiment to absorb and consume part of the vibration energy generated by the driving module 123, thereby reducing the noise transmitted to the passenger compartment.

[0154] refer to Figure 6 、 Figure 11 In some embodiments, the driving module 123 includes a driving shaft 1231 , and a housing 21 is provided on the driving shaft 1231 .

[0155] The drive shaft 1231 refers to a structure for the drive module 123 to output its driving force. One end of the drive shaft 1231 can be connected to the drive module 123, and the other end can be connected to the wheel.

[0156] The outer shell 21 is arranged on the drive shaft 1231, that is, the noise reduction device 20 is arranged on the drive shaft 1231; according to the connection position of the outer shell 21 and the structure of the drive shaft 1231, the outer shell 21 can be an annular structure and surround the drive shaft 1231, or it can be a square box structure or other structure and be arranged on one side of the drive shaft 1231; according to the material of the outer shell 21 and the drive shaft 1231, the outer shell 21 can be detachably connected to the drive shaft 1231 by screwing, snapping, etc., or it can be fixedly connected to the drive shaft 1231 by welding, bonding, etc.

[0157] The power generated by the drive module 123 can be transmitted to the drive shaft 1231, and can be transmitted to the wheels or other connected structures through the drive shaft 1231, and the vibration of the drive shaft 1231 is likely to generate noise; and the vibration of the drive module 123 and the drive shaft 1231 is likely to cause the connection stability between the drive shaft 1231 and the drive module 123, the wheels or other structures to decrease; therefore, the noise reduction device 20 of this embodiment is arranged on the drive shaft 1231 to absorb and consume the vibration energy transmitted by the drive module 123 through the drive shaft 1231, thereby reducing the vibration energy transmitted to other structures through the drive shaft 1231, reducing the noise transmitted to the passenger compartment, and at the same time reducing the negative impact of the vibration energy on the strength of the connection parts between the drive shaft 1231 and other structures, thereby improving the service life.

[0158] refer to Figures 7 to 11 In some embodiments, the vibration structure 10 includes a second vibration device 11 . The movement of the second vibration device 11 can be coupled with the external environment of the vehicle 100 and generate vibration. The second vibration device 11 is provided with a housing 21 .

[0159] The second vibrating device 11 refers to a partial structure of the vibrating structure 10. The second vibrating device 11 can couple with the external environment and generate vibration during the operation. That is, the second vibrating device 11 itself may not be easy to vibrate, but it is easily affected by the outside world and generates vibration, thereby becoming the source of vibration.

[0160] For example, the second vibrating device 11 may be a wheel. During the driving of the vehicle 100, the friction between the wheel and the road surface, the wheel passing over a bumpy road surface, and the wheel crushing stones and other debris may all cause vibration and generate noise; for example, the second vibrating device 11 may also be a tail wing. When the airflow changes, the tail wing of the vehicle 100 may also vibrate and generate noise; for example, the second vibrating device 11 may also be a fender provided on a fender near the wheel. At this time, splashing mud and water and changing airflow may cause the fender to vibrate and generate noise; it is understandable that the second vibrating device 11 may also be other structures that are easily affected by the external environment and generate vibration, and is not limited to the above-mentioned ones.

[0161] The shell 21 is disposed on the second vibrating device 11 so that the shell 21 and the damping particles 22 therein can vibrate synchronously during the vibration of the second vibrating device 11 and absorb and consume part of the vibration energy, thereby reducing the noise transmitted to the passenger compartment.

[0162] In this embodiment, the second vibrating device 11 is enabled to couple with the external environment to generate vibration, that is, the second vibrating device 11 is prone to vibrate when the vehicle 100 is traveling or the external environment changes; the housing 21 is provided on the second vibrating device 11 to reduce the noise generated by the second vibrating device 11 through the noise reduction device 20, so as to reduce the noise from the vibration source and reduce the noise transmitted to the passenger compartment.

[0163] refer to Figures 7 to 11 In some embodiments, the second vibration device 11 includes a wheel, and a housing 21 is provided on the wheel.

[0164] A wheel refers to a structure in the vehicle 100 that supports and transfers load to the vehicle body and frame 32. The wheel can also achieve acceleration, deceleration, steering and other movements through the contact between the tire and the road surface. The wheel may include structures such as tires, rims, hubs, and spokes.

[0165] The outer shell 21 is provided on the wheel. Specifically, the outer shell 21 can be provided on the rim, hub, or spoke of the wheel. The outer shell 21 can also be provided on the side of the tire facing away from the ground. Depending on the installation position of the outer shell 21, the outer shell 21 can be fixedly connected to the wheel by welding, bonding, etc., or can be detachably connected to the wheel by screwing, snapping, etc.

[0166] It is understandable that, according to the requirements of wheel safety performance, the installation of the noise reduction device 20 should not have a negative impact on the balance of the wheel.

[0167] It can be understood that when the vehicle 100 is traveling at a high speed, the wheel speed is relatively fast, and the damping particles 22 are closely attached to the inner wall of the outer shell 21 under the action of centrifugation. The damping particles 22 are not easy to move in the accommodating cavity 211 when the wheel vibrates. At this time, the noise reduction effect of the noise reduction device 20 is relatively poor; when the vehicle 100 is traveling at a slow speed, the damping particles 22 can more easily move in the accommodating cavity 211 with the vibration of the wheel. At this time, the noise reduction effect of the noise reduction device 20 is relatively good.

[0168] During the driving of the vehicle 100, the friction between the wheels and the road surface, the wheels passing over bumpy roads, and the wheels crushing stones and other debris may all cause vibration and generate noise; accordingly, in this embodiment, the noise reduction device 20 is arranged on the wheel to absorb part of the noise generated by the wheel through the noise reduction device 20, thereby reducing the noise transmitted to the passenger compartment.

[0169] refer to Figures 7 to 11 In some embodiments, the support structure includes a suspension system 31 connected to the wheel, and the housing 21 is provided on the suspension system 31.

[0170] The suspension system 31 refers to the structural system connecting the wheels and the frame 32 or the vehicle body in the vehicle 100. The suspension system 31 is mainly used to transmit the forces acting between the wheels and the frame 32 or the vehicle body, and to cushion the impact forces transmitted to the frame 32 or the vehicle body from uneven roads.

[0171] The suspension system 31 may include a multi-link structure, a torsion beam structure or other structures; the outer shell 21 is arranged on the suspension system 31, that is, the noise reduction device 20 is arranged on the suspension system 31 to absorb and consume the vibration energy transmitted to the suspension system 31; according to the installation position of the outer shell 21, the outer shell 21 can be fixedly connected to the suspension system 31 by welding, bonding, etc., or can be detachably connected to the suspension system 31 by screwing, clamping, etc.

[0172] Since the suspension system 31 is primarily used to connect the wheels to the vehicle frame 32, the vibration of the wheels can be directly transmitted to the suspension system 31 and then to the vehicle frame 32 and vehicle body via the suspension system 31. Accordingly, in this embodiment, the noise reduction device 20 is disposed on the suspension system 31 to absorb and consume a portion of the vibration energy transmitted to the suspension system 31, thereby reducing the noise transmitted to the passenger compartment.

[0173] refer to Figures 7 to 11 In some embodiments, the vehicle 100 further includes a frame 32 on which the housing 21 is disposed.

[0174] The frame 32 refers to the structure of the vehicle 100 that is primarily used to support and connect the various assemblies of the vehicle and to withstand various loads inside and outside the vehicle 100. Depending on the type of vehicle 100, the frame 32 may be a part of the vehicle body, in which case the vehicle body is a load-bearing body, or the frame 32 may be relatively independent of the vehicle body, in which case the vehicle body is a non-load-bearing body; the frame 32 may be used to support the vibration structure 10, and the support structure may also be connected to the frame 32 or serve as a part of the frame 32.

[0175] The shell 21 is provided on the frame 32, that is, the noise reduction device 20 is provided on the frame 32; according to the installation position of the shell 21, the shell 21 can be fixedly connected to the frame 32 by welding, bonding, etc., or can be detachably connected to the frame 32 by screwing, clamping, etc.; according to the shape of the portion where the shell 21 is connected to the frame 32, the shell 21 can be an annular structure and surround the corresponding connecting portion, or it can be a square box-shaped structure or other structure and be provided on one side of the connecting portion.

[0176] Because the frame 32 supports the vibrating structure 10, and the support structure can be connected to or form part of the frame 32, the frame 32 can serve as a transmission path for vibration energy. Furthermore, because the frame 32 is connected to the vehicle body and is relatively close to the passenger compartment, it can also serve as the transmission endpoint for vibration energy and be perceived by the driver and passengers. Accordingly, in this embodiment, a noise reduction device 20 is installed on the frame 32 to absorb and dissipate vibration energy along the transmission path and at the end of the vibration energy transmission path, further reducing the noise transmitted to the passenger compartment.

[0177] refer to Figures 7 to 11 In some embodiments, the suspension system 31 includes a first rod 311 connected to the wheel, and the first rod 311 is also connected to the frame 32; a shell 21 is provided on the first rod 311; and / or a shell 21 is provided at the connection portion between the frame 32 and the first rod 311.

[0178] The first rod 311 refers to a rod or beam structure in the suspension system 31. The first rod 311 is connected to the wheel, and the first rod 311 is connected to the frame 32, so that the suspension system 31 can connect the wheel to the frame 32. The first rod 311 can be a rectangular structure, or a cylindrical structure or a structure of other shapes. The number of first rods 311 can be one, or two or more. In addition to being connected to the wheel and the frame 32, the first rod 311 can also be connected to other structures. The material of the first rod 311 can include metal, plastic or other materials.

[0179] Because the first rod 311 is connected to the wheel, the vibration energy of the wheel can be directly transmitted to the first rod 311; and because the first rod 311 is also connected to the frame 32, the first rod 311 can also transmit the vibration energy to the frame 32. Therefore, the housing 21 is set on the first rod 311 to absorb and consume the vibration energy along the transmission path of the vibration energy, thereby reducing the noise transmitted to the passenger compartment.

[0180] In order to enable the wheels to adapt to different road conditions, the first rod 311 and the wheel, and the first rod 311 and the vehicle body are usually rotationally connected. At this time, when the vibration energy is transmitted to the connection between the first rod 311 and the frame 32 through the first rod 311, the vibration energy is likely to damage the connection, and easily lead to a reduction in the strength of the connection and a shortened service life. Therefore, the housing 21 is set at the connection between the first rod 311 and the frame 32, and the noise reduction device 20 absorbs and consumes the vibration energy of the connection to reduce the damage caused by the vibration energy to the connection, improve the stability and service life of the connection, and at the same time reduce the noise transmitted to the passenger compartment.

[0181] The shell 21 can be provided only on the first rod 311 or on the connection portion between the first rod 311 and the frame 32, or the shell 21 can be provided on both the first rod 311 and the connection portion between the first rod 311 and the frame 32. The noise reduction devices 20 provided at different positions can not only better reduce the noise transmitted to the passenger compartment, but also play a protective role at different positions, reduce the damage to the corresponding structure caused by vibration energy, and improve the overall stability and service life of the structure.

[0182] Depending on the materials of the shell 21, the first rod 311 and the frame 32, the shell 21 can be fixedly connected to the corresponding first rod 311 or the frame 32 by welding, bonding, etc., or can be detachably connected to the corresponding first rod 311 or the frame 32 by screwing, snapping, etc.; depending on the shape of the connecting parts of the shell 21, the first rod 311 and the frame 32, the shell 21 can be an annular structure and surround the corresponding first rod 311, or it can be a square box structure or other structure and be arranged on one side of the corresponding first rod 311 or the frame 32.

[0183] In this embodiment, the noise reduction device 20 is arranged on the first rod 311 connected to the wheel to absorb and consume part of the vibration energy transmitted to the first rod 311 by the wheel, so as to weaken the vibration energy from the vibration transmission path and reduce the noise transmitted to the passenger compartment; the noise reduction device 20 is arranged at the connection part between the first rod 311 and the frame 32. Because the vibration energy of the first rod 311 can be transmitted to the frame 32 through the connection part, and the vibration energy at the connection part not only has a negative impact on the driving experience of the occupants in the passenger compartment, but also easily leads to a reduction in the strength and life of the connection part, the noise reduction device 20 is arranged at the connection part to absorb and consume part of the vibration energy, thereby reducing the noise transmitted to the passenger compartment and at the same time protecting the connection part between the first rod 311 and the frame 32.

[0184] refer to Figures 7 to 11 In some embodiments, the suspension system 31 further includes a shock absorber 312 , on which a housing 21 is disposed.

[0185] The shock absorber 312 refers to a structure in the suspension system 31 used to reduce the vibration of the frame 32 along with the wheels. The shock absorber 312 can improve the driving stability and safety of the vehicle 100. When the vehicle 100 travels on a bumpy road, the shock absorber 312 expands and contracts to cushion the vibration of the wheels and reduce the vibration amplitude of the frame 32 relative to the wheels.

[0186] Depending on the materials of the shell 21 and the shock absorber 312, the shell 21 can be fixedly connected to the shock absorber 312 by welding, bonding, etc., or can be detachably connected to the shock absorber 312 by screwing, snapping, etc.; depending on the shape of the shock absorber 312, the shell 21 can be a ring structure and surround the shock absorber 312, or it can be a square box structure or other structure and be arranged on one side of the shock absorber 312.

[0187] During the extension and contraction process of the shock absorber 312, the shock absorber 312 usually vibrates to a certain amplitude, generating vibration energy and vibration noise caused by the vibration energy; and the shock absorber 312 can move synchronously with the vibration of the wheel, and part of the vibration energy of the wheel is easily transmitted to the shock absorber 312. This part of the vibration energy from the wheel is also likely to cause the shock absorber 312 to generate noise.

[0188] Accordingly, in this embodiment, the noise reduction device 20 is provided on the shock absorber 312 to absorb and consume a portion of the vibration energy transmitted from the wheel to the shock absorber 312 and a portion of the vibration energy generated by the shock absorber 312 itself.

[0189] refer to Figure 1 、 Figure 12 In some embodiments, the vehicle 100 further includes a fixed structure indirectly connected to the vibration structure 10 , and a housing 21 is provided on the fixed structure.

[0190] The fixed structure refers to a structure in the vehicle 100 that is fixed relative to the frame 32 or the body. The fixed structure does not directly contact the vibration structure 10. The vibration structure 10 can transfer vibration energy to the fixed structure through the supporting structure, that is, the fixed structure is the end of the vibration energy transmission.

[0191] The outer shell 21 is provided on the fixed structure, that is, the noise reduction device 20 is provided on the fixed structure, so that the vibration energy transmitted to the fixed structure is absorbed by the noise reduction device 20, thereby reducing the noise transmitted from the fixed structure to the passenger compartment; according to the material of the fixed structure and the outer shell 21, the outer shell 21 can be detachably connected to the fixed structure by screwing, snapping, etc., or it can be fixedly connected to the fixed structure by welding, bonding, etc.; according to the connection position of the outer shell 21 and the shape of the fixed structure, the outer shell 21 can be an annular structure and surround the fixed structure, or it can be a square box structure or other structure and be provided on one side of the fixed structure.

[0192] When the vibration energy of the vibration structure 10 is transmitted to the fixed structure via the supporting structure or directly, the vibration of the fixed structure can also generate noise. At the same time, the vibration between the fixed structures may also resonate, which can easily further cause discomfort to the driver and passengers. Accordingly, in this embodiment, the shell 21 is arranged on the fixed structure to absorb and consume the vibration energy transmitted from the vibration structure 10 to the fixed structure, thereby reducing the noise transmitted to the passenger compartment and reducing the negative impact of the vibration energy on the service life of the fixed structure.

[0193] In some embodiments, the fixed structure includes at least one of a vehicle body, a trim, a seat, a steering wheel, and a floor.

[0194] The body refers to the part of the vehicle 100 that mainly protects passengers, cargo and various internal components of the vehicle 100. The body includes structures such as doors, windows, and body shells, as well as accessories such as bumpers and lights. The shell 21 can be provided on structures such as doors and windows of the body to absorb and consume vibration energy transmitted to the body, thereby reducing noise transmitted to the passenger compartment.

[0195] Decorative parts refer to structures in the vehicle 100 used to beautify the exterior and interior, and can also be used to enhance the driving experience and safety performance; decorative parts may include the interior of the passenger compartment, such as the dashboard, sub-dashboard, roof, center armrest box and the outsourcing structure of the vehicle body; decorative parts may also include decorative structures on the outside of the vehicle 100, such as wheel hub covers, pillar trims, luggage racks, etc.; the housing 21 may be provided on structures such as the dashboard, center armrest box, and luggage rack to absorb and consume the vibration energy transmitted to the decorative parts, thereby reducing the noise transmitted to the passenger compartment.

[0196] The seat refers to the structure in the vehicle 100 that provides support for the driver and passengers, and may include a seat frame, filling, fabric, adjustment mechanism, etc.; the shell 21 can be provided on the seat frame and adjustment mechanism to absorb and consume the vibration energy transmitted to the seat, thereby reducing the noise transmitted to the passenger compartment and reducing the direct impact of seat vibration on the driver and passengers.

[0197] The steering wheel is a structure in the vehicle 100 for controlling the driving direction. The steering wheel may include structures such as a steering column, a steering shaft, and a steering wheel frame. In addition to generating noise, the transmission of vibration energy to the steering wheel may also have a negative impact on the driving of the driver and passengers. The housing 21 may be provided on the steering column, steering shaft, steering wheel frame and other structures of the steering wheel to absorb and consume the vibration energy transmitted to the steering wheel, thereby reducing the noise transmitted to the passenger compartment and reducing the negative impact of the steering wheel vibration on driving.

[0198] The floor is the foundation of the passenger compartment and is used to carry objects and passengers. In addition to generating noise, the vibration energy transmitted to the floor will also have a direct impact on the passengers. The shell 21 can be set on the floor, which can not only reduce the noise transmitted to the passenger compartment, but also reduce the direct impact of floor vibration on the passengers, thereby improving comfort.

[0199] This embodiment provides some specific structures of fixed structures, and the noise reduction device 20 is set on these structures to reduce the noise transmitted into the passenger compartment, reduce the negative impact of vibration energy on the driver and passengers, and reduce the negative impact of vibration energy on the service life of these structures.

[0200] refer to Figure 1 、 Figure 12 In some embodiments, the fixed structure includes a vehicle body roof cross beam 41 , and the shell 21 is arranged in the middle of the vehicle body roof cross beam 41 along the width direction of the vehicle 100 ; and / or the fixed structure includes a vehicle body panel 42 , and the shell 21 is arranged on the vehicle body panel 42 .

[0201] The body roof cross beam 41 refers to a beam structure located on the top of the body and extending along the width direction of the body. It is mainly used to provide support for the body side, A-pillar and other structures along the width direction of the body. The body roof cross beam 41 may include a front cross beam, a rear cross beam and the like.

[0202] The outer shell 21 is arranged on the vehicle body roof cross beam 41, that is, the noise reduction device 20 is arranged on the vehicle body roof cross beam 41. According to the connection position of the outer shell 21 and the structure of the vehicle body roof cross beam 41, the outer shell 21 can be a square box structure or other structure and be arranged on one side of the vehicle body roof cross beam 41, or a receiving groove can be provided on the vehicle body roof cross beam 41, and the outer shell 21 can be arranged according to the shape of the receiving groove to be accommodated in the receiving groove; according to the material of the outer shell 21 and the vehicle body roof cross beam 41, the outer shell 21 can be detachably connected to the vehicle body roof cross beam 41 by screwing, clamping, etc., or it can be fixedly connected to the vehicle body roof cross beam 41 by welding, bonding, etc.

[0203] The vehicle body roof cross beam 41 is close to the heads of the drivers and passengers, and its vibration and the noise generated by the vibration are more easily perceived by the drivers and passengers. Therefore, the noise reduction device 20 is provided on the vehicle body roof cross beam 41 to absorb and consume the vibration energy and reduce the noise transmitted to the passenger compartment.

[0204] The body panel 42 refers to a panel structure around the body used to protect, support or separate different areas, which may include a front panel, which is mainly used for the passenger compartment and the front engine compartment and plays a role of isolation and protection; for example, the noise reduction device 20 can be arranged on the front panel of the body.

[0205] The outer shell 21 is arranged on the vehicle body panel 42, that is, the noise reduction device 20 is arranged on the vehicle body panel 42; according to the materials of the outer shell 21 and the vehicle body panel 42, the outer shell 21 can be detachably connected to the vehicle body panel 42 by screwing, snapping, etc., or can be fixedly connected to the vehicle body panel 42 by welding, bonding, etc.

[0206] The vehicle body panel 42 is close to the driver and passengers, and its vibration and the noise generated by the vibration are more easily perceived by the driver and passengers. Therefore, the noise reduction device 20 is provided on the vehicle body panel 42 to absorb and consume the vibration energy and reduce the noise transmitted to the passenger compartment.

[0207] The noise reduction device 20 may be provided only on the vehicle body roof cross beam 41 or the vehicle body panel 42 , or may be provided on both the vehicle body roof cross beam 41 and the vehicle body panel 42 .

[0208] In this embodiment, since the vehicle body roof cross beam 41 and the vehicle body panel 42 are relatively close to the passenger compartment, the noise generated by the vibration energy transmitted to the vehicle body roof cross beam 41 and the vehicle body panel 42 can be more easily perceived by the driver and passengers, and is more likely to have a negative impact on the driver and passengers; therefore, a noise reduction device 20 is provided on the vehicle body roof cross beam 41 and the vehicle body panel 42 to reduce the noise transmitted to the passenger compartment.

[0209] refer to Figures 13 to 16 In some embodiments, the mass filling rate of the damping particles 22 in the accommodating cavity 211 is greater than or equal to 20% and less than 100%; or the volume filling rate of the damping particles 22 in the accommodating cavity 211 is greater than or equal to 20% and less than 100%.

[0210] The mass filling rate refers to the ratio of the mass of the material filled in a certain space to the maximum mass of the material that the space can accommodate. The mass filling rate of the damping particles 22 in the accommodating cavity 211 refers to the ratio of the total mass of the damping particles 22 in the accommodating space to the mass required to completely fill the accommodating cavity 211 with the same material as the damping particles 22.

[0211] The mass filling rate reflects the amount of space in which the damping particles 22 can move within the accommodation space. The higher the mass filling rate, the more damping particles 22 are in the accommodation space, or the greater the mass of a single damping particle 22, the more energy is consumed by the collision and friction of the damping particles 22 or a single damping particle 22, but the activity range of the damping particles 22 is shorter, and the less energy the damping particles 22 can carry when they move.

[0212] The mass filling rate is greater than or equal to 20% and less than 100%, that is, the mass filling rate can be 20%, 30%, 40%, 50%, 60%, 65%, 70%, 80%, 90%, 99% or other values; it can be understood that the mass filling rate of the damping particles 22 in the accommodating cavity 211 can be close to 100% but should not be equal to 100%, so that the damping particles 22 can have a certain amount of activity space in the accommodating cavity 211 for collision and friction.

[0213] For example, the mass filling rate of the damping particles 22 in the accommodating cavity 211 can be 20%. At this time, the number of damping particles 22 in the accommodating cavity 211 is small, or the mass of a single damping particle 22 is small, and the damping particles 22 have a larger active stroke to carry more energy through activity, so that the damping particles 22 can consume more energy during collision friction.

[0214] For example, the mass filling rate of the damping particles 22 in the accommodating cavity 211 can be 65%. At this time, the number of damping particles 22 in the accommodating cavity 211 is moderate, or the mass of a single damping particle 22 is moderate, and the damping particles 22 also have a certain range of motion. The damping particles 22 can carry a certain amount of energy not only through their own weight, but also through movement, so that the damping particles 22 can consume more energy during collision and friction.

[0215] For example, the mass filling rate of the damping particles 22 in the accommodating cavity 211 can be 99%. At this time, the number of damping particles 22 in the accommodating cavity 211 is large, or the mass of a single damping particle 22 is large. The damping particles 22 can carry greater energy through their own weight, so that the damping particles 22 can consume more energy during collision friction.

[0216] The mass filling rate of the damping particles 22 can be measured by direct weighing, density calculation, or other methods. For example, the density of the damping particles 22 can be first obtained, and then the mass of the accommodating cavity 211 and the damping particles 22 can be measured separately. The mass filling rate of the damping particles 22 can then be calculated based on the number of damping particles 22.

[0217] The volume filling rate refers to the ratio of the material filled in a certain space to the total capacity of the space. The volume filling rate of the damping particles 22 in the accommodating cavity 211 refers to the ratio of the total volume of the damping particles 22 in the accommodating space to the volume of the accommodating cavity 211. It can be understood that when the damping particles 22 are spherical or other irregular shapes, there will still be gaps in the accommodating cavity 211 after each damping particle 22 is tightly fitted. At this time, the volume of the damping particles 22 should be the volume of the circumscribed rectangular parallelepiped of the damping particles 22. For example, when the damping particles 22 are spherical, the volume of the damping particles 22 should be the volume of the circumscribed cube of the sphere.

[0218] The volume filling rate reflects the amount of space in which the damping particles 22 can move within the accommodation space. The higher the volume filling rate, the more damping particles 22 are in the accommodation space, or the larger the volume of a single damping particle 22, the more energy is consumed by the collision and friction of the damping particles 22 or a single damping particle 22, but the activity range of the damping particles 22 is shorter, and the energy that the damping particles 22 can carry during movement is also less.

[0219] The volume filling rate is greater than or equal to 20% and less than 100%, that is, the volume filling rate can be 20%, 30%, 40%, 50%, 60%, 65%, 70%, 80%, 90%, 99% or other values; it can be understood that the volume filling rate of the damping particles 22 in the accommodating cavity 211 can be close to 100% but should not be equal to 100%, so that the damping particles 22 can have a certain amount of activity space in the accommodating cavity 211 for collision and friction.

[0220] For example, the volume filling rate of the damping particles 22 in the accommodating cavity 211 can be 20%. At this time, the number of damping particles 22 in the accommodating cavity 211 is small, or the volume of a single damping particle 22 is small, and the damping particles 22 have a larger active stroke to carry more energy through activity, so that the damping particles 22 can consume more energy during collision friction.

[0221] For example, the volume filling rate of the damping particles 22 in the accommodating cavity 211 can be 65%. At this time, the number of damping particles 22 in the accommodating cavity 211 is moderate, or the volume of a single damping particle 22 is moderate, and the damping particles 22 also have a certain range of motion. The damping particles 22 can carry a certain amount of energy not only through their own weight, but also through movement, so that the damping particles 22 can consume more energy during collision and friction.

[0222] For example, the volume filling rate of the damping particles 22 in the accommodating cavity 211 can be 99%. At this time, the number of damping particles 22 in the accommodating cavity 211 is large, or the volume of a single damping particle 22 is large. The damping particles 22 can carry greater energy through their own weight, so that the damping particles 22 can consume more energy during collision friction.

[0223] The volume filling rate of the damping particles 22 can be measured by direct weighing, calculation, or other methods. For example, the volume of the accommodating cavity 211 and the volume of the damping particles 22 can be measured separately, and then the volume filling rate of the damping particles 22 can be calculated based on the number of the damping particles 22.

[0224] This embodiment provides a filling rate of some damping particles 22 in the accommodating cavity 211. Within this range, the collision friction of a single damping particle 22 can absorb more energy, and the number of damping particles 22 is also large, so that the damping particles 22 can better absorb and consume vibration energy.

[0225] refer to Figures 13 to 16 In some embodiments, the mass filling rate of the damping particles 22 in the accommodating cavity 211 is in the range of 80% to 90%; or the volume filling rate of the damping particles 22 in the accommodating cavity 211 is in the range of 80% to 90%.

[0226] The mass filling rate of the damping particles 22 in the accommodating cavity 211 ranges from 80% to 90%, that is, the mass filling rate can be 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90% or other values.

[0227] For example, the mass filling rate of the damping particles 22 in the accommodating cavity 211 can be 80%. At this time, the number of damping particles 22 in the accommodating cavity 211 is small, or the mass of a single damping particle 22 is small, and the damping particles 22 have a larger active stroke to carry more energy through activity, so that the damping particles 22 can consume more energy during collision friction.

[0228] For example, the mass filling rate of the damping particles 22 in the accommodating cavity 211 can be 85%. At this time, the number of damping particles 22 in the accommodating cavity 211 is moderate, or the mass of a single damping particle 22 is moderate, and the damping particles 22 also have a certain range of motion. The damping particles 22 can carry a certain amount of energy not only through their own weight, but also through movement, so that the damping particles 22 can consume more energy during collision and friction.

[0229] For example, the mass filling rate of the damping particles 22 in the accommodating cavity 211 can be 90%. At this time, the number of damping particles 22 in the accommodating cavity 211 is large, or the mass of a single damping particle 22 is large. The damping particles 22 can carry greater energy through their own weight, so that the damping particles 22 can consume more energy during collision friction.

[0230] The volume filling rate of the damping particles 22 in the accommodating cavity 211 ranges from 80% to 90%, that is, the volume filling rate can be 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90% or other values.

[0231] For example, the volume filling rate of the damping particles 22 in the accommodating cavity 211 can be 80%. At this time, the number of damping particles 22 in the accommodating cavity 211 is small, or the volume of a single damping particle 22 is small, and the damping particles 22 have a larger active stroke to carry more energy through activity, so that the damping particles 22 can consume more energy during collision friction.

[0232] For example, the volume filling rate of the damping particles 22 in the accommodating cavity 211 can be 85%. At this time, the number of damping particles 22 in the accommodating cavity 211 is moderate, or the volume of a single damping particle 22 is moderate, and the damping particles 22 also have a certain range of motion. The damping particles 22 can carry a certain amount of energy not only through their own weight, but also through movement, so that the damping particles 22 can consume more energy during collision and friction.

[0233] For example, the volume filling rate of the damping particles 22 in the accommodating cavity 211 can be 90%. At this time, the number of damping particles 22 in the accommodating cavity 211 is large, or the volume of a single damping particle 22 is large. The damping particles 22 can carry greater energy through their own weight, so that the damping particles 22 can consume more energy during collision friction.

[0234] This embodiment further provides a filling rate of some damping particles 22 in the accommodating cavity 211 , so that the damping particles 22 can better absorb and consume vibration energy.

[0235] refer to Figures 13 to 16 In some embodiments, the ratio of the mass of the noise reduction device 20 to the mass of the connected structural member is less than or equal to 50%.

[0236] The structural member connected to the noise reduction device 20 is the smallest structural member that supports the noise reduction device 20. When the noise reduction device 20 is connected to the vehicle frame 32, the structural member adjacent to the noise reduction device 20 is the structural member that supports the noise reduction device 20, and may be, for example, a crossbeam, longitudinal beam, rib, etc.; when the noise reduction device 20 is connected to the first rod 311 of the suspension system 31, the structural member adjacent to the noise reduction device 20 is the first rod 311.

[0237] The ratio of the mass of the noise reduction device 20 to the mass of the connected structural parts is less than or equal to 50%, that is, the ratio can be 50%, or 45%, 40%, 35%, 30%, 25%, 20%, 15%, 10%, 5%, 1% or other values.

[0238] It is understandable that the ratio of the mass of the noise reduction device 20 to the mass of the connected structural components should not be zero.

[0239] For example, the ratio of the mass of the noise reduction device 20 to the mass of the connected structural parts can be 25%. In this case, the mass of the noise reduction device 20 is larger, and the number of damping particles 22 it carries is larger, or the mass of a single damping particle 22 is larger, and the noise reduction device 20 can absorb and consume more vibration energy.

[0240] For example, the ratio of the mass of the noise reduction device 20 to the mass of the connected structural member can be 50%. In this case, the greater the mass of the noise reduction device 20, the more damping particles 22 it carries, or the greater the mass of a single damping particle 22, the greater the vibration energy that the noise reduction device 20 can absorb.

[0241] The ratio of the mass of the noise reduction device 20 to the mass of the connected structural parts reflects the mass of the noise reduction device 20. The greater the mass of the noise reduction device 20, the more damping particles 22 it carries, or the greater the mass of a single damping particle 22, the more vibration energy the noise reduction device 20 can absorb and consume. However, the noise reduction device 20 will also increase the load on the connected structural parts, which may easily have a negative impact on the connected structural parts. The noise reduction device 20 will also increase the weight of the entire vehicle and have a negative impact on data such as energy consumption of the vehicle 100.

[0242] Accordingly, in this embodiment, the mass of the noise reduction device 20 is less than 50% of the mass of the structural member on which it is installed, so that the noise reduction device 20 can not only absorb and consume vibration energy, but also reduce the negative impact of the noise reduction device 20 on the connected structure and the negative impact of the noise reduction device 20 on the overall weight of the vehicle 100.

[0243] refer to Figures 13 to 16 In some embodiments, the ratio of the mass of the noise reduction device 20 to the mass of the connected structural member is in a range of 2% to 10%.

[0244] The ratio of the mass of the noise reduction device 20 to the mass of the connected structural parts ranges from 2% to 10%, that is, the ratio can be 10%, or 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2% or other values.

[0245] For example, the ratio of the mass of the noise reduction device 20 to the mass of the connected structural parts can be 2%. In this case, the mass of the noise reduction device 20 is relatively small, and the number of damping particles 22 carried by it is relatively small, or the mass of a single damping particle 22 is relatively small, so the noise reduction device 20 has a small negative impact on the connected structural parts and the weight of the entire vehicle.

[0246] For example, the ratio of the mass of the noise reduction device 20 to the mass of the connected structural parts can be 6%. In this case, the mass of the noise reduction device 20 is larger, and the number of damping particles 22 it carries is larger, or the mass of a single damping particle 22 is larger, so the noise reduction device 20 can absorb and consume more vibration energy; at the same time, its negative impact on the connected structural parts and the weight of the entire vehicle is smaller.

[0247] For example, the ratio of the mass of the noise reduction device 20 to the mass of the connected structural member can be 10%. In this case, the greater the mass of the noise reduction device 20, the more damping particles 22 it carries, or the greater the mass of a single damping particle 22, the greater the vibration energy that the noise reduction device 20 can absorb and consume.

[0248] This embodiment further provides some weight ratio ranges of the noise reduction device 20 and the structural member on which it is installed, which further reduces the negative impact of the noise reduction device 20 on the connected structure and the overall weight of the vehicle 100 while ensuring that the noise reduction device 20 can absorb and consume vibration energy.

[0249] refer to Figures 13 to 16 In some embodiments, the damping particles 22 are spherical metal structures.

[0250] The damping particles 22 are spherical structural members, so that the damping particles 22 can more easily move with the vibration of the connected structural members, thereby enabling the noise reduction device 20 to absorb and consume vibration energy even when the connected structural members vibrate slightly.

[0251] The damping particles 22 are metal components, which provide them with high strength. This allows them to consume more energy during collision and friction, extend their service life, and improve the stability of the noise reduction device 20. For example, the damping particles 22 may be made of lead, iron, aluminum, tungsten carbide, or the like.

[0252] In this embodiment, the damping particles 22 are spherical metal structural parts. This setting can make the damping particles 22 move more easily in the shell 21, so that the damping particles 22 consume vibration energy through collision and friction; the metal material can not only make the damping particles 22 consume more vibration energy during the collision and friction process, but also make the damping particles 22 not easily damaged by frequent collision and friction, thereby improving the service life of the noise reduction device 20.

[0253] refer to Figures 13 to 16 In some embodiments where the damping particles 22 are spherical structural members, the diameter of the damping particles 22 ranges from 0.001 mm to 100 mm.

[0254] The diameter of the damping particles 22 is positively correlated with the mass and volume of the damping particles 22 . Combined with the mass filling rate and volume filling rate of the damping particles 22 in the accommodating cavity 211 , the diameter of the damping particles 22 is also negatively correlated with the number of damping particles 22 in the accommodating cavity 211 .

[0255] The diameter of the damping particles 22 ranges from 0.001 mm to 100 mm, that is, the diameter of the damping particles 22 can be 0.001 mm, or 0.001 mm, 0.01 mm, 0.1 mm, 1 mm, 10 mm, 100 mm or other values.

[0256] For example, the diameter of the damping particles 22 may be 0.001 mm. In this case, the diameter of the damping particles 22 is relatively small, the damping particles 22 may be in a powdery structure, the number of the damping particles 22 is relatively large, the collision friction between the damping particles 22 is relatively large, and the collision friction consumes relatively large amounts of energy.

[0257] For example, the diameter of the damping particles 22 can be 1 mm. At this time, the diameter of the damping particles 22 is moderate, and the number of damping particles 22 is also moderate. The damping particles 22 can consume energy through more collision friction, and can also carry more energy through their own weight, so that each collision friction can consume more energy.

[0258] For example, the diameter of the damping particles 22 may be 100 mm. In this case, the diameter of the damping particles 22 is larger and the number of the damping particles 22 is smaller. The damping particles 22 can carry more energy through their own weight, so that each collision friction can consume more energy.

[0259] The larger the diameter of the damping particles 22, the larger their mass and volume, but the smaller their number; the larger the volume of a single damping particle 22, the more energy its collision friction consumes; the smaller the number of damping particles 22, the less collision friction there is between the damping particles 22, and the less energy their collision friction consumes.

[0260] Accordingly, this embodiment provides some diameter ranges of the damping particles 22, within which the vibration energy can be absorbed and consumed by a larger number of damping particles 22 colliding and rubbing against each other, or more energy can be absorbed by the collision and friction of a single damping particle 22, so that the damping particles 22 can better absorb and consume the vibration energy.

[0261] refer to Figures 13 to 16 In some embodiments where the damping particles 22 are spherical structural members, the diameter of the damping particles 22 ranges from 0.1 mm to 10 mm.

[0262] The diameter range of the damping particles 22 is 0.1mm to 10mm, that is, the diameter of the damping particles 22 can be 0.1mm, or it can be 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm or other values.

[0263] For example, the diameter of the damping particles 22 may be 0.1 mm. In this case, the diameter of the damping particles 22 is relatively small, the damping particles 22 may be in a powdery structure, the number of the damping particles 22 is relatively large, the collision and friction between the damping particles 22 is relatively large, and the collision and friction consumes relatively large amounts of energy.

[0264] For example, the diameter of the damping particles 22 can be 5 mm. At this time, the diameter of the damping particles 22 is moderate, and the number of damping particles 22 is also moderate. The damping particles 22 can consume energy through more collision friction, and can also carry more energy through their own weight, so that each collision friction can consume more energy.

[0265] For example, the diameter of the damping particles 22 can be 10 mm. In this case, the diameter of the damping particles 22 is larger and the number of the damping particles 22 is smaller. The damping particles 22 can carry more energy through their own weight, so that each collision friction can consume more energy.

[0266] This embodiment further provides a diameter range of some damping particles 22. Within this range, the collision friction of each damping particle 22 can absorb more energy, and the number of damping particles 22 can be large, so that the vibration energy is absorbed and consumed by the collision friction of a large number of damping particles 22.

[0267] refer to Figures 13 to 16 In some embodiments, a partition 23 is provided in the housing 21 , and the partition 23 is used to separate the accommodating cavity 211 into a plurality of sub-accommodating cavities 2111 , and each sub-accommodating cavity 2111 contains damping particles 22 .

[0268] The partition 23 refers to a partition structure provided in the outer shell 21. The partition 23 is accommodated in the accommodating cavity 211 and can divide the accommodating cavity 211 into multiple sub-accommodating cavities 2111; the partition 23 can be a flat plate structure or a curved plate structure; the shape of the partition 23 can be a rectangular parallelepiped, a trapezoidal or other shapes, and the shape of the partition 23 can also be set according to the shape of the outer shell 21; the number of partitions 23 can be one, or two or more; the material of the partition 23 can include metal, plastic or other materials, and the material of the partition 23 can be the same as or different from the material of the outer shell 21.

[0269] The sub-holding cavity 2111 refers to the holding space formed after the partition 23 divides the holding cavity 211, and each sub-holding cavity 2111 contains damping particles 22; the sub-holding cavity 2111 can be a rectangular space, or a spherical space or a space of other shapes. The shape of the sub-holding cavity 2111 can also be determined according to the shape of the holding cavity 211 and the shape of the partition 23; the number of sub-holding cavities 2111 can be two, or three or more.

[0270] When there is a partition 23 in the outer shell 21, the collision area between the damping particles 22 and the outer shell 21 and the partition 23 increases, and the damping particles 22 are more likely to consume vibration energy; at the same time, the provision of the partition 23 also shortens the movement stroke of the damping particles 22 in each sub-accommodation cavity 2111. When the structural parts connected to the noise reduction device 20 vibrate slightly, the damping particles 22 also have a small stroke movement. At this time, the small stroke movement of the damping particles 22 can still collide with the partition 23 or the inner wall of the outer shell 21, so that the noise reduction device 20 can better adapt to slight vibrations and absorb the vibration energy generated by slight vibrations, thereby expanding the scope of application of the noise reduction device 20.

[0271] In this embodiment, when the structure connected to the noise reduction device 20 undergoes low-frequency and relatively slight vibration, this setting can make the damping particles 22 more likely to collide with the partition 23 or the inner wall of the outer shell 21, so that the damping particles 22 can better consume the vibration energy through collision, thereby enabling the noise reduction device 20 to better absorb and consume the vibration energy, and enabling the noise reduction device 20 to adapt to more types of vibration working conditions.

[0272] In some embodiments, the vehicle 100 includes a vibration structure 10 , a support structure, and a fixed structure, and the noise reduction device 20 is disposed on any one or more of the vibration structure 10 , the support structure, and the fixed structure.

[0273] The vibration structure 10 is a vibration source in the vehicle 100 and includes a second vibration device 11 and a first vibration device 12. The second vibration device 11 includes a wheel and other structures; the first vibration device 12 includes a compressor 121, a cooling component, a heat pump component, a driving module 123, and the like.

[0274] The supporting structure is a transmission path for vibration energy, which includes a suspension system 31 and may also be a bracket of the first vibration device 12 , such as a first bracket 33 and a second bracket 34 .

[0275] The fixed structure is the transmission end of vibration energy, which includes the car body, decorative parts, seats, steering wheel, floor, etc.

[0276] The noise reduction device 20 includes a shell 21, which has a receiving cavity 211. The damping particles 22 are received in the receiving cavity 211. The damping particles 22 are spherical metal structural parts. Bolts can be passed through the shell 21 to fix the noise reduction device 20 to the connected structural parts.

[0277] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A vehicle, characterized in that: include: Vibrating structures; a supporting structure connected to the vibration structure and used to provide support for the vibration structure; A noise reduction device, comprising a housing and damping particles, wherein a receiving cavity is provided in the housing, and the damping particles are movably received in the receiving cavity; The housing is connected to the vibration structure and / or the support structure.

2. The vehicle according to claim 1, characterized in that The vibration structure includes a first vibration device, and the first vibration device is capable of generating vibration when in operation; The housing is provided on the first vibration component, and / or the first vibration component is rigidly connected to the support structure, and the housing is provided on the support structure.

3. The vehicle according to claim 2, characterized in that The first vibration component includes a compressor, and the housing is provided on the compressor.

4. The vehicle according to claim 3, characterized in that The compressor comprises a low-pressure pipe and a high-pressure pipe, and the low-pressure pipe and / or the high-pressure pipe are provided with the shell; and / or The supporting structure further includes a first bracket, the compressor is arranged on the first bracket, and the shell is arranged on the first bracket.

5. The vehicle according to any one of claims 2 to 4, characterized in that: The first vibration component includes a heat exchange module, the heat exchange module includes a first casing, and the outer shell is provided on the first casing.

6. The vehicle according to claim 5, characterized in that The heat exchange module further includes a fan blade rotatably connected to the first housing, and the outer shell is provided at the connection portion between the first housing and the fan blade; and / or The supporting structure further includes a second bracket, the heat exchange module is arranged on the second bracket, and the shell is arranged on the second bracket.

7. The vehicle according to claim 5, characterized in that The heat exchange module includes a heat pump component and / or a cooling component.

8. The vehicle according to any one of claims 2 to 4, characterized in that: The first vibration device includes a driving module, and the housing is provided on the driving module.

9. The vehicle according to claim 8, characterized in that The driving module includes a driving shaft, and the housing is provided on the driving shaft.

10. The vehicle according to any one of claims 1 to 4, characterized in that The vibration structure includes a second vibration device, the movement of which is capable of coupling with the external environment of the vehicle and generating vibration; The second vibrating component is connected to the housing.

11. The vehicle according to any one of claims 1 to 4, characterized in that The supporting structure includes a suspension system, and the housing is connected to the suspension system.

12. The vehicle according to claim 11, characterized in that The vehicle further comprises a frame, to which the shell is connected.

13. The vehicle according to claim 12, characterized in that The suspension system includes a first link connected to a wheel of the vehicle, the first link also being connected to the vehicle frame; The shell is provided on the first rod; and / or the shell is provided at the connection portion between the vehicle frame and the first rod.

14. The vehicle according to claim 11, wherein: The suspension system further comprises a shock absorber, on which the housing is provided.

15. The vehicle according to any one of claims 1 to 4, characterized in that The vehicle further includes a fixed structure indirectly connected to the vibration structure, and the housing is provided on the fixed structure.

16. The vehicle according to claim 15, characterized in that The fixed structure includes at least one of a vehicle body, a decorative part, a seat, a steering wheel or a floor.

17. The vehicle according to claim 15, characterized in that The fixing structure includes a vehicle body roof cross beam, and the housing is provided in the middle of the vehicle body roof cross beam along the width direction of the vehicle; and / or The fixing structure includes a vehicle body panel, and the shell is arranged on the vehicle body panel.

18. The vehicle according to any one of claims 1 to 4, characterized in that The mass filling rate of the damping particles in the accommodating cavity is greater than or equal to 20% and less than 100%; and / or The volume filling rate of the damping particles in the accommodating cavity is greater than or equal to 20% and less than 100%.

19. The vehicle according to claim 18, characterized in that The mass filling rate of the damping particles in the accommodating cavity is in the range of 80% to 90%; and / or The volume filling rate of the damping particles in the accommodating cavity ranges from 80% to 90%.

20. The vehicle according to any one of claims 1 to 4, characterized in that The ratio of the mass of the noise reduction device to the mass of the connected structural parts is less than or equal to 50%.

21. The vehicle according to claim 20, characterized in that The ratio of the mass of the noise reduction device to the mass of the connected structural parts is in the range of 2% to 10%.

22. The vehicle according to any one of claims 1 to 4, characterized in that The damping particles are spherical metal structural parts.

23. The vehicle according to claim 22, characterized in that The diameter of the damping particles ranges from 0.001 mm to 100 mm.

24. The vehicle according to claim 23, characterized in that The diameter of the damping particles ranges from 0.1 mm to 10 mm.

25. The vehicle according to any one of claims 1 to 4, characterized in that A partition is provided in the shell, and the partition is used to separate the accommodating cavity into a plurality of sub-accommodating cavities, and each of the sub-accommodating cavities accommodates the damping particles.

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