Fan assembly and vehicle

Abstract

This application relates to a wind turbine assembly and a vehicle, belonging to the field of wind turbine technology. The wind turbine assembly includes a housing, a drive source, an airflow drive component, a first damping unit, a mounting bracket, a second damping unit, and a noise reduction unit. The housing includes an end wall and a peripheral wall, with one end of the end wall connected to the peripheral wall to form a receiving cavity. The drive source is located on the side of the end wall away from the receiving cavity. The airflow drive component is located inside the receiving cavity and is connected to the drive source. The first damping unit is connected between the drive source and the end wall. The mounting bracket is located on the end of the peripheral wall away from the end wall. The second damping unit is connected between the peripheral wall and the mounting bracket. The noise reduction unit is connected to the peripheral wall. This wind turbine assembly and vehicle can effectively suppress the vibration and noise generated during the operation of the wind turbine assembly, improving the driving comfort of the vehicle.

Description

Technical Field

[0001] This application relates to the field of wind turbine technology, specifically to a wind turbine component and a vehicle. Background Technology

[0002] The vibration and noise generated by the air conditioning fan in a vehicle directly affect driving comfort. Related technologies typically place a vibration damping pad between the fan motor and the casing to mitigate motor vibration during operation. However, the damping effect of the pad on the motor is limited. After the vibration is transmitted to the casing, the casing still generates significant vibration and noise. Furthermore, the rotation of the impeller inside the casing further amplifies the vibration amplitude and noise. Therefore, these technical solutions cannot effectively suppress the vibration and noise generated during fan operation, thus affecting vehicle driving comfort.

[0003] Therefore, how to effectively suppress the vibration and noise generated during the operation of the wind turbine and improve the driving comfort of the vehicle is a technical problem that this application urgently needs to solve. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a wind turbine assembly and a vehicle that can effectively suppress vibrations and noise generated during the operation of the wind turbine assembly, thereby improving the driving comfort of the vehicle.

[0005] In a first aspect, a wind turbine assembly is provided, comprising: The housing includes an end wall and a peripheral wall, wherein one end of the end wall is connected to one end of the peripheral wall to enclose and form a receiving cavity; The driving source is located on the side of the end wall away from the receiving cavity; An airflow drive is located within the receiving cavity, and the airflow drive is connected to the drive source; The first damping unit is connected between the drive source and the end wall; The mounting bracket is located at the end of the peripheral wall away from the end wall; The second damping unit is connected between the peripheral wall and the mounting bracket; The noise reduction unit is connected to the peripheral wall.

[0006] According to a first aspect of this application, the first damping unit includes: A first elastic support component is connected between the drive source and the end wall; A telescopic member is connected between the drive source and the end wall; wherein the length of the telescopic member is adjustable along the direction in which the first elastic support assembly supports the drive source.

[0007] According to a first aspect of this application, the number of the first elastic support components is multiple, the number of the telescopic members is multiple, and the multiple first elastic support components and the multiple telescopic members are arranged alternately along the circumference of the drive source.

[0008] According to a first aspect of this application, the first resilient support component includes: An elastic sleeve is connected between the drive source and the end wall; The first elastic element is fitted inside the elastic sleeve.

[0009] According to a first aspect of this application, the resilient sleeve comprises: The first connector is connected to the drive source; The second connector is connected to the end wall; A sleeve body, wherein the two ends of the sleeve body along its axial direction are respectively sleeved on the first connecting member and the second connecting member; wherein the first elastic member is sleeved in the sleeve body and is located between the first connecting member and the second connecting member.

[0010] According to a first aspect of this application, the end wall is provided with a connecting hole, and the second connector is clearance-fitted with the connecting hole.

[0011] According to a first aspect of this application, the inner wall of the sleeve body is provided with a groove, and the groove engages with the first elastic element.

[0012] According to a first aspect of this application, the second damping unit includes: An annular seat is fitted onto the end of the peripheral wall that is away from the end wall; An elastic damping body is connected to the inner wall of the annular seat, and the elastic damping body abuts against the side of the peripheral wall away from the receiving cavity; The second elastic support component is connected between the annular base and the mounting bracket.

[0013] According to a first aspect of this application, the peripheral wall is provided with an annular fitting portion at one end away from the end wall, the annular fitting portion being engaged with the annular seat body, and the annular fitting portion abutting against the elastic damping body.

[0014] According to a first aspect of this application, the second resilient support component includes: The limiting shaft includes a free end and a fixed end. The free end is movably connected to one of the annular seat and the mounting bracket along the axial direction of the limiting shaft, and the fixed end is fixedly connected to the other. The second elastic element is sleeved on the limiting shaft.

[0015] According to a first aspect of this application, the second resilient support component further includes: A limiting sleeve is slidably sleeved between the limiting shaft and the second elastic member along the axial direction of the limiting shaft; wherein the free end extends out of the limiting sleeve; the limiting sleeve is used to abut against the annular seat and the mounting bracket after the second elastic member is compressed to a target length.

[0016] According to a first aspect of this application, along the axial direction of the limiting shaft, the length of the limiting sleeve is less than the length of the second elastic member in the unforced state, and the length of the limiting sleeve is greater than the minimum length of the second elastic member after compression.

[0017] According to a first aspect of this application, the second damping unit further includes: An adjusting member is connected between the annular seat and the mounting bracket, and the stiffness of the adjusting member is adjustable along the support direction of the second elastic support assembly.

[0018] According to a first aspect of this application, the second damping unit further includes: A spherical bearing is mounted on the mounting bracket, and the adjusting member is connected to the spherical bearing.

[0019] According to a first aspect of this application, the number of the second elastic support components is multiple, the number of the adjusting members is multiple, and the multiple second elastic support components and the multiple adjusting members are arranged alternately along the circumference of the annular seat.

[0020] According to a first aspect of this application, the elastic damping body includes a first elastic damping layer, a mesh damping layer, and a first constraint layer connected sequentially from the inside to the outside along the radial direction of the annular seat. The first constraint layer is connected to the inner wall of the annular seat and is used to constrain and fix the first elastic damping layer and the mesh damping layer.

[0021] According to a first aspect of this application, the noise reduction unit includes: An elastic damping body is installed on the side of the peripheral wall near the receiving cavity; A sound-absorbing layer is installed on the side of the peripheral wall away from the receiving cavity.

[0022] According to a first aspect of this application, the elastic damping body includes two second elastic damping layers and a second constraint layer disposed between the two second elastic damping layers, wherein the second constraint layer is connected to the two second elastic damping layers on opposite sides along its thickness direction.

[0023] According to a first aspect of this application, the elastic damping body has a plurality of blind holes on the side near the receiving cavity.

[0024] Secondly, a vehicle is also provided, comprising: Vehicle body; The wind turbine assembly, as described above, is mounted on the vehicle body.

[0025] The wind turbine assembly and vehicle provided in this application achieve primary attenuation of vibrations generated by the drive source by installing a first damping unit between the drive source and the end wall; secondary attenuation of residual vibrations transmitted through the shell by installing a second damping unit between the peripheral wall and the mounting bracket, thus attenuating vibration energy along the vibration transmission path; and suppression of noise radiation by installing a noise reduction unit on the peripheral wall. These three components are structurally mounted on the same shell, forming a synergistic vibration and noise reduction system that isolates the vibration source, attenuates vibration energy along the vibration transmission path, and suppresses noise radiation. This effectively suppresses vibrations and noise generated during the operation of the wind turbine assembly, improving the driving comfort of the vehicle. Attached Figure Description

[0026] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments of this application in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0027] Figure 1 A schematic diagram of the structure of a wind turbine assembly provided in an exemplary embodiment of this application from a first perspective.

[0028] Figure 2 A schematic diagram of the structure of a wind turbine assembly provided in an exemplary embodiment of this application from a second perspective.

[0029] Figure 3 An exploded view of the drive source, the first damping unit, and the housing provided for an exemplary embodiment of this application.

[0030] Figure 4 An exploded view of a first damping unit provided as an exemplary embodiment of this application.

[0031] Figure 5 An exploded view of the housing, second shock-absorbing unit, and mounting bracket provided for an exemplary embodiment of this application.

[0032] Figure 6 A schematic diagram of the structure of a second elastic support component provided for an exemplary embodiment of this application.

[0033] Figure 7 This is a schematic diagram of the structure of a limiting shaft provided in an exemplary embodiment of this application.

[0034] Figure 8A cross-sectional view of an elastic damper provided for an exemplary embodiment of this application.

[0035] Figure 9 A cross-sectional view of a noise reduction unit and its peripheral wall provided for an exemplary embodiment of this application.

[0036] Figure 10 A cross-sectional view of an elastic damping body provided for an exemplary embodiment of this application.

[0037] Reference numerals: 100-Fan assembly; 110-Housing; 111-End wall; 1111-Connecting hole; 112-Peripheral wall; 1121-Annular mating part; 113-Receiving cavity; 120-Drive source; 130-Airflow drive component; 140-First damping unit; 141-First elastic support assembly; 1411-Elastic sleeve; 14111-First connector; 14112-Second connector; 14113-Sleeve body; 14114-Groove; 1412-First elastic element; 142-Telescopic element; 150-Mounting bracket; 160-Second damping Unit; 161-Annular seat; 162-Elastic damping body; 1621-First elastic damping layer; 1622-Mesh damping layer; 1623-First constraint layer; 163-Second elastic support assembly; 1631-Limiting shaft; 16311-Free end; 16312-Fixed end; 1632-Second elastic element; 1633-Limiting sleeve; 164-Adjusting element; 165-Joint bearing; 170-Noise reduction unit; 171-Elastic damping body; 1711-Second elastic damping layer; 1712-Second constraint layer; 1713-Blind hole; 172-Sound absorbing layer. Detailed Implementation

[0038] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein.

[0039] The vibration and noise generated by the air conditioning fan in a vehicle directly affect driving comfort. Related technologies typically place a vibration damping pad between the fan motor and the casing to mitigate motor vibration during operation. However, the damping effect of the pad on the motor is limited. After the vibration is transmitted to the casing, the casing still generates significant vibration and noise. Furthermore, the rotation of the impeller inside the casing further amplifies the vibration amplitude and noise. Therefore, these technical solutions cannot effectively suppress the vibration and noise generated during fan operation, thus affecting vehicle driving comfort.

[0040] The inventors discovered that the root cause of the above problems lies in the fact that the shock absorption structure in the related technologies is too simple (such as using shock absorption pads only between the motor and the housing), which only provides shock absorption for the drive source, without considering further attenuation of vibration on the vibration transmission path, and without suppressing the vibration of the housing and the noise radiation generated.

[0041] Therefore, the wind turbine assembly and vehicle provided in this application embodiment perform primary attenuation of vibrations generated by the drive source by setting a first damping unit between the drive source and the end wall; perform secondary attenuation of residual vibrations transmitted through the shell by setting a second damping unit between the peripheral wall and the mounting bracket, thus attenuating vibration energy along the vibration transmission path; and suppress noise radiation by setting a noise reduction unit on the peripheral wall. These three components are structurally mounted on the same shell, forming a synergistic vibration damping and noise reduction system that isolates the vibration source, attenuates vibration energy along the vibration transmission path, and suppresses noise radiation. This effectively suppresses the vibrations and noise generated during the operation of the wind turbine assembly, improving the driving comfort of the vehicle.

[0042] The wind turbine components and vehicles provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0043] Figure 1 A schematic diagram of the structure of a wind turbine assembly provided in an exemplary embodiment of this application from a first perspective. Figure 2 This is a schematic diagram of the structure of a wind turbine assembly provided as an exemplary embodiment of this application, viewed from a second perspective. Figure 1 and Figure 2 As shown, the fan assembly 100 includes a housing 110, a drive source 120, an airflow drive component 130, a first damping unit 140, a mounting bracket 150, a second damping unit 160, and a noise reduction unit 170. Figure 9 (As shown in the image).

[0044] like Figure 1 and Figure 2 As shown, the housing 110 includes an end wall 111 and a peripheral wall 112. The end wall 111 is connected to one end of the peripheral wall 112 to enclose and form a receiving cavity 113. The housing 110 can serve as a mounting carrier for the drive source 120, and the receiving cavity 113 can be used to accommodate the airflow drive component 130. Therefore, the housing 110 becomes the main carrier for vibration transmission and noise radiation.

[0045] like Figure 1 and Figure 2As shown, the drive source 120 is located on the side of the end wall 111 away from the receiving cavity 113, that is, the drive source 120 is disposed outside the housing 110. The airflow drive 130 is located inside the receiving cavity 113 and is connected to the drive source 120. The power of the drive source 120 is transmitted to the airflow drive 130 to drive the airflow. The airflow flows out from the end of the peripheral wall 112 away from the end wall 111, that is, the end of the peripheral wall 112 away from the end wall 111 can serve as an air outlet.

[0046] It should be noted that the vibration generated by the operation of the drive source 120 will be transmitted to the housing 110, and the vibration and noise generated by the airflow drive component 130 when driving the airflow will also be transmitted to the housing 110.

[0047] In one embodiment, the drive source 120 may be a motor, the airflow drive component 130 may be an impeller, and the output shaft of the motor is connected to the impeller to drive the impeller to rotate and generate airflow.

[0048] In one embodiment, the drive source 120 may also be a hydraulic motor, and the airflow drive component 130 may be a fan blade. The output shaft of the hydraulic motor is connected to the fan blade to drive the fan blade to rotate and generate airflow.

[0049] In one embodiment, the drive source 120 may also be a linear motor, and the airflow drive 130 may be a vibrating diaphragm. The linear motor drives the vibrating diaphragm to reciprocate linearly, which can generate airflow.

[0050] like Figure 1 As shown, the first damping unit 140 is connected between the drive source 120 and the end wall 111. The first damping unit 140 can isolate and attenuate the vibration at the source from the drive source 120 to the housing 110, reducing the vibration energy transmitted to the housing 110, thereby performing primary attenuation of the vibration generated by the drive source 120.

[0051] like Figure 1 As shown, the mounting bracket 150 is located at the end of the peripheral wall 112 away from the end wall 111. In practical applications, the mounting bracket 150 can be used to fix the fan assembly 100 to an external structure (such as the vehicle body, air conditioning unit, etc.). Vibrations of the housing 110 will be transmitted to the external structure through the mounting bracket 150, affecting the vehicle's passenger experience.

[0052] Therefore, a second damping unit 160 is connected between the peripheral wall 112 and the mounting bracket 150 to perform secondary attenuation of the residual vibration transmitted through the housing 110. In other words, the second damping unit 160 can attenuate the vibration transmitted from the housing 110 to the mounting bracket 150, and further suppress the vibration that remains after attenuation by the first damping unit 140, thus forming a two-stage damping system with the first damping unit 140.

[0053] like Figure 1 As shown, the noise reduction unit 170 is connected to the peripheral wall 112. The noise reduction unit 170 can absorb noise and vibration energy and effectively suppress the noise radiated outward by the shell 110.

[0054] Therefore, the wind turbine assembly 100 and vehicle provided in this application embodiment achieve primary attenuation of vibrations generated by the drive source 120 by setting a first damping unit 140 between the drive source 120 and the end wall 111; secondary attenuation of residual vibrations transmitted through the housing 110 by setting a second damping unit 160 between the peripheral wall 112 and the mounting bracket 150, thereby attenuating vibration energy along the vibration transmission path; and suppression of noise radiation by setting a noise reduction unit 170 on the peripheral wall 112. These three components are structurally mounted on the same housing 110, forming a synergistic vibration damping and noise reduction system that isolates the vibration source, attenuates vibration energy along the vibration transmission path, and suppresses noise radiation. This effectively suppresses vibrations and noise generated during the operation of the wind turbine assembly 100, improving the driving comfort of the vehicle.

[0055] Figure 3 An exploded view of the drive source, the first damping unit, and the housing provided for an exemplary embodiment of this application. Figure 4 An exploded view of a first damping unit provided as an exemplary embodiment of this application.

[0056] like Figure 3 and Figure 4 As shown, the first damping unit 140 may include a first elastic support component 141 and a telescopic component 142, both of which are connected between the drive source 120 and the end wall 111.

[0057] It should be noted that the first elastic support component 141 can provide elastic support and absorb vibration energy, thereby attenuating the vibration transmitted from the drive source 120 to the housing 110.

[0058] It should be noted that the telescopic member 142 is connected between the drive source 120 and the end wall 111, and the telescopic member 142 is in the direction in which the first elastic support assembly 141 supports the drive source 120 (see reference for details). Figure 3The length of the telescopic component 142 (in the Z-axis direction) is adjustable. That is, the telescopic component 142 and the first elastic support assembly 141 jointly support the drive source 120, and they are distributed in parallel in the support direction of the drive source 120. By changing its length, the telescopic component 142 can change the preload of the drive source 120 on the first elastic support assembly 141, thereby adjusting the overall equivalent stiffness of the first damping unit 140. This allows the stiffness of the first damping unit 140 to be adaptively adjusted according to the actual vibration conditions, thus maintaining a superior damping effect under various working conditions. For example, if the length of the telescopic component 142 increases, the preload of the drive source 120 on the first elastic support assembly 141 decreases, and the overall equivalent stiffness of the first damping unit 140 increases; conversely, the overall equivalent stiffness of the first damping unit 140 decreases.

[0059] In one embodiment, the telescopic member 142 is configured as an electrostrictor that uses an electric field to elongate or shorten. For example, the electrostrictor may be a piezoelectric ceramic stack actuator. The electrostrictor generates a corresponding axial displacement according to the applied voltage signal, changing the preload of the drive source 120 on the first elastic support assembly 141, thereby adjusting the overall equivalent stiffness of the first damping unit 140. It should be understood that the electrostrictor has a fast response speed and high control precision, and can cope with rapidly changing vibration conditions to achieve rapid and precise adjustment.

[0060] In one embodiment, the telescopic member 142 can also be a magnetostrictive device. Alternatively, the extension or retraction of the telescopic member 142 can be achieved by using a built-in linear motor.

[0061] like Figure 3 As shown, there are multiple first elastic support components 141 and multiple telescopic components 142. The multiple first elastic support components 141 and multiple telescopic components 142 are arranged alternately along the circumference of the drive source 120.

[0062] It should be noted that the multiple first elastic support components 141 are distributed circumferentially along the drive source 120, which can apply elastic support force to different parts of the drive source 120 in the circumferential direction, thereby improving the support stability of the drive source 120 and preventing the drive source 120 from tilting excessively. The multiple telescopic components 142 are distributed circumferentially along the drive source 120, which can apply active adjustment support force to different parts of the drive source 120 in the circumferential direction.

[0063] Furthermore, by arranging multiple first elastic support components 141 and multiple telescopic components 142 alternately along the circumference of the drive source 120, the equivalent stiffness of the first damping unit 140 at different locations can be kept consistent, making it less likely to have problems with local excessively high or low stiffness, thereby making the damping effect of the first damping unit 140 in the circumference of the drive source 120 more uniform.

[0064] like Figure 4 As shown, the first elastic support assembly 141 may include an elastic sleeve 1411 and a first elastic element 1412. The elastic sleeve 1411 is connected between the drive source 120 and the end wall 111, and the first elastic element 1412 is sleeved inside the elastic sleeve 1411. The elastic sleeve 1411 can dissipate vibration energy through elastic deformation, while the first elastic element 1412 can provide elastic support and also dissipate vibration energy through elastic deformation. The elastic support structure composed of the first elastic element 1412 and the elastic sleeve 1411 not only has better support performance than a single damping structure, preventing the drive source 120 from colliding with the housing 110, but also has a significant attenuation effect on high-frequency vibrations (such as electromagnetic vibration, bearing vibration, etc.) generated by the drive source 120.

[0065] like Figure 3 and Figure 4 As shown, the elastic sleeve 1411 may include a first connector 14111, a second connector 14112, and a sleeve body 14113. The first connector 14111 is connected to the drive source 120, the second connector 14112 is connected to the end wall 111, and the two ends of the sleeve body 14113 along its axial direction are respectively sleeved on the first connector 14111 and the second connector 14112.

[0066] It should be noted that the sleeve body 14113 can form a continuous elastic damping layer between the first connector 14111 and the second connector 14112, ensuring that the vibration load is fully dissipated by the elastic damping of the sleeve body 14113 during transmission, thereby improving the vibration reduction effect.

[0067] It should be noted that the first elastic element 1412 is sleeved inside the sleeve body 14113 and is located between the first connector 14111 and the second connector 14112. The first elastic element 1412 is subjected to the squeezing action of the first connector 14111 and the second connector 14112. The first elastic element 1412 can provide elastic support to prevent the drive source 120 from colliding with the housing 110.

[0068] It should be noted that the first connector 14111 and the second connector 14112 can effectively limit the first elastic element 1412, prevent the first elastic element 1412 from detaching from the sleeve body 14113, and ensure the overall structural stability of the elastic sleeve 1411.

[0069] In one embodiment, the sleeve body 14113 can be made of viscoelastic damping rubber material (such as silicone rubber, nitrile rubber, etc.). Through its viscous properties, it can convert some vibration energy into heat energy and consume it, which has a significant attenuation effect on high-frequency vibration.

[0070] In one embodiment, the first elastic element 1412 may be a helical spring, disc spring, wave spring, etc. The first elastic element 1412 is sleeved inside the elastic sleeve 1411, which can improve the overall elastic support force and further absorb more vibration energy, thereby improving the shock absorption effect.

[0071] like Figure 3 and Figure 4 As shown, the end wall 111 is provided with a connecting hole 1111, and the second connecting member 14112 is clearance-fitted with the connecting hole 1111. That is, the outer diameter of the second connecting member 14112 is smaller than the diameter of the connecting hole 1111, and a radial floating gap is formed between the second connecting member 14112 and the inner wall of the connecting hole 1111.

[0072] It should be noted that the clearance fit between the second connector 14112 and the connecting hole 1111 allows the drive source 120 to have free movement in the radial direction of the connecting hole 1111. When the drive source 120 generates radial vibration during operation, the radial vibration is absorbed by the radial floating gap, thereby preventing the vibration from being directly transmitted to the housing 110 through rigid contact. This achieves effective isolation of radial vibration, solves the problem of suppressing radial vibration in related technologies, and improves the overall vibration reduction effect.

[0073] In one embodiment, the width of the radial floating gap between the second connector 14112 and the inner wall of the connecting hole 1111 can be in the range of 0.5mm to 2mm, for example, it can be 0.5mm, 1mm, 2mm, etc.

[0074] like Figure 4 As shown, the inner wall of the sleeve body 14113 is provided with a groove 14114, which engages with the first elastic member 1412. This creates a mechanical interlock between the first elastic member 1412 and the sleeve body 14113, preventing the first elastic member 1412 from sliding out of the sleeve body 14113 under vibration loads, ensuring that the first elastic member 1412 is always in the installed position, and effectively maintaining the support and shock absorption performance of the first elastic member 1412.

[0075] In one embodiment, the first elastic element 1412 is constructed as a helical spring, and the groove 14114 is correspondingly constructed as a helical groove. The helical shape of the helical groove matches the helical shape of the helical spring. After the helical spring is inserted into the helical groove, each turn of the helical spring is constrained by the helical groove, so that different parts of the helical spring along its length direction are interlocked with the helical groove, which can further improve the assembly stability of the first elastic element 1412 in the sleeve body 14113.

[0076] In one embodiment, the first elastic element 1412 is constructed as a disc spring, and the corresponding groove 14114 is constructed as a stepped groove, which engages with the disc spring.

[0077] In one embodiment, the first elastic element 1412 is constructed as a wave spring, and the groove 14114 is correspondingly constructed as an annular groove, which engages with the wave spring.

[0078] In one embodiment, when the first elastic element 1412 is a helical spring, the helical spring can be made of a shape memory alloy with a phase transition temperature ranging from -20°C to 80°C. The elastic modulus of a helical spring made of shape memory alloy changes with the phase transition state at different temperatures, allowing the stiffness of the helical spring to adaptively adjust with temperature, maintaining suitable damping performance under both low and high temperature conditions. Setting the phase transition temperature to -20°C to 80°C covers the temperature range commonly encountered in vehicle operation.

[0079] Figure 5 An exploded view of the housing, second shock-absorbing unit, and mounting bracket provided for an exemplary embodiment of this application. Figure 6 This is a schematic diagram of the structure of a second elastic support component provided for an exemplary embodiment of this application. Figure 5 and Figure 6 As shown, the second damping unit 160 may include an annular seat 161, an elastic damping body 162, and a second elastic support assembly 163.

[0080] like Figure 5 As shown, the annular seat 161 is fitted onto the end of the peripheral wall 112 away from the end wall 111. The elastic damping body 162 is connected to the inner wall of the annular seat 161. The elastic damping body 162 abuts against the side of the peripheral wall 112 away from the receiving cavity 113. The radial and circumferential vibrations of the peripheral wall 112 can be attenuated by the elastic deformation and damping energy dissipation of the elastic damping body 162.

[0081] like Figure 5 As shown, the second elastic support assembly 163 is connected between the annular seat 161 and the mounting bracket 150, providing elastic support along the axial direction of the annular seat 161 between the annular seat 161 and the mounting bracket 150. Vibrations of the peripheral wall 112 are attenuated by the second elastic support assembly 163 before being transmitted to the mounting bracket 150, thus achieving the effect of attenuating vibration energy along the vibration transmission path.

[0082] Therefore, the second elastic support component 163 and the elastic damper 162 together suppress the residual vibration transmitted by the shell 110 in multiple directions such as its axial, circumferential and radial directions, and achieve effective attenuation of residual vibration in multiple directions.

[0083] In one embodiment, to improve the installation compatibility between the elastic damper 162 and the annular seat 161, the elastic damper 162 can be set as a whole in an arc-shaped structure, and the curvature of the elastic damper 162 can be matched with the curvature of the inner wall of the annular seat 161. In this way, the elastic damper 162 can fit more tightly with the inner wall of the annular seat 161, thereby improving the assembly stability of the elastic damper 162.

[0084] like Figure 5 As shown, the end of the peripheral wall 112 away from the end wall 111 is provided with an annular mating part 1121.

[0085] It should be noted that the annular mating part 1121 is engaged inside the annular seat 161, which enables the positioning and mating between the peripheral wall 112 and the annular seat 161, thereby improving assembly efficiency and assembly accuracy.

[0086] It should be noted that the annular mating part 1121 abuts against the elastic damping body 162, for example, the annular mating part 1121 and the elastic damping body 162 adopt an interference fit. In this way, the elastic damping body 162 can apply a continuous elastic constraint force to the annular mating part 1121, thereby ensuring that a continuous and reliable elastic contact is formed between the annular mating part 1121 and the elastic damping body 162 to achieve vibration attenuation.

[0087] In one embodiment, the annular mating portion 1121 may be formed by a portion of the outer wall of the peripheral wall 112 protruding radially along the peripheral wall 112 at one end away from the end wall 111; or, the annular mating portion 1121 may also be formed by thinning a portion of the outer wall of the peripheral wall 112 at one end away from the end wall 111.

[0088] Figure 7 This is a schematic diagram of the structure of a limiting shaft provided for an exemplary embodiment of this application. Figure 6 and Figure 7 As shown, the second elastic support assembly 163 includes a limiting shaft 1631 and a second elastic element 1632.

[0089] like Figure 6 and Figure 7 As shown, the limiting shaft 1631 includes a free end 16311 and a fixed end 16312. The free end 16311 is movably connected to one of the annular seat 161 and the mounting bracket 150 along the axial direction of the limiting shaft 1631, while the fixed end 16312 is fixedly connected to the other of the annular seat 161 and the mounting bracket 150. During vibration, the limiting shaft 1631 can slide axially relative to the connected object (annular seat 161 or mounting bracket 150), that is, the annular seat 161 and the mounting bracket 150 can move relative to each other along the axial direction of the limiting shaft 1631.

[0090] like Figure 6 As shown, the second elastic element 1632 is sleeved on the limiting shaft 1631. The limiting shaft 1631 can provide the second elastic element 1632 with a radial constraint along the limiting shaft 1631 and a axial guide along the limiting shaft 1631, so as to prevent the second elastic element 1632 from shifting under vibration conditions.

[0091] It should be understood that under vibration conditions, the limiting shaft 1631 slides along its axial direction relative to the connected object (ring seat 161 or mounting bracket 150). The two ends of the second elastic element 1632 are pressed against the ring seat 161 and the mounting bracket 150. The second elastic element 1632 deforms and provides elastic support between the ring seat 161 and the mounting bracket 150. The vibration of the ring seat 161 is attenuated by the second elastic element 1632 and then transmitted to the mounting bracket 150, further attenuating the vibration energy on the vibration transmission path.

[0092] In one embodiment, one of the annular seat 161 and the mounting bracket 150 is provided with a mounting hole, and the other is provided with a threaded hole. The free end 16311 is movably fitted into the mounting hole along the axial direction of the limiting shaft 1631, and the fixed end 16312 is threadedly engaged with the threaded hole. This achieves both axial mobility of the free end 16311 along the limiting shaft 1631 and fixation of the fixed end 16312, resulting in a simple overall structure that is easy to assemble and disassemble. Simultaneously, the mounting hole can effectively constrain the free end 16311 radially, preventing it from shifting under vibration conditions.

[0093] like Figure 6 As shown, the second elastic support assembly 163 also includes a limiting sleeve 1633.

[0094] It should be noted that the limiting sleeve 1633 is slidably sleeved between the limiting shaft 1631 and the second elastic member 1632 along the axial direction of the limiting shaft 1631, and the free end 16311 extends out of the limiting sleeve 1633, ensuring that the free end 16311 of the limiting shaft 1631 can still slide freely relative to the annular seat 161 or the mounting bracket 150 along the axial direction of the limiting shaft 1631, and avoiding the limiting sleeve 1633 from obstructing the sliding of the free end 16311.

[0095] It should be noted that after the second elastic element 1632 is compressed to the target length (which can be set according to actual conditions, and this embodiment does not specifically limit it), the limiting sleeve 1633 abuts against the annular seat 161 and the mounting bracket 150. When the second elastic element 1632 is compressed to a height equal to the height of the limiting sleeve 1633, both ends of the limiting sleeve 1633 abut against the annular seat 161 and the mounting bracket 150 respectively, and the rigid support prevents the annular seat 161 and the mounting bracket 150 from continuing to approach each other. In this way, on the one hand, it can prevent the annular seat 161 and the mounting bracket 150 from colliding relative to each other and reducing damage; on the other hand, it can limit the annular seat 161 and the mounting bracket 150 from continuing to apply pressure to the second elastic element 1632, preventing the second elastic element 1632 from being damaged due to exceeding the limit compression, and effectively extending the service life of the second damping unit 160.

[0096] Specifically, along the axial direction of the limiting shaft 1631, the length of the limiting sleeve 1633 is less than the length of the second elastic element 1632 in its unloaded state. This ensures that, in the unloaded state of the second elastic element 1632, there is a gap between one end of the limiting sleeve 1633 and the annular seat 161 (or the mounting bracket 150), preventing the limiting sleeve 1633 from prematurely triggering the limiting position. The second elastic element 1632 can freely compress and rebound under normal pressure to achieve shock absorption. Furthermore, the length of the limiting sleeve 1633 is greater than the minimum length of the second elastic element 1632 after compression. This ensures that before the second elastic element 1632 is compressed to its limit, the limiting sleeve 1633 has already abutted against the annular seat 161 and the mounting bracket 150, providing rigid support. This prevents the second elastic element 1632 from breaking due to continuous pressure after being compressed to its minimum length, effectively extending the service life of the second elastic element 1632.

[0097] like Figure 5 As shown, the second damping unit 160 may further include an adjusting member 164. The adjusting member 164 is connected between the annular seat 161 and the mounting bracket 150, and the stiffness of the adjusting member 164 is adjustable along the support direction of the second elastic support assembly 163. That is, the adjusting member 164 and the second elastic support assembly 163 jointly support the annular seat 161, and the two are distributed in parallel in the support direction of the annular seat 161.

[0098] It should be noted that the adjusting component 164 can adjust the overall damping characteristics of the second damping unit 160 by changing its own stiffness. Therefore, when the vibration conditions change, the adjusting component 164 can change its stiffness accordingly to match the damping of the second damping unit 160 with the current conditions, thereby improving the adaptability of the second damping unit 160 to different conditions and maintaining a better damping effect under various conditions.

[0099] like Figure 5 As shown, there are multiple second elastic support components 163 and multiple adjusting components 164. The multiple second elastic support components 163 and multiple adjusting components 164 are arranged alternately along the circumference of the annular seat 161.

[0100] It should be noted that multiple second elastic support components 163 are distributed circumferentially along the annular seat 161, which can apply elastic support force to different parts of the annular seat 161 in the circumferential direction, improve the support stability of the annular seat 161, and prevent the annular seat 161 from tilting excessively.

[0101] Furthermore, by arranging multiple second elastic support components 163 and multiple adjusting components 164 alternately along the circumference of the annular seat 161, the damping characteristics of the second damping unit 160 at different locations can be kept consistent, making it less likely for local damping to be too large or too small, thereby making the damping effect of the second damping unit 160 in the circumference of the annular seat 161 more uniform.

[0102] In one embodiment, the regulating element 164 is configured as a hydraulic damping regulating valve, such as an electromagnetic proportional throttle valve. The hydraulic damping regulating valve changes the opening of its valve port according to the input electrical signal, thereby changing the hydraulic damping coefficient. It should be noted that the hydraulic damping regulating valve has a large damping adjustment range and a fast response speed, which can cope with rapidly changing vibration conditions and achieve fast and precise adjustment.

[0103] In one embodiment, the fan assembly 100 may further include a vibration sensor and a controller. Vibration sensors are provided on the outer casing of the drive source 120 and the peripheral wall 112 of the housing 110, and are used to collect vibration signals from the drive source 120 and the housing 110 in real time. The controller may employ a DSP digital signal processor and is located in a control box away from the drive source 120 and the housing 110 to avoid being subjected to severe vibrations and ensure operational reliability. The controller is electrically connected to the vibration sensor via a signal harness to receive the vibration signals collected in real time by the vibration sensor; simultaneously, the controller is electrically connected to the telescopic member 142 (electrostrictive drive element) and the regulating member 164 (hydraulic damping regulating valve) via drive harnesses. During operation, after receiving the vibration signal, the controller converts the analog signal into a digital signal via a built-in analog-to-digital converter module, and then the DSP chip runs a preset control algorithm for calculation. Based on the calculation results, the controller outputs a voltage control signal to the telescopic component 142 to adjust its axial telescopic amount, thereby changing the equivalent stiffness of the first damping unit 140. Simultaneously, the controller outputs a PWM current control signal to the regulating component 164 to adjust the opening of its valve, thereby changing the damping characteristics of the second damping unit 160. Thus, the damping performance of the first damping unit 140 and the second damping unit 160 can be matched in real time to different vibration conditions, maintaining a superior damping effect under various operating conditions.

[0104] like Figure 5 As shown, the second damping unit 160 also includes a spherical bearing 165, which is mounted on the mounting bracket 150, and the adjusting member 164 is connected to the spherical bearing 165.

[0105] It should be noted that the spherical bearing 165 allows the adjusting member 164 to deflect within a certain angular range relative to the mounting bracket 150. When a small deflection angle occurs between the annular seat 161 and the mounting bracket 150 due to vibration, the spherical bearing 165 can adaptively compensate for this deflection angle. In this way, on the one hand, it avoids the adjusting member 164 from bearing additional bending loads, preventing structural damage to the adjusting member 164 due to bending stress, thereby improving the working reliability of the adjusting member 164 and extending its service life; on the other hand, it can suppress torsional vibration between the annular seat 161 and the mounting bracket 150, improving the vibration damping effect.

[0106] Figure 8 A cross-sectional view of an elastic damper provided as an exemplary embodiment of this application. Figure 5 and Figure 8As shown, the elastic damping body 162 includes a first elastic damping layer 1621, a mesh damping layer 1622, and a first restraint layer 1623 connected sequentially from the inside to the outside along the radial direction of the annular seat 161. The first restraint layer 1623 is connected to the inner wall of the annular seat 161 and is used to restrain and fix the first elastic damping layer 1621 and the mesh damping layer 1622.

[0107] It should be noted that the first elastic damping layer 1621 is in direct contact with the peripheral wall 112, and can attenuate low-frequency large-amplitude vibrations through the damping energy dissipation mechanism. The mesh damping layer 1622 can effectively attenuate mid-frequency vibrations through dry friction energy dissipation. The first constraint layer 1623 is located on the outermost layer and is connected to the inner wall of the annular seat 161, providing structural support for the first elastic damping layer 1621 and the mesh damping layer 1622, preventing the first elastic damping layer 1621 and the mesh damping layer 1622 from falling off under vibration loads, and ensuring the structural integrity of the elastic damper 162.

[0108] It should be understood that during the transmission of vibration load from the inside to the outside along the radial direction of the annular seat 161, it is gradually attenuated by the multi-layer structure of the elastic damper 162, and the elastic damper 162 can perform targeted attenuation for vibrations of different frequency bands, thereby achieving the suppression of multi-frequency vibrations.

[0109] It should be noted that, combined with the first damping unit 140 mentioned above, it can effectively attenuate high-frequency vibrations. The second elastic support component 163 in the second damping unit 160 can effectively attenuate high-frequency vibrations, and the elastic damping body 162 in the second damping unit 160 can effectively attenuate mid-frequency and low-frequency vibrations. In this way, effective suppression of vibrations across the entire frequency band is achieved, further improving the damping effect.

[0110] In one embodiment, the first elastic damping layer 1621, the mesh damping layer 1622, and the first constraint layer 1623 are integrally formed. For example, they can be integrally formed by a vulcanization process. Integral forming allows the three-layer structure to have higher bonding strength between adjacent layers after forming, so that the three layers are less likely to separate under long-term vibration loads, significantly improving the structural durability of the elastic damper 162.

[0111] In one embodiment, the first elastic damping layer 1621 may be made of elastic materials with high damping properties, such as butyl rubber, silicone rubber, and chloroprene rubber.

[0112] In one embodiment, the mesh damping layer 1622 is constructed as a mesh structure formed by metal wires. The metal wires can be stainless steel wire, copper wire, nickel alloy wire, etc. Under vibration load, relative sliding and dry friction occur between the metal wires, and the mid-frequency vibration is effectively attenuated through the dry friction energy dissipation mechanism.

[0113] In one embodiment, the first constraint layer 1623 may be made of aluminum alloy, which, by utilizing its high rigidity, can effectively constrain the deformation of the first elastic damping layer 1621 and the mesh damping layer 1622, providing stable support.

[0114] Figure 9 A cross-sectional view of a noise reduction unit and its peripheral wall provided for an exemplary embodiment of this application. Figure 9 As shown, the noise reduction unit 170 includes an elastic damping body 171 and a sound-absorbing layer 172.

[0115] It should be noted that the elastic damping body 171 is installed on the side of the peripheral wall 112 near the receiving cavity 113, that is, on the inner wall of the peripheral wall 112. The vibration energy transmitted to the peripheral wall 112 is consumed by the deformation of the elastic damping material, thereby suppressing the noise radiation generated by the vibration of the shell 110.

[0116] It should be noted that the sound-absorbing layer 172 is installed on the side of the peripheral wall 112 away from the receiving cavity 113, that is, on the outer wall of the peripheral wall 112, to absorb the noise radiated outward through the peripheral wall 112 and reduce the intensity of the noise propagating outward.

[0117] It should be understood that the elastic damper 171 and the sound-absorbing layer 172 can work together to control noise from both the inner and outer sides of the peripheral wall 112, significantly suppressing the outward radiation and diffusion of noise and improving the driving comfort of the vehicle.

[0118] Figure 10 A cross-sectional view of an elastic damping body provided for an exemplary embodiment of this application. Figure 10 As shown, the elastic damping body 171 includes two second elastic damping layers 1711 and a second constraint layer 1712 disposed between the two second elastic damping layers 1711. The second constraint layer 1712 is connected to the two second elastic damping layers 1711 on opposite sides of its thickness.

[0119] It should be noted that the second constraint layer 1712 can constrain and fix both second elastic damping layers 1711. Both second elastic damping layers 1711 can participate in consuming vibration energy and suppressing noise radiation, which can significantly improve the noise radiation suppression effect of the elastic damping body 171.

[0120] In one embodiment, the second elastic damping layer 1711 may be made of acrylate viscoelastic damping material, and the second constraint layer 1712 may be made of metal foil, such as aluminum foil, copper foil, etc.

[0121] like Figure 10As shown, the elastic damper 171 has multiple blind holes 1713 on the side near the receiving cavity 113. The open end of the blind hole 1713 is located on the surface of the elastic damper 171, and the closed end extends into the elastic damper 171 (the extension position can be determined according to the actual situation, just to ensure that it does not penetrate the elastic damper 171), thus forming a micro resonant cavity structure.

[0122] It should be noted that the micro-resonant cavity formed by the blind hole 1713 operates based on the Helmholtz resonance principle (the specific principle and related technologies have been described in detail), and can specifically absorb noise in a specific frequency band. In this way, the elastic damper 171 adds the resonant absorption capability for specific frequency band noise on the basis of elastic damping energy dissipation, thus broadening the noise reduction frequency band coverage.

[0123] In one embodiment, the sound-absorbing layer 172 is constructed as a porous structure. It should be noted that the porous structure has a good absorption effect on broadband noise, which can complement the elastic damping energy dissipation of the elastic damping body 171 and the resonant absorption of the blind holes, so that the noise reduction unit 170 can effectively suppress noise with different characteristics.

[0124] In one embodiment, the sound-absorbing layer 172 can be made of porous sound-absorbing materials such as melamine foam, polyurethane foam, or fiberglass wool.

[0125] like Figure 9 As shown, there are multiple elastic damping bodies 171, which are distributed in an array. This increases the overall coverage area of ​​the elastic damping bodies 171 on the peripheral wall 112, improving the overall suppression effect on the vibration of the peripheral wall 112; furthermore, the array distribution allows multiple elastic damping bodies 171 to cover different areas of the peripheral wall 112, ensuring that the vibration of each area of ​​the peripheral wall 112 can be effectively suppressed.

[0126] This application also provides a vehicle, which includes a vehicle body and a fan assembly 100 as described in the previous embodiment, the fan assembly 100 being mounted on the vehicle body.

[0127] It should be understood that the vehicle provided in this application embodiment includes all the functions of the wind turbine assembly 100, and its beneficial effects can be referred to the beneficial effects of the aforementioned wind turbine assembly 100.

[0128] In one embodiment, the vehicle can be a passenger vehicle, a commercial vehicle, an engineering vehicle, etc.

[0129] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0130] Words such as “including,” “contains,” and “has” are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The words “or” and “and” as used here refer to the words “and / or,” and are used interchangeably with them unless the context explicitly indicates otherwise. The word “such as” as used here refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0131] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A fan assembly, characterized in that, include: The housing includes an end wall and a peripheral wall, wherein one end of the end wall is connected to one end of the peripheral wall to enclose and form a receiving cavity; The driving source is located on the side of the end wall away from the receiving cavity; An airflow drive is located within the receiving cavity, and the airflow drive is connected to the drive source; The first damping unit is connected between the drive source and the end wall; The mounting bracket is located at the end of the peripheral wall away from the end wall; The second damping unit is connected between the peripheral wall and the mounting bracket; The noise reduction unit is connected to the peripheral wall.

2. The wind turbine assembly according to claim 1, characterized in that, The first damping unit includes: A first elastic support component is connected between the drive source and the end wall; A telescopic member is connected between the drive source and the end wall; wherein the length of the telescopic member is adjustable along the direction in which the first elastic support assembly supports the drive source.

3. The wind turbine assembly according to claim 2, characterized in that, The number of the first elastic support components is multiple, the number of the telescopic components is multiple, and the multiple first elastic support components and the multiple telescopic components are arranged alternately along the circumference of the drive source.

4. The wind turbine assembly according to claim 2, characterized in that, The first elastic support component includes: An elastic sleeve is connected between the drive source and the end wall; The first elastic element is fitted inside the elastic sleeve.

5. The wind turbine assembly according to claim 4, characterized in that, The elastic sleeve includes: The first connector is connected to the drive source; The second connector is connected to the end wall; A sleeve body, wherein the two ends of the sleeve body along its axial direction are respectively sleeved on the first connecting member and the second connecting member; wherein the first elastic member is sleeved in the sleeve body and is located between the first connecting member and the second connecting member.

6. The wind turbine assembly according to claim 5, characterized in that, The end wall is provided with a connecting hole, and the second connector is clearance-fitted with the connecting hole.

7. The wind turbine assembly according to claim 5, characterized in that, The inner wall of the sleeve body is provided with a groove, which engages with the first elastic element.

8. The wind turbine assembly according to any one of claims 1 to 7, characterized in that, The second damping unit includes: An annular seat is fitted onto the end of the peripheral wall that is away from the end wall; An elastic damping body is connected to the inner wall of the annular seat, and the elastic damping body abuts against the side of the peripheral wall away from the receiving cavity; The second elastic support component is connected between the annular base and the mounting bracket.

9. The wind turbine assembly according to claim 8, characterized in that, The peripheral wall is provided with an annular fitting part at one end away from the end wall. The annular fitting part is engaged with the annular seat body and abuts against the elastic damping body.

10. The wind turbine assembly according to claim 8, characterized in that, The second elastic support component includes: The limiting shaft includes a free end and a fixed end. The free end is movably connected to one of the annular seat and the mounting bracket along the axial direction of the limiting shaft, and the fixed end is fixedly connected to the other. The second elastic element is sleeved on the limiting shaft.

11. The wind turbine assembly according to claim 10, characterized in that, The second elastic support component also includes: A limiting sleeve is slidably sleeved between the limiting shaft and the second elastic member along the axial direction of the limiting shaft; wherein the free end extends out of the limiting sleeve; the limiting sleeve is used to abut against the annular seat and the mounting bracket after the second elastic member is compressed to a target length.

12. The wind turbine assembly according to claim 11, characterized in that, Along the axial direction of the limiting shaft, the length of the limiting sleeve is less than the length of the second elastic element in the unforced state, and the length of the limiting sleeve is greater than the minimum length of the second elastic element after compression.

13. The wind turbine assembly according to claim 8, characterized in that, The second damping unit also includes: An adjusting member is connected between the annular seat and the mounting bracket, and the stiffness of the adjusting member is adjustable along the support direction of the second elastic support assembly.

14. The wind turbine assembly according to claim 13, characterized in that, The second damping unit also includes: A spherical bearing is mounted on the mounting bracket, and the adjusting member is connected to the spherical bearing.

15. The wind turbine assembly according to claim 13, characterized in that, The number of the second elastic support components is multiple, and the number of the adjusting components is multiple, with the multiple second elastic support components and the multiple adjusting components arranged alternately along the circumference of the annular seat.

16. The wind turbine assembly according to claim 8, characterized in that, The elastic damping body includes a first elastic damping layer, a mesh damping layer, and a first constraint layer connected sequentially from the inside to the outside along the radial direction of the annular seat. The first constraint layer is connected to the inner wall of the annular seat and is used to constrain and fix the first elastic damping layer and the mesh damping layer.

17. The wind turbine assembly according to any one of claims 1 to 7, characterized in that, The noise reduction unit includes: An elastic damping body is installed on the side of the peripheral wall near the receiving cavity; A sound-absorbing layer is installed on the side of the peripheral wall away from the receiving cavity.

18. The wind turbine assembly according to claim 17, characterized in that, The elastic damping body includes two second elastic damping layers and a second constraint layer disposed between the two second elastic damping layers. The two second elastic damping layers are respectively connected to opposite sides of the second constraint layer along its thickness direction.

19. The wind turbine assembly according to claim 17, characterized in that, The elastic damping body has multiple blind holes on the side near the receiving cavity.

20. A vehicle, characterized in that, include: Vehicle body; The wind turbine assembly as described in any one of claims 1 to 19 is mounted on the vehicle body.

Images