Speaker assemblies, wheels and vehicles

Abstract

The present invention discloses a speaker assembly, a wheel hub and a vehicle, and relates to the field of vehicles. The speaker assembly comprises: a sound module and a wheel center cover, wherein the sound module is arranged on the wheel center cover, and the wheel center cover is suitable for connecting with the hub body of the wheel hub. Thus, by installing the speaker assembly on the wheel hub, the prompt sound emitted by the sound module can be prevented from being transmitted to the passenger compartment, which is conducive to eliminating the noise in the passenger compartment and improving the comfort of the user. Moreover, the speaker assembly can be directly applied to different vehicle models without adaptive adjustment, which is conducive to improving the versatility of the speaker assembly.

Description

Technical Field

[0001] The present invention relates to the field of vehicles, and in particular to a speaker assembly, a wheel hub and a vehicle. Background Art

[0002] Because new energy vehicles are very quiet when driving, especially at low speeds. In related technologies, in order to ensure driving safety, new energy vehicles are usually equipped with low-speed alarms, which are arranged in the front cabin of the car. The sound is easily transmitted into the passenger compartment due to rebound, which in turn increases the noise in the passenger compartment. In addition, due to the non-uniform shape of the car, the position of the low-speed alarm needs to be adjusted according to the model to meet the design requirements of volume and pronunciation position, and the design process is cumbersome. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a speaker assembly that can prevent the prompt sound from being transmitted into the passenger compartment, thereby improving the comfort of the user, and the speaker assembly can be applied to different vehicle models and has good versatility.

[0004] The speaker assembly according to the embodiment of the present invention comprises: the speaker assembly comprises a sound module and a wheel center cover, the sound module is arranged on the wheel center cover, and the wheel center cover is suitable for connecting with a hub body of a wheel hub.

[0005] According to the speaker assembly of the embodiment of the present invention, by installing the speaker assembly on the wheel hub, it is possible to prevent the prompt sound emitted by the sound module from being transmitted to the passenger compartment, which is beneficial to eliminating the noise in the passenger compartment and improving the user's comfort. In addition, the speaker assembly can be directly applied to different vehicle models without the need for adaptive adjustments, which is beneficial to improving the versatility of the speaker assembly.

[0006] According to some embodiments of the present invention, the speaker assembly further includes a shell, which is disposed on the wheel center cover to define a containing cavity, and the sound module is disposed in the containing cavity.

[0007] According to the speaker assembly of some embodiments of the present invention, the wheel center cover is provided with a sound-transmitting hole communicating with the accommodating cavity.

[0008] According to the speaker assembly of some embodiments of the present invention, the wheel center cover is provided with a matching protrusion extending along the circumferential direction, and the shell and the matching protrusion are sleeved and fixedly matched.

[0009] In the speaker assembly according to some embodiments of the present invention, the wheel center cover is provided with a plurality of claws arranged around the shell, and the claws are suitable for being fixed to the wheel hub body.

[0010] According to some embodiments of the speaker assembly of the present invention, the sound module includes: a guide frame, which is arranged on the wheel center cover and has a guide channel inside the guide frame; at least one impact member, which is arranged on the wheel center cover; and a movable member, which is movably arranged in the guide channel to impact the impact member to produce sound.

[0011] According to some embodiments of the speaker assembly of the present invention, there are multiple impact members including a first impact member and a second impact member, the first impact member is provided at one end of the guide channel in the length direction, and the second impact member is provided at the other end of the guide channel in the length direction.

[0012] According to some embodiments of the speaker assembly of the present invention, the first impact member and the second impact member are configured to emit sounds of different frequencies when impacted by the moving member.

[0013] In the speaker assembly according to some embodiments of the present invention, the moving member is a ball.

[0014] In the speaker assembly according to some embodiments of the present invention, the cross-section of the guide channel is circular, and the gap between the guide channel and the ball is in the range of 0.1 mm-0.2 mm.

[0015] According to the speaker assembly of some embodiments of the present invention, the guide frame is provided with a plurality of the guide channels, the plurality of the guide channels are arranged at intervals along the circumferential direction, each of the guide channels is correspondingly provided with at least one of the impact members, and each of the guide channels is provided with the moving member.

[0016] According to the speaker assembly of some embodiments of the present invention, the guide frame includes: an annular fixing frame, the fixing frame is arranged on the wheel center cover; a plurality of guide tubes, the plurality of guide tubes are respectively passed through the fixing frame, and the guide tubes define the guide channel.

[0017] The invention also provides a wheel hub.

[0018] The wheel hub according to the embodiment of the present invention comprises: a wheel hub body; and a speaker assembly, wherein the speaker assembly is the speaker assembly described in any one of the above embodiments, and the speaker assembly is disposed on the wheel hub body.

[0019] The wheel hub according to the embodiment of the present invention integrates the sound module on the wheel hub body so that the wheel hub can also have a sound function, so that the wheel hub can be used to emit a warning sound when the vehicle is traveling at a low speed, thereby improving the practicality of the wheel hub.

[0020] The present invention further provides a wheel hub.

[0021] The wheel hub according to the embodiment of the present invention comprises a wheel hub body and a sound generating module, wherein the sound generating module is arranged on the wheel hub body.

[0022] The wheel hub according to the embodiment of the present invention integrates the sound module on the wheel hub body so that the wheel hub can also have a sound function, so that the wheel hub can be used to emit a warning sound when the vehicle is traveling at a low speed, thereby improving the practicality of the wheel hub.

[0023] According to some embodiments of the wheel hub of the present invention, the sound generating module is directly mounted on the wheel hub body; or, the wheel hub further comprises a wheel center cover, the wheel center cover is mounted on the wheel hub body, and the sound generating module is arranged on the wheel center cover.

[0024] The wheel hub according to some embodiments of the present invention further includes a shell, wherein the shell is disposed on the wheel center cover to define a receiving cavity, and the sound generating module is disposed in the receiving cavity.

[0025] In the wheel hub according to some embodiments of the present invention, the wheel center cover is provided with a sound-transmitting hole communicating with the accommodating cavity.

[0026] According to some embodiments of the wheel hub of the present invention, the wheel center cover is provided with a matching protrusion extending in the circumferential direction, and the shell and the matching protrusion are sleeved and fixedly matched.

[0027] In the wheel hub according to some embodiments of the present invention, the wheel center cover is provided with a plurality of claws arranged around the shell, and the claws are suitable for being fixed to the wheel hub body.

[0028] In the wheel hub according to some embodiments of the present invention, the sound-generating module includes: a guide frame, which is arranged on the wheel hub body or the wheel center cover, and a guide channel is provided in the guide frame; at least one impact member, which is arranged on the wheel hub body or the wheel center cover; and a movable member, which is movably arranged in the guide channel to impact the impact member to produce a sound.

[0029] According to some embodiments of the wheel hub of the present invention, there are multiple impact members including a first impact member and a second impact member, the first impact member is provided at one end of the guide channel in the length direction, and the second impact member is provided at the other end of the guide channel in the length direction.

[0030] In the wheel hub according to some embodiments of the present invention, the first impact member and the second impact member are configured to emit sounds of different frequencies when struck by the moving member.

[0031] In the wheel hub according to some embodiments of the present invention, the moving member is a ball.

[0032] According to some embodiments of the wheel hub of the present invention, the cross-section of the guide channel is circular, and the gap between the guide channel and the ball is in the range of 0.1 mm-0.2 mm.

[0033] According to the wheel hub of some embodiments of the present invention, the guide frame is provided with a plurality of the guide channels, the plurality of the guide channels are arranged at intervals along the circumferential direction, each of the guide channels is correspondingly provided with at least one of the impact members, and each of the guide channels is provided with the moving member.

[0034] According to some embodiments of the wheel hub of the present invention, the guide frame includes: an annular fixing frame, the fixing frame is arranged on the wheel hub body or the wheel center cover; a plurality of guide tubes, the plurality of guide tubes are respectively passed through the fixing frame, and the guide tubes define the guide channel.

[0035] The present invention further provides a vehicle.

[0036] A vehicle according to an embodiment of the present invention comprises the wheel hub according to any one of the above embodiments.

[0037] According to the vehicle of the embodiment of the present invention, the noise in the passenger compartment is low, the user's driving experience is good, and it is helpful to improve the user's satisfaction.

[0038] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0040] Figure 1 is a schematic diagram of a wheel hub according to an embodiment of the present invention;

[0041] Figure 2 is a cross-sectional view of a wheel hub according to an embodiment of the present invention;

[0042] Figure 3 is a schematic diagram of a speaker assembly according to an embodiment of the present invention;

[0043] Figure 4 is an exploded view of a loudspeaker assembly according to an embodiment of the present invention;

[0044] Figure 5 is a cross-sectional view of a speaker assembly according to an embodiment of the present invention;

[0045] Figure 6 Schematic diagram of the installation of the sound module according to an embodiment of the present invention.

[0046] Reference numerals:

[0047] Wheel 1000,

[0048] Speaker assembly 100, hub body 200,

[0049] Wheel center cover 1, sound transmission hole 11, first sound transmission hole 111, second sound transmission hole 112, matching protrusion 12, sub-protrusion 121, mounting groove 122, claw 13, support ring 14,

[0050] The sound module 2, the guide frame 21, the fixing frame 211, the guide tube 212, the guide channel 213, the impact member 22, the first impact member 221, the second impact member 222, the ball 23,

[0051] The housing 3 contains a cavity 31 . DETAILED DESCRIPTION

[0052] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] Hereinafter, a speaker assembly 100 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0056] like Figure 1-Figure 6 As shown, the speaker assembly 100 according to the embodiment of the present invention includes: a sound module 2 and a wheel center cover 1 , the sound module 2 is arranged on the wheel center cover 1 , and the wheel center cover 1 is suitable for connecting with the hub body 200 of the wheel hub 1000 .

[0057] In this way, the prompt sound emitted by the sound module 2 can be prevented from being transmitted to the passenger compartment, thereby improving the user's comfort. In addition, the speaker assembly 100 can be directly applied to different vehicle models, thereby improving the versatility of the speaker assembly 100.

[0058] First, if Figure 1-Figure 4 As shown, the speaker assembly 100 includes a wheel center cover 1 and a sound module 2. The wheel center cover 1 is arranged on the wheel hub body 200 of the wheel hub 1000. The sound module 2 is arranged on the wheel center cover 1 to be mounted on the wheel hub body 200, and the sound module 2 is used to emit a warning sound when the vehicle is running at a low speed. Specifically, the wheel center cover 1 can be snapped or screwed on the wheel hub body 200, or the wheel center cover 1 can be fixed on the wheel hub body 200 by fasteners.

[0059] It should be noted that the sound module 2 can be constructed as a purely mechanical structure. When the hub body 200 rotates at a low speed, the hub body 200 can drive the sound module 2 to rotate synchronously, so that the components in the sound module 2 vibrate, thereby emitting a low-speed driving warning sound. Of course, the sound module 2 can also be constructed as an electric drive structure, and the power supply of the sound module 2 can be an independent power supply installed on the wheel center cover 1 or a vehicle power supply.

[0060] It is understandable that by installing the sound module 2 on the wheel hub 1000, the prompt sound can be transmitted from the wheel to the outside, avoiding the prompt sound from entering the passenger compartment, which is conducive to eliminating the noise in the passenger compartment and improving the comfort of the user. In addition, the speaker assembly 100 can be directly installed on the wheel hub 1000 of different models without adaptive adjustment, which is conducive to reducing costs and improving the versatility of the speaker assembly 100.

[0061] According to the speaker assembly 100 of the embodiment of the present invention, by installing the speaker assembly 100 on the wheel hub body 200, it is possible to prevent the prompt sound emitted by the sound module 2 from being transmitted to the passenger compartment, thereby helping to eliminate the noise in the passenger compartment and improving the user's comfort. In addition, the speaker assembly 100 can be directly applied to different vehicle models without the need for adaptive adjustments, thereby helping to improve the versatility of the speaker assembly 100.

[0062] In some embodiments of the present invention, the speaker assembly 100 of the embodiment of the present invention further includes a shell 3, which is arranged on the wheel center cover 1 to define a accommodating cavity 31, the sound module 2 is arranged in the accommodating cavity 31, and the wheel center cover 1 is provided with a sound hole 11 connected to the accommodating cavity 31.

[0063] For example, refer to Figure 3-Figure 4 As shown, the speaker assembly 100 further includes a housing 3, the housing 3 is formed with an open accommodation space, the wheel center cover 1 is connected to one side of the housing 3 to close the accommodation space, so that the housing 3 and the wheel center cover 1 can define an accommodation cavity 31 at the accommodation space, and the sound module 2 can be installed in the accommodation cavity 31. Among them, a sound hole 11 penetrating along the thickness direction can be provided on the wheel center cover 1, and the sound hole 11 is connected with the accommodation cavity 31. When the sound module 2 emits a prompt sound in the accommodation cavity 31, the prompt sound can be amplified in the accommodation cavity 31 and then propagated outward from the sound hole 11.

[0064] It should be noted that the wheel center cover 1 and the shell 3 can be connected by ultrasonic welding to improve the connection stability between the wheel center cover 1 and the shell 3, and to a certain extent eliminate the fitting gap between the wheel center cover 1 and the shell 3 to avoid sound leakage.

[0065] Through the above arrangement, the wheel center cover 1 and the housing 3 can protect the sound module 2 to reduce the interference to the sound module 2, improve the working stability of the sound module 2, and the accommodating cavity 31 resonates with the prompt sound to increase the volume of the prompt sound, thereby enhancing the sound effect of the sound module 2. In addition, by providing the sound-transmitting hole 11, the propagation direction of the prompt sound can be effectively limited, so that the prompt sound can better remind pedestrians.

[0066] In some embodiments of the present invention, Figure 3 As shown, the sound transmission holes 11 can be arranged in multiple groups, each group having multiple sound transmission holes 11, multiple groups of sound transmission holes 11 are distributed at intervals along the radial direction of the wheel center cover 1, and multiple sound transmission holes 11 in the same group are distributed at intervals along the circumferential direction of the wheel center cover 1. In this way, the prompt sound can be made more uniform.

[0067] In some embodiments of the present invention, Figure 3-Figure 5 As shown, a mating protrusion 12 may be provided on the side of the wheel center cover 1 facing the shell 3. The mating protrusion 12 extends along the circumference of the wheel center cover 1. The shell 3 is used to extend to the inner side of the mating protrusion 12 so that the shell 3 and the mating protrusion 12 can be sleeved and fixedly fitted.

[0068] Through the above arrangement, the matching stability between the housing 3 and the wheel center cover 1 can be improved, and the structural stability of the speaker assembly 100 is improved.

[0069] In some embodiments of the present invention, Figure 3-Figure 5As shown, the mating protrusion 12 includes a plurality of sub-protrusions 121, which are spaced apart and distributed along the circumference of the wheel center cover 1, and the plurality of sub-protrusions 121 are used to respectively engage with the housing 3. Of course, the mating protrusion 12 can also be constructed as a continuous ring, which is not limited in the present invention. Thus, the difficulty of molding the mating protrusion 12 can be reduced, and the practicality of the wheel center cover 1 is improved.

[0070] In some embodiments of the present invention, the wheel center cover 1 is provided with a plurality of claws 13 arranged around the shell 3 , and the claws 13 are suitable for being fixed to the hub body 200 .

[0071] For example, refer to Figure 3-Figure 5 As shown, a mating protrusion 12 may be provided on the side of the wheel center cover 1 facing the housing 3, and the mating protrusion 12 includes a plurality of sub-protrusions 121, and the plurality of sub-protrusions 121 are arranged at intervals around the housing 3. A claw 13 protruding outward is provided on the outer side of each sub-protrusion 121, and the plurality of claws 13 are suitable for being fixed to the wheel hub body 200 respectively, so as to detachably mount the speaker assembly 100 on the wheel hub body 200. Thus, the difficulty of installing the speaker assembly 100 can be reduced, and the practicality of the wheel center cover 1 is improved. Moreover, the claw 13 has good versatility and can be adapted to different vehicle models, and there is no need to develop an additional fixing bracket, which is conducive to reducing costs.

[0072] Furthermore, if Figure 4-Figure 5 As shown, an annular mounting groove 122 may be provided on the inner side of the sub-protrusion 121, and a support ring 14 may be installed in the mounting groove 122. The support ring 14 is used to support the mating protrusion 12 to improve the anti-deformation ability of the mating protrusion 12, so that the claw 13 can be more stably connected to the hub body 200. In this way, the installation stability of the speaker assembly 100 can be improved.

[0073] In some embodiments of the present invention, the sound module 2 includes: a guide frame 21, at least one impact member 22 and a moving member, the guide frame 21 is arranged on the wheel center cover 1, and a guide channel 213 is arranged in the guide frame 21; the impact member 22 is arranged on the wheel center cover 1; the moving member is movably arranged in the guide channel 213 to impact the impact member 22 to make a sound.

[0074] For example, refer to Figure 4-Figure 5As shown, the sound module 2 includes a guide frame 21 and a striker 22. The guide frame 21 is connected to the side of the wheel center cover 1 facing the housing 3, such as by gluing or ultrasonic welding. A guide channel 213 is provided in the guide frame 21. The guide channel 213 deviates from the rotation center of the hub body 200 and extends in the radial direction of the hub body 200 in the length direction. At least one end of the guide channel 213 along the length direction is formed as an escape opening. There is at least one striker 22, which is plate-shaped. The striker 22 is connected to the side of the wheel center cover 1 where the guide frame 21 is provided, such as by welding to the wheel center cover 1. The striker 22 is located in the guide channel 213 opposite to the escape opening.

[0075] The sound module 2 further includes a moving part, which is movably arranged in the guide channel 213. When the vehicle is traveling at a low speed, the centrifugal force is smaller than the gravity, and as the guide channel 213 rotates around the rotation center, the moving part will reciprocate along the guide channel 213 to intermittently hit the impact part 22 through the avoidance opening, so that the impact part 22 can emit a prompt sound, and when the vehicle is traveling at a high speed, the centrifugal force is greater than the gravity, the moving part will remain outside the guide channel 213, and the moving part and the impact part 22 remain relatively motionless, so that the impact part 22 remains silent.

[0076] It should be noted that the outer side of the guide channel 213 refers to the outer side of the guide channel 213 along the radial direction of the hub body 200, and the inner side of the guide channel 213 refers to the inner side of the guide channel 213 along the radial direction of the hub body 200, which will not be elaborated later.

[0077] Through the above arrangement, the sound module 2 can be formed into a purely mechanical structure without the need for a power supply, which helps to reduce the structural complexity and processing cost of the sound module 2.

[0078] In some embodiments of the present invention, the impact member 22 is multiple and includes a first impact member 221 and a second impact member 222. The first impact member 221 is provided at one end of the guide channel 213 in the length direction, and the second impact member 222 is provided at the other end of the guide channel 213 in the length direction.

[0079] For example, refer to Figure 4-Figure 6 As shown, the two ends of the guide channel 213 along the length direction are respectively formed as avoidance openings, and the impact members 22 are provided in plurality, and the plurality of impact members 22 include a first impact member 221 and a second impact member 222. The first impact member 221 is provided at one end of the guide channel 213 along the length direction, and the second impact member 222 is provided at the other end of the guide channel 213 in the length direction, so that the first impact member 221 and the second impact member 222 are arranged on the inner and outer sides of the guide channel 213.

[0080] For example, the first impact member 221 may be located at the inner side of the guide channel 213 , and the second impact member 222 may be located at the outer side of the guide channel 213 .

[0081] During the low-speed driving of the vehicle, when the guide channel 213 rotates to above the rotation center, the centrifugal force is less than the gravity. Under the action of gravity, the moving part can strike the first impact part 221 downward to form a prompt sound, and when the guide channel 213 rotates to below the rotation center, under the dual action of centrifugal force and gravity, the moving part can strike the second impact part 222 downward to form a prompt sound; as the wheel hub 1000 rotates, the moving part can move repeatedly in the guide channel 213 to strike the first impact part 221 and the second impact part 222 in turn, so that the sound module 2 can continue to emit a prompt sound.

[0082] When the vehicle is traveling at high speed, the centrifugal force on the moving part is much greater than the gravity, and the moving part can move outward to fit onto the second impact part 222 to stop making sound.

[0083] Through the above configuration, the sound module 2 can continuously emit a prompt sound when the vehicle is traveling at a low speed, and can remain silent when the vehicle is traveling at a high speed, thereby meeting the design requirements and improving the practicality of the speaker assembly 100.

[0084] In some embodiments of the present invention, the first impact member 221 and the second impact member 222 are configured to emit sounds of different frequencies when impacted by the moving member. For example, the thickness of the first impact member 221 can be set to be thinner so that the first impact member 221 can emit high-frequency sounds when impacted, and the thickness of the second impact member 222 can be set to be thicker so that the second impact member 222 can emit low-frequency sounds when impacted; or, the thickness of the second impact member 222 can be set to be thinner so that the second impact member 222 can emit high-frequency sounds when impacted, and the thickness of the first impact member 221 can be set to be thicker so that the first impact member 221 can emit low-frequency sounds when impacted.

[0085] It should be noted that the range of the high-frequency sound is 770 Hz-3000 Hz, and the range of the low-frequency sound is 160 Hz-770 Hz.

[0086] Through the above arrangement, the sound module 2 can emit both high-frequency sound and low-frequency sound, thereby ensuring the propagation effect of the prompt sound and improving the practicality of the speaker assembly 100.

[0087] In some embodiments of the present invention, the thickness of the thinner one of the first impact member 221 and the second impact member 222 can be set to a range of 0.6 mm-2 mm, such as 0.6 mm, 0.8 mm, 1 mm, 1.2 mm, 1.5 mm, 1.8 mm, 2 mm, etc., and the thickness of the other one of the first impact member 221 and the second impact member 222 can be set to a range of 2 mm-3 mm, such as 2 mm, 2.2 mm, 2.4 mm, 2.5 mm, 2.8 mm, 3 mm, etc. In this way, the sound effect of the sound module 2 can be guaranteed.

[0088] In some embodiments of the present invention, Figure 4 As shown, the moving part can be set as a ball 23. Through the above arrangement, the friction between the moving part and the guide channel 213 can be reduced, and the moving part can be prevented from getting stuck, thereby improving the movement stability of the moving part and ensuring the reliability of the sound module 2.

[0089] In some embodiments of the present invention, the cross-section of the guide channel 213 is circular, and the gap between the guide channel 213 and the ball 23 ranges from 0.1 mm to 0.2 mm; wherein the gap here refers to: when one side of the ball 23 is in contact with the inner wall of the guide channel 213, the gap between the opposite side of the ball 23 and the inner wall of the guide channel 213.

[0090] Specifically, the gap between the guide channel 213 and the ball 23 can be set to 0.1 mm; or the gap between the guide channel 213 and the ball 23 can be set to 0.15 mm; or the gap between the guide channel 213 and the ball 23 can be set to 0.2 mm, and the present invention is not limited thereto. In this way, the movement stability of the ball 23 can be improved, which is conducive to improving the reliability of the sound module 2.

[0091] In some embodiments of the present invention, the guide frame 21 is provided with a plurality of guide channels 213, and the plurality of guide channels 213 are arranged at intervals along the circumference of the hub body 200. Each guide channel 213 is correspondingly provided with at least one impact member 22, and a moving member is respectively provided in each guide channel 213. When the vehicle is traveling at a low speed, the moving member can reciprocate along the guide channel 213 to continuously impact the corresponding impact member 22, thereby issuing a prompt sound.

[0092] It can be understood that by providing a plurality of guide channels 213 , the sound volume of the sound module 2 can be increased, and the sound interval of the sound module 2 can be reduced or eliminated, thereby improving the sound effect of the sound module 2 .

[0093] In some embodiments of the present invention, Figure 4-Figure 6As shown, the guide frame 21 includes a fixing frame 211 and a guide tube 212. The fixing frame 211 is configured in an annular shape, such as a circular ring shape, and is disposed on one side of the wheel center cover 1. A plurality of guide tubes 212 are provided, and the plurality of guide tubes 212 are arranged at intervals along the circumference of the fixing frame 211 and are respectively penetrated through the fixing frame 211. The length direction of the guide tube 212 extends along the radial direction of the fixing frame 211, and a guide channel 213 is defined in the guide tube 212.

[0094] For example, Figure 6 As shown, the number of guide tubes 212 may be four, and the four guide tubes 212 are evenly spaced apart and arranged along the circumference of the fixing frame 211 .

[0095] Through the above arrangement, the difficulty of forming the guide channel 213 can be reduced, the difficulty of processing the guide frame 21 as a whole can be reduced, and the practicality of the speaker assembly 100 can be improved.

[0096] In some embodiments of the present invention, Figure 4 As shown, the first impact member 221 can be arranged on the radial inner side of the fixing frame 211, and the second impact member 222 can be arranged on the radial outer side of the fixing frame 211. At the same time, the sound transmission hole 11 includes a first sound transmission hole 111 and a second sound transmission hole 112. The first sound transmission hole 111 is located on the radial inner side of the fixing frame 211 and opposite to the first impact member 221, and the second sound transmission hole 112 is located on the radial outer side of the fixing frame 211 and opposite to the second impact member 222. Through the above arrangement, the prompt sound can be better transmitted outward, which improves the design rationality of the wheel center cover 1.

[0097] The present invention also provides a wheel hub 1000 .

[0098] like Figure 1 As shown, the wheel hub 1000 according to the embodiment of the present invention comprises: a wheel hub body 200 and a speaker assembly 100 , wherein the speaker assembly 100 is the speaker assembly 100 according to any of the above embodiments, and the speaker assembly 100 is disposed on the wheel hub body 200 .

[0099] According to the wheel hub 1000 of the embodiment of the present invention, the sound module 2 is integrated into the wheel hub body 200, so that the wheel hub 1000 can also have a sound function, so that the wheel hub 1000 can be used to emit a warning sound when the vehicle is traveling at a low speed, thereby improving the practicality of the wheel hub 1000.

[0100] The present invention further provides a wheel hub 1000 .

[0101] like Figure 1 As shown, the wheel hub 1000 according to the embodiment of the present invention includes: a wheel hub body 200 and a sound module 2 , and the sound module 2 is arranged in the wheel hub body 200 .

[0102] According to the wheel hub 1000 of the embodiment of the present invention, the sound module 2 is integrated into the wheel hub body 200, so that the wheel hub 1000 can also have a sound function, so that the wheel hub 1000 can be used to emit a warning sound when the vehicle is traveling at a low speed, thereby improving the practicality of the wheel hub 1000.

[0103] In some embodiments of the present invention, the sound module 2 is directly mounted on the hub body 200. Therefore, there is no need to set an adapter, which reduces the number of parts of the hub 1000, helps reduce inventory pressure, and improves the competitiveness of the hub 1000.

[0104] In other embodiments of the present invention, Figure 2-Figure 4 As shown, the wheel hub 1000 further includes a wheel center cover 1, which is mounted on the wheel hub body 200, and the sound module 2 is disposed on the wheel center cover 1. Thus, the sound module 2 can be indirectly mounted on the wheel hub body 200 through the wheel center cover 1, which helps to reduce the installation difficulty of the sound module 2 and improve the installation stability of the sound module 2.

[0105] In some embodiments of the present invention, the speaker assembly 100 of the embodiment of the present invention further includes a shell 3, which is arranged on the wheel center cover 1 to define a accommodating cavity 31, the sound module 2 is arranged in the accommodating cavity 31, and the wheel center cover 1 is provided with a sound hole 11 connected to the accommodating cavity 31.

[0106] For example, refer to Figure 3-Figure 4 As shown, the speaker assembly 100 further includes a housing 3, the housing 3 is formed with an open accommodation space, the wheel center cover 1 is connected to one side of the housing 3 to close the accommodation space, so that the housing 3 and the wheel center cover 1 can define an accommodation cavity 31 at the accommodation space, and the sound module 2 can be installed in the accommodation cavity 31. Among them, a sound hole 11 penetrating along the thickness direction can be provided on the wheel center cover 1, and the sound hole 11 is connected with the accommodation cavity 31. When the sound module 2 emits a prompt sound in the accommodation cavity 31, the prompt sound can be amplified in the accommodation cavity 31 and then propagated outward from the sound hole 11.

[0107] It should be noted that the wheel center cover 1 and the shell 3 can be connected by ultrasonic welding to improve the connection stability between the wheel center cover 1 and the shell 3, and to a certain extent eliminate the fitting gap between the wheel center cover 1 and the shell 3 to avoid sound leakage.

[0108] Through the above arrangement, the wheel center cover 1 and the housing 3 can protect the sound module 2 to reduce the interference to the sound module 2, improve the working stability of the sound module 2, and the accommodating cavity 31 resonates with the prompt sound to increase the volume of the prompt sound, thereby enhancing the sound effect of the sound module 2. In addition, by providing the sound-transmitting hole 11, the propagation direction of the prompt sound can be effectively limited, so that the prompt sound can better remind pedestrians.

[0109] In some embodiments of the present invention, Figure 3 As shown, the sound transmission holes 11 can be arranged in multiple groups, each group having multiple sound transmission holes 11, multiple groups of sound transmission holes 11 are distributed at intervals along the radial direction of the wheel center cover 1, and multiple sound transmission holes 11 in the same group are distributed at intervals along the circumferential direction of the wheel center cover 1. In this way, the prompt sound can be made more uniform.

[0110] In some embodiments of the present invention, Figure 3-Figure 5 As shown, a mating protrusion 12 may be provided on the side of the wheel center cover 1 facing the shell 3. The mating protrusion 12 extends along the circumference of the wheel center cover 1. The shell 3 is used to extend to the inner side of the mating protrusion 12 so that the shell 3 and the mating protrusion 12 can be sleeved and fixedly fitted.

[0111] Through the above arrangement, the matching stability between the housing 3 and the wheel center cover 1 can be improved, and the structural stability of the speaker assembly 100 is improved.

[0112] In some embodiments of the present invention, Figure 3-Figure 5 As shown, the mating protrusion 12 includes a plurality of sub-protrusions 121, which are spaced apart and distributed along the circumference of the wheel center cover 1, and the plurality of sub-protrusions 121 are used to respectively engage with the housing 3. Of course, the mating protrusion 12 can also be constructed as a continuous ring, which is not limited in the present invention. Thus, the difficulty of molding the mating protrusion 12 can be reduced, and the practicality of the wheel center cover 1 is improved.

[0113] In some embodiments of the present invention, the wheel center cover 1 is provided with a plurality of claws 13 arranged around the shell 3 , and the claws 13 are suitable for being fixed to the hub body 200 .

[0114] For example, refer to Figure 3-Figure 5 As shown, a mating protrusion 12 may be provided on the side of the wheel center cover 1 facing the housing 3, and the mating protrusion 12 includes a plurality of sub-protrusions 121, and the plurality of sub-protrusions 121 are arranged at intervals around the housing 3. A claw 13 protruding outward is provided on the outer side of each sub-protrusion 121, and the plurality of claws 13 are suitable for being fixed to the wheel hub body 200 respectively, so as to detachably mount the speaker assembly 100 on the wheel hub body 200. Thus, the difficulty of installing the speaker assembly 100 can be reduced, and the practicality of the wheel center cover 1 is improved. Moreover, the claw 13 has good versatility and can be adapted to different vehicle models, and there is no need to develop an additional fixing bracket, which is conducive to reducing costs.

[0115] Furthermore, if Figure 4-Figure 5As shown, an annular mounting groove 122 may be provided on the inner side of the sub-protrusion 121, and a support ring 14 may be installed in the mounting groove 122. The support ring 14 is used to support the mating protrusion 12 to improve the anti-deformation ability of the mating protrusion 12, so that the claw 13 can be more stably connected to the hub body 200. In this way, the installation stability of the speaker assembly 100 can be improved.

[0116] In some embodiments of the present invention, the sound module 2 includes: a guide frame 21, at least one impact member 22 and a moving member, the guide frame 21 is arranged on the hub body 200 or the wheel center cover 1, and a guide channel 213 is arranged in the guide frame 21; the impact member 22 is arranged on the hub body 200 or the wheel center cover 1; the moving member is movably arranged in the guide channel 213 to impact the impact member 22 to make a sound.

[0117] For example, refer to Figure 4-Figure 5 As shown, the sound module 2 includes a guide frame 21 and a striker 22. The guide frame 21 is connected to the side of the wheel center cover 1 facing the housing 3, such as by gluing or ultrasonic welding. A guide channel 213 is provided in the guide frame 21. The guide channel 213 deviates from the rotation center of the hub body 200 and extends in the radial direction of the hub body 200 in the length direction. At least one end of the guide channel 213 along the length direction is formed as an escape opening. There is at least one striker 22, which is plate-shaped. The striker 22 is connected to the side of the wheel center cover 1 where the guide frame 21 is provided, such as by welding to the wheel center cover 1. The striker 22 is located in the guide channel 213 opposite to the escape opening.

[0118] The sound module 2 further includes a moving part, which is movably arranged in the guide channel 213. When the vehicle is traveling at a low speed, the centrifugal force is smaller than the gravity, and as the guide channel 213 rotates around the rotation center, the moving part will reciprocate along the guide channel 213 to intermittently hit the impact part 22 through the avoidance opening, so that the impact part 22 can emit a prompt sound, and when the vehicle is traveling at a high speed, the centrifugal force is greater than the gravity, the moving part will remain outside the guide channel 213, and the moving part and the impact part 22 remain relatively motionless, so that the impact part 22 remains silent.

[0119] Of course, the guide frame 21 and the impact member 22 can also be directly connected to the hub body 200. Thus, the sound module 2 can be directly fixed to the hub body 200 without setting an adapter, which reduces the number of parts of the hub 1000, helps reduce inventory pressure, and improves the competitiveness of the hub 1000.

[0120] It should be noted that the outer side of the guide channel 213 refers to the outer side of the guide channel 213 along the radial direction of the hub body 200, and the inner side of the guide channel 213 refers to the inner side of the guide channel 213 along the radial direction of the hub body 200, which will not be elaborated later.

[0121] Through the above arrangement, the sound module 2 can be formed into a purely mechanical structure without the need for a power supply, which helps to reduce the structural complexity and processing cost of the sound module 2.

[0122] In some embodiments of the present invention, the impact member 22 is multiple and includes a first impact member 221 and a second impact member 222. The first impact member 221 is provided at one end of the guide channel 213 in the length direction, and the second impact member 222 is provided at the other end of the guide channel 213 in the length direction.

[0123] For example, refer to Figure 4-Figure 6 As shown, the two ends of the guide channel 213 along the length direction are respectively formed as avoidance openings, and the impact members 22 are provided in plurality, and the plurality of impact members 22 include a first impact member 221 and a second impact member 222. The first impact member 221 is provided at one end of the guide channel 213 along the length direction, and the second impact member 222 is provided at the other end of the guide channel 213 in the length direction, so that the first impact member 221 and the second impact member 222 are arranged on the inner and outer sides of the guide channel 213.

[0124] For example, the first impact member 221 may be located at the inner side of the guide channel 213 , and the second impact member 222 may be located at the outer side of the guide channel 213 .

[0125] During the low-speed driving of the vehicle, when the guide channel 213 rotates to above the rotation center, the centrifugal force is less than the gravity. Under the action of gravity, the moving part can strike the first impact part 221 downward to form a prompt sound, and when the guide channel 213 rotates to below the rotation center, under the dual action of centrifugal force and gravity, the moving part can strike the second impact part 222 downward to form a prompt sound; as the wheel hub 1000 rotates, the moving part can move repeatedly in the guide channel 213 to strike the first impact part 221 and the second impact part 222 in turn, so that the sound module 2 can continue to emit a prompt sound.

[0126] When the vehicle is traveling at high speed, the centrifugal force on the moving part is much greater than the gravity, and the moving part can move outward to fit onto the second impact part 222 to stop making sound.

[0127] Through the above configuration, the sound module 2 can continuously emit a prompt sound when the vehicle is traveling at a low speed, and can remain silent when the vehicle is traveling at a high speed, thereby meeting the design requirements and improving the practicality of the speaker assembly 100.

[0128] In some embodiments of the present invention, the first impact member 221 and the second impact member 222 are configured to emit sounds of different frequencies when impacted by the moving member. For example, the thickness of the first impact member 221 can be set to be thinner so that the first impact member 221 can emit high-frequency sounds when impacted, and the thickness of the second impact member 222 can be set to be thicker so that the second impact member 222 can emit low-frequency sounds when impacted; or, the thickness of the second impact member 222 can be set to be thinner so that the second impact member 222 can emit high-frequency sounds when impacted, and the thickness of the first impact member 221 can be set to be thicker so that the first impact member 221 can emit low-frequency sounds when impacted.

[0129] It should be noted that the range of the high-frequency sound is 770 Hz-3000 Hz, and the range of the low-frequency sound is 160 Hz-770 Hz.

[0130] Through the above arrangement, the sound module 2 can emit both high-frequency sound and low-frequency sound, thereby ensuring the propagation effect of the prompt sound and improving the practicality of the speaker assembly 100.

[0131] In some embodiments of the present invention, the thickness of the thinner one of the first impact member 221 and the second impact member 222 can be set to a range of 0.6 mm-2 mm, such as 0.6 mm, 0.8 mm, 1 mm, 1.2 mm, 1.5 mm, 1.8 mm, 2 mm, etc., and the thickness of the other one of the first impact member 221 and the second impact member 222 can be set to a range of 2 mm-3 mm, such as 2 mm, 2.2 mm, 2.4 mm, 2.5 mm, 2.8 mm, 3 mm, etc. In this way, the sound effect of the sound module 2 can be guaranteed.

[0132] In some embodiments of the present invention, Figure 4 As shown, the moving part can be set as a ball 23. Through the above arrangement, the friction between the moving part and the guide channel 213 can be reduced, and the moving part can be prevented from getting stuck, thereby improving the movement stability of the moving part and ensuring the reliability of the sound module 2.

[0133] In some embodiments of the present invention, the cross-section of the guide channel 213 is circular, and the gap between the guide channel 213 and the ball 23 ranges from 0.1 mm to 0.2 mm; wherein the gap here refers to: when one side of the ball 23 is in contact with the inner wall of the guide channel 213, the gap between the opposite side of the ball 23 and the inner wall of the guide channel 213.

[0134] Specifically, the gap between the guide channel 213 and the ball 23 can be set to 0.1 mm; or the gap between the guide channel 213 and the ball 23 can be set to 0.15 mm; or the gap between the guide channel 213 and the ball 23 can be set to 0.2 mm, and the present invention is not limited thereto. In this way, the movement stability of the ball 23 can be improved, which is conducive to improving the reliability of the sound module 2.

[0135] In some embodiments of the present invention, the guide frame 21 is provided with a plurality of guide channels 213, and the plurality of guide channels 213 are arranged at intervals along the circumference of the hub body 200. Each guide channel 213 is correspondingly provided with at least one impact member 22, and a moving member is respectively provided in each guide channel 213. When the vehicle is traveling at a low speed, the moving member can reciprocate along the guide channel 213 to continuously impact the corresponding impact member 22, thereby issuing a prompt sound.

[0136] It can be understood that by providing a plurality of guide channels 213 , the sound volume of the sound module 2 can be increased, and the sound interval of the sound module 2 can be reduced or eliminated, thereby improving the sound effect of the sound module 2 .

[0137] In some embodiments of the present invention, Figure 4-Figure 6 As shown, the guide frame 21 includes a fixing frame 211 and a guide tube 212. The fixing frame 211 is configured in an annular shape, such as a circular ring, and is disposed on the hub body 200 or the wheel center cover 1. A plurality of guide tubes 212 are provided, and the plurality of guide tubes 212 are arranged at intervals along the circumference of the fixing frame 211 and are respectively penetrated through the fixing frame 211. The length direction of the guide tube 212 extends along the radial direction of the fixing frame 211, and a guide channel 213 is defined in the guide tube 212.

[0138] For example, Figure 6 As shown, the number of guide tubes 212 may be four, and the four guide tubes 212 are evenly spaced apart and arranged along the circumference of the fixing frame 211 .

[0139] Through the above arrangement, the difficulty of forming the guide channel 213 can be reduced, the difficulty of processing the guide frame 21 as a whole can be reduced, and the practicality of the speaker assembly 100 can be improved.

[0140] In some embodiments of the present invention, Figure 4As shown, the first impact member 221 can be arranged on the radial inner side of the fixing frame 211, and the second impact member 222 can be arranged on the radial outer side of the fixing frame 211. At the same time, the sound transmission hole 11 includes a first sound transmission hole 111 and a second sound transmission hole 112. The first sound transmission hole 111 is located on the radial inner side of the fixing frame 211 and opposite to the first impact member 221, and the second sound transmission hole 112 is located on the radial outer side of the fixing frame 211 and opposite to the second impact member 222. Through the above arrangement, the prompt sound can be better transmitted outward, which improves the design rationality of the wheel center cover 1.

[0141] The present invention further provides a vehicle.

[0142] A vehicle according to an embodiment of the present invention includes the wheel hub 1000 according to any one of the above embodiments.

[0143] According to the vehicle of the embodiment of the present invention, the noise in the passenger compartment is low, the user's driving experience is good, and it is helpful to improve the user's satisfaction.

[0144] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0145] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A speaker assembly, characterized in that: The speaker assembly (100) comprises a sound-generating module (2) and a wheel center cover (1), wherein the sound-generating module (2) is arranged on the wheel center cover (1), and the wheel center cover (1) is suitable for being connected to a wheel hub body (200); The sound generating module (2) comprises: A guide frame (21), the guide frame (21) being arranged on the wheel center cover (1), and a guide channel (213) being arranged in the guide frame (21); at least one impact member (22), the impact member (22) being arranged on the wheel center cover (1); A moving member, the moving member being movably disposed in the guide channel (213) to strike the striking member (22) to produce a sound; The impact members (22) are multiple and include a first impact member (221) and a second impact member (222); one end of the guide channel (213) in the length direction is provided with the first impact member (221), and the other end of the guide channel (213) in the length direction is provided with the second impact member (222); The first impact member (221) and the second impact member (222) are configured to emit sounds of different frequencies when impacted by the moving member; The guide frame (21) is provided with a plurality of guide channels (213), the plurality of guide channels (213) are arranged at intervals along the circumferential direction, each guide channel (213) is correspondingly provided with at least one impact member (22), and each guide channel (213) is provided with the moving member.

2. The loudspeaker assembly according to claim 1, characterized in that It also comprises a shell (3), the shell (3) being arranged on the wheel center cover (1) to define a containing cavity (31), and the sound generating module (2) being arranged in the containing cavity (31).

3. The loudspeaker assembly according to claim 2, characterized in that The wheel center cover (1) is provided with a sound-transmitting hole (11) communicating with the accommodating cavity (31).

4. The loudspeaker assembly according to claim 2, characterized in that The wheel center cover (1) is provided with a matching protrusion (12) extending in the circumferential direction, and the housing (3) and the matching protrusion (12) are sleeved and fixedly matched.

5. The loudspeaker assembly according to claim 2, characterized in that The wheel center cover (1) is provided with a plurality of claws (13) arranged around the shell (3), and the claws (13) are suitable for being fixed to the wheel hub body (200).

6. The loudspeaker assembly according to claim 1, characterized in that The moving part is a ball (23).

7. The loudspeaker assembly according to claim 6, characterized in that The cross section of the guide channel (213) is circular, and the gap between the guide channel (213) and the ball (23) is in the range of 0.1 mm to 0.2 mm.

8. The loudspeaker assembly according to claim 1, characterized in that The guide frame (21) comprises: an annular fixing frame (211), the fixing frame (211) being arranged on the wheel center cover (1); A plurality of guide tubes (212), wherein the plurality of guide tubes (212) are respectively disposed through the fixing frame (211), and the guide tubes (212) define the guide channel (213).

9. A wheel hub, characterized in that: include: Hub body (200); A speaker assembly (100), wherein the speaker assembly (100) is the speaker assembly (100) according to any one of claims 1 to 8, and the speaker assembly (100) is mounted on the hub body (200).

10. A wheel hub, characterized in that: It comprises a wheel hub body (200) and a sound-generating module (2), wherein the sound-generating module (2) is arranged on the wheel hub body (200); Wherein, the sound generating module (2) is directly mounted on the wheel hub body (200); or, the wheel hub (1000) further comprises a wheel center cover (1), the wheel center cover (1) is mounted on the wheel hub body (200), and the sound generating module (2) is arranged on the wheel center cover (1); The sound generating module (2) comprises: A guide frame (21), the guide frame (21) being arranged on the wheel hub body (200) or the wheel center cover (1), and a guide channel (213) being arranged inside the guide frame (21); at least one impact member (22), the impact member (22) being arranged on the wheel hub body (200) or the wheel center cover (1); A moving member, the moving member being movably disposed in the guide channel (213) to strike the striking member (22) to produce a sound; The impact members (22) are multiple and include a first impact member (221) and a second impact member (222); one end of the guide channel (213) in the length direction is provided with the first impact member (221), and the other end of the guide channel (213) in the length direction is provided with the second impact member (222); The first impact member (221) and the second impact member (222) are configured to emit sounds of different frequencies when impacted by the moving member; The guide frame (21) is provided with a plurality of guide channels (213), the plurality of guide channels (213) are arranged at intervals along the circumferential direction, each guide channel (213) is correspondingly provided with at least one impact member (22), and each guide channel (213) is provided with the moving member.

11. The wheel hub according to claim 10, characterized in that It also comprises a shell (3), the shell (3) being arranged on the wheel center cover (1) to define a containing cavity (31), and the sound generating module (2) being arranged in the containing cavity (31).

12. The wheel hub according to claim 11, characterized in that The wheel center cover (1) is provided with a sound-transmitting hole (11) communicating with the accommodating cavity (31).

13. The wheel hub according to claim 11, characterized in that The wheel center cover (1) is provided with a matching protrusion (12) extending in the circumferential direction, and the housing (3) and the matching protrusion (12) are sleeved and fixedly matched.

14. The wheel hub according to claim 11, characterized in that The wheel center cover (1) is provided with a plurality of claws (13) arranged around the shell (3), and the claws (13) are suitable for being fixed to the wheel hub body (200).

15. The wheel hub according to claim 10, characterized in that The moving part is a ball (23).

16. The wheel hub according to claim 15, characterized in that The cross section of the guide channel (213) is circular, and the gap between the guide channel (213) and the ball (23) is in the range of 0.1 mm to 0.2 mm.

17. The wheel hub according to claim 10, characterized in that The guide frame (21) comprises: an annular fixing frame (211), the fixing frame (211) being arranged on the wheel hub body (200) or the wheel center cover (1); A plurality of guide tubes (212), wherein the plurality of guide tubes (212) are respectively disposed through the fixing frame (211), and the guide tubes (212) define the guide channel (213).

18. A vehicle, characterized in that: A speaker assembly (100) comprising any one of claims 1-8; or a hub (1000) comprising any one of claims 9-17.

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