Rearview mirror assembly and vehicle

Abstract

The utility model discloses a rearview mirror assembly and a vehicle, the rearview mirror assembly comprises a rearview mirror support, a rearview mirror, a power assembly and a silencing structure, the rearview mirror support is used for being connected with a vehicle body; the rearview mirror is movably mounted on the rearview mirror bracket; the power assembly is installed on the rearview mirror support and / or the rearview mirror, and the power assembly is used for driving the rearview mirror to move relative to the rearview mirror support. The rearview mirror support and / or the rearview mirror are / is provided with the noise reduction structure, and the noise reduction structure is provided with a hollow noise reduction part. According to the rearview mirror assembly provided by the embodiment of the utility model, the silencing structure can be arranged in the rearview mirror and / or the rearview mirror bracket, and the silencing part can weaken the noise brought by the power component in the rearview mirror or the rearview mirror bracket or the friction sound and collision sound of the folding operation of the rearview mirror, so that the noise is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially relates to a rear -view mirror assembly and vehicle. BACKGROUND

[0002] The rear -view mirror of traditional car is generally fixed, and with the development of automobile technology, the electric rear -view mirror gradually replaces the traditional structure. Meanwhile, the addition of intelligent operation experience, the rear -view mirror will produce motor noise, running friction sound and collision sound in the running process due to the existence of motor.

[0003] Since the rear -view mirror is fixed on the vehicle body structure, the vibration transmission such as motor noise, running friction sound and collision sound of the rear -view mirror will be transmitted to the interior sound environment of the vehicle through the vehicle body structure, thereby causing noise interference to the user. In addition, the overall structure of the electric rear -view mirror is compact, and the cavity inside the electric rear -view mirror causes noise amplification. SUMMARY

[0004] The utility model discloses at least solve one of the technical problems in prior art. Therefore, the utility model provides a rear -view mirror assembly, the rear -view mirror support and / or rear -view mirror of rear -view mirror assembly are equipped with the sound -absorbing structure, and the sound -absorbing structure can reduce the noise of the power assembly in the rear -view mirror support and / or rear -view mirror, and reduce running friction sound and collision sound.

[0005] The rear -view mirror assembly according to the utility model embodiment, including: rear -view mirror support, rear -view mirror, power assembly and sound -absorbing structure, the rear -view mirror support is used to be connected with the vehicle body;The rear -view mirror is movably installed in the rear -view mirror support;The power assembly is installed in the rear -view mirror support and / or the rear -view mirror, and the power assembly is used to drive the rear -view mirror relative to the rear -view mirror support movement;The rear -view mirror support and / or the rear -view mirror are equipped with the sound -absorbing structure, and the sound -absorbing structure is equipped with the hollow sound -absorbing portion.

[0006] The rear -view mirror assembly according to the utility model embodiment can set up the sound -absorbing structure in the inside of rear -view mirror and / or rear -view mirror support, and the sound -absorbing structure is equipped with the hollow sound -absorbing portion, and the hollow sound -absorbing portion weakens the noise caused by the power assembly in the rear -view mirror or rear -view mirror support or the running friction sound and collision sound of the rear -view mirror folding, and reduces the noise.

[0007] The rear -view mirror assembly according to the utility model embodiment, the sound -absorbing portion includes sound -absorbing cavity, and the sound -absorbing cavity is communicated with the inside of the rear -view mirror.

[0008] The rear -view mirror assembly according to the utility model embodiment, the sound -absorbing cavity can selectively be equipped with sound -absorbing material.

[0009] According to the rearview mirror assembly provided by the embodiment of the present application, the sound-absorbing part further comprises a plurality of sound-absorbing holes, and the plurality of sound-absorbing holes are communicated with the sound-absorbing cavity.

[0010] According to the rearview mirror assembly provided by the embodiment of the present application, the sound-absorbing structure is arranged on the rearview mirror support and partially extends to the lower part of the rearview mirror, and the sound-absorbing cavity is communicated with the inside of the rearview mirror along the lower part of the rearview mirror.

[0011] According to the rearview mirror assembly provided by the embodiment of the present application, the sound-absorbing structure is provided with a reserved opening, at least part of the reserved opening is open below the rearview mirror and towards the inside of the rearview mirror.

[0012] According to the rearview mirror assembly provided by the embodiment of the present application, the rearview mirror support is externally provided with a mounting shell, the sound-absorbing structure is provided with a avoiding groove, and the mounting shell and the sound-absorbing structure are supported and connected at the avoiding groove.

[0013] According to the rearview mirror assembly provided by the embodiment of the present application, the sound-absorbing structure is provided with a damping protrusion, and the damping protrusion is in interference and pressing between the mounting shell.

[0014] According to the rearview mirror assembly provided by the embodiment of the present application, the damping protrusion is a plurality of, part of the damping protrusion in the plurality of damping protrusions is in interference and pressing with the mounting shell, and part of the damping protrusion is in pressing with the rearview mirror support.

[0015] According to the rearview mirror assembly provided by the embodiment of the present application, at least two sides of the rearview mirror support are provided with the sound-absorbing structure.

[0016] According to the rearview mirror assembly provided by the embodiment of the present application, one of the sound-absorbing structure and the rearview mirror support is provided with a first clamping part, and the other is provided with a second clamping part, and the first clamping part is clamped with the second clamping part.

[0017] The embodiment of the present application discloses a vehicle comprising the rearview mirror assembly.

[0018] The vehicle has the same advantages as the prior art and the rearview mirror assembly, which will not be repeated here.

[0019] Additional aspects and advantages of the present application will be described in part in the following description, some of which will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings, of embodiments of the present application, in which:

[0021] Figure 1 is a structural schematic view of a rearview mirror assembly of an embodiment of the present application;

[0022] Figure 2 is a structural schematic view of a rearview mirror support of an embodiment of the present application without installation of an installation shell Figure One ;

[0023] Figure 3 is a structural schematic view of a rearview mirror support of an embodiment of the present application without installation of an installation shell Figure Two ;

[0024] Figure 4 is a three-dimensional structural schematic view of an embodiment of the present application of a sound attenuation structure Figure One ;

[0025] Figure 5 is a side view of an embodiment of the present application of a sound attenuation structure;

[0026] Figure 6 is a three-dimensional structural schematic view of an embodiment of the present application of a sound attenuation structure Figure Two ;

[0027] Figure 7 is a structural schematic view of another embodiment of the present application of a sound attenuation structure Figure One ;

[0028] Figure 8 is a structural schematic view of another embodiment of the present application of a sound attenuation structure Figure Two ;

[0029] Figure 9 is a structural schematic view of another embodiment of the present application of a sound attenuation structure Figure Three ;

[0030] Figure 10 is a structural schematic view of another embodiment of the present application of a sound attenuation structure Figure Four ;

[0031] Figure 11 is a positional relationship schematic view of an embodiment of the present application of a sound attenuation structure and a rearview mirror support Figure One ;

[0032] Figure 12 is a positional relationship schematic view of an embodiment of the present application of a sound attenuation structure and a rearview mirror support Figure Two ;

[0033] Figure 13 is a positional relationship schematic view of an embodiment of the present application of a sound attenuation structure and a rearview mirror support Figure Three .

[0034] Reference signs:

[0035] Rearview mirror assembly 100,

[0036] Rearview mirror 1, rearview mirror holder 2, mounting shell 21, sound damping structure 3, first sound damping structure 31, damping protrusion 311, avoiding groove 312, sound damping hole 313, sound damping cavity 314, side plate 3141, hook 315, bottom plate 316, second sound damping structure 32, reserved opening 321, vehicle body mounting plate 4, rotating shaft connecting part 5. DETAILED DESCRIPTION

[0037] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and cannot be understood as limiting the present application.

[0038] In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0039] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] Unless otherwise specified, the front-rear direction in the present application is the longitudinal direction of the vehicle, i.e. the X direction; the left-right direction is the lateral direction of the vehicle, i.e. the Y direction; and the up-down direction is the vertical direction of the vehicle, i.e. the Z direction.

[0041] The following description will be made with reference to Figures 1-13The rearview mirror assembly 100 described according to the embodiment of the utility model can be provided with the sound attenuation structure 3 inside the rearview mirror 1 and / or the rearview mirror support 2, and the sound attenuation structure 3 is provided with a hollow sound attenuation part, which weakens the noise caused by the power assembly located inside the rearview mirror 1 or the rearview mirror support 2 or the friction sound and the collision sound of the folding operation of the rearview mirror 1, thereby reducing the noise.

[0042] As Figures 1-13 shown in the utility model embodiment discloses a kind of rearview mirror assembly 100, comprising: rearview mirror support 2, rearview mirror 1, power assembly and sound attenuation structure 3.

[0043] Wherein, rearview mirror support 2 is used to be connected with vehicle body;Rearview mirror 1 is movably installed in rearview mirror support 2;Power assembly is installed in rearview mirror support 2 and / or rearview mirror 1, and power assembly is used to drive rearview mirror 1 movement relative to rearview mirror support 2;Rearview mirror support 2 and / or rearview mirror 1 are provided with sound attenuation structure 3, and sound attenuation structure 3 is provided with hollow sound attenuation part.

[0044] In practice, rearview mirror 1 as important component of automobile, its function mainly helps user to remove visual obstruction, improves driving safety, rearview mirror support 2 is connected with rearview mirror 1, rearview mirror 1 includes rearview mirror shell and rearview mirror lens, rearview mirror lens is installed in rearview mirror shell, rearview mirror lens is used to observe road condition, and rearview mirror 1 is connected to vehicle body by rearview mirror support 2, such as rearview mirror support 2 can be used as the structure of supporting and installing rearview mirror 1, simultaneously, rearview mirror 1 can be folded and stored or unfolded relative to rearview mirror support 2, that is, when vehicle does not need to use, in order to prevent the collision of rearview mirror 1 or reduce the occupied space of vehicle, rearview mirror 1 can be folded and stored relative to rearview mirror support 2, and when vehicle needs to travel, rearview mirror 1 is unfolded to ensure the normal use of rearview mirror lens, to ensure the normal travel of vehicle.

[0045] Then, power assembly can be arranged in rearview mirror support 2 and rearview mirror 1, such as power assembly can extend from rearview mirror support 2 to inside rearview mirror 1, and the electric connection structure or wire of power assembly can reach rearview mirror 1 through vehicle body, the power assembly can be motor and gear set, that is, commonly used power assembly for folding and adjusting angle of rearview mirror 1 relative to rearview mirror support 2, the power assembly is conventional technology, but when rearview mirror 1 is folded and adjusted angle relative to rearview mirror support 2, motor of power assembly works, and the noise radiation of movement vibration of motor and power assembly exists, simultaneously, the collision between rearview mirror 1 and vehicle body exists in the folding process of rearview mirror 1, and the friction and collision sound also exist in the stress extrusion of rearview mirror 1 to rearview mirror support 2, thus, sound attenuation structure 3 can be arranged in rearview mirror support 2 or inside rearview mirror 1 to reduce the influence of various noises when rearview mirror 1 moves.

[0046] Specifically, the sound-absorbing structure 3 can be disposed on the rearview mirror bracket 2, thereby reducing the space occupied by the interior of the rearview mirror 1. The space on the rearview mirror bracket 2 is connected to the space inside the rearview mirror 1. That is, when the noise of the power assembly is transmitted from the interior of the rearview mirror 1 or the rearview mirror bracket 2, the noise can be absorbed by the sound-absorbing structure 3, thereby reducing the noise. In addition, the sound-absorbing structure 3 has a hollow sound-absorbing portion, which is mainly used to absorb noise.

[0047] Therefore, in the rearview mirror assembly 100 of the embodiment of the present invention, the hollow silencer weakens the noise caused by the power component located in the rearview mirror 1 or the rearview mirror bracket 2 or the friction sound and collision sound during the folding operation of the rearview mirror 1, thereby reducing the noise.

[0048] In some embodiments, the muffler portion includes a muffler cavity 314 , which is connected to the interior of the rearview mirror 1 .

[0049] In practice, refer to Figure 2 and Figure 6 As shown, the muffler structure 3 includes a first muffler structure 31 connected to the rearview mirror bracket 2. The first muffler structure 31 can be made of materials such as fiberglass, mineral wool, and foam. The first muffler structure 31 is provided with multiple muffler cavities 314. When vibrating sound waves are transmitted to the first muffler structure 31, the sound waves are disturbed in the multiple muffler cavities 314, and some of the vibrating sound waves are absorbed by the muffler cavities 314. In other words, the multiple muffler cavities 314 can absorb the operating vibration of the power assembly and the noise caused by the squeezing and friction of the rearview mirror 1 during the folding process. In addition, the multiple muffler cavities 314 can be spaced apart along the rearview mirror 1 to the side closest to the vehicle body. In other words, the noise from the power assembly can be gradually absorbed by the multiple muffler cavities 314, improving the noise reduction effect.

[0050] In some embodiments, the muffler cavity 314 may optionally be provided with a muffler material. In practice, the muffler material is often a loose, porous material, such as felt, plastic film, or sponge. When sound waves propagate, they are repeatedly reflected in the porous structure, creating friction and resistance that converts the sound wave energy into heat, thereby reducing noise and echoes.

[0051] In some embodiments, the muffler portion further includes a plurality of muffler holes 313 , and the plurality of muffler holes 313 are communicated with the muffler cavity 314 .

[0052] Specifically, the plurality of sound holes 313 can interfere with sound waves, and part of the sound energy is converted into heat energy by friction in the pores of the material, thereby consuming sound energy, so that the sound waves passing through the sound holes 313 are attenuated; of course, when designing the sound holes 313, the sound absorbing cavities 314 can also be provided at the same time, or the sound holes 313 can be designed at the same time, and the sound absorbing material can also be provided in the sound absorbing cavities 314, to achieve the effect of jointly absorbing noise. The hole diameter of the sound holes 313 of the sound absorbing structure 3 ranges from 1 mm to 3 mm, and the hole distance ranges from 4 mm to 8 mm. For example, the diameter of the sound holes 313 is 1 mm, and the hole distance is 5 mm.

[0053] In some embodiments, the sound absorbing structure 3 is arranged on the rearview mirror support 2 and partially extends to the lower part of the rearview mirror 1, and the sound absorbing cavities 314 are in communication with the interior of the rearview mirror 1 along the lower part of the rearview mirror 1.

[0054] That is, the rearview mirror support 2 is provided with a mounting groove or a mounting portion, so that the sound absorbing structure 3 can be mounted on the rearview mirror support 2, and the size of the sound absorbing structure 3 can be adapted to the size of the mounting groove or the mounting portion of the rearview mirror support 2, so as to ensure that the rearview mirror support 2 can not only support the rearview mirror 1, but also serve as a mounting function for the sound absorbing structure 3; moreover, the rearview mirror 1 includes a mounting cavity, and the sound absorbing cavities 314 of the sound absorbing structure 3 can be in communication with the mounting cavity, so that when the sound waves generated by the vibration or operation of the power assembly are transmitted from the rearview mirror 1 or the rearview mirror support 2, they are directly transmitted to the sound absorbing cavities 314, so that the sound absorbing cavities 314 disturb the sound waves, thereby improving the effect of weakening the sound waves.

[0055] In addition, as shown in Figs. 1 to 3, Figure 1 and Figure 3 It is shown that part of the sound absorbing structure 3 is arranged at the lower part of the rearview mirror 1, that is, the lower part of one end of the rearview mirror 1 is rotationally and foldably connected to the rearview mirror support 2. For example, the rearview mirror support 2 is provided with a rotating shaft connecting portion 5 for connecting a rotating shaft, and the rotating shaft is fixedly connected to the rearview mirror 1 and rotates relative to the rotating shaft connecting portion 5. Therefore, the rearview mirror 1 can be rotationally and foldably connected to the rearview mirror support 2. For example, the axis of the rotating shaft can extend vertically along the vehicle, or the rotating connection between the rearview mirror 1 and the rearview mirror support 2 can adopt a conventional connection mode. The mounting cavity in the rearview mirror 1 is in communication with the sound absorbing cavities 314 in the sound absorbing structure 3 at this position, so as to ensure the stability of the mounting of the rearview mirror 1 on the rearview mirror support 2. The power assembly includes a motor, a rotating shaft for rotationally and foldably connecting the rearview mirror 1 to the rearview mirror support 2, and other gear power transmission members, etc. The partial extension of the sound absorbing structure 3 to the lower part of the rearview mirror 1 ensures that the sound absorbing structure 3 is closer to the power assembly, thereby better weakening the noise.

[0056] In some embodiments, the sound absorbing structure 3 is provided with a reserved opening 321, at least part of which is open downward of the rearview mirror 1 and towards the interior of the rearview mirror 1.

[0057] In practice, the sound attenuation structure 3 can be one or more than one, when the sound attenuation structure 3 is one, the first sound attenuation structure 31 or the second sound attenuation structure 32 can be used in the embodiment of the utility model, when the sound attenuation structure 3 is more than one, the first sound attenuation structure 31 and the second sound attenuation structure 32 can be used in the sound attenuation structure 3; as shown in Figure 7 and Figure 8 The second sound attenuation structure 32 is provided with a reserved opening 321, when the second sound attenuation structure 32 is installed on the rearview mirror support 2, the reserved opening 321 faces the upper side of the vehicle, of course, the sound attenuation material can also be put into the sound attenuation cavity 314 along the reserved opening 321, as shown in Figure 4 The reserved opening 321 of the sound attenuation cavity 314 of the first sound attenuation structure 31 also faces upward, the sound attenuation material can also be put into the reserved opening 321 of the first sound attenuation structure 31, when the sound attenuation structure 3 is partially located at the bottom of the rearview mirror 1, the reserved opening 321 of the sound attenuation structure 3 partially faces the inner side of the rearview mirror 1, so that the sound wave of the power assembly located at the rearview mirror 1 or the connection position of the rearview mirror 1 and the rearview mirror support 2 can be better transmitted to the sound attenuation cavity 314 of the sound attenuation structure 3 from the reserved opening 321, thereby improving the effect of weakening the noise.

[0058] In some embodiments, the mounting shell 21 is arranged outside the rearview mirror support 2, the sound attenuation structure 3 is provided with an avoiding groove 312, and the mounting shell 21 and the sound attenuation structure 3 are supported and connected at the avoiding groove 312.

[0059] Referring to Figure 1 The mounting shell 21 outside the rearview mirror support 2 is connected with the rearview mirror 1, when the first sound attenuation structure 31 is arranged between the mounting shell 21 and the rearview mirror support 2, referring to Figure 3 and Figure 4 The avoiding groove 312 of the first sound attenuation structure 31 is arranged between the two sound attenuation cavities 314 and located at the middle position of the first sound attenuation structure 31, when the mounting shell 21 is connected with the rearview mirror support 2, the first sound attenuation structure 31 is first connected with the rearview mirror support 2, and then the mounting shell 21 is connected with the rearview mirror 1, for example, the partial mounting shell 21 extends towards the inner side and is overlapped and connected at the avoiding groove 312 of the first sound attenuation structure 31, so that the compactness and integrity of the connection between the mounting shell 21 of the rearview mirror support 2 and the rearview mirror 1 are ensured, and the compactness and stability of the connection between the first sound attenuation structure 31 and the mounting shell 21 and the rearview mirror support 2 are also improved.

[0060] In some embodiments, the sound attenuation structure 3 is provided with a damping protrusion 311, and the damping protrusion 311 is in interference and abutting pressure with the mounting shell 21.

[0061] Referring to Figure 4 and Figure 6As shown, the first sound attenuation structure 31 comprises a bottom plate 316, a plurality of side plates 3141 are arranged on the bottom plate 316, and the plurality of side plates 3141 enclose two spaced sound attenuation cavities 314, and the avoiding groove 312 is located between the two sound attenuation cavities 314, that is, the two sound attenuation cavities 314 share one bottom plate 316; and the side plate 3141 of the first sound attenuation structure 31 facing the inner wall of the mounting shell 21 is provided with a damping protrusion 311, which can be a rubber damping column, a damping pad, or other buffering columns that can buffer, etc. The length of the damping protrusion 311 can be set according to the outer shell of the mounting shell 21, and when the mounting shell 21 is connected with the rearview mirror 1 and the rearview mirror support 2, the damping protrusion 311 is pressed between the inner wall of the mounting shell 21.

[0062] When the rearview mirror 1 is folded and stored, the rearview mirror 1 will have a certain extrusion force on the mounting shell 21 and the rearview mirror support 2, that is, the running extrusion of the rearview mirror 1 will exist, and the stress generated by friction during the running of the rearview mirror 1 will be transmitted to the mounting shell 21 and the rearview mirror support 2, thereby extruding the structure in the mounting shell 21. By setting the damping protrusion 311, the extrusion force can be buffered, and the friction generated by the extrusion can be reduced, thereby reducing the noise caused by friction. Of course, when the second sound attenuation structure 32 is provided, the second sound attenuation structure 32 is also provided with a damping protrusion 311, which is pressed between the mounting shell 21, and can also absorb the extrusion force of the vibration, thereby reducing the friction and noise.

[0063] In some embodiments, the damping protrusions 311 are a plurality of damping protrusions 311, and part of the plurality of damping protrusions 311 are pressed with interference with the mounting shell 21, and part of the plurality of damping protrusions 311 are pressed with interference with the rearview mirror support 2.

[0064] In practice, the first sound attenuation structure 31 is provided with a plurality of damping protrusions 311, the plurality of damping protrusions 311 are spaced apart, and when the mounting shell 21 is connected to the outside of the first sound attenuation structure 31, the mounting shell 21 is extruded with the plurality of damping protrusions 311; in addition, the side of the rearview mirror support 2 away from the rearview mirror 1 also comprises a vehicle body mounting plate 4, the vehicle body mounting plate 4 is mounted to the vehicle body, and the first sound attenuation structure 31 is also provided with a plurality of damping protrusions 311 pressed between the vehicle body mounting plate 4 of the rearview mirror support 2, the lengths of the damping protrusions 311 at different positions of the first sound attenuation structure 31 are different, the diameters of the plurality of damping protrusions 311 are 5mm, and the lengths are determined by the space distance between the mounting shell 21 and the rearview mirror support 2, and the lengths are kept with interference of 0.5mm, which can also reduce the extrusion friction force of the rearview mirror 1 on the rearview mirror support 2 and the mounting shell 21 during movement or collision with the vehicle body, thereby reducing the noise. Similarly, the damping protrusions 311 of the second sound attenuation structure 32 are also provided as a plurality of damping protrusions 311, and the plurality of damping protrusions 311 of the second sound attenuation structure 32 are pressed between the mounting shell 21, which can also achieve the effect of buffering and reducing noise.

[0065] In some embodiments, at least two sides of the mirror support 2 are provided with the sound-absorbing structure 3. Referring to Figure 2 As shown, the mirror support 2 has a certain space on both sides of the front and rear of the vehicle, and the operation noise, structural friction noise and the like generated by the motor of the power assembly are amplified through the space below, and the first sound-absorbing structure 31 and the second sound-absorbing structure 32 are respectively arranged in the space. Figure 2 In some embodiments, the second sound-absorbing structure 32 is installed on the rear side of the vehicle along the mirror support 2, and the first sound-absorbing structure 31 is installed on the front side of the vehicle along the mirror support 2, and the first sound-absorbing structure 31 and the second sound-absorbing structure 32 are both provided with sound-absorbing cavities 314, sound-absorbing holes 313 and the like, and the local parts of the first sound-absorbing structure 31 and the second sound-absorbing structure 32 extend to the bottom of the mirror 1, and the structure design of the first sound-absorbing structure 31 and the second sound-absorbing structure 32 is adapted to the shape of the mounting shell 21 and the shape of the mirror support 2, and by providing the sound-absorbing structure 3 on at least two sides of the mirror support 2, the weakening effect of the noise generated by the operation or vibration of the power assembly in the mirror 1 and / or the mirror support 2 can be further improved.

[0066] In some embodiments, one of the sound-absorbing structure 3 and the mirror support 2 is provided with a first clamping part and the other is provided with a second clamping part, and the first clamping part is clamped with the second clamping part.

[0067] When the first sound-absorbing structure 31 is installed on the mirror support 2, the first sound-absorbing structure 31 is provided with a hook 315, and the second sound-absorbing structure 32 is also provided with a hook 315, such as an open L-shaped or U-shaped fixed lug, and the corresponding mirror support 2 is provided with a hanging groove or a hanging hole, which can be used for hanging and clamping the free end of the L-shaped or U-shaped fixed lug, at this time, the first clamping part can be the L-shaped or U-shaped fixed lug, and the second clamping part is the hanging groove or the hanging hole; of course, in actual design, the L-shaped or U-shaped fixed lug can be provided with multiple, so as to improve the connection reliability of the sound-absorbing structure 3 and the mirror support 2; at the same time, the sound-absorbing structure 3 is connected with the mirror support 2 in a detachable manner, which can be directly embedded and installed on the mirror support 2, without the need for screw installation, easy to install and take down, combined with the damping protrusion 311 of the sound-absorbing structure 3 and the interference design of the mounting shell 21, the stability of the sound-absorbing structure 3 is improved.

[0068] In addition, it should be noted that, since the operation noise radiation of the mirror 1 mainly reflects the medium-high noise, the principle of the embodiment of the utility model adopts the sound absorption mode of multiple sound-absorbing holes 313, and the hole diameter and hole distance of the multiple sound-absorbing holes 313 have been determined.

[0069] Different perforation features have different absorption peak frequencies, and according to the calculation formula of the resonance sound absorption frequency f, it can be known that

[0070]

[0071] Wherein, L is the air layer thickness of the side plate 3141 of the sound absorption structure, which can also be understood as the air layer thickness in the sound absorption cavity 314; t is the plate thickness of the side plate 3141 of the sound absorption structure; d is the hole diameter of the sound absorption hole 313; c is the sound speed; P is the perforation rate of the perforated side plate 3141.

[0072] According to the perforation rate calculation formula of the perforated side plate 3141, when the circular holes are arranged in a square shape, the perforation rate calculation formula is:

[0073]

[0074] In the formula, d is the diameter of the circular hole, and B is the hole distance between adjacent two holes. According to the specific structure of the first sound absorption structure 31 and the second sound absorption structure 32 selected by the embodiment of the utility model, the perforation rate of the side plate 3141 of the sound absorption structure 3 is 3.1% which can be calculated. Through the perforation rate calculation result, the sound absorption structure 3 can absorb the peak frequency which can be obtained by substituting the formula:

[0075]

[0076] Wherein, f1 represents the absorbable peak frequency of the first sound absorption structure 31, and f2 represents the absorbable peak frequency of the second sound absorption structure 32. In order to further strengthen the absorption effect of the sound absorption structure 3, sound absorption materials such as sound absorption cotton and other acoustic materials can be added in the inside of the sound absorption structure 3. The addition of the sound absorption materials can increase the internal resistance of the sound absorption structure 3, so that the sound absorption peak moves to low frequency.

[0077] The utility model discloses an embodiment further discloses a vehicle, including the rear -view mirror assembly 100 of above, can set up the sound absorption structure 3 in the inside of rear -view mirror 1 and / or rear -view mirror support 2, and the sound absorption structure 3 is equipped with hollow sound absorption part, and hollow sound absorption part weakens the noise that the power assembly is located in rear -view mirror 1 or rear -view mirror support 2 brings or the friction sound and the crash sound of folding operation of rear -view mirror 1, improves the noise reduction performance of the rear -view mirror 1 of vehicle.

[0078] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" 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 utility model. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0079] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A rearview mirror assembly (100), characterized in that: include: A rearview mirror bracket (2), wherein the rearview mirror bracket (2) is used to be connected to the vehicle body; A rearview mirror (1), wherein the rearview mirror (1) is movably mounted on the rearview mirror bracket (2); a power assembly, the power assembly being mounted on the rearview mirror bracket (2) and / or the rearview mirror (1), and the power assembly being used to drive the rearview mirror (1) to move relative to the rearview mirror bracket (2); A sound-absorbing structure (3), wherein the rearview mirror bracket (2) and / or the rearview mirror (1) is provided with the sound-absorbing structure (3), and the sound-absorbing structure (3) is provided with a hollow sound-absorbing portion.

2. The rearview mirror assembly (100) according to claim 1, characterized in that: The muffler portion includes a muffler cavity (314), and the muffler cavity (314) is communicated with the interior of the rearview mirror (1).

3. The rearview mirror assembly (100) according to claim 2, characterized in that: The silencing cavity (314) may optionally be provided with silencing material.

4. The rearview mirror assembly (100) according to claim 2, characterized in that: The muffler portion further comprises a plurality of muffler holes (313), and the plurality of muffler holes (313) are in communication with the muffler cavity (314).

5. The rearview mirror assembly (100) according to claim 2, characterized in that: The muffler structure (3) is provided on the rearview mirror bracket (2) and partially extends to the lower part of the rearview mirror (1), and the muffler cavity (314) is connected to the interior of the rearview mirror (1) along the lower part of the rearview mirror (1).

6. The rearview mirror assembly (100) according to claim 5, characterized in that: The muffler structure (3) is provided with a reserved opening (321), and at least a portion of the reserved opening (321) is below the rearview mirror (1) and opens toward the interior of the rearview mirror (1).

7. The rearview mirror assembly (100) according to claim 5, characterized in that: The rearview mirror bracket (2) is provided with a mounting shell (21) outside, the muffler structure (3) is provided with an avoidance groove (312), and the mounting shell (21) and the muffler structure (3) are supported and connected at the avoidance groove (312).

8. The rearview mirror assembly (100) according to claim 7, characterized in that: The noise reduction structure (3) is provided with a vibration reduction protrusion (311), and an interference fit is formed between the vibration reduction protrusion (311) and the mounting shell (21).

9. The rearview mirror assembly (100) according to claim 8, characterized in that: There are a plurality of vibration-damping protrusions (311), some of which are pressed against the mounting shell (21) in an interference fit, and some of which are pressed against the rearview mirror bracket (2).

10. The rearview mirror assembly (100) according to claim 1, characterized in that: The sound-absorbing structure (3) is provided on at least two sides of the rearview mirror bracket (2).

11. The rearview mirror assembly (100) according to claim 10, characterized in that: One of the noise reduction structure (3) and the rearview mirror bracket (2) is provided with a first clamping portion and the other is provided with a second clamping portion, and the first clamping portion is clamped with the second clamping portion.

12. A vehicle, characterized in that: The invention comprises a rearview mirror assembly (100) according to any one of claims 1 to 11.

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